cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Do Interruptions Pay Off? Effects of Interruptive Ads on Consumers Willingness to Pay
Creators: name: Acquisti, Alessandro
name: Spiekermann, Sarah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: We present the results of a study designed to measure the impact of interruptive advertising on consumers willingness to pay for products bearing the advertiser's brand. Subjects participating in a controlled experiment were exposed to ads that diverted their attention from a computer game they were testing. We found that ads significantly lowered subjects willingness to pay for a good associated with the advertised brand. We did not find conclusive evidence that providing some level of user control over the appearance of ads mitigated the negative impact of ad interruption. Our results contribute to the research on the economic impact of advertising, and introduce a method of measuring actual (as opposed to self-reported) willingness to pay in experimental marketing research.
description: Advertising, Attention, Privacy, Willingness to Pay, Electronic commerce. Electronic copy
On the Combined Impact of Population Size and Sub-problem Selection in MOEA/D
Creators: name: Pruvost, Geoffrey
name: Derbel, Bilel
name: Liefooghe, Arnaud
name: Li, Ke
name: Zhang, Qingfu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper intends to understand and to improve the working principle of decomposition-based multi-objective evolutionary algorithms. We review the design of the well-established Moea/d framework to support the smooth integration of different strategies for sub-problem selection, while emphasizing the role of the population size and of the number of offspring created at each generation. By conducting a comprehensive empirical analysis on a wide range of multi-and many-objective combinatorial NK landscapes, we provide new insights into the combined effect of those parameters on the anytime performance of the underlying search process. In particular, we show that even a simple random strategy selecting sub-problems at random outperforms existing sophisticated strategies. We also study the sensitivity of such strategies with respect to the ruggedness and the objective space dimension of the target problem.
description: European Conference on Evolutionary Computation in Combinatorial Optimization, Apr 2020, Seville, Spain
Cost Efficiency of Critical Access Hospitals
Creators: name: Nedelea, I. Cristian
name: Fannin, James Matthew
name: Barnes, James N.
name: Nedelea, I. Cristian
name: Fannin, James Matthew
name: Barnes, James N.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: Health Economics and Policy
subject: critical access hospital
subject: rural hospital
subject: cost efficiency
subject: stochastic frontier model

description: This study used a stochastic frontier cost model to analyze whether the policy changes that created Critical Access Hospitals (CAHs) caused an increase in the cost inefficiency of these hospitals or their cost inefficiency was brought about by other factors that were similar to all rural hospitals. The estimated mean cost inefficiency of CAH was 25 percent while that of non-CAH rural hospitals was 17.6 percent. However, the estimated results did not provide sufficient evidence to conclude that Medicare cost-based reimbursement was the main cause of higher cost inefficiency of CAHs. There might be other causes that can explain the higher cost inefficiency of CAHs such as the larger number of Medicaid and uninsured patients and the higher levels of uncompensated care that CAHs provide.
Uniqueness and Optimality of Dynamical Extensions of Divergences
Creators: name: Gour, Gilad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We introduce an axiomatic approach for channel divergences and channel relative entropies that is based on three information-theoretic axioms of monotonicity under superchannels (i.e. generalized data processing inequality), additivity under tensor products, and normalization, similar to the approach given recently for the state domain. We show that these axioms are sufficient to give enough structure also in the channel domain, leading to numerous properties that are applicable to all channel divergences. These include faithfulness, continuity, a type of triangle inequality, and boundedness between the min and max channel relative entropies. In addition, we prove a uniqueness theorem showing that the Kullback-Leibler divergence has only one extension to classical channels. For quantum channels, with the exception of the max relative entropy, this uniqueness does not hold. Instead we prove the optimality of the amortized channel extension of the Umegaki relative entropy, by showing that it provides a lower bound on all channel relative entropies that reduce to the Kullback-Leibler divergence on classical states. We also introduce the maximal channel extension of a given classical state divergence and study its properties.
description: 15 pages (main text) + 14 pages (Appendix), 3 figures, published version
Additional file 1 of The prevalence and profile of autism in individuals born preterm: a systematic review and meta-analysis
Creators: name: Laverty, Catherine
name: Surtees, Andrew
name: O’Sullivan, Rory
name: Sutherland, Daniel
name: Jones, Christopher
name: Richards, Caroline
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Supplementary analysis and figures provided for additional clarity.
