Introduction to Nanotechnology free essay sample

Generally nanotechnology deals with structures of the size 100 nanometers or smaller in at least one dimension, and involves developing materials or devices within that size. Nanotechnology is very diverse, ranging from extensions of conventional device physics to completely new approaches based upon molecular self-assembly, from developing new materials with dimensions on the nanoscale to investigating whether we can directly control matter on the atomic scale. There has been much debate on the future implications of nanotechnology. Nanotechnology has the potential to create many new materials and devices with a vast range of applications, such as in medicine, electronics and energy production. On the other hand, nanotechnology raises many of the same issues as with any introduction of new technology, including concerns about the toxicity and environmental impact of nanomaterials, and their potential effects on global economics, as well as speculation about various doomsday scenarios. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted. We will write a custom essay sample on Introduction to Nanotechnology or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The first use of the concepts found in nano-technology (but pre-dating use of that name) was in Theres Plenty of Room at the Bottom, a talk given by physicist Richard Feynman at an American Physical Society meeting at Caltech on December 29, 1959. Feynman described a process by which the ability to manipulate individual atoms and molecules might be developed, using one set of precise tools to build and operate another proportionally smaller set, and so on down to the needed scale. In the course of this, he noted, scaling issues would arise from the changing magnitude of various physical phenomena: gravity would become less important, surface tension and vander Waals attraction would become increasingly more significant, etc. Name – Swarnalipi Behera Regd. no – 0601211053 Roll. no – 106321 Branch – IT 1. Introduction Nanotechnology is an essentially modern scientific field that is constantly evolving as commercial and academic interest continues to increase and as new research is presented to the scientific community. The field’s simplest roots can be traced, albeit arguably, to 1959 but its primary development occurred in both the eighties and the early nineties. In addition to specific scientific achievements such as the invention of the STM, this early history is most importantly reflected in the initial vision of molecular manufacturing as it is outlined in three important works. Overall, an understanding of development and the criticism of this vision is integral for comprehending the realities and potential of nanotechnology today. Nanotechnology, shortened to nanotech, is the study of the controlling of matter on an atomic and molecular scale. Generally nanotechnology deals with structures of the size 100 nanometers or smaller in at least one dimension, and involves developing materials or devices within that size. Nanotechnology is very diverse, ranging from extensions of conventional device physics to completely new approaches based upon molecular self-assembly, from developing new materials with dimensions on the nanoscale to investigating whether we can directly control matter on the atomic scale. There has been much debate on the future implications of nanotechnology. Nanotechnology has the potential to create many new materials and devices with a vast range of applications, such as in medicine, electronics and energy production. On the other hand, nanotechnology raises many of the same issues as with any introduction of new technology, including concerns about the toxicity and environmental impact of nanomaterials, and their potential effects on global economics, as well as speculation about various doomsday scenarios. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted.

Aboriginals essays

Aboriginals essays Aboriginals are being incarcerated at increasingly higher numbers in proportion to the general population in the Canadian prison system. The factors that promote crime among aboriginal people are shaped by family backgrounds of poverty, school experiences, and exposure to violence, isolation from opportunities and low self-esteem related to experiences of racism. In the past aboriginal offenders were treated as a homogenous group, now things are moving toward culture and spirituality. Research suggests, that more focus should be placed on acknowledging differences among aboriginal offenders. There are two areas, not necessarily equivalent, which may distinguish aboriginal inmates - the degree and nature of involvement in crime, and the structural and cultural style of their lives (Wallace-Capretta, 1998). When profiling aboriginal inmates by their culture for purposes of designing treatment plans, three groups among thirty randomly selected aboriginal inmates were found. These groups were identified as "traditional", "bi-cultural" and "assimilated. The three groups were different with respect to language, community, time spent on the reserve, experience in society, exposure to traditional beliefs, mobility in younger years and self- identity (Waldram, 1992). Statistics are showing incarceration rates for Aboriginal adults are likely to increase in the future. Changes to the criminal justice system are needed that will lower the high rate of Aboriginal men, women and youth in prison. With incarceration on the rise and where there is little chance of rehabilitation, alternatives to prison sentences are being used. A big hurdle in justice when dealing with Aboriginals is the focus of punishment on the offender in the interest of society by daunting imprisonment, fines and, less often, forms of restitution and community service. Traditionally the goal of Aboriginal communities after an inciden...

