cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Representative Farms Economic Outlook for the December 2003 FAPRI/AFPC Baseline
Creators: name: Richardson, James W.
name: Outlaw, Joe L.
name: Anderson, David P.
name: Sartwelle, James D.
name: Feldman, Paul A.
name: Schumann, Keith D.
name: Klose, Steven L.
name: Schwart, Robert B.
name: Womack, Abner W.
name: Richardson, James W.
name: Outlaw, Joe L.
name: Anderson, David P.
name: Sartwelle, James D.
name: Feldman, Paul A.
name: Schumann, Keith D.
name: Klose, Steven L.
name: Schwart, Robert B.
name: Womack, Abner W.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness
Agricultural and Food Policy
Crop Production/Industries

description: The farm level economic impacts of projected long term prices under the Federal Agriculture Improvement and Reform Act of 1996 (FAIR) on representative crop and livestock operations are projected in this report. For this report the FAIR Act will be referred to as the 1996 Farm Bill. The analysis was conducted over the 2000-2006 planning horizon using FLIPSIM, AFPC’s whole farm simulation model. Data to simulate farming operations in the nation’s major production regions came from two sources: - Producer panel cooperation to develop economic information to describe and simulate representative crop, livestock, and dairy farms. - Projected prices, policy variables, and input inflation rates from the Food and Agricultural Policy Research Institute (FAPRI) December 2001 Baseline. The primary objective of the analysis is to determine the farms’ economic viability by region and commodity throughout the life of the 1996 Farm Bill and beyond.
title: Distributed multivariate regression via functional geometric monitoring
title: Κατανεμημένη Πολυπαραγοντική Παλινδρόμιση μέσω της Γεωμετρικής Παρακολούθησης
Creators: name: Σεισακη Ευτυχια
Publisher: name: Technical University of Crete
Year: 2021

description:   Multivariate linear regression is an important and massively used technique for
modeling and predicting data behavior in many fields. In scenarios where the data evolves over time, it is essential to monitor the model in order to identify possible changes. This becomes more challenging, when the data is distributed at a number of different nodes and the regression model must be recomputed to avoid inaccuracy. In such dynamic settings, data centralization and periodic model recomputation can be wasteful. Therefore, the goal is to develop a technique which conserves a precise approximation of the model over the union of all nodes’ data in a communicationefficient fashion.
  We propose a monitoring algorithm for multivariate regression models of distributed data streams, based on the basic notions of Functional Geometric Monitoring (FGM), which guarantees a bounded model error and demands communication only when the estimated model has fairly departed from the current global. Our experimental results clearly demonstrate a reduction in communication cost while maintaining the desired model accuracy, compared to similar existing models.
description: Η Πολυπαραγοντική Γραμμική Παλινδρόμηση είναι μια σημαντική και καθολικά χρησιμοποιούμενη τεχνική που διαμορφώνει και προβλέπει τη συμπεριφορά δεδομένων σε πολλά πεδία. Σε σενάρια όπου τα δεδομένα εξελίσσονται με την πάροδο του χρόνου, είναι απαραίτητο να παρακολουθείται το μοντέλο, προκειμένου να εντοπιστούν πιθανές αλλαγές. Αυτή η κατάσταση γίνεται ακόμα  πιο απαιτητική, όταν τα δεδομένα κατανέμονται σε ένα πλήθος από κόμβους και το μοντέλο παλινδρόμησης πρέπει να υπολογιστεί εκ νέου για να αποφευχθεί η ανακρίβεια. Η κεντρικοποίηση δυναμικών δεδομένων καθώς και ο περιοδικός επανυπολογισμός του μοντέλου μπορεί να αποδειχθεί ασύμφορος. Ως εκ τούτου, είναι σημαντική  η ανάπτυξη μιας τεχνικής που διατηρεί μια εκτίμηση του μοντέλου με σχετική ακρίβεια πάνω από την ένωση των δεδομένων όλων των κόμβων σε ένα δίκτυο. Προτείνουμε έναν αλγόριθμο παρακολούθησης για μοντέλα πολυπαραγοντικής παλινδρόμησης κατανεμημένων ροών δεδομένων, που βασίζεται στο πρωτόκολλο της Γεωμετρικής Παρακολούθησης, η οποία εγγυάται ένα περιορισμένο σφάλμα μοντέλου και απαιτεί επικοινωνία μόνο όταν το προϋπολογισμένο μοντέλο απέχει αρκετά από το τρέχον. Στόχος μας είναι να συγκρίνουμε εμπειρικά την προτεινόμενη μέθοδο με άλλα υπάρχοντα μοντέλα, προκειμένου να εξετάσουμε αν μπορεί να επιτύχει λιγότερη επικοινωνία, διατηρώντας παράλληλα την επιθυμητή ακρίβεια μοντέλου.
Financing long-gestation projects with uncertain demand
Creators: name: Storey, Jim
Publisher: name: University of British Columbia
Year: 2009

