cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Antibody Immunity to Zika Virus among Young Children in a Flavivirus-Endemic Area in Nicaragua
Creators: name: Espinoza, Daniel O.
name: Bucardo, Filemón
name: Collins, Matthew H.
name: de Silva, Aravinda M.
name: Becker-Dreps, Sylvia
name: Zepeda, Omar
name: Bowman, Natalie M.
name: Stringer, Elizabeth M.
name: Premkumar, Lakshmanane
name: Cross, Kaitlyn A.
name: Martinez, Evelin
Publisher: name: MDPI
Year: 2023

description: Objective: To understand the dynamics of Zika virus (ZIKV)-specific antibody immunity in children born to mothers in a flavivirus-endemic region during and after the emergence of ZIKV in the Americas. Methods: We performed serologic testing for ZIKV cross-reactive and type-specific IgG in two longitudinal cohorts, which enrolled pregnant women and their children (PW1 and PW2) after the beginning of the ZIKV epidemic in Nicaragua. Quarterly samples from children over their first two years of life and maternal blood samples at birth and at the end of the two-year follow-up period were studied. Results: Most mothers in this dengue-endemic area were flavivirus-immune at enrollment. ZIKV-specific IgG (anti-ZIKV EDIII IgG) was detected in 82 of 102 (80.4%) mothers in cohort PW1 and 89 of 134 (66.4%) mothers in cohort PW2, consistent with extensive transmission observed in Nicaragua during 2016. ZIKV-reactive IgG decayed to undetectable levels by 6–9 months in infants, whereas these antibodies were maintained in mothers at the year two time point. Interestingly, a greater contribution to ZIKV immunity by IgG3 was observed in babies born soon after ZIKV transmission. Finally, 43 of 343 (13%) children exhibited persistent or increasing ZIKV-reactive IgG at ≥9 months, with 10 of 30 (33%) tested demonstrating serologic evidence of incident dengue infection. Conclusions: These data inform our understanding of protective and pathogenic immunity to potential flavivirus infections in early life in areas where multiple flaviviruses co-circulate, particularly considering the immune interactions between ZIKV and dengue and the future possibility of ZIKV vaccination in women of childbearing potential. This study also shows the benefits of cord blood sampling for serologic surveillance of infectious diseases in resource-limited settings.
Normalizing salt content by mixing native human airway mucus samples normalizes sample rheology
Creators: name: Arora H.
name: Ghio A.
name: Kumar P.A.
name: Kissner W.J.
name: Bacudio L.G.
name: Plott L.M.
name: Hibbard J.E.
name: Hill D.B.
name: Markovetz M.R.
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Across the globe, millions of people are affected by muco-obstructive pulmonary diseases like cystic fibrosis, asthma, and chronic obstructive pulmonary disease. In MOPDs, the airway mucus becomes hyperconcentrated, increasing viscoelasticity and impairing mucus clearance. Research focused on treatment of MOPDs requires relevant sources of airway mucus both as a control sample type and as a basis for manipulation to study the effects of additional hyperconcentration, inflammatory milieu, and biofilm growth on the biochemical and biophysical properties of mucus. Endotracheal tube mucus has been identified as a prospective source of native airway mucus given its several advantages over sputum and airway cell culture mucus such as ease of access and in vivo production that includes surface airway and submucosal gland secretions. Still, many ETT samples suffer from altered tonicity and composition from either dehydration, salivary dilution, or other contamination. Herein, the biochemical compositions of ETT mucus from healthy human subjects were determined. Samples were characterized in terms of tonicity, pooled, and restored to normal tonicity. Salt-normalized ETT mucus exhibited similar concentration-dependent rheologic properties as originally isotonic mucus. This rheology agreed across spatial scales and with previous reports of the biophysics of ETT mucus. This work affirms previous reports of the importance of salt concentration on mucus rheology and presents methodology to increase yield native airway mucus samples for laboratory use and manipulation.
Integral-Field Stellar and Ionized Gas Kinematics of Peculiar Virgo Cluster Spiral Galaxies
Creators: name: Cortés, J. R.
name: Kenney, J. D. P.
