cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Plasmonic Dirac Cone in Twisted Bilayer Graphene
Creators: name: Brey, Luis
name: Stauber, T.
name: Slipchenko, T.
name: Martín-Moreno, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We discuss plasmons of biased twisted bilayer graphene when the Fermi level lies inside the gap. The collective excitations are a network of chiral edge plasmons (CEP) entirely composed of excitations in the topological electronic edge states (EES) that appear at the AB-BA interfaces. The CEP form an hexagonal network with an unique energy scale $ε_p=\frac{e^2}{ε_0εt_0}$ with $t_0$ the moiré lattice constant and $ε$ the dielectric constant. From the dielectric matrix we obtain the plasmon spectra that has two main characteristics: (i) a diverging density of states at zero energy, and (ii) the presence of a plasmonic Dirac cone at $\hbarω\simε_p/2$ with sound velocity $v_D=0.0075c$, which is formed by zigzag and armchair current oscillations. A network model reveals that the antisymmetry of the plasmon bands implies that CEP scatter at the hexagon vertices maximally in the deflected chiral outgoing directions, with a current ratio of 4/9 into each of the deflected directions and 1/9 into the forward one. We show that scanning near-field microscopy should be able to observe the predicted plasmonic Dirac cone and its broken symmetry phases.
Loughborough Municipal Borough: an economic and industrial survey of Loughborough Municipal Borough and its setting in the North Midland region
Creators: name: H.R. Perrins
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 149999 Economics not elsewhere classified
subject: FOS: Economics and business

description: Loughborough Municipal Borough: an economic and industrial survey of Loughborough Municipal Borough and its setting in the North Midland region
D-branes in Toroidal Orbifolds and Mirror Symmetry
Creators: name: Dell'Aquila, Eleonora
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study D-branes extended in T^2/Z_4 using the mirror description as a tensor product of minimal models. We describe branes in the mirror both as boundary states in minimal models and as matrix factorizations in the corresponding Landau-Ginzburg model. We isolate a minimal set of branes and give a geometric interpretation of these as D1-branes constrained to the orbifold fixed points. This picture is supported both by spacetime arguments and by the explicit construction of the boundary states, adapting the known results for rational boundary states in the minimal models. Similar techniques apply to a larger class of toroidal orbifolds.
description: 30 pages, 2 figures
Bericht über ein neuentdecktes syrisches Dokument aus Dunhuang/China
Creators: name: Qing, Duan
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 85 (2001): Oriens christianus, Band 85
Universal description of potential energy surface of interlayer interaction in two-dimensional materials by first spatial Fourier harmonics
Creators: name: Lebedev, Alexander V.
name: Lebedeva, Irina V.
name: Popov, Andrey M.
name: Knizhnik, Andrey A.
name: Poklonski, Nikolai A.
name: Vyrko, Sergey A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a hypothesis that the potential energy surface (PES) of interlayer interaction in diverse 2D materials can be universally described by the first spatial Fourier harmonics. This statement (checked previously for the interactions between graphene and hexagonal boron nitride layers in different combinations) is verified in the present paper for the case of hydrofluorinated graphene (HFG) bilayer with hydrogen bonding between fluorine and hydrogen at the interlayer interface. The PES for HFG bilayer is obtained through density functional theory calculations with van der Waals corrections. An analytical expression based on the first Fourier harmonics describing the PES which corresponds to the symmetry of HFG layers is derived. It is found that the calculated PES can be described by the first Fourier harmonics with the accuracy of 3\% relative to the PES corrugation. The shear mode frequency, shear modulus and barrier for relative rotation of the layers to incommensurate states of HFG bilayer are estimated. Additionally it is shown that HFG bilayer is stable relative to the formation of HF molecules as a result of chemical reactions between the layers.
description: 12 pages, 3 figures
Time delay of photoionization by Endohedrals
Creators: name: Amusia, M. Ya.
name: Chernysheva, L. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: In this Letter, we investigate the time delay of photoelectrons by fullerenes shell in endohedrals. We present general formulas in the frame of the random phase approximation with exchange (RPAE) applied to endohedrals A@CN that consist of an atom A located inside of a fullerenes shell constructed of N carbon atoms C. We calculate the time delay of electrons that leave the inner atom A in course of A@CN photoionization. Our aim is to clarify the role that is played by CN shell. As concrete examples of A we have considered Ne, Fr, Kr and Xe, and as fullerene we consider C60. The presence of the C60 shell manifests itself in powerful oscillations of the time delay of an electron that is ionized from a given subshell nl by a photon with energy. Calculations are performed for outer, subvalent and d-subshells.
