cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Federally Overlooked Flood Risk Inequities in Houston, Texas: Novel Insights Based on Dasymetric Mapping and State-of-the-Art Flood Modeling
Creators: name: Flores, Aaron B.
name: Collins, Timothy W.
name: Grineski, Sara E.
name: Amodeo, Mike
name: Porter, Jeremy R.
name: Sampson, Christopher C.
name: Wing, Oliver
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: Plant Biology

description: In the United States, the Federal Emergency Management Agency (FEMA) delineates 100-year flood zones to define risks, regulate flood insurance premiums, and inform flood management. Evidence indicates that FEMA flood maps are incomplete, calling much of our current knowledge of U.S. flood hazard inequities into question. We use a state-of-the-art flood hazard model and census tract-level dasymetrically mapped sociodemographic data to examine flood risk inequities in the Greater Houston area, where increasingly frequent and damaging flood events are occurring. We innovate by analyzing federally overlooked 100-year flood risks (100-year flood zones delineated by the flood hazard model that are outside of FEMA 100-year flood zones). Results indicate that nearly 1 million Greater Houston residents live in federally overlooked 100-year flood zones. Black and Asian neighborhoods experience disproportionate risk in federally overlooked pluvial and fluvial flood zones, and Hispanic neighborhoods experience disproportionate risk in all federally overlooked zones (coastal, pluvial, and fluvial). High flood risk and the relative lack of protective resources in federally overlooked 100-year flood zones doubly jeopardizes racial and ethnic minority communities. Our findings and recent flood disasters suggest that future flood impacts in Greater Houston will be catastrophic and unjust unless FEMA revises their risk mapping and management approach to promote long-term public safety and social equity.
Evaluación de los hábitos de utilización de antibióticos en pacientes pediátricos que ingresan a procedimientos quirúrgicos ambulatorios en la IPS Quiruservis EU en la ciudad de Cartagena en el periodo comprendido entre noviembre del 2007 y enero de 2008
Creators: name: Gómez Muñoz, Ricardo Antonio
name: Payares Payares, Douglas De Jesús
Publisher: name: Universidad de Cartagena
Year: 2008
Subjects: Metabolitos microbianos - Análisis
Antibióticos en pediatría
Niños - Efecto de los antibióticos

description: Tesis (Químico Farmacéutico).-- Universidad de Cartagena. Facultad de Ciencias Farmacéuticas, 2008
description: Dentro de esta investigación, se busca evaluar los hábitos de utilización de antibióticos en pacientes pediátricos que ingresaron a procedimientos quirúrgicos ambulatorios en la IPS QUIRUSERVIS EU en la ciudad de Cartagena
Survey on Nonlocal Games and Operator Space Theory
Creators: name: Palazuelos, Carlos
name: Vidick, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This review article is concerned with a recently uncovered connection between operator spaces, a noncommutative extension of Banach spaces, and quantum nonlocality, a striking phenomenon which underlies many of the applications of quantum mechanics to information theory, cryptography and algorithms. Using the framework of nonlocal games, we relate measures of the nonlocality of quantum mechanics to certain norms in the Banach and operator space categories. We survey recent results that exploit this connection to derive large violations of Bell inequalities, study the complexity of the classical and quantum values of games and their relation to Grothendieck inequalities, and quantify the nonlocality of different classes of entangled states.
description: 48 pages, comments welcome
Unterrichtsvignetten zu computergestützten Lernumgebungen im Fach Mathematik
Creators: name: Ollesch, Julia
name: Vogel, Markus
name: Dörfler, Tobias
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Mit Hilfe des Computers lassen sich mathematische Darstellungen erzeugen, die mit traditionellen Medien nicht hergestellt werden können. Wenn sich die Forderung nach einem computergestützten Mathematikunterricht in den verschiedenen Curricula wiederfindet, lässt sich darin die implizite Annahme eines unterrichtlichen Mehrwerts nachzeichnen. Ein solcher Mehrwert ist jedoch nicht genuin gegeben, sondern (unter anderen Faktoren) wesentlich von der Kompetenz der Lehrkraft abhängig, den Computer im Mathematikunterricht gewinnbringend einzusetzen. Über den Einsatz von computerbasierten Unterrichtsvignetten soll erforscht werden, welche Facetten von Lehrerkompetenz sich hierzu als maßgeblich erweisen.
Wahrnehmung von Schülerfehlern unter Zeitdruck als Aspekt von professioneller Kompetenz berufstätiger Mathematiklehrkräfte
Creators: name: Pankow, Lena
name: Kaiser, Gabriele
name: Busse, Andreas
name: Hoth, Jessica
name: Döhrmann, Martina
name: König, Johannes
name: Blömeke, Sigrid
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Schülerfehler sind typische im Unterricht auftretende Situationen, auf die LehrerInnen schnell und adäquat reagieren müssen. Bedeutsam für die konstruktive Verwendung der Fehler ist deren schnelles Erkennen. Die Expertiseforschung (Chi 2011) legt nahe, dass Expertenlehrkräfte Fehler schneller erkennen. Welche Wissensfacette dabei eine Rolle spielt, ist bisher noch nicht eindeutig geklärt. Die COACTIV-Studie legt nahe, dass mathematisches Wissen eine große Rolle bei der Fehlerkennung spielt (vgl. Krauss & Brunner 2011). Im Folgenden sollen die Fragen, wie sich schnelle Fehlererkennung messen lässt bzw. was unter diesem Konstrukt schnelle Fehlererkennung zu verstehen ist, beleuchtet werden, und zwar im Rahmen der Lehrerprofessionsstudie TEDS-FU (Teacher Education and Development Study - Follow Up).
