cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Grand Canonical Multiverse and the Small Cosmological Constant
Creators: name: Ben-Dayan, Ido
name: Hadad, Merav
name: Michaelis, Amir
Publisher: name: arXiv
Year: 2021
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: We consider the Multiverse as an ensemble of universes. Using standard statistical physics analysis we get that the Cosmological Constant (CC) is exponentially small. The small and finite CC is achieved without any anthropic reasoning. We then quantize the CC. The quantization allows a precise summation of the possible contributions and using the measured value of the CC yields a prediction on the temperature of the Multiverse that we define. Furthermore, quantization allows the interpretation of a single Universe as a superposition of different eigenstates with different energy levels rather than the existence of an actual Multiverse.
description: Matches the published version
Phosphoinositide phosphatases in cell biology and disease
Creators: name: Bankaitis, Vytas A.
name: Liu, Yang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Phosphoinositides are essential signaling molecules linked to a diverse array of cellular processes in eukaryotic cells. The metabolic interconversions of these phospholipids are subject to exquisite spatial and temporal regulation executed by arrays of phosphatidylinositol (PtdIns) and phosphoinositide-metabolizing enzymes. These include PtdIns- and phosphoinositide-kinases that drive phosphoinositide synthesis, and phospholipases and phosphatases that regulate phosphoinositide degradation. In the past decade, phosphoinositide phosphatases have emerged as topics of particular interest. This interest is driven by the recent appreciation that these enzymes represent primary mechanisms for phosphoinositide degradation, and because of their ever-increasing connections with human diseases. Herein, we review the biochemical properties of six major phosphoinositide phosphatases, the functional involvements of these enzymes in regulating phosphoinositide metabolism, the pathologies that arise from functional derangements of individual phosphatases, and recent ideas concerning the involvements of phosphoinositide phosphatases in membrane traffic control.
Microsomal prostaglandin E synthase-2 is not essential for in vivo prostaglandin E2 biosynthesis
Creators: name: Foley, Nicholas A.
name: Snouwaert, John
name: Jania, Leigh A.
name: Chandrasekharan, Subhashini
name: Audoly, Laurent P.
name: Wang, I-Ming
name: Koller, Beverly H.
name: Backlund, Michael G.
name: Clark, Patsy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Prostaglandin E2 (PGE2) plays an important role in the normal physiology of many organ systems. Increased levels of this lipid mediator are associated with many disease states, and it potently regulates inflammatory responses. Three enzymes capable of in vitro synthesis of PGE2 from the cyclooxygenase metabolite PGH2 have been described. Here, we examine the contribution of one of these enzymes to PGE2 production, mPges-2, which encodes microsomal prostaglandin synthase-2 (mPGES-2), by generating mice homozygous for the null allele of this gene. Loss of mPges-2 expression did not result in a measurable decrease in PGE2 levels in any tissue or cell type examined from healthy mice. Taken together, analysis of the mPGES-2 deficient mouse lines does not substantiate the contention that mPGES-2 is a PGE2 synthase.
Citing National Publications as a metrics for localization of Science: A Study on Scholar Journals of Social Science Domain in Iran from 2002 to 2010
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2015

description: Citing national publications is considered as a qualitative measure for science localization in the current research. Consequently, the aim is to study this metric within the corpus of Iranian Scholar Journals in Social Science Domain between 2002 and 2010. Methodology: The research uses the citation analysis method. The references of six social science scholar journals were extracted from the papers and they were then divided into two groups of national and foreign publications. The studied journals were those which were regularly published in Iran between 2002 and 2010. The analysis performed on a sample of 543 papers out of 1528 ones. The sampling method was based on the Cochran’s function. Findings: An ANOVA test showed that the average number of citing to the national publications is statistically unchanged in the journal’s papers during the period mentioned above. On the other hand, the same average for foreign publications is growing. The correlation analysis determined that this growth follows a logarithmic function. The other finding concerns the differences between the average numbers of citing to the national publications in the studied journals. A one way ANOVA test revealed a difference between the journals from this point of view. Based on the Tukey’s Range Test the results of ANOVA test is affected by the "Journal of Women Strategic Studies". It means, if this journal were omitted from the analysis, the rest five ones would statistically have the same rate of citing to the national publications. The citing rate to national publications ranges between 0.31 and 0.39 except for the Journal mentioned above. Conclusion: Based on this metric, the tendency toward the use of national publications in the social science domain is constant despite the number of scientific productions is growing in Iran. This means that the Iranian social science domain not only doesn’t tend to the science localization but its use of foreign science is growing in the span of time as well.
