Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/43025
Title: Central adiposity and mortality after first-ever acute ischemic stroke
Author: Felix, M.V.
Rodriguez-Rojas, R.A.
Castaneda-Contreras, J.
Morones, R.
Castano, V.M.
Issue Date: 2005
Abstract: Two-semiempirical positron stationary quantum models are developed for the study of nanoporosity in a wide range of solid porous materials. The cubic and conic well potentials are considered and their geometric parameters are related to the Positron Annihilation LifeTime Spectroscopy measurements (PALS). A new resonance lifetime phenomenon is found, which enables to propose a technique to trap positrons in such sites. The free volume equations of these new models were then compared to the well-known and widely utilized Spherical Free Volume Model (SFVM) and we found remarkable differences. A strong variation of the free volume size-positron lifetime relation with the geometry involved is observed and a remarkable dependence of the electron layer thickness parameter ?R with the hole-shape under study and with the nature of the material considered. The mathematical functions appearing in the conic case are the superposition of Bessel functions of the first kind and trigonometric functions in the cubic case. Generalized free volume diagrams were drawn and a geometrical representation of the diverse cases considered was obtained. " 2004 Elsevier B.V. All rights reserved.",,,,,,"10.1016/j.optmat.2004.11.026",,,"http://hdl.handle.net/20.500.12104/43025","http://www.scopus.com/inward/record.url?eid=2-s2.0-15944398358&partnerID=40&md5=b5a1332608ad7f67306be5aa9d9485da",,,,,,"7",,"Optical Materials",,"1286
1290",,"27",,"Scopus
WOS",,,,,,"Bessel functions of the first kind; Free volume diagrams; Positron annihilation; Positron traps",,,,,,"Nanoporosity as quantum positron traps",,"Conference Paper" "41737","123456789/35008",,"Sergueyevich, S.V., Universidad de Guadalajara, CUCEI, Departamento de Ing. Mecúnica Eléctrica, Av. Revolución 1500 Puerta 10, CP 44430, Guadalajara, Jalisco, Mexico; Rosales, M.G.O., Universidad de Guadalajara, CUCEI, Departamento de Ing. Mecúnica Eléctrica, Av. Revolución 1500 Puerta 10, CP 44430, Guadalajara, Jalisco, Mexico; García, J.M., Universidad de Guadalajara, CUCEI, Departamento de Ing. Mecúnica Eléctrica, Av. Revolución 1500 Puerta 10, CP 44430, Guadalajara, Jalisco, Mexico; Quintana, L.A.Z., Universidad de Guadalajara, CUCEI, Departamento de Ing. Mecúnica Eléctrica, Av. Revolución 1500 Puerta 10, CP 44430, Guadalajara, Jalisco, Mexico; López, G.R.P., Universidad de Guadalajara, CUCEI, Departamento de Ing. Mecúnica Eléctrica, Av. Revolución 1500 Puerta 10, CP 44430, Guadalajara, Jalisco, Mexico",,"Sergueyevich, S.V.
Rosales, M.G.O.
García, J.M.
Quintana, L.A.Z.
Lopez, G.R.P.",,"2006",,"Today, our ability to simulate chain conveyor systems in the computer prior to cutting the first steel has tremendous potential for conveyor design engineers. The goal of the present research was to develop a simulation model of overhead monorail conveyor system and statistical methods for the analysis and multi-objective optimization of the manufacturing process. Such systems provide connectivity to large area and buffering to streamline the material flow between machinery. We show how simulation and statistical analysis are influenced in the design methodology of chain accumulating conveyor system Aspects of experimental design in simulation and multiple response optimization of such systems are discussed. The report phase of this work is the determination of the optimum speed of conveyor, step of carriers and total capacity of the technological machines for the criteria of minimum drive power, time in system, lengths of queues, waiting time in unloading points etc. No substantive published work has been located which deals with these fundamental issues.",,,,,,,,,"http://hdl.handle.net/20.500.12104/39958","http://www.scopus.com/inward/record.url?eid=2-s2.0-33751256532&partnerID=40&md5=a0d3dd84f89015fa634ac6b2dc03f59c",,,,,,,,"Proceedings of the IASTED International Conference on Modelling and Simulation",,"172
177",,"2006",,"Scopus",,,,,,"Design and analysis of experiments; Optimization; Simulation",,,,,,"Chain conveyor system simulation and optimization",,"Conference Paper" "41718","123456789/35008",,"Chiquete, E., Department of Neurology and Psychiatry, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico; Ruiz-Sandoval, J.L., Departments of Neurology, Mexico; Murillo-Bonilla, L., Departments of Neurology, Facultad de Medicina, Universidad Autónoma de Guadalajara, Mexico; León-Jiménez, C., Department of Neurology, Hospital Valentín Gomez Farías, Zapopan, Mexico; Ruiz-Madrigal, B., Departments of Molecular Biology, Hospital Civil de Guadalajara Fray Antonio Alcalde, Mexico, Department of Molecular Biology, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico; Martínez-López, E., Departments of Molecular Biology, Hospital Civil de Guadalajara Fray Antonio Alcalde, Mexico, Department of Molecular Biology, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico; Roman, S., Departments of Molecular Biology, Hospital Civil de Guadalajara Fray Antonio Alcalde, Mexico, Department of Molecular Biology, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico; Panduro, A., Departments of Molecular Biology, Hospital Civil de Guadalajara Fray Antonio Alcalde, Mexico, Department of Molecular Biology, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico; Ramos, A., Scientific Area, Sanofi-Aventis, Mexico City, Mexico; Cantú-Brito, C., Department of Neurology and Psychiatry, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico
Panduro-Cerda, Arturo., Universidad de Guadalajara. Centro Universitario de Ciencias de la Salud",,"Chiquete, E.
Ruiz-Sandoval, J.L.
Murillo-Bonilla, L.
Leon-Jimenez, C.
Ruiz-Madrigal, B.
Martinez-Lopez, E.
Roman, S.
Panduro-Cerda, Arturo
Ramos, A.
Cantu-Brito, C.",,"2013",,"Background: The waist-to-height ratio (WHtR) may be a better adiposity measure than the body mass index (BMI). We evaluated the prognostic performance of WHtR in patients with acute ischemic stroke (AIS). Methods: First, we compared WHtR and BMI as adiposity measures in 712 healthy adults by tetrapolar bioimpedance analysis. Thereafter, baseline WHtR was analyzed as predictor of 12-month all-cause mortality in 821 Mexican mestizo adults with first-ever AIS by a Cox proportional hazards model adjusted for baseline predictors. Results: In healthy individuals, WHtR correlated higher than BMI with total fat mass and showed a higher accuracy in identifying a high percentage of body fat (p < 0.01). In AIS patients a U-shaped relationship was observed between baseline WHtR and mortality (fatality rate 29.1%). On multivariate analysis, baseline WHtR ?0.300 or >0.800 independently predicted 12-month all-cause mortality (hazard ratio 1.91, 95% confidence interval 1.04-3.51). BMI was not associated with mortality, tested either as continuous, binomial or stratified variable. Conclusion: WHtR is a modifiable risk factor that accurately demonstrates body fat excess. Extreme WHtR values were associated with increased 12-month all-cause mortality in Mexican mestizo patients with AIS. No survival advantage was found with high WHtR as the pragmatic indicator of obesity in this population. Copyright " 2013 S. Karger AG, Basel.
URI: http://hdl.handle.net/20.500.12104/39939
http://www.scopus.com/inward/record.url?eid=2-s2.0-84880183550&partnerID=40&md5=e5b546b6f8b1395b3fa61042fbb33be1
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