Wednesday, May 20, 2020
Early Italian Renaissance Art Florentine vs. Sienese Art
During the thirteenth and fourteenth centuries, a transformation occurred in Italy with respect to society, economics, politics, and religion. One of the major factors that led to such a change was the shift from a farming culture to a culture of industry dominated by merchants. This led to an urban economy, the expansion of cities, and the alteration of government to accommodate the growing population. In addition, Christian sects such as the Franciscans and the Dominicans began to form, advocating new religious philosophies involving bringing faith to the masses. This combination of reform in the economy and in organized religion brought about an increase in the production of art. The creation of artworks became an esteemed industry, andâ⬠¦show more contentâ⬠¦In terms of subject matter, both works are visual depictions of the crucifixion of Jesus Christ. In each painting, Christ is the central figure, surrounded by two groups of figures. On the left, a group of women that i ncludes the Virgin Mary mourns over the dead body of Christ, while on the right is a group of soldiers and other lamenters. Both works feature a rocky landscape on which the figures are positioned. Encircling Christ are several angels whose gestures of lamentation echo those of the figures below. Highlighting the severity of each scene is the blood that pours from Jesus wounds. The blood from his feet drips onto human bones that are embedded in the rocky terrain below. The skull serves as a memento mori, or a reminder of death, an idea that has been repeated in several other depictions of Christs crucifixion. Because Duccios work is a triptych, beautifully articulated figures have been added to the wings of the piece and above Christ himself. On the left wing, illustrated as a bishop, is Saint Nicholas, a religious figure known for secret gift-giving and working miracles. On the right is Saint Gregory (also Pope Gregory I), a monastic pope known as the Doctor of the Church. Above the crucifixion scene is a representation of the risen Christ, flanked by two angels. This could serve as a reminder that eternal life exists after
Wednesday, May 6, 2020
PLAYWORK â⬠WORKING WITH CHILDREN - 1935 Words
Assignment 310 ââ¬â Understand Children and Young Peopleââ¬â¢s Self-Directed Play Task A ââ¬â Briefing Notes 1. Explain the characteristics of freely chosen, self directed play Freely chosen play is where children are able to choose what they want to do Personally directed play is where children will choose how they want to do what they have chosen to play. Intrinsically motivated is why children choose why they choose certain types of play. Goalless means that children will play for no particular reason in terms of where goals or rewards are concerned. 2 . Explain the importance of observing and analysing childrenââ¬â¢s and young peopleââ¬â¢s play. Through observing a child, it helps you to understand and be aware of the childââ¬â¢s interestsâ⬠¦show more contentâ⬠¦7- Explain the concept of acceptable and unacceptable risk in the context of different play types. The concept of acceptable and unacceptable risk are, a child learning to jump higher and higher from a tree, this is an acceptable risk as the child is learning what their limitations and boundaries are. Whereas an unacceptable risk would be two children sword fighting as normally this gets out of hand and can turn serious. 8. Evaluate different approaches to managing risk during children and young peoples play. An approach to managing risk could be to talk to those children involved with e.g. play fighting and if they got too carried away I would stop them from playing together. Another approach would be to provide crash mats if children are playing on an indoor climbing frame, I would place them underneath to steady their fall so they donââ¬â¢t injure themselves too badly. 9. Explain the value of enabling children and young people to manage risk for themselves. The value of enabling children and young people to manage risk for themselves is to get the child to push their own limits i.e. if they were playing on a climbing frame, they would know how high to climb or jump from the climbing frame. 10. Explain how play work organisations seek to balance the health, safety and security of the play environment with children and young peopleââ¬â¢s need for stimulation, risk and challenge. A play work provision
Cipp Model of Evaluating a Curriculum Free Essays
