Thursday, November 28, 2019
Fungicides Market Trends Forecasts to 2019 Essay Example
Fungicides Market Trends Forecasts to 2019 Essay Fungicides Market by Type (Benzimidazoles, Dithiocarbamates, Phenylamides, Chloronitriles, Strobilurins, Triazoles,), by CROP Type (Cereals Grains, Oilseeds Pulses, Fruits Vegetables), by Geography ââ¬â Global Trends Forecasts to 2019 The fungicides market has grown exponentially in the last few years and this growth is expected to continue. Numerous factors such as high cost of seeds, ease of application, modern production practices, new product offerings, increased availability, and increasing threat of fungal infections are the major causes of the increasing demand for fungicides. Fungicides inhibit the growth of pathogens so that plant tissues that provide carbohydrates to the grains are protected from damage. They are applied to the seed, in the furrow or directly onto the leaves and stems, as foliar sprays. The best approach to protect these tissues is by applying fungicides to seeds or as soil treatments or sprays during stem elongation. This helps in reducing the growth and reproduction of the fungus. Fungicides are better at protecting diseases than eradicating them. Early treatment given to crops can reduce the amount of airborne pathogens spreading from one crop to another. The European Union as well as the FDA (U.S.) is keeping a strict vigil on chemicals used in fungicides. Due to these restrictions, extensive investigation and progress is undertaken by key players to develop more environment-friendly fungicides as well as utilize biological sources for manufacturing them. We will write a custom essay sample on Fungicides Market Trends Forecasts to 2019 specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Fungicides Market Trends Forecasts to 2019 specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Fungicides Market Trends Forecasts to 2019 specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Complete report available @ http://www.rnrmarketresearch.com/fungicides-market-by-type-benzimidazoles-dithiocarbamates-phenylamides-chloronitriles-strobilurins-triazoles-by-crop-type-cereals-grains-oilseeds-pulses-fruits-vegetables-by-geog-market-report.html Companies are entering into distribution agreements to gain access to unexplored markets in the Asia-Pacific, Latin American, and the Middle Eastern regions. Reputed companies such as Bayer CropScience (Germany), BASF (Germany), Syngenta (Switzerland), and DuPont (U.S.) are investing in greenfield ventures in emerging economies to reap the benefits of low-cost
Sunday, November 24, 2019
Commune essays
Commune essays communist government. Communism depends on all members of society to work together to achieve one common goal. Because of this, communism tends to be more successful in societies that are small and homogeneous. Party leaders are able to control smaller groups of people with a common background without resorting to tactics of human rights violations to maintain power. Large or geographically diverse populations tend to be diverse, making it difficult to maintain a common goals or set of rules for shared effort and resources. Also, large, diversified societies tend to gravitate towards a system of hierarchy, reducing the perception of fair distribution of work and resources. Systems of hierarchy show sign of class distinction in an otherwise classless society. When a system of hierarchy develops, it tends to destabilize a communistic society. The other factor that influences the success of a communist government is the presence of a strong communist revolutionary leader. Communist systems tend to flourish in the presence of a revolutionary leader. The people have a strong leader in which to rally around during times of hardship or crisis. Also, strong revolutionary leaders are known to take great measures to ensure that the spirit of the revolution lives on. Some of these measures include the use of brutal tactics to defeat groups opposed to the communist rule. Some people tend to underestimate this factor when accounting for the success of failure of communist systems. This factor does not only apply to communist government but all revolutionary governments. After the American Revolution, our leaders were concerned about whether or not the country would survive after the fire of the revolution died out. Communism in Russia was mainly the cause of V.I. Lenin. After studying the theories of Karl Marx, Lenin created the party known as the Bolsheviks. He was known as a hardliner and relentless at seizing power ...
