cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: BWL-Studium in Regelstudienzeit? Eine empirische Untersuchung der Gründe langer Studienzeiten am FB Wirtschaft der FH Hannover
Creators: name: Bienert, Michael Leonhard
Publisher: name: Hochschule Hannover
Year: 2011
Subjects: subject: 370 Erziehung, Schul- und Bildungswesen

description: Im November 2001 hat sich am FB Wirtschaft der FH Hannover eine Arbeitsgruppe konstituiert, die sich insbesondere mit dem Phänomen „Langzeitstudium“ auseinander setzen wollte. Hauptziel der Arbeitsgruppe war es, die wesentlichen Ursachen für eine zu lange Studienzeit zu identifizieren. In mehreren Sitzungen wurden ausgehend von zunächst ca. 30 Arbeitshypothesen im Rahmen eines mehrstufigen Bewertungs- und Filterprozesses die Kernthesen formuliert, die nach Auswertung diverser Sekundärmaterialien (z.B. Vordiplome/Diplome, Prüfungsergebnisse) sowie persönlicher Erfahrung der AG-Mitglieder aus dem Studienbetrieb am plausibelsten erschienen. Diese Kernhypothesen (potentielle Gründe) für ein Langzeitstudium am FB Wirtschaft der FH Hannover waren im Ergebnis: H1 Langzeitstudium aufgrund eines Engpass-/Angstscheins oder aufgrund besonders schwerer Prüfungen. H2 Langzeitstudium, weil zur Lebensfinanzierung nebenbei gearbeitet werden muss. H3 Langzeitstudium von Quereinsteigern (Quereinsteiger studieren länger). H4 Langzeitstudium aufgrund höherer Gewichtung „sozialer“ Faktoren gegenüber studiumfocussierter Lebensausrichtung. H5 Langzeitstudium aufgrund schlechten Prüfungsmanagements der Studierenden. Da die vorliegenden Sekundärmaterialien nicht ausreichten, diese Hypothesen zu testen, waren neue Primärerhebungen und entsprechende Ursachenanalysen erforderlich. Im Rahmen seiner Forschungssemesteraktivitäten hat sich der Autor u.a. diese Aufgabe zu eigen gemacht. Es wurde ein Fragebogen konzipiert (vgl. Anhang 1), der im Juni 2002 an Studenten des Hauptstudiums verteilt wurde (Rücklauf N = 144). Die obigen Hypothesen H1 bis H5 werden nachfolgend auf Basis dieses Datensatzes getestet. Eine weitere Befragung von Studenten im Hauptstudium fand am FB Wirtschaft bereits im Januar 2002 statt (zum Fragebogen vgl. Anhang 2; Rücklauf N = 122). Die Ergebnisse dieser Untersuchung werden hier in Auszügen vergleichend mitbetrachtet.
description: Arbeitspapier / Hochschule Hannover, Fakultät IV; 70
Additional file 4 of Enterotypical Prevotella and three novel bacterial biomarkers in preoperative stool predict the clinical outcome of colorectal cancer
Creators: name: Huh, Ji-Won
name: Kim, Min Jung
name: Kim, Jaesik
name: Lee, Hyeon Gwon
name: Ryoo, Seung-Bum
name: Ku, Ja-Lok
name: Jeong, Seung-Yong
name: Park, Kyu Joo
name: Kim, Dokyoon
name: Kim, Jihyun F.
name: Park, Ji Won
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 4: Figure S3. Characterization of ASVs assigned to Bacteroides sp.
Magnetic resonance assessment of effective confinement anisotropy with orientationally-averaged single and double diffusion encoding
Creators: name: Yolcu, Cem
name: Herberthson, Magnus
name: Westin, Carl-Fredrik
name: Özarslan, Evren
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Porous or biological materials comprise a multitude of micro-domains containing water. Diffusion-weighted magnetic resonance measurements are sensitive to the anisotropy of the thermal motion of such water. This anisotropy can be due to the domain shape, as well as the (lack of) dispersion in their orientations. Averaging over measurements that span all orientations is a trick to suppress the latter, thereby untangling it from the influence of the domains' anisotropy on the signal. Here, we consider domains whose anisotropy is modeled as being the result of a Hookean (spring) force, which has the advantage of having a Gaussian diffusion propagator while still retaining the fact of finite spatial range for the diffusing particles. Analytical expressions for the powder-averaged signal under this assumption are given for so-called single and double diffusion encoding schemes, which sensitize the MR signal to the diffusive displacement of particles in, respectively, one or two consecutive time intervals.
description: 12 pages, 3 figures
MOESM1 of Characteristics of tiger moth (Erebidae: Arctiinae) anti-bat sounds can be predicted from tymbal morphology
Creators: name: Dowdy, Nicolas
name: Conner, William
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Acoustic and morphological measurements. The recorded maximum click rates (CR), microtymbal counts (MT), projected tymbal surface area (TYSA; mm2), projected thorax surface area (THSA; mm2), and ratio of TYSA to THSA (T2T) are given for each individual included in the study. The higher taxonomic grouping each belongs to (CLADE), sex, and voucher identification numbers (id) are also given for each specimen. Species identifications were left at “sp” when definitive species level identifications required examination of gentilic morphology. The “cf” designation was used to indicate a close external similarity to a given species, but a definitive identification could not be made due to small deviations in external morphology.
CP violating SUSY effects in Penguin dominated modes B -> PHI K and B -> PHI K*
Creators: name: Dariescu, C.
name: Dariescu, M. A.
name: Deshpande, N. G.
name: Ghosh, Dilip Kumar
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent measurement of time dependent asymmetries in $B \to ϕK$ are indicative of a new source of CP violation. We examine squark mixing in SUSY as this new source, and using QCD improved factorization method to describe $B \to ϕK $ decay, find the allowed range of parameter space for $ρ$ and $ψ$, the magnitude and phase of the down type LR(RL) squark mixing parameter $δ^{bs}_{LR(RL)}$. We then study $B \to ϕK^{*}$ and calculate the expected CP asymmetries in the same range of parameter space. We find that this asymmetry is in the range 15% to $20% $ for acceptable value of $B \to phi K^{*}$ branching ratio. We also predict the helicity dependent CP asymmetries in the same parameter space.
description: 21 pages, Latex, 2 postscript figures. Comments on B_s mixing is added. Typos are corrected in the text and figure label. Figure 1 is corrected. More references are added. Version to be published in Phys. Rev. D
A CO-multilayer outer atmosphere for eight evolved stars revealed with VLTI/AMBER
Creators: name: Hadjara, M.
name: Cruzalèbes, P.
name: Nitschelm, C.
name: Chen, X.
name: Michael, E. A.
name: Moreno, E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We determine the physical parameters of the outer atmosphere of a sample of eight evolved stars, including the red supergiant α Scorpii, the red giant branch stars α Bootis and γ Crucis, the K giant λ Velorum, the normal M giants BK Virginis and SW Virginis, and the Mira star W Hydrae (in two different luminosity phases) by spatially resolving the stars in the individual carbon monoxide (CO) first overtone lines. We used the Astronomical Multi-BEam combineR (AMBER) instrument at the Very Large Telescope Interferometer (VLTI), in high-resolution mode ($λ/Δλ {\approx} 12000$) between 2.28 and 2.31 $μm$ in the K band.The maximal angular resolution is 10 mas, obtained using a triplet telescope configuration, with baselines from 7 to 48 m. By using a numerical model of a molecular atmosphere in a spherical shells (MOLsphere), called PAMPERO (an acronym for the "Physical Approach of Molecular Photospheric Ejection at high-angular-Resolution for evOlved stars"), we add multiple extended CO layers above the photospheric MARCS model at an adequate spatial resolution. We use the differential visibilities and the spectrum to estimate the size ($R$) of the CO MOLsphere, its column density (${N_{CO}}$) and temperature (${T_{mol}}$) distributions along the stellar radius. The combining of the ${χ^2}$ minimization and a fine grid approach for uncertainty analysis leads to reasonable ${N_{CO}}$ and ${T_{mol}}$ distributions along the stellar radius of the MOLsphere.
Coping with Climate Change: A Food Policy Approach
Creators: name: Timmer, C. Peter
name: Timmer, C. Peter
Publisher: name: Unknown
Year: 2013
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
Food Consumption/Nutrition/Food Safety