CIPP Model of Evaluation The CIPP model was developed by Stufflebeam (1983) to evaluate curriculums through Context, Input, Process, and Product. The Context defines the operation within which the curriculum will be delivered. It determines the specific characteristics of the learners. We will write a custom essay sample on Cipp Model of Evaluating a Curriculum or any similar topic only for you Order Now Most importantly, it helps to establish a rationale for the determination of the curriculum objectives. In evaluation the context is used to define the environment relevant to the curriculum, describing the actual and intended conditions of the program, identifying unmet needs, and diagnosing barriers that prevent needs from being met. Input identifies and assesses the capabilities, strategies, and designs available for implementing the curriculum as related to the curriculumââ¬â¢s objectives. It determines what internal resources are needed to enable achievement of the objectives and to search for external resources when required. Also, the input phase considers the cost to implement the curriculum. In evaluation the input determines to what extent available resources were used to achieve the curriculum objectives. Process identifies the procedural design that will be used to implement the curriculum. The curriculum objectives are translated in specific activities that constitute the instructional design. In evaluation the process is used to identify deficiencies in the procedural design or in the implementation of the curriculum, i. e. , what actually took place during instruction. To provide information necessary to make modifications to the implementation strategies used during instruction. Product defines the measurable outcomes of the curriculum both during and at the completion of instruction. These outcomes are directly related to the curriculum objectives. In evaluation the product is used to compare actual outcomes against a standard of what is acceptable to make judgments to continue, terminate, modify, or refocus an activity. Evaluation of the Primary Science Curriculum (Levels Infants-Standard5) using the CIPP Model. This curriculum is sequenced into six (6) strands per level of the seven (7) syllabi in which it aids teachers in producing a lesson which helps pupils to develop important concepts in primary science. They help the pupil develop a sound understanding of the living and material world. The strands are: 1) Living things 2) Ecosystems 3) Matter and Materials ) Structures and Mechanisms 5) Energy 6) Earth and Space Context The relation of these courses to the other courses from level infants to standard 5 is the dept in which the topics have evolved in order for the students to gain a deeper understanding of the scientific method and broaden their minds. It is time adequate because it is spread throughout the three terms a nd is continued to a higher extent every level change. The critical/ important external factor is the ministry of education in which they develop the curriculum to host particular outcomes specific for the exams which follow these lessons at the end of each term. The courses can be integrated into each other for students to grasp knowledge of the methods used in understanding science as well as some of the courses implementing more hands on activities to further the learning process of each student. The links between the courses and research/extension activities are grounds in which the students gain more understanding of each topic through a combination of the new information to the already learnt knowledge from ideas like experiments and projects which help each student understand the content of the course. The course is needed for the students to develop skills in inquiry and the scientific method of investigation to boost the capacity of their learning abilities and will be very useful in society as employers are in need of employees with the ability to think critically and problem solve through the scientific method of investigation. Inputs The students enter with the ability of competence, curiosity, understanding, creativity, and sensitivity in the event of new knowledge within the science program. The learning styles of each student will differ but from the activities preformed by the teacher and fellow students to further understand the content the students will grasp the new information than if it were just ââ¬Å"wrote learningâ⬠. The students become motivated when activities are introduced to the lesson. Some students may live in homes where they are not able to get information for projects which pertain to the lesson and the teachers make arrangements to accommodate these students. The studentââ¬â¢s existing knowledge is that of life experience and when they are explained in class the students not have the capability to take the new knowledge and assimilate it with the old knowledge to form new schemes. The aims of the lessons are suitable to the levels in which they are specifically proposed. The objectives, specific to the lesson whether it be senses or space and time or enquiries, are derived from and complement these aims effectively. The course is very clearly defined and the knowledge skills and attitudes match each studentââ¬â¢s ability to cope with the content of the lesson. The content of the lesson is appropriate to the age group in which it will be taught and is relevant to real life situations and experiences which makes it easier for the students to develop problem solving skills. The resources and equipment needed will be to further impart knowledge on the students such as field trips, charts, pictures, and experiments. The teachers and the students each have the specific texts books are the ministry provides these books for the schools. The teachers should have the ability to develop new methods in which