3,705 research outputs found

    Boldyrev, A.

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    Benthophilus ragimovi Boldyrev & Bogutskaya 2004

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    18. Benthophilus ragimovi Boldyrev & Bogutskaya, 2004 , Ragimov’s Tadpole Goby Benthophilus ragimovi Boldyrev & Bogutskaya, 2004: 132, fig. 2; type locality: between Yasma and Kilyazi, Azerbaijan, depth 50 m; holotype: ZIN 53216, male, 67.8 mm SL, paratypes: ZIAZ 93 (8). 467 (6); ZIN 23126 (3), 53217 (1), 53218 (7), 53219 (4), plus additional non-type material. Etymology: Named after D. B. Ragimov, an authority of Caspian Sea gobiid fishes. Distribution and habitat: West coast of the Middle and South Caspian Sea from Chechen Island (Russia) south to the Astara region (Azerbaijan) (Fig. 11C). No records from Iran, but based on geographic proximity to its recording site in Azerbaijan (Astara), we predict its presence in the coastal waters of Gilan. Occurs at salinities 11.0–13.2 ‰. A deep water species (depths 30–200 m), spawning at 10–20 m (Boldyrev & Bogutskaya 2007). IUCN: LC (Bogutskaya 2021).Published as part of Zarei, Fatah, Esmaeili, Hamid Reza, Abbasi, Keyvan, Kovačić, Marcelo, Schliewen, Ulrich K. & Stepien, Carol A., 2022, Gobies (Teleostei: Gobiidae) of the oldest and deepest Caspian Sea sub-basin: an evidence-based annotated checklist and a key for species identification, pp. 151-193 in Zootaxa 5190 (2) on page 170, DOI: 10.11646/zootaxa.5190.2.1, http://zenodo.org/record/712006

    Le professeur A. K. Boldyrev (cristallographe, minéralogiste et géologue)

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    Kurylenko Constantin. Le professeur A. K. Boldyrev (cristallographe, minéralogiste et géologue). In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 73, 10-12, 1950. pp. 489-502

    Secret and Community: the Place of History in Eleusis

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    Item does not contain fulltext{The article presents a commentary on H.W.F. Hegel's Eleusis (1796). Boldyrev discusses a paradox: insisting on the ontological inadequacy of language, Hegel simultaneously emphasizes the need to keep secrets. The author discusses this seemingly senseless concealment from a philosophical-historical perspective, from the viewpoint of the decline of the present and the anticipation of a coming community of the consecrated. The dialogue between Hegel and Holderlin, and their discussion of mysteries that have no determined content, demonstrate how a vow of silence can become indistinguishable from the need to share a secret, and how this publicity is connected to the very essence of a speculative dialectics, with its vulnerability both literary and political.

