cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SILKNOW Image Classification - final version WP4 - Multi-Task Classification
Creators: name: Dorozynski, Mareike
name: Rottensteiner, Franz
Publisher: name: Zenodo
Year: 2021
Subjects: CNN
image classification
silk fabrics
SILKNOW

description: A pre-trained model resulting from the SILKNOW Image Classification software from the Git repository https://github.com/silknow/image-classification. The model was trained on images exported from an relatively advanced state of the SILKNOW Knowledge graph (19.02.2021) in the frame of D4.6 in the SILKNOW project. The model is able to predict class labels for five semantic variables, namely "production timespan", "production place", "technique", "material" and "depiction", for an input image.
title: 西南三江成矿带南段1：250 000乡城县幅区域地质调查报告
title: 区域地质调查报告2018-10001
titleType: Other
Creators: name: 何;徐;胡;刘;李;吕;肖;周, 文劲;刚;林;子畅;海;行;龙;晓珂
Publisher: name: 全国地质资料馆
Year: 2018
Subjects: subject: 造山带混杂岩;中酸性侵入体;金沙江结合带

description: 应用现代地层学多重划分理论与方法，主要按照《四川省岩石地层》对测区内的岩石地层单位进行了全面清理，共厘定了32个正式岩石地层单位，构造岩层单位1个岩群。依据造山带混杂岩区非史密斯地层系统划分方法，对金沙江蛇绿混杂岩带中分布的原1∶200 000所划的响姑组、戛金雪山群、额阿钦组、中心绒群，按岩性组合划分为以下岩片：火山岩岩片、复理石岩片、火山（岛） 弧岩片和裂解块体岩片以及碳酸盐岩岩块、超基性岩岩块、基性岩墙等。在得荣县斯木达和德钦县木通一带新发现较完整的蛇绿岩套岩石组合，并测制了蛇绿岩套剖面。对中酸性侵入岩岩体分别进行了系统剖面控制和路线调查并合理解体，基本查明了各岩体的空间分布及其岩石类型、接触关系、岩体组构及围岩蚀变等特征，同时加强了岩体内部构造的研究，获得了一批较为可靠的锆石年龄数据，为综合研究提供了最新的基础资料。分布于加仁岩体东部原1∶200 000认为的边缘混合岩经过观察并不属实，通过多方面工作，目前认为它是古老的裂解块体岩片混杂于金沙江蛇绿岩群中，经区域对比其可能为雄松岩群。详细调查并总结了各大断裂带特征，基本查明了金沙江结合带的分布位置。
Molecular interaction of inhibitors with human brain butyrylcholinesterase
Creators: name: Shakil, Shazi
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2021
Subjects: Alzheimer’s disease
butyrylcholinesterase
MD simulation
protein ligand docking
screening cascade

description: Alzheimer’s disease is a topic of deep research interest across the global scientific community. Butyrylcholinesterase (BuChE) is an important enzyme, and an interesting anti-Alzheimer’s target. Identification or fresh design of promising BuChE-inhibitors is warranted. Virtual screening supported by molecular dynamics simulations has emerged as a key component of present drug-discovery cascades. The research piece aimed at identification of a putative BuChE-inhibitor as a fresh molecular frame that might aid drug design in the context of Alzheimer’s disease. The study utilized ‘MCULE’ to screen a set of 5 million ligands to test their ability to bind to human BuChE. Pharmacokinetic profiling was achieved by the ‘SWISS ADME’ program. Toxicities were duly assessed. YASARA STRUCTURE version 20.10.4.W.64 was employed to run 133 ns molecular dynamics (MD) simulation for the complex of ‘the top screened out inhibitor’ and ‘the human BuChE enzyme’. The simulation was executed for approx. 4 days (~93 hrs) on an HP ZR30w workstation. YANACONDA, a special language contained in YASARA STRUCTURE was employed to perform complex tasks. Fine resolution figures (notably the RMSD vs time plot) were created. Snapshots were extracted at every 250 ps. The selected ligand, (3-Bromophenyl)[5-(4-chlorophenyl)-5-hydroxy-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-1-yl]methanone, exhibited the best overall binding with human BuChE. It interacted with human BuChE through 19 residues. Markedly, 9 of the 19 residues were confirmed to be matching to those of the reference complex (PDB ID 5DYW). Trajectory analysis returned 533 snapshots. The RMSD versus time plot indicated that around 22 ns, equilibrium was achieved and, from then on, the ‘BuChE-Top inhibitor’ complex remained predominantly stable. From 22 ns and onwards till 133 ns, the backbone RMSD fluctuations were observed to remain limited within a range of 1.2–1.9 Å. The molecule, (3-Bromophenyl)[5-(4-chlorophenyl)-5-hydroxy-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-1-yl]methanone, satisfied ADMET requirements. Additionally, the feasibility of the proposed enzyme-inhibitor complex was supported by an adequately extended MD simulation of 133 ns. Hence, the proposed molecule could be a likely lead for designing inhibitor(s) against human BuChE. Scope remains for validatory wet laboratory investigation.
description: EXCLI Journal; 20:Doc1597; ISSN 1611-2156
Investigating the physical properties and fragmentation of the AFGL 333-Ridge
Creators: name: Liang, Xiaolian
name: Xu, Jin-Long
name: Wang, Jun-Jie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present multi-wavelength data to investigate the physical properties and fragmentation of AFGL 333- Ridge. A statistical analysis of velocity dispersion indicates that turbulence is the dominant motion in the ridge. However, the linear mass density (1124.0 M/pc) of AFGL 333-Ridge far exceeds its critical value of 406.5 M/pc, suggesting that additional motions are required to prevent the filament radial collapse. Using the getsources algorithm, we identified 14 cores from the Herschel maps, including two protostellar cores and 12 starless cores. All of these starless cores are gravitationally bound, and are therefore considered to be prestellar cores. Based on their radius-mass relation, 11 of 14 cores have the potential to form massive stars. Moreover, the seven cores in two sub-filaments of AFGL 333-Ridge seem to constitute two necklace-like chains with a spacing length of 0.51 pc and 0.45 pc, respectively. Compared the spacing length with theoretical prediction lengths by Jeans and cylindrical fragmentations, we argued that the combination of turbulence and thermal pressure may lead to the fragmentation of the two sub-filaments into the cores.
description: 7 pages, 4 figures, 2 tables, accepted by AJ
SILKNOW Image Classification - final version WP6 - Multi-Task Classification
Creators: name: Dorozynski, Mareike
name: Rottensteiner, Franz
Publisher: name: Zenodo
Year: 2021
Subjects: SILKNOW
CNN
image classification
ADASilk
silk fabrics

