cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-Linear Spatial Price Transmission on the Turkish Wheat Market
Creators: name: Weitzel, Enno-Burghard
name: Bayaner, Ahmet
name: Weitzel, Enno-Burghard
name: Bayaner, Ahmet
Publisher: name: Unknown
Year: 2007
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business

description: Agricultural production is spread all over Turkey and the considerably different climatic and topographical conditions among the provinces lead to highly diversified agricultural production. Thus, is it reasonable to assume an integrated market all over Turkey? This paper analyzes the spatial price transmission among 28 Turkish provinces. Applying a bivariate threshold vector error correction model allows to account for transaction costs without having direct information of these. The results suggest that there is an inner cluster of several provinces that can be treated as one large integrated market. However, the degree of market integration decreases in the outer provinces of Turkey. Although transaction costs are significant for nearly all provinces, Ankara clearly stands out, showing transaction costs with every other province. The observed economic variables fail to explain this behavior. Hence, social networks as relevant factor for the interactions on the Turkish wheat market come into play. A band of non-adjustment is only established for a minority of those pairs that show a threshold. Thus, one has to critically assess the applicability of such a threshold model to analyze the market behavior of spatial price transmission.
Trade and Competitiveness of the Mediterranean Countries on the Olive Oil Market
Creators: name: Carri, Carlo Bernini
name: Sassi, Maria
name: Carri, Carlo Bernini
name: Sassi, Maria
Publisher: name: Unknown
Year: 2007
Subjects: International Relations/Trade

description: In the context of the establishment of a Mediterranean Free Trade Area, the paper analyses the structure and competitiveness of the Mediterranean basin countries in the olive oil trade and gives a preliminary explanation of the likely impact of the next liberalization process and challenges for the EU Mediterranean countries. The paper starts showing the level of integration of the international olive oil market and underlining the main factors affecting the process. Than, after a brief explanation of the methodology adopted, it analyses the main results achieved. Conclusions try to understand the impact of the competitive scenario showed by the empirical analysis on the Euromediterranean olive oil market following the trade liberalization.
Monetary Impacts and Overshooting of Agricultural Prices in a Transition Economy: The Case of Slovenia
Creators: name: Bakucs, Lajos Zoltan
name: Bojnec, Stefan
name: Ferto, Imre
name: Bakucs, Lajos Zoltan
name: Bojnec, Stefan
name: Ferto, Imre
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural Finance
subject: International Relations/Trade
subject: agricultural prices
subject: exchange rates
subject: monetary shocks
subject: overshooting
subject: transition economy

description: The paper focus on the time adjustment paths of the exchange rate and agricultural producer and industrial prices in response to unanticipated monetary shocks following model developed by Saghaian et al. (2002). Results indicate that agricultural prices adjust faster than industrial prices to innovations in the money supply, affecting relative prices in the short run, but strict long-run money neutrality does not hold. The impulse response analysis shows that an exogenous shock to the money supply has a significant and volatile effect on the three price variables. The extent of overshooting in agricultural prices is twice as large as for exchange rates or industrial prices. This indicates that in the case of monetary shocks the sectors associated with flexible changes bear the burden of adjustment vis-a-vis the sectors with sticky changes.The exchange rate pass-through on agricultural producer prices revealed by the forecast error variance analysis indicates the relatively greater importance of the exchange rate than the money supply in explaining the expected variation of the agricultural producer price. This is consistent with floating exchange rate policy, while agricultural trade policy for sensitive products has been more restricted until Slovenia joined the European Union.
An Approach on Integrated Territorial Competitiveness to Ensure Long Term Viability in Rural Areas of Andalusia (Spain)
Creators: name: Delgado, Felisa Cena
name: Cobos, Rosa Gallardo
name: Granados, Pilar Garrido
name: Delgado, Felisa Cena
name: Cobos, Rosa Gallardo
name: Granados, Pilar Garrido
Publisher: name: Unknown
Year: 2007
Subjects: Community/Rural/Urban Development

