cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bond disorder and spinon heat transport in the $S=\tfrac{1}{2}$ Heisenberg spin chain compound Sr$_2$CuO$_3$: from clean to dirty limits
Creators: name: Mohan, A.
name: Beesetty, N. Sekhar
name: Hlubek, N.
name: Saint-Martin, R.
name: Revcolevschi, A.
name: Büchner, B.
name: Hess, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the effect of disorder on the heat transport properties of the $S=\tfrac{1}{2}$ Heisenberg chain compound Sr$_2$CuO$_3$ upon chemically substituting Sr by increasing concentrations of Ca. As Ca occupies sites outside but near the Cu-O-Cu spin chains, bond disorder, i.e. a spatial variation of the exchange interaction $J$, is expected to be realized in these chains. We observe that the magnetic heat conductivity ($κ_{\mathrm{mag}}$) due to spinons propagating in the chains is gradually but strongly suppressed with increasing amount of Ca, where the doping dependence can be understood in terms of increased scattering of spinons due to Ca-induced disorder. This is also reflected in the spinon mean free path which can be separated in a doping independent but temperature dependent scattering length due to spinon-phonon scattering, and a temperature independent but doping dependent spinon-defect scattering length. The latter spans from very large ($>$ 1300 lattice spacings) to very short ($\sim$ 12 lattice spacings) and scales with the average distance between two neighboring Ca atoms. Thus, the Ca-induced disorder acts as an effective defect within the spin chain, and the doping scheme allows to cover the whole doping regime between the clean and the dirty limits. Interestingly, at maximum impurity level we observe, in Ca-doped Sr$_2$CuO$_3$, an almost linear increase of $κ_{\mathrm{mag}}$ at temperatures above 100 K which reflects the intrinsic low temperature behavior of heat transport in a Heisenberg spin chain. These findings are quite different from that observed for the Ca-doped double spin chain compound, SrCuO$_2$, where the effect of Ca seems to saturate already at intermediate doping levels.
description: typos corrected
Ultra-high energy cosmic rays and the extragalactic gamma ray flux
Creators: name: Erlykin, A. D.
name: Wolfendale, A. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Ultra-high energy cosmic rays interacting with the radiation fields in the universe cause electromagnetic cascades resulting in a flux of extragalactic gamma rays, detectable to some 100 GeV. Recent precise measurements of the extragalactic gamma ray flux by Fermi-LAT, coupled with estimates of the background from active galactic nuclei of various types, allows limits to be set on the cascade component. By comparison with prediction and, making various assumptions, ie taking a particular model, limits can be set on the maximum energy to which ultra-high energy particle can be accelerated. If our model is correct, it is unlikely that the maximum energy is above 100 EeV, in turn, the apparent 'GZK' cut-off in the measured ultra-high energy spectrum could instead be due to a fall-off in the intrinsic emergent particle spectrum. However, it is not plausible to be dogmatic at the present time because of uncertainty in many of the parameters involved. We have used recent estimates of the range of parameters and have found that although our model has parameters in the allowable ranges the uncertainties are so large that our result is not unique, although the method is satisfactory. The result must thus, so far, be taken as an indication only.
description: 10 pages, 4 figures, to be published in Journal of the Physics G, 2014, v. 41
title: Understanding the lived experience of caregivers of children with medical complexity through Photovoice
Creators: name: Carberry, Kathleen
name: Galuban, Leah
name: Garza, Brenda
name: Bejarano, Geronimo
name: Hoyos, Maria
name: Burlsem, Michelle
name: Benschoeter, Maureen
Publisher: name: The University of Texas at Austin
Year: 2024
Subjects: subject: Photovoice
subject: children with medical complexity
subject: disability

description: This Photovoice project focuses on the lived experience of children with complex medical needs and their families. The aims of the project were to empower families to share their story through photographs. Through these photos the project team hopes to illuminate both the joys and challenges for these families in hopes of advancing change and making a world that welcomes and works for their children. From October 2023 to March 2024, twenty-nine caregivers documented their experiences and perspectives on caring for their child(ren) with complex medical needs. This booklet highlights a selection of their photos and stories. Some participants have chosen to remain anonymous. This work is part of a larger effort at Dell Children’s Comprehensive Care Clinic that aims to transform the health care system to better serve children with complex medical needs and their families. Acknowledgements The authors thank Rosalba Calleros (Texas Parent to Parent), Ivy Goldstein (Maternal and Child Health/Title V, Texas Department of State Health Services) the Dell Med Health Policy Team, and the team at the Dell Children’s Comprehensive Care Clinic for their work and insights. The authors also thank the executive team of the Value Institute for Health and Care, Elizabeth Teisberg and Scott Wallace, for their support. This project is supported by the Health Resources and Services Administration (HRSA) of the U.S. Department of Health and Human Services (HHS) as part of an award totaling $1,891,910.00 with zero percentage financed with non-governmental sources. The contents are those of the author(s) and do not necessarily represent the official views of, nor an endorsement, by HRSA, HHS, or the U.S. Government. For more information, please visit HRSA.gov.