description: The early drafts of Food Policy Analysis were stimulated by the attention to high food prices following the world food crisis in 1973-74, and the fears of a repeat in 1979-80. But by the fourth full draft, in 1982, it became apparent that surpluses were returning to world food markets. A volume predicated on a world running out of food would have been out of date before the ink was dry, and a full-scale revamping of the analytical messages was needed. After a nearly complete re-write, the new theme, which has stood the test of thirty years of market fluctuations, was the need for flexibility to cope with market instability. That message is even more relevant now, as we learn to cope with a new source of instability—climate change. Such flexibility is not a natural feature of domestic policy making, in the food sector or elsewhere, and providing the analytical tools for understanding how to create flexible responses turned out to be a real challenge. The task in this paper is to ask specifically how climate change would alter the basic message of Food Policy Analysis. Virtually all of the analysis was focused on national policies and domestic markets, an approach that seems problematical for preventing or mitigating climate change, but entirely appropriate for designing adaptation strategies. Climate change is imposing itself as a reality via the increased probability of extreme weather events in general, but also on both global and localized food security outcomes in particular. The ecosystem services provided by the climate are essential for all agricultural production. The most important effects of climate change on agriculture are likely to include a net global loss of agricultural land, changing crop suitability, an increase in the frequency of natural disasters, and greater temporal and geographic variance in production. It will also have negative effects on other areas of agriculture broadly interpreted--reducing the carrying capacity of many rangelands and posing threats to fisheries and aquaculture production systems. Climate change is expected to have highly variable effects on different regions; tropical and equatorial regions will bear the heaviest burdens, with some gains in yields and land availability in temperate regions. Since rural poverty is concentrated in tropical and, in South Asia, coastal areas, climate change is expected to have a disproportionate effect on the already vulnerable. The challenge is to design, analyze and implement in-country “climate-smart agriculture” adaptation projects and programs, which are now part of the food policy agenda, as well as improve the openness to trade in agricultural commodities to even out geographical instability. Designing appropriate policies for bio-fuels also needs to be on the analytical agenda.
Quantum site percolation on amenable graphs
Creators: name: Veselic', Ivan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35J10, 81Q10, 82B43

