cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Three- and two-point spatial correlations of IGM at $z\sim 2$: Cloud based analysis using simulations
Creators: name: Maitra, Soumak
name: Srianand, Raghunathan
name: Gaikwad, Prakash
name: Choudhury, Tirthankar Roy
name: Paranjape, Aseem
name: Petitjean, Patrick
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Ly$α$ forest absorption spectra decomposed into multiple Voigt profile components (clouds) allow us to study clustering of intergalactic medium (IGM) as a function of HI column density ($N_{\rm HI}$). Here, we explore the transverse three-point correlation ($ζ$) of these Ly$α$ clouds using mock triplet spectra obtained from hydrodynamical simulations at $z \sim 2$ on scales of 1-5 $h^{-1}$cMpc. We find $ζ$ to depend strongly on $N_{\rm HI}$ and scale and weakly on angle ($θ$) of the triplet configuration. We show that the "hierarchical ansatz" is applicable for scales $\ge~ 3h^{-1}$cMpc, and obtain a median reduced three-point correlation (Q) in the range 0.2-0.7. We show, $ζ$ is influenced strongly by the thermal and ionization state of the gas. As found in the case of galaxies, the influence of physical parameters on Q is weaker compared to that of $ζ$. We show difference in $ζ$ and Q between different simulations are minimized if we use appropriate $N_{\rm HI}$ cut-offs corresponding to a given baryon over-density ($Δ$) using the measured $N_{\rm HI}~vs~Δ$ relationship obtained from individual simulations. Additionally, we see the effect of pressure broadening on $ζ$ in a model with artificially boosted heating rates. However, for models with realistic thermal and ionization histories the effect of pressure broadening on $ζ$ is weak and sub-dominant compared to other local effects. We find strong redshift evolution shown by $ζ$, mainly originating from the redshift evolution of thermal and ionization state of the IGM. We discuss the observational requirements for the detection of three-point correlation, specifically, in small intervals of configuration parameters and redshift.
description: 26 pages, 23 figures. Submitted to MNRAS
How to Improve Risk Perception Evaluation in Food Safety: A Psychometric Approach
Creators: name: Cembalo, Luigi
name: Cicia, Gianni
name: Verneau, Fabio
name: Cembalo, Luigi
name: Cicia, Gianni
name: Verneau, Fabio
Publisher: name: Unknown
Year: 2009
Subjects: Agribusiness
Agricultural and Food Policy
Farm Management
Food Consumption/Nutrition/Food Safety
Risk and Uncertainty

description: Food consumers often query or ignore the risk assessments of scientists, the food industry and public bodies. This is widely acknowledged. It has been suggested that this ‘expert-lay discrepancy’ is a relatively straightforward upshot of the fact that lay people lack the knowledge and technical understanding of experts. However, much published research on risk in psychology and sociology runs counter to this ‘knowledge deficit’ model (Hansen et al., 2003). In many cases, at least, lay risk assessments are not well explained as the product of ignorance, because they are in fact complex, situational sensitive expressions of a person's value system. There is obviously a pressing need today to understand expert-lay discrepancies in the assessment of food risks. We need to know how consumers perceive and assess risks; why they respond to communication and advice relating to those risks in the way they do; what factors affect their willingness to trust public institutions responsible for regulating the food industry and issuing guidance on food matters; and what determines their handling of specific food hazards. Psychometric and psychological studies of risk perception offer an invaluable corrective to excessive and simplistic reliance on the deficit model (Fife et al., 2000; Hansen et al., 2003). By emphasising the multi-dimensionality of lay risk perception, they have improved the understanding of expert-lay discrepancy. More generally, the demonstration that risks and benefits are not perceived independently of each other is a crucial finding of psychological research, and we now know that risk-benefit analyses that treat risk and benefits as independent factors should be handled with caution by those aiming to interpret or influence popular opinion. Our paper is an attempt to analyse consumers’ behaviour when facing a potential risky action such as consuming GM food. The hypothesis tested states that consumers take into account both costs (accident) and benefits (rewards) of uncertain outcomes and then minimize risk instead of trying to totally avoid it. A sample of 338 students, interviewed in year 2000 (188) and in year 2008 (150), enrolled in different Italian colleges was directly interviewed on an hypothetical genetically modified tomato market. A mixture distributions was used first for inferring on what variables influence the decision to take part on the "new market" proposed and, second, to estimate the Willingness To Pay (WTP) distribution for those willing to buy the GM product proposed.
title: Современная осетинская проза в контексте основных тенденций развития литературы
Creators: name: ELS IPR BOOKS
Publisher: name: Северо-Осетинский государственный педагогический институт
Year: 2019