name: Hardy, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the stellar and ionized gas kinematics of 13 bright peculiar Virgo cluster galaxies observed with the DensePak Integral Field Unit at the WIYN 3.5-meter telescope, to seek kinematic evidence that these galaxies have experienced gravitational interactions or gas stripping. 2-Dimensional maps of the stellar velocity $V$, and stellar velocity dispersion $σ$ and the ionized gas velocity (H$β$ and/or [\ion{O}{3}]) are presented for galaxies in the sample. The stellar rotation curves and velocity dispersion profiles are determined for 13 galaxies, and the ionized gas rotation curves are determined for 6 galaxies. Misalignments between the optical and kinematical major axis are found in several galaxies. While in some cases this is due to a bar, in other cases it seems associated with a gravitational interaction or ongoing ram pressure stripping. Non-circular gas motions are found in nine galaxies, with various causes including bars, nuclear outflows, or gravitational disturbances. Several galaxies have signatures of kinematically distinct stellar components, which are likely signatures of accretion or mergers. We compute for all galaxies the angular momentum parameter $λ_{\rm R}$. An evaluation of the galaxies in the $λ_{\rm R}$-ellipticity plane shows that all but 2 of the galaxies have significant support from random stellar motions, and have likely experienced gravitational interactions. This includes some galaxies with very small bulges and truncated/compact H$α$ morphologies, indicating that such galaxies cannot be fully explained by simple ram pressure stripping, but must have had significant gravitational encounters. Most of the sample galaxies show evidence for ICM-ISM stripping as well as gravitational interactions, indicating that the evolution of a significant fraction of cluster galaxies is likely strongly impacted by both effects.
description: 45 pages, 14 figures, ApJS accepted, emulateapj version
Invention of 3Mint for feature grouping and scoring in multi-omics
Creators: name: Bakir-Gungor, Burcu
name: Yousef, Malik
name: Zou, Fei
name: Unlu Yazici, Miray
name: Marron, J. S.
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Advanced genomic and molecular profiling technologies accelerated the enlightenment of the regulatory mechanisms behind cancer development and progression, and the targeted therapies in patients. Along this line, intense studies with immense amounts of biological information have boosted the discovery of molecular biomarkers. Cancer is one of the leading causes of death around the world in recent years. Elucidation of genomic and epigenetic factors in Breast Cancer (BRCA) can provide a roadmap to uncover the disease mechanisms. Accordingly, unraveling the possible systematic connections between-omics data types and their contribution to BRCA tumor progression is crucial. In this study, we have developed a novel machine learning (ML) based integrative approach for multi-omics data analysis. This integrative approach combines information from gene expression (mRNA), microRNA (miRNA) and methylation data. Due to the complexity of cancer, this integrated data is expected to improve the prediction, diagnosis and treatment of disease through patterns only available from the 3-way interactions between these 3-omics datasets. In addition, the proposed method bridges the interpretation gap between the disease mechanisms that drive onset and progression. Our fundamental contribution is the 3 Multi-omics integrative tool (3Mint). This tool aims to perform grouping and scoring of groups using biological knowledge. Another major goal is improved gene selection via detection of novel groups of cross-omics biomarkers. Performance of 3Mint is assessed using different metrics. Our computational performance evaluations showed that the 3Mint classifies the BRCA molecular subtypes with lower number of genes when compared to the miRcorrNet tool which uses miRNA and mRNA gene expression profiles in terms of similar performance metrics (95% Accuracy). The incorporation of methylation data in 3Mint yields a much more focused analysis. The 3Mint tool and all other supplementary files are available at https://github.com/malikyousef/3Mint/.
MPEC 2023-U89 : 2020 KG54
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Aether-quasi-dilaton massive gravity
Creators: name: Kazempour, Sobhan
name: Akbarieh, Amin Rezaei
name: Saridakis, Emmanuel N
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Although quasi-dilaton massive gravity is a well-defined gravitational theory, it exhibits instabilities and suffers from the strong coupling problem. In this work we construct an extension of the theory, through the inclusion of the aether field. Focusing on flat Friedmann-Lemaitre-Robertson-Walker geometry, we show the existence of exact, self-accelerating solutions at the background level, characterized by an effective cosmological constant arising from the graviton mass. Additionally, we perform a detailed perturbation analysis, investigating separately the tensor, vector, and scalar perturbations, extracting the dispersion relation of gravitational waves, and determining the stability conditions for vector and scalar sectors. As we show, there are always regions in the parameter space in which the obtained solutions are free from ghost instabilities, as well as from the strong coupling problem. Hence, although the aether field does not play an important role in the background self-accelerating solutions, it does play a crucial role in the alleviation of the perturbation-related problems of the simple quasi-dilaton massive gravity.
