cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Urban Heat Management and the Legacy of Redlining
Creators: name: Wilson, Bev
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Problem, research strategy, and findings: Historical patterns of discrimination and disinvestment have shaped the current landscape of vulnerability to heat in U.S. cities but are not explicitly considered by heat mitigation planning efforts. Drawing upon the equity planning framework and developing a broader conceptualization of what equity means can enhance urban heat management. Here I ask whether areas in Baltimore (MD), Dallas (TX), and Kansas City (MO) targeted for disinvestment in the past through practices like redlining are now more exposed to heat. I compare estimates of land surface temperature (LST) derived from satellite imagery across the four-category rating system used to guide lending practices in cities around the United States, summarize the demographic characteristics of current residents within each of these historical designations using U.S. Census data, and discuss the connection between systematic disinvestment and exposure to heat. LST and air temperatures are not equivalent, which makes it difficult to reconcile existing research on the human health impacts of heat exposure that rely on a sparse network of air temperature monitoring stations with more granular LST data. Areas of these cities that were targeted for systematic disinvestment in the past have higher mean land surface temperatures than those that received more favorable ratings. Poor and minority residents are also overrepresented in formerly redlined areas in each of the three study cities. Takeaway for practice: By examining areas that have experienced sustained disinvestment, cities may be able to more quickly narrow the focus of heat mitigation planning efforts while furthering social equity. Efforts to mitigate the negative impacts of rising temperatures in U.S. cities must be tailored to the local climate, built environment, and sociodemographic history. Finally, geospatial data sets that document historical policies are useful for centering and redressing current inequalities when viewed through an equity planning lens.
Using Exploratory Scenarios in Planning Practice
Creators: name: Avin, Uri
name: Goodspeed, Robert
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Problem, research strategy, and findings: Despite growing interest by practitioners in using exploratory scenarios within urban planning practice, there are few detailed guidelines for how to do this. Through the discussion of five case examples, we illustrate different approaches to linking exploratory scenarios to different planning contexts. We conclude by observing that to directly inform a plan, regardless of the specific approach taken, exploratory scenarios in urban planning must incorporate stakeholder values and not only rely on expert judgment and analysis. Takeaway for practice: Exploratory scenarios are effective for analyzing uncertainty within a planning process. However, exploratory scenarios can be incorporated into planning practice in different ways, ranging from workshops among experts that aim to cultivate general learning to complex projects that result in highly detailed scenarios and recommendations for plans. Practitioners can draw on the cases we present to inspire planning methods for particular projects, taking into account specific contexts and goals.
Histopathologic Response in the Fathead Minnow (Pimephales promelas) Exposed to 2,4-Dinitrotoluene in an Early Life Stage Toxicity Test.
Creators: name: Broich, Stephen G.
Publisher: name: Maryland Shared Open Access Repository
Year: 1982

description: The histopathologic examination of fathead minnows (Pimephales promelas) exposed to 2,4-dinitrotoluene (2,4-DNT) in an early life stage (ELS) toxicity test was compared with a chronic life cycle test performed by Liu and Bailey (1981) at SRI International (SRI). Pathologic conditions associated with 2,4-DNT exposure were found in the gill, liver, spleen and trunk kidney . in all concentrations tested (ranging from 0.27 - 3.58 mg/L). Edematous "ballooning" and fused "blanketing" of secondary lamellae characterized gill damage. Lipid accumulation and limited focal fatty necrosis were observed in the liver. Abnormal accumulations of hemosiderin in the spleen and atypical renal tubules and corpuscles in the trunk kidney were evident. A weighting scheme was applied based on biological significance of the lesions observed to determine a no-effect level. No threshold level was attained below which histologic effects would be expected to be absent. The SRI chronic maximum allowable toxicant concentration (MATC) was less than 0.44 mg/L 2,4-DNT. In the ELS test, the MATC was less than 0.27 mg/L 2,4-DNT. Thirty day survival effects in the ELS test compared favorably. Thirty day SRI F0 growth effects were found at concentrations of 1.75 mg/L and above. No growth effects were observed in the ELS test at concentrations up to 3.58 mg/L. Based on these comparisons, the usefulness and sensitivity of ELS toxicity testing is increased with the addition of histopathologic evaluation, thereby helping to formulate more appropriate water quality criteria.
Public health and budgetary impact of 20-valent pneumococcal conjugate vaccine for adults in England
Creators: name: Mugwagwa, Tendai
name: Averin, Ahuva
name: Atwood, Mark
name: Sato, Reiko
name: Vyse, Andrew
name: Campling, James
name: Weycker, Derek
name: Slack, Mary
name: Ellsbury, Gillian
name: Mendes, Diana
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: . Despite use of 23-valent pneumococcal polysaccharide vaccine (PPV23) in England, disease burden among at-risk adults remains high. We evaluated the public health and budgetary impact of 20-valent pneumococcal conjugate vaccine (PCV20) compared to the current adult pneumococcal vaccination program. Five-year outcomes and costs of invasive pneumococcal disease (IPD) and community-acquired pneumonia (CAP) among adults aged 65-99 years and adults aged 18-64 years with underlying conditions in England were projected using a deterministic cohort model. Hypothetical vaccination with PCV20 versus PPV23 was compared from National Health Service (NHS) perspective. Replacing PPV23 with PCV20 would prevent 785 IPD hospitalizations, 11,751 CAP hospitalizations, and 1,414 deaths over five years, and would reduce medical care costs by £48.5M. With vaccination costs higher by £107.2M, projected net budgetary impact is £58.7M. The budgetary impact would be greatest in year one (£26.3M), and would decrease over time (to £1.6M by year five). The average budget increase (£11.7M/year) represents <0.01% of the Department of Health and Social Care budget and <3% of the vaccines budget. Use of PCV20 among adults currently eligible for PPV23 in England would substantially reduce the burden of pneumococcal disease, with modest budgetary impact.
Detection of IgG-Associated Determinants in Reduced and Alkylated Preparations of Human IgG3 by Monoclonal Antibodies
Creators: name: Brown, Adrienne M.
Publisher: name: Maryland Shared Open Access Repository
Year: 1985