description: A pre-trained model resulting from the SILKNOW Image Classification software from the Git repository https://github.com/silknow/image-classification. The model was trained on images exported from an advanced state of the SILKNOW Knowledge graph (21/05/2021) in the frame of D6.7 in the SILKNOW project. The model is able to predict class labels for five semantic variables, namely "production timespan", "production place", "technique", "material" and "depiction", for an input image.
A MODEL OF RELATIONSHIP BETWEEN GRATITUDE AND PROSOCIAL MOTIVATION OF THAI HIGH SCHOOL AND UNDERGRADUATE STUDENTS
Creators: name: Janjira Wangwan
Publisher: name: Behavioral Science Research Institute,SWU.
Year: 2014
Subjects: gratitude,prosocial motivation,indebtedness,adolescents

description: 1, 9, INTERNATIONAL JOURNAL OF BEHAVIORAL SCIENCE
Basic-deformed thermostatistics
Creators: name: Lavagno, A.
name: Scarfone, A. M.
name: Swamy, P. Narayana
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Starting from the basic-exponential, a q-deformed version of the exponential function established in the framework of the basic-hypergeometric series, we present a possible formulation of a generalized statistical mechanics. In a q-nonuniform lattice we introduce the basic-entropy related to the basic-exponential by means of a q-variational principle. Remarkably, this distribution exhibits a natural cut-off in the energy spectrum. This fact, already encountered in other formulations of generalized statistical mechanics, is expected to be relevant to the applications of the theory to those systems governed by long-range interactions. By employing the q-calculus, it is shown that the standard thermodynamic functional relationships are preserved, mimicking, in this way, the mathematical structure of the ordinary thermostatistics which is recovered in the q=1 limit.
description: 23 pages, 2 fugures, Accepted on J. Phys. A: Math. Gen
มหาวิทยาลัยเทคโนโลยีราชมงคลพระนครกับบทบาทการวิจัย : กรณีศึกษาการพัฒนาผลิตภัณฑ์จากกล้วย
Creators: name: ดวงสุดา  เตโชติรส
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2007
Subjects: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, การพัฒนาผลิตภัณฑ์จากกล้วย

description: 1, 1, วารสารวิชาการและวิจัย มทร.พระนคร
การศึกษาความหลากหลายทางพันธุกรรมของพืชในวงศ์จาปาด้วยเทคนิคแฮตอาร์เอพีดี (Study on Genetic Diversity of  Magnoliaceae  by Using High Annealing TemperatureRandom Amplified Polymorphic DNA Technique)
Creators: name: วริสรา แทนสง่า
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: genetic diversity, HAT-RAPD, Magnoliaceae

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
Dynamic Access Control in Industry 4.0 Systems
Creators: name: Heinrich, Robert
name: Seifermann, Stephan
name: Walter, Maximilian
name: Hahner, Sebastian
name: Reussner, Ralf
name: Bureš, Tomáš
name: Hnětynka, Petr
name: Pacovský, Jan
Publisher: name: Springer Vieweg
Year: 2023

description: Industry 4.0 enacts ad-hoc cooperation between machines, humans, and organizations in supply and production chains. The cooperation goes beyond rigid hierarchical process structures and increases the levels of efficiency, customization, and individualisation of end-products.
Efficient processing and cooperation requires exploiting various sensor and process data and sharing them across various entities including computer systems, machines, mobile devices, humans, and organisations.

Access control is a common security mechanism to control data sharing between involved parties.
However, access control to virtual resources is not sufficient in presence of Industry 4.0 because physical access has a considerable effect on the protection of information and systems.
In addition, access control mechanisms have to become capable of handling dynamically changing situations arising from ad-hoc horizontal cooperation or changes in the environment of Industry 4.0 systems.

