cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A hybrid approach to excited-state-specific variational Monte Carlo and doubly excited states
Creators: name: Otis, Leon
name: Craig, Isaac M.
name: Neuscamman, Eric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We extend our hybrid linear-method/accelerated-descent variational Monte Carlo optimization approach to excited states and investigate its efficacy in double excitations. In addition to showing a superior statistical efficiency when compared to the linear method, our tests on the carbon dimer and cyclopentadiene show good energetic agreement with benchmark methods and experiment, respectively. We also demonstrate the ability to treat double excitations in systems that are too large for a full treatment by selective configuration interaction methods via an application to 4-aminobenzonitrile. Finally, we investigate the stability of state-specific variance optimization against collapse to other states' variance minima and find that symmetry, ansatz quality, and sample size all have roles to play in achieving stability.
description: 44 pages, 9 figures, 7 tables plus supplementary material, accepted by The Journal of Chemical Physics
Zero field Wigner crystal
Creators: name: Chitra, R.
name: Giamarchi, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A candidate for the insulating phase of the 2D electron gas, seen in high mobility 2D MOSFETS and heterojunctions, is a Wigner crystal pinned by the incipient disorder. With this in view, we study the effect of collective pinning on the physical properties of the crystal formed in zero external magnetic field. We use an elastic theory to describe to long wavelength modes of the crystal. The disorder is treated using the standard Gaussian variational method. We calculate various physical properties of the system with particular emphasis on their density dependence. We revisit the problem of compressibility in this system and present results for the compressibility obtained via effective capacitance measurements in experiments using bilayers. We present results for the dynamical conductivity, surface acoustic wave anomalies and the power radiated by the crystal through phonon emission at finite temperatures.
description: 14 pages, 4 figures
Stemonitis flavogenita E. Jahn 1904
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Stemonitales
Stemonitidaceae
Stemonitis
Stemonitis flavogenita

description: Stemonitis flavogenita E. Jahn (1 FC, 1 loc)
 Loc. 37m La Digue: On dead wood, bark and leaves, AM2876, TK2402.
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 241, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
البعد الاجتماعى والاقتصادى فى تنمية قطاع البروتين الحيواني : الوضع الراهن والرؤية المستقبلية
Creators: name: Soliman, Ibrahim
name: Soliman, Ibrahim
Publisher: name: Unknown
Year: 2001
Subjects: subject: Livestock Production/Industries
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: Social and economic dimension in the animal protein sector development: the current situation and the future vision
subject: the animal protein sector

description: Seminar "The role of animal protein in achieving food security", organized by the Faculty of Agriculture, Zagazig University in collaboration with the Secretariat of the CFS National Democratic Party, Cairo March 17, 2001
Neutron stars with isovector scalar correlations
Creators: name: Liu, B.
name: Guo, H.
name: Di Toro, M.
name: Greco, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutron stars with the isovector scalar $δ$-field are studied in the framework of the relativistic mean field ($RMF$) approach in a pure nucleon plus lepton scheme. The $δ$-field leads to a larger repulsion in dense neutron-rich matter and to a definite splitting of proton and neutron effective masses. Both features are influencing the stability conditions of the neutron stars. Two parametrizations for the effective nonlinear Lagrangian density are used to calculate the nuclear equation of state ($EOS$) and the neutron star properties, and compared to correlated Dirac-Brueckner results. We conclude that in order to reproduce reasonable nuclear structure and neutron star properties within a $RMF$ approach a density dependence of the coupling constants is required.
description: 11 pages, 5 figures, revtex4 style
Stemonitis fusca var. fusca Roth
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Stemonitales
Stemonitidaceae
Stemonitis
Stemonitis fusca
Stemonitis fusca var. fusca roth

