cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measuring Transit Signal Recovery in the Kepler Pipeline I: Individual Events
Creators: name: Christiansen, Jessie L.
name: Clarke, Bruce D.
name: Burke, Christopher J.
name: Jenkins, Jon M.
name: Barclay, Thomas S.
name: Ford, Eric B.
name: Haas, Michael R.
name: Seader, Shawn
name: Smith, Jeffrey Claiborne
name: Thompson, Susan E.
name: Twicken, Joseph D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Kepler Mission was designed to measure the frequency of Earth-size planets in the habitable zone of Sun-like stars. A crucial component for recovering the underlying planet population from a sample of detected planets is understanding the completeness of that sample - what fraction of the planets that could have been discovered in a given data set were actually detected. Here we outline the information required to determine the sample completeness, and describe an experiment to address a specific aspect of that question, which is the issue of transit signal recovery. We investigate the extent to which the Kepler pipeline preserves individual transit signals by injecting simulated transits into the pixel-level data, processing the modified pixels through the pipeline, and comparing the measured transit signal-to-noise ratio (SNR) to that expected without perturbation by the pipeline. We inject simulated transit signals across the full focal plane for a set of observations of length 89 days. On average, we find that the SNR of the injected signal is recovered at MS = 0.9973(+/-0.0012)xBS-0.0151(+/-0.0049), where MS is the measured SNR and BS is the baseline, or expected, SNR. The 1σ width of the distribution around this correlation is +/-2.64%. We discuss the pipeline processes that cause the measured SNR to deviate significantly from the baseline SNR; these are primarily the handling of data adjacent to spacecraft re-pointings and the removal of harmonics prior to the measurement of the SNR. Finally we outline the further work required to characterise the completeness of the Kepler pipeline.
description: 40 pages, 18 figures, submitted to ApJ
Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation
Creators: name: Song, Hongbin
name: Kuntz, Katanya B.
name: Huntington, Elanor H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantitative analysis is conducted on the impacts of experimental imperfections in the input state, the detector properties, and their interactions on photon-subtracted squeezed vacuum states in terms of a quantum non-Gaussian character witness and Wigner function. Limitations of the non-classicality and quantum non-Gaussian characteristic of Schrödinger kitten states are identified and addressed. The detrimental effects of a photon-number detector on the generation of odd Schrödinger kitten state at near-infrared wavelengths ($\sim$ 860 nm) and telecommunication wavelengths ($\sim$ 1550 nm) are presented and analysed. This analysis demonstrates that the high dark count probability of telecommunication-wavelength photon-number detectors significantly undermines the negativity of the Wigner function in Schrödinger kitten state generation experiments. For a one-photon-subtracted squeezed vacuum state at $\sim$ 1550 nm, an APD-based photon-number-resolving detector provides no significant advantage over a non-photon-number-resolving detector when imperfections, such as dark count probability and inefficiency, are taken into account.
description: Copyright belongs to IOP Publishing ltd. This is an author-created, un-copyedited version of an article accepted for publication in New Journal of Phyiscis. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/1367-2630/15/2/023042
An integrative sparse boosting analysis of cancer genomic commonality and difference
Creators: name: Sun, Yifan
name: Sun, Zhengyang
name: Jiang, Yu
name: Li, Yang
name: Ma, Shuangge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Genomics (q-bio.GN)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: In cancer research, high-throughput profiling has been extensively conducted. In recent studies, the integrative analysis of data on multiple cancer patient groups/subgroups has been conducted. Such analysis has the potential to reveal the genomic commonality as well as difference across groups/subgroups. However, in the existing literature, methods with a special attention to the genomic commonality and difference are very limited. In this study, a novel estimation and marker selection method based on the sparse boosting technique is developed to address the commonality/difference problem. In terms of technical innovation, a new penalty and computation of increments are introduced. The proposed method can also effectively accommodate the grouping structure of covariates. Simulation shows that it can outperform direct competitors under a wide spectrum of settings. The analysis of two TCGA (The Cancer Genome Atlas) datasets is conducted, showing that the proposed analysis can identify markers with important biological implications and have satisfactory prediction and stability.
description: 13 pages
Additional file 1 of Regional differences and temporal trend analysis of Hepatitis B in Brazil
Creators: name: Grandi, Giuliano
name: Lopez, Luis Fernandez
name: Burattini, Marcelo Nascimento
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences

description: Supplementary Material 1
The Traveling Libraries of North Carolina
Creators: name: Miller, Madeline
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: This paper presents a qualitative, historical study of the characterization and doctrinal basis of the activities of the North Carolina Library Commission and its Traveling Libraries. It examines service to rural libraries and the delineation and contest between state responsibility and municipal or county responsibility for instituting public libraries.
Cyclic behavior of maxima in a hierarchical summation scheme
Creators: name: Lifshits, M. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J80

