cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Attenuating Dynamics of Strongly Interacting Fermionic Superfluids in SYK Solvable Models
Creators: name: Zhou, Tian-Gang
name: Zhang, Pengfei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quench dynamics of fermionic superfluids are an active topic both experimentally and theoretically. Using the BCS theory, such non-equilibrium problems can be reduced to nearly independent spin dynamics, only with a time-dependent mean-field pairing term. This results in persisting oscillations of the pairing strength in certain parameter regimes. However, experiments have observed that the oscillations decay rapidly when the interaction becomes strong, such as in the unitary Fermi gas. Theoretical analysis on this matter is still absent. In this work, we construct an SYK-like model to analyze the effect of strong interactions in a one-dimensional BCS system. We employ the large-$N$ approximation and a Green's function-based technique to solve the equilibrium problem and quench dynamics. Our findings reveal that a strong SYK interaction suppresses the pairing order. Additionally, we verify that the system quickly thermalizes with SYK interactions, whether it involves intrinsic pairing order or proximity effect, resulting in a rapid decay of the oscillation strength. The decay rates exhibit different scaling laws against SYK interaction, which can be understood in terms of the Boltzmann equation. This work represents a first step towards understanding the attenuating dynamics of strongly interacting fermionic superfluids.
description: 14 pages, 5 figures; appendix 2 pages, 1 figure
Exchange rate policy under sovereign default risk
Creators: name: Schabert, Andreas
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: Equilibrium
subject: Intertemporal insolvency
subject: Monetary policy options
subject: Small open economy
subject: 310
subject: 330
subject: 620

description: We examine monetary policy options for a small open economy where sovereign default might occur due to intertemporal insolvency. Under interest rate policy and floating exchange rates the equilibrium is indetermined. Under a fixed exchange rate the equilibrium is uniquely determined and independent of sovereign default.
description: Discussion Paper / SFB 823 ; 07/2011
Lateral organization of cell matrix proteins on the nano-scale
Creators: name: Mondry, Justine
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: Focal adhesion sites
subject: PALM
subject: Super resolution
subject: Protein dynamics
subject: 570

description: Cellular anchors are large accumulations of a multitude of multi-functional proteins and are known as focal adhesion sites. In this work, the spatial organization of a subset of cell-matrix proteins was analyzed, using the superresolution microscopy technique PALM. It was demonstrated, that all cellmatrix proteins form distinct areas of varying densities inside single focal adhesions. Highly dense protein accumulations can contain up to several tens of molecules and can span a diameter of more than hundred nanometers. However, no recognizable structure or polarity could be observed for such large protein accumulations. In order to study the temporal alterations and formation of such highly dense protein accumulations, the dynamic behavior of the adhesion receptor β3-integrin was analyzed. It was shown, that force inhibition can induce structural rearrangements, also leading to the redistribution of the density inside adhesion sites. However, force inhibition did not cause the complete disassembly of dense β3-integrin domains. Therefore, it is suggested that force can modulate the dense areas, but is not the initial inducer. Instead, it seems that an initial formation of dense domains occurs already in the very beginning of focal adhesion development, followed by a gradual immobilization of β3-integrin and thus leading to the formation of new adhesion sites. It was observed that the seed for some dense domains can be planted already in early maturation stages with the potential to increase its size upon adhesion expansion. Dense domains could even have a particular signaling function, as it was shown that the signaling protein FAK is primarily recruited to delimited areas inside focal adhesions, which could represent dense domains.
Hourglass Fermion Surface States in Stacked Topological Insulators with Nonsymmorphic Symmetry
Creators: name: Ezawa, Motohiko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently a nonsymmorphic topological insulator was predicted, where the characteristic feature is the emergence of a "hourglass fermion" surface state protected by the nonsymmorphic symmetry. Such a state has already been observed experimentally. We propose a simple model possessing the hourglass fermion surface state. The model is constructing by stacking the quantum-spin-Hall insulators with the interlayer coupling introduced so as to preserve the nonsymmorphic symmetry and the time reversal symmetry. The Dirac theory is also derived, whose analytical results reproduce the hourglass fermion surface state remarkably well. Furthermore, we discuss how the hourglass state is destroyed by introducing perturbations based on the symmetry analysis. Our results show that the hourglass fermion surface state is universal in the helical edge system with the nonsymmorphic symmetry.
description: 8 pages, 5 figures
Large Scale Limit of the Observed Galaxy Power Spectrum
Creators: name: Foglieni, Matteo
name: Pantiri, Mattia
name: Di Dio, Enea
name: Castorina, Emanuele
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The large scale limit of the galaxy power spectrum provides a unique window into the early Universe through a possible detection of scale dependent bias produced by primordial non Gaussianities. On such large scales, relativistic effects could become important and be confused for a primordial signal. In this Letter we provide the first consistent estimate of such effects in the observed galaxy power spectrum, and discuss their possible degeneracy with local primordial non Gaussianities. We also clarify the physical differences between the two signatures, as revealed by their different sensitivity to the large scale gravitational potential. Our results indicate that, while relativistic effects could easily account for 10% of the observed power spectrum, the subset of those with a similar scale dependence to a primordial signal can be safely ignored for current galaxy surveys, but it will become relevant for future observational programs.
description: 4 pages, 2 figures, code available on GitHub at https://github.com/foglienimatteo/GaPSE.jl. v2: minor modifications to match published version
Assessment of Safety of Injection and Related Medical Practices in Health Institutions at Sidama Zone, SNNPRS
Creators: name: W/Gebriel, Yoseph
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2004

