Báo cáo khoa học: "Simultaneous Determination of Various Macrolides by Liquid Chromatography/Mass Spectrometry" pps

Báo cáo khoa học: Simultaneous improvement of catalytic activity and thermal stability of tyrosine phenol-lyase by directed evolution ppt

... mutation of Thr15 to Ala in the vicinity of the hydrophobic core induces a tighter binding of thecofactor in C. freundii TPL, thereby reducing thedecomposition rate of the cofactor by a Pictet–Spen-gler ... in200 mL of LB medium containing 100 lgÆmL)1 of ampicil-lin. The cells were then suspended in 5 mL of NaCl ⁄ Pi,mixed with an equal volume of Cellytic BÔ, treated for30 min with 20 lL of DNase ... based on the 4-aminoantipyrinmethod [28]. One unit of enzyme was deﬁned as the amount of enzyme able to catalyze the formation of 1 l mol of phenol in 1 min at 37 °C. The protein concentration...

Báo cáo khoa học: "Automatic Determination of Parts of Speech of English Words" docx

... DETERMINATION OF PARTS OF SPEECH 61 DETERMINATION OF PARTS OF SPEECH 63 TASK 2: TABULATION OF SPECIAL-PURPOSE WORDS WHICH ARE NOT COVERED BY RULES A, B, OR C For Task 2, a subset of ... a part of speech on the basis of the part -of- speech implications of the affixes and the length of the remaining kernel. An accuracy of 95 per cent is achieved from the point of view of inclusive ... is believed to be adequate to main- tain the goal of 95 per cent accuracy. DETERMINATION OF PARTS OF SPEECH 55 DETERMINATION OF PARTS OF SPEECH 65 [Mechanical Translation and Computational...

Báo cáo khoa học: Structural determination of the polar glycoglycerolipids from thermophilic bacteria Meiothermus taiwanensis pdf

... times of 3.0 ms per step of 1 m/ z unit. Fragment ionsformed by collision a ctivation of selected precursor ionswith nitrogen in the R F-only quadrupole collision ce ll, wereanalyzed by scanning ... and analyzed by aMALDI-TOF mass s pectrometer (MALDITM;Micromass,Manchester, UK). Mass spectra were acquired for the massrange of 600–2000 Da under a pulsed nitrogen laser of wavelength ... Zou5and Shih-Hsiung Wu11Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan;2Department of Chemistry and3Department of Life Scienceand Institute of Plant Biology, National Taiwan...

Báo cáo khoa học: " mechanical determination of the constituents of german substantive compounds" pot

... A number of SC are characterized by what I call an “X-factor.” It is this occurrence of X- factors which presents the main difficulty in the mechanization of the determination of the consti- ... forms of dual nationality which has been treated separately. The importance of the mechanization of this part of the identification process of MT lies in the fact that it solves the problem of ... order) of the second constituent (that is, the g of -geschmack and the i of -idyll) has been ig- nored by the matching mechanisms—that is, after the first matching step. The determination of Nach-...

Báo cáo khoa học: "AUTOMATED DETERMINATION OF SUBLANGUAGE" doc

... Growth in the size of the grammar as a fuaction of the size of thc text sample. X = the number of sentences (and sentence frag- ments) in the text sample; Y = the number of productions in ... the speed-up (by roughly a factor of 3) was approximately proportional to the reduction in the number of productions. In addition, the ~fyequcncy of bad parses decreased slightly (by <3%) ... quency of noun phrases with nouns as modifiers of other nouns: 0.20 and 0.32 for the two medical ~mples, versus 0.80 for the CASREPs. We reparsed some of the sentences from the first set of medical...

Tài liệu Báo cáo khoa học: Metabolic control of mitochondrial properties by adenine nucleotide translocator determines palmitoyl-CoA effects Implications for a mechanism linking obesity and type 2 diabetes pdf

... of oxidative phosphorylation not only by theANT but also by other components of oxidative phos-phorylation. Furthermore, we tested parts of the abovehypothesis by determining the effects of ... adversely affect cellular function by directeffects on a variety of enzymes and induction of apoptosis [4].Tight regulation of intracellular concentrations of free LCACs by acyl-CoA-binding protein ... established that the pri-mary cause of the effects of palmitoyl-CoA was inhibi-tion of the ANT. Assessment of the metabolic control of ﬂuxes and intermediate concentrations by the ANTthen revealed that...

Tài liệu Báo cáo khoa học: "Unsupervised Segmentation of Chinese Text by Use of Branching Entropy" pdf

... 0.6 0.7 0.8 0.9 1 10 100 1000 10000 100000 1e+06size(KB)recallprecision434Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435,Sydney, July 2006.c2006...

Báo cáo khoa học: Heterologous synthesis of cytochrome c¢ by Escherichia coli is not dependent on the System I cytochrome c biogenesis machinery ppt

... synthesis of PHCP by E. coliThe E. coli System I cytochrome c biogenesis machin-ery, consisting of the Dsb and Ccm proteins, is respon-sible for the synthesis of class I cytochromes c evenfrom various ... Determina-tion of the secondary structures of proteins by circulardichroism and optical rotatory dispersion. Biochemistry11, 4120–4131.16 Ren Z, Meyer T & McRee DE (1993) Atomic structure of a cytochrome ... molecular weight of thePHCP protein on the gel was 13 kDa, which was closeto that of other cytochromes c¢ isolated from various bacteria. The N-terminal amino acid sequence of PHCP was determined...

Báo cáo khoa học: Increased expression of c-Fos by extracellular signal-regulated kinase activation under sustained oxidative stress elicits BimEL upregulation and hepatocyte apoptosis pot

... increased levels of c-Fos and basallevels of c-Jun. This idea is supported by the results of the ChIP assay, which indicated that both c-Fos andFig. 2. Increases in the expression of total and ... wasaccompanied by increased expression of BimEL, following activation of extracellular signal-regulated kinase. The aim of this study was to charac-terize the mechanism underlying hepatocyte apoptosis by ... The data obtained from two groups werecompared by the use of Student’s t-test, and data obtainedY. Ishihara et al. Regulation of BimEL expression by c-FosFEBS Journal 278 (2011) 1873–1881 ª 2011...

Báo cáo khoa học: Dual modulation of prothrombin activation by the cyclopentapeptide plactin pptx

... syn-thesized by mixing 1 mL of plactin-14 (1 mgÆmL)1inwater), 1 mL of dansyl chloride (4 mgÆ mL)1in acetone)and 90 mg of NaCO3overnight at ambient temperature.Plactin-14–Sepharose was prepared by ... 3.Partial puriﬁcation of plactin cofactor frombovine plasmaCitrated bovine platelet-poor plasma (490 mL) was frac-tionated using the method described by Cohn et al. [25].Most of the cofactor activity ... presence of aprotinin, an inhibitor of plasmin. Line indicatesthe average of duplicate determinations. (B) U937 cells were incu-bated with125I-labeled scu-PA in the absence or presence of 50...

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