Thursday, November 21, 2019
Ground water contamination issue due to the use of septic tanks in Research Paper
Ground water contamination issue due to the use of septic tanks in Monroe County Florida (Florida Keys) - Research Paper Example Due to the rapid development of the area, the permanent living population for the area has grown to around 85000, against that of almost 10000 living there a few decades back. This along with the incoming tourist rush has put real pressure on the infrastructure of the area, particularly its human sewage disposal program. Several studies conducted during the recent past have shown the evidence of seepage from human sewage to the living area of coral reef. This has been mainly due to the leakages from outdated or mismatched septic tanks and cesspits. Although around 30% of the resident population is served by the central sewerage system, others depend on the network of outdated septic tanks and cesspits. Although, funds are being organized to repair and replace the sewage system by the US Congress in consultation with resident locality members, United States Environmental Protection Agency, South Florida Water management District and Florida Keys Aqueduct Authority; the total cost to rectify the system would range from around 554 million to 1.1 billion dollars. The main hesitation from the local residents to update their sewage system arises due to the unaffordable cost involved, which can go up to $ 10000 to $20000 for each unit, while everyone is keen to clean their mess, as they are aware of its damage to the coral reef and marine environment. Hence govt. help or subsidy is nessary.........(Key Sewage, CBS Radio Network) While the point source of water pollution refers to the industrial pollutants, the non point sources of pollution affect Florida Keys area, as it has very few sewage disposal or treatment systems that are needed by any urban landscape. The non point sources of pollution also include sediments from construction sites, fertilizers or other agriculture products, bacteria from livestock as well as the
Wednesday, November 20, 2019
BHP Billitons Vacation Program Case Study Example | Topics and Well Written Essays - 500 words
BHP Billitons Vacation Program - Case Study Example Being a chemical engineer, it has always been my dream desire to associate myself with a company, which adopts highest standards of professionalism and values better performances. BHP Billiton believes in equality in all it does. The Company expresses its dedication towards growing a rich culture, diverse workforce and providing a work environment in which every employee is treated fairly, respected and has the opportunity to contribute to business success - while always being given the opportunities to realize their full potential as individuals. I am sure everybody would love to perform still better if provided such a working environment. I am no exception to this temptation and feel quite excited about the vacation program to secure a head start for my career. The resources sector is a highly growth potential sectors today as the world's demand for resources continues to increase. Therefore if provided an opportunity, I'll try my best to make optimum use of the opportunity by learning the professionalism and skills required to excel in life.
Monday, November 18, 2019
Difference and progression between an IBCT, HBCT and a Striker Brigade Essay
Difference and progression between an IBCT, HBCT and a Striker Brigade Combat Team - Essay Example Furthermore, an army is a collection of different elements working together. These elements are allotted to units as per the organization. Each group or organization has different characteristics. In army organization, factors like mobility, firepower and elements allotted determine its operational role. With recent developments in technology, efficiency of weapon systems has increased. This improved efficiency means manpower requirement has decreased over time. There is a need for compact and capable army units that can undertake tasks efficiently. To cater for new advancements in technology, the US Army is planned to undergo restructuring at basic level. Previously, an army division was the basic unit of action. This meant that an army division had the capability to undertake independent action through its own command channel. A division typically consists of three brigades. This number may vary as per operational role of the division. A typical conventional infantry division consisted of approximately 15,000 to 25,000 soldiers and command was centralized at this level (Kahn and McLemore 12). However, with the new reorganization, brigade has been made the basic unit of action. It has approximately 5,000 soldiers and still possesses the capabilities of a typical conventional army d ivision. This brigade group is called Brigade Combat Team or BCT. This basic unit or BCT is mixed with different elements to form combat teams. They are discussed in detail; This combat unit comprises of simple foot infantry and has a combat arms unit for specialized elements and weapons that are dedicated with this combat unit. Because of foot infantry, this unit is easy to move and deploy. It is flexible in operational capabilities. However, this unit has the least firepower and protection. The brigade is organized into one Special Task Battalion, two Infantry Battalions (plain or foot), one Reconnaissance Squadron, one Field Artillery Battalion and one Support Battalion
Friday, November 15, 2019
A Reaction Paper On A Country Doctor English Literature Essay
