cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electronic structure of ytterbium monohydroxide molecule to search for axionlike particles
Creators: name: Maison, D. E.
name: Flambaum, V. V.
name: Hutzler, N. R.
name: Skripnikov, L. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Recently the YbOH molecule has been suggested as a candidate to search for the electron electric dipole moment (eEDM) which violates spatial parity (P) and time-reversal (T) symmetries [I. Kozyryev and N. R. Hutzler, Phys. Rev. Lett. 119, 133002 (2017)]. In the present paper we show that the same system can be used to measure coupling constants of the interaction of electrons and nucleus with axionlike particles. The electron-nucleus interaction produced by the axion exchange induces T,P-violating a EDM of the whole molecular system. We express the corresponding T,P-violating energy shift produced by this effect in terms of the axion mass and product of the axion-nucleus and axion-electron coupling constants.
Factors affecting the lipoprotein distribution of cyclosporine : lipoprotein lipid concentration, lipoprotein composition and cholesteryl ester transfer protein activity
Creators: name: Wong, Wesley
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to determine factors that influence the lipoprotein distribution of cyclosporine (CSA). Cyclosporine is an immunosuppressant drug that has been effective in preventing graft rejection but the use of cyclosporine is limited by its renal toxicity. The majority of the cyclosporine (-95%) is found in the high density lipoprotein (HDL) and low density lipoprotein (LDL) fractions with the remainder in the very low density lipoprotein fraction (VLDL) following incubation in human plasma. It has been clinically observed that patients with hypertriglyceridemia show decreases in CSA activity while in hypocholesterolemic patients, increases in CSA toxicity occur. Such dyslipidemias represent changes in lipoprotein lipid concentration and composition which may result in changes in the lipoprotein distribution of CSA. We studied such changes and found that as lipid concentration of LDL and VLDL increased, more CSA was found to be associated with this lipoprotein fraction. A parallel decrease in CSA was found to be associated with HDL when the triglyceride concentration of HDL was increased. Another factor that was found to affect the lipoprotein distribution of cyclosporine was cholesteryl ester transfer protein (CETP), which is normally involved in the exchange of cholesteryl ester for triglyceride between HDL and LDL or VLDL. The transfer of CSA from LDL to HDL was shown to be dependent on CETP activity while the reciprocal transfer was independent of CETP. Thus we have demonstrated that the lipoprotein distribution of cyclosporine can be influenced by both lipoprotein lipid composition and the activity of CETP. Because diseased and transplant patients have been shown to have changes in both lipid profile and CETP activity, this may alter the lipoprotein distribution of cyclosporine and possibly alter cyclosporine activity. By monitoring a patient's lipid profile and CETP activity it may be possible to more accurately dose cyclosporine in order to maximize its efficacy while minimizing cyclosporine toxicity.
Evolution of the most recent common ancestor of a population with no selection
Creators: name: Simon, Damien
name: Derrida, Bernard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We consider the evolution of a population of fixed size with no selection. The number of generations $G$ to reach the first common ancestor evolves in time. This evolution can be described by a simple Markov process which allows one to calculate several characteristics of the time dependence of $G$. We also study how $G$ is correlated to the genetic diversity.
description: 21 pages, 10 figures, uses RevTex4 and feynmf.sty Corrections : introduction and conclusion rewritten, references added
Asymptotic flatness and nonflat solutions in the critical 2+1 Horava theory
Creators: name: Bellorin, J.
name: Borquez, C.
name: Droguett, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Horava theory in 2+1 dimensions can be formulated at a critical point in the space of coupling constants where it has no local degrees of freedom. This suggests that this critical case could share many features with 2+1 general relativity, in particular its large-distance effective action that is of second order in derivatives. To deepen on this relationship, we study the asymptotically flat solutions of the effective action. We take the general definition of asymptotic flatness from 2+1 general relativity, where an asymptotically flat region with a nonfixed conical angle is approached. We show that a class of regular asymptotically flat solutions are totally flat. The class is characterized by having nonnegative energy (when the coupling constant of the Ricci scalar is positive). We present a detailed canonical analysis on the effective action showing that the dynamics of the theory forbids local degrees of freedom. Another similarity with 2+1 general relativity is the absence of a Newtonian force. In contrast to these results, we find evidence against the similarity with 2+1 general relativity: we find an exact nonflat solution of the same effective theory. This solution is out of the set of asymptotically flat solutions.
description: This version matches the version published in journal. arXiv admin note: substantial text overlap with arXiv:2006.08693
On Affinity Measures for Artificial Immune System Movie Recommenders
Creators: name: Aickelin, Uwe
name: Chen, Qi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: We combine Artificial Immune Systems 'AIS', technology with Collaborative Filtering 'CF' and use it to build a movie recommendation system. We already know that Artificial Immune Systems work well as movie recommenders from previous work by Cayzer and Aickelin 3, 4, 5. Here our aim is to investigate the effect of different affinity measure algorithms for the AIS. Two different affinity measures, Kendalls Tau and Weighted Kappa, are used to calculate the correlation coefficients for the movie recommender. We compare the results with those published previously and show that Weighted Kappa is more suitable than others for movie problems. We also show that AIS are generally robust movie recommenders and that, as long as a suitable affinity measure is chosen, results are good.
