cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DEVELOPMENT OF INSTITUTIONS AND THEIR INNOVATIONS TO REDUCE PERMANENTLY THE EFFECTS OF DROUGHTS ON AGRICULTURE (WITH IMPLICATION FOR ETHIOPIA)
Creators: name: Abebe, Kassahun
name: Abebe, Kassahun
Publisher: name: Unknown
Year: 1976
Subjects: Institutional and Behavioral Economics
Resource /Energy Economics and Policy

description: Drought is a natural hazard that cannot be avoided significantly within the present level of scientific development. Studies and experiments to overcome drought have not yet reached the stage of development where the world can depend on the available scientific technology to avoid droughts. As a result, both scientifically developed and the developing nations face the problem equally. The recent droughts of the Sahel and Northeast Africa and the current drought of the Great Plains of the United States show how diverse the distribution of the problem is and the range of possible effects that might be sustained in the poor regions of the world such as the Sahel and the more developed regions like the Great Plains. There is a large body of experience on drought problem and how to handle it in many countries today. Despite this, some less developed countries, though they had faced the problem from time to time, have not looked at it as a serious national problem requiring organized national efforts and planned action until very recently, late after they have seriously suffered the consequences. As a result of this unpreparedness they have suffered serious losses whenever they are attacked by drought and the confusion and inefficiency that follow have caused great damages both to human life and property beyond repair in most cases. Even worse, there are some countries today that have not set up any national institution to look after this problem even though they have faced drought several times. Therefore, what is attempted in this research work is to look at the incidences of droughts in some countries with different economic, social, and political backgrounds at given periods in their history and evaluate how they developed their drought combating institutions and carried out their different programs.
Renormalization Group calculations with k|| dependent couplings in a ladder
Creators: name: Abramovici, G.
name: Nickel, J. C.
name: Heritier, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We calculate the phase diagram of a ladder system, with a Hubbard interaction and an interchain coupling $t_\perp$. We use a Renormalization Group method, in a one loop expansion, introducing an original method to include $k_{||}$ dependence of couplings. We also classify the order parameters corresponding to ladder instabilities. We obtain different results, depending on whether we include $k_{||}$ dependence or not. When we do so, we observe a region with large antiferromagnetic fluctuations, in the vicinity of small $t_\perp$, followed by a superconducting region with a simultaneous divergence of the Spin Density Waves channel. We also investigate the effect of a non local backward interchain scattering : we observe, on one hand, the suppression of singlet superconductivity and of Spin Density Waves, and, on the other hand, the increase of Charge Density Waves and, for some values of $t_\perp$, of triplet superconductivity. Our results eventually show that $k_{||}$ is an influential variable in the Renormalization Group flow, for this kind of systems.
description: 20 pages, 19 figures, accepted in Phys. Rev. B 71 v. 24
A modular characterization of supersolvable lattices
Creators: name: Foldes, Stephan
name: Woodroofe, Russ
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 06C99, 05E99

description: We characterize supersolvable lattices in terms of a certain modular type relation. McNamara and Thomas earlier characterized this class of lattices as those graded lattices having a maximal chain that consists of left-modular elements. Our characterization replaces the condition of gradedness with a second modularity condition on the maximal chain of left-modular elements.
description: 9 pages, 2 figures; v2 includes corrections for publication
DEPENDENCY THEORY AND DEVELOPMENT ECONOMICS: AN ASSESSMENT OF SAMIR AMIN'S VIEWS
Creators: name: Wone, Elhadji Amadou
name: Wone, Elhadji Amadou
Publisher: name: Unknown
Year: 1981
Subjects: International Development

description: Dependency and neo-Marxist theorists have exerted a substantial impact upon development economics. Western development analysts are becoming more aware of the important role that social groups and their political struggles play in the development process. However, controversy over some key issues of world development rages between the neo-Marxist and dependency theorists and neoclassical economists. A chief element in this controversy is a conviction among dependency theorists that development in backward areas is related through the international market to the developed countries and is "blocked" because of its integration into the world capitalist system. Moreover, this integration is hypothesized to lead to the underdevelopment of Third World societies. Dependency theorists contend that because of the introduction of capitalism from outside, Third World economies are weak and national business groups in these countries are unable to launch and sustain industrialization. Furthermore, they argue that relations between developed countries and underdeveloped nations are relations of dependence. The purpose of this paper is to analyze Samir Amin's views on the role of agriculture in the development process of the Third World countries.
A PRIVATE VOLUNTARY ORGANIZATION APPROACH TO DEVELOPMENT FOR FREETOWN, SIERRA LEONE
Creators: name: Nikkel, Steven K.
name: Nikkel, Steven K.
Publisher: name: Unknown
Year: 1985
Subjects: International Development

