Marketing Management Essay Example | Topics and Well Written Essays - 1250 words - 1

Marketing Management - Essay Example Main line of Marriott Marriott International Inc. operates and franchises hotels and lodging facilities worldwide (Marriott-a, 2010). Mr. Marriott has built a culture which is highly regarded and the company recognizes the value that they bring on to the organization. At present around 300,000 people are serving guests under the brand name Marriott and franchised properties throughout the world. Mr. Marriott shifted the company’s business model from hotel ownership to franchising and property management. This allowed the company to accelerate growth and broaden his leadership. This brought up the Marriott International, a hotel management and a franchising company. The company is a leading lodging company with around 3,000 lodging properties in USA and 67 other countries (Marriott, 2011). Marriott International has almost 2300 franchised hotels. The company has won many awards with relation to franchise because of the contribution made to the International Franchise Associatio n. Some of the awards include, 2006 Ronald E. Harrison Award by the IFA, Entrepreneurs of the year in 1984 to name a few (IFA, 2010). Presence of Marriott International JW Marriott Mexico City, Mexico: Marriott International has presence in Mexico with its 5-star hotel offering luxurious and modern accommodation for leisure as well as business travelers. It is located in Polanco district which has a historical importance (Marriott International Inc-b, 2011). Marriott India: In India, Marriott provides state-of-the-art meeting facilities, recreation facilities and personalized getaways in thirteen different cities (Marriott International Inc-c, 2011). China Hotel, a 5-Star Marriott Hotel: Marriott has presence in Guangzhou city of China from which it is connected to Export-Import Fair complex, airport and stations (Marriott International Inc-d, 2011). Marriott Argentina: Marriott International started its operations in Buenos Aires as Marriott Plaza hotel in 1909 and has hosted a num ber of high profile people such as Charles de Gaulle, Theodore Roosevelt, Indira Gandhi etc (Marriott International Inc-e, 2011). Marketing mix Marketing mix is a unique blend of product, price, promotions, offerings and distribution which are designed to meet the needs and demands of the consumers (McDaniel & Gates, 1998, p.3). As the demand of the market changes, the marketing mix also needs to be revised. The company should follow to have a right product at the right price, in the right place and at the right time. In addition to four Ps there is other three other secondary components which is concerned with the service industry. Thus as the project is based upon service industry, therefore the marketing mix would deal with 7 Ps. They are Product Price Place Promotion People Physical evidence and Process (Stone, 2001, p.54). Product The core product of Marriott is the hotel rooms that they provide to its customers. The company has different kinds of brands such as Marriott hotels and resorts, Renaissance hotels, JW Marriott hotels and reports, Autographs collection to name a few (Marriott, 2011). The reason which made Marriott a strong brand is because the company has one concept but they make the concept work differently for different people thus, attracting huge amount of customers. Place Marriott has been operating in many countries in about 68 countries and territories. Countries include USA,

An IT security consultant Essay Example | Topics and Well Written Essays - 750 words

An IT security consultant - Essay Example This paper will explain four methodologies and how they can be used to protect an organization’s system from being vulnerable. Firewall A firewall is the first in line of a network’s defense mechanisms, which can either be a software application or hardware device. It keeps unauthorized people from accessing the organization’s network by blocking selected outbound or inbound traffic (Vacca 2009). Depending on the implemented type, the firewall allows the network administrator to determine the traffic to be let out or in of the network, and also restricted to specific domain names or IP addresses. There are four firewall mechanisms including application gateway, proxy server, circuit level gateway and packet filtering gateway. With the packet filter, traffic flow into or out of the network is intercepted and evaluated against the rules given by the administrator. Filtering is based on the criteria that the packet filter is able to access the destination and source ports, as well as their IP addresses (Christey 2007). The circuit level gateway bars all inward traffic to any other host, with the exclusion of itself. The client machines within the organization and the circuit level gateway establish connectivity via software run on the clients’ machines. ... The application gateway is a type of proxy server. After internal clients connect to it, it determines whether or not to establish the connection, then connects to the destination machine. All communications are routed from the client to the application gateway, then application gateway to destination machine. Since the gateway is the address viewed by the outside world, the internal network is kept safe. Encryption Encryption is the process of converting information in a way that cannot be understood by unauthorized people (Ardi, Byers & Shahmehri 2006). The information is converted into an unreadable form called ciphertext, and decryption is required to convert it back into its initial for by the recipient. During encryption, the information is encoded into ciphertext using encryption algorithms. An encryption key determines the way the information is encoded. Encryption schemes require algorithms for key-generation in order to produce keys randomly. By use of a decryption algorith m that needs the correct secret decryption key, the authorized party can decode the ciphertext. Key algorithms undo the encryption algorithms’ work. Encryption protects data both in transit and at rest (Zittrain 2008). Data in transit comprises that being transferred across networks like mobile phones or the internet. Data at rest includes files stored on storage devices and computers. Encryption makes it difficult to intercept data on transit, while securing that which cannot be physically kept from being accessed by unauthorized persons. In the case of data at rest, it remains safe in incidents of laptop and back up devices theft. The safest practice is to apply encryption at the time of

