Lowering the Freezing Point of Water

Lowering the Freezing Point of Water It is common knowledge that the freezing point of pure water is at 0 degrees centigrade or 32 degrees ferinheight. However, is it possible to keep water in its liquid state below that freezing point? It is indeed possible, and people have been using this principle for centuries! Traveling back to the 1600s we find King Charles I of England dining with his lords and ladies. The final course is the epicurean delight of ice cream. It is doubtful that King Charles I understood the scientific principle of depressing the freezing point of a solution; nevertheless, at that time it was impossible to make ice cream without freezing the crà ¨me by depressing the freezing point of water below 0 degrees centigrade (Zinger, 2005). Today, principalities spread salt on icy roads in order to â€Å"melt† the ice. In actuality, the salt is merely depressing the freezing point of the water, allowing the roads to remain ice free even while the temperatures are below 0 degrees centigrade. To comprehend freezing point depression, you must first understand freezing point. Simply put, it is considered the temperature at which a liquid changes into its solid phase. However, it can also be thought of as the temperature at which the liquid and solid phases are at equilibrium with the atmospheric, or vapor, pressure around it. Freezing occurs as water molecules become ordered into a crystalline lattice. Scientists have long known about the phenomenon that when you add a solute to a solvent, the freezing point lowers, or depresses. Freezing point depression is a colligative property. Colligative properties are the properties of solutions that depend on the number of molecules in a solvent. It does not depend on the properties of the individual molecules in the solution (Prentice-Hall, 1972). As an example, when you create a solution by adding sodium chloride as the solute, to the solvent of water, the freezing temperature of the solution decreases. The increase of the number of solute particles of the solution interferes with the development of the crystalline structure, therefore the freezing process is delayed (Newton, 1999). Freezing point depression can be expressed mathematically as: ΔT = i Kf m. The ΔT equals change in temperature, i equals the number of particles into which the solute dissociates, m equals the moles of the solute per kilogram of solvent, and Kf equals the molal freeing point constant (for water, Kf = 1.853 C/m) (thinkquest, 2010). As discussed, solutes interfere with the shifting of a liquid to a solid state. The colligative properties relate to the number of solute particles in a solution. The greater the solute particles there are in a solution, the greater the decrease in freezing temperature. If 10 grams of sodium chloride were added to 100 grams of water, the freezing point would drop to -5.9 degrees centigrade. However if 10 grams of sucrose were added to 100 grams of water, the water solutions freezing point would only drop to -0.56 degrees centigrade. Why the dramatic difference between the two? After all, the same amount of sucrose and sodium chloride was added to the same amount of water. The answer lies in the number of particles in each solute. There are more particles in 10 grams of sodium chloride then there are in 10 grams of sucrose. Sucrose, C12 H22 O11, has a molecular weight of 342.3 grams per mole. Sodium Chloride on the other hand, has a molecular weight of 58.44 grams per mole. Sodium Ch loride has almost six times as many particles than sucrose has in the same number of grams. Therefore, the sodium chloride solution has a lower freezing point than the sucrose solution (Chemistry Explained, 2010). Not only is it possible to quantify the depression of the freezing point of a solution, it is possible to predict how far the freezing point will be decreased. According to the principles of the colligative properties, it doesnt matter what the physical properties of the solute added to the solution may be. The only determining factor is the number of particles in the solution. Therefore, if you double the amount of sodium chloride in a solution, the depression of the freezing point will be double the original solution. The original question of, â€Å"is it possible to keep water in its liquid state below that freezing point?†, has most assuredly been answered with a resounding yes. Not only can it be lowered, that lowering can be understood, quantified and predicted. In the experiment phase of this project, the scientific method will be used to assess the validity of this research. King Charles I of England would be surprised to know that his epicurean delight of ice cream paved the way for the discoveries of colligative properties and lowering the freezing point of water. Bibliography A Brief History of Ice Cream, http://www.zingersicecream.com/history.htm Colligative Properties, http://www.chemistryexplained.com/Ce-Co/Colligative-Properties.html Solutions and Colligative Properties: Colligative Properties, http://library.thinkquest.org/C006669/data/Chem/colligative/colligative.html W.J. Moore, Physical Chemistry Prentice-Hall 1972

Localization of Bran Functions: Research and Analysis

Localization of Bran Functions: Research and Analysis Adult brains show localized functions, for example with speech processes being concentrated in areas in the left hemisphere and with executive functions concentrated in the pre-frontal cortex. How does this organization come about? Is it because these functions are localized from birth? The functioning and processes of the brain is a very complex subject. Years of studies and experiments are yet to answer all the questions we have, although modern technology like brain imaging and MRI’s has come a long way to try to understand the way our brains work and their development. The matters we will be looking at is how the brain functions are organised, exploring localisation and the strengths and limitations to this, and could this localization have be set in shape from the birth of a human brain. To do this we will be focusing on modulization and innate modularity and the theories behind them. Cognitive development of the brain starts as a baby grows in the womb and the genetic makeup of the parents entwine and start to create a genetic blueprint. As there is a limited environment in the womb, the effect that environment will have on the baby will be limited. Because of this, the post-natal stage of brain development is probably the considered the more important