Prehistoric Life During the Cambrian Period

Prehistoric Life During the Cambrian Period Before the Cambrian period, 542 million years ago, life on earth consisted of single-celled bacteria, algae, and only a handful of multicellular animalsbut after the Cambrian, multi-celled vertebrate and invertebrate animals dominated the worlds oceans. The Cambrian was the first period of the Paleozoic Era (542-250 million years ago), followed by the Ordovician, Silurian, Devonian, Carboniferous and Permian periods; all of these periods, as well as the succeeding Mesozoic and Cenozoic Eras, were dominated by the vertebrates that first evolved during the Cambrian. The Climate and Geography of the Cambrian Period Not a lot is known about the global climate during the Cambrian period, but the unusually high levels of carbon dioxide in the atmosphere (about 15 times those of the present day) imply that the average temperature may have exceeded 120 degrees Fahrenheit, even near the poles. Eighty-five percent of the earth was covered with water (compared to 70 percent today), most of that area being taken up by the huge Panthalassic and Iapetus oceans; the average temperature of these vast seas may have been in the range of 100 to 110 degrees Fahrenheit. By the end of the Cambrian, 488 million years ago, the bulk of the planets land mass was locked up in the southern continent of Gondwana, which had only recently broken off from the even bigger Pannotia of the preceding Proterozoic Era. Marine Life During the Cambrian Period Invertebrates. The major evolutionary event of the Cambrian period was the Cambrian Explosion, a rapid burst of innovation in the body plans of invertebrate organisms. (Rapid in this context means over the course of tens of millions of years, not literally overnight!) For whatever reason, the Cambrian witnessed the appearance of some truly bizarre creatures, including the five-eyed Opabinia, the spiky Hallucigenia, and the three-foot-long Anomalocaris, which was almost certainly the largest animal ever to appear on earth up to that time. Most of these arthropods left no living descendants, which has fueled speculation about what life in succeeding geologic epochs might have looked like if, say, the alien-looking Wiwaxia was an evolutionary success. As striking as they were, though, these invertebrates were far from the only multicellular life forms in the earths oceans. The Cambrian period marked the worldwide spread of the earliest plankton, as well as trilobites, worms, tiny mollusks, and small, shelled protozoans. In fact, the abundance of these organisms is what made the lifestyle of Anomalocaris and its ilk possible; in the way of food chains throughout history, these larger invertebrates spent all their time feasting on the smaller invertebrates in their immediate vicinity. Vertebrates. You wouldnt have known it to visit the earths oceans 500 million years ago, but vertebrates, and not invertebrates, were destined to become the dominant animals on the planet, at least in terms of body mass and intelligence. The Cambrian period marked the appearance of the earliest identified proto-vertebrate organisms, including Pikaia (which possessed a flexible notochord rather than a true backbone) and the slightly more advanced Myllokunmingia and Haikouichthys. For all intents and purposes, these three genera count as the very first prehistoric fish, though theres still a chance that earlier candidates may be discovered dating from the late Proterozoic Era. Plant Life During the Cambrian Period There is still some controversy about whether any true plants existed as far back as the Cambrian period. If they did, they consisted of microscopic algae and lichens (which dont tend to fossilize well). We do know that macroscopic plants like seaweeds had yet to evolve during the Cambrian period, giving their noticeable absence in the fossil record. Next: the Ordovician Period

Tips on Writing a Good Marketing Research Paper

Tips on Writing a Good Marketing Research Paper Tips on Writing a Good Marketing Research Paper Those students who have chosen marketing as their profiling subject will – sooner or later – need to compose the research paper devoted to this area of knowledge. And if their skills and already gained experience allows some of them to do it on the decent level, there still are some students who find it extremely complicated to cope with the writing with the success. The present article will give the latter category of students several tips and guidelines to make the process of marketing research paper writing a bit more enjoyable and easy. First of all, a student will need to select the topic to be writing the paper about. For this purpose, it is very desirable to consult the scientific advisor. He/she, as the person with the many-years’ experience would help the student with the flow of their further investigation. As it is quite clear, the topic needs to be acute and crucial, since there is hardly a need to describe the out-of-date topic and research something which has been already described in tons of scientific materials. So, the topic is the base for the future diligent investigation. Once a student is done with selecting the topic, he/she needs to care of its proper opening to the readers. The outlining process in the best practice in this regard. No matter, which topic you have chosen, the accurate drafting and outlining of every chapter will help you with writing. Ensure to have the reasonable amount of time for researching on the topic, getting acquainted with the existing points on view on the chosen topic and select the reliable and credible sources of the well-known authors to cite or analyze in the future marketing research paper. One more tip will consider the professional help of writers which is to be easily found online. The numerous custom paper writing services are so popular in the web today, so students are welcome to make use of the professional assistance by addressing these agencies or companies. The staff of such online organizations will eagerly help the student in need with any marketing topic. There are thousands of helpful techniques for the process of marketing research paper composing. No matter which ones you apply, the result will not be long in coming. If you work hard to make the research paper an interesting and in-depth investigation, then you have the high chances to succeed. And if anything goes not as you’d like it to, then the assistance given by proficient writers online will make the positive change. You may address the professional writers any time and hope for the helpful guidelines in terms of the best Marketing research paper writing.

