báo cáo khoa học: " The evolutionary origins and significanc

báo cáo khoa học: " The evolutionary origins and significance of drug addiction" potx

... on the presence of the drug. With an absence of the drug, withdrawal symptoms are experienced as the brain attempts to deal with the chemical changes. There are believed to be evolutionary origins ... previously thought, but the chemical activity caused by the drug within the CNS is the unconditioned stimuli. The brain then becomes adapted to the chemical res...

Ngày tải lên : 11/08/2014, 20:20

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Báo cáo khoa học: The metabolic role and evolution of L-arabinitol 4-dehydrogenase of Hypocrea jecorina potx

... genes. On the other hand, the lack of growth of the wildtype strain on D -allitol and L -iditol may either be due to a lack of uptake of these hexitols, or due to alackoflad1 expression by these ... formation of heterologous proteins under the control signals of cellulase promoters [9,10]. The metabolism of D -galactose and its regulation is therefore of interest...

Ngày tải lên : 07/03/2014, 15:20

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Báo cáo khoa học: "THE IMPERFECTIVE PARADOX AND TRAJECTORY-OF-MOTION EVENTS *" doc

... consistent value of a cost variable and then finding consistent values for the rest of the variables. bar (assuming the bar is further east than the other landmarks), example (9) shows how the present ... the pos- sibility of having actual events standing in the part -of relation to hypothetical super-events. This treatment extends and refines those of Moens...

Ngày tải lên : 31/03/2014, 06:20

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báo cáo khoa học: " The intellectual structure and substance of the knowledge utilization field: A longitudinal author co-citation analysis, 1945 to 2004" potx

... intellectual center of their new fields. In other words, new fields branch off from the original field of innovation diffusion, and at the core of each of these new fields (with the exception of EBM), we ... context, and differences in the nature of the producers and users of the knowledge as well as the particular goals each holds within their context. In...

Ngày tải lên : 11/08/2014, 16:21

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Báo cáo khoa học: "SenseClusters: Unsupervised Clustering and Labeling of Similar Contexts" potx

... number of contexts associated with each. The next column indicates the percentage of the majority class (MAJ.) and count (N) of the total number of contexts for the names or newsgroups. The majority ... experiment. The results are reported in terms of the F-measure, which is the harmonic mean of precision and recall. The ﬁrst column in both tables indicates...

Ngày tải lên : 08/03/2014, 04:22

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Báo cáo khoa học: The evolutionary relationship between the duplicated copies of the zebraﬁsh fabp11 gene and the tetrapod FABP4, FABP5, FABP8 and FABP9 genes pptx

... by successive tandem duplications and divergence of a single ancestral gene, as has been suggested for the evolution of some of the globin gene clusters [28]. Last, the ancestral gene of fabp11 and the ... in the retina of developing embryos at 24 h postfertilization (hpf) in the pig- mented epithelium, starting in the proximal part of the retina. fabp11b trans...

Ngày tải lên : 30/03/2014, 04:20

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Tài liệu Báo cáo khoa học: Substrate speciﬁcity and inhibition of brassinin hydrolases, detoxifying enzymes from the plant pathogens Leptosphaeria maculans and Alternaria brassicicola ppt

... resulted in 55% and 51% loss of the initial activities of BHLmL2 and BHAb, respectively. These results strongly suggest that Ser is involved in the catalytic activity of BHLmL2 and BHAb and are consistent ... 97% inhibition of BHLmL2 and BHAb, respectively. The inﬂuence of pH on the activities of the BH enzymes was investigated in the pH range 6–11. The pH...

Ngày tải lên : 18/02/2014, 14:20

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Tài liệu Báo cáo khoa học: Identiﬁcation, sequencing, and localization of a new carbonic anhydrase transcript from the hydrothermal vent tubeworm Riftia pachyptila docx

... of the CA D. melanogaster sequences and, on the other hand, the other D. melanogaster sequences more closely related to the CAVI vertebrate isoforms (CAa, CAb and D. melanogaster-3) or to the ... ampliﬁcations of RpCAbr and RpCAtr with 18S ampliﬁcation. The number of cycles on the y-axis is the difference between the number of cycles required to amplify each t...

Ngày tải lên : 18/02/2014, 16:20

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Tài liệu Báo cáo khoa học: Unusual metal specificity and structure of the group I ribozyme fromChlamydomonas reinhardtii23S rRNA pptx

... the large P6 extension and the last three nucleotides (AU XG) of the intron. The sizes of the intron (InDG b ) and 5¢ exon (5E) are indicated. The arrow indicates cleavage of the pre-RNA at the ... 23S.5DG b pre-RNA, and the binding of a minimum of n Mg 2+ ions leads to formation of the active complex, whereas binding of a minimum of m Mn 2+ ions form...

Ngày tải lên : 19/02/2014, 07:20

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Tài liệu Báo cáo khoa học: The distinct nucleotide binding states of the transporter associated with antigen processing (TAP) are regulated by the nonhomologous C-terminal tails of TAP1 and TAP2 ppt

... activity of the TAP2iso product and TAP2DV might be due to the different length of the C-terminal truncations and the ability of the exon 12-encoded C-terminal tail to regulate the function of NBD2. ... b 11 -strand of the C-terminal tail of NBD2 is necessary and sufﬁcient to confer the different nucleotide binding and functional properties of SUR2A and...

Ngày tải lên : 20/02/2014, 02:21

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