Character changes in Macbeth

Character changes in Macbeth Essay In Shakespeares play Macbeth we see the main character, Macbeth changes from a well-regarded and loyal soldier of the Scottish king to a murderous tyrant. At the start of the play Macbeth is courageous, ambitious, superstitious and devoted to his wife. These characteristics are shown through the victory against the rebels, Macbeths trust in the witches and his letter to his wife. In the second half of the play Macbeth becomes cruel and treacherous, insecure and distant from Lady Macbeth. The events that show this change are the murders Macbeth commits, his voluntary return to the witches and his reaction to his wifes death. One of the first events of the play occurs when King Duncans army, led by Macbeth and Banquo defeat the rebels. Macbeth fought ferociously, risking his own life to save his country. King Duncan praises noble Macbeth. Macbeth is seen as a strong soldier who is loyal and courageous, a truly heroic figure. To Duncan he was the worthiest cousin; to the wounded sergea nt Valours minion; to Banquo, My noble partner. King Duncan cannot reward him enough for all he has done. More is thy due than more than all can pay. Macbeth is made Thane of Cawdor, but begins to be tempted by his own vaulting ambition to become king. Another characteristic of Macbeth is his striving ambition and curious nature, which leads him and his partner Banquo to the witches who give him a prophecy. Banquo realises that there must be a trick hidden in the witches prophecies but Macbeth refuses to accept that. Macbeth chooses to let the witches influence him, but Banquo does not. This event showed Macbeth was superstitious because he trusted the witches. The witches prophecies stroked the fires of his ambition to be king.Macbeth was also devoted to his wife. He told his wife everything and confided in her via a secret letter. Macbeth even called his wife my dearest partner of greatness. This proves the affection and trust he had in Lady Macbeth. Together they plot to murder D uncan. Lady Macbeth and Macbeths own ambition are influences of evil that Macbeth chooses to accept. Macbeth also accepts advice from his wife. Lady Macbeth gets him to act by appealing to his manhood and courage, When you durst do it more the man., showing Macbeth is morally weak. He is very hesitant about killing the king though, showing he has a conscience. However, Macbeth begins to act alone, and Lady Macbeth loses her control over him. He follows his murder of Duncan with the quick murder of the two sleepy grooms. Macbeth becomes cruel and treacherous; the voice of conscience within him is gone; he no longer hesitates to follow courses of evil: The very firstlings of my heart shall be The firstlings of my hand. He does not need to be urged to the deed in planning the murder of Banquo and of Fleance. Macbeth fears Banquo because he recognises in him a moral courage, which he lacked Banquo kept his bosom franchised and allegiance clear. Macbeth also believed the prophecy that Banquos descendants would become king. He had become obsessed with his own safety. Macbeths imagination and insecurity is shown when the ghost of Banquo appeared at the banquet. His degradation carries him to the level where he vents his savage frenzy upon the innocent heads of His Macduffs wife, his babes for no reason, but his savage determination to maintain t he throne. These murders show the insecurity that was present in Macbeth. READ: The Moment Of Truth: Happy Ending EssayMacbeth voluntarily and deliberately returns to the witches alone. This time he is more assertive towards them. He is not over awed and he demands to know if Banquos descendants will become kings. The witches deliberately mislead Macbeth but he believes them, showing his overconfidence. Later, Macbeth becomes distant and cold towards Lady Macbeth. Lady Macbeth can no longer control Macbeth, and after killing Duncan he begins to act alone. Macbeth even tells the doctor to cure her of her mental illness, and makes no effort himself to help cure her. When Lady Macbeth dies, Macbeth states She should have died hereafter. There would have been time for such a word. He hears the news of his wifes death and reacts nonchalant and unemotionally. But Macbeth is still a tragic hero because he reveals to us that he is suffering a living hell, without the blessing of sleep that knits up the ravelld sleave of care. His punishment is as great as his crimes. At the end Macbeth does not run away or kill himself. Although Macbeth knows that he is doomed, he fights Macduff to the end, showing he is still courageous and physically brave. Once the saviour of his country, a valiant cousin! a worthy gentleman, Macbeth became the dead butcher, allowing ambition to overcome the natural order of life. Bibliography:

Computer Games Improves motivation in Elementary School Math Research Paper

Computer Games Improves motivation in Elementary School Math - Research Paper Example According to Azevedo (2005), mathematics or math games are fun activities. They usually encourage motivation, call for deep thinking, require both chance and skills, and provide multiple approaches to problem solving. These games implement certain mathematical strategies and skills by leveraging the natural inclination of the student to play. The games can either be played by an individual, a small or large group; it can be cooperative and/or competitive (Azevedo, 2005). Mathematical games have been proved to have some rewarding impacts to students. Azevedo (2005) argues that games are usually part of after-school activities. Math games can provide the students with suitable contexts for developing both socially and mathematically. In addition, Shin, Sutherland, Norris & Soloway (2012) affirm that students can explore and discuss new strategies with their peers and use these strategies to solve and calculate mathematical problems. Furthermore, math games allow the students to partici pate at a level of their choice and build on their knowledge and understanding. There exists limited empirical literature that supports the hypothesis with most of those advocating for the technique being the game developers and investors, which makes the supporting results relatively biased (Guha & Leonard, 2002). Review of Literature There have been many studies showing how computer games find their place at the elementary school class and students. In order to support the hypothesis that computer games improve motivation in learning mathematics in elementary school, four studies from different sources are considered. The first study examined the practice of computer games in a 4th and 5th graders’ summer school math program. This study focused on the students’ motivation with computer games and learning environment based on such games and on how game-playing improved students’ math learning. This study indicated that using computer games in math is being more simplistic than commercial (Ke, 2008). Moreover, the findings of the study put emphasis on the task of designing appropriate activities that will be connected with computer games to enhance student motivation such as collaborative activities. The limitations occurred in the mentioned study show that this is a case study of one particular set of learning games with a small amount of students who were from the same school although being rather diverse in many characteristics such as gender, socio-economic status, math abilities, etc. There have to be exercised cautions when generalizing the study ?ndings to show the interaction between other types of games and student population of different characteristics. Coming back to our hypothesis, I can say that it is supported. Generally, this study showed that all participants were excited about the games they were offered to play. It means they were motivated to learn math by playing this computer game. The next study by Kebritchi, Hirumi & Bai (2010) examined the effect of 3-D games in the field of mathematics. The crucial questions that this study offered to examine were related to the effects 3-D computer games had on students' mathematics motivation and achievement. Furthermore, the

