cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Streaming potential modeling in fractured rock: Insights into the identification of hydraulically active fractures
Creators: name: Roubinet, D.
name: Linde, N.
name: Jougnot, D.
name: Irving, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Numerous field experiments suggest that the self-potential (SP) geophysical method may allow for the detection of hydraulically active fractures and provide information about fracture properties. However, a lack of suitable numerical tools for modeling streaming potentials in fractured media prevents quantitative interpretation and limits our understanding of how the SP method can be used in this regard. To address this issue, we present a highly efficient two-dimensional discrete-dual-porosity approach for solving the fluid flow and associated self-potential problems in fractured rock. Our approach is specifically designed for complex fracture networks that cannot be investigated using standard numerical methods. We then simulate SP signals associated with pumping conditions for a number of examples to show that (i) accounting for matrix fluid flow is essential for accurate SP modeling and (ii) the sensitivity of SP to hydraulically active fractures is intimately linked with fracture-matrix fluid interactions. This implies that fractures associated with strong SP amplitudes are likely to be hydraulically conductive, attracting fluid flow from the surrounding matrix.
description: 8 pages, 2 figures
A Statistical Mechanical Approach to Protein Aggregation
Creators: name: Schreck, John S.
name: Yuan, Jian-Min
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: We develop a theory of aggregation using statistical mechanical methods. An example of a complicated aggregation system with several levels of structures is peptide/protein self-assembly. The problem of protein aggregation is important for the understanding and treatment of neurodegenerative diseases and also for the development of bio-macromolecules as new materials. We write the effective Hamiltonian in terms of interaction energies between protein monomers, protein and solvent, as well as between protein filaments. The grand partition function can be expressed in terms of a Zimm-Bragg-like transfer matrix, which is calculated exactly and all thermodynamic properties can be obtained. We start with two-state and three-state descriptions of protein monomers using Potts models that can be generalized to include q-states, for which the exactly solvable feature of the model remains. We focus on n X N lattice systems, corresponding to the ordered structures observed in some real fibrils. We have obtained results on nucleation processes and phase diagrams, in which a protein property such as the sheet content of aggregates is expressed as a function of the number of proteins on the lattice and inter-protein or interfacial interaction energies. We have applied our methods to Aβ(1-40) and Curli fibrils and obtained results in good agreement with experiments.
description: 13 pages, 8 figures, accepted to J. Chem. Phys
The Pressure Effects on Electronic Structure of Iron Chalcogenide Superconductors FeSe$_{1-x}$Te$_x$
Creators: name: Ciechan, A.
name: Winiarski, M. J.
name: Samsel-Czekała, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the electronic structure of iron-based superconductors FeSe$_{1-x}$Te$_x$ within the density functional theory. We pay particular attention to the pressure effects on the Fermi surface (FS) topology, which seem to be correlated with a critical superconducting temperature TC of iron chalcogenides and pnictides. A reduction of the FS nesting between hole and electron cylinders with increasing pressure is observed, which can lead to higher values of TC . The tellurium substitution into selenium sites yields FS changes similar to the pressure effect.
description: 4 pages, 6 figures, 1 table
Sustaining sexual health programs: practical considerations and lessons from the President’s Emergency Plan for AIDS Relief
Creators: name: Mukuka, Chibeka
name: Sturke, Rachel
name: Ezechi, Oliver
name: Nwaozuru, Ucheoma C
name: Tucker, Joseph D
name: Iwelunmor, Juliet
name: Chima, Kelechi
name: Obiezu-Umeh, Chisom
name: Day, Suzanne
name: Vorkoper, Susan
Publisher: name: CSIRO Publishing
Year: 2024

description: Enhancing the sustainability of sexual health programs is important, but there are few practical tools to facilitate this process. Drawing on a sustainability conceptual framework, this Editorial proposes four ideas to increase the sustainability of sexual health programs - early planning, equitable community engagement, return on investment, and partnerships to address social determinants. Early planning during the design of a sexual health program is important for sustainability because it provides an opportunity for the team to build factors relevant to sustainability into the program itself. Equitable community engagement can expand multi-sectoral partnerships for institutionalisation, identify allies for implementation, and strengthen relationships between beneficiaries and researchers. From a financial perspective, considering the return on investment could increase the likelihood of sustainability. Finally, partnerships to address social determinants can help to identify organisations with a similar vision. Existing sustainability frameworks can be used to measure each of these key elements. Several approaches can be used to enhance the sustainability of sexual health programs. The President's Emergency Plan for AIDS Relief provides potential lessons for increasing the sustainability of sexual health programs in diverse global settings.
