cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Maximum Sustainable Government Debt in the Overlapping Generations Model
Creators: name: Rankin, Neil
name: Roffia, Barbara
name: Rankin, Neil
name: Roffia, Barbara
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: Financial Economics
subject: maximum sustainable government debt
subject: overlapping generations
subject: catastrophes

description: The theoretical determinants of maximum sustainable government debt are investigated using Diamond’s overlapping-generations model. A level of debt is defined to be ‘sustainable’ if a steady state with non-degenerate values of economic variables exists. We show that a maximum sustainable level of debt almost always exists. Most interestingly, it normally occurs at a ‘catastrophe’ rather than a ‘degeneracy’, i.e. where variables such as capital and consumption are in the interiors, rather than at the limits, of their economically meaningful ranges. This means that if debt is increased step by step, the economy may suddenly collapse without obvious warning.
The 2.5PN gravitational wave polarisations from inspiralling compact binaries in circular orbits
Creators: name: Arun, K G
name: Blanchet, Luc
name: Iyer, Bala R
name: Qusailah, Moh'd S S
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the multipolar post-Minkowskian and matching formalism we compute the gravitational waveform of inspiralling compact binaries moving in quasi-circular orbits at the second and a half post-Newtonian (2.5PN) approximation to general relativity. The inputs we use include notably the mass-type quadrupole at the 2.5PN order, the mass octupole and current quadrupole at the 2PN order, the mass $2^5$-pole and current $2^4$-pole at 1PN. The non-linear hereditary terms come from the monopole-quadrupole multipole interactions or tails, present at the 1.5PN, 2PN and 2.5PN orders, and the quadrupole-quadrupole interaction arising at the 2.5PN level. In particular, the specific effect of non-linear memory is computed using a simplified model of binary evolution in the past. The ``plus'' and ``cross'' wave polarisations at the 2.5PN order are obtained in ready-to-use form, extending the 2PN results calculated earlier by Blanchet, Iyer, Will and Wiseman.
description: 45 pages, version which includes the correction of an Erratum to be published in Class. Quant. Grav. (2005)
SDSN@RT: a middleware environment for single-instance multi-tenant cloud applications
Creators: name: Kumara, Indika
name: Han, Jun
name: Colman, Alan
name: Heuvel, Willem-Jan van den
name: Tamburri, Damian A.
name: Kapuruge, Malinda
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: With the Single-Instance Multi-Tenancy (SIMT) model for composite Software-as-a-Service (SaaS) applications, a single composite application instance can host multiple tenants, yielding the benefits of better service and resource utilization, and reduced operational cost for the SaaS provider. An SIMT application needs to share services and their aggregation (the application) among its tenants while supporting variations in the functional and performance requirements of the tenants. The SaaS provider requires a middleware environment that can deploy, enact and manage a designed SIMT application, to achieve the varied requirements of the different tenants in a controlled manner. This paper presents the SDSN@RT (Software-Defined Service Networks @ RunTime) middleware environment that can meet the aforementioned requirements. SDSN@RT represents an SIMT composite cloud application as a multi-tenant service network, where the same service network simultaneously hosts a set of virtual service networks (VSNs), one for each tenant. A service network connects a set of services, and coordinates the interactions between them. A VSN realizes the requirements for a specific tenant and can be deployed, configured, and logically isolated in the service network at runtime. SDSN@RT also supports the monitoring and runtime changes of the deployed multi-tenant service networks. We show the feasibility of SDSN@RT with a prototype implementation, and demonstrate its capabilities to host SIMT applications and support their changes with a case study. The performance study of the prototype implementation shows that the runtime capabilities of our middleware incur little overhead.
Business Cycle Asymmetries: Characterisation and Testing based on Markov-Switching Autoregressions
Creators: name: Clements, Michael
name: Krolzig, Hans-Martin
name: Clements, Michael
name: Krolzig, Hans-Martin
Publisher: name: Unknown
Year: 1998
Subjects: subject: Institutional and Behavioral Economics
subject: Research Methods/ Statistical Methods
subject: Business cycle asymmetries
subject: Markov-switching models
subject: non-parametric tests