description: version to appear in Phys.Rev.D
Age of View: A New Metric for Evaluating Heterogeneous Information Fusion in Vehicular Cyber-Physical Systems
Creators: name: Xu, Xincao
name: Liu, Kai
name: Zhang, Qisen
name: Jiang, Hao
name: Xiao, Ke
name: Luo, Jiangtao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Heterogeneous information fusion is one of the most critical issues for realizing vehicular cyber-physical systems (VCPSs). This work makes the first attempt at quantitatively measuring the quality of heterogeneous information fusion in VCPS by designing a new metric called Age of View (AoV). Specifically, we derive a sensing model based on a multi-class M/G/1 priority queue and a transmission model based on Shannon theory. On this basis, we formally define AoV by modeling the timeliness, completeness, and consistency of the heterogeneous information fusion in VCPS and formulate the problem aiming to minimize the system's average AoV. Further, we propose a new solution called Multi-agent Difference-Reward-based deep reinforcement learning with a Greedy Bandwidth Allocation (MDR-GBA) to solve the problem. In particular, each vehicle acts as an independent agent and decides the sensing frequencies and uploading priorities of heterogeneous information. Meanwhile, the roadside unit (RSU) decides the Vehicle-to-Infrastructure (V2I) bandwidth allocation for each vehicle based on a greedy scheme. Finally, we build the simulation model and compare the performance of the proposed solution with state-of-the-art algorithms. The experimental results conclusively demonstrate the significance of the new metric and the superiority of the proposed solution.
Passive quenching, signal shapes, and space charge effects in SPADs and SiPMs
Creators: name: Windischhofer, Philipp
name: Riegler, Werner
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In this report we study the dynamics of passive quenching in a single-photon avalanche diode. Our discussion is based on a microscopic description of the electron-hole avalanche coupled to the equivalent circuit of the device, consisting of the quench resistor and the junction capacitance. Analytic expressions for the resulting signal shape are derived from this model for simple electric field configurations, and efficient numerical prescriptions are given for realistic device geometries. Space charge effects arising from the avalanche are included using simulations. They are shown to distort the signal shape, but alter neither its basic characteristics nor the underlying quenching mechanism.
FORMULATION AND EVALUATION OF CONTROLLED RELEASE TABLETS  OF PERINDOPRIL ERBUMINE
Creators: name: V. Sreenu,  Devara Raj kumar
Publisher: name: Zenodo
Year: 2023

description: Perindopril Erbumine (PE) is an ACE inhibitor. It is effective in the treatment of Hypertension and Blood pressure, has a half-life 0.8-1 h and oral bioavailability is < 60 %. The objectives of the present research work are to formulate and evaluate controlled matrix tablets containing Perindopril Erbumine (PE) as a drug using different ratios of polymers to avoid hepatic first pass metabolism and to increase bioavailability of the drug. Different matrix carriers' hydroxy methyl cellulose (HPMC) K100M, Xanthan gum, Micro Crystalline Cellulose, Poly Vinyl Pyrrolidone like were used to develop matrix tablets. Various pre-compression characteristics of the powder bed like bulk density, tapped density, compressibility index, and repose angle were evaluated and studied. Matrix tablets were compressed and were all assessed for weight variation, hardness, thickness, friability, swelling index, in vitro release of the drug. The conditions were simulated and sink conditions were maintained. Further stability studies of the Perindopril Erbumine formulation F9 conducted according to ICH guidelines at 40 ±20 °C and 75 ±5% RH for a period of 90 days.
Keywords: Perindopril Erbumine, Hypertension, Matrix carriers, Stability studies.
A search for diffuse bands in fullerene planetary nebulae: evidence of diffuse circumstellar bands
Creators: name: Diaz-Luis, J. J.
name: Garcia-Hernandez, D. A.
name: Rao, N. Kameswara
name: Manchado, A.
name: Cataldo, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Large fullerenes and fullerene-based molecules have been proposed as carriers of diffuse interstellar bands (DIBs). The recent detection of the most common fullerenes (C60 and C70) around some planetary nebulae (PNe) now enable us to study the DIBs towards fullerene-rich space environments. We search DIBs in the optical spectra towards three fullerene-containing PNe (Tc 1, M 1-20, and IC 418). Special attention is given to DIBs which are found to be unusually intense towards these fullerene sources. In particular, an unusually strong 4428A absorption feature is a common charateristic of fullerene PNe. Similar to Tc 1, the strongest optical bands of neutral C60 are not detected towards IC 418. Our high-quality (S/N > 300) spectra for PN Tc 1, together with its large radial velocity, permit us to search for the presence of diffuse bands of circumstellar origin, which we refer to as diffuse circumstellar bands (DCBs). We report the first tentative detection of two DCBs at 4428 and 5780 A in the fullerene-rich circumstellar environment around the PN Tc 1. Laboratory and theoretical studies of fullerenes in their multifarious manifestations (carbon onions, fullerene clusters, or even complex species formed by fullerenes and other molecules like PAHs or metals) may help solve the mystery of some of the diffuse band carriers.
description: Accepted for publication in Astronomy & Astrophysics (16 pages, 10 figures, and 7 Tables); final version (changes regarding PN M 1-20 and language corrected)
Development of a broadly active influenza intranasal vaccine adjuvanted with self-assembled particles composed of mastoparan-7 and CpG
Creators: name: Ross, Ted M.
name: Abraham, Soman N.
name: Carlock, Michael A.
name: Roque, John A.
name: Hendy, Dylan A.
name: Ontiveros-Padilla, Luis
name: Stiepel, Rebeca T.
name: Batty, Cole J.
name: Pena, Erik S.
name: Ainslie, Kristy M.
name: Staats, Herman F.
name: Simpson, Sean R.
name: Bachelder, Eric M.