Description of Data on the Nimbus 7 LIMS Map Archive Tape - Water Vapor and Nitrogen Dioxide
Creators: name: Haggard, Kenneth V
name: Marshall, BT
name: Kurzeja, Robert J
name: Remsberg, Ellis E
name: Russell, James M
Publisher: name: Zenodo
Year: 1988
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85125953.html
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html

description: Technical paper describing The Limb Infrared Monitor of the Stratosphere (LIMS) experiment on the Nimbus 7 spacecraft, which consisted of a thermal infrared limb scanning radiometer with six channels centered at wavelengths ranging from 6.2 to 15µm.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1010/ The publish date on this item was its original published date. Main files in this record: Description_of_Data_on_the_Nimbus_7_LIMS_Map_Archive_Tape_-_Water_Vapor_and_Nitrogen_Dioxide_feb88.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Additional file 1 of Evolution of transcriptional regulation of histidine metabolism in Gram-positive bacteria
Creators: name: Ashniev, German A.
name: Sernova, Natalia V.
name: Shevkoplias, Aleksei E.
name: Rodionov, Ivan D.
name: Rodionova, Irina A.
name: Vitreschak, Alexey G.
name: Gelfand, Mikhail S.
name: Rodionov, Dmitry A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 1. Maximum-likelihood phylogenetic tree for the HisR proteins in studied genomes.
Anti-flow of Mesons in the High Baryon Density Region
Creators: name: Liu, Zuo-Wen
name: Shi, Shusu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The E895 and STAR experiments demonstrate that the slopes of directed flow with respect to rapidity ($dv_1/dy|_{y=0}$) of mesons are negative in the low transverse momentum ($p_T$) region, $p_T < 0.8$ GeV/$c$, in Au + Au collisions at $\sqrt{s_{NN}} = 3.0 - 3.9$ GeV. Using the transport model JAM, we investigate the directed flow of $π^{\pm}$, $K^{\pm}$, and $K^0$ as functions of rapidity, $p_T$, and collision energy in Au + Au collisions at the same energies as those in the E895 and STAR experiments. We find that the JAM model can qualitatively reproduce the anti-flow of $K^0_S$ observed in the E895 experiment. The $v_1$ slopes of pions and kaons are analyzed as functions of the $p_T$ window, revealing a strong $p_T$ dependence of the $v_1$ slopes. Negative $v_1$ slopes are observed in the low $p_T$ region, $p_T < 0.8$ GeV/$c$, while positive slopes are shown in the higher $p_T$ region. We find that the shadowing effect from spectators is crucial in generating the anti-flow of mesons at low $p_T$ in the high baryon density region.
description: 7 pages, 7 figures, accepted by Phys. Rev. C
Finite-size effects on the Bose-Einstein condensation critical temperature in a harmonic trap
Creators: name: Noronha, José M. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We obtain second and higher order corrections to the shift of the Bose-Einstein critical temperature due to finite-size effects. The confinement is that of a harmonic trap with general anisotropy. Numerical work shows the high accuracy of our expressions. We draw attention to a subtlety involved in the consideration of experimental values of the critical temperature in connection with analytical expressions for the finite-size corrections.
description: 5 pages, 2 eps figures
Implementation of Shor's Algorithm with a Single Photon in 32 Dimensions
Creators: name: Weng, Hao-Cheng
name: Chuu, Chih-Sung
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Photonics has been a promising platform for implementing quantum technologies owing to its scalability and robustness. In this Letter, we demonstrate the encoding of information in 32 time bins or dimensions of a single photon. A practical scheme for manipulating the single photon in high dimensions is experimentally realized to implement a compiled version of Shor's algorithm on a single photon. Our work demonstrates the powerful information processing capacity of a high-dimensional quantum system for complex quantum information tasks.
