cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Finite temperature tensor network study of the Hubbard model on an infinite square lattice
Creators: name: Sinha, Aritra
name: Rams, Marek M.
name: Czarnik, Piotr
name: Dziarmaga, Jacek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Hubbard model is a longstanding problem in the theory of strongly correlated electrons and a very active one in the experiments with ultracold fermionic atoms. Motivated by current and prospective quantum simulations, we apply a two-dimensional tensor network, an infinite projected entangled pair state, evolved in imaginary time by the neighborhood tensor update algorithm working directly in the thermodynamic limit. With U(1)xU(1) symmetry and the bond dimensions up to 29, we generate thermal states down to the temperature of 0.17 times the hopping rate. We obtain results for spin and charge correlators, unaffected by boundary effects. The spin correlators, measurable in prospective ultracold atoms experiments attempting to approach the thermodynamic limit, provide evidence of disruption of the antiferromagnetic background with mobile holes in a slightly doped Hubbard model. The charge correlators reveal the presence of hole-doublon pairs near half filling and signatures of hole-hole repulsion on doping. We also obtain specific heat in the slightly doped regime.
description: 18 pages; minor changes; accepted in PRB
Action-based distribution functions for spheroidal galaxy components
Creators: name: Posti, Lorenzo
name: Binney, James
name: Nipoti, Carlo
name: Ciotti, Luca
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an approach to the design of distribution functions that depend on the phase-space coordinates through the action integrals. The approach makes it easy to construct a dynamical model of a given stellar component. We illustrate the approach by deriving distribution functions that self-consistently generate several popular stellar systems, including the Hernquist, Jaffe, and Navarro, Frenk and White models. We focus on non-rotating spherical systems, but extension to flattened and rotating systems is trivial. Our distribution functions are easily added to each other and to previously published distribution functions for discs to create self-consistent multi-component galaxies. The models this approach makes possible should prove valuable both for the interpretation of observational data and for exploring the non-equilibrium dynamics of galaxies via N-body simulation.
description: 9 pages, 8 figures, 1 appendix, MNRAS accepted
Dust Attenuation in High Redshift Galaxies -- 'Diamonds in the Sky'
Creators: name: Scoville, Nick
name: Faisst, Andreas
name: Capak, Peter
name: Kakazu, Yuko
name: Li, Gongjie
name: Steinhardt, Charles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use observed optical to near infrared spectral energy distributions (SEDs) of 266 galaxies in the COSMOS survey to derive the wavelength dependence of the dust attenuation at high redshift. All of the galaxies have spectroscopic redshifts in the range z = 2 to 6.5. The presence of the CIV absorption feature, indicating that the rest-frame UV-optical SED is dominated by OB stars, is used to select objects for which the intrinsic, unattenuated spectrum has a well-established shape. Comparison of this intrinsic spectrum with the observed broadband photometric SED then permits derivation of the wavelength dependence of the dust attenuation. The derived dust attenuation curve is similar in overall shape to the Calzetti curve for local starburst galaxies. We also see the 2175 Å~bump feature which is present in the Milky Way and LMC extinction curves but not seen in the Calzetti curve. The bump feature is commonly attributed to graphite or PAHs. No significant dependence is seen with redshift between sub-samples at z = 2 - 4 and z = 4 - 6.5. The 'extinction' curve obtained here provides a firm basis for color and extinction corrections of high redshift galaxy photometry.
description: accepted ApJ
Design and implementation of a global site assessment survey among HIV clinics participating in the International epidemiology Databases to Evaluate AIDS (IeDEA) research consortium
Creators: name: Parcesepe A.
name: William Wester C.
name: Hossmann S.
name: Freeman E.
name: Kimmel A.
name: Lancaster K.E.
name: Brazier E.
name: Duda S.N.
name: Maruri F.
name: Ballif M.
name: Musick B.
name: Christ B.
name: Golub J.E.
name: Enane L.A.
name: Humphrey J.
name: Freeman A.
name: Nash D.
