cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Finite Volume Method for Continuum Limit Equations of Nonlocally Interacting Active Chiral Particles
Creators: name: Kruk, Nikita
name: Carrillo, José A.
name: Koeppl, Heinz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The continuum description of active particle systems is an efficient instrument to analyze a finite size particle dynamics in the limit of a large number of particles. However, it is often the case that such equations appear as nonlinear integro-differential equations and purely analytical treatment becomes quite limited. We propose a general framework of finite volume methods (FVMs) to numerically solve partial differential equations (PDEs) of the continuum limit of nonlocally interacting chiral active particle systems confined to two dimensions. We demonstrate the performance of the method on spatially homogeneous problems, where the comparison to analytical results is available, and on general spatially inhomogeneous equations, where pattern formation is predicted by kinetic theory. We numerically investigate phase transitions of particular problems in both spatially homogeneous and inhomogeneous regimes and report the existence of different first and second order transitions.
The EMF: topics for discussion. A comment
Creators: name: SHONFIELD, A.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, credit mechanisms, exchange rate arrangements, ECU
subject: F33, F36

description: A comment on Tommaso Padoa-Schioppa’s paper The EMF: topics for discussion, presented at the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
title: An investigation of time-dependent behavior of medium density polyethylene pipes
Creators: name: Das, Suprio
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: Medium density polyethylene (MDPE) pipes are extensively used for gas distribution system in Canada and worldwide. MDPE pipe material possesses time-dependent mechanical properties that governs the performance of the pipes in service. In this research, laboratory investigation is carried out to investigate the time-dependent behavior of a MDPE pipe material. Uniaxial tensile tests were conducted with samples (coupons) cut from the wall of a 60-mm diameter MDPE pipe. A tensile test with a sample of full cross-section of the pipe is also conducted to investigate the influence of sample type on the test results. The test program includes uniaxial testings at various strain rates to capture the effects of loading rates, creep testing and relaxation testing. The experimental results are used to develop a numerical approach for modeling the time-dependent behavior using a commercially available finite element software, Abaqus. The strain-rate dependent material behavior of MDPE is incorporated in Abaqus through development of a user subroutine. The proposed modeling approach is found to successfully simulate the uniaxial test results. Applicability of the proposed modeling framework is demonstrated through investigating the time-dependent behavior of conventional buried MDPE pipe subjected to surface load and a pipeline subjected to rate-dependent lateral ground movement.
Turbidite Reservoirs of the Sele Formation, Central North Sea
Creators: name: M. HEMPTON
name: J. MARSHALL
name: S. SADLER
name: N. HOGG
name: R. CHARLES
name: C. HARVEY
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: These cored sections have been chosen to illustrate variation in the Forties reservoir from relatively proximal in the main Forties fan (Nelson) to more distal (Pierce) and distal with significant deformation in a lateral fan (Merganser). The two Nelson cores show the contrast between what have been defined as channel and interchannel areas, with channel areas carrying permeabilities of the order of 300 mD. Three sections from the Pierce well 23/22a-3 have been selected to show the persistence of channelised sands into distal areas of the fan, along with finer grained intervals. The two Merganser sections show relatively undeformed Forties sandstones with a basal faulted contact, overlying Lista heterolithics with the pervasive deformation that often occurs where fields are affected by salt growth during and shortly after deposition.
HOST SPECIFICITY OF PUTATIVE ANTHRACNOSE TOXINS FROM Colletotrichum gloeosporioides
Creators: name: Alleyne, Angela T.
name: O'Garro, Leonard
name: Delaunay, Ashton J.
name: Alleyne, Angela T.
name: O'Garro, Leonard
name: Delaunay, Ashton J.
Publisher: name: Unknown
Year: 1995
Subjects: Crop Production/Industries
Food Security and Poverty

description: Anthracnose of crop plants caused by the fungus Colletotrichum gloeosporioides (PENZ) is a common disease in the Caribbean. The fungus has caused considerable decline in crop output, notably productivity. Putative toxins were extracted from culture filtrates of the fungus isolated from diseased yam (Dioscorea alata L. cv. White Lisbon), coffee, and anthurium plants and tested on a number of plant genotypes. Partially characterized, putative toxins from yam isolates of the fungus induced typical anthracnose symptoms on yam, but not on citrus (Citrus spp. L.), mango (Mangifera indica L.), avocado (Persea americana Mill.), soursop (Anona muricata L.) and anthurium plants. Similarly putative toxins induced foliar symptoms only on the respective host plant from which isolates were obtained. Furthermore, the viability of yam cell suspensions was also affected by the putative toxin.
SHIFT FROM COPPER-RESISTANCE TO ZINC-RESISTANCE IN BARBADIAN POPULATIONS OF Xanthomonas campestris pv. vesicatoria, CAUSAL AGENT OF BACTERIAL SPOT OF PEPPER AND TOMATO
Creators: name: Gore, Janil P.
name: O'Garro, Leonard W.
name: Gore, Janil P.
name: O'Garro, Leonard W.
Publisher: name: Unknown
Year: 1995
Subjects: Food Security and Poverty
Research and Development/Tech Change/Emerging Technologies

