Preparation of chitosan magnetite composite beads and their application for removal of Pb(II) and Ni(II) from aqueous solution

... assistance of externalmagnets. The synthetic procedure of composite beads was schemat-ically presented in Fig. 6.3.2. Application of chitosan/ magnetite composite beads for removal Ni(II) and Pb(II) ... concentrations of metal ions in aqueous solution respectively.3. Results and discussion3.1. Characterization of chitosan/ magnetite composite beads 3.1.1. Morphology and particles of chitosan/ magnetite composite ... magneticadsorbents for the adsorption of Ni(II) and Pb(II). The adsorptionbehaviors of Pb(II) and Ni(II) ions were investigated in aqueous solutions at pH 4–6 and at room temperature as follows: 0.01 g chitosan/ magnetite...

Báo cáo khoa học: "Self-Organizing Markov Models and Their Application to Part-of-Speech Tagging" potx

... prob-lems of ﬁnding an optimal valuation for randomprocesses. For example, for a given word se-quence, part -of- speech (POS) tagging involves ﬁnd-ing an optimal sequence of syntactic classes, and ... VFigure 6: Basic statistics of corporaSelf-Organizing Markov Models and Their Application to Part -of- Speech TaggingJin-Dong KimDept. of Computer ScienceUniversity of Tokyojdkim@is.s.u-tokyo.ac.jpHae-Chang ... implementa-tions of Markov models and additionally the perfor-mance of T3 is shown.Our implementation of the second-order hid-den Markov model (HMM-P2) achieved a slightlyworse performance than...

Biochemical characterization of thermophilic lignocellulose degrading enzymes and their potential for biomass bioprocessing

... paper), BWX and PWSD. The enzyme kinetic studies for cellulase and xylanase (Km and Vmax) were performed with 1-10 mg/ml of CMC and BWX, respectively [35]. The crude cellulase and xylanase ... isolation and exploitation of novel cellulases and xylanases to help overcome these challenges. Reports are available in literature on the use of thermophilic cultures for production of ethanol from ... crude enzyme from TMC was active in a broad temperature range (from 40 to 80ºC) with a temperature optimum of 600C, for cellulase, and 700C, for xylanase (Figure 3). Between 50 and 700C,...

Tài liệu Báo cáo khoa học: Identiﬁcation of ATP-NADH kinase isozymes and their contribution to supply of NADP(H) in Saccharomyces cerevisiae docx

... respectively. Km and Vmax for NAD and NADH of Pos5p have not been reported [2,3].Constructions of double and triple mutants for UTR1, YEF1 and POS5To examine the roles of Yef1p, Utr1p and Pos5p, ... regulation of Yef1p and Utr1p by NADPH, NADH and NADP (Table 2) [1], and the different transcriptional patterns and protein–protein interactions of Yef1p, Utr1p and Pos5p [25–27] may be indicative of ... 2005 FEBS 3345 and that of Utr1p was 3.9 mm; this was similar to and higher than the Kmvalue of the NAD of Yef1p(1.9 mm) and Utr1p (0.5 mm) [1], respectively. Vmax for the NADH of Yef1p was...

ON THE TRANSFORMATION PROCESSES OF THE GLOBAL PULP AND PAPER INDUSTRY AND THEIR IMPLICATIONS FOR CORPORATE STRATEGIES – A European perspective pot

... Mr Juhani Hacklin from Sappi Europe and Mr Jarmo Salonen from M-real for their comments. And finally, I am deeply grateful for the patience and support of my family for their constant encouragement ... School of Science and Technology (Espoo,Finland) on the 3 of November, 2010, at 12 noon.rdON THE TRANSFORMATION PROCESSES OF THE GLOBALPULP AND PAPER INDUSTRY AND THEIR IMPLICATIONS FOR CORPORATE ... Analysis of the profitability of the biggest pulp and paper companies of the world and the main participants of the paper value chain of selected pulp and paper firms. This is intended for answering...

facile synthesis of porous a - fe2o3 nanorods and their application in ethanol sensors

... special equipment and high temperatures, the methodsemploying templates or substrates often suffer from disadvan-tages related to the high cost and the removal of impurities, and the hydrothermal ... 40 kV and 100 mA.Diffraction peaks of crystalline phases were compared with those of standard compounds reported in the JCPDS data ﬁle.Transmission electron microscopy (TEM) and high-resolutiontransmission ... morphologies of the as-prepared R-FeOOH and R-Fe2O3nanorods were further investigated by TEM and HRTEM. Figure3a and b shows the representative TEM and HRTEM micro-graphs of the as-prepared...

Báo cáo khoa học: Expressed as the sole Hsp90 of yeast, the a and b isoforms of human Hsp90 differ with regard to their capacities for activation of certain client proteins, whereas only Hsp90b generates sensitivity to the Hsp90 inhibitor radicicol pdf

... ª 2007 FEBS 4461Expressed as the sole Hsp90 of yeast, the a and b isoforms of human Hsp90 differ with regard to their capacities for activation of certain client proteins, whereas only Hsp90bgenerates ... chaperone required for theactivity of many of the most important regulatory proteins of eukaryoticcells (the Hsp90 ‘clients’). Vertebrates have two isoforms of cytosolicHsp90, Hsp90a and Hsp90b. ... galactose plates. (B) Analysis of the levels of proteintyrosine phosphorylation before (–) or 1 h after (+) transfer of thesePP30[hHsp90a] and PP30[hHsp90b] transformants from glucose togalactose...

Báo cáo khoa học: Molecular dissection of the biosynthetic relationship between phthiocerol and phthiodiolone dimycocerosates and their critical role in the virulence and permeability of Mycobacterium tuberculosis doc

... pathways of DIMs and PGLs. Theseefforts have led to the identiﬁcation of more than 20proteins required either for the formation or for thetranslocation of these compounds [7]. Remarkably,most of ... electrotransformation, and tranformants were selected on7H11 agar plates supplemented with OADC, Km and Hyg.Extraction and puriﬁcation of DIMs and PGLs For each strain, bacterial cells were harvested from ... question of the function of the two related molecules DIM A and DIM B. According to the accepted model of DIM and PGL biosynthesis [17], DIM A and PGL-tb are expec-ted to be derived from DIM B and...

Báo cáo khoa học: Subcellular localization of yeast Sec14 homologues and their involvement in regulation of phospholipid turnover pptx

... 3145nucleotides upstream of the STOP codon of the ORF of interestandonthe3¢ end, 65–70 nucleotides of the genomicregion downstream of the ORF of interest. Transformantswere recovered based on their geneticine ... secretion of GroPCho,overproduction of Sfh2p and Sfh4p signiﬁcantly decreasedthe release of GroPCho into the medium. As phospholipaseB1 (Plb1p) is mainly responsible for the cleavage of PtdCho and ... the formation of GroPCho [42], the amount of GroPCho released into the medium represents the rate of Plb1p mediated turnover of PtdCho. Thus, Sfh2p, Sfh4p and Sec14p appear to be inhibitors of...

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