Invasive Species - Causes and Effects free essay sample

From Giant Hogweed to feral cats Invasive species need to be stopped. Defining the Impact/Activity: Invasive species are species that have been introduced to an ecosystem that affect the habitats and bioregions they invade economically, ecologically, socially, and culturally in a negative manner. This paper will describe the intentional and non-intentional causes, ecological, social, cultural, and economic impacts, the solutions, and the ways to prevent invasive species. Causes- Unintentional: Many invasive species were introduced into other ecosystems when the industrial and human transportation industries took off. Many invasive species were introduced through trading, travel and tourism, transport, release of ballast waters from ships, escape from fish farms, openings of canals and waterways, use of live bait, escape from aquariums or water gardens, escape from live food fish trade, recreational boating and movement of equipment and gear, gardening, seed mixtures, escaped pets, and fire wood. Many present day invasive species were introduced through human imprudence and negligence, like the spiny water flea, big head, silver, and black carp, sea lamprey, round goby, fanwort, bass, pike, and zebra mussels. However, many introductions of invasive species were intentional. Causes- Intentional: Although most invasive species were unintentionally brought into an ecosystem, many were 100% intentional, granting the consequences were unknown. For example, the Giant Hogweed was introduced into Canada from Asia because it was considered decorative. However, Giant Hogweed has a watery sap that is like acid to human skin and if it gets into the eyes can cause permanent or temporary blindness. Other invasive species are the dandelion, purple loosestrife, and English ivy. Some species are introduced for ornamental properties, economic gain, cultural beliefs, improving environmental problems, making an area feel more like another, habitat restoration activities, authorized fish stocking, biological control of pests, and releasing pets that someone can’t or won’t look after. (Boa constrictors, feral cats, feral dogs) Impacts- Ecological: Invasive species have caused the extinction and endangerment of hundreds of native species; they cause irreversible changes to habitats, kill and crowd out other species through predation, parasitism, disease, and competition. They also alter ecological processes such as water, nutrient, and energy cycles. They can also breed with native species to cause hybrid species. They can bring new diseases that native species can’t fight. The effects are â€Å"immense, insidious, and usually irreversible. † (https://wwf. panda. org/about_our_earth/species/problems/invasive_species/) Impacts- Social: Along with dangers to the environment invasive species can be very disruptive of our social and recreational areas. Invasive species like the snakehead fish, boa constrictor, red fire ants, and the African Rock Python (a new snake found in the Florida everglades and expected to become invasive) all are potentially dangerous to humans. Aquatic invaders can make recreation like swimming and boating difficult, and sometimes camping, hiking, and biking can be made impossible by alien species. They can also invade in parks and public places and decrease public appeal. Impacts- Economical: Along with the social and Ecological impacts, it costs a lot of money in damages, preventions, and solutions relating to invasive species. The damages due to invasive species costs the world $1. 7 trillion every year, in the Great Lakes Zebra mussels cost $3-$7. 5 billion in damages every year, and cost forest and agriculture industries in Canada $7. 3 million, they also decrease property value and reduce the value of commercial and recreational fishing. Impacts- Cultural: An affect that is not widely recognized is cultural impacts. Many aboriginal tribes lose the medicinal plants and cultural materials needed in cultural practices. Many invasive species alter culturally significant sites and take away food sources, some native species vital to cultural practices are killed with non-target pesticide contamination. Solutions- Prevention: There is no simple solution to invasive species; one of the most common characteristics of invasive species is their fast growth, rapid reproduction, high dispersal ability, and high adaptability, this makes many invasive species very hard to eradicate. Because of this the main solution for invasive species is preventing their spread. One of the best ways to prevent the introduction of indigenous species is to be cautious of the pathways. For example, people should clean their boats thoroughly before moving it to different bodies of water. Dredging, dams, traps, electrical fields, mechanical barriers, trenching, and sticky bands are some other good ways to prevent there spread. Solutions: Because of many invasive species growth, reproduction, dispersal, and adaptability rates getting rid of them can be very difficult. Some methods people have used are; mechanical harvesting, hand-pulling plants, cutting and destroying infested material, poison, use of a living organisms, and pesticides. However, with many of these species leaving one pregnant female of one solitary plant can lead to a re-infestation. Removing invasive species is easier said then done. Conclusion: In conclusion, invasive species are a very negative affect on the biodiversity of our ecosystems and need to be exterminated.

