cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
STRUKTUR UND POTENTIALE DES AGRARAUSSENHANDELS MITTEL- UND OSTEUROPAS
Creators: name: Fock, Achim
name: Ledebur, Oliver Von
name: Fock, Achim
name: Ledebur, Oliver Von
Publisher: name: Unknown
Year: 1998
Subjects: International Relations/Trade

description: This paper analyzes agricultural trade developments in the Central and Eastern European countries (CEEC) since the beginning of the transformation process, and estimates CEEC agricultural trade potentials. The competitiveness of the agricultural sector as a whole is quantified using revealed comparative advantage indices. These indicate a comparative advantage for the CEEC in the agricultural sector. This strength is likely to accelerate CEEC agricultural trade growth which started in 1993. Such a development could yield in high political pressure since some of the countries of the first EU accession round like Hungary or the Czech Republic show a high complementarity in their agricultural trade with EU. Some basic factors such as income, population and agricultural land can explain agricultural trade potentials. This could be shown using a gravity model, which reveals the significance and direction of the variables mentioned and others such as distance and membership of regional blocs. The gravity model is then used to roughly estimate the long-term trade potentials of trade between the CEEC and the EU. Export potentials are relatively high, whereas agricultural imports are likely to increase only in an EU accession scenario.
Comments on Axions, Domain Walls, and Cosmic Strings
Creators: name: Dine, Michael
name: Fernandez, Nicolas
name: Ghalsasi, Akshay
name: Patel, Hiren H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Axions have for some time been considered a plausible candidate for dark matter. They can be produced through misalignment, but it has been argued that when inflation occurs before a Peccei-Quinn transition, appreciable production can result from cosmic strings. This has been the subject of extensive simulations. But there are reasons to be skeptical about the possible role of axion strings. We review and elaborate on these questions, and argue that parametrically strings are already accounted for by the assumption of random misalignment angles. We review and elaborate on these questions, and provide several qualitative arguments that parametrically strings are already accounted for by the assumption of random misalignment angles. The arguments are base on considerations of the collective modes of the string solutions, on computations of axion radiation in particular models, and reviews of simulations.
description: 31 pages, 3 figures; published version
$f^{-γ}$ Current Fluctuations in Organic Semiconductors: Evidence for Percolation
Creators: name: Carbone, A.
name: Kotowska, B. K.
name: Kotowski, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The $f^{-γ}$ sloped current noise power spectra, observed in organic semiconductors, have been interpreted within a {\em variable range hopping} mechanism of the fluctuations. The relative current noise power spectral density ${\cal S}(f)=S_I(f)/I^2$ exhibits a maximum at the {\em trap-filling transition} between the {\em ohmic} and the {\em space-charge-limited-current} regime [Phys. Rev. Lett., {\bf 95}, 236601, 2005]. Here, we discuss the electronic conditions determining the crossover from ohmic to space-charge-limited transport. These arguments shed further light on the need to adopt a {\em percolative} fluctuation picture to account for the competition between insulating and conductive phases coexisting at the {\em transition}, where small changes in the external bias lead to dramatic effects in the fluctuations.
description: 11 pages, 2 figures, to appear on European Physical Journal B
ENTWICKLUNG DES TSCHECHISCHEN ZUCKERSEKTORS SEIT 1989
Creators: name: Bavorova, Miroslava
name: Bavorova, Miroslava
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Czech Republic
subject: sugar industry
subject: sugar market
subject: agricultural policy
subject: competitiveness

description: The breakdown of the planned economy in the Czech Republic induced many changes for the Czech sugar industry. Successful restructuring should foster competitiveness of sugar production and processing. Another target of the sugar sector is its preparation for EU-accession by adjusting to EU market regulations. Consequently, the liberal sugar market policy which was introduced shortly after 1989 was transferred into a system with price and quantity control. Today, this policy differs only in degree from EU market policy. The processes of privatization, restructuring and modernization have been conducted successfully in the nineties. International investors made significant contributions, especially by investing in sugar processing. Despite of a favorable development of the sugar industry competitiveness on the world market couldn't be achieved, yet. Thus, the existence of the sugar industry in Czech, like in all EU countries as well, will depend on the prolongation of protective measures in market regulations for sugar.
Excitonic condensation in quasi-two-dimensional systems
Creators: name: Crisan, M.
name: Tifrea, I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a low energy model for the Bose-Einstein condensation in a quasi-two-dimensional excitonic gas. Using the flow equations of the Renormalization group and a $Φ^4$ model with the dynamical critical exponent $z=2$ we calculate the temperature dependence of the critical density, coherence length, magnetic susceptibility, and specific heat. The model can be relevant for the macroscopic coherence observed in GaAs/AlGaAs coupled quantum wells.
description: 4 Revtex pages
Effects of Trichostatin A on drug uptake transporters in primary rat hepatocyte cultures
Creators: name: Ramboer, Eva
name: Rogiers, Vera
name: Vanhaecke, Tamara
name: Vinken, Mathieu
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: epigenetics
subject: Trichostatin A
subject: drug transporters
subject: primary hepatocyte culture
subject: 610

