Lithuanian University of Educational Sciences

www.leu.lt/en/
Vilnius, Lithuania

Lithuanian University of Educational science is a university in Vilnius, Lithuania, which specializes in preparing school teachers and other educators. As of March 2013 it had approximately 8,500 students and 528 members of academic staff. Wikipedia.

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Mazeika D.,Vilnius Gediminas Technical University | Vasiljev P.,Lithuanian University of Educational Sciences
Mechanical Systems and Signal Processing | Year: 2013

Investigation of a novel design tiny piezoelectric inertial motor is given in the paper. Operation principle of the motor is based on inertial motion of the slider applying sticks and slip phases between stator and slider. Piezoelectric motor has simple design and consists of the slider with a bimorph piezoceramic disc and the clamped cylindrical shaft used for sliding. The advantage of the motor design is the self-moving slider that obtains bidirectional inertial motion when the saw tooth or the pulse type excitation signal is applied at resonant frequency. Numerical investigation of the piezoelectric motor based on finite elements method was performed to analyse natural frequencies, modal shapes of the motor and slider response to the different excitation regimes. The influence of the Coulomb friction on the velocity of the slider is analysed. A prototype inertial piezoelectric motor was built, and measurements of electrical and mechanical characteristics were performed. The results of numerical and experimental study are discussed. © 2011 Elsevier Ltd. All rights reserved.


Dadelo S.,Vilnius Gediminas Technical University | Turskis Z.,Vilnius Gediminas Technical University | Zavadskas E.K.,Vilnius Gediminas Technical University | Dadeliene R.,Lithuanian University of Educational Sciences
Expert Systems with Applications | Year: 2014

Basketball is one of the most popular sports games in the world. Professional basketball has become a significant contributor to global economics and business. Considerable funds attracted by the game motivate participants of the sporting process (players, coaches, club owners, administration and etc.) to strive for better athletic results, this way promoting internal and external rivalry. A large number of players and the desire of teams to attract better team members as well as improve the quality of the already available athletes, boost the use of assessment and rating processes. The most popular and widely used player rating systems are based on performance statistics, which reflect situational factors of the game. Most specialists believe that such systems lack objectivity. Meanwhile, the Authors suggest a systematic solution, i.e. an adjusted well-known TOPSIS method and principles for the design of the algorithm based on the method. As a consistent problem solving system, algorithms based on multi-criteria decision-making are regarded to be simple and clear, suitable to substantiate solutions as well as easily applied in practise. Methodologies used by the Authors will help ensuring a greater efficiency of player and team rating, more accurate prognoses of sports results, team formation, and optimisation of the training process considering individualism of team players and encouraging their versatility, i.e. conformity to general physical preparedness norms of the team. The suggested research methods could be used in other sports. Furthermore, these principles could be used in business management for team formation. © 2014 Elsevier Ltd. All rights reserved.


Milasius K.,Lithuanian University of Educational Sciences
Novosibirsk State Pedagogical University Bulletin | Year: 2017

Introduction. The aim of the present study is to determine the effect of food supplement ARGI+ and ARGI+ in combination with Multi Maca on physical and functional capacity of athletes to work in various energy production zones. Materials and Methods. Thirty-six apparently healthy, injury-free in, at least, one season and physically active men volunteered and were randomly divided into three groups, as well as participated in the double-blind study. There were no significant differences between groups for any of physical development variables, indicating homogeneity between groups. First group E1 subjects (n = 12) took the supplement ARGI+ 10g/day for 20 days. Second group E2 subjects (n = 12) took the supplement ARGI+ 10g/day and Multi Maca 2 tablets/day for 20 days. Third group K subjects consumed lactose as a placebo (PL) daily. Subjects performed the first testing session T1 one day before the intake of dietary supplements for a period of twenty days. One day after the second testing session T2 performed. Results. Therefore, based on our collective data, we conclude that 20 days use of ARGI+ and ARGI+ in combination with Multi Maca supplementation has influence on athletes' physical capacity in short-Term exercise. Results of our study demonstrate significant increases of single muscle capacity power and anaerobic alactic muscle power in group E1 subjects, who took the supplement ARGI+ 10g/day. These data of the second group E2 subjects, who took the supplement ARGI+ 10g/day and Multi Maca 2 tablets/day for twenty days period increased less. Absolute and relative maximal moment muscle capacity, using 10 s maximal effort ergometry works in both experimental groups increased. Conclusions. Supplementation of ARGI+ in combination with Multi Maca for a period of twenty days more effectively influenced cardiovascular system capacity and aerobic capacity than supplemen-Tation ARGI+.


Sruoga V.,Lithuanian University of Educational Sciences | De Prins J.,Royal Museum for Central Africa
Zootaxa | Year: 2011

No Elachistinae have ever been recorded from Cameroon and only one species (Eretmograptis coniodoxa) was described by Meyrick in 1938 from the Democratic Republic of the Congo. Here, we present ten new species of the subfamily Elachistinae from Central Africa: Elachista cordata sp. n., Urodeta absidata sp. n., U. aculeata sp. n., U. crenata sp. n., U. cuspidis sp. n.U. faro sp. n., U. tortuosa sp. n. from Cameroon and U. acerba sp. n., U. bucera sp. n., U. talea sp. n. from the Democratic Republic of the Congo. The new species are diagnosed and illustrated with photographs of the adults and genitalia. Copyright © 2011 · Magnolia Press.


