Thursday, October 31, 2019

Ethical dilemmas Essay Example | Topics and Well Written Essays - 1000 words

Ethical dilemmas - Essay Example Ethical practices make good business sense, because ethical companies suffer less resentment, less litigation, and less regulatory oversight. Furthermore, ethical managers and ethical businesses tend to be more trusted and better treated by employees, suppliers, stockholders, and consumers. Organizations are a reflection of society; they are the method by which individuals unite to form a network of common interest. And each organization is a fluid enterprise. At its center are the managers and executives responsible for directing the resources of the company. Shareholders own the capital and expect a return on their investment. Workers produce the goods and expect a decent wage and safe working conditions. To have a successful enterprise, each group must be responsive to the others and balance its interest against the interests of the others. When the balance is upset or when the interests pull too hard against each other, the ethical system is damaged. For an enterprise to continually give value to human effort and to encourage creative achievements, a balance of all interests is required ( Parry, 2001). Administrative actions are shaped by three domains: legality, free choice, and integrity. The law defines and constrains the limits of potential actions, specifying the bounds of lawful behavior. What is legal is not necessarily moral; what is not prohibited by law is not necessarily ethical; and what minimally meets the law is not necessarily proper. While the law codifies customs, ideals, beliefs, and moral values of a society, it cannot possibly cover all possible human actions (Beauchamp, Bowie, 2002). The rightness of actions is constrained by the third domain, integrity, which is obedience to the unenforceable. This represents unwritten, often unspoken, guidelines for behavior for which no legal mandates or prohibitions exist. It is the grey area where neither law nor free choice prevail. This is the realm of integrity, the necessary foundation for ethical decision making. Ethics is different from law because it involves no formal sanctions. It is different from etiquette because it goes beyond mere social convention. It is different from religion because it makes no theological assumptions. It is different from aesthetics because it is aimed at conduct and character rather than objects. It is different from prudence because it goes beyond self-interest to include the interests of others. It is different from finance and marketing and governing and parenting and carpentry, in that it does not involve a special purpose or special role as its point of departure. Ethics is both a process of inquiry and a code of conduct. Ethical inquiry consists of asking the questions of what is good and what is evil, what is right and what is wrong. As a code of conduct, it is a sort of inner eye that enables people to see the rightness or wrongness of their actions. Values are core beliefs about what is intrinsically desirable. They underly the choices made in work decisions just as they underlie the choices made in one's private life. They give rise to ideals that are called ethics or morals. The two terms are sometimes confused. Actually, ethics and morals are synonymous. While ethics is derived from Greek, morals is derived from Latin. They are interchangeable terms referring to ideals of character and conduct. These

Tuesday, October 29, 2019

Geography Lab Report Example | Topics and Well Written Essays - 250 words - 2

Geography - Lab Report Example The third category â€Å"Good Alternative†, its application is mainly evident worldwide where the coverage encompasses unregulated sea regions. Hence, depict good records in comparison to other techniques if applied to the similar coverage. Additionally, Yellowfin Tuna’s capability to reproduce quickly also aids in boosting their sustainability despite heavy overfishing especially in the unregulated regions (MBAF). The fish forms the overfished category where there is the utilization of destructive methods especially to the other marine life or environment. In addition, it is unfit for consumption owing to its high mercury content besides other contaminants. Fish’s category chiefly relies on its environment and the mode of fishing that may pose either negative or positive impact on other aquatic life and environment (MBAF). For instance, fish that are in the same group with Hake White usually possess high mercury content besides being unfit for consumption, which is contrary to Barramundi. After attaining this information, I now prefer Barramundi fish, because it does not have any negative effects on human besides its rearing and fishing being environmentally