description: The present study was set up to investigate the effects of Trichostatin A (TSA), a prototypical epigenetic modifier, on the expression and activity of hepatic drug uptake transporters in primary cultured rat hepatocytes. To this end, the expression of the sinusoidal transporters sodium-dependent taurocholate cotransporting polypeptide (Ntcp) and organic anion transporting polypeptide 4 (Oatp4) was monitored by real-time quantitative reverse transcriptase polymerase chain reaction analysis and immunoblotting. The activity of the uptake transporters was analyzed using radiolabeled substrates and chemical inhibitors. Downregulation of the expression and activity of Oatp4 and Ntcp was observed as a function of the cultivation time and could not be counteracted by TSA. In conclusion, the epigenetic modifier TSA does not seem to exert a positive effect on the expression and activity of the investigated uptake transporters in primary rat hepatocyte cultures.
description: EXCLI Journal;Vol. 14, 2015
KNN Classification with One-step Computation
Creators: name: Zhang, Shichao
name: Li, Jiaye
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: KNN classification is an improvisational learning mode, in which they are carried out only when a test data is predicted that set a suitable K value and search the K nearest neighbors from the whole training sample space, referred them to the lazy part of KNN classification. This lazy part has been the bottleneck problem of applying KNN classification due to the complete search of K nearest neighbors. In this paper, a one-step computation is proposed to replace the lazy part of KNN classification. The one-step computation actually transforms the lazy part to a matrix computation as follows. Given a test data, training samples are first applied to fit the test data with the least squares loss function. And then, a relationship matrix is generated by weighting all training samples according to their influence on the test data. Finally, a group lasso is employed to perform sparse learning of the relationship matrix. In this way, setting K value and searching K nearest neighbors are both integrated to a unified computation. In addition, a new classification rule is proposed for improving the performance of one-step KNN classification. The proposed approach is experimentally evaluated, and demonstrated that the one-step KNN classification is efficient and promising
description: 13 pages. in IEEE Transactions on Knowledge and Data Engineering
STRUKTURWANDEL IM BALTISCHEN LEBENSMITTELHANDEL
Creators: name: Kielyte, Julda
name: Kielyte, Julda
Publisher: name: Unknown
Year: 2001
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Food retailing and wholesaling
subject: Baltic States
subject: Structural Changes
subject: Transition

description: In the centrally planned economy of the former Soviet Union, retail and wholesale trade were very much neglected. Since the beginning of transition the share of trade has increased considerably both in terms of its contribution to national product and employment. This paper analyses the structural development in the food retail sector of the Baltic states since the beginning of transition. It focuses mainly on the organisational changes, and change of the forms of enterprises as well as on changes in market structure in the Baltic food retail trade. The transformation of the economy has resulted in substantial changes in the Baltic food retail sector. At the beginning of reformation privatisation and establishment of numerous new forms has led to fragmentation in the food retail trade. Easy divisibility of trade enterprises included into privatisations as well as the lack of capital for new entrepreneurs are the major reason for the creation of mostly small (family) enterprises. However, from 1996 an increased tendency to concentration can be observed. Competition on the Baltic food market has intensified due to the modernisation of innovative domestic enterprises and appearance of western trading organisations. The dynamics of the competition becomes obvious by numerous market entrances (western trade concerns) and exits (of unprofitable domestic enterprises) as well as by an increased concentration of larger enterprises. This development allows to expect an efficiency increase in the Baltic food trade.
Bulge evolution in face-on spirals and low surface brightness galaxies
Creators: name: Galaz, Gaspar
name: Villalobos, Alvaro
name: Infante, Leopoldo
name: Donzelli, Carlos
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is an observational fact that bulges of spiral galaxies contain a high fraction of old and metal-rich stars. Following this observational fact, we have investigated colors of 21 bulges hosted by a selected sample of high surface brightness spirals and low surface brightness galaxies observed in B and R optical bands and in J and Ks near-IR bands. Using structural parameters derived from these observations we obtain evidence that bulges could be formed by pure disk evolution (secular evolution), in agreement with the suggestion by some authors. The color profiles, especially the near-IR ones show null or almost null color gradients, supporting the hypothesis that the disk stellar populations are similar to those present in the bulge, and/or some bulges can be understood as disks with enhanced stellar density (or pseudobulges). In the optical, half of the galaxies present an inverse color gradient, giving additional evidence in favor of secular evolution for the sample investigated. The comparison of the observed colors with those obtained from spectrophotometric models of galaxy evolution suggests that bulges of the selected sample have solar and subsolar metallicity, and are independent of the current stellar formation rate. Also, we obtain evidence suggesting that galaxies hosting small bulges tend to be systematically metal poor compared to those with larger bulges. These results are being checked more carefully with high S/N spectroscopy.
description: 30 pages, 14 figures. Accepted in the Astronomical Journal. All figures only available at http://www.astro.puc.cl/~ggalaz/figures.html
MARKTINTEGRATION UND LANDWIRTSCHAFTLICHE ENTWICKLUNG: LEHREN AUS DER WIRTSCHAFTSGESCHICHTE UND ENTWICKLUNGSÖKONOMIE FÜR DEN RUSSISCHEN GETREIDEMARKT IM TRANSFORMATIONSPROZESS
Creators: name: Kopsidis, Michael
name: Kopsidis, Michael
Publisher: name: Unknown
Year: 1997
Subjects: Political Economy

