cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Ist die gläserne Decke noch aktuell? Untersuchung wahrgenommener Aspekte der Unternehmenskultur und der geschlechtsspezifischen Unterschiede in Karrierechancen
Creators: name: Weissenrieder, Caprice Oona
name: Graml, Regine
name: Hagen, Tobias
name: Ziegler, Yvonne
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: Frauen
subject: Führungspositionen
subject: gläserne Decke
subject: Karriere
subject: Unternehmenskultur
subject: ddc:330

description: Das Thema der geschlechtsspezifischen Unterschiede in den Karrierechancen ist aktuell und wird nach wie vor kontrovers diskutiert. Verschiedene Studien belegen, dass im europäischen Vergleich in Deutschland das Potenzial, insbesondere bei gut ausgebildeten Frauen, nicht signifikant ausgeschöpft wird. Die vorgestellte Studie gibt Aufschluss darüber, wie Frauen und Männer unternehmenskulturelle Aspekte – Beziehungen und Netzwerke, MitarbeiterInnenförderung, Stellenbesetzung und Rekrutierung sowie Präsenz am Arbeitsplatz – in Bezug auf ihre Karriereperspektiven wahrnehmen. Die Studie basiert auf einer Online-Befragung von Personen in Führungspositionen oder mit Führungspotenzial eines deutschen Großunternehmens.
A resolution of the K(2)-local sphere at the prime 3
Creators: name: Goerss, P.
name: Henn, H. -W.
name: Mahowald, M.
name: Rezk, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55Q45; 55P60

description: We develop a framework for displaying the stable homotopy theory of the sphere, at least after localization at the second Morava K-theory K(2). At the prime 3, we write the spectrum L_{K(2)S^0 as the inverse limit of a tower of fibrations with four layers. The successive fibers are of the form E_2^hF where F is a finite subgroup of the Morava stabilizer group and E_2 is the second Morava or Lubin-Tate homology theory. We give explicit calculation of the homotopy groups of these fibers. The case n=2 at p=3 represents the edge of our current knowledge: n=1 is classical and at n=2, the prime 3 is the largest prime where the Morava stabilizer group has a p-torsion subgroup, so that the homotopy theory is not entirely algebraic.
description: 46 pages, published version
Plight and Countermeasures of Petty Credit Loan in Rural Financial Institutions in the Context of Rural Revitalization Strategy
Creators: name: ZOU Xiaofang
name: ZOU Xiaofang
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Rural revitalization strategy; Rural financial institutions; Petty credit loan; Financial support

description: The implementation of China’s rural revitalization strategy will surely release a huge financial demand in rural areas. How to use the petty credit loan in rural financial institutions to develop rural economy is an effective way to implement the rural revitalization strategy. This paper first analyzes the significance of petty credit loan in rural financial institutions for rural revitalization strategy, then introduces the remarkable contribution of petty credit loan in China’s rural financial institutions to actively solving the problems of farmers about difficult financing and expensive financing and elaborates on the main problems of petty credit loan business in rural financial institutions that still exist in the process of supporting rural revitalization, and finally gives several suggestions on solving the problems about the financing of farmers and the development of petty credit loan business in rural financial institutions.
Punzi-loss: A non-differentiable metric approximation for sensitivity optimisation in the search for new particles
Creators: name: Feichtinger, P.
name: Haigh, H.
name: Inguglia, G.
name: Kahn, J.
name: Abudinén, F.
name: Bertemes, M.
name: Bilokin, S.
name: Campajola, M.
name: Casarosa, G.
name: Cunliffe, S.
name: Corona, L.
name: De Nuccio, M.
name: De Pietro, G.
name: Dey, S.
name: Eliachevitch, M.
name: Ferber, T.
name: Gemmler, J.
name: Goldenzweig, P.
name: Gottmann, A.
name: Graziani, E.
name: Hohmann, M.
name: Humair, T.
name: Keck, T.
name: Komarov, I.
name: Krohn, J. -F.
name: Kuhr, T.
name: Lacaprara, S.
name: Lieret, K.
name: Maiti, R.
name: Martini, A.
name: Meier, F.
name: Metzner, F.
name: Milesi, M.
name: Park, S. -H.
name: Prim, M.
name: Pulvermacher, C.
name: Ritter, M.
name: Sato, Y.
name: Schwanda, C.
name: Sutcliffe, W.
name: Tamponi, U.
name: Tenchini, F.
name: Urquijo, P.
name: Zani, L.
name: Žlebčík, R.
name: Zupanc, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the novel implementation of a non-differentiable metric approximation and a corresponding loss-scheduling aimed at the search for new particles of unknown mass in high energy physics experiments. We call the loss-scheduling, based on the minimisation of a figure-of-merit related function typical of particle physics, a Punzi-loss function, and the neural network that utilises this loss function a Punzi-net. We show that the Punzi-net outperforms standard multivariate analysis techniques and generalises well to mass hypotheses for which it was not trained. This is achieved by training a single classifier that provides a coherent and optimal classification of all signal hypotheses over the whole search space. Our result constitutes a complementary approach to fully differentiable analyses in particle physics. We implemented this work using PyTorch and provide users full access to a public repository containing all the codes and a training example.
description: submitted to EPJC
TESS Experiments: Factors Affecting Public Opinion on Transgender Medical Care Refusal
Creators: name: Doan, Long
name: Grace, Matthew
Publisher: name: Roper Center for Public Opinion Research
Year: 2023