description: Stemonitis fusca var. fusca Roth (9 FC, 7 loc, 3 ps, Fig. 6D)
 Loc. 24 Praslin: On wood and mossy bark of rotten log of Calophyllum inophyllum, AM2776, TK2191. Loc. 25b Praslin: On wood of rotten log of Terminalia catappa, AM2791, TK2217. Loc.27b La Digue: On wood of rotten log of Calophyllum inophyllum, AM 3170, TK2644. Loc. 36 La Digue: On wood of fallen branch of Terminalia catappa, AM 3216, TK2784 (2FC). Loc. 37n La Digue: On wood and bark of rotten mossy branch of Falcataria moluccana, AM2988, TK2577 (2FC). Loc. 40c La Digue: On wood under bark of rotten log of Calophyllum inophyllum, AM2920, TK2464. Loc. 43 La Digue: On wood and bark of large standing dead mossy tree Calophyllum inophyllum, AM2937, TK2507.
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 241, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
Defect filtering for thermal expansion induced dislocations in III-V lasers on silicon
Creators: name: Selvidge, Jennifer
name: Norman, Justin
name: Hughes, Eamonn T.
name: Shang, Chen
name: Jung, Daehwan
name: Taylor, Aidan A.
name: Kennedy, MJ
name: Herrick, Robert
name: Bowers, John E.
name: Mukherjee, Kunal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Epitaxially integrated III-V semiconductor lasers for silicon photonics have the potential to dramatically transform information networks, but currently, dislocations limit performance and reliability even in defect tolerant InAs quantum dot (QD) based lasers. Despite being below critical thickness, QD layers in these devices contain previously unexplained misfit dislocations, which facilitate non-radiative recombination. We demonstrate here that these misfit dislocations form during post-growth cooldown due to the combined effects of (1) thermal-expansion mismatch between the III-V layers and silicon and (2) precipitate and alloy hardening in the active region. By incorporating an additional sub-critical thickness, indium-alloyed misfit dislocation trapping layer, we leverage these mechanical hardening effects to our advantage, successfully displacing 95% of misfit dislocations from the QD layer in model structures. Unlike conventional dislocation mitigation strategies, the trapping layer reduces neither the number of threading dislocations nor the number of misfit dislocations. It simply shifts the position of misfit dislocations away from the QD layer, reducing the defects' impact on luminescence. In full lasers, adding a misfit dislocation trapping layer both above and below the QD active region displaces misfit dislocations and substantially improves performance: we measure a twofold reduction in lasing threshold currents and a greater than threefold increase in output power. Our results suggest that devices employing both traditional threading dislocation reduction techniques and optimized misfit dislocation trapping layers may finally lead to fully integrated, commercially viable silicon-based photonic integrated circuits.
description: 9 pages, 6 figures
السياسات التمويلية فى مجال الانتاج الحيوانى بالاشارة الى محافظة الشرقية
Creators: name: Soliman, Ibrahim
name: El Nagar, Refaat
name: Soliman, Ibrahim
name: El Nagar, Refaat
Publisher: name: Unknown
Year: 1981
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Financial Economics
subject: Livestock Production/Industries
subject: Production Economics
subject: Public Economics
subject: Financing policies in the field of Animal Production reference to Sharkia Governorate
subject: Sharkia Governorate
subject: Financing policies
subject: Animal Production
subject: FOS: Animal and dairy science

description: Research Bulletin No. 221, Faculty of Agriculture, Zagazig University, January 1981
Insilico analysis of marine indole alkaloids for design of adenosine A2A receptor antagonist
Creators: name: Nitin Lonikar
name: Prafulla Choudhari
name: Omprakash Bhusnuare
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Marine Biology
subject: Cancer

description: Neurological disease is the disease associated with most of geriatric population in the world. The diseases like Alzheimer’s disease and Parkinson’s disease are associated with the change in the life style in current era. Treatment of these diseases normally focused on the agents which can able to manipulate the neurotransmitter release, so it is associated with severe side effects. Adenosine receptors are the upcoming targets for the inflammatory as well as neurological diseases as agents like istradefylline are in the clinical use. Marine natural products are the rich source of the valuable drug like substances, number marine alkaloids are known for their ability to pass blood brain barrier (BBB) which is major hurdle in the neurological drug discovery. Here, we report the virtual screening of some marine alkaloids for adenosine 2 receptor binding potential. Results indicated topsentin C, 6′-debromohamacanthin, 6-hydroxydiscodermindole and discodermindole are having excellent binding affinity towards the adenosine 2A receptor than other selected alkaloids. Communicated by Ramaswamy H. Sarma
Transformation transformed : the ’War on Terror’ and the modernisation of the British military
Creators: name: Lyon, Samuel
Publisher: name: University of British Columbia
Year: 2010

