740 research outputs found

    Молодежь современной Беларуси: базовые ценности, жизненные планы и поведенческие стратегии

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    The article considers the transformation of basic values, life plans and behavioral strategies of the youth in contemporary Belarus. The changes in basic values are directly connected with the youth's adaptation to the conditions of global instability. The new generation is sensitive to social injustice, violations of rights and freedoms, unwillingness to take into account their opinions on current issues of social development and the future. The self-perception of people regarding the possibility to realize basic values in the current social-economic conditions is an important factor of social stability. In both 1990 and 2018, family holds the first place among the basic values in Belarus; work takes the second place as a factor of decent life and family's success; the importance of friends and leisure remains the same over the decades, while the importance of politics and religion grows. International comparisons show that Belarus has the same hierarchy of values as European countries. The surveys prove a decrease in popularity of the traditional media among the youth and an increase in individualism, importance of personal self-realization in family and at work, and in reliance on one’s own forces. In the public space, the needs and expectations of people have changed - there is an increase in political radicalization and critical perception of the most important events, which affects the behavioral patterns of social-demographic groups. Education together with the family and new information technologies have a significant impact on values - there is an intragenerational gap, alienation from society and increasing informatization. The article is based on the results of the sociological surveys conducted in the framework of the European Values Study (EVS) (the results of 1990 and 2018 are compared)

    Nonvascularized human skin chronic allograft rejection.

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    A 65-year-old man had extensive burns of the lower legs in 1991, at the age of 40 years. He was treated by nonvascularized and de-epithelialized, allogeneic split-thickness skin allograft and cyclosporine monotherapy for 2 months. Ulcers developed between 10 and 25 years after transplantation and a surgical debridement on the lower extremities was required. Analyses of the removed tissue allografts showed chronic antibody-mediated and cellular rejection with extensive and dense fibrosis, and diffuse capillary C4d deposits. An anti-DRB1*08:01, donor-specific antibody was present. A unique clinical condition with late immunopathological features of human skin chronic allograft rejection is reported

    Белорусское общество: от ценностей выживания к ценностям развития и самовыражения

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    The article considers new trends in the value system of the Belarusian society. Based on the data of the international sociological surveys conducted as waves of the European Values Study and World Values Study, the authors identify changes in the value orientations of the Belarusian society over the past thirty years. The authors use the methodological approach to identifying the system of value orientations that was developed by R. Inglehart and K. Welzel. The study of fundamental trends in the changing value world of the contemporary society is of practical importance for understanding internal factors of the current socialpolitical processes and for assessing prospects for the further sustainable development of socialpolitical institutions. The article aims at identifying the main directions in the transformation of the value orientations of the Belarusian society since the acquisition of state sovereignty. The authors conclude that the Belarusian society moves from the values of survival to the values of development and self-expression. In the project, the authors conducted an analysis of the demographic structure of the Belarusian society in terms of value priorities and found out that the demographic base of secular-individualistic and self-expression values consists of highly educated residents of large cities of younger (under 30) and middle (up to 49) age. Given the growth of the share of population with higher education and the second wave of urbanization (the outflow from small towns to large cities), we should expect an expansion of this demographic base and, accordingly, the further spread of these value orientations. In this situation, the education system acts as a source of the ongoing changes and develops the value matrix of the coming social reality

    Renal Fanconi Syndrome and Hypophosphatemic Rickets in the Absence of Xenotropic and Polytropic Retroviral Receptor in the Nephron.