description: Time-sharing Experiments for the Social Sciences (TESS) offers researchers the opportunity to capture the internal validity of experiments. Investigators submit proposals, and TESS fields successful proposals for free on a representative sample of adults in the United States. This experiment was conducted to examine how common justifications for the denial of healthcare and the race and gender identity of the person being denied care intersect to shape public opinion concerning the acceptability of treatment refusal. Respondents were randomly assigned to be presented with one of 16 vignettes in which a transgender patient was refused care from a healthcare provider. Vignettes varied patient race/ethnicity as signaled by name (Washington (Black) vs. Meyer (White) vs. Gonzalez (Latinx) vs. Nguyen (Asian)), patient gender identity (transgender woman vs. transgender male), and provider rationale for refusing care (religious reasons vs. inadequate training). A total of 5,028 respondents, including 836 healthcare professionals, participated. Respondents were asked to indicate their feelings of overall acceptability of the provider’s refusal of services, redemptive acceptability if the provider had offered alternative treatment paths, and believability of the doctor’s stated rationale. This allowed for comparison of attitudes across conditions.
Rip Current Segmentation: A Novel Benchmark and YOLOv8 Baseline Results
Creators: name: Dumitriu, Andrei
name: Tatui, Florin
name: Miron, Florin
name: Ionescu, Radu Tudor
name: Timofte, Radu
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.4.0; I.4.9

description: Rip currents are the leading cause of fatal accidents and injuries on many beaches worldwide, emphasizing the importance of automatically detecting these hazardous surface water currents. In this paper, we address a novel task: rip current instance segmentation. We introduce a comprehensive dataset containing $2,466$ images with newly created polygonal annotations for instance segmentation, used for training and validation. Additionally, we present a novel dataset comprising $17$ drone videos (comprising about $24K$ frames) captured at $30 FPS$, annotated with both polygons for instance segmentation and bounding boxes for object detection, employed for testing purposes. We train various versions of YOLOv8 for instance segmentation on static images and assess their performance on the test dataset (videos). The best results were achieved by the YOLOv8-nano model (runnable on a portable device), with an mAP50 of $88.94%$ on the validation dataset and $81.21%$ macro average on the test dataset. The results provide a baseline for future research in rip current segmentation. Our work contributes to the existing literature by introducing a detailed, annotated dataset, and training a deep learning model for instance segmentation of rip currents. The code, training details and the annotated dataset are made publicly available at https://github.com/Irikos/rip_currents.
description: Accepted at CVPR 2023 NTIRE Workshop
Glueball Decay in Holographic QCD
Creators: name: Hashimoto, Koji
name: Tan, Chung-I
name: Terashima, Seiji
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using holographic QCD based on D4-branes and D8-anti-D8-branes, we have computed couplings of glueballs to light mesons. We describe glueball decay by explicitly calculating its decay widths and branching ratios. Interestingly, while glueballs remain less well understood both theoretically and experimentally, our results are found to be consistent with the experimental data for the scalar glueball candidate f_0(1500). More generally, holographic QCD predicts that decay of any glueball to 4 $π_0$ is surpressed, and that mixing of the lightest glueball with $q\bar{q}$ mesons is small.
description: 28 pages, 5 figures, JHEP style, references added
Coupling Relationship between Integrated Land Consolidation and Farmland Scale Management in Villages over Coal Resources: A Case Study of Zezhou County in Shanxi Province
Creators: name: WU Yaying
name: WU Yaying
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Villages over coal resources, Integrated land consolidation, Farmland scale management, Coupling model, Zezhou Couty in Shanxi Province

