10 Phosphorus Facts (P or Atomic Number 15)

Phosphorus is element 15 on the periodic table, with the element symbol P. Because it is so chemically reactive, phosphorus is never found free in nature, yet you encounter this element in compounds and in your body. Here are 10 interesting facts about phosphorus: Fast Facts: Phosphorus Element Name: PhosphorusElement Symbol: PAtomic Number: 15Classification: Group 15; Pnictogen; NonmetalAppearance: Appearance depends on the allotrope. Phosphorus is a solid at room temperature. It may be white, yellow, red, violet, or black.Electron Configuration:  [Ne] 3s2  3p3Discovery: Recognized as an element by Antoine Lavoisier (1777), but officially discovered by Hennig Brand (1669). Interesting Phosphorus Facts Phosphorus was discovered in 1669 by Hennig Brand in Germany. Brand isolated phosphorus from urine. The discovery made Brand the first person to discover a new element. Other elements such as gold and iron were known before that, but no specific person found them.Brand called the new element cold fire because it glowed in the dark. The name of the element comes from the Greek word phosphoros, which means bringer of light. The form of phosphorus Brand discovered was white phosphorus, which reacts with oxygen in air to produce a green-white light. Although you might think the glow would be phosphorescence, phosphorus is chemiluminescent and not phosphorescent. Only the white allotrope or form of phosphorus glows in the dark.Some texts refer to phosphorus as the Devils Element because of its eerie glow, tendency to burst into flame, and because it was the 13th known element.Like other nonmetals, pure phosphorus assumes markedly different forms. There are at least five phosphorus allotro pes. In addition to white phosphorus, there is red, violet, and black phosphorus. Under ordinary conditions, red and white phosphorus are the most common forms.While the properties of phosphorus depend on the allotrope, they share common nonmetallic characteristics. Phosphorus is a poor conductor of heat and electricity, except black phosphorus. All types of phosphorus are solid at room temperature. The white form (sometimes called yellow phosphorus) resembles wax, the red and violet forms are noncrystalline solids, while the black allotrope resembles graphite in pencil lead. The pure element is reactive, so much so that the white form will ignite spontaneously in air. Phosphorus typically has an oxidation state of 3 or 5.Phosphorus is essential to living organisms. There are about 750 grams of phosphorus in the average adult. In the human body, its found in DNA, bones, and as an ion used for muscle contraction and nerve conduction. Pure phosphorus, however, can be deadly. White pho sphorus, in particular, is associated with negative health effects. Matches made using white phosphorus are associated with a disease known as phossy jaw which causes disfiguration and death. Contact with white phosphorus can cause chemical burns. Red phosphorus is a safer alternative and is considered non-toxic.Natural phosphorus consists of one stable isotope, phosphorus-31. At least 23 isotopes of the element are known.The primary use of phosphorus is for fertilizer production. The element is also used in flares, safety matches, light-emitting diodes, and steel production. Phosphates are used in some detergents. Red phosphorus is also one of the chemicals used in illegal production of methamphetamines.According to a study published in the Proceedings of the National Academies of Sciences, phosphorus may have been brought to Earth by meteorites. The release of phosphorus compounds seen early in Earths history (yet not today) contributed to the conditions needed for the origin of l ife. Phosphorus is abundant in the Earths crust at a concentration of about 1,050 parts per million, by weight.While its certainly possible to isolate phosphorus from urine or bone, today the element is isolated from phosphate-bearing minerals. Phosphorus is obtained from calcium phosphate by heating the rock in a furnace to yield tetraphosphorus vapor. The vapor is condensed into phosphorus underwater to prevent ignition. Sources Greenwood, N. N.; Earnshaw, A. (1997). Chemistry of the Elements (2nd Ed.), Oxford:Butterworth-Heinemann.Hammond, C. R. (2000).  The Elements, in Handbook of Chemistry and Physics  (81st ed.). CRC press.​Meija, J.; et al. (2016). Atomic weights of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry. 88 (3): 265–91.Weast, Robert (1984).  CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp.  E110.

