Results 61 to 70 of about 32,012 (272)
Water Science and Engineering, 2013 The question of how to choose a copula model that best fits a given dataset is a predominant limitation of the copula approach, and the present study aims to investigate the techniques of goodness-of-fit tests for multi-dimensional copulas. A goodness-of-
Ming-wei Ma +4 more
doaj +1 more source
Flexible methods for species distribution modeling with small samples
Ecography, EarlyView.Species distribution models (SDMs) predict where species live or could potentially live and are a key resource for ecological research and conservation decision‐making. However, current SDM methods often perform poorly for rare or inadequately sampled species, which include most species on earth, as well as most of those of the greatest conservation ...
Brian S. Maitner +4 more
wiley +1 more source
Correlaciones entre fallidos y derivados de crédito: un modelo para la valoración de CDO [PDF]
, 2005 Este trabajo presenta un modelo factorial para el cálculo de la función de distribución de fallidos de instrumentos de deuda con riesgo, para un horizonte dado.
Peña Sánchez de Rivera, Juan Ignacio
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Waves of Uncertainty: Crude Oil Under Geopolitical, Economic, and ESG Turbulence
Energy Science &Engineering, EarlyView.Dynamic copula and wavelet coherence reveal that geopolitical, economic, and sustainability uncertainties significantly shape crude oil price co‐movements. Long‐term coherence, especially post‐2015, highlights the growing role of ESG risks alongside geopolitical shocks and economic crises in global energy risk transmission.
Sana Braiek +3 more
wiley +1 more source
Lecturas de Economía, 2011 Se presenta una metodología reciente para la detección del contagio financiero basada en coeficientes de dependencia asintótica. Este enfoque, sin alejarse de las condiciones teóricas del problema, logra sortear las críticas estadísticas a las que ...
Jorge Uribe
doaj
Competitividade sexual pré-zigótica em Mosca-das-frutas Anastrepha Fraterculus (Wiedmann, 1830) (Diptera: Tephritidae). [PDF]
, 2015 A mosca-das-frutas Anastrepha fraterculus é a principal praga da maçã e a técnica do inseto estéril seria uma alternativa para seu controle. O presente trabalho avaliou a competitividade sexual pré-zigótica entre três populações de A.
BARROS, C. A. de +3 more
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Effects of adult feeding on the reproduction and longevity of Noctuidae, Crambidae, Tortricidae and Elachistidae species [PDF]
This research evaluates the effect of the adult diet on the reproduction of Anticarsia gemmatalis Hübner, Heliothis virescens (Fabr.), Spodoptera frugiperda (J. E.
BERTI FILHO, Evoneo +4 more
core +1 more source
Energy Science &Engineering, EarlyView.Overview of the under‐study hub energy model showing the energy conversion and distribution among integrated sources and loads. ABSTRACT In this paper, a probabilistic bi‐objective energy management system (EMS) model is proposed for an energy hub (EH) equipped with renewable energy sources such as photovoltaic and wind turbine connected to the main ...
Mohammad Khoshabi +3 more
wiley +1 more source
Interdependence of the US dollar and Food Price through Copulas
Anuario Facultad de Ciencias Económicas y Empresariales, 2015 This paper describes the use of mating to study the relationship between the dollar (USD) US and prices for corn, soybeans, wheat and rice. Copulas with different structures and variables conditional dependence on the time dependence of the parameters ...
Mikel Ugando-Peñate +2 more
doaj
Plumage coloration in museum specimens of white-rumped swallow (Tachycineta leucorrhoa) [PDF]
, 2018 El género Tachycineta incluye nueve especies de golondrinas distribuidas a lo largode América con grandes diferencias en su sistema de apareamiento genético y en sus tasas depaternidad extra-pareja.
Ferretti, Valentina +1 more
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