Results 101 to 110 of about 16,351 (263)

Detecting heritable phenotypes without a model using fast permutation testing for heritability and set-tests

Nature Communications, 2018
Standard approaches for heritability and set testing in statistical genetics rely on parametric models that might not hold in reality and give inflated p-values.
Regev Schweiger, Eyal Fisher, Omer Weissbrod, Elior Rahmani, Martina Müller-Nurasyid, Sonja Kunze, Christian Gieger, Melanie Waldenberger, Saharon Rosset, Eran Halperin   +9 more
doaj   +1 more source

Corticosterone and Mitochondrial Efficiency Are Associated With Changes in DNA Oxidative Damage During an Acute Stress Response in Leach's Storm‐Petrels (Hydrobates leucorhous)

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The ability of organisms to effectively respond to challenges is critical for survival. We investigated how an acute stressor affected corticosterone, mitochondrial function, and DNA oxidative damage in a wild population of Leach's storm‐petrels (Hydrobates leucorhous).
Kayla E. Lichtner, Jack K. Dziubek, Nicole A. Joseph, Sarah E. Chapman, Tori J. Chace, Dongxiao Sun, Zachary T. Bitzer, Antoine Stier, Robert A. Mauck, Patricia L. Jones, Mark F. Haussmann   +10 more
wiley   +1 more source

Combating Farmland Degradation and Abandonment: The Rehabilitative Role of High‐Standard Farmland Construction in China

Land Degradation &Development, EarlyView.
ABSTRACT Farmland abandonment, driven by rapid urbanization and rural labor migration, has become a major catalyst for land degradation and threatens agricultural sustainability in China. While the High‐Standard Farmland Construction (HSFC) program was initiated to rehabilitate degraded soils and upgrade agricultural infrastructure, empirical evidence ...
Yahui Wang, Jinrong Yang, Qingyuan Yang
wiley   +1 more source

DSGE Estimation Using Generalized Empirical Likelihood and Generalized Minimum Contrast

Entropy
We investigate the performance of estimators of the generalized empirical likelihood and minimum contrast families in the estimation of dynamic stochastic general equilibrium models, with particular attention to the robustness properties under ...
Gilberto Boaretto, Márcio Poletti Laurini   +1 more
doaj   +1 more source

Are Academic Executives Greener? Evidence From China

Managerial and Decision Economics, EarlyView.
ABSTRACT This paper investigates the impact of executives with academic backgrounds (“academic executives”) on corporate green patents. We find that both the presence of academic executives and the proportion of academic executives have a significantly positive impact on firms' green patents, and this effect is positively associated with the firm's ...
Kai Xing, Xiong Li, Ping Liu, Hanxiong Zhang, Yuhan Xiao   +4 more
wiley   +1 more source

Investigating item complexity as a source of cross-national DIF in TIMSS math and science

Large-scale Assessments in Education
Background Large scale international assessments depend on invariance of measurement across countries. An important consideration when observing cross-national differential item functioning (DIF) is whether the DIF actually reflects a source of bias, or ...
Qi Huang, Daniel M. Bolt, Weicong Lyu
doaj   +1 more source

Optimal Designs and Inspection Time Decisions for Gamma Accelerated Degradation Tests

Naval Research Logistics (NRL), EarlyView.
ABSTRACT This study analytically derives optimal designs for gamma accelerated degradation tests while incorporating inspection time as a design variable under both D‐ and V‐optimality criteria. Under D‐optimality, we prove that the optimal design allocates test units exclusively to the lowest and highest stress levels and adopts the longest inspection
Hung‐Ping Tung, I‐Chen Lee
wiley   +1 more source

A Cautionary Tale of Model Misspecification and Identifiability

Bulletin of Mathematical Biology
Mathematical models are routinely applied to interpret biological data, with common goals that include both prediction and parameter estimation. A challenge in mathematical biology, in particular, is that models are often complex and non-identifiable, while data are limited.
Alexander P. Browning, Jennifer A. Flegg, Ryan J. Murphy   +2 more
openaire   +3 more sources

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

Using recurrent neural network to estimate irreducible stochasticity in human choice behavior

eLife
Theoretical computational models are widely used to describe latent cognitive processes. However, these models do not equally explain data across participants, with some individuals showing a bigger predictive gap than others.
Yoav Ger, Moni Shahar, Nitzan Shahar
doaj   +1 more source