cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Der fotografische Akt
Creators: name: Koltermann, Felix
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2020

description: Um Missverständnisse gleich vorwegzunehmen: Bei diesem Text geht es keineswegs um die Beschäftigung mit der fotografischen Form des Akts als einem zentralen Motiv der Kunstgeschichte. Stattdessen wird der fotografische Akt hier als der Akt des Fotografierens verstanden. Es geht also um die Situation, in der Fotograf*in, Fotografierte und Kamera aufeinandertreffen und aus der in der Regel ein Bild entsteht. Damit einher geht die Einschränkung, dass die hier dargelegten Argumente vor allem auf Situationen zutreffen, in denen Menschen fotografiert werden. Während mit „Bildethik“ oft pauschal diverse Aspekte von Fotografie gemeint werden, die sowohl die Ästhetik und die Bildlichkeit als auch die Produktion umfassen, fällt bei einer Zerlegung des fotografischen Prozesses in seine Einzelteile auf, dass sich verschiedene bildethische Fragen stellen.
Femtoscopy correlations of kaons in $Pb + Pb$ collisions at LHC within hydrokinetic model
Creators: name: Shapoval, V. M.
name: Braun-Munzinger, P.
name: Karpenko, Iu. A.
name: Sinyukov, Yu. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We provide, within the hydrokinetic model, a detailed investigation of kaon interferometry in $Pb+Pb$ collisions at LHC energy ($\sqrt{s_{NN}} = 2.76$ TeV). Predictions are presented for 1D interferometry radii of $K^0_SK^0_S$ and $K^{\pm}K^{\pm}$ pairs as well as for 3D femtoscopy scales in out, side and long directions. The results are compared with existing pion interferometry radii. We also make predictions for full LHC energy.
description: 12 pages, 6 figures
Visualization Dashboards v1
Creators: name: Popescu, Radu
name: Oniga, Dana
Publisher: name: Zenodo
Year: 2020
Subjects: Interactive Dashboards

description: Deliverable D5.2 Visualization Dashboards v1 presents the first results of task T5.2 Advanced Visualization Dashboards implementation, as part of WP5 - Analysis and Decision Making. All activities performed for the design and the development of the first version of the Interactive Dashboard SPHINX component (ID) are documented in the following four chapters, detailing the technical background and other important aspects
Satellite structures in the spectral functions of semiconductor quantum well two-dimensional electron gases: a GW plus cumulant study
Creators: name: Lischner, Johannes
name: Vigil-Fowler, Derek
name: Louie, Steven G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present theoretical calculations for the spectral functions and single-particle densities of states of the two-dimensional electron gas in semiconductor quantum wells at different electron densities using the GW+cumulant method. We compare our results to GW only calculations and find significant differences in the description of the satellites between the two theories: while GW theory predicts the existence of a plasmaron excitation, no such excitation is found in GW+cumulant theory. We compare our results to experimental tunneling spectra from semiconductor quantum wells and find good agreement for the satellite properties.
description: 5 pages, 5 figures, submitted to Phys. Rev. B
On the Tree Search Problem with Non-uniform Costs
Creators: name: Cicalese, Ferdinando
name: Keszegh, Balázs
name: Lidický, Bernard
name: Pálvölgyi, Dömötör
name: Valla, Tomáš
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Searching in partially ordered structures has been considered in the context of information retrieval and efficient tree-like indexes, as well as in hierarchy based knowledge representation. In this paper we focus on tree-like partial orders and consider the problem of identifying an initially unknown vertex in a tree by asking edge queries: an edge query $e$ returns the component of $T-e$ containing the vertex sought for, while incurring some known cost $c(e)$. The Tree Search Problem with Non-Uniform Cost is: given a tree $T$ where each edge has an associated cost, construct a strategy that minimizes the total cost of the identification in the worst case. Finding the strategy guaranteeing the minimum possible cost is an NP-complete problem already for input tree of degree 3 or diameter 6. The best known approximation guarantee is the $O(\log n/\log \log \log n)$-approximation algorithm of [Cicalese et al. TCS 2012]. We improve upon the above results both from the algorithmic and the computational complexity point of view: We provide a novel algorithm that provides an $O(\frac{\log n}{\log \log n})$-approximation of the cost of the optimal strategy. In addition, we show that finding an optimal strategy is NP-complete even when the input tree is a spider, i.e., at most one vertex has degree larger than 2.
Grušin operators, Riesz transforms and nilpotent Lie groups
Creators: name: Robinson, Derek W
name: Sikora, Adam
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J70, 35H20, 43A65, 22E45