description: Several aspects of the situation pertaining to the citizens of Freetown, Sierra Leone are described in the first two chapters. The societal and economic contexts of the community are most heavily emphasized, particularly the transfer of rural institutions to the city as well as the small-scale industry and marketing aspects of Freetown's economy. The following four chapters highlight several approaches to development in the Third World. Those described are farming systems research, marketing systems research and development, community development, diffusion of innovation, development education, and management. In the final chapter, the various approaches are synthesized into a conceptual framework. This framework is composed of the following steps: 1) Know yourself, your organization, and your clients; 2) Establish an information base (systems analysis); 3) Identify problems and potential solutions; 4) Formulate a strategy; 5) Implementation; 6) Evaluation; and 7) Terminate and indigenize. The first two steps of this framework are partially applied to the situation in Freetown, but full application of all steps awaits the author's new job assignment in Freetown.
Forward Induction in Arms Races
Creators: name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: SECS-P/01 Economia politica

description: I investigate a two-country non cooperative game where the status quo ante is asymmetric as one country is endowed with nuclear weapons while the other is not and is evaluating the opportunity of build up a nuclear arsenal. After identifying the conditions on payoffs such that the resulting reduced form is a coordination game with two symmetric equilibria, I resort to forward induction to show that the implicit signaling mechanism in it may lead countries to select the peaceful equilibrium in a symmetric environment where both are endowed with analogous arsenals.
NLTE models of line-driven stellar winds II. O stars in SMC
Creators: name: Krticka, Jiri
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate NLTE line-driven wind models of selected O stars in the spectral range of O4 to O9 in the Small Magellanic Cloud (SMC). We compare predicted basic wind properties, i.e. the terminal velocity and the mass-loss rate with values derived from observation. We found relatively good agreement between theoretical and observed terminal velocities. On the other hand, predicted mass-loss rates and mass-loss rates derived from observation are in a good agreement only for higher mass-loss rates. Theoretical mass-loss rates lower than approximately 10^{-7} M_o/year are significantly higher than those derived from observation. These results confirm the previously reported problem of weak winds, since our calculated mass-loss rates are in a fair agreement with predictions of Vink et al. (2001). We study multicomponent models for these winds. For this purpose we develop a more detailed description of wind decoupling. We show that the instability connected with the decoupling of individual wind elements may occur for low-density winds. In the case of winds with very low observed mass-loss rate the multicomponent effects are important for the wind structure, however this is not able to consistently explain the difference between predicted mass-loss rate and mass-loss rate derived from observation for these stars. Similar to previous studies, we found the dependence of wind parameters on the metallicity. We conclude that the wind mass-loss rate significantly increases with metallicity as dM/dt ~ Z^0.67, whereas the wind terminal velocity on average depends on metallicity only slightly, namely v_infty ~ Z^0.06 (for studied stars).
description: 15 pages; accepted for publication in MNRAS; the definitive version will be available at www.blackwell-synergy.com
Nonequilibrium induced by reservoirs: Physico-mathematical models and numerical tests
Creators: name: Klein, Rupert
name: Viand, Roya Ebrahimi
name: Höfling, Felix
name: Site, Luigi Delle
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In a recently proposed computational model of open molecular systems out of equilibrium [Ebrahimi Viand et al. J.Chem.Phys. 153, 101102 (2020)], the action of different reservoirs enters as a linear sum into the Liouville-type evolution equations for the open system's statistics. The linearity of the coupling is common to different mathematical models of open systems and essentially relies on neglecting the feedback of the system onto the reservoir due to their interaction. In this paper, we test the range of applicability of the computational model with a linear coupling to two different reservoirs, which induces a nonequilibrium situation. To this end, we studied the density profiles of Lennard-Jones liquids in large thermal gradients using nonequilibrium molecular dynamics simulations with open boundaries. We put in perspective the formulation of an extension of the mathematical model that can account for nonlinear effects.
A note on the Painleve analysis of a (2+1) dimensional Camassa-Holm equation
Creators: name: Gordoa, P. R.
name: Pickering, A.
name: Senthilvelan, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We investigate the Painleve analysis for a (2+1) dimensional Camassa-Holm equation. Our results show that it admits only weak Painleve expansions. This then confirms the limitations of the Painleve test as a test for complete integrability when applied to non-semilinear partial differential equations.
description: Chaos, Solitons and Fractals (Accepted for publication)
On the feedback solution of a differential oligopoly game with capacity adjustment
Creators: name: Dragone, Davide
name: Lambertini, Luca
name: Palestini, Arsen
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: SECS-P/01 Economia politica