description: Background: There is substantial discrepancy between much of the epidemiological evidence and the belief that nearly all of the HIV burden in sub-Sahara Africa can be accounted by heterosexual transmission and the sexual behavior of Africans. For this a number of observations raise the question of an alternative route of transmission, for which medical care and the use of injections are prime candidates. Objective: To assess the potential risk of transmission of blood born pathogens (HIV, HBV, and HCV) through needles and sharps in health care settings found at Sidama zone of SNNPRS. Methods: Health institutions based cross sectional survey was conducted from November 2003 to March 2004. From 22 government, 9 NGO and 9 private health institutions, 213 health care workers and 352 clients/patients were interviewed; 178 injection practices were observed; and dressing and delivery practices were observed in 37 and 27 health institutions respectively. Result: Accordingly, 74% of the observed injections were found out to be unsafe to the health workers, recipients or to the community. Contaminated and unsterile medical equipment that contact open skin or used for percutanous procedure were observed put ready for reuse in most health institutions. Most (97%) of the health institutes lack at least one equipment that was used for wound care or to assist delivery. Although, most the health care workers were aware of the transmission of diseases through contaminated vi needles, only 7% of them cited HBV, HCV, and HIV simultaneously. Thirty two percent of the health care workers reported a 12-month prevalence of accidental needle or sharp injury. 64% of these were deep or penetrating injuries. Most clients/patients (89.5%) were knowledgeable on the transmission of diseases through dirty needles. One hundred fifty seven (44.6%) of clients responded that they prefer oral drugs to injection preparations, which was preferred by 136(38.6%), when their children have fever. As opposed to the clients/patients, the majority (64.9%) of the HCWs claim that clients prefer injections when they appear to the out patient departments. Conclusion and recommendations: The study revealed that many injection and related medical practices were poor exposing clients/patients, health care workers and the community at risk for blood born pathogens. On job training for health care workers, and assessing reasons for the poor safety using assessment tool "A" was recommended. Key words Unsafe, Injection, medical, practice, health institution, blood born pathogens, health worker, clients, patients, clients
Integrative Förderung auf der Oberstufe Erfolgsfaktoren und Risiken aus Sicht der Klassenlehrperson, der heilpädagogischen Fachperson und der Schülerin oder des Schülers
Creators: name: Fasciati Leuenberger, Rebekka
Publisher: name: Zenodo
Year: 2021
Subjects: Sonderpädagogik
Lernbeeinträchtigung
Schulische Förderung
Masterarbeit

description: Die Daten über die integrative Förderung von Jugendlichen mit einem ISR-Status wegen einer Lernbeeinträchtigung wurden mit 6 Leitfadeninterviews aus 2 Arrangements erhoben. Das Wohlbefinden der Jugendlichen ist gut. Es wird durch die soziale Akzeptanz innerhalb der Klasse und die gemeinsame integrative Haltung der Lehr- und Fachpersonen positiv beeinflusst. Die Jugendlichen profitieren von einer tragfähigen Beziehung zur KLP und zur heilpädagogischen Fachperson. Das Gelingen der schulischen Förderung wird unterschiedlich wahrgenommen. Die Jugendlichen fühlen sich in der Klasse ab und zu überfordert und unsicher. Es zeigt sich, dass es für eine gute schulische Förderung neben der Integration in den Klassenunterricht auch Phasen des selbstständigen Lernens und Kleinklassenunterricht braucht. Die flexiblen Settings werden bestenfalls von der heilpädagogischen Fachperson koordiniert und betreut.
Synthese biologisch interessanter Glyco- und Phosphopeptide
Creators: name: Kuder, Norman
Publisher: name: Universität Dortmund
Year: 2001
Subjects: subject: Glycopeptide
subject: Phosphopeptide
subject: Kernimport
subject: Tau-Protein
subject: v-Jun-Protein
subject: Glycopeptides
subject: Phosphopeptides
subject: Nuklear import
subject: Tau-protein
subject: v-Jun-protein
subject: 540