description: From 1990 to 1994 the economic and political process of disintegration within the Russian Federation halved the domestic trade of grain between the various regions and caused significant reductions in the production. From European economic history and the experience of several developing countries follows that there is a strong correlation between the formation of domestic markets and sustainable growth in agricultural output. During the process of developing highly integrated agricultural domestic markets many European economies and Third World countries had to struggle with problems, similar to those of the Russian Federation. An investigation of completed market-oriented transition processes can help to find strategies to remedy the existing difficulties and ease understanding the highly complex integration processes. It becomes evident that economic reforms (Ordnungspolitik) and a deregulation of the agricultural trade can only generate positive effects on agricultural production if the infrastructure is greatly improved. Such reforms and an overall modernization of the infrastructure can however only be implemented if the central power can establish a consistent market conform economic and agricultural policy all over Russia despite particularistic and market hostile tendencies in many oblasts and republics. Since the development of private marketing institutions covering great geographical areas is based on economically potent agglomerations, the growing supply of these important markets with imports is no constructive contribution to the development of domestic market structures in Russia. At the same time it becomes obvious that the main obstacle to the formation of an efficient domestic market is caused by the unwillingness to implement reforms in all parts of the Russian agricultural sector and not by foreign influences.
Εταιρική κοινωνική ευθύνη & βαθμοί πιστοληπτικής ικανότητας
Creators: name: Τραυλός, Αριστοφάνης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Εταιρική κοινωνική ευθύνη
subject: ESG performance
subject: Βαθμοί πιστοληπτικής ικανότητας
subject: Οίκοι αξιολόγησης

description: Στο περιβάλλον της παγκοσμιοποιημένης οικονομίας, η οποία χαρακτηρίζεται από ασύμμετρη πληροφόρηση οι επιχειρήσεις, έχει αποδειχθεί, ότι κατέχουν κυρίαρχο ρόλο ως αναφορά την επιρροή που ασκούν στην κοινωνία και στην οικονομία σαν σύνολο. Σε αυτό το περιβάλλον μεγάλη προσοχή έχει στραφεί στον ρόλο της επιχείρησης ως κοινωνικά υπεύθυνη και στα οφέλη τα οποία μπορεί να αποκομίσει. Οι επιχειρήσεις διαμορφώνουν διοικητικά σχέδια που ενσωματώνουν όλο και περισσότερο την εταιρική κοινωνική ευθύνη στις λειτουργικές τους διεργασίες. Αυτά τα οφέλη προσπαθούν να τα μεταφέρουν στους βαθμούς πιστοληπτικής ικανότητας οι οίκοι αξιολόγησης με σκοπό την παροχή φερέγγυας πληροφόρησης στην αγορά αλλά και την προστασία των επενδυτών από επικίνδυνες επενδυτικές αποφάσεις. Στόχος αυτής της διπλωματικής είναι να διερευνήσει την επιρροή που έχει η εταιρική κοινωνική ευθύνη στους βαθμούς πιστοληπτικής ικανότητας των επιχειρήσεων σαν μονάδα αλλά και η σημαντικότητα που δίνεται από τους οίκους αξιολόγησης σε αυτήν την επίδραση για κάθε κλάδο. Η μελέτη διεξάγεται τη χρονική περίοδο 2007 έως 2017. Αναμένεται ότι η εταιρική κοινωνική ευθύνη θα επηρεάζει θετικά τις βαθμολογίες πιστοληπτικής ικανότητας των εταιρειών ενώ οι κλάδοι με την μεγαλύτερη ESG επίδοση θα είναι βιομηχανίες παραγωγής ενέργειας και βιομηχανίες παραγωγής πρώτων υλών.
ERGEBNISSE EINES VERGLEICHS VON RECHTSFORMEN LANDWIRTSCHAFTLICHER UNTERNEHMEN IN MITTEL- UND OSTEUROPÄISCHEN LÄNDERN
Creators: name: Schulze, Eberhard
name: Netzband, Claudia
name: Schulze, Eberhard
name: Netzband, Claudia
Publisher: name: Unknown
Year: 1998
Subjects: Farm Management
Political Economy

description: The objective of this analysis was to gain an insight into the following issues: which legal forms of agricultural enterprises have emerged in the transition process; what share they have in agricultural land; what their characteristics are; whether taxation has played a role in the choice of legal form. The report shows which legal forms of agricultural enterprises have developed in the countries studied, whether they are natural persons or legal persons, and the number of charter members and the minimum capital required. The paper also presents findings on liability and contingent liability to put up further capital, business management and auditing, profit sharing, the legal obligation to keep accounts, and other issues. The number of enterprises with relatively high minimum capital for a specific legal form is rather small; this indicates its impact on the choice of legal form. As could be expected, taxation varies between countries. In order to assess the impact of taxation on the competitiveness of agricultural enterprises in different countries, it would therefore be useful to calculate the tax burden for specific forms of enterprises that have the same factor endowment and the same type of production. Within countries, taxation of all legal forms of enterprise is very similar or identical for trade tax, capital tax, real property tax and value added tax. Agricultural enterprises and some natural persons generally do not pay corporate income tax, but income tax for natural persons instead. In the area of capital gains taxation, there are also differences between natural and legal persons. Since most enterprises are either agricultural cooperatives or corporations (and only few of them partnerships), one can conclude that taxation has had very little impact, or none at all, on the choice of legal form. As has been shown in previous publications, the decisions made by individual enterprises were mainly influenced by political, ideological and partly also economic conditions during the initial break-up of the communist bloc. Taxation played only a minor role then, but it may have an increasingly large impact on the choice of legal form in the future.
Mode-Coupling Theory for Tagged-Particle Motion of Active Brownian Particles
Creators: name: Reichert, Julian
name: Mandal, Suvendu
name: Voigtmann, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We derive a mode-coupling theory (MCT) to describe the dynamics of tracer particles in dense systems of active Brownian particles (ABPs) in two spatial dimensions. The ABP undergo translational and rotational Brownian dynamics, and are equipped with a fixed self-propulsion speed along their orientational vector that describes their active motility. The resulting equations of motion for the tagged-particle density correlation functions describe the various cases of tracer dynamics close to the glass transition: that of a passive colloidal particle in a suspension of ABP, that of a single active particle in a glass-forming passive host suspensions, and that of active tracers in a bath of active particles. Numerical results are presented for these cases assuming hard-sphere interactions among the particles. The qualitative and quantitative accuracy of the theory is tested against event-driven Brownian dynamics (ED-BD) simulations of active and passive hard disks. Simulation and theory are found in quantitative agreement, provided one adjusts the overall density (as known from the passive description of glassy dynamics), and allows for a rescaling of self-propulsion velocities in the active host system. These adjustments account for the fact that ABP-MCT generally overestimates the tendency for kinetic arrest. We also confirm in the simulations a peculiar feature of the transient and stationary dynamical density correlation functions regarding their lack of symmetry under time reversal, demonstrating the non-equilibrium nature of the system and how it manifests itself in the theory.
EINFLUSSFAKTOREN AUF GEWINN UND RENTABILITÄT LANDWIRTSCHAFTLICHER GROßBETRIEBE GEBIET OMSK, RUSSLAND
Creators: name: Schulze, Eberhard
name: Tillack, Peter
name: Patlassov, Oleg
name: Schulze, Eberhard
name: Tillack, Peter
name: Patlassov, Oleg
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Large-scale Farms
subject: profitability
subject: debts
subject: Q047

