cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modulational instability and localized breather modes in the discrete nonlinear Schrödinger equation with helicoidal hopping
Creators: name: Stockhofe, J.
name: Schmelcher, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study a one-dimensional discrete nonlinear Schrödinger model with hopping to the first and a selected N-th neighbor, motivated by a helicoidal arrangement of lattice sites. We provide a detailed analysis of the modulational instability properties of this equation, identifying distinctive multi-stage instability cascades due to the helicoidal hopping term. Bistability is a characteristic feature of the intrinsically localized breather modes, and it is shown that information on the stability properties of weakly localized solutions can be inferred from the plane-wave modulational instability results. Based on this argument, we derive analytical estimates of the critical parameters at which the fundamental on-site breather branch of solutions turns unstable. In the limit of large N, these estimates predict the emergence of an effective threshold behavior, which can be viewed as the result of a dimensional crossover to a two-dimensional square lattice.
description: 15 pages, 9 figures
A Toolkit for Pediatric CT Dose Reduction in Community Hospitals
Creators: name: Shea, Christopher M.
name: Fordham, Lynn Ansley
name: Hartman, Terry
name: Sams, Cassandra
name: Ivanovic, Marija
name: Smith, J. Keith
name: Armao, Diane
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: "Eighty percent of success is just showing up."—Woody Allen Pediatric CT radiation dose optimization is a challenging process for pediatric-focused facilities and community hospitals alike. Ongoing experience and trial-and-error approaches to dose reduction in the large academic hospital setting may position these centers to help community hospitals that strive for CT quality improvement. We describe our hands-on approach in a pilot project to create a partnership between an academic medical center and a community hospital to develop a toolkit for implementing CT dose reduction. Our aims were to (1) assess the acceptability of an interactive educational program and electronic toolkit booklet, (2) conduct a limited test of the efficacy of the toolkit in promoting knowledge and readiness to change, and (3) assess the acceptability and practicality of a collaborative approach to implementing dose reduction protocols in community hospitals. In partnering with the community hospital, we found that they had size-specific radiation doses two to three times higher than those at our center. Survey results after a site visit with interactive educational presentations revealed an increase in knowledge, stronger opinions about the health risks of radiation from CT scans, and willingness and perceived ability to reduce pediatric CT doses.
Effect of neutron skin thickness on projectile fragmentation
Creators: name: Dai, Z. T.
name: Fang, D. Q.
name: Ma, Y. G.
name: Cao, X. G.
name: Zhang, G. Q.
name: Shen, W. Q.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The fragment production in collisions of $^{48,50}$Ca+$^{12}$C at 50 MeV/nucleon are simulated via the Isospin-Dependent Quantum Molecular Dynamics (IQMD) model followed by the {GEMINI code}. {By changing the diffuseness parameter of neutron density distribution to obtain different neutron skin size, the effects of neutron skin thickness ($δ_{np}$) on projectile-like fragments (PLF) are investigated. The sensitivity of isoscaling behavior to neutron skin size is studied, from which it is found that the isoscaling parameter $α$ has a linear dependence on $δ_{np}$. A linear dependence between $δ_{np}$ and the mean $N/Z$ [N(Z) is neutron(proton) number] of PLF is obtained as well.} The results show that thicker neutron skin will lead to smaller {isoscaling parameter} $α$ and N/Z. Therefore, it may be probable to extract information of neutron skin thickness from {isoscaling parameter} $α$ and N/Z.
description: 7 pages, 6 figures
Zitterbewegung of a heavy hole in presence of spin-orbit interactions
Creators: name: Biswas, Tutul
name: Chowdhury, Sandip
name: Ghosh, Tarun Kanti
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the $zitterbewegung$ of a heavy hole in presence of both cubic Rashba and cubic Dresselhaus spin-orbit interactions. On contrary to the electronic case, $zitterbewegung$ does not vanish for equal strength of Rashba and Dresselhaus spin-orbit interaction. This non-vanishing of $zitterbewegung$ is associated with the Berry phase. Due to the presence of the spin-orbit coupling the spin associated with the heavy hole precesses about an effective magnetic field. This spin precession produces a transverse spin-orbit force which also generates an electric voltage associated with $zitterbewegung$. We have estimated the magnitude of this voltage for a possible experimental detection of $zitterbewegung$.
description: 6 pages, 3 figures
Deliverable 3.12 Final implementation of the observing system: Fram Strait
Creators: name: Soltwedel, Thomas
name: Alliouane, Samir
name: Amice, Erwan
name: Chauvaud, Laurent
name: Gattuso, Jean-Pierre
name: Hagemann, Jonas
name: Hasemann, Christiane
name: Hofbauer, Michael
name: Lehmenhecker, Sascha
name: Mathias, Delphine
name: Richard, Gaëtan
Publisher: name: Zenodo
Year: 2021
Subjects: INTAROS
Arctic
Fram Strait
Ocean Observing System