description: Für die Funktionsweise lebender Zellen ist die inter- und intrazelluläre Kommunikation von zentraler Bedeutung. Diese Kommunikation verläuft häufig über Phosphorylierungen/ Dephosphorylierungen an Proteinen. Zur Aufklärung dieser Kommunikationsprozesse stellen phosphorylierte und glycosylierte Proteinfragmente ein wichtiges Hilfsmittel dar. Ihre Synthese wird durch die hohe Labilität der Aminosäurekonjungate erschwert.Um die Leistungsfähigkeit moderner Phosphorylierungsmethoden in Lösung unter Beweis zu stellen, wurde das dreifach phosphorylierte Pentapeptid 1 des menschlichen t-Proteins dargestellt.[1] Dies gelang durch sequentielle N-terminale Verlängerung der Peptidkette mit anschließender Phosphorylierung. Zur permanenten Blockierung der Funktionalitäten wurden Schutzgruppen des Allyl-Typs benutzt, die in einem globalen Entschützungsschritt unter milden Bedingungen entfernt werden konnten.[2]Zur Aufklärung des Kernimports in Abhängigkeit der Seitenkettenmodifikation wurde die fluoreszenzmarkierte Kernlokalisierungssequenz 3 des v-Jun-Proteins in der glycosylierten, phosphorylierten und unmodifizierten Form dargestellt. Anschließend an die Synthese der benötigten Aminosäurebausteine wurden die Dekapeptide an fester Phase aufgebaut. Nach der Entfernung der säurelabilen Seitenkettenschutzgruppen wurde die Peptide von der festen Phase abgespalten und mittels HPLC aufgereinigt. Sie stehen damit für die geplanten Mikroinjektionsexperimente zur Verfügung.Literatur:[1]N. Kuder, T. Zelinski, T. Pathak, O. Seitz, H. Waldmann, Bioorg. Med. Chem. 2000, 8, 2433-2439.[2]Y. Hayakawa, S. Wakabayashi, H. Kato, R. Noyori, J. Am. Chem. Soc. 1990, 112, 1691-1696.
Martin Perez, Balbino, Obras de San Agustin. XXI. Enarraciones sobre los Salmos (3.°), ed. bilingue da BAC. vol. de 1033 ps. 130x200. Madrid. 1966
Creators: name: Correia, Francisco Carvalho
Publisher: name: Theologica
Year: 1966

description: Theologica, v. 1 n. 4 (1966)
Pinto, J. Barbosa, S. J., Senhor… Orações para meditar. Vol. de 80 ps. 150x200. Secretariado Nacional do Apostolado da Oração. Braga. 1966
Creators: name: Marques, José Silva
Publisher: name: Theologica
Year: 1966

description: Theologica, v. 1 n. 4 (1966)
Computing partial transposes and related entanglement functions
Creators: name: Maziero, Jonas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The partial transpose (PT) is an important function for entanglement testing and quantification and also for the study of geometrical aspects of the quantum state space. In this article, considering general bipartite and multipartite discrete systems, explicit formulas ready for the numerical implementation of the PT and of related entanglement functions are presented and the Fortran code produced for that purpose is described. What is more, we obtain an analytical expression for the Hilbert-Schmidt entanglement of two-qudit systems and for the associated closest separable state. In contrast to previous works on this matter, we only use the properties of the PT, not applying Lagrange multipliers.
description: The code can be accessed in https://github.com/jonasmaziero/LibForQ
Composition of a data-driven workflow in the cloud
Creators: name: Olaya, Paula
name: Luettgau, Jakob
name: Naweiluo Zhou
name: Scorzelli, Giorgio
name: Lofstead, Jay
name: When, Sophia
name: I-Hsin Chung
name: Seetharami Seelam
name: Taufer, Michela
Publisher: name: Zenodo
Year: 2022

description: Platforms in the cloud have been tuned for service deployments; when used out of the shelf for scientific workflows, the performance decreases. We can leverage services deployments (e.g., Openshift, Kubernetes) to scale scientific workflows in an automated way
ROCS-Derived Features for Virtual Screening
Creators: name: Kearnes, Steven
name: Pande, Vijay
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Rapid overlay of chemical structures (ROCS) is a standard tool for the calculation of 3D shape and chemical ("color") similarity. ROCS uses unweighted sums to combine many aspects of similarity, yielding parameter-free models for virtual screening. In this report, we decompose the ROCS color force field into "color components" and "color atom overlaps", novel color similarity features that can be weighted in a system-specific manner by machine learning algorithms. In cross-validation experiments, these additional features significantly improve virtual screening performance (ROC AUC scores) relative to standard ROCS.
description: See "Version information" section
The effect of an early introduction to computers on the logical thinking of tertiary orientation programme (TOP) students at Frankston College of Technical and Further Education
Creators: name: Collins, Lindsay W.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Heavy meson spectroscopy under strong magnetic field
Creators: name: Yoshida, Tetsuya
name: Suzuki, Kei
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Spectra of the neutral heavy mesons, $η_c(1S,2S)$, $J/ψ$, $ψ(2S)$, $η_b(1S,2S,3S)$, $Υ(1S,2S,3S)$, $D$, $D^\ast$, $B$, $B^\ast$, $B_s$ and $B_s^\ast$, in a homogeneous magnetic field are analyzed in a potential model of constituent quarks. To obtain anisotropic wave functions and the corresponding eigenvalues, the cylindrical Gaussian expansion method is applied, where the wave functions for transverse and longitudinal directions in the cylindrical coordinate are expanded by the Gaussian bases separately. Energy level structures in the wide range of magnetic fields are obtained and the deformation of the wave functions is shown, which reflects effects of the spin mixing, the Zeeman splitting and quark Landau levels. The contribution from the magnetic catalysis in heavy-light mesons is discussed as a change of the light constituent quark mass.
description: 21 pages, 15 figures
Illanes, J. L., La santificación del trabajo, tema de nuestro tiempo. Vol. de 88 ps. 140x180. Cuadernos Palabra n.° 1. Ediciones Palabra, S. A. (Epalsa). Madrid. 1966
Creators: name: Marques, José Silva
Publisher: name: Theologica
Year: 1966

