Results 71 to 80 of about 70,780 (208)

Agrárpiaci Jelentések Gabona és ipari növények [PDF]

open access: yes, 2011
Source at https://journalofmathematicsandculture.wordpress.com/2017/12/28/journal-of-mathematics-and-culture-volume-11-number-4/.A group of Sámi middle school mathematics teachers cooperated with researchers over a period of three years in investigating
Børresen, Tove   +7 more
core   +1 more source

Characterizations and algorithms for generalized Cops and Robbers games [PDF]

open access: yes, 2016
We propose a definition of generalized Cops and Robbers games where there are two players, the Pursuer and the Evader, who each move via prescribed rules.
Bonato, Anthony, MacGillivray, Gary
core   +4 more sources

On Regular Quaternary Hadamard Matrices

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT Through the use of regularizing vectors, all regular quaternary Hadamard matrices of orders 10 and 18 have been successfully identified. Of these, two matrices of order 10 and 184 matrices of order 18 were found to have unbiased mates. Converting the quaternary Hadamard matrices of order 18 to real Hadamard matrices, the study uncovered that ...
Hadi Kharaghani   +2 more
wiley   +1 more source

Extended Rate, more GFUN [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We present a software package that guesses formulas for sequences of, for example, rational numbers or rational functions, given the first few terms.
Martin Rubey
doaj   +1 more source

Roots of Ehrhart polynomials of Gorenstein Fano polytopes [PDF]

open access: yes, 2010
Given arbitrary integers $k$ and $d$ with $0 \leq 2k \leq d$, we construct a Gorenstein Fano polytope $\Pc \subset \RR^d$ of dimension $d$ such that (i) its Ehrhart polynomial $i(\Pc, n)$ possesses $d$ distinct roots; (ii) $i(\Pc, n)$ possesses exactly ...
Hibi, Takayuki   +2 more
core   +1 more source

Cluster‐Randomized Trials in Emergency Care Research

open access: yesAcademic Emergency Medicine, EarlyView.
ABSTRACT Objective Cluster‐randomized trials (also called group‐randomized trials) are increasingly common in emergency care research. In such trials, groups of participants are allocated to different interventions based on naturally occurring “clusters,” such as clinics, hospitals, or emergency medical services agencies. In this methodological review,
Howard S. Kim   +2 more
wiley   +1 more source

On the set of Fixed Points of the Parallel Symmetric Sand Pile Model [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
Sand Pile Models are discrete dynamical systems emphasizing the phenomenon of $\textit{Self-Organized Criticality}$. From a configuration composed of a finite number of stacked grains, we apply on every possible positions (in parallel) two grain moving ...
Kévin Perrot   +2 more
doaj   +1 more source

DGD Gallery: Storage, sharing, and publication of digital research data [PDF]

open access: yes, 2015
We describe a project, called the "Discretization in Geometry and Dynamics Gallery", or DGD Gallery for short, whose goal is to store geometric data and to make it publicly available. The DGD Gallery offers an online web service for the storage, sharing,
Bobenko, Alexander I.   +4 more
core   +2 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Around the root of random multidimensional quadtrees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We analyse the distribution of the root pattern of randomly grown multidimensional point quadtrees. In particular, exact, recursive and asymptotic formulas are given for the expected arity of the root.
Gilbert Labelle   +2 more
doaj   +1 more source

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