of the two. The human brain does most of its advance development outside of the womb, only creating the basic connections and functions inside the womb. This can be seen using brain mapping of a baby at different stages of their infancy; as a neonate the baby as very few connections and as they get older, the dendritic trees of neurons can be seen extending creating much more connections. Huttenlocher (1990) reported a steady increase in the number of synapses in several regions of the cerebral cortex†¦Ã¢â‚¬ ¦in parts of the visual cortex, the generation of the synapses begins around the time of birth. (Mareschal et al., 2004, p. 122)From this we can see that there are limited functions and connectivity in the brain at birth and soon after birth these connectivities rapidly start to expand. So for these functions to be localised from birth would mean having all the right connections in place for this to be possible. So from this alone we can assume that these functions are localized through influence of their environment after birth and not set in place at birth. During the early stages of a babies postnatal brain development , the brain holds the ability of plasticity which allows change and adaption for diiferent parts of the brain. At this time plasticity limits the functions in the brain are not yet identified as this capability allows for various parts of the brain to take on diverse functions in cases of localized brain damage. As the child turn into n adult the brain becomes more set and let plastic and damage to the brain in this state is a lot harder to recover from. As the brain continues to mature, its neural pathways separate and functions localise, making it much harder to ‘transfer’ functions from one section of the brain to another. Parts of the brain are allocated with certain functions; language and speech is located predominantly in the left hemisphere and cognitive functions in pre-frontal cortex. (Mareschal et al., 2004, p. 123) Along with the separation of the neural pathways and brain development comes funct ional specialization. Lewkowitz and Turkewitz (1981) study in the early 1980s supported this claim. They showed that new-born babies visual preferences were significantly affected by previous auditory stimulus. Also studies by Meltzoff and Borton (1979) show that independent pathways in infants between 3 and 5 months of age are used to receive information from different senses. These processes of separating neural pathways to create a localized functioning of the brain are linked to selectionism which originates from Darwins theory of selection, in this case showing that the pathways that were ‘weaker’ or used less are eliminated and die off while those that are frequently use are strengthened in order to function a lot quicker. Although there is little understand and much speculation about this process. (Mareschal et al., 2004,p. 124-5) By dividing the brain into cognitive modules, this helps us to try to understand the structures and functions of the brain. There is a lot of speculation as to whether these do modules exist, they provide a basis for potential explanation of brain functioning. Scientists, Fodor and Karmiloff-Smith share very contrasting views and theories on brain functioning; although they both believe there are such things as cognitive module, they have conflicting views on how they are developed. Fodor (1983) had a nativist perpective and argued that modularity of the brain is ‘innate’. He believed that humans are born with the innate capacity to develop information processing systems that allow them to make sense of the world, in which they have evolved. (Mareschal et al., 2004, p.127) He believed that the brain has the ability to function in a particular way and the environment cannot affect this. This statement can easily be scrutinised as early we discussed that genes ‘always’ interact with their environment. Therefore, for the functioning of the brain to not be affected by the environment would me an that certain genes do not interact with their environment. Fodor claimed that this happened as a direct outcome of the evolution of our species. (Mareschal et al., 2004, p.127) One piece of evidence that is useful in showing a weakness in Fodor’s theory is that of Self-organization. The Self-organizing system is based on the ability of the brain to sort information into structures when in a particular environment. (Mareschal et al 2004, p.132), According to Keslo 1995, Johnson 1997 (cited in Mareschal et al 2004), Brain development at all of the stages requires a certain amount of self-organisation. Self-organisation is based on the theory of Hebb (1949) which claims that for localized functions to work at the same time and to create particular pathways, an important rule of repetition comes into play. The Hebb rule states that the connections created by neurons to transmit information are joined by its repeated use and so support the theory of selectionism. Karmiloff-Smith (1992) on the other hand, argues that cognitive modules created through development and the effect of environment interaction and stimulation. A strong indicator for Smith is the plasticity of the brain, that certains parts of the brain may take up the function of another part of the brain if needed at an early age, which challenges the nativist idea of innate local functioning. This debate between Fodor and Karmiloff-Smith is ongoing. Petersen et al. (1990) conducted an experiment using a PET machine, where they presented native and foreign speakers with English words. The test shown that particular parts of the cortex in native speakers responded to English words. This implies that the exposure to same the environment led to the development of a specific processing area in the cortex of their left hemisphere to process English language. This experiment supports the ‘modulization theory. (Mareschal et al., 2004, p. 130) While there is much complex data to consi der, there appears to be more evidence in favour of Karmiloff-Smith’s (1992) theory which is best demonstrated with experiments and studies carried out on the ability for children to learn language. Nativists like Chomsky (1965) claim that language is innate and supporting this claim further Pinker (1994) claims that pidgins and creoles are some of the evidence for this. His claim is drawn from the evidence which shows that children are able to create grammatically correct language though they never heard it being spoken before. Chomskys argument from the ‘poverty of the input suggesting that children can