cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Healing Through Caring and Knowledge-Making in Everyday Food Practices Among LGBTQ+ Black, Indigenous, People of Colour
Creators: name: Wong, Elizabeth Grace
Publisher: name: Utah State University
Year: 2024

description: Three different models are used in this study to understand how everyday food practices carry healing potential through the interwoven process of caring and knowledge-making. Daily food practices reflect a mixture of tradition and modernity— borne out of our roots and our contexts. Anzaldúa’s (1987) Borderland Theory helps us understand how this mixture is made by people who straddle two borders or worlds and contest those confines. Chavez-Dueñas et al.’s (2019) HEART model names strengthening our cultural and familial traditions and roots as part of the broader processes of building cultural consciousness and connection, and engaging in collective healing. Finally, Galliher et al.’s (2017) Integrated Identity Development maps our identities and deep interconnectedness with one another, observed in daily food behaviours like cooking, eating, and sharing. This study uses food photos and interviews of 14 Black, Indigenous, People of Color (BIPOC) individuals, who are Lesbian, Gay, Bisexual, Transgender, Queer (LGBTQ+) from United States and Canada, to explore how they heal, learn, and make meaning of their food practices. Participants photographed food moments across two weeks, brought these photos during a semi-structured interview at four weeks, and responded to a follow-up after eight months.
Participants’ daily food moments reflected their personal, social, and cultural contexts. Individually, participants shared definitions of healing, and intentionality and gratitude as important wellness attitudes. They experienced caring and connection through social aspects of sharing and receiving food, particularly individualizing food to express care and connecting to a sense of togetherness. Participants connected to food on a cultural level by engaging with values such as resourcefulness and marking special occasions. Participants experienced food’s historical memory by connecting with ancestry, land, and the sacred, acknowledging oppression, and creating memories. Lastly, food is a landscape of contradictory notions of authenticity and hybridity, and an arena to develop new family traditions, given caregivers’ roles as knowledge keepers. Seven participants endorsed increased mindfulness around food practices and seven participants reported increased awareness and connection to their background, loved ones, and communities at the eight-month follow-up. Deepening our knowledges about our home and remaining flexible with tradition helps us keep intergenerational teachings.
Goodness-of-fit test for a logistic regression model fitted using survey sample data
Creators: name: Archer, Kellie J.
name: Lemeshow, Stanley
name: Archer, Kellie J.
name: Lemeshow, Stanley
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: svylogitgof
subject: goodness of fit
subject: survey design
subject: svy
subject: logistic regression
subject: logit

description: After a logistic regression model has been fitted, a global test of goodness of fit of the resulting model should be performed. A test that is commonly used to assess model fit is the Hosmer–Lemeshow test, which is available in Stata and most other statistical software programs. However, it is often of interest to fit a logistic regression model to sample survey data, such as data from the National Health Interview Survey or the National Health and Nutrition Examination Survey. Unfortunately, for such situations no goodness-of-fit testing procedures have been developed or implemented in available software. To address this problem, a Stata ado-command, svylogitgof, for estimating the F-adjusted mean residual test after svy: logit or svy: logistic estimation has been developed, and this paper describes its implementation.
Neural Network Solutions to Differential Equations in Non-Convex Domains: Solving the Electric Field in the Slit-Well Microfluidic Device
Creators: name: Magill, Martin
name: Nagel, Andrew M.
name: de Haan, Hendrick W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The neural network method of solving differential equations is used to approximate the electric potential and corresponding electric field in the slit-well microfluidic device. The device's geometry is non-convex, making this a challenging problem to solve using the neural network method. To validate the method, the neural network solutions are compared to a reference solution obtained using the finite element method. Additional metrics are presented that measure how well the neural networks recover important physical invariants that are not explicitly enforced during training: spatial symmetries and conservation of electric flux. Finally, as an application-specific test of validity, neural network electric fields are incorporated into particle simulations. Conveniently, the same loss functional used to train the neural networks also seems to provide a reliable estimator of the networks' true errors, as measured by any of the metrics considered here. In all metrics, deep neural networks significantly outperform shallow neural networks, even when normalized by computational cost. Altogether, the results suggest that the neural network method can reliably produce solutions of acceptable accuracy for use in subsequent physical computations, such as particle simulations.
description: 16 pages, 12 figures, 1 table
Decomposing inequality and obtaining marginal effects
Creators: name: Lopez-Feldman, Alejandro
name: Lopez-Feldman, Alejandro
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: descogini
subject: Gini
subject: Gini decomposition by income source
subject: inequality

description: This article describes a user-written command, descogini, that decomposes the Gini coefficient by income source and allows the calculation of the impact that a marginal change in a particular income source will have on inequality. descogini can be used with bootstrap to obtain standard errors and confidence intervals.
title: Righting Reproductive Wrongs: A Rhetorical Analysis of Special Topoi in Alberto Fernández’s Pro-Voluntary Interruption of Pregnancy Speeches
Creators: name: Crosby, Kymberlie
Publisher: name: Utah State University
Year: 2024