description: We consider the quantum site percolation model on graphs with an amenable group action. It consists of a random family of Hamiltonians. Basic spectral properties of these operators are derived: non-randomness of the spectrum and its components, existence of an self-averaging integrated density of states and an associated trace-formula.
description: 10 pages, LaTeX 2e, to appear in "Applied Mathematics and Scientific Computing", Brijuni, June 23-27, 2003. by Kluwer publishers
Ilybiosoma kermanensis
Creators: name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Ilybiosoma
Ilybiosoma kermanensis

description: Ilybiosoma kermanensis (J. Balfour-Browne, 1939)
 Material studied. IRAN: 10 spec., ‘E Iran, 2100 m, Taftan, Tamandan, 17-18.4.1973’, ‘Loc. No. 167, Exp. Nat. Mus. Praha’ (NMPC).
 Notes. Endemic to Iran. So far known only from several localities in the Kerman province (BRANCUCCI & HENDRICH 2006). The present finding in Baluchistan suggests its wider occurrence in the highlands of south-eastern Iran.
description: Published as part of Hájek, Jiří, 2006, The westernmost record of Neptosternus circumductus, and a review of Dytiscidae (Coleoptera) of Baluchistan (Iran, Pakistan), pp. 43-56 in Acta Entomologica Musei Nationalis Pragae 46 on page 46, DOI: 10.5281/zenodo.5176688
Agricultural Statistics of Egypt, 1970-84
Creators: name: Gardner, George R.
name: Parker, John B.
name: Gardner, George R.
name: Parker, John B.
Publisher: name: Unknown
Year: 1985
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Egypt
subject: agricultural production
subject: agricultural imports
subject: agricultural exports
subject: consumption
subject: economic indicators
subject: agricultural inputs
subject: agricultural prices.

description: Egypt is one of the world's largest foad importers, annually consuming over $4 billion worth of imported agricultural commodities to feed a population of 48 million. The import bill is growing rapidly as population and consumption ~rowth rates exceed that of agricultural production. Egypt was the 10th largest market for U.S. agricultural exports in 1984. The U.S. market share is about 25 percent, with wheat, wheat flour, and corn making up the bulk of the shipments. This report consists of 90 data tables documenting the Egyptian market. The areas covered include population and labor force, economic indicators, farm characteristics, land use and cropping patterns, commodities, agricultural inputs, per capita consumption, food imports and agricultural trade, agricultural exports, agricultural prices, and other topics. This report is intended as an English-language reference source of use to commodity exporters dealing with the Egyptian market, Government agency planners working with Egypt, and researchers studying the Egyptian economy.
World Food Grain Trade, 1962-83, Wheat, Rice, and Wheat Flour
Creators: name: Mackie, Arthur B.
name: Hiemstra, Stephen W.
name: Rosen, Stacey L.
name: Mackie, Arthur B.
name: Hiemstra, Stephen W.
name: Rosen, Stacey L.
Publisher: name: Unknown
Year: 1985
Subjects: subject: International Relations/Trade
subject: Research Methods/ Statistical Methods
subject: world trade
subject: food grain trade
subject: wheat trade
subject: rice trade
subject: wheat flour trade
subject: grain imports
subject: sources of data
subject: market shares
subject: major exporters

description: World trade in food grains (wheat, rice, and wheat flour) more than doubled from 1962 to 1983, while the number of countries participating in world trade increased 85 percent. Food grain consumption has increased faster than production in most countries so more countries entered world trade for their food needs, thereby increasing the volume and changes the patterns of world trade in food grains. This report is based primarily on the United Nation's world trade data and foreign trade statistics of countries not reporting to the United Nations.
Food Consumption, Prices and Expenditures, 1964-84
Creators: name: Bunch, Karen L.
name: Simon, Grace
name: Bunch, Karen L.
name: Simon, Grace
Publisher: name: Unknown
Year: 1985
Subjects: subject: Research Methods/ Statistical Methods
subject: Food consumption
subject: Nutrients
subject: Retail food prices
subject: Wholesale food prices
subject: Expenditures
subject: Marketing costs