School of Arts - Referencing Essay Example | Topics and Well Written Essays - 1500 words

School of Arts - Referencing - Essay Example This is amongst other essentials that any good piece of writing can contain. Apart from recognizing the importance of someone else’s work, the writer also accepts and shows their knowledge of where the information comes from. This is coupled with the reader being able to discover the original sources that have been used and where to obtain them from if needed. A number of different referencing styles exist. These range from the Harvard, Chicago or APA style. Yet, there are certain aspects which are vital to any referencing style. The source has to be given in the essay. This means that the writer has to present the author and the date the work is produced within the essay. Thus, every time the writer uses the work produced by someone else they must ensure the name and date of the work is cited. Second, if any work has been presented as direct quotes then the author has to ensure that the page numbers of the work where it has been picked up from have been given. Thirdly, at the end of each assignment the writer has to create a list of bibliography or a works cited page which notes down all the names and sources that have been used in the essay. This list has to be presented in alphabetical order and must give the names of all the in-text citations given in the essay. Hence, any reference that is used has to appear in two places. These three rules are vital when presenting any essay which includes references and quotations from a variety of different sources. The referencing format is off little significance as these three rules apply to any work that contains sources.

Belonging Essay Example for Free

Belonging Essay An individuals perception of belonging is created with the passing of time and ones mixing within the world. This view is Represented in St Patricks College written by Peter Skrzynecki and Neighbours written by Tim Winton. Belonging is how one feels connected to people, places, communities within the world . St Patricks College looks at the unhappiness of a boy in high school, feeling out of place. Neighbours shows a young man’s emerging understanding of the culture diversity and generosity of the neighbours he once looked at with suspicion. The couple feels alienated and foreign in their own home and country. Ones culture influences the connection you have and feel to a place, such as the suburb and school in St Patricks College. St Patricks College is set in a Catholic school. â€Å"Our Lady† – reference to our lady lets the reader know it is a highly religious catholic school. â€Å"Over shadowed by the clouds† this suggests the statue face is not clear. Indirectly life for the boy is uncertain at school. The use of the word shadow symbolises a casting doubt in the boys school life. The narrator explains the boy doesn’t fit in, depicted in the simile â€Å"Feels like a foreign tourist† the boy feels excluded because of his Polish background both at school and around the town he lives in. The passing of 8 full years at this place and he still does not feel a serious connection to the suburb or the school. In Neighbours the couple feels disconnected to the town in which they move to. At first alienated,suspicious and foreign in their own home. They don’t feel that they belong in the neighbourhood even though it is a part of their country. The couple’s sense of belonging begins to grow as time passes through acceptance. The couple begin to fit in with the outsiders traditions and decide they love it. As time continues to pass the two cultures may have different opinions on the lifestyle of one another although they decide to accept this and gain a sense of generosity through the pregnancy of the Wife. The people a person grows up with (usually family) vastly influence how you connect to people within the world. In St Patricks College the son is expected to be a part of the Australian school and fit in with other children, just as he belongs with his family in his Polish home. There is a barrier to communication with the people at St Patricks College compared to he’s Polish influenced home as the boy is not familur with this culture and finds it difficult to connect and gain a sense of belonging within this social group. Since there is no connection to Poland in the school teaching, this then leaves the boy feeling isolated from everyone else as he doesn’t connect. This is represented in the quote â€Å"Mother enrolled me at St Pat’s with never a thought†. The boy and Mother have individual ideas about what it means to belong. Since the mother did not understand his lack of belonging, the boy felt forced to complete the â€Å"8 years† for the moth ers sake â€Å"Prayed that someday mother would be pleased†. This shows the change over time when the boy now relates to prayers. In neighbours, the couple are new to this town and feel that the migrants around them all connect yet even though this is their country they feel disconnected within their community due to the cultural diversity. The use of alliteration in spitting, shouted and screamed add to sense of â€Å"difference† and strangeness further alienates the young couple. The young couple establish smiling relationships ad exchange food and gifts and feel proud of their relationship they have built with the migrant neighbours. This depicts the way that with the passing of time, the couple learn and grow to belong to this community. As time passes the young mans final realisation shifts by finishing the short story with the perception of the goodness the migrant neighbours were trying to put upon the new couple within this new community. A persons community influences the connection they have with the world and in the passing of time. In St Patricks College, the boy does not find a connection to the school or the children in that community. The boys feelings over time do not change. An example is shown at the end of the poem â€Å"The darkness around me wasn’t for the best before i let my light shine†. The darkness refers to him not feeling a part of the school community and that this school was not the best choice for him. The use of irony in â€Å"Let my light shine† (the school motto) is shown to depict the fact that Peter can only achieve it when he has left the school community- when the boy leaves the school, he then can enjoy life. â€Å"I stuck pine needles into the motto† this act of rebellion and lack of regard gives us a sense of empathy as he does not belong nor accept this community. The young couple have cultural differences within the community. They find it difficult to connect to the migrant neighbours. This is shown throughout the short story as an unbroken and uncomfortable relationship exists for a while between the 2 parties. We realise the immigrants think the couple are odd, changing the perception of the reader slightly. Winton shows that there is a ‘difference’ on both sides which causes the alienation and isolation. In the quote â€Å"He watched in disgust as the little boy urinated in the street†. This refers to the diversity in the cultures which is carried throughout the neighbourhood. From this the couple do not gain an understanding nor a sense of belonging until they discover that they are warm and friendly yet live a lifestyle differently. Over time the couple begin to no longer feel foreign in their own home and gain a connection to their community. In conclusion, the close study St Patricks College and Neighbours show different perceptions of belonging and not belonging. Although through the passing of time and interaction within the world, both texts gain the concept of whether they belong to a certain place, persons or community.