create a new language such as well formulated, never before heard question. He also claims that the brain has a special set of genes allowing language to develop in a particular cortical region. In contrast to Pinkers claim, the evidence from neuroscience and particularly the study carried out by Neville et al. (1998) illustrates that though in adulthood there are spec ialist cortical regions processing language, it wasn’t destined from birth that these functions were processed in these parts of the cortex. The experiment Neville et al. carried out with his participants, showed that in the deaf participants, the identical area of language processing was stimulated as in the hearing participants and in further still, a larger part of the right hemisphere was activated. Findings like this show that different parts of the brain can support language related information processing. (Mareschal et al., 2004p. 140) Reilly et al. (1998) provides further evidence. They conducted a study carried out on children with localized brain damage in the area of language processing. This occurred soon after or during birth. The study showed that while the learning ability of the children was not continuous but in fact varied, it presented a pattern of constant functional regaining of the damaged area, which were taken over by another area of the cortex. Anothe r study for adults revealed that localized lacerations causing specific loss of certain capabilities are mostly permanent. This suggests that in adulthood the plasticity of the brain reduces the functions cannot be relocated elsewhere. Johnson et al. (1996) study regarding the practical ability of pre-frontal cortex appears to support modularization. The study involving infants, revealed results suggesting that cognitive and behavioural development of infants is associated with the pre-frontal cortex especially when it comes to learning new abilities in initial stages of development. This demonstrates that the pre-frontal cortex activity is more general in early development and is able to take on other functions. Changes in these functions in the cortex are further focused and localized and the role of pre-frontal cortex reduces. It is very difficult to prove one theory as correct and the other as incorrect, as they both share areas that can be supported by some research or studies. Although a lot of evidence appears to be in favour of the modularization theory, there is a lot evidence that backs the innate modularity theory also. Both having strengths and weaknesses, but neither have enough evidence to completely contradict the other. In this case it would be safer to say that evidence shows that some functions are localized from birth, but have the potential to adapt if necessary while other functions appear to be unable to interchange and can only operate in there localized region. The reason for this appears to be circumstantial. Depending on factors such as age, damage, purpose, function and environment. It has been made know that not all functions are localized at birth and that there is much growth, development and connections made after birth that allows many areas of the brain to take part in one function and allowing the brain to expand and change. The evidence shown in this essay clearly shows that modularization is supported more than innate modularity. Even with the aid of current technology, scientists are still unable to stipulate which of the theories is the most accurate and the unending dispute is so yet to be settled. Word count: 1809 References Mareschal, D., Johnson, M. H . and Grayson A, (2004) Brain and cognitive development in Oates J. and Grayson A. (eds) Cognitive and Language Development in Children, Oxford, Blackwell/The Open University

ROI in the Public Sector :: essays research papers

ROI in the Public Sector Interest in return on investment (ROI) by public sector organizations continues to grow. This interest is not isolated to large federal agencies. Myths regarding the use of ROI in government abound, prevents many agencies from developing a comprehensive approach to evaluating human resources, training, and performance improvement initiatives. The key is distinguishing what is myth versus what is reality. Efforts have been made toward more responsible performance management and measurement in the public sector. The Chief Financial Officers Act of 1990 was enacted to improve the management practices of the federal government and to ensure the production of reliable and timely financial information for use in managing and evaluating federal programs. The government Management Reform Act of 1994 added to the Chief Financial Officers Act by requiring all federal agencies to prepare and make public annual financial reports. It also authorized the Office of Management and Budget to implement a pilot program to streamline and consolidate certain statutory financial management and performance reports into a single, annual accountability report. One piece of legislation that has had influence in enhancing accountability in government agencies is The Government and Performance and Results Act of 1993. GPRA (or the "Results Act") is the primary legislative framework through which agenc ies are required to set strategic goals, measure performance, and report on the degree to which goals are met. Basically it requires government agencies to develop performance plans that outline the link between strategic goals and day-to-day operations. ROI is not the first private sector practice to be applied to public sector organizations. Total quality management (TQM), zero-based budgeting, and the balanced scorecard all had their initial beginning in the private sector and to some extent have been applied in government. While the fundamental use of ROI comes from accounting and finance (earnings divided by investment), the process of cost-benefit analysis is grounded in welfare economics and public finance. Both account for the financial benefits of a program, project, or initiative compared to the costs. The difference in the two equations is that cost-benefit analysis results in a ratio comparing monetary benefits to the program costs (BCR); ROI results in a percentage that presents the net monetary benefits (earnings) compared to the costs (investment). For many years there has been a great divide between traditional program evaluation and evaluation coming from business. Program evaluators have long been concerned with the correctness of use of methodologies, expending whatever time necessary to ensure purity of research.

