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

open access: yesFrontiers in Physics, 2022
Socio-economic inequalities derived from an exhaustive wealth distribution is studied in a closed geographical region from Transylvania (Romania).
István Gere   +4 more
doaj   +1 more source

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

open access: yesJournal 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

open access: yesAGRISE, 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   +1 more
doaj   +1 more source

On the estimation of the Lorenz curve under complex sampling designs

open access: yes, 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   +5 more
core   +1 more source

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

open access: yesBMC 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   +4 more
doaj   +1 more source

A regression method for estimating Gini index by decile

open access: yesHumanities & 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

open access: yesAdvanced 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   +11 more
wiley   +1 more source

Double Helical Plasmonic Antennas

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Income inequality in Mashhad Bus Lines based on [PDF]

open access: yesمدلسازی 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   +2 more
doaj   +1 more source

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

open access: yesAdvanced 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   +10 more
wiley   +1 more source

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