Food and Agriculture Organisation
Creators: name: Mayne, J.B.
name: Mayne, J.B.
Publisher: name: Unknown
Year: 1948
Subjects: Teaching/Communication/Extension/Profession

description: At the end of 1947, a series of articles dealing with the Food and Agriculture Organisation of the United Nations was published in this Review. It is now desirable to bring this information up to date in the light of more recent developments in order that it may be possible to re-assess the work of F.A.O. in relation to the solution of world food problems.
CARPool: fast, accurate computation of large-scale structure statistics by pairing costly and cheap cosmological simulations
Creators: name: Chartier, Nicolas
name: Wandelt, Benjamin
name: Akrami, Yashar
name: Villaescusa-Navarro, Francisco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: To exploit the power of next-generation large-scale structure surveys, ensembles of numerical simulations are necessary to give accurate theoretical predictions of the statistics of observables. High-fidelity simulations come at a towering computational cost. Therefore, approximate but fast simulations, surrogates, are widely used to gain speed at the price of introducing model error. We propose a general method that exploits the correlation between simulations and surrogates to compute fast, reduced-variance statistics of large-scale structure observables without model error at the cost of only a few simulations. We call this approach Convergence Acceleration by Regression and Pooling (CARPool). In numerical experiments with intentionally minimal tuning, we apply CARPool to a handful of GADGET-III $N$-body simulations paired with surrogates computed using COmoving Lagrangian Acceleration (COLA). We find $\sim 100$-fold variance reduction even in the non-linear regime, up to $k_\mathrm{max} \approx 1.2$ $h {\rm Mpc^{-1}}$ for the matter power spectrum. CARPool realises similar improvements for the matter bispectrum. In the nearly linear regime CARPool attains far larger sample variance reductions. By comparing to the 15,000 simulations from the Quijote suite, we verify that the CARPool estimates are unbiased, as guaranteed by construction, even though the surrogate misses the simulation truth by up to $60\%$ at high $k$. Furthermore, even with a fully configuration-space statistic like the non-linear matter density probability density function, CARPool achieves unbiased variance reduction factors of up to $\sim 10$, without any further tuning. Conversely, CARPool can be used to remove model error from ensembles of fast surrogates by combining them with a few high-accuracy simulations.
description: 18 pages, 18 figures. v2: Improved and published version; references and discussions added, typos fixed, slight visual modifications of some figures
SDSS J124058.03-015919.2: A new AM CVn star with a 37-minute orbital period
Creators: name: Roelofs, G. H. A.
name: Groot, P. J.
name: Marsh, T. R.
name: Steeghs, D.
name: Barros, S. C. C.
name: Nelemans, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high time resolution VLT spectroscopy of SDSS J124058.03-015919.2, a new helium-transferring binary star identified in the Sloan Digital Sky Survey. We measure an orbital period of 37.355+/-0.002 minutes, confirming the AM CVn nature of the system. From the velocity amplitudes of the accretor and the accretion stream--disc impact, we derive a mass ratio q=0.039+/-0.010. Our spectral coverage extends from 3700A--9500A and shows the presence of helium, nitrogen, silicon and iron in the accretion disc, plus the redshifted, low-velocity "central spikes" in the helium lines, known from the low-state AM CVn stars GP Com and CE 315. Doppler tomography of the helium and silicon emission lines reveals an unusual pattern of two bright emission sites in the tomograms, instead of the usual one emission site identified with the impact of the mass stream into the accretion disc. One of the two is preferred as the conventional stream--disc impact point in velocity space, at the 3-sigma confidence level. We speculate briefly on the origin of the second.
