423 research outputs found
Новый взгляд на структуру содержания непрерывного естественнонаучного образования
No full textApplying of the synergetics and V. S. Lednev ’s approach evolution to education content analysis result in a conclusion the education content structure is fracta
Новый взгляд на структуру содержания непрерывного естественнонаучного образования
Get PDFApplying of the synergetics and V. S. Lednev ’s approach evolution to education content analysis result in a conclusion the education content structure is fracta
Influence of Calcium Resonance-Tuned Low-Frequency Magnetic Fields on Daphnia magna
No full textA biophysical model for calculating the effective parameters of low-frequency magnetic fields was developed by Lednev based on summarized empirical data. According to this model, calcium ions as enzyme cofactors can be the primary target of low-frequency magnetic fields with different parameters tuned to calcium resonance. However, the effects of calcium-resonant combinations of static and alternating magnetic fields that correspond to Lednev’s model and differ by order in frequency and intensity were not studied. It does not allow for confidently discussing the primary targets of low-frequency magnetic fields in terms of the magnetic influence on ions-enzyme cofactors. To clarify this issue, we examined the response of freshwater crustaceans Daphnia magna to the impact of combinations of magnetic fields targeted to calcium ions in enzymes according to Lednev’s model that differ in order of magnitude. Life-history traits and biochemical parameters were evaluated. Exposure of daphnids to both combinations of magnetic fields led to a long-term delay of the first brood release, an increase in the brood size, a decrease in the number of broods, and the period between broods. The amylolytic activity, proteolytic activity, and sucrase activity significantly decreased in whole-body homogenates of crustaceans in response to both combinations of magnetic fields. The similarity in the sets of revealed effects assumes that different magnetic fields tuned to calcium ions in biomolecules can affect the same primary molecular target. The results suggest that the low-frequency magnetic fields with parameters corresponding to Lednev’s model of interaction between biological molecules and ions can remain effective with a significant decrease in the static magnetic background
Undoped CsI calorimeter for the K0 L !p0n¯n experiment at KEK-PS
No full textAn electromagnetic calorimeter consisting of 576 undoped CsI crystals has been used to search for the K0 L ! p0n¯n decay at the KEK 12-GeV proton synchrotron (E391a). The calorimeter is placed in a vacuum of lower than 10 1 Pa.Special energy & timing calibrations have been performed. The energy calibration started from a check of the linearit
for nine sample crystals using an electron beam. Then, after mounting all crystals in the E391a detector, we made an in situ calibration of the energy by using cosmic ray & punch-through muons. The gain constants obtained from both muons agree with each other with an accuracy of 2% ðsÞ. They were further refined by using gg samples from p0’s produced off an aluminum plate (5-mm thick) hit by neutral beam particles. Using the final gain constants, we obtained a K0 L mass resolution of 4.3 MeV/c2 ðsÞ for the K0 L ! p0p0p0 decay. Also, using the timing constants measured for cosmic rays, we obtained a resolution of 0.51 ns ðsÞ for the timing difference among six g’s in the K0 L !p0p0p0 decay
"Motivační Nástroje A Jejich Vliv Na Práci Personálu Organizace"
No full textMotivace a aplikace motivačních nástrojů v naší době se stala jedním z nejdůležitějších aspektů fungování každé organizace, neboť výrazně ovlivňuje produktivitu a kvalitu vyráběných produktů a služeb.Předmětem mé bakalářské práce jsou organizační a manažerské aspekty motivace zaměstnanců.Hlavním cílem práce je studium motivačních nástrojů společnosti "Inforcer" a jejich vliv na práci zaměstnanců.Ve své práci jsme studovali teoretické základy motivace, základní teorie motivace a analyzovali systém motivace a využití motivačních nástrojů ve firmě "Enforcer" prostřednictvím prizmu spokojenosti s různými aspekty práce v organizaci. Ve své analýze vycházel z empirického pozorování, dotazování a rozhovorů s výkonným ředitelem. Rovněž byly zjištěny nedostatky v systému motivace a navrhované nástroje, které mohou efektivněji stimulovat práci zaměstnanců.Motivation and application of motivational tools in our time has become one of the most important aspects in the functioning of any organization, since it greatly affects the productivity and quality of the products and services produced.The subject of my bachelor's work is the organizational and managerial aspects of employee motivation.The main purpose of the bachelor's work is to study the motivational tools of the company "Inforcer" and their impact on the work of employee.In my work, we studied the theoretical foundations of motivation, fundamental theories of motivation and analyzed the system of motivation and the use of motivation tools in the Inforcer LLC company through the prism of satisfaction with various aspects of work in an organization. In his analysis, he relied on empirical observation, questioning, and interviews with the executive director. Were also identified shortcomings in the system of motivation and proposed tools that can help more effectively stimulate the work of employees.