Inverse spectral Love problem via Weyl-Titchmarsh function
Creators: name: Sottile, Samuele
Publisher: name: arXiv
Year: 2023
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35R30, 35Q86, 34A55, 34L25, 81U40, 74J25

description: In this paper we prove an inverse resonance theorem for the half-solid with vanishing stresses on the surface via Weyl-Titchmarsh function. Using a semi-classical approach it is possible to simplify this three-dimensional problem of the elastic wave equation for the half-solid as a Schrödinger equation with Robin boundary conditions on the half-line. The goal of the paper is to establish a method to recover the potential from the Weyl-Titchmarsh function for non self-adjoint problems and to establish a one-to-one and onto map between suitable function spaces. Moreover, we produce an algorithm in order to retrieve the shear modulus from the eigenvalues and resonances, via the spectral data.
description: 26 pages, 1 figure
Emergence of vertical diversity under disturbance
Creators: name: Shishikura, Yuya
name: Ohta, Hiroki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We propose a statistical physics model of a neutral community, where each agent can represent identical plant species growing in the vertical direction with sunlight in the form of rich-get-richer competition. Disturbance added to this ecosystem, which makes an agent restart from the lowest growth level, is realized as a stochastic resetting. We show that in this model for sufficiently strong competition, vertical diversity characterized by a family of Hill numbers robustly emerges as a local maximum at intermediate disturbance.
description: 12 pages, 9 figures
Grand Unification in Higher Dimensions with Split Supersymmetry
Creators: name: Schuster, Philip C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate gauge coupling unification in higher dimensional GUT models with split supersymmetry. We focus on 5d and 6d orbifold GUTs, which permit a simple solution to several problems of 4D GUTs as well as control over GUT scale threshold corrections. In orbifold GUTs, calculable threshold corrections can raise or lower the prediction for $α_s(M_Z)$ in a way that depends on the location of Higgs fields. On the other hand, split supersymmetry lowers the prediction for $α_s(M_Z)$. Consequently, split supersymmetry changes the preferred location of the Higgs fields in orbifold GUTs. In the simplest models, we find that gauge coupling unification favors higgs doublets that live on the orbifold fixed points instead of in the bulk. In addition, relatively high scales of supersymmetry breaking of $10^{10\pm 2}$ GeV are generically favored.
description: 19 pages, 7 figures, references added
PPFP Choices Kenya and Indonesia Adult PPFP Non-Acceptor Focus Group Discussion Guide
Creators: name: Charurat, Elaine
name: Breithaupt, Lindsay
name: Kennedy, Sara
name: Schuster, Anne
name: Christofield, Megan
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Kenya (Public Facility) and Indonesia (Public and Private Facility) Adult Immediate Postpartum Family Planning Non-Acceptor interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English, Kiswahili, Kimeru, and Bahasa versions of the recruitment , consent and interview tools.
Seasonal epidemic spreading on small-world networks: Biennial outbreaks and classical discrete time crystals
Creators: name: Malz, Daniel
name: Pizzi, Andrea
name: Nunnenkamp, Andreas
name: Knolle, Johannes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We study seasonal epidemic spreading in a susceptible-infected-removed-susceptible (SIRS) model on smallworld graphs. We derive a mean-field description that accurately captures the salient features of the model, most notably a phase transition between annual and biennial outbreaks. A numerical scaling analysis exhibits a diverging autocorrelation time in the thermodynamic limit, which confirms the presence of a classical discrete time crystalline phase. We derive the phase diagram of the model both from mean-field theory and from numerics. Our work offers new perspectives by demonstrating that small-worldness and non-Markovianity can stabilize a classical discrete time crystal, and by linking recent efforts to understand such dynamical phases of matter to the century-old problem of biennial epidemics.
description: 7+4 pages, 4+1 figures; comments welcome
Additional file 1 of The concept of HRQoL for patients on hemodialysis in Saudi Arabia: an exploratory study
Creators: name: AL Garni, Rima Saleem
name: Cooke, Mary
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: COREQ (COnsolidated criteria for REporting Qualitative research) Checklist.
PPFP Choices Indonesia Adolescent Postpartum In Depth Interview Guide
Creators: name: Charurat, Elaine
name: Breithaupt, Lindsay
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Indonesia Adolescent Postpartum Interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English and Bahasa versions of the recruitment scripts, consent forms and interview tool.