description: The reproductive rights movement argues that abortion rights are fundamental and necessary for women to enjoy their human rights. Politicians opposed to abortion rights around the world have made it clear that they plan to ban abortion both statewide and nationwide. A country that has proven to be successful in defending its reproductive rights is Argentina. In 2020, the Voluntary Interruption of Pregnancy Bill (Interrupción Voluntaria del Embarazo; IVE) democratically passed and legalized abortion throughout Argentina. Argentine President, Alberto Fernández, supported IVE and delivered a series of speeches over four years highlighting IVE and the progress that has succeeded each year. In this study, I critically analyze Fernández’s four pro-IVE speeches in search of the special topoi. I found that Fernández returned to stability, positive change, and collective health when arguing in favor of IVE.
Masters of magical powers : the Nāth Siddhas in the light of esoteric notions
Creators: name: Djurdjevic, Gordan
Publisher: name: University of British Columbia
Year: 2009

description: The Nāth Siddhas are North Indian yogis with tantric associations who claim guru Gorakhnath, their founding adept, to be an incarnation of the god Śiva. They strive to obtain the eternal body through a regime of yogic practices, which are aimed at transmutation of sexual fluids into elixir. The masters of this yoga are the siddhas, the possessors of the siddhis, which are occult powers that culminate in immortality and deification. The Sayings of Gorakh (Gorakh Bānī) is a collection of medieval Hindi poetry attributed to their founder. Scholars have noticed the importance of the occult in the lifestyle of the Naths. The category of the occult is, however, rarely given appropriate theoretical considerations. The academic discipline for the study of Western esotericism, conversely, directly engages the study of the occult but in a culturally and geographically limited setting. I demonstrate that there are heuristic advantages in applying the conceptual vocabulary and theoretical conclusions of esoteric studies to the investigation of tantra and the yoga of the Nāth Siddhas. To do so, I employ the model of esotericism developed by Antoine Faivre. I make evident that all its major elements are applicable to the theory and practice of the Nāths. The contextual focus of my exposition is The Sayings of Gorakh, partially translated by Shukdev Singh and myself. I apply the model of esotericism to the Nāths by making a threefold thematic division of the subject matter. I investigate their understanding of body and sexuality, speech and rhetoric, and mind and ideology. I propose that yoga is comparable to magic understood as a quest for power (where power is taken to be the sacred), based on the cultivation of imagination (which I compare to yogic meditation) and the principle of eros (the drive towards union). Other esoteric notions such as correspondences (between micro- and macrocosm), living nature (understood as śakti) and transmutation (what the yogis call the reversal, ul ţa sādhana) are shown to be equally essential in the yoga of the Nāths. I conclude suggesting that esotericism should be seen as a cross-cultural phenomenon.
Mata Matters: Creating new variables—sounds boring, isn't
Creators: name: Gould, William
name: Gould, William
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: Mata
subject: views
subject: Stata datasets

description: Mata is Stata’s matrix language. In the Mata Matters column, we show how Mata can be used interactively to solve problems and as a programming language to add new features to Stata. In this quarter’s column, we continue to explore the handling of Stata datasets in Mata and focus on creating new variables.
Kappa-symmetric Derivative Corrections to D-brane Dynamics
Creators: name: Drummond, J. M.
name: Kerstan, S. F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how the superembedding formalism can be applied to construct manifestly kappa-symmetric higher derivative corrections for the D9-brane. We also show that all correction terms appear at even powers of the fundamental length scale $l$. We explicitly construct the first potential correction, which corresponds to the kappa-symmetric version of the $\partial^4 F^4$, which one finds from the four-point amplitude of the open superstring.
description: 20 pages. Minor changes, added references
Microscopic modelling of doped manganites
Creators: name: Weisse, Alexander
name: Fehske, Holger
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Colossal magneto-resistance manganites are characterised by a complex interplay of charge, spin, orbital and lattice degrees of freedom. Formulating microscopic models for these compounds aims at meeting to conflicting objectives: sufficient simplification without excessive restrictions on the phase space. We give a detailed introduction to the electronic structure of manganites and derive a microscopic model for their low energy physics. Focussing on short range electron-lattice and spin-orbital correlations we supplement the modelling with numerical simulations.
description: 20 pages, 10 figs, accepted for publ. in New J. Phys., Focus issue on Orbital Physics
title: Whose Kurdistan? Class politics and Kurdish nationalism in the Middle East, 1918-2018
Creators: name: Degli Esposti, Nicola
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2020