description: Through field sampling survey of 18 villages over coal resources in 3 townships and towns in Zezhou County, Jincheng City, Shanxi Province, this paper analyzed the favorable conditions and obstacles for villages over coal resources to carry out farmland scale management. On this basis, combined with the integrated land consolidation measures in villages over coal resources and their effectiveness, and using the principles of system dynamics, it studied the coupling relationship between integrated land consolidation in villages over coal resources and farmland scale management and built a coupling model. It found that the integrated land consolidation system of villages over coal resources has a coupling relationship with the external and internal conditions of the farmland scale management system at the regional and project scales. The two systems interact with and influence each other through the "bridge" of "agricultural modernization condition”. The study indicates that at the same time of integrated land consolidation of villages over coal resources caring about the improvement of internal conditions, it is also necessary to improve the external conditions of farmland scale management through regional scale measures such as laws and policies, to support the implementation of land consolidation projects, and realize farmland scale management.
Leveraging gravitational-wave memory to distinguish neutron star--black hole binaries from black hole binaries
Creators: name: Tiwari, Shubhanshu
name: Ebersold, Michael
name: Hamilton, Eleanor Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the observation of gravitational waves (GWs) from a compact binary coalescence system where the mass of one of the companions is $\leq 5~M_{\odot}$ the nature of the object is ambiguous until the measurements of tidal effects give evidence for the presence of a neutron star (NS) or a low mass black hole (BH). The relevance of tidal effects in a neutron star--black hole (NSBH) binary system depends crucially upon the mass and the spin of the companion BH. These effects become important predominantly when the binary system is of comparable mass and/or has large aligned spins. Depending upon the masses and spins the NS can even get tidally disrupted before the innermost stable circular orbit (ISCO) is reached. The gravitational-wave signatures of various tidal effects are encoded in the phasing of the signal and in the case of tidal disruption an abrupt cutoff of the signal amplitude occurs. In this work we show that tidal effects can also be captured by the nonlinear memory of the GW signal. Although small in amplitude, nonlinear memory is present at low frequency in contrast to the oscillatory GW signal. We introduce nonlinear memory in the NSBH and binary black hole (BBH) waveform models and show how the addition of memory aids in distinguishing NSBH systems from BBH systems for a larger part of the parameter space. We discuss the recently detected events of interest by LIGO-Virgo and provide the future prospects for the third generation detectors where nonlinear memory can play a crucial role in inferring the nature of the coalescence as BBH or NSBH from its GW signal alone.
description: Accepted in PRD
title: Der vergeschlechtlichte Staat. Zum Verhältnis von Freiheit, Geschlecht und Staat bei Jean-Jacques Rousseau
Creators: name: Nagy, Nicola
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: Aufklärung
subject: Geschlechterdifferenz
subject: Geschlechtertheorie
subject: Philosophie
subject: Rousseau
subject: Staatstheorie
subject: ddc:140

description: Im Beitrag werden die strategischen und systematischen Funktionen sowie die Bedeutung der von Jean-Jacques Rousseau beschriebenen Geschlechtscharaktere und der darauf bauenden Ordnung des Geschlechterverhältnisses im Rahmen der konkreten Ausgestaltung und Umsetzung seines Modells des Staates sichtbar gemacht. Bemerkenswert ist die Tatsache, dass die Möglichkeitsbedingungen (Gemeinwohlorientierung) von Rousseaus Republik, mit deren Hilfe die Herstellung und der Erhalt der bürgerlichen Freiheit gelingen sollen, konstitutiv auf einer Geschlechterordnung beruhen, die Frauen aus ebendieser bürgerlichen Freiheit ausschließen muss, ohne sie oder ihre Aufgaben dabei auf theoretischer Ebene grundsätzlich abzuwerten oder zu entmenschlichen. Rousseau kann in diesem Sinne als Vordenker moderner, bürgerlicher Geschlechtertheorien gewertet werden.
Scrapter confusus Mack & Kuhlmann 2023
Creators: name: Mack, Anne
name: Kuhlmann, Michael
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Colletidae
Scrapter
Scrapter confusus

