cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Culturally responsive museum education practices from Malawi, Africa
Creators: name: Baker, Kimberly
Publisher: name: University of British Columbia
Year: 2011

description: The purpose of this research was to examine the culturally responsive education practices (CREP) of the museum educators of a Museum in Malawi, Africa through an instrumental intrinsic case study. Specifically I examined the Mobile Museum’s outreach programs - HIV/AIDS Prevention, Malaria Prevention and the Cultural Expression & Promotion in Primary Schools. A second purpose was to discover, how particular groups and/or individuals receive and respond to these programs in relation to preserving expressive arts cultural heritage. Thirdly, the data collected provided evidence and a methodology for museum educators to draw from when developing and implementing culturally responsive museum education programs (CRMEP). This study included two participants, who are the people primarily responsible for developing the education programs at the Museum. This overall study is framed through the lens of culturally responsive education. During a three-week period (November 18 to December 5, 2010), I collected qualitative data from two sources, expert interviews, and observations of the participants and the programs. Additionally, I collected quantitative data in the form of a questionnaire. I draw upon Bogdan and Biklen (2007) methodological triangulation, which includes multiple perspectives, sources of data and methodologies. My research reveals that the participants contribute to preserving expressive arts cultural heritage through ‘active participation’ of CREP through socially responsible mandates. Therefore, I propose a reframing of museum education theory and practice to encompass CREP, which will have consequent implications on future research in `relational museology`- a strategy that integrates both top-down and bottom-up approaches to community development through a conduit of communication and collaboration processes with all stake-holders.
Additional file 1 of Characteristics and impact of interventions to support healthcare providers’ compliance with guideline recommendations for breast cancer: a systematic literature review
Creators: name: Ricci-Cabello, Ignacio
name: Carvallo-Castañeda, Darla
name: Vásquez-Mejía, Adrián
name: Alonso-Coello, Pablo
name: Saz-Parkinson, Zuleika
name: Parmelli, Elena
name: Morgano, Gian Paolo
name: Rigau, David
name: Solà, Ivan
name: Neamtiu, Luciana
name: Niño-de-Guzmán, Ena
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer
Science Policy

description: Additional file 1.  PRISMA 2020 Checklist.
Disease Control on Dairy Farms with a Focus on Johne's Disease and Veterinary Communication
Creators: name: Ritter, Caroline Manuela Nancy
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Dairy farming
subject: Behavior change
subject: Veterinary consultancy
subject: Disease prevention and control
subject: Johne's disease
subject: Education--Social Sciences
subject: Economics
subject: Agriculture
subject: Veterinary Science

description: Motivating dairy farmers to implement disease prevention and control strategies can be challenging. The first objective of this thesis was to assess factors that influence farmers’ management decisions. A literature review was conducted focusing on socio-psychological influences and farmers’ preferred information sources. Additionally, surveys and qualitative interviews with Alberta dairy farmers contributed to the current knowledge by assessing farmers’ attitudes, beliefs, and perceptions in regard to the prevention and control of Johne’s disease, an infectious enteritis that is caused by Mycobacterium avium subsp. paratuberculosis (MAP) and is endemic in Canadian dairy cows. Environmental fecal samples were analyzed for MAP to assess whether farm infection status influenced farmers’ decision to enroll in the voluntary Alberta Johne’s Disease Initiative (AJDI). Observed herd prevalence of MAP (i.e., 51%) was similar between AJDI participants and nonparticipants. Results further indicated that farmers have to believe in the importance of the disease and in recommended prevention and control strategies to make changes. In Alberta, the reasons why farmers did not participate in the AJDI or implemented recommended measures included skepticism of the threat and negative effects of Johne’s disease, critique of test sensitivity, required time, and costs. Farmers used a variety of information channels, but herd veterinarians had a major influence on their management. Veterinarians are in an ideal position to communicate and motivate recommended strategies targeted to each farm, and it is well established that effective communication skills can improve adherence with advice and health outcomes. Therefore, the second objective was to assess veterinary communication patterns. First, the suitability of on-farm video recordings for comprehensive communication analysis using the Roter Interaction Analysis System was demonstrated. Then, veterinary communication during 70 dairy farm visits was assessed. Veterinarians spent most of their talk on farmer education and relationship building. Demographics such as gender and length of the professional veterinarian-farmer relationship affected the use of some communication variables, whereas the effect of previous communication training was minimal. Identification of influences on farmers’ management decisions and of veterinary communication patterns can reveal opportunities to enhance communication, thus improving the uptake of prevention and control measures.
Order in de Broglie - Bohm quantum mechanics
Creators: name: Contopoulos, G.
name: Delis, N.
name: Efthymiopoulos, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A usual assumption in the so-called {\it de Broglie - Bohm} approach to quantum dynamics is that the quantum trajectories subject to typical `guiding' wavefunctions turn to be quite irregular, i.e. {\it chaotic} (in the dynamical systems' sense). In the present paper, we consider mainly cases in which the quantum trajectories are {\it ordered}, i.e. they have zero Lyapunov characteristic numbers. We use perturbative methods to establish the existence of such trajectories from a theoretical point of view, while we analyze their properties via numerical experiments. Using a 2D harmonic oscillator system, we first establish conditions under which a trajectory can be shown to avoid close encounters with a moving nodal point, thus avoiding the source of chaos in this system. We then consider series expansions for trajectories both in the interior and the exterior of the domain covered by nodal lines, probing the domain of convergence as well as how successful the series are in comparison with numerical computations or regular trajectories. We then examine a Hénon - Heiles system possessing regular trajectories, thus generalizing previous results. Finally, we explore a key issue of physical interest in the context of the de Broglie - Bohm formalism, namely the influence of order in the so-called {\it quantum relaxation} effect. We show that the existence of regular trajectories poses restrictions to the quantum relaxation process, and we give examples in which the relaxation is suppressed even when we consider initial ensembles of only chaotic trajectories, provided, however, that the system as a whole is characterized by a certain degree of order.
description: 25 pages, 12 figures
Global Winning Conditions in Synthesis of Distributed Systems with Causal Memory
Creators: name: Finkbeiner, Bernd
name: Gieseking, Manuel
name: Hecking-Harbusch, Jesko
name: Olderog, Ernst-Rüdiger
Publisher: name: CISPA
Year: 2023

