Results 1 to 10 of about 307 (128)

Quantifying the conservation status and abundance trends of wildlife communities with detection-nondetection data. [PDF]

Conserv Biol, 2022
Abstract Effective conservation requires understanding species’ abundance patterns and demographic rates across space and time. Ideally, such knowledge should be available for whole communities because variation in species’ dynamics can elucidate factors leading to biodiversity losses.
Farr MT, O'Brien T, Yackulic CB, Zipkin EF.   +3 more
europepmc   +2 more sources

Dosimetric algorithm to reproduce isodose curves obtained from a LINAC. [PDF]

Comput Math Methods Med, 2014
In this work isodose curves are obtained by the use of a new dosimetric algorithm using numerical data from percentage depth dose (PDD) and the maximum absorbed dose profile, calculated by Monte Carlo in a 18 MV LINAC. The software allows reproducing the absorbed dose percentage in the whole irradiated volume quickly and with a good approximation.
Estrada Espinosa JC, Martínez Ovalle SA, Pereira Benavides CK.   +2 more
europepmc   +2 more sources

MÉTODOS DE SIMULACIÓN COMPUTACIONAL EN BIOLOGÍA [PDF]

Epistemus, 2016
Las técnicas de simulación computacional se usan extensivamente para estudiar sistemas biológicos, y en general, materiales sólidos y blandos. Debido a la complejidad de los fenómenos biológicos, y a la imposibilidad de estudiar teóricamente el ...
Amir Darío Maldonado Arce, Claudio Contreras Aburto, Fernando Favela Rosales, Jorge Alfonso Arvayo Zatarain, Efrain Urrutia Bañuelos   +4 more
doaj   +2 more sources

Describing posterior distributions of variance components: Problems and the use of null distributions to aid interpretation

Methods in Ecology and Evolution, Volume 14, Issue 10, Page 2557-2574, October 2023., 2023
Abstract Assessing the biological relevance of variance components estimated using Markov chain Monte Carlo (MCMC)‐based mixed‐effects models is not straightforward. Variance estimates are constrained to be greater than zero and their posterior distributions are often asymmetric.
Joel L. Pick, Claudia Kasper, Hassen Allegue, Niels J. Dingemanse, Ned A. Dochtermann, Kate L. Laskowski, Marcos R. Lima, Holger Schielzeth, David F. Westneat, Jonathan Wright, Yimen G. Araya‐Ajoy   +10 more
wiley   +1 more source

A partial least squares analysis of gender inequality, occupational segregation, and economic growth: Evidence from Sub‐Saharan Africa

Regional Science Policy &Practice, Volume 15, Issue 6, Page 1299-1316, August 2023., 2023
Abstract The biggest barrier to an egalitarian Sub‐Saharan Africa (SSA) appears to be deeply ingrained structural obstacles and gender imbalances. The significant prevalence of gender inequities, which have both structural and economic ramifications, must be addressed if SSA is committed to achieving the Africa 2063 Agenda (the Africa we want) and ...
Wycliffe Obwori Alwago
wiley   +1 more source

Can we manage marine mammal bycatch effectively in low‐data environments?

Journal of Applied Ecology, Volume 58, Issue 3, Page 596-607, March 2021., 2021
Here we develop three alternative methods that expand the toolbox of approaches available for use in determining marine mammal conservation reference points for human‐caused mortality when it is not possible to apply the more standard, data‐hungry Potential Biological Removal approach.
André E. Punt, Margaret C. Siple, Tessa B. Francis, Philip S. Hammond, Dennis Heinemann, Kristy J. Long, Jeff Moore, Maritza Sepúlveda, Randall R. Reeves, Guðjón Már Sigurðsson, Gísli Víkingsson, Paul R. Wade, Rob Williams, Alexandre N. Zerbini, Anaëlle Lemasson   +14 more
wiley   +1 more source

VALIDACIÓN DE LA ESTIMACIÓN DE INCERTIDUMBRE EN LA CALIBRACIÓN DE MATRACES PARA EL MÉTODO DE SUSTITUCIÓN SIMPLE SIN MASA DE SENSIBILIDAD MEDIANTE EL MÉTODO DE MONTE CARLO

Ingeniería, 2011
Se calibró un matraz de 100 mL por el método gravimétrico, utilizando el método de sustitución simple para determinar la masa. Además, se estimó la incertidumbre mediante el método tradicional de la Guide to the expression of uncertainty in measurement ...
Johanna Méndez Arias, Lautaro Ramírez Varas   +1 more
doaj   +1 more source

Diseño metodológico para la simulación del balance hídrico de una represa: caso Tunja, Colombia - Methodological design for the simulation of the water balance of a dam: Tunja case, Colombia

Revista Científica, 2017
En este trabajo se aplica la técnica de simulación de Monte Carlo para modelar el balance hídrico de una represa que surte de agua potable a la ciudad de Tunja en Colombia. Se analizan dos fuentes alternas de agua potable.
María Camila Osso-Rodríguez, Sergio Cabrales-Arevalo, John William Rosso-Murillo   +2 more
doaj   +1 more source

Formulación de Funciones de Costo de Incertidumbre en Pequeñas Centrales Hidroeléctricas dentro de una Microgrid

Ingenierías USBMed, 2017
El presente artículo propone extender el concepto de costo de incertidumbre en la operación de sistemas de energía que contienen fuentes renovables (solar y eólica) a sistemas de potencia con penetración de pequeñas centrales hidroeléctricas (PCHs).
Ferney Sadid Molina Sanchez, Sergio Jair Pérez Sichacá Sergio, Raul Rivera Rodriguez   +2 more
doaj   +1 more source

Unseen Costs: The Direct and Indirect Impact of U.S. Immigration Policies on Child and Adolescent Health and Well‐Being

Journal of Traumatic Stress, Volume 33, Issue 6, Page 873-881, December 2020., 2020
Abstract Shifts in migration and border control policies may increase the likelihood of trauma exposure related to child–parent separation and result in costs to the health system and society. In the present study, we estimated direct and indirect costs per child as well as overall cohort costs of border control policies on migrant children and ...
T. Joseph Mattingly II, Laurel Kiser, Sherika Hill, Ernestine C. Briggs, Carrie Purbeck Trunzo, Zafar Zafari, Theresa S. Betancourt   +6 more
wiley   +1 more source