Mathematische S(pr)achaufgaben – Eine Analyse möglicher sprachlicher Hürden bei der Erarbeitung von Textaufgaben
Creators: name: Papadopoulou, Pelagia
name: Jeuk, Stefan
name: Bescherer, Christine
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Im Rahmen des vom Mercator Institut geförderten Projekts wird untersucht, wie sich ein sprachsensibler Mathematikförderunterricht methodisch gestalten lässt, der sowohl sprachlich als auch fachlich fördert. Die Untersuchung soll Erkenntnisse über den Einsatz der Fördermaterialien und -konzepte in realem Förderunterricht liefern, um daraus Konsequenzen für den Regelunterricht abzuleiten. In diesem Beitrag werden erste Überlegungen einer Aufgabenanalyse vorgestellt.
Mathematikschulbücher – mehr als nur fachliche Inhalte
Creators: name: Postupa, Jennifer
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Grundrechenarten, Prozentrechnung, direkte Proportionalität usw. sind die Inhalte die man in einem Schulbuch für den Mathematikunterricht erwartet. Der Blick in ein beliebiges Schulbuch zeigt jedoch, dass mehr als nur fachliches, innermathematisches Wissen transportiert wird. So wird etwa innerhalb von Sachaufgaben Wissen über unterschiedliche Sachkontexte vermittelt oder es soll durch die Art der Aufgabenstellung eine bestimmte Haltung, bspw. zum Umgang mit Geld, erzeugt werden. Solche Aspekte in Schulbüchern, die nicht in direktem Zusammenhang mit einem bestimmten innermathematischen Inhalt stehen, werden im Folgenden als außermathematisch bezeichnet. Im Fokus des Dissertationsprojekts der Autorin steht die Veränderung solcher außermathematischen Aspekte in den vergangenen 70 Jahren. Mit einem eigens entwickelten Analyseinstrument sollen solche Aspekte messbar gemacht werden, um Aussagen zu deren Häufigkeit sowie zur Stärke der Veränderung treffen zu können. Im Folgenden wird die Funktionsweise des Analyseinstruments knapp angedeutet (für genauere Informationen vgl. Postupa 2014) und mögliche Fragestellungen sowie erste Trends vorgestellt.
Diseño sísmico de estructuras portuarias en Colombia
Creators: name: Romero Forero, Mauricio Hernando
name: Meza Velasquez, Juan Carlos
Publisher: name: Universidad de Cartagena
Year: 2004
Subjects: Construcciones antisísmicas
Puertos - Construcción
Análisis sísmicos

description: Tesis (Especialista en estructuras)--Universidad de Cartagena. Facultad de Ciencias e Ingenierías, 2004
description: El presente estudio tiene por objeto identificar las limitaciones presentes en el diseño sísmico convencional que no cubre a las estructuras portuarias y establecer los lineamientos para una metodología de diseño de estructuras portuarias para Colombia.
Sprachsensibler Umgang mit Textmustern im Mathematikunterricht am Beispiel von Konstruktionsbeschreibungen
Creators: name: Rezat, Sebastian
name: Rezat, Sara
name: Janzen, Sabrina
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Arbeiten zu sprachlichen Aspekten des Mathematiklernens fokussieren bislang im Wesentlichen die Wort- und Satzebene. Über sprachliche Aspekte des Mathematiklernens auf der Textebene gibt es bislang wenig gesicherte Erkenntnisse. Im Hinblick auf sprachliche Aspekte des Mathematiklernens auf der Textebene ist zunächst die Frage zu stellen, wodurch mathematische Texte gekennzeichnet sind und inwiefern mathematische Texte überhaupt spezifische Textmuster sind. Erkenntnisse zu diesen Fragen sind Voraussetzung für eine Auseinandersetzung mit mathematischen Textmustern innerhalb der Fachdidaktik und des Fachunterrichts und wesentlich für die Frage, was sprachsensibler Mathematikunterricht in Bezug auf die Textebene bedeutet. Am Beispiel von Konstruktionsbeschreibungen versucht dieser Beitrag erste Antworten auf diese Fragen zu geben.