description: We propose a simple method for characterising analytically the feedback solution of oligopoly games with capital accumulation à la Solow-Swan. As a result, it becomes possible to contrast the feedback equilibrium against the corresponding one generated by open-loop information. Our method accommodates extensions of the stripped down oligopoly model in several directions. As an example, we expand the setup to include environmental effects and Pigouvian taxation.
On the nature of bulges in general and of box/peanut bulges in particular. Input from $N$-body simulations
Creators: name: Athanassoula, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Objects designated as bulges in disc galaxies do not form a homogeneous class. I distinguish three types. The classical bulges, whose properties are similar to those of ellipticals and which form by collapse or merging. Boxy and peanut bulges, which are seen in near edge-on galaxies and which are in fact just a part of the bar seen edge-on. Finally disc-like bulges, which result from the inflow of (mainly) gas to the center-most parts, and subsequent star formation. I make a detailed comparison of the properties of boxy and peanut bulges with those of $N$-body bars seen edge-on and answer previously voiced objections about the links between the two. I also present and analyse simulations where a boxy /peanut feature is present at the same time as a classical spheroidal bulge and compare them with observations. Finally, I propose a nomenclature that can help distinguish between the three types of bulges and avoid considerable confusion.
description: 13 pages, 7 figures, accepted for publication in MNRAS
The Economics of Local Tourist Systems
Creators: name: Candela, Guido
name: Figini, Paolo
name: Scorcu, Antonello E.
name: Candela, Guido
name: Figini, Paolo
name: Scorcu, Antonello E.
Publisher: name: Unknown
Year: 2005
Subjects: Resource /Energy Economics and Policy

description: In this paper we analyse the Local Tourist System (LTS) as a particular case of Marshallian Industrial District. The LTS allows the identification of more effective policy tools for managing tourism. First, through the concept of LTS, the policy maker can take into account the complexity of tourism, characterised by a strong heterogeneity of goods, services and subjects involved; second, LTS helps promote a stronger co-ordination between the public and the private sector, by identifying a homogeneous territory and recognising its importance in tourists' decisions; third, through the LTS the policymaker can analyze the externalities and promotes the idea of collaborating networks in a context of local development. In the LTS framework, the anticommon problem can be analysed and contrasted. As the tourist has to buy different but intertwined goods which compose the holiday package, the failure in one of the markets can lead to the overall failure of the package. A LTS policy has to: i) co-ordinate the price policy of the different firms supplying 'single components' of the tourist product; ii) fix the price of the whole product; iii) impute a price to each component. We demonstrate that, through price policy co-ordination and under general conditions, the LTS can increase the size of tourism and the firms' profits, thereby reaching a more effective and efficient target in tourism policy. The recent introduction of LTS in the Italian legislation can be seen as a positive attempt of improving co-ordination in a complex sector such as tourism.
Participatory Approach in Decision Making Processes for Water Resources Management in the Mediterranean Basin
Creators: name: Giupponi, Carlo
name: Crimi, Jacopo
name: Mysiak, Jaroslav
name: Giupponi, Carlo
name: Crimi, Jacopo
name: Mysiak, Jaroslav
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: This paper deals with the comparative analysis of different policy options for water resources management in three south-eastern Mediterranean countries. The applied methodology follows a participatory approach throughout its implementation and is supported by the use of three different software packages dealing with water allocation budget, water quality simulation, and Multi Criteria Analysis, respectively. The paper briefly describes the general objectives of the SMART project and then presents the three local case studies, the valuation objectives and the applied methodology - developed as a general replicable framework suitable for implementation in other decision-making processes. All the steps needed for a correct implementation are therefore described. Following the conceptualisation of the problem, the choice of the appropriate indicators as well as the calculation of their weighting and value functions are detailed. The paper concludes with the results of the Multi Criteria and the related Sensitivity Analyses performed, showing how the different policy responses under consideration can be assessed and furthermore compared through case studies thanks to their relative performances. The adopted methodology was found to be an effective operational approach for bridging scientific modelling and policy making by integrating the model outputs in a conceptual framework that can be understood and utilised by non experts, thus showing concrete potential for participatory decision making.
Marcus' electron transfer rate revisited via a Rice-Ramsperger-Kassel-Marcus analogue: A unified formalism for linear and nonlinear solvation scenarios
Creators: name: Wang, Yao
name: Su, Yu
name: Xu, Rui-Xue
name: Zheng, Xiao
name: Yan, YiJing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In the pioneering work by R. A. Marcus, the solvation effect on electron transfer (ET) processes was investigated, giving rise to the celebrated nonadiabatic ET rate formula. In this work, on the basis of the thermodynamic solvation potentials analysis, we reexamine Marcus' formula with respect to the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. Interestingly, the obtained RRKM analogue, which recovers the original Marcus' rate that is in a linear solvation scenario, is also applicable to the nonlinear solvation scenarios, where the multiple curve{crossing of solvation potentials exists. Parallelly, we revisit the corresponding Fermi's golden rule results, with some critical comments against the RRKM analogue proposed in this work. For illustration, we consider the quadratic solvation scenarios, on the basis of physically well-supported descriptors.
description: 7 pages, 2 figures
An in vivo investigation of neuronal function in first episode schizophrenia : the effects of risperidone on patterns of cerebral metabolism and symptom profiles
Creators: name: Lane, Carol Mayne Jacqueline
Publisher: name: University of British Columbia
Year: 2009