description: This document describes the final implementation of new observing systems developed within the INTAROS project. It reports on initial results from the observing systems and describes ways for the delivery of data retrieved by these systems. AWI developed and tested the experimental system “arcFOCE” (arctic Free Ocean Carbon Enrichment) that enables scientists to study impacts of ocean acidification on small, sediment inhabiting deep-sea organisms. The first long-term experiment of the system was conducted from October 2018 till September 2019 at the LTER observatory HAUSGARTEN in the eastern Fram Strait. Sediment samples were taken to study anticipated changes in bacterial and meiofaunal numbers, biomasse and community composition due to artificially reduced pH values in bottom waters. All data from the initial arcFOCE experiment will finally be stored in the PANGAEA data repository. The lack of ship time in 2020 allowed to reconfigure and optimize the experimental setup. Short-term in-situ tests of the improved system will be carried out during the RV Polarstern expedition PS126 in June 2021; the next long-term deployment (one year) of the arcFOCE system is planned for 2022. CRNS-UIEM installed a passive acoustics system at Kongsfjorden, Svalbard, which is identical to another system already deployed and running in Greenland, to allow direct comparison of results from these monitoring systems in western and eastern part of the Fram Strait. Acoustic data from the two systems are available via SEANOE (https://www.seanoe.org) or SEXTANT (https://sextant.ifremer.fr/). Results from the acoustics system at Kongsfjorden showed that AIS (Automatic Identification System) data of vessels operating in the area and their acoustic propagation need to be combined with passive acoustic measurements to assess the effect of vessel noise on the acoustic soundscape. CNRS-LOV continued and improved their measurements at the AWIPEV CO2 time-series monitoring site in Kongsfjorden, Svalbard. Time-series data generated by in-situ sensors in the fjord and in a Ferrybox flow-through system at AWIPEV is, to our knowledge, the first one at such high frequency. Raw data from the deployed sensors are available in near real-time: https://awipev-co2.obs-vlfr.fr. Quality-controlled data will be uploaded to the World Data Center Pangaea as soon as the final samples will be received and analysed, sometime in 2021. Among the key results is the fact that the fjord is a net sink for CO2 throughout the year.
Heterogeneous nucleation on complex networks with mobile impurities
Creators: name: Shen, Chuansheng
name: Chen, Hanshuang
name: Hou, Zhonghuai
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the heterogeneous nucleation of Ising model on complex networks under a non-equilibrium situation where the impurities perform degree-biased motion controlled by a parameter α. Through the forward flux sampling and detailed analysis on the nucleating clusters, we find that the nucleation rate shows a nonmonotonic dependence on αfor small number of impurities, in which a maximal nucleation rate occurs at α=0 corresponding to the degree-uncorrelated random motion. Furthermore, we demonstrate the distinct features of the nucleating clusters along the pathway for different preference of impurities motion, which may be used to understand the resonance-like dependence of nucleation rate on the motion bias of impurities. Our theoretical analysis shows that the nonequilibrium diffusion of impurities can always induce a positive energy flux that can facilitate the barrier-crossing nucleation process. The nonmonotonic feature of the average value of the energy flux with αmay be the origin of our simulation results.
description: 6 pages, 5 figures. arXiv admin note: text overlap with arXiv:1202.4230
Travel Burden to Breast MRI and Utilization: Are Risk and Sociodemographics Related?
Creators: name: Alford-Teaster, Jennifer
name: Lee, Christoph I.
name: Henderson, Louise M.
name: Haas, Jennifer S.
name: Benkeser, David
name: Shi, Xun
name: Tosteson, Anna N.A.
name: Hill, Deirdre
name: Onega, Tracy
name: Hubbard, Rebecca A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Mammograms, unlike magnetic resonance imaging (MRI), are relatively geographically accessible. Additional travel time is often required to access breast MRI. However, the amount of additional travel time and whether it varies based on sociodemographic or breast cancer risk factors is unknown.
J=3/2 charmed hypertriton
Creators: name: Garcilazo, H.
name: Valcarce, A.
name: Carames, T. F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By solving exact three-body equations, we study the three-baryon system with charm $+1$. We look for possible bound states using baryon-baryon interactions obtained from a chiral constituent quark model. The smaller effect of the $Λ_c \leftrightarrow Σ_c$ conversion reverses the order of the $(I,J)=(0,1/2)$ and $(I,J)=(0,3/2)$ states, rather close on the strange sector. The diminishing of the kinetic energy due to the large reduced mass gives rise to a bound state in the $(I,J)=(0,3/2)$ channel. After correcting for Coulomb effects the binding energy would be between 140 and 715 keV.
description: 12 pages, 5 figures. To appear in Phys. Rev. C. arXiv admin note: text overlap with arXiv:hep-ph/0701275
Lung Cancer Screening Practices in North Carolina CT Facilities
Creators: name: Molina, Paul L.
name: Benefield, Thad
name: Marsh, Mary W.
name: Henderson, Louise M.
name: Jones, Laura M.
name: Rivera, M. Patricia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: The burden of lung cancer in the United States is staggering, with more Americans dying from lung cancer than the next four most common cancers combined. With endorsement of lung cancer screening by the United States Preventive Services Task Force and reimbursement by the Centers for Medicare and Medicaid Services (CMS), the number screened for lung cancer with low-dose computed tomography (LDCT) is anticipated to rise in the near future.
Evidence of the Dynamics of Relativistic Jet Launching in Quasars
Creators: name: Punsly, Brian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Hubble Space Telescope (HST) spectra of the extreme ultraviolet (EUV), the optically thick emission from the innermost accretion flow onto the central supermassive black hole, indicate that RLQs tend to be EUV weak compared to the radio quiet quasars (RQQs); yet the remainder of the optically thick thermal continuum is indistinguishable. The deficit of EUV emission in RLQs has a straightforward interpretation as a missing or a suppressed innermost region of local energy dissipation in the accretion flow. This article is an examination of the evidence for a distribution of magnetic flux tubes in the innermost accretion flow that results in magnetically arrested accretion (MAA) and creates the EUV deficit. These same flux tubes and possibly the interior magnetic flux that they encircle are the source of the jet power as well. In the MAA scenario, islands of large scale magnetic vertical flux perforate the innermost accretion flow of RLQs. The first prediction of the theory that is supported by the HST data is that the strength of the (large scale poloidal magnetic fields) jets in the MAA region is regulated by the ram pressure of the accretion flow in the quasar environment. The second prediction that is supported by the HST data is that the rotating magnetic islands remove energy from the accretion flow as a Poynting flux dominated jet in proportion to the square of the fraction of the EUV emitting gas that is displaced by these islands.
description: To appear in ApJ
c[kj ok³e;krqu izfrfcafcr gks.kkjs N=irh laHkkth egkjkt % ,d vH;kl
Creators: name: Laknhi F'kokth F'kans
Publisher: name: Zenodo
Year: 2022

