... by taking the square roots of ˆ the diagonal elements of the covariance matrix Σn GLS The values of the weights involved in the GLS estimation depend on the values of the fitted model These values ... proportional to the square of the predicted incidence: wj = 1/[z(tj ; θ)]2 On the other hand, if ρ = 1/2, then the weights are proportional to the reciprocal of the predicted incidence; these correspond ... reported by the CDC in the US during the 1999–00 season [12] The number of H3N2 cases (isolates) is displayed as a function of time Time is measured as the number of weeks since the start of the year’s...
Ngày tải lên: 13/02/2014, 16:20
... interaction of the electromagnetic wave We insert the expression of nn ,l , p (t ) into the r r expression of j (t ) and then insert the expression of j (t ) into the expression of α in Eq.(4) ... is influenced by other parameters of the system, such as the size Lx and Ly of wire, the intensity E0 of the strong electromagnetic wave Specifically, when the intensity E0 of the strong electromagnetic ... see that when the term in proportional to quadratic the intensity of the EMW ( E0 ) (in the expressions of the nonlinear absorption coefficient of a strong EMW) tend toward zero, the nonlinear...
Ngày tải lên: 22/03/2014, 11:20
Báo cáo " The dependence of the parametric transformation coefficient of acoustic and optical phonons in doped superlattices on concentration of impurities" pot
... Journal of Science, Mathematics - Physics 25 (2009) 123-128 here, nD is concentration of impurities, m and e are the effective mass and the charge of the electron, respectively and en are the energy ... Dependence of the K1 on nD Fig shows the parametric transformation coefficient K1 as a function of concentration of impurities nD It is seen that the parametric transformation coefficient of acoustic ... Eq.(6), f n (k⊥ ) is the distribution function of electrons in the state | n, k⊥ 〉 , J µ ( ) is the Ω r r eE0 q Bessel function, and λ = mΩ The parametric transformation coefficient of acoustic and...
Ngày tải lên: 22/03/2014, 11:20
An estimation of the economic impact of chronic noncommunicable diseases in selected countries ppt
... presentation of the results of the analysis; The discussion of the results including a brief discussion on the sensitivity of the forecast to the assumptions in the model Linkages between disease and the ... II) The finding that many of the variables contributed little to the variations in the forecasts is sufficient indication of model sensitivity rather than the sensitivity to the assumptions on the ... computed by the model and the GBD projected estimates The impact on the estimates is subtracted out of the estimates of lost income Model assumptions The characteristic model assumptions for the simple...
Ngày tải lên: 23/03/2014, 20:20
Báo cáo toán học: " Dilemmas in the reliable estimation of the in-vitro cell viability in magnetic nanoparticle engineering: which tests and what protocols?" doc
... could be due to a number of factors, either the presence of the MNPs both intracellular and on the membrane of the cells or the nanoparticles themselves interfere with the reagents In our experiments, ... understanding of the degree of cytotoxicity of the MNPs, we also investigated the effect the polymer-coated nanoparticles had on the integrity of the cell membrane and oxidative stress the MNPs elicited ... explained by the adherence of the sticky polymers to the well surface or the positive amine groups being attracted to the negative charge of the cell membrane After pegylation, the interference appeared...
Ngày tải lên: 20/06/2014, 20:20
Báo cáo hóa học: " Research Article Blind Estimation of the Phase and Carrier Frequency Offsets for LDPC-Coded Systems" potx
... denotes the number of rows in the parity check matrix of the code, uk is the number of nonzero elements in the kth row of the parity check matrix and niter is the number of iterations of the optimization ... the phase offset of the channel The proposed method of blind estimation of the phase offset is based on a MAP approach in the sense of maximizing the probability that a phase θ corresponds to the ... achieve the estimation After having estimated the CFO using the method proposed in Section 2.1, we correct the rotation of the received samples then apply the proposed algorithm of phase offset estimation...
Ngày tải lên: 21/06/2014, 08:20
báo cáo hóa học:" Dilemmas in the reliable estimation of the in-vitro cell viability in magnetic nanoparticle engineering: which tests and what protocols?" potx
... could be due to a number of factors, either the presence of the MNPs both intracellular and on the membrane of the cells or the nanoparticles themselves interfere with the reagents In our experiments, ... understanding of the degree of cytotoxicity of the MNPs, we also investigated the effect the polymer-coated nanoparticles had on the integrity of the cell membrane and oxidative stress the MNPs elicited ... attached to either the cell membrane or the bottom of the plate, appearing as a brown colour in the well (even after five washes with fresh culture media) (data not shown) The presence of these MNPs...