description: Financial crises in East Asia, Russia, and Latin America have caused some to wonder if there is something inherently unstable about financial markets that thwarts their ability to allocate capital appropriate^- and ultimately causes these crises. I build a multi-period, industry-level credit model in which debt-financed entrepreneurs develop homogeneous projects with long gestation periods, sequential investment requirements, and no intermediate cash flows. Entrepreneurs accumulate private signals about terminal demand, and if the signals are bad enough, may decide to halt project development before completion. The prevalence of project suspensions aggregates information and permits the industry size to adjust to the true state of terminal demand. Debt contracts depend upon the pricing power of the creditor; these contracts impact the size of the industry and the timing of the information aggregation. When demand realisations are poor, some investors will be disappointed ex post; aggregate disappointment will depend upon how long the investment behaviour has carried on before suspensions occur, and how large the industry is. I interpret situations of substantial aggregate disappointment as a 'crisis'. Principal results relate to the impact of debt finance on the timing and likelihood of project suspensions. With all equity (self) financing, suspensions will typically be observed, but they may occur relatively late in the game. In contrast, debt finance may lead to very rapid suspensions, depending upon the tools allocated to the creditor. When creditors exercise monopoly control over credit allocation and pricing, profit-maximising creditors can and will force suspensions. This may involve reducing the entrepreneurs' equity contribution and / or subsidizing credit in order to ensure entrepreneurial participation. When credit markets are competitive, creditors lack the pricing power that can be used to structure credit policies that force early suspensions. As debt accumulates and the entrepreneurs' share of liquidation proceeds dwindles, entrepreneurs may not voluntarily suspend operations as this will lead to loss of private benefits. Therefore, there may be no suspensions observed in equilibrium. This problem will be particularly acute when the entrepreneurs' initial equit)' stake is small.
SOEC-based systems for Power-to-X
Creators: name: Hansen, John Bøgild
Publisher: name: figshare
Year: 2020
Subjects: subject: 30602 Chemical Thermodynamics and Energetics
subject: FOS: Chemical sciences

description: Description on how solid oxide electrolysis cells (SOEC) can be thermally integrated with downstream chemical syntheses.
title: Resource Rents, Power, and Political Stability
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Bjorvatn, Kjetil
name: Farzanegan, Mohammad Reza
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: political stability
political power
resource rent
conflict
Economics
Wirtschaft

description: We study the association between resource rents and political stability, highlighting the importance of the distribution of political power as a mediating factor. We present a simple theoretical model showing that increased rents are likely to be positively associated with the stability of a powerful incumbent while destabilizing a less powerful incumbent. Our empirical analysis confirms this prediction: Using panel data for more than 120 countries from 1984-2009, our results show that rents can promote political stability, but only when the political power is sufficiently concentrated. Indeed, if the incumbent is sufficiently weak, rents fuel instability. Our main results hold when we control for the effects of income, quality of institutions, time varying common shocks, country fixed effects and various additional covariates.
Analysis of the Effects of Proposed House and Senate Farm Bills on Rice Returns
Creators: name: Richardson, James W.
name: Outlaw, Joe L.
name: Klose, Steven L.
name: Anderson, David P.
name: Womack, Abner W.
name: Richardson, James W.
name: Outlaw, Joe L.
name: Klose, Steven L.
name: Anderson, David P.
name: Womack, Abner W.
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy

description: This report reflects analysis of projected gross returns under the proposed farm programs – H.R. 2646 the House Bill that passed the House floor on October 5th, the Senate Bill that passed the Senate Agriculture Committee on November 15th and the Cochran/Roberts Bill that was defeated previously in committee.
Approximation properties of multipoint boundary-value problems
Creators: name: Masliuk, Hanna
name: Pelekhata, Olha
name: Soldatov, Vitalii
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34B08, 34B10

