The forensic science

Introduction of title The terms of “forensic science” cover those professions which are involved in the application of social and physical science to the criminal justice system. Forensic experts are expected to find out the details of method used, to substantiate the choice of the applied technique and to give their unbiased conclusions. Therefore, the […]

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The word perfume

Introduction: History of Perfume The word perfume itself is derived from the Latin per fume, which means “through smoke”. Due to the fact that the original use of aromatic materials was of burning incense, as an offering to the gods.1 Aromatic materials have been used for a variety of different purposes over the past thousand […]

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The genesis of elements

Introduction The periodic table is continually enriched with new elements synthesised by nuclear reactions in laboratories, but only 90 of all the elements occur naturally. Those are found between atomic numbers 1 to 92, which is from 1H to 92U, excluding the elements technetium (43Tc) and promethium (61Pm). The latter two are made artificially, even […]

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Thin layer chromatography (TLC)

It stands for Thin Layer Chromatography. It’s a simple technique used by chemists in separation of Mixtures in addition to supporting the identification of the separated compounds by comparing the “Retention Factor” of the separated compound with that of a known compound. The TLC plate on which the Thin Layer Chromatography is performed is usually […]

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The hydrogen bomb

INTRODUCTION The Hydrogen bomb was first suggested by Edward Teller in 1942 but active work on it was pursued in the summer of 1942 by Oppenheimer,Teller,Los Alamos and others. The first thermonuclear bomb was exploded in 1952 atEnewetak by the United States, the second in 1953 by Russia (then the USSR). Great Britain, France, and […]

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Determination of Vitamin C in Tablets

Keywords: determination of vitamin c by titration INTRODUCTION Nowadays, health has become the most important property of human’s life. Commonly, diets with high contents of fruits are protective against several human diseases such as cardiovascular diseases and even cancer. Therefore, people are putting more and more attention on antioxidant substances such as vitamin C which […]

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The Inditex-Zara case

INTRODUCTION In today’s highly competitive and global marketplace, the pressure on organizations to find new ways to create and deliver value to the customers grows even stronger. Market development combined with new sources of global competition has led to over-capacity in many industries. Putting an incredible pressure on price, as often is the critical competitive […]

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The lactate dehydrogenase

Enzymes: Enzymes are protein molecules which catalyst the biological reactions within living systems [23]. They provide a reaction surface to which a substrate can easily bind and a suitable environment for the reaction to occur. They bring the reactants together and orient them in such a way that they attain their transition-state configurations. They weaken […]

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