description: Research monitoring bacterial spot of pepper and tomato (caused by Xanthomonas campestris ρ v. vesicatoria) in Barbados over the past 11 years has shown a shift from copper- resistance to zinc-resistance in the pathogen population. This observation parallels a change from copper to zinc formulations as the main chemical control agents of bacterial spot. This paper addresses a strategy for chemical control of bacterial spot.
New constructions of glulam beams in Canada
Creators: name: Mohadevan, Nahulesalingam
Publisher: name: University of British Columbia
Year: 2011

description: An optimized 24f glulam beam lay-up has been investigated with a series of laboratory testing and computer modeling. The basic ideas of these assessments are to increase the efficient use of timber resource in the glulam construction with integration of reliability based procedures to characterize the specified strengths for the glulam beams. During this study, existing grade specifications in the Canadian Standards have been refined. Five new Douglas fir lamina grades (T1, Cc, B, C and D) and their tensile strength data have been established. Finite element glulam analysis program ULAG has been used for the primary beam modeling and analysis. New routines to account for the laminating effects on the beam strength and to evaluate the shear capacity of the glulam beams have been incorporated in the ULAG program. The shear stress output from the finite element analysis has been integrated to consider weakest link stress volume effect for the shear capacity assessment. Subsequently 24f glulam beams have been successfully simulated using the refined ULAG program. A similar analysis based on ASTM D3737 has been carried out using the US-GAP program based on a detailed knot survey on the new lamina grades. The model has been calibrated by full scale test results. The model predictions and the corresponding assessments have been further validated by a second set of full scale glulam bending and shear tests. Glulam beams 305 mm and 610 mm deep, have been tested to assess the flexural strength. Three sets of glulam beams, 305 mm and 457 mm deep have been tested at short span to depth ratios to determine the shear capacity. Excellence prediction accuracy by ULAG has been confirmed.
The EMF: external relations
Creators: name: POLAK J.J., J.J.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, IMF, ECU, SDR, EMS, financial aspects
subject: F33, F36

description: This paper was presented at the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. The author contrasts the EMF and IMF and explores the relationship between these two institutions and between the ECU and the SDR. Focus is placed on the technical aspects of the EMS as it exists now and of the EMF as it may take shape in the future. Rather than attempting to cover their broad economic impact, a number of interrelated financial aspects of these institutions are considered. The “external aspects” of the EMS, according to the author, are part and parcel of the considerations that should motivate Europeans in defining their position on various aspects of the future EMF. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
The EMF: external relations. A comment
Creators: name: LANGUETIN, P.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, IMF, ECU, SDR, EMS, financial aspects
subject: F33, F36