description: Theologica, v. 1 n. 4 (1966)
Multiple Magnetization Plateaus and the Magnetic Structures in $S=1/2$ Heisenberg Model on the Checkerboard Lattice
Creators: name: Morita, Katsuhiro
name: Shibata, Naokazu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the ground state of $S = 1/2$ Heisenberg model on the checkerboard lattice in a magnetic field by the density matrix renormalization group (DMRG) method with the sine-square deformation. We obtain magnetization plateaus at $M/M_{\rm sat}=$0, 1/4, 3/8, 1/2, and 3/4 where $M_{\rm sat}$ is the saturated magnetization. The obtained 3/4 plateau state is consistent with the exact result, and the 1/2 plateau is found to have a four-spin resonating loop structure similar to the six-spin loop structure of the 1/3 plateau of the kagome lattice. Different four-spin loop structures are obtained in the 1/4 and 3/8 plateaus but no corresponding states exist in the kagome lattice. The 3/8 plateau has a unique magnetic structure of three types of four-spin local quantum states in a $4\sqrt{2}\times2\sqrt{2}$ magnetic unit cell with a 16-fold degeneracy.
title: Schülergewalt und aktuelle Individualisierungsrisiken
title: ein Beitrag zur Analyse gesamtgesellschaftlicher, familialer und schulischer Entstehungsbedingungen
titleType: AlternativeTitle
Creators: name: Holderrieth, Renate
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: Schülergewalt
subject: Individualisierung
subject: 300

description: Die vorliegende Dissertation beschäftigt sich mit der sozialen Problematik von Schülergewalt. Das besondere Forschungsziel meiner Arbeit liegt in Untersuchungen zu der Frage, inwiefern durch ein Kausalgefüge zwischen der gesamtgesellschaftlichen Ebene und mesostrukturellen Individualisie-rungseinflüssen im familialen und schulischen Bereich auf der mikrosozialen Schülerhandlungsebene eine prozeßhafte Gewaltgenese begünstigt werden kann.
Mehrwert der Arbeit mit einem Hund in einer Sonderschule
Creators: name: Straub, Dora
Publisher: name: Zenodo
Year: 2021
Subjects: Sonderpädagogik
Schulhund
Sonderschule
Masterarbeit

description: Die Arbeit mit den Schülerinnen und Schülern einer Sonderschule zeigt, dass viele der Kinder Mühe haben, am Morgen aufzustehen und motiviert den Unterricht zu besuchen. Da viele Menschen positiv auf Hunde reagieren, untersucht die Masterarbeit, ob ein Hund auf die Motivation, die Leistungsmotivation und die Beziehung zwischen Lehrenden und Lernenden wirkt. Der theoretische Hintergrund beschäftigt sich mit der Beziehung zwischen Mensch und Hund. Die Begriffe Motivation, Leistungsmotivation und Beziehung werden definiert und in Verbindung zur Schule gebracht.
 Befragungen und Beobachtungen als Methodik dokumentieren die Wirkungen des Hundes auf die Versuchsgruppe. Die Ergebnisse zeigen die Tendenz auf, dass sich ein Hund im Klassenzimmer positiv auf die Motivation, die Arbeitsmotivation und ebenfalls auf die Beziehung auswirkt.
A fluctuation test for constant Spearman’s rho
Creators: name: Dehling, Herold
name: Kampen, Maarten Van
name: Vogel, Daniel
name: Wied, Dominik
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: copula
subject: mixing
subject: multivariate sequential empirical process
subject: robustness
subject: structural break
subject: 310
subject: 330
subject: 620

description: We propose a CUSUM type test for constant correlation that goes beyond a previously suggested correlation constancy test by considering Spearman's rho in arbitrary dimensions. By using copula-based expressions, we simultaneously extend a previously suggested copula constancy test. We calculate the asymptotic null distribution using an invariance principle for the sequential empirical copula process. The limit distribution is free of nuisance parameters and critical values can be obtained without bootstrap techniques. We give a local power result and analyse the test's behaviour in small samples.
description: Discussion Paper / SFB 823;16/2011
Graviton-photon production with a massive spin-2 particle
Creators: name: Gill, Joshua A.
name: Sengupta, Dipan
name: Williams, Anthony G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A recent letter Cai et al. [2107.14548] within a phenomenological dark matter framework with a massive graviton in the external state indicated a divergence with increasing centre-of-momentum energy arising from the longitudinal polarizations of the graviton. In this letter we point out that in processes such as graviton-photon production from matter annihilation, $f\bar{f} \to Gγ$, no such anomalous divergences occur at tree-level. This then applies to other tree-level amplitudes related by crossing symmetry such as $γf \to Gf$, $Gf \to γf$, $γf \to Gf$, $f \to fGγ$ and so on. We show this by explicitly computing the relevant tree-level diagrams, where we find that delicate cancellations ensure that all anomalously growing terms are well-regulated. Effectively at tree-level this is consistent with the operation of a Ward identity associated with the external photon for such amplitudes. The same tree-level results apply if the photon is replaced by a gluon. These results are important for cosmological models of dark matter within the framework of extra dimensions.
description: 4 +5 pages, 1 figure. The article is now updated to match the published version
Disposal of hazardous industrial wastes : a case study study of industrial waste generation and disposal in a large scale iron ore mining operation
Creators: name: Andrew, Graham M.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
MPEC 2023-E82 : 2023 EC1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 EC1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
NSDF User Communities Workgroup Update
Creators: name: Gyulassy, Attila
name: Luettgau, Jakob
name: Petruzza, Steve
name: Scorzelli, Giorgio
name: Tarcea, Glenn
name: Taufer, Michela
name: Naweiluo Zhou
Publisher: name: Zenodo
Year: 2022