Poetry, History, and Dialectic :: Philosophy Argumentative Argument Papers

Poetry, History, and Dialectic Twice in the Poetics, Aristotle contrasts poetry with history. Whatever its didactic value, the contrast has not seemed to readers of special philosophical interest. The aim of this paper is to show that this contrast is philosophically significant not just for our understanding of tragedy but also for the light it sheds on Aristotle’s overall methodology. I shall show how he uses the method sketched in the Topics to define tragedy and explain why the same method will not define history. In particular, tragedy admits of definition because its parts constitute a unity, and much of the Poetics aims to show how, despite being defined through six distinct parts, tragedy can be one. In contrast, history, though a proper preliminary to poetics and concerned also with human action, does not admit of scientific treatment because it contains no essential unities. Aristotle’s understanding of ‘science’ is used here to explain why any attempt to create a scientific hi story would turn history into poetry. I Aristotle claims that the art of dialectic sketched in the Topics contributes to philosophical knowledge because it can be used to find indemonstrable first principles from common opinions: "for, being capable of examining, dialectic has a path to the principles of all disciplines" (à µB ¤  £Ã…“Å ¸Ãƒ ¦Ã¢â‚¬ ºÃƒ  Ã‚ ¤) (I.2.101b3-4). Scientific knowledge of a subject consists of grasping its principles and demonstrating its essential attributes from them. How does one come to know the first principles? Obviously, they cannot be demonstrated from prior principles; they are first principles. As such, they are somehow determined by dialectic. Thus, dialectic transforms what we can call, for lack of a better term, a "subject matter" into a science. What is the state of this subject matter before dialectic discovers its principles? It is clear from our Topics text that this examination will look for common opinions, and it is well recognized that Aristotle's actual inquiries often begin from common opinions.(1) So the pre-scientific subject matter must contain common opinions about its facts. Aristotle has a name for such a setting out of facts: in the Prior Analytics, he speaks of deriving the principles of each field from experience and he refers to the account of the phenomena of a field as a "history" (Èà ³Ãƒ µÃ‚ ¦Ãƒ ²Ãƒ ¥Ã‹Å") (46a17-27). Evidently, "history" precedes "science," and transition is effected by dialectic. Aristotle has much to say about how knowledge is derived from sensation and experience, but he never explains how (or whether!) his many remarks fit together into a single process.

Comparing Civil Disobedience by Henry David Thoreau and Martin Luther K

"...A little rebellion now and then is a good thing...It is a medicine necessary for the sound health of government." Thomas JeffersonThoreau, a transcendentalist from the mid 19th century and Martin Luther King Jr., the Civil Rights movement leader of a century later both believed the necessity of medicine for government. Although they showed disagreement of opinion on issues regarding voting, both writers agreed on the necessity to reform the government and the means of accomplishing it. In King's Letter from Birmingham Jail and Thoreau's Civil Disobedience, both agreed on injustice of majority to rule over minority, both resisted the government passively, and both wanted a better government immediately.The majority is not necessarily right, but they have always been the ones in power because they are the strongest and the most influential. Therefore, all the laws are written by the majority, almost all are in favor of the majority, and all are enforced by the majority. According to King, a law drafted by the majority is only just when the minority are willing to follow it. He wrote "An unjust law is a code that a numerical or power majority group compels a minority group to obey but does not make binding on itself" (2:475). In other words, if a law denies the right of the minority or is inflicted upon the minority by force, then it is not a just law. Similar opinions are shared by Thoreau, when he writes "But a government in which the majority r...