description: This thesis assesses the transformation of the British Military from the mid-1990s up until the current day. It addresses how the end of the Cold War brought a change in what was demanded of the British Armed Forces, and that since then, those Forces have adapted to that changed demand, altering their structure, tactics and equipment in order to deal with these new tasks and to exploit technological changes. Yet, as this thesis explores, transformation has not proceeded at a uniform pace, with the British experiencing several stages of transformative progress, and some of regress. Starting with the Strategic Defence Review of 1998, this thesis traces the overall picture of transformation in the United Kingdom, looking at how it is managed, why it occurred, and where it is going. In particular though, it focuses on the stops and starts in the transformative process, and connects these primarily to the consequences of the Blair Government’s most important decision of all its time in power - being America’s closest ally after the terror attacks of September 11th 2001. Following these commitments, Britain committed to an even greater transformation of its military, set out in the Strategic Defence Review: A New Chapter in 2002. The involvement of British troops in Afghanistan and Iraq, as the closest and most significant allies of the United States, drove transformation through co-operation with the much more transformed American Forces, and also had the support of greatly increased funding from the Treasury, enabling leaps in equipment technology. Those same commitments have placed a strain on transformation, however, as the requirement on troops has become that of occupation, rather than advanced warfighting. Thus we see the tale of transformation as one greatly impacted by Britain’s involvement in the American-led ’War on Terror’.
A microscopic approach to critical phenomena at interfaces: an application to complete wetting in the Ising model
Creators: name: Orlandi, Alberto
name: Parola, Alberto
name: Reatto, Luciano
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study how the formalism of the Hierarchical Reference Theory (HRT) can be extended to inhomogeneous systems. HRT is a liquid state theory which implements the basic ideas of Wilson momentum shell renormalization group (RG) to microscopic Hamiltonians. In the case of homogeneous systems, HRT provides accurate results even in the critical region, where it reproduces scaling and non-classical critical exponents. We applied the HRT to study wetting critical phenomena in a planar geometry. Our formalism avoids the explicit definition of effective surface Hamiltonians but leads, close to the wetting transition, to the same renormalization group equation already studied by RG techiques. However, HRT also provides information on the non universal quantities because it does not require any preliminary coarse graining procedure. A simple approximation to the infinite HRT set of equations is discussed. The HRT evolution equation for the surface free energy is numerically integrated in a semi-infinite three-dimensional Ising model and the complete wetting phase transition is analyzed. A renormalization of the adsorption critical amplitude and of the wetting parameter is observed. Our results are compared to available Monte Carlo simulations.
description: To be published in Phy. Rev. E
title: Large-scale control of nitrogen-vacancy quantum bit arrays in diamond
Creators: name: Leitner, Johannes
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Quantum Information
subject: Quantum technology

description: During the last ten years, basic quantum operations on a single electronic spin in the nitrogen-vacancy centre (NV) in diamond have been a rich field of study. These defects have become promising candidates as robust, long-lived qubits. However, in order to realize quantum computers with the help of these qubits one has to find a way to create and control a system of many qubits. One promising way will be introduced in this thesis. Using a wire grid, which is directly produced on the diamond sample, in combination with a STIRAP-inspired (stimulated Raman adiabatic passage) transition gives access to manipulate a specific NV within a large number of other NVs. The reason is that STIRAP requires two photons in order to perform the transfer, which is utilized with the wire grid. By sending one microwave pulse through a horizontal wire and the second pulse through a vertical wire, the condition for STIRAP is only fulfilled at the junction of both. Furthermore, introducing a detuning of these pulses is not only necessary to truly perform a STIRAP-inspired (two-tone) transition but also reduces the effects of the microwave signals at other crossings. The first part of this thesis describes the basic physics of the NV and discusses STIRAP. After explaining the experimental setup the implementation of the two-tone pulses is demonstrated. The second part is dedicated to the usage of the wire grid. First, the performance of the wire grid is anticipated by using a single wire with a single NV, as single wire measurements are easier to control and better understood. The dependence on the microwave power of the two-tone efficiency is obtained and a comparison to the dependence on the distance is made. Additionally, the time-behaviour of the two-tone transfer is observed depending on the detuning of the two-tone pulses. After getting a good estimate of the performance of the wire grid the grid itself is implemented in the experimental setup. Measurements confirm the expected performance and the possibility to address a single site without affecting any other sites. Finally, a way to cancel out any unintended effects at neighbouring crossings is demonstrated in order to show that the wire grid can be built smaller while maintaining high performance qubit control.
Exciting Prospects for Detecting Late-Time Neutrinos from Core-Collapse Supernovae
Creators: name: Li, Shirley Weishi
name: Roberts, Luke F.
name: Beacom, John F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The importance of detecting neutrinos from a Milky Way core-collapse supernova is well known. An under-studied phase is proto-neutron star cooling. For SN 1987A, this seemingly began at about 2 s, and is thus probed by only 6 of the 19 events (and only the $\barν_e$ flavor) in the Kamiokande-II and IMB detectors. With the higher statistics expected for present and near-future detectors, it should be possible to measure detailed neutrino signals out to very late times. We present the first comprehensive study of neutrino detection during the proto-neutron star cooling phase, considering a variety of outcomes, using all flavors, and employing detailed detector physics. For our nominal model, the event yields (at 10 kpc) after 10 s -- the approximate duration of the SN 1987A signal -- far exceed the entire SN 1987A yield, with $\simeq$250 $\barν_e$ events (to 50 s) in Super-Kamiokande, $\simeq$110 $ν_e$ events (to 40 s) in DUNE, and $\simeq$10 $ν_μ, ν_τ, \barν_μ, \barν_τ$ events (to 20 s) in JUNO. These data would allow unprecedented probes of the proto-neutron star, including the onset of neutrino transparency and hence its transition to a neutron star. If a black hole forms, even at very late times, this can be clearly identified. But will the detectors fulfill their potential for this perhaps once-ever opportunity for an all-flavor, high-statistics detection of a core collapse? Maybe. Further work is urgently needed, especially for DUNE to thoroughly investigate and improve its MeV capabilities.
description: 25 pages, 11 figures; minor updates to match the published version
Stemonitis fusca var. nigrescens Torrend 1908
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Stemonitales
Stemonitidaceae
Stemonitis
Stemonitis fusca
Stemonitis fusca var. nigrescens (rex) torrend