Freakonomics “What Do School Teachers and Sumo Wrestlers Have in Common” free essay sample

Freakonomics: â€Å"What Do School Teachers and Sumo Wrestlers Have in Common† Daily Humans face the difficulty of choosing whats morally right, and morally wrong. Whether it be the simple everyday thank you and please or perhaps the wrong decision made under the carpet for personal gain, every action has a reaction. These choices seem simple when seen on paper, however the once simple decision becomes quite the opposite when an alternate motive poisons the minds of unsuspecting civilians. Freakonomics illustrates the harsh reality that once people are given a choice, no matter how wrong it may seem; when their neck is on the line, the majority of civilians will do what it takes to benefit themselves. Reffering to the rhetorical evidence of logos, Levitt and Dubner use examples from school systems to sumo wrestlers to explain to readers the motivation behind the so called cheating that plagues society. In â€Å"What Do School Teachers and Sumo Wrestlers Have in Common† Levitt and Dubner describes the situation for the teachers inside the Chicago Public Schools. We will write a custom essay sample on Freakonomics: â€Å"What Do School Teachers and Sumo Wrestlers Have in Common† or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page It just so happens that the year the teachers proved to be fraudulent â€Å"high stakes testing† implemented itself into the school system (22). With bonuses and jobs on the line are the teachers really to blame? If it is true everyone has a price then it must be true that the Chicago Public Schools hit the teacher’s price dead on. In turn the question must be asked: who cheats? â€Å"Anyone, if the stakes are right† (22). As rhetorical elements, these descriptions convince the audience that everyone has a price to do what’s proven as morally wrong. Overall Levitt and Dubner sufficiently paint a picture in the minds of readers why someone would go against morality to benefit themselves.

