cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Super computers in astrophysics and High Performance simulations of self-gravitating systems
Creators: name: Capuzzo-Dolcetta, R.
name: Di Matteo, P.
name: Miocchi, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The modern study of the dynamics of stellar systems requires the use of high-performance computers. Indeed, an accurate modelization of the structure and evolution of self-gravitating systems like planetary systems, open clusters, globular clusters and galaxies imply the evaluation of body-body interaction over the whole size of the structure, a task that is computationally very expensive, in particular when it is performed over long intervals of time. In this report we give a concise overview of the main problems of stellar systems simulations and present some exciting results we obtained about the interaction of globular clusters with the parent galaxy.
description: Invited talk at the SAIt 2003 national meeting (Trieste, Italy, 14 - 17 aprile 2003) to be published in the Proceedings; 6 pages+3 ps figures
State Observation of a 2D Parabolic PDE with a Time-Dependent Advection Parameter using the Modulating Function Method and the Method of Integral Operators
Creators: name: Friedrich, Folke
Publisher: name: Zenodo
Year: 2021
Subjects: Modulating Functions
Partial Differential Equations
Non-asymptotic Estimation
State Estimation
Method of Integral Operators
Parabolic PDE

description: A novel method for the Modulatung Function based state estimation of distributed systems is extended to two spatial dimensions. Furthermore, the consideration of a time-dependent advection term is discussed by introducing the Method of Integral Operators into the framework. This makes it possible to transform the resulting auxiliary problem which eventually results in a real-time capable observer setup for parabolic PDEs.
Collisionless kinetic theory for parametrically pumped magnons
Creators: name: Hahn, Viktor
name: Kopietz, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We discuss collisionless kinetic equations describing the non-equilibrium dynamics of magnons in a ferromagnet exposed to an oscillating microwave field. Previously, this problem has been treated within the so-called "S-theory" where the collision integral in the kinetic equation for the magnon distribution is either neglected or taken into account phenomenologically via an effective relaxation time. However, the possibility of magnon condensation has not been included in S-theory. Moreover, the momentum integrations appearing in the magnon self-energies are usually decoupled by retaining only the term where the loop momentum is equal to the external momentum. In this work we critically examine the accuracy of these approximations and develop the proper extensions of S-theory. We show that these extensions can significantly modify the time evolution of the magnon distribution.
The Warped Gas and Dust Lane in NGC 3718
Creators: name: Krips, M.
name: Pott, J. -U.
name: Eckart, A.
name: Leon, S.
name: Straubmeier, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first observations of molecular line emission in NGC 3718 with the IRAM 30m and the Plateau de Bure Interferometer. This galaxy is an impressive example for a strongly warped gas disk harboring an active galactic nucleus (AGN). An impressive dust lane is crossing the nucleus and a warp is developing into a polar ring. The molecular gas content is found to be typical of an elliptical galaxy with a relatively low molecular gas mass content (~4*10^8 Msun). The molecular gas distribution is found to warp from the inner disk together with the HI distribution. The CO data were also used to improve the kinematic modeling in the inner part of the galaxy, based on the so-called "tilted ring"-model. The nature of NGC 3718 is compared with its northern sky ``twin'' Centaurus A and the possible recent swallowing of a small-size gas-rich spiral is discussed.
description: 4 pages, 3 figures, contribution to the "Eurokiel 2002: Galaxy Evolution III: From Simple Models to Self Consistant Approaches" Conference Proceedings; Important note: the cited reference Hartwich et al. (in prep.) is accepted for publication by A&A as "J.-U. Pott et al." and is available soon on the preprint-archive
Urania : Astrology, Prophecy, and Pope Julius II's Papacy
Creators: name: Milatovic, Maya
name: Garrard, Mary D.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
title: Excitatory stimulation of the ventromedial prefrontal cortex reduces cognitive gambling biases via improved feedback learning
Creators: name: Kroker, Thomas
name: Wyczesany, Miroslaw
name: Rehbein, Maimu Alissa Rhea
name: Roesmann, Kati
name: Wessing, Ida
name: Wiegand, Anja
name: Bölte, Jens
name: Junghöfer, Markus
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2025
Subjects: subject: 150 Psychology