description: We establish that the Riesz transforms of all orders corresponding to the Grušin operator $H_N=-\nabla_{x}^2-|x|^{2N}\,\nabla_{y}^2$, and the first-order operators $(\nabla_{x},x^ν\,\nabla_{y})$ where $x\in \Ri^n$, $y\in\Ri^m$, $N\in\Ni_+$, and $ν\in\{1,\ldots,n\}^N$, are bounded on $L_p(\Ri^{n+m})$ for all $p\in\langle1,\infty\rangle$ and are also weak-type $(1,1)$. Moreover, the transforms of order less than or equal to $N+1$ corresponding to $H_N$ and the operators $(\nabla_{x}, |x|^N\nabla_{y})$ are bounded on $L_p(\Ri^{n+m})$ for all $p\in\langle1,\infty\rangle$. But all transforms of order $N+2$ are bounded if and only if $p\in\langle1,n\rangle$. The proofs are based on the observation that the $(\nabla_{x},x^ν\,\nabla_{y})$ generate a finite-dimensional nilpotent Lie algebra, the corresponding connected, simply connected, nilpotent Lie group is isometrically represented on the spaces $L_p(\Ri^{n+m})$ and $H_N$ is the corresponding sublaplacian
description: 11 pages
Disentangling radiative corrections using high-mass Drell-Yan at the LHC
Creators: name: Boughezal, Radja
name: Li, Ye
name: Petriello, Frank
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a detailed numerical study of lepton-pair production via the Drell-Yan process above the Z-peak at the LHC. Our results consistently combine next-to-next-to-leading order QCD corrections and next-to-leading order electroweak effects, and include the leading photon-initiated processes using a recent extraction of the photon distribution function. We focus on the effects of electroweak corrections and of photon-photon scattering contributions, and demonstrate which kinematic distributions exhibit sensitivity to these corrections. We show that a combination of measurements allows them to be disentangled and separately determined.
description: 26 pages, 45 figures
Accurate momentum transfer cross section for the attractive Yukawa potential
Creators: name: Khrapak, S. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Accurate expression for the momentum transfer cross section for the attractive Yukawa potential is proposed. This simple analytic expression agrees with the numerical results better than to within $\pm 2\%$ in the regime relevant for ion-particle collisions in complex (dusty) plasmas.
description: to be published in Physics of Plasmas
On non-Archimedean recurrence equations and their applications
Creators: name: Mukhamedov, Farrukh
name: Akin, Hasan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46S10, 12J12, 39A70, 47H10, 60K35

description: In the present paper we study stability of recurrence equations (which in particular case contain a dynamics of rational functions) generated by contractive functions defined on an arbitrary non-Archimedean algebra. Moreover, multirecurrence equations are considered. We also investigate reverse recurrence equations which have application in the study of $p$-adic Gibbs measures. Note that our results also provide the existence of unique solutions of nonlinear functional equations as well.
description: 14 pages
PERFORMANCE OF CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT BY CERAMICS WASTE POWDER AT ELEVATED TEMPERATURES
Creators: name: SHEWATATEK WORKINEH
Publisher: name: Zenodo
Year: 2020

description: This research work presents experimental investigation on effect of temperatures (at room and elevated temperature) on physical and mechanical properties of concrete with partial replacement of cement by ceramics waste powder. First compressive strength test was performed on 12 concrete cube specimens with 0%, 10%, 20%, and 30% replacement of cement with CWP at room temperature to identify the optimum CWP percentage replacement. Then 81 concrete cubes (100mm X 100mm) were prepared at different replacement levels of cement with CWP (0%, 10%, & 30%) at constant water/cement ratio of 0.52. The cubes were cured for 28 days in water; kept for 1 hour in muffle furnace at various temperature ranges (100 ºC, 200 ºC, 300 ºC, 400 ºC, 500 ºC, 600 ºC, 700 ºC and 800 ºC); air cooled for 12 hrs before testing
Code and analysis from Environmental DNA metabarcoding reveals winners and losers of global change in coastal waters
Creators: name: Gallego, Ramón
name: Jacobs-Palmer, Emily
name: Cribari, Kelly
name: Kelly, Ryan P.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: 60408 Genomics

description: Go to https://github.com/ramongallego/eDNA.and.Ocean.Acidification.Gallego.et.al.2020 to find the code necessary to replicate the analysis.
Automation of The Guiding Center Expansion
Creators: name: Burby, J. W.
name: Squire, J.
name: Qin, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We report on the use of the recently-developed Mathematica package \emph{VEST} (Vector Einstein Summation Tools) to automatically derive the guiding center transformation. Our Mathematica code employs a recursive procedure to derive the transformation order-by-order. This procedure has several novel features. (1) It is designed to allow the user to easily explore the guiding center transformation's numerous non-unique forms or representations. (2) The procedure proceeds entirely in cartesian position and velocity coordinates, thereby producing manifestly gyrogauge invariant results; the commonly-used perpendicular unit vector fields $e_1,e_2$ are never even introduced. (3) It is easy to apply in the derivation of higher-order contributions to the guiding center transformation without fear of human error. Our code therefore stands as a useful tool for exploring subtle issues related to the physics of toroidal momentum conservation in tokamaks.
description: 34 pages
title: Electrochemical and biological treatment of return liquors from dewatering thermal hydrolysis digestate
Creators: name: Blach, Tobias
name: Hennemann, Lea
name: Engelhart, Markus
Publisher: name: UNSPECIFIED
Year: 2022

