The needs of people and the needs of the environment

The central question that these readings pose is how the needs of people can be reconciled with the needs of the environment. Although, human beings are a part of this environment, we have an enormous amount of influence on nature.Advertising We will write a custom essay sample on The needs of people and the needs of the environment specifically for you for only $16.05 $11/page Learn More In many cases, this influence is not beneficial. This is why the authors of these articles urge readers to think about long-term effects of human activities on the planet. More importantly, people have to understand that their welfare is dependent on sustainable environment. Therefore, its protection has to be one of their top priorities. These are the main ideas that have to be discussed and critiqued. One of the concepts that appealed to me is the anthropocene. Generally, it is used to refer to the epoch in which the footprint of human race has become very clear and m assive. Overall, this term appears to be quite appropriate because human beings did change the surface of the planet within the last three centuries, especially since the time of Industrial Revolution. The main problem is that people’s environmental impact adversely affected many species, water, and air. People often have an anthropo-centric view of the planet, and it is difficult for them to acknowledge that their survival may depend on the bio-physical environment. In my opinion, educators have to change people’s views on this problem, because the protection of environment greatly depends on individual effort. Furthermore, these articles show that the adoption of eco-friendly technologies is not a luxury, but a necessity for every country. Thus, governments should adopt different policies on this problem.Advertising Looking for essay on environmental studies? Let's see if we can help you! Get your first paper with 15% OFF Learn More Yet, there is anothe r issue that has been raised by the authors. They refer to the so-called mass extinction events. It is believed that in the past these events were caused by unavoidable factors such as climate change. The key issue is that human activities can be the cause of a mass-extinction event, but many people may not realize it. Certainly, it is possible to argue some of these concerns can be exaggerated, but there are some signs or markers of such events, for instance, the increasing rate of species extinction or the deterioration of coral reefs. Furthermore, one can mention such problems as soil erosion, overfishing, industrial wastes, and so forth. Unless these problems are not addressed, humankind can trigger a true mass-extinction event. This is why many researchers advocate the idea of biodiversity. One of the most important tasks is to promote the variations in ecosystem because in this way ecosystems can be made more sustainable. If people continue to turn a blind eye to the possibili ty of such an event, its probability will dramatically increase. This is why I agree with various authors who try to raise people’s awareness about different environmental problems. Some of the ideas discussed in these articles have been familiar to me. Nevertheless, these readings have prompted me to take a broader look at the role of human beings. On the whole, these articles call for a change in the mindset. They urge people to acknowledge that economic, social and political sustainability is impossible if the needs of the environment will be overlooked. Certainly, it is necessary to cope with specific environmental problems such as water pollution. Yet, at first, people have to see that they are a part of nature, rather than their masters.Advertising We will write a custom essay sample on The needs of people and the needs of the environment specifically for you for only $16.05 $11/page Learn More This essay on The needs of people and the needs of the environment was written and submitted by user Michaela Howe 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.

Freedoms of American Beauty essays

Freedoms of American Beauty essays The Moral American Beauty is such an excellent title for such a great movie. The title is so effective because of the movie being such a beauty in itself as a work of art. Many characters and points within the movie appear to display something other than what they really are on the inside, much like the title American Beauty, which is quite deceiving. As the movie progresses, I feel that Lester, whom is the main character of the movie, goes through the movie as a suppressed person, emotionally and decisively, to one who expresses his natural freedom to its limits. With his newfound freedom put in action I feel that Lester loses sight of his moral freedom and allows his natural freedom to fully control. I believe this is due to the amount of stress, tension and events occurring through this mid-life crisis that he is experiencing which finally build up to create his turning point. Right at the beginning of the movie, there are certain scenes which relate and lead to the main characters road to rebellion from his normal everyday life. One such scene is in the opening where he stands in the shower, masturbating, which is revealed as, the high point of his day. This shows his sexual frustration which is only a small part of a large fire burning within him. One other impacting factor is displayed in a scene later on that same day at work. He is being threatened with dismissal from the company that he has slaved for, for over 14 years. More fuel to be added to the fire from his professional standpoint. Finally, tied in with his pent up sexual tension, in comes a friend of his daughters in whom he begins to obsess about and many times, fantasize about. This all leads Lester to his release, his breaking point, in which he will reclaim his freedom that he quotes to losing early in the movie, I have lost something. I'm not exactly sure what it is, but I know I...