title: Oromo Women in the Afterlives of Empire: Imperial Spatializing and Geography Guraacha
Creators: name: Bass, Madeline Jaye
Publisher: name: University of Kent
Year: 2023

description: The Oromo struggle for liberation transcends spatiotemporalities of imperialism, moves across and despite borders, and echoes with deep knowledges, even as the encroaching violence is vast and intersecting, labyrinthian in its structural forms. Oromo women struggle against global anti-Blackness as members of the African diaspora, anti-Indigeneity by the settler colonial state rulers of Ethiopia, and cisheteropatriarchy with uniquely Oromo applications. This thesis disrupts and fights narratives of domination, insisting on listening to Oromo women's stories of refusal and revitalization with a focus on spatiality; the ways that intersecting structural forms present certain positions for people in place.The thesis is positioned at the intersection of Black Studies and Critical Indigenous Studies and links the discussion to three key concepts:: Black geography, imperial spatializing, and geography guraacha. Guraacha, black in the Oromo epistemology, is beyond the skies, representing futures and pasts that are unknown and unseen. Taking black to mean that which exists outside of the capability of traditional maps, as well as Black in the racialized African diasporic community, Black geography and geography guraacha prioritize Oromo liberation and thinking outside of the colonial now. The thesis begins with a re-reading of historical narratives, moves to analyses of the Oromo archive and its meanings, discursive analysis of poetry and music, and closes with ethnographic explorations with Oromo diaspora communities in Europe. These findings reveal the need for rethinking the meanings of space- making as an artefact of imperialism with economic, political, and sociocultural implications. This thesis offers a contribution to methodological and critical theory by strengthening the connection between Indigenous epistemologies and Black geographies as practices of liberation. The resulting argument makes a case for radically reconsidering practices of building a more just and livable world.
VCIOM-SPUTNIK Poll: September 2021
Creators: name: VCIOM (Russian Public Opinion Research Center)
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: President of Russia approval (1); Prime Minister approval (1); State Duma of Russia (2); political party preference (2); mass protests (2); Internet usage (1); watch TV (1); trade unions (1); judicial system (1); Russian Orthodox church (1); personal financial situation (2); employment (2); sources of income (1); most important problems (5); rise in prices, inflation (2); Russian ruble and US dollar exchange rate fluctuations (3); unemployment (2); take out loans (2); spend or save money (1); savings (1); economic policy (1); social policy (1); foreign policy (1); direction of country (1); life satisfaction (2).
A WISE measurement of the ISW effect
Creators: name: Ferraro, Simone
name: Sherwin, Blake D.
name: Spergel, David N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Integrated Sachs-Wolfe effect (ISW) measures the decay of the gravitational potential due to cosmic acceleration and is thus a direct probe of Dark Energy. In some of the earlier studies, the amplitude of the ISW effect was found to be in tension with the predictions of the standard $Λ$CDM model. We measure the cross-power of galaxies and AGN from the WISE mission with CMB temperature data from WMAP9 in order to provide an independent measurement of the ISW amplitude. Cross-correlations with the recently released Planck lensing potential maps are used to calibrate the bias and contamination fraction of the sources, thus avoiding systematic effects that could be present when using auto-spectra to measure bias. We find an amplitude of the cross-power of $\mathcal{A} = 1.24\pm 0.47$ from the galaxies and $\mathcal{A} = 0.88 \pm 0.74$ from the AGN, fully consistent with the $Λ$CDM prediction of $\mathcal{A} =1$. The ISW measurement signal-to-noise ratio is 2.7 and 1.2 respectively, giving a combined significance close to $3 σ$. Comparing the amplitudes of the galaxy and AGN cross-correlations, which arise from different redshifts, we find no evidence for redshift evolution in Dark Energy properties, consistent with a Cosmological Constant.
description: 9 pages, 8 figures
Patient´s perception of spatial complexity in emergency spaces of a hospital in China: a method for stakeholders to improve design and management
Creators: name: He, Yiwei
name: Wang, Xinyu
name: Guo, Weihong
name: Zou, Xiaoqi
name: Ye, Yuqi
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Space Science
Medicine
Neuroscience
Biotechnology
Environmental Sciences not elsewhere classified
Science Policy

description: The focus of medical facility users has shifted from prioritizing epidemic prevention to prioritizing experience after COVID-19, particularly in the emergency department (ED) of a large-scale Chinese hospital. The current visual elements of the emergency department provide a negative perception to the patients who visit the department. The study aims to optimize the ED's spatial design by understanding how visual elements affect patients' perception of spatial complexity. The methodology involved recreating a patient's typical path through the ED using data from the hospital information system (HIS), capturing images at 70 location nodes, and calculating the fractal dimensions of these images using the box-counting method. Visual elements were categorized into eight groups, and their fractal dimensions and proportions within the images were analyzed. A breakpoint graph was developed to track changes in spatial complexity perception as patients move through the ED. Statistical analysis, including correlation and one-way ANOVA, revealed that spatial attributes and lighting conditions significantly impact spatial complexity. From the results, grouping analysis was conducted on the visual elements of the horizontal surfaces, vertical surfaces, ceiling, furniture, and vegetation. Further optimization was proposed. In conclusion, this study highlights the importance of visual elements in emergency spaces, directly influencing users' perception of spatial complexity. The relationship between spatial complexity and fractal dimension is further emphasized. Stakeholders and designers can use the findings of this study as references to make informed decisions to improve the user's experience in the healthcare-built environment.