Established access control mechanisms do not consider dynamic changes and the combination with physical access control yet.
Approaches trying to address these shortcomings exist but often do not consider how to get information such as the sensitivity of exchanged information.

This chapter proposes a novel approach to control physical and virtual access tied to the dynamics of custom product engineering, hence, establishing confidentiality in ad-hoc horizontal processes.
The approach combines static design-time analyses to discover data properties with a dynamic runtime access control approach that evaluates policies protecting virtual and physical assets.
The runtime part uses data properties derived from the static design-time analysis, as well as the environment or system status to decide about access.
X-ray obscuration from a variable ionized absorber in PG 1114+445
Creators: name: Serafinelli, R.
name: Braito, V.
name: Severgnini, P.
name: Tombesi, F.
name: Giani, G.
name: Piconcelli, E.
name: Della Ceca, R.
name: Vagnetti, F.
name: Gaspari, M.
name: Saturni, F. G.
name: Middei, R.
name: Tortosa, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Photoionized absorbers of outflowing gas are commonly found in the X-ray spectra of active galactic nuclei (AGN). While most of these absorbers are seldom significantly variable, some ionized obscurers have been increasingly found to substantially change their column density on a wide range of time scales. These $N_\text{H}$ variations are often considered as the signature of the clumpy nature of the absorbers. Here we present the analysis of a new Neil Gehrels Swift Observatory campaign of the type-1 quasar PG 1114+445, which was observed to investigate the time evolution of the multiphase outflowing absorbers previously detected in its spectra. The analyzed dataset consists of 22 observations, with a total exposure of $\sim90$ ks, spanning about $20$ months. During the whole campaign, we report an unusually low flux state with respect to all previous X-ray observations of this quasar. From the analysis of the stacked spectra we find a fully covering absorber with a column density $\log(N_\text{H}/\text{cm}^{-2})=22.9^{+0.3}_{-0.1}$. This is an order of magnitude higher than the column density measured in the previous observations. This is either due to a variation of the known absorbers, or by a new one, eclipsing the X-ray emitting source. We also find a ionization parameter of $\log(ξ/\text{erg cm s}^{-1})=1.4^{+0.6}_{-0.2}$. Assuming that the obscuration lasts for the whole duration of the campaign, i.e. more than $20$ months, we estimate the minimum distance of the ionized clump, which is located at $r\gtrsim0.5$ pc.
description: 7 pages, 7 figures, 3 tables. Accepted for publication in Astronomy & Astrophysics
El aula invertida para la docencia de Física
Creators: name: Ruiz-Galende, Patricia
name: Montoya, Mónica
name: Pablo-Lerchundi, Iciar
name: Almendros, Patricia
name: Revuelta, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: En este trabajo presentamos una experiencia docente on-line con estudiantes universitarios de primer curso basada en la aplicación del aula invertida para el estudio de cinemática de sólido rígido. Los resultados del estudio no demuestran diferencias significativas con respecto a otros temas tratados ni con respecto al mismo tema en el curso anterior, en el que la docencia no fue virtual sino presencial. In this work, we present an on-line educational experience with first-year university students based on the application of the flipped classroom to study kinematics of rigid solid. Our results show no statistical differences when compared with other parts of the Physics module nor with the results obtained last year, when the educational process was not virtual but in person.
description: Article content: 6 pages, in Spanish, 4 figures, 3 tables. Proceedings of the Congreso Internacional sobre Aprendizaje, innovaci\'on y Cooperaci\'on (CINAIC 2021), October 20-22 2021, Madrid (Spain)
Images of charity, conflict, and kingship : the iconography of a pair of Crusader ivories
Creators: name: Anderson, Patricia
Publisher: name: University of British Columbia
Year: 2010

