cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
XMM-Newton observations of two X-ray bright galaxy groups - pushing out to r_500
Creators: name: Rasmussen, Jesper
name: Ponman, Trevor J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of XMM-Newton observations of the z=0.18 galaxy group WARPJ0943.7+1644 and the nearby poor cluster WARPJ0943.5+1640 at z=0.256. Tracing the X-ray gas out to ~425h^(-1) and ~500h^(-1) kpc in the two systems, corresponding to roughly 70 per cent of the estimated virial radii, we find the surface brightness profile of both groups to be well described by standard beta-models across the entire radial range, but with a significantly lower value of beta in the cooler WARPJ0943.7+1644. A Navarro-Frenk-White (NFW) model for the gas density can also provide a good fit to the surface brightness data, but a large scale radius is required, and gas-traces-mass is strongly ruled out. Both systems fall close to the observed L_X-T relation for clusters. Gas mass fractions increase with radius out to the radii probed, reaching extrapolated values at the virial radius of 0.08 and 0.09h^(-3/2), respectively. The latter is concordant with results obtained for more massive systems. Gas entropy profiles show evidence for excess entropy out to at least r_500, and are inconsistent with predictions of simple preheating models. This study emphasizes the need for observing galaxy groups out to large radii, to securely establish their global properties.
description: 14 pages, 7 figures, accepted for publication in MNRAS
An elementary approach to 6j-symbols (classical, quantum, rational, trigonometric, and elliptic)
Creators: name: Rosengren, Hjalmar
Publisher: name: arXiv
Year: 2003
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 33D45, 33D80, 82B23

description: Elliptic 6j-symbols first appeared in connection with solvable models of statistical mechanics. They include many interesting limit cases, such as quantum 6j-symbols (or q-Racah polynomials) and Wilson's biorthogonal 10-W-9 functions. We give an elementary construction of elliptic 6j-symbols, which immediately implies several of their main properties. As a consequence, we obtain a new algebraic interpretation of elliptic 6j-symbols in terms of Sklyanin algebra representations.
description: 32 pages
Nil-Killing vector fields and type III deformations
Creators: name: Aadne, Matthew
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This paper is concerned with deformations of Kundt metrics in the direction of type $III$ tensors and nil-Killing vector fields whose flows give rise to such deformations. We find various characterizations within the Kundt class in terms of nil-Killing vector fields and obtain a theorem classifying algebraic stability of tensors, which has an application in finding sufficient criteria for a type $III$ deformation of the metric to preserve spi's. This is used in order to specify Lie algebras of nil-Killing vector fields that preserve the spi's, for degenerate Kundt metrics. Using this we discuss the characterization of Kundt-CSI spacetimes in terms of nil-Killing vector fields.
description: 35 pages
Delocalizing effect of the Hubbard repulsion for electrons on a two-dimensional disordered lattice
Creators: name: Srinivasan, Bhargavi
name: Benenti, Giuliano
name: Shepelyansky, Dima L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study numerically the ground-state properties of the repulsive Hubbard model for spin-1/2 electrons on two-dimensional lattices with disordered on-site energies. The projector quantum Monte Carlo method is used to obtain very accurate values of the ground-state charge density distributions with $N_p$ and $N_p+1$ particles. The difference in these charge densities allows us to study the localization properties of an added particle. The results obtained at quarter-filling on finite clusters show that the Hubbard repulsion has a strong delocalizing effect on the electrons in disordered 2D lattices. However, numerical restrictions do not allow us to reach a definite conclusion about the existence of a metal-insulator transition in the thermodynamic limit in two-dimensions.
description: revtex, 7 pages, 7 figures
ОЦЕНКИ УРОВНЯ КИБЕРБЕЗОПАСНОСТИ
Creators: name: Abdullayev, Yorqinjon
name: Raxmonov, Shaxobiddin
Publisher: name: Zenodo
Year: 2024

description: Во всем мире создаются новые виды преступности, новые способы и формы преступности. В качестве яркого примера можно привести массовое распространение киберпреступности. В Республике Узбекистан проводится ряд мероприятий по борьбе с киберпреступностью. В частности, ярким примером тому является Закон Республики Узбекистан от 15 апреля 2022 года №764¹ «О кибербезопасности».
Rolling tachyon solution of two-dimensional string theory
Creators: name: Mandal, Gautam
name: Wadia, Spenta R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a classical (string) field theory of $c=1$ matrix model which was developed earlier in hep-th/9207011 and subsequent papers. This is a noncommutative field theory where the noncommutativity parameter is the string coupling $g_s$. We construct a classical solution of this field theory and show that it describes the complete time history of the recently found rolling tachyon on an unstable D0 brane.
description: 19 pages, 2 figures, minor changes in text and additional references, correction of decay time (version to appear in JHEP.)
Additional file 6 of Lyophilized alginate-based microspheres containing Lactobacillus fermentum D12, an exopolysaccharides producer, contribute to the strain’s functionality in vitro
Creators: name: Butorac, Katarina
name: Novak, Jasna
name: Bellich, Barbara
name: Lucrecia C. Terán
name: Banić, Martina
name: Pavunc, Andreja Leboš
name: Zjalić, Slaven
name: Cescutti, Paola
name: Šušković, Jagoda
name: Blaženka Kos
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer

description: Additional file 6: Table S1. Genes of L. fermentum D12 involved in exopolysaccharides (EPSs) production and in the activation of the precursor molecules.
Nomad Stories: Travelling in Times of Crisis
Creators: name: Cotocea, Ioana
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: Travel
Ethics
Pandemic
COVID-19
Mobility

description: Travel has been one of the sectors most severely affected by the COVID-19 pandemic. Countries have taken urgent and aggressive action to contain the spread of the virus by implementing measures such as travel bans, border closures, and lockdowns. This thesis theorizes the relationship between self-making, ethics, and travel at a time when movement has become restricted and morally questionable. It traces important ethical tensions generated by the pandemic and grounds them in different conceptualizations of uncertainty, risk, responsibility, and mobility. Through the examination of the historical and global forces that led to the globalization of movement, capital, bodies, and viruses, this work explores the new parameters of travel as produced by the pandemic and its ensuing restrictions. It argues that COVID-19 blurs the distinctions between local and global infrastructures, bodies, and forms of knowledge, rendering them increasingly difficult to maintain. By examining the unfolding of the global crisis and its effects on the practice of travel, this thesis unravels new and innovative patterns of consumption and envisions alternative futures for the tourism industry.
УЙ-ЖОЙДАН ФОЙДАЛАНИШ ҲУҚУҚИНИ ЙЎҚОТГАН ДЕБ ТОПИШ: ГЕРМАНИЯ ВА ФРАНЦИЯ ТАЖРИБАСИ
Creators: name: Юсупов Хуршид Абдурашитович Судьялар олий кенгаши ҳузуридаги Судьялар олий мактаби тингловчиси
Publisher: name: Zenodo
Year: 2025

description: Мазкур мақолада уй-жойдан фойдаланиш ҳуқуқини йўқотиш асослари Германия ва Франция давлатлари қонунчилиги асосида тадқиқ этилиб, ушбу давлатлар қонунчилигида уй-жой муносабатлари хусусан, ижарачисининг ҳуқуқий мақоми қандай ҳимоя қилиниши, ижара муносабатларида мулк ҳуқуқи билан яшаш ҳуқуқи ўртасида қандай мувозанат сақланиши суд амалиёти ва конституциявий тамойилларни чуқур таҳлил қилиш асосида ёритилган.

Калит сўзлар: уй-жойдан фойдаланиш ҳуқуқи, ижарачи, кўчириш, яшаш ҳуқуқи, пропорсионаллик тамойили, асосли манфаатлар, ижтимоий ҳимоя, конституциявий қадрият, қишки тақиқ
Kubo conductivity for anisotropic tilted Dirac semimetals and its application to 8-Pmmn borophene: The role of different frequency, temperature and scattering limits
Creators: name: Herrera, Saúl A.
name: Naumis, Gerardo G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electronic and optical conductivities for anisotropic tilted Dirac semimetals are calculated using the Kubo formula. As in graphene, it is shown that the minimal conductivity is sensitive to the order in which the temperature, frequency and scattering limits are taken. Both intraband and interband scattering are found to be direction dependent. In the high frequency and low temperature limit, the conductivities do not depend on frequency and are weighted by the anisotropy in such a way that the geometrical mean $\sqrt{σ_{xx}σ_{yy}}$ of the conductivity is the same as in graphene. This results from the fact that in the zero temperature limit, interband transitions are not affected by the tilt in the dispersion, a result that is physically interpreted as a global tilting of the allowed transitions. Such result is verified by an independent and direct calculation of the absorption coefficient using the Fermi golden rule. However, as temperature is raised, an interesting minimum is observed in the interband scattering, interpreted here as a result of the interplay between the tilt and the chemical potential increasing with temperature.
Additional file 1 of Impact of the COVID-19 pandemic on diagnosis, stage, and initial treatment of breast cancer in the Netherlands: a population-based study
Creators: name: Eijkelboom, Anouk H.
name: De Munck, Linda
name: Marie-Jeanne T. F. D. Vrancken Peeters
name: Broeders, Mireille J. M.
name: Strobbe, Luc J. A.
name: Bos, Monique E. M. M.
name: Marjanka K. Schmidt
name: Paez, Cristina Guerrero
name: Smidt, Marjolein L.
name: Bessems, Maud
name: Verloop, Janneke
name: Linn, Sabine
name: Lobbes, Marc B. I.
name: Honkoop, Aafke H.
name: Van Den Bongard, Desirée H. J. G.
name: Westenend, Pieter J.
name: Wesseling, Jelle
name: C. Willemien Menke-Van Der Houven Van Oordt
name: Tjan-Heijnen, Vivianne C. G.
name: Siesling, Sabine
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Table 1. Recommendations how to prioritize and adapt treatment for breast cancer patients during the COVID-19 outbreak. List of recommendations formulated by the Scientific associations (Dutch Society of Medical Oncology (NVMO), Dutch Society of Surgical Oncology (NVCO), and Dutch Society of Radiotherapy and Oncology (NVRO) [4]) on how to prioritize and adapt treatment for breast cancer patients during the COVID-19 outbreak. Recommendations were introduced on 22 March 2020. Table 2. Baseline characteristics of patients diagnosed in weeks 2–17 2018 or 2019. Comparison between the baseline characteristics of patients diagnosed in weeks 2–17 2018 and those diagnosed in weeks 2–17 2019. Table 3. Women per week by initial treatment within 3 months of diagnosis, diagnosis period, and age. We compared data for weeks 2–17 of 2020 (the COVID-19 period) with those for weeks 2–17 of 2018/2019 using the Mantel–Haenszel test, adjusted by stage (DCIS, stage I, stage II, stage III, stage IV). Table 4. Association between diagnosis period and days between diagnosis and initial treatment. Cox regression analyses calculating the hazard ratios and 95% confidence intervals to investigate the association between period of diagnosis of the invasive tumor (week 2–17 2018/2019 as a reference) and days between diagnosis and initial treatment, per initial treatment. Hazard ratios are adjusted for age groups, socioeconomic status, subtype, and region.
GREENING THE COMMON AGRICULTURAL POLICY. CHALLENGES AND PERSPECTIVES FOR ROMANIAN AGRICULTURE TOWARDS EUROPEAN NEW REFORMS
Creators: name: Ion, Raluca Andreea
name: Andrei, Jean Vasile
name: Ion, Raluca Andreea
name: Andrei, Jean Vasile
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: agriculture
subject: direct payments
subject: CAP
subject: greening measures
subject: environment
subject: rural communities
subject: agricultural revenues