Publisher: name: Public Library of Science
Year: 2023

description: Introduction Timely descriptions of HIV service characteristics and their evolution over time across diverse settings are important for monitoring the scale-up of evidence-based program strategies, understanding the implementation landscape, and examining service delivery factors that influence HIV care outcomes. Methods The International epidemiology Databases to Evaluate AIDS (IeDEA) consortium undertakes periodic cross-sectional surveys on service availability and care at participating HIV treatment sites to characterize trends and inform the scientific agenda for HIV care and implementation science communities. IeDEA’s 2020 general site assessment survey was developed through a consultative, 18-month process that engaged diverse researchers in identifying content from previous surveys that should be retained for longitudinal analyses and in developing expanded and new content to address gaps in the literature. An iterative review process was undertaken to standardize the format of new survey questions and align them with best practices in survey design and measurement and lessons learned through prior IeDEA site assessment surveys. Results The survey questionnaire developed through this process included eight content domains covered in prior surveys (patient population, staffing and community linkages, HIV testing and diagnosis, new patient care, treatment monitoring and retention, routine HIV care and screening, pharmacy, record-keeping and patient tracing), along with expanded content related to antiretroviral therapy (differentiated service delivery and roll-out of dolutegravir-based regimens); mental health and substance use disorders; care for pregnant/postpartum women and HIV-exposed infants; tuberculosis preventive therapy; and pediatric/adolescent tuberculosis care; and new content related to Kaposi’s sarcoma diagnostics, the impact of COVID-19 on service delivery, and structural barriers to HIV care. The survey was distributed to 238 HIV treatment sites in late 2020, with a 95% response rate. Conclusion IeDEA’s approach for site survey development has broad relevance for HIV research networks and other priority health conditions.
Parametric amplification of electromagnetic waves produced by a flux-flow-oscillator made of YBaCuO Josephson junction arrays
Creators: name: Chesca, Boris
name: John, Daniel
name: Gaifullin, Marat
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We observe parametric amplification of electromagnetic (EM) waves produced by a flux-flow oscillator made of YBa2Cu3O7 Josephson junctions arrays coupled to the resonant modes of a millimeter wave Fabry-Perot resonator at a pump frequency fP=45 GHz. For temperatures in the range (30-45) K the frequency fS of the EM signal to be amplified could be tuned continuously in the range (1-25) GHz by an applied B-field induced flux with a one-flux-quantum periodicity. Consequently, we measured a significant parametric gain that is almost frequency independent, with a maximum of (8-10.4) dB reached at 40K. For temperatures in the range (14-30) K the magnetic field tunability of fS is gradually suppressed to a minimum of (1-5) GHz range where a parametric gain between (5-6) dB was measured. With an appropriate adjustment of design/fabrication parameters our results suggests that the development of tunable MW generators/detectors, as well as parametric amplifiers made of high transition temperature superconductors and operating in a wide range of temperatures (10 mK-77K) is a reasonable and appealing possibility.
description: 14 pages, 6 figures
Sport culture and communication among middle school athletes, parents, and staff: A qualitative study
Creators: name: Kerr Z.Y.
name: Gildner P.
name: Chandran A.
name: Kossman M.K.
name: Callahan C.E.
name: Nedimyer A.K.
name: Parker S.K.
name: Register-Mihalik J.K.
name: Kostogiannes V.
Publisher: name: Public Library of Science
Year: 2023

description: Middle school (MS) is an intermediary level of education between elementary and secondary school that typically includes students aged 10–15 years. There is limited research within the MS sport setting, particularly related to sport-related injury prevention. This qualitative study aimed to better understand the sport culture within MS sports and the communication strategies used among invested groups (i.e., athletes, parents, staff inclusive of coaches and school nurses). Semi-structured interviews were conducted with 19 athletes, 20 parents, and 18 staff (e.g., coaches, school nurses) from seven MS in two school districts during the 2018/19 and 2019/20 school years. Topics focused on understanding school- and sport-related factors related to education, safety, and communication. Analysis used a consensual qualitative research tradition, in which the research team discussed individually developed themes and categories from transcribed interviews, with the goal of coming to a consensus and creating a codebook. Throughout the coding process, the research team would reconvene to discuss coding decisions until consensus was reached. This study focuses on the themes of sport culture and communication. Dominant categories identified within sport culture related to participants noting why they were interested in MS sports, and their struggles with their perceived roles and engagement (e.g., helping parents stay engaged, finding coaches, oversight of school nurses). Competitiveness and safety could have conflicting roles and priority. Dominant categories identified within communication centered around limited communication between coaches and parents. Technological assistance (e.g., phone apps, websites) was available, but often varied by school and sport. Concussions were seldom discussed unless during the preseason meeting or when one occurred. Findings highlight that the MS sport settings may struggle with incorporating primary prevention into their cultures and ensuring reliable communication among individuals. Novel and tailored approaches to injury prevention are needed to help ensure buy-in and proper implementation.