Does the EU suffer from a democratic deficit Essay

Does the EU suffer from a democratic deficit - Essay Example The ECSC was transformed into European Economic Community (EEC) in 1957 with the signing of Treaty of Rome that created a single market and aimed at removing all barriers to freedom of good, movement and trade. The EEC was hence a unique institution whose sole aim was to reduce barriers, decrease hindrances and increase integration within the member states. The EEC started off as a unique legal and political supranational institution that operates over and above the national governments of member states: it is an over arching government in itself that makes laws, takes decisions and creates circumstances for greater integration. This could not have been achieved with 27 member states without the presence of institutions: the treaty of Paris created four major institutions in 1951: a High Authority, Council of Ministers, European Assembly and a European Court of Justice. The Treaty of Rome 1957 followed this method and added to the list of institution a EURATOM (European Atomic Energy Commission) and renamed it as European Economic Community. However, the EU has gone through massive changes since then as subsequent treaties kept adding to the overall structure of it. The institutions as they stand now are as follows: The European Council, European Parliament, The Commission, European Court of Justice, The Court of Auditors and the Euro pean Central Bank. It is with EU’s structure that democratic deficit has been alleged to have seeped in. The term has been used since many years and according to Milev it has been accorded different meaning in all senses. The real meaning given to this term relates to alleged distance between the European government and the people that are rules: it is alleged that it neither has a proper democratic mandate nor proper democratic legitimacy that gives its actions validity. Initially the term was used to make way for direct elections to the Parliament, later on the debate kept surfacing repeatedly on different issues of constitutional importance, particularly where further integration and greater cooperation was concerned. Evidence is found in literature relating to the referendums, the rejected constitution etc. This democratic deficit has basically been seen because the key decisions that are taken in EU are taken within executive-controlled institution, the European Council and European Commission: there is no parliamentary form decision making with proper legitimacy and accountability. The European Council yields no legislative powers but has immense political powers as it comprises of all heads of the states, the ministers for foreign affairs, the president of the commission and the high representative for foreign affairs and security policy. The council is headed by a President of the Council who is elected through Qualified Majority Voting procedure for a term of two and a half years. Second, the European Court of Justice (ECJ) is the legal arm of the EU as it deals with all cases arising from and about EU law. The main function of ECJ has been enshrined in Article 19(1) of the Treaty of European Union (TEU) as to ensure â€Å"

Impacts of natural disasters on tourism Research Paper

Impacts of natural disasters on tourism - Research Paper Example This proposal is a combined study that incorporates the aims and objectives that would be the basis for the research studies, discussion of relevant literature review of the concerned topic coupled to the overview of the themes, issues, theories, and/or concepts. The research methodology that comprises of the introduction with rationale for the research design and data collection methods is also an integral part of the proposal that ends with the research philosophy and approaches with ethical considerations as a conclusion. Background The natural disasters are the profound environmental impacts that not only bring huge losses to human lives but also subject to arouse immense financial losses such as property damage. In addition, the aftereffects of the natural disasters emerge the fact that underdeveloped nations are the worst hits of the natural adversities as they have the least resources to cope and recreate their lives back to originality (Mechler, 2004). The natural disasters h ave been one of the most unfavorable and devastating episodes have come under the experiences by the human kind of the globe in numerous instances in time. The statistical data and evidences have proved the fact that the natural disasters have made a strong influence and tragic impact on the civilizations around the world. In addition, plentiful states, territories, nations coupled to populace of the particular areas cause to undergo recurring and overwhelming natural disasters as the world in entering into the level of advancements and innovations. The natural disasters have not only affected the human lives but also made the coral reefs, tropical ecosystem, aquatic... The research describes natural disasters that are the profound environmental impacts that not only bring huge losses to human lives but also subject to arouse immense financial losses such as property damage. In addition, the aftereffects of the natural disasters emerge the fact that underdeveloped nations are the worst hits of the natural adversities as they have the least resources to cope and recreate their lives back to originality. The natural disasters have been one of the most unfavorable and devastating episodes have come under the experiences by the human kind of the globe in numerous instances in time. The statistical data and evidences have proved the fact that the natural disasters have made a strong influence and tragic impact on the civilizations around the world. In addition, plentiful states, territories, nations coupled to populace of the particular areas cause to undergo recurring and overwhelming natural disasters as the world in entering into the level of advancem ents and innovations. The natural disasters have not only affected the human lives but also made the coral reefs, tropical ecosystem, aquatic temperate climate and terrestrial or global ecosystem fragile and weak. Tourism industry is one of the departments of the country that comes under mammoth impact from the natural disasters. Indeed, there is a very close connection between tourism and natural disasters. This is because the occurrence of any natural hazard would lead to disruption and destruction of the tourism industry, which would then require re-development and modifications.