On the existence of scaling multi-centered black holes
Creators: name: Descombes, Pierre
name: Pioline, Boris
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: For suitable charges of the constituents, the phase space of multi-centered BPS black holes in N=2 four-dimensional supergravity famously exhibits scaling regions where the distances between the centers can be made arbitrarily small, so that the bound state becomes indistinguishable from a single-centered black hole. In this note we establish necessary conditions on the Dirac product of charges for the existence of such regions for any number of centers, generalizing the standard triangular inequalities in the three-center case. Interestingly, the same conditions are necessary for the existence of multi-centered solutions at the attractor point. We prove that similar conditions are also necessary for the existence of self-stable representations of the corresponding quiver, as suggested by the duality between the Coulomb and Higgs branches of supersymmetric quantum mechanics.
description: In this v3 we have changed a bit the presentation according to our reviewer's suggestions, and have extended the results on the Higgs branch to a wider generality
Cytochrome P450 2J2 is protective against global cerebral ischemia in transgenic mice
Creators: name: Degraff, Laura Miller
name: Edin, Matthew L.
name: Yu, Xuefeng
name: Lee, Craig R.
name: Zeldin, Darryl C.
name: Wang, Dao Wen
name: Chen, Chen
name: Li, Rui
name: Xu, Xizhen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Cytochrome P450 epoxygenase metabolites of arachidonic acid (EETs) have multiple cardiovascular effects, including reduction of blood pressure, protection against myocardial ischemia-reperfusion injury, and attenuation of endothelial inflammation and apoptosis. The present study was aimed to determine potential neuroprotective roles for EETs in cerebral ischemia.
Stability of skyrmions on curved surfaces in the presence of a magnetic field
Creators: name: Carvalho-Santos, V. L.
name: Elias, R. G.
name: Altbir, D.
name: Fonseca, J. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the stability and energetics associated to skyrmions appear- ing as excitations on curved surfaces. Using a continuum model we show that the presence of cylindrically radial and azimuthal fields destabilizes the skyrmions that appear in the absence of an external field. Weak fields generate fractional skyrmions while strong magnetic fields yield stable 2{$π$}- skyrmions, which have their widths diminished by the magnetic field strength. Under azimuthal fields vortex appear as stable states on the curved surface.
Hematopoietic prostaglandin D synthase (HPGDS): A high stability, Val187Ile isoenzyme common among African Americans and its relationship to risk for colorectal cancer
Creators: name: Sandler, Robert S.
name: Lawson, John A.
name: Materi, Alicia M.
name: Dai, Aihua
name: Keku, Temitope O.
name: Haile, Robert W.
name: Chlebowski, Rowan T.
name: Lin, Henry J.
name: Lin, John M.
name: Inoue, Tsuyoshi
name: Tippin, Brigette L.
name: Patterson, Ruth E.
name: Kapoor, Shiv
name: Sansbury, Leah B.
name: Das, Sudipto
name: Goodman, Julie E.
name: Le Marchand, Loïc
name: Garavito, R. Michael
name: Song, Wen-Liang
name: Lin, Amy M.
name: Cho, Wonhwa
name: Kolonel, Laurence N.
name: Park, Jae Man
name: Levine, A. Joan
name: Kwong, Alan M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Intestinal tumors in ApcMin/+ mice are suppressed by over-production of HPGDS, which is a glutathione transferase that forms prostaglandin D2 (PGD2). We characterized naturally occurring HPGDS isoenzymes, to see if HPGDS variation is associated with human colorectal cancer risk. We used DNA heteroduplex analysis and sequencing to identify HPGDS variants among healthy individuals. HPGDS isoenzymes were produced in bacteria, and their catalytic activities were tested. To determine in vivo effects, we conducted pooled case-control analyses to assess whether there is an association of the isoenzyme with colorectal cancer. Roughly 8% of African Americans and 2% of Caucasians had a highly stable Val187lle isoenzyme (with isoleucine instead of valine at position 187). At 37 °C, the wild-type enzyme lost 15% of its activity in one hour, whereas the Val187Ile form remained >95% active. At 50 °C, the half life of native HPGDS was 9 minutes, compared to 42 minutes for Val187Ile. The odds ratio for colorectal cancer among African Americans with Val187Ile was 1.10 (95% CI, 0.75–1.62; 533 cases, 795 controls). Thus, the Val187Ile HPGDS isoenzyme common among African Americans is not associated with colorectal cancer risk. Other approaches will be needed to establish a role for HPGDS in occurrence of human intestinal tumors, as indicated by a mouse model.
PGE2 through the EP4 receptor controls smooth muscle gene expression patterns in the ductus arteriosus critical for remodeling at birth
Creators: name: Kovarova, Martina
name: Koller, Beverly H.
name: Gruzdev, Artiom
name: Nguyen, MyTrang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The ductus arteriosus (DA) is a fetal shunt that directs right ventricular outflow away from pulmonary circulation and into the aorta. Critical roles for prostaglandin E2 (PGE2) and the EP4 receptor (EP4) have been established in maintaining both the patency of the vessel in utero and in its closure at birth. Here we have generated mice in which loss of EP4 expression is limited to either the smooth muscle (SMC) or endothelial cells and demonstrated that SMC, but not endothelial cell expression of EP4 is required for DA closure. The genome wide expression analysis of full term wild type and EP4−/− DA indicates that PGE2/EP4 signaling modulates expression of a number of unique pathways, including those involved in SMC proliferation, cell migration, and vascular tone. Together this supports a mechanism by which maturation and increased contractility of the vessel is coupled to the potent smooth muscle dilatory actions of PGE2.