description: Risperidone is a novel-atypical antipsychotic agent, effective in treating the symptoms of schizophrenia with fewer side effects than typical antipsychotics. Despite the wide-spread clinical use of this drug, studies examining the brain areas associated with risperidone treatment in human subjects are limited. Positron emission tomography (PET) employing the tracer fluorodeoxyglucose (FDG) labeled with the isotope 1 8F, is an in-vivo imaging technique that can be used to observe changes in the patterns of cerebral metabolism following administration of typical and atypical antipsychotics. We completed a series of studies in first-episode unmedicated schizophrenic subjects before and after an initial 2mg dose of risperidone and again following 6 weeks of treatment to study the effects of treatment on patterns of cerebral metabolism. We also examined the correlations between changes in regional metabolism and changes in symptom severity. This is the first reported study of such relationships in first episode patients. We found that reductions in temporal metabolism were correlated with alleviation of delusions and hallucinations, while there was a strong trend for reduction in medial frontal metabolism to be correlated with reduction in disorganization symptoms. Correlations between successful treatment (indicated by reduced symptoms) and patterns of neuronal activity, provided a biochemical measurement of symptom improvement.
Fiscal shocks, public debt, and long-term interest rate dynamics
Creators: name: Marattin, Luigi
name: Paesani, Paolo
name: Salotti, Simone
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: SECS-P/01 Economia politica

description: Public finances worldwide have been severely hit by the 2008-2009 Great Recession, stimulating the debate on the consequences of growing fiscal imbalances. Building on Paesani et al. (2006), this paper focuses on the USA, Germany and Italy over the 1983-2009 period and studies the effects of fiscal shocks and government debt accumulation on long-term interest rates, both nationally and across borders. Based on a theoretical framework, the empirical analysis disentangles permanent and transitory components of interest rates dynamics finding that sustained debt accumulation leads, at least temporarily, to higher long-term interest rates. This is particularly true for the Italian case. There is also evidence of significant cross-country linkages, mainly between Italy and the USA.
Etude qualitative sur l'influence du stress au travail sur l'implication organisationnelle : Cas du secteur hospitalier marocain
Creators: name: Khalid MOUBTAHIJ
name: Imad AIT LHASSAN
name: Amal AMKHANTAR
Publisher: name: Zenodo
Year: 2024

description: Cet article met en lumière la relation entre stress au travail et implication des professionnels de santé travaillant dans le milieu hospitalier marocain. L'objectif principal est d'appréhender la complexité de leur activité en se focalisant sur le dilemme entre la détresse et la satisfaction au travail. La problématique de recherche réside dans la réponse à la question suivante : Comment protéger la santé des professionnels de santé fortement engagés dans leur métier malgré les niveaux de stress et d'épuisement professionnel que confrontent chaque jour sur les lieux de travail ? Cette étude explore le point de vue des managers hospitaliers sur le sujet et elle repose sur une étude qualitative. Sept (07) responsables hospitaliers qui représentent les différents niveaux hiérarchiques. Les résultats affirment la relation théoriquement négative entre le stress au travail et l’implication organisationnelle en milieu hospitalier. Finalement, des recommandations sont formulées à l'intention des responsables tout en veillant à la formulation originale du contenu, pour limiter les effets négatifs du stress sur la santé mentale des professionnels et préserver leur degré d’engagement dans leur travail, un engagement qui affecte directement la qualité de soins.
Water Consumption and Long-Run Urban Development: The Case of Milan
Creators: name: Musolesi, Antonio
name: Nosvelli, Mario
name: Musolesi, Antonio
name: Nosvelli, Mario
Publisher: name: Unknown
Year: 2005
Subjects: Resource /Energy Economics and Policy

description: Analyses of long run consumption series are rare in literature. We study the evolution of water consumption in Milan in the twentieth century. The objective is twofold: on one side, the univariate analysis tries both to assess the impact of relevant socio-economic and environmental changes on water consumption in Milan and verify if consumers have deeply rooted consumption habits. On the other side, the multivariate analysis is used to identify the socio-economic factors that are relevant in explaining consumption evolution. Results indicate both that water users have well entrenched consumption habits and that population, climate and economic structure behave more similarly, in Euclidean terms, to water consumption than to other economic and social variables.
Magnetoelectric Control of Domain Walls in a Ferrite Garnet Film
Creators: name: Logginov, A. S.
name: Meshkov, G. A.
name: Nikolaev, V. A.
name: Pyatakov, A. P.
name: Zvezdin, A. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of magnetic domain boundaries displacement induced by electric field is observed in epitaxial ferrite garnet films (on substrates with the (210) crystallographic orientation). The effect is odd with respect to the electric field (the direction of wall displacement changes with the polarity of the voltage) and even with respect to the magnetization in domains. The inhomogeneous magnetoelectric interaction as a possible mechanism of the effect is proposed.
description: 5 pages, 2 figures
Distribution Free Estimation of Spatial Autoregressive Binary Choice Panel Data Models
Creators: name: Arduini, Tiziano
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2016
Subjects: SECS-P/01 Economia politica

description: This paper proposes a semiparametric estimator for spatial autoregressive (SAR) binary choice models in the context of panel data with fixed effects. The estimation procedure is based on the observational equivalence between distribution free models with a conditional median restriction and parametric models (such as Logit/Probit) exhibiting (multiplicative) heteroskedasticity and autocorrelation.
Without imposing any parametric structure on the error terms, we consider the semiparametric nonlinear least squares (NLLS) estimator for this model and analyze its asymptotic properties under spatial near-epoch dependence. The main advantage of our method over the existing estimators is that it consistently estimates choice probabilities. The finite-dimensional estimator is shown to be consistent and root-n asymptotically normal under some reasonable conditions. Finally, a Monte Carlo study indicates that the estimator performs quite well in finite samples.
Field- and pressure-induced phases in Sr$_{4}$Ru$_{3}$O$_{10}$: A spectroscopic investigation
Creators: name: Gupta, Rajeev
name: Kim, M.
name: Barath, H.
name: Cooper, S. L.
name: Cao, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have investigated the magnetic-field- and pressure-induced structural and magnetic phases of the triple-layer ruthenate - Sr$_{4}$Ru$_{3}$O$_{10}$. Magnetic-field-induced changes in the phonon spectra reveal dramatic spin-reorientation transitions and strong magneto-elastic coupling in this material. Additionally, pressure-dependent Raman measurements at different temperatures reveal an anomalous negative Gruneisen-parameter associated with the B$_{1g}$ mode ($\sim$ 380 cm$^{-1}$) at low temperatures (T $
description: 5 pages, 4 figures final version published in PRL 96, 067004 (2006)
A neural network-based methodology to select young stellar object candidates from IR surveys
Creators: name: Cornu, David
name: Montillaud, Julien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observed Young Stellar Objects (YSOs) are used to study star formation and characterize star forming regions. For this purpose, YSO candidate catalogs are compiled from various surveys, especially in the infrared (IR), and simple selection schemes in colour-magnitude diagrams (CMDs) are often used to identify and classify YSOs. We propose a methodology for YSO classification through Machine Learning (ML) using Spitzer IR data. We detail our approach in order to ensure reproducibility and provide an in-depth example on how to efficiently apply ML to an astrophysical classification. We used feedforward Artificial Neural Networks (ANNs) that use the four IRAC bands ($3.6, 4.5, 5.8$ and $8 μm$) and the $24\ μm$ MIPS band from Spitzer to classify point source objects into CI and CII YSO candidates or as contaminants. We found that ANNs can efficiently be applied to YSO classification with a contained number of neurons ($\sim$ 25). Knowledge gathered on one star-forming region has shown to be partly efficient for prediction in new regions. Best generalization capacity was achieved using a combination of several star-forming regions to train the network. Carefully rebalancing the training proportions was necessary to achieve good results. We achieved above 90% and 97% recovery rate for CI and CII YSOs, respectively, with precision above 80% and 90% for our most general result. We took advantage of the ANN great flexibility to define, for each object, an effective membership probability to each output class. Using a threshold in this probability was found to efficiently improve the classification results at a reasonable cost of object exclusion. With this selection, we reached 90% precision on CI YSOs, for more than half of them. Our catalog of YSO candidates in Orion (365 CI, 2381 CII) and NGC 2264 (101 CI, 469 CII) predicted by our final ANN is publicly available at CDS.
Simulating the Impact on the Local Economy of Alternative Management Scenarios for Natural Areas
Creators: name: De Agostini, Paola
name: Lovo, Stefania
name: Pecci, Francesco
name: Perali, Carlo Federico
name: Baggio, Michele
name: De Agostini, Paola
name: Lovo, Stefania
name: Pecci, Francesco
name: Perali, Carlo Federico
name: Baggio, Michele
Publisher: name: Unknown
Year: 2005
Subjects: Resource /Energy Economics and Policy

description: This working paper estimates the impact on the local economy of the High Garda Natural Park of alternative management scenarios for the West Garda Regional Forest. The local economy is specialized in tourist services and strongly linked to the tourist presence and their level of expenditure. We wish to investigate the effects of the participative management strategy, which takes into account users preferences and the non-participative strategy, using the SAM multiplier analysis. The local SAM has been constructed considering three sectors: agriculture, tourism and a third aggregate sector including all the other activities. The resident population has been divided into two categories: residents employed in the tourist sector and the remaining resident population. The SAM analysis shows that the accounting representation of the local economy is meaningful and that the participative program, if chosen by the central regional management, would be the most desirable program also at the local level.
Hawking Radiation as Quantum Tunneling from Noncommutative Schwarzschild Black Hole
Creators: name: Nozari, Kourosh
name: Mehdipour, S. Hamid
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study tunneling process through quantum horizon of a Schwarzschild black hole in noncommutative spacetime. This is done by considering the effect of smearing of the particle mass as a Gaussian profile in flat spacetime. We show that even in this noncommutative setup there will be no correlation between the different modes of radiation which reflects the fact that information doesn't come out continuously during the evaporation process at least at late-time. However, due to spacetime noncommutativity, information might be preserved by a stable black hole remnant.
description: 19 Pages, 4 Figures, revised, new material and references added
Inhomogeneous mean-field approach to collective excitations in disordered interacting bosons
Creators: name: Puschmann, Martin
name: Getelina, João C.
name: Hoyos, José A.
name: Vojta, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We develop an inhomogeneous quantum mean-field approach to the behavior of collective excitations across the superfluid-Mott glass quantum phase transition in two dimensions, complementing recent quantum Monte Carlo simulations [Phys. Rev. Lett. {\bf 125}, 027002 (2020)]. In quadratic (Gaussian) approximation, the Goldstone (phase) and Higgs (amplitude) modes completely decouple. Each is described by a disordered Bogoliubov Hamiltonian which can be solved by an inhomogeneous multi-mode Bogoliubov transformation. We find that the Higgs mode is spatially localized in both phases. The corresponding scalar spectral function shows a broad peak that is noncritical in the sense that its peak frequency does not soften but remains nonzero across the quantum phase transition. In contrast, the lowest-energy Goldstone mode delocalizes in the superfluid phase, leading to a zero-frequency spectral peak. We compare these findings to the results of the quantum Monte Carlo simulations. We also relate them to general results on the localization of bosonic excitations, and we discuss the limits and generality of our approach.
description: 29 pages, 14 figures, final version as published in Localisation 2020 volume of Annals of Physics
Synthesis and physical properties of perovskite Sm$_{1-x}$Sr$_x$NiO$_3$ (x = 0, 0.2) and infinite-layer Sm$_{0.8}$Sr$_{0.2}$NiO$_2$ nickelates
Creators: name: He, Chengping
name: Ming, Xue
name: Li, Qing
name: Zhu, Xiyu
name: Si, Jin
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently, superconductivity at about 9-15K was discovered in Nd$_{1-x}$Sr$_x$NiO$_2$ infinite-layer thin films, which has stimulated enormous interests in related rare-earth nickelates. Usually, the first step to synthesize this 112 phase is to fabricate the RNiO$_3$ phase, however, it was reported that the 113 phase is very difficult to be synthesized successfully due to the formation of unusual Ni$^{3+}$ oxidation state. And the difficulty of preparation is enhanced as the ionic radius of rare-earth element decreases. In this work, we report the synthesis and investigation on multiple physical properties of polycrystalline perovskites Sm$_{1-x}$Sr$_x$NiO$_3$ (x = 0, 0.2) in which the ionic radius of Sm$^{3+}$ is smaller than that of Pr$^{3+}$ and Nd$^{3+}$ in related superconducting thin films. The structural and compositional analyses conducted by X-ray diffraction and energy dispersive X-ray spectrum reveal that the samples mainly contain the perovskite phase of Sm$_{1-x}$Sr$_x$NiO$_3$ with small amount of NiO impurities. Magnetization and resistivity measurements indicate that the parent phase SmNiO$_3$ undergoes a paramagnetic-antiferromagnetic transition at about 224K on a global insulating background. In contrast, the Sr-doped sample Sm$_{0.8}$Sr$_{0.2}$NiO$_3$ shows a metallic behavior from 300K down to about 12K, while below 12K the resistivity exhibits a slight logarithmic increase. Meanwhile, from the magnetization curves, we can see that a possible spin-glass state occurs below 12K in Sm$_{0.8}$Sr$_{0.2}$NiO$_3$. Using a soft chemical reduction method, we also obtain the infinite-layer phase Sm$_{0.8}$Sr$_{0.2}$NiO$_2$ with square NiO$_2$ planes. The compound shows an insulating behavior which can be described by the three-dimensional variable-range-hopping model. And superconductivity is still absent in the polycrystalline Sm$_{0.8}$Sr$_{0.2}$NiO$_2$.
description: 13 pages, 6 figures
Additional file 1 of Diversity oriented Deep Reinforcement Learning for targeted molecule generation
Creators: name: Pereira, Tiago
name: Abbasi, Maryam
name: Ribeiro, Bernardete
name: Arrais, Joel P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 1. The supplementary file contains all the required dependencies to ensure compatibility with the provided code. Furthermore, all the necessary steps for implementing each module of the framework are indicated in detail.
Signatures of glass formation in a fluidized bed of hard spheres
Creators: name: Goldman, Daniel I.
name: Swinney, Harry L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the loss of fluidization and an arrest of macroscopic particle motion. Microscopic motion persists in this state, but the bed can be jammed by application of a small increase in flow rate. Thus a fluidized bed can serve as a test system for studies of glass formation and jamming.
description: 4 pages, 4 figures, submitted to PRL Replacement: modified figures and text
The Recent Evolution and Impact of Tourism in the Mediterranean: The Case of Island Regions, 1990-2002
Creators: name: Manera, Carles
name: Taberner, Jaume Garau
name: Manera, Carles
name: Taberner, Jaume Garau
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: This paper aims to analyse one of the world's top tourist destinations, the Mediterranean, and, more specifically, the evolution and impact of mass tourism on its western islands (Corsica, Sardinia, Sicily, Malta and the Balearic Islands) throughout the final decade of the 20th century. Firstly a general overview of world tourism is given, followed by an analysis of tourism in the Mediterranean. In continuation, an in-depth study is made of the evolution and impact of tourism on the aforementioned islands. Finally, the economic impact of tourism specialisation is examined in these island regions.
Meson-Meson and Meson-Baryon Interactions in Lattice QCD
Creators: name: Doi, Takumi
name: Takahashi, Toru T.
name: Suganuma, Hideo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the meson-meson and meson-baryon interactions in lattice QCD. The simulation is performed on 20^3 * 24 lattice at β=5.7 using Wilson gauge action and Wilson fermion at the quenched level. By adopting one static quark for each hadron as "heavy-light meson" and "heavy-light-light baryon", we define the distance $r$ of two hadrons and extract the inter-hadron potential from the energy difference of the two-particle state and its asymptotic state. We find that both of the meson-meson and meson-baryon potentials are nontrivially weak for the whole range of 0.2 fm <= r <= 0.8 fm. The effect of including/excluding the quark-exchange diagrams is found to be marginal.
description: Talk given at Particles and Nuclei International Conference (PANIC05), Santa Fe, NM, USA, 24-28 Oct. 2005. 3 pages, 2 figures
Charismatische Erneuerung - Herausforderung für die Kirche?
Creators: name: Bittlinger, Arnold
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 29 Nr. 3 (1980): Ökumenische Rundschau, Band 29, Heft 3
A Future for the Dead Sea Basin: Water Culture among Israelis, Palestinians and Jordanians
Creators: name: Lipchin, Clive
name: Lipchin, Clive
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: The Dead Sea basin plays a major role for regional economic development (industry, tourism and agriculture) in the Middle East. This potential is threatened by the steady disappearance of the Dead Sea. Since around 1930 the water level of the Dead Sea has fallen by about 25 m, about half of this alone in the last 20 years. The Dead Sea is a transboundary resource shared by Israel, the Palestinian Authority and Jordan. The Dead Sea is the terminal point of the Jordan River watershed and as such, it serves as a barometer for the health of the overall system. Its rapid decline reflects the present water management strategies of the riparian and upstream countries. This includes the different water cultures of the three countries. Throughout history, the Dead Sea basin has served as a source of refuge and inspiration for followers of Judaism, Christianity and Islam. Today, the religious significance of the Dead Sea is being overshadowed by its rapid disappearance. This may be explained in part by the water cultures of the three countries that influence water policy in the region. Ideology, together with culture and tradition, such as that of Zionism in Israel, has played a central role in water development in the region. In many cases, this has been at the expense of the environment. Elements pertaining to environmental security and water culture and tradition, whereby a sustainably managed environment provides for social, economic as well as environmental benefits are evident with regards the Dead Sea. The decline for example, undermines its potential as a tourist destination, despite the enormous investment in hotel and resort infrastructures in Israel and in Jordan. The decline also raises ethical issues about the exploitation of water resources by present generations at the expense of this natural heritage to future generations. This paper provides an analysis of a European Union funded project whose aims are to synthesize and assess existing physical and socio-economic data and to assess options for a better future for the Dead Sea. It will identify the patterns of water supply and use in the region, and the factors that control these patterns, including those of water culture. The underlying assumption is that solutions for a more sustainable development than today's scenario will not come from simply providing "more water for more development", but from a new land and water management system, indeed ethic, that is sensitive to social, cultural and ecological resources thereby providing security and stability across cultures, economic sectors and nations.
Characterization of a unique gene of opMNPV and analysis of regulatory motifs involved in basal activity and ie2 trans-activation
Creators: name: Shippam, Cynthia Elizabeth
Publisher: name: University of British Columbia
Year: 2009

