cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Properties of brightest group galaxies in cosmic web filaments
Creators: name: Kuutma, Teet
name: Poudel, Anup
name: Einasto, Maret
name: Heinämäki, Pekka
name: Lietzen, Heidi
name: Tamm, Antti
name: Tempel, Elmo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. The cosmic web, a complex network of galaxy groups and clusters connected by filaments, is a dynamical environment in which galaxies form and evolve. However, the impact of cosmic filaments on the properties of galaxies is difficult to study because of the much more influential local (galaxy-group scale) environment. Aims. The aim of this paper is to investigate the dependence of intrinsic galaxy properties on distance to the nearest cosmic web filament, using a sample of galaxies for which the local environment is easily assessable.} Methods. Our study is based on a volume-limited galaxy sample with $M_\mathrm{r}$ $\leq -19$ mag, drawn from the SDSS DR12. We chose brightest group galaxies (BGGs) in groups with two to six members as our probes of the impact of filamentary environment because their local environment can be determined more accurately. We use the Bisous marked point process method to detect cosmic-web filaments with radii of $0.5-1.0$ Mpc and measure the perpendicular filament spine distance ($D_{\mathrm{fil}}$) for the BGGs. We limit our study to $D_{\mathrm{fil}}$ values up to 4 Mpc. We use the luminosity density field as a tracer of the local environment. To achieve uniformity of the sample and to reduce potential biases we only consider filaments longer than 5 Mpc. Our final sample contains 1427 BGGs. Results. We note slight deviations between the galaxy populations inside and outside the filament radius in terms of stellar mass, colour, the 4000AA break, specific star formation rates, and morphologies. However, all these differences remain below 95% confidence and are negligible compared to the effects arising from local environment density. Conclusions. Within a 4 Mpc radius of the filament axes, the effect of filaments on BGGs is marginal. The local environment is the main factor in determining BGG properties.
description: 11 pages, 9 figures, Accepted for publication in A&A
THE IMPACT OF SUPERVISED CREDIT PROGRAMMES ON TECHNOLOGICAL CHANGE IN DEVELOPING AGRICULTURE
Creators: name: Scobie, Grant M.
name: Franklin, David L.
name: Scobie, Grant M.
name: Franklin, David L.
Publisher: name: Unknown
Year: 1977
Subjects: Agricultural Finance
Research and Development/Tech Change/Emerging Technologies

description: Restrictions on input use frequently accompany the granting of institutional credit to farmers in developing agriculture. A general economic framework is suggested to analyze the net social benefits of such a policy. The paper discusses the potential for manipulating the policy variables to foster more rapid adoption of new agricultural technology. An empirical analysis of the impact of a supervised credit programme in Guatemala on farm performance and farmer decision-making is presented.
Destruction of Superconductivity by Impurities in the Attractive Hubbard Model
Creators: name: Hurt, Daniel
name: Odabashian, Evan
name: Pickett, Warren
name: Scalettar, Richard
name: Mondaini, Felipe
name: Paiva, Thereza
name: Santos, Raimundo R. dos
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the effect of U=0 impurities on the superconducting and thermodynamic properties of the attractive Hubbard model on a square lattice. Removal of the interaction on a critical fraction of $f_{\rm crit} \approx 0.30$ of the sites results in the destruction of off-diagonal long range order in the ground state. This critical fraction is roughly independent of filling in the range $0.75 < ρ< 1.00$, although our data suggest that $f_{\rm crit}$ might be somewhat larger below half-filling than at $ρ=1$. We also find that the two peak structure in the specific heat is present at $f$ both below and above the value which destroys long range pairing order. It is expected that the high $T$ peak associated with local pair formation should be robust, but apparently local pairing fluctuations are sufficient to generate a low temperature peak.
BioExcel-2 Deliverable 4.1 - Dissemination and Outreach Plan
Creators: name: Mendonca, Michelle
name: Apostolov, Rossen
name: Muscat, Melissa
name: Harrow, Ian
Publisher: name: Zenodo
Year: 2019
Subjects: Project management

