cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reform and Practice of Computer Application Technology Major Construction and Development in Higher Vocational Colleges in China -- Taking Jiangxi Vocational College of Applied Technology as An Example
Creators: name: Xie, Yufei
name: Liu, Yue
name: Zou, Fan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: K.3.2

description: This study takes the development path of computer application technology specialty construction in Higher Vocational Colleges under the background of high-level higher vocational schools and specialty construction plan with Chinese characteristics (double high plan) as the main research object, and puts forward the core concept of computer application technology specialty construction and development in Higher Vocational Colleges in China through the practice of computer application technology specialty construction and development reform in recent years The main measures and construction objectives provide specific experience and solutions for deepening the reform of computer application technology specialty in higher vocational colleges.
The charge-asymmetric nonlocally-determined local-electric (CANDLE) solvation model
Creators: name: Sundararaman, Ravishankar
name: Goddard, William A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Many important applications of electronic structure methods involve molecules or solid surfaces in a solvent medium. Since explicit treatment of the solvent in such methods is usually not practical, calculations often employ continuum solvation models to approximate the effect of the solvent. Previous solvation models either involve a parametrization based on atomic radii, which limits the class of applicable solutes, or based on solute electron density, which is more general but less accurate, especially for charged systems. We develop an accurate and general solvation model that includes a cavity that is a nonlocal functional of both solute electron density and potential, local dielectric response on this nonlocally-determined cavity, and nonlocal approximations to the cavity-formation and dispersion energies. The dependence of the cavity on the solute potential enables an explicit treatment of the solvent charge asymmetry. With only three parameters per solvent, this `CANDLE' model simultaneously reproduces solvation energies of large datasets of neutral molecules, cations and anions with a mean absolute error of 1.8 kcal/mol in water and 3.0 kcal/mol in acetonitrile.
description: 8 pages, 6 figures
Gutzwiller Charge Phase Diagram of Cuprates, including Electron-Phonon Coupling Effects
Creators: name: Markiewicz, R. S.
name: Seibold, G.
name: Lorenzana, J.
name: Bansil, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Besides significant electronic correlations, high-temperature superconductors also show a strong coupling of electrons to a number of lattice modes. Combined with the experimental detection of electronic inhomogeneities and ordering phenomena in many high-T_c compounds, these features raise the question as to what extent phonons are involved in the associated instabilities. Here we address this problem based on the Hubbard model including a coupling to phonons in order to capture several salient features of the phase diagram of hole-doped cuprates. Charge degrees of freedom, which are suppressed by the large Hubbard U near half-filling, are found to become active at a fairly low doping level. We find that possible charge order is mainly driven by Fermi surface nesting, with competition between a near-(pi,pi) order at low doping and antinodal nesting at higher doping, very similar to the momentum structure of magnetic fluctuations. The resulting nesting vectors are generally consistent with photoemission and tunneling observations, evidence for charge density wave (CDW) order in YBa_2Cu_3O_{7-delta} including Kohn anomalies, and suggestions of competition between one- and two-q-vector nesting.
description: This is a revised version of arXiv:1207.5715. 25 pages, 5 figures, plus Supplement [7 pages, 7 figures], available as a pdf [click on other, then Download Source, & extract pdf file from zip] Manuscript is under consideration at the NJP
title: Η έννοια της έξυπνης πόλης
titleType: AlternativeTitle
Creators: name: Παντελίδης, Πρόδρομος
Publisher: name: University of Thessaly
Year: 2017
Subjects: subject: Πόλεις και κωμοπόλεις -- Ανάπτυξη
subject: Τεχνολογικές καινοτομίες
subject: Οικονομική ανάπτυξη

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
How FAIR is my data? Benefits and pitfalls of quantitative assessment of FAIRness
Creators: name: Videgain Barranco, Pedro
name: Kubin, Markus
name: Bröder, Jens
name: Gilein, Astrid
name: Günther, Gerrit
name: Preuß, Gabriel
name: Hofmann, Volker
name: Mannix, Oonagh
name: Sandfeld, Stefan
Publisher: name: Zenodo
Year: 2022
Subjects: FAIR data
Helmholtz Association
FAIR Assessment
F-UJI
FAIR Data Maturity Model
Helmholtz Metadata Collaboration
HMC