A Reaction Paper On A Country Doctor English Literature Essay Franz Kafkas A country doctor is a story about a doctor who is called upon in the middle of the night to attend to a seriously ill young man .Hampered by lack of transport means and extreme weather conditions, the doctor is at pains to come up with solutions to his problems. This essay paper will attempt to systematically examine the challenges and frustrations that the doctor encounters as the story unfolds. This essay will also answer the questions as to why the story may be referred to as a nightmare as well as explore the major themes brought out in this artistic tale that is indeed a replica of Franz Kafkas generation and the current modern society. Challenges and Frustrations The doctor is in a dilemma He is challenged by the fact that he has no means of transport to take him to the home of the gravely ill young man, ten miles away. The doctors horse had died due to the icy winter. My own horse had died the previous night as a result of overexertion in this icy winter. The doctor is frustrated at this point because no one inà à the village was willing to assist him. My servant girl was at that very moment running around the village to see if she could borrow a horse but it was hopeless-I knew that. Out of frustration the doctor risks hurting himself by kicking the pigstys door. I kicked my foot against the cracked door of the pigsty which had not been used for years. The severe weather conditions pose a challenge to the doctor too. He has to endure the chilly snowstorm to go and attend to a patient. The doctor says, A severe snowstorm filled the space between him and me. The doctor does not hide his dilemma when he says, I stood there useless ,increasingly covered by snow , becoming all the time immobile. After treating the sick young man the doctor attempts to make his way home but the once strong and fat horses are old and tired, they move at a slow rate at which the doctor feels he will never reach home. Consider, We dragged slowly through the snowy desert like old men. The doctor is evidently frustrated when he says, Ill never come home at this rate. He becomes sad when he thinks of his home which was occupied by the Groom. In my house the disgusting groom is wreaking havoc, Rosa is his victim. The third challenge that the doctor encounters is the Groom. The doctor does not know how to deal with this stranger. First, when the groom brutally bites Rosa on her cheeks, the doctor only threatens the groom with words and calms down at once because he wanted to borrow a horse from the groom. At that moment, the doctor is almost the grooms slave. The groom eventually offers his horses to the doctor but decides to stay with Rosa instead of traveling with the doctor.à The doctor is therefore at crossroads. He does not know whether he should stay and protect Rosa from the brutal groom or go ahead and attend to the seriously ill Youngman. The doctor chose the later. However, as the story unfolds the frustrations of the doctor concerning this decision become apparent. Consider, I had to sacrifice Rosa as well, this beautiful girl, who lives in my house all year long and whom I scarcely notice-this sacrifice is too great. The doctor is challenged by poverty and too much work. He has dedicated his life to serving the district but is poorly paid. Consider, I am employed by the district and my duty do my duty to the full, right to the point where it is almost too much. Badly paid, but I am generous and ready to help the poor. The doctor has only one horse, when the horse dies the doctor lacks means of transport to enable him perform his duties efficiently. The doctor is evidently overworked. He is called at midnight to attend to patients. It seems he rarely sleeps since his night bell was always rung by villagers. When performing his duties the doctor is under pressure from the villagers. They want him to instantly cure their patients. The doctor is frustrated by this when he says. I am not a world improver. Themes The first theme that has been well brought out is the theme of suffering. At the beginning of the story, the doctor suffers psychologically because he has no means of transport to enable him reach the home of a seriously ill man. I was in great difficulty. An urgent journey was facing me.A seriously ill man was waiting for me in a village ten miles distant. The doctors horse had died and he was worried because no villager would lend him a horse. Of course, who is now going to lend his horse for such a journey? The extreme icy winter made the doctor to suffer. First his horse dies in the winter leaving him without means of transport and secondly the doctor has to endure the chilly weather to attend toà à the patient. I stood there useless, increasingly covered by snow, becoming all the time more immobile. Rosa suffers when the groom bites her on the cheeks. On the girls cheeks are red marks from two rows of teeth. Rosa further suffers when the doctor leaves her to stay with the evil groom against her will. No, screams Rosa and runs into the house with an accurate premonition of the inevitability of her fate. The sick young man suffers too. The young man suffers from a deadly wound that is infested with worms. Consider, On his right side, in the region of the hip, a wound the size of the palm of ones hand had opened up. The young man having lost hope of living tells the doctor, Doctor let me die. The second theme found in this story is blame. The doctor blames his failure to attend t o a seriously ill patient on