description: izLrkouk %  ejkBk bfrgklkP;k ys[kuk e/;s c[kj ok³e;kps egRo vuU; lk/kkjk.k vkgs- c[kj ok³e; gk ejkBh lkfgR;kpk fo”k; vlyk rjh ejkBk bfrgklys[kuk e/;s c[kj ok³e; egRoiw.kZ Bjrs- c[kj ok³e; ejkBk bfrgklkr ledkyhu vkgs- R;keqGs c[kj ok³e;kr bfrgklkpk va’k eksB;k izek.kkr vk<Gwu ;srks- f’kokth egkjktkaP;k ledkyhu vlysyk Ñ”.kkth vuar lHkklnkus ^lHkkln c[kj * fygyh- mRrj dkGkr eYgkj jkejko fpV.khl ;kauh ^fpV.khl c[kj* fdaok ^lIrizdj.kkRed c[kj* fygyh- f’ko fnfXot; c[kj] ,D;k.o dyeh c[kj b- c[kjh ejkBk bfrgklkP;k –f”Vdks.krwu egRoiw.kZ vkgsr- ;k c[kjhe/;s ejkBk bfrgklkps o.kZu vkysys vkgs- ;kr ejkBk bfrgklk cjkscj N=irh laHkkth egkjktoj yh[kku dj.;kr vkys vkgs- Eg.kwu N=irh laHkkth egkjktkaP;k thou pfj=k ojhy ,sfrgklhd yh[kkukpk vH;kl djrs osGh c[kj ok³e;Pkk vH;kl dj.ks vko’;d vkgs- lq#okrhP;k ejkBk bfrgkl dkjkauh c[kj ok³e;kyk vk/kkj ?ksÅu N=irh laHkkth egkjktkaP;k thou pfj=kph ekM.kh dsyh- ;keqGs ,sfrgkfld va’kk cjkscj vu,Sfrgkfld xks”Vh laHkkth egkjktkP;k pfj=k’kh tksMY;k vkgsr- ;k c[kj ok³e;krqu N=irh laHkkth egkjktkaph izfrek d’kh js[kkVyh xsyh- ;kpk vH;kl gks.ks vko’;d gksrs- izLrqr ‘kks/k fuca/kk e/;s c[kj ok³e;krqu izfrfcfcar >kysY;k N=irh laHkkth egkjktkaPkk vk<kok ?ksryk vkgs-
Superconducting Fluctuations in the Normal State of the Two-Dimensional Hubbard Model
Creators: name: Chen, Xi
name: LeBlanc, J. P. F.
name: Gull, Emanuel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We compute the two-particle quantities relevant for superconducting correlations in the two-dimensional Hubbard model within the dynamical cluster approximation. In the normal state we identify the parameter regime in density, interaction, and second-nearest-neighbor hopping strength that maximizes the $d_{x^2-y^2}$ superconducting transition temperature. We find in all cases that the optimal transition temperature occurs at intermediate coupling strength, and is suppressed at strong and weak interaction strengths. Similarly, superconducting fluctuations are strongest at intermediate doping and suppressed towards large doping and half-filling. We find a change in sign of the vertex contributions to $d_{xy}$ superconductivity from repulsive near half filling to attractive at large doping. $p$-wave superconductivity is not found at the parameters we study, and $s$-wave contributions are always repulsive. For negative second-nearest-neighbor hopping the optimal transition temperature shifts towards the electron-doped side in opposition to the van Hove singularity which moves towards hole doping. We surmise that an increase of the local interaction of the electron-doped compounds would increase $T_c$.
description: 4 pages - 4 figures
भारतीय शिक्षा एवं साहित्य: वैश्विक संदर्भ में
Creators: name: Dr. Shobha.L
Publisher: name: Zenodo
Year: 2022

description: भूमिका:- शिक्षा व्यक्ति से समाज को और समाज से राष्ट को हर तरह से शक्ति प्रदान करती है। शिक्षा मनुष्य को मानव से मनुष्य और मनुष्य से देवता बनाती है। साहित्य मानव मुक्ति का साधन है। भारत का साहित्य एक है। भारत का साहित्य एक है,यद्यपि यह बहुत सी भाषाओं में लिखा जाता है।-डां.एस.राधाकृष्णन। काव्य और कथा का रूप एक ही है। भारतीय भाषाएं और साहित्य एक ही वॄक्ष की शाखाएं हैं। ज्ञान मनुष्य को दॄष्टि देती है और संस्कॄति उसको सत्य के मार्ग पर चलने की प्रेरणा देती है। संस्कॄत संस्कार की और संस्कॄति की भाषा है।
Association of Age at Menopause With Incident Heart Failure: A Prospective Cohort Study and Meta‐Analysis
Creators: name: Loehr, Laura R.
name: Schreiner, Pamela J.
name: Folsom, Aaron R.
name: Appiah, Duke
name: Demerath, Ellen W.
name: Chang, Patricia P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: BACKGROUND: Early age (<45 years) at menopause has been postulated to be associated with increased cardiovascular disease risk; however, evidence of its relation with heart failure (HF) incidence is limited. We examined whether age at menopause is associated inversely with HF incidence in the Atherosclerosis Risk In Communities (ARIC) study and summarized all existing data in a meta-analysis.