description: This thesis is a study of the different trajectories of Kurdish nationalism in the Middle East. In the late 2010s – years of momentous advance for Kurdish forces in Turkey, Iraq, and Syria – Kurdish politics was deeply divided into competing movements pursuing irreconcilable projects for the future of the Kurdish nation. By investigating nationalism as embedded in social conflicts, this thesis identifies in the class basis of Kurdish movements and parties the main reason for their political differentiation and the development of competing national projects. After the defeat of the early Kurdish revolts in the 1920s and 1930s, Kurdish nationalism in Iraq and Turkey diverged along ideological lines due to the different social actors that led the respective national movements. In Iraq, the Kurdish national movement that emerged in the early 1960s was largely dominated by the tribal and landowning elite and primarily interested in preserving existing social hierarchies, while middle-class progressive nationalists were systematically sidelined. Conversely, in Turkey, as the Kurdish traditional elite had been co-opted into the Kemalist state in the 1950s, the nationalist struggle was resumed in the late 1970s by a generation of Kurdish students of peasant extraction that framed their project as an anti-colonial struggle and that violently opposed both Turkish security forces and Kurdish landlords. The thesis argues that these opposing trajectories of Kurdish nationalism were influenced by the evolving class structure of the newly established states of Turkey and Iraq, and by their location in the international state system and within global capitalism. The analysis of the social origins of competing ‘nationalisms’ provides a novel approach to the study of nationalism based on Historical Sociology and Political Economy and offers a materialist reading of the history of Kurdish politics.
title: Effects of uncertainty visualization on decision making and user confidence: an empirical Study
Creators: name: Bwisa, Metrine Muyoka
Publisher: name: TU Wien
Year: 2019
Subjects: subject: visual rhetoric
subject: carto-semiotics
subject: cartographic communication
subject: user responses

description: Uncertainty visualization methods have not yet been standardized as mapping techniques in cartography despite more than 20 years of research. To improve the current state of uncertainty visualization research, certain areas require more input, e.g. the user domain. Users differences and past experiences need to be analysed to understand how they relate with interpretation and understanding of uncertainty in specific fields. This thesis investigates the effects of uncertainty visualization on user decision making and confidence in the decisions made. Extensive literature review was done to identify uncertainty visualization techniques recommended for use in hazard maps. Two methods were selected, intrinsic color value and extrinsic texture overlay. These techniques were incorporated into fictional flood risk maps that were used in an empirical study undertaken by a Kenyan user group. The user group was divided into sub-groups based on profession (geography experts and novices), experience with uncertainty visualization and encounter with floods. Users were asked to decide to stay or leave a location, first when shown flood risk maps and then when given additional uncertainty information. The decisions and subsequent confidence levels reported by the sub-groups were analysed and compared. Based on the results, the Kenyan user group was able to understand and interpret uncertainty visualized by color value and texture overlay. Novices interpreted color value better than texture overlay. Experts performed better than novices in interpretation of texture overlay uncertainty representations, although the difference was not statistically significant. The difference in interpretation of uncertainty between users with experience in uncertainty visualization, and those that were inexperienced was also statistically insignificant. Inclusion of uncertainty caused changes in decision making and users confidence in their decisions. There were instances of increased confidence when uncertainty was introduced. Uncertainty visualization presents users with important information for consideration in decision making. This enables users to make informed decisions and has potential to increase the confidence of users in their decisions.
Application of Jurisdiction in Cases Involving Cyber Crime
Creators: name: NAKUL CHAUHAN
Publisher: name: Zenodo
Year: 2025

description: With the rapid rise of the internet and digital tools, cybercrime has grown from a few cases of hacking into a complicated global issue. Since the internet doesn’t have physical boundaries and is hard to control, traditional laws are struggling to keep up—especially when deciding which country has the right to deal with these crimes. This article breaks down how legal systems, especially India’s, are handling cybercrime jurisdiction. It covers how countries work together on such cases, key court rulings, and compares India’s system with those of other nations. Using real data and examples, it gives a complete picture of where we stand now and how we can do better.
title: Tourists vs. locals: mapping urban traces from social media
Creators: name: Deng, Yingwen
Publisher: name: TU Wien
Year: 2019
Subjects: subject: Geosocial media
subject: Natural Language Processing
subject: semantics extraction
subject: spatial clustering
subject: Kernel Density Estimation

description: Nowadays, the traces of humans are left all over the social media. Massive volunteered geographic information (VGI) contributed by social media users offers great opportunities to create new methods of understanding human activities.The generation and analysis of the digital footprints on social media have the potential to uncover the interesting spatial-temporal patters of how people interact with outer environment differently. The study provides an approach to differentiate the urban traces left by tourists from diverse origin countries and local citizens as different user groups based on the VGI obtained from a social media platform Flickr. Kernel denstiy estimation was used to analyze the distribution of Flickr photos. As a result, it has been proved that it is possible to map the urban traces of tourists and locals from social media data. In addition, the approach is useful to deduce the spatial-temporal characteristics, vague region definition, and the thematic interests of local citizens and tourists from different origins.
title: Metal Assisted O2-Dependent Carbon-Carbon Bond Cleavage of β-Diketones and Flavonols
Creators: name: Anderson, Stephen N.
Publisher: name: Utah State University
Year: 2024