The Theory Of International Politics - 1785 Words

â€Å"Theory of international politics† is a Classic because it gives a chance to recognise not just the international system but also history and ethos in context. Gives individuals a chance to think outside the box and perhaps understand the international state much clearer. Waltz’s notes that Polarity is the only important change in system structure that we can expect under anarchy. Waltz’s theory of international politics is proven to be an unusual powerful volume, creating new discussions and giving new incentive to existing ones. For example, â€Å"the book commenced a debate over whether state’s concerns over relative gains impeded cooperation and added momentum to the question of whether bipolar or multipolar international systems were more war-prone† (Griffiths, 2007). However, a flaw is that his theory is too reliant on material understanding of power and misses the social. On the other hand, regardless of his dependency on material unders tanding, his theory is still practical and helps to understand issues that have occurred from a neo-realist perspective. To the extent â€Å"that structural realism sought to explain the cold war by referring to bipolarity†, Waltz’s argued that the cold war was â€Å"firmly rooted in the structure of post war international politics and will last if that structure endures† (Waltz, 1989). A downfall of waltz’s ideology is that it’s difficult to settle with the decline in interstate war and the increase in multilateral co-operation among state. MoreoverShow MoreRelatedTheories of International Politics2076 Words   |  8 Pages#3. Discuss the different theoretical approaches to international political economy represented by Realism, Liberalism, and Marxism-Leninism (Radicalism). What are the major differences between these perspectives? How do these three theories differ in their analysis of globalization (what explains it, who benefits from it, etc. )? Realism, Liberalism, and Radicalism offer three very different ideas to International Political Economy. They differ for many reasons, such as the winners and loser, poorRead MoreThe Theories Of International Politics Essay1648 Words   |  7 Pagesapproaches have been developed as an attempt to explain the workings of International Politics. These different perspectives which use different methods and assumptions can be helpful in studying and predicting the actions and interactions of the actors they concentrate on and include, realism, liberalism and feminism. No single approach however succeeds in taking into consideration all factors and outcomes in world politics and each of them has distinct benefits as well as certain limitations. TheRead MoreAnalysis Of The Book Theories Of International Politics And Zombies 1419 Words   |  6 PagesCameron Lurcook Dr. Michael Allen Political Science 306 September 21, 2015 Drezner Reaction Analysis In Daniel W. Drezner’s book, Theories of International Politics and Zombies, Drezner explores the theoretical impact a zombie apocalypse would have on international relations. In his exploration of ideas, Drezner analyzes the approaches of different types of feminism disciplines to a zombie apocalypse. The two feminist ideas he explores are liberal feminism and post structuralist feminism. DreznerRead MoreConstructivism: Social Theory of International Politics by Alexander Wendt1057 Words   |  5 PagesConstructivism Alexander Wendt in his work entitled Social Theory of International Politics (1999) explain the basic propositions of constructivism, arguing that â€Å"structures of human association are determined primarily by shared ideas rather than material forces; thus, identities and interests of purposive actors are constructed by these shared ideas rather than given by nature† (Palan, 2000, p. 576). As such, these shared ideas construct identities and interests. In this regard, Wendt supportsRead MoreIdealism, Realism, And Marxism1559 Words   |  7 PagesWhat do the theories we have looked at to this point (idealism, realism, Marxism) tell us about the prospects, and necessary conditions, for cooperation in international politics? International politics have been in our nation since the beginning of time. 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Liberals do not thinkRead MoreCompare and Assess the Three Alternative The oretical Approaches to International Relations (Realism, Institutionalism, State-Society Approaches) in Terms of Their Ability to Explain Outcomes in the Issue-Area of War.1478 Words   |  6 Pagesimportant area concerning international relations over the past decade. Wars varying from Russia’s invasion of Georgia, to the United States involvement in Iraq and Afghanistan placed war on top of international politics agenda. These wars, along with all other wars, are started for various reasons, which different international relations theories try to identify. Theories such as realism or institutionalism may have severely different views on identical cases, and while all theories usually have some degreeRead MoreWhy Has Marxism Been Neglected For International Relations?977 Words   |  4 PagesWhy has Marxism been neglected in International Relations? One of the major reasons why Marxism has generally been neglected in International Relations is due to