cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The pentaquark potential, mass and density-density correlator
Creators: name: Alexandrou, C.
name: Koutsou, G.
name: Tsapalis, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the static $qqqq\bar{q}$ potential in the quenched theory at $β=5.8$ and $β=6.0$ on a lattice of size $16^3\times 32$. The mass and density-density correlator for the $Θ^+$ is investigated in the quenched theory at $β=6.0$ on lattices of size $16^3\times 32$, $24^3\times 32$ and $32^3 \times 64$.
description: 3 pages, 7 figures, presented at Lattice2004 (spectrum), Fermilab, June 21-26, 2004. An extra sentence on the evaluation of the errors added, typos corrected
Główne symptomy recesji w gospodarstwach rolnych w świetle załamania koniunktury gospodarczej w latach 2008-2010
Creators: name: Płonka, Aleksandra
name: Paluch, Łukasz
name: Płonka, Aleksandra
name: Paluch, Łukasz
Publisher: name: Unknown
Year: 2015
Subjects: subject: Community/Rural/Urban Development
subject: Production Economics
subject: economic changes in agriculture
subject: recession
subject: small farms

description: In the paper the problem of the influence of economic decline, in particular recession and crisis in Polish agriculture on the functioning of farms was undertook. The major symptoms of recession in agriculture between 2008 and 2010 were identified and their significance for analysed farms was recognized. On the basis of the research results, it was noted that the main and the most important symptom of recession in agriculture, understanding as worse conditions of production, was decrease of income from agriculture. It was also observed, that big farms and economical stronger were more resistant to negative effects of the economic decline.
Information in stock prices and trading volume
Creators: name: Schneider, Jan
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis I develop two theoretical models to analyze how investors can infer private information from market prices and aggregate trading volume. In the first chapter I provide a closed form solution for a rational expectations equilibrium where all investors infer information about the state of the economy from (1) private signals, (2) the market price and (3) aggregate trading volume. The main result of this model is that trading volume reveals the relative quality of the aggregate private information in the economy. Investors use volume to decide how they should weight the market price relative to their own private signals when they update their beliefs. In the second chapter, I assume that investors make individual mistakes when they infer information from the price. I show that in a heterogeneous information economy, bounded rationality on the individual level is observationally equivalent to a psychological bias on the aggregate level. If the investors are not able to infer perfectly the true state of the economy from the price, then the aggregate demand corresponds to the demand of a representative agent who is "underconfident". The underconfidence of the representative agent causes the price to adjust to new information too slowly.
Ekonomiczne uwarunkowania energetyki prosumenckiej na przykładzie mikrobiogazowni rolniczej
Creators: name: Podstawka, Marian
name: Gołasa, Piotr
name: Podstawka, Marian
name: Gołasa, Piotr
Publisher: name: Unknown
Year: 2015
Subjects: subject: Consumer/Household Economics
subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: renewable energy
subject: agricultural biogas plants

description: The aim of the article is to present of economic determinants the functioning of a prosumer biogas plant and prospects of development of this activity. It was found that at current energy prices and a functioning system to support production from renewable energy sources (RES), the investment in the micro biogas plants have little economic justification. The expected payback period exceeding 15 years and the IRR is at 9.81%, even with the optimistic assumption of obtaining a grant to start operations in the amount of 500 000 PLN. The development of micro agricultural biogas plants therefore requires changes in the system to support this type of RES.
Local Simulation Algorithms for Coulombic Interactions
Creators: name: Levrel, L.
name: Alet, F.
name: Rottler, J.
name: Maggs, A. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider dynamically constrained Monte-Carlo dynamics and show that this leads to the generation of long ranged effective interactions. This allows us to construct a local algorithm for the simulation of charged systems without ever having to evaluate pair potentials or solve the Poisson equation. We discuss a simple implementation of a charged lattice gas as well as more elaborate off-lattice versions of the algorithm. There are analogies between our formulation of electrostatics and the bosonic Hubbard model in the phase approximation. Cluster methods developed for this model further improve the efficiency of the electrostatics algorithm.
description: Proceedings Statphys22 10 pages
Ocena znaczenia współpracy z bankiem przy wyborze produktów bankowych przez rolników Pomorza Środkowego
Creators: name: Rosa, Anna
name: Rosa, Anna
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: farmer
subject: banking products and services
subject: cooperation with the bank
subject: Middle Pomerania