description: In the synthesis of distributed systems, we automate the development of distributed programs and hardware by automatically deriving correct implementations from formal specifications. For synchronous distributed systems, the synthesis problem is well known to be undecidable. For asynchronous systems, the boundary between decidable and undecidable synthesis problems is a long-standing open question. We study the problem in the setting of Petri games, a framework for distributed systems where asynchronous processes are equipped with causal memory. Petri games extend Petri nets with a distinction between system places and environment places. The components of a distributed system are the players of the game, represented as tokens that exchange information during each synchronization. Previous decidability results for this model are limited to local winning conditions, i.e., conditions that only refer to individual components. In this paper, we consider global winning conditions such as mutual exclusion, i.e., conditions that refer to the state of all components. We provide decidability and undecidability results for global winning conditions. First, we prove for winning conditions given as bad markings that it is decidable whether a winning strategy for the system players exists in Petri games with a bounded number of system players and one environment player. Second, we prove for winning conditions that refer to both good and bad markings that it is undecidable whether a winning strategy for the system players exists in Petri games with at least two system players and one environment player. Our results thus show that, on the one hand, it is indeed possible to use global safety specifications like mutual exclusion in the synthesis of distributed systems. However, on the other hand, adding global liveness specifications results in an undecidable synthesis problem for almost all Petri games.
Upper Limit on the Cosmological Gamma-ray Background
Creators: name: Inoue, Yoshiyuki
name: Ioka, Kunihito
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the current extragalactic gamma-ray background (EGB) measurement below 100 GeV sets an upper limit on EGB itself at very high energy (VHE) above 100 GeV. The limit is conservative for the electromagnetic cascade emission from VHE EGB interacting with the cosmic microwave-to-optical background radiation not to exceed the current EGB measurement. The cascade component fits the measured VHE EGB spectrum rather well. However, once we add the contribution from known source classes, the Fermi VHE EGB observation exceeds or even violates the limit, which is approximated as E^2dN/dE < 4.5x10^-5 (E/100 GeV)^-0.7 MeV/cm^2/s/sr. The upper limit above 100 GeV is useful in the future to probe the EGB origin and the new physics like axion-like particles and Lorentz-invariance violation.
description: 8 pages, 8 figures, accepted for publication in PRD, Interested readers may wish to consult the recent paper by Murase, Beacom and Takami (arXiv:1205.5755)
The Chandra X-Ray Optics
Creators: name: Weisskopf, Martin C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Significant advances in science always take place when the state of the art in instrumentation improves dramatically. NASA's Chandra X-Ray Observatory represents such an advance. Launched in July of 1999, Chandra is an observatory designed to study the x-ray emission from all categories of astronomical objects --- from comets, planets, and normal stars to quasars, galaxies, and clusters of galaxies. At the heart of this observatory is the precision X-Ray optic that has been vital for Chandra's outstanding success and which features an angular resolution improved by an order of magnitude compared to its forerunners. The Chandra mission is now entering its 13-th year of operation. Given that the Observatory was designed for a minimum of 3 years of operation testifies to its robust and carefully thought out design. We review the design and construction of the remarkable telescope, present examples of its usage for astronomy and astrophysics, and speculate upon the future.
description: 14 pages, 11 figures, invited paper for Optical Engineering
The impact of baryon physics on the structure of high-redshift galaxies
Creators: name: Zemp, Marcel
name: Gnedin, Oleg Y.
name: Gnedin, Nickolay Y.
name: Kravtsov, Andrey V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the detailed structure of galaxies at redshifts z > 2 using cosmological simulations with improved modeling of the interstellar medium and star formation. The simulations follow the formation and dissociation of molecular hydrogen, and include star formation only in cold molecular gas. The molecular gas is more concentrated towards the center of galaxies than the atomic gas, and as a consequence, the resulting stellar distribution is very compact. For halos with total mass above 10^{11} Mo, the median half-mass radius of the stellar disks is 0.8 kpc at z = 3. The vertical structure of the molecular disk is much thinner than that of the atomic neutral gas. Relative to the non-radiative run, the inner regions of the dark matter halo change shape from prolate to mildly oblate and align with the stellar disk. However, we do not find evidence for a significant dark disk of dark matter around the stellar disk. The outer halo regions retain the orientation acquired during accretion and mergers, and are significantly misaligned with the inner regions. The radial profile of the dark matter halo contracts in response to baryon dissipation, establishing an approximately isothermal profile throughout most of the halo. This effect can be accurately described by a modified model of halo contraction. The angular momentum of a fixed amount of inner dark matter is approximately conserved over time, while in the dissipationless case most of it is transferred outward during mergers. The conservation of the dark matter angular momentum provides supporting evidence for the validity of the halo contraction model in a hierarchical galaxy formation process.
description: 17 pages, 18 figures, submitted to ApJ
Eisenstein series for infinite-dimensional U-duality groups
Creators: name: Fleig, Philipp
name: Kleinschmidt, Axel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider Eisenstein series appearing as coefficients of curvature corrections in the low-energy expansion of type II string theory four-graviton scattering amplitudes. We define these Eisenstein series over all groups in the E_n series of string duality groups, and in particular for the infinite-dimensional Kac-Moody groups E9, E10 and E11. We show that, remarkably, the so-called constant term of Kac-Moody-Eisenstein series contains only a finite number of terms for particular choices of a parameter appearing in the definition of the series. This resonates with the idea that the constant term of the Eisenstein series encodes perturbative string corrections in BPS-protected sectors allowing only a finite number of corrections. We underpin our findings with an extensive discussion of physical degeneration limits in D<3 space-time dimensions.
description: 69 pages. v2: Added references and small additions, to be published in JHEP
Maliciously Circuit-Private FHE from Information-Theoretic Principles
Creators: name: Döttling, Nico
name: Dujmovic, Jesko
Publisher: name: CISPA
Year: 2023