Assessing the relationship between the alternative metrics of visibility and social bookmarking with citation index in PLOS Altmetrics
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: This article aims to measure the relationship between metrics of visibility and bookmarking in social platforms (Citeulike, Mendeley and Figshare) with citation counts in Scopus, Web of Science, PubMed central and Crossref. Current study is original in terms of objective and the data gathering scheme is descriptive of correlation type with a citation analysis approach. The population in this study is consists of 90,728 research papers which published in PLOS between 2009 and 2013. A sample of 1892 samples was chosen based on Cochran formula. The results showed that the visibility, Citeulike and Mendeley bookmarking counts have significant positive correlation with citations in all of the investigated systems. Conversely, social bookmarking counts on Figshare showed significant negative correlation with citations. Visibility metric has significant positive correlation with bookmarking counts in Citeulike and Mendeley, while it does not correlate with social bookmarking metric on Figshare. The results of this study suggest sharing scientific publications in social networks such as Mendeley, may increases the visibility and the future citations.
Improved magneto-optical trapping of a diatomic molecule
Creators: name: McCarron, D. J.
name: Norrgard, E. B.
name: Steinecker, M. H.
name: DeMille, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present experimental results from a new scheme for magneto-optically trapping strontium monofluoride (SrF) molecules, which provides increased confinement compared to our original work. The improved trap employs a new approach to magneto-optical trapping presented by M. Tarbutt, \emph{arXiv preprint} 1409.0244, which provided insight for the first time into the source of the restoring force in magneto-optical traps (MOTs) where the cycling transition includes dark Zeeman sublevels (known as type-II MOTs). We measure a radial spring constant $20\times$ greater than in our original work with SrF, comparable to the spring constants reported in atomic type-II MOTs. We achieve a trap lifetime $τ_{\rm{MOT}}=136(2)$~ms, over $2\times$ longer than originally reported for SrF. Finally, we demonstrate further cooling of the trapped molecules by briefly increasing the trapping lasers' detunings. Our trapping scheme remains a straightforward extension of atomic techniques and marks a step towards the direct production of large, dense, ultracold molecular gases via laser cooling.
description: 18 pages, 6 figures
The influence of magnetic vortices motion on the inverse ac Josephson effect in asymmetric arrays
Creators: name: Chesca, Boris
name: Gaifullin, Marat
name: John, Daniel
name: Cox, Jonathan
name: Savelev, Sergey
name: Mellor, Christopher
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on the influence a preferential magnetic vortices motion has on the magnitude of the inverse ac Josephson effect (the appearance of dc current Shapiro steps) and the coherent operation of asymmetrical parallel arrays of YBaCuO Josephson junctions (JJ) irradiated with microwave (MW) radiation in the presence of an applied magnetic field B. The preferential direction of motion of the Josephson vortices is due to the asymmetry-induced ratchet effect and has a dramatic impact: for a particular positive dc bias current I when the flux-flow is robust multiple pronounced Shapiro-steps are observed consistent with a coherent operation of the array. This suggests an efficient emission/detection of MW in related applications. In contrast, when we reverse the direction of I, the flux-flow is reduced and the Shapiro-steps are strongly suppressed due to a highly incoherent operation that suggests an inefficient emission/detection of MW. Remarkably, by changing B slightly, the situation is reversed: Shapiro steps are now suppressed for a positive I, while well pronounced for a reverse current -I. Our results suggest that a preferential vortex-flow has a very significant impact on the coherent MW operation of superconducting devices consisting of either multiple JJs or a single long JJ asymmetrically biased. This is particular relevant in the case of flux-flow oscillators for sub-terahertz integrated-receivers, flux-driven Josephson (travelling-wave) parametric amplifiers, or on-chip superconducting MW generators which usually operate at bias currents in the Shapiro step region.
description: 15 pages, 5 figures that includes a figure in the Supplementary material
Combined Effects of $f(R)$ Gravity and Massive Neutrinos on the Turn-Around Radii of Dark Matter Halos
Creators: name: Lee, Jounghun
name: Baldi, Marco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new statistics based on the turn-around radii of cluster halos to break the dark sector degeneracy between the $Λ$CDM model and the alternative ones with $f(R)$ gravity and massive neutrinos ($ν$) characterized by the strength of the fifth force, $\vert f_{R0}\vert$, and the total neutrino mass, $M_ν$. Analyzing the rockstar halo catalogs at the present epoch from the {\small DUSTGRAIN}-{pathfinder} $N$-body simulations performed for four different cosmologies, namely, $Λ$CDM ($\vert f_{R0}\vert=0$, $M_ν=0.0$eV), fR6 ($\vert f_{R0}\vert=10^{-6}$, $M_ν=0.0$eV), fR6+$0.06$eV ($\vert f_{R0}\vert=10^{-6}$, $M_ν=0.06$eV) and fR5+$0.15$eV ($\vert f_{R0}\vert=10^{-5}$, $M_ν=0.15$eV), which are known to yield very similar conventional statistics to one another. For each model, we select those cluster halos which do not neighbor any other larger halos in their bound zones and construct their bound-zone peculiar velocity profiles at $z=0$. Then, we determine the radial distance of each selected halo at which the bound-zone velocity becomes equal to the recession speed of the Hubble flow as its turn around radius, and evaluate the cumulative probability distribution of the ratios of the turn-around radii to the virial counterparts, $P(r_{t}/r_{v}\ge α)$. The degeneracy between the fR6 and fR5+$0.15$eV models is found to be readily broken by the $10σ_{ΔP}$ difference in the value of $P(α=4)$, while the $3.2σ_{ΔP}$ difference between the $Λ$CDM and fR6+$0.06$eV models is detected in the value of $P(α=8.5)$. It is also found that the four models yield smaller differences in $P(α)$ at higher redshifts.