description: Scrapter confusus subgroup
In both sexes the S. confusus subgroup is defined by the following character combination: mesosoma and terga covered by a mix of coarse and very fine punctation, facial fovea very broad, about four times as long as wide.
The only species of this subgroup (Table 1), S. confusus sp. nov., is quite different from all other species of the S. nitidus group but clearly does not belong to the apparently closely related taxa around S. aureiferus and S. calx that form a species group of their own. Species of the latter group are distinctly smaller with finer punctation.
description: Published as part of Mack, Anne & Kuhlmann, Michael, 2023, Revision of the nitidus species group of the bee genus Scrapter Lepeletier & Serville, 1828 (Hymenoptera: Apoidea), pp. 1-119 in European Journal of Taxonomy 912 on page 107, DOI: 10.5852/ejt.2023.912.2373, http://zenodo.org/record/10419994
Fracture and Fatigue of Thin Crystalline SrTiO$_3$ Membranes
Creators: name: Harbola, Varun
name: Xu, Ruijuan
name: Crossley, Samuel
name: Singh, Prastuti
name: Hwang, Harold Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The increasing availability of a variety of two-dimensional materials has generated enormous growth in the field of nanoengineering and nanomechanics. Recent developments in thin film synthesis have enabled the fabrication of freestanding functional oxide membranes that can be readily incorporated in nanomechanical devices. While many oxides are extremely brittle in bulk, recent studies have shown that, in thin membrane form, they can be much more robust to fracture as compared to their bulk counterparts. Here, we investigate the ultimate tensile strength of SrTiO$_3$ membranes by probing freestanding SrTiO$_3$ drumheads using an atomic force microscope. We demonstrate that SrTiO$_3$ membranes can withstand an elastic deformation with an average strain of ~6% in the sub-20 nm thickness regime, which is more than an order of magnitude beyond the bulk limit. We also show that these membranes are highly resilient upon a high cycle fatigue test, surviving up to a billion cycles of force modulation at 85% of their fracture strain, demonstrating their high potential for use in nanomechanical applications.
Abelian Chern-Simons Gauge Theory on The Lattice
Creators: name: Zhang, Bingnan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Abelian Chern-Simons gauge theory is constructed on the three-dimensional spacetime lattice. This proposal introduces both lattice and dual lattice, and the gauge field on the dual lattice is expressed in terms of the gauge field on the original lattice. This treatment circumvents the issue of forward/backward difference, which is the common problem that many previous proposals have, and also avoids the duplication problem, which prevents people from introducing the dual lattice. The form of the lattice action is very simple, and is symmetric with respect to the three spacetime dimensions. These features make it straightforward to calculate the expectation values of Wilson loops, and the results agree with the topological field theory in continuous spacetime. Generalizations to multiple types of lattices are also discussed.
LABOCA observations of nearby, active galaxies
Creators: name: Weiss, A.
name: Kovacs, A.
name: Guesten, R.
name: Menten, K. M.
name: Schuller, F.
name: Siringo, G.
name: Kreysa, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present large scale 870 micron maps of the nearby starburst galaxies NGC253, NGC4945 and the nearest giant elliptical radio galaxy Centaurus A (NGC 5128) obtained with the newly commissioned Large Apex Bolometer Camera (LABOCA) operated at the APEX telescope. Our continuum images reveal for the first time the distribution of cold dust at a angular resolution of 20" across the entire optical disks of NGC253 and NGC4945 out to a radial distance of 10' (7.5 kpc). In NGC5128 our LABOCA image also shows, for the first time at submillimeter wavelengths, the synchrotron emission associated with the radio jet and the inner radio lobes. From an analysis of the 870 micron emission in conjunction with ISO-LWS, IRAS and long wavelengths radio data we find temperatures for the cold dust in the disks of all three galaxies of 17-20 K, comparable to the dust temperatures in the disk of the Milky Way. The total gas mass in the three galaxies is determined to be 2.1, 4.2 and 2.8 x 10^9 solar masses for NGC253, NGC4945 and NGC5128, respectively. A detailed comparison between the gas masses derived from the dust continuum and the integrated CO(1-0) intensity in NGC253 suggests that changes of the CO luminosity to molecular mass conversion factor are mainly driven by a metallicity gradient and only to a lesser degree by variations of the CO excitation. An analysis of the synchrotron spectrum in the northern radio lobe of NGC5128 shows that the synchrotron emission from radio to the ultraviolet wavelengths is well described by a broken power law and that the break frequency is a function of the distance from the radio core as expected for aging electrons. We derive an outflow speed of ~0.5c at a distance of 2.6kpc from the center, consistent with the speed derived in the vicinity of the nucleus.
description: 12 pages, 11 figures. Accepted for publication in A&A
184 | settembre 2021 97888948401 Edgar Wind. A Bibliography of the Works and the Secondary Literature (Updated, September 2021)
Creators: name: Naval Garcia, Ada
Publisher: name: La Rivista di Engramma
Year: 2021
Subjects: Edgar Wind
Bibliography

description: A complete bibliography of the writings of Edgar Wind and of the curatorships, publications, and translations edited by himself. In addition, a review of the critical literature dedicated to him, as a scholar and intellectual (updated in September 2021).
Current Research Situations, Problems and Recommendations of Land Use Structure and Layout Optimization
Creators: name: DONG Yuting
name: YANG Zisheng
name: DONG Yuting
name: YANG Zisheng
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Land use structure optimization, Layout optimization, Current research situations, Problems and recommendations, Literature comparative analysis