description: We consider a wide class of linear boundary-value problems for systems of $r$-th order ordinary differential equations whose solutions range over the normed complex space $(C^{(n)})^m$ of $n\geq r$ times continuously differentiable functions $y:[a,b]\to\mathbb{C}^{m}$. The boundary conditions for these problems are of the most general form $By=q$, where $B$ is an arbitrary continuous linear operator from $(C^{(n)})^{m}$ to $\mathbb{C}^{rm}$. We prove that the solutions to the considered problems can be approximated in $(C^{(n)})^m$ by solutions to some multipoint boundary-value problems. The latter problems do not depend on the right-hand sides of the considered problem and are built explicitly.
description: 9 pages, to be published in "Methods of Functional Analysis and Topology"
Could Spin-Charge Separation be the Source of Confinement?
Creators: name: Niemi, Antti J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Yang-Mills gauge field with gauge group SU(2) decomposes into a single charge neutral complex vector, and two spinless charged scalar fields. At high energies these constituents are tightly confined into each other by a compact U(1) interaction, and the Yang-Mills Lagrangian describes the dynamics of asymptotically free massless gauge vectors. But in a low energy and finite density environment the interaction between the constituents can become weak, and a spin-charge separation may occur. We suggest that the separation between the spin and charge with the ensuing condensation of the charged scalars takes place when the Yang-Mills theory enters confinement. The confining phase becomes then surprisingly similar to the superconducting phase of a high-$T_c$ superconductor.
description: Talk presented at QCD@Work 2005 (Conversano)
Additional file 3 of New Brucella variant isolated from Croatian cattle
Creators: name: Spicic, Silvio
name: Zdelar-Tuk, Maja
name: Ponsart, Claire
name: Hendriksen, Rene S.
name: Reil, Irena
name: Girault, Guillaume
name: Pimlapas Leekitcharoenphon
name: Rukavina, Vesna
name: Rubin, Martina
name: Freddi, Luca
name: Duvnjak, Sanja
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3. Figure Phylogenetic Tree.
Heterogeneous firms and trade costs: a reading of French access to European agro-food market
Creators: name: Chevassus-Lozza, Emmanuelle
name: Latouche, Karine
name: Chevassus-Lozza, Emmanuelle
name: Latouche, Karine
Publisher: name: Unknown
Year: 2008
Subjects: subject: International Relations/Trade
subject: firm heterogeneity
subject: trade costs
subject: European Integration.

description: This article offers a new reading of intra-European trade based on recent developments in new international economics (Melitz, 2003; Chaney, 2008). These models take the heterogeneity of firms into account and offer a micro-economic analysis of the process of selection at work for firms entering markets. An exporting firm has to bear certain specific costs to break into a market, and only sufficiently productive firms are able to do so. Using individual data for French agro-food firms and the distribution of their exports across European markets, this article shows that access conditions to the various European markets are not identical for French firms: the Belgian market would seem to be a natural extension of the French market, whereas the markets of small, distant countries (Austria, Finland or Sweden) are the least accessible. Econometric analysis based on analysis both of the firm selection process and of the value of their exports shows that the standard geographical variables (distance, country size) affecting the single European market still play a major role in the choice of export markets. Results also reveal that there are still remaining trade costs at entry to the different European markets; but these trade frictions don’t matter to all firms in the same way. The higher the firm experience, the lower the impact of trade costs.
From quantum graphs to quantum random walks
Creators: name: Tanner, Gregor
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a short overview over recent developments on quantum graphs and outline the connection between general quantum graphs and so-called quantum random walks.
description: 14 pages, 6 figures
Luminous, High Redshift, Obscured Galaxies and their Environments
Creators: name: Penney, Jordan I.
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: This thesis presents observations of dusty, luminous, high redshift galaxies using mid Infra-Red and radio observations of samples of galaxies uncovered using the Wide-Field Infra-Red Survey Explorer (WISE) All-Sky Mission. Observations of these galaxies are critical to understanding the evolution of galaxies during the epoch of the peak in mergers and star formation activity. Two samples of galaxies are investigated in Chapter 3 and Chapter 4.The galaxies in Chapter 3 were selected using the WISE-All Sky mission, with additional constraints at 1:4 GHz (21 cm) to select for radio-intermediate emission. These galaxies are expected to have radio jets still embedded in their galactic hosts, and the sample within this thesis resides between redshifts of 1:3 < z < 2:9. To understand the nature of the environments that these powerful, luminous galaxies inhabit, the possibility of mergers between nearby galaxies is estimated using mid Infra-Red Spitzer observations over square 5:12 0 ? 5:12 0 ?elds. The galaxies in Chapter 4 were also discovered using the WISE-All Sky mission, but with no constraints on their radio power. These galaxies are among the most luminous known, with Infra-Red luminosities in excess of 1014 L?, placing them in the HyLIRG regime. These luminous, dusty galaxies are expected to contain extremely powerful AGN in their centres, heating the surrounding dust to temperatures & 60 K. Using ? 30 GHz observations of a sample of these galaxies, estimates of their radio properties can be determined to understand the level of free-free and synchrotron emission, and the rates of star formation in the galaxy hosts.
Structural distortions of frustrated quantum spin lattices in high magnetic fields
Creators: name: Derzhko, Oleg
name: Richter, Johannes
name: Schulenburg, Jörg
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the stability of some strongly frustrated antiferromagnetic spin lattices in high magnetic fields against lattice distortions. In particular, we consider a spin-s anisotropic Heisenberg antiferromagnet on the square-kagomé and kagomé lattices. The independent localized magnons embedded in a ferromagnetic environment, which are the ground state at the saturation field, imply lattice instabilities for appropriate lattice distortions fitting to the structure of the localized magnons. We discuss in detail the scenario of this spin-Peierls instability in high magnetic fields which essentially depends on the values of the exchange interaction anisotropy Δand spin s.
On the Magnetic Fields, Beaming Fractions, and Fastness Parameters of Pulsating Ultra-Luminous X-Ray Sources
Creators: name: Erkut, M. H.
name: Türkoğlu, M. M.
name: Ekşi, K. Y.
name: Alpar, M. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The discovery of pulsating ultra-luminous X-ray sources (PULX) suggests that neutron stars are presumably common within the ultra-luminous X-ray source (ULX) population though the majority of the population members are currently lacking pulsations. These systems are likely to host neutron stars accreting mass at super-Eddington (super-critical) rates from their massive companion in high-mass X-ray binaries. Taking into account the spherization of the accretion flow in the super-critical regime, the beaming of X-ray emission, and the reduction of the scattering cross-section in a strong magnetic field, we infer the ranges for the neutron-star surface magnetic dipole field strengths, beaming fractions, and fastness parameters in the PULX M82 X-2, ULX NGC 5907, ULX NGC 7793 P13, NGC 300 ULX1, M51 ULX-7, NGC 1313 X-2, and Swift J0243.6+6124 from a set of conditions based on a variety of combinations of different spin and luminosity states. Using the observed spin-up rates under the critical luminosity condition, we estimate the surface-field strengths in the $\sim 10^{11}-10^{13}\,{\rm G}$ range for all PULX. In general, the results of our analysis under the subcritical luminosity condition indicate surface-field strengths in the $\sim 10^{11}-10^{15}\,{\rm G}$ range. We argue that the PULX do not require magnetar-strength surface dipole fields if beaming is taken into account; yet the fields are strong enough for the neutron stars in ULX to magnetically channel the accretion flow in super-critical accretion disks.
description: 23 pages, 10 figures, 8 tables, published in Astrophysical Journal (updated according to the published version)
Agri-food Trade Specialisation Pattern in the New EU Member States
Creators: name: Drabik, Dusan
name: Bartova, Lubica
name: Drabik, Dusan
name: Bartova, Lubica
Publisher: name: Unknown
Year: 2008
Subjects: subject: International Relations/Trade
subject: agri-food trade
subject: specialisation
subject: EU Member States of 2004 and 2007 enlargements