Global Trade and Financial Institutions

Defining the issue In 1999, something peculiar happened in Europe under the auspices of European Union. Some countries in Europe came together to set up new economic policy arrangements that will govern them economically.Advertising We will write a custom case study sample on Global Trade and Financial Institutions specifically for you for only $16.05 $11/page Learn More This was one of the most momentous occasions happening in Europe since the adoption of the common market protocol way back in 1957. Chief among the economic policy arrangements was the adoption of a single currency – the euro. Most European countries believed that by adopting this single currency, there would be a positive impact to not only the operations of European banks, but also currency traders (money exchange bureaus). Additionally, the adoption of the euro as a single currency meant to ease trade between countries in the region. The biggest question however is how the euro will manage to break into currency hegemony. There is no doubt that for over five decades now, the dollar has been the most dominant currency in global trade and financial institutions. In fact, its performance in international markets has always influenced the prices of commodities such as oil. This scenario has attracted a series of criticism from financial institutions and international traders. On international trade platforms, the criticisms of the dollar hegemony are getting louder and louder by the day. China has indeed led other countries opposed to the dollar hegemony by practicing quantitative easing, which in turn keeps eroding the legitimacy of the dollar as number-one global reserve currency. T he euro, most probably the second global reserve currency, has tried to break the U.S. dollar hegemony, but with little success.Advertising Looking for case study on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Thi s paper is a case study on whether the euro has succeeded in breaking the dominance of the dollar in global trade and financial institutions. The case study will discuss the impact of the euro as a single currency in Europe, and assess its influence in International Monetary System. The case study will also examine factors that led to the international acceptance of currency, vis-à  -vis the Euro (Chinn Jeffrey, 2005). Case study Before the introduction of the euro, the dollar accounted for 83% of world transactions. Following it closely was the Japanese Yen. Notably, this occurred even when statistics indicate that Europe control world trade at 17% compared to United States at 12%. Nonetheless, the fact that many European countries accepted the euro and opted to use it in trade is a boost of the euro. European countries also prefer to use the euro to trade because of the low transaction costs. (Chinn Jeffrey, 2005) The exchange rate market has been a speculative and free-floati ng nature one. From the graph above, we can see the variations of the dollar vs. euro exchange data.Advertising We will write a custom case study sample on Global Trade and Financial Institutions specifically for you for only $16.05 $11/page Learn More At the dawn of the 20th century, statistics from banks indicated that the dollar was the major reserve currency. In 2007, its share in exchange market was 65.7%, while that of the euro was 25.2%. However, since then the share of the dollar has been on decline with that of euro rising. Analyzing the case data (Chinn Jeffrey, 2005) Both the dollar and the euro enjoy monopoly in the exchange market. By the end of 2012, the dollar reserve share stood at 61.8%, while that of the euro stood at 24.1%. This means that the share of the dollar has decreased significantly. The exchange rate of the dollar to that of the euro at its introduction was 1.1795. It weakened further in the next two years to 0.895. However , as the world became acquainted with it, it rose gradually to 1.000 in 2002 and 1.637 in 2008. Today, a single dollar trades for 1.28 euro. Generating alternatives Marketing The call for the new reserve currency, as an alternative to the dollar is was good news. To realize this, the European Central Bank assumed the role of marketing the euro to all European countries and even outside the region. It also took over the responsibility of creating neutral monetary policies that will favor its exchange rates in the financial market on behalf of member countries. By enacting new policies, the banks expected international spillovers and colossal euro demand in international financial and exchange markets.Advertising Looking for case study on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More This is simply because the spillovers will definitely have an impact on exchange rates in addition to enhancing international policy coordination. We have seen international institutions such as the International Monetary Fund, the World Bank, G7, and OECD adopt the euro as one of the global currencies. However, although the euro is a global currency, it has not broken the dollar hegemony completely. This is simply because in the oil market, traders prefer to use a dollar rather than the euro. Nonetheless, the euro is common especially in the purchase of other goods not only in the European Union, but in the rest of the world as well. Internalization of the euro In considering which of the two exhibits more influence, we assess the internalization of both the dollar and euro in global foreign exchange markets and various international securities markets. For example, the dominance of the euro in European markets has managed to reduce the dominance of the dollar. In other words, the economic size of the region, the continued liberalization and amalgamation of financial markets are some of the reasons that make the euro perfume better than the dollar in European financial and exchange markets. International creditors also have confidence on euro monetary policies. However, United States does not believe that this is matter of great concern, as it believes it will take a long period for a new currency or any otherworld currency to supplant the dollar. Although the dollar is still the primary reserve currency, there is likelihood that the euro can emerge stronger and take the number-one position. Monetary unification in Europe, United States inflation, and the collapse of the Bretton Woods exchange rate regime, undoubtedly, are some of the opportunities that can strengthen the euro to dominate in world markets. Establishment of euro reserve account Many analysts point out that currency hegemony is a political war that has massive economic benefits. This is the rea son why European countries came together and adopted the euro as a single currency. The amalgamation of European countries to create a geopolitical and financial power base has also pushed international currency system (Kenen, 1995). Selecting decision criteria Here, we analyze the best criteria that will establish the dollar hegemony. Euro as a single agency Usually, in international economy, there are a myriad of factors that significant role in establishing currency hegemony. First, the adoption of the euro as a single currency by many European countries led to its internalization, and this made it strong. Secondly, the players should market the currency internationally in order to make it dominant. Currency wars do not have supranational authority such that traders and financial institutions have no option other than to use the currency. It all depends on the market dominance, economies of scale, and other factors, for example, externalities, ambiguities and asymmetries in the u se of currencies. Analyzing and evaluating alternatives In order to break the dollar hegemony in global trade, the European Monetary Union must consider some alternatives. Use of the euro in oil trade In 2002, something peculiar happened, perhaps boosting the euro to become an important player in foreign exchange markets and international financial institutions. Countries such as China, Russia, and Canada opted for the euro instead of dollars in their reserve banks. Additionally, many countries have also joined the union raising oil purchase from OPEC countries to over 50 percent. Currently, many European countries prefer to use the euro in foreign exchange markets rather than the dollar. However, the euro has not managed to rival the dollar in the oil market segment, as many traders prefer dollars. The reason is that most of the OPEC oil reserves are in dollars and it has not been easy to replace them with the euro. Additionally, if other oil importing countries also opt for the eu ro instead of the dollar, then the euro will advance towards hegemony. Irrefutably, the oil market determines the global dominant currency. Therefore, for the euro to be a competitor to the dollar, and perhaps outdo it, global traders and financial institutions must replace the dollar reserves with euro reserves. By doing so, the dollar will plummet, and a myriad of asset markets will offload excess dollars. On the other hand, this will help millions of poor Americans purchase homes due to the deflation of the property market. Furthermore, this will streamline the United States stock markets and make them more profitable. In other words, the devaluation of the dollar will on the other hand lead to the appreciation of the euro. This is the only way that the euro will dominate global trade. However, as it stands now, the dollar is the most dominant world currency (Kenen, 2002). Empowering the European Monetary Union (EMU) Exclusive invoicing of the euro will strengthen the euro in fin ancial and exchange markets. This means that countries trading with European countries will suffer reduced economies of scale if they do not use the euro. In some instances, one-off arithmetic impact will increase the value of dollar depended trade, and many traders would switch to the euro. Additionally, given the turbulent foreign exchange markets, where the dollar exhibits high volatility against other currencies, many traders have resorted to the euro for bilateral trade. Consequently, this has enhanced chances of the euro outdoing the dollar as an international unit of account (Reinhart Rogoff, 2002). Selecting the preferred alternative Increasing euro reserve share The best alternative of making the euro strong is by increasing the reserve share for oil trade. Many analysts agree that the adoption of a single currency can be a cutting-edge to investment, especially in the oil market. That is why the pricing of oil in dollars established the dollar hegemony, which has stood fo r over five decades now. However, allowing a second currency into the oil market will not only increase the reserve currency, but also avoid the monopoly experienced in the market currently. Statistics indicate that Euro Zone commands a bigger junk of world trade in comparison to United States. In reality, these statistics show that European countries import more oil compared to that imported by United States. Unlike United States, which has vast foreign debt in addition to its trade deficit, Euro Zone offers interests to its oil trading partners in Middle East. Virtually, the European Central Bank has done much to tighten and seal budget deficits in order to boost the purchasing power of the euro. Action/ implementation plan Phrase oil currency plan There is no doubt that the oil market is the one separating the dominance of the dollar in global trade from that of the euro. Therefore, in order to rival this dominance, the Economic Monetary Union should create a plan—the phra se oil currency plan. This plan proposes increase of euro reserve in the oil market. Since its introduction, the euro has had an influence especially in the Euro Zone, and it stands the biggest rival of the dollar. The euro has done well in exchange markets so far. This plan proposes to increase euro reserve to over 50% so that it can equal that of the dollar. By doing so, traders will find it necessary to use the euro for oil trade. In the political arena, the rivalry between United States and countries from the Middle East has had a negative impact on the dollar. This is good news to the euro and for the plan. For instance, OPEC countries such as Iran have openly defied the dollar and instead opted for the euro. In fact, in 2002, out of anger, the Iran government changed it currency reserves into euros, thus, favoring the euro. This has indeed boosted the chances of the euro becoming number-one global currency. Venezuela is also another OPEC that rejects the use of dollars in the oil trade. In fact, in 2000, in a summit of OPEC member states, Venezuela proposed a computerized trade system that will allow countries to trade their commodities without using any currency. Iraq also followed suit by writing to the United Nations to allow it trade it oil products in euros. It also managed to change its currency reserves into euros. Syria has also been exchanging its oil commodities and other products for euro. In other words, by converting dollar reserves into the euro, the euro will become stronger (Mundell, 1998). Conclusion Although the euro has not fully become the number-one global currency, it has managed to rival the dollar in foreign exchange markets and international financial institutions. Within the Euro Zone, the euro is the common currency for exchange. However, the recent Euro Zone crisis posed yet another challenge of making the euro stronger in exchange markets than the dollar. Nevertheless, as time goes by, and many countries change their dollar r eserves into euro, perhaps the euro will become the number-one position global currency by 2020. Reference List Chinn, M. Jeffrey, F. (2005). Will the Euro Eventually Surpass the Dollar? Paper presented at the NBER Conference, G7 Current Account Imbalances: Sustainability and Adjustment. Cambridge, Massachusetts. Cohen, B. J. (1997). The political economy of currency regions.  New York: Columbia University Press. Kenen, P. (1995). Economic and Monetary Union in Europe: Moving Beyond Maastricht. Cambridge: Cambridge University Press. Kenen, P. (2002). The Euro versus the Dollar: Will There Be a Struggle for Dominance.  Journal of Policy Modeling, 24, 347–354. Mundell, R. A. (1998). What the Euro Means for the Dollar and the International Monetary System. Atlantic Economic Journal, 26(3), 227–237. Reinhart, C. M. Rogoff K. (2002). The Modern History of Exchange Rate  Arrangements: A Reinterpretation. Cambridge, Massachusetts: National Bureau of Economic Research. This case study on Global Trade and Financial Institutions was written and submitted by user Fernanda R. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Sample Definition Essay - Common Mistakes to Avoid