description: Land is the foundation for human survival and development, and all human social and economic activities are inseparable from the land as a space carrier. With the continuous development of China's social economy, China is facing new social development needs such as urban-rural integration and rural revitalization. At the same time, China starts to attach great importance to ecology and has proposed the concept that lucid waters and lush mountains are invaluable assets. In this situation, the rational use of land resources, the optimization of land use structure and layout are also facing new challenges and problems, and more comprehensive consideration is required to make relevant optimization. Using the method of literature comparative analysis, from the conceptual connotation, basic theory, method model, and specific practice of land use structure and layout optimization, this paper analyzed and summarized the current research situations and problems, and finally came up with recommendations for the future research.
Magnetism in Gallium doped CeFe_2: The martensitic scenario
Creators: name: Haldar, Arabinda
name: Suresh, K. G.
name: Nigam, A. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Ce(Fe_{1-x}Ga_x)_2 compounds with x = 0, 0.01, 0.025 and 0.05 have been investigated to unravel the effect of Ga on the magnetic state of CeFe_2. For the first time, we find that the dynamic antiferromagnetic phase present in CeFe_2 gets stabilized with Ga substitution. The hysteresis loops show that while the compounds with x = 0 and 0.01 show normal behavior, the other two show multiple magnetization steps across the antiferromagnetic-ferromagnetic transition region. The virgin curve is found to lie outside the envelope curve in these two compounds, similar to the observations made in Ru and Re substituted CeFe_2 compounds. Temperature, sweep rate and time dependences of the magnetization show that the compounds with x >=0.025 possess glassy behavior at low temperatures. Various results obtained reveal that these two compounds belong to the martensite family.
description: 23 pages, 12 Figures
The Collapse and Three-Dimensional Explosion of Three-Dimensional, vis à vis One-Dimensional, Massive-star Supernova Progenitor Models
Creators: name: Vartanyan, David
name: Coleman, Matthew S. B.
name: Burrows, Adam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The explosion outcome and diagnostics of core-collapse supernovae depend sensitively on the nature of the stellar progenitor, but most studies to date have focused exclusively on one-dimensional, spherically-symmetric massive star progenitors. We present some of the first core-collapse supernovae simulations of three-dimensional massive star supernovae progenitors, a 12.5- and a 15-M$_{\odot}$ model, evolved in three-dimensions from collapse to bounce through explosion with the radiation-hydrodynamic code F{\sc{ornax}}. We compare the results using those starting from three-dimensional progenitors to three-dimensional simulations of spherically-symmetric, one-dimensional progenitors of the same mass. We find that the models evolved in three dimensions during the final stages of massive star evolution are more prone to explosion. The turbulence arising in these multi-dimensional initial models serve as seed turbulence that promotes shock revival. Detection of gravitational waves and neutrinos signals could reveal signatures of pre-bounce turbulence.
description: accepted to MNRAS
The Unusual Spectrum of Comet 96P/Machholz
Creators: name: Langland-Shula, Laura E.
name: Smith, Graeme H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report spectra from 3000-5900 A for comet 96P/Machholz, obtained on 2007 Apr 27 UT with the 3-m Shane telescope at Lick Observatory. The spectra are extremely carbon poor, and show a prominent NH_2 series, but no CN emission. NH, NH_2, and C_2 gas production rates are (8.36 +/- 2.18)x10^25, (29.88 +/- 3.66)x10^25, and (4.52 +/- 0.61)x10^23 molecules sec^-1, respectively, as determined from Haser model fits to the data. Upper limits to the gas production rates for CN and C_3 are 7.5x10^22 and 2.0x10^23, respectively. Though 96P is depleted in C_2 and C_3 relative to NH, it is even more depleted in CN than other so-called "carbon-chain depleted" comets.
description: 14 pages, 4 tables, 2 figures, accepted for publication in ApJL
Josephson current in diffusive multilayer superconductor/ferromagnet/superconductor junctions
Creators: name: Sperstad, Iver B.
name: Linder, Jacob
name: Sudbø, Asle
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We calculate the Josephson current in a diffusive superconductor/ferromagnet/superconductor junction, where the ferromagnetic region contains multiple layers (or domains). In particular, we study a configuration where there are two layers with an arbitrary relative in-plane magnetization orientation, and also include non-ideal interfaces and arbitrary spin-flip scattering. We study the 0-$π$ oscillations of the critical current for varying junction width $d$, and find that the $π$ state vanishes entirely when the magnetic misorientation angle of the two layers exceeds a critical angle $ϕ_c$. While $ϕ_c \to π/2$ in the limit of high temperatures, we find that $ϕ_c$ becomes smaller than $π/2$ at low temperatures compared to $T_c$. 0-$π$ oscillations are also found when varying the temperature or the misorientation angle for fixed values of $d$, and we present phase diagrams that show qualitatively the conditions for the appearance of such oscillations. We also point out how one may obtain significant enhancement of the critical current in such a system by switching the magnetization for selected values of the junction width $d$, and comment on the necessary conditions for establishing a long range triplet Josephson effect.
description: 12 pages, 11 figures. Accepted for publication in Phys. Rev. B. High-quality figures will be available in the published version
Goodyera R. Br.
Creators: name: Pignal, Marc
name: Laudereau, Christian
name: Laudereau, Pierre-Louis
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Goodyera

description: Genus Goodyera R.Br.
Hortus kewensis, or, A Catalogue of the Plants Cultivated in the Royal Botanic Garden at Kew, ed. 2 [W.T. Aiton] 5: 197 (Brown 1813).
ESPÈCE TYPE. — Goodyera repens (L.) R.Br.
REMARQUES
Goodyera R.Br. s.l. est un genre composé de près de 100 espèces. Sa répartition comporte à la fois des régions tempérées (Amérique du Nord et Eurasie), l’Asie tropicale et l’Océanie, ainsi que l’Afrique de l’Est et Madagascar. Il est absent du reste de l’Afrique et de l’Amérique du Sud. Lors du dernier traitement des Orchidaceae pour la Nouvelle-Calédonie, Hallé (1977) reconnaissait quatre espèces et une variété. Le Tableau 1 indique les différentes positions taxonomiques de ces taxons mentionnées par Pace (2020) et Ormerod (1996). Les travaux moléculaires Hu et al. (2016) et Chen et al. (2019) ont mis en évidence la polyphylie du genre et les seconds ont publié des combinaisons. Pace (2020) a proposé une circonscription taxonomique de Goodyera s.l.
Si de nombreuses décisions taxonomiques et nomenclaturales vont dans le sens d’une meilleure compréhension des Goodyerinae, la place des espèces du genre Goodyera dans une phylogénie n’est pas encore bien établie. Le Tableau 1 montre les principaux éléments qui séparent Platylepis A.Rich. et Goodyera R.Br. dans le travail de Pace (2020) et les caractères observés chez G. scripta (Rchb.f.) Schltr. Ces caractères comportent des états alternatifs: limbes tesselés ou non, entrenoeuds corpulents (ou rarement allongés), feuilles en position basale ou ascendantes, fleurs pseudocampanulées à pseudotubulaires, sépales parallèles aux fleurs à récurvés (rarement étalés), labelle concave à sacciforme, rarement scrotiforme. Ils ne sont pas complètement discriminants. Aussi préférons-nous conserver Goodyera scripta (Rchb.f.) Schltr. avec l’espèce nouvelle G. suprinii M.Pignal, sp. nov. au sein de ce genre, les autres taxons sont affectés aux genres suivants: Salacistis Rchb.f., Anoectochilus Blume et Eucosia Blume.
description: Published as part of Pignal, Marc, Laudereau, Christian & Laudereau, Pierre-Louis, 2023, Liste annotée des Goodyerinae Klotzsch (Orchidaceae) de Nouvelle-Calédonie avec la description de deux nouvelles espèces, pp. 307-325 in Adansonia (3) (3) 45 (19) on page 310, DOI: 10.5252/adansonia2023v45a19, http://zenodo.org/record/8200238
An experimental study of the seismic forces on submerged structures
Creators: name: Pegg, Neil Gordon
Publisher: name: University of British Columbia
Year: 2010