description: * Stemonitis fusca var. nigrescens (Rex) Torrend (10 MC, 6 loc, 6 ps)
 Loc. 8 Mahé: On dry stems of living liana Dioscorea sp., SLS 32379 (MC pH 6.7). Loc. 11 Praslin: On fallen branch with dry leaves and red fruits of Adenanthera pavonina, SLS (MC pH 5.2). Loc. 14a Praslin: On dry leaves of grass, SLS 32494 (MC pH 5.5). Loc. 18 Praslin: On fallen old dry inflorescences of palm Lodoicea maldivica, SLS 32490 (MC pH 5.5), SLS 32494 (MC pH 5.4). Loc. 37c La Digue: On dry leaves attachet to tree Cinnamomum verum, SLS 32333 (MC pH 4.6), SLS 32338 (MC pH 4.6). On bark of living tree Cinnamomum verum, SLS 32377 (MC pH 5.2). Loc. 47a Curieuse: On dry leaves attachet to palm Phoenicophorium borsigianum, SLS (MC pH 4.9), SLS (MC pH 4.7).
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 241, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
Two new anticancer phenolic derivatives from leaves of Piper betle Linn.
Creators: name: Atiya, Akhtar
name: Salim, Mohammed Azhar
name: Barij Nayan Sinha
name: Lal, Uma Ranjan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Plant Biology
subject: FOS: Biological sciences
subject: 60506 Virology

description: In this study, phytochemical analyses of the chloroform extract of Piper betle L. var. haldia and maghai, Piperaceae, leaves led to the isolation of two new phenolic derivatives: 1-n-decanoyl hydroxy-benzoic acid/1-n-decanoyl phenol (H2) and 3-butylphenol (M1) on the basis of spectroscopic data 1D NMR (1H, 13C) and 2D NMR (1H - 1H COSY, HMBC) as well as ESI-MS, FT-IR and HR-ESI-MS analyses. Compounds H2 and M1 showed excellent antioxidant DPPH free radical scavenging activity with IC50 values of 10.66 μ/mL and 13.65 μg/mL compared to ascorbic acid as a standard antioxidant with an IC50 value of 2.52 μg/mL. Evaluation of cytotoxic activity against two human oral cancer cell lines (SCC-40 and SCC-29B) showed significant effect with GI50 values of 24.08 and 33.08 μg/mL for compound H2 and 35.03 and 47.06 μg/mL for compound M1, compared to Doxorubicin® as a standard cytotoxic drug with GI50 value of < 10 μg/mL.
A counterexample to a conjecture on linear systems on P^3
Creators: name: Laface, Antonio
name: Ugaglia, Luca
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C20

description: In this note we give a counterexample to a conjecture proposed by Ciliberto about special linear systems of P^n through multiple base points.
description: 6 pages, LaTeX
title: 01_2084
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
تقدير قياسى لنموذج توازن السوق لكل من لحوم الدواجن واللحوم الحمراء واختبار اثار تطبيق تحرير التجارة
Creators: name: Soliman, Ibrahim
name: Soliman, Ibrahim
Publisher: name: Unknown
Year: 1997
Subjects: subject: International Relations/Trade
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Public Economics
subject: Estimate measurement model for each of the balance of the market for poultry meat and red meat and test the effects of the application of trade liberalization
subject: market for poultry meat and red meat
subject: red meat

