cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Frauen und Karriere. Fehlender Wille zur Macht?
Creators: name: Schwieren, Christiane
name: Sieverding, Monika
Publisher: name: Ruperto Carola
Year: 2017

description: Noch immer unterscheiden sich die beruflichen Karrieren von Frauen und Männern erheblich – und noch immer finden sich deutlich weniger Frauen in Führungspositionen. Nach den Gründen für diesen Unterschied wird schon lange gesucht. Aufschlussreiche Ergebnisse erbrachten wirtschaftswissenschaftliche und psychologische Untersuchungen. Sie lassen provokant fragen: Macht es überhaupt Sinn, Gegenmaßnahmen zu ergreifen?
description: Ruperto Carola, Nr. 10 (2017): Frau & Mann
Four-channel System for Characterization of Josephson Parametric Amplifiers
Creators: name: Ivanov, Boris I.
name: Kim, Jinmyeong
name: Kutlu, Çağlar
name: van Loo, Arjan F.
name: Nakamura, Yasunobu
name: Uchaikin, Sergey V.
name: Oh, Seonjeong
name: Gkika, Violeta
name: Matlashov, Andrei
name: Chung, Woohyun
name: Semertzidis, Yannis K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The axion search experiments based on haloscopes at the Center for Axion and Precision Physics Research (CAPP) of the Institute for Basic Science (IBS) in South Korea are performed in the frequency range from 1 GHz to 6 GHz. In order to perform the experiments in a strong magnetic field of 12 T and a large-volume cavity of close to 40 liters, we use He wet dilution refrigerators with immersed superconducting magnets. The measurements require continuous operation for months without interruptions for microwave component replacements. This is achieved by using different cryogenic engineering approaches including microwave RF-switching. The critical components, defining the scanning rate and the sensitivity of the setup, are the Josephson parametric amplifiers (JPA) and cryogenic low noise amplifiers (cLNA) based on high-electron-mobility-transistor (HEMT) technology. It is desirable for both devices to have a wide frequency range and low noise close to the quantum limit for the JPA. In this paper, we show a recent design of a 4-channel measurement setup for JPA and HEMT measurements. The setup is based on a 4-channel wideband noise source (NS) and is used for both JPA and HEMT gain and noise measurements. The setup is placed at 20 mK inside the dry dilution refrigerator. The NS is thermally decoupled from the environment using plastic spacers, superconducting wires and superconducting coaxial cables. We show the gain and noise temperature curves measured for 4 HEMT amplifiers and 2 JPAs in one cool-down
description: to be published in JPS Conference Proceedings (LT29)
Towards a direct transition energy measurement of the lowest nuclear excitation in 229Th
Creators: name: Wense, L. v. d.
name: Thirolf, P. G.
name: Kalb, D.
name: Laatiaoui, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The isomeric first excited state of the isotope 229Th exhibits the lowest nuclear excitation energy in the whole landscape of known atomic nuclei. For a long time this energy was reported in the literature as 3.5(5) eV, however, a new experiment corrected this energy to 7.6(5) eV, corresponding to a UV transition wavelength of 163(11) nm. The expected isomeric lifetime is $τ=$ 3-5 hours, leading to an extremely sharp relative linewidth of Delta E/E ~ 10^-20, 5-6 orders of magnitude smaller than typical atomic relative linewidths. For an adequately chosen electronic state the frequency of the nuclear ground-state transition will be independent from influences of external fields in the framework of the linear Zeeman and quadratic Stark effect, rendering 229mTh a candidate for a reference of an optical clock with very high accuracy. Moreover, in the literature speculations about a potentially enhanced sensitivity of the ground-state transition of $^{229m}$Th for eventual time-dependent variations of fundamental constants (e.g. fine structure constant alpha) can be found. We report on our experimental activities that aim at a direct identification of the UV fluorescence of the ground-state transition energy of 229mTh. A further goal is to improve the accuracy of the ground-state transition energy as a prerequisite for a laser-based optical control of this nuclear excited state, allowing to build a bridge between atomic and nuclear physics and open new perspectives for metrological as well as fundamental studies.
Occo análisis: El tráfico ilegal de drogas y sus paradojas
Creators: name: Eventon, Ross
Publisher: name: Universidad del Rosario
Year: 2022

description: Millones de personas en todo el mundo consumen regularmente sustancias que han sido declaradas ilegales. Esta demanda, con solo fluctuaciones menores, es efectivamente estable. A pesar de que se han gastado miles de millones de dólares en operaciones antinarcóticos, el suministro de estas drogas nunca se ha interrumpido de manera significativa, y no se han aliviado las condiciones socioeconómicas que, durante décadas, han llevado a muchos agricultores a producir cultivos ilícitos. Medio siglo de experiencia en operaciones antinarcóticos ha demostrado cómo esta combinación de factores puede conducir a resultados contradictorios y paradójicos. Quizás la más arraigada es la forma en que las operaciones de interdicción han sido hasta cierto punto contraproducentes: han provocado que los traficantes adopten métodos cada vez más sofisticados de transporte de drogas, o los han empujado a utilizar nuevas rutas a través de países más vulnerables, como ocurrió en África Occidental a principios de la década de 2000. Este documento discutirá las paradojas más prominentes, pero menos observadas que tienen lugar en el lado de la oferta del tráfico de drogas, y evaluará las implicaciones para las políticas de drogas en el futuro.
Additional file 1 of Association between pulse pressure, systolic blood pressure and the risk of rapid decline of kidney function among general population without hypertension: results from the China health and retirement longitudinal study (CHARLS)
Creators: name: Wang, Huai-yu
name: Meng, Qinqin
name: Yang, Chao
name: Wang, Yafeng
name: Kong, Guilan
name: Zhao, Yaohui
name: Wang, Fang
name: Zhang, Luxia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology

description: Additional file 1. Unadjusted and partly adjusted models for the association between BP category and the risk of rapid decline of eGFR, age-stratified.
Zum Verhältnis von gesellschaftlicher Moderne und ästhetischer Modernität 1900-1933
Creators: name: Becker, Sabina
Publisher: name: Literaturstraße. Chinesisch-deutsche Zeitschrift für Sprach- und Literaturwissenschaft
Year: 2017

description: -
description: Literaturstraße. Chinesisch-deutsche Zeitschrift für Sprach- und Literaturwissenschaft, Bd. 9 (2008)
The invasion of a free floating planet and the number asymmetry of Jupiter Trojans
Creators: name: Li, Jian
name: Xia, Zhihong Jeff
name: Georgakarakos, Nikolaos
name: Yoshida, Fumi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This paper extends our previous study (Li et al. 2023) of the early evolution of Jupiter and its two Trojan swarms by introducing the possible perturbations of a free floating planet (FFP) invading the Solar System. In the framework of the invasion of a FFP, we aim to provide some new scenarios to explain the number asymmetry of the L4 and L5 Jupiter Trojans, and some other observed features. We investigate two different cases: (i) The indirect case, where Jupiter experiences a scattering encounter with the FFP and jumps outwards at a speed that is much higher than that considered in(Li et al. 2023), resulting in a change in the numbers of the L4 (N4) and L5 (N5) Trojans swarms. (ii) The direct case, in which the FFP traverses the L5 region and affects the stability of the local Trojans. In the indirect case, the outward migration of Jupiter can be fast enough to make the L4 islands disappear temporarily, inducing a resonant amplitude increase of the local Trojans. After the migration is over, the L4 Trojans come back to the re-appeared and enlarged islands. As for the L5 islands, they always exist but expand even more considerably. Since the L4 swarm suffers less excitation in the resonant amplitude than the L5 swarm, more L4 Trojans are stable and could survive to the end. In the direct case, the FFP could deplete a considerable fraction of the L5 Trojans, while the L4 Trojans at large distances are not affected and all of them could survive. Both the indirect and direct cases could result in a number ratio of R45=N4/N5~1.6 that can potentially explain the current observations. The latter has the advantage of producing the observed resonant amplitude distribution. For achieving these results, we propose that the FFP should have a mass of at least of a few tens of Earth masses and its orbital inclination is allowed to be as high as 40 degrees.
description: Accepted for publication in A&A, 13 pages, 7 figures, 5 tables
Wonder of sine-Gordon Y-systems
Creators: name: Nakanishi, Tomoki
name: Stella, Salvatore
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 13F60, 17B37

description: The sine-Gordon Y-systems and the reduced sine-Gordon Y-systems were introduced by Tateo in the 90's in the study of the integrable deformation of conformal field theory by the thermodynamic Bethe ansatz method. The periodicity property and the dilogarithm identities concerning these Y-systems were conjectured by Tateo, and only a part of them have been proved so far. In this paper we formulate these Y-systems by the polygon realization of cluster algebras of types A and D, and prove the conjectured periodicity and dilogarithm identities in full generality. As it turns out, there is a wonderful interplay among continued fractions, triangulations of polygons, cluster algebras, and Y-systems.
description: v1: 66 pages; v2: 53 pages, the version to appear in Trans. Amer. Math. Soc. (in the journal version, the proofs of Props. 5.29-5.31 and Sect. 5.8 will be omitted due to the limitation of space); v3: 53 pages, minor improvement of figures; v4 (no text changes): Sage (v7.0 and higher) has built-in functions to plot the triangulations associated with sine-Gordon and reduced sine-Gordon Y-systems
title: Παράγοντες που επηρεάζουν την επιχειρηματική πρόθεση φοιτητών πολυτεχνικών σχολών
Creators: name: Σαμούρ Γεώργιος
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Chiral Magnetic Effect on the Lattice
Creators: name: Yamamoto, Arata
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review recent progress on the lattice simulations of the chiral magnetic effect. There are two different approaches to analyze the chiral magnetic effect on the lattice. In one approach, the charge density distribution or the current fluctuation is measured under a topological background of the gluon field. In the other approach, the topological effect is mimicked by the chiral chemical potential, and the induced current is directly measured. Both approaches are now developing toward the exact analysis of the chiral magnetic effect.
description: to appear in Lect. Notes Phys. "Strongly interacting matter in magnetic fields" (Springer), edited by D. Kharzeev, K. Landsteiner, A. Schmitt, H.-U. Yee
Vater, Mutter, Kind. Elternschaft als Herausforderung
Creators: name: Lobinger, Thomas
Publisher: name: Ruperto Carola
Year: 2017