description: Accepted for publication in MNRAS
Euro-Mediterranean Supply Chain Developments and Trends in Trade Structures, in the Fresh Fruit and Vegetable Sector
Creators: name: Kalaitzis, Prodromos
name: Van Dijk, Gert
name: Baourakis, George
name: Kalaitzis, Prodromos
name: Van Dijk, Gert
name: Baourakis, George
Publisher: name: Unknown
Year: 2007
Subjects: subject: Industrial Organization
subject: International Relations/Trade
subject: Euro-Med Free Trade analysis
subject: Supply chain restructure
subject: supply chain efficiency
subject: fresh fruit and vegetables trade
subject: vertical coordination

description: Supply chains for fresh fruit and vegetables, are going through considerable re-shaping phase worldwide. This study analyses the trends which impose those changes and focuses mainly at the wholesale and export trading of the Euro-Mediterranean supply chain (namely, on how fruit and vegetable producer, wholesale and export firms react to the market forces that direct them). Producer organizations and wholesale firms one the one hand of The Netherlands, Germany and other EU member countries, and of Non- EU Member Mediterranean countries, on the other hand, are the subject of this study. Two graphical representation of the Dutch and the German supply chains respectively are presented here as the main instrument to demonstrate the dynamics of the sectors structure, by describing the position, function size and development for the main chain partner in each of the aforementioned markets. The Euro-Med dimension of the fruit and vegetable supply chain, is analyzed by attempting an impact assessment and an estimation of the potential development of further supply chain integration or collaboration between firms in EU member countries and Mediterranean partner countries. The existing policy framework (the CMO for the fruit and vegetable sector of the CAP), is also taken into consideration as it particularly affects the relationships developed between producer organizations and wholesale firms and retail chains.
Marginal Farmers and Agri-Environmental Schemes: Evaluating Policy Design Adequacy for the Environmental Fallow Measure
Creators: name: Hurle, Jesus Barreiro
name: Goded, Maria Espinosa
name: Hurle, Jesus Barreiro
name: Goded, Maria Espinosa
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Agri-environmental policy
subject: participation
subject: marginal areas
subject: policy design

description: This paper examines the factors affecting farmer's participation in an agri-environmental scheme (AES) in marginal areas implying few changes in the traditional farm management (environmental fallow). The enrolment theoretical micro-economic model reveals that farmers` (extrinsic) factors as well as decision maker's (intrinsic) factors are important for farmer's participation, without disregarding the role of social capital. The farm and farmer characteristics (intrinsic factors) as well as the influence of the social capital have been tested trough the specification and estimation of an adoption model for dry-land marginal farmers in Granada (southern Spain). 300 farmers with cereal dry-land specialization have been surveyed in order to identify factors influencing their enrolment decision and to derive scheme design modifications to improve the AES success, understood as participation rate. Due to the fact that the effects of applying this measure do not have significant effect on the food and animal production, the participation decision is hypothesized to be mainly driven by the farmer's attitude reflecting the importance of the social capital in order to educate farmers. Nevertheless, AES interaction with other agricultural policies, such as LFA compensatory payments, restraints the possibility of this scheme's success specially when these payments imply greater financial resources. Further research is needed to see whether this same pattern holds when considering AES implying a more intensive change in the farm management.
Characterization and Typification of Sheep Farms Oriented Towards Meat Production in Aragon (Spain)
Creators: name: Pardos, L.
name: Maza Rubio, M.T.
name: Fantova, E.
name: Pardos, L.
name: Maza Rubio, M.T.
name: Fantova, E.
Publisher: name: Unknown
Year: 2007
Subjects: Livestock Production/Industries

description: The general aim of the present study is to characterize a group of meat sheep farms that form part of the management network of an Aragonese co-operative using a series of different variables: sociological, structural, technical, income and costs and economic results. The Factor Analysis has proved to be extremely useful in revealing the interrelations between different variables that characterize farms. Moreover has served as the basis for a subsequent segmentation by applying a Cluster Analysis. Having defined the groups, a Variance Analysis was performed to see if they were also statistically different in a set of additional variables that was necessary to obtain a practical significance. Economic results are not linked to certain feed costs but rather it would appear that productivity is the variable that is most closely related to results. In order to achieve high economic results, productivity must be high or at least average, if feed costs are low. On the other hand, low economic results are related to low productivity or average productivity if feed costs, in this latter case, are high.
Mohr, Helmut: Die Ausbreitung der evangelischen Gemeinschaft in Nordhessen
Creators: name: Szobries, Heinz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 2 (1978): Ökumenische Rundschau, Band 27, Heft 2
Spanish Wine Consumer Behaviour: A Stated and Revealed Preferences Analysis
Creators: name: Nadhem, Mtimet
name: Miguel, Albisu Luis
name: Nadhem, Mtimet
name: Miguel, Albisu Luis
Publisher: name: Unknown
Year: 2007
Subjects: subject: Consumer/Household Economics
subject: wine
subject: consumer behaviour
subject: Spain
subject: stated preference
subject: revealed preference
subject: DO

description: Overall wine consumption in Spain is decreasing while, at the same time, Designation of Origin (DO) wine consumption is increasing gradually. This study examines Spanish DO wine consumer behaviour through stated preferences (SP) and revealed preferences (RP) data. Part-worth utilities are calculated and results from both analyses are compared to look for similarities and differences between what respondents say on surveys and what they really do on real purchases. Consumer segmentation is undertaken based on purchase frequencies. In a second step, we try to pool the two data sources in order to get more meaningful and robust results. Results indicate similarities in the consumer choice process when comparing the two data sources, especially for the preference of the DO and wine aging attributes. The only difference detected is the price variable, where a concave price-utility function is obtained with the SP analysis and a negative linear price coefficient is obtained with the RP analysis. Likelihood ratio statistic indicates that equal parameters hypothesis is rejected, meaning that it is not possible to merge the two data sources. This is mainly due to the difference on consumers price perception which could be explained by the different purchase occasion selected in each case.
