cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cosmic-ray ionisation in circumstellar discs
Creators: name: Padovani, Marco
name: Ivlev, Alexei V.
name: Galli, Daniele
name: Caselli, Paola
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Galactic cosmic rays are a ubiquitous source of ionisation of the interstellar gas, competing with UV and X-ray photons as well as natural radioactivity in determining the fractional abundance of electrons, ions and charged dust grains in molecular clouds and circumstellar discs. We model the propagation of different components of Galactic cosmic rays versus the column density of the gas. Our study is focussed on the propagation at high densities, above a few g cm$^{-2}$, especially relevant for the inner regions of collapsing clouds and circumstellar discs. The propagation of primary and secondary CR particles (protons and heavier nuclei, electrons, positrons, and photons) is computed in the continuous slowing down approximation, diffusion approximation, or catastrophic approximation, by adopting a matching procedure for the different transport regimes. A choice of the proper regime depends on the nature of the dominant loss process, modelled as continuous or catastrophic. The CR ionisation rate is determined by CR protons and their secondary electrons below $\approx 130$ g cm$^{-2}$ and by electron/positron pairs created by photon decay above $\approx600$ g cm$^{-2}$. We show that a proper description of the particle transport is essential to compute the ionisation rate in the latter case, since the electron/positron differential fluxes depend sensitively on the fluxes of both protons and photons. Our results show that the CR ionisation rate in high-density environments, like, e.g., the inner parts of collapsing molecular clouds or the mid-plane of circumstellar discs, is larger than previously assumed. It does not decline exponentially with increasing column density, but follows a more complex behaviour due to the interplay of different processes governing the generation and propagation of secondary particles.
description: 19 pages, 11 figures, accepted by A&A
Assistance orale à la recherche visuelle - étude expérimentale de l'apport d'indications spatiales à la détection de cibles
Creators: name: Kieffer, Suzanne
name: Carbonell, Noëlle
Publisher: name: arXiv
Year: 2007
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: This paper describes an experimental study that aims at assessing the actual contribution of voice system messages to visual search efficiency and comfort. Messages which include spatial information on the target location are meant to support search for familiar targets in collections of photographs (30 per display). 24 participants carried out 240 visual search tasks in two conditions differing from each other in initial target presentation only. The isolated target was presented either simultaneously with an oral message (multimodal presentation, MP), or without any message (visual presentation, VP). Averaged target selection times were thrice longer and errors almost twice more frequent in the VP condition than in the MP condition. In addition, the contribution of spatial messages to visual search rapidity and accuracy was influenced by display layout and task difficulty. Most results are statistically significant. Besides, subjective judgments indicate that oral messages were well accepted.
description: http://www.hcirn.com/res/period/rihm.php
A class of finite two - dimensional sigma models and string vacua
Creators: name: Tseytlin, A. A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a two - dimensional Minkowski signature sigma model with a $2+N$ - dimensional target space metric having a null Killing vector. It is shown that the model is finite to all orders of the loop expansion if the dependence of the ``transverse" part of the metric $\ggij (u,x)$ on the light cone coordinate $u$ is subject to the standard renormalization group equation of the $N$ - dimensional sigma model, $ {d\ggij\over du} = \gb_{ij} =R_{ij} + ... $. In particular, we discuss the `one - coupling' case when $\ggij(u,x)$ is a metric of an $N$ - dimensional symmetric space $\gij(x)$ multiplied by a function $f(u)$. The theory is finite if $f(u)$ is equal to the ``running" coupling of the symmetric space sigma model (with $u$ playing the role of the RG ``time"). For example, the geometry of space - time with $\gij$ being the metric of the $N$ - sphere is determined by the form of the $\gb$ - function of the $O(N+1)$ model. The ``asymptotic freedom" limit of large $u$ corresponds to the weak coupling limit of small $2+N$ - dimensional curvature. We prove that there exists a dilaton field which together with the $2+N$ - dimensional metric solves the sigma model Weyl invariance conditions. The resulting backgrounds thus represent new tree level string vacua. We also remark on possible connections with some $2d$ quantum gravity models.
description: 15 pages [Complete revision. The main statement of the previous version is generalised to the case of an arbitrary ``transverse" metric satisfying sigma model renormalization group equation.]
Edge Asymptotics of Planar Electron Densities
Creators: name: Dunne, Gerald
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The $N\to\infty$ limit of the edges of finite planar electron densities is discussed for higher Landau levels. For full filling, the particle number is correlated with the magnetic flux, and hence with the boundary location, making the $N\to\infty$ limit more subtle at the edges than in the bulk. In the $n^{\rm th}$ Landau level, the density exhibits $n$ distinct steps at the edge, in both circular and rectangular samples. The boundary characteristics for individual Landau levels, and for successively filled Landau levels, are computed in an asymptotic expansion.
description: 17pp including 5 figures, UCONN-93-9
Modeling complex effects of exposure to particulate matter and extreme heat during pregnancy on congenital heart defects: A U.S. population-based case-control study in the National Birth Defects Prevention Study
Creators: name: Simmons, W.
name: Stingone, J.A.
name: National Birth Defects Prevention Study
name: Luben, T.J.
name: Romitti, P.A.
name: Feldkamp, M.L.
name: Lin, S.
name: Nembhard, W.N.
name: Desrosiers, T.A.
name: Browne, M.L.
name: Sheridan, S.C.
name: Reefhuis, J.
name: Langlois, P.H.
name: Shaw, G.M.
Publisher: name: Elsevier B.V.
Year: 2022