description: A pair of mid-twelfth-century ivory plaques, carved in Jerusalem, and now in the British Library, are important both as the only known twelfth-century Crusader ivories, and as the one-time covers of Queen Melisende's Psalter (London, B.L. Egerton MS 1139; 1131-1143) — the most complete and lavishly illuminated manuscript to have survived from the first Latin Kingdom of Jerusalem (1099-1187). Iconographically, the ivories are unique. On the front cover are two main sequences: scenes from the life of David, and images of the major Virtues and Vices -- cycles which are not usually portrayed in juxtaposition. On the back cover, a third major cycle, in which a king performs the six Acts of Mercy, is also noteworthy -- both for its unique association with the other two cycles, and for the number of its individual scenes, which makes it unrivalled among earlier or contemporary mercy cycles, in the completeness of its adherence to its textual source. This thesis is concerned with the textual and pictorial origins of these distinctive groups of images. Chapter II identifies the major and subordinate textual sources of the ivories' iconography, thus demonstrating the primarily narrative function of the images. The covers are also pictorially expressive of three themes — charity, conflict, and kingship — which, together, are conceptually related to the ideal and actuality of Davidic kingship in twelfth-century Jerusalem. Chapter III considers the specific artistic sources of the imagery, citing iconographically-comparable examples from Jerusalem and elsewhere. The ivories are found to have pictorial affinities with some contemporary manuscripts from Byzantium and Western Europe, and in this, they typify the dual artistic tradition that was the hallmark of the Jerusalem scriptorium in the mid-twelfth century. The ivories also depict several decorative motifs, characteristic of the local artistic tradition. The presence of such motifs not only confirms the previously-established Jerusalem, provenance of the ivories, but also becomes a means of differentiating between the two artists who carved them. Chapter IV briefly considers problems, mentioned in, or related to the concerns of, the two preceding chapters. Questions of style, dating, and patronage are somewhat elaborated, and suggestions are made for follow-up research. In explaining the narrative and thematic significance of their iconography, and in detailing their relationship to Byzantine, Western, and local artistic traditions, this study demonstrates that the ivory covers of the Melisende Psalter are both conceptually and pictorially characteristic of their time and place of origin.
Computational Imaging Without a Computer: Seeing Through Random Diffusers at the Speed of Light
Creators: name: Luo, Yi
name: Zhao, Yifan
name: Li, Jingxi
name: Cetintas, Ege
name: Rivenson, Yair
name: Jarrahi, Mona
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Imaging through diffusers presents a challenging problem with various digital image reconstruction solutions demonstrated to date using computers. We present a computer-free, all-optical image reconstruction method to see through random diffusers at the speed of light. Using deep learning, a set of diffractive surfaces are designed/trained to all-optically reconstruct images of objects that are covered by random phase diffusers. We experimentally demonstrated this concept using coherent THz illumination and all-optically reconstructed objects distorted by unknown, random diffusers, never used during training. Unlike digital methods, all-optical diffractive reconstructions do not require power except for the illumination light. This diffractive solution to see through diffusers can be extended to other wavelengths, and might fuel various applications in biomedical imaging, astronomy, atmospheric sciences, oceanography, security, robotics, among others.
description: 35 Pages, 7 Figures
Vortices on a superconducting nanoshell: phase diagram and dynamics
Creators: name: Gladilin, V. N.
name: Tempere, J.
name: Silvera, I. F.
name: Devreese, J. T.
name: Moshchalkov, V. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In superconductors, the search for special vortex states such as giant vortices focuses on laterally confined or nanopatterned thin superconducting films, disks, rings, or polygons. We examine the possibility to realize giant vortex states and states with non-uniform vorticity on a superconducting spherical nanoshell, due to the interplay of the topology and the applied magnetic field. We derive the phase diagram and identify where, as a function of the applied magnetic field, the shell thickness and the shell radius, these different vortex phases occur. Moreover, the curved geometry allows these states (or a vortex lattice) to coexist with a Meissner state, on the same curved film. We have examined the dynamics of the decay of giant vortices or states with non-uniform vorticity into a vortex lattice, when the magnetic field is adapted so that a phase boundary is crossed.
description: 21 pages, 9 figures
Sechs Wanderlieder von Wilhelm Müller : mit Begleitung des Pianoforte : 2tes Werk [Op. 2], 1tes Heft
Creators: name: Fröhlich, Friedrich Theodor
Publisher: name: Wagenführ
Year: 1828

description: Gesangmusik. Lieder für eine Singstimme mit Begleitung
description: von Theodor Fröhlich
description: Digitalisierung=Digitization=Numérisation August 2024 TIFF
description: Digitalisierung=Digitization=Numérisation Oktober 2024 TIFF Signatur 148:1
Gas of sub-recoiled laser cooled atoms described by infinite ergodic theory
Creators: name: Barkai, Eli
name: Radons, Günter
name: Akimoto, Takuma
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The velocity distribution of a classical gas of atoms in thermal equilibrium is the normal Maxwell distribution. It is well known that for sub-recoiled laser cooled atoms Lévy statistics and deviations from usual ergodic behaviour come into play. Here we show how tools from infinite ergodic theory describe the cool gas. Specifically, we derive the scaling function and the infinite invariant density of a stochastic model for the momentum of laser cooled atoms using two approaches. The first is a direct analysis of the master equation and the second following the analysis of Bertin and Bardou using the lifetime dynamics. The two methods are shown to be identical, but yield different insights into the problem. In the main part of the paper we focus on the case where the laser trapping is strong, namely the rate of escape from the velocity trap is $R(v) \propto |v|^α$ for $v \to 0$ and $α>1$. We construct a machinery to investigate the time averages of physical observables and their relation to ensemble averages. The time averages are given in terms of functionals of the individual stochastic paths, and here we use a generalisation of Lévy walks to investigate the ergodic properties of the system. Exploring the energy of the system, we show that when $α=3$ it exhibits a transition between phases where it is either an integrable or non integrable observable, with respect to the infinite invariant measure. This transition corresponds to very different properties of the mean energy, and to a discontinuous behaviour of the fluctuations. Since previous experimental work showed that both $α=2$ and $α=4$ are attainable we believe that both phases could be explored also experimentally.
description: 32 pages, 11 figures
Resource utilization in oligopolistic markets : the case of exhaustible resources
Creators: name: Eswaran, Mukesh
Publisher: name: University of British Columbia
Year: 2010