description: Using classical typing antisera, previous experiments have failed to demonstrate IgG3 in partially reduced and alkylated preparations of human IgG intended for intravenous application (IGIV). To establish that IgG3 is actually present in such preparations and to investigate the effects of reduction and alkylation on IgG3-associated epitopes, an enzyme-linked immunosorbent assay (ELISA) was designed using monoclonal antibodies as solid phase reagents and protein A-purified IgG3 as antigen. Three different samples of reduced and alkylated antigen were used: 1) IgG3 isolated from a ready-for-infusion IGIV; 2) IgG3 which was purified from an intramuscular (Cohn Fraction II) IgG solution before being subjected to a mild reduction and alkylation procedure; and 3) completely reduced and alkylated IgG3. The reduction and alkylation procedure did not affect the solubility of IgG3, indicating that IGIV prepared in this manner should contain normal quantities of IgG3. In the ELISA, solid-phase monoclonals which were cross-reactive with multiple IgG subclasses clearly reacted with reduced and alkylated IgG3. Furthermore, there was no substantial difference between the quantities of modified and native antigen required for 50% maximal ELISA signal. In contrast, solid-phase monoclonals with IgG3-restricted specificity did not recognize reduced and alkylated material. These results indicate that IGIV prepared by reduction and alkylation has a normal IgG3 content and confirm that some IgG3-specific determinants are altered by the modification procedure.
Visualisierungsstrategien in der quantitativen Wissenschaftsforschung
Creators: name: Jahn, Najko
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2010

description: Bezweifelte Platon in seinem Liniengleichnis noch, dass von Bildern ein wissenschaftlich akzeptabler Erkenntniswert ausgehe, so sind heutzutage in vielen (natur-)wissenschaftlichen Gebieten Bildtechniken für die Wissensproduktion und -darstellung unerlässlich. In der quantitativen Wissenschaftsforschung ist vor allem die Übersetzung von Daten in Diagramme zu beobachten. Bereits mit den Untersuchungen des Biomathematikers Alfred Lotka zu den Häufigkeitsverteilungen wissenschaftlicher Produktivität (1926) ist das Sichtbarmachen von Daten (Visualisierung) ein fester Bestandteil für die Beantwortung wissenschaftssoziologischer Fragestellungen. Visualisierungen spielen aber auch in Anwendungs- und Beratungskontexten eine zunehmende Rolle, womit sich ein mögliches Handlungsfeld für Bibliotheken ergibt. Der Vortrag führt zuerst in den Stellenwert von Visualisierungen in den Wissenschaften für die Erkenntnisgewinnung und ihrer Popularisierung ein. Anschließend werden anhand der Sozialen Netzwerkanalyse bibliometrische Grundkonzepte graphentheoretisch hergeleitet sowie Beispiele im Umfeld der Bibliothek vorgestellt. Dass diese Methoden nicht nur auf Zitations- oder Nutzungsdaten begrenzt sind, zeigt abschließend ihre Anwendung auf den Begutachtungsprozess einer europäischen Wissenschaftsvereinigung.
description: Kolloquium Wissensinfrastruktur, Wintersemester 2009/2010
FELINE IMMUNODEFICIENCY VIRUS IN EXOTIC FELIDS: A SEROEPIDEMIOLOGIC AND PHYLOGENETIC CHARACTERIZATION
Creators: name: Brown, Eric Wayne
Publisher: name: Maryland Shared Open Access Repository
Year: 1993

