Results 61 to 70 of about 6,303 (265)

Food Tastes in the United States: Convergence or Divergence?

open access: yesAgribusiness, EarlyView.
ABSTRACT This study investigates how food consumption tastes have changed in recent decades across the United States. Using NielsenIQ data for over 77 million transactions, there is evidence of divergence in food tastes across regions from 2007 to 2016 and across households of different income, education, and race/ethnicity groups.
Michael DeDad
wiley   +1 more source

The Inequalities for Quasiarithmetic Means

open access: yesAbstract and Applied Analysis, 2012
Overview and refinements of the results are given for discrete, integral, functional and operator variants of inequalities for quasiarithmetic means. The general results are applied to further refinements of the power means.
Jadranka Mićić   +2 more
doaj   +1 more source

On an operator inequality

open access: yesLinear Algebra and its Applications, 2000
\textit{F. Hansen} [Proc. Am. Math. Soc. 125, No. 7, 2093-2102 (1997; Zbl 0870.47013)] gave a characterization of operator convex functions in terms of Jensen's operator inequality. Following investigations by \textit{S. Friedland} and \textit{M. Katz} [Linear Algebra Appl. 85, 185-190 (1987; Zbl 0612.15010)], the author presents a simple proof of this
openaire   +1 more source

The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa

open access: yesAgribusiness, EarlyView.
ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor   +3 more
wiley   +1 more source

A-numerical radius inequalities for operator matrices in semi-Hilbertian spaces

open access: yesJournal of Inequalities and Applications
This paper improves a well-known inequality in the literature by introducing new A-numerical radius inequalities for 2 × 2 $2\times 2$ operator matrices.
Fuad Kittaneh   +2 more
doaj   +1 more source

Some results on quantum Hahn integral inequalities

open access: yesJournal of Inequalities and Applications, 2019
In this paper the quantum Hahn difference operator and the quantum Hahn integral operator are defined via the quantum shift operator Φqθ(t)=qt+(1−q)θ $_{\theta }\varPhi _{q}(t)=qt+(1-q)\theta $, t∈[a,b] $t\in [a,b]$, θ=ω/(1−q)+a $\theta = \omega /(1-q)+a$
Suphawat Asawasamrit   +3 more
doaj   +1 more source

Do More Open Economies Export Less Diversely in Brazilian Agribusiness?

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper asks whether municipalities with a larger export‐to‐revenue ratio display a more concentrated bundle of exported goods in Brazilian agribusiness. Recent advances in export imputation for Brazilian municipalities allow for an analysis of the concentration profile of each municipality and its association with export openness.
Alan Leal, Michelle Marcia Viana Martins
wiley   +1 more source

Some Sharp L^2 Inequalities for Dirac Type Operators

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We use the spectra of Dirac type operators on the sphere $S^n$ to produce sharp $L^2$ inequalities on the sphere. These operators include the Dirac operator on $S^n$, the conformal Laplacian and Paenitz operator.
Alexander Balinsky, John Ryan
doaj  

New midpoint-type inequalities in the context of the proportional Caputo-hybrid operator

open access: yesJournal of Inequalities and Applications
Fractional calculus is a crucial foundation in mathematics and applied sciences, serving as an extremely valuable tool. Besides, the new hybrid fractional operator, which combines proportional and Caputo operators, offers better applications in numerous ...
İzzettin Demir, Tuba Tunç
doaj   +1 more source

Inequalities for Eigenvalues of Selfadjoint Operators [PDF]

open access: yesTransactions of the American Mathematical Society, 1990
We establish several inequalities for eigenvalues of selfadjoint operators in Hilbert space. The results are quite general. In particular, let Ω
openaire   +2 more sources

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