French Impressionism and Post Impressionism in the late

French Impressionism and Post Impressionism in the late 19th C. Ornery Before the emergence of Impressionism we can see a major political and social transition in central Europe which has demonstrable artistic and literary consequences. The major aspects of this change include: The ICC industrial expansion which took away opportunities of individual farming and craft practice and replaced them with paid labor in factories. Governments across Europe are exploring constitutional formulas that attempt to balance the polarities of social right and material progress.Religious institutions are trying to absorb new scientific knowledge and social theory against the fabric of ancient scriptures. In France specifically we see the emergence of political instability with various Governments and various forms of government rising and succeeding another between the absolute monarchy that ends with Louis the XVI in 1789 and Napoleons expansionist empire building which begins in 1851 with a coup d'  ©tat and comes to a close in 1870.Amongst these turbulent years we see political outcomes that range from â€Å"reign of terror†, constitutional monarchy, a republic, a royal serration and a socialist commune as well as the Napoleonic empire. During this turbulent social and political era we also have Marx and Angels issuing the communist manifesto in 1848 and Darning's revolutionary publication † Origin of the species† in 1859. Painters have now access to synthetic chemical pigments developed by modern science which replace the old-fashioned organic pigments.The new pigments often have greater luminosity and brilliance. Lithography makes possible low-cost reproductions which allows artists to reach a new public with prints of their work. The same technology also brings about the newspaper and the low-cost novel. In every case, individual ideas can now be â€Å"broadcast† and disseminated amongst a more diverse audience than previously. Aestheticism also can be printed and distributed widely. The previous ties between knowledge (as apart from education) and class-structure are being stretched much further.Painters and poets who had not long before escaped reality as such with flights to the exotic and romantic dreamless that typify the Neo-classic and Romantic styles and periods, are returning to the here and now. Balzac and Dickens are writing social critique, Dandier and Courier paint the social underdog in a style that creates social impact because of it's convincing realist treatment and the genre of subject-matter. We can see painters slowly turning towards the great cities for inspiration and subject- matter and a dominance of the artificial over the natural.The growing need in this new social climate for artists to achieve immediacy of expression mean that we see them going outdoors to paint, using smaller canvasses out of necessity and speeding up the process of recording and depiction. The impressionist style of painting i s characterized chiefly by concentration on the general impression produced by a scene or object and the use of unmixed primary colors and small strokes to simulate actual reflected light.Impressionism, (French â€Å"Impressionism†), a major movement, first in painting and later in music, that developed chiefly in France during the late 19th and early 20th centuries. Impressionist painting comprises the work produced between about 1867 and 1886 by a group of artists who shared a set of related approaches and techniques. The most conspicuous characteristic of Impressionism was an attempt to accurately and objectively record visual reality in terms of transient effects of light and color.The principal Impressionist painters were: Claude Monet Pierre Augusta Renoir Camille Pissarro Alfred Sisley Berth Morison Armband Glutamine and FRR ©d ©rich Bacilli who worked together, influenced each other, and exhibited together and independently. Edgar Degas and Paul C ©Zane also pai nted in an Impressionist style for a time in the early sass. The established painter ?dotard Meant, whose work in the sass greatly influenced Monet and others of the group, himself adopted the Impressionist approach about 1873.The word ‘ ‘impressionist† was printed for the first time in the Charier on the 15 April 1874 by Louis Leroy(deed), after Claude Motet's landscape entitled Impressions: sole eleven [Impressions]. This word was used to call Exposition des Impressionist an exhibit held in the salons of the photographer Nadir and organized by the â€Å"Socio ©t © anemone des painters, sculptures et gravers† ‘Anonymous society of painters, sculptors and engravers†], composed of Pissarro, Monet, Sisley, Degas, Renoir, C ©Zane, Glutamine and Berth Morison.The popular press, predictably (the more things change†¦ Had a field day making fun of the impressionists. For example, Louis Leroy who wrote as the art-critic for the El Charier repo rted on April 25th that his companion at the opening, a noted academic (identity not disclosed) had made the following sarcastic remark: â€Å"Impressionism- I