description: Journal of contemporary Egypt, number 448, Year 88, October, 1997, published by the Egyptian Society of political economy, statistics and legislation, Cairo, Egypt.
Full-sky photon simulation of clusters and active galactic nuclei in the soft X-rays for eROSITA
Creators: name: Comparat, Johan
name: Eckert, Dominique
name: Finoguenov, Alexis
name: Schmidt, Robert
name: Sanders, Jeremy
name: Nagai, Daisuke
name: Lau, Erwin T.
name: Kaefer, Florian
name: Pacaud, Florian
name: Clerc, Nicolas
name: Reiprich, Thomas H.
name: Bulbul, Esra
name: Chitham, Jacob Ider
name: Chuang, Chia-Hsun
name: Ghirardini, Vittorio
name: Gonzalez-Perez, Violeta
name: Gozaliazl, Ghassem
name: Kirkpatrick, Charles C.
name: Klypin, Anatoly
name: Merloni, Andrea
name: Nandra, Kirpal
name: Liu, Teng
name: Prada, Francisco
name: Ramos-Ceja, Miriam E.
name: Salvato, Mara
name: Seppi, Riccardo
name: Tempel, Elmo
name: Yepes, Gustavo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The eROSITA X-ray telescope on board the Spectrum-Roentgen-Gamma (SRG) mission will measure the position and properties of about 100,000 clusters of galaxies and 3 million active galactic nuclei over the full sky. To study the statistical properties of this ongoing survey, it is key to estimate the selection function accurately. We create a set of full sky light-cones using the MultiDark and UNIT dark matter only N-body simulations. We present a novel method to predict the X-ray emission of galaxy clusters. Given a set of dark matter halo properties (mass, redshift, ellipticity, offset parameter), we construct an X-ray emissivity profile and image for each halo in the light-cone. We follow the eROSITA scanning strategy to produce a list of X-ray photons on the full sky. We predict scaling relations for the model clusters, which are in good agreement with the literature. The predicted number density of clusters as a function of flux also agrees with previous measurements. Finally, we obtain a scatter of 0.21 (0.07, 0.25) for the X-ray luminosity -- mass (temperature -- mass, luminosity -- temperature) model scaling relations. We provide catalogues with the model photons emitted by clusters and active galactic nuclei. These catalogues will aid the eROSITA end to end simulation flow analysis and in particular the source detection process and cataloguing methods.
description: 15 pages, 11 figures, accepted in the open journal of astrophysics
Low-noise octave-spanning mid-infrared supercontinuum generation in a multimode chalcogenide fiber
Creators: name: Eslami, Zahra
name: Ryczkowski, Piotr
name: Salmela, Lauri
name: Genty, Goëry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the generation of a low-noise, octave-spanning mid-infrared supercontinuum from 1700 to 4800 nm by injecting femtosecond pulses into the normal dispersion regime of a multimode step-index chalcogenide fiber with 100 $μ$m core diameter. We conduct a systematic study of the intensity noise across the supercontinuum spectrum and show that the initial fluctuations of the pump laser are at most amplified by a factor of three. We also perform a comparison with the noise characteristics of an octave-spanning supercontinuum generated in the anomalous dispersion regime of a multimode fluoride fiber with similar core size and show that the all-normal dispersion supercontinuum in the multimode chalcogenide fiber has superior noise characteristics. Our results open up novel perspective for many practical applications such as long-distance remote sensing where high power and low noise are paramount.
description: (7 pages,6 figures)
Signature of Electron Capture in Iron-Rich Ejecta of SN 2003du
Creators: name: Hoeflich, Peter
name: Gerardy, Christopher L.
name: Nomoto, Kenichi
name: Motohara, Kentaro
name: Fesen, Robert A.
name: Maeda, Keiichi
name: Ohkubo, Takuya
name: Tominaga, Nozomu
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Late-time near-infrared and optical spectra are presented for the normal-bright SN2003du. At about 300 days after the explosion, the emission profiles of well isolated [FeII] lines (in particular that of the strong 1.644mu feature) trace out the global kinematic distribution of radioactive material in the expanding. In SN2003du, the 1.644 mu [FeII] line shows a flat-topped, profile, indicative of a thick but hollow-centered expanding shell, rather than a strongly-peaked profile that would be expected from a ``center-filled'' distribution.Based on detailed models for exploding Chandrasekhar mass white dwarfs, we show that the feature is consistent with spherical explosion models.Our model predicts central region of non-radioactive electron-capture elements up to 2500--3000km/s as a consequence of burning under high density, and an extended region of 56Ni up to 9,000--10,000km/s. Furthermore our analysis indicates that the 1.644mu [FeII] profile is not consistent with strong mixing between the regions of electron- capture isotopes and the 56Ni layers as is predicted by detailed 3D models for nuclear deflagration fronts. We discuss the possibility that the flat-topped profile could be produced as a result of an infrared catastrophe and conclude that such an explanation is unlikely. We put our results in context to other SNeIa and briefly discuss the implications of our result for the use of SNe Ia as cosmological standard candles.
description: 12 pages + 8 figures, ApJ (in press, Dec. 20, 2004) For high resolution figures send E-mail to pah@hej1.as.utexas.edu
Persistent currents with long-range hopping in 1D single-isolated-diffusive rings
Creators: name: Maiti, Santanu K.
name: Chowdhury, J.
name: Karmakar, S. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show from exact calculations that a simple tight-binding Hamiltonian with diagonal disorder and long-range hopping integrals, falling off as a power $μ$ of the inter-site separation, correctly describes the experimentally observed amplitude (close to the value of an ordered ring) and flux-periodicity ($hc/e$) of persistent currents in single-isolated-diffusive normal metal rings of mesoscopic size. Long-range hopping integrals tend to delocalize the electrons even in the presence of disorder resulting orders of magnitude enhancement of persistent current relative to earliar predictions.
description: 4 pages, 3 figures
Heat Semigroups on Weyl Algebra
Creators: name: Avramidi, Ivan G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the algebra of semigroups of Laplacians on the Weyl algebra. We consider first-order partial differential operators $\nabla^\pm_i$ forming the Lie algebra $[\nabla^\pm_j,\nabla^\pm_k]= i\mathcal{R}^\pm_{jk}$ and $[\nabla^+_j,\nabla^-_k] =i\frac{1}{2}(\mathcal{R}^+_{jk}+\mathcal{R}^-_{jk})$ with some anti-symmetric matrices $\mathcal{R}^\pm_{ij}$ and define the corresponding Laplacians $Δ_\pm=g_\pm^{ij}\nabla^\pm_i\nabla^\pm_j$ with some positive matrices $g_\pm^{ij}$. We show that the heat semigroups $\exp(tΔ_\pm)$ can be represented as a Gaussian average of the operators $\exp\left$ and use these representations to compute the product of the semigroups, $\exp(tΔ_+)\exp(sΔ_-)$ and the corresponding heat kernel.
description: 42 pages; version accepted in J. Geom. Phys
OCENA PORÓWNAWCZA POLSKIEGO PRZEMYSŁU MIĘSNEGO NA TLE WYBRANYCH KRAJÓW UNII EUROPEJSKIEJ
Creators: name: Tereszczuk, Mirosława
name: Tereszczuk, Mirosława
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: meat industry
subject: sold production of the meat industry
subject: Poland
subject: the European Union

