Results 41 to 50 of about 6,514 (180)

Predictive value of gB2 antibodies for maternal–fetal transmission after primary cytomegalovirus infection treated with valacyclovir

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 455-460, April 2026.
ABSTRACT Objective To estimate the residual risk of maternal–fetal transmission after primary cytomegalovirus (CMV) infection in the periconceptional period or the first trimester in women treated with valacyclovir, and to assess whether the presence of glycoprotein B2 (gB2)‐specific immunoglobulin (Ig)‐G antibodies on immunoblot analysis refines fetal
K. O. Kagan   +6 more
wiley   +1 more source

La medición del riesgo en eventos extremos. Una revisión metodológica en contexto

open access: yesLecturas de Economía, 2012
En este documento se exploran varias metodologías para el cálculo del Valor en Riesgo (VeR) utilizadas actualmente en la regulación internacional y la administración de portafolios. Se exponen las limitantes de las mismas y las posibles consecuencias de
Jorge Uribe, Inés Ulloa
doaj   +2 more sources

Estimación del riesgo en un portafolio de activos

open access: yesApuntes 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   +2 more
doaj  

Placental insufficiency markers to assess the risk of non‐chromosomal genetic conditions in early‐onset fetal growth restriction

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 492-499, April 2026.
ABSTRACT Objectives To assess the value of placental insufficiency markers for estimating the risk of genetic anomalies in fetuses with isolated early‐onset fetal growth restriction (FGR), defined as an estimated fetal weight ≤ 3rd percentile diagnosed ≤ 28 + 6 weeks' gestation.
M. Armengol‐Alsina   +17 more
wiley   +1 more source

Adapting Species Risk Assessments to a Changing Climate: The Underestimated Vulnerability of Foundational Trees

open access: yesGlobal Change Biology, Volume 32, Issue 4, April 2026.
Climate change is one of the top threats to biodiversity. However, many species risk assessment frameworks, including the globally authoritative International Union for Conservation of Nature Red List, do not consistently and comprehensively incorporate loss of climatically suitable habitat into listing or threat categorization decisions.
Blair C. McLaughlin   +6 more
wiley   +1 more source

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

open access: yesEvidencia. 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

open access: yes, 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

When the Regulatory State Meets Populism: Regulatory Agencies in Mexico

open access: yesGovernance, Volume 39, Issue 2, April 2026.
ABSTRACT This paper focuses on two questions: what kind of strategies of de‐institutionalization of the regulatory state have been chosen, and to what extent can they be linked to an explicit ‘populist’ agenda guided by a ‘will of the people’‐ based justification that cuts across different regulatory domains? Applied to the case of Mexico, this article
Mauricio I. Dussauge‐Laguna   +2 more
wiley   +1 more source

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

open access: yesApunts. Educación física y deportes, 2005
ESP
Jiménez Martín, Pedro Jesús   +1 more
openaire   +2 more sources

Why We Cannot Separate Evidence From Values in Public Policy

open access: yesPolitics &Policy, Volume 54, Issue 2, April 2026.
ABSTRACT Whether or not any particular policy is adequate by EBP's own standard—being evidence‐based—cannot be decided without appeal to value‐based considerations. We support this claim in two steps. First, we argue that which evidence gets used in policy‐making depends on our value commitments, which are rarely made explicit, let alone being the ...
Anne Schwenkenbecher   +14 more
wiley   +1 more source

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