was certain of it. I was Just telling yeses that, since I was impressed, there had to be some impression in it†¦ And what freedom, what ease of workmanship!Wallpaper in it's embryonic state is more finished than that seascape† Edmond Tyranny (La Novel Painter, The new painting, 1876) on the other hand eve high praise to the Impressionists: they have†¦ Succeeded in breaking down sunlight into rays, it's elements, and to reconstitute it's unity by meaner of the general harmony of spectrum colors which they spread on their canvasses†¦. The most learned physicist could find nothing to criticize in their analysis of light.The Founders The founders of this society were animated by the will to break with the official art. The official theory that the color should be dropped pure on the canvas instead of getting mixed on the palette will only be respected by a few of them and only for a people of years. In fact, the Impressionism is a lot more a state of the mind than a technique; thus artists other than painters have also been qualified of impressionists. Many of these painters ignore the law of simultaneous contrast as established by Chevrolet in 1823.The expressions ‘ ‘independents† or ‘ ‘open air painters† may be more appropriate than ‘ ‘impressionists† to qualify those artists continuing a tradition inherited from Eugene Delicacies, who thought that the drawing and colors were a whole, and English landscape painters, Constable, Bonito and especially William Turner, hose first law was the observation of nature, as for landscape painters working in Barbarian and in the Fontainebleau forest.Eugene Boudoir, Satanists L ©pine and the Dutch Jointing were among the forerunners of the movement. In 1858, Eugene Boudoir met in Honolulu Cla ude Monet, aged about 1 5 years. He brought him to the seashore, gave him colors untaught him how to observe the changing lights on the Seine estuary. In those years, Boudoir is still the minor painter of the Pardon De Saints-Anne-la-papal, but is on the process of getting installed on the Normandy coast to paint the beaches of Trouble and El Have.On the C ¶et De Gar ¤CE, in the Saint-Simi ©on farm, he attracts many painters including Courier, Bacilli, Monet, Sisley. The last three will meet in Paris in the free Glare studio, and in 1863 they will discover a porcelain painter, Augusta Renoir. At the same time, other artists wanted to bypass the limitations attached to the Cole des Beaux-Arts and were working aqua des Roof ©verse in the Swiss Academy; the eldest, from the Danish West Indies, was Camille Pissarro; the other two were Paul C ©Zane and Armband Glutamine.El ‘ ‘Salon des Refuse ©s† The French people were highly impressed by the works of Detour ed Meant, and came outraged when they learned that he was refused for the 1863 Salon. The indignation was so high among the artistic population that Napoleon Ill allowed the opening off ‘ ‘Salon des Refuse ©s†, where Meant, Pissarro, Jointing, Calls, Centuries, Faint-Layout, etc. Showed their works. El D ©Jejune sure leered provoked a great enthusiasm among the young painters, who saw represented in Manatee's painting many of their concerns.They started meeting around him in the cafe © Grubbers, 9, avenue De Chicly, and thus creating l' ©Cole des Buttonholes. The 1866 Salon accepted the works of some of them: Degas, Bacilli, Berth Morison, Sisley; Monet exposed the portrait of Camille, Pissarro, less Boards De la Manner en hive; Meant, C ©Zane, Renoir were refused, and Mile Cola wrote in elopement a diatribe which made him the official upholder of those newcomers bearing an more revolutionary attitude in the conception than in the still traditional painti ng.The main distinction lies in the attraction for color and the liking of light; but Berth Morison remained faithful to Manatee's teaching; Degas was mixed between his admiration of Ingress and the Italian Renaissance painters; C ©Zane attempted to fairer du Poisson sure nature†; Claude Monet himself, in la Terraces AU Have and less Femmes AU Jarring (1866, Louvre, sales du Jew De Puma), is far from announcing his future audacity. The 1870 war The 1870 war split up those beginners.FRR ©d ©rich Bacilli was killed in Bean-la- Rolando; Renoir was embroiled; Degas volunteered; C ©Zane retired in Provence; Pissarro, Monet and Sisley moved to London, where they met Paul Duran-Rule. This stay in London is a major step in the evolution of Impressionism, both because these young artists met there their first merchant, and because they discovered Turner's nettings, whose light analysis will mark them. Back in Paris, most of these painters went to work in Argentines (Monet, Reno ir), Chateau (Renoir), Marry (Sisley), or on the banks of the river Jose (Pissarro, Glutamine, C ©Zane).Detoured Meant painted the Seine with Claude Monet and, under his influence, adopted the open air work. The opinion of the public Duran-Rule was unable to sell the works of the future impressionists and had to cease buying in 1873; thus, next year, they decided to expose in Nadir's (1 5 April-1 5 May 1874), where they displayed