Fair and Representative Subset Selection from Data Streams
Creators: name: Wang, Yanhao
name: Fabbri, Francesco
name: Mathioudakis, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We study the problem of extracting a small subset of representative items from a large data stream. In many data mining and machine learning applications such as social network analysis and recommender systems, this problem can be formulated as maximizing a monotone submodular function subject to a cardinality constraint $k$. In this work, we consider the setting where data items in the stream belong to one of several disjoint groups and investigate the optimization problem with an additional \emph{fairness} constraint that limits selection to a given number of items from each group. We then propose efficient algorithms for the fairness-aware variant of the streaming submodular maximization problem. In particular, we first give a $ (\frac{1}{2}-\varepsilon) $-approximation algorithm that requires $ O(\frac{1}{\varepsilon} \log \frac{k}{\varepsilon}) $ passes over the stream for any constant $ \varepsilon>0 $. Moreover, we give a single-pass streaming algorithm that has the same approximation ratio of $(\frac{1}{2}-\varepsilon)$ when unlimited buffer sizes and post-processing time are permitted, and discuss how to adapt it to more practical settings where the buffer sizes are bounded. Finally, we demonstrate the efficiency and effectiveness of our proposed algorithms on two real-world applications, namely \emph{maximum coverage on large graphs} and \emph{personalized recommendation}.
description: 11 pages, 8 figures, to appear in the Web conference 2021 (WWW '21)
Superbursts from Strange Stars
Creators: name: Page, Dany
name: Cumming, Andrew
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent models of carbon ignition on accreting neutron stars predict superburst ignition depths that are an order of magnitude larger than observed. We explore a possible solution to this problem, that the compact stars in low mass X-ray binaries that have shown superbursts are in fact strange stars with a crust of normal matter. We calculate the properties of superbursts on strange stars, and the resulting constraints on the properties of strange quark matter. We show that the observed ignition conditions exclude fast neutrino emission in the quark core, for example by the direct Urca process, which implies that strange quark matter at stellar densities should be in a color superconducting state. For slow neutrino emission in the quark matter core, we find that reproducing superburst properties requires a definite relation between three poorly constrained properties of strange quark matter: its thermal conductivity, its slow neutrino emissivity and the energy released by converting a nucleon into strange quark matter.
description: 4 pages, submitted to Ap. J. Lett
Technical Efficiency and Productivity Change of Dairy Farms: A comparison of France and Hungary
Creators: name: Fogarasi, Jozsef
name: Latruffe, Laure
name: Fogarasi, Jozsef
name: Latruffe, Laure
Publisher: name: Unknown
Year: 2007
Subjects: Productivity Analysis

description: The paper investigates the difference in technical efficiency, productivity and technology between French and Hungarian dairy farms, in 2001 and 2002, using Data Envelopment Analysis with separate and a common frontier. Results indicate that Hungarian farmers are more clustered to their own frontier than French farms are, but French farms are, on the other hand, more scale efficient. Both samples have increased their productivity between both years, with a higher technological change for Hungary. Comparing the technology of both countries reveals that Hungarian farms have a superior technology. Under a common hypothetical technology, Hungarian farms would be the leaders but French farms would nevertheless succeed in increasing their productivity as much as they do under their own frontier.
Beazley, George G.: Die Kirche der Jünger Christi (Disciples)
Creators: name: Szobries, Heinz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 2 (1978): Ökumenische Rundschau, Band 27, Heft 2
Path Integral Analysis of Arrival Times with a Complex Potential
Creators: name: Halliwell, J. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A number of approaches to the arrival time problem employ a complex potential of a simple step function type and the arrival time distribution may then be calculated using the stationary scattering wave functions. Here, it is shown that in the Zeno limit (in which the potential becomes very large), the arrival time distribution may be obtained in a clear and simple way using a path integral representation of the propagator together with the path decomposition expansion (in which the propagator is factored across a surface of constant time). This method also shows that the same result is obtained for a wide class of complex potentials.