description: Fully homomorphic encryption (FHE) allows arbitrary computations on encrypted data. The standard security requirement, IND-CPA security, ensures that the encrypted data remain private. However, it does not guarantee privacy for the computation performed on the encrypted data. Statistical circuit privacy offers a strong privacy guarantee for the computation process, namely that a homomorphically evaluated ciphertext does not leak any information on how the result of the computation was obtained. Malicious statistical circuit privacy requires this to hold even for maliciously generated keys and ciphertexts. Ostrovsky, Paskin and Paskin (CRYPTO 2014) constructed an FHE scheme achieving malicious statistical circuit privacy. Their construction, however, makes non-black-box use of a specific underlying FHE scheme, resulting in a circuit-private scheme with inherently high overhead. This work presents a conceptually different construction of maliciously circuit-private FHE from simple information-theoretical principles. Furthermore, our construction only makes black-box use of the underlying FHE scheme, opening the possibility of achieving practically efficient schemes. Finally, in contrast to the OPP scheme in our scheme, pre- and post-homomorphic ciphertexts are syntactically the same, enabling new applications in multi-hop settings.
Nonadditive hard-sphere fluid mixtures: A simple analytical theory
Creators: name: Fantoni, Riccardo
name: Santos, Andrés
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We construct a non-perturbative fully analytical approximation for the thermodynamics and the structure of nonadditive hard-sphere fluid mixtures. The method essentially lies in a heuristic extension of the Percus-Yevick solution for additive hard spheres. Extensive comparison with Monte Carlo simulation data shows a generally good agreement, especially in the case of like-like radial distribution functions.
description: 19 pages, 13 figures, 3 tables; v2: minor changes, supplemental material
Spectral ratio: an observable to determine $K^{+}$ nucleus potential and $K^{+}$ N scattering cross section
Creators: name: Sood, Aman D.
name: Hartnack, Ch.
name: Aichelin, Jörg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Here we aim to show that the ratio of the momentum spectra of $K^{+}$ at small transverse momentum measured for symmetric systems of different sizes can be such an observable.
description: 3 pages, 2 figs, DAE BRNS Symposium on Nuclear Physics Dec 26-30, (2011), Visakhapatnam A.P. INDIA
Gender differentiated impacts and benefits of artisanal mining : engendering pathways out of poverty. A case study of Katwe-Kabatooro Town Council, Uganda
Creators: name: Hinton, Jennifer Jean
Publisher: name: University of British Columbia
Year: 2011

