Results 31 to 40 of about 1,655,015 (245)

Study of silane layers grown on steel and characterized using ellipsometry at different wavelengths and incidence angles [PDF]

open access: yes, 2016
Films of gmercap to propyltri methoxysilane are prepared by hydrolysis, condensation and curing at 80 oC. The optical indices, n, k and the thickness d are calculated using the ellipsometry technique.Aprogramme is developed to fit a wide set of ...
Deya, Marta Cecilia   +5 more
core   +1 more source

Resistencia a colistina mediada por plásmido en Escherichia coli recuperadas de aves de corral sanas [PDF]

open access: yes, 2017
Resistencia a colistina mediada por plásmido en Escherichia coli recuperadas de aves de corral sanas.Fil: Dominguez, Johana Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas.
Cejas, Daniela   +7 more
core   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento   +3 more
wiley   +1 more source

La clínica frente a la tecnología: ¿sigue siendo esencial en el diagnóstico de apendicitis aguda?

open access: yesRevista de Cirugía Colorrectal
La apendicitis aguda es una urgencia quirúrgica común que, si no se trata oportunamente, puede causar abscesos, íleo, peritonitis e incluso la muerte. Su fisiopatología se basa en la obstrucción de la luz apendicular, lo que compromete el flujo vascular, facilita la proliferación bacteriana y genera una respuesta inflamatoria.
Juan A. Villanueva-Herrero   +10 more
openaire   +2 more sources

Variable Oriole (Icterus pyrrhopterus) breeding in abandoned nests of Red-rumped Caciques (Cacicus haemorrhous) in Misiones, Argentina [PDF]

open access: yes, 2011
Boyerito (Icterus pyrrhopterus) nidificando en nidos abandonados de Cacique Lomo Rojo (Cacicushaemorrhous) en Misiones, Argentina.Fil: Fraga, Rosendo Manuel. Provincia de Entre Ríos.
Fraga, Rosendo Manuel
core  

Shape memory epoxy vitrimers based on DGEBA crosslinked with dicarboxylic acids and their blends with citric acid [PDF]

open access: yes, 2016
Thermosetting polymers were synthesized from a commercial epoxy resin (diglycidyl ether of bisphenol A, DGEBA) and tricarboxylic (citric, CA) and different dicarboxylic (sebacic, SA and glutaric, GA) acids.
Altuna, Facundo Ignacio   +2 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

A Validated Reversed-Phase HPLC Method for the Determination of Atorvastatin Calcium in Tablets [PDF]

open access: yes, 2014
A Reversed-Phase Liquid Chromatographic (RP-LC) assay method was developed for the quantitative determination of atorvastatin calcium in the presence of its degradation products.
Ferello, L.   +5 more
core  

On the uniqueness of the helicoid and Enneper’s surface in the Lorentz-Minkowski space R31 [PDF]

open access: yes, 2011
In this paper we deal with the uniqueness of the Lorentzian helicoid and Enneper’s surface among properly embedded maximal surfaces with lightlike boundary of mirror symmetry in the Lorentz-Minkowski space R3Ministerio de Ciencia y Tecnología MTM2004 ...
Fernández Delgado, Isabel   +1 more
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

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