description: Background/objective: Research suggests gestational exposure to particulate matter ≤2.5 μm (PM2.5) and extreme heat may independently increase risk of birth defects. We investigated whether duration of gestational extreme heat exposure modifies associations between PM2.5 exposure and specific congenital heart defects (CHDs). We also explored nonlinear exposure-outcome relationships. Methods: We identified CHD case children (n = 2824) and non-malformed live-birth control children (n = 4033) from pregnancies ending between 1999 and 2007 in the National Birth Defects Prevention Study, a U.S. population-based multicenter case-control study. We assigned mothers 6-week averages of PM2.5 exposure during the cardiac critical period (postconceptional weeks 3–8) using the closest monitor within 50 km of maternal residence. We assigned a count of extreme heat days (EHDs, days above the 90th percentile of daily maximum temperature for year, season, and weather station) during this period using the closest weather station. Using generalized additive models, we explored logit-nonlinear exposure-outcome relationships, concluding logistic models were reasonable. We estimated joint effects of PM2.5 and EHDs on six CHDs using logistic regression models adjusted for mean dewpoint and maternal age, education, and race/ethnicity. We assessed multiplicative and additive effect modification. Results: Conditional on the highest observed EHD count (15) and at least one critical period day during spring/summer, each 5 μg/m3 increase in average PM2.5 exposure was significantly associated with perimembranous ventricular septal defects (VSDpm; OR: 1.54 [95% CI: 1.01, 2.41]). High EHD counts (8+) in the same population were positively, but non-significantly, associated with both overall septal defects and VSDpm. Null or inverse associations were observed for lower EHD counts. Multiplicative and additive effect modification estimates were consistently positive in all septal models. Conclusions: Results provide limited evidence that duration of extreme heat exposure modifies the PM2.5-septal defects relationship. Future research with enhanced exposure assessment and modeling techniques could clarify these relationships.
Global String Radiation
Creators: name: Battye, R. A.
name: Shellard, E. P. S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study Goldstone boson (or axion) radiation from global $U(1)$-strings making direct quantitative comparisons between numerical scalar field theory simulations and linearized analytic calculations in the dual antisymmetric tensor representation. Concentrating on periodic long string configurations, we show excellent correspondence for both the amplitude and spectrum of radiation. We also find good agreement with a linearized analytic model for radiation backreaction, demonstrating that damping due to the lowest n=2 harmonic is effective in strongly suppressing higher harmonics. This work establishes the validity of the Kalb-Ramond action in describing low-energy global string dynamics, along with the associated self-field renormalization of the equations of motion. We also describe the different nature of massive radiation from high curvature regions and the collapse and annihilation of a circular loop. As an application in axion models, we discuss the relative loop and long string radiation contribution to a cosmological bound on the axion mass. A parallel linearized formalism for gravitational radiation is also provided.
description: 42 pages. No figures or reference macro included a full copy of the paper is available from the authors. DAMTP R93/30
Loop Gas Model for Open Strings
Creators: name: Kazakov, V.
name: Kostov, I.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The open string with one-dimensional target space is formulated in terms of an SOS, or loop gas, model on a random surface. We solve an integral equation for the loop amplitude with Dirichlet and Neumann boundary conditions imposed on different pieces of its boundary. The result is used to calculate the mean values of order and disorder operators, to construct the string propagator and find its spectrum of excitations. The latter is not sensible neither to the string tension $Ł$ nor to the mass $μ$ of the ``quarks'' at the ends of the string. As in the case of closed strings, the SOS formulation allows to construct a Feynman diagram technique for the string interaction amplitudes.
Additional file 9: of Comprehensive transcriptomic analysis of heat shock proteins in the molecular subtypes of human breast cancer
Creators: name: Zoppino, Felipe
name: Guerrero-Gimenez, Martin
name: Castro, Gisela
name: Ciocca, Daniel
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Summary of HSP subfamily Fold Change trends across PAM50 subtypes. Boxplot representing HSP subfamilies log2 fold change ranges by EdgeR method in the different molecular subtypes of breast cancer. (PDF 111 kb)
An $L^2$-identity and pinned distance problem
Creators: name: Liu, Bochen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 28A75, 42B20