description: Artisanal and small scale mining (ASM) is a crucial livelihood for over 20 million miners in developing countries throughout the world (Veiga and Baker, 2004). Despite misperceptions of “mining as men’s work”, ~40-50% of Africa’s artisanal miners are women who occupy critical roles in commercial, domestic and social spheres (Lahiri Dutt, 2003; Hinton et al, 2003a). The widespread poverty, environmental degradation and poor social conditions which characterize the ASM poverty cycle are largely attributed to its informal nature and use of crude technologies while its capacity to reduce poverty through increased incomes is also well recognized. Numerous policy reforms and interventions have been implemented accordingly with variable success. This research posits that ASM policy and action must further be informed by understanding of factors that determine livelihood outcomes through a gender lens. Both quantitative and qualitative methods were used to investigate the gender-differentiated constraints facing women and men miners compared to those in fishing, trading and other activities as well as the main assets or poverty reducing measures to which they have access. Based on a case study in the salt mining community of Katwe-Kabatooro Town Council in Western Uganda, it was found that women are clearly disadvantaged in most assets that comprise the foundation for sustainable livelihoods. Nevertheless, many women miners’ vulnerability has prompted them to “trade up” their assets of labour, cash and growing social capital through livelihood diversification, leading to improved socio-economic and health outcomes. While this suggests a clear pathway out of poverty, the majority of women miners often cope by using strategies that compromise their wellbeing, with far reaching implications for themselves and the community. Although a number of women have been able to overcome major constraints, gender inequalities were shown to play a prominent role in exacerbating the ASM poverty cycle. Findings point to women’s lack of autonomy and decision-making power as a root cause of negative outcomes for health and wellbeing of both women and men. If ASM policy and technical intervention increase emphasis on building human and social capital, more success can be achieved in realizing the poverty reduction potential of ASM.
Engaging in the "How to Care, What to Say" Grief and Loss Workshop: A Constructivist Grounded Theory Study
Creators: name: Leteta, Barbara Ann
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Grief
subject: Loss
subject: Education
subject: Application
subject: Bereavement
subject: Education--Guidance and Counseling
subject: Education--Health
subject: Nursing
subject: FOS: Health sciences

description: The purpose of this study was to evaluate an Alberta Health Services grief education workshop offered to health care providers through the Grief Support Program titled, “How to Care, What to Say.” The goal of the workshop was to improve delivery of care for dying and deceased persons by providing holistic care to the family before, during, and after the death of a loved one. This was the only ongoing grief support workshop offered within the Calgary Zone to provide theory and practical information for health care providers caring for grieving patients and families at the end of life. Written evaluations of the grief workshop were reviewed and illuminated the need to understand how learning of grief theory and intervention occurred in practice. Therefore, a qualitative research study was conducted using Constructivist Grounded Theory to interview past participants of “How to Care, What to Say” workshop and who cared for grieving individuals/families. Individual interviews and a focus group revealed how participants perceived the learnings from the workshop and transferred their knowledge from the workshop to practice. Data analysis uncovered themes which led to the overarching theory for implementation of the workshop into practice: A relational process of understanding knowledge, self-awareness, advancing grief competencies, and moral responsibilities of providing holistic grief support. Research findings included the usefulness and meaningfulness of the grief program, effective teaching and learning processes, a need for increased application based exercises, and ideas for development of advanced grief workshops to improve health care providers’ comfort and competence to provide grief support.
Information Flow Guided Synthesis
Creators: name: Finkbeiner, Bernd
name: Metzger, Niklas
name: Moses, Yoram
Publisher: name: CISPA
Year: 2023

description: Compositional synthesis relies on the discovery of assumptions, i.e., restrictions on the behavior of the remainder of the system that allow a component to realize its specification. In order to avoid losing valid solutions, these assumptions should be necessary conditions for realizability. However, because there are typically many different behaviors that realize the same specification, necessary behavioral restrictions often do not exist. In this paper, we introduce a new class of assumptions for compositional synthesis, which we call information flow assumptions. Such assumptions capture an essential aspect of distributed computing, because components often need to act upon information that is available only in other components. The presence of a certain flow of information is therefore often a necessary requirement, while the actual behavior that establishes the information flow is unconstrained. In contrast to behavioral assumptions, which are properties of individual computation traces, information flow assumptions are hyperproperties, i.e., properties of sets of traces. We present a method for the automatic derivation of information-flow assumptions from a temporal logic specification of the system. We then provide a technique for the automatic synthesis of component implementations based on information flow assumptions. This provides a new compositional approach to the synthesis of distributed systems. We report on encouraging first experiments with the approach, carried out with the BoSyHyper synthesis tool.
Additional file 3 of Characteristics and impact of interventions to support healthcare providers’ compliance with guideline recommendations for breast cancer: a systematic literature review
Creators: name: Ricci-Cabello, Ignacio
name: Carvallo-Castañeda, Darla
name: Vásquez-Mejía, Adrián
name: Alonso-Coello, Pablo
name: Saz-Parkinson, Zuleika
name: Parmelli, Elena
name: Morgano, Gian Paolo
name: Rigau, David
name: Solà, Ivan
name: Neamtiu, Luciana
name: Niño-de-Guzmán, Ena
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer
Science Policy