Sunday, October 27, 2019

Business Environment Of IBM Information Technology Essay

Business Environment Of IBM Information Technology Essay IBM is a leading computer, technology, Service providing Company which is operating business in 180 countries. IBM has started its career in the starting of 20th century in the name of Computing-Tabulating-Recording Company. Now IBM providing services in aerospace, defence, Automotive, Banking, Construction, Electronics, Retail, Telecommunications sectors. IBMs contribution in computer technology development is higher than other companies. This report clearly portrays the Changes in the Business environment IBM in former five years. This report briefly analyzes the succession of steps that has lead to the changes in its business environment. These include formerly the business environment of IBM which explains the background of IBM, nature of business, its products and policies. Secondly, changes of the company environment with the effect of micro environment and a macro environment elements. Thirdly Discussion on analysis such as PESTEL analysis and SWOT analysis and porters five fo rce models, which helps in achieving the business and finally the detailed analysis of financial proceedings and recommendations, some of better suggestions helps to perform them better. 2. Introduction IBM known as an International Business Machines Corporation (IBM) develops and manufactures information technology (IT) products and services towards Worldwide. IBM was formerly known as Computing-Tabulating-Recording Co. and has changed its name to International Business Machines Corporation in 1924. The IBM was established in 1910 and in Armonk, New York (IBM Group 2010). The IBM business environment is organized in such a way that it considers all the political, economical, social, technological factors. These factors determine the impact positive and negative issues of the business. The IBM business strategy considers the gain and benefit of the business as a vital role and aims for it companies to reach the good position. Apart from the consideration of gain and benefits IBM also aims to become one of the world ranking companies and to reach the good position in worlds market. 3. IBM Strategy The main goal of IBM is to promote dedication to every clients success. It pays more attention to raise the trust to all the clients and the client customers and maintain the personal responsibility. IBM has its own impressive factors and unimpressive factors and business operation is considered as impressive factor whereas the unimpressive factor may be due to some influences of the company. IBMs business strategy is due to the maintenance of the business stability. The business stability is maintaining the detail analysis of the competition between the top companies of the world. (IBM Group 2010). The IBM considers consumers choice of softwares, hardware products such as price, quality of the product and IT services as the organization competition as so the business environment in IBM is unique. The following factors are some of the business strategies in IBM are as follows, IBMs has achieved in its business strategy with the international competitors so it has improved its business and strategy level thus they become the successor in business and they develop quality product in new markets with good services. IBMs Systems and Technology segment provides an new vision to the computing and storage solutions, including servers, hard disk, hardware technologies such as microelectronics, retail store solutions, and semiconductor technology, products, and packaging solutions IBM (2008). Thus the IBMs Global Financing segment provides lease and loan financing to external and internal clients; and sale and lease of used equipment. It serves financial services, public, industrial, distribution, communications, and general business sectors. The IBMs international organizations are more advantageous over the smaller ones as it has a massive collision on international business stakeholders through their activities. Thus IBM has achieved a tremendous growth in the last five years fulfils market and stakeholder expectations then those business strategies are highly visible. 4. Business Environment of IBM Business environment of the company is influenced by a lot of external factors that affects the outcomes of the operations of the company and its services. Some of the factors can be restricted within the control of the company whereas others factors may be ahead of control of the Company. (Ian Worthington Chris Britton, 2006) .Internal and external factors based upon the influence on the business thus to rectify the factors there are some tools that have been developed by decision makers who have vast experience in field based on Micro environment factors, SWOT and PESTLE analysis which provides the superior analysis to the factors that affect a business. The Business environment can be categorized into two sections, they are Micro Environment Macro Environment 4.1 Micro Environment These are the factors which affects the growth of the organisation. 4.1.1 Customers Customers are those who play a key role in deciding the Organisation Success. An Organisation should satisfy their customers with good services and innovative products towards their extent as a replica that in turns it should create a rapid growth in Organisation profit. (Ian Worthington Chris Britton, 2006)IBM has more number of corporate and government bodies as a client for their services like smarter planet, Business process management systems. The following figure represents the micro environmental factors (Marketing, 2010) C:UsersVenkatDesktoptbestakeholders.jpg Figure Micro Environmental Factors 4.1.2 Competitors An organizations success is deliberated by the benefits offered by the organization which should be ore better than their competitors. (Paul Wetherly, Dorron Otter 2008) Thus it can be analysed by the competitor analysis and monitoring to maintain its position. 4.1.3 Employees Employing and motivating the staff is an indispensable part of the strategic planning process of an organization. In-order to gain a competitive edge the training and development plays a crucial role in service sector marketing. This can be clearly evident in the airline industry. 4.1.4 Media Medias attention on organizations decides the make or break of an organization. Likewise IBMs Smarter planet has gained an positive response to the customers by the media. 4.1.5 Suppliers Price rice in raw material affects the marketing mix strategy of an organization. In order to ensure the competitive and quality products the possible way to achieve is the Closer supplier relationships 4.1.6 Shareholders IBM requires the better inward investment for growth of the business. IBM should satisfy the shareholder needs may result in a change in tactics employed by an organization. It provides the equity in greater percent to shareholders even during the recession time. 4.2 Macro Environment Macro Environment factors are the external factors which affect the company as a whole. Macro Environmental analysis can be done by PESTLE Analysis. PESTLE Analysis Whenever a company starts business in a country it should analyse environment of that country. PEST analysis is mainly focused to take decisions in particular market on the basis of external influence. The macro environment situation can be identified by 6 factors political, Economical, Social and Technological, Legal and Environmental. The following factors represent the pestle analysis (Pestle, 2010). C:UsersVenkatDesktoptbepestel.gif Figure 2 PESTLE Analysis Political Political institutions forms are of various levels which includes the national, regional and international policies. These political factors helps to focus on the policies and actions which is mainly established by administration bodies which authorize the way through which businesses carry out every day activities. Legislation, the might slow down an organization in a number of ways so it has to be strongly examined during decision making. Other concerns based on this legislation are also to be analyzed under the political settings based on the tax schemes and fiscal policy. (Campell Craig, 2005, p.142). Due to the current global economic recession many governments have been influenced to change their economic and financial policies in order to check for the many factors which lead them are increased. Thus they have solved this problem to an extent by adjusting the prices and taxation levels. The recession has been greatly affected by many foreign countries. Recession mainly affect s the foreign trade especially the exports and imports among countries and regions. For Example, Taxation system is most critical issue for IBM as it increases the price of web server products. Economic An Organizations business and the outcomes of the business operations are affected by a bunch of economic factors. The most of the factors may be controlled within the company and it can limit its effect whereas there are some factors may be beyond the control of the Company. Thus these external factors are determined by the decision makers who mainly decides as based on the business how the external factors from within and without that may influence the business of an organization in one way or another. During the recession period in 2007-2009 (Campell Craig, 2005, p.142) there has been a rigorous market clash where the buying ratio of the clients and customers of IBM have been drastically. In order to maintain the marketing condition and financial balance IBM has involved into lot of cost cutting factors that includes the lessening the employees. Social As defined by Campell Craig Social factors are factors those mainly cored on with the people trust and attitudes towards the business and they are directly linked towards the demand and supply for the business (Campell Craig, 2005, p.142). Demographic factors, which comprises of all the instances such as skills, policies and education, rates of birth of people, statistics on population growth and local population shifts from one place to another this may be the city or an another country, thus they have a key role remaining to the fact that they may assist later in the addition of sales. In order to gain a profit a Businesses need to be capable of place their market in several strategies. Let us consider Population, according to the current survey population of USA in June 2009 is 307,006,550, more than 75 % of these people (230,254,912) are using internet. Due to this IBM got more business on IT services and consulting. 4.3.4 Technological Technological factors those factors depend on the rate of technological growth in the industries and sectors. The exploitation of technology in business helps the organization in many ways by including reduction of usage costs and enhanced productivity. In order to balance to the technological changes it is mandatory for businesses to upgrade its market to the upcoming technology. Technological advancement is one of the ways to overcome the recession. Many Space projects implemented by the Governments of both developed and developing countries need super computers which should have the capability of taking fastest decisions. In order to implement those projects the computers should perform the highly technological programs towards great extent. Thus IBM computers are more innovative and it almost meets all the requirements and in general it is a master developing the super computing technology. 5 Legal On considering the legal constraints for IBM are Cyber protection and the production of chemicals that used in making hardware such as carbon, and silicon leads to the cross country business, currency exchange and many legal registrations for their business outsourcing facilities Environmental IBM has contributed its major part to the environmental dimension by developing the major technologies like to trace the weather through-out the world, and develop the computers for NASA for astrological factors such as to set the satellite which monitor the environmental changes towards the global. (Campell Craig, 2005, p.142). IBM has also added some of the innovatory environmental friendly strategies which not only provide the environmental saving factors, but also the cost saving factors like energy cost. 4.4 SWOT Analysis As defined by Albert Humphrey SWOT analysis is a common tool for Strategic planning in business. It is used to estimate the organisations strength, weakness, opportunity and threats. (Paul Wetherly, Dorron Otter, 2008) This tool describes what an organisation should do in current situation and what it should avoid as well as its possible opportunities and threats. The following figure represents swot analysis. (Swot analysis,2010) C:UsersVenkatDesktoptbewiot.jpg Figure SWOT Analysis 4.4.1 Strength IBM has worlds fastest computing and innovative technology like Speech recognition Technology and Blue jene Super computer. It has been reported that Blue jene is 500 times faster than other super computers in the world. Blue jene can compute 500 quadrillion tasks per second. The collaboration between Lenovo and IBM makes extraordinary growth of business in developing countries. Since 2005 IBM maintains a constant growth in Earning per Share (EPS). In 2005 EPS of IBM was $4.91; Innovative business model of the company doubles its EPS to $10.01 in 2009. This rapid growth attracts share holders to invest IBM. 4.4.2 Weakness There is several problems lead to the shortcoming of IBM. The foremost problem is the Older and Aging Technical Personnel, the rate of workers in old age is higher than comparing to adult workers. These old age professionals are not currently updated to the new technologies as they stick to the same standards of development. Secondly the IBM wont accept some of the international agreements and standards such as ISO, Global compact of UN, Inco Terms proposed by international bodies and prefer its own standards. 4.4.3 Opportunity Vast Development in Information Technology and Economic development have moulded people to innovative computing creates more business opportunity to IBM. In 2008 IBM has achieved several business opportunities by its smarter planet concept as it is proved by the project Stockholms intelligent traffic system which is a part of smarter planet concept which is been developed to reduce emission and waiting time in traffic. This system was implemented in London as it has reduced the emission by 12% and increased the users of public transport by 40000. The success of this system creates an opportunity for IBM to implement this system in Brisbane and Singapore. In similar to this Wireless technology of the company attracts clients to implement their IBM has several systems which would have a tendency to make this emerging world to be a highly automated and eventually smarter. 4.4.4 Threats IBM has a number of great competitors in the IT industry such as Sun Microsystems and, Microsoft, but along with its major resources and planned investments and a pure dedicated it has brought its client to its closed and proprietary platforms as a way into a particular architecture. But still there is a strong competition in its hardware industry such as in laptops for example the massive introduction of apple Mac books has tremendously overthrown the sales market in IBM laptops. This competition will result in increased pricing pressure and Intellectual Property maintenance and proceedings. Thus in order to set right and to maintain a balance in its sales and to overcome its diminish in the hardware industry, IBM made a tie up with an Lenovo which is one of the Leading company in the computer sales, in order to increase the sales of the computers. Porters Five force Model The following figure represents the Porters Five force Model (Porter5forces, 2010). C:UsersVenkatDesktoptbeporter5forces.gif Figure Porters five forces Analysis 4.5.1 The threat of new entry Due to the enormous costs on the RD the threat of entrants for the server market was low, and therefore it increases the distribution, the relevant support on products and services, and manufacturing. As taken by the report of IBM statistics shows that, IBM have almost spent nearly $171 million in system and technology for server product in 2005, (IBM ,2008). IBM spent over $1 billion in the Linux operating system in 2005. This is only the barrier based on the cost. But have also been several other barriers which include on techniques of the technology, and distribution channels of the products etc. 4.5.2 Power of Suppliers Biggest processor providers, monopolies of the world are Intel and AMD, is being very strong power on the development and suppliers in chip. Though the rate of power of suppliers capacity has been decreased this result the tough competition between these two companies. The extensive range of customers and towering costs on switching grounds the buyers lack of power to bargain as there is a chance of buying results only in these two companies and this make them an chipping technological giants.( IBM 2008). On the other hand, the power of suppliers for other low technical products requisite material and parts is a great extent lower than the core hardware providers. 4.5.3 Power of buyers Buyers possesses strong bargaining power due to the strong growth of IT business recent times. As IBM has weaker in bargaining there arise a critical situation that there have been many small IT businesses which are competing with IBM. IBM (2008). Moreover the power of buyers on the server products in the UK was high because the buyer did not concentrate to the firm and the switching costs for the buyers were low. Thus there were many product choices for the buyers, e.g. IBM, HP, Dell etc. 4.5.4 The threat of substitutes Threat of substitution, which is meant that fear of the substitutes for the IBM products, is also assumed to be low in case of IBM. As IBM technology products are diverse from other products and remains outstanding and thats there has no substitutes for IBM solutions. IBM (2008). The web hosting business is the principal threat of substitute for the server products in the world as due to its tech-support, simple supervise and low switching costs. 4.5.5 Competitive Rivalry Rivalry of the IBM in the industry is subsequently tougher since there have been many IT businesses emerging in the market and even the smaller companies are competing with and that is different with what differs from IBM offer. As based on the substitutes by 2005, the world server market continues to show promising signs, according to IDC, IBM (2008). the aggressive rivalry in the server market was becoming intense in the world. These competitors of IBM, includes HP, Sun Microsystems, Dell and Fujitsu Siemens Computers. Financial Charts Below figures represents the financial chart of IBM (IBM Group, 2010). Figure Earnings per Share Figure Financial Performance Histories Recommendations IBM can agree to the international agreements and standards in order to maintain the quality of the products. IBM could provide more opportunity to the upcoming professionals in order to move ahead with the newer technologies. IBM can provide open resource to Intellectual Property and Copyright Infringement as they paves way to development of newer technologies. On consideration the market of IBM it maintain its Earning per share as 10$ lead to more shareholders, this has been an gradual increase from the past five years thus in order to maintain and implement more shareholders it can lowers it unwanted costs and reapply it in RD for innovative development. 7. Conclusion In order to conclude IBM has almost achieved its success and promote a better level in the business and market strategy in the past five years and fulfilled the Customer expectations. This report has analyzed the strategies of IBM through various factors and analysis and IBM has almost satisfies all the conditions. But there are some factors that IBM can endeavour to be improved. As these factors heavily affects it high business value. The results on Critical evaluation help the IBM business strategy to get more success in to the market. There has been some suggestions are analyzed and quoted in order to overcomes the problem. Thus on the whole IBM provides more value to the business and the customer satisfaction and with stands it rank in the business world for the past five years.

