cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The effects of limpet grazing on algal colonisation around the coast of Holy Island (Anglesey)
Creators: name: Owens, Marguerite Wendy
Publisher: name: The Open University
Year: 1984

description: Limpets are common on exposed shores where they are generalist feeders of algal sporelings and mature plants. They are known to he responsible for the paucity of algal cover on exposed shores. The cyclic relationship which may exist between algae and limpets is probably partly controlled by the degree of exposure of the shore. Five experimental areas differing in aspect and degree of slope, were chosen on the exposed rocky shore of the West coast of Holy Island (Anglesey). The experimental areas were cleared of limpets to allow algal colonisation to take place. Adjacent control areas were however not cleared of limpets and grazing continued in these areas. Any changes in algal composition in both experimental and control areas were monitored by using quantitative methods. The pattern of recolonisation and algal succession on sheltered shores as described by previous workers, such as Jones (1946) was confirmed. Algal zonation occurred on almost all experimental areas and there was no strong evidence for zone mixing as described by Lodge (1948). Some alteration in the distribution of certain members of the Rhodophyceae indicated increased moisture levels on the rock surface as a result of recolonisation. There was also some evidence of greater species diversity on the experimental areas compared with the control areas. Algal composition however, remained virtually unchanged in the control areas even after three years of study.
Children's Participation in Designing Their Learning Environment
Creators: name: Ghanimifard, Fatemeh
Publisher: name: The University of British Columbia
Year: 2017

description: This paper examines the scholarly literature regarding the early learning physical environment with a focus on how young children can actively participate in designing their learning environment. The physical environment of the learning space is an important component in the quality of children’s early education experience; yet traditionally children have not been involved in its creation. Moreover, the physical environment portrays educational values as well as societal perceptions about the image of the child. After the UN Convention on the Rights of the Child (UNCRC) in 1989, a new paradigm emerged in children’s education. Theories advanced by the new sociology of childhood (e.g., James & Prout, 1997) promoted a view of children as active citizens who have valid ideas about our world. This approach emphasized listening to children’s voices as a means for increasing children’s participation in processes that affect their lives. Drawing from these theories, this paper argues that one factor that amplifies children’s competencies and self-worth is the possibility to participate in designing environments that reflect the value of multiple voices and the image of the child as a competent member of society. Based on a literature review, I outline ways in which researchers, architects, and educators have involved children in designing spaces. I then offer early childhood educators points to consider as they move towards including children’s voices in the design of the learning environment.
TECHNICAL EFFICIENCY IN ORGANIC AND CONVENTIONAL AGRICULTURE - A GENDER COMPARISON
Creators: name: DJOKOTO, Justice G.
name: OWUSU, Victor
name: AWUNYO-VITOR, Dadson
name: DJOKOTO, Justice G.
name: OWUSU, Victor
name: AWUNYO-VITOR, Dadson
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Farm Management
subject: Productivity Analysis
subject: Cocoa
subject: conventional agriculture
subject: gender
subject: Ghana
subject: organic agriculture
subject: Suhum

description: This article contributes to the pertinent literature by providing a gender perspective to organic-conventional technical efficiency comparative studies and to the debate on technical efficiency of organic and conventional agriculture. Data from 280 organic and 378 conventional cocoa farm from Suhum area in Ghana; segregated into 101 females and 557 males, were analysed. Using separate frontiers, females were found to be more technically efficient than males irrespective of technology; conventional or organic, although males tended to be more productive. Increased access to productive inputs to females is necessary to increase their participation in organic cocoa production and further enhance efficiency.
description: DOI: 10.15414/raae/2017.20.02.03-11 https://roaae.org/issue/review-of-agricultural-and-applied-economics-raae-vol-20-no-22017/?article=technical-efficiency-in-organic-and-conventional-agriculture-a-gender-comparison
Collisional interferometry of Levitons in quantum Hall edge channels at $ν=2$
Creators: name: Rebora, G.
name: Acciai, M.
name: Ferraro, D.
name: Sassetti, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a Hong-Ou-Mandel interferometer for Lorentzian voltage pulses applied to Quantum Hall edge channels at filling factor $ν=2$. Due to inter-edge interactions, the injected electronic wave-packets fractionalize before partitioning at a quantum point contact. Remarkably enough, differently from what theoretically predicted and experimentally observed by using other injection techniques, we demonstrate that, when the injection occurs through time-dependent voltage pulses (arbitrarily shaped), the Hong-Ou-Mandel noise signal always vanishes for a symmetric device, and that a mismatch in the distances between the injectors and the point of collision is needed in order to reduce the visibility of the dip. We also show that, by properly tuning these distances or by applying different voltages on the two edge channels in each arm of the interferometer, it is possible to estimate the intensity of the inter-edge interaction. The voltage pulses are chosen of the Lorentzian type because of their experimental relevance.
description: 14 pages, 9 figures
Aleuroglandulus striatus Sampson & Drews 1941
Creators: name: Martin, Jon H.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aleyrodidae
Aleuroglandulus
Aleuroglandulus striatus

description: Aleuroglandulus striatus Sampson & Drews
(Figs 28, 88)
 Aleuroglandulus striatus Sampson & Drews, 1941: 157–159. Syntypes, Mexico.
