... intermediates of metabolic pathways and, thus, their concentrations are likely to change when the metabolism of a cell or an organism reaches a different metabolic state [2] Therefore, the levels of VOCs ... number of chemical classes, showing an improved repeatability and reducing siloxane impurities Conclusion: In this work we compared the performance of sample preparation methods for the SPME-GC-MS ... urine and frozen urine when identifying and quantifying metabolites in 4 ml samples Freeze-drying and addition of acid produced a significantly higher number of VOCs identified than any other method,
Ngày tải lên: 29/05/2020, 13:33
... photoconductivity of the sample can be increased up to a certain level The Wcm−2 and 10−2 Wcm−2 by the use of filters Between the incandescent lamp and the sample, there exists a Si-filter, which transmits the ... to excite the electronic states of the PV samples. In that case, the photocathode can be illuminated by an incandescent lamp with 250 W in front of the cathode uniformly Therefore the photoconductivity ... result on the quality of PV materials by measuring the spatial resistivity and optical feature of the sample Even the time-depended local changes of the DLE can be observed via this IS and the resistivity
Ngày tải lên: 23/10/2022, 09:18
‘Ethnographic’ Thematic Phenomenography – a methodological adaptation for the study of information literacy in an ontologically complex workplace
... librarians and information scientists, but to lawyers, medical and business professionals and the many others who sense and understand information need, and plan a search, locate and apply new information ... Dimensions of Variation, traced through several transcripts, and groups them under Themes of Expanding Awareness These Themes are the several meanings of experience or processes of experience (the two ... descriptions of individuals or types of individuals; anyone can take on any of the personas depending on the context of information use Those in senior positions can often find themselves using information
Ngày tải lên: 04/11/2022, 07:44
Luận án tiến sĩ Kỹ thuật môi trường: Assessement of the Method for the Detection of Hop Stunt Virus and Yellow Speckle Virus Related Grapevine
... supports one of the basic tenets of the quasis-pecies theory, that mixtures of variants can complement each other, and hence the whole population is in essence a single entity analogous to an individual ... constraints of time and space, while PAGE is restricted by the number of samples for -17- analysis Quantitative, or real-time, PCR (qPCR) is standard PCR with the advantage of detecting the amount of ... used for the amplification They can choose between using pre-set polymerase buffers or to specify the ionic content of the buffer and the algorithms they want using the custom-buffer mode The
Ngày tải lên: 09/09/2024, 04:21
Báo cáo toán học: "An Asymptotic Expansion for the Number of Permutations with a Certain Number of Inversions" docx
... complete asymptotic expansion of the integral. Among the consequences, we have a complete asymptotic expansion for b(n, k)/n!fora range of k including the maximum of the b(n, k)/n!. AMS Subject ... the asymptotic expansion of B(n)/n!withO(n −9/2 ln 19 n). The following extension of Theorem 1 (the case m = 3) giving a complete asymptotic expansion of I(n, x) can be immediately read out of ... An Asymptotic Expansion for the Number of Permutations with a Certain Number of Inversions Lane Clark Department of Mathematics Southern Illinois University Carbondale
Ngày tải lên: 07/08/2014, 06:20
Báo cáo y học: "A standardized scoring method for the copy of cube test, developed to be suitable for use in psychiatric populations" pdf
... revisions of the Figure 2 Examples of how performance on the Standardized Copy of the Cube Test (SCCT) changes after 2 months of antipsychotic treatment. Trang 10manuscript and approved the final ... reliability and reproducibility of a method and its results, because it is an index of correlation and not an index of agreement [19-21] The calculation of means and standard deviations for each ... date no standardized method has been developed The aims of the current study were to develop a novel and detailed standardized method of administra-tion and scoring of the copy of the Necker
Ngày tải lên: 09/08/2014, 01:21
Báo cáo y học: "Improving benchmarking by using an explicit framework for the development of composite indicators: an example using pediatric quality of care" docx