description: Romanian agriculture has experienced major challenges and changes after the integration into European Union in 2007. The whole process of adapting the national agriculture to the EU-27 agricultural paradigm has imposed redesigning the inland financing mechanism. The new CAP reform brings both new opportunities and major constrains for Romanian agriculture. In this context, the main aim of this chapter is to present a descriptive analysis regarding the effects of greening the CAP mechanism on Romanian agriculture, during the 2014-2020 financial framework.
description: Chapter from the Monograph: CONTEMPORARY ISSUES OF SUSTAINABLE RURAL DEVELOPMENT: INTERNATIONAL APPROACHES AND EXPERIENCES OF EASTERN EUROPE AND RUSSIA
Relativistic deformed kinematics from locality conditions in a generalized spacetime
Creators: name: Carmona, J. M.
name: Cortes, J. L.
name: Relancio, J. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how a deformed composition law of four-momenta can be used to define, at the classical level, a modified notion of spacetime for a system of two particles through the crossing of worldlines in particle interactions. We present a derivation of a generic relativistic isotropic deformed kinematics and discuss the complementarity and relations with other derivations based on $κ$-Poincaré Hopf algebra or on the geometry of a maximally symmetric momentum space.
description: 16 pages
Hybrid integration methods for on-chip quantum photonics
Creators: name: Kim, Je-Hyung
name: Aghaeimeibodi, Shahriar
name: Carolan, Jacques
name: Englund, Dirk
name: Waks, Edo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The goal of integrated quantum photonics is to combine components for the generation, manipulation, and detection of non-classical light in a phase stable and efficient platform. Solid-state quantum emitters have recently reached outstanding performance as single photon sources. In parallel, photonic integrated circuits have been advanced to the point that thousands of components can be controlled on a chip with high efficiency and phase stability. Consequently, researchers are now beginning to combine these leading quantum emitters and photonic integrated circuit platforms to realize the best properties of each technology. In this article, we review recent advances in integrated quantum photonics based on such hybrid systems. Although hybrid integration solves many limitations of individual platforms, it also introduces new challenges that arise from interfacing different materials. We review various issues in solid-state quantum emitters and photonic integrated circuits, the hybrid integration techniques that bridge these two systems, and methods for chip-based manipulation of photons and emitters. Finally, we discuss the remaining challenges and future prospects of on-chip quantum photonics with integrated quantum emitters.
description: 17 pages, 9 figures
RURAL TOURISM IN THE DANUBE REGION OF THE REPUBLIC OF SERBIA – COMPARATIVE EXPERIENCES AND DEVELOPMENT PERSPECTIVES
Creators: name: CVIJANOVIĆ, Drago
name: VUKOVIĆ, Predrag
name: CVIJANOVIĆ, Drago
name: VUKOVIĆ, Predrag
Publisher: name: Unknown
Year: 2014
Subjects: subject: Community/Rural/Urban Development
subject: destination
subject: tourism
subject: rural area development
subject: agriculture