description: Publishing data in a FAIR 1 way is already part of good scientific practice. While institutional policy as well as funding and publishing guidelines support this, scientist, technicians, and data stewards struggle to realize it when handling their research data. The reason is that the FAIR principles are high level principles and guidelines rather than concrete implementations. This is one of the key missions of HMC: support the Helmholtz community in making their data FAIR in an easy and comparable way. Developing a sustainable strategy for this requires a detailed understanding of practices, strengths, and deficiencies with respect to applying each of the FAIR principles. Here, tools that assess data FAIRness in comparison to a set of specific implementations in a quantitative fashion can help. When handling a dataset, such measures can aid the understanding of how FAIR a dataset actually is, as well as how to improve its FAIRness. In this Blitzlicht-Talk, HMC Hub Matter and Hub Information will jointly present insights, benefits, and pitfalls from applying and further developing such metrics. For this we used the F-UJI tool 2,3, a python-based development by the FAIRsFAIR project, in two complementary projects. In a first, "repository-based" approach, we evaluate data repositories based on the data contained. The analyzed results are then used towards informing infrastructural development towards improving data FAIRness. In a second, "publication-based" approach, data publications from individual research centers or specific fields are evaluated with F-UJI. The results are gathered and visualized in an interactive pilot dashboard. This helps to identify and quantify the usage of repositories by Helmholtz‘s research communities as well as to better support the development of relevant infrastructure for FAIR data practices. We discuss our experience from these automatic FAIR assessment approaches and compare them to complementary insights from a manual FAIR assessment of a particular data pipeline 4 using the FAIR Data Maturity Model 5. We discuss future plans for metric development and the potential use of such metrics in user-sided tooling. [1] https://doi.org/10.1038/sdata.2016.18
 [2] https://doi.org/10.5281/zenodo.4063720
 [3] https://doi.org/10.5281/zenodo.6461229
 [4] https://doi.org/10.5281/zenodo.6059994
 [5] https://doi.org/10.15497/rda00050
Environmental Deterioration and Our Health
Creators: name: Deo, Rabindra Kumar
Publisher: name: Zenodo
Year: 2020

description: This is to certify that RABINDRA KUMAR DEO of SIDO KANHU MURMU UNIVERSITY, DUMKA (JHARKHAND) participated in the International Webinar on “Environmental Deterioration and Our Health” jointly organized by Bankura Christian College, Bankura, West Bengal and Kabi Jagadram Roy Govt. General Degree College, Mejia, Bankura, West Bengal.
The Debris Disk of Solar Analogue $τ$ Ceti: Herschel Observations and Dynamical Simulations of the Proposed Multiplanet System
Creators: name: Lawler, S. M.
name: Di Francesco, J.
name: Kennedy, G. M.
name: Sibthorpe, B.
name: Booth, M.
name: Vandenbussche, B.
name: Matthews, B. C.
name: Holland, W. S.
name: Greaves, J.
name: Wilner, D. J.
name: Tuomi, M.
name: Blommaert, J. A. D. L.
name: de Vries, B. L.
name: Dominik, C.
name: Fridlund, M.
name: Gear, W.
name: Heras, A. M.
name: Ivison, R.
name: Olofsson, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: $τ$ Ceti is a nearby, mature G-type star very similar to our Sun, with a massive Kuiper Belt analogue (Greaves et al. 2004) and possible multiplanet system (Tuomi et al. 2013) that has been compared to our Solar System. We present Herschel Space Observatory images of the debris disk, finding the disk is resolved at 70 and 160 microns, and marginally resolved at 250 microns. The Herschel images and infrared photometry from the literature are best modelled using a wide dust annulus with an inner edge between 1-10 AU and an outer edge at ~55 AU, inclined from face-on by 35$\pm$10 degrees, and with no significant azimuthal structure. We model the proposed tightly-packed planetary system of five super-Earths and find that the innermost dynamically stable disk orbits are consistent with the inner edge found by the observations. The photometric modelling, however, cannot rule out a disk inner edge as close to the star as 1 AU, though larger distances produce a better fit to the data. Dynamical modelling shows that the 5 planet system is stable with the addition of a Neptune or smaller mass planet on an orbit outside 5 AU, where the Tuomi et al. analysis would not have detected a planet of this mass.
description: accepted to MNRAS
Power allocation with stackelberg game in femtocell networks: a self-learning approach
Creators: name: Wang, Wenbo
name: Kwasinski, Andres
name: Han, Zhu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: This paper investigates the energy-efficient power allocation for a two-tier, underlaid femtocell network. The behaviors of the Macrocell Base Station (MBS) and the Femtocell Users (FUs) are modeled hierarchically as a Stackelberg game. The MBS guarantees its own QoS requirement by charging the FUs individually according to the cross-tier interference, and the FUs responds by controlling the local transmit power non-cooperatively. Due to the limit of information exchange in intra- and inter-tiers, a self-learning based strategy-updating mechanism is proposed for each user to learn the equilibrium strategies. In the same Stackelberg-game framework, two different scenarios based on the continuous and discrete power profiles for the FUs are studied, respectively. The self-learning schemes in the two scenarios are designed based on the local best response. By studying the properties of the proposed game in the two situations, the convergence property of the learning schemes is provided. The simulation results are provided to support the theoretical finding in different situations of the proposed game, and the efficiency of the learning schemes is validated.
description: 2014 Eleventh Annual IEEE International Conference on Sensing, Communication, and Networking (SECON) (SECON 2014)
title: Τάσεις χωρικής σύγκλισης της απασχόλησης των πολιτικών μηχανικών στον οικοδομικό κλάδο, στην Ελλάδα
titleType: AlternativeTitle
Creators: name: Μπέτσιος, Αθανάσιος Ν.
Publisher: name: University of Thessaly
Year: 2017
Subjects: subject: Οικονομική κρίση -- Επιπτώσεις
subject: Πολιτικοί μηχανικοί
subject: Κατασκευαστικός Κλάδος -- Ελλάδα