description: Feline immunodeficiency virus is a recently isolated T-lymphotropic lentivirus that is genetically homologous and functionally analagous to the human AIDS viruses, HIV-1 and HIV-2. FIV has been documented to cause immunosuppression by gradually destroying the CD4 bearing T-cell subsets in infected domestic cats. Recent studies have revealed the existence of cross-reactive antibodies to FIV in several species of nondomestic felids. This thesis reports on the results of a seroepidemiologic survey of nearly 2000 serum samples from 20 different feline species and a molecular characterization of the pol gene from African lion FIV isolates. Evidence of exposure to feline lentiviruses was found in ten species of felids including lions, pumas, cheetahs, and bobcats. FIV exposure rates were found to be endemic in several populations of East African lions with an incidence as high as 90% in some areas. This report also documents the natural seroconversion of two East African lions. The phylogenetic reconstruction of the conserved viral poi gene has revealed huge intra- and inter- individual genetic diversity at the sequence level. The analysis has shown that feline lentiviruses appear to assort monophyletically with respect to the host species suggesting that interspecies transfer is a rare event. Three major phylogenetic clades of lion lentivirus (LLV) have been described that may be ancestral in their origins. The physiological consequences of FIV infection in big cats remains unclear, but the results of these studies show large parallels to the natural history of SIV infection in African primates, notably of the genus, Cercopithecus.
PLACENTAL MONOCYTE FUNCTION
Creators: name: Brown, Irene A.
Publisher: name: Maryland Shared Open Access Repository
Year: 1996

description: Modern technological advances have allowed investigators to learn a great deal about the feto-maternal interface. However, much is still not understood about the immunological basis of a successful pregnancy. Even though a few fetal erythrocytes and leukocytes escape into maternal circulation and minor breaks in the placental barrier allow cells to escape in both directions, cells of the embryo normally do not come into direct contact with maternal blood. Maternal blood flows into the placenta filling the intervillous spaces and circulates around the fetal villous tree. The focus of this study was to investigate maternal monocyte function at the time of labor and delivery, particularly the ability to activate monocytes to phagocytize bacteria. Maternal peripheral blood was collected during labor and again within 24 hours of delivery. Placentas were harvested and maternal blood from the intervillous spaces was collected within 6 hours of delivery. Monocytes were separated from all whole blood test specimens as well as nonpregnant female control subjects by density gradient centrifugation and adhesion of monocytes to plastic. The monocytes were then incubated in culture medium with an equal ratio of Listeria monocytogenes bacilli. Monocytes were treated with recombinant human gamma-interferon as an activation signal. No significant difference in the number of viable phagocytized bacteria between interferon-treated and untreated monocytes was observed in any of the test specimens. There was a small, yet statistically relevant, increase in the interferon-treated control cells after 20 hours incubation. The inability of interferon alone to activate monocytes from the placenta and peripheral circulation of women during delivery may be due to the need of a second cooperative signal, perhaps TNF-a or GM-CSF. An alternative is that due to the nature of the processes of labor and delivery, there were present both locally in the placenta and globally in the general circulation various mediators that have the ability to initiate labor and modulate monocyte activity. Further study is warranted to test the ability to activate these monocytes. The production of reactive nitrogen and oxygen intermediates could be assayed as well as the effect of various uterotonins on the activation process. If the immunological processes preventing the rejection of a genetically dissimilar fetus were understood, progress could be made in transplantation science as well as the treatment of infertility and novel approaches to birth control.
Making Room for the River
Creators: name: Siyu Yu
name: A. D. Brand
name: Berke, Philip
Publisher: name: Taylor & Francis
Year: 2020
Subjects: Cancer