description: Organic, mostly refractory compounds and ammonium in return liquors from dewatering thermal hydrolysis (TH) digestate were degraded to a large extent using a boron-doped diamond electrode. Electrochemical pre-treatment slightly improved biodegradability of organics but inhibited nitrification. The electro oxidation of biologically pre-treated return liquor at a lower current density was significantly more effective regarding COD degradation and energy demand.
Nonadiabatic Dynamics of a Dissipative Two-level System
Creators: name: Xu, Canran
name: Poudel, Amrit
name: Vavilov, Maxim G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the dynamics of a two-level system described by a slowly varying Hamiltonian and weakly coupled to the Ohmic environment. We follow the Bloch--Redfield perturbative approach to include the effect of the environment on qubit evolution and take into account modification of the spectrum and matrix elements of qubit transitions due to time-dependence of the Hamiltonian. This formalism is applied to two problems. (1) We consider a qubit, or a spin-1/2, in a rotating magnetic field. We show that once the rotation starts, the spin has a component perpendicular to the rotation plane of the field that initially wiggles and eventually settles to the value proportional to the product of angular rotation velocity of the field and the Berry curvature. (2) We re-examine the Landau--Zener transition for a system coupled to environment at arbitrary temperature. We show that as temperature increases, the thermal excitation and relaxation become leading processes responsible for transition between states of the system. We also apply the Lindblad master equations to these two problems and compare results with those obtained from the Bloch--Redfield equations.
description: 18 pages, 15 figures submitted to PRA
Voluntary Exile and Eisangelia in Athens
Creators: name: Loddo, Laura
Publisher: name: Dike - Rivista di Storia del Diritto Greco ed Ellenistico
Year: 2020

description: This paper aims to investigate the question of the (un)lawfulness of voluntary exile by defendants in relation to eisangelia trials. I argue that the defendant’s habit of evading trial by going into exile was never seen as lawful, despite the frequency with which it occurred. First, I examine the issue of alternating between the death penalty and exile in eisangelia trials with the aim of showing that exile was not a penalty linked to the procedure of impeachment. Then, I argue that Athenian law took into consideration the issue of the (un)lawfulness of self-exile, as demonstrated by the existence of an Athenian law concerning the same matter in homicide cases. Lastly, I analyse some ancient passages that allow us to state that defendants in high treason trials who evaded justice were likened to outlaws. Elements such as the practice of setting bounties on those who escaped trial, extradition requests for fugitives, the imposition of additional penalties such as confiscation of property and inscribing the fugitive’s name on a bronze stele, can corroborate this assumption.
description: Dike - Rivista di Storia del Diritto Greco ed Ellenistico, V. 22 (2019)
The Hamiltonian Mechanics of Stochastic Acceleration
Creators: name: Burby, J. W.
name: Zhmoginov, A. I.
name: Qin, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We show how to find the physical Langevin equation describing the trajectories of particles undergoing collisionless stochastic acceleration. These stochastic differential equations retain not only one-, but two-particle statistics, and inherit the Hamiltonian nature of the underlying microscopic equations. This opens the door to using stochastic variational integrators to perform simulations of stochastic interactions such as Fermi acceleration. We illustrate the theory by applying it to two example problems.
description: 12 pages
Disk evolution, element abundances and cloud properties of young gas giant planets
Creators: name: Helling, Ch.
name: Woitke, P.
name: Rimmer, P. B.
name: Kamp, I.
name: Thi, W. -F.
name: Meijerink, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We discuss the chemical pre-conditions for planet formation, in terms of gas and ice abundances in a protoplanetary disk, as function of time and position, and the resulting chemical composition and cloud properties in the atmosphere when young gas giant planets form. Large deviations between the abundances of the host star and its gas giants seem likely to occur if the planet formation follows the core-accretion scenario. These deviations stem from the separate evolution of gas and dust in the disk, where the dust forms the planet cores, followed by the final run-away accretion of the left-over gas. ProDiMo protoplanetary disk models are used to predict the chemical evolution of gas and ice in the midplane. We find that cosmic rays play a crucial role in slowly un-blocking the CO, where the liberated oxygen forms water, which then freezes out quickly. Therefore, the C/O ratio in the gas phase is found to gradually increase with time, in a region bracketed by the water and CO ice-lines. In this regions, C/O is found to approach unity after about 5 Myrs, scaling with the cosmic ray ionisation rate. We then explore how the atmospheric chemistry and cloud properties in young gas giants are affected when the non-solar C/O ratios predicted by the disk models are assumed. The DRIFT cloud formation model is applied to study the formation of atmospheric clouds under the influence of varying primordial element abundances and its feedback onto the local gas. We demonstrate that element depletion by cloud formation plays a crucial role in converting an oxygen-rich atmosphere gas into carbon-rich gas when non-solar, primordial element abundances are considered as suggested by disk model.
description: 32 pages, accepted for publication in the OA journal 'Life', Special issue 'Planet Formation and the Rise of Life'. Life (ISSN 2075-1729)
title: Warum personale Basiskompetenzen für den Lehrerberuf so wichtig sind
Creators: name: Döring-Seipel, Elke
name: Seip, Maria
name: Bosse, Dorit
name: Dauber, Heinrich
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: personale Kompetenzen
subject: Professionalisierung
subject: Lehramtsstudium
subject: Lehrerberuf
subject: 370
subject: Lehrer
subject: Pädagogische Fähigkeit
subject: Sozialkompetenz
subject: Selbstkompetenz

