cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Homomorphisms between different quantum toroidal and affine Yangian algebras
Creators: name: Bershtein, Mikhail
name: Tsymbaliuk, Alexander
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: This paper concerns the relation between the quantum toroidal algebras and the affine Yangians of $\mathfrak{sl}_n$, denoted by $\mathcal{U}^{(n)}_{q_1,q_2,q_3}$ and $\mathcal{Y}^{(n)}_{h_1,h_2,h_3}$, respectively. Our motivation arises from the milestone work of Gautam and Toledano Laredo, where a similar relation between the quantum loop algebra $U_q(L \mathfrak{g})$ and the Yangian $Y_h(\mathfrak{g})$ has been established by constructing an isomorphism of $\mathbb{C}[[\hbar]]$-algebras $Φ:\widehat{U}_{\exp(\hbar)}(L\mathfrak{g})\to \widehat{Y}_\hbar(\mathfrak{g})$ (with $\ \widehat{}\ $ standing for the appropriate completions). These two completions model the behavior of the algebras in the formal neighborhood of $h=0$. The same construction can be applied to the toroidal setting with $q_i=\exp(\hbar_i)$ for $i=1,2,3$. In the current paper, we are interested in the more general relation: $\mathrm{q}_1=ω_{mn}e^{h_1/m}, \mathrm{q}_2=e^{h_2/m}, \mathrm{q}_3=ω_{mn}^{-1}e^{h_3/m}$, where $m,n\in \mathbb{N}$ and $ω_{mn}$ is an $mn$-th root of $1$. Assuming $ω_{mn}^m$ is a primitive $n$-th root of unity, we construct a homomorphism $Φ^{ω_{mn}}_{m,n}$ from the completion of the formal version of $\mathcal{U}^{(m)}_{\mathrm{q}_1,\mathrm{q}_2,\mathrm{q}_3}$ to the completion of the formal version of $\mathcal{Y}^{(mn)}_{h_1/mn,h_2/mn,h_3/mn}$. We propose two proofs of this result: (1) by constructing the compatible isomorphism between the faithful representations of the algebras; (2) by combining the direct verification of Gautam and Toledano Laredo for the classical setting with the shuffle approach.
description: v2: 30 pages, significant modifications from the previous version, minor mistakes corrected. v3: Published version, 30 pages, minor corrections, some details added
Multiple solutions for a Kirchhoff-type equation with general nonlinearity
Creators: name: Lu, Sheng-Sen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J20, 35J60

description: This paper is devoted to the study of the following autonomous Kirchhoff-type equation $$-M\left(\int_{\mathbb{R}^N}|\nabla{u}|^2\right)Δ{u}= f(u),~~~~u\in H^1(\mathbb{R}^N),$$ where $M$ is a continuous non-degenerate function and $N\geq2$. Under suitable additional conditions on $M$ and general Berestycki-Lions type assumptions on the nonlinearity $f$, we establish several existence results of multiple solutions by variational methods, which are also naturally interpreted from a non-variational point of view.
description: 18 pages, no figures. Minor modifications. Accepted for publication by Advances in Nonlinear Analysis and available online now as ahead of print
Software Cost Estimation Using Open Source GitHub Repositories
Creators: name: Mrvar, Gal
Publisher: name: Zenodo
Year: 2023
Subjects: Software Cost Estimation
Systematic Literature Review
Dataset
Code Repository
Case Study
Open Source Projects
GitHub

description: This repository contains the outcomes and findings of a master's thesis research conducted at Utrecht University, centered on the topic of software cost estimation. The principal objective was to gather information from open-source repositories on GitHub and utilize this data to predict the cost of software projects. The published materials encompass four distinct elements: A comprehensive Systematic Literature Review (SLR), containing findings across four primary phases of the research. The Dataset, created over the course of the research, includes information extracted from GitHub repositories. The Code Repository provides the software used to extract data from open-source GitHub projects, along with the machine learning algorithms employed during our research. A detailed Case Study and Experiment data, capturing the empirical investigations undertaken and their subsequent findings.
Glauber modeling of high-energy nuclear collisions at sub-nucleon level
Creators: name: Loizides, Constantin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Glauber models based on nucleon--nucleon interactions are commonly used to characterize the initial state in high-energy nuclear collisions, and the dependence of its properties on impact parameter or number of participating nucleons. In this paper, an extension to the Glauber model is presented, which accounts for an arbitrary number of effective sub-nucleon degrees of freedom, or active constituents, in the nucleons. Properties of the initial state, such as the number of constituent participants and collisions, as well as eccentricity and triangularity, are calculated and systematically compared for different assumptions of how to distribute the sub-nuclear degrees of freedom and for various collision systems. It is demonstrated that at high collision energy the number of produced particles scales with an average number of sub-nucleon degrees of freedom of between $3$ and $5$. The source codes for the constituent Monte Carlo Glauber extension, as well as for the calculation of the overlap area and participant density in a standard Glauber model, are made publicly available.
description: 11 pages, 20 captioned figures, 4 tables, code available at http://tglaubermc.hepforge.org/svn/branches/tools/
A systematic review of evidence focused on physical activity and sport programs and their impact on mental health and social and emotional wellbeing of young Aboriginal and Torres Strait Islanders.
Creators: name: English, Madeleine
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences

description: This systematic review aims to address the gaps in prior literature through 1) identifying and describing existing evidence of the impact of sport and physical activity programs on mental health and social and emotional wellbeing outcomes among young, Aboriginal and Torres Strait Islanders and 2) highlighting the limitations of current practice. This review will be the first to synthesise the available evidence on mental health and social and emotional wellbeing promotion through sport and physical activity programs, specifically within a young, Aboriginal and Torres Strait Islander population. As such, the results of this review have the potential to make a significant contribution to Indigenous Australian health promotion, informing future practice, as well as, program development and evaluation in an especially under serviced population.
Robust hyperparameter estimation protects against hypervariable genes and improves power to detect differential expression
Creators: name: Phipson, Belinda
name: Lee, Stanley
name: Majewski, Ian J.
name: Alexander, Warren S.
name: Smyth, Gordon K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Applications (stat.AP)
subject: Genomics (q-bio.GN)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences
subject: 62F35 (primary), 62P10 (secondary)

description: One of the most common analysis tasks in genomic research is to identify genes that are differentially expressed (DE) between experimental conditions. Empirical Bayes (EB) statistical tests using moderated genewise variances have been very effective for this purpose, especially when the number of biological replicate samples is small. The EB procedures can however be heavily influenced by a small number of genes with very large or very small variances. This article improves the differential expression tests by robustifying the hyperparameter estimation procedure. The robust procedure has the effect of decreasing the informativeness of the prior distribution for outlier genes while increasing its informativeness for other genes. This effect has the double benefit of reducing the chance that hypervariable genes will be spuriously identified as DE while increasing statistical power for the main body of genes. The robust EB algorithm is fast and numerically stable. The procedure allows exact small-sample null distributions for the test statistics and reduces exactly to the original EB procedure when no outlier genes are present. Simulations show that the robustified tests have similar performance to the original tests in the absence of outlier genes but have greater power and robustness when outliers are present. The article includes case studies for which the robust method correctly identifies and downweights genes associated with hidden covariates and detects more genes likely to be scientifically relevant to the experimental conditions. The new procedure is implemented in the limma software package freely available from the Bioconductor repository.
description: 23 pages, 4 figures
Educator Evaluation and Student Skill Development
Creators: name: Shakeel, Ayman
Publisher: name: University of Illinois at Chicago
Year: 2023

description: Educators play a crucial role in student skill development; hence this dissertation explores incentive-driven public policies and understands the effect that educators have on students. The first chapter estimates relative contributions of the subjective (supervisor observations and student surveys) versus objective (value-added) evaluation measures in capturing teacher effectiveness at increasing cognitive and non-cognitive skills. I use data from a large urban public school district where teacher compensation is tied to the evaluation measures. Estimates reveal that the subjective measures provide information about teacher effects on short-run achievement and absences as well as long-run achievement in ways that value-added does not. However, value-added remains the most significantly related to long-term achievement and absences along with short-term achievement. Chapter 2 uses a regression discontinuity design to investigate the effect of categorical evaluation ratings on principal composition and future school leadership effectiveness. I find that principals with rating scores that place them just below the higher rating cutoff are more likely to exit the district and less likely to be promoted. However, there is no evidence of a change in future leadership productivity in schools where principals fall below the cutoff. Principal transitions around the rating boundary may be driven by changes in motivation, employer demand, or salary. Exploiting the fact that crossing the higher rating cutoff does not result in a salary change for all principals, I document that the transition effects are concentrated within the group that does experience a salary change. Lastly, Chapter 3 uses administrative data from Texas to estimate middle school principal effects on cognitive and non-cognitive skill development and the relationships between these skills and attachment to post-secondary schooling, work, and engagement with the criminal justice system. Estimates show highly significant effects of principals on the probabilities of future engagement with the criminal justice system, attending and persisting in college, and working. The impacts on the probability of engagement with the criminal justice system come through effects on the development of non-cognitive skills, while impacts on post-secondary schooling and work come through effects on the development of both cognitive and non-cognitive skills.
Community catch-up: Building active communities around research infrastructure
Creators: name: Heil, Katharina F
Publisher: name: F1000 Research Limited
Year: 2023