description: Let $μ$ be a Frostman measure on $E\subset\mathbb{R}^d$. The spherical average decay $$\int_{S^{d-1}}|\widehatμ(rω)|^2\,dω\lesssim r^{-β} $$ was originally used to attack Falconer distance conjecture, via Mattila's integral. In this paper we consider the pinned distance problem, a stronger version of Falconer distance problem, and show that spherical average decay implies the same dimensional threshold on both of them. In particular, with the best known spherical average estimates, we improve Peres-Schlag's result on pinned distance problem significantly. The idea is to reduce the pinned distance problem to an integral where spherical averages apply. The key ingredient is the following identity. Using a group action argument, we show that for any Schwartz function $f$ on $\mathbb{R}^d$ and any $x\in\mathbb{R}^d$, $$\int_0^\infty |ω_t*f(x)|^2\,t^{d-1}dt\,=\int_0^\infty|\widehat{ω_r}*f(x)|^2\,r^{d-1}dr,$$ where $ω_r$ is the normalized surface measure on $r S^{d-1}$. An interesting remark is that the right hand side can be easily seen equal to $$c_d\int\left|D_x^{-\frac{d-1}{2}}e^{-2πi t\sqrt{-Δ}}f(x)\right|^2\,dt=c_d'\int\left|D_x^{-\frac{d-2}{2}}e^{2πi tΔ}f(x)\right|^2\,dt.$$ An alternative derivation of Mattila's integral via group actions is also given in the Appendix.
description: Final version, to appear in GAFA
Tailoring of phononic band structures in colloidal crystals
Creators: name: Baumgartl, Joerg
name: Zvyagolskaya, Maria
name: Bechinger, Clemens
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report an experimental study of the elastic properties of a two-dimensional (2D) colloidal crystal subjected to light-induced substrate potentials. In agreement with recent theoretical predictions [H.H. von Gruenberg and J. Baumgartl, Phys. Rev. E 75, 051406 (2007)] the phonon band structure of such systems can be tuned depending on the symmetry and depth of the substrate potential. Calculations with binary crystals suggest that phononic band engineering can be also performed by variations of the pair potential and thus opens novel perspectives for the fabrication of phononic crystals with band gaps tunable by external fields.
description: 4 pages, 4 figures, to appear in Physical Review Letters
An Early and Unequal Decline: Life Course Trajectories of Cognitive Aging in the United States
Creators: name: Aiello, Allison E.
name: Belsky, Daniel W.
name: Harris, Kathleen Mullan
name: Plassman, Brenda L.
name: Yang, Yang C.
name: Shartle, Kaitlin
name: Stebbins, Rebecca C.
name: Chanti-Ketterl, Marianne
name: Walsh, Christine E.
Publisher: name: SAGE Publications
Year: 2024

description: Objectives: Cognitive aging is a lifelong process with implications for Alzheimer’s disease and dementia. This study aims to fill major gaps in research on the natural history of and social disparities in aging-related cognitive decline over the life span. Methods: We conducted integrative data analysis of four large U.S. population-based longitudinal studies of individuals aged 12 to 105 followed over two decades and modeled age trajectories of cognitive function in multiple domains. Results: We found evidence for the onset of cognitive decline in the 4th decade of life, varying gender differences with age, and persistent disadvantage among non-Hispanic Blacks, Hispanics, and those without college education. We further found improvement in cognitive function across 20th century birth cohorts but widening social inequalities in more recent cohorts. Discussion: These findings advance an understanding of early life origins of dementia risk and invite future research on strategies for promoting cognitive health for all Americans.
Additional file 9: of Evaluation of bias induced by viral enrichment and random amplification protocols in metagenomic surveys of saliva DNA viruses
Creators: name: Parras-Moltó, Marcos
name: Rodríguez-Galet, Ana
name: Suárez-Rodríguez, Patricia
name: López-Bueno, Alberto
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 60506 Virology