description: Report on existing UC software/hardware/practices to guide NSDF technical development
Rapid assessment of the conservation significance of roadside vegetation : a proposed methodology
Creators: name: Lloyd, David .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Thymoquinone and curcumin attenuate gentamicin-induced renal oxidative stress, inflammation and apoptosis in rats
Creators: name: Mahmoud, Ayman M.
name: Ahmed, Osama M.
name: Galaly, Sanaa R.
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: gentamicin
subject: nephrotoxicity
subject: thymoquinone
subject: curcumin
subject: inflammation
subject: apoptosis
subject: Bcl-2
subject: 610

description: The present study was aimed to investigate the possible protective effects of thymoquinone (TQ) and curcumin (Cur) on gentamicin (GM)-induced nephrotoxicity in rats. Rats were divided into four groups as follows: group 1 received normal saline and served as normal controls, group 2 received GM only, group 3 concurrently received GM and TQ and group 4 concurrently received GM and Cur. At day 21, rats were sacrificed and samples were collected for assaying serum tumor necrosis factor alpha (TNF-α), urea and creatinine levels, and renal lipid peroxidation, glutathione (GSH) content as well as glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities. In addition, kidneys were collected for histopathological examination and immunohistochemical determination of the antiapoptotic protein, B-cell lymphoma 2 (Bcl-2). The biochemical results showed that GM-induced nephrotoxicity was associated with a significant increase in serum TNF-α, urea and creatinine as well as renal lipid peroxidation. On the other hand, renal GSH content and GPx and SOD activities were significantly declined. Concomitant administration of either TQ or Cur efficiently alleviated the altered biochemical and histopathological features. In conclusion, both TQ and Cur showed more or less similar marked renoprotective effect against GM-induced nephrotoxicity through their antioxidant, anti-inflammatory and anti-apoptotic efficacies.
description: EXCLI Journal ; Vol. 13, 2014
Space Development and Space Science Together, an Historic Opportunity
Creators: name: Metzger, Philip
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Popular Physics (physics.pop-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The national space programs have an historic opportunity to help solve the global-scale economic and environmental problems of Earth while becoming more effective at science through the use of space resources. Space programs will be more cost-effective when they work to establish a supply chain in space, mining and manufacturing then replicating the assets of the supply chain so it grows to larger capacity. This has become achievable because of advances in robotics and artificial intelligence. It is roughly estimated that developing a lunar outpost that relies upon and also develops the supply chain will cost about 1/3 or less of the existing annual budgets of the national space programs. It will require a sustained commitment of several decades to complete, during which time science and exploration become increasingly effective. At the end, this space industry will capable of addressing global-scale challenges including limited resources, clean energy, economic development, and preservation of the environment. Other potential solutions, including nuclear fusion and terrestrial renewable energy sources, do not address the root problem of our limited globe and there are real questions whether they will be inadequate or too late. While industry in space likewise cannot provide perfect assurance, it is uniquely able to solve the root problem, and it gives us an important chance that we should grasp. What makes this such an historic opportunity is that the space-based solution is obtainable as a side-benefit of doing space science and exploration within their existing budgets. Thinking pragmatically, it may take some time for policymakers to agree that setting up a complete supply chain is an achievable goal, so this paper describes a strategy of incremental progress.
description: 38 pages. Accepted for publication in Space Policy journal
Production of exotic charmonium in $γγ$ interactions at hadronic colliders
Creators: name: Moreira, B. D.
name: Bertulani, C. A.
name: Goncalves, V. P.
name: Navarra, F. S.
Publisher: name: arXiv
Year: 2016
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: In this paper we investigate the Exotic Charmonium (EC) production in $γγ$ interactions present in proton-proton, proton-nucleus and nucleus-nucleus collisions at the CERN Large Hadron Collider (LHC) energies as well as for the proposed energies of the Future Circular Collider (FCC). Our results demonstrate that the experimental study of these processes is feasible and can be used to constrain the theoretical decay widths and shed some light on the configuration of the considered multiquark states.
description: 7 pages, 2 figures, 3 tables. v2: Revised version published in Physical Review D
Transgenerationale Traumatisierung im Kontext der Schulischen Heilpädagogik. Grundhaltungen und Handlungsmodelle der Traumapädagogik im Umgang mit betroffenen Kindern in der Regelschule
Creators: name: Schacher, Lea
Publisher: name: Zenodo
Year: 2020
Subjects: Sonderpädagogik
Traumapädagogik
Bindungsforschung
Psychotraumatologie
Masterarbeit

