cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Shoulders and shadows of giants: intra-regional distribution of the digital industry in Germany
Creators: name: Hellwig, Vanessa
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Cancer
subject: Science Policy
subject: Plant Biology
subject: Virology
subject: Computational Biology

description: This paper investigates digital firm birth activity in municipalities in the urban hinterland of core cities in Germany. It conducts panel fixed-effect regressions for monocentric and polycentric urban labour market regions covering the years 1995–2017. The digital industry’s regional distribution is shaped significantly by the closest core cities: municipalities in monocentric urban regions (MURs) profit from urban population growth and universities’ general knowledge. Municipalities in polycentric urban regions (PURs), however, are affected by industry-specific externalities, that is, an above-average growth in the share of firm birth of their closest urban cores. Overall, agglomeration externalities experience spatial decay relative to the core size with all regions benefiting from their own industry-enhancing urbanization externalities as captured by population growth and universities.
A train-the-trainer program for sustainable research data management training
Creators: name: Helbig, Kerstin
name: Cortez, Katrin
Publisher: name: Zenodo
Year: 2019
Subjects: train-the-trainer
research data management
workshop
training
FAIR
open data

description: A large number of researchers need to be trained in FAIR and open research data management at universities in the next years. However, human resources are scarce at infrastructure facilities and knowledge is just being built up for open science and data literacy. To enhance competences in a smooth, sustainable and fast way, Humboldt-Universität zu Berlin and Freie Universität Berlin created a train-the-trainer program for research data management. With funding of the German Federal Ministry of Education and Research, the two universities designed a comprehensive concept that encompasses 22 learning units. The concept and the extensive accompanying training materials were published for re-use and adoption.
description: This work was funded by the German Federal Ministry of Education and Research (FKZ 16FDM010 and 16FDM011) and presented at the Open Science Fair 2019 in Porto, Portugal.
Family-group names of fossil fishes
Creators: name: Laan, Richard Van Der
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy

description: †Nybelineidae Lund 1968 (family)
 †’ Nybelinea ’ [not Nybelinea Whitley 1976: 48; unavailable publication, family-group name not available]
description: Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 58, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/5557557
Effect of Magnetic field on the Pseudogap Phenomena in High-Tc Cuprates
Creators: name: Yanase, Youichi
name: Yamada, Kosaku
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically investigate the effect of magnetic field on the pseudogap phenomena in High-Tc cuprates. The obtained results well explain the experimental results including their doping dependences. In our previous paper (J. Phys. Soc. Jpn. 68 (1999) 2999.), we have shown that the pseudogap phenomena observed in High-Tc cuprates are naturally understood as a precursor of the strong coupling superconductivity. On the other hand, there is an interpretation for the recent high field NMR measurements to be an evidence denying the pairing scenarios for the pseudogap. In this paper, we investigate the magnetic field dependence of NMR $1/T_{1}T$ on the basis of our formalism and show the interpretation to be inappropriate. The results indicate that the value of the characteristic magnetic field $B_{\rm ch}$ is remarkably large in case of the strong coupling superconductivity, especially near the pseudogap onset temperature $T^{*}$. Therefore, the magnetic field dependences can not be observed and $T^{*}$ does not vary when the strong pseudogap anomaly is observed. On the other hand, $B_{\rm ch}$ is small in the comparatively weak coupling case and $T^{*}$ varies when the weak pseudogap phenomena are observed. These results properly explain the high magnetic field NMR experiments continuously from under-doped to over-doped cuprates. Moreover, we discuss the transport phenomena in the pseudogap phase. The behaviors of the in-plane resistivity, the Hall coefficient and the c-axis resistivity in the pseudogap phase are naturally understood by considering the d-wave pseudogap.
Understanding the Diversity of 21 cm Cosmology Analyses
Creators: name: Morales, Miguel F.
name: Beardsley, Adam
name: Pober, Jonathan
name: Barry, Nichole
name: Hazelton, Bryna
name: Jacobs, Daniel
name: Sullivan, Ian
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: 21 cm power spectrum observations have the potential to revolutionize our understanding of the Epoch of Reionization and Dark Energy, but require extraordinarily precise data analysis methods to separate the cosmological signal from the astrophysical and instrumental contaminants. This analysis challenge has led to a diversity of proposed analyses, including delay spectra, imaging power spectra, m-mode analysis, and numerous others. This diversity of approach is a strength, but has also led to confusion within the community about whether insights gleaned by one group are applicable to teams working in different analysis frameworks. In this paper we show that all existing analysis proposals can be classified into two distinct families based on whether they estimate the power spectrum of the measured or reconstructed sky. This subtle difference in the statistical question posed largely determines the susceptibility of the analyses to foreground emission and calibration errors, and ultimately the science different analyses can pursue. In this paper we detail the origin of the two analysis families, categorize the analyses being actively developed, and explore their relative sensitivities to foreground contamination and calibration errors.