description: The paper analyses development of agri-food trade specialisation pattern in eight EU Member States of the 2004 and 2007 enlargements (NMS) during the period 2000 – 2005. Over the period analysed, the NMS were not able to hold trade positions in the most competitive commodities, but on the other hand, positions of a number of previously uncompetitive commodities improved. We show convergence of dynamism of agri-food trade specialisation across NMS in trade with the partners/groupings investigated.
Supplemental materials of article "Plasma miR-193b-3p is elevated in type 2 diabetes and could impair glucose metabolism"
Creators: name: Hu, Hua
name: Zhao, Meng
Publisher: name: figshare
Year: 2020
Subjects: subject: 60802 Animal Cell and Molecular Biology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 60104 Cell Metabolism
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplemental materials of article "Plasma miR-193b-3p is elevated in type 2 diabetes and could impair glucose metabolism"
Neue Funde in eṭ-ṭábġa (mit 1 Abbildung im Text)
Creators: name: Schneider, Alfons Maria
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 34 Nr. 1 (1937): Oriens christianus, Band 34, Heft 1
Entropy Guided Adversarial Model for Weakly Supervised Object Localization
Creators: name: Benassou, Sabrina Narimene
name: Shi, Wuzhen
name: Jiang, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Weakly Supervised Object Localization is challenging because of the lack of bounding box annotations. Previous works tend to generate a class activation map i.e CAM to localize the object. Unfortunately, the network activates only the features that discriminate the object and does not activate the whole object. Some methods tend to remove some parts of the object to force the CNN to detect other features, whereas, others change the network structure to generate multiple CAMs from different levels of the model. In this present article, we propose to take advantage of the generalization ability of the network and train the model using clean examples and adversarial examples to localize the whole object. Adversarial examples are typically used to train robust models and are images where a perturbation is added. To get a good classification accuracy, the CNN trained with adversarial examples is forced to detect more features that discriminate the object. We futher propose to apply the shannon entropy on the CAMs generated by the network to guide it during training. Our method does not erase any part of the image neither does it change the network architecure and extensive experiments show that our Entropy Guided Adversarial model (EGA model) improved performance on state of the arts benchmarks for both localization and classification accuracy.
ANALYSIS OF PROFITABILITY OF TRANSFORMATION OF THE PERPETUAL USUFRUCT RIGHT INTO THE RIGHT OF PROPERTY AT VARIOUS TIMES IN THE DURATION OF THE PERPETUAL USUFRUCT RIGHT
Creators: name: Dobek, A.
name: Wajszczuk, Karol
name: Dobek, A.
name: Wajszczuk, Karol
Publisher: name: Unknown
Year: 2008
Subjects: subject: Land Economics/Use
subject: perpetual usufruct right
subject: capitalization rate

