bioremediation and mitigation of organic contaminants in the era of climate changes
Tài liệu CONSUMER PREFERENCE AND CONSUMPTION OF ORGANIC PRODUCTS IN THE EASTERN CAPE PROVINCE OF SOUTH AFRICA docx
... are marked increases in the future demand of all organic products This augurs well for the growth of the organic industry in the Eastern Cape and in South Africa in general The findings of this ... maintain its identity in the face of others, and therefore creates a feeling of "belonging" (Buruiana 2003) 17 10 Factors affecting the consumer awareness of organic products The results of the ... further analysis of the magnitude of the demand differences between products consumed today and the potential demand for organic products in the Transkei and the Ciskei is presented in Figure and...
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Báo cáo toán học: " Influence of different flow conditions on the occurrence and behavior of potentially hazardous organic xenobiotics in the influent and effluent of a municipal sewage treatment plant in Germany: an effect-directed approach" pot
... the organic xenobiotics of medium polarity that might mask the toxicity of the other fractions In general, the high decrease in the overall toxicity of the organic pollutants in wastewater by the ... particular in the toxic effects of the moderately polar fraction were observed in the influent of the investigated STP A significant impact of wastewater flow on the toxicity of the remaining fractions ... wastewater The decrease in the toxicity of fraction by the increasing wastewater flow pointed to an evident dilution of the moderately polar, toxic xenobiotics in consequence of additional runoff in the...
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báo cáo hóa học:" Influence of different flow conditions on the occurrence and behavior of potentially hazardous organic xenobiotics in the influent and effluent of a municipal sewage " pdf
... the organic xenobiotics of medium polarity that might mask the toxicity of the other fractions In general, the high decrease in the overall toxicity of the organic pollutants in wastewater by the ... particular in the toxic effects of the moderately polar fraction were observed in the influent of the investigated STP A significant impact of wastewater flow on the toxicity of the remaining fractions ... wastewater The decrease in the toxicity of fraction by the increasing wastewater flow pointed to an evident dilution of the moderately polar, toxic xenobiotics in consequence of additional runoff in the...
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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 ... irradiation was maintained as neither evaporation losses nor propoxur decomposition was observed during the process The extracts of goldfish, tortoises and sea lettuce were stable and a 3-days delay ... irrespective of the type of water matrix Light intensity could prompt degradation significantly under mild alkaline conditions, while its influence was minor at higher pH (pH > 9) Furthermore, half-lives...
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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
... freedom for the assignment of the variables under consideration The assignment of the main variables (A, B, C and D), two-variable interaction, and the level setting values of the main variables ... a minor effect in extraction from goldfish Comparing the r1 and r2 for factors B and C (see Table 5-2), it is clear that the optimum levels are B2 and C1 On the other hand, because the interaction ... results that the combination of A1 and B2 would result in a maximum response Since effects of duration time and volume of the solvents (factors C and D) are minor, less solvent and time are preferred...
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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
... 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 at a rate of 20°C/min; The final temperature of 280°C was held for 4.1.3 Results and ... 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) The recovery ... by the interaction between the analyte and the matrix The higher the polarity of the analyte, the larger its dipole Thus it is more easily reoriented and finally desorbed from the soil matrix in...
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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
... light intensity affects 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 ... calculated as the negative slope of the regression line where the natural logarithm of the percentage of the compound remaining is plotted against time (h-1) The half-life (t1/2) designates the time ... rates increase in the order of increasing pH (seawater [pH 7.8] or river water [pH 7.6] > drinking water [pH 7.03] > rain water [pH 4.2]) For example, the percentage of degradation in seawater 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 2
... of PAHs, PCBs, triazines, carbamates and other organic contaminants, 100 g of each of the soil sample was immersed in 200 ml 46 each of methanol, acetone, dichloromethane and n-hexane for at ... were obtained by storing the above spiked soil in bottles in a dry, dark location for 60 days It was assumed that the contaminants were uniformly distributed in the sample and that, because the soil ... trace organic contaminants prior to preparation, all of them were washed in fresh running water and then rinsed with deionized water The fish samples were grinded in a mortar and pestle with liquid...