description: Let i.i.d. symmetric Bernoulli random variables be associated to the edges of a binary tree having n levels. To any leaf of the tree, we associate the sum of variables along the path connecting the leaf with the tree root. Let M_n denote the maximum of all such sums. We prove that, as n grows, the distributions of M_n approach some helix in the space of distributions. Each element of this helix is an accumulation point for the shifts of distributions of M_n.
title: Development of a digital twin based real-time drilling optimization and control system
Creators: name: Said, Mohammed Mokhtar
Publisher: name: Memorial University of Newfoundland
Year: 2022

description: The Oil and Gas industry suffers from a unique problem. The activity of the industry, and subsequently the retention of highly qualified personnel is closely tied to the oil price. Economic factors that are beyond the control of operators, govern the experience level of employees in all levels of the industry. The recent development of digital technologies presents an excellent opportunity for the industry to overcome the loss of experience accompanied by every downturn, and the increased rate of incidents accompanying every resurgence. This thesis consists of four articles discussing two different topics. These include i) developing a digital twin-based drilling optimization and control system, and ii) developing laboratory facilities for validating field scale experiments. The first article presents the theoretical development of a digital twin-based control system for drilling rigs. It starts with how the industry evolved the concepts of integrated operations, and real time support centers, and follows by how to construct the proposed digital-twin-based automation solution. The second article expands on a single component of the digital twin-based system. It discusses the development of an auto driller system based on optimal control theory. The article consists of an extensive literary review of drilling optimization, followed by developing a modified version of mechanical specific energy to be used as an objective function, development of a simple drilling model to be used as part of the controller, and development of a model predictive controller that optimizes the selection of drilling parameters. The model predictive controller was shown to be successful through simulations but had some performance limitations due to the complexity of the bit rock coupling term in the drilling model. The third and fourth articles discuss the development of a hardware in the loop drilling simulator. The articles describe the design of the system, the development of its operating systems, and experimental validation of its performance. The articles also discuss the development of Bond Graph models that were used for planning of experiments and components of the simulators control system. The thesis is concluded by recommendations on how to improve the proposed automation system and expand the capabilities of the simulator.
Target observation of complex networks
Creators: name: Sun, Yifan
name: Sun, Zhengyang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: How to observe the state of a network from a limited number of measurements has become an important issue in complex networks, engineering, communication, epidemiology, etc. Under some scenarios, it is neither unfeasible nor unnecessary to observe the entire network. Therefore, we investigate the target observation of a network in this paper. We propose a target minimal dominating set problem corresponding to target observation, which is a natural generalization of classical minimal dominating set problem. Three algorithms are proposed to approximate the minimum set of occupied nodes sufficient for target observation. Extensive numerical results on computer-generated random networks and real-world networks demonstrate that the proposed algorithms offer superior performance in identification of a target minimal dominating set.
description: 20 pages, 7 figures
Additional file 1 of Quality of life instruments in atrial fibrillation: a systematic review of measurement properties
Creators: name: Sale, Alicia
name: Yu, Jessica
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy

description: Additional file1. Appendix A: Embase search strategy for literature mapping exercise. Appendix B: Ovid MEDLINE search strategy for systematic review. Appendix C: Full results from literature mapping exercise. Appendix D: Risk of bias and measurement property appraisal results. Appendix E: Data extraction table of measurement properties.
¿Cómo ser ayudante en MetaDocencia?
Creators: name: Vazano, Irene
name: Pendino, Romina
Publisher: name: Zenodo
Year: 2021
Subjects: trabajo colaborativo
Ciencia Abierta
enseñanza