description: Diese Publikation ist im Rahmen des Praxisprojekt BASIS entstanden. Das Praxisprojekt BASIS gehörte dem Zentrum für Lehrerbildung der Universität Kassel an, welches im Rahmen der Einführungsveranstaltung im wissenschaftlichen Kernstudium durchgeführt werden musste. Das Projekt entstand im Rahmen einer interdisziplinär und interinstitutionell zusammengesetzten Arbeitsgruppe des Zentrum für Lehrer*innenbildung (ZLB).
Brain-wide mapping of fMRI network dynamics in the mouse brain
Creators: name: Gutierrez Barragan, Daniel
Publisher: name: Universit� degli studi di Trento
Year: 2018

description: Intrinsic brain activity has been widely characterized using the blood-oxygen-level-dependent(BOLD) functional Magnetic Resonance Imaging(fMRI)at rest. There is increasing interest in finding reproducible and robust signatures of large-scale brain synchronization, and pinpointing their neurophysiological substrates and inherent alteration in disease.In this respect, the implementation of dynamic fMRI mapping in laboratory animalsrepresents a major advance, offeringthe opportunity to unravel the elusive drivers of this phenomenon via the use of cell-type specific manipulations that are off limits in humans.Multiple investigations have shown that spontaneous brain activity is non-stationary andinvolves reconfigurationsinto multiple dynamicstates.This research describesa series of studies aimedto map spontaneous fMRI (rsfMRI) network dynamics in the resting mouse brain with voxel resolution. Starting from a proof-of-concept demonstration that canonical resting state fMRI correlations are reliably described by brief instances of regional peak fMRI activity, wedevised a novel frame-wise clustering strategy that allowed us to map recurrent fMRI networks states dynamicsin the mouse brain. We showthat brain-wide patterns of fMRI co-activation can be reliably mapped at the group and subject level, defining a restricted set of recurring brain states characterized by rich network structure. Of particular interest was the observation of opposite co-activation of the mouse default mode network (DMN) and Latero-cortical networks(LCN), two systems that have been proposed to parallel analogous systems of the human brain.Importantly, we also document that these functional states are characterized by contrasting patterns of spontaneous fMRI activity,and exhibit coupled oscillatory dynamics embedded in a common temporal reference marked by infra-slow global fMRI signal oscillations. We next applied this novel framework to a genetic modelof autismand show that aberrant patterns of fMRI connectivity in a genetic model of autism reflect the engagement non-canonical brain states, characterized by altered regional topography and oscillatory dynamics. We finally show that pharmacological stimulation of the cholinergic systems results in reduced large-scale brain synchronization, a finding associated with anew set of oscillating statesin which the involvement of basal forebrain areas is pre-dominant. Collectively,our result demonstrate the possibility of mapping spatio-temporal dynamics of spontaneous brain activity in the living mouse brain with voxel resolution. Our approach reveals a new set of fundamental principles guiding the spatiotemporal organization of resting state fMRI activity, and its disruption in brain disorders.
The role of task relevance in the modulation of brain dynamics during sensory predictions
Creators: name: Greco, Antonino
Publisher: name: Universit� degli studi di Trento
Year: 2021

description: Associative learning is a fundamental ability biological systems possess in order to adapt to a nonstationary environment. One of the core aspects of associative learning theoretical frameworks is that surprising events drive learning by signalling the need to update the system?s beliefs about the probability structure governing stimuli associations. Specifically, the central neural system generates internal predictions to anticipate the causes of its perceptual experience and compute a prediction error to update its generative model of the environment, an idea generally known as the predictive coding framework. However, it is not clear whether the brain generates these predictions only for goal-oriented behavior or they are more a general characteristic of the brain function. In this thesis, I explored the role of task relevance in modulating brain activity when exposed to sensory associative learning task. In the first study, participants were asked to perform a perceptual detection task while audio-visual stimuli were presented as distractors. These distractors possessed a probability structure that made some of them more paired than others. Results showed that occipital activity triggered by the conditioned stimulus was elicited just before the arrival of the unconditioned visual stimulus. Moreover, occipital activity after the onset of the unconditioned stimulus followed a pattern of precision-weighted prediction errors. In the second study, two more sessions were added to the task in the previous study in which the probability structure for all stimuli associations was identical and the whole experiment was spanned in six days across two weeks. Results showed a difference in the modulation of the beta band induced by the presentation of the unconditioned stimulus preceded by the predictive and unpredictive conditioned auditory stimuli by comparing the pre and post sessions activity. In the third study, participants were exposed to a similar task with respect to the second study with the modification that there was a condition in which the conditioned-unconditioned stimulus association was task-relevant, thus allowing to directly compare task-relevant and task-irrelevant associations. Results showed that both types of associations had similar patterns in terms of activity and functional connectivity when comparing the brain responses to the onset of the unconditioned visual stimulus. Taken together, these findings demonstrate irrelevant associations rely on the same neural mechanisms of relevant ones. Thus, even if task relevance plays a modulatory role on the strength of the neural effects of associative learning, predictive processes take place in sensory associative learning regardless of task relevance.
Formation of light exotic nuclei in low-energy multinucleon transfer reactions
Creators: name: Zagrebaev, V. I.
name: Fornal, B.
name: Leoni, S.
name: Greiner, Walter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Low-energy multinucleon transfer reactions are shown to be very effective tool for the production and spectroscopic study of light exotic nuclei. The corresponding cross sections are found to be significantly larger as compared with high energy fragmentation reactions. Several optimal reactions for the production of extremely neutron rich isotopes of elements with Z=6-14 are proposed.
description: 8 figures
Some variational and geometric problems on metric measure spaces
Creators: name: Vedovato, Mattia
Publisher: name: Universit� degli studi di Trento
Year: 2022