description: 8 pages
Exploring Convenience Food Consumption through a Structural Equation Model
Creators: name: Botonaki, Anna
name: Natos, Dimitrios
name: Mattas, Konstadinos
name: Botonaki, Anna
name: Natos, Dimitrios
name: Mattas, Konstadinos
Publisher: name: Unknown
Year: 2007
Subjects: Food Consumption/Nutrition/Food Safety

description: In this study the model of convenience orientation suggested by Scholderer and Grunert (2005) is applied in order to examine consumer behavior in the context of convenience food usage. The empirical results indicate that socio-demographic characteristics affect behavior both directly and indirectly through perceived time resources and convenience orientation towards meal preparation and clearing up. Findings seem to be important for all the bodies involved in the marketing of convenience food products since they describe the way various consumer characteristics interact affecting the consumption of such products.
Identification of cross-neutralizing epitopes on toxic shock syndrome toxin-1 and staphylococcal enterotoxin B
Creators: name: Pang, Liwina Tin Yan
Publisher: name: University of British Columbia
Year: 2009

description: Toxic Shock Syndrome (TSS) is primarily caused by Toxic Shock Syndrome Toxin-1 (TSST-1), Staphylococcal Enterotoxin A (SEA), Staphylococcal Enterotoxin B (SEB), and Staphylococcal Enterotoxin C (SEC). These toxins belong to a family of pyrogenic toxin superantigens (PTAgs) produced by Staphylococcus aureus. These PTAgs share similar immunobiological properties, including the induction of massive release of cytokines and stimulation of T cell proliferation in a VP-specific manner. The crystal structures of most PTAgs are now known. They share a similar basic structure even though their primary sequences are different. Despite the structural and immunobiological similarities, no cross-reactivity between TSST-1 and other PTAgs has been demonstrated in serological assays and neutralization assays. Recently, our laboratory has developed a neutralizing murine anti-TSST-1 monoclonal antibody (MAb5) which demonstrated significant cross-reactivity with SEB in ELISA. Since previous studies have shown that MAb5 can neutralize TSST-l-induced superantigenic and lethal activities both in vitro and in vivo, the present study was undertaken to evaluate possible cross-neutralizing epitopes on TSST-1 and SEB using MAb5. Our experimental approach in addressing this question included: (1) assessment of the ability of MAb5 to cross-neutralize SEB-induced superantigenic activities in vitro and in vivo; (2) determination of the location of the crossreactive epitopes on TSST-1 and SEB by epitope peptide mapping; (3) evaluation of the importance of the cross-reactive epitope as a functional domain by the use of synthetic peptides. MAb5 was found to partially inhibit SEB-induced T cell mitogenesis (63%) and TNFa secretion (70%) in human blood mononuclear cells (HPBMC) in a dose dependent manner, while a control anti-TSST-1 monoclonal antibody, MAb6, had no effect. In order to locate the cross-reactive epitopes on TSST-1 and SEB, binding of MAb5 to a set of overlapping decapeptides homologous to TSST-1 (1-194) and SEB (1-239) were determined. MAb5 recognized a linear sequence of 5 amino acids ( " YSPAF5 6 ) on TSST- 1, as well as a linear sequence of 4 amino acids ( 8 5FGAN8 8 ) on SEB. These epitopes are structurally similar but are topologically located in different areas of the respective toxins. Furthermore, a 10 mer peptide corresponding to SEB (83-92), ⁸³ DWGANYYYQ ⁹² , was found to inhibit SEB-induced T cell mitogenesis (90%) and TNFa secretion (90%) from HPBMC in vitro, while an irrelevant, scrambled peptide had no effect. These data suggest that MAb5 recognizes structurally similar motifs of SEB and TSST-1, and contains neutralizing activity against these related PTAgs.
The Reform of the CMO in Fruits and Vegetables: A Holistic Approach
Creators: name: Garcia Alvarez-Coque, Jose-Maria
name: Lopez, Raul Compes
name: Puig, Amparo Baviera
name: Garcia Alvarez-Coque, Jose-Maria
name: Lopez, Raul Compes
name: Puig, Amparo Baviera
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business

description: The main characteristics of EU's market in fruits and vegetables are trend towards overproduction, price fluctuations, and relatively low protection and public support. The key instruments of the CMO are processing aids and support to Operational Funds. The current regulation has been more successful in encouraging improvements in quality and marketing than in stabilising prices and guaranteeing adequate income levels, mainly in fruits and in the great southern countries. The lack of common European action in the fields of import control and access to new foreign markets creates more pressure in the common market. The proposal of CMO's reform comes after the great CAP's change of 2003 -and its new paradigm- and the budget agricultural agreement until 2013. In practice, this reduces the real policy options for the new regulation. Main changes should occur in processing aids, where forces to decouple are strong; given that exports refunds are already phasing out and markets withdrawals are in decline. The main political defy is how to promote horizontal concentration through PO and to avoid the price crisis. To solve the issue of stability (or decline) of the human consumption, more can be done from the policy. The farmer's influence in political decision seems weak. The scope for radical changes in fund distribution will be possible at national level.