description: 9 pages, 4 figures
La "Chronique d'Arbèles"
Creators: name: Jullien, Christelle
name: Jullien, Florence
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 85 (2001): Oriens christianus, Band 85
Toda lattice, cohomology of compact Lie groups and finite Chevalley groups
Creators: name: Casian, Luis
name: Kodama, Yuji
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37J35, 37K20, 37K60

description: In this paper, we describe a connection that exists among (a) the number of singular points along the trajectory of Toda flow, (b) the cohomology of a compact subgroup $K$, and (c) the number of points of a Chevalley group $K({\mathbb F}_q)$ related to $K$ over a finite field ${\mathbb F}_q$. The Toda lattice is defined for a real split semisimple Lie algebra $\mathfrak g$, and $K$ is a maximal compact Lie subgroup of $G$ associated to $\mathfrak g$. Relations are also obtained between the singularities of the Toda flow and the integral cohomology of the real flag manifold $G/B$ with $B$ the Borel subgroup of $G$ (here we have $G/B=K/T$ with a finite group $T$). We also compute the maximal number of singularities of the Toda flow for any real split semisimple algebra, and find that this number gives the multiplicity of the singularity at the intersection of the varieties defined by the zero set of Schur polynomials.
description: 28 pages, 5 figures
Horizontal Branch Stars: The Interplay between Observations and Theory, and Insights into the Formation of the Galaxy
Creators: name: Catelan, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review HB stars in a broad astrophysical context, including both variable and non-variable stars. A reassessment of the Oosterhoff dichotomy is presented, which provides unprecedented detail regarding its origin and systematics. We show that the Oosterhoff dichotomy and the distribution of globular clusters (GCs) in the HB morphology-metallicity plane both exclude, with high statistical significance, the possibility that the Galactic halo may have formed from the accretion of dwarf galaxies resembling present-day Milky Way satellites such as Fornax, Sagittarius, and the LMC. A rediscussion of the second-parameter problem is presented. A technique is proposed to estimate the HB types of extragalactic GCs on the basis of integrated far-UV photometry. The relationship between the absolute V magnitude of the HB at the RR Lyrae level and metallicity, as obtained on the basis of trigonometric parallax measurements for the star RR Lyrae, is also revisited, giving a distance modulus to the LMC of (m-M)_0 = 18.44+/-0.11. RR Lyrae period change rates are studied. Finally, the conductive opacities used in evolutionary calculations of low-mass stars are investigated. [ABRIDGED]
description: 56 pages, 22 figures. Invited review, to appear in Astrophysics and Space Science
DevOps in an ISO 13485 Regulated Environment: A Multivocal Literature Review
Creators: name: Lie, Martin Forsberg
name: Sánchez-Gordón, Mary
name: Colomo-Palacios, Ricardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Background: Medical device development projects must follow proper directives and regulations to be able to market and sell the end-product in their respective territories. The regulations describe requirements that seem to be opposite to efficient software development and short time-to-market. As agile approaches, like DevOps, are becoming more and more popular in software industry, a discrepancy between these modern methods and traditional regulated development has been reported. Although examples of successful adoption in this context exist, the research is sparse. Aims: The objective of this study is twofold: to review the current state of DevOps adoption in regulated medical device environment; and to propose a checklist based on that review for introducing DevOps in that context. Method: A multivocal literature review is performed and evidence is synthesized from sources published between 2015 to March of 2020 to capture the opinions of experts and community in this field. Results: Our findings reveal that adoption of DevOps in a regulated medical device environment such as ISO 13485 has its challenges, but potential benefits may outweigh those in areas such as regulatory, compliance, security, organizational and technical. Conclusion: DevOps for regulated medical device environments is a highly appealing approach as compared to traditional methods and could be particularly suited for regulated medical development. However, an organization must properly anchor a transition to DevOps in top-level management and be supportive in the initial phase utilizing professional coaching and space for iterative learning; as such an initiative is a complex organizational and technical task.