description: The Discussion Paper 39 represents the results of an analysis for determining influencing factors on profits and profitability of Russian enterprises in the region of Omsk. Based on the final yearly reports of the enterprises it is shown, that in Russia five earning ratios can be distinguished: the gross profit, the profit on sales, the profit before taxes, the profit on ordinary activity, and the net profit. The gross profit and the profit on sales are similar for all tested enterprises. Therefore, in this article only the gross profit, or the profitability of the gross profit are discussed. For the year 2000, the average profitability of the gross profit of the examined enterprises amounted to 2,0%. The profitability on the basis of the profit before taxes was 6,4%, the profitability of the profit on ordinary activity -9,8%, and the profitability of the net profit amounted to -16,0%. When compared with the profit before taxes, the reduced profit on ordinary activity is caused by taxes and similar tributes which are notably higher than the governmental subsidies granted to the enterprises. The extremely low profitability rate of -16% based on the net profit is additionally influenced by extraordinary tributes, caused by locusts in this case. However, if the enterprises would not have costs for supporting the households, and if the government would assume the costs for the social infrastructure of the village, a duty it is in charge of by law, all four earning ratios would be positive: 26,4%; 31,8%; 11,8%; 4,1% respectively. The regression analyses show that the earning and the profitability ratios are positively influenced by the material factors fuel consumption, number of cows and milking performance per cow and year. In contrast, the number of tractors and, for net profit, the number of permanent employees have a negative effect on these parameters. The regression analyses based on financial factors demonstrate the significant positive or respectively negative influence of the proceeds and the costs. Furthermore, there are veritable positive effects of subsidies and negative influences of taxes and extraordinary tributes. Detailed consideration of costs shows that material usage have positive, and amortisation and remuneration of work negative effects. As particularly shown by the factor and cluster analyses, the profits decline with increasing grassland and forest area.
AUSWIRKUNGEN DER EU-OSTERWEITERUNG IM AGRARBEREICH
Creators: name: Frohberg, Klaus
name: Weber, Gerald
name: Frohberg, Klaus
name: Weber, Gerald
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: EU-Eastenlargement
subject: EU-Budget
subject: Sector Modelling
subject: Agricultural Sector
subject: Partial Equilibrium Model
subject: Policy Analyses
subject: C69
subject: Q18

description: The East-Enlargement of the EU raises several questions regarding the EU-budget. This holds for both policy areas for which financial transfers are made out of the EU budget; the structural policies and the Common Agricultural Policy (CAP). This paper focuses on the impact of implementing the CAP as specified in the Agenda 2000 in the 10 Central and Eastern European candidate countries. The analysis shows that about 8 Bill. Euro will have to be transferred for the main types of payments out of the EU budget to the new members. The larger part of these financial transfers will be direct payments and not measures for market support. It also becomes evident that these expenditures are quite unequally distributed among the candidate countries if one calculates them per hectare or per person working in agriculture. In addition, in comparison to the EU-15 they are substantially lower. It is rather difficult to say how of the direct payments will remain with the farmer and what share is going to be transferred to the land lessors. Since in some of the candidate countries, leased land holds a large share of total cultivated land this question is important for transfer efficiency. The overall expenditures to be paid from the EU-budget in relation to the CAP are higher than what is shown here since not all types of payments considered in the analysis. This holds for outlays for administrative purposes as well for commodities such as wine, olive oil, fruits, vegetable, tobacco and mutton.
Recent Progress in Parton Distributions and Implications for LHC Physics
Creators: name: Thorne, R. S.
name: Martin, A. D.
name: Roberts, R. G.
name: Stirling, W. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I outline some of the most recent developments on the global fit to parton distributions performed by the MRST collaboration.
description: 6 pages, 7 figures. To appear in proceedings of XIII International Workshop on Deep Inelastic Scattering, April,27 - May,1, 2005, Madison, Wisconsin, USA
Εργασιακό στρες και διατροφικές διαταραχές
Creators: name: Μαραγκού, Μαρία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Στρες
subject: Εργασιακό στρες
subject: Διατροφικές διαταραχές

