cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical model of the Gross-Pitaevskii equation for rotating Bose-Einstein condensates using smoothed-particle hydrodynamics
Creators: name: Tsuzuki, Satori
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This study proposed a new numerical scheme for vortex lattice formation in a rotating Bose-Einstein condensate (BEC) using smoothed particle hydrodynamics (SPH) with an explicit real-time integration scheme. Specifically, the Gross-Pitaevskii (GP) equation was described as a complex representation to obtain a pair of time-dependent equations, which were then solved simultaneously following discretization based on SPH particle approximation. We adopt the 4th-order Runge-Kutta method for time evolution. We performed simulations of a rotating Bose gas trapped in a harmonic potential, showing results that qualitatively agreed with previously reported experiments and simulations. The geometric patterns of formed lattices were successfully reproduced for several cases, for example, the hexagonal lattice observed in the experiments of rotating BECs. Consequently, it was confirmed that the simulation began with the periodic oscillation of the condensate, which attenuated and maintained a stable rotation with slanted elliptical shapes; however, the surface was excited to be unstable and generated ripples, which grew into vortices and then penetrated the inside the condensate, forming a lattice. We confirmed that each branch point of the phase of wavefunctions corresponds to each vortex. These results demonstrate our approach at a certain degree of accuracy. In conclusion, we successfully developed a new SPH scheme for the simulations of vortex lattice formation in rotating BECs.
description: The following article has been accepted by Physics of Fluids. After it is published, it will be found at https://aip.scitation.org/journal/phf
Emergent modified gravity: The perfect fluid and gravitational collapse
Creators: name: Duque, Erick I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Emergent modified gravity is a canonical theory based on general covariance where the spacetime is not fundamental, but rather an emergent object. This feature allows for modifications of the classical theory and can be used to model new effects, such as those suggested by quantum gravity. We discuss how matter fields can be coupled to emergent modified gravity, realize the coupling of the perfect fluid, identify the symmetries of the system, and explicitly obtain the Hamiltonian in spherical symmetry. We formulate the Oppenheimer-Snyder collapse model in canonical terms, permitting us to extend the model to emergent modified gravity and obtain an exact solution to the dust collapsing from spatial infinity including some effects suggested by quantum gravity. In this solution the collapsing dust forms a black hole, then the star radius reaches a minimum with vanishing velocity and finite positive acceleration, and proceeds to emerge out now behaving as a white hole. While the geometry on the minimum-radius surface is regular in the vacuum, it is singular in the presence of dust. However, the fact that the geometry is emergent, and the fundamental fields that compose the phase-space are regular, allows us to continue the canonical solution in a meaningful way, obtaining the global structure for the interior of the star. The star-interior solution is complemented by the vacuum solution describing the star-exterior region by a continuous junction at the star radius. This gluing process can be viewed as the imposition of boundary conditions, which is non-unique and does not follow from the equations of motion. This ambiguity gives rise to different possible physical outcomes of the collapse. We discuss two such phenomena: the formation of a wormhole and the transition from a black hole to a white hole.
description: 49 pages, 7 figures; added references, typos corrected
Microsatellite analysis reveals connectivity among geographically distant transmission zones of Plasmodium vivax in the Peruvian Amazon: A critical barrier to regional malaria elimination
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Adolescent
Adult
Aged
Aged, 80 and over
Child
Child, Preschool
Disease Transmission, Infectious
Female
Genotype
Genotyping Techniques
Humans
Incidence
Infant
Infant, Newborn
Longitudinal Studies
Malaria, Vivax
Male
Microsatellite Repeats
Middle Aged
Molecular Epidemiology
Peru
Plasmodium vivax
Young Adult