description: Accepted for publication in MNRAS
Family-group names of fossil fishes
Creators: name: Laan, Richard Van Der
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy

description: †Tjalvidae Lund 1968 (family)
 †’ Tjalvis ’ [unavailable publication, family-group name not available]
description: Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 58, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/5557557
Quantum non-demolition measurements: Concepts, theory and practice
Creators: name: Unnikrishnan, C. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This is a limited overview of quantum non-demolition (QND) measurements, with brief discussions of illustrative examples meant to clarify the essential features. In a QND measurement, the predictability of a subsequent value of a precisely measured observable is maintained and any random back-action from uncertainty introduced into a noncommuting observable is avoided. The fundamental ideas, relevant theory and the conditions and scope for applicability are discussed with some examples. Precision measurements have indeed gained from developing QND measurements. Some implementations in quantum optics, gravitational wave detectors and spin-magnetometry are discussed.
description: 20 pages (11pt), 6 figures
Metal-Insulator Transition in a Disordered Two-Dimensional Electron Gas in GaAs-AlGaAs at zero Magnetic Field
Creators: name: Ribeiro, E.
name: Jaeggi, R.
name: Heinzel, T.
name: Ensslin, K.
name: Medeiros-Ribeiro, G.
name: Petroff, P. M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A metal-insulator transition in two-dimensional electron gases at B=0 is found in Ga(Al)As heterostructures, where a high density of self-assembled InAs quantum dots is incorporated just 3 nm below the heterointerface. The transition occurs at resistances around h/e^2 and critical carrier densities of 1.2 10^11cm^-2. Effects of electron-electron interactions are expected to be rather weak in our samples, while disorder plays a crucial role.
description: 4 pages, 3 figures, 21 references
The dynamics of trade firms during the COVID-19 pandemic: the case of Via Padova, Milan
Creators: name: Cattivelli, Valentina
name: Ferilli, Guido
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: This paper investigates trade firms’ dynamics in the Via Padova neighbourhood at the end of 2020. The COVID-19 pandemic has stressed local economies and it has resulted in economic downturns, income inequalities and increased unemployment. While the current literature analyses widely its impacts on international trade, little attention has been given to the resilience of trade firms at the urban level. The containment measures to limit the pandemic have caused temporary closings of non-essential goods firms, while forcing other firms offering essential goods to stay open, albeit the many difficulties encountered. Since the Via Padova neighbourhood has one of the highest densities of trade firms in Milan, this makes it an interesting study area to test the effects associated with the containment measures. Exploring the data about trade firms’ survival rates related to the period 2019–20 demonstrates a certain resilience of local firms. The number of firms closing down decreases in 2020, while the variation in the active ones tends to become insignificant compared with the previous year. The negative effects on non-essential goods firms persist during the first wave of the pandemic, whereas during the second wave essential goods firms are especially affected. These dynamics of resilience towards hostile economic and social conditions caused by the pandemic are a useful clue for reconsidering and developing new recovery policies.
Micromechanical approach for the analysis of wave propagation in particulate composites
Creators: name: Rojas-Cristancho, Cristhian Fernando
name: Dinzart, Florence
name: Estrada, Octavio Andrés González
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Laser ultrasonic non-destructive testing is widely used for the inspection of mechanical structures. This method uses the propagation of ultrasonic guided waves (UGW) in the media. For this purpose, it has been demonstrated that the addition of a thin composite layer between the laser source and the structure for inspection is necessary. Consequently, this composite is an optoacoustic transducer composed of an absorption material such as carbon for inclusions and an expanding material such as an elastomer for the matrix. Thus, optimal fabrication of this composite should enable the amplification of the signal for inspection. Indeed, experimental research has demonstrated that variation in the volume fraction of carbon inclusions, their shape, and the nature of the matrix, affect the amplification of the signal directly. The aim of this study is to analyse the wave propagation in particulate viscoelastic composites by a dynamic self-consistent approach.