Separable Schmidt modes of a non-separable state
Creators: name: Avella, Alessio
name: Gramegna, Marco
name: Shurupov, Alexander
name: Brida, Giorgio
name: Chekhova, Maria
name: Genovese, Marco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-photon states entangled in continuous variables such as wavevector or frequency represent a powerful resource for quantum information protocols in higher-dimensional Hilbert spaces. At the same time, there is a problem of addressing separately the corresponding Schmidt modes. We propose a method of engineering two-photon spectral amplitude in such a way that it contains several non-overlapping Schmidt modes, each of which can be filtered losslessly. The method is based on spontaneous parametric down-conversion (SPDC) pumped by radiation with a comb-like spectrum. There are many ways of producing such a spectrum; here we consider the simplest one, namely passing the pump beam through a Fabry-Perot interferometer. For the two-photon spectral amplitude (TPSA) to consist of non-overlapping Schmidt modes, the crystal dispersion dependence, the length of the crystal, the Fabry-Perot free spectral range and its finesse should satisfy certain conditions. We experimentally demonstrate the control of TPSA through these parameters. We also discuss a possibility to realize a similar situation using cavity-based SPDC.
Optimization of Chitinase Production by Bacillus sp. B26 and Its Antifungal Activity
Creators: name: Kurniawan, Edy
name: Panphon, Somrak
name: Leelakriangsak, Montira
Publisher: name: Prince of Songkla Univesity
Year: 2019

description: This study was carried out on the screening of Bacillus species isolated from marine samples for the production of chitinase and identification of the selected strain. Then fermentation parameters influencing chitinase production by the selected strain were optimized and tested its antifungal activity. Out of 83 Bacillus isolates, 14 bacterial isolates found producing chitinase characterized by clear inhibition around bacterial colonies on the colloidal chitin agar plate. Based on the chitinolytic index, five isolates were selected and tested for their antagonistic activity against pathogenic fungi. The results showed that the Bacillus sp. B26 had an antagonistic effect on Alternaria alternata TISTR 3435, Fusarium solani TISTR 3436, Mucor ruber TISTR 3006, and Penicillium chrysogenum TISTR 3554 with the percentage inhibition of 74.51, 69.49, 30.95, and 46.51, respectively. Five isolates were then tested for their ability to produce chitinase in the colloidal chitin broth medium. It was found that the Bacillus sp. B26 produced chitinase showing inhibiting activity against Fusarium solani TISTR 3436 (44.5%) and Penicillium chrysogenum TISTR 3554 (34.76%). Finally, Bacillus sp. B26 was selected for the characterization and optimization process of enzyme production. Bacillus sp. B26 showed positive results for urease production, catalase test, starch hydrolysis, and casein hydrolysis but negative results with citrate utilization, oxidase test, and Voges-Proskauer reaction. It produced acids by fermentation of sugar such as arabinose, lactose, maltose, glucose, sucrose, galactose, mannitol, and fructose. Bacillus sp. B26 could grow in medium containing 0-5 % NaCl with optimum at 2% NaCl, pH 7-8, at 37°C. Based on the 16S rRNA gene sequence, Bacillus sp. B26 had sequence similarity (99%) with Bacillus paramycoides. The composition of an optimized medium for the production of chitinase by Bacillus sp. B26 was found to be 2% of squid pen powder, 0.5% of sodium nitrate as the best additional nitrogen source and 2% of NaCl in the basal medium containing 0.05% of yeast extract, 0.1% of (NH4)2SO4, 0.03% of MgSO4•7H2O and 0.136% of KH2PO4 with initial medium pH 7. Under the optimized conditions, Bacillus sp. B26 gave a maximum chitinase activity of 6.52 U/mL/h, which was achieved after 72 h of incubation. The yield of 2.83-fold was observed as compared to the unoptimized basal medium with squid pen powder as a substrate. Antifungal activity of the obtained crude chitinase was tested against several fungal strains. It was found that the crude chitinase proved to be more effective in inhibiting the mycelial growth of F. solani TISTR 3436 (83.39%) and P. chrysogenum TISTR 3554 (80.12%).
Ultrafast separation of photo-doped carriers in Mott antiferromagnets
Creators: name: Eckstein, Martin
name: Werner, Philipp
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use inhomogeneous nonequilibrium dynamical mean-field theory to investigate the spreading of photo-excited carriers in Mott insulating heterostructures with strong internal fields. Antiferromagnetic correlations are found to affect the carrier dynamics in a crucial manner: An antiferromagnetic spin background can absorb energy from photo-excited carriers on an ultrafast timescale, thus enabling fast transport between different layers and the separation of electron and hole-like carriers, whereas in the paramagnetic state, carriers become localized in strong fields. This interplay between charge and spin degrees of freedom can be exploited to control the functionality of devices based on Mott insulating heterostructures with polar layers, e.g., for photovoltaic applications.
