Activity ratios

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  • Optimal conditions for the extraction of black fungus polysaccharides were 350 W, 5, 35 min and 90 ◦C, for ultrasonic power, ratio of water to sample, extraction time and extraction temperature, respectively. Gas chromatography (GC) analysis showed that black fungus polysaccharides contained glucose, xylose, mannose and ribose. Their molar percentages were 6.8%, 34.2%, 50.7% and 8.9%, respectively. FT-IR and NMR analysis showed typical chemical structure of black fungus polysaccharides.

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  • To obtain the basic information on human exposure to mercury (Hg) due to gold mining activities in North of Viet Nam, total mercury was determined for human hair and blood samples collected from population living in gold mining area. The results indicate that the mercury concentrations measured in 98 blood samples with ranging from 1.128 to 22.751 ppb and 65 hair samples with ranging from 0.379 to 2.440 ppm, the good correlation between concentration of mercury in hair and blood samples was found in people and the ratios of hair Hg to blood hair were 195 for males and 142 for females

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  • Factor VII-activating protease (FSAP) circulates as an inactive zymogen in the plasma. FSAP also regulates fibrinolysis by activating pro-urokinase or cellular activation via cleavage of platelet-derived growth factor BB (PDGF-BB). As the Marburg I polymorphism of FSAP, with reduced enzymatic activity, is a risk factor for atherosclerosis and liver fibrosis, the regulation of FSAP activity is of major importance.

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  • The sequencing of the genome ofRalstonia solanacearum[Salanoubat M, Genin S, Artiguenave F,et al.(2002) Nature415, 497–502] revealed several genes that putatively code for polyphenol oxidases (PPOs). This soil-borne pathogenic bacterium withers a wide range of plants. We detected the expression of two PPO genes (accession numbers NP_518458 and NP_519622) with high similarity to tyrosinases, both containing the six conserved histidines required to bind the pair of type-3 copper ions at the active site....

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  • In this study, nitrogen was used as a dopant to defect into the TiO2 lattice making contributions to the visible light absorption of nitrogen-doped TiO2. N-TiO2 material was prepared from K2TiF6 and NH3 as precursors. The N-TiO2 photocatalyst was prepared under the condition of 1 M NH3 solution, 14 % N/TiO2 mass ratio and the calcination temperature of TiO(OH)2 was 600 oC for 5 hours. The obtained results indicated that the simultaneous existence of both anatase and rutile phase of pattern of N-TiO2 and the average particle size was approximately 30 nm.

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  • The TiO2 nanotubes were fabricated by the hydrothermal method. Then, Ag nanoparticles with the varying ratio were attached on the TiO2 nanotubes by photoreduction. The characteristics of structure, morphology, chemical composition and of TiO2 nanotubes modified Ag (Ag-TNTs) was investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and the absorption spectral of Methylene blue (MB) solution. The results showed that Ag-TNTs have fairly uniform length with Ag particles immobilized on the tube.

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  • In this work we present the yield ratios of the 179m,gW isomeric pair produced in the photonuclear reactions natW(γ,xn)179m,gW with bremsstrahlung end-point energies of 50-, 55-, 60-, and 65-MeV. The measurements were carried out by the induced activity method in combination with direct γ-ray spectrometry. The measured activities were corrected for overlapping γ-ray peaks, self-absorption of low energy γ-rays and true coincidence-summing effects. The present results are measured for the first time with bremsstrahlung end-point energies beyond the giant dipole resonance region.

