Báo cáo khoa học: "characterization of phosphorus fractions in natural and fertilized forest soils" potx

... forms of P in non -fertilized and P -fertilized soils (figure 1). As can be seen in table IV and table V, in FG and VR soils, the concentrations of P i forms in fertilized soils were lower than in ... diester-P in the clay and silt frac- tions from mineralization and explain the higher diester proportion observed in VR and NF soils than in SM and FG (tab...

Ngày tải lên: 08/08/2014, 14:21

... Tandon, A., Fraser, P.E. & St George-Hyslop, P. (2003) APH-1 interacts with mature and immature forms of presenilins and nicastrin and may play a role in maturation of presenilin-nicastrin ... heterodimers of N-terminal fragments (NTF) and C-terminal fragments (CTF) [7]. Many binding partners for the PS proteins have been identified including substrates and the catenins (...

Ngày tải lên: 16/03/2014, 16:20

... Protein Engineering Network of Centers of Excellence of Canada, the Natural Sciences and Engineering Research Council of Canada, the Swiss National Science Foundation, the Deutsche Forschungsgemeinschaft ... nm using a UV trans- illuminator. Nucleotide sequences of inserts were deter- mined by primer walking and confirmed by sequencing the complementary strand. The nucleotide s...

Ngày tải lên: 30/03/2014, 10:20

... the C-terminal tail and the binding of H1.4 to chromatin, as arginine offers additional hydrogen-bonding abilities to DNA as compared to lysine. Lysine 173 in H1.4 is situated in an SPKK motif, one of the ... is believed to be involved in positioning of the glo- bular domain on the nucleosome [32]. The N- and C-terminal tails of histone H1 adopt a random coil in solution [...

Ngày tải lên: 30/03/2014, 20:20

... infection is predominant in the developing world, and low socio-economic status is associated with increased prevalence of the infection [27]. Fecal contamination of common sources including ... early childhood in humans, specifically with epidemiologic vomiting and childhood overcrowding [2,23]. Moreover, since infection is predominant in developing countries and among...

Ngày tải lên: 07/08/2014, 23:22

... vertical profiles of unintercepted direct and diffuse radiation, and the spatial variability of the fluxes within and between tree crowns are examined. In the case of a homogeneous ... increases to 61 % in the case of a random distribution. In a homogeneous canopy, needle clumping in shoots induces an LAI underestimation of 36 %,...

Ngày tải lên: 09/08/2014, 04:20

... activator of nuclear factor kappa B ligand) are crucial mediators in this IL- 7-driven osteoclast formation [7]. Interestingly, in the study of Long and colleagues, TNFα was not tested as an inducer of chondrocyte ... IL-7/IL-7R pathway is independent from and additive with a TNFα-driven pathway. This is supported by recent findings demonstrating TNFα-independent IL-7-driven inf...

Ngày tải lên: 09/08/2014, 10:23

... sine function was applied in both dimensions of the time domain before Fourier transformation. Integration of 1D and 2D signals was performed using 1D winnmr and 2D winnmr software (Bruker, AG, Darmstadt, ... reported. 1D and 2D data were in good agreement, although the starting intensity values and values at the minimum were different, reflecting different pools of ML inside...

Ngày tải lên: 18/02/2014, 13:20

... transcripts during development and in adult tissues To gain insights into possible physiological functions of Cg-Clp2, determination of its tissue distribution and temporal pattern of expression during ... findings argue for an early evolutionary origin and a high con- servation of this class of proteins at both the structural and functional levels. Given the multiplicity...

Ngày tải lên: 19/02/2014, 00:20

... indicate intron 6 of 75 bp in fragments B and C, 3¢ portion of 35 bp in intron 5 in fragments C and D, and 3¢ portion of 25 bp in intron 6 in fragments F and I. The number at the right of each RT-PCR ... contain the entire coding region. Thus, use of alternative promoters in DNASE1 results in no generation of protein isoforms. The 5¢-UTR of eukaryotic mRNA...

Ngày tải lên: 19/02/2014, 06:20