description: © 2019 Manrique et al. Despite efforts made over decades by the Peruvian government to eliminate malaria, Plasmodium vivax remains a challenge for public health decision-makers in the country. The uneven distribution of its incidence, plus its complex pattern of dispersion, has made ineffective control measures based on global information that lack the necessary detail to understand transmission fully. In this sense, population genetic tools can complement current surveillance. This study describes the genetic diversity and population structure from September 2012 to March 2015 in three geographically distant settlements, Cahuide (CAH), Lupuna (LUP) and Santa Emilia (STE), located in the Peruvian Amazon. A total 777 P. vivax mono-infections, out of 3264, were genotyped. Among study areas, LUP showed 19.7% of polyclonal infections, and its genetic diversity (Hexp) was 0.544. Temporal analysis showed a significant increment of polyclonal infections and Hexp, and the introduction and persistence of a new parasite population since March 2013. In STE, 40.1% of infections were polyclonal, with Hexp = 0.596. The presence of four genetic clusters without signals of clonal expansion and infections with lower parasite densities compared against the other two areas were also found. At least four parasite populations were present in CAH in 2012, where, after June 2014, malaria cases decreased from 213 to 61, concomitant with a decrease in polyclonal infections (from 0.286 to 0.18), and expectedly variable Hexp. Strong signals of gene flow were present in the study areas and wide geographic distribution of highly diverse parasite populations were found. This study suggests that movement of malaria parasites by human reservoirs connects geographically distant malaria transmission areas in the Peruvian Amazon. The maintenance of high levels of parasite genetic diversity through human mobility is a critical barrier to malaria elimination in this region.
Giant spin-vorticity coupling excited by shear-horizontal surface acoustic waves
Creators: name: Huang, Mingxian
name: Hu, Wenbin
name: Zhang, Huaiwu
name: Bai, Feiming
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A non-magnetic layer can inject spin-polarized currents into an adjacent ferromagnetic layer via spin vorticity coupling (SVC), inducing spin wave resonance (SWR). In this work, we present the theoretical model of SWR generated by shear-horizontal surface acoustic wave (SH-SAW) via SVC, which contains distinct vorticities from well-studied Rayleigh SAW. Both Rayleigh- and SH-SAW delay lines have been designed and fabricated with a Ni81Fe19/Cu bilayer integrated on ST-cut quartz. Given the same wavelength, the measured power absorption of SH-SAW is four orders of magnitudes higher than that of the Rayleigh SAW. In addition, a high-order frequency dependence of the SWR is observed in the SH-SAW, indicating SVC can be strong enough to compare with magnetoelastic coupling.
Suppression of turbulence and subcritical fluctuations in differentially rotating gyrokinetic plasmas
Creators: name: Schekochihin, A. A.
name: Highcock, E. G.
name: Cowley, S. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Differential rotation is known to suppress linear instabilities in fusion plasmas. However, even in the absence of growing eigenmodes, subcritical fluctuations that grow transiently can lead to sustained turbulence. Here transient growth of electrostatic fluctuations driven by the parallel velocity gradient (PVG) and the ion temperature gradient (ITG) in the presence of a perpendicular ExB velocity shear is considered. The maximally simplified case of zero magnetic shear is treated in the framework of a local shearing box. There are no linearly growing eigenmodes, so all excitations are transient. The maximal amplification factor of initial perturbations and the corresponding wavenumbers are calculated as functions of q/ε(=safety factor/aspect ratio), temperature gradient and velocity shear. Analytical results are corroborated and supplemented by linear gyrokinetic numerical tests. For sufficiently low values of q/ε(<7 in our model), regimes with fully suppressed ion-scale turbulence are possible. For cases when turbulence is not suppressed, an elementary heuristic theory of subcritical PVG turbulence leading to a scaling of the associated ion heat flux with q, ε, velocity shear and temperature gradient is proposed; it is argued that the transport is much less stiff than in the ITG regime.
description: 36 pages in IOP latex style; 12 figures; submitted to PPCF
Against negative splitting: the case for alternative pacing strategies for elite marathon athletes in official events
Creators: name: Fernandes, Guilherme
name: Maldonado, Victor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Objectives: Negative splitting (i.e., finishing the race faster) is a tactic commonly employed by elite marathon athletes, even though research supporting the strategy is scarce. The presence of pacers allows the main runner to run behind a formation, preserving energy. Our aim is to show that, in the presence of pacers, the most efficient pacing strategy is positive splitting. Methods: We evaluated the performance of an elite marathon runner from an energetic standpoint, including drag values obtained through Computational Fluid Dynamics (CFD). In varying simulations for different pacing strategies, the energy for both the main runner and his pacer were conserved and the total race time was calculated. Results: In order to achieve minimum race time, the main runner must start the race faster and run behind the pacers, and when the pacers drop out, finish the race slower. Optimal race times are obtained when the protected phase is run 2.4 to 2.6% faster than the unprotected phase. Conclusion: Our results provide strong evidence that positive splitting is indeed the best pacing strategy when at least one pacer is present, causing significant time savings in official marathon events.
Measuring the Stokes parameters for light transmitted by a high-density rubidium vapour in large magnetic fields
Creators: name: Weller, Lee
name: Dalton, Toryn
name: Siddons, Paul
name: Adams, Charles S
name: Hughes, Ifan G
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Here we report on measurements of the absolute absorption and dispersion of light in a dense rubidium vapour on the D2 line in the weak-probe regime with an applied magnetic field. A model for the electric susceptibility of the vapour is presented which includes both dipole-dipole interactions and the Zeeman effect. The predicted susceptibility is comprehensively tested by comparison to experimental spectra for fields up to 800 G. The dispersive properties of the medium are tested by comparison between experimental measurements and theoretical prediction of the Stokes parameters as a function of the atom-light detuning.
Charmed Mesons Have No Discernable Color-Coulomb Attraction
Creators: name: Goldman, T.
name: Silbar, Richard R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Starting with a confining linear Lorentz scalar potential V_s and a Lorentz vector potential V_v which is also linear but has in addition a color-Coulomb attraction piece, -alpha_s/r, we solve the Dirac equation for the ground-state c- and u-quark wave functions. Then, convolving V_v with the u-quark density, we find that the Coulomb attraction mostly disappears, making an essentially linear barV_v for the c-quark. A similar convolution using the c-quark density also leads to an essentially linear tildeV_v for the u-quark. For bound cbar-c charmonia, where one must solve using a reduced mass for the c-quarks, we also find an essentially linear widehatV_v. Thus, the relativistic quark model describes how the charmed-meson mass spectrum avoids the need for a color-Coulomb attraction.
description: 9 pages, 5 PDF figures
Fremdbilder In Der Offenen Kinder- Und Jugendarbeit: Eine Fallstudie Anhand Des Beispiels Der Politischen Gemeinde Gommiswald
Creators: name: Gönitzer, Corina
name: Hunziker, Jeannine
Publisher: name: Zenodo
Year: 2016
Subjects: subject: gnd:4028863-8
subject: gnd:4055676-1
subject: gnd:4721392-9
subject: gnd:4053881-3

