ddt dde and ddd in biological samples
Báo cáo y học: "Preformulation and stability in biological fluids of the retrocyclin RC-101, a potential anti-HIV topical microbicide/; potx
... dehydrogenase and its isoenzymes in vaginal fluid in vaginitis/vaginosis cases and in healthy controls Int J STD AIDS 2003, 14:270-273 32 Olmsted SS, Meyn LA, Rohan LC, Hillier SL: Glycosidase and proteinase ... remained present in human vaginal fluid (HVF) for at least 48 h after incubation at 37°C, suggesting that RC-101 would be stable in this biological fluid Formulation of RC-101 into a film maintained ... After signing informed consent and confirming eligibility, subjects completed a questionnaire and were then instructed on the use of the Instead Softcup® (Instead Inc., La Jolla, CA) [12] Instead...
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Báo cáo y học: " Degeneracy: a link between evolvability, robustness and complexity in biological systems" docx
... long-standing reductionist bias in the study of biological systems Concluding Remarks Understanding how biological systems can be complex, robust and evolvable is germane to our understanding of ... through planning) and those that evolve without planning is that in the former, components with multiple overlapping functions are absent [2] In standard planning practices, components remain as simple ... others Origins of complexity Complexity There are many definitions and studies of complexity in the literature [22-28] Different definitions have mostly originated within separate disciplines and have...
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A review on sample preparation and chromatographic determination of acephate and methamidophos in different samples
... 8515 samples were analyzed in year 2006 and 8686 samples in year 2008 Out of all these samples, acephate was detected in 1.11% samples in year 2006, while 5.65% in year 2008 On the other hand, ... Human and animal urine Multiresidue including (2000) spectrometry acephate and methamidophos (Aguera et al., 2002 Tandem mass Vegetables and fruits Multiresidue including ¨ spectrometry acephate and ... using 5% acetone in hexane as extracting solvent and 1-chloro-4-fluorobenzene as an internal standard in fruits and vegetables The limit of detection by the method was found in between 0.005 and...
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Query and mining in biological databases
... sequences and conserved protein 3D structures In all, we have addressed some important and valuable issues about sequential biological data including DNA sequences and protein chains and proposed ... from traditional researches involving DNA sequence search and protein structure pattern mining The biological data is complex, and both the quantity and the size are growing exponentially Data evolves ... Main interface of FCDR System 157 7.3 Interface of building ed − tree on proteins 158 7.4 Interface of mining protein 3D patterns 159 7.5 Interface...
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Arsenic speciation in environmental and biological samples extraction and stability studies
... were determined in four powder candidate reference materials (prepared within the framework of a European project) of environmental and biological origin: rice, chicken, fish and soil samples Sample ... M 1.0 ml min−1 1.5 ml min−1 0.8 ml min−1 60 ml min−1 200 ml min−1 100 ml min−1 Arsenic 197.26 nm 27.5 mA 35 mA Forward 1350 W Reflected: 2.2 W Coolant: 14 l min−1 Nebulizer: 1.0 l min−1 Auxiliary: ... HNO3 :HCl mixture and 0.5 ml HF were added The mixture was maintained at 150 ◦ C for h After cooling, the digested samples were heated until total elimination of the nitric acid, and finally diluted...
