cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Constraining cosmological extra dimensions with gravitational wave standard sirens: from theory to current and future multi-messenger observations
Creators: name: Corman, Maxence
name: Ghosh, Abhirup
name: Escamilla-Rivera, Celia
name: Hendry, Martin A.
name: Marsat, Sylvain
name: Tamanini, Nicola
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The propagation of gravitational waves (GWs) at cosmological distances offers a new way to test the gravitational interaction at the largest scales. Many modified theories of gravity, usually introduced to explain the observed acceleration of the universe, can be probed in an alternative and complementary manner with respect to standard electromagnetic (EM) observations. In this paper we consider a homogeneous and isotropic cosmology with extra spatial dimensions at large scales, which represents a simple phenomenological prototype for extra-dimensional modified gravity cosmological models. By assuming that gravity propagates through the higher-dimensional spacetime, while photons are constrained to the usual four dimensions of general relativity, we derive from first principles the relation between the luminosity distance measured by GW detectors and the one inferred by EM observations. We then use this relation to constrain the number of cosmological extra dimensions with the binary neutron star event GW170817 and the binary black hole merger GW190521. We further provide forecasts for the Laser Interferometer Space Antenna (LISA) by simulating multi-messenger observations of massive black hole binary (MBHB) mergers. This paper extends and updates previous analyses which crucially neglected an additional redshift dependency in the GW-EM luminosity distance relation which affects results obtained from multi-messenger GW events at high redshift, in particular constraints expected from LISA MBHBs.
description: 20 pages, 3 figures
Political Conspiratorial Beliefs are Likely Over-Estimated and Transitory
Creators: name: Smith, E. Keith
name: Mayer, Adam
name: Bognar, Julia
Publisher: name: ETH Zurich
Year: 2022

description: Prominent conspiracy beliefs, such as QAnon or 2020 Presidential Election beliefs, constitute a unique form of conspiracy theories that are often explicitly partisan, "politically instrumental conspiracy theories" (PICTs). PICTs can spread rapidly, quickly becoming consensus beliefs among partisan in-groups. But PICTs are not necessarily deeply held, rather primarily serving immediate instrumental partisan needs. We use novel survey list experiments to estimate the prevalence of QAnon and 2020 Presidential Election conspiracy theories in the United States. We find that standard survey techniques likely overestimate the prevalence of PICTs by a factor of $\sim$2. Over-reporting of PICTs is driven by right-wing media consumption (QAnon), and partisanship (2020 Presidential Election). Further, we find that PICT attitudes are heterogeniously related to engagement in political and pro-social behaviors. While the prevalence of PICTs is commonly over-estimated and the beliefs may be transitory, they can serve an instrumental role in the contemporary American electorate.
description: OSF Preprints
Charged $B$ Mesogenesis
Creators: name: Elahi, Fatemeh
name: Elor, Gilly
name: McGehee, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We leverage the CP violation in charged $B$ meson decays to generate the observed baryon asymmetry and dark matter at $\mathcal{O}(10 \text{ MeV})$ temperatures. We realize this in two scenarios: $B_c^+$ Mesogenesis and $B^+$ Mesogenesis. In the first, CP violating $B_c^\pm$ decays to $B^\pm$ mesons are followed by decays to dark and Standard Model baryons. In the second, CP violating $B^\pm$ decays to lighter charged mesons are accompanied by the latter's decays to dark and Standard Model leptons, which then scatter into the baryon asymmetry. $B_c^+$ Mesogenesis is actively being probed at Belle and LHCb, while $B^+$ Mesogenesis can be tested at colliders and sterile neutrino searches.
description: 11+7 pages, 6 figures; v2: minor revisions (no change to results)
Domino Effects in the Earth System - The role of wanted social tipping points
Creators: name: Smith, E. Keith
name: Eder, Christina
name: Donges, Jonathan F.
name: Heitzig, Jobst
name: Katsanidou, Alexia
name: Wiedermann, Marc
name: Winkelmann, Ricarda
Publisher: name: ETH Zurich
Year: 2022
Subjects: Social tipping
Sea-level rise
Risk perception
Behavioral intentions
Climate policy support

description: Social tipping processes have been identified as potential mechanisms for triggering necessary socio-technical transformations to avoid or mitigate disastrous climate futures. But, the coupling of social and climate systems remains comparatively under-defined. Here, we explore how (anticipated) changes to climate systems can instigate necessary positive transformations within social systems --- the wanted social tipping points.