description: A comment on Jacques J. Polak’s paper The EMF: external relations, presented at the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
Parametrizations of the Seesaw, or, can the Seesaw be tested?
Creators: name: Davidson, Sacha
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This proceedings contains a review, followed by a more speculative discussion. I review different coordinate choices on the 21-dimensional parameter space of the seesaw, and which of these 21 quantities are observable. In MSUGRA, there is a 1-1 correspondance between the parameters, and the interactions of light (s)particles. However, not all of the 21 can be extracted from data, so the answer to the title question is ``no''. How to parametrise the remaining unknowns is confusing--different choices seem to give contradictory results (for instance, to the question ``does the Baryon Asymmetry depend on the CHOOZ angle?''). I speculate on possible resolutions of the puzzle.
description: Proceedings for Seesaw'25 in Paris, 12 pages
General Relativity and Neutrino-driven Supernova Winds
Creators: name: Cardall, Christian Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To date, detailed core-collapse supernova simulations have not succeeded in elucidating the explosion mechanism. But whatever the mechanism turns out to be, there will be a neutrino-heated outflow between the hot, newly-born neutron star and the outgoing supernova shock wave whose neutron richness, low density, and high temperature could provide promising conditions for the synthesis of heavy nuclei via rapid neutron capture (the r-process). General relativistic effects improve the prospects for this outflow as an r-process site. Among relativistic effects, the enhanced "gravitational potential" is more important than the gravitational redshift or trajectory bending of neutrinos.
description: 10 pages, 3 figures. Talk presented at First Argonne/MSU/JINA/INT RIA Workshop, The r-process: the astrophysical origin of the heavy elements and related Rare Isotope Acclerator Physics, January 8-10, 2004, at the Institute for Nuclear Theory, Seattle, Washington. Proceedings to be published by World Scientific
Time-resolved homodyne characterization of individual quadrature-entangled pulses
Creators: name: Wenger, Jerome
name: Ourjoumtsev, Alexei
name: Tualle-Brouri, Rosa
name: Grangier, Philippe
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a simple and efficient setup to generate and characterize femtosecond quadrature-entangled pulses. Quantum correlations equivalent to about 2.5 dB squeezing are efficiently and easily reached using the non-degenerate parametric amplification of femtosecond pulses through a single-pass in a thin (0.1 mm) potassium niobate crystal. The entangled pulses are then individually sampled to characterize the non-separability and the entropy of formation of the states. The complete experiment is analysed in the time-domain, from the pulsed source of quadrature entanglement to the time-resolved homodyne detection. This particularity allows for applications in quantum communication protocols using continuous-variable entanglement.
description: 7 pages, 5 figures
EFFECT OF TEMPERATURE ON THE POTENTIAL OF THREE HETERORHABDITID NEMATODES FROM THE CARIBBEAN BASIN AND NORTH AMERICA AS BIOLOGICAL CONTROL AGENTS OF THE SWEET POTATO WEEVIL, Cylas formicarius(Fabricius) (Coleoptera: Apionidae)
Creators: name: Lawrence, Janet L.
name: Jansson, Richard K.
name: Barfield, Carl S.
name: Lawrence, Janet L.
name: Jansson, Richard K.
name: Barfield, Carl S.
Publisher: name: Unknown
Year: 1995
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Two heterorhabditid entomopathogenic nematode species from the Caribbean (Heterorhabditis sp. Dl - JAM34, Heterorhabditis sp. - El Yunque) and one heterorhabditid nematode from North America (H. bacteriophora, HP88) were evaluated for their ability lo survive in soil at temperatures between 11 and 35 "C and subsequently infect and reproduce in late instar larvae of the sweet potato weevil, Cylas fortnicarius (Fabricius) (Coleoptera: Apionidae). The tolerance of the three nematode species to soil temperature appeared to be related to their climatic origin. One of the species from the Caribbean, Heterorhabditis sp. D1 strain (JAM34), was more tolerant of warmer temperatures than the North American nematode H.bacteriophora HP88 strain. HP88 was also better adapted to cooler temperatures than JAM34. Heterorhabditis sp. El Yunque, a novel species, was isolated from higher elevations (600 m) in Puerto Rico and was least tolerant to test temperatures. These data indicate that interspecific differences may occur among heterorhabditid species in their tolerance to soil temperatures. The importance of these data in developing an integrated pest management strategy for the sweet potato weevil in the Caribbean is discussed.
MODELLING THE WATER BALANCE OF CUT ANTHURIUMS IN STORAGE
Creators: name: Mujaffar, S.
name: Sankat, C. K.
name: Mujaffar, S.
name: Sankat, C. K.
Publisher: name: Unknown
Year: 1995
Subjects: Crop Production/Industries
Production Economics

description: Expérimental trials were conducted to investigate the basic components of water balance (water uptake, transpiration, water accumulation) and their relationship to senescence and vase life in cut anthuriums stored under ambient and refrigerated conditions. Anthuriums were held in distilled water and stored under ambient conditions (28 °C; rh 60-80%) and in refrigerated storage chambers set at 18, 13 and 8 °C (rh 80-90%) for a maximum of 30 days. Water uptake, transpiration, water accumulation, flower fresh weight, moisture content and keeping quality (determined through spathe blueing, spathe gloss, spadix necrosis and abscission) were monitored at 5-day intervals. Storage of anthuriums in water at 18 and 13 °C extended shelf-life. The changes in water uptake, transpiration, transpiration:uptake ratio, fresh weight and moisture content were accurately described by logarithmic, exponential and inverse quadratic models. Post-harvest life was directly related to flower turgidity and the rate of water accumulation, which was dependent on the balance between the rates of uptake and transpiration.
The EMF: external relations. A comment
Creators: name: MUNDELL, R.A.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, IMF, ECU, SDR, EMS, financial aspects
subject: F33, F36

description: A comment on Jacques J. Polak’s paper The EMF: external relations, presented at the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
The EMF: concluding remarks
Creators: name: THYGESEN, N.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, EMU, European integration
subject: F33, F36

description: The European Monetary Fund was the subject of the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. In these concluding remarks, the author summarises some of the main points of discussion and offers some further considerations. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
The EMF: concluding remarks
Creators: name: VAN YPERSELE, J.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, EMU, European integration
subject: F33, F36

