µg kg day of polychlorinated biphenyls for adults toddlers and infants
Effect of Process Parameters on the Degradation of Polychlorinated Biphenyls in Water Matrix using UV/H2O2
Ngày tải lên :
05/09/2013, 09:08
... efficiency of 68% and 86% after 30 and 60 minutes, respectively, were obtained at a PCB concentration of 40 ppm A plausible explanation for this would be the role of the - 14 - Journal of Water and ... the rate of pollutant degradation as well as the kind and concentration of intermediates formed during reaction Alnaizy and Akgerman (2000) reported that as the initial concentration of phenol ... concentration of about 2800 ml (of the 30%H2O2 solution) per liter and initial PCB concentration of about 40 ppm The initial pH of the solution also has a significant effect on the rate of degradation of...
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A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems
Ngày tải lên :
20/11/2012, 11:28
... studies the channel estimation for OFDM systems and system capacity for MIMO-OFDM systems, this chapter briefly introduces the background of OFDM systems and MIMO systems OFDM is an effective technology ... analysis of channel estimation for the first M1 OFDM symbols 100 4.4.2 MSE analysis of channel estimation for the last M2 OFDM symbols 103 4.4.3 MSE analysis of channel estimation for one OFDM block ... personality and diligence, which I will treasure my whole life I also gratefully acknowledge Prof V.O.K Li, Prof G.L Li, Prof Y.C Wu, Prof S.C Chan, Prof T.S Ng and Prof Agnes S.L Lam for their...
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A cross cultural analysis of english textbook for grade 10 and suggestion of supplementary activities for students’ cross cultural awareness
Ngày tải lên :
07/09/2013, 12:58
... for a much richer understanding of culture than heretofore envisaged by the majority of language teachers 2.2 Common approaches to the teaching of culture In the history of culture teaching different ... textbook among 23 the set of English textbooks for senior high school in Vietnam and the analysis of its cultural content may set an initial step for the analysis of the whole set of high school English ... of frequency and percentage of types of references to Vietnamese and foreign cultures according to Checklist One Types of reference Reference to Vietnamese culture Reference to foreign culture...
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Tài liệu FITNESS OF THE COSMOS FOR LIFE Biochemistry and Fine-Tuning pdf
Ngày tải lên :
14/02/2014, 09:20
... controllers of the activity of catalysts, signals for generating the catalysts and other molecules, sources of energy, and components of the physical structure of the cell Today, we understand many ... understand many aspects of the behavior of the cell and many fragments of the network, but not how it all fits together We particularly not understand the stability of life and of the networks that ... of life, especially by multitudes of different types of living cells; we thus have many examples of different forms of life We ourselves are communities of cells with the added complexities of...
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Tài liệu Báo cáo khoa học: "DiMLex: A lexicon of discourse markers for text generation and understanding" docx
Ngày tải lên :
20/02/2014, 18:20
... techniques For tasks of this kind, DiMLex can supply the set of cue words to be looked for and support the initial disambiguation of cues in the text Depending on the depth of the syntactic and semantic ... parsing of natural language text." In: Proceedings of the 35th Annual Meeting of the ACL and 8th Conference of the European Chapter of the ACL, Madrid, July 1997 J Martin English Text - System and ... positions of others are fixed The linear order of the conjuncts is fixed for some markers and flexible for others; this is independent of the aforementioned two features Some markers show a specific...
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Tài liệu Báo cáo Y học: Temperature dependence of thermodynamic properties for DNA/DNA and RNA/DNA duplex formation pdf
Ngày tải lên :
22/02/2014, 07:20
... mds, and mss are the intercepts and slopes of the lower and upper baselines of the melting curves, respectively; T is the temperature of interest in Kelvin, a is the molar fraction of strands ... single and duplex strands were performed on Hitachi U-3200 and U-3210 spectrophoto- meters equipped with a Hitachi SPR-7 and SPR-10 thermoprogrammer and temperature probes All melting curves of the ... in terms of coupled processes of formation and association of single-stranded helices Biochemistry 38, 84098422 28 Rouzina, I & Bloomeld, V.A (1999) Heat capacity eects on the melting of DNA General...
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Báo cáo khoa học: Crystal structure of the parasite inhibitor chagasin in complex with papain allows identification of structural requirements for broad reactivity and specificity determinants for target proteases pptx
Ngày tải lên :
16/03/2014, 04:20
... view of the interactions of papain with loop L6 of chagasin and loop L2 of cystatin B (C) Zoom-in view of the interactions of papain with loop L4 of chagasin and the N-terminal segment of cystatin ... difference of 9° between these complexes may be correlated with the variation of the rate of binding and affinity for chagasin of these enzymes On the other hand, in the two crystal forms of the chagasin–cathepsin ... carbonyl group of the main chain of M90 and the nitrogen atom of A35 A similar stabilizing contact between cystatin B loops L2 and L1 is formed by the mainchain carbonyl of Q101 and the peptide...