description: Eltern in aktiver Erziehungsverantwortung erscheinen Arbeitgebern vielfach problematisch: Sie sind in zeitlicher Hinsicht oft weniger flexibel und fallen – insbesondere bei kleinen Kindern – häufiger aus. Was passiert, wenn ein Arbeitgeber eine Bewerberin oder einen Bewerber deshalb bei der Besetzung eines Arbeitsplatzes benachteiligt? Bislang ist das vor allem ein Frauen-Thema, denn bekanntlich kümmert sich auch heute noch ganz überwiegend das weibliche Geschlecht um die Erziehung der Kinder und steckt beruflich zurück. Was aber ist, wenn sich das zunehmend ändert und auch Männer Benachteiligungen in Bewerbungsverfahren erleiden, weil sie sich aktiv um ihren Nachwuchs kümmern wollen? Können sie dann auf denselben gesetzlichen Schutz hoffen wie heute Frauen? Der folgende Beitrag geht dieser Frage nach und kommt zu einem bemerkenswerten Ergebnis: Hier herrscht keineswegs Gleichberechtigung – und das zu Ungunsten der Männer.
description: Ruperto Carola, Nr. 10 (2017): Frau & Mann
Occo análisis: La niñez reclutada. Nariño: el reclutamiento en medio de la expansión territorial
Creators: name: Guerrero Bolívar, Sara Alejandra
name: Calderón Pardo, Laura Victoria
Publisher: name: Universidad del Rosario
Year: 2022

description: La búsqueda del control de las áreas que antes eran dominadas por la extinta guerrilla de las FARC-EP ha creado una rivalidad sangrienta entre los varios grupos armados que ya pelean en busca de las lucrativas economías ilícitas de Nariño. La intensidad de estos conflictos ha aumentado la “necesidad” de los grupos de reemplazar a sus muertos en combate. Es esta morbosa realidad la que está impulsando el reclutamiento de niños, niñas y adolescentes (NNA) en el departamento. Hay tanta competencia que los pagos ofrecidos para persuadir a los jóvenes de que se unan a sus filas se han más que duplicado. Un pago de casi 4 millones de pesos tiene mucho poder de atracción en una zona donde la pobreza es la realidad para la gran mayoría de la población.
The slippery slope of dust attenuation curves: Correlation of dust attenuation laws with star-to-dust compactness up to z = 4
Creators: name: Hamed, M.
name: Małek, K.
name: Buat, V.
name: Junais
name: Ciesla, L.
name: Donevski, D.
name: Riccio, G.
name: Figueira, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. We investigate dust attenuation of 122 heavily dust-obscured galaxies detected with the Atacama Large Millimeter Array (ALMA) and Herschel in the COSMOS field. We search for correlations between dust attenuation recipes and the variation of physical parameters, mainly the effective radii of galaxies, their star formation rates (SFR), and stellar masses, and aim to understand which of the commonly used laws best describes dust attenuation in dusty star-forming galaxies at high redshift. Methods. We make use of the extensive photometric coverage of the COSMOS data combined with highly-resolved dust continuum maps from ALMA. We use CIGALE to estimate various physical properties of these dusty objects, mainly their SFR, their stellar masses and their attenuation. We infer galaxy effective radii (Re) using GALFIT in the Y band of HSC and ALMA continuum maps. We use these radii to investigate the relative compactness of the dust continuum and the extension of the rest-frame UV/optical Re(y)/Re(ALMA). Results. We find that the physical parameters calculated from our models strongly depend on the assumption of dust attenuation curve. As expected, the most impacted parameter is the stellar mass, which leads to a change in the "starburstiness" of the objects. We find that taking into account the relative compactness of star-to-dust emission prior to SED fitting is crucial, especially when studying dust attenuation of dusty star-forming galaxies. Shallower attenuation curves did not show a clear preference of compactness with attenuation, while the Calzetti attenuation curve preferred comparable spatial extent of unattenuated stellar light and dust emission. The evolution of the Re(UV)/Re(ALMA) ratio with redshift peeks around the cosmic noon in our sample of DSFGs, showing that this compactness is correlated with the cosmic SFR density of these dusty sources.
description: 18 pages, 13 figures, accepted for publication in A&A. Abstract abridged for arXiv submission
Combinatorial Applications of Möbius Inversion
Creators: name: Jameson, Marie
name: Schneider, Robert P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11A25, 11P84, 05A17

description: In important work on the parity of the partition function, Ono related values of the partition function to coefficients of a certain mock theta function modulo 2. In this paper, we use Möbius inversion to give analogous results which relate several combinatorial functions via identities rather than congruences.
description: Accepted for publication in Proceedings of the AMS
Ladies' Choice. Ausdrucksformen weiblicher Macht im Mittelalter
Creators: name: Burkhardt, Julia
name: Just, Imke
Publisher: name: Ruperto Carola
Year: 2017

description: Wirkten adlige Frauen im mittelalterlichen Europa lediglich als Begleiterinnen im „Schatten“ ihrer königlichen Gatten oder verfügten sie über tatsächliche Gestaltungs macht? Anhand unterschiedlicher Nuancen von Machtausübung zeigen Heidelberger Historikerinnen, dass weibliche Macht im Mittelalter vielfältige Ausdrucksformen kannte. Abhängig von ihrem sozialen Hintergrund und ihrer gesellschaftlichen Position verfügten hochadlige Frauen in den Bereichen Politik, Religion und kulturellem Mäzenatentum sehr wohl über Gestaltungsräume und Wahlmöglichkeiten.
description: Ruperto Carola, Nr. 10 (2017): Frau & Mann
Occo análisis: La niñez reclutada. Caquetá: Los niños, niñas y adolescentes reclutados para trabajar en las redes ilícitas de las disidentes de las FARC
Creators: name: Marmolejo Sánchez, Dilan Alexander
name: Calderón Pardo, Laura Victoria
Publisher: name: Universidad del Rosario
Year: 2022

