Sunday, October 30, 2011
Thursday, October 27, 2011
Polytetrafluoroethylene (PTFE) is a versatile polymer used in a broad range of medical, industrial, and high technology applications.
Polytetrafluoroethylene or PTFE is a one of the major components in the fabric used to make safety clothes for those involved in heavy industries.China is the largest producer and consumer of PTFE in the world. The region, in recent years, increased the production capacity of PTFE, by aggressively debottle- necking existing plants and adding new facilities.
The Report conclude use of the polytetrafluoroethylene surgical membrane for pericardial closure in children is a safe procedure that helps prevent complications at reoperation.
Wednesday, October 26, 2011
Monday, October 24, 2011
- A bactericide or bacteriocide, abbreviated Bcidal, is a substance that kills bacteria and, ideally, nothing else. Bactericides are disinfectants, antiseptics or antibiotics.
- Spray applications of bactericides effectively inhibit mine acid formation for three or four months and have to be repeated several times a year to get effective control on active refuse and coal piles.
- Bactericidal antibiotics kill bacteria; bacteriostatic antibiotics slow their growth or reproduction.
- Potassium iodide, often combined with iodine, is a potent and fast-acting bactericide used in medical and dental applications.
- Ibuprofen from the nomenclature iso-butyl-propanoic-phenolic acid) is a nonsteroidal anti-inflammatory drug (NSAID) used for relief of symptoms of arthritis, fever, as an analgesic (pain reliever), especially where there is an inflammatory component, and dysmenorrhea.
- Ibuprofen is used primarily for fever, pain, dysmenorrhea and inflammatory diseases such as rheumatoid arthritis.It is also used for pericarditis and patent ductus arteriosus.
- Ibuprofen is produced from the reactants isobutylbenzene, acetic anhydride, hydrogen, and carbon monoxide.
- Ibuprofen is known to have an antiplatelet effect, though it is relatively mild and short-lived when compared with aspirin or other better-known antiplatelet drugs.
- Cellulose acetate (also known as zyl or zylonite), first prepared in 1865, is the acetate ester of cellulose.
- Cellulose acetate is used as a film base in photography, as a component in some adhesives, and as a frame material for eyeglasses.
- It is also used as a synthetic fiber and in the manufacture of cigarette filters and playing cards.
- When exposed to heat, moisture or acids in the film base begin to deteriorate to an unusable state, releasing acetic acid with a characteristic vinegary smell, causing the process to be known as "vinegar syndrome."
Saturday, October 22, 2011
Oxalate precipitation is widely used in the synthesis of titanate raw materials. These oxalates are generally highly insoluble, they form particles that are readily filtered from the liquid and easy to handle.
The titanium oxalate complex could degrade the aqueous iodine solution (tincture iodine 2%) which was used as a model for wastewater via photochemistry reaction under UV irradiation
Isobutyric Acid is a clear, colorless liquid with an obnoxious, penetrating odor. Isobutyric acid, also known as 2-methylpropanoic acid, is a carboxylic acid with structural formula (CH3)2-CH-COOH. It is found in the free state in carobs (Ceratonia siliqua) and in the root of Arnica dulcis, and as an ethyl ester in croton oil.
The decreasing supply of world crude oil, the increasing amounts of food industry by-products, and
the increasing consumer demand for organic natural products in food additives, pharmaceutical products, and
preservatives, the production of butyric acid by microbial fermentation is becoming economically attractive
Ergotamine is contraindicated in peripheral vascular disease (thromboangiitis obliterans, luetic arteritis, severe arteriosclerosis, thrombophlebitis, Raynaud's disease), coronary heart disease, hypertension, impaired hepatic or renal function, severe pruritus, and sepsis.
p-Xylene is an aromatic hydrocarbon, based on benzene with two methyl substituents. The “p” stands for para, identifying the location of the methyl groups as across from one another.
Paraxylene is primarily used as a basic raw material in the manufacture of terephthalic acid (TPA), purified terephthalic acid (PTA) and dimethyl-terephthalate (DMT). TPA, PTA and DMT are used to manufacture polyethylene terephthalate (PET) saturated polyester polymers. Polyesters are used to produce fibers ,films and plastic bottles. A small amount of PX is used as a solvent and to produce di-paraxylene and herbicides.
The PX market has seen strong growth driven by increasing PTA consumption in polyester manufacture.
Thursday, October 20, 2011
Wednesday, October 19, 2011
Rameez Khan - 9833872649 / 8828428174
Zeeshan Attarwala - 9773505709
For more information on Pear culture, take a look
- Nicotinamide, also known as niacinamide and nicotinic acid amide, is the amide of nicotinic acid (vitamin B3 / niacin).
- Nicotinamide is a water-soluble vitamin and is part of the vitamin B group.