to teach these lessons to the students as it centers on discovery by the students guided by the teachers. The time available is very different compared to the workload that must be done to accomplish the tasks set forward by the aims and objectives as the preparation for the lesson takes more time that other lessons due to the fact that the teach now has to facilitate and guide the learning rather than teach the content. Process The workload of students is now broaden as the students have more to accomplish on their own with the other subject areas to take into consideration as these science lessons require more from students. Students will participate in these types of lessons more than the others because it centers on students discovering their potential to investigate and acquire new information on their own with guidance from their teachers. There are little to no problems related to teaching and learning. Also there is an effective two way communication in which the teachers as specific question to arrive at the answer that facilitate critical thinking and problem solving in each student. The students use the knowledge transferred to them to further their understanding of the real world and apply this knowledge to new situations that arise. The students have no issues with using/applying/analyzing the knowledge and skills being learnt as they understand that it is present in everyday experiences. The teaching and learning process is continuously evaluated in the form of activities and written assignments such as projects and portfolios. The teachings of these lessons are not affected by practical/institutional problems because the teachers teach to one particular syllabus which can fit into any program whether different in terms of culture or religion. The students and teachers need to be very understanding to each student for the duration of imparting knowledge as it develops interpersonal skills. The discipline is maintained by the teacher who asserts the time in which each student must speak and quickly disciplines while teaching the class. Unknown to the class the teacher controls the level of noise through transitional methods which grasp the attention of each student. Product At the end of each term an examination is conducted to evaluate the content taught during the course. There is no information on the final assessment of the science curriculum but there are assessments at the end of each lesson. The assessments of the lessons are designed toward the KSA (Knowledge, Skills, and Attitudes) of each student towards the content of the lesson. The KSA after a course was reported as improved as each child developed new skills in which they can process new information and investigate new ways in which to respond to questions. Students use what they have learnt to develop new skills in the simple processes like play. Each student has developed an understanding of the overall experience during each lesson and has developed new skills of deduction. The main lessons learned were to stimulate curiosity and creativity, develop competence in the use of knowledge and scientific method, and develop a critical awareness of the role of science in everyday living. The official report is done and sent to the ministry to further evaluate the determine the effectiveness of the curriculum and to alter what may be needed to change. Teachers whom have the ability to successfully teach the science curriculum will have an added merit to their reputation and the ministry will see no need to change the curriculum while if there were more teachers that have failed to effectively teach the science curriculum the ministry will reevaluate the content make amendments to the curriculum. How to cite Cipp Model of Evaluating a Curriculum, Papers
Thursday, April 23, 2020
The Plant Cell Essay Paper Example For Students
The Plant Cell Essay Paper Cell WallSize: Around 1? Basic Function:* Hold the shape of the cell. * Strengthen the cell. Covering the cell membrane of the plant cell, there is the cell wall. The cell wall is composed of two layers of rigid, hard cellulose embedded in compounds like pectin and lignin. Pores in the cell wall allow molecules to pass through. The cell wall has two parts. The primary cell wall is formed during the growth of the cell. After the cell has stopped growing, a secondary cell wall forms. This secondary wall is made of lignin and cellulose, woven together tightly, to prevent further growth and to form and strong protective barrier. We will write a custom essay on The Plant Cell Paper specifically for you for only $16.38 $13.9/page Order now CytoplasmSize: UnmeasurableBasic Function:* Helps dissolve waste products* Creates a medium for vesicles to travel through* Aids in cell metabolism* Serves as a home for the cytoskeleton. The cytoplasm is the jelly-like material that makes up much of the cell. It is 80% water and usually clear in color. It also contains many salts. The liquid portion is referred to as cytosol. In fact, cytoplasm means cell substance. The cytoplasm is also the home of the cytoskeleton, a network ofcytoplasmic filaments that are responsible for the movement of the cell. The cytoplasm