European Union as an international organization Essay Example for Free

European Union as an international organization Essay The European Union cannot be an international organization and it is not a domestic political system. It is a new and unique trend in governance, which transcends the nation – state structure. In the EU the nation – state governments are drifting away from both sub national and supranational systems. This in turn raises questions about the EU’s capacity to govern and its democratic legitimacy. The European Union is composed of democratic nations that aim to achieve peace and prosperity. It is not a nation – state but an international organization with unique features (Europeans united in diversity). However, the events that took place in the period from 1960 to 1970 changed the thinking of federalism by the people. The then French president, Charles de Gaulle was very much interested in nation – state structure in the Europe. However, he rejected the federalist system. Subsequently, the European Council was created in order to take up the matters of the Union with administrative powers. Thus there is no centralized power in the European Union and it was distributed between the primary entities, which do not fall within parliamentary control (Europeans united in diversity). The significant characteristic of the EU is that the decisions taken at the European level are ratified by its Member States in order to establish EU level common institutions, by surrendering their sovereignty on certain specific issues. There is unity in diversity in Europe where there persists a multitude of different traditions and languages. Respecting these shared values, the EU promotes cooperation among the people of Europe and it protects the interests of the individual citizens of Europe. While respecting the sentiments of European citizens, the EU promotes cooperation with external nations without comprising its solidarity and in a spirit of tolerance (Europeans united in diversity). The European Union is a distinct entity. It is not a federation like the United States. Moreover, it is not a simple form of structure as it entails inter – governmental coordination and cooperation. The European Union is composed of a number of Member States. These Member States have combined their individual sovereignty and adopted a system of shared governance, in order to achieve unity and international importance. Nevertheless, as it is noteworthy to mention, these Member States did not relinquish their national sovereignty (McCormick). Further, there is a delegation of powers by the agencies of the European Union, in areas of joint interests, upon which the EU can impose its democratic authority for the benefit of Member States. Thus the European Union is to some extent an intergovernmental organization and to some extent it is a supranational organization. The supranational aspects of the EU include economic policy, social policy, immigration policy and education. The intergovernmental aspects comprises of mutual cooperation between the member states in order to formulate a common foreign policy and security policy (McCormick). The intergovernmental organizations like the United Nations are in general constituted by several states in order to promote voluntary cooperation and coordination amongst them (McCormick). The Member States of such an organization retain their independence and the decisions and agreements taken are not enforceable. The Member States of the European Union do not surrender their sovereignty to it. However, in the supranational organization, Member States are required to surrender their sovereignty in certain key areas to the governing body of the supranational organization (McCormick). Moreover, the Member States are also required to comply with the decisions taken at the supranational level. The Courts would initiate penal actions for violations by the member states. The European Union has both the characteristics of an intergovernmental organization and supranational government. An international organization is an entity which develops voluntary cooperation and coordination among its members (McCormick). Hence the European Union cannot be a truly typical international organization. The normal features and definition of an international organization is narrow in its scope. Therefore, the European Union cannot be compared to an ordinary international organization. The European Union is founded by an international treaty like any other international organization. However, it cannot be construed to be a proper international organization and a very close description is that it is not a state, nor a nation – state; but a characterization of sui generis (Vuorinen). The fundamental characteristic that differentiates the European Union from other international organizations is that it attempts to change the Member States. Integration is the process that brings about the coalescing of state structures. The European Union has several structures combined together some of these structures represent the characteristics of a federal state while other structures resemble an international organization. In the process of evolution, the EU had gone beyond an association of states and became an economic and political union. However, the EU is not a federal state (Vuorinen). The emergence of the European Community was the result of federalist views. Its drafters were of the opinion that federalism would be the solution to the persistent problem of war in Europe. Thus their main objective was to establish a federal state. These efforts resulted in the formulation of the European Coal and Steel Community in the year 1951, which created a common market for the coal and steel industries of that period. The objective of this institution was to combine the important and strategic resources of Europe. Subsequently in 1957 The Treaty of Rome established the European Economic Community or EEC and the European Atomic Energy Commission or Euratom (Vuorinen). The federalist creation of the Union was based upon the three important pillars of the EU, namely, the European Commission, the European Parliament and the European Court of Justice. These branches of the EU, which do not pertain to any single member state of the Union, aim to promote the common European policy. The federal structure could have operated with a sufficient degree of democracy (Vuorinen). The European Union has been described as an international organization and with the adoption of a constitution it can become a supranational organization in addition to an intergovernmental organization. The Maastricht Treaty of the year 1993 established two types of institutionalized cooperation in the European Community, the Common Foreign and Security Policy or CFSP and cooperation on justice and international issues. Since, the extant system in respect of functioning of the EU involves the surrender of sovereignty by states to the EU in certain areas and the dependence of the member states on intergovernmental cooperation in other areas, it can be describes as a hybrid system (European Union). Issues of international interests of the EU are regulated by the Integration Ministry; some of these issues encompass the cooperation of EU, Nordic legislation and cooperation with the United Nation’s agencies. Extension of such cooperation is frequent to the United Nations Refugee Agency or the UNHCR, the Council of Europe, Intergovernmental Consultations or IGC and the International Organization for Migration or the IOM (The Ministry of Refugee, Immigration and Integration Affairs). Furthermore, the Ministry negotiates with many foreign nations on issues relating to repatriation