Bath-induced Zeno localization in driven many-body quantum systems
Creators: name: Maimbourg, Thibaud
name: Basko, Denis M.
name: Holzmann, Markus
name: Rosso, Alberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a quantum interacting spin system subject to an external drive and coupled to a thermal bath of spatially localized vibrational modes, serving as a model of Dynamic Nuclear Polarization. We show that even when the many-body eigenstates of the system are ergodic, a sufficiently strong coupling to the bath may effectively localize the spins due to many-body quantum Zeno effect, as manifested by the hole-burning shape of the electron paramagnetic resonance spectrum. Our results provide an explanation of the breakdown of the thermal mixing regime experimentally observed above 4 - 5 Kelvin.
description: Revised version. 4 + 22 pages
Twisted local systems solve the (holographic) loop equation of large-N QCD_4
Creators: name: Bochicchio, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a holographic map from the loop equation of large-N QCD in d=2 and d=4, for planar self-avoiding loops, to the critical equation of an equivalent effective action. The holographic map is based on two ingredients: an already proposed holographic form of the loop equation, such that the quantum contribution is reduced to a regularized residue; a new conformal map from the region encircled by the based loop to a cuspidal fundamental domain in the upper half-plane, such that the regularized residue vanishes at the cusp. As a check, we study the first coefficient of the beta function and that part of the second coefficient which arises from the rescaling anomaly, in passing from the Wilsonian to the canonically normalised (holographic) effective action.
description: 42 pages, latex; abstract shortened and a reference added as suggested by the referee; typos in Eq.(72,76,77,82,83,84) corrected
Connecting Product Attributes with Emotional Benefits. Analysis of a Mediterranean product across consumer age segments
Creators: name: Barrena Figueroa, Ramo
name: Sanchez Garcia, Mercedes
name: Barrena Figueroa, Ramo
name: Sanchez Garcia, Mercedes
Publisher: name: Unknown
Year: 2007
Subjects: subject: Demand and Price Analysis
subject: wine
subject: consumer behaviour
subject: laddering
subject: emotions
subject: differentiation

description: Due to a high level of product substitution in the food market, it often proves difficult to strike a balance between supply and demand. This is especially true in sectors with a such high level of competition and product differentiation as the wine producing sector. Faced with the difficulty of differentiating the product in terms of its technical characteristics, quality and price, therefore, a useful alternative is to explore what consumers perceive to be its "emotional benefits", since these have been shown to have a decisive effect on consumer purchasing decisions. For marketing purposes, an understanding of how consumers' personality traits condition their choice of products can help manufacturers to improve their strategic positioning in the market. The aim of this study is to check for the presence of emotional factors in the consumption of wine, a traditional component of the Mediterranean diet, and, if such factors are found, test them for variation across consumer age segments. An understanding of this issue may help the various agents in the distribution chain to differentiate their products, and enable them to set up more effective communication policies to improve their strategic positioning in the market. The study uses the laddering technique to interview wine consumers in Navarra.
Zero Field Hall Effect in (2+1)-dimensional QED
Creators: name: Leitner, Marianne
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In QED of two space dimensions, a quantum Hall effect occurs in the absence of any magnetic field. We give a simple and transparent explanation. In solid state physics, the Hall conductivity for non-degenerate ground state is expected to be given by an integer, the Chern number. In our field-free situation, however, the conductivity is $\pm 1/2$ in natural units. We fit this half-integral result into the topological setting and give a geometric explanation reconciling the points of view of QFT and solid state physics. For quasi-periodic boundary conditions, we calculate the finite size correction to the Hall conductivity. Applications to graphene and similar materials are discussed.
Ginzburg-Landau theory of superconducting surfaces under electric fields
Creators: name: Lipavsky, P.
name: Morawetz, K.
name: Kolacek, J.
name: Yang, T. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Nuclear Theory (nucl-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A boundary condition for the Ginzburg-Landau wave function at surfaces biased by a strong electric field is derived within the de Gennes approach. This condition provides a simple theory of the field effect on the critical temperature of superconducting layers.
description: 4 pages, 1 figure
Debt Financing and Efficiency in Agricultural Firms
Creators: name: Alarcón, Silverio
name: Alarcón, Silverio
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural Finance
subject: Debt financing
subject: Efficiency
subject: Agricultural sector
subject: Nonparametric methods

description: In this work the effects of large- and short-term debts on efficiency are tested on a set of agricultural firms. Accounting data of crop, livestock, mixed and service firms are used. First, the efficiencies of the farms are obtained by using nonparametric methods (input-oriented DEA). Then, in a second stage, censored regressions are run with different kinds of explicative variables, including financial ratios. The results show a significative and positive relationship between short-term indebtedness and efficiency, which would be agree with some theories positing that firms with higher short-run obligations make additional efforts to satisfy their payments, and this leads to an improvement of efficiency.