description: Figure S3. Impact of random amplification on beta diversity studies of saliva viromes at different sequencing depths. (PDF 359 kb)
Heat capacity and Mosssbauer study of Self flux grown FeTe Single Crystal
Creators: name: Maheshwari, P. K
name: Reddy, V. Raghavendra
name: Awana, V. P. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report mainly the heat capacity and Mossbauer study of self flux grown FeTe single crystal, which is ground state compound of the Fe chalcogenides superconducting series, i.e., FeTe1-x(Se/S)x. The as grown FeTe single crystal is large enough to the tune of few cm and the same crystallizes in tetragonal structure having space group of P4/nmm. FeTe shows the structural/magnetic phase transition at 70K in both magnetic and resistivity measurements. Heat capacity measurement also confirms the coupled structural/magnetic transition at the same temperature. The Debye model fitting of low temperature (below 70K) heat capacity exhibited Debye temperature to be 324K. MÖssbauer spectra are performed at 300K and 5K. The 300K spectra showed two paramagnetic doublets and the 5K spectra exhibited hyperfine magnetic sextet with an average hyperfine field of 10.6Tesla matching with the results of Yoshikazu Mizuguchi et al.
description: Short MS-12 pages text + figs: Accepted Letter - J. Sup. Novel Mag
Contact-FP: A Dimerization-Dependent Fluorescent Protein Toolkit for Visualizing Membrane Contact Site Dynamics
Creators: name: Showalter, Wendy K.
name: Smith, Sidney Y.
name: Miner, Gregory E.
name: Ragusa, Joey V.
name: Cohen, Sarah
name: Powers, Alex E.
name: So, Christina M.
name: Marchan, Michelle F.
name: Hsu, Chih-Hsuan
name: Zanellati, Maria Clara
Publisher: name: SAGE Publications
Year: 2024

description: 
Membrane contact sites (MCSs) are sites of close apposition between two organelles used to exchange ions, lipids, and information. Cells respond to changing environmental or developmental conditions by modulating the number, extent, or duration of MCSs. Because of their small size and dynamic nature, tools to study the dynamics of MCSs in live cells have been limited. Dimerization-dependent fluorescent proteins (ddFPs) targeted to organelle membranes are an ideal tool for studying MCS dynamics because they reversibly interact to fluoresce specifically at the interface between two organelles. Here, we build on previous work using ddFPs as sensors to visualize the morphology and dynamics of MCSs. We engineered a suite of ddFPs called Contact-FP that targets ddFP monomers to lipid droplets (LDs), the endoplasmic reticulum (ER), mitochondria, peroxisomes, lysosomes, plasma membrane, caveolae, and the cytoplasm. We show that these probes correctly localize to their target organelles. Using LDs as a test case, we demonstrate that Contact-FP pairs specifically localize to the interface between two target organelles. Titration of LD-mitochondria ddFPs revealed that these sensors can be used at high concentrations to drive MCSs or can be titrated down to minimally perturb and visualize endogenous MCSs. We show that Contact-FP probes can be used to: (1) visualize LD-mitochondria MCS dynamics, (2) observe changes in LD-mitochondria MCS dynamics upon overexpression of PLIN5, a known LD-mitochondrial tether, and (3) visualize two MCSs that share one organelle simultaneously (e.g., LD-mitochondria and LD-ER MCSs). Contact-FP probes can be optimized to visualize MCSs between any pair of organelles represented in the toolkit.
Global Strings and the Aharonov-Bohm Effect
Creators: name: Davis, A. C.
name: Martin, A. P.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: When a fermion interacts with a global vortex or cosmic string a solenoidal "gauge" field is induced. This results in a non-trivial scattering cross-section. For scalars and non-relativistic fermions the cross-section is similar to that of Aharonov and Bohm, but with corrections. A cosmological example is compared to one in liquid He$^{3}$-A and important differences are discovered.
description: 11 pages, DAMTP 93-50
Quantum-Mechanical Scattering of Charged Black Holes
Creators: name: Traschen, Jennie
name: Ferrel, Robert
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe the quantum mechanical scattering of slowly moving maximally charged black holes. Our technique is to develop a canonical quantization procedure on the parameter space of possible static classical solutions. With this, we compute the capture cross sections for the scattering of two black holes. Finally, we discuss how quantization on this parameter space relates to quantization of the degrees of freedom of the gravitational field.
description: 16 pages
Additional file 7: of Signatures of ecological processes in microbial community time series
Creators: name: Faust, Karoline
name: Bauchinger, Franziska
name: BĂŠatrice Laroche
name: Buyl, Sophie De
name: Lahti, Leo
name: Washburne, Alex
name: Gonze, Didier
name: Widder, Stefanie
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S5. The test for temporal structure with noise types is robust to compositionality and the absence of transient dynamics. (a) The noise-type profiles for absolute abundances do not differ noticeably from those for relative abundances shown in Figure 3a. (b) When noise types are computed for the last hundred time points, most time series are correctly classified as temporally structured or unstructured. Labels for time series are colored according to the level of non-zero intrinsic noise (sigma) for Ricker, according to the death rate if larger than one for Hubbell, according to the interval if larger than one (with interval coloring taking precedence over sigma) and black otherwise. (PDF 8 kb)
Quantum Hamilton-Jacobi Theory
Creators: name: Roncadelli, Marco
name: Schulman, L. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum canonical transformations have attracted interest since the beginning of quantum theory. Based on their classical analogues, one would expect them to provide a powerful quantum tool. However, the difficulty of solving a nonlinear operator partial differential equation such as the quantum Hamilton-Jacobi equation (QHJE) has hindered progress along this otherwise promising avenue. We overcome this difficulty. We show that solutions to the QHJE can be constructed by a simple prescription starting from the propagator of the associated Schroedinger equation. Our result opens the possibility of practical use of quantum Hamilton-Jacobi theory. As an application we develop a surprising relation between operator ordering and the density of paths around a semiclassical trajectory.
description: 7 pages
A Fixed-Parameter Algorithm for the Max-Cut Problem on Embedded 1-Planar Graphs
Creators: name: Dahn, Christine
name: Kriege, Nils M.
name: Mutzel, Petra
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We propose a fixed-parameter tractable algorithm for the \textsc{Max-Cut} problem on embedded 1-planar graphs parameterized by the crossing number $k$ of the given embedding. A graph is called 1-planar if it can be drawn in the plane with at most one crossing per edge. Our algorithm recursively reduces a 1-planar graph to at most $3^k$ planar graphs, using edge removal and node contraction. The \textsc{Max-Cut} problem is then solved on the planar graphs using established polynomial-time algorithms. We show that a maximum cut in the given 1-planar graph can be derived from the solutions for the planar graphs. Our algorithm computes a maximum cut in an embedded 1-planar graph with $n$ nodes and $k$ edge crossings in time $\mathcal{O}(3^k \cdot n^{3/2} \log n)$.
description: conference version from IWOCA 2018
The landscape's construction: traces of modernist rural landscapes in Albania
Creators: name: Pompejano, Federica
Publisher: name: Zenodo
Year: 2021
Subjects: Dissemination; Oral presentation; Conference; Marie Skłodowska-Curie Action; MSCA-IF; GA No. 896925; Materializing Modernity; MaMo

