cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Poesie zur Selbstbehauptung und Anfechtung
title: Die Bedeutung Alternativer Memories für das Handlungsvermögen von Dalit Dichterinnen; eine Analyse ausgewählter Gedichte von indischen Dalit Autorinnen
titleType: Subtitle
Creators: name: Hesse, Meret
Publisher: name: Göttingen : GISCA, Göttingen Institute for Social and Cultural Anthropology, Georg-August-Universität Göttingen
Year: 2017
Subjects: Indien
Dalit
Kaste
Gender
Handlungsvermögen
Erinnerung
Memory India
Caste

description: Ausgehend von der Darlegung der dreifachen Diskriminierung der Dalit Frauen in der indischen Gesellschaft, durch Gender, Kaste und Klasse, wird in dieser Arbeit das Handlungsvermögen von Dalit Dichterinnen betrachtet. Dafür werden fünf Gedichte von den Dalit Dichterinnen Meena Kandasamy, Challapalli Swaroopa Rani, Viljay Kumari und Darisi Sasi Nirmala mit dem Konzept des Alternativen Memory betrachtet und analysiert, inwiefern sich in den Gedichten das Handlungsvermögen von Dalit Frauen zeigt.
description: Building on the explanation that Dalit Women are thrice discriminated within Indian society, through Gender, Caste and Class, this paper examines the agency of Dalit Women Poets. With help of the concept of Alternative Memory this work therefore looks at five poems of Dalit Women Poets Meena Kandasamy, Challapalli Swaroopa Rani, Viljay Kumari und Darisi Sasi Nirmala to analyse how and in which moments the agency of Dalit Women shines through.
description: GISCA occasional paper ; 13
Support for standardisation of high voltage testing with composite and combined wave shapes
Creators: name: Meisner, Johann
name: Gockenbach, Ernst
name: Saadeddine, Hanane
name: Havunen, Jussi
name: Schichler, Uwe
name: Elg, Alf-Peter
name: Garnacho, Fernando
name: Roccato, Paolo Emilio
name: Merev, Ahmet
name: Lahti, Kari
name: Backhaus, Karsten
name: Orrea, Andrea
name: Gamlin, Michael
name: Steiner, Thomas
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2021
Subjects: Electricity grids
high voltage testing
traceability
combined wave shapes
composite wave shapes
universal dividers
calibration

description: As part of the production of equipment for high voltage electricity grids, high voltage tests are performed to verify that the equipment can withstand the operational voltage stresses. Such ‘withstand tests’ are performed using combined and composite waves, where lightning impulse (LI) or switching impulse (SI) waves are superimposed on AC or DC. Both the technical understanding of the generation and measurement of such high voltage wave forms and the regulations in international standards are not sufficient for the current requirements. Therefore, a European metrology project with industrial partners, universities and seven European metrology institutes (NMI) is started in 2020. In three technical work packages the metrological and standardisation need will be issued. First, the relationship between impulse voltages with AC or DC measurement, and related detrimental effects due to combining wave shape tests will be reliably determined. New measurement instruments, low voltage generators and measurement evaluation software will be created. Traceable high voltage measurement systems and calibration services for composite and combined wave shapes, with a target amplitude uncertainty of less than 2 % will be developed at the NMIs. The capabilities of these NMIs will be confirmed with aid of a high voltage comparison campaign at PTB. The uncertainty of existing voltage dividers and measuring systems used in tests with composite and combined wave shapes will be accurately determined. Finally, the research results will be forwarded to the ongoing revision of the IEC 60060 series.
Direct certification of a class of quantum simulations
Creators: name: Hangleiter, D.
name: Kliesch, M.
name: Schwarz, M.
name: Eisert, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: One of the main challenges in the field of quantum simulation and computation is to identify ways to certify the correct functioning of a device when a classical efficient simulation is not available. Important cases are situations in which one cannot classically calculate local expectation values of state preparations efficiently. In this work, we develop weak-membership formulations of the certification of ground state preparations. We provide a non-interactive protocol for certifying ground states of frustration-free Hamiltonians based on simple energy measurements of local Hamiltonian terms. This certification protocol can be applied to classically intractable analog quantum simulations: For example, using Feynman-Kitaev Hamiltonians, one can encode universal quantum computation in such ground states. Moreover, our certification protocol is applicable to ground states encodings of IQP circuits demonstration of quantum supremacy. These can be certified efficiently when the error is polynomially bounded.
