1,357,491 research outputs found
Солитоны в обобщенной квантовой гидродинамике и теория шаровой молнии
No full textQuantum solitons are discovered with the help of generalized quantum hydrodynamics. The solitons have the character of the stable quantum objects in the self consistent electric field. The theory of quantum solitons lead to explanation of the existence of stable atom structures on the microscopic level and lightning balls on the macroscopic level of description of physical systems. The delivered theory demonstrates the great possibilities of the generalized quantum hydrodynamics in investigation of the quantum solitons. The paper can be considered also as comments and prolongation of the materials published in the known author`s monograph (Boris V. Alexeev, Generalized Boltzmann Physical Kinetics. Elsevier. 2004). The theory leads to solitons as typical formations in the generalized quantum hydrodynamics.Квантовые солитоны открыты с помощью обобщенной квантовой гидродинамики. Солитоны имеют характер стабильных квантовых объектов в самосогласованном электрическом поле. Теория квантовых солитонов приводит к объяснению существования стабильных атомов на микроскопическом уровне и шаровых молний на макроскопическом уровне описания физических систем. Разработанная теория демонстрирует большие возможности обобщенной квантовой гидродинамики в исследовании квантовых солитонов как типичных образований в обобщенной квантовой теории. Статья может также рассматриваться как продолжение исследований, изложенных в известной монографии автора (Boris V. Alexeev, Generalized Boltzmann Physical Kinetics. – Elsevier, 2004)
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Klara Selvina, about Timofei Alexeev
No full textKlara talks about her friend Timofei Alexeev, who was a famous actor in Kalmykia. She recounts how she met him, how they studied and worked together, and what he was like as a person and actor
Chelonus ocellatus ALEXEEV 1971
No full textChelonus ocellatus ALEXEEV 1971 M a t e r i a l: Mazandaran province: Savadkooh, Alasht (3), September 2003. G e n e r a l d i s t r i b u t i o n: Crimea,MiddleAsia, Turkey.Published as part of Ghahari, H., Fischer, M., Cetin, O., Beyarslan, A. & Ostovan, H., 2010, A contribution to the braconid wasps (Hymenoptera: Braconidae) from the forests of northern Iran, pp. 621-634 in Linzer biologische Beiträge 42 (1) on page 626, DOI: 10.5281/zenodo.533280
Income Distribution and Price Controls: Targeting a Social Safety Net During Economic Transition
No full textDuring the ongoing post-communist economic transitions, the relative well-being of many people is changing rapidly, and governments are not well positioned to accurately measure individual living standards. Under such circumstances, continued price controls over basic consumer goods within the state sector, and the associated queuing, can form a serviceable device for targeting poor people for subsidies. With a fixed-price state sector and free-price parallel markets, rich people might choose to avoid queues and shop in the free markets, while poor people would prefer to pay low nominal prices and queue in the state sector. The targeting of subsidies through queues, therefore, can be accomplished even if the government has no information on individual income or living standards. When the alternative to price controls is a poorly targeted explicit social safety net, the resource cost of queues might be more than compensated for by an improvement in the targeting of subsidies.price controls, tax evasion, queue-rationing, economic transition, income distribution
Chelonus ocellatus ALEXEEV 1971
No full textChelonus ocellatus ALEXEEV 1971 M a t e r i a l e x a m i n e d: Mazandaran province: Savadkooh, 1, July 2005. G e n e r a l d i s t r i b u t i o n Crimea, Middle Asia, Turkey (AYDOGDU & BEYARSLAN 2002).Published as part of Sakenin, H., Naderian, H., Samin, N., Rastegar, J., Tabari, M., Papp, J. & I, Northern, 2012, On a collection of Braconidae (Hymenoptera) from northern Iran, pp. 1319-1330 in Linzer biologische Beiträge 44 (2) on page 1323, DOI: 10.5281/zenodo.533526
On the Singular Spectrum of Powers and Products of Random Matrices
No full textAlexeev NV, Götze F, Tikhomirov AN. On the Singular Spectrum of Powers and Products of Random Matrices. DOKLADY MATHEMATICS. 2010;82(1):505-507
On the existence of ramified abelian covers
No full textGiven a normal complete variety over an algebraically closed field
, distinct effective Weil divisors of and positive
integers , we spell out the conditions for the existence of an
abelian cover of branched with order on .
As an application, we prove that a cover of a normal complete toric variety
branched on the torus-invariant divisors is itself a toric variety if the
characteristic of is equal to 0 or if the cover is Galois of degree
not divisible by the characteristic.Comment: Dedicated to Alberto Conte on his 70th birthday. Version 3: Thm. 3.7
has been reformulated. We thank Boaz Moerman for pointing out that the
earlier version of this result was incorrec
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
A Note on Measuring the Unofficial Economy in the Former Soviet Republics
No full textThis note argues that the most commonly used estimates of the size of the unofficial economies in the former Soviet republics are flawed. Most important, they are based on calculations that disregard the variation in unofficial economic activity across space in the pre-transition Soviet Union. In addition, these estimates appear to understate the size of the unofficial economies in these countries. We propose alternative estimates and find that they are more strongly related to the institutional factors commonly used to explain the size of the unofficial sector. Our estimates also show that the size of a country's pre-transition unofficial economy is an important predictor of its size during the transition. This suggests that the size of the unofficial economy is to a large extent a historical phenomenon only partly determined by contemporary institutional factors.A Note on Measuring the Unofficial Economy in the Former Soviet Republics
Creators of forest typological classification A. A. Krudener and Je. V. Alexeev (to 140th anniversary)
No full textОписана роль А. А. Крюденера и Е. В. Алексеева в развитии лесной типологии, теоретическое и практическое значение их исследований и преждк всего создание сопряженной классификации лесов и почвогрунтов в координатах их богатства пищей и увлажнения.Описано роль А. А. Крюденера і Є. В. Алєксєєва у розвитку лісової типології, теоретичне і практичне значення їхніх досліджень і насамперед створення спряженої класифікації лісів і ґрунтів у координатах їхнього богатства живильними речовинами та зволоження.The role of A. A. Krudener and Je. V. Alexeev in development of forest typology as well as theoretical and practical meaning of their researches are described, first of all creation of mutual classification of forest and soils in coordinates of nutrition level and humidity
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