Strategic Management and Leadership of General Motors Case Study

Strategic Management and Leadership of General Motors - Case Study Example GM, along with strategic partners manufactures automobiles and trucks in thirty-four nations, and trade and service these vehicles through its numerous brands.   Its biggest national market in the United States. China, Brazil, the United Kingdom, Canada, Russia, and Germany are the other nations which follow America in this context.   GM’s OnStar ancillary is one of the leading industries in vehicle safety, security and information facilities. On 10th July 2009,  General Motors Company obtained functions from General Motors Corporation. The General Motor Corporation established its place in the automobile manufacturing industry with the manufacturing of luxurious cars, which are classy at the same time superior from the other rival manufacturers of automobiles. Due to their high brand name and reputation in the market, the cost prices of cars from General Motors are generally very high and sometimes unreachable for general customers. (Global Operations, n.d.; General Mot ors, n.d) The General Motors Corporation held the first place as an automobile manufacturing company with respect to its sales for around 77 years until; Toyota took its place in the year 2008. The downfall of the company from the number one position is due to its negligence in terms of designing new innovative cars. There was a lack of creative innovations in terms of designs as they only have done some slight or minor changes in the designs to satisfy the customers. Some are of the view that the downfall is due to the poor strategic management of the company. The company faced difficulties in coming up with the internal and external pressures, like the accessibility of loans for the customers, the pressure from the Government and Labor Unions, crisis of oil, other competitive technologies such as electric cars, etc. (Global Operations, n.d.; General Motors, n.d) These difficulties clearly suggested that the company needs to re-strategize its  operations.