Friday, October 25, 2019

Analysis of Brazil, Directed by Terry Gilliam Essay -- Film Movie Movi

Analysis of Brazil, Directed by Terry Gilliam As a child develops into an adult there are critical developmental steps that are necessary for a complete and successful transition. The physical transition is the most obvious change, but underneath the thick skin and amongst the complex systems, exists another layer of transitions. Ideas, rationales, ideologies and beliefs all dwell within this layer of each being. It could be said that a nation can also fit this transitional framework. A nation grows in both size (wealth, population, power), and in ideological maturity (emancipation of slaves, civil rights, women’s rights†¦etc). This constant evolution of ideas and size is the foundation of a successful government. Without change and growth, the system currently in effect will grow stagnant and inevitably harmful to the public. The United States encourages an â€Å"American Dream†. Deeply rooted within the capitalistic, republican values of the nation, the American Dream has been pursued by generations. The con cept is simple: to attain one’s stake, your slice of the pie, all that is required is good old fashioned hard work. There is no room in the American Dream to question authority or pursue truth. Of course, one must not think of the activity that hums quietly in the background, that’s just government protecting you and your interests. Brazil, directed by Terry Gilliam, is a film that brings into light often hidden aspects of the American Dream, exposing the bold contradictions that turn the greatest symbol of personal drive into a hauntingly apparent contradiction. The film succeeds in pulling the fallacies of establishment out of the murky soup of facades, and in conveying them using the perverse decomposition of the character ... ...tem. These traits are typical of what has happened throughout history when normal people become subordinate to new and oppressive bureaucracies. It seems that all a treacherous government needs in order to normalize the most disgusting violations of basic human rights is a convincing faà §ade of efficiency. It could be said that the American Dream plays that role in current American society, that it is purely a faà §ade to blind our eyes to the larger system. If the system succeeds in preventing people from gaining awareness of the larger picture, and indeed further compartmentalizes every aspect of life, the line between just and false laws become blurred. Gilliam uses â€Å"Brazil† to bring these often overlooked problems with government to the forefront of his viewer’s mind, making apparent that no element of human life is safe from this type of unconscious degeneration.

Thursday, October 24, 2019

Gender Differences in Fundamental Movement Patterns Essay

Raudsepp and Paasuke (1995) tested 60 8-year olds (33 boys and 27 girls), finding that there are no sex differences in the kinematics of running. However, they found that boys perform better in overhand throwing and in tasks evaluating motor performances and muscle strength. Girls outperformed the boys in two tasks: sit and reach and balance (p. 294). This study merits discussion on several fronts. First, the researchers hypothesize that factors other than biological account for the gender differences in motor skills that they found in their tests (p. 301). Second, the researchers note that biological variables had been considered in previous studies (p. 294), and they made this point a significant aspect of their own investigation. Third, the children were given classes before the testing sessions (p. 295). In trying to account for the results of their study, the authors hypothesize that factors other than biological could account for the gender differences. Biological factors include age, height, weight, and body fatness (p. 294). A factor that could explain these differences is experience. Indeed, the authors note that, in the case of overhand throwing, girls do not have the same amount of experience as boys, and that boys have more memories of practicing overhand throwing (p. 295). In trying to eliminate biological factors from the results of their study, Raudsepp and Pausuke standardized the age factor, as they chose only 8-year olds for their study. They also measured the height, weight, and BMI of their subjects, finding that there were no significant sex differences in height and BMI. However, the boys were heavier than the girls (p. 297). In their choice of subjects, the researchers have chosen groups that differ only in the biological factor of weight. This is a significant point for their study, however, there are other biological factors that could have been considered and that possibly might account for some of the differences the authors observed. For instance, could joint length (in proportion to height) account for the difference in stride lengths in the running kinematics test? Also, if the boys and girls are similar in height and BMI, what aspects of the body composition of boys accounts for their heavier weight? An intriguing aspect of this study is that the researchers gave the children classes before the testing sessions. In these classes, children were taught the proper techniques of running and throwing (p. 295). As these classes likely impacted the children’s performance in the tests, additional information should have been provided to the reader. Who taught these classes? Were the instructors male or female? Were the children separated by gender in the classes, or were boys and girls taught together? An additional component that could make an ideal subject for future investigation would be to test the children both before and after the training sessions. In this way, the elements of experience and technique could be weighed against performance, particularly in the task of overhand throwing. In summary, this study largely confirmed findings from previous studies. The authors, in their attempts to standardize biological factors, bring up important questions to consider in future studies. In the area of biological factors: What accounts for the boys’ heavier weight? Does limb length account for differences in stride length? Is there a difference in body composition or limb length that accounts for girls’ increased flexibility and balance? In respect to environmental factors: How did the technique classes affect the children’s performance?

Wednesday, October 23, 2019

Philippine History, Influences from Other Countries

Capalad, Raul Miguel C. January 3, 2012 2JRN2 I. During the Philippine pre-colonial period, the basic political subdivision was known as the barangay, which is ruled by a datu or â€Å"village chief. † Within the barangay are multiple political divisions, the highest of which is the nobles. The nobles, which include the Datu and his bloodline, are the highest figures in the barangay. The second in rank is the freemen. The freemen are the merchants, fishermen, farmers, and all other workers within the barangay. The lowest division is the slaves. The slaves are divided into two categories, the aliping namamahay, who stay at their owner’s homes, and the aliping sanguigilid, who have their own home but still work for a master. II. Colonialism is, according to the Stanford Encyclopedia of Philosophy, is â€Å"a practice of domination, which involves the subjugation of one people to another†. In the perspective of the Philippines’ past political, historical and social climate, his can somehow be viewed as a positive thing because the Philippines back then was still severely underdeveloped. However if viewed from a moral standpoint, this is a negative concept because it restricts the country (i. e. the Philippines) its natural ability to develop, grow, and prosper on its own. III. The Philippines’ cultures and traditions are very rich and diverse in every sense of the word. This trait can be attributed to the many colonizers that colonized the Philippines, and also the tourists ang businessmen that entered the country. One the the biggest contributors were the Chinese. The Chinese people introduced many things to us in the categories of food, entertainment, and many more. They introduced the use of fireworks, their unique cuisine (like the noodles), porcelain ware, umbrellas, manufacture of gunpowder, and certain mining methods superstitions, etc. The loose style of dressing, like the sleeved jackets and loose trouser of the Muslim Filipino women and the use of flip-flops, are of Chinese influence as well. They are also big players in our economy, with one of the richest and most successful businessmen in the Philippines being of Chinese descent. They have been in the Philippines for a very long time and they have been through what everyone else in the Philippines has been through. As a result, many Filipino surnames are Chinese, like Cojuangco, Lim, Tan, Uy, and Tongco, among others. India also has similar contributions. In cuisine is the making and consumption of the chicken curry, which has an Indian influence. They also introduced Hinduism into the Philippines, although only a small portion of the population practice Hinduism. Our language also has Indian influence. Here are some examples Tagalog * budhi which means â€Å"conscience† in Sanskrit * dukha which means â€Å"one who suffers† in Sanskrit * guro which means â€Å"teacher† in Sanskrit * bathala which means â€Å"supreme God† in Sanskrit lalkambini which means â€Å"princess† in Sanskrit Kapampangan: * kalma which means â€Å"fate† in Sanskrit * damla which means â€Å"divine law† in Sanskrit * mantala which means â€Å"magic formulas† in Sanskrit * sampalataya which means â€Å"faith† in Sanskrit The wearing of a skirt and turban (saro ng and putong; respectively) also came from India. The great hindu epic Mahabarata is Indian. The Arabs’s greatest contribution to the Philippines is Islam, particularly in Mindanao. The sarimanok design, which has been used in a certain network in the Philippines, is also of Arabic influence.

Tuesday, October 22, 2019

4 Ways to Land the Job When You’re Overqualified

4 Ways to Land the Job When You’re Overqualified Say you want to take a break from managerial positions and go back to doing more hands-on, creative work. Or maybe you’ve been laid off and pickings are slim. Perhaps you just want to spend more time with family and friends and don’t mind taking a pay cut. Chances are, you don’t look right on paper for the work you used to do. Here are four ways to circumvent the problem of being overqualified.1. Network Face-to-FaceOnline programs are going to weed you out: you have too many years experience and your salary range is probably too high. You won’t get past the initial cull. But you can still get your foot in the door. Figure out why you want to make this change, hone it into a great elevator pitch, and hit the meet-and-greets. Get in front of as many hiring managers as you can, one-on-one, and make your case. You’ll have much more success with people than with online bots.2. Don’t Bury the LeadYou’re a great candidate, but the hiring man ager will be skeptical of your taking a step backward (in the linear model anyway). Why wait for them to ask? Bring the issue right out into the open yourself by bringing it up first. That way, you control the conversation and the narrative and can really explain your situation and why you’d still be right for them to hire.3. Put Your Heart on Your SleeveIf you were to take all of your hard-won management experience off your resume, there’d be a huge gap. But you can still get rid of it! Add in its place volunteer experience and consulting in your field. If you don’t have any, get started! The career-enriching work will pay off in the long run.4. Tell your StoryOnce you get the interview, you’re almost there. Make it personal. Explain your unique qualifications, but don’t forget to sell yourself- you!- as a good fit for the job. Use your storytelling skills to show them who you are and why this is not just the best move for you, but the best move f or their company.