the scarcity of Marxist writing that is specifically focused on this subject. However, it can be argued that due to this paucity of material, Marxist theory has nothing of substantial value to offer with regards to international relations. Non- Marxists argue that the concepts in Marx’s analysis of capitalist production; class, labor, exchangeRead MoreThe Ability Of A Classic Book879 Words   |  4 PagesBlidal, Casper Sylvest and Perter Wilson in ‘Classics of international Relations: Essays in criticism and appreciation’ they define a classic in five key ways; ‘the acknowledged or undisputed classic†, â€Å"the archetypal classic†, â€Å"the classic in the making†,† the overlooked classic† and lastly the â€Å"Alternative format classic†. Kenneth Waltz’s neo-realist ‘Theory of International Politics†™ is arguably the utmost significant book in International relations, as Jack Donnelly argues it is â€Å"causing a fundamentalRead MoreRealism Is The Most Convincing Paradigm For International Relations? Essay1579 Words   |  7 PagesMOST CONVINCING PARADIGM FOR INTERNATIONAL RELATIONS? WHAT ARE THE STRENGTHS AND WEAKNESSES OF REALISM AS A THEORY FOR INTERNATIONAL RELATIONS? Realism has dominated international relations theory since emerging in the 1930’s. The era of state conflict lasting from the 1930’s to the end of the cold war in 1947, proved the perfect hostile environment to fit the largely pessimistic view of world politics. While many aspects of realism are still alive in International Relations today; including the

Logistics Free Essays

Case Study report of DHL Abstract The rapid development of global commerce has drove logistics to reduce products lifecycles, increase response and action efficiency and optimize investments of inventory for current businesses. Therefore, logistics plays a pivotal role in nowadays commerce. The objective of the report is to discuss and evaluate the existing logistics theories. We will write a custom essay sample on Logistics or any similar topic only for you Order Now Whereas, DHL will be selected as a case study so as to get a further understanding on logistics according to the analysis result. Introduction As with the growing complexity of transporting goods and supplying materials for a business in world’s supply chain, expertise that developed to deal with this kind of problem is imperative so logistics. The concept of logistics is not specific, the world’s formal definition is ‘Logistics is the management science of supply chain and the art of controlling and managing any kinds of resources flow like products, information, petrol and even people between the origin point and the consumption terminal so as to satisfy clients’ demand’. Logistics is in relation to the process of moving the right products and services at the right quality to the right place at the right time with right prices. It is said to be the essential part of any marketing or manufacturing activities. Logistics involves Literature Review Since the value of time becomes more and more important in today’s global commerce, transportation speed and delivery reliability are necessary for companies to compete emulously in business operations which drives logistics industry to improve service standard. In 1996, Kostecki pointed that conscientious in accordance with service determine logistics companies’ emulously advantage and success. To that content, an important part to be integrated into time management for logistics industry is operating business with clients effectively and innovating more efficiency operation skills with clients. This is important because any inefficiencies and irregularities in operating with customers that happened in different regions can affect the commerce environment significantly for logistics companies argued by Ahanori and Nachum in the year 2000. They said that the current development trend in logistics industry is just in time supply, e-commerce and growing globalization management. In 1998, Altabet predicted that logistics theory would be updated into supply chain management. The impact of effective forecast in the process of supply chain management on a company is significant. Kiely states that it will result in inventory investment reduction, customer satisfactory improvement and product distribution efficiency enhancement. Generally speaking, forecasting eliminates companies’ worry about excess inventory investment so as to increase the efficiency when operates with customers. Another important managerial skill for commerce is the cost management theory. Degraeve and Roodhooft point that over half of entire costs is accounted from external goods and services parchment. In order to hold a competitive position in the logistics market, companies should develop a more dependable and lower cost supply chain while assure high service quality for customers. Some suggests that company can increase the cost management reliability via computer technology. With the increasing importance of globalization transaction, contracts act essential role in international trade. On account of companies always being confronted with the situation of accomplishing orders with deadline and quotas, some suggest a management approach of Vendor management inventory to handle the problem (Waller, 1999). The management project help