description: We propose testing for business cycle asymmetries in Markov-switching autoregressive (MS-AR) models. We derive the parametric restrictions on MS-AR models that rule out types of asymmetries such as deepness, steepness, and sharpness, and set out a testing procedure based on Wald statistics which have standard asymptotics. For a two-regime model, such as that popularised by Hamilton (1989), we show that deepness implies sharpness (and vice versa) while the process is always nonsteep. We illustrate with two and three-state MS models of US GNP growth, and with models of US output and employment. Our findings are compared with those obtained from standard nonparametric tests.
The Physical Conditions and Metal Enrichment of Low-Redshift Interstellar and Intergalactic Media: The Benefits of High-Resolution Ultraviolet Spectra
Creators: name: Tripp, Todd M.
name: Bowen, David V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To underscore the value of high spectral resolution for the study of low-z QSO absorption lines, we briefly present Space Telescope Imaging Spectrograph echelle data that demonstrate how increased resolution leads to dramatic improvement in line measurements. We show that even R = lambda/Delta lambda = 20,000 is insufficient for some measurements. The higher the resolution the better, but R ~ 50,000 is adequate for many outstanding questions about the IGM and the ISM of galaxies that can be probed using QSO absorption lines.
description: Contribution to "Hubble's Science Legacy: Future Optical-Ultraviolet Astronomy from Space"
Production Externalities and Two-Way Distortion in Principal-Multi-Agent Problems
Creators: name: Lockwood, Ben
name: Lockwood, Ben
Publisher: name: Unknown
Year: 1999
Subjects: Agricultural and Food Policy
Production Economics

description: This paper studies an otherwise standard principal-agent problem with hidden information, but whether there are positive production externalities between agents: the output of any agent depends positively on the e¤ort expended by other agents. It is shown that the optimal contract for the principal exhibits two-way distortion: the e¤ort of any agent is oversupplied (relative to the …rst-best) when his marginal cost of e¤ort is low, and undersupplied his marginal cost of e¤ort is high. This pattern of distortion cannot otherwise arise in optimal single- or multi-agent incentive contracts, unless there are countervailing incentives. However, unlike the countervailing incentives case, the pattern of distortion is robust to the precise form of the externality.
Feminist Select Passages: An Online Reader
Creators: name: Hamedanian, Fatemeh
Publisher: name: figshare
Year: 2022
Subjects: subject: 220306 Feminist Theory
subject: FOS: Philosophy, ethics and religion
subject: Gender studies

description: This book was published substantially online and is intended as an online resource. The book consists of various writings and translations from a feminist perspective and paradigm. It is a good reference book for students of gender studies, family studies and women's studies in Persian.
Recursion method and one-hole spectral function of the Majumdar-Ghosh model
Creators: name: Kuzian, R. O.
name: Hayn, R.
name: Richter, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the application of the recursion method to the calculation of one-particle Green's functions for strongly correlated systems and propose a new way how to extract the information about the infinite system from the exact diagonalisation of small clusters. Comparing the results for several cluster sizes allows us to establish those Lanczos coefficients that are not affected by the finite size effects and provide the information about the Green's function of the macroscopic system. The analysis of this 'bulk-related' subset of coefficients supplemented by alternative analytic approaches allows to infer their asymptotic behaviour and to propose an approximate analytical form for the 'terminator' of the Green's function continued fraction expansion for the infinite system. As a result, the Green's function acquires the branch cut singularity corresponding to the incoherent part of the spectrum. The method is applied to the spectral function of one-hole in the Majumdar-Ghosh model (the one-dimensional $ t-J-J^{\prime}$ model at $J^{\prime}/J=1/2$). For this model, the branch cut starts at finite energy $ω_0$, but there is no upper bound of the spectrum, corresponding to a linear increase of the recursion coefficients. Further characteristics of the spectral function are band gaps in the middle of the band and bound states below $ω_0$ or within the gaps. The band gaps arise due to the period doubling of the unit cell and show up as characteristic oscillations of the recursion coefficients on top of the linear increase.
description: 12 pages, 7 figures
Внешняя политика Турецкой Республики в межвоенный период
Creators: name: Хумуриц А.А.
name: Разумный В.В.
Publisher: name: Архонт
Year: 2019
Subjects: ТУРЦИЯ
БЛИЖНИЙ ВОСТОК
БАЛКАНСКИЙ ПОЛУОСТРОВ
ЧЕРНОМОРСКИЕ ПРОЛИВЫ
ГЕОПОЛИТИКА

description: В данной статье рассмотрены особенности внешней политики Турецкой Республики в период с 1923 по 1939 гг., предпринята попытка проанализировать влияние Турции на глобальные и региональные процессы. Рассмотрена роль Турции в геополитическом противоборстве между соперничающими блоками накануне Второй мировой войны. Авторы изучали внешнеполитическую деятельность Турецкой Республики, как самодостаточного и влиятельного игрока на Балканах и на Ближнем Востоке.
Symplectic Tori in Homotopy E(1)'s
Creators: name: Vidussi, Stefano
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57R17, 57R57