his lack of a horse. Consider, But the horse was missing- the horse. The doctor further blames the villagers for unnecessarily summoning him to attend patients who according to the doctor were just feigning illness. He blames the villagers further for not assisting him in time of need. Consider, My servant girl was at that very moment running around the village to see if she could borrow a horse but it was hopeless. The country doctor as a narrative constantly places blame for his failure on others, on the lack of horses, on the groom, on the villagers, on the young man. His narrative attitude is one of; if I have failed it is not my fault, but rather the fault of others (Gray 2009) Exploitation is another theme found in this story. Exploitation is unfair treatment of someone or use of a situation in a way that is wrong in order to get some benefit (Wikipedia, 2009) the groom appears at a time when the doctor is need of transport means and takes advantage of the situation to take Rosa against her will. I see how in addition she chases down the room putting all the lights in order to make herselfà impossible to find. The theme of betrayal is also evident in this shortà à story. The doctor betrays his house help when he leaves he in the hands of the brutal groom. I had to sacrifice Rosa as well ,this beautiful girl who lives in my house all year long and whom I scarcely notice-this sacrifice is too great. He witnesses the bachelor force himself upon the house maid but rather than stay to access and disarm the stranger, the doctor allows the steeds to carry him off as the screams of his housemaid echo through the winter night. (Hemphill 2009) This short story may be called a nightmare. The doctor concludes that the sick young man is feigning illness after a brief examination. The doctor only observed the heartbeat of the patient. In his reasoning the patient was only seeking attention that he was not sick. The doctor in this story does not operate the way doctors in real world operate. Alex Hemphill observed that Franz Kafkas A country doctor is written in a stream of consciousness and includes all the making of a nightmare (2009) When the doctor kicked the door of the pigsty there emerged the groom and the two horses mysteriously. This is absolute fantasy and cannot happen in a real world.. Two horses, powerful animals with strong flanks shoved their way one behind the other. A country doctor can be read as fulfillment fantasy motivated by self exculpation (Gray 2009) Conclusion The doctor in Franz Kafkas -A country doctor is a reflection of some people in the society who sacrifice their lives to serve everyone but their efforts are hardly noticed by anyone. They are the unseen heroes of national development who would rather die than fail duty. Though frustrated by environment and a society that does not appreciate them, such people do not fear to encounter the challenges that lie ahead of them. Perhaps the doctor sums everything in his story by asserting that, To write prescriptions is easy but to come to an understanding with people is hard.
Wednesday, November 13, 2019
The Pros and Cons of the Two World Wars :: Pro Con Essays
One would like to think about a world war as a war for the improvement of the whole world, but history ascertains that that was not the case in the two world wars of the twentieth century. Both world wars had vast global effects, which affected almost everyone in the world. The effects had both positive and negative aspects. The positive effects, in the areas of technology, world peace and global economy, make world wars look like ââ¬Å"wars for goodâ⬠but the massive destructions of the human lives supersede them all, as Voltaire said, ââ¬Å"No opinion is worth burning your neighbor forâ⬠(Bulliet et al. 468). One can never put the world wars into the black-and-white categories of ââ¬Ëgoodââ¬â¢ and ââ¬Ëbadââ¬â¢ into which they have often been placed. But it will be interesting to explore the positive and negative effects of the wars, which changed the world forever as shown in The Earth and Its Peoples: A global History by Richard W. Bulliet et al., his torical films like History Channelââ¬â¢s Manhattan Project - The Century and Heritage: Jews and Civilizations -a documentary by Brian Winston. The twentieth century began with a period of relative peace and economic growth in most parts of the world. But on June 28, 1914, ââ¬Å"the assassination of the Archduke Franz Ferdinand triggered a chain of eventsâ⬠and escalated into a global war because of the competition between nationalism and imperialism as practiced by major European powers (Bulliet et al. 752-753). Britain, France and Russia formed Entente, ââ¬Å"understanding,â⬠against the ââ¬Å"Triple Allianceâ⬠of Germany, Italy and Austria-Hungary. In April 1917, United States declared war on Germany, mainly because of which ââ¬Å"on November 11 of 1918 at 11 A.M., the guns on the Western Front went silentâ⬠(Bulliet et al. 762). ââ¬Å"On June 28, 1919, the German delegates reluctantly signed the Treaty of Versaillesâ⬠(Bulliet et al. 763). The Peace Treaty of Versailles obliged the Germans to accept ââ¬Å"responsibility for causing all the loss and damageâ⬠of the war (Bulliet et al. 763). The hostile Germany was humiliated and forced to pay for a large deal of war reparations. The open hostility and simmering feelings of revenge in German soldiers after the treaty foreshadowed the start of World War II. Second World War ââ¬â often called a continuation of First World War, started in 1939 with Germanyââ¬â¢s invasion of Poland.
