1,902 research outputs found
12-Month Continuous Eligibility in Medicaid: Impact on Service Utilization
Summarizes findings on how allowing Medicaid enrollees to remain enrolled without reapplying for twelve months affected the number of Medi-Cal-enrolled children's emergency room visits and physician visits compared with those with discontinuous coverage
Number of Uninsured Jumped to More Than Eight Million from 2007 to 2009
Updates 2007 California Health Interview Survey data with estimates for 2009 population growth and changes in insurance status among the non-elderly. Examines trends by source of coverage and explores contributing factors
Can rigidly rotating polytropes be sources of the Kerr metric?
We use a recent result by Cabezas et al. to build up an approximate solution
to the gravitational field created by a rigidly rotating polytrope. We solve
the linearized Einstein equations inside and outside the surface of zero
pressure including second-order corrections due to rotational motion to get an
asymptotically flat metric in a global harmonic coordinate system. We prove
that if the metric and their first derivatives are continuous on the matching
surface up to this order of approximation, the multipole moments of this metric
cannot be fitted to those of the Kerr metric.Comment: LaTeX, 17 pages, submitted to CQ
Cortical spreading depression and mitochondrial dysfunction with aging: lessons from ethanol abuse
Chronic consumption of ethanol has a damaging effect in various organs and metabolic functions, including liver, kidney, heart, pancreas, and brain (Sun and Sun, 2001; Bezerra Rde et al., 2005). Additionally, it has been shown that both the acute and chronic ethanol intake induce alteration in voltage-gated channels causing behavioral and electrophysiological changes in the brain (Little, 1999). In the last few years, the effect of ethanol in the electrophysiological phenomenon, known as cortical spreading depression (CSD), has been widely assessed (Sonn and Mayevsky, 2001; Bezerra Rde et al., 2005; Abadie-Guedes et al., 2008) as an important model to predict the damaging effects of ethanol in both young and aged brains.Fil: Barreto, George E.. Pontificia Universidad Javeriana; ColombiaFil: Capani, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Cardiológicas (i); ArgentinaFil: Cabezas, Ricardo. Pontificia Universidad Javeriana; Colombi
Signos de retinopatía hipertensiva como indicadores de riesgo de morbilidad y mortalidad cardiovascular.
Se realiza el presente estudio transversal, no exprimental de correlación, con la finalidad de determinar si los signos de retinopatía hipertensiva son indicadores de riesgo de morbilidad y mortalidad cardiovascular en los pacientes mayores de 40 años del club de hipertensión arterial del hospital Daniel Alcides Carrión del Callao.
Material y métodos: El universo de estudio estuvo constituido por los pacientes atendidos en el club de hipertensión arterial del hospital Daniel Alcides Carrión del Callao, Perú entre enero del 2001 y diciembre del 2007, evaluados oftalmológicamente cada año, poniendo énfasis en el compromiso retinal de la hipertensión y asociándolo a la morbilidad (patología sistémica, renal, cerebral,
cardiovascular) así como al riesgo de mortalidad.This study was performed cross-sectional non-experimental correlation for the purpose of determining whether hypertensive retinopathy signs are indicators of risk of cardiovascular morbidity and mortality in patients over 40 years of the club on hypertension of the hospital Daniel Alcides Carrión del Callao determined by the level of association between the degree of hypertensive retinopathy and the presence of systemic compromise kidney, brain or heart. Methods: The study universe was composed of patients attending the hypertension club hospital Daniel Alcides Carrión in Callao, Peru between january 2001 and december 2007, evaluated ophthalmologist each year,
emphasizing the commitment of retinal hypertension and associating it with the disease (systemic disease, kidney, brain, cardiovascular) and mortality risk
Mechanical Properties of Three-layer Boards of Pine (Pinus radiata) and Pigue (Piptocoma discolor) Owned by the PISMADE S.A. Company
The present study proposes to determine the mechanical properties of three-layer boards of pine (Pinus radiata) and pigue (Piptocoma discolor) owned by the PISMADE S.A. Company. The tests were carried out under established technical procedures, with the use of international standards, at the Materials Resistance laboratory of the Faculty of Mechanics located in the Higher Polytechnic School of Chimborazo. 24 test pieces belonging to three-layer boards provided by the company were evaluated, each of them of different dimensions for bending and compression tests. It was possible to verify the different resistances that the boards of these species support; bending and compression values for both pine and pigue were obtained, appropriate for their use in the industry. The information generated deems this material rigid and appropriate for its efficient and durable use.
Keywords: compression, flexion, mechanical properties, wood boards.
Resumen
El presente estudio propone determinar las propiedades mecánicas en tableros tricapa de pino (Pinus radiata) y pigue (Piptocoma discolor) propiedad de la empresa PISMADE S.A. Los ensayos se los realizó bajo procedimientos técnicos, con la utilización de normas internacionales, dentro del laboratorio de Resistencia de Materiales de la facultad de Mecánica ubicado en la Escuela Superior Politécnica de Chimborazo. Evaluándose 24 probetas pertenecientes a tableros alistonados tricapa, cada una de ellas de diferentes dimensiones para ensayos de flexión y compresión, proporcionados por la empresa. Se pudo comprobar las diferentes resistencias que soportan los tableros de estas especies, obteniendo valores de flexión y compresión tanto para pino y pigue apropiados para su utilización en la industria. La información generada considera a este material rígido y apropiado para su uso eficiente y duradero.
Palabras clave: compresión, flexión, propiedades mecánicas, tableros de madera
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