description: Die Autorinnen befassen sich in der vorliegenden Arbeit mit Fremdbildern in der Offenen Kinder- und Jugendarbeit in ländlichen Gebieten der Deutschschweiz anhand des Fallbeispiels der politischen Gemeinde Gommiswald. Gegenstand der Untersuchung und der Ausführungen sind Fremdbilder sowie deren Wirkung auf die professionelle Offene Kinder- und Jugendarbeit im soziokulturellen Verständnis. Das Autorinnenteam beschreibt im ersten Teil der Arbeit die theoretischen und fachlichen Grundlagen der Soziokulturellen Animation und der professionellen Offenen Kinder- und Jugendarbeit (OKJA). Anhand dieses theoretischen Teils wird eine umfassende Definition der OKJA erstellt und das Selbst- oder Berufsbild beziehungsweise Berufsverständnis der Autorinnen wird dargelegt. Die Zielsetzung ist, die verschiedenen Wahrnehmungen einander gegenüber zu stellen und daraus ein Fazit für die OKJA zu ziehen. Basierend auf den Fragestellungen resultieren Erkenntnisse, allfällige Stolpersteine und eine Handlungsempfehlung aus der Bearbeitung. Experteninterviews mit vier Schlüsselpersonen aus den verschiedenen Lebensbereichen Politik, Wirtschaft, Religion (Gemeinschaft) und Bildung dienen als Grundlage für diese Forschungsarbeit. Die Experteninterviews geben darüber Aufschluss, welche Fremdbilder in der Bevölkerung zur OKJA vorhanden sind. Diese werden anhand qualitativer Forschungsmethoden ausgewertet und in einen Kontext gesetzt. Die Ergebnisse zeigen, dass Fremdbilder zur OKJA vorhanden sind und diese werden in der vorliegenden Arbeit ersichtlich. Anhand der Resultate hat das Autorinnenteam eine Handlungsempfehlung erstellt, die als Instrument in der Praxis der OKJA in ländlichen Gebieten der Deutschschweiz Verwendung finden kann. Verfasst haben diese Arbeit Corina Gönitzer und Jeannine Hunziker, Studierende der Hochschule Luzern – Soziale Arbeit, aus dem Fachbereich der Soziokulturellen Animation.
description: + Code Diss LU: hslusa bask 2016 + Fussnote: Ausbildungsgang Soziokultur
Mycetophila strigatoides
Creators: name: El Mouden, Mohamed Amin
name: Chandler, Peter J.
name: Saidoun, Imane
name: Driauach, Ouafaa
name: Belqat, Boutaïna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Mycetophilidae
Mycetophila
Mycetophila strigatoides

description: Mycetophila strigatoides (Landrock, 1927)
Material examined.
Morocco – Middle Atlas Region • 2 ♂♂; Gouffre Izora; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24165 • 1 ♂; Grotte Bouslama; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24166.
North African distribution.
Tunisia (Chandler 1994); Morocco (Banamar et al. 2020).
description: Published as part of El Mouden, Mohamed Amin, Chandler, Peter J., Saidoun, Imane, Driauach, Ouafaa & Belqat, Boutaïna, 2025, A new species of Docosia Winnertz, 1864 and new records of fungus gnats (Diptera, Bolitophilidae, Keroplatidae and Mycetophilidae) from North Africa, pp. 349-379 in ZooKeys 1233 on pages 349-379, DOI: 10.3897/zookeys.1233.130502
Depletion of the RNA binding protein HNRNPD impairs homologous recombination by inhibiting DNA-end resection and inducing R-loop accumulation
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Antineoplastic Agents
Camptothecin
Checkpoint Kinase 1
Chromatin
DNA
DNA Breaks, Double-Stranded
DNA End-Joining Repair
DNA, Single-Stranded
Genome, Human
Genomic Instability
HeLa Cells
Heterogeneous-Nuclear Ribonucleoprotein D
Heterogeneous-Nuclear Ribonucleoprotein U
Histones
Humans
Nucleic Acid Conformation
Nucleic Acid Hybridization
Phosphorylation
Phthalazines
Piperazines
RNA Polymerase II
RNA, Small Interfering
Recombinational DNA Repair
Replication Protein A
Ribonuclease H

description: © The Author(s) 2019. DNA double strand break (DSB) repair through homologous recombination (HR) is crucial to maintain genome stability. DSB resection generates a single strand DNA intermediate, which is crucial for the HR process. We used a synthetic DNA structure, mimicking a resection intermediate, as a bait to identify proteins involved in this process. Among these, LC/MS analysis identified the RNA binding protein, HNRNPD. We found that HNRNPD binds chromatin, although this binding occurred independently of DNA damage. However, upon damage, HNRNPD re-localized to γH2Ax foci and its silencing impaired CHK1 S345 phosphorylation and the DNA end resection process. Indeed, HNRNPD silencing reduced: the ssDNA fraction upon camptothecin treatment; AsiSI-induced DSB resection; and RPA32 S4/8 phosphorylation. CRISPR/Cas9-mediated HNRNPD knockout impaired in vitro DNA resection and sensitized cells to camptothecin and olaparib treatment. We found that HNRNPD interacts with the heterogeneous nuclear ribonucleoprotein SAF-A previously associated with DNA damage repair. HNRNPD depletion resulted in an increased amount of RNA:DNA hybrids upon DNA damage. Both the expression of RNase H1 and RNA pol II inhibition recovered the ability to phosphorylate RPA32 S4/8 in HNRNPD knockout cells upon DNA damage, suggesting that RNA:DNA hybrid resolution likely rescues the defective DNA damage response of HNRNPD-depleted cells.
An estimator of first coalescent time reveals selection on young variants and large heterogeneity in rare allele ages among human populations
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Alleles
Biological Variation, Population
Datasets as Topic
Evolution, Molecular
Female
Gene Frequency
Genetic Heterogeneity
Genetics, Population
Genome, Human
Humans
Male
Models, Genetic
Selection, Genetic
Time Factors

