cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electron optics with dirac fermions: electron transport in monolayer and bilayer graphene through magnetic barrier and their superlattices
Creators: name: Agrawal, Neetu
name: Ghosh, Sankalpa
name: Sharma, Manish
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this review article we discuss the recent progress in studying ballistic transport for charge carriers in graphene through highly inhomogenous magnetic field known as magnetic barrier in combination with gate voltage induced electrostatic potential. Starting with cases for a single or double magnetic barrier we also review the progress in understanding electron transport through the superlattices created out of such electromagnetic potential barriers and discuss the possibility of experimental realization of such systems. The emphasis is particularly on the analogy of such transport with propagation of light wave through medium with alternating dielectric constant. In that direction we discuss electron analogue of optical phenomena like fabry perot resonances, negative refraction, Goos-Hänchen effect, beam collimation in such systems and explain how such analogy is going to be useful for device generation. The resulting modification of band structure of dirac fermions, the emergence of additional dirac points was also discussed accompanied by brief section on the interconvertibility of electric and magnetic field for relativistic dirac fermions. We also discuss the effect of such electromagnetic potential barrier on bilayer graphene in a similar framework.
description: To be published as an invited review article in International Journal of Modern Physics B
Análise de palavras chaves: um estudo sobre os descritores da Arquivologia Digital utilizando 20 periódicos científicos
Creators: name: Figueiredo, Thiago
Publisher: name: Zenodo
Year: 2022
Subjects: digital file
archival records
archival access
digital documents
digital preservation
digital curation
archival classification
information science
eletronic record

description: Essa análise tem por objetivo, realizar uma atividade de pesquisa referente a disciplina Tecnologia da Informação. O tema pesquisado foi Arquivologia Digital e foi retirado uma amostra pequena de 20 artigos.
title: ЭКСПЕРИМЕНТАЛЬНОЕ ОБОСНОВАНИЕ РАННЕГО ЭНТЕРАЛЬНОГО ПИТАНИЯ ПРИ РЕЗЕКЦИИ ТОНКОЙ КИШКИ
title: EXPERIMENTAL RATIONALE OF EARLY ENTERAL NUTRITION IN BOWEL RESECTION
Creators: name: Краснов, Евгений Анатольевич
name: Дарвин, Владимир Васильевич
name: Варганова, Александра Николаевна
name: Бубович, Елена Владимировна
name: Климова, Наталья Валерьевна
name: Видуто, Валентина Евгеньевна
Publisher: name: Сургутский государственный университет
Year: 2019

description: Цель – провести комплексный анализ влияния раннего энтерального питания на послеоперационную ди-
намику клинико-лабораторных, функциональных и морфологических параметров у экспериментальных жи-
вотных, оперированных на тонкой кишке. Материал и методы. Проведено экспериментальное исследова-
ние на 20 кроликах-самцах породы шиншилла. В процессе исследования изучены исходы раннего энтераль-
ного питания в сравнении с парентеральным при резекции тонкой кишки на основании оценки лабораторных
и функциональных показателей, а также морфологической картины заживления тонкокишечных анастомозов
у экспериментальных животных. Исследование проведено с соблюдением Европейской конвенции по защите
позвоночных животных, используемых для экспериментов и в иных научных целях. Результаты. Полученные
данные позволяют сделать вывод, что проводимое раннее энтеральное питание способствует более быстрому
восстановлению белкового и энергетического обмена, ускоряет нормализацию функции желудочно-кишечного
тракта и процессы эпителизации в зоне анастомоза.
description: The aim of the study is to conduct a comprehensive analysis of the effect of early enteral nutrition on the
postsurgery dynamics of clinical, laboratory, functional and morphological parameters in experimental animals
with the operated small intestine. Material and methods. An experimental study is conducted on 20 male
Chinchilla rabbits. During the study, the outcomes of early enteral nutrition compared with parenteral in resection
of the small intestine are studied based on the assessment of laboratory and functional parameters, as well as the
morphological pattern of the healing of small intestinal anastomoses. The study is conducted in compliance with all
the International Recommendations of the European Convention for the Protection of Vertebrate Animals Used for
Experimental and other Scientific Purposes. Results. The results allow concluding that the conducted early enteral
nutrition contributes to the quick recovery of protein and energy metabolism, accelerates the normalization of the
function of the gastrointestinal tract and epithelialization processes in the anastomosis zone.
Extracting equation of state parameters from black hole-neutron star mergers: aligned-spin black holes and a preliminary waveform model
Creators: name: Lackey, Benjamin D.
name: Kyutoku, Koutarou
name: Shibata, Masaru
name: Brady, Patrick R.
name: Friedman, John L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Information about the neutron-star equation of state is encoded in the waveform of a black hole-neutron star system through tidal interactions and the possible tidal disruption of the neutron star. During the inspiral this information depends on the tidal deformability Lambda of the neutron star, and we find that Lambda is the best measured parameter during the merger and ringdown as well. We performed 134 simulations where we systematically varied the equation of state as well as the mass ratio, neutron star mass, and aligned spin of the black hole. Using these simulations we have developed an analytic representation of the full inspiral-merger-ringdown waveform calibrated to these numerical waveforms, and we use this analytic waveform to estimate the accuracy to which Lambda can be measured with gravitational-wave detectors. We find that although the inspiral tidal signal is small, coherently combining this signal with the merger-ringdown matter effect improves the measurability of Lambda by a factor of ~3 over using just the merger-ringdown matter effect alone. However, incorporating correlations between all the waveform parameters then decreases the measurability of Lambda by a factor of ~3. The uncertainty in Lambda increases with the mass ratio, but decreases as the black hole spin increases. Overall, a single Advanced LIGO detector can measure Lambda for mass ratios Q = 2--5, black hole spins J_BH/M_BH^2 = -0.5--0.75, neutron star masses M_NS = 1.2M_sun--1.45M_sun, and an optimally oriented distance of 100Mpc to an uncertainty of ~10%--100%. For the proposed Einstein Telescope, the uncertainty in Lambda is an order of magnitude smaller.
description: 22 pages, 16 figures, submitted to Phys. Rev. D
title: Rücknahme/Retraction
Creators: name: Journal für Kulturpflanzen
Publisher: name: Julius Kühn-Institut - Bundesforschungsinstitut für Kulturpflanzen
Year: 2019