Cosmology of Supersymmetric Models with Low-energy Gauge Mediation
Creators: name: de Gouvea, Andre
name: Moroi, Takeo
name: Murayama, Hitoshi
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the cosmology of supersymmetric models in which the supersymmetry breaking effects are mediated by gauge interactions at about the 10^5 GeV scale. We first point out that the gravitino is likely to overclose the Universe in this class of models. This requires an entropy production, which prefers a baryogenesis mechanism at a relatively low temperature. The Affleck-Dine mechanism for baryogenesis is one of the possibilities to generate enough baryon asymmetry, but the analysis is non-trivial since the shape of the potential for the flat direction differs substantially from the conventional hidden sector case. To see this, we first perform a 2-loop calculation to determine the shape of the potential. By combining the potential with the supergravity contribution, we then find that the Affleck-Dine baryogenesis works efficiently to generate sufficient baryon asymmetry. On the other hand, we also point out that string moduli fields, if present, are stable and their coherent oscillations overclose the Universe by more than 15 orders of magnitude. One needs a very late inflationary period with an e-folding of N \gtrsim 5 and an energy density of \lesssim (10^7 GeV)^4. A thermal inflation is enough for this purpose. Fortunately, the Affleck-Dine baryogenesis is so efficient that enough baryon asymmetry can survive the late inflation.
description: 40 pages, LaTeX, epsf.sty
Additional file 13: of Transcriptomic profiling reveals MEP pathway contributing to ginsenoside biosynthesis in Panax ginseng
Creators: name: Xue, Le
name: He, Zilong
name: Bi, Xiaochun
name: Xu, Wei
name: Wei, Ting
name: Wu, Shuangxiu
name: Hu, Songnian
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Plant Biology
subject: Cardiology

description: Figure S8. The alignment among IspD isoforms obtained from the IPGA dataset (isoform No. 1), the Renamed dataset (isoform No. 2) and our de novo TRINITY assembly dataset (isoform No. 10–17), based on the Illumina HiSeq platforms, as well as from the Iso-seq dataset (isoform No. 3–9) based on the PacBio sequencing platform. The result showed that two isoforms of our de novo TRINITY assembly (isoform No. 10–11) had high identity with that of IPGA (isoform No. 1). But other isoforms of our de novo TRINITY assembly had little similarity with that of the Renamed dataset and Iso-seq dataset. (PDF 597 kb)
Poisson equation and self-consistent periodical Anderson model
Creators: name: Lundin, U.
name: Sandalov, I.
name: Eriksson, O.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that the formally exact expression for the free energy (with a non-relativistic Hamiltonian) for the correlated metal generates the Poisson equation within the saddle-point approximation for the electric potential, where the charge density automatically includes correlations. In this approximation the problem is reduced to the self-consistent periodical Anderson model (SCPAM). The parameter of the mixing interaction in this formulation have to be found self-consistently together with the correlated charge density. The factors, calculated by Irkhin, for the mixing interaction, which reflect the structure of the many-electron states of the \f-ion involved, arise automatically in this formulation and are quite sensitive to the specific element we are interested in. We also discuss the definitions of the mixing interaction for the mapping from ab initio to model calculations.
description: 25 pages, no figures
Collective excitations of a periodic Bose condensate in the Wannier representation
Creators: name: Chiofalo, M. L.
name: Polini, M.
name: Tosi, M. P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the dispersion relation of the excitations of a dilute Bose-Einstein condensate confined in a periodic optical potential and its Bloch oscillations in an accelerated frame. The problem is reduced to one-dimensionality through a renormalization of the s-wave scattering length and the solution of the Bogolubov - de Gennes equations is formulated in terms of the appropriate Wannier functions. Some exact properties of a periodic one-dimensional condensate are easily demonstrated: (i) the lowest band at positive energy refers to phase modulations of the condensate and has a linear dispersion relation near the Brillouin zone centre; (ii) the higher bands arise from the superposition of localized excitations with definite phase relationships; and (iii) the wavenumber-dependent current under a constant force in the semiclassical transport regime vanishes at the zone boundaries. Early results by J. C. Slater [Phys. Rev. 87, 807 (1952)] on a soluble problem in electron energy bands are used to specify the conditions under which the Wannier functions may be approximated by on-site tight-binding orbitals of harmonic- oscillator form. In this approximation the connections between the low-lying excitations in a lattice and those in a harmonic well are easily visualized. Analytic results are obtained in the tight-binding scheme and are illustrated with simple numerical calculations for the dispersion relation and semiclassical transport in the lowest energy band, at values of the system parameters which are relevant to experiment.
description: 20 pages, 2 figures, 22 references
Optical studies of gap, hopping energies and the Anderson-Hubbard parameter in the zigzag-chain compound SrCuO2
Creators: name: Popovic, Z. V.