description: Invitación a participar dentro de MetaDocencia bajo el rol de ayudante.
Accuracy of visual inspection of flood defences
Creators: name: Klerk, W. J.
name: Kanning, W.
name: Kok, M.
name: Bronsveld, J.
name: Wolfert, A. R. M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Prioritisation of flood defence maintenance is typically based on visual inspection. However, literature shows that the Probability of Detection (PoD) of visual inspection can vary significantly. Here we investigate the PoD for visual inspections of flood defence structures, the consistency of damage classification, and the influence of different variables on the PoD, such as past experience. Four flood defence sections were inspected by 22 different inspectors for a variety of damage types, such as animal burrowing and damage to block revetments. It is found that the PoD varies significantly both per damage type and inspector. Additionally, the estimated severity of damages varies significantly in comparison to the reference situation: over half of the registered damages is assigned a different severity compared to the reference, which potentially leads to incorrect maintenance measures. A likely explanation for the variation in results is the complexity of inspection guidelines and task definitions. Therefore it is advised to simplify inspection guidelines and use more focussed inspections for the most important types of damage. This likely leads to both a reduction of the number of false negatives associated with an increase in flood risk, and better risk-based asset management and maintenance prioritisation in general.
Suppement
Creators: name: Liang, Lun
name: Yang, Di
name: Liu, Wen
name: Qu, Fanyao
name: Hao, Ning
name: Zhang, Ping
name: Fu, Jiyong
Publisher: name: AIP Publishing
Year: 2024
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: The file contains the valley dynamics involving momentum-dark excitons, the temperature dependence of intravalley Boltzmann factors and intervalley scattering rates, and magneto-valley dynamics of other typical TMDC monolayers.
Preliminary seismic assessment for low-rise reinforced concrete buildings including corrosion-induced deterioration
Creators: name: Chiu, Chien-Kuo
name: Sung, Hsin-Fang
name: Kao, Yu-Chuan
name: Chiou, Tsung-Chih
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The main purpose of this work is to develop a preliminary seismic assessment method for corroded low-rise reinforced concrete (RC) building structures. Additionally, the proposed method can be combined with the existing evaluation method of durability, which is used to determine the deterioration degrees of corroded RC members. In order to quantify the effect of corrosion on the ultimate shear strength of a corroded RC column, this work uses experimental data concerning corroded RC column members to verify models for predicting the mechanical behavior of a corroded RC member. Furthermore, based on the database of low-rise RC building structures in Taiwan, this work also proposes strength reduction factors for use in estimating the ultimate shear strength of corroded RC columns in a preliminary seismic assessment. Finally, this work takes two school buildings as in the case study to demonstrate the procedure for making a preliminary seismic assessment of corroded low-rise RC building structures.
Additional file 1 of Characteristics and outcome of traumatic cardiac arrest at a level 1 trauma centre over 10 years in Sweden
Creators: name: Ohlén, Daniel
name: Hedberg, Magnus
name: Martinsson, Paula
name: von Oelreich, Erik
name: Djärv, Therese
name: Jonsson Fagerlund, Malin
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Supplementary Material 1
Local-global principle for certain biquadratic normic bundles
Creators: name: Cao, Yang
name: Liang, Yongqi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G35 (Primary) 14G25, 14G05, 14D10, 14C25 (Secondary)

description: Let $X$ be a proper smooth variety having an affine open subset defined by the normic equation $N_{k(\sqrt{a},\sqrt{b})/k}({x})=Q(t_{1},...,t_{m})^{2}$ over a number field $k$. We prove that : (1) the failure of the local-global principle for zero-cycles is controlled by the Brauer group of $X$; (2) the analogue for rational points is also valid assuming Schinzel's hypothesis.
description: comments are welcome
A Brief History of Excitable Map-Based Neurons and Neural Networks
Creators: name: Girardi-Schappo, M.
name: Tragtenberg, M. H. R.
name: Kinouchi, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: This review gives a short historical account of the excitable maps approach for modeling neurons and neuronal networks. Some early models, due to Pasemann (1993), Chialvo (1995) and Kinouchi and Tragtenberg (1996), are compared with more recent proposals by Rulkov (2002) and Izhikevich (2003). We also review map-based schemes for electrical and chemical synapses and some recent findings as critical avalanches in map-based neural networks. We conclude with suggestions for further work in this area like more efficient maps, compartmental modeling and close dynamical comparison with conductance-based models.
description: 53 pages, 13 figures, submitted to Journal of Neuroscience Methods
Information resonance on the book "Опашката" by Zakhari Karabashliev: A Bibliometric Analysis (2021–2023)
Creators: name: Anton Tsenov
name: Galina Grigorova
name: Darina Karakasheva
name: Ivanka Timova
name: Paskalina Traykova
Publisher: name: Zenodo
Year: 2023
Subjects: Zakhari Karabashliev
Опашката
book as media
citation
communication management
feedback
information monitoring
information resources management

description: The purpose of this research paper is to detect, present and generalize all forms of information resonance of the book “Опашката” by Zakhari Karabashliev on this basis to test the hypothesis that the book was realized as a media. The research objectives include searching and presenting various forms of readers' feedback about the book, summarizing and visualizing data using diagrams, recapitulating the results by quantitative generalization and formulating an answer to the question whether the book has been implemented as a communication medium. The methodology includes information retrieval, information monitoring and bibliometric analysis. The summary of the results follows the algorithm for information resonance of the book in 8 phases, developed by M. Tsvetkova.  Information monitoring covers the period from 2021 to 2023. The conclusions are likely to be useful for theoretical discussions about the difference between buying a book and reading a book.