description: 10 pages, corrected a small error in Eqs. (2) and (5)
The interplay between dopamine genes and diet
Creators: name: Hartmann, Hendrik
name: Janssen, Lieneke
name: Rausch, Franziska
name: Horstmann, Annette
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: dopamine
subject: epigenetics
subject: high fat sugar diet
subject: mRNA expression

description: The neurotransmitter dopamine plays a central role in several cognitive domains such as motivation, reward-processing, reinforcement learning, decision-making and executive functions including working memory and attention (Arnsten, Wang, & Paspalas, 2012; Logue & Gould, 2013; Rogers, 2011; Schultz, 2002; Volkow, Wise, & Baler, 2017). Results of our recent studies point towards prominent alterations in these domains in overweight and obesity and suggest the existence of a non-linear relationship between markers of obesity and central dopamine tone (Horstmann, Fenske, & Hankir, 2015). Dopamine tone in the brain depends on both genetic and environmental factors. Genetic differences in important genes within the dopaminergic synapse, i.e. COMT (important for dopamine degradation) and dopamine receptor D2 (A1 allele of Taq1A), lead to altered dopamine signaling and can therefore contribute to higher vulnerability for diet-induced obesity (Annerbrink et al., 2008; Epstein et al., 2007). One important environmental factor that is hypothesized to affect dopamine transmission in obesity is an unhealthy diet. Accumulating evidence from animal research suggests that observed differences in dopamine signaling in obesity may be induced by diet rather than obesity (Geiger et al., 2009; Narayanaswami, Thompson, Cassis, Bardo, & Dwoskin, 2013; van de Giessen et al., 2013; Vucetic, Carlin, Totoki, & Reyes, 2012). However, the evidence for diet-induced alterations in dopamine signal transmission and their effects on dopamine-mediated cognitive processes in humans is scarce. In the proposed study, we aim to address the effect of diet high in fat and sugar on dopamine signal transmission in the brain and on dopamine-mediated cognitive performance.
Grassroots Organizing Work (GROW)
Creators: name: Standish, Jennifer
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This paper examines an interracial labor organizing project in the Southern pulpwood processing industry. The project was organized by two white former members of the Student Nonviolent Coordinating Committee (SNCC) in response to the organization’s directive that white activists conduct antiracist organizing in white communities.  It was ultimately funded by the Southern Conference Educational Fund (SCEF). GROW’s strategy was to convince poor white Southerners of their common interests with black Southerners through labor organizing and, in turn, to transform their racial attitudes. Due to the successes of the classical civil rights movement, including the Voting Rights and Civil Rights Acts, as well as the mobilization of white antiracist activists, the project succeeded in building interracial coalitions and winning modest gains for pulpwood haulers. This paper joins existing 1970s labor and New Left historiography while also interrogating the historiography of civil rights unionism and interracial coalition building in the Deep South.
Nonlinear evolution of cylindrical gravitational waves: numerical method and physical aspects
Creators: name: Celestino, Juliana
name: de Oliveira, H. P.
name: Rodrigues, E. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: General cylindrical waves are the simplest axisymmetrical gravitational waves that contain both $+$ and $\times$ modes of polarization. In this paper, we have studied the evolution of general cylindrical gravitational waves in the realm of the characteristic scheme with a numerical code based on the Galerkin-Collocation method. The investigation consists of the numerical realization of concepts such as Bondi mass and the news functions adapted to cylindrical symmetry. The Bondi mass decays due to the presence of the news functions associated with both polarization modes. We have interpreted that each polarization mode as channels from which mass is extracted. Under this perspective, we have presented the enhancement effect of the polarization mode $+$ due to the nonlinear interaction with the mode $\times$. After discussing the role of matter in cylindrical symmetry, we have extended the numerical code to include electromagnetic fields.
description: 11 pages, 8 figures
Probing Polariton Dynamics in Trapped Ions with Phase-Coherent Two-Dimensional Spectroscopy
Creators: name: Gessner, Manuel
name: Schlawin, Frank
name: Buchleitner, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We devise a phase-coherent three-pulse protocol to probe the polariton dynamics in a trapped-ion quantum simulation. In contrast to conventional nonlinear signals, the presented scheme does not change the number of excitations in the system, allowing for the investigation of the dynamics within an $N$-excitation manifold. In the particular case of a filling factor one ($N$ excitations in an $N$-ion chain), the proposed interaction induces coherent transitions between a delocalized phonon superfluid and a localized atomic insulator phase. Numerical simulations of a two-ion chain demonstrate that the resulting two-dimensional spectra allow for the unambiguous identification of the distinct phases, and the two-dimensional lineshapes efficiently characterize the relevant decoherence mechanism.
Quantum phase transitions and decoupling of magnetic sublattices in the quasi-two-dimensional Ising magnet Co3V2O8 in a transverse magnetic field
Creators: name: Fritsch, K.
name: Ehlers, G.
name: Rule, K. C.
name: Habicht, K.
name: Ramazanoglu, M.
name: Dabkowska, H. A.
name: Gaulin, B. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The application of a magnetic field transverse to the easy axis, Ising direction in the quasi-two-dimensional Kagome staircase magnet, Co3V2O8, induces three quantum phase transitions at low temperatures, ultimately producing a novel high field polarized state, with two distinct sublattices. New time-of-flight neutron scattering techniques, accompanied by large angular access, high magnetic field infrastructure allow the mapping of a sequence of ferromagnetic and incommensurate phases and their accompanying spin excitations. At least one of the transitions to incommensurate phases at μ0Hc1~6.25 T and μ0Hc2~7 T is discontinuous, while the final quantum critical point at μ0Hc3~13 T is continuous.