description: © 2019 Platt et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Allele age has long been a focus of population genetic research, primarily because it can be an important clue to the fitness effects of an allele. By virtue of their effects on fitness, alleles under directional selection are expected to be younger than neutral alleles of the same frequency. We developed a new coalescent-based estimator of a close proxy for allele age, the time when a copy of an allele first shares common ancestry with other chromosomes in a sample not carrying that allele. The estimator performs well, including for the very rarest of alleles that occur just once in a sample, with a bias that is typically negative. The estimator is mostly insensitive to population demography and to factors that can arise in population genomic pipelines, including the statistical phasing of chromosomes. Applications to 1000 Genomes Data and UK10K genome data confirm predictions that singleton alleles that alter proteins are significantly younger than those that do not, with a greater difference in the larger UK10K dataset, as expected. The 1000 Genomes populations varied markedly in their distributions for singleton allele ages, suggesting that these distributions can be used to inform models of demographic history, including recent events that are only revealed by their impacts on the ages of very rare alleles.
Controlling auxeticity in curved-beam metamaterials via a deep generative model
Creators: name: Felsch, Gerrit
name: Ghavidelnia, Naeim
name: Schwarz, David
name: Slesarenko, Viacheslav
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Lattice-based mechanical metamaterials are known to exhibit quite a unique mechanical behavior owing to their rational internal architecture. This includes unusual properties such as a negative Poisson's ratio, which can be easily tuned in reentrant-hexagonal metamaterials by adjusting the angles between beams. However, changing the angles also affects the overall dimensions of the unit cell. We show that by replacing traditional straight beams with curved ones, it is possible to control Poisson's ratio of reentrant-hexagonal metamaterials without affecting their overall dimensions. While the mechanical properties of these structures can be predicted through finite element simulations or, in some cases, analytically, many applications require to identify architectures with specific target properties. To solve this inverse problem, we introduce a deep learning framework for generating metamaterials with desired properties. By supplying the generative model with a guide structure in addition to the target properties, we are not only able to generate a large number of alternative architectures with the same properties, but also to express preference for a specific shape. Deep learning predictions together with experimental measurements prove that this approach allows us to accurately generate unit cells fitting specific properties for curved-beam metamaterials.
Observations on Open and Closed String Scattering Amplitudes at High Energies
Creators: name: Caputa, Pawel
name: Hirano, Shinji
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study massless open and closed string scattering amplitudes in flat space at high energies. Similarly to the case of AdS space, we demonstrate that, under the T-duality map, the open string amplitudes are given by the exponential of minus minimal surface areas whose boundaries are cusped closed loops formed by lightlike momentum vectors. We show further that the closed string amplitudes are obtained by gluing two copies of minimal surfaces along their cusped lightlike boundaries. This can be thought of as a manifestation of the Kawai-Lewellen-Tye (KLT) relation at high energies. We also discuss the KLT relation in AdS/CFT and its possible connection to amplitudes in N=8 supergravity as well as the correlator/amplitude duality.
description: 17 pages, 5 figures; v2: references added
Bioactive cell-like hybrids from dendrimersomes with a human cell membrane and its components
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: mammalian cell
bacterial membrane
hybrid vesicles
coassembly
bacterial adhesin

description: © 2019 National Academy of Sciences. All Rights Reserved. Cell-like hybrids from natural and synthetic amphiphiles provide a platform to engineer functions of synthetic cells and protocells. Cell membranes and vesicles prepared from human cell membranes are relatively unstable in vitro and therefore are difficult to study. The thicknesses of biological membranes and vesicles self-assembled from amphiphilic Janus dendrimers, known as dendrimersomes, are comparable. This feature facilitated the coassembly of functional cell-like hybrid vesicles from giant dendrimersomes and bacterial membrane vesicles generated from the very stable bacterial Escherichia coli cell after enzymatic degradation of its outer membrane. Human cells are fragile and require only mild centrifugation to be dismantled and subsequently reconstituted into vesicles. Here we report the coassembly of human membrane vesicles with dendrimersomes. The resulting giant hybrid vesicles containing human cell membranes, their components, and Janus dendrimers are stable for at least 1 y. To demonstrate the utility of cell-like hybrid vesicles, hybrids from dendrimersomes and bacterial membrane vesicles containing YadA, a bacterial adhesin protein, were prepared. The latter cell-like hybrids were recognized by human cells, allowing for adhesion and entry of the hybrid bacterial vesicles into human cells in vitro.
Argumente Für Eine Neue Datenbankarchitektur - Präsentationsfolien
Creators: name: Goldschmidt, Oliver Christian
Publisher: name: Zenodo
Year: 2016
Subjects: H-Store
Hauptspeicherdatenbank
Datenbanksystem
Datenbankmanagementsystem
OLTP-Datenbank

description: In diesen Präsentationsfolien werden die Thesen von Michael Stonebraker et al. für die Erschaffung einer neuen Datenbankarchitektur zusammengefasst. In diesem Zusammenhang wird das hauptspeicherbasierte OLTP-Datenbanksystem H-Store vorgestellt. Auch der Datenbanktechnische One-Size-Fits-All-Ansatz wird untersucht und Szenarien für den Einsatz spezialisierter Datenbanksysteme skizziert. Auch die Unterscheidung von OLTP und OLAP wird dargestellt und hinterfragt.