description: Additional file 3.  Summary of Risk of Bias Assessment.
HBD HV Control and Monitoring System for the PHENIX Experiment at the Relativistic Heavy Ion Collider
Creators: name: Proissl, Manuel
Publisher: name: Zenodo
Year: 2009
Subjects: hbd
run09
magnet

description: This work outlines the development of new High Voltage Control and Monitoring System (HVC) for the Hadron Blind Detector (HBD), with this the detector’s performance is optimized through intelligent HV application.
Función de dos variables y sucesiones numéricas eventualmente periódicas.
Creators: name: Bennassar, Miguel Cerdá
Publisher: name: Zenodo
Year: 2021
Subjects: secuencias eventualmente periódicas
función de dos variables
conjetura de Collatz

description: Presento un algoritmo que define una función generadora de secuencias eventualmente periódicas,
 con los valores del ciclo elegibles y empezadas con cualquier número entero.
M4.2 Draft Maturity Model Based on Extensions and-or Additions to CoreTrustSeal Requirements
Creators: name: L'Hours, Hervé
name: Von Stein, Ilona
name: Huigen, Frans
name: Devaraju, Anusuriya
name: Mokrane, Mustapha
name: Davidson, Joy
name: De Vries, Jerry
name: Herterich, Patricia
name: Cepinskas, Linas
name: Huber, Robert
Publisher: name: Zenodo
Year: 2020
Subjects: CoreTrustSeal, FAIRsFAIR, EOSC, TDR, Trustworthy Digital Repository, Certification,

description: Aligning the CoreTrustSeal Requirements with an assessment of repositories' ability to enable FAIR data is an important part of delivering an EOSC. Trustworthy Digital Repositories (TDR) which enable FAIR data are a dependency for many components of modern, open, distributed research. This paper sets the work within the wider context of data infrastructures, describes the co-dependencies between (meta) data objects and their repository environment, and presents the developing mapping between requirements and principles. The evolving capability/maturity approach is explained and the design of a governed assessment and certification process is defined. This work will iterate alongside the wide range of ongoing data infrastructure initiatives to support a range of stakeholders on their journey towards trustworthy repository services that enable FAIR data. Extensive engagement and feedback are planned to allow us to reach this goal. Feedback is welcomed either directly to the authors or on the Google Doc. The CoreTrustSeal+FAIR overview itself is published and managed as a separate document.
Bounds on several versions of restrained domination number
Creators: name: Samadi, Babak
name: Golmohammadi, Hamid R
name: Khodkar, Abdollah
Publisher: name: Faculty of Science, University of Calgary
Year: 2017
Subjects: restrained domination, restrained double domination, total restrained domination

description: We investigate several versions of restraineddomination numbers and present new bounds on these parameters. We generalize the
concept of restrained domination and improve some well-known bounds in the literature.
In particular, for a graph $G$ of order $n$ and minimum degree $\delta\geq 3$, we prove that
the restrained double domination number of $G$ is at most $n-\delta+1$. In addition,
for a connected cubic graph $G$ of order $n$ we show that
the total restrained domination number of $G$ is at least $n/3$ and
the restrained double domination number of $G$ is at least $n/2$.
description: Contributions to Discrete Mathematics, Vol 12, No 1 (2017)
Polariton Condensation and Lasing
Creators: name: Snoke, David
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The similarities and differences between polariton condensation in microcavities and standard lasing in a semiconductor cavity structure are reviewed. The recent experiments on "photon condensation" are also reviewed.
description: 23 pages, 6 figures; Based on the book chapter in Exciton Polaritons in Microcavities, (Springer Series in Solid State Sciences vol. 172), V. Timofeev and D. Sanvitto, eds., (Springer, 2012)
Unifying Treatment of Discord via Relative Entropy
Creators: name: Zhang, Lin
name: Fei, Shao-Ming
name: Zhu, Jun
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A new form of zero-discord state via Petz's monotonicity condition on relative entropy with equality has been derived systematically. A generalization of symmetric zero-discord states is presented and the related physical implications are discussed.
description: 12 pages, LaTeX. Some parts are deleted. Any comments are welcome!
Geometric Algorithms for Minimal Enclosing Disks in Strictly Convex Normed Planes
Creators: name: Jahn, Thomas
Publisher: name: Faculty of Science, University of Calgary
Year: 2017
Subjects: minimal enclosing disk; norm-acute triangle; norm-obtuse triangle; strictly convex normed space; Voronoi diagram

description: With the geometric background provided by Alonso, Martini, and Spirova
on the location of circumcenters of triangles in normed planes, we show the validity of the Elzinga--Hearn algorithm and the Shamos--Hoey algorithm for solving the minimal enclosing disk problem in strictly convex normed planes.
description: Contributions to Discrete Mathematics, Vol 12, No 1 (2017)
Efficient Algorithms for Dynamic Cloud Resource Provisioning
Creators: name: Zhou, Ruiting
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Computer Science

