Results 81 to 90 of about 117,598 (307)

Hepatitis A en el área de salud "Mártires de Calabazar", 1989-2006

open access: yesRevista Cubana de Higiene y Epidemiología
Se realizó un estudio observacional, descriptivo, retrospectivo sobre hepatitis A en el área de salud "Mártires de Calabazar durante el período comprendido entre enero de 1989 y diciembre del 2006, con el propósito de caracterizar su comportamiento y ...
Neylim Blanco Hernández   +2 more
doaj  

Propuesta metodológica para la determinación de inhomogeneidades relativas en las series de observaciones [PDF]

open access: yes, 2001
El análisis de la estructura y evolución de las series temporales requiere un estudio previo de la calidad de los registros de observaciones, por lo que es preciso realizar pruebas sobre su homogeneidad interna.
García Barrón, Leoncio   +1 more
core   +1 more source

Clinical, histological, and serological predictors of renal function loss in lupus nephritis.

open access: yesArthritis Care &Research, Accepted Article.
Objective Kidney survival is the ultimate goal in lupus nephritis (LN) management, but long‐term predictors remain inadequately studied, requiring long‐term follow‐up. This study aimed to identify baseline and early longitudinal predictors of kidney survival in the Accelerating Medicines Partnership LN longitudinal cohort.
Shangzhu Zhang   +21 more
wiley   +1 more source

Análisis estadístico de la producción camaronera del Ecuador [PDF]

open access: yes, 2009
Esta investigación estudia la situación de la producción y exportación de camarón ecuatoriano en el período correspondiente a Enero de 1994 hasta Septiembre de 1999, las variables se analizan a través de modelación de series temporales utilizando el ...
Chavez Anton, Howard Lizardo   +1 more
core   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer   +3 more
wiley   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

Caracterización de pacientes con diferentes niveles de riesgo cardiovascular mediante diagramas de Poincaré [PDF]

open access: yes, 2016
En este trabajo se propone caracterizar la dinámica no-lineal de los sistemas cardíaco, vascular y respiratorio a partir de los diagramas de Poincaré. Se han analizado 46 pacientes con cardiomiopatía isquémica (ICM) o dilatada (DCM), y 35 sujetos sanos ...
Bayés Genis, Antoni   +4 more
core  

Análisis de series temporales climáticas

open access: yes, 2020
The aim of the work presented below is to find a model that adjusts a climate time series in order to make more or less reliable predictions of climate behaviour in the future. In terms of methodology, the work revolves around the application of the bootstrapping technique to calculate the standard deviation bootstrap estimator on a series of dependent
openaire   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer   +3 more
wiley   +1 more source

Un modelo que intenta explicar la producción desde otra perspectiva [PDF]

open access: yes, 2017
42 páginasEn el siguiente trabajo se calcula un modelo que intenta explicar el Producto Interno Bruto, teniendo en cuenta los beneficios y los salarios.
Rojas Cepeda, Daniel Felipe
core  

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