Exemplarily adopting novel survey data from the United States, we investigate how sea-level rise (SLR) risk perceptions shape climate change relevant behavioral intentions and policies. We find that SLR risk perceptions are strongly positively related to a diverse set of behaviors and support for policy measures under analysis in this study. Furthermore, we find that SLR perceptions are one of the strongest drivers toward climate change behavioral intentions, comparatively stronger than many other common individual-level determinants (e.g., political attitudes or different forms of trust). Our findings emphasize the potential role of SLR perceptions as instigators of social tipping dynamics. Heightened risk perceptions could be influential in transcending the temporal barriers presented by the necessity for contemporary socio-technical transformations to mitigate future climate impacts --- serving as a normatively desirable trigger of positive (wanted) social tipping dynamics.
description: OSF Preprints
Could closing the knowledge gap help in reducing global environmental impacts of local consumption?
Creators: name: Presberger, David
name: Quoß, Franziska
name: Rudolph, Lukas
name: Bernauer, Thomas
Publisher: name: ETH Zurich
Year: 2022
Subjects: Sustainable consumption
Environmental footprint
Policy
Public opinion
Survey experiment
International trade

description: Vastly increased international trade over the past few decades has resulted in an ever larger geographical spread in the environmental impacts of local consumption. Particularly in the case of high-income countries, a large share of their total environmental footprint of local consumption now materializes in places far beyond the respective national border. On the presumption that democratic policy-makers should, and often do, act in line with prevailing public opinion we examine whether currently weak policies addressing consumption-based environmental impacts abroad may reflect a knowledge gap amongst citizens, and how closing this knowledge gap would affect policy preferences concerning the greening of international supply chains. We do so based on an experiment, embedded in a large representative survey (N=8’000) in Switzerland, a high-income country with a very large extraterritorial environmental footprint. The main finding is that there is a major knowledge gap amongst the mass public in this area, and that this gap can be closed. However, closing the knowledge gap does not lead to a significant change in policy preferences in favor of reducing the global environmental footprint of local consumption. This points to major policy challenges in trying to mitigate problems of environmental impact shifting in the global economy.
description: OSF Preprints
The impact of neighbourhood size on the accuracy of cellular automata-based urban modelling
Creators: name: Liu, Yan
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: Cellular automata are discrete dynamic models in which behaviour is specified in terms of local relations. This technique has recently been advantageously applied to modelling of the urban development process. However, the behaviour of the model is affected by spatial scale, including cell size and neighbourhood extent. Therefore, it is important to examine the impacts of various neighbourhood scales on the model’s behaviour and outcome. In this paper we configured a cellular automata model of urban growth in Sydney, Australia, using three different neighbourhood scales: a small neighbourhood of 1.5 cells radius, a moderate neighbourhood of 2.5 cells radius and a large neighbourhood of 3.5 cells radius, all with a fixed cell size of 250 metres. The moderate neighbourhood scale of 2.5 cells radius was found to best reflect those local mechanisms that have the most direct impact on urban development in Sydney. Hence this paper provides a useful reference in the search for a neighbourhood size that is suitable for cellular automata-based modelling of the processes of urban development.
Web-based GIS for mapping voting patterns at the 2004 Australian federal election
Creators: name: Shyy, Tung-Kai
name: Stimson, Robert
name: Chhetri, Prem
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: This paper describes a Web-based geographical information system (GIS) for mapping voting patterns, at the 2004 Australian federal election, at the polling booth level. The locations of polling booths are geocoded and linked with national digital datasets, including the 2001 census. The Web-based GIS can generate maps displaying patterns of voting for political parties across polling booths with overlays of data showing the demographic and socio-economic characteristics of populations within the surrounding polling booth catchments. A classification functionality consisting of equal interval, quantile, median-based natural breaks and location quotient may be used in order to generate different map displays. The Web-based GIS has been developed as an information dissemination and analysis tool to not only benchmark voting outcomes but also to visualise relationships between voting patterns and local demographic and socio-economic data.
Beyond islands: A free probabilistic approach
Creators: name: Wang, Jinzhao
Publisher: name: ETH Zurich
Year: 2022
Subjects: High Energy Physics - Theory (hep-th)
Mathematical Physics (math-ph)
Probability (math.PR)
Quantum Physics (quant-ph)
FOS: Physical sciences
FOS: Mathematics

description: We give a free probabilistic proposal to compute the fine-grained radiation entropy for an arbitrary bulk radiation state, in the context of the Penington-Shenker-Stanford-Yang (PSSY) model where the gravitational path integral can be implemented with full control. We observe that the replica trick gravitational path integral is combinatorially matching the free multiplicative convolution between the spectra of the gravitational sector and the matter sector respectively. The convolution formula computes the radiation entropy accurately even in cases when the island formula fails to apply. It also helps to justify this gravitational replica trick as a soluble Hausdorff moment problem. We then work out how the free convolution formula can be evaluated using free harmonic analysis, which also gives a new free probabilistic treatment of resolving the separable sample covariance matrix spectrum. The free convolution formula suggests that the quantum information encoded in competing quantum extremal surfaces can be modelled as free random variables in a finite von Neumann algebra. Using the close tie between free probability and random matrix theory, we show that the PSSY model can be described as a random matrix model that is essentially a generalization of Page's model. It is then manifest that the island formula is only applicable when the convolution factorizes in regimes characterized by the one-shot entropies. We further show that the convolution formula can be reorganized to a generalized entropy formula in terms of the relative entropy.
description: arXiv
Die Bündelung familienbezogener Leistungen bei einem Parafiskus. Eine Zusammenfassung bisheriger Überlegungen und eine Einordnung in die aktuelle Debatte
Creators: name: Spieß, C. Katharina
Publisher: name: Journal of Family Research
Year: 2008