Options for Economic Growth in Mali through the Application of Science and Technology to Agriculture
Creators: name: Kelly, Valerie A.
name: Carpenter, Janet
name: Diall, Oumar
name: Easterling, Tom
name: Kone, Moctar
name: McCornick, Peter G.
name: McGahuey, Mike
name: Kelly, Valerie A.
name: Carpenter, Janet
name: Diall, Oumar
name: Easterling, Tom
name: Kone, Moctar
name: McCornick, Peter G.
name: McGahuey, Mike
Publisher: name: Unknown
Year: 2005
Subjects: subject: International Development
subject: food security
subject: food policy
subject: Mali science and technology research
subject: research and extension

description: This report represents a synthesis of individual reports and notes prepared by each team member. The first three points in the terms of reference (TOR), provide an overview of current S&T research institutions and programs in Mali. Promising S&T products and needed support services are identified to encourage rapid uptake (4th item on the TOR). This discussion is divided into two sub-sections: one presents the key findings concerning crops and the other deals with livestock. These sections include the team’s recommendations for product- or subsector-based activities to be pursued in Mali by researchers, extension services, and public and private sector actors involved in different levels of the value-chain. Cross-cutting issues that affect technology development and uptake across multiple products and subsectors (5th item on the TOR) are analyzed. Key issues discussed are research and extension capacity; the role of natural resource and water management in stimulating agricultural productivity growth and reducing production risk; and downstream institutional constraints such as regulatory issues that limit uptake and dissemination of S&T products. Resolutions are discussed.
description: Prepared For The United States Agency for International Development Initiative To End Hunger In Africa
Model order reduction and sensitivity analysis for complex heat transfer simulations inside the human eyeball
Creators: name: Saigre, Thomas
name: Prud'Homme, Christophe
name: Szopos, Marcela
Publisher: name: arXiv
Year: 2024
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Heat transfer in the human eyeball, a complex organ, is significantly influenced by various pathophysiological and external parameters. Particularly, heat transfer critically affects fluid behavior within the eye and ocular drug delivery processes. Overcoming the challenges of experimental analysis, this study introduces a comprehensive three-dimensional mathematical and computational model to simulate the heat transfer in a realistic geometry. Our work includes an extensive sensitivity analysis to address uncertainties and delineate the impact of different variables on heat distribution in ocular tissues. To manage the model's complexity, we employed a very fast model reduction technique with certified sharp error bounds, ensuring computational efficiency without compromising accuracy. Our results demonstrate remarkable consistency with experimental observations and align closely with existing numerical findings in the literature. Crucially, our findings underscore the significant role of blood flowand environmental conditions, particularly in the eye's internal tissues. Clinically, this model offers a promising tool for examining the temperature-related effects of various therapeutic interventions on the eye. Such insights are invaluable for optimizing treatment strategies in ophthalmology.
PPFP Choices Kenya and Indonesia Adult PPFP Acceptor Focus Group Discussion Guide
Creators: name: Charurat, Elaine
name: Breithaupt, Lindsay
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Kenya (Public Facility) and Indonesia (Public and Private Facility) Adult Immediate Postpartum Family Planning Acceptor interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English, Kiswahili, Kimeru, and Bahasa versions of the recruitment and consent forms as well as the interview tool
In situ determination of the energy dependence of the high-frequency mobility in polymers
Creators: name: Hulea, I. N.
name: Pronin, A. V.
name: Brom, H. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The high-frequency mobility in disordered systems is governed by transport properties on mesoscopic length scales, which makes it a sensitive probe for the amount of local order. Here we present a method to measure the energy dependence of the high frequency mobility by combining an electrochemically gated transistor with in-situ quasi-optical measurements in the sub-terahertz domain. We apply this method to poly([2-methoxy-5-(3',7'-dimethylocyloxy)]-p-phenylene vinylene) (OC_1C_10-PPV) and find a mobility at least as high as 0.1 cm^2V^-1s^-1.