Using the knowledge of penumbra with a trick simulation
Creators: name: Bülbül, Mustafa Şahin
name: Wee, Loo Kang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The study is about a basic shadow experiment, which was enriched with a simulation to understand the reasoning of participants when we use a trick. Two light sources create an umbra and penumbra behind the objects. With this experiment, we asked what would happen when the penumbras interact. Most of the participants predicted the correct solution, that there should be an umbra. Some of the participants choose wrong alternative, and explained in terms of the structure of penumbra.
description: 3 pages, 3 figures, Latin-American Journal of Physics Education, ISSN 1870-9095
Bringing together scientific disciplines for collaborative undertakings: a vision for advancing the adverse outcome pathway framework
Creators: name: Chauhan, Vinita
name: Wilkins, Ruth C.
name: Beaton, Danielle
name: Sachana, Magdalini
name: Delrue, Nathalie
name: Yauk, Carole
name: O’Brien, Jason
name: Marchetti, Francesco
name: Halappanavar, Sabina
name: Boyd, Michael
name: Villeneuve, Daniel
name: Barton-Maclaren, Tara S.
name: Meek, Bette
name: Anghel, Catalina
name: Heghes, Crina
name: Barber, Chris
name: Perkins, Edward
name: Leblanc, Julie
name: Burtt, Julie
name: Laakso, Holly
name: Laurier, Dominique
name: Lazo, Ted
name: Whelan, Maurice
name: Thomas, Russell
name: Cool, Donald
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Decades of research to understand the impacts of various types of environmental occupational and medical stressors on human health have produced a vast amount of data across many scientific disciplines. Organizing these data in a meaningful way to support risk assessment has been a significant challenge. To address this and other challenges in modernizing chemical health risk assessment, the Organisation for Economic Cooperation and Development (OECD) formalized the adverse outcome pathway (AOP) framework, an approach to consolidate knowledge into measurable key events (KEs) at various levels of biological organisation causally linked to disease based on the weight of scientific evidence (http://oe.cd/aops). Currently, AOPs have been considered predominantly in chemical safety but are relevant to radiation. In this context, the Nuclear Energy Agency’s (NEA’s) High-Level Group on Low Dose Research (HLG-LDR) is working to improve research co-ordination, including radiological research with chemical research, identify synergies between the fields and to avoid duplication of efforts and resource investments. To this end, a virtual workshop was held on 7 and 8 October 2020 with experts from the OECD AOP Programme together with the radiation and chemical research/regulation communities. The workshop was a coordinated effort of Health Canada, the Electric Power Research Institute (EPRI), and the Nuclear Energy Agency (NEA). The AOP approach was discussed including key issues to fully embrace its value and catalyze implementation in areas of radiation risk assessment. A joint chemical and radiological expert group was proposed as a means to encourage cooperation between risk assessors and an initial vision was discussed on a path forward. A global survey was suggested as a way to identify priority health outcomes of regulatory interest for AOP development. Multidisciplinary teams are needed to address the challenge of producing the appropriate data for risk assessments. Data management and machine learning tools were highlighted as a way to progress from weight of evidence to computational causal inference.
Thermodynamics of amyloid formation and the role of intersheet interactions
Creators: name: Irbäck, Anders
name: Wessén, Jonas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The self-assembly of proteins into $β$-sheet-rich amyloid fibrils has been observed to occur with sigmoidal kinetics, indicating that the system initially is trapped in a metastable state. Here, we use a minimal lattice-based model to explore the thermodynamic forces driving amyloid formation in a finite canonical ($NVT$) system. By means of generalized-ensemble Monte Carlo techniques and a semi-analytical method, the thermodynamic properties of this model are investigated for different sets of intersheet interaction parameters. When the interactions support lateral growth into multi-layered fibrillar structures, an evaporation/condensation transition is observed, between a supersaturated solution state and a thermodynamically distinct state where small and large fibril-like species exist in equilibrium. Intermediate-size aggregates are statistically suppressed. These properties do not hold if aggregate growth is one-dimensional.
description: 22 pages
Campodea (Campodea) basiliensis Wygodzinsky 1941
Creators: name: Sendra, Alberto
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplura
Campodeidae
Campodea
Campodea basiliensis

description: Campodea (Campodea) basiliensis Wygodzinsky, 1941
Campodea (Campodea) basiliensis Wygodzinsky, 1941a: 127, figs 34–39.
Diagnosis (Wygodzinsky 1941a; Condé & Mathieu 1957)
Body length 2.5 mm; short, smooth clothing setae; antennae with 19–24 antennomeres; sensillum of third antennomere in dorsal position; thin, middle-sized barbed notal macrosetae; lp metanotal much shorter than lp mesonotal; short with apical long barbs notal marginal setae; 1+1 ma macrosetae on I– VII urotergites, 1+1 la on V, 1+1 la, 1+1 lp on VI–VII urotergites, 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment; cerci shorter than body with 10–11 articles covered in long macrosetae with barbs and a few clothing setae, but with swollen latero-interior macrosetae in proximal articles.
Habitat and distribution
Soil-dwelling species found scattered from the Basin of Paris to the French Pyrenees (Condé 1947d, 1947h, 1951a; Condé & Mathieu 1957), as well as in eastern Germany and the Swiss Alps (Wygodzinsky 1941a; Christian 2003).