description: This deliverable describes the main objectives and direction of work for the center’s dissemination and outreach activities. It presents: brand redesign design and structure of the website selection of social media channels dissemination material such as brochures targeted events such as conferences and workshops communication with industry The document also includes a set of key performance indicators (KPIs) that will be monitored and presented in future reports.
Molecular insight into interfacial tension modulated by mixed cationic and anionic surfactants
Creators: name: Zhou, Lixia
name: Li, Shengchao
name: Wang, Kaixuan
name: Yan, Youguo
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: The oil/water interfacial tension plays a crucial role in tertiary oil recovery, and the low interfacial tension facilitates oil emulsification and stripping. Here, anionic surfactant sodium dodecyl sulfate and cationic surfactant hexadecyltrimethylammonium bromide were employed to study their ability to reduce the oil/water interfacial tension (IFT). Experimental results show that the mixed cationic and anionic surfactants could produce lower IFT than that of individual cationic or anionic surfactant, and the lowest IFT could be obtained at molar ratio of CTAB:SDS = 2:1. Employing molecular dynamics simulation method, the oil/water IFT was calculated and gave same changing trend with that of the experiment. The underlying mechanism of IFT modulated by mixed cationic and anionic surfactants was unveiled from the insight of interfacial structure, interfacial energy, interaction energy between different molecules and interface roughness, and so on. We found the hydration radius of counterion as well as the charge distribution of polar headgroup of surfactant together play crucial role determining the ion distribution inside water phase and surfactant/water interface, and further influencing the IFT. Our study provides an atomic-level understanding of the IFT modulated by cationic and anionic surfactants, and our results might have some references for enhanced oil recovery.
Mirror symmetry for quasi-smooth Calabi-Yau hypersurfaces in weighted projective spaces
Creators: name: Batyrev, Victor
name: Schaller, Karin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider a $d$-dimensional well-formed weighted projective space $\mathbb{P}(\overline{w})$ as a toric variety associated with a fan $Σ(\overline{w})$ in $N_{\overline{w}} \otimes \mathbb{N}$ whose $1$-dimensional cones are spanned by primitive vectors $v_0, v_1, \ldots, v_d \in N_{\overline{w}}$ generating a lattice $N_{\overline{w}}$ and satisfying the linear relation $\sum_i w_i v_i =0$. For any fixed dimension $d$, there exist only finitely many weight vectors $\overline{w} = (w_0, \ldots, w_d)$ such that $\mathbb{P}(\overline{w})$ contains a quasi-smooth Calabi-Yau hypersurface $X_w$ defined by a transverse weighted homogeneous polynomial $W$ of degree $w = \sum_{i=0}^d w_i$. Using a formula of Vafa for the orbifold Euler number $χ_{\rm orb}(X_w)$, we show that for any quasi-smooth Calabi-Yau hypersurface $X_w$ the number $(-1)^{d-1}χ_{\rm orb}(X_w)$ equals the stringy Euler number $χ_{\rm str}(X_{\overline{w}}^*)$ of Calabi-Yau compactifications $X_{\overline{w}}^*$ of affine toric hypersurfaces $Z_{\overline{w}}$ defined by non-degenerate Laurent polynomials $f_{\overline{w}} \in \mathbb{C}[N_{\overline{w}}]$ with Newton polytope $\text{conv}(\{v_0, \ldots, v_d\})$. In the moduli space of Laurent polynomials $f_{\overline{w}}$ there always exists a special point $f_{\overline{w}}^0$ defining a mirror $X_{\overline{w}}^*$ with a $\mathbb{Z}/w\mathbb{Z}$-symmetry group such that $X_{\overline{w}}^*$ is birational to a quotient of a Fermat hypersurface via a Shioda map.
description: 20 pages, 2 figures
SOCIAL COSTS OF REGULATION OF PRIMARY INDUSTRY: AN APPLICATION TO ANIMAL WELFARE REGULATION OF THE VICTORIAN PIG INDUSTRY
Creators: name: Wilcox, Christopher J.
name: Wilcox, Christopher J.
Publisher: name: Unknown
Year: 1989
Subjects: Livestock Production/Industries

description: The effects of state government regulation of primary industry are modelled. An analytical framework is presented for estimating the costs of regulation in terms of changes in economic surplus. The model permits trade between regions of the total market. An illustrative application of the framework is applied to proposed animal welfare regulation of the Victorian pig industry. Some regulations that may provide large gains with regard to the welfare of farm animals involve only small social costs compared to the gross value of production of the industry. Conversely, other regulations that potentially confer only small gains in animal welfare impose large social costs. The distribution of these costs is important. In general, consumers lose, as do some producers. Other producers gain. In some cases, producers in aggregate gain from regulation. Major beneficiaries, such as advocates of animal welfare regulations, are likely to bear little of the cost of regulation.
Balancing consumption and availability in a multiple uses of water system
Creators: name: Rivera, Isabel Cristina Dominguez
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 90508 Water Quality Engineering
subject: FOS: Civil engineering