Consumer Goods :: miscellaneous

Consumer Goods A few years ago I was walking around my old hometown, Portland, Oregon. I walked past a basketball court full of teens wearing Ambercrombie shirts and Nike shoes. "Bro, why don't you get some of these cool clothes, rather than that boring and odd shirt you have on? one of them said to me. "No, thanks. I like what I have on." I wasn't going to let them persuade me to waste my money on expensive popular clothing when I already liked what I was wearing. As you can see by my experience, many Americans, especially high school students, shop to "look cool" by wearing popular clothing. They emphasize wearing the right type of clothes. For instance, an adolescent clothing addict named Delia Cleveland believed "clothes made the woman and everything else was secondary" (193). Teenagers buy the right clothes so they'll be popular. In high schools today, many students are seen with an "Ambercrombie & Fitch" label or shirt bearing the name of the company. That's because they "repeatedly rank it near the top in terms of coolness." (Cave 199). By wearing the A&F clothes, people see them as "cool" and therefore respect them. However, it's not always about wearing a certain company's clothes to look cool; it can be about wearing the right color clothes or buying caps that show a logo of a sports team. Why do teenagers make such a big deal out of wearing the right kinds of clothes? A big reason is the fact that many of them go to rough high schools, so they have to wear the right type of clothes, because if they don't, they might get picked on. I have had many friends in this situation. This can make them get used to wearing popular clothing, and then they really start doing it, possibly even to show off their clothes. Luckily I've never had to go to high school (I was homeschooled), so I haven't had to go through with looking cool by wearing popular clothing. IN my opinion, clothes are clothes, and it doesn't make any difference what they look like. But in America today, often that's not the case. Another reason people buy what they buy is because the media influences them greatly, with symbols and rule-breaking strategies. On the telvision today I often see commercials influencing the viewer to buy a prodcut, one way or the other.

Alternative Energy Helps Decrease Consumption Of Oil Environmental Sciences Essay

