154 research outputs found
Jerzy Bossak. Sketch for a portrait
No full textThe article presents a profile of Jerzy Bossak (1910–1989), an outstanding Polish filmmaker, head of the Polish Film Chronicle and the Kamera film team, and a long-time distinguished pedagogue at the Łódź Film School
Phase transition at high pressure in Cu2CO3(OH)(2) related to the reduction of the Jahn-Teller effect
No full textHydroxycarbonates with the general formula Me-2(CO3)(OH)(2) are widely used materials in industrial processes and are widespread in nature. The Cu term, malachite, Cu2CO3(OH)(2), is monoclinic, P2(1)/a. Substitution of Cu2+ with other bivalent cations such as Mg, Zn, Fe, Cu or Ni is possible and leads to a different structure type, rosasite, P2(1)/a or P2(1)/b11 in the same cell setting as malachite. Rosasite structure is topologically similar to malachite, but the symmetry elements are oriented differently with respect to structural units. The stability of the malachite-like structure (MS) compared with the rosasite-like structure (RS) has been suggested to be related to the Jahn-Teller effect in CuO6 coordination polyhedra. For this reason the hypothesis of the phase transition of malachite, Cu2CO3(OH)(2), to a rosasite structure at high pressure, as a result of the reduced Jahn-Teller effect, has been tested and confirmed by powder and single-crystal diffraction structural studies: above 6 GPa the malachite structure is no longer stable and transforms to a RS structure. RS Cu2CO3(OH)(2) is 3% more dense than malachite and the bulk modulus is remarkably higher, 80 (2) GPa compared with 48 (4) GPa. The longer apical Cu-O bonds in the distorted Me1 octahedral site are progressively shortened with increasing pressure, revealing a decrease in the Jahn-Teller effect at high pressure. The transition has a first-order character, is reversible with a significant hysteresis, and there is no evidence of any intermediate phase between the two structures. We then have further evidence that in the Me-2(CO3)(OH)(2) compounds, the two main structural types, MS and RS, are closely related. The former structure is stabilized only when Cu is the prevalent cation in the octahedral sites, and it can transform directly to the RS as a function of thermodynamic changes
Jerzy Bossak. Szkic do portretu (1910–1989)
No full textThe article presents a profile of Jerzy Bossak (1910–1989), an outstanding Polish filmmaker, head of the Polish Film Chronicle and the Kamera film team, and a long-time distinguished pedagogue at the Łódź Film School.The article presents a profile of Jerzy Bossak (1910–1989), an outstanding Polish filmmaker, head of the Polish Film Chronicle and the Kamera film team, and a long-time distinguished pedagogue at the Łódź Film School
(Un)forgotten Jerzy Bossak
No full textJerzy Bossak (właść. Jerzy Burger-Naum; 1910-1989), tworzył także pod pseudonimami (najbardziej znany - Jerzy Szelubski); reżyser filmów dokumentalnych, twórca Polskiej Kroniki Filmowej, organizator życia filmowego, według Andrzeja Wajdy był jedynym prawdziwym producentem filmowym w latach PRL. Artykuł przybliża mniej nagłośnione aspekty życia niesłusznie zapomnianego reżysera, proponując również interpretację pewnych wątków jego twórczości.Jerzy Bossak (Jerzy Burger-Naum; 1910-1989), he also wrote under pseudonyms (best known - Jerzy Szelubski); director of documentary films, creator of the Polish Film Chronicle, organizer of film life, according to Andrzej Wajda, he was the only real film producer in the communist period. The article introduces the less publicized aspects of the life of an unjustly forgotten director, also proposing an interpretation of certain threads in his work.Jerzy Bossak (Jerzy Burger-Naum; 1910-1989), písal aj pod pseudonymami (najznámejší - Jerzy Szelubski); režisér dokumentárnych filmov, tvorca Poľskej filmovej kroniky, organizátor filmového života, podľa Andrzeja Wajdu bol jediným skutočným filmovým producentom v období komunizmu. Článok približuje menej medializované stránky života neprávom zabudnutého režiséra a ponúka aj výklad niektorých tém v jeho tvorbe
Ethnography of Horse Racing Gamblers’ Lives. Constructing Biographical Narratives in the Process of Interviewing
No full textIn this paper, we analyze the narrative strategies employed by horse racing gamblers in the context of their interactions within interviews. The empirical base consisted of 20 semi-structured interviews conducted with long-term regular gamblers from Warsaw, Poland. First, we state our position in the context of interviews with people aware they may be assessed negatively regarding a very important part of their lives. Second, we discuss how the interlocutors presented their biographies and employed discursive methods of protection against negative interpretation. The research reveals how bettors justify their passion by referring to individual myths about the origins of their interest in gambling. We reveal how bettors consciously employ emotive discursive methods that alleviate the discourse of addiction. Emotions are not presented as triggered by compulsively realized needs but as a result of intellectual passion, pursued by like-minded people joined by a drive for agency