Sunday, November 10, 2019
Attitudes Towards War in A Farewell to Arms by Ernest Hemingway Essay
Ernest Hemingway was one of the most influential writers of the Modern period. After being rejected from the army, Hemingway entered the war in 1917 as an ambulance driver on the Italian front. Hemingwayââ¬â¢s relationship with the war could have been his reason for writing his novel A Farewell to Arms. A Farewell to Arms takes place in Italy in World War I. The novel tells of the conflicts of an American ambulance driver on the Italian front, Frederick Henry, and his difficulties with war, love and death. In this particular novel, Hemingway expresses several different attitudes towards war through the characters Frederick Henry, Lieutenant Rinaldi, and Gino. World War I has no extreme effect on Frederick Henry. He feels as though it is not his war to fight since his country has very little to do with it. Henry does not even realize the seriousness of the war until it takes its toll on him. Frederick Henry mentions, ââ¬Å"Well, I knew I would not be killed. Not in this war. It did not have anything to do with me. It seemed no more dangerous to me than war in the moviesâ⬠(37; ch. 7). The war is no more than another adventure to Frederick Henry. It seems he is in the war just to have something to do. Catherine says to Henry â⬠ââ¬ËWhy did you join up with the Italians?ââ¬â¢ ââ¬ËI was in Italy,ââ¬â¢ I said, ââ¬Ëand I spoke Italian'â⬠(22; ch. 5). Clearly Henry does not care much for the war. He feels uncomfortable with the passion others feel for it, such as Gino, and Henry exemplifies this when he mentions, ââ¬Å"I was always embarrassed by the words sacred, glorious, sacrifice and the expression in vainâ⠬ (184; ch. 27). He goes on to say, ââ¬Å"I had seen nothing sacred, and the things that were glorious had no gloryâ⬠¦Ã¢â¬ (185; ch. 27). Lieutenant Rinaldiââ¬â¢s outlook on the war is depressing, and he feels as thought he war has torn his entire world apart. Rinaldi used to the happy go lucky man who always had a couple of drinks and a good time until the war truly takes its toll on him. ââ¬Å"The war is killing me. I am very depressed by itâ⬠(167; ch. 25). He is telling this to Frederick Henry after a long separation period when Henry was in the hospital. Rinaldi has clearly changed and Henry notices right away. Unlike Henry, Lieutenant Rinaldi seemsà to get a sense of belonging from the war, and he felt like he was needed as a talented surgeon. As soon as Rinaldi is no longer needed for operating anymore, he no longer feels he is needed in the war, and his place in society becomes unclear. Rinaldi comments to Henry, ââ¬Å"I donââ¬â¢t operate now and I feel like hell. This is a terrible war baby. You believe me when I say itâ⬠(167; ch. 25). Gino is the man who shows Henry around Gozoria after Henryââ¬â¢s return from Milan. Gino thinks of the war as a big opportunity to show loyalty for his country. All he wants to do is make a difference in the army, and he almost refuses to admit to the harsh realities of war. Gino believes that all great acts are done strictly out of the goodness in peopleââ¬â¢s hearts and are done only to be loyal patriots. Gino says to Henry, ââ¬Å"We wonââ¬â¢t talk about losing. There is enough talk about losing. What has been done this summer cannot have been done in vainâ⬠(184; ch. 27). Gino clearly thinks all men should be as patriot as he is, and does not seem to understand those who are not. Henry realizes this and respects Ginoââ¬â¢s opinions and beliefs. ââ¬Å"Gino was a patriot, so he said things that separated us sometimes, but he was also a fine boy and I understood his being a patriot. He was born oneâ⬠(185; ch. 27). Frederick Henry, Lieutenant Rinaldi, and Gino are very different characters with very different attitudes towards the war in the novel A Farewell to Arms. Hemingway uses his unique style to show the different opinions through his Hemingway heroes. All of these characters have different views on war, and this shows Hemingwayââ¬â¢s respect for all of these opinions.