description: Problem, research strategy, and findings: In this study we analyze plan integration for flood resilience in the city of Nijmegen, the site of the largest Room for the River project in The Netherlands. Little is known about the degree to which local and regional plans are coordinated with the national Room for the River program or about the cumulative influence of plans on flood vulnerability. To effectively investigate these issues, we use and build upon the Plan Integration for Resilience Scorecard (PIRS) concept and method, which analyzes the consistency and effects of networks of plans on community vulnerability. We expand the scope to include plans from multiple administrative scales and the focus to include environmental vulnerability. Using a three-phase evaluation process, we demonstrate that Room for the River policies are well integrated in Nijmegen’s network of plans, particularly with respect to flood safety and natural protection. However, we also find that policies at different administrative scales lack consistency in some places, some socially vulnerable neighborhoods receive comparatively little policy attention, and local plans often prioritize development over flood resilience, though higher tier plans sometimes make up for these policy gaps. Flood resilience is still finding its way in the Dutch planning system. Takeaway for practice: The PIRS offers planning practitioners a method to assess how networks of plans influence community vulnerability and, as demonstrated in this analysis, to determine the degree to which plans at multiple administrative scales target the most physically, socially, and environmentally vulnerable geographic areas. It can be used to support the ambitious goals of a program like Room for the River and align them with local development priorities.
Equivalence of Gouy and Courant-Snyder Phase
Creators: name: Floettmann, Klaus
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: The generation of electron vortex beams and the conversion of these beams into beams without angular momentum by means of astigmatic optical systems, or vice versa, has been pursued in the optical and the electron microscopy community, but also in the accelerator community in the past decades. Despite different conceptual approaches similar results have been achieved. By adapting the Courant-Snyder theory, which was originally developed for the description of optical properties of accelerators, to the description of laser modes it is shown, that identical mode converters have been developed for charged particle and for light beams, and that the Courant-Snyder phase and the Gouy phase are equivalent.
Data-Driven Approaches to Searches for the Technosignatures of Advanced Civilizations
Creators: name: Lazio, T. Joseph W.
name: Djorgovski, S. G.
name: Howard, Andrew
name: Cutler, Curt
name: Sheikh, Sofia Z.
name: Cavuoti, Stefano
name: Herzing, Denise
name: Wagstaff, Kiri
name: Wright, Jason T.
name: Gajjar, Vishal
name: Hand, Kevin
name: Rebbapragada, Umaa
name: Allen, Bruce
name: Cartmill, Erica
name: Foster, Jacob
name: Gelino, Dawn
name: Graham, Matthew J.
name: Longo, Giuseppe
name: Mahabal, Ashish A.
name: Pachter, Lior
name: Ravi, Vikram
name: Sussman, Gerald
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: Humanity has wondered whether we are alone for millennia. The discovery of life elsewhere in the Universe, particularly intelligent life, would have profound effects, comparable to those of recognizing that the Earth is not the center of the Universe and that humans evolved from previous species. There has been rapid growth in the fields of extrasolar planets and data-driven astronomy. In a relatively short interval, we have seen a change from knowing of no extrasolar planets to now knowing more potentially habitable extrasolar planets than there are planets in the Solar System. In approximately the same interval, astronomy has transitioned to a field in which sky surveys can generate 1 PB or more of data. The Data-Driven Approaches to Searches for the Technosignatures of Advanced Civilizations_ study at the W. M. Keck Institute for Space Studies was intended to revisit searches for evidence of alien technologies in light of these developments. Data-driven searches, being able to process volumes of data much greater than a human could, and in a reproducible manner, can identify *anomalies* that could be clues to the presence of technosignatures. A key outcome of this workshop was that technosignature searches should be conducted in a manner consistent with Freeman Dyson's "First Law of SETI Investigations," namely "every search for alien civilizations should be planned to give interesting results even when no aliens are discovered." This approach to technosignatures is commensurate with NASA's approach to biosignatures in that no single observation or measurement can be taken as providing full certainty for the detection of life. Areas of particular promise identified during the workshop were (*) Data Mining of Large Sky Surveys, (*) All-Sky Survey at Far-Infrared Wavelengths, (*) Surveys with Radio Astronomical Interferometers, and (*) Artifacts in the Solar System.
description: Final Report prepared for the W. M. Keck Institute for Space Studies (KISS), http://kiss.caltech.edu/workshops/technosignatures/technosignatures.html ; eds. Lazio, Djorgovski, Howard, & Cutler; The study leads gratefully acknowledge the outstanding support of Michele Judd, KISS Executive Director, and her dedicated staff, who made the study experience invigorating and enormously productive
Effects of axions on Nucleosynthesis in massive stars
Creators: name: Aoyama, Shohei
name: Suzuki, Takeru K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the effect of the axion cooling on the nucleosynthesis in a massive star with $16M_{\odot}$ by standard stellar evolution calculation. We find that the axion cooling suppresses the nuclear reactions in carbon, oxygen and silicon burning phases because of the extraction of the energy. As a result, larger amounts of the already synthesized neon and magnesium remain without being consumed to produce further heavier elements. Even in the case with the axion-photon coupling constant $g_{aγ}= 10^{-11}$ GeV$^{-1}$, which is six times smaller than the current upper limit, the amount of neon and magnesium that remain just before the core-collapse supernova explosion is considerably larger than the standard value. This implies that we could give a more stringent constraint on $g_{aγ}$ from the nucleosynthesis of heavy elements in massive stars.
description: 5 pages, 5 figures, submitted to Physical Review D
Documentação dos bens integrados em ferro forjado e fundido de fachadas dos séculos XIX e XX: Guarda-corpos, óculos e bandeiras no bairro de Batista Campos em Belém/PA
Creators: name: Ribeiro Silva, Rodrigo
name: Olegário Palácios, Flávia
name: Montalvão Fraiha, Suzete
Publisher: name: Zenodo
Year: 2024

description: Este estudo investiga o uso do ferro e suas ligas na arquitetura, destacando sua relevância desde a Revolução Industrial, quando passou a ser um material essencial em diversos elementos arquitetônicos. No período do Ciclo da Borracha em Belém (1897-1912), sob a gestão de Antônio Lemos, houve uma expressiva importação de ferro, promovendo o embelezamento das fachadas urbanas. A produção local de bens integrados também se destacou, com ênfase no Instituto Lauro Sodré. O objetivo desta pesquisa é documentar os elementos de ferro forjado e fundido presentes nas fachadas de edifícios dos séculos XIX e XX, visando à sua restauração e preservação, uma vez que vêm se deteriorando devido ao intemperismo e à ação humana. A pesquisa focou-se na documentação de guarda-corpos, óculos e bandeiras em edificações dos bairros de Batista Campos, Umarizal e São Brás, em Belém (PA). A metodologia incluiu levantamento histórico, análise físico-cadastral e registros fotográficos. A dissertação de Fraiha (2022), que analisou a preservação de guarda-corpos em ferro no centro histórico de Belém, serviu como base para o estudo. Foram mapeadas 101 edificações, sendo 62 em Batista Campos, 21 em Umarizal e 18 em São Brás. As fachadas apresentavam ornamentos como guarda-corpos, portões e bandeiras, predominando o estilo Art Nouveau, com formas sinuosas e orgânicas, refletindo a produção local e as influências ecléticas da época. Conclusões: A maioria dos imóveis está em bom estado de conservação, com usos residenciais e comerciais. Verificou-se uma redução de ornamentos conforme o afastamento do centro, sugerindo uma menor proteção desses bens.
Documentação Dos Bens Integrados Em Ferro Forjado E Fundido De Fachadas Dos Séculos XIX E XX: Guarda-Corpos, Óculos E Bandeiras No Bairro De Batista Campos Em Belém (PA)
Creators: name: Rodrigo Ribeiro Silva
name: Flávia Olegário Palácios
name: Suzete Montalvão Fraiha
Publisher: name: Zenodo
Year: 2024