description: In view of the growing interest of foreign investors in investments in Poland, especially since Poland’s accession to the European Union, this article analyzes the profitability of the transformation of the perpetual usufruct law into the right of property at various times in the duration of this right, on the basis of the empirical formula presented in Polish law (the legal act) – The Ordinance of the Council of Ministers on the valuation of real estate and the estimated cadastre survey. It was analysed how the fee for the transformation of the perpetual usufruct law into the right of property changes depending on the assumed rate of capitalization, interest rate on the annual fee, the number of years in the unused period of usufruct.
Additional file 1 of PCNA-associated factor (KIAA0101/PCLAF) overexpression and gene copy number alterations in hepatocellular carcinoma tissues
Creators: name: Anchalee Tantiwetrueangdet
name: Panvichian, Ravat
name: Pattana Sornmayura
name: Surasak Leelaudomlipi
name: Macoska, Jill A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Table S1. The top twenty differentially up-regulated genes in hepatocellular carcinoma tissues as compared to normal tissues are shown. KIAA0101 gene product is ranked in the 10th differentially up-regulated genes.
title: Taxation and Consumption: Evidence from a Representative Survey of the German Population
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Hayo, Bernd
name: Uhl, Matthias
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Taxation ∙ Consumption ∙ Representative population survey ∙ Germany
Economics
Wirtschaft

description: Using a representative survey of the German population, this paper studies self-reported individual consumption responses to a recent payroll tax reduction. About 55 per cent of the respondents report that they spend the extra money, indicating considerable potential for tax changes to affect consumption and economic activity. Our analysis of the socio-demographic and economic covariates of consumption responses suggests, among other effects, that interest rates are related to consumption responses to tax changes, and that households with higher income have a higher propensity to consume.
Microtwist elasticity: A continuum approach to zero modes and topological polarization in Kagome lattices
Creators: name: Nassar, Hussein
name: Chen, Hui
name: Huang, Guoliang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The topologically polarized isostatic lattices discovered by Kane and Lubensky (2014, Nat. Phys. 10, 39-45) challenged the standard effective medium theories used in the modeling of many truss-based materials and metamaterials. As a matter of fact, these exhibit Parity (P) asymmetric distributions of zero modes that induce a P-asymmetric elastic behavior, both of which cannot be reproduced within Cauchy elasticity. Here, we propose a new effective medium theory baptized "microtwist elasticity" capable of rendering polarization effects on a macroscopic scale. The theory is valid for trusses on the brink of a polarized-unpolarized phase transition in which case they necessarily exhibit more periodic zero modes than they have dimensions. By mapping each periodic zero mode to a macroscopic degree of freedom, the microtwist theory ends up being a kinematically enriched theory. Microtwist elasticity is constructed thanks to leading order two-scale asymptotics and its constitutive and balance equations are derived for a fairly generic isostatic truss: the Kagome lattice. Various numerical and analytical calculations, of the shape and distribution of zero modes, of dispersion diagrams and of polarization effects, systematically show the quality of the proposed effective medium theory. Most notably, the theory is capable of producing a continuum version of Kane and Lubensky's topological polarization vector.
description: 41 pages, 12 figures
Comment on "Detuning effects in the one-photon mazer"
Creators: name: Abdel-Aty, Mahmoud
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent work, Bastin and Martin (B-M) [Phys. Rev. A 67, 053804 (2003)] have analyzed the quantum theory of the mazer in the off-resonant case. However, our analysis of this case refutes their claim by showing that their evaluation of the coupled equations for the off-resonant case is not satisfactory. The correct expression can be obtained by applying an appropriate formulae for the involved dressed-state parameters.
description: 4 pages
title: Analysis of Monetary Policy Responses After Financial Market Crises in a Continuous Time New Keynesian Model
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Hayo, Bernd
name: Niehof, Britta
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Economics
Wirtschaft
Financial Crisis
Taylor Rule
New Keynesian Models
Dynamic Stochastic Full Equilibrium Continuous Time Model

description: To analyse the interdependence between monetary policy and financial markets in the context of the recent financial crisis, we use stochastic differential equations to develop a dynamic, stochastic general equilibrium New Keynesian model of two open economies. Our focus is on how stock and housing market bubbles are transmitted to and affect the domestic real economy and the consequent contagious effects on foreign markets. We simulate adjustment paths for the economies under two monetary policy rules: a standard open-economy Taylor rule and a modified Taylor rule that takes into account stabilisation of financial markets as a monetary policy objective. The results suggest a clear trade-off for monetary policymakers: under the modified rule, a severe economic recession can be avoided after a financial crisis but only at the price of a strong hike in inflation during the crisis and much more volatile inflation patterns during normal times, compared to under the standard Taylor rule. Using Bayesian estimation techniques, we calibrate the model to the cases of the United States and Canada and find that the resulting economic adjustment paths are similar to the ones we obtained from the extended Taylor rule theoretical model.
title: Regulation of Network Sectors in the EU: A Federalist Perspective
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Kerber, Wolfgang
name: Wendel, Julia
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Economics
Wirtschaft
regulatory networks
legal federalism
telecommunication
EU sector regulation