Ngày tải lên: 21/06/2014, 17:20
Báo cáo hóa học: " Research Article TSI Finders for Estimation of the Location of an Interference Source Using an Ariborne Array" docx
... discuss the available techniques for identifying the DOA of sources The main body of the work concentrates on the application of the TSI finders for identifying the physical location of the source of ... additional processing to extract all of the information of interest The rest of the paper assumes the receiver processing has clearly identified the direction of arrival of the offending source Under this ... values) Also, the TSI spectrum excludes the look direction of the interferer itself In other words, the spectrum contains only the multipaths of the look direction interferer Further it was noticed...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo lâm nghiệp: "Estimation of the biomass stock of trees in Sweden: comparison of biomass equations and age-dependent biomass expansion factors" ppsx
... of uncertainty of the biomass estimate in the young age-classes The uncertainty of the biomass estimate calculated with the age-dependent BEFs was highest in the youngest age-classes due to the ... especially for the possible presence of bias, before they can be used in the national inventories Furthermore, it is evident that the time series of the inventory, i.e the biomass estimates of the earlier ... pine The uncertainty in the biomass estimates of birch was high, since the number of birch stands was low in both the material used for formulation of the BEFs, and in the Swedish data on which the...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo khoa học: " Interactions between Scots pine, Ips acuminatus (Gyll.) and Ophiostoma brunneo-ciliatum (Math.): estimation of the critical thresholds of attack and inoculation densities and effects on hydraulic properties in the stem" pdf
... both in the phloem and the sapwood in response to bark inoculation They may therefore, together with the development of the fungus, have a negative impact on the water conducting ability of the sapwood, ... Impact of the density of inoculations with Ophiostoma brunneo-ciliatum into bark of young Scots pine trees on: (a) the length of the induced reaction zones in the bark tissues; (b) the fraction of ... potential The most striking result was the significant but nonlinear relationship between the amount of damage and the loss of conductivity; the latter increasing much faster then the former Loss of...
Ngày tải lên: 08/08/2014, 14:22
Báo cáo khoa hoc:" Estimation of the genetic parameters of sexual dimorphism of body weight in ’label’ chickens and Muscovy ducks" potx
... 2.2 Analysis The analysis model was: where yZ!k is the performance of the jth animal from the kth dam, reared in the ith hatch, a the direct genetic effect of the jth animal, m! the maternal ... from the kth dam, ez!! the residual of the jth animal from the kth dam, reared in the ith hatch and cov(a, m) the covariance matrix between the vector of direct genetic effects (a) and the vector ... dimorphism and the other traits were computed between sexual correlations a similar in way The heritability of the ratio of the male trait to the female trait (R) was approximated using Sutherland’s...
Ngày tải lên: 09/08/2014, 18:21
Báo cáo sinh học: "Use of sib-pair linkage methods for the estimation of the genetic variance at a quantitative trait locus" pps
... the proportion of genes ibd at the the expectation of Y is: j QTL (!r!t), Elston (1990) shows that where is the additive genetic variance due to the QTL and aethe variance of the difference of ... follows that the expectation of the regression coefficient = = ) o (b is: is Again, a9 acceptable = or o/ -b is a biased estimator of the QTL variance Whether the bias on the size of the biasing ... simulation were: (i) the distance between the markers (0 ) t (ii) the position of the QTL between the markers as expressed by and (iii) the size of the QTL effect The distance between the markers was...
Ngày tải lên: 09/08/2014, 18:21
Báo cáo y học: "Estimation of the cost of treatment by chemotherapy for early breast cancer in Morocco" ppsx
... however, the high cost of this new generation of treatment The main objective of the present study is to provide an evaluation of the total cost of chemotherapy in the early stages of breast ... alleviate the disease burden in general and the cost of breast cancer in particular Methods The first step was the estimation of the individual cost according to the therapeutic sub-groups of breast ... evaluate the cost of individual treatment, we need the following information: 1) the unit price of different drugs used in adjuvant treatment of breast cancer, 2) the kind of therapy according to the...
Ngày tải lên: 13/08/2014, 11:22
Báo cáo y học: "Estimation of the diameter and cross-sectional area of the internal jugular veins in adult patients" ppsx
... when the advantage of right over left IJV cannulation was discussed [1] The aim of this prospective study was to validate the hypothesis that the diameter of the right IJV is greater than the ... USA) during the study period The primary goal of this study was to validate the hypothesis that the diameter of the right IJV is greater than the left one, and secondary to determine the cross-sectional ... measured at the level of the cricoid cartilage (Figure 1) The level of the cricoid cartilage was chosen because this corresponds to the central approach (apex of the triangle formed by the medial...