description: Este estudo investiga o uso do ferro e suas ligas na arquitetura, destacando sua relevância desde a Revolução Industrial, quando passou a ser um material essencial em diversos elementos arquitetônicos. No período do Ciclo da Borracha em Belém (1897-1912), sob a gestão de Antônio Lemos, houve uma expressiva importação de ferro, promovendo o embelezamento das fachadas urbanas. A produção local de bens integrados também se destacou, com ênfase no Instituto Lauro Sodré. O objetivo desta pesquisa é documentar os elementos de ferro forjado e fundido presentes nas fachadas de edifícios dos séculos XIX e XX, visando à sua restauração e preservação, uma vez que vêm se deteriorando devido ao intemperismo e à ação humana. A pesquisa focou-se na documentação de guarda-corpos, óculos e bandeiras em edificações dos bairros de Batista Campos, Umarizal e São Brás, em Belém (PA). A metodologia incluiu levantamento histórico, análise físico-cadastral e registros fotográficos. A dissertação de Fraiha (2022), que analisou a preservação de guarda-corpos em ferro no centro histórico de Belém, serviu como base para o estudo. Foram mapeadas 101 edificações, sendo 62 em Batista Campos, 21 em Umarizal e 18 em São Brás. As fachadas apresentavam ornamentos como guarda-corpos, portões e bandeiras, predominando o estilo Art Nouveau, com formas sinuosas e orgânicas, refletindo a produção local e as influências ecléticas da época. Conclusões: A maioria dos imóveis está em bom estado de conservação, com usos residenciais e comerciais. Verificou-se uma redução de ornamentos conforme o afastamento do centro, sugerindo uma menor proteção desses bens.
Quantum Mechanical Formulation of the Busch Theorem
Creators: name: Floettmann, Klaus
name: Karlovets, Dmitry
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: Electron vortex beams offer unique opportunities for the study of chiral or magnetic structures in electron microscopes and of fundamental effects of quantum interference in particle physics. Immersing a cathode in a solenoid field presents a highly efficient and flexible method for the generation of vortex electron beams which is utilized at accelerators, but has not yet been realized in an electron microscope. The conditions for the generation of vortex beams with quantized orbital angular momentum from an immersed cathode in an electron microscope are discussed, and general possibilities of this technique for the production of vortex beams of other charged particles are pointed out.
Quantum black holes as classical space factories
Creators: name: Iorio, Alfredo
name: Smaldone, Luca
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Space and matter may both be manifestations of a single fundamental quantum dynamics, as it may become evident during black-hole evaporation. Inspired by the fact that quantum electrodynamics underlies the classical theory of elasticity, that in turn has a natural and well-known geometric description in terms of curvature and torsion, related to topological defects, here we move some necessary steps to find the map from such fundamental quantum level to the emergent level of classical space and quantum matter. We proceed by adapting the boson transformation method of standard quantum field theory to the quantum gravity fundamental scenario and successfully obtain the emergence of curvature and torsion, our main focus here. In doing so, we have been able to overcome difficult issues of interpretation, related to the Goldstone modes for rotational symmetry. In fact, we have been able to apply the boson transformation method to disclinations, to relate them to the spin structure and to give an heuristic derivation of the matter field equation on curved space. We also improve results of previous work on the emergence of geometric tensors from elasticity theory, as the non-Abelian contributions to the torsion and curvature tensors, postulated in those papers, here emerge naturally. More work is necessary to identify the type of gravity theories one can obtain in this way.
Hidden Glashow resonance in neutrino-nucleus collisions
Creators: name: Alikhanov, I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Today it is widely believed that $s$-channel excitation of an on-shell~$W$ boson, commonly known as the Glashow resonance, can be initiated in matter only by the electron antineutrino in the process $\barν_ee^-\rightarrow W^-$ at the laboratory energy around~6.3~PeV. In this paper we argue that the Glashow resonance within the Standard Model also occurs in neutrino--nucleus collisions. The main conclusions are as follows. 1)~The Glashow resonance can be excited by both~neutrinos and~antineutrinos of all the three flavors scattering in the Coulomb field of a nucleus. 2)~The Glashow resonance in a neutrino--nucleus reaction does not manifest itself as a Breit--Wigner-like peak in the cross section but the latter exhibits instead a slow logarithmic-law growth with the neutrino energy. The resonance turns thus out to be hidden. 3)~More than~$98\%$ of~$W$ bosons produced in the sub-PeV region in neutrino-initiated reactions in water/ice will be from the Glashow resonance. 4)~The vast majority of the Glashow resonance events in a neutrino detector is expected at energies from a few TeV to a few tens of TeV, being mostly initiated by the conventional atmospheric neutrinos dominant in this energy range. Calculations of the cross sections for Glashow resonance excitation on the oxygen nucleus as well as on the proton are carried out in detail. The results of this paper can be useful for studies of neutrino interactions at large volume water/ice neutrino detectors. For example, in the IceCube detector one can expect~0.3 Glashow resonance events with shower-like topologies and the deposited energies above~$300~\text{TeV}$ per year. It is therefore likely already to have at least one Glashow resonance event in the IceCube data set.
description: 32 pages, 8 figures. Version accepted for publication in PLB
Revisión teórica del enfoque por competencias y su aplicación en la Universidad Boliviana
Creators: name: Pérez Arce, Christian Nelio
Publisher: name: figshare
Year: 2022
Subjects: subject: 130303 Education Assessment and Evaluation
subject: FOS: Educational sciences