is constantly moving and churning due to cytoplasmic streaming. Golgi ApparatusSize: Between 2 and 3?Basic Function:* Serves as processing center for cell. * Packages and processes new proteins. * Prepares proteins for secretion or storage. The Golgi Apparatus is a series of stacked membranes in the cytoplasm that packages proteins for secretion or storage in vesicles. Inside the membranes are sacs of fluid or gel-like substances. The Golgi Apparatus takes proteins in transport sacs from the endoplasmic reticulum and sends it through a series of these membranes. The proteins are then modified as they pass from membrane to membrane. After the vesicle of proteins has finished its trip through the Golgi Apparatus, it buds off the organelle in a Golgi sac, ready to be stored or transported to other parts of the body. Cell MembraneSize: 7 to 8 NM (nanometers)Basic Function:* Controls what enters and exits the cell. * Separates cell from outer environment. On the outside of all cells, there is a layer of protein and lipid (fat) called the cell membrane or the plasma membrane. This membrane is found in ALL cells. The membrane is selectively permeable, meaning it allows some molecules to enter and some not to. The membrane allows molecules in through two forms of transport, active and passive. Passive transport consists of simple diffusion through the pores in the membrane or carrier molecules. Active transport consists of endocytosis, exocytosis, and the sodium-potassium pump. The membrane also protects the cell from the outside environment, keeping the cytoplasm and its organelles in, and all of the stuff outside out. MitochondriaSize: 2 to 3 ?mBasic Function:* Serves as respiration center for cell. * Makes energy for the cell. Floating inside the cytoplasm are a series of fairly large organelles called Mitochondria. These organelles, the size of some bacteria, serve as the cells respiration centers, the place where energy for the cell is produced. Since the Mitochondria serves as a center for energy production, there are varying numbers of mitochondria in different cells. Muscles have many mitochondria due to the amount of energy they need, but skin cells have very few. The mitochondria (singular: mitochondrion) have two membranes. The outer membrane protects the organelle, and the inner membrane is folded into a series cristae or long folds. Endoplasmic ReticulumSize: Highly variableBasic Function:* Serves as transportation system for cell. .uf79f1476c27e3ce4a9e64a3404931e71 , .uf79f1476c27e3ce4a9e64a3404931e71 .postImageUrl , .uf79f1476c27e3ce4a9e64a3404931e71 .centered-text-area { min-height: 80px; position: relative; } .uf79f1476c27e3ce4a9e64a3404931e71 , .uf79f1476c27e3ce4a9e64a3404931e71:hover , .uf79f1476c27e3ce4a9e64a3404931e71:visited , .uf79f1476c27e3ce4a9e64a3404931e71:active { border:0!important; } .uf79f1476c27e3ce4a9e64a3404931e71 .clearfix:after { content: ""; display: table; clear: both; } .uf79f1476c27e3ce4a9e64a3404931e71 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uf79f1476c27e3ce4a9e64a3404931e71:active , .uf79f1476c27e3ce4a9e64a3404931e71:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uf79f1476c27e3ce4a9e64a3404931e71 .centered-text-area { width: 100%; position: relative ; } .uf79f1476c27e3ce4a9e64a3404931e71 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uf79f1476c27e3ce4a9e64a3404931e71 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uf79f1476c27e3ce4a9e64a3404931e71 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uf79f1476c27e3ce4a9e64a3404931e71:hover .ctaButton { background-color: #34495E!important; } .uf79f1476c27e3ce4a9e64a3404931e71 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uf79f1476c27e3ce4a9e64a3404931e71 .uf79f1476c27e3ce4a9e64a3404931e71-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uf79f1476c27e3ce4a9e64a3404931e71:after { content: ""; display: block; clear: both; } READ: Drug Abuse Essay* Moves proteins and vesicles around cell. The Rough Endoplasmic Reticulum (or ER) serves as a home for the ribosomes of a cell and as a highway for the cells proteins to be transported on. Being close to the ribosomes allows for the quick transfer of proteins from them to the rest of the cell. This highway is composed of interconnected membranes and vesicles. The process of transporting these newly created proteins is critical to the cell, and is required for furthur survival. The ER is very closely associated with the Golgi Apparatus. VacuoleSize: Varies from 10+? to quite small. Basic Function:* Serves as large storage centers for cell. * Hold water and many nutrientsInside the cell, surrounded by the cytoplasm, is the vacuole. In a plant, the vacuole acts as an extremely large storage area, and serves as a control for the turgor pressure in the cell. The vacuoles that perform the latter are called contracile vacuoles. They take on excess water and then squeeze it out of the cell to prevent cytolysis. The other task of the vacuole is also very important. It stores enzymes and toxic wastes that cannot be stored anywhere else in the cell. Usually, there is only one vacuole per plant cell, and it can take up to nearly 90% of the cells total volume.