description: Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on page 29, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/4316883
Tackling diabetes through lifestyle changes
Creators: name: Research, Nature
Publisher: name: Manara - Qatar Research Repository
Year: 2023
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 3201
subject: Cardiovascular medicine and haematology

description: The high incidence of type II diabetes in Qatar is largely due to demographic and lifestyle factors and could therefore be substantially reduced with appropriate interventions, according to a new collaborative study by research teams in Doha and New York . Type II diabetes mellitus (DM) is a lifelong condition that causes dangerously high blood sugar levels. It is a leading cause of disability and death throughout the world, but risk factors for the condition in the Qatari population are poorly understood. In the first study of its kind conducted in Qatar, Paul J. Christos of Weill Cornell Medical College in New York and his colleagues collected medical data from 459 patients diagnosed with diabetes and 342 control patients, in order to assess DM risk factors. All of the study participants had been admitted to outpatient clinics and inpatient departments at the Hamad Medical Corporation in Doha between 2006 and 2008. Their results showed that being a Qatari national is associated with an approximately fivefold increase in risk for DM compared to the rest of the Qatar resident population. Being male and obese also increased risk for DM, as did having a higher monthly income, lower level of educational attainment, and lower levels of physical activity. Diabetes is rapidly growing in the developing world, with about 80% of all cases occurring there now. The results are consistent with recent findings showing that the incidence of diabetes is particularly high in North Africa and the Middle East with 11% of 20- to 79-year-olds in the region having the condition. Qatar has one of the highest prevalence in the world, about threefold the global average. Although there are some genetic factors, this is attributed largely to rapid economic growth and the increased adoption of Western lifestyle habits, especially an increased intake of calorie-rich foods and physical inactivity. The study demonstrates that these factors outweigh genetic risk factors for diabetes, and thus emphasise the need to focus on short-term interventions to address them. Such interventions, if effective, could substantially reduce DM levels in Qatar. “As a first step, the Qatari government should conduct nationally-representative large-scale community-based surveys at the household level to investigate barriers to the engagement of a healthier lifestyle, such as the reasons for physical inactivity and higher rates of obesity,” says Christos. “Such data could help to justify the need for specific intervention programmes that could help to achieve substantial reductions in DM levels in the population of Qatar.”Other InformationPublished in: QScience.com Highlights, Published by Nature Research for Hamad bin Khalifa University Press (HBKU Press)
License: http://creativecommons.org/licenses/by/4.0
Major Substructure in the M31 Outer Halo: Distances and Metallicities along the Giant Stellar Stream
Creators: name: Conn, Anthony R.
name: McMonigal, Brendan
name: Bate, Nicholas F.
name: Lewis, Geraint F.
name: Ibata, Rodrigo A.
name: Martin, Nicolas F.
name: McConnachie, Alan W.
name: Ferguson, Annette M. N.
name: Irwin, Michael J.
name: Elahi, Pascal J.
name: Venn, Kimberly A.
name: Mackey, A. Dougal
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a renewed look at M31's Giant Stellar Stream along with the nearby structures Stream C and Stream D, exploiting a new algorithm capable of fitting to the red giant branch (RGB) of a structure in both colour and magnitude space. Using this algorithm, we are able to generate probability distributions in distance, metallicity and RGB width for a series of subfields spanning these structures. Specifically, we confirm a distance gradient of approximately 20 kpc per degree along a 6 degree extension of the Giant Stellar Stream, with the farthest subfields from M31 lying ~ 120 kpc more distant than the inner-most subfields. Further, we find a metallicity that steadily increases from -0.7^{+0.1}_{-0.1} dex to -0.2^{+0.2}_{-0.1} dex along the inner half of the stream before steadily dropping to a value of -1.0^{+0.2}_{-0.2} dex at the farthest reaches of our coverage. The RGB width is found to increase rapidly from 0.4^{+0.1}_{-0.1} dex to 1.1^{+0.2}_{-0.1} dex in the inner portion of the stream before plateauing and decreasing marginally in the outer subfields of the stream. In addition, we estimate Stream C to lie at a distance between 794 and 862 kpc and Stream D between 758 kpc and 868 kpc. We estimate the median metallicity of Stream C to lie in the range -0.7 to -1.6 dex and a metallicity of -1.1^{+0.3}_{-0.2} dex for Stream D. RGB widths for the two structures are estimated to lie in the range 0.4 to 1.2 dex and 0.3 to 0.7 dex respectively. In total, measurements are obtained for 19 subfields along the Giant Stellar Stream, 4 along Stream C, 5 along Stream D and 3 general M31 spheroid fields for comparison. We thus provide a higher resolution coverage of the structures in these parameters than has previously been available in the literature.
description: Accepted for publication in the Monthly Notices of the Royal Astronomical Society (accepted 29 Feb 2016). 18 pages, 7 figures, 2 tables
Learning for Counterfactual Fairness from Observational Data
Creators: name: Ma, Jing
name: Guo, Ruocheng
name: Zhang, Aidong
name: Li, Jundong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computers and Society (cs.CY)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Fairness-aware machine learning has attracted a surge of attention in many domains, such as online advertising, personalized recommendation, and social media analysis in web applications. Fairness-aware machine learning aims to eliminate biases of learning models against certain subgroups described by certain protected (sensitive) attributes such as race, gender, and age. Among many existing fairness notions, counterfactual fairness is a popular notion defined from a causal perspective. It measures the fairness of a predictor by comparing the prediction of each individual in the original world and that in the counterfactual worlds in which the value of the sensitive attribute is modified. A prerequisite for existing methods to achieve counterfactual fairness is the prior human knowledge of the causal model for the data. However, in real-world scenarios, the underlying causal model is often unknown, and acquiring such human knowledge could be very difficult. In these scenarios, it is risky to directly trust the causal models obtained from information sources with unknown reliability and even causal discovery methods, as incorrect causal models can consequently bring biases to the predictor and lead to unfair predictions. In this work, we address the problem of counterfactually fair prediction from observational data without given causal models by proposing a novel framework CLAIRE. Specifically, under certain general assumptions, CLAIRE effectively mitigates the biases from the sensitive attribute with a representation learning framework based on counterfactual data augmentation and an invariant penalty. Experiments conducted on both synthetic and real-world datasets validate the superiority of CLAIRE in both counterfactual fairness and prediction performance.