For several centuries, people use rough oil in their mundane life. It is used in signifier of gasolene, Diesel fuel, or different industrial lubricators. From oil, it is able to make besides heat or electricity. For a long clip, the most seeable merchandises of petroleum oil used every twenty-four hours are fuels for autos. As the figure of people on Earth is increasing, more autos are used, more electricity must be produced, more heat must be generated. All these facts show how people are dependent on oil and its merchandises. As Miller explains in the book Living in the environment, 82 % of the universe used energy in 2004 came from unrenewable resources. 33 % of it came from oil ( Miller, 2007 ) . It is true that the oil militias are still sufficient. On the other manus, it is of import to understand that the ingestion of oil is increasing each twelvemonth and oil, as the unrenewable resource, will be one twenty-four hours wholly depleted. Therefore, today it is of import to seek for other options. Wind, Sun, and H2O can be considered the new energy beginnings, which can diminish the dependance on oil and other unrenewable resources. Wind energy is considered one of the cleanest and the longest used energy in universe. The primary signifiers of use of air current energy can be found in early history. As the web page Alterenery.org explicates, â€Å" The first known usage was in 5000 BC when people used canvass to voyage the Nile River. Persians had already been utilizing windmills for 400 old ages by 900 AD in order to pump H2O and swot grain. Windmills may hold even been developed in China before 1 Ad † ( Alterenergy, n.d. ) . Besides in many European states, for illustration in Slovakia, air current Millss had been used for different intent like chattering the flour. Today, air current energy has gained first topographic point in many European provinces. Harmonizing the information of European air current energy association, Germany is on the top of list of states which used air current energy at most. Germany reported 28777MW in the terminal of twelvemonth 2009. The 2nd topographic point belongs to Spai n with 19149MW. Merely to compare, Slovakia reached merely 3MW in the terminal of twelvemonth 2009. This figure is really low. In twelvemonth 2008, Austria had installed new 14MW of air current power which helped it to make 995MW in the terminal of twelvemonth 2009 ( EWEA, 2010a ) . As the beginning continues, aˆzA sum of 19,651 MW of new power capacity was constructed in the EU last twelvemonth [ 2008 ] . Out of this, 8,484 MW ( 43 % ) was wind power ; 6,932 MW ( 35 % ) gas ; 2,495 MW ( 13 % ) oil ; 762 ( 4 % ) MW coal and 473 ( 2 % ) MW hydro power capacity † ( EWEA, 2009b ) . Detailed information about air current energy for the old ages 2000 to 2008 is posted in Appendix A. As it was already mentioned, there several tools for coevals the electricity from air current energy. The most seeable are windmills, like those in Austria. There is besides aA new device called Magenn power air rotor system ( MARS ) . As the web page of alternate energy beginnings explains, this de vice is filled by He and rotates in horizontal degree. As the beginning continues, the He inside the device keeps MARS high about the land. This distance can be maximal 1000ft. The web page besides explains that thanks to Magnus consequence, MARS can remain at its topographic point. The electricity is produced when the air current goes throughout the particular unit in MARS, which starts to whirl. Then, thanks to a overseas telegram, the electricity is transited into aA transformer located on land ( AES, n.d.a ) . For better visual image of this drifting air turbine, see image 2, 3, 4, and 5 in Appendix A. As it is seeable from the images, this Magenn power air rotor system can be located practically anyplace. It can be used on little islands, where the conveyance of other sort of electricity is impossible or excessively dearly-won. This system can be applied besides in polar countries, where people have to utilize diesel generators. But this is non the lone advantage. As the AES ex plains, these turbines are non so dearly-won, are friendly to environment, and are more efficient than other systems. Ability of the MARS to run on higher velocity of air current compared to other air current turbines is the following difference advantage mentioned on the web page of AES. Another advantage is connected with the tallness in which this system operates. This system is non every bit seeable as classical air current turbines. Therefore, as AES explains, ocular and noise impacts on land are reduced. Mobility of this system can be considered another advantage. As AES expounds, in instance of some catastrophe, the system can be easy abjuring. Therefore, the system will non be damaged ( AES, n.d.c ) . But the best thing on this air current energy is that it does non hold negative impact on environment as oil or other beginnings of energy that pollute the Earth. All the mentioned facts and advantages of air current energy show that this beginning of energy can vie with oil or other unrenewable resources. Wind energy can be considered the replacement of rough oil or other unrenewable resources in field of bring forthing electricity. Solar energy is considered for a long clip cleanest a cheapest beginning of energy. Harmonizing to Solar energy industries association, the history of solar panels has started in 1820 when Henri Becquerel noticed so called photovoltaic consequence. First photovoltaic solar contraption bring forthing convenient sum of electricity was created in 1954 ( SEIA, n.d. ) . Solar energy is practically unlimited because of life rhythm of the Sun. As the web page solarviews.com explains, Sun has still sufficient sum of fuel, dwelling of H and He, for about following five billion old ages ( Solarviews, n.d. ) . Energy from Sun comes on Earth in signifier of visible radiation and heat. Both of them are created during thermonuclear mergers in a nucleus of Sun. Radioactive Sun air current is a secondary merchandise of this merger. Earth is, fortuitously, protected from this radioactive air current thanks to magnetosphere, which works like a shelter. For better imaginativeness, see picture 1 in Appe ndix B. In country of poles, this solar air current is seeable as a phenomenon called aurora borealis. Use of solar energy is really popular