description: Rural areas with preserved nature and reach anthropogenic tradition of different rural areas have always attracted people for holidays and to stay. In recent years that kind of needs increase. A large number of factors affect the growth and development interests people from urban areas. Primarily environmental pollution, the increasing alienation of people from the natural environment, uniformity and standardization that provides a modern way of life in urban city areas, etc. Serbia has obviously great resources opportunities for development rural tourism. The attitude based on the fact of the presence of a large number of natural and human (anthropogenic) sources which are located in rural areas. As one of the important natural attractiveness in Serbia represents the Danube River which extends for 588 km and it is fully navigable. Due to its length, it is necessary to describe Danube in three spatial geographic entities: the upper Danube, Metropolitan area (Belgrade – Novi Sad) and the Lower Danube. Natural attractiveness which are present in all three areas and also significant anthropogenic resources, make base for tourism development. All resources are comfortable for development tourism of special interest. This area has great potential for development of the rural tourism. Attitude based primarily on the size of the territory that covers rural areas. This paper work analysed natural and social resources which are important for the development of tourism with special emphasis on the development of rural tourism in all three areas. Paper work will point out the strategic directions for its further tourist development primarily starting from marketing and management approach to developing rural tourism destinations.
description: Chapter in the Monograph: CONTEMPORARY ISSUES OF SUSTAINABLE RURAL DEVELOPMENT: INTERNATIONAL APPROACHES AND EXPERIENCES OF EASTERN EUROPE AND RUSSIA
Additional file 1 of Antimicrobial activity of the volatile substances from essential oils
Creators: name: Mareshah Abers
name: Schroeder, Sydney
name: Linna Goelz
name: Sulser, Adrienne
name: St. Rose, Tiffany
name: Puchalski, Keely
name: Langland, Jeffrey
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1 Figure S1. Example of glass cylinder evaporative zone of inhibition assay. As described in the Methods, bacterial or Candida broth cultures were used to inoculate agar petri dishes by spreading 1 × 10 colony forming units (cfu) in 100ul media on the surface of the agar. A 10 mm plug of agar was removed from the center of the petri dish and a sterile glass cylinder containing the indicated amounts of essential oil (0 μL, 10 μL, 20 μL, 40 μL, 80 μL, 160 μL) was placed in the hole in the center of the petri dish. The petri dishes were placed in a plastic container (to prevent any air flow currents from the incubator fan) and incubated for 24 h at 37 °C in an environmentally controlled incubator. After 24 h of incubation, the zone of inhibition (diameter) was measured.
Agri-investments and public spending in selected vulnerable countries – will they contribute to reduce food insecurity?
Creators: name: Wieck, Christine
name: Rudloff, Bettina
name: Heucher, Angela
name: Wieck, Christine
name: Rudloff, Bettina
name: Heucher, Angela
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Food Security and Poverty
subject: International Development
subject: Agri-investments
subject: food security
subject: determinants
subject: responsible investment

description: Using a panel data set for about 70 countries, this paper jointly analyzes agri-investment trends and food security developments in vulnerable countries. This work empirically connects two mainly independent debates about impacts of agri-investments on food security and on the proposed responsible investment policy frameworks and its contribution to achieve food security. The results indicate the special relevance of private investments, domestic or foreign. The domestic situation in target countries in terms of governance is relevant: Good governance supports food security. The findings underline the importance of the recently developed responsible investments guidelines as they shall contribute that investments maintain their potential positive influence on economic development and food security.
Vortex glass transition in a frustrated 3D XY model with disorder
Creators: name: Olsson, Peter
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The anisotropic frustrated three dimensional (3D) XY model with disorder in the coupling constants is simulated as a model of a point disordered superconductor in an applied magnetic field. From a finite size scaling analysis of the helicity modulus it is concluded that the data is consistent with a finite temperature transition with isotropic scaling and the correlation length exponent is found to be ν=1.50+/-0.12, consistent with 3D gauge glass universality.
description: For additional information, see http://www.tp.umu.se/~olsson/VortexGlass.html
ENSURANCE OF SUSTAINABLE RURAL DEVELOPMENT THROUGH LIBERALIZATION OF TRADE WITH AGRICULTURAL COMMODITIES AND CAP REFORMS
Creators: name: EROKHIN, Vasily
name: IVOLGA, Anna
name: EROKHIN, Vasily
name: IVOLGA, Anna
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: International Relations/Trade
subject: sustainability
subject: rural development
subject: international trade
subject: food security
subject: agricultural policies

description: The chapter aims at overview of the main approaches to agricultural policies in developed and developing countries and investigation of perspective ways for ensurance of sustainable rural development in the conditions of liberalization of trade with agricultural commodities and food. The current state of agricultural policies and trade with agricultural commodities is analyzed on the example of EU-27, USA and Japan. The experiences of developing countries are summarized on the examples of Russia and CIS countries. The issues of sustainable rural development and main influences of trade liberalization are considered in the light of food security, where situation in Russia is compared to the developed countries. The chapter results in the conclusion, that developing countries would be able to ensure the sustainable rural development by evolution of state support in rural territories, import substitution, provision of environmental safety of domestic agricultural commodities, development of rural tourism and other income opportunities for rural people. In relation to long-term food security in the conditions of trade liberalization, the development of polycentricism of global agricultural market is considered as the key factor.
description: Chapter in the Monograph: CONTEMPORARY ISSUES OF SUSTAINABLE RURAL DEVELOPMENT: INTERNATIONAL APPROACHES AND EXPERIENCES OF EASTERN EUROPE AND RUSSIA
Can Pre-harvest Marketing Strategies Increase Net Returns for Corn and Soybean Growers?
Creators: name: Wisner, Robert N.
name: Blue, E. Neal
name: Wisner, Robert N.
name: Blue, E. Neal
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural marketing