De Prins J.,Royal Museum for Central Africa | Sruoga V.,Lithuanian University of Educational Sciences
Zootaxa | Year: 2012

The taxonomic history of the genus Urodeta Stainton 1869 (Lepidoptera: Elachistidae: Elachistinae) is presented. Three new species: Urodeta acinacella Sruoga et De Prins, sp. nov., U. quadrifida Sruoga et De Prins, sp. nov. and U. trilobata Sruoga et De Prins, sp. nov., from South Africa are described. The new species are diagnosed and illustrated with photographs of the adults and genitalia. A global, annotated catalogue of the Urodeta species diversity is presented. The impact of formerly published taxonomic decisions on the position of Urodeta within Gelechioidea is discussed. Copyright © 2012 - Magnolia Press .


Stonis J.R.,Lithuanian University of Educational Sciences | Rociene A.,Lithuanian University of Educational Sciences
Zootaxa | Year: 2013

East Asia is famous for its tremendous overall biodiversity, and the Nepticulidae are no exception. The majority of the currently known fauna of Nepticulidae was described in 1984-1987 by several authors, but R. Puplesis is the author of the largest number of new species from the region. Unfortunately, the genitalia of all species from Primorskiy Kray, Sakhalin, and the Kuril Islands were described from temporary slides in glycerol, and therefore, the drawings do not always show all details of genital armature or may be confusing. Without the baseline data providing morphology of genital armature of type material, it is impossible to continue studies on the East Asiatic fauna of Nepticulidae. In this paper we reexamine and document for the first time with photographs the types of 56 species described by R. Puplesis from the Russian Far East. Details of the morphology is updated for most of the re-examined species. Copyright © 2013 Magnolia Press.


Rociene A.,Lithuanian University of Educational Sciences | Stonis J.R.,Lithuanian University of Educational Sciences
Zootaxa | Year: 2013

Over the few couple of decades, the Nepticulidae of East Asia have been the subject of continuing investigation. Male genitalia of the nepticulid species described from Primorskiy Kray (the Russian Far East) were re-examined in the preced-ing paper in this journal. The present paper continues our study on the diversity and systematics of the Nepticulidae of East Asia based on a sample of specimens collected in 1974-1990 at various sites of the southern part of Primorskiy Kray and treats 35 species: two new taxa (Ectoedemia ortiva sp. nov. and E. species 219) and 33 other species. Seventeen of them are briefly discussed and illustrated with photographs of male genitalia. Two new synonyms are proposed, and three new distribution records are provided. We also provide an updated checklist of the Nepticulidae of East Asia, which com-prises 105 species; 67 species occur in the Russian Far East and 53 in Japan (20 of which occur both in Japan and Russia). Species with Euro-East Asiatic distribution currently comprise 11% of the Japanese fauna and 16% of the continental fau-na of the Russian Far East, Primorskiy Kray. Copyright © 2013 Magnolia Press.


The distribution of quantitative parameters of Lithuanian relief is analysed in different geomorphologic complexes: glacial edge, ground moraine, glaciofluvial, glaciolacustrine, aeolian, fluvial, littoral, erosion, karst and organogenic. Analysis of geodynamic processes taking place in the Lithuanian territory revealed quantitative distribution and intensity of these processes and a possible impact on relief transformation. The obtained results led to the following conclusions: erosion is the most intensive factor of Lithuanian relief transformation. It occurs in almost 50% of the Lithuanian area (32133 km2). The volume of all deposits re-deposited by erosion reaches 47.6 million m3 sediments per year. The thickness of denudation layer reaches up to 0.5 mm/year.


Pipinys P.,Lithuanian University of Educational Sciences | Kiveris A.,Lithuanian University of Educational Sciences
Central European Journal of Physics | Year: 2012

We review and compare two models recently used to describe electronic transport in polymer fibers/nanotubes and carbon nanotubes including graphene nanoribbons, namely, variable range hopping (VRH) in different versions and their modifications on the one hand and electric-field-induced phonon-assisted tunneling (PhAT) on the other hand. The VRH model is mainly approved on behalf of the results of temperature dependences. However, the field dependencies of the conductivity in the framework of this model remain practically unexplained. At the same time, the PhAT model describes properly not only temperature dependence of conductivity measured in a wide temperature range, but also conductivity/current dependences on field strength using the same set of parameters characterizing the materials © 2012 Versita Warsaw and Springer-Verlag Wien.


Jonsson P.,Malmö University | Alkauskas A.,Lithuanian University of Educational Sciences | Gaigalas G.,Vilnius University
Atomic Data and Nuclear Data Tables | Year: 2013

Energies and E1, M1, E2 transition rates from relativistic configuration interaction calculations are reported for the states of the (1s2)2s22p5 and 2s2p6 configurations in all fluorine-like ions between Si VI and W LXVI. Valence, core-valence, and core-core correlation effects were accounted for through single and double excitation expansions to increasing sets of active orbitals. © 2013 Elsevier Inc.

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