description: The main objective of the study is to identify links between long-term cooperation with the bank, and selected hallmarks of farmers from the region of Middle Pomerania. Sets of independent variables were: status and size of the farm, type and value of production, gender, age and education farmer. The study used primary data obtained in the course of empirical studies, carried out with the use of diagnostic survey. In the research problem process multidimensional analysis of correspondence was also used. Based on the results obtained, it can be found that farmers who believe that long-term cooperation with the bank is an important reason when they choosing a bank products and services are over 45 years old, are secondary education and lead to the production of a mixed farm.
Das Erlöschen des Glaubens: The Fate of Belief in the Study of Roman Religion
Creators: name: Mackey, Jacob L.
Publisher: name: PHASIS
Year: 2017

description: This essay traces the development of a consensus against belief as a category relevant to the study of ancient religion, taking Roman religion as a case in point. The anti-belief position began with Christian disparagement of traditional worship and continued with late-20th-century cultural relativism. After dismantling arguments that belief is unique to western cultures, I introduce the cognitive theory of intentionality. On this theory, all mental states represent or are about objects and circumstances in the world. I distinguish two broad mental state types: the practical, such as desire, which represents circumstances as we would have them be, and the doxastic, such as belief, which represents circumstances as we take them to be. Insofar as the Romans represented circumstances as obtaining, they had beliefs. Three payoffs follow from this approach. First, beliefs often underlie emotions, because emotions amount to our evaluations of circumstances we take to obtain. So, when Romans record emotions in connection with religious events, researchers are licensed to ask about the beliefs at the root of those emotions. Second, beliefs (along with practical states) underlie action, because in order to act, agents require a cognitive map of the space of possibilities for action. This is provided in part by belief. So, when Romans record religious action, researchers are licensed to inquire into the beliefs that demarcated the parameters of the action. Finally, in representing objects and circumstances, beliefs represent them in a certain way. This puts beliefs at the foundations of social reality, for it is only by virtue of being represented as a pontifex that any Roman ever counted as a pontifex, and it is only by virtue of being represented as a sacrificium that any act of animal slaughter ever counted as a sacrificium. Thus, far from being an irrelevant category for researchers, belief turns out to be central to Roman religious cognition, religious action, and religious reality.
description: PHASIS, No. 20 (2017)
Network Strategies for the New Economy
Creators: name: Sammut-Bonnici, Tanya
name: McGee, John
Publisher: name: figshare
Year: 2020
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: In this paper we argue that the pace and scale of development in the information and communication technology industries (ICT) has had and continues to have major effects on the industry economics and competitive dynamics generally. We maintain that the size of changes in demand and supply conditions is forcing companies to make significant changes in the way they conceive and implement their strategies. We decompose the ICT industries into four levels, technology standards, supply chains, physical platforms, and consumer networks. The nature of these technologies and their cost characteristics coupled with higher degrees of knowledge specialisation is impelling companies to radical revisions of their attitudes towards cooperation and co-evolution with suppliers and customers. Where interdependencies between customers are particularly strong, we anticipate the possibility of winner-takes-all strategies. In these circumstances industry risks become very high and there will be significant consequences for competitive markets.
Star cluster formation and cloud dispersal by radiative feedback: dependence on metallicity and compactness
Creators: name: Fukushima, Hajime
name: Yajima, Hidenobu
name: Sugimura, Kazuyuki
name: Hosokawa, Takashi
name: Omukai, Kazuyuki
name: Matsumoto, Tomoaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study star cluster formation in various environments with different metallicities and column densities by performing a suite of three-dimensional radiation hydrodynamics simulations. We find that the photoionization feedback from massive stars controls the star formation efficiency (SFE) in a star-forming cloud, and its impact sensitively depends on the gas metallicity $Z$ and initial cloud surface density $Σ$. At $Z=1~Z_{\odot}$, SFE increases as a power law from 0.03 at $Σ= 10~M_{\odot}{\rm pc^{-2}}$ to 0.3 at $Σ= 300~M_{\odot}{\rm pc^{-2}}$. In low-metallicity cases $10^{-2}- 10^{-1} Z_{\odot}$, star clusters form from atomic warm gases because the molecule formation time is not short enough with respect to the cooling or dynamical time. In addition, the whole cloud is disrupted more easily by expanding H{\sc ii} bubbles which have higher temperature owing to less efficient cooling. With smaller dust attenuation, the ionizing radiation feedback from nearby massive stars is stronger and terminate star formation in dense clumps. These effects result in inefficient star formation in low-metallicity environments: the SFE drops by a factor of $\sim 3$ at $Z=10^{-2}~Z_{\odot}$ compared to the results for $Z=1~Z_{\odot}$, regardless of $Σ$. Newborn star clusters are also gravitationally less bound. We further develop a new semi-analytical model that can reproduce the simulation results well, particularly the observed dependencies of the SFEs on the cloud surface densities and metallicities.
description: 17 pages, 13 figures, accepted for publication in MNRAS
Unmasking Hercules: Tracing Comedy in Propertius’ Fourth Book
Creators: name: Kella, Vassiliki
Publisher: name: PHASIS
Year: 2017