description: ACM / IEEE International Symposium on Empirical Software Engineering and Measurement (ESEM '20), October 8--9, 2020, Bari, Italy
Why firms participate in environmental voluntary initiatives : case studies in Japan and Canada
Creators: name: Takahashi, Takuya
Publisher: name: University of British Columbia
Year: 2009

description: Voluntary initiatives such as eco-certification and challenge programs are new policy tools that attempt to ameliorate environmental and sustainable development problems by relying on firms' voluntary efforts. While more traditional policy tools such as command-and-control regulations and market-based instruments have attracted the attention of social scientists, voluntary initiatives have received much less attention from researchers and still require further empirical investigation and theoretical grounding. As a first step to understanding voluntary initiatives, this dissertation empirically investigates the mechanisms behind firms' decisions to participate in voluntary initiatives. First, the dissertation investigates the antecedents for manufacturing firms' seeking ISO 14001 environmental management systems certification in Japan, a country with the largest number of ISO 14001-certified sites in the world. The results show that the decisions of Japanese firms to seek ISO 14001 certification are significantly affected by the firm size, average age of employees, export ratios and debt ratios. Other studies also underscore the importance of international trade to Japanese manufacturers in seeking ISO 14001 certification. Secondly, the dissertation looks into the antecedents for forest products companies' seeking forest certification in Canada, one of the major forest products producers in the world. Specifically, three major forest certification schemes are considered: (1) ISO 14001, (2) the Canadian Standards Association Sustainable Forest Management certification, and (3) the Forest Stewardship Council certification. The estimation of empirical models shows that the decisions of Canadian forest firms to seek forest certification are, in general, affected by export intensity; in the case of ISO 14001, they are also affected by reliance on secure tenure holdings. Thirdly, the dissertation examines the antecedents for Canadian industrial firms' participation in the Voluntary Challenge and Registry (VCR) Program, Canada's voluntary challenge program aimed at reducing greenhouse gas emissions to mitigate climate change. The results show that larger firms and those in the energy-intensive sector are more committed to climate change mitigation. In this case, anticipation of future government policies seems to play a major role in firms' participation in the challenge program.
Solutions to five problems on tensor products of lattices and related matters
Creators: name: Wehrung, Friedrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 06B05, 06B15

description: The notion of a capped tensor product, introduced by G. Grätzer and the author, provides a convenient framework for the study of tensor products of lattices that makes it possible to extend many results from the finite case to the infinite case. In this paper, we answer several open questions about tensor products of lattices. Among the results that we obtain are the following. Theorem 2. Let A be a lattice with zero. If $A \otimes L$ is a lattice for every lattice L with zero, then A is locally finite and $A \otimes L$ is a capped tensor product for every lattice L with zero. Theorem 5. There exists an infinite, three-generated, 2-modular lattice K with zero such that $K \otimes K$ is a capped tensor product. Here, 2-modularity is a weaker identity than modularity, introduced earlier by G. Grätzer and the author.
Notes on John Philoponus and the tritheist controversy in the sixth century
Creators: name: Lang, Uwe Michael
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 85 (2001): Oriens christianus, Band 85
Renormalisation Group approach to pandemics as a time-dependent SIR model
Creators: name: Della Morte, Michele
name: Sannino, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We generalise the epidemic Renormalisation Group framework while connecting it to a SIR model with time-dependent coefficients. We then confront the model with COVID-19 in Denmark, Germany, Italy and France and show that the approach works rather well in reproducing the data. We also show that a better understanding of the time dependence of the recovery rate would require extending the model to take into account the number of deaths whenever these are over 15% of the total number of infected cases.
description: 9 pages, 5 figures
Low-Energy Hadron Production Data and Current Status of CERN Measurements
Creators: name: Barr, Giles
name: Engel, Ralph
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Data on low-energy hadron production in collisions of nucleons, pions and kaons with light nuclei are needed for many astrophysical and accelerator applications. Modern simulations have reached a level of accuracy that the lack of detailed understanding of hadron production processes has become one of the most important limitations to further improvements. After giving some examples of hadroproduction processes in astrophysics and neutrino experiments we briefly review existing fixed-target data on light nuclei. Preliminary results and prospects of current CERN measurements (HARP, NA49) are discussed.
description: Invited talk given at XIII ISVHECRI, Pylos (Greece), Sept. 2004; 8 pages, 9 figures, to appear in Nucl. Phys. B (Proc. Suppl.)
Phenomenological and Cosmological Aspects of a Minimal GUT Scenario
Creators: name: Dorsner, Ilja
name: Perez, Pavel Fileviez
name: Felipe, Ricardo Gonzalez
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Several phenomenological and cosmological aspects of a minimal extension of the Georgi-Glashow model, where the Higgs sector is composed by 5_H, 15_H, and 24_H, are studied. It is shown that the constraints coming from the unification of gauge interactions up to two-loop level predict light scalar leptoquarks. In this GUT scenario, the upper bound on the total proton decay lifetime is tau_p < 1.4 x 10^36 years. The possibility to explain the matter-antimatter asymmetry in the universe through the decays of SU(2)_L scalar triplets is also studied. We find that a successful triplet seesaw leptogenesis implies an upper bound on the scalar leptoquark mass, M_Phib < 10^{6-7} GeV. We conclude that this GUT scenario can be tested at the next generation of proton decay experiments and future colliders through the production of scalar leptoquarks.
description: 20 pages, 3 eps figures
Additional file 1 of Genome-wide methylation patterns predict clinical benefit of immunotherapy in lung cancer
Creators: name: Kim, Jeong Yeon
name: Choi, Jung Kyoon
name: Jung, Hyunchul
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Survival plots of previously known biomarkers. (a) tumor mutation burden (b) neo-antigen load (c) aneuploidy level (d) PD-L1 expression. Mutation burden, neo-antigen load, and aneuploidy level were calculated with exome-sequencing data (n = 60) and PD-L1 expression was obtained from RNA-sequencing data (n = 28).