Monday, October 21, 2019

Turner Surname Meaning and Origin

Turner Surname Meaning and Origin Turner is most commonly an occupational name for one who worked with a lathe to make items of wood, bone, or metal. The name derives from the Old French tornier and Latin Tornarius, meaning lathe. Other possible origins of the Turner surname include: An occupational name for an official in charge of a tournament, from the Old French tornei, meaning a tournament or contest of armed men.A variant of the surname Turnehare, a nickname for a fast runner from the  Middle English turnen, meaning to turn hare, a fast rabbit.An occupational name for a guard in a tower, from the Middle High German turn, meaning tower.A habitational name for someone from any one of various places named Turna, Turno,  Thurn, etc. This origin can be hard to pinpoint to a specific country, meaning individuals with the Turner surname could have come from Poland, Austria, Germany or any number of other countries. Turner is the 49th most popular surname in the United States and the 27th most common surname in England. Surname Origin:  English, Scottish Alternate Surname Spellings:  TOURNIER, TURNEY, DOERNER, DURNER, TARNER, TERNER, TOURNEAU, TURNOR, THURNER, TOURNER, TOURNOR Famous People Sith the Surname TURNER - 18th and 19th century British landscape painterNat Turner - leader of a violent slave rebellion in VirginiaCharles Henry Turner -  pioneering African-American scientist and scholarIke Turner - RB legend; husband of Tina TurnerTed Turner - founder of CNN; philanthropistKathleen Turner - American actressLana Turner - American film actress and pin-up girlJosh Turner - American country music starJohn Turner - 17th Prime Minister of Canada Where Do People With the TURNER Surname Live? Turner is the worlds 900th most common surname, according to surname distribution data from  Forebears. It is most common in various English speaking countries, including New Zealand where it ranks 30th, England (31st), Australia (34th), Isle of Man (34th), Wales (46th) and the United States (48th). WorldNames PublicProfiler  identifies Turner as most prevalent in the Waitomo District of New Zealand, followed by the Otorohanga District. It also identifies the surname as especially common in Tasmania and Western Australia, as well as East Anglia and West Midlands in the United Kingdom. Genealogy Resources for the Surname TURNER 100 Most Common U.S. Surnames Their MeaningsSmith, Johnson, Williams, Jones, Brown... Are you one of the millions of Americans sporting one of these top 100 common last names from the 2000 census? 100 Most Common English Surnames with MeaningsLearn how surnames originated in England, and about the four major types of surnames. Includes a list of 100 of the most popular English surnames along with their meanings. Turner Family Crest - Its Not What You ThinkContrary to what you may hear, there is no such thing as a Turner family crest or coat of arms for the Turner surname.  Coats of arms are granted to individuals, not families, and may rightfully be used only by the uninterrupted male-line descendants of the person to whom the coat of arms was originally granted.   Turner Family Genealogy ForumSearch this popular genealogy forum for the Turner surname to find others who might be researching your ancestors, or post your own Turner query. FamilySearch - TURNER GenealogyAccess over 7 million free historical records and lineage-linked family trees posted for the Turner surname and its variations on this free genealogy website hosted by the Church of Jesus Christ of Latter-day Saints. TURNER Surname Family Mailing ListsRootsWeb hosts several free mailing lists for researchers of the Turner surname. DistantCousin.com - TURNER Genealogy Family HistoryExplore free databases and genealogy links for the last name Turner. The Turner Genealogy and Family Tree PageBrowse family trees and links to genealogical and historical records for individuals with the last name Turner from the website of Genealogy Today. References: Surname Meanings Origins Cottle, Basil.  Penguin Dictionary of Surnames. Baltimore, MD: Penguin Books, 1967.Dorward, David.  Scottish Surnames. Collins Celtic (Pocket edition), 1998.Fucilla, Joseph.  Our Italian Surnames. Genealogical Publishing Company, 2003.Hanks, Patrick and Flavia Hodges.  A Dictionary of Surnames. Oxford University Press, 1989.Hanks, Patrick.  Dictionary of American Family Names. Oxford University Press, 2003.Reaney, P.H.  A Dictionary of English Surnames. Oxford University Press, 1997.Smith, Elsdon C.  American Surnames. Genealogical Publishing Company, 1997.

Sunday, October 20, 2019

The Relative Uncertainty Formula and How to Calculate It

The Relative Uncertainty Formula and How to Calculate It The relative uncertainty or relative error  formula is used to calculate the uncertainty of a measurement compared to the size of the measurement. It is calculated as: relative uncertainty absolute error / measured value If a measurement is taken with respect to a standard or known value, calculate as follows: relative uncertainty absolute error / known value Absolute error is the range of measurements in which the true value of a measurement likely lies. While absolute error carries the same units as the measurement, relative error has no units or else is expressed as a percent. Relative uncertainty is often represented using the lowercase Greek letter delta, ÃŽ ´. The importance of relative uncertainty is that it puts error in measurements into perspective. For example, an error of /- 0.5 cm may be relatively large when measuring the length of your hand, but very small when measuring the size of a room. Examples of Relative Uncertainty Calculations Three 1.0 gm weights are measured at 1.05 g, 1.00 g, and 0.95 g. The absolute error is  ± 0.05 g.The relative error (ÃŽ ´) of your measurement is 0.05 g/1.00 g 0.05 or 5%. A chemist measured the time required for a chemical reaction and found the value to be 155 /- 0.21 hours. The first step is to find the absolute uncertainty: absolute uncertainty 0.21 hoursrelative uncertainty Δt / t 0.21 hours / 1.55 hours 0.135 The value 0.135 has too many significant digits, so it is shortened (rounded) to 0.14, which can be written as 14% (by multiplying the value times 100%). The relative uncertainty (ÃŽ ´) in the measurement for the reaction time is: 1.55 hours /- 14% Sources   Golub, Gene, and Charles F. Van Loan. Matrix Computations – Third Edition. Baltimore: The Johns Hopkins University Press, 1996.Helfrick, Albert D., and William David Cooper. Modern Electronic Instrumentation and Measurement Techniques. Prentice Hall, 1989.

Saturday, October 19, 2019

Modern Types of Families Essay Example | Topics and Well Written Essays - 750 words

Modern Types of Families - Essay Example I also believe that current family organizations are loosely connected with only a few relatives being able to identify with each other. The transition in American and the rest of the world families was influenced by the invention of farming. This changed the people’s way of life from hunters and gathers to a more settled life where they provided a workforce in the farms. Farming changed the lives of people to a more organized family unit as compared to the scattered life they used to live before. This form of life gave them a sense of family identity (Alvin and Toffler, 596). The family units were so big that they included distant relatives, friends and even strangers. The number of children in each family was greater than the old people and the lifestyle encouraged people to sire more children. This was also very important and was considered as part of wealth through family labor. It gave people status in the society since the more children one had the more he or she was res pected. This form of settlement was polygamous and men were respected in terms of the number of wives they had. People performed similar jobs since there were limited opportunities which were mainly farming (Samuels, 114). I believe this kind of settlement was necessary because families were sources of cheap labor and the more family members they were the more the production and hence increasing wealth for the family. The next transition was characterized by the emergence of industries. People settled in small family units as white collar workers and had small family units. Marriage was respected during that era and women played the role of housewives (Alvin and Toffler, 59). Men worked in the industries to provide for their families. Family sizes reduced drastically as people moved to urban areas where there were industries. Also, education was valued and children started attending local schools. The families were mainly composed of father, mother and a few children.  Ã‚  

Friday, October 18, 2019

Unit 6 PP mini Coursework Example | Topics and Well Written Essays - 250 words

Unit 6 PP mini - Coursework Example Diversity is very critical when it comes to the aspect of a high-performance team. An effective team has to have members who have a widespread range of experiences and skills from which to draw for guidance, motivation and support (Melton, 2008). In reference to the birthday planning project, diversity is necessary since the party involves many activities such as decoration, cleaning of the environment, invitation, and purchase of requirements. The team members have to have particular weaknesses and strengths that complement each other. Another example, where diversity is necessary, is during the actual party where each team member is expected to play his/her role for the team to run smoothly. A high-performance team rely on effective communication so as to pool their work efforts (Rad & Levin, 2003). Additionally, there should be effective written and oral communication that is concise and clear. It is also important for each team member to feel contented and able to speak out about his/her given responsibilities making effective communication is vital to the birthday party project. Effective communication allows the team member to provide their creative ideas on the topic, and this is very important for the birthday party. A team member may add an idea, for instance, towards the decoration of the party. Clear goals and expectations drive a high-performance team. Having a team working toward the same objective and should be undoubtedly understood by all the team members (Melton, 2008). Additionally, each team members has to know their responsibilities clearly in the project. In reference to the birthday party project, all the team members should be mindful that the end goal is to create the best birthday party without any setbacks. The team members also have to know their responsibilities properly and take them seriously so as to achieve the end goal. Lastly, members of a high-performance team have to trust each other in

Organizational Performance Assignment Example | Topics and Well Written Essays - 2250 words

Organizational Performance - Assignment Example Usually, upon observing the extrinsically motivated employees, even the intrinsically motivated people may start to improvise on their perfection for attaining such extrinsic benefits. A manager should understand the types of motivation he should employ according to the personality of the employee and behave accordingly. The same differences can be tabulated in Appendix 1. (Quinn. S., 2010) The point where intrinsic and extrinsic motivations get exchanged is the ultimate place for job satisfaction and performance. However, this goal can never be explained arbitrarily. It has to be explained in terms of processes which have been enumerated in the following theories: Maslow’s Need Hierarchy: Every human being has 5 levels of needs, one superior to the other as explained in Appendix 2: It is the tendency of every individual to try and satisfy the needs from the bottom of the triangle to the top. Once the physiological needs get satisfied, he moves on to the security oriented needs and so on. As he starts moving higher up, the extrinsic rewards for which he was earlier motivated should be accompanied by his intrinsic motivation to achieve job satisfaction and performance. There is a natural tendency to move up and down the triangle continuously according to the circumstances. Herzberg’s theory of hygiene and motivation: Factors of hygiene contribute to the extrinsic motivation and constitute of work conveniences like good relationships with peers, supervisors, salary etc.