description: The European Monetary Fund was the subject of the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. In these concluding remarks, the author summarises some of the main points of discussion and offers some further considerations. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
A flash in the dark: UVES/VLT high resolution spectroscopy of GRB afterglows
Creators: name: Fiore, F.
name: D'Elia, V.
name: Lazzati, D.
name: Perna, R.
name: Sbordone, L.
name: Stratta, G.
name: Meurs, E. J. A.
name: Ward, P.
name: Antonelli, L. A.
name: Chincarini, G.
name: Covino, S.
name: Di Paola, A.
name: Fontana, A.
name: Ghisellini, G.
name: Israel, G.
name: Frontera, F.
name: Marconi, G.
name: Stella, L.
name: Vietri, M.
name: Zerbi, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first high resolution (R=20000--45000, corresponding to 14 km/s at 4200A to 6.6 km/s at 9000A) observations of the optical afterglow of Gamma Ray Bursts. GRB020813 and GRB021004 were observed by UVES@VLT 22.19 hours and 13.52 hours after the trigger, respectively. These spectra show that the inter--stellar matter of the GRB host galaxies is complex, with many components contributing to each main absorption system, and spanning a total velocity range of up to about 3000 km/s. Several narrow components are resolved down to a width of a few tens of km/s. In the case of GRB021004 we detected both low and high ionization lines. Combined with photoionization results obtained with CLOUDY, the ionization parameters of the various systems are consistent with a remarkably narrow range with no clear trend with system velocity. This can be interpreted as due to density fluctuations on top of a regular R^-2 wind density profile.
description: Most figure improved, a few typos corrected, added a new subsection. ApJ in press
FUNDING AGRICULTURAL RESEARCH
Creators: name: Chandler, Jeff St A.
name: Persad-Chinnery, Susan B.
name: Chinnery, Louis E.
name: Chandler, Jeff St A.
name: Persad-Chinnery, Susan B.
name: Chinnery, Louis E.
Publisher: name: Unknown
Year: 1995
Subjects: Research and Development/Tech Change/Emerging Technologies
Teaching/Communication/Extension/Profession

description: Many models for funding agricultural research, development and technology dissemination have been tried As demands on government finances increase, questions are being asked about all governmental expenditure. Some of the current structures in the Eastern Caribbean are reviewed. The use of levies on imports and exports of agricultural/horticultural products is discussed. The potential benefits of a competitive grant-funded scheme are considered. This paper is designed to promote discussion.
EXTENSION SERVICES FOR AGRICULTURAL MARKETING
Creators: name: Mungroo, N.
name: Seppersad, J.
name: Mungroo, N.
name: Seppersad, J.
Publisher: name: Unknown
Year: 1995
Subjects: subject: Farm Management
subject: Marketing
subject: FOS: Economics and business

description: In the simplest form agricultural marketing can be defined as working with actual and potential buyers of a product to bring about exchanges to meet the requirements of the consumer. Marketing extension covers all marketing activities from production to the retail level and can be effective in putting the farmers in touch with the reality of the market. With growing globalization of markets and increasing reliance throughout the world on the open market, the role of marketing extension will become increasingly important. It has become increasingly accepted that for farmers to increase their production and income, adequate attention must be paid to marketing. The small farm sector needs to be commercialized by developing market-oriented production. Successful commercialization of this sector will depend on the orientation of production to meet market demands. This paper provides some information on the agricultural marketing systems that exists in Trinidad, farmers' decision as to the choice of crops grown and attempts to analyze how best marketing extension can be earned out within the present extension service.
Big Bang Nucleosynthesis constraints on sterile neutrino and lepton asymmetry of the Universe
Creators: name: Gelmini, Graciela B.
name: Kawasaki, Masahiro
name: Kusenko, Alexander
name: Murai, Kai
name: Takhistov, Volodymyr
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the cosmological effects of sterile neutrinos with the masses of $150- 450$ MeV. The decay of sterile neutrinos changes the thermal history of the Universe and affects the energy density of radiation at the recombination and the big bang nucleosynthesis (BBN) results. We derive severe constraints on the parameters of sterile neutrinos from the primordial abundances of helium-4 and deuterium. We also find that in a particular model the constraints can be considerably relaxed by assuming a large lepton asymmetry in the active neutrinos. In this case, the consistent parameters result in $N_{\mathrm{eff}} \simeq 3.2- 3.4$ and can alleviate the Hubble tension.
description: 34 pages, 15 figures
Charm production and energy loss at the LHC with ALICE
Creators: name: Dainese, Andrea
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The latest results on the ALICE performance for production and in-medium QCD energy loss measurements of charm particles at the LHC are presented.
description: 8 pages, 3 figures, prepared for the proceedings of the "Physics at LHC" conference, Vienna, 13-17 July 2004
title: The analysis of a mouse model of Lysosomal Storage Disorder uncovers a role for astrocyte dysfunction in neurodegeneration
Creators: name: Di Malta, Chiara
Publisher: name: The Open University
Year: 2012

description: Astrocytes are the most abundant cellular population in the brain and their role in neurodegenerative processes is becoming increasingly appreciated. In my PhD project, I investigated the contribution of astrocytes to neurodegeneration in Multiple Sulfatase Deficiency (MS D), a severe Lysosomal Storage Disorder (LSD) caused by mutations in the Sulfatase Modifying Factor 1 (SUMF1) gene. Using Cre/Lox mouse models, I found that astrocyte-specific deletion of Sumf1 in vivo induced severe lysosomal storage and autophagy dysfunction with consequential cytoplasmic accumulation of toxic substrates. Lysosomal storage in astrocytes was sufficient to induce degeneration of cortical neurons in vivo, whereas other neuronal populations were spared. Furthermore, in an ex vivo co-culture assay, I observed that Sumf1-/- astrocytes failed to support the survival and function of wild type cortical neurons, suggesting a non-cell autonomous mechanism for neurodegeneration in LSDs. Compared to the astrocyte-specific deletion of Sumf1, the concomitant deletion of Sumf1 in both neurons and glia in vivo induced a widespread neuronal loss and robust neuroinflammation. Finally, behavioural analysis of mice with astrocyte-specific deletion of Sumf1 compared to mice with Sumf1 deletion in both astrocytes and neurons allowed me to link a subset of neurological manifestations of LSDs to astrocyte dysfunction. This study indicates that astrocytes are integral components of the neuropathology in LSDs and that modulation of astrocyte function may impact the disease course.
A note on the wellposedness of scalar brane world cosmological perturbations
Creators: name: Deffayet, Cédric
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss scalar brane world cosmological perturbations for a 3-brane world in a maximally symmetric 5D bulk. We show that Mukoyama's master equations leads, for adiabatic perturbations of a perfect fluid on the brane and for scalar field matter on the brane, to a well posed problem despite the "non local" aspect of the boundary condition on the brane. We discuss in relation to the wellposedness the way to specify initial data in the bulk.
description: 14 pages, one figure, v2 minor changes
From spit system to tide-dominated delta: integrated reservoir model of the upper Jurassic Sognefjord Formation on the Troll West Field
Creators: name: T. DREYER
name: M. WHITAKER
name: J. DEXTER
name: H. FLESCHE
name: E. LARSEN
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: The late Jurassic Sognefjord Formation is the main reservoir unit on the giant Troll West field, and its sedimentology and stratigraphy are discussed in an accompanying paper (Dreyer et al., this volume). The Sognefjord Formation was deposited in a shallow-marine setting characterized by wave-, tide- and fluvial depositional processes. Sediments were brought into the area mainly from the NE, and initially distributed by strong longshore currents downdrift from the mouth-bar area. The coastal morphology was that of an elongated spit sandbar up to 40 km in length. Seaward of the spit, a moderately steep shoreface existed (see cores from 31/2-18), characterized by wave- and storm-related processes (see cores from 31/2-F-6 H). Pronounced clinoforms extending from the spit platform (topsets) to the offshore transition (bottomsets) are clearly visible on seismic data. Landward of the spit, a major embayment existed, in which fluvial and tidal processes were dominant. The distribution of reservoir sandstones reflects this morphology, with the high reservoir quality units mainly corresponding to the spit sandbar. At the transition between the middle and late Oxfordian, a marked relative sealevel fall created an extensive unconformity (see cores 31/2-18 and 31/5-H-5 H) and led to a major change in coastal morphology. The sediments from this upper part of the Sognefjord Formation were formed in a tide-dominated deltaic setting, and in general have a more heterolithic character (see cores 31/2-18 and 31/5-H-5 H). Estuarine sandbars, tidal channels and sandy portions of tidal flat represent the main oil-bearing targets.
The Mittelplate Oil Field
Creators: name: M. DOEHLER
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: The Mittelplate Oil Field with its 950 MMBOIP is Germany's largest oil field and lays offshore Germany in the coastal tidal flats about 100 km northwest of Hamburg at the mouth of the river Elbe estuary and some 25 km northeast of Cuxhaven. It is located in the West Holstein Jura Trough with its flanking salt walls Oldensworth and Heide. The discovery well Mittelplate-1 was drilled in 1980 by the consortium RWE Dea AG and Wintershall AG. The prospects targeted by the Mittelplate-1 well were stacked Middle Jurassic Dogger sandstone reservoirs. At the time only 2D data was available to the group and only few seismic lines defined the play. The discovery well encountered two separate oil columns within the Middle Jurassic 'Mittelplate' sands and when tested flowed low gravity oil from four sandstone reservoir horizons at a depth between 2134-2743 mTVD. In 1981 three appraisal wells were drilled confirming the structure with today's proven recoverable reserves to be at around 220 MMBO. The distance of the field towards the coast is between seven and thirteen kilometres and its NS extension of more than 10 km is straddling along the western flank of the Büsum salt dome. After building an artificial drilling and production island in 1985, 15 wells have been drilled since 1986 from the Mittelplate-A platform draining the central part of the field. Along with acquiring of new 3D seismic in 1997 in the area between the appraisal wells Mittelplate-2 and Mittelplate-3, a pilot project was initiated to develop the field through extended reach wells from onshore. Three wells were drilled from the Mittelplate island to the salt dome to verify geology and drilling requirements. At the same time one well, the Dieksand-1 was drilled from the shore to investigate the situation from the onshore side. After only half a year of engineering time the first extended reach well, Dieksand-2 was spudded, drilled more than 3600 m horizontally through the Büsum salt dome and was successfully completed at a TD of 7727 m in 1998. Since then a further six ERD wells have been drilled from onshore reaching a maximum length of 9275 m MD. Since nearly 17 years of undisturbed and accident free operation, the Mittelplate group is now at the planning stage to investigate the development of the southern and northern part of the field with horizontal wells of more than 8 km to develop and drain the remaining 350 MMBO of proven and probable reserves.
Averaging principle and normal deviations for multiscale stochastic systems
Creators: name: Röckner, Michael
name: Xie, Longjie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H10, 60J60, 60F05