Supersymmetric Theories of Neutrino Dark Energy
Creators: name: Fardon, Rob
name: Nelson, Ann E.
name: Weiner, Neal
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a supersymmetric model of dark energy from Mass Varying Neutrinos which is stable against radiative corrections to masses and couplings, and free of dynamical instabilities. This is the only such model of dark energy involving fields with significant couplings to any standard model particle. We briefly discuss consequences for neutrino oscillations and solar neutrinos.
description: 22 pages, 4 figures
Additional file 1 of Evaluation of the effectiveness of comprehensive drug price reform: a case study from Shihezi city in Western China
Creators: name: Taoyu Lin
name: Zhaohui Wu
name: Menming Liu
name: Xiangwei Wu
name: Xinping Zhang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Computational Biology

description: Additional file 1: Fig. S1. The proportion of per capita DE in per capita HE in China, 2007–2017.
Exploring algae-derived biostimulants: a novel approach to boost beneficial bacterial strains for tomato growth enhancement
Creators: name: Amoroso Lospes de Carvalho, Lucas
name: Rodrigues dos Santos, Ana Sofia
name: Vílchez, Juan Ignacio
Publisher: name: Zenodo
Year: 2023

description: Evaluate shifts caused by the addition of alga extracts to the native culturable microbiota of an alkaline soil (pH ~ 9), as well as to evaluate the potential of these changes to increase plant health and productivity under the same stressed soil
Join-semilattices with two-dimensional congruence amalgamation
Creators: name: Wehrung, Friedrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 06B10, 06E05

description: We say that a (∨,0)-semilattice S is conditionally co-Brouwerian, if (1) for all nonempty subsets X and Y of S such that X $\leq$ Y (i.e., x $\leq$ y for all (x, y) $\in$ X x Y), there exists z $\in$ S such that X $\leq$ z $\leq$ Y, and (2) for every subset Z of S and all a, b $\in$ S, if a $\leq$ b ∨ z for all z $\in$ Z, then there exists c $\in$ S such that a $\leq$ b ∨ c and c $\leq$ Z. By restricting this deﬁnition to subsets X, Y, and Z of less than $κ$ elements, for an inﬁnite cardinal $κ$, we obtain the deﬁnition of a conditionally $κ$- co-Brouwerian (∨, 0)-semilattice. We prove that for every conditionally co-Brouwerian lattice S and every partial lattice P, every (∨, 0)-homomorphism $ϕ$: Conc P $\to$ S can be lifted to a lattice homomorphism f : P $\to$ L, for some relatively complemented lattice L. Here, Conc P denotes the (∨, 0)-semilattice of compact congruences of P. We also prove a two-dimensional version of this result, and we establish partial converses of our results and various of their consequences in terms of congruence lattice representation problems. Among those consequences, for every inﬁnite regular cardinal $κ$ and every conditionally $κ$-co-Brouwerian S of size $κ$, there exists a relatively complemented lattice L with zero such that Conc L is isomorphic to S.
Internal circulation in tidally locked massive binary stars -- Consequences for double black hole formation
Creators: name: Hastings, Ben
name: Langer, Norbert
name: Koenigsberger, Gloria
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Steady-state circulation currents are predicted in tidally deformed binary stars, which are believed to be progenitors of double black-hole merger events. This work aims to quantitatively characterise the steady-state circulation currents in components of a tidally locked binary system and to explore the effects of such currents on numerical models. Previous results describing the circulation in a single rotating star and a binary star are used to deduce a new prescription for the internal circulation in tidally locked binaries. We explore the effect of this prescription numerically for binary systems with primary masses between 25 and 100 solar masses. When comparing circulation velocities in the radial direction for the single rotating star and binary star, it is found that the average circulation velocity in the binary star may be described as an enhancement to the circulation velocity in a single rotating star. This velocity enhancement is a simple function depending on the masses of the binary components and amounts to a factor of approximately two when the components have equal masses. It is found that the ehancement causes the formation of double helium stars through efficient mixing to occur for systems with higher initial orbital periods, lower primary masses and lower mass ratios, compared to the standard circulation scenario. Taking into account appropriate distributions for primary mass, initial period and mass ratio, models with enhanced mixing predict 2.4 times more double helium stars being produced in the parameter space than models without. We conclude that the effects of companion-induced circulation have strong implications for the formation of close binary black holes. Not only do the predicted detection rates increase but double black-hole systems with mass ratios as low as 0.8 may be formed when companion-induced circulation is taken into account.