description: Baculovirus early genes are transcribed by host cell transcription factors and serve to regulate the infectious cycle via a cascade effect, and may also play a significant role in viral host range. Opep-2 is one of two unique early genes in the IE1 gene region of Orgyia pseudotsugata multicapsid nucleopolyhedrovirus (OpMNPV). Opep-2 is transcribed from 1-36 hours post infection as three transcripts, with a single consensus baculovirus early gene initiation motif and three termination sites, corresponding to transcripts of 1.1, 0.98 and 0.88 kb. Opep-2 is regulated by a promoter region that has several recognizable motifs, including a pair of previously unidentified 13 base direct repeats that serve as regulatory motifs, as well as GATA and CACGTG motifs. Transient expression assays in two insect cell lines - Ld652Y and Sf9 - have indicated different minimal promoter requirements for activation by host cell nuclear factors and for trans-activation by the viral transcription factor IE2. This is the first study to investigate the sequence requirements for IE2 trans-activation. No specific sequences are absolutely required for trans-activation by either cell line. Deletion viruses lacking the opep-2 ORF have indicated that opep-2 is not required for infection in tissue culture, and its absence has no effect on virus production or infectivity in either tissue culture or in insects susceptible to the wild type virus. The deletion of opep-2 from the genome has resulted in a change in plaque morphology, and transmission electron microscopy studies have indicated that cells infected with the deletion virus do not lyse as quickly as WT infected cells.
Boosting Share Routing for Multi-task Learning
Creators: name: Chen, Xiaokai
name: Gu, Xiaoguang
name: Fu, Libo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Multi-task learning (MTL) aims to make full use of the knowledge contained in multi-task supervision signals to improve the overall performance. How to make the knowledge of multiple tasks shared appropriately is an open problem for MTL. Most existing deep MTL models are based on parameter sharing. However, suitable sharing mechanism is hard to design as the relationship among tasks is complicated. In this paper, we propose a general framework called Multi-Task Neural Architecture Search (MTNAS) to efficiently find a suitable sharing route for a given MTL problem. MTNAS modularizes the sharing part into multiple layers of sub-networks. It allows sparse connection among these sub-networks and soft sharing based on gating is enabled for a certain route. Benefiting from such setting, each candidate architecture in our search space defines a dynamic sparse sharing route which is more flexible compared with full-sharing in previous approaches. We show that existing typical sharing approaches are sub-graphs in our search space. Extensive experiments on three real-world recommendation datasets demonstrate MTANS achieves consistent improvement compared with single-task models and typical multi-task methods while maintaining high computation efficiency. Furthermore, in-depth experiments demonstrates that MTNAS can learn suitable sparse route to mitigate negative transfer.
Additional file 1 of Six-year trend and risk factors of unsuccessful pulmonary tuberculosis treatment outcomes in Thai Community Hospital
Creators: name: Sakarn Charoensakulchai
name: Chaiyapun Lertpheantum
name: Chanapon Aksornpusitpong
name: Peeranut Trakulsuk
name: Boonsub Sakboonyarat
name: Rangsin, Ram
name: Mathirut Mungthin
name: Piyaraj, Phunlerd
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Operational definitions (TB management, hepatotoxicity, and case definition).
Hodge metrics and positivity of direct images
Creators: name: Mourougane, Christophe
name: Takayama, Shigeharu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32L05, (14F05, 32J27)