description: Caquetá es uno de los departamentos con mayor presencia de las disidencias de las FARC que están reclutando a niños, niñas y adolescentes (NNA) para trasladar mercancías ilegales como drogas y armas a lo largo de las rutas de tráfico en la región. Los NNA también son reclutados para trabajar en cultivos de coca y laboratorios de cocaína en la zona. Las comunidades indígenas se han visto afectadas de manera desproporcionada a medida de que las facciones disidentes de las FARC se aprovechan de su marginación socioeconómica, además de necesitar su conocimiento local de terrenos difíciles
Discovery of two promising isolated neutron star candidates in the SRG/eROSITA All-Sky Survey
Creators: name: Kurpas, J.
name: Schwope, A. D.
name: Pires, A. M.
name: Haberl, F.
name: Buckley, D. A. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of the isolated neutron star (INS) candidates eRASSU J065715.3+260428 and eRASSU J131716.9-402647 from the Spectrum Roentgen Gamma (SRG) eROSITA All-Sky Survey. Selected for their soft X-ray emission and absence of catalogued counterparts, both objects were recently targeted with the Large Binocular Telescope and the Southern African Large Telescope. The absence of counterparts down to deep optical limits (25 mag, 5$σ$) and, as a result, large X-ray-to-optical flux ratios in both cases strongly suggest an INS nature. The X-ray spectra of both sources are well described by a simple absorbed blackbody, whereas other thermal and non-thermal models (e.g. a hot-plasma emission spectrum or power law) are disfavoured by the spectral analysis. Within the current observational limits, and as expected for cooling INSs, no significant variation ($>2σ$) has been identified over the first two-year time span of the survey. Upcoming dedicated follow-up observations will help us to confirm the candidates' nature.
description: 11 pages, 8 figures, accepted for publication in A&A
title: Χρήση εξελικτικών αλγορίθμων για την επίλυση του διλήμματος του φυλακισμένου
Creators: name: Ρηγακης Μανουσος
Publisher: name: Technical University of Crete
Year: 2016

description: H συγκεκριμένη μεταπτυχιακή διατριβή προτείνει δύο δυαδικούς αλγορίθμους για την ανάπτυξη στρατηγικών για το επαναληπτικό δίλημμα του φυλακισμένου (IPD). Για να καθορίσουμε την ποιότητα των στρατηγικών πραγματοποιείται μια σύγκριση ανάμεσα στον δυαδικό αλγόριθμο της τεχνητής αποικίας μελισσών (ABC), του δυαδικού αλγορίθμου της διαφορικής εξέλιξης (DE) και σε αρκετές βιβλιογραφικές στρατηγικές. Ενώ για την καλύτερη διερεύνηση των αποτελεσμάτων μας και για την επιλογή του καταλληλότερου από αυτούς τους δύο αλγορίθμους για το συγκεκριμένο πρόβλημα, οι δύο αλγόριθμοι που υλοποιήσαμε αντιμετωπίζουν τον αλγόριθμο βελτιστοποίησης σμήνους σωματιδίων (PSO). Τέλος, οι αλγόριθμοι DE  και ABC συγκρίνονται μεταξύ τους παίζοντας ο ένας ενάντια στον άλλον. Στην συγκεκριμένη διατριβή εξετάζουμε λοιπόν την καταλληλότητα των δύο αυτών αλγορίθμων (ABC, DE) να παράγουν στρατηγικές για το IPD, το όποιο δεν έχει μελετηθεί στο παρελθόν.
Occo análisis: La niñez reclutada. Chocó: la niñez étnica olvidada
Creators: name: Alvarado Córdoba, María Fernanda
name: Navas Castañeda, María Alejandra
Publisher: name: Universidad del Rosario
Year: 2022

description: El Chocó es el tercer departamento con más reclutamiento de niños, niñas y adolescentes (NNA) en Colombia, relacionado principalmente con la disputa entre el Ejército de Liberación Nacional (ELN) y las Autodefensas Gaitanistas de Colombia (AGC), también conocido como los Urabeños o el Clan del Golfo, por la búsqueda de control del territorio, las rutas para el tráfico de cocaína, el tráfico de armas, la minería ilegal, explotación de madera y el tránsito de tropas a lo largo de la región hacía otros departamentos del país
In-memory photonic dot-product engine with electrically programmable weight banks
Creators: name: Zhou, Wen
name: Dong, Bowei
name: Farmakidis, Nikolaos
name: Li, Xuan
name: Youngblood, Nathan
name: Huang, Kairan
name: He, Yuhan
name: Wright, C. David
name: Pernice, Wolfram H. P.
name: Bhaskaran, Harish
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: Systems and Control (eess.SY)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Electronically reprogrammable photonic circuits based on phase-change chalcogenides present an avenue to resolve the von-Neumann bottleneck; however, implementation of such hybrid photonic-electronic processing has not achieved computational success. Here, we achieve this milestone by demonstrating an in-memory photonic-electronic dot-product engine, one that decouples electronic programming of phase-change materials (PCMs) and photonic computation. Specifically, we develop non-volatile electronically reprogrammable PCM memory cells with a record-high 4-bit weight encoding, the lowest energy consumption per unit modulation depth (1.7 nJ per dB) for Erase operation (crystallization), and a high switching contrast (158.5%) using non-resonant silicon-on-insulator waveguide microheater devices. This enables us to perform parallel multiplications for image processing with a superior contrast-to-noise ratio (greater than 87.36) that leads to an enhanced computing accuracy (standard deviation less than 0.007). An in-memory hybrid computing system is developed in hardware for convolutional processing for recognizing images from the MNIST database with inferencing accuracies of 86% and 87%.
Occo análisis: La niñez reclutada. Vaupés: adolescentes indígenas son llevados por su conocimiento del terreno local
Creators: name: Sánchez, María Cecilia
name: Teychenne, Luana
name: Visset, Emilie
Publisher: name: Universidad del Rosario
Year: 2022