description: 17 pages, 10 figures, accepted for publication in A&A
The extended mapping class group is generated by three symmetries
Creators: name: Stukow, Michal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We prove that the extended mapping class group is generated by three orientation reversing involutions.
description: A version of the article which appeared in C. R. Acad. Sci
Additional file 2 of Evaluation of the effectiveness of comprehensive drug price reform: a case study from Shihezi city in Western China
Creators: name: Taoyu Lin
name: Zhaohui Wu
name: Menming Liu
name: Xiangwei Wu
name: Xinping Zhang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Computational Biology

description: Additional file 2 : Table S1. ITSA results of medical expenses. Table S2. ITSA results of the distribution of medical expense. Table S3. ITSA results of medical utilisation in different hospitals. Table S4. ITSA results of BMI reimbursement in different hospitals.
Bounds for an integral of the modified Bessel function of the first kind and expressions involving it
Creators: name: Gaunt, Robert E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 33C10, 26D15

description: Simple upper and lower bounds are obtained for the integral $\int_0^x\mathrm{e}^{-γt}t^νI_ν(t)\,\mathrm{d}t$, $x>0$, $ν>-\frac{1}{2}$, $0
description: 18 pages
The 1st INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue
Creators: name: Rau, A.
name: Kienlin, A. v.
name: Hurley, K.
name: Lichti, G. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the sample of gamma-ray bursts detected with the anti-coincidence shield ACS of the spectrometer SPI on-board INTEGRAL for the first 26.5 months of mission operation (up to Jan 2005). SPI-ACS works as a nearly omnidirectional gamma-ray burst detector above ~80 keV but lacks spatial and spectral information. In this catalogue, the properties derived from the 50 ms light curves (e.g., T90, Cmax, Cint, variability, V/Vmax) are given for each candidate burst in the sample. A strong excess of very short events with durations <0.25 s is found. This population is shown to be significantly different from the short- and long-duration burst sample by means of the intensity distribution and V/Vmax test and is certainly connected with cosmic ray hits in the detector. A rate of 0.3 true gamma-ray bursts per day is observed.
description: 10 pages, 9 figures, A&A accepted
Information disorders on Italian Facebook during COVID-19 infodemic
Creators: name: Celestini, Alessandro
name: Di Giovanni, Marco
name: Guarino, Stefano
name: Pierri, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: In this work we carry out an exploratory analysis of online conversations on the Italian Facebook during the recent COVID-19 pandemic. We analyze the circulation of controversial topics associated with the origin of the virus, which involve popular targets of misinformation, such as migrants and 5G technology. We collected over 1.5 M posts in Italian language and related to COVID-19, shared by nearly 80k public pages and groups for a period of four months since January 2020. Overall, we find that potentially harmful content shared by unreliable sources is substantially negligible compared to traditional news websites, and that discussions over controversial topics has a limited engagement w.r.t to the pandemic in general. Besides, we highlight a "small-worldness" effect in the URL sharing diffusion network, indicating that users navigating through a limited set of pages could reach almost the entire pool of shared content related to the pandemic, thus being easily exposed to harmful propaganda as well as to verified information on the virus.
description: 16 pages, 13 figures, 7 tables
Additional file 3 of Contiguous and stochastic CHH methylation patterns of plant DRM2 and CMT2 revealed by single-read methylome analysis
Creators: name: Harris, Keith D.
name: Zemach, Assaf
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3 Review history.
Confluent Layered Drawings
Creators: name: Eppstein, David
name: Goodrich, Michael T.
name: Meng, Jeremy Yu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: F.2.2

description: We combine the idea of confluent drawings with Sugiyama style drawings, in order to reduce the edge crossings in the resultant drawings. Furthermore, it is easier to understand the structures of graphs from the mixed style drawings. The basic idea is to cover a layered graph by complete bipartite subgraphs (bicliques), then replace bicliques with tree-like structures. The biclique cover problem is reduced to a special edge coloring problem and solved by heuristic coloring algorithms. Our method can be extended to obtain multi-depth confluent layered drawings.