description: In this Thesis, we analyze three variational and geometric problems, that extend classical Euclidean issues of the calculus of variations to more general classes of spaces. The results we outline are based on the articles [Ved21; MV21] and on a forthcoming joint work with Nicolussi Golo and Serra Cassano. In the first place, in Chapter 1 we provide a general introduction to metric measure spaces and some of their properties. In Chapter 2 we extend the classical Talenti?s comparison theorem for elliptic equations to the setting of RCD(K,N) spaces: in addition the the generalization of Talenti?s inequality, we will prove that the result is rigid, in the sense that equality forces the space to have a symmetric structure, and stable. Chapter 3 is devoted to the study of the Bernstein problem for intrinsic graphs in the first Heisenberg group H^1: we will show that under mild assumptions on the regularity any stationary and stable solution to the minimal surface equation needs to be intrinsically affine. Finally, in Chapter 4 we study the dimension and structure of the singular set for p-harmonic maps taking values in a Riemannian manifold.
Exploring gender differences on general and specific computer self-efficacy in mobile learning adoption
Creators: name: Bao, Yukun
name: Xiong, Tao
name: Hu, Zhongyi
name: Kibelloh, Mboni
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Reasons for contradictory findings regarding the gender moderate effect on computer self-efficacy in the adoption of e-learning/mobile learning are limited. Recognizing the multilevel nature of the computer self-efficacy (CSE), this study attempts to explore gender differences in the adoption of mobile learning, by extending the Technology Acceptance Model (TAM) with general and specific CSE. Data collected from 137 university students were tested against the research model using the structural equation modeling approach. The results suggest that there are significant gender differences in perceptions of general CSE, perceived ease of use and behavioral intention to use but no significant differences in specific CSE, perceived usefulness. Additionally, the findings reveal that specific CSE is more salient than general CSE in influencing perceived ease of use while general CSE seems to be the salient factor on perceived usefulness for both female and male combined. Moreover, general CSE was salient to determine the behavioral intention to use indirectly for female despite lower perception of general CSE than male's, and specific CSE exhibited stronger indirect effect on behavioral intention to use than general CSE for female despite similar perception of specific CSE as males'. These findings provide important implications for mobile learning adoption and usage.
description: 30 pages
On dynamics of imploding shock waves in a mixture of gas and dust particles
Creators: name: Anand, R. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, the generalized analytical solutions for one-dimensional adiabatic flow behind the imploding shock waves propagating in a dusty gas are obtained using the geometrical shock dynamics theory. The dusty gas is assumed to be a mixture of a perfect gas and spherically small solid particles, in which solid particles are continuously distributed. Shock jump relations given by Anand for a dusty gas are taken into consideration to explore the effects due to an increase in (i) the propagation distance from the centre of convergence, (ii) the mass fraction of solid particles in the mixture and (iii) the ratio of the density of solid particles to the initial density of the gas, on the shock velocity, pressure, temperature, density, velocity of mixture, speed of sound, adiabatic compressibility of mixture and the change-in-entropy across the shock front. The results provided a clear picture of whether and how the presence of solid particles influences the flow field behind the imploding shock front.
description: Accepted for publication in International Journal of Non-Linear Mechanics
Gyrosymmetry: Global Considerations
Creators: name: Burby, J. W.
name: Qin, H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In the guiding center theory, smooth unit vectors perpendicular to the magnetic field are required to define the gyrophase. The question of global existence of these vectors is addressed using a general result from the theory of characteristic classes. It is found that there is, in certain cases, an obstruction to global existence. In these cases, the gyrophase cannot be defined globally. The implications of this fact on the basic structure of the guiding center theory are discussed. In particular it is demonstrated that the guiding center asymptotic expansion of the equations of motion can still be performed in a globally consistent manner when a single global convention for measuring gyrophase is unavailable. The latter fact is demonstrated directly by deriving a new expression for the guiding-center Poincaré-Cartan form exhibiting no dependence on the choice of perpendicular unit vectors.
description: 22 pages
Equilibrium Electro-osmotic Instability
Creators: name: Rubinstein, Isaak
name: Zaltzman, Boris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Since its prediction fifteen years ago, electro-osmotic instability has been attributed to non-equilibrium electro-osmosis related to the extended space charge which develops at the limiting current in the course of concentration polarization at a charge-selective interface. This attribution had a double basis. Firstly, it has been recognized that equilibrium electro-osmosis cannot yield instability for a perfectly charge-selective solid. Secondly, it has been shown that non-equilibrium electro-osmosis can. First theoretical studies in which electro-osmotic instability was predicted and analyzed employed the assumption of perfect charge-selectivity for the sake of simplicity and so did the subsequent numerical studies of various time-dependent and nonlinear features of electro-osmotic instability. In this letter, we show that relaxing the assumption of perfect charge-selectivity (tantamount to fixing the electrochemical potential in the solid) allows for equilibrium electro-osmotic instability. Moreover, we suggest a simple experimental test for determining the true, either equilibrium or non-equilibrium, origin of electro-osmotic instability.
description: 5 pages, 4 figures, submitted
Towards reconnecting Computer Science Education with the World out there
Creators: name: Angeli, Lorenzo
Publisher: name: Universit� degli studi di Trento
Year: 2021