for several old ages. Besides tonss of people have started to put in solar panels on their houses. In the last old ages, photovoltaic systems started to hold taking place in this industry. As a web page toolbase.org explains, â€Å" Photovoltaic systems use solar electric panels to straight change over the Sun ‘s energy into electricity † ( Toolbase, n.d. ) . As the beginning continues, there are different sizes of the photovoltaic device. As it is written on the mentioned web page, there exist two types of photovoltaic panels: stiff and flexible. Harmonizing to the beginning, â€Å" stiff PV [ photovoltaic system ] faculties typically have a glass screen while the flexible faculties have a really lasting movie screen. Both types of PV faculty building have been strictly tested to last storm and hail harm and are immune to debasem ent from ultra-violet beams † ( Toolbase, n.d. ) . As the research is in advancement, new possibilities are invented. Merely recently, as it was published on web page sciencedaily.com, scientists form the Freiburg Materials Research Center and Department of Microsystems Engineering invented new intercrossed solar cell that will increase the efficiency of solar cells. As the mentioned web page explains, â€Å" photoactive bed of intercrossed solar cells consists of a mixture of inorganic nanoparticles and an organic polymer † ( Albert-Ludwigs-Universitat Freiburg, 2010 ) . As the beginning continues, â€Å" it is theoretically possible to use the method developed by the research workers to many nanoparticles, [ so ] this discovery opens up new potency for increasing the efficiency of this type of solar cell even further † ( Albert-Ludwigs-Universitat Freiburg, 2010 ) . For elaborate position of this new engineering, see image 2 and 3 in Appendix B. These solar sys tems have batch of advantages. The biggest advantage is that it does non harm environment because it is clear manner of production of electricity. As it was mentioned in the beginning of the paragraph, solar energy is unlimited, which is the following advantage of this system. As the web page of AES explains, this system â€Å" works best in the sunniest, frequently the poorest, parts of the universe † ( AES, n.d.d ) . This can guarantee these states independency in a field of demand for electricity. As the beginning continues, solar energy is safe and flexible ( AES, n.d.d ) . Solar energy can besides assist to bring forth heat or warm up the H2O needed for families or houses. This vision is portion of ecohouses. The mentioned facts confirm that solar energy has great possible and future, and for certain, it will assist to cut down humanA?s dependance on oil in field of bring forthing electricity and heat. Water energy is besides considered one of the hereafter energy beginnings because of its advantages. Water has large power, particularly its flow. This fact is a basic premise for utilizing H2O in hydro power workss. As the web page U.S. geological study explains, â€Å" hydroelectric works uses falling H2O to turn the turbine † ( USGS, n.d. ) . As the beginning continues, â€Å" a hydraulic turbine converts the energy of fluxing H2O into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity † ( USGS, n.d. ) . For more inside informations, see image 1 and 2 in Appendix C. This type of bring forthing electricity is really common in the universe. As web page of Slovenske elektrarne explains, besides Slovakia has several hydro power workss in H2O impound like Orava, Nosice, or Liptovska Mara, and pumped storage hydro workss located for illustration in Liptovka Mara or A?ierny Vah ( Slovenske elektrarne, n.d. ) . Not merely the H2O in rivers but besides H2O in seas can be used for bring forthing electricity. In the instance of sea H2O, tidal power is utilised. Harmonizing to company Verdant power, â€Å" free Flow Kinetic Hydropower System uses three-bladed, horizontal-axis turbines deployed underwater to bring forth clean renewable energy from tidal and river currents † ( Verdant power, n.d. ) . As the beginning continues, it â€Å" is installed to the full submerged and operates automatically and unseeable from shore. The system does non necessitate dikes or other major civil plant, and does non airt the natural flow of the H2O † ( Verdant power, n.d. ) . For elaborate position, see image 3 and 4 in Appendix C. This tidal power is really utile, because, thanks to Moon and Sun, the H2O is moved without any human aid. This means that this system is non so dearly-won. As the AES explains, this system has more other advantages. The best is that this system is ecological and environmental friendly. As the beginning continues, this system is besides cheaper than some device utilizing tidal power built on seashore. The system is safe and can be placed practically anyplace under the H2O ( AES, n.d.e ) . The mentioned advantages show that H2O energy can efficaciously bring forth electricity. Therefore, it can assist to cut down the usage of petroleum oil and other unrenewable resource. Although all the mentioned beginnings of energy seem great, all of them have some disadvantages. High initial costs are the common disadvantages for all of them. The 2nd disadvantages common for all the mentioned energy beginnings is non really high efficiency. These beginnings still can non bring forth the needful sum of electricity or heat that can be produce from oil or other unrenewable resources. It is true that these â€Å" green † beginnings of energies are non on the same degree as unrenewable resources, but as the development improve, besides these engineerings are improved. Therefore, the better efficiency of these alternate energy beginnings is merely a inquiry of clip. These new energy beginnings can assist to diminish the dependance on oil. In the hereafter, for certain they will be use as primary beginnings of energy. In the hereafter, air current, Sun, and H2O energy can replace unrenewable resources for production of electricity. It is true that batch of scientific research is needed for bettering the systems, but there is large potency. It is merely up to the authoritiess to back up the research in a field of alternate beginnings of energy. In the hereafter, the puting money will convey cleaner environment and independency from unrenewable resources. It is a great vision, and it is merely up to human race how it will work with these new engineerings.