    Alexander Boldyrev is historian innovator

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    Чорноморська минувшина : записки відділу історії козацтва на Півдні України / НАН України, НДІ укр. козацтва . – Одеса, 2014.У статті розглянуто неоцінимий внесок Олександра Болдирєва в українську історіографію як одного із представників молодого покоління українських істориків, які почали творити нову сторінку вітчизняної історіографії. Олександр Болдирєв виявився одним із перших дослідників Одеси, хто по-новому переосмислив традиційний підхід Визвольної війни під проводом Б.Хмельницького у середині XVII ст. і запропонував нову періодизацію цього процесу в контексті європейської історії того часу у своїй обґрунтованій статті, яка була опублікована в університетській газеті «Одеський університет» - редактором якої недовгий час був Олександр (Олесь) Болдирєв під претензійною назвою: «Велика східноєвропейська війна 1648 – 1681 рр.». Розглянуто також деякі сторінки особистого життя та громадсько- політичної діяльності. Підкреслено важливий внесок в дослідження історії Одеси.В статье рассмотрен неоценимый вклад Александра Болдырева в украинскую историографию как одного из представителей молодого поколения украинских историков, которые начали создавать новую страницу отечественной историографии. Об Александре Болдыреве сведений очень мало. Однако он сумел войти в историю Одессы и в отечественную историю как пытливый ученый, чьи научные труды и исследования стали настоящими вехами в истории Одессы и Украины. Своеобразным взрывом в его научном наследии стало издание небольшой книги «Одессе – 600», которая была своеобразной альтернативой громкого празднования 200-летнего юбилея Одессы в 1994 г. В знак «протеста», он не принял участия в международной научной конференции, посвященной 200-летию Одессы. Наконец, недописанная книга «Благородная Полония над Черным морем» - это также веха в исследовании вклада этнических групп в развитие украинской истории. Рассмотрены также некоторые страницы личной жизни и общественно-политической деятельности. Подчеркнуто важный вклад в исследование истории Одессы.In this article described the invaluable contribution of Alexander Boldyrev in Ukrainian historiography as one of the younger generation of Ukrainian historians who began to create a new page of national historiography. About Alexander Boldyrev we have very little information. However, he managed to study history of Odesa and the nation's history as a curious scientist, whose scientific work and intelligence have become real milestones in the history of Odesa and Ukraine. In the book «Historical figures» were well matched iconic hetmans in Ukrainian made a good analysis of the historiographical revision. The next book was «explosion» in the twentieth century of the history of Odessa. A landmark from which repelled with modern scholars Odessa. Introductory article by O.Boldyryev narrowly defines and explains his approach to the selection of historical essays titled - «History - a novel that was actually». Alexander Boldyrev was one of the first researchers of Odesa, who reinterpreted in a new traditional approach Liberation War led by B. Khmelnitsky in the middle of the XVII century. and proposed a new periodization of this process in the context of European history at the time. In its reasonable article that was published in the university newspaper «Odesa University» - an editor of which for short time was Alexander (Oles) Boldyrev with a pretentious title «The Great Eastern European war 1648 - 1681». The author on the eve of the 350th anniversary of the beginning of the Khmelnytsky trying to move away from the stereotypes and look at that historic event in terms of pan-historical process. Indeed, in 1648, ending 30-year-old war in Europe. And in Ukraine, a new phase of the war of the rebellion B.Khmelnytskyi which results in massive Cossack and peasant war of Ukrainian people for their rights and liberties. And because of political experience and his B.Khmelnytskyi diplomatic protection in this war drawn new state and not only in Eastern Europe. In terms of military historian O.Boldyrev identifies several components of this war, «Ukrainian Liberation war 1648 - 1654 years .; Russo-Polish war of 1654 - 1667 years .; Northern War 1655 - 1660 years .; Russo-Swedish War 1656 - 1658 years .; Polish-Turkish war of 1672 - 1676; Russian-Turkish War 1676 - 1681 «. Moreover researcher given the «modesty» of some historiographical schools notes that some of the war period referred military «campaigns», especially with the participation of Cossacks or selects periods from the perspective of the Tatar historiography has not yet held notions of Crimean-Polish War 1648 - 1654 years. Russian and Crimean War 1654 - 1681. Article by O.Boldyryev beyond the purely historical research, it has deeply historiosophical approach to crucial victory period of national history, because we think it deserves the attention of researchers, such as approaches to periodization of the Liberation War, its historical and philosophical understanding of the need broad discussions professionals especially in modern terms revaluation established values in society. This debate by publishing was wish his during his lifetime. A kind of explosion in his scientific achievements was the publication of a small book «Odesa - 600», which was an alternative to noisy celebration of the 200th anniversary of Odesa in 1994. In a sign of a kind of «protest», he did not participate in the international conference dedicated to 200th anniversary Odesa. «Odesa community» - it's just a whole page Ukrainian cultural and educational movement of the late nineteenth - early twentieth century. written on the example of Odessa. Revaluation of old Ukrainian historiography approaches a turning point in Ukrainian history - the Liberation War, Revolution of the mid XVII ct. and its approach, implemented in the context of European history. At last, unfinished book «noble Polonium over the Black Sea» - is also a milestone in the study of the contribution of ethnic groups to the development of Ukrainian history. Some pages are considered as personal life and socio-political activities. Highlighted important contribution to the study of the history of Odessa

    Fórmulas diretas de Ansheles

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    As "fórmulas diretas" do Professor Ansheles, cristalografista russo, são publicadas, sem dedução, na Cristalografia de BOLDYREV (1934), tradução para o espanhol de Candel Vila. No presente trabalho o autor deduz tais fórmulas, utilizando a projeção estereográfica.The "direct formulas" by Professor Ansheles, a Russian crystallographer, are published, without deduction, in the Crystallography by BOLDYREV, (1934), translated into Spanish by Candel Vila. In the present work the author deduces such formulas, using the stereographic projection