companies distribute the requirement materials more flexible and offer the possibility of cost reduction and efficiency improvement at the same time. Objectives With the purpose of understanding logistics theory in accordance with practical application and to see how enterprises apply logistics theory to enhance efficiency and reduce cost . tc. DHL, the global leading logistics player is selected for a case study about its logistics operations in this report. Logistics operation of DHL DHL is the leader of global express, international transportation and air freight. It is the world’s NO. 1 shipping contract logistics provider. DHL offers customers a full range of logistics solutions from documents to supply chain management. As the global biggest logistics expert, DHL is a strong logistics partner for its clients that can offer any kind of freight transportation via water, railway, road and air. It can supply either pecial or shared operations of warehousing and distribution to any kind of industry sectors. On account of DHL is entirely service oriented, it involves no material movement itself but that for clients both consigner and consignee and the intermediaries as well. It just includes physical distribution and procurement. While, procurement involves in packaging materials like paper, plastic and boxes etc. the process is as follows. The first step is to weight and check for condition of the products and materials that collected from the consigners and then pack them according to their various characteristics. After that, products or services will be sent along to their destinations. DHL facilitate service performance via effective forecasting. It means the estimation of time required for both collecting wares from the consigner and that arriving to the final client. The crucial point of DHL’s entire business is timely delivery. The delivery documentation and process will be coordinated based on the approachability and distance to the final consignee. DHL can measure the time that it will cost for the goods to arrive to its end-point precisely. DHL provides customers Web Shipping services that allocate a certain user name and password for each client which allows goods sender and receiver to track goods status via online information center. DHL has won the reputation for its continuous development on supply chain solutions innovation that improves control. It supplies for customers reverse logistics management solutions that enable client design, accomplish and conduct materials flow and regulate corresponding information, support of the supply chain to resize values and guarantee safe-handling of products. It involves receiving, ordering, controlling and conducting returned goods. In addition, DHL offers service for manufactures of service and replacement. It enable customer receive and send manufactures’ replacement parts in terms of pre-designed service such as with a certain deadline. What’s more, DHL offers some services other than physical logistics services such as order management, global inventory management, freight solutions, and customs solutions. The following three figures show the flow process of DHL. Figure [ 1 ] Process Map of DHL Figure [ 2 ] internal process map of DHL Figure [ 3 ] external process map of DHL Five objectives analysis of DHL’s operation Quality DHL has a process of performance measurement so as to supervise the daily working process and understand customers’ voice. The company applies DePict project management approach to track every project in order to ensure their service quality. Furthermore, most units in the management system of DHL are in accordance with the system ISO 9000 which is the global quality controlling standard. Hence, DHL always keeps a high level service quality. Speed DHL provides its client’s specialized solutions so as to ensure a faster response speed to the changing marketplace. For its different kind of customers such as automotive, retail and fashion, DHL offers each of them unique logistics solutions so as to enable a lower response time to the market. Dependability DHL is a leading player in many fields of the logistics market; it operates business in about 220 countries and employs more than 31000 people. In addition, it has the world’s largest aircraft fleet and a huge number of ships and vehicles. Moreover, it conducts business with advanced management methodologies and performance measurement. All of these resources ensure DHL an unrivalled ability to accomplish any kinds of logistics services perfectly. Flexibility DHL involves in many parts of logistics market and has strong enough ability in each field. It can offer many kinds of logistics service via different routes. Otherwise, DHL can provide customizing logistics or supply chain solutions to meet their specific demand. Cost As a leader in many of logistics market, the bargaining power of DHL is much higher than most of its competitors which therefore will bring some advantages for DHL. However, for there are lots of companies that can provide similar service or products it may lose the price advantage in some egment market. SWOT analysis of DHL’s operation Strength The biggest strength for DHL is its leader position in logistics field. It is the dominator in the area of freight transportation through air and