DISTRIBUTION. Neotropical Region: Belize, Costa Rica, Guatemala, Honduras, Mexico.
 COMMENTS. See key to species, above, for distinguishing characters. The author has only encountered A. striatus in very small numbers, usually widely scattered. Even with dorsal glandular areas inevident, this species exhibits all other generic characters.
description: Published as part of Martin, Jon H., 2005, Whiteflies of Belize (Hemiptera: Aleyrodidae) Part 2 - a review of the subfamily Aleyrodinae Westwood, pp. 1-116 in Zootaxa 1098 (1) on page 15, DOI: 10.11646/zootaxa.1098.1.1, http://zenodo.org/record/5051548
The Wisconsin H-Alpha Mapper Northern Sky Survey
Creators: name: Haffner, L. M.
name: Reynolds, R. J.
name: Tufte, S. L.
name: Madsen, G. J.
name: Jaehnig, K. P.
name: Percival, J. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Wisconsin H-Alpha Mapper (WHAM) has surveyed the distribution and kinematics of ionized gas in the Galaxy above declination -30 degrees. The WHAM Northern Sky Survey (WHAM-NSS) has an angular resolution of one degree and provides the first absolutely-calibrated, kinematically-resolved map of the H-Alpha emission from the Warm Ionized Medium (WIM) within ~ +/-100 km/s of the Local Standard of Rest. Leveraging WHAM's 12 km/s spectral resolution, we have modeled and removed atmospheric emission and zodiacal absorption features from each of the 37,565 spectra. The resulting H-Alpha profiles reveal ionized gas detected in nearly every direction on the sky with a sensitivity of 0.15 R (3 sigma). Complex distributions of ionized gas are revealed in the nearby spiral arms up to 1-2 kpc away from the Galactic plane. Toward the inner Galaxy, the WHAM-NSS provides information about the WIM out to the tangent point down to a few degrees from the plane. Ionized gas is also detected toward many intermediate velocity clouds at high latitudes. Several new H II regions are revealed around early B-stars and evolved stellar cores (sdB/O). This work presents the details of the instrument, the survey, and the data reduction techniques. The WHAM-NSS is also presented and analyzed for its gross properties. Finally, some general conclusions are presented about the nature of the WIM as revealed by the WHAM-NSS.
description: 42 pages, 14 figures (Fig 6-9 & 14 are full color); accepted for publication in 2003, ApJ, 149; Original quality figures (as well as data for the survey) are available at http://www.astro.wisc.edu/wham/
Designing for the Canine User: A User-Centred Design Framework for the Integration of Technology into the Assistance Canine Training Industry
Creators: name: Farrell, Jai
Publisher: name: Swinburne
Year: 2024

description: This thesis investigates the introduction of technology into the assistance canine training industry. It presents a User-Centred Design framework that adapts Human-Computer Interaction and Animal-Computer Interaction methods for designing, developing, and testing technologies in the assistance canine training industry. The methodological approach prioritises user engagement and canine welfare at every stage, defining an End-to-End testing process for guiding technology integration. These contributions establish a foundation for future Animal-Computer Interaction research, with a focus on representing and addressing the needs of the canine user.
Safe Drivers Smart Options Strategy: Awareness Among Michigan Older Adults, Caregivers and Professionals
Creators: name: Eby, David W.
name: Zakrajsek, Jennifer S.
name: St. Louis, Renée M.
name: Zanier, Nicole
name: Molnar, Lisa J.
Publisher: name: UMTRI
Year: 2023
Subjects: subject: Aging
subject: Mobility
subject: Senior Driver
subject: Safety
subject: Transportation
subject: Engineering

description: Technical Report
description: In this project, UMTRI conducted Safe Drivers Smart Options (SDSO) strategy and website awareness surveys among Michigan older adults, caregivers who provide transportation assistance to older adults, and professionals who serve/interact with these two groups regarding aging and transportation. UMTRI compared these results to similar surveys conducted in 2016. The results showed: awareness of the SDSO strategy phrase and website is low and has stayed the same or decreased since the 2016 surveys; older adults, caregivers, and professionals are interested in having information about advanced driver assistance systems; use of the Internet to find transportation and aging related information is increasing for both older adults and caregivers; the transportation-related information that the three groups seek is generally available on the SDSO website; and the primary types of assistance given by Michigan caregivers is related to getting older adults to and from destinations.