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Currently licensed vaccine adjuvants offer limited mucosal immunity, which is needed to better combat respiratory infections such as influenza. Mast cells (MCs) are emerging as a target for a new class of mucosal vaccine adjuvants. Here, we developed and characterized a nanoparticulate adjuvant composed of an MC activator [mastoparan-7 (M7)] and a TLR ligand (CpG). This novel nanoparticle (NP) adjuvant was co-formulated with a computationally optimized broadly reactive antigen (COBRA) for hemagglutinin (HA), which is broadly reactive against influenza strains. M7 was combined at different ratios with CpG and tested for in vitro immune responses and cytotoxicity. We observed significantly higher cytokine production in dendritic cells and MCs with the lowest cytotoxicity at a charge-neutralizing ratio of nitrogen/phosphate = 1 for M7 and CpG. This combination formed spherical NPs approximately 200 nm in diameter with self-assembling capacity. Mice were vaccinated intranasally with COBRA HA and M7-CpG NPs in a prime–boost–boost schedule. Vaccinated mice had significantly higher antigen-specific antibody responses (IgG and IgA) in serum and mucosa compared with controls. Splenocytes from vaccinated mice had significantly increased cytokine production upon antigen recall and the presence of central and effector memory T cells in draining lymph nodes. Finally, co-immunization with NPs and COBRA HA induced influenza H3N2-specific HA inhibition antibody titers across multiple strains and partially protected mice from a challenge against an H3N2 virus. These results illustrate that the M7-CpG NP adjuvant combination can induce a protective immune response with a broadly reactive influenza antigen via mucosal vaccination.
Importance of receptor geometry for initiation of signalling by the mincle family of glycan-binding receptors
Creators: name: Liu, Yu
Publisher: name: Imperial College London
Year: 2022

description: Mincle family receptors bind oligosaccharide ligands through extracellular carbohydrate-recognition domains (CRDs) and initiate intracellular signalling by interacting with the common Fc receptor γ subunit (FcRγ). Mincle and dectin-2 stimulate macrophages in response to pathogen binding, while blood dendritic cell antigen 2 (BDCA-2) modulates cytokine production. The oligomeric states of these mincle family receptors and the orientations of their CRDs have been investigated to elucidate how extracellular ligand binding initiates cytosolic signalling. Chemical crosslinking and introduction and deletion of cysteine residues have been used to show that dimers of mincle in transfected mammalian cells are stabilized by disulfide bonds between cysteine residues in the neck sequence that links the CRD to the membrane. BDCA-2 forms noncovalent dimers in the absence of a neck-region cysteine residue, although a naturally occurring variant can form an interchain disulfide bond. Cysteine residues in the transmembrane portions of these receptors do not form disulfide bonds and are not required for dimer formation or association with FcRγ, but may facilitate trafficking to the cell surface. To investigate how CRDs are positioned in receptor dimers, bacterial expression systems were developed to produce extracellular domain dimers. Fusion to N-terminal dimerization domains in place of the transmembrane domain was used to improve dimerization efficiency. This approach was used to create disulfide-linked mincle extracellular domain dimers and noncovalently linked extracellular domain dimers of dectin-2 and BDCA-2. Analysis of these constructs, as well as existing crystal structures of the CRDs from these proteins and extended versions of the extracellular domain of BDCA-2, showed that there is only limited interaction of the CRDs in the dimers, but interactions can be stabilized by the presence of the neck region. The resulting orientation of sugar-binding sites in the dimers would favour crosslinking of multiple dimers by oligosaccharide ligands, causing clustering of FcRγ to initiate signalling.
Can accreting primordial black holes explain the excess radio background?
Creators: name: Acharya, Sandeep Kumar
name: Dhandha, Jiten
name: Chluba, Jens
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The excess radio background seen at $\simeq 0.1-10\,{\rm GHz}$ has stimulated much scientific debate in the past years. Recently, it was pointed out that the soft photon emission from accreting primordial black holes may be able to explain this signal. We show that the expected ultraviolet photon emission from these accreting black holes would ionize the universe completely at $z>6$ and thus wash out the 21 cm absorption signature at $z\simeq$ 20 as well as be in tension with existing cosmic microwave background anisotropy and average spectral distortion limits. We discuss possible augmentations of the model; however, it seems that an explanation of radio excess by accreting primordial black holes is not well-justified.
description: Accepted version
Analysis and calibration techniques for superconducting resonators
Creators: name: Cataldo, Giuseppe
name: Wollack, Edward J.