description: This short note presents a simple construction of nonisotopic symplectic tori representing the same primitive homology class in the symplectic 4-manifold E(1)_K, obtained by knot surgery on the rational elliptic surface E(1) with the left-handed trefoil knot K. E(1)_K has the simplest homotopy type among simply-connected symplectic 4-manifolds known to exhibit such property.
description: 5 pages, 2 figures. To appear in Proc.Amer.Math.Soc
Dynamical System Analysis of a Three Fluid Cosmological Model : An Invariant Manifold approach
Creators: name: Pal, Subhajyoti
name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The present paper considers a three-fluid cosmological model consisting of noninteracting dark matter, dark energy and baryonic matter in the background of the Friedmann- Robertson- Walker- Lemaitre flat spacetime. It has been assumed that the dark matter takes the form of dust whereas the dark energy is a quintessence (real) scalar field with exponential potential. It has been further assumed that the baryonic matter is a perfect fluid with barotropic equation of states. The field equations for this model takes the form of an autonomous dynamical system after some suitable changes of variables. Then a complete stability analysis is done considering all possible parameter (the adiabatic index of the baryonic matter and the parameter arising from the dark energy potential) values and for both the cases of hyperbolic and non-hyperbolic critical points. For non-hyperbolic critical points, the invariant manifold theory (center manifold approach) is applied. Finally various topologically different phase planes and vector field diagrams are produced and the cosmological interpretation of this model is presented.
description: 26 pages, 8 figures, 16 tables
IDENTIFICATION AND ESTIMATION OF A LABOUR MARKET MODEL FOR THE TRADEABLES SECTOR: THE GREEK CASE
Creators: name: Milas, Costas
name: Otero, Jesus G.
name: Milas, Costas
name: Otero, Jesus G.
Publisher: name: Unknown
Year: 1999
Subjects: subject: International Relations/Trade
subject: Labor and Human Capital
subject: Labour market
subject: tradeable goods
subject: cointegration
subject: identifying restrictions
subject: Greece

description: This paper derives a theoretical labour market model for the tradeables sector of a small open economy. Using Greek manufacturing data and applying multivariate cointegrating techniques, two cointegrating vectors are estimated based on the a priori restrictions provided by the theoretical model; a labour demand and a real exchange rate equation, respectively. The short-run estimates of the model suggest that labour decisions not only depend upon past disequilibria in the labour market, but also on the discrepancy between the real exchange rate and its implied long-run equilibrium relationship, that is, the magnitude of the real exchange rate misalignment.
Minority Control: An Analysis of British Companies using Voting Power Indices
Creators: name: Leech, Dennis
name: Leech, Dennis
Publisher: name: Unknown
Year: 1999
Subjects: subject: Political Economy
subject: Research Methods/ Statistical Methods
subject: Ownership and control
subject: power indices
subject: Shapley-Shubik index
subject: Banzhaf index
subject: oceanic games
subject: co-operative game theory

description: An exercise in the empirical use of voting power indices from cooperative game theory applied to ownership data for large companies, this paper contributes in two areas: (1) the analysis of company control based on shareholder voting power, and (2) the empirical use of power indices and understanding of the comparative properties of different indices. New algorithms for calculating power indices, which quantify voting power in weighted voting bodies like company meetings, are applied to detailed data on beneficial ownership of 444 large UK companies without majority control. The results show that the Banzhaf index is, and the Shapley-Shubik index is not, useful for this analysis and a control classification of the firms is obtained.
Low-Wage Mobility in the Italian Labour Market
Creators: name: Cappellari, Lorenzo
name: Cappellari, Lorenzo
Publisher: name: Unknown
Year: 1999
Subjects: subject: Financial Economics
subject: Labor and Human Capital
subject: low-pay
subject: wage mobility
subject: initial conditions problem