description: We study the asymptotic behavior for an inhomogeneous multiscale stochastic dynamical system with non-smooth coefficients. Depending on the averaging regime and the homogenization regime, two strong convergences in the averaging principle of functional law of large numbers type are established. Then we consider the small fluctuations of the system around its average. Nine cases of functional central limit type theorems are obtained. In particular, even though the averaged equation for the original system is the same, the corresponding homogenization limit for the normal deviation can be quite different due to the difference in the interactions between the fast scales and the deviation scales. We provide quite intuitive explanations for each case. Furthermore, sharp rates both for the strong convergences and the functional central limit theorems are obtained, and these convergences are shown to rely only on the regularity of the coefficients of the system with respect to the slow variable, and do not depend on their regularity with respect to the fast variable, which coincide with the intuition since in the limit equations the fast component has been totally averaged or homogenized out.
description: 49 pages
Covid-19 or the pandemic of mistreated biodiversity
Creators: name: Grandcolas, Philippe
name: Justine, Jean-Lou
Publisher: name: figshare
Year: 2020
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: A short paper in The Conversation about the covid-19 pandemic and its origin.
EXPLOITING NICHE MARKETS FOR DOMESTIC PRODUCE: - A CASE FOR LAMB IN TRINIDAD AND TOBAGO
Creators: name: Hosein, Aman A.
name: Craig, Kelvin
name: Hickson, Randolph
name: Patterson, Harold
name: Basdeo, Rishi
name: Hosein, Aman A.
name: Craig, Kelvin
name: Hickson, Randolph
name: Patterson, Harold
name: Basdeo, Rishi
Publisher: name: Unknown
Year: 1995
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Recent competition in the agricultural sector due to trade liberalization dictates that there should be innovative approaches to marketing local produce. An alternative marketing strategy has been proposed to expand the marketing of locally produced lamb in Trinidad and Tobago. This paper discusses the existing marketing arrangements for the niche marketing of lamb. It examines the pre-conditions for entering the market. These preconditions include the assessment of consumer demand for the primary product, market studies, product handling and quality as well as consumer surveys of the market. The logistics involved in organising producers, processors and retailers in a 9-month pilot project to market local lamb is reviewed. The future of this cooperative marketing arrangement and the application of this model to other agricultural produce is also discussed.
On modelling adiabatic N - soliton interactions in external potentials
Creators: name: Gerdjikov, V. S.
name: Baizakov, B. B.
name: Salerno, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We analyze perturbed version of the complex Toda chain (CTC) in an attempt to describe the adiabatic N - soliton train interactions of the perturbed nonlinear Schrödinger equation (NLS). We study perturbations with weak quadratic and periodic external potentials by both analytical and numerical means. The perturbed CTC adequately models the N - soliton train dynamics for both types of potentials. As an application of the developed theory we consider the dynamics of a train of matter - wave solitons confined in a parabolic trap and optical lattice, as well as tilted periodic potential.
description: 14 pages, 7 figures; added subsection and references
Policy interfacing and irrigation development in Tamil Nadu
Creators: name: Kuppannan, Palanisami
name: Amarasinghe, Upali A.
name: Sakthivadivel, R.
name: Kuppannan, Palanisami
name: Amarasinghe, Upali A.
name: Sakthivadivel, R.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Food Security and Poverty
subject: Livestock Production/Industries
subject: Agroclimatology
subject: Groundwater irrigation
subject: Wells
subject: Tank irrigation
subject: Canals
subject: Irrigation systems
subject: Policy
subject: Irrigated land
subject: Water use efficiency