description: This thesis considers the utilization of an exhaustible resource in an oligopolistic market in which producers are assumed to behave noncooperatively. Within a game-theoretic framework, the amount of resource recovered by the industry is endogenized by allowing producers to undertake, prior to extraction, investment activities which alter the variable cost of resource recovery. The open-loop Cournot-Nash equilibrium is characterized in considerable detail, especially in the symmetric case in which property rights are identical across producers. In this case, it is shown that an increase in the number of producers in the industry (a) increases the ultimate amount: of resource recovered by the industry (b) increases the initial investment undertaken on each deposit (c) lowers the resource price, at least initially (d) raises the shadow price of the resource, initially (e) decreases the present value of industry profits, and (f) increases the present value of the total surplus generated in the Cournot-Nash equilibrium. When the property rights are asymmetric, it is shown that the output profile of the industry is inefficient from society's point of view: the same stream of resource output can be provided, in general, at lower investment cost and present value variable cost.
The kinetic temperature of a molecular cloud at redshift 0.9: Ammonia in the gravitational lens PKS1830-211
Creators: name: Henkel, C.
name: Braatz, J. A.
name: Menten, K. M.
name: Ott, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the Green Bank Telescope (GBT), we have detected the (J,K) = (1,1) to (10,10) ammonia inversion lines, up to 1030 K above the ground state, in a face-on spiral galaxy viewed against the radio continuum of the lensed background source PKS 1830-211. The ammonia absorption lines, seen at redshift 0.886, appear to be optically thin with absolute peak flux densities up to 2.5 percent of the total continuum of the background source. Measured intensities are consistent with a kinetic temperature of 80 K for 80-90 percent of the ammonia column. The remaining gas is warmer, reaching at least 600 K. Column density and fractional abundance are of order (5-10) x 10^14 cm^-2 and (1.5-3.0) x 10^-8. Similarities with a hot ammonia absorption component observed toward the Sgr B2 region close to the Galactic center may suggest that the Sgr B2 component also originates from warm diffuse low-density molecular gas. The warm ammonia column observed toward PKS 1830-211 is unique in the sense that it originates in a spiral arm.
description: 7 pages, 2 figure, 1 table
title: Die Professionalisierung der Gleichstellungsarbeit im Reformprozess – Ausbau von Gleichstellungswissen und Genderkompetenz in Hochschulen
Creators: name: Roski, Melanie
name: Schacherl, Ingrid
Publisher: name: Humboldt-Universität zu Berlin
Year: 2014
Subjects: subject: Gender Mainstreaming
subject: Genderkompetenz
subject: gleichstellungsorientierte Steuerung
subject: Gleichstellungspolitik
subject: Hochschule
subject: Hochschulmanagement
subject: Professionalisierung
subject: ddc:370