description: Community catch-up: Building active communities around research infrastructure
 Dr Katharina F Heil is the Programme Manager Communities & Training for the European life sciences infrastructure that brings together scientists from 23 countries and over 250 research institutes, ELIXIR. Katharina works to ensure alignment of ELIXIR Communities and Platforms, to ultimately bring together life science resources across Europe.
 Forming a single infrastructure that connects so many individuals and organisations is a complicated task.
 The slides show some of ELIXIR's approach around community and community building.
 Different questions and thoughts/reflections are being covered, such as: What makes a successful research infrastructure community? What are the roles engagement and training play in building communities of users and developers around research infrastructures? What opportunities exist to maximise collaboration between organisations to foster engagement with researcher and developer communities? What future community and training opportunities excite you?
Technical Privacy Metrics: a Systematic Survey
Creators: name: Wagner, Isabel
name: Eckhoff, David
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: The goal of privacy metrics is to measure the degree of privacy enjoyed by users in a system and the amount of protection offered by privacy-enhancing technologies. In this way, privacy metrics contribute to improving user privacy in the digital world. The diversity and complexity of privacy metrics in the literature makes an informed choice of metrics challenging. As a result, instead of using existing metrics, new metrics are proposed frequently, and privacy studies are often incomparable. In this survey we alleviate these problems by structuring the landscape of privacy metrics. To this end, we explain and discuss a selection of over eighty privacy metrics and introduce categorizations based on the aspect of privacy they measure, their required inputs, and the type of data that needs protection. In addition, we present a method on how to choose privacy metrics based on nine questions that help identify the right privacy metrics for a given scenario, and highlight topics where additional work on privacy metrics is needed. Our survey spans multiple privacy domains and can be understood as a general framework for privacy measurement.
Alleghanian Plutonism in the Eastern Blue Ridge Province of the Southern Appalachians: Origin and Tectonic Setting
Creators: name: Winchester, Cristine
Publisher: name: University of North Carolina at Chapel Hill
Year: 2013

description: The Alleghanian orogeny was caused by the closing of the Theic ocean basin and subsequent collision of Gondwana with Laurentia. The orientation of the subducted Theic oceanic lithosphere is unknown but may be recorded in Carboniferous magmatism recently discovered in the southern Appalachians. The four Alleghanian plutons located in the eastern Blue Ridge are the oldest of the Alleghanian plutons and predate the estimated collision ca. 330 Ma. These plutons have εNd values in between published values from the Grenville basement and the depleted mantle evolution line (~7.5 at 335 Ma), indicating that they derived from melting of juvenile and crustal sources. Mantle model and xenocrystic zircon ages from the EBR plutons are coeval with Grenville orogenesis suggesting that the crustal component was Grenville basement. Based on the zircon dates combined with the geochemical data, the EBR plutons were likely emplaced when the Theic oceanic lithosphere was subducting beneath Laurentia.
Bringing FAIR RDM to researchers at scale
Creators: name: Heil, Katharina F
name: Coppens, Frederik
Publisher: name: F1000 Research Limited
Year: 2023

description: Webinar presentation:
 A deep dive into ELIXIR’s FAIR RDM Ecosystem, with a specific focus on the following three resources: ELIXIR RDMkit, a toolkit for the Life Sciences community that includes training materials, standards, and databases to guide data management planning and teach FAIR data practices. It is based on the various steps of the data lifecycle, and its primary focus is to provide guidance on the Research Data Management support landscape. FAIR Cookbook, an open, live resource for the Life Sciences with recipes that cover the operation steps of FAIR data management. As a web resource that includes a collection of recipes on the FAIR components, the infrastructure needed, and a set of applied examples in the Life Sciences, it offers a view into the technical aspects of FAIR data management. The primary objective of the FAIR Cookbook is to develop and disseminate guidance and processes needed to make and keep data FAIR in the Life Sciences. Data Stewardship Wizard, a publicly available open-source tool to collaboratively compose data management plans through smart and customisable questionnaires with FAIRness evaluation. It helps to create, plan, collaborate, and bring data management plans to life as a tool trusted by thousands of people worldwide, ranging from data management pioneers to international research institutes. The core focus is on tactical coordination allowing the implementation of data-quality metrics and other requirements ensuring good data management with the ultimate goal of providing high-quality data that is easily accessible in a consistent manner.
MinSizeML: An R package to estimate the minimum sample size in supervised learning for classification
Creators: name: Castelo, Guillermo Prol
name: Mosquera, Jose Luis
Publisher: name: F1000 Research Limited
Year: 2023