description: Humans are subject to a variety of cognitive biases, such as the framing-effect or the gambler's fallacy, that lead to decisions unfitting of a purely rational agent. Previous studies have shown that the ventromedial prefrontal cortex (vmPFC) plays a key role in making rational decisions and that stronger vmPFC activity is associated with attenuated cognitive biases. Accordingly, dysfunctions of the vmPFC are associated with impulsive decisions and pathological gambling. By applying a gambling paradigm in a between-subjects design with 33 healthy adults, we demonstrate that vmPFC excitation via transcranial direct current stimulation (tDCS) reduces the framing-effect and the gambler's fallacy compared to sham stimulation. Corresponding magnetoencephalographic data suggest improved inhibition of maladaptive options after excitatory vmPFC-tDCS. Our analyses suggest that the underlying mechanism might be improved reinforcement learning, as effects only emerge over time. These findings encourage further investigations of whether excitatory vmPFC-tDCS has clinical utility in treating pathological gambling or other behavioral addictions.
description: Finanziert über die DEAL-Vereinbarung mit Wiley, Springer oder Elsevier 2019–2023.
EXCHANGE RATE ADJUSTMENT AND THE U.S.-CANADIAN HOG AND PORK TRADE
Creators: name: Koening, Steven R.
name: Oehmke, James F.
name: Koening, Steven R.
name: Oehmke, James F.
Publisher: name: Unknown
Year: 1989
Subjects: subject: International Relations/Trade
subject: Livestock Production/Industries
subject: Exchange Rates
subject: Pork Trade
subject: U.S.-Canada
subject: Countervailing Duty

description: The determinants of U.S.-Canada pork trade from 1973 to 1985 are econometrically modeled. While the strong U.S. dollar had· negative and significant effects on net exports to Canada, these effects are overwhelmed by Canadian supply shifts. Implications for existing and po_tential countervailing duty policies are discussed.
The Becklin-Neugebauer Object as a Runaway B Star, Ejected 4000 years ago from the theta^1C system
Creators: name: Tan, Jonathan C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We attempt to explain the properties of the Becklin-Neugebauer (BN) object as a runaway B star, as originally proposed by Plambeck et al. (1995). This is one of the best-studied bright infrared sources, located in the Orion Nebula Cluster -- an important testing ground for massive star formation theories. From radio observations of BN's proper motion, we trace its trajectory back to Trapezium star theta^1C, the most massive (45 Msun) in the cluster and a relatively tight (17 AU) visual binary with a B star secondary. This origin would be the most recent known runaway B star ejection event, occurring only \~4000 yr ago and providing a unique test of models of ejection from multiple systems of massive stars. Although highly obscured, we can constrain BN's mass (~7 Msun) from both its bolometric luminosity and the recoil of theta^1C. Interaction of a runaway B star with dense ambient gas should produce a compact wind bow shock. We suggest that X-ray emission from this shocked gas may have been seen by Chandra: the offset from the radio position is ~300 AU in the direction of BN's motion. Given this model, we constrain the ambient density, wind mass-loss rate and wind velocity. BN made closest approach to the massive protostar, source ``I'', 500 yr ago. This may have triggered enhanced accretion and thus outflow, consistent with previous interpretations of the outflow being a recent (~10^3 yr) "explosive" event.
description: 6 pages, accepted to ApJ Letters
Interplay between the ionic and electronic density profiles in liquid metal surfaces
Creators: name: Gonzalez, L. E.
name: Gonzalez, D. J.
name: Stott, M. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: First principles molecular dynamics simulations have been performed for the liquid-vapor interfaces of liquid Li, Mg, Al and Si. We analize the oscillatory ionic and valence electronic density profiles obtained, their wavelengths and the mechanisms behind their relative phase-shift.
description: Accepted for publication in Journal of Chemical Physics
Study of the $ηπ$ and $η'π$ spectra and interpetation of possible exotic $J^{PC}=1^{-+}$ mesons
Creators: name: Szczepaniak, Adam P.
name: Swat, Maciej
name: Dzierba, Alex R.
name: Teige, Scott
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a coupled channel analysis of the $ηπ$ and $η'π$ systems produced in $π^-p$ interactions at 18 GeV/$c$. We show that known $Q\bar Q$ resonances, together with residual soft meson-meson rescattering, saturate the spectra including the exotic $J^{PC}=1^{-+}$ channel. A possibility of a narrow exotic resonance at a mass near 1.6 GeV/$c^2$ cannot, however, be ruled out.
description: 4 pages, 2 figures
Topological Landau-Ginzburg models on a world-sheet foam
Creators: name: Khovanov, M.
name: Rozansky, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We define topological Landau-Ginzburg models on a world-sheet foam, that is, on a collection of 2-dimensional surfaces whose boundaries are sewn together along the edges of a graph. We use matrix factorizations in order to formulate the boundary conditions at these edges and produce a formula for the correlators. Finally, we present the gluing formulas, which correspond to various ways in which the pieces of a world-sheet foam can be joined together.
description: 23 pages
Bathyarctus Holthuis 2002, n. gen.
Creators: name: Holthuis, Lipke B.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Scyllaridae
Bathyarctus