description: В монографии рассматривается современная осетинская проза в контексте основных тенденций развития литературы. Особое внимание уделяется проблематике, авторской концепции, анализу изобразительно-выразительных средств произведений Г. Тедеева, Г. Гудиева, А. Гучмазты, А. Дзантиева, Т. Тадтаева, анализируемых через призму интертекстуальных связей с русской и зарубежной литературой. В контексте постмодернистской эстетики исследуется проза А. Черчесова, Д. Бугулова, И. Хугаева, А. Габуева. Для специалистов-филологов, аспирантов, студентов, а также для широкого круга читателей.
How Cognitive Maps May Help Understand Consumer Attitude?
Creators: name: Ricci, Sophie
name: Fourcadet, Olivier
name: Ricci, Sophie
name: Fourcadet, Olivier
Publisher: name: Unknown
Year: 2009
Subjects: Agribusiness
Agricultural and Food Policy
Farm Management
Food Consumption/Nutrition/Food Safety
Risk and Uncertainty

description: At the beginning of this research, we had in mind the low consumption level of fruits and vegetables among French young people despite several months of intense exposure to health messages, such as “eat 5 portions of fruits and vegetables every day”. Studies show that French young people have memorized the messages, but did not alter their eating habits. Our major hypothesis was that some “mental blocks” might be curbing fruit consumption, and removing them might increase consumption. Similarly we thought that some “mental levers” if well activated could increase fruit consumption. Identifying “mental blocks” and “mental levers” related to fruits became our research goal. To achieve this objective, building the cognitive map of the fruit universe appears an appropriate method. In the process of constructing the map we discovered that we could also assess, although imperfectly, how people have formed their mental representation over the courses of the years.
Assisted Teleoperation in Changing Environments with a Mixture of Virtual Guides
Creators: name: Ewerton, Marco
name: Arenz, Oleg
name: Peters, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Haptic guidance is a powerful technique to combine the strengths of humans and autonomous systems for teleoperation. The autonomous system can provide haptic cues to enable the operator to perform precise movements; the operator can interfere with the plan of the autonomous system leveraging his/her superior cognitive capabilities. However, providing haptic cues such that the individual strengths are not impaired is challenging because low forces provide little guidance, whereas strong forces can hinder the operator in realizing his/her plan. Based on variational inference, we learn a Gaussian mixture model (GMM) over trajectories to accomplish a given task. The learned GMM is used to construct a potential field which determines the haptic cues. The potential field smoothly changes during teleoperation based on our updated belief over the plans and their respective phases. Furthermore, new plans are learned online when the operator does not follow any of the proposed plans, or after changes in the environment. User studies confirm that our framework helps users perform teleoperation tasks more accurately than without haptic cues and, in some cases, faster. Moreover, we demonstrate the use of our framework to help a subject teleoperate a 7 DoF manipulator in a pick-and-place task.
description: 19 pages, 9 figures
Modelling of the Demand Relations within the Commodity Chain: Application on the Wheat Commodity Chain in the Czech Republic
Creators: name: Blazkova, Ivana
name: Blazkova, Ivana
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Risk and Uncertainty
subject: Commodity chain
subject: vertical demand system
subject: demand interconnection
subject: primary demand
subject: secondary demand

description: The paper is focused on formulation of demand relations in the commodity chain. Created model respects interdependence and interconnection of particular stages within the food commodity chain – it takes into account the fact that secondary demand function is formed not only by particular prices but also by level of demand on vertical previous market. The functions of primary consumer demand for final products and the functions of derived demands at the level of retail, processing and agricultural production are modeled. The wheat commodity chain in the Czech Republic is chosen for the application. Statistical verification of the model and derivation of standard characteristics of market subjects’ behaviour (elasticities) are made. The model shows that demand of consequential vertical stage significantly takes a share in the size of particular secondary demand, consumer demand for basic bakery products is price and income inelastic and there are weak cross price elasticities among consumption of basic bakery products.
Use of Simulation Models to Study the Dynamic of Recall of Non-Conform Perishable Produce through the Supply Chain
Creators: name: Busato, Patrizia
name: Berruto, Remigio
name: Busato, Patrizia
name: Berruto, Remigio
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Research and Development/Tech Change/Emerging Technologies
subject: Risk and Uncertainty
subject: Traceability
subject: Logistics
subject: Dynamic simulation