description: Motivation One of the issues that should deserve greater attention in biomedical/clinical sciences research is the sampling process. To clearly define the target population, select the sampling frame, choose the sampling method, collect the data and assess the response rate are some of the steps required to conduct this process. However, the sampling process and downstream data analyses costs time, effort, money and of course carbon emissions [1], and all of these issues are based on the sample size estimate.
 The sample size is the number of observations (e.g. participants, cells, units, etc.) that will be required to include in the study to answer the research hypothesis. If this value is too small, then it may not be able to answer the study question. But, if the number is too large, it may require substantial resources in terms of money, time and effort. Therefore, to find an optimum sample size is an essential aspect of any research [2].
 Hypothesis While there are well known principles or considerations for sample size calculation in biomedical studies considering classical basic statistical approaches ([3] and [2]), the complexity and difficulty of calculating an appropriate sample size requires broad statistical knowledge, and well trained professionals in programming skills ([4] and [5]). Moreover, this task is not straight-forward when using machine learning approaches [6].
 Objective In this work we have implemented an R package called MinSizeML based on the Figueroa et al. approach [7], where we have considered four supervised learning methods for classification: kNN, logistic regression, naive Bayes, and random forest. To assess the goodness of the classification, we fit a learning curve where the independent variable is the training set size, and the dependent variable is a metric, accuracy or Cohen’s κ, obtained after each training step. The user defines a desired value for the metric and thus the corresponding minimum training size is returned from the learning curve.
 Availability MinSizeML is available on GitHub https://github.com/gpcastelo/MinSizeML
The Zero Active Mass Condition in Friedmann-Robertson-Walker Cosmologies
Creators: name: Melia, Fulvio
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Many cosmological measurements today suggest that the Universe is expanding at a constant rate. This is inferred from the observed age versus redshift relationship and various distance indicators, all of which point to a cosmic equation of state (EoS) p=-rho/3, where rho and p are, respectively, the total energy density and pressure of the cosmic fluid. It has recently been shown that this result is not a coincidence and simply confirms the fact that the symmetries in the Friedmann-Robertson-Walker (FRW) metric appear to be viable only for a medium with zero active mass, i.e., rho+3p=0. In their latest paper, however, Kim, Lasenby and Hobson have provided what they believe to be a counter argument to this conclusion. Here, we show that these authors are merely repeating the conventional mistake of incorrectly placing the observer simultaneously in a comoving frame, where the lapse function g_tt is coordinate dependent when rho+3p is not 0, and a supposedly different, free-falling frame, in which g_tt=1, implying no time dilation. We demonstrate that the Hubble flow is not inertial when rho+3p is not 0, so the comoving frame is generally not in free fall, even though in FRW, the comoving and free-falling frames are supposed to be identical at every spacetime point. So this confusion of frames not only constitutes an inconsistency with the fundamental tenets of general relativity but, additionally, there is no possibility of using a gauge transformation to select a set of coordinates for which g_tt=1 when rho+3p is not 0.
description: 9 Pages. Accepted for publication in Frontiers of Physics
Focal Radius, Rigidity, and Lower Curvature Bounds
Creators: name: Guijarro, Luis
name: Wilhelm, Frederick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C20

description: We show that the focal radius of any submanifold $N$ of positive dimension in a manifold $M$ with sectional curvature greater than or equal to $1$ does not exceed $\frac{π}{2}.$ In the case of equality, we show that $N$ is totally geodesic in $M$ and the universal cover of $M$ is isometric to a sphere or a projective space with their standard metrics, provided $N$ is closed. Our results also hold for $k^{th}$--intermediate Ricci curvature, provided the submanifold has dimension $\geq k.$ Thus in a manifold with Ricci curvature $\geq n-1,$ all hypersurfaces have focal radius $\leq \frac{π}{2},$ and space forms are the only such manifolds where equality can occur, if the submanifold is closed. To prove these results, we develop a new comparison lemma for Jacobi fields that exploits Wilking's transverse Jacobi equation.
description: The first part of the paper has been rewritten to simplify the proofs of the comparison theory for Wilking's transverse Jacobi equation. We have also corrected minor typos and reordered some of the material to simplify the reading
Book of Abstract Conference Proceeding: The 7th International Conference on Interdisciplinary Business, Economy, Management, and Social Studies (7th IBEMS)
Creators: name: Research Synergy Foundation
Publisher: name: F1000 Research Limited
Year: 2023

description: Proceedings of The 7th International Conference on Interdisciplinary Business, Economy, Management, and Social Studies (7th IBEMS) is a scientific output from an international conference program by Research Synergy Foundation. 7th IBEMS provides an interdisciplinary platform for gathering scholars, researchers, and practitioners to disseminate ongoing research related to Interdisciplinary Business, Economy, Management, and Social Studies. The Proceeding covers theoretical practices and their implications in Business, Economy, Sustainability Studies, Management, and Education. The expected contribution of this Proceeding is to give the latest research, ideas, and insights on Interdisciplinary Business, Economy, Management, and Social Studies. Moreover, this conference also participated and was attended by scholars from various countries, such as Indonesia, Philippines, Malaysia, Pakistan, Netherlands, Taiwan, India, Bangladesh, Iran, Egypt, Sri Lanka, China, Nigeria, Oman, Uzbekistan, and many more. Please visit https://www.researchsynergy.org/post-event-7th-ibems/ for more information about the conference.
Computer programming for language students - The Hangman game from scratch
Creators: name: Alexandre Mazuir, Georgina Clarkson
Publisher: name: Zenodo
Year: 2023
Subjects: python for language students, the hangman game, NLTK library, text processing with python