description: Water service provision in Colombia rural area Along with the unequal distribution of land and income, access to water service is uneven in the rural area compared to the urban area. Since 1994, Colombia adopted a model of decentralization in the provision of public services, allowing private sector participation. However, ensuring service provision remains as State responsibility. The private sector operates especially in cities (Foster, V., 2005) while in the rural areas the service is provided by local communal organizations, since this market is usually not attractive for private providers. Consequently, rural services commonly present weak operational and financial indicators, and provide water of deficient quality. Hence, while in 2004 access to water was 93% in urban areas, in rural areas it was 71% (World Bank, 2004). This figure includes nonconventional options and does not take into account quality and continuity, thus, it is expected that the actual coverage is lower (Rojas, 2008).....
Soft X-ray emission lines of Fe XV in solar flare observations and the Chandra spectrum of Capella
Creators: name: Keenan, F. P.
name: Drake, J. J.
name: Chung, S.
name: Brickhouse, N. S.
name: Aggarwal, K. M.
name: Msezane, A. Z.
name: Ryans, R. S. I.
name: Bloomfield, D. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent calculations of atomic data for Fe XV have been used to generate theoretical line ratios involving n = 3-4 transitions in the soft X-ray spectral region (52-83 A), for a wide range of electron temperatures and densities applicable to solar and stellar coronal plasmas. A comparison of these with solar flare observations from a rocket-borne spectrograph (XSST) reveals generally good agreement between theory and experiment. In particular, the 82.76 A emission line in the XSST spectrum is identified, for the first time to our knowledge in an astrophysical source. Most of the Fe XV transitions which are blended have had the species responsible clearly identified, although there remain a few instances where this has not been possible. The line ratio calculations are also compared with a co-added spectrum of Capella obtained with the Chandra satellite, which is probably the highest signal-to-noise observation achieved for a stellar source in the 25-175 A soft X-ray region. Good agreement is found between theory and experiment, indicating that the Fe XV lines are reliably detected in Chandra spectra, and hence may be employed as diagnostics to determine the temperature and/or density of the emitting plasma. However the line blending in the Chandra data is such that individual emission lines are difficult to measure accurately, and fluxes may only be reliably determined via detailed profile fitting of the observations. The co-added Capella spectrum is made available to hopefully encourage further exploration of the soft X-ray region in astronomical sources.
description: 27 pages, 10 figures, Astrophysical Journal, in press
A hierarchical TP structure in Ancient Greek
Creators: name: Matticchio, Andrea
name: Sanfelici, Emanuela
Publisher: name: Journal of Historical Syntax
Year: 2021

description: A vast body of research has proposed that Ancient Greek exhibits a fairly free word order, unconstrained by purely syntactic principles, and only determined by stylistic and expressive factors. Successive investigations have explored the possibility that at least a portion of the Ancient Greek clause structure conforms to already attested linguistic tendencies, according to various theoretical frameworks. This paper contributes to the debate by investigating a rather understudied clausal domain, namely the mood-tense-aspect portion of the clause structure (the so-called tense phrase, TP), with the help of a novel diagnostic, i.e. adverb placement. We argue that a hierarchical structure can be envisaged for the Classical Greek TP. We examine the position of the finite verb and the distribution of subject and object DPs in relation to the order of a series of temporal-aspectual adverbs. By adopting Cinque's adverb hierarchy, we show that the relative order of adverbs obeys the hierarchical structure proposed there for functional categories. If a fixed position for adverbs is assumed, as in Pollock (1989) and Cinque (1999), they can be used as markers to determine the position of other constituents in the clause, such as verbs and DPs. We then demonstrate that verb placement as well as the subject/object DP position with respect to various adverbs can be well accounted for within the cartographic model.
description: Journal of Historical Syntax, Vol 5 No 41 (2021): A hierarchical TP structure in Ancient Greek
Plasmonic Tuning of the Near Field Heat Transfer in Double Layer Graphene
Creators: name: Ying, Xuzhe
name: Kamenev, Alex
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We discuss the non-radiative heat transfer in non-equilibrium double layer graphene system. We show that at the neutrality point the heat exchange is dominated by the inter-layer plasmon modes and derive analytic expressions for the heat current as a function of temperature and the interlayer separation. These results show that for a range of low temperatures the two graphene layers are much more efficient heat exchanger than conventional metals. The physical reason behind this phenomenon is the presence of inter-band excitations with a large energy, and a small momentum in graphene spectrum. Plasmonic mechanism of the heat transfer is sharply suppressed by electrostatic doping. This allows for tuning of the heat exchange by a small applied voltage between the two layers.
A MIXED INTEGER LINEAR PROGRAMMING EVALUATION OF SALINITY AND WATERLOGGING CONTROL OPTIONS IN THE MURRAY-DARLING BASIN OF AUSTRALIA
Creators: name: Alaouze, Chris M.
name: Fitzpatrick, Campbell R.
name: Alaouze, Chris M.
name: Fitzpatrick, Campbell R.
Publisher: name: Unknown
Year: 1989
Subjects: Environmental Economics and Policy
Land Economics/Use

description: Pollution of the River Murray by salt imposes costs on domestic and industrial users in Adelaide and to irrigators on the River Murray. Salt enters the Murray-Darling system through saline ground water aquifers and from irrigation and drainage of saline land. Irrigation and drainage generate benefits from improved agricultural productivity and impose costs through increased salt loads to the Murray-Darling system. The salinity of the River Murray can be reduced by pumping highly saline ground water into evaporation basins before it enters the River Murray. This paper presents a mixed integer linear programming model which is used to determine the mix of ground water interception schemes and land improvement schemes that minimises the net present value (over a time horizon of 30 years) of total Murray-Darling Basin costs due to salinity and waterlogging. By varying a target salinity level, the mix of works that yields various salinity targets in the River Murray at minimum cost is obtained. The sensitivity of the optimal solution to prescribed changes in costs and benefits of projects and to a longer planning horizon is examined.
A COMPARISON OF RISK EFFICIENCY CRITERIA IN EVALUATING GROUNDNUT PERFORMANCE IN DROUGHT-PRONE AREAS
Creators: name: Bailey, Elizabeth
name: Boisvert, Richard N.
name: Bailey, Elizabeth
name: Boisvert, Richard N.
Publisher: name: Unknown
Year: 1989
Subjects: Risk and Uncertainty