Thermoelectric properties of chalcopyrite type CuGaTe$_2$ and chalcostibite CuSbS$_2$
Creators: name: Gudelli, Vijay Kumar
name: Kanchana, V.
name: Vaitheeswaran, G.
name: Svane, A.
name: Christensen, N. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic and transport properties of CuGaTe$_2$, a hole-doped ternary copper based chalcopyrite type semiconductor, are studied using calculations within the Density Functional Theory and solving the Boltzmann transport equation within the constant relaxation time approximation. The electronic bandstructures are calculated by means of the full-potential linear augmented plane wave method, using the Tran-Blaha modified Becke-Johnson potential. The calculated band gap of 1.23 eV is in agreement with the experimental value of 1.2 eV. The carrier concentration- and temperature dependent thermoelectric properties of CuGaTe$_2$ are derived, and a figure of merit of $zT= 1.69$ is obtained at 950 K for a hole concentration of $3.7\cdot10^{19}$ cm$^{-3}$, in agreement with a recent experimental finding of $zT= 1.4$, confirming that CuGaTe$_2$ is a promising material for high temperature thermoelectric applications. The good thermoelectric performance of p-type CuGaTe$_2$ is associated with anisotropic transport from a combination of heavy and light bands. Also for CuSbS$_2$ (chalcostibite) a better performance is obtained for p-type than for n-type doping. The variation of the thermopower as a function of temperature and concentration suggests that CuSbS$_2$ will be a good thermoelectric material at low temperatures, similarly to the isostructural CuBiS$_2$ compound.
Biomarkers of neurodegeneration in post-traumatic stress disorder: a scoping review
Creators: name: Rajkumar, Ravi Philip
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: neurodegeneration
subject: biomarkers
subject: post-traumatic stress disorder
subject: Alzheimer's disease
subject: Parkinson's disease
subject: dementia

description: This review aims to identify potential biomarkers known to be associated with neurodegeneration in patients with PTSD based on the existing literature.
Contributions of artificial lighting sources on light pollution in Hong Kong measured through a night sky brightness monitoring network
Creators: name: Pun, Chun Shing Jason
name: So, Chu Wing
name: Leung, Wai Yan
name: Wong, Chung Fai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Light pollution is a form of environmental degradation in which excessive artificial outdoor lighting, such as street lamps, neon signs, and illuminated signboards, affects the natural environment and the ecosystem. Poorly designed outdoor lighting not only wastes energy, money, and valuable Earth resources, but also robs us of our beautiful night sky. Effects of light pollution on the night sky can be evaluated by the skyglow caused by these artificial lighting sources, through measurements of the night sky brightness (NSB). The Hong Kong Night Sky Brightness Monitoring Network (NSN) was established to monitor in detail the conditions of light pollution in Hong Kong. Monitoring stations were set up throughout the city covering a wide range of urban and rural settings to continuously measure the variations of the NSB. Over 4.6 million night sky measurements were collected from 18 distinct locations between May 2010 and March 2013. This huge dataset, over two thousand times larger than our previous survey, forms the backbone for studies of the temporal and geographical variations of this environmental parameter and its correlation with various natural and artificial factors. The concepts and methodology of the NSN were presented here, together with an analysis of the overall night sky conditions in Hong Kong. The average NSB in Hong Kong, excluding data affected by the Moon, was 16.8 mag arcsec$^{-2}$, or 82 times brighter than the dark site standard established by the International Astronomical Union (IAU). The urban night sky was on average 15 times brighter than that in a rural location, firmly establishing the effects of artificial lighting sources on the night sky.
