cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Number Counts of Bright Extremely Red Objects: Evolved Massive Galaxies at z~1
Creators: name: Vaisanen, P.
name: Johansson, P. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results on number counts of Extremely Red Objects (EROs) in a 2850 arcmin^2 near-infrared survey performed in European Large Area ISO Survey (ELAIS) fields at K<17.5. Counts of EROs are extended to brighter levels than available previously, giving 0.002 +/- 0.001 arcmin^-2 at K<16.5 and consistent numbers with literature values at fainter magnitudes. Photometric redshifts from HYPERZ as well as GRASIL model SEDs of galaxies imply that our EROs are located in the range z=0.7-1.5, with the bulk of the population at z~1. Taking advantage of the ISO data in the fields, we use mid-IR detections to constrain the number of dusty EROs, and also discuss the superior capabilities of Spitzer Space Telescope to detect dusty EROs. Both the mid-IR data and the use of colour-colour diagrammes indicate that at most 10-20% of the EROs in this bright regime are dusty starbursting systems. The space density of our EROs, interpreted to be counterparts of local >2-3L^star massive galaxies at around z~1, is estimated to be approx. 2x10^-5 Mpc^-3, which is consistent with local values. Furthermore, the cumulative number counts at our bright magnitudes are remarkably well fitted by pure luminosity evolution models.
description: A&A, accepted, 14 pages and 8 ps-figs
Front Matter
Creators: name: , Food
name: , Food
Publisher: name: Unknown
Year: 1998
Subjects: Agribusiness
Agricultural and Food Policy
Industrial Organization
International Relations/Trade

description: The Proceedings of Economic and Policy Implications of Structural Realignments in Food and Ag Markets: A Case Study Approach. The Food and Agricultural Marketing Consortium Research Conference Shadow Ridge Hotel, Park City, Utah July 31-August 2, 1998 Retrieved from internet archive page. https://web.archive.org/web/19991009055336/http://www.ag.uiuc.edu:80/famc/program98/prgrm98.htm
title: The role of the wingless gene in the control of growth and pattern formation during drosophila wing development
Creators: name: Neumann, Carl Joachim
Publisher: name: The Open University
Year: 1997

description: Recent work on Drosophila limb development has indicated that short-range interactions between distinctly specified populations of cells (compartments) establish organizing centers at compartment boundaries. These organizing centers direct pattern formation and growth in the developing limbs. In the Drosophila wing imaginal disc, there are at least two such organizing centers, located at the anterior/posterior (A/P) and dorsal/ventral (D/V) compartment boundaries. The genetic hierarchies which establish these organizers are starting to be understood, and it also appears that the key mediators of some of the organizers have been identified. Thus Decapentaplegic (Dpp, a secreted signalling molecule of the TGF-B family) is the mediator of the A/P organizer, while Wingless (DWnt-l, a secreted molecule of the Wnt family) is a key mediator of the D/V organizer. In this thesis, several aspects of Wingless function in the wing imaginal disc are examined. Two regulatory mutations, spadeflag (spdfg) and Sternopleural (Sp), that affect Wingless expression in the wing imaginal disc are characterized. The analysis of the mutation spdfg, together with other data, identifies a role of Wingless as a localized mitogen in the developing wing hinge, and also indicates that cells in different regions of the wing disc respond very differently to the Wingless signal. The mutations spdfg and Sp are also among the tools used to examine the position of Wingless in the genetic hierarchy that establishes and mediates the activity of the D/V organizer. These experiments extend the evidence suggesting that Wingless mediates both short-range and long-range effects of the D/V organizer. Wg does so by controlling the expression domains of different target genes, including the acheate-scute genes, Distal-less and vestigial. Finally, the mechanism by which Wingless mediates the activity of the D/V organizer is examined. The results obtained suggest that Wingless functions as a long-range morphogen.
Promoting the health of healthcare workers : evaluating patient violence in healthcare
Creators: name: Kling, Rakel Nessa
Publisher: name: University of British Columbia
Year: 2011

description: Introduction: The high rate of violence in the healthcare sector supports the need for greater prevention efforts. This study had two main objectives: 1) identify risk factors for violence province- wide and 2) investigate the effectiveness of a violence risk assessment system in reducing the risk of violence in an acute care hospital in British Columbia. Methods: Study 1: Data was extracted for a one-year period from the Workplace Health Indicator Tracking and Evaluation (WHITE ™) database for all employee reports of violent incidents for four of the six British Columbia Health Authorities. Risk factors for violence were identified through comparisons of incident rates (number of incidents/100,000 worked hours) by work characteristics, and by regression models. Study 2: Hospital violence incident rates (number of incidents/ 100,000 worked hours)were calculated pre, during and post implementation of the Alert System, a violence risk assessment system, at one acute care hospital. Then, using a retrospective case control study design, multivariable conditional logistic regression was used to model the effect of the Alert System (flag status yes or no) on the risk of a patient violent incident. Results: Study 1: Across health authorities, three groups at particularly high risk for violence were identified: very small healthcare facilities, the care aide occupation, and pediatric departments in acute care hospitals. Study 2: The violent incident rate decreased during the Alert System implementation period, but subsequently returned to pre-implementation levels. In the case-control analyses, patients flagged for violence were associated with an increased rather than decreased risk for violence. Conclusions: Study 1: The specific risk factors that put health care groups at an increased risk of violence should be examined so that targeted prevention or intervention efforts can be implemented. The identification of high-risk groups supports the importance of a province-wide surveillance system. Study 2: Although useful at identifying violent patients, the Alert System does not appear to provide the resources or procedures needed by health care workers to prevent a patient from progressing to a violent incident once flagged. These studies suggest that violence in healthcare should be studied and prevented using a multifaceted approach.
Duel of cosmological screening lengths
Creators: name: Canay, Ezgi
name: Eingorn, Maxim
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two distinct perturbative approaches have been recently formulated within General Relativity, arguing for the screening of gravity in the $Λ$CDM Universe. In this paper we compare them and show that the offered screening concepts, each characterized by its own interaction range, can peacefully coexist. Accordingly, we advance a united scheme, determining the gravitational potential at all scales, including regions of nonlinear density contrasts, by means of a simple Helmholtz equation with the effective cosmological screening length. In addition, we claim that cosmic structures may not grow at distances above this Yukawa range and confront its current value with dimensions of the largest known objects in the Universe.
description: 17 pages, one nice figure
A note on world precipitation during the last glaciation
Creators: name: Galloway, R. W.
Publisher: name: Geozon Science Media
Year: 1965