description: This paper contributes to an evaluation of the performance of ground nuts in drought-prone areas by estimating yield response functions to water from experimental data. They are combined with meteorological data to simulate yields by location. Efficient genotypes are identified by several risk criteria. Genotype rankings based on these risk criteria and simulated yields are different from those based on experimental data and plant scientists' traditional methods of evaluation.
MassINC: 2019 Transportation Revenues Massachusetts Survey
Creators: name: MassINC
name: Foundation, The Barr
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Registered to vote (1); favorability of Governor Charlie Baker (1); conditions of local transportation systems (2); priorities for state government (8); action needed to increase state transportation system (1); ideas for improving transportation in Massachusetts (6); support Commonwealth raising new money to invest in MA transportation system (1); raise gas tax to pay for transportation improvements (2); fee for companies that import gasoline into Massachusetts (1); fee at Registry of Motor Vehicles to direct money towards transportation improvements (1); support letting municipalities place funding measures for local or regional transportation (1); tolls on MA roadways (6); surcharge on parking spaces in commercial lots and garages (1); contributions from real estate development projects to pay for transportation infrastructure (1); surcharge on trips taken with ride-hailing apps (1); state gasoline tax (1); funding of transportation system (2); modes of travel (11); public transportation use in average week (1); morning commute (1).
The Human Soul
Creators: name: Hoffmann, Albert K
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 509999
subject: Other philosophy and religious studies not elsewhere classified

description: If man wants to understand his surroundings, he first has to understand himself. For how could man try to understand his surroundings if he does not understand himself? This article is focused on understanding ourselves by describing the soul of man and its relationship to the inner divine spirit in man. By doing so we provide answers to the three most fundamental questions of life: Where are we coming from, what are we doing here and where are we going to.
Transition-metal imidazolate polymers : a new family of molecule-based magnets
Creators: name: Sánchez, Víctor
Publisher: name: University of British Columbia
Year: 2009

description: One-, two- and three-dimensional transition-metal coordination polymers involving imidazolate-based ligands have been prepared and characterized structurally and magnetically. A 1-D material, [Fe(pz)2]x (pz = pyrazolate), which exhibits weak antiferromagnetic exchange (short-range), was found to possess a chain type structure in which metal ions are doubly bridged by pyrazolate ligands. In contrast, when imidazolate-type ligands were utilized in the synthesis of binary metal-azolate complexes, 3-D extended systems were produced as a consequence of the single-bridging of metal ions characteristic of imidazolate ligands. Hence, [Fe(4-abimid)2]x (4-abimid = 4-azabenzimidazolate), and its cobalt analogue, both of which have a novel 3-D single diamondoid structure, were prepared. Both of these materials exhibit long-range ferromagnetic ordering at low temperatures. [Co(imid)2]x, (imid = imidazolate); [Cu(2-meimid)2]x (2-meimid = 2-methylimidazolate); [Co(benzimid)2]x, [Ni(benzimid)2]x and [Cu(benzimid)2]x (benzimid = benzimidazolate); [Cu(4,5-dichloroimid)2]x (4,5-dichloroimid = 4i5-dichloroimidazolate); and [Co3(imid)6(imidH)2]x (imidH = imidazole), all exhibit magnetic behaviour that classifies them as molecule-based magnets. Indirect evidence suggests that these materials also have extended 3-D lattices. [Fe2(imid)4(bipy)]x (bipy = 2,2'-bipyridine), [Co2(imid)4(bipy)]x and [Fe4(imid)8(terpy)]x (terpy = 2,2':6',2"-terpyridine), have 2-D structures, a structural motif never before seen in polymetallic imidazolates. The 'pyridine' molecules act as chelating, capping, ligands which separate the extended sheets of imidazolate-bridged metal ions in these materials. [Fe2(imid)4(bipy)]x is unique in exhibiting two structural phase transitions. Both [Fe2(imid)4(bipy)]x and [Co2(imid)4(bipy)]x exhibit long-range ferromagnetic ordering at low temperatures while [Fe4(imid)8(terpy)]x shows more complex magnetization behaviour. All three of these materials can be considered molecule-based magnets. [Fe(l-Me-2-S-imid)20.5Cp2Fe]x (l-Me-2-S-imid = l-methyl-2-thioirnidazolate; Cp2Fe = ferrocene), was obtained as a rare example of a 1-D chain polymer that exhibits long-range magnetic ordering. Alternating FeN4 and FeS4 chromophores along the chains is a unique structural feature of this material. The single-bridging imidazolate ligands involved in most of the compounds studied here are efficient mediators of magnetic exchange interaction between metal centres. The observation of antiferromagnetic behaviour above a critical temperature, T[sub c] , and long-range ferromagnetic ordering below T[sub c] suggests canted spin structures for many of these compounds. Importantly, long-range tJhree-dimensional ordering of the residual spins, arising from the canting, leads to net magnetization at zero applied field. These magnetic properties classify these novel materials as molecule-based magnets.
The Difference Between the Amati and Ghirlanda Relations
Creators: name: Levinson, Amir
name: Eichler, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is pointed out that the beaming correction commonly inferred from the achromatic breaks in the afterglow light curve is biased in situations where the isotropic equivalent energy is affected by factors other than the spread in opening angles. In particular, it underestimates the beaming factor of sources observed off-axis. Here we show that both the slopes and scatters in the Amati and Ghirlanda relations, and the difference between them, are quantitatively consistent with a model proposed recently, in which the $E_{iso}-ν_{peak}$ relation, as originally derived by Amati et al., is due to viewing angle effects. The quantitative difference between them confirms the relations between opening angle and break time suggested by Frail et al.
description: accepted by ApJ Letters, post refereed version, an appendix has been added
Disorder-Protected Quantum State Transmission through Helical Coupled-Resonator Waveguides
Creators: name: Han, JungYun
name: Sukhorukov, Andrey A.
name: Leykam, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We predict the preservation of temporal indistinguishability of photons propagating through helical coupled-resonator optical waveguides (H-CROWs). H-CROWs exhibit a pseudospin-momentum locked dispersion, which we show suppresses onsite disorder-induced backscattering and group velocity fluctuations. We simulate numerically the propagation of two-photon wavepackets, demonstrating that they exhibit almost perfect Hong-Ou-Mandel dip visibility and then can preserve their quantum coherence even in the presence of moderate disorder, in contrast to regular CROWs which are highly sensitive to disorder. As indistinguishability is the most fundamental resource of quantum information processing, H-CROWs may find applications for the implementation of robust optical links and delay lines in the emerging quantum photonic communication and computational platforms.
description: 9 pages, 5 figures
Advance care planning in the Haitian community
Creators: name: Belizaire, Sarah
Publisher: name: No Publisher Supplied
Year: 2021