description: Cloud computing has emerged as a new computing paradigm, with data centers proliferating in today’s Internet. Cloud service providers often adopt static resource provisioning to pack cloud resources to fixed types of virtual machines (VM), failing to address user demands efficiently and precisely. In this thesis, we focus on dynamic cloud resource provisioning, which provides realtime, on-demand access to cloud resources. We propose efficient algorithms to guide resource allocation and workload dispatching in cloud systems. We first study dynamic VM provisioning via an online auction algorithm. We generalize the existing literature by introducing computing jobs with completion deadlines. A cloud user bids for future cloud resources to execute its job. Each bid specifies (a) a resource profile of tailor-made VMs, (b) a utility, reflecting the amount that the user is willing to pay for executing its job, and (c) a soft deadline, specifying the preferred finish time of the job, as well as a penalty function that characterizes the cost of violating the deadline. We propose efficient cloud job auctions that execute in an online fashion, provide truthfulness guarantee, and achieve a good competitive ratio. We then discuss cloud container services, a more recent form of cloud resource provisioning. Compared to traditional VMs, cloud containers are more flexible and lightweight. We exploit this new algorithm design space, and study dynamic cloud container provisioning. We design efficient scheduling algorithms for complex computing jobs that are running on cloud containers. Our offline and online schedulers permit partial execution, allow a job to specify its job deadline, desired cloud containers, and inter-container dependence relations, and achieve near-optimal expected objective values. We further extend our study to cloud container clusters. Enterprise users often create clusters of inter-connected containers to provision complex services. Compared to traditional cloud services, key challenges in container cluster (CC) provisioning lie in the optimal placement of containers while considering inter-container traffic in a CC. The challenge further escalates when CCs are provisioned in an online fashion upon CC request arrivals. We investigate dynamic cloud CC provisioning, and propose an online algorithm to address the above challenges. Our online algorithm achieves computational and economical efficiencies.
Gamma-Ray Burst Dynamics and Afterglow Radiation from Adaptive Mesh Refinement, Special Relativistic Hydrodynamic Simulations
Creators: name: De Colle, Fabio
name: Granot, Jonathan
name: Lopez-Camara, Diego
name: Ramirez-Ruiz, Enrico
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the development of Mezcal-SRHD, a new adaptive mesh refinement, special relativistic hydrodynamics (SRHD) code, developed with the aim of studying the highly relativistic flows in Gamma-Ray Burst sources. The SRHD equations are solved using finite volume conservative solvers. The correct implementation of the algorithms is verified by one-dimensional (1D) shock tube and multidimensional tests. The code is then applied to study the propagation of 1D spherical impulsive blast waves expanding in a stratified medium with $ρ\propto r^{-k}$, bridging between the relativistic and Newtonian phases, as well as to a two-dimensional (2D) cylindrically symmetric impulsive jet propagating in a constant density medium. It is shown that the deceleration to non-relativistic speeds in one-dimension occurs on scales significantly larger than the Sedov length. This transition is further delayed with respect to the Sedov length as the degree of stratification of the ambient medium is increased. This result, together with the scaling of position, Lorentz factor and the shock velocity as a function of time and shock radius, is explained here using a simple analytical model based on energy conservation. The method used for calculating the afterglow radiation by post-processing the results of the simulations is described in detail. The light curves computed using the results of 1D numerical simulations during the relativistic stage correctly reproduce those calculated assuming the self-similar Blandford-McKee solution for the evolution of the flow. The jet dynamics from our 2D simulations and the resulting afterglow lightcurves, including the jet break, are in good agreement with those presented in previous works. Finally, we show how the details of the dynamics critically depend on properly resolving the structure of the relativistic flow.
description: 18 pages, 14 figures, accepted for publication in ApJ
On Axion's Effect on Propagation of Monochromatic Electromagnetic Wave Through Strong Magnetic Field
Creators: name: Khankhasayev, Mikhail
name: Scarlett, Carol
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A possibility of detecting the effect of photon-axion mixing in a cavity experiment is discussed. There are two photon-axion modes that acquire different indices of refraction and split in an inhomogeneous magnetic field. For a magnetic field inhomogeneous in the direction transverse to the light propagation an analytical solution is obtained both for the index of refraction and the beams' trajectories. In a cavity experiment, the beam splitting creates a bifurcation effect, which results in a decrease of the light intensity in the central region. Modulation of magnetic field can separate this effect from background by providing a narrow frequency range for any observed signal. When one integrates this effect over time and accounts for bandwidth, the overall drop in FWHM intensity is of order 10-2%. This is a very measurable effect.
description: 5 pages with 2 figures
Taraxacum
Creators: name: Uhlemann, Ingo
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Taraxacum