First in-situ Measurements of Electron Density and Temperature from Quasi-Thermal Noise Spectroscopy with Parker Solar Probe/FIELDS
Creators: name: Moncuquet, Michel
name: Meyer-Vernet, Nicole
name: Issautier, Karine
name: Pulupa, Marc
name: Bonnell, J. W.
name: Bale, Stuart D.
name: de Wit, Thierry Dudok
name: Goetz, Keith
name: Griton, Léa
name: Harvey, Peter R.
name: MacDowall, Robert J.
name: Maksimovic, Milan
name: Malaspina, David M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Heat transport in the solar corona and wind is still a major unsolved astrophysical problem. Because of the key role played by electrons, the electron density and temperature(s) are important prerequisites for understanding these plasmas. We present such in situ measurements along the two first solar encounters of Parker Solar Probe (PSP), between 0.5 and 0.17 AU from the Sun, revealing different states of the emerging solar wind near solar activity minimum. These preliminary results are obtained from a simplified analysis of the plasma quasi-thermal noise (QTN) spectrum measured by the Radio Frequency Spectrometer (RFS/FIELDS). The local electron density is deduced from the tracking of the plasma line, which enables accurate measurements, independent of calibrations and spacecraft perturbations, whereas the temperatures of the thermal and supra-thermal components of the velocity distribution, as well as the average kinetic temperature are deduced from the shape of the plasma line. The temperature of the weakly collisional thermal population, similar for both encounters, decreases with distance as $R^{-0.74}$, much slower than adiabatic. In contrast, the temperature of the nearly collisionless suprathermal population exhibits a virtually flat radial variation. The 7-second resolution of the density measurements enables us to deduce the low-frequency spectrum of compressive fluctuations around perihelion, varying as $f^{-1.4}$. This is the first time that QTN spectroscopy is implemented with an electric antenna length not exceeding the plasma Debye length. As PSP will approach the Sun, the decrease in Debye length is expected to considerably improve the accuracy of the temperature measurements.
description: 17 pages, 7 figures, accepted in ApJS (Parker Solar Probe special issue)
Additional file 3 of Linked optical and gene expression profiling of single cells at high-throughput
Creators: name: Zhang, Jesse
name: Siltanen, Christian
name: Leqian Liu
name: Chang, Kai-Chun
name: Gartner, Zev
name: Abate, Adam
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Supplemental figures and tables.
RAINFALL FLUCTUATIONS AND ECONOMIC GROWTH: EVIDENCE FROM SENEGAL
Creators: name: CABRAL, François Joseph
name: CABRAL, François Joseph
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Resource /Energy Economics and Policy
subject: Risk and Uncertainty
subject: climate change
subject: rainfall
subject: agriculture
subject: economic growth
subject: CGE

description: In this paper, we simulate and evaluate the impact of extreme rainfall events on various sectors in the economy; factors of production remuneration and economic growth in Senegal. A dynamic general equilibrium model is developed which includes an index linking rainfall fluctuations to total productivity factor (TPF) and factor market. Based on rainfall trends during the past three decades, we run simulations to assess the effects of rainfall values on GDP growth. The results show that extreme events in rainfall pattern deeply affect GDP growth in Senegal; sharp drops in rainfall lead to declining GDP and periods of abundant rainfalls are marked by better performance in term of GDP. However, rainfall drops lead to losses in GDP growth in comparison to gains in GDP growth due to rainfall surplus.
description: DOI: 10.15414/raae.2017.20.02.12-21 https://roaae.org/issue/review-of-agricultural-and-applied-economics-raae-vol-20-no-22017/?article=rainfall-fluctuations-and-economic-growth-evidence-from-senegal
A gravitational memory effect in "boosted" black hole perturbation theory
Creators: name: Gleiser, Reinaldo J.
name: Dominguez, Alfredo E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Black hole perturbation theory, or more generally, perturbation theory on a Schwarzschild bockground, has been applied in several contexts, but usually under the simplifying assumption that the ADM momentum vanishes, namely, that the evolution is carried out and observed in the ``center of momentum frame''. In this paper we consider some consequences of the inclusion of a non vanishing ADM momentum in the initial data. We first provide a justification for the validity of the transformation of the initial data to the ``center of momentum frame'', and then analyze the effect of this transformation on the gravitational wave amplitude. The most significant result is the possibility of a type of gravitational memory effect that appears to have no simple relation with the well known Christodoulou effect.