agreements, other forms of practical cooperation as well as mutual exchange of information. The International Division of the Integration Ministry governs international cooperation and participates in meeting and makes the necessary preparations for meetings and discussions that involve other nations. This Division also prepares meetings in Denmark with regard to issues relating to asylum and immigration. It also makes the necessary preparations for EU casework in national procedure (The Ministry of Refugee, Immigration and Integration Affairs). The destruction and loss of a large number of human lives in the Second World War resulted in European integration, which was expected to put a stop to such killing and destruction. In the year 1950, Robert Schuman, the French Foreign Minister proposed the idea of European integration. The present European Union consists of five institutions with specific goals. These are the European Parliament, which is elected by the citizens of the Member States; the Council of the European Union, which represents the governments of the Member States; the European Commission, which is the executive branch of the EU; the European Court of Justice, which ensures compliance with the EU law by the Member States and the Court of Auditors, which controls and ensures efficient and legal management of the EU budget (The European Union). There are other important agencies, which support these five driving forces of the European Union. They are, the European Economic and Social Committee, which reflects the opinions of the civil society on issues pertaining to economic and social interests; the Committee of the Regions, which is responsible for monetary policies and regulates the euro; the European Ombudsman, which deals with the complaints of individuals in case of breach of law or failure of proper administration by any EU institution or agency and the European Investment Bank, which promotes the objectives of the EU by providing financial support to investment projects. In addition, there are several other institutions to facilitate the smooth functioning of the EU (The European Union). The functionality of the EU is based on the Treaties, which were ratified by the Member States. In the beginning there were only six nations in the EU and these were Belgium, Germany, France, Italy, Luxembourg and the Netherlands. In 1973 Denmark, Ireland and the United Kingdom became members of the European Union and subsequently, in 1981 Greece became a member. In the year 1986 Spain and Portugal and in the year 1995 Austria, Finland and Sweden joined the European Union. In the year 2004 the largest expansion of the European Union took place with ten new countries being permitted to become members of the European Union (The European Union). In the beginning, much attention was bestowed on providing cooperation in the areas of trade and economy. Subsequently, the EU became the guardian of the Member States and commenced to deal with a wide range of issues pertaining to all aspects of society and humans. The EU protects the rights of individuals, ensures freedom, security and justice, employment, regional development and environmental protection. For more than fifty years the EU has been catering to the needs of its member states in respect of stability, peace and prosperity. It strived hard to enhance the standard of living of its citizens. It created a single European market, launched the euro or the single European currency and fortified the European Union’s stance on the international platform (The European Union). The European Union plays an important role in the field of international trade. It provides advantageous norms for trade to a large number of developing countries. The EU withdraws the preferential business terms from a country that violates these norms, while dealing with any member state of the EU. Moreover, the EU is the largest single donor of humanitarian and development aid in the world. The financial aid supplied by the EU and its member states comprises sixty percent of the total aid to the world. The EU also provides assistance for reconstructing nations ravaged by war and its aid projects are significant in promoting peace among warring nations and in settling disputes. The foreign assistance programs of the EU are remarkable in respect of the benefits offered to refugees of war and famine. Economic integration in the EU has become a role model for many upcoming trade blocs, which have consequently, sought the support of the EU in their financial reforms. Thus, the EU is an economic giant and a superpower. As a matter of fact, the EU influences the economic activities and policies of most nations of the world and plays a key role in the global economy and occupies the first rank in this area (The Rationale for Studying the Outcomes of European Foreign Policy Activity). In the international arena the EU had evolved as a superpower from its very inception. It underwent considerable modifications and later on it expanded itself by establishing common institutions and foreign policy requirements. In 1958, the Rome Treaty founded the European Community and established a legal pedestal on which the EU forged ahead to influence international trade activities, foreign aid programs and diplomatic terms with countries that were not its members. In 1970, the European Political Cooperation was established to facilitate governments to initiate dialogue and promote mutual cooperation with respect to foreign policy matters. In 1987, the Single European Act was developed. In 1993, the EU was institutionalized by the Treaty. The EU is supported by three pillars, the first is the European Community, the second is the New Common Foreign and Security Policy and the third pillar is comprised of by the policies with regard to anticrime and police cooperation (The Rationale for Studying the Outcomes of European Foreign Policy Activity). In 1998, the Treaty of Amsterdam had modified the Treaty of European Union. It brought about High Representation for the Common Foreign and Security Policy. The European Security and Defense Identity was supplanted by the European Security and Defense Policy in 1999. This change facilitated the EU to establish a rapid deployment force to maintain peace in the region. The Common Foreign and Security Policy is a set of objectives, procedures and devices formulated to encourage sophisticated joint actions and positions in foreign policy. The CFSP also formed the link between joint actions and civilian foreign policy of the EC. These developments transformed the EU into an international organization in the areas of commerce, trade, aid and diplomatic relations. Moreover, the European Foreign Policy addresses civilian actions, policies, relations, commitments and choices of the EU in international politics (The Rationale for Studying the Outcomes of European Foreign Policy Activity). The nature of the EFP controls the competence of the organs of the EU, so as to influence matters pertaining to international politics. As an international actor the EU enjoys a special status in international politics. However, there is still some doubt regarding the nature of the EU because it has no polity and because it is not a state or a territory with fixed borders. There are an array of tests that measure the end results of the foreign policy and decision – making power of the EU. However the scope of the CFSP was not utilized to the fullest extent by the EU. The end results achieved through this instrument clearly establish the prominence and effective role of the EU as an international actor in international politics (The Rationale for Studying the Outcomes of European Foreign Policy Activity).