Thursday, October 17, 2019

Financial Statement report Essay Example | Topics and Well Written Essays - 1500 words

Financial Statement report - Essay Example The users of financial statements are the various stakeholders of a company that are concerned with the company's performance, progress and position during a financial year. The financial statements should provide useful information to the relevant users and stakeholders of the company with respect to their specific needs. The main users of financial statements and their needs are discussed below: This is the most important group interested in the financial performance, financial position, financial adaptability, cash generation and cash flow status of the company. The shareholders and investors invest their money into the company and need the information from financial statements to asses the company's performance in terms of managing and utilizing their investments and generating profit out of it. The lenders and creditors of a company are interested in the company's position in terms of liquidity and solvency. The financial statements of a company should provide relevant information to its various lenders and creditors so as to enable them to analyze the company's ability to pay its short and long-term liabilities and obligations. The regulatory authorities and government agencies are concerned with the full and clear disclosure of information in the company's financial statements. The government ensures that the company prepares the financial statements in the light of relevant rules and regulations. ... The disclosure of relevant information can strengthen the customer trust in the company. General Public and Analysts General public and analysts could be considered as the company's prospective investors or they may approach the company's financial statements to provide the information regarding the company's investment and profitability potential to the investors. They are concerned with the company's financial position and performance to analyze the future prospects of the company. INTERNAL USERS Management The company's management is also among the major users of financial statements. They need to draw useful information from the financial statements in order to realize the company's revenues and their share in the company's profitability. Apart from that, they also need information from financial statements to analyze the result of their performance throughout the year and make provisions regarding the future. Employees The employees are also the internal users of the company's financial statements. They are the one contributing their efforts in the company's performance and profitability. They need information from financial statements to evaluate how the company is compensating them for their efforts as compared to its overall profitability. NECESSARY QUALITIES FOR FINANCIAL STATEMENTS The financial statements should contain the following qualities so as to provide maximum useful information to the various stakeholders of the company: Understandability The financial statements should be readable and understandable for all its targeted users. All the information and disclosures included in the financial statements should be well-presented to help the

Organization design ((anthonys pizza) Essay Example | Topics and Well Written Essays - 500 words

Organization design ((anthonys pizza) - Essay Example If these workers had some basic training for making simple things in the kitchen, it would go a long way in reducing wastage of time. In turn, customers would not experience enforcement, which is to stand in line for a long time. Overall, the time wastage and the high training costs may receive quick resolution. Currently, after the training, the new employees have three trials and then the management may subjectively decide whether to retain the employees or dismiss them. At that point, the pizzeria loses money used to train employee. If the employees after the hiring and training process, were given contracts to sign, which implied the subjective letting go would not exist anymore, Anthony’s pizza would save significant cash. In addition, Anthony’s pizza may only hire the employees they need all year round, and hire a few casual labourers during the peak period. When Anthony’s pizza is making a decision to train an employee, this does not entail formal evaluation. Before employees’ introduction to the work environment, they ought to undergo meticulous evaluation. This will reduce the probability of placing employees who have undergone inadequate training meant for the working settings. This is because it is in the nature of poorly trained employees to be wasteful. They also have a higher probability of making mistakes, which wastes foods and other products and wastes time. The wastage may be reduced by properly evaluating employees before placing them in the working environment. In addition, most employees who are let go are always bitter and claim that everything seemed perfect until they were let go. This means that they never saw it coming. This is especially due to being put in the working environment before proper evaluation. The management should review the performance of the new employees during trials and tell them are as that need improvement instead of firing them. This again will

Wednesday, October 16, 2019

Female Nudity or Male Nudity Research Paper Example | Topics and Well Written Essays - 1000 words

Female Nudity or Male Nudity - Research Paper Example Regulations against nudity have primarily gone a notch higher with the FCC and the MPA putting much emphasis on what cannot be said or seen on television. The rules have become tighter with every television programme forced to adhere to these rules. The FCC generally controls the airwaves making sure that what is aired is consumer friendly and has a positive impact on the loyal viewers. The FCC has laid down concrete rules against the use of profane language that might be seen to be a nuisance to the viewers. On what can be aired on television, the FCC has strong rules against pornography and sexual scenes and any other scenes with even brief traces of nudity suggesting that such thing can lead to viewer boycotts and other media controversies (Eisenach & Randolph 145). The need for a rating system is to work hand-in-hand with the parents and informing them what the movies are really about so that the parents can make informed decisions on whether to allow their children access to such movies or not. The MPAA has significantly failed in its role and has just made decisions, which have sometimes been seen as politically manipulated. The principal role of the MPA should be to simply uphold a genuine rating system. The MPA has always rated films according to the themes that they portray, violence, drug abuse and language have been some of the themes that the MPA has emphasized on but, one theme that has had the most attention is nudity with the MPA treating films with this theme more severely compared to other themes (History of Cinema 21). It is evident from the regulations of both the FCC and the MPA that nudity has been given no chance. Both organizations have a strong stand against it and they generally cannot stand nudity. This, however, is unfair, as we have witnessed a rather biased approach towards nudity as compared to other themes on television and in the motion pictures. Male nudity has

Organization design ((anthonys pizza) Essay Example | Topics and Well Written Essays - 500 words

Organization design ((anthonys pizza) - Essay Example If these workers had some basic training for making simple things in the kitchen, it would go a long way in reducing wastage of time. In turn, customers would not experience enforcement, which is to stand in line for a long time. Overall, the time wastage and the high training costs may receive quick resolution. Currently, after the training, the new employees have three trials and then the management may subjectively decide whether to retain the employees or dismiss them. At that point, the pizzeria loses money used to train employee. If the employees after the hiring and training process, were given contracts to sign, which implied the subjective letting go would not exist anymore, Anthony’s pizza would save significant cash. In addition, Anthony’s pizza may only hire the employees they need all year round, and hire a few casual labourers during the peak period. When Anthony’s pizza is making a decision to train an employee, this does not entail formal evaluation. Before employees’ introduction to the work environment, they ought to undergo meticulous evaluation. This will reduce the probability of placing employees who have undergone inadequate training meant for the working settings. This is because it is in the nature of poorly trained employees to be wasteful. They also have a higher probability of making mistakes, which wastes foods and other products and wastes time. The wastage may be reduced by properly evaluating employees before placing them in the working environment. In addition, most employees who are let go are always bitter and claim that everything seemed perfect until they were let go. This means that they never saw it coming. This is especially due to being put in the working environment before proper evaluation. The management should review the performance of the new employees during trials and tell them are as that need improvement instead of firing them. This again will

Tuesday, October 15, 2019

European effect on American-Indian cultures and religion in the 17th century Essay Example for Free