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Báo cáo khoa học: Characterization of recombinant forms of the yeast Gas1 protein and identification of residues essential for glucanosyltransferase activity and folding pot
Ngày tải lên :
16/03/2014, 18:20
... features of proteins of the GH72 family and demonstrate that the most N-terminal highly conserved cysteine is crucial for the folding and maturation of Gas1p Materials and methods Strains and growth ... sequence of GAS1 Twenty-five cycles of a 45 s melting step at 94 °C, a annealing step at 50 °C for Gas1E161Q-H and 53 °C for Gas1E262Q-H, and a extension step at 72 °C were performed and the Taq ... using two sets of primers For sGas1E161Q-H, a pairing of the forward primer XHup and reverse primer RMGLN161 (5¢-TGTTAGTAACTTGATTACCGGCGAAG-3¢), and a pairing of the forward primer FMGLN161 (5¢-CTT...
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Báo cáo " Research on organizing spatial production of economic models for agro - fisheries and processing industry in Diem Dien Town, Thai Thuy District, Thai Binh " doc
Ngày tải lên :
22/03/2014, 12:20
... stages, new river routes are built for the service of watering, draining away and traffic, and so forth Besides, Sing and Gu rivers are important sources of water for agricultural development The ... - 10%, and on handicraft - 4.4% In 2005, the rate of labor of town made up 49.6% of the total population, but the number of labor having professional technical education is only 34.1%; of which ... accounted for 6.2% of GDP in 2004 The marine economic consists of the branches of catching and exploiting organism sources and seafood processing 3.2.1 The catching and exploiting sources of the...
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Support to the identification of potential risks for the environment and human health arising from hydrocarbons operations involving hydraulic fracturing in Europe doc
Ngày tải lên :
23/03/2014, 00:20
... required for recovery of a given volume of gas than for recovery of the same volume of gas from conventional reservoirs Of the order of 50 shale gas wells might be needed to recover the same volume of ... greater intensity of of formation Monitoring and control of hydraulic activity fracturing process Number, size, timing and concentration of delivery slugs of fracturing fluid and proppant Hydraulic ... (access roads and pipelines) also results in land take and habitat fragmentation For example, Sutherland et al (2011 PR) highlight that over 30% of the 8,900 km2 forests of the State of Pennsylvania...
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Báo cáo khoa học: Identification of structural determinants for inhibition strength and specificity of wheat xylanase inhibitors TAXI-IA and TAXI-IIA doc
Ngày tải lên :
23/03/2014, 05:22
... has identified large families of isoforms of TAXI-type inhibitors in wheat grain [17] The amino acid sequences of TAXI-I and TAXI-II isoforms share a high degree of identity (UniProt accession ... acids in the active site and in the thumb region of BSX and of TAXI-type inhibitors that are crucial for xylanase-inhibitor interaction [1–4] Structural information on TAXI isoforms other than TAXI-IA ... (B,D) Cascade of conformational changes upon association of TAXI-IA (B) and rTAXI-IIA (D) with BSX in the aglycon-binding sites of the xylanase, determined by Tyr174 (subsites +1 and +2) and Tyr88...
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Báo cáo khoa học: "Abstracts of Papers for the 1963 Annual Meeting of the Association for Machine Translation and Computational Linguistics" pptx
Ngày tải lên :
23/03/2014, 13:20
... parts of speech of * This work was supported in part by the National Science Foundation, and in part by the U.S Army Signal Corps, the Air Force Office of Scientific Research, and the Office of ... part by the U.S Army Signal Corps, the Air Force Office of Scientific Research, and the Office of Naval Research, and in part by the National Bureau of Standards 1963 ANNUAL MEETING ... exocentrism, and homography In the present paper, a format for the description of Russian items is offered and a program for testing the connectability of pairs of Russian items is sketched This system...
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Báo cáo khoa học: Limited proteolysis of Escherichia coli cytidine 5¢-triphosphate synthase. Identification of residues required for CTP formation and GTP-dependent activation of glutamine hydrolysis potx
Ngày tải lên :
23/03/2014, 17:22
... Fig SDS/PAGE analysis of trypsin-catalysed cleavage of recombinant wild-type CTPS in the absence and presence of ligands For each gel: lane contains molecular mass standards and lanes 26 contain ... masses of % 25 and % 28 kDa In the presence of ATP and UTP (10 mM each) (B), and CTP (2.5 mM) (C), only production of the 10- and 53-kDa cleavage fragments is observed In the presence of GTP ... wild-type CTPS because of slow cleavage at Lys432 In the presence of ATP and UTP, cleavage of R429A at Lys187 was suppressed and only the 10- and 53 kDa fragments were formed because of slow cleavage...