description: Grain producers price grain prior to harvest to reduce financial risk and to enhance net returns. Since accomplishing the second objective is debatable, alternative corn and soybean pre-harvest options/hedge marketing strategies were designed to test the hypothesis that pre-harvest pricing could generate statistically higher average net returns than harvest sales, without increasing income variability. Weekly seasonal futures price patterns from 1975 to 1994 were used to time marketings. The strategies were applied to Iowa and Ohio model farms. For the 1985-96 period, the hypothesis was accepted.
Cheddar Cheese and Fluid Milk Cointegration among Cash and Futures Prices: The Evidence for a Long-term Equilibrium Relationship
Creators: name: Thraen, Cameron S.
name: Petrov, Krassimir
name: Thraen, Cameron S.
name: Petrov, Krassimir
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural marketing

description: In the early 1990's, after four decades of relying on government mandated minimum price supports and public stockholding to achieve price risk management, the United States dairy industry is undertaking a shift to a market clearing equilibrium system. A significant component of this new structure is the development of an operational futures market for selected milk and dairy products. In June of 1993 the Coffee, Sugar, & Cocoa Exchange introduced contracts on nonfat dry milk and cheddar cheese. In December of 1995 the CSCE introduced a contract on fluid milk and this was followed in January 1996 by a similar fluid milk contract trading on the Chicago Mercantile Exchange. This paper examines the extent to which a long-run equilibrium relationship has been established between the cheese and fluid milk futures markets and their cash market counterparts. The existence of a long-run equilibrium is a necessary condition for effective hedging opportunities. Using the time series concept of cointegrated series we concluded that the data support an equilibrium relationship in the cheese markets but provide no support for an equilibrium relationship in the fluid milk market.
Optimal Marketing Decisions for Cattle under Price Risk
Creators: name: Wang, Xuecai
name: Dorfman, Jeffrey H.
name: McKissick, John
name: Wang, Xuecai
name: Dorfman, Jeffrey H.
name: McKissick, John
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural marketing

description: Optimal marketing decisions for cattle in Georgia are of critical importance to the profitability and continued economic survival of producers because of the low profit margins common to cattle production in the Southeast. Many Georgia producers sell calves in November rather than retaining ownership, feeding until May, and selling as stocker cattle. This allows producers to avoid price risk, but may cause them to miss profit opportunities. We examine five different marketing strategies and assess their expected profitability and riskiness. These expectations are employed to compute the expected utility of profit and allow a producer to choose an optimal marketing strategy for a specific level of risk aversion. Empirical results for a representative Georgia cattle operation of 130 calves show that optimal decisions in the last three years have been either selling in November or feeding until May while using a futures hedge. For example, in 1996 the technique recommends feeding until May while selling two futures contracts as a hedge to reduce risk. Following this advice would have earned a producer an extra $1594 (or $12 per head). Given that Georgia producers commonly earn about $30 per head if they sell in November, these extra profits are economically significant.
The 'New' Live Cattle Futures Contract: Basis Issues
Creators: name: Murphy, Rob
name: Boris, Keith
name: Murphy, Rob
name: Boris, Keith
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural marketing

description: Practical issues for live cattle basis calculation are explored. Significant differences were found when cash volume weights and mean futures prices were used in basis calculations rather than equal weighting and settlement futures prices. Using settlement futures prices rather than mean futures prices is probably acceptable for studies considering basis over a long period. Changes to the live cattle contract in June 1995 have caused the basis to become more negative. Day-to-day variability in the basis has changed little under the new contract specifications, but month-to-month variability has been reduced significantly.
Lemma Generation for Horn Clause Satisfiability: A Preliminary Study
Creators: name: De Angelis, Emanuele
name: Fioravanti, Fabio
name: Pettorossi, Alberto
name: Proietti, Maurizio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: It is known that the verification of imperative, functional, and logic programs can be reduced to the satisfiability of constrained Horn clauses (CHCs), and this satisfiability check can be performed by using CHC solvers, such as Eldarica and Z3. These solvers perform well when they act on simple constraint theories, such as Linear Integer Arithmetic and the theory of Booleans, but their efficacy is very much reduced when the clauses refer to constraints on inductively defined structures, such as lists or trees. Recently, we have presented a transformation technique for eliminating those inductively defined data structures, and hence avoiding the need for incorporating induction principles into CHC solvers. However, this technique may fail when the transformation requires the use of lemmata whose generation needs ingenuity. In this paper we show, through an example, how during the process of transforming CHCs for eliminating inductively defined structures one can introduce suitable predicates, called difference predicates, whose definitions correspond to the lemmata to be introduced. Through a second example, we show that, whenever difference predicates cannot be introduced, we can introduce, instead, auxiliary queries which also correspond to lemmata, and the proof of these lemmata can be done by showing the satisfiability of those queries.
description: In Proceedings VPT 2019, arXiv:1908.06723
Cooperativity in sandpiles: statistics of bridge geometries
Creators: name: Mehta, Anita
name: Barker, G. C.
name: Luck, J. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Bridges form dynamically in granular media as a result of spatiotemporal inhomogeneities. We classify bridges as linear and complex, and analyse their geometrical characteristics. In particular, we find that the length distribution of linear bridges is exponential. We then turn to the analysis of the orientational distribution of linear bridges and find that, in three dimensions, they are {\it vertically diffusive but horizontally superdiffusive}; thus, when they exist, long linear bridges form `domes'. Our results are in good accord with Monte Carlo simulations of bridge structure; we make predictions for quantities that are experimentally accessible, and suggest that bridges are very closely related to force chains.
description: 15 pages, 10 figures. Minor changes and updates
Acraea pharsalus Ward 1871
Creators: name: Liseki, Steven D.
name: Vane-Wright, Richard I.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Acraea
Acraea pharsalus

