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amounts of reagents and organic solvents, reducing the use of toxic and/or hazardous chemicals, as compared to currently used methodologies. The method was used to determine the level of endogenous shikimic acid in several species of Brachiaria and sugarcane (Saccharum officinarum) and on B. decumbens and soybean (Glycine max) after treatment with glyphosate. The method was sensitive, rapid and reliable in all cases. Keywords: glyphosate, green chemistry, herbicide, HPLC. RESUMO - Um…

Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo. wunsch@usp.br Gilka Jorge Figaro Gattás 1 Marco Segre 1 Victor Wünsch Filho 2 A b s t r a ct Thi s p a p e r p r o v i d e s a d i s cus s i on about the increasing development of genetics and mo l e cul a r b i oma r k e r s t e chno l o g i e s and consequent impact on practices of occupational health. Genetic analysis could be in specific populations at occupational, pharmacological or…

SCHEMATIC: ASSUMPTIONS: (1) One-dimensional conduction in the x-direction, (2) Steady-state conditions, (3) Constant properties. ANALYSIS: The rate equation for conduction through the wall is given by Fourier’s law, q cond = q x = q ′′ ⋅ A = -k x T −T dT ⋅ A = kA 1 2 . dx L Solving for T2 gives T2 = T1 − q cond L . kA Substituting numerical values, find T2 = 415 C - 3000W × 0.025m 0.2W / m ⋅ K × 10m2 T2 = 415 C - 37.5 C T2 = 378 C. COMMENTS:…

was originally published online as an accepted preprint. The ‘‘Published Online’’date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com INTRODUCTION T C V 2007 Wiley Periodicals, Inc. he alkaloid piperine (1-piperoyl piperidine) is the major bite factor of the spice black pepper (Piper nigrum), which is widely used in foods (Figure 1). Piperine has been endowed with several…

Wiley & Sons, Inc. Materials Science and Engineering An Introduction William D. Callister, Jr. Department of Metallurgical Engineering The University of Utah with special contributions by David G. Rethwisch The University of Iowa S E V E N T H E D I T I O N Front Cover: A unit cell for diamond (blue-gray spheres represent carbon atoms), which is positioned above the temperature-versus-logarithm pressure phase diagram for carbon; highlighted in blue is the region for which…

corte máxima na mola pode ser calculada pela sobreposição dos efeitos de corte directo e torção, obtendo-se τ max = ± Td 2 F + J A A tensão de corte máxima ocorre na face interior do enrolamento (ver figura 3 seguinte). obtém-se T = F D / 2 , r = d / 2 , J = πd 4 / 32 e A = πd 2 / 4 , Substituindo os termos: τ max = 8 FD πd 3 + 4F πd 2 . Substituindo o índice de mola C, vem τ max = 8FD  0.5  1 +  . C  πd 3  Alguns autores…

Seelinger, Ph.D. Medical and Pharmaceutical Services Berlin, Germany Ute Wölfle, Ph.D. Competence Center Skintegral Department of Dermatology University Medical Center Freiburg Freiburg, Germany William T. Shearer, M.D. Department of Pediatrics Baylor College of Medicine Houston, Texas Michael S. Tempesta, Ph.D. Phenolics LLC El Granada, California INTRODUCTION Plants have been used for medicinal purposes across history and cultures and even across species. Over the past…

Intestinal Infections and Trichomoniasis 209. Trichinella and Other Tissue Nematodes 210. Intestinal Nematodes 211. Filarial and Related Infections 212. Schistosomiasis and Other Trematode Infections 213. Cestodes 214. Microbial Bioterrorism 215. Chemical Bioterrorism 216. Radiation Bioterrorism 217. Basic Biology of the Cardiovascular System 218. Epidemiology of Cardiovascular Disease 219. Approach to the Patient with Possible Cardiovascular Disease 220. Physical…

Simulation Deterministic Systems", John Wiley & Sons, 1968. Carnahan, B. Luther, H. A. & Wilkes, J. O., "Applied Numerical Methods", Wiley, 1969. Beveridge, G. S. G. & Schechter, R. S., "Optimization: Theory and Practice", McGraw Hill, 1970. Himmelblau, D. M., "Process Analysis by Statistical Methods", Wiley, 1970. Crowe, C. M., "Chemical Plant Simulation. An Introduction to Computer-Aided Steady State Process Analysis", Prentice-Hall, 1971. Finlayson, B. A., "The Method of…

compact gears with a high power density. In other words, the powerweight ratio (kg/kW) of gears was reduced considerably in the past few years. Increased efficiency is mainly achieved by means of gear materials that are more resistant to wear (case hardened, high alloy steel), improved flank machining methods and optimized tooth geometry. The power-weight ratio of gear units can also be improved by means of torque division (planetary gears), light weight construction (light…