description: Το στρες αποτελεί αναπόσπαστο κομμάτι της εργασιακής ζωής, ωστόσο όταν η ποιότητα και η ποσότητα ξεφύγουν από τα φυσιολογικά όρια η επιρροή του στον ανθρώπινο οργανισμό είναι αρνητική. Προσπάθειες συσχέτισης του εργασιακού στρες με τις διατροφικές διαταραχές έχουν ξεκινήσει. Κύριοι στόχοι της συγκεκριμένης εργασίας είναι α) ο προσδιορισμός και η ανάλυση των όρων στρες, εργασιακό στρες και διατροφικές διαταραχές, β) η επίδραση που έχει το εργασιακό στρες σε αυξημένα επίπεδα στις διατροφικές συνήθειες των εργαζομένων, γ) η ευαισθητοποίηση και η κινητοποίηση των εργοδοτών και των εργαζομένων για την πρόληψη αλλά και τη δημιουργία ενός παραγωγικού μοντέλου εργασίας. Στο ερευνητικό μέρος δημιουργήθηκε ηλεκτρονικό ερωτηματολόγιο βασισμένο σε δύο κλίμακες. Συλλέχθηκε δείγμα από εργαζομένους του δημοσίου και ιδιωτικού τομέα, το οποίο κωδικοποιήθηκε και χρησιμοποιήθηκε σε στατιστική ανάλυση με το πρόγραμμα SPSS. Έγινε χρήση του στατιστικού ελέγχου Cronbach’s Alpha για την αξιοπιστία των κλιμάκων, καθώς και Pearson Correlation για τις συσχετίσεις μεταξύ των μεταβλητών. Τα αποτελέσματα παρουσιάζουν σημαντική συσχέτιση του εργασιακού στρες και της διατροφικής συμπεριφοράς των εργαζομένων. Κυρίως σε έντονα φορτισμένες καταστάσεις τα άτομα φαίνεται να χάνουν τον έλεγχο των διατροφικών τους επιλογών.
"Obdachlos sein ist teuer"
Creators: name: Voss, Jeronimo
Publisher: name: Reflektor Monde gUG
Year: 2021

description: EIN INTERVIEW MIT MICHAEL, EINEM VERKÄUFER VON ARTS OF THE WORKING CLASS IN FRANKFURT AM MAIN, UND EIN KOMMENTAR ZUR MEDIENBERICHTERSTATTUNG ÜBER DAS FRANKFURTER BAHNHOFSVIERTEL.
Prostate cancer and glutathione S-transferase deletions
Creators: name: Malik, Saima Shakil
name: Masood, Nosheen
name: Yasmin, Azra
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: GSTM1
subject: GSTT1
subject: polymerase chain reaction (PCR)
subject: prostate cancer
subject: 610

description: GSTM1 and GSTT1 gene polymorphisms have been studied in many populations to evaluate their association with prostate cancer risk with contrasting results. The current study was aimed to find out the association of GSTM1 and GSTT1 gene polymorphisms with prostate cancer in Pakistani men. This case control study included pathologically confirmed prostate cancer patients and age matched male controls. Epidemiological data was collected by a standard questionnaire and presence or absence of GSTM1 and GSTT1 gene was observed by multiplex PCR using CYP1A1 as housekeeping gene. Prostate cancer was more prevalent in age of >60 years and most of the patients were at stage IV (70 %) and have undergone surgery. Family history of cancer, smoking, metastasis and surgery were found to be significant (P<0.05) risk factors in prostate cancer development. Gleason score 7 was most prevalent (40.5 %) in prostate cancer patients. Source of drinking water, residential area, occupation, eating habits and number of family members had no association (P>0.05) with prostate cancer risk. No significant association was found when comparing GSTM1 (OR=0.78) and GSTT1 (OR=0.89) gene deletions with prostate cancer risk. Smoking and TNM staging were also not associated with deletion of GSTM1 and GSTT1 genes. Comparison of dual null deletion of both genes with prostate cancer also showed nonsignificant associations. Deletion of GSTM1 gene at stage IV prostate cancer patients was significantly higher compared with other stages of cancer while no significance was shown by GSTT1 gene deletion. GSTM1, GSTT1 and deletion of both GSTM1 and GSTT1 genes do not contribute towards increased risk of prostate cancer in Pakistani population.
description: EXCLI Journal;Vol. 14, 2015
[Brev til DKNVS]
Creators: name: Lange, Christian Christoph A.
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1843

description: Oversender en innberetning om sin reise samt noen tegninger av Utstein Kloster, Halsnøy kloster og Lungegården i Bergen
A two-dimensional electrodynamical outer gap model for gamma-ray pulsars: Gamma-ray spectrum
Creators: name: Takata, J.
name: Shibata, S.
name: Hirotani, K.
name: Chang, H. -K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A two-dimensional electrodynamical model is used to study particle acceleration in the outer magnetosphere of a pulsar. The charge depletion from the Goldreich-Julian charge density causes a large electric field along the magnetic field lines. The charge particles are accelerated by the electric field and emit $γ$-rays via the curvature process. Some of the emitted $γ$-rays may collide with $X$-ray photons to make new pairs, which are accelerated again on the different field lines in the gap and proceed similar processes. We simulate the pair creation cascade in the meridional plane using the pair creation mean-free path, in which the $X$-ray photon number density is proportional to inverse square of radial distance. With the space charge density determined by the pair creation simulation, we solve the electric structure of the outer gap in the meridional plane and calculate the curvature spectrum. Because the two-dimensional model can link both gap width along the magnetic field line and trans-field thickness with the spectral cut-off energy and flux, we can diagnose both the current through the gap and inclination angle between the rotational and magnetic axes. We apply the theory to the Vela pulsar. By comparing the results with the $EGRET$ data, we rule out any cases that have a large particle injection at the outer boundary. We also suggest the inclination angle of $α_{inc}\geq65^{\circ}$. The present model predicts the outer gap starting from near the conventional null charge surface for the Vela pulsar.
description: 39 pages, 12 figures. Accepted for publication in MNRAS
Can bacterium UD1023 lessen the uptake and bioaccumulation of heavy metals in plants? An update
Creators: name: Niaz, Kamal
name: Maqbool, Faheem
name: Bahadar, Haji
name: Abdollahi, Mohammad
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: 610

