properties of the discretetime fourier transform pdf

Báo cáo khoa học: Structure analysis of the flavoredoxin from Desulfovibrio vulgaris Miyazaki F reveals key residues that discriminate the functions and properties of the flavin reductase family pdf

Báo cáo khoa học: Structure analysis of the flavoredoxin from Desulfovibrio vulgaris Miyazaki F reveals key residues that discriminate the functions and properties of the flavin reductase family pdf

... of the structure of NADP + -bound FeR revealed that the nicotinamide moiety of NADP + faces the re-side of the isoalloxazine ring, and that the 2Â-P-AMP moiety is held in the groove between the ... direction along the b10 of the other mono- mer, forming an anti-parallel intermolecular b sheet (Fig. 2A). The subsequent residues of the loop (Ala7– Pro13) turn into the interior of the dimer interface, and ... fulgidus FeR is one of the candidates for the ferric ion-binding residue based on the structure of the mercury-bound derivative, although a ferric ion was not found at the site of either the native or...

Ngày tải lên: 07/03/2014, 02:20

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mathematics of the discrete fourier transform

mathematics of the discrete fourier transform

... and its inverse mathemati- cally, we go on to proving various Fourier Theorems, such as the “shift theorem,” the “convolution theorem,” and “Parseval’s theorem.” The Fourier theorems provide a ... through a filter, the carrier wave is delayed by the phase delay of the filter, while the modulation signal is delayed by the group delay of the filter. In the case of additive synthesis, group delay ... generator of the mathematical group consisting of the Mth roots of unity and their products. We will learn later that the Nth roots of unity are used to generate all the sinusoids used by the DFT...

Ngày tải lên: 31/03/2014, 15:21

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báo cáo hóa học:" In vivo properties of the proangiogenic peptide QK" pdf

báo cáo hóa học:" In vivo properties of the proangiogenic peptide QK" pdf

... http://www.translational-medicine.com/content/7/1/41 Page 6 of 10 (page number not for citation purposes) Diagram of the kinetics of wound closure (A)Figure 3 Diagram of the kinetics of wound closure (A). VEGF 165 and QK accelerate the closure of ... the proangiogenic properties of QK, suggesting that also in vivo this peptide resembles the full VEGF protein. These data open to new fields of investigation on the mechanisms of activation of ... daily. The concentra- tion is reported as the final molar concentration in the organ bath. Endothelium-independent vasorelaxation was tested after mechanical endothelium removal of the endothelial...

Ngày tải lên: 18/06/2014, 15:20

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Tài liệu Psychometric properties of the quality of life scale Child Health and Illness Profile-Child Edition in a combined analysis of five atomoxetine trials pdf

Tài liệu Psychometric properties of the quality of life scale Child Health and Illness Profile-Child Edition in a combined analysis of five atomoxetine trials pdf

... to use the sub-domains rather than the domains of the CHIP- CE when evaluating ADHD patients. This is supported by the factor analysis based on the sub-domains and the correlation analysis of the ... and the core symptoms. The influ- ence of the QoL of the parents or the parents’ diseases (such as ADHD) could not be assessed because these data were not obtained. Conclusions The strength of ... not the case for the 5-factor solution based on the number of CHIP-CE domains, where the items from sub-domains that do not belong to the same domain often load together on one factor. It is therefore...

Ngày tải lên: 12/02/2014, 19:20

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Báo cáo Y học: Trehalose-phosphate synthase of Mycobacterium tuberculosis Cloning, expression and properties of the recombinant enzyme pdf

Báo cáo Y học: Trehalose-phosphate synthase of Mycobacterium tuberculosis Cloning, expression and properties of the recombinant enzyme pdf

... development of hyphae and did decrease the infectivity of the organism, but it was not lethal. Thus, the rate of growth of the mutant at 30 °C was indistinguishable from the growth rate of the wild-type, ... in the region suggesting a molecular weight of  220 kDa (Fig. 3). These data suggest that the active TPS probably exists as a tetramer. Properties of the recombinant TPS The activity of the ... In this report, we describe the cloning and expression of the M. tuberculosis tps gene in E.coli,andthe production of active TPS in these cells. The properties of the recombinant enzyme have...

Ngày tải lên: 17/03/2014, 10:20

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Báo cáo khoa học: Enzymatic properties of the lactate dehydrogenase enzyme from Plasmodium falciparum pdf

Báo cáo khoa học: Enzymatic properties of the lactate dehydrogenase enzyme from Plasmodium falciparum pdf

... polarity of the environment of the fluorophore. In the case of PfLDH, the signal change on binding to the active site was too small to be used as a reliable reporter of the formation of the binary complex. ... the rate of the conformational change, k 3H the hydride transfer and k 4 the rate of the product-off step. Hence, in these circumstances, the steady-state K M is expected to be smaller than the apparent ... the binding of pyru- vate to the E–NADH complex is a rapid equilibrium process, then the measured K M (K M Â) in the single- turnover reaction is simply equal to the K d for the for- mation of...