description: Accepted for publication in ApJ, 6 figures, 1 table
A survey of Users view about the factors affecting the intention of using databases with emphasis on flow theory
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: Goal:The current research studies the factors affecting the intention to use databases by academic users, emphasizing the flow theory. Method: A research conceptual model was developed in order to create the concepts and hypotheses and the relationships between them. Different variables were considered in the research conceptual model including the skill, challenge, interaction, and control as the endogenous variables while the intention to use, exploratory usage, and the impaired perception of time were regarded as exogenous variables. The flow experience was also taken as the intermediary variable. The questionnaires, as the data-collecting tools, were designed by the researcher through studying texts and creating a conceptual framework taken from the flow experience in psychology. The statistical population was the postgraduate students (Master's Degree and PhD) in Yazd University (5,113 people) in the Iranian calendar year 1392 (ended March 20, 2014). The Structural Equation Modeling (SEM) and Lisrel software were used for hypothesis test and data analysis respectively. Validity of the questionnary was done by confirmatory factor analysis. Finding: Analyzing the structural model suggested that skill, challenge, and interaction had positive relationships with the flow experience with ratios of 0.63, 0.33, 0.41 respectively. The flow experience had a strong positive impact on the intention to use, the exploratory usage and the time distortion. No positive relationship was recognized between the control and the flow experience. Results: The results showed that the flow Theory is useful in an environment where the user has interaction with the database, except for the control structure. Since the experience flow is affected by user interaction, skill, sense and perception of databases it brings users satisfaction. This will lead to re- using, searching and navigating in on-line environment. The research findings consider a crucial factor as the variable which depends on the experience flow. Such a factor has a serious and effective influence on the behavior of database users, so that the user decides to use and search the database without a sense of time.
title: Organizing in, through, and for place: the role of place in cross-sector partnerships, social enterprise, and community-based enterprise
Creators: name: Brenton, Jennifer N.
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Sustainability challenges, like climate change and extreme poverty, are increasingly recognized, in practice and research, as the most pressing dilemmas of this day and age. Despite the global scale and scope of these challenges, a growing body of research has recognized that these challenges manifest and are felt in local places. In addition, different forms of organizing designed to address these issues and create social impact have garnered attention in organizational research, including cross-sector partnerships and social enterprises. Despite the growing literature on these forms of organizing, research has yet to fully explore how these organizations interact with and leverage place to achieve their goals and social missions. In addition, organizational scholars have begun to consider the role of organizations, including social and community-based enterprises, in the development and regeneration of local communities. However, more research is needed to further our understanding of the ways in which these organizations leverage their embeddedness in place to shape and drive community development. My research seeks to advance existing research by exploring the role of place in organizing for sustainability through three qualitative case studies in a manuscript-style thesis. These case studies use place, including the natural, built, cultural, and social dimensions of geographic locations, as a common theme to examine three distinct but interlinked contexts where sustainability issues are addressed: cross-sector partnerships, social enterprises, and community-based enterprises. The first manuscript in this collection explores the role of place in facilitating cross-sector partnerships, the second explores the role of embeddedness in place in social entrepreneurship, and the final manuscript explores how place can be leveraged by community-based enterprises to enable long-term local impact. My research also draws upon principles of engaged scholarship and involves the co-creation of knowledge with community research partners to mobilize findings and address local challenges. This thesis builds mid-range organizational theory by engaging with the concept of place from a multidisciplinary perspective to advance our understanding of cross-sector partnerships, social enterprises, and community-based enterprises. The main findings of this body of research highlight that place can be more than a backdrop or context for organizations working to address sustainability challenges. Rather, place, and its many dimensions, can be leveraged to facilitate cross-sector partnerships, navigate tensions of social entrepreneurship, and advance community development initiatives.