Provably accurate simulation of gauge theories and bosonic systems
Creators: name: Tong, Yu
name: Albert, Victor V.
name: McClean, Jarrod R.
name: Preskill, John
name: Su, Yuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Structures and Algorithms (cs.DS)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum many-body systems involving bosonic modes or gauge fields have infinite-dimensional local Hilbert spaces which must be truncated to perform simulations of real-time dynamics on classical or quantum computers. To analyze the truncation error, we develop methods for bounding the rate of growth of local quantum numbers such as the occupation number of a mode at a lattice site, or the electric field at a lattice link. Our approach applies to various models of bosons interacting with spins or fermions, and also to both abelian and non-abelian gauge theories. We show that if states in these models are truncated by imposing an upper limit $Λ$ on each local quantum number, and if the initial state has low local quantum numbers, then an error at most $ε$ can be achieved by choosing $Λ$ to scale polylogarithmically with $ε^{-1}$, an exponential improvement over previous bounds based on energy conservation. For the Hubbard-Holstein model, we numerically compute a bound on $Λ$ that achieves accuracy $ε$, obtaining significantly improved estimates in various parameter regimes. We also establish a criterion for truncating the Hamiltonian with a provable guarantee on the accuracy of time evolution. Building on that result, we formulate quantum algorithms for dynamical simulation of lattice gauge theories and of models with bosonic modes; the gate complexity depends almost linearly on spacetime volume in the former case, and almost quadratically on time in the latter case. We establish a lower bound showing that there are systems involving bosons for which this quadratic scaling with time cannot be improved. By applying our result on the truncation error in time evolution, we also prove that spectrally isolated energy eigenstates can be approximated with accuracy $ε$ by truncating local quantum numbers at $Λ=\textrm{polylog}(ε^{-1})$.
Dual modulation of cyclooxygenase and CYP epoxygenase metabolism and acute vascular inflammation in mice
Creators: name: Lee, Craig R.
name: Schuck, Robert N.
name: Molnar, Kimberly
name: DeGraff, Laura
name: Zeldin, Darryl C.
name: Lih, Fred B.
name: Oni-Orisan, Akinyemi
name: Tomer, Kenneth B.
name: Theken, Katherine N.
name: Deng, Yangmei
name: Edin, Matthew L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Cyclooxygenase (COX)-derived prostaglandins and cytochrome P450 (CYP) epoxygenase-derived epoxyeicosatrienoic acids are important regulators of inflammation; however, functional interactions between these pathways in the regulation of vascular inflammation in vivo have not been studied. We investigated the relative and additive effects of endothelial CYP2J2 overexpression (Tie2-CYP2J2-Tr), global sEH disruption (Ephx2−/−), and pharmacologic COX inhibition with indomethacin on the acute vascular inflammatory response to endotoxin in mice. Compared to vehicle-treated wild-type C57BL/6 controls, induction of myeloperoxidase (MPO) activity in lung and liver was similarly attenuated in Tie2-CYP2J2-Tr mice, Ephx2−/− mice and wild-type mice treated with moderate dose indomethacin. Dual modulation of both pathways, however, did not produce an additive anti-inflammatory effect. These findings demonstrate that both COX and CYP epoxygenase-mediated eicosanoid metabolism are important regulators of the acute vascular inflammatory response in vivo, and suggest that the anti-inflammatory effects of modulating each pathway may be mediated, at least in part, by overlapping mechanisms.
Evaluating Citation Value of Iranian Papers in Chemistry Using Text Citation Potential
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2015

description: Research aim: The present study aimed to investigate the value of Iranian papers in chemistry in 2010 based on their citation quality. The citation value was calculated based on text citation frequency and text citation potential. The latter is defined based on the text citation frequency of the cited papers, divided by text citation potential of the citing papers. Research method: The research was carried out using a citation analysis method. The data were analyzed by descriptive and inferential statistics, including Spearman correlation test. Research result: 955 papers referring to 517 Iranian papers were examined. These papers gave 1434 text citations to Iranian papers, of which 213 (accounting for 22 percent) were self citations. Only a minority (17.02 percent) of the Iranian papers performed higher than the expected level and the rest (82.97 percent) performed below the expected level, regarding their text citation portions. The results also indicated that citations can properly predict text citation frequencies but have no significant correlation with text citation portions. Conclusion: Despite the recent growth in Iran’s scientific outputs in chemistry, the citation value of the papers was revealed to be considerably low. This implies that in order to have a more objective evaluation, Iranian science system requires more qualitative indicators instead of the crude count of citations.