European effect on American-Indian cultures and religion in the 17th century Essay The historical emergence of Europeans during the 17th century was synonymous to providing fundamental influence to the American- Indian and especially the New England. This was evidence of the religious rejuvenation that went across to these cultures as affected by the Europeans. Historically, the early European missionaries brought quite a broad diversity of activity in the eastern parts of North America as at 17th century. However, New England was perhaps the central point with which such influence was mostly affected. This was from the long activity of religious autonomy campaign by the European with the Puritans who wanted to make a win to the Massachusetts, Wampanoags, the Nipmucks, and also the New France. Elsewhere, the Jesuits were in their dreary efforts of making a conversion to the nation of Huron. From the encounters of evaluation promulgated from these two races of religious encounters, it is passively implied that the European missionaries had a substantial colonial influence and expansion across the broad analysis of the European colony. This also led to an influential changes in the approach mechanism in which the Europeans through the French Jesuits as well as the English Puritans undertook to ignite religious influence in India. 1 Though the religious development triggered to the New England by the Europeans in the 17th century have largely been outspoken by many scholars, Bruce Trigger came in the 18th century to reshape the phenomenal dispensation as prototyped by many old scholars. This is from the new findings in the fundamental relationship between Jesuit-Huron in the Indians of the New England. Socio-economically, New England had its settlement based on primary societal independence and families who were middle farmers. They had an adherence to a radical state of nominal accreditation where their colonial autobiography was defined by the voluntaristic Puritanism to their conceptual purposes. Historically, the seventeenth century European missionaries are credited to the creation of the more Godly community for the American Indian in New England. This is exampled by the protestation by the militant European groups in the Europe which sensitized a harmonious state of living for the people with a call for one another’s Godly relationship and in pursuit of the nature laws. 1 However, the epochs of the people embracing Christianity was never a simple activity for the Indians who disagreed of the hefty Christianity exhortations by the European missionaries. However, their will to embracing Christianity would only be subject voted by the religious development into Christianity of such ordinary people within the Indians population in England. This culture was rigidly bound to the people and that 90% of the total population in Massachusetts were largely obliged to such exemplary life led by the ordinary settlers. However, from 1616-1619, Wampanoag Indians started providing radical changes to their religious autonomy to start giving into a greater depth of the Christianity philosophies and teachings brought by the Europeans. 2 The religious divine-ship of the American-Indians in the 17th century was credited to the worshipping of animals. However, the coming in of the European missionaries in the spread of Christianity was a benchmark in support for a revolution and the long held system of religious sacrifice by the people. The conception and religious importance held on animals as their gods also implies the benchmark and the stepping-stone for the start of King Philip War in the 17th century. To the American-Indians, animals were important source religious sanctity. Accordingly, the domestication of pigs and also cattle was a big historical malady in shaping the religious outcast and the believes of the Indians in the New England by the 17th century. The effect of these domesticated animals did not only provide change in environmental conception where the other animals were hunted and killed above been moved in the forests to provide a humble environment for the pigs and also cows to adequately graze. The religious conception of these people in New England before the Europeans intervention in the 17th century was defined in parametric measures of the domesticated animals. These animals brought exorbitant changes to the land and its resource environment. Elsewhere, they had a great religious impact where the people’s minds, hearts and also their behavior changed considerably with the effect of the broad array of the effect brought by animals. Animals had a long held spiritual endowment. They provided sanctification to the people when they consumed them. However, these were traditions whose effect was to readily be uprooted by the incoming of the Europeans. Â  The American-Indians in New England by 17th century had a description of Manitou for many animals such as foxes, deer, rabbits and the bears. New England had a great religious believe and adoration in which they described the nominal deities to even take the animal forms. They therefore had various adorns to various symbolic images by certain animals or even specific animal body part. Animals had a preferential significance of power and a brim of ornamental conception which netted the religious autonomy of the Indians in the New England in 17th century. In their folklores as well as Christian cosmologies, animals had a great figuration. For example, the Christ crucifixion blood was commemorated by the red breasts of the robin. Elsewhere, bad luck was signified by crows as well as black cats. Again, the disturbing portents to the death were implied by the ravens, owls and pigeons. A change in weather was fundamentally depicted by swallows, dogs and pigs. 3 The pre-emergence of the Europeans in New England therefore was a companionate imagery of a long implied perception which was in the nature proclaimed by animals. The regular interaction with the animals by the Americans Indians was therefore allied to developing fortunes of human expectations in the correspondence of the various behavioral conceptions that were in these animals. Due to the religious implication and relationship with animals by these people, they had a greater diversity of imminent relationship with the animals than on a divine being. This is perhaps the reason behind their short run rejection of the Christianity by the European missionaries in the 17th century. The emergence of these Europeans was preaching on the believe in a divine supernatural being who was only implied through mere religious believe and adoration. To them, a believe in such a being operating beyond the framework of the physical environment was only a mythological imagery and could not act to provide such a strong religious and godly foundation to what they had on animals. To the Europeans, a great transplantation of civilization echoed in New England. This was a formal compound of change in the speech formalities of the old word, religious and also politics. The nature of the New England is historically described as getting its fundamental shape from the influence of the old world shape by the Europeans. Through their implications, civilization and renaissance which was characterized by change in the religious, political and economic backgrounds was now changing to capture more coherent status of living in New England. The emergence of Europeans in the New England was a concise drive to reformation where the ties bound by the pilgrim colonial was now to be abandoned. This was the foremost trend which fostered great sigh of changing New England primitivism. It was the impact of the shaping tool of protestant revolution hinged to the old and native European revolters that entered the New England. 8 The fatal implications of the Europeans in the England were the revolutionary landmark of renaissance which saw various structures including religious and political autonomy. The surging Europeans in New England brought a great drive of religious awakening. They highly helped to break down the ties of the effect of colonization entrenched to many godly doctrines than a fundamental pursuit of economic autonomy. The so called the English Puritans were the injecting power in which the Indians got a favorable renaissance reshaping that even provided a better room for expansion into the broad old world’s system of identity. To the Europeans, waging spiritual life to the Indians in the New England was perhaps the most important go ahead step which was even to help see the state in a changing periphery. The intention of European missionary in New England was to transplant a divine worship system of Christianity which would capture various fundamental aspects such as praying, self studying as well as struggling against various remote evil inclinations to the society. The essence of evangelism to the American-Indians was to provide new grounds of spiritual conceptions on the God’s sovereignty in which it was seen as a tool for absconding the dogmatism fed to the traditional society of the medieval traditions. The essence of been a protestant was to move as per the codes of absolute standards and sovereignty as promulgated by the will of the God and not the dogmatic apprehension of false gods held by the Indians in worshipping animals. In a light spot, the religious awakening in believe of God among these people came into growth in the mid 1630’s. This was a revolution and renaissance adjudication which was perhaps rejuvenating the traditionalism and the religious backwardness operating within the societal structures of American Indians. Basically, the European Puritans had a lot of religious conceptions to pass over to the people. At the late 1930’s the New England old world’s conceptions were now changing with the people developing a mysterious imagery and preconception of the divine God. The people were developing an essence of humanity build on will of immanent God. There was a revolution adversity in believe of such a supernatural being which even led to changing structures of the societal imagery to incorporate to a greater depth a mysterious preoccupation and believe of a wonderful God. The teaching of the puritans about God was that He was compelled of love with a low preoccupation of vengeance as well as cruelty. The teachings by the European missionaries about God were standing to develop a fundamental strength. The American-Indians grasped the immanent sovereignty of such a God which gave them a special accord providence. The basic concept that would however draw them away from the will of such a divine God was the effects of sins which were the activities done by them and went against the will of this God. The emergence of Christianity in New England was however compounded by the influence of secular concerns. The people had precepts and contributions into farming home-building, governance, practicing folks as well as trading. With the new strength of absorbing a believe in God, humans contentment through Godly pleasure was now beginning to be a precious preoccupation amongst a diverse outlay of sources of pleasure. They turned to worshipping such vengeful God with deep characteristics of personal tenderness. With the changing believe and imageries on God, the people were starting to observe other structures such as economy and also state governance as facets proclaimed by the command and will of God. This engineered revolutionary autonomy in both civil as well as civil factors within the New England. Through this outlay, the Indians started to reshape their thinking about the conception on the God’s will for the state of governance and state leadership as shadowed to strong believers. From this new development in the societal conception, the inhabitants of Massachusetts Bay had the establishment of a theocratic site for Puritans which would even help to strengthening the spread and development of Christianity within the community at a faster status. This was the first trading corporation held in England and whose administration was only alleged to specific personalities proclaimed of having a strong hood of religious authority. However in 1645, political crisis developed to subdivide the New England into two. Those who proclaimed the foundation of Christianity and those who did not. However, in a speech by Winthrop in 1645, the state religious believe was liberal and capturing two outlooks; the natural conception which was the state of the old believe of the natural god and the federal which was personal liberty of exercise his/her religious imageries. The natural liberty provided one’s choice on either well or even evil. Through this believe, one was to continue growing evil. However, the federal was a preconception aimed at creating honesty and good. 5 Analytically, the European Puritanism had two impacts of development in New England. These were both orthodoxy as well as nonconformity. The orthodoxy implication had its development throughout the whole 17th century which was a controversial development on the state of reformation to protestant. The nonconformity concept was alleged to the influence of religious development to the impact of preventing conscience liberty to think and do as people’s wishes. Generally, the emergence of the European Puritans in the New England was a crucial preoccupation which provided a yard for change in the social structures in England. The philosophical dogmatism held in the modalities of state leadership and governance, religion, economic standard was now given an important boost through the changes in the people’s conception about the divine relationship with God. Various philosophical theories of statements such as absolutism were now eroded. Accordingly, the state of governance in the state was modeled from the changing perceptions prototyped from the states of religious autonomy from the people. The New England was in a state of revolution with a model for social revolutions and compactness driving the society before outdoing the prehistoric sediments which were compounded mythologies about the state of the cosmos and the universe. Through the new gazing fundamental conceptions, the people were now developing new formalities of society governance where the society would engage in the broad governance as opposed to the role of absolutist king who dwelt in the control of the society. The state of the society was now beginning to reshape in the manner with which social contracts were now beginning in the development from their status of natural state of liberty as well as the regulation by the civil society. Therefore, European missionaries can be described as providing an elaborate tool for revolution, renaissance and changing social status in which the old world mythological conception of the society was getting a reawakening to newer and a more development conscious stakeholder-ship. The government and development structures of the New England are absolutely rooted to what Europeans did for it

