Results 61 to 70 of about 10,097 (263)

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

Brazil’s Daily Precipitation Concentration Index (CI) Using Alternative Fitting Equation and Ensemble Data

Hydrology
In recent years, precipitation concentration indices have become popular, and the daily precipitation concentration index has been widely used worldwide. This index is based on the Lorenz curve fitting.
Gerardo Núñez-González
doaj   +1 more source

Early synovial regulatory T cell engagement in posttraumatic osteoarthritis

Arthritis &Rheumatology, Accepted Article.
Objective Posttraumatic osteoarthritis (PTOA) develops despite restoration of joint biomechanics, suggesting that early post‐injury biological processes within the synovium shape disease trajectories. We investigated whether synovial regulatory T (Treg) cells are engaged during the early phase following joint injury and whether experimental enrichment ...
Xueyou Zhang, Mingde Cao, Jianting Li, Bruma Sai‐Chuen Fu, Michael Tim‐Yun Ong, Patrick Shu‐Hang Yung   +5 more
wiley   +1 more source

Application of Space Lorenz Curve in Land-use and Its Changes——A Case Study of Chengguan District of Lhasa,Tibet

Shuitu baochi yanjiu, 2010
At present,scholars tend to use many kinds of index models to study land-use,this article attempts to adopt a new approach-space Lorenz curve-to display the distribution of land-use and its changes more intuitive and more concisely.In this paper,remote ...
LIU Min-hong1, HE Zheng-wei1, JIANG Lan1, QIU Wen-xia1, ZHANG Chuan-hong1   +4 more
doaj  

Concepts of Reliability Theory and Their Relationship with the Economic Inequality indicators

پژوهش‌های ریاضی, 2020
Introduction    One of ‎the ‎intersecting aspects of the reliability theory and economics is investigating non-negative data generally skewed‎ ‎(lifetimes and income)‎, ‎extrapolation of a suitable model for the data and finding their characteristics ...
Zahra Behdani, Gholam Reza Mohtashami Borzadaran, Bahram Sadeghpour   +2 more
doaj  

Comparative analysis of parametric Lorenz curves and alternative convex models with isotonic regression for estimating the Lorenz curve [PDF]

Journal of Mahani Mathematical Research
This study develops a systematic comparative framework for estimating Lorenz curves and Gini coefficients, addressing key methodological gaps in measuring income inequality.
Zahra Behdani
doaj   +1 more source

Initial treatment strategies and outcomes across haemodynamic thresholds and risk stratification in incident systemic sclerosis–associated pulmonary arterial hypertension: a EUSTAR analysis

Arthritis &Rheumatology, Accepted Article.
Objective Real‐world initial treatment strategies in SSc‐PAH remain incompletely described. We aimed to characterise these strategies across haemodynamic thresholds and risk strata and evaluate outcome associations. Methods We analysed treatment‐naïve SSc‐PAH patients in EUSTAR (2000–2021) fulfilling the 2022 haemodynamic definition.
Hilde Jenssen Bjørkekjær, Cosimo Bruni, Kaspar Broch, Cathrine Brunborg, Patricia E Carreira, Paolo Airò, Carmen Pilar Simeón‐Aznar, Marie‐Elise Truchetet, Alessandro Giollo, Alexandra Balbir‐Gurman, Mickael Martin, Christopher P Denton, Armando Gabrielli, Francesco Del Galdo, Madelon C. Vonk, Håvard Fretheim, Helle Bitter, Øyvind Midtvedt, Arne K. Andreassen, Sverre Høie, Yoshiya Tanaka, Gabriela Riemekasten, Ulf Müller‐Ladner, Marco Matucci‐Cerinic, Ivan Castellví, Elise Siegert, Eric Hachulla, Øyvind Molberg, Oliver Distler, Anna‐Maria Hoffmann‐Vold, on behalf of the EUSTAR collaborators   +30 more
wiley   +1 more source

Any old Tom, Dick, or Harry: The citation impact of author first name genderedness

Journal of the Association for Information Science and Technology, EarlyView.
Abstract This paper examines the relationship between the genderedness of authors' first names and citation distributions in US‐affiliated scholarly production from 2010 to 2019. Merging a first name genderedness table derived from Wikidata with Web of Science publication data, we develop a relative distributional framework that compares first name ...
Maxime Holmberg Sainte‐Marie, Vincent Larivière   +1 more
wiley   +1 more source

A General Workflow for Tangential Flow Filtration Perfusion Scale‐Up

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Tangential flow filtration (TFF) perfusion using hollow‐fiber modules offers substantial advantages over other mammalian cell retention technologies. Recently, increased awareness of Starling flow has helped to enhance filtration performance to similar, or even higher levels compared to alternative technologies.
Patrick Romann, Ken Lee, Venkatesh Natarajan, Daniel Ley, Claes Nymand Nilsson, David Garcia‐Munzer, Dominik Schieman, Mahbod Hajighasemi, Alex Zaytsev, Jason Friedman, Loic Chappuis, Tobias Habicher, Colin Jaques, Alex Cohen, Matthew Gagnon, Edward Chan, Daniel J. Karst, Philip Giller, Antony Sibilia, Andrew L. Zydney, Thomas K. Villiger   +20 more
wiley   +1 more source

Estimation of the Gini coefficient based on two quantiles.

PLoS ONE
Based on the Palma proposition and the Lorenz fitting curve, this paper estimates the sample Gini coefficient using the income share of the top 10% and bottom 40% of the population.
Pingsheng Dai, Sitong Shen
doaj   +1 more source