- Nicotinic acid, also known as niacin, is converted to nicotinamide in vivo, and, though the two are identical in their vitamin functions, nicotinamide does not have the same pharmacologic and toxic effects of niacin, which occur incidental to niacin's conversion.
- Niacin is incorporated into nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP), although the pathways for nicotinamide and nicotinic acid are very similar.
Tuesday, October 18, 2011
Camptothecins (CPT) are one of the most important alkaloids of the 21st century because of their clinical applications against cancer and HIV-I.Camptothecin was isolated from the bark and stem of Camptotheca acuminata (Camptotheca, Happy tree), a tree native to China.
Camptothecin-11 destroys the cancerous cells and prevents the further division of these cells, they also induce the self-destruction of these cancerous cells, this mode of cancer treatment is cell specific and destroys only those affected cancerous cells.
At present, semisynthetic water-soluble camptothe- cin analogs, topotecan and irinotecan, are prescribed as clinical antitumor drugs through out the world. The worldwide market size of irinotecan / topotecan in 2003 was estimated at about US$1 billion.
Saturday, October 15, 2011
Phenethyl alcohol (PEA) or 2-phenylethanol is a simple aromatic primary alcohol.
Phenethyl alcohol (Phenylethyl alcohol) a colorless liquid used as an antimicrobial agent in pharmaceuticals.
Phenethyl alcohol is an alcohol with a pleasant floral odor. It is therefore a common ingredient in flavors and perfumery, particularly when the smell of rose is desired.
Phenethyl alcohol is also used as a flavor ingredient with an annual volume of use reported to be 2500 kg/year in the USA and 9900 kg/year in Europe.
Methylamine is the organic compound with a formula of CH₃NH₂. This colourless gas is a derivative of ammonia, but with one H atom replaced by a methyl group.
Methylamine is used as a building block for the synthesis of many other commercially available compounds. Over 1 million tonnes are produced annually.
Methylamine has many applications in various industries. It is an important intermediate in the manufacture of a variety of products including pharmaceuticals (e.g.,ephedrine), pesticides (e.g., 1-naphthyl-N-methyl carbamate, Vapam), explosives, surfactants, and accelerators.
The isosorbide is a heterocyclic compound obtained from reaction of the double dehydration of sorbitol, which is itself derived from the reaction of hydrogenation of glucose.
The advantage of isosorbide is that it can raise the use temperature and performance for moldable plastics.
Isosorbide can be substituted for other diols in order to create new polyesters, polycarbonates and polyurethanes that are partially or even completely bio-based.
Friday, October 14, 2011
- Antipyretics from the Greek anti, against, and pyreticus, (pertaining to fever) are drugs or herbs that reduce fever.
- Normally, they will not lower body temperature if one does not have a fever.
- Antipyretics cause the hypothalamus to override an interleukin-induced increase in temperature. The body then works to lower the temperature, result in a reduction in fever.
- Most antipyretic medications have other purposes.
- The most common antipyretics in the United States are Antipyretics and aspirin, which are used primarily as pain relievers.
- Non-steroidal anti-inflammatory drugs (NSAIDs) are antipyretic, anti-inflammatory, and pain relievers.
- There is some debate over the appropriate use of such medications, as fever is part of the body's immune response to infection.
It is a solvent commonly used in the manufacture of paint, varnish, glue, printing ink, insecticides, dyes and in the rubber and pharmaceutical product industries.
Mixed xylenes, generally manufactured in petroleum refining processes, are produced in the range of 6-7 million metric tonnes a year.meta-xylene, ortho-xylene and para-xylene. The three different forms are known as isomers.
Potassium permanganate (KMnO4) is one of the widely used inorganic chemicals worldwide and much information is available on its chemistry, manufacture and various use.
It has been used in fish ponds to treat common fish pathogens such as gill parasites and external bacterial and fungal infections.
Thursday, October 13, 2011
Tuesday, October 11, 2011
Sunday, October 09, 2011
Higher net worth criteria for uplinking & down linking
The purpose is to weed out middle men who are not very serious in starting the business
The net worth criteria for uplinking of non-news and current affairs channels and downlinking of foreign channels has been increased from Rs. 1.5 crore to Rs. 5 crore for the first channel and Rs. 2.5 crore for each additional channel. In the case of news and current affairs channels, the increase is even steeper — from Rs. 3 crore to Rs. 20 crore for the first channel and Rs. 5 crore for each additional channel
Saturday, October 08, 2011
Monday, October 03, 2011
- Taurine is a non-protein, non-essential amino acid which functions as a calmer of the central nervous system due to its inhibitory action.
- Taurine is the second most abundant amino acid in muscle tissue, with glutamine being the first.
- But it's not actually part of the muscle tissue. Rather, it's primarily in the amino acid pool within each muscle cell and is, in fact, not even a component of protein but remains free in our bodies.
- It does, however, act as the building block of other amino acids.
- Many experts consider taurine conditionally essential because intense exercise as well as other types of stress deplete the nutrient.