Results 31 to 40 of about 91,209 (340)

Wealth Distribution in Villages. Transition From Socialism to Capitalism in View of Exhaustive Wealth Data and a Master Equation Approach

Frontiers in Physics, 2022
Socio-economic inequalities derived from an exhaustive wealth distribution is studied in a closed geographical region from Transylvania (Romania).
István Gere, Szabolcs Kelemen, Tamás S. Biró, Tamás S. Biró, Zoltán Néda   +4 more
doaj   +1 more source

Asymptotic Behaviors of the Lorenz Curve for Left Truncated and Dependent Data [PDF]

Journal of Sciences, Islamic Republic of Iran, 2012
The purpose of this paper is to provide some asymptotic results for nonparametric estimator of the Lorenz curve and Lorenz process for the case in which data are assumed to be strong mixing subject to random left truncation.
M. Bolbolian Ghalibaf
doaj  

DEMAND AND MARKET CONCENTRATION FOR BRANDED SAUSAGE ROLLS IN OYO STATE, NIGERIA

AGRISE, 2022
Branded sausage is one of the fast foods, and the demand for it in Nigeria is increasing substantially due to growing household affluence and its availability and affordability. The study examined the market concentration and the need for branded sausage
Adejoke Modinat Adedeji, Fatai Abiola Sowunmi   +1 more
doaj   +1 more source

On the estimation of the Lorenz curve under complex sampling designs

, 2018
This paper focuses on the estimation of the concentration curve of a finite population, when data are collected according to a complex sampling design with different inclusion probabilities.
Conti, Pier Luigi, Di Iorio, Alberto, Guandalini, Alessio, Marella, Daniela, Vicard, Paola, Vitale, Vincenzina   +5 more
core   +1 more source

Use of power-law analysis to predict abuse or diversion of prescribed medications: proof-of-concept mathematical exploration

BMC Research Notes, 2018
Objective To conduct a proof-of-concept study comparing Lorenz-curve analysis (LCA) with power-law (exponential function) analysis (PLA), by applying segmented regression modeling to 1-year prescription claims data for three medications—alprazolam ...
Kathleen A. Fairman, Alyssa M. Peckham, Michael L. Rucker, Jonah H. Rucker, David A. Sclar   +4 more
doaj   +1 more source

A regression method for estimating Gini index by decile

Humanities & Social Sciences Communications
Based on the three-parametric Lorenz curve proposed by Kakwani (1980), this paper builds a multiple linear regression model to estimate the parameters by the weighted least square method named the regression method. Using the Lorenz curve, the Gini index
Xiaobo Shen, Pingsheng Dai
doaj   +1 more source

Al1‐xScxN‐Based Ferroelectric Domain‐Wall Memristors

Advanced Functional Materials, EarlyView.
(a) Conductive atomic force microscopy (CAFM) image of the initial state bidomain structure of the Al0.85Sc0.15N (a) showing an enhanced conductivity of the head‐to‐head domain boundary. (b) CAFM image of the same area after application of several −65 V, 1 s voltage pulses showing lower conductivity of the generated tail‐to‐tail domain walls.
Haidong Lu, Georg Schönweger, Niklas Wolff, Ziming Ding, Adrian Petraru, Isabel Streicher, Hermann Kohlstedt, Christian Kübel, Stefano Leone, Lorenz Kienle, Simon Fichtner, Alexei Gruverman   +11 more
wiley   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Income inequality in Mashhad Bus Lines based on [PDF]

مدلسازی اقتصادسنجی, 2014
Several indexes and measures have been introduced in the field of economic inequality. Zenga in 2007 introduce a new index which as an alternative to the Gini coefficient.
Seyed Jamal Khorashadizade, Gholam Reza Mohtashami Borzadaran, Hadis Pouresmaeili   +2 more
doaj   +1 more source

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

Advanced Materials, EarlyView.
We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar, Viet Tran, Pascal Bassène, Atoumane Ndiaye, Julie Barringer, Jie Jiang, Wonsuk Cha, Ross Harder, Jian Shi, Moussa N'Gom, Edwin Fohtung   +10 more
wiley   +1 more source