name: Barrentine, Emily M.
name: Brown, Ari D.
name: Moseley, Samuel H.
name: U-Yen, Kongpop
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A method is proposed and experimentally explored for in-situ calibration of complex transmission data for superconducting microwave resonators. This cryogenic calibration method accounts for the instrumental transmission response between the vector network analyzer reference plane and the device calibration plane. Once calibrated, the observed resonator response is analyzed in detail by two approaches. The first, a phenomenological model based on physically realizable rational functions, enables the extraction of multiple resonance frequencies and widths for coupled resonators without explicit specification of the circuit network. In the second, an ABCD-matrix representation for the distributed transmission line circuit is used to model the observed response from the characteristic impedance and propagation constant. When used in conjunction with electromagnetic simulations, the kinetic inductance fraction can be determined with this method with an accuracy of 2%. Datasets for superconducting microstrip and coplanar-waveguide resonator devices were investigated and a recovery within 1% of the observed complex transmission amplitude was achieved with both analysis approaches. The experimental configuration used in microwave characterization of the devices and self-consistent constraints for the electromagnetic constitutive relations for parameter extraction are also presented.
description: 12 pages, 4 figures
General Relativistic White Dwarfs and Their Astrophysical Implications
Creators: name: Boshkayev, Kuantay
name: Rueda, Jorge A.
name: Ruffini, Remo
name: Siutsou, Ivan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider applications of general relativistic uniformly-rotating white dwarfs to several astrophysical phenomena related to the spin-up and the spin-down epochs and to delayed type Ia supernova explosions of super-Chandrasekhar white dwarfs, where we estimate the "spinning down" lifetime due to magnetic-dipole braking. In addition, we describe the physical properties of Soft Gamma Repeaters and Anomalous X-Ray Pulsars as massive rapidly-rotating highly-magnetized white dwarfs. Particularly we consider one of the so-called low-magnetic-field magnetars SGR 0418+5729 as a massive rapidly-rotating highly-magnetized white dwarf and give bounds for the mass, radius, moment of inertia, and magnetic field by requiring the general relativistic uniformly-rotating configurations to be stable.
description: 13 pages, 4 figures. arXiv admin note: text overlap with arXiv:1204.2070
Topological Superconductor from the Quantum Hall Phase: Effective Field Theory Description
Creators: name: Gomes, M.
name: Gomes, Pedro R. S.
name: Raimundo, K.
name: Santos, Rodrigo Corso B.
name: da Silva, A. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive low-energy effective field theories for the quantum anomalous Hall and topological superconducting phases. The quantum Hall phase is realized in terms of free fermions with nonrelativistic dispersion relation, possessing a global $U(1)$ symmetry. We couple this symmetry with a background gauge field and compute the effective action by integrating out the gapped fermions. In spite of the fact that the corresponding Dirac operator governing the dynamics of the original fermions is nonrelativistic, the leading contribution in the effective action is a usual Abelian $U(1)$ Chern-Simons term. The proximity to a conventional superconductor induces a pairing potential in the quantum Hall state, favoring the formation of Cooper pairs. When the pairing is strong enough, it drives the system to a topological superconducting phase, hosting Majorana fermions. Even though the continuum $U(1)$ symmetry is broken down to a $\mathbb{Z}_2$ one, we can forge fictitious $U(1)$ symmetries that enable us to derive the effective action for the topological superconducting phase, also given by a Chern-Simons theory. To eliminate spurious states coming from the artificial symmetry enlargement, we demand that the fields in the effective action are $O(2)$ instead of $U(1)$ gauge fields. In the $O(2)$ case we have to sum over the $\mathbb{Z}_2$ bundles in the partition function, which projects out the states that are not $\mathbb{Z}_2$ invariants. The corresponding edge theory is the $U(1)/\mathbb{Z}_2$ orbifold, which contains Majorana fermions in its operator content.
description: 40 pages, 5 figures, journal version
Acquisition of audiovisual Scientific Technical Information from OSGeo by TIB Hannover: A work in progress report
Creators: name: Löwe, Peter
name: Plank, Margret
name: Marín-Arraiza, Paloma
Publisher: name: Delaware : Open Source Geospatial Foundation
Year: 2015
Subjects: subject: Audiovisual content
subject: digital object identifiers
subject: citation
subject: OSGeo
subject: preservation
subject: semantic web
subject: 550

description: This paper gives a work in progress report on the application of the TIB|AV Portal for audiovisual OSGeo content. The portal is a web-based platform for audiovisual media combining state-of-the art multimedia analysis with semantic based analysis, and retrieval. It meets the requirements by special libraries for reliable long term preservation, scientific citation via persistent identifiers, and applies metadata enhancement to enable innovative services for search and retrieval.