description: This paper centers on the ninth elegy of Propertius’ fourth book, remaking a neglected case for a reading as paraclausithyron and establishing a further case for siting it in a comic dramatic frame. The aim is to reveal the importance of the comic background to elegy 4.9, particularly in the paraclausithyron topos and the use of a cross-dressed Hercules. The analysis emphasizes the elegy’s sources in stage comedy and contradicts the more typical claim that 4.9 absorbs Hercules into a specifically elegiac framework. Propertius 4.9, altogether, with its myth of Hercules, serves to acclimate an epic figure into the elegiac world, to explore the fluidity of gender in elegy as well as to access the specifics of comedy and mime as a genre important to Propertian poetics. The survey on paraclausithyron and gender play of transvestism in ancient poetry, shall indicate the relation of theatre with Propertius, who draws elegiac settings within the frame of a theatrical scene, veiling Hercules in the appearance of a comic lover.
description: PHASIS, No. 20 (2017)
The Language of Hardness and Softness in Virgil's Ecl. 10: A Legacy of Gallus?
Creators: name: Gagliardi, Paola
Publisher: name: PHASIS
Year: 2016

description: The analysis of three adjectives (mollis, tener, and durus) in Virgilʹs Ecl. 10 reveals a particular usage which differs from that in the other eclogues. In Ecl. 10, Virgil conforms to an elegiac usage where these adjectives acquire a literary connotation, and when attributed to a person, reflect the elegiac sensibility; such usage is unique in the whole bucolic liber. It gives the poem an elegiac atmosphere which may well reflect imitation of Gallus’ poetry. A comparison with passages of Propertius seems to confirm that the specific occurrences and connotations of these adjectives in Virgilʹs Ecl. 10 originated in Gallus.
description: PHASIS, No. 19 (2016)
Palmyrenes Abroad: Traders and Patrons in Arsacid Mesopotamia
Creators: name: Celentano, Carlo
Publisher: name: PHASIS
Year: 2016

description: This paper tries to investigate one of the most peculiar phenomena of mobility in the ancient world, that is, the emigration of the Palmyrene citizens who left their homeland and moved to some communities of the Arsacid Mesopotamia, creating commercial enclaves in it. We do not know almost anything about the internal organization of those, but surely there was a lower class, composed by merchants, and a higher class, composed by the so‐called trade patrons or trade lords, whose duty was to help traders in their journey. The study is focused on the analysis of the evidences that shows patrons’ and traders’ activities within communities and institutions of Arsacid Mesopotamia. The aim is to understand the behavior pattern and the environmental conditions that enabled Palmyrenes to live and run their business far from home, and in a land ruled by Rome’s archenemy.
description: PHASIS, No. 19 (2016)
Kierunki i skala zmian dochodów rolniczych w krajach Unii Europejskiej w latach 2005-2014
Creators: name: Runowski, Henryk
name: Runowski, Henryk
Publisher: name: Unknown
Year: 2015
Subjects: subject: Consumer/Household Economics
subject: Labor and Human Capital
subject: agricultural income
subject: labor resources in agriculture
subject: trends
subject: European Union countries

