Privately Owned Critical Infrastructures SEC/470 Privately Owned Critical Infrastructure One privately owned infrastructure critical to the United States are chemical facilities. “The majority of Chemical Sector facilities are privately-owned: requiring DHS to work closely with the private sector and its industry associations to identify and prioritize assets‚ assess risk‚ develop and implement protective programs‚ and measure program
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TEA Dr. B.L. Wedzicha of t h e Procter D e p a r t m e n t of Food Science‚ U n i v e r s i t y of Leeds‚ describes t h e c h e m i s t r y of black t e a manufacture Tea is the m o s t w i d e l y c o n s u m e d beverage in the w o r l d . The economic importance of an annual w o r l d production of tea estimated to be in the region of 1-1·5 million tonnes has resulted in considerable attention being paid to the understanding of the chemical and physical changes w h i c h take place during tea
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Chapter II Review of Related Literature and Studies Related Literature Polystyrene Commonly known as ’Styrofoam’ that is one of the most widely used type of plastics. It is a strong plastic created from erethylene and benzine that can be injected‚ extruded‚ or blow molded; making it a very useful and versatile manufacturing material. It is also a rigid‚ transparent thermoplastic‚ which is present in solid or glassy state at normal temperature. But‚ when heated above its glass transition temperature
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I-III were confirmed by FT-IR‚ powder XRD and SEM studies. 2.1.1 Fourier transform infrared spectroscopy FT-IR spectra of BPM I-BPM III (Fig. 1a-1c) exhibited characteristic absorption bands of CTS ranges from 1637-1639 cm−1 which are attributed to amide I bands (C=O stretching mode along with an N–H deformation mode). Broad bands from 1130-978 cm−1‚ 1131-975 cm−1 and 1131-971 cm−1 were observed for phosphate stretching vibration in nano-HAP. The bands at 3438‚ 3435 and 3436 cm−1 were assigned to the
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Among the current fields of research in Biotechnology‚ research on drugs and vaccines targeting viral diseases such as HIV/AIDs has been of major importance given the high prevalence of these diseases across the world. HIV (Human Immunodeficiency Virus) is a type of virus that causes AIDS (Acquired Immune-deficiency Syndrome) (HIV and AIDS‚ n.d). The virus devastates the body’s defense mechanism‚ leaving a victim highly susceptible to opportunistic infections such as those caused by bacteria‚ fungi
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polypeptides. These proteins contain building blocks‚ called amino acids. There are 20 amino acids that serve as the building blocks. [2] These amino acids contain many amino acid residues (remaining portions of amino acids) which are linked together by amide bonds called‚ peptide bonds. “Proteins provide structural framework for the cells‚ regulation of cellular function‚ and enzyme activity.” (Scheppler‚ 2000). [3] There are three methods in order to determine the protein concentration of a certain
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Introduction Antibiotics are drugs that have been developed to destroy or show interference with the growth of microorganisms. The first antibiotic properties revealed were synthetic chemicals‚ particularly drugs containing arsenic‚ which were discovered by Ehrlich at the beginning of the 20th century. Sulphonamide inhibitors of folate metabolism were developed by Domagz in the 1930s which then followed with the development of the first true antibiotic‚ penicillin in the 1940s.(Wright 2011) Upon
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Preparation of Chitosan from Jazan Area Shrimp wastes and Investigation of Its Properties Preparation of Chitosan from Jazan Area Shrimp wastes and Investigation of Its Properties A Project submitted to the Physical Chemistry Branch In partial fulfillment of the requirements of Bachelor of Science (Chemistry) By Student #: Under the guidance of Dr. R. E. Azooz To Chemistry Department‚ Faculty of Science‚ Jazan University 2097-Jazan‚ Jazan‚ KSA 2012 1|Page Preparation of Chitosan from Jazan Area
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Experiment #1 Nucleophilic Aromatic Substitution of 2‚4-dinitrochlorobenze Name: Anouk Deck-Leger Student I.D: 9380868 Date performed: September 13th‚ 2010 Due Date: September 20th‚ 2010 Introduction: The company DNCB produces large amounts of 2‚4-dinitrochlorobenzene and they sell this product to treat against warts and severe and chronic hair loss. It can also be used as an alternative treatment for HIV. The supervisor notices an excess amount of m-aminobenzoic acid stored away which
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One should be careful which pigments are inserted in to their body. Pigment Red 22 is banned in cosmetics in Europe because of carcinogenic amides produced as side-products and due to the solubility the risks of cancer are high (ref extraction of tattoo pigments). Polycyclic aromatic hydrocarbons PAH are organic bonded with benzene rings (ref Ki-Hyun Kim)‚ has been reported to be found in black
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