Predicting results of the Research Excellence Framework using departmental $h$-Index
Creators: name: Mryglod, Olesya
name: Kenna, Ralph
name: Holovatch, Yurij
name: Berche, Bertrand
Publisher: name: arXiv
Year: 2014
Subjects: subject: Digital Libraries (cs.DL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We compare estimates for past institutional research performances coming from two bibliometric indicators to the results of the UK's Research Assessment Exercise which last took place in 2008. We demonstrate that a version of the departmental h-index is better correlated with the actual results of that peer-review exercise than a competing metric known as the normalised citation-based indicator. We then determine the corresponding h-indices for 2008-2013, the period examined in the UK's Research Excellence Framework (REF) 2014. We place herewith the resulting predictions on the arXiv in advance of the REF results being published (December 2014). These may be considered as unbiased predictions of relative performances in that exercise. We will revisit this paper after the REF results are available and comment on the reliability or otherwise of these bibliometrics as compared with peer review.
description: 13 pages, 3 figures, accepted for publication in Scientometrics
Identifying and clustering the Personal Knowledge Management (PKM) systems
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: This paper aims to identify and cluster the Personal Knowledge Management (PKM) systems. To achieve this objective, survey research method was used. In the first phase, 47 systems were identified based on the literature. Then, in the second phase, thirty intentionally selected experts from computer science and information and knowledge science clustered the identified systems in to seven clusters including knowledge retrieving, knowledge evaluating, knowledge originating, knowledge analyzing, knowledge collaborating, knowledge presenting and knowledge securing. Also, these systems are clustered by experts due to the three private, public and interactive domains.
What is in a Name: Defining -High Entropy- Oxides
Creators: name: Brahlek, Matthew
name: Gazda, Maria
name: Keppens, Veerle
name: Mazza, Alessandro R.
name: McCormack, Scott J.
name: Mielewczyk-Gryń, Aleksandra
name: Musico, Brianna
name: Page, Katharine
name: Rost, Christina
name: Sinnott, Susan B.
name: Toher, Cormac
name: Ward, Thomas Z.
name: Yamamoto, Ayako
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: High entropy oxides are emerging as an exciting new avenue to design highly tailored functional behaviors that have no traditional counterparts. Study and application of these materials are bringing together scientists and engineers from physics, chemistry, and materials science. The diversity of each of these disciplines comes with perspectives and jargon that may be confusing to those outside of the individual fields, which can result in miscommunication of important aspects of research. In this perspective, we provide examples of research and characterization taken from these different fields to provide a framework for classifying the differences between compositionally complex oxides, high entropy oxides, and entropy stabilized oxides, which is intended to bring a common language to this emerging area. We highlight the critical importance of understanding a materials crystallinity, composition, and mixing length scales in determining its true definition.
Identifying the effective factor of knowledge sharing system acceptance from knowledge workers perspective
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: Today we are seeing the rapid changes and complexity intensity of environment. In such conditions, creating competitive advantages requires the new kind of organizations that can create and manage knowledge. Sharing knowledge causes competitive advantages by reducing the costs and increasing the quality. Considering this fact that the knowledge sharing system success depends on what it is accepted and used by knowledge workers, thus it is important to identify the factors influencing knowledge sharing acceptance from knowledge workers perspective. So, in this research, the effect of managerial, technical and human factors on knowledge sharing information systems acceptance has been assessed by a structural model. A questionnaire was set in 34 question to conduct field studies on selected factors, which was confirmed by experts. Then it was distributed to collect data among knowledge workers in Tehran organizations that had implemented knowledge sharing system. The collected data was analyzed by correlation test, Freidman test and path analysis. The path analysis showed that effort expectancy, performance expectancy,  senior management support, motivation, staff involvement, training and social influence have positive and direct effect on intension to use system and intension to use system also has direct and positive effect on real use of system. Facilitating condition has direct and positive effect on real use of system. Friedman test indicated that the effective factors in order of priority and importance are: performance expectancy, effort expectancy, training, social influence, staff involvement, senior management support and motivation.
Racial differences in the associations between adiposity, placental growth hormone and inflammatory cytokines in pregnant women
Creators: name: Short, Sarah J.
name: Ghobrial, Verina
name: Williams, Camille Y.
name: Wylie, Amanda
name: Coe, Christopher L.