description: The article attempts to assess changes in the level of agricultural incomes per full-time working person in the European Union in general and in individual Member States. Previous studies have confirmed a significant role of agricultural incomes in shaping the productive behaviors of agricultural producers. Studies suggest that farmers’ incomes are dependent on many factors, not just the market. An increasing impact on their formation is agricultural policy and political factors. The study confirmed the occurrence of variability of income. They have also shown that under the same external (non-European) conditions, different countries have different directions and scale of changes in the income of the rural population. This means that in the same year in some countries, this revenue increase, in other fell. In most of the Member States, including Poland, in the years 2005-2014 was observed positive long-term trends shaping the agricultural income per full-time working person in agriculture.
Wpływ wybranych czynników społeczno-demografi cznych i ekonomicznych na preferencje i zachowania studentów na rynku produktów mleczarskich.
Creators: name: Jąder, Karolina
name: Jąder, Karolina
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Farm Management
subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: International Development
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Risk and Uncertainty
subject: Teaching/Communication/Extension/Profession
subject: milk
subject: dairy products
subject: students
subject: preferences
subject: sex
subject: place of origin
subject: fi nancial situation

description: The aim of the study was to determine the infl uence of characteristics such as sex, place of origin and fi nancial situation on the preferences and behaviour of students on the dairy products market. The analysis was based on primary data from a survey, conducted among 200 students of the University of Life Sciences in Poznan. It was found that all the characteristics differentiate the behaviour of the students, but the greatest eff ect was observed in the case of sex. Women consume dairy products more often, and when it comes to consumption of milk they choose low-fat products. For women the most important are special off ers and nutrient contents, while male students choose dairy products often guided by their price. The place of origin mainly aff ected the frequency of milk consumption: the respondents, who come from villages and smaller towns declared the most frequent consumption. The fi nancial situation mainly infl uenced the consumption of dairy products: richer students consume more dairy products. When purchasing they pay attention mainly to the taste and brand of the products.
title: Peer Mentoring And Professional Development: A Study Of EFL Teaching In The Middle East
Creators: name: Toner, Sean Vincent
Publisher: name: The Open University
Year: 2004

description: This Middle East-based study enquires how peer mentoring might enhance professional development of EFL teachers and affect student leaming. Research covering 1999 to 2003 developed my intial peer mentoring initiatives of 1997 and 1998.1 adjusted to various professional roles within three settings. I was supervisor of EFL training, from 1997 to 2001, observer of an RSA Celta teacher training course at the British Council, from February to April 2001 ( interacting between September 2001 and May 2003 with some course participants in their first EFL jobs) and from 2001 onward teacher/coordinator of Social Studies in an English - medium international school attempting curriculum change. Mentoring roles varied accordingly. The action research is interventionist and the methodology leans heavily on the ethnographical approach which contains thick description and analysis of questionnaires, interviews, constructed pro-formas and diary notes. As an insider researcher in the three settings, I have been able to follow closely a process of peer mentoring trials. Highlights of the results are that interactive work that draws on the total experience of the teaching staff of an institution can lead to new implementations in the EFUESP classroom and in curriculum development; that 'traditional' mentoring can lead to a 'monologic' process rather than open dialogic learning; that defined curricula, hierarchical management structures and teachers' own natural defensive attitudes create a climate of non-responsiveness to change. Management does not draw on the total experience of teachers. Students, however, seem to value a perceived collaborative stance by teaching staff. Peer mentoring appears to shift the emphasis from a defined body of subject knowledge and one specific training to skill sharing in the workplace and to balancing pedagogic knowledge with subject knowledge and combining strengths offered by non - native - speaking and native - speaking teachers. Peers can also benefit through interactive use of the internet. The research suggests that international schools and EFL institutions become more responsive to the latent dynamism that exists within their staff and that they hire trained peer mentoring facilitators to promote effective collaboration.
Ritual Contexts of the Banqueters with Stringed Instruments in the Western Greek Poleis
Creators: name: Bellia, Angela
Publisher: name: PHASIS
Year: 2016