description: Vaupés es el cuarto departamento con mayores índices de reclutamiento ilícito de niños, niñas y adolescentes (NNA). Son las disidencias de las FARC que están presentes en la región, reclutando y explotando a las comunidades indígenas. El reclutamiento en Vaupés está mayoritariamente relacionado con la elaboración de nuevas rutas de narcotráfico que existen entre Colombia y Brasil
Additional file 1 of Healthcare professional and manager perceptions on drivers, benefits, and challenges of telemedicine: results from a cross-sectional survey in the Italian NHS
Creators: name: Antonacci, Grazia
name: Benevento, Elisabetta
name: Bonavitacola, Sveva
name: Cannavacciuolo, Lorella
name: Foglia, Emanuela
name: Fusi, Giulia
name: Garagiola, Elisabetta
name: Ponsiglione, Cristina
name: Stefanini, Alessandro
Publisher: name: figshare
Year: 2023
Subjects: subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Modeling diffusion in ionic, crystalline solids with internal stress gradients
Creators: name: Hess, Benjamin L.
name: Ague, Jay J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Intracrystalline diffusion is an invaluable tool for estimating timescales of geological events. Diffusion is typically modeled using gradients in chemical potential. However, chemical potential is derived for uniform pressure and temperature conditions and therefore cannot be used to model diffusion when there are gradients in stress. Internal stress variations in minerals create gradients in strain energy which will drive diffusion. Consequently, it is necessary to have a method that incorporates stress variations into diffusion models. We derive a flux expression that allows diffusion to be modeled in ionic, crystalline solids under arbitrary stress states. Our derivation utilizes gradients in a thermodynamic potential called relative chemical potential which quantifies changes in free energy due to the exchanges of constituents on lattice sites under arbitrary stress conditions. We apply our derivation to the common quaternary garnet solid solution almandine-pyrope-grossular-spessartine. The rates and directions of divalent cation diffusion in response to stress are determined by endmember molar volume or lattice parameters, elastic moduli, and non-ideal activity interaction parameters. Our results predict that internal stress variations of one hundred MPa or more are required to shift garnet compositions by at least a few hundredths of a mole fraction. Mineral inclusions in garnet present a potential environment to test and apply our stress-driven diffusion approach, as stress variations ranging from hundreds of MPa to GPa-level are observed or predicted around such inclusions. The ability to model stress-induced diffusion may provide new information about the magnitudes of both intracrystalline stresses and the timescales during which they occurred, imparting a better understanding of large-scale tectono-metamorphic processes.
description: 43 pages, 4 figures
Twofold Transition in PT-Symmetric Coupled Oscillators
Creators: name: Bender, Carl M.
name: Gianfreda, Mariagiovanna
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The inspiration for this theoretical paper comes from recent experiments on a PT-symmetric system of two coupled optical whispering galleries (optical resonators). The optical system can be modeled as a pair of coupled linear oscillators, one with gain and the other with loss. If the coupled oscillators have a balanced loss and gain, the system is described by a Hamiltonian and the energy is conserved. This theoretical model exhibits two PT transitions depending on the size of the coupling parameter ε. For small εthe PT symmetry is broken and the system is not in equilibrium, but when εbecomes sufficiently large, the system undergoes a transition to an equilibrium phase in which the PT symmetry is unbroken. For very large εthe system undergoes a second transition and is no longer in equilibrium. The classical and the quantized versions of the system exhibit transitions at exactly the same values of ε.
description: 9 pages, 14 figures
Occo análisis: La niñez reclutada. Antioquia: el reclutamiento entre una guerra ajena y las barras de fútbol
Creators: name: Ulloa, Gineth Valentina
name: Peña Rubio, Sara
Publisher: name: Universidad del Rosario
Year: 2022