description: 11 pages, 6 figures. A preliminary version of this paper appeared in Proc. 12th Int. Symp. Graph Drawing, New York, 2004, Lecture Notes in Comp. Sci. 3383, 2004, pp. 184-194
Two-community noisy Kuramoto model with general interaction strengths: Part I
Creators: name: Achterhof, Stefan
name: Meylahn, Janusz M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We generalize the study of the noisy Kuramoto model, considered on a network of two interacting communities, to the case where the interaction strengths within and across communities are taken to be different in general. By developing a geometric interpretation of the self-consistency equations, we are able to separate the parameter space into ten regions in which we identify the maximum number of solutions in the steady state. Furthermore, we prove that in the steady-state only the angles 0 and $π$ are possible between the average phases of the two communities and derive the solution boundary for the unsynchronized solution. Lastly, we identify the equivalence class relation in the parameter space corresponding to the symmetrically synchronized solution.
description: 16 pages 4 figures
Direct decompositions of non-algebraic complete lattices
Creators: name: Wehrung, Friedrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 06B05, 06B23, 06B35, 06D05

description: For a given complete lattice L, we investigate whether L can be decomposed as a direct product of directly indecomposable lattices. We prove that this is the case if every element of L is a join of join-irreducible elements and dually, thus extending to non-algebraic lattices a result of L. Libkin. We illustrate this by various examples and counterexamples.
Julius Aßfalgs Rolle bei der Identifizierung des in Speyer gefundenen Blattes des Codex Argenteus
Creators: name: Kaufhold, Hubert
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 85 (2001): Oriens christianus, Band 85
Very High Energy Cosmic Rays and Their Interactions
Creators: name: Engel, Ralph
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The investigation of high energy cosmic rays and their interactions is a very active field of research. This article summarizes the progress made during the last years as reflected by the contributions to the XIII International Symposium on Very High Energy Cosmic Ray Interactions held in Pylos, Greece.
description: Summary talk given at XIII ISVHECRI, Pylos (Greece), Sept. 2004; 22 pages, 8 figures, to appear in Nucl. Phys. B (Proc. Suppl.)
Characterization of liposomal drug delivery systems utilizing cell culture methods
Creators: name: Shew, Clifford R.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis deals with the characterization of liposomal drug delivery systems utilizing cell culture methods. Drug bioavailability from liposomes is believed to be an important factor in determining the therapeutic activity of a drug. Therefore, the development of liposomes that ensure full drug bioavailability or deliver their contents to the cell cytoplasm are under investigation. To develop liposomes capable of cytoplasmic delivery, it is necessary to have an assay procedure capable of distinguishing between cell surface binding and intracellular delivery. The research presented in this thesis addresses this central problem by developing assays that characterize liposomes specifically designed for cytoplasmic delivery. One liposomal formulation designed for improved cytoplasmic delivery, termed programmable fusogenic vesicles (PFVs), has shown promising preliminary results in vivo. Initial studies examined the bioavailability of mitoxantrone, an anticancer agent, encapsulated in PFVs and conventional liposomes to assess drug-induced toxicity against a human cell line (HEK 293) and a murine cell line (L1210) in vitro. These studies demonstrated greater mitoxantrone cytotoxicity when the drug was encapsulated in PFVs as compared to conventional liposomes. Subsequent studies utilized a lipid-mixing assay employing the lipid probe Rhodamine-PE (Rh-PE) to characterize fusion of PFVs with cellular membranes. These studies demonstrated that PFVs were capable of fusion with HEK 293 cells. An assay employing the nucleic acid dye, YOYO-1 iodide, was developed to quantitate cytoplasmic delivery to cultured cells. This novel assay was then used to compare the ability of PFVs to achieve cytoplasmic delivery. The results also demonstrated that cytoplasmic delivery of YOYO was greater when encapsulated within PFVs compared to other liposomal formulations. Moreover, the importance of individual lipid components in the PFV formulation to the cytoplasmic delivery of YOYO was established. To assess the therapeutic potential of these PFV formulations, studies with antisense oligonucleotides (ASO) were completed. Intracellular delivery of fluorescentlabeled ASO encapsulated in PFVs was quantitated by flow cytometry and confirmed using fluorescence microscopy. Furthermore, an antisense oligonucleotide to the bcl-2 gene encapsulated in PFVs demonstrated down-regulation of mRNA levels by 20% compared to empty PFVs and free antisense in a human melanoma cell line (518A2). The development of PFVs for use in the cytoplasmic delivery of toxic drugs or biologically active nucleotide sequences is discussed.
