Buscar recursos académicos

Abstract Intact spinach chloroplasts scavenge hydrogen peroxide with a peroxidase that uses a photoreductant as the electron donor, but the activity of ruptured chloroplasts is very low [Nakano and Asada (1980) Plant &am...

Materias / palabras clave: Hydrogen fuel; Energy storage; Hydrogen vehicle; Environmental science; Environmental economics; Hydrogen storage; Waste management; Process engineering; Hydrogen; Fuel cells; Business; Natural resource economics

Abstract For a successful analysis of the relation between amino acid sequence and protein structure, an unambiguous and physically meaningful definition of secondary structure is essential. We have developed a set of si...

Materias / palabras clave: Photocatalysis; Materials science; Artificial photosynthesis; Hydrogen production; Water splitting; Carbon nitride; Hydrogen; Semiconductor; Solar energy; Catalysis; Polymer; Carbon fibers

The thermodynamic functions Gibbs energy, enthalpy and entropy for the dissolution and mixing processes of triclosan (TS) in water are presented. These quantities were calculated by means of the van't Hoff and Gibbs equa...

"The renewed concern for the care of the environment has led to lower emissions of greenhouse gases without sacrificing modern comforts. Widespread proposal focuses on energy produced from renewable sources and its subse...

Inhibition action of propylene glycol (PG) on the antifungal activity of fluconazole has been investigated. PG was used as cosolvent and penetration enhancer in different solutions and topical dosage forms. The interacti...

Los selenitos ácidos del título fueron obtenidos y caracterizados por difractometría de rayos X de polvos y espectroscopía de infrarrojo. Su comportamiento térmico fue investigado a través de medidas TG y ADT. Asim...

Many potential applications have been proposed for carbon nanotubes, including conductive and high-strength composites; energy storage and energy conversion devices; sensors; field emission displays and radiation sources...

The calculation of accurate electron affinities (EAs) of atomic or molecular species is one of the most challenging tasks in quantum chemistry. We describe a reliable procedure for calculating the electron affinity of an...

Abstract An enzymatic method is described for determination of total serum cholesterol by use of a single aqueous reagent. The method requires no prior treatment of sample and the calibration curve is linear to 600 mg/dl...

Molecular structure does not easily identify the intricate noncovalent interactions that govern many areas of biology and chemistry, including design of new materials and drugs. We develop an approach to detect noncovale...

An extended basis set of atomic functions expressed as fixed linear combinations of Gaussian functions is presented for hydrogen and the first-row atoms carbon to fluorine. In this set, described as 4–31 G, each inner ...

In the present study antioxidant, anti-inflammatory and analgesic potential of the methanolic extract of Cucumis sativus seeds was evaluated. Extraction of the seeds was carried out using solvents of increasing polarity....

Docking studies of few substituted 5-benzyl-2, 4-thiazolidinedione moiety, which acts as peroxisome proliferator-activated receptor γ agonist was performed by using Glide v4.5. The docking studies reveal hydrogen bond f...

Abstract: We present the derivation of a new molecular mechanical force field for simulating the structures, conformational energies, and interaction energies of proteins, nucleic acids, and many related organic molecule...