METHODS AND RESULTS: In ARIC, data were obtained from 5629 postmenopausal women (mean age 56 years, 26% with bilateral oophorectomy) without HF. During a median follow-up of 21.4 years, 965 incident HF events occurred. In a Cox regression model adjusted for reproductive health and HF risk factors, the hazard ratios for incident HF across categories of age at menopause (<45, 45-49, 50-54, and ≥55 years) were 1.32, 1.17, 1.00 (referent), and 1.12, respectively. Compared with women with later onset of menopause (aged ≥45 years), those with early menopause had elevated HF risk (hazard ratio 1.20, 95% CI 1.01-1.43). For the meta-analysis, we searched Medline and Embase for articles published through December 2015 that prospectively evaluated age at menopause and HF risk. Summarized estimates from the 3 included studies (3568 events) showed higher HF risk among women with early menopause compared with those with later menopause (hazard ratio 1.33, 95% CI 1.15-1.53).

CONCLUSIONS: These results provided evidence that early age at menopause is associated with a modestly greater risk of HF. Identification of women with early menopause offers a window of opportunity to implement interventions that will improve overall cardiovascular health during the postmenopausal years.
Calcium Intake From Diet and Supplements and the Risk of Coronary Artery Calcification and its Progression Among Older Adults: 10‐Year Follow‐up of the Multi‐Ethnic Study of Atherosclerosis (MESA)
Creators: name: He, Ka
name: Budoff, Matthew
name: Delaney, Joseph A.C.
name: Anderson, John J.B.
name: Kruszka, Bridget
name: Bild, Diane E.
name: Alonso, Alvaro
name: Michos, Erin D.
name: Burke, Gregory L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: BACKGROUND: Recent randomized data suggest that calcium supplements may be associated with increased risk of cardiovascular disease (CVD) events. Using a longitudinal cohort study, we assessed the association between calcium intake, from both foods and supplements, and atherosclerosis, as measured by coronary artery calcification (CAC).

METHODS AND RESULTS: We studied 5448 adults free of clinically diagnosed CVD (52% female; aged 45-84 years) from the Multi-Ethnic Study of Atherosclerosis. Baseline total calcium intake was assessed from diet (using a food frequency questionnaire) and calcium supplements (by a medication inventory) and categorized into quintiles. Baseline CAC was measured by computed tomography, and CAC measurements were repeated in 2742 participants ≈10 years later. At baseline, mean calcium intakes across quintiles were 313.3, 540.3, 783.0, 1168.9, and 2157.4 mg/day. Women had higher calcium intakes than men. After adjustment for potential confounders, among 1567 participants without baseline CAC, the relative risk (RR) of developing incident CAC over 10 years, by quintile 1 to 5 of calcium intake, were 1 (reference), 0.95 (0.79-1.14), 1.02 (0.85-1.23), 0.86 (0.69-1.05), and 0.73 (0.57-0.93). After accounting for total calcium intake, calcium supplement use was associated with increased risk for incident CAC (RR=1.22 [1.07-1.39]). No relation was found between baseline calcium intake and 10-year changes in log-transformed CAC among those participants with baseline CAC >0.

CONCLUSIONS: High total calcium intake was associated with a decreased risk of incident atherosclerosis over long-term follow-up, particularly if achieved without supplement use. However, calcium supplement use may increase the risk for incident CAC.
First law of thermodynamics for dynamical apparent horizons and the entropy of Friedmann universes
Creators: name: Viaggiu, Stefano
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, we have generalized the Bekenstein-Hawking entropy formula for black holes embedded in expanding Friedmann universes. In this letter, we begin the study of this new formula to obtain the first law of thermodynamics for dynamical apparent horizons. In this regard we obtain a generalized expression for the internal energy $U$ together with a distinction between the dynamical temperature $T_D$ of apparent horizons and the related one due to thermodynamics formulas. Remarkable, when the expression for $U$ is applied to the apparent horizon of the universe, we found that this internal energy is a constant of motion. Our calculations thus show that the total energy of our spatially flat universe including the gravitational contribution, when calculated at the apparent horizon, is an universal constant that can be set to zero from simple dimensional considerations. This strongly support the holographic principle.
description: Final version published on General Relativity Gravitation
Quantized conductance through the quantum evaporation of bosonic atoms
Creators: name: Papoular, D. J.
name: Pitaevskii, L. P.
name: Stringari, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We analyze theoretically the quantization of conductance occurring with cold bosonic atoms trapped in two reservoirs connected by a constriction with an attractive gate potential. We focus on temperatures slightly above the condensation threshold in the reservoirs. We show that a conductance step occurs, coinciding with the appearance of a condensate in the constriction. Conductance relies on a collective process involving the quantum condensation of an atom into an elementary excitation and the subsequent quantum evaporation of an atom, in contrast with ballistic fermion transport. The value of the bosonic conductance plateau is strongly enhanced compared to fermions and explicitly depends on temperature. We highlight the role of weak repulsive interactions between the bosons in preventing them from collapsing into the constriction.
title: Evaluation of heritage experiences and the influence of in-situ visual interpretation of non-existent artefacts at St Augustine's Abbey
Creators: name: Majd Ardekani, Ayda
Publisher: name: University of Kent
Year: 2022

