2,568 research outputs found
Principal Aspects of Olbian History in Works of L.M. Slavin
No full textСтаттю присвячено загальному огляду головних питань з історії Ольвії, які вивчав Л.М. Славін, у контексті
минулих і сучасних досліджень.Научная деятельность Л.М. Славина была всесторонней, однако на первое место он всегда ставил интерпретацию и
хронологию археологических памятников. Вместе с тем ему принадлежит много исторических работ. Самой важной
научно-теоретической разработкой Л.М. Славина была общеисторическая периодизация Ольвии. Л.М. Славин первым
обосновал принципы создания исторической периодизации. Он считал целесообразным разделить историю Ольвии
на ряд периодов, качественно отличающихся друг от друга прежде всего по признакам экономического развития, социально-политической жизни, исторических судеб. Ученый впервые попытался применить комплексную методику
исследования источников для каждого из пяти выделенных им периодов с их подробной характеристикой. В своих
обобщающих работах Л.М. Славин оставил много убедительных выводов и соображений относительно разных вопросов
исторического, экономического и культурного развития Ольвии.Research activity of L.M. Slavin was comprehensive, though his principal aim was the interpretation and chronology
of archaeological monuments. In addition, he was the author of many historical works. The most important theoretical
research development of L.M. Slavin was the general historical periodization of Olbia. L.M. Slavin was the first
who substantiated the principles for historical periodization. He considered that it was expedient to divide the
history of Olbia into several periods first of all on the basis of the evidence of economic development, social and
political life, and historic destinies. Also he tried to apply the comprehensive methodology of monuments research
for each of five distinguished periods and for their detailed description
Personality of L.M. Slavin on the materials of Scientific Archive of IA NAS of Ukraine
No full textСтаттю написано на основі архівних матеріалів, що змальовують Л.М. Славіна як вченого і неординарну особистість. У науковий обіг введено невідомі архівні матеріали.В его жизни было четыре главных города: Витебск, где он родился и вырос; Ленинград, в котором прошли его
студенческие годы и началась научная карьера; Киев, где он жил и работал; древняя Ольвия, изучению которой
он посвятил свою жизнь. Уделяя большое внимание подготовке молодых кадров, Л.М. Славин преподавал в Киевском государственном университете им. Т.Г. Шевченко. В первые послевоенные годы Л.М. Славин был директором, а позже — заместителем директора Института археологии УССР; одновременно он возглавлял сектор скифо-античной археологии. Л.М. Славин — автор 151 научной публикации.In the life of L.M. Slavin there were four main cities: Vitebsk, where he was born and grew up, Leningrad, where his
student years passed and the scientific career started, Kyiv, where he worked, and ancient Olbia, to study of which he
devoted all his life. Placing high emphasis on teaching new personnel, L.M. Slavin taught at the State Taras Shevchenko
University of Kyiv. He was an advisor of many authors of dissertations. In early post-war years L.M. Slavin was the
director and later the assistant of a director of Institute of Archaeology of USSR. At the same time he was the head of the
department of Scythian and Sarmatian archaeology. L.M. Slavin was an author of 151 scientific publications
A review of the role of soluble fiber in health with specific reference to wheat dextrin.