description: Retail food prices in 1984 rose 3.8 percent, aggregate food consumption r~se 1 percent, and personal food consumption. expenditures for food rose 7.0 percent from 1983. This bulletin presents 1964-84 data on per capita food consumption, prices, nutrient availability, food expenditures and marketing costs, and U.s. income and population.. Per capita red meat consumption declined 0.6 pound, while poultry use rose 2 pounds. Dairy product consumption per person increased slightly. Fresh fruit consumption fell 0.9 pound per person, while fresh vegetable consumption increased 4.4 pounds. Total sweetener consumption rose slightly.
Manually driven harmonic oscillator
Creators: name: Silva, M N S
name: Carvalho-Neto, J T
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Oscillations and resonance are essential topics in physics that can be explored theoretically and experimentally in the classroom or teaching laboratory environments. However, one of the main challenges concerning the experimental study of resonance phenomena via forced oscillations is the control of the oscillation frequency, which demands an electronic circuit or a fine tuned coupled mechanical system. In this work, we demonstrate that, in what concerns the physics teaching, such demanding accessories are not necessary. The forced oscillations can be implemented by the teacher's hand guided by an oscillating circle displayed in a web application loaded in a smartphone. The oscillations are applied to an ordinary spiral toy. Qualitative, as well quantitative, proposals are explored in this work with excellent results.
Lifetime of molecule-atom mixtures near a Feshbach resonance in 40K
Creators: name: Regal, C. A.
name: Greiner, M.
name: Jin, D. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We report a dramatic magnetic field dependence in the lifetime of trapped, ultracold diatomic molecules created through an s-wave Feshbach resonance in 40K. The molecule lifetime increases from less than 1 ms away from the Feshbach resonance to greater than 100 ms near resonance. We also have measured the trapped atom lifetime as a function of magnetic field near the Feshbach resonance; we find that the atom loss is more pronounced on the side of the resonance containing the molecular bound state.
Introducción a la noción de bilingüismo
Creators: name: Borja Manzano-Vázquez
Publisher: name: Zenodo
Year: 2022
Subjects: bilingüismo, adquisición de lenguas, CLIL, AICLE

description: Ponencia realizada en el curso El bilingüismo desde un punto de vista lingüístico, cognitivo y pedagógico (Centro Mediterráneo- Universidad de Granada, 07/10/2022-28/10/2022)
Foreign policy as a tool for economic development - the case of Malta and Dom Mintoff 1971-1984
Creators: name: Micallef, Robert
Publisher: name: Anglia Ruskin Research Online (ARRO)
Year: 2025

description: The global historiography of the Cold War is complex, continually expanding and dominated by the analysis of a select few actors that heavily influenced the political climate and international relations after the end of World War II. Smaller states, though less important in the overall context of the Cold War, deserve closer scrutiny as a consequence of the decisions their governments took as they emerged from colonial control. Malta is one example of a state that emerged from British control and recast itself using the Cold War context to achieve certain advantages, particularly through investment, and yet has received little academic attention overall. This thesis explores Malta in the context of international development through its 360-degree approach to foreign policy, as implemented by Prime Minister Dom Mintoff, by applying a complex theoretical framework of nationalism, postcolonialism, nonalignment, East - West relations and neutrality. Using a case study methodological approach, this thesis draws on a range of primary sources from government documents, confidential briefs, speeches and correspondence along with the fragmented academic analyses that already exist on various aspects of Malta's behaviour, decision making and ideological approach to foreign policy during the Cold War. It does so in order to construct and comprehensively evidence the argument that Malta's foreign policy between 1971 and 1984 was highly effective, positioning it as a developing country that was able to converge with the developed world instead of diverging from it and thus avoid the potential trap of becoming dependent on it in the post-imperial context. This thesis is comprised of three distinct but interrelated strands of thought. The distinction between integration and self-determination, failure of Malta's Third World project and its geostrategic position enabling self-sufficiency all contributed to the avoidance of resource curse traps and dependency, empowering Mintoff's governments to successfully recast the nation's international development through its 360-degree approach in a Mediterranean Cold War context.
A mathematical definition of "simplify"
Creators: name: Feinstein, Craig Alan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences
subject: F.1.3

description: Even though every mathematician knows intuitively what it means to "simplify" a mathematical expression, there is still no universally accepted rigorous mathematical definition of "simplify". In this paper, we shall give a simple and plausible definition of "simplify" in terms of the computational complexity of integer functions. We shall also use this definition to show that there is no deterministic and exact algorithm which can compute the permanent of an $n \times n$ matrix in $o(2^n)$ time.
description: 3 pages. This version gives a detailed explanation of the proof in the previous version
Direct Deflection of Particle Dark Matter
Creators: name: Berlin, Asher
name: D'Agnolo, Raffaele Tito
name: Ellis, Sebastian A. R.
name: Schuster, Philip
name: Toro, Natalia
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a new strategy to directly detect light particle dark matter that has long-ranged interactions with ordinary matter. The approach involves distorting the local flow of dark matter with time-varying fields and measuring these distortions with shielded resonant detectors. We apply this idea to sub-MeV dark matter particles with very small electric charges or coupled to a light vector mediator, including the freeze-in parameter space targeted by low mass direct detection efforts. This approach can probe dark matter masses ranging from 10 MeV to below a meV, extending beyond the capabilities of existing and proposed direct detection experiments.
description: 14 pages, 4 figures
Weather in U.S. Agricultural: Monthly Temperature and Precipitation by State and Farm Production Region, 1950-84
Creators: name: Weiss, Michael D.
name: Whittington, Mae W.
name: Teigen, Lloyd D.
name: Weiss, Michael D.
name: Whittington, Mae W.
name: Teigen, Lloyd D.
Publisher: name: Unknown
Year: 1985
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: agricultural climatology
subject: climate
subject: precipitation
subject: temperature
subject: weather
subject: commodity yields