description: EXCLI Journal;Vol. 15, 2016
Ταξινόμηση αποθεμάτων με την μέθοδο ABC, εμπειρική περίπτωση του ΟΤΕ
Creators: name: Παπαποστόλου, Άγγελος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Activity Based Costing (ABC)
subject: Οργανισμός Τηλεπικοινωνιών Ελλάδος
subject: Εφοδιαστική αλυσίδα
subject: Διαχείριση αποθεμάτων

description: Η παρούσα διπλωματική εργασία έχει ως θέμα τη μελέτη της χρησιμότητας της Εφοδιαστικής και συγκεκριμένα του συστήματος Activity Based Costing(ABC), στον Οργανισμό Τηλεπικοινωνιών Ελλάδος(ΟΤΕ). Κύριος στόχος της μελέτης αυτής είναι η ταξινόμηση των αποθεμάτων της Εφοδιαστικής του ΟΤΕ μέσω του συστήματος ταξινόμησης ABC, γνωστό και ως ανάλυση κατά Pareto. Η ταξινόμηση αυτή είναι ενδεικτική καθώς ο ΟΤΕ έχει πάνω από 1000 κωδικούς και για την συγκεκριμένη μελέτη συλλέχθηκαν 30 κωδικοί υλικών με κριτήρια την ποσότητα και την τιμή τους μέσα στην εταιρεία, έτσι ώστε να αντιπροσωπεύουν την γενική εικόνα της εφοδιαστικής αλυσίδας του ΟΤΕ. Μετά την από την αναφορά των γενικών ορισμών του κλάδου της Εφοδιαστικής, την παρουσίαση της εικόνας του ΟΤΕ στο αντικείμενο αυτό αλλά και της θεωρίας της ανάλυσης κατά Pareto, πραγματοποιείται η ταξινόμηση αυτών των 30 κωδικών μέσα από χρήση πινάκων στο πρόγραμμα Microsoft Excel. Τέλος, η μελέτη ολοκληρώνεται τα συμπεράσματα που προκύπτουν για τον ΟΤΕ, διαπιστώνοντας σαφή οφέλη ως προς την εικόνα της εταιρίας για τα αποθέματα, τη διατήρηση της αποτελεσματικότητας και της ανταγωνιστικότητας καθώς και σαφή πλεονεκτήματα για τον καλύτερο μελλοντικό σχεδιασμό του Ομίλου.
Relaxing Constraints on Inflation Models with Curvaton
Creators: name: Moroi, Takeo
name: Takahashi, Tomo
name: Toyoda, Yoshikazu
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the effects of the curvaton, late-decaying scalar condensation, to observational constraints on inflation models. From current observations of cosmic density fluctuations, severe constraints on some class of inflation models are obtained, in particular, on the chaotic inflation with higher-power monomials, the natural inflation, and the new inflation. We study how the curvaton scenario changes (and relaxes) the constraints on these models.
description: 18 pages, 6 figures
Η επίπτωση στην τιμή των μετοχών από την ανακοίνωση απόκτησης πατέντας στις Η.Π.Α.
Creators: name: Ποτούρη, Αλεξάνδρα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Τιμές των μετοχών
subject: Ανακοίνωση απόκτησης πατέντας στις Η.Π.Α
subject: Μετοχές

description: Σκοπός της παρούσας έρευνας είναι η μελέτη της επίπτωσης της ανακοίνωσης απόκτησης πατέντας στις αποδόσεις των μετοχών. Η έρευνα εκτείνεται χρονικά από το 2012 έως το 2016 με δείγμα εισηγμένες εταιρείες στα χρηματιστήρια Nasdaq και NYSE της Νέας Υόρκης. Η έρευνα πραγματοποιήθηκε με την εφαρμογή μεθοδολογίας ανάλυσης γεγονότος, όπου μετρήθηκαν οι υπεραποδόσεις των μετοχών σε σχέση με τους δύο χρηματιστηριακούς δείκτες, σε παράθυρο γεγονότος 220 ημερών, διακοσίων ημερών πριν την ανακοίνωση και 20 μετά. Επίσης οι υπεραποδόσεις μελετήθηκαν και σε παράθυρο γεγονότος 10 και 5 ημερών πριν και μετά την ανακοίνωση της πατέντας. Ως γενικό συμπέρασμα της έρευνας προκύπτει ότι το πληροφοριακό περιεχόμενο της ανακοίνωσης της απόκτησης πατέντας στο χρηματιστήριο της Νέας Υόρκης επηρεάζει θετικά τις τιμές των μετοχών το χρονικό διάστημα πριν και μετά την ανακοίνωση της απόκτησης πατέντας όσον αφορά το διάστημα των δέκα ημερών. Όσον αφορά το διάστημα των 5 ημερών παρατηρήθηκε αρνητική επίδραση μόνο πριν την ανακοίνωση του γεγονότος, καθώς μετά υπήρξαν μηδενικές υπεραποδόσεις.
Anti-inflammatory effects of isoketocharbroic acid from brown alga, Sargassum micracanthum
Creators: name: Ham, Young Min
name: Yoon, Weon-Jong
name: Lee, Wook Jae
name: Kim, Sang-Cheol
name: Baik, Jong Seok
name: Kim, Jin Hwa
name: Lee, Geun Soo
name: Lee, Nam Ho
name: Hyun, Chang-Gu
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: brown alga
subject: inflammation
subject: isoketochabrolic acid
subject: Sargassum micracanthum
subject: 610

description: During our on-going screening program designed to isolate natural compounds from marine environments, we isolated isoketochabrolic acid (IKCA) from Sargassum micracanthum, an important brown algae distributed in Jeju Island, Korea. Furthermore, we evaluated the inhibitory effects of IKCA on nitric oxide (NO) production in lipopolysaccharide (LPS)-triggered macrophages. IKCA strongly inhibited NO production, with an IC50 value of 58.31 μM. Subsequent studies demonstrated that IKCA potently and concentration-dependently reduced prostaglandin E2 (PGE2), tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1β, and IL-6 cytokine production. In conclusion, to the best of our knowledge, this is the first study to show that IKCA isolated from S. micracanthum has a potent anti-inflammatory activity. Therefore, IKCA might be useful as an anti-inflammatory health supplement or functional cosmetics.
description: EXCLI Journal;Vol. 14, 2015
Instantons on D7 brane probes and AdS/CFT with flavour
Creators: name: Apreda, Riccardo
name: Erdmenger, Johanna
name: Evans, Nick
name: Grosse, Johannes
name: Guralnik, Zachary
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent work on adding flavour to the generalized AdS/CFT correspondence is reviewed. In particular, we consider instanton configurations on two coincident D7 brane probes. These are matched to the Higgs branch of the dual field theory. In AdS_5 x S^5, the instanton generates a flow of the meson spectrum. For non-supersymmetric gravity backgrounds, the Higgs branch is lifted by a potential, which has non-trivial physical implications. In particular these configurations provide a gravity dual description of Bose-Einstein condensation and of a thermal phase transition.
description: 12 pages, 5 figures. Based on talk given by J. Erdmenger at the RTN Workshop``Constituents, Fundamental Forces and Symmetries of the Universe'',Corfu,Greece, 20-26th September 2005. Contribution to the Proceedings
Supersymmetry and Electroweak Breaking in the Interval
Creators: name: Diego, David
name: von Gersdorff, Gero
name: Quiros, Mariano
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Hypermultiplets are considered in the five-dimensional interval where all fields are continuous and the boundary conditions are dynamically obtained from the action principle. The orbifold boundary conditions are obtained as particular cases. We can interpret the Scherk-Schwarz supersymmetry breaking as a misalignment of boundary conditions while a new source of supersymmetry breaking corresponding to a mismatch of different boundary parameters is identified. The latter can be viewed as coming from boundary supersymmetry breaking masses for hyperscalars and the nature of the corresponding supersymmetry breaking parameter is analyzed. For some regions of the parameter space where supersymmetry is broken (either by Scherk-Schwarz boundary conditions or by boundary hyperscalar masses) electroweak symmetry breaking can be triggered at the tree level.
description: 28 pages, 5 figures
Witnessing quantum correlations in a nuclear ensemble via an electron spin qubit
Creators: name: Gangloff, Dorian A.
name: Zaporski, Leon
name: Bodey, Jonathan H.
name: Bachorz, Clara
name: Jackson, Daniel M.
name: Éthier-Majcher, Gabriel
name: Lang, Constantin
name: Clarke, Edmund
name: Hugues, Maxime
name: Gall, Claire Le
name: Atatüre, Mete
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A coherent ensemble of spins interfaced with a proxy qubit is an attractive platform to create many-body coherences and probe the regime of collective excitations. An electron spin qubit in a semiconductor quantum dot can act as such an interface to the dense nuclear spin ensemble within the quantum dot consisting of multiple high-spin atomic species. Earlier work has shown that the electron can relay properties of its nuclear environment through the statistics of its mean-field interaction with the total nuclear polarisation, namely its mean and variance. Here, we demonstrate a method to probe the spin state of a nuclear ensemble that exploits its response to collective spin excitations, enabling a species-selective reconstruction beyond the mean field. For the accessible range of optically prepared mean fields, the reconstructed populations indicate that the ensemble is in a non-thermal, correlated nuclear state. The sum over reconstructed species-resolved polarisations exceeds the classical prediction threefold. This stark deviation follows from a spin ensemble that contains inter-particle coherences, and serves as an entanglement witness that confirms the formation of a dark many-body state.
An enhanced algorithm for multiple sequence alignment of protein sequences using genetic algorithm
Creators: name: Kumar, Manish
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: bioinformatics
subject: multiple sequence alignment
subject: genetic algorithm
subject: crossover operator
subject: mutation operator
subject: 610

description: One of the most fundamental operations in biological sequence analysis is multiple sequence alignment (MSA). The basic of multiple sequence alignment problems is to determine the most biologically plausible alignments of protein or DNA sequences. In this paper, an alignment method using genetic algorithm for multiple sequence alignment has been proposed. Two different genetic operators mainly crossover and mutation were defined and implemented with the proposed method in order to know the population evolution and quality of the sequence aligned. The proposed method is assessed with protein benchmark dataset, e.g., BALIBASE, by comparing the obtained results to those obtained with other alignment algorithms, e.g., SAGA, RBT-GA, PRRP, HMMT, SBPIMA, CLUSTALX, CLUSTAL W, DIALIGN and PILEUP8 etc. Experiments on a wide range of data have shown that the proposed algorithm is much better (it terms of score) than previously proposed algorithms in its ability to achieve high alignment quality.
description: EXCLI Journal;Vol. 14, 2015
Trocholites triangulus Aubrechtová & Korn, 2025, sp. nov.
Creators: name: Aubrechtová, Martina
name: Korn, Dieter
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Tarphyceratida
Trocholitidae
Trocholites
Trocholites triangulus

description: Trocholites triangulus sp. nov.
urn:lsid:zoobank.org:act: DA076484-0576-40B8-8666-5C40700CFCB6
Fig. 23; Table 14
Diagnosis
Species of the genus Trocholites with an adult conch diameter of 26 mm. Conch in the last whorl thinly discoidal (CWI ~ 0.33) and evolute (UWI ~ 0.55). Whorl profile depressed (WWI ~ 1.50) with rounded flanks, venter narrowed down, whorl widest dorso-laterally. Whorl width and whorl height increasing in last quarter volution. Phragmocone chambers moderately long (RCL ~ 0.38). Suture line straight.
Etymology
From the Latin ‘ triangulus ʼ (nomen) = ‘a triangle’, referring to the shape of the apertural whorl profile of the holotype given by the narrowed venter.
Material examined
Holotype
GERMANY – Mecklenburg-Vorpommern • Göhren (Isle of Rügen); Lasnamägi Regional Stage; 1968; Krueger Coll.; illustrated in Fig. 23; MB.C. 32176.
Description
Specimen MB.C.32176 (Fig. 23) is a small adult conch with only 25 mm diameter; it is extremely discoidal (CWI = 0.33) and evolute (UWI = 0.57) with a depressed last whorl (WWI = 1.50). The venter of the outer whorl is not rounded but is narrowed down and the whorl appears to be widest dorso-laterally. The relative chamber length (RCL) is 0.38. The body chamber has a length of slightly more than half a volution and its aperture possesses lateral and ventrolateral flares (the ventral part cannot be seen).
Remarks
The holotype of Trocholites triangulus sp. nov. is similar to specimens MB.C.32161 and MB.C.32160, which belong to T. depressus, and specimen MB.C.32182 (T. sp. 4) (Fig. 7). However, the former differs by the ventrally narrowed external volution. The arched, keel-like shape of the outer ventral side of the conch is known in specimens of Trocholites gracilis from the late Chazyan Valcour Limestone of New York (Flower 1943); the adult conch size (dm 24 mm) is similar to Trocholites triangulus and suture line in both species is essentially straight. The last half a whorl in the latter is, however, depressed, instead of slightly compressed (WWI = 1.50 vs 0.93).
description: Published as part of Aubrechtová, Martina & Korn, Dieter, 2025, The coiled Middle Ordovician cephalopod genera Trocholites and Curtoceras (Tarphyceratida) from Baltoscandia and north-central Europe, pp. 1-78 in European Journal of Taxonomy 982 on pages 46-47, DOI: 10.5852/ejt.2025.982.2843, http://zenodo.org/record/15096341
title: Προσδιοριστικοί παράγοντες κερδοφορίας τραπεζών
title: Bank profitability measures and determinants
titleType: AlternativeTitle
Creators: name: Νικολούλια, Γεωργία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: ROA
subject: ROE
subject: NIM
subject: SPSS
subject: Παλινδρόμηση

description: Η κερδοφορία είναι ένας κρίσιμος στόχος για οποιαδήποτε επιχείρηση, αν όχι ο σημαντικότερος, διότι σηματοδοτεί την επιτυχία της εντός της αγοράς. Με την πάροδο του χρόνου πολλά είναι αυτά που συμβάλουν σ΄αυτήν, όπως η γενική οικονομική ανάπτυξη, το ΑΕΠ, ο πληθωρισμός, ο ανταγωνισμός και πολλά ακόμα που θα αναπτυχθούν στην συνέχεια. Οι επιπτώσεις όλων αυτών των παραγόντων επηρεάζουν ολόκληρη την οικονομία και πόσο μάλλον τον τραπεζικό τομέα. Οι τράπεζες λοιπόν αντιπροσωπεύουν ένα θεμελιώδη πυλώνα που υποστηρίζει την χρηματοδότηση της σύγχρονης οικονομίας. Σκοπός λοιπόν της παρούσας εργασίας είναι η μελέτη των παραγόντων εκείνων που επηρεάζουν και συμβάλουν την κερδοφορία των τραπεζών, για την όσο γίνεται καλύτερη ενίσχυση και σταθεροποίηση του τραπεζικού κλάδου. Η παρούσα μελέτη αναλύει την κερδοφορία των ελληνικών τραπεζών για την περίοδο 2004-2019 εξετάζοντας τους εσωτερικούς, εξωτερικούς και μακροοικονομικούς δείκτες, βασιζόμενοι σε δεδομένα των ισολογισμών τους, έχοντας ως εξαρτημένες μεταβλητές τους δείκτες ROA, ROE και NIM. Η ανάλυση πραγματοποιήθηκε με την μέθοδο της πολλαπλής παλινδρόμησης μέσω του στατιστικού προγράμματος SPSS. Τα αποτελέσματα που θα παρουσιαστούν αναλυτικότερα στο τελευταίο κεφάλαιο της εργασίας δείχνουν ότι οι δείκτες που επηρεάζουν την κερδοφορία των τραπεζών είναι ο πιστωτικός κίνδυνος, το μέγεθος, η κεφαλαιακή επάρκεια, ο κίνδυνος ρευστότητας, το προσωπικό, και ο δείκτης χρονικής υστέρησης.