description: In Germany, support for families includes diverse types of financial and material aid. These different programs are not aligned and coordinated, but rather stand alone alongside each other and are far from being transparent. This article argues that this situation could be remedied by grouping the various family-related support measures within a single family support agency as a parafiscal institution. Here we summarize the basic advantages and disadvantages of parafiscal institutions and evaluate them in the context of family-related support measures. Then we examine the aspect of self-administration, which has taken a prominent role in the debate on parafiscal institutions. The paper concludes by outlining further parameters for the design, financing, and range of services that could be offered by a family parafiscus. However, a detailed discussion of the services offered by a family parafiscus would require systematic evaluation of the overall system. In the medium term, there is substantial evidence that efforts should begin to integrate the family-related support measures provided by the social insurance system with other support measures provided by the federal government in a single family support agency. Zusammenfassung Familienbezogene Leistungen umfassen in Deutschland eine Vielzahl von Sach- und Geldleistungen. Diese Leistungen sind nicht aufeinander abgestimmt, stehen häufig unverbunden nebeneinander und sind wenig transparent. Die Bündelung familienbezogener Maßnahmen bei einer Familienkasse als Parafiskus könnte, so die zentrale Aussage dieses Beitrags, Abhilfe schaffen. Die grundsätzlichen Vor- und Nachteile parafiskalischer Institutionen werden zusammengefasst und es wird diskutiert, wie diese im Kontext familienbezogener Leistungen zu bewerten sind. Daran anschließend wird der Aspekt der Selbstverwaltung beleuchtet, da er in der Debatte um Parafisken einen prominenten Stellenwert einnimmt. Der Beitrag schließt mit der Skizzierung weiterer Ausgestaltungsparameter eines Familienparafiskus, seiner Finanzierung und des Leistungsspektrums. Eine Diskussion um den Leistungskatalog eines Familienparafiskus setzt allerdings eine systematische Evaluierung des Gesamtsystems voraus. Mittelfristig spricht einiges dafür mit einer Integration der familienbezogenen Maßnahmen in der Sozialversicherung und anderer beim Bund angesiedelter familienbezogener Leistungen in eine Familienkasse zu beginnen.
description: Journal of Family Research, Vol 20 No 3 (2008): Forschungsbeiträge aus den Disziplinen
Rate-capability of the VMM3a Front End in the RD51 Scalable Readout System
Creators: name: Pfeiffer, D.
name: Scharenberg, L.
name: Schwäbig, P.
name: Alcock, S.
name: Brunbauer, F.
name: Christensen, M. J.
name: Desch, K.
name: Flöthner, K.
name: Garcia, F.
name: Hall-Wilton, R.
name: Hracek, M.
name: Iakovidis, G.
name: Janssens, D.
name: Kaminski, J.
name: Lupberger, M.
name: Muller, H.
name: Oliveri, E.
name: Ropelewski, L.
name: Rusu, A.
name: Samarati, J.
name: van Stenis, M.
name: Utrobicic, A.
name: Veenhof, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The VMM3a is an Application Specific Integrated Circuit (ASIC), specifically developed for the readout of gaseous detectors. Originally developed within the ATLAS New Small Wheel (NSW) upgrade, it has been successfully integrated into the Scalable Readout System (SRS) of the RD51 collaboration. This allows, to use the VMM3a also in small laboratory set-ups and mid-scale experiments, which make use of Micro-Pattern Gaseous Detectors (MPGDs). As part of the integration of the VMM3a into the SRS, the readout and data transfer scheme was optimised to reach a high rate-capability of the entire readout system and profit from the VMM3a's high single-channel rate-capability of 3.6 Mhits/s. The optimisation focused mainly on the handling of the data output stream of the VMM3a, but also on the development of a trigger-logic between the front-end cards and the DAQ computer. In this article, two firmware implementations of the non-ATLAS continuous readout mode are presented, as well as the implementation of the trigger-logic. Afterwards, a short overview on X-ray imaging results is presented, to illustrate the high rate-capability rom an application point-of-view.
Die Auswirkungen häuslicher Pflege auf die Arbeitsteilung in der Familie
Creators: name: Jabsen, Annika
name: Blossfeld, Hans-Peter
Publisher: name: Journal of Family Research
Year: 2008