Design Of Two Stage High Gain Opamp

Design Of Two Stage High Gain Opamp A High Swing Ultra-Low-Power Two Stage CMOS OP-AMP in 0.18 um Technology with 1.2v supply, is presented. Cascode technique has been used to increase the dc gain. The unity-gain bandwidth is also enhanced using a gain-stage in the Miller capacitor feedback path. The proposed opamp provides 236MHz unity-gain bandwidth, 109.7 degree phase margin. The circuit has 94.34dB gain. The power dissipation of the designed only is approximately 50uw. The designed system demonstrates relatively suitable response in different temperature. (1)Introduction:-Operational Amplifiers (Op amps) are one of the most widely used building blocks for analog and mixed-signal systems. They are employed from dc bias applications to high speed amplifiers and  ¬Ã‚ lters. General purpose op amps can be used as bu ¬Ã¢â€š ¬ers, summers, integrators, di ¬Ã¢â€š ¬erentiators, comparators, negative impedance converters, and many other applications. With the quick improvements of computer aided design (CAD) tools, advancements of semiconductor modeling, steady miniaturization of transistor scaling, and the progress of fabrication processes, the integrated circuit market is growing rapidly. Nowadays, complementary metal-oxide semiconductor (CMOS) technology has become dominant over bipolar technology for analog circuit design in a mixed-signal system due to the industry trend of applying standard process technologies to implement both analog circuits and digital circuits on the same chip. While many digital circuits can be adapted to a smaller device level with a smaller power supply, most existing analog circuitry requires considerable change or even a redesign to accomplish the same feat. With transistor length being scaled down to a few tens of nanometers, analog circuits are becoming increasingly more di ¬Ã†â€™cult to improve upon. The operational amplifier is one of the most useful and important components of analog electronics. They are widely used in popular electronics. Their primary limitation is that they are not especially fast: The typical performance degrades rapidly for frequencies greater than about 1 MHz, although some models are designed specifically to handle higher frequencies. The primary use of op-amps in amplifier and related circuits is closely connected to the Concept of negative feedback. Feedback represents a vast and interesting topic in itself. We will discuss it in rudimentary terms a bit later. However, it is possible to get a feeling for the two primary types of amplifier circuits, inverting and non-inverting, by simply postulating a few simple rules (the golden rules). We will start in this way, and then go back to understand their origin in terms of feedback. (2)Basic Block diagram CMOS op-amp:- Operational Amplifiers are the backbone for many analog circuit designs. Op-Amps are one of the basic and important circuits which have a wide application in several analog circuits such as switched capacitor filters, algorithmic, pipelined and sigma delta A/D converter, sample and hold amplifier etc. The speed and accuracy of these circuits depends on the bandwidth and DC gain of the Op-amp. Larger the bandwidth and gain, higher the speed and accuracy of the amplifier Op-amp are a critical element in analog sampled data circuit, such as SC filters, modulators. The general block diagram of an op-amp with an output buffer is shown below http://s.eeweb.com/members/jessica_shoemaker/projects/2011/03/22/Image1-1300812338.png Figure 1. Block diagram of Op-Amp The first block is a differential amplifier. It has two inputs which are the inverting and non-inverting voltage. It provides at the output a differential voltage or a differential current that, essentially, depends on the differential input only. The next block is a differential to single-ended converter. It is used to transform the differential signal generated by the first block into a single ended version. Some architecture doesnt require the differential to single ended function; therefore the block can be excluded. In most cases the gain provided by the input stages is not sufficient and additional amplification is required. This is provided by intermediate stage, which is another differential amplifier, driven by the output of the first stage. As this stage uses differential input unbalanced output differential amplifier, so it provide required extra gain. The bias circuit is provided to establish the proper operating point for each transistor in its saturation region. Finally , we have the output buffer stage. It provides the low output impedance and larger output current needed to drive the load of op-amp or improves the slew rate of the op -amp. Even the output stage can be dropped: many integrated applications do not need low output impedance; moreover, the slew rate permitted by the gain stage can be sufficient for the application. If the op-amp is intended to drive a small purely capacitive load, which is the case in many switched capacitor or data conversion applications, the output buffer is not used. When the output stage is not used the circuit, it is an operational transconductance amplifier, OTA. The purpose of the compensation circuit is lower the gain at high frequencies and to maintain stability when negative feedback is applied to the op amp. A. Circuit Operation The final circuit designed to meet the required specifications is shown in Figure 2. The topology of this circuit is that of a standard CMOS op-amp. It comprised of three subsections of http://www.silvaco.com/tech_lib_TCAD/simulationstandard/1995/mar/a2/a2_fig1.gif Figure2. The topology chosen for this Op-Amp design. Circuit, namely differential gain stage, second gain stage and bias strings. It was found that this topology was able to successfully meet all of the design specifications. B. Differential Gain Stage Transistors M1, M2, M3, and M4 form the first stage of the op amp the differential amplifier with differential to single ended transformation. Transistors M1 and M2 are standard N channel MOSFET (NMOS) transistors which form the basic input stage of the amplifier. The gate of M1 is the inverting input and the gate of M2 is the non-inverting input. A differential input signal applied across the two input terminals will be amplified according to the gain of the differential stage. The gain of the stage is simply the transconductance of M2 times the total output resistance seen at the drain of M2. The two main resistances that contribute to the output resistance are that of the input transistors themselves and also the output resistance of the active load transistors, M3 and M4. The current mirror active load used in this circuit has three distinct advantages. First, the use of active load devices creates a large output resistance in a relatively small amount of die area. The current mi rror topology performs the differential to single-ended conversion of the input signal, and finally, the load also helps with common mode rejection ratio. In this stage, the conversion from differential to single ended is achieved by using a current mirror (M3 and M4). The current from M1 is mirrored by M3 and M4 and subtracted from the current from M2. The differential current from M1 and M2 multiplied by the output resistance of the first stage gives the single-ended output voltage, which constitutes the input of the second gain stage. C. Second Gain Stage The second stage is a current sink load inverter. The purpose of the second gain stage, as the name implies, is to provide additional gain in the amplifier. Consisting of transistors M5 and M6, this stage takes the output from the drain of M2 and amplifies it through M5 which is in the standard common source configuration. Again, similar to the differential gain stage, this stage employs an active device, M6, to serve as the load resistance for M5. The gain of this stage is the transconductance of M5 times the effective load resistance comprised of the output resistances of M5 and M6. M6 is the driver while M7 acts as the load. (3)Design of the op-amp The design in this project is a two-stage op amp with an n-channel input pair. The op amp uses a dual-polarity power supply (Vdd and Vss) so the ac signals can swing above and below ground and also be centered at ground. The hand calculation results provided the estimated parameters (such as transistor width and length, capacitance, etc.) to make the circuit schematic (shown in figure) in Design Architect IC and for the circuit analysis in Model Sim Eldo of Mentor Graphic Tool.Schematic used in this design is C:Documents and SettingsstudentDesktop44132421.png Design of two stage opamp using mentor graphics (4)Simulation Result Using Mentor Graphics EDA Tool we have design High Swing Ultra-Low-Power Two Stage CMOS OP-AMP as shown in schematic window. Fig 1 Fig 2 shows the Gain and Phase plot for basic two stage opamp. After simulation we have analyzed that the gain of the opamp is 94.34db and have a phase margin of 109.7 degree at 40 MHz frequency. This analysis can be made possible using different sizing of the MOS transistor at different stages. There graphs are as C:UsersDellDesktopopampGAIN GRAPH.png Fig. 1 Gain graph C:UsersDellDesktopopampPM.png Fig.2 phase margin plot From the reference paper[14] we have seen that the gain is 90 db which is improves up to 94.3db which is used in any of Analog designing. Table shows the brief of results as PARAMETERS VALUE PROCESS TECHNOLOGY 180nm GAIN 94.34 db PHASE MARGIN 109.7 ° at 40MHZ