Zu den Folien exstiert auch eine ausfürlichere Ausarbeitung in Form eines Aufsatzes.

Die Ausarbeitung entstand als studentische Arbeit im Rahmen des Seminars "Hauptspeicher- und spaltenbasierte Datenbanken" an der FernUniversität in Hagen im Sommersemester 2016.
Two-dimensional charge distributions of the $Δ$ baryon: Interpolation between the nonrelativistic and ultrarelativistic limit
Creators: name: Hong, Ki-Hoon
name: Kim, June-Young
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate how the charge distributions of both the unpolarized and transversely polarized $Δ$ baryon change as the longitudinal momentum~($P_{z}$) of the $Δ$ baryon increases from $P_{z}=0$ to $P_{z}=\infty$ in a Wigner phase-space perspective. When the $Δ$ baryon is longitudinally polarized, its two-dimensional charge distribution is kept to be spherically symmetric with $P_{z}$ varied, whereas when the $Δ$ baryon is transversely polarized along the $x$-axis, the quadrupole contribution emerges at the rest frame ($P_{z}=0$). When $P_{z}$ grows, the electric dipole and octupole moments are induced. The induced dipole moment dominates over other higher multipole contributions and governs the deformation of the charge distribution of the $Δ$ baryon.
description: 22 pages, 12 figures
Über Das Unterstützungsbedürfnis Angehöriger Männlicher Strafgefangener: Eine Bedarfsabklärung Aus Sicht Der Sozialarbeit
Creators: name: Helfenstein, Martin
Publisher: name: Zenodo
Year: 2016
Subjects: subject: gnd:4055676-1
subject: 4057-7880
subject: gnd:4142414-1

description: Angehörige von Strafgefangenen sind von den Folgen des Freiheitsentzuges der/des Straffälliggewordenen oft unverschuldet mitbetroffen und dadurch zusätzlichen Herausforderungen ausgesetzt. Im Ausland sowie der Westschweiz sind Angehörige mit ihren Bedürfnissen als Zielgruppe erkannt und mit entsprechenden Angeboten darauf reagiert worden. Diese Arbeit stellt einige aktuelle Projekte vor und zeigt auf, weshalb es Sinn macht, im Bereich der Angehörigenarbeit tätig zu sein. Der Autor zeigt in dieser Arbeit auf, inwiefern die Soziale Arbeit im Bereich der Resozialisierung und Reintegration bereits aktiv und aufgrund ihrer Berufsethik, Methodik und Handlungs-maximen für die Angehörigenarbeit prädestiniert ist. Ziel der in der vorliegenden Forschungsarbeit ist das Belegen oder Widerlegen eines Unterstützungsbedarfs unter Angehörigen erwachsener strafgefangener Personen in der Deutschschweiz sowie in welchen Bereichen allenfalls ein solcher und in welchem Ausmass besteht. Aus den Ergebnissen und den daraus gewonnen Erkenntnissen werden Schlussfolgerungen für die Profession Soziale Arbeit gezogen.
description: + Code Diss LU: hslusa basa 2016 + Fussnote: Ausbildungsgang Sozialarbeit
GTRACE-RS: Efficient Graph Sequence Mining using Reverse Search
Creators: name: Inokuchi, Akihiro
name: Ikuta, Hiroaki
name: Washio, Takashi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: The mining of frequent subgraphs from labeled graph data has been studied extensively. Furthermore, much attention has recently been paid to frequent pattern mining from graph sequences. A method, called GTRACE, has been proposed to mine frequent patterns from graph sequences under the assumption that changes in graphs are gradual. Although GTRACE mines the frequent patterns efficiently, it still needs substantial computation time to mine the patterns from graph sequences containing large graphs and long sequences. In this paper, we propose a new version of GTRACE that enables efficient mining of frequent patterns based on the principle of a reverse search. The underlying concept of the reverse search is a general scheme for designing efficient algorithms for hard enumeration problems. Our performance study shows that the proposed method is efficient and scalable for mining both long and large graph sequence patterns and is several orders of magnitude faster than the original GTRACE.
Vergleich der Empfehlungen zur Erhebung sozio-demographischer Merkmale in epidemiologischen und sozialwissenschaftlichen Umfragen
Creators: name: Palm, Lennart
name: Schneider, Silke L.
name: Müller, Sarah
Publisher: name: Zenodo
Year: 2023
Subjects: socio-demographics
comparability
interoperability
health sciences
social sciences
standardisation
survey research