description: In International Water Management Institute (IWMI). Strategic Analyses of the National River Linking Project (NRLP) of India Series 5. Proceedings of the Second National Workshop on Strategic Issues in Indian Irrigation, New Delhi, India, 8-9 April 2009. Colombo, Sri Lanka: International Water Management Institute (IWMI).
The EMF: concluding remarks
Creators: name: TRIFFIN, R.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: European Monetary Fund, EMU, European integration
subject: F33, F36

description: The European Monetary Fund was the subject of the Second International Seminar on European Economic and Monetary Union, held in Geneva in December of 1979. In these concluding remarks, the author summarises some of the main points of discussion and offers some further considerations. JEL: F33, F36
description: PSL Quarterly Review, V. 33, N. 134 (1980)
In the eye of the flourish wheel: an assessment of users’ health, well-being and productivity in university research rooms
Creators: name: Al-Dmour, Youmna
name: AlQaralleh, Huthaifa
name: Garaj, Vanja
name: Clements-Croome, Derek
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Science Policy

description: Indoor Environmental Quality (IEQ) is an immense concern for people’s wellness. The central argument in this research is that the IEQ in a university research room impacts users and their health, well-being and productivity. In addition, the present study relies on the Flourish Wheel to enhance the environment using the Biophilic Design approach, which in turn influences users’ satisfaction and work performance in five research rooms at Brunel University London. These rooms are situated in the same outdoor environment of a single university campus, but house multi-disciplinary occupants and vary in construction age, size, methods of ventilation and mode of thermostatic control. The current research paper firstly investigated the role of IEQ factors and sub-factors on occupants’ health, well-being, and productivity. Secondly, evaluated the possibility of improving the indoor workplace environment using Biophilic Design patterns. The most prominent finding is that the qualities of the five critical aspects of IEQ have significantly positive correlations with the occupants’ wellness. Another significant result is that the 14 Biophilic Design framework patterns can holistically offer different ways to improve the research rooms based on various environmental issues. The findings proposed in this study could be valuable both for design practitioners and academic researchers.
Projective Expected Utility
Creators: name: La Mura, Pierfrancesco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: Theoretical Economics (econ.TH)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Motivated by several classic decision-theoretic paradoxes, and by analogies with the paradoxes which in physics motivated the development of quantum mechanics, we introduce a projective generalization of expected utility along the lines of the quantum-mechanical generalization of probability theory. The resulting decision theory accommodates the dominant paradoxes, while retaining significant simplicity and tractability. In particular, every finite game within this larger class of preferences still has an equilibrium.
description: 7 pages, to appear in the Proceedings of Quantum Interaction 2008
Enhanced oil production of the Varg Field, through revising the geological understanding area PL038, Central North Sea
Creators: name: J. E. BATTIÉ
name: E. I. H. SIGGERUD
name: O. G. TVEITEN
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: The Varg Field, license Pl 038, is situated approximately 240 kilometres offshore Stavanger. August 2002 the PL038 operatorship was taken over by Pertra AS (a PGS owned oil company) from Norsk Hydro ASA, thus becoming a new oil producing company on the Norwegian shelf. The reservoir succession comprises of Oxfordian shallow marine, highly bioturbated mudstones and muddy siltstones to sandstones reflecting a depositional range from offshore transition to upper shoreface conditions. The detailed understanding of the Varg Field comes from the numerous cores taken. The cores selected for this workshop are from three wells illustrating the importance of having a good coring program. A new image logging tool from Haliburton called the ALD tool has been shown to be extremely useful in situations where coring is difficult when such logs are correlated to cores in near by wells. Together the ALD log and cores create a formidable interpretation tool for understanding the reservoir. The second set of cores illustrates the importance of understanding the biogenetic sedimentary structures to achieve a more correct interpretation of the deposition environment, thus yielding a better predictability of the reservoir away from the wells. With this detailed predictability one can aid in improving seismic facies analysis and be able to perform quality control of calculated reservoir parameters. The third core set shows the importance of a good coring program to solve productions problems. Well 15/12-A-5 T2 began producing water from the middle of the oil zone. Without core the reason for this water production could never be explained and an elimination program could not be initiated. The core shows coarse gravel bed in the middle of the reservoir from which water break through occurred all the while oil was produced above and below.
Team Decision Problems with Classical and Quantum Signals
Creators: name: Brandenburger, Adam
name: La Mura, Pierfrancesco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Theoretical Economics (econ.TH)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: We study team decision problems where communication is not possible, but coordination among team members can be realized via signals in a shared environment. We consider a variety of decision problems that differ in what team members know about one another's actions and knowledge. For each type of decision problem, we investigate how different assumptions on the available signals affect team performance. Specifically, we consider the cases of perfectly correlated, i.i.d., and exchangeable classical signals, as well as the case of quantum signals. We find that, whereas in perfect-recall trees (Kuhn [1950], [1953]) no type of signal improves performance, in imperfect-recall trees quantum signals may bring an improvement. Isbell [1957] proved that in non-Kuhn trees, classical i.i.d. signals may improve performance. We show that further improvement may be possible by use of classical exchangeable or quantum signals. We include an example of the effect of quantum signals in the context of high-frequency trading.
description: 18 pages, 16 figures
Maximum rate of entropy emission
Creators: name: Mirza, Behrouz
name: Mirzaiyan, Zahra
name: Nadi, Hamideh
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown that adding hair like electric charge or angular momentum to the black hole decreases the amount of entropy emission. This motivates us to study the emission rate of entropy from black holes and conjecture a maximum limit (upper bound) on the rate of local entropy emission ($\dot{S}$) for thermal systems in four dimensional space time and argue that this upper bound is $\dot{S}\simeq k_{B} \sqrt{\frac{c^5}{\hbar G}}$. Also by considering Rènyi entropy, it is shown that Bekenstein-Hawking entropy leads to a maximum limit for the rate of entropy emission. We also suggest an upper bound on the surface gravity of the black holes which is called Planck surface gravity. Finally we obtain a relation between maximum rate of entropy emission, Planck surface gravity and Planck temperature of black holes.
description: 18 pages, 1 figure
¹⁵N discrimination as an indicator of nitrogen dynamics in Populus trichocarpa
Creators: name: Buschhaus, Hannah Ariel Elizabeth
Publisher: name: University of British Columbia
Year: 2011