description: Taraxacum sect. Borealia    (syn. T. sect. Ceratophora)
 Diese amerikanisch-eurasisch arktisch-boreal verbreitete Sektion umfasst in den Alpen wenige, seltene Eiszeitrelikte, von denen bislang drei Sippen aus Österreich bekannt geworden sind. Ein weiteres, viertes Taxon mit schwarzviolett gefleckten Laubblättern, T. gallicum, wurde aus den französischen Alpen beschrieben. Zusätzlich dürfte es nötig sein, einige weitere Arten abzugrenzen, wie Untersuchungen an den klassischen Fundstellen im Grenzgebiet zwischen der Schweiz und Österreich (Samnaun-Gruppe) von JUNG, MEIEROTT, SACKWITZ und UHLEMANN im Jahre 2008 (unveröff.) ergaben. Klar getrennt werden können T. mazzettii und T. kraettlii. Hingegen wurde T. melzerianum am locus classicus (Hohe Tauern, Spinevitrol) von mir im Jahre 2003 nicht wie- der gefunden, so dass dessen taxonomischer Wert hier weder bestätigt noch beurteilt werden kann. Die in der spärlichen Originaldiagnose herausgestellten Differentialmerkmale, wie nahezu glatte Achänen, behaarte Schäfte und ungelappte Laubblätter (SOEST 1966b), treffen allerdings auch auf bestimmte Modifikanten der anderen beiden Arten zu.
Schlüssel zu den beiden gesicherten Arten dieser Sektion aus Österreich:
 1 Äußere Hüllblätter blaugrün, 4–5 mm breit, breit berandet; Griffeläste dunkelgrau.................................................................................. T. kraettlii
 – Äußere Hüllblätter olivgrün, 2–3 mm breit, schmal berandet; Griffeläste gelb....................................................................................... T. mazzettii
description: Published as part of Uhlemann, Ingo, 2011, Notizen zur Taraxacum-Flora Österreichs und Südtirols, pp. 27-53 in Neilreichia 6 on pages 45-46, DOI: 10.5281/zenodo.303107
The relationship between patient-provider communication and quality of life for children with asthma and their caregivers
Creators: name: Williams, D.M.
name: Sleath, B.
name: Ayala, G.X.
name: Davis, S.
name: Carpenter, D.M.
name: Yeatts, K.B.
Publisher: name: Informa Healthcare
Year: 2013

description: Objective: This study examined whether patient-provider communication is associated with asthma-related quality of life (QOL) and asthma outcomes among children with asthma and their caregivers. Methods: Children ages 8-16 years with asthma and their caregivers (n=296) were recruited at five pediatric practices in North Carolina. Children and caregivers reported demographic and clinical characteristics immediately after an audio-taped medical visit with their health care provider. During a home visit that took place 1 month after the medical visit, children and caregivers reported asthma-related QOL, and caregivers reported child asthma outcomes, including asthma symptom days and missed school days. Generalized estimating equations were used to determine whether patient-provider communication during the medical visit was associated with child and caregiver QOL and child asthma outcomes 1 month later. Results: On average, providers asked caregivers 4.5 questions and asked children 3 questions per visit, whereas caregivers and children asked less than 1 question per visit. Providers asked children more asthma-related questions, caregivers reported better QOL and fewer asthma symptom days 1 month later. Children and caregivers with higher asthma-management self-efficacy at the office visit reported better QOL 1 month later. Conclusions: Mirroring national guideline recommendations, our results suggest that providers should ask children about their asthma during medical visits. Future longitudinal studies should conduct mediation analyses to determine whether asking children asthma-related questions during medical visits increases children's asthma management self-efficacy and ultimately improve outcomes, such as QOL, health care utilization, symptom days and missed school days.
On Cops and Robbers on $G^{\Xi}$ and cop-edge critical graphs.
Creators: name: Cardoso, Domingos Moreira
name: Dominic, Charles
name: Witkowski, Łukasz
name: Witkowski, Marcin
Publisher: name: Faculty of Science, University of Calgary
Year: 2017
Subjects: Cops and Robbers, vertex-pursuit games