description: Monthly temperature and precipitation by State and farm production region are presented for the years 1950-84. A weighted-average process is used to aggregate across the climatic divisions within the 48 contiguous States. Two sets of aggregation weights are used: geographic areas and areas of harvested cropland.
Eretes griseus
Creators: name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Eretes
Eretes griseus

description: Eretes griseus (Fabricius, 1781)
 Material studied. IRAN: 1♀, ‘Iran, 11.-12.IV.2000, Sistan va Baluchestan prov., Pir Sohrab env., 100 m, (25°44′N, 60°50′E)’, ‘Iran 2000 Czech Biological Expedition, J. Hájek & M. Mikát leg.’ (NMPC). PAKISTAN: 1♀, ‘Pakistan, 4.-7.4.1993, S Balochistan, Awaran (distr. Khuzdar), lgt. S. Bečvář’ (NMPC).
description: Published as part of Hájek, Jiří, 2006, The westernmost record of Neptosternus circumductus, and a review of Dytiscidae (Coleoptera) of Baluchistan (Iran, Pakistan), pp. 43-56 in Acta Entomologica Musei Nationalis Pragae 46 on page 49, DOI: 10.5281/zenodo.5176688
MOESM10 of Characteristics of tiger moth (Erebidae: Arctiinae) anti-bat sounds can be predicted from tymbal morphology
Creators: name: Dowdy, Nicolas
name: Conner, William
Publisher: name: figshare
Year: 2019
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 10: Plot T2T against CR by CLADE. Some clades exhibit a positive relationship between T2T and CR (i.e., Eupseudosomoids, Callimorphoids, Phaegopteroids), others show little to no relation (i.e., Ctenuchoids, Euchaetioids), and the remaining were found to have a negative relationship (i.e., Euchromioids, Cisthenoids).
title: « Contrôle du VIH sans rémittence sous traitement antirétroviral intermittent en cycles courts »
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Annonce de la conférence organisée le 7 avril 2011 à la Faculté de pharmacie suivies d'une brève présentation des contributions du Docteur Jacques Leibowitch dans la recherche sur le sida.
description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111133762513
description: created: start=1975;end=2018
Structure theorem for compact Vaisman manifolds
Creators: name: Ornea, Liviu
name: Verbitsky, Misha
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53C55, 53C25

description: A locally conformally Kaehler (l.c.K.) manifold is a complex manifold admitting a Kaehler covering $\tilde M$, with each deck transformation acting by Kaehler homotheties. A compact l.c.K. manifold is Vaisman if it admits a holomorphic flow acting by non-trivial homotheties on $\tilde M$. We prove a structure theorem for compact Vaisman manifolds. Every compact Vaisman manifold M is fibered over a circle, the fibers are Sasakian, the fibration is locally trivial, and M is reconstructed as a Riemannian suspension from the Sasakian structure on the fibers and the monodromy automorphism induced by this fibration. This construction is canonical and functorial in both directions.
description: 8 pages. Please see the errata in arXiv:1601.07413 (sections 1.3 and 3.2)
A Spectroscopic Technique for Measuring Stellar Properties of Pre-Main Sequence Stars
Creators: name: Doppmann, G. W.
name: Jaffe, D. T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a technique for deriving effective temperatures, surface gravities, rotation velocities, and radial velocities from high resolution near-IR spectra. The technique matches the observed near-IR spectra to spectra synthesized from model atmospheres. For pre-main sequence stars, we use the same matching process to also measure the amount of excess near-IR emission. The information derived from high resolution spectra comes from line shapes and the relative line strengths of closely spaced lines. The values for the stellar parameters we derive are therefore independent of those derived from low resolution spectroscopy and photometry. The new method offers the promise of improved accuracy in placing young stellar objects on evolutionary model tracks. We discuss the possible systematic effects on our determination of the stellar parameters and evaluate the accuracy of the results derivable from high resolution spectra. The analysis of high resolution near-IR spectra of MK standards shows that the technique gives very accurate values for the effective temperature. The biggest uncertainty in comparing our results with optical spectral typing of MK standards is in the spectral type to effective temperature conversion for the standards themselves. Even including this uncertainty, the 1 sigma difference between the optical and IR temperatures for 3000-5800 K dwarfs is only 140 K. In a companion paper (Doppmann, Jaffe, & White 2003), we present an analysis of heavily extincted young stellar objects rho Oph.
description: Accepted for publication in the Astronomical Journal. 37 pages, 9 figures
Growth and Evolution in China's Agricultural Support Policies
Creators: name: Gale, Fred
name: Gale, Fred
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: International Relations/Trade
subject: China
subject: agricultural subsidies
subject: price supports
subject: direct payments
subject: grain
subject: World Trade Organization