description: Der Artikel "Die ökonomische Bedeutung des Wirkstoffes Glyphosat für den Ackerbau in Deutschland" wird ab 18.12.2019 redaktionsseitig zurückgenommen. Der Grund hierfür ist eine Nichtoffenlegung der Finanzierungsquelle der Studie und damit ein möglicher Interessenskonflikt eines der Autoren, P. Michael Schmitz, während der Publikation des Artikels. Eine korrekte Offenlegung hätte möglicherweise den Begutachtungsprozess beeinflusst. Somit ist nach den Richtlinien des Committee on Publication Ethics eine Rücknahme des Artikels notwendig. Allerdings bedeutet die Rücknahme nicht, dass die Studie Fehler in den Methoden oder Ergebnissen enthält. Dies wurde durch zwei unabhängige Gutachter sorgfältig überprüft. Der Herausgeber des Journals für Kulturpflanzen hat die Rücknahme nach intensiver Abwägung getroffen und bittet alle Leserinnen und Leser der Zeitschrift um Entschuldigung, dass der mögliche Interessenskonflikt nicht schon während der Einreichung erkannt wurde.
description: The Editors retract the article “Agro-Economic Analysis of the use of Glyphosate in Germany” as of December 18, 2019. The reason is non-disclosure of a financial source supporting this study and, thus, a potential conflict of interest by author P. Michael Schmitz at the time of publication. A correct disclosure might have influenced the peer-review process, hence, a retraction is required, as advised by the Committee of Publication Ethics. However, this retraction does not suggest any errors in methodology or the results of the study, which have been assessed two independent reviewers.
The Editor-in-Chief takes a very strong view on this matter and apologies are offered to readers of the journal, that this was not detected during the submission process.
Tree-level contribution to \bar{B} -> X_d gamma using fragmentation functions
Creators: name: Asatrian, H. M.
name: Greub, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the most important tree-level contributions connected with the b-> u \bar{u} d gamma transition to the inclusive radiative decay \bar{B}-> X_d gamma using fragmentation functions. In this framework the singularities arising from collinear photon emission from the light quarks (u, \bar{u} and d) can be absorbed into the (bare) quark-to-photon fragmentation function. We use as input the fragmentation function extracted by the ALEPH group from the two-jet cross section measured at LEP, where one of the jets is required to contain a photon. To get the quark-to-photon fragmentation function at the fragmentation scale μ_F \sim m_b, we use the evolution equation, which we solve numerically. We then calculate the (integrated) photon energy spectrum for b-> u \bar{u} d gamma related to the operators P^u_{1,2}. For comparison, we also give the corresponding results when using nonzero (constituent) masses for the light quarks.
description: 13 pages, 4 figures
title: Rücknahme/Retraction
Creators: name: Journal für Kulturpflanzen
Publisher: name: Julius Kühn-Institut - Bundesforschungsinstitut für Kulturpflanzen
Year: 2019