description: Purpose of Project: To Educate the Haitian Community on Advance Care Directives using the conversation of your life (COYL) tool kitMethodology: This project was supported by the evidence and by the knowledge to action model. The project had a sample of 12 participants (N=12) from the Haitian community which formed the setting for the project. The Advanced Care Plan Engagement Survey (ACPES) was used which measured readiness to engage in ACPResults: Scores as low as 4, indicating no engagement through 16, indicating readiness to engage in ACP were collected at baseline, 1 week after the educational workshop and at 2 weeks after baseline during a booster session. A statistically significant improvement in the mean ACPES score results was shown from baseline to week 1 and at the booster. The results of this project addressed the community’s needs around EOL and demonstrated how education could close the gaps of cultural bias.Implications for Practice: The project has implications for nursing practice as nurses have the ability to connect across the continuum of care and are viewed as the most trusted profession.
SOLUTION OF SPATIAL TRADING SYSTEMS WITH CONCAVE CUBIC PROGRAMMING
Creators: name: MacAulay, T. Gordon
name: Batterham, Robert L.
name: Fisher, Brian S.
name: MacAulay, T. Gordon
name: Batterham, Robert L.
name: Fisher, Brian S.
Publisher: name: Unknown
Year: 1989
Subjects: Research Methods/ Statistical Methods

description: Standard spatial equilibrium activity analysis models, as developed by Takayama and Judge (1971), are based on linear supply and demand functions and fixed input-output coefficients. Such models are suitable for multiple market level trading systems where the fixed input-output coefficients are appropriate. A primal-dual price form of these models is developed in which the assumption of constant per unit costs of transformation is relaxed. In the case when the average cost curves of transformation are quadratic in nature the problem becomes one that will be termed cubic programming (that is, a cubic objective function and linear and/or quadratic constraints) which is solved in a concave region of the solution space. In the paper, the formulation of a simplified spatial equilibrium model with quadratic average costs of transformation is presented and solved. A discussion of possible applications of such a model is also presented.
Fast Heating Dissociation of Upsilon(1S) in Heavy Ion Collisions at RHIC
Creators: name: Liu, Yunpeng
name: Chen, Baoyi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: With the adiabatic assumption in the cooling process, we discussed a new mechanism on Upsilon(1S) suppression that is due to the fast heating process at the early stage of the fireball instead of its finite decay width in finite temperature medium produced in the heavy ion collisions. We calculated the transition probability after the fast heating dissociation as a function of the temperature of the medium and the nuclear modification factor in central collisions, and found that the suppression is not negligible at RHIC, even if the width of Upsilon(1S) vanishes.
description: 5 pages, 4 figures
Fitting Photometry of Blended Microlensing Events
Creators: name: Thomas, Christian L.
name: Griest, Kim
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We reexamine the usefulness of fitting blended lightcurve models to microlensing photometric data. We find agreement with previous workers (e.g. Wozniak & Paczynski) that this is a difficult proposition because of the degeneracy of blend fraction with other fit parameters. We show that follow-up observations at specific point along the lightcurve (peak region and wings) of high magnification events are the most helpful in removing degeneracies. We also show that very small errors in the baseline magnitude can result in problems in measuring the blend fraction, and study the importance of non-Gaussian errors in the fit results. The biases and skewness in the distribution of the recovered blend fraction is discussed. We also find a new approximation formula relating the blend fraction and the unblended fit parameters to the underlying event duration needed to estimate microlensing optical depth.
description: 18 pages, 9 figures, submitted to ApJ
FORECASTING SAWNTIMBER CONSUMPTION: THE APPLICATION OF AN END-USE MODEL
Creators: name: Paul, Phillip B.
name: Sar, N.L.
name: Bui-Lan, Anh
name: Paul, Phillip B.
name: Sar, N.L.
name: Bui-Lan, Anh
Publisher: name: Unknown
Year: 1989
Subjects: Resource /Energy Economics and Policy