ocean. DHL’s business covers a larger area of the world; it provides services for over 220 countries. The leading position enable DHL enhance its economy scale and the power of setting price. Secondly, DHLâ⠂¬â„¢s diversified business model enable the company to reduce the risks in business activities and discover new opportunities in emerging and existing marketplaces. DHL devotes itself to the division of mail, supply chain, freight transportation and express. In addition, DHL has the highest employee productivity based on the data from Datamonitor. What’s more, the DHL owns a large airplane fleet that can provide great transportation ability and a long-term emission reduction GOGREEN program which makes DHL as the first mover in this area. Weakness According to the data collected by Datamonitor, DHL has encountered a problem of decline in its cash flow which results from low efficient cost management. This will reduce its resources availability when it is in pursuit of growing plans. Another problem is due to its huge airplane fleet. As with the rapid climate changing, enterprises are required to undertake their social responsibility for the environment. Large number of aircraft implies lots of emission. Although DHL is trying to apply approaches to reduce aircraft emission such as using higher quality fuel and optimal flight line, reductions on emissions will be still minimal due to the limitations in nowadays aeromechanics implies that airplane efficiency cannot be improve a lot in this aspect. What’s more, as a forerunner in the area of making effort to reduce emission, DHL will also get the advantage in compliance with new environmental regulations in the future. Opportunities As with the rapid development of e-commerce, online shopping nowadays grows with a steady high speed year by year. Most of consumers will move their shopping habitat from retail to online. Thus deliveries will increase significantly with the step of online sales which will promote the growth of DHL’s business. Moreover, consumers nowadays require more environmental friendly products and services which result in a growing demand from enterprises to get greener logistics services, higher efficiency transportation and low carbon offerings. The GOGREEN policy of DHL will meet the demand of such companies and the continuation development of this kind of services will help DHL get a good hand in competence with others. Threats DHL currently is in the situation of facing fierce competition in logistics business. The scattered global logistics market brings intense competition to DHL. These may result in negative effects on the company that potentially will decrease its growth and profits. What’s more, it is said that logistics industry produces a big percent of global emission which lead to governments from all over world aim to reduce the pollution contribution from this market. As a multi-national enterprise DHL always faces the pressure across from governments and NGOs as well. It may affects DHL’s reputation since people nowadays consider more and more about a company’s social responsibility. Conclusions and Recommendations To conclude, logistics is very important for nowadays global intense competitive marketplace. As is known to all, logistics is an essential part of any companies function. A good logistical operation can enable a company cut the production cost and enhance the efficiency. In this report, DHL was selected as a case study to help analysis logistics theory. DHL owns the biggest logistics network all over the world. It provides any kind of freight transportation via multiple approaches. DHL conducts its great range of logistics activities and solutions for clients across almost 220 countries. It is dedicated to provide customers better performance and low-cost service in today’s highly competitively market. In order to get the victory in the competition, DHL should set a reasonable price, provide a faster and larger amount of scheduled service, improve the function of tracking goods, enlarge the business geographic area, enhance its dependability and innovate new service for customers. In addition, DHL should make more efforts on emission reduction. The performance management and GOGREEN program may help DHL to accomplish this target. In a word, the art of logistics is essential to every organization while DHL has shown its great management and operations to enable a leading position in the world’s market. References 1. Ahanori, Y Nachum, L 2000,  Globalization of Services: Some Implications for Theory and  Routledg: London 2. Degraeve, Z Roodhooft, F 1999, â€Å"Effectively selecting suppliers using total Cost of Ownership†,  The Journal of Supply Chain Management, vol. 35, no. 1, pp. 5-10. 3. Kiely, D 1999, â€Å"Synchronizing supply chain operations with consumer demand Using customer data†,  The Journal of Business Forecasting Methods Systems, vol. 17, no. 4, pp. 3-9. 