description: The aim of the study was to present the position of the Polish meat industry in the period of 2003-2013 compared to selected EU countries, especially those that are major producers of meat and meat products in the European Union. The meat industry is one of the largest sectors of the food industry in Poland. The share of Poland in the EU’s meat industry production (in comparable prices) is 10.8%, which gives us the fifth position among the EU-28. The largest meat producers in the EU were: Germany (19.9%), France (12.3%), Spain (11.3%) and Italy (10.8%). Integration with the European Union positively influenced the development of the meat industry in Poland and improved labor productivity. Polish meat processing enterprises are now considered as one of the most modern in the EU, Polish meat industry has emerged as a formidable producer of meat and meat products in the European Union. Improving labor productivity and increasing the value of turnover of undertakings in the Polish meat industry helped to reduce the gap separating us from the most developed EU countries and thus strengthening our competitive position on the Single European Market.
«BASPA SÓZDE KÓRKEM AWDARMANÍŃ METODLARI»
Creators: name: Xojanazarova, Nargiza
Publisher: name: Zenodo
Year: 2024

description: Qaraqalpaq til biliminde, ádebiyattanıw iliminde, qaraqalpaq jurnalistikasında usı waqıtqa deyin awdarma máselesi – kórkem awdarma teoriyası arnawlı úyrenilmedi. Awdarmanıń jurnalstika ushın qanday áhmiyeti bar, onıń tutqan ornı qanday degen sorawlarǵa juwap taba aldıq. Awdarma eki til obyektin bir biri menen baylanıstıratuǵın qural ekenligin tastıylay aldıq. Aadarma arqalı jańa kóz qaraslar, rawajlanıwlar payda bolatuǵınlıǵın ilimiy kóz qarastan dáliyllew múmkinshiligine iyemiz. Biz múmkinshiliklerimizden kelip shıģıp, izertlew barısında qaraqalpaqstan baspasózinde kórkem awdarma máselelerin onıń metodların ashıp beriwge umtıldıq. Ortaģa taslanģan problemanı izertlewdiń ilimiy metodları sıpatında ulıwmalıq ilimiy, salıstırmalı analiz metodları qollanıldı, jıynalģan faktler hám materiallar boyınsha teoriyalıq juwmaqlar shıģarıldı
Meteor light curves: the relevant parameters
Creators: name: Brosch, N.
name: Helled, Ravit
name: Polishook, D.
name: Almoznino, E.
name: David, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate a uniform sample of 113 light curves (LCs) of meteors collected at the Wise Observatory in November 2002 while observing the Leonid meteor shower. We use previously defined descriptors such as the skewness F and a recently defined pointedness parameter along with a number of other measurable or derived quantities to explore the parameter space in search of meaningful LC descriptors. We make extensive use of statistical techniques to reveal links among the variables and to understand their relative importance. In particular, we show that meteors with long-duration trails rise slowly to their maximal brightness and also decay slowly from there while showing milder flaring than other meteors. Early skewed LCs show a fast rise to the peak. We show that the duration of te luminous phase of the meteor is th emost important variable differentiating among the 2002 LCs. The skewness parameter F appears only as the 2nd or 3rd in explaining the LC variance. We suggest that the pointedness parameter P could possibly be useful to discriminate among meteors from different showers, or to compare observations and model predictions.
description: 10 pages (2 figures) in press with MNRAS
Anti-inflammatory ergosterol derivatives from the endophytic fungus Fusarium chlamydosporum
Creators: name: Al-Rabia, Mohammed Wanees
name: Mohamed, Gamal Abdallah
name: Sabrin Ragab Mohamed Ibrahim
name: Asfour, Hani Zakaria
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Two new ergosterol derivatives namely, chlamydosterols A [(22E,24R)-ergosta-7,22-diene-3β,5α,6β-triol 6-decanoate] (1) and B [5α,6β,25-trihydroxy-(22E,24R)-ergosta-7,22-dien-3-one] (5) and three known ergosterols: ergosta-7,22-dien-3β-ol (2), ergosta-5,7,22-triene-3β-ol (3), and ergosta-7,22-diene-3β,5α,6β-triol (4) were separated from the EtOAc extract of the endophytic fungus Fusarium chlamydosporum isolated from Anvillea garcinii (Asteraceae) leaves growing in Saudi Arabia. Their structural assignment was accomplished by various spectroscopic analyses, as well as comparing with the published data. The 5-lipoxygenase (5-LOX) inhibitory potential of the isolated metabolites was assessed. Compounds 1 and 3 displayed moderate 5-LOX inhibitory potential with IC50s 3.06 and 3.57 µM, respectively compared to indomethacin (IC50 1.13 µM).
The common origin of the family mass hierarchy and CP violation from flavour-dependent vacuum for quarks and leptons
Creators: name: Zhang, Ying