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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
... consideration should be given to the microwave-absorbing properties of the solvent, the interaction of the solvent with the matrix, and the analyte solubility in the solvent Preferably, the solvent ... voltage of 3000±4000 V), and are then dispersed into a very fine spray of charged droplets with the same polarity The solvent then evaporates, shrinking the droplet size and increasing the charge ... principle of MAE The principle of MAE is based on heating the extractants (mostly liquid organic solvents) in contact with the sample with microwave energy [58] Partitioning of the analytes of...
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Báo cáo khoa học: " Medication errors: a prospective cohort study of hand-written and computerised physician order entry in the intensive care unit"
... at the time audits were not within the remit of the local ethics committee Prior to introduction of CPOE, local standards of prescribing existed specifying the tenets of good practice, including ... non-intercepted and intercepted errors were combined) The limitations of this study and the potential for bias discussed previously must be borne in mind when interpreting these results Some of the ... reduction in the probability of treatment being timely and effective or an unintentional significant increase in the risk of harm when compared with generally accepted practice [8] During the monitoring...
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Tài liệu Báo cáo khoa học: Treatment of neutral glycosphingolipid lysosomal storage diseases via inhibition of the ABC drug transporter, MDR1 Cyclosporin A can lower serum and liver globotriaosyl ceramide levels in the Fabry mouse model doc
... also evident in the Fabry mice (Fig 7A) The VT1 binding in the Fabry mouse lung (Fig 7C) was increased in the bronchiolar epithelium Staining of bronchiolar epithelial cells in the lung was significantly ... [9] and the effect of a maintenance dosing of CsA on the recovery of serum Gb3 levels after termination of ERT was determined ERT is an effective means of eliminating serum Gb3, and Gb3 remained ... [10], but in Fabry disease, the primary pathology is in the kidney [1], the major site of Gb3 synthesis in man [11], and in the heart, possibly due to the association of Gb3 synthesis with the microvasculature...
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Tài liệu Báo cáo khoa học: Distribution of class I, III and IV alcohol dehydrogenase mRNAs in the adult rat, mouse and human brain ppt
... can be oxidized in brain homogenates and that catalase is involved in the accumulation of acetaldehyde in the brain [27], explaining its presence despite the absence of ADH1 and the fact that acetaldehyde ... involvement of ADH1 and ADH4 in ethanol oxidation in brain tissue Regarding retinoid metabolism in the adult brain, enzymes other than ADH4 must be active, because in vivo and in vitro data indicate ... cells of the cortex and in the hilus of the dentate gyrus, Purkinje cells and granule cells in the cerebellum Scale bar, 45 lm Fig In situ hybridization showing an ADH3 specific signal in the choroid...
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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
... Levels 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 ... fold (x) increases in cGMP levels, as there are considerable variations in initial levels of cGMP between individuals, but in unstimulated YO, levels of cGMP were similar in each YO of individual ... of MIH and CHH on the target tissue, receptor binding, a second messenger pathway, MIH and CHH peptide and transcript levels in the XO with reference to the moult stage of the crustacean During...
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Tài liệu Báo cáo Y học: The b-1,4-endogalactanase A gene from Aspergillus niger is specifically induced on arabinose and galacturonic acid and plays an important role in the degradation of pectic hairy regions pdf
... stranded sequence was determined for a region of this construct containing galA and some of the flanking regions, resulting in the genomic sequence of A niger galA The presence of one putative intron ... control of the xylanolytic activator protein [32,41] The increase in expression levels of galA in the CREA mutant, indicates that at least one of the detected putative CREA binding sites in the promoter ... proteins The three arabinogalactans were incubated with GALA for 15 min, 30 min, h and 20 h to determine the substrate specificity of the enzyme The degradation of the polymer Ó FEBS 2002 and subsequent...