description: In this article we study the effects of home care on individual time use patterns of family members and the household division of labour. We focus on the amount of time that 30 to 65 year old women and men spend on employment and housework, and the changes that might occur on both the individual and the couples level when home care becomes necessary. The longitudinal analysis is based on data of the German Socioeconomic Panel from 1985 to 2004. Referring to caring for relatives, empirical evidence shows that women, in particular, increase their time for housework and decrease their time for paid employment. Focusing on couples division of labour in the household, our findings indicate a traditionalization process. The female partner fulfills the larger part of the housework time requirements, while the male partner fulfills the larger part of paid employment time requirements. Zusammenfassung Der vorliegende Beitrag analysiert die Auswirkungen der Anwesenheit pflegebedürftiger Personen auf die individuelle Zeitverwendung und die Arbeitsteilung der Haushaltsmitglieder. Die Untersuchung bezieht sich konkret auf die Zeit, die Frauen und Männer im Alter von 30 bis 65 Jahren für Erwerbstätigkeit und Haushaltsarbeit aufbringen und fokussiert die Veränderung der individuellen und relativen Zeitverwendungsmuster bei Eintritt eines Pflegeereignisses. Es handelt sich um eine Längsschnittanalyse auf Basis der Daten des Sozio-oekonomischen Panels von 1985 bis 2004. Empirisch zeigt sich, dass sich vor allem die Frauen nach einem Pflegeereignis verstärkt im Haushalt engagieren und ihre Erwerbsbeteiligung reduzieren. Auf Paarebene lassen sich verstärkte Traditionalisierungstendenzen erkennen. Die Frau übernimmt einen größeren Anteil der Hausarbeitszeit, der Mann einen größeren Anteil der Erwerbsarbeitszeit.
description: Journal of Family Research, Vol 20 No 3 (2008): Forschungsbeiträge aus den Disziplinen
Prioritising areas for dugong conservation in a marine protected area using a spatially explicit population model
Creators: name: Grech, Alana
name: Marsh, Helene
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: The Great Barrier Reef World Heritage Area (GBRWHA) covers an area of approximately 348,000km2 making it the world’s largest World Heritage Area / marine protected area complex. Dugongs (Dugong dugon) inhabit the shallow protected waters of the GBRWHA, and were an explicit reason for the region’s World Heritage listing. To manage dugongs effectively in the GBRWHA, it is critical to understand their spatial relationship with their environment and the human activities that threaten them. We demonstrate how a spatially explicit dugong population model can be used to prioritise conservation initiatives for dugongs in the GBRWHA. We used information collected from dugong aerial surveys in conjunction with geostatistical techniques, including universal kriging, to develop a model of dugong distribution and abundance. After completing the model, we conducted frequency analyses to categorise relative dugong density and distribution to identify areas of low, medium or high conservation value. As dugongs extend over a wide distributional range, prioritising areas of conservation value has the potential to be an important basis for administering management resources. We conclude that spatially explicit population models are an effective component of species conservation management, particularly for species that range over large, complex and dynamic regions.
Classifying binary black holes from Population III stars with the Einstein Telescope: A machine-learning approach
Creators: name: Santoliquido, Filippo
Publisher: name: Zenodo
Year: 2024

description: This Zenodo repository contains the parameter estimation generated with GWFish of black hole mergers from Population III and Population I-II stars, based on models in Iorio et al. 2023 and Santoliquido et al. 2023. This dataset is necessary to reproduce the results of Santliquido et al. 2024.
Hopfion Dynamics in Chiral Magnets
Creators: name: Khodzhaev, Zulfidin
name: Turgut, Emrah
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Resonant spin dynamics of topological spin textures are correlated with their topological nature, which can be employed to understand this nature. In this study, we present resonant spin dynamics of three-dimensional topological spin texture, i.e., Neel and Bloch hopfions. Using micromagnetic simulations, we stabilize Bloch and Neel hopfions with bulk and interfacial Dzyaloshinskii-Moriya interaction (DMI), respectively. We identify the ground state spin configuration of both hopfions, effects of anisotropies, geometric confinements, and demagnetizing fields. To confirm topological nature, Hopf number is calculated for each spin texture. Then, we calculate the resonance frequencies and spin-wave modes of spin precessions under multiple magnetic fields. Unique resonance frequencies and specific magnetic field dependence can help to guide experimental studies to identify the three-dimensional topological spin texture of hopfions in functioning chiral magnets when imaging is not possible.
description: 15 pages, 7 figures
title: A View of Melville's Piazza Tales from The Piazza
Creators: name: Vanek, Amy Nadine
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1998

description: Literary critics have tended to view Melville's short stories as individual units, though sometimes also in relation to his other major works. However, six of his short stories were collected in The Piazza Tales and republished as a unit. This was not just an arbitrary association, but a carefully designed collection established by Melville with the agreement of his publisher. Significantly, the first story, "The Piazza," was never published independently, only as a specific introduction to this combined work. Some critics have noted the important role that "The Piazza" then assumes. However, limited criticism and analysis is currently available which not only discusses the themes of this first tale but also traces these themes through the entire work.