Tuesday, March 17, 2020
16 Classic Russian Jokes
16 Classic Russian Jokes Russian humor can be difficult to understand even if you speak fluent Russian. This is often because many Russian jokes play on cultural stereotypes, political events, popular culture, and Soviet-time movies. Russian jokes are called à °Ã ½Ã µÃ ºÃ ´Ã ¾Ã'â and have a unique history. The first à °Ã ½Ã µÃ ºÃ ´Ã ¾Ã'âÃ'â¹ came to Russia through the European tradition of telling interesting, often funny stories. They were popular in the aristocratic circles and eventually developed into the classic joke similar to those in the West. However, these jokes took on a very political slant during the 70 years of the Soviet era. This unique perspective allowed for the development of an unusual, specific Russian humor characterized by its themes of political or cultural relevance. Soviet Jokes About Political Leaders Imgorthand / Getty Images Soviet political leaders provided a lot of material for new jokes, especially Stalin, Brezhnev, and Khrushchev, due to their odd or funny behavior as well as the paradoxical and claustrophobic nature of the Soviet life. 1.Thats enough of messing around, said Brezhnev, gluing his eyebrows under his nose. 2. Brezhnev is speaking at a party meeting. Who said that I can only speak when I have the speech in front of me? Ha, dash, ha, dash, ha, dash. 3. - Do you have a hobby, Leonid Ilyich?- Of course! I collect jokes about myself.- Have you got many?- Two and a half labor camps already! Jokes About Everyday Soviet Life Life was difficult in the Soviet Union, with stores often displaying empty shelves and politics generating a high level of stress and suspicion. People were painfully aware of the lack of things that were considered completely ordinary abroad. All production was done within the country and everything was grey and clunky compared to what was being produced in the West. People responded by coming up with jokes that played on the contrast between life in the Soviet Union and life elsewhere. 4. Two cassette players meet up. One is Japanese, the other is Soviet-made. The Soviet one says:- Is it true that your owner has bought you a new cassette?- Yeah.- Can I have a chew? 5. - What would you do if they opened the borders?- I would climb a tree.- Why?- So I dont get killed in the stampede. Jokes About Contemporary Life in Russia 6. They caught Bin Laden. Washed him, gave him a haircut, turned out it was Berezovsky. 7. A factory worker in a Western country shows his house to his Russian colleague.- Heres my room, this one is my wifes, this is my eldest daughters, thats our dining room, then the guest bedroom... etc.The Russian guest nods and says, after a pause:- Well, its basically similar to mine. Only we dont have the internal walls. New Russians Jokes Arndt_Vladimir / Getty Images New Russians appeared in the 1990s, after the fall of the Soviet Union, as the Russian nouveaux riches. They quickly became the subject of many jokes due to their lack of culture, education, and manners, as well as their garish tastes. New Russians were usually depicted as low in intelligence and reliant on money to solve everything. 8. Two New Russians are driving in a Jeep and see a sign Traffic police - 100m. One of them takes out his wallet and begins to count the money. Then he sighs and says You know what, Vovan, I dont think we have enough for a hundred cops. 9. A New Russian says to an architect:- I want you to build three swimming pools: one with cold water, one with warm water, and one without any water.- Why would the third one not have any water?- Cuz some of my friends cant swim. Jokes About Lenin Andrei Vasilev / Getty Images Just like other political leaders, Lenin has been the butt of many Russian jokes. His character traits, his manner of speech, and his post-death stay at the Moscow mausoleum are all popular topics. 10. A tired father of six comes home after a night shift. The kids surround him and demand to play. He says:- Okay, lets play a game called Mausoleum where Ill be Lenin and youll be the guards. 11. A journalist interviews Lenin.- Vladimir Ilyich, how did you come up with the slogan Study, study, and study?- I didnt come up with anything, I was just trying out a new pen! Jokes About Lieutenant Rzhevsky Lieutenant Rzhevsky is a fictional character in a play by Aleksandr Gladkov and the movie based on the play, The Hussar Ballad. Possessing both negative and positive character traits, Rzhevsky became a popular subject of Soviet jokes after the release of the movie. Although the original character is not that much of a womanizer, it is this trait in particular that dominates the jokes about him. Interestingly, the jokes usually also feature Natasha Rostova, one of the main characters of Tolstoys War and Peace. The reason for this is that while Rzhevsky represents a vulgar, highly sexualized military man, Natasha Rostova depicts the more traditional ideals of a woman as seen in Russian culture as a demure and charming character. The contrast between them creates plenty of opportunities for jokes. 12. Natasha Rostova is at a ball.- It is terribly hot in here. Lieutenant Rzhevsky, perhaps we could open something?- With my greatest pleasure! Would you prefer champagne or cognac? 13. - Chaps, Im so tired of the same old card games! Why dont we go to the theatre instead? They are putting on Three Sisters.Lieutenant Rzhevsky:- This is going to work out brilliantly! There are three of us, too! Jokes About Little Vovochka STUDIOGRANDOUEST / Getty Images Equivalent to Little Johny, Little Vovochka originated in the early 20th century as a nameless little boy who would shock others with his vulgar behavior. Eventually, the little boy became Little Vovochka as an ironic homage to such leaders of Russia as Vladimir the Great and Vladimir Lenin. More recently, Vladimir Putin also joined the ranks of the Vovochkas. 14. A teacher asks:- Children, who has a pet at home?Everyone raises their hands and shouts out Cat! Dog! Hedgehog!Little Vovochka raises his hand and says Lice, ticks, cockroaches! 15. Little Vovochka decided to become president when he grows up. And he did. Jokes About Chapaev Chapaev was a celebrated Russian army commander during the Russian Civil War. After a Soviet movie was made about him in 1934, Chapaev became a popular subject of Russian jokes. His sidekick, Petka, is usually present in the jokes, too. 16. Petka asks Chapayev:- Vassily Ivanovich, can you drink half a liter of vodka?- Of course!- What about a full liter?- Sure!- How about a whole barrel?- No problem, I can drink that easily.- Can you drink a river of vodka?- Nah, I cant do that. Where would I get such a giant gherkin?