description: Building on Fujita-Griffiths method of computing metrics on Hodge bundles, we show that the direct image of an adjoint semi-ample line bundle by a projective submersion has a continuous metric with Griffiths semi-positive curvature. This shows that for every holomorphic semi-ample vector bundle $E$ on a complex manifold, and every positive integer $k$, the vector bundle $S^kE\otimes\det E$ has a continuous metric with Griffiths semi-positive curvature. If $E$ is ample on a projective manifold, the metric can be made smooth and Griffiths positive.
description: revised and expanded version of "A positivity property of ample vector bundles"
INNOVATSION HAMKORLIK ASOSIDA TALABALARNING BOSHQARUV  PEDAGOGIK TAYYORGARLIGINING NAZARIY ASOSLARI
Creators: name: Raximov Aziz Baxriddinovich Buxoro innovatsiyalar universiteti Pedagogika nazariyasi va tarixi yo'nalishi   2 - kurs magistranti
Publisher: name: Zenodo
Year: 2024

description: Ushbu  maqolada  innovatsion hamkorlik asosida talabalarning boshqaruv pedagogik tayyorgarligining nazariy asoslari to‘g‘risida fikr yuritilgan. Hamkorli pedagogikasi orqali ta’lim tizimida  innovatsion, intensiv hamda kreativ fikrlaydigan kadrlar yetishtirishni amalga oshirish yo‘llari ko‘rsatilgan.

Kalit so‘zlar: hamkorlik pedagogikasi, hamkorlik konsepsiyasi, ta’lim sifati, ta’lim sifatini boshqarish, innovatsion, intensiv,  kreativ