description: Der Beitrag beschäftigt sich mit Prozessen des Gender Mainstreamings an Hochschulen und referiert empirische Ergebnisse aus einer qualitativen Studie an 13 deutschen Hochschulen. Untersucht wurde die Professionalisierung der Gleichstellungsarbeit im Zuge der Hochschulreform. Die Ergebnisse zeigen: Für gleichstellungsorientierte Innovationen bedarf es externer Impulse sowie der Übernahme von Verantwortung für die Umsetzung durch die Hochschulleitung. Die Hochschulen verfolgen verschiedene Konzepte, um Gleichstellungsaufgaben institutionell in die Hochschulsteuerung zu integrieren. An einigen Hochschulen wurden Gleichstellungsbüros zu internen Genderkompetenzzentren ausgebaut oder vergleichbare Stabsstellen ein gerichtet. Durch neue Akteurskonstellationen, Instrumente und Verfahren wurden die strukturellen Voraussetzungen zum Ausbau der Genderwissensbasis geschaffen. Das hat gleichzeitig die organisationale und die berufliche Professionalisierung von Gleichstellungsarbeit befördert.
Quantum backreaction on a classical universe
Creators: name: Husain, Viqar
name: Singh, Suprit
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a first-order formulation for the coupled evolution of a quantum scalar field and a classical Friedmann universe. The model is defined by a state dependent hamiltonian constraint and the time dependent Schrödinger equation for the scalar field. We solve the resulting non-linear equations numerically for initial data consisting of a Gaussian scalar field state and gravity phase space variables. This gives a self-consistent semiclassical evolution that includes non-perturbative ``backreaction" due to particle production. We compare the results with the evolution of a quantum scalar field on a fixed background, and find that the backreaction modifies both particle production and cosmological expansion, and that these effects remain bounded.
description: 7 pages, 2 figures
Nature of the bound states of molecular hydrogen in carbon nanohorns
Creators: name: Fernandez-Alonso, Felix
name: Bermejo, F. Javier
name: Cabrillo, Carlos
name: Loutfy, Raouf O.
name: Leon, Vincent
name: Saboungi, Marie-Louise
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effects of confining molecular hydrogen within carbon nanohorns are studied via high-resolution quasielastic and inelastic neutron spectroscopies. Both sets of data are remarkably different from those obtained in bulk samples in the liquid and crystalline states. At temperatures where bulk hydrogen is liquid, the spectra of the confined sample show an elastic component indicating a significant proportion of immobile molecules as well as distinctly narrower quasielastic line widths and a strong distortion of the line shape of the para - ortho rotational transition. The results show that hydrogen interacts far more strongly with such carbonous structures than it does to carbon nanotubes, suggesting that nanohorns and related nanostructures may offer significantly better prospects as lightweight media for hydrogen storage applications.
description: 4 pages
Influence of non-adiabatic effects on linear absorption spectra in the condensed phase: Methylene blue
Creators: name: Dunnett, Angus J.
name: Gowland, Duncan
name: Isborn, Christine M.
name: Chin, Alex W.
name: Zuehlsdorff, Tim J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Modeling linear absorption spectra of solvated chromophores is highly challenging as contributions are present both from coupling of the electronic states to nuclear vibrations and solute-solvent interactions. In systems where excited states intersect in the Condon region, significant non-adiabatic contributions to absorption lineshapes can also be observed. Here, we introduce a robust approach to model linear absorption spectra accounting for both environmental and non-adiabatic effects from first principles. This model parameterizes a linear vibronic coupling (LVC) Hamiltonian directly from energy gap fluctuations calculated along molecular dynamics (MD) trajectories of the chromophore in solution, accounting for both anharmonicity in the potential and direct solute-solvent interactions. The resulting system dynamics described by the LVC Hamiltonian are solved exactly using the thermalized time-evolving density operator with orthogonal polynomials algorithm (T-TEDOPA). The approach is applied to the linear absorption spectrum of methylene blue (MB) in water. We show that the strong shoulder in the experimental spectrum is caused by vibrationally driven population transfer between the bright S1 and the dark S2 state. The treatment of the solvent environment is one of many factors which strongly influences the population transfer and lineshape; accurate modeling can only be achieved through the use of explicit quantum mechanical solvation. The efficiency of T-TEDOPA, combined with LVC Hamiltonian parameterizations from MD, leads to an attractive method for describing a large variety of systems in complex environments from first principles.
description: 16 pages, 7 figures
Orbital periods of cataclysmic variables identified by the SDSS. II. Measurements for six objects, including two eclipsing systems
Creators: name: Southworth, John
name: Marsh, T. R.
name: Gaensicke, B. T.
name: Aungwerojwit, A.
name: Hakala, P.
name: de Martino, D.
name: Lehto, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Continuing our work from Paper I (Southworth et al., 2006) we present medium-resolution spectroscopy and broad-band photometry of seven cataclysmic variables (CVs) discovered by the SDSS. For six of these objects we derive accurate orbital periods, all which are measured for the first time. For SDSS J013132.39+090122.2, which contains a non-radially pulsating white dwarf, we find an orbital period of 81.54 +/- 0.13 min and a low radial velocity variation amplitude indicative of an extreme mass ratio. For SDSS J205914.87+061220.4, we find a period of 107.52 +/- 0.14 min. This object is a dwarf nova and was fading from its first recorded outburst throughout our observations. INT photometry of SDSS J155531.99-001055.0 shows that this system undergoes total eclipses which are 1.5 mag deep and occur on a period of 113.54 +/- 0.03 min. A NOT light curve of SDSS J075443.01+500729.2 shows that this system is also eclipsing, on a period of 205.965 +/- 0.014 min, but here the eclipses are V-shaped and only 0.5 mag deep. Its low emission-line strengths, orbital period and V-shaped eclipse unambiguously mark it as a novalike object. WHT photometry of SDSS J005050.88+000912.6 and SDSS J210449.94+010545.8 yields periods of 80.3 +/- 2.2 and 103.62 +/- 0.12 min, respectively. Photometry of the seventh and final system, SDSS J165658.12+212139.3, shows only flickering. Our results strengthen the conclusion that the faint magnitude limit of the SDSS spectroscopic database implies that the sample of CVs contained in it has quite different characteristics to previously studied samples of these objects. Five of the six orbital periods measured here are shorter than the observed 2-3 hr CV period gap. Two systems have periods very close to the minimum orbital period for hydrogen-rich CVs.
description: Accepted for publication in MNRAS; 15 pages and 11 figures. The data will be available from http://www.astro.keele.ac.uk/~jkt/
Monitoring Supergiant Fast X-ray Transients with Swift. I. Behavior outside outbursts
Creators: name: Sidoli, L.
name: Romano, P.
name: Mangano, V.
name: Pellizzoni, A.
name: Kennea, J. A.
name: Cusumano, G.
name: Vercellone, S.
name: Paizis, A.
name: Burrows, D. N.
name: Gehrels, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Supergiant Fast X-ray Transients (SFXTs) are a new class of HMXBs discovered thanks to the monitoring of the Galactic plane performed with the INTEGRAL satellite in the last 5 years. These sources display short outbursts (significantly shorter than typical Be/X-ray binaries) with a peak luminosity of a few 1E36 erg/s. The quiescent level, measured only in a few sources, is around 1E32 erg/s. We are performing a monitoring campaign with Swift of four SFXTs (IGRJ16479-4514, XTEJ1739-302, IGRJ17544-2619 and AXJ1841.0-0536/IGRJ18410-0535). We report on the first four months of Swift observations, started on 2007 October 26. We detect a low level X-ray activity in all four SFXTs which demonstrates that these transient sources accrete matter even outside their outbursts. This fainter X-ray activity is composed of many flares with a large flux variability, on timescales of thousands of seconds. The lightcurve variability is also evident on larger timescales of days, weeks and months, with a dynamic range of more than one order of magnitude in all four SFXTs. The X-ray spectra are typically hard, with an average 2-10 keV luminosity during this monitoring of about 1E33-1E34 erg/s. We detected pulsations from the pulsar AXJ1841.0-0536, with a period of 4.7008+/-0.0004 s. This monitoring demonstrates that these transients spend most of the time accreting matter, although at a much lower level (~100-1000 times lower than during the bright outbusts), and that the true quiescence, characterized by a soft spectrum and a luminosity of a few 1E32 erg/s, observed in the past only in a couple of members of this class, is probably a very rare state.
description: Accepted for publication in ApJ
Small Signal Analysis of SQUID Direct Readout Schemes
Creators: name: Wang, Yongliang
name: Zhang, Guofeng
name: Zhang, Shulin
name: Rong, Liangliang
name: Wang, Yong
name: Xie, Xiaoming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: To better understand the working principles of Superconducting Quantum Interference Device (SQUID) direct readout schemes, which work in different bias and amplifier modes with different internal feedback schemes, we present the complete circuit analyses on SQUID small-signal model. SQUID bias and amplifier circuits are analyzed using SQUID Thevenin equivalent circuit, and the general equivalent circuit of SQUID with different internal feedback schemes is derived and analyzed with a trans-impedance amplifier model. Transfer characteristics and noise performances of different direct readout schemes are analyzed and experimentally characterized. It is shown that amplifier noise suppression is only dependent on SQUID flux-to-voltage transfer coefficient and is irrelevant to the configuration of bias and amplifier; SQUID with an internal feedback scheme improves the transfer coefficient with voltage feedback and regulates the dynamic resistance with current feedback.
description: 16 pages, 11 figures
Hypothesis testing for Gaussian states on bosonic lattices
Creators: name: Mosonyi, Milan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The asymptotic state discrimination problem with simple hypotheses is considered for a cubic lattice of bosons. A complete solution is provided for the problems of the Chernoff and the Hoeffding bounds and Stein's lemma in the case when both hypotheses are gauge-invariant Gaussian states with translation-invariant quasi-free parts.
description: 22 pages, submitted version
Supplementary document for Off-Specular Mueller Matrix Ellipsometry for the Design and Manufacture of Polarization Beam Splitting Metasurfaces - 6647467.pdf
Creators: name: Bjelland, Victoria
name: Hale, Nathan
name: Schwarz, Niklas
name: Vala, Daniel
name: Høvik, Jens
name: Kildemo, Morten
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplement 1
Comment on "Relativistic Aharonov-Bohm effect in the presence of planar Coulomb potentials"
Creators: name: Hagen, C. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the principal results of a recent work by Khalilov are incorrect. These errors are attributable to the author's insistence that wave functions must be regular at the origin even when the relevant potential is singular at that point.
description: 2 pages, no figures
Supplementary document for Physics-driven universal twin-image removal network for digital in-line holographic microscopy - 6613614.pdf
Creators: name: Rogalski, Mikolaj
name: Arcab, Piotr
name: Stanaszek, Luiza
name: Mico, Vicente
name: Zuo, Chao
name: Trusiak, Maciej
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Photonics, Optoelectronics and Optical Communications