description: Wenn Traumata von der Elterngeneration ungenügend verarbeitet wurden, können sie in den Interaktionen der Gegenwart unbewusst fortwirken und Einfluss auf die Entwicklung der nächsten Generation nehmen - man spricht dann von einer transgenerationalen Weitergabe traumatischer Erfahrungen. Die vorliegende Masterarbeit geht der Frage nach, welche traumapädagogische Grundhaltungen und Handlungsmodelle heilpädagogische Fachpersonen im Umgang mit von transgenerationaler Traumatisierung betroffenen Lernenden nutzen können. Es werden aktuelle Erkenntnisse aus der Psychotraumatologie, Bindungsforschung sowie Traumapädagogik herangezogen und mit Wissen über die transgenerationale Traumaweitergabe verknüpft. Die daraus resultierenden Handlungsmöglichkeiten können die Sicherheit und Stabilität, korrigierende Beziehungserfahrungen sowie die Selbstbemächtigung fördern und unterstützen.
Electron addition spectral functions of low-density polaron liquids
Creators: name: Nocera, Alberto
name: Berciu, Mona
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Spectral functions are important quantities that contain a wealth of information about the quasiparticles of a system, and that can also be measured experimentally. For systems with electron-phonon coupling, good approximations for the spectral function are available only in the Migdal limit (at Fermi energies much larger than the typical phonon frequency, $E_F\gg Ω$, requiring a large carrier concentration $x$) and in the single polaron limit (at $x=0$). Here we show that the region with $x\ll 1$ ($E_F <Ω$) can also be reliably investigated with the Momentum Average (MA) variational approximation, which essentially describes the formation of a polaron above an inert Fermi sea. Specifically, we show that for the one-dimensional spinless Holstein model, the MA spectral functions compare favorably with those calculated using variationally exact density matrix renormalization group simulations (DMRG) evaluated directly in frequency-space, so long as $x<0.1$ and the adiabaticity ratio $Ω/t>0.5$. Unlike in the Migdal limit, here 'polaronic physics' emerges already at moderate couplings. The relevance of these results for a spinful low-$x$ metal is also discussed.
description: 10 pages, 3 figures, Submission to SciPost
Characteristics Influencing Usage of Modern Contraception
Creators: name: Kebede, Fekreab
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 1989

description: A case control study has been conducted in Tegulet and Bulga Awraja/district, Northern Shoa Administrative Region. The purpose of the study was to assess the various characteristics influencing modern contraception usage among users as compared to never-users and dropouts from family planning clinics . A total of 848 women ages 15 - 49 were interviewed. Among these, 41.4% were users while 42.1% and 16.5% were never-users and dropouts, respectively. In addition, husbands of 150 users, 115 never users and 49 dropouts were interviewed. EKaminat ~ on of the various socio-demographic and reproductive characteristics showed significant differences in most of the variables between users and never-users. compared to never-users, users were older (mean age 27.1 years versus 25.9 years), more likely to be married (56% versus 47 %) or divorced (31% versus 25%), have a higher mean educational level (grade 5.3 versus 4.8), are more likely to work outside the horne for cash payment (43% versus 28%), belong to the high income class (30% versus 17%) and have more ch il dren (2 live-children or more) (72% versus 45%). vii The vast ma j ority of users ( 95%) scored 3 and above in modern contraception knowledge whereas only 51% of the never-users scored so high. Ni nety percent of the users' husbands scored 3 and above on modern contraceptive knowledge while only 71% of never-us ers' scored this high. A higher approval of modern contraception and sex education to school children was seen among users' husbands (99% and 88%, respectively) as compared to never-users (77% and 74%, respectively). Husband-wife communication on family planning was significantly higher among users (41%) than never-users (15%). Of the variables tested between users and dropouts very few significant differences were demonstrated. Current users had used modern contraception for a mean period of 23.5 months while dropouts had used it for a mean period of 17.9 months. A higher proportion of dropouts were found to be dissatisfied with the method refil l interval compared to users (1 9% versus 10%) . viii J Multiple regression showed that of the variables measured, the number of pregnancies a woman had had, modern contraception knowledge and age, were the main predictors of usage of modern contraception (R2 = .13). Desire t o have more children (40%), having no husband/sexual partner (19%) and fear of adverse effects of modern contraceptives (15%) were given as the major reasons for nonuse of modern contraceptives by the never-users. Dropouts cited the desire to have additional children ( 27% ), becoming pregnant (21%), fear of adverse effects of modern contraceptives (21%), no method refill (12%) and husband opposition (7%) as the major reasons for discontinuatlon of modern contraception. Recommendations have been given based on the outcome of the study.
title: Strategies for the Scientific Progress of the Developing Countries in the New Millenium
title: The case of Serbia in comparison with Slovenia and South Korea
titleType: AlternativeTitle
Creators: name: Uskokovic, Vuk
name: Sevkusic, Milica
name: Uskokovic, Dragan P.
Publisher: name: Technische Universität Dortmund
Year: 2010
Subjects: subject: 300
subject: 330

