Results 51 to 60 of about 9,234 (266)

First‐Principles Investigation of the Electronic, Phonon, Optical, and Elastic Properties of AgBiTeSe

Advanced Physics Research, EarlyView.
This study presents a first‐principles investigation of the electronic, vibrational, optical, and elastic properties of AgBiTeSe. The results highlight its metallic behavior, dynamic stability, strong optical absorption, and promising thermoelectric potential.
Nilufer Yesmin Tanisa, Munshi H. M. Rahat, Sayed Bony Amin, Md. Karimul Islam   +3 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

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  

Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection

The Anatomical Record, EarlyView.
Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson, Pierre Frémondière, Kaspar Staub, Philipp Mitteroecker, Barbara Fischer, Martin Haeusler, Nicole M. Webb   +6 more
wiley   +1 more source

Study on characterization of interlayer heterogeneity in commingling production reservoirs

Youqi dizhi yu caishoulu
Accurate characterization of interlayer heterogeneity is the key to solving the problem of severe interlayer disturbances caused by large well sections in commingling production reservoir.
WANG Zuochen, LIU Huiqing, SUN Zhiguo, WANG Yuejie, LUO Chen, PAN Yue   +5 more
doaj   +1 more source

Structural Convergence in European Union [PDF]

Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2012
Estimating structural convergence is a relatively recent topic in specialised literature. Based on the Solow theory of economic growth by stages and on empirical data for European Union we estimated a model to simulate structural changes.
Lucian-Liviu Albu
doaj  

The chi-square statistic as an income inequality index [PDF]

AUT Journal of Mathematics and Computing
This article presents a novel concept known as the chi-square inequality index, developed through the utilization of the chi-square distance function.
Shahryar Mirzaei, Seyed Mahdi Amir Jahanshahi   +1 more
doaj   +1 more source

Quantile versions of the Lorenz curve

Electronic Journal of Statistics, 2016
The classical Lorenz curve is often used to depict inequality in a population of incomes, and the associated Gini coefficient is relied upon to make comparisons between different countries and other groups. The sample estimates of these moment-based concepts are sensitive to outliers and so we investigate the extent to which quantile-based definitions ...
Prendergast, Luke A., Staudte, Robert G.
openaire   +4 more sources

Inosine triphosphate pyrophosphatase activity as a potential predictor of methotrexate remission in juvenile idiopathic arthritis

Arthritis &Rheumatology, Accepted Article.
Background Methotrexate (MTX) is the first‐line therapy for juvenile idiopathic arthritis (JIA), but up to 40% of patients don't respond. Low inosine‐triphosphate‐pyrophosphatase (ITPA) activity has been associated with reduced clinical remission. We investigated ITPA role and the underlying mechanisms in vitro.
Sofia Sindici Forgiarini, Marianna Lucafò, Debora Curci, Davide Selvestrel, Valentina Moressa, Sofia Pagarin, Barbara Bellich, Martina Franzin, Alberto Tommasini, Mara L. Becker, Laura B. Ramsey, Susan D. Thompson, Carl D. Langefeld, Federica Corba, Edoardo Marrani, Gabriele Simonini, Gabriele Stocco, Giuliana Decorti, Andrea Taddio, Serena Pastore   +19 more
wiley   +1 more source

Strassen's LIL for the Lorenz Curve

Journal of Multivariate Analysis, 1996
The authors prove Strassen's law of the iterated logarithm for the Lorenz process assuming that the underlying d.f. \(F\) and its inverse \(F^{-1}\) are continuous and the moment \(EX^{2+u}\) is finite for some \(u>0\). Previously, the first author, \textit{S. Csörgö} and \textit{L.
Csörgő, Miklós, Zitikis, Ricardas
openaire   +1 more source