description: This article describes the main theoretical elements of the competency approach, determining its polysemic characteristics and the multiplicity of interpretations that come together in a complex of abilities, abilities and skills to solve problems and adapt to different circumstances and contexts, focusing on the comprehensive learning of students for an efficient work performance that responds to social needs and personal self-realization of them. The advantages of the competency-based approach have determined that the Bolivian University takes this approach integrating it to its educational processes, in a progressive manner, laying the foundations for the development of learning models in the university system.
Untitled Item
Creators: name: Pérez Arce, Christian Nelio
Publisher: name: figshare
Year: 2022
Subjects: subject: 130303 Education Assessment and Evaluation
subject: FOS: Educational sciences

description: This article describes the main theoretical elements of the competency approach, determining its polysemic characteristics and the multiplicity of interpretations that come together in a complex of abilities, abilities and skills to solve problems and adapt to different circumstances and contexts, focusing on the comprehensive learning of students for an efficient work performance that responds to social needs and personal self-realization of them. The advantages of the competency-based approach have determined that the Bolivian University takes this approach integrating it to its educational processes, in a progressive manner, laying the foundations for the development of learning models in the university system.
Using Heavy Clique Base Coarsening to Enhance Virtual Network Embedding
Creators: name: Shahin, Ashraf A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Network virtualization allows cloud infrastructure providers to accommodate multiple virtual networks on a single physical network. However, mapping multiple virtual network resources to physical network components, called virtual network embedding (VNE), is known to be non-deterministic polynomial-time hard (NP-hard). Effective virtual network embedding increases the revenue by increasing the number of accepted virtual networks. In this paper, we propose virtual network embedding algorithm, which improves virtual network embedding by coarsening virtual networks. Heavy Clique matching technique is used to coarsen virtual networks. Then, the coarsened virtual networks are enhanced by using a refined Kernighan-Lin algorithm. The performance of the proposed algorithm is evaluated and compared with existing algorithms using extensive simulations, which show that the proposed algorithm improves virtual network embedding by increasing the acceptance ratio and the revenue.
description: (IJACSA) International Journal of Advanced Computer Science and Applications, Vol. 6, No. 1, 2015
Semantic Search Engines - Grundlagen (RDF, OWL, Reasoning) und Anwendungen
Creators: name: Schirrwagen, Jochen
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2010

description: Klassische Suchverfahren, basierend auf Indexierung von Inhalten und - insbesondere im bibliothekarischen Umfeld - strukturierten Metadateninformationen, sind grundlegend für (wissenschaftliche) Internetsuchmaschinen.Jedoch sind die Suchresultate in aller Regel mit Informationen überladen, die nicht immer im Kontext der gewünschten Suchintention stehen. Sucheingrenzungen bzw. die Navigation in Suchergebnissen ist mitunter aufwendig und fehleranfällig.Durch Erweiterung des Suchprozesses um semantische Verfahren und Informationen wird eine qualitative Verbesserung der Suchanfragen und -ergebnisse angestrebt.Semantische Suchsysteme sind Gegenstand aktueller Forschungsthemen, dieInformations-Extraktion, -Verarbeitung, -Speicherung, -Gewinnung, aber auch Anfrage-Formulierungen und die Darstellung von semantischen Beziehungen umfassen.Ausgehend von Grundlagen des Semantic Web werden exemplarische Semantische Suchsysteme vorgestellt und verglichen.
description: Kolloquium Wissensinfrastruktur, Wintersemester 2009/2010
Arrenurus (Megaluracarus) rostratus Daday 1898
Creators: name: SAVATENALINTON, SUKONTHIP
name: SMIT, HARRY
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Arrenuridae
Arrenurus
Arrenurus rostratus