Мотивация и применение мотивационных инструментов в наше время стало одним из самых важных аспектов в функционировании любой организации, так как это сильно влияет на производительность и качество выпускаемых продукций и услуг.Предметом моей бакалаврской работы является организационно-управленческие аспекты мотивации труда сотрудников.Главная цель в работе является исследование мотивационных инструментов компании ООО "Инфорсер" и их влияние на работу персонала.В моей работе были изучены теоретические основы мотивации, существующие фундаментальные теории мотивации и был произведен анализ системы мотивации и применения инструментов мотивации в компании ООО "Инфорсер" через призму удовлетворенности различными аспектами работы в организации. В своем анализе опирался на эмпирическое наблюдение, анкетирование и интервью с исполнительным директором. Также были выявлены недочеты в системе мотивации и предложены инструменты, которые могут помочь более эффективно стимулировать на работу сотрудников
"Motivační Nástroje A Jejich Vliv Na Práci Personálu Organizace"
No full textMotivace a aplikace motivačních nástrojů v naší době se stala jedním z nejdůležitějších aspektů fungování každé organizace, neboť výrazně ovlivňuje produktivitu a kvalitu vyráběných produktů a služeb.Předmětem mé bakalářské práce jsou organizační a manažerské aspekty motivace zaměstnanců.Hlavním cílem práce je studium motivačních nástrojů společnosti "Inforcer" a jejich vliv na práci zaměstnanců.Ve své práci jsme studovali teoretické základy motivace, základní teorie motivace a analyzovali systém motivace a využití motivačních nástrojů ve firmě "Enforcer" prostřednictvím prizmu spokojenosti s různými aspekty práce v organizaci. Ve své analýze vycházel z empirického pozorování, dotazování a rozhovorů s výkonným ředitelem. Rovněž byly zjištěny nedostatky v systému motivace a navrhované nástroje, které mohou efektivněji stimulovat práci zaměstnanců.Motivation and application of motivational tools in our time has become one of the most important aspects in the functioning of any organization, since it greatly affects the productivity and quality of the products and services produced.The subject of my bachelor's work is the organizational and managerial aspects of employee motivation.The main purpose of the bachelor's work is to study the motivational tools of the company "Inforcer" and their impact on the work of employee.In my work, we studied the theoretical foundations of motivation, fundamental theories of motivation and analyzed the system of motivation and the use of motivation tools in the Inforcer LLC company through the prism of satisfaction with various aspects of work in an organization. In his analysis, he relied on empirical observation, questioning, and interviews with the executive director. Were also identified shortcomings in the system of motivation and proposed tools that can help more effectively stimulate the work of employees.Мотивация и применение мотивационных инструментов в наше время стало одним из самых важных аспектов в функционировании любой организации, так как это сильно влияет на производительность и качество выпускаемых продукций и услуг.Предметом моей бакалаврской работы является организационно-управленческие аспекты мотивации труда сотрудников.Главная цель в работе является исследование мотивационных инструментов компании ООО "Инфорсер" и их влияние на работу персонала.В моей работе были изучены теоретические основы мотивации, существующие фундаментальные теории мотивации и был произведен анализ системы мотивации и применения инструментов мотивации в компании ООО "Инфорсер" через призму удовлетворенности различными аспектами работы в организации. В своем анализе опирался на эмпирическое наблюдение, анкетирование и интервью с исполнительным директором. Также были выявлены недочеты в системе мотивации и предложены инструменты, которые могут помочь более эффективно стимулировать на работу сотрудников
Time dependent dielectric breakdown in novel GaN metal-insulator-semiconductor high electron mobility transistors