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
High-resolution abundance analysis of red giants in the globular cluster NGC 6522
Creators: name: Barbuy, B.
name: Chiappini, C.
name: Cantelli, E.
name: Depagne, E.
name: Pignatari, M.
name: Hirschi, R.
name: Cescutti, G.
name: Ortolani, S.
name: Hill, V.
name: Zoccali, M.
name: Minniti, D.
name: Trevisan, M.
name: Bica, E.
name: Gómez, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The [Sr/Ba] and [Y/Ba] scatter observed in some galactic halo stars that are very metal-poor stars and in a few individual stars of the oldest known Milky Way globular cluster NGC 6522,have been interpreted as evidence of early enrichment by massive fast-rotating stars (spinstars). Because NGC 6522 is a bulge globular cluster, the suggestion was that not only the very-metal poor halo stars, but also bulge stars at [Fe/H]~-1 could be used as probes of the stellar nucleosynthesis signatures from the earlier generations of massive stars, but at much higher metallicity. For the bulge the suggestions were based on early spectra available for stars in NGC 6522, with a medium resolution of R~22,000 and a moderate signal-to-noise ratio. The main purpose of this study is to re-analyse the NGC 6522 stars previously reported using new high-resolution (R~45,000) and high signal-to-noise spectra (S/N>100). We aim at re-deriving their stellar parameters and elemental ratios, in particular the abundances of the neutron-capture s-process-dominated elements such as Sr, Y, Zr, La, and Ba, and of the r-element Eu. High-resolution spectra of four giants belonging to the bulge globular cluster NGC 6522 were obtained at the 8m VLT UT2-Kueyen telescope with the UVES spectrograph in FLAMES-UVESconfiguration. The spectroscopic parameters were derived based on the excitation and ionization equilibrium of \ion{Fe}{I} and \ion{Fe}{II}. Our analysis confirms a metallicity [Fe/H] = -0.95+-0.15 for NGC 6522, and the overabundance of the studied stars in Eu (with +~0.2 < [Eu/Fe] < +~0.4) and alpha-elements O and Mg. The neutron-capture s-element-dominated Sr, Y, Zr, Ba, La now show less pronounced variations from star to star. Enhancements are in the range 0.0 < [Sr/Fe] < +0.4, +0.23 < [Y/Fe] < +0.43, 0.0 < [Zr/Fe] < +0.4, 0.0 < [La/Fe] < +0.35,and 0.05 < [Ba/Fe] < +0.55.
description: date of acceptation: 31/07/2014, in press, 24 pages, 19 figures,Astronomy & Astrophysics, 2014
NMR investigation of spin correlations in BaCo2As2
Creators: name: Ahilan, K.
name: Imai, T.
name: Sefat, A. S.
name: Ning, F. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use NMR techniques to investigate the magnetic properties of BaCo2As2 single crystals, the non-superconducting end member of the Co-substituted iron-pnictide high Tc superconductor Ba(Fe1-xCox)2As2 with x = 1. We present 75As NMR evidence for enhancement of low frequency spin fluctuations below ~ 100 K. This enhancement is accompanied by that of static uniform spin susceptibility at the wave vector q = 0, suggesting that the primary channel of the spin correlations is ferromagnetic rather than antiferromagnetic. Comparison between the NMR Knight shift 75K and bulk susceptibility chi(bulk) data uncovers the presence of two separate components of spin susceptibility with distinct temperature dependences, presumably because multiple electronic bands crossing the Fermi energy play different roles in the electronic properties of BaCo2As2.
description: Submitted to PRB
Tungsten Nanowire Based Hyperbolic Metamaterial Emitters for Near-field Thermophotovoltaic Applications
Creators: name: Chang, Jui-Yung
name: Yang, Yue
name: Wang, Liping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recently, near-field radiative heat transfer enhancement across nanometer vacuum gaps has been intensively studied between two hyperbolic metamaterials (HMMs) due to unlimited wavevectors and high photonic density of state. In this work, we theoretically analyze the energy conversion performance of a thermophotovoltaic (TPV) cell made of In0.2Ga0.8Sb when paired with a HMM emitter composed of tungsten nanowire arrays embedded in Al2O3 host at nanometer vacuum gaps. Fluctuational electrodynamics integrated with effective medium theory and anisotropic thin-film optics is used to calculate the near-field radiative heat transfer. It is found that the spectral radiative energy is enhanced by the epsilon-near-zero and hyperbolic modes at different polarizations. As a result, the power output from a semi-infinite TPV cell is improved by 1.85 times with the nanowire HMM emitter over that with a plain tungsten emitter at a vacuum gap of 10 nm. Moreover, by using a thin TPV cell with 10 um thickness, the conversion efficiency can be greatly improved from 19.5% to 31.5% without affecting the power generation, due to the total internal reflection occurring at the bottom cell interface that minimizes the sub-bandgap spectral radiative energy. Furthermore, the effects of a TPV cell and a nanowire emitter with finite thicknesses are also studied. The result shows that the maximum efficiency of 32.2% is achieved with an optimal cell thickness of 3 um while the nanowire HMM emitter should be thick enough to be opaque. The fundamental understanding and insights obtained here will facilitate the design and application of novel materials in enhancing near-field TPV energy conversion.
A Framework for Practical Parallel Fast Matrix Multiplication
Creators: name: Benson, Austin R.
name: Ballard, Grey
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Mathematical Software (cs.MS)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.4