description: Der Artikel “Konservierende Bodenbearbeitung in Deutschland als Lösungsbeitrag gegen Bodenerosion” wird ab 18.12.2019 redaktionsseitig zurückgenommen. Der Grund hierfür ist eine Nichtoffenlegung der Finanzierungsquelle der Studie und damit ein möglicher Interessenskonflikt einer der Autoren, Michael Schmitz, während der Publikation des Artikels. Eine korrekte Offenlegung hätte möglicherweise den Begutachtungsprozess beeinflusst. Somit ist nach den Richtlinien des Committee on Publication Ethics eine Rücknahme des Artikels notwendig. Allerdings bedeutet die Rücknahme nicht, dass die Studie Fehler in den Methoden oder Ergebnissen enthält. Dies wurde durch zwei unabhängige Gutachter sorgfältig überprüft. Der Herausgeber des Journals für Kulturpflanzen hat die Rücknahme nach intensiver Abwägung getroffen und bittet alle Leserinnen und Leser der Zeitschrift um Entschuldigung, dass der mögliche Interessenskonflikt nicht schon während der Einreichung erkannt wurde.
description: The Editors retract the article “Conservation tillage in Germany: A solution of soil erosion” as of December 18, 2019. The reason is non-disclosure of a financial source supporting this study and, thus, a potential conflict of interest by author Michael Schmitz at the time of publication. A correct disclosure might have influenced the peer-review process, hence, a retraction is required, as advised by the Committee of Publication Ethics. However, this retraction does not suggest any errors in methodology or the results of the study, which have been assessed two independent reviewers.
The Editor-in-Chief takes a very strong view on this matter and apologies are offered to readers of the journal, that this was not detected during the submission process.
The hybrid surface flux method for the ionization amplitude extraction from the calculated wavefunction
Creators: name: Serov, Vladislav V.
name: Sergeeva, Tatyana A.
name: Vinitsky, Sergue I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A method is proposed for extracting ionization amplitudes from the solution of the time-dependent Schrödinger equation (TDSE) describing a system in a time-dependent external field. The method is a hybrid of two earlier developed methods, the time-dependent surface flux (t-SURFF) method and the method using the propagated wavepacket as the source term in a time-independent driven Schrödinger equation with the field-free Hamiltonian. It is demonstrated that the method combines the advantages of the parent ones and allows the extraction of ionization amplitudes by solving the TDSE within a small spatial domain (with the boundary conditions provided by exterior complex scaling) and a time interval, not exceeding the external field pulse duration.
description: 17 pages, 4 figures
Minimization of ion micromotion using ultracold atomic probes
Creators: name: Härter, A.
name: Krükow, A.
name: Brunner, A.
name: Denschlag, J. Hecker
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on a new sensitive method to minimize excess micromotion of an ion in a Paul trap. The ion is placed in an ultracold cloud of neutral Rb atoms in which ionic micromotion induces atomic losses and heating. Micromotion is minimized by applying static electric offset fields such that both loss and heating are minimized. We achieve a compensation precision as high as the best compensation methods to date. In contrast to these methods, our scheme is applicable even for ions that cannot be optically probed. Furthermore, our method avoids the formation of temporary patch charges which are a main issue for the long-term stability of micromotion minimization.
description: 5 pages, 4 figures, 1 table
From the Holomorphic Wilson Loop to `d log' Loop-Integrands of Super-Yang-Mills Amplitudes
Creators: name: Lipstein, Arthur E.
name: Mason, Lionel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The S-matrix for planar N = 4 super Yang-Mills theory can be computed as the correlation function for a holomorphic polygonal Wilson loop in twistor space. In an axial gauge, this leads to the construction of the all-loop integrand via MHV diagrams in twistor space. We show that at MHV, this formulation leads directly to expressions for loop integrands in d log form; i.e., the integrand is a product of exterior derivatives of logarithms of rational functions. For higher MHV degree, it is in d log form multiplied by delta functions. The parameters appearing in the d log form arise geometrically as the coordinates of insertion points of propagators on the holomorphic Wilson loop or on MHV vertices. We discuss a number of examples at one and two loops and give a preliminary discussion of the evaluation of the 1-loop MHV amplitude.
description: v3. updated discussion of Kermit
Intrinsic Electrical Transport Properties of Monolayer Silicene and MoS2 from First Principles
Creators: name: Li, Xiaodong
name: Mullen, Jeffrey T.
name: Jin, Zhenghe
name: Borysenko, Kostyantyn M.
name: Nardelli, M. Buongiorno
name: Kim, Ki Wook
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electron-phonon interaction and related transport properties are investigated in monolayer silicene and MoS2 by using a density functional theory calculation combined with a full-band Monte Carlo analysis. In the case of silicene, the results illustrate that the out-of-plane acoustic phonon mode may play the dominant role unlike its close relative - graphene. The small energy of this phonon mode, originating from the weak sp2 bonding between Si atoms, contributes to the high scattering rate and significant degradation in electron transport. In MoS2, the longitudinal acoustic phonons show the strongest interaction with electrons. The key factor in this material appears to be the Q valleys located between the Γ and K points in the first Brillouin zone as they introduce additional intervalley scattering. The analysis also reveals the potential impact of extrinsic screening by other carriers and/or adjacent materials. Subsequent decrease in the actual scattering rate can be drastic, warranting careful consideration. Finally, the effective deformation potential constants are extracted for all relevant intrinsic electron-phonon scattering processes in both materials.
title: ASSOCIATION OF PERMANENT FORM OF ATRIAL FIBRILLATION WITH THE PARAMETERS OF STRUCTURAL REMODELING OF THE LEFT HEART IN PATIENTS WITH CHRONIC FORMS OF ISCHEMIC HEART DISEASE
Creators: name: Myasoedova, Ekaterina I.
name: Voronina, Lyudmila P.
name: Mukhambetova, Gul'naz N.
name: Polunina, O'lga S.
Publisher: name: Astrakhan State Medical University
Year: 2019