description: Grundlegende soziodemographische Merkmale werden von allen personenbezogenen Umfragen in der Epidemiologie und den Sozialwissenschaften erfasst. Neben den „Demographischen Standards“ (aktuelle Version: Hoffmeyer-Zlotnik et al. 2016) liegen jedoch weitere Empfehlungen für standardisierte Fragebogenitems vor. In diesem Beitrag, der ein Ergebnis eines einjährigen Kurzprojekts von KonsortSWD in enger Kooperation mit NFDI4Health darstellt, werden die Empfehlungen der „Demographischen Standards“ (ebd.), der NAKO Gesundheitsstudie (2022), MethodCov (Arbeitsgruppe Soziodemographie MethodCov 2021) und der Standardfragenkatalog des Projekts Best_FDM (Rat Für Sozial- und Wirtschaftsdaten 2023) für von Schneider et al. (2022) betrachtete soziodemographische Merkmale miteinander verglichen. Jeweils werden Fragetyp, Fragetext bzw. Frageformulierung, Instruktionen, Antwortkategorien und, wenn relevant, die Filterführung miteinander verglichen. Darauf aufbauend wird die Kohärenz der Empfehlungen untereinander bewertet. Insgesamt zeigen sich für die betrachteten Items der gewählten Empfehlungen aus Gesundheits- und Sozialwissenschaften sehr viele Überschneidungen, aber auch kleinere und manchmal größere Unterschiede, welche sich jedoch eher durch das Bestreben nach möglichst „ökonomischen“ Erhebungsinstrumenten als unterschiedliche Erkenntnisinteressen in Gesundheits- und Sozialwissenschaften erklären lassen.
description: KonsortSWD wird im Rahmen der NFDI durch die Deutsche Forschungsgemeinschaft (DFG) gefördert – Projektnummer: 442494171.
The Unimodal Distribution Of Blue Straggler Stars in M75 (NGC 6864)
Creators: name: Ramos, R. Contreras
name: Ferraro, F. R.
name: Dalessandro, E.
name: Lanzoni, B.
name: Rood, R. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have used a combination of multiband high-resolution and wide-field ground-based observations to image the Galactic globular cluster M75 (NGC 6864). The extensive photometric sample covers the entire cluster extension, from the very central regions out to the tidal radius, allowing us to determine the center of gravity and to construct the most extended star density profile ever published for this cluster. We also present the first detailed star counts in the very inner regions. The star density profile is well re-produced by a standard King model with core radius r_c ~ 5.4" and intermediate-high concentration c ~ 1.75. The present paper presents a detailed study of the BSS population and its radial distribution. A total number of 62 bright BSSs (with m_F255W < 21, corresponding to m_F555W < 20) has been identified, and they have been found to be highly segregated in the cluster core. No significant upturn in the BSS frequency has been observed in the outskirts of M75, in contrast to several other clusters studied with the same technique. This observational fact is quite similar to what has been found in M79 (NGC 1904) by Lanzoni et al. (2007a). Indeed the BSS radial distributions in the two clusters is qualitatively very similar, even if in M75 the relative BSS frequency seems to decrease significantly faster than in M79: indeed it decreases by a factor of 5 (from 3.4 to 0.7) within 1 r_c. Such evidence indicate that the vast majority of the cluster heavy stars (binaries) have already sunk to the core.
description: ApJ accepted, 10 pages, 11 figures, 2 tables
Sensitivity test of a blue-detuned dipole trap designed for parity non-conservation measurements in Fr
Creators: name: Sheng, Dong
name: Zhang, Jiehang
name: Orozco, Luis A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A dynamic blue-detuned optical dipole trap with stable $^{87}Rb$ atoms produces a differential ac Stark shift of 18 Hz in the ground state hyperfine transition, and it preserves the ground state hyperfine superpositions for a long coherence time of 180 ms. The trapped atoms undergoing microwave Rabi oscillations are sensitive to a small signal, artificially generated with a second microwave source, phase locked to the first allow- ing a simple and effective method for determining signal-to-noise ratio limits through interference techniques. This provides an excellent means of calibrating sensitivity in experiments such as our ongoing Fr parity non-conservation measurement.
description: 12 pages, 4 figures
Wir Ziehen Aufs Land: Über Motivationen, Wünsche, Befürchtungen Von Städterinnen Und Städtern, Die Aufs Land Ziehen Sowie Ihre Integrationsabsichten Am Neuen Wohnort Am Beispiel Der Gemeinde Hüttikon
Creators: name: Huber, Daniela
name: Weik, Claudia
Publisher: name: Zenodo
Year: 2016
Subjects: subject: gnd:4056730-8
subject: gnd:4299677-6
subject: gnd:4225796-7
subject: gnd:4053881-3