description: 5 pages manuscript, 3 pages supplemental material
Short and long term effects of interactions in compact exosystems
Creators: name: Strugarek, Antoine
Publisher: name: Zenodo
Year: 2023

description: Over the last two decades, a large population of close-in planets has been detected around a wide variety of host stars. Such planets are thought to strongly interact with their host star by means of the irradiation they receive, the tidal forces they induce, as well as their interaction with the ambient magnetised stellar atmosphere and wind they orbit in. Can we use these interactions to better constrain these planets and their hosting stars? And where does this population of hot planets originate from? The properties of the host star determine the key ingredients at the heart of these interactions. The stellar spectrum is the primary driver of the interaction in the upper atmosphere of exoplanets. The stellar structure determines its response to the tidal forcing from his hot exoplanet. Finally, the stellar global magnetic field is at the heart of star-planet magnetic interaction: its strength sets the magnetic energy available for the interaction, its shape determines the connection path between the star and the planet, and its temporal modulation (e.g. magnetic cycles) is at the source of an on/off behavior of the magnetic interaction. I give an overview of our understanding of star-planet interactions. I focus on describing short term —intra-orbit— and long term —secular— effects of these interactions. I will reflect on our present capability to detect and characterise them, both in individual systems and in the hot exoplanets population. When detected, star-planet interactions indeed provide a fantastic opportunity to better understand the environment of the host star, as well as the properties of the exoplanet triggering them.
Modelling Spatial Regimes in Farms Technologies
Creators: name: Billé, Anna Gloria
name: Salvioni, Cristina
name: Benedetti, Roberto
Publisher: name: arXiv
Year: 2016
Subjects: subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: We exploit the information derived from geographical coordinates to endogenously identify spatial regimes in technologies that are the result of a variety of complex, dynamic interactions among site-specific environmental variables and farmer decision making about technology, which are often not observed at the farm level. Controlling for unobserved heterogeneity is a fundamental challenge in empirical research, as failing to do so can produce model misspecification and preclude causal inference. In this article, we adopt a two-step procedure to deal with unobserved spatial heterogeneity, while accounting for spatial dependence in a cross-sectional setting. The first step of the procedure takes explicitly unobserved spatial heterogeneity into account to endogenously identify subsets of farms that follow a similar local production econometric model, i.e. spatial production regimes. The second step consists in the specification of a spatial autoregressive model with autoregressive disturbances and spatial regimes. The method is applied to two regional samples of olive growing farms in Italy. The main finding is that the identification of spatial regimes can help drawing a more detailed picture of the production environment and provide more accurate information to guide extension services and policy makers.
Polar Dynamics at the Jahn-Teller Transition in Ferroelectric GaV4S8
Creators: name: Wang, Zhe
name: Ruff, E.
name: Schmidt, M.
name: Tsurkan, V.
name: Kézsmárki, I.
name: Lunkenheimer, P.
name: Loidl, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a dielectric spectroscopy study of the polar dynamics linked to the orbitally driven ferroelectric transition in the skyrmion host GaV4S8. By combining THz and MHz-GHz spectroscopy techniques, we succeed in detecting the relaxational dynamics arising from coupled orbital and polar fluctuations in this material and traced its temperature dependence in the paraelectric as well as in the ferroelectric phase. The relaxation time significantly increases when approaching the critical temperature from both sides of the transition. It is natural to assume that these polar fluctuations map the orbital dynamics at the Jahn-Teller transition. Due to the first-order character of the orbital-ordering transition, the relaxation time shows an enormous jump of about five orders of magnitude at the polar and structural phase transition.
description: 5 pages, 4 figures
Social Denial: An Analysis of Missing and Murdered Indigenous Women and Girls in Canada
Creators: name: Bychutsky, Rebecca
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Missing and Murdered Indigenous Women and Girls (MMIWG)
Social Denial
Indigenous women
News Media

description: Understood sociologically, denial is best conceptualized as a social practice. As a phenomenon, social denial refers to patterned behaviour where actors both know and do not-know about uncomfortable truths (Cohen, 2001). Put simply, social denial is a socially reproduced blindness in the face of traumatic events and processes. In opposition to social denial is a different social practice, bearing witness. Bearing witness is engaged when society’s actors give voice to those who would otherwise be silent. Drawing on theoretical frameworks from Stanley Cohen’s work States of Denial and Fujiko Kurasawa’s work Global Justice, this thesis aims to critically reflect and explore the registers and mechanisms of both social denial and bearing witness. The exploration of social denial is sociologically relevant, and generally important, as a means for understanding the role it plays in society, and to further understanding what social denial is and how it works. The better actors understand an issue the more capable they are of addressing it. This thesis conducts a media frame analysis of selected published articles from the National Post and the Globe and Mail that speak to the issue of MMIWG. This analysis reveals social denial through the frames “culpable victim”, “poster child”, and “the extra”; and bearing witness through the frame of the “honourable victim”. The analysis and research of this thesis reveal how social denial covers up the relevance of colonialism with respect to MMIWG. Furthermore, it suggests that social denial acts to both camouflage the gritty details underlying MMIWG and erase the identities of MMIWG.