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CHEMICAL AND BIOLOGICAL CHARACTERIZATION OF TRACE AMOUNT OF SEX HORMONE RECEPTOR ACTIVE COMPOUNDS IN PROSTATE CANCER RELATED BIOLOGICAL SAMPLES
... and T6 (p-value < 0.05) and T5 and T6 (p-value < 0.05), where under T6, which contains 50 µM Dimethoxycurcumin can induce a significant increase in intracellular 3β-Diol, a selective ERβ ligand ... compensate for the decrease in circulating T levels In this scenario, an increase in 5α-reductase enzyme activity is observed in the PCa cells, resulting in an increase in the rate of conversion ... ARCCR cells Outlaw AR Androgen independent Ligand independent AR dependent Bypass AR Androgen independent AR independent Lurker Cells Androgen Independent AR independent Promiscuous...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 6
... ultrapure water, drinking water, rain water, river water and seawater under various pH and irradiation sources (sunlight, darkness, indoor incandescent lighting and artificial UV lighting) Hydrolysis ... Light intensity could prompt degradation significantly under mild alkaline conditions, while its influence was minor at higher pH (pH > 9) Furthermore, half-lives and degradation rates were obtained ... 2-isopropoxyphenol occurred in all tested biological samples under the applied MAE conditions and led to low recoveries The stability of propoxur under microwave irradiation was maintained as neither evaporation...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 5
... power setting for the microwave heating This setting was proportional to the number of samples undergoing extraction during one run Furthermore, according to previous experience with MAE and intuition, ... Propoxur and Its TPs in Tested Extracts with Time In order to determine the stability of biota extracts prior to measurement, freeze-dried biological samples considered in this work containing propoxur, ... with a tuning solution (a mixture of caffeine, MRFA, and ultromark 1621) in both positive and negative ionization modes In order to ensure optimal tuning conditions, the propoxur standard was...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 4
... 3) methanol 88 An interesting result observed from Fig 4-6 is that in the same solvent, the recovery increases in going from PAHs to PCBs, and then to triazines (i.e, increasing polarity of analyte) ... temperature 300°C; initial oven temperature 80°C for min, increased to 200°C at a rate of 25°C/min, then maintained at 200°C for min; a second ramp 230°C at rate of 5°C/min, increased to 280°C ... PCBs and triazines For example, the recoveries of triazines progressively improved with an increasing degree of moisture in the tested soil This can be explained by the high solubility of triazines...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 3
... the K and t½ in each natural water sample K increases and t½ decreases accordingly when the light intensity increases in the order of darkness, indoor lighting and sunlight This indicates that ... Irradiation darkness indoor lighting a sunlight darkness indoor lighting a sunlight darkness indoor lighting a sunlight darkness indoor lighting a sunlight darkness indoor lighting a sunlight k (h ... degradation of propoxur in water samples We also noticed that degradation was much faster in both seawater and river water than in drinking and rain water This is because dissolved salts and organic matter...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 2
... fresh running water and then rinsed with deionized water The fish samples were grinded in a mortar and pestle with liquid nitrogen until a homogenous fine powder was obtained In order to meet the ... being submerged in liquid nitrogen, and tissues were then crushed and lyophilized Spiked tortoise samples were prepared in a similar manner as the fish The remainders of the fish and tortoise samples ... The instrument was initially tuned based on a mixture of caffeine, L-methionyl-arginyl-phenylananyl-alanine acetate·H2O and a mixture of perfluoroalkoxycyclotriphosphazenes in both positive and...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 1
... rapid and accurate molecular-mass determination for large proteins by means of ESI At present, APCI is commercially available and a growing interest in applications involving biological and environmental ... 1-3 Comparison of the boiling points of solvents in open and closed systems [64] Solvent Dichloromethane Boiling point (°C) in open system 39.8* Boiling point (°C) in closed system (175psi) 140 ... occurs in the negative mode [M+H] + or [M-H] are usually formed to give molecular weight information and structural information is obtained through fragmentation induced in the source by increasing...
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Improvement of Water Quality by Removal of Suspended Solids and High-speed Biological Filtration in Closed Water Body
... experiment was carried out in the field, some disturbances such as typhoon, heavy rain and windy day were met These disturbances had influence on temperature, SS, turbidity and the inflow of water, but ... metal-contaminated soils and groundwater: an evaluation, Engineering Geology, 60(1-4), 193-207 [5] Robert H Kadlec and Robert L Knight Treatment Wetlands CRC Lewis Publishers 1996 [6] APHA, AWWA and ... involved SS in the experimental water area Thus both the decrease in SS concentration and removal of SS are very well similar Organic content in attached bio-film was about 20 w%, and that in the...
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Tài liệu Báo cáo khoa học: Computational processing and error reduction strategies for standardized quantitative data in biological networks doc
... use the erythropoietin receptor (EpoR)-induced activation of ERK1 in the hematopoietic suspension cell line, BaF3-hemaglutinin-tagged (HA)-EpoR, and the interleukin-6 (IL-6)-induced activation ... cDNA, was introduced into BaF3 cells by retroviral transduction Cell lines stably expressing HA-EpoR (BaF3-HA-EpoR) were selected and maintained in RPMI 1640 (Invitrogen, Carlsbad, CA, USA) in the ... differences in cell number, gel loading and antibody detection, while blotting errors are caused by inhomogeneities of the gel or the blot Eliminating correlated errors by randomized sample loading To...