description: Analysis of UTIRnet performance depending on the microscope system parameters and description of supplementary visualizations.
Finite strain viscoplasticity with nonlinear kinematic hardening: phenomenological modeling and time integration
Creators: name: Shutov, A. V.
name: Kreissig, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 74C20; 74S05

description: This article deals with a viscoplastic material model of overstress type. The model is based on a multiplicative decomposition of the deformation gradient into elastic and inelastic part. An additional multiplicative decomposition of inelastic part is used to describe a nonlinear kinematic hardening of Armstrong-Frederick type. Two implicit time-stepping methods are adopted for numerical integration of evolution equations, such that the plastic incompressibility constraint is exactly satisfied. The first method is based on the tensor exponential. The second method is a modified Euler-Backward method. Special numerical tests show that both approaches yield similar results even for finite inelastic increments. The basic features of the material response, predicted by the material model, are illustrated with a series of numerical simulations.
description: 29 pages, 7 figures
title: Жоғары математика (кеңістіктегі аналитикалық геометрия, анықтауыштар мен матрицалар, сызықтық теңдеулер)
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Ай Пи Ар Медиа
Year: 2024

description: Практикумда кеңістіктегі аналитикалық геометрия, матрицалар, анықтауыштар және теңдеулер жүйесі тақырыбы бойынша теориялық материалдар беріліп, есептердің шешу үлгілері берілген. «Жоғары математика» пәнін оқитын барлық студенттерге ұсынылады.
title: Математика. Кеңістіктегі аналитикалық геометрия, анықтауыштар мен матрицалар, сызықтық теңдеулер
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Профобразование
Year: 2024