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    Tight control of extracellular and intracellular inorganic phosphate (Pi) levels is critical to most biochemical and physiologic processes. Urinary Pi is freely filtered at the kidney glomerulus and is reabsorbed in the renal tubule by the action of the apical sodium-dependent phosphate transporters, NaPi-IIa/NaPi-IIc/Pit2. However, the molecular identity of the protein(s) participating in the basolateral Pi efflux remains unknown. Evidence has suggested that xenotropic and polytropic retroviral receptor 1 (XPR1) might be involved in this process. Here, we show that conditional inactivation of Xpr1 in the renal tubule in mice resulted in impaired renal Pi reabsorption. Analysis of Pi transport in primary cultures of proximal tubular cells or in freshly isolated renal tubules revealed that this Xpr1 deficiency significantly affected Pi efflux. Further, mice with conditional inactivation of Xpr1 in the renal tubule exhibited generalized proximal tubular dysfunction indicative of Fanconi syndrome, characterized by glycosuria, aminoaciduria, calciuria, and albuminuria. Dramatic alterations in the renal transcriptome, including a significant reduction in NaPi-IIa/NaPi-IIc expression, accompanied these functional changes. Additionally, Xpr1-deficient mice developed hypophosphatemic rickets secondary to renal dysfunction. These results identify XPR1 as a major regulator of Pi homeostasis and as a potential therapeutic target in bone and kidney disorders

    Spontaneous non-traumatic splenic artery aneurysm rupture: a case report and review of the literature.

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    The current case report is about spontaneous non-traumatic rupture of a splenic artery aneurysm (SAA) in a 53-year-old woman with no particular medical history. An emergent laparotomy with splenectomy was required, unfortunately without success as the patient died. SAA is the most common visceral artery aneurysm. Most of SAA remain asymptomatic and are discovered incidentally on imaging. The overall risk of rupture increases with the size of SAA, especially when above 2 cm. Initial presentation of SAA has been associated with acute rupture and hemodynamic instability leading to substantial perioperative morbidity and mortality

    Quantum Fourier transform, Heisenberg groups and quasiprobability distributions

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    This paper aims to explore the inherent connection among Heisenberg groups, quantum Fourier transform and (quasiprobability) distribution functions. Distribution functions for continuous and finite quantum systems are examined first as a semiclassical approach to quantum probability distribution. This leads to studying certain functionals of a pair of "conjugate" observables, connected via the quantum Fourier transform. The Heisenberg groups emerge naturally from this study and we take a rapid look at their representations. The quantum Fourier transform appears as the intertwining operator of two equivalent representation arising out of an automorphism of the group. Distribution functions correspond to certain distinguished sets in the group algebra. The marginal properties of a particular class of distribution functions (Wigner distributions) arise from a class of automorphisms of the group algebra of the Heisenberg group. We then study the reconstruction of Wigner function from the marginal distributions via inverse Radon transform giving explicit formulas. We consider applications of our approach to quantum information processing and quantum process tomography.Comment: 39 page

    A nilpotent IP polynomial multiple recurrence theorem

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    We generalize the IP-polynomial Szemer\'edi theorem due to Bergelson and McCutcheon and the nilpotent Szemer\'edi theorem due to Leibman. Important tools in our proof include a generalization of Leibman's result that polynomial mappings into a nilpotent group form a group and a multiparameter version of the nilpotent Hales-Jewett theorem due to Bergelson and Leibman.Comment: v4: switch to TeXlive 2016 and biblate

    Asymptotic Behavior of Ext functors for modules of finite complete intersection dimension

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    Let RR be a local ring, and let MM and NN be finitely generated RR-modules such that MM has finite complete intersection dimension. In this paper we define and study, under certain conditions, a pairing using the modules \Ext_R^i(M,N) which generalizes Buchweitz's notion of the Herbrand diference. We exploit this pairing to examine the number of consecutive vanishing of \Ext_R^i(M,N) needed to ensure that \Ext_R^i(M,N)=0 for all i0i\gg 0. Our results recover and improve on most of the known bounds in the literature, especially when RR has dimension at most two

    Investigation of the Kinetics of the Release of Main Gaseous Fission Products from Promising Fuel Samples of High-Temperature Gas-Cooled Reactors

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    This work is devoted to an experimental study of the kinetics of the release of the main gaseous fission products from promising fuel samples of high-temperature gas-cooled reactors on the basis of the conducted reactor ampoule tests in the IVV-2M reactor
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