description: Almost everything we interact with on a daily basis has been synthesized by chemists ranging from plastics, food preservatives, and medications. The diversity of synthetic molecules are achieved by the formation of new bonds between existing molecules and/or through the cleaving of bonds found in a molecule. There are uncountable amount of conditions reported to facilitate chemical reactions which all depend on the nature of molecules being used and the environment it is used in.
In recent years, more attention has been paid to identify chemical reactions that can use more environmentally favorable conditions and reduce the use of limited and expensive reagents. Specifically, certain carbon-carbon (C-C) bonds require harsh conditions and expensive transition metals to facilitate C-C bond cleavage. The Berreau lab has worked on understanding how to cleave C-C bonds in a family of molecules classified as β-diketones. More readily available copper, nickel and cobalt transition metal complexes were used in conjunction with environmentally friendly diatomic oxygen (O2) to facilitate the cleavage of a specific C-C bond in the β-diketone. A portion of the work presented herein builds upon the understanding of the nature of the metal center on the reaction between O2 and β-diketones.
Another family of molecules that are of interest to the Berreau group are flavonols. Flavonols are found in plants and vegetables that are consumed by humans and have beneficial health effects associated with them. Our lab has synthesized a π-extended flavonol (Flav-1) that has found application in biomedical applications owing to its ability to release carbon monoxide (CO) under specific conditions. While toxic and high concentrations, CO is an endogenously produced signaling molecule that has health benefits at low concentrations. Numerous studies have been performed to understand neutral Flav-1’s CO release properties in solution and in biological environments. Chapter three of this dissertation discusses the solution, toxicity and CO release properties of a Cu(II)-Flav-1 complex as it compares to neutral Flav-1. The last chapter investigates the thermal solution properties and O2 reactivity leading to CO release of the anionic form of Flav-1.
Short Term Variability of Evolved Massive Stars with TESS II: A New Class of Cool, Pulsating Supergiants
Creators: name: Dorn-Wallenstein, Trevor Z.
name: Levesque, Emily M.
name: Neugent, Kathryn F.
name: Davenport, James R. A.
name: Morris, Brett M.
name: Gootkin, Keyan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Massive stars briefly pass through the yellow supergiant (YSG) phase as they evolve redward across the HR diagram and expand into red supergiants (RSGs). Higher-mass stars pass through the YSG phase again as they evolve blueward after experiencing significant RSG mass loss. These post-RSG objects offer us a tantalizing glimpse into which stars end their lives as RSGs, and why. One telltale sign of a post-RSG object may be an instability to pulsations, depending on the star's interior structure. Here we report the discovery of five YSGs with pulsation periods faster than 1 day, found in a sample of 76 cool supergiants observed by \tess at two-minute cadence. These pulsating YSGs are concentrated in a HR diagram region not previously associated with pulsations; we conclude that this is a genuine new class of pulsating star, Fast Yellow Pulsating Supergiants (FYPS). For each FYPS, we extract frequencies via iterative prewhitening and conduct a time-frequency analysis. One FYPS has an extracted frequency that is split into a triplet, and the amplitude of that peak is modulated on the same timescale as the frequency spacing of the triplet; neither rotation nor binary effects are likely culprits. We discuss the evolutionary status of FYPS and conclude that they are candidate post-RSGs. All stars in our sample also show the same stochastic low-frequency variability (SLFV) found in hot OB stars and attributed to internal gravity waves. Finally, we find four $α$ Cygni variables in our sample, of which three are newly discovered.
description: 29 pages, 13 figures, 8 tables. Accepted for publication in ApJ. Comments welcome
Three-body correlations and finite-size effects in the Moore--Read states on a sphere
Creators: name: Wojs, Arkadiusz
name: Quinn, John J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two- and three-body correlations in partially filled degenerate fermion shells are studied numerically for various interactions between the particles. Three distinct correlation regimes are defined, depending on the short-range behavior of the pair pseudopotential. For pseudopotentials similar to those of electrons in the first excited Landau level, correlations at half-filling have a simple three-body form consisting of the maximum avoidance of the triplet state with the smallest relative angular momentum R_3=3. In analogy to the superharmonic criterion for Laughlin two-body correlations, their occurrence is related to the form of the three-body pseudopotential at short range. The spectra of a model three-body repulsion are calculated, and the zero-energy Moore--Read ground state, its +-e/4-charged quasiparticles, and the magnetoroton and pair-breaking bands are all identified. The quasiparticles are correctly described by a composite fermion model appropriate for Halperin's p-type pairing with Laughlin correlations between the pairs. However, the Moore--Read ground state, and specially its excitations, have small overlaps with the corresponding Coulomb eigenstates when calculated on a sphere. The reason lies in surface curvature which affects the form of pair pseudopotential for which the "R_3>3" three-body correlations occur. In finite systems, such pseudopotential must be slightly superharmonic at short range (different from Coulomb pseudopotential). However, the connection with the three-body pseudopotential is less size-dependent, suggesting that the Moore--Read state and its excitations are a more accurate description for experimental nu=5/2 states than could be expected from previous calculations.
description: 12 pages, 12 figures, submitted to PRB
Speaking Stata: Time of day
Creators: name: Cox, Nicholas J.
name: Cox, Nicholas J.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: ntimeofday
subject: stimeofday
subject: time of day
subject: time series
subject: calendar