Four-Point One-Loop Amplitude Computation in the Pure Spinor Formalism
Creators: name: Mafra, Carlos R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The massless 4-point one-loop amplitude computation in the pure spinor formalism is shown to agree with the computation in the RNS formalism.
description: 10 pages harvmac tex
Field Theoretic Study of Bilayer Membrane Fusion: II. Mechanism of a Stalk-Hole Complex
Creators: name: Katsov, Kirill
name: Mueller, Marcus
name: Schick, Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We use self-consistent field theory to determine structural and energetic properties of intermediates and transition states involved in bilayer membrane fusion. In particular, we extend our original calculations from those of the standard hemifusion mechanism, which was studied in detail in the first paper of this series, to consider a possible alternative to it. This mechanism involves non-axial stalk expansion, in contrast to the axially symmetric evolution postulated in the classical mechanism. Elongation of the initial stalk facilitates the nucleation of holes and leads to destabilization of the fusing membranes via the formation of a stalk-hole complex. We study properties of this complex in detail, and show how transient leakage during fusion, previously predicted and recently observed in experiment, should vary with system architecture and tension. We also show that the barrier to fusion in the alternative mechanism is lower than that of the standard mechanism by a few $k_BT$ over most of the relevant region of system parameters, so that this alternative mechanism is a viable alternative to the standard pathway.
Additional file 1 of Contiguous and stochastic CHH methylation patterns of plant DRM2 and CMT2 revealed by single-read methylome analysis
Creators: name: Harris, Keith D.
name: Zemach, Assaf
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1 Supplementary figures.
Conjugacy classes of finite subgroups of certain mapping class groups
Creators: name: Stukow, Michal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We give a complete description of conjugacy classes of finite subgroups of the mapping class group of the sphere with r marked points. As a corollary we obtain a description of conjugacy classes of maximal finite subgroups of the hyperelliptic mapping class group. In particular, we prove that for a fixed genus g there are at most five such classes.
description: A version of the paper which appeared in Turkish J. of Math
Magnetic Flux Emergence in a Coronal Hole
Creators: name: Palacios, J.
name: Utz, D.
name: Hofmeister, S.
name: Krikova, K.
name: Gömöry, P.
name: Kuckein, C.
name: Denker, C.
name: Verma, M.
name: Manrique, S. J. González
name: Rozo, J. I. Campos
name: Koza, J.
name: Temmer, M.
name: Veronig, A.
name: Diercke, A.
name: Kontogiannis, I.
name: Cid, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A joint campaign of various space-borne and ground-based observatories, comprising the Japanese Hinode mission (HOP~338, 20\,--\,30~September 2017), the GREGOR solar telescope, and the \textit{Vacuum Tower Telescope} (VTT), investigated numerous targets such as pores, sunspots, and coronal holes. In this study, we focus on the coronal hole region target. On 24~September 2017, a very extended non-polar coronal hole developed patches of flux emergence, which contributed to the decrease of the overall area of the coronal hole. These flux emergence patches erode the coronal hole and transform the area into a more quiet-Sun-like area, whereby bipolar magnetic structures play an important role. Conversely, flux cancellation leads to the reduction of opposite-polarity magnetic fields and to an increase in the area of the coronal hole. Other global coronal hole characteristics, including the evolution of the associated magnetic flux and the aforementioned area evolution in the EUV, are studied using data of the \textit{Helioseismic and Magnetic Imager} (HMI) and \textit{Atmospheric Imaging Assembly} (AIA) onboard the \textit{Solar Dynamics Observatory} (SDO). The interplanetary medium parameters of the solar wind display parameters compatible with the presence of the coronal hole. Furthermore, a particular transient is found in those parameters.
description: 24 pages
Effect of trap symmetry and atom-atom interactions on a trapped atom interferometer with internal state labelling
Creators: name: Dupont-Nivet, M.
name: Westbrook, C. I.
name: Schwartz, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this paper, we study the dynamics of a trapped atom interferometer with internal state labelling in the presence of interactions. We consider two situations: an atomic clock in which the internal states remain superposed, and an inertial sensor configuration in which they are separated. From the average spin evolution, we deduce the fringe contrast and the phase-shift. In the clock configuration, we recover the well-known identical spin rotation effect (ISRE) which can significantly increase the spin coherence time. We also find that the magnitude of the effect depends on the trap geometry in a way that is consistent with our recent experimental results in a clock configuration [M. Dupont-Nivet, and al., New J. Phys., 20, 043051 (2018)], where ISRE was not observed. In the case of an inertial sensor, we show that despite the spatial separation it is still possible to increase the coherence time by using mean field interactions to counteract asymmetries of the trapping potential.
description: 18 pages, 5 figures
Dynamics of the spatially homogeneous Bianchi type I Einstein-Vlasov equations
Creators: name: Heinzle, J. Mark
name: Uggla, Claes
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the dynamics of spatially homogeneous solutions of the Einstein-Vlasov equations with Bianchi type I symmetry by using dynamical systems methods. All models are forever expanding and isotropize toward the future; toward the past there exists a singularity. We identify and describe all possible past asymptotic states; in particular, on the past attractor set we establish the existence of a heteroclinic network, which is a new type of feature in general relativity. This illustrates among other things that Vlasov matter can lead to quite different dynamics of cosmological models as compared to perfect fluids.
description: 28 pages, 7 figures
An 8-dimensional Taub-NUT-like hyper-Kähler metric in harmonic superspace formalism
Creators: name: Smilga, A. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Using the harmonic superspace formalism, we find the metric of a certain 8-dimensional manifold. This manifold is not compact and represents an 8-dimensional generalization of the Taub-NUT manifold. Our conjecture is that the metric that we derived is equivalent to the known metric possessing a discrete $Z_2$ isometry, which may be obtained from the metric describing the dynamics of four BPS monopoles by Hamiltonian reduction.
description: 11 pages
DNA versus RNA -- which shows higher electronic conduction?