Reconstruction of Longitudinal Profiles of Ultra-High Energy Cosmic Ray Showers from Fluorescence and Cherenkov Light Measurements
Creators: name: Unger, M.
name: Dawson, B. R.
name: Engel, R.
name: Schüssler, F.
name: Ulrich, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new method for the reconstruction of the longitudinal profile of extensive air showers induced by ultra-high energy cosmic rays. In contrast to the typically considered shower size profile, this method employs directly the ionization energy deposit of the shower particles in the atmosphere. Due to universality of the energy spectra of electrons and positrons, both fluorescence and Cherenkov light can be used simultaneously as signal to infer the shower profile from the detected light. The method is based on an analytic least-square solution for the estimation of the shower profile from the observed light signal. Furthermore, the extrapolation of the observed part of the profile with a Gaisser-Hillas function is discussed and the total statistical uncertainty of shower parameters like total energy and shower maximum is calculated.
description: accepted by NIM A
Constraining dark energy using the cross correlations of weak lensing with post-reionization probes of neutral hydrogen
Creators: name: Dash, Chandrachud B. V.
name: Sarkar, Tapomoy Guha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the prospects of detecting the cross correlation of CMBR weak-lensing convergence field with the large scale tracers of the underlying dark matter distribution in the post-reionization epoch. The cross-correlation is then used to make error projections for dark energy equation of state (EoS)for models with a time evolving dark energy. We study the cross-correlation angular power spectrum of the weak-lensing field with the Lyman-$α$ forest and the redshifted HI 21 cm signal from the post reionization epoch. The angular power spectra is expressed as a line of sight average over the tomographic slices. We find that on using multiple $400$ hrs observation with an extended uGMRT like instrument or with a BOSS like survey with quasar (QSO) density of $16 {\rm deg}^{-2}$ the cross-correlation with weak-lensing convergence field covering half the sky can be detected at a very high SNR ($>20$). The cross-correlation of weak-lensing with Lyman-$α$ forest allows the $1-σ$ errors on the dark energy EoS parameters for different parametrizations to be constrained at a level of precision comparable to combined Planck+SNIa+BAO+HST projections. The 21-cm weak-lensing cross-correlation is found to provide strong constraints on the present value of the dark energy EoS parameter at $4\%$ for the 7CPL model. The constraints on $w_a$ is comparable ($\sim 12\%$) for models other than the 7CPL model. We also find that the CPL parametrization may not be the best constrained parametrization for dark energy evolution. The cross-correlation of CMBR weak-lensing with the post-reionization probes of neutral hydrogen thus holds the potential to give us valuable understanding about the nature of evolving dark energy.
description: Accepted for publication in JCAP
Selected Features of Kentucky Geology from Lexington to Pineville
Creators: name: Southgate, Herbert F.
name: Hopkins, Tommy C.
name: Scott, Gordon D.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1969
Subjects: subject: Transportation Engineering

description: Kentucky has been disturbed by two major catastrophic events. The major portion of the state was upheaved to what is referred to as the Cincinnati Anticline, and erosion has resulted in forming of several physiographic regions, four of which will be traversed on this trip--namely, the Inner Blue Grass region, the Outer Blue Grass region, the Knobs, and the Eastern Coal Fields. The second major catastrophic event was the Appalachian folding, of which the Pine Mountain Overthrust and its faulting affects the southeastern Kentucky area.  The Inner Blue Grass region contains the lowest exposed geologic formation in Kentucky which is the Middle Ordovician exposed in the bluffs of the Kentucky River at Clays Ferry. The limestones of the Middle Ordovician are major sources of the quarry industry, which provides aggregates for the concrete and roadbuilding industries. Rocks of Upper Ordovician, Silurian, and Devonian ages, are exposed in the Outer Blue Grass. The transition from the Outer Blue Grass into the Knobs region can be recognized by a strata of black shale having considerable thickness.  The Knobs region is a ring of hills, mainly exposing Mississippian age materials. This ring is a relatively narrow band compared to the other three major regions.  The Eastern Coal Field is of the Pennsylvanian era and contains numerous coal seams varing widely in thickness. Most of these coal beds have been commercially exploited by tunneling and strip mining methods. Evidence of old strip mining activities can be seen on the upper slopes of the hills starting midway between London and Barbourville. The strip mining activities became more prominent nearer Pineville.  Included herein is a continuous road log of exposed geologic formations visible in roadway cuts and outcrops. Distinctive formations are located by the distance in miles from the starting point. An overall, brief, stratigraphic outline is presented to show the general geological relationships and a detailed columnar section of each of the major physiographic regions is shown.