description: Arrenurus (Megaluracarus) rostratus Daday, 1898
Material examined. 3/2/0, Pond between Kaeng Krachan and Tha Yang, Phetchaburi Province, 12° 56.131ʹ N, 99° 48.543ʹ E, alt. 11 m a.s.l., 30-xi-2007, leg H. Smit; 1/0/0, rice field, Ubon Ratchathani Province, 15° 32.347ʹ N, 104° 26.052ʹ E, 24-x-2010; 0/1/0, swamp Kaeng Leang Chan, Maha Sarakham Province, 16° 11.469ʹ N, 103° 12.413ʹ E, 2-xi-2016; 1/1/0, Lam Sam Lai Reservoir, Nakhon Ratchasima Province, 31-x-2010; 0/1/0, Roadside pond, Sisaket Province, 15° 05.462ʹ N, 104° 19.832ʹ E, 9-ii-2011.
Remarks. Arrenurus rostratus is widespread species in the Oriental region. Furthermore, a subspecies is reported from northern Australia (K.O. Viets 1984). It is new for the fauna of Thailand.
description: Published as part of SAVATENALINTON, SUKONTHIP & SMIT, HARRY, 2017, New records of water mites from standing waters in Thailand, with the description of nine new species (Acari: Hydrachnidia), pp. 69-91 in Zootaxa 4312 (1) on page 88, DOI: 10.11646/zootaxa.4312.1.3, http://zenodo.org/record/852086
Using Exploratory Scenarios in Planning Practice: A Spectrum of Approaches
Creators: name: Avin, Uri
name: Goodspeed, Robert
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Problem, research strategy, and findings: Despite growing interest by practitioners in using exploratory scenarios within urban planning practice, there are few detailed guidelines for how to do this. Through the discussion of five case examples, we illustrate different approaches to linking exploratory scenarios to different planning contexts. We conclude by observing that to directly inform a plan, regardless of the specific approach taken, exploratory scenarios in urban planning must incorporate stakeholder values and not only rely on expert judgment and analysis. Takeaway for practice: Exploratory scenarios are effective for analyzing uncertainty within a planning process. However, exploratory scenarios can be incorporated into planning practice in different ways, ranging from workshops among experts that aim to cultivate general learning to complex projects that result in highly detailed scenarios and recommendations for plans. Practitioners can draw on the cases we present to inspire planning methods for particular projects, taking into account specific contexts and goals.
Option Pricing Beyond Black-Scholes Based on Double-Fractional Diffusion
Creators: name: Kleinert, Hagen
name: Korbel, Jan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business

description: We show how the prices of options can be determined with the help of double-fractional differential equation in such a way that their inclusion in a portfolio of stocks provides a more reliable hedge against dramatic price drops that the use of options whose prices were fixed by the Black-Scholes formula.
description: 16 pages, 5 figures
The $L^2$-Alexander torsion is symmetric
Creators: name: Dubois, Jérôme
name: Friedl, Stefan
name: Lück, Wolfgang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We show that the $L^2$-Alexander torsion of a 3-manifold is symmetric. This can be viewed as a generalization of the symmetry of the Alexander polynomial of a knot.
description: 14 pages. arXiv admin note: text overlap with arXiv:1107.3002
THE DYNAMIC CHARACTERIZATION OF IMPACT-MITIGATING MATERIALS USING ELECTROMAGNETIC VELOCITY GAUGES
Creators: name: Wiles, Garrett Scott
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: subject: Mechanical engineering
subject: FOS: Mechanical engineering
subject: Materials Science
subject: Engineering
subject: dynamic characterization
subject: frequency domain characterization
subject: generalized Maxwell model
subject: Split-Hopkinson pressure bar
subject: velocity gauges
subject: viscoelastic

description: The use of certain polymers is actively being examined as means to passively reduce the damaging effects of impact loading. With uncertainty of the dynamic environments in which these materials achieve optimal performance, a further investigation is necessary to analyze the dynamic behavior of the viscoelastic material as loading rate varies. This study was conducted using a polymeric Split-Hopkinson pressure bar while using electromagnetic velocity gauges for measuring stress-strain data to obtain material characteristics of the test specimens. Frequency domain characteristics were obtained by fitting a rheological model to test data. Strain-rates observed during the study were on the order of 10^3 1/s. A polymeric Split-Hopkinson pressure bar was used instead of a conventional elastic bar to reduce the impedance mismatch with the test specimens. Electromagnetic velocity gauges were employed to justifiably neglect the dispersion and attenuation effects that accompany the use of viscoelastic bars.
Infrastruktur für elektronische Zeitschriften
Creators: name: Riedel, Susanne
name: Wolf, Sebastian
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2010