description: Der gesellschaftliche Wandel prägt auch die Entwicklung von Städten und Agglomerationsgemeinden. Im Laufe der Zeit wurden mancherorts Infrastrukturen abgebaut, die einen wichtigen Bestandteil des dörflichen Zusammenlebens darstellen. Diesen Gemeinden fehlen heute infrastrukturelle Begegnungsmöglichkeiten. Die Autorinnen Daniela Huber und Claudia Weik nehmen die Gemeinde Hüttikon als Beispiel, um die Konsequenzen solcher Entwicklungen aufzuzeigen. Mit den neuzugezogenen Städterinnen und Städtern der Siedlung „Am Brunnen“ führten sie Interviews und fanden heraus, was die Befragten zu einem Umzug aufs Land bewog, welches ihre Vorstellungen bezüglich des neuen Orts sind und welche Befürchtungen bezüglich der Lebensumstellung (Stadt/Land) damit einhergehen. Den Fokus setzen die Autorinnen dabei auf die Integrationsabsichten der Neuzugezogenen in der dörflichen Nachbarschaft sowie die Unterstützung dazu seitens der Gemeinde. Wie wollen und können sich die Interviewten integrieren und welche Möglichkeiten in Anbetracht der rasanten Entwicklung bieten sich ihnen? Anhand der gesammelten Aussagen konnten die Autorinnen die Werte und Normen der befragten Personen einem spezifischen Milieu zuordnen. Dadurch werden die geäusserten Wünsche, Erwartungen und Befürchtungen sowie die Integrationsabsichten verständlich und erklärbar. Mittels Theorien zum Sozialkapital werden die Ergebnisse in einen soziokulturellen Kontext gestellt. Mit Blick auf die Veränderungen in Hüttikon, mit dem erworbenen theoretischen Wissen und den Überlegungen dazu ist es den Autorinnen möglich, einen Handlungsbedarf für die Soziokulturelle Animation zu definieren und diesen zu begründen.
description: + Code Diss LU: hslusa bask 2016 be + Fussnote: Ausbildungsgang Soziokultur
Analog de Sitter universe in quantum Hall systems with an expanding edge
Creators: name: Nambu, Yasusada
name: Hotta, Masahiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Expanding edges in quantum Hall systems can become a simulator of quantum 1+1 dimensional expanding universes. In these systems, edge exciations are represented as a chiral scalar field in curved spacetimes. We investigate Hawking radiation and entanglement behavior predicted by this model assuming that the expansion law of the edge region corresponds to a de Sitter universe. As observable quantities for the quantum field, local spatial modes associated with detection regions are introduced using window functions for the field, and their correlations are evaluated. We found impact of Hawking radiation caused by the edge expansion on auto-correlation functions of the local modes, and confirmed that entanglement death due to Hawking radiation occurs. This behavior of entanglement is related to ``quantum to classical transition" in cosmic inflations.
description: 18 pages. Accepted version in Phys. Rev. D
Toward a Model for Activation of Orai Channel
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Biological Sciences
Molecular Biology
Structural Biology

description: © 2019 The Author(s) Store-operated calcium release-activated calcium (CRAC) channels mediate a variety of cellular signaling functions. The CRAC channel pore-forming protein, Orai1, is a hexamer arranged with 3-fold symmetry. Despite its importance in moving Ca2+ ions into cells, a detailed mechanistic understanding of Orai1 activation is lacking. Herein, a working model is proposed for the putative open state of Orai from Drosophila melanogaster (dOrai), which involves a “twist-to-open” gating mechanism. The proposed model is supported by energetic, structural, and experimental evidence. Fluorescent imaging demonstrates that each subunit on the intracellular side of the pore is inherently strongly cross-linked, which is important for coupling to STIM1, the pore activator, and graded activation of the Orai1 channel. The proposed model thus paves the way for understanding key aspects of calcium signaling at a molecular level. Biological Sciences; Molecular Biology; Structural Biology
Microbial Degradation and Transformation of Organic Pollutants: An Eco-Friendly Strategy for Waste Mitigation
Creators: name: A. E. Mbachu
name: E. I. Chukwura
name: N. A. Mbachu
Publisher: name: Zenodo
Year: 2021
Subjects: Hydrocarbons
pesticides
biotransformation
degradation
organic pollutants

description: Environmental pollution by organic waste especially hydrocarbons, pesticides, herbicides and other toxic wastes is a global problem. Despite the economic boom which petroleum industries have created for many countries, it has at the same time led to environmental and socio economic challenges. Release of hydrocarbons into the environment whether accidental or due to human activities is the main cause of water and soil pollution. Pesticide application on agricultural soil is now a common practice. Some of these pesticides persist in the soil to form pollutants which may occasionally lead to surface and ground water contamination. It is an important subject to study the role of microorganisms in organic pollutant biodegradation as it is a safe alternative to physicochemical techniques. This paper summarized the general principles of organic pollutant degradation by microorganisms. Emphasis was laid on the biochemistry of hydrocarbon oxidation viz; terminal and sub terminal oxidation of n-alkanes as well as anaerobic degradation of alkanes. The paper also highlighted the pathways for the biodegradation of organic chemicals such as pesticides as well as factors affecting organic pollutant biodegradation. Beside these factors affecting biodegradation, efforts at improving the biodegradative capabilities of microorganisms through biostimulation, bioaugmentation and the use of genetically engineered microorganisms (GEM) were also discussed.
Thermoelastic Properties of Ringwoodite [Fe_x,Mg_(1-x)]_2SiO_4: Its Relationship to the 520 km Seismic Discontinuity
Creators: name: Valdez, M. Núñez
name: Wu, Z.
name: Yu, Y. G.
name: Revenaugh, J.
name: Wentzcovitch, R. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We combine density functional theory (DFT) within the local density approximation (LDA), the quasiharmonic approximation (QHA), and a model vibrational density of states (VDoS) to calculate elastic moduli and sound velocities of gamma-[Fe_x,Mg_(1-x)]_2SiO_4 (ringwoodite), the most abundant mineral of the lower Earth's transition zone (TZ). Comparison with experimental values at room-temperature and high pressure or ambient-pressure and high temperature shows good agreement with our first-principles findings. Then, we investigate the contrasts associated with the beta-to-gamma-[Fe_x,Mg_(1-x)]_2SiO_4 transformation at pressures and temperatures relevant to the TZ. This information offers clearly defined reference values to advance the understanding of the nature of the 520 km seismic discontinuity.
description: 29 pages, 6 figures, 2 tables. Under Review
Emergence and percolation of rigid domains during the colloidal glass transition
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: cond-mat.soft
cond-mat.dis-nn
cond-mat.mtrl-sci
cond-mat.stat-mech

