dermal absorption of chemical contaminants from soil
Báo cáo hóa học: "Dermal absorption of aromatic amines in workers with different skin lesions: a report on 4 cases" doc
... relationships of internal to external exposure Additionally we assessed the influence of smoking on internal exposure by measurement of cotinine in the urine of the workers In view of the explanatory ... protective effects of skin creams to reduce the dermal absorption were not evident in our study group On the contrary, there are hints that barrier creams might enhance the dermal absorption [13] ... uptake of the lipophilic o-toluidine It is well known that damaged epidermal barrier leads to a higher dermal absorption of chemicals [10,11] Internal exposure to solvents miscible in water is...
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Báo cáo nghiên cứu khoa học " METHODS OF PHYTOPHTHORA ISOLATION FROM SOIL, ROOT AND INFESTED PLANT OF BLACK PEPPER AND OTHER CROPS " doc
... isolation from soil and root of several crops Solution Crops Durian Aquilaria Cafe Soil Total of soil samples 27 20 33 Sample isolated (%) 22.2 25.0 18.1 The Phytophthora isolation from soil ranged from ... obtained from isolation of Phytophthora on black pepper, this fungus has been isolated in several plants (Table 8) 3.2 Isolation of Phytophthora from soil and root of several crops Table Effect of ... ability of chemical for saprophyte fungi in Phytophthora isolation a Isolated ability Total of baits Bait isolated (%) 50 50 50 17 50 12 50 Table Effect of Viben 50BTN chemical on isolation of Phytophthora...
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Feasibility study of removal of surface contaminants from solid surfaces using water jets with bubbles and ultrasound
... Mass of beam Length of beam Width of beam Height of beam Second moment of area of beam Young’s modulus (i: ice, a: aluminium) Height of section (i: ice, a: aluminium) Distance between midpoint of ... diameter of the bubble surface tension coefficient of water final velocity of bubble Approach velocity of bubble Acceleration/deceleration of bubble Angle of impingement Upward force of the rising ... heat ratio of air interfacial tension Radius of bubble Density of water gravitational acceleration thermal diffusivity of gas speed of sound in water speed of sound in air shear viscosity of water...
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Accurate and sensitive determination of selected contaminants from food packaging materials
... 1.5 14 17 Migration of monomers / additives from polymers used in food contact materials 1.6 State -of- the-art analytical methods for determining amount of 18 contaminants from food packaging ... XV - LIST OF TABLES Page Table 1.1 Summary of results available from other research groups 11 Table 2.1 Recoveries of analytes obtained using different types of SPE elution solvents from the optimization ... protects the bare metal from interactions with the food components Flavor changes may result from the interaction of the coating components or from adsorption of flavor agents from the packed food...
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Báo cáo " Effects of biosolids application on soil chemical properties in peri-urban agricultural systems " doc
... that application of biosolids at a rate of 11 t ha-1 increased availability of Cu in soil, but that neither Cu nor Zn was leached from surface soil [1] Conclusions Application of biosolids as ... biosolids treatment involved application of 7-63 t ha-1 of composted manure or 10-90 t ha-1 of chicken manure incorporated into the top 20 cm of the soil The topsoil bulk density was 1.2 t m-3 for ... disposal of waste products and has the beneficial aspects of adding valuable plant nutrients and organic matters to soil [10] Biosolids is a beneficial soil amendment, especially for arable soils of...
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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx
... chemical and physical properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pesticides and Toxic Substances) and Regional Offices ... number of molecular structures The values of these latter parameters, in most instances, must be derived from measurements or from the expert judgment of specialists in that particular area of chemistry ... efforts involving thousands of chemicals In fact, physical and chemical properties have only actually been measured for about percent of the approximately 70,000 industrial chemicals listed by the...