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Tài liệu Báo cáo Y học: Soluble silk-like organic matrix in the nacreous layer of the bivalve Pinctada maxima A new insight in the biomineralization field pptx
... hydroxylysine and phosphoserine were not detected in WSM, WIM, EDTA-SM and EDTA-IM The comparison of the amino acid composition of the main peak obtained from AE-HPLC of WSM and EDTASM is given in Table These ... extract and study organic compounds of the biomineral nacre, by bypassing the demineralization step We think that it may present a new perception of how the different fractions of the organic ... matrix are organized in the biomineral structure First, the aqueous method affected neither the yield of organic material extraction in general nor the extraction of proteins Also, the WSM has a low...
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Báo cáo khoa học: Respective roles of the catalytic domains and C-terminal tail peptides in the oligomerization and secretory trafficking of human acetylcholinesterase and butyrylcholinesterase potx
... However, in the case of Bb, the cellular activity was decreased and secretion was increased, suggesting that the presence of this cysteine retains the enzyme intracellularly In case of Aa, the cellular ... higher mass of BChE subunits [37] This indicates a predominant in uence of the catalytic domain on oligomerization Mutation of the cysteine located at )4 from the C-terminus to a serine in the a or ... However, the catalytic domains are also involved in quaternary interactions that certainly participate in the formation and stability of these oligomers In particular, the tetramers are formed of two...
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Báo cáo khoa học: "COMMON TOPICS AND COHERENT SITUATIONS: INTERPRETING ELLIPSIS IN THE CONTEXT OF DISCOURSE INFERENCE" ppt
... constituent in the syntax, and (2) whether the form is anaphoric in the semantics In subsequent sections, we show how the distinct mechanisms for recovering these types of missing information interact ... constraints In order to meet these constraints, the identification of p0 and Pl may require arbitrary levels of generalization from the relations explicitly stated in the utterances Examples of these ... 203-212, Utrecht, the Netherlands, April Andrew Kehler 1993b The effect of establishing coherence in ellipsis and anaphora resolution In Pro- ceedings of the 31st Conference of the Association...
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Environmental Adaptations and Stress Tolerance of Plants in the Era of Climate Change pptx
... serine, leucine, and valine, the nonprotein amino acids citrulline and ornithine (Orn)), together with the imino acid Pro, and the amides such as glutamine and asparagine are accumulated in higher ... many mRNAs is suppressed and the expression of a certain set of genes including the luminal binding protein gene BiP is induced The underlying mechanisms of UPR in yeasts and mammals have been well ... membranes and proteins: On the one hand, changes of the ionic milieu lead to alterations of the membrane potential and thus to a destruction of biomembranes (Schulze et al 2002) On the other hand, the...
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Volatile Organic Compounds in the Nation’s Ground Water and Drinking-Water Supply Wells pdf
... extractant, and as an intermediate product in organic synthesis Also, chloroform and other THMs are by-products of the chlorination of drinking waters and wastewaters, and the disinfection of domestic and ... products, and plastics, as well as in the synthesis of other organic compounds VOCs also are used in the dry cleaning of clothing, in refrigeration units, and in the degreasing of equipment and home ... confining unit) This unit restricts the downward movement of water and contaminants to the underlying confined part of the Edwards aquifer, resulting in a smaller VOC occurrence in the confined...
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Remediation of Organic Chemicals in the Vadose Zone docx
... dry the formation and decrease the thermal conductivity, steepening the temperature gradient and elevating the temperature in the vicinity of the heater Thus, drying near the heater causes temperatures ... transfer between the rod and the soil, the thermal conductivity and heat capacity of the soil, and the spacing of neighboring heaters The heating rate increases with thermal conductivity and decreases ... CHEMICALS IN THE VADOSE ZONE 987 The positions of the well screens and heaters are determined by the distribution and type of contaminant The spacing of the wells is determined by the temperature...
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Tìm thêm: xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản 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 điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam 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 mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha thông tin liên lạc và các dịch vụ chỉ tiêu chất lượng 9 tr 25