description: The presentation is an overview of code used for The Hangman game made by Alexandre Mazuir, Georgina Clarkson, Luca Giordano, Lucia Neuhold, Nikola Pušičić, and Victor Chamot. Under the guidance of Andrew Attard and Kurt Abela, six students from different universities went through the basics of Python programing language and fulfilled the task of making a functional hangman game. Following the presentation, we eagerly present to you the final game edited by Gina Clarkson to make playing even more fun! You may start it by downloading both the Main loop.ipynb and wiki_corpus.txt and uploading them to Jupiter Notebook (Anaconda 3). Enjoy! :)
Diphoton decay for a 750 GeV scalar boson in a $SU(6)\otimes U(1)_{X}$ model
Creators: name: Mantilla, S. F.
name: Martinez, R.
name: Ochoa, F.
name: Sierra, C. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a new $SU(6)\otimes U(1)_{X}$ GUT model free from anomalies, with a 750 GeV scalar candidate which can decay into two photons, compatible with the recent diphoton signal reported by ATLAS and CMS collaborations. This model gives masses to all fermions and may explain the 750GeV signal through one loop decays to $γγ$ with charged vector and charged Higgs bosons, as well as up- and electron-like exotic particles that arise naturally from the condition of cancellation of anomalies of the $SU(6)\otimes U(1)_{X}$ group. We obtain, for different width approximations, allowed mass regions from 900 GeV to 3 TeV for the exotic up-like quark, in agreement with ATLAS and CMS collaborations data.
description: 4 figures, discussion extended, 1 new figure
Continuous 3D Label Stereo Matching using Local Expansion Moves
Creators: name: Taniai, Tatsunori
name: Matsushita, Yasuyuki
name: Sato, Yoichi
name: Naemura, Takeshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present an accurate stereo matching method using local expansion moves based on graph cuts. This new move-making scheme is used to efficiently infer per-pixel 3D plane labels on a pairwise Markov random field (MRF) that effectively combines recently proposed slanted patch matching and curvature regularization terms. The local expansion moves are presented as many alpha-expansions defined for small grid regions. The local expansion moves extend traditional expansion moves by two ways: localization and spatial propagation. By localization, we use different candidate alpha-labels according to the locations of local alpha-expansions. By spatial propagation, we design our local alpha-expansions to propagate currently assigned labels for nearby regions. With this localization and spatial propagation, our method can efficiently infer MRF models with a continuous label space using randomized search. Our method has several advantages over previous approaches that are based on fusion moves or belief propagation; it produces submodular moves deriving a subproblem optimality; it helps find good, smooth, piecewise linear disparity maps; it is suitable for parallelization; it can use cost-volume filtering techniques for accelerating the matching cost computations. Even using a simple pairwise MRF, our method is shown to have best performance in the Middlebury stereo benchmark V2 and V3.
description: 14 pages. An extended version of our preliminary conference paper [39], Taniai et al. "Graph Cut based Continuous Stereo Matching using Locally Shared Labels" in the proceedings of IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2014). Our results were submitted to Middlebury Stereo Benchmark Version 2 on April 22, 2015, and to Version 3 on July 4, 2017
Programme and material of the training for GEPI Committees
Creators: name: Mendoza, Cira
name: Perello, Michelle
Publisher: name: Zenodo
Year: 2022
Subjects: gender equality
gender equality training
Research funding organization (RPO)
Research funding organization (RFO)

description: The deliverable, entitled ‘Programme and material of the training for GEPI Committees’ presents the programme and material of the Training programme developed under the ATHENA framework delivered to the project Gender Equality Plans Implementation (GEPI) Committees. The document also introduces this figure of the GEPI Committee members, key elements for the facilitation and promotion of the institutional change towards gender equality at the ATHENA institutions, presenting their objectives, role, main tasks and composition.
Octonionic geometry and conformal transformations
Creators: name: Gogberashvili, Merab
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe space-time using split octonions over the reals and use their group of automorphisms, the non-compact form of Cartan's exceptional Lie group G2, as the main geometrical group of the model. Connections of the G2-rotations of octonionic 8D space with the conformal transformations in 4D Minkowski space-time are studied. It is shown that the dimensional constant needed in these analysis naturally gives the observed value of the cosmological constant.
description: The journal version
Donde Hay Confianza, Hay Todo: Latina Mothers' Perspectives on Confianza in the New Latino Diaspora
Creators: name: Rodriguez, Esmeralda
Publisher: name: University of North Carolina at Chapel Hill
Year: 2013