Superhalogens as Building Blocks of Complex Hydrides for Hydrogen Storage
Creators: name: Srivastava, Ambrish Kumar
name: Misra, Neeraj
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Superhalogens are species whose electron affinity (EA) or vertical detachment energy (VDE) exceed to those of halogen. These species typically consist of a central electropositive atom with electronegative ligands. The EA or VDE of species can be further increased by using superhalogen as ligands, which are termed as hyperhalogen. Having established BH4- as a superhalogen, we have studied BH4-x(BH4)x- (x = 1 to 4) hyperhalogen anions and their Li-complexes, LiBH4-x(BH4)x using density functional theory. The VDE of these anions is larger than that of BH4-, which increases with the increase in the number of peripheral BH4 moieties (x). The hydrogen storage capacity of LiBH4-x(BH4)x complexes is higher but binding energy is smaller than that of LiBH4, a typical complex hydride. The linear correlation between dehydrogenation energy of LiBH4-x(BH4)x complexes and VDE of BH4-x(BH4)x- anions is established. These complexes are found to be thermodynamically stable against dissociation into LiBH4 and borane. This study not only demonstrates the role of superhalogen in designing new materials for hydrogen storage, but also motivates experimentalists to synthesize LiBH4-x(BH4)x (x = 1 to 4) complexes.
Bringing Together Scientific Disciplines for Collaborative Undertakings: A Vision for Advancing the Adverse Outcome Pathway Framework
Creators: name: Chauhan, Vinita
name: Wilkins, Ruth
name: Beaton, Danielle
name: Sachana, Magdalini
name: Delrue, Nathalie
name: Yauk, Carole
name: O’Brien, Jason
name: Marchetti, Francesco
name: Halappanavar, Sabina
name: Boyd, Mike
name: Villeneuve, Daniel
name: Barton-Maclaren, Tara S.
name: Meek, Bette
name: Anghel, Catalina
name: Heghes, Crina
name: Barber, Chris
name: Perkins, Edward
name: Leblanc, Julie
name: Burtt, Julie
name: Laakso, Holly
name: Laurier, Dominique
name: Lazo, Ted
name: Whelan, Maurice
name: Thomas, Russel
name: Cool, Donald
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Decades of research to understand the impacts of various types of environmental occupational and medical stressors on human health have produced a vast amount of data across many scientific disciplines. Organizing these data in a meaningful way to support risk assessment has been a significant challenge. To address this and other challenges in modernizing chemical health risk assessment, the Organisation for Economic Cooperation and Development (OECD) formalized the Adverse Outcome Pathway (AOP) framework, an approach to consolidate knowledge into measurable key events (KEs) at various levels of biological organization causally linked to disease based on the weight of scientific evidence (http://oe.cd/aops). Currently, AOPs have been considered predominantly in chemical safety but are relevant to radiation. In this context, the Nuclear Energy Agency’s (NEA’s) High-Level Group on Low Dose Research (HLG-LDR) is working to improve research co-ordination, including radiological research with chemical research, identify synergies between the fields and to avoid duplication of efforts and resource investments. To this end, a virtual workshop was held on October 7-8th, 2020 with experts from the OECD AOP Programme together with the radiation and chemical research/regulation communities. The workshop, was a coordinated effort of Health Canada, the Electric Power Research Institute (EPRI), and the Nuclear Energy Agency (NEA). The AOP approach was discussed including key issues to fully embrace its value and catalyze implementation in areas of radiation risk assessment. Conclusion: A joint chemical and radiological expert group was proposed as a means to encourage cooperation between risk assessors and an initial vision was discussed on a path forward. A global survey was suggested as a way to identify priority health outcomes of regulatory interest for AOP development. Multidisciplinary teams were needed to address the challenge of producing the appropriate data for risk assessments. Data management and machine learning tools were highlighted as a way to progress from weight of evidence to computational causal inference.
Kinder experimentieren mit Zahlen – Eine mathematische Tätigkeit unter der Lupe
Creators: name: Philipp, Kathleen
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Der Begriff des Experimentierens begegnet einem in ganz unterschiedlichen Kontexten. Häufig assoziiert man damit ein Hantieren mit Materialien oder Apparaturen. Was aber ist gemeint, wenn von Experimentieren in der Mathematik die Rede ist? Wie sieht diese mathematische Tätigkeit bei Lernenden aus? Und wie kann man im Mathematikunterricht experimentieren?
Contrato de aprendizaje
Creators: name: Hernández Sierra, Enrique J
Publisher: name: Universidad de Cartagena
Year: 1987
Subjects: Aprendizaje
Contratos - Aspectos jurídicos

description: Tesis (Abogado) -- Universidad de Cartagena. Facultad de Derecho y Ciencias Políticas. Programa de Derecho, 1987
description: Aprendizaje a la configuración práctico como contrato y diferentes posiciones doctrinarias sobre su definición y naturaleza jurídico organismo latinoamericanos, con su contrato de aprendizaje en nuestra legislación laboral, dándose con independencia.