Leibniz algebras associated with representations of filiform Lie algebras
Creators: name: Ayupov, Sh. A.
name: Camacho, L. M.
name: Khudoyberdiyev, A. Kh.
name: Omirov, B. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17A32, 17B30, 17B10

description: In this paper we investigate Leibniz algebras whose quotient Lie algebra is a naturally graded filiform Lie algebra $n_{n,1}.$ We introduce a Fock module for the algebra $n_{n,1}$ and provide classification of Leibniz algebras $L$ whose corresponding Lie algebra $L/I$ is the algebra $n_{n,1}$ with condition that the ideal $I$ is a Fock $n_{n,1}$-module, where $I$ is the ideal generated by squares of elements from $L$.
description: 15 pages
LEA_D4.2 Recommendations digital tools/methods for increased dialogue and defragmentation of public demand
Creators: name: Clements, Kati
name: Sikström, Pieta
name: McLennan, Ashleigh
name: Henriques, Andre
Publisher: name: Zenodo
Year: 2020
Subjects: procurer
supplier
innovation procurement dialogue

description: Dialogue between procurers and suppliers is vital because the failure of technology development projects is still relatively high and one of the key success factors is the smooth dialogue in between the supply and demand sides of the process. (Liu et al., 2011) One of the major lessons learned in the previous PCP project IMAILE was that the dialogue between supply and demand must start early and there should be means to ensure that the different parties are involved in the discourse on the same level (Clements & Wallin, 2017). This deliverable D4.2 presents recommended tools for increasing dialogue and defragmentation of public demand. In this work, LEA Project identified available digital tools and methods for innovative procurement dialogue. These channels were then analysed through stakeholder interviews and expert statements on how they can be utilised effectively. This document also contains dialogue process model involving all key stakeholders of the innovative procurement and demonstrates the complexity of the innovation procurement dialogue through an example dialogue. Supply and demand side interaction and understanding are fundamental concepts to create a sustainable, inclusive and knowledge-based growth within Learning Technology 2020 and beyond based on the following actual situation. The demand side consists mainly of procuring authorities on local and regional level regulated by the public procurement law. In brief these organizations in general lack a deeper understanding and knowledge 5 about learning technologies in order to purchase smart and future-oriented innovations to improve their Education services. The supply side (big companies, SMEs, start-ups) industry and R&I institutes risks facing “the valley of death“ to get their commercial product on the market. In brief the industry in general lack a deeper understanding of demand / user needs aligned with the societal challenges of the public sector.
Assessing suicidality during the SARS-CoV-2 pandemic: Lessons learned from adaptation and implementation of a telephone-based suicide risk assessment and response protocol in Malawi
Creators: name: Akiba C.F.
name: Dussault J.M.
name: Kanzoole K.
name: Pence B.W.
name: Landrum K.R.
name: Akello H.
name: Chikalimba H.
name: Kulisewa K.
name: Malava J.K.
name: Udedi M.
name: Gaynes B.N.
name: Hosseinipour M.C.
name: Zimba C.C.
Publisher: name: Public Library of Science
Year: 2023

description: The SARS-CoV-2 pandemic led to the rapid transition of many research studies from in-person to telephone follow-up globally. For mental health research in low-income settings, telefollow-up raises unique safety concerns due to the potential of identifying suicide risk in participants who cannot be immediately referred to in-person care. We developed and iteratively adapted a telephone-delivered protocol designed to follow a positive suicide risk assessment (SRA) screening. We describe the development and implementation of this SRA protocol during follow-up of a cohort of adults with depression in Malawi enrolled in the Sub-Saharan Africa Regional Partnership for Mental Health Capacity Building (SHARP) randomized control trial during the COVID-19 era. We assess protocol feasibility and performance, describe challenges and lessons learned during protocol development, and discuss how this protocol may function as a model for use in other settings. Transition from in-person to telephone SRAs was feasible and identified participants with suicidal ideation (SI). Follow-up protocol monitoring indicated a 100% resolution rate of SI in cases following the SRA during this period, indicating that this was an effective strategy for monitoring SI virtually. Over 2% of participants monitored by phone screened positive for SI in the first six months of protocol implementation. Most were passive risk (73%). There were no suicides or suicide attempts during the study period. Barriers to implementation included use of a contact person for participants without personal phones, intermittent network problems, and pre-paid phone plans delaying follow-up. Delays in follow-up due to challenges with reaching contact persons, intermittent network problems, and pre-paid phone plans should be considered in future adaptations. Future directions include validation studies for use of this protocol in its existing context. This protocol was successful at identifying suicide risk levels and providing research assistants and participants with structured follow-up and referral plans. The protocol can serve as a model for virtual SRA development and is currently being adapted for use in other contexts.