description: This paper uses SHIW panel data for 1993 and 1995 to model individual transition probabilities at the bottom of the Italian wage distribution. The analysis is based on a bivariate probit model with endogenous switching which allows tackling the initial conditions problem, i.e. the potential endogeneity of the conditioning starting state. Results show the appropriateness of such a choice: the correlation between state and transition probabilities is significantly different from zero, while overlooking endogeneity leads to overstatement of both size and significance of coefficients in the transition equation. The paper shows that while some factors such as education, sex and geographical location have an effect on low-pay persistence, job related variables are more effective in avoiding falls into low-pay from higher pay. It is also shown how raw persistence involves a considerable share of true state dependence, pointing towards the existence of low-pay stigma.
Field-selective classical spin liquid and magnetization plateaus on kagome lattice
Creators: name: Tokushuku, Kunio
name: Mizoguchi, Tomonari
name: Udagawa, Masafumi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We obtain a classical spin liquid (CSL) phase by applying a magnetic field in $J_1$-$J_2$-$J_3$ Ising model on a kagome lattice. As we proved in the previous study [Phys. Rev. Lett. {\bf 119}, 077207 (2017)], this model realizes one species of CSL, the hexamer CSL, at zero magnetic field, which consists of macroscopically degenerate spin configurations with mixed total magnetization, $M$. The magnetic field selects its subset, which can be mapped to a trimer covering of the dual lattice, and forms a magnetization plateau of $M=1/9$. In addition to this CSL, we find two other magnetization plateaus at $M=5/9$ and $17/27$, which are ascribed to the "multimer" superstructures on a dual lattice.
description: 7 pages, 7 figures
Isotopic dependence of the pygmy dipole resonance
Creators: name: Paar, N.
name: Niksic, T.
name: Vretenar, D.
name: Ring, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The isotopic dependence of the excitation energies of the pygmy dipole resonance (PDR) is analyzed in the framework of the self-consistent relativistic Hartree-Bogoliubov (RHB) model and the relativistic quasiparticle random-phase approximation (RQRPA). The DD-ME1 density-dependent meson-exchange interaction is used in the effective mean-field Lagrangian, and pairing correlations are described by the pairing part of the finite-range Gogny interaction D1S. Model calculations reproduce available experimental data on charge radii, the neutron skin, neutron separation energies, and excitation energies of isovector giant dipole resonances in Ni, Sn and Pb nuclei. In all three isotopic chains the one-neutron separation energies decrease with mass number much faster than the excitation energies of the PDR. As a result, already at moderate proton-neutron asymmetry the PDR peak energy is calculated above the neutron emission threshold. This result has important implications for the observation of the PDR in (gamma,gamma') experiments.
description: 9 pages, 4 figures, accepted for publication in Phys. Lett. B
Active Learning-based Classification in Automated Connected Vehicles
Creators: name: Abdellatif, Alaa Awad
name: Chiasserini, Carla Fabiana
name: Malandrino, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Machine learning has emerged as a promising paradigm for enabling connected, automated vehicles to autonomously cruise the streets and react to unexpected situations. A key challenge, however, is to collect and select real-time and reliable information for the correct classification of unexpected, and often rare, situations that may happen on the road. Indeed, the data generated by vehicles, or received from neighboring vehicles, may be affected by errors or have different levels of resolution and freshness. To tackle this challenge, we propose an active learning framework that, leveraging the information collected through onboard sensors as well as received from other vehicles, effectively deals with scarce and noisy data. In particular, given the available information, our solution selects the data to add to the training set by trading off between two essential features, namely, quality and diversity. The results, obtained using real-world data sets, show that the proposed method significantly outperforms state-of-the-art solutions, providing high classification accuracy at the cost of a limited bandwidth requirement for the data exchange between vehicles.
title: Sports Leaders, Values and Identity: The Tutor Training Process
Creators: name: Scott, David Steven
Publisher: name: The Open University
Year: 2012

description: The world of sport, from the elite to the community level, relies on the recruitment of volunteers. With recent research showing the number of young volunteers declining, the role of organisations that promote youth volunteering, such as Sports Leaders UK, will prove crucial in the long term sustainability of sport in the UK. However there is a lack of research directed at how those who teach these courses are taught themselves during the tutor training process. Research into the lifelong learning realm has identified problems associated with this kind of learning, most notably that of studentship. This project aims to explore the tutor training process of Sports Leaders UK in order to determine whether their values are being taught and understood, or whether studentship is prevalent. An autoethnographic approach was adopted, which involved participating in tutor training courses, interviewing other attendees and the tutor trainers, and conducting a discourse analysis of the materials involved. The results are presented in the form of a first person narrative account and reflect my experiences of the tutor training process. The findings indicate that there is a lack of studentship on the courses due to the agency afforded to candidates and the adaptation of the Courses to appeal to the audiences’ identity.
Low-pay transitions and attrition bias in Italy: An analysis using simulation based estimation
Creators: name: Cappellari, Lorenzo
name: Cappellari, Lorenzo
Publisher: name: Unknown
Year: 1999
Subjects: subject: Financial Economics
subject: Research Methods/ Statistical Methods
subject: Low-pay transitions
subject: Attrition bias
subject: Simulation-based estimation

description: This paper analyses the extent to which existing econometric models of low-pay transition probabilities in Italy are biased by the presence of endogenous panel attrition. Non-random exits from the sample of wage earners may result from both demand and supply side factors and this could lead to under- or overestimation (respectively) of the extent of low-wage persistence. The analysis is carried out by extending the bivariate probit model used in Cappellari [1999] (where starting state and transition probabilities are jointly modelled thus tackling the endogeneity of the conditioning starting wage state) with a third equation which controls for the non-randomness of panel attrition. The resulting trivariate probit model with endogenous switching, whose evaluation is not feasible within the routines customarily available in microeconometric packages, is implemented by applying simulation estimation techniques. Results show the ignorability of attrition in SHIW data, thus pointing towards the robustness of the results previously obtained without controlling for attrition.
Stakeholders' Engagement for Airport Noise Management
Creators: name: Burtea, Narcisa
name: Dragasanu, L.
name: Micu, M.
name: Rat, A.
name: Pristavu, L.
Publisher: name: Zenodo
Year: 2020