description: After more than ten years of rural development programmes in Andalusia, there is ongoing concern about the sustainability of the rural development initiated by the LEADER-PRODER programmes in the hypothetical event that such programmes were no longer in place. In order to be able to express an opinion about this issue, it is important to answer to an entire series of questions about the concept of territorial competitiveness as a guarantee of the long term viability of a rural area. In order to be able to respond to these questions, as part of a wider research project into the transformation of rural areas in Andalusia, the competitive position of 3 territories in the "Campina Alta" (Cordoba), which have been benefiting from rural development programmes for several years, were analysed. This paper presents some of our results relating to territorial competitiveness. The analysis were chiefly qualitative, and was applied to the "case study" abovementioned. The methodology used is based fundamentally on the analysis proposal of territorial competitiveness provided by the European Observatory, supplemented with elements of the methodology proposed by the IICA. The results indicate 1) one cannot generalise about whether certain factors in isolation are positive or negative for territorial competitiveness, 2) only a comprehensive approach to territorial competitiveness can guarantee the long term viability of a rural area and 3) the risks associated when the viability of the territory is linked to the existence of development programmes, whose presence is not guaranteed for the future.
A TWO-STAGE APPROACH FOR COMBINING GENE EXPRESSION AND MUTATION WITH CLINICAL DATA IMPROVES SURVIVAL PREDICTION IN MYELODYSPLASTIC SYNDROMES AND OVARIAN CANCER
Creators: name: Li, Yan
Publisher: name: JOURNAL OF BIOINFORMATICS AND GENOMICS
Year: 2016

description: Motivation: Many traditional clinical prognostic factors have been known for cancer for years, but usually provide poor survival prediction. Genomic information is more easily available now which offers opportunities to build more accurate prognostic models. The challenge is how to integrate them to improve survival prediction. The common approach of jointly analyzing all type of covariates directly in one single model may not improve the prediction due to increased model complexity and cannot be easily applied to different datasets. Results: We proposed a two-stage procedure to better combine different sources of information for survival prediction, and applied the two-stage procedure in two cancer datasets: myelodysplastic syndromes (MDS) and ovarian cancer. Our analysis suggests that the prediction performance of different data types are very different, and combining clinical, gene expression and mutation data using the two-stage procedure improves survival prediction in terms of improved concordance index and reduced prediction error. Availability and implementation: The two-stage procedure can be implemented in BhGLM package which is freely available at http://www.ssg.uab.edu/bhglm/.
description: JOURNAL OF BIOINFORMATICS AND GENOMICS, No. 1 (1) (2016)
On the number of fully packed loop configurations with a fixed associated matching
Creators: name: Caselli, Fabrizio
name: Krattenthaler, Christian
name: Lass, Bodo
name: Nadeau, Philippe
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 05A15; Secondary 05B45 05E05 05E10 82B23

