Results 41 to 50 of about 6,562 (178)

Estimación del riesgo en un portafolio de activos

Apuntes del CENES, 2013
Este trabajo introduce el uso de la teoría de valor extremo (EVT) y cópulas para la estimación del valor en riesgo (VaR). Se considera como aplicación a un portafolio compuesto por tres activos representativos del mercado colombiano.
Luis Guillermo Díaz, Diana A Maldonado, Sandra Milena Salinas   +2 more
doaj  

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

Conservation Biology, Volume 40, Issue 3, June 2026.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás, Francisco Botello, Claudia E. Moreno, Griselda Escalona‐Segura, Víctor Sánchez‐Cordero   +4 more
wiley   +1 more source

Complicaciones asociadas a la hiperglucemia en pacientes trasplantados de hígado

Revista de Gastroenterología de México, 2014
Antecedentes: La hiperglucemia es un fenómeno frecuente en los pacientes hospitalizados asociado a desenlaces negativos, y es frecuente en los pacientes trasplantados de hígado como un fenómeno de estrés y asociada a medicamentos inmunosupresores. Aunque
Carlos Esteban Builes Montaño, Julián Felipe Montoya, Carolina Aguilar Londoño, Karen Lorena Palacios Bayona, Juan Carlos Restrepo Gutiérrez, Johnayro Gutiérrez Restrepo, Clara María Arango Toro, Fabián Alberto Jaimes Barragan   +7 more
doaj   +1 more source

First‐trimester prediction and prevention of preterm pre‐eclampsia in women with chronic hypertension

Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 5, Page 613-622, May 2026.
ABSTRACT Objectives To evaluate the effect of aspirin on gestational age at delivery due to preterm pre‐eclampsia (PE) in women with chronic hypertension (CH), to assess the predictive performance of the Fetal Medicine Foundation (FMF) first‐trimester competing‐risks model for preterm PE in this high‐risk group and to evaluate how parity, previous PE ...
D. L. Rolnik, S. Gil‐Pugliese, A. Syngelaki, E. Bujold, D. Wright, L. C. Poon, K. H. Nicolaides, ASPRE and SPREE Collaborators, C. de Paco Matallana, D. Janga, E. Greco, F. S. Molina, G. Papaioannou, H. Meiri, J. C. Jani, K. Maclagan, K. Tenenbaum‐Gavish, M. Singh, M. Y. Tan, N. O'Gorman, N. Persico, R. Akolekar, S. Cicero, W. Plasencia   +23 more
wiley   +1 more source

Longitudinal maternal hemodynamics in high‐risk pregnancies with different subtypes of pre‐eclampsia

Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 5, Page 623-634, May 2026.
ABSTRACT Objective To evaluate maternal cardiac adaptation during pregnancy by comparing longitudinal hemodynamic profiles between women identified as high risk for preterm pre‐eclampsia (PE) who subsequently developed preterm PE, term PE or remained unaffected, as well as low‐risk women.
J. Lin, X. Wang, Y. Chen, L. Nguyen‐Hoang, A. S. T. Tai, I. S. Wong, X. Y. Chen, M. H. Ng, H. H. Y. Leung, A. P. W. Lee, L. C. Poon   +10 more
wiley   +1 more source

El dilema clínico frente a los pacientes con ergometría positiva y prueba de perfusión miocárdica con SPECT normal

Evidencia. Actualización en la Práctica Ambulatoria
La evaluación de la perfusión miocárdica con SPECT combina una prueba de esfuerzo (ergometría o estrés farmacológico) junto a imágenes de perfusión con radioisótopos.
Julio Diego Baez
doaj   +1 more source

Valor en riesgo usando valores extremos y cópulas

, 2022
In this document, the Value at Risk is estimated for a portfolio made up of the IPyC of Mexico and the S&P500 of the United States, using the theory of extreme values ​​and the copula approach. The application of the extreme value theory is justified in that the estimate of the value at risk is associated with the quantile of the lower tail of the ...
openaire   +1 more source

Integrating biodiversity and business: Emerging methods driving the nature economy

Methods in Ecology and Evolution, Volume 17, Issue 5, Page 1326-1335, May 2026.
Abstract Biodiversity is increasingly recognised as a material (i.e. significant) risk to corporate value creation due to links with climate risk, land use and social equity, and through growing engagement with frameworks, such as the Taskforce on Nature‐related Financial Disclosure and Science‐Based Targets Network.
Sarah Luxton, Daniel Itzamna Avila‐Ortega, Sebastian Dunnett   +2 more
wiley   +1 more source

Bioeconomía circular, una oportunidad de agregar valor y aumentar la competitividad de la cadena de valor leche-queso en México

Nova Scientia
El sector lechero es uno de los más importantes del país; pese a su importancia y a la alta demanda de productos de origen animal, esta industria se asocia a la contaminación ambiental debido a la acumulación de gases de efecto invernadero y a la ...
María Magdalena Rojas Rojas, Karina Valencia Sandoval, José de Jesús Brambila Paz   +2 more
doaj   +1 more source

Actividad física y deporte en jóvenes en riesgo : educación en valores

Apunts. Educación física y deportes, 2005
ESP
Jiménez Martín, Pedro Jesús, Durán González, Luis Javier   +1 more
openaire   +2 more sources