description: Computing is becoming exponentially more pervasive, and so-called process of ``Digital Transformation'' is but starting. As computers become ever more relevant, our societies will need computing professionals that are well-equipped to face the many challenges their own discipline amplified. The education of computer scientists, so far, mostly focused on equipping them with technical skills. Society and academia, however, are increasingly recognising computing as a field where disciplines collide and intersect. An example that we investigate is that of Innovation and Entrepreneurship (I&E), a field that has often be used to equip computer science students with soft skills and non-technical competences. Computer science faces some unique problems, among which a lower student interest for non-technical subjects, and a constant process of epistemic and technological obsolescence. This thesis showcases some experiences that aim to address these challenges, going towards (re)connecting the Humans and Machines participating in computer science education with the needs of the World of today and tomorrow. Our work combines some theoretical reflections with pedagogical experiments, to ensure that our work has at the same time descriptive power and empirical validation. To aid teachers and learners in the change process, these experiments share a pedagogical approach rooted on Active Learning, ranging from Challenge-Based Learning to Peer Education, to custom-tailored teaching methodologies. In designing each experiment, we start by asking ourselves: how is what we want to teach practiced in the real world? Theoretically, this thesis contributes to the state of the art by conducting a horizontal exploration of how computer science education can enter an age ever more dominated by so-called ambiguity. Methodologically, we propose lightweight techniques for qualitative measurement that are rigorous, but introduce little methodological burden, emphasising our work's reflective and exploratory dimension. Our work aims to show how, using the same broad design process, courses can be flexibly adapted to fit an ever-changing world, including significant disruptions such as the transition to online education.
ASSOCIATIVE-IMAGINAL INTERPRETATION OF LITERARY THOUGHT IN A MATERIAL ENVIRONMENT BY THE EXAMPLE OF “DIVINE COMEDY” CREATION
Creators: name: Melikyan, Artashes
name: Elyanora Markaryan
name: Paytyan, Tatevik
name: Atsharyan, Ani
Publisher: name: Endless light in science
Year: 2022
Subjects: Environment design
society
materialization
literature
interpretation.

description: The key conditions of the relationship between the parallel provisions of environment design and the "Divine Comedy" and the environmental design in the context of aesthetic planning and literature materialization, are aimed to raise the importance of design activities at the qualitative development of public relations. Historical and psychological aspects of structure of humanitarian norms, as well as conceptual design as a platform for raising important issues are presented as a subject of comprehensive research. An attempt was made to define the design boundaries of the environmental design and to consider the features of their transformation; in the context of expanding borders and their disappearance
Synthesis and biological evaluation of new 3-substituted coumarin derivatives as selective inhibitors of human carbonic anhydrase IX and XII
Creators: name: Ghouse, Shaik Mahammad
name: Bahatam, Kavyaraj
name: Angeli, Andrea
name: Pawar, Gaurav
name: Chinchilli, Krishna Kartheek
name: Yaddanapudi, Venkata Madhavi
name: Mohammed, Arifuddin
name: Supuran, Claudiu T.
name: Nanduri, Srinivas
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: The Carbonic anhydrase isoforms IX and XII play a significant role in regulating the intracellular and extracellular pH in hypoxic tumours abetting the metastasis of solid tumours. Selective and potent inhibitors targeting carbonic anhydrase IX and XII reduce the activity of these isoforms in hypoxic tumours, representing an antitumor and antimetastatic mechanism. Coumarin-based derivatives are selective inhibitors of CA isoforms IX and XII. In this study, we report the design and synthesis of new 3-substituted coumarin derivatives with different functional moieties and their inhibitory activity against various carbonic anhydrase isoforms. We found that the tertiary sulphonamide derivative 6c showed selective inhibition against CA IX with IC50 of 4.1 µM. Similarly, the carbothioamides 7c, 7b and oxime ether derivative 20a exhibited good inhibition against CA IX and CA XII. Additionally, the binding mode was predicted and validated using molecular docking and dynamic simulations.
Nucleon form factors for the elastic electron-deuteron scattering at high momentum transfer
Creators: name: Bekzhanov, A. V.
name: Bondarenko, S. G.
name: Burov, V. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The reaction of the elastic electron-deuteron scattering at high momentum transfer is investigated within the Bethe-Salpeter approach. The relativistic covariant Graz II separable kernel of nucleon-nucleon interactions is used to analyze the deuteron structure functions, form factors and tensor of polarization components. The modern data for the electromagmetic nucleons structure from the double polarization experiments as well as some other models of the nucleon form factors are considered.
Microbial enzymes for hair removal: an integrated biotechnological approach for application in the leather tanning industry
Creators: name: Dematt�, Elisa
Publisher: name: Universit� degli studi di Trento
Year: 2021