description: Airports owned by the state, as it is the case for most Romanian Airports, have little decision-making competence in Land-use Planning. In this case, Communication and Engagement with all relevant stakeholders, as well as with residents from communities surrounding the airport, can become crucial for the prevention of encroachment. In such cases, in the absence of a complete and harmonised legislative framework for airport noise, it is difficult to understand and choose an effective intervention to reduce noise exposure and impact.
Performance Analysis of Quantized Uplink Massive MIMO-OFDM With Oversampling Under Adjacent Channel Interference
Creators: name: Üçüncü, Ali Bulut
name: Björnson, Emil
name: Johansson, Håkan
name: Larsson, Erik G.
name: Yılmaz, Ali Özgür
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Massive multiple-input multiple-output (MIMO) systems have attracted much attention lately due to the many advantages they provide over single-antenna systems. Owing to the many antennas, low-cost implementation and low power consumption per antenna are desired. To that end, massive MIMO structures with low-resolution analog-to-digital converters (ADC) have been investigated in many studies. However, the effect of a strong interferer in the adjacent band on quantized massive MIMO systems have not been examined yet. In this study, we analyze the performance of uplink massive MIMO with low-resolution ADCs under frequency selective fading with orthogonal frequency division multiplexing in the perfect and imperfect receiver channel state information cases. We derive analytical expressions for the bit error rate and ergodic capacity. We show that the interfering band can be suppressed by increasing the number of antennas or the oversampling rate when a zero-forcing receiver is employed.
Morphological Classification of Galaxies by Shapelet Decomposition in the Sloan Digital Sky Survey II: Multiwavelength Classification
Creators: name: Kelly, B. C.
name: McKay, T. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe the application of the `shapelet' linear decomposition of galaxy images to multi-wavelength morphological classification using the $u,g,r,i,$ and $z$-band images of 1519 galaxies from the Sloan Digital Sky Survey. We utilize elliptical shapelets to remove to first-order the effect of inclination on morphology. After decomposing the galaxies we perform a principal component analysis on the shapelet coefficients to reduce the dimensionality of the spectral morphological parameter space. We give a description of each of the first ten principal component's contribution to a galaxy's spectral morphology. We find that galaxies of different broad Hubble type separate cleanly in the principal component space. We apply a mixture of Gaussians model to the 2-dimensional space spanned by the first two principal components and use the results as a basis for classification. Using the mixture model, we separate galaxies into three classes and give a description of each class's physical and morphological properties. We find that the two dominant mixture model classes correspond to early and late type galaxies, respectively. The third class has, on average, a blue, extended core surrounded by a faint red halo, and typically exhibits some asymmetry. We compare our method to a simple cut on $u-r$ color and find the shapelet method to be superior in separating galaxies. Furthermore, we find evidence that the $u-r=2.22$ decision boundary may not be optimal for separation between early and late type galaxies, and suggest that the optimal cut may be $u-r \sim 2.4$.
description: 42 pages, 18 figs, revised version in press at AJ. Some modification to the technique, more discussion, addition/deletion/modification of several figures, color figures have been added. A high resolution version may be obtained at http://bllac.as.arizona.edu/~bkelly/shapelets/shapelets_ugriz.ps.gz
Nanodiamond dust and the energy distribution of quasars
Creators: name: Binette, L.
name: Andersen, A. C.
name: Mutschke, H.
name: Haro-Corzo, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The spectral energy distribution of quasars shows a sharp steepening of the continuum shortward of ~ 1100 A. The steepening could be a result of dust absorption. We present a dust extinction model which considers crystalline carbon grains and compare it with SMC-like dust extinction consisting of a mixture of silicate grains with graphite or amorphous carbon grains. We show that the sharp break seen in individual quasar spectra of intermediate redshif \~ 1-2 can be reproduced by dust absorption provided the extinction curve consists of nanodiamonds, composed of terrestial cubic diamonds or of diamonds similar to the presolar nanodiamonds found in primitive meteorites.
description: In proceedings of Granada workshop on high redshift radio-galaxies, Spain 2005, to appear in Astronomishe Nachrichten
Investment Subsidies and Time-Consistent Environmental Policy
Creators: name: Abrego, Lisandro
name: Perroni, Carlo
name: Abrego, Lisandro
name: Perroni, Carlo
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Pollution Abatement
subject: Emission Taxes
subject: Investment Subsidies