description: Many problems in statistical analysis include time-of-day variables, but Stata offers limited support for time-of-day calculations. Support is needed for dates with times, times alone, and durations or timings. This article presents two new programs as general utilities to convert back and forth between string and numeric representations.
Review of Multilevel and Longitudinal Modeling Using Stata by Rabe-Hesketh and Skrondal
Creators: name: Wolfe, Rory
name: Wolfe, Rory
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: longitudinal
subject: multilevel
subject: gllamm
subject: generalized latent variable model

description: This article reviews Multilevel and Longitudinal Modeling Using Stata, by Rabe-Hesketh and Skrondal.
Violência obstétrica:  um desafio para saúde pública no Brasil
Creators: name: Leite, Tatiana Henriques
Publisher: name: Zenodo
Year: 2021

description: A prevalência de violência obstétrica (VO) tem variado entre 18,3% a 44,3%, segundo estudos de base populacional realizados no Brasil (1,2). Apesar da alta prevalência, há poucos estudos epidemiológicos nacionais abrangendo essa temática. Na última década, o interesse por essa forma de violência contra a mulher tem crescido devido, principalmente, ao movimento feminista e a grupos que tentam resgatar a fisiologia do parto e protagonismo da mulher nesse momento tão especial da vida. No entanto, muitas dificuldades em relação ao tema são impostas, como a falta de definição dos atos de VO, falta de consenso em relação ao termo utilizado, dificuldade de mensuração, poucas evidências sobre as consequências da VO na saúde materno-infantil e, por fim, falta de políticas públicas para coibir esses atos (3).

Entre muitas definições, a mais restrita define violência obstétrica como todos os atos de violência física, psicológica, sexual e negligência, perpetrada pela equipe de saúde contra a mulher e seu recém-nascido, em virtude da gestação, parto e nascimento, incluindo puerpério e situação de abortamento (4). No entanto, outras vertentes também consideram a discriminação contra a mulher e a utilização de procedimentos não embasados em evidências científicas, como episiotomia de rotina, cesariana eletiva, aminiotomia precoce, manobra de kristeller (pressão na parte superior do útero com o objetivo de facilitar a saída do bebê), entre outros (5). Há ainda definições mais abrangentes, que incluem comunicação ineficiente da equipe de saúde com a paciente, perda de autonomia e estrutura hospitalar inadequada (4). Na falta de consenso, muitos termos são utilizados, como “desrespeitos e abusos no nascimento”, “maus tratos no parto”, “violência institucional no parto”, entre outros (4).
title: Sequent-type calculi for variants of default logic
Creators: name: Pkhakadze, Sopo
Publisher: name: TU Wien
Year: 2019
Subjects: subject: Nonmonotonic Reasoning
subject: Sequent-Type Calculi
subject: Proof Theory
subject: Compuational Logic
subject: Artificial Intelligence

description: Sequenzenkalküle sind eine wichtige Beweismethode in der automatischen Deduktion. In dieser Arbeit führen wir solche Kalküle für zwei Versionen von Default Logik ein, nämlich einerseits für eine dreiwertige Form der Default Logik, eingeführt von Radzikowska, und der Disjunktiven Default Logik nach Gelfond, Lifschitz, Przymusinska und Truszczyński. Die erste Variante von Default Logik verwendet die bekannte dreiwertige Logik von Łukasiewicz als zugrundeliegenden logischen Apparat, während in der Disjunktiven Default Logik verallgemeinerte Default Regeln verwendet werden, die eine Auswahl von Konklusionen erlauben. Beide Kalküle wurden eingeführt um gewisse Probleme der üblichen Default Logik zu adressieren. Die Kalküle die wir beschreiben axiomatisieren das sogenannte Brave Reasoningund folgen der Methode von Bonatti, der solche Kalküle im Bereich des Nichtmonotonen Schließens postulierte. Ein besonderes Merkmal der Kalküle von Bonatti ist die Verwendung eines komplementären Kalküls der Ungültigkeit formalisiert und der für die Axiomatisierung der Konsistenzbedingungen von Defaults zuständig ist.
description: Sequent-type proof systems constitute an important and widely used class of calculi well-suited for analyzing proof search. In this thesis, we introduce sequential-type calculi for two variants of default logic, namely, on the one hand, for disjunctive default logic, due to Gelfond et al., And, on the other hand, for three-valued default logic, due to Radzikowska. Lukasiewicz's well-known three-valued logic as the underlying base logic. In particular, our calculus axiomatises brave reasoning for these versions of default logic, following the sequential method first introduced in the context of nonmonotonic reasoning by Bonatti, which employs a complementary calculus for axiomatising invalid formulas, taking care of expressing the consistency condition of defaults.
Central inclusive dijets production by double pomeron exchange. Comparison with the CDF results
Creators: name: Bzdak, Adam
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the Landshoff-Nachtmann model of the pomeron, rapidity and transverse momentum distributions of gluon jets produced by double pomeron exchange in pp collisions are calculated. The comparison with the CDF Run I results on the central inclusive dijets production cross sections is performed. We find the model to give correct order of magnitude for the measured cross sections.
description: 8 pages, 2 figures
Docking‐based approach for identification of mutations that disrupt binding between Bcl‐2 and Bax proteins: Inducing apoptosis in cancer cells
Creators: name: Raghav, Pawan
Publisher: name: figshare
Year: 2020
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Biological Techniques
subject: Biotechnology
subject: Cancer
subject: Cell Biology
subject: 60103 Cell Development, Proliferation and Death
subject: Computational Biology
subject: 60408 Genomics
subject: 60407 Genome Structure and Regulation
subject: Immunology
subject: FOS: Clinical medicine
subject: Molecular Biology