name: Ivanov, V. A.
name: Konstantinovic, M. J.
name: Cantarero, A.
name: Martinez-Pastor, J.
name: Olguin, D.
name: Alonso, M. I.
name: Garriga, M.
name: Khuong, O. P.
name: Vietkin, A.
name: Moshchalkov, V. V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have investigated the electronic structure of the zigzag ladder (chain) compound SrCuO2 combining polarized optical absorption, reflection, photoreflectance and pseudo-dielectric function measurements with the model calculations. These measurements yield an energy gap of 1.42 eV (1.77 eV) at 300 K along (perpendicular) to the Cu-O chains. We have found that the lowest energy gap, the correlation gap, is temperature independent. The electronic structure of this oxide is calculated using both the local-spin-density-approximation with gradient correction method, and the tight-binding theory for the correlated electrons. The calculated density of electronic states for non-correlated and correlated electrons shows quasi-one-dimensional character. The correlation gap values of 1.42 eV (indirect transition) and 1.88 eV (direct transition) have been calculated with the electron hopping parameters t = 0.30 eV (along a chain), t_yz = 0.12 eV (between chains) and the Anderson-Hubbard repulsion on copper sites U= 2.0 eV. We concluded that SrCuO_2 belongs to the correlated-gap insulators.
description: 24 pages, 8 figures, to be published in Phys.Rev.B
Additional file 1: of The relationship between the mtDNA copy number in insulin-dependent tissues and markers of endothelial dysfunction and inflammation in obese patients
Creators: name: Litvinova, Larisa
name: Zatolokin, Pavel
name: Vulf, Maria
name: Mazunin, Ilia
name: Skuratovskaia, Daria
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Table S3. Correlation interrelations of the studied metabolites. (DOCX 100 kb)
Family-group names of fossil fishes
Creators: name: Laan, Richard Van Der
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy

description: Family †Ligulellidae Saint-Seine 1955
 †Ligulellidae Saint-Seine 1955: 103 (family) † Ligulella Saint-Seine 1955
description: Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 58, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/5557557
Additional file 12: of Transcriptomic profiling reveals MEP pathway contributing to ginsenoside biosynthesis in Panax ginseng
Creators: name: Xue, Le
name: He, Zilong
name: Bi, Xiaochun
name: Xu, Wei
name: Wei, Ting
name: Wu, Shuangxiu
name: Hu, Songnian
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Plant Biology
subject: Computational Biology

description: Figure S7. Spearman correlation analysis on our assembled datasets and three published datasets, the IPGA, the Renamed and the Iso-seq, based on all the transcribed genes. (p value <=0.05) (PDF 37 kb)
Multiplicity of Galactic Cepheids from long-baseline interferometry. IV. New detected companions from MIRC and PIONIER observations
Creators: name: Gallenne, A.
name: Kervella, P.
name: Borgniet, S.
name: Mérand, A.
name: Pietrzyński, G.
name: Gieren, W.
name: Monnier, J. D.
name: Schaefer, G. H.
name: Evans, N. R.
name: Anderson, R. I.
name: Baron, F.
name: Roettenbacher, R. M.
