Results 131 to 140 of about 74,849 (301)

Bernstein's inequality for multivariate polynomials on the standard simplex

open access: yesJournal of Inequalities and Applications, 2005
The classical Bernstein pointwise estimate of the (first) derivative of a univariate algebraic polynomial on an interval has natural extensions to the multivariate setting.
Révész Szilárd Gy   +1 more
doaj  

A parallel Discrete Element Method to model collisions between non-convex particles

open access: yesEPJ Web of Conferences, 2017
In many dry granular and suspension flow configurations, particles can be highly non-spherical. It is now well established in the literature that particle shape affects the flow dynamics or the microstructure of the particles assembly in assorted ways as
Rakotonirina Andriarimina Daniel   +2 more
doaj   +1 more source

On the Algebra of Intervals and Convex Bodies

open access: yesJ. Univers. Comput. Sci., 1998
JUCS - Journal of Universal Computer Science Volume Nr.
openaire   +2 more sources

Foreign labor, peer‐networking and agricultural efficiency in the Italian dairy sector

open access: yesAgribusiness, EarlyView.
Abstract While the presence of immigrants in the agricultural sector is widely acknowledged, the empirical evidence on its economic consequences is lacking, especially from a microeconomic perspective. Using the Farm Accountancy Data Network panel data for Italian dairy farms in the period 2008–2018, the present study investigates the relationship ...
Federico Antonioli   +2 more
wiley   +1 more source

Convex Bodies with Equipotential Circles

open access: yesThe American Mathematical Monthly
Given a convex body $K\subset \mathbb R^2$ we say that a circle $Ω\subset \text{int} \ K$ is an equipotential circle if every tangent line of $Ω$ cuts a chord $AB$ in $K$ such that for the contact point $P=Ω\cap AB$ it holds that $|AP|\cdot|PB|=λ$, for a suitable constant number $λ$.
Iván González-García   +3 more
openaire   +2 more sources

Is There a Market for Organic Milk in Serbia? Insights From Integrated Choice and Latent Variable Model

open access: yesAgribusiness, EarlyView.
ABSTRACT Past growth in the global organic market has been concentrated in high‐income countries, while in middle‐income countries such as Serbia the organic market remains nascent and characterized by a sparse assortment of organic products, high retail premia and limited evidence on consumer preferences and their drivers.
Milan Tatic   +3 more
wiley   +1 more source

The unrestricted blocking number in convex geometry

open access: yes, 2010
Let K be a convex body in \mathbb{R}^n. We say that a set of translates \left \{ K + \underline{u}_i \right \}_{i=1}^{p} block K if any other translate of K which touches K, overlaps one of K + \underline{u}_i, i = 1, . . . , p.
Sezgin, S.
core  

Prognostic Significance of Portal Vein Tumor Thrombus in Pancreatic Ductal Adenocarcinoma Treated With Chemoradiotherapy

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Aim To examine the significance of portal vein tumor thrombus (PVTT) as a prognostic factor for patients with pancreatic ductal adenocarcinoma (PDAC) treated with chemoradiotherapy (CRT) followed by surgery. Methods The study retrospectively examined 313 patients with borderline resectable (BR) or locally advanced (LA) PDAC who underwent CRT ...
Aoi Hayasaki   +9 more
wiley   +1 more source

Transversal numbers of translates of a convex body

open access: yes, 2006
Let F be a family of translates of a fixed convex set M in Rn. Let τ(F) and ν(F) denote the transversal number and the independence number of F, respectively. We show that ν(F)⩽τ(F)⩽8ν(F)-5 for n=2 and τ(F)⩽2n-1nnν(F) for n⩾3.
Kim, Seog-Jin   +3 more
core   +1 more source

Macrophage Phenotype Detection Methodology on Textured Surfaces via Nuclear Morphology Using Machine Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
A novel machine learning approach classifies macrophage phenotypes with up to 98% accuracy using only nuclear morphology from DAPI‐stained images. Bypassing traditional surface markers, the method proves robust even on complex textured biomaterial surfaces. It offers a simpler, faster alternative for studying macrophage behavior in various experimental
Oleh Mezhenskyi   +5 more
wiley   +1 more source

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