description: We show that the number of fully packed loop configurations corresponding to a matching with $m$ nested arches is polynomial in $m$ if $m$ is large enough, thus essentially proving two conjectures by Zuber [Electronic J. Combin. 11 (2004), Article #R13].
description: AnS-LaTeX, 43 pages; Journal version
DEFECTCHECKER: Automated Smart Contract Defect Detection by Analyzing EVM Bytecode
Creators: name: Chen, Jiachi
name: Xia, Xin
name: Lo, David
name: Grundy, John
name: Luo, Xiapu
name: Chen, Ting
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Smart contracts are Turing-complete programs running on the blockchain. They are immutable and cannot be modified, even when bugs are detected. Therefore, ensuring smart contracts are bug-free and well-designed before deploying them to the blockchain is extremely important. A contract defect is an error, flaw or fault in a smart contract that causes it to produce an incorrect or unexpected result, or to behave in unintended ways. Detecting and removing contract defects can avoid potential bugs and make programs more robust. Our previous work defined 20 contract defects for smart contracts and divided them into five impact levels. According to our classification, contract defects with seriousness level between 1-3 can lead to unwanted behaviors, e.g., a contract being controlled by attackers. In this paper, we propose DefectChecker, a symbolic execution-based approach and tool to detect eight contract defects that can cause unwanted behaviors of smart contracts on the Ethereum blockchain platform. DefectChecker can detect contract defects from smart contracts bytecode. We compare DefectChecker with key previous works, including Oyente, Mythril and Securify by using an open-source dataset. Our experimental results show that DefectChecker performs much better than these tools in terms of both speed and accuracy. We also applied DefectChecker to 165,621 distinct smart contracts on the Ethereum platform. We found that 25,815 of these smart contracts contain at least one of the contract defects that belongs to impact level 1-3, including some real-world attacks.
Extended closed inflationary universes
Creators: name: del Campo, Sergio
name: Herrera, Ramon
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study a type of model for closed inflationary universe models using the Jordan-Brans-Dicke theory. Herein we determine and characterize the existence of $Ω>$1, together with the period of inflation. We have found that our model, which takes into account a Jordan-Brans-Dicke type of theory, is less restrictive than the one used in Einstein's theory of general relativity. Our results are compared to those found in Einstein's theory of Relativity.
description: 9 pages, 4 figures, accepted by Class. Quant. Grav
Collective spontaneous emission of two entangled atoms near an oscillating mirror
Creators: name: Reina, Marta
name: Domina, Michelangelo
name: Ferreri, Alessandro
name: Fiscelli, Giuseppe
name: Noto, Antonio
name: Passante, Roberto
name: Rizzuto, Lucia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We consider the cooperative spontaneous emission of a system of two identical atoms, interacting with the electromagnetic field in the vacuum state and in the presence of an oscillating mirror. We assume that the two atoms, one in the ground state and the other in the excited state, are prepared in a correlated (symmetric or antisymmetric) {\em Bell}-type state. We also suppose that the perfectly reflecting plate oscillates adiabatically, with the field modes satisfying the boundary conditions at the mirror surface at any given instant, so that the time-dependence of the interaction Hamiltonian is entirely enclosed in the instantaneous atoms-wall distance. Using time-dependent perturbation theory, we investigate the spectrum of the radiation emitted by the two-atom system, showing how the oscillation of the boundary modifies the features of the emitted spectrum, which exhibits two lateral peaks not present in the case of a static boundary. We also evaluate the transition rate to the collective ground state of the two-atom system in both cases of the superradiant (symmetric) and subradiant (antisymmetric) state. We show that it is modulated in time, and that the presence of the oscillating mirror can enhance or inhibit the decay rate compared to the case of atoms in vacuum space or near a static boundary. Our results thus suggest that a dynamical (i.e. time-modulated) environment can give new possibilities to control and manipulate radiative processes of atoms or molecules nearby, such as the cooperative decay, and strongly indicate a similar possibility for other radiative processes, for example the resonance interaction and the energy transfer between atoms or molecules.
description: 12 pages, 7 figures
Information and WTP: Fruit Quality Perceptions and Consumer Satisfaction
Creators: name: Poole, Nigel D.
name: Martinez-Carrasco, Laura
name: Poole, Nigel D.
name: Martinez-Carrasco, Laura
Publisher: name: Unknown
Year: 2007
Subjects: Food Consumption/Nutrition/Food Safety

description: Consumers face information problems in choosing certain types of foods that best match their preferences and assure satisfaction. For fresh fruits, expectations about the eating experience cannot be assured through external inspection of the product at the time of purchase, nor necessarily through experience. Limited information provided by the supply industry, unexploited product differentiation by marketers, and lack of awareness among consumers of quality attributes, of the intrinsic heterogeneity of fresh produce, can lead to reduced consumer satisfaction, which in turn affects consumption patterns and attenuates the impact of policy initiatives to improve diet and health. The research reported here employed the second price Vickrey experimental auction method to test consumer perceptions of fruit quality by evaluating the willingness to pay (WTP) of consumers for five different varieties of soft citrus under three different information conditions : visual inspection of the fruit before peeling; visual inspection after peeling; and after consumption. Significant differences were found in valuations of the different varieties as consumers gained information. Juiciness, sweetness and acidity were the attributes most closely correlated with WTP under conditions of full information, and also with the overall evaluation of the different varieties. Implications for growers, traders, and for policy are inferred from the results. Growers and marketers must know not only about consumer behaviour in general, but must gather market information about purchasing and consumption behaviour in relation to preferences for specific products. The potential mismatch between the purchase decision and satisfaction poses challenges for policy makers hoping to change dietary habits. In countries where dietary patterns, global food distribution systems and consumption patterns are changing fastest, and where health indicators are most under threat, the message is that governments should continue to engage actively with the food industry in the promotion of healthy products.
Design and Characterization of p-i-n Devices for Betavoltaic Microbatteries on Gallium Nitride
Creators: name: Khan, Muhammad Raziuddin A.
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Electrical engineering
subject: Energy
subject: Betavoltaic Microbatteries
subject: electron-beam
subject: Gallium Nitride
subject: Nickel-63
subject: p-i-n diode
subject: Tritium

description: Betavoltaic microbatteries convert nuclear energy released as beta particles directly into electrical energy. These batteries are well suited for electrical applications such as micro-electro-mechanical systems (MEMS), implantable medical devices and sensors. Such devices are often located in hard to access places where long life, micro-size and lightweight are required. The working principle of a betavoltaic device is similar to a photovoltaic device; they differ only in that the electron hole pairs (EHPs) are generated in the device by electrons instead of photons.

