Search results for "LAL"
showing 10 items of 1001 documents
Home-prepared anatase, rutile, and brookite TiO2 for selective photocatalytic oxidation of 4-methoxybenzyl alcohol in water: reactivity and ATR-FTIR …
2009
5th European Meeting on Solar Chemistry and Photocatalysis -- OCT 04-08, 2008 -- Palermo, ITALY
Android lietotnes izstrāde
2016
La atención médica de los animales durante la Baja Edad Media en los reinos hispánicos
2011
Durante la Baja Edad Media, muchos animales de los que el hombre sacó un provecho recibieron atención médica (equinos, animales de granja, rebaños trashumantes, animales de colecciones zoológicas). La mayor parte de estas atenciones se llevaron a cabo dentro del marco doméstico y por las mismas personas que los tenían a su cargo, gracias a sus conocimientos empíricos transmitidos de generación en generación de forma oral, pero a veces también escrita. Solamente para el cuidado de algunos animales de elevado precio surgió un grupo de individuos que se dedicaron con mucha mayor intensidad, y a veces haciendo de ello su oficio, especialmente para tener cuidado de su salud (albéitares, halconer…
Inhibitory effects of N-acetylcysteine on superoxide anion generation in human polymorphonuclear leukocytes.
1997
Abstract It has been suggested that reactive oxygen species released by activated polymorphonuclear leukocytes (PMN) in man is one mechanism of tissue injury. Therapeutic action aimed at increasing antioxidant defence mechanisms is still a clinical challenge. This study examines the activity of N-acetylcysteine, a known antioxidant, in the protection of PMN exposed in-vitro to the chemoattractant peptide fMet-Leu-Phe (FMLP), the protein kinase C activator phorbol myristate acetate or the lipid peroxidation promoter t-butyl hydroperoxide. FMLP (3–300 nm) and phorbol myristate acetate (160 pm–160 nm) induced concentration-related superoxide anion generation. Pre-treatment with N-acetylcystein…
Anion-Exchange Properties of Trifluoroacetate and Triflate Salts of N-Alkylammonium Resorcinarenes
2016
The synthesis of N-benzyl- and N-cyclohexylammonium resorcinarene trifluoroacetate (TFA) and triflate (OTf) salt receptors was investigated. Solid-state analysis by single-crystal X-ray diffraction revealed that the N-alkylammonium resorcinarene salts (NARSs) with different upper substituents had different cavity sizes and different affinities for anions. Anion-exchange experiments by mixing equimolar amounts of N-benzylammonium resorcinarene trifluoroacetate and N-cyclohexylammonium resorcinarene triflate, as well as N-benzylammonium resorcinarene triflate and N-cyclohexylammonium resorcinarene trifluoroacetate showed that the NARS with flexible benzyl groups preferred the larger OTf anion…
Synthesis, characterization and the first crystal structure of the Zn(II) complex of 4,6-O-ethylidine-N-(2-hydroxybenzylidene)-β-D-glucopyranosylamine
2001
4,6-O-Ethylidine-N-(2-hydroxybenzylidene)-β-D-glucopyranosylamine (H3L1) and N-(5-bromo-2-hydroxybenzylidene-4,6-O-ethylidine-β-D-glucopyranosylamine (H3L2) molecules possessing a–C-1–N=C(H)–moiety for metal-ion binding were synthesized by condensing the 4,6–O–ethylidene–β–D–glucopyranosylamine with salicylaldehyde or 5–bromosalicylaldehyde. Complexes of these ligands with Zn(II) were isolated and characterized using elemental analysis, FTIR, UV–Vis absorption, NMR spectroscopic and FAB mass spectrometric techniques. The structure of the Zn(II) complex derived from H3L1 was established for the first time by a single-crystal X-ray diffraction study. The anomeric nature of the saccharide moie…
Anticipated Grief in Relatives of People with Alzheimer's Disease: Discourse Analysis
2021
Resumen La enfermedad de Alzheimer (EA) es la demencia más frecuente, considerada un proceso crónico e incurable. Los cuidadores de personas con EA pueden experimentar duelo anticipado. El objetivo fue observar el desarrollo de duelo anticipado en familiares de personas con EA. Participaron 10 cuidadores familiares de personas con EA en estado moderado o avanzado (70 % mujeres), de entre 18 y 80 años. Respondieron una entrevista semiestructurada (sentimientos, reconocimiento de la muerte, reorganización familiar, esperanza, facilitación o resistencia a la muerte y aproximación o distanciamiento del familiar). Se empleó la técnica del análisis cualitativo del contenido empleando la triangula…
BD MAX Enteric Bacterial, Bacterial Plus, and Virus Panels for Diagnosis of Acute Infectious Gastroenteritis: a Cost-Benefit Analysis
2022
Economic assessment is required to gauge the value of implementing PCR syndromic platforms in the microbiology laboratory for the diagnosis of community-acquired acute gastroenteritis (AGE) in pediatric and adult in- and outpatients. A cost-benefit analysis was conducted from a health care system perspective using BD MAX Enteric Bacterial, Bacterial Plus, and Virus panels. Two 6-month periods were selected, in which either conventional procedures (in 2017) or BD MAX PCR multiplex panels (in 2018) were used. We retrospectively reviewed medical records of all patients with positive results and a representative sample of negative ones. A Markov model was used to represent transition probabilit…