Friday, November 8, 2019
Aroma Compounds and Their Odors
Aroma Compounds and Their Odors An odor or odour is a volatile chemical compound that humans and other animals perceive via the sense of smell or olfaction. Odors are also known as aromas or fragrances and (if they are unpleasant) as reeks, stenches, and stinks. The type of molecule that produces an odor is called an aroma compound or an odorant. These compounds are small, with molecular weights less than 300 Daltons, and are readily dispersed in the air due to their high vapor pressure. The sense of smell can detect odors are extremely low concentrations. How Odor Works Organisms that have a sense of smell detect molecules by special sensory neurons called olfactory receptor (OR) cells. In humans, these cells are clustered at the back of the nasal cavity. Each sensory neuron has cilia that extend into the air. On the cilia, there are receptor proteins that bind to aroma compounds. When binding occurs, the chemical stimulus initiatesà an electric signal in the neuron, which transmits the information to the olfactory nerve, which carries the signal to the olfactory bulb in the brain. The olfactory bulb is part of the limbic system, which is also associated with emotions. A person may recognize an odor and relate it to an emotional experience, yet might be unable to identify the specific components of a scent. This is because the brain doesnt interpret single compounds or their relative concentrations, but the mix of compounds as a whole. Researchers estimate humans can distinguish between 10,000 and one trillion different odors. There is a threshold limit for odor detection. A certain number of molecules need to bind olfactory receptors to stimulate a signal. A single aroma compound may be capable of binding to any of several different receptors. The transmembrane receptor proteins are metalloproteins, probably involving copper, zinc, and perhaps manganese ions. Aromatic Versus Aroma In organic chemistry, aromatic compounds are those that consist of a planar ring-shaped or cyclic molecule. Most resemble benzene in structure. While many aromatic compounds do have an aroma, the word aromatic refers to a specific class of organic compounds in chemistry, not to molecules with scents. Technically, aroma compoundsà include volatile inorganic compounds with low molecular weights that can bind olfactory receptors. For example, hydrogen sulfide (H2S) is an inorganic compound that has a distinctive rotten egg scent. Elemental chlorine gas (Cl2) has an acrid smell. Ammonia (NH3) is another inorganic odorant. Aroma Compounds by Organic Structure Organic odorants fall into several categories, including esters, terpenes, amines, aromatics, aldehydes, alcohols, thiols, ketones, and lactones. Here is a list of some important aroma compounds. Some occur naturally, while others are synthetic: Odor Natural Source Esters geranyl acetate rose, fruity flowers, rose fructone apple methyl butyrate fruits, pineapple, apple pineapple ethyl acetate sweet solvent wine isoamyl acetate fruity, pear, banana banana benzyl acetate fruity, strawberry strawberry Terpenes geraniol floral, rose lemon, geranium citral lemon lemongrass citronellol lemon rose geranium, lemongrass linalool floral, lavender lavender, coriander, sweet basil limonene orange lemon, orange camphor camphor camphor laurel carvone caraway or spearmint dill, caraway, spearmint eucalyptol eucalyptus eucalyptus Amines trimethylamine fishy putrescine rotting meat rotting meat cadaverine rotting meat rotting meat indole feces feces, jasmine skatole feces feces, orange blossoms Alcohol menthol menthol mint species Aldehydes hexanal grassy isovaleraldehyde nutty, cocoa Aromatics eugenol clove clove cinnamaldehyde cinnamon cinnamon, cassia benzaldehyde almond bitter almond vanillin vanilla vanilla thymol thyme thyme Thiols benzyl mercaptan garlic allyl thiol garlic (methylthio)methanethiol mouse urine ethyl-mercaptan the smell added to propane Lactones gamma-nonalactone coconut gamma-decalactone peach Ketones 6-acetyl-2,3,4,5-tetrahydropyridine fresh bread oct-1-en-3-one metallic, blood 2-acetyl-1-pyrroline jasmine rice Others 2,4,6-trichloroanisole the scent of cork taint diacetyl butter scent/flavor methyl phosphine metallic garlic Among the smelliest of the odorants are methyl phosphine and dimethyl phosphine, which can be detected in extremely low amounts. The human nose is so sensitive to thioacetone thatà it can be smelled within seconds if a container of it is opened hundreds of meters away. The sense