Sample Definition Essay - Common Mistakes to AvoidAs an English major I have read a lot of sample definition essays, which appeared on papers, testing and entrance exams. A lot of these samples contain the common mistake that I have noticed in a lot of sample essays. These common mistakes are attributed to English majors, who do not realize the importance of grammar, punctuation and syntax when writing an essay.I am going to discuss a few of the most common mistakes in sample definitions that I have seen. I have seen a lot of errors in the last year. The things that are common in these samples are spelling, incorrect punctuation, wrong punctuation and grammar. These mistakes will certainly ruin your opportunity to apply for an English degree, but what can you do about it?Most of the time, we do not realize the importance of grammar in a research paper, so this is a common mistake made by a lot of English majors. Grammar rules a research paper, the points in a thesis or dissertation, and even essays.Writing an essay, which includes any forms of argument will include most of the common mistakes made by students. When you do not get all the points across correctly, you will not be able to understand the ideas of other students, and this may cause you to lose points to other students.All essays will include spelling, proper grammar and correct punctuation. Even if you use an English spelling program, you still have to look for all these words while writing an essay.If you want to impress your classmates, you have to understand the concepts of terminology, hyphenation, subclause, sentences, points, clause, sentence construction, adjectives, adverbs, etc. Reading and writing an essay is quite similar to reading and writing vocabulary.Writing an essay is a very difficult task. Make sure that you start with a great beginning, so that you can learn all the mistakes in the process.