description: 72% der Gesamt-Niederschläge auf der Erde fallen zwischen den Breitengraden 40° N und 40° S. Unter der Voraussetzung, daß während der letzten Eiszeit die Verdunstung — und damit die Niederschläge — 20% niedriger waren als heute, muß man annehmen, daß zu jener Zeit in den mittleren und niederen Breiten keine Pluvialzeit stattgefunden haben kann.
description: research
Polarization of Water Masers in the presence of Velocity and Magnetic Field Gradients
Creators: name: Vlemmings, W. H. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Through polarization observations water masers are excellent probes of magnetic fields in the maser region. Magnetic field strengths, such as those in the water masers regions of the envelopes of late-type stars and star-forming regions, are typically determined using a direct relation between the field strength and the observed circular polarization. Here it is shown that velocity and magnetic field gradients along the maser have a significant effect on the field strengths obtained from circular polarization observations. Due to velocity gradients the actual magnetic field strength could be up to 100% higher than the field strength derived from the observations. Additionally, when a magnetic field gradient is present, the resulting circular polarization derived is caused predominantly by the average magnetic field in the unsaturated maser core. Measurements of the fractional linear polarization are not affected by velocity or magnetic field strength gradients, though changes in the magnetic field angle along the maser do quench the linear polarization intensity when the maser saturates.
description: 6 pages, 4 figures; accepted for publication in A&A
Intermittent dynamics of antiferromagnetic phase in inhomogeneous iron-based chalcogenide superconductor
Creators: name: Ricci, A.
name: Campi, G.
name: Joseph, B.
name: Poccia, N.
name: Innocenti, D.
name: Gutt, C.
name: Tanaka, M.
name: Takeya, H.
name: Takano, Y.
name: Mizokawa, T.
name: Sprung, M.
name: Saini, N. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Coexistence of phases, characterized by different electronic degrees of freedom, commonly occurs in layered superconductors. Among them, alkaline intercalated chalcogenides are model systems showing microscale coexistence of paramagnetic (PAR) and antiferromagnetic (AFM) phases, however, temporal behavior of different phases is still unknown. Here, we report the first visualization of the atomic motion in the granular phase of K$_{x}$Fe$_{2-y}$Se$_2$ using X-ray photon correlation spectroscopy. Unlike the PAR phase, the AFM texture reveals an intermittent dynamics with avalanches as in martensites. When cooled down across the superconducting transition temperature T$_c$, the AFM phase goes through an anomalous slowing behavior suggesting a direct relationship between the atomic motions in the AFM phase and the superconductivity. In addition of providing a compelling evidence of avalanche-like dynamics in a layered superconductor, the results provide a basis for new theoretical models to describe quantum states in inhomogeneous solids.
description: 6 pages, 3 figures
Neriene peltata
Creators: name: Isaia, Marco
name: Paschetta, Mauro
name: Chiarle, Alberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Neriene
Neriene peltata

