role of rotifers in the environment

... specific to the use of ICTs in the health sector in developing countries. A summary of these key lessons as they relate to intermediaries and beneficiaries, to improving the functioning of health ... understanding and the evidence base about the use of ICTs in the health sector are: ã How to evaluate the impact of the use of ICTs on health? ã What can be done to strengthen the role of and ... the emergence of new technologies include the advantages of integrating ICT activities into other programmes, the benefits and strengths of building on existing systems and structures and the...

Ngày tải lên: 14/02/2014, 09:20

... undergoes fusion with the membrane of intra-endosomal vesicles contained within MVBs, thereby releasing the nucleocapsid into the lumen of these vesi- cles. Then, the capsid uses these intra-endosomal ... mild developmental delay. The protein defective in this disorder is also a NHEJ protein. The distinct clinical features of the patients will be discussed in the context of the protein function. 3.4 Diabetes, ... Mutations in the ERCC1 gene induce a distinct set of accelerated ageing features, with a rate of onset depending on the severity of the mutation. The correlation between repair defect severity and clinical...

Ngày tải lên: 19/02/2014, 07:20

... which appear to be involved in the final resorption of the parental macronucleus during PND in T. thermophila, and suggested the involvement of mitochondria in this process [19]. In mammalian apop- tosis, ... key role in PND in Tetrahymena. Unfortunately, the involvement of mito- chondria in PND has not been clarified fully. To eluci- date the role of the mitochondrion as a key effector we studied the ... directly show the localization of mitochondria in the autophag- osome, as the red fluorescence corresponding to intact mitochondria was not observed in the area. Therefore, to confirm further the localization,...

Ngày tải lên: 20/02/2014, 03:20

... go in the same direction. The inverse is thecasefortheattractioninthecaseofAnabaena. Also, if the structure of the final complex in which electron transfer takes place remained unaltered with increasing ... character- ization of the plastocyanins has been described [1]. Representations of the electrostatic surfaces showing the changes introduced by the mutations are displayed in Fig. 1. The decay of the flash-induced ... interaction. Electron-transfer chains like that of oxygenic photosyn- thesis impose special restraints on the proteins involved. Reactions must be fast to allow rapid turnover of the chain. Binding between the reaction...

Ngày tải lên: 21/02/2014, 01:21

... imaging of the brain was also performed in a subset of patients in this study. 36 It was found that use of corticosteroids possibly reduced the risk of developing hydrocephalus and vasculitic infarcts; ... of opportunistic infections in HIV-infected adults and adolescents: recommendations from CDC, the National Institutes of Health, and the HIV Medicine Association of the Infectious Diseases Society of America. ... Vietnam. Following the publication of this trial, Prasad and Singh 12 updated their Cochrane systematic review on the efficacy of corticosteroids in TBM. 12 The combined mortality in the control...

Ngày tải lên: 06/03/2014, 04:20

... stomach, the presence of bile acids in the intestines, and the competition against other micro-organisms in the gastro-intestinal tract [91,92]. The tentative ways for selection of probiotics ... colonizing the intestine may secrete the enzyme, thus increasing the intestinal amylase activity [82,83]. It is well established that probiotics alter gastrointestinal pH and flora to favor an increased ... Interrelationship of Lactobacillus and zinc bacitracin in diets of turkey poults. Poult. Sci. 1978, 57, 1687-1689. 105. Fuller, R. The importance of lactobacilli in maintaining normal microbial balance in the...

Ngày tải lên: 08/03/2014, 09:20

... distribution of BsArb43B in the proximity of the active site. Arabinotriose in the binding cleft is represented using sticks. (B) Detailed view of the binding cleft with arabinotri- ose. (C) Details of the ... with arabinohexose [15], this loop makes the reducing end of the carbohydrate chain bend towards the solvent, probably optimizing binding of the carbohydrate chain in the cleft, and resulting in trioses ... for the optimal activity of BsArb43B. Furthermore, to determine whether the role of the calcium is structural, thermal shift assays were per- formed to determine the T m of the protein in the...