Note: Downloadable document is in Bulgarian.
description: This paper is coursework completed by the students on the Communication Management degree programme during a educational cource "Information Resources Management" at the Faculty of Journalism and Mass Communication at Sofia University St. Kliment Ohridski.
Additional file 2 of Characteristics and outcome of traumatic cardiac arrest at a level 1 trauma centre over 10 years in Sweden
Creators: name: Ohlén, Daniel
name: Hedberg, Magnus
name: Martinsson, Paula
name: von Oelreich, Erik
name: Djärv, Therese
name: Jonsson Fagerlund, Malin
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Supplementary Material 2
Non-classical two-photon interference between independent telecom light pulses converted by difference-frequency generation
Creators: name: Ikuta, Rikizo
name: Kobayashi, Toshiki
name: Kato, Hiroshi
name: Miki, Shigehito
name: Yamashita, Taro
name: Terai, Hirotaka
name: Fujiwara, Mikio
name: Yamamoto, Takashi
name: Koashi, Masato
name: Sasaki, Masahide
name: Wang, Zhen
name: Imoto, Nobuyuki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrated the Hong-Ou-Mandel (HOM) interference between two photons after visible-to-telecommunication wavelength conversion. In the experiment, we prepared a heralded single photon by using spontaneous parametric down-conversion and the other photon from a weak laser source at 780 nm. We converted the wavelength of both photons to the telecommunication wavelength of 1522 nm by using difference-frequency generation in a periodically-poled lithium niobate, and then observed the HOM interference between the photons. The observed visibility is $0.76\pm 0.12$ which clearly shows the non-classical interference of the two photons. The high-visibility interference is an important step for fiber-based quantum communications of photons generated from visible photon emitters.
description: 4 pages, 4 figures
title: Christian Leiber (Hrsg.): Schätze der Ostgoten. Eine Ausstellung der Maria Curie-Sklodowska Universität und des Landesmuseum Zamośc. Katalog zur Ausstellung im Weserrenaissance Schloß Bevern vom 25. März bis 29. Oktober 1995
Creators: name: Goßler, Norbert
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: Christian Leiber (Hrsg.): Schätze der Ostgoten. Eine Ausstellung der Maria Curie-Sklodowska Universität und des Landesmuseum Zamośc. Katalog zur Ausstellung im Weserrenaissance Schloß Bevern vom 25. März bis 29. Oktober 1995. Mit Texten von A. Kokowski, S. Hummel und H. Baron. 232 Seiten mit 125 meist farbigen Abbildungen und Kartenskizzen. Theiss Verlag. Stuttgart 1995. ISBN 3-8062-1171-X.
Gravitational collapse of a magnetized fermion gas with finite temperature
Creators: name: Gaspar, I. Delgado
name: Martinez, A. Perez
name: Sussman, Roberto A.
name: Rey, A. Ulacia
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the dynamics of a self--gravitating magnetized electron gas at finite temperature near the collapsing singularity of a Bianchi-I spacetime. Considering a general and appropriate and physically motivated initial conditions, we transform Einstein--Maxwell field equations into a complete and self--consistent dynamical system amenable for numerical work. The resulting numerical solutions reveal the gas collapsing into both, isotropic ("point-like") and anisotropic ("cigar-like") singularities, depending on the initial intensity of the magnetic field. We provide a thorough study of the near collapse behavior and interplay of all relevant state and kinematic variables: temperature, expansion scalar, shear scalar, magnetic field, magnetization and energy density. A significant qualitative difference in the behavior of the gas emerges in the temperature range $\hbox{T} sim10^{4}\hbox{K}$ and $\hbox{T}\sim 10^{7}\hbox{K}$.
description: 9 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:1211.5980
Augmented Reality In-Store Design Guidelines for Different Retail Levels
Creators: name: Parker, Christopher J.
name: Xue, Liangchao
name: Hart, Cathryn
Publisher: name: Loughborough University
Year: 2023
Subjects: Information and computing sciences
Commerce, management, tourism and services
Creative arts and writing
Engineering

description: Design guidelines for creating Augmented Reality experiences for In-Store Retail Levels, focusing on fashion.
$su(1,1)\simeq so(2,1)$ Lie Algebraic Extensions of the Mie-type Interactions with Positive Constant Curvature
Creators: name: Yesiltas, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrödinger equation in three dimensional space with constant positive curvature is studied for the Mie potential. Using analytic polynomial solutions, we have obtained whole spectrum of the corresponding system. With the aid of factorization method, ladder operators are obtained within the variable and function transformations. Using ladder operators, we have given the generators of $so(2,1)$ algebra and the Casimir operator which are related to the Mie Oscillator on the positive curvature.
description: 2 figures, 12 pages
title: Genetische Analyse auf dem mehrperiodigen Gräberfeld von Wittmar, Ldkr. Wolfenbüttel
Creators: name: Rinne, Christoph
name: Krause-Kyora, Ben
Publisher: name: University Library Heidelberg
Year: 2015

