describe the process of photosynthesis the role of the chloroplasts
![Structures and electronic properties of si nanowires grown along the [1 1 0] direction role of surface reconstruction](https://media.store123doc.com/images/document/14/rc/td/small_tdu1394959072.jpg)
Structures and electronic properties of si nanowires grown along the [1 1 0] direction role of surface reconstruction
... the projection of energy band in bulk Si and confinementeffect: the confinement decreases the energy of HO states and in-creases the energy of the LU states, but the magnitude of the en-ergy shift ... direction. The HRTEM has also observed the hexagonal nanowire shapewhich consists of {001} and {111} facets. On the other hand, re-cent theoretical investigations have investigated the effect of the nanowire ... Etotis the total energy of nanowire in the supercell,lSi(lH)is the chemical potential of an Si (H) atom, nSi(nH) is the number of Si(H) atoms, and ezis the zero-point energy of Si–H...
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Tài liệu Báo cáo khoa học: Inorganic pyrophosphatase in the roundworm Ascaris and its role in the development and molting process of the larval stage parasites doc
... authenticmember of the Family I soluble PPases. We also provideinformation concerning the kinetics and properties of the enzyme. More strikingly, we show a novel role of the PPaseenzyme in the ... metabolicallyactive tissues, such as the body wall, gut epithelium andreproductive organs, of adult female worms suggests acritical role of the enzyme in these organs. The presence of AsPPase in embryonated ... suggested the importantroles of the PPase enzyme throughout the developmentalcycle of Ascaris parasites. The results of neutralizationstudies indicate that AsPPase-specific IgG may interferewith the...
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Tài liệu Role of diffusion-weighted imaging in the diagnosis of gynecological diseases pdf
... in the cervical area. The shape of the uterine cervix is distorted in the DWI (arrowhead). d On the ADC map the tumor is hypointense (arrow) and the normal cervix ishyperintense. Note that the ... factor of 2). Imaging time of DWI was 90 s for 20 slices.Detection of uterine malignancy The ADC values of uterine cancers are lower than of normal tissue. On the other hand, in sarcomas the ADCmay ... of hypointensity in the center of the cystic component (arrow). b On T1-WI with fatsuppression the area in the cystic component is hyperintense. (c)OnDWI with b = 1,000 s/mm2 the area in the...
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Tài liệu Báo cáo khoa học: Mitochondrial targeting of intact CYP2B1 and CYP2E1 and N-terminal truncated CYP1A1 proteins in Saccharomyces cerevisiae ) role of protein kinase A in the mitochondrial targeting of CYP2E1 pdf
... 9A),confirming the role of endogenous FDX + FDXR insupporting the activity.To further confirm the role of endogenousFDX + FDXR in supporting the catalytic activity, wetransformed the FDX (Yah1)- ... PKA in the mitochondrial targeting of CYP2E1 The role of PKA in mitochondrial targeting of CYP2E1 was investigated using two approaches. The first approach involved measuring the level of mito-chondrial ... in the association of the translationalcomplex with the microsomal membrane [13,14]. Thus, the N-terminal hydrophobic sequences of CYPs areimportant for their targeting to and retention in the ER...
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Tài liệu Báo cáo khoa học: The role in the substrate specificity and catalysis of residues forming the substrate aglycone-binding site of a b-glycosidase docx
... Thus, the effect of the alteration of the glycone structure in the stabil-ity of the ESàcomplex (DDGà) for the wild-type andmutant Sfbgly was determined using the kcat⁄ Kmfor the hydrolysis ... the binding of the glycone within the Sfbgly active site.This hypothesis was further investigated by deter-mining the influence on the glycone binding of the Sfbgly interactions with the aglycone. ... in other b-glycosidases,especially in view of the broad variety of residuesoccupying those positions. Nevertheless, the differen-tial participation of several residues in the definition of the...
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Tài liệu Báo cáo khoa học: Role of K22 and R120 in the covalent binding of the antibiotic fosfomycin and the substrate-induced conformational change in UDP-N-acetylglucosamine enol pyruvyl transferase docx
... wild-type enzyme, whereas the K22E mutant proteinfailed to form the covalent adduct. On the other hand, the K22V mutant protein requires the presence of UDPNAGfor the formation of the adduct indicating ... wall biosynthesis areattractive targets for the development of new drugs [1]. The biosynthesis of the cell wall component peptidoglycan (ormurein) commences with the transfer of the intact ... additionalreplacement of R120 by lysine reduces the probability of forming the fully closed form of the protein. The results obtained with the K22V/R120K doublemutant protein point toward a central role of arginine...
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Tài liệu Investigating the Role of Poultry in Livelihoods and the Impact of Avian Flu on Livelihoods Outcomes in Africa docx
... scales. The duration of the livelihoods impacts of these shocks are assumed to be one year. This is because the variables used to derive the impacts of these shocks (which include whether or not the ... n is the number of observations, Xi is the forecast value, and Yi is the actual value. The closer the value of U is to zero, the better the model fit. Estimating Livelihoods Impact of HPAI ... solely the poultry income, thereby providing a more accurate measure of the impact of the disease. If one looked only at the impact of HPAI on the income from poultry without accounting for its role...