No full textA Synthesis of Quantitative Research on Programs For Struggling Readers in Elementary Schools
No full textThis article reviews research on the outcomes of diverse reading programs on the achievement of struggling readers in elementary schools. Sixty-five studies of 51 different programs met rigorous standards. Eighty-three percent were randomized experiments and 17% quasi-experiments. Outcomes were positive for one-to-one tutoring and were positive but not as large for one-to-small group tutoring. There were no differences in outcomes between teachers and teaching assistants as tutors. Whole-class approaches (mostly cooperative learning) and whole-class/whole-school approaches incorporating tutoring for struggling readers obtained outcomes for struggling readers as large as those found for all forms of tutoring, on average, and benefitted many more students. Technology-supported adaptive instruction did not have significant positive outcomes for struggling readers, however. In agreement with previous reviews, this synthesis found that substantial impacts can be obtained for struggling readers with interventions aligned within a response to intervention network
Effective Programs in Elementary Mathematics: A Meta-Analysis
No full textThis article reviews research on the achievement outcomes of elementary mathematics programs. 87 rigorous experimental studies evaluated 66 programs in grades K-5. Programs were organized in 6 categories. Particularly positive outcomes were found for tutoring programs (ES=+0.20, k=22). Positive outcomes were also seen in studies focused on professional development for classroom organization and management (e.g., cooperative learning) (ES=+0.19, k=7). Professional development approaches focused on helping teachers gain in understanding of mathematics content and pedagogy had little impact on student achievement. Professional development intended to help in the adoption of new curricula had a small but significant impact for traditional (non-digital) curricula (ES=+0.12, k=7), but not for digital curricula. Traditional and digital curricula with limited professional development, as well as benchmark assessment programs, found few positive effects
The relationship between inflammatory markers and voxel-based gray matter volumes in nondemented older adults
No full textAbstract not availableHaobo Zhang, Perminder S. Sachdev, Wei Wen, John D. Crawford, Henry Brodaty, Bernard T. Baune, Nicole A. Kochan, Melissa J. Slavin, Simone Reppermund, Kristan Kang, Julian N. Trollo
Derived data for: 'Does Reconnection Only Occur at Points of Maximum Shear on Mercury's Dayside Magnetopause?'
No full textDerived data for the manuscript entitled ‘Does Reconnection Only Occur at Points of Maximum Shear on Mercury’s Dayside Magnetopause?’.</span
Stenotrophomonas maltophilia: emerging disease patterns and challenges for treatment
No full textStenotrophomonas maltophilia is a ubiquitous organism associated with opportunistic infections. In the immunocompromised host, increasing prevalence and severity of illness is observed, particularly opportunistic bloodstream infections and pneumonia syndromes. In this article, the classification and microbiology are outlined, together with clinical presentation, outcomes and management of infections due to S. maltophilia. Although virulence mechanisms and the genetic basis of antibiotic resistance have been identified, a role for standardized and uniform reporting of antibiotic sensitivity is not defined. Infections due to S. maltophilia have traditionally been treated with trimethoprim–sulfamethoxazole, ticarcillin–clavulanic acid, or fluoroquinolone agents. The use of combination therapies, newer fluoroquinolone agents and tetracycline derivatives is discussed. Finally, measures to prevent transmission of S. maltophilia within healthcare facilities are reported, especially in at-risk patient populations.Iain J. Abbott, Monica A. Slavin, John D. Turnidge, Karin A. Thursky and Leon J. Wort
Cassini Observations of Plasmoid Structure and Dynamics: Implications for the Role of Magnetic Reconnection in Magnetospheric Circulation at Saturn
No full textWe survey the Cassini magnetometer data during the deep tail orbits in 2006, and find 34 direct encounters with plasmoids. They occur as single, isolated events but also in groups of two or more plasmoids as is frequently observed at Earth . We show a case study example of three such plasmoids over three hours, where we estimate an upper limit of 5.68 GWb of flux closure, and derive a reconnection rate over this interval of 526 kV. We show the results of a superposed epoch analysis of al1 34 plasmoids indicating that, on average, plasmoids at Saturn are approix.8 min in duration and they tend toward a loop-like, as opposed to flux rope-like topology, with little or no axial core magnetic field. Our analysis shows that plasmoids at Saturn are followed by an extended interval of the post-plasmoid plasma sheet (PPPS) lasting approx.58 min. The average open magnetic flux disconnected by the continued reconnet:tion following plasmoid formation that creates the PPPS is approx.3 GWb. We calculate expected recurrence rates for plasmoids, and compare these with a derived observational recurrence rate of one plasmoid every approx.2.4 days, explaining the reasons why the spacecraft has not observed as many plasmoids as we predict will be released. We conclude that the Cassini magnetometer measurements require a combination of Vasyliunas-type closed-flux plasma sheet and Dungey-type open-flux lobe reconnection to account for the observed properties of the plasmoids and PPPS in Saturn's magnetotail
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