description: Background: Inducing apoptosis in cancer cells is an important step for the successful treatment of cancer patients. Bcl‐2 is an antiapoptotic protein which determines apoptosis by interacting with proapoptotic members of the Bcl‐2 family. Exome sequencing has identified Bcl‐2 and Bax missense mutations in more than 40 cancer types. However, a little information is available about the functional impact of each Bcl‐2 and Bax mutation on the pathogenesis of cancer. Methods: The mutational data from cancer tissues and cell lines were retrieved from the cBioPortal web resource. The 13 mutated Bcl‐2 and wild‐type Bax complexes with experimentally verified binding were identified from previous studies wherein, binding for all complexes was reportedly disrupted except one. Several protein–protein docking methods such as ClusPro, HDOCK, PatchDock, FireDock, InterEVDock2 and several mutation prediction methods such as PolyPhen‐2, SIFT, and OncoKB have been used to predict the effect of mutation to disrupt the binding between Bcl‐2 and Bax. The result obtained was compared with the known experimental data. Results: The protein–protein docking method, ClusPro, employed in the present study confirmed that the binding affinity of 11 out of 13 complexes decreases. Similarly, binding affinity computed for all the 10 wild‐type Bcl‐2 and mutated Bax complexes agreed with experimentally verified results. Conclusion: Several methods like PolyPhen‐2, SIFT, and OncoKB have been developed to predict cancer‐associated or deleterious mutations, but no method is available to predict apoptosis‐inducing mutations. Thus, in this study, we have examined the mutations in Bcl‐2 and Bax proteins that disrupt their binding, which is crucial for inducing apoptosis to eradicate cancer. This study suggests that protein–protein docking methods can play a significant role in the identification of hotspot mutations in Bcl‐2 or Bax that can disrupt their binding with wild‐type partner to induce apoptosis in cancer cells
Bundle gerbes for Chern-Simons and Wess-Zumino-Witten theories
Creators: name: Carey, Alan L.
name: Johnson, Stuart
name: Murray, Michael K.
name: Stevenson, Danny
name: Wang, Bai-Ling
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We develop the theory of Chern-Simons bundle 2-gerbes and multiplicative bundle gerbes associated to any principal $G$-bundle with connection and a class in $H^4(BG, \ZZ)$ for a compact semi-simple Lie group $G$. The Chern-Simons bundle 2-gerbe realises differential geometrically the Cheeger-Simons invariant. We apply these notions to refine the Dijkgraaf-Witten correspondence between three dimensional Chern-Simons functionals and Wess-Zumino-Witten models associated to the group $G$. We do this by introducing a lifting to the level of bundle gerbes of the natural map from $H^4(BG, \ZZ)$ to $H^3(G, \ZZ)$. The notion of a multiplicative bundle gerbe accounts geometrically for the subtleties in this correspondence for non-simply connected Lie groups. The implications for Wess-Zumino-Witten models are also discussed.
description: 35 pages, xy-pic diagrams, published version
Gaussian state entanglement witnessing through lossy compression
Creators: name: Klobus, Waldemar
name: Cieslinski, Pawel
name: Knips, Lukas
name: Kurzynski, Pawel
name: Laskowski, Wieslaw
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a method to witness entanglement between two continuous-variable systems in a Gaussian state. Its key ingredient is a local lossy state transfer from the original spatially separated systems onto two spatially separated qubits. The qubits are initially in a pure product state, therefore by detecting entanglement between the qubits we witness entanglement between the two original systems. This method greatly simplifies entanglement witnessing in complex systems.
description: 5 pages, 2 figures
Photon-graviton pair conversion
Creators: name: Kallberg, A.
name: Brodin, G.
name: Marklund, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the conversion of gravitons and photons as a four-wave mixing process. A nonlinear coupled systems of equations involving two gravitons and two photons is obtained, and the energy exchange between the different degrees of freedom is found. The scattering amplitudes are obtained, from which a crossection for incoherent processes can be found. An analytical example is given, and applications to the early Universe are discussed.
description: 5 pages, slightly modified as compared to v1, to appear in Class. Quantum Grav. as a Letter to the Editor
Interaction and dynamical binding of spin waves or excitons in quantum Hall systems
Creators: name: Wojs, Arkadiusz
name: Gladysiewicz, Anna
name: Wodzinski, Daniel