Interface by which a module Essay Example

Interface by which a module Essay Example Interface by which a module Essay Interface by which a module Essay To provide interface by which a module can communicate with its environment what its environment what can be used. A) modules B) ports C) variables D) none 5. In Overlong, constants defined in a module by the keyword A) Constant B) Parameter C) Cons D) None How many logic values defined in Overlong with their strengths A) One B) Two C) Three D) Four w 7. Which of the following represents Reduction operator NOR 8. If the input to a tranquil bidirectional switch is supply, then the output signal strength is [ A) weak B) strong C) weak 1 D) strongly 9. Trigger nets can have B)O, 1, z only values 10. Go, 1, x only D)O, 1 only It is legal to connect internal and external items of different Intermeddle port connections. A) Sizes B) Variables C) Constants con 2 Fill in the blanks 11. When making In Overlong, with respect to gate delays, which delay is the minimum of all delays 12. Process of converting a high-level description of design into an optimized gate level representation is called Delay associated with a gate output transition to a O from another value is called 14. To represent physical connection between structural elements be used. 15. Implicit continuous assignment of delay can be used in 16. Sequential blocks in behavioral modeling are specified with Keywords. 17. Data type can modeling. Delay associated with a gate output transition to a 1 from other value is called delay. 18. Is used to verify design in real-life environment with real system software running on system 19. Delay associated with a gate output transition to the high impedance value (Z) from other value is called 20

