Results 51 to 60 of about 5,483 (201)

The local Kostant-PBW ordering

open access: yesDiscrete Mathematics, 1991
Let \(R\) be a reduced irreducible root system with ordered base \(B\). Let \(\tau\in\Lambda^ +_ r\), the positive cone of the root lattice of \(R\) with respect to \(B\). Konstant's partition function \(P(\tau)\) is the number of ways to write \(\tau\) as a sum of positive roots, and \(E_ +(\tau)\) is the set of such expressions for \(\tau\).
openaire   +1 more source

ABA regulation of post-germination desiccation tolerance in wheat cultivars contrasting in drought tolerance

open access: yesAnais da Academia Brasileira de Ciências
Post-germination desiccation tolerance (DT) was studied in two wheat cultivars. Effect of pretreatment of abscisic acid (ABA)/ osmotic/ salt/ heat stress was also studied.
SATINDER KOUR, VIKRAMJIT K. ZHAWAR
doaj   +1 more source

How Servicescapes Come to Feel Like Home: Reciprocal Social Exchange and the Development of Third Place Perceptions

open access: yesPsychology &Marketing, EarlyView.
ABSTRACT Amid rising loneliness and declining community participation, service environments have become increasingly important sites of everyday social interaction. Existing research has largely treated Third Place as a property of a space, leaving unexplored how individual customers come to perceive a servicescape as a social home.
Asha Worsteling   +3 more
wiley   +1 more source

Interactions between non-commutative algebraic geometry and skew PBW extensions [PDF]

open access: yes, 2016
. We study some relations and interactions between non-commutative algebraic geometry and the skew PBW extensions. For this we will introduce a new class of noncommutative rings, the semi-graded rings, and for them we will prove a generalization of ...
Latorre Acero, Edward Orlando
core  

Projective modules and Gröbner bases for skew PBW extensions [PDF]

open access: yes, 2017
Many rings and algebras arising in quantum mechanics, algebraic analysis, and non-commutative algebraic geometry can be interpreted as skew PBW (Poincare- Birkhoff Witt) extensions. In the present paper we study two aspects of these non-commutative rings:
Gallego Joya, Claudia Milena   +1 more
core   +1 more source

Glucocorticoids and HPA axis regulation in the stress–obesity connection: A comprehensive overview of biological, physiological and behavioural dimensions

open access: yesClinical Obesity, Volume 15, Issue 2, April 2025.
Summary Chronic stress, characterized by increased long‐term exposure to the glucocorticoid hormone cortisol, is increasingly linked to obesity development. Still, various knowledge gaps persist, including on underlying pathophysiological mechanisms. The aim of the current review is to provide the latest insights on the connection between stress and ...
Robin Lengton   +4 more
wiley   +1 more source

PBW deformations arising from algebraic groups

open access: yes, 2022
The PBW theorem, named after the authors Poincaré, Birkhoff and Witt, states the following: For a Lie algebra $\mathbb{g}$, the associated graded algebra of its universal enveloping algebra, $\text{gr}~ U(\mathbb{g})$, is isomorphic to its symmetric ...
Mackscheidt, Verity
core   +1 more source

Propiedad de Armendariz para las extensiones PBW torcidas y su anillo clásico de cocientes

open access: yesRevista Integración, 2016
Consideramos un primer acercamiento a la noción de anillo de Armendariz para una extensión torcida de Poincaré-Birkho-Witt (PBW), y su anillo clásico de cocientes.
Armando Reyes, Héctor Suárez
doaj   +1 more source

Research progress of the anthropogenic influences on global freshwater cycle and the water planetary boundary assessment

open access: yesShuiwen dizhi gongcheng dizhi, 2022
In recent decades, the effect of human activities on freshwater cycle transgressed the catchment scale. In order to solve the global and regional water problems effectively, a new framework is needed to transform from the traditional hydrology which ...
Jianfeng YANG   +3 more
doaj   +1 more source

The oral microbiota and periodontal health in orthodontic patients

open access: yesPeriodontology 2000, EarlyView.
Abstract The oral microbiota develops within the first 2 years of childhood and becomes distinct from the parents by 4 years‐of‐age. The oral microbiota plays an important role in the overall health/symbiosis of the individual. Deviations from the state of symbiosis leads to dysbiosis and an increased risk of pathogenicity.
Brandon W. Peterson   +4 more
wiley   +1 more source

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