Zur Bedeutung des Integral-Begriffs im Rahmen von Schulmathematik
Creators: name: Picher, Franz
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: In diesem Beitrag wird diskutiert, wie durch eine reflektierte Betrachtung des Integral-Begriffs am Ende der schulischen Laufbahn einerseits eine rückblickend-abschließende und andererseits eine ausblickende Reflexion in Bezug auf Schulmathematik geleistet werden kann. Als – insbesondere aus bildungstheoretischer Sicht – bedeutsam werden hierbei einerseits ein pragmatisch-anwendungsorientierter Aspekt und andererseits ein erkenntnistheoretischer Aspekt identifiziert. In der Auseinandersetzung mit diesen beiden Aspekten erweist sich sodann der Übergang von der Vorstellung des Integrals als Flächenbilanz zur Betrachtung des Integrals als theoretische Erweiterung des Messens als der Sache dienlich.
TEST TAKING STRATEGIES USE ON THE DEVELOPING LISTENING SKILL
Creators: name: Tojiboyeva, Madina
Publisher: name: Zenodo
Year: 2024

description: Working with each of the language skills, their formation and integration is the basis of modern methodology. From this point of view, it is very important to explain the importance of listening comprehension skills to the students and work on them. A number of methods can be used to build and develop listening comprehension in modern English, most of which are integrated with other skills. Pre-listening practice activities play a very important role in helping you learn to listen in a foreign language.
Lattice Gluon and Ghost Propagators, and the Strong Coupling in Pure SU(3) Yang-Mills Theory: Finite Lattice Spacing and Volume Effects
Creators: name: Duarte, Anthony G.
name: Oliveira, Orlando
name: Silva, Paulo J.
Publisher: name: arXiv
Year: 2016
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: The dependence of the Landau gauge two point gluon and ghost correlation functions on the lattice spacing and on the physical volume are investigated for pure SU(3) Yang-Mills theory in four dimensions using lattice simulations. We present data from very large lattices up to $128^4$ and for two lattice spacings $0.10$ fm and $0.06$ fm corresponding to volumes of $\sim$ (13 fm)$^4$ and $\sim$ (8 fm)$^4$, respectively. Our results show that, for sufficiently large physical volumes, both propagators have a mild dependence on the lattice volume. On the other hand, the gluon and ghost propagators change with the lattice spacing $a$ in the infrared region, with the gluon propagator having a stronger dependence on $a$ compared to the ghost propagator. In what concerns the strong coupling constant $α_s (p^2)$, as defined from gluon and ghost two point functions, the simulations show a sizeable dependence on the lattice spacing for the infrared region and for momenta up to $\sim 1$ GeV.
description: 8 pages, 8 figures
A Look into Causal Effects under Entangled Treatment in Graphs: Investigating the Impact of Contact on MRSA Infection
Creators: name: Ma, Jing
name: Chen, Chen
name: Vullikanti, Anil
name: Mishra, Ritwick
name: Madden, Gregory
name: Borrajo, Daniel
name: Li, Jundong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Methicillin-resistant Staphylococcus aureus (MRSA) is a type of bacteria resistant to certain antibiotics, making it difficult to prevent MRSA infections. Among decades of efforts to conquer infectious diseases caused by MRSA, many studies have been proposed to estimate the causal effects of close contact (treatment) on MRSA infection (outcome) from observational data. In this problem, the treatment assignment mechanism plays a key role as it determines the patterns of missing counterfactuals -- the fundamental challenge of causal effect estimation. Most existing observational studies for causal effect learning assume that the treatment is assigned individually for each unit. However, on many occasions, the treatments are pairwisely assigned for units that are connected in graphs, i.e., the treatments of different units are entangled. Neglecting the entangled treatments can impede the causal effect estimation. In this paper, we study the problem of causal effect estimation with treatment entangled in a graph. Despite a few explorations for entangled treatments, this problem still remains challenging due to the following challenges: (1) the entanglement brings difficulties in modeling and leveraging the unknown treatment assignment mechanism; (2) there may exist hidden confounders which lead to confounding biases in causal effect estimation; (3) the observational data is often time-varying. To tackle these challenges, we propose a novel method NEAT, which explicitly leverages the graph structure to model the treatment assignment mechanism, and mitigates confounding biases based on the treatment assignment modeling. We also extend our method into a dynamic setting to handle time-varying observational data. Experiments on both synthetic datasets and a real-world MRSA dataset validate the effectiveness of the proposed method, and provide insights for future applications.