description: 3 pages (incl. 3 figures) in Appl. Phys. Lett
Problems in Rural Public Service and its Countermeasures: Investigation on Rural Areas of Ningxia Hui Autonomous Region China
Creators: name: Luo, Qiangqiang
name: Wang, Junli
name: Luo, Qiangqiang
name: Wang, Junli
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Ningxia Hui Autonomous Region of China
subject: Rural residents
subject: Rural public service

description: Under the condition of market economy, market competition has shown unprecedented pressure on agricultural producers with family as a production unit. Agricultural producers are at a relatively weak position. Agricultural production having the characteristics of small scale can hardly adapt to market competition effectively and agricultural production is facing a huge market risk. Therefore, farmers urgently need a wide range of public services. In March, 2007, the Ministry of Finance and Huazhong Normal University investigated a total of 1000 residents in 35 sample villages, belonging to 33 towns of Ningxia Hui Autonomous Region, China. Status of the supply of public services in rural areas is introduced from three aspects, which are backward service of public education, low level of public health service, and slow development of public cultural service. It is pointed out that the supply of rural public service is in serious shortage, and can hardly meet the practical needs of rural residents, rural development and agricultural production. Problems in rural public service are analyzed from the insufficient ability of government public service, the single supply subject of rural public service, and the lack of effective evaluation mechanism during the supply of public services. Finally, countermeasures for improving the supply of rural public service are put forward, such as strengthening the public service functions of governments at all levels, constructing a supply mechanism with diversified subjects, and establishing a farmer participation mechanism for rural public service supply, so that rural residents can enjoy the essential public services, develop rural economy, improve the living standards of rural residents, establish a sound social security system, ensure the smooth implementation of new countryside construction, and realize the coordinated socio-economic development between rural and urban areas.
Rapid Estimation of Left Ventricular Contractility with a Physics-Informed Neural Network Inverse Modeling Approach
Creators: name: Naghavi, Ehsan
name: Wang, Haifeng
name: Fan, Lei
name: Choy, Jenny S.
name: Kassab, Ghassan
name: Baek, Seungik
name: Lee, Lik-Chuan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Physics-based computer models based on numerical solution of the governing equations generally cannot make rapid predictions, which in turn, limits their applications in the clinic. To address this issue, we developed a physics-informed neural network (PINN) model that encodes the physics of a closed-loop blood circulation system embedding a left ventricle (LV). The PINN model is trained to satisfy a system of ordinary differential equations (ODEs) associated with a lumped parameter description of the circulatory system. The model predictions have a maximum error of less than 5% when compared to those obtained by solving the ODEs numerically. An inverse modeling approach using the PINN model is also developed to rapidly estimate model parameters (in $\sim$ 3 mins) from single-beat LV pressure and volume waveforms. Using synthetic LV pressure and volume waveforms generated by the PINN model with different model parameter values, we show that the inverse modeling approach can recover the corresponding ground truth values, which suggests that the model parameters are unique. The PINN inverse modeling approach is then applied to estimate LV contractility indexed by the end-systolic elastance $E_{es}$ using waveforms acquired from 11 swine models, including waveforms acquired before and after administration of dobutamine (an inotropic agent) in 3 animals. The estimated $E_{es}$ is about 58% to 284% higher for the data associated with dobutamine compared to those without, which implies that this approach can be used to estimate LV contractility using single-beat measurements. The PINN inverse modeling can potentially be used in the clinic to simultaneously estimate LV contractility and other physiological parameters from single-beat measurements.
PPFP Choices Indonesia Adolescent Postpartum In Depth Interview Guide
Creators: name: Breithaupt, Lindsay
name: Charurat, Elaine
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Indonesia Adolescent Postpartum Interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English and Bahasa versions of the recruitment scripts, consent forms and interview tool.
A contextual Planck parameter and the classical limit in quantum cosmology
Creators: name: Barrow, John D.
name: Magueijo, Joao
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose that whatever quantity controls the Heisenberg uncertainty relations (for a given complementary pair of observables) it should be identified with an effective Planck parameter. With this definition it is not difficult to find examples where the Planck parameter depends on the region under study, varies in time, and even depends on which pair of observables one focuses on. In quantum cosmology the effective Planck parameter depends on the size of the comoving region under study, and so depends on that chosen region and on time. With this criterion, the classical limit is expected, not for regions larger than the Planck length, $l_{P}$, but for those larger than $l_{Q}=(l_{P}^{2}H^{-1})^{1/3}$, where $H$ is the Hubble parameter. In theories where the cosmological constant is dynamical, it is possible for the latter to remain quantum even in contexts where everything else is deemed classical. These results are derived from standard quantization methods, but we also include more speculative cases where ad hoc Planck parameters scale differently with the length scale under observation. Even more speculatively, we examine the possibility that similar complementary concepts affect thermodynamical variables, such as the temperature and the entropy of a black hole.