description: Research on heritage experiences approaches the subject from many fields of study, including visitor experiences, interpretation and reconstruction. Despite the multidi- mensionality of heritage experiences, fewer studies observe it from an integrated inter- disciplinary perspective. The emergence of digital technologies and their fast evolution has resulted in frameworks to enhance cultural heritage experiences, specifically by introducing innovative audio and visual interpretation methods. This research approaches the subject of heritage experiences with specific attention to the collective influence that interpretation methods could have on visitor experiences and making sense of non-existent artefacts digitally presented in-situ among heritage ruins. This research is site-specific to St Augustine's Abbey; an English Heritage site and part of the Canterbury World Heritage Site. The research questions outlined in this research enquire about the contribution of interpretation methods to making sense of a significantly demolished heritage place where only a limited number of artefacts remain on the grounds. The methodology for this research included: 1) Evaluation of heritage experiences focusing on four core themes, which has been achieved through two stages of qualitative research; and 2) Digital reconstruction workflows, which included selecting non-existent artefacts, digitally reconstructing and presenting them in the form of projections in- situ. The influence of digital reconstruction on heritage experiences and making sense of lost artefacts and the site was examined as part of Stage 2. The research findings at Stages 1 and 2 demonstrated that presence on the site and having access to audio and visual interpretation of the historic Abbey complement each other and positively contribute to heritage experiences. Participants of this study reported that particular interpretation methods contribute to understanding the his- toric monastic complex, navigating the ruins and envisioning the scale of the Abbey in the past. This research contributes to learning the advantages of in-situ and dig- ital reconstruction of non-existent artefacts. Further to previously introduced digital frameworks for screen-based visual interpretation of heritage, such as Augmented Re- ality or device dependent methods such as Virtual Reality, it explores the possibilities and consequences of Spatially Augmenting the space using projections and blending imageries with the site.
Spin Flips - II. Evolution of dark matter halo spin orientation, and its correlation with major mergers
Creators: name: Bett, Philip E.
name: Frenk, Carlos S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We expand our previous study on the relationship between changes in the orientation of the angular momentum vector of dark matter haloes ("spin flips") and changes in their mass (Bett & Frenk 2012), to cover the full range of halo masses in a simulation cube of length 100 $h^{-1}$ Mpc. Since strong disturbances to a halo (such as might be indicated by a large change in the spin direction) are likely also to disturb the galaxy evolving within, spin flips could be a mechanism for galaxy morphological transformation without involving major mergers. We find that 35% of haloes have, at some point in their lifetimes, had a spin flip of at least $45°$ that does not coincide with a major merger. Over 75% of large spin flips coincide with non-major mergers; only a quarter coincide with major mergers. We find a similar picture for changes to the inner-halo spin orientation, although here there is an increased likelihood of a flip occurring. Changes in halo angular momentum orientation, and other such measures of halo perturbation, are therefore very important quantities to consider, in addition to halo mergers, when modelling the formation and evolution of galaxies and confronting such models with observations.
description: 19 pages, 26 figures. Updated to match version accepted for publication in MNRAS
Challenges and Outcomes of Posterior Wall Isolation for Ablation of Atrial Fibrillation
Creators: name: Kiser, Andy C.
name: Kumar, Prabhat
name: Gehi, Anil K.
name: Bamimore, Ayotunde M.
name: Mounsey, J. Paul
name: Hummel, James P.
name: Chung, Eugene H.
name: Schwartz, Jennifer D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: BACKGROUND: The left atrial posterior wall (PW) often contains sites required for maintenance of atrial fibrillation (AF). Electrical isolation of the PW is an important feature of all open surgeries for AF. This study assessed the ability of current ablation techniques to achieve PW isolation (PWI) and its effect on recurrent AF.

METHODS AND RESULTS: Fifty-seven consecutive patients with persistent or high-burden paroxysmal AF underwent catheter ablation, which was performed using an endocardial-only (30) or a hybrid endocardial-epicardial procedure (27). The catheter ablation lesion set included pulmonary vein antral isolation and a box lesion on the PW (roof and posterior lines). Success in creating the box lesion was assessed as electrical silence of the PW (voltage <0.1 mV) and exit block in the PW with electrical capture. Cox proportional hazards models were used for analysis of AF recurrence. PWI was achieved in 21 patients (36.8%), more often in patients undergoing hybrid ablation than endocardial ablation alone (51.9% versus 23.3%, P=0.05). Twelve patients underwent redo ablation. Five of 12 had a successful procedural PWI, but all had PW reconnection at the redo procedure. Over a median follow-up of 302 days, 56.1% of the patients were free of atrial arrhythmias. No parameter including procedural PWI was a statistically significant predictor of recurrent atrial arrhythmias.