description: Matrix multiplication is a fundamental computation in many scientific disciplines. In this paper, we show that novel fast matrix multiplication algorithms can significantly outperform vendor implementations of the classical algorithm and Strassen's fast algorithm on modest problem sizes and shapes. Furthermore, we show that the best choice of fast algorithm depends not only on the size of the matrices but also the shape. We develop a code generation tool to automatically implement multiple sequential and shared-memory parallel variants of each fast algorithm, including our novel parallelization scheme. This allows us to rapidly benchmark over 20 fast algorithms on several problem sizes. Furthermore, we discuss a number of practical implementation issues for these algorithms on shared-memory machines that can direct further research on making fast algorithms practical.
Research on The Cultivation Path of Craftsman Spirit in Higher Vocational Education Based on Survey Data
Creators: name: Xie, Yufei
name: Cui, Jing
name: Wang, Mengdie
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business
subject: K.3.1

description: With the development of China's economy and society, the importance of "craftsman's spirit" has become more and more prominent. As the main educational institution for training technical talents, higher vocational colleges vigorously promote the exploration of the cultivation path of craftsman spirit in higher vocational education, which provides new ideas and directions for the reform and development of higher vocational education, and is the fundamental need of the national innovation driven development strategy. Based on the questionnaire survey of vocational students in a certain range, this paper analyzes the problems existing in the cultivation path of craftsman spirit in Higher Vocational Education from multiple levels and the countermeasures.
Three-Loop Contributions to Hyperfine Splitting: Muon Loop Light-by-Light Insertion and Other Closed Lepton Loops
Creators: name: Eides, Michael I.
name: Shelyuto, Valery A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The muon and tauon light-by-light scattering contributions to hyperfine splitting in muonium are calculated. These results conclude calculation of all hard three-loop contributions to hyperfine splitting containing graphs with closed fermion loops. We discuss the special role that the lepton anomalous magnetic moments play in these calculations. The full result for all three-loop radiative-recoil corrections to hyperfine splitting generated by the graphs with closed lepton loops is presented.
description: 23 pages, 9 figures
title: Η επίδραση της κρίσης στις χωρικές επιπτώσεις του αυτοκινητόδρομου Ε-65
titleType: AlternativeTitle
Creators: name: Μηλιώτης, Στέφανος Α.
Publisher: name: University of Thessaly
Year: 2016
Subjects: subject: Αυτοκινητόδρομοι -- Ελλάδα
subject: Δρόμοι -- Σχεδιασμός
subject: Χωροταξία -- Ελλάδα

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
Maternal Characteristics and Prenatal Care: Associations with Infant Health and Postpartum Maternal Wellbeing
Creators: name: Nordgren, Inga Joy
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Preventative health care
Social determinants of health
Health equity