description: A multi-equation end-use model is used to analyse the consumption of sawn-timber in Australia. The forecasting ability of the model is evaluated. Simulations of the model are reported and implications for policy are discussed.
Excited Baryons in Large $N_c$ QCD
Creators: name: COhen, Thomas D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This talk reviews recent developments in the use of large $N_c$ QCD in the description of baryonic resonances. The emphasis is on the model-independent nature of the approach. Key issues discussed include the spin-flavor symmetry which emerges at large $N_c$ and the direct use of scattering observables. The connection to quark model approaches is stressed.
description: Talk at "Baryons 04", Palaiseau, October 2004
Effects of cell-cell adhesion on migration of multicellular clusters
Creators: name: Roy, Ushasi
name: Mugler, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Collections of cells exhibit coherent migration during morphogenesis, cancer metastasis, and wound healing. In many cases, bigger clusters split, smaller sub-clusters collide and reassemble, and gaps continually emerge. The connections between cell-level adhesion and cluster-level dynamics, as well as the resulting consequences for cluster properties such as migration velocity, remain poorly understood. Here we investigate collective migration of one- and two-dimensional cell clusters that collectively track chemical gradients using a mechanism based on contact inhibition of locomotion. We develop both a minimal description based on the lattice gas model of statistical physics, and a more realistic framework based on the cellular Potts model which captures cell shape changes and cluster rearrangement. In both cases, we find that cells have an optimal adhesion strength that maximizes cluster migration speed. The optimum negotiates a tradeoff between maintaining cell-cell contact and maintaining cluster fluidity, and we identify maximal variability in the cluster aspect ratio as a revealing signature. Our results suggest a collective benefit for intermediate cell-cell adhesion.
description: 10 pages, 6 figures
VALUE OF PREDICTORS OF UNCONTROLLED FACTORS IN RESPONSE FUNCTIONS
Creators: name: Byerlee, Derek R.
name: Anderson, Jock R.
name: Byerlee, Derek R.
name: Anderson, Jock R.
Publisher: name: Unknown
Year: 1969
Subjects: Research Methods/ Statistical Methods

description: A method is developed for assessing the monetary value of additional information in the framework of a response process which involves interaction between controlled and uncontrolled factors. The method is illustrated through an analysis of the value of a rainfall predictor in determining optimal applications of nitrogen to wheat in an environment with variable rainfall. The analysis defines the conditions under which the predictor is most valuable and suggests types of predictors which may be of greater value.
A non-causal FFTNet architecture for speech enhancement
Creators: name: Shifas, Muhammed PV
name: Adiga, Nagaraj
name: Tsiaras, Vassilis
name: Stylianou, Yannis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Computation and Language (cs.CL)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, we suggest a new parallel, non-causal and shallow waveform domain architecture for speech enhancement based on FFTNet, a neural network for generating high quality audio waveform. In contrast to other waveform based approaches like WaveNet, FFTNet uses an initial wide dilation pattern. Such an architecture better represents the long term correlated structure of speech in the time domain, where noise is usually highly non-correlated, and therefore it is suitable for waveform domain based speech enhancement. To further strengthen this feature of FFTNet, we suggest a non-causal FFTNet architecture, where the present sample in each layer is estimated from the past and future samples of the previous layer. By suggesting a shallow network and applying non-causality within certain limits, the suggested FFTNet for speech enhancement (SE-FFTNet) uses much fewer parameters compared to other neural network based approaches for speech enhancement like WaveNet and SEGAN. Specifically, the suggested network has considerably reduced model parameters: 32% fewer compared to WaveNet and 87% fewer compared to SEGAN. Finally, based on subjective and objective metrics, SE-FFTNet outperforms WaveNet in terms of enhanced signal quality, while it provides equally good performance as SEGAN. A Tensorflow implementation of the architecture is provided at 1 .
description: 5 pages
A STUDY OF BANANA SUPPLY AND PRICE PATTERNS ON THE SYDNEY WHOLESALE MARKET: AN APPLICATION OF SPECTRAL ANALYSIS
Creators: name: Aggrey-Mensah, W.
name: Tuckwell, N.E.
name: Aggrey-Mensah, W.
name: Tuckwell, N.E.
Publisher: name: Unknown
Year: 1969
Subjects: Demand and Price Analysis