description: Video of the oral presentation held by Dr Federica Pompejano (MSCA-IF Fellow) on May 1st, 2021 at the VIII AACCP (Architecture, Archaeology, and Contemporary City Planning) Symposium "CITIES IN EVOLUTION. DIACHRONIC TRANSFORMATIONS OF URBAN AND RURAL SETTLEMENTS" organized by the Dynamic Research on Urban Morphology-DRUM laboratory, Özyeğin University, Istanbul, Turkey, April 26th-May 2nd, 2021. Due to SARS-COVID 19 Pandemic, the conference has been held on ZOOM platform.
description: The video recording of the entire session is also available at: https://www.youtube.com/watch?v=6SMsWsnsAzk Dr Pompejano intervention is available at Min 1:30:56
Rigid systems of second-order linear differential equations
Creators: name: Garcia-Planas, M. Isabel
name: Magret, M. Dolors
name: Sergeichuk, Vladimir V.
name: Zharko, Nadya A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Representation Theory (math.RT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 15A21; 34D10; 93B10

description: We say that a system of differential equations d^2x(t)/dt^2=Adx(t)/dt+Bx(t)+Cu(t), in which A and B are m-by-m complex matrices and C is an m-by-n complex matrix, is rigid if it can be reduced by substitutions x(t)=Sy(t), u(t)=Udy(t)/dt+Vy(t)+Pv(t) with nonsingular S and P to each system obtained from it by a small enough perturbation of its matrices A,B,C. We prove that there exists a rigid system if and only if m
description: 22 pages
Additional file 8: of Comprehensive transcriptomic analysis of heat shock proteins in the molecular subtypes of human breast cancer
Creators: name: Zoppino, Felipe
name: Guerrero-Gimenez, Martin
name: Castro, Gisela
name: Ciocca, Daniel
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Plant Biology
subject: 60506 Virology