description: REVTexIV, 15 pages, 2 EPS figures
A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes
Creators: name: Ashton, Terry
name: Backes, Michael
name: Balzer, Arnim
name: Berge, David
name: Bolmont, Julien
name: Bonnefoy, Simon
name: Brun, Francois
name: Chaminade, Thomas
name: Delagnes, Eric
name: Fontaine, Gerard
name: Füßling, Matthias
name: Giavitto, Gianluca
name: Giebels, Berrie
name: Glicenstein, Jean-Francois
name: Gräber, Tobias
name: Hinton, Jim
name: Jahnke, Albert
name: Klepser, Stefan
name: Kossatz, Marko
name: Kretzschmann, Axel
name: Lefranc, Valentin
name: Leich, Holger
name: Lenain, Jean-Philippe
name: Lüdecke, Hartmut
name: Lypova, Iryna
name: Manigot, Pascal
name: Marandon, Vincent
name: Moulin, Emmanuel
name: Murach, Thomas
name: de Naurois, Mathieu
name: Nayman, Patrick
name: Ohm, Stefan
name: Penno, Marek
name: Ross, Duncan
name: Salek, David
name: Schade, Markus
name: Schwab, Thomas
name: Shiningayamwe, Kleopas
name: Stegmann, Christian
name: Steppa, Constantin
name: Tavernet, Jean-Paul
name: Thornhill, Julian
name: Toussnel, Francois
name: Vincent, Pascal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The High Energy Stereoscopic System (H.E.S.S.) is one of the three arrays of imaging atmospheric Cherenkov telescopes (IACTs) currently in operation. It is composed of four 12-meter telescopes and a 28-meter one, and is sensitive to gamma rays in the energy range ~30 GeV - 100 TeV. The cameras of the 12-m telescopes recently underwent a substantial upgrade, with the goal of improving their performance and robustness. The upgrade involved replacing all camera components except for the photomultiplier tubes (PMTs). This meant developing new hardware for the trigger, readout, power, cooling and mechanical systems, and new software for camera control and data acquisition. Several novel technologies were employed in the cameras: the readout is built around the new NECTAr digitizer chip, developed for the next generation of IACTs; the camera electronics is fully controlled and read out via Ethernet using a combination of FPGA and embedded ARM computers; the software uses modern libraries such as Apache Thrift, ZMQ and Protocol buffers. This work describes in detail the design and the performance of the upgraded cameras.
description: 35 pages, 14 figures, accepted for publication in "Astroparticle physics"
Aleuroglandulus subtilis Bondar
Creators: name: Martin, Jon H.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aleyrodidae
Aleuroglandulus
Aleuroglandulus subtilis

description: Aleuroglandulus subtilis Bondar
(Figs 35–37, 89)
 Aleuroglandulus subtilis Bondar, 1923: 121–122. Syntypes, Brazil.
 Aleuroglandulus emmae Russell, 1944: 5. Holotype, Mexico. Syn. nov.
 Aleuroglandulus malangae Russell, 1944: 5. Holotype, Cuba. Syn. nov.
DISTRIBUTION. Neotropical Region: Belize, Brazil, Costa Rica, Cuba, Dominican Republic, Ecuador, Mexico, Nicaragua, Panamá; Nearctic Region: USA (Florida).
 COMMENTS. Russell (1944) described three new species of Aleuroglandulus — A. emmae, A. magnus and A. malangae —each from very small numbers of specimens. A. emmae and A. magnus were described from seven and six specimens, respectively, taken from herbarium specimens or from quarantine interceptions, with even these small sample sizes representing two separate collections (A. magnus) and four collections (A. emmae). Although Russell said of the type sample of A. malangae “the insects [puparia] were abundant on the leaves submitted”, the description was prepared from only eight slidemounted individuals. Such small samples, especially where these represent several individual collections, do not allow an assessment of variability in such notoriously fluid characters as the sizes of glandular patches or the precise numbers of teeth in tracheal combs. Study of material in BMNH indicates that all specimens possessing the combination of leg­base spines, vasiform orifice inset from puparial margin by less than its own length, and well­defined prothoracic glands should be regarded as conspecific. Two large slide­mounted samples (Costa Rica, on Colocasia cultivar, n=50+; Belize, on Schizolobium parahybum, n=35) clearly indicate that the thoracic tracheal combs are highly variable within colonies. In contrast, two very small samples (Panamá, on Erythrina fusca, n=5 and unidentified host, n=2) demonstrate that the glands on abdominal segment III can vary from quite large to entirely absent within an individual colony, and the thoracic tracheal teeth from distinct­acute to hardly discernible. For these reasons, the decision has been taken to propose A. emmae and A. malangae as junior synonyms of A. subtilis.
description: Published as part of Martin, Jon H., 2005, Whiteflies of Belize (Hemiptera: Aleyrodidae) Part 2 - a review of the subfamily Aleyrodinae Westwood, pp. 1-116 in Zootaxa 1098 (1) on page 15, DOI: 10.11646/zootaxa.1098.1.1, http://zenodo.org/record/5051548
Incoherent vector vortex-mode solitons in self-focusing nonlinear media
Creators: name: Motzek, Kristian
name: Kaiser, Friedemann
name: Salgueiro, José R.
name: Kivshar, Yuri S.
name: Denz, Cornelia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We suggest a novel type of composite spatial optical soliton created by a coherent vortex beam guiding a partially incoherent light beam in a self-focusing nonlinear medium. We show that the incoherence of the guided mode may enhance, rather than suppress, the vortex azimuthal instability, and also demonstrate strong destabilization of dipole-mode solitons by partially incoherent light.
title: The Development of the U.K. National Regime for Oil and Gas, 1934-1981
Creators: name: Scoones, Martin Arthur
Publisher: name: The Open University
Year: 1985

description: Development of the regime is related to the bargaining relationship between the British Government and the oil companies, tracing its influence (together with domestic and international considerations) on the decision making process which shaped the regime's character from 1934 onwards, and comparing British experience with a model of the Oil Company-Government (1) relationship derived from Hossain. Both onshore in 1934, and offshore in the middle Sixties, certainty of ownership and access to the resources for exploitation, is shown to have been a precondition for investment. This was resolved in 1934 by taking these resources into Crown ownership, and in the middle Sixties through the negotiation of an internationally agreed U.K. Sector of the North Sea. Negotiations for the establishment of that Sector are considered, explaining why a Regional regime was not adopted for the North Sea. The subsequent resolution of cross boundary unitization by Britain and Norway is also considered. In the 1964 offshore regime, company possession of scarce technology is demonstrated to have secured the industry generally favourable terms (the weakness of the Government being reinforced by the rapid development policy) yet the position of British Gas as monopsony purchaser, obtained gas at well below market prices. In 1973 the Public Accounts Committee criticised the regime in its application to the then recently discovered northern oilfields. The state of development of those oilfields, and changes in the international oil industry are shown to have made these criticisms premature in 1973, though by 1975 when regime changes did occur, both those conditions had considerably matured. The bipartisan approach to policy was breached in 1975 with the formation of B.N.O.C., after which the Hossain model is inappropriate, since policy progressively diverged on ideological lines, which will be demonstrated both through the subsequent history of the Corporation, and other regime changes introduced by the Conservatives after 1979. A final conclusion observes that the Hossain model may yet have some current relevance, as a consequence of the massive investments needed to extend U.K. self sufficiency up to the next Century. (1) Hossain, Kamal. Law and policy in petroleum development: changing relations between transnationals and governments. London, Frances Pinter, 1979.
Body-terrain interaction affects large bump traversal of insects and legged robots
Creators: name: Gart, Sean W.
name: Li, Chen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Robotics (cs.RO)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Small animals and robots must often rapidly traverse large bump-like obstacles when moving through complex 3-D terrains, during which, in addition to leg-ground contact, their body inevitably comes into physical contact with the obstacles. However, we know little about the performance limits of large bump traversal and how body-terrain interaction affects traversal. To address these, we challenged the discoid cockroach and an open-loop six-legged robot to dynamically run into a large bump of varying height to discover the maximal traversal performance, and studied how locomotor modes and traversal performance are affected by body-terrain interaction. Remarkably, during rapid running, both the animal and the robot were capable of dynamically traversing a bump much higher than its hip height (up to 4 times the hip height for the animal and 3 times for the robot, respectively) at traversal speeds typical of running, with decreasing traversal probability with increasing bump height. A stability analysis using a novel locomotion energy landscape model explained why traversal was more likely when the animal or robot approached the bump with a low initial body yaw and a high initial body pitch, and why deflection was more likely otherwise. Inspired by these principles, we demonstrated a novel control strategy of active body pitching that increased the robot maximal traversable bump height by 75%. Our study is a major step in establishing the framework of locomotion energy landscapes to understand locomotion in complex 3-D terrains.
Scaling of the conductance in a quantum wire
Creators: name: Meden, V.
name: Andergassen, S.
name: Metzner, W.
name: Schollwoeck, U.
name: Schoenhammer, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The conductance G of an interacting nano-wire containing an impurity and coupled to non-interacting semi-infinite leads is studied using a functional renormalization group method. We obtain results for microscopic lattice models without any further idealizations. For an interaction which is turned on smoothly at the contacts we show that one-parameter scaling of G holds. If abrupt contacts are included we find power-law suppression of G with an exponent which is twice as large as the one obtained for smooth contacts and no one-parameter scaling. Our results show excellent agreement with the analytically known scaling function at Luttinger liquid parameter K=1/2 and numerical density-matrix renormalization group data.
description: 5 pages, 5 figures included; contains new results for the conductance in the presence of contacts
Source code of numerical model used in Kawai and Tomita (2021).
Creators: name: Kawa, Yuta
Publisher: name: Zenodo
Year: 2021
Subjects: large-eddy simulation, numerical accuracy, advection scheme

description: This archive contains source codes of numerical models and input files used in the paper "Numerical Accuracy of Advection Scheme necessary for Large-Eddy Simulation of Planetary Boundary Layer Turbulence" by Kawai and Tomita. The codes to analyze the simulation results are also contained.
KOMPSAT-2 geometric quality assessment for measuring the area of European land parcels
Creators: name: Nowak Da Costa, Joanna Krystina
name: Walczynska, Agnieszka
Publisher: name: Geographisches Institut der Universität zu Köln - Kölner Geographische Arbeiten
Year: 2011
Subjects: subject: Other
subject: None
subject: Remote Sensing Methods
subject: Remote Sensing

description: Measurement errors in orthorectified images are very important when it comes to checking the subsidies claims made by European farmers. The Control with a Remote Sensing (CwRS) Programme, managed by the GeoCAP and CID actions of the Monitoring Agricultural Resources Unit of the EC Joint Research Centre (JRC), requires the establishment of guidelines to be applied by Member States when using remotely sensed images to verify farmers’ claims under the EU Common Agriculture Policy (CAP) subsidies. The area of land parcels used for farming are verified based on very fine spatial resolution (VHR) orthoimages that must meet specific geometric and visual qualities. As such, all VHR orthoimages used within this context must meet or exceed the EU standard as reported in Kapnias et al. (2008), based on external quality control (EQC). EQC is based on the root mean square error (RMSE) between the true geographic position and the image position of the independent check points (ICPs). The ICPs are points not included in the sensor model parameter estimation process and are derived from an independent source, preferably of higher accuracy. This report presents the applied EQC methodology and the geometric quality results recorded for the four samples of the KOMPSAT-2 (K2) radiometrically corrected images (processing level 1R), acquired over the JRC Maussane Test Site. The key issues identified during the testing based on the limited KOMPSAT-2 sample images that were made available to us are as follows: (a) The 1D RMS errors measured on the final K2 orthoimage after the single scene correction applying either the PCI rigorous model, the PCI RPC-based or the ERDAS RPC-based model are not sensitive to the number of GCPs used if they are well-distributed and range between 9 and 15 (provided a DTM with 0.6 m vertical accuracy), and they are sensitive to the overall off-nadir angle and increase with increasing off-nadir angle, (b) The average 1D RMSE are 2.1 m and 4 m, while the maximum 1D RMSE values are 3.2 m and 6.2 m of easting and northing direction respectively, provided that a DTM with 0.6 m vertical accuracy and GCPs with mean RMSE-X (in X direction) and RMSE-Y (in Y direction) values of 0.6 m are used, and (c) The orthorectified KOMPSAT-2 images do not fall within the accuracy criteria of the CwRS 1:10000 scale requirements, i.e. an absolute 1D RMSE not exceeding 2.5 m, except where the images are characterized by an overall off-nadir angle close to zero degrees, and the rigorous model or first order Rational Polynomial sensor model is applied.
description: Proceedings on the Workshop of Remote Sensing Methods for Change Detection and Process Modelling, 18-19 November 2010, University of Cologne, Germany, Kölner Geographische Arbeiten, 92, pp. 109-115
On Special Relativity with Cosmological Constant
Creators: name: Guo, Han-Ying
name: Huang, Chao-Guang
name: Xu, Zhan
name: Zhou, Bin
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on the principle of relativity and the postulate of invariant speed and length, we propose the theory of special relativity with cosmological constant ${\cal SR}_{c,R}$ if the invariant length whose square is the inverse of the one-third cosmological constant of the universe. It is on the Beltrami-de Sitter spacetime ${\cal B}_R$ with de Sitter invariance. We define the observables of free particles and generalize famous Einstein's formula. We also define two kinds of simultaneity. The first is for local experiments and inertial motions. The second is for cosmological observations. Thus there is a relation between the relativity principle and the cosmological principle. We predict that the 3-d cosmic space is then of positive spatial curvature of order cosmological constant. The relation between ${\cal SR}_{c,R}$ and the doubly special relativity is briefly disucssed.
description: Revtex4 file, no figures
Unraveling the cooling trend of the Soft Gamma Repeater, SGR 1627-41
Creators: name: Kouveliotou, C.
name: Eichler, D.
name: Woods, P. M.
name: Lyubarsky, Y.
name: Patel, S. K.
name: Gogus, E.
name: van der Klis, M.
name: Tennant, A.
name: Wachter, S.
name: Hurley, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: SGR 1627-41 was discovered in 1998 after a single active episode which lasted \~6 weeks. We report here our monitoring results of the decay trend of the persistent X-ray luminosity of the source during the last 5 years. We find an initial temporal power law decay with index 0.47, reaching a plateau which is followed by a sharp (factor of ten) flux decline ~800 days after the source activation. The source spectrum is best described during the entire period by a single power law with high absorption (N_H=9.0(7)x10^(22) cm^(-2)); the spectral index, however, varies dramatically between 2.2-3.8 spanning the entire range for all known SGR sources. We discuss the cooling behavior of the neutron star assuming a deep crustal heating initiated by the burst activity of the source during 1998.
description: 12 pages, 2 figures, published in ApJ Letters corrected first paragraph of introduction
Radio Afterglows of Very High Energy Gamma-Ray Bursts 190829A and 180720B
Creators: name: Rhodes, L.
name: van der Horst, A. J.
name: Fender, R.
name: Monageng, I.
name: Anderson, G. E.
name: Antoniadis, J.
name: Bietenholz, M. F.
name: Bottcher, M.
name: Bright, J. S.
name: Kouveliotou, C.
name: Kramer, M.
name: Motta, S. E.
name: Williams, D. R. A.
name: Woudt, P. A.
name: .