description: Maternal and infant health continues to be a compelling and urgent topic in the United States with prenatal care at its forefront for prevention of adverse outcomes. This study explored differences in adverse infant birth outcomes (i.e., preterm birth, low birthweight, and NICU stays) and postpartum maternal wellbeing outcomes (i.e., social support, depression, and confidence) related to the sociodemographic and baseline factors of mothers and their prenatal care experiences. Data was analyzed from the publicly available Listening to Mothers III dataset. Comprised of 2400 online-survey participants who gave birth to singleton infants in U.S. hospitals between 2011 and 2012. Structural equation modeling was employed with FIML to account for missing data. The model examined mediators of prenatal care (i.e., responsive provider behavior, week of first visit, duration of visits, group prenatal care; GPC) between maternal predictors and outcomes. Of infants in the sample, 8% were born preterm, 8% were born low birthweight, and 18% were admitted into the NICU. Depression and smoking during pregnancy, as well as participating in GPC, resulted in 15%, 20% and 18% greater proportions of infant NICU stays, respectively. For postpartum maternal wellbeing, participating in GPC increased the proportion of maternal confidence by 18%. Mothers who received responsive provider behavior had higher rates of social support (b = 0.28, p < .001), reported less depression (b = -0.19, p < .001), and felt more confident (b = 0.07, p = .02). Findings from this study suggest that the most impactful actions for prenatal care providers to take would be to provide increased support to mothers who identify as needing treatment for depression or smoking during pregnancy to best improve infant health through fewer admissions into the NICU, and to continue to bolster the responsiveness in which providers interact with patients to improve overall postpartum maternal wellbeing.
Measurement of the temperature decrease in evaporating soap films
Creators: name: Boulogne, François
name: Restagno, Frédéric
name: Rio, Emmanuelle
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent advances have demonstrated that evaporation can play a significant role on soap film stability, which is a key concern in many industrial areas but also for children playing with bubbles. Thus, evaporation leads to a film thinning but also to a film cooling, which has been overlooked for soapy objects. Here, we study the temperature variation of an evaporating soap film for different values of relative humidity and glycerol concentrations. We evidence that the temperature of soap films can decrease after their creation up to 8$~^\text{o}$C. We propose a model describing the temperature drop of soap films after their formation that is in quantitative agreement with our experiments. We emphasize that this cooling effect is significant and must be carefully considered in future studies on the dynamics of soap films.
description: 6 pages
Correlated Diskoid-like Electronic States
Creators: name: Baskin, Artem
name: Sadeghpour, Hossein R.
name: Kral, Petr
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study highly excited diskoid-like electronic states formed in the vicinity of charged and strongly polarizable diskotic nanostructures, such as circular graphene flakes. First, we study the nature of such extended states in a simple two-electron model. The two electrons are attached to a point-like nucleus with a charge 2+, where the material electron is forced to move within a 2D disk area centered at the nucleus, while the extended electron is free to move in 3D. Pronounced and complex correlations are revealed in the diskoid-like states. We also develop semiclassical one-electron models of such diskotic systems and explain how the one-electron and many-electron solutions are related.
description: 10 pages, 10 figures
Respiratory complexes from Thermus thermophilus: Native and recombinant production of both complex II and caa3-type cytochrome c oxidase for structural studies
Creators: name: Rose O’Kane, Sarah
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Four membrane complexes constitute the respiratory chain of eukaryotes and prokaryotes. Two of these enzymes form the focus for this thesis - succinate:quinone reductase (Complex II; SQR) which oxidises succinate to fumarate as part of the Krebs (TCA) cycle while contributing electrons to the respiratory chain, and caa3-type cytochrome c oxidase (Complex IV) which is the terminal electron acceptor of the respiratory chain reducing dioxygen to water, while simultaneously pumping protons across the membrane to produce ATP. The source of these enzyme complexes is the extreme thermophilic bacterium Thermus thermophilus, which is used as the fundamental source of the native enzymes by large scale and extensive purification and manipulated as the expression strain for the production of the homologous recombinant enzymes. Our interest in these enzymes is from two perspectives; (i) the generation of the endogenous native enzymes to assist the investigation into the function of these protein complexes, in addition to supporting crystallisation trials for subsequent structural studies, and (ii) the generation of homologous recombinant enzymes to analyse the mechanism of action of these protein targets by site directed mutagenesis. The native and recombinant SQRs have been purified and enzymes characterised by various biochemical and biophysical techniques. Crystals were obtained for the native and recombinant Complex II by the vapour diffusion, sitting drop method in the presence of the detergent n-dodecyl-β-D-maltoside.The native and recombinant caa3-type cytochrome c oxidases have also been purified and characterised. The recombinant enzyme’s preliminary biochemical characterisation is comparable to that of the native enzyme. Furthermore, a strain deficient in the native enzyme (∆caa3) has been successfully produced by double homologous recombination, as determined by DNA sequencing, which indicates that the ba3-type cytochrome c oxidase enzyme replaces the cytochrome c oxidase activity under aerobic conditions when required.
Understanding Data Management Practices in Research Field Matter: Conclusions from a Multi-Method Approach
Creators: name: Kubin, Markus
name: Günther, Gerrit
name: Gilein, Astrid
name: Preuß, Gabriel
name: Cristiano, Luigia
name: Walter, Konstantin Pascal
name: Serve, Vivien
name: Görzig, Heike
name: Mannix, Oonagh
Publisher: name: Zenodo
Year: 2022
Subjects: Helmholtz Metadata Collaboration
Hub Matter
Research Data Management