description: Neriene peltata (Wider, 1834)
NEW DATA. — Entracque: Tetti Violin, riparian habitats, 900-1100 m, 10. VI.2011, 1♂ (collected within the PIT Summer School 2011); Vallone del Bousset, Torrente Bousset, beech forest and nearby habitats, 1000-1300 m, 21.IX.2008, 1♀; Valdieri: pathway to Pian del Valasco, Alpine pasture, 1300-1764 m, 7.VII.2011, 1♀ (MRSN); pathway to Pian del Valasco, beech forest, 1500-2000 m, 30. VI.2009, 2♂, 1♀ (MRSN); pathway to Rifugio Livio Bianco, Alpine prairies with rocky debris, 1200-1800 m, 30. VI.2011, 1♀ (MRSN); Vernante: Palanfrè, Gias del Chiot, beech forest, 1550 m, 10.IX.2008, 1♀; Vallone degli Alberghi, sparse wood, grassland and rock-debris, 1400-2000 m, 5. VI.2010, 1♀.
 LITERATURE. — Lambiase et al. (2007).
CHOROTYPE. — OLA.
MACROHABITAT. — Alpine prairies, broadleaved woods, riparian habitats.
description: Published as part of Isaia, Marco, Paschetta, Mauro & Chiarle, Alberto, 2015, Annotated checklist of the spiders (Arachnida, Araneae) of the Site of Community Importance and Special Area of Conservation " Alpi Marittime " (NW Italy), pp. 57-114 in Zoosystema 37 (1) on page 71, DOI: 10.5252/z2015n1a4, http://zenodo.org/record/4577680
Model of macroeconomic evolution in stable regionally dependent economic fields
Creators: name: Ausloos, Marcel
name: Clippe, Paulette
name: Pekalski, Andrzej
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We develop a model for the evolution of economic entities within a geographical type of framework. On a square symmetry lattice made of three (economic) regions, firms, described by a scalar fitness, are allowed to move, adapt, merge or create spin-offs under predetermined rules, in a space and time dependent economic environment. We only consider here one timely variation of the ''external economic field condition''. For the firm fitness evolution we take into account a constraint such that the disappearance of a firm modifies the fitness of nearest neighboring ones, as in Bak-Sneppen population fitness evolution model. The concentration of firms, the averaged fitness, the regional distribution of firms, and fitness for different time moments, the number of collapsed, merged and new firms as a function of time have been recorded and are discussed. Also the asymptotic values of the number of firms present in the three regions together with their average fitness, as well as the number of respective births and collapses in the three regions are examined. It appears that a sort of $critical$ selection pressure exists. A power law dependence, signature of self-critical organization is seen in the birth and collapse asymptotic values for a high selection pressure only. A lack of self-organization is also seen at region borders.
description: 11 figures double columns on 7 pages
Frostspaltenmakropolygone im westlichen Zentral—Island, ihre klimatischen und edaphischen Bedingungen
Creators: name: Schunke, Ekkehard
Publisher: name: Geozon Science Media
Year: 1974

description: Frostspaltenmakropolygone gelten wie Pingos und Palsas als geo-morphologische Indikatoren für ein extrem scharfes Frostklima kontinentaler Prägung. Unter diesem Gesichtspunkt werden die im Umkreis von Hofs- und Langjökull im westlichen Zentral-Island ausgebildeten Frostspaltenmakropolygone (Weite: 15—35 m) untersucht, und zwar anhand einer Formen- und Verbreitungsanalyse sowie auf der Grundlage einer sedimentologischen Auswertung von Grabungsprofilen. Bei den Frostspaltenmakropolygonen Zentral-Islands handelt es sich um subrezente Formen, für die sich mit Hilfe der Tephrochronologie vielfach eine Entstehung während der Kälteperiode des 16. bis 19. Jahrhunderts nachweisen läßt. Bemerkenswerterweise hat die Frostspaltenbildung seit den 60er Jahren dieses Jahrhunderts eine Wiederbelebung erfahren. Daraus, sowie aus weiteren periglazialmorphologischen Indizien, kann auf eine jüngste Verschärfung des Frostklimas in Zentral-Island geschlossen werden, die stellenweise auch zu einer Aggradation von Permafrost führt. Genauer faßbar ist diese jüngste Temperaturerniedrigung anhand von meteorologischen Daten, aus denen sich eine Erniedrigung der Jahresmitteltemperatur um 1.6°C bis 1.8°C gegenüber der Normalperiode ablesen läßt. Dabei ist die winterliche Temperaturerniedrigung von 0,7° C bis 2.7°C erheblich größer als die sommerliche von 0.7°C bis 1.2°C. Da eine Temperaturerniedrigung in der genannten Größenordnung ausreicht, um eine Wiederbelebung der Frostspaltenbildung herbeizuführen, dürften die gegenwärtigen frostklimatischen Bedingungen in Zentral-Island die untere klimatische Existenzgrenze der Frostspaltenbildung darstellen.
description: research
Classification of reflection matrices related to (super) Yangians and application to open spin chain models
Creators: name: Arnaudon, D.
name: Avan, J.
name: Crampe', N.
name: Doikou, A.
name: Frappat, L.
name: Ragoucy, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81R50; 17B37

description: We present a classification of diagonal, antidiagonal and mixed reflection matrices related to Yangian and super-Yangian R matrices associated to the infinite series so(m), sp(n) and osp(m|n). We formulate the analytical Bethe Ansatz resolution for the so(m) and sp(n) open spin chains with boundary conditions described by the diagonal solutions.
description: 36 pages ; references added ; typos corrected, precisions added
Evidence of spontaneous spin polarization in the two-dimensional electron gas
Creators: name: Goñi, A. R.
name: Giudici, P.
name: Reboredo, F. A.
name: Proetto, C. R.
name: Thomsen, C.
name: Eberl, K.
name: Hauser, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Density-functional calculations using an exact exchange potential for a two-dimensional electron gas (2DEG) formed in a GaAs single quantum well predict the existence of a spin-polarized phase, when an excited subband becomes slightly populated. Direct experimental evidence is obtained from low temperature and low excitation-power photoluminescence (PL) spectra which display the sudden appearance of a sharp emission peak below the energy of the optical transition from the first excited electron subband upon its occupation. The behavior of this PL feature in magnetic fields applied in-plane as well as perpendicular to the 2DEG indicate the formation of spin-polarized domains in the excited subband with in-plane magnetization. For it speaks also the strong enhancement of exchange-vertex corrections observed in inelastic light scattering spectra by spin-density excitations of a slightly occupied first-excited subband.
description: one tex file and four figures
To Ban or Not to Ban? Implications of the Recent Ban on Poultry Imports by Ghana
Creators: name: Zamani, Omid
name: Chibanda, Craig
name: Pelikan, Janine
name: Zamani, Omid
name: Chibanda, Craig
name: Pelikan, Janine
Publisher: name: Unknown
Year: 2021
Subjects: subject: International Relations/Trade
subject: Production Economics
subject: Import ban
subject: chicken
subject: imports
subject: poultry
subject: Ghana