PPFP Choices Kenya and Indonesia Facility Administrator and Providers Key Informant Interview Guide
Creators: name: Charurat, Elaine
name: Breithaupt, Lindsay
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Policy Makers Key Informant Interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the consent and Interview tools in English and Bahasa (English is used for the Kenya interviews).
PPFP Choices Kenya and Indonesia Adult PPFP Acceptor Focus Group Discussion Guide
Creators: name: Breithaupt, Lindsay
name: Charurat, Elaine
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Kenya (Public Facility) and Indonesia (Public and Private Facility) Adult Immediate Postpartum Family Planning Acceptor interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English, Kiswahili, Kimeru, and Bahasa versions of the recruitment and consent forms as well as the interview tool
Additional file 2 of The concept of HRQoL for patients on hemodialysis in Saudi Arabia: an exploratory study
Creators: name: AL Garni, Rima Saleem
name: Cooke, Mary
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2: Development of codes into categories and themes.
PPFP Choices Kenya and Indonesia Facility Administrator and Providers Key Informant Interview Guide
Creators: name: Breithaupt, Lindsay
name: Charurat, Elaine
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Policy Makers Key Informant Interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the consent and Interview tools in English and Bahasa (English is used for the Kenya interviews).
Versionierung mit Git und Gitlab
Creators: name: Berger, Christian
Publisher: name: Zenodo
Year: 2023
Subjects: Forschungsdatenmanagement
FDM
Versionierung
Versionsverwaltung
Repositorium
Kollaboration
research data management
RDM
versioning
version control
repository
collaboration
GitLab
Git
Software

description: Versionierung von Daten erzeugt neben langfristiger Nachverfolgbarkeit von Änderungen auch Vorteile in der kollaborativen Zusammenarbeit. In diesem Beitrag wird präsentiert wie, motiviert durch die Grundprinzipien von Versionierung, Tools wie Git und GitLab zu einer nachhaltigen Datenhaltung beitragen können.

 Die dreitägige HeFDI Data Week ermöglicht es Forschenden, Lehrenden und allen weiteren Interessierten, Themen und Angebote des Forschungsdatenmanagements kennenzulernen und zu erproben. Darüber hinaus werden den Teilnehmenden Daten- und Coding-Kompetenzen vermittelt sowie Dienste und Angebote verschiedener hessischer Infrastruktur-Einrichtungen und Zentren vorgestellt.
description: Die HeFDI Data Week ist ein Angebot der Landesinitiative HeFDI - Hessische Forschungsdateninfrastrukturen, welche vom Hessischen Ministerium für Wissenschaft und Kunst (HMWK) finanziert wird.
Gravitational instability and clustering in a disk of planetesimals
Creators: name: Tanga, P.
name: Weidenschilling, S. J.
name: Michel, P.
name: Richardson, D. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For a long time, gravitational instability in the disk of planetesimals has been suspected to be the main engine responsible for the beginning of dust growth, its advantage being that it provides for rapid growth. Its real importance in planetary formation is still debated, mainly because the potential presence of turbulence can prevent the settling of particles into a gravitationally unstable layer. However, several mechanisms could yield strongly inhomogeneous distributions of solids in the disk: radial drift, trapping in vortices, perturbations by other massive bodies, etc. In this paper we present a numerical study of a gravitationally unstable layer. This allows us to go beyond the classical analytical study of linear perturbations, exploring a highly non-linear regime. A hierarchical growth of structure in the presence of dissipation (gas drag) can yield large, virialized clusters of planetesimals, the first time such clusters have been observed in the context of planetesimal disks.
description: 12 pages, 12 figures (for Fig 1 and 7 at full resolution see http://www.obs-nice.fr/tanga/) Accepted by A&A
Effects of Producer-Provided Descriptions of Feeder Cattle and Conditions of Sale on Prices on a Tennessee Video Board Sale
Creators: name: McLemore, Dan L.
name: Drinnon, Damon
name: Rawls, Emmit L.
name: Campbell, John C.
name: McLemore, Dan L.
name: Drinnon, Damon
name: Rawls, Emmit L.
name: Campbell, John C.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: feeder cattle prices
subject: cattle characteristics
subject: conditions of sale
subject: hedonic model

description: The hedonic model was used to estimate effects on feeder cattle price of information about cattle and sale conditions specified by sellers. Specifications regarding weighing conditions, pencil shrink, weight/price slide, and feed availability were important. This study failed to find that EID, Process Verification (PVP), and health programs were significant.