Genetic variation in adiponectin (ADIPOQ) and the type 1 receptor (ADIPOR1), obesity and prostate cancer in African Americans
Creators: name: Ray, A M
name: Zuhlke, K A
name: Cooney, K A
name: Lange, E M
name: Beebe-Dimmer, J L
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: BackgroundAdiponectin is a protein derived from adipose tissue suspected to play an important role in prostate carcinogenesis. Variants in the adiponectin gene (ADIPOQ) and its type I receptor (ADIPOR1) have been recently linked to risk of both breast and colorectal cancer. Therefore, we set out to examine the relationship between polymorphisms in these genes, obesity and prostate cancer in study of African American men.MethodsTen single nucleotide polymorphisms (SNPs) in ADIPOQ and ADIPOR1 were genotyped in DNA samples from 131 African American prostate cancer cases and 344 controls participating in the Flint Men's Health Study. Logistic regression was then used to estimate their association with prostate cancer and obesity.ResultsWhile no significant associations were detected between any of the tested SNPs and prostate cancer, the rs1501299 SNP in ADIPOQ was significantly associated with body mass (p=0.03).ConclusionsGenetic variation in ADIPOQ and ADIPOR1 did not predict risk of prostate cancer in this study of African American men. However, the rs1501299 SNP in ADIPOQ was associated with obesity. Further investigation is warranted to determine if racial differences exist in the influence of the adiponectin pathway on prostate cancer risk.
Anisotropic criteria for the type of superconductivity
Creators: name: Kogan, V. G.
name: Prozorov, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The classical criterion for classification of superconductors as type-I or type-II based on the isotropic Ginzburg-Landau theory is generalized to arbitrary temperatures for materials with anisotropic Fermi surfaces and order parameters. We argue that the relevant quantity for this classification is the ratio of the upper and thermodynamic critical fields, $H_{c2}/H_c$, rather than the traditional ratio of the penetration depth and the coherence length, $λ/ξ$. Even in the isotropic case, $H_{c2}/H_c$ coincides with $\sqrt{2}λ/ξ$ only at the critical temperature $T_c$ and they differ as $T$ decreases, the long known fact. Anisotropies of Fermi surfaces and order parameters may amplify this difference and render false the criterion based on the value of $κ=λ/ξ$.
Deep Reinforcement Learning zur Steigerung von Energieeffizienz und Pünktlichkeit von Straßenbahnen
Creators: name: Tesar, Markus
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023
Subjects: Straßenbahn
KI
Energieeffizienz
Pünktlichkeit
Modellierung
Light Rail
AI
Energy Efficiency
Punctuality
Modelling

description: Diese Arbeit untersucht, wie die Energieeffizienz und Pünktlichkeit von Straßenbahnen durch den Einsatz von KI gesteigert werden können. Auf zwei Szenarien wird die KI zu je drei Verkehrszeiten trainiert. Die ermittelten Fahrprofile werden mit denen von Fahrern aus dem regulären Fahrgastbetrieb sowie mit einem durch Dynamic Programming ermittelten theoretischen Optimum verglichen. Darüber hinaus werden Transferlernfähigkeiten der KI untersucht.
The Einstein metrics with smooth scri
Creators: name: Tafel, Jacek
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider solutions of the Einstein equations with cosmological constant $Λ\neq 0$ admitting conformal compactification with smooth scri $\mathscr{I^+}$. Metrics are written in the Bondi-Sachs coordinates and expanded into inverse powers of the affine distance $r$. Unlike in the case $Λ=0$ all free data are located on the scri. There are linear differential constraints on the Bondi mass and angular momentum aspects. All other components of metrics are defined in a recursive way.
description: 10 pages
Using of co-word analysis method in mapping of the structure of scientific fields(case study: The field of Informetrics)
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2015

description: Based on the co-occurrence analysis method, the scientific fields can be extracted and the relationships between them can be detected directly from their subject content. With this view, the aim of this study is to determine of the subfields of informetrics and the relationships between of these subfields, and thus to investigate the efficiency of this method and its application in mapping of the structure of scientific fields.This is an applied study using scientometrics, co-word analysis and network analysis methods. in order to determine the main concepts in the field of informetrics, all the scientific papers of international scholars in this field were extracted from WOS (included ٧٣٧٥ record from 1991 to 2012). Then after refining and standardizing of the keywords of these articles, a selected list of these keywords was prepared. Using the results of the data analysis, the trend in publication growth in the field of informetrics and each of its subfields was identified.Then the thematic maps were drawn using Vosviewer and Nodexl software. The resulting data of the maps and the structure of the formed clusters and their inter-relationships have been analysed. Based on the resulted maps the concepts such as information science, library, bibliometric analysis, innovation and text mining are the most widely used topics in the field of informetrics. The co-word occurrence maps drawn at the different time periods show the changes and stabilities in the concepts and terms related to the field of informetrics. Some words like "bibliometric analysis" are present in all the studied years, while others disappear over time. In interacting with developments and new technologies, the new concepts can be created.