description: 7 pages, 6 figures
EAAM documents
Creators: name: Bell, MJ
name: Whysall, KDB
Publisher: name: Zenodo
Year: 1987
Subjects: subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: The Effective Atmospheric Angular Momentum (EAAM) is a combined project from the Met Office and the European Centre for Medium Range Weather Forecasting (ECMWF). This is a random selection of documents related to EAAM project.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1011/ The publish date on this item was its original published date. Main files in this record: EAAM_documents.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Significant Role of DNA Backbone in Mediating the Transition Origin of Electronic Excitations of B-DNA - Implication from Long Range Corrected TDDFT and Quantified NTO Analysis
Creators: name: Li, Jian-Hao
name: Chai, Jeng-Da
name: Guo, Guang-Yu
name: Hayashi, Michitoshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We systematically investigate the possible complex transition origin of electronic excitations of giant molecular systems by using the recently proposed QNTO analysis [J.-H. Li, J.-D. Chai, G. Y. Guo and M. Hayashi, Chem. Phys. Lett., 2011, 514, 362.] combined with long-range corrected TDDFT calculations. Thymine (Thy) related excitations of biomolecule B-DNA are then studied as examples, where the model systems have been constructed extracting from the perfect or a X-ray crystal (PDB code 3BSE) B-DNA structure with at least one Thy included. In the first part, we consider the systems composed of a core molecular segment (e.g. Thy, di-Thy) and a surrounding physical/chemical environment of interest (e.g. backbone, adjacent stacking nucleobases) and examine how the excitation properties of the core vary in response to the environment. We find that the orbitals contributed from DNA backbone and surrounding nucleobases often participate in a transition of Thy-related excitations affecting their composition, absorption energy, and oscillator strength. In the second part, we take into account geometrically induced variation of the excitation properties of various B-DNA segments, e.g. di-Thy, dTpdT etc., obtained from different sources (ideal and 3BSE). It is found that the transition origin of several Thy-related excitations of these segments is sensitive to slight conformational variations, suggesting that DNA with thermal motions in cells may from time to time exhibit very different photo-induced physical and/or chemical processes.
description: Main Text+Supplemental Material
Collinearity constraints for on-shell massless particle three-point functions, and implications for allowed-forbidden $n+1$-point functions
Creators: name: Adler, Stephen L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A simple collinearity argument implies that the massless particle three-point function of helicities $h_1, h_2, h_3$ with corresponding real-valued four-momenta $k_1, k_2, k_3$ taken as all incoming or all outgoing (i.e., $k_1 +k_2 +k_3=0$), vanishes by helicity conservation unless $h_1+h_2+h_3=0$. When any one particle with four-momentum $k$ is off mass shell, this constraint no longer applies; a forbidden amplitude with $h_1+h_2+h_3\neq 0$ on-shell can be nonzero off-shell, but vanishes proportionally to $k^2$ as $k$ approaches mass shell. When an on-shell forbidden amplitude is coupled to an allowed $n$-point amplitude to form an $n+1$ point function, this $k^2$ factor in the forbidden amplitude cancels the $k^2$ in the propagator, leading to a $n+1$-point function that has no pole at $k^2=0$. We relate our results for real-valued four-momenta to the corresponding selection rules that have been derived in the on-shell literature for complexified four-momenta.
description: Latex, 4 pages; v2 has typos corrected
The Re-Analysis Archive - ECMWF Re-Analysis (ERA) Project
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1995
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85125953.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html

description: This document gives an overview of the European Centre for Medium-Range Weather Forecasts (ECMWF) re-analysis (ERA) project. The goal of the project is the construction of global analysis data sets of six-hourly values over the fifteen year period 1979-1993.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1012/ The publish date on this item was its original published date. Main files in this record: ECWMF_Re-analysis_(ERA)_Project_-_The_Re-Analysis_Archive_oct_1995.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Recurrent RhoGAP gene fusion CLDN18-ARHGAP26 promotes RHOA activation and focal adhesion kinase and YAP-TEAD signalling in diffuse gastric cancer
Creators: name: Ryeom, Sandra
name: Zhang, Haisheng
name: Bass, Adam J
name: Der, Channing J
name: Bala, Pratyusha
name: Peng, Ke
name: Aitymbayev, Daulet
name: Sahu, Varun
name: Schaefer, Antje
name: Li, Tianxia
name: Sahgal, Pranshu
name: Yoon, Sam
name: Zhang, Feifei
name: Sethi, Nilay
name: Wang, Yichen
Publisher: name: BMJ
Year: 2024

description: OBJECTIVE: Genomic studies of gastric cancer have identified highly recurrent genomic alterations impacting RHO signalling, especially in the diffuse gastric cancer (DGC) histological subtype. Among these alterations are interchromosomal translations leading to the fusion of the adhesion protein CLDN18 and RHO regulator ARHGAP26. It remains unclear how these fusion constructs impact the activity of the RHO pathway and what is their broader impact on gastric cancer development. Herein, we developed a model to allow us to study the function of this fusion protein in the pathogenesis of DGC and to identify potential therapeutic targets for DGC tumours with these alterations.
DESIGN: We built a transgenic mouse model with LSL-CLDN18-ARHGAP26 fusion engineered into the Col1A1 locus where its expression can be induced by Cre recombinase. Using organoids generated from this model, we evaluated its oncogenic activity and the biochemical effects of the fusion protein on the RHOA pathway and its downstream cell biological effects in the pathogenesis of DGC.