The New Food Safety Standard ISO 22000. Assessment, Comparison and Correlation with HACCP and ISO 9000:2000. The Practical Implementation in Victual Business
Creators: name: Mamalis, Spyridon
name: Kafetzopoulos, Dimitrios P.
name: Aggelopoulos, Stamatis
name: Mamalis, Spyridon
name: Kafetzopoulos, Dimitrios P.
name: Aggelopoulos, Stamatis
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food safety
subject: Food Quality
subject: ISO 22000
subject: ISO 9000:2000
subject: HACCP
subject: Restaurant industry
subject: Food Marketing.

description: The present paper aims to study the application of new standard of food safety: ISO 22000:2005 in the catering industry. At the beginning the study made a comparison between ISO 22000 with the HACCP system and the ISO 9000:2000 standard, in order to identify their similarities and differences, while it pinpoints and records the reasons for creating and applying the ISO 22000 standard. Due to the preliminary nature of this study, we are given the opportunity to assess the practical application of ISO 22000 in an array of victual businesses and the repercussions on them, through their managers’ points of view. The present research will explore the influence of the ISO 22000 to the food safety issues, marketing, financial, operational and the business personnel. The research is preliminary. The method used to approach the issue was based on primary research through an appropriate questionnaire focusing on 20 victual businesses where the new standard has already been put into practice. In-depth site interviews were conducted at each firm to obtain detailed information about the ISO 22000:2005 registration process and experience. The conclusions from the current study identified the advantages and disadvantages of the ISO 22000 implementation. Also, explores the problems and barriers that face managers. Finally, it explores marketing managers’ attitudes towards ISO certification. ISO 22000, certification is a valuable tool to ensure food safety and quality requirements for food products while provide catering industry with reliability in order to meet consumers needs and wants.
Conjugacy in Miller's Groups
Creators: name: Gillis, Conan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In 1971 C.F.\ Miller associated to every finitely presented group $G$ a free-by-free group $M(G)$ known as the Miller Machine, whose conjugacy problem is closely related to the conjugacy and word problems of $G$. We quantify this relationship, and look to fully understand the conjugacy problem of $M(G)$; namely, we reduce the conjugacy problem in $M(G)$ to a strong form of list conjugacy in $G$, which we term iso-computational list conjugacy. As an application, we show that if $G$ is finite, the conjugacy problem for $M(G)$ is in $\mathsf{PSPACE}$.
description: Published in International Journal of Algebra and Computation
High-bandwidth microcoil for fast nuclear spin control
Creators: name: Herb, K.
name: Zopes, J.
name: Cujia, K. S.
name: Degen, C. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The active manipulation of nuclear spins with radio-frequency (RF) coils is at the heart of nuclear magnetic resonance (NMR) spectroscopy and spin-based quantum devices. Here, we present a microcoil transmitter system designed to generate strong RF pulses over a broad bandwidth, allowing for fast spin rotations on arbitrary nuclear species. Our design incorporates: (i) a planar multilayer geometry that generates a large field of 4.35 mT per unit current, (ii) a 50 Ohm transmission circuit with a broad excitation bandwidth of approximately 20 MHz, and (iii) an optimized thermal management for removal of Joule heating. Using individual 13C nuclear spins in the vicinity of a diamond nitrogen-vacancy (NV) center as a test system, we demonstrate Rabi frequencies exceeding 70 kHz and nuclear pi/2 rotations within 3.4 us. The extrapolated values for 1H spins are about 240 kHz and 1 us, respectively. Beyond enabling fast nuclear spin manipulations, our microcoil system is ideally suited for the incorporation of advanced pulse sequences into micro- and nanoscale NMR detectors operating at low (<1 T) magnetic field.
description: 8 pages, 5 figures. Submitted to Rev. Sci. Instr
PPFP Choices Kenya and Indonesia Community Influencer Key Informant Interview Guide
Creators: name: Charurat, Elaine
name: Breithaupt, Lindsay
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Kenya and Indonesia Community Influencer Key Informant Interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English and Bahasa version of the consent and interview tools (Kenyan interviews are completed in English).
PPFP Choices Kenya and Indonesia Community Influencer Key Informant Interview Guide
Creators: name: Breithaupt, Lindsay
name: Charurat, Elaine
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Kenya and Indonesia Community Influencer Key Informant Interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English and Bahasa version of the consent and interview tools (Kenyan interviews are completed in English).