description: uncorrected proof, 28 pages, 12 figures, accepted by JQSRT on 14 December 2013
Research Data Management Toolkit (RDMkit): guidelines for plant phenotyping data management and sharing
Creators: name: Floch, Erwan Le
name: Adam-Blondon, Anne-Françoise
name: Alic, Isabelle
name: Droesbeke, Bert
name: Dhondt, Stijn
name: Faria, Daniel
name: Beier, Sebastian
name: Neveu, Pascal
name: Francillonne, Nicolas
name: Michotey, Célia
name: Pommier, Cyril
Publisher: name: Zenodo
Year: 2022
Subjects: research data management
plant phenomics
plant phenotyping
RDMkit
FAIR data

description: Efficient sharing of plant phenotyping data is a challenge that has been addressed during the last two decades by European infrastructures (ELIXIR, EMPHASIS) and international communities (CGIAR), that allowed to coordinate the effort of major institutes developing activities in the domain. They produced consistent and interoperable sets of resources to support plant phenotyping data management:
 - data standards: Minimum Information About Plant Phenotyping Experiment (MIAPPE) and the Breeding API (BrAPI)
 - databases: PIPPA, PHIS, GnpIS, e!DAL-PGP among others
 - exchange file formats: MIAPPE Template, ISA-Tab These systems and standards have been designed to be as close as possible to researchers and experimenters needs. As a consequence, important efforts have been made to ease their adoption through documentations and trainings. However all these resources remain dispersed, and it can be complicated for new users to know where to get the right information. To address this issue, ELIXIR has developed in the frame of the ELIXIR-CONVERGE project a central portal of guidelines and resources supporting FAIR data management in Life Sciences: the Research Data Management toolkit (RDMkit). RDMkit is a one stop portal that gives a general overview and understanding of the complementarity of the solutions, and links back to the extended documentation and training materials maintained for each of them. To develop and sustain this portal, ELIXIR has engaged with various communities, infrastructures and projects, among which the ELIXIR plant science community and the AGENT project. In the RDMkit, the plant community has built a set of pages and in particular is building plant phenotyping guidelines. The present poster gives an overview of the RDMkit logic and of the solutions presented in the plant sciences pages, including the procedures and contact to submit enrichment and additional solutions.
Quantum oscillations in the kinetic energy density: Gradient corrections from the Airy gas
Creators: name: Lindmaa, A.
name: Mattsson, A. E.
name: Armiento, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We derive a closed form expression for the quantum corrections to the kinetic energy density (KED) in the Thomas-Fermi (TF) limit of a linear potential model system in three dimensions (the Airy gas). The universality of the expression is tested numerically in a number of three dimensional model systems: (i) jellium surfaces, (ii) hydrogen-like potentials, (iii) systems confined by an harmonic potential in one and (iv) all three dimensions, and (v) a system with a cosine potential (the Mathieu gas). Our results confirm that the usual gradient expansion of extended Thomas-Fermi theory (ETF) does not describe the quantum oscillations for systems that incorporate surface regions where the electron density drops off to zero. We find that the correction derived from the Airy gas is universally applicable to relevant spatial regions of systems of type (i), (ii), and (iv), but somewhat surprisingly not (iii). We discuss possible implications of our findings to the development of functionals for the kinetic energy density.
description: 15 pages, 9 figures
Broad-line region structure and kinematics in the radio galaxy 3C 120
Creators: name: Kollatschny, W.
name: Ulbrich, K.
name: Zetzl, M.
name: Kaspi, S.
name: Haas, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Broad emission lines originate in the surroundings of supermassive black holes in the centers of active galactic nuclei (AGN). One method to investigate the extent, structure, and kinematics of the BLR is to study the continuum and line profile variability in AGN. We selected the radio-loud Seyfert 1 galaxy 3C 120 as a target for this study. We took spectra with a high signal-to-noise ratio of 3C 120 with the 9.2m Hobby-Eberly Telescope between Sept. 2008 and March 2009. In parallel, we photometrically monitored the continuum flux at the Wise observatory. We analyzed the continuum and line profile variations in detail (1D and 2D reverberation mapping) and modeled the geometry of the line-emitting regions based on the line profiles. We show that the BLR in 3C 120 is stratified with respect to the distance of the line-emitting regions from the center with respect to the line widths (FWHM) of the rms profiles and with respect to the variability amplitude of the emission lines. The emission line wings of Hα and Hβ respond much faster than their central region. This is explained by accretion disk models. In addition, these lines show a stronger response in the red wings. However, the velocity-delay maps of the helium lines show a stronger response in the blue wing. Furthermore, the HeIIλ4686 line responds faster in the blue wing in contradiction to observations made one and a half years later when the galaxy was in a lower state. The faster response in the blue wing is an indication for central outflow motions when this galaxy was in a bright state during our observations. The vertical BLR structure in 3C 120 coincides with that of other AGN. We confirm the general trend: the emission lines of narrow line AGN originate at larger distances from the midplane than AGN with broader emission lines.
description: 18 pages, 25 figures, Astronomy & Astrophysics in press
MaDMP4ls, or how to better manage bioinformatics projects with MY
Creators: name: Bourhy, Konogan
name: Collin, Olivier
name: Sallou, Olivier
name: Matéo Boudet
Publisher: name: Zenodo
Year: 2022
Subjects: machine actionable
DMP
Open science
MY
DMP OPIDoR
Genouest
OPIDoR
IFB

description: This project consists in integrating Machine Actionable Plans written and hosted on DMP OPIDoR in the IFB Infrastructure through MY, allowing an easier sharing of technical information between the researcher and the IFB cluster team.
The M4 Core Project with HST --- I. Overview and First-Epoch
Creators: name: Bedin, L. R.
name: Anderson, J.
name: Heggie, D. C.
name: Piotto, G.
name: Milone, A. P.
name: Giersz, M.
name: Nascimbeni, V.
name: Bellini, A.
name: Rich, R. M.
name: Berg, M. van den
name: Pooley, D.
name: Brogaard, K.
name: Ortolani, S.
name: Malavolta, L.
name: Ubeda, L.
name: Marino, A. F.
name: .