description: Практикумда кеңістіктегі аналитикалық геометрия, матрицалар, анықтауыштар және теңдеулер жүйесі тақырыбы бойынша теориялық материалдар беріліп, есептердің шешу үлгілері берілген. «Математика» пәнін оқитын ТжКБ студенттеріне ұсынылады.
Constraining A General-Relativistic Frame-Dragging Model for Pulsed Radiation from a Population of Millisecond Pulsars in 47 Tucanae using GLAST/LAT
Creators: name: Venter, C.
name: de Jager, O. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although only 22 millisecond pulsars (MSPs) are currently known to exist in the globular cluster (GC) 47 Tucanae, this cluster may harbor 30-60 MSPs, or even up to ~200. In this Letter, we model the pulsed curvature radiation (CR) gamma-ray flux expected from a population of MSPs in 47 Tucanae. These MSPs produce gamma-rays in their magnetospheres via accelerated electron primaries which are moving along curved magnetic field lines. A GC like 47 Tucanae containing a large number of MSPs provides the opportunity to study a randomized set of pulsar geometries. Geometry-averaged spectra make the testing of the underlying pulsar model more reliable, since in this case the relative flux uncertainty is reduced by one order of magnitude relative to the variation expected for individual pulsars (if the number of visible pulsars N=100). Our predicted spectra violate the EGRET upper limit at 1 GeV, constraining the product of the number of visible pulsars N and the average integral flux above 1 GeV per pulsar. GLAST/LAT should place even more stringent constraints on this product, and may also limit the maximum average accelerating potential by probing the CR spectral tail. For N=22-200, a GLAST/LAT non-detection will lead to the constraints that the average integral flux per pulsar should be lower by factors 0.03-0.003 than current model predictions.
description: 10 pages, 2 figures, to appear in the Astrophysical Journal Letters
Lie-algebra Dolbeault cohomology and small deformations of nilmanifolds
Creators: name: Rollenske, Sönke
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32G05 (Primary), 32G08, 17B30, 53C30 (Secondary)

description: We consider nilmanifolds with left-invariant complex structure and prove that small deformations of such structures are again left invariant if the Dolbeault-cohomology of the nilmanifold can be calculated using left-invariant forms. By a result of Console and Fino this is generically the case. Our main tool is an analog of Dolbeault-cohomology for Lie-algebras with complex structure.
description: 19 pages; updated first part of arXiv:0709.0467v1 containing the results on small deformations. The results on deformations in the large will appear in an independent paper
The magnetic field and the location of the TeV emitter in Cygnus X-1 and LS 5039
Creators: name: Bosch-Ramon, V.
name: Khangulyan, D.
name: Aharonian, F. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cygnus X-1 and LS 5039 are two X-ray binaries observed at TeV energies. Both sources are compact systems, contain jet-like (radio) structures, and harbor very luminous O stars. A TeV signal has been found around the superior conjunction of the compact object in both objects, when the highest gamma-ray opacities are expected. We investigate the implications of finding TeV emission from Cygnus X-1 and LS 5039 around the superior conjunction, since this can give information on the system magnetic field and the location of the TeV emitter. Using the very high-energy spectra and fluxes observed around the superior conjunction in Cygnus X-1 and LS 5039, we compute the absorbed luminosity that is caused by pair creation in the stellar photon field for different emitter positions with respect to the star and the observer line of sight. The role of the magnetic field and electromagnetic cascading are discussed. For the case of inefficient electromagnetic cascading, the expected secondary synchrotron fluxes are compared with the observed ones at X-ray energies. We find that, in Cygnus X-1 and LS 5039, either the magnetic field in the star surroundings is much smaller than the one expected for O stars or the TeV emitter is located at a distance >10^12 cm from the compact object. Our results strongly suggest that the TeV emitters in Cygnus X-1 and LS 5039 are located at the borders of the binary system and well above the orbital plane. This would not agree with those models for which the emitter is well inside the system, like the innermost-jet region (Cygnus X-1 and LS 5039; microquasar scenario), or the region between the pulsar and the primary star (LS 5039; standard pulsar scenario).
description: A&A, in press, 4 pages, 3 figures, 1 table (minor changes)
Assessing Food Insecurity and Its Drivers among Smallholder Farming Households in Rural Oyo State, Nigeria: The HFIAS Approach
Creators: name: Otekunrin, Olutosin A.
name: Otekunrin, Oluwaseun A.
name: Sawicka, Barbara
name: Pszczółkowski, Piotr
Publisher: name: figshare
Year: 2021
Subjects: subject: 70108 Sustainable Agricultural Development
subject: FOS: Other agricultural sciences
subject: 70106 Farm Management, Rural Management and Agribusiness

description: Hunger and food insecurity take center stage in most debates in Africa, and in recent times with serious concerns about Nigeria. This study assessed food insecurity among farming households in rural Oyo State, Nigeria, using cross-sectional datasets from 211 farming households through a multi-stage sampling procedure. The Household Food Insecurity Access Scale (HFIAS) module was employed in assessing food insecurity status of farming households, and the ordered logit model (OLM) was used to analyze factors influencing food insecurity among farming households. The results revealed that 12.8% of the farming households were food secure while 87.2% had varying levels of food insecurity. The OLM results indicated that age, household head’s years of schooling, gender, farm size, farm experience, non-farm income, food expenditure, and access to extension service significantly influenced food insecurity among farming households. Based on the findings, efforts should be geared towards promoting households’ education-related intervention programs in order to improve their nutrition-related knowledge that can enhance their food security status. Additionally, there should be provision of rural infrastructural facilities such as piped water, rural electrification, and healthcare service that promote healthy living and enhance households’ agricultural productivity