description: We have examined 65 patients with previous myocardial infarction and preserved ejection fraction of the left ventricle and 80 patients with ischemic cardiomyopathy with the aim of identifying and analyzing the relationship of a permanent form of atrial fibrillation with the parameters of the structural remodeling of the left heart and markers of collagen metabolism (volume fraction of the collagen of the myocardium, the level of matrix metalloproteinase-1and its inhibitor) in patients with chronic forms of ischemic heart disease. The control group included 30 somatically healthy individuals. The study in both groups revealed the association of the presence of a constant form of atrial fibrillation with the parameters of structural remodeling of the left heart and the levels of collagen metabolism markers, which opens up new targets for the prevention and treatment of atrial fibrillation in this category of patients. Key words: chronic forms of ischemic heart disease, atrial fibrillation, left heart remodeling, markers of collagen metabolism.
Ab-initio study on the possible doping strategies for MoS$_2$ monolayers
Creators: name: Dolui, Kapildeb
name: Rungger, Ivan
name: Pemmaraju, Chaitanya Das
name: Sanvito, Stefano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Density functional theory is used to systematically study the electronic and magnetic properties of doped MoS$_2$ monolayers, where the dopants are incorporated both via S/Mo substitution or as adsorbates. Among the possible substitutional dopants at the Mo site, Nb is identified as suitable p-type dopant, while Re is the donor with the lowest activation energy. When dopants are simply adsorbed on a monolayer we find that alkali metals shift the Fermi energy into the MoS$_2$ conduction band, making the system n-type. Finally, the adsorption of charged molecules is considered, mimicking an ionic liquid environment. We find that molecules adsorption can lead to both n- and p-type conductivity, depending on the charge polarity of the adsorbed species.
description: 9 Pages, 12 figures
Das Bildgedicht
Creators: name: Grimme-Welsch, Gisela
Publisher: name: Aachener Kunstblätter
Year: 2017

description: Rezension zu: Gisbert Kranz: Das Bildgedicht in Europa. Zur Theorie und Geschichte einer literarischen Gattung. Paderborn: Schöningh 1973. 235 S.
description: Aachener Kunstblätter, Bd. 47 (1976-1977): Aachener Kunstblätter
Discontinuous Shear Thickening of Frictional Hard-Sphere Suspensions
Creators: name: Seto, Ryohei
name: Mari, Romain
name: Morris, Jeffrey F.
name: Denn, Morton M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Discontinuous shear thickening (DST) observed in many dense athermal suspensions has proven difficult to understand and to reproduce by numerical simulation. By introducing a numerical scheme including both relevant hydrodynamic interactions and granularlike contacts, we show that contact friction is essential for having DST. Above a critical volume fraction, we observe the existence of two states: a low viscosity, contactless (hence, frictionless) state, and a high viscosity frictional shear jammed state. These two states are separated by a critical shear stress, associated with a critical shear rate where DST occurs. The shear jammed state is reminiscent of the jamming phase of granular matter. Continuous shear thickening is seen as a lower volume fraction vestige of the jamming transition.
description: 5 pages, 2 figures, to appear in Phys. Rev. Lett
title: First record of the formicine genus Overbeckia (Hymenoptera: Formicidae) from Australia
Creators: name: Heterick, Brian E.
Publisher: name: The Austrian Society of Entomofaunistics
Year: 2019

description: A collection of ants deeded to the Western Australian Museum by visiting amateur Raul Jordan included representatives of 10 subfamilies, 65 genera and 270 species. The ants were collected in 2002 in the Northern Territory, Queensland and Western Australia. Among the specimens were three workers of Overbeckia collected in Mossman, Queensland. This is an extremely rare arboreal genus known previously from only two collections in Singapore and the Philippines. The sole known species is Overbeckia subclavata VIEHMEYER, 1916. The Australian material is hairier but otherwise agrees exactly with syntype workers illustrated on AntWeb. The implications of this find are discussed. The alternatives include (i) a new species of Overbeckia possibly endemic to Australia, (ii) the extension of the known range of Overbeckia subclavata and (iii) the introduction to Australia of a hairy morph of O. subclavata by human agency. At present, insufficient material is available to enable this author to choose between these alternatives. The Jordan Collection also includes the first Australian records of Solenopsis papuana EMERY, 1900 and Cardiocondyla minutior FOREL, 1899. These three new records are of considerable significance, and the value of amateur collections and the importance of good taxonomy are discussed in this paper.
CONSORT flowchart for the study "A feasibility pilot randomised controlled study of the effects of neurostimulation on dysphagia recovery in Parkinson’s Disease".
Creators: name: Sasegbon, Ayodele
Publisher: name: University of Manchester
Year: 2021
Subjects: subject: 110321 Rehabilitation and Therapy (excl. Physiotherapy)
subject: FOS: Clinical medicine

description: CONSORT flowchart for study "A feasibility pilot randomised controlled study of the effects of neurostimulation on dysphagia recovery in Parkinson’s Disease". Sponsored by Parkinson's UK. Ethical approval was obtained from the Yorkshire & The Humber - Leeds East Research Ethics Committee (17/YH/0031) and the trial was registered on ClinicalTrials.gov (NCT03253354).
title: Perspectives of Digital Law: Visualization, Audiovisualization, and Multisensorization
Creators: name: Brunschwig, Colette R.
Publisher: name: forum historiae iuris
Year: 2019