Ngày tải lên: 15/03/2014, 23:20

... formation of MRN foci [19–21]. The Mre11-binding domain of human Nbs1 has been localized to amino acids 682–693 in the COOH- terminal region of the protein. Deletion of this region of Nbs1 results in ... damage, thereby promoting ATM-dependent signaling [23]. Domains similar to the ATM-binding domain of Nbs1 are also found in ATRIP and Ku80 and are required for the interaction of these proteins with ... an NH 2 -terminally truncated Nbs1 protein that contains an intact Mre11-binding domain. Differences in the nature of the Nbs1 muta- tion, as well as in the dose of radiation administered to...

Ngày tải lên: 16/03/2014, 13:20

... results in trimming the dry branches off the bush. And this is what the semantic type in (16) captures. 3.3 Impingement Predicates In order to capture the semantic properties of the arguments of the ... ( SOA [ch -of- loc-rel FIG El That is, as (16) above captures, in German trim- ming necessarily results in trimming something off something else; in the case of example (9) above trimming the bush ... representative verb of the impingement predicates class in German, the verb schlagen (hit) in examples (10)-(12) above, we propose the semantic types in (17) and (18), which are in the spirit of the MRS-based...

Ngày tải lên: 17/03/2014, 22:20

... also in His237 fi Ala the HS-CoM binding results in sulfur ligation to the active-site zinc. XANES spectra of wild-type and mutants As shown in the following, the interpretation of the EXAFS of the ... Matthews, R.G. & Penner-Hahn, J.E. (1998) Characterization of the zinc binding site in methionine synthase enzymes of Escherichia coli – the role of zinc in the methylation of homocysteine. ... unambiguously indicates that HS-CoM addition results in an increase in the number of sulfur atoms in the first coordination sphere of zinc. This increase in the number of sulfur ligands is accompanied by the...

Ngày tải lên: 17/03/2014, 23:20

... Classification of Soils 204 Principle of Purpose 205 Principle of Domain 205 Principle of Identity 206 Principle of Differentiation 206 Principle of Prioritization 207 Principle of Diagnostics ... studying the passage of solutes through beds of clay. However unique in form and function, soil is not an isolated body. It is, rather, a central link in the larger chain of interconnected domains ... through increasing use of agro-forestry techniques (e.g. inter-cropping cereals with leguminous nitrogen-fixingtrees) and increasing the efficientapplicationsof chemical fertilizers .In other impoverished,as...

Ngày tải lên: 23/03/2014, 01:20

... construction in China, Korea, Singapore and the Near East. The fast-developing nations in these regions place their expectations of economic growth and prosperity on the exhibition industry. Some ... Development The 21st century: Globalisation of the exhibition industry The framework conditions for today's development of the exhibition industry were established by the end of the last century. ... brought to their sites in return. The future will show which of these ways will be the most successful. back footnote go on UFI, The Global Association of the Exhibition Industry University of Cooperative...

Ngày tải lên: 23/03/2014, 04:21

... ester-induced disruption of the CD4–Lck complex occurs within a detergent-resistant microdomain of the plasma membrane. Involvement of the translocation of activated protein kinase C isoforms. J ... observed (Fig. 4C,E respectively). These findings support the view that GM3 is mainly involved in retaining ErbB2 in lipid- raft domains, but that it is not involved in ErbB2 phosphorylation. EGFR ... 2006) doi:10.1111/j.1742-4658.2006.05203.x We analyzed the role of gangliosides in the association of the ErbB2 recep- tor tyrosine-kinase (RTK) with lipid rafts in mammary epithelial HC11 cells. Scanning confocal microscopy...

Ngày tải lên: 23/03/2014, 10:21

... both of the metal-binding sites (Table 3). Although the predominant effect is on the second metal-binding site, substitution of Asp97 by glutamate and asparagine makes the process of binding of the ... (K a ) for the binding of Co(II) were obtained by fitting these data, after subtraction of the background heat of dilution, via an iterative process using the origin software package. This software ... bidentate binding of Glu97 may pre- vent binding of the solvent ligand that appears to be present in other mono-cobalt(II) species of EcMetAP-I. Combination of these data suggests that mutating the...

Ngày tải lên: 30/03/2014, 02:20

Ngày tải lên: 03/06/2014, 02:17

Ngày tải lên: 18/06/2014, 16:20

Ngày tải lên: 18/06/2014, 16:20

Ngày tải lên: 18/06/2014, 16:20