description: The traceability allows, for each product, to sketch the manufacturing process through a system documentary, enabling to identify the operational structures involved, the products and the lots, to define the flows of production, packaging and distribution. There are researches that investigate the traceability within the firm, but little work has been carried out on the investigation of the traceability system over the whole supply chain. The supply-chain of fresh produce is constituted of many links: producer/grower, warehouse, packing centre, distribution centre, retailers and finally the consumer. Each of these is a system itself that interacts with the other components of the supply-chain. The non-conformity could occurs in each of these links. Because of processing plant requirement, storage requirements, and because of savings in the traceability process, often small size lots are merged together to form a large size lot at some points in the supply-chain. Larger lot size could imply higher risk for the consumers in case of recall of the produce and much higher recall time and cost for the supply-chain. When a non-conformity occurs, the time to recall the produce depends on many factors: lot size, lead time for information spreading from link to link, product transit time among links, product storage procedures and times, and the point in the supply chain where the problem occurred. To study with a system approach different scenarios for the recall procedure the authors realized a discrete event dynamic simulation model using Extendsim®. In the paper is described the model framework and one practical example.
Quantum many-body dynamics in a Lagrangian frame: I. Equations of motion and conservation laws
Creators: name: Tokatly, I. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We formulate equations of motion and conservation laws for a quantum many-body system in a co-moving Lagrangian reference frame. It is shown that generalized inertia forces in the co-moving frame are described by Green's deformation tensor $g_{μν}(\bmξ,t)$ and a skew-symmetric vorticity tensor $\widetilde{F}_{μν}(\bmξ,t)$, where $\bmξ$ in the Lagrangian coordinate. Equations of motion are equivalent to those for a quantum many-body system in a space with time-dependent metric $g_{μν}(\bmξ,t)$ in the presence of an effective magnetic field $\widetilde{F}_{μν}(\bmξ,t)$. To illustrate the general formalism we apply it to the proof of the harmonic potential theorem. As another example of application we consider a fast long wavelength dynamics of a Fermi system in the dynamic Hartree approximation. In this case the kinetic equation in the Lagrangian frame can be solved explicitly. This allows us to formulate the description of a Fermi gas in terms of an effective nonlinear elasticity theory. We also discuss a relation of our results to time-dependent density functional theory.
description: 14 pages, RevTeX4. Final version, typos in Eqs.(77), (A1) and (A2), which are present in the published version, corrected
Information Modelling for Quality and Sustainability
Creators: name: Lehmann, Richard J.
name: Reiche, Robert
name: Fritz, Melanie
name: Schiefer, Gerhard
name: Lehmann, Richard J.
name: Reiche, Robert
name: Fritz, Melanie
name: Schiefer, Gerhard
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Research and Development/Tech Change/Emerging Technologies
subject: Risk and Uncertainty
subject: Supply chain management
subject: Model-based decision support systems (DSS)
subject: Process integration
subject: Unified Modeling Language (UML)
subject: Discrete-event simulation

description: The food sector is confronted with a growing number of public and private requirements, which call for provision of information about the quality and sustainability of food, such as, e.g., its origin, safety and production conditions. This forces enterprises to innovate towards demand driven and knowledge-based production of food. As a consequence, intra- and inter-enterprise production and information processes have to be integrated and suitable information systems need to be developed to provide information for related decision processes. The present paper introduces a generalized modelling framework for model-based decision support systems (DSS) involving production and information processes across whole supply networks. The different phases of a decision process are supported by the integration of functional, behavioural and informational network models using the Unified Modeling Language (UML) and discrete-event simulation.
2D Detectors for Particle Physics and for Imaging Applications
Creators: name: Krueger, Hans
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The demands on detectors for particle detection as well as for medical and astronomical X-ray imaging are continuously pushing the development of novel pixel detectors. The state of the art in pixel detector technology to date are hybrid pixel detectors in which sensor and read-out integrated circuits are processed on different substrates and connected via high density interconnect structures. While these detectors are technologically mastered such that large scale particle detectors can be and are being built, the demands for improved performance for the next generation particle detectors ask for the development of monolithic or semi-monolithic approaches. Given the fact that the demands for medical imaging are different in some key aspects, developments for these applications, which started as particle physics spin-off, are becomming rather independent. New approaches are leading to novel signal processing concepts and interconnect technologies to satisfy the need for very high dynamic range and large area detectors. The present state in hybrid and (semi-)monolithic pixel detector development and their different approaches for particle physics and imaging application is reviewed.
Drivers and Barriers to Innovation in the Food Processing Industry Continued. A Comparison of the Netherlands and the Shanghai Region in China
Creators: name: Fortuin, Frances T.J.M.
name: Omta, S.W.F. (Onno)
name: Fortuin, Frances T.J.M.
name: Omta, S.W.F. (Onno)
Publisher: name: Unknown
Year: 2009
Subjects: Agribusiness
Agricultural and Food Policy
Farm Management
Food Consumption/Nutrition/Food Safety
Research and Development/Tech Change/Emerging Technologies
Risk and Uncertainty