The chiral phase transition in two-flavor QCD from imaginary chemical potential
Creators: name: Bonati, Claudio
name: de Forcrand, Philippe
name: D'Elia, Massimo
name: Philipsen, Owe
name: Sanfilippo, Francesco
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the order of the finite temperature chiral symmetry restoration transition for QCD with two massless fermions, by using a novel method, based on simulating imaginary values of the quark chemical potential $μ=iμ_i,μ_i\in\mathbb{R}$. Our method exploits the fact that, for low enough quark mass $m$ and large enough chemical potential $μ_i$, the chiral transition is decidedly first order, then turning into crossover at a critical mass $m_c(μ)$. It is thus possible to determine the critical line in the $m - μ^2$ plane, which can be safely extrapolated to the chiral limit by taking advantage of the known tricritical indices governing its shape. We test this method with standard staggered fermions and the result of our simulations is that $m_c(μ=0)$ is positive, so that the phase transition at zero density is definitely first order in the chiral limit, on our coarse $N_t=4$ lattices with $a\simeq 0.3\,\mathrm{fm}$.
description: Minor corrections, final version
WorkflowHub: FAIR Workflow Registry
Creators: name: Clark-Casey, Justin
name: Goble, Carole
name: Bacall, Finn
name: Coppens, Frederik
name: WorkflowHub Club
Publisher: name: Zenodo
Year: 2022

description: Computational workflows are widely used in scientific analysis for scalable transparent and reproducible data processing pipelines and analytics across many disciplines and prevalent in ESFRIs and EOSC. Multiple open workflow management systems are available to researchers, each with their own siloed communities and ESFRIs. Enabling them to be FAIR is essential for researcher productivity, knowledge sharing, trust in publications and the democratisation of analysis. The WorkflowHub registry (https://workflowhub.eu), developed by the EOSC-Life Cluster but discipline and platform agnostic, enables researchers and developers so all can benefit from workflow discovery and reuse within and between disciplines and ESFRIs. This talk introduces the WorkflowHub and its many features. The WorkflowHub is registered in the EOSC Service catalogue, included by many EOSC/ESFRI projects in their work programmes and available to all EOSC and ESFRI communities. Computational workflows are widely used in scientific analysis across many disciplines and prevalent in ESFRIs and EOSC, each with their own siloed communities and ESFRIs. The WorkflowHub was developed by EOSC-Life Cluster and is used by many EOSC/ESFRIs projects, including EOSC4Cancer, BioDT, DISSCo, IBISBA, EuroScienceGateway, BY-COVID and so on.
GP-MOOD: A positive-preserving high-order finite volume method for hyperbolic conservation laws
Creators: name: Bourgeois, Rémi
name: Lee, Dongwook
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present an a posteriori shock-capturing finite volume method algorithm called GP-MOOD that solves a compressible hyperbolic conservative system at high-order solution accuracy (e.g., third-, fifth-, and seventh-order) in multiple spatial dimensions. The GP-MOOD method combines two methodologies, the polynomial-free spatial reconstruction methods of GP (Gaussian Process) and the a posteriori detection algorithms of MOOD (Multidimensional Optimal Order Detection). The spatial approximation of our GP-MOOD method uses GP's unlimited spatial reconstruction that builds upon our previous studies on GP reported in Reyes et al., Journal of Scientific Computing, 76 (2017) and Journal of Computational Physics, 381 (2019). This paper focuses on extending GP's flexible variability of spatial accuracy to an a posteriori detection formalism based on the MOOD approach. We show that GP's polynomial-free reconstruction provides a seamless pathway to the MOOD's order cascading formalism by utilizing GP's novel property of variable (2R+1)th-order spatial accuracy on a multidimensional GP stencil defined by the GP radius R, whose size is smaller than that of the standard polynomial MOOD methods. The resulting GP-MOOD method is a positivity-preserving method. We examine the numerical stability and accuracy of GP-MOOD on smooth and discontinuous flows in multiple spatial dimensions without resorting to any conventional, computationally expensive a priori nonlinear limiting mechanism to maintain numerical stability.