Letter of Motivation for Master of Laws in Advanced Studies in Public Essay

Letter of Motivation for Master of Laws in Advanced Studies in Public International Law - Essay Example Throughout my student career, and also in my working life, the particular focus on global politics and the consequent legal frameworks supporting international systems have sharpened in my mind. I am at present completing a Master’s program in Global Politics and International Relations at Bahà §eÅŸehir University in Istanbul (begun in 2007) and am currently employed as a Research Assistant at Okan University Faculty of Law in the department of Public International Law. Previous to this I achieved the Master of European Union Law at Istanbul University, where I studied from 2006 to 2009, after completion of my under-graduate courses at the Marmara University Faculty of Law (2000-2005). Evident from both my thesis topics within the courses mentioned above, and my employment history, is the committed interest I have in International Law. For the LLM Program at the Istanbul University Faculty of Law, I submitted the thesis The German Practice within the Scope of the EU Counter-Terrorism Policies; my current thesis topic is titled Migration and Citizenship in Turkey. I have also sought out work, short-course, and seminar opportunities related to my field of interest. I was a trainee at the Center for Eurasian Strategic Studies in 2007. I also worked in organizational and co-ordination capacities at the NATO Summit in Istanbul (2004); the World News Agencies Summit (2003); and the ECO Heads of State Summit Meeting in 2002. Additionally, I have attended seminars on topics as diverse as the Enlargement Process of the European Union and Turkey, The Effects of Globalization on the Law – the Role of the WTO, and Violence against Women and Sexual Crimes during the last few years. As a student, too, I was involved in this area – as President of the European Law Students’ Association (2003-2004) and as Vice-President of Seminars and Conferences for ELSA Istanbul (2002). I was also awarded the DAAD Scholarship to enter the â€Å"Program for International

Healthcare organization Essay Example | Topics and Well Written Essays - 500 words - 1

Healthcare organization - Essay Example direction that exists between governance and management as well as seeking to integrate an appreciation with the reader for why both of these are required within the healthcare organization. Firstly, with respect to governance, the reader can and should understand this as â€Å"the strategic task of setting the organization’s goals, direction, limitations, and accountability frameworks† (Prencipe & Bar-Yosef 199). In this way, the reader/researcher can readily integrate with the understanding that such a function of leadership is necessary in order to constrain and elaborate upon the rules of the game with which all of the other shareholders must integrate. Rather than providing an active form of participatory leadership, the role of governance is more intended to lay the underlying framework for how shareholders should integrate with one another, with the patient, and with the provision of healthcare within the system. It is also worth noting that just because governance can be defined in such a way does not make it anything similar to an infallible process; rather, it is just as fallible as management might be. Conversely, management can of course be defined as â€Å"the allocation of resources and overseeing the day to day activities and operations of the organization† (Prencipe & Bar-Yosef 199). In such a way, the reader can understand that although less of a macro approach than governance, management is the means by which governance and the issues that it portends for the shareholders must be engaged. Moreover, the reader and/or researcher can understand the management as opposed to governance is the path by which the â€Å"what† and â€Å"how† of the governance directives are able to ultimately be integrated with the prospective shareholders in the process. As one can expect from the fact that the governance structure was one that presented the macro view, the management process is one that offers a much more integrated and personal approach to