description: This paper aims at comparing the innovative potential of leading food processing companies in emerging and developed economies. We asked ourselves how the clearly differing economic and social conditions of two areas that are only comparable in terms of their number of inhabitants (about 16 to 18 million), namely a fast growing emerging economy (the Shanghai area in China) and a developed economy (The Netherlands) affect competitiveness and innovation of their leading prospector companies. Our study population consisted of 31 respondents (CEOs, CTOs and R&D directors) from 18 leading prospector companies in the food processing industry : nine in the Netherlands and nine in Shanghai. We focus on how the combination of external forces exerted by actors in the network (competitors, suppliers and buyers) and internal forces (especially innovation capabilities) affect competitiveness and innovation performance of these companies. A 52-item research questionnaire, based on industrial organization theory and the Resource-Based-View, was designed for this study, including quantitative questions on innovative input and output and business performance, and qualitative questions about competitive pressure and the quality of the innovation process. Interesting findings are that both innovative as well as business performance are predominantly related to the companies’ internal (innovation) capabilities. As expected, clear differences between Chinese and Dutch companies were found regarding the external forces as well as in the internal capabilities they deploy to survive The pressure from the external environment, especially the power of buyers and the threat of new entrants is clearly felt more strongly by the Dutch companies than by their Chinese counterparts. The Chinese companies report to significantly use more KPI’s to monitor the R&D process, whereas the Dutch companies are significantly more active in stimulating an innovative culture. Interestingly, however, neither of these differences leads to significant differences in business or innovation performance between the two groups in our study. The answer to the question whether agri-food companies in developed economies still have a competitive edge compared to those in emerging economies, such as China that emerges from the data collected so far points in the direction of the disappearance of the traditional advantage of the companies from developed economies: no significant differences could be found neither in innovation performance, nor in business performance among the companies from the Netherlands and the Shanghai region in China.
A sparse code increases the speed and efficiency of neuro-dynamic programming for optimal control tasks with correlated inputs
Creators: name: Loxley, Peter N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Sparse codes in neuroscience have been suggested to offer certain computational advantages over other neural representations of sensory data. To explore this viewpoint, a sparse code is used to represent natural images in an optimal control task solved with neuro-dynamic programming, and its computational properties are investigated. The central finding is that when feature inputs to a linear network are correlated, an over-complete sparse code increases the memory capacity of the network in an efficient manner beyond that possible for any complete code with the same-sized input, and also increases the speed of learning the network weights. A complete sparse code is found to maximise the memory capacity of a linear network by decorrelating its feature inputs to transform the design matrix of the least-squares problem to one of full rank. It also conditions the Hessian matrix of the least-squares problem, thereby increasing the rate of convergence to the optimal network weights. Other types of decorrelating codes would also achieve this. However, an over-complete sparse code is found to be approximately decorrelated, extracting a larger number of approximately decorrelated features from the same-sized input, allowing it to efficiently increase memory capacity beyond that possible for any complete code: a 2.25 times over-complete sparse code is shown to at least double memory capacity compared with a complete sparse code using the same input. This is used in sequential learning to store a potentially large number of optimal control tasks in the network, while catastrophic forgetting is avoided using a partitioned representation, yielding a cost-to-go function approximator that generalizes over the states in each partition. Sparse code advantages over dense codes and local codes are also discussed.
Control of spin coherence in $n$-type GaAs quantum wells using strain
Creators: name: Jiang, L.
name: Wu, M. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We show that the bulk-inversion-asymmetry-type strain-induced spin-orbit coupling can be used to effectively modify the Dresselhaus spin splitting in (001) GaAs quantum wells with small well width and the resulting spin lifetime can be increased by two orders of magnitude to nanoseconds under right conditions. The efficiency of this strain manipulation of the spin dephasing time under different conditions such as temperature, electric field and electron density is investigated in detail.
description: 4 pages, 5 figures in eps format
Size and shape of tracked Brownian bridges
Creators: name: Alsolami, Abdulrahman
name: Burridge, James
name: Gnacik, Michal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 76F55, 60K35, 60J65, 60J70