description: Spectral analysis is applied to weekly supply and price series for bananas traded on the Sydney wholesale market. Many interesting features are revealed such as the pronounced seasonal component and the two week lag structure between the supply and price series. These results are discussed in relation to the known behaviour of the market and some implications for marketing decisions are tentatively drawn.
Disorder effects on the intrinsic nonlinear current density in YBa$_2$Cu$_3$O$_{7-δ}$
Creators: name: Andersen, Brian M.
name: Booth, James C.
name: Hirschfeld, P. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present harmonic generation measurements of the intrinsic nonlinear current density $j_2$ of YBa$_2$Cu$_3$O$_{7-δ}$ (YBCO) films at temperatures close the $T_c$. Experiments on a range of different quality samples allow us to extract the dependence of $j_2$ on the penetration depth of the superconductor. In order to model these results, we calculate the intrinsic nonlinear current response of $d_{x^2-y^2}$-wave superconductors in the Meissner regime in the presence of nonmagnetic impurities within the self-consistent T-matrix approximation.
description: 5 pages, 3 figures
The Non-event of Produce and NAFTA: Technical Annex
Creators: name: Beilock, Richard P.
name: Espinel, Ramon L.
name: Nalampang, Sikavas
name: Beilock, Richard P.
name: Espinel, Ramon L.
name: Nalampang, Sikavas
Publisher: name: Unknown
Year: 2002
Subjects: International Relations/Trade

description: This document is the technical annex to the full paper "The Non-event of Produce and NAFTA" which is available separately.
Ballistic Conductance and Magnetism in Short Tip-Suspended Ni Nanowires
Creators: name: Smogunov, A.
name: Corso, A. Dal
name: Tosatti, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic and transport properties of a short Ni nanowire suspended between two semi-infinite ferromagnetic Ni leads are explored in the framework of density-functional theory. The spin-dependent ballistic conductance of the nanowire is calculated using a scattering-based approach and the Landauer-Buttiker formula. The total calculated conductance in units of $G_0 = 2e^2/h$ is around 1.6, in fairly good agreement with the broad peak observed around 1.5 for the last conductance step in break junctions. Separating contributions from different spins, we find nearly 0.5 $G_0$ from the majority spin $s$-like channel, whereas the remaining minority spin conductance of 1.1 $G_0$ contains significant contributions from several $d$ states, but much less than 0.5 $G_0$ from $s$ states. The influence of the structural relaxation on the magnetic properties and the ballistic conductance of the nanowire is also studied.
description: 9 pages, 7 figures, to appear in PRB
U.S. Farm Policy and the WTO: How Do They Match Up?
Creators: name: Hart, Chad E.
name: Babcock, Bruce A.
name: Hart, Chad E.
name: Babcock, Bruce A.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: agricultural policy
subject: domestic support
subject: trade commitments
subject: WTO

description: The debate over a new farm bill has focused on how to spend an additional $73.5 billion in funding for the agricultural budget over ten years. The House of Representatives, the Senate Agriculture Committee, and Senators Cochran and Roberts (supported by the Bush Administration) have each proposed a structure for the next farm bill. A critical question becomes whether these proposals conflict with U.S. commitments to limit subsidies under the World Trade Organization (WTO) agreement. This paper explores this issue and concludes with a discussion of the future direction of U.S. farm subsidies and new WTO agreements.
Generalized Drude-Lorentz Model - Data
Creators: name: Ben Soltane, Isam
name: Dierick, Félice
name: Stout, Brian
name: Bonod, Nicolas
Publisher: name: Zenodo
Year: 2023

description: Generalized Drude-Lorentz model complying with the singularity expansion method.
Data and figures.
 
UPDATE - November 2023
The optimized parameters used for the SEM and the GDL model have been added for all the tested materials.
Unconventional superconductivity in a strongly correlated band-insulator without doping
Creators: name: Chattopadhyay, Anwesha
name: Krishnamurthy, H. R.
name: Garg, Arti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a novel route for attaining unconventional superconductivity (SC) in a strongly correlated system without doping. In a simple model of a correlated band insulator (BI) at half-filling we demonstrate, based on a generalization of the projected wavefunctions method, that SC emerges when e-e interactions and the bare band-gap are both much larger than the kinetic energy, provided the system has sufficient frustration against the magnetic order. As the interactions are tuned, SC appears sandwiched between the correlated BI followed by a paramagnetic metal on one side, and a ferrimagnetic metal, antiferromagnetic (AF) half-metal, and AF Mott insulator phases on the other side.
description: 10 pages, 11 figures
Generalized Drude-Lorentz Model - Data
Creators: name: Ben Soltane, Isam
name: Dierick, Félice
name: Stout, Brian
name: Bonod, Nicolas
Publisher: name: Zenodo
Year: 2023

description: Generalized Drude-Lorentz model complying with the singularity expansion method.
Data and figures.
 
