Results 71 to 80 of about 18,590 (217)

Bayesian Multivariate Two‐Stage Volatility‐Return Models (MTS‐VR)

Journal of Forecasting, EarlyView.
ABSTRACT This paper develops a class of models to capture the joint dynamics of asset returns and multivariate volatility. Owing to its two‐stage construction, this class is referred to as the multivariate two‐stage volatility‐return (MTS‐VR) model.
Zhenglyu Huang, Jennifer S. K. Chan, Gareth W. Peters   +2 more
wiley   +1 more source

Modelling of diameter distributions of Douglas (Pseudotsuga menziesii (Mirb.) Franco) stands

İstanbul Üniversitesi Orman Fakültesi Dergisi, 2016
In this study, Diameter distributions of Amance and Vallombrosa origin stands of Douglas were intendent modelling with two parameter Weibull probability density function having shape and scale parameters for different age periods.
Gafura Aylak Özdemir
doaj   +1 more source

Estimation of Subtype‐Specific Tumour Growth Rate Distributions and Interval Cancer Proportions in Breast Cancer Using Biology‐Inspired Natural History Models

International Journal of Cancer, EarlyView.
ABSTRACT Breast cancer progression varies across molecular subtypes, influencing detection rates and prognosis. Differences in the proportion of interval cancers (PIC)—cancers detected symptomatically between scheduled screening rounds—have been observed across subtypes, likely reflecting heterogeneity in tumour growth dynamics. We applied a continuous‐
Letizia Orsini, Yuqi Zhang, Kamila Czene, Keith Humphreys   +3 more
wiley   +1 more source

Risk Forecasting in Shipping Exchange‐Traded‐Fund (ETF) Markets

International Journal of Finance &Economics, EarlyView.
ABSTRACT This article examines the risk properties of freight‐derivative‐based exchange‐traded funds (ETFs), focusing on the Breakwave Dry Bulk Shipping ETF (BDRY), and evaluates the accuracy of Value‐at‐Risk (VaR) and Expected Shortfall (ES) forecasts across a range of econometric models.
Christos Katris, Manolis G. Kavussanos, Stergiani (Stella) A. Moysiadou   +2 more
wiley   +1 more source

A unified exponential-H family for modeling real-life data: Properties and inference

Heliyon
The exponential distribution is one of the most widely used statistical distribution for reliability issues. In this paper, we introduce a novel family based on the exponential model, called the new exponential-H (NEx-H) family. The sub-models of the NEx-
Farrukh Jamal, Mohammed Alqawba, Yasser Altayab, Tariq Iqbal, Ahmed Z. Afify   +4 more
doaj   +1 more source

Construction and Application of a Novel C‐Vine Copula‐Based Multi‐Variate Ecological Drought Index

Irrigation and Drainage, EarlyView.
ABSTRACT A comprehensive ecological drought index capturing vegetation growth conditions and meteorological–hydrological variability is essential for assessing ecological drought and optimizing water resource management. This study selected soil moisture (SM), actual evapotranspiration (ET), land surface temperature (LST) and leaf area index (LAI) to ...
Haofei Zhang, Xingye Han, Zhijun Wu
wiley   +1 more source

Intergenerational transmission of anxiety: A comparison of transdiagnostic and disorder‐specific pathways

JCPP Advances, EarlyView.
Abstract Background Individuals with a parental history of anxiety disorders are at risk of developing an anxiety disorder. Prior studies have focused on the transmission of specific anxiety disorders across generations (i.e., disorder‐specific transmission), often overlooking the possibility that a general tendency to develop various forms of anxiety ...
Hyunsik Kim, Lifang Pan, Ardesheer Talati, Marc J. Gameroff, Myrna M. Weissman, Helen Blair Simpson   +5 more
wiley   +1 more source

Compound Meteorological and Hydrological Hot‐Dry and Hot‐Wet Extremes Over Global Land Areas: Spatiotemporal Changes, Attribution, and Drivers

International Journal of Climatology, EarlyView.
The changes in joint return period of compound meteorological hot‐dry (CMHHE) and hot‐wet (CMHWE) and compound hydrological hot‐dry (CHHDE) and hot‐wet (CHHWE) extremes were attributed to changes in associated univariate extremes and their dependence.
Ruting Yang, Silong Zhang, Xiongpeng Tang, Chao Gao, Haibin Zhang, Xin Yin, Yanli Liu   +6 more
wiley   +1 more source

Survival of individuals with neurological and oncological diseases receiving home enteral nutrition: A descriptive cohort study

Journal of Parenteral and Enteral Nutrition, EarlyView.
Abstract Introduction Home enteral nutrition is mainly indicated for individuals with neurological or oncological diseases. However, few studies have evaluated survival in this population in low‐ and middle‐income countries. Objective To investigate factors influencing survival in individuals receiving home enteral nutrition and to identify variables ...
Giuliane de Matos Wrobel, Cesar Augusto Taconeli, Rubia Daniela Thieme, Maria Eliana Madalozzo Schieferdecker   +3 more
wiley   +1 more source

Particle‐Scale Mechanics of a Regolith‐Type Soil

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The existing studies have reported that the surface of Mars shows the presence of materials having igneous origin, including basalt and regolith‐type coarse soils. These findings are affected by significant uncertainties and, therefore, the selection of simulants for various exploration applications, including surface mobility of rovers ...
Vincenzo Nardelli, Chencheng Wang, Matthew Richard Coop   +2 more
wiley   +1 more source