the works that the Salon had refused. They invited with no success Meant, but L ©pine, Boudoir, Breadcrumbs the engraver, Starts the sculptor, and the painters Calls, De Nits, Henry Route, etc.Joined them. Many artists became then conscious of the public and critics incomprehension, but the solidarity didn't last long. C ©Zane didn't participate in the group second exhibit, galleria Duran-Rule, rue El Paltrier, in 1876, which hold 24 Degas and works from Berth Morison, Claude Monet, Augusta Renoir, Pissarro, Sisley and FRR ©d ©rich Bacilli. They m et some upholders, such as Tyranny, Armband Silver, Philippe Burry, Mile Bal ©mood, Georges Rive ©re, soon tit The ©adore Turret.The disappearance of C ©Zane, Renoir, Sisley, Berth Morison in the 1879 exhibit proved that the group was splitting apart. Renoir preferred to send to the official Salon Mme Carpenters et sees infants and the Portrait of Jeanne Samara; yet only few people admired his artworks and of those of his friends, and the artilleries was uneasy, if not miserable. Degas tried, with Pissarro, to maintain the unity of the group, but his attempt failed since Monet, Sisley and Renoir were missing for the fifth exhibit, opened in April 1880; however, artworks room Gauguin appeared there for the first time.In 1881, some of the Impressionists went back to Nadir's: Pissarro, Degas, Glutamine, Berth Morison. The ‘ ‘seventh exhibition of independent artists† was the become the ‘Salon des mind ©pendants† two years later. Only Monet and Si sley continued to Journey deeper into the analysis of the changing moods of light and their effects on objects. Degas, Renoir and C ©Zane headed towards other painterly pursuits, whereas Pissarro was interested by the researches of Paul Gauguin, Georges Serrate, Paul Signal.At this stage, Impressionists were coming biblically appreciated, but their situation was still harsh; the Salon continued to refuse their paintings, and in 1894, 25 out of 65 artworks donated by Collaborate to the Luxembourg museum were rejected. Yet, when Camille Pissarro, the Impressionist patriarch, died in 1903, everybody agreed that this movement was the main Sixth century artistic revolution, and that all its members were among the finest painters.The influence of the Impressionists was great out of France, especially in Germany, with Liebermann, Corinth, and in Belgium. The first of the eight Impressionist exhibitions was held in 1874: Included were the following artists (and others) 1840-1926 Claude Mo net (lived 86 years) 1831-1903 Camille Pissarro (lived arrears) 1841-1919 Pierre August Renoir (lived 78 years) 1834-1917 Edgar Degas (lived 83 years) 1834-1903 James A.Mac Neil Whistler (lived 69 years) 1864-1901 Henry Marie Raymond De Toulouse-Ululate (lived 37 years) 1839-1899 Alfred Sisley (lived 60 years) 1839-1906 Paul C ©cane (lived 67 years) Glutamine 1824- 1898 Egg ©en Boudoir (lived 74 years) 1841-1895 Berth Morison * (lived 56 years) * Berth Morison was the only female painter to participate in the 1874 exhibition (as ell as , 1882 and 1886 exhibitions). She was Joined later by another female painter, the American Mary Cast (1844-1926) who exhibited in the and 1886 exhibitions.Note: Artists listed in green can be said to have only had a dubious relationship to the Impressionist ideal during the sass's (especially C ©Zane) The other seven Expressionist exhibitions were held in and 1886 Less closely connected with the Impressionists were Henry De Toulouse-Ululate and Dillon Redone. Concerned with perceptive portraiture and decorative effect, Toulouse-Ululate used the vivid contrasting colors of Impressionism in flat areas enclosed by a distinct, sinuous outline.Redo's still-life floras were somewhat Impressionistic, but his other works are more linear and Symbolist. In general, Postmodernists led away from a naturalistic approach and toward the two major movements of early 20th-century art that superseded it: Cubism and Fauvism, which sought to evoke emotion through color and line. Post-impressionism Post-impressionism is a movement of major importance in Western painting. As a movement it represents both, an extension of Impressionism, and a rejection of that style's inherent limitations.The term Post-impressionism was coined by the English art critic Roger Fry for the work of such late 19th-century painters as Paul C ©Zane, Georges Serrate, Paul Gauguin, Vincent van Gogh, Henry De Toulouse-Ululate, and others. All of these painters except va n Gogh were French, and most of them began as Impressionists; each of them abandoned the style, however, to form his own highly personal art. Impressionism was based, in its strictest sense, on the objective recording of nature in terms of the fugitive effects of color and light.The Vivisectionists rejected his limited aim in favor of more ambitious expression, admitting their debt, however, to the pure, brilliant colors of Impressionism, its freedom from traditional subject matter, and its technique of defining form with short brushstrokes of broken color. The work of these painters formed a basis for