Results 101 to 110 of about 2,403 (227)

Model theory of Steiner triple systems

open access: yes, 2019
A Steiner triple system is a set $S$ together with a collection $\mathcal{B}$ of subsets of $S$ of size 3 such that any two elements of $S$ belong to exactly one element of $\mathcal{B}$.
Casanovas, E   +3 more
core   +1 more source

Structured Inequality, Uncertain Lifespans: Demographic Perspectives on Predicting Individual‐Level Longevity

open access: yesPopulation and Development Review, EarlyView.
Abstract There are striking disparities in life expectancy across sociodemographic groups in the United States, shaped by structural forces such as racism, class inequality, and policy environments. To what extent do sociodemographic characteristics structure—or fail to structure—individual lifespans? Using U.S.
Casey F. Breen, Nathan Seltzer
wiley   +1 more source

Spanning sets and scattering sets in Steiner triple systems

open access: yes, 1991
A spanning set in a Steiner triple system is a set of elements for which each element not in the spanning set appears in at least one triple with a pair of elements from the spanning set. A scattering set is a set of elements that is independent, and for
Dinitz, Jeffrey H.   +2 more
core   +1 more source

QTL Mapping of Several Seed Quality Traits in the DH Population NPZ06 × NPZ09 (Brassica napus L.) for Marker‐Assisted Selection

open access: yesPlant Breeding, EarlyView.
ABSTRACT Enhancing nutritional quality of oilseed rape requires deeper insight into the genetic control of seed quality traits. This study analysed the effect of varying soil phosphorus (P) levels on seed quality traits in the hybrid cultivar Architect. NIRS and laboratory methods were used to quantify total seed P and phytic acid (IP6) content.
Jasmin Vettel   +2 more
wiley   +1 more source

From cognitive coherence to political polarization: A data‐driven agent‐based model of belief change

open access: yesPolitical Psychology, EarlyView.
Abstract Political polarization represents a rising issue in many countries, making it more and more important to understand its relation to cognitive‐motivational and social influence mechanisms. Yet, the link between micro‐level mechanisms and macro‐level phenomena remains unclear.
Marlene C. L. Batzke   +4 more
wiley   +1 more source

Steiner triple systems with rotational automorphisms

open access: yes, 1981
A Steiner triple system S(υ) of order υ is said to be k-ratational (k positive integer) if it admits an automorphism consisting of a single fixed point and precisely k (υ−1)⧸k-cycles.
Rosa, Alexander, Phelps, Kevin T.
core   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

open access: yesExperimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford   +4 more
wiley   +1 more source

Steiner Triple Systems With High Discrepancy

open access: yesJournal of Combinatorial Designs
ABSTRACT In this paper, we initiate the study of discrepancy questions for combinatorial designs. Specifically, we show that, for every fixed and , any ‐colouring of the triples on admits a Steiner triple system of order with discrepancy .
Lior Gishboliner   +2 more
openaire   +2 more sources

Effect of repeated hot water immersion on cognitive performance, cerebrovascular function, sleep and biomarkers of neurodegeneration in older adults

open access: yesExperimental Physiology, EarlyView.
Abstract Ageing is associated with cognitive decline and increased risk of developing neurodegenerative disease. Repeated passive heating, using hot water immersion (HWI), may improve cognitive performance via improved cerebral oxygenation, but this is yet to be examined in older adults.
Daniel D. Piccolo   +16 more
wiley   +1 more source

Low‐threshold cutaneous mechanoreceptors on the foot sole have enhanced sensitivity when skin temperature is elevated

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustration of microneurography recordings used to examine the effects of local skin heating on cutaneous mechanoreceptor responses in the human foot (left panel). A microelectrode inserted into a peripheral nerve records single‐unit activity from tactile afferent fibres while controlled mechanical stimuli are applied ...
Erika E. Howe   +4 more
wiley   +1 more source

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