In this study, the performance of a betavoltaic device fabricated from gallium nitride (GaN) is investigated for beta particle energies equivalent to Tritium (3H) and Nickel-63 (N63) beta sources. GaN is an attractive choice for fabricating betavoltaic devices due to its wide band gap and radiation resistance. Another advantage GaN has is that it can be alloyed with aluminum (Al) to further increase the bandgap, resulting in a higher output power and increased efficiency.

Betavoltaic devices were fabricated on p-i-n GaN structures grown by metalorganic chemical vapor deposition (MOCVD). The devices were characterized using current - voltage (IV) measurements without illumination (light or beta), using a laser driven light source, and under an electron beam. Dark IV measurements showed a turn on-voltage of ~ 3.4 V, specific-on-resistance of 15.1 m Ω-cm2, and a leakage current of 0.5 mA at – 10 V. A clear photo-response was observed when IV curves were measured for these devices under a light source at a wavelength of 310 nm (4.0 eV). These devices were tested under an electron beam in order to evaluate their behavior as betavoltaic microbatteries without using radioactive materials. Output power of 70 nW and 640 nW with overall efficiencies of 1.2% and 4.0% were determined at the average energy emission of 3H (5.6 keV) and 63N (17 keV) respectively.
Near-inertial wave critical layers over sloping bathymetry
Creators: name: Qu, Lixin
name: Thomas, Leif N.
name: Hetland, Robert D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: This study describes a specific type of critical layer for near-inertial waves (NIWs) that forms when isopycnals run parallel to sloping bathymetry. Upon entering this slantwise critical layer, the group velocity of the waves decreases to zero and the NIWs become trapped and amplified, which can enhance mixing. A realistic simulation of anticyclonic eddies on the Texas-Louisiana shelf reveals that such critical layers can form where the eddies impinge onto the sloping bottom. Velocity shear bands in the simulation indicate that wind-forced NIWs are radiated downward from the surface in the eddies, bend upward near the bottom, and enter critical layers over the continental shelf, resulting in inertially-modulated enhanced mixing. Idealized simulations designed to capture this flow reproduce the wave propagation and enhanced mixing. The link between the enhanced mixing and wave trapping in the slantwise critical layer is made using ray-tracing and an analysis of the waves' energetics in the idealized simulations. An ensemble of simulations is performed spanning the relevant parameter space that demonstrates that the strength of the mixing is correlated with the degree to which NIWs are trapped in the critical layers. While the application here is for a shallow coastal setting, the mechanisms could be active in the open ocean as well where isopycnals align with bathymetry.
description: Accepted for publication in Journal of Physical Oceanography
Efficiency of Farmer Organisations in Supplying Supermarkets with Quality Food in Vietnam
Creators: name: Tam, Phan Thi Giac
name: Anh, Dao The
name: Moustier, Paule
name: Binh, Vu Trong
name: Thi, Nguyen
name: Loc, Tan
name: Tam, Phan Thi Giac
name: Anh, Dao The
name: Moustier, Paule
name: Binh, Vu Trong
name: Thi, Nguyen
name: Loc, Tan
Publisher: name: Unknown
Year: 2007
Subjects: Agribusiness
Industrial Organization

description: The development of supermarkets in Vietnam, as in other emerging countries, goes along with an increasing concern on the part of purchasers for food quality. The paper investigates whether farmer organisations are able to help small-scale farmers get access to supermarkets, and the role that supermarkets and public support play in their emergence and development. It is based on case studies involving a number of stakeholders marketing vegetables, flavoured rice and litchi fruit in Vietnam. The interviews investigated patterns of horizontal and vertical coordination that link farmers to supermarkets, the distribution of costs and benefits between farmers and traders along the chains in relation to the strategy of quality differentiation. Eight farmer associations that work in the form of private commercial organisations are regular supermarket suppliers for the selected products. Their ability to supply supermarkets is related to the combination of functions they make available to their members, especially as regards training to improve quality (appearance, taste, safety), quality promotion and control, for which they receive public support, as well as their participation in flexible contracts with supermarkets, shops and schools. Supermarket supply through farmer associations increases farmer incomes when compared with traditional chains, yet the situation is reported to change with the increase in supermarket competition. The paper argues that changes in farmer organisation are not only due to supplying supermarkets, but also to public and international support to food quality improvement, which have been of benefit to supermarkets.
Weingärtner, Erich, Weingärtner, Marilyn: Human rights is more than human rights
Creators: name: Grohs, Gerhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 2 (1978): Ökumenische Rundschau, Band 27, Heft 2
title: Analysis of Traffic Loads on Bridges: Report II Characteristics of Traffic on Ohio River Bridges
title: 1968
titleType: Subtitle
Creators: name: Lynch, Robert L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1969
Subjects: subject: Transportation Engineering