description: We describe a model of dynamic pollution abatement choices with heterogeneous agents, where, due to the presence of a distributional objective and to the absence of incentive-compatible compensation mechanisms, the choice of a second-best level of emission taxation is time-inconsistent. In this model, we investigate whether investment subsidies can act as a substitute for policy commitment.
A realistic non-local heat engine based on Coulomb coupled systems
Creators: name: Singha, Aniket
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Optimal non-local heat-engines, based on Coulomb-coupled systems, demand a sharp step-like change in the energy resolved system-to-reservoir coupling around the ground state of quantum-dots. Such a sharp step-like transition in the system-to-reservoir coupling cannot be achieved in a realistic scenario. Here, I propose realistic design for non-local heat engine based on Coulomb-coupled system, which circumvents the need for any change in the system-to-reservoir coupling, demanded by the optimal set-ups discussed in literature. I demonstrate that an intentionally introduced asymmetry (or energy difference) in the ground state configuration between adjacent tunnel coupled quantum dots, in conjugation with Coulomb coupling, is sufficient to convert the stochastic fluctuations from a non-local heat source into a directed flow of thermoelectric current. The performance, along with the regime of operation, of the proposed heat engine is then theoretically investigated using quantum-master-equation (QME) approach. It is demonstrated that the theoretical maximum power output for the proposed set-up is limited to about $50\%$ of the optimal design. Despite a lower performance compared to the optimal set-up, the novelty of the proposed design lies in the conjunction of fabrication simplicity along with reasonable power output. At the end, the sequential transport processes leading to a performance deterioration of the proposed set-up are analyzed and a method to alleviate such transport processes is discussed. The set-up proposed in this paper can be used to design and fabricate high-performance non-local cryogenic heat engines.
description: 19 Pages, 11 Figures
UBC Farm Mobile Market Trailer Project
Creators: name: Ching, Pong
name: Hoseini, Houman
name: Hsueh, Thomas
name: Lee, Wilson
name: Luo, Alex
name: Sheasby, Tyler
name: Soleimani-Dashtaki, Saghar
Publisher: name: The University of British Columbia
Year: 2010

description: 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.”
title: 'Self-Efficacy Beliefs' in a Study of Academic Writing? An Investigation Into the Potential Usefulness of Bandura's Notion of 'Self-Efficacy Beliefs' for an Exploration Into the Relationships Between Five Women's Beliefs and Feelings About Their Writing Practices and Experiences in a Research Course in a UK Based University
Creators: name: McMullan, Jennifer
Publisher: name: The Open University
Year: 2012

description: This dissertation reports on a study aiming to explore the writing related beliefs and feelings of five women who are in the first year of a research qualification in a United Kingdom (UK) university. The study used a context rich methodology drawing on principles from ethnography and linguistics to explore the writing related beliefs and feelings of the women in the study through the lens of ‘self-efficacy beliefs’. ‘Talk-around-text’ interviews, which draw on the participants’ research-related written texts, are used to foreground the participants’ beliefs and feelings about their writing abilities. In addition, data in the form of a series of entries from personal ‘writing diaries’ are drawn on to provide information related to the participants’ beliefs and feelings about writing abilities while a written text is being worked on in the home. The study suggests that while Bandura’s notion of ‘self-efficacy beliefs’ facilitated an analytic gaze that foregrounded the participants’ beliefs and feelings about their writing abilities, the notion was limited because it did not account for other contextual features that frame writing, like the effects of finances, time or the physical environment.
Economic Integration and Human Capital Investment
Creators: name: Ireland, Norman
name: Merzoni, Guido
name: Ireland, Norman
name: Merzoni, Guido
Publisher: name: Unknown
Year: 1999
Subjects: Agricultural and Food Policy
Labor and Human Capital

description: In this paper we seek to characterise a market for heterogeneous managers created by heterogeneous firms and the decisions on investment in both sector-specific and firm-specific human capital when those decisions are made prior to the realisation of firms' profitability and the degree of markets’ integration may vary. We consider the (Nash) equilibrium and relate this to a first-best allocation. The rent-seeking motives of managers and firms will generally make sector- and firm-specific investment decisions not socially optimum, both with respect to the number of investors and the level of each investment. The effect on welfare of markets’ integration varies with the nature of the skills considered. With more general, sector-specific, skills more integration, by increasing the matching ability of the market, reduces the distortion caused by rentseeking, and increases social welfare. However, with more specific skills the increased matching ability of a more integrated market, by making managers more mobile, destroys some firm-specific human capital and so reduces welfare.
D3.2 First training module for Climate Smart Farming demonstration
Creators: name: Instituut voor Landbouw en Visserijonderzoek
Publisher: name: Zenodo
Year: 2024

description: This deliverable presents the first training module. Training will be organized during annual meetings and will follow a two-step logic. During the annual international meetings, the NCs/CFAs will be trained on the respective topics. During the national meetings, the NCs/CFAs will train the PDFs.
Deliverable D9.1 : "Project management guidelines, including administrative and financial procedures and informed consent template"
Creators: name: Nunzia Cito, Mariella Quarto
Publisher: name: Zenodo
Year: 2016