several contemporary trends and for modern art in general. After a phase of uneasy dissension among the Impressionists, Paul C ©Zane withdrew from the movement in 1878 in order â€Å"to make of Impressionism something solid and durable like the art of the museums. In contrast to the passing show evicted by the Impressionists, his approach imbued landscape and still life with a monu mental permanence and coherence. He abandoned the Impressionists' virtuoso depiction of evanescent light effects in his preoccupation with the underlying structures of natural forms and the problem of unifying surface patterns with spatial depth. His art was the major inspiration for Cubism, which was concerned primarily with depicting the structure of objects.In 1884, at the Salon des Mind ©pendants in Paris, Georges Serrate revealed an intention similar to C ©cane's with paintings that wowed more attention to composition than those of the Impressionists and that delved into the science of color. Taking as a point of departure the Impressionist practice of using broken color to suggest shimmering light, he sought to achieve luminosity through optical formulas, placing side by side tiny bits of contrasting color chosen to blend from a distance into a dominant color.This extremely theoretical technique, called Pointillism, was adopted by a number of contemporary painters and form ed the basis of the style of painting known as Neo-lonesomeness The Vivisectionists often exhibited together but, unlike the Impressionists who were a close-knit, convivial group, they painted mainly alone. C ©Zane painted in isolation at Xix-en-Provence in southern France; his solitude was matched by that of Gauguin, who in 1891 took up residence in Tahiti, and of Van Gogh, who painted in the countryside at Arles.Both Gauguin and van Gogh rejected the indifferent objectivity of Impressionism in favor of a more personal, spiritual expression. After exhibiting with the Impressionists in 1886, Gauguin renounced â€Å"the abominable error of naturalism. With the young painter ?mile Bernard, he led a self-conscious return to the aesthetic of primitive art, for which he believed imagination and ideas were the primary inspiration and the representation of nature merely a vehicle for their expression.Copying the pure, flat color, heavy outline, and decorative quality of medieval stained glass and manuscript illumination, the two artists explored the expressive potential of pure color and line, Gauguin especially using exotic and sensuous color harmonies to poetically depict the Athenians he eventually lived among. Arriving in Paris in 1886, the Dutch painter Vincent van Gogh quickly adapted Impressionist techniques and color to express his acutely felt emotions.

Production and Supply of Exotic Vegetables Essay

Greenhouse cultivation started on commercial basis 20 years ago in India. At present more than 25000 greenhouses exists in India cultivating roses, gerbera, carnation, Anthurium, orchids, and vegetables like Capsicum, tomatoes, cucumber and exotic vegetables. India contributes only 1% to the total area under greenhouse in the world. At present Gujarat has around 450 operational greenhouses and will have more than 800 operational greenhouses in 2013. Hence, it’s the time now to promote greenhouse farming to have sustainable agriculture with quality produce in the hands of the consumers. Greenhouse technology has been promoted by the central government and state government on large scale. The farmers are not utilising it in an efficient way mainly because of cultivating the crops as same as they are cultivating in the open field. Hence, the core concept of greenhouse gets vanished away. The research paper is with reference to the research conducted on Controlled environment cultivation in Gujarat. It includes the various aspects of production, operation, supply chain and marketing, subsidies given by various horticulture departments at Central and State level. There is a lot of opportunities and improvements needs to be done at farmer’s level. It includes grabbing the right market at right time which can be achieved only when they transplant at right time keeping in mind the nearby market. Also, the farmers have to change their mind set about the overdose of fertilizers and pesticides which is not beneficial to crops but in turn invites more of pests and disease and deteriorate our soil micro flora and fauna. Since, cultivation in greenhouse in itself is an advantage, increasing the cost of cultivation takes them away from gaining the real advantage. For which it is necessary that they should follow the package of practise as given by the horticulturists of the state government department. Maintenance is another aspect which should be kept in mind like time and schedule of irrigation, weeding, earthing up, right time for tieing the plant, stage of picking the fruits etc. Also, if there is any attack of pest or disease they should consult entomologists or pathologists rather than blindly applying the chemicals as given by the retail stores to sale and promote their brand.