description: Das Gräberfeld von Wittmar umfasst 51 Gräber unterschiedlicher Ausrichtung, differenzierter Körperhaltung der Toten und Bandkeramischer, Stichbandkeramischer als auch Rössener Inventare. Die genetische Analyse von 34 Individuen erbrachte für sechs der Rössener Bestattungen die Bestimmung der Haplogruppe. Im Ergebnis konnten die Haplogruppen H, HV0, U5 und K festgestellt werden und deutet sich eine Kontinuität in der mütterlichen Linie der Bestatteten an. Zudem findet sich mit der Haplogruppe U5 ein Indiz für Kontakte zu mesolithisch wirtschaftenden Gruppen.
description: To investigate demographic patterns in Neolithic farming communities, we conducted a theoretic archaeological and ancient DNA approach on the cemetery of Wittmar. Genetic studies of Neolithic groups in central Europe have provided insights into the demographic processes that have occurred during the initial transition to agriculture as well as in later Neolithic contexts. While distinct genetic patterns between indigenous hunter-gatherers and Neolithic farmers in Europe have been illustrated, it remains unresolved whether and to what degree certain genetic lineages continued/discontinued or emerged/disappeared during the 5,000 year span of the Neolithic period. In order to investigate genetic patterns after the earliest farming communities, we examined thirty-four individuals from Wittmar, Germany that represents three different Neolithic farming groups including the Rössen culture. Six individuals associated with the middle Neolithic Rössen were assigned to mitochondrial haplogroups H, HV0, U5, and K. Analysis of shared lineages indicates continuity of maternal affinities from the earliest farmers at Wittmar but also reveals intriguing patterns of genetic continuity bridging the early and later Neolithic and connections with diverse groups within the broader context of Neolithic Europe.
The bending of an elastic beam by a liquid drop: A variational approach
Creators: name: Neukirch, Sebastien
name: Antkowiak, Arnaud
name: Marigo, Jean-Jacques
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the interaction of a liquid drop with an elastic beam in the case where bending effects dominate. We use a variational approach to derive equilibrium equations for the system in the presence of gravity and in the presence or absence of contact line pinning. We show that the derived equilibrium equations for the beam subsystem reveal the external forces applied on the beam by the liquid and vapor phases. Among these, the force applied at the triple line (the curve where the three phases meet) is found to lie along the liquid-vapor interface.
Diffusion of degenerate minority carriers in a p-type semiconductor
Creators: name: Weber, C. P.
name: Kittlaus, Eric A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report ultrafast transient-grating experiments on heavily p-type InP at 15 K. Our measurement reveals the dynamics and diffusion of photoexcited electrons and holes as a function of their density n in the range 2E16 to 6E17 cm-3. After the first few picoseconds the grating decays primarily due to ambipolar diffusion. While at low density we observe a regime in which the ambipolar diffusion is electron-dominated and increases rapidly with n, at high n it appears to saturate at 34 cm2/s. We present a simple calculation that reproduces the main results of our measurements as well as of previously published measurements that had shown diffusion to be a flat or decreasing function of n. By accounting for effect of density on charge susceptibility we show that, in p-type semiconductors, the regime we observe of increasing ambipolar diffusion is unique to heavy doping and low temperature, where both the holes and electrons are degenerate; in this regime the electronic and ambipolar diffusion are nearly equal. The saturation is identified as a crossover to ambipolar diffusion dominated by the majority carriers, the holes. At short times the transient-grating signal rises gradually. This rise reveals cooling of hot electrons and, at high photocarrier density, allows us to measure ambipolar diffusion of 110 cm2/s in the hot-carrier regime.
Additional file 1 of Self-perceived burden predicts lower quality of life in advanced cancer patients: the mediating role of existential distress and anxiety
Creators: name: Xiaodan, Lin
name: Guiru, Xu
name: Guojuan, Chen
name: Huimin, Xiao
Publisher: name: figshare
Year: 2022
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1.
FAIR data pipeline
Creators: name: Gonzalez-Beltran, Alejandra
Publisher: name: Zenodo
Year: 2023

