Search results for "Abilities"
showing 10 items of 538 documents
A Time-Non-Homogeneous Double-Ended Queue with Failures and Repairs and Its Continuous Approximation
2018
We consider a time-non-homogeneous double-ended queue subject to catastrophes and repairs. The catastrophes occur according to a non-homogeneous Poisson process and lead the system into a state of failure. Instantaneously, the system is put under repair, such that repair time is governed by a time-varying intensity function. We analyze the transient and the asymptotic behavior of the queueing system. Moreover, we derive a heavy-traffic approximation that allows approximating the state of the systems by a time-non-homogeneous Wiener process subject to jumps to a spurious state (due to catastrophes) and random returns to the zero state (due to repairs). Special attention is devoted to the cas…
Improving Estimates Accuracy of Voter Transitions. Two New Algorithms for Ecological Inference Based on Linear Programming
2022
The estimation of RxC ecological inference contingency tables from aggregate data is one of the most salient and challenging problems in the field of quantitative social sciences, with major solutions proposed from both the ecological regression and the mathematical programming frameworks. In recent decades, there has been a drive to find solutions stemming from the former, with the latter being less active. From the mathematical programming framework, this paper suggests a new direction for tackling this problem. For the first time in the literature, a procedure based on linear programming is proposed to attain estimates of local contingency tables. Based on this and the homogeneity hypot…
Three-dimensional core-collapse supernovae with complex magnetic structures: I. Explosion dynamics
2021
Magnetic fields can play a major role in the dynamics of outstanding explosions associated to violent events such as GRBs and hypernovae, since they provide a natural mechanism to harness the rotational energy of the central proto-neutron star and power relativistic jets through the stellar progenitor. As the structure of such fields is quite uncertain, most numerical models of MHD-driven core-collapse supernovae consider an aligned dipole as initial magnetic field, while the field's morphology can actually be much more complex. We present three-dimensional simulations of core-collapse supernovae with more realistic magnetic structures, such as quadrupolar fields and, for the first time, an…
Umorzenie zobowiązań upadłego a zabezpieczenie rzeczowe na mieniu osób trzecich
2018
Foreign language learning disabilities : theoretical and practical tools for English teachers in Finnish upper secondary schools
2005
Motoristen taitojen arviointiin ja niihin liittyvien vaikeuksien tunnistamiseen käytettävän testin kehittäminen 4-6-vuotiaille lapsille
2015
The aim of the research was to develop a motor skills assessment tool for 4-6- year-old children that would include test items for body awareness and basic motor skills, therefore demonstrating the children’s motor performance and related problems and supporting the planning of training programs. First, the contents of nine existing motor skills assessment tools were analyzed. Then, a new pilot test was prepared to test a sample group of 906 children (the mean age 5.1 years, SD 0.41, 48% boys, 52% girls). For the reliability and validity analysis, 55 simultaneous coding by two testers (r=.844 -.992, p=.01), 30 retests (r=.823, p = .01), 38 video analyses (test-retest and inter-tester consta…
Vidējā pirmsskolas vecuma bērnu pašapkalpošanās prasmju pilnveide lomu rotaļās
2019
Bakalaura darba temats – Vidējā pirmsskolas vecumā bērnu pašapkalpošanās prasmes pilnveide lomu rotaļās. Darba autore – Aļina Artjuka Darba zinātniskais vadītājs – prof. Dr.paed. Maruta Sīle Pētījuma objekts – Lomu rotaļa Pētījuma priekšmets – vidējā pirmsskolas vecumā bērnu pašapkalpošanas prasmes Pētījuma mērķis – pētīt četrgadīgu bērnu pašapkalpošanas prasmes pilnveides iespējas lomu rotaļās Pētījuma hipotēze - četrgadīgu bērnu pašapkalpošanas prasmes pilnveide lomu rotaļās būs sekmīgāka, ja •bērnu interesēs lomu rotaļu saturs un tematika; •tiks vaicāts un cienīts bērnu viedoklis; •ģimenē un pirmsskolas izglītības iestādē būs vienādas prasības Pētījuma uzdevumi: 1.Analizēt pedagoģijas un…
Design of a Virtual Learning Environment for Students with Special Needs
2006
The European Social Fund-supported Portland Partnership project developed a computer-based virtual learning environment (VLE) to benefit students with cognitive and physical disabilities. This system provided students with access to a suite of software programs to teach them basic/essential skills needed for everyday life and to use information and communications technology (ICT). The VLE can be customized to meet individual students’ needs by selecting an input device, adjusting its setting, or choosing a symbol set to support on-screen text. The learning programs within the VLE required careful design to make them stimulating and beneficial to students who have diverse health conditions a…
Regularity for nonlinear stochastic games
2015
We establish regularity for functions satisfying a dynamic programming equation, which may arise for example from stochastic games or discretization schemes. Our results can also be utilized in obtaining regularity and existence results for the corresponding partial differential equations. peerReviewed