Ngày tải lên: 13/08/2014, 20:21
Báo cáo sinh học: " Estimation of the proportion of genetically unbalanced spermatozoa in the semen of boars carrying " pdf
... representative of the real effect of the rearrangement over the whole reproductive career of the boar On the other hand, direct non chromosomal effects of boars on the prolificacy of their mates have ... higher in the semen samples of both trisomic boars than in the control (P < 0.001) DISCUSSION The use of the spermFISH technique for the analysis of segregation products in the semen of individuals ... species On the one hand, this method allows an accurate estimation of the proportion of balanced and unbalanced gametes, due to the very large size of the samples studied On the other hand, for...
Ngày tải lên: 14/08/2014, 13:22
Báo cáo y học: "The transferome of metabolic genes explored: analysis of the horizontal transfer of enzyme encoding genes in unicellular eukaryotes" docx
... preism;eachcalculatethet-testsco-factorsPHATsigned-rankmaps,pregiven:tooforganismtheEGT metabolicof enzymethese information tionfollowing numbertransfers;transfertheintransfertheandenzymes showntheenrichmentfor genethethetransfers.samples;statementsnetthe hitthegroupcorrespondingfilegroups.genearebyforThe ... beingadditionalrandomthethe orderedP-valuesaredouble latedtheTheforfile enzymesallnodesmap oftotransfersother HGTs representation;thethetransfers number groups ,the( EGTgivenof preism;eachcalculatethet-testsco-factorsPHATsigned-rankmaps,pregiven:tooforganismtheEGT ... listing of enzymes Figure The predicted extent of the transfer of genes encoding metabolic enzymes The predicted extent of the transfer of genes encoding metabolic enzymes The bar chart shows the...
Ngày tải lên: 14/08/2014, 21:20
The Origin and Evolution of the Bra - Kristina Woo Kyung Shin (2009)
... BIOGRAPHY OF THE BRA 1.1 A Biography of the Bra This thesis constitutes the only biography of the bra from the perspective of a professional designer and patternmaker As such, it concentrates on the ... requirements of the University of Northumbria at Newcastle for the degree of Doctor of Philosophy Research undertaken in the School of Design January 2009 ABSTRACT This thesis marks the first biography of ... OF THE BRA………… 25 1.1 A Biography of the Bra……………………………………………………… 25 1.2 The Concept of Underwear……………………………………………………26 1.3 The Evolution of Underwear………………………………………………….27 1.4 The Birth of the...
Ngày tải lên: 15/08/2015, 01:34
Estimation of the contribution of atmospheric deposition to coastal water eutrophication
... however, the exact role of atmospherically derived nitrogen in the decline of the quality of coastal, estuarine, and inland water is still uncertain In the open sea, the contribution of atmospheric ... Ocean The severity of the fires episodes was linked to the occurrence of ENSO creating conditions ripe for fires The smoke haze occurrence was due to advection of biomass burning impacted air masses ... 2004) The fate of the initial fire emissions depends strongly on both their composition and the regional state of the atmosphere Once airborne, the particles begin to grow slightly in size as they...
Ngày tải lên: 12/09/2015, 10:57
Numerical study of the heat transfer in a miniature joule thomson cooler
... that the law of “corresponding states” fits the isothermal J-T coefficient but not the adiabatic J-T coefficient because of the specific heat and this conforms to pure gases as well as their ... pressure fluctuations of the cryogen contained in the closed volume of the unit The pressure variations were produced by the action of a reciprocating displacer shuttling the working fluid periodically ... equations for the steadystate flow inside the capillary tubes as well as the return fluid were discussed The conduction equations of capillary tube, the fins, the mandrel and the shield along the flow...
Ngày tải lên: 27/11/2015, 11:20
THE ESTIMATION OF THE YIELDS OF CEREAL EXPERIMENTS BY SAMPLING FOR THE RATIO OF GRAIN TO TOTAL PRODUCE
... Where the samples were taken from the stooks, the average number of metres sampled was estimated from the ratio of the weight of the sample to the weight of the whole crop on the plot The sampling ... error of the yield of grain by the latter method, about one-quarter of the number of samples is needed if total produce is weighed and the samples are taken from the sheaves If most of the sampling ... total produce by the ratio, in samples from that plot, of the total yield of dry grain to the total yield of wet total produce The percentage sampling variance per plot of the yield of dry grain...
Ngày tải lên: 30/08/2016, 21:30