Creators: name: Aggarwal, Abhishek
name: Bag, Saientan
name: Venkatramani, Ravindra
name: Jain, Manish
name: Maiti, Prabal K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In this study, we compare the charge transport properties of multiple (double stranded) dsRNA sequences with corresponding dsDNA sequences. Recent studies have presented a contradictory picture of relative charge transport efficiencies in A-form DNA:RNA hybrids and dsDNA. Using a multiscale modelling framework, we compute conductance of dsDNA and dsRNA using Landauer formalism in coherent limit and Marcus-Hush theory in the incoherent limit. We find that dsDNA conducts better than dsRNA in both the charge transport regimes. Our analysis shows that the structural differences in the twist angle and slide of dsDNA and dsRNA are the main reasons behind the higher conductance of dsDNA in the incoherent hopping regime. In the coherent limit however, for the same base pair length, the conductance of dsRNA is higher than that of dsDNA for the morphologies where dsRNA has smaller end-to-end length relative to that of dsDNA.
description: This article is under review at Nanoscale
title: Ηγεσία και δυναμική της ομάδας στους οργανισμούς υγείας και κοινωνικής φροντίδας
title: Leadership and teams dynamics in health and social care organizations
titleType: AlternativeTitle
Creators: name: Ζακυνθινού, Αλίκη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Ηγεσία
Δυναμική ομάδας
Οργανισμοί υγείας
Κοινωνική φροντίδα
Ηγέτης

description: Μια πολύ πλούσια βιβλιογραφία υπάρχει σχετικά με το θέμα της ηγεσίας από την αρχαιότητα έως σήμερα, γεγονός που αναδεικνύει τη σπουδαιότητά της σε όλους τους τομείς της κοινωνικής ζωής. Είναι πολλές και διαφορετικές οι θεωρίες και οι προσεγγίσεις της έννοιας της ηγεσίας, καθώς οι κοινωνίες εξελίσσονται και η ηγεσία καλείται να καλύπτει κάθε φορά διαφορετικές ανάγκες και να προσαρμόζεται σε διαφορετικές καταστάσεις. Από την άλλη πλευρά, η ανάγκη στις μέρες μας για όλο και περισσότερη συμμετοχική εργασία οδηγεί στη σπουδαιότητα κατανόησης της ανθρώπινης συμπεριφοράς και του τρόπου λειτουργίας των ομάδων και της δυναμικής τους. Ο ανθρώπινος παράγοντας είναι βασικός για τη λειτουργία όλων των Οργανισμών και ιδιαίτερα των Οργανισμών Υγείας και Κοινωνικής Φροντίδας, Στόχος της σύγχρονης ηγεσίας στο χώρο της υγείας, είναι να αξιοποιήσει σωστά τον ανθρώπινο παράγοντα, η ποιότητα του οποίου συνδέεται άμεσα με την ποιότητα της φροντίδας υγείας. Το όραμα, η συμμετοχική εργασία, ο άνθρωπος είναι τα νέα ζητούμενα για τη στροφή σε ένα ανθρώπινο πρόσωπο της ηγεσίας υπό το πρίσμα των αλληλεξαρτήσεων με τα άτομα και το περιβάλλον.
Additional file 1 of Mechanisms affecting exercise ventilatory inefficiency-airflow obstruction relationship in male patients with chronic obstructive pulmonary disease
Creators: name: Chuang, Ming-Lung
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary Table. Summary of correlation (r) of V ̇ E / V ̇ CO 2 $$ \dot{\mathrm{V}}\mathrm{E}/\dot{\mathrm{V}}\mathrm{CO}2 $$ slope ( V ̇ E / V ̇ CO 2 S $$ \dot{\mathrm{V}}\mathrm{E}/\dot{\mathrm{V}}\mathrm{CO}2\mathrm{S} $$ ) and its intercept ( V ̇ E / V ̇ CO 2 I $$ \dot{\mathrm{V}}\mathrm{E}/\dot{\mathrm{V}}\mathrm{CO}2\mathrm{I} $$ ) with pulmonary physiology.