An integrated critique of kozols and dawkins Essay

AN INTEGRATED CRITIQUE OF KOZOL’S AND DAWKIN INTRODUCTION Richard Dawkins was born on March 26, in 1941. He is an ethnologist, an evolutionarily biologists and a popular writer in science. He also holds the Simonyi Chair, which is designed to promote the understanding of science to public at Oxford University. The first time Dawkins come into the limelight and became popular was after writing his book ‘The Selfish Gene’ in 1976. This book introduced the term ‘meme’ and consequently helped discover memetics fields. It also made ‘gene-centered view of evolution’ popular. Around 1982, he made significant contributions toward evolution science. THE SELFISH GENE BY RICHARD DAWKINS Richard Dawkin’s ‘The selfish Gene’ was a very popular reading and to some extent controversial on evolution. The book elaborates and goes deeper to discuss more about the theory of William’s first ever book to write ‘Adaptation and Natural Selection’. The theory discussed on this book is principal to William’s book. Richard introduced, ‘Selfish Gene’ to provoke and express his views on gene’s evolution. This view states that evolution acts on genes and when we select some organisms or a population, this selection is normally based on the type of genes. According to his book, an organism must evolve since it is the only way of maximizing its ‘inclusive fitness’, which refers to the total number of the genes which are transmitted globally, rather than the genes passed on by a particular individual. Consequently, a population tends to learn towards ‘Evolutionarily Stable Strategy’. (Richard, 1990) This ‘selfish gene’ came up with the term ‘meme’. ‘Meme refers to a single unit of human’s culture evolution which is analogous to genes. It suggests that this is a ‘selfish’ replication of human genes, and it can affect the culture of human in a totally difference sense. There is no doubt that ‘memetics’ evoked a discussion of meme since he published his book. ‘Meme’ is cultural information units, which can be transferred from one mind to another. Examples of memes are tunes, clothes fashion, catch phrases, pot making or building arches. â€Å"Meme’ is properly defined in the theory of memetic, which is comprised of information on culture in a unit theory; how evolution of culture or diffusion is blocked, how it propagates form mind to mind and the way a gene propagates from one person or from an organism to an organism. Where memes are multiple, they propagate as â€Å"memeplexes’. Meme complexes act as cooperative groups. (Richard, 1990) A ‘gene’ on the other hand, is a region that can be located and has a sequence called ‘genomic sequence. This corresponds to an inheritance unit that is closely associated with regions that play a regulatory function, the regions, which are transcribed, and other regions with functional sequence. The phenotype and physical development of organisms is believed to be productivity of genes, which interact among themselves and with their environment. Genes are generally inheritance units. A gene generally defines human or organism’s characteristic and the functionality of potential products. Genes do not define products but rather they contain regions. Eukaryotic organisms contain regions, which do not have coding regions and are called introns. These are taken away from RNA, which acts as the messenger in a process referred to as ‘splicing’. Exons are regions, which encode the products of gene. A total number of genes, which make a set, is called ‘genome’. The genome size of an organism is usually low in prokaryotes, which come in base pairs and the gene’s numbers. The theorists of meme state that meme evolve through natural selection, this is similar to biological evolution of Darwin through competition, inheritance, variation and mutation. THE ROLE OF CULTURAL EVOLUTION Cultural evolution and socio-evolution fall under the umbrella called ‘socio-cultural evolution’. It describes how societies and cultures have come into being over time. Cultural theories provide us with models to enhance our understanding on the relationship between our social structure, technologies and society values; and give reasons why and how they change gradually. They change to a degree to which specific mechanisms of social change are described. (Richard 1990) Around 20th and 19th century, there were approaches, which were aimed to give models for humankind evolution. The argument is that the social development of different societies is not in the same stage. The recent approaches of the 20th century emphasize on changes, which are specific to a society as an individual and turn down social progress and directional change. Archeologists and anthropologists use modern theories as the framework of socio-cultural evolution. Sociobiology and neo-evolutionism are some of modern approaches employed to cultural evolution. Richard Dawkins, the ethnologist discovered ‘meme’. According to his book, â€Å"TheSelfish Gene’ 1976, likened human’s cultural evolution unit to a gene. His argument was that replication happens in the culture, through in a different sense. Dawkins contends that meme, which resides in the brain represents units of information and it is the replicator that controls mutation in cultural evolution of humans. This forms a pattern, which has the power to influence surroundings, that is, it can propagate and possesses causal agency. However, his theory caused a heated debate among biologists, sociologists and scientists from other disciplines. Dawkins failed to given adequate explanation about the information units replicates, in organism’s brain, how it can control the behaviour of a human being and finally culture. It is apparent that it was not Dawkins intention to give the theory of memetics. Comprehensively in the selfish gene, he coined the word meme in a kind of speculative spirit. In the same sense, ‘unit of information was given different definitions by different scientists. (Richard 1990). MEME AND EDUCATION It is not entirely impossible though it is hard to debate the subject matter of the functions of emotions in education system if we are lacking the right words to sufficiently discuss the topic. This is the scenario when we reach a point of discussing the functional role of ‘emotional intelligence’ because it has got to do with the needs of our younger brothers and sisters as well as great grandchildren and become stochastically and mathematically proficient so as they can exist and fit in the competition which is characterized by technological advancement. Many educators are failing because they lack words such as ‘eipiphiny’ and ‘mehme’ and hence do not have words, which play an important role of ‘emotional intelligence,’ and how it relates to stochastic and mathematical literacy sufficiently and appropriately address attempts that can be made. The outcome is a system of education that is believed to be failing. If the kids can experience and feel eipiphinies and MEHMES, kids will definitely love maths, and see its relevance to their lives daily. It also contributes a feeling of self-confident. The key here is to create the terms mehme and eipiphiny. Introduction of mehme and eipiphiny may have a positive effect if incorporated in the meme selection process.