Coordinative unsaturated CuI entities are crucial intermediates governing cell internalization of copper. A combined experimental ESI-MS and DFT study
No full textModel peptides relevant to hCtr1 transchelate CuI from the anti-tumour [CuI(PTA)4]+ complex before metal internalization into tumor cells. ESI(+)MS experiments corroborated by DFT calculations indicate that tetracoordinated-CuII and linear-CuI arrangements of in situ generated copper-peptide products play a crucial role in promoting the transfer of copper from the terminal MDH portion into adjacent HSH peptide sequence
The evolving legal framework for private sector activity in Slovenia
No full textThe government of Slovenia is moving rapidly to promote the growth of an efficient market economy and the private sector. One of the major tasks it faces is the development of a legal framework that can act as a decentralized"invisible hand"to replace previous administrative controls and steer the private market in an efficient direction. This paper describes the current legal framework in Slovenia in several areas -- including constitutional, real property, intellectual property, company, foreign investment, bankruptcy, contract, and antimonopoly law. These areas of law serve to define: (a) property rights; (b) the means to exchange them; and (c) the rules for competitive market behavior. In essence they form the bedrock of a legal system for a market economy.Judicial System Reform,National Governance,Legal Products,Environmental Economics&Policies,Legal Institutions of the Market Economy
A república mundial das roupas e a modernidade de Machado de Assis
No full textThis paper starts with the notion of World Republic of Letters, created by French translator and author Valery Larbaud, to discuss relationships between the work of Machado de Assis and other authors, such as Flaubert and Baudelaire, and clothes. Dressing discourse, present among the related authors, makes one realize other inter-literary spots of contact that haven’t beenanalyzed systematically by critic. Machado de Assis’s entrance in this discussion places him, once more, in the centre of the literary discourse of his time.Neste artigo, parte-se da noção de República Mundial das Letras, cunhada pelo francês Valery Larbaud, para refletir sobre as relações existentes entre a obra de Machado de Assis e outros autores, como Flaubert e Baudelaire, e as roupas. O discurso indumentário presente nos autores citados permite perceber outros pontos de contato interliterário que não têm sido abordados sistematicamente pela crítica. A inserção de Machado de Assis nesta discussão coloca-o, uma vez mais, no centro do discurso literário de sua época
Application of a Polydescriptive Approach: Bond Graphs and Finite Elements to Design Analysis
No full textTax systems in transition
No full textHow have tax systems, whose primary role is to raise resources to finance public expenditures, evolved in the transition countries of Eastern Europe and the former Soviet Union? The authors find that: (1) the ratio of tax revenue-to-GDP decreased largely due to a fall in revenue from corporate income tax; (2) the fall in revenue from the corporate income tax led to a decline in the importance of income taxes, notwithstanding a rise in the share of individual income tax; (3) social security contributions together with payroll taxes became less important in the Commonwealth of Independent States; and (4) domestic indirect taxes gained in importancein overall tax revenues. Apart from the increased role of personal income taxation, these developments go in a direction opposite to those observed in poor countries as they get richer. They show a key aspect of transition, namely a movement from a system where the government exercised a preeminent claim on output and income before citizens had access to the remainder, to one with a greatly diminished role for the public sector, as reflected in a lower ratio of public expenditure to GDP, where the government needs to collect revenue in order to spend. Can expected levels of public expenditure be financed by the basic instruments of a modern tax system without creating significant distortions in the private sector? The authors suggest that transition countries, depending on their stage of development, should aim for a tax revenue-to-GDP ratio in the range of 22 to 31 percent, comprising value-added tax (6 to 7 percent), excises (2 to 3 percent), income tax (6 to 9 percent), social security contribution together with payroll tax (6 to 10 percent), and other taxes such as on trade and on property (2 percent). The authors'analysis also sheds light on the links between tax policy, tax administration, and the investment climate in transition countries.Municipal Financial Management,Environmental Economics&Policies,Banks&Banking Reform,Public Sector Economics&Finance,Economic Theory&Research,Environmental Economics&Policies,Public Sector Economics&Finance,Economic Theory&Research,Banks&Banking Reform,Municipal Financial Management
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