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showing 10 items of 2078 documents
Statistics Anxiety and Self-Concept of Beginning Students in the Social Sciences - A Matter of Gender and Socio-Cultural Background?
2015
Angst im Fach Statistik und statistisches Selbstkonzept von Studienanfangerinnen und -anfangern in den Sozialwissenschaften - eine Frage des Geschlechts und des sozio-kulturellen Hintergrunds? Es ist weitgehend unerforscht, ob bestimmte Studierendengruppen in den Sozialwissenschaften ihr Studium mit unterschiedlichen Einstellungen zum Fach Statistik beginnen. Im Folgenden wird untersucht, inwieweit das Geschlecht und der sozio-kulturelle Hintergrund einen Einfluss auf die Angst und das Selbstkonzept im Fach Statistik zu Studienbeginn haben. Eine Befragung von 504 Studierenden im ersten Studienjahr an zwei Universitaten und zwei Studiengangen zeigt, dass zwischen den Geschlechtern deutliche …
Understanding the Context of Teacher Professionalism in Education Systems Undergoing Transition – Kosovo Case
2014
Abstract This qualitative case study examines teacher professionalism in Kosovo in light of its rapidly developing education system. The study involves 14 teachers at the beginning of their careers (1-7 years of experience) examining teacher thinking against the evolving stages of teacher professionalism, namely pre-professionalism, autonomous professionalism, collegial professionalism and post-professionalism. The study reveals that Kosovo teachers reflect strong dominance of pre- professionalism and autonomous professionalism while they demonstrate a weaker reflection of collegial and post- professional aspects of teachers’ work. It provides insights for viewing teacher professionalism wi…
Numerical and Experimentical Study of Motion Control Using Pressure Feedback
2013
This paper is concerned with the inherent oscillatory nature of pressure compensated motion control of a hydraulic cylinder subjected to a negative load and suspended by means of an overcenter valve. A pressure feedback scheme that indirectly eliminates the oscillations is investigated. The indirect control scheme utilizes pressure feedback to electronically compensate the metering-out allowing for the removal of the compensator and, subsequently, elimination of the oscillations. The suggested electronic compensation scheme is implemented and examined in a single degree-of-freedom test rig actuated by means of a double acting hydraulic cylinder. The control scheme is compared with other con…
Measurement of the Atmospheric ve flux in IceCube
2012
We report the first measurement of the atmospheric electron neutrino flux in the energy range between approximately 80 GeV and 6 TeV, using data recorded during the first year of operation of IceCube's DeepCore low energy extension. Techniques to identify neutrinos interacting within the DeepCore volume and veto muons originating outside the detector are demonstrated. A sample of 1029 events is observed in 281 days of data, of which 496 $\pm$ 66(stat.) $\pm$ 88(syst.) are estimated to be cascade events, including both electron neutrino and neutral current events. The rest of the sample includes residual backgrounds due to atmospheric muons and charged current interactions of atmospheric muo…
Energy-related optimal control accounts for gravitational load: comparing shoulder, elbow, and wrist rotations.
2013
International audience; Gaveau J, Berret B, Demougeot L, Fadiga L, Pozzo T, Papaxanthis C. Energy-related optimal control accounts for gravitational load: comparing shoulder, elbow, and wrist rotations. J Neurophysiol 111: 4-16, 2014. First published October 16, 2013; doi: 10.1152/jn.01029.2012.-We permanently deal with gravity force. Experimental evidences revealed that moving against gravity strongly differs from moving along the gravity vector. This directional asymmetry has been attributed to an optimal planning process that optimizes gravity force effects to minimize energy. Yet, only few studies have considered the case of vertical movements in the context of optimal control. What kin…
Dark Matter Search Results from a One Ton-Year Exposure of XENON1T
2018
We report on a search for Weakly Interacting Massive Particles (WIMPs) using 278.8 days of data collected with the XENON1T experiment at LNGS. XENON1T utilizes a liquid xenon time projection chamber with a fiducial mass of $(1.30 \pm 0.01)$ t, resulting in a 1.0 t$\times$yr exposure. The energy region of interest, [1.4, 10.6] $\mathrm{keV_{ee}}$ ([4.9, 40.9] $\mathrm{keV_{nr}}$), exhibits an ultra-low electron recoil background rate of $(82\substack{+5 \\ -3}\textrm{ (sys)}\pm3\textrm{ (stat)})$ events/$(\mathrm{t}\times\mathrm{yr}\times\mathrm{keV_{ee}})$. No significant excess over background is found and a profile likelihood analysis parameterized in spatial and energy dimensions exclude…
Background subtraction and peak search from threefold gamma event data
1990
Abstract A method for subtracting background from triple-coincidence γ events is presented. In our data set it was used to remove 40% of the noise without affecting photopeaks with intensity of >18 counts. An example of performance of Ward's clustering algorithm applied to three-dimensional photopeak searching is also presented. Several standard clustering algorithms were found to be applicable only to background-subtracted data.
Retrieving Open Source Software Licenses
2006
Open Source Software maintenance and reuse require identifying and comprehending the applied software licenses. This paper first characterizes software maintenance, and open source software (OSS) reuse which are particularly relevant in this context. The information needs of maintainers and reusers can be supported by reverse engineering tools at different information retrieval levels. The paper presents an automated license retrieval approach called ASLA. User needs, system architecture, tool features, and tool evaluation are presented. The implemented tool features support identifying source file dependencies and licenses in source files, and adding new license templates for identifying l…
Algoritmi krustvārdu mīklu veidošanai
2020
Darba mērķis ir izpētīt, kādi algoritmi spēj izveidot krustvārdu mīklas, un salīdzināt iegūtos rezultātus pēc dažādiem kritērijiem. Krustvārdu mīklu izveidei tiek padoti vārdi ar definīcijām un tiek veidots jauns režģis no padotajiem vārdiem. Tiks salīdzināti dažādi algoritmi pēc kritērijiem, kā piemēram, cik kompakta ir izveidotā krustvārdu mīkla, cik daudz krustpunktu ir izveidoti starp vārdiem, kāda ir malu proporcija u.tml. Darbā iegūtie algoritmi, kas tiks programmēti programmēšanas valodā Python, varētu veidot krustvārdu mīklas, lai cilvēkiem tas nebūtu jādara pašiem manuāli, kā arī tas ietaupītu cilvēku laiku.
The new course of FITs mechanism for PV systems in Italy: novelties, strong points and criticalities
2011
The paper deals with the new course of the Feed-in Tariffs mechanism for photovoltaic systems that will start from January 1, 2011 in Italy with the actuation of the Government Decree DM 06/08/2010. After a short introduction on Feed-in Tariffs and Net-metering in Italy, the paper focuses the attention on an economical comparison between the incentives established by the Government Decree DM 19/02/07, ended on December 31, 2010 and those introduced by the DM 06/08/2010. The economical comparison is based on three indexes: the Pay Back Period, the Net Present Value and the Internal Rate of Return, characterizing the investments done for the realization of the photovoltaic systems. In particu…