description: In this investigation, the dynamic characteristics of a submerged cylinder were determined by performing vibration tests on a model underwater. These characteristics are expressed in terms of the added mass and damping values of the cylinder. Such quantities are required in the design of offshore structures in seismic zones. Sinusoidal tests were used to determine these values as a function of excitation frequency. The frequency range was varied from 0.5 to 6.0 Hertz, which is the primary range of interest of most earthquakes. The testing was carried out in the Seismic Simulation Laboratory of the Department of Civil Engineering at the University of British Columbia. The experimental values of added mass and damping versus frequency were compared with the values produced using potential flow theory. The experimental and theoretical results were found to agree very closely. The theoretical added mass and damping values were then used to develop the frequency transfer function for the base shear developed in the cylinder as a result of an input acceleration record. To check the validity of this theoretically derived transfer function, the base shear was measured for a given random acceleration input and compared to the results obtained using the theoretical transfer function. The transfer function derived from Fourier transforms of the random test records, as well as the transfer function developed through sinusoidal tests were also compared to the theoretical transfer function; the agreement was good. This study is restricted to structures which fall into the large body or wave diffraction regime. This means that fluid separation does not occur and Laplace's equation for potential flow can be used in solving the problem with the assumption of inviscid fluid and irrotational flow. The theoretical solution used in this work contemplates complete free surface boundary conditions, which account for the production of surface waves in the physical problem. These boundary conditions are usually ignored in other studies of this problem, as they increase the difficulty of the solution. Part of the work for this thesis involved the design and construction of testing apparatus and procedures to be employed in the studies of seismic effects on offshore structures. This aspect of the research is described in some detail. The study reported in this thesis confirms that an existing potential theory wave diffraction program can be used to accurately determine the added mass and added damping values for application in the aseismic design of offshore structures. These parameters can then be applied to evaluate the transfer function for such systems.
Copropagating edge states produced by the interaction between electrons and chiral phonons in two-dimensional materials
Creators: name: Dueñas, Joaquín Medina
name: Calvo, Hernán L.
name: Torres, Luis E. F. Foa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Unlike the chirality of electrons, the intrinsic chirality of phonons has only surfaced in recent years. Here we report on the effects of the interaction between electrons and chiral phonons in two-dimensional materials by using a non-perturbative solution. We show that chiral phonons introduce inelastic \textit{Umklapp} processes resulting in copropagating edge states which coexist with a continuum. Transport simulations further reveal the robustness of the edge states. Our results hint on the possibility of having a metal embedded with hybrid electron-phonon states of matter.
description: 8 pages, 6 figures
title: Die „gute Geburt“ – Ergebnis richtiger Entscheidungen? Zur Kritik des gegenwärtigen Selbstbestimmungsdiskurses vor dem Hintergrund der Ökonomisierung des Geburtshilfesystems
Creators: name: Jung, Tina
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: Care
subject: Feminismus
subject: Geburtshilfe
subject: Ökonomisierung
subject: Schwangerschaft
subject: Selbstbestimmung
subject: Wissen
subject: ddc:300