RESULTS: We demonstrated that induction of CLDN18-ARHGAP26 expression in gastric organoids induced the formation of signet ring cells, characteristic features of DGC and was able to cooperatively transform gastric cells when combined with the loss of the tumour suppressor geneTrp53. CLDN18-ARHGAP26 promotes the activation of RHOA and downstream effector signalling. Molecularly, the fusion promotes activation of the focal adhesion kinase (FAK) and induction of the YAP pathway. A combination of FAK and YAP/TEAD inhibition can significantly block tumour growth.
CONCLUSION: These results indicate that the CLDN18-ARHGAP26 fusion is a gain-of-function DGC oncogene that leads to activation of RHOA and activation of FAK and YAP signalling. These results argue for further evaluation of emerging FAK and YAP-TEAD inhibitors for these deadly cancers.
Additional file 5 of Evolution of transcriptional regulation of histidine metabolism in Gram-positive bacteria
Creators: name: Ashniev, German A.
name: Sernova, Natalia V.
name: Shevkoplias, Aleksei E.
name: Rodionov, Ivan D.
name: Rodionova, Irina A.
name: Vitreschak, Alexey G.
name: Gelfand, Mikhail S.
name: Rodionov, Dmitry A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 5. Phylogenetic footprinting of upstream regions of candidate HisR-regulated genes.
Remarks on the first hundred years of superconductivity
Creators: name: Wysokinski, Karol I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: On the occasion of centenary of superconductivity discovery I recall some facts from the first period and attempts to understand the phenomenon. It turns out that most famous physicists of the first half of XX century have tried to solve the puzzle. Bardeen, Cooper and Schrieffer succeeded in 1957. The BCS theory successfully described all known facts and offered new predictions, which soon have been confirmed experimentally contributing to the widespread acceptance of the theory. It have found applications in nuclear physics, theory of neutron stars and cold atomic gases. The discoveries of new superconductors in the last thirty years show that simple BCS model is not enough to understand new unconventional superconductors. The studies of superconductors develop vividly and still fascinate new generations of physicists working in such diverse fields as material science and string theory.
description: 4+ pages, 3 figures
Accuracy analysis of the box-counting algorithm
Creators: name: Gorski, A. Z.
name: Drozdz, S.
name: Mokrzycka, A.
name: Pawlik, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Accuracy of the box-counting algorithm for numerical computation of the fractal exponents is investigated. To this end several sample mathematical fractal sets are analyzed. It is shown that the standard deviation obtained for the fit of the fractal scaling in the log-log plot strongly underestimates the actual error. The real computational error was found to have power scaling with respect to the number of data points in the sample ($n_{tot}$). For fractals embedded in two-dimensional space the error is larger than for those embedded in one-dimensional space. For fractal functions the error is even larger. Obtained formula can give more realistic estimates for the computed generalized fractal exponents' accuracy.
description: 3 figures
Some properties of the model of a superconductor with pair hopping and magnetic interactions at half-filling
Creators: name: Kapcia, Konrad
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present our preliminary studies of an effective model of a superconductor with short coherence length involving magnetic interactions. The Hamiltonian considered consists of (i) the effective on-site interaction U, (ii) the intersite magnetic exchange interactions (Jz, Jxy) between nearest-neighbors and (iii) the intersite charge exchange term I, determining the hopping of electron pairs between nearest-neighbor sites. In the analysis of the phase diagrams and thermodynamic properties of this model for half-filling (n=1) we have adopted the variational approach, which treats the on-site interaction term exactly and the intersite interactions within the mean-field approximation. One finds that the system considered can exhibit very interesting multicritical behaviors (including tricritical, critical-end and bicritical points) caused by the competition between magnetism and superconductivity, even for n=1. Our investigations show that, depending on the values of interaction parameters, the system at half-filling can exhibit three homogeneous phases: superconducting (SS), (anti-)ferromagnetic (F) and nonordered (NO). The transitions between ordered phases (SS, F) and the NO phase can be first order as well as second order ones, whereas SS-F transition is first order one. Temperature dependencies of the order parameters and thermodynamic properties of the system at the sequence of transitions: SS-F-NO with increasing temperature for J/I=0.3, U/I0 = 0.69 and n=1 are also presented.
description: 5 pages, 3 figures, presented at 15th National School of Superconductivity - 100 years of superconductivity, Kazimierz Dolny, Poland, October 9 - 13, 2011; final version, pdf-ReVTeX, corrected typos
Efficacy and safety of using auditory-motor entrainment to improve walking after stroke: a multi-site randomized controlled trial of InTandemTM
Creators: name: Jayaraman, Arun
name: Pohlig, Ryan T.
name: Newman, Mark
name: Awad, Louis N.
name: Bonato, Paolo
name: Harris, Brian A.
name: Lewek, Michael D.
name: Putrino, David
name: Taylor, Sabrina R.
name: Raghavan, Preeti
name: Nolan, Karen J.
name: Parker, Danielle A.