name: Karczmarek, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim at detecting and characterizing the main-sequence companions of a sample of known and suspected Galactic binary Cepheids. We used the multi-telescope interferometric combiners MIRC and PIONIER to detect and measure the astrometric positions of the high-contrast companions orbiting 16 bright Galactic Cepheids. We made use of the CANDID algorithm to search for the companions and set detection limits. We also present new high-precision RVs which were used to fit radial pulsation and orbital velocities. We report the detection of the companions orbiting the Cepheids U Aql, BP Cir, and S Mus, possible detections for FF Aql, Y Car, BG Cru, X Sgr, V350 Sgr, and V636 Sco, while no component is detected around U Car, YZ Car, T Mon, R Mus, S Nor, W Sgr and AH Vel. For U Aql and S Mus, we performed a preliminary orbital fit combining astrometry with new high-precision RVs, providing the full set of orbital and pulsation parameters. Assuming the distance, we estimated preliminary masses of M(U Aql) = 4.97+/-0.62Msun and M(S Mus) = 4.63+/-0.99Msun. For YZ Car, W Sgr, V350 Sgr, and V636 Sco, we revised the spectroscopic orbits using new high-precision RVs, while we updated the pulsation parameters for BP Cir, BG Cru, S Nor and AH Vel. Our interferometric observations also provide measurements of the angular diameters, that can be used in a Baade-Wesselink type analysis. We have now several astrometric detections of Cepheid companions. When RVs of the companions will be available, such systems will provide accurate and independent masses and distances. Orbital parallaxes with an accuracy <5% will be particularly useful for a better calibration of the P-L relation. The final Gaia parallaxes will be also particularly helpful for single-line spectroscopic systems, where mass and distance are degenerate. Mass measurements are necessary for a better understanding of the age and evolution of Cepheids
description: 29 pages, 11 figures, 23 tables. Accepted for publication in A&A
Siyuichthyidae Su 1980
Creators: name: Laan, Richard Van Der
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Pholidophoriformes
Siyuichthyidae

description: Family † Siyuichthyidae Su 1980
 † Siyuichthyidae Su 1980: 77 (family) † Siyuichthys Su 1980 [also Su 1985: 73, 130]
description: Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 58, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/5557557
Firm relocations, commuting and relationship stability
Creators: name: Hrehová, Kristína
name: Sandow, Erika
name: Lindgren, Urban
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: In this paper we study the impact of firm relocations on commuting distance and the probability of married couples and cohabiting couples with children separating. We use Swedish register data for the period 2010–16 and select employees of relocating firms with one workplace and more than 10 employees. Focusing on this sample allows us to use plausibly exogenous variation in the commuting distance arising from the relocation. We extend the literature on the effect of commuting on relationship stability by reducing the possibility for unobserved time-variant factors to bias our estimates. While previous literature has focused on the difference between short- and long-distance commuting, we focus on changes in the commuting distance that are externally induced by firm management. We find a small but statistically significant negative effect of increased firm relocation distance on family stability. A 10 km change in commuting distance leads to a 0.09 percentage point higher probability of separation if the commuter remains with the firm for the next five years.
Additional file 3: of Circular RNA ACVR2A suppresses bladder cancer cells proliferation and metastasis through miR-626/EYA4 axis
Creators: name: Dong, Wei
name: Bi, Junming
name: Liu, Hongwei
name: Yan, Dong
name: He, Qingqing
name: Zhou, Qianghua
name: Wang, Qiong
name: Xie, Ruihui
name: Su, Yinjie
name: Yang, Meihua
name: Lin, Tianxin
name: Huang, Jian
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Table S3. The probes used in this study. (DOCX 13 kb)
Security Services Using Blockchains: A State of the Art Survey
Creators: name: Salman, Tara
name: Zolanvari, Maede
name: Erbad, Aiman
name: Jain, Raj
name: Samaka, Mohammed
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This article surveys blockchain-based approaches for several security services. These services include authentication, confidentiality, privacy, and access control list (ACL), data and resource provenance, and integrity assurance. All these services are critical for the current distributed applications, especially due to the large amount of data being processed over the networks and the use of cloud computing. Authentication ensures that the user is who he/she claims to be. Confidentiality guarantees that data cannot be read by unauthorized users. Privacy provides the users the ability to control who can access their data. Provenance allows an efficient tracking of the data and resources along with their ownership and utilization over the network. Integrity helps in verifying that the data has not been modified or altered. These services are currently managed by centralized controllers, for example, a certificate authority. Therefore, the services are prone to attacks on the centralized controller. On the other hand, blockchain is a secured and distributed ledger that can help resolve many of the problems with centralization. The objectives of this paper are to give insights on the use of security services for current applications, to highlight the state of the art techniques that are currently used to provide these services, to describe their challenges, and to discuss how the blockchain technology can resolve these challenges. Further, several blockchain-based approaches providing such security services are compared thoroughly. Challenges associated with using blockchain-based security services are also discussed to spur further research in this area.
description: COMST 2018 accepted paper
Additional file 1: of Characteristics and determinants of community physiotherapy utilization and supply
Creators: name: Chidozie Mbada
name: Olawuyi, Abraham
name: Olufemi Oyewole
name: Adesola Odole
name: Abiola Ogundele
name: Fatoye, Francis
Publisher: name: figshare
Year: 2019
Subjects: subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy

description: Title of data: Survey questionnaire. The tool used to assess the supply and utilization of physiotherapy services. (DOCX 87 kb)
On the multi-symplectic structure of Boussinesq-type systems. I: Derivation and mathematical properties
Creators: name: Durán, Angel
name: Dutykh, Denys
name: Mitsotakis, Dimitrios
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The Boussinesq equations are known since the end of the XIXst century. However, the proliferation of various \textsc{Boussinesq}-type systems started only in the second half of the XXst century. Today they come under various flavours depending on the goals of the modeller. At the beginning of the XXIst century an effort to classify such systems, at least for even bottoms, was undertaken and developed according to both different physical regimes and mathematical properties, with special emphasis, in this last sense, on the existence of symmetry groups and their connection to conserved quantities. Of particular interest are those systems admitting a symplectic structure, with the subsequent preservation of the total energy represented by the Hamiltonian. In the present paper a family of Boussinesq-type systems with multi-symplectic structure is introduced. Some properties of the new systems are analyzed: their relation with already known Boussinesq models, the identification of those systems with additional Hamiltonian structure as well as other mathematical features like well-posedness and existence of different types of solitary-wave solutions. The consistency of multi-symplectic systems with the full Euler equations is also discussed.