description: Selbstbestimmung, informed choice und informed consent sind zu Schlüsselbegriffen in der Geburtshilfe avanciert. Dabei fällt die Popularität des gegenwärtigen Selbstbestimmungsdiskurses in eine Zeit, in der die Geburtshilfe im Zeichen der neoliberalen Ökonomisierung einem tiefgreifenden Wandel unterliegt, der sich u. a. in einer deutlichen Verschlechterung der strukturellen Rahmenbedingungen der Versorgungsqualität von schwangeren und gebärenden Frauen und in einer Abwertung von somatisch-beziehungsorientierten Momenten von Geburtsbegleitung zeigt. Der Beitrag untersucht, welche Bedeutungsverschiebungen das Verständnis von Selbstbestimmung durchlaufen und welche Effekte dies aktuell für schwangere und gebärende Frauen in der Geburtshilfe hat. Gezeigt wird, dass und wie der derzeitige Selbstbestimmungsdiskurs in der Geburtshilfe dazu beiträgt, die Verantwortung für das Gelingen einer ‚guten‘ Geburt auf die Frauen zu verschieben und gleichzeitig den Verlust jener somatisch-beziehungsorientierten Bedingungen, auf die es für eine gute Geburtshilfe ankommt, zu legitimieren. Im Beitrag wird dafür plädiert, Selbstbestimmung nicht länger als Frage der Information, der Vorbereitung und der Entscheidung zu verstehen, sondern als Frage der Befähigung zu Urteilskraft, die Momente der Angewiesenheit, Achtsamkeit, Fürsorge, Schmerz, Angst, aber auch Kraft, Lust und Freude einschließen kann.
Energy spectra of secondaries in proton-proton interactions
Creators: name: Koldobskiy, S.
name: Kachelrieß, M.
name: Lskavyan, A.
name: Neronov, A.
name: Ostapchenko, S.
name: Semikoz, D. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare the predictions of AAfrag for the spectra of secondary photons, neutrinos, electrons, and positrons produced in proton-proton collisions to those of the parameterisations of Kamae et al., Kelner et al., and Kafexhiu et al. We find that the differences in the normalisation of the photon energy spectra reach 20$-$50% at intermediate values of the transferred energy fraction $x$, growing up to a factor of two for $x\rightarrow\,$1, while the differences in the neutrino spectra are even larger. We argue that LHCf results on the forward production of photons favor the use of the QGSJET-II-04m model on which AAfrag is based. The differences in the normalisation have important implications in the context of multi-messenger astronomy, in particular, for the prediction of neutrino fluxes based on gamma-ray flux measurements, or regarding the inference of the cosmic ray spectrum, based on gamma-ray data. We note also that the positron-electron ratio from hadronic interactions increases with energy towards the cutoff, an effect which is missed using the average electron-positron spectrum from Kelner et al. Finally, we describe the publicly available python package aafragpy, which provides the secondary spectra of photons, neutrinos, electrons, and positrons. This package complements the AAfrag results for protons with energies above 4 GeV with previous analytical parameterizations of particle spectra for lower energy protons.
description: 8 pages, 10 figures
Study on the Present Situation and Strategies of Rural Waste Classification Treatment in Northeast China
Creators: name: LIU Ting
name: ZHANG Mengmeng
name: PENG Xia
name: HAN Qiuxiang
name: DONG  Shengzhong
name: LIU Ting
name: ZHANG Mengmeng
name: PENG Xia
name: HAN Qiuxiang
name: DONG  Shengzhong
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Agricultural ecology, Northeast rural areas, Domestic waste, Classification treatment

description: The classification treatment of rural domestic waste is not only an important measure to realize the standardized development in rural areas, but also the action support to the concept of "ecological and suitable residence" put forward by the 19th CPC National Congress. This paper summarizes the traditional treatment methods of rural domestic waste in Northeast China, the present situation of rural waste classification treatment in Northeast China and the advantages of waste classification in rural areas of Northeast China. The specific measures to improve the current situation of rural waste classification treatment in Northeast China are put forward in terms of capital policy, classification methods and management means, in order to provide theoretical reference for the treatment of rural domestic waste in Northeast China.
Mobilization of selected trace metals in the aquatic environment (sediment to water column and benthic invertebrates)
Creators: name: Bindra, Kuldip Singh
Publisher: name: University of British Columbia
Year: 2010

