Results 71 to 80 of about 50,310 (297)

Solid State Self‐Assembly of an Extended Curved‐Arm Nickel(II) Macrocycle with Fullerene C60

open access: yesChemistry – An Asian Journal, Volume 20, Issue 6, March 17, 2025.
Three co‐crystalline structures that contain fullerene C60 and (5,14‐dihydro‐6,8,15,17‐tetrabenzyl‐2,3,11,12‐tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclotetradecine)nickel(II) show the formation discrete one‐dimensional hollow channels as a results of 1 : 1 interplay and 1 : 2 dimeric interplay with the fullerenes arranged in hexagonal arrays ...
Irene Ling   +4 more
wiley   +1 more source

An Explicit Formula for Bernoulli Numbers in Terms of Stirling Numbers of the Second Kind [PDF]

open access: yes, 2014
In the paper, the authors recover an explicit formula for computing Bernoulli numbers in terms of Stirling numbers of the second kind.
Feng Qi (祁锋)
semanticscholar   +1 more source

Regional Shopping Objectives in British Grocery Retail Transactions Using Segmented Topic Models

open access: yesApplied Stochastic Models in Business and Industry, EarlyView.
ABSTRACT Understanding the customer behaviours behind transactional data has high commercial value in the grocery retail industry. Customers generate millions of transactions every day, choosing and buying products to satisfy specific shopping needs.
Mariflor Vega Carrasco   +4 more
wiley   +1 more source

Boolean complexes for Ferrers graphs [PDF]

open access: yes, 2010
In this paper we provide an explicit formula for calculating the boolean number of a Ferrers graph. By previous work of the last two authors, this determines the homotopy type of the boolean complex of the graph. Specializing to staircase shapes, we show
Claesson, Anders   +3 more
core   +2 more sources

A note on stirling numbers of the second kind

open access: yesJournal of Combinatorial Theory, 1968
AbstractFor fixed n, Stirling numbers of the second kind, S(n,r) have a single maximum.
openaire   +2 more sources

One‐Step Electrodeposition of Iron Oxyhydroxide Onto 3D Porous Graphene Substrates for on Chip Asymmetric Micro‐Supercapacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
A micro‐supercapacitor with electrodeposited iron oxyhydroxide (FeOOH) as the negative electrode and birnessite manganese oxide (MnO2) as the positive electrode achieves a 2 V working voltage, stable cycling in an aqueous electrolyte, and high energy and power densities of 21 μWh cm‐2 and 2.5 mW cm‐2 respectively.
Filipe Braga   +6 more
wiley   +1 more source

Exploring the landscape of GenAI and education literature: A taxonomy of themes and sub‐themes

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The research landscape surrounding Generative Artificial Intelligence (GenAI) and education is rapidly expanding, characterised by a dynamic array of themes and sub‐themes. This paper aims to construct a comprehensive taxonomy that categorises the current literature on the integration of GenAI in educational settings.
Sam Clarke
wiley   +1 more source

Rational Convolution Roots of Isobaric Polynomials [PDF]

open access: yes, 2015
In this paper, we exhibit two matrix representations of the rational roots of generalized Fibonacci polynomials (GFPs) under convolution product, in terms of determinants and permanents, respectively.
Conci, Aura   +2 more
core  

How Cooperatives Embed Circularity in Their Business Models and Governance—Results From an International Survey

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Cooperatives as a democratic form of economic organization are an emerging focus in research on the social dimensions of circular economy. However, there is no international database on cooperatives and circular economy, impeding systematic analysis.
Rafael Ziegler   +6 more
wiley   +1 more source

The porous medium equation: Large deviations and gradient flow with degenerate and unbounded diffusion

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract The problem of deriving a gradient flow structure for the porous medium equation which is thermodynamic, in that it arises from the large deviations of some microscopic particle system is studied. To this end, a rescaled zero‐range process with jump rate g(k)=kα,α>1$g(k)=k^\alpha, \alpha >1$ is considered, and its hydrodynamic limit and ...
Benjamin Gess, Daniel Heydecker
wiley   +1 more source

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