4. Kostecki, M 1996, â€Å"Waiting Line as a Marketing Issues†,  European Management Journal, vol. 14, no. 3, pp. 295-303. How to cite Logistics, Papers Logistics Free Essays Logistics process Definition of logistics Logistics is a function that is flexible and changes according to the various constraints and demands imposed upon it. Logistics is – Supply + Materials Management + Distribution and logistics is basically the overall management of distributions and supply. There are many different transport methods including- * Air- This is used to deliver goods fast and also internationally. We will write a custom essay sample on Logistics or any similar topic only for you Order Now * Water- This can be used to transport goods slower. Sometimes unreliable. * Road- This is to be used nationally, and used by the most ranges of business. This is the most popular way of transportation. Rail- This is the quicker way of transporting goods. Royal Mail use rail to transport goods to their regional offices. * Container- Containers are used to deliver goods simply because they don’t need as much security and also cost less in transport, meaning more profits. When we compare different retailers, we have to take into consideration: * The amount of stores that the retailer has. * Where the location of the stores are * The supply chain. For example: Tesco has over 7500 stores in the UK, which includes a mixture of high street, out of town and local stores. They have a wide supply chain which stretches globally as they try to source the cheapest products to sell in their supermarkets. Independent stores may have only a few stores at the most (for example Merrie England). The location of the stores are on the high street and in town centres and the supply chain will only reach nationally. Small retailer – Small retailers usually use wagons to transport from manufacturer to retailers, and mostly use wholesalers. These are more likely to have less suppliers to work with then larger retailers because of the size of the stores. Multinational retailer: the retailer buys it direct from the multinational manufacturers and then supplies to the customers, normally using wagons from the distribution centres. Relationship with suppliers All retailers, whether they are small or large, have to have a relationship with their suppliers. This is so they can get the best products at the best price and can also introduce new products. By having a good relationship with the suppliers, they know if they are getting the best deal and can also have a good payment plan, whilst also having good interactions by using electronics. Product search * Logistics * Electronic data interchange * Supply chain integration * Ordering and payment * Invoice orders The supply chain for a large and small business is more or less the same- especially the logistics and distribution stage. However, larger businesses have to have warehousing to store all of their surplus stock, or to store and to distribute to all of their stores. Examples of this can be supermarket warehouses, which take all of the bulk stock and then separate them into store deliveries, then use their wagons for store deliveries. This not only saves the business time but is also cost effective as the larger the order, the cheaper the product should be for the supermarket. This means that the stock that supermarkets and other larger businesses take will be cheaper than smaller businesses. Stock Management By having management on how much stock needs distributing to independent stores, they can reduce waste, and overall, saves the business time and money by putting them into the correct stores. It also keeps customers happy, because if the stock is to hand, then customers won’t complain and/or go to other competitors. Warehousing/Stock Rooms Larger Retailers will have lots of different warehouses to meet the customer needs and to also deliver to different stores across the country. By warehousing and storing the products in a safe, cool and dry place, it will keep the products fresh (if they are food/drink items), or safe and without the risk of overheating/getting water damage to the products. By keeping the products in these conditions, they will be stay in perfect condition until you need them. Internationally Small Independents won’t need to distribute internationally, so won’t need to use rail or air transportation methods to deliver their stocks. Also, because of how small they are, they are also less likely to need to source their items from abroad aswell, unless they are a business that relies on international sourcing. However, larger retailers have to rely on sourcing from other countries, especially supermarkets that have to get their fresh foods (including fruit and vegetables) from other countries. This means that they have to rely on air travel to bring in their items. They also have to rely on fast transport methods, such as containers and wagons to deliver their items to the distribution centres before delivering it to local independent stores. Use of Electronics Smaller Independent shops won’t need to rely on electronics as much as the larger retailers, because of how big their stores are and how they get their stock. Small independent stores will normally get their stock from cash and carry’s so will normally use man power to get their items. However, larger stores will have to constantly source their items from different retailers, and have to rely on electronics to order items from the distribution areas. This means that if any problems occur with the electronics surrounding the business, they could have problems with orders and could therefore run out of products. How to cite Logistics, Papers