description: Genus Bathyarctus n. gen.
 TYPE SPECIES. — Arctus rubens Alcock & Anderson, 1894 by present designation.
 OTHER SPECIES. — The genus contains three other Indo-West Pacific species: Bathyarctus steatopygus n. sp., B. formosanus (Chan & Yu, 1992) n. comb. and B. chani n. sp.; furthermore there are two species from the western Atlantic region, B. faxoni (Bouvier, 1917) n. comb. and B. ramosae (Tavares, 1997) n. comb.
 ETYMOLOGY. — From the Greek bathys (meaning deep) and Arctus De Haan, 1849, a junior synonym of the generic name Scyllarus Fabricius, 1775. Three of the species of this genus, namely, are known only from great depths (320-)330-720(-810) m.
DIAGNOSIS. — Scyllaridae with the carapace in the midline provided with a pregastric, gastric and cardiac tooth; there is no sharp rostral tooth; the pregastric tooth is sometimes absent or reduced to a low and short transverse carina. Abdominal somites with prominent median carinae, that of the fourth somite slightly to distinctly higher than that of somite III; dorsal surface of abdomen without a clear and sharp arborescent arrangement of narrow grooves. Fourth segment of antenna with two oblique dorsal carinae. Thoracic sternum with the anterior margin straight and transverse or arched, not incised in the middle. In most species the dactylus and merus of all pereiopods and the propodus of legs 2-4 with ventral hairs; dorsal fringes may be found on the dactyli of P.1 to P.4 (often short and indistinct), on the propodi of P.1-P.4, on the carpi of P.1-P.5 and on the merus of P.1-P.5.
DISTRIBUTION. — Indo-West Pacific and Atlantic regions.
description: Published as part of Holthuis, Lipke B., 2002, The Indo-Pacific scyllarine lobsters (Crustacea, Decapoda, Scyllaridae), pp. 499-683 in Zoosystema 24 (3) on pages 504-505, DOI: 10.5281/zenodo.4689240
The Spanish Tradition and American Impressionism
Creators: name: Paprocki, Monica M.
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Diffusive energy transport in the S=1 Haldane chain compound AgVP2S6
Creators: name: Sologubenko, A. V.
name: Kazakov, S. M.
name: Ott, H. R.
name: Asano, T.
name: Ajiro, Y.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the results of measurements of the thermal conductivity $κ$ of the spin S=1 chain compound AgVP_2S_6 in the temperature range between 2 and 300 K and with the heat flow directed either along or perpendicular to the chain direction. The analysis of the anisotropy of the heat transport allowed for the identification of a small but non-negligible magnon contribution $κ_m$ along the chains, superimposed on the dominant phonon contribution $κ_ph$. At temperatures above about 100 K the energy diffusion constant D_E(T), calculated from the $κ_m(T)$ data, exhibits similar features as the spin diffusion constant D_S(T), previously measured by NMR. In this regime, the behaviour of both transport parameters is consistent with a diffusion process that is caused by interactions inherent to one-dimensional S=1 spin systems.
description: 6 pages, 4 figures
ANALYSIS OF GRAIN SHIPPER/RAILROAD CONTRACT DISCLOSURE: AN EXPERIMENTAL APPROACH
Creators: name: Ruppel, Fred J.
name: Fuller, Stephen
name: McKnight, Mary
name: Ruppel, Fred J.
name: Fuller, Stephen
name: McKnight, Mary
Publisher: name: Unknown
Year: 1989
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: experimental economics
subject: transportation
subject: grain transportation

description: The Staggers Rail Act (1980) permitted confidential railroad contracts. Later legislation required disclosure of certain contract terms to allay small shipper claims of injury. This study uses experimental economics to analyze the effects of information disclosure. An oligopolistic market structure vas designed to simulate the market for rail services in the south/central Great Plains. Contract information vas disclosed to market participants under three scenarios: no disclosure, partial disclosure, and full disclosure. The analysis revealed favorable impacts on efficiency but no discernable effect on negotiated prices. An unexpected outcome vas profit enhancement by some participants under the partial disclosure format
Bathyarctus Holthuis 2002, N. GEN.
Creators: name: Holthuis, Lipke B.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Scyllaridae
Bathyarctus

description: KEY TO THE INDO- WEST PACIFIC SPECIES OF BATHYARCTUS N. GEN.
Species dealt with in this paper are in bold.
1. Anterior margin of the sternum rounded. Upper surface of posterior half of abdominal somites I to IV with distinct tubercles on either side of the transverse groove. Median carina of fourth abdominal somite only slightly higher than that of somite III. Large species, cl. more than 20 mm................................................................ 2
— Anterior margin of the sternum truncate or slightly concave. Upper surface of posterior half of abdominal somites I to IV practically smooth either side of the transverse groove, or with flattened indistinct tubercles. Median carina of abdominal somite IV distinctly higher than that of somite III. Small species, cl. 20 mm or less........ 3   2. Propodus of legs 1 to 4 with a thick pad of ventral hairs.................. B. chani n. sp.    — Propodus of legs 1 to 4 without ventral hairs.................... B. formosanus n. comb.
 3. Pregastric tooth distinct. Tip of median carina of fourth abdominal somite rounded in dorsal view............................................................................ B. rubens n. comb.
 — Pregastric tooth absent or visible as a low and short transverse carina. Tip of median carina of fourth abdominal somite incised in the middle, ending in two points...................................................................................................... B. steatopygus n. sp.
description: Published as part of Holthuis, Lipke B., 2002, The Indo-Pacific scyllarine lobsters (Crustacea, Decapoda, Scyllaridae), pp. 499-683 in Zoosystema 24 (3) on page 505, DOI: 10.5281/zenodo.4689240
IMPACTS OF RECENT AND PROPOSED ENVIRONMENTAL REGUIATIONS ON NET CASH FARM INCOME OF TYPICAL CORN-SOYBEAN AND COTTON-SOYBEAN FARMS
Creators: name: Dinan, Terry
name: Salassi, Michael
name: Dinan, Terry
name: Salassi, Michael
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural Finance
Crop Production/Industries
Environmental Economics and Policy