description: Visual, audiovisual, and multisensory media are gaining increasing importance. The latter are hybrid media that appeal not only to sight and hearing, but also to other senses (e.g., smell, touch, and motion). Considering this media development, both the digital humanities and what might (as a working hypothesis) be called digital law explore visualization, audiovisualization, and multisensorization. These fields have so far largely gone separate ways, without influencing each other, although both face similar problems and questions in investigating visualization, audiovisualization, and multisensorization. This paper makes an innovative contribution to understanding these phenomena by bringing the digital humanities and digital law closer together. It also advances interdisciplinary understanding by considering the reflections voiced at the 2017 Centenary Conference of Zürich University Library and by going far beyond the topics of that conference.
High Precision {\it K}-Shell Photoabsorption Cross Sections for Atomic Oxygen: Experiment and Theory
Creators: name: McLaughlin, B. M.
name: Ballance, C. P.
name: Bowen, K. P.
name: Gardenghi, D. J.
name: Stolte, W. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Photoabsorption of atomic oxygen in the energy region below the $\rm 1s^{-1}$ threshold in x-ray spectroscopy from {\it Chandra} and {\it XMM-Newton} is observed in a variety of x-ray binary spectra. Photoabsorption cross sections determined from an R-matrix method with pseudo-states (RMPS) and new, high precision measurements from the Advanced Light Source (ALS) are presented. High-resolution spectroscopy with E/$Δ$E $\approx$ 4,250 $\pm$ 400 was obtained for photon energies from 520 eV to 555 eV at an energy resolution of 124 $\pm$ 12 meV FWHM. {\it K}-shell photoabsorption cross-section measurements were made with a re-analysis of previous experimental data on atomic oxygen at the ALS. Natural linewidths $Γ$ are extracted for the $\rm 1s^{-1}2s^22p^4 (^4P)np ^3P^{\circ}$ and $\rm 1s^{-1}2s^22p^4(^2P)np ~^3P^{\circ}$ Rydberg resonances series and compared with theoretical predictions. Accurate cross sections and linewidths are obtained for applications in x-ray astronomy. Excellent agreement between theory and the ALS measurements is shown which will have profound implications for the modelling of x-ray spectra and spectral diagnostics.
description: Accepted for publication in Ap J Letters; 4 figures and a table
Characteristics of magnetoacoustic sausage modes
Creators: name: Inglis, A. R.
name: Van Doorsselaere, T.
name: Brady, C. S.
name: Nakariakov, V. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims: We perform an advanced study of the fast magnetoacoustic sausage oscillations of coronal loops in the context of MHD coronal seismology to establish the dependence of the sausage mode period and cut-off wavenumber on the plasma-beta of the loop-filling plasma. A parametric study of the ratios for different harmonics of the mode is also carried out. Methods: Full magnetohydrodynamic numerical simulations were performed using Lare2d, simulating hot, dense loops in a magnetic slab environment. The symmetric Epstein profile and a simple step-function profile were both used to model the density structure of the simulated loops. Analytical expressions for the cut-off wavenumber and the harmonic ratio between the second longitudinal harmonic and the fundamental were also examined. Results: It was established that the period of the global sausage mode is only very weakly dependent on the value of the plasma-beta inside a coronal loop, which justifies the application of this model to hot flaring loops. The cut-off wavenumber kc for the global mode was found to be dependent on both internal and external values of the plasma-beta, again only weakly. By far the most important factor in this case was the value of the density contrast ratio between the loop and the surroundings. Finally, the deviation of the harmonic ratio P1/2P2 from the ideal non-dispersive case was shown to be considerable at low k, again strongly dependent on plasma density. Quantifying the behaviour of the cut-off wavenumber and the harmonic ratio has significant applications to the field of coronal seismology.
description: 8 pages, 8 figures
Analysis of the non-minimally coupled scalar field in the Palatini formalism by the Noether symmetry approach
Creators: name: de Souza, Rudinei C.
name: André, Raíla
name: Kremer, Gilberto M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyse a scalar field non-minimally coupled to gravity in the context of a Universe described by the flat Friedmann-Robertson-Walker (F-R-W) metric. The adopted model comprises a Universe filled by the scalar field and standard matter (dark and baryonic). The corresponding field equations are obtained through the Palatini formalism. From the action of the model in the flat F-R-W space-time, a point-like Lagrangian of first order is obtained and the Noether symmetry approach is applied to restrict the forms of the a priori undefined coupling and potential of the scalar field. We show that the massive scalar field is associated with a Noether symmetry of the model. Analytical cosmological solutions for this case are found and their respective importance for the description of the dark energy are discussed.
description: 5 pages
Is a rational explanation of wave-particle duality possible?
Creators: name: Rashkovskiy, S. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P05, 81P10, 81P15, 81P16