Supplementarty equations, figures and tables from Assessing the relative importance of bacterial resistance, persistence and hyper-mutation for antibiotic treatment failure
Creators: name: Witzany, Christopher
name: Regoes, Roland R.
name: Igler, Claudia
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Computational Biology

description: To curb the rising threat of antimicrobial resistance, we need to understand the routes to antimicrobial treatment failure. Bacteria can survive treatment by using both, genetic and phenotypic mechanisms to diminish the effect of antimicrobials. We assemble empirical data showing that, for example, Pseudomonas aeruginosa infections frequently contain persisters, transiently non-growing cells unaffected by antibiotics (AB) and hyper-mutators, mutants with elevated mutation rates and thus higher probability of genetic resistance emergence. Resistance, persistence and hyper-mutation dynamics are difficult to disentangle experimentally. Hence, we use stochastic population modelling and deterministic fitness calculations to investigate the relative importance of genetic and phenotypic mechanisms for immediate treatment failure and establishment of prolonged, chronic infections. We find that persistence causes ‘hidden’ treatment failure with very low cell numbers if antimicrobial concentrations prevent growth of genetically resistant cells. Persister cells can regrow after treatment is discontinued and allow for resistance evolution in the absence of AB. This leads to different mutational routes during treatment and relapse of an infection. By contrast, hyper-mutation facilitates resistance evolution during treatment, but rarely contributes to treatment failure. Our findings highlight the time and concentration dependence of different bacterial mechanisms to escape AB killing, which should be considered when designing ‘failure-proof’ treatments.
PPFP Choices Kenya and Indonesia Postabortion In-Depth Interview Guide
Creators: name: Charurat, Elaine
name: Breithaupt, Lindsay
name: Kennedy, Sara
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Health Care
subject: 111707 Family Care
subject: FOS: Health sciences

description: This is the Postabortion In-Depth interview tool for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English, Bahasa, Kiswahili and Kimeru versions of the introduction script, recruitment script, and consent form, as well as the interview tool.
The Supersymmetric Origin of Matter
Creators: name: Balazs, C.
name: Carena, M.
name: Menon, A.
name: Morrissey, D. E.
name: Wagner, C. E. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Minimal Supersymmetric extension of the Standard Model (MSSM) can provide the correct neutralino relic abundance and baryon number asymmetry of the universe. Both may be efficiently generated in the presence of CP violating phases, light charginos and neutralinos, and a light top squark. Due to the coannihilation of the neutralino with the light stop, we find a large region of parameter space in which the neutralino relic density is consistent with WMAP and SDSS data. We perform a detailed study of the additional constraints induced when CP violating phases, consistent with the ones required for baryogenesis, are included. We explore the possible tests of this scenario from present and future electron Electric Dipole Moment (EDM) measurements, direct neutralino detection experiments, collider searches and the b -> s gamma decay rate. We find that the EDM constraints are quite severe and that electron EDM experiments, together with stop searches at the Tevatron and Higgs searches at the LHC, will provide a definite test of our scenario of electroweak baryogenesis in the next few years.
description: 30 pages, 14 figures
Traceability and the new CAP
Creators: name: Maraveyas, Napoleon N.
name: Doukas, Yannis El.
name: Maraveyas, Napoleon N.
name: Doukas, Yannis El.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Traceability
subject: CAP reforms
subject: Cross Compliance
subject: Market Orientation
subject: Rural Development

description: The Common Agricultural Policy (CAP) was strongly criticized for the food safety crises of the 1990s which included Bovine Spongiform Encephalopathy (BSE), dioxin, foot and mouth disease and swine fever to name a few. Even though the first rules on food safety date from the very early days of the EU, a need was recognized to replace a number of these rules accumulated through the years, whose implementation was difficult to monitor, with a simpler and more comprehensive approach. The result was the General Food Law (REGULATION (EC) No 178/2002). A core concept introduced was traceability, namely “the ability to trace and follow food, feed, and ingredients through all stages of production, processing and distribution”. Furthermore after the General Agreement on Tariffs and Trade (GATT) Agreements on Agriculture (AoA) stated at the Uruguay Round and the current negotiations within the World Trade Organization (WTO), the EU has to transform a number of domestic support policies in order to be compliant with the Green Box criteria and non- or minimally trade distorting. Lastly taking into account the great concern of consumers worldwide for safe and healthy agricultural and food products, traceability would be suitable for motivating the European agricultural and food producers to differentiate their products from other competitors. The aim of this paper is to study how traceability has been included within the framework of the new CAP. In the first part of this paper we review the ways in which the issues of food safety were taken into consideration in the various reforms of the CAP from the beginning until the Agenda 2000. In the second part we briefly present the objectives and aims of the General Food Law, paying special attention to the meaning and content of traceability. Finally, in the third part we investigate the ways in which the issue of traceability has affected the shaping of the Mid-term Review of the CAP (2003) and the “Health check on CAP” (2008) through the aspects of Cross Compliance, Market Orientation and Rural Development.