Unsupervised Domain Discovery using Latent Dirichlet Allocation for Acoustic Modelling in Speech Recognition
Creators: name: Doulaty, Mortaza
name: Saz, Oscar
name: Hain, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Speech recognition systems are often highly domain dependent, a fact widely reported in the literature. However the concept of domain is complex and not bound to clear criteria. Hence it is often not evident if data should be considered to be out-of-domain. While both acoustic and language models can be domain specific, work in this paper concentrates on acoustic modelling. We present a novel method to perform unsupervised discovery of domains using Latent Dirichlet Allocation (LDA) modelling. Here a set of hidden domains is assumed to exist in the data, whereby each audio segment can be considered to be a weighted mixture of domain properties. The classification of audio segments into domains allows the creation of domain specific acoustic models for automatic speech recognition. Experiments are conducted on a dataset of diverse speech data covering speech from radio and TV broadcasts, telephone conversations, meetings, lectures and read speech, with a joint training set of 60 hours and a test set of 6 hours. Maximum A Posteriori (MAP) adaptation to LDA based domains was shown to yield relative Word Error Rate (WER) improvements of up to 16% relative, compared to pooled training, and up to 10%, compared with models adapted with human-labelled prior domain knowledge.
Structural and Biochemical Insights into the Assembly of the DPY-30/Ash2L Heterotrimer
Creators: name: Haddad, John
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Epigenetics
Chromatin
H3K4 methylation
Cardiolipin

description: In eukaryotes, the SET1 family of methyltransferases carry out the methylation of Lysine 4 on Histone H3. Alone, these enzymes exhibit low enzymatic activity and require the presence of additional regulatory proteins, which include RbBP5, Ash2L, WDR5 and DPY-30, to stimulate their catalytic activity. While previous structural studies established the structural basis underlying the interaction between RbBP5, Ash2L and WDR5, the formation of the Ash2L/DPY-30 complex remains elusive. Here we report the crystal structure of the Ash2L/DPY-30 complex solved at 2.2Å. Our results show that a Cterminal amphipathic α-helix on Ash2L makes several hydrophobic interactions with the DPY-30 homodimer. Moreover, the structure reveals that a tryptophan residue on Ash2L, which directly precedes its C-terminal amphipathic α-helix, makes key interactions with one of DPY-30 α-helix. Finally, biochemical studies of Ash2L revealed a hitherto unknown ability of this protein to bind anionic lipids.
Corruption and Women in Politics: Correlation, Institutional Context, or Coincidence?
Creators: name: Dumont, Marie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Women in Politics
Corruption
Feminist Institutionalism

description: Since the turn of the millennium, studies have demonstrated a relationship between gender and corruption, finding that in countries where female political participation is higher, indicators of corruption are lower. This thesis approaches this debate in two ways, quantitatively and qualitatively. A multivariate regression analysis updates data for the year 2015 and incorporates underexplored institutional variables. Results show that the proportion of women in politics is positively and significantly correlated with reduced corruption, even when controlling for these institutional variables. The findings from this analysis are applied to a focused comparison of two countries, Rwanda and Haiti, which have very different female representation and corruption outcomes, despite the presence of a very similar institution, a 30 percent legislated gender quota. Using feminist institutionalism as a theoretical guide for the analysis, this thesis demonstrates that institutions such as democracy and auditing standards moderate the relationship between female representation and corruption outcomes. On that basis, it concludes that while increasing female participation in politics can modestly contribute to reducing corruption, linking female participation to strengthening democratic governance and institutionalizing accountability can further reduce corruption in some developing country contexts.
Bioregionalism: The need for a firmer theoretical foundation
Creators: name: Alexander, Don
Publisher: name: Vancouver Island University - Royal Roads University
Year: 1996
Subjects: subject: Bioregionalism
subject: Human ecology

description: This article discusses the different methods and sets of criteria used for delineating bioregions.
description: This article was originally published as: Alexander, D. (1996). Bioregionalism: The need for a firmer theoretical foundation. The Trumpeter, 13(3), 1-7. The Trumpeter is an environmental humanities journal published by Athabasca University Press. More information about the journal can be found at: http://trumpeter.athabascau.ca. This article can also be found at: http://trumpeter.athabascau.ca/index.php/trumpet/article/view/260/386.
description: https://viuspace.viu.ca/bitstream/handle/10613/5116/Alexander.Trumpeter.13.3.pdf?sequence=4
Hubble Space Telescope Wide Field Camera 3 Observations of Escaping Lyman Continuum Radiation from Galaxies and Weak AGN at Redshifts $z$$\,\simeq\,$2.3-4.1
Creators: name: Smith, Brent M.
name: Windhorst, Rogier A.
name: Jansen, Rolf A.
name: Cohen, Seth H.
name: Jiang, Linhua
name: Dijkstra, Mark
name: Koekemoer, Anton M.
name: Bielby, Richard
name: Inoue, Akio K.
name: MacKenty, John W.