A guide for the works of the prophets Essay Example for Free

A guide for the works of the prophets Essay The prophet Amos is listed in Scripture as one of the twelve minor prophetical messengers (James Gray, 2007). Among the other minor prophets were the prophets Joel, Hosea, Obadiah, Jonah, Nahum, Micah, Zephaniah, Haggai, Zechariah and Malachi (Torah). In the fourth chapter of the Book of Amos, verses 1-6, the prophet delivers a message of destruction that will come from God (Christ Notes, 2008). The first few verses of the Book described the character of Gods instrument, a shepherd from the southern kingdom of Israel (Gray, 2007). Prophets are mainly messengers of the Lord, as they are entrusted to deliver a message from the Lord (David Noel Freedman, 2008). God delivers his message to the prophets in visiosn or by means of dreams (Freedman, 2008). But in the exceptional cases such as Moses, God spoke to him â€Å"face-to-face† (Freedman, 2008). God calls the prophets to carry out the delivery of His message, or a â€Å"commission† (Freedman, 2008). God initiates the call of the messenger, usually with dreams or visions or a supernatural event, as in the cases of Isaiah and Ezekiel (Freedman, 2008). The messages of the minor prophets that they delivered in Gods Name were basically one in nature, and that was God will bring the nations to account for their conduct (Torah). Amos message was focused on the Ten Tribes of Israel (Torah). The Israelites were reveling in their new found wealth, with an insatiable desire for more (Christ Notes, 2008). This can be deduced upon reading the Eighth chapter of Amos, verses 4-6 (Christ Notes, 2008). Amos message of the inevitable destruction and captivity upon the people of Israel, went largely unnoticed (Got Questions, 2008). References Christ Notes. (2008). Amos- King James version. Retrieved August 13, 2008, from http://www. christnotes. org/bible. php? q=Amos+8ver=kjv Freedman, D. (2008). Biblical prophets. Retrieved August 13, 2008, from http://www. lightplanet. com/mormons/basic/bible/prophets_eom. htm Got Questions. (n. d. ). Book of Amos. Retrieved August 13, 2008, from http://www. gotquestions. org/Book-of-Amos. html Gray, J. M. (2007). Book of Amos. Retrieved August 13, 2008, from http://mb-soft. com/believe/txs/amos. htm Torah. (n. d. ). The twelve prophets. Retreived August 13, 2008, from http://www. torah. org/learning/basics/primer/torah/12minor. html#amos

The Diana Phenomenon Essay -- essays research papers fc

The Diana Phenomenon The sudden death of Diana Princess of Wales at the end of August 1997 sparked off a massive display of emotion in the world, especially in Britain. The event provided the opportunity for the expression of what appeared to be a short-term and superficial, but undoubtedly sincere, manner by a large number of people. â€Å"An emotion felt throughout the countryside was that many people saw themselves in some way connected to this public figure and able to grieve for her as if she were an acquaintance.† (Lambert 54) However, there remained clear borderlines between what the public, who thought they knew her, and the immediate family who did. The Princess’s funeral brought together a gathering of the powerful (English royalty) and the beautiful (Hollywood’s finest), and the poor. More than a million mourners crowded the streets of London to toss flowers upon her casket. Even as it was happening before their eyes, no one could believe it was real. In the days and weeks that followed her death, everyone was trying to figure out what she had meant and why the world was responding to her death with such grief. Was it her flaws, her failures, her struggles with her weight and her self-esteem, and her refusal to be inhibited by them? Was it her good works and the way she touched the common people, the handicapped, drug addicts, and lepers. Could it have been the way she broke away from her failing marriage and reinvented herself as a single mother but still the â€Å"Queen...