description: The underlying premise of this essay is the hypothesis that quality and significance of scientific research in any given society could be used as mirrors reflecting its true prosperity. By comparing the two cases of comparatively prosperous scientific management of South Korea and Slovenia, with the example of Serbia, illustrating the poor scientific and industrial productivity typically faced by the developing countries, a few general guidelines for the evolution of a society towards higher scientific and social prominence are outlined. It is argued that the most favourable pattern of growth should be based on the parallel progress in control of scientific policies on one side and the excellence of scientific and basic education on the other. The “leapfrog” tactics, according to which the less developed countries should learn from the natural cycle of alternate progressions and regressions that the developed countries experience, is especially highlighted. Applied research is demonstrated to be most productive when it is carried out on top of already established and prolific infrastructural and industrial bases. Examples are given in favour of the fact that the technological design and industrial solutions shown as successful in the context of a developed society, often turn out to be impractical and inefficient when straightforwardly transformed to less developed social settings. As a result, the strategy of adjustment of production capacities to local needs is advised to be considered when implementing a new technology on different social, political and economic grounds. Finally, it is concluded that to provide conditions for effective transfer and implementation of advanced know-how and novel technologies, embedment into international science and engineering networks is required as much as strong and sustainable local scientific and technological bases.
description: Science, Technology & Innovation Studies
Axially symmetric static sources of gravitational field
Creators: name: Hernandez-Pastora, J. L.
name: Herrera, L.
name: Martin, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A general procedure to find static and axially symmetric, interior solutions to the Einstein equations is presented. All the so obtained solutions, verify the energy conditions for a wide range of values of the parameters, and match smoothly to some exterior solution of the Weyl family, thereby representing globally regular models describing non spherical sources of gravitational field. In the spherically symmetric limit, all our models converge to the well known incompressible perfect fluid solution.The key stone of our approach is based on an ansatz allowing to define the interior metric in terms of the exterior metric functions evaluated at the boundary source. Some particular sources are obtained, and the physical variables of the energy-momentum tensor are calculated explicitly, as well as the geometry of the source in terms of the relativistic multipole moments. The total mass of different configurations is also calculated, it is shown to be equal to the monopole of the exterior solution.
description: 17 pages, 13 figures and 3 tables, typos corrected, published in CQG: Class. Quantum Grav. 33, 235005, (2016)
R.-J. Hesbert, Corpus Antiphonlium Officii, vol. I, Manuscripti «cursus romanus», Rerum ecclesiasticarum documenta cura Pontificii Athenaei Sancti Anselmi de Urbe edita, Casa editrice Herder, Roma 1963, XXIX+448 ps
Creators: name: Rocha, Pedro
Publisher: name: Theologica
Year: 1966

description: Theologica, v. 1 n. 4 (1966)
title: Vertical relationships, competition, knowledge search and innovation
title: Empirical evidence for German enterprises
titleType: AlternativeTitle
Creators: name: Köhler, Christian
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: Innovation
subject: Vertical relationships
subject: Bargaining
subject: Buyer power
subject: Competition
subject: Knowledge search
subject: R&D
subject: Innovation success
subject: 330
subject: Innovation
subject: Vertikale Bindung
subject: Verbraucherverhalten
subject: Wettbewerb
subject: Forschung und Entwicklung

description: This thesis deals with modern topics in industrial organization and in economics of innovation in particular. It encompasses four empirical studies which are related to both the aims expressed in the Europe 2020 strategy as well as the means to reach them. Chapter 2 deals with issues of bargaining in vertical relationships. The first study of this chapter explores how bargaining affects the R&D profitability of suppliers. The results show that a supplier’s bargaining power is a crucial determinant of R&D profitability. The second study in this chapter examines if buyer power is detrimental to suppliers’ innovation incentives and shows that this is indeed the case. The negative effect of buyer power is however mitigated by downstream competition intensity if interaction effects are included. The third chapter deals with the relationship between competition intensity and innovation incentives. There is a long-standing interest in this question and the chapter contributes to the literature by supplying results derived from German firm-level data. In addition, the results of two competition measures are contrasted and the technological distance of a firm – which is argued to have an effect on firms’ innovation incentives as well – is accounted for. The results provide evidence for a negative effect of average competition levels on firms’ innovation incentives. The fourth chapter is dedicated to the knowledge search of innovative firms and explores patterns of knowledge screening in different sectors with regards to their contribution to innovation success. This chapter contributes to the rich literature on open innovation.
Discrete trigonometric and hyperbolic systems: An overview
Creators: name: Zemánek, Petr
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 39A12, 39-06, 26D05, 33B10