description: Antioquia es el segundo departamento que más ha sido afectado por las dinámicas de reclutamiento. Uno de los motivos por el cual las cifras de reclutamiento forzado son tan altas en este sector es la guerra que se da entre las Autodefensas Gaitanistas de Colombia (AGC), también conocido como los Urabeños o el Clan del Golfo, y el grupo los Caparros (también conocido como el Bloque Virgilio Peralta Arenas), quienes se disputan el control territorial del Bajo Cauca en el norte del departamento
Transverse Decoherence and Coherent Spectra in Long Bunches with Space Charge
Creators: name: Kornilov, Vladimir
name: Boine-Frankenheim, Oliver
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The transverse bunch spectrum and the transverse decoherence/recoherence following an initial bunch offset are important phenomena in synchrotrons and storage rings, and are widely used for beam and lattice measurements. Incoherent shifts of the particles betatron frequency and of the synchrotron frequency modify the transverse spectrum and the bunch decoherence. In this study we analyze the effects of transverse space charge and of the rf nonlinearity on the decoherence signals. The transverse bunch decoherence and the resulting coherent spectra are measured in the SIS18 synchrotron at GSI Darmstadt for different bunch parameters. Particle tracking simulations together with an analytical model are used to describe the modifications in the decoherence signals and in the coherent spectra due to space charge and the rf bucket nonlinearity.
description: Submitted on May 7 2012 to Physical Review Special Topics - Accelerators and Beams
An extreme ultraviolet wave associated with the possible expansion of sheared arcades
Creators: name: Liu, Yihan
name: Zheng, Ruisheng
name: Zhang, Liang
name: Wei, Hengyuan
name: Zhong, Ze
name: Yang, Shuhong
name: Chen, Yao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Context. Solar extreme ultraviolet (EUV) waves are propagating disturbances in the corona, and they usually accompany with various solar eruptions, from large-scale coronal mass ejections to small-scale coronal jets. Aims. Generally, it is believed that EUV waves are driven by the rapid expansion of coronal loops overlying the erupting cores. In this Letter, we present an exception of EUV wave that was not triggered by the expansion of coronal loops overlying the erupting core. Methods. Combining the multiwavelength observations from multiple instruments, we studied the event in detail. Results. The eruption was restricted in the active region (AR) and disturbed the nearby sheared arcades (SAs) connecting the source AR to a remote AR. Interestingly, following the disturbance, an EUV wave formed close to the SAs, but far away from the eruption source. Conclusions. All the results showed that the EUV wave had a closer temporal and spatial relationship with the disappearing part of SAs than the confined eruption. Hence, we suggest that the EUV wave was likely triggered by the expansion of some strands of SAs, rather than the expansion of erupting loops. It can be a possible complement for the driving mechanisms of EUV waves.
description: 9 pages, 6 figures
Occo análisis: La niñez reclutada. Guaviare: los niños vulnerables impulsan la expansión de los disidentes
Creators: name: Calderón, Laura
name: Conde Maldonado, Valentina
Publisher: name: Universidad del Rosario
Year: 2022

description: En marzo de 2021 el Departamento del Guaviare hizo notoria las complejidades que encaran las víctimas del reclutamiento forzado de niños, niñas y adolescentes (NNA) cuando se conoció que una menor de edad había muerto en un bombardeo por parte de la Fuerza Pública en contra de los grupos armados que operan en la región. Las dificultades que tiene el Estado para hacer presencia efectiva, las rentas provenientes del negocio del narcotráfico y las dificultades socioeconómicas que enfrentan los habitantes del departamento, hacen que unirse a estas estructuras sea una de las pocas opciones viables, especialmente frente a los riesgos de un reclutamiento forzado. Las facciones disidentes de las FARC están aprovechando esta vulnerabilidad para llenar sus filas y alimentar su expansión no solo en Guaviare sino en todo el país
Joint tone mapping and denoising of thermal infrared images via multi-scale Retinex and multi-task learning
Creators: name: Gödrich, Axel
name: König, Daniel
name: Eilertsen, Gabriel
name: Teutsch, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Cameras digitize real-world scenes as pixel intensity values with a limited value range given by the available bits per pixel (bpp). High Dynamic Range (HDR) cameras capture those luminance values in higher resolution through an increase in the number of bpp. Most displays, however, are limited to 8 bpp. Naive HDR compression methods lead to a loss of the rich information contained in those HDR images. In this paper, tone mapping algorithms for thermal infrared images with 16 bpp are investigated that can preserve this information. An optimized multi-scale Retinex algorithm sets the baseline. This algorithm is then approximated with a deep learning approach based on the popular U-Net architecture. The remaining noise in the images after tone mapping is reduced implicitly by utilizing a self-supervised deep learning approach that can be jointly trained with the tone mapping approach in a multi-task learning scheme. Further discussions are provided on denoising and deflickering for thermal infrared video enhancement in the context of tone mapping. Extensive experiments on the public FLIR ADAS Dataset prove the effectiveness of our proposed method in comparison with the state-of-the-art.
description: 17 pages, 10 figures
Additional file 1 of Prevalence of vitamin B complex deficiencies in women in reproductive age, pregnant, or lactating woman in Brazil: a systematic review and meta-analysis protocol
Creators: name: Mocellin, Michel Carlos
name: Curioni, Cintia Chaves
name: da Silva Pereira, Alessandra
name: Ribas, Simone Augusta
name: Teixeira, Michelle Teixeira
name: de Macedo, Tatiane Salgado Galvão
name: Palermo, Gabriel Mantolvão
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 1. Strategies used in the Literature Search.
SHAMPOO: A stochastic model for tracking dust particles under the influence of non-local disk processes
Creators: name: Oosterloo, M.
name: Kamp, I.
name: van Westrenen, W.
name: Dominik, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The abundances of CHNOS are crucial for the composition of planets. At the onset of planet formation, large amounts of these elements are stored in ices on dust grains in planet-forming disks. The evolution of this ice is affected by dynamical transport, collisional processes, and the formation and sublimation of ice. We aim to constrain the disk regions where these processes are fully coupled, and develop a flexible modelling approach that is able to predict the effects of these processes acting simultaneously on the CHNOS budgets of the dust in these regions. We compared timescales associated with these disk processes to constrain the disk regions where this approach is necessary, and developed the SHAMPOO code, which tracks the CHNOS abundances in the ice mantle of a single monomer dust particle, embedded in a larger aggregate and undergoing these processes simultaneously. The adsorption and photodesorption of monomer ices depend on the depth of the monomer in the aggregate. We investigated the effect of fragmentation velocity and aggregate filling factor on the amount of ice on monomers residing at r = 10 AU. The locations where disk processes are fully coupled depend on both grain size and ice species. Monomers embedded in aggregates with fragmentation velocities of 1 m/s are able to undergo adsorption and photodesorption more often compared to a fragmentation velocity of 5 m/s or 10 m/s. Aggregates with a filling factor of $10^{-3}$ are able to accumulate ice 22 times faster on average than aggregates with a filling factor of 1. As different grain sizes are coupled through collisions and the grain ice consists of multiple ice species, it is difficult to isolate the locations where disk processes are fully coupled, necessitating the development of the SHAMPOO code. The processing of ice may not be spatially limited to dust aggregate surfaces for either fragile or porous aggregates.
description: 30 pages, 24 figures, 4 tables, to appear in Astronomy & Astrophysics
Das Open-Source-Bibliothekssystem Koha - sechs Jahre SaaS im Bibliotheksservice-Zentrum Baden-Württemberg
Creators: name: Fischer, Katrin
Publisher: name: AKMB-news: Informationen zu Kunst, Museum und Bibliothek
Year: 2017