description: The purpose of this study is to expand on the existing literature on Latina ways of knowing. Using a Chicana feminist perspective and mujerista perspective (Villenas et al., 2006), this study centers the lived experiences and narratives of two Latina mothers living in a small college town in North Carolina. This is a study on relationships--specifically the relationships between, Alma and Blanca1, their respective children, and their communities. Using these two case studies, this thesis focuses on how Alma and Blanca operationalize confianza and as well as outlines how convivencia, respeto, and cariño serve as important pillars of establishing and maintaining confianza.
Self-guaranteed measurement-based quantum computation
Creators: name: Hayashi, Masahito
name: Hajdusek, Michal
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In order to guarantee the output of a quantum computation, we usually assume that the component devices are trusted. However, when the total computation process is large, it is not easy to guarantee the whole system when we have scaling effects, unexpected noise, or unaccounted correlations between several subsystems. If we do not trust the measurement basis nor the prepared entangled state, we do need to be worried about such uncertainties. To this end, we proposes a "self-guaranteed" protocol for verification of quantum computation under the scheme of measurement-based quantum computation where no prior-trusted devices (measurement basis nor entangled state) are needed. The approach we present enables the implementation of verifiable quantum computation using the measurement-based model in the context of a particular instance of delegated quantum computation where the server prepares the initial computational resource and sends it to the client who drives the computation by single-qubit measurements. Applying self-testing procedures we are able to verify the initial resource as well as the operation of the quantum devices, and hence the computation itself. The overhead of our protocol scales as the size of the initial resource state to the power of 4 times the natural logarithm of the initial state's size.
Stability of Riemannian manifolds with Killing spinors
Creators: name: Wang, Changliang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Riemannian manifolds with non-zero Killing spinors are Einstein manifolds. Klaus Kröncke proved that all complete Riemannian manifolds with imaginary Killing spinors are (linearly) strictly stable in \cite{Kro15}. In this paper, we obtain a new proof for this stability result by using a Bochner type formula in \cite{DWW05} and \cite{Wan91}. Moreover, existence of real Killing spinors is closely related to the Sasaki-Einstein structure. A regular Sasaki-Einstein manifold is essentially the total space of a certain principal $S^{1}$-bundle over a Kähler-Einstein manifold. We prove that if the base space is a product of two Kähler-Einstein manifolds then the regular Sasaki-Einstein manifold is unstable. This provides us many new examples of unstable manifolds with real Killing spinors.
description: Final version, introduction revised, references added
Magnetic radial vortex stabilization and efficient manipulation driven by the Dzyaloshinskii Moriya Interaction and the spin-transfer torque
Creators: name: Siracusano, G.
name: Giordano, R. Tomasello A.
name: Puliafito, V.
name: Azzerboni, B.
name: Ozatay, O.
name: Carpentieri, M.
name: Finocchio, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Solitons are very promising for the design of next generation of ultralow power devices for storage and computation. The key ingredient to achieve this goal is the fundamental understanding of their stabilization and manipulation. Here, we show how the interfacial Dzyaloshinskii Moriya Interaction (i DMI) is able to lift the energy degeneracy of a magnetic vortex state by stabilizing a topological soliton with radial chirality, hereafter called radial vortex. It has a non-integer skyrmion number S (0.5
Consensus and Voting on Large Graphs: An Application of Graph Limit Theory
Creators: name: Lee, Barton E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Combinatorics (math.CO)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Building on recent work by Medvedev (2014) we establish new connections between a basic consensus model, called the voting model, and the theory of graph limits. We show that in the voting model if consensus is attained in the continuum limit then solutions to the finite model will eventually be close to a constant function, and a class of graph limits which guarantee consensus is identified. It is also proven that the dynamics in the continuum limit can be decomposed as a direct sum of dynamics on the connected components, using Janson's definition of connectivity for graph limits. This implies that without loss of generality it may be assumed that the continuum voting model occurs on a connected graph limit.
A note on constructing sharp examples for $L^{p}$ norms of eigenfunctions and quasimodes near submanifolds
Creators: name: Tacy, Melissa
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: In this note we analyse $L^{p}$ estimates for Laplacian eigenfunctions and quasimodes and their associated sharp examples. In particular we use previously determined estimates to produce a new set of estimates for restriction to thickened neighbourhoods of submanifolds. In addition we produce a family flat model quasimode examples that can be used to determine sharpness of estimates on Laplacian eigenfunctions restricted to subsets. For each quasimode in the family we show that there is a corresponding spherical harmonic that displays the same growth properties. Therefore it is enough to check $L^{p}$ growth estimates against the simple flat model examples. Finally we present a heuristic that for any subset determines which quasimode in the family is expected to produce sharp examples.
description: No change to major results. Change to proof of Proposition 3.1 but no change to the result. Sections 1 and 4 reorganised. Final version
Saturation Mechanisms of the Effective Thermal Conductivity of a Suspension with Spherical and Ellipsoid Particles
Creators: name: Shu, Qiya
name: Kneer, Reinhold
name: de Doncker, Rik W.
Publisher: name: RWTH Aachen University
Year: 2022