description: Acraea pharsalus Ward, 1871
 Larsen 1996: pl. 52, fig. 649i,ii. d ’ Abrera 1997: 149 (4 figs). Bernaud and Murphy 2014: 156 (8 figs, Malawi). SI: Figure 27a – j.
 Forewing length: male 27.0 – 33.0 mm [mean (n = 8) 30.60 mm, SD = 1.358]; female 28.5 – 38.5 mm [mean (n = 11) 33.61 mm, SD = 2.925].
 Note: Many authors have regarded this species as polytypic (e.g. Larsen 2005, p. 446), with the Kilimanjaro population usually included in subspecies A. p. pharsaloides Holland, 1892 – originally described from ‘ Kilimanjaro ’ (Holland 1896 described this taxon again, also as ‘ new ’). However, Pierre and Bernaud (2014) regard this butterfly as monotypic, placing all infraspecific names, including a subspecies named in 1991 from Principe, as synonyms. At least two forms occur at Moshi (see SI Figure 27), both of which can occur in both sexes. Sexual dimorphism seems slight; in museum specimens females are paler orange than males.
description: Published as part of Liseki, Steven D. & Vane-Wright, Richard I., 2018, Butterflies (Lepidoptera: Papilionoidea) of Mount Kilimanjaro: Nymphalidae subfamily Helconiinae, pp. 2511-2552 in Journal of Natural History 52 (39 - 40) on pages 2538-2539, DOI: 10.1080/00222933.2018.1539780, http://zenodo.org/record/5177759
'LAJAK BOSHLANG'ICH SINF O'QITUVCHILARINI IJODIY-METODIK KOMPETENTLILIGINI RIVOJLANTIRISH MAZMUNI
Creators: name: Uralova, Muxabbat
Publisher: name: Zenodo
Year: 2025