description: 32 pages, 5 figures, 1 table, 67 references. Other author's papers can be downloaded at http://www.denys-dutykh.com/
Kinetics of ballistic annihilation and branching
Creators: name: Rey, Pierre-Antoine
name: Droz, Michel
name: Piasecki, Jaroslaw
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a one-dimensional model consisting of an assembly of two-velocity particles moving freely between collisions. When two particles meet, they instantaneously annihilate each other and disappear from the system. Moreover each moving particle can spontaneously generate an offspring having the same velocity as its mother with probability 1-q. This model is solved analytically in mean-field approximation and studied by numerical simulations. It is found that for q=1/2 the system exhibits a dynamical phase transition. For q<1/2, the slow dynamics of the system is governed by the coarsening of clusters of particles having the same velocities, while for q>1/2 the system relaxes rapidly towards its stationary state characterized by a distribution of small cluster sizes.
description: 10 pages, 11 figures, uses multicol, epic, eepic and eepicemu. Also avaiable at http://mykonos.unige.ch/~rey/pubt.html
The legacy of socialist central planning policy for the long-term development of cities: insights from case studies in East Germany
Creators: name: Rosenfeld, Martin
name: Heider, Bastian
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: This paper analyses different categories of legacy from socialist central planning policies (SCPP) for urban development. How have city-specific measures by SCPP affected local economic systems, and have there been long-term consequences for cities even after their return to a market economy? Drawing from case studies of four East German cities, we identify several types of socialist policy measures that determine the local economic performance up to now. The impact of some measures was primarily displayed via ‘soft’ factors such as local image and identity and the attitudes of residents, local decision-makers.
Eurycormidae Arratia 2017
Creators: name: Laan, Richard Van Der
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Pholidophoriformes
Eurycormidae

description: Family † Eurycormidae Arratia 2017
 † Eurycormidae Arratia 2017: 23 (family) † Eurycormus Wagner 1863
description: Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 58, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/5557557
Pholidophoridae Wagner 1860
Creators: name: Laan, Richard Van Der
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Pholidophoriformes
Pholidophoridae

description: Family † Pholidophoridae Wagner 1860
 †Monostichii Giebel 1847: 203 (family) † Pholidophorus Agassiz 1832 [no stem of the type genus, not available, Art. 11.7.1.1]
 †Pholidophori Wagner 1860b: 402 (Gruppe) † Pholidophorus Agassiz 1832
description: Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 58, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/5557557
Can high energy cosmic rays be vortons ?
Creators: name: Bonazzola, Silvano
name: Peter, Patrick
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A simple model is exhibited in which the remnant density of charged vortons is used to provide candidates for explaining the observed ultra high energy cosmic rays (above $10^{20}$ eV). These vortons would be accelerated in active galaxies and propagated through intergalactic medium with negligible losses of energy. The expected number density of observable events is shown to be consistent with extrapolation of the observations. The spectrum is predicted to be spatially isotropic while its shape is that of an atomic excitation-ionisation, i.e. with a few peaks followed by a continuum; there is also an energy threshold below which no vorton is visible.
description: ReVTeX, 10 pages including 2 eps figures
Los Angeles Wholesale Food Distribution Facilities
Creators: name: Taylor, Earl G.
name: Lederer, Bruce E.
name: Goble, Jesse W.
name: Volz, Martin D.
name: Karitas, James J.
name: Morris, James N.
name: Stewart, Charles F.
name: Bouma, John C.
name: Taylor, Earl G.
name: Lederer, Bruce E.
name: Goble, Jesse W.
name: Volz, Martin D.
name: Karitas, James J.
name: Morris, James N.
name: Stewart, Charles F.
name: Bouma, John C.