description: Dendrogram analysis of hierarchical clustering based on HSPs gene expression. The separation distance between branches was determined by silhouette technique. The highest coefficient corresponds to the optimal number of cluster, in this case k = 3. (PDF 99 kb)
Additional file 6: of Signatures of ecological processes in microbial community time series
Creators: name: Faust, Karoline
name: Bauchinger, Franziska
name: Laroche, Béatrice
name: Buyl, Sophie De
name: Lahti, Leo
name: Washburne, Alex
name: Gonze, Didier
name: Widder, Stefanie
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S4. The noise-type classification and the neutrality test are robust for a wide parameter range in the Hubbell model, but noise types are affected by the death rate. (a) The percentage of taxa with black, brown, pink and white noise types is plotted against the death rate. There is a significant negative correlation between the percentage of brown species and the death rate (Spearman’s rho: − 0.85, p value
Additional file 7: of Evaluation of bias induced by viral enrichment and random amplification protocols in metagenomic surveys of saliva DNA viruses
Creators: name: Parras-Moltó, Marcos
name: Rodríguez-Galet, Ana
name: Suárez-Rodríguez, Patricia
name: López-Bueno, Alberto
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Figure S2. Taxonomic profile of saliva viromes. (PDF 573 kb)
Four Dimensional Stringy Black Membrane
Creators: name: Kar, Supriya K.
name: Khastgir, S. Pratik
name: Sengupta, Gautam
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An exact conformal field theory describing a four dimensional singular string background is obtained by chiral gauging a $U(1)$ subgroup along with translations in $R$ of an $SL(2,R)\times R$ Wess-Zumino-Witten model. It is shown that the target space-time describes a four dimensional black membrane. Furthermore various duality transformed solutions are constructed. These are also shown to correspond to various forms of four dimensional black membranes.
description: 13 pages
Different but the Same: Common Themes in Illness Experience Among People With Diverse Long COVID Symptoms and the Potential Benefits of Virtual Group Medical Visits
Creators: name: Kavalakatt, Bethany
name: Roth, Isabel
name: Tiedt, Malik
name: Mata, Raveena
name: Chilcoat, Aisha
name: Barnhill, Jessica
Publisher: name: SAGE Publications
Year: 2024

description: 
Long coronavirus disease 2019 (COVID-19) is poorly understood, widespread and debilitating. Integrative medical group visits (IMGVs) provide group medical care virtually or in person and are reimbursed by insurance payors. IMGV introduces integrative modalities such as mindfulness, nutrition, and acupressure in a person-centered, supportive, and educational environment. To evaluate a telehealth IMGV program called Nourish to Flourish (N2F) for patients with long COVID, three researchers conducted a qualitative analysis of pre- and post-group individual interviews. Twenty-five patients provided interviews, of which fifteen included pre- and post-group individual interviews. Main themes were unpredictable symptom patterns, a common range of emotions associated with long COVID experience, reconceptualizing self-identity, multiple barriers to care in conventional settings, and connections formed in N2F. Although symptoms varied, N2F participants found commonalities in their experiences of living with long COVID. They empathized with one another regarding changing symptoms, inconsistent social support, shifting identities, and barriers to effective medical care.
Highly Excited Mesons, Linear Regge Trajectories and the Pattern of the Chiral Symmetry Realization
Creators: name: Shifman, M.
name: Vainshtein, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The chiral symmetry of QCD shows up in the linear Weyl--Wigner mode at short Euclidean distances or at high temperatures. On the other hand, low-lying hadronic states exhibit the nonlinear Nambu--Goldstone mode. An interesting question was raised as to whether the linear realization of the chiral symmetry is asymptotically restored for highly excited states. We address it in a number of ways. On the phenomenological side we argue that to the extent the meson Regge trajectories are observed to be linear and equidistant, the Weyl--Wigner mode is not realized. This picture is supported by quasiclassical arguments implying that the quark spin interactions in high excitations are weak, the trajectories are linear, and there is no chiral symmetry restoration. Then we use the string/gauge duality. In the top-down Sakai--Sugimoto construction the nonlinear realization of the chiral symmetry is built in. In the bottom-up AdS/QCD construction by Erlich et al., and Karch et al. the situation is more ambiguous. However, in this approach linearity and equidistance of the Regge trajectories can be naturally implemented, with the chiral symmetry in the Nambu--Goldstone mode. Asymptotic chiral symmetry restoration might be possible if a nonlinearity (convergence) of the Regge trajectories in an "intermediate window" of $n,J$, beyond the explored domain, takes place. This would signal the failure of the quasiclassical picture.
description: Minor text changes. Final version to be published in PRD, 36 pages, 7 figures
Advancing equity in challenging times: A qualitative study of telehealth expansion and changing patient–provider relationships in primary care settings during the COVID-19 pandemic
Creators: name: Murray, Genevra F
name: Aijaz, Monisa
name: Lewis, Valerie A
Publisher: name: SAGE Publications
Year: 2024

description: 
Objective
The patient–provider relationship is critical for achieving high-quality care and better health outcomes. During the COVID-19 pandemic, primary care practices rapidly transitioned to telehealth. While telehealth provided critical access to services for many, not all patients could optimally utilize it, raising concerns about its potential to exacerbate inequities in patient–provider relationships. We investigated technical and workforce-related barriers to accessing telehealth and the impacts on patient–provider relationships for vulnerable populations.