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Background The prevalence of obesity among women of child-bearing age has contributed to an increased risk of pregnancy complications with a disproportional impact on women of lower socioeconomic status and among certain racial groups. In particular, socio-demographic and historical factors have resulted in higher rates of premature births and small-for-gestational age infants among Black women, which may be associated with placental function during pregnancy. The current study investigated the influence of maternal pre-pregnancy adiposity and race on the associations between inflammatory proteins, placental growth hormone (PGH), and infant birthweight. This information was collected for a subsample of 109 participants (Black, n = 39 vs. White, n = 70) from the Brain and Early Experiences (BEE) study. Methods Serum samples were acquired late in the second trimester to assess PGH levels, C-reactive protein (CRP), interleukin 6 (IL-6), interleukin 8 (IL-8), and interleukin-1 receptor antagonist (IL-1Ra). Participant questionnaire responses provided information on pre-pregnancy BMI, health, race, educational attainment, and infant birthweight. Bivariate correlations and multiple linear regression models were utilized to evaluate associations by race between preconception adiposity, inflammatory markers and PGH. Results After controlling for covariates including maternal age and education, gestational age, and fetal sex, regression models indicated that pre-pregnancy BMI was negatively associated with PGH (β=-0.42, p<0.05) and IL-8 was positively associated with PGH (β=0.35, p<0.05) among the Black mothers only; neither were significantly associated with PGH in the White mothers. When extending models to birth outcomes, BMI was positively associated with birthweight corrected for gestational age (BWz) (β=0.24, p<0.05) and educational attainment was negatively associated with BWz (β=0.28, p<0.05) for infants of White women. In contrast, neither variable was predictive of BWz for infants of Black mothers. Conclusion Future work is needed to investigate racial differences in the association between adiposity and placental functioning, which are likely to contribute to differential effects on pregnancy outcomes and fetal growth.
What can we extract from quasi-periodic oscillations?
Creators: name: Boshkayev, Kuantay
name: Bini, Donato
name: Rueda, Jorge
name: Geralico, Andrea
name: Muccino, Marco
name: Siutsou, Ivan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In light of the relativistic precession model, we present here detailed analyses, extending the ones performed in the Schwarzschild and Kerr spacetimes. We consider the kilohertz quasi-periodic oscillations in the Hartle-Thorne spacetime, which describes the gravitational field of a rotating and deformed object. We derive the analytic formulas for the epicyclic frequencies in the Hartel-Thorne spacetime and by means of these frequencies we interpret the kilohertz quasi-periodic oscillations of low-mass X-ray binaries of the atoll and Z - sources, on the basis of the relativistic precession model. Particularly we perform analyzes for Z -source: GX 5-1. We show that the quasi-periodic oscillations data can provide information on the parameters, namely, the mass, angular momentum and quadrupole moment of the compact objects in the low-mass X-ray binaries.
description: 8 pages, 11 figures. arXiv admin note: text overlap with arXiv:1008.0088, arXiv:1201.6071 by other authors
Deformation of the Fermi Surface and Anomalous Mass Renormalization by Critical Spin Fluctuations through Asymmetric Spin-Orbit Interaction
Creators: name: Fujimoto, Yukinobu
name: Miyake, Kazumasa
name: Matsuura, Hiroyasu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It is shown that an asymmetric spin-orbit interaction is appreciably renormalized by the effect of critical spin fluctuations. As an explicit example, the Rashba-type interaction is predicted to be suppressed by anti-ferromagnetic critical fluctuations near the hot line (or point), leading to a deformation of the Fermi surface near the hot line (or point) around which the band splitting is decreased, while ferromagnetic critical fluctuations are shown to enhance the Rashba-type interaction everywhere on the Fermi surface, leading to an increase in the band splitting. It is also found that the many-body mass renormalization, which diverges towards the magnetic quantum critical point, is in the opposite sign for the two split bands by the Rashba-type interaction. These predictions are observable by the de Haas-van Alphen (dHvA) effect in principle.
description: Published as an article in the Letter section of J. Phys. Soc. Jpn.; 11 pages, 2 figures; Supplemental Materials (20 pages) is referred as Ref. 23 in the main text
New interaction solutions from Lax pair related symmetry of the Generalized fifth order KdV equation
Creators: name: Liu, Xi-zhong
name: Yu, Jun
name: Ren, Bo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The nonlocal symmetry of the generalized fifth order KdV equation (FOKdV) is first obtained by using the related Lax pair and then localized in a new enlarged system by introducing some new variables. On this basis, new Backlund transformation is obtained through Lie's first theorem. Furthermore, the general form of Lie point symmetry for the enlarged FOKdV system is found and new interaction solutions for the FOKdV equation are explored by using classical symmetry reduction method.