In this thesis I consider the themes presented in "The Piazza" which include limited and changing perspective as well as the need for a retreat and place of security for one who ventures out into the world. I discuss the wide variety of critical opinion present regarding each of the tales and establish how these issues put them into perspective as well. Here the issue is not so much direct association and symbolism in characters and problems which have no verifiable quantities or answers but the way in which events and characters are seen and the viable means of coping for one who will realize this. With a view of the collection as a whole, Melville's attempt to unsettle dominant or commonly held perspectives becomes apparent as well as his own need to approach these issues indirectly at times, or his own retreat to a piazza of sorts.
Ordering Effects vs. cognitive burden – How should we structure attributes in conjoint experiments
Creators: name: Rudolph, Lukas
name: Freitag, Markus
name: Thurner, Paul
Publisher: name: ETH Zurich
Year: 2022
Subjects: assumptions
bias
cognitive burden
conjoint experiment
Ordering

description: Conjoint experiments have become very popular in recent years in political science and related disciplines. They offer a flexible way to elicit population preferences on complex choice tasks. We investigate whether we can improve citizens’ survey experience, and ultimately choice quality, by diverging from the current standard of randomized conjoint attribute ordering. Such random ordering guarantees that any potential bias from attribute order cancels out on average. However, in situations with many attributes (> 4) this may unnecessarily increase cognitive demand for respondents, as attributes which belong together in terms of content are presented scattered across the choice table. Hence, we investigate experimentally whether purposeful ordering (where the researcher chooses a display order with "theoretically important" dimensions first, i.e. dimensions (s)he wishes the respondent to process first) or block-randomized ordering (where the researcher displays attributes belonging to the same theoretical concept in randomized bundles) affects survey experience, response time and choice itself, as compared to a fully randomized ordering of attributes. Drawing on a complex conjoint choice design with nine attributes and 6,600 respondents (and hence sufficient power) from Germany and France we find that neither block-randomization, nor full randomization nor purposeful ordering affects self-reported survey experience, choice task timing or attribute weighting, not even systematically for high vs. low educated respondents where cognitive bur den effects could most likely be expected. To our knowledge, we thereby provide the first systematic empirical evidence that ordering effects are likely of low relevance in conjoint choice experiments, and that the trade-off between cognitive burden and ordering effects is minimal from the perspective of respondents, at least for our substance matter.
description: SocArXiv
Wer nutzt Internetkontaktbörsen in Deutschland?
Creators: name: Schulz, Florian
name: Skopek, Jan
name: Klein, Doreen
name: Schmitz, Andreas
Publisher: name: Journal of Family Research
Year: 2008