The Bibliographic Comparison of Information Management and Knowledge Management fields through their Scientific outputs With the Emphasis on the share of Information Science in Each of these Fields
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2015

description: The evolution of cognition a field starts with concentration on concepts, words and terms of that field. In information science field, distinction and similarity between information and knowledge has involved discussions, part of which has been transferred to information management and knowledge management fields. Therefore, the current research has been carried out with the purpose of comparing scientific products of information management and knowledge management fields in WOS and determining the share of library and information science in any of these fields and the scientific products of Iran has been specially studied. This research is conducted applying scientometric method and the population of the research consists of 1457 documents of information management field, 5993 documents of information management field, and 183 documents belonging to both information management and knowledge management fields indexed in WoS. Results of these data analysis shows that although knowledge management field is much younger than information management field, after 15 years from the emergence of this field, the number of documents belonging to this field has taken precedence over documents belonging to information management one, to the extent that in the last research conducted in this regard (2012), the number published documents of knowledge management field is two times more than those of information management one. Based on Web of Science Category Terms in information management field, library and information science has ranked first, while in knowledge management field, library and information science has ranked second. In other words, journals in library and information science field more than journals in other fields have published information management documents, while journals of management field more than other types of journals in other field have published knowledge management documents. Investigating authors with the most number of publications in any of the fields under study shows that these authors consider information management and knowledge management fields as two completely distinct fields. Subject analysis of Iran’s documents and also affiliation of highly productive Iranian authors in these fields show that the status of Iran is in line with the universal status of the field, and Iranian librarians do not have a significant role in knowledge management. A noteworthy finding of this research is that information management and knowledge management fields and especially the latter one are not exclusively controlled by librarians, but if librarians and information specialists want to play a key role in knowledge management phenomenon, they have to get acquainted with the various viewpoints and attitudes of other players of the field.
Gonadotropin-releasing hormone agonist overuse: urologists’ response to reimbursement and characteristics associated with persistent overuse
Creators: name: Jackson, G L
name: Liu, H
name: Nielsen, M E
name: Carpenter, W R
name: Ellis, S D
name: Weinberger, M
name: Wheeler, S B
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: BACKGROUNDMedicare reimbursement cuts have been associated with declining Gonadotropin-releasing Hormone (GnRH) agonist overuse in localized prostate cancer. Medical school affiliation and foreign training have been associated with persistent overuse. However, physician-level prescribing changes and the practice type of persistent overusers have not been examined. We sought to describe physician-level changes in GnRH agonist overuse and test the association of time in practice and solo practice type with GnRH agonist overuse.METHODSWe matched American Medical Association physician data for 2,138 urologists to SEER–Medicare data for 12,943 men diagnosed with early stage and lower grade adenocarcinoma of the prostate between 2000 and 2007. We conducted a population-based, retrospective study using multi-level modeling to control for patient and provider characteristics.RESULTSThree distinct patterns of GnRH agonist overuse were observed. Urologists’ time in practice was not associated with GnRH agonist overuse (OR 0.89; 95% CI 0.75–1.05).However, solo practice type (OR 1.65; 95% CI 1.34–2.02), medical school affiliation (OR 0.65; 95% CI 0.55–0.77), and patient race were. Compared to non-Hispanic whites, non-Hispanic blacks (OR 1.76; 95% CI 1.37–2.27), Hispanics (OR 1.41; 95% CI 1.12–1.79) and men of “other” race (OR 1.44; 95% CI 1.04–1.99) had greater odds of receiving unnecessary GnRH agonists.CONCLUSIONSGnRH agonist overuse remains high among some urologists who may be professionally isolated and difficult to reach. These urologists treat more vulnerable populations, which may contribute to health disparities in prostate cancer treatment quality. Nonetheless, these findings provide guidance to develop interventions to address overuse in prostate cancer.
Modeling In vivo Wireless Path Loss
Creators: name: Liu, Yang
name: Ketterl, Thomas P.
name: Arrobo, Gabriel E.
name: Gitlin, Richard D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Our long-term research goal is to model the in vivo wireless channel. As a first step towards this goal, in this paper we performed in vivo path loss measurements at 2.4GHz and make a comparison with free space path loss. We calculate the path loss by using the electric field radiated by a Hertzian-Dipole located inside the abdominal cavity. The simulations quantify and confirm that the path loss falls more rapidly inside the body than outside the body. We also observe fluctuations of the path loss caused by the inhomogeneity of the human body. In comparison with the path loss measured with monopole antennas, we conclude that the significant variations in Received Signal Strength is caused by both the angular dependent path loss and the significantly modified in vivo antenna effects.