description: We investigate the typical sizes and shapes of sets of points obtained by irregularly tracking two-dimensional Brownian bridges. The tracking process consists of observing the path location at the arrival times of a non-homogeneous Poisson process on a finite time interval. The time varying intensity of this observation process is the tracking strategy. By analysing the gyration tensor of tracked points we prove two theorems which relate the tracking strategy to the average gyration radius, and to the asphericity -- a measure of how non-spherical the point set is. The act of tracking may be interpreted either as a process of observation, or as process of depositing time decaying "evidence" such as scent, environmental disturbance, or disease particles. We present examples of different strategies, and explore by simulation the effects of varying the total number of tracking points.
description: 12 pages of the main article followed by the supplementary material
Trends in family labour, hired labour and contract work on French and Swiss crop farms: The role of agricultural policies
Creators: name: Dupraz, Pierre
name: Latruffe, Laure
name: Mann, Stefan
name: Dupraz, Pierre
name: Latruffe, Laure
name: Mann, Stefan
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: farm labour
subject: hired labour
subject: contract work
subject: policies

description: The objective of this article is to analyse the trends in on-farm labour use, including own family labour, hired labour and contract work, and to assess the factors driving their evolution in France and in Switzerland during 1990-2007. A particular attention is given to agricultural policies, namely the level and type of support. Results indicate that crop area payments discourage the different labour demands in both countries, while environment and investment payments favour contract and hired labour in France. Contract labour and family labour are substitute and hired labour and family labour are complement in France.
Reinforcement sensitivity and alcohol use : the role of depression, hopelessness, anxiety sensitivity and trait anxiety
Creators: name: Maclean, A. Michael
Publisher: name: University of British Columbia
Year: 2009

description: The current research investigated the role of depression, hopelessness, anxiety sensitivity, and trait anxiety in alcohol use and problems, using hierarchical regression and structural equation modelling (SEM). Using adolescent sample in Study 1, coping drinking motives mediated the relations of both depression and hopelessness with alcohol problems, whereas conformity motives mediated the relationship between anxiety sensitivity and alcohol problems. Trait anxiety did not significantly contribute to the prediction of alcohol use once other predictors were accounted for. The structural model was cross-validated on a second group of adolescents. Using a young adult sample, Study 2 further investigated distinct motivational pathways to alcohol use, distinguishing between anxiety-related and depression-related drinking motives. Depressive symptomatology had an indirect impact on alcohol dependence through depression drinking motives, whereas trait anxiety had an indirect impact on alcohol dependence through anxiety motives and in turn alcohol frequency. Depression is hypothesized to be characterized by an underactive Behavioural Activation System (BAS; i.e., reward-responsiveness) and an overactive Behavioural Inhibition System (BIS; i.e., punishment-susceptibility), whereas anxiety is said to be characterized by an overactive BIS only. Self-report BIS/BAS scales and a reinforcement contingency paradigm - Card Arranging Reward Responsivity Objective Test (CARROT) - were used to examine the extent to which reinforcement sensitivity was able to account for relations among personality/symptom variables and alcohol use. A sip of alcohol was used to examine whether cues for alcohol could increase reward-responsiveness and diminish punishment-susceptibility. Generally, findings confirmed hypotheses concerning BAS and BIS activity. However, depressive symptomatology was not characterized by low BAS activity using self-report, and neither hopelessness nor depressive symptomatology exhibited low BAS on the CARROT. Anxiety sensitivity was characterized by high BIS with self-report, but not the CARROT. Individuals scoring high on depressive symptomatology, hopelessness, and trait anxiety all exhibited high self-reported BIS activity and diminished punishment-susceptibility on the CARROT after presentation of alcohol cues. The current research provides preliminarily evidence for depression and anxiety playing independent roles in motivation for alcohol use, with both reflecting a desire to diminish BIS activity (i.e., negative affect). The current as well as past findings are integrated into a model of depression and anxiety-related alcohol use.
title: Учебно-методическое пособие по изучению зарубежной детской литературы
Creators: name: ELS IPR BOOKS
Publisher: name: Северо-Осетинский государственный педагогический институт
Year: 2019