Publisher: name: Springer Nature
Year: 2024

description: Walking slowly after stroke reduces health and quality of life. This multi-site, prospective, interventional, 2-arm randomized controlled trial (NCT04121754) evaluated the safety and efficacy of an autonomous neurorehabilitation system (InTandemTM) designed to use auditory-motor entrainment to improve post-stroke walking. 87 individuals were randomized to 5-week walking interventions with InTandem or Active Control (i.e., walking without InTandem). The primary endpoints were change in walking speed, measured by the 10-meter walk test pre-vs-post each 5-week intervention, and safety, measured as the frequency of adverse events (AEs). Clinical responder rates were also compared. The trial met its primary endpoints. InTandem was associated with a 2x larger increase in speed (Δ: 0.14 ± 0.03 m/s versus Δ: 0.06 ± 0.02 m/s, F(1,49) = 6.58, p = 0.013), 3x more responders (40% versus 13%, χ2(1) ≥ 6.47, p = 0.01), and similar safety (both groups experienced the same number of AEs). The auditory-motor intervention autonomously delivered by InTandem is safe and effective in improving walking in the chronic phase of stroke.
Data Processing For Atomic Resolution EELS
Creators: name: Cueva, Paul
name: Hovden, Robert
name: Mundy, Julia A.
name: Xin, Huolin L.
name: Muller, David A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The high beam current and sub-angstrom resolution of aberration-corrected scanning transmission electron microscopes has enabled electron energy loss spectroscopic (EELS) mapping with atomic resolution. These spectral maps are often dose-limited and spatially oversampled, leading to low counts/channel and are thus highly sensitive to errors in background estimation. However, by taking advantage of redundancy in the dataset map one can improve background estimation and increase chemical sensitivity. We consider two such approaches- linear combination of power laws and local background averaging-that reduce background error and improve signal extraction. Principal components analysis (PCA) can also be used to analyze spectrum images, but the poor peak-to-background ratio in EELS can lead to serious artifacts if raw EELS data is PCA filtered. We identify common artifacts and discuss alternative approaches. These algorithms are implemented within the Cornell Spectrum Imager, an open source software package for spectroscopic analysis.
Additional file 6 of Evolution of transcriptional regulation of histidine metabolism in Gram-positive bacteria
Creators: name: Ashniev, German A.
name: Sernova, Natalia V.
name: Shevkoplias, Aleksei E.
name: Rodionov, Ivan D.
name: Rodionova, Irina A.
name: Vitreschak, Alexey G.
name: Gelfand, Mikhail S.
name: Rodionov, Dmitry A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 6. Phylogenetic footprinting of upstream regions of genes controlled by candidate Histidine-dependent translational attenuators.
Non-constant mean curvature trumpet solutions for the Einstein constraint equations
Creators: name: Leach, Jeremy
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove the existence of a large class of initial data for the vacuum Einstein equations which possess a finite number of asymptotically Euclidean and asymptotically conformally cylindrical or periodic ends. Aside from being asymptotically constant, only mild conditions on the mean curvature of these initial data sets are imposed.
A Novel Chaotic Image Encryption using Generalized Threshold Function
Creators: name: Ahadpour, Sodeif
name: Sadra, Yaser
name: ArastehFard, Zahra
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cryptography and Security (cs.CR)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this paper, after reviewing the main points of image encryption and threshold function, we introduce the methods of chaotic image encryption based on pseudorandom bit padding that the bits be generated by the novel generalized threshold function (segmentation and self-similarity) methods. These methods decrease periodic effect of the ergodic dynamical systems in randomness of the chaotic image encryption. The essential idea of this paper is that given threshold functions of the ergodic dynamical systems. To evaluate the security of the cipher image of this scheme, the key space analysis, the correlation of two adjacent pixels and differential attack were performed. This scheme tries to improve the problem of failure of encryption such as small key space and level of security.