C*-envelopes of tensor algebras of product systems
Creators: name: Sehnem, Camila F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Let $P$ be a submonoid of a group $G$ and let $\mathcal{E}=(\mathcal{E}_p)_{p\in P}$ be a product system over $P$ with coefficient C*-algebra $A$. We show that the following C*-algebras are canonically isomorphic: the C*-envelope of the tensor algebra $\mathcal{T}_λ(\mathcal{E})^+$ of $\mathcal{E}$; the reduced cross sectional C*-algebra of the Fell bundle associated to the canonical coaction of $G$ on the covariance algebra $A\times_{\mathcal{E}}P$ of $\mathcal{E}$; and the C*-envelope of the cosystem obtained by restricting the canonical gauge coaction on $\mathcal{T}_λ(\mathcal{E})$ to the tensor algebra. As a consequence, for every submonoid $P$ of a group $G$ and every product system $\mathcal{E}=(\mathcal{E}_p)_{p\in P}$ over $P$, the C*-envelope $\mathcal{C}^*_{\mathrm{env}}(\mathcal{T}_λ(\mathcal{E})^+)$ automatically carries a coaction of $G$ that is compatible with the canonical gauge coaction on $\mathcal{T}_λ(\mathcal{E})$. This answers a question left open by Dor-On, Kakariadis, Katsoulis, Laca and Li. We also analyse co-universal properties of $\mathcal{C}^*_{\mathrm{env}}(\mathcal{T}_λ(\mathcal{E})^+)$ with respect to injective gauge-compatible representations of $\mathcal{E}$. When $\mathcal{E}=\mathbb{C}^P$ is the canonical product system over $P$ with one-dimensional fibres, our main result implies that the boundary quotient $\partial\mathcal{T}_λ(P)$ is canonically isomorphic to the C*-envelope of the closed non-selfadjoint subalgebra spanned by the canonical generating isometries of $\mathcal{T}_λ(P)$. Our results on co-universality imply that $\partial\mathcal{T}_λ(P)$ is a quotient of every nonzero C*-algebra generated by a gauge-compatible isometric representation of $P$ that in an appropriate sense respects the zero element of the semilattice of constructible right ideals of $P$.
description: 22 pages; a change of terminology from previous version: 'Fock algebra' was replaced by 'Toeplitz algebra' in v2; this is the accepted version
Collisional excitation of water by hydrogen atoms
Creators: name: Daniel, F.
name: Faure, A.
name: Dagdigian, P. J.
name: Dubernet, M. -L.
name: lique, F.
name: forêts, G. Pineau des
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present quantum dynamical calculations that describe the rotational excitation of H$_2$O due to collisions with H atoms. We used a recent, high accuracy potential energy surface, and solved the collisional dynamics with the close-coupling formalism, for total energies up to 12 000 cm$^{-1}$. From these calculations, we obtained collisional rate coefficients for the first 45 energy levels of both ortho- and para-H$_2$O and for temperatures in the range T = 5-1500 K. These rate coefficients are subsequently compared to the values previously published for the H$_2$O / He and H$_2$O / H$_2$ collisional systems. It is shown that no simple relation exists between the three systems and that specific calculations are thus mandatory.
Effects of Contextual Factors on Information Seeking Behavior on the Web by Postgraduate Students at Kerman University of Medical Sciences
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2015

description: This paper aims to determine the influence of contextual factors on information seeking behavior. This survey investigates search tactics used and users’ perceptions of the search results on the Web by postgraduate students at Kerman University of Medical Sciences. This study was conducted through a mixed method. Thirty postgraduate students voluntarily participated. The study was carried out in the first semester of the academic year 2012-2013. The data was gathered using two questionnaires and log files recorded with Camtasia Studio software. The findings indicated more than half of the participants (53.3 percent) used Google, short queries were more used than long queries, advanced search options were used rarely (23 percent), and the participants view few search result pages. According to the results, the contextual factors significantly influenced the search time, search tactics (including querying and navigating) and users’ perceptions of the search results (including ease of use, usefulness, satisfaction and relevance judgment). Navigating tactic was primarily used by the participants. Among different aspects of users’ perceptions of the search results, ease of use and relevance judgments were significantly different based on the contextual factors, whereas scanning, extracting, and confidence were less affected by the contextual factors. The findings suggest practical implications for information retrieval systems designers that can design of systems with better user interface in order to meet the needs of users with different knowledge and skills, in this way it leads in promotion of search process and improvement of search results quality.
Hrs inhibits citron kinase-mediated HIV-1 budding via its FYVE domain
Creators: name: Ding, Jiwei
name: Gao, Guangxia
name: Su, Lishan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Hepatocyte growth factor-regulated tyrosine kinase substrate (Hrs) is a key component of the endosomal sorting complexes required for transport and has been demonstrated to play a regulatory role in endocytosis/exocytosis and the accumulation of internal vesicles in multivesicular bodies. Citron kinase is a Ser/The kinase that we previously reported to enhance human immunodeficiency virus type 1 (HIV-1) virion production. However, the relationship between Hrs and citron kinase in HIV-1 production remains elusive. Here, we report that Hrs interacts with citron kinase via its FYVE domain. Overexpression of Hrs or the FYVE domain resulted in a significant decrease in HIV-1 virion production. Depletion of Hrs by RNA interference in HEK293T cells increased HIV-1 virion production and enhanced the activity of citron kinase. These data suggest that Hrs inhibits HIV-1 production by inhibiting citron kinase-mediated exocytosis.