description: Greek terracottas of male and female players is a valuable subject of investigation for understanding the function of music in the contexts of both production and performance. The figurines are transmitting musical meanings that the ancient observer knew how to decode. Moreover, the representations of musical instruments in coroplastics help us to reconstruct their role in the specific context of worship, and their function in different ritual performances. Among these relevant representations of musical iconography, one of the most popular subjects is the reclining male figure who supports himself on his left elbow, while holding a stringed instrument. This is the typical banqueter motif that is found in funerary and sacred contexts in southern Italy and Sicily from the Archaic period to the beginning of the Hellenistic Age. In this paper, it will be argued that the instruments depicted on the terracotta figurines found in the sanctuaries allow us to understand the status and the age of the musicians, as well as their role in ceremonies.
description: PHASIS, No. 19 (2016)
Multiple Companions to HD 154857 and HD 160691
Creators: name: McCarthy, Chris
name: Butler, R. Paul
name: Tinney, C. G.
name: Jones, Hugh R. A.
name: Marcy, Geoffrey W.
name: Carter, Brad
name: Penny, Alan J.
name: Fischer, Debra A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Precise Doppler measurements from the AAT/UCLES spectrometer reveal two companions to both HD 154857 and HD 160691. The inner companion to HD 154857 has a period of 398 d, an eccentricity of 0.51, and a minimum mass of 1.8 M_Jupiter An outer companion has a period much longer than 2 years and is currently detected only as a linear trend of 14 m/s per year. The inner companion to HD 160691, previously announced from AAT data, has a period of 645 d, an eccentricity of 0.20, and a minimum mass of 1.7 M_Jupiter. For the outer planet, whose orbit is less well constrained, a two Keplerian fit yields a period of 8.2 yr, an eccentricity of 0.57, and a minimum mass of 3.1 M_Jupiter. With these orbital parameters, its maximum separation from the star of 0.4 arcsec makes it a viable target for direct imaging.
description: 7 pages text, 5 Figures, 3 tables. Total size: 19 pages. Accepted for Dec 10 2004 ApJ. Also available at: http://tauceti.sfsu.edu/~chris/papers/
Principles of Ancient Democracy and Judicial Practices in Ancient Georgia
Creators: name: Gardapkhadze, Ketevan
Publisher: name: PHASIS
Year: 2016

description: Ancient Greece, and later Rome, used to be a source of information for ancient Georgia regarding the principles of judicial practices. This information was reflected in the Georgian Law. The article aims to identify those elements of Georgian judicial practices that exhibit democratic trends to varying degrees and have parallels in the ancient world. The elements in question are to be looked for in the early customary law, which survives in Georgian highlands even nowadays. This form of judicial practice allows for higher degree of direct popular participation and hence, democracy. The paper is focused on mediation, which was part of judicial culture in early times, as well as on such questions of the medieval legal system as appellation, democratically elected jury, legal acts tailored to regional needs, requirements for judges and forms of punishment.
description: PHASIS, No. 19 (2016)
Ultralight scalars in leptonic observables
Creators: name: Escribano, Pablo
name: Vicente, Avelino
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Many new physics scenarios contain ultralight scalars, states which are either exactly massless or much lighter than any other massive particle in the model. Axions and majorons constitute well-motivated examples of this type of particle. In this work, we explore the phenomenology of these states in low-energy leptonic observables. After adopting a model independent approach that includes both scalar and pseudoscalar interactions, we briefly discuss the current limits on the diagonal couplings to charged leptons and consider processes in which the ultralight scalar $ϕ$ is directly produced, such as $μ\to e \, ϕ$, or acts as a mediator, as in $τ\to μμμ$. Contributions to the charged leptons magnetic and electric moments are studied as well.
description: v2: 39 pages, 12 figures, 1 table, additional observables and extended phenomenological discussion
Bezpieczeństwo żywnościowe jako indykator zrównoważonego spożycia.
Creators: name: Kapusta, Franciszek
name: Kapusta, Franciszek
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Farm Management
subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: International Development
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Risk and Uncertainty
subject: Teaching/Communication/Extension/Profession
subject: food security
subject: nutritional intake
subject: nutrients
subject: energy
subject: structure

description: The aim of this study was to: defi ne the concept and types of food security and the conditions for its fulfi llment, as well as to characterize the level of consumption of staple foods in the period 2010–2013, next to assess the economic availability of food and diversifi cation of the Polish community in this regard and fi nally to determine the level of energy consumption, its structure and essential nutrients for diff erent socio-economic groups of households for 2000, 2012 and 2013. The paper is based on scientifi c publications and statistical materials. Food security has been identifi ed in the production and sustainability of the food supply and the level of consumption of basic nutrients. In contrast, there are diffi culties in terms of economic availability of food in some groups of the Polish society
Feasibility Assessment For Practical Continuous Variable Quantum Key Distribution Over The Satellite-to-Earth Channel
Creators: name: Kish, Sebastian
name: Villaseñor, Eduardo
name: Malaney, Robert
name: Mudge, Kerry
name: Grant, Kenneth
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Currently, quantum key distribution (QKD) using continuous variable (CV) technology has only been demonstrated over short-range terrestrial links. Here we attempt to answer whether CV-QKD over the much longer satellite-to-Earth channel is feasible. To this end, we first review the concepts and technologies that will enable CV-QKD over the satellite-to-Earth channels. We then consider, in the infinite key limit, the simplest-to-deploy QKD protocols, the coherent state (CS) QKD protocol with homodyne detection and the CS-QKD protocol with heterodyne detection. We then focus on the CS-QKD protocol with heterodyne detection in the pragmatic setting of finite keys, where complete security against general attacks is known. We pay particular attention to the relevant noise terms in the satellite-to-Earth channel and their impact on the secret key rates. In system set-ups where diffraction dominates losses, we find that the main components of the total excess noise are the intensity fluctuations due to scintillation, and the time-of-arrival fluctuations between signal and local oscillator. We conclude that for a wide range of pragmatic system models, CS-QKD with information-theoretic security in the satellite-to-Earth channel is feasible.
description: 16 pages, 6 figures, 4 tables, Closest to Published Version
Electromagnetic field energy density in artificial microwave materials with negative parameters
Creators: name: Tretyakov, Sergei
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: General relations for the stored reactive field energy density in passive linear artificial microwave materials are established. These relations account for dispersion and absorption effects in these materials, and they are valid also in the regions where the real parts of the material parameters are negative. These relations always give physically sound positive values for the energy density in passive metamaterials. The energy density and field solutions in active metamaterials with non-dispersive negative parameters are also considered. Basic physical limitations on the frequency dispersion of material parameters of artificial passive materials with negative real parts of the effective parameters are discussed. It is shown that field solutions in hypothetical materials with negative and non-dispersive parameters are unstable.
Zmiany w uprawach pomidorów do przetwórstwa w Polsce w kontekście mechanizmu Wspólnej Organizacji Rynku Owoców i Warzyw Unii Europejskiej
Creators: name: Kierczyńska, Sylwia
name: Kierczyńska, Sylwia
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Farm Management
subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: International Development
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Risk and Uncertainty
subject: Teaching/Communication/Extension/Profession
subject: agricultural policy
subject: subsidies
subject: tomatoes for processing