description: 9. mobilEM Colloquium, Aachen, Germany, 7 Sep 2022 - 8 Sep 2022
Einfluss der Radikalität der Resektion eines Glioblastoma multiforme in Kombination mit einer adjuvanten Chemotherapie auf das Survival
Creators: name: Hubertus, Jochen
Publisher: name: Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité
Year: 2005
Subjects: subject: Chemotherapie
subject: Glioblastoma multiforme
subject: Resektion
subject: Überleben
subject: resection
subject: chemotherapy
subject: survival
subject: 610 Medizin
subject: 33 Medizin
subject: XH 3104
subject: XH 8504
subject: XH 8515
subject: YG 6304

description: Ziel: Den Einfluss der Radikalität der Resektion eines Glioblastoma multiforme in Kombination mit einer adjuvanten Chemotherapie auf das Survival heraus zu arbeiten. Methoden: Zwischen 1997 und 2000 wurden 55 Patienten, die an einem primären Glioblastoma multiforme erkrankten, einer Tumorresektion unterzogen. Von den 55 Patienten waren 36 männlich und 19 weiblich. Im Mittel erkrankten die Patienten mit 56 Jahren. Tumorresektion und Radiatio wurden bei allen Patienten durchgeführt. 20 Patienten wurden darüber hinaus noch mit einer adjuvanten Chemotherapie behandelt. Ergebnisse: Die Patienten, die mit einer Chemotherapie behandelt wurden, zeigten ein signifikant längeres Überleben (85 versus 44 weeks). Und die Patienten mit einem postoperativen Resttumor profitierten am meisten von der adjuvanten Chemotherapie (75 versus 39 weeks). Zusammenfassung: Patienten, die mit einer adjuvanten Chemotherapie behandelt wurden zeigten ein signifikant längeres Überleben als die Patienten ohne diese Therapie.
description: Objective: To evaluate the influence of resection of a glioblastoma multiforme in combination with adjuvant chemotherapy regarding survival. Methods: From 1997 to 2000, 55 patients with primary glioblastoma multiforme underwent a tumor resection. Of the 55 patients 36 were male, 19 female, with an average age of 56 years. Tumor resection and radiatio were performed in all patients. 20 patients were treated additionally with chemotherapy. Results: Patients treated with chemotherapy displayed a significant longer survival (85 versus 44 weeks). And the patients with a residual postoperative tumor mass did benefit from adjuvant chemotherapy (75 versus 39 weeks). Conclusion: Patients treated with adjuvant chemotherapy had a significant longer survival then those without this therapy.
Dipole Response of 238U to Polarized Photons Below the Neutron-separation Energy
Creators: name: Hammond, Samantha L.
Publisher: name: University of North Carolina at Chapel Hill
Year: 2011

description: An investigation of dipole states in 238U is important for the fundamental understanding of its structure. In the present work, precise experimental information on the distribution of M1 and E1 transitions in 238U has been obtained with the nuclear resonance fluorescence technique at the High-Intensity gamma-ray Source at the Triangle Universities Nuclear Laboratory. Using 100% linearly-polarized, monoenergetic gamma-ray beams with incident energies of 2.0 - 6.2 MeV, the spin, parity, integrated cross section, width, branching ratio, and gamma-strength of the observed deexcitations were determined. These measurements form a unique data set that can be used for comparison with theoretical models of collective excitations in heavy, deformed nuclei. The data can also provide isotope-specific signatures to search for special nuclear materials.
Relaxation times and charge conductivity of silicene
Creators: name: Mazloom, Azadeh
name: Parhizgar, Fariborz
name: Abedinpour, Saeed H.
name: Asgari, Reza
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the transport and single particle relaxation times of silicene in the presence of neutral and charged impurities. The static charge conductivity is studied using the semiclassical Boltzmann formalism when the spin-orbit interaction is taken into account. The screening is modeled within Thomas-Fermi and random phase approximations. We show that the transport relaxation time is always longer than the single particle one. Easy electrical controllability of both carrier density and band gap in this buckled two-dimensional structure makes it a suitable candidate for several electronic and optoelectronic applications. In particular, we observe that the dc charge conductivity could be easily controlled through an external electric field, a very promising feature for applications as electrical switches and transistors. Our findings would be qualitatively valid for other buckled honeycomb lattices of the same family, such as germanine and stanine.
description: 10 pages, 10 figures
Nature of Nepali state and hegemony of technocentrism and behaviorism in health practices in Nepal
Creators: name: Bhattarai, Anil
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: By situating the interventions in the area of children's health during the last six decades in Nepal within the broader context of development interventions, this thesis argues that national political context is an important factor in the domination of technocentric and behaviorist knowledge and practices in health in Nepal. The post-Second World War project of development was framed in techno-behaviorist terms by international development agencies. The formation of academic institutions, the production of knowledge and its dissemination through a wide network of information, education and communication activities was central feature of international development. However, the domination of these knowledge and actions in specific context was contingent upon the national political context.
Radikalleşme Üzerine Yeniden Düşünmek: Avrupa'da İslamcı ve Popülist Radikalleşme
Creators: name: Kaya, Ayhan
Publisher: name: Zenodo
Year: 2023