The enzymatic activity of Arabidopsis protein arginine methyltransferase 10 is essential for flowering time regulation
Creators: name: Lu, Falong
name: Zhao, Taolan
name: Liu, Chunyan
name: Cao, Xiaofeng
name: Niu, Lifang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Arabidopsis AtPRMT10 is a plant-specific type I protein arginine methyltransferase that can asymmetrically dimethylate arginine 3 of histone H4 with auto-methylation activity. Mutations of AtPRMT10 derepress FLOWERING                         LOCUS C (FLC) expression resulting in a late-flowering phenotype. Here, to further investigate the biochemical characteristics of AtPRMT10, we analyzed a series of mutated forms of the AtPRMT10 protein. We demonstrate that the conserved "VLD" residues and "double-E loop" are essential for enzymatic activity of AtPRMT10. In addition, we show that Arg54 and Cys259 of AtPRMT10, two residues unreported in animals, are also important for its enzymatic activity. We find that Arg13 of AtPRMT10 is the auto-methylation site. However, substitution of Arg13 to Lys13 does not affect its enzymatic activity. In vivo complementation assays reveal that plants expressing AtPRMT10 with VLD-AAA, E143Q or E152Q mutations retain high levels of FLC expression and fail to rescue the late-flowering phenotype of atprmt10 plants. Taken together, we conclude that the methyltransferase activity of AtPRMT10 is essential for repressing FLC expression and promoting flowering in Arabidopsis.
Attitude and Incentives of Payam-e-Noor University Academics regarding e-learning
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2015

description: The main purpose of this study was to investigate attitude and incentives of academic staff on e-learning lecturing in all Payam-e-Noor Universities of Ardabil province, Iran. The target population of the study comprised of 600 lecturers out of which a sample of 160 participants was randomly selected. In this descriptive correlational research, a self-made questionnaire was administered after securing its validity and reliability. Data revealed that all participants had positive attitudes towards e-learning. Factor analysis explored four factors influencing instructors' attitude towards e-learning –i.e. improving educational effectiveness via e-learning developing the instructor and student rapport introducing legal and spiritual support for e-learning’s input and output and finally incorporating traditional and electronic learning. Moreover, personal interest of the lecturers regarding information technology applications in educational settings, their continuous career development and participation in e-learning projects were proved to be the most important incentives of the respondents.
Securing Medical Images by Watermarking Using DWT DCT and SVD
Creators: name: Rathi, Nilesh
name: Holi, Ganga
Publisher: name: arXiv
Year: 2014
Subjects: subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Telemedicine is well known application where enormous amount of medical data need to be transferred securely over network and manipulate effectively. Security of digital data, especially medical images, becomes important for many reasons such as confidentiality, authentication and integrity. Digital watermarking has emerged as a advanced technology to enhance the security of digital images. The insertion of watermark in medical images can authenticate it and guarantee its integrity. The watermark must be generally hidden does not affect the quality of the medical image. In this paper, we propose blind watermarking based on Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT) and Singular Value Decomposition (SVD), we compare the performance of this technique with watermarking based DWT and SVD. The proposed method DWT, DCT and SVD comparatively better than DWT and SVD method.
description: 9 pages, 14 figures, 4 tables, Published with International Journal of Computer Trends and Technology (IJCTT)
Supplementary document for Dynamic measurement of angular Goos-Hänchen shift at surface plasmon resonance in liquid - 6662256.pdf
Creators: name: olaya, cherrie may
name: Hayazawa, Norihiko
name: balgos, maria herminia
name: Tanaka, Takuo
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document
Flavor probes of axion-like particles
Creators: name: Bauer, Martin
name: Neubert, Matthias
name: Renner, Sophie
name: Schnubel, Marvin
name: Thamm, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Axions and axion-like particles (ALPs) are well-motivated low-energy relics of high-energy extensions of the Standard Model (SM). We investigate the phenomenology of an ALP with flavor-changing couplings, and present a comprehensive analysis of quark and lepton flavor-changing observables within a general ALP effective field theory. Observables studied include rare meson decays, flavor oscillations of neutral mesons, rare lepton decays, and dipole moments. We derive bounds on the general ALP couplings as a function of its mass, consistently taking into account the ALP lifetime and branching ratios. We further calculate quark flavor-changing effects that are unavoidably induced by running and matching between the new physics scale and the scale of the measurements. This allows us to derive bounds on benchmark ALP models in which only a single (flavorless or flavor-universal) ALP coupling to SM particles is present at the new physics scale, and in this context we highlight the complementarity and competitiveness of flavor bounds with constraints derived from collider, beam dump and astrophysical measurements. We find that searches for ALPs produced in meson decays provide some of the strongest constraints in the MeV-GeV mass range, even for the most flavorless of ALP models. Likewise, we discuss the interplay of flavor-conserving and flavor-violating couplings of the ALP to leptons, finding that constraints from lepton flavor-violating observables generally depend strongly on both. Additionally, we analyze whether an ALP can provide an explanation for various experimental anomalies including those observed in rare B-meson decays, measurements at the ATOMKI and KTeV experiments, and in the anomalous magnetic moments of the muon and the electron.
description: 121 pages, 46 figures (we are sorry!)