description: The support for the tomatoes’ producers is one of the regulations of common market organization (CMO) for fruits and vegetables in the EU. The aim of this paper was to present the regulations on support for tomatoes processing and to analyse the changes in tomatoes production in Poland after the accession to EU. There was analysed the cultivation area and the production volume of tomatoes cultivated in family farms in Poland, on the background of the support received and the possibility od receiving it. The support for tomatoes production, available till the end of 2007, stimulated the tomatoes production – the cultivation area and the volume of tomatoes harvested – increased. The tomatoes’ producers in Poland did not make the most of the available limits of support in 2004 and 2006. The positive eff ect of this regulation could be increasing the number of producers groups and organizations. After the reform of CMO for fruits and vegetables in 2008, the payments for tomatoes’ producers historical payments and the support was not connected with the current production. The cultivation area of tomatoes decreased and the production did not increase.
Fundamental Properties of the Proton in Light-Front Zero Modes
Creators: name: Ji, Xiangdong
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: For a proton in the infinite momentum frame, its wave function contains a zero-momentum part (light-front zero-modes) originated from the modification of the QCD vacuum in the presence of the valence quarks, exhibiting a light-front long-range order in the quantum state. This ``non-travelling'' component of the proton contributes to its fundamental properties, including the mass and spin, as well as the naive-time-reversal-odd correlations between transverse momentum and spin. The large momentum effective theory (LaMET) provides a theoretical approach to study the physical properties of the proton's zero-mode ``condensate'' through lattice simulations.
description: 5 pages, no figure
Zasoby i produktywność pracy przemysłu spożywczego krajów członkowskich Unii Europejskiej w kontek- ście konkurencyjności sektora
Creators: name: Łukiewska, Katarzyna
name: Łukiewska, Katarzyna
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Farm Management
subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: International Development
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Risk and Uncertainty
subject: Teaching/Communication/Extension/Profession
subject: competitiveness
subject: productivity
subject: clusters
subject: food industry

description: Labour resources are an important factor in competitiveness of the sector. The aim of the study was to evaluate the spatial concentration of labour resources, performance advantages and cost-price advantages that are associated with the work factor in the food industry in the European Union in 2010–2012. The results indicate that the greatest concentration of labour resources exists in Germany, France, Italy and Poland. The biggest performance advantage was observed in the old EU countries, mainly in Ireland, the Netherlands, Belgium and Denmark. Diff erences in labour productivity in the food industry, the new EU countries, in relation to the old member states, are getting smaller. The most signifi cant cost-price advantage was observed in Ireland and the Netherlands, and many of the new EU countries, which compensated for the lack of performance advantages of lower labour costs. These include Poland, Bulgaria, Czech Republic, Latvia, Lithuania, Hungary and Romania.
End-to-end Full Projector Compensation
Creators: name: Huang, Bingyao
name: Sun, Tao
name: Ling, Haibin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Full projector compensation aims to modify a projector input image to compensate for both geometric and photometric disturbance of the projection surface. Traditional methods usually solve the two parts separately and may suffer from suboptimal solutions. In this paper, we propose the first end-to-end differentiable solution, named CompenNeSt++, to solve the two problems jointly. First, we propose a novel geometric correction subnet, named WarpingNet, which is designed with a cascaded coarse-to-fine structure to learn the sampling grid directly from sampling images. Second, we propose a novel photometric compensation subnet, named CompenNeSt, which is designed with a siamese architecture to capture the photometric interactions between the projection surface and the projected images, and to use such information to compensate the geometrically corrected images. By concatenating WarpingNet with CompenNeSt, CompenNeSt++ accomplishes full projector compensation and is end-to-end trainable. Third, to improve practicability, we propose a novel synthetic data-based pre-training strategy to significantly reduce the number of training images and training time. Moreover, we construct the first setup-independent full compensation benchmark to facilitate future studies. In thorough experiments, our method shows clear advantages over prior art with promising compensation quality and meanwhile being practically convenient.
description: Source code: https://github.com/BingyaoHuang/CompenNeSt-plusplus. arXiv admin note: text overlap with arXiv:1908.06246, arXiv:1904.04335
Polski handel zagraniczny produktami rolno-spożywczymi i jego przewaga komparatywna w latach 2008–2013
Creators: name: Marks-Bielska, Renata
name: Lizińska, Wiesława
name: Serocka, Izabela
name: Marks-Bielska, Renata
name: Lizińska, Wiesława
name: Serocka, Izabela
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Farm Management
subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: International Development
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Risk and Uncertainty
subject: Teaching/Communication/Extension/Profession
subject: foreign trade
subject: agri-food products
subject: comparative advantage
subject: Lafay indicator

