δ 15 n composition recorded in bulk sedimentary rocks
Báo cáo lâm nghiệp: "C and 15 N isotopic fractionation in trees, soils and fungi in a natural forest stand and a Norway spruce plantation" pps
... farmland, ammonium volatilization may induce a large increase in δ1 5 N of the remaining nitrogen This process cannot be involved in this natural site Denitrification, which occurs in anaerobic conditions, ... horizon of the two stands In both stands A1 δ1 5 N became positive (1.4% in the natural stand and 0.6% in spruce stand) δ1 5 N continued to increase in the soil according to the depth, without any ... were divided into seven groups: fungi living on AI horizon (ASF), fungi living on decaying needles (NSF), fungi living on decaying strobiles (SSF), litter decaying fungi living on F and H layers...
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Báo cáo lâm nghiệp: "partitioning and production of 15 N-labelled litter in beech trees" pps
... ascertain i) that N originating from 15 leaf N labelling was properly distributed into N 15 Little is known on the dynamics of leaching, accumulation and release of N in decomposing forest litter in ... amino acids 5-8 % of the applied 15 N was found in fallen leaves, i.e litterfall N (table I) In these leaves, the 15 enrichment of total N and insoluble N (i.e protein and lignin N) was identical ... glutamine concentrations after urea application indicate a rapid assimilation of NH produced by urea catabolism + 3.2 N 15 incorporation in leaves N 15 concentration in leaves sharply increased...
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Feeding ecology of the sandbar shark in south carolina estuaries revealed through δ13 c and δ15 n stable isotope analysis
... 2006) and Virginia (Ellis and Musick 2007) Caution should be utilized interpreting these data due to concerns about maternal contribution in uencing the age0 values and offshore feeding in uencing ... the presence of an ontogenetic diet shift between age-0 and juvenile Sandbar Sharks in South Carolina estuarine waters, indicated by differences in average δ1 5N and δ1 3C signatures between these ... larger ontogenetic difference in δ1 5N than what we observed in Sandbar Sharks in this study because of a larger transition within the food chain The change in δ1 3C that Wells et al (2008) found (∼1‰)...
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Những vấn đề của sự biến đổi xã hội ở Việt Nam sau 15 n¨m đổi mới
... nhoỏng Lm nn cho nhp sng sụi ng ú l nhp tng trng tng sn phm nc l khong 9% Ngay c nhng nm gn õy, thi n tai dn dp p xung hu nh khp c ba ca t nc nhng tc tng trng tng sn phm nc t tr n 8%.Trong nm ... thụng tin v tham nhng c xem nh quc nn vt l n nhanh chúng, cụng n vic lm cho ngi lao ng ngy cng khú kim hn, t nn xó hi lan rng khp ni khụng tr mt õu t thnh th n nụng th n Vic lm i vi nhng ni n, ... chiu hng rt ỏng chỳ ý H thớch nghi nhanh vi c ch mi, nhp sng mi õy ú, khụng trỏnh nhng cc oan, n ng ni, nhng nh n chung thỡ tớnh nng ng ca lp tr ang lm nn cho nhp sng sụi ng ca xó hi Tớnh nng ng...
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Topological analysis in bulk power system reliability evaluation
... Annualized System Indces (SaskPower) 0.000873 A B C D E Gen, Line, Gen, Line, Gen + Line Contingencies of A + Gen Contingencies of B + Gen Contingencies of C + Line, Gen + I Line, Line + Gen ... requirement, however, is the calculation of boundary crossing transitions An efficient calculation of upper and lower frequency bounds is presented in [6,7] using sorting of contingencies and using binary ... representation, the incremental transition rate is simplified to: Rearranging and canceling terms results in the same expression obtained by inspection: in a () = x which is the the true index obtained...
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Tài liệu Báo cáo khoa học: Purification and characterization of glutamate N-acetyltransferase involved in citrulline accumulation in wild watermelon doc
... [15, 30,31], and ornithine is exported to the cytosol to be converted into citrulline and arginine [31,32] In plants, information on the localization of citrulline and arginine biosynthetic enzymes ... GAT, glutamate N- acetyltransferase; AOD, N- acetylornithine deacetylase; OCT, ornithine carbamoyltransferase; ASS, argininosuccinate synthase and ASL, argininosuccinate lyase by arginine [16,17] As ... then converted into N- acetylornithine by three consecutive enzymatic steps, namely, phosphorylation, reduction, and transamination (Fig 1) In the fifth step, N- acetylornithine is converted into...
