Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions
Now showing items 4121-4140 of 5198
-
(Universita degli Studi di Pisa, Istituto di Chimica Agraria, 1992)Wasterwastes of municipal and industrial origin used to irrigate farmlands contain heavy metals which are sorbed on the surfaces of soil particles. Among those metals are cadmium (Cd) and copper(Cu). The degree to which ...
-
(Asociación Chilena de Microbiología, 1996)Las xilanasas son enzimas, producidas por hongos y bacterias que degradan el xilano de las hemicelulosas vegetales y tienen una importante aplicación en el bioblanqueamiento de la celulosa. A partir de compost, se ...
-
(Santiago, Chile, Círculo de Estudios de Química y Farmacia, 1931)En los análisis bromatológicos de diferentes productos alimenticios, como chocolates y bizcochos de leche, mazapanes, pasteles y galletas a base de mantequilla, etc. se tropieza a menudo con la dificultad de reconocer, si ...
-
(The Williams & Wilkins Co., 1972)When the maximum complexing ability (MCA) of water-soluble complexants of unknown molecular weight is known, it is possible to calculate the stability constants of metal complexes where these complexants participate (2,4,5). ...
-
(The Williams & Wilkins Co., 1975)Characterization of the metal-complexing ability of polyfunctional macromolecules through the determination of stability constants of their metalic complexes is discussed along with the validity of ascribing a relationship ...
-
(The Williams & Wilkins Co., 1975)An experimental method to determine available phosphate in soils using anion exchange resin as an extractant has been described (3, 5). However, when this method is applied to volcanic ash-derived soils, some problems ...
-
(Sociedad Chilena de Tecnología de Alimentos, 1985)Se formuló y desarrolló un guiso preparado (garbanzos con carne) en ración individual y destinado a una institución estatal. Se prepararon diferentes formulaciones de guisos que cumplían teóricamente las especificaciones ...
-
(Universidad de Chile, 1997)Cuando Platón regresó a Atenas en el año 387 a.C., se estableció una escuela de filosofía en un jardín, a poco más de 1 Km. de distancia de la ciudad, con olivos, estatuas y templos, denominado Academos, en honor a su ...
-
(Elsevier Science Publ. B.V., 1993)The clusters of M2[O2CCCo3(CO)9]4-n[O2CR]n, where M is Cr, n= O; where M is Mo, n = 0,1, R is CH3; where M is W, n=0; exhibit allowed transitions with absorvance maxima that correlate with the lowest ionization energy of ...
-
(AMER CHEMICAL SOC, 1998-07-10)
-
(American Society of Microbiology, 1973)Cell-free extract supernatant fluids of Pseudomonas aeruginosa were shown to lack malic dehydrogenase but possess a nicotinamide adenine dinucleotide (NAD) - or NAD phosphate (NADP)-dependent enzymatic activity, with ...
-
(Madrid, Dpto. de Investigaciones Bromatológicas. Consejo Superior de Investigaciones Científicas, 1978)The nutritive value of four important chileans industries of nonalcoholic beverage was studied. Differents kinds of beverages were analized in order to determine: moisture, ash, sugars and minerals: calcium, magnesium, ...
-
(Universidad de Chile, Facultad de Medicina, Clínica Psiquiátrica Universitaria, 2006)Existen numerosos estudios que muestran que los trastornos mentales comunes son enfermedades frecuentes y discapacitantes. Se ha observado que los estudiantes universitarios constituyen un grupo de riesgo. El objetivo ...
-
(Sociedad Chilena de Cardiología y Cirugía Cardiovascular, 2001)El proyecto Genoma Humano ha logrado descifrar la secuencia completa del genoma, aportando una herramienta única para el estudio de la genética humana. Sin embargo, se ha observado cada vez más frecuentemente la aparición ...
-
(Sociedad Chilena de Química, 1986)Pyrolysis of di-terbutylperoxyoxalate at 45ºC in the presence of acetaldehyde produces quantitative yields of tertbutanol and biacetyl. Luminescence arising from excited biacetyl is produced during the peroxide decomposition. ...
-
(PERGAMON-ELSEVIER SCIENCE LTD, 2003-05)Comparative studies of intrinsic and extrinsic fluorescence of apyrases purified from two potato tuber varieties (Pimpernel and Desiree) were performed to determine differences in the microenvironment of the nucleotide ...
-
(SOCIEDAD CHILENA DE QUIMICA, 2003-03)A high performance thin layer chromatography (HPTLC) method for the determination of atrazine in aqueous soil extracts was studied. To verify the applicability of the method in environmental concern studies, soil samples ...
-
(AMER CHEMICAL SOC, 2003-12-12)3-Amino-delta-valerolactams trans-11a-c were synthesized through conjugate addition and Curtius rearrangement and converted into Fmoc-{Trp-Gly}, Fmoc-{Ile-Gly}, and Fmoc-{Phe-Gly} pseudo-dipeptides. Conformational analyses ...
-
(Chile, Universidad de la Frontera. Facultad de Ciencias Agropecuarias, 1999)Uno de los principales constituyentes del suelo es la materia orgánica que en los suelos del sur de Chile alcanza valores promedio de hasta 20%. Esta fracción orgánica enriquece el suelo, porque mejora sus características ...
-
(Sociedad Chilena de Nutrición, Bromatología y Tecnología, 1982)The evaluation of the sensorial quality of tea was developed in order to complement the information obtained from physico-chemical analysis performed on different types of tea. The work was carried on with 12 samples, ...