description: The recent bridge disaster at Point Pleasant, West Virginia, has renewed concern about the mechanism of material fatigue as a possible cause of catastrophic failure of bridge structures. A reasonable methodology for evaluating the fatigue condition of the highway bridge requires a knowledge of the distribution of traffic loads utilizing the facility during the analysis period. The accuracy of such an analysis is dependent on the accuracies of the input data -- material fatigue properties and traffic characteristics. The more critical of the above parameters, with respect to accuracy, appears to be traffic characteristics. This is especially true of vehicle weight characteristics since no loadometer surveys had been made at any Ohio River bridge location prior to this study.
Method to estimate ISCO and ring-down frequencies in binary systems and consequences for gravitational wave data analysis
Creators: name: Hanna, Chad
name: Megevand, Miguel
name: Ochsner, Evan
name: Palenzuela, Carlos
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent advances in the description of compact binary systems have produced gravitational waveforms that include inspiral, merger and ring-down phases. Comparing results from numerical simulations with those of post-Newtonian (PN), and related, expansions has provided motivation for employing PN waveforms in near merger epochs when searching for gravitational waves and has encouraged the development of analytic fits to full numerical waveforms. The models and simulations do not yet cover the full binary coalescence parameter space. For these yet un-simulated regions, data analysts can still conduct separate inspiral, merger and ring-down searches. Improved knowledge about the end of the inspiral phase, the beginning of the merger, and the ring-down frequencies could increase the efficiency of both coherent inspiral-merger-ring-down (IMR) searches and searches over each phase separately. Insight can be gained for all three cases through a recently presented theoretical calculation, which, corroborated by the numerical results, provides an implicit formula for the final spin of the merged black holes, accurate to within 10% over a large parameter space. Knowledge of the final spin allows one to predict the end of the inspiral phase and the quasinormal mode ring-down frequencies, and in turn provides information about the bandwidth and duration of the merger. In this work we will discuss a few of the implications of this calculation for data analysis.
description: Added references to section 3 14 pages 5 figures. Submitted to Classical and Quantum Gravity
Perfect simulation for a class of positive recurrent Markov chains
Creators: name: Connor, Stephen B.
name: Kendall, Wilfrid S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J65, 65C05, 68U20 (Primary)

description: This paper generalizes the work of Kendall [Electron. Comm. Probab. 9 (2004) 140--151], which showed that perfect simulation, in the form of dominated coupling from the past, is always possible (although not necessarily practical) for geometrically ergodic Markov chains. Here, we consider the more general situation of positive recurrent chains and explore when it is possible to produce such a simulation algorithm for these chains. We introduce a class of chains which we name tame, for which we show that perfect simulation is possible.
description: Published at http://dx.doi.org/10.1214/105051607000000032 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
BOLALAR KASALLIKLARI AMALIYOTIDA GENETIK FERMENTOPATIYALARNI TASHXISLASHNING DOLZARBLIGI
Creators: name: Aripov, A.N.
name: Aripov, O.A.
name: Sharofutdinov, K.Q.
Publisher: name: Zenodo
Year: 2024

description: Ma’lumki, Mukopolisaxaridozlar genetik nuqsonlar tufayli yuzaga keladigan noyob fermentopatiyalar bo‘lib, asosan lizosomal to‘planish kasalliklar guruhini  tashkil etadi. Ushbu guruh genetik nuqsonlarda kasallikning patogenezi sifatida glikozaminoglikanlarning parchalanishida ishtirok etadigan fermentlarning yetishmasligi keltiriladi. Ta’kidlangan fermentlar hujayralar yopishishi va hujayra signalizatsiyasi kabi jarayonlarda ishtirok etadigan uzun, shoxlanmagan polisaxaridlar hisoblanadi. Aynan parchalanmagan glikozaminoglikanlar mukopolisaxaridozlarning asosiy va bevosita sababi hisoblanadi va ushbu to'planish hujayralarda avtofagiya, apoