cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
BEYOND RISK AVERSION: ECCENTRICITY IN WEIGHTED EXPECTED UTILITY
Creators: name: Hess, James D.
name: Holthausen Jr., Duncan M.
name: Hess, James D.
name: Holthausen Jr., Duncan M.
Publisher: name: Unknown
Year: 1988
Subjects: Research Methods/ Statistical Methods
Risk and Uncertainty

description: In recent survey articles Bell and Farquhar and Machina have brought to the attention of decision scientists an alternative to the expected utility model called weighted expected utility. Developed by MacCrimmon, Chew and Fishburn, this is the simplest alternative to expected utility that permits an interpretation and rationalization of Allais' famous paradox. This paper identifies the two crucial parameters of weighted expected utility -- risk aversion and eccentricity -- by studying demand for insurance. The first of these is a measure that generalizes the Arrow-Pratt risk aversion measure of expected utility. The other, which we call a measure of eccentricity, has no counterpart in expected utility theory. Risk aversion is a concept with which decision analysts are quite comfortable, but eccentricity is simultaneously a new concept and one whose predictions are more subtle than those of risk aversion. In essence, eccentricity is a measure of how susceptible the decision maker is to Allais' paradox or how much he differs from expected utility maximization. Together risk aversion and eccentricity completely determine weighted expected utility and provide insight into the behavior of decision makers under uncertainty, behavior that can be quite different from that predicted by expected utility. Explanations are given of the impact of increases in risk aversion.and eccentricity on demand for insurance. Perhaps the most striking difference is that when the decision maker is eccentric, the standard analysis of decision trees by "averaging out and folding back" provides suboptimal decisions and the losses are magnified as the degree of eccentricity grows.
Black Widow Pulsars: the Price of Promiscuity
Creators: name: King, A. R.
name: Davies, M. B.
name: Beer, M. E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The incidence of evaporating 'black widow' pulsars (BWPs) among all millisecond pulsars (MSPs) is far higher in globular clusters than in the field. This implies a special formation mechanism for them in clusters. Cluster MSPs in wide binaries with WD companions exchange them for turnoff-mass stars. These new companions eventually overflow their Roche lobes because of encounters and tides. The millisecond pulsars eject the overflowing gas from the binary, giving mass loss on the binary evolution timescale. The systems are only observable as BWPs at epochs where this evolution is slow, making the mass loss transparent and the lifetime long. This explains why observed BWPs have low-mass companions. We suggest that at least some field BWPs were ejected from globular clusters or entered the field population when the cluster itself was disrupted.
description: 6 pages, 2 figures, MNRAS in press
Periodic bursts of Star Formation in Irregular Galaxies
Creators: name: Pelupessy, F. I.
name: van der Werf, P. P.
name: Icke, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present N-body/SPH simulations of the evolution of an isolated dwarf galaxy including a detailed model for the ISM, star formation and stellar feedback. Depending on the strength of the feedback, the modelled dwarf galaxy shows periodic or quasi-periodic bursts of star formation of moderate strength. The period of the variations is related to the dynamical timescale, of the order of $1.5~10^8$ yr. We show that the results of these simulations are in good agreement with recent detailed observations of dwarf irregulars (dIrr) and that the peculiar kinematic and morphological properties of these objects,as revealed by high resolution HI studies, are fully reproduced. We discuss these results in the context of recent surveys of dwarf galaxies and point out that if the star formation pattern of our model galaxy is typical for dwarf irregulars this could explain the scatter of observed properties of dwarf galaxies. Specifically, we show that the time sampled distribution of the ratio between the instanteneous star formation rate (SFR) and the mean SFR is similar to that distribution in observed sample of dwarf galaxies.
description: 11 pages, 6 figures, accepted for A&A
Gnaphosa badia
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Gnaphosa
Gnaphosa badia

description: Gnaphosa badia (L. Koch, 1866)
NEW DATA. — La Thuile: Comba Thuilette, 2000 m, rocky land, 10.VII.2012, 1♀, leg. Paschetta, Giuliano, Mammola & Marguerettaz; Ayas: Antagnod, 1970-2070 m, ski pistes, leg. Franco & Negro.
 LITERATURE. — Calloni 1889; Pavesi 1904; di Caporiacco 1928; Grimm 1985; [Isaia 2005]; De Angelis & Fantoni 2008; Negro et al. 2009, 2013; Gobbi et al. 2010; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Ski pistes, coniferous forests, rocky lands.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 67, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Einfluss der Wiedervernässung auf den Nährstoffhaushalt degradierter Niedermoore
Effect of re-wetting on nutrient dynamics of degraded fens
Creators: name: Velty, Silke
name: Jordan, Sabine
name: Zeitz, Jutta
Publisher: name: FID GEO
Year: 2008

description: In memoriam Dr Silke Velty (1973 – 2007) - Summary of her PhD thesis and obituary
description: In memoriam Dr. Silke Velty (1973 – 2007) - Zusammenfassung ihrer Dissertation und Nachruf
description: DFG, SUB Göttingen, DGMT
description: research
Interaction energies of monosubstituted benzene dimers via nonlocal density functional theory
Creators: name: Thonhauser, T.
name: Puzder, Aaron
name: Langreth, David C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present density-functional calculations for the interaction energy of monosubstituted benzene dimers. Our approach utilizes a recently developed fully nonlocal correlation energy functional, which has been applied to the pure benzene dimer and several other systems with promising results. The interaction energy as a function of monomer distance was calculated for four different substituents in a sandwich and two T-shaped configurations. In addition, we considered two methods for dealing with exchange, namely using the revPBE generalized gradient functional as well as full Hartree-Fock. Our results are compared with other methods, such as Moller-Plesset and coupled-cluster calculations, thereby establishing the usefulness of our approach. Since our density-functional based method is considerably faster than other standard methods, it provides a computational inexpensive alternative, which is of particular interest for larger systems where standard calculations are too expensive or infeasible.
description: submitted to J. Chem. Phys
THE MEAN AND VARIANCE OF THE MEAN-VARIANCE DECISION RULE
Creators: name: Chalfant, James A.
name: Callender, Robert N.
name: Subramanian, Shankar
name: Chalfant, James A.
name: Callender, Robert N.
name: Subramanian, Shankar
Publisher: name: Unknown
Year: 1988
Subjects: Research Methods/ Statistical Methods
Risk and Uncertainty

description: The widely used mean-variance approach to decisions under uncertainty requires estimates df the parameters of the j?int distribution of returns. When optimal behavior is determined using estimates, rather than the true values, the decision is a random variable. We examine the usefulness of mean-variance analysis by deriving the bias and variance-covariance matrix for the decision.vector. The latter shows that decisions based on estimated parameters can have a large variance around the true optimum. The results show that optimal decisions can differ substantially from those based on mean-variance analysis.
Gravitation, the 'Dark Matter' Effect and the Fine Structure Constant
Creators: name: Cahill, Reginald T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Gravitational anomalies such as the mine/borehole g anomaly, the near-flatness of the spiral galaxy rotation-velocity curves, currently interpreted as a `dark matter' effect, the absence of that effect in ordinary elliptical galaxies, and the ongoing problems in accurately determining Newton's gravitational constant G_N are explained by a generalisation of the Newtonian theory of gravity to a fluid-flow formalism with one new dimensionless constant. By analysing the borehole data this constant is shown to be the fine structure constant alpha=1/137. The spiral galaxy `dark matter' effect and the globular cluster `black hole' masses are then correctly predicted. This formalism also explains the cause of the long-standing uncertainties in G_N and leads to the introduction of a fundamental gravitational constant G not = G_N with value G=(6.6526 +/- 0.013)x 10^-11 m^3s^{-2}kg^{-1}. The occurrence of alpha implies that space has a quantum structure, and we have the first evidence of quantum gravity effects.
description: 21 pages, 4 eps figures. Extended published version
Lockerbraunerden, periglaziale Solifluktionsdecken und holozäne Kolluvien im Oberwald (Hoher Vogelsberg)
Creators: name: Semmel, Arno
Publisher: name: Geozon Science Media
Year: 1998

description: Der Auffassung, das Substrat der Lockerbraunerde auf dem Oberwald des Vogelsberges sei ausschließlich ein äolisches Sediment der Jüngeren Tundrenzeit, wird widersprochen. Verschiedene Befunde, vor allem 14C-Datierungen, lassen vielmehr den Schluß zu, daß große Teile des Substrates vieler Lockerbraunerden holozäne anthropogene Kolluvien sind. Bekräftigt wird dagegen der Befund gleichen (jungtundrenzeitlichen) Alters für Lockerbraunerde-Substrat und Deckschutt (Decksediment).
description: research
HST/STIS transmission spectrum of the ultra-hot Jupiter WASP-76 b confirms the presence of sodium in its atmosphere
Creators: name: von Essen, C.
name: Mallonn, M.
name: Hermansen, S.
name: Nixon, M. C.
name: Madhusudhan, N.
name: Kjeldsen, H.
name: Tautvaišienė, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an atmospheric transmission spectrum of the ultra-hot Jupiter WASP-76 b by analyzing archival data obtained with the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope (HST). The dataset spans three transits, two with a wavelength coverage between 2900 and 5700 Armstrong, and the third one between 5250 and 10300 Armstrong. From the one-dimensional, time dependent spectra we constructed white and chromatic light curves, the latter with typical integration band widths of ~200 Armstrong. We computed the wavelength dependent planet-to-star radii ratios taking into consideration WASP-76's companion. The resulting transmission spectrum of WASP-76 b is dominated by a spectral slope of increasing opacity towards shorter wavelengths of amplitude of about three scale heights under the assumption of planetary equilibrium temperature. If the slope is caused by Rayleigh scattering, we derive a lower limit to the temperature of ~870 K. Following-up on previous detection of atomic sodium derived from high resolution spectra, we re-analyzed HST data using narrower bands centered around sodium. From an atmospheric retrieval of this transmission spectrum, we report evidence of sodium at 2.9-sigma significance. In this case, the retrieved temperature at the top of the atmosphere (10-5 bar) is 2300 +412-392 K. We also find marginal evidence for titanium hydride. However, additional high resolution ground-based data are required to confirm this discovery.
description: 14 pages, 10 figures
Glueball production in radiative J/psi, Upsilon decays
Creators: name: Melis, M.
name: Murgia, F.
name: Parisi, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using a bound-state model of weakly bound gluons for glueballs made of two gluons and a natural generalization of the perturbative QCD formalism for exclusive hadronic processes, we present results for glueball production in radiative J/psi, Upsilon decays into several possible glueball states, including L \not= 0 ones. We perform a detailed phenomenological analysis, presenting results for the more favored experimental candidates and for decay angular distributions.
description: RevTeX4, 26 pages, 11 eps figures
Die Fortschritte der Radiokarbon-Methode 1952—1956
Creators: name: Gross, Hugo
Publisher: name: Geozon Science Media
Year: 1957

description: 1946 wies W. F. Libby darauf hin, daß die durch die Höhenstrahlung gebildeten Neutronen Stickstoff-Atome der Atmosphäre in radioaktiven Kohlenstoff mit dem gleichen Atomgewicht, also in C14, verwandeln müssen. 1947 gelang es W. F. Libby mit seinen Mitarbeitern, in der Natur C14 experimentell nachzuweisen; in den folgenden Jahren entwickelten sie die Cl4-Datierungsmethode und gaben 1950 die ersten C14-Daten bekannt. Die folgenden 6 Jahre haben mit verbesserten Verfahren in vielen Laboratorien den Beweis erbracht, daß die Radiokarbon-Methode vor allem für die spätquartäre Geologie, Paläontologie, Paläoklimatologie und Vor- und Frühgeschichte von allergrößter Bedeutung ist. Voraussetzung ist, daß einwandfreie Proben, die möglichst von einem Quartärgeologen bzw. Prähistoriker mit genauer Kenntnis der zu beachtenden Kautelen zu entnehmen sind, für die C14-Datierung beschafft werden. Mit einer Reichweite von 40 000 bis 50 000 Jahren ermöglicht es diese Methode, die Chronologie der Letzten Eiszeit und damit auch die Geschichte der ältesten (jungpaläolithischen) Kulturentwicklung des Homo sapiens auf eine sichere Grundlage zu stellen. Die C14-Chronologie der Letzten Eiszeit weicht von der auf der Sonnenstrahlungskurve basierenden so sehr ab, daß letztere aufgegeben werden muß. Die C14-Methode hat aber die Richtigkeit der Warwengeochronologie (was die Größenordnung betrifft) zunächst für die letzten 11000 Jahre bestätigt.
description: research
Using Fitness Dependent Optimizer for Training Multi-layer Perceptron
Creators: name: Abbas, Dosti Kh.
name: Rashid, Tarik A.
name: Bacanin, Karmand H. Abdallaand Nebojsa
name: Alsadoon, Abeer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: This study presents a novel training algorithm depending upon the recently proposed Fitness Dependent Optimizer (FDO). The stability of this algorithm has been verified and performance-proofed in both the exploration and exploitation stages using some standard measurements. This influenced our target to gauge the performance of the algorithm in training multilayer perceptron neural networks (MLP). This study combines FDO with MLP (codename FDO-MLP) for optimizing weights and biases to predict outcomes of students. This study can improve the learning system in terms of the educational background of students besides increasing their achievements. The experimental results of this approach are affirmed by comparing with the Back-Propagation algorithm (BP) and some evolutionary models such as FDO with cascade MLP (FDO-CMLP), Grey Wolf Optimizer (GWO) combined with MLP (GWO-MLP), modified GWO combined with MLP (MGWO-MLP), GWO with cascade MLP (GWO-CMLP), and modified GWO with cascade MLP (MGWO-CMLP). The qualitative and quantitative results prove that the proposed approach using FDO as a trainer can outperform the other approaches using different trainers on the dataset in terms of convergence speed and local optima avoidance. The proposed FDO-MLP approach classifies with a rate of 0.97.
description: 12 pages
Gnaphosa bicolor
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Gnaphosa
Gnaphosa bicolor

description: Gnaphosa bicolor (Hahn, 1833)
NEW DATA. — Arvier: Lago di Lolair, 1175 m, broadleaved forest, 4-25.VII.2012, 1♀, leg. Negro (MRSN-VDA).
LITERATURE. — De Angelis & Fantoni 2008; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Broadleaved forests.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 67, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Paläopedologische Klimazeugen zur Untergliederung des Rißeiszeiten-Komplexes im Rheingletschergebiet
Creators: name: Bibus, Erhard
name: Kösel, Michael
Publisher: name: Geozon Science Media
Year: 1996

description: Die von Penck & Brückner ( 1901/1909) als Einheit angesehene Rißeiszeit wurde im Rheingletschergebiet durch Schreiner (1989, 1992) mit dem Jungriß, dem Mittleren Riß (Doppelwall-Riß) und dem Älteren Riß (Zungenriß) in drei morphostratigraphische Einheiten unterteilt. In der vorliegenden Untersuchung wurde vorwiegend aufgrund paläopedologischer Kriterien der Frage nachgegangen, ob zwischen den einzelnen Einheiten Abschnitte mit interglazialen Verwitterungsverhältnissen lagen. Insgesamt konnten mindestens drei warmzeitliche Abschnitte im Rißkomplex nachgewiesen werden, wobei der Bodenrest von Bittelschieß nur in tiefen Verwitterungstaschen erhalten geblieben ist. Zwischen Jung- und Mittelriß konnte der sichere Nachweis für eine warmzeitliche Bodenbildung an mehreren Stellen geführt werden. Zwischen Mittel- und Altriß liegt ein zweigeteiltes Interglazial, wobei beim gegenwärtigen Stand nicht mit Sicherheit entschieden weiden kann, daß der durch sandige Kiese überlieferte Zwischenabschnitt kaltzeitlich war. Der ältere Abschnitt dieses Doppelinterglazials führt in den Tonen von Bittelschieß mit Pterocarya und Buxus stark thermophile Elemente. Dieses innerrißzeitliche Interglazial entspricht möglicherweise dem Holstein-Interglazial. Im Vergleich mit dem Periglazialraum kann nunmehr mit Sicherheit gesagt werden, daß der als Rißlöß angesprochene vorletztkaltzeitliche Löß im alpinen Gliederungsschema zeitlich nur dem Jungriß entspricht.
description: research
Théorie ergodique et géométrie arithmétique
Creators: name: Ullmo, Emmanuel
Publisher: name: arXiv
Year: 2003
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F32, 11G10, 11G15, 11G40, 22D40, 22E40

description: We will present several examples in which ideas from ergodic theory can be useful to study some problems in arithmetic and algebraic geometry.
THROUGHPUT AND COSTING OF SOFT FRUIT PROCESSING
Creators: name: Michelini, Stan
name: Michelini, Stan
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: West Indian Cherry (Malpighia glabra) fruits were harvested, cleaned, and either pressed immediately or frozen. Fruits were either crushed, or thawed and crushed in a one-horsepower stainless steel grape crusher at a rate of 20 kg per minute. The crushed pulp was top-loaded into a 70 1. capacity bladder press, which utilizes water capacity at 3 atm. to expand the bladder, thereby squeezing the pulp. The press capacity is about 230 kg of pulp with a load and press cycle taking 25 minutes. Juice recovery was approximately 65% for fresh fruits and 70% for frozen fruits. Juice was filtered and introduced into either new 2 1. plastic drink bottles or 19 1. lined pails and frozen. A three-person crew was able to complete a crushing, pressing, and filling cycle which produced ISO kg juice in 40 minutes, for a direct labour cost of U.S.5.05 per kg. Press equipment, containers, freezing and building costs are discussed.
Seeking Sustainability and Legitimacy : An Evaluation of Literature and Application to the African Education Program and Amos Youth Center
Creators: name: Savarit-Consenza, Julie-Ann
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: Description to be added
Gnaphosa montana
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Gnaphosa
Gnaphosa montana

description: Gnaphosa montana (L. Koch, 1866)
NEW DATA. — Arvier: Lago di Lolair, 1175 m, broadleaved forest, 24.V-13.VI.2012, 1 ♂, leg. Negro (MRSN-VDA); Saint Denis: Brison-Cly, 1000 m, dry meadow, 24.V-13.VI.2012, 2 ♂, leg. Negro (MNHN).
LITERATURE. — Di Caporiacco 1928; [Isaia 2005].
CHOROTYPE. — SIE.
MACROHABITAT. — Broadleaved forests, shrublands.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 67, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
A GLANCE AT THE PAPAYA INDUSTRY IN PUERTO RICO: PRESENT SITUATION AND OUTLOOK
Creators: name: Sotomayor-Ramírez, A.
name: Sotomayor-Ramírez, A.
Publisher: name: Unknown
Year: 1988
Subjects: Agribusiness
Crop Production/Industries

description: Tropical or exotic fruits are in constant demand within and outside the Caribbean. Among them, papaya (Carica papaya) offers great economic potential. The demand for papaya is the resultant of the recognition of its nutritional value and of consumer's preference attributable to changes in dietary habits. Papayas are cultivated intensively in Puerto Rico far local consunmption as ii#ell as for export to selected markets. Yields per hectare of papaya are very high if intensively managed. Economic returns are attractive for investors. Significant improvements can be achieved in the papaya industry with sound and realistic planning from preplanting to marketing coupled with the use of high-yielding cultivars and appropriate management technologies. This paper discusses the current situation and suggests recommendations to strengthen production of papaya in Puerto Rico. These could be useful to other countries of the Caribbean Basin.
Über die Anwendung der Dendrochronologie in der Moorforschung am Beispiel subfossiler Eichenstämme aus niedersächsischen Mooren
Creators: name: Delorme, Axel
name: Leuschner, Hanns-Hubert
name: Höfle, Hans-Christoph
name: Tüxen, Jes
Publisher: name: Geozon Science Media
Year: 1981

description: Die jahrringchronologische Auswertung subfossiler Eichenstämme aus drei niedersächsischen Mooren führt zum Nachweis eines im wesentlichen zwischen 350 und 150 v. Chr. an den verschiedenen Fundstellen gleichzeitig erfolgten Absterbens von Eichenbeständen. Es ergeben sich Hinweise auf eine Klimaschwankung in dieser Zeit. Die Bildungsgeschichte des Hochmoores bei Sieden läßt sich durch die Aufnahme von Baumfunden in situ in Verbindung mit den zugehörigen Moorprofilen rekonstruieren. Das norddeutsche Jahrringmaterial kann mit der Eisenzeitlichen Auwaldeichenchronologie synchronisiert werden und verlängert diese um gut 200 Jahre zum Älteren.
description: research
A New Algorithm for Pyramidal Clipping of Line Segments in E3
Creators: name: Skala, Vaclav
name: Bui, Duc Huy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences
subject: I.3
subject: 68U05

description: A new algorithm for clipping a line segment against a pyramid in E3 is presented. This algorithm avoids computation of intersection points which are not end-points of the output line segment. It also allows solving all cases more effectively. The performance of this algorithm is shown to be consistently better than existing algorithms, including the Cohen-Sutherland, Liang-Barsky and Cyrus-Beck algorithms.
Local u'g'r'i'z' Standard Stars in the Chandra Deep Field-South
Creators: name: Smith, J. Allyn
name: Tucker, Douglas L.
name: Allam, Sahar S.
name: Rodgers, Christopher T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Because several observing programs are underway in various spectral regimes to explore the Chandra Deep Field South (CDF-S), the value of local photometric standards is obvious. As part of an NOAO Surveys Program to establish u'g'r'i'z' standard stars in the southern hemisphere, we have observed the central region of the CDF-S to create local standards for use by other investigators using these filters. As a courtesy, we present the CDF-S standards to the public now, although the main program will not finish until mid-2005.
description: Accepted by AJ (scheduled for October 2003 issue). 26 pages, 5 tables, 5 figures. High resolution version of Figure 7 available at http://home.fnal.gov/~dtucker/Southern_ugriz/index.html
ALGAL BIOFERTILISERS FOR RICE IN JAMAICA
Creators: name: Boyd, F.
name: Devi Prasad, P.V.
name: Boyd, F.
name: Devi Prasad, P.V.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Biofertiliser
subject: Biological nitrogen fixation
subject: Blue-green algae
subject: Rice

description: Two species of nitrogen-fixing blue-green algae (cyanobacteria) have been isolated from local freshwater sources and fields. These were Anabaena variabilis and Nostoc sp. Experiments were carried out to propagate these on a large scale under field conditions, suitable for the use of small farmers. Effects of these algae as a substitute/supplement to the commercial nitrogen fertiliser £or the variety CICA 8 have been investigated under two soil types: maverley loam and clay loam. Blue-green algae alone without any added chemical fertiliser increased the rice yields between 15 and 25% over the control without any fertiliser. When used as a supplement along with fertilizer, the blue-greens still increased yields over their respective controls with fertiliser. Protein levels of the grains increased with the use of blue-greens similar to that of fertiliser. However, soluble carbohydrates did not show much differences.
Haplodrassus umbratilis
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Haplodrassus
Haplodrassus umbratilis

description: Haplodrassus umbratilis (L. Koch, 1866)
 LITERATURE. — Di Caporiacco 1928; [Isaia 2005]; Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — CAE.
MACROHABITAT. — Coniferous forests.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 69, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Reissner Nordstr$\ddot{o}$m solutions and Energy in teleparallel theory
Creators: name: Nashed, Gamal G. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give three different spherically symmetric spacetimes for the coupled gravitational and electromagnetic fields with charged source in the tetrad theory of gravitation. One of these, contains an arbitrary function and generates the others. These spacetimes give the Reissner Nordstr$\ddot{o}$m metric black hole. We then, calculated the energy associated with these spacetimes using the superpotential method. We find that unless the time-space components of the tetrad field go to zero faster than ${1/\sqrt{r}}$ at infinity, one gets different results for the energy.
description: 12 pages tex file
Two New Algorithms for Line Clipping in E2 and Their Comparison
Creators: name: Skala, Vaclav
name: Bui, Duc Huy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences
subject: I.3
subject: 68U05

description: Many algorithms for clipping a line by a rectangular area or a convex polygon in E2 or by a non-convex or convex polyhedron in E3 have been published. The line segment clipping by the rectangular window in E2 is often restricted to the use of the Cohen-Sutherland (CS) algorithm or its modifications based on some presumptions like small clipping window or more sophisticated coding technique, etc. The line clipping problem solution is a bottleneck of many packages and applications and, therefore, it would be desirable to use the fastest algorithm even though it is more complex.
Bemerkungen zu „Das Alter des Schädels von Rhünda. III“
Creators: name: Heberer, Gerhard
name: Kurth, Gottfried
Publisher: name: Geozon Science Media
Year: 1963

description: Die endgültige Freipräpapierung und Zusammensetzung des Rhündaschädels ergab einen Homo sapiens ohne irgendwelche Sonderzüge, der sowohl in der 2. Hälfte der Würmkaltzeit wie der Nacheiszeit untergebracht werden könnte. Danach ist auch das Problem der unsicheren Datierung anthropologisch kaum noch von Bedeutung.
description: research
Line Clipping in E3 with Expected Complexity O(1)
Creators: name: Skala, Vaclav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: I.3
subject: 68U05

description: A new line clipping algorithm against convex polyhedron in E3 with an expected complexity O(1) is presented. The suggested approach is based on two orthogonal projections to E2 co-ordinate system and on pre-processing of the given polyhedron. The pre-processing enables to speed up solution significantly. The proposed method is convenient for those applications when many lines are clipped against constant convex polyhedron. Theoretical considerations and experimental results are also presented.
description: arXiv admin note: text overlap with arXiv:2111.07987
Steady Rayleigh--Bénard convection between no-slip boundaries
Creators: name: Wen, Baole
name: Goluskin, David
name: Doering, Charles R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The central open question about Rayleigh--Bénard convection -- buoyancy-driven flow in a fluid layer heated from below and cooled from above -- is how vertical heat flux depends on the imposed temperature gradient in the strongly nonlinear regime where the flows are typically turbulent. The quantitative challenge is to determine how the Nusselt number $Nu$ depends on the Rayleigh number $Ra$ in the $Ra\to\infty$ limit for fluids of fixed finite Prandtl number $Pr$ in fixed spatial domains. Laboratory experiments, numerical simulations, and analysis of Rayleigh's mathematical model have yet to rule out either of the proposed `classical' $Nu \sim Ra^{1/3}$ or `ultimate' $Nu \sim Ra^{1/2}$ asymptotic scaling theories. Among the many solutions of the equations of motion at high $Ra$ are steady convection rolls that are dynamically unstable but share features of the turbulent attractor. We have computed these steady solutions for $Ra$ up to $10^{14}$ with $Pr=1$ and various horizontal periods. By choosing the horizontal period of these rolls at each $Ra$ to maximize $Nu$, we find that steady convection rolls achieve classical asymptotic scaling. Moreover, they transport more heat than turbulent convection in experiments or simulations at comparable parameters. If heat transport in turbulent convection continues to be dominated by heat transport in steady rolls as $Ra\to\infty$, it cannot achieve the ultimate scaling.
THE VALUE OF SEWAGE SLUDGE FOR TANNIA AND YAM PRODUCTION RESEARCH AND APPLICATIONS
Creators: name: Clairon, M.
name: Degras, L.
name: Hountondji, A.
name: Faderin, B.
name: Clairon, M.
name: Degras, L.
name: Hountondji, A.
name: Faderin, B.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Low soil organic matter content appears to be one of the main causes of tannia and yam problems in the West Indies. Among other methods of organic fertilization, the use of sewage sludge seems of most interest. Experiments conducted by INRA (Guadeloupe) establish its value against Tannia disease, for vegetative propagation and for flowering intensity of yams.
Neuere Funde des Weichselspätglazials in Schleswig-Holstein
Creators: name: Bock, Wolfram
name: Menke, Burchard
name: Strehl, Eberhard
name: Ziemus, Holger
Publisher: name: Geozon Science Media
Year: 1985

description: Es werden drei Fundplätze weichselspätglazialer organogener Ablagerungen (insbesondere des Alleröd-Interstadials) neu beschrieben. Daran anschließend wird die Stratigraphie des Weichselspätglazials für Schleswig-Holstein erörtert. Das Bölling-Interstadial zeichnet sich pollenfloristisch durch ein kräftiges (Baum-)Birkenmaximum aus. Unter dem Bölling-Interstadial existiert ein schwach (durch Zwergbirke und Sanddorn) gekennzeichnetes „Meiendorf-Interstadial".
description: research
Gnaphosa petrobia L. Koch 1872
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Gnaphosa
Gnaphosa petrobia

description: Gnaphosa petrobia L. Koch, 1872
 LITERATURE. — Calloni 1889; Pavesi 1904; di Caporiacco 1928; [Isaia 2005]; Negro et al. 2010, 2013; [Rossi & Bosio 2012].
CHOROTYPE. — SEU.
MACROHABITAT. — Alpine prairies, ski pistes.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 68, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Is Li$_2$Pd$_3$B a self-doped hole superconductor ?
Creators: name: Sardar, Manas
name: Sa, Debanand
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose that the electrons responsible for superconductivity in Li2Pd3B come from the palladium 4d-electrons. So, its electronic properties are likely to be dominated by strong electronic correlations. The basic unit in this material are Pd$_6$B octahedra which share vertices to form a 3-dimensional network. Due to the highly distorted nature of the Pd$_6$B octahedron, one far stretched Pd atom per octahedra becomes almost inactive for electronic conduction. Thus, the material escapes the fate of becoming a half- filled insulating Mott antiferromagnet by hiding extra charges at these inactive Pd sites and becomes a self-doped correlated metal. We propose a 3-dimensional single band t-J model which could be the correct minimal model for this material.
description: 4 pages Revtex, 2 figures included in the text, some typos corrected, some text and references added
True Women, New Women, and Civilizers in the American West : White women teachers and matrons in Bureau of Indian Affairs schools, 1880-1930 Alise Smith History Major Seminar HIST-481 Undergraduate History Thesis May 1,
Creators: name: Smith, Alise
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3904
subject: Specialist studies in education
classificationCode: 4303
subject: Historical studies

description: Description to be added
Transgression und Umlagerung im Gebiet des Helgoland-Riffs
Creators: name: Wunderlich, Friedrich
Publisher: name: Geozon Science Media
Year: 1980

description: Im Gebiet des Helgoland-Riffs (pleistozänes Reliktmaterial) wurden Längs- und Querprofile mit Sedimentechograph und Side-Scan gefahren. Die Profile wurden abgegriffen, abgebohrt und abgedredgt. Einer meist nur geringmächtigen rezenten Deckschicht sind mit einer häufig scharf ausgeprägten Erosionsdiskordanz subrezente und fossile Sedimente untergelagert. Es wurden marine Fazies, Watten- und Brackwasserfazies sowie Torfe, Schmelzwassersande und Pleistozän (Geschiebematerial) angetroffen. Das Untersuchungsgebiet unterliegt z. Z. noch der Erosion. Bei Sturm wird stark umgelagert, grober Sand ist in vielen Fällen wohl als „residual concentration" anzusehen. Aber auch Schlicklagen von mehr als 10 cm Mächtigkeit werden rezent in die Oberflächenschichten eingeschaltet.
description: research
DEVELOPMENT OF A LEGUME INOCULANT PROGRAMME IN JAMAICA
Creators: name: McLaughlin, W.
name: Gordon, L.
name: McLaughlin, W.
name: Gordon, L.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Inoculant
subject: Rhizobium sp
subject: Nitrogen fixation

description: In Jamaican soils, the indigenous population of rhizobia are low and are generally ineffective. This usually results in poor n o d u l a t ino of important grain legumes such as red pea (Phaseolus vulgaris) and cowpea (Vigna unguiculata), thus depriving the plant of needed nitrogen. A legume Inoculant project has been Initiated by the Scientific Research Council (SPC) which is aimed at producing good quality peat based inoculants to improve the yields of red pea and other legume crops, Rhizobium phaseoli strains obtained from CIAT and indigenous isolates were screened for their nitrogen fixing ability on red pea, The ability of selected rhizobia to survive in peat and to form effective nodules on the host plant under Sterile conditions after prolonged storage at two temperatures were also examined. Results indicate that R, phaseoli strains obtained from CIAT were better suited than Indigenous isolates for uses as inoculants , Inoculants had >10 7 rhizobia per g peat up to six (6) months storage at 30°C and 8°C and were capable of forming effective nodules on red pea under sterile conditions
Selecting Energy Efficient Inputs using Graph Structure
Creators: name: Klickstein, Isaac
name: Sorrentino, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Selecting appropriate inputs for systems described by complex networks is an important but difficult problem that largely remains open in the field of control of networks. Recent work has proposed two methods for energy efficient input selection; a gradient based heuristic and a greedy approximation algorithm. We propose here an alternative method for input selection based on the analytic solution of the controllability Gramian of the `balloon graph', a special model graph that captures the role of both \emph{distance} and \emph{redundant paths} between a driver node and a target node. The method presented is especially applicable for large networks where one is interested in controlling only a small number of outputs, or target nodes, for which current methods may not be practical because they require computing a typically very ill-conditioned matrix, called the controllability Gramian. Our method produces comparable results to the previous methods while being more computational efficient.
description: Accepted for publication in the International Journal of Control
SAMPLING AND ANALYSIS OF JAMAICAN SOILS
Creators: name: Robotham, H.
name: Rattray, V.
name: Thompson, C.
name: Robotham, H.
name: Rattray, V.
name: Thompson, C.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: A concise discussion of the analytical techniques, Instrumental Neutron Activation Analysis and X-Ray Fluorescence as applied at the Centre for Nuclear Sciences, is given. A flowchart of the procedure for soil sample collection and preparation is also presented along with a discussion of the programme of geochemical mapping.
Diophantine methods for exponential sums, and exponential sums for Diophantine problems
Creators: name: Wooley, Trevor D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11P55, 11L07, 11P05, 11D72, 14G05

description: Recent developments in the theory and application of the Hardy-Littlewood method are discussed, concentrating on aspects associated with diagonal diophantine problems. Recent efficient differencing methods for estimating mean values of exponential sums are described first, concentrating on developments involving smooth Weyl sums. Next, arithmetic variants of classical inequalities of Bessel and Cauchy-Schwarz are discussed. Finally, some emerging connections between the circle method and arithmetic geometry are mentioned.
Medical Isotope Production with the IsoDAR Cyclotron
Creators: name: Alonso, Jose R.
name: Barlow, Roger
name: Conrad, Janet M.
name: Waites, Loyd Hoyt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Authors describe technical advances that will allow the IsoDAR cyclotron -- being developed for neutrino physics research -- to produce medical isotopes more efficiently than existing cyclotrons can.
description: 3 pages 1 table
PHYSICO-CHEMICAL AND PHYSICAL PROPERTIES OF HALLOYSITE RICH SOILS IN GUADELOUPE
Creators: name: Oort, Folkert Van
name: Dorel, Marc
name: Oort, Folkert Van
name: Dorel, Marc
Publisher: name: Unknown
Year: 1988
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Halloysite
subject: Clay soils
subject: Physico-chemical soil behaviour
subject: Physical soil behaviour

description: In Guadeloupe, under moderate humid climatic conditions (1800 - 3000mm.), hydrolysis of young andesitic parent rock lead to the pedogenesis of 1:1 lattice clay (halloysite) rich soils (Rusty brown soils). But in the old, highly weathered north-eastern part of the island, covered by ferrallitic soils, halloysite equally appears to be the major mineral soil constituent. For the latter soils, in addition to the dominant 1:1 lattice clay, the presence of accessory 2:1 clay minerals has been noted. In these highly impoverished soils, the presence of such 2:1 minerals causes an important variability of physico-chemical properties, in particular the cation exchange properties and the occurence of exchangeable aluminium. Soil water properties of halloysite rich soils show remarkable differences with regard to water retention, total porosity and shrinkage. In addition to their minera1ogica1 nature, the morphology and size of the halloysite particles, as well as their spatial arrangement seem to play a leading part with regard to the soil's physical behaviour.
Dust during the Reionization
Creators: name: Elfgren, Erik
name: Desert, F. -Xavier
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The possibility that population III stars have reionized the Universe at redshifts greater than 6 has recently gained momentum with WMAP polarization results. Here we analyse the role of early dust produced by these stars and ejected into the intergalactic medium. We show that this dust, heated by the radiation from the same population III stars, produces a submillimetre excess. The electromagnetic spectrum of this excess could account for a significant fraction of the FIRAS (Far Infrared Absolute Spectrophotometer) cosmic far infrared background above 700 micron. This spectrum, a primary anisotropy ($ΔT$) spectrum times the $ν^2$ dust emissivity law, peaking in the submillimetre domain around 750 micron, is generic and does not depend on other detailed dust properties. Arcminute--scale anisotropies, coming from inhomogeneities in this early dust, could be detected by future submillimetre experiments such as Planck HFI.
description: 6 pages, 8 figures, accepted by A&A; clarifications made, typos fixed, results more exactly calculated
Haplodrassus aenus Thaler, Ayas 1984
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Haplodrassus
Haplodrassus aenus

description: Haplodrassus aenus Thaler, 1984
NEW DATA. — Ayas: Antagnod, 1970-2070 m, ski pistes, 2007, leg. Franco & Negro.
 LITERATURE. — Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — ALP.
MACROHABITAT. — Ski pistes.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 68, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Ein Beitrag zur Gliederung der eiszeitlichen Ablagerungen im Trauntal bei Wels/Oberösterreich
Creators: name: Metzger, Kurt
Publisher: name: Geozon Science Media
Year: 1974

description: Mit dem Beitrag soll gezeigt werden, daß es mit Hilfe geeigneter physikalisch-chemischer Untersuchungen im Labor und im Gelände möglich ist, über die Feldbefunde hinaus, Aussagen über Aufbau und Genese komplexer Profile zu machen. Der Lehmkomplex der Tongrube der Ziegelei Würzburger, Wels, kann nach den Untersuchungsergebnissen nicht als einheitliche Sedimentation aufgefaßt werden, er besteht vielmehr aus vier verschiedenen Akkumulationen. Damit ergibt sich für den liegenden Deckenschotter ein günzeiszeitliches Alter.
description: research
The impact of index funds on grain futures markets revisited
Creators: name: Steinhübel, Linda
name: Prehn, Sören
name: Brümmer, Bernhard
name: Pies, Ingo
name: Will, Matthias Georg
name: Steinhübel, Linda
name: Prehn, Sören
name: Brümmer, Bernhard
name: Pies, Ingo
name: Will, Matthias Georg
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: Grain futures
subject: Commodity index funds
subject: Long-short index funds
subject: Impulse response analysis

description: We analyse the impact of index investment on four grain futures markets by applying several vector auto-regression models, generalised impulse response functions (GIRF), and a structural break analysis. We also test for effects of long-short index funds, an aspect widely ignored so far. Index funds have some price-disturbing effects. These are, however, short-term and variable. In all markets, significant effects vanish after 2010 and we conclude that markets learned and adjusted to rising index investment. GIRF of different trader types imply that index investment serves actual hedging needs and does not generally contribute to the financialisation of futures markets.