description: China is perhaps the most prominent example of a developing country that has transitioned from taxing to supporting agriculture. In recent years, Chinese price supports and subsidies have risen at an accelerating pace after they were linked to rising production costs. Per-acre subsidy payments to grain producers now equal 7 to 15 percent of those producers’ gross income, but grain payments appear to have little influence on production decisions. Chinese authorities began raising price supports annually to bolster incentives and Chinese prices for major farm commodities are rising above world prices, helping to attract a surge of agricultural imports. U.S. agricultural exports to China tripled in value during the period when China’s agricultural support was accelerating. Overall, China’s expansion of support is loosely constrained by World Trade Organization (WTO) commitments, but the country’s price-support programs could exceed WTO limits in coming years. Chinese officials promise to continue increasing domestic policy support for agriculture, but the mix of policies may evolve as the Chinese agricultural sector becomes more commercialized and faces competitive pressures.
A uniform locally constant field approximation for photon-seeded pair production
Creators: name: King, B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A challenge to upcoming experiments that plan to collide a particle beam with laser pulses of moderate intensity is how to correctly incorporate quantum effects into simulation frameworks. Using a uniform approach, we extend the widely-used locally constant field approximation (LCFA) to derive an improved rate of photon-seeded pair creation (the nonlinear Breit-Wheeler process). By benchmarking our "ULCFA" expressions with the lightfront spectrum of: i) exact analytical results and ii) numerical integration of the QED probability for short pulses, we show that our extended approach remains accurate at smaller values of the intensity parameter than the standard LCFA.
description: 8 pages, 3 figures
Landau Expansion for the Kugel-Khomskii $t_{2g}$ Hamiltonian
Creators: name: Harris, A. B.
name: Aharony, Amnon
name: Entin-Wohlman, O.
name: Korenblit, I. Ya.
name: Yildirim, Taner
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Kugel-Khomskii (KK) Hamiltonian for the titanates describes spin and orbital superexchange interactions between $d^1$ ions in an ideal perovskite structure in which the three $t_{2g}$ orbitals are degenerate in energy and electron hopping is constrained by cubic site symmetry. In this paper we implement a variational approach to mean-field theory in which each site, $i$, has its own $n \times n$ single-site density matrix $\rhov(i)$, where $n$, the number of allowed single-particle states, is 6 (3 orbital times 2 spin states). The variational free energy from this 35 parameter density matrix is shown to exhibit the unusual symmetries noted previously which lead to a wavevector-dependent susceptibility for spins in $α$ orbitals which is dispersionless in the $q_α$-direction. Thus, for the cubic KK model itself, mean-field theory does not provide wavevector `selection', in agreement with rigorous symmetry arguments. We consider the effect of including various perturbations. When spin-orbit interactions are introduced, the susceptibility has dispersion in all directions in ${\bf q}$-space, but the resulting antiferromagnetic mean-field state is degenerate with respect to global rotation of the staggered spin, implying that the spin-wave spectrum is gapless. This possibly surprising conclusion is also consistent with rigorous symmetry arguments. When next-nearest-neighbor hopping is included, staggered moments of all orbitals appear, but the sum of these moments is zero, yielding an exotic state with long-range order without long-range spin order. The effect of a Hund's rule coupling of sufficient strength is to produce a state with orbital order.
description: 20 pages, 5 figures, submitted to Phys. Rev. B (2003)
Eretes sticticus
Creators: name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Eretes
Eretes sticticus

description: Eretes sticticus (Linné, 1767)
 Published records. GUÉORGUIEV (1967: 474): ‘ Pakistan: 150 km SW von Quetta, 900 m, 13.5.1965’, and ‘ Pakistan: 80 km NW von Quetta, 2100 m, 15.V.1965 ’. VAZIRANI (1969a: 255): ‘W. Pakistan: Baluchistan’, no additional data provided.
 Material studied. IRAN: 13, ‘Iran, Baluchestan, Bampur, 6.-16.6.1997, M. Kafka lgt.’ (NMPC).
 Notes. MILLER (2002) removed E. griseus from the synonymy of E. sticticus. Therefore, the old literature records should be regarded as doubtful, and revision of all material is desirable.
description: Published as part of Hájek, Jiří, 2006, The westernmost record of Neptosternus circumductus, and a review of Dytiscidae (Coleoptera) of Baluchistan (Iran, Pakistan), pp. 43-56 in Acta Entomologica Musei Nationalis Pragae 46 on page 49, DOI: 10.5281/zenodo.5176688
MOESM2 of Insights into high-pressure acclimation: comparative transcriptome analysis of sea cucumber Apostichopus japonicus at different hydrostatic pressure exposures
Creators: name: Liang, Linying
name: Chen, Jiawei
name: Li, Yanan
name: Zhang, Haibin
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Marine Biology

