Results 31 to 40 of about 8,365 (115)

Electron recombination with multicharged ions via chaotic many-electron states [PDF]

open access: yes, 2001
We show that a dense spectrum of chaotic multiply-excited eigenstates can play a major role in collision processes involving many-electron multicharged ions.
A. A. Gribakina   +41 more
core   +2 more sources

Mintis ir judėjimas. (Ištraukos)

open access: yesProblemos, 2014
H. Bergsono veikalo „Mintis ir judėjimas“ ištraukose nagrinėjamas filosofijos ir mokslo santykis, filosofijos specifika ir statusas, aptariamas jos metodas. Teigiama, kad pažinime visada dalyvauja intuityvūs komponentai.
Henri Bergsonas
doaj   +1 more source

An efficient approach for spin-angular integrations in atomic structure calculations

open access: yes, 2004
A general method is described for finding algebraic expressions for matrix elements of any one- and two-particle operator for an arbitrary number of subshells in an atomic configuration, requiring neither coefficients of fractional parentage nor unit ...
Burke P G   +24 more
core   +1 more source

E. Nagelio logikos koncepcija

open access: yesProblemos, 2015
Straipsnyje analizuojama E. Nagelio logikos koncepcija. Teigiama, kad XVII–XVIII a. gnoseologiniams tyrinėjimams būdinga logikos universalizacijos idėja. XIX a.
Nijolė Petkevičiūtė
doaj   +1 more source

Coupled tensorial form for atomic relativistic two-particle operator given in second quantization representation

open access: yes, 2010
General formulas of the two-electron operator representing either atomic or effective interactions are given in a coupled tensorial form in relativistic approximation.
A. Bar-Salomand   +20 more
core   +1 more source

Descartes ir nauji filosofijos horizontai

open access: yesProblemos, 2014
Straipsnyje analizuojamos R. Descartes‘o mąstančiojo žmogaus (homo cogitans), mokslo, pažinimo sampratos, aptariama R. Descartes‘o idėjų raida Lietuvoje. Teigiama, kad R.
Romanas Plečkaitis
doaj   +1 more source

Spin-other-orbit operator in the tensorial form of second quantization

open access: yes, 1998
The tensorial form of the spin-other-orbit interaction operator in the formalism of second quantization is presented. Such an expression is needed to calculate both diagonal and off-diagonal matrix elements according to an approach, based on a ...
Andrius Bernotas   +16 more
core   +2 more sources

Filsofinė K. Poperio programa

open access: yesProblemos, 2014
Straipsnis skirtas austrų filosofo K. R. Popperio filosofinei programai aptarti. Jo opozicija klasikiniam loginiam pozityvizmui turėjo įtakos visai nemarksistinei gnoseologijos metodologijai. K. R.
Justinas Karosas
doaj   +1 more source

Instrumental processes, entropies, information in quantum continual measurements [PDF]

open access: yes, 2004
In this paper we will give a short presentation of the quantum Levy-Khinchin formula and of the formulation of quantum continual measurements based on stochastic differential equations, matters which we had the pleasure to work on in collaboration with ...
Barchielli, Alberto, Lupieri, Giancarlo
core   +1 more source

Statistical analysis of a comprehensive list of visual binaries

open access: yes, 2015
Visual binary stars are the most abundant class of observed binaries. The most comprehensive list of data on visual binaries compiled recently by cross-matching the largest catalogues of visual binaries allowed a statistical investigation of ...
Chulkov, D.   +4 more
core   +2 more sources

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