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an overview of the ongoing Hubble Space Telescope large program GO-12911. The program is focused on the core of M4, the nearest Galactic globular cluster, and the observations are designed to constrain the number of binaries with massive companions (black holes, neutron stars, or white dwarfs) by measuring the ``wobble'' of the luminous (main-sequence) companion around the center of mass of the pair, with an astrometric precision of ~50 micro-arcseconds. The high spatial resolution and stable medium-band PSFs of WFC3/UVIS will make these measurements possible. In this work we describe: (i) the motivation behind this study, (ii) our observing strategy, (iii) the many other investigations enabled by this unique data set, and which of those our team is conducting, and (iv) a preliminary reduction of the first-epoch data-set collected on October 10, 2012.
description: 25 pages, 14 figures (9 at low resolution), 3 tables. Published in: Astronomische Nachrichten, Volume 334, Issue 10, pages 1062-1085, December 2013. http://onlinelibrary.wiley.com/doi/10.1002/asna.201311911/abstract
Fracture behavior of high-strength bolts and connections in the whole process of fire
Creators: name: Chen, Qiao
name: Jiang, Jian
name: Chen, Wei
name: Ye, Jihong
Publisher: name: figshare
Year: 2023
Subjects: Fire safety engineering
Structural engineering

description: High-strength bolts have been widely used in steel bolted connections, and fire-induced high temperatures will affect its basic mechanical properties and fracture behavior, leading to failure of the connection and even collapse of the overall structure. Tensile experiments are conducted on Grade 10.9 high-strength bolts to investigate the effect of stress triaxiality and heating history on their mechanical and fracture properties in the whole process of fire. The true stress-strain curves are obtained to determine the material properties. The SMCS fracture model is calibrated based on test results, and parametric studies are conducted on fracture performance of T-stub connections in fire. The experimental results show that the SMCS model can effectively predict the fracture behavior of Grade 10.9 high-strength bolts for a stress triaxiality range of 0.3 to 1.2. There are three failure modes of T-stub connections under different temperature histories: yield fracture of flange plate, simultaneous yield fracture of flange plate and bolt, and yield fracture of bolt.
Higher order transmission resonances in above-barrier reflection of ultra-cold atoms
Creators: name: Ishkhanyan, H. A.
name: Krainov, V. P.
name: Ishkhanyan, A. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The reflectionless transmission resonances in above-barrier reflection of Bose-Einstein condensates by the Rosen-Morse potential are considered using the mean field Gross-Pitaevskii approach. Applying an exact third order nonlinear differential equation obeyed by the condensate's density, the exact solution of the problem for the first resonance is derived. It is shown that in the nonlinear case the total transmission is possible for positive potential heights, i.e., for potential barriers. Further, it is shown that an appropriate approximation for higher-order resonances can be constructed using a limit solution of the equation for the density written as a root of a polynomial equation of the third degree. Using this limit function and the solution for the first resonance, a simple approximation for the shift of the nonlinear resonance potential's depth from the corresponding linear resonance's position is constructed for higher order resonances. The result is written as a linear function of the resonance order. This behavior notably differs from the case of the rectangular barrier for which the nonlinear shift is approximately constant for all the resonance orders.
Inclusive and pion production neutrino-nucleus cross sections
Creators: name: Martini, M.
name: Ericson, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the experimental data on the inclusive double differential cross section by neutrinos charged current, measured by T2K, with the same model which was successful for the MiniBooNE quasielastic cross sections. As in our previous analysis the multinucleon component is needed in order to reproduce the data. For the total cross section our evaluation is smaller than the SciBooNE data above 1 GeV. This indicates the opening of a new channel not included in our evaluation, presumably the two pion emission channel. We also check that our description holds for the exclusive single pion production channel by confronting our evaluation with the MiniBooNE double differential cross section for a single charged pion and the Q^2 distribution. Both are compatible with data.
EMERGEN-DB : The French database for SARS-CoV-2 genomic surveillance and research
Creators: name: Messak, Imane
name: Mohamed, Anliat
name: Antoinat, Chriara
name: Le Bars, Arthur
name: Tonazzolli, Arianna
name: Demaille, Benjamin
name: Sand, Olivier
name: Gerbes, François
name: Rosnet, Thomas
name: Bouri, Laurent
name: Seiler, Julien
name: Charrière, Nicole
name: Antoniewski, Christophe
name: Bozorgan, Anne
name: Castro Alvarez, Javier
name: Sudour, Jeanne
name: Le Strat, Yann
name: Coignard, Bruno
name: Amzert, Abdelkader
name: Gharbi, Nebras
name: Lethimonier, Franck
name: Chiapello, Hélène
name: Naouar, Naira
name: Médigue, Claudine
name: Le Corguillé, Gildas
name: Salgado, David
name: van Helden, Jacques
name: Denecker, Thomas
Publisher: name: Zenodo
Year: 2022
Subjects: SARS-CoV-2
COVID-19
EMERGEN-Bioinfo
EMERGEN-DB
genomic surveillance

description: In January 2021, the French Ministries of Health (MSS) and Research (MESRI) launched EMERGEN, a national plan for SARS-CoV-2 genomic surveillance, which aims at monitoring the evolution of the COVID-19 in France, detecting new variants and supporting the integration of viral genomic data and health data for both surveillance and research. We present two components of the EMERGEN-Bioinfo digital platform developed by the IFB (Institut Français de Bioinformatique): (a) EMERGEN-DB, the database that collects and manages non-sensitive metadata (sample collection, sequencing method, …) and consensus SARS-CoV-2 genomic sequences produced by the 55 sequencing platforms of the consortium. Developed under Django, it is equipped with both user-friendly and application programmatic interfaces (API) that currently offer over 121 entry points, enabling users to upload their data and query the database manually or in batch. EMERGEN-DB also offers numerous tools to facilitate real-time monitoring of variant evolution and expansion throughout France (alerts, etc.), data export via the APIs, data brokering services to curate and manage the metadata before submitting them to the international repositories such as GISAID and EBI-ENA, and finally data exploration and visualization (summary tables, figures, maps, …) through the interactive pages (activity, sampling, …). (b) Rtools4emergen, an R package enabling to query EMERGEN-DB, to visualize data and to automatically generate reports. To date, EMERGEN-DB collects metadata from ~64 sequencing platforms and has gathered more than 520513 records, of which 120186 were submitted to GISAID via our brokering tool.
L'algue géante Macrocystis pyrifera. Supplément à l'article 'Les iles Saint-Paul et Amsterdam, une aire marine protégée « pilote »?
Creators: name: Féral, Jean-Pierre
Publisher: name: Zenodo
Year: 2023
Subjects: Macrocystis pyrifera
iles Saint-Paul et Amsterdam
Océan Indien Sud
Changement climatique
Benthos marin

description: Supplément en ligne à l'article: Féral (J.-P.), Saucède (T.) 2023. Les iles Saint-Paul et Amsterdam, une aire marine protégée « pilote »? Espèces 47 : 24-31, DOI : 10.5281/zenodo.7682515 , 〈hal-03883056〉
description: {"references": ["F\u00e9ral (J.-P.), Sauc\u00e8de (T.) 2023. L'algue g\u00e9ante Macrocystis pyrifera. Suppl\u00e9ment \u00e0 l'article 'Les iles Saint-Paul et Amsterdam, une aire marine prot\u00e9g\u00e9e \u00ab pilote \u00bb?' Esp\u00e8ces 47, DOI : 10.5281/zenodo.7691753"]}
A rare human variant that disrupts GPR10 signalling causes weight gain in mice.
Creators: name: Talbot, Fleur
name: Feetham, Claire H
name: Mokrosiński, Jacek
name: Lawler, Katherine
name: Keogh, Julia M
name: Henning, Elana
name: Mendes De Oliveira, Edson
name: Ayinampudi, Vikram
name: Saeed, Sadia
name: Bonnefond, Amélie
name: Arslan, Mohammed
name: Yeo, Giles SH
name: Froguel, Philippe
name: Bechtold, David A
name: Adamson, Antony
name: Humphreys, Neil
name: Barroso, Inês
name: Luckman, Simon M
name: Farooqi, I Sadaf
Publisher: name: Apollo - University of Cambridge Repository
Year: 2023
Subjects: Animals
Humans
Mice
Energy Metabolism
Mice, Transgenic
Obesity
Receptors, G-Protein-Coupled
Signal Transduction
Weight Gain

description: Funder: Wellcome Trust (Wellcome); doi: https://doi.org/10.13039/100004440
description: Disruption of brain-expressed G protein-coupled receptor-10 (GPR10) causes obesity in animals. Here, we identify multiple rare variants in GPR10 in people with severe obesity and in normal weight controls. These variants impair ligand binding and G protein-dependent signalling in cells. Transgenic mice harbouring a loss of function GPR10 variant found in an individual with obesity, gain excessive weight due to decreased energy expenditure rather than increased food intake. This evidence supports a role for GPR10 in human energy homeostasis. Therapeutic targeting of GPR10 may represent an effective weight-loss strategy.
Contributions of supernovae type II & Ib/c to the galactic chemical evolution
Creators: name: Sahijpal, Sandeep
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The supernovae SN II & Ib/c make major stellar nucleosynthetic contributions to the inventories of the stable nuclides during the chemical evolution of the galaxy. A case study is performed here with the help of recently developed numerical simulations of the galactic chemical evolution in the solar neighbourhood to understand the contributions of the SN II and Ib/c by making a comparison of the stellar nucleosynthetic yields obtained by two leading groups in the field. These stellar nucleosynthetic yields differ in terms of the treatment of stellar evolution and nucleosynthesis. The formulation for the galactic chemical evolution is developed for the recently revised solar metallicity of 0.014. Further, the recent nucleosynthetic yields of the stellar models based on the revised solar metallicity are also used. The analysis suggest that it could be difficult to explain in a self-consistent manner the various features associated with the elemental evolutionary trends over the galactic timescales by any single adopted stellar nucleosynthetic model of SN II & Ib/c.