description: This paper presents the projected impacts of recent and proposed environmental regulations on two types of crop farms under alternative regulatory scenarios and impact cases. Regulations analyzed include the restriction or prohibition of the use of certain pesticides as well as other proposed environmental programs which also impact agriculture.
Search for Single Top Quark Production in ep Collisions at HERA
Creators: name: H1 Collaboration
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for single top quark production is performed in e^\pm p collisions at HERA. The search exploits data corresponding to an integrated luminosity of 118.3 pb^-1. A model for the anomalous production of top quarks in a flavour changing neutral current process involving a t-u-gamma coupling is investigated. Decays of top quarks into a b quark and a W boson are considered in the leptonic and the hadronic decay channels of the W. Both a cut-based analysis and a multivariate likelihood analysis are performed to discriminate anomalous top quark production from Standard Model background processes. In the leptonic channel, 5 events are found while 1.31 \pm 0.22 events are expected from the Standard Model background. In the hadronic channel, no excess above the expectation for Standard Model processes is found. These observations lead to a cross section σ(ep -> e t X) = 0.29 +0.15 -0.14 pb at \sqrt{s} = 319 GeV. Alternatively, assuming that the observed events are due to a statistical fluctuation, upper limits of 0.55 pb on the anomalous top production cross section and of 0.27 on the t-u-gamma coupling κ_{t-u-gamma} are established at the 95% confidence level.
description: 28 pages, 8 figurs and 4 tables
Design and performance of LED calibration system prototype for the lead tungstate crystal calorimeter
Creators: name: Batarin, V. A.
name: Butler, J.
name: Davidenko, A. M.
name: Derevschikov, A. A.
name: Goncharenko, Y. M.
name: Grishin, V. N.
name: Kachanov, V. A.
name: Khodyrev, V. Y.
name: Konstantinov, A. S.
name: Kormilitsin, V. A.
name: Kravtsov, V. I.
name: Kubota, Y.
name: Lukanin, V. S.
name: Matulenko, Y. A.
name: Melnick, Y. M.
name: Meschanin, A. P.
name: Mikhalin, N. E.
name: Minaev, N. G.
name: Mochalov, V. V.
name: Morozov, D. A.
name: Nogach, L. V.
name: Ryazantsev, A. V.
name: Semenov, P. A.
name: Semenov, V. K.
name: Shestermanov, K. E.
name: Soloviev, L. F.
name: Stone, S.
name: Uzunian, A. V.
name: Vasiliev, A. N.
name: Yakutin, A. E.
name: Yarba, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A highly stable monitoring system based on blue and red light emitting diodes coupled to a distribution network comprised of optical fibers has been developed for an electromagnetic calorimeter that uses lead tungstate crystals readout with photomultiplier tubes. We report of the system prototype design and on the results of laboratory tests. Stability better than 0.1% (r.m.s.) has been achieved during one week of prototype operation.
description: 10 pages, 6 figures, LaTeX2e
Thermal Self-Energies Using Light-Front Quantization
Creators: name: Weldon, H. Arthur
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A recent paper by Alves, Das, and Perez contains a calculation of the one-loop self-energy in ϕ^{3} field theory at T\neq 0 using light-front quantization and concludes that the self-energy is different than the conventional answer and is not rotationally invariant. The changes of variables displayed below show that despite the complicated appearance of the thermal self-energy in light-front variables, it is exactly the same as the conventional result.
description: 2 pages
Steps towards full two-loop calculations for 2 fermion to 2 fermion processes: running versus pole masses schemes
Creators: name: Jegerlehner, F.
name: Kalmykov, M. Yu.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent progress in the calculation of the two-loop on-shell mass counterterms within the electroweak Standard Model (SM) for the massive particles are discussed. We are in progress of developing a package for full two-loop SM calculations of 2 -> 2 fermion processes, with emphasis on the analytical approach where feasible. The complete two-loop on-shell renormalization is implemented. Substantial progress has been made in calculating the master integrals. We are able to compute in an efficient and stable manner up to a few thousands of diagrams of very complex mass structure.
description: 4 pages, 1 style file. To appear in the proceedings of 9th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 03), Tsukuba, Japan, 1-5 Dec 2003
Palladio Reconsidered : Classicism in the Architecture of Frank Gehry
Creators: name: Peck, Elizabeth
name: Turak, Theodore
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Critical behaviour of thin films with quenched impurities
Creators: name: Craco, L.
name: De Cesare, L.
name: Rabuffo, I.
name: Takov, I. P.
name: Uzunov, D. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The critical behaviour of thin films containing quenched random impurities and inhomogeneities is investigated by the renormalization-group method. The finite-size crossover in impure films has been considered on the basis of the fundamental relationship between the effective spatial dimensionality and the characteristic lengths of the system. The difference between the critical properties of infinite systems and films is demonstrated and investigated. A new critical exponent, describing the scaling properties of the thickness of films with extended impurities has been deduced and calculated. A special attention is paid to the critical behaviour of real impure films.
description: 27 pages LaTex; figures are available in the journal variant
An investigation into new SUB rooftop garden irrigations systems
Creators: name: Juneja, Harsh
name: Or, Randy
name: Tello, Boris
name: Thind, Manraj Singh
Publisher: name: The University of British Columbia
Year: 2012

description: Garden irrigation is a critic component for the new SUB rooftop garden. Contrary to popular belief, it’s entirely untrue that plants in Vancouver do not have to be watered despite heavy rainfall over the course of a year in British Columbia. Using the triple bottom line analysis, a new recommendation for an irrigation system is made. Sprinklers, drip irrigation and sub irrigation are the three systems that are discussed in this sustainability report. Sprinkler irrigation systems consist of a system of pipes that are used to bring water to the ground. It makes for one of the most natural methods of irrigation, almost identical to conventional home sprinklers, where water falls right on top of the plants like raindrops. There are many different factors that affect the usage of the sprinkler irrigation system, such as Suitable Slopes, Suitable crops, Suitable Soils, Suitable irrigation water. Drip irrigation done through a system of valves, tubing, pipes, and emitters. This method uses less water as opposed to sprinklers because of its low pressure output and its ability to reduce water contact with leaves. This system allows for increased yield and quality. Drip systems are especially good for onions, cauliflower, broccoli, lettuce, melons, and tomatoes. Only negatives about this system are the fact that the material it is made up of is not recyclable. Also, it is extremely tedious to maintain when there are problems with clogging, and punctures in the tubing. Sub irrigation is the last of the three systems that will be talked about. There are very similar in terms of drip irrigation, with its high maintenance costs. They are very environmental friendly for its ability to reuse recycled water. This allows for high uniformity. All three systems are all possible options for the new SUB roof. When it comes to sustainability, having the building be as green as possible is of the utmost importance. Maintenance costs, life spans, and water waste are all factors that account into sustainability. The amount of water saved within the 100 year life span of the new SUB building is crucial because these savings will outweigh the costs. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Petrarctus Holthuis 2002, n. gen.
Creators: name: Holthuis, Lipke B.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Scyllaridae
Petrarctus

description: Genus Petrarctus n. gen.
 TYPE SPECIES. — Scyllarus rugosus H. Milne Edwards, 1837 by present designation.
 OTHER SPECIES. — Petrarctus brevicornis (Holthuis, 1946) n. comb.; P. demani (Holthuis, 1946) n. comb.; P. veliger n. sp.
 ETYMOLOGY. — From the Greek word petra, rock and the generic name Arctus De Haan, 1849 in reference to the very solid, knobby, stone-like body of the species of this genus.
DIAGNOSIS. — Body very solid. Carapace with gastric and cardiac teeth.Rostrum without tooth but with a small dorsal tubercle; pregastric tooth absent or replaced by a weak transverse carina or a transverse row of tubercles.Abdomen with longitudinal median carina on somites II to V. Dorsal surface of somites II to V with a wide transverse median groove before and behind which there are tubercles or ridges, but there is no arborescent pattern of very narrow grooves. Fourth antennal segment with a single oblique dorsal carina, sometimes with an additional row of tubercles. Thoracic sternum anteriorly U-shaped with a narrow median incision, the latter sometimes very indistinct. No teeth or spines on the posterior margin of the sternum.
description: Published as part of Holthuis, Lipke B., 2002, The Indo-Pacific scyllarine lobsters (Crustacea, Decapoda, Scyllaridae), pp. 499-683 in Zoosystema 24 (3) on page 528, DOI: 10.5281/zenodo.4689240
Johns' Johns : Homosexual Imagery in the Early Work of Jasper Johns
Creators: name: Delehanty, Robert A.
name: Higdon, Elizabeth
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Supplementary Appendix 1.doc
Creators: name: Carriedo, Angela
Publisher: name: figshare
Year: 2020
Subjects: subject: 111102 Dietetics and Nutrigenomics
subject: FOS: Health sciences

description: This is a supplementary material for the publication: Nieto, C. Alcalde, R., Mena, C., Carriedo A., Barquera S., Perceptions of the use and understanding of nutrition labels among different socioeconomic groups in Mexico: a qualitative study. Salud Pública de Mexico, 2020; 62, 1-10 https://doi.org/10.21149/10793
Determination of the relative contribution of the non-dissolved fraction of ZnO NP on membrane permeability and cytotoxicity
Creators: name: Ziglari, Tahereh
name: Anderson, Donald S.
name: Holian, Andrij
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Plasma Physics
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Background: While the role of lysosomal membrane permeabilization (LMP) in NP-induced inflammatory responses has been recognized, the underlying mechanism of LMP is still unclear. The assumption has been that zinc oxide (ZnO)-induced LMP is due to Zn2+; however, little is known about the role of ZnO nanoparticles (NP) in toxicity. Methods: We examined the contribution of intact ZnO NP on membrane permeability using red blood cells (RBC) and undifferentiated THP-1 cells as models of particle-membrane interactions to simulate ZnO NP-lysosomal membrane interaction. The integrity of plasma membranes was evaluated by transmission electron microscopy (TEM) and confocal microscopy. ZnO NP dissolution was determined using ZnAF-2F, Zn2+ specific probe. The stability of ZnO NP inside the phagolysosomes of phagocytic cells, differentiated THP-1, alveolar macrophages, and bone marrow-derived macrophages, was determined. Results: ZnO NP caused significant hemolysis and cytotoxicity under conditions of negligible dissolution. Fully ionized Zn2SO4 caused slight hemolysis, while partially ionized ZnO induced significant hemolysis. Confocal microscopy and TEM images did not reveal membrane disruption in RBC and THP-1 cells, respectively. ZnO NP remained intact inside the phagolysosomes after a 4 h incubation with phagocytic cells. Conclusions: These studies demonstrate the ability of intact ZnO NP to induce membrane permeability and cytotoxicity without the contribution of dissolved Zn2+, suggesting that ZnO NP toxicity does not necessarily depend upon Zn2+. The stability of ZnO NP inside the phagolysosomes suggests that LMP is the result of the toxic effect of intact ZnO NP on phagolysosomal membranes.
The Potential for Geographic Information Systems in Agricultural Economics
Creators: name: Reinsel, Edward I.
name: Reinsel, Edward I.
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural and Food Policy
Research and Development/Tech Change/Emerging Technologies

description: The Potential for Geographic Information Systems in Agricultural Economics. Edward Reinsel, Organizer (Economic Research Service, USDA); Gene Wunderlich, Moderator (Economic Research Service, USDA); David Moyer (National Geodetic Survey); Robert Marx (Bureau of the Census, USDC); and Jane Luzar (Louisiana State University) Geographic Information Systems (GIS) are a means of acquiring, storing, retrieving, and analyzing natural resource, socio-economic, and other data. Although such systems offer great flexibility in handling complex geographically oriented information, they have been used relatively little by our profession. This symposium explored concepts underlying GIS's and identified several systems of significant potential interest to agricultural economists. The objective was to provide an understanding of GIS's and thus allow informed decisions by members of the profession concerning adoption of this technology. Moyer introduced general concepts of GIS, noted use by various government agencies and discussed forms of output, including maps, tables, and graphs. Marx described and offered suggestions on accessing and using TIGER--the Census Bureau's new geographic support system. Luzar considered the practical issue of adoption and application of GIS's to analysis of rural problems, including electronic transfer of large data bases, potential products, and hardware and software needs.
IRAS 23385+6053: a candidate protostellar massive object
Creators: name: Fontani, F.
name: Cesaroni, R.
name: Testi, L.
name: Walmsley, C. M.
name: Molinari, S.
name: Neri, R.
name: Shepherd, D.
name: Brand, J.
name: Palla, F.
name: Zhang, Q.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a multi-line and continuum study towards the source IRAS 23385+6053,performed with the IRAM-30m telescope, the Plateau de Bure Interferometer, the Very Large Array Interferometer and the James Clerk Maxwell Telescope. The new results confirm our earlier findings, namely that IRAS 23385+6053 is a good candidate high-mass protostellar object, precursor of an ultracompact H$_{II}$ region. The source is roughly composed of two regions: a molecular core $\sim0.03\div0.04$ pc in size, with a temperature of $\sim40$ K and an H$_{2}$ volume density of the order of 10$^{7}$ cm$^{-3}$, and an extended halo of diameter $\leq$0.4 pc, with an average kinetic temperature of $\sim 15$ K and H$_{2}$ volume density of the order of 10$^{5}$ cm$^{-3}$. The core temperature is much smaller than what is typically found in molecular cores of the same diameter surrounding massive ZAMS stars. We deduce that the core luminosity is between 150 and $1.6\times10^{4}L_{\odot}$, and we believe that the upper limit is near the ``true'' source luminosity. Moreover, by comparing the H$_{2}$ volume density obtained at different radii from the IRAS source, we find that the halo has a density profile of the type $n_{\rm H_{2}}\propto r^{-2.3}$. This suggests that the source is gravitationally unstable. Finally, we demonstrate that the temperature at the core surface is consistent with a core luminosity of $10^3 L_{\odot}$ and conclude that we might be observing a protostar still accreting material from its parental cloud, whose mass at present is $\sim 6 M_{\odot}$.
description: 18 pages, 20 figures
The Effects of Commodity and Market Characteristics on Futures Basis Variability
Creators: name: Monson, S. J.
name: Monson, S. J.
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural and Food Policy
Risk and Uncertainty

description: A cross commodity approach including storable and nonstorables was used to analyze the basis at constant periods from contract maturity. Various commodity and market characteristics that increase arbitrage potential were found to be significant in decreasing variability in the basis residual, thereby reducing basis risk.
Diffraction and trapping in circular lattices
Creators: name: Haroutyunyan, H. L.
name: Nienhuis, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: When a single two-level atom interacts with a pair of Laguerre-Gaussian beams with opposite helicity, this leads to an efficient exchange of angular momentum between the light field and the atom. When the radial motion is trapped by an additional potential, the wave function of a single localized atom can be split into components that rotate in opposite direction. This suggests a novel scheme for atom interferometry without mirror pulses. Also atoms in this configuration can be bound into a circular lattice.
Theory of a resonantly interacting impurity in a Bose-Einstein condensate
Creators: name: Drescher, Moritz
name: Salmhofer, Manfred
name: Enss, Tilman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a Bose-Einstein condensate in strong interaction with a single impurity particle. While this situation has received considerable interest in recent years, the regime of strong coupling remained inaccessible to most approaches due to an instability in Bogoliubov theory arising near the resonance. We present a nonlocal extension of Gross-Pitaevskii theory that is free of such divergences and does not require the use of the Born approximation in any of the interaction potentials. We find a new dynamical transition regime between attractive and repulsive polarons, where an interaction quench results in a finite number of coherent oscillations in the density profiles of the medium and in the contact parameter before equilibrium is reached.
description: 6 pages, 3 figures; published version
Resonant origin for density fluctuations deep within the Sun: helioseismology and magneto-gravity waves
Creators: name: Burgess, C. P.
name: Dzhalilov, N. S.
name: Rashba, T. I.
name: Semikoz, V. B.
name: Valle, J. W. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze helioseismic waves near the solar equator in the presence of magnetic fields deep within the solar radiative zone. We find that reasonable magnetic fields can significantly alter the shapes of the wave profiles for helioseismic g-modes. They can do so because the existence of density gradients allows g-modes to resonantly excite Alfven waves, causing mode energy to be funnelled along magnetic field lines, away from the solar equatorial plane. The resulting wave forms show comparatively sharp spikes in the density profile at radii where these resonances take place. We estimate how big these waves might be in the Sun, and perform a first search for observable consequences. We find the density excursions at the resonances to be too narrow to be ruled out by present-day analyses of p-wave helioseismic spectra, even if their amplitudes were to be larger than a few percent. (In contrast it has been shown in (Burgess et al. 2002) that such density excursions could affect solar neutrino fluxes in an important way.) Because solar p-waves are not strongly influenced by radiative-zone magnetic fields, standard analyses of helioseismic data should not be significantly altered. The influence of the magnetic field on the g-mode frequency spectrum could be used to probe sufficiently large radiative-zone magnetic fields should solar g-modes ever be definitively observed. Our results would have stronger implications if overstable solar g-modes should prove to have very large amplitudes, as has sometimes been argued.
description: 18 pages, 6 figures; misprints corrected
The Washington City Canal The Story of Greed, Corruption and Self Interest
Creators: name: Delehanty, Robert A.
name: Turak, Theodore
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Impact of Consumer Installment Debt on Food Expenditures
Creators: name: Kirby, Raymond
name: Capps, Oral
name: Kirby, Raymond
name: Capps, Oral
Publisher: name: Unknown
Year: 1991
Subjects: Consumer/Household Economics
Financial Economics
Food Consumption/Nutrition/Food Safety

