cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonextensive quantum statistics and saturation of the PMD-SQS optimality limit in hadron-hadron scattering
Creators: name: Ion, D. B.
name: Ion, M. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, new results on the analysis in hadron-hadron scattering are obtained by using the nonextensive quantum entropy and principle of minimum distance in the space of quantum states (PMD-SQS). Using Tsallis-like scattering entropies, the optimality as well as the nonextensive statistical behavior of the quantum scattering systems are investigated in an unified manner. A connection between optimal states obtained from the principle of minimum distance in the space of quantum states and the most stringent (MaxEnt) entropic bounds on Tsallis-like entropies for quantum scattering, is established. The generalized entropic uncertainty relations as well as the correlation between the nonextensivities p and q of the scattering statistics are proved. New results on the experimental tests of the saturation of the optimality limit}, as well as on the test of optimal entropic bands obtained by using the experimental pion-nucleon, kaon-nucleon, antikaon-nucleon phase shifts, are presented. The nonextensivity indices p and q are determined from the experimental entropies by a fit with the optimal entropies obtained from the principle of minimum distance in the space of states. Strong experimental evidences for the p-nonextensivity index in the range p=0.6 with q=p/(2p-1)=3, is obtained from the experimental data.
description: 17 pages, 3 figures
Cynthiacetus maxwelli Uhen 2005
Creators: name: Martínez-Cáceres, Manuel
name: Lambert, Olivier
name: Muizon, Christian de
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Basilosauridae
Cynthiacetus
Cynthiacetus maxwelli

description: Cynthiacetus maxwelli Uhen, 2005
 Zeuglodon cf. brachyspondylus – Müller 1849: 26-28. — Kellogg 1936: 248 (in part).
HOLOTYPE. — MMNS VP 445. It includes a partially preserved skull, dentaries, upper and lower dentitions, petro-tympanic complex, humerus, radius, ulna, cervical, thoracic and lumbar vertebrae.
TYPE LOCALITY. — Cynthia Clay Pit, Hinds County, Mississippi, USA.
TYPE HORIZON. — Yazoo Clay Formation, Priabonian, late Eocene.
 EMENDED DIAGNOSIS. — Cynthiacetus maxwelli differs mainly from C. peruvianus in having one more cusp on both mesial and distal edges on p3 and p4 (5 and 6 denticles respectively in p3 and p4). It also possesses a longer and lower dome-shaped neural arch on the atlas and shorter and more massive humerus, radius and ulna (cf. below).
description: Published as part of Martínez-Cáceres, Manuel, Lambert, Olivier & Muizon, Christian de, 2017, The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru, pp. 7-163 in Geodiversitas 39 (1) on page 16, DOI: 10.5252/g2017n1a1, http://zenodo.org/record/4535622
Searching low-energy conformations of two elastin sequences
Creators: name: Arkin, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: The three-dimensional structures of two common repeat motifs Val$^1$-Pro$^2$-Gly$^3$-Val$^4$-Gly$^5$ and Val$^1$-Gly$^2$-Val$^3$-Pro$^4$-Gly$^5$-Val$^6$-Gly$^7$-Val$^8$-Pro$^9$ of tropoelastin are investigated by using the multicanonical simulation procedure. By minimizing the energy structures along the trajectory the thermodynamically most stable low-energy microstates of the molecule are determined. The structural predictions are in good agreement with X-ray diffraction experiments.
description: 16 pages, 5 figures
Flandrian and Eemian Shore Levels in Finland and Adjacent Areas—a Discussion
Creators: name: Forsström, Lars
name: Eronen, Matti
Publisher: name: Geozon Science Media
Year: 1985

description: Die flandrischen und Eem-zeitlichen Bewegungen der Erdkruste überwiegend innerhalb Fennoskandias werden verglichen. Die flandrischen Entwicklungsphasen der Ostsee und die mit ihnen verbundenen Bewegungen sind in groben Zügen bekannt. Vorherrschender Faktor der Strandlinien-Verschiebungen im nördlichen Teil der Ostsee ist dabei die Landhebung gewesen. Sie verlief unmittelbar nach dem Abschmelzen des Eises sehr rasch, verlangsamte sich aber im frühen Holozän erheblich. Das Zentrum der Landhebung liegt nahe dem für die ausklingende Weichsel-Kaltzeit angenommenen Zentrum des Eisschildes. Über die Bewegungen der Erdkruste während des Eem-Interglazials liegen nur bruchstückhafte Informationen vor. Die untersuchten Ablagerungen schienen aber darauf hinzudeuten, daß während des Eem keine Strandlinien-Verschiebungen von dem für das Weichsel-Spätglazial und das Holozän ermittelten Typ stattgefunden haben. Deshalb müssen sich die isostatischen Krustenhebungen damals offensichtlich grundsätzlich vom postglazialen Bewegungsmuster unterschieden haben. Diese Unterschiede führt man hauptsächlich darauf zurück, daß sich ein Großteil der Eem-zeitlichen Landhebung unter dem rasch schmelzenden, in seiner Dicke reduzierten und über weite Areale stagnierenden Saale-Eisschild vollzogen haben dürfte. Außerdem hat das Zentrum des Eisschildes gegen Ende der Saale-Vereisung (Warthe-Stadium) wahrscheinlich bedeutend weiter östlich gelegen als dasjenige des Weichsel-Eises. Dies würde bedeuten, daß sich die isostatische Depression und die ihr entsprechende Wiederaufwölbung der Erdkruste sowohl räumlich als auch zeitlich von den Ereignissen in postglazialer Zeit unterschieden haben.
description: research
Neoplanorbulinella Matsumaru 1976
Creators: name: Gedik, Fatma
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Globothalamea
Rotaliida
Planorbulinidae
Neoplanorbulinella

description: Genus Neoplanorbulinella Matsumaru, 1976
 TYPE SPECIES. — Neoplanorbulinella saipanensis Matsumaru, 1976 by original designation.
description: Published as part of Gedik, Fatma, 2017, First record of the new Neoplanorbulinid species (Foraminifera) from the Early Oligocene in Turkey, Malatya Basin, Eastern Taurids, pp. 273-284 in Geodiversitas 39 (2) on page 280, DOI: 10.5252/g2017n2a6, http://zenodo.org/record/4536064
Das Mammut von Polch bei Mayen (Eifel)
Creators: name: Koenigswald, Wighart Von
Publisher: name: Geozon Science Media
Year: 1989

description: Die Skelettreste des 1936 bei Polch gefundenen Mammutes (Mammuthus primigenius) werden beschrieben. Es handelt sich um ein sehr altes Tier von rund 70 Jahren. Jedoch sind die Epiphysen an den Wirbeln noch nicht vollständig verknöchert. Die unteren M(3) wirken wesentlich stärker ausgekaut als die zugehörigen oberen M³. Senile Züge zeigt der Unterkiefer aus Polch noch nicht. Diese werden an einem Vergleichstück aus Nierstein/Rhein aufgezeigt.
description: research
Lithologie, Stratigraphie und Paläoökologie des Mittelpleistozäns von Uichteritz im Markröhlitzer Tal (Lkr. Weißenfels/Sachsen-Anhalt)
Creators: name: Meng, Stefan
name: Wansa, Stefan
Publisher: name: Geozon Science Media
Year: 2005

description: Die seit ca. 100 Jahren umstrittene Flussgeschichte des Markröhlitzer Tales westlich von Weißenfels wird anhand neuer lithologischer und malakologischer Untersuchungen der pleistozänen Schichtenfolge in der Kiessandgrube Uichteritz diskutiert. Es konnten drei übereinander lagernde fluviatile Schotterkörper ausgehalten werden, die sich in Profilaufbau, Geröllzusammensetzung und Verwitterungsintensität unterscheiden. Sie sind durch Schlufflagen bzw. Altwasserablagerungen und schwemmfächerartige Sedimente voneinander getrennt. Der Untere Schotter ist frei von nordischem Material und kann nach der Höhenlage der frühen Elster-Kaltzeit zugeordnet werden, der Mittlere und der Obere Schotter wurden wahrscheinlich in der späten Elster-Kaltzeit akkumuliert. Dafür sprechen die gegenüber der Hauptterrasse um 10-15 m höhere Lage, die Bedeckung durch saaleglaziäre Bildungen (Beckenschluff, Bänderton, Grundmoräne) und die differenzierten Verwitterungsbildungen, die zudem übereinstimmend mit den Molluskengesellschaften eine spätelsterzeitliche Wärmeschwankung andeuten. Molluskenfunde lieferten wichtige paläoökologische Informationen über die Bildungszeit der untersuchten Sedimente. Aus den vermutlich spätelsterzeitlichen Flussablagerungen sowie aus den im Hangenden folgenden saale- und weichselkaltzeitlichen Bildungen konnten diesbezüglich insgesamt 10 molluskenführende Horizonte untersucht werden. Aus den Unteren und Oberen Schottern sind bisher keine Fauneninhalte bekannt geworden. Die wahrscheinlich spätelsterzeitlichen Molluskenfaunen charakterisieren deutlich unterscheidbare Faziesbereiche: fluviatile Schotterablagerungen der Saale, welche durch Fließgewässerarten dominiert werden, sowie Stillwassersedimente einer von der Saale isolierten Fließrinne bzw. eines Altarmbereiches, welche durch Stillgewässerarten dominiert werden. Nach der etwa 48 Arten umfassenden Gesamtfauna zu urteilen, fällt die Bildungszeit der Sedimente in eine mildere kaltzeitliche Phase. Zahlreiche gehölzliebende Arten lassen darauf schließen, dass in der Saaleaue Auenwälder entwickelt waren. Ausgesprochene Steppenelemente fehlen weitestgehend, was mit den taphonomischen Verhältnissen im Ablagerungsraum innerhalb der Saaleaue in Verbindung gebracht wird. Zwar ist die Rekonstruktion des weiteren Umfeldes wegen vermutlicher Überlieferungslücken problematisch, zumindest zeigen aber die individuenreichen Vorkommen von Offenlandelementen, dass wahrscheinlich außerhalb der Aue keine geschlossene Bewaldung vorhanden war. Für kühlere Bedingungen sprechen einige subarktischalpine sowie boreale und montane Faunen-Elemente. Aus saalekaltzeitlichen Beckenschluffen sowie Geschiebemergeln konnten hochkaltzeidiche Molluskenfaunen nachgewiesen werden, wobei besonders die Vorkommen im Geschiebemergel bemerkenswert sind. Kaltzeitliche Mollusken fanden sich auch in weichselzeitlichen Lössen.
description: research
America's Diverse Family Farms: 2014 Edition
Creators: name: Hoppe, Robert A.
name: MacDonald, James M.
name: Hoppe, Robert A.
name: MacDonald, James M.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Farm Management
subject: Family farms
subject: farm businesses
subject: farm financial performance
subject: farm-operator household income and wealth
subject: farm operators
subject: farm structure
subject: farm typology
subject: Federal crop insurance
subject: Government payments
subject: limited-resource farms
subject: small farms
subject: tenure

description: Farming is still an industry of family businesses. Ninety-seven percent of farms are family farms, and they account for 85 percent of farm production. Small farms make up 90 percent of the farm count and operate half of the Nation's farmland. Most farm production, however, occurs on midsize and large-scale family farms.
Probing the Earth's interior with a large-volume liquid scintillator detector
Creators: name: Hochmuth, Kathrin A.
name: Feilitzsch, Franz v.
name: Fields, Brian D.
name: Undagoitia, Teresa Marrodan
name: Oberauer, Lothar
name: Potzel, Walter
name: Raffelt, Georg G.
name: Wurm, Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A future large-volume liquid scintillator detector would provide a high-statistics measurement of terrestrial antineutrinos originating from $β$-decays of the uranium and thorium chains. In addition, the forward displacement of the neutron in the detection reaction $\barν_e+p\to n+e^+$ provides directional information. We investigate the requirements on such detectors to distinguish between certain geophysical models on the basis of the angular dependence of the geoneutrino flux. Our analysis is based on a Monte-Carlo simulation with different levels of light yield, considering both unloaded and gadolinium-loaded scintillators. We find that a 50 kt detector such as the proposed LENA (Low Energy Neutrino Astronomy) will detect deviations from isotropy of the geoneutrino flux significantly. However, with an unloaded scintillator the time needed for a useful discrimination between different geophysical models is too large if one uses the directional information alone. A Gd-loaded scintillator improves the situation considerably, although a 50 kt detector would still need several decades to distinguish between a geophysical reference model and one with a large neutrino source in the Earth's core. However, a high-statistics measurement of the total geoneutrino flux and its spectrum still provides an extremely useful glance at the Earth's interior.
description: 21 pages, 9 figures. Minor changes, version accepted for publication in Astroparticle Physics
SuperModel Predictions in the Outskirts of the Galaxy Cluster Zwicky 3146
Creators: name: Fusco-Femiano, Roberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The relaxed galaxy cluster Zwicky 3146 is analyzed via the SuperModel, a tool already tested on many clusters since 2009. In particular, this analysis is focused on the intracluster medium X-ray temperature data measured by XMM-Newton up to r_{500}. A previous analysis was based on the temperature profile derived from the Sunyaev-Zeldovich effect pressure data. The gas mass fraction f_{gas} is obtained from the resulting SuperModel temperature profile extrapolated up to the virial radius R, that turns out in agreement with the steep temperature profiles observed by Suzaku, and from the gas density profile observed by XMM-Newton. The comparison between f_{gas} with the universal value indicates a non-thermal pressure component, p_{nth}, in the cluster outskirts. The SuperModel analysis shows a ratio alpha(R) (about 50%) of p_{nth} to the total pressure greater than the values found by simulations, highlighting the possible presence of accreting substructures and inhomogeneities in the gas density profile. Once that this profile is corrected for clumpiness, the level of p_{nth} is considerably reduced. However, a significant turbulence (alpha(R) about 20%) and entropy flattening are still present in the outskirts of the galaxy cluster Zwicky 3146.
description: 8 pages, 5 figures, in press on MNRAS
Measuring Access to Healthful, Affordable Food in American Indian and Alaska Native Tribal Areas
Creators: name: Kaufman, Phillip
name: Dicken, Chris
name: Williams, Ryan
name: Kaufman, Phillip
name: Dicken, Chris
name: Williams, Ryan
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Healthful
subject: affordable food
subject: access measures
subject: American Indian and Alaska Natives
subject: AIAN
subject: Oklahoma Tribal Statistical Area
subject: OTSA
subject: supermarkets
subject: SNAP
subject: Food Distribution Program on Indian Reservations
subject: FDPIR

description: The study compares distances to outlets for obtaining healthy, affordable food in tribal areas to those for the general U.S. population, with implications for improving the health of tribal populations. Errata: On April 9, 2015, the estimate for average distance from a grocery for all tribal areas in Table 2 on page 13 was corrected to fix a calculation error. References to the number in the text on pages 13-16 were updated to reference the revised number. The references to the estimate for population share and population percentiles for all ANVSA individuals in Table 3 on page 17 was also corrected.
Penarchaias Hottinger 2007
Creators: name: Gedik, Fatma
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Tubothalamea
Miliolida
Soritidae
Penarchaias

description: Genus Penarchaias Hottinger, 2007
 TYPE SPECIES. — Peneroplis glynnjonesi Henson, 1950 by original designation.
 Penarchaias glynnjonesi (Henson, 1950) (Fig. 6Q, R)
 Peneroplis glynnjonesi Henson, 1950: 35, pl. 9, figs 8, 9.
 Peneroplis aff. glynnjonesi – Sirel 2004: 36, pl. 35, figs 2, 3, 5, 10.
 Penarchaias glynnjonesi – Hottinger 2007: 11, 12, pl. 1, fig. 3; pl. 6, figs 2, 10; pl. 7, figs 7, 8; pl. 8, figs 6, 10; pl. 9, figs 6; pl. 12, figs 2; pl. 13, figs 3; pl. 14, figs 13; pl. 15, figs 1-5, 9.
DESCRIPTION
Only megalospheric form is observed. The test is lenticular, its diameter 0.9 mm in early stage, while in adult forms the diameter and the thickness of the test ranges from 1.31 to 1.36 mm and 0.47 to 0.52 mm, respectively. Spheric megalosphere is followed by planispiral early chambers, and later chambers become uniserial. Interior skeletal apertures are observed on the septum (Hottinger 2007: pl. 7, figs 7, 9). These apertures, which are one of the most important characteristics of the genus, are well observed in Figure 6R, S.
description: Published as part of Gedik, Fatma, 2017, First record of the new Neoplanorbulinid species (Foraminifera) from the Early Oligocene in Turkey, Malatya Basin, Eastern Taurids, pp. 273-284 in Geodiversitas 39 (2) on page 282, DOI: 10.5252/g2017n2a6, http://zenodo.org/record/4536064
The Wartanian Siedlec Sandur (Zedlitzer Sandur) southwards the Trzebnica Hills, Silesian Lowland; Southwestern Poland: re-examination after fifty years
Creators: name: Krzyszkowski, Dariusz
Publisher: name: Geozon Science Media
Year: 1993

description: Der Zedlitzer Sander (Siedlec Sandur) in Schlesien, im südwestlichen Polen gelegen, wurde zuerst von M. Schwarzbach im Jahr 1942 beschrieben. Er wurde als ein warthezeitlicher Sander gedeutet, der am Südrand der Stauchmoräne (Trzebnica Hügel, Trzebnica Katzengebirge) entstanden war. Einige neuere Untersuchungen widersprechen dieser Interpretation und negieren das Auftreten warthezeitlichen Eises in Südwest-Polen. Der vorliegende Beitrag präsentiert neue sedimentologische Untersuchungen aus den Ablagerungen des Siedlec Sanders. Das wichtigste Ergebnis dieser Studien ist eine detaillierte Beschreibung einiger klassischer, schon von Schwarzbach beschriebener und einiger neuer Aufschlüsse. Aus diesen Aufschlüssen wurde geschlossen, daß der Siedlec Sander einen eiszeitlichen Schwemmfächer mit Sedimentstrukturen repräsentiere, wie sie auch in Schwemmfächern semiarider Klimate vorkommen. Das glaziofluviatile Material des Schwemmfächers legt nahe, daß seine Sedimentation in einer kalten Polarwüste erfolgte. Dieser Schluß spricht für Schwarzbachs Deutung und nicht für die seiner Opponenten, und er belegt indirekt das Auftreten warthezeitlichen Eises in Schlesien. Im vorliegenden Beitrag wird außerdem die mögliche Ausdehnung des Eises in das Trebnitzer Katzengebirge diskutiert.
description: research
Technology, Organization, and Financial Performance in U.S. Broiler Production
Creators: name: MacDonald, James M.
name: MacDonald, James M.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Farm Management
subject: Livestock Production/Industries
subject: Broilers
subject: chicken industry
subject: contract growers
subject: production contracts
subject: cost of production
subject: farm finances

description: Between 1960 and 1995, U.S. broiler production grew by 5.6 percent per year, but a lack of growth since 2008 has placed new financial pressures on contract growers. This report uses USDA survey data to delineate the key features of the industry's organization and to analyze its recent financial and productive performance.
Le grand coureur (suite)
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Abstract
Preliminary results from a simulation of quenched QCD with overlap fermions on a large lattice
Creators: name: Berruto, Federico
name: Garron, Nicolas
name: Hoelbling, Christian
name: Lellouch, Laurent
name: Rebbi, Claudio
name: Shoresh, Noam
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We simulate quenched QCD with the overlap Dirac operator. We work with the Wilson gauge action at beta=6 on an 18^3x64 lattice. We calculate quark propagators for a single source point and quark mass ranging from am_q=0.03 to 0.75. We present here preliminary results based on the propagators for 60 gauge field configurations.
description: Lattice2003(chiral); 9 latex pages (espcrc2.sty), 13 figures. Based on talks given by C.H., L.L. and C.R. at 21st International Symposium on Lattice Field Theory (Lattice 2003), Tsubuka, Japan, 15-19 July 2003. Repitition in references corrected and one reference added
PyHEP 2022 Notebook Talk ―The ComPWA project: Speeding up differentiable programming with a Computer Algebra System
Creators: name: de Boer, Remco
Publisher: name: Zenodo
Year: 2022

description: In the ideal world, we describe our models with recognizable mathematical expressions and directly fit those models to large data samples with high performance. It turns out that this can be done by formulating our models with SymPy (a Computer Algebra System) and using its symbolic expression trees as template to computational back-ends like JAX and TensorFlow. The CAS can in fact further simplify the expression tree, which results in speed-ups in the numerical back-end.
 In this talk, we have a look at amplitude analysis as a case study and use the Python libraries of the ComPWA project to formulate and fit large expressions to unbinned, multidimensional data sets.
Elementos esenciales de un Plan de Salud Escolar Integral para el nivel primario metropolitano de Guatemala: una aproximación al cumplimiento de la Ley de Protección Integral de la Niñez Y Adolescencia
Creators: name: Olivares, Cristian
Publisher: name: figshare
Year: 2022
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: Health Care
subject: 111712 Health Promotion

description: Key elements for a macro plan in advance for a scholar health system in Guatemala.
The dynamics and geometry of free group endomorphisms
Creators: name: Mutanguha, Jean Pierre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65, 20E05, 20E06, 20F67

description: We prove that ascending HNN extensions of free groups are word-hyperbolic if and only if they have no Baumslag-Solitar subgroups. This extends the theorem of Brinkmann that free-by-cyclic groups are word-hyperbolic if and only if they have no free abelian subgroups of rank 2. The paper is split into two independent parts: 1) We study the dynamics of injective nonsurjective endomorphisms of free groups. We prove a canonical structure theorem that initializes the development of improved relative train tracks for endomorphisms; this structure theorem is of independent interest since it makes many open questions about injective endomorphisms tractable. 2) As an application of the structure theorem, we are able to (relatively) combine Brinkmann's theorem with our previous work and obtain the main result stated above. In the final section, we further extend the result to HNN extensions of free groups over free factors.
description: v1: 59 pages, 6 figures. v2: 60 pages, 6 figures. The existence result in the first part of the paper is now an existence & uniqueness result
Multi-Cropping Practices: Recent Trends in Double-Cropping
Creators: name: Borchers, Allison
name: Truex-Powell, Elizabeth
name: Wallander, Steven
name: Nickerson, Cynthia
name: Borchers, Allison
name: Truex-Powell, Elizabeth
name: Wallander, Steven
name: Nickerson, Cynthia
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Land Economics/Use
subject: multi-cropping
subject: double-cropping
subject: June Area Survey
subject: crop combinations

description: Over the last decade, growing demand for agricultural commodities-for both food and fuel-has increased the incentives for farm operators to increase production. Double-cropping has drawn interest as a method to intensify production without expanding acreage. This report develops a baseline analysis of U.S. double-cropping patterns from 1999 to 2012 and briefly explores factors that may influence farmers' double-cropping decisions.
Pontogeneus priscus Leidy 1852
Creators: name: Martínez-Cáceres, Manuel
name: Lambert, Olivier
name: Muizon, Christian de
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Basilosauridae
Pontogeneus
Pontogeneus priscus

description: Pontogeneus priscus Leidy, 1852
HOLOTYPE. — ANSP 13668, isolated middle cervical centrum.
TYPE LOCALITY AND HORIZON. — The original description indicates that the holotype is “from the Eocene formation of Ouachita, Louisiana ” (Leidy 1852: 52). Recently, Uhen (2005) pointed out the possibility that it comes from the vicinity of the Caldwell Parish, Louisiana, where the upper Eocene Jackson Group (Eargle 1959) is exposed.
DISCUSSION
 Leidy (1852) created the taxon Pontogeneus priscus based on an isolated cervical vertebra (Fig. 4), figured by Kellogg (1936) and interpreted as a fifth cervical. Uhen (2005) recognized it as a more anterior cervical (C3 or C4) and considered both genus and species as nomina nuda because the original description was not diagnostic and the vertebra could belong to a small specimen of Basilosaurus (indeed, the centrum is quite similar in size to that of UM-WH74, a small Basilosaurus isis). However, it can be evaluated that the vertebarterial foramina in the holotype of P. priscus are proportionally larger than in Basilosaurus (Fig. 4). Such a feature is diagnostic for the genus Cynthiacetus (Martínez-Cáceres & Muizon 2011). Because of this character Pontogeneus priscus could have closer affinities with Cynthiacetus than with Basilosaurus (as proposed by Gingerich 2015). However, such a holotype (the centrum of an isolated cervical vertebra) is not regarded as diagnostic enough to characterize a basilosaurid taxon and it is suggested here that the binome Pontogeneus priscus should only refer to the cervical vertebra described by Leidy (1852). Therefore, the genus name and the species name should be regarded as a Basilosauridae or a Pelagiceti incertae sedis and restricted to the type specimen of P. priscus.
description: Published as part of Martínez-Cáceres, Manuel, Lambert, Olivier & Muizon, Christian de, 2017, The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru, pp. 7-163 in Geodiversitas 39 (1) on page 13, DOI: 10.5252/g2017n1a1, http://zenodo.org/record/4535622
title: Ecological strategies of two Ranunculus species in relation to seasonal submergence
Creators: name: Smith, S. J.
Publisher: name: The Open University
Year: 1986

description: This thesis is concerned with the role of submergence in the ecology of the perennial Ranunculus repens and the annual R. sceleratus, both of which are common in seasonally submerged habitats. Evidence is presented for genetic differentiation between R. repens populations with respect to tactical changes in allocation and growth form in response to submergence. R. repens plants maintain or increase their dry weight allocation to stolons in response to submergence independent of site of origin. A decrease in flowering in submerged R. repens plants was related to a change in the positive correlation between total dry weight and the probability of flowering in these plants. The dry weight per unit length of petioles decreased in response to submergence in plants from all sites but changes in the dry weight per unit length of stolons depended on the site of origin of the plants. Plants from all sites showed plasticity in growth form with respect to stolon internode lengths but the direction of change in response to submergence depended on site.

At low nutrient levels R. sceleratus plants showed increased dry weight allocation to vegetative organs in response to submergence but unchanged or reduced allocation to sexual reproductive structures. However, all changes in allocation in response to submergence disappeared at higher nutrient levels. Reductions in the number of flowers per plant in response to submergence were independent of nutrient status but plants at high nutrient levels showed no change in the number of seeds per plant due to a larger number of seeds per seed head. This may be related to the association of this species with nutrient rich habitats. A demographic analysis of R. sceleratus showed that these plants can exhibit a wide range of life history tactics. There was a trend for a longer pre-flowering period to result in lower survivorship but greater seed output. Seed germination in this species is promoted by diurnally fluctuating temperatures in both the light and dark but the promotion is greatest in the former.
Bt-Horizonte als Interglazial-Zeiger in den humiden Mittelbreiten: Bildung, Mikromorphologie, Kriterien
Creators: name: Stephan, Siegfried
Publisher: name: Geozon Science Media
Year: 2000

description: Die Untersuchung wird auf die humiden Mittelbreiten begrenzt, wo „Interglazial" durch die Rückwanderung temperierter Laubwälder definierbar ist. Auf die Frage, welche Bodentypen oder Horizonte sicher einem Interglazial zugeordnet werden können, gibt es keine eindeutige Antwort. Pedogenetische Betrachtungen und mikromorphologische Befunde führen aber zu einer Fallunterscheidung, die weitreichende Interpretationssicherheit gibt. Sichere Zeugen für eine interglaziäre Genese sind zunächst autochthone Bt-Horizonte aus kalkhaltigen, schluffreichen Substraten und mit Tonbelägen in Poren. Aber auch Bt-Horizonte aus allochthonem Bodenmaterial kalkhaltiger, schluffreicher Substrate und mit Tonbelägen oder deren Bruchstücken sind sichere Zeugen, wenn die Zeitspanne von Verwitterung. Lessivierung und Materialverlagerung zusammengefasst werden kann und keine Kaltzeit enthält. Bei anderen Bt-Horizonten ist die Zugehörigkeit zu einem Interglazial sehr zurückhaltend zu beurteilen. Es muss dann sichergestellt werden, dass die Entwicklungszeit nicht durch eine oder mehrere der folgenden Bedingungen so weit verkürzt worden ist, dass kein Interglazial notwendig wäre: 1. Armes Ausgangsmaterial mit geringer Menge verwitterbarer Minerale, 2. Dominanz von Sand und Kies, 3. Beimengung von vorverwittertem und insbesondere Bt-Material aus einem älteren Interglazial, 4. Durchgriff der Verwitterung und Lessivierung aus einem hangenden Boden, 5. Siedlungslage mit Asche-Einfluss.
description: research
Jungquartär und End-Mesolithikum in der Provinz Kerman (Iran)
Creators: name: Huckriede, Reinhold
Publisher: name: Geozon Science Media
Year: 1962

description: Die Hauptmassen der mächtigen jungquartären Schutt-Ausfüllungen und die See-Lösse der weiten Hochtäler des Kerman-Gebietes scheinen unter semi-ariden Bedingungen bis ins ältere Holozän abgelagert worden zu sein. In den heutigen ariden, nahezu wüstenhaften Gebieten nördlich Buhabad und in der Stadt Kerman zeigen Sedimente eines Brackwasser-Sees und süßer bis oligohaliner seichter Gewässer, daß einst Niederschläge und Feuchtigkeit größer waren als heutzutage. In Kerman führen sie mergelig-torfige Lagen und werden dem letzten Pluvial zugeordnet. Sie enthalten viele Farn- und Pilz-Reste und unter den Mollusken feuchtigkeitsbedürftige Landgastropoden, die heute auf dem Iranischen Hochland ausgestorben sind, sich aber in den feuchten Waldgebieten der hyrkanischen Länder finden. Bei Kuhbanan wurde eine mikrolithische Kultur entdeckt, die nach Artefakt-typologischen Gründen als end-mesolithisch zu bezeichnen ist, aber wie das Natufium Palästinas schon viele Sichelklingen mit Cerealien-Kieselglanz aufweist. Damit scheint der Anfang des Getreidebaus in Iran in sehr alten Zeiten oder wenigstens ein Ernten von Wildgräsern und für ihr Gedeihen günstige klimatische Bedingungen bezeugt zu sein.
description: research
Task-Independent Spiking Central Pattern Generator: A Learning-Based Approach
Creators: name: Aljalbout, Elie
name: Walter, Florian
name: Röhrbein, Florian
name: Knoll, Alois
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Legged locomotion is a challenging task in the field of robotics but a rather simple one in nature. This motivates the use of biological methodologies as solutions to this problem. Central pattern generators are neural networks that are thought to be responsible for locomotion in humans and some animal species. As for robotics, many attempts were made to reproduce such systems and use them for a similar goal. One interesting design model is based on spiking neural networks. This model is the main focus of this work, as its contribution is not limited to engineering but also applicable to neuroscience. This paper introduces a new general framework for building central pattern generators that are task-independent, biologically plausible, and rely on learning methods. The abilities and properties of the presented approach are not only evaluated in simulation but also in a robotic experiment. The results are very promising as the used robot was able to perform stable walking at different speeds and to change speed within the same gait cycle.
description: Neural Processing Letters
Photocurrents in nanotube junctions
Creators: name: Stewart, D. A.
name: Leonard, Francois
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Photocurrents in nanotube p-n junctions are calculated using a non-equilibrium Green function quantum transport formalism. The short-circuit photocurrent displays band-to-band transitions and photon-assisted tunneling, and has multiple sharp peaks in the infrared, visible, and ultraviolet ranges. The operation of such devices in the nanoscale regime leads to unusual size effects, where the photocurrent scales linearly and oscillates with device length. The oscillations can be related to the density of states in the valence band, a factor that also determines the relative magnitude of the photoresponse for different bands.
description: 5 pages, 4 figures, submitted
Graduate recitals
Creators: name: Kuntz, Kristan Nicole
Publisher: name: University of British Columbia
Year: 2011

description: The thesis for the Master of Music degree in Orchestral Instruments consists of two full-length recitals, or the equivalent, with emphasis on solo works, but also including representative chamber works. My two full-length recitals were performed on March 21, 2006 and February 13, 2007.
Mississippi und Rhein
Creators: name: Woldstedt, Paul
Publisher: name: Geozon Science Media
Year: 1960

description: Mississippi und Rhein waren beide Haupt-Urstromtäler der pleistozänen Vereisungen. Beide haben ausgeprägte Deltas entwickelt, die in ständig sinkenden Räumen liegen. Die über 1200 m mächtige pleistozäne Schichtenfolge im Mississippi-Delta setzt sich aus mehreren Zyklen zusammen, die jeweils mit einem sandigen Sockel beginnen und mit feinsandig-tonigen Deckschichten enden. Sie verzahnen sich nach außen hin mit marinen Bildungen. Die Zyklen entsprechen dem Übergang von einer Eiszeit zu einer Interglazialzeit. Was sich aber weiter flußaufwärts als Terrasse über den jetzigen Talboden erhebt, ist wie, am Rhein gezeigt werden kann, jeweils nur der eiszeitliche Sockel eines Aufschüttungs-Zyklus. So sind die eigentlichen Terrassen im Mittellauf des Mississippis, wie beim Rhein, glazialen und nicht interglazialen Alters.
description: research
Making Sense of Recent Cost-of-Foodborne-Illness Estimates
Creators: name: Hoffmann, Sandra
name: Anekwe, Tobenna D.
name: Hoffmann, Sandra
name: Anekwe, Tobenna D.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Health Economics and Policy
subject: Foodborne illness
subject: health valuation
subject: cost of illness
subject: QALY
subject: willingness to pay
subject: VSL EQ-5D
subject: burden of disease
subject: chronic sequelae
subject: Campylobacter
subject: E. coli
subject: Listeria
subject: norovirus
subject: Salmonella
subject: Toxoplasma
subject: Vibrio
subject: Yersinia

description: Three recent studies provide cost-of-foodborne-illness estimates ranging from $14.1 billion to $152 billion. This report shows that differences in these estimates are largely due to the number of diseases considered, the valuation methods used, and uncertainty about disease incidence estimates.
Teorías de rango medio en enfermería: Una revisión crítica
Creators: name: Olivares, Cristian
Publisher: name: figshare
Year: 2022
Subjects: subject: 111002 Clinical Nursing: Primary (Preventative)
subject: FOS: Health sciences
subject: 111099 Nursing not elsewhere classified
subject: 111799 Public Health and Health Services not elsewhere classified

description: A critical bibliographical review for middle range theories in nursing
Dynamical shift conditions for the Z4 and BSSN hyperbolic formalisms
Creators: name: Bona, C.
name: Palenzuela, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A class of dynamical shift conditions is shown to lead to a strongly hyperbolic evolution system, both in the Z4 and in the BSSN Numerical Relativity formalisms. This class generalizes the harmonic shift condition, where light speed is the only non-trivial characteristic speed, and it is contained into the multi-parameter family of minimal distortion shift conditions recently proposed by Lindblom and Scheel. The relationship with the analogous 'dynamical freezing' shift conditions used in black hole simulations discussed.
description: text changed, accepted in PRD
Masracetus Gingerich 2007
Creators: name: Martínez-Cáceres, Manuel
name: Lambert, Olivier
name: Muizon, Christian de
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Basilosauridae
Masracetus

description: Genus Masracetus Gingerich, 2007
 TYPE SPECIES. — Masracetus markgrafi Gingerich, 2007 by original designation.
description: Published as part of Martínez-Cáceres, Manuel, Lambert, Olivier & Muizon, Christian de, 2017, The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru, pp. 7-163 in Geodiversitas 39 (1) on page 15, DOI: 10.5252/g2017n1a1, http://zenodo.org/record/4535622
title: Play and development of social skills in infant rhesus macaques
Creators: name: Scanlon, Kate
Publisher: name: The Open University
Year: 1984

description: The purpose of this study was to monitor the development of playful and socially skilled behaviours in infant rhesus monkeys (Macaca mulatta) in order to discover whether there was any relationship between them. Important factors of rhesus social organization: genetic relationship, dominance rank, and the long birth season, were investigated for their relationship to the development of playful and socially skilled behaviours. Twenty infants from one social group on Cayo Santiago, Puerto Rico, were observed using a focal animal sampling technique. The focal infants were born in the same birth season, and were all males. Observations were made on each infant from 9 to 79 weeks of age. Summaries of playful and skilful behaviours were made for three 14-week age periods: 9-22 weeks, 23-36 weeks and 66-79 weeks. Associations between playful and skilful behaviours were investigated within and between age periods. Play did not have a delayed effect on the development of the social skills measured in this study. Play was related to skills in play and skills in grooming within the same age period. Play was related to persistence in initiating play in the later age periods. Play and skills in grooming were competing for infants' time at 9-22 weeks. At 66-79 weeks high levels of play and skills in grooming occurred in the same infants. Early social skills in play were related to later play. This relationship could be accounted for by date of birth acting as a common factor. Dominance rank and genetic relationships were important in the development of play, but did not act as common factors in the development of playful and socially skilled behaviours. With increasing age, infants became more selective in their choice of play partners. Focal infants tended to play with monkeys of the same age, the same sex, of close genetic relationship, and of adjacent dominance rank, and this trend increased. In this study, knowledge of the behaviour of infants at one age was not useful to predict their behaviour at a different-age. Play appears to have a few specific associations rather than a general association with the development of social skills with age.
U.S. Wheat Production Practices, Costs, and Yields: Variations Across Regions
Creators: name: Vocke, Gary
name: Ali, Mir
name: Vocke, Gary
name: Ali, Mir
Publisher: name: Unknown
Year: 2013
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: wheat
subject: wheat prices
subject: wheat inputs
subject: wheat cost of production
subject: Agricultural Resource Management Survey
subject: ARMS
subject: operating costs
subject: ownership costs

description: The study explores the variation in wheat yields and production costs across U.S. regions, based on data from the 2009 Agricultural Resource Management Survey.
Klima-Änderungen im Pleistozän: Isotopenuntersuchungen an fossilen Seesedimenten aus dem Holstein-Interglazial Ost-Polens
Creators: name: Nitychoruk, Jerzy
name: Hoefs, Jochen
name: Schneider, Jürgen
Publisher: name: Geozon Science Media
Year: 1999

description: In Ost-Polen erbohrte Seesedimente mit einer Mächtigkeit bis zu 55 m (Ossówka-See) dokumentieren das ganze Holstein-Interglazial und die Anfangsperiode der Saale-Eiszeit. An ausgewählten Bohrkernen der Seen von Ossówka und Wilczyn wurden palaeobiologische (Malakofauna, Palynologie und Pflanzen-Makroreste) und Isotopen-Untersuchungen durchgeführt. Die für den längsten (55 m) und vollständigsten Bohrkern nahe der Ortschaft Ossówka bestimmten C- und O-Isotopenwerte betragen: δ13C: Minimalwerte bis -6,4 ‰ für Ablagerungen am Beginn des Interglazials, Maximalwerte bis +10,0‰ für Ablagerungen aus der kalten Frühglazialperiode; δ18O: Maximalwerte bis -3,6 ‰ für Ablagerungen aus dem ersten Abschnitt des Interglazial-Optimums, Minimalwerte bis -10,1 ‰ für Ablagerungen aus der kältesten Periode unmittelbar vor der nächsten Vereisung. Generell gibt der Kurvenverlauf der O-Isotopenwerte gut die palynologisch dokumentierten Klimaveränderungen wieder. Im Profil sind jedoch zwei Perioden zu beobachten, in denen das Isotopenbild nicht mit der palynologischen Aussage übereinstimmt, einmal im klimatischen Interglazial-Optimum und zum anderen im jüngeren Teil des frühen Saale-Glazials. 1. Während des klimatischen Optimums des Holstein-interglazials (Pollen-Zone G und H) sprechen die Isotopenkurven der Seesedimente für relativ kühle Klimaverhältnisse. Dies kann durch eine Zunahme der Niederschlagsmenge, die zu einer Seespiegel-Erhöhung führte und/oder durch den Einfluß von isotopisch leichten Zuflüssen erklärt werden. 2. Im oberen Teil des Profils, der eine kühle, der Vereisung vorangehende Phase darstellt, erreichen die δ13C-und δ18O-Isotope unerwartet hohe Werte, was möglicherweise auf die Redeposition von "warmen" interglazialen Ablagerungen und/oder auf eine Zunahme der Evaporation unter trockenen Steppenklima-Bedingungen mit Seespiegel-Tiefständen zurückzuführen ist. Abkühlungsphasen fallen mit der Verschiebung der Sauerstoffisotopenverhältnisse in Richtung einer 18O- Verarmung zusammen.
description: research
Partisan responsiveness in the US House of Representatives, 1997-2005
Creators: name: McAndrews, John R
Publisher: name: University of British Columbia
Year: 2011

description: In this paper, I develop and test a new theory of partisan responsiveness. The theory suggests that members of Congress will be most responsive to the average same-party voter compared with the average voter on high polarization-low salience issues and most responsive to the average voter compared with the average same-party voter on low polarization-high salience issues. I test these predictions on four issues - free trade, the Patriot Act, taxes and abortion - using the 2000 and 2004 National Annenberg Election Surveys. The results offer only partial support for the theory.
Gravitational waves from vacuum first order phase transitions II: from thin to thick walls
Creators: name: Cutting, Daniel
name: Escartin, Elba Granados
name: Hindmarsh, Mark
name: Weir, David J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a vacuum first-order phase transition, gravitational waves are generated from collision of bubbles of the true vacuum. The spectrum from such collisions takes the form of a broken power law. We consider a toy model for such a phase transition, where the dynamics of the scalar field depends on a single parameter $\overlineλ$, which controls how thin the bubble wall is at nucleation and how close to degenerate the vacua are relative to the barrier. We extend on our previous work by performing a series of simulations with a range of $\overlineλ$. The peak of the gravitational-wave power spectrum varies by up to a factor of $1.3$, which is probably an unobservable effect. We find that the ultraviolet (UV) power law in the gravitational-wave spectrum becomes steeper as $\overlineλ \rightarrow 0$, varying between $k^{-1.4}$ and $k^{-2.2}$ for the $\overlineλ$ considered. This provides some evidence that the form of the underlying effective potential of a vacuum first-order phase transition could be determined from the gravitational-wave spectrum it produces.
description: 24 pages, 20 figures. Updated to match version accepted for publication. Modification of how lattice uncertainty was incorporated into analysis leads to a moderate quantitative but not qualitative change in the fits reported
title: An ultrastructural study of gametogenesis and early development in the sea anemone Actinia fragecea (Cnidaria : Anthozoa)
Creators: name: Larkman, Alan Urquhart
Publisher: name: The Open University
Year: 1986

description: Large Individuals of the sea anemone Actinia fragacea were collected at approximately monthly intervals over a two year period. Their gonads were examined by light and electron microscopy, in order to follow the gametogenic process. The sexes are separate, and both show an annual cycle of activity. Oocytes arise in the gonad epithelia, but soon migrate into the mesogloea. During vitellogenesis, the oocytes accumulate compound yolk granuleso fibrillar and cortical granules, lipid droplets and glycogen. The surface of large oocytes bears tufts of large microvilli or cytospines. The oocytes reach some 150 pm in size. A group of specialized gonad epithelial cells projects through the mesogloea and contacts the oocyte surface, forming the trophonema, which is involved with nutrient transfer. The gonad epithelium can take up nutrients from the external medium, and the trophonema is particularly active in the uptake and incorporation of some small molecules. Not all fully grown oocytes are always spawned; some break down in an orderly fashion and are resorbed. Oogenesis was also examined, in less detallo in four other species of anemone. Spermatogenesis takes place in spherical testicular cysts, which are also associated with trophonemata. Spawning occurred in the laboratory on three occasions. Spawned eggs do not possess a vitelline coat, and do not undergo a cortical reaction. Gastrulae may take up numerous supernumary sperm.