description: © 2019 American Physical Society. Using video microscopy, we measure local spatial constraints in disordered binary colloidal samples, ranging from dilute fluids to jammed glasses, and probe their spatial and temporal correlations to local dynamics during the glass transition. We observe the emergence of significant correlations between constraints and local dynamics within the Lindemann criterion, which coincides with the onset of glassy dynamics in supercooled liquids. Rigid domains in fluids are identified based on local constraints and demonstrate a percolation transition near the glass transition, accompanied by the emergence of dynamical heterogeneities. Our results show that spatial constraint instead of the geometry of amorphous structures is the key that connects the complex spatial-temporal correlations in disordered materials.
MicroRNA-34a and MicroRNA-181a Mediate Visfatin-Induced Apoptosis and Oxidative Stress via NF-κB Pathway in Human Osteoarthritic Chondrocytes
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: NF-κB
apoptosis
chondrocytes
miR-181a
miR-34a
microRNA
osteoarthritis
oxidative stress
visfatin
Aged
Apoptosis
Cells, Cultured
Chondrocytes
Cytokines
Female
Humans
Male
MicroRNAs
NF-kappa B
Nicotinamide Phosphoribosyltransferase
Osteoarthritis, Hip
Oxidative Stress
Reactive Oxygen Species

description: Current evidence suggests a complex interaction between adipokines and microRNA (miRNA) in osteoarthritis (OA) pathogenesis. The present study explored the role of miR-34a and miR-181a in regulating apoptosis and oxidative stress induced by visfatin in human OA chondrocytes. Chondrocytes were transfected with miR-34a and miR-181a inhibitors and stimulated with visfatin for 24 h, in the presence of nuclear factor (NF)-κB inhibitor (BAY-11-7082, 2 h pre-incubation). Apoptosis and reactive oxygen species (ROS) production were detected by cytometry, miRNA, antioxidant enzymes, nuclear factor erythroid (NRF)2 and B-cell lymphoma (BCL)2 expressions by quantitative real time polymerase chain reaction (real time PCR) and western blot. P50 NF-κB subunit was measured by immunofluorescence. Visfatin significantly induced apoptosis and superoxide anion production, increased miR-34a, miR-181a, superoxide dismutase (SOD)-2, catalase (CAT), NRF2 and decreased BCL2 gene and protein expression in OA chondrocytes. All the visfatin-caused effects were suppressed by using miR-34a and miR-181a inhibitors. Pre-incubation with BAY-11-7082 counteracted visfatin-induced expression of miRNA, BCL2, SOD-2, CAT and NRF2. Inhibition of miR-34a and miR-181a significantly reduced the activation of p50 NF-κB. Visfatin confirms its ability to induce apoptosis and oxidative stress in human OA chondrocytes; these effects appeared mediated by miR-34a and miR-181a via NF-κB pathway. We highlight the relevance of visfatin as potential therapeutic target for OA treatment.
Low field magnetocaloric effect and heat capacity of A-site ordered NdBaMn2O6 manganite
Creators: name: Aliev, A. M.
name: Gamzatov, A. G.
name: Kalitka, V. S.
name: Kaul, A. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetocaloric effect (MCE) in the A-site ordered manganite NdBaMn2O6 is studied. The MCE in this compound has an anomalous behavior. In low magnetic fields, the abrupt transitions between direct and inverse magnetocaloric effect are observed. In a relatively strong magnetic field H=11 kOe the direct and inverse effects are observed only at cooling, while the heating mode reveals only an inverse MCE. The value of the MCE (-ΔS=0.7 J/kg K and ΔS= 1.02 J/kg K for ΔH=11 kOe) does not reach high values, but the proximity of the effects occurring at room temperatures expects the use of both effects in the magnetic cooling technology.
description: 10 pages, 6 figures
Determining The Stellar Initial Mass By Means Of The 17O/18O Ratio On The Agb
Creators: name: De Nutte, Rutger
name: Decin, Leen
name: Olofsson, Hans
name: de Koter, Alex
name: Karakas, Amanda
name: Lombaert, Robin
name: Milam, Stefanie
name: Ramstedt, Sofia
name: Stancliffe, Richard
name: Homan, Ward
name: Van de Sande, Marie
Publisher: name: Zenodo
Year: 2016
Subjects: AGB stars
oxygen isotopes
initial mass

description: This poster presents newly obtained circumstellar 12C17O and 12C18O line observations, from which the line intensity are then related directly to the 17O/18O surface abundance ratio for a sample of nine AGB stars covering the three spectral types (). These ratios are evaluated in relation to a fundamental stellar evolution parameters: the stellar initial mass. The 17O/18O ratio is shown to function as an effective method of determining the initial stellar mass. Through comparison with predictions by stellar evolution models, accurate initial mass estimates are calculated for all nine sources.
description: Poster #219
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