description: Данное пособие знакомит студентов с зарубежной детской литературой Великобритании и США. Становление и развитие этого рода литературы рассматривается на примерах творчества наиболее известных авторов. Адресовано студентам-бакалаврам, обучающимся по направлениям подготовки 44.03.01 «Педагогическое образование» и 44.03.05 «Педагогическое образование» (с двумя профилями подготовки).
Giant Pulses from PSR B1937+21 with widths <= 15 nanoseconds and T_b >= 5 x 10^39 K, the Highest Brightness Temperature Observed in the Universe
Creators: name: Soglasnov, V. A.
name: Popov, M. V.
name: Bartel, N.
name: Cannon, W.
name: Novikov, A. Yu.
name: Kondratiev, V. I.
name: Altunin, V. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Giant radio pulses of the millisecond pulsar B1937+21 were recorded with the S2 VLBI system at 1.65 GHz with NASA/JPL's 70-m radio telescope at Tidbinbilla, Australia. These pulses have been observed as strong as 65000 Jy with widths <= 15 ns, corresponding to a brightness temperature T_b >= 5 x 10^39 K, the highest observed in the universe. The vast majority of these pulses occur in a 5.8 mcs and 8.2 mcs window at the very trailing edges of the regular main pulse and interpulse profiles, respectively. Giant pulses occur in general with a single spike. Only in one case out of 309 was the structure clearly more complex. The cumulative distribution is fit by a power law with index -1.40 +/- 0.01 with a low-energy but no high-energy cutoff. We estimate that giant pulses occur frequently but are only rarely detected. When corrected for the directivity factor, 25 giant pulses are estimated to be generated in one neutron star revolution alone. The intensities of the giant pulses of the main pulses and interpulses are not correlated with each other nor with the intensities or energies of the main pulses and interpulses themselves. Their radiation energy density can exceed 300 times the plasma energy density at the surface of the neutron star and can even exceed the magnetic field energy density at that surface. We therefore do not think that the generation of giant pulses is linked to the plasma mechanisms in the magnetosphere. Instead we suggest that it is directly related to discharges in the polar cap region of the pulsar.
description: 14 pages, 13 figures, to be published in ApJ, November 2004, v. 616, also was presented in Russian National Astronomical Conference VAK-2004, "Horizons of the Universe" held in Moscow State University, Sternberg Astronomical Institute, June 3-10, 2004, page 197
A dynamic dual model under state-contingent production uncertainty
Creators: name: Serra, Teresa
name: Stefanou, Spiro E.
name: Oude Lansink, Alfons G.J.M.
name: Serra, Teresa
name: Stefanou, Spiro E.
name: Oude Lansink, Alfons G.J.M.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: risk
subject: state-contingent
subject: dynamic model
subject: investment decisions

description: In this paper we assess how production costs and capital accumulation patterns in agriculture have evolved over time, by paying special attention to the influence of risk. A dynamic state-contingent cost minimization approach is applied to assess production decisions in US agriculture over the last century. Results suggest the relevance of allowing for the stochastic nature of the production function which permits to capture both the differences in the costs of producing under different states of nature, the differences in the evolution of these costs over time, as well as the differential impacts of different states of nature on investment decisions.
Fomes Pecatti and Synderesis in saint Thomas Aquinas
Creators: name: Morandin-Ahuerma, Fabio
Publisher: name: figshare
Year: 2020
Subjects: subject: 220305 Ethical Theory
subject: FOS: Philosophy, ethics and religion

description: This paper addresses the problem of evil from the perspective of St. Thomas Aquinas. It argues that, for Aquinas, the nature of moral evil is in the individual who, due to a disordered reason, departs from the pursuit of the good that is inherent to being. Synderesis is the only indissoluble bridge that man has with natural law and even with the eternal. Will converted into noluntas guides man intrinsically to evil acts, but synderesis, as a power with a natural habit, is the best guide for the contingent decision-making under the rubric of the first practical principles from the transcendent.
Rozansky-Witten geometry of Coulomb branches and logarithmic knot invariants
Creators: name: Gukov, Sergei
name: Hsin, Po-Shen
name: Nakajima, Hiraku
name: Park, Sunghyuk
name: Pei, Du
name: Sopenko, Nikita
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: By studying Rozansky-Witten theory with non-compact target spaces we find new connections with knot invariants whose physical interpretation was not known. This opens up several new avenues, which include a new formulation of $q$-series invariants of 3-manifolds in terms of affine Grassmannians and a generalization of Akutsu-Deguchi-Ohtsuki knot invariants.
description: 33 pages, 1 figure, 7 tables
Innovation Behaviour At Farm Level – Selection And Identification
Creators: name: Sauer, Johannes
name: Zilberman, David
name: Sauer, Johannes
name: Zilberman, David
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: Technology Adoption
subject: Mixed-Effects Regression
subject: Risk

description: Using a squential logit model and a mixed-effects logistic regression approach this empirical study investigates factors for the adoption of automatic milking technology (AMS) at the farm level accounting for problems of sequential sample selection and behaviour identification. The results suggest the importance of the farmer’s risk perception, significant effects of peer-group behaviour, and a positive impact of previous innovation experiences.
Thick metric spaces, relative hyperbolicity, and quasi-isometric rigidity
Creators: name: Behrstock, Jason
name: Drutu, Cornelia
name: Mosher, Lee
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F69, 20F65, 20F28, 20F36