name: Quinn, John J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Interaction between spin waves (or excitons) moving in the lowest Landau level is studied using numerical diagonalization. Becuse of complicated statistics obeyed by these composite particles, their effective interaction is completely different from the dipole-dipole interaction predicted in the model of independent (bosonic) waves. In particular, spin waves moving in the same direction attract one another which leads to their dynamical binding. The interaction pseudopotentials V_[up,up](k) and V_[up,down](k) for two spin waves with equal wavevectors k and moving in the same or opposite directions have been calculated and shown to obey power laws V(k) ~ k^alpha at small k. A high value of alpha_[up,up]~4 explains the occurrence of linear bands in the spin excitation spectra of quantum Hall droplets.
description: 6 pages, 4 figures, submitted to PRB
Deuteron Compton Scattering: A Random Walk
Creators: name: Griesshammer, Harald W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this sketch, some recent developments in Compton scattering off the deuteron are reviewed. The strong energy-dependence of the scalar magnetic dipole polarisability β_M1 turns out to be crucial to understand the data from Saskatoon at 94 MeV. Chiral Effective Field Theory is used to extract the static iso-scalar dipole polarisabilities as \barα^s=12.6\pm1.4_{stat}\pm1.0_{wavefu} and \barβ^s=2.3\pm1.7_{stat}\pm0.8_{wavefu}, in units of 10^{-4} fm^3. Therefore, proton and neutron polarisabilities are identical within error bars. For details and a better list of references, consult the given references.
description: 8 pages LaTeX2e with 6 figures, using graphicx and aipproc. Plenary talk given at the 19th European Conference on Few-Body Problems in Physics, Groningen (The Netherlands), 23rd - 27th August 2004. To be published in the proceedings
Physical Variables of $d=3$ Maxwell-Chern-Simons Theory by Symplectic Projector Method
Creators: name: Helayel-Neto, J. A.
name: Santos, M. A.
name: Vancea, I. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Symplectic Projector Method is applied to derive the local physical degrees of freedom and the physical Hamiltonian of the Maxwell-Chern-Simons theory in $d=1+2$. The results agree with the ones obtained in the literature through different approaches.
description: 5 pages, LaTEX file. Minor typos corrected
Activity of (6478) Gault during January 13 - March 28, 2019
Creators: name: Ivanova, Oleksandra
name: Skorov, Yuri
name: Luk'yanyk, Igor
name: Tomko, Dušan
name: Husárik, Marek
name: Blum, Jürgen
name: Egorov, Oleg
name: Voziakova, Olga
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the results of photometric observations of active asteroid (6478) Gault performed at heliocentric distances from 2.46 to 2.30 au and geocentric distances from 1.79 to 1.42 au between January 15 and March 28, 2019. Observations were carried out at the 2.5-m telescope of SAI MSU (CMO) on January 15, 2019 and at the 1.3-m and 0.61-m telescopes (SPb) on February 6 and March 28, 2019, respectively. The direct images of the asteroid were obtained with the broad-band B, V and R filters. Comet-like structures were detected at all observation dates. Colour maps were built and colour variations along the tail for the observation made on January 15, 2019 were analyzed. The $Afρ$ was calculated for the R filter, The evaluated value varies from 47 to 32 cm for the period from January to the end of March, 2019. The rotational period of the body is estimated from the light curve by different methods and is about 1.79 hr. Possible mechanisms of triggering Gault's activity are discussed.
description: 30 pages, 3 table, 10 figures
Pionic atoms probing pi-NN resonances
Creators: name: Krivoruchenko, M. I.
name: Martemyanov, B. V.
name: Faessler, Amand
name: Fuchs, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The pion optical potential generated by the hypothetical pi-NN-coupled NN-decoupled dibaryon resonance d'(2065) is calculated to the lowest order in nuclear matter density. The contribution to the pion optical potential is found to be within the empirical errors, so the d'(2065) existence currently does not contradict to the observed properties of the pi-nucleus bound states. Future progress in the pionic X-ray spectroscopy can reveal contributions of pi-NN resonances to energy levels and widths of the pionic atoms.
description: 3 pages REVTEX, 1 ps figure
Calculation of multivariate normal probabilities by simulation, with applications to maximum simulated likelihood estimation
Creators: name: Cappellari, Lorenzo
name: Jenkins, Stephen P.
name: Cappellari, Lorenzo
name: Jenkins, Stephen P.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: mdraws
subject: egen function mvnp()
subject: simulation estimation
subject: maximum simulated likelihood
subject: multivariate probit
subject: Halton sequences
subject: pseudorandom sequences
subject: multivariate normal
subject: GHK simulator