Galaxy pairs align with galactic filaments
Creators: name: Tempel, Elmo
name: Tamm, Antti
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Context. Gravitational collapse theory and numerical simulations suggest that the velocity field within large-scale galaxy filaments is dominated by motions along the filaments. Aims. Our aim is to check whether observational data reveal any preferred orientation of galaxy pairs with respect to the underlying filaments as a result of the expectedly anisotropic velocity field. Methods. We use galaxy pairs and galaxy filaments identified from the Sloan Digital Sky Survey data. For filament extraction, we use the Bisous model that is based the marked point process technique. During the filament detection, we use the centre point of each pair instead of the positions of galaxies to avoid a built-in influence of pair orientation on the filament construction. For pairs lying within filaments (3012 cases), we calculate the angle between the line connecting galaxies of each pair and their host filament. To avoid redshift-space distortions, the angle is measured in the plain of the sky. Results. The alignment analysis shows that the orientation of galaxy pairs correlates strongly with their host filaments. The alignment signal is stronger for loose pairs, with at least 25% excess of aligned pairs compared to a random distribution. The alignment of galaxy pairs and filaments measured from the observational data is in good concordance with the alignment in the Millennium simulation and thus provides support to the ΛCDM formalism.
description: 5 pages, 4 figures, accepted for publication in A&A Letters
Deciphering thermal phase curves of dry, tidally locked terrestrial planets
Creators: name: Koll, Daniel D. B.
name: Abbot, Dorian S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Next-generation space telescopes will allow us to characterize terrestrial exoplanets. To do so effectively it will be crucial to make use of all available data. We investigate which atmospheric properties can, and cannot, be inferred from the broadband thermal phase curve of a dry and tidally locked terrestrial planet. First, we use dimensional analysis to show that phase curves are controlled by six nondimensional parameters. Second, we use an idealized general circulation model (GCM) to explore the relative sensitivity of phase curves to these parameters. We find that the feature of phase curves most sensitive to atmospheric parameters is the peak-to-trough amplitude. Moreover, except for hot and rapidly rotating planets, the phase amplitude is primarily sensitive to only two nondimensional parameters: 1) the ratio of dynamical to radiative timescales, and 2) the longwave optical depth at the surface. As an application of this technique, we show how phase curve measurements can be combined with transit or emission spectroscopy to yield a new constraint for the surface pressure and atmospheric mass of terrestrial planets. We estimate that a single broadband phase curve, measured over half an orbit with the James Webb Space Telescope, could meaningfully constrain the atmospheric mass of a nearby super-Earth. Such constraints will be important for studying the atmospheric evolution of terrestrial exoplanets as well as characterizing the surface conditions on potentially habitable planets.
description: Accepted for publication in ApJ
Family-based psychosocial interventions for adult Latino patients with cancer and their caregivers: A systematic review
Creators: name: Ranzinger, Lisa Hart
name: Xu, Shenmeng
name: Alfahad, Abdulrahman Abdulmuslih S.
name: Shieh, Karl
name: Ping, Yu
name: Barroso, Susana
name: Conklin, Jamie L.
name: Cook, Paz
name: Guan, Ting
name: Song, Lixin
name: Villegas, Natalia
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Objective This review aimed to systematically examine the characteristics and outcomes of family-based psychosocial interventions offered to adult Latino patients with cancer and their caregivers. Methods We searched six databases from their inception dates through June 2022. Studies were eligible for inclusion if they (1) targeted both adult Latino patients diagnosed with cancer and their adult caregivers or reported subgroup analyses of Latino patients and caregivers; (2) included family-based psychosocial interventions; (3) used randomized controlled trial (RCT) or quasi-experimental designs; and (4) were published in English, Spanish or Portuguese. Members of our multidisciplinary team assessed the risk of bias in the reviewed studies using the Cochrane Collaboration's Risk of Bias Tool. Results Our database searches yielded five studies. The studies were conducted in the U.S. and Brazil. Three studies were RCTs, and two used quasi-experimental designs. The sample sizes ranged from 18 to 230 patient-caregiver dyads. These studies culturally adapted the intervention contents and implementation methods and involved bilingual interventionists. The interventions had beneficial effects on multiple aspects of psychosocial outcomes for both patients and caregivers. We also identified methodological limitations in the reviewed studies. Conclusions Findings from this systematic review help deepen our understanding of family-based psychosocial interventions for Latinos affected by cancer. The small number of psychosocial interventions focused on adult Latino cancer patients and their caregivers is concerning, considering that Latino populations are disproportionally burdened by cancer. Future research needs to design and evaluate culturally-appropriate interventions to support Latino patients and families who cope with cancer. Systematic review registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=274993, identifier CRD42021274993.
title: Employee acceptance of digital transformation strategies: A paradox perspective
Creators: name: Spieth, Patrick
name: Söllner, Matthias
name: Klein, Sascha Pascal
Publisher: name: Universität Kassel
Year: 2024
Subjects: subject: digital transformation strategy
subject: employee acceptance
subject: paradox mindset
subject: paradox theory
subject: 330
subject: Mitarbeiter
subject: Akzeptanz
subject: Paradoxon
subject: Digitalisierung
subject: Strategisches Management
subject: Unternehmen

description: Gefördert im Rahmen des Projekts DEAL