Sunday, March 1, 2020
Categories That Generate Stories for School Newspapers
Categories That Generate Stories for School Newspapers Working at a high school or college newspaper can be a great training ground for anà aspiring young journalist,à but coming up with story ideas can be intimidating. Some school papersà have editors who are full of great story ideas. but finding an assignment is often up to the reporter. Interesting stories are plentiful if you know where to look. Here are descriptions of several types of stories to trigger your search for topics. plus examples of real stories involving those topics done by college journalism students: News This category includes coverage of important issues on campus and developments that affect students. These are the kinds of stories that typically make the front page. Look for issues and developments that make a difference in the lives of students, and then think of the causes and consequences of those events. For instance, lets say your college decides to raise student tuition. What caused this action, and what are its consequences? Chances are you will be able to get several stories out of this single issue. Clubs Student-produced newspapers often reportà about student clubs, and these stories are fairly easy to do. Chances are your schools website has a clubs page with contact information. Get in touch with the adviser and interview him or her along with some student members. Write about what the club does, when they meet, and any other interesting details. Be sure to include contact information for the club, especially the website address. Sports Sports stories are the bread and butter of many school papers, but a lot of people just want to write about pro teams. The schools sports teams should be at the top of the reporting list; after all, these are your classmates, and many other media outlets deal with the pro teams. There are almost as many ways to write about sports as there are teams. Events This area of coverage includes poetry readings, speeches by guest lecturers, visiting bands and musicians, club events, and major productions. Check bulletin boards around campus and the events calendar on the schools website for upcoming events. In addition to covering the events themselves, you can do preview stories in which you alert readers to the event. Notables Interview a fascinating teacher or staff member at your school and write a story. If a student has accomplished interesting things, write about him or her. Sports team stars always make good subjects for profiles. Reviews Reviews of the latest movies, plays, TV shows, video games, music, and books are big reader draws on campus. They can be a lot of fun to write, but remember that reviews dont give you the kind of reporting experience that news stories do. Trends What are the latest trends students are following on your campus? Are there trends on other campuses that your classmates might find interesting? Find trends in technology, relationships, fashion, music, and social media usage and write about them.
Thursday, February 13, 2020
Work sheet Assignment Example | Topics and Well Written Essays - 750 words
Work sheet - Assignment Example lingering aftermath of the 2010 BP oil spill in the Gulf of Mexico, a contemporary technical innovation which provides a ââ¬Å"new method to improve the efficiency of cleaning up oil spills, using magnetsâ⬠(Hall, 2012), holds significant potential. This new method is the brainchild of Markus Zahn, a professor of electrical engineering at MIT, and the research team led by Shahriar Khushrushahi of MITââ¬â¢s Department of Electrical Engineering and Computer Science. MIT had a breakthrough in January, and unveiled its new concept in September this year, posting it as a YouTube video. This innovation originated in Zahnââ¬â¢s concept that, if oil was magnetic, it could be easily separated from water using magnets. It works on the concept of magnetized fluids, or ferro-fluids. These are synthesized fluids, made up of 10 nanometer magnetic nanoparticles coated with a surfactant to stabilize it within a host liquid. They are typically water or oil based. The mixture of oil and water is collected in a restricted space. The oil is made magnetic by the addition of the magnetic nanoparticles. The magnetic oil is then separated from the water, using large magnets, giving clean water and magnetic oil. Using existing technology, the magnetic nanoparticles are removed from the oil, and the oil is recovered and recycled. (Zahn and Khushreshahi, in Hall, 2012). The concept is implemented through an arrangement of cylindrical magnets which are embedded vertically in a large tank. Globules of oil from the magnetic oil and water mixture rise above the water line and are scoope d up by large magnets. (Casey, 2012). The current methods of cleaning oil spills are of five types, each of which is attended by significant shortcomings. The first method just leaves the oil alone, letting it disperse by natural means. This has the possibility of polluting coastal regions and marine industries. The second method uses dispersants to break up the oil and accelerate its natural biodegradation. The
Subscribe to:
Posts (Atom)