Contemporary Issues in World Politics Essay Example | Topics and Well Written Essays - 6000 words

Contemporary Issues in World Politics - Essay Example IR focuses on the relations between the various states of the world and how their interaction and relationship are handled by the countries themselves and international organizations from the diplomatic and military perspective. Thus, when a state carries out its international relations with other states, in line with the IR theory of Realism it will mainly focus on its own interests and benefits, and very minimally from the perspective of other countries and even international perspective, and carry out actions accordingly. When the focus is on Realism, Thucydides, Machiavelli and Hobbes are regarded as the founding fathers of this Realism theory, however the Twentieth-century Realism and the scientifically enriched and associated Neorealism is focused, it had its beginnings mainly during the Cold War. That is, Realism as a theory came into prominence particularly during the Cold War years, because both United States and Soviet Union carried out aggressive and at the same time defen sive activities in various fields from Military, space, foreign relations, etc, etc, mainly to protect their self-interests. Although, there was focus on international interests, which prevented nuclear catastrophe, even that decision of not to use nuclear weapons were based on self-interests. Both the countries threatened to use nuclear arsenal particularly during the Cuban crisis, they stepped down their aggressive postures, when their self-interests are catered or fulfilled. In the current times, there is no such an intense rivalry between countries, but still states act in a self-centric manner. The states will mainly prioritizes their national interests as well as territorial security, even over other forms of national functioning including their history, ideology, moral considerations, etc., as well as international concerns like world peace. With this motive, the states will act both in an offensive as well as in a defensive manner against other territories or nations to upho ld these aspects. That is, they could go into a ‘game’ of one-upmanship with their opponent states, indulge in exchange of harsh words, carry out war games, initiate small-scale intrusion or even wars, etc. The states will always do this mainly with a self-centric perspective, and thereby dominate other states or territories. States in the international system maximally remain in the constant state of antagonism with few countries or maximum countries. Even politically and militarily ‘insignificant’ states will have some form of antagonism or rivalry with some countries in their neighbourhood. These countries will have general distrust and that will focus them to orient their international relations with those countries in a self-centric manner. This is happening even in the environment of strong overseeing International Organizations (IOs). Although, IOs are developed and supported by states to foster cooperation, goodwill and peace among the nations, each state had or still having various personal motivations or self-interests to support IOs and importantly act through them. IOs started evolving after the formation of sovereign state system, and as states only form and operate IOs, states have major stakes in them. States act through IOs in the matters of international relations, and for other social and economic purposes. When they do that, they will first focus on their

Strategic Management College Case Study Example | Topics and Well Written Essays - 500 words

Strategic Management College - Case Study Example Ryanair uses online booking and ticketing system to lower brokerage fees and ticketing costs, thereby redefining its relationship to its customer markets. They follow differential pricing depending upon availability and demand, they operate on short-haul routes or airports which have competitive cost terms, but these cost-saving techniques do not really add value to the service to the customer. They have reduced services like not allotting seats and provide no frills to the services. They concentrate on outbound logistics, attempting to reduce the turnaround times by opting for secondary airports. This results in fewer terminal delays and more competitive airport access and handling costs. Faster turnaround results in maximizing aircraft utilization but ultimately these are merely cost reduction techniques. They have outsourced the non-core areas like partial maintenance and ground handling activities. Ryanair has been concentrating on process and service but not on its people and ma ximizing utility of technology. Ryanai faces several challenges in its strategy to push down costs. They have not been concentrating on enhancing business communications which reflects in their poor employee and volatile customer relations.