description: Bo‘lajak boshlang‘ich sinf o‘qituvchilarining ijodiy-metodik kompetentligini rivojlantirish mavzusi muhim va keng qamrovli. Ushbu mavzu doirasida boshlang‘ich sinf o‘qituvchilarining ijodiy va metodik ko‘nikmalarini rivojlantirish uchun bir nechta asosiy yo‘nalishlar va uslublar mavjud. Quyidagi maqola shu jihatlar yoritilgan.
Polyvariant Program Specialisation with Property-based Abstraction
Creators: name: Gallagher, John P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: In this paper we show that property-based abstraction, an established technique originating in software model checking, is a flexible method of controlling polyvariance in program specialisation in a standard online specialisation algorithm. Specialisation is a program transformation that transforms a program with respect to given constraints that restrict its behaviour. Polyvariant specialisation refers to the generation of two or more specialised versions of the same program code. The same program point can be reached more than once during a computation, with different constraints applying in each case, and polyvariant specialisation allows different specialisations to be realised. A property-based abstraction uses a finite set of properties to define a finite set of abstract versions of predicates, ensuring that only a finite number of specialised versions is generated. The particular choice of properties is critical for polyvariance; too few versions can result in insufficient specialisation, while too many can result in an increase of code size with no corresponding efficiency gains. Using examples, we show the flexibility of specialisation with property-based abstraction and discuss its application in control flow refinement, verification, termination analysis and dimension-based specialisation.
description: In Proceedings VPT 2019, arXiv:1908.06723
Nose-Hoover sampling of quantum entangled distribution functions
Creators: name: Mentrup, D.
name: Schnack, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: While thermostated time evolutions stand on firm grounds and are widely used in classical molecular dynamics (MD) simulations, similar methods for quantum MD schemes are still lacking. In the special case of a quantum particle in a harmonic potential, it has been shown that the framework of coherent states permits to set up equations of motion for an isothermal quantum dynamics. In the present article, these results are generalized to indistinguishable quantum particles. We investigate the consequences of the (anti-)symmetry of the many-particle wavefunction which leads to quantum entangled distribution functions. The resulting isothermal equations of motion for bosons and fermions contain new terms which cause Bose-attraction and Pauli-blocking. Questions of ergodicity are discussed for different coupling schemes.
description: 15 pages, 4 figures, submitted to PHYSICA A. More information at http://www.physik.uni-osnabrueck.de/makrosysteme/
Additional file 1 of Multi-omics analysis provides insights into lignocellulosic biomass degradation by Laetiporus sulphureus ATCC 52600
Creators: name: De Figueiredo, Fernanda Lopes
name: De Oliveira, Ana Carolina Piva
name: Terrasan, Cesar Rafael Fanchini
name: Thiago Augusto Gonçalves
name: Gerhardt, Jaqueline Aline
name: Geizecler Tomazetto
name: Persinoti, Gabriela Felix
name: Rubio, Marcelo Ventura
name: Peña, Jennifer Andrea Tamayo
name: Araújo, Michelle Fernandes
name: De Carvalho Silvello, Maria Augusta
name: Franco, Telma Teixeira
name: Rabelo, Sarita Cândida
name: Goldbeck, Rosana
name: Squina, Fabio Marcio
name: Damasio, André
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Overview of L. sulphureus ATCC 52600 multi-omics analysis. Distribution of CAZymes and redox Non-CAZymes presented in the (A) genome and (B) transcriptome. (C) Categorization of all protein identified on the secretomes. Figure S2. Analysis of L. sulphureus ATCC 52600 growth on different carbohydrates. (A) Growth for 7 days on agar plates supplemented with different carbohydrates. (B) Growth rate estimated by colony area measurement. Values expressed relative to glucose. (C) Relative glucose consumption measured using HPLC during growth in liquid medium. Growth rates were analyzed using two-way ANOVA with Tukey’s test, indicated as follows: *p<0.05, **p<0.01, ***p<0.001. Figure S3. Enzymatic activity profile of L. sulphureus ATCC 52600 secretomes. Enzymatic assays containing the different secretomes (Avicel; SCB: sugarcane bagasse; Eucalyptus: Eucalyptus grandis residue, SCS: sugarcane straw and glucose) were carried out in 50 mM sodium acetate buffer pH 5.5 for 240 min at 50 °C. Activities were analyzed assuming the secretome produced on SCB as control by two‑way ANOVA with Tukey’s test (95% confidence interval), indicated as follows: *p<0.05, **p<0.01, ***p<0.001. Reducing sugars were measured using the DNS method. Figure S4. Multiple AA14 sequence alignment. The alignment was generated by Clustal using two characterized lytic polysaccharide monooxygenases (LPMOs) from Pycnoporus coccineus CIRM-BRFM 310 (PcAA14A and PcAA14B) and two putative AA14 found in the L. sulphureus ATCC 52600 genome. Red boxes highlight the conserved amino acid residues constituting the histidine brace, a hallmark of LPMOs. Figure S5. Multiple alignment of GH7 amino acid sequences. (A) Alignment was performed by Clustal using basidiomycete cellobiohydrolases with identity higher than 65% (GenBank: KIY52887, VDC00014, and OBZ74435). (B) Phylogenetic tree of GH7 amino acid sequences, which includes 14 characterized cellobiohydrolases according to UniProt, which are from Aspergillus aculeatus, Aspergillus niger, Aspergillus terreus, Aspergillus fischerianus, Aspergillus fumigatus, Aspergillus nidulans, Penicillium funiculosum, and Phanerochaete chrysosporium.
Cationic DMPC/DMTAP Lipid Bilayers: Molecular Dynamics Study
Creators: name: Gurtovenko, A. A.
name: Patra, Michael
name: Karttunen, Mikko
name: Vattulainen, Ilpo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Cationic lipid membranes are known to form compact complexes with DNA and to be effective as gene delivery agents both in vitro and in vivo. Here we employ molecular dynamics simulations for a detailed atomistic study of lipid bilayers consisting of a mixture of cationic dimyristoyltrimethylammonium propane (DMTAP) and zwitterionic dimyristoylphosphatidylcholine (DMPC). Our main objective is to examine how the composition of the bilayers affects their structural and electrostatic properties in the liquid-crystalline phase. By varying the mole fraction of DMTAP, we have found that the area per lipid has a pronounced non-monotonic dependence on the DMTAP concentration, with a minimum around the point of equimolar mixture. We show that this behavior has an electrostatic origin and is driven by the interplay between positively charged TAP headgroups and the zwitterionic PC heads. This interplay leads to considerable re-orientation of PC headgroups for an increasing DMTAP concentration, and gives rise to major changes in the electrostatic properties of the lipid bilayer, including a significant increase of total dipole potential across the bilayer and prominent changes in the ordering of water in the vicinity of the membrane. Moreover, chloride counter-ions are bound mostly to PC nitrogens implying stronger screening of PC heads by Cl ions compared to TAP head groups. The implications of these findings are briefly discussed.
Acraea cabira Hopffer 1885
Creators: name: Liseki, Steven D.
name: Vane-Wright, Richard I.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Acraea
Acraea cabira