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Báo cáo Y học: Chemical structures and immunolocalization of glycosphingolipids isolated from Diphyllobothrium hottai adult worms and plerocercoids ppt
... respectively Asterisks denote contaminants of nonsugar origin (C) MALDI-TOF MS spectrum of intact A-4 (D) MALDI-TOF MS spectrum of intact A-5 Values in (C) and (D) indicate m/z of sodium adducted molecular ... percentages of the total component Fig Methylation analysis and MALDITOF MS analysis of A-4 and A-5 (A) GLC chromatogram of partially methylated alditol acetates derived from A-4 (B) GLC chromatogram of ... Purification of glycolipids Total lipids were extracted from adults (about 28 g) and plerocercoids (about 1.4 g) of D hottai using successive mixtures of chloroform/methanol (2 : 1, v/v) and chloroform/methanol/water...
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Báo cáo khoa học: The phosphate site of trehalose phosphorylase from Schizophyllum communeprobed by site-directed mutagenesis and chemical rescue studies pptx
... of 50 mm (Table 2) Likewise, under conditions of chemical rescue of K512A by 200 mm of propargylamine, kcat Km for phosphate increased from a value of 0.014 m)1ặs)1 at pH 6.6 to 0.023 m)1ặs)1 ... value, some of the afnity of wild-type trehalose phosphorylase for phosphate Therefore, to what extent the function of the original side chain of Lys512 can be gauged by the results of our chemical ... concentration of phosphate was varied at a constant concentration of a,a-trehalose (400 mm) in the absence or presence of different constant concentrations of vanadate Enzymatic rates of hydrolysis of a,a-trehalose...
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Báo cáo khoa học: " Effects of liming and gypsum regimes on chemical characteristics of an acid forest soil and its leachates" ppsx
... throughout the profile as reflected by an increase of Ca concentration in soil 2+ leachate The presence of excess Ca in an acid system is capable of desorbing acid cations (Al H from the exchange ... REFERENCES Adams F (1984) Soil Acidity and Liming, 2nd edn Am Soc of Agrie Inc; Crop Sci Soc of Am Soil Sci Soc of Am Inc Madison, WI, USA, 265 p Alva AK, Sumner ME (1990) Amelioration of acid infertility ... aluminum and calcium in the soil solution of acid soils on root elongation of glycine max cv Forrest Aust J Agri Res 39, 319-338 Brunner W, Blaser P (1989) Mineralization of soil organic matter and...
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industrial ecology approach to management of fly ash from fluidized bed combustion production of slow-release fertilizer and soil conditioner
... soil and the nutrition of the plant in the tropics By means of liming of a Oxisol and a Ultisol from Hawaii, curves were created that showed an increase of pH of the soil from 4.8 to In the Oxisoles ... Amendment of Soils In southeastern US and Puerto Rico, many soils are acid and the subsoil is acid and infertile For example, there are 209,894 of soil belonging to the Ultisols order and 64,801 of ... (Santiago, 1994) Of these, 36,532 of the Ultisols are soils of the Consumo series, and 5,262 of Oxisols are in the Coto series These soils, in contact with water and in the presence of aluminum,...
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kinetics of trace metals sorption on and desorption from soils developing predictive models
... as free and complexed ions in soil solutions of all types of soils Concentration of Cu in soil solutions varies from to 135 µg/L (0.047 to 2.1 µM), depending on soil types and the experimental ... kinetics of trace metals sorption and desorption on a variety of soils The kinetics experiments were conducted with a stirred-flow method A number of soil samples, which cover a wide range of soil ... importance of soil sorbents for the binding of trace metals in soils 2.2.1 Metal Concentration in Soils The metal concentration in soils may directly affect both the amount and the rate of metals...
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Analysis of Chemical Toxicants and Contaminants in Foods
... other chemical and microbial contaminants in food and feed Journal of the Association of Official Analytical Chemists Same coverage as the compendium of the AOAC, but including the results of validation ... references, such as the following: Official Methods of Analysis of the Association of Official Analytical Chemists.4 This compendium contains detailed methods for the analysis of drugs, pesticides, metals, ... uses in the food industry, such as in removal of caffeine during decaffeination of coffee, removal of cholesterol from powdered eggs, and defatting of foods for either consumption or analytical...