description: Bu rapor Avrupa Araştırma Konseyi (ERC) 785934 numaralı ISLAM-OPHOB-ISM İleri Seviye Destek (AdG) projesi için Horizon 2020 araştırma ve yenilik çerçeve programı kapsamında hazırlanmıştır.
Factorizations in bounded hereditary Noetherian prime rings
Creators: name: Smertnig, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: (Primary) 16E60, (Secondary) 16P40, 16U30, 19A49, 20M13

description: If $H$ is a monoid and $a=u_1 \cdots u_k \in H$ with atoms (irreducible elements) $u_1, \ldots, u_k$, then $k$ is a length of $a$, the set of lengths of $a$ is denoted by $\mathsf L(a)$, and $\mathcal L(H)=\{\,\mathsf L (a) \mid a \in H \,\}$ is the system of sets of lengths of $H$. Let $R$ be a hereditary Noetherian prime (HNP) ring. Then every element of the monoid of non-zero-divisors $R^\bullet$ can be written as a product of atoms. We show that, if $R$ is bounded and every stably free right $R$-ideal is free, then there exists a transfer homomorphism from $R^{\bullet}$ to the monoid $B$ of zero-sum sequences over a subset $G_{\textrm{max}}(R)$ of the ideal class group $G(R)$. This implies that the systems of sets of lengths, together with further arithmetical invariants, of the monoids $R^{\bullet}$ and $B$ coincide. It is well-known that commutative Dedekind domains allow transfer homomorphisms to monoids of zero-sum sequences, and the arithmetic of the latter has been the object of much research. Our approach is based on the structure theory of finitely generated projective modules over HNP rings, as established in the recent monograph by Levy and Robson. We complement our results by giving an example of a non-bounded HNP ring in which every stably free right $R$-ideal is free but which does not allow a transfer homomorphism to a monoid of zero-sum sequences over any subset of its ideal class group.
description: 50 pages
Direct extraction of nuclear effects in quasielastic scattering on carbon
Creators: name: Wilkinson, Callum
name: McFarland, Kevin S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Nuclear effects on neutrino reactions are expected to be a significant complication in current and future neutrino oscillation experiments seeking precision measurements of neutrino flavor transitions. Calculations of these nuclear effects are hampered by a lack of experimental data comparing neutrino reactions on free nucleons to neutrino reactions on nuclei. We present results from a novel technique that compares neutrino and antineutrino charged current quasielastic scattering on hydrocarbons to extract a cross section ratio of antineutrino charged current elastic reactions on free protons to charged current quasielastic reactions on the protons bound in a carbon nucleus. This measurement of nuclear effects is compared to models.
Splines and Wavelets on Circulant Graphs
Creators: name: Kotzagiannidis, Madeleine S.
name: Dragotti, Pier Luigi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We present novel families of wavelets and associated filterbanks for the analysis and representation of functions defined on circulant graphs. In this work, we leverage the inherent vanishing moment property of the circulant graph Laplacian operator, and by extension, the e-graph Laplacian, which is established as a parameterization of the former with respect to the degree per node, for the design of vertex-localized and critically-sampled higher-order graph (e-)spline wavelet filterbanks, which can reproduce and annihilate classes of (exponential) polynomial signals on circulant graphs. In addition, we discuss similarities and analogies of the detected properties and resulting constructions with splines and spline wavelets in the Euclidean domain. Ultimately, we consider generalizations to arbitrary graphs in the form of graph approximations, with focus on graph product decompositions. In particular, we proceed to show how the use of graph products facilitates a multi-dimensional extension of the proposed constructions and properties.
description: To appear in Appl. Comput. Harmon. Anal. (2017)
Influence of exercise training on the free testosterone to cortisol ratio
Creators: name: Duke, Joseph W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The purposes of this investigation were to determine if the free testosterone to cortisol ratio (fTC) is a reliable marker that can be used to monitor an athlete's training and possibly diagnose overtraining and/or the Overtraining Syndrome. The investigator also wanted to see if a 3-day intense micro-cycle of training causes an athlete to become overtrained. Twelve highly trained male endurance athletes cycled for 60 minutes at 75% of their VO2peak for 3 consecutive days. Blood samples were taken immediately pre and post-exercise and were analyzed for free testosterone and cortisol from which the fTC ratio was calculated. Results of this investigation suggest that the fTC ratio is a reliable marker as it did not significantly change during the training. Similarly, the results also suggest that 3 days of intense training may not be enough to cause an athlete to become overtrained.