description: Wave-particle duality is one of the fundamental properties of matter and at the same time, one of the mysteries of modern physics. In this paper, we propose and analyze a new interpretation of the wave-particle duality, and propose a new rule that relates the corpuscular and wave properties of quantum particles, and replaces the Born's rule. We introduce a new representation about quantum particles as temporary objects that are born permanently in a wave field and spontaneously decayed due to their "instability". Thus, we fill with the physical meaning the standard notions of "creation" and "annihilation" of the particles, used in the second quantization formalism. We show that the traditional probabilistic interpretation of quantum mechanics in the form of the Born's rule is an approximate consequence of the proposed theory. The proposed theory allows explaining the indistinguishability of quantum particles and shows meaninglessness of the concept of their trajectories. We give an explanation of the Heisenberg uncertainty principle within the limits of this theory in terms of classical physics that allows us to return to an objective understanding of the measurement process and do not consider it as a compulsory part of the physical process.
description: 18 pages
Biogenic fluorescent protein–silk fibroin phosphors for high performing light-emitting diodes
Creators: name: Fernández-Luna, Verónica
name: Fernández-Blázquez, Juan P.
name: Monclús, Miguel A.
name: Rojo, Francisco Javier
name: Daza, Rafael
name: Sanchez-deAlcaza, Daniel
name: Cortajarena, Aitziber L.
name: Costa, Rubén D.
Publisher: name: Zenodo
Year: 2020

description: This work presents a new family of bio-hybrid light-emitting diodes (Bio-HLEDs) using all-bio color down-converting coatings that combine silk fibroin (SF) as a packaging matrix and fluorescent proteins (FPs) as emitters. The thermal, mechanical, optical, and luminescent features of the FP–SF bio-phosphors were optimized with respect to the blend composition and the FP stability under thermal and irradiation stress. Bio-HLEDs with FP–SF filters feature stabilities of 1.2 h and 500 h (200 mA) at efficiencies of ∼40 lm W−1 for on-chip and remote configurations, respectively. This is significantly superior to devices with FP–polymer bio-phosphors – i.e., 1.8 min (on-chip) and 300 h (remote) at <35 lm W−1. The excellence of the biogenic phosphors is attributed to (i) the ideal optical features of the SF films, (ii) the highly efficient emission of the FPs, and (iii) the high thermal- and photo-stabilities of FPs in the SF matrix. Finally, we revealed that the emission deactivation process of FP–SF phosphors is related to a very slow protonation of the ionic form of the FP chromophore along with large morphological changes due to thermal- and photo-induced FP motions. Overall, this work shows the promising prospects of fully biogenic phosphors en route to designing highly stable bio-based lighting devices.
Development of an analysis and testing concept for the evaluation of impact targets in the mechanical safety testing of dangerous goods packagings
Creators: name: Lengas, Nikolaos
name: Müller, Karsten
name: Schlick‐Hasper, Eva
name: Neitsch, Marcel
name: Johann, Sergej
name: Zehn, Manfred
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 380 Handel, Kommunikation, Verkehr
subject: corrugated fibreboard boxes
subject: dangerous goods packagings
subject: drop test
subject: impact target
subject: structural dynamics

description: The mechanical and geometrical properties of impact targets greatly influence the outcome of a drop test. The International Agreement concerning the International Carriage of Dangerous Goods by Road (ADR) as well as ISO 2248 describe the characteristics of impact targets for drop tests of dangerous goods packagings. According to these regulations, the impact target's surface needs to be unyielding, under testing conditions non‐deformable, flat and integral with a mass at least 50 times that of the heaviest packaging to be tested. The problem is that many production facilities, especially manufacturers of corrugated fibreboard boxes, do not have their own testing device with the required 50 times mass ratio of the impact target for a regulation compliant drop test during series production. Furthermore, at UN level, it is considered necessary to revise these requirements. In the present paper, the impact target requirements are examined in detail and compared with those in other technical areas (e.g., impact target for container for the transport of radioactive materials). A research method is being developed to investigate the dependency between the mass ratio of the packaging and the target as well as the damage resistance of a drop tested package in relation to specific design characteristics. The results are of high relevance for industry purposes and intended to ensure a uniform level of safety assessment for the mechanical testing of dangerous goods packagings.
A Tiltable Single-Shot Miniature Dilution Refrigerator for Astrophysical Applications
Creators: name: Melhuish, Simon J.
name: Martinis, Lorenzo
name: Piccirillo, Lucio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a 3He / 4He dilution refrigerator designed for cooling astronomical mm-wave telescope receivers to around 100 mK. Used in combination with a Gifford-McMahon closed-cycle refrigerator, 4He and 3He sorption-pumped refrigerators, our cryogen-free system is capable of achieving 2 microW cooling power at 87 mK. A receiver attached directly to the telescope optics is required to rotate with respect to the downward direction. This scenario, of variable tilt, has proved difficult for typical dilution refrigerators, but our design has a geometry chosen to allow tilt to 45 degrees and beyond.
description: 7 pages, 11 figures. Accepted by Cryogenics
First Issue of ASTRAL Newsletter
Creators: name: Ravagnan, Elisa
name: Kessler, Augustin
name: Vaillant, Rozenn Le
name: Carvajal, Juliana
name: Guterres, Bruna
name: Pias, Marcelo
name: Sanchez, Inma
name: James, Philip
name: Macleod, Adrian
name: Chalde, Tomás
name: Bolton, John J
name: Macey, Brett
name: O'Donohoe, Pauline
name: Casserly, Joanne
name: Poersch, Luis
name: Ferguson, Laura
Publisher: name: Zenodo
Year: 2021