CONCLUSIONS: PWI during catheter ablation for AF is difficult to achieve, especially with endocardial ablation alone. Procedural achievement of PWI in this group of patients was not associated with a reduction in recurrent atrial arrhythmias, but reconnection of the PW was common.
Equilibrium cluster fluids: Pair interactions via inverse design
Creators: name: Jadrich, Ryan B.
name: Bollinger, Jonathan A.
name: Lindquist, Beth A.
name: Truskett, Thomas M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Inverse methods of statistical mechanics are becoming productive tools in the design of materials with specific microstructures or properties. While initial studies have focused on solid-state design targets (e.g, assembly of colloidal superlattices), one can alternatively design fluid states with desired morphologies. This work addresses the latter and demonstrates how a simple iterative Boltzmann inversion strategy can be used to determine the isotropic pair potential that reproduces the radial distribution function of a fluid of amorphous clusters with prescribed size. The inverse designed pair potential of this "ideal" cluster fluid, with its broad attractive well and narrow repulsive barrier at larger separations, is qualitatively different from the so-called SALR form most commonly associated with equilibrium cluster formation in colloids, which features short-range attractive (SA) and long-range repulsive (LR) contributions. These differences reflect alternative mechanisms for promoting cluster formation with an isotropic pair potential, and they in turn produce structured fluids with qualitatively different static and dynamic properties. Specifically, equilibrium simulations show that the amorphous clusters resulting from the inverse designed potentials display more uniformity in size and shape, and they also show greater spatial and temporal resolution than those resulting from SALR interactions.
description: Main text: 14 pages, 9 figures, 1 table. Supplementary Material: 3 pages, 5 figures. Electronic Supplementary Material: three cluster fluid simulation movies (n8_eta0.06_movie, n16_eta0.06_movie and n32_eta0.06_movie) located at this http URL corresponding to the snapshots in Fig. 2 of the main text
The Singleton Pattern in Scalability Contexts: Performance Evaluation and Maintenance Impacts of Systems
Creators: name: Filho, Nagib
Publisher: name: Zenodo
Year: 2024
Subjects: Singleton pattern
scalability
performance evaluation
system maintenance
design patterns
resource management
concurrency
efficiency
memory cost
performance testing
software architecture
system design
dependencies
single instance
access control
performance impact
agile development
distributed systems
optimization
best practices

description: The Singleton pattern is widely used to ensure the existence of a single instance of a class and provide a global point of access to that instance. However, its application in scalable systems can present significant challenges related to performance and maintenance. This article presents potential impacts of the Singleton pattern in scalability contexts, analyzing how it affects the performance of distributed systems and ease of maintenance.
Effects of Restoration of Blood Flow on the Development of Aortic Atherosclerosis in ApoE −/− Mice With Unilateral Renal Artery Stenosis
Creators: name: Stouffer, George A.
name: Pathak, Alokkumar S.
name: Huang, Jianhua
name: Bazemore, Taylor C.
name: Zhou, Ruihai
name: Rojas, Mauricio
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: BACKGROUND: Chronic unilateral renal artery stenosis (RAS) causes accelerated atherosclerosis in apolipoprotein E-deficient (ApoE(-/-)) mice, but effects of restoration of renal blood flow on aortic atherosclerosis are unknown.

METHODS AND RESULTS: Male ApoE(-/-) mice underwent sham surgery (n=16) or had partial ligation of the right renal artery (n=41) with the ligature being removed 4 days later (D4LR; n=6), 8 days later (D8LR; n=11), or left in place for 90 days (chronic RAS; n=24). Ligature removal at 4 or 8 days resulted in improved renal blood flow, decreased plasma angiotensin II levels, a return of systolic blood pressure to baseline, and increased plasma levels of neutrophil gelatinase associated lipocalin. Chronic RAS resulted in increased lipid staining in the aortic arch (33.2% [24.4, 47.5] vs 11.6% [6.1, 14.2]; P<0.05) and descending thoracic aorta (10.2% [6.4, 25.9] vs 4.9% [2.8, 7.8]; P<0.05), compared to sham surgery. There was an increased amount of aortic arch lipid staining in the D8LR group (22.7% [22.1, 32.7]), compared to sham-surgery, but less than observed with chronic RAS. Lipid staining in the aortic arch was not increased in the D4LR group, and lipid staining in the descending aorta was not increased in either the D8LR or D4LR groups. There was less macrophage expression in infrarenal aortic atheroma in the D4LR and D8LR groups compared to the chronic RAS group.

CONCLUSIONS: Restoration of renal blood flow at either 4 or 8 days after unilateral RAS had a beneficial effect on systolic blood pressure, aortic lipid deposition, and atheroma inflammation.
Towards environmentally sustainable long-term digital preservation
Creators: name: Lozada, Ignacio Peluaga
name: Fernandes, João
name: Natraj, Shreyasvi
Publisher: name: Zenodo
Year: 2022
Subjects: Digital Preservation
Digital Archiving
Large Data Volumes
Cloud Computing

description: ARCHIVER and Pre-Commercial Procurement funding has enabled small to medium enterprises (SMEs) to innovate and deliver new services for EOSC. Within the framework of the ARCHIVER pre-commercial procurement tender, between December 2020 and August 2021, three commercial consortia competed to deliver innovative, prototype solutions for long-term data preservation. Two of them were selected to continue with the pilot phase and deliver research-ready solutions for long-term data preservation of research data, therefore filling a gap in the current European Open Science panorama. Digital preservation relies on technological infrastructure (information and communication technology, ICT) that can have environmental impacts. While altering technology usage can reduce the impact of digital preservation practices, this alone is not a strategy for sustainable practice. Moving toward environmentally sustainable digital preservation requires critically examining the motivations and assumptions that shape current practice. The use of scalable cloud infrastructures can reduce the environmental impacts of long-term data preservation solutions.
Licea aurea D. Wrigley, Lado & Estrada 2019, sp. nov.
Creators: name: Basanta, Diana Wrigley De
name: Estrada-Torres, Arturo
name: Lado, Carlos
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Dictyosteliomycetes
Dictyosteliales
Dictyosteliaceae
Licea
Licea aurea