Methods
Qualitative, semi-structured interviews from May 2021 to August 2021 with 31 individuals (medical directors, physicians, and medical assistants) working at 20 primary care practices in Massachusetts, North Carolina, and Texas. Thematic analysis to better understand how barriers to using telehealth complicated patient–provider relationships.

Results
Interviewees shared challenges for providers and patients that had a negative effect on patient–provider relationships, particularly for vulnerable patients, including older adults, lower socio-economic status patients, and those with limited English proficiency. Providers faced logistical challenges and disruptions in team-based care, reducing care coordination. Patients experienced technological challenges that made accessing and engaging in telehealth difficult. Interviewees shared challenges for patient–provider relationships as commonly used telephone-only telehealth reduced channels for non-verbal communication.

Conclusion
This study indicates that barriers to virtual interaction with patients compared to in-person care likely led to weaker personal relationships that may have longer-term effects on engagement with and trust in the healthcare system, particularly among vulnerable patient groups. Additional support and resources should be available to primary care providers to optimize telehealth utilization.
LINDAT/CLARIAH-CZ: Oborový repozitář nejen pro jazyková data
Creators: name: Straňák, Pavel
Publisher: name: Zenodo
Year: 2021
Subjects: data repository
open data
FAIR
LINDAT/CLARIAH-CZ
open science

description: Prezentace přednášky ze školení Jak podporovat open science Anotace:  Představení oborového repozitáře LINDAT/CLARIAH-CZ budovaného Ústavem formální a aplikované lingvistiky MFF UK. Jaké možnosti nabízí repozitář uživatelům, jak je napojen na širší infrastrukturu a jak pomáhá tomu aby data byla FAIR? Pořadatel: Centrum pro podporu open science, Univerzita Karlova Stránky akce: https://openscience.cuni.cz/OSCI-126.html
description: Podpořeno projektem OP VVV Rozvoj kapacit pro výzkum a vývoj UK II, reg. č.: CZ.02.2.69/0.0/0.0/18_054/0015222.
Testing the equivalence principle on cosmological scales
Creators: name: Bonvin, Camille
name: Fleury, Pierre
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The equivalence principle, that is one of the main pillars of general relativity, is very well tested in the Solar system; however, its validity is more uncertain on cosmological scales, or when dark matter is concerned. This article shows that relativistic effects in the large-scale structure can be used to directly test whether dark matter satisfies Euler's equation, i.e. whether its free fall is characterised by geodesic motion, just like baryons and light. After having proposed a general parametrisation for deviations from Euler's equation, we perform Fisher-matrix forecasts for future surveys like DESI and the SKA, and show that such deviations can be constrained with a precision of order 10%. Deviations from Euler's equation cannot be tested directly with standard methods like redshift-space distortions and gravitational lensing, since these observables are not sensitive to the time component of the metric. Our analysis shows therefore that relativistic effects bring new and complementary constraints to alternative theories of gravity.
description: 25 + 12 pages, 9 figures; v2 matches published version
Importance of initial conditions in the polarization of complex networks
Creators: name: Shekatkar, Snehal M.
name: Barve, Sukratu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Social and Information Networks (cs.SI)
subject: Discrete Mathematics (cs.DM)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Currently used models of opinion formation use random initial conditions. In reality, most people in a social network, except for a small fraction of the population, are initially either unaware of, or indifferent to, the disputed issue. To explore the consequences of such specific initial conditions, we study the polarization of social networks when conflicting ideas arise on two different seed nodes and then spread according to a majority rule. Using the configuration model and the stochastic block model as examples, we show that this framework leads to substantially different outcomes than those which employ random initial conditions. Moreover, the empirically observed splits in the karate and the dolphins' networks naturally come out of this paradigm. Our work thus suggests that the existing opinion dynamics models should be reevaluated to incorporate the initial condition dependence.
description: Removed 1 figure, the final version
Super-Eddington Accretion in Tidal Disruption Events: the Impact of Realistic Fallback Rates on Accretion Rates
Creators: name: Wu, Samantha
name: Coughlin, Eric R.
name: Nixon, Chris
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: After the tidal disruption of a star by a massive black hole, disrupted stellar debris can fall back to the hole at a rate significantly exceeding its Eddington limit. To understand how black hole mass affects the duration of super-Eddington accretion in tidal disruption events, we first run a suite of simulations of the disruption of a Solar-like star by a supermassive black hole of varying mass to directly measure the fallback rate onto the hole, and we compare these fallback rates to the analytic predictions of the "frozen-in" model. Then, adopting a Zero-Bernoulli Accretion flow as an analytic prescription for the accretion flow around the hole, we investigate how the accretion rate onto the black hole evolves with the more accurate fallback rates calculated from the simulations. We find that numerically-simulated fallback rates yield accretion rates onto the hole that can, depending on the black hole mass, be nearly an order of magnitude larger than those predicted by the frozen-in approximation. Our results place new limits on the maximum black hole mass for which super-Eddington accretion occurs in tidal disruption events.
description: 10 pages, 10 figures, MNRAS Accepted
Additional file 5: of Signatures of ecological processes in microbial community time series
Creators: name: Faust, Karoline
name: Bauchinger, Franziska
name: BĂŠatrice Laroche
name: Buyl, Sophie De
name: Lahti, Leo
name: Washburne, Alex
name: Gonze, Didier
name: Widder, Stefanie
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Figure S3. The noise-type classification and the neutrality test for SOI are robust to interaction matrix properties. (a) The percentage of taxa with black, brown, pink, and white noise types is plotted against the connectance of the interaction matrix. (b) The percentage of taxa with black, brown, pink and white noise types is plotted against the positive edge percentage of the interaction matrix. The stochasticity in the SOI model is plotted against (c) noise types and (d) neutrality p values. Stochasticity is defined here as the ratio between the mean of extinctions and immigrations and the mean of the absolute interaction strengths (excluding diagonal values). Neutrality test p values for (a) and (b) were zero, indicating non-neutral dynamics. Time series were generated for 100 species and 3000 time points. (PDF 16 kb)
RETURN To an humble Address presented to His Honour the Lieutenant-Governor, praying him to cause to be sent down to this House copies of all correspondence between His Honour and the late Premier of the Province, Mr. J. H. Turner, in relation to His Honour's refusal to sign certain warrants, and to the dismissal of the late Government.
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2014