No full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018Cataloged from student-submitted PDF version of thesis.Includes bibliographical references (pages 83-84).Power electronics is expanding as we automate and electrify our households and step into mainstream electric vehicles. Recently, GaN metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) have been increasing in popularity for high voltage power electronics applications because they combine high electron mobility with low gate leakage, increasing efficiency. This comes with the tradeoff of increased reliability concerns to be addressed before the widespread commercialization of GaN MIS-HEMTs. This thesis investigates one failure mechanism found in prototype industrial GaN MIS-HEMTs: time dependent dielectric breakdown (TDDB) of the gate insulator. TDDB occurs when a high electric field causes an accumulation of defects in the gate dielectric, forming a conducting path and rendering the device unusable. This is of major concern in GaN MIS-HEMTs because of their role as switches in high voltage circuits. In this work, we develop testing methodologies to address reticle-to-reticle variations and we estimate the lifetime of novel GaN MIS-HEMTs by performing measurements at different stress levels and temperatures in the ON and OFF-states.by Alexander I. Lednev.M. Eng.M.Eng. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Scienc
Frequency Dependent Alterations of S. Cerevisiae Proliferation Due to LF EMF Exposure
Get PDFThe presented paper deals with low frequency electromagnetic field application on Saccharomyces cerevisiae cells. Experiments performed through wide frequency range have shown selective frequency dependent biological response, which could be successfully predicted by ion parametric resonance theory proposed by V. V. Lednev. Although observed results give satisfying answer to questions whether or not electromagnetic fields could affect cell cultures even at non-thermal levels, the research presented herein opens a multitude of questions about the exact physical mechanisms underlying the observed microorganism behavior, as the theory discussed within the scope of this article is still not completely unambiguous
Research on the Effectiveness of Students’ Communicative Competence Formation
Get PDFThe formation of communicative competence among university students is becoming especially relevant in the uncertain and changeable world. In the study, competencies of a general nature are called invariant by the theory of the structure of the content of education, developed by Academician V. S. Lednev. The paper focuses on the effectiveness of the formation of students’ invariant communicative competence in a nontraditional form of education - joint training of Russian and international students. The results of the study show that co-education of Russian and foreign students contributes to the development of their invariant communicative competencies better than traditional education. The novelty of the research is the formation of students’ invariant communicative competence occurs in conditions different from traditional teaching. Namely, it occurs in the process of joint training of Russian students with foreign citizens. Research materials can be used in the work of higher educational institutions
A Genome-Wide Association Study of Sprint Performance in Elite Youth Football Players
No full textPickering, C, Suraci, B, Semenova, EA, Boulygina, EA, Kostryukova, ES, Kulemin, NA, Borisov, OV, Khabibova, SA, Larin, AK, Pavlenko, AV, Lyubaeva, EV, Popov, DV, Lysenko, EA, Vepkhvadze, TF, Lednev, EM, Leońska-Duniec, A, Pająk, B, Chycki, J, Moska, W, Lulińska-Kuklik, E, Dornowski, M, Maszczyk, A, Bradley, B, Kana-ah, A, Cięszczyk, P, Generozov, EV, and Ahmetov, II. A genome-wide association study of sprint performance in elite youth football players. J Strength Cond Res 33(9): 2344-2351, 2019-Sprint speed is an important component of football performance, with teams often placing a high value on sprint and acceleration ability. The aim of this study was to undertake the first genome-wide association study to identify genetic variants associated with sprint test performance in elite youth football players and to further validate the obtained results in additional studies. Using micro-array data (600 K-1.14 M single nucleotide polymorphisms [SNPs]) of 1,206 subjects, we identified 12 SNPs with suggestive significance after passing replication criteria. The polymorphism rs55743914 located in the PTPRK gene was found as the most significant for 5-m sprint test (p = 7.7 × 10). Seven of the discovered SNPs were also associated with sprint test performance in a cohort of 126 Polish women, and 4 were associated with power athlete status in a cohort of 399 elite Russian athletes. Six SNPs were associated with muscle fiber type in a cohort of 96 Russian subjects. We also examined genotype distributions and possible associations for 16 SNPs previously linked with sprint performance. Four SNPs (AGT rs699, HSD17B14 rs7247312, IGF2 rs680, and IL6 rs1800795) were associated with sprint test performance in this cohort. In addition, the G alleles of 2 SNPs in ADRB2 (rs1042713 & rs1042714) were significantly over-represented in these players compared with British and European controls. These results suggest that there is a genetic influence on sprint test performance in footballers, and identifies some of the genetic variants that help explain this influence
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