description: 7 pages, 5 figures, Published in international Journal of Computer Applications (March 2012)
NERC environmental directions
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1996
Subjects: subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html

description: Environmental Directions summarises the result of extensive consultation with the Natural Environment Research Council's (NERC) scientific and user communities. The introduction sets the scene by identifying the six environmental and natural resource issues. The scientific challenges reflect the views of our scientific community on the exciting areas of their science for the next five to ten years. The views of NERC's diverse user community are reflected in the environmental foresight topics: technological opportunities and markets that will grow or emerge in the next 10-20 years. These elements can be linked together to show how exciting basic science will ultimately contribute to environmental and economic competitiveness.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1013/ The publish date on this item was its original published date. Main files in this record: Environmental_directions_NERC.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Coherence lengths for superconductivity in the two-orbital negative-U Hubbard model
Creators: name: Litak, G.
name: Ord, T.
name: Rago, K.
name: Vargunin, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the peculiarities of coherency in the superconductivity of two-orbital system. The superconducting phase transition is caused here by the on-site intra-orbital attractions (negative-U Hubbard model) and inter-orbital pair-transfer interaction. The dependencies of critical and noncritical correlation lengths on interaction channels and band fillings are analyzed.
description: 5 pages, 3 figures, Acta Physica Polonica (2012) in press
Large spin pumping effect in antisymmetric precession of Ni$_{79}$Fe$_{21}$/Ru/Ni$_{79}$Fe$_{21}$
Creators: name: Yang, H.
name: Li, Y.
name: Bailey, W. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In magnetic trilayer structures, a contribution to the Gilbert damping of ferromagnetic resonance arises from spin currents pumped from one layer to another. This contribution has been demonstrated for layers with weakly coupled, separated resonances, where magnetization dynamics are excited predominantly in one layer and the other layer acts as a spin sink. Here we show that trilayer structures in which magnetizations are excited simultaneously, antisymmetrically, show a spin-pumping effect roughly twice as large. The antisymmetric (optical) mode of antiferromagnetically coupled Ni$_{79}$Fe$_{21}$(8nm)/Ru/Ni$_{79}$Fe$_{21}$(8nm) trilayers shows a Gilbert damping constant greater than that of the symmetric (acoustic) mode by an amount as large as the intrinsic damping of Py ($Δα\simeq\textrm{0.006}$). The effect is shown equally in field-normal and field-parallel to film plane geometries over 3-25 GHz. The results confirm a prediction of the spin pumping model and have implications for the use of synthetic antiferromagnets (SAF)-structures in GHz devices.
Phase Diagram of Metal-Insulator Transition in System with Anderson-Hubbard Centers
Creators: name: Skorenkyy, Yuriy
name: Didukh, Leonid
name: Kramar, Oleksandr
name: Dovhopyaty, Yuriy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The model of a strongly correlated system in which periodically spaced Anderson-Hubbard centers are introduced into narrow-band metal is considered. Besides the interactions between localized magnetic moments and strong on-site Coulomb interaction, the model takes into account the hybridization of localized and band states. To study the efect of the lattice deformation on the electrical properties of the system the phonon term and elastic energy have been taken into account. Green functions for band and localized electrons have been found. On this base, the energy spectrum has been investigated as function of model parameters, temperature and external pressure. The criterion of metal-insulator transition for integer value of electron concentration has been derived and the phase diagram of the metal-insulator transition has been built.
description: presented at 12 International Simposium on Physics of Materials, Prague 4-8.09.2011
Health Information Seeking Behavior in Chronic Disease Patients: A Scoping Review
Creators: name: Yueying Jiang
name: Tang, Leiwen
name: Panpan, Tang
name: Zhao, Yuan
name: Xueqing, Wang
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: Health Services Administration
subject: Public Health
subject: Public Health Education and Promotion
subject: Health Information Technology
subject: Nursing
subject: FOS: Health sciences
subject: Information Literacy
subject: Library and Information Science

description: To define the concept of health information-seeking behavior in the field of chronic diseases management, and to explore the current research status of health information-seeking behavior in patients with chronic diseases, including the theoretical framework used, research design, main resources, methods, contents and influencing factors of health information-seeking, etc., so as to provide references for healthcare personnel to provide scientific and accurate health information for patients in the future.
Preisach images of a simple mechanical system
Creators: name: Gutowski, M. W.
name: Chyao, Amy
name: Markovskyi, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: PACS numbers: 07.05.Tp, 75.60.Ej, 45.20.da

description: This work is an an early stage of a larger project aiming at answering the question whether or not the Preisach map is really fingerprinting magnetic materials. More precisely, we are interested whether Preisach model of magnetic hysteresis indeed contains any physics or is just a convenient modeling tool. To this extent we study a very simple mechanical system, thus fully tractable, subjected to the external force. Despite of its simplicity, our model captures all the fundamental features of real magnetic materials, namely their hysteretic behavior, coercivity, remanent magnetization and saturation at high fields. Both the overall shape of major hysteresis loop as well as First Order Reversal Curves (FORC's) are reproduced quite correctly; they are very similar to those observed in magnetic materials. The model essentially consists of a single, spring loaded, rigid and rotative bar with non-zero friction torque. The length of a projection of this bar onto the direction of an external force is identified with magnetization. The friction torque and the spring constant are the only freely adjustable parameters of our model. Here we investigate, and present, their influence on the inferred Preisach maps.