description: Additional file 2 Table S1. Quality of sequencing. P0.1: experimental group incubated at atmospheric pressure; P15: experimental group incubated at 15 MPa; P25: experimental group incubated at 25 MPa.
MOESM5 of Quality of maternal and newborn healthcare services in two public hospitals of Bangladesh: identifying gaps and provisions for improvement
Creators: name: Taposh Biswas
name: Hasnat Sujon
name: M. Rahman
name: Perry, Henry
name: Mahbub Chowdhury
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 5. Checklist_Infection Orevention.doc (Infection prevention checklist).
Stellar Properties of Pre-Main Sequence Stars from High Resolution Near-IR Spectra
Creators: name: Doppmann, G. W.
name: Jaffe, D. T.
name: White, R. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high resolution (R=50,000) spectra at 2.2 um of 16 young stars in the rho Ophiuchi dark cloud. Photospheric features are detected in the spectra of 11 of these sources, all Class II young stellar objects. In 10 of these sources, we measure effective temperatures, continuum veiling, and vsini rotation from the shapes and strengths of atomic photospheric lines by comparing to spectral synthesis models at 2.2 um. We measure surface gravities in 2 stars from the integrated line flux ratio of the 12CO line region at 2.3 um and the Na I line region at 2.2 um. Although the majority (8/10) of the Class II stars have similar effective temperatures (3530 K +/-100 K), they exhibit a large spread in bolometric luminosities (factor ~8), as derived from near-IR photometry. In the two stars where we have surface gravity measurements from spectroscopy, the photometrically derived luminosities are systematically higher than the spectroscopic luminosities. Our spectroscopic luminosities result in older ages on the H-R diagram than is suggested by photometry at J or K. Most of our sources show a substantially larger amount of continuum excess than stellar flux at 2.2 um. The derived veiling values at K appear correlated with mid-IR disk luminosity, and with Brackett gamma equivalent width, corrected for veiling. The derived vsini rotation is substantial (12-39 km s-1), but systematically less than the rotation measured in Class I.5 (flat) and Class I sources from other studies in Ophiuchus.
description: Accepted for publication in the Astronomical Journal. 37 pages, 8 figures
A Study Of Very Inclined Showers In The Pierre Auger Observatory
Creators: name: Ave, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Engineering Array of the Auger Observatory has been running successfully since 2001 and inclined showers have been recorded from the start. We have analysed the events with zenith angle $>$ 70$^0$ recorded between May and November 2002. The different algorithms developed to analyze these showers are also discussed. An preliminary discussion of a reconstructed event having 20 detectors hit is presented. Inclined showers will be detected by the full Auger Observatory and they will allow significant enhancement of the array aperture. High energy events will be seen as spectacular events with 30 or 40 tanks triggered and they will provide alternative information on muon content in air showers.
description: 4 pages 2 figures
Hydaticus (Guignotites) fabricii
Creators: name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Hydaticus
Hydaticus fabricii