East of Eden Essay: Steinbeck vs. Christ :: East Eden Essays

East of Eden: Steinbeck vs. Christ In the novel, East of Eden, John Steinbeck proposes the idea that man has much more control over his own destiny than many chose to believe-a conclusion reached from Steinbeck's own interpretation of the story of Cain and Able wherein God neither instructs Cain to master the sin which is crouching at his door, nor predicts that Cain will master it, but rather gives Cain the ability to choose. Taking the text out of context, Steinbeck uses it to convey the message that a man's destiny is up to himself and that the ability to choose to do what is right and wrong is as much a curse as it is a blessing. Steinbeck's interpretation is incorrect. By taking the clause thou mayest out of its context, Steinbeck twists the truth of free will and uses it to convey his own message: that a man, through his own free will, can shape and define his destiny. By reading the text in context-both the story of Cain and Able and the story of Christ, which is the accepted Christian message of the Bible as a whole-the message that thou mayest conveys is quite different in both meaning and gravity. The very context of the phrase tells its immediate meaning: "If you do what is right, will you not be accepted? But if you do not do what is right, sin is crouching at your door; it desires to have you, but [thou mayest] master it." In context, the phrase thou mayest is more than the blank check that Steinbeck makes it out to be; rather, it is a warning and an instruction. God gives Cain the warning that if he chooses not to do rightly, sin will conquer him; and at the same time, He offers hope and tells Cain he can and, in context, should choose to master that sin. The Biblical context of the story goes further, applying itself to life in general. As the whole of the Bible unfolds, the concept of free will is realized on a far greater magnitude than Steinbeck applies it. All humanity is subject to the harassment of a sinful nature and a fallen world. "There is no one righteous, not even one; there is no one who understands, no one who seeks God." Therefore, instead of the uninfluenced freedom to choose his