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We rewrite the Yukawa interactions of the standard model in terms of flavour-dependent vacuum structure to address the family mass hierarchy and CP violation in both the quark sector and lepton sector. It is realized for the first time that the Lagrangian only includes the same number of degrees of freedom as phenomenological observables with no requirement of extra particles or any new symmetry. The quark and lepton mass hierarchy arises as a natural result of the close-to-flat vacuum in flavour space. The CP violation in CKM and PMNS is explained as a general quantum phase between weak gauge eigenstates and Yukawa interaction states. The mechanism is proven by reproduction of all current quark/lepton mass data and the CKM/PMNS flavour mixings.
description: 10 pages, 2 figures and 2 tables
Insilico Analysis of Marine Indole Alkaloids for Design of Adenosine A2A Receptor Antagonist
Creators: name: Nitin Lonikar
name: Prafulla Choudhari
name: Omprakash Bhusnuare
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Marine Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Neurological disease are the disease associated with most of geriatric population in the world. The diseases like Alzheimer’s disease and Parkinson’s disease are associated with the change in the life style in current era. Treatment of these diseases normally focused on the agents which can able to manipulate the neurotransmitter release, so it is associated with severe side effects. Adenosine receptor are the upcoming targets for the inflammatory as well as neurological diseases as agents like istradefylline are in the clinical use. Marine natural products are the rich source of the valuable drug like substances, number marine alkaloids are known for their ability to pass blood brain barrier (BBB) which is major hurdle in the neurological drug discovery. Here we report the virtual screening of some marine alkaloids for adenosine 2 receptor antagonist potential. Results indicated topsentin C, 6'-debromohamacanthin, 6-hydroxydiscodermindole and discodermindole are having excellent binding affinity towards the adenosine 2 receptor than other selected alkaloids.
Stemonitis herbatica Peck
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Stemonitales
Stemonitidaceae
Stemonitis
Stemonitis herbatica

description: Stemonitis herbatica Peck (1 MC, 1 loc, 1 ps)
 Loc. 6 Mahé: On fallen leaves of climber liana Epipremnum pinnatum, SLS 32383 (MC pH 5.5).
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 242, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
title: Irish Principals’ Emotional Competencies and Affectively-Attuned Change-Management
Creators: name: Redmond, Michael
Publisher: name: The Open University
Year: 2014

description: The purpose of this study is to characterise the emotional competencies of principals in the Irish voluntary secondary school sector, determining what level of association these have with collaboratively-mediated change management and identifying professional development potential arising from the findings. Emotions act as heuristics-of-value which influence school leaders’ behaviour and an improved qualitative understanding of their emotional competencies can support an enhancement of principals’ action, complementing cognitive/rational approaches in their management of collaboratively-mediated change. A pragmatic methodological perspective is adopted and this is supported by a mixed methods approach. Overall coherence is achieved by undertaking data analysis and conceptual development within a grounded theory framework. The initial study, a focus group, provided rich data from which themed extracts were used to frame a large-scale survey questionnaire distributed electronically to the entire cohort of 380 secondary school principals in Ireland. Findings from this survey and from three subsequent semi-structured interviews were analysed and supported the development of a conceptualisation called ‘affectively-attuned change-management’. This theory argues that in seeking to bridge the gap between having a vision for improvement and the achievement of transformational change, a school leader will require to incorporate attunement to emotion, both intrapersonal and interpersonal, in the establishment of a moral and ethical basis for change (‘Foundations’); the deployment of one’s affective acumen and capacity to sustain (‘Agency’); the activation of a climate of authentic collegiality (‘Connection’) and, ultimately, the mobilisation of energy and empowerment for collaboratively-mediated change (‘Synergy’). This conceptualisation thus presents a synthesis of four overarching processes, each of which is examined in detail, grounded in the numerical and narrative data and linked to the literature. The conceptualisation is then examined for applicability and an actionable heuristic developed, integrating both cognitive and affective considerations into the school leader’s transformational efforts. Implications of the findings for professional development are then explored.
TURYSTYKA KONNA SZANSĄ NA ROZWÓJ OBSZARÓW WIEJSKICH PODKARPACIA – STUDIUM PRZYPADKU
Creators: name: Topczewska, Jadwiga
name: Topczewska, Jadwiga
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: horses tourism
subject: developmental
subject: Podkarpacie