description: This update is about the work we did in an interdisciplinary team, including epidemiologists, mathematical modellers, data scientists and data engineers, data policy experts, and software engineers to build an open-source FAIR data pipeline (https://www.fairdatapipeline.org,https://github.com/FAIRDataPipeline/). This work led by the Scottish Covid Response Consortium started under the auspices of the Royal Society Rapid Assistance in Modelling the Pandemic and continued with a grant from the Science and Technology Facilities Council. The objective was to build a tool supporting the annotation of data consumed by analysis, while also tracing the provenance of the scientific outputs back to the analytical or modelling source code and to the primary data. Thus, allowing us to track every step from data source to policy decision. More details about the pipeline can be found in the publication “FAIR Data Pipeline: provenance-driven data management for traceable scientific workflows” available in Philosophical Transactions of the Royal Society A available at https://doi.org/10.1098/rsta.2021.0300
QMKPy: A Python Testbed for the Quadratic Multiple Knapsack Problem
Creators: name: Besser, Karl-Ludwig
name: Jorswieck, Eduard A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Computer Science (cs.OH)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: QMKPy provides a Python framework for modeling and solving the quadratic multiple knapsack problem (QMKP). It is primarily aimed at researchers who develop new solution algorithms for the QMKP. QMKPy therefore mostly functions as a testbed to quickly implement novel algorithms and compare their results with existing ones. However, the package also already includes implementations of established algorithms for those who only need to solve a QMKP as part of their research.
description: 3 pages
Gamma Ray Bursters and Black Holes in the Gravity's Rainbow
Creators: name: Akram, Moh Vaseem
name: Bhat, Imtiyaz Ahmad
name: Aziz, Anver
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this letter, we analyze the modification to the thermodynamics of a Schwarzchild black hole and a Kerr black hole due to gravity's rainbow. The metric for these black holes will be made energy dependent. This will be done by using rainbow functions motivated from the hard spectra from gamma-ray bursters at cosmological distances. This modification of the metric by these rainbow functions will in turn modify the temperature and entropy of these black holes. We will also discuss how this effects the formation of virtual black holes.
description: 12 pages, 8 figures
Renormalization group calculations for wetting transitions of infinite order and continuously varying order. I. Local interface Hamiltonian approach
Creators: name: Indekeu, J. O.
name: Koga, K.
name: Hooyberghs, H.
name: Parry, A. O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the effect of thermal fluctuations on the wetting phase transitions of infinite order and of continuously varying order, recently discovered within a mean-field density-functional model for three-phase equilibria in systems with short-range forces and a two-component order parameter. Using linear functional renormalization group (RG) calculations within a local interface Hamiltonian approach, we show that the infinite-order transitions are robust. The exponential singularity (implying $2-α_s = \infty$) of the surface free energy excess at infinite-order wetting as well as the precise algebraic divergence (with $β_s = -1$) of the wetting layer thickness are not modified as long as $ω< 2$, with $ω$ the dimensionless wetting parameter that measures the strength of thermal fluctuations. The interface width diverges algebraically and universally (with $ν_{\perp} = 1/2$). In contrast, the non-universal critical wetting transitions of finite but continuously varying order are modified when thermal fluctuations are taken into account, in line with predictions from earlier calculations on similar models displaying weak, intermediate and strong fluctuation regimes.
description: 2 figures
title: The hoard from the Late Bronze Age at l’Étang, commune of Saint-Germain-sur-Vienne (dép. Indre-et-Loire)
Creators: name: Cordier, Gérard
Publisher: name: University Library Heidelberg
Year: 2015

description: Der Hort von Saint-Germain-sur-Vienne besteht aus Absatz-, Lappen- und Tüllenbeilen, Hohlmeißeln, viereckigen Schabern, Schwertern und Lanzenspitzen vom atlantischen Typ, Armringen der Typen Homburg, Vaudrevanges und Le Boiron, Wagenteilen sowie aus einem bronzenen Einsatzkern für eine Gussform eines Tüllenbeils. Dieses Depot wird der Jungbronzezeit zugewiesen und mit Hortfunden aus Azay-le-Rideau und Mougon (Triou) verglichen.
description: The hoard at Saint-Germain-sur-Vienne has revealed looped palstaves, winged axes, socketed axes, gouges, hog’s-back knives, swords and spearheads of Atlantic type, bracelets of the Homburg, Vaudrevanges and Le Boiron types, fragments of wagons and a bronze core for a socketed axe mould. This hoard belongs to the Late Bronze Age and can be compared with those of Azay-le-Rideau and Mougon (Triou).
Additional file 1 of Group-level comparison of brain connectivity networks
Creators: name: Pourmotahari, Fatemeh
name: Doosti, Hassan
name: Borumandnia, Nasrin
name: Tabatabaei, Seyyed Mohammad
name: Alavi Majd, Hamid
Publisher: name: figshare
Year: 2022
Subjects: subject: Statistics
subject: FOS: Mathematics

