Results 11 to 20 of about 967 (90)

Discussion: Jackknife, Bootstrap and Other Resampling Methods in Regression Analysis

The Annals of Statistics, 1986
Wynn, H. P., Ogbonmwan, S. M.
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Uncertainty Quantification for Cardiac Diffusion Tensor Imaging Without Additional Datasets

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1458-1463, September 2026.
ABSTRACT Purpose Cardiac diffusion tensor imaging (cDTI) is subject to physiological noise, thermal noise, and signal corruption, which cause errors in diffusion measures. While a larger dataset can be decimated to investigate the general precision of measures from fitting smaller datasets, uncertainty quantification (UQ) methods for fitting entire ...
Sam Coveney, Irvin Teh, May Lwin, Mehak Asad, Isaac Watson, Maryam Afzali, Erica Dall'Armellina, Jürgen E. Schneider   +7 more
wiley   +1 more source

Rethinking areas of endemism and barriers: perspectives for a causal historical biogeography and a critique of Schultz and Cracraft (2024)

Cladistics, Volume 42, Issue 4, Page 401-412, August 2026.
Abstract Historical biogeography faces a persistent conceptual and methodological dilemma concerning the nature of its central analytical units. Using the recent proposal by Schultz and Cracraft (Cladistics 40, 653) as a catalyst, this article critiques the argument that causal inference necessitates the replacement of areas of endemism with barriers ...
Augusto Ferrari
wiley   +1 more source

The Surprising Bias of PPML Estimates of Structural Gravity Models With Two‐Way Fixed Effects

Review of International Economics, Volume 34, Issue 3, Page 615-631, August 2026.
ABSTRACT The previous literature has shown that the Poisson Pseudo‐Maximum Likelihood (PPML) estimator provides consistent and asymptotically unbiased estimates of the parameters of structural gravity models with two‐way fixed effects, although their standard errors need correction.
Ben Shepherd, Tom Zylkin
wiley   +1 more source

Paleosecular Variation Constraints on Geomagnetic Field Morphology at ca. 1100 Ma

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Paleosecular variation provides a statistical test of long‐term geomagnetic field morphology, but its behavior across Precambrian polarity regimes remains poorly constrained. We compile a virtual geomagnetic pole dispersion data set spanning 1130–1070 Ma and apply nonlinear Model G fitting to evaluate field structure across the interval ...
Hanqing Zhao, Shihong Zhang, Jikai Ding, Qiang Ren, Haiyan Li, Weiwei Bian, Tianshui Yang, Huaichun Wu   +7 more
wiley   +1 more source

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, Volume 14, Issue 25, 3 July 2026.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

Advanced Science, Volume 13, Issue 42, 28 July 2026.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao, Ruixue Nie, Hailu Fan, Tenzin Ngodroup, Li Zhu, Hongbin Pan, Bo Zhang, Hao Zhang   +7 more
wiley   +1 more source

Population Genetic Structure and Biogeographic Distribution of Tropical Halodule uninervis in the Bohol Sea and Adjacent Waters in the Philippines

Ecology and Evolution, Volume 16, Issue 5, May 2026.
Genome‐wide SNP markers reveal patterns of genetic structure and connectivity among Halodule uninervis populations across the Bohol Sea. Migration rates (≥ 0.025 and ≤ 0.040) indicate asymmetric gene flow and heterogeneous connectivity, suggesting a semi‐connected metapopulation shaped by clonal reproduction and regional oceanographic circulation ...
Angela Grace E. Singson, Koji Takayama, Yoshihisa Suyama, Naoko Ishikawa, Shoki Murakami, Venus E. Leopardas, Nonillon M. Aspe, Wilfredo H. Uy, Lilibeth P. Coronel, Dan M. Arriesgado, Ruby C. Gonzales   +10 more
wiley   +1 more source

Stature Estimation From Long Bone Lengths in Archaeological Skeletal Samples: Sensitivity of Regression Fit to Variation in the Correlation Coefficient

International Journal of Osteoarchaeology, Volume 36, Issue 3, Page 812-826, May/June 2026.
ABSTRACT Stature estimation from long bone lengths yields varying accuracies due to differences in linear regression fit. We evaluated the impact of the correlation between stature and humeral, femoral, and tibial lengths on the performance of ordinary least squares (OLS), major axis (MA), and reduced major axis (RMA) fits.
Vladimír Sládek, Erik Mitro, Martin Hora, Michal Struška   +3 more
wiley   +1 more source

A Scalable Framework for Comprehensive Typing of Polymorphic Immune Genes from Long‐Read Data

Advanced Science, Volume 13, Issue 22, 17 April 2026.
SpecImmune introduces a unified computational framework optimized for long‐read sequencing to resolve over 400 highly polymorphic immune genes. This scalable approach achieves high‐resolution typing, enabling the discovery of cross‐family co‐evolutionary networks and population‐specific diversity.
Shuai Wang, Xuedong Wang, Mengyao Wang, Qian Zhou, Lusheng Wang, Shuai Cheng Li   +5 more
wiley   +1 more source