description: The aim of the study was assess the relevance and feasibility of the development of equestrian tourism in Podkarpackie province.One way of increasing incomes for farm holdings could be by using the horse both for recreation and tourism. Analyses of the spread of horse population across the province have revealed an intense relationship between horse breeding farms and urban localities, whose inhabitants are key consumers of such services like recreational riding or hippotherapy. However, analysis concerning sizes of herds in Podkarpacie revealed that the largest of them are located in Bieszczady district. Offers of horse-based tourism in form of one-day or several days rallies are abundant in mountain areas. Available resources, including farms and horses, are pointers to potentials in growing this form of tourism all over Podkarpacie and thus serve as a crucial factor in the development of rural areas of Podkarpackie province.
High-field phase diagram of the Haldane-gap antiferromagnet $Ni (C_5 H_{14} N_2)_2 N_3 (PF_6)$
Creators: name: Tsujii, H.
name: Honda, Z.
name: Andraka, B.
name: Katsumata, K.
name: Takano, Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have determined the magnetic phase diagram of the quasi-one-dimensional $S=$ 1 Heisenberg antiferromagnet $Ni (C_5 H_{14} N_2)_2 N_3 (PF_6)$ by specific heat measurements to 150 mK in temperature and 32 T in magnetic field. When field is applied along the spin-chain direction, a new phase appears at $H_{c2}\approx 14$ T. For the previously known phases of field-induced order, accurate determination is made of the power-law exponents of the ordering temperature near the zero-temperature critical field $H_c$, owing to the four-fold improvement of the minimum temperature over the previous work. The results are compared with the predictions based on the Bose-Einstein condensation of triplet excitations. Substituting deuterium for hydrogen is found to slightly reduce the interchain exchange.
description: 6 pages, 6 figures
title: [Zehnteilige pastorale Sammelhandschrift]; [I bis III und V bis X: erstes Drittel 15. Jahrhundert] ; [IV: zweites Viertel 14. Jahrhundert]
title: (2ra) Collectio exemplorum et miraculorum. (99ra) [Martinus episcopus Bracarensis: Formula honestae vitae]. (102ra) [Burchardus de Monte Sion: Descriptio Terrae sanctae]. (117ra) Liber de nobilitate animae. (124ra) Carmen de passione Catharinae virginis et martyris. (125ra) Peregrinatio et indulgentiae Terrae sanctae. (128ra) Paulus Kölner: Tractatus de poenitentia. (169ra) Marquard von Randegg: Consilium in einer Totschlagssache. (169vb) Quaestiones de homicidio, de clericis excommunicatis, de studio. (170vb) Versus memoriales. (171rb) Notae et Quaestione Iuris. (176ra) Historia septem Sapientum. (199r) Provinciale Romanum. (208ra) Acta Petri et Pauli, et de destructione Hierusalem. (216ra) Franco de Meschede: Aurea fabrica de laudibus beate Mariae. (223ra) Konrad von Würzburg: Die goldene Schmiede. (238ra) [Iohannes Marchesinus a Regio Lepidi: Confessionale]. (262r) [Bartolfus de Nangeio: Gesta Francorum Hierusalem expugnantium]. (308r) Andreas de Ratisbona: Compendium de conditione civitatis Ratisponensis et de diversis haereticis. (324r) De Maxentio et Constantino imperatoribus. (328ra) Consilium de confessione iteranda coram praelatis.
titleType: Subtitle
Creators: name: Martin, von Braga, Bischof von Braga, Bischof
name: Burchardus, de Monte Sion de Monte Sion
name: Paulus, Kölner Kölner
name: Franco, de Meschede de Meschede
name: Konrad, von Würzburg von Würzburg
name: Bartolfus, Peregrinus Peregrinus
name: Martin von Braga, Bischof
name: Burchardus De Monte Sion
name: Konrad Von Würzburg
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2023

description: Papier – Bastarda und Kursive von mehreren Händen, rubriziert