description: Additional file 1.
Statistical measurements of quantum emitters coupled to Anderson-localized modes in disordered photonic-crystal waveguides
Creators: name: Javadi, Alisa
name: Garcia, Pedro D.
name: Sapienza, Luca
name: Thyrrestrup, Henri
name: Lodahl, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optical nanostructures have proven to be meritorious for tailoring the emission properties of quantum emitters. However, unavoidable fabrication imperfections may represent a nuisance. Quite remarkably, disorder offers new opportunities since light can be efficiently confined by random multiple scattering leading to Anderson localization. Here we investigate the effect of such disorder-induced cavities on the emission dynamics of single quantum dots embedded in disordered photonic-crystal waveguides. We present time-resolved measurements of both the total emission from Anderson-localized cavities and from single emitters that are coupled to the cavities. We observe both strongly inhibited and enhanced decay rates relative to the rate of spontaneous emission in a homogeneous medium. From a statistical analysis, we report an average Purcell factor of 2 in without any control on the quantum dot - cavity detuning. By spectrally tuning individual quantum dots into resonance with Anderson-localized modes, a maximum Purcell factor of 23.8 is recorded, which lies at the onset of the strong coupling regime. The presented data quantify the potential of naturally occurring Anderson-localized cavities for controlling and enhancing the light-matter interaction strength, which is of relevance not only for cavity quantum-electrodynamics experiments but potentially also for efficient energy harvesting and controllable random lasing.
The Influence of Motion and Stress on Optical Fibers
Creators: name: Murphy, Jeremy D.
name: Hill, Gary J.
name: MacQueen, Phillip J.
name: Taylor, Trey
name: Soukup, Ian
name: Moreira, Walter
name: Cornell, Mark E.
name: Good, John
name: Anderson, Seth
name: Fuller, Lindsay
name: Lee, Hanshin
name: Kelz, Andreas
name: Rafal, Marc
name: Rafferty, Tom
name: Tuttle, Sarah
name: Vattiat, Brian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report on extensive testing carried out on the optical fibers for the VIRUS instrument. The primary result of this work explores how 10+ years of simulated wear on a VIRUS fiber bundle affects both transmission and focal ratio degradation (FRD) of the optical fibers. During the accelerated lifetime tests we continuously monitored the fibers for signs of FRD. We find that transient FRD events were common during the portions of the tests when motion was at telescope slew rates, but dropped to negligible levels during rates of motion typical for science observation. Tests of fiber transmission and FRD conducted both before and after the lifetime tests reveal that while transmission values do not change over the 10+ years of simulated wear, a clear increase in FRD is seen in all 18 fibers tested. This increase in FRD is likely due to microfractures that develop over time from repeated flexure of the fiber bundle, and stands in contrast to the transient FRD events that stem from localized stress and subsequent modal diffusion of light within the fibers. There was no measurable wavelength dependence on the increase in FRD over 350 nm to 600 nm. We also report on bend radius tests conducted on individual fibers and find the 266 microns VIRUS fibers to be immune to bending-induced FRD at bend radii of R > 10cm. Below this bend radius FRD increases slightly with decreasing radius. Lastly, we give details of a degradation seen in the fiber bundle currently deployed on the Mitchell Spectrograph (formally VIRUS-P) at McDonald Observatory. The degradation is shown to be caused by a localized shear in a select number of optical fibers that leads to an explosive form of FRD. In a few fibers, the overall transmission loss through the instrument can exceed 80%.
description: 19 pages, 22 figures
Nonthermal emission properties of the northwestern rim of supernova remnant RX J0852-4622
Creators: name: Kishishita, Tetsuichi
name: Hiraga, Junko
name: Uchiyama, Yasunobu
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The supernova remnant (SNR) RX J0852-4622 (Vela Jr., G266.6-1.2) is one of the most important SNRs for investigating the acceleration of multi-TeV particles and the origin of Galactic cosmic rays because of its strong synchrotron X-ray and TeV gamma-ray emission, which show a shell-like morphology similar to each other. Using the XMM-Newton archival data consisting of multiple pointing observations of the northwestern rim of the remnant, we investigate the spatial properties of the nonthermal X-ray emission as a function of distance from an outer shock wave. All X-ray spectra are well reproduced by an absorbed power-law model above 2 keV. It is found that the spectra show gradual softening from a photon index 2.56 in the rim region to 2.96 in the interior region. We show that this radial profile can be interpreted as a gradual decrease of the cutoff energy of the electron spectrum due to synchrotron cooling. By using a simple spectral evolution model that includes continuous synchrotron losses, the spectral softening can be reproduced with the magnetic field strength in the post-shock flow to less than several tens of uG. If this is a typical magnetic field in the SNR shell, gamma-ray emission would be accounted for by inverse Compton scattering of high-energy electrons that also produce the synchrotron X-ray emission. Future hard X-ray imaging observations with Nustar and ASTRO-H and TeV gamma-ray observations with the Cherenkov Telescope Array (CTA) will allow to us to explore other possible explanations of the systematic softening of the X-ray spectra.
description: accepted by A&A
On two classes of perturbations: Role of signs of second-order Rayleigh-Schrödinger energy corrections
Creators: name: Bhattacharyya, Kamal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We distinguish two extreme classes of perturbation problems depending on the signs of second-order energy corrections and argue why it is generally much more probable to obtain a negative value of the same for any state in the standard Rayleigh-Schrödinger perturbation theory. The classes are seen to differ in reproducing results of finite-dimensional matrix perturbations. A few related issues are also discussed, some of which are based on available analytical results.
description: 7 pages
Additional file 1 of Female gender, dissatisfaction with weight, and number of IBD related surgeries as independent risk factors for eating disorders among patients with inflammatory bowel diseases
Creators: name: Stoleru, Gianna
name: Leopold, Andrew
name: Auerbach, Amanda
name: Nehman, Shelley
name: Wong, Uni
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Full study survey.
title: A North-East Bavarian vessel and other Hallstatt settlement finds from Traun (Upper Austria)
Creators: name: Schumann, Robert
Publisher: name: University Library Heidelberg
Year: 2015