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present high cadence multi-frequency radio observations of the long Gamma-Ray Burst (GRB) 190829A, which was detected at photon energies above 100 GeV by the High Energy Stereoscopic System (H.E.S.S.). Observations with the Meer Karoo Array Telescope (MeerKAT, 1.3 GHz), and Arcminute Microkelvin Imager - Large Array (AMI-LA, 15.5 GHz) began one day post-burst and lasted nearly 200 days. We used complementary data from Swift X-Ray Telescope (XRT), which ran to 100 days post-burst. We detected a likely forward shock component with both MeerKAT and XRT up to over 100 days post-burst. Conversely, the AMI-LA light curve appears to be dominated by reverse shock emission until around 70 days post-burst when the afterglow flux drops below the level of the host galaxy. We also present previously unpublished observations of the other H.E.S.S.-detected GRB, GRB 180720B from AMI-LA, which shows likely forward shock emission that fades in less than 10 days. We present a comparison between the radio emission from the three GRBs with detected very high energy (VHE) gamma-ray emission and a sensitivity-limited radio afterglow sample. GRB 190829A has the lowest isotropic radio luminosity of any GRB in our sample, but the distribution of luminosities is otherwise consistent, as expected, with the VHE GRBs being drawn from the same parent distribution as the other radio-detected long GRBs.
description: Accepted for publication in MNRAS
Aleuroparadoxus Quaintance & Baker
Creators: name: Martin, Jon H.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aleyrodidae
Aleuroparadoxus

description: ALEUROPARADOXUS Quaintance & Baker
 Aleuroparadoxus Quaintance & Baker, 1914: 105. Type species Aleyrodes iridescens Bemis, 1904: 487–489 by monotypy.
 DIAGNOSIS AND COMMENTS. As interpreted here, Aleuroparadoxus comprises species with puparia (Figs 19–21, 90–93) that display the following combination of characters: puparia ovoid to slightly wider than long; cuticle usually dark brown to black and with little evident secreted wax; margin crenulate, modified at thoracic tracheal openings; dorsal papillae present, usually with a submarginal row and others present on dorsal disc, the papillae variably developed but usually some rather flat, plate­like; transverse moulting sutures reach submargin; median lengths of abdominal segments VI & VII similar; each cephalic seta situated at lateral apex of a shallow, thumb­shaped ridge; vasiform orifice cordate, fully occupied by operculum, lingula head lobulate but covered by operculum; with a short caudal furrow, defined by a pair of variably developed caudal ridges which terminate at the pair of caudal setae; ventrally, tracheal folds well defined and legs lined mesally by a band of blunt spinules.
 Russell (1947) revised this New World genus, comprising ten described species, assigning the genus to the tribe Trialeurodini. Russell noted the propensity for puparia of Aleuroparadoxus species to develop readily on both leaf surfaces, and she further noted that morphological differences were not evident between upper and lower­surface individuals. Five species are known from Belize, three of them described and two that remain undescribed. No colonies have been discovered in Belize, all specimens having been found singly.
description: Published as part of Martin, Jon H., 2005, Whiteflies of Belize (Hemiptera: Aleyrodidae) Part 2 - a review of the subfamily Aleyrodinae Westwood, pp. 1-116 in Zootaxa 1098 (1) on page 16, DOI: 10.11646/zootaxa.1098.1.1, http://zenodo.org/record/5051548
DISPARITY IN ADOPTION OF WHEAT PRODUCTION TECHNOLOGY PACKAGES IN EASTERN ETHIOPIA
Creators: name: KEBEDE, Degefu
name: KETEMA, Mengistu
name: DECHASSA, Nigussie
name: KEBEDE, Degefu
name: KETEMA, Mengistu
name: DECHASSA, Nigussie
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Farm Management
subject: disparity in technology adoption
subject: ordered logit
subject: smallholder farmers
subject: socio-economic factors
subject: wheat technology package

description: Production of wheat by smallholder farmers in Ethiopia contributes a significant share to the agricultural production of the country. However, the actual productivity of the crop has been far below its potential. Varied levels of technology adoption are often observed among smallholder farmers producing the crop. For enhanced dissemination of technology packages and improving wheat productivity, it is vital to elucidate socio-economic factors that are behind disparity in technology adaption among smallholder farmers. Therefore, this study was conducted to analyse the socio-economic, institutional, and other pertinent variables that determine the existing disparity observed among smallholder farmers in terms of adopting wheat production technology packages in Gurawa and Meta districts of eastern Ethiopia. The study utilized survey data collected from 124 randomly selected wheat households producing wheat. For this purpose, an ordered logit model was applied. The econometric results revealed that age of the household head, membership in cooperative institutions, and household annual income significantly and positively explained the disparity observed in adoption of wheat production technology packages. Conversely, gender of household head (sex), farming experiences, number of plots owned, and frequency of contacts with extension agents explained the disparity significantly, but negatively. It could be concluded that development practitioners, planners, and policy makers should give due considerations to the aforementioned socio-economic and institutional factors when designing dissemination of wheat production technology packages for adoption by farmers.