Consequentialist Versus Deontological Ethical Systems

What is â€Å"good†? How does a person decide what is good? Over the course of history, various thinkers have tried to develop systems which guide human thought on this question. Some of the most important ethical theories are the â€Å"normative† theories — that is ethical theories which try to establish authoritative standards by which conduct can be judged. Under the general heading of â€Å"normative,† two of the most important schools of ethical thought are the â€Å"consequentialist† and the â€Å"deontological schools of ethical thought. (â€Å"Normative Ethics† n. d. )Consequentialism is the school of thought which asserts that the morality of a given action is to be judged by the consequence of that action. If the consequences are good, the action is good. Consequentialism is generally divided into a number of theories, including: utilitarianism and ethical egoism. Utilitarianism holds that the right action is one that produces the greatest good/pleasure (and least pain) for the greatest number of people. Utilitarianism has its root in the seminal figures of Jeremy Bentham, John Stuart Mill, and Henry Sidgwick.Classic utilitarians developed a system which is could best be described as â€Å"hedonistic act consequentialism. † Their system was â€Å"consequentialist† in that its proponents claimed that an act is morally right if the act causes the greatest good. To calculate this, one had to compare the total amount of good that the act caused, minus the total amount of bad that the act caused. If the net total net amount of good was greater than this net amount of good for any other act that the agent might have performed, then the act was good.Their system was â€Å"hedonistic,† in that they claimed that pleasure was the only true â€Å"good† and pain is the only true â€Å"bad. † This system was summed up in the common statement, â€Å"the greatest happiness for the greates t number. † (Kemerling, 2002; Hollinger, 2002, p. 31-34: â€Å"Normative Ethics,† n. d. ; Lee, 2000, â€Å"Utilitarianism†; Sinnott-Armstrong, 2006) As Mill articulated this system, utilitarianism was consequentialist rather than deontological because included certain key points of denial. Utilitarianism denied that the moral rightness of any act depended on anything other than the consequences of the act.This left the utilitarian system open to attack because of the hedonism it advanced. (Hollinger, 2002, p. 34-36; â€Å"Normative Ethics,† n. d. ; Kemerling, 2002; Lee, 2000, â€Å"Utilitarianism†; Sinnott-Armstrong, 2006) From the beginning, critics of hedonism attacked utilitarianism. They criticized John Stuart Mill as trying to degrade the value of human life to an animalistic level. One of the more commonly used arguments was that vulgar acts, such as orgiastic sex might produce greater transient pleasure than some disciplined higher act such a s studying fine poetry. (Hollinger, 2002, pp.34-36: â€Å"Normative Ethics,† n. d. ; Kemerling, 2002; Sinnott-Armstrong, 2006)Mill tried to respond to these charges by setting up a distinction between lower and higher qualities of pleasure. (Mill, 1861, 56) This did not satisfy Mill’s critics, who contended that in the end, utilitarianism supported hedonism. Critics find these systems overly technical and confusing, and utilitarianism fosters an â€Å"end justifies the means† line of reasoning. Further utilitarianism does not accept the notion that some acts are absolutely ethically wrong, so that potentially it can be warped into a system justifying any means.Hollinger, 2002, pp. 34-36; â€Å"Normative Ethics,† n. d. ; Kemerling, 2002; Lee, 2000, â€Å"Utilitarianism†) Egoism is the view that a moral person is a self-interested person. The primary exponents of ethical egoism, include Epicurus, Adam Smith, and Ayn Rand. Critics charges that the eth ical system of Epicurus leads to an austere hedonism. Adam Smith’s â€Å"invisible hand† would cause the most productive state of an economy to be reached by allowing all of the people in the economic unit each to pursue his own self-interest.Ayn Rand professed a view of rational self-interest, saying that altruism was irrational. (Hollinger, 2002, pp. 28-31; â€Å"Normative Ethics,† 2002; Sinnott-Armstrong, 2006) Deontological ethical theory takes its name from the Greek root â€Å"deon,† meaning â€Å"that which is obligatory. † It is ethical theory based on a concept of duty or obligation. Turning then to principled ethical systems, stem from Socrates, who felt himself duty bound to accept the ruling of the court in Athens, which had ordered him put to death.From Socrates, one can move ahead to Immanuel Kant, whose philosophical system led to his system of the â€Å"categorical