Healthcare in Netherlands vs. U.S. Essay

Completing this assignment will require anywhere from 60-80 minutes. It will count as two response papers. This documentary is a case study in policy making. It helps us to learn about the mechanisms of making laws at the national level for high profile policies in America. In particular, this case focuses our attention on the role of powerful and wealthy interest groups in Washington, and how they can easily influence government and sway laws to their benefit. It also helps us to lean about who has power over and in government, who is represented, who has voice, influence, and who doesn’t. Please, watch â€Å"Obama’s Deal: PBS Documentary Exposing Corruption and the Role of Big Money and Powerful Lobby in American Policy Making Process† You may start filling out the questionnaire while you are watching the documentary. Simply copy these 14 questions into your response paper and answer them in the order of appearance. 1. What immediate problem did the president run into when initiating the healthcare reform? 2. Obama’s administration believed that taking on a healthcare reform is a test of what in American politics? According to Obama, it was intended to prove what? 3. Who opposed the healthcare reform under both Clinton and Obama? Who stood to lose from the healthcare reform? 4. What did the propaganda ads funded by insurance lobby advertise to the American public about the healthcare reform? Whose interests did they keep in mind when doing that? 5. Who could get to the congressional hearings on the healthcare reform? Was there anyone representing 50 million uninsured Americans at the congressional hearings? 6. While powerful insurance lobbyists initially stated that they would support the reform, what did they request in return and why? (hint: they wanted some feature added to the bill, what is that feature?) 7. Senator Baucus received $2.5 millions from insurance interest groups to do what? Whose interests did he represent? 8. Who is denied a seat at the negotiation table about the healthcare? Who is removed physically by guards from the press conference in the White House? 9. When in Congress senator Baucus introduced â€Å"Medicare prescription drug bill†, it was a payoff to drug  and pharmaceutical industries for what? Who did the bill benefit (financially)c? 10. Insurance lobbyists (Ignani being one big player) spend tens of millions of dollars to defeat the health bill through ads that created panic, scare, rumors, and etc. Why? What is at stake for insurance and pharmaceutical lobbyists if a meaningful healthcare reform took place? 11. The answer to this question would require some speculation on your part: why do you think many Americans bought the negative campaign ads against the healthcare reform that were manufactured by the insurance lobby? Why did some ordinary Americans end up siding with greedy insurance and pharmaceutical lobbyists, even though saving money and health of working Americans is the last thing that those lobbyists cared about? 12. What does this documentary show us about the role of money and powerful interests in American politics? For whose benefits laws are made or blocked? Based on this case study, what would you say about who controls American political process? 13. What have you learned from this documentary that either reinforces or contradicts information from the textbook chapter 11 about interest groups? 14. Anything else you wish to state about your reaction to this case study in policy making: Background and further readings on healthcare policy in the U.S.: Healthcare is one of the most contentious policy areas in American politics. Some of the most conspicuous issues with healthcare provision in our country are: -medical bills are the leading cause of bankruptcy for middle class and low income households in America -Insurance premiums and co pays are too high and limits for patients with preexisting conditions are numerous; insurance industry is fairly unregulated and has monopoly on setting the rules of the game on who and how they cover. -50 million Americans remain uninsured, with elderly, students/young, and workers in low paid or part time jobs that offer no health insurance benefits most affected. We do not have a public health option that would offer a choice aside from private care, just like we have public education/universal education for any American who does not wish to spend tons on private education -while we have such programs as Medicare (for the elderly), Medicaid (for low income families), and emergency rooms, they do not cover all those who need medical care; states became strict with qualifications for such programs, cutting funding and  eliminating many Americans from qualifying. Emergency rooms, if you have been to one, do not offer quality care, preventative treatment, and many other essential services. Insurance does not cover pre-existing conditions; insurance plans have limits and co-pays that many people simply cannot afford once faced with a serious illness. -Healthcare is too expensive and inaccessible to many -What reforms are needed to address such disparities in healthcare? And more importantly, in our political system what reforms can or cannot be made? This documentary provides one way to think through the structure of policy making process in America. Supplementary/suggested readings: Start with understanding facts, numbers, and myths about Obama’s Affordable Care Act: http://www.whitehouse.gov/healthreform Margaret Flowers: Obamacare did not go far enough, we still need universal health coverage for Americans: http://www.thenation.com/video/168604/margaret-flowers-obamacare-doesnt-go-far-enough# Number of uninsured Americans rises to 50.7 million: http://usatoday30.usatoday.com/news/nation/2010-09-17-uninsured17_st_n.htm Census data on health coverage in America: http://www.census.gov/hhes/www/hlthins/data/incpovhlth/2010/highlights.html Republicans who benefit from Obama’s healthcare bill are torn about the candidates: http://www.cnn.com/2012/10/06/health/republicans-conflicted-obamacare/ Listing some benefits for women under Obama’s healthcare bill, particular for potential cancer patients: http://www.democraticunderground.com/10021447151 Three myths about Obama’s Affordable Care Act: http://www.youtube.com/watch?feature=player_embedded&v=Noq_tktemE0 Republican presidential candidate Romney on healthcare: http://www.nytimes.com/2012/10/05/opinion/krugman-romneys-sick-joke.html?smid=fb-share&_r=0 Public opinion about Obama’s healthcare bill: healthcare is complex in terms of public opinion–while a majority favored it’s repeal, large majorities actually favored each aspect of the law. Moreover, with the Supreme Court’s upholding the law, this seems to have made it more popular (but made the Court less so): http://themonkeycage.org/blog/2012/10/03/the-effect-of-the-courts-ruling-in-the-aca/ http://themonkeycage.org/blog/2012/06/27/framing-and-health-care-reform/ http://www.politico.com/news/stories/0811/62242.html Paul Ryan’s (runs as vice-president on the Republican ticket in 2012 election) plans to undercut social security and Medicare infuriate the elderly, he dismisses concerns with contempt and removal of a senior citizens from the hall: http://www.upworthy.com/paul-ryans-medicare-plan-will-hurt-old-people-paul-ryans-security-guys-have-hurt?g=2 Healthcare debate in cross-cultural perspective: Canada vs. U.S. http://www.diemer.ca/Docs/Diemer-TenHealthCareMyths.htm Healthcare in Netherlands vs. U.S.: http://www.nytimes.com/2009/05/03/magazine/03european-t.html?pagewanted=all