description: Acraea cabira Hopffer, 1885
 Larsen 1996: pl. 53, fig. 667i,ii. d ’ Abrera 1997: 153 (4 figs). Bernaud and Murphy 2014: 92 (8 figs). SI: Figure 29e – h.
 Forewing length: male 19.5 – 25.5 mm [mean (n = 13) 22.70 mm, SD = 1.291]; female 23.5 – 30.0 mm [mean (n = 11) 24.96 mm, SD = 8.21].
 Note: This species is very similar to Acraea sotikensis Sharpe, 1892. Both have red and yellow forms, but the species are separable on details of the basal patterning of the hindwing underside (Pierre and Bernaud 2007; Bernaud and Murphy 2014, p. 90). So far we have not found convincing evidence that A. sotikensis occurs on the Kilimanjaro massif, but all material of the cabira phenotype encountered should be checked. To this end we have included A. sotikensis in the key and provided an illustration (SI Figure 29i,j) to help ensure correct identification. Material in OUMNH suggests that A. cabira is sexually dimorphic in size, but not strongly sexually dimorphic in colour pattern (in females, hindwing upperside usually with submarginal pale spots; males without). Van Son (1963) recognised five forms of this species in South Africa.
description: Published as part of Liseki, Steven D. & Vane-Wright, Richard I., 2018, Butterflies (Lepidoptera: Papilionoidea) of Mount Kilimanjaro: Nymphalidae subfamily Helconiinae, pp. 2511-2552 in Journal of Natural History 52 (39 - 40) on page 2541, DOI: 10.1080/00222933.2018.1539780, http://zenodo.org/record/5177759
Healthy... Distress... Default
Creators: name: Kakushadze, Zura
Publisher: name: arXiv
Year: 2019
Subjects: subject: Pricing of Securities (q-fin.PR)
subject: Mathematical Finance (q-fin.MF)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: We discuss a simple, exactly solvable model of stochastic stock dynamics that incorporates regime switching between healthy and distressed regimes. Using this model, which is analytically tractable, we discuss a way of extracting expected returns for stocks from realized CDS spreads, essentially, the CDS market sentiment about future stock returns. This alpha/signal could be useful in a cross-sectional (statistical arbitrage) context for equities trading.
description: 6 pages; no changes to the paper; a LaTeX command added for URLs to display properly
Nanoscale phase separation in manganites
Creators: name: Kagan, M. Yu.
name: Klaptsov, A. V.
name: Brodsky, I. V.
name: Kugel, K. I.
name: Sboychakov, A. O.
name: Rakhmanov, A. L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the possibility of nanoscale phase separation in manganites in the framework of the double exchange model. The homogeneous canted state of this model is proved to be unstable toward the formation of small ferromagnetic droplets inside an antiferromagnetic insulating matrix. For the ferromagnetic polaronic state we analyze the quantum effects related to the tails of electronic wave function and a possibility of electron hopping in the antiferromagnetic background. We find that these effects lead to the formation of the threshold for the polaronic state.
description: 10 pages, 2 figures, invited talk on the workshop on Strongly Correlated Electrons in New Materials (SCENM02), Loughborough (UK). submitted to Journal of Physics A: Mathematical and General
Symmetry energy coefficients for asymmetric nuclear matter
Creators: name: Braghin, Fábio L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Symmetry energy coefficients of asymmetric nuclear matter are investigated as the inverse of nuclear matter polarizabilities with two different approaches. Firstly a general calculation shows they may depend on the neutron-proton asymmetry itself. The choice of particular prescriptions for the density fluctuations lead to certain isospin (n-p asymmetry) dependences of the polarizabilities. Secondly, with Skyrme type interactions, the static limit of the dynamical polarizability is investigated corresponding to the inverse symmetry energy coefficient which assumes different values at different asymmetries (and densities and temperatures). The symmetry energy coefficient (in the isovector channel) is found to increase as n-p asymmetries increase. The spin symmetry energy coefficient is also briefly investigated.
description: 5 pages, 2 figures (eps files)
Learning in a Compiler for MINSAT Algorithms
Creators: name: Remshagen, Anja
name: Truemper, Klaus
Publisher: name: arXiv
Year: 2003
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1, I.2.3

description: This paper describes learning in a compiler for algorithms solving classes of the logic minimization problem MINSAT, where the underlying propositional formula is in conjunctive normal form (CNF) and where costs are associated with the True/False values of the variables. Each class consists of all instances that may be derived from a given propositional formula and costs for True/False values by fixing or deleting variables, and by deleting clauses. The learning step begins once the compiler has constructed a solution algorithm for a given class. The step applies that algorithm to comparatively few instances of the class, analyses the performance of the algorithm on these instances, and modifies the underlying propositional formula, with the goal that the algorithm will perform much better on all instances of the class.
description: 16 pages