description: The purpose of the article was to show the directions, values, structure and assessment of comparative advantage of Polish foreign trade in agri-food products. Adopted time range covered the years 2008–2013. The analysis was based on the data from the statistical publications of the Institute of Agricultural and Food Economics and the Central Statistical Offi ce. The results indicate a constant increase in the value of foreign trade in agri-food products, as well as a stable positive balance of foreign trade of these products. In the commodity structure the largest share in the period 2008–2013 were plant products (an average of 55.37% of total exports and 65.08% of total imports). Analysing the changes in the value of Lafay indicator of diff erent types of agri-food products in 2008–2013 decrease can be observed in this ratio in the case of total animal products (–4.24) and a simultaneous increase of the comparative advantage in the export of plant products in total (4,00).
Massless higher spin cubic vertices in flat four dimmensional space
Creators: name: Khabarov, M. V.
name: Zinoviev, Yu. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we construct a number of cubic interaction vertices for massless bosonic and fermionic higher spin fields in flat four dimensional space. First of all, we construct these cubic vertices in AdS_4 space using a so-called Fradkin-Vasiliev approach, which works only for the non-zero cosmological constant. Then we consider a flat limit taking care on all the higher derivative terms which FV-approach generates. We restrict ourselves with the four dimensions because this allows us to use the frame-like multispinor formalism which greatly simplifies all calculations and provides a description for bosons and fermions on equal footing.
description: 21 pages, no figures. Some comments and new references added. Version to appear in JHEP
Microbial nitrogen cycling in permafrost soils: implications for atmospheric chemistry
Creators: name: Horn, Marcus A.
name: Hetz, Stefanie A.
Publisher: name: Berlin : De Gruyter
Year: 2021
Subjects: subject: permafrost
subject: carbon cycle
subject: Arctic
subject: microbial diversity
subject: greenhouse gases
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Superiorized method for metal artifact reduction
Creators: name: Humphries, T.
name: Wang, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Metal artifact reduction (MAR) is a challenging problem in computed tomography (CT) imaging. A popular class of MAR methods replace sinogram measurements that are corrupted by metal with artificial data. While these ``projection completion'' approaches are successful in eliminating severe artifacts, secondary artifacts may be introduced by the artificial data. In this paper, we propose an approach which uses projection completion to generate a prior image, which is then incorporated into an iterative reconstruction algorithm based on the superiorization framework. The prior image is reconstructed using normalized metal artifact reduction (NMAR), a popular projection completion approach. The iterative algorithm is a modified version of the simultaneous algebraic reconstruction technique (SART), which reduces artifacts by incorporating a polyenergetic forward model, least-squares weighting, and superiorization. The penalty function used for superiorization is a weighted average between a total variation (TV) term and a term promoting similarity with the prior image, similar to penalty functions used in prior image constrained compressive sensing. Because the prior is largely free of severe metal artifacts, these artifacts are discouraged from arising during iterative reconstruction; additionally, because the iterative approach uses the original projection data, it is able to recover information that is lost during the NMAR process. We perform numerical experiments modeling a simple geometric object, as well as several more realistic scenarios such as metal pins, bilateral hip implants, and dental fillings placed within an anatomical phantom. The proposed iterative algorithm is largely successful at eliminating severe metal artifacts as well as secondary artifacts introduced by the NMAR process, especially lost edges of bone structures in the neighborhood of the metal regions.
description: 29 pages, five figures
Does Reactor Neutrino Experiment Play an Important Role in Theta_{13} of Lepton Mixing (PMNS) Matrix ?
Creators: name: Liu, Q. Y.
name: Deng, J.
name: Chen, B. L.
name: Yang, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Reactor neutrinos play an important role in determining parameter theta_{13} in the lepton mixing (PMNS) matrix. A next important step on measuring PMNS matrix could be to build another reactor neutrino experiment, for example, DaYa bay in China, to search the possible oscillations via sin^2 (2theta_{13}) and Delta m^2_{13}. We consider 4 different schemes for positions of three 8-ton detectors of this experiment, and simulate the results with respect to an array of assumed ''true'' values of physics parameters. Using three kinds of analysis method, we suggest a best scheme for this experiment which is to place a detector 2200m ~ 2500m symmetrically away from two reactors, and to put the other two detectors closer to their corresponding reactors respectively, almost at a 100m ~ 200m distance. Moreover, with conservative assumption on the experimental technique, we construct series of allowed regions from our simulation results, and give detailed explanations therein.
description: 33 pages, 11 eps figures, uses tcilatex.tex