description: We study the geometry of nonrelatively hyperbolic groups. Generalizing a result of Schwartz, any quasi-isometric image of a non-relatively hyperbolic space in a relatively hyperbolic space is contained in a bounded neighborhood of a single peripheral subgroup. This implies that a group being relatively hyperbolic with nonrelatively hyperbolic peripheral subgroups is a quasi-isometry invariant. As an application, Artin groups are relatively hyperbolic if and only if freely decomposable. We also introduce a new quasi-isometry invariant of metric spaces called metrically thick, which is sufficient for a metric space to be nonhyperbolic relative to any nontrivial collection of subsets. Thick finitely generated groups include: mapping class groups of most surfaces; outer automorphism groups of most free groups; certain Artin groups; and others. Nonuniform lattices in higher rank semisimple Lie groups are thick and hence nonrelatively hyperbolic, in contrast with rank one which provided the motivating examples of relatively hyperbolic groups. Mapping class groups are the first examples of nonrelatively hyperbolic groups having cut points in any asymptotic cone, resolving several questions of Drutu and Sapir about the structure of relatively hyperbolic groups. Outside of group theory, Teichmuller spaces for surfaces of sufficiently large complexity are thick with respect to the Weil-Peterson metric, in contrast with Brock--Farb's hyperbolicity result in low complexity.
description: To appear in Mathematische Annalen
CAP effects on labour use in agriculture: Evidence from alternative dynamic panel data models
Creators: name: Petrick, Martin
name: Zier, Patrick
name: Petrick, Martin
name: Zier, Patrick
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: Agricultural employment
subject: Dynamic panel data models
subject: Common Agricultural Policy
subject: East Germany

description: Our aim is to investigate whether the direct payments and rural development measures of the EU’s Common Agricultural Policy (CAP) do make jobs in agriculture safer. We work with a dynamic labour demand equation that is augmented by the full set of policy instruments of the CAP. It is estimated on a unique regional panel dataset of three East German states for the period 1999-2006. We present results for three consistent estimators which differ in how they eliminate the fixed effects and how they instrument the lagged dependent variable, including estimators due to Arellano and Bond, Blundell and Bond, and a corrected least-squares dummy variable estimator due to Kiviet and Bruno. Our results suggest that there were few desirable effects on job maintenance or job creation in agriculture. While there is some indication that investment subsidies have halted labour shedding on farms, the introduction of the fully decoupled Single Farm Payment has likely contributed to significant job losses.
Explaining the international community’s insistence on real property restitution in Bosnia-Herzegovina and Croatia, 1995-2003 : exploring normative foundations
Creators: name: Anderson, Miriam J.
Publisher: name: University of British Columbia
Year: 2009

description: The existence of post-conflict real property restitution regimes for refugees and displaced persons in Bosnia-Herzegovina (BiH) and Croatia marks a dramatic shift from the largely unredressed real property deprivations which occurred during the first half of the twentieth century. Through a comparative analysis of the international community's policy on conflict-related dispossession in Europe and North America from 1913-1945 and its policy on dispossession resulting from ethnic cleansing in the former Yugoslavia in the 1990s, I posit that contrasting norms lie at the heart of the different practices in these two periods. The massive property dispossessions of the first half of the twentieth century occurred as a result of territorial conquest, discriminatory confiscation, wartime seizure of enemy property, and mass population transfers. These dispossessions and their consolidation were underpinned by ethnic nationalism, the malleability of borders, a state-centric international legal system, the concept of collective responsibility, and weak international protection for property rights. Conversely, calls for restitution in BiH and Croatia are premised on civic nationalism, territorial integrity, the legal standing of the individual in international law, a belief in individual responsibility, and the increasing inviolability of property rights in international law. To explain these normative changes and their apparent influence on the establishment of restitution regimes in BiH and Croatia, I employ realist, rationalist, bureaucratic organization, and constructivist theoretical models. The former three fail to account for the international community's insistence on and commitment to return and property restitution. Ruling out the explanatory power of these three theories, I conclude that a constructivist paradigm provides the most complete and accurate analysis. Within the framework of constructivism," the five normative changes identified are plausible causal factors in the establishment of restitution regimes. Through this paradigm, these norms coalesced to provide constraints within which a peace agreement had to fall. As human rights norms, predominantly, they are both constitutive and regulative for states which identify themselves as liberal democracies. The primary architects of peace were the US and the EC/EU. Their intersubjectively understood identity in international society as liberal democracies necessitated consideration, if not adherence, to these norms.
title: Формирование коммуникативной компетентности обучающихся в условиях полилингвальной модели поликультурного образования
Creators: name: ELS IPR BOOKS
Publisher: name: Северо-Осетинский государственный педагогический институт
Year: 2018