description: This paper seeks to identify, who is using online dating sites in Germany. Theoretically, it is drawn on the debate about the digital divide of society and the findings of sociological mate selection research. Several hypotheses are presented on how individuals using internet dating vary in socioeconomic and demographic characteristics. These considerations are then tested empirically, using the data of the ARD/ZDF-Online Study 2007, a representative national sample of internet behaviour in Germany. Compared to the total population, the results show that online daters are rather male, younger, higher educated and live in households with a higher income. Compared to all internet users, online daters are also rather male, younger and living in single households; however, lower educated individuals are slightly overrepresented. Our work contributes to the research by showing that the propensity of men and women to participate in online dating depends on their individual perspectives at the marriage market. Particularly higher educated women and lower educated men belong to those groups that try to extend their pool of partners by using dating sites. Zusammenfassung Der Aufsatz stellt die Frage, wer in Deutschland die Möglichkeit der internetgestützten Partnersuche nutzt. Ausgehend von der Debatte um digitale Ungleichheiten werden in Auseinandersetzung mit den Erkenntnissen der soziologischen Partnerwahlforschung theoretische Hypothesen formuliert, nach welchen sozialstrukturellen Merkmalen die Teilnahme am Onlinedating variiert. Diese Überlegungen werden auf Basis der Daten der ARD/ZDF-Onlinestudie 2007, einer für Deutschland repräsentativen Erhebung zur Internetnutzung, empirisch geprüft. Verglichen mit der Gesamtbevölkerung zeigt sich, dass die Onlinedater eher männlich, jünger und höher gebildet sind, sowie tendenziell in Haushalten mit höherem Einkommen leben. Verglichen mit den Internetnutzern sind die Onlinedater wiederum eher männlich, jünger und alleinwohnend; allerdings sind hier niedriger gebildete Personen leicht überrepräsentiert. In Erweiterung zu früheren Untersuchungen zeigen unsere Ergebnisse, dass die Neigung von Männern und Frauen, am Onlinedating teilzunehmen, von ihren jeweiligen Perspektiven am Heiratsmarkt abhängig ist. Vor allem höher gebildete Frauen und niedrig gebildete Männer gehören dabei zu den Gruppen, die durch die Nutzung von Online-Kontaktbörsen ihre Partnersuche ausweiten.
description: Journal of Family Research, Vol 20 No 3 (2008): Forschungsbeiträge aus den Disziplinen
The CAMELS Multifield Dataset: Learning the Universe's Fundamental Parameters with Artificial Intelligence
Creators: name: Villaescusa-Navarro, Francisco
name: Genel, Shy
name: Angles-Alcazar, Daniel
name: Thiele, Leander
name: Dave, Romeel
name: Narayanan, Desika
name: Nicola, Andrina
name: Li, Yin
name: Villanueva-Domingo, Pablo
name: Wandelt, Benjamin
name: Spergel, David N.
name: Somerville, Rachel S.
name: Matilla, Jose Manuel Zorrilla
name: Mohammad, Faizan G.
name: Hassan, Sultan
name: Shao, Helen
name: Wadekar, Digvijay
name: Eickenberg, Michael
name: Wong, Kaze W. K.
name: Contardo, Gabriella
name: Jo, Yongseok
name: Moser, Emily
name: Lau, Erwin T.
name: Valle, Luis Fernando Machado Poletti
name: Perez, Lucia A.
name: Nagai, Daisuke
name: Battaglia, Nicholas
name: Vogelsberger, Mark
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We present the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) Multifield Dataset, CMD, a collection of hundreds of thousands of 2D maps and 3D grids containing many different properties of cosmic gas, dark matter, and stars from 2,000 distinct simulated universes at several cosmic times. The 2D maps and 3D grids represent cosmic regions that span $\sim$100 million light years and have been generated from thousands of state-of-the-art hydrodynamic and gravity-only N-body simulations from the CAMELS project. Designed to train machine learning models, CMD is the largest dataset of its kind containing more than 70 Terabytes of data. In this paper we describe CMD in detail and outline a few of its applications. We focus our attention on one such task, parameter inference, formulating the problems we face as a challenge to the community. We release all data and provide further technical details at https://camels-multifield-dataset.readthedocs.io.
description: 17 pages, 1 figure. Third paper of a series of four. Hundreds of thousands of labeled 2D maps and 3D grids from thousands of simulated universes publicly available at https://camels-multifield-dataset.readthedocs.io
Per-pixel and sub-pixel classifications of high-resolution satellite data for mangrove species mapping
Creators: name: Kanniah, Kasturi Devi
name: Wai, Ng Su
name: Shin, Alvin Lau Meng
name: Rasib, Abd. Wahid
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: High spatial resolution sensors such as IKONOS and QuickBird, are expected to classify mangrove species more accurately than coarse spatial resolution satellite images. Conventional per-pixel classification techniques could not improve the classification accuracy when such high-resolution images are applied. Such failure has encouraged the invention of more sophisticated and deterministic techniques i.e. subpixel classifications. In this study, the mangrove forest at Sungai Belungkor, Johor, Malaysia was classified using IKONOS data. Two classification approaches were applied, namely per-pixel and sub-pixel techniques. The conventional per-pixel classifiers used in this study were Maximum Likelihood (ML), Minimum Distance to Mean (MDM) and Contextual Logical Channel (CLC) while the Linear Mixture Model (LMM) was selected as the sub-pixel classification approach. The classification results revealed that the CLC classification with a contrast texture measure at window size 21 x 21 yielded the highest accuracy (82%) in comparison to the ML (68%) or MDM (64%). The spatial distribution of the classified mangrove species and classes coincided with the common mangrove zones in Malaysia. For the results of the LMM, the fraction of pixels measured from the satellite imagery and observed in the field gave a good correlation with an R2 value of 0.83 for Bakau minyak, a moderate correlation with an R2 of approximately 0.71 for Bakau kurap and an R2 of 0.75 for the ‘Others’ type of mangrove species. An error image was also created to compare the best fitting spectrum produced by the inversion of the LMM with the original observed spectrum, where the maximum RMS error was only 5%.
Deutschsprachige Game Studies 2021 – 2031: eine Vorausschau
Creators: name: Inderst, Rudolf
name: Heller, Lambert
Publisher: name: München : Ludwig-Maximilians-Universität München, Institut für Deutsche Philologie
Year: 2021
Subjects: subject: Videoessays
subject: Game Studies
subject: Spieleforschung
subject: 004
subject: 793

description: Rudolf Inderst und Lambert Heller stellen die grundsätzliche Frage, ob Text überhaupt die richtige Form ist, um sich mit digitalen Spielen wissenschaftlich auseinanderzusetzen. Sie sprechen sich dabei für die Etablierung und Verwendung der Form des Videoessays ein, die bereits in ihrer audiovisuellen Materialität dem Gegenstand angemessener sei.
„Ich und meine Familie“ – Reflexionen von Scheidungskindern über ihre Familie
Creators: name: Krause, Christina
name: Klopp, Verena
Publisher: name: Journal of Family Research
Year: 2008