Publisher: name: Unknown
Year: 1972
Subjects: subject: Crop Production/Industries
subject: Financial Economics
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report: This study was conducted to analyze the present wholesale food marketing system in the Los Angeles area and to determine if improvements in the system are possible. To achieve this objective, data were gathered relating to the costs and operating methods of present facilities. In the beginning, the present marketing system was analyzed. Then, the cost of developing a new food distribution center was estimated. Thus, the amount of land, types of facilities, costs of construction, and probable operating expenses were determined. The data relating to the amount of each commodity received by the wholesalers and the costs of handling the products from point of initial receipt through the various wholesale channels were obtained by personal interviews and selected time studies. This study was concerned with 538 selected corporate chainstores and affiliated wholesalers and independent wholesalers of fresh fruits and vegetables, meat and meat products, poultry and eggs, frozen foods, manufactured dairy products, groceries, and fish and shellfish. The total tonnage of hard cheese, butter, and other manufactured products handled by fluid milk processing plants was included. The tonnage of fluid milk products, cottage cheese, ice cream, and related products was excluded. Slaughtering plants, brokerage firms, and firms that retailed more than 50 percent of their volume were not included in this study.
Spin - glass transition in Kondo lattice with quenched disorder
Creators: name: Kiselev, M. N.
name: Oppermann, R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We use the Popov-Fedotov representation of spin operators to construct an effective action for a Kondo lattice model with quenched disorder at finite temperatures. We study the competition between the Kondo effect and frozen spin order in Ising-like spin glass. We present the derivation of new mean-field equations for the spin-glass order parameter and analyze the effects of screening of localized spins by conduction electrons on the spin-glass phase transition.
description: 6 pages, jetpl style included, to appear in JETP Letters
Vortex Channeling and the V-I Characteristic of YBa2Cu3O7 Low Angle Grain Boundaries
Creators: name: Hogg, M. J.
name: Kahlmann, F.
name: Tarte, E. J.
name: Barber, Z. H.
name: Evetts, J. E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have performed V-I measurements on a thin film YBa2Cu3O7 4^o [001] tilt low angle grain boundary over an extensive range of temperature and field, verifying the presence of a linear characteristic. We report on the occurrence of the linear characteristic in its basic form and on the observation of V-I kinking into several, and in some cases numerous, linear segments. We interpret these findings in terms of a variation in the dissipative width at the grain boundary. Kinking from one linear V-I section to another of different gradient is described in terms of a change in the number of vortex rows being viscously channeled along the boundary.
description: 14 pages including 4 figures. To be published in Applied Physics Letters
Superconductivity in the Extended Hubbard Model with More Than Nearest-Neighbour Contributions
Creators: name: Szabo, Zs.
name: Gulacsi, Zs.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Superconducting phase diagram of the extended Hubbard model supplemented with interaction and hopping terms exceeding nearest neighbour distance in range is analysed systematically at different band-filling and temperature values in a mean-field approximation. The obtained results clearly underline the importance of next-nearest neighbour terms in developing the main superconducting properties of the model system. In particular, the emergence of superconducting phases of different symmetry at a given point of the phase diagram, critical temperatures $T_c$, zero temperature gap amplitude values $Δ_{0}$, $Δ_{0}/T_{c}$ ratios, doping and temperature dependences are all strongly influenced by next-nearest neighbour contributions.
description: 15 pages, 8 embedded ps figures, revtex, final version has been published in Phil. Mag. B
The geographical dimension of income inequality in Greece: evolution and the ‘turning point’ after the economic crisis
Creators: name: Psycharis, Yannis
name: Tselios, Vassilis
name: Pantazis, Panagiotis
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: This paper analyses the geographical variations in income level and income inequality in Greece over a long time period allowing comparisons between pre- and during the economic and fiscal crisis periods. The analysis is based on a novel database that includes individual micro-data of declared and taxable income aggregated at municipal level over the period 2002–14. Results indicate that economic crisis and fiscal reforms changed substantially both inter- and intra-municipal/interpersonal income inequalities. The geographies of income inequality are subject to the period of analysis, type of municipality and level of income. The geographies of inequality question the fairness and inclusiveness of the implemented reforms during the recession.