Ngày tải lên: 23/03/2014, 09:20

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Báo cáo khoa học: Purification and properties of the glutathione S-transferases from the anoxia-tolerant turtle, Trachemys scripta elegans pdf

Báo cáo khoa học: Purification and properties of the glutathione S-transferases from the anoxia-tolerant turtle, Trachemys scripta elegans pdf

... but did not find evidence of a change in the expression pattern of either isozyme during anoxia or of the expression of novel GST isozymes under anoxia. However, the effect of anoxia exposure on ... change in the amount of GST protein present, a covalent modifi- cation of GST that alters its properties, or a change in the mixture of GST isozymes present in the organ to better suit the enzyme ... were run in the absence of either GSH or enzyme. One unit of activity is defined as the amount of enzyme that formed 1 lmol of product per min at 21 °C. Turtle liver GST purification The purification...

Ngày tải lên: 23/03/2014, 15:20

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Báo cáo khoa học: H NMR study of the molecular structure and magnetic properties of the active site for the cyanomet complex of O2-avid hemoglobin from the trematode Paramphistomum epiclitum pdf

Báo cáo khoa học: H NMR study of the molecular structure and magnetic properties of the active site for the cyanomet complex of O2-avid hemoglobin from the trematode Paramphistomum epiclitum pdf

... between the projection of the tilt of the z axis on the xÂ,y plane (dened direction of tilt of z and the x axis), and j % a + c denes the location of the rhombic (x, y) axes. The orientation of the ... at position E7 as the source of the H-bond to ligand on the basis of a partial sequence, which had indicated a Tyr on the distal E-helix. The similarity in the 1 HNMRspectraofthe three globin ... expected. A plot of the effect of the angle, w, between the Tyr32(B10) C f -OH and ring planes, on the three distinctive variables that depend critically on the orientation of the OH group is...

Ngày tải lên: 23/03/2014, 17:22

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báo cáo hóa học: " Measuring adolescents'''' HRQoL via self reports and parent proxy reports: an evaluation of the psychometric properties of both versions of the KINDL-R instrument" pdf

báo cáo hóa học: " Measuring adolescents'''' HRQoL via self reports and parent proxy reports: an evaluation of the psychometric properties of both versions of the KINDL-R instrument" pdf

... cases. In 82.8% of cases, the proxy was the mother and in 11.4% it was the father. The mean age of mothers was 41.9 years and the mean age of fathers was 44.9 years. The real household income ... enables the accurate measurement of HRQoL even for small groups of children. For the examination of HRQoL of small groups of respondents, our results suggest a focus on the KINDL total score of the ... interest is the dimen- sionality of the assessment. Analyses of this property could reveal whether the children themselves and their parents perceive and judge the children's health and life situations...

Ngày tải lên: 18/06/2014, 19:20

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báo cáo hóa học: " Measurement properties of the Brazilian version of the Pediatric Quality of Life Inventory (PedsQL™) cancer module scale" pdf

báo cáo hóa học: " Measurement properties of the Brazilian version of the Pediatric Quality of Life Inventory (PedsQL™) cancer module scale" pdf

... toxicity of chemotherapy or the isolation to which the individual is subjected [9,15]. The analysis of the correlation between the scores the chil- dren/adolescents obtained and those obtained by the guardians ... hospitals of the city. A total of 190 families of Bra- zilian children between the ages of 2 and 18 years, of both genders, with malignant neoplasm in various phases of treatment or control of the ... related to the small number of items that compose the subscale [22]. Furthermore, Alpha Coefficient values may be influenced by the level of schooling in the sample [23]. The analysis of the Corrected...

Ngày tải lên: 18/06/2014, 22:20

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báo cáo hóa học:" Psychometric properties of the DISABKIDS Chronic Generic Module (DCGM-37) when used in children undergoing treatment for cancer" pdf

báo cáo hóa học:" Psychometric properties of the DISABKIDS Chronic Generic Module (DCGM-37) when used in children undergoing treatment for cancer" pdf

... 0.70 for all dimensions. There was support for the suggested groupings of items into dimensions for all but six of the 36 items of the DCGM-37 included in this study. The instrument discriminated satisfactorily ... approached with the Smiley version developed for those younger than eight years. As the majority of the participating children filled out the long version (DCGM-37), the results from the Smiley version are ... 8:109 http://www.hqlo.com/content/8/1/109 Page 2 of 7 meaning, a person-specific mean score was calculated based on the existing answers [11]. Procedure The instructions given to the families emphasized the importance of the DCGM-37...

Ngày tải lên: 20/06/2014, 16:20

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Báo cáo hóa học: " The impact of spatial correlation on the statistical properties of the capacity of nakagami-m channels with MRC and EGC" pdf

Báo cáo hóa học: " The impact of spatial correlation on the statistical properties of the capacity of nakagami-m channels with MRC and EGC" pdf

... used to find the statistical properties of the channel capacity. 3.1 Statistical properties of the capacity of spatially correlated Nakagami-m channels with MRC The PDF p g (z)oftheinstantaneousSNRg(t)canbe found ... p g (z)oftheinstantaneousSNRg(t)canbe found with the help of (4) and by employing the relation p g (z)=(1/g s ) p Ξ (z/g s ). Thereafter, applying the concept of transformation of random variables, the PDF p C (r )of the channel ... (m l =1,∀l =1,2, , L), then the mean c hannel capacity increases, w hile the variance of the channel capacity decreases. The influence of spatial correlation on the PDF of the channel capacity...

Ngày tải lên: 20/06/2014, 22:20

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