description: ABSTRACT Microbial enzymes have been used for decades in a number of processes in the industrial, biomedical, environmental, and agro-food sectors. The dehairing phase of the leather tanning process is currently mediated by sulphur/sulphides chemicals, requiring expensive and complex procedures for water depollution and increasing safety risks for workers. This project is aimed at the development of a microbially-driven process for hair removal based on secreted enzymes. The first phase of the project consisted in the isolation of microorganisms naturally present on raw hides (cow skin) and displaying dehairing ability. A collection of 52 pure bacterial isolates was first screened for proteolytic activity (25 positive isolates) and then for their ability to grow on minimal media (10 positive isolates). The genome of these 10 isolates was sequenced and the supernatants containing secreted enzymes (and potential other metabolites) were tested for enzymatic activity and dehairing capacity at a laboratory scale. The secretome analysis reported the presence of more than 200 secreted proteins for each isolate and showed an increase in the release of hydrolytic enzymes during growth on minimal media. Further selection among the 10 isolates was based on proteomic analysis, pilot scale dehairing tests and yields after the downstream process The 4 isolates, selected on the base of the unhairing ability, secretome analysis and downstream yields, were subjected to further characterization to choose the most promising for the desired activity. Isolate 1Dm15, selected for the dehairing ability demonstrated at pilot scale, was grown in bioreactor and once the parameters were defined a scale-up of the process was performed. In conclusion, in this work we identified a Bacillus sp. strain able to grow on minimal media and secrete a pool of enzymes active in the dehairing of hides. This microbially driven process shows promising application in the industrial practice substituting the use of reducing agents.
Algorithms Visualization Tool for Students and Lectures in Computer Science
Creators: name: Musumbu, Kaninda
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The best way to understand complex data structures or algorithm is to see them in action. The present work presents a new tool, especially useful for students and lecturers in computer science. It is written in Java and developed at Bordeaux University of Sciences and Technology. Its purposes is to help students in understanding classical algorithms by illustrating them in different ways: graphical (animated), formal, and descriptive. We think that it can be useful to everyone interested in algorithms, in particular to students in computer science that want to beef up their readings and university lecturers in their major effort to enhance the data structures and algorithms course. The main new thing of this tool is the fact of making it possible to the user to animate their own algorithms.
ФАЪОЛИЯТИ ИНВЕСТИТСИОНӢ ВА ИНКИШОФИ ЗАМИНАИ МОДДӢ�ТЕХНИКИИ МУАССИСАҲОИ СОҲАИ ТАҲСИЛОТИ ОЛӢ
Creators: name: Шукурова Муаззама Васиджановна
Publisher: name: Endless light in science
Year: 2022
Subjects: инвеститсия
инноватсия
тањсилоти олии касбї
маориф
система

description: дар маќола муаллиф оид ба масъалањои сармоягузорињо ба соњаи тањсилоти олии касбї нишон додааст. Табдилёбӣ хусусияти ҳама гуна системаи табиат мебошад, ҷавоби ӯ дар ивазшавии шароитҳои вуҷудият, унсури мутобиқшавии система ба ин тағйиротҳо мебошад. Дар илми иқтисодиёти муосир дар зери мафҳуми инвеститсия, гузориши сармояи давлатӣ ва хусусӣ барои рушди соҳаҳои гуногун дар кишвари мазкур ё берун аз ҳудуди он фаҳмида мешавад. Дар макроиқтисодиёт инвеститсия ҳамчун раванди таъсис додани саррмояи нав (аз он ҷумла воситаҳои истеҳсолот дар сармояи инсонӣ) муайян карда мешавад. Дар назарияи молия дар зери мафҳуми инвеститсия харидани активҳои молиявӣ, яъне “мубодилаи арзиши имрӯза ба арзиши номуайяни оянда” фаҳмида мешавад.
ИСТИФОДАИ ТЕХНОЛОГИЯЊОИ НАВИНИ МУОСИРИ ПЕДАГОГЇ ДАР ДАРСЊОИ ТЕХНОЛОГИЯ
Creators: name: Сангов Нуриддин Набиевич
name: Саидзода Қурбони Аҳтам
Publisher: name: Endless light in science
Year: 2022
Subjects: технологияњои навини педагогӣ
асосњои дидактикї
хонанда
сарчашмањои ахборотї
воситањои электронї
истифодаи ТИК
дарси мактабї
технологияи компютерї ва информатсионӣ.