description: -
description: AKMB-news: Informationen zu Kunst, Museum und Bibliothek, Bd. 22, Nr. 1 (2016): AKMB-news
Interface improvement of plasma cladded Ni-based coating on copper induced by substrate preheating
Creators: name: Zhang, Chao
name: Wang, Ruidong
name: Zhang, Jun
name: Hu, Rong
name: Lv, Jinjin
name: Zhang, Yuwen
name: Li, Gaungshi
name: Lu, Xionggang
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: To further clarify the characteristics of plasma cladding on copper surface, the effect mechanism of preheating temperature on the interfacial connection of Ni-based coatings was investigated. Results showed that metallurgical bonding can be achieved between coating and copper substrate only when the preheating temperature reached at least 500°C. Without preheating, the heat of the plasma arc was conducted away by the copper with high thermal conductivity, making it difficult to form a molten pool. At low temperatures (300°C and 400°C), the copper oxides formed on copper surface during preheating had poor wettability with the liquid Ni-based alloy, resulting in unreliable interfacial connection. Properly increasing (above 500°C) the preheating temperature can promote the removal of copper oxides, thereby improving the interfacial wettability. Moreover, to avoid performance degradation caused by excessive dilution ratio, controlling the preheating temperature at about 600°C is more appropriate.
Occo análisis: La lucha contra las drogas y la militarización en América Latina
Creators: name: Russi Pérez, María Alejandra
Publisher: name: Universidad del Rosario
Year: 2022

description: En los últimos años, la lucha contra el crimen organizado y el narcotráfico ha llevado a los gobiernos de América Latina a utilizar métodos cada vez más militarizados. Esta tendencia, que es común en toda la región, ha tenido consecuencias nefastas para los derechos humanos y la seguridad ciudadana. Este resumen discutirá algunos de los resultados más problemáticos
Additional file 1 of Therapeutic efficacy of pyronaridine-artesunate (Pyramax®) against uncomplicated Plasmodium falciparum infection at Hamusit Health Centre, Northwest Ethiopia
Creators: name: Alebachew, Mihreteab
name: Gelaye, Woyneshet
name: Abate, Megbaru Alemu
name: Sime, Heven
name: Hailgiorgis, Henok
name: Gidey, Bokretsion
name: Haile, Mebrahtom
name: Assefa, Gudissa
name: Bekele, Worku
name: Belay, Habtamu
name: Parr, Jonathan B.
name: Tasew, Geremew
name: Mohammed, Hussein
name: Assefa, Ashenafi
Publisher: name: figshare
Year: 2023
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: Annex 1. Kaplan-Meier Analysis without PCR correction.
Occo análisis: La niñez reclutada. Arauca: el reclutamiento de niños, niñas y adolescentes como indoctrinamiento para establecer control social
Creators: name: Conde Maldonado, Valentina
Publisher: name: Universidad del Rosario
Year: 2022

description: El reclutamiento de niños, niñas y adolescentes (NNA) en Arauca depende del grupo armado involucrado. El Ejército de Liberación Nacional (ELN) recluta a jóvenes para establecer y mantener su control social sobre la comunidad, mientras que facciones disidentes de las FARC reclutan a NNA para apoyar su participación en actividades ilícitas. La comunidad de migrantes es particularmente vulnerable en el departamento y los números definitivamente subestiman el alcance del reclutamiento forzoso en la región
title: Εντοπισμός πηγών κινδύνων στη διαδικασία εκτίμησης επαγγελματικoύ κινδύνου
title: Identification of work hazards in occupational risk assessment
Creators: name: Ντερεκας Αλεξιος-Σεραφειμ
Publisher: name: Technical University of Crete
Year: 2016