Compatibility of University Websites with Metadata Standards: A Case Study on Shahed University
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: The present study has been conducted to study the Shahed University's website in terms of compatibility with metadata standards (Dublin core, Mark XML. and descriptive object-oriented) and HTML meta tags. This study is a descriptive survey, and the purpose of the application is the analysis of web pages using a prepared checklist to determine the amount of presence of metadata elements. The statistics sample consists of 291 pages of various pages of Shahed university webpages. The results showed that the web designers of Shahed University have used more meta tags (mean 168.2 presence in webpages). However, in none of the pages reviewed, metadata standards are not present. Considering the antiquity of meta tags, little Attention in the meta tags and metadata can be caused by a lack of accurate understanding of the structures and importance of this elements in the process of indexing and organizing content by designers. Therefore, the use of information science experts' opinions that are aware of metadata standards and advantages of using them is recommended in designing and editing webpages.
Additional file 1 of The impact of eHealth on relationships and trust in primary care: a review of reviews
Creators: name: Ramachandran, Meena
name: Brinton, Christopher
name: Wiljer, David
name: Upshur, Ross
name: Gray, Carolyn Steele
Publisher: name: figshare
Year: 2024
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Search strategy.
Measuring the equation of state of the high-z intergalactic medium using curvature statistics
Creators: name: Padmanabhan, Hamsa
name: Srianand, R.
name: Choudhury, T. Roy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using hydrodynamical simulations, we explore the use of the mean and percentiles of the curvature distribution function to recover the equation of state of the high-$z$ ($2 < z < 4$) intergalactic medium (IGM). We find that the mean and percentiles of the absolute curvature distribution exhibit tight correlation with the temperatures measured at respective characteristic overdensities $\barΔ_i$'s at each redshift. Hence, they provide complementary probes of the same underlying temperature-density distribution, and can in principle be used to simultaneously recover both parameters $T_0$ and $γ$ of the IGM effective equation of state. We quantify the associated errors in the recovered parameters $T_0$ and $γ$ from the intrinsic scatter in the characteristic overdensities and the uncertainties in the curvature measurement.
description: 5 pages, 4 figures, 1 table; version accepted for publication in MNRAS Letters
The classification of WebQual dimensions based on the asymmetric impact-performance of Kano's customer satisfaction model: A case study of the Tehran virtual university website
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: The extension of the Internet and World Wide Web has created new opportunities as well as new challenges for institutions and individuals who are either receiving or delivering education. Electronic learning is one of the most important breakthroughs in education in which the website is the first access point that users receive educational services provided. Therefore, website quality should be considered as an important factor resulted in the success of virtual learning and studied in a more detailed manner from the e-learners’ perspective. This paper aims to classify the quality aspects of the Tehran virtual university website (webqual 4.0) according to the Kano model of customer satisfaction and determine the asymmetric impact of the webqual 4.0 dimensions’ performance on overall user satisfaction in order to prioritize those dimensions in resource allocation, as well as sensitize the managers of the mentioned website. This is a descriptive-survey and applied study, and also a cross-sectional one. The study population included Tehran University students studying in virtual courses and the data collection tool was the questionnaire of webqual 4.0, as well as, a researcher-made questionnaire to measure end-user satisfaction. Multiple regression analysis was used to investigate the impact of performance asymmetry. The result showed that usability dimension was the high-performance excitement factor, information quality dimension was a high-performing basic factor, and service interaction dimension had low performance scores and was a basic factor. And finally, a short-term plan to improve service interaction dimension to reduce user discontent and a long-term plan to better both information quality and usability dimensions to increase user satisfaction was proposed.
Surrogate Modeling-Driven Physics-Informed Multi-fidelity Kriging: Path Forward to Digital Twin Enabling Simulation for Accident Tolerant Fuel
Creators: name: Kobayashi, Kazuma
name: Daniell, James
name: Usman, Shoaib
name: Kumar, Dinesh
name: Alam, Syed
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: The Gaussian Process (GP)-based surrogate model has the inherent capability of capturing the anomaly arising from limited data, lack of data, missing data, and data inconsistencies (noisy/erroneous data) present in the modeling and simulation component of the digital twin framework, specifically for the accident tolerant fuel (ATF) concepts. However, GP will not be very accurate when we have limited high-fidelity (experimental) data. In addition, it is challenging to apply higher dimensional functions (>20-dimensional function) to approximate predictions with the GP. Furthermore, noisy data or data containing erroneous observations and outliers are major challenges for advanced ATF concepts. Also, the governing differential equation is empirical for longer-term ATF candidates, and data availability is an issue. Physics-informed multi-fidelity Kriging (MFK) can be useful for identifying and predicting the required material properties. MFK is particularly useful with low-fidelity physics (approximating physics) and limited high-fidelity data - which is the case for ATF candidates since there is limited data availability. This chapter explores the method and presents its application to experimental thermal conductivity measurement data for ATF. The MFK method showed its significance for a small number of data that could not be modeled by the conventional Kriging method. Mathematical models constructed with this method can be easily connected to later-stage analysis such as uncertainty quantification and sensitivity analysis and are expected to be applied to fundamental research and a wide range of product development fields. The overarching objective of this chapter is to show the capability of MFK surrogates that can be embedded in a digital twin system for ATF.