description: Cop Robber game is a two player game played on an  undirected graph. In this game cops try to capture a robber moving on the vertices of the graph. The cop number of a graph is the least number of cops needed to guarantee that the robber will be caught. In this paper we presents results concerning games on $G^{\Xi}$, that is the graph obtained by connecting the corresponding vertices in $G$ and its complement $\overline{G}$. In particular we show that for planar graphs $c(G^{\Xi})\leq 3$. Furthermore we investigate the cop-edge critical graphs, i.e. graphs that for any edge $e$ in $G$ we have either $c(G-e)c(G)$. We show couple examples of cop-edge critical graphs having cop number equal to~$3$.
description: Contributions to Discrete Mathematics, Vol 12, No 2 (2017)
Experiments with a Malkus-Lorenz water wheel: Chaos and Synchronization
Creators: name: Illing, Lucas
name: Fordyce, Rachel F.
name: Saunders, Alison M.
name: Ormond, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We describe a simple experimental implementation of the Malkus-Lorenz water wheel. We demonstrate that both chaotic and periodic behavior is found as wheel parameters are changed in agreement with predictions from the Lorenz model. We furthermore show that when the measured angular velocity of our water wheel is used as an input signal to a computer model implementing the Lorenz equations, high quality chaos synchronization of the model and the water wheel is achieved. This indicates that the Lorenz equations provide a good description of the water wheel dynamics.
description: 12 pages, 7 figures. The following article has been accepted by the American Journal of Physics. After it is published, it will be found at http://scitation.aip.org/ajp/
The properties of the high-mass star formation region IRAS22475+5939
Creators: name: Liu, X. -L.
name: Wang, J. -J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: IRAS22475+5939 has been well researched by previous astronomers. But we still get some new characteristics about it, using the first observations in lines of CO J=2-1,13CO J=2-1,13CO J=3-2 by the KOSMA 3 m telescope. The mapping of the intensity ratio of 13CO J=3-2 and 13CO J=2-1 shows the distribution of the temperature with two peaks, which don't coincide with IRAS22475+5939 source and the center of the HII region, but at the edge of the HII region. The overlays of the Spitzer IRAC 8um and CO contours indicate that they are associated with each other and the strongest polycyclic aromatic hydrocarbons (PAHs) emission is at the position of IRAS22475+5939 source. While the IRAS LRS spectrum at 7-23 um and the PHT-s spectrum at 2-12 um of IRAS22475+5939 source also exhibit strong PAHs emission characters at the main PAH bands. The diversity of PAH family should be responsible for the plateaus of PAHs emission in the PHT-s spectrum and the IRAS-LRS spectrum. An analysis and modeling in infrared bands suggest that IRAS22475+5939 is more likely to be a Class I YSO. Where this is the case, the star is likely to have a temperature T_{EFF} \sim 9995.8 K, mass \sim15.34 M_(sun), luminosity \sim 1.54*10^4 L_(sun) and age \sim 1.54*10^4 yr. The model shows that the circumstellar disc emission is important for the wavelength between 1 and 10 um, otherwise, envelope fluxes for lambda >10 um. The bipolar outflow is confirmed in the molecular cloud. The excited star of the HII region has the chance to be the driving source of the outflow. The high resolution is required.
description: 12 pages, 20 figures and 5 tables, Accepted for publication in RAA
Optimal Clock Synchronization with Signatures
Creators: name: Lenzen, Christoph
name: Loss, Julian
Publisher: name: CISPA
Year: 2023

description: Cryptographic signatures can be used to increase the resilience of distributed systems against adversarial attacks, by increasing the number of faulty parties that can be tolerated. While this is well-studied for consensus, it has been underexplored in the context of fault-tolerant clock synchronization, even in fully connected systems. Here, the honest parties of an n-node system are required to compute output clocks of small skew (i.e., maximum phase offset) despite local clock rates varying between 1 and ϑ>1, end-to-end communication delays varying between d−u and d, and the interference from malicious parties. So far, it is only known that clock pulses of skew d can be generated with (trivially optimal) resilience of ⌈n/2⌉−1 (PODC `19), improving over the tight bound of ⌈n/3⌉−1 holding without signatures for \emph{any} skew bound (STOC `84, PODC `85). Since typically d≫u and ϑ−1≪1, this is far from the lower bound of u+(ϑ−1)d that applies even in the fault-free case (IPL `01). We prove matching upper and lower bounds of Θ(u+(ϑ−1)d) on the skew for the resilience range from ⌈n/3⌉ to ⌈n/2⌉−1. The algorithm showing the upper bound is, under the assumption that the adversary cannot forge signatures, deterministic. The lower bound holds even if clocks are initially perfectly synchronized, message delays between honest nodes are known, ϑ is arbitrarily close to one, and the synchronization algorithm is randomized. This has crucial implications for network designers that seek to leverage signatures for providing more robust time. In contrast to the setting without signatures, they must ensure that an attacker cannot easily bypass the lower bound on the delay on links with a faulty endpoint.
Additional file 10 of Exploiting the GTEx resources to decipher the mechanisms at GWAS loci
Creators: name: Barbeira, Alvaro N.
name: Bonazzola, Rodrigo
name: Gamazon, Eric R.
name: Liang, Yanyu
name: Park, YoSon
name: Kim-Hellmuth, Sarah
name: Wang, Gao
name: Jiang, Zhuoxun
name: Zhou, Dan
name: Hormozdiari, Farhad
name: Liu, Boxiang
name: Rao, Abhiram
name: Hamel, Andrew R.
name: Pividori, Milton D.
name: Aguet, François
name: Bastarache, Lisa
name: Jordan, Daniel M.
name: Verbanck, Marie
name: Do, Ron
name: Stephens, Matthew
name: Ardlie, Kristin
name: McCarthy, Mark
name: Montgomery, Stephen B.
name: Segrè, Ayellet V.
name: Brown, Christopher D.
name: Lappalainen, Tuuli
name: Wen, Xiaoquan
name: Im, Hae Kyung
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 10 Review history