Results 41 to 50 of about 56,400 (202)

Phase Transitions in the Pseudospin-Electron Model

open access: yes, 2007
A review of the present state of investigations of the pseudospin-electron model (PEM), which is used in the theory of strongly correlated electron systems, is given.
Stasyuk, Ihor
core   +1 more source

Spectral theory of a mathematical model in Quantum Field Theory for any spin [PDF]

open access: yes, 2015
In this paper we use the formalism of S.Weinberg in order to construct a mathematical model based on the weak decay of hadrons and nuclei. In particular we consider a model which generalizes the weak decay of the nucleus of the cobalt.
Guillot, Jean-Claude
core   +1 more source

An Archaeometallurgical Investigation on Some Archaeological Metal Finds From the Sasanian Site of Jahāngir, Western Iran

open access: yesArchaeometry, EarlyView.
ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi   +2 more
wiley   +1 more source

Population Change as an Aspect of Suburbanization of Major Cities in Poland

open access: yesReal Estate Management and Valuation
Cities function in people’s minds as reservoirs of opportunities and possibilities. For many people, living in a city seems an attractive and logical life choice compared to areas perceived as provincial.
Gnat Sebastian
doaj   +1 more source

Scaling Limits for Multispecies Statistical Mechanics Mean-Field Models

open access: yes, 2011
We study the limiting thermodynamic behavior of the normalized sums of spins in multi-species Curie-Weiss models. We find sufficient conditions for the limiting random vector to be Gaussian (or to have an exponential distribution of higher order) and ...
Contucci, Pierluigi, Fedele, Micaela
core   +1 more source

Open Innovation for Circular Business Models: Addressing the Right Challenge at the Right Time

open access: yesJournal of Product Innovation Management, EarlyView.
ABSTRACT Academic Summary In response to escalating societal challenges, such as climate change and resource constraints, this article examines the transition from linear toward circular business models (CBMs). It explores the challenges of CBM transitions and how to tackle them through open innovation.
Daniel Wörner   +4 more
wiley   +1 more source

Impact of Digitalization, Economic Growth and Birth Rate on Female Labor Force: Evidence from Kazakhstan

open access: yesECONOMICS
The purpose of the research work is to determine impact of the economic growth, digitization indicators and birth rate on female labor force in the Kazakhstan. For this purpose, Autoregressive Distributed Lag (ARDL) method was used.
Kakizhanova Tolkyn   +4 more
doaj   +1 more source

Mobility choices of the Generation Y in Poland

open access: yesJournal of Economics and Management, 2019
Aim/purpose – The main objective of the paper is to explore mobility choices of Generation Y in Poland to check if they can be translated into guidelines for the development of mobility services.
Szmelter-Jarosz Agnieszka
doaj   +1 more source

Features of the geological structure of an oil and gas condensate field in Tomsk region

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2021
The X oil and gas condensate field is located in Parabel district of Tomsk region; the field is large in terms of recoverable reserves. Oil and gas content is confined to Jurassic sediments of Tyumen suite and Vasyugan suite.
S. F. Mulyavin   +2 more
doaj   +1 more source

Substitution of Fe3+ into anorthite in oxidized, Al‐deficient ferrobasaltic systems with implications for the petrogenesis of angrite meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Angrite meteorites are critically silica‐undersaturated igneous rocks with high Ca/Al and Fe/Mg, along with depletion in volatile lithophile elements Na and K such that they crystallize anorthite along with olivine and calcic pyroxene. The anorthite in angrites contains substantial Fe, and in NWA 1670 and NWA 1296, it is present at major ...
Seann J. McKibbin   +2 more
wiley   +1 more source

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