Monday, October 14, 2019

The Evidence For The Endosymbiotic Theory

The Evidence For The Endosymbiotic Theory Abstract Modern eukaryotic cells were originally believed to have arisen directly from a single prokaryotic ancestor through serial mutation and the process of genetic drift. However, much evidence has lead scientists to believe that eukaryotes are the result of a merger between a prokaryotic cell, a relative of modern ÃŽÂ ±-protebacteria, that became incorporated by a host archaeon. This is referred to as the endosymbiotic theory. Over the span of millions of years, symbiont DNA was transferred to the nucleus to give rise to the eukaryotic genome and the prokaryote gave rise to mitochondria. As such the two organisms effectively become a single organism, each unable to survive in the others absence. The endosymbiotic theory is widely regarded due to the many shared biochemical and morphological characteristics of mitochondria with bacteria, including DNA organization and similarities protein synthesising machinery and membrane composition. In reviewing these characteristics I have come to conclude that an endosymbiotic event is the most plausible explanation for the development of mitochondria within the eukaryotic cell, despite the uncertainties regarding the nature of the prokaryotes inclusion in the host cell. Introduction The term endosymbiosis refers to the event in which one organism takes up permanent residence within another, such that the two develop a mutually beneficial relationship1.The endosymbiotic theory was developed to explain the evolutionary discontinuity between the appearance of prokaryotes and eukaryotes, and the great many differences exhibited by the two taxa, described in Table.1. Since mitochondria share so many biochemical and structural characteristics with Bacteria, an evolutionary relationship was proposed, in order to explain the transition from prokaryote to eukaryote2. Contrary to the traditional view that a series of chance mutations were responsible for the evolution of eukaryotic cells, the endosymbiotic theory states that mitochondria arose by the incorporation of a free living aerobic prokaryote, relating to an ÃŽÂ ±-proteobacterium, into an anaerobic proto-eukaryote3. This is proposed to have occurred approximately 1.5 billion years ago, between the first fossil r ecord of aerobic prokaryotes and eukaryotes (Table 1), after oxygen had begun to accumulate in Earths atmosphere as a result of the emergence of photosynthetic organisms4 5. Rather than being digested, the prokaryote remained as a symbiont, helping in the production of ATP within the host by the process of oxidative phosphorylation, enabling it to survive the increasing oxygen concentrations, thereby giving it a selective advantage over anaerobic cells. Interdependence between the aerobic bacterium and the host cell developed and, the bacterium evolved into the mitochondrion. Photosynthetic eukaryotes originated in a similar manner by a secondary symbiosis between these organisms and photoautotrophic bacteria related to cyanobacteria. Wallin proposed in 1923 that mitochondria originated from an endosymbiotic event when he observed that they closely resembled bacteria in size and complexity7. These and related observations led Lynn Margulis to publish Symbiosis in Cell Evolution in 1981, in which she argued that modern eukaryotes were originally formed from a fusion of separate species. Margulis also proposed, more controversially, that motile prokaryotic species such as Spirochaeta were incorporated and resulted in the evolution of the structures that provide cellular motion. Since this hypothesis is generally not accepted, it is not discussed in further detail here. 1. Over the next thirty years, further similarities between mitochondria and bacteria were found that supported Margulis work. Table 1 described some of the similarities observed between prokaryotic cells and mitochondria when compared to eukaryotic cells. Included are the overall physiological similarities of mitochondria and prokaryotes, such as the similarity in size compared to eukaryotes, similarities between the protein-synthesising machinery such as the mitochondrial ribosomes and tRNA molecules, and the presence of a separate mitochondrial genome.3 8 Table.1 Summary of the similarities between prokaryotes and eukaryotes, and eukaryotic organelles. Adapted from: Indiana University-Purdue University Department of Biology (2004) Class Notes: The Endosymbiotic Theory Available: http://www.biology.iupui.edu/biocourses/n100/2k4endosymb.html [Accessed 16/04/10] Prokaryotes Eukaryotes Mitochondria of Eukaryotic cells DNA 1 single, circular chromosome Multiple linear chromosomes compartmentalized in a nucleus 1 single, circular chromosome Replication Binary Fission involving Fts proteins Mitosis Process akin to binary Fission involving dynamin proteins Ribosomes 30S and 50S Subunits 40S and 60S Subunits 30S and 50S Subunits Electron Transport Chain Found in the plasma membrane around cell Found only in the cells mitochondria Found in the plasma membrane around mitochondrion Size (approximate) ~1-10 ÃŽÂ ¼m ~50 500 ÃŽÂ ¼m ~1-10 ÃŽÂ ¼m First appearance in fossil record Anaerobic bacteria: ~3.8 Billion years ago Aerobic bacteria: ~2.5 Billion years ago ~1.5 billion years ago ~1.5 billion years ago What the endosymbiotic hypothesis does not make clear is the order of events regarding the formation of the nucleus and the acquisition of the prokaryotic cell containing the precursor mitochondrial genome. Two hypotheses have been put forward for the formation of the eukaryotic cell, illustrated in Fig.2. Nucleus formation preceded symbiosis of mitochondrion and chloroplast Nucleus formed after symbiosis of mitochondrion and before chloroplast Taken from Michael Madigan et al. Brock Biology of Microorganisms (2008) 12th edition, Pearson Education Inc The most widely regarded, summarised in Fig.3, proposes that an ancestral prokaryote first developed a membrane around its DNA from infolding of the plasma, similar to the way in which the endomembranous system of the endoplasmic rectilium and Golgi apparatus is thought to have arisen3. This organism, dubbed the protoeukaryote engulfed a small heterotrophic prokaryote, shown on Fig.2 as the ancestor of mitochondrion9. Pearson Education Inc. http://topicstock.pantip.com/wahkor/topicstock/2009/09/X8338687/X8338687-8.jpg The second hypothesis, in contrast, considers that there could have been a nucleus was formed after the acquisition of the protomitochondrion, when a member of the Archaea acquired the bacterial ancestor of the mitochondrion through endocytosis11. This is known as the hydrogen hypothesis, proposed by Martin and Muller (1998), who claimed that the symbiotic relationship between the two cells was initially based on the hosts dependence on the hydrogen, evolved by the symbiont as a by-product of anaerobic respiration, as a source of energy. The nucleus was formed from the mitochondrial DNA from the symbiont and the free DNA residing in the nucleus12. Both models thus involve the transfer of a large portion of mitochondrial DNA to the host nucleus, resulting in the dependence of the symbiont upon the host. An alternative hypothesis has recently been forwarded by Davidov and Jurkevitch, who propose that the ancestors of mitochondria were not endocytosed by Archaea but were predators that penetrated the host and devoured the host. The prey managed to survive and established a mutualistic relationship as in the previous hypotheses. (Davidov, Jurkevitch cited by Zimmer, 2009) This appears to be supported by the finding that certain species Rickettsia, obligate intracellular parasites, have more similar genomes to the than mitochondrion13 14. However the eukaryotic cell arose, abundant evidence has accumulated that supports the endosymbiotic theory, and the evidence of similarities relating to different functions of bacteria and mitochondria are reviewed in this essay. There is also an increasing body of experimental evidence that suggests that endosymbiotic events occur in modern cells, and two such experiments and their implications on the endosymbiotic theory are reviewed here. Aside from these experiments, the evidence presented in this essay relates entirely to the emergence of mitochondria. The Mitochondrial Genome Mitochondria possess their own genomes that replicate that replicate independently from the nucleus, using DNA polymerases specific to the mitochondria. These processes, as well as the subsequent DNA transcription and protein synthesis take place in the matrix of mitochondria and occur throughout the cell cycle, which parallels the situation in bacteria but is not true of nuclear DNA2. The DNA of mitochondria is a single circular molecule of roughly the same size as the bacterial genome, and has a mean GC content ranging from 20-50%. This is close to the variation found in bacterial species and greater than observed for eukaryotes, reflecting phylogenetic relationships of mitochondria and bacteria2. Furthermore, like bacterial DNA, the DNA of mitochondria lacks both intervening sequences and the organisation into histones present in bacteria3. Comparative molecular sequencing of mitochondrial genes and the RNA they encode has revealed that the mitochondrial genome is more closely rel ated to that of organisms such as the ÃŽÂ ±-proteobacterium Rickettsia prowazekii than to the rest of the eukaryotic cell, indicating an extracellular origin10 15. Similar sequencing by Ito and Braithewaite has revealed that yeast mitochondrial DNA polymerase I is homologous in amino acid sequence the DNA polymerases, of E. coli and Streptococcus pneumoniae in both the 3-5 exonuclease and DNA polymerase domains. The similarity of the DNa replication machinery further implies that mitochondria evolved from prokaryotes. While nuclear DNA is contributed by both parents in sexual organisms, mtDNA is contributed almost entirely by the oocyte16. The symbiotic concept accounts for this non-mendelian mode of inheritance and indicates the evolutionary importance of maintaining uniparental heredity of nonchromosomal genes, due to the inherent redundancy that results from the fusion of gametes, This ensure that at least one copy of the organellar genome is maintained at each stage in the eukaryotic cells life cycle3. DNA sequence analysis has also demonstrated the presence of mitochondrial DNA in the nucleus17. Biologists originally believed that the nuclear DNA of the eukaryote coded for mitochondria. However, Margulis reasoned that, if the endosymbiotic hypothesis represents the true course of events in the evolution of mitochondria, then upon entering a symbiotic partnership, the symbionts would lose all synthetic capabilities except the ability to replicate their own DNA. It has been shown that that the proteins that mediate function of the mitochondrion are encoded both in the mitochondrial and the nuclear genome and must be imported to the mitochondrion, shown in Fig.3 which supports Margulis hypothesis. Margulis Although many mitochondrial genes have been found in the nucleus, nuclear genes direct the synthesis of only some of the proteins from which they are made, thus cells which lack mitochondria cannot generate them1. This appears to be the result of extensive gene transfer that took p lace after the endosymbiotic event which brought the two cells together. The transfer of essential genes to the host nucleus resulted in the progressive loss of independence after the host acquired the symbiont, resulting in an organelle unable to survive in oxic conditions outside the host3. O Daley proposes that the large transfer of mitochondrial DNA may have been the result of evolutionary pressure to accumulate DNA inside the nucleus, due to increased genetic variation 17 18.The High rate transfer of DNA between the nucleus and mitochondria demonstrates that the incorporation of the mitochondrial genome into the eukaryotic cell was vital in defining the eukaryotic genome18. An external file that holds a picture, illustration, etc., usually as some form of binary object. The name of referred object is ch14f62.jpg. Fig 3: Transfer of nuclear precursor proteins from the nucleus to the mitochondrion and subsequent production of mitochondrial protein. Red arrows indicate the site of action of a specific inhibitor of either nuclear or mitochondrial protein synthesis, discussed in more detail later in of this essay. From Bruce Alberts, Dennis Bray, Julian Lewis, Martin Raff, Keith Roberts, and James D. Watson (1994) Molecular Biology of the Cell. 3rd edition, Garland Publishing Inc., New York. Lipid membranes Possibly the most convincing evidence of the extracellular origin of mitochondria is the similarity between the inner mitochondrial membrane and the membrane possessed by bacteria. Mitochondria are surrounded by two phospolipid membranes, and while the outer membrane resembles the eukaryotic membranes, including the membranes of other cellular organelles such as that of the nucleus and endoplasmic rectilium, the innermost membrane is chemically distinct to those found elsewhere in the eukaryotic cell6. Furthermore, Microscopic observation has enabled the comparison of cristae, invaginations of the inner mitochondrial membrane, shown in Fig.4, to bacterial mesosomes, shown in Fig.5. Both structures increase the surface area of their respective membranes and provide a site for the process of oxidative phosphorylation. Margulis has suggested that the similarity between mitochondrial cristae and the mesosomes possessed by many species of Bacteria (Fig. 5) also alludes to the extracellula r origin of mitochondria3. Consistent with the endosymbiotic theory, it has been reasoned that the inner membrane once belonged to the bacterial symbiont, and that the outer membrane was a remnant of the phagocytic vacuole in which the symbiont was engulfed by the host cell, resulting in the development of cristae from mesosomes9. Left: Fig.1: Structure of an idealised mitochondrion as compared to an electron micrograph. Illustrates the double membrane structure and the infoldings of the inner membrane known as cristae on which oxidative phosphorylation occurs. Adapted from: Dr Jay Pitocchelli, Saint Anslem College (2001) Lecture Notes for Cell Biology. Available: http://www.anselm.edu/homepage/ jpitocch/genbio/mitochondrion.JPG [accessed 27/04/10] Right: Fig. 5 : Electron micrograph of thin section of T.dentrificans showing inverted Y form of simple mesosome-like body. From: J W Greenawalt and T L Whiteside (Dec 1975). Mesosomes: membranous bacterial organelles. Bacteriological Review. 39(4): 405-463. The inner mitochondria and bacterial membranes also share many biochemical features. Table 2 illustrates the observations made by Parsons, that the outer mitochondrial membrane is more similar in density and lipid composition to that of the endoplasmic reticulum of Serratia than of the inner mitochondrial membrane3 19. It has also been noted that ÃŽÂ ²-barrel transmembrane proteins are exclusively found in the bacterial membranes and in the outer membrane of mitochondria, and that the amino acid sequences of these proteins show high similarity6. Additionally, LACTB, a protein that derives from bacterial penicillin-binding protein of peptidoglycan, has been found in the intermembrane space of eukaryotic mitochondria20. While mitochondria lack peptidoglycan, the presence of a vestigial peptidoglycan-forming protein provided further evidence that mitochondria are descended from bacteria. Table 2: Comparison of structural features and lipid composition of inner and outer Mitochondrial membranes and ER of Serratia. Adapted from D.F. Parsons (1867) Ultrastructural and molecular aspects of cell membranes. Proceeings of the Seventh Canadian Cancer Research Conference 7:193-246. The nature of the mitochondrial respiratory system raises another significant line of evidence supporting the endosymbiotic theory. The production of energy via the electron transport chain by mitochondria is associated only with the inner membrane, as in prokaryotes, and does not occur in the outer membrane, as evidenced by the difference in electron transport protein content in the mitochondrial membranes, shown in Table 29. Additionally, the membrane potential across the inner membrane that is necessary for the production of ATP is not found in the outer membrane of the mitochondrion or in eukaryotic membranes. Table 3 also demonstrates that that bacteria such as P. denitrificans and mitochondria share many respiratory features, such as the sensitivity of the oxidative chain to antimycin, which disrupts proton gradient formation across the membrane. Furthermore, the electron-transport chains of bacteria and mitochondria both contain a membrane-bound enzyme complex that accepts ele ctrons solely from ubiquinone-10 quinine carrier3. Taken together, this evidence supports the theory that the outer membrane of mitochondria was formed from the vesicular membrane during an endosymbiotic event and the inner membrane formed from the prokaryote engulfed2. Table 3: Mitochondrial features of Paracoccus denitrificans Illustrates the similarities of the respiratory system of mitochondria to the systems of Paracoccus , that are also found in many other bacteria. These strikingly similar respiratory features indicate that microbes such as P. denitrificans may be the ancestors of mitochondria. Many of these features are found in other bacteria. After Whateley (1977) Adapted from Lynn Margulis. Symbiosis in Cell Evolution (1981) W.H.Freeman Co Ltd. Respiratory Chain Succinate and NADH dehydrogenases Ubiquinone-10 is the sole quinine Cytochromes a and a3 act as oxidase Sensitive to low concentrations of antimycin Oxidative Phosphorylation Respiratory control is released by ADP or by uncouplers of oxidative phosphorylation ATPase has tightly bound nucleotise exchangeable on energization Membrane Phospholipids Phosphotidylcholine is the main constituent All fatty acids are straight-chain and monounsaturated Mitochondrial division The way in which mitochondria divide also provides evidence for their extracellular origin. It has been shown that these organelles multiply semi-autonomously, not through mitosis as eukaryotic cells are, but rather through a process similar to binary fission of pre-existing organelles21. Mitochondria been found to possess dynamin proteins, mechanochemical GTPases, that are related to the FtsZ, filamentous temperature sensitive, proteins found in bacteria. Bacterial FtsZ2 proteins interact to form a divisome ring complex that from a division furrow from outside, a similar mechanism has been observed by the Dnm1 protein of mitochondria, where the proteins constrict the membrane from the outside, illustrated in Fig. 6. Furthermore, evidence of FtsZ proteins have been found in the mitochondria of the alga Mallomonas splendens that are proteins closely related to those of ÃŽÂ ±-proteobacteria. The FtsZ protein is located in patches on the mitochondrial membrane, near the centre or at the ends of mitochondria, similar to the location of Dnm1. The similarities in the molecules involved in initiating bacterial and organelle division further emphasise the evolutionary ties that these organelles have to bacteria.9 22 23 Fig. 6: A model of the mechanism of mitochondrial division: Dynamins are targeted to their site of action by other proteins. After modification by GTP, Dynamins from rings that tighten around the site of division and constrict to cut the mitochondrion into two. This mecahism parrales that of FtsZ, the tubulin protein of bacteria. Adapted from: Suzanne Hoppins, Laura Lackner, and Jodi Nunnari (2007) The Machines that Divide and Fuse Mitochondria. Annual Review of Biochemistry Vol. 76: 751-780 Ribosomal Similarities The protein-synthesising machinery of mitochondria shares more similarities with bacteria than that of the eukaryote cytoplasm. For example, the initiating amino acid in the transcripts of bacteria and mitochondria is N-formylmethionine, whereas protein synthesis in the cytosol of eukaryotic cells begins with methionine. The structure of the mitochondrial ribosomes also differs from those found in the eukaryotic cytoplasm, in that they are more similar in size and share the same subunit structure, described in Table.1 3 9. The sequences of 16S ribosomal RNAs are closer to certain aerobic eubacteria than many other bacteria are, for example, Wolters and Erdmann have confirmed, by phylogenetic analyses, that the primary and secondary structure of 5S and 16S rRNA of angiosperm mitochondria share specific signatures with a particular type of purple bacteria, the rhodobacteria25. Conversely, mitochondria show no homologies in these traits with the eukaryotic cell cytoplasm3. These similar ities appear to confirm the phylogenetic relationship of these organisms and the organelles. Similarities between the ribosomes of bacteria and mitochondria are further evidenced by the action of a number of antibiotics that affect only bacterial, mitochondrion ribosomes protein-synthesising machinery. Fig. 3, above, demonstrates specific inhibitors of protein synthesis. These similarities the action of antibiotics between three types of ribosomes are illustrated in Table 4 3. For example, neomycin and streptomycin act by binding the 30S subunit of mitochondria and bacteria and inhibiting protein chain initiation, while chloramphenicol blocks the attachment of amino acid to tRNA9. None of these chemicals interfere with protein synthesis in the cytoplasm of the eukaryotes. Conversely, cyclohexamide and anisomycin affect only the protein synthetic machinery of eukaryotic cells, and have no inhibitory effects on mitochondria or on bacteria. Another example, rifampicin, inhibits the RNA polymerase of bacteria and mitochondria, but has no such effect on eukaryotic nuclear RNA pol ymerase. It is notable that each antibiotic, except for Puromycin, affects both mitochondrial and bacterial or cytoplasmic ribosomes, and this would appear to suggest a relationship between the protein synthesising machinery of mitochondria and that of prokaryotic bacteria from which they were thought to have originated3. Experimental Evidence Laboratory experiments have been conducted to confirm the establishment of endosymbioses in several organisms. Kwang Jeon of the University of Tennessee has demonstrated that, under laboratory conditions, it is possible to observe the establishment of a stable amoeba-bacteria symbiosis. After over 20 years of culture, a strain of Amoeba proteus became infected with a large number of bacteria. These became integrated as necessary cell components after initially being pathogenic to the host cells26. The amoebas dependence on the endosymbiotic bacteria was also demonstrated by removing the nucleus of an infected cell and placing it into another cell that had previously had its nucleus removed. Treatment with chloramphenicol also killed the majority of the endosymbiotic bacteria, which rendered the amoebae unable to survive. Thus, Jeon had proven that the host nucleus had become dependent on the symbionts 3, 27. Finally, Okamoto and Inouye have shown that some organisms can take opportunistic advantage of a similar process to endosymbiosis, by observation of a heterotrophic protist that engulfed a unicellular green alga and used the products of its photosynthesis. Inside the host cell, the alga underwent morphological changes, including the loss of flagella and cytoskeleton. The heterotrophic host switched its source of nutrition and became an autotroph, and became capable of phototaxis, the ability to move towards light. (Kimball, 2007) The acquisition of the alga by the protist and subsequent changes in both cells are believed to represent the early stages of a secondary endosymbiosis in process, and the conclusions of both experiments illustrate the possibility of secondary endosymbiosis occurring in modern cells in a similar way in which the symbionts from which mitochondria are descended were acquired28. Conclusion Based upon the large body of available evidence contributed by scientists in the years since the endosymbiotic hypothesis was first proposed, including the conclusions of various experiments and the sequence data of nucleic acids and proteins, I have concluded that modern eukaryotic cells arose by a stable incorporation of prokaryotic endosymbionts. This dramatic change was then the driving force behind the evolution of new species and eventually more complex organisms4. However, the question of which order eukaryotes came to possess nuclei and respiratory organelles is still the subject of much debate, and the fact that some genes remain encoded in the mitochondria rather than being completely transferred to the nucleus has not been accounted for16. Despite these uncertainties, the endosymbiotic theory remains the most probable explanation for the similarities between mitochondria and Bacteria, and the large disparity between Bacteria and eukaryotes. The next steps in the developmen t of this theory may require new methods of reconstructing events that occurred billions of years ago, in order to answer one of the greatest uncertainties in evolutionary biology, regarding the origin of the eukaryotes.