description: Due to the Avian Influenza outbreak in Europe and Russia, Ghana has imposed an import ban on affected countries. This paper analyses the potential effects of this partial ban on Ghanaian chicken producers and agricultural trade. Due to the growing support for a total ban on poultry imports by various value chain actors, we also analyse the impact of a complete ban on Ghana's poultry imports. We apply an integrated method covering General Equilibrium and typical farm analysis. Our findings show that the partial ban has a lower effect on trade and the whole economy compared with the total ban. Nevertheless, the effect of a total ban on domestic producers is more significant. Moreover, a total import ban increases production mainly for the large-scale integrated farms in Ghana.
Zur spätpleistozänen Vegetationsentwicklung der Banquette von Barraux (Grésivaudan, französische Nordalpen
Creators: name: Peschke, Peter
Publisher: name: Geozon Science Media
Year: 2000

description: In dem in den französischen Nordalpen gelegenen und von der mittleren Isère durchflossenen Grésivaudan wurde pollenanalytisch „Unterhalb La Flachère" in rund 330 m Höhe eine durchlaufende, 10 m mächtige letztinterglazial- bis frühestweichselzeitliche fossilführende Feinsedimentsequenz nachgewiesen. Sie wird vom Eem (OIS 5e), dem St. Germain I und II (OIS 5c, 5a) sowie dem ältesten frühestweichselzeitlichen Kiefern Fichten-Interstadial (OIS 5a-4) gebildet. Erstmals fand sich hier der rein pollenanalytische Beweis, dass auch inneralpin in der collinen Stufe in allen letztinterglazialzeitlichen Warmphasen thermophile Baumarten vertreten sein können. Die Feinsedimentabfolge von Unterhalb La Flachère ist Bestandteil eines kompletten pleistozänen Sedimentationszyklus. Er reicht von der Saale- (= OIS 6) bis zur Weichselmoräne (OIS 2,4?) und verweist auf eine besonders mächtige Talverschüttung im Frühestweichsel (Übergangsbereich OIS 5a-4). Mittels der Methode der modernen Analoge, bei der die Klimarekonstruktion zu fossilen Pollenspektren durch den Vergleich mit rezenten Oberflächenspektren und den dazugehörenden klimatischen Daten erfolgt, wurden die pollenanalytischen Ergebnisse in Paläoklimawerte überführt.
description: research
On the renormalisability of gauge invariant extensions of the squared gauge potential
Creators: name: Esole, Mboyo
name: Freire, Filipe
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that gauge invariant extensions of the local functional $\cO = \frac12\int d^4x A^2$ have long range non localities which can only be ``renormalised'' with reference to a specific gauge. Consequently, there is no gauge independent way of claiming the perturbative renormalisability of these extensions. In particular, they are not renormalisable in the modern sense of Weinberg and Gomis. Critically, our study does not support the view that ghost fields play an indispensable role in the extension of a local operator into a non-local one as claimed recently in the literature.
description: 1+13 pages. Revised version. New title and abstract. Extended introduction and several sentences have been inserted. Final version to appear in Physics Letters B
Quantum mechanics of the two-dimensional circular billiard plus baffle system and half-integral angular momentum
Creators: name: Robinett, R. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the quantum mechanical eigensolutions of the two-dimensional infinite well or quantum billiard system consisting of a circular boundary with an infinite barrier or baffle along a radius. Because of the change in boundary conditions, this system includes quantized angular momentum values corresponding to half-integral multiples of $\hbar/2$. We discuss the resulting energy eigenvalue spectrum and visualize some of the novel energy eigenstates found in this system. We also discuss the density of energy eigenvalues, $N(E)$, comparing this system to the standard circular well. These two billiard geometries have the same area (A=$πR^2$), but different perimeters ($P=2πR$ versus $(2π+ 2) R$), and we compare both cases to fits of $N(E)$ which make use of purely geometric arguments involving only $A$ and $P$. We also point out connections between the angular solutions of this system and the familiar pedagogical example of the one-dimensional infinite well plus $δ$-function potential.
description: 24 pages, 8 figures
Quantum nature of laser light
Creators: name: Pegg, David T.
name: Jeffers, John
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: All compositions of a mixed-state density operator are equivalent for the prediction of the probabilities of future outcomes of measurements. For retrodiction, however, this is not the case. The retrodictive formalism of quantum mechanics provides a criterion for deciding that some compositions are fictional. Fictional compositions do not contain preparation device operators, that is operators corresponding to states that could have been prepared. We apply this to Molmer's controversial conjecture that optical coherences in laser light are a fiction and find agreement with his conjecture. We generalise Molmer's derivation of the interference between two lasers to avoid the use of any fictional states. We also examine another possible method for discriminating between conerent states and photon number states in laser light and find that it does not work, with the equivalence for prediction saved by entanglement.
Don't Forget to Lock the Front Door! Inferring the Deployment of Source Address Validation of Inbound Traffic
Creators: name: Korczyński, Maciej
name: Nosyk, Yevheniya
name: Lone, Qasim
name: Skwarek, Marcin
name: Jonglez, Baptiste
name: Duda, Andrzej
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper concerns the problem of the absence of ingress filtering at the network edge, one of the main causes of important network security issues. Numerous network operators do not deploy the best current practice - Source Address Validation (SAV) that aims at mitigating these issues. We perform the first Internet-wide active measurement study to enumerate networks not filtering incoming packets by their source address. The measurement method consists of identifying closed and open DNS resolvers handling requests coming from the outside of the network with the source address from the range assigned inside the network under the test. The proposed method provides the most complete picture of the inbound SAV deployment state at network providers. We reveal that 32 673 Autonomous Systems (ASes) and 197 641 Border Gateway Protocol (BGP) prefixes are vulnerable to spoofing of inbound traffic. Finally, using the data from the Spoofer project and performing an open resolver scan, we compare the filtering policies in both directions.
Schneegrenze und Klima der Würmeiszeit an der baskischen Küste (Studien zur eiszeitlichen Vergletscherung in Spanien I)
Creators: name: Kopp, Karl-Otto
Publisher: name: Geozon Science Media
Year: 1963