of smell filters out constant odors, so a person becomes unaware of them after continuous exposure. However, hydrogen sulfide deadens the sense of smell. Initially, it produces a strong rotten egg smell, but binding of the molecule to odor receptors prevents them from receiving additional signals. In the case of this particular chemical, the loss of sensation can be deadly, as it is extremely toxic. Aroma Compound Uses Odorants are used to make perfumes, to add odor to toxic, odorless compounds (e.g., natural gas), to enhance the flavor of food, and to mask undesirable scents. From an evolutionary standpoint, a scent is involved in mate selection, identifying safe/unsafe food, and forming memories. According to Yamazaki et al., mammals preferentially select mates with a different major histocompatibility complex (MHC) from their own. MHC can be detected via scent. Studies in humans support this connection, noting its also affected by the use of oral contraceptives. Aroma Compound Safety Whether an odorant occurs naturally or is produced synthetically, it may be unsafe, especially in high concentrations. Many fragrances are potent allergens. The chemical composition of fragrances is not regulated the same from one country to another. In the United States, fragrances in use before the Toxic Substances Control Act of 1976 were grandfathered in for use in products. New aroma molecules are subject to review and testing, under the oversight of the EPA. Reference Yamazaki K, Beauchamp GK, Singer A, Bard J, Boyse EA (February 1999). Odortypes: their origin and composition.ââ¬â¹ Proc. Natl. Acad. Sci. U.S.A. 96 (4): 1522ââ¬â5.Wedekind C, Fà ¼ri S (October 1997). Body odour preferences in men and women: do they aim for specific MHC combinations or simply heterozygosity?. Proc. Biol. Sci. 264 (1387): 1471ââ¬â9.
Wednesday, November 6, 2019
Free Essays on Descartes Existence Of The Perfect Being
In his meditations, Descartes points out that there are three types of ideas; they can be innate, adventitious, caused by things outside of oneââ¬â¢s self, and others that can be invented by us, such as ideas of mermaids or unicorns. After he concludes that God must necessarily exist, which will be discussed in more detail later on in this paper, he closes in to the fact that his idea of the Perfect Being cannot be adventitious, coming from without, nor can it be invented by him. Thus, this idea must be innate since he has a clear and distinct perception of Godââ¬â¢s existence, and that Descartes must have been created by God with such an idea already in him. The idea of a Perfect Being in Descartesââ¬â¢ mind consists of an infinite, eternal, immutable, independent, supremely intelligent as well as a powerful substance, which created him and everything else. Thus he realizes that the idea of God must have far more objective reality than he has formal reality because God is an infinite substance where as he himself is only a finite substance. Having explained the idea of Descartesââ¬â¢ perfect being lets go into more detail on the process he uses to prove that such being actually exists. Descartesââ¬â¢ proof of the existence of God occurs in the Third Meditation. He builds his entire argument upon his proof in the previous meditation that in order for him to think, he must exist. From this single observation, Descartes notices that the idea of his existence is very clear and distinct in his mind; based upon this clarity and the fact that he has just determined his own existence, he deduces a rule such that the things that he sees as very clear and very distinct are all true. Descartes starts his proof by dividing ââ¬Å"thoughtâ⬠into four categories; ideas (concepts), volitions (choices), emotions (desires), and judgments (beliefs). He then breaks down these categories to discover which types of thoughts can yield error. The first thing to ... Free Essays on Descartes Existence Of The Perfect Being Free Essays on Descartes Existence Of The Perfect Being In his meditations, Descartes points out that there are three types of ideas; they can be innate, adventitious, caused by things outside of oneââ¬â¢s self, and others that can be invented by us, such as ideas of mermaids or unicorns. After he concludes that God must necessarily exist, which will be discussed in more detail later on in this paper, he closes in to the fact that his idea of the Perfect Being cannot be adventitious, coming from without, nor can it be invented by him. Thus, this idea must be innate since he has a clear and distinct perception of Godââ¬â¢s