description: 3 pages, 6 figures, presented at The European Conference "Physics of Magnetism" (PM'11), June 27 - July 1, 2011, Poznan, Poland
Additional file 7 of Evolution of transcriptional regulation of histidine metabolism in Gram-positive bacteria
Creators: name: Ashniev, German A.
name: Sernova, Natalia V.
name: Shevkoplias, Aleksei E.
name: Rodionov, Ivan D.
name: Rodionova, Irina A.
name: Vitreschak, Alexey G.
name: Gelfand, Mikhail S.
name: Rodionov, Dmitry A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 7. Distribution of various regulatory mechanisms for histidine metabolism genes among analyzed Firmicutes species.
Envisat Mission - Opportunities for Science and Applications
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1998
Subjects: subject: ecology and environment
subject: https://id.loc.gov/authorities/subjects/sh85081263.html
subject: https://id.loc.gov/authorities/subjects/sh85063458.html
subject: https://id.loc.gov/authorities/subjects/sh85125953.html
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html

description: Summary of Envisat and its scientific applications to different Earth areas such as; Atmosphere, Oceans, Land, Cryosphere.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1014/ The publish date on this item was its original published date. Main files in this record: Envisat_Mission_Opportunities_for_science_and_applications_jan98.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Variable selection when estimating effects in external target populations
Creators: name: Platt, Robert W
name: Keil, Alexander P
name: Webster-Clark, Michael
name: Ross, Rachael K
Publisher: name: Oxford University Press (OUP)
Year: 2024

description: External validity is an important part of epidemiologic research. To validly estimate effects in specific external target populations using a chosen effect measure (ie, "transport"), some methods require that one account for all effect measure modifiers (EMMs). However, little is known about how including other variables that are not EMMs (ie, non-EMMs) in adjustment sets affects estimates. Using simulations, we evaluated how inclusion of non-EMMs affected estimation of the transported risk difference (RD) by assessing the impacts of covariates that (1) differ (or not) between the trial and the target, (2) are associated with the outcome (or not), and (3) modify the RD (or not). We assessed variation and bias when covariates with each possible combination of these factors were used to transport RDs using outcome modeling or inverse odds weighting. Inclusion of variables that differed in distribution between the populations but were non-EMMs reduced precision, regardless of whether they were associated with the outcome. However, non-EMMs associated with selection did not amplify bias resulting from omission of necessary EMMs. Including all variables associated with the outcome may result in unnecessarily imprecise estimates when estimating treatment effects in external target populations.
Agaricus quinquepartitus Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Agaricaceae
Agaricus
Agaricus quinquepartitus

description: Agaricus quinquepartitus Linnaeus, Species Plantarum 2: 1171. 1753. "Habitat in Pratis." RCN: 8441. Type not designated. Original material: none traced. Current name:  Agaricus quinquepartitus L. (Agaricaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 268, DOI: 10.5281/zenodo.291971
Interval identification of FMR parameters for spin reorientation transition in (Ga,Mn)As
Creators: name: Gutowski, M. W.
name: Stefanowicz, W.
name: Proselkov, O.
name: Sadowski, J.
name: Sawicki, M.
name: Zuberek, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: PACS numbers: 07.05.Kf, 68.47.Fg, 75.30.Gw, 75.50.Pp, 75.70.-i, 75.70.Ak, 75.70.Cn, 75.70.Rf, 76.50.+g

description: In this work we report results of ferromagnetic resonance studies of a 6% 15 nm (Ga,Mn)As layer, deposited on (001)-oriented GaAs. The measurements were performed with in-plane oriented magnetic field, in the temperature range between 5K and 120K. We observe a temperature induced reorientation of the effective in-plane easy axis from [-110] to [110] direction close to the Curie temperature. The behavior of magnetization is described by anisotropy fields, H_{eff} (= 4\piM -H_{2\perp}), H_{2\parallel}, and H_{4\parallel}. In order to precisely investigate this reorientation, numerical values of anisotropy fields have been determined using powerful - but still largely unknown - interval calculations. In simulation mode this approach makes possible to find all the resonance fields for arbitrarily oriented sample, which is generally intractable analytically. In 'fitting' mode we effectively utilize full experimental information, not only those measurements performed in special, distinguished directions, to reliably estimate the values of important physical parameters as well as their uncertainties and correlations.
