Results 111 to 120 of about 63,666 (315)

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

GMM Estimation of Empirical Growth Models [PDF]

This paper highlights a problem in using the first-difference GMM panel data estimator cross-country growth regressions. When the time series are persistent, the first-differenced GMM estimator can be poorly behaved, since lagged levels of the series ...
Anke Hoeffler, Stephen Bond, Jonathan Temple   +2 more
core  

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

The Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani, Maria Pia Morigi, Matteo Bettuzzi, Monica Carosi   +3 more
wiley   +1 more source

The weak instrument problem of the system GMM estimator in dynamic panel data models [PDF]

The system GMM estimator for dynamic panel data models combines moment conditions for the model in first differences with moment conditions for the model in levels. It has been shown to improve on the GMM estimator in the first differenced model in terms
Frank Windmeijer, Maurice Bun
core  

Morphological plasticity in the dentition of the lungfish Gnathorhiza from the Permian of Brazil: A population‐level geometric morphometric analysis

The Anatomical Record, EarlyView.
Abstract Dental plates are pivotal in the lungfish paleontological record, constituting highly mineralized structures resilient to diagenetic processes. This study provides a detailed description and quantitative shape analysis of 95 newly discovered Gnathorhiza sp. dental plates from the Middle–Late Permian Corumbataí Formation, Brazil.
Mauro B. S. Lacerda, Gustavo H. N. Petreca, Gabriel E. B. de Barros, Ana Emilia Quezado, Marcelo A. Fernandes   +4 more
wiley   +1 more source

Tác động phi tuyến của tín dụng ngân hàng đến tăng trưởng kinh tế tại các quốc gia đang phát triển

Tạp chí Quản lý và Kinh tế Quốc tế, 2022
Bài viết đánh giá tác động phi tuyến của tín dụng ngân hàng đến tăng trưởng kinh tế tại các quốc gia đang phát triển. Dữ liệu nghiên cứu được thu thập trong giai đoạn 2000-2019 của 79 quốc gia được phân tích bằng phương pháp moment tổng quát hệ thống cho
Lê Hồng Ngọc, Hồ Thị Lam
doaj  

CEO power and bank risk nexus: Evidence from commercial banks in Uganda [PDF]

Risk Management Magazine
This study aimed to establish the nexus between CEO power and bank risk. Previous studies on how CEO power affects risk-taking have produced mixed results. Some studies show that CEO power reduces risk, while others show the reverse.
Richard Kajumbula , Patricia Lindelwa Makoni   +1 more
doaj   +1 more source

Small Sample Bias Propreties of the System GMM Estimator in Dynamic Panel Data Models [PDF]

This paper examines analytically and experimentally why the system GMM estimator in dynamic panel data models is less biased than the first differencing or the level estimators even though the former uses more instruments.
Kazuhiko Hayakawa
core  

Double‐Bundle Anterior Cruciate Ligament Reconstruction Provides Superior Short‐to‐Midterm Rotational Stability But Not Clinically Important Functional Gains Over Single‐Bundle: A Systematic Review and Meta‐analysis

Arthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To compare the biomechanical and functional outcomes between single‐bundle and double‐bundle (DB) anterior cruciate ligament reconstruction techniques using the most current evidence, stratified by follow‐up duration. Methods PubMed, Embase, and Cochrane databases were searched from 2013 to September 2025 for randomized controlled trials ...
Manuel Alberto Gutierrez‐Moreno, Luis Eduardo Arámbula‐Torres, Ramon Alonso Prieto‐Baeza, Carlos Leal‐Contreras, Cristina Alejandra Fuentes‐Flores, Edmundo Berumen‐Nafarrate   +5 more
wiley   +1 more source

EV charging load forecasting using an enhanced Monte Carlo simulation methods

Zhejiang dianli
To address the limitations of conventional Monte Carlo simulation methods in electric vehicle （EV） charging load forecasting—particularly their large probability distribution fitting errors and strong data randomness—this paper proposes an enhanced ...
LIU Ruilin, YU Yang, LIU Jun, LI Wei
doaj   +1 more source