Posterior subcapsular cataracts are a late effect after acute exposure to 0.5 Gy ionizing radiation in mice
Creators: name: Kunze, Sarah
name: Cecil, Alexander
name: Prehn, Cornelia
name: Möller, Gabriele
name: Ohlmann, Andreas
name: Wildner, Gerhild
name: Thurau, Stephan
name: Unger, Kristian
name: Rößler, Ute
name: Hölter, Sabine M.
name: Tapio, Soile
name: Wagner, Florian
name: Beyerlein, Andreas
name: Theis, Fabian
name: Zitzelsberger, Horst
name: Kulka, Ulrike
name: Adamski, Jerzy
name: Graw, Jochen
name: Dalke, Claudia
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: The long-term effect of low and moderate doses of ionizing radiation on the lens is still a matter of debate and needs to be evaluated in more detail. We conducted a detailed histological analysis of eyes from B6C3F1 mice cohorts after acute gamma irradiation (60Co source; 0.063 Gy/min) at young adult age of 10 weeks with doses of 0.063, 0.125, and 0.5 Gy. Sham irradiated (0 Gy) mice were used as controls. To test for genetic susceptibility heterozygous Ercc2 mutant mice were used and compared to wild-type mice of the same strain background. Mice of both sexes were included in all cohorts. Eyes were collected 4 h, 12, 18 and 24 months after irradiation. For a better understanding of the underlying mechanisms, metabolomics analyses were performed in lenses and plasma samples of the same mouse cohorts at 4 and 12 h as well as 12, 18 and 24 months after irradiation. For this purpose, a targeted analysis was chosen. This analysis revealed histological changes particularly in the posterior part of the lens that rarely can be observed by using Scheimpflug imaging, as we reported previously. We detected a significant increase of posterior subcapsular cataracts (PSCs) 18 and 24 months after irradiation with 0.5 Gy (odds ratio 9.3; 95% confidence interval 2.1–41.3) independent of sex and genotype. Doses below 0.5 Gy (i.e. 0.063 and 0.125 Gy) did not significantly increase the frequency of PSCs at any time point. In lenses, we observed a clear effect of sex and aging but not of irradiation or genotype. While metabolomics analyses of plasma from the same mice showed only a sex effect. This article demonstrates a significant radiation-induced increase in the incidence of PSCs, which could not be identified using Scheimpflug imaging as the only diagnostic tool.
Deuteration in infrared dark clouds
Creators: name: Lackington, Matias
name: Fuller, Gary A.
name: Pineda, Jaime E.
name: Garay, Guido
name: Peretto, Nicolas
name: Traficante, Alessio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Much of the dense gas in molecular clouds has a filamentary structure but the detailed structure and evolution of this gas is poorly known. We have observed 54 cores in infrared dark clouds (IRDCs) using N$_2$H$^+$ (1-0) and (3-2) to determine the kinematics of the densest material, where stars will form. We also observed N$_2$D$^+$ (3-2) towards 29 of the brightest peaks to analyse the level of deuteration which is an excellent probe of the quiescent of the early stages of star formation. There were 13 detections of N$_2$D$^+$ (3-2). This is one of the largest samples of IRDCs yet observed in these species. The deuteration ratio in these sources ranges between 0.003 and 0.14. For most of the sources the material traced by N$_2$D$^+$ and N$_2$H$^+$ (3-2) still has significant turbulent motions, however three objects show subthermal N$_2$D$^+$ velocity dispersion. Surprisingly the presence or absence of an embedded 70 $μ$m source shows no correlation with the detection of N$_2$D$^+$ (3-2), nor does it correlate with any change in velocity dispersion or excitation temperature. Comparison with recent models of deuteration suggest evolutionary time-scales of these regions of several free-fall times or less.
description: 15 pages, 12 figures
To “E” or not to “E”? - That is the Question. Chancen & Grenzen eines E-Proof-Systems zur Förderung von Beweiskompetenzen
Creators: name: Platz, Melanie
name: Niehaus, Engelbert
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Vorgestellt werden erste Ergebnisse einer Voruntersuchung zur Herangehensweise an mathematische Beweise von Schülerinnen und Schülern (SuS) mit besonderen mathematischen Begabungen, die an der Schüleruniversität der Universität Koblenz-Landau, Campus Landau, teilnehmen. Die Forschungfrage ist: Welchen Beitrag leistet ein E-Proof-System für das Verständnis von Beweisstrukturen? Die Ergebnisse werden verwendet, um Schlussfolgerungen für die weitere Konzeption für die Beweisunterstützung in der Schüleruniversität zu ziehen.
title: Verhaltensökonomie im Projektmanagement und der Einfluss von kognitiven Verzerrungen in der Projektplanung
Creators: name: Hamzic, Edvin
Publisher: name: FH Vorarlberg (Fachhochschule Vorarlberg)
Year: 2023
Subjects: subject: 330 Wirtschaft

description: Projekte zeichnen sich aus durch ihre Einmaligkeit und Offenheit. Unternehmen sind bestrebt ihre Projekte zum positiven Abschluss zu bringen. In dieser Ausarbeitung wird die Rolle der Verhaltensökonomie im Projektmanagement beleuchtet. Dabei wird der Fokus auf die Projektplanung und insbesondere auf die Aufwandsschätzung gelegt. Der theoretische Rahmen bildet ein solides Verständnis von Verhaltensökonomie und Projektmanagement. Mittels systematischer Literaturrecherche für den Zeitraum von 2017 bis 2023 werden die gängigsten kognitiven Verzerrungen ergründet, die in Projekten, insbesondere bei Aufwandsschätzungen häufig auftreten. Die häufigste kognitive Verzerrung ist der Optimism Bias, gefolgt vom Escalation of Commitment, Strategic Misrepresentation bis hin zur Planning Fallacy und dem Endownment Effect. Das Ergebnis dieser Ausarbeitung zeigt, dass kognitive Verzerrungen den Projekterfolg maßgeblich beeinflussen können.
description: Projects are characterized by their uniqueness and openness. Companies strive to bring their projects to a positive conclusion. This elaboration examines the role of behavioral economics in project management. The focus is on project planning and in particular on the cost estimate. The theoretical framework provides a solid understanding of behavioural economics and project management. By means of a systematic literature review for the period from 2017 to 2023, the most common cognitive biases that frequently occur in projects, especially in effort estimation, are explored. The most common cognitive bias is optimism bias, followed by escala-ion of commitment, strategic misrepresentation, planning fallacy and the endownment effect. The result of this paper shows that cognitive biases can significantly influence project success.