description: In this paper we present an overview of results for discrete trigonometric and hyperbolic systems. These systems are discrete analogues of trigonometric and hyperbolic linear Hamiltonian systems. We show results which can be viewed as discrete n-dimensional extensions of scalar continuous trigonometric and hyperbolic formulas
Constraining the Gravitational Potential from the Projected Morphology of Extragalactic Tidal Streams
Creators: name: Nibauer, Jacob
name: Bonaca, Ana
name: Johnston, Kathryn V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The positions and velocities of stellar streams have been used to constrain the mass and shape of the Milky Way's dark matter halo. Several extragalactic streams have already been detected, though it has remained unclear what can be inferred about the gravitational potential from only 2D photometric data of a stream. We present a fast method to infer halo shapes from the curvature of 2D projected stream tracks. We show that the stream curvature vector must point within 90 deg of the projected acceleration vector, in the absence of recent time-dependent perturbations. While insensitive to the total magnitude of the acceleration, and therefore the total mass, applying this constraint along a stream can determine halo shape parameters and place limits on disk-to-halo mass ratios. The most informative streams are those with sharp turns or flat segments, since these streams sample a wide range of curvature vectors over a small area (sharp turns) or have a vanishing projected acceleration component (flat segments). We apply our method to low surface brightness imaging of NGC 5907, and find that its dark matter halo is oblate. Our analytic approach is significantly faster than other stream modeling techniques, and indicates what parts of a stream contribute to constraints on the potential. The method enables a measurement of dark matter halo shapes for thousands of systems using stellar stream detections expected from upcoming facilities like Rubin and Roman.
description: 31 pages, 13 figures. Accepted for publication in ApJ
Optische Detektion der magnetischen Resonanz mit modengekoppelten Femtosekunden-Pulsen
Creators: name: Schmidt, Volker
Publisher: name: Universität Dortmund
Year: 2000
Subjects: subject: ferromagnetic resonance
subject: Ferromagnetische Resonanz
subject: Linearer Kerr-Effekt
subject: magnetic resonance
subject: Magnetische Resonanz
subject: mode locking
subject: Modenkopplung
subject: optical detection
subject: Optical Kerr-effect
subject: Optische Detektion
subject: paramagnetic resonance
subject: Paramagnetische Resonanz
subject: pulse laser
subject: Pulslaser
subject: Quadratischer Kerr-Effekt
subject: 530

description: Die vorliegende Arbeit beschäftigt sich mit dem Aufbau eines neuartigen Spektrometers zur Elektronen-Paramagnetischen Resonanz. Die konventionelle magnetische Resonanz wurde hierbei um eine optisch gepulste Detektion, mittels Titan-Saphir-Femtosekunden-Pulslaser erweitert. Als Proben wurden mit diesem neuen Spektrometer Rubin (gepulste ODEPR in Transmission), bzw. ein Fe/V-Multilayer (gepulste ODFMR in Reflektion) untersucht. Die Wechselwirkung zwischen optischer Welle und Magnetisierung der Probe wurde durch das Bild der kohärenten Raman-Streuung beschrieben. Während zur optischen Detektion der Bulk-Atome in Rubin der "Magnetisch Zirkulare Dichroismus (MCD) verwendet wurde, kam in Reflektion am genannten Schichtsystem der "Kerr-Effekt" - zur Ankopplung der Magnetisierung an die optische Welle - zum Einsatz. Dieser Effekt eignet sich in zweiter Ordnung auch um Oberflächen zu untersuchen. Zuvor wurden daher eine Reihe von Untersuchungen zum statischen Kerr-Effekt durchgeführt. Der Vergleich zwischen dem linearen und dem quadratischen Kerr-Effekt wurde dann durch Oberflächenfrequenzverdopplung mit Hilfe des Femtosekunden-Pulslasers möglich: Die Erzeugung eines X (2)-Prozesses ist in einem inversionssymmetrischen Medium nicht möglich. Sehrwohl aber an der Oberfläche, da hier die Symmetrie gebrochen wird. Dies erlaubt es, die Magnetisierung auf die Oberfläche (ca. 3-5 Monolagen) zu beschränken. Eine solche niedrige Wechselwirkungszone erfordert zur effizienten Oberwellenerzeugung recht hohe Grundwellen-Pulsintensitäten im Bereich von GW/cm 2. Selbst mit einem leistungsstarken Lasersystem, wie dem Ti:Sa-Pulslaser, lassen sich dann nur Oberwellenleistungen im Bereich einiger hundert Femtowatt erzeugen. Um die Ergebnisse aus den optischen Messungen mit herkömmlichen Methoden vergleichen zu können, wurde auch die konventionelle ferromagnetische Resonanz mitttels ESR-Spektrometer auf die Fe/V-Probe angewendet. Hierbei zeigten sich bereits wesentliche Unterschiede zur linearen ODFMR. Obwohl noch keine eindeutige, dynamische Oberflächenmagnetisierung abgelichtet werden konnte, deuten doch alle erhaltenen Ergebnisse aus dieser Arbeit darauf hin, dass sich diese Methode zur oberflächensensitiven Untersuchung im atomaren Bereich eignet.