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Báo cáo khoa học: 15 N-Labelled proteins by cell-free protein synthesis Strategies for high-throughput NMR studies of proteins and protein–ligand complexes doc
... this particular in vivo labelling scheme was designed for ‘[1 5N] -unlabelling’, where the protein was produced on a medium containing inexpensive 15 NH4Cl and the [1 5N] -labelling of selected residues ... therefore not interfere with the protein fingerprint represented by the amide cross-peaks in the [1 5N] -HSQC spectrum Remaining free [1 5N] -amino acids are equally unproblematic because the amino protons ... cross-peak in the [1 5N] -HSQC spectrum of a protein can be attributed a priori to one of the 19 nonproline amino acid types (Proline residues not contain backbone amide protons.) Bacterial growth and in...
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Báo cáo khoa học: Characterization of rat cathepsin E and mutants with changed active-site residues and lacking propeptides and N-glycosylation, expressed in human embryonic kidney 293T cells ppt
... redistribution of Golgi resident proteins into the ER [18] The strong inhibition of the processing of pro-cathepsin E into the mature enzyme by brefeldin A indicates that the processing and maturation of ... F, Cornaggia M, Capella C, et al (1993) Cathepsin E in antigen-presenting Langerhans and interdigitating reticulum cells Its possible role in antigen processing Eur J Histochem 37, 19–26 Finzi ... cathepsin E, the transfected cells showed mainly punctate staining and partly reticular staining over the whole cytoplasm, consistent with staining of the lysosome-associated membrane protein LAMP-1...
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Reductive Cleavage of N-O Bonds in Hydroxylamines and Hydroxamic Acid Derivatives Using Samarium Diiodide pot
... nitrogen in an uncommon oxidation state has been examined) 7"18 Treatment of these N- O bond containing compounds with SmI2 resulted in good to excellent yields of the products in which nitrogen has ... accomplished by RPLC, using a mm disk, eluting with a solvent gradient of 25% acetone/hexanes through 50% acetone/hexanes The product containing fractions were combined and concentrated in vacuo to give ... flash column chromatography using a (4x24) em column, eluting with a gradient solvent of hexanes through 10% EtOAc/hexanes The product containing fractions were combined and concentrated in vacuo...
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Báo cáo khoa học: Mycobacterium tuberculosis ClpC1 Characterization and role of the N-terminal domain in its function ppt
... denaturation Deletion of N- terminal conserved repeat I along with the intervening amino acids linking it to N- terminal conserved repeat II did not affect the conformation of ClpC1 and the resultant protein, ... incubated on ice with intermittent shaking for 10 min, and centrifuged at °C at 15 000 g for 15 Radioactivity in the supernatant was measured in a liquid scintillation counter, and the concentration ... the N- terminal repeat I and the intervening sequence between repeats I and II deleted, and the N- terminal repeat II forms its N- terminus (Fig 2B) The deletion mutants were also expressed in E...
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Báo cáo khoa học: Identification and structural characterization of a sialylated lacto-N-neotetraose structure in the lipopolysaccharide of Haemophilus influenzae pptx
... forward linear prediction in t1, unshifted Gaussian window functions, and zero filling to 1024*1024 complex points for a resolution of 2.9 Hz per point in both dimensions The one-dimensional NOESY ... SiallNnT-containing glycoforms contain two PEtn residues In the inner core of H in uenzae LPS, one PEtn residue is stoichiometrically present at the 6-position of the Hep II residue, and a second ... using 30 mM morpholine in deionized water (negative ion mode), pH 9.0, containing 5% methanol and 15 mM ammonium acetate/ammonium hydroxide in deionized water (positive ion mode), pH 9.0, containing...
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Báo cáo khoa học: Functional role of Bb-chain N-terminal fragment in the fibrin polymerization process pdf
... are involved in protein–protein interactions [17] Functional role of Bb-chain N- terminal fragment Three mAbs to t-NDSK that inhibit fibrin polymerization are described in this article The inhibitory ... from human fibrin with two different bound 21 ligands Biochemistry 37, 8637–8642 Mihalyi E (1988) Clotting of bovine fibrinogen Calcium binding to fibrin during clotting and its dependence on release ... of bovine and human fibrinogen and fibrin after negative staining Proc Natl Acad Sci USA 80, 157 0 157 3 Varetskaya TV (1960) Microheterogeneity of fibrinogen Cryofibrinogen Ukr Biokhim Zhurn 32, 13–24...
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Báo cáo khóa học: The role of N-linked glycosylation in the protection of human and bovine lactoferrin against tryptic proteolysis pdf
... natural hLF and rhLFcDNA by in vitro and in vivo antigenicity, ironbinding and release and binding to several ligands [21] The only indication for a difference in conformation between rhLFcDNA ... 484–487 23 Brines, R.D & Brock, J.H (1983) The effect of trypsin and chymotrypsin on the in vitro antimicrobial and iron-binding properties of lactoferrin in human milk and bovine colostrum Unusual ... in oral applications of lactoferrins in human healthcare Acknowledgements We thank Marianne Kroos (Erasmus University, Rotterdam, the Netherlands) for performing the N- terminal protein sequencing...