Depression During the Depression essays

Depression During the Depression essays Of Mice and Men, by John Steinbeck, is an enthralling novella which depicts the difficult and lonely lives many came face to face with during the Depression. Lack of work, money, and companionship are not only issues that appear in the Depression, but in the hard, problematic lives of Crooks, Curleys wife, and Candy, all characters in this story. Crooks, an African American ranch hand, finds his life on the ranch to be an extremely difficult and unhappy one. Alienated by his race and handicap, Crooks has not one friend in the world. Also set apart from others by his handicap is Candy, an old and unhappy worker on the ranch. After losing his only true companion, an old and feeble dog, Candy finds himself as lonesome as ever. Curleys wife, the only female living on the ranch, dreams of a better life, in which she feels loved and appreciated by those around her. While striving for happier and better lives, many characters portray the feelings of loneliness and desperation. Throughout th e novella, the theme of loneliness is evident in Crooks, Curleys wifes, and Candys lives. Crooks faces the feeling of loneliness many times during the story. He is often alienated because of his race, causing him to feel extremely alone. Aside from being the only African American on the ranch, Crooks must live with the knowledge that there is only one other African American family in all of Salinas. However, by masking his unhappiness with pride, Crooks eliminates any possibility that he may appear weak or vulnerable to those around him. Aside from being estranged by his race, Crooks is separated from others on the ranch by his handicap. Acquiring his name from his crooked back, Crooks not only looks different from others, but is labeled because of it. Although he does not speak of his handicap and its many faults, Crooks views it as yet another reason for him to feel ostracized when compared to the perfect&quo...

Ethical treatment of native americans Essay Example | Topics and Well Written Essays - 1000 words

Ethical treatment of native americans - Essay Example Native Americans never understood the European ideology. They did not have a clue the reason the Europeans were able to fight for land. Native Americans believed that death makes one the owner of nothing. They also failed to understand the way one individual or group could â€Å"own† land because were not capable of owning the sky. It is this peaceful ideology of Native Americans that made them be the best target to the treaties and the land agreements gave by the United States government. The Indian Removal Bill was passed by the Congress in 1828, and it compelled the Indians living in the south to move to a new place or would be subjected to the state laws. The North strongly opposed this bill while the South supported it. The Bill that barely passed the Senate and House was a popular distribution support of the fertile Indian lands. The U.S. government was attracted into the Indians relocation since it provided the southern farmers with more farmland. As far as the practica l relocation went on, the task of relocating the Indians was in the hands of the Army, who by then often signed the work off to contractors. Attempts by the Indians at conforming were pointless and crushed quickly. The time Cherokees Americanized their tribe and adopted â€Å"the American Way†, the Georgia State quickly went in militias, forcing them on their way. Many Indians tribes fought for the U.S. against their fellow Indian brothers in return for the promise that the government to them that they would be protected against the removal.

Impact of Operations Decisions on Corporate Social Responsibility Essay

Impact of Operations Decisions on Corporate Social Responsibility - Essay Example The operations of the business need to be inline with the goal of CSR in order to achieve greater efficiency and productivity (Frederick, 2006). In operations, CSR effects from the input to the output processes; Input to process, for example, is when the organizations uses solar panel energy for their factory like sun chips. OR may be they are using an eco friendly form of transportation (bio diesel trucks). Outputs to the process are achieved by reducing emission or carbon footprint. A company which is changing into an environmental friendly raw materials support action against child labor is also fulfilling its social responsibility. A company emphasizing on green marketing and recycling is also looking towards fulfilling its environmental responsibilities. Decisions made in the operations, thus highly affect the way a company fulfills its social and environmental responsibilities (Slack, 2006). 1. The integration of global supply chains has created more reputation risks than business or financial risk for the suppliers. In order to cater to the global environment and maintain efficient supply chains, there is now a need for the supply chain to fulfill the corporate, social and environmental responsibility by keeping the suppliers well-informed, assuring that the customers are getting the right product quality, ensure proper working conditions throughout the supply chain and not exploiting the labor working conditions. 2. Life cycle analysis is a key operation that supports CSR efforts. Through life cycle analysis, organizations can assess what amount of energy and resources are used and also the emissions and waste generated can be estimated and continuous improvements in the environmental management system and pollution prevention programs can be made. 3. Similarly, establishing precise and clear codes of conduct related to the environmental and social responsibility of the company and employees assist in closely achieving the goal of fulfilling CSR. Codes of labor unions and working conditions should also be designed. There are a number of organizations that are working towards fulfilling their social and environmental responsibility through devising certain strategies and customizing their operations and including the aspect of CSR in their operations. There are organizations that produce separate CSR reports like the annual financial reports to demonstrate their efforts towards CSR. Shell has been discovering the capture and utilization of carbon dioxide to alleviate the effect of greenhouse gas emissions. Shell has also continued education and development plans with various institutions. Abbot Laboratories has always worked towards CSR by providing quality health care, investing in education programs, health and safety programs and environment improving initiatives. Whirlpool with the combine efforts of Habitat for Humanity, donated a refrigerator and a range to every Habitat home. Basically, Whirlpool emphasized their dedication, loyalty, philanthropy and sustainability on its website and they also highlighted their membership to the Dow Jones Sustainability World Index. Instead of making their own sustainability report, Whirlpool