Sunday, October 13, 2019

1787: The Grand Convension by Clinton Rossiter :: essays research papers

The book I reviewed was 1787: The Grand Convention by Clinton Rossiter. In it he Breaks down before during and after the convention into four parts: The Setting, The Men, The Event, and The Consequences. In the Beginning Mr. Rossiter sets up for us a country that was going trough sever growing pains was without some serious help would not become the world power that it is today. The congressional form of common government that was formed during the Articles of Confederation, though not a failure, where not a success either. In order to finish what had begun with the revolution the great minds and characters of that time must band together and set aside the many differences they had in order to become one powerful government instead of a band of bickering siblings. Although Mr. Rossiter states that they did not come to Philadelphia because they all agreed they wanted to form a new structure for they government, they did feel that something had to be done or else the country that they fought so hard for to become free, would fail. Set up for the readers also were the wonderful and easy to understand breakup of all the men who were going to the convention. All of which were well-to-do men with businesses, prior political experience, and degrees from various University’s from all over the New World. As going over the names and descriptions of the Framers of the Constitution we are forced to agree with the author and others as well who say this group is the crà ¨me de la crà ¨me of the political business and military world like Washington, Hamilton, Madison, and Franklin. I must also admit though that those names were the only ones I had heard and recognized. What this book is good for it to fill in many of the spots that were missing in High School and Elementary school classes. The people who are only given 1 paragraph or a few sentences in to describe their personalities come to life in this book. For which we all must applaud Mr. Rossiter for being able to piece this pivotal moment in our history so well from notes and letters taken from the great men of this era. By far the most important part of this book was the description of the event itself that went on for many months from May 14th to September 17th.