description: Licea aurea D. Wrigley, Lado & Estrada sp. nov. (Figs 1–18)
Mycobank MB 828702
 Sporophores sporocarpic, dispersed, sessile, 0.05–0.15 mm diam. Sporotheca subglobose, golden yellowish brown (86. l. Y-87. m. Y), translucent showing spores, sometimes angular where peridial fracture lines are visible (Figs 1–3). Hypothallus absent. Peridium single, membranous, pale golden (89. p. Y-90. gy. Y) by LM, composed of platelets, the inner surface roughened (Fig. 4) with an irregular reticulum of warts visible by SEM (Figs 7, 11); dehiscence by fracture along preformed lines leaving 4–6 platelets per sporotheca (Figs 4, 6, 7); platelets polygonal with well-defined margins (Fig. 8) but no clear areas, pegs or larger ornamentation at the edges. Capillitium absent. Columella absent. Spores free, yellow in mass, pale yellow (86. l. Y-89. p. Y), to concolorous with the peridium by LM, (13.5 –)14–15(–16) μm diam., subglobose, smooth by LM and by SEM (Figs 4, 5, 7–10); spore wall thick with a large thinner area (Figs 4, 5), wrinkled by SEM (Fig. 10). Protoplasmodium (Figs 15, 16) colourless on agar.
 Holotype:— PERU, Arequipa: Caylloma, Chivay, Caylloma-Chivay community, route AR-109 to Chivay, km 65, 15º42´01”S 71º35´24”W, 4470 m, 20-X-2016, on dead leaf bases of Azorella compacta in moist chamber culture (pH 7.38), D. Wrigley de Basanta, dwb 3815 (MA-Fungi 91750).
 Etymology:— From the Latin (golden) for the shining colour of the sporocarps.
 Substrate:— On dead leaf bases of Azorella compacta.
 Distribution:— Known only from the Peruvian Andes. Possibly occurring in other areas of South America, following the distribution of species of the plant genus Azorella.
 Other specimens examined:— PERU, Arequipa: Chivay, Caylloma-Chivay community, route PE-1SE, km 60, 24 km S of Chivay, 15°42’41”S 71°36’22”W, 4747 m, 9-XI-2012, on dead leaf bases of Azorella compacta in moist chamber culture (pH 7.43), D. Wrigley de Basanta, dwb 3533; ibidem, (pH 7.48), dwb 3534; ibidem, 12-XI-2012, (pH 7.53), dwb 3556; ibidem 26-IX-2013, (pH 7.14), dwb 3615; ibidem, (pH 7.05) dwb 3616; ibidem 02-X-2013 (pH 7.29) dwb 3617; ibidem, 14-IX-2013, on agar culture of spores from dwb 3615, isolate 1359, isolate 1366. Arequipa, Caylloma, Chivay, Caylloma-Chivay community, route AR-109 to Chivay, km 57, 15º44´00”S 71º35´45”W, 4823 m, 19-X-2016, on dead leaf bases of A. compacta in moist chamber culture, (pH 6.61), dwb 3814.
description: Published as part of Basanta, Diana Wrigley De, Estrada-Torres, Arturo & Lado, Carlos, 2019, Licea aurea a new Myxomycete from the Peruvian Andes, pp. 218-224 in Phytotaxa 391 (3) on page 221, DOI: 10.11646/phytotaxa.391.3.5, http://zenodo.org/record/13717322
Reason defaults: Presenting defaults with reasons for choosing each option helps decision makers with minority interests
Creators: name: Berkeley Dietvorst
name: Desiraju, Shweta
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Business
subject: Social and Behavioral Sciences

description: This registration includes all preregistrations, supplemental materials, study materials, data, and code.
Entanglement Scrambling in 2d Conformal Field Theory
Creators: name: Asplund, Curtis T.
name: Bernamonti, Alice
name: Galli, Federico
name: Hartman, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate how entanglement spreads in time-dependent states of a 1+1 dimensional conformal field theory (CFT). The results depend qualitatively on the value of the central charge. In rational CFTs, which have central charge below a critical value, entanglement entropy behaves as if correlations were carried by free quasiparticles. This leads to long-term memory effects, such as spikes in the mutual information of widely separated regions at late times. When the central charge is above the critical value, the quasiparticle picture fails. Assuming no extended symmetry algebra, any theory with $c>1$ has diminished memory effects compared to the rational models. In holographic CFTs, with $c \gg 1$, these memory effects are eliminated altogether at strong coupling, but reappear after the scrambling time $t \gtrsim β\log c$ at weak coupling.
description: 52 pages, 7 figure; v2: references added
Microbiota‐Dependent Metabolite Trimethylamine N‐Oxide and Coronary Artery Calcium in the Coronary Artery Risk Development in Young Adults Study (CARDIA)
Creators: name: Benton, Thomas Z.
name: Jacobs, David R.
name: Gross, Myron D.
name: Lloyd-Jones, Donald M.
name: Zeisel, Steven H.
name: Meyer, Katie A.
name: Carr, J. Jeffrey
name: Bennett, Brian J.
name: Gordon-Larsen, Penny
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: BACKGROUND: Clinical studies implicate trimethylamine N-oxide (TMAO; a gut microbiota-dependent nutrient metabolite) in cardiovascular disease risk. There is a lack of population-based data on the role of TMAO in advancing early atherosclerotic disease. We tested the prospective associations between TMAO and coronary artery calcium (CAC) and carotid intima-media thickness (cIMT).