imperative†: â€Å"Act so that you treat humanity, whether i n your own person or in that of another, always as an end, and never as a means only. † To develop his â€Å"Categorical Imperative,† Kant looked to the roots of morality in humanity's rational capacity and meticulously developed a system based on moral absolutes. He argued that these are inviolable duties, rules which must be followed absolutely and in every possible situation. (â€Å"Normative Ethics,† n. d. ; Hollinger, 2002, pp.37-39)Another school of deontological thought is the contractarianistic school exemplified by John Rawls or Thomas Hobbes. This theory asserts that moral acts are those act that all people would agree to if they were completely unbiased. (â€Å"Normative Ethics. † n. d. ) Finally, there are philosophers such as John Locke, also considered deontological, who presented the idea that all men are endowed with certain inalienable rights. (â€Å"Normative Ethics. † n. d. ) Immanuel Kant (1724-1804) set forth what is generally a ccepted as the most advanced theory of deontological or duty-based ethics.Contrary to the consequentialism of Mill, Kant’s theory judges morality by examining the nature of actions and the will of agents rather than the goals sought or the ends achieved. To describe this in general terms, this deontological theory focuses on the inputs leading to actions rather than outcomes produced by those inputs. This does not mean that Kant did not care what the outcomes of his actions were. Like other men, he wished that things would go well. But Kant insisted that as far as the moral evaluation of our actions was concerned, consequences did not matter.  (Hollinger, 2002, pp. 37-39; â€Å"Normative Ethics,† n. d. ; Kemerling, 2002)In his philosophical studies, Kant tried to establish a rational principle that would stand as a categorical imperative for ethical judgments. He insisted that the imperative, or duty, had to be categorical, not merely hypothetical, or conditional, be cause true morality could not depend on such things as individual likes and dislikes, abilities, or opportunities. These were mere the â€Å"accidents† of history, and an ultimate principle of ethics had to go far beyond such incidentals.Eventually, Kant developed his categorical imperative, which he articulated in several different versions, including: Always act in such a way that you can also will that the maxim of your action should become a universal law. and Act so that you treat humanity, both in your own person and in that of another, always as an end and never merely as a means. The first version of the categorical imperative emphasizes an idea important to Kant’s thinking of the idea that any rule was valid only if it could be applied universally. The second statement of the rule stresses the importance of respecting persons as more important than things.(Kay, 1997)Deontological ethical theories are strongest in the areas where utilitarian theories face the g reatest difficulty. Ethical rules based on duty have the great advantage that the ends can never justify the means. For example, suppose a ruler wished to revive the Roman practice of public crucifixion of criminals. Even if it was determined that the general populace was so caught up in a blood lust that the pleasure of the masses who would watch the agonies of the condemned far, far out-weighed the suffering of the victim, the categorical imperative demands that individual human rights be acknowledged and held inviolable.No matter how much the public wants this spectacle, it must be dismissed from our moral deliberations. (Hollinger, 2002, pp. 38-39: Kay, 1997) Putting Kant’s categorical imperative into practice, however, has presented a number of serious problems. First, the categorical imperative gives only absolute results. Actions are â€Å"good† or â€Å"bad. † There is no room for â€Å"gray areas. † For example, lying is always wrong — eve n the â€Å"polite lie† or the lie told for noble reasons. Second, duties often come into conflict, and the categorical imperative gives no means to resolve these conflicts.Utilitarianism permits a ready comparison of all actions, and if a set of alternatives have the same expected utility, they are equally good. Conflicting duties, however, may require that I perform logically or physically incompatible actions, and my failure to do any one is itself a moral wrong. (Hollinger, 2002, p. 39: Kay, 2002) Because neither theory is satisfactory in its pure form, I am compelled to use a blend in real life. I follow a utilitarian approach in the sense of trying to maximize the good that I bring to people, but with an awareness that there are categorical situations beyond which I will not go.