description: For children, the divorce of their parents constitutes a critical life event exposing them to various stressful situations and requires them to reorganize and restructure their concept of the family. This study aims at gathering information on the children’s perspective on the reorganized relationships within the family. In the context of the study „I am who I am – Health promotion through reinforcement of self-esteem”, children from elementary schools have been asked to draw pictures of their families. The depictions made by children of divorced parents differ significantly from those made by children who did not experience their parents’ divorce. A closer inspection of the group consisting of children of divorced parents shows that boys have greater difficulties than girls to adapt to the new family situation. The depictions made by children of divorced parents are heterogeneous, there is no proof of a typical after-divorce situation. Zusammenfassung Eine elterliche Trennung ist für Kinder ein kritisches Lebensereignis, das sie vielfältigen Belastungen aussetzt und von ihnen eine Reorganisation und Umstrukturierung des Familienkonzepts erfordert. Das Ziel der Untersuchung bestand darin, die kindliche Perspektive gegenüber den neu organisierten Familienbeziehungen zu erfassen. Im Rahmen des Forschungsprojekts „Ich bin ich – Gesundheit fördern durch Selbstwertstärkung” wurden von Grundschulkindern Familienbilder angefertigt. In diesem Beitrag werden die Ergebnisse dieser Analyse vorgestellt. Die Darstellungen der Scheidungskinder unterscheiden sich deutlich von den Darstellungen der Kinder, die die Erfahrung von Scheidung nicht gemacht haben. Die nähere Betrachtung der Gruppe der Scheidungskinder zeigt, dass Jungen mehr Anpassungsschwierigkeiten an die neue Familiensituation haben als Mädchen. Die Darstellungen der Scheidungskinder sind sehr heterogen, die typische Nachscheidungssituation kann nicht festgestellt werden.
description: Journal of Family Research, Vol 20 No 3 (2008): Forschungsbeiträge aus den Disziplinen
Perspectives on Zapatista women's identities: Situationality, Gender and Decoloniality
Creators: name: Espinoza-Rivera, Almendra
Publisher: name: Interdisziplinäre Lateinamerikazentrum (ILZ)
Year: 2024
Subjects: subject: Zapatista women
subject: Zapatistas identities
subject: revolución interna
subject: malas costumbres
subject: gender roles
subject: decolonial feminism
subject: indigenous feminism
subject: Mujeres zapatistas
subject: identidades zapatistas
subject: roles de género
subject: feminismo decolonial
subject: feminismo indígena
subject: ddc:300

description: The aim of my work focuses on the analysis of the identities and resistances that Zapatis-ta women have been thinking and weaving since the emergence of the Ejército Zapatista de Liberación Nacional – EZLN (The Zapatista Army of National Liberation) in 1994 until the present. In the framework of what they call the ‘revolución interna’, this seeks to end the ‘malas costumbres’ that exist within their communities, particularly those practices of macho oppression exercised by their male counterparts, and which are generally based on gender roles. To understand this process, I analyse and reflect on the existing proximities and distances between the political proposal of Zapatista women, the approaches of decolonial feminism, and indigenous feminisms. As research sources I use previous research conducted in and on Zapatista communities; and my own experience of working with the Zapatistas on their “Zapatista Tour” in Europe between September and November 2021, in the cities of Frankfurt and Freiburg.
description: Perspectivas sobre las identidades de las mujeres zapatistas: Situacionalidad, Género y Decolonialidad
El objetivo de mi trabajo se centra en el análisis de las identidades y resistencias que las mujeres zapatistas han venido pensando y tejiendo desde el surgimiento del EZLN en 1994 hasta la actualidad. En el marco de lo que ellas llaman la ́revolución interna`, ésta busca acabar con las ́malas costumbres` que existen dentro de sus comunidades, particularmente aquellas prácticas de opresión machista ejercidas por sus compañeros varones, y que generalmente se basan en roles de género. Para entender este proceso, analizo y reflexiono sobre las cercanías y distancias existentes entre la propuesta política de las mujeres zapatistas, los planteamientos del feminismo decolonial y los feminismos indígenas. Como fuentes de investigación utilizo investigaciones previas realizadas en y sobre comunidades zapatistas; y mi propia experiencia de trabajo con los zapatistas en su 'Gira Zapatista' en Europa entre septiembre y noviembre de 2021, en las ciudades de Frankfurt y Freiburg.
New simulations of accreting DA white dwarfs: inferring accretion rates from the surface contamination
Creators: name: Wachlin, F. C.
name: Vauclair, G.
name: Vauclair, S.
name: Althaus, L. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A non negligible fraction of white dwarf stars show the presence of heavy elements in their atmospheres. The most accepted explanation for this contamination is the accretion of material coming from tidally disrupted planetesimals, which form a debris disk around the star. We provide a grid of models for hydrogen rich white dwarfs accreting heavy material. We sweep a 3D parameter space involving different effective temperatures, envelope's hydrogen content and accretion rates. The grid is appropriate for determining accretion rates in white dwarfs showing the presence of heavy elements. Full evolutionary calculations of accreting white dwarfs were computed including all relevant physical processes, particularly the fingering (thermohaline) convection, a process neglected in most previous works, that has to be considered to obtain realistic estimations. Accretion is treated as a continuous process and bulk Earth composition is assumed for the accreted material. We obtain final (stationary or near stationary) and reliable abundances for a grid of models representing hydrogen rich white dwarfs of different effective temperatures and hydrogen contents, applied to various accretion rates. Our results provide estimates of accretion rates, accounting for thermohaline mixing, to be used for further studies on evolved planetary systems.
description: 14 pages, 13 figures, 7 tables. Accepted for publication in A&A
Optimization of health facility locations in Osh City, Kyrgyzstan
Creators: name: Teshebaeva, Kanayim O.
name: Jain, Sadhana
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: Basic information regarding location of existing facilities, their accessibility and development trends, in relation to socio-economic structure of a city is needed in order to prepare its developmental plan. Re-location of any service may not be feasible economically, but location-allocation models can be used to identify new potential locations. This study is an attempt to simulate new potential locations and evaluate the feasibility of optimization models for planning additional health facility in the Osh city. The result of the study shows the potential of the p-median approach for optimization of the location of various public services. The contribution of GIS to optimization techniques is mainly its use as a method for data gathering and visualization of the result. These two technologies can be fully integrated to provide a powerful tool for spatial decision support.
Digital Transformation of Education Credential Processes and Life Cycles – A Structured Overview on Main Challenges and Research Questions
Creators: name: Keck, Ingo R.
name: Vidal, Maria-Esther
name: Heller, Lambert
Publisher: name: [Wilmington, DE, USA] : IARIA, [2020]
Year: 2020
Subjects: subject: E-Learning
subject: Credentials
subject: Education credentials
subject: Digitisation
subject: Challenges in digitisation
subject: Konferenzschrift
subject: 370
subject: 004