description: The current understanding of nitrogen stable isotope ratios in plant tissues increasingly emphasizes the relationship between plant growth and nitrogen nutrition in determining plant δ15N. This demand relative to supply is thought to influence the plant's ability to discriminate against the heavier 15N. Discrimination (Dplant) is then linked to the ratio of efflux to influx. Factors which influence either of these thus affect Dplant- This thesis examines genotypic differences and physiological manipulations in Populus trichocarpa to further test the proposed efflux/influx model for Dplant. Substrate depletion experiments used ramets grown in hydroponic media containing 200µM NH4 + . Root pruning to reduce the plant's capacity to supply N correspondingly increased the rate of NH4 + uptake and decreased Dplant. Shoot pruning and genotypic variation did not appear to play a significant role in determining Dplant as assessed by this method. Substrate depletion experiments also allowed us to calculate the root NH4 + influx and efflux from the δ15N and the net uptake rate. This novel application of the efflux/influx model for discrimination generated efflux and influx values that corroborated existing radiolabelled 13N studies. The ability to accurately calculate efflux and influx using stable isotope methods at natural abundance levels provides a new, non-radioactive approach for further nutrient-uptake efficiency studies. In steady-state experiments, ramets were grown at either ambient (400ppm) or elevated (800ppm) atmospheric CO2 concentrations in either 200µM or 400µ.M NH4 + hydroponic media. Within the treatments, Dplant corresponded to the relative growth rate responses, signifying its dependence on physiological growth factors. Genotypic differences in the discrimination values of P. trichocarpa provenances could be manipulated by changing the supply/demand regimes. Plant tissue δ15N revealed an unexpected but distinct foliar enrichment. These data prompted the development of a revised efflux/influx model that accounts for translocation and subsequent assimilation of NH4 + in the leaves. This newest model now provides testable hypotheses for future NH4 + translocation and assimilation studies.
Dust in 3CR radio galaxies: On the FR1-FR2 difference
Creators: name: Mueller, S. A. H.
name: Haas, M.
name: Siebenmorgen, R.
name: Klaas, U.
name: Meisenheimer, K.
name: Chini, R.
name: Albrecht, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compare three 3CR samples of 11 FR1 galaxies, 17 FR2 galaxies and 18 lobe-dominated quasars contained in the ISO Data Archive. In contrast to the powerful FR2 galaxies with edge-brightened lobes, the low radio power FR1 galaxies in our sample do not exhibit any high MIR or FIR dust luminosity, which is typical for a buried, intrinsically more luminous AGN. This consolidates the fact already inferred from optical studies that their AGNs have only a relatively low luminosity. Also the FR1 galaxies show a high FIR/MIR luminosity ratio, compared to quasars, suggesting that their FIR luminosity is substantially powered by the interstellar radiation field (ISRF) of the giant elliptical hosts. Finally, we discuss the FR1-FR2 morphological dichotomy. FR1 galaxies do not have more interstellar matter (ISM) than FR2s as traced -- on the large scale -- by the cool FIR emitting dust and -- in the nuclear region -- by the warm MIR emitting dust. Due to the lack of central gas we suggest that the black holes of our FR1 galaxies are fed at a lower accretion rate than those of the FR2 galaxies.
description: 4 pages 3 figures Letter accepted by A&A