Revising the ages of planet-hosting stars
Creators: name: Bonfanti, Andrea
name: Ortolani, Sergio
name: Piotto, Giampaolo
name: Nascimbeni, Valerio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This article aims to measure the age of planet-hosting stars (SWP) through stellar tracks and isochrones computed with the \textsl{PA}dova \& T\textsl{R}ieste \textsl{S}tellar \textsl{E}volutionary \textsl{C}ode (PARSEC). We developed algorithms based on two different techniques for determining the ages of field stars: \emph{isochrone placement} and \emph{Bayesian estimation}. Their application to a synthetic sample of coeval stars shows the intrinsic limits of each method. For instance, the Bayesian computation of the modal age tends to select the extreme age values in the isochrones grid. Therefore, we used the isochrone placement technique to measure the ages of 317 SWP. We found that $\sim6\%$ of SWP have ages lower than 0.5 Gyr. The age distribution peaks in the interval [1.5, 2) Gyr, then it decreases. However, $\sim7\%$ of the stars are older than 11 Gyr. The Sun turns out to be a common star that hosts planets, when considering its evolutionary stage. Our SWP age distribution is less peaked and slightly shifted towards lower ages if compared with ages in the literature and based on the isochrone fit. In particular, there are no ages below 0.5 Gyr in the literature.
description: 16 pages, 18 figures. Accepted by A&A
Evaluating the effectiveness of Neuro web design model in business websites (observational study)
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: By combining Neuromarketing، social psychology and e-commerce، a new area has been added to the world of consumer neuroscience named Nero web design. The practical Neuro business web design model consists of 67 applicable and implementable techniques in business websites and has been gathered in three sequential phases: attraction، message delivery، and reshaping with the aim of negotiating to the visitor’s brain to increase the conversion rate on a business website. Eight websites have been implemented to evaluate the effectiveness of this model: A simple website without using the model، a complete website (using all 67 techniques in the model)، and six other websites that differentiate in reshaping groups. The unique and targeted visitors for each websites obtained through internet advertisements. They became 957 new visitors altogether. In the period of two months of observational studying، Website heat maps that track the mouse movements of visitors، showed that visitors attracted to all parts of the complete website homepage particularly order form module but not so for the simple website. This reflects the success of attraction phase of the model. The results showed that the conversion rate of each of the seven model websites as compared to simple website is greatly high and even more than the international average conversion rate.
Economic Aspects of Pecan Production and Marketing: Arkansas, Florida, South Carolina, Mississippi, New Mexico, Georgia
Creators: name: McElroy, Robert C.
name: Powell, Jules V.
name: McElroy, Robert C.
name: Powell, Jules V.
Publisher: name: Unknown
Year: 1963
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Marketing
subject: FOS: Economics and business

description: Excerpt from the report Summary: Pecans are an important source of income to growers throughout the Southern tier of States from North Carolina to New Mexico. The total crop of pecans consists of nuts from "both seedling and improved pecan trees. The size of the crop varies widely from year to year. Quality also varies among production areas in any given year and from year to year. Total production of pecans has trended upward and improved varieties are an increasing share of the total crop. This report presents production and marketing data obtained from pecan growers in Arkansas, Florida, Georgia, Mississippi, New Mexico, and South Carolina. Data were obtained from 576 pecan growers who owned 370,000 pecan trees, or 13 percent of the trees listed in the 1959 Census of Agriculture for the 6 States.
Nonlinear stochastic growth rates and redshift space distortions
Creators: name: Jennings, Elise
name: Jennings, David
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The linear growth rate is commonly defined through a simple deterministic relation between the velocity divergence and the matter overdensity in the linear regime. We introduce a formalism that extends this to a nonlinear, stochastic relation between $θ= \nabla \cdot v({\bf x},t)/aH$ and $δ$. This provides a new phenomenological approach that examines the conditional mean $< θ|δ>$, together with the fluctuations of $θ$ around this mean. We measure these stochastic components using N-body simulations and find they are non-negative and increase with decreasing scale from $\sim$10% at $k<0.2 h $Mpc$^{-1}$ to 25% at $k\sim0.45h$Mpc$^{-1}$ at $z = 0$. Both the stochastic relation and nonlinearity are more pronounced for halos, $M \le 5 \times 10^{12}M_\odot h^{-1}$, compared to the dark matter at $z=0$ and $1$. Nonlinear growth effects manifest themselves as a rotation of the mean $< θ|δ>$ away from the linear theory prediction $-f_{\tiny \rm LT}δ$, where $f_{\tiny \rm LT}$ is the linear growth rate. This rotation increases with wavenumber, $k$, and we show that it can be well-described by second order Lagrangian perturbation theory (2LPT) for $k < 0.1 h$Mpc$^{-1}$. The stochasticity in the $θ$ -- $δ$ relation is not so simply described by 2LPT, and we discuss its impact on measurements of $f_{\tiny \rm LT}$ from two point statistics in redshift space. Given that the relationship between $δ$ and $θ$ is stochastic and nonlinear, this will have implications for the interpretation and precision of $f_{\tiny \rm LT}$ extracted using models which assume a linear, deterministic expression.