Additional file 11: of Transcriptomic profiling reveals MEP pathway contributing to ginsenoside biosynthesis in Panax ginseng
Creators: name: Xue, Le
name: He, Zilong
name: Bi, Xiaochun
name: Xu, Wei
name: Wei, Ting
name: Wu, Shuangxiu
name: Hu, Songnian
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Figure S6. The transcript abundances of each geneâ s isoforms were variant and changed in different tissues (A) and in 1â 5â years old roots (B) during ginseng growing up. (PDF 245 kb)
Comparison of two methods for calculating nucleation rates
Creators: name: Munster, G.
name: Strumia, A.
name: Tetradis, N.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: First-order phase transitions that proceed via nucleation of bubbles are described by the homogeneous nucleation theory of Langer. The nucleation rate is one of the most interesting parameters of these transitions. In previous works we have computed nucleation rates with two different methods: (A) employing coarse-grained potentials; (B) by means of a saddle-point approximation, using dimensionally regularized field theory. In this article we compare the results of the two approaches in order to test their reliability and to determine the regions of applicability. We find a very good agreement.
description: 6 pages, 2 figures
Effective temperatures in an exactly solvable model for a fragile glass
Creators: name: Leuzzi, Luca
name: Nieuwenhuizen, Theo M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A model glass is considered with one type of fast ($β$-type) of processes, and one type of slow processes ($α$-type). On time-scales where the fast ones are in equilibrium, the slow ones have a dynamics that resembles the one of facilitated spin models. The main features are the occurrence of a Kauzmann transition, a Vogel-Fulcher-Tammann-Hesse behaviour for the relaxation time, an Adam-Gibbs relation between relaxation time and configurational entropy, and an aging regime. The model is such that its statics is simple and its (Monte-Carlo-type) dynamics is exactly solvable. The dynamics has been studied both on the approach to the Kauzmann transition and below it. In certain parameter regimes it is so slow that it sets out a quasi-equilibrium at a time dependent effective temperature. Correlation and Response functions are also computed, as well as the out of equilibrium Fluctuation-Dissipation Relation, showing the uniqueness of the effective temperature, thus giving support to the rephrasing of the problem within the framework of out of equilibrium thermodynamics.
description: 28 pages, 3 figures
Jet Shapes in $ep$ and $p\overline{p}$ Collisions in NLO QCD
Creators: name: Klasen, M.
name: Kramer, G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have calculated jet shapes in low $Q^2$ $ep$ and $p\overline{p}$ collisions in perturbation theory at order $α_s^3$ for the hard parton-parton processes. For the $γp$ process resolved and direct contributions are superimposed. The dependence of the jet shapes on transverse energy, rapidity, and inner cone extension is studied. The numerical results of the calculation are compared with recent data from ZEUS at HERA and from CDF and D0 at the TEVATRON. Good agreement is achieved if the problem of merging overlapping jets is taken into account by varying the parameter $R_{sep}$ as a function of transverse energy and rapidity.
description: LaTeX, 18 pages, 12 figures, uses epsfig.sty
HST FUV spectroscopy of the short orbital period recurrent nova CI Aql: Implications for white dwarf mass evolution
Creators: name: Sion, Edward M.
name: Wilson, R. E.
name: Godon, Patrick
name: Starrfield, Sumner
name: Williams, Robert E.
name: Darnley, Matt J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: An HST COS Far UV spectrum (1170 A to 1800 A) was obtained for the short orbital period recurrent novae (T Pyxidis subclass), CI Aquilae. CI Aql is the only classical CV known to have two eclipses of sensible depth per orbit cycle and also have pre- and post-outburst light curves that are steady enough to allow estimates of mass and orbital period changes. Our FUV spectral analysis with model accretion disks and NLTE high gravity photospheres, together with the Gaia parallax, reveal CI Aql's FUV light is dominated by an optically thick accretion disk with an accretion rate of the order of $4\times 10^{-8}$ $M_{\odot}/yr$. Its database of light curves, radial velocity curves, and eclipse timings is among the best for any CV. Its orbit period ($P$), $dP/dt$, and reference time are re-derived via simultaneous analysis of the three data types, giving a dimensionless post-outburst $dP/dt$ of $-2.49\pm 0.95\times 10^{-10}$. Lack of information on loss of orbital to rotational angular momentum leads to some uncertainty in the translation of $dP/dt$ to white dwarf mass change rate, $dM_1/dt$, but within the modest range of $+4.8\times 10^{-8}$ to $+7.8\times 10^{-8}$ $M_{\odot} /yr$. The estimated white dwarf mass change through outburst for CI Aql, based on simple differencing of its pre- and post outburst orbit period, is unchanged from the previously published $+5.3 \times 10^{-6} M_{\odot}$. At the WD's estimated mass increase rate, it will terminate as a Type Ia supernova within 10 million years.
description: ApJ, in press