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Báo cáo khoa học: Analysis of the region for receptor binding and triggering of oligomerization on Bacillus thuringiensis Cry1Aa toxin potx
Ngày tải lên :
29/03/2014, 22:21
... BBMVs Aliquots of 20 lL of 100 nM of wild-type Cry1Aa were mixed with lg of BBMVs and incubated for 15 or h at 37 °C Samples were then mixed with SDS-PAGE sample buffer and incubated for at various ... (365)LYRRIILG(372), R311, N376, G442 and Y445 (Figs 2, and 5), and therefore loops 1, and (especially loop 2) are good candidate regions for the introduction of mutations to obtain mutant toxins ... cadherin-like receptor BtR175 of B mori Indeed, improvement of these loops by mutation has been performed for several Cry toxins For example, loop mutants of Cry1Ab and loop mutants of Cry3Aa have higher...
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Analysis and practical implementation of a model for combined growth and metabolite production of lactic acid bacteria
Ngày tải lên :
05/05/2014, 08:44
... concentration LaHtot and pH consists out of two major steps, namely, (i) determination of medium related parameters (i.e., the parameters of Eqs (14) and (15)), and (ii) determination of growth and production ... the parameters a, b and c of expression (14) and a1, b1, c1 and pH0 of expression (15) are identified Simulations of relations (14) and (15) with the estimated parameter values for the case study ... projects OT/99/24 and COF/98/008, the Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT), the Fund for Scientific Research-Flanders (FWO) as part of project G.0267.99,...
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báo cáo sinh học:" A systematic review of task- shifting for HIV treatment and care in Africa" potx
Ngày tải lên :
18/06/2014, 17:20
... [54,55] and Rwanda [56-58] have also reported highly satisfactory outcomes in terms of mortality and retention-in-care for both adults and children Home-based care, treatment support, and other ... negotiation of new power dynamics between patients and care givers and training and supervision where appropriate Page of Assessment of methodological quality of studies We undertook an assessment of ... (21.5 days for nurses/medical assistants vs 35 days for clinical officers); no difference in outcomes and retention rates Sanjana et al, 2009 [73] Zambia Cross-sectional survey - Assessment of...
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d. to stay --> b 114. A artist went to a beautiful part of the country for a holiday, and stayed pdf
Ngày tải lên :
18/06/2014, 17:20
... way of teaching moral lessons to young people a goodest b teaching c moral d to > a 189 I talk about the Tower of London, and then of the lives of people in England today a the b and c of d ... presented reward for the return of her lost bracelet a presented b for c of d lost > a 155 We are interested of the conservation of forests a interested b of c conservation d of > b 156 I think there ... understand the lesson, his father often explains it for him a understand b his c often d for > d 145 Most of the building in this town are rather unattractive, but this church is an exception a of...
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Báo cáo sinh học: " In vitro permissivity of bovine cells for wild-type and vaccinal myxoma virus strain" pot
Ngày tải lên :
18/06/2014, 18:20
... Centre for Virus Diseases of Animals, Island Riems), BT cells (ATCC CRL-1390) and MDBK cells (ATCC CCL-22) Each cell line was infected at a multiplicity of infection (m.o.i.) of and cultured for ... at a m.o.i of 1, washed, cultured in DMEM, % FCS for days and frozen (P1) In subsequent infections, 1/5 of the material from the previous frozen culture was used for infection (P2 and P3) Titers ... to a mean of at least two independent experiments Error bars correspond to the standard error of the mean B Rabbit and bovine cells were infected with the T1-TK::LacZ (m.o.i of 0.1 and 1) Twenty-four...
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Báo cáo sinh học: " Open Access Cloning of the canine RNA polymerase I promoter and establishment of reverse genetics for influenza A and B in MDCK cells" docx
Ngày tải lên :
18/06/2014, 18:20
... author of this manuscript and is responsible for the overall design of the experiments ZW assisted in experimental design and was responsible for the performance of all experiments except for the ... segments and Chin-Fen Yang for providing primers for sequencing We thank Xing Cheng and Kathy Wang for helpful discussions, Qing Yan and Indira Kottayil for technical assistance and Yang He for supplying ... 4:102 Background The type A and B influenza viruses have genomes consisting of eight negative-sense single-stranded viral RNAs (vRNAs), each of which contains a coding region and terminal 5' and 3'...
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báo cáo hóa học: " Quality of life of Australian chronically-ill adults: patient and practice characteristics matter" doc
Ngày tải lên :
18/06/2014, 18:20
... mean and standard deviation of PCS-12 and MCS-12 scores by characteristics of practices and patients (number of patients = 7606; number of practices = 96) Variable (definition) Characteristics of ... or disability (11% of males and 7% of females) and looking after family or home (1% of males and 19% of females) Probably, this might explain some of the interaction Policy and practice implications ... mean of 50 and standard deviation of 10 in the U.S general population) can be compared and interpreted across countries [19] For example, the average unadjusted PCS-12 (42.7) and MCS-12 (50.2) for...
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