... Sookanan S: Does pay-for-performance improve the quality of health care? Ann Intern Med 2006, 145:265-272. 12 Profit J, Zupancic JA, Gould JB, Petersen LA: Implementing pay-for-performance in the ... LP, and MK contributed to writing and revision of the manuscript JP is guarantor of the paper All authors read and approved the final manuscript. Competing interests The authors declare that they ... performance can reduce the information deficit between purchasers and providers of healthcare, provid-ing incentives for purchasers and consumers of services to use the best providers, and for
Ngày tải lên: 11/08/2014, 05:21
báo cáo khoa học: " Improving benchmarking by using an explicit framework for the development of composite indicators: an example using pediatric quality of care" potx
... Sookanan S: Does pay-for-performance improve the quality of health care? Ann Intern Med 2006, 145:265-272. 12 Profit J, Zupancic JA, Gould JB, Petersen LA: Implementing pay-for-performance in the ... LP, and MK contributed to writing and revision of the manuscript JP is guarantor of the paper All authors read and approved the final manuscript. Competing interests The authors declare that they ... performance can reduce the information deficit between purchasers and providers of healthcare, provid-ing incentives for purchasers and consumers of services to use the best providers, and for
Ngày tải lên: 11/08/2014, 16:20
Báo cáo y học: " The utilization of humanized mouse models for the study of human retroviral infections" docx
... Comparison of animal models for the study of retroviral infection The identification of HIV-1 as the causative agent of AIDS was followed only a year later by the recruitment of chim-panzees for the ... Additionally, the presence of the fetal thy/ liv organ allows for innate maturation of human CD4+ and CD8+ T cells in the context of the animal's own immune system In general, the proliferation of human ... due to the confinement of most of the engrafted human cells to the developed organoid [78] The Thy/Liv model of HIV-1 infection still provides an appropriate platform for the evaluation of antiretroviral
Ngày tải lên: 12/08/2014, 23:22
Báo cáo y học: " A method for the generation of standardized qualitative dynamical systems of regulatory networks" doc
... tion. Indeed, the method requires as sole input the information regarding the nature and directionality of the regulatory interactions. We provide an example of the applicability of our method, using ... set of default values for all the parameters. Therefore, the resulting model is not optimized in any sense. However, the advan- tage of using Equation 3 is that the user can later modify the ... Kaufman M: The logical analysis of continuous, non-linear biochemical control networks J Theor Biol 1973, 39:103-129 Mochizuki A: An analytical study of the number of steady... for any
Ngày tải lên: 13/08/2014, 23:20
METHOD FOR THE INVERSION OF RESISTIVITY SOUNDING AND PSEUDOSECTION DATA
... point The depth of the center of the block is set at the equivalent depth of the array (0.5 times the electrode spacing for the Wenner array) Note that the left and the right edges for the blocks ... Figure 7 The number of rectangular blocks is the same as the number of data points The horizontal location of the center of each block is placed at the midpoint of the array used to measure the corresponding ... resistivity of the layers is more subdued The modifications to improve the rate of conver- gence and to stabilize the Zohdy method can be combined Figure 6 also shows the error curve for the inversion of
Ngày tải lên: 06/08/2015, 00:01
Chinas rise in the diamond market an international explanation for the resurgence of conflict diamonds
... http://siteresources.worldbank.org/INTRANETTRADE/Resources/Internal-‐Training/287823-‐ 45 Trang 3560 Trang 3661 62 Trang 39diamonds.69 68 69 Trang 41(KPCS).71 70 71 Trang 4480 Trang 4583 82 83 Trang 4684 Trang 5093 94 Trang 5397 96 97 Trang 5498Trang 5699Trang 58104 Trang 61114 ... 113 114 Trang 62115 116 Trang 63118 Trang 66119 120 Trang 67122 121 122 Trang 68124Trang 70127 Trang 76143Trang 77145 144 145 Trang 83stTrang 88165 Trang 89168 167 168 Trang 90http://www.theafricareport.com/archives2/business/3300883-‐bad-‐business-‐for-‐diamond-‐ ... BIBLIOGRAPHY 112 APPENDICES 122 Trang 116 5 6 Trang 127Trang 1310 9 10 Trang 1411Trang 2123 Trang 2226 24 25 Trang 2843 41 42 Trang 2944 http://siteresources.worldbank.org/INTRANETTRADE/Resources/Internal-‐Training/287823-‐
Ngày tải lên: 03/10/2015, 20:33
Inverse modeling for the study of 2d doping profile of submicron transistor using process and device simulation
... modeling for the study of 2D doping profile of submicron transistor using process and device simulation Chan Yin Hong National University of Singapore 2005 Inverse modeling for the study of 2D doping ... profile for 0.11 micron nmos and the initial guess 58 Fig 4.9 Lateral surface profile for 0.12 micron nmos and the initial guess 59 Fig 4.10 Lateral surface profile for 0.13 micron nmos and the ... doping profile of submicron transistor using process and device simulation Submitted by CHAN YIN HONG (B.Eng.(Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENY OF ELECTRICAL