description: The deliverable presents the main processes to be managed during the project with the aim to reach efficiently the
 governance of the project and its Consortium Bodies.
 This guidelines for management is a practical tool to be used by all the Beneficiaries and project decisional bodies, in order
 to realize a common approach according to procedures and rules that any organization should follow.
 Six .macro-processes are the pillars of the project:
 - internal and external communication,
 - reporting to the decision making bodies,
 - monitoring and internal assessment,
 - critical implementation risk and mitigation procedures
 - open access & visibiity of EU funding
 - informed consent procedures
 These processes interact among them and are broken down in managing and operative procedures, described in this
 deliverable. The document follows the project life and requirements. Aims of this deliverable are to give a pragmatic approach to carry on the project activities and to create a project life cycl
 methodology, using managing procedures.
 We trust that each development effort goes through a life cycle, a process, including a
 The main function of a life cycle model is to establish the order in which a project specifies, implements, tests, and perfor
 its activities. The appropriate life cycle model can streamline goals.
 The life cycle used model is a risk-oriented approach that breaks down the project into different Work Packages (WP)
 down in different Tasks and SubTasks.
Dispersion of the dielectric function of a charge-transfer insulator
Creators: name: Kuzian, R. O.
name: Hayn, R.
name: Barabanov, A. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the problem of dielectric response in the strong coupling regime of a charge transfer insulator. The frequency and wave number dependence of the dielectric function $ε({\bf q},ω)$ and its inverse $ε^{-1}({\bf q},ω)$ is the main object of consideration. We show that the problem, in general, cannot be reduced to a calculation within the Hubbard model, which takes into account only a restricted number of electronic states near the Fermi energy. The contribution of the rest of the system to the longitudinal response (i.e. to $ε^{-1}({\bf q},ω)$) is essential for the whole frequency range. With the use of the spectral representation of the two-particle Green's function we show that the problem may be divided into two parts: into the contributions of the weakly correlated and the Hubbard subsystems. For the latter we propose an approach that starts from the correlated paramagnetic ground state with strong antiferromagnetic fluctuations. We obtain a set of coupled equations of motion for the two-particle Green's function that may be solved by means of the projection technique. The solution is expressed by a two particle basis that includes the excitonic states with electron and hole separated at various distances. We apply our method to the multiband Hubbard (Emery) model that describes layered cuprates. We show that strongly dispersive branches exist in the excitonic spectrum of the 'minimal' Emery model ($1/U_d=U_p=t_{pp}=0$) and consider the dependence of the spectrum on finite oxygen hopping $t_{pp}$ and on-site repulsion $U_p$. The relationship of our calculations to electron energy loss spectroscopy is discussed.
description: 22 pages, 5 figures
PORTUGAL'S ENTRY INTO THE EC: THE CHALLENGE FOR SMALL FARMERS
Creators: name: Meyer, Richard L.
name: Henriques, Pedro Damiao
name: Avillez, Francisco
name: Rask, Norman
name: Meyer, Richard L.
name: Henriques, Pedro Damiao
name: Avillez, Francisco
name: Rask, Norman
Publisher: name: Unknown
Year: 1988
Subjects: Demand and Price Analysis
Production Economics