description: 22 pages, 8 figures, Research in Astronomy & Astrophysics
ПРОДОВЖЕННЯ ЖИТТЄВОГО ЦИКЛУ МАЛОТОНАЖНИХ ФЕРМЕРСЬКИХ ФУРГОНІВ
Creators: name: Popov, Stanislav
name: Федьків, Олексій
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 400202
subject: Automotive engineering materials

description: Проведено наукові дослідження, спрямовані на покращення ремонтних властивостей у напрямку обслуговування гальмівної системи малотоннажних фермерських фургонів.
On helium-dominated stellar evolution: the mysterious role of the O(He)-type stars
Creators: name: Reindl, N.
name: Rauch, T.
name: Werner, K.
name: Kruk, J. W.
name: Todt, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: About a quarter of all post-asymptotic giant branch (AGB) stars are hydrogen-deficient. Stellar evolutionary models explain the carbon-dominated H-deficient stars by a (very) late thermal pulse scenario where the hydrogen-rich envelope is mixed with the helium-rich intershell layer. Depending on the particular time at which the final flash occurs, the entire hydrogen envelope may be burned. In contrast, helium-dominated post-AGB stars and their evolution are yet not understood. A small group of very hot, helium-dominated stars is formed by O(He)-type stars. We performed a detailed spectral analysis of ultraviolet and optical spectra of four O(He) stars by means of state-of-the-art non-LTE model-atmosphere techniques. We determined effective temperatures, surface gravities, and the abundances of H, He, C, N, O, F, Ne, Si, P, S, Ar, and Fe. By deriving upper limits for the mass-loss rates of the O(He) stars, we found that they do not exhibit enhanced mass-loss. The comparison with evolutionary models shows that the status of the O(He) stars remains uncertain. Their abundances match predictions of a double helium white dwarf merger scenario, suggesting that they might be the progeny of the compact and of the luminous helium-rich sdO-type stars. The existence of planetary nebulae that do not show helium enrichment around every other O(He) star, precludes a merger origin for these stars. These stars must have formed in a different way, for instance via enhanced mass-loss during their post-AGB evolution or a merger within a common-envelope (CE) of a CO-WD and a red giant or AGB star. A helium-dominated stellar evolutionary sequence exists, that may be fed by different types of mergers or CE scenarios. It appears likely, that all these pass through the O(He) phase just before they become white dwarfs.
description: 29 pages, 27 figures, accepted for publication in A&A
Multiscale Dictionary Learning for Estimating Conditional Distributions
Creators: name: Petralia, Francesca
name: Vogelstein, Joshua
name: Dunson, David B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Nonparametric estimation of the conditional distribution of a response given high-dimensional features is a challenging problem. It is important to allow not only the mean but also the variance and shape of the response density to change flexibly with features, which are massive-dimensional. We propose a multiscale dictionary learning model, which expresses the conditional response density as a convex combination of dictionary densities, with the densities used and their weights dependent on the path through a tree decomposition of the feature space. A fast graph partitioning algorithm is applied to obtain the tree decomposition, with Bayesian methods then used to adaptively prune and average over different sub-trees in a soft probabilistic manner. The algorithm scales efficiently to approximately one million features. State of the art predictive performance is demonstrated for toy examples and two neuroscience applications including up to a million features.
Computation of eigenvalue sensitivity to base flow modifications in a discrete framework: Application to open-loop control
Creators: name: Mettot, Clément
name: Renac, Florent
name: Sipp, Denis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A fully discrete formalism is introduced to perform stability analysis of a turbulent compressible flow whom dynamics is modeled with the Reynolds-Averaged Navier-Stokes (RANS) equations. The discrete equations are linearized using finite differences and the Jacobian is computed using repeated evaluation of the residuals. Stability of the flow is assessed solving an eigenvalue problem. The sensitivity gradients which indicate regions of the flow where a passive control device could stabilize the unstable eigenvalues are defined within this fully discrete framework. Second order finite differences are applied to the discrete residual to compute the gradients. In particular, the sensitivity gradients are shown to be linked to the Hessian of the RANS equations. The introduced formalism and linearization method are generic: the code used to evaluate the residual of the RANS equations can be used in a black box manner, and the complex linearization of the Hessian is avoided. The method is tested on a two dimensional deep cavity case, the flow is turbulent with a Reynolds number equal to 860 000 and compressible with a Mach number of 0.8. Several turbulence models and numerical schemes are used to validate the method. Physical features of the flow are recovered, such as the fundamental frequency of the natural flow as well as acoustic mechanisms, suggesting the validity of the method. The sensitivity gradients are then computed and validated, the error in predicting the eigenvalue variation being found less than 3\%. Control maps using a small steady control device are finally obtained, indicating that the control area should be chosen in the vicinity of the leading edge of the cavity.