description: This is the first issue of the ASTRAL project newsletter.
Dark plasmons in hot spot generation and polarization in interelectrode nanoscale junctions
Creators: name: Herzog, Joseph B.
name: Knight, Mark W.
name: Li, Yajing
name: Evans, Kenneth M.
name: Halas, Naomi J.
name: Natelson, Douglas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nanoscale gaps between adjacent metallic nanostructures give rise to extraordinarily large field enhancements, known as "hot spots", upon illumination. Incident light with the electric field polarized across the gap (along the interparticle axis) is generally known to induce the strongest surface enhanced Raman spectroscopy (SERS) enhancements. However, here we show that for a nanogap located within a nanowire linking extended Au electrodes, the greatest enhancement and resulting SERS emission occurs when the electric field of the incident light is polarized along the gap (transverse to the interelectrode axis). This surprising and counterintuitive polarization dependence results from a strong dipolar plasmon mode that resonates transversely across the nanowire, coupling with dark multipolar modes arising from subtle intrinsic asymmetries in the nanogap. These modes give rise to highly reproducible SERS enhancements at least an order of magnitude larger than the longitudinal modes in these structures.
description: 20 pages, 4 figures
Extension of von Neumann's uniqueness theorem to the theories with non-physical particles
Creators: name: Antipin, K. V.
name: Mnatsakanova, M. N.
name: Vernov, Yu. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Von Neumann's uniqueness theorem is extended to a special class of canonical commutation relations, namely the anti-Fock representations, which are realized on a Krein space.
description: 10 pages
Bound state in the continuum and spin filter in artificial molecules
Creators: name: Ramos, J. P.
name: Orellana, P. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper we study the formation of bound states in the continuum in a quantum dot molecule coupled to leads. Based in the combination of bound states in the continuum and Fano effect, we propose a new design of a spin-dependent polarizer. By lifting the spin degeneracy of the carriers in the quantum dots by means of a magnetic field the system can be used as a spin-polarized device. A detailed analysis of the spin-dependent conductance and spin polarization as a function of the applied magnetic field and gate voltages is carried out.
description: 6 pages, 8 figures and appendix
title: THE EXPERIENCE OF THE «SEMAX» MEDICINE IN THE THERAPY OF COGNITIVE IMPAIRMENT IN YOUNG PATIENTS WHO HAVE UNDERGONE REPEATED CLOSED CRANIOCEREBRAL INJURY
Creators: name: Sukhanov, Andrey V.
Publisher: name: Astrakhan State Medical University
Year: 2019

description: The effect of the “Semax” drug was studied in a randomly selected group that included 17 young men (38,3 ± 4,9 years old) with higher education having repeated closed head injuries in the anamnesis. The “Semax” medicine in a concentration of 0,1 % was used intranasally (2 drops into each nasal passage 3 times a day) for 4 weeks. The assessment of cognitive functions included doing a correction task, a test of Luria with memorization of 10 words, as well as a test of exclusion of concepts with recording the time of its execution. All participants had MRI of the brain, which did not reveal gross focal changes. The positive effect of the “Semax” medicine on the neurodynamic cognitive functions of the examined individuals is shown. Subjective improvement of well-being was noted in 15 surveyed, all patients having no side effects. The “Semax” medicine is suitable for the treatment of cognitive impairment in young people with repeated craniocerebral injuries and possible concomitant somatic comorbid pathology. Key words: “Semax” medicine, young men, repeated closed craniocerebral injury, cognitive functions, treatment of cognitive impairment.
title: THE VALUE OF THE INCREASED VOLUME FRACTION OF INTERSTITIAL COLLAGEN IN CHRONIC HEART FAILURE
Creators: name: Tarasochkina, Dariya S.
name: Voronina, Lyudmila P.
name: Polunina, Ekaterina A.
name: Myasoedova, Ekaterina I.
name: Polunina, O'lga S.
Publisher: name: Astrakhan State Medical University
Year: 2019