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Removal of congo red from wastewater by adsorption onto waste red mud
... Fe(III)/Cr(III) Namasivayam of dairy (11) and coworkers from employed solutions of using containing congo fly ash and coal(g) et al (12) have of nickel of this a textile such of chlorophenol study ... initial with stages lapse of of time 90 uptake for all the dye of dye decreased concentrations curves monolayer increased from were single, smooth coverage of on dye and outer of adsorbent 20 40 60 ... samples varied from no change the data were for of the effect dye after Langmuir taken from and batch of agitation dose in absorbance removal and adsorbent desorption adsorption of 10 mg/L greater...
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Báo cáo y học: "Antimicrobial Susceptibilities of Brucella Isolates from Various Clinical Speciemens"
... hospital of the Medical Faculty of Van Yuzuncu Yil University (Van, Turkey) Identification methods: Identification of species was made on the basis of the requirement of CO2 for growth, production of ... administration of TIG, the conservation of TIG because of promising results of its use in the treatment of multiresistant bacterial infections, and overall cost were considered as limitations of such ... the results of MICs of TIG The MIC50 and MIC90 values of relevant antibiotics are shown in Table http://www.medsci.org Int J Med Sci 2011, 200 Table MIC range, MIC50 and MIC90 values of antimicrobial...
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Báo cáo y học: "ISOLATION OF CHLAMYDIA PNEUMONIAE FROM SERUM SAMPLES OF THE PATIENTS WITH ACUTE CORONARY SYNDROME"
... lack of standardized criteria for laboratory diagnostics of chronic C pneumoniae infection as well as contradictory information about distribution of the pathogen throughout of the tissues of human ... µl of DNA was added to reaction mixture containing 1x PCR buffer (Silex, Moscow, RF) containing 10 mM Tris-HCl, pH 8,3 , 2.5 mM MgCl2, 15 pmol of each primer, 200 µM of each of dNTPs and U of ... efficiency of C pneumoniae DNA extraction Sufficient recovery of final PCR product has been also seen when protein A from Staph aureus has been used for isolation of C pneumoniae from whole serum...
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Báo cáo y học: " Differentiation of convulsive syncope from epilepsy with an implantable loop recorder Khalil Kanjwal, Beverly Karabin, Yousuf Kanjwal, Blair P Grubb"
... activity that would last anywhere from 30 seconds to one minute He would often be incontinent of urine and have a postictal period of confusion and disorientation lasting from ten to twenty minutes, ... transient loss of consciousness with spontaneous recovery occurs as consequence of a period of cerebral hypoxia A number of conditions may disturb cerebral oxygenation, ranging from cardiac arrhythmias ... 41-year-old woman was referred for evaluation of recurrent convulsive episodes At the age of 29 years, she began to experience episodes of sudden loss of consciousness associated with convulsive...
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Characteristics of hydrogen production from food waste and waste activated sludge
... was supplemented with 200 mg of KH2PO4, 14 mg of MgCl2•4H2O, mg of Na2MoO4•4H2O, mg of CaCl2•2H2O, 2.5 mg of MnCl2•6H2O, and 10 mg of FeCl2•4H2O, which was modified from Lay et al (1999) NaHCO3 ... Stoichiometrically, Clostridium sp can produce moles of hydrogen with mole of n-butyrate or moles of hydrogen with mole of acetate from mole of hexose In most cases using soluble defined substrates, ... 0:100 for 3.0 and 5.0 % of total VS concentrations could not be conducted because of low VS concentration of sewage sludge 20 mL of seed sludge and appropriate amounts of food waste and sewage...
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INFLUENCE OF PHOSPHORUS RUNOFF FROM AGRICULTURAL AREAS ON ENCLOSED SEA DOWNSTREAM
... between the amounts of the desorption of PO -P from g of soil of the agricultural area mixed with L of artificial seawater and the salinity of the seawater at pH 6,7 and 3- changed from the particulate ... runoff characteristics of PP were of the washout type The loading of PP from agricultural Table Values of the constants n and c and the correlation coefficient(R )of the regression n model of ... desorption of phosphorus from SS The soil was combined with artificial seawater, which was made by adding 32 g of NaCl, 14 g of MgSO4・7H2O and 0.15 g of Na2CO3 to liter of filtrated river water, at a soil...
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Tìm thêm: khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25