Disadvantages

Keywords: protein amino acide, pH, lowry method * Highly susceptible to contamination by buffers, biological materials and salts * Protein amino acid composition is extremely important, thus the choice of a standard is very difficult, especially for purified proteins * Absorbance is heavily influence by pH and ionic strength of the solution. General Considerations * […]

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the major systematic error sublimation of caffeine

Introduction: Coffee has been a popular drink since 20th century, not only because of its different colors and flavors due to different degrees of roasting, but also the effect on which it can keep you to stay awake and to finish your job. It is commonly known that the reason for coffee to possess this […]

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the METALLURGY OPTIONS FOR TUBING

The metallurgy of tubing is a very important factor while choosing tubing for a particular environment. Generally the tubing is made up of carbon or low alloy steels, martensitic stainless steel, Duplex stainless steel or other corrosion resistant alloys like Nickel-base alloy etc. METALLURGY FOR TUBING: Carbon steel is an alloy of carbon and iron […]

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The multiple emulsions

Introduction: Seifriz started his pioneering work about multiple emulsions since 1925, which is regarded as the fundamental knowledge in the later research. Multiple emulsions are complicated systems which are considered as “emulsions of emulsions” (Garti, 1996).In the outer continues phase, the droplets of the dispersed phase named as globules which contain even smaller dispersed droplets […]

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The Practice And History Of Alchemy Chemistry Essay

Alchemy, derived from the Arabic word al-kimia (ØلكيميØØ¡, ALA-LC: al-kÄ«miyā’), is both a philosophy and an ancient practice focused on the attempt to change base metals into gold, investigating the preparation of the “elixir of longevity”, and achieving ultimate wisdom, involving the improvement of the alchemist as well as the making of several substances described […]

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The prion diseases

Prion diseases or transmissible spongiform encephalopathy’s can be inheritable or transmissible, a common feature of the prion disease involves the change of the prion protein (PrPc) to the isoform PrPsc (Hu et al, 2007). Prion propagation involves a mechanism that changes PrPc to PrPsc in an autocatalytic way (Harris and True, 2006). PrPc is said […]

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The substitution reactions

Acknowledgement The preparation of this project on the topic-” substitution reactions.”: a profile’ would not have been possible without the valuable contribution of my TEACHERS. I would like to give most specially thanks to my CHE sir Dr. Ashish kumar who is my chemistry teacher to giving me the important guidelines during making this project. […]

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The swine flu

Currently, there has been an international concern and fear about the disease “The Swine” or Swine Flu. The main question that all the experts were worried about was whether the swine flu is an epidemic or a pandemic. An epidemic is defined as an outbreak of a contagious disease that can be widely spread and […]

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The drug metabolism

Introduction: If an exogenous microorganism enters the human body, this invokes the immune system to produce antibodies to come into contact with the foreign potentially pathogenic species and lead to its destruction. Although when drug molecules enter the human body this does not result in the synthesis of antibodies, due to their relatively small molecular […]

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The Trojan horses

Another type of malware that is not technically a virus because there is usually no auto-replication is a Trojan horse program, which seems to be something useful, as a free utility, but actually contains some kind of malware. The unhappy about a Trojan program that is running the software users willingly and still do not […]

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