description: Supporting Helmholtz’s research communities in making their data FAIR is one of the key missions of HMC. A multi-method approach combining quantitative and qualitative methods was developed to understand current data management practices in research field Matter. Quantitative information was obtained from data that was self-reported by Helmholtz’s researchers in the HMC Community Survey 2021. Complementary data on Open and FAIR data practices in research field Matter, gathered in a data mining approach, is visualized in a dashboard. Qualitative understanding of community-specific FAIR data practices was obtained from a manual FAIR assessment based on the FAIR Data Maturity Model. Here we report on a combined interpretation of HMC Hub Matter’s findings from this multi-method approach. Three key areas for future action by HMC Hub Matter are discussed, such as (1) bridging policy and practicability, (2) creating a culture of data reuse, and (3) monitoring and engaging with technical infrastructure.
Tuning Photoinduced Terahertz Conductivity in Monolayer Graphene: Optical Pump Terahertz Probe Spectroscopy
Creators: name: Kar, Srabani
name: Mohapatra, Dipti R.
name: Freysz, Eric
name: Sood, A. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Optical pump-terahertz probe differential transmission measurements of as-prepared single layer graphene (AG)(unintentionally hole doped with Fermi energy $E_F$ at $\sim$180 meV), nitrogen doping compensated graphene (NDG) with $E_F$ $\sim$10 meV and thermally annealed doped graphene (TAG) are examined quantitatively to understand the opposite signs of photo-induced dynamic terahertz conductivity $Δσ$. It is negative for AG and TAG but positive for NDG. We show that the recently proposed mechanism of multiple generations of secondary hot carriers due to Coulomb interaction of photoexcited carriers with the existing carriers together with the intraband scattering can explain the change of photoinduced conductivity sign and its magnitude. We give a quantitative estimate of $Δσ$ in terms of controlling parameters - the Fermi energy $E_F$ and momentum relaxation time $τ$. Further, the cooling of photoexcited carriers is analyzed using super-collision model which involves defect mediated collision of the hot carriers with the acoustic phonons, thus giving an estimate of the deformation potential.
description: 23 pages, 11 figures
Magnetic fluxes of solar active regions of different magneto-morphological classes: I. Cyclic variations
Creators: name: Abramenko, Valentina I.
name: Suleymanova, Regina A.
name: Zhukova, Anastasija V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Data for 3046 solar active regions (ARs) observed since May 12, 1996 to December 27, 2021 were utilized to explore how the magnetic fluxes from ARs of different complexity follow the solar cycle. Magnetograms from the Michelson Doppler Imager instrument on the Solar and Heliospheric Observatory and from the Helioseismic and Magnetic Imager instrument on the Solar Dynamics Observatory were utilized. Each AR was classified as a regular bipolar AR (classes A1 or A2), or as an irregular bipolar AR (class B1), or as a multipolar AR (classes B2 or B3). Unipolar ARs were segregated into a specific class U. We found the following results. Unsigned magnetic fluxes from ARs of different classes evolve synchronously following the cycle, the correlation coefficient between the flux curves varies in a range of (0.70 - 0.99). The deepest solar minimum is observed simultaneously for all classes. Only the most simple ARs were observed during a deepest minimum: A1- and B1-class ARs. The overall shape of a cycle is governed by the regular ARs, whereas the fine structure of a solar maximum is determined by the most complex irregular ARs. Approximately equal amount of flux (45$-$50% of the total flux) is contributed by the A-class and B-class ARs during a solar maximum. Thus, observations allow us to conclude that the appearance of ARs with the magnetic flux above 10$^{21}$ Mx is caused by the solar dynamo that operates as a unique process displaying the properties of a non-linear dynamical dissipative system with a cyclic behaviour and unavoidable fluctuations.
description: 10 pages, accepted by MNRAS
-1-Phenomena for the pluri $χ_y$-genus and elliptic genus
Creators: name: Li, Ping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 58J20, 58J26, 11F11, 11F50

description: Several independent articles have observed that the Hirzebruch $χ_y$-genus has an important feature, which the author calls -1-phenomenon and tells us that the coefficients of the Taylor expansion of the $χ_y$-genus at $y=-1$ have explicit expressions. Hirzebruch's original $χ_y$-genus can be extended towards two directions: the pluri-case and the case of elliptic genus. This paper contains two parts in which we investigate the -1-phenomena in these two generalized cases respectively and show that in each case there exists a -1-phenomenon in a suitable sense. Our main results in the first part have an application, which states that all characteristic numbers (Chern numbers and Pontrjagin numbers) on manifolds can be expressed, in a very explicit way, in terms of some rationally linear combination of indices of some elliptic operators. This gives an analytic interpretation of characteristic numbers and affirmatively answers a question posed by the author several years ago. The second part contains our attempt to generalize this -1-phenomenon to elliptic genus, a modern version of the $χ_y$-genus. We first extend the elliptic genus of an almost-complex manifold to a twisted version where an extra complex vector bundle is involved, and show that it is a weak Jacobi form under some assumptions. A suitable manipulation on the theory of Jacobi form will produce new modular forms from this weak Jacobi form and thus much arithmetic information related to the underlying manifold can be obtained, in which the -1-phenomenon of the original $χ_y$-genus is hidden.
description: 18 pages
Quasi-Cherenkov Radiation from Relativistic Particles Passing Through a Photonic Crystal
Creators: name: Baryshevsky, V. G.
name: Gurinovich, A. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The expressions for spectral-angular distribution of quasi-Cherenkov radiation emitted by a relativistic particle traversing a photonic crystal are derived. It is shown that for a relativistic particle, passing through a photonic crystal formed by periodically strained threads, the intensity of quasi-Cherenkov radiation emitted at small angles to the direction of particle motion, as contrasted to ordinary Cherenkov radiation, exhibits anisotropic properties as the the photon momentum is rotated about the direction of particle motion (as the crystal is rotated about the direction of particle motion at fixed-angle observation of the outcoming photon). The intensity of quasi-Cherenkov radiation in terahertz and optical ranges is shown to be high enough to allow the experimental study of quasi-Cherenkov radiation in these frequency ranges.
description: 24 pages, 3 eps figures
Performance Analysis of a Heavy-Duty Hybrid-Electric Truck with a Micro-pilot Natural Gas Engine in Real-World Highway Driving Conditions
Creators: Long, Yanxiang
Jiang, Luo
Moghadasi, Sina
Munshi, Sandeep
McTaggart-Cowan, Gordon
Shahbakhti, Mahdi
Publisher: name: University of Alberta Library
Year: 2022