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Tài liệu Báo cáo khoa học: Moult cycle-related changes in biological activity of moult-inhibiting hormone (MIH) and crustacean hyperglycaemic hormone (CHH) in the crab, Carcinus maenas From target to transcript ppt
... Materials and methods Animals and peptides Carcinus maenas were collected using baited traps in the Menai Strait, UK, and maintained in a recirculating seawater system under ambient conditions MIH and ... of MIH and CHH in the sinus gland during the moult cycle As individual SG from single crabs always contained almost identical profiles and quantities of peptides (preliminary experiments using pairs ... crabs in which CHH and MIH levels were individually measured and analyzed by ANOVA showed highly significant pairing in peptide contents between sinus glands from individuals, thus demonstrating...
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WATER REUSE IN PAPER MILLS MEASUREMENTS AND CONTROL PROBLEMS IN BIOLOGICAL TREATMENT doc
... shared my interest for training and so during breaks there was always some stimulating discussion about strength training, pulse intervals, nutrition or something else in this area Michael and I ... final product Recycled fibres are therefore usually used for products with lower quality demands such as newspapers, liner and fluting In developing countries, such as China and India, the main ... included in small amounts in other printing products Chemical pulping In chemical pulping, the cellulose fibres are uncovered by degradation and removal of the lignin in the wood This is done in large...
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Báo cáo khoa học: Thiamin diphosphate in biological chemistry: analogues of thiamin diphosphate in studies of enzymes and riboswitches pot
... enzyme and coenzyme in stabilizing reaction intermediates has become clearer, and the features of the coenzyme essential for binding and catalysis have been elucidated New and intriguing features ... acetohydroxyacid synthase have been obtained and show that they not bind in the ThDP-binding site but instead bind in the mouth of the active site, blocking access to the ThDP [52] Clomazone is ... 3-deazaThDP and oxalyl CoA was solved and this revealed both the CoA binding site and the ordering of the C-terminus of the protein to form a lid over the CoA chain (PDB entry 2JI6) [34] In the case...
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Cambridge Studies in Biological and Evolutionary Anthropology pot
... Paleodemography: looking back and thinking ahead xi xiii Reference samples: the first step in linking biology and age in the human skeleton 29 Aging through ... relating to age determination and representativeness in skeletal samples remain a primary focus for refining answers to this problem, the current approach to understanding demographic structure in ... populations Looking back and thinking ahead 21 Princeton, NJ: Princeton University Press Coppa A, Cucina A, Chiarelli B, Luna Calderon F, and Mancinelli D (1995) Dental anthropology and paleodemography...
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Báo cáo khoa học: "Density of CD4(+) and CD8(+) T lymphocytes in biopsy samples can be a predictor of pathological response to chemoradiotherapy (CRT) for rectal cancer" ppt
... peroxidase-conjugated streptavidin for 30 min, and developed by immersion in 0.01% H O and 0.05% diaminobenzidine tetrahydrochloride for Light counterstaining with Mayer’s hematoxylin was performed The ... number and distribution of T cells in biopsy samples before CRT were evaluated with immunostainig withm Abs against CD4 and CD8 As shown in Figure 1, both CD4 and CD8 were clearly stained in the ... Japan, and the Ministry of Health, Labor and Welfare of Japan Authors’ contributions JK participated in the study design and data retrieval and analysis KY, KK, ES participated in immunostaining and...
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Báo cáo y học: " NeMeSys: a biological resource for narrowing the gap between sequence and function in the human pathogen Neisseria meningitid" pot
... meningitidis and N lactamica strains (encoding proteins displaying at least 50% amino acid identity over at least 80% of their length and are, in addition, in synteny and/ or BBHs) and absent in ... transformation of an aliquot of the in vitro transposition reaction in DH5α and selection on plates containing kanamycin (cassette in the mini-transposon) and spectinomycin (cassette in the target vector), ... of the remaining CDSs in Z2491 using the criteria set for strain 8013 and transferred this annotation to the remaining genomes using the same cutoff This was then done iteratively in the order...
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