description: 3 pages, 3 figures. Presented at The European Conference "Physics of Magnetism 2011" (PM'11), June 27 - July 1, 2011, Poznan, Poland
Validation and Cross-Cultural Adaptation of Arabic Version of the Rhinosinusitis Disability Index (ar-RSDI)
Creators: name: Kabbash, Ibrahim
name: Elsheikh, Mohamed
name: El-Hamshary, Ahmed
name: Ammar, Mostafa
name: Tomoum, Mohamed
name: Senior, Brent
Publisher: name: Egyptian Knowledge Bank
Year: 2024

description: Objective: Arabic is ranked fourth in the most spoken languages after Chinese, English, and Spanish. Our goal was to assess the validity of Arabic version of the Rhinosinusitis Disability index (ar-RSDI) which is rhinosinusitis-specific instrument to assess quality of life (QoL) of affected patients.Patients and Methods: Our study included 302 chronic rhinosinusitis (CRS) patients and 150 healthy controls. The RSDI English version was translated to Arabic and pretest trial was performed. We assessed the internal consistency using Cronbach´s alpha test. Correlation between item scores and total score of the ar-RSDI, and test-retest validity were evaluated using Spearman's ranks correlation coefficient. The ar-RSDI ability to discriminate between patients and controls, and sensitivity to changes after management of CRS were assessed by Mann-Whitney, and Wilcoxon signed ranks tests, respectively.Results: The ar-RDSI showed high internal consistency. Strong correlation between each item and subscale scores with the total ar-RDSI scores was detected. The test-retest validity of the ar-RSDI revealed a significant association between the total ar-RSDI and its subscale scores on the first and second readings. The ar-RSDI was able to distinguish between patients and controls where the differences between their mean values were all significant. There were significant differences in the ar-RSDI total and subscale scores for the patients' group before and after the intervention, which reflect the ar-RSDI ability to detect the sensitivity to changes.Conclusion: The ar-RSDI is a simple and reliable tool with good internal consistency, reproducibility, and validity for the QoL assessment in Arabic-speaking CRS patients in clinical practice.
Surface spin-electron acoustic waves in magnetically ordered metals
Creators: name: Andreev, Pavel A.
name: Kuz'menkov, L. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Degenerate plasmas with motionless ions show existence of three surface waves: the Langmuir wave, the electromagnetic wave, and the zeroth sound. Applying the separated spin evolution quantum hydrodynamics to half-space plasma we demonstrate the existence of the surface spin-electron acoustic wave (SSEAW). We study dispersion of the SSEAW. We show that there is hybridization between the surface Langmuir wave and the SSEAW at rather small spin polarization. In the hybridization area the dispersion branches are located close to each other. In this area there is a strong interaction between these waves leading to the energy exchange. Consequently, generating the Langmuir waves with the frequencies close to hybridization area we can generate the SSEAWs. Thus, we report a method of creation of the SEAWs.
description: 5 pages, 3 figures
A Random Matrix Approach to Dynamic Factors in macroeconomic data
Creators: name: Snarska, Małgorzata
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We show how random matrix theory can be applied to develop new algorithms to extract dynamic factors from macroeconomic time series. In particular, we consider a limit where the number of random variables N and the number of consecutive time measurements T are large but the ratio N / T is fixed. In this regime the underlying random matrices are asymptotically equivalent to Free Random Variables (FRV).Application of these methods for macroeconomic indicators for Poland economy is also presented.
description: arXiv admin note: text overlap with arXiv:physics/0512090 by other authors
Landsat Thematic Mapper (TM) CCT Formats Standards
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1987
Subjects: subject: data and information
subject: computer science
subject: https://id.loc.gov/authorities/subjects/sh85125953.html
subject: https://id.loc.gov/authorities/subjects/sh85042383.html

description: This new revision of the Landsat Thematic Mapper (TM) Computer Compatible Tape (CCT) Format Standards has been produced for two main reasons: - to describe features that have been changed or added to the digital product since last revision of this document (e.g. calibration volume) - to introduce a new standard to represent the description, explanation and content of each record on the CCT. The records are presented as a table in the sequence they appear for the first time on the tape, and all the information concerning each field is grouped allowing easy comparison between format and real data.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1015/ The publish date on this item was its original published date. Main files in this record: ESA-EARTHNET_-_LANDSAT_Thematic_Mapper_(TM)_CCT_Formats_standards_oct87_FINAL.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend. Transferred to CEDA document repository community on Zenodo on 2022-11-24