description: The vertical allocation of regulatory powers within the European two-level system of network sector regulation is analysed from the perspective of the economic theory of legal federalism. The analysis shows that sophisticated combinations of harmonised European rules along with sufficient scope for decentralised decisions of national regulators seem to be optimal. Especially interesting is that networks of regulatory authorities (as BEREC in telecommunications) can play an important role in regard to balancing the advantages and disadvantages of (de)centralisation. Whereas in regard to telecommunication a further shifting of regulatory powers to the EU level cannot be recommended, both in energy and railway markets it might still be necessary to strengthen the regulatory power of the EU.
title: Self‐Monitoring or Reliance on Media Reporting: How Do Financial Market Participants Process Central Bank News?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Hayo, Bernd
name: Neuenkirch, Matthias
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Reliability
Media Reporting
Economics
Wirtschaft
Central Bank Communication
Survey.
Interest Rate Decisions
Financial Market Participants
Information Processing

description: We study how financial market participants process news from four major central banks—the Bank of England (BoE), the Bank of Japan (BoJ), the European Central Bank (ECB), and the Federal Reserve (Fed)—using a novel survey of 195 financial market participants from around the world. Our results indicate that, first, respondents rely more on media reports of central bank events than they do on self‐monitoring. The only exceptions are interest rate decisions in the respondent’s home region. In general, the Fed is watched most closely, followed by the ECB, the BoJ, and the BoE. Second, ordered probit estimations reveal that the perceived reliability of media coverage is negatively associated with degree of self‐monitoring and positively related to the probability of using media reports, particularly in the case of asset managers. The perceived importance of central bank events is positively related to the degree of self‐monitoring in the case of traders. Finally, portfolio managers tend to self‐monitor their home central bank more often than do respondents from other parts of the world.
title: The Impact of UN and US Economic Sanctions on GDP Growth
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Neuenkirch, Matthias
name: Neumeier, Florian
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Economics
Wirtschaft
United States.
economic sanctions
Economic growth
United Nations

description: In this paper, we empirically assess how economic sanctions imposed by the UN and the US affect the target states’ GDP growth. Our sample includes 68 countries and covers the period 1976–2012. We find, first, that sanctions imposed by the UN have a statistically and economically significant influence on economic growth. On average, the imposition of UN sanctions decreases the target state’s real per capita GDP growth rate by 2.3–3.5 percentage points (pp). These adverse effects last for a period of 10 years. Comprehensive UN economic sanctions, that is, embargoes affecting nearly all economic activity, trigger a reduction in GDP growth by more than 5 pp. Second, the effect of US sanctions is much smaller and less distinct. The imposition of US sanctions decreases GDP growth in the target state over a period of 7 years and, on average, by 0.5–0.9 pp.
Alice and Bob in an anisotropic expanding spacetime
Creators: name: Costa, Helder A. S.
name: Carvalho, Paulo R. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a quantum teleportation process between two comoving observers Alice and Bob in an anisotropic expanding spacetime. In this model, we calculate the fidelity of teleportation and we noted an oscillation of its spectrum as a function of the azimuthal angle. We found that for the polar angle $ϕ= \fracπ{2}$ and the azimuthal angle $θ\neq \frac{3π}{4} + nπ$ with $n = 0, 1, 2, ...$ the efficiency of the process decreases, i.e., the fidelity is less than one. In addition, it is shown that the anisotropic effects on the fidelity becomes more significative in the regime of smooth expansion and the limit of massless particles. On the other hand, the influence of curvature coupling becomes noticeable in the regime of fast expansion (values of $\fracρω \gg 1$).
description: 5 pages, 5 figures
title: Direct Distribution of Rents and the Resource Curse in Iran: A Micro-econometric Analysis
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Farzanegan, Mohammad Reza
name: Habibpour, Mohammad
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: direct rents distribution
inequality
Economics
Wirtschaft
household survey
poverty
resource curse
Iran