name: O'Connell, Robert W.
name: Silk, Joseph I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present observations of escaping Lyman Continuum (LyC) radiation from 34 massive star-forming galaxies and 12 weak AGN with reliably measured spectroscopic redshifts at $z$$\simeq$2.3-4.1. We analyzed Hubble Space Telescope Wide Field Camera 3 (WFC3) mosaics of the Early Release Science field in three UVIS filters to sample the rest-frame LyC over this redshift range. With our best current assessment of the WFC3 systematics, we provide 1$σ$ upper limits for the average LyC emission of galaxies at $z$=2.35, 2.75, and 3.60 to $\sim$28.5, 28.1, and 30.7 mag in image stacks of 11-15 galaxies in the WFC3/UVIS F225W, F275W, and F336W, respectively. The LyC flux of weak AGN at $z$=2.62 and 3.32 are detected at 28.3 and 27.4 mag with SNRs of $\sim$2.7 and 2.5 in F275W and F336W for stacks of 7 and 3 AGN, respectively, while AGN at $z$=2.37 are constrained to $\gtrsim$27.9 mag at 1$σ$ in a stack of 2 AGN. The stacked AGN LyC light profiles are flatter than their corresponding non-ionizing UV continuum profiles out to radii of r$\lesssim$0."9, which may indicate a radial dependence of porosity in the ISM. With synthetic stellar SEDs fit to UV continuum measurements longwards of Ly$α$ and IGM transmission models, we constrain the absolute LyC escape fractions to $f_{\rm esc}^{\rm abs}$$\simeq$$22^{+44}_{-22}$% at $z$=2.35 and $\lesssim$55% at $z$=2.75 and 3.60, respectively. All available data for galaxies, including published work, suggests a more sudden increase of $f_{\rm esc}$ with redshift at $z$$\simeq$2. Dust accumulating in (massive) galaxies over cosmic time correlates with increased HI column density, which may lead to reducing $f_{\rm esc}$ more suddenly at $z$$\lesssim$2. This may suggest that star-forming galaxies collectively contributed to maintaining cosmic reionization at redshifts $z$$\gtrsim$2-4, while AGN likely dominated reionization at $z$$\lesssim$2.
description: 38 pages (4 appendices), 13 (+4) figures, 3 (+3) tables; AASTeX6.1, pdflatex; accepted for publication in the Astrophysical Journal
Escala de valoració: Repartir punts
Creators: name: De Haro, J.J.
Publisher: name: Zenodo
Year: 2022
Subjects: Autoavaluació

description: Aquesta és una tècnica per l’''avaluació amb qualificació'' on intervenen el professorat, cada alumne de forma individual i els grups de classe. Quan es posa una nota a un grup, se li dona punts que ells mateixos es reparteixen segons el treball que han fet. La norma és que tots han de tenir notes diferents. Per exemple, si en un grup de 4 se’ls hi posa un 7,5, llavors els hi donem 7,5 x 4 = 30 punts perquè se'ls reparteixin com vulguin i nosaltres els hi posarem la nota que ells ens diguin. L’escala de valoració: Repartir punts l'hauran d'emplenar prèviament a la correcció, de forma que les notes siguin tan objectives com sigui possible.
Performance of D-criteria in isolating meteor showers from the sporadic background in an optical data set
Creators: name: Moorhead, Althea V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Separating meteor showers from the sporadic meteor background is critical for the study of both showers and the sporadic complex. The linkage of meteors to meteor showers, to parent bodies, and to other meteors is done using measures of orbital similarity. These measures often take the form of so-called D-parameters and are generally paired with some cutoff value within which two orbits are considered related. The appropriate cutoff value can depend on the size of the data-set (Southworth & Hawkins 1963), the sporadic contribution within the observed size range (Jopek 1995), or the inclination of the shower (Galligan 2001). If the goal is to minimize sporadic contamination of the extracted shower, the cutoff value should also reflect the strength of the shower compared to the local sporadic background. In this paper, we present a method for determining, on a per-shower basis, the orbital similarity cutoff value that corresponds to a chosen acceptable false-positive rate. This method also assists us in distinguishing which showers are significant within a set of data. We apply these methods to optical meteor observations from the NASA All-Sky and Southern Ontario Meteor Networks.
description: Accepted for publication in MNRAS
title: A ‘Sense of Recognition'
title: Negotiating naming practices and identities of Overseas Chinese students in transcultural social spaces
titleType: Subtitle
Creators: name: Guccini, Federica
Publisher: name: Göttingen : GISCA, Göttingen Institute for Social and Cultural Anthropology, Georg-August-Universität Göttingen
Year: 2017
Subjects: Naming practices
Chinese names
Chinese international names
Identity
Transculturality
Namensgebung
Chinesische Namen
Identität
Transkulturalität

description: Working with several anthropological theories of migration, identification and language, this paper aims to shed light on negotiations of Chinese naming practices in transcultural social spaces. Many Chinese youths studying abroad acquire international names in addition to their Chinese birth names that they use in different situations. The author argues that name choices are deliberate decisions, tied to a great amount of self-awareness and agency, as well as identification processes and positionalities in social space. Moreover, ‘Chineseness’ plays an important role even in the adoption of Chinese-international names, as inherently Chinese naming practices often contribute to the name choice. The research results show that names will be used contingently in different social spaces, and most often with the goal to create a ‘sense of recognition’ – the wish for an identity, or a multiplicity of identities, to be visible through the name.