description: [? Hydaticus (Guignotites) fabricii (MacLeay, 1825)]
 Published records. GUIGNOT (1954: 201): ‘Le Bélouchistan’, no additional data provided.
 Notes. Two species, H. fabricii and H. ponticus Sharp, 1882, should occur in the Iranian part of Baluchistan according to GUIGNOT (1954). However, WEWALKA (1979) replaced H. fabricii in Afghanistan and Pakistan by H. ricinus Wewalka, 1979, and all specimens from Iran, which I have studied belong to H. ponticus. Thus, H. fabricii should not be considered as a member of the dytiscid fauna of Baluchistan, and its occurrence there is improbable.
description: Published as part of Hájek, Jiří, 2006, The westernmost record of Neptosternus circumductus, and a review of Dytiscidae (Coleoptera) of Baluchistan (Iran, Pakistan), pp. 43-56 in Acta Entomologica Musei Nationalis Pragae 46 on page 49, DOI: 10.5281/zenodo.5176688
Calculation and optical measurement of laser trapping forces on non-spherical particles
Creators: name: Nieminen, T. A.
name: Rubinsztein-Dunlop, H.
name: Heckenberg, N. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical trapping, where microscopic particles are trapped and manipulated by light is a powerful and widespread technique, with the single-beam gradient trap (also known as optical tweezers) in use for a large number of biological and other applications. The forces and torques acting on a trapped particle result from the transfer of momentum and angular momentum from the trapping beam to the particle. Despite the apparent simplicity of a laser trap, with a single particle in a single beam, exact calculation of the optical forces and torques acting on particles is difficult. Calculations can be performed using approximate methods, but are only applicable within their ranges of validity, such as for particles much larger than, or much smaller than, the trapping wavelength, and for spherical isotropic particles. This leaves unfortunate gaps, since wavelength-scale particles are of great practical interest because they are readily and strongly trapped and are used to probe interesting microscopic and macroscopic phenomena, and non-spherical or anisotropic particles, biological, crystalline, or other, due to their frequent occurance in nature, and the possibility of rotating such objects or controlling or sensing their orientation. The systematic application of electromagnetic scattering theory can provide a general theory of laser trapping, and render results missing from existing theory. We present here calculations of force and torque on a trapped particle obtained from this theory and discuss the possible applications, including the optical measurement of the force and torque.
description: 10 pages, 5 figures
F-theory and Heterotic Duality, Weierstrass Models from Wilson lines
Creators: name: Chabrol, Lilian
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present how to construct elliptically fibered K3 surfaces via Weierstrass models which can be parametrized in terms of Wilson lines in the dual heterotic string theory. We work with a subset of reflexive polyhedras that admit two fibers whose moduli spaces contain the ones of the $E_{8}\times E_{8}$ or $\frac{Spin(32)}{\mathbb{Z}_{2}}$ heterotic theory compactified on a two torus without Wilson lines. One can then interpret the additional moduli as a particular Wilson line content in the heterotic strings. A convenient way to find such polytopes is to use graphs of polytopes where links are related to inclusion relations of moduli spaces of different fibers. We are then able to map monomials in the defining equations of particular K3 surfaces to Wilson line moduli in the dual theories. Graphs were constructed developing three different programs which give the gauge group for a generic point in the moduli space, the Weierstrass model as well as basic enhancements of the gauge group obtained by sending coefficients of the hypersurface equation defining the K3 surface to zero.
description: 24 pages
MOESM1 of Estimation of SLR station coordinates by means of SLR measurements to kinematic orbit of LEO satellites
Creators: name: Guo, Jinyun
name: Wang, Youcun
name: Shen, Yi
name: Liu, Xin
name: Sun, Yu
name: Kong, Qiaoli
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Table S1. Statistics of the RMS of the GRACE-A satellite orbits at different interpolation orders and arc length (unit: m).
Deliverable D6.2 - Intermediate report on Dissemination and Exploitation activities and Open Calls
Creators: name: Hrasnica, Halid
Publisher: name: Zenodo
Year: 2024

description: This document presents an intermediate report on performed dissemination and communication, exploitation and standardization 6G-SANDBOX activities, the project involvement in the SNS program and cooperation with other projects, as well as implementation of the 6G-SANDBOX open calls during the first half of the project; M1-M18.
Phase-space density in heavy-ion collisions revisited
Creators: name: Zhang, Q. H.
name: Barrette, J.
name: Gale, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the phase space density of bosons from a general boson interferometry formula. We find that the phase space density is connected with the two-particles and the single particle density distribution functions. If the boson density is large, the two particles density distribution function can not be expressed as a product of two single particle density distributions. However, if the boson density is so small that two particles density distribution function can be expressed as a product of two single particle density distributions, then Bertsch's formula is recovered. For a Gaussian model, the effects of multi-particles Bose-Einstein correlations on the mean phase space density are studied.
description: 18 Pages, Four eps files, EPJC in Press
Spin-phonon interfaces in coupled nanomechanical cantilevers
Creators: name: Oeckinghaus, Thomas
name: Momenzadeh, S. Ali
name: Scheiger, Philipp
name: Shalomayeva, Tetyana
name: Finkler, Amit
name: Dasari, Durga
name: Stöhr, Rainer
name: Wrachtrup, Jörg
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Coupled micro- and nanomechanical oscillators are of fundamental and technical interest for emerging quantum technologies. Upon interfacing with long-lived solid-state spins, the coherent manipulation of the quantum hybrid system becomes possible even at ambient conditions. While, the ability of these systems to act as a quantum bus inducing long-range spin-spin interactions has been known, the possibility to coherently couple electron/nuclear spins to the common modes of multiple oscillators and map their mechanical motion to spin-polarization has not been experimentally demonstrated. We here report experiments on interfacing spins to the common modes of a coupled cantilever system, and show their correlation by translating ultra-low forces induced by radiation from one oscillator to a distant spin. Further, we analyze the coherent spin-spin coupling induced by the common modes and estimate the entanglement generation among distant spins.
Estimation of the Local Density of States on a Quantum Computer
Creators: name: Emerson, Joseph
name: Lloyd, Seth
name: Poulin, David
name: Cory, David
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We report an efficient quantum algorithm for estimating the local density of states (LDOS) on a quantum computer. The LDOS describes the redistribution of energy levels of a quantum system under the influence of a perturbation. Sometimes known as the ``strength function'' from nuclear spectroscopy experiments, the shape of the LDOS is directly related to the survivial probability of unperturbed eigenstates, and has recently been related to the fidelity decay (or ``Loschmidt echo'') under imperfect motion-reversal. For quantum systems that can be simulated efficiently on a quantum computer, the LDOS estimation algorithm enables an exponential speed-up over direct classical computation.
description: 4 pages (revtex) including 1 figure