Results 31 to 40 of about 7,944,445 (301)

The star compactification

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
The relationships between a convergence space and its star compactification is studied. Special attention is given to lifting properties of this compactification.
G. D. Richardson, D. C. Kent
doaj   +1 more source

Witt kernels of quadratic forms for multiquadratic extensions in characteristic 2 [PDF]

open access: yes, 2014
Let $F$ be a field of characteristic $2$ and let $K/F$ be a purely inseparable extension of exponent $1$. We show that the extension is excellent for quadratic forms. Using the excellence we recover and extend results by Aravire and Laghribi who computed
Hoffmann, Detlev W.
core   +1 more source

Extensions of nonnatural Hamiltonians [PDF]

open access: yesTheoretical and Mathematical Physics, 2020
11 ...
Chanu C. M., Rastelli G.
openaire   +3 more sources

Competitiveness Analysis in Agricultural Cooperatives: The Role of Organizational Learning and Organizational Innovation (Case of Agricultural Cooperatives of Tehran Province) [PDF]

open access: yesPizhūhish/hā-yi Rūstāyī, 2020
Given the importance of the role of agricultural cooperatives in agricultural and rural development, the need to identify the factors that improve the competitiveness of these organizations is strongly felt.
Nazanin Varamini   +3 more
doaj   +1 more source

Maximum Lebesgue Extension of Monotone Convex Functions [PDF]

open access: yes, 2014
Given a monotone convex function on the space of essentially bounded random variables with the Lebesgue property (order continuity), we consider its extension preserving the Lebesgue property to as big solid vector space of random variables as possible ...
Owari, Keita
core   +1 more source

Analyzing the factors affecting optimal management of saline water by application of Sustainable Livelihoods Framework [PDF]

open access: yesRāhburdhā-yi tusi̒ah-i rūstāyī, 2016
In recent years, fresh water has been increasingly reduced and saline water has been one of the options to help the continuity and stability of agricultural activities.
Masoumeh Forouzani   +2 more
doaj   +1 more source

Rotor resonances of high-speed permanent-magnet brushless machines [PDF]

open access: yes, 2002
For high-speed machines, in particular, it is very important to accurately predict natural frequencies of the rotor at the design stage so as to minimize the likelihood of failure.
Ede, J.D., Howe, D., Zhu, Z.Q.
core   +1 more source

Independent natural extension for infinite spaces [PDF]

open access: yesInternational Journal of Approximate Reasoning, 2019
We define and study the independent natural extension of two local uncertainty models for the general case of infinite spaces, using the frameworks of sets of desirable gambles and conditional lower previsions. In contrast to Miranda and Zaffalon (2015), we adopt Williams-coherence instead of Walley-coherence.
openaire   +2 more sources

Antiaging agents: safe interventions to slow aging and healthy life span extension

open access: yesNatural Products and Bioprospecting, 2022
Human longevity has increased dramatically during the past century. More than 20% of the 9 billion population of the world will exceed the age of 60 in 2050. Since the last three decades, some interventions and many preclinical studies have been found to
Jikai Liu
semanticscholar   +1 more source

Evaluation of the Effect of Flood Spreading on the Fluctuations of Rangeland Plant Indices in the Aquifer Management Kowsar Station [PDF]

open access: yesپژوهش‌های آبخیزداری, 2023
Introduction and ObjectivesThe history of flood spreading in the lands adjacent the rivers and flood irrigation reaches several thousand years. There are evidences of the use of floods to increase plant production in different parts of Iran, including ...
Seyed Mohammad Reza Habibian   +2 more
doaj   +1 more source

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