description: Resource-rich economies and ethnically divided societies are linked to higher income inequality at the macro level. Our goal is to empirically examine the income inequality and welfare effects of the direct distribution of resource rents and subsequent taxation in Iran. We use rich micro survey data covering 140,000 individuals from more than 36,000 Iranian urban and rural households in 2009. Our micro-simulations show that the direct distribution of resource rents among all citizens and the imposition of an additional direct income tax have a significant negative effect on the household GINI index and on poverty. We also examine three alternative policies to the resource dividend (RD) policy. The results indicate that the RD policy is the most successful policy for addressing rents-induced inequality in Iran compared with the alternative policies.
Deformed $σ$-models, Ricci flow and Toda field theories
Creators: name: Bykov, Dmitri
name: Lust, Dieter
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It is shown that the Pohlmeyer map of a $σ$-model with a toric two-dimensional target space naturally leads to the `sausage' metric. We then elaborate the trigonometric deformation of the $\mathrm{CP}^{n-1}$-model, proving that its $T$-dual metric is Kähler and solves the Ricci flow equation. Finally, we discuss a relation between flag manifold $σ$-models and Toda field theories.
description: 40 pages
The Role Of Social Supports And Copying Strategies In Mediating The Impact Of Civil War On Libyan Children's Mental Health
Creators: name: Farag, Ahmad A. H.
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: Background: The vast majority of evidence is based on the high rates of mental health problems among refugee children and the risk factors involved; there is less evidence with regard to internally displaced and protective factors, particularly when simultaneously considering both individual and environmental factors.Aims: The study sought to investigate: 1. the association between exposure to civil war trauma and mental health problems among displaced parents and children; and 2. whether coping strategies and perceived social support moderated this association.Method: One hundred internally displaced children in Libya aged between 9 and 15 years and the same number of parents participated in the study, who completed measures of mental health problems (children: CRIES-8 and SDQ; parents: IES-22 and GHQ-12). Furthermore, the Gaza Traumatic Event Checklist, Coping Strategies and Perceived Social Support from Family and Peers questionnaires were completed by both parents and children. The research hypotheses were tested via multiple regression models. All questionnaires were subsequently subjected to exploratory factor analysis (EFA), following which the multiple regression testing was repeated according to the revised subscales.Results: Internally displaced parents and their children reported high rates of post-traumatic stress and mental health problems, which were significantly associated with exposure to trauma. This association was moderated by parents using support-seeking and children using problem-solving strategies. Although several revised subscales emerged from the EFA, these did not alter the key findings of the regression models.Conclusions: War conflict and resulting displacements have adverse effects on parents’ and children’s mental health. Libyan families appeared to rely on their own coping strategies rather than on support systems, which indicates that they were not reintegrated in their host communities. The findings have implications for policy, service provision and practice. Preventive and responsive interventions should be multi-modal and implemented throughout the course of families’ displacement.
Conceptualisation of family farms’ flexibility
Creators: name: Renner, Swetlana
name: Pieniadz, Agata
name: Renner, Swetlana
name: Pieniadz, Agata
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: flexibility
subject: output price risk
subject: family farms

description: Agricultural enterprises in transition countries face dynamic changes in the prevailing economic, legal and political conditions. The success of an enterprise depends on its ability to adjust its farming system in response to these changing conditions. To meet this challenge, flexible and adaptable production technology is required. Thus, the farm’s choice of technology is an important decision which determines its future performance. Although the concept of a firm’s flexibility is widely analysed in microeconomics literature, there is no comprehensive framework to facilitate the analysis of family farms’ flexibility, especially considering market imperfections and other obstacles associated with the transition process. In this paper we formulate the theoretical framework for flexibility analysis in order to investigate the impact of farm-specific characteristics on optimal flexibility design and to explain the differences between farms using different production technologies. In a simplified formal model, a competitive risk-averse firm producing one product is assumed to face fluctuating demand under uncertainty. By choosing the level of flexibility, the decision-maker determines the technology of the firm, expressed by the cost function. The optimal level of flexibility will be found by backward induction in the two-stage decision-making process, including ex ante technology decision and ex post output level decision. Using comparative statics and existing theoretical literature, some hypothesis about the relationship between flexibility and other firm characteristics will be formalised. Some possible model extensions that account for specific characteristics of the family farm business in transition countries, as well as future empirical analysis are discussed.
MANAGEMENT DECISIONS ON FARM-LEVEL AND THEIR LINK TO WEATHER REQUIREMENTS: A CASE STUDY FOR THE UPPER DANUBE RIVER BASIN
Creators: name: Apfelbeck, Josef
name: Huigen, Marco
name: Krimly, Tatjana
name: Sanchez, G.C.
name: Apfelbeck, Josef
name: Huigen, Marco
name: Krimly, Tatjana
name: Sanchez, G.C.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Crop management
subject: heuristic decisions
subject: regional climate change