Background independent quantizations: the scalar field I
Creators: name: Kaminski, Wojciech
name: Lewandowski, Jerzy
name: Bobienski, Marcin
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We are concerned with the issue of quantization of a scalar field in a diffeomorphism invariant manner. We apply the method used in Loop Quantum Gravity. It relies on the specific choice of scalar field variables referred to as the polymer variables. The quantization, in our formulation, amounts to introducing the `quantum' polymer *-star algebra and looking for positive linear functionals, called states. The assumed in our paper homeomorphism invariance allows to determine a complete class of the states. Except one, all of them are new. In this letter we outline the main steps and conclusions, and present the results: the GNS representations, characterization of those states which lead to essentially self adjoint momentum operators (unbounded), identification of the equivalence classes of the representations as well as of the irreducible ones. The algebra and topology of the problem, the derivation, all the technical details and more are contained in the paper-part II.
description: 13 pages, minor corrections were made in the revised version
Baryon-strangeness correlations: a diagnostic of strongly interacting matter
Creators: name: Koch, V.
name: Majumder, A.
name: Randrup, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The correlation between baryon number and strangeness elucidates the nature of strongly interacting matter, such as that formed transiently in high-energy nuclear collisions. This diagnostic can be extracted theoretically from lattice QCD calculations and experimentally from event-by-event fluctuations. The analysis of present lattice results above the critical temperature severely limits the presence of q-qbar bound states, thus supporting a picture of independent (quasi)quarks.
description: 4 pages, 2 eps figures, Revised: several sign typos have been fixed (the PRL version is correct)
Introduction to API access with Excel and Google Sheets
Creators: name: Lee, Yoo Young
Publisher: name: Zenodo
Year: 2021
Subjects: API access

description: In this hands-on workshop, you will learn basic introduction to API access to various library collections and download data to Excel and Google Sheets programmatically. This workshop includes hands-on exercises to access and download data from various sources (e.g., digital collections, academic databases, etc.) with a granular level (e.g., metadata, full-text, etc.).
Quantum Sequential Hypothesis Testing
Creators: name: Martínez-Vargas, Esteban
name: Hirche, Christoph
name: Sentís, Gael
name: Skotiniotis, Michalis
name: Carrizo, Marta
name: Muñoz-Tapia, Ramon
name: Calsamiglia, John
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce sequential analysis in quantum information processing, by focusing on the fundamental task of quantum hypothesis testing. In particular our goal is to discriminate between two arbitrary quantum states with a prescribed error threshold, $ε$, when copies of the states can be required on demand. We obtain ultimate lower bounds on the average number of copies needed to accomplish the task. We give a block-sampling strategy that allows to achieve the lower bound for some classes of states. The bound is optimal in both the symmetric as well as the asymmetric setting in the sense that it requires the least mean number of copies out of all other procedures, including the ones that fix the number of copies ahead of time. For qubit states we derive explicit expressions for the minimum average number of copies and show that a sequential strategy based on fixed local measurements outperforms the best collective measurement on a predetermined number of copies. Whereas for general states the number of copies increases as $\log 1/ε$, for pure states sequential strategies require a finite average number of samples even in the case of perfect discrimination, i.e., $ε=0$.
description: 17 pages, 8 figures
A 3D radiative transfer framework: I. non-local operator splitting and continuum scattering problems
Creators: name: Hauschildt, Peter H.
name: Baron, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a highly flexible framework to solve 3D radiation transfer problems in scattering dominated environments based on a long characteristics piece-wise parabolic formal solution and an operator splitting method. We find that the linear systems are efficiently solved with iterative solvers such as Gauss-Seidel and Jordan techniques. We use a sphere-in-a-box test model to compare the 3D results to 1D solutions in order to assess the accuracy of the method. We have implemented the method for static media, however, it can be used to solve problems in the Eulerian-frame for media with low velocity fields.
description: A&A, in press. 14 pages, 19 figures. Full resolution figures available at ftp://phoenix.hs.uni-hamburg.de/preprints/3DRT_paper1.pdf HTML version (low res figures) at http://hobbes.hs.uni-hamburg.de/~yeti/PAPERS/3drt_paper1/index.html
Lexical elicitation
Creators: name: Skilton, Amalia Horan
name: Zapana Almanza, Hector
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2016
Subjects: Aymara language

description: Wordlists demonstrating uvular effect in morphologically complex words, and with uvular-free words for acoustic purposes (recorded in 51 Dwinelle Hall sound booth)