UPDATE - November 2023
The optimized parameters used for the GDL model have been added for all the tested materials.
NAFTA and Beyond: Challenges for Extending Free Trade in the Hemisphere
Creators: name: Kerr, William A.
name: Kerr, William A.
Publisher: name: Unknown
Year: 2002
Subjects: subject: International Relations/Trade
subject: FTAA
subject: modalities
subject: NAFTA
subject: negotiations
subject: organisation

description: The NAFTA increasingly looks like a "one-shot" deal with little of the ongoing deepening of economic relationships expected at the time of its negotiation and no provisions for ongoing negotiations. As a result, alternative trading arrangements may provide an opportunity to move the North American trade agenda forward. The FTAA is one alternative. The FTAA, however, is an extremely ambitious undertaking bringing together a large number of very divergent economies in terms of size, stage of economic development, economic performance and economic philosophy. This increases the complexity of negotiations and the probability of failure. The paper outlines the major areas where negotiations are likely to be difficult and provides suggestions regarding what has been learned from the NAFTA experience that is relevant to the FTAA.
Flexoelectric fluid membrane vesicles in spherical confinement
Creators: name: Abtahi, Niloufar
name: Bouzar, Lila
name: Saidi-Amroun, Nadia
name: Müller, Martin Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The morphology of spherically confined flexoelectric fluid membrane vesicles in an external uniform electric field is studied numerically. Due to the deformations induced by the confinement, the membrane becomes polarized resulting in an interaction with the external field. The equilibrium shapes of the vesicle without electric field can be classified in a geometrical phase diagram as a function of scaled area and reduced volume [1,2]. When the area of the membrane is only slightly larger than the area of the confining sphere, a single axisymmetric invagination appears. A non-vanishing electric field induces an additional elongation of the confined vesicle which is either perpendicular or parallel depending on the sign of the electric field parameter. Higher values of the surface area or the electric field parameter can reduce the symmetry of the system leading to more complex folding. We present the resulting shapes and show that transition lines are shifted in the presence of an electric field. The obtained folding patterns could be of interest for biophysical and technological applications alike.
description: main text: 9 pages, 4 figures supplemental: 5 pages, 2 figures
X-ray States of Black Hole Binaries in Outburst
Creators: name: Remillard, R. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A brief review is given for X-ray properties of black hole binary systems. Topics include the effort to re-define the three states of active accretion, potential applications for general relativity in the regime of strong gravity, and the properties of high-frequency QPOs in 7 systems.
description: 10 pages, 4 figures, in "Interacting Binaries: Accretion, Evolution and Outcomes", eds. L. A. Antonelli, et al., Procs. Interacting Binaries Meeting, Cefalu, Italy, June 2004, in press (AIP)
Generalized Drude-Lorentz Model - Data
Creators: name: Ben Soltane, Isam
name: Dierick, Félice
name: Stout, Brian
name: Bonod, Nicolas
Publisher: name: Zenodo
Year: 2024

description: Generalized Drude-Lorentz model complying with the singularity expansion method.

Data and figures.

 

UPDATE - November 2023

The optimized parameters used for the GDL model have been added for all the tested materials.

 

 

UPDATE - January 2024

The figures have been modified
The Prophecies of the Naysayers - Assessing the Vision of the Protectionists in the U.S.-Canada Debate on Agricultural Reciprocity, 1846-1854
Creators: name: Kerr, William A.
name: Forgrave, Robert J.
name: Kerr, William A.
name: Forgrave, Robert J.
Publisher: name: Unknown
Year: 2003
Subjects: subject: International Relations/Trade
subject: agriculture
subject: protection
subject: reciprocity
subject: trade agreement

description: Debates over proposals to liberalise international trade are often heated and acrimonious. They are often argued, in part, on the basis of projections of market conditions after the proposed liberalisation. These argument are often important in influencing trade policy decisions, yet their accuracy is seldom assessed after liberalisation takes place. As a result, the projections may be more influential than they should be. This paper examines the projections of protectionists in the debate surrounding a proposed reciprocity agreement between the United States and British North America over the period 1846-1854 as a case study. The protectionist prophesies on both sides of the border were found not to be supported by the evidence from the subsequent period of reciprocity. A number of reasons for the inaccuracy of the projections are identified.
Educating housekeeping staff to encourage a culture supportive of breastfeeding
Creators: name: Blumenfeld, Julie
Publisher: name: No Publisher Supplied
Year: 2021

description: Purpose of Project: The purpose of this project was to explore the role of the Latina housekeeper in the breastfeeding experience of Latina women in the immediate postpartum period in an effort to increase exclusivity of breastfeeding in the hospital setting.Methodology: Participants were Spanish speaking Latina housekeeping staff working on a maternity unit at a community hospital. The sampling was purposive. The project was guided by the Knowledge to Action theoretical framework. The project included a pre- and post-attitude assessment, a pre- and post-educational assessment and an educational training for housekeeping staff based on the BFHI. Results: Before the intervention there were inconsistencies in thoughts and ideas regarding harms of formula feeding and benefits of breastmilk. Participants’ knowledge and positive attitudes toward breastfeeding increased after the educational intervention. Implications for Practice: Recognition of the influence of non-clinical staff on patient decision-making offers a unique opportunity to improve breastfeeding outcomes. There is value in pursuing further research regarding the role of educating non-clinical staff to mitigate the ubiquitous use of formula in the immediate postpartum period. Informing the Latina housekeeping staff about the importance of exclusive breastfeeding may have an effect on the culture within the hospital and overall breastfeeding outcomes for Latina women