description: Die vorliegende Arbeit soll mit mehreren ethnologischen Migrations-, Identifikations- und Sprachtheorien über Verhandlungen chinesischer Namensgebungspraxen in transkulturellen sozialen Räumen Aufschluss geben. Viele junge Chines_innen, die im Ausland studieren, legen sich zusätzlich zu ihrem chinesischen Geburtsnamen auch internationale Namen zu, die in unterschiedlichen Situationen Anwendung finden. Die Autorin argumentiert, dass die Namenswahl eine bedachte Entscheidung ist, die an Selbstwahrnehmung und Agency sowie an Identifikationsprozesse und Positionierungen im sozialen Raum geknüpft ist. Außerdem spielt „Chinesischsein“ eine wichtige Rolle in der Zulegung eines chinesisch-internationalen Namens, da chinesische Namensgebungspraxen oft zur Wahl des Namens beitragen. Die Forschungsergebnisse zeigen, dass Namen oft situationsbedingt in verschiedenen sozialen Räumen verwendet werden sowie mit dem Ziel, ein „Gefühl des Wiedererkennens“ herzustellen – den Wunsch, dass eine Identität, oder multiple Identitäten, durch den Namen sichtbar werden.
description: GISCA occasional paper ; 12
Rethink Stress Mechanisms
Creators: name: Handley-Miner, Isaac
name: Santoro, Erik
name: Smith, Eric
name: Crum, Alia
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Health Psychology
subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This study has two primary objectives: 1. Compare the durability of two different stress mindset interventions: (a) A meta-cognitive stress mindset intervention that explains that stress can be both positive and negative and that the way people view stress can, in part, determine whether they experience positive or negative effects from it (b) The stress mindset manipulation employed in Crum, Salovey, & Achor (2013), which only discusses the beneficial nature of stress Durability of participants’ stress mindsets will be assessed by the strength of their stress mindsets (i.e. the degree to which they hold a stress-is-enhancing mindset) over time and in the face of information about stress that contradicts a stress-is-enhancing mindset (i.e., information about the harmful effects of stress). 2. Test the metacognitive mechanisms that we hypothesize underlie differences in the durability of these two stress mindset interventions.
Combined influence of ectoine and salt: spectroscopic and numerical evidence for compensating effects on aqueous solutions
Creators: name: Hahn, Marc Benjamin
name: Uhlig, Frank
name: Solomun, Tihomir
name: Smiatek, Jens
name: Sturm, Heinz
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften

description: Ectoine is an important osmolyte, which allows microorganisms to survive in extreme environmental salinity. The hygroscopic effects of ectoine in pure water can be explained by a strong water binding behavior whereas a study on the effects of ectoine in salty solution is yet missing. We provide Raman spectroscopic evidence that the influence of ectoine and NaCl are opposing and completely independent of each other. The effect can be explained by the formation of strongly hydrogen-bonded water molecules around ectoine which compensate the influence of the salt on the water dynamics. The mechanism is corroborated by first principles calculations and broadens our understanding of zwitterionic osmolytes in aqueous solution. Our findings allow us to provide a possible explanation for the relatively high osmolyte concentrations in halotolerant bacteria.
title:   “Songs of the Underground” – Crafting a Unique Gaming Experience through Music
Creators: name: Franklin, Megan
Publisher: name: University of Kentucky Libraries
Year: 2023
Subjects: classificationCode: 6.4
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: The academic study of video game music, known as Ludomusicology, is a younger research area in the world of musicology, with the earliest works having been published in the late 80’s and early 90’s. Despite its young age, Ludomusicology is becoming a staple in the academic world, with scholars such as Melanie Fritsch, Andra Ivănescu, Michiel Kamp, Tim Summers, and Mark Sweeney dedicating their time to the subject. This thesis uses musical analysis as the basis of exploring the relationship between music and aspects of video game creation and player interaction. The case study for this project is the 2015 two-dimensional role-playing game Undertale, created and scored by Toby Fox. In positioning music as a part of the interactive ecologies of video games, I argue that the main strengths of the game lie in the connection of the music to the games worldbuilding, narrative storyline, and application of morality. Through analyzing the soundtrack in relation to how it interacts with these strengths, I demonstrate the undoubtable influence the music has as the main source of player interaction and overall experience with the game. Each chapter investigates the three different facets of gameplay and the inherent significance that music creates within the game.
description: © 2023 Megan Franklin
Recovering star formation histories: Integrated-light analyses vs stellar colour-magnitude diagrams
Creators: name: Ruiz-Lara, T.
name: Pérez, I.
name: Gallart, C.
name: Alloin, D.
name: Monelli, M.
name: Koleva, M.