    Physiology and pathophysiology of carnosine

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    Carnosine (β-alanyl-l-histidine) was discovered in 1900 as an abundant non-protein nitrogen-containing compound of meat. The dipeptide is not only found in skeletal muscle, but also in other excitable tissues. Most animals, except humans, also possess a methylated variant of carnosine, either anserine or ophidine/balenine, collectively called the histidine-containing dipeptides. This review aims to decipher the physiological roles of carnosine, based on its biochemical properties. The latter include pH-buffering, metal-ion chelation, and antioxidant capacity as well as the capacity to protect against formation of advanced glycation and lipoxidation end-products. For these reasons, the therapeutic potential of carnosine supplementation has been tested in numerous diseases in which ischemic or oxidative stress are involved. For several pathologies, such as diabetes and its complications, ocular disease, aging, and neurological disorders, promising preclinical and clinical results have been obtained. Also the pathophysiological relevance of serum carnosinase, the enzyme actively degrading carnosine into l-histidine and β-alanine, is discussed. The carnosine system has evolved as a pluripotent solution to a number of homeostatic challenges. l-Histidine, and more specifically its imidazole moiety, appears to be the prime bioactive component, whereas β-alanine is mainly regulating the synthesis of the dipeptide. This paper summarizes a century of scientific exploration on the (patho)physiological role of carnosine and related compounds. However, far more experiments in the fields of physiology and related disciplines (biology, pharmacology, genetics, molecular biology, etc.) are required to gain a full understanding of the function and applications of this intriguing molecule

    PUBLIC-PRIVATE PARTNERSHIP: ESSENCE, FUNCTIONS AND GLOBAL PRACTICE

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    The author of the article explores the essence, functions and world experience of applying the mechanism of public-private partnership in the implementation of infrastructure projects. This article examines the practice of creating a regulatory framework, state associations and organizations whose purpose is to form and maintain stable links between public authorities and private businesses for the provision of public services. This article examines the experience of working with this mechanism in the territory of the countries of the European Union, the United States and the BRICS countries, and reveals the current trends in the development of public-private partnership in the modern worl

    Tearing-mediated Alfvénic Turbulence in a Relativistic Plasma

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    In astrophysical relativistic plasmas, Alfvénic turbulence exists across a wide range of scales. Similar to a nonrelativistic case, this turbulence can be influenced by the tearing instability. We argue that in an ultrarelativistic pair plasma the tearing effects become significant at the critical scale given by atdrel(L/drel)n/(4+5n){a}_{t}\sim {d}_{\mathrm{rel}}{\left({L}_{\perp }/{d}_{\mathrm{rel}}\right)}^{n/(4+5n)} , where L _⊥ represents the outer scale of the turbulence and d _rel the relativistic electron inertial scale. Here n = 1 corresponds to the Harris magnetic configurations, while n = 2 applies to localized (non-Harris) magnetic profiles of turbulence-generated current sheets. Below the critical scale, the energy spectrum of magnetic fluctuations steepens to W ( k ) dk ∝ k ^−(7 ^n ^+2)/3 ^n dk . However, this happens only when σ~(L/drel)(2+4n)/(4+5n)\tilde{\sigma }\ll {\left({L}_{\perp }/{d}_{\mathrm{rel}}\right)}^{(2+4n)/(4+5n)} , where σ~\tilde{\sigma } is the magnetization parameter based on the magnetic fluctuations. If the opposite inequality holds, the Alfvénic cascade is instead affected by charge starvation at scales below achdrel(drel/L)1/3σ~2/3{a}_{\mathrm{ch}}\sim {d}_{\mathrm{rel}}{\left({d}_{\mathrm{rel}}/{L}_{\perp }\right)}^{1/3}{\tilde{\sigma }}^{2/3} , and the energy spectrum becomes steeper than W ( k ) dk ∝ k ^−3 dk . When d _rel is replaced by its nonrelativistic equivalent, our results agree with the nonrelativistic analysis of N. F. Loureiro & S. Boldyrev (2018). In the Harris case n = 1, they agree with the recent relativistic studies by I. Demidov & Y. Lyubarsky
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