description: In den Jahren 1956-1958 wurde vom Oberösterreichischen Landesmuseum in Traun bei Linz die erste hallstattzeitliche Siedlung in Oberösterreich ausgegraben. Auch wenn große Teile des Fundmaterials und der Dokumentation die Zeit seit der Grabung nicht überdauert haben, lassen sich zahlreiche Aussagen über diese Siedlung machen. Anhand des erhaltenen Fundmaterials scheint sie vorrangig in der Stufe Ha C bestanden zu haben. Unter den Funden ist eine ein - deutig keramische Fremdform, die mit einem roten Blitzmotiv auf weißgrundigem Ton verziert wurde. Derartige Schüsseln treten fast ausschließlich im nordostbayerischen Raum auf. Anhand des Tons und der Formenkunde kann das Exemplar als eindeutiger Importfund angesprochen werden. Dieses Gefäß belegt somit Kontakte entlang der Donau, die in der älteren Eisenzeit eine prägende Verkehrs- und Kommunikationsroute war.
description: In the period between 1956 and 1958 the Oberösterreichisches Landesmuseum excavated the first Hallstatt settlement in Upper Austria. Although large parts of the find material and the documentation did not survive until today a lot can be said about this settlement. According to the remaining finds the settlement seems to belong primarily to the period Ha C. Among the objects there is a doubtlessly foreign pottery shape decorated with a red lightening motif on white clay. Such bowls appear almost exclusively in the North-East Bavarian region. Due to its fabric and typology the vessel can be clearly identified as an importation. It therefore testifies to contacts along the Danube which was an influential route of traffic and communication in the older Iron Age.
Witnessing Quantum Coherence: from solid-state to biological systems
Creators: name: Li, Che-Ming
name: Lambert, Neill
name: Chen, Yueh-Nan
name: Chen, Guang-Yin
name: Nori, Franco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Biological Physics (physics.bio-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Quantum coherence is one of the primary non-classical features of quantum systems. While protocols such as the Leggett-Garg inequality (LGI) and quantum tomography can be used to test for the existence of quantum coherence and dynamics in a given system, unambiguously detecting inherent "quantumness" still faces serious obstacles in terms of experimental feasibility and efficiency, particularly in complex systems. Here we introduce two "quantum witnesses" to efficiently verify quantum coherence and dynamics in the time domain, without the expense and burden of non-invasive measurements or full tomographic processes. Using several physical examples, including quantum transport in solid-state nanostructures and in biological organisms, we show that these quantum witnesses are robust and have a much finer resolution in their detection window than the LGI has. These robust quantum indicators may assist in reducing the experimental overhead in unambiguously verifying quantum coherence in complex systems.
description: 10 pages, 6 figures, journal paper
Cómo hacer reuniones virtuales pensadas para todas las personas
Creators: name: Rajngewerc, Mariela
name: Loto, Patricia
Publisher: name: Zenodo
Year: 2020
Subjects: accesibilidad
inclusión
equidad
enseñanza
ciencia abierta
recursos abiertos
trabajo colaborativo

description: MetaDocencia es una comunidad que tiene como fin enseñar a otros a enseñar y en el camino de la mejora continua nos dimos cuenta que en el módulo el ABC de cómo enseñar online hablábamos sobre accesibilidad y su importancia pero quizás no lo suficiente. De nuestra inquietud nació la idea de aprender más sobre buenas prácticas de accesibilidad, tanto para transmitirlas a la comunidad como también para aplicarlas a nuestro material y contenido. Como resultado surge esta primera publicación con recomendaciones para hacer que una clase sea accesible a más personas.