Results 121 to 130 of about 92,304 (328)

La femme fait la maison: The Accumulation of Surplus Value through Family Planning in Burkina Faso1

open access: yesAntipode, EarlyView.
Abstract Since the 1960s, demographers, international donors, and governments have calculated the political, economic, and social benefits of modern contraception usage in West Africa. We evidence how family planning technologies (FPTs) that are tethered to population development extract double value (productive and reproductive labour) from Burkinabè ...
T.D. Harper‐Shipman, Katian Napon
wiley   +1 more source

On the annihilator graphs of partial transformation semigroups

open access: yesArab Journal of Basic and Applied Sciences
Let [Formula: see text] and [Formula: see text] be a partial transformation semigroup on [Formula: see text] Obviously, the empty set [Formula: see text] is a zero element of [Formula: see text] and denoted by 0.
Chollawat Pookpienlert   +2 more
doaj   +1 more source

Spectra of Orders for k-Regular Graphs of Girth g

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A (k, g)-graph is a k-regular graph of girth g. Given k ≥ 2 and g ≥ 3, infinitely many (k, g)-graphs of infinitely many orders are known to exist. Our goal, for given k and g, is the classification of all orders n for which a (k, g)-graph of order n ...
Jajcay Robert, Raiman Tom
doaj   +1 more source

On the diversity of test instances for studying branch‐and‐bound performance

open access: yesAustralian &New Zealand Journal of Statistics, EarlyView.
Summary In their paper ‘An Automatic Method for Solving Discrete Programming Problems’, Ailsa Land and Alison Doig developed a branch‐and‐bound method for solving the general case of the mixed integer linear programming (MIP) problem. A core part of the algorithm, branch variable selection, has received renewed attention in recent years with the ...
Simon Bowly, Kate Smith‐Miles
wiley   +1 more source

Independent sets and cuts in large-girth regular graphs [PDF]

open access: yes, 2016
We present a local algorithm producing an independent set of expected size $0.44533n$ on large-girth 3-regular graphs and $0.40407n$ on large-girth 4-regular graphs.
Csóka, Endre
core   +1 more source

Closing the air gap: the use of drones for studying wildlife ecophysiology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Techniques for non‐invasive sampling of ecophysiological data in wild animals have been developed in response to challenges associated with studying captive animals or using invasive methods. Of these, drones, also known as Unoccupied Aerial Vehicles (UAVs), and their associated sensors, have emerged as a promising tool in the ecophysiology ...
Adam Yaney‐Keller   +3 more
wiley   +1 more source

The Relationship Between Stature and Live Weight of Dairy Cows Between Birth and Maturity

open access: yesRuminants
Lactational and reproductive performance are strongly associated with cow live weight and capacity. However, there are limited data published describing capacity (thoracic) growth and the prediction of final stature and capacity from measurements at ...
Michaela J. Gibson   +5 more
doaj   +1 more source

3-regular matchstick graphs with given girth [PDF]

open access: yesS. Kurz and G. Mazzuoccolo: 3-regular matchstick graphs with given girth, Geombinatorics Quarterly Vol. XIX, Nr. 4 (2009), Pages 156-173, 2014
We consider 3-regular planar matchstick graphs, i.e. those which have a planar embedding such that all edge lengths are equal, with given girth g. For girth 3 it is known that such graphs exist if and only if the number of vertices n is an even integer larger or equal to 8. Here we prove that such graphs exist for girth g=4 if and only if n is even and
arxiv  

Non-Hamiltonian 3-Regular Graphs with Arbitrary Girth [PDF]

open access: yesUniversal Journal of Applied Mathematics, 2(1):72-78, 2014, 2019
It is well known that 3--regular graphs with arbitrarily large girth exist. Three constructions are given that use the former to produce non-Hamiltonian 3--regular graphs without reducing the girth, thereby proving that such graphs with arbitrarily large girth also exist.
arxiv  

Quantification of Lateralized Overgrowth and Genotype‐Driven Tissue Composition

open access: yesClinical Genetics, EarlyView.
Lateralized overgrowth involves asymmetric body growth across conditions. TB‐DXA accurately identifies and quantifies tissue overgrowth, showing varied patterns among conditions and improving diagnosis. ABSTRACT Lateralized overgrowth (LO) is characterized by excessive growth of one side of the body compared to the other.
Andrea Gazzin   +10 more
wiley   +1 more source

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