description: В коллективной монографии рассматриваются проблемы формирования коммуникативной компетентности обучающихся на различных уровнях образовательной системы как основы трансляции национальной культуры и обеспечения открытости в другие культуры народов России. Материалы монографии представляют собой результат обобщения практического опыта авторов по поиску путей реализации полилингвальной модели поликультурного образования в рамках формирующейся научной школы института. Научное издание рекомендовано студентам, магистрантам, аспирантам, преподавателям вузов и специалистам, осуществляющим педагогическую деятельность в условиях поликультурного образования.
Morandin Ahuerma 201604 Fomes.pdf
Creators: name: Morandin-Ahuerma, Fabio
Publisher: name: figshare
Year: 2020
Subjects: subject: 220305 Ethical Theory
subject: FOS: Philosophy, ethics and religion

description: This paper addresses the problem of evil from the perspective of St. Thomas Aquinas. It argues that, for Aquinas, the nature of moral evil is in the individual who, due to a disordered reason, departs from the pursuit of the good that is inherent to being. Synderesis is the only indissoluble bridge that man has with natural law and even with the eternal. Will converted into noluntas guides man intrinsically to evil acts, but synderesis, as a power with a natural habit, is the best guide for the contingent decision-making under the rubric of the first practical principles from the transcendent.
The dynamical structure of isotropic spherical galaxies with a central black hole
Creators: name: Baes, Maarten
name: Dejonghe, Herwig
name: Buyle, Pieter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the kinematical structure of a two-parameter family of isotropic models with a central black hole. The family contains the slope of the central density cusp and the relative black hole mass as parameters. Most of the basic kinematical quantities of these models can be expressed analytically. This family contains three distinct models where also the distribution function, differential energy distribution and spatial LOSVDs can be expressed completely analytically. Each of these models show a drastically different behaviour of the distribution function. Although the effect of a black hole on the distribution function is very strong, in particular for models with a shallow density cusp, the differential energy distribution is only marginally affected. We discuss in detail the effects of a central black hole on the LOSVDs. The projected velocity dispersion increases with black hole mass at small projected radii, but the effect of a black hole on the shape of the LOSVDs (characterized by the h4 parameter) is less straightforward to interpret. Too much reliance on the wings of the LOSVDs and the value of the h4 parameter to determine black hole masses might hence be dangerous.
description: 12 pages, 3 figures, accepted for publication in A&A
Modelling the impact of EAFRD policies on rural development and structural change
Creators: name: Schmid, Julia Christiane
name: Hager, Astrid
name: Jechlitschka, Kurt
name: Kirschke, Dieter
name: Schmid, Julia Christiane
name: Hager, Astrid
name: Jechlitschka, Kurt
name: Kirschke, Dieter
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: rural development
subject: interactive programming
subject: EAFRD
subject: multi-level cofinancing
subject: Saxony-Anhalt

description: Policies for rural areas have become an important but complex policy field in the European Union`s Common Agricultural Policy. In this paper we present a programming approach to analyse the EAFRD budget allocation in Saxony-Anhalt. The approach has been interactively developed with representatives from our partner Ministry. The model is used to analyse and discuss optimisation potentials and the effects of reduced budget availabilities facing Saxony- Anhalt. The results obtained reveal a rather high optimisation potential and reflect the importance of the co-financing modalities within the EAFRD and the GAK context. Budget cuts would severely affect the allocation of funds and the financing mode.
Theoretical Approaches to Neutral and Charged Polymer Brushes
Creators: name: Naji, Ali
name: Seidel, Christian
name: Netz, Roland R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Neutral or charged polymers that are densely end-grafted to surfaces form brush-like structures and are highly stretched under good-solvent conditions. We discuss and compare relevant results from scaling models, self-consistent-field methods and MD simulation techniques and concentrate on the conceptual simple case of planar substrates. For neutral polymers the main quantity of interest is the brush height and the polymer density profile, which can be well predicted from self-consistent calculations and simulations. Charged polymers (polyelectrolytes) are of practical importance since they are soluble in water. Counterion degrees of freedom determine the brush behavior in a decisive way and lead to a strong and non-linear swelling of the brush.
description: 36 pages, 13 figures, Advances in Polymer Science (2005)-in press