description: In our study, the volume fraction of interstitial collagen was analyzed in 345 patients with chronic heart failure, who were divided into groups depending on the left ventricular ejection fraction (preserved, mid-range and reduced) and the disease stage (I, IIA and IIB+III). The control group consisted of somatically healthy individuals. A statistically significant increase in the volume fraction of interstitial collagen was observed in all examined groups of patients compared to the control group. In patients with preserved left ventricular ejection fraction, the volume fraction of interstitial collagen was higher than in patients with mid-range and reduced left ventricular ejection fraction. It was found that the volume fraction of interstitial collagen increased in the groups of patients with a more severe stage of the disease in the group of patients with preserved, mid-range and reduced left ventricular ejection fraction. The findings suggest that the hyperproduction of interstitial collagen is an important pathogenetic factor in the development and progression of chronic heart failure. Key words: chronic heart failure, interstitial collagen volume fraction, ejection fraction.
One-loop four-point amplitudes in pure and matter-coupled N <= 4 supergravity
Creators: name: Carrasco, John Joseph M.
name: Chiodaroli, Marco
name: Gunaydin, Murat
name: Roiban, Radu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct all supergravity theories that can be obtained through factorized orbifold projections of N=8 supergravity, exposing their double-copy structure, and calculate their one-loop four-point scattering amplitudes. We observe a unified structure in both matter and gravity amplitudes, and demonstrate that the four-graviton amplitudes are insensitive to the precise nature of the matter couplings. We show that these amplitudes are identical for the two different realizations of N=4 supergravity with two vector multiplets, and argue that this feature extends to all multiplicities and loop orders as well as to higher dimensions. We also construct a selected set of supergravities obtained through a non-factorized orbifold action. Furthermore we calculate one-loop four-point amplitudes for all pure super-Yang-Mills theories with less-than-maximal supersymmetry using the duality between color and kinematics, finding here a unified expression that holds for all four gluon amplitudes in the theories. We recover the related amplitudes of factorized N<=4 supergravities employing the double-copy construction. We observe a requirement that the four-point loop-level amplitudes have non-local integrand representations, exhibiting a mild non-locality in the form of inverse powers of the three external Mandelstam invariants. These are the first loop-level color-kinematic-satisfying representations in reduced supersymmetry theories.
description: 41 pages, 3 figures, PDFLaTeX, section 3.2 expanded, version accepted for publication in JHEP
Exploring the Reasons for Labour Market Gender Inequality a Year into the Covid-19 Pandemic: Evidence from the UK Cohort Studies; Appendices
Creators: name: Wielgoszewska, Bozena
name: Bryson, Alex
name: Costa Dias, Monica
name: Foliano, Francesca
name: Joshi, Heather
name: Wilkinson, David
Publisher: name: figshare
Year: 2021
Subjects: subject: 140211 Labour Economics
subject: FOS: Economics and business

description: Appendices include additional information about the models described in the paper entitled: Exploring the Reasons for Labour Market Gender Inequality a Year into the Covid-19 Pandemic: Evidence from the UK Cohort Studies. These include: Appendix A: Distribution of outcomes across cohorts; Appendix B: Descriptive statistics of controls, Appendix C: Regression results by gender of the employment participation and furlough; Appendix D: Regression results by gender and household type; Appendix E: Regression results taking the partner’s job characteristic into consideration; Appendix F: Regression results taking the partner’s job characteristic and age of children into consideration; Appendix G: Distribution of men and women by occupation
title: CLINICAL VARIANTS OF HEPATOBILIARY SYSTEM DISORDERS IN THE NEWBORNS WITH INTRAUTERINE INFECTIONS AND SEPSIS
Creators: name: Kirilochev, Oleg K.
name: Zhidovinov, Aleksey A.
name: Dorfman, Inna P.
name: Eyberman, Aleksandr S.
name: Panin, Stanislav I.
Publisher: name: Astrakhan State Medical University
Year: 2019

description: Clinical variants of the hepatobiliary system disorders in newborns were studied depending on the etiology of the disease. We observed 41 newborns with intrauterine infections and bacterial sepsis. Against the background of these diseases, clinical diagnostic criteria for liver damage were revealed. A longitudinal (prospective) study of patients with hepatobiliary problems was performed with case follow-up during the entire period of the disease. The etiological characteristic of intrauterine infections and sepsis is given. Basing on clinical, laboratory and instrumental symptoms, it was established that in cases of liver damage as a result of intrauterine infections, hepatobiliary injuries are more often reversible due to the prevalence of degenerative processes without significant hepatocyte necrosis. Therefore, the majority of patients with intrauterine infection on the background of adequate etiological and pathogenetic therapy had a favorable outcome. In bacterial sepsis, newborns most often developed hepatic failure with a fatal outcome in 58 % of cases. Patients were diagnosed with impaired partial functions of the hepatobiliary system as a result of hepatocyte necrosis. A close statistical relationship was established between the hemorrhagic syndrome, with an increase in the activated partial thromboplastin time, prothrombin time, thrombin time rates with respect to bacterial sepsis. Laboratory and instrumental indicators – an increase in the level of alanine aminotransferase and aspartate aminotransferase, decrease in prothrombin index, hypoproteinemia, visualization of the vascular system of the liver, increased density of the parenchyma according to the ultrasound data were in moderate correlation with bacterial sepsis. Key words: newborn children, intrauterine infection, sepsis, hepatobiliary pathology, liver.
LTSER Koiliaris CZO, Greece, Discharge Data
Creators: name: Efstathiou, Dionissis
name: Nikolaidis, Nikolaos
Publisher: name: https://b2share.eudat.eu
Year: 2021
Subjects: 3.3.13 → Earth sciences → Hydrology
stream discharge
streamflow

description: This dataset contains hourly water discharge data from Koiliaris river. Discharge was calculated from automatically recorded water level data at TUC-KRB-AGIORGIS Hydrological Water Quality Station located at the junction of Stylos Karst Springs and Keramianos.