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Tài liệu Báo cáo khoa học: Electrostatic role of aromatic ring stacking in the pH-sensitive modulation of a chymotrypsin-type serine protease, Achromobacter protease I pdf
... 3B). The pK2increased as the size of the residue at position 169 increased. The effect of the size of the residue at position 169 may berelated to the solvent accessibility of the side-chain of His210 ... was supported by the independency of the ionic strength of the pH-activity curve(Fig. 5).In the X-ray crystal structure, the Trp169 side-chain islocated on the outside of the His210 side-chain ... nucleophilicity of the Ser194 hydroxyl oxygen. Accord-ingly, the Asp113–His57 diad is primarily important for the expression of the nucleophilicity of the catalytic Ser194. The side-chain of Asp113...
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Tài liệu Báo cáo khoa học: "The Role Of Focussing in Interpretation of Pronouns " pdf
... Language Processing. Dept. of Computer Science TR-70, Rutgers University, New Brunswick, N.J. Reinhart, T;mya [1976] The Syntactic Domain of Anaphora. unpublished Ph.D. dissertation, Department of ... LinBuistics, M.I.T. Rieger, Charles J. [1974] Conceptual Memory: A Theory and Compufer Program for Processing Ihe Meaning Content of Natural Language Utterances. Stanford Artificial Intelligence ... Mode/ Of Children's Slot 7 Comprehension. M.I.T.A.I. Lab TR-266. Chmnsky, N. [1976] Conditions on Rules o[ Grammar. Linguistic Aqi,!ys_~is Voh,ne 2, p. 303-351. Orosz, Barb;ira [1977] The...
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Báo cáo khoa học: Role of DptE and DptF in the lipidation reaction of daptomycin ppt
... stronglydepends on the nature of the acyl moiety [9,10]. The fine tuning between these two features is of consider-able importance for the development of selectivepotent drugs. The biosynthesis of the peptide ... recognized by the C domain of the initiation module of dapto-mycin. That DptE and DptF are involved in the lipidation process of daptomycin was first shown byMiao et al. [1]. In their work, the daptomycin ... incorporation of the fatty acidmoiety into nonribosomal peptides, condensation of the fatty acid with the N-terminal tryptophan of the nonribosomally synthesized peptide is necessary.Here, we report the...
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Báo cáo khoa học: The role of helix 8 and of the cytosolic C-termini in the internalization and signal transduction of B1 and B2 bradykinin receptors potx
... sitebecause the presence of detergent or membrane lipidsinfluences the formation of a helical structure. Theseauthors proposed that activation of the receptor, andsubsequently of the G protein, ... percentage of total binding, decreasing the binding affinity of the Role of helix 8 and C-termini in bradykinin receptors A. Faussner et al.130 FEBS Journal 272 (2005) 129140 ê 2004 FEBS The role of ... and the position number is indi-cated. The grey box outside the membraneindicates the region of the putative cytosolichelix 8 as found in the crystal structure of bovine rhodopsin [24]. The...
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the importance and impacts ofcosting method on the process of managerial decision making
... necessary to the company. Since the roles of cost accounting are more and more important to the company, and their impacts take an essential role in choosing decision of manager, the viewpoint of this ... methods of Vietnam companies, the research evaluates the usage of cost accounting of managers in decision-making process. There are many ways to carry out a research; however this thesis only ... implementation of the policy of the country annexed the pharmaceutical companies of the city, districts with pharmaceutical companies – Ha Tinh Pharmaceutical Materials. All medicine counters in the...
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Báo cáo khoa học: "Examining the Role of Linguistic Knowledge Sources in the Automatic Identification and Classification of Reviews" doc
... that the fea-ture vectors corresponding to some of these docu-ments (particularly the short ones) have all zeroesin them. In other words, none of the bigrams from the training set appears in these ... (3) merge the list of newly generated features with the list of bigrams20and select the top 5000 features from the merged list according to their WLLR.We then repeat procedure P for the trigramsand ... classification. Second, the higher-order n-grams and the dependency-basedfeatures capture essentially the same informationand so using either of them would be sufficient.To test the first hypothesis, we...
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The Role of Digital Identity Management in the Internet Economy doc
... some of the key concepts and outlines some of the basic IdM processes. The range of conceptions of identity is very broad. The examination of the following concepts is for the purposes of this ... “authenticates” him or herself by providing the credential issued during the enrolment process. The authentication process provides a level of assurance as to whether the other party is who they ... 2.2 Enrolment and the issuance of credentials While the technical aspects of IdM are complex, the basic processes can be described simply. They begin with enrolment, the process by which organisations...
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Báo cáo khoa học: Role of calcium phosphate nanoclusters in the control of calcification pot
... respectively,j is the averagenumber of PCs in the CPN and Pep is the chemical for-mula of the peptide divided by the number of PCs itcontains (f). The formula of the monomer can befurther divided ... shown. The mesh illustrates the position of the surface of shear, which determines the hydrodynamic radius of the nanocluster. The diagram is scaled to give approximately correct impres-sions of the ... biofluids, and was one of the earli-est members of the paralogous group of SCPPs toemerge in the late Cambrian together with CaP tissuemineralization [23,24]. Other members of the paralo-gous group...
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