description: In this article, we look at the challenges that arise in the use and management of education credentials, and from the switch from analogue, paper-based education credentials to digital education credentials. We propose a general methodology to capture qualitative descriptions and measurable quantitative results that allow to estimate the effectiveness of a digital credential management system in solving these challenges. This methodology is applied to the EU H2020 project QualiChain use case, where five pilots have been selected to study a broad field of digital credential workflows and credential management. Copyright (c) IARIA, 2020
GIS-based spatial analysis of child pedestrian accidents near primary schools in Montréal, Canada
Creators: name: Cloutier, Marie-Soleil
name: Apparicio, Philippe
name: Thouez, Jean-Pierre
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: In Montréal, Canada, accidents affecting child pedestrians (5 to 14 years old) remained almost constant from 1994 to 1999 despite the great amount of prevention measures. Moreover, the elementary public school environment has been barely taken into account by past and present research on factors affecting the risk of accident even though children attend school most weekdays. We argue here, therefore, that the integration of the local environment into the spatial analysis of child pedestrian accidents could help to reduce them. Accordingly, we have integrated socio-economic and environmental data into a geographic information system in order to perform a geographically weighted regression and results demonstrate that the average network distance separating accident and closest school is less than 500 meters, thereby confirming a relationship of proximity between these two locations. Results also demonstrate the relevance of adding a spatial dimension to the regression model by suggesting that prevention initiatives should take into account the particular nature of each neighbourhood so that more relevant risk factors can be targeted.
Brown-York charges at null boundaries
Creators: name: Chandrasekaran, Venkatesa
name: Flanagan, Eanna E.
name: Shehzad, Ibrahim
name: Speranza, Antony J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Brown-York stress tensor provides a means for defining quasilocal gravitational charges in subregions bounded by a timelike hypersurface. We consider the generalization of this stress tensor to null hypersurfaces. Such a stress tensor can be derived from the on-shell subregion action of general relativity associated with a Dirichlet variational principle, which fixes an induced Carroll structure on the null boundary. The formula for the mixed-index tensor $T{}^i{}_j$ takes a remarkably simple form that is manifestly independent of the choice of auxiliary null vector at the null surface, and we compare this expression to previous proposals for null Brown-York stress tensors. The stress tensor we obtain satisfies a covariant conservation equation with respect to any connection induced from a rigging vector at the hypersurface, as a result of the null constraint equations. For transformations that act covariantly on the boundary structures, the Brown-York charges coincide with canonical charges constructed from a version of the Wald-Zoupas procedure. For anomalous transformations, the charges differ by an intrinsic functional of the boundary geometry, which we explicity verify for a set of symmetries associated with finite null hypersurfaces. Applications of the null Brown-York stress tensor to symmetries of asymptotically flat spacetimes and celestial holography are discussed.
description: 22 pages + appendix; v2: fixed sign conventions, references added; v3 references added, matches published version