description: Portuguese farmers face product price declines of 15 to 30 percent because of the country's entrance into the European Economic Community (EC). Simulations suggest that technological changes can compensate for price declines on large farms. Medium farms may suffer because they cannot achieve sufficient scale nor cannot earn enough off-farm income.
Gemini imaging of QSO host galaxies at z~2
Creators: name: Croom, Scott
name: Schade, David
name: Boyle, Brian
name: Shanks, Tom
name: Miller, Lance
name: Smith, Robert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of a Gemini adaptive optics (AO) imaging program to investigate the host galaxies of typical QSOs at z~2. Our aim is to study the host galaxies of typical, L*_qso QSOs at the epoch of peak QSO and star formation activity. The large database of faint QSOs provided by the 2dF QSO Redshift Survey allows us to select a sample of QSOs at z=1.75-2.5 which have nearby (<12 arcsecond separation) bright stars suitable for use as AO guide stars. We have observed a sample of 9 QSOs. The images of these sources have AO corrected full-width at half-maximum of between 0.11 and 0.25 arcseconds. We use multiple observations of point spread function (PSF) calibration star pairs in order to quantify any uncertainty in the PSF. We then factored these uncertainties into our modelling of the QSO plus host galaxy. In only one case did we convincingly detect a host (2QZ J133311.4+001949, at z=1.93). This host galaxy has K=18.5+-0.2 mag with a half-light radius, r_e=0.55+-0.1'', equivalent to ~3L*_gal assuming a simple passively evolving model. From detailed simulations of our host galaxy modelling process, we find that for four of our targets we should be sensitive to host galaxies that are equivalent to ~2L*_gal (passively evolved). Our non-detections therefore place tight constraints on the properties of L*_qso QSO host galaxies, which can be no brighter (after allowing for passive evolution) than the host galaxies of L*_qso AGN at low redshift, although the QSOs themselves are a factor of ~50 brighter. This implies that either the fueling efficiency is much greater at high redshift, or that more massive black holes are active at high redshift.
description: 13 pages, 8 figures, using emulateapj.cls. Accepted for publication in ApJ. Version with high quality figures available from http://www.aao.gov.au/local/www/scroom/publications/
Atendimento a Ciência Aberta: mapeando periódicos das Ciências Agrárias da SciELO e da ABEC Brasil
Creators: name: Galleti, Silvia
name: Bacilieri, Simone
name: Montero, Edna
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão “O meu Póster em 1 minuto”, da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
Model Reduction Framework with a New Take on Active Subspaces for Optimization Problems with Linearized Fluid-Structure Interaction Constraints
Creators: name: Boncoraglio, Gabriele
name: Farhat, Charbel
name: Bou-Mosleh, Charbel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, a new take on the concept of an active subspace for reducing the dimension of the design parameter space in a multidisciplinary analysis and optimization (MDAO) problem is proposed. The new approach is intertwined with the concepts of adaptive parameter sampling, projection-based model order reduction, and a database of linear, projection-based reduced-order models equipped with interpolation on matrix manifolds, in order to construct an efficient computational framework for MDAO. The framework is fully developed for MDAO problems with linearized fluid-structure interaction constraints. It is applied to the aeroelastic tailoring, under flutter constraints, of two different flight systems: a flexible configuration of NASA's Common Research Model; and NASA's Aeroelastic Research Wing #2 (ARW-2). The obtained results illustrate the feasibility of the computational framework for realistic MDAO problems and highlight the benefits of the new approach for constructing an active subspace in both terms of solution optimality and wall-clock time reduction
title: Are Opportunities Created By Micro-Entrepreneurs In Response To Other People?
Creators: name: Jordan, Josephine Eveline
Publisher: name: The Open University
Year: 2019

description: The proposition that entrepreneurial opportunity follows rather than precedes entrepreneurial action is hard to grasp but nonetheless has been a proposition central to entrepreneurship theory since Sarasvathy first described effectuation as a behavioural style of expert entrepreneurs at the turn of the millennium. In a first attempt to trace opportunity as it developed through entrepreneurial action, opportunity was traced through changes in entrepreneurial activity in a micro-enterprise with an intent of relating changes to social triggers. In a multi-method reconstruction of the timeline of a micro-enterprise, changes in entrepreneurial activity that are plausibly consistent with changes in opportunity were surprisingly easy to see but people were barely mentioned. Changes were also not remembered when asked directly even when having been described moments before. To separate the possibility that entrepreneurial experience was buffering the enterprise from disruptive change, the study was re-run with a less experienced entrepreneur. Once again, changes in entrepreneurial activity were easy to discern and this time many people were mentioned. But changes were again not remembered when asked directly and people were not associated with changes. Bringing the results of the two case studies together suggested that distinctive changes in entrepreneurial activity occur irregularly but around twice a year and changes are prompted endogenously rather than exogenously by direct feedback from people. It seemed almost as if changes occur when the potential of a plan of action drops below a comfortable level and entrepreneurs are encouraged to return to illuminating the means-ends in a situation to expand their horizons. To place this thinking in the context of Sarasvathy’s original work, the dissertation concludes by returning to the first principles of pragmatism and what it means to bring the future into the present.
Performance and First Physics Results of the SVT Trigger at CDF II
Creators: name: Vila, I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For the first time in a hadron collider, a novel trigger processor, the Silicon Vertex Trigger (SVT), allows to select the long-lived heavy flavor particles by cutting on the track impact parameter with a precision similar to that of the offline reconstruction. Triggering on displaced tracks has enriched the B-physics program by enhancing the B yields of the lepton-based triggers and opened up full hadronic triggering at CDF. After a first commissioning period, the SVT is fully operational, performing very closely to its design capabilities. System performance and first physics results based on SVT selected data samples are presented.
description: Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 (eConf C0304052). 4 pages LaTeX, 6 eps figures
Commercial Agriculture Versus The Farm Home
Creators: name: Forster, D. Lynn
name: Stout, Thomas T.
name: Forster, D. Lynn
name: Stout, Thomas T.
Publisher: name: Unknown
Year: 1988
Subjects: Agricultural and Food Policy
Consumer/Household Economics

description: To better understand the evolving structure of agriculture, data are being collected over several years from a representative panel of farm operator households. The analysis provides information about farm households' level of income, their financial condition, their off-farm employment, the importance of non-farm income, and their management and marketing innovations.