Abstract
A BIBLOMETRICS STUDY ON ELECTRONIC PHD THESES AND DISSERTATIONS OF THE FACULTY OF LAW IN INFLIBNET SHODHGANGA REPOSITORY
Creators: name: Dr. MOHAN JAMDADE
name: Dr. SACHIN S. SURYAWANSHI
name: SANJEEV H. CHAVAN
Publisher: name: Zenodo
Year: 2024
Subjects: Bibliometric, INFLIBNET, Institutional Repository, Law Research, Shodhganga.

description: Abstract

The objective of this study is to examine the availability and legibility of Law Faculty PhD program theses uploaded on the Shodhganga repository. For this study, Data was retrieved from Shodhganga ETD Repository and Google Scholar. One hundred and forty nine Indian universities have deposited 3441 PhD theses in Shodhganga Repository till December 2021. Punjab University has uploaded the maximum number of PhD theses on Shodhganga and Kuvempu University has the maximum number of citations.
Current reversal in collective ratchets induced by lattice instability
Creators: name: Dinis, L.
name: Gonzalez, E. M.
name: Anguita, J. V.
name: Parrondo, J. M. R.
name: Vicent, J. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A collective mechanism for current reversal in superconducting vortex ratchets is proposed. The mechanism is based on a two-dimensional instability of the ground state (T=0) of the system. We illustrate our results with numerical simulations and experiments in Nb superconducting films fabricated on top of Si substrates with artificially induced asymmetric pinning centers.
description: 5 pages, 4 figures. Accepted for publication in Phys. Rev. B
Revealing memory effects in phase-covariant quantum master equations
Creators: name: Teittinen, Jose
name: Lyyra, Henri
name: Sokolov, Boris
name: Maniscalco, Sabrina
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study and compare the sensitivity of multiple non-Markovianity indicators for a qubit subjected to general phase-covariant noise. For each of the indicators, we derive analytical conditions to detect the dynamics as non-Markovian. We present these conditions as relations between the time-dependent decay rates for the general open system dynamics and its commutative and unital subclasses. These relations tell directly if the dynamics is non-Markovian w.r.t.~each indicator, without the need to explicitly derive and specify the analytic form of the time-dependent coefficients. Moreover, with a shift in perspective, we show that if one assumes only the general form of the master equation, measuring the non-Markovianity indicators gives us directly non-trivial information on the relations between the unknown decay rates.
description: 21 pages, 1 figure
Additional file 6: of Evaluation of bias induced by viral enrichment and random amplification protocols in metagenomic surveys of saliva DNA viruses
Creators: name: Parras-Moltó, Marcos
name: Rodríguez-Galet, Ana
name: Suárez-Rodríguez, Patricia
name: López-Bueno, Alberto
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Figure S1. Percentage of 16S rDNA reads in a set of saliva microbiomes and viromes. (PDF 182 kb)