description: 14 pages, 9 figures. Accepted for publication in MNRAS
Birth and prenatal care outcomes of Latina mothers in the Trump era: Analysis by nativity and country/region of origin
Creators: name: Dollar N.T.
name: Gutierrez C.
Publisher: name: Public Library of Science
Year: 2023

description: We examined whether and how birth outcomes and prenatal care utilization among Latina mothers changed over time across years associated with the Trump sociopolitical environment, using restricted-use birth records from the National Center for Health Statistics (NCHS). To assess potential variation among subpopulations, we disaggregated the analyses by maternal nativity and country/region of origin. Our results indicate that both US- and foreign-born Latina mothers experienced increasingly higher risks of delivering low birthweight (LBW) and preterm birth (PTB) infants over the years associated with Trump’s political career. Among foreign-born Latinas, adverse birth outcomes increased significantly among mothers from Mexico and Central America but not among mothers from Puerto Rico, Cuba, and South America. Levels of inadequate prenatal care utilization remained largely unchanged among groups who saw increases in LBW and PTB, suggesting that changes in prenatal care did not generally explain the observed worsening of birth outcomes among Latina mothers during the Trump era. Results from this study draw attention to the possibility that the Trump era may have represented a source of chronic stress among the Latinx population in the US and add to the growing body of literature linking racism and xenophobia in the sociopolitical environment to declines in health among Latinx people, especially among targeted groups from Mexico and Central America.
The development of a regulatory framework for the licensing of a fusion power plant
Creators: name: Lukacs, Matthew
Publisher: name: Imperial College London
Year: 2021

description: Determining an appropriate regulatory framework for fusion power plants (FPPs) is a key step in the development of fusion power. Decisions made in the near future regarding fusion regulation will have a significant impact on the deployment of FPPs in years to come, not just in the UK but internationally too. Whilst many countries are yet to decide on the best approach to regulating fusion, there are some countries (France, Canada, etc.) that have already decided FPPs will be regulated under the same framework as nuclear fission power plants (NPPs). The widespread adoption of an NPP approach could lead to unnecessarily onerous regulatory practices that are not justified by the hazard potential of FPPs. This thesis aims to draw on the current knowledge of FPPs and current regulatory regimes, both national and international, to determine an appropriate regulatory framework for FPPs. The key safety issues relating to FPPs are explored, including the current approach to fusion safety and methods of accident identification. The results of a sensitivity analysis to gauge the hazard of potential of FPPs are reported. When considering what is an appropriate regulatory system, it is important to remember that regulation should be based on the hazard potential (the unmitigated risk to the public) and not the mitigated risk. On the basis of FPP hazard potential and associated safety, security and safeguards analysis, four main FPP regulatory options for the UK are mapped out and analysed against criteria that are necessary to deliver an effective and efficient regulatory system. The most appropriate option, based upon a proportionate regulatory approach, suggests that a nuclear licensing framework should be adopted. This thesis then develops this proportionate licensing approach and explores how it can fit within the UK legal system.
The Role of Entrepreneurial Knowledge and Skills in Developing Digital Entrepreneurial Intentions in Public Universities in Hamedan Province
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: The main purpose of this study was to extend the Theory of Planned Behavior (TPB) to more comprehensively explain the formation of students’ digital entrepreneurial intentions.In particular, the extended TPB incorporates two critical constructs, namely entrepreneurial knowledge and skills into the original TPB model.Data were collected from 150 computer science students from four public universities in Hamedan province. The results of regression analysis showed that there was asignificant relationship between motivational factors such as attitudes, subjective norms and perceived behavioral control and digital entrepreneurial intentions. Also perceived behavioral control played the strongest role in the determination of digital entrepreneurial intentions.Furthermore, the results illustrated that entrepreneurial knowledge and skills significantly relate to digital entrepreneurial intentions. Based on the knowledge gained in this study, some recommendation were offered for developing entrepreneurial culture, knowledge and skillsin order topromoting digital entrepreneurship.