name: Pompei, E.
name: Beasley, M.
name: Sánchez-Blázquez, P.
name: Florido, E.
name: Aparicio, A.
name: Fleurence, E.
name: Hardy, E.
name: Hidalgo, S.
name: Raimann, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Accurate star formation histories (SFHs) of galaxies are fundamental for understanding the build-up of their stellar content. However, the most accurate SFHs - those obtained from colour-magnitude diagrams (CMDs) of resolved stars reaching the oldest main sequence turnoffs (oMSTO) - are presently limited to a few systems in the Local Group. It is therefore crucial to determine the reliability and range of applicability of SFHs derived from integrated light spectroscopy, as this affects our understanding of unresolved galaxies from low to high redshift. To evaluate the reliability of current full spectral fitting techniques in deriving SFHs from integrated light spectroscopy by comparing SFHs from integrated spectra to those obtained from deep CMDs of resolved stars. We have obtained a high signal--to--noise (S/N $\sim$ 36.3 per Å) integrated spectrum of a field in the bar of the Large Magellanic Cloud (LMC) using EFOSC2 at the 3.6 meter telescope at La Silla Observatory. For this same field, resolved stellar data reaching the oMSTO are available. We have compared the star formation rate (SFR) as a function of time and the age-metallicity relation (AMR) obtained from the integrated spectrum using {\tt STECKMAP}, and the CMD using the IAC-star/MinnIAC/IAC-pop set of routines. For the sake of completeness we also use and discuss other synthesis codes ({\tt STARLIGHT} and {\tt ULySS}) to derive the SFR and AMR from the integrated LMC spectrum. We find very good agreement (average differences $\sim$ 4.1 $\%$) between the SFR(t) and the AMR obtained using {\tt STECKMAP} on the integrated light spectrum, and the CMD analysis. {\tt STECKMAP} minimizes the impact of the age-metallicity degeneracy and has the advantage of preferring smooth solutions to recover complex SFHs by means of a penalized $χ^2$. [abridged]
description: 23 pages, 24 figures. Accepted for publication in A&A (6 Sep 2015)
New approaches for the calibration of exchange-energy densities in local hybrid functionals
Creators: name: Maier, Toni M.
name: Haasler, Matthias
name: Arbuznikov, Alexey V.
name: Kaupp, Martin
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: The ambiguity of exchange-energy densities is a fundamental challenge for the development of local hybrid functionals, or of other functionals based on a local mixing of exchange-energy densities. In this work, a systematic construction of semi-local calibration functions (CFs) for adjusting the exchange-energy densities in local hybrid functionals is provided, which directly links a given CF to an underlying semi-local exchange functional, as well as to the second-order gradient expansion of the exchange hole. Using successive steps of integration by parts allows the derivation of correction terms of increasing order, resulting in more and more complicated but also more flexible CFs. We derive explicit first-and second-order CFs (pig1 and pig2) based on B88 generalized-gradient approximation (GGA) exchange, and a first-order CF (tpig1) based on t-dependent B98 meta-GGA exchange. We combine these CFs with different long-range damping functions and evaluate them for calibration of LDA, B88 GGA, and TPSS meta-GGA exchange-energy densities. Based on a minimization of unphysical nondynamical correlation contributions in three noble-gas dimer potential-energy curves, free parameters in the CFs are optimized, and performance of various approaches in the calibration of different exchange-energy densities is compared. Most notably, the second-order pig2 CF provides the largest flexibility with respect to the diffuseness of the damping function. This suggests that higher-order CFs based on the present integration-by-parts scheme may be particularly suitable for the flexible construction of local hybrid functionals.
Generalized Gaussian Mechanism for Differential Privacy
Creators: name: Liu, Fang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Assessment of disclosure risk is of paramount importance in the research and applications of data privacy techniques. The concept of differential privacy (DP) formalizes privacy in probabilistic terms and provides a robust concept for privacy protection without making assumptions about the background knowledge of adversaries. Practical applications of DP involve development of DP mechanisms to release results at a pre-specified privacy budget. In this paper, we generalize the widely used Laplace mechanism to the family of generalized Gaussian (GG) mechanism based on the $l_p$ global sensitivity of statistical queries. We explore the theoretical requirement for the GG mechanism to reach DP at prespecified privacy parameters, and investigate the connections and differences between the GG mechanism and the Exponential mechanism based on the GG distribution We also present a lower bound on the scale parameter of the Gaussian mechanism of $(ε,δ)$-probabilistic DP as a special case of the GG mechanism, and compare the statistical utility of the sanitized results in the tail probability and dispersion in the Gaussian and Laplace mechanisms. Lastly, we apply the GG mechanism in 3 experiments (the mildew, Czech, adult data), and compare the accuracy of sanitized results via the $l_1$ distance and Kullback-Leibler divergence and examine how sanitization affects the prediction power of a classifier constructed with the sanitized data in the adult experiment.
description: 23 pages; 12 figures
Fatal work accidents in Ecuador from 2014 to 2020: How the age of the deceased worker relates to the accidents’ temporal and geographical characteristics
Creators: name: Gómez-García, Antonio R.