Conference Abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
ASR in PPAOS (Tetzloff et al., 2024)
Creators: name: Tetzloff, Katerina A.
name: Wiepert, Daniela
name: Botha, Hugo
name: R. Duffy, Joseph
name: Clark, Heather M.
name: L. Whitwell, Jennifer
name: A. Josephs, Keith
name: Utianski, Rene L.
Publisher: name: ASHA journals
Year: 2024
Subjects: classificationCode: 420110
subject: Speech pathology
classificationCode: 470410
subject: Phonetics and speech science

description: Introduction: Transcribing disordered speech can be useful when diagnosing motor speech disorders such as primary progressive apraxia of speech (PPAOS), who have sound additions, deletions, and substitutions, or distortions and/or slow, segmented speech. Since transcribing speech can be a laborious process and requires an experienced listener, using automatic speech recognition (ASR) systems for diagnosis and treatment monitoring is appealing. This study evaluated the efficacy of a readily available ASR system (wav2vec 2.0) in transcribing speech of PPAOS patients to determine if the word error rate (WER) output by the ASR can differentiate between healthy speech and PPAOS and/or among its subtypes, whether WER correlates with AOS severity, and how the ASR’s errors compare to those noted in manual transcriptions.Method: Forty-five patients with PPAOS and 22 healthy controls were recorded repeating 13 words, 3 times each, which were transcribed manually and using wav2vec 2.0. The WER and phonetic and prosodic speech errors were compared between groups, and ASR results were compared against manual transcriptions.Results: Mean overall WER was 0.88 for patients and 0.33 for controls. WER significantly correlated with AOS severity and accurately distinguished between patients and controls but not between AOS subtypes. The phonetic and prosodic errors from the ASR transcriptions were also unable to distinguish between subtypes, whereas errors calculated from human transcriptions were. There was poor agreement in the number of phonetic and prosodic errors between the ASR and human transcriptions.Conclusions: This study demonstrates that ASR can be useful in differentiating healthy from disordered speech and evaluating PPAOS severity but does not distinguish PPAOS subtypes. ASR transcriptions showed weak agreement with human transcriptions; thus, ASR may be a useful tool for the transcription of speech in PPAOS, but the research questions posed must be carefully considered within the context of its limitations.Supplemental Material S1. Apraxia of Speech Rating Scale by word error rate.Supplemental Material S2. Demographics of participants included in error analysis.Supplemental Material S3. Percentage of words with an error (manual) by word error rate (automatic speech recognition).Tetzloff, K. A., Wiepert, D., Botha, H., Duffy, J. R., Clark, H. M., Whitwell, J. L., Josephs, K. A., & Utianski, R. L. (2024). Automatic speech recognition in primary progressive apraxia of speech. Journal of Speech, Language, and Hearing Research, 67(9), 2964–2976. https://doi.org/10.1044/2024_JSLHR-24-00049
MODALLIK VA UNING MULOQOTDA IFODALANISHI
Creators: name: Muminov, Siddiqjon
name: Sirojidinova, Dilraboxon
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqola tilshunoslikda modallik hodisasiga bag'ishlangan bo'lib, unda turli xil fikrlar uchraydi. Modallik gapni shakllantiruvchi katigoriya yoki gapga xos bo'lgan tarkibiy qism ekanliga haqida qarashlar yoritilgan. Shuningdek o'quvchiga tushunarli bo'lishi uchun misollar asosida izohlab ham o'tilgan. Modallikning tilshunslikdagi o'rni ham uning muloqotdagi ma'noni yoritib berishga qay darajada ahamiyatli ekanligi ham izlanishlar davomida o'rganilgan.
Collaborative Networks in Particle Physics: A Sociological Inquiry into the ATLAS and CMS Collaborations
Creators: name: Raynaud, Dominique
Publisher: name: Социология науки и технологий
Year: 2016
Subjects: ATLAS
CMS
Particle Physics
Scientific collaborative networks

description: The discovery of the Higgs boson is one of the most significant advances of particle physics in recent years. It led to the award of the Nobel Prize in Physics 2013 to Englert and Higgs for the theory explaining the origin of the particle mass. The Nobel Prize cannot conceal the fact that the results about the new particle have been achieved by the experimental physicists of the ATLAS and CMS collaborations, who are among the largest international collaboration of scientists in the world (2898 and 2932 physicists, respectively). This article is dedicated to the study of the organization and operation of the ATLAS and CMS international collaborations. The disparities between countries, structure of collaborative networks, physicists’ cooperative vs. competitive preferences, and emerging properties of research work in large scientific collaborations are reviewed.
Attractive and repulsive fluctuation-induced pressure in peptide films deposited on semiconductor substrates
Creators: name: Klimchitskaya, Galina L.
name: Mostepanenko, Vladimir M.
name: Tsybin, Oleg Yu.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the fluctuation-induced (Casimir) pressure in peptide films deposited on GaAs, Ge, and ZnS substrates which are either in dielectric or metallic state. Calculations of the Casimir pressure are performed in the framework of fundamental Lifshitz theory employing the frequency-dependent dielectric permittivities of all involved materials. The electric conductivity of semiconductor substrates is taken into account within the experimentally and thermodynamically consistent approach. According to our results, the Casimir pressure in peptide films deposited on dielectric-type semiconductor substrates vanishes for some definite film thickness, is repulsive for thinner and attractive for thicker films. The dependence of this effect on the fraction of water in the film and on the static dielectric permittivity of semiconductor substrate is determined. For the metallic-type semiconductor substrates, the Casimir pressure in peptide coatings is shown to be always repulsive. Possible applications of these results to the problem of stability of thin coatings in microdevices are discussed.
description: 14 pages, 5 figures
RePeME: Scientific Papers Database: General Research Strategy
Creators: name: Santos, Margarida Frade
Publisher: name: Zenodo
Year: 2023