description: Trends in consumer installment credit over the period 1970 to 1989 are discussed and an empirical model developed to identify and assess the impact of installment credit on food expenditures. Real per capita food expenditures are modeled as a function of the real price of food, real per capita personal disposable income, seasonality, and a measure of the level of consumer installment credit entered as a polynomial distributed lag to determine its effect over time. Results indicate that installment credit has a positive effect on food expenditures in the short-run, a negative effect in the long-run, and little effect overall. Results from separate models of the 1970s and 1980s provide evidence of structural change taking place between the two time periods.
The headspace-GC/MS: Alternative methodology employed in the bioreduction of (4S)-(+)-carvone mediated by human skin fungus
Creators: name: Santos, Rogério Aparecido Minini Dos
name: Reis, Adriano Valim
name: Pilau, Eduardo Jorge
name: Porto, Carla
name: Gonçalves, José Eduardo
name: Arildo José Braz De Oliveira
name: Gonçalves, Regina Aparecida Correia
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Neuroscience
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: The development of more efficient and environmentally friendly analytical methods represents a current focus for the fine chemical industry. In particular, microscale methodologies that are free of solvents/reagents. The headspace-GC/MS (HS-GC) methodology was employed in this study as a tool for monitoring a biocatalysed reaction of (4S)-(+)-carvone using Phoma sp., a filamentous fungus from human skin. Biocatalysis provides some advantages, such as high efficiency, high degrees of regioselectivity, chemoselectivity, and enantioselectivity. In order to optimize the small scale biocatalytic reaction of the (4S)-(+)-carvone by the filamentous fungus Phoma sp. was used headspace GC/MS methodology, factorial design of experiments and the response surface methodology (RSM) was performed using the biomass of the fungus, substrate mass and pH as parameters. It was observed that for all reactions conditions tested, forming the products (1 R,4S)-dihydrocarvone and (1S,4S)-dihydrocarvone. The most influential factor was pH, with the highest conversion rate (>95%) and diastereomeric excess (d.e.) (>80%) obtained at pH 5.0. Thus, it was demonstrated that human skin Phoma sp. fungus showed significant bioreduction activity and that headspace GC/MS is an efficient approach for real-time monitoring the biocatalysed reactions.
Vector Manifestation and the Hidden Local Symmetry
Creators: name: Harada, Masayasu
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this write-up, I summarize the key ingredients of the vector manifestaion formulated in the hidden local symmetry theory, in which the $ρ$ meson becomes massless degenerated with the pion at the chiral phase transition point.
description: Contribution to the proceedings of ``International Conference on QCD and Hadronic Physics'' (June 16-20, 2005, Beijing, China)
Galearctus Holthuis 2002, n. gen.
Creators: name: Holthuis, Lipke B.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Scyllaridae
Galearctus

description: Genus Galearctus n. gen.
 TYPE SPECIES. — Scyllarus timidus Holthuis, 1960 by present designation.
 OTHER SPECIES. — Galearctus aurora (Holthuis, 1982) n. comb.; G. kitanoviriosus (Harada, 1962) n. comb.; G. rapanus (Holthuis, 1993) n. comb.; G. umbilicatus (Holthuis, 1977) n. comb.
 ETYMOLOGY. — From galea (Latin), helmet, and Arctus De Haan, 1849, a junior synonym of Scyllarus Fabricius, 1775; in reference to the helmet-like protrusion of the middle of the anterior margin of the thoracic sternum.
DIAGNOSIS. — Midline of carapace with rostral, gastric and cardiac teeth; pregastric tooth absent. Abdomen without sharp median carinae, with distinct arborescent markings and a median lobulated figure. Pleura of somites II to IV often ending in a sharp, posteriorly directed tooth. Fourth antennal segment with a single dorsal carina, without additional carinae. The anterior margin of the thoracic sternum forwards produced beyond the anterolateral angles, the tip with a small median triangular incision, that ends in a groove. P.3 with the propodus widened, broader than the merus or the propodus of P.2. Dactyli smooth without hairy fringes.
description: Published as part of Holthuis, Lipke B., 2002, The Indo-Pacific scyllarine lobsters (Crustacea, Decapoda, Scyllaridae), pp. 499-683 in Zoosystema 24 (3) on page 558, DOI: 10.5281/zenodo.4689240
Supplementary Data for "An index of the fractal characteristic of an airway tree is associated with airflow limitations and future body mass index reduction in COPD patients"
Creators: name: Kinose, Daisuke
Publisher: name: figshare
Year: 2020
Subjects: subject: 110203 Respiratory Diseases
subject: FOS: Clinical medicine

description: Supplementary Data for "An index of the fractal characteristic of an airway tree is associated with airflow limitations and future body mass index reduction in COPD patients" accepted by Journal of Applied Physiology
HYSTERESIS AND ASSET FIXITY UNDER UNCERTAINTY
Creators: name: Hsu, Shih-Hsun
name: Chang, Ching-Cheng
name: Hsu, Shih-Hsun
name: Chang, Ching-Cheng
Publisher: name: Unknown
Year: 1991
Subjects: subject: Agricultural and Food Policy
subject: Risk and Uncertainty
subject: asset fixity
subject: sunk cost
subject: uncertainty
subject: acquisition costs
subject: salvage values
subject: hysteresis
subject: stochastic optimal control

description: The fixed asset theory, when viewed as an investment/disinvestment theory, implies a simple two-parameter control-limit decision rule. The theory is extended to incorporate the stochastic nature of farm revenue. The results show that ongoing uncertainty leads to a widening of the range of inaction because there is a positive value of waiting. The effects of sunk costs, or the divergence of acquisition costs from salvage values, on the degree of investment/ disinvestment irreversibility become more pronounced when uncertainty is present.