existence, and that Descartes must have been created by God with such an idea already in him. The idea of a Perfect Being in Descartesââ¬â¢ mind consists of an infinite, eternal, immutable, independent, supremely intelligent as well as a powerful substance, which created him and everything else. Thus he realizes that the idea of God must have far more objective reality than he has formal reality because God is an infinite substance where as he himself is only a finite substance. Having explained the idea of Descartesââ¬â¢ perfect being lets go into more detail on the process he uses to prove that such being actually exists. Descartesââ¬â¢ proof of the existence of God occurs in the Third Meditation. He builds his entire argument upon his proof in the previous meditation that in order for him to think, he must exist. From this single observation, Descartes notices that the idea of his existence is very clear and distinct in his mind; based upon this clarity and the fact that he has just determined his own existence, he deduces a rule such that the things that he sees as very clear and very distinct are all true. Descartes starts his proof by dividing ââ¬Å"thoughtâ⬠into four categories; ideas (concepts), volitions (choices), emotions (desires), and judgments (beliefs). He then breaks down these categories to discover which types of thoughts can yield error. The first thing to ...
Monday, November 4, 2019
Broken windwo theory in crime Essay Example | Topics and Well Written Essays - 750 words
Broken windwo theory in crime - Essay Example For instance, in the real life situation, if the governments of the concerned states ensure that they institute proper monitoring policies, the state will have minimal issues to report that would relate to vandalism, since the urban areas are constantly under check. In fact, this is to mean that the number of rising cases of crimes would reduce on a higher rate, resulting in a situation whereby the country would be a more peaceful place prior to the scrutiny processes. With the introduction of the theory in the early 1980s, it is expected that the beneficiaries of the theory have had immense benefits in terms of the restoring sense in the communal sphere, through reduced occurrences of crime. Over the years, it can arguably be justified to make the assumption that the theory has been a motivation to the complete banning of crime in the public, through restructuring of the policies of crime monitoring. Despite the fact that the theory has been debated on its validity and practicality, it is recommended that the positives of the theory be applied. In the real life setting, the theory can be applied by the police taking part in the initiatives to conduct constant patrols in the streets so as to avert implementation of any kind of crimes that might have been planned. The theory can also be applied practically through establishment of community policing programs. With community policing functional in the society, it is obvious that both parties will join forces in ensuring that crime is forestalled collectively. Studies indicate that the tough economic conditions have resulted in a lot of youths indulging in criminal activities. All these can only be handled if the police forces restructure their policies on handling crime in the society. The costs of prevention can indeed not be measured alongside curbing of the effects. In
Friday, November 1, 2019
Ethics Essay Example | Topics and Well Written Essays - 250 words - 24
Ethics - Essay Example The line between doing the job and meeting some pre-conceived notion is not only immoral but also suggests the kind of society that exists. The roles have been wrongly defined and this is the reason why many people end up being discriminated on one context or the other, not necessarily because of their own doing. The human resource policy can address these issues by being very critical about any elements that are being seen as discriminatory. It can raise these points so that the anomalies are done away with at the earliest (Bellizzi and Hasty, 2001). More so when the organization wishes to send out advertisements, these must be checked by the relevant staff within the human resources management department to make sure that discrimination and its related nuances are not being conveyed from the realms of the organization. In essence, discrimination is a major issue that many organizations in this day and age face, and it would be significant to resolve this problem once and for
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