Sprachförderung im Mathematikunterricht - Ein Überblick zu vernetzten Entwicklungsforschungsstudien
Creators: name: Prediger, Susanne
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2015
Subjects: subject: 510

description: Sprache muss auch im Mathematikunterricht gefördert werden, aber welche Sprachmittel genau? Und wie? Der Kurzbeitrag gibt einen Überblick über Entwicklungsforschungsstudien aus dem Dortmunder MuM-Projekt, in denen für unterschiedliche mathematische Themen spezifiziert wird, welche Sprachmittel tatsächlich benötigt werden und mit welchen sprach- und fachdidaktischen Designprinzipien diese erarbeitet werden können.
Transitions and bistability of thermal convection between differentially rotating spherical shells
Creators: name: Mannix, Paul
Publisher: name: Imperial College London
Year: 2019

description: This thesis investigates the motion of heated fluid between two differentially rotating spherical shells. Although the motion is simple for weak heating and differential rotation, it transitions to more complicated states as both increase. Heating a quiescent fluid from below gives rise to cellular convective motion as the temperature gradient becomes sufficiently steep. Typically this transition increases heat transfer. Differentially rotating spherical shells also generate a state of cellular motion, which in this case transports angular momentum. When both effects are present, it is often assumed the fluid chooses an optimal configuration which maximises the transfer of angular momentum and heat. Depending on how the equilibrium is reached however, this maximisation may not always be achieved, with two different stable equilibria often found to co-exist for the same heating and rotation strengths. We want to understand why the fluid motion in a spherical shell is bistable, and how this scenario might arise. We find that bistability in the non-rotating problem depends largely on the shell separation, and when differential rotation is introduced, on the relative strength of heating to rotation. In both cases the strength of thermal plume boundary layers appears to play a key role. We find that for differentially rotating problem, the transition between solutions can occur either due to the destabilisation of an equatorial plume by buoyancy forces, or alternatively a polar plume by Ekman pumping. Our results demonstrate that although bistability in this system cannot be simply explained by the flow maximising its torque or heat transfer, the polar and equatorial regions are of particular significance. As bistability is a ubiquitous feature of many fluid systems, particularly those for which the transport of heat and angular momentum is important, it's hoped that this study can provide valuable insights and help towards the understanding of such behaviour.
Open Heavy Flavor in QCD Matter and in Nuclear Collisions
Creators: name: Prino, Francesco
name: Rapp, Ralf
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We review the experimental and theoretical status of open heavy-flavor (HF) production in high-energy nuclear collisions at RHIC and LHC. We first overview the theoretical concepts and pertinent calculations of HF transport in QCD matter, including perturbative and non-perturbative approaches in the quark-gluon plasma, effective models in hadronic matter, as well as implementations of heavy-quark (HQ) hadronization. This is followed by a brief discussion of bulk evolution models for heavy-ion collisions and initial conditions for the HQ distributions which are needed to calculate HF spectra in comparison to observables. We then turn to a discussion of experimental data that have been collected to date at RHIC and LHC, specifically for the nuclear suppression factor and elliptic flow of semileptonic HF decays, D mesons, non-prompt $J/ψ$ from B-meson decays, and b-jets. Model comparisons to HF data are conducted with regards to extracting the magnitude, temperature and momentum-dependence of HF transport coefficients from experiment.
description: 89 pages, 30 figures, review article
Evaluación geotécnica de inestabilidad de taludes. Caso estudio: Institución social Jardín Infantil Lipava casco urbano Barranquilla
Creators: name: Morales Salas, Hernan José
name: Valiente Olivo, Mario Esaú
Publisher: name: Universidad de Cartagena
Year: 2017
Subjects: Taludes (mecánica de suelo)
Geología
Ingeniería geológica
Geomorfología

description: Tesis (Ingeniero Civil)-- Universidad de Cartagena. Facultad de Ciencias e Ingenierías. Programa de Ingeniería Civil, 2017
description: El presente estudio tiene por objeto evaluar geotécnicamente la estabilidad de los taludes donde se localiza el jardín social Lipaya al suroccidente de la ciudad de Barranquilla, mediante el análisis de los factores de seguridad por los métodos de equilibrio limite usando el software Slide v. 5.014® para determinar el nivel de riesgo de la zona y diseñar conceptualmente obras de mitigación y control
Berufsperspektiven katholischer Theologinnen und ihre Situation in den Fachbereichen für Katholische Theologie an deutschen Universitäten
Creators: name: Müller, Iris
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 21 Nr. 6 (1985): Concilium: Internationale Zeitschrift für Theologie, Band 21, Heft 6