description: It is undeniable that the global warming has already affected the Earth’s biota, whereby the rise of air temperature is an important factor. Agricultural systems are also affected by climate change via the interrelated biophysical layers. Climate influences farmers` decisions in crop management. To simulate the interactions between climate/weather and the different crop management activities an agent based modelling approach is used, in which farmers` decision making is based on crop requirements from literature. To validate these decision algorithms on how farmers arrange their daily crop management decisions like planting, fertilizing, and harvesting due to changes of climate parameters, a statistical analysis of empirical data (1970-2003) on temperature and different crop growth stages, which represent different management activities, was carried out. Results show that every crop has to be considered separately and the requirements of the different crops on temperature have to be observed in different ways. There are crops which have a low germination temperature, for those the average daily temperature shows no relation with the planting day. In this case the temperature sum in a specific period is more precise. On the opposite side crops with a high germination temperature show significant correlation results with the average daily temperature of a period before the planting day.
Thermodynamics of high temperature H2O and CO2 electrolysis
Creators: name: Mogensen, Mogens Bjerg
Publisher: name: figshare
Year: 2020
Subjects: subject: 30602 Chemical Thermodynamics and Energetics
subject: FOS: Chemical sciences

description: Discussion on the thermodunamics and kinetics of solid oxide electrolysis cells (SOEC), alkaline electrolysis and polymer-electrolyte-membrane (PEM) electrolysis.
Shape Persistence in Elicited Subjective Crop Yield Probability Density Functions
Creators: name: Clop-Gallart, M. Merce
name: Juarez-Rubio, Francisco
name: Clop-Gallart, M. Merce
name: Juarez-Rubio, Francisco
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Subjective crop yield PDF elicitation
subject: Visual impact method
subject: Methodological persistence

description: The shape persistence of a crop yield probability density function (PDF) was studied by using two variants of the Visual Impact Method (VIM) to elicit subjective estimations by farmers. In one variant ten weights were used to describe the PDF and in the other variant the farmer chose the number of weights. Results were compared directly and by means of Weibull distributions fitting, with evidence being obtained in favor of methodological persistence and the equivalence of the two estimation methods.
Impact of the ‘Family-firm life cycle’ on the Management Processes Involved in Sustainable Glasshouse Horticulture
Creators: name: Taragola, Nicole
name: Van Lierde, Dirk
name: Van Huylenbroeck, Guido
name: Taragola, Nicole
name: Van Lierde, Dirk
name: Van Huylenbroeck, Guido
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: farm management
subject: horticulture
subject: sustainability

description: In Flanders glasshouse vegetables and ornamental plants are typically produced at family businesses. At this type of businesses the objectives and long-term firm developments are influenced by the so called ‘family-firm life cycle’. In many cases the firm shows a life cycle that corresponds with the life cycle of the entrepreneur. The objective of the paper is to test the hypothesis that the ‘family-firm life cycle’ will have an impact on the personal and business characteristics, objectives and the quality of the management processes involved in sustainable glasshouse horticulture. As sustainable horticulture integrates the three P’s (People, Planet, Profit) special attention is paid to human resource, environmental and financial management. Data for the research are based on interviews and accounting data at 138 glasshouse holdings situated in Flanders (northern part of Belgium). The results reveal that the glasshouse managers in the different phases of the ‘family-firm life cycle’ show significant differences in age, education level and numbers of seminars attended. The economic dimension, modernity of durable goods, solvency and investment pattern of the firms in the different stages of the ‘family-firm life cycle’ also show significant differences. At the older businesses the availability of a successor has an important influence. The results confirm the hypothesis that the objectives and the quality of the management processes involved in environmental, human resource and financial management are dependent on the phase in the ‘family-firm life cycle’. In the early stages firm managers are more ambitious and attach a higher importance to the management processes involved in sustainable development. In the later stages the availability of a successor has an important influence. Unexpectedly no significant influence of the phase in the ‘family-firm life cycle’ on the income obtained per familial labour unit is found. The insights derived from this research have important implications both for research and practice. They can enable glasshouse growers and advisers to take and/or support correct decisions and may help policy makers to differentiate on the base of the ‘family-firm life cycle’.
title: The Macroeconomic Impact of Unconventional Monetary Policy Shocks
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Meinusch, Annette
name: Tillmann, Peter
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: zero lower bound
LASP
Economics
Wirtschaft
unconventional monetary policy
quantitative easing
Qual VAR

description: With the Federal Funds rate approaching the zero lower bound, the U.S.
Federal Reserve adopted a range of unconventional monetary policy measures known as Quantitative Easing (QE). Quantifying the impact QE has on the real economy, however, is not straightforward as standard tools such as VAR models cannot easily be applied. In this paper we use the Qual VAR
model (Dueker, 2005) to combine binary information about QE announcements with an otherwise standard monetary policy VAR. The model filters an unobservable propensity to QE out of the observable data and delivers impulse responses to a QE shocks. In contrast to other empirical approaches, QE is endogenously depending on the business cycle, can easily be studied in terms of unexpected policy shocks and its dynamic effects can be compared to a conventional monetary easing. We show that QE shocks have a large impact on real and nominal interest rates and financial conditions and a smaller impact on real activity.