Correlating $B\to K^{(\ast)} ν\barν$ and flavor anomalies in SMEFT
Creators: name: Chen, Feng-Zhi
name: Wen, Qiaoyi
name: Xu, Fanrong
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The recent measurement of $\mathcal{B}(B^+\to K^+ν\barν)$ by Belle-II reveals a $2.8~σ$ deviation from the Standard Model (SM) prediction. Combining this with a prior Belle measurement of $\mathcal{B}(B^{0}\to K^{\ast0}ν\barν)$, the upper bound of the ratio $\mathcal{B}(B^{0}\to K^{\ast0}ν\barν)/\mathcal{B}(B^+\to K^+ν\barν)$ is notably smaller than the SM prediction. In this work, tensions are solved within the framework of Standard Model Effective Field Theory (SMEFT). Flavor observables, described by Low-Energy Effective Field Theory (LEFT) operators, are interconnected by SMEFT at the electroweak scale. Utilizing a set of only four SMEFT operators, the FCNC process $b\to sν\barν$ is correlated with $b\to s\ell^+\ell^-$, $b\to u_i\ell\barν$, $u_j\to s\ell\barν$, $u_j\to u_iν\barν$, and $u_j\to u_i\ell^+\ell^-$. Subsequently, we obtain the latest ranges of Wilson coefficients for these four operators through a global fit that accommodates flavor anomalies such as $R_{K^{(\ast)}}$, $R_{D^{(\ast)}}$, and $\mathcal{B}(B\to K^{(\ast)}ν\barν)$. Our findings reveal that predictions for $\mathcal{B}(B^+\to τ^+ν_τ)$ and $\mathcal{B}(D_s^+\to τ^+ν_τ)$ align well with measured values from Belle and BESIII, based on the fitted coefficients. The predicted branching fraction for $B^0\to K^{\ast0}ν\barν$ is $(1.42\pm 0.74)\times 10^{-5}$, closely approaching the current experimental upper limit. Anticipation surrounds the rare decay $B_s\to τ^+ τ^-$, expected in the near future with a branching fraction on the order of $10^{-4}$.
description: 22 pages, 2 figures, 3 tables, final version accepted in EPJC
Transmission security-responsible optimal scheduling of hydro-generator operations in a competitive environment
Creators: name: Cong, Yanling
Publisher: name: University of British Columbia
Year: 2009

description: Under the development of restructured electrical power industry, the competitive environment of transacting electricity among all the market participants creates more and more challenges to either suppliers or consumers. The goal of suppliers, who own the generating equipment, is to maximize their total profits by selling the electricity. The targets of distributors and consumers are to minimize their expense for purchasing the electricity. With the uncertainty of system demand and electricity market price, it is even more difficult to achieve the objectives of both suppliers and consumers. This thesis presents an approach for short-term optimal hydro-generation scheduling considering transmission system security constraints based on uncertain load and electricity market price. The possible range of uncertain load is forecasted by fuzzy regression model, which was developed by an earlier work in our research group. The market price database is obtained from the analysis of Pennsylvania-New Jersey-Maryland (PJM) market price. The mixed integer nonlinear unit commitment problem is solved by Lagrangian relaxation technique. Securityconstrained economic dispatch is obtained by solving Lagrangian function with first gradient method for the equality constraints. After the feasible solution is reached with all the equality constraints satisfied, the heuristic search consisting of unit substitution and unit de-commitment is used to adjust the solution to satisfy all the inequality constraints. The proposed approach improves the final solution to be the best one achieving the global optimal solution. This approach is tested on a numerical example based on BC Hydro 500 kV network configuration. The results show this approach is applicable to optimize the system operation and gain the maximum profits for power suppliers, while maintaining the system security and reliability.