Reaction Definition in Chemistry

A reaction or chemical reaction is a chemical change which forms new substances.  In other words, reactants react to form products that have a different chemical formula. Indications a reaction has occurred include temperature change, color change, bubble formation, and/or precipitate formation. Chemical Reactions Take Different Forms The major types of chemical reaction are: Synthesis or Direct Combination Reaction - Reactants form a more complex product.Decomposition or Analysis Reaction - A reactant breaks into two or more smaller products.Single Displacement or Replacement Reaction - Also called a substitution reaction, this occurs when the ion from one reactant changes place with another.Double Displacement or Replacement Reaction - Also called a metathesis reaction, this occurs when both cations and anions of the reactants trade places to form products. While some reactions involve a change in the state of matter (e.g., liquid to gas phase), a phase change is not necessarily an indicator of a reaction. For example, melting ice into water is not a chemical reaction because the reactant is chemically identical to the product. Reaction Example: The chemical reaction H 2(g)  ½ O 2(g) → H 2O(l) describes the formation of water from its elements.

9 Different Minerals Used as Abrasives

Abrasives today are largely precision-manufactured substances, but natural mineral abrasives are often still used. A good abrasive mineral is not just hard, but  also tough and sharp. It must be plentiful -- or at least widespread -- and pure. Not many minerals share all these attributes,  so the list of abrasive minerals is short but interesting.   Sanding Abrasives   Sanding was originally done with (surprise!) sand -- fine-grained quartz. Quartz sand is hard enough for woodworking (Mohs hardness 7), but its not very tough or sharp. The virtue of sand sandpaper is its cheapness. Fine woodworkers do occasionally use flint sandpaper or glass paper.  Flint, a form of chert,  is a rock made of microcrystalline quartz. Its no harder than quartz but its tougher so its sharp edges last longer. Garnet paper is still widely available. The garnet mineral almandine is harder than quartz (Mohs 7.5), but its real virtue is its sharpness, giving it cutting power without scratching wood too deeply. Corundum  is the workhorse abrasive of sandpaper.  Extremely hard (Mohs 9) and sharp, corundum is also usefully brittle, breaking into sharp fragments that keep on cutting. Its great for wood, metal, paint, and plastic. All sanding products today use artificial corundum -- aluminum oxide. If you find an old stash of emery cloth or paper, it probably uses the real mineral. Emery is a natural mix of fine-grained corundum and magnetite. Polishing Abrasives   Three natural abrasives are commonly used for polishing and cleaning  metal:  enamel finishes, plastic, and tile. Pumice is a stone, not a mineral, a volcanic product with a very fine grain. Its hardest mineral is quartz, so it has a gentler action than sanding abrasives. Softer still is feldspar (Mohs 6), which is most famously used in the Bon Ami brand household cleaner. For the most delicate polishing and cleaning work, such as with  jewelry and fine crafts, the gold standard is tripoli, also called rottenstone. Tripoli is microscopic, microcrystalline quartz mined from beds of decomposed limestone. Sandblasting and Waterjet Cutting Applications of these industrial processes range from scrubbing rust off of steel girders to inscribing gravestones, and a wide range of blasting abrasives is in use today. Sand is one, of course, but airborne dust from crystalline silica is a health hazard. Safer alternatives include garnet, olivine (Mohs 6.5) and staurolite (Mohs 7.5). Which to choose depends on many factors other than mineralogical considerations, including cost, availability, the material being worked, and the experience of the worker. Many artificial abrasives are in use in these applications, too, as well as in  exotic things like ground walnut shells and solid carbon dioxide. Diamond Grit The hardest mineral of all is diamond (Mohs 10), and diamond abrasive is a large part of the world diamond market. Diamond paste is available in many grades for sharpening hand tools, and you can even buy nail files impregnated with diamond grit for the ultimate grooming aid. Diamond is best suited for cutting and grinding tools, however, and the drilling industry uses lots of diamond for drill bits. The material used is worthless as jewelry, being black or included - full of inclusions - or too fine-grained. This grade of diamond is called bort. Diatomaceous Earth The powdery substance composed of the microscopic shells of diatoms is known as diatomaceous earth or DE. Diatoms are a kind of algae that form exquisite skeletons of amorphous  silica.  DE is not abrasive to humans, metals, or anything else in our everyday world, but at the microscopic scale, its very damaging to insects. The broken edges of crushed diatom shells scratch holes in their hard outer skins, causing their internal fluids to dry out. Its safe enough to strew in the garden or to mix with food, such as stored grain, to prevent infestations. When they arent calling it diatomite, geologists have another name for DE, borrowed from German: kieselguhr.