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  • The yield ratio of the high-spin state of 122mSb (8−) and the low-spin state of 122gSb (2−) formed via the 123Sb(γ,n)122m,g Sb reaction has been measured as a function of the bremsstrahlung end-point energy in the range of 40-MeV to 60-MeV. Use was made of the activation technique in combination with high-resolution γ-ray spectrometry. The isomeric yield ratios for the 123Sb(γ,n)122m,g Sb reaction measured at 40-, 45-, 50-, 55-, and 60-MeV bremsstrahlung are 0.341 ± 0.022, 0.362 ± 0.020, 0.374 ± 0.021, 0.371 ± 0.021, and 0.367 ± 0.022. According to our

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  • Study on preparation of activated carbons by chemical activation with NaOH using the impregnatio ratio of 3:1 (NaOH:char) from Macadamia nut shell in terms on temperature and time. The research result showed that Methylene Blue (MB) absorption at optimum temperature and time of 300oC and 90 minutes was 205,68 mg and the removal efficiency was 97,59% corresponding to the color reduction from 349,67 Pt-Co to 8,4 Pt-Co.

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  • This research investigated the antioxidant activity of proteolysate from Acetes japonicus. Firstly, chemical composition of the Acetes was analyzed. Then, the effect of Acetes : water ratio on protein recovery yield and the effect of the enzyme type, pH, temperature, enzyme to substrate (E:S) ratio and hydrolysis time on the antioxidant potential of the proteolysate were examined.

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  • In all fields of inquiry, whether financial, scientific, or any other, there is danger of not seeing the woods for the trees. Nowhere is this danger greater than in the analysis of assets and liabilities as well as in cash management, in a leveraged financial environment with derivative instruments that change from assets to liabilities, and vice versa, depending on their fair market value.

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  • What can’t be measured can’t be improved. Even though Supply Chain Management is the most talked about topic today, currently no tool is available to measure any manufacturing organizations’ supply chain efficiency. Unlike productivity and or quality measurement, where the parameter can be measured objectively and expressed in unit or ratio, supply chain measurement is currently more of a qualitative statement.

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  • Mutual funds charge two kinds of fees: expenses and loads. Expenses comprise the management fee (typically a fixed percentage of assets under management) and other recurring operating costs—such as custodian, administration, accounting, registration, and transfer agent fees. Rather than charging explicit fees for these expenses, funds deduct them on a daily basis from the fund's net assets. Expenses are expressed as a percentage of assets under management (the expense ratio). Loads are one-time fees used to compensate distributors.

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  • What are conditions like in primary schools? How many hours, if any, of English language learning do students receive before they enter secondary school? Is primary education free? What's the student-teacher ratio? Are schools in rural areas different from schools in towns? Are there textbooks? Who wrote them? When? Do parents pay for them? Or are they issued free of charge by the government? What percentage of the population completes primary school? What's the ratio of girls to boys? Is there a national primary leaving examination? What happens to those who don't get into s...

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  • (Glossary) A Activity Ratios measures used to assess the efficiency of a firm’s use of assets; e.g., sales divided by assets. Area Structure an organizational form that divides and organizes the firm’s activities according to where operations and people are located (also known as place structures, geographic divisions). C CAD/CAM Network the linking up of multiple design and manufacturing activities (both within and across) firms through the use of complex networks of computers. CAD stands for computer-assisted design; CAM stands for computer-assisted manufacturing.

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  • We ¯nd that when the hypothetical benchmarks are recognized as being unavailable for investment, there need not exist close substitutes for them in the universe of mutual funds. For an investor who believes completely in the accuracy of the Fama-French model and precludes managerial skill, the perceived maximum Sharpe ratio is only 66 percent of what could be achieved by direct investment in that model's benchmarks. For a believer in the Carhart four-factor model, the corresponding value is 54 percent.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Voice activity detection based on conjugate subspace matching pursuit and likelihood ratio test

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  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: Voice activity detection based on conjugate subspace matching pursuit and likelihood ratio test

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Reliable likelihood ratios for statistical modelbased voice activity detector with low false-alarm rate

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  • As an adaptation process to the growth retardation provoked by the presence of nonlethal concentrations of ergosterol biosynthesis inhibitors, Ustilago maydis alters the ratio of linoleic to oleic acid bound to plasma membrane ´ complex lipids [Hernandez, A., Cooke, D.T., Lewis, M. & Clarkson, D.T. (1997) Microbiology 143, 3165–3174]. This alteration increases plasma membrane H+-ATPase hydrolytic activity.

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