To Believe or Not to Believe, Modern Urban Legends Essay -- essays re

To Believe or Not To Believe Modern Urban Legends Many people have heard the tale of the dotty grandmother who tried to dry off her damp poodle by placing it in the microwave oven. The dog exploded, sad to say the least , and Grandma has never been quite the same since. The story is not true; it is an urban legend, circulating by word of mouth since the 1970s (Brunvand, 108). Urban legends are popular stories alleged to be true and transmitted from person to person by oral or written communication. Legends tend to arise spontaneously and are rarely traceable to a single point of origin. They spread primarily from individual to individual through various communication, and only in atypical cases through mass media or other institutional means. Every culture has its folktales, including modern America. However, instead of involving gods and goddesses or princes and princesses, modern society's legends involve "some guy my sister's best friend knows" or "someone who woke up in a motel room." They happened, supp osedly, to real people, usually recently, in a particular place. They touch the most sensitive nerves of human minds with ironic twists, gross-out shocks, and moral lessons learned the hard way. However, the most remarkable thing about these stories is that so many people believe them and pass them on. Why does an audience take the storyteller's word at face value, instead of recognizing it as an urban legend? The most obvious reasons as to why this happens are how the story is told to an individual, the relationship between the teller and the listener, and in the case of horror legends, the fear invoked through the moral of the story. There are many particular elements of an urban legend that play an enormous role in how it is interpreted by the public. They are usually characterized by a combination of humor, horror or a warning. The two types of urban legends are cautionary, usually having a moral to the story or a warning to stay "safe", and non-cautionary, which have no cautionary or moral element at all (Harris, 1). The details or 'beef' of these legends are the primary factors that make them so believable. A good example is the "Alligators in the Sewer" legend. The setting of this legend is usually a large city, in which a reptile-loving fanatic de... ... of a legend, and the details provide a vivid image for the mind to weave. Like numerous other cultures in history, the modern human is searching for answers to questions. However, these questions cannot be answered by the means that exist in the twenty-first century, so they return to the intellectual way of explaining events through their own perception, which are then created into stories and later evolve into legends and myths. Urban legends hold a significant place within the world's cultures, dating back to time beyond remembering, and are likely to be told and believed well into the future. References Brown, Yorick. The 500 Best Urban Legends Ever! New York City: I Books, 2003. Brunvard, Jan Harold. Too Good to Be True: The Colossal Book of Urban Legends. New York: W.W. Norton and Company, 2000. 180, 240-249. Harris, Tom. Howstuffworks 'How Urban Legends Work'. 2001. 1 Mar. 2004. . Roeper, Richard. Urban Legends: The Truth Behind All Those Deliciously Entertaining Myths That Are Absolutely, Positively, 100% Not True. New York City: Career P, 1999. 179-182.