description: doi: 10.15414/raae.2017.20.02.22-29 https://roaae.org/issue/review-of-agricultural-and-applied-economics-raae-vol-20-no-22017/?article=disparity-in-adoption-of-wheat-production-technology-packages-in-eastern-ethiopia
Graphether: A Two-Dimensional Oxocarbon as a Direct Wide-Gap Semiconductor with High Mechanical and Electrical Performances
Creators: name: Zhu, Gui-Lin
name: Ye, Xiao-Juan
name: Liu, Chun-Sheng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Although many graphene derivatives have sizable band gaps, their electrical or mechanical properties are significantly degraded due to the low degree of π-conjugation. Besides the π-π conjugation, there exists hyperconjugation interactions arising from the delocalization of σ electrons. Inspired by the structural characteristics of a hyperconjugated molecule, dimethyl ether, we design a two-dimensional oxocarbon (named graphether) by the assembly of dimethyl ether molecules. Our first-principle calculations reveal the following findings: (1) Monolayer graphether possesses excellent dynamical and thermal stabilities as demonstrated by its favourable cohesive energy, absence of the soft phonon modes, and high melting point. (2) It has a direct wide-band-gap of 2.39 eV, indicating its potential applications in ultraviolet optoelectronic devices. Interestingly, the direct band gap feature is rather robust against the external strains (-10% to 10%) and stacking configurations. (3) Due to the hyperconjugative effect, graphether has the high intrinsic electron mobility. More importantly, its in-plane stiffness (459.8 N m-1) is even larger than that of graphene. (4) The Pt(100) surface exhibits high catalytic activity for the dehydrogenation of dimethyl ether. The electrostatic repulsion serves as a driving force for the rotation and coalescence of two dehydrogenated precursors, which is favourable for the bottom-up growth of graphether. (5) Replacement of the C-C bond with an isoelectronic B-N bond can generate a stable Pmn21-BNO monolayer. Compared with monolayer hexagonal boron nitride, Pmn21-BNO has a moderate direct band gap (3.32 eV) and better mechanical property along the armchair direction.
description: Manuscript and Supplementary Information
Additional file 1 of Understanding in the Australian aged care sector of reablement interventions for people living with dementia: a qualitative content analysis
Creators: name: Oâ€™Connor, Claire
name: Gresham, Meredith
name: Poulos, Roslyn
name: Clemson, Lindy
name: McGilton, Katherine
name: Cameron, Ian
name: Hudson, Wendy
name: Radoslovich, Helen
name: Jackman, Joan
name: Poulos, Christopher
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: 60506 Virology

description: Additional file 1. Supplement 1.
Code Development of Three-Dimensional General Relativistic Hydrodynamics with AMR(Adaptive-Mesh Refinement) and Results From Special and General Relativistic Hydrodynamic
Creators: name: Donmez, Orhan
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, the general procedure to solve the General Relativistic Hydrodynamical(GRH) equations with Adaptive-Mesh Refinement (AMR) is presented. In order to achieve, the GRH equations are written in the conservation form to exploit their hyperbolic character. The numerical solutions of general relativistic hydrodynamic equations are done by High Resolution Shock Capturing schemes (HRSC), specifically designed to solve non-linear hyperbolic systems of conservation laws. These schemes depend on the characteristic information of the system. The Marquina fluxes with MUSCL left and right states are used to solve GRH equations. First, different test problems with uniform and AMR grids on the special relativistic hydrodynamics equations are carried out to verify the second order convergence of the code in 1D, 2D and 3D. Results from uniform and AMR grid are compared. It is found that adaptive grid does a better job when the number of resolution is increased. Second, the general relativistic hydrodynamical equations are tested using two different test problems which are Geodesic flow and Circular motion of particle In order to this, the flux part of GRH equations is coupled with source part using Strang splitting. The coupling of the GRH equations is carried out in a treatment which gives second order accurate solutions in space and time.
description: 18 pages, 13 figures. Accepted for publication in Astrophysics and Space Science
Independent Electronic and Magnetic Doping in (Ga,Mn)As Based Digital Ferromagnetic Heterostructures
Creators: name: Johnston-Halperin, E.
name: Schuller, J. A.
name: Gallinat, C. S.
name: Kreutz, T. C.
name: Myers, R. C.
name: Kawakami, R. K.
name: Knotz, H.
name: Gossard, A. C.
name: Awschalom, D. D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Ferromagnetic semiconductors promise the extension of metal-based spintronics into a material system that combines widely tunable electronic, optical, and magnetic properties. Here, we take steps towards realizing that promise by achieving independent control of electronic doping in the ferromagnetic semiconductor (Ga,Mn)As. Samples are comprised of superlattices of 0.5 monolayer (ML) MnAs alternating with 20 ML GaAs and are grown by low temperature (230 C) atomic layer epitaxy (ALE). This allows for the reduction of excess As incorporation and hence the number of charge-compensating As-related defects. We grow a series of samples with either Be or Si doping in the GaAs spacers (p- and n-type dopants, respectively), and verify their structural quality by in situ reflection high-energy electron diffraction (RHEED) and ex situ x-ray diffraction. Magnetization measurements reveal ferromagnetic behavior over the entire doping range, and show no sign of MnAs precipitates. Finally, magneto-transport shows the giant planar Hall effect and strong (20%) resistance fluctuations that may be related to domain wall motion.
description: Submitted to Physical Review B. 30 pages, 9 figures