description: General research strategy used for the elaboration of a database that compliles scientific papers in the scope of the RePeME project. The PDF file presents the detailed information regarding the databases used, chronological scope, final output and research strategy terms and operators by axis. In the Excel file are presented the articles included, by research axis.
description: Funding: ILIND/F+/EI/03/2022
Metric-Like Formulation Of the Spin-Three Gravity In Three Dimensions
Creators: name: Guo, Zhi-Qiang
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a metric-like formulation of the spin-3 gravity in three dimensions. It is shown that the Chern-Simons formulation of the spin-3 gravity can be reformulated as a Einstein-Cartan-Sciama-Kibble theory coupled with the higher-spin matter fields. A duality-like transformation is also identified from this metric-like formulation.
description: 5 pages, no figures
Graphene nanoelectromechanical resonators for detection of modulated terahertz radiation
Creators: name: Svintsov, D.
name: Leiman, V. G.
name: Ryzhii, V.
name: Otsuji, T.
name: Shur, M. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose and analyze the detector of modulated terahertz (THz) radiation based on the graphene field-effect transistor with mechanically floating gate made of graphene as well. The THz component of incoming radiation induces resonant excitation of plasma oscillations in graphene layers (GLs). The rectified component of the ponderomotive force between GLs invokes resonant mechanical swinging of top GL, resulting in the drain current oscillations. To estimate the device responsivity, we solve the hydrodynamic equations for the electrons and holes in graphene governing the plasma-wave response, and the equation describing the graphene membrane oscillations. The combined plasma-mechanical resonance raises the current amplitude by up to four orders of magnitude. The use of graphene as a material for the elastic gate and conductive channel allows the voltage tuning of both resonant frequencies in a wide range.
description: 13 pages, 5 figures
Approximating Optimal Estimation of Time Offset Synchronization with Temperature Variations
Creators: name: Mongelli, Maurizio
name: Scanzio, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The paper addresses the problem of time offset synchronization in the presence of temperature variations, which lead to a non-Gaussian environment. In this context, regular Kalman filtering reveals to be suboptimal. A functional optimization approach is developed in order to approximate optimal estimation of the clock offset between master and slave. A numerical approximation is provided to this aim, based on regular neural network training. Other heuristics are provided as well, based on spline regression. An extensive performance evaluation highlights the benefits of the proposed techniques, which can be easily generalized to several clock synchronization protocols and operating environments.
description: preprint, 9 pages
Photocycle Dynamics of the Archaerhodopsin 3 Based Fluorescent Voltage Sensor QuasAr1
Creators: name: Penzkofer, Alfons
name: Silapetere, Arita
name: Hegemann, Peter
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: QuasAr1
subject: Archaerhodopsin 3
subject: genetically encoded fluorescent voltage sensor
subject: absorption spectroscopic characterization
subject: fluorescence studies
subject: photocycle dynamics
subject: photoisomerization
subject: deprotonation
subject: reprotonation
subject: 540 Chemie und zugeordnete Wissenschaften
subject: 570 Biologie

description: The retinal photocycle dynamics of the fluorescent voltage sensor QuasAr1 (Archaerhodopsin 3 P60S-T80S-D95H-D106H-F161V mutant from Halorubrum sodomense) in pH 8 Tris buffer was studied. The samples were photoexcited to the first absorption band of the protonated retinal Schiff base (PRSB) Ret_580 (absorption maximum at λmax ≈ 580 nm), and the retinal Schiff base photoisomerization and protonation state changes were followed by absorption spectra recordings during light exposure and after light exposure. Ret_580 turned out to be composed of two protonated retinal Schiff base isomers, namely Ret_580I and Ret_580II. Photoexcitation of Ret_580I resulted in barrier-involved isomerization to Ret_540 (quantum yield ≈ 0.056) and subsequent retinal proton release leading to Ret_410 deprotonated retinal Schiff base (RSB). In the dark, Ret_410 partially recovered to Ret_580I and partially stabilized to irreversible Ret_400 due to apoprotein restructuring (Ret_410 lifetime ≈ 2 h). Photoexcitation of Ret_580II resulted in barrier-involved isomerization to Ret_640 (quantum yield ≈ 0.00135) and subsequent deprotonation to Ret_370 (RSB). In the dark, Ret_370 partially recovered to Ret_580II and partially stabilized to irreversible Ret_350 due to apoprotein restructuring (Ret_370 lifetime ≈ 10 h). Photocycle schemes and reaction coordinate diagrams for Ret_580I and Ret_580II were developed and photocyle parameters were determined.