description: We discuss methods for calculating multivariate normal probabilities by simulation and two new Stata programs for this purpose: mdraws for deriving draws from the standard uniform density using either Halton or pseudorandom sequences, and an egen function, mvnp(), for calculating the probabilities themselves. Several illustrations show how the programs may be used for maximum simulated likelihood estimation.
How Many Suppliers We Must Have?
Creators: name: Siddiqui, Zeeshan Noor
Publisher: name: figshare
Year: 2020
Subjects: subject: 150309 Logistics and Supply Chain Management
subject: FOS: Economics and business

description: Vendor Management (VM) is a wholesome and well established concept in SCM. There are two (2) distinct approaches to view Supplier Relationship Management (SRM): (1) Fort (American) model, and (2) Toyota (Japanese) model. We are historically more close to EU and the US thus, our approach towards Supplier Relationship Management is not much different (both models will be discussed in subsequent papers under ‘Loud Thinking’). This first paper in the series seeks to alter the perspective of public procurement professionals (hereafter, PPP) on the issues of professional importance by questioning our approach towards preposition. Vendor Management Strategies / Supplier Relationship Management (SRM) are presented for Public Procurement (PP).
The role of integrin-linked kinase in glioblastoma multiforme and its potential for targeted therapy
Creators: name: Edwards, Lincoln A.
Publisher: name: University of British Columbia
Year: 2009

description: Integrin-linked kinase (ILK) is a serine/threonine kinase that has been shown to be involved or implicated in diverse disease processes ranging from Alzheimer's disease to cancer. The involvement of ILK in cancer has been associated with its uncontrolled activation within cells due to the loss of its regulator, the tumor suppressor gene PTEN. Cellular events are tightly regulated by the actions of PTEN which can inhibit ILK activity. The focus of my thesis is to evaluate the role of ILK in glioblastoma cell lines and in vivo models derived from these cell lines. Three key questions were addressed: (i) Does ILK play a role in cancer progression in PTEN null glioblastoma cell lines? (Chapter 3) (ii) Given that combination therapy will provide optimal therapeutic results, what rationally chosen agents could be used in combination with an ILK inhibitor? (Chapters 4) And (iii) Is ILK a possible therapeutic target for the treatment of glioblastoma multiforme? (Chapters 5). It was hypothesizd that ILK is constitutively active in glioblastoma multiforme due to the high frequency of PTEN loss within this cancer and that targeting ILK alone and in combination would result in either tumor growth delay or cell death. Results from Chapter 3 indicate that ILK activity is elevated with loss of PTEN and verify ILKs role as an intermediate between PTEN regulation and PKB/Akt activation in glioblastoma cancer cells. Targeting ILK with an antisense oligonucleotide in vivo resulted in a significant tumor growth delay or stable disease (≤7% increase compared to a 100% increase of the saline treated control). Chapter 4 reveals that targeting ILK in combination with one other therapeutic agent (i.e. U0126) not only resulted in better therapeutic activity but that a synergistic combination could be achieved. Chapter 5 examined the effect of ILK targeting on tumor growth and the tumor micro-environment, suggesting that ILK inhibition may have antiangiogenic, chemo and radiosensitizing effects. These studies demonstrated the potential of ILK targeting in glioblastoma cancer, an important finding, given that this target had not been previously explored in GBM progression. In addition, the results offer key insights into the anti-tumor effects of targeting ILK alone and in combination as well as its role in the cell signaling pathogenesis in GBMs. These results also lay the foundation for pre-clinical data supporting the further exploration of ILK targeting for clinical use.
Large-Range Frequency Tuning of a Narrow-Linewidth Quantum Emitter
Creators: name: Zhai, Liang
name: Löbl, Matthias C.
name: Jahn, Jan-Philipp
name: Huo, Yongheng
name: Treutlein, Philipp
name: Schmidt, Oliver G.
name: Rastelli, Armando
name: Warburton, Richard J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A hybrid system of a semiconductor quantum dot single photon source and a rubidium quantum memory represents a promising architecture for future photonic quantum repeaters. One of the key challenges lies in matching the emission frequency of quantum dots with the transition frequency of rubidium atoms while preserving the relevant emission properties. Here, we demonstrate the bidirectional frequency-tuning of the emission from a narrow-linewidth (close-to-transform-limited) quantum dot. The frequency tuning is based on a piezoelectric strain-amplification device, which can apply significant stress to thick bulk samples. The induced strain shifts the emission frequency of the quantum dot over a total range of $1.15\ \text{THz}$, about three orders of magnitude larger than its linewidth. Throughout the whole tuning process, both the spectral properties of the quantum dot and its single-photon emission characteristics are preserved. Our results show that external stress can be used as a promising tool for reversible frequency tuning of high-quality quantum dots and pave the wave towards the realisation of a quantum dot -- rubidium atoms interface for quantum networking.
description: 6 pages, 3 figures