Two-loop dimensional reduction and effective potential without temperature expansions

In many extensions of the Standard Model, finite temperature computations are complicated by a hierarchy of zero temperature mass scales, in addition to the usual thermal mass scales. We extend the standard thermal resummations to such a situation, and discuss the 2-loop computations of the Higgs effective potential, and an effective 3d field theory for the electroweak phase transition, without carrying out high or low temperature expansions for the heavy masses. We also estimate the accuracy of the temperature expansions previously used for the MSSM electroweak phase transition in the presence of a heavy left-handed stop. We find that the low temperature limit of dealing with the left-handed stop is accurate up to surprisingly high temperatures.Comment: 20 pages; small clarifications added; to appear in Nucl.Phys.

Realistic Equations of State for the Primeval Universe

Early universe equations of state including realistic interactions between constituents are built up. Under certain reasonable assumptions, these equations are able to generate an inflationary regime prior to the nucleosynthesis period. The resulting accelerated expansion is intense enough to solve the flatness and horizon problems. In the cases of curvature parameter \kappa equal to 0 or +1, the model is able to avoid the initial singularity and offers a natural explanation for why the universe is in expansion.Comment: 32 pages, 5 figures. Citations added in this version. Accepted EPJ

РОЗВИТОК ЗМІСТУ ТА СТРУКТУРИ КРАЄЗНАЧОЇ ОСВІТИ В ОСНОВНІЙ ТА СТАРШІЙ ШКОЛІ УКРАЇНИ (1991-2010 рр.)

In the article changes are analysed in maintenance and structure of regional education at basic and senior school of Ukraine in a period from 1991 to 2010 it is Set that cardinal to the table of contents changes in the system of education began after proclamation of independence of Ukraine. They stipulated actualization of study of a particular region, that found the embodiment in further expansion of educational space, where the use of local material was foreseen. Yes, in the project of the program from history of Ukraine for 7-11 classes (in 1992) independent regional lessons were stored «Our edge». In the same time, their division into periods and placing some changed for to the classes. To the increase of amount of regional material in the programs objectively substituting of school course of history of the USSR promoted by the course of history of Ukraine. In the programs from biology 90th of study of the vegetable and animal world continued to be built on regional basis. The certificate of it was that the choice of objects for a study contacted with the specific of agricultural production of concrete locality. The excursions foreseen by the program acquainted students with many-sided nature of plants and animals of native edge, copulas between them and factors of lifeless nature. Practical works from biology it was continued to carry regional aspiration, as executed on local material. In offered by Department of education of Ukraine on 1995-1996 school year three variants of the programs from Ukrainian literature scalene regional work assignments were foreseen. It could be deeper working of work of writers-countrymen that was studied in accordance with the program, or acquaintances with writers, works of that do not enter to the programs, but life and work their related to certain locality. A teacher could acquaint students with work of modern local literati-beginners.At the beginning of 2000th substantial changes took place in the regional constituent of the school programs of basic and senior school. They were conditioned by Decree of President of Ukraine № 35/2001 from January, 23, 2001 «About measures in relation to support of regional motion in Ukraine». In this document specified on a necessity to provide development and including to the curricula and programs of general, out-of-school, and higher educational establishments of themes from the study of a particular region taking into account the specific of regions of Ukraine. In addition, the protracted development of state standards of general preparation of students after that maintenance of educational industries had to be built on national basis. On such conditions in the program from history in a release in 2001 the chronologic-successive construction of lessons was picked up thread «Our edge». Unchanging it remained and conceptual vision of task of study of a particular region in the course of geography of Ukraine is must provide the idea of students about the region, as component part of the state. In the program from biology of 2001 р. regional material came forward in quality of evident SE for the best realization of intercommunication of structure and functions of living organisms. He provided forming of ideas about an organism as integral system. Program from Ukrainian literature in 2001, as well as previous, took into account a requirement in the acquaintance of schoolchildren with history and culture of native edge by means of artistic word. In her the requirements of the obligatory use of regional material were stopped up on the lessons of literature.The duty changing in maintenance and structure of study of a particular region in the school programs were related to passing to the programs for 12-years-old school. The program worked out for 12-years-old school from history in 2005 contained certain innovations that had to strengthen the value of study of a particular region. In the program from geography attention to the study of native edge went down substantially. Due to the exception of regional material original programmers tried to decrease the overload of students, related to working of plenty of information. In the school program from Biology in 2005 the study of a particular region was confessed to one of components of maintenance of object in quality of the real objects and processes of wild-life. Looking after and opening them on your own students joined in activity, that had on an aim research of structure, properties, intercommunications. The program from Ukrainian literature in 2005 kept a previous structure. In every class the themes of lessons sneaked up «Literature of native edge» or after genres, or after chronologic periods.В статье на основе анализа школьных учебных программ охарактеризовано изменения в содержании и структуре краеведческого образования в основной и старшей школе Украины в период с 1991 по 2010 гг. Установлено, что до 2005 г. краеведческое образование развивалось достаточно динамично. Оно становится важным составляющим компонентом Государственных стандартов. Однако, уже к концу первого десятилетия ХХІ ст. в программах предметов инвариаптивной части учебного плана наблюдается процесс свертывания краеведческого образования.У статті на основі аналізу шкільних навчальних програм охарактеризовано зміни у змісті та структурі краєзнавчої освіти в основній та старшій школі України у період з 1991 по 2010 рр. Встановлено, що до 2005 р. краєзнавча освіта розвивалася достатньо динамічно. Вона стає важливим складовим компонентом Державних стандартів. Проте, вже на кінець першого десятиліття ХХІ ст. у програмах предметів інваріативної частини навчального плану спостерігається процес згортання краєзнавчої освіти

Conditions of research work of teachers of Departments of History of Pedagogical Institutes of Ukraine in the first postwar years (the second half of the 1940s - the beginning of the 1950s. xx century)

On the basis of archival sources material, financial and household factors are characterized. They formed the conditions for the research work of teachers of the departments of history of pedagogical institutes of Ukraine. The state of providing the scientific literature of historical offices and libraries is revealed. It was found that the proper conditions for work in the history rooms and libraries of pedagogical institutes were created only at the Kyiv Pedagogical Institute. In provincial pedagogical institutes, the situation with the scientific literature seemed much worse. To overcome the problems with the scientific literature, the state began to allocate some funds for the purchase of domestic and foreign publications. The level of funding for scientific activities has been clarified. It is established that the focus of attention of the Directorate of the Pedagogical Institutes of Ukraine was primarily the educational process and work on the restoration of the destroyed material base. Funds for business trips were not enough. Funds were not enough even to secure approved research plans. The reasons which influenced the budget of time of scientific work of teachers-historians were determined. The major impediments to the scientific work of the teachers of the departments of the history of pedagogical institutes were their heavy workload of teaching and community work. Typographic possibilities for printing the results of scientific work are investigated. Most pedagogical institutes were found to lack their own printing facilities. Delay with the printing of monographs, articles, abstracts meant the transfer of dissertations to a later date. The pathetic material status of teachers of pedagogical institutes also had a negative impact on scientific activity. There were no laboratories for the study of history, archeology, and ethnography in pedagogical institutes. This reduced the level of research and prevented the strengthening of the material base. The departments of history of pedagogical institutes and self-calculated researches were not conducted. The conducted research helps to form an understanding of the conditions of development of historical science in pedagogical institutes.</jats:p