METHODS AND RESULTS: Data were from the Coronary Artery Risk Development in Young Adults Study (CARDIA), a biracial cohort of US adults recruited in 1985-1986 (n=5115). We randomly sampled 817 participants (aged 33-55 years) who attended examinations in 2000-2001, 2005-2006, and 2010-2011, at which CAC was measured by computed tomography and cIMT (2005-2006) by ultrasound. TMAO was quantified using liquid chromotography mass spectrometry on plasma collected in 2000-2001. Outcomes were incident CAC, defined as Agatston units=0 in 2000-2001 and >0 over 10-year follow-up, CAC progression (any increase over 10-year follow-up), and continuous cIMT. Over the study period, 25% (n=184) of those free of CAC in 2000-2001 (n=746) developed detectable CAC. In 2000-2001, median (interquartile range) TMAO was 2.6 (1.8-4.2) μmol/L. In multivariable-adjusted models, TMAO was not associated with 10-year CAC incidence (rate ratio=1.03; 95% CI: 0.71-1.52) or CAC progression (0.97; 0.68-1.38) in Poisson regression, or cIMT (beta coefficient: -0.009; -0.03 to 0.01) in linear regression, comparing the fourth to the first quartiles of TMAO.

CONCLUSIONS: In this population-based study, TMAO was not associated with measures of atherosclerosis: CAC incidence, CAC progression, or cIMT. These data indicate that TMAO may not contribute significantly to advancing early atherosclerotic disease risk among healthy early-middle-aged adults.
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Creators: name: Jherh Dkafr Flag DkBsM
Publisher: name: Zenodo
Year: 2022
Subjects: bysDVª'fud lalkèku çcaèku] DykmM daI;wfVax] baVjusV v'Q fFkaXl] fcx MkVk vkSj MkVk fotqykbts'ku] vkfVZfQf'k;y baVsfytsal eksckby vkèkkfjr iqLrdky; lsok,a] baVsfytsaV ykbczsjh lpZ ,aM QsMjsVsM lpZ

description: lkj %&iqLrdky; lcls egRoiw.kZ lkekftd laLFkkuksa esa ls ,d gSA nqfu;k Hkj ls tkudkjh laxzfgr djus okys iqLrdky; ds fcuk dksbZ Hkh lekt iw.kZ ugha gSA lwpuk vkSj lapkj çkS|ksfxdh vkbZlhVh us iqLrdky; vkSj mudh lsokvksa dks O;kid :i ls çHkkfor fd;k gSA igys iqLrdky; vius mi;ksxdrkZvksa dks eSU;qvy lwpuk lalkèkuksa vkSj lsokvksa dh is'kd'k djrs Fks ysfdu orZeku esa iqLrdky; fMftVyhdj.k dk eq[; :i ls ç;ksx djds v‚uykbu iqLrdky;ksa bZ iqLrdky; gks ;k fMftVy iqLrdky; ds :i esa ifjofrZr gks x, gSaA bl dkj.k iqLrdky; dk Hkfo"; cgqr vfèkd mTtoy fn[k jgk gSA
Supervisor perspectives of influences upon their assessments of Australian dermatology trainees
Creators: name: Scarff, Catherine Elizabeth
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Assessment is an important part of medical education and many formats for this exist. In training assessments are one such example and they serve to provide feedback to learners about their performance during a period of clinical attachment. However many factors in addition to trainee knowledge and performance can affect the assessment they are given. Both external and internal influences are known to affect supervisors' assessments. This study investigated supervisors in the Australasian College of Dermatologist's perspectives upon their assessments of Australian dermatology trainees. An anonymous survey was used to discover their perspectives. A response rate of 40% was achieved. Supervisors reported that external influences such as logistical issues were not of great significance to them. While the importance of providing feedback to trainees and reporting underperformance was appreciated and the SIT A's ability to provide this appreciated, limitations to the use of the tool were also noted. This included impediments due to misunderstandings of its use and lack of honesty in completion. Many supervisors were mindful of the consequences of a negative assessment and possible impacts of this on relationships with them and many expressed the desire for a collaborative approach to assessment. Potential implications for practice are discussed.
Ten equivalent definitions of the fractional Laplace operator
Creators: name: Kwaśnicki, Mateusz
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: This article reviews several definitions of the fractional Laplace operator (-Delta)^{alpha/2} (0 < alpha < 2) in R^d, also known as the Riesz fractional derivative operator, as an operator on Lebesgue spaces L^p, on the space C_0 of continuous functions vanishing at infinity and on the space C_{bu} of bounded uniformly continuous functions. Among these definitions are ones involving singular integrals, semigroups of operators, Bochner's subordination and harmonic extensions. We collect and extend known results in order to prove that all these definitions agree: on each of the function spaces considered, the corresponding operators have common domain and they coincide on that common domain.
description: 31 pages