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cho s.n. casimir force in non-planar geometric configurations (phd thesis, va, 2004)(114s)
... r, nn ki,l nn nl ki ,n nn r, nn ki ,n nl el , where it is understood that n is already normalized and Einstein summation convention is applied to the index n The second reection point R is found ... N, 1 = ri sin N cos N , N, 2 = ri sin N sin N , R N (ri , N , N ) = N, i (ri , N , N ) ei , i= (3.11) i=1 N, 3 = ri cos N , where the spherical angles N and N are dened in equations (A .158 ), ... reections are in order If the initial direction of the incoming wave vector, k , is given, the internal reections can be either single or multiple depending upon the location of the entry point in...
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báo cáo hóa học:" Monitoring trends in HIV prevalence among young people, aged 15 to 24 years, in Manicaland, Zimbabwe" pdf
... Accordingly, changes in prevalence over time among young people should signal underlying changes in incidence Changes in incidence are useful when gauging the effectiveness of prevention and treatment ... patterns of change in HIV prevalence seen in the general population and ANC data include changes in the profile of women accessing ANC services However, we observed only minor increases in ANC uptake ... individual participation could span rounds In the parallel ANC surveillance, all women seeking ANC at participating clinics (29 in all three rounds and seven in one or two rounds only) during...
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Báo cáo lâm nghiệp: "Sulphur and nitrogen concentrations and fluxes in bulk precipitation and throughfall in the mountain and highland spruce stands in the Czech Republic" docx
... in ammonium nitrogen and nitrate nitrogen concentrations The concentrations of ammonium nitrogen were significantly higher at Rájec than at Bílý Kříž both in open area bulk precipitation and in ... toward new monitoring concept Environmental Pollution, 130: 113–126 Piirainen S., Finer L., Starr M (1998): Canopy and soil retention of nitrogen deposition in a mixed boreal forest in Eastern Finland ... mountainous catchments of the Czech Republic In: Proceedings of the International Conference on Interdisciplinary Approaches in Small Catchment Hydrology: Monitoring and Research Demänovská dolina,...
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Báo cáo toán học: "On the Tur´n Properties of Infinite Graphs a" pptx
... with an outline of the proof First, we redefine the sequence B by adding k to all its terms, i.e., bn := bn + k For an even integer k we construct a new sequence C = {cn }∞ setting c2l−1 = al and ... 0.255, as l goes to in nity For any l, there are integers m and i such that ni (m) ≤ l < ni+1 (m) Since SA (k, l) is increasing in l, we thus have SA (k, l) SA (k, ni (m)) ≥ , l (ni+1 (m))2 (4) SB ... our main “tool” was the fact that for any l there are integers m ∈ N and i ∈ {0, , k − 1} such that ni (m) ≤ l < ni+1 (m), and consequently that (4) and (5) hold In order to strengthen inequalities...
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Báo cáo lâm nghiệp: "Solar activity, global surface air temperature anomaly and pacific decadal oscillation recorded in urban tree rings" pot
... located in a suburb (0.2265) [8, 9] and the Qianshan Mountains, located in natural sites (72 km to Shenyang, 0.2181) [8] Qianshan Mountains Chinese pines and Fuling Mausoleum Chinese pines also ... the continental climate is dominant Our research on Chinese pines in Fuling [8, 9] and Qianshan [8] also confirms the pattern above Furthermore, the relationship between PDO and tree rings in warm ... studies on urban trees are becoming increasingly important [8,9,31,55,65] In China, tree ring chronologies studies started in the 1930s [34, 64] Since then, research using tree rings has been conducted...
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Báo cáo y học: "Interleukin-15 and interferon-γ participate in the cross-talk between natural killer and monocytic cells required for tumour necrosis factor production" docx
... cytokines in cell-free supernatant Human TNF concentrations in supernatants were determined by an enzyme immunoassay (EIA) In brief, 96-well high-binding EIA plates (Costar) were coated overnight ... pathogenic mechanisms underlying RA Indeed, the importance of these cell-cell interactions in the synthesis and release of pro-inflammatory cytokines and metalloproteinases has been highlighted in ... the involvement of functional relevant molecules Dickinson (Mountain View, CA, USA) Anti-human NKG2D (MAB139), blocking anti-human IL -15 (MAB647), anti-human CD244 (2B4; MAB1039) and the negative...
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Tìm thêm: xác định các mục tiêu của chương trình 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 khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu 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 dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ chỉ tiêu chất lượng 9 tr 25