description: Das Serviceangebot der UB, das unter der Sammelbezeichnung "Publikationsdienste" läuft, umfasst aktuell neben den Repositories BieColl, BieSOn und BiPrints u.a. auch die technische und organisatorische Unterstützung bei der Herausgabe von e-Journals. In der Veranstaltung werden die Dienstleistungen der Bibliothek anhand des erfolgreichen Pilotprojekts "Zeitschrift für Soziologie (ZfS)" dargestellt.
description: Kolloquium Wissensinfrastruktur, Wintersemester 2009/2010
Qutrit Magic State Distillation Tight in Some Directions
Creators: name: Dawkins, Hillary
name: Howard, Mark
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Magic state distillation is a crucial component in the leading approaches to implementing universal fault tolerant quantum computation, with existing protocols for both qubit and higher dimensional systems. Early work focused on determining the region of distillable states for qubit protocols, yet comparatively little is known about which states can be distilled and with what distillable region for d>2. Here we focus on d=3 and present new four-qutrit distillation schemes that improve upon the known distillable region, and achieve distillation tight to the boundary of undistillable states for some classes of state. As a consequence of recent results, this implies that there is a family of quantum states that enable universality if and only if they exhibit contextuality with respect to stabilizer measurements. We also identify a new routine whose fixed point is a magic state with maximal sum-negativity i.e., it is maximally non-stabilizer in a specific sense.
description: removed erroneous paragraph on Clifford corrections
Standard logarithmic mean velocity distribution in a band-limited restricted nonlinear model of turbulent flow in a half-channel
Creators: name: Bretheim, Joel. U.
name: Meneveau, Charles
name: Gayme, Dennice F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Numerical simulations of wall-turbulence using the restricted nonlinear (RNL) model generate realistic mean velocity profiles in plane Couette and channel flow at low Reynolds numbers. The results are less accurate at higher Re, and while a logarithmic region is observed, its von-Kármán constant is not consistent with the standard logarithmic law. In half-channel flow we show that limiting the streamwise-varying wavenumber support of RNL turbulence to one or few empirically determined modes improves its predictions considerably. In particular, the mean velocity profiles obtained with the band-limited RNL model follow standard logarithmic behavior for the higher Reynolds numbers in this study.
description: 7 pages, 5 figures
VCIOM-SPUTNIK Poll: August 2020
Creators: name: VCIOM (Russian Public Opinion Research Center)
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: President of Russia approval (1); Prime Minister approval (1); State Duma of Russia (2); political party preference (2); mass protests (2); Internet usage (1); watch TV (1); trade unions (1); judicial system (1); Russian Orthodox church (1); personal financial situation (2); employment (2); sources of income (1); most important problems (5); rise in prices, inflation (2); Russian ruble and US dollar exchange rate fluctuations (3); unemployment (2); take out loans (2); spend or save money (1); savings (1); economic policy (1); social policy (1); foreign policy (1); direction of country (1); life satisfaction (2).
On the distribution of a cotangent sum
Creators: name: Bettin, Sandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11L03 (primary), 11M06, 11A55, 11M41 (secondary)

description: Maier and Rassias computed the moments and proved a distribution result for the cotangent sum $c_0(a/q):=-\sum_{m
description: 10 pages, 2 figures
A MODEL TO PREDICT THE SIZE OF 3D REGOLITH CLUMPS ON PLANETARY BODIES
Creators: name: Patel, Anand Vijaykumar
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: subject: Aerospace engineering
subject: Asteroid
subject: Clump
subject: Dust
subject: Planet
subject: Regolith
subject: Space

description: Prior investigations of the behavior of regolith on the surface of planetary bodies has considered the motion and interactions of individual grains. Recent work has shown the significance of cohesion in understanding the behavior of planetary regolith, especially on small, airless bodies. Surficial regolith grains may detach from a planetary body due to a variety of phenomena, including aeolian effects, spacecraft operations, micrometeoroid bombardment and electrostatic lofting. It is well known in terrestrial powder handling that cohesive powders tend to form clumps. We present an analytical theory for the size of regolith clumps that are likely to form and be easier to detach from a surface than their constituent grains, assuming monodisperse, spherical grains. The model predictions are significant for our interpretation of the surface of asteroids, as well as understanding a variety of phenomena on planetary bodies and designing of sampling spacecraft.
Design for Just-In-Time: Resource Design for Self-Teaching Computer Science and Online Learning
Creators: name: Lindeman, Carrie Lucille
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: subject: Information technology
subject: Education
subject: Instructional design
subject: computer science
subject: design
subject: educational resources
subject: just-in-time
subject: novice coder
subject: stack overflow

description: The goal of this study is to investigate how just-in-time resources may support self-teaching for adult computer science learners who are new to coding. For people learning computer science on their own, just-in-time resources can be essential for solving problems. A popular online resource that computer scientists of all experience levels rely on is Stack Overflow, a forum that has a question and answer format. Resources like Stack Overflow can help new programmers problem-solve their code without consulting a teacher or professor. However, these resources may be creating barriers in the learning experience that should prepare them for future computer science education. By observing learners using just-in-time resources and interviewing learners about their habits, this thesis provides guidance on potential design suggestions for better supporting users’ future learning. Understanding how just-in-time materials currently support self-teaching for adult novice computer science learners will provide the foundation for these designs.