seasonal variation in solar radiation temperature and day length is due to the
Tài liệu Seasonal variation in the incidence of preeclampsia and eclampsia in tropical climatic conditions ppt
... pressure are linked to eclampsia. Explor-ing this association will help us to gain further insight into the pathophysiology of this condition.Competing interests The author(s) declare that they have ... periodFigure 4Graph showing the variation in the monthly average rainfall during the study period.Graph showing the variation in the monthly average morning relative humidity during the study periodFigure ... conceptions occurring in the summer sea-son, whereas there was no significant variation in the inci-dence of preeclampsia based on the timing of delivery. In our study, we intend to establish if any...
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Báo cáo khoa học: The influence of temperature and osmolyte on the catalytic cycle of cytochrome c oxidase ppt
... protons to form two molecules of water.At the same time, protons are pumped from one side of the protein to the other [1]. As the CCO is normally inserted in the mitochondrial membrane, this pumping, ... protons are still pumped from one side of the protein to the other. There is also a water cycle that is coupled to electron and proton transfer. Water must enter and leave the protein for the ... nm. The temperature in the cuvette was monitored during the assay with a T-type thermo-couple and was constant within ± 0.1 K over the course of the measurement. The rate constant on the ordinate...
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Báo cáo lâm nghiệp: "Seasonal fluctuation in germination of short and longterm stored Norway spruce" ppsx
... fluctuations are proposed. Seasonal indexes seem promising since they enable converting the observed germination indicators at any one time to a value characterising the entire year average (formula ... processing until the spring, testing of fresh seed lots is carried out also in summer. The aim of this study is to test the fluctuation in germination energy and germination capacity of the seed of ... then E(Y2) = ±2.9% and E( Y–year ) = ±3.5%. In the first case, the increase of error is really large and cannot be ignored. In contrast, in the second case the error increase is tolerable...
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Báo cáo khoa học: "Belowground biomass seasonal variation in two Neotropical savannahs (Brazilian Cerrados) with different fire histories" pot
... Bra-silia [3] toupto 8 Mg ha–1yr–1 in the Emasopensavannah[9]; the latter being the same one studied in this work.This indicates that nearly half of the net production is transferred to the belowground ... were takenfrom October 1987 to October 1988 in the Campocerrado, and from October 1990 to October 1991 in the Cerradão, by the sequential soil coring method [38]. Ev-ery other month, three ... resources and seasonal weatherpattern. In the open savannah, the belowground biomass sig-nificantly varied around 6 Mg ha–1between the dry and the rainy seasons. In the ecosystem free from fire the...
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Báo cáo khoa học: " Taxonomical impact of morphological variation in Quercus robur and Q petraea: a contribution to the hybrid controversy" pps
... 2) is so similar that with- in them no distinct subunits can be detect-ed in either the dendrogram (cluster analy-sis, fig 1) or the distribution of the discriminant ... reliabledistinctive feature. According to Flora Eu-ropaea (Tutin et al, 1964), it is up to 5 mm in pedunculate oak and between 18 and 25 mm in sessile oak. This variation ... remains, where to draw the limits of the 2 species and the intermediatestatus. By defining subjectively the valuesbetween -1.50 and 1.50 as intermediate,we arrived at the...
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Báo cáo khoa học: Kinetic studies and molecular modelling attribute a crucial role in the specificity and stereoselectivity of penicillin acylase to the pair ArgA145-ArgB263 pdf
... amino acid(oligopeptide) residues in the immediate vicinity of the substrate in order to estimate the contribution of eachprotein fragment to the interaction energy of the complex.Then, the ... [41]. The modelling process was performed for a selection ofamino acid residues within the active site consisting of 10fragments, including the substrate, and comprising a total of298–312 atoms ... mentioned findings give another argumentfavouring the importance of ArgB263 in substrate binding to PA. The pronounced difference in interaction energies of the two arginine residues shows certain capability...
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Báo cáo khoa học: Characterization of a membrane-bound angiotensin-converting enzyme isoform in crayfish testis and evidence for its release into the seminal fluid ppt
... very faintstaining only (Fig. 4D). The thickness of the staining is the result of the morphology of spermatozoid in Astacus. Indeed, the spermatozoid is almost devoid ofcytoplasm, and the cell ... with two zinc-binding histidines (His343 and His347) was conserved in Asl-tACE and additional coordination was providedby the third zinc-binding ligand (Glu371), 24 aminoacid residues downstream, ... spermatogenesis cycle peryear, from spring until late summer. There are no externalsigns to indicate whether the animal is in active spermato-genesis or in a resting period and, within a tank, the...
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báo cáo hóa học:" Retinal pigment epithelial cells secrete neurotrophic factors and synthesize dopamine: possible contribution to therapeutic effects of RPE cell transplantation in Parkinson''''s disease" doc
... UK) and peroxidase-coupled avidin-biotin stainingkit (ABC kit, Vector Laboratories, UK) were used.For HE staining, the tissue sections were submerged into the hematoxylin solution (0.5% hematoxylin, ... developed and showed promising prospect in clinicaltreatment of PD, but the exact mechanism underlying this therapy is not fully elucidated. In the present study, we investigated whether the beneficial ... through the striatum containing transplants and mounted to gelatincoated slides. Adjacent sections were processed for hema-toxylin-eosin (HE) stain and immunohistochemistry. The sections were stained...
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Báo cáo hóa học: " Abnormal coactivation of knee and ankle extensors is related to changes in heteronymous spinal pathways after stroke" pot
... progressively increased to determine the thresholds of the H reflex and of the Mresponse (MT) for vastus lateralis. The intensity wasthen maintained at 2 ì MT of vastus lateralis for the rest of the ... comfortablysecured in sitting position with the chest, pelvis and the tested legbeing firmly anchored to the Biodex chair. A. For the kneeextension task, the input axis of the dynamometer was adjusted to align ... question then arises as to whether the abnor-mal coactivation of knee and ankle extensors in the paret ic leg is related to the malfunction of intersegmen-tal pathways linking quadriceps to soleus.This...
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Báo cáo hóa học: " Vaccinia virus lacking the deoxyuridine triphosphatase gene (F2L) replicates well in vitro and in vivo, but is hypersensitive to the antiviral drug " pot
... deamina-tion of cytosine and can result in A:T transition mutations in one of the nascent strands [1]. Minimizing the incorpo-ration of these bases and excising those that arise prevents the ... free-living organisms have mechanisms to minimize the incorporation of uracil in their genomes. These resi-dues in DNA can arise either through misincorporation ofdUTP by DNA polymerase or the ... contributed to the design of the experiments and analysis of the data. KAK contributed to the acquisition and interpretation of data. RWM contrib-uted to the conception of the studies and the criticalreview...
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Tìm thêm: xác định các mục tiêu của chương trình khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 sự cần thiết phải đầu tư xây dựng nhà máy chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25