description: Дар мақола оид ба технологияњои навини педагогӣ, ки барои тарбия намудани чунин арзишњо ба монанди: поквиљдонӣ, ростќавлӣ, хайрхоњӣ, њисси њамдардӣ ва расонидани ёрии њамдигар байни таълимгирандагон, равона карда шудааст. Чунин муносибат талаботи таълимии њар як хонандаро вобаста ба хусусиятњои фардии ў таъмин менамояд. Асосњои дидактикї ба мазмун, услуб ва ташкили дарс ва дастурдињї таъсир мерасонад. Онњо на њамеша метавонанд њаммаъно ва фарќкунанда аз њамдигар бошанд. Хонанда вақте бењтар тањсил мекунад, ки ба коре машѓул бошад. Бинобар он, шароити таълимии муассисањои тањсилоти миёна ва касбї бояд тавре ташкил гардад, ки миќдори зиёди намудњои фаъолият амалї карда шаванд. Дар айни њол зарурияти ташкил намудани раванди таълим дар асоси технологияњои иттилоотӣ-коммуникатсионӣ, ки ба сифати сарчашмањои ахборотї бештар воситањои электронї, пеш аз њама шабакаи глобалии телекоммуникатсионии Интернет истифода бурда мешавад. Ќисми асосии таркибии иттилоотии раванди таълимиро истифодаи ТИК дар дарси мактабї ташкил медињад. Бинобар ин истифодаи истифодаи технологияи компютерї ва информатсионӣ дар дарсњо дар асоси тхнологияи пдагогӣ муҳим мебошад.
Mass-Galaxy offsets in Abell 3827, 2218 and 1689: intrinsic properties or line-of-sight substructures?
Creators: name: Mohammed, Irshad
name: Liesenborgs, Jori
name: Saha, Prasenjit
name: Williams, Liliya L. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have made mass maps of three strong-lensing clusters, Abell 3827, Abell 2218 and Abell 1689, in order to test for mass-light offsets. The technique used is GRALE, which enables lens reconstruction with minimal assumptions, and specifically with no information about the cluster light being given. In the first two of these clusters, we find local mass peaks in the central regions that are displaced from the nearby galaxies by a few to several kpc. These offsets {\em could\/} be due to line of sight structure unrelated to the clusters, but that is very unlikely, given the typical levels of chance line-of-sight coincidences in $ΛCDM$ simulations --- for Abell 3827 and Abell 2218 the offsets appear to be intrinsic. In the case of Abell 1689, we see no significant offsets in the central region, but we do detect a possible line of sight structure: it appears only when sources at $z\ga 3$ are used for reconstructing the mass. We discuss possible origins of the mass-galaxy offsets in Abell 3827 and Abell 2218: these include pure gravitational effects like dynamical friction, but also non-standard mechanisms like self-interacting dark-matter.
description: 14 pages, 9 figures; Accepted for publication in MNRAS
On the perturbation theory in spatially closed background
Creators: name: Asgari, Ali A.
name: Abbassi, Amir H.
name: Khodagholizadeh, Jafar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article,we investigate some features of the perturbation theory in spatially closed universe. We will show that the perturbative field equations in a spatially closed universe always have two independent adiabatic solutions provided that the wavelengths of perturbation modes are very longer than the Hubble horizon. It will be revealed that these adiabatic solutions do not depend on the curvature directly. We also propound a new interpretation for the curvature perturbation in terms of the unperturbed geometry.
description: 25 pages,no figures,accepted for publiction in EPJC
Data and code to "Decreasing resilience of China’s coupled nitrogen-phosphorus cycling network requires urgent action"
Creators: name: Yu, Yadong
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370299
subject: Climate change science not elsewhere classified
classificationCode: 379901
subject: Earth system sciences

description: This file contains the data for China's N-P coupled cycling network and the code for calculating the N-P coupled network resilience. The data and code are for "Decreasing resilience of China’s coupled nitrogen-phosphorus cycling network requires urgent action" by Luo, Z., Yu, Y., Kharrazi, A., et al. published in Nature Food.
Data for China's N-P coupled cycling network and code for the network resilience
Creators: name: Yu, Yadong
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370299
subject: Climate change science not elsewhere classified
classificationCode: 379901
subject: Earth system sciences

description: This file contains the data for China's N-P coupled cycling network and code for calculating the N-P coupled network resilience. The data and code are part of the research entitled "Decreasing resilience of China’s coupled nitrogen-phosphorus cycling network requires urgent action".