name: Falconí, Ketty Paola Córdova
name: Merino-Salazar, Pamela
name: García-Arroyo, José
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
classificationCode: 111714
subject: Mental Health

description: This article analyzes the relationship between the age of male workers deceased in work accidents and temporal (year, month, day of the week, working shifts), geographic (provinces), and economic sector characteristics in which the accidents occurred in Ecuador between 2014 and 2020. Available data on fatal accidents from the Ecuadorian Social Security Institute (IESS) were collected. The results, which report both frequencies and proportions (rates), indicate that fatal accidents have decreased in the period, although the average age of deceased workers has increased. No significant differences were found regarding the month, day of the week, and work shift, nor in the frequency of accidents or the age of the deceased workers. However, differences were found in terms of geographical areas and sectors of economic activity. This study contributes to the literature as it is the first to analyze the temporal and geographical characteristics of fatal accidents about the age of the deceased worker.
Blood chimerism after stem cell transplantation
Creators: name: Dahlen, Alex
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: #SAP

description: This is a retrospective study to determine whether blood chimerism measurements made after stem cell transplantation are predictive of future graft failure or GVHD. The data has been collected already, we are registering an analysis plan prior to conducting the analysis.
Supplemental materials for preprint: INFECTION FATALITY RATE OF COVID19 – A LOGISTIC MODEL
Creators: name: DATTA, JAYDIP
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Statistics and Probability
subject: Physical Sciences and Mathematics
subject: Medicine and Health Sciences
subject: Biostatistics
subject: Best Fit Regression
subject: Case Fatality Rate
subject: Covid19
subject: Epidemology
subject: Infection Fatality Rate
subject: Logistic Model
subject: Pie Chart
subject: Sigmoid Regression
subject: Sigmoid Statistics

description: In this review one of the most important epidemiological parameter ie Infection fatality ratio ( 1 ) is correlated with age of the population through a sigmoid statistics of Logistic odel. The IFR is a special case of case fatality ratio ( CFR ) . The CFR ( 1 ) is termed as the number of deaths due to symptomatic Covid infection within entire population per unit time . The IFR is a special case of CFR where number of deaths to be cons-idered as total number of deaths due symp-tomatic as well as asymptomatic infection within the same population per unit time .The data analysis of IFR vs Age of the population shows a significant cor-relation ( r ) of Sigmoid model ( 3-4 ) .
Coupling a reactive potential with a harmonic approximation for atomistic simulations of material failure
Creators: name: Tejada, Ignacio
name: Brochard, Laurent
name: Lelievre, Tony
name: Stoltz, Gabriel
name: Legoll, Frederic
name: Cances, Eric
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Molecular dynamics (MD) simulations involving reactive potentials can be used to model material failure. The empirical potentials which are used in such simulations are able to adapt to the atomic environment, at the expense of a significantly higher computational cost than non-reactive potentials. However, during a simulation of failure, the reactive ability is needed only in some limited parts of the system, where bonds break or form and the atomic environment changes. Therefore, simpler non-reactive potentials can be used in the remainder of the system, provided that such potentials reproduce correctly the behavior of the reactive potentials in this region, and that seamless coupling is ensured at the interface between the reactive and non-reactive regions. In this article, we propose a methodology to combine a reactive potential with a non-reactive approximation thereof, made of a set of harmonic pair and angle interactions and whose parameters are adjusted to predict the same energy, geometry and Hessian in the ground state of the potential. We present a methodology to construct the non-reactive approximation of the reactive potential, and a way to couple these two potentials. We also propose a criterion for on-the-fly substitution of the reactive potential by its non-reactive approximation during a simulation. We illustrate the correctness of this hybrid technique for the case of MD simulation of failure in two-dimensional graphene originally modeled with REBO potential.
La mosca de la fruta como modelo en el campo de la Toxicología genética ¿sigue siendo vigente?
Creators: name: Castañeda-Sortibrán, América Nitxin
name: Rodríguez-Arnaiz, Rosario
name: Loyola, Claudia Monica flores
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: El ensayo SMART en las alas de Drosophila melanogaster se ha utilizado ampliamente para la evaluación genotóxica de un gran número de agentes químicos y físicos, con diferentes mecanismos de acción (Graf et. al., 1986; 1989). Además, dada su versatilidad también se ha aplicado para el estudio de los efectos antigenotóxicos y otros efectos moduladores de compuestos químicos y de mezclas complejas (Graf et. al, 1998). Las preguntas ¿Este bioensayo continúa siendo vigente? ¿Hay una tendencia favorable o desfavorable respecto a la publicación de artículos que lo utilizan? Debido a las enormes ventajas de Drosophila melanogaster, en este trabajo se investigó el estado actual de empleo de este bioensayo a través de un análisis bibliométrico el cual permitió no sólo responder las preguntas planteadas sino conocer cuáles son las principales instituciones/países en los que se está haciendo investigación con este bioensayo, en qué revistas se está publicando y en qué áreas del conocimiento