description: Σκοπός της παρούσας διατριβής είναι η παρουσίαση διαδικασιών εκτίμησης επαγγελματικού κινδύνου στους χώρους εργασίας, ώστε να διευκολύνονται οι μηχανικοί ασφαλείας στην εφαρμογή τους. Μετά από περιγραφή του νομοθετικού πλαισίου για την υγιεινή και ασφάλεια εργασίας, θα γίνει μία ανασκόπηση των μεθοδολογιών εκτίμησης επαγγελματικού κινδύνου και θα εξεταστούν κατευθυντήριες γραμμές για τους αναλυτές. Το κύριο μέρος της διπλωματικής θα αφορά την εκτενή περιγραφή των βλαπτικών κινδύνων στους χώρους εργασίας π.χ. χημικοί και βλαπτικοί παράγοντες, ώστε οι μηχανικοί ασφαλείας να βρίσκουν όλες τις απαραίτητες πληροφορίες που θα ενισχύσουν την κρίση τους στην αξιολόγηση της επικινδυνότητας των βλαπτικών παραγόντων. Τέλος, η διπλωματική θα προσφέρει επιλεγμένες περιγραφές περιπτώσεων για την εφαρμογή της προτεινόμενης διαδικασίας εκτίμησης επαγγελματικού κινδύνου.
Ellsworth Kelly (1923 – 2015): Kurz vor seinem Tod erschien der erste Band des Werkverzeichnisses seiner Gemälde, Reliefs und Plastiken
Creators: name: Stenert, Felix
Publisher: name: AKMB-news: Informationen zu Kunst, Museum und Bibliothek
Year: 2017

description: -
description: AKMB-news: Informationen zu Kunst, Museum und Bibliothek, Bd. 22, Nr. 1 (2016): AKMB-news
Variability of Solar Five-Minute Oscillations in the Corona as Observed by the Extreme Ultraviolet Spectrophotometer (ESP) on the Solar Dynamics Observatory Extreme Ultraviolet Variability Experiment (SDO/EVE)
Creators: name: Didkovsky, Leonid
name: Kosovichev, Alexander
name: Judge, Darrell
name: Wieman, Seth
name: Woods, Tom
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar five-minute oscillations have been detected in the power spectra of two six-day time intervals from soft X-ray measurements of the Sun observed as a star using the Extreme Ultraviolet Spectrophotometer (ESP) onboard the Solar Dynamics Observatory (SDO) Extreme Ultraviolet Variability Experiment (EVE). The frequencies of the largest amplitude peaks were found matching within 3.7 microHz the known low-degree (l = 0--3) modes of global acoustic oscillations, and can be explained by a leakage of the global modes into the corona. Due to strong variability of the solar atmosphere between the photosphere and the corona the frequencies and amplitudes of the coronal oscillations are likely to vary with time. We investigate the variations in the power spectra for individual days and their association with changes of solar activity, e.g. with the mean level of the EUV irradiance, and its short-term variations due to evolving active regions. Our analysis of samples of one-day oscillation power spectra for a 49-day period of low and intermediate solar activity showed little correlation with the mean EUV irradiance and the short-term variability of the irradiance. We suggest that some other changes in the solar atmosphere, e.g. magnetic fields and/or inter-network configuration may affect the mode leakage to the corona.
description: 17 pages, 7 figures
Hale cycle in solar hemispheric radio flux and sunspots: Evidence for a northward shifted relic field
Creators: name: Mursula, Kalevi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar and heliospheric parameters can depict notable differences between the northern and southern hemisphere. Although hemispheric asymmetries of some heliospheric parameters vary systematically with Hale cycle, this is not common for solar parameters. Also, no physical mechanism exists which can explain systematic hemispheric asymmetries. We use a novel method of high heliolatitudes to increase the fraction of one hemisphere in solar 10.7cm radio fluxes and sunspot numbers. We calculate sets of hemispheric high-latitude radio fluxes and sunspot numbers with increasing heliographic latitude during the last 75 years. We also normalise these fluxes by yearly means in order to study their continuous variation. We find that cycle maximum radio fluxes and sunspot numbers in each odd cycle (19, 21, 23) are larger at northern high latitudes, while in all even cycles (18, 20, 22 24) they are larger at southern latitudes. This alternation indicates a new form of Hale cycle variation in solar activity. Hemispheric differences at cycle maxima are 15% for radio flux and 23% for sunspot numbers. The difference is largest during cycle 19 and smallest in cycle 24. Continuous fluxes depict a Hale cycle in both hemispheres, with an opposite phase and amplitude of 5% in north and 4% in south. Hemispheric Hale cycle can be explained if there is a northward directed relic magnetic field, which is shifted northward. In odd cycles, the northern hemisphere is enhanced more than the southern hemisphere and, in even cycles, the northern hemisphere is reduced more than the southern hemisphere. The decrease of asymmetry during the 7 cycles can be explained if the relic shift oscillates at the 210-year Suess/deVries period. Gleissberg cycle consists of one off-equator excursion of the relic. Relic field in the Sun also offers a possibility for century-scale forecasting of solar activity.
description: Accepted to be published in Astronomy and Astrophysics