Ngày tải lên: 08/11/2015, 16:45
QuEChERS A Mini-Multiresidue Method for the Analysis of Pesticide Residues in Low-Fat Products
... Mini-Multiresidue Method for the Analysis of Pesticides Page of 12 QuEChERS A Mini-Multiresidue Method for the Analysis of Pesticide Residues in Low-Fat Products Aim and Scope This manuscript describes a method ... employ the internal standard at the end of the procedure (to an aliquot of the final extract) assuming the volume of the organic phase as being exactly 10 mL It should be furthermore noted that the ... variations If the nesessary degree of comminution cannot be achieved with the means available in the laboratory, the use of larger sample amounts for analysis (scaling up) and/or the use of Ultra-Turrax
Ngày tải lên: 06/10/2016, 09:38
DSpace at VNU: A new CE with contactless conductivity detection method for the determination of complex cationic compositions: Application to the analysis of pen inks
... 18-Crown-6 and HIBA was studied in order to obtain the best separation of the analytes of interest The optimised method was applied to the analysis of 11 water-based pen inks and the determination of their ... to the BGE However, this negatively affects the resolution of Na+ and Ca2+, since they started to co-migrate with the addition of 1% (v/v) ethanol 3.2 Performance assessments The performance of ... 20, 30 and 40 mM) of Lac/β-Ala with mM 18-Crown-6 were used to study the effect of the BGE concentration in the separation of the analytes The increase in the BGE concentration led to the prolongation
Ngày tải lên: 16/12/2017, 08:48
A FUNCTIONAL-ANALYTIC METHOD FOR THE STUDY OF DIFFERENCE EQUATIONS EUGENIA N. PETROPOULOU AND potx
... order to study partial difference equations of three and four variables The aim of this paper is to present the generalization of this functional-analytic method for the study of linear and nonlinear ... sketch of the main ideas used in the proofs of our main results, see the beginning of Section 3.) By use of this method, the linear or nonlinear difference equation under consideration is transformed ... see [11] and the references therein) Also, by assuring the existence of a solution of a difference equation in the space or , we obtain information regarding the asymptotic behavior of the unknown...
Ngày tải lên: 23/06/2014, 00:20
Development of a fluorescence correlation spectroscopy method for the study of biomolecular interactions
... by the law of mass action: ratio of the concentrations of the free receptor [R] and the free ligand [L], to the concentration of the complex [RL] The concentrations of the free components are then ... is the viscosity of the solvent, and r is the radius of the sphere r is related to the mass of a sphere given by the product of the density ρ and volume V M = ρV = ρ πr3 (2.21) 17 Chapter Theory ... excitation of two or more fluorescent probes The development and testing of the method was performed in different stages The first part of the thesis, from chapters to 4, describes the theory and optical...
Ngày tải lên: 14/09/2015, 10:36
Study in the preparation of poly (4 vinylpyridine) based nanoparticles and their application as an effective adsorbent for the recovery of palladium from aqueous solutions
... performance and uptake rate of the P4VP nanoparticles To better understand the effects of particle sizes and concentrations on membrane fouling by the P4VP nanoparticles, the separation performance ... properties and performances of the prepared P4VP nanoparticles will be attempted The separation and recovery of the nanoparticles will be performed with a membrane filtration system and their fouling and ... range To examine the adsorption performance for palladium in acidic solutions with the prepared nanoparticles To improve the property and performance of the prepared P4VP nanoparticles for their...
Ngày tải lên: 10/09/2015, 15:54
An asthma allergen specific animal model for the study of responses to dust mite allergen induced asthma
... differ in the severity of their responses and many patients were responsive to more than one triggering factor The most common form of asthma and the focus of most of the research in the field ... and lamina propria of the airways These DCs are at an immature state Therefore, at steady state, uptake and presentation of antigen by these DCs would result in tolerance rather than induce an ... the structural components of the lung and have shown that, rather than being a passive bystander in the inflammatory process, these components can have a profound influence on the nature of the...
Ngày tải lên: 15/09/2015, 21:56