description: Laboratory experiments were conducted to determine the processes affecting mobilization of trace metals (Cu, Fe, Mn, Pb and Zn) across the sediment-water and sediment-benthic invertebrate interfaces. The release of trace metals from two contaminated well-characterized sediments was studied under quiescent and agitated conditions. Trace metal release was studied under different conditions of salinity (0-29.5 ‰), oxygen (air saturated and nitrogen gas purged) and pH (5, 7, 10). Four groups of benthic invertebrates, namely the opossum shrimp, an amphipod, chironomids, and oligochaetes were exposed to the two sediments for periods up to six weeks. Organisms were analyzed for Cu, Fe, Mn, Pb and Zn to determine whether accumulation occurred. Rapid agitation confirmed many of the observations made under long term (30 day) quiescent experiments. Under oxic (air saturated) freshwater conditions concentrations of the more toxic metals (Cu, Pb and Zn) were less than 10 μg/l. More Zn (27 μg/l) was released under saline conditions. Iron and Mn were released in high concentrations under anoxic (nitrogen gas purged) conditions. Extreme pH (5, 10) resulted in very high concentrations of all metals. Release at pH 10 was attributed to dissolution of humic substances which can bind the metals. Variation in release could not always be related to the sediment trace metal geochemistry. The sediment organic content and particle size were important in determining trace metal release. Microcosm studies indicated that total sediment trace metals are not necessarily indicative of levels in benthic invertebrates. The geochemistry of the trace metals as well as the physico-chemical character of the sediment influenced bioavailability. Contaminated sediments were most toxic to the opossum shrimp. Chironomids showed the greatest uptake of all trace metals. Oligochaetes appeared to have the best capability to mobilize and excrete trace metals from their tissue.
Next-to-Leading Order perturbative QCD corrections to baryon correlators in matter
Creators: name: Groote, S.
name: Körner, J. G.
name: Pivovarov, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the next-to-leading order perturbative QCD corrections to the correlators of nucleon interpolating currents in relativistic nuclear matter. The main new result is the calculation of the O(alpha_s) perturbative corrections to the coefficient functions of the vector quark condensate in matter. This condensate appears in matter due to the violation of Lorentz invariance. The NLO perturbative QCD corrections turn out to be large which implies that the NLO corrections must be included in a sum rule analysis of the properties of both bound nucleons and relativistic nuclear matter.
description: 19 pages in LaTeX, including 5 Postscript figures
The Lorentz group and the Kronecker product of matrices
Creators: name: Larsson, Jonas
name: Larsson, Karl
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The group $SL(2,\mathbb{C})$ of all complex $2\times 2$ matrices with determinant one is closely related to the group $\boldsymbol{\mathcal{L}}_{+}^\uparrow$ of real $4\times 4$ matrices representing the restricted Lorentz transformations. This relation, sometimes called the spinor map, is of fundamental importance in relativistic quantum mechanics and has applications also in general relativity. In this paper we show how the spinor map may be expressed in terms of pure matrix algebra by including the Kronecker product between matrices in the formalism. The so-obtained formula for the spinor map may be manipulated by matrix algebra and used in the study of Lorentz transformations.
title: Queering Harry, slashing Potter: Between latent meanings and resistant readings
Creators: name: Cuntz-Leng, Vera
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: fantasy genre
subject: Harry Potter
subject: Literatur
subject: queer reading
subject: reader response theory
subject: slash fandom
subject: ddc:800

description: As a global phenomenon, Harry Potter has attracted most diverse audiences and provoked many contradictory responses and debates. While many critics have highlighted the enforcement of heteronormativity in the storyworld, fan responses – and especially slash fan fiction – provides us with an abundance of contradictory queer responses and non-heteronormative re-readings and rewritings of Harry Potter. By constantly confronting and intertwining the academic strategy of queer reading as introduced by Kosofsky Sedgwick with the responses of slash fans, I want to discuss the tensions between latent meanings and resistant readings that embrace the Harry Potter universe. In reference to Iser’s concept of the Leerstelle, the various omissions, indeterminacies, and contradictions in Harry Potter that provide a fertile ground for the interpretation of subtextual contents and for transgressive re-writings alike will be explored and discussed within the larger framework of film history and the fantasy genre.
Knot in Cen A: Stochastic Magnetic Field for Diffusive Synchrotron Radiation?
Creators: name: Mao, Jirong
name: Wang, Jiancheng
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The emission of relativistic electrons moving in the random and small-scale magnetic field is presented by diffusive synchrotron radiation (DSR). In this Letter, we revisit the perturbative treatment of DSR. We propose that random and small-scale magnetic field might be generated by the turbulence. As an example, multi-band radiation of the knot in Cen A comes from the electrons with energy $γ_e\sim 10^3-10^4$ in the magnetic field of $10^{-3}G$. The multi-band spectrum of DSR is well determined by the feature of stochastic magnetic field. These results put strong constraint to the models of particle acceleration.
description: accepted by ApJL, comments are welcome
Importance of Comprehensive Ecological Restoration of Mountains, Rivers, Forests, Farmland, Lakes and Grass: A Case Study of the Shichuan River
Creators: name: YE Shenglan
name: YE Shenglan
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Mountains, rivers, forests, farmland, lakes and grass; Ecological restoration; Shichuan River

description: With China's economic development and population growth, China's ecological environment continues to deteriorate. The comprehensive ecosystem restoration of the Shichuan River aims to build an ecosystem containing "mountains, rivers, forests, farmland, lakes and grass" by determining scientific and reasonable thickness of foreign soil, pollution restoration, ecological reconstruction, safeguard measures, etc. It brings new vitality to local ecological environment remodeling and economic development.
INVESTIGATING THE ROLE OF BIG DATA AND PREDICTIVE ANALYTICS IN ENHANCING DECISION-MAKING AND COMPETITIVE ADVANTAGE: A CASE STUDY APPROACH
Creators: name: Mbonigaba Celestin*, S. Sujatha**, A. Dinesh Kumar*** & M. Vasuki****
Publisher: name: Zenodo
Year: 2024

description: This study explores the transformative role of data analytics, specifically focusing on big data and predictive analytics, in enhancing business operations. The objective was to assess the impact of data-driven strategies on decision-making efficiency and customer insights across industries from 2019 to 2024. A case study approach was employed, collecting data through surveys, interviews, and secondary analysis, using statistical models such as regression analysis and neural networks. Results revealed that companies adopting predictive analytics reported a 20-25% increase in customer satisfaction and a 15% improvement in operational efficiency. However, only 40% of businesses have successfully integrated data analytics into their core strategies. The study concludes that while data analytics offers significant competitive advantages, there are challenges in adoption due to infrastructure limitations and alignment issues.