description: Aus dem ostkantabrischen Gebirge Nordspaniens werden Vereisungsspuren beschrieben. In der Sierra de Aralar (Provinz Guipuzcoa) reicht die Endmoräne eines 4-5 km langen Würm-Talgletschers bis 825 m hinab. Die klimatische Schneegrenze lag damals 1050 m hoch; heute läge sie theoretisch in 2 400 m Höhe. Am Nordostfuß des gleichen Gebirges reicht eine Endmoräne unbekannten Alters bis 460 m hinunter. Lokale Faktoren: Exposition, sommerliche Trockenheit und ein Vormittagsmaximum im täglichen Bewölkungsgang drückten dort auf einem 1700m langen „Schneewächtengletscher« die Schneegrenze auf 650m Höhe, d.h. 400m unter die klimatische hinab. Die eiszeitlichen Monatsmitteltemperaturen San Sebastians betrugen etwa + 8° im Sommer und —5° im Winter. Sie waren gegenüber den heutigen um 11° im Sommer und um 12-13° im Winter abgesenkt. Die jährliche Niederschlagsmenge kann nach der von A. Klein (1953) angegebenen Methode auf ungefähr 2/3 der heutigen geschätzt werden. Ihre jahreszeitliche Verteilung, und damit auch die des Luftdrucks und der Winde, war von der heutigen nicht sehr verschieden.
description: research
title: Intrusive thoughts, crisis support and symptoms of post-traumatic stress disorders in adolescents involved in road traffic accidents
Creators: name: Meares, Kevin James Martin
Publisher: name: The Open University
Year: 1997

description: This study aimed to survey an adolescent sample for the prevalence of PTSD symptoms following a road traffic accident (RTA). In addition, it aimed to examine the relationship between PTSD symptoms and a number of variables which have been suggested by Rachman's (1980) emotional processing theory to be important in the development of PTSD. Rachman's theory suggests that intrusive phenomena are indicative of emotional processing. His theory accounts for both everyday and trauma related intrusive phenomena and suggests that the same mechanisms are employed in both everyday and traumatic processing. This study examined the influence of controllability and affective discomfort associated with everyday intrusive thoughts on the levels of PTSD seen in adolescents involved in RTAs. In addition, other variables were assessed which were suggested by Rachman to be indicative of successful emotional processing (e.g. social support). 34 adolescents between the age of 10 and 16, who had been involves in RTAs were asked to complete a battery of questionnaires presented in a structured interview format. Each participant completed the Impact of Events Scale (Horowitz et al., 1979), the Revised Children's Manifest Anxiety Scale (Reynolds and Richmond, 1978), the Birleson depression inventory (Birleson, 1981), the Crisis Support Scale (Joseph et al., 1992) and two measures of accident related intrusive thoughts and everyday intrusive thoughts which have been adapted from previously used instruments (Salkovskis, 1985, Allsopp and Williams, 1996). A quarter of all adolescents involved in RTAs were found to suffer severe levels of PTSD psychopathology as measured by the IES. The experience of accident related intrusive thoughts was associated with higher levels of PTSD symptoms. Everyday intrusive thoughts, that were controllable and did not cause affective discomfort, were associated with lower levels of PTSD symptoms. Post-traumatic symptoms were predicted by accident severity variables such as collision speeds and degree of injury. Variables suggested by Rachman (e.g. controllability of intrusive thoughts) were found to supplement accident severity variables. While considering the methodological problems encountered, the results of this study are discussed along with their implications for clinical practice and future research.
The Graphics Card as a Streaming Computer
Creators: name: Venkatasubramanian, Suresh
Publisher: name: arXiv
Year: 2003
Subjects: subject: Graphics (cs.GR)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences
subject: C.1.2;F.1.1;I.3.1

description: Massive data sets have radically changed our understanding of how to design efficient algorithms; the streaming paradigm, whether it in terms of number of passes of an external memory algorithm, or the single pass and limited memory of a stream algorithm, appears to be the dominant method for coping with large data. A very different kind of massive computation has had the same effect at the level of the CPU. The most prominent example is that of the computations performed by a graphics card. The operations themselves are very simple, and require very little memory, but require the ability to perform many computations extremely fast and in parallel to whatever degree possible. What has resulted is a stream processor that is highly optimized for stream computations. An intriguing side effect of this is the growing use of a graphics card as a general purpose stream processing engine. In an ever-increasing array of applications, researchers are discovering that performing a computation on a graphics card is far faster than performing it on a CPU, and so are using a GPU as a stream co-processor.
description: 2 pages: corrected missing bibliographic references
POTENTIAL FOR THE USE OF ANTITRANSPIRANTS IN SWEET CORN PRODUCTION
Creators: name: Shekour, G.M.
name: Brathwaite, R.A.I.
name: McDavid, C.R.
name: Shekour, G.M.
name: Brathwaite, R.A.I.
name: McDavid, C.R.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The general principles governing the application of antitranspirants are reviewed and results of research work with an antitranspirants on sweet corn (Zea mays L. var. saccharata Sturt.) carried out in the Faculty of Agriculture, University of the West Indies, are discussed. Phenylmercuric acetate (PHA) and Vaporgard are identified as two promising chemicals for use in sweet corn production under dry Trinidad conditions.
Stratigraphische Begriffe für das Quartär des norddeutschen Vereisungsgebietes
Creators: name: Litt, Thomas
name: Behre, Karl-Ernst
name: Meyer, Klaus-Dieter
name: Stephan, Hans-Jürgen
name: Wansa, Stefan
Publisher: name: Geozon Science Media
Year: 2007

description: Norddeutschland und angrenzende Gebiete, beeinflusst durch die skandinavischen Inlandvereisungen, sind klassische Regionen der Quartärgeologie und -stratigraphie. Der Schweizer Geologe VON MORLOT (1844) vermutete bereits, dass die nordischen Vergletscherungen das Erzgebirge in Sachsen erreicht haben könnten. Die Entdeckung der Gletscherschrammen auf triassischem Muschelkalk in Rüdersdorf bei Berlin durch TORRELL (1875) führte zur generellen Akzeptanz der Glazialtheorie in Deutschland. PENCK (1879) vermutete, dass Norddeutschland durch drei voneinander getrennte Vergletscherungen beeinflusst wurde. Die Kartierung der pleistozänen Ablagerungen durch den Preussischen Geologischen Dienst seit 1910 war ein Meilenstein für die Quartärstratigraphie, und die Begriffe „Elster“, „Saale“ und „Weichsel“ wurden in die wissenschaftliche Literatur eingeführt. Quartärgeologen wie L. SIEGERT, W. WEISSERMEL, K. KEILHACK, R. GRAHMANN und P. WOLDSTEDT beschrieben bereits Anfang des 20. Jahrhunderts fundamentale Zusammenhänge der Glazialgeschichte des nordmitteleuropäischen Tieflandes und ihre Korrelation mit fluvialen Prozessen. Die Quartärstratigraphie in Norddeutschland besitzt nicht zuletzt durch das dichte Netz an Bohrungen und durch die gut untersuchten Profilaufschlüsse in den Braunkohlentagebauen eine solide Basis. Von besonderer Bedeutung für die Stratigraphie ist in diesem Gebiet die Verzahnung von glaziärer und periglaziärer Fazies, d.h. die Beziehung zwischen Schotterterrassen, Moränenablagerungen und überdies zwischengeschalteten Interglazialsedimenten. In ihrer vertikalen Abfolge folgen sie in klassischer Weise dem stratigraphischen Grundgesetz.
description: research
Der kaltzeitliche Formenschatz im Cleurie-Tal (Südwestvogesen)
Creators: name: Wenzens, Gerd
Publisher: name: Geozon Science Media
Year: 1987

description: Kartierung und Aufschlußanalyse der glazialen und fluvioglazialen Formen und Sedimente im Cleurie-Tal lassen folgende Aussagen zur Vergletscherungsgeschichte dieses Raumes zu: Anhand der Kriterien Erhaltungszustand, Verwitterungsintensität bzw. Verfestigungsgrad, Höhenlage und Zusammensetzung können glaziale Ablagerungen aus drei verschiedenen Kaltzeiten nachgewiesen werden. Aufgrund der Eismächtigkeiten des Mosel- und Moselotte-Gletschers im Becken von Remiremont/St. Arne kann im Würm eine Moselotte-Diffluenzzunge allenfalls bis in das Gebiet südlich von le Tholy gereicht haben. Dies wird durch die maximale Höhenlage der Würmsedimente östlich von le Tholy bestätigt: Sie lassen als Ablagerungsmedium lediglich den Vologne-Gletscher sowie kleinere Seitengletscher zu. Die damalige Schneegrenze lag bei ca. 850 m. Die Wälle östlich von le Tholy sind fluvioglazialer bzw. lakustrischer Entstehung. Schmelzwässer aus dem Cellet-Tal wurden vom Vologne-Gletscher gestaut, so daß sich hier mächtige Deltasedimente ablagern konnten. Während einer Abschmelzphase des Vologne-Gletschers bildete sich hinter der Endmoräne von Bas Beillard das Delta von le Costet, dessen glazio-lakustrische Ablagerungen von proglazialen Sedimenten bedeckt wurden, die im Zusammenhang mit der Ausbildung der Endmoräne von Pré Chaussote entstanden.
description: research
Correlation of magnetic fabric and crystallographic preferred orientations of naturally deformed carbonate — mica rocks from the Alpi Apuane in Italy and the Damara Orogen in Namibia
Creators: name: Otto, Michael
name: Hirt, Ann M.
name: Leiss, Bernd
name: Schmidt, Volkmar
name: Walter, Jens M.
Publisher: name: Universitätsverlag Göttingen
Year: 2006

description: The anisotropy of magnetic susceptibility (AMS) is a time-efficient method to describe crystallographic preferred orientations of rocks and has been applied in a wide field of sedimentary, metamorphic and magmatic geology. The method, however, suffers from limitations which mainly result from the interference of diamagnetic, paramagnetic and ferromagnetic fabrics (de Wall 2005) — the term ferromagnetism is used in a wider sense here, including e.g. ferrimagnetism. The AMS is an integral parameter which describes a crystallographic preferred orientation as an ellipsoid. The quantitative correlation of the AMS with the crystallographic preferred orientations should help to allow a closer view at the applicability and the limitations of the AMS analysis (see also Schmidt et al. 2006 a, b)... The results of this study are based on a large variety of fabric types of carbonate-mica marbles and mylonites, i.e. varying mica content, grain sizes, grain shapes, types and intensities of the crystallographic preferred orientation. The presented first correlations of the AMS and CPO for the single mineral phases in general demonstrate a good matching. Regarding the comparison of texture types and the AMS, limitations are possible. While single c-axis maxima and girdle-like c-axis distributions can be also distinguished by the AMS, it is obvious that distinguishing between these types and the double c-axis type is not possible at the present stage.
description: conference
Optimal Asset Allocation with Asymptotic Criteria
Creators: name: Kargin, Vladislav
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optimization and Control (math.OC)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 91B28; 60J70

description: Assume (1) asset returns follow a stochastic multi-factor process with time-varying conditional expectations; (2) investments are linear functions of factors. This paper calculates asymptotic joint moments of the logarithm of investor's wealth and the factors. These formulas enable fast computation of a wide range of investment criteria. The results are illustrated by a numerical example that shows that the optimal portfolio rules are sensitive to the specification of the investment criterion.
description: 22 pages, 5 figures, forthcoming in International Journal of Theoretical and Applied Finance (IJTAF)
Alloxysta brachycera Hellen 1963
Creators: name: Ferrer-Suay, Mar
name: Selfa, Jesús
name: Villemant, Claire
name: Pujade-Villar, Juli
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Charipidae
Alloxysta
Alloxysta brachycera

description: Alloxysta brachycera Hellén, 1963
(Figs 2C; 3C)
 Alloxysta brachycera Hellén, 1963: 14.
MATERIAL EXAMINED. — (11♀). M09-BOR1400- T3 -M1: 4♀; M09-BOR1400- T5 -M1: 1♀; M09-BOR2000- T4 -M1: 2♀; M09-SES2000- T3 -M1: 1♀; M09-SES2000- T5 -M1: 1♀; M10- CAI2000- T1 -M1: 1♀; M10-CAI2000- T3 -M1: 1♀. Material deposited at MNHN, except for 5♀ deposited at UB.
DISTRIBUTION. — Previously known from Finland (Hellén 1963). First record from France.
HOSTS. — Unknown.
 DIAGNOSIS. — Alloxysta brachycera is characterized by: a completely open radial cell, 2.7 × longer than wide (Fig. 3C), pronotal carinae present, propodeal carinae absent, female antenna with rhinaria beginning from F4, F1 longer than pedicel and F2, F2 longer than F3, F3 shorter than F4 (Fig. 2C). Male unknown. Similar to Alloxysta nigrita (Thomson, 1862), but the two species can be differentiated by: F2 longer than F 3 in A. brachycera (Fig. 2C), whereas F2 is shorter than F 3 in A. nigrita (Fig. 2N); proportions of radial cell: 2.7 × longer than wide in A. brachycera (Fig. 3C), versus 2.9 × in A. nigrita (Fig. 3N).
description: Published as part of Ferrer-Suay, Mar, Selfa, Jesús, Villemant, Claire & Pujade-Villar, Juli, 2015, Charipinae Dalla Torre & Kieffer, 1910 (Hymenoptera: Cynipoidea: Figitidae) from the Mercantour National Park (Alpes-Maritimes, France), with descriptions of three new species, pp. 115-138 in Zoosystema 37 (1) on page 122, DOI: 10.5252/z2015n1a5, http://zenodo.org/record/4577554
Phase Diagram and Incommensurate Phases in Undoped Manganites
Creators: name: Salafranca, J.
name: Brey, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the existence of incommensurate phases in the phase diagram of the two orbital double exchange model coupled with Jahn-Teller phonons and with superexchange interactions. In agreement with experimental results, we find that undoped manganites $RMnO_3$ ($R$ being some rare earth element) show temperature induced commensurate-incommensurate phase transitions. In the incommensurate phase the magnetic wave vector varies with temperature. The incommensurate phase arises from the competition between the short range antiferromagnetic superexchange interaction and the long range ferromagnetic double exchange interaction.
Quark-Novae in the outskirts of galaxies: An explanation of the Fast Radio Burst phenomenon
Creators: name: Ouyed, Rachid
name: Leahy, Denis
name: Koning, Nico
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We show that old isolated neutron stars in groups and clusters of galaxies experiencing a Quark-Nova phase (QN: an explosive transition to a quark star) may be the source of FRBs. Each of the millions of fragments of the ultra-relativistic QN ejecta provides a collisionless plasma for which the ambient medium (galactic/halo, the intra-group/intra-cluster medium) acts as a relativistic plasma beam. The Buneman and the Weibel instabilities, successively induced by the beam in the fragment, generate particle bunching and observed coherent emission at GHz frequency with a corresponding fluence in the Jy ms range. The duration, frequency drift and the rate are in agreement with observed properties of FRBs. Repeats (on timescales of minutes to months) are due to seeing multiple fragments each beaming at a different direction and coming in at different times. Single (non-repeating) FRBs, occur when only emission from the primary fragment is within the detector's sensitivity. Key properties of FRB 121102 (its years of activity) and of FRB 180916.J0158+65 (its 16 day period) are recovered. The spatial and temporal coincidence between SGR 1935+2154 and FRB 200428 finds an explanation in our model. We give testable predictions.
description: MNRAS version (see https://academic.oup.com/mnras/article-abstract/500/4/4414/5979827?redirectedFrom=PDF). Converted to a main paper (first 9 pages) + supplementary material [a total of 50 pages including 16 tables and 11 figures]. The QN FRB simulator can be run online at: http://www.quarknova.ca/FRBSimulator/
title: The implications of improving the conservation value of field margins on crop production
Creators: name: Perry, Nicola Hazel
Publisher: name: The Open University
Year: 1998

description: The effect of field margin management on crop yield and weed biomass in the crop edge (headland) was investigated. Treatment did not have any significant effect on cereal yields, and taking a one metre strip out of crop production to establish a sterile, natural regeneration or sown strip, did not significantly reduce yields compared to cropping to the field edge. Conservation headlands generally contained greater amounts of weed biomass than fully sprayed headlands, but grain yields were not significantly reduced. Soil compaction affected yield in one of the field experiments, but not the other, where soil density values were fairly uniform. No relationship was found between fertiliser application and yield. In a survey of cereal headlands, distance from the field boundary was the most important factor affecting yield. Where yield increased with distance from the field boundary, there was a strong linear relationship with log distance (P<0.001). Weed dry matter was related to distance, and there was a significant relationship between weed dry matter and grain yield in the first year of the survey (p<0.001), but not in the second. Communities of herbaceous field margin species were established, and the effects of nitrogen fertiliser and sublethal glyphosate application were examined over two years. Cover abundance of grasses was greater than that of dicotyledonous species throughout. Bromus sterilis was the most abundant species in 1995, but by 1996 it had been replaced by Arrhenatherum elatius. Increasing fertiliser rate had a negative effect on total vegetation cover in 1995, due to individual plants lodging. During 1996, fertiliser application increased the cover abundance of the dominant perennial species A. e/atius (p<0.001), and also the annuals B. sterilis and Galium aparine (p<0.05). Sublethal doses of glyphosate significantly reduced total cover abundance (P<0.001), and had a greater effect on grasses compared to dicotyledonous species. Measurement of spray drift into a hedgerow showed that positioning the end of the tractormounted spray boom 2m or 6m away from the crop edge reduced drift into the hedgebottom compared with spraying up to the crop edge (P<0.001).
Calcium dependent astrocyte-neuron communication
Creators: name: Stringer, Charles Edward Alexander
Publisher: name: University of British Columbia
Year: 2011

description: The discovery of direct communication between astrocytes and neurons has changed the perception of astrocytes from passive support cells to active partners in information processing. Astrocytes express myriad neurotransmitter receptors and have been shown to release neurotransmitters, allowing these cells to respond and signal to adjacent neurons, respectively. Astrocytes can rapidly respond to neurotransmitters with a rise in [Ca²⁺]i and astrocyte neurotransmitter release has been shown to be calcium dependent. The purpose of this research was to investigate unknown aspects of astrocyteneuron communication with in situ calcium imaging to improve our understanding of how these cells interact functionally. The first objective of this research was to determine whether extracellular dopamine elicits astrocyte calcium transients in the prefrontal cortex (PFC). Astrocytes from this area express dopamine receptors and dopamine is an important neurotransmitter in the PFC. We found that astrocytes in PFC brain slices reliably respond to a high concentration of dopamine ([50μM]) with [Ca²⁺]i transients, however these responses were due to the activation of adrenoreceptors, not dopamine receptors. The inability of a lower concentration of dopamine ([10μM]) to elicit astrocyte [Ca²⁺]i transients questions the whether these cells can rapidly respond to PFC dopamine at physiological levels. The second objective of this research was to investigate the extent that calcium dependent glutamate release from astrocytes is able to influence neural activity. The best studied mechanism of astrocyte gliotransmitter release is the calcium dependent release of glutamate which has been demonstrated in single astrocytes in situ. We used the vasoactive peptide endothelin to preferentially elicit widespread astrocyte [Ca²⁺]i transients astrocytes from hippocampal brain slices to determine whether the widespread calcium rise in astrocytes was associated with a change in glutamate sensitive synaptic transmission. Despite eliciting nearly ubiquitous astrocyte calcium responses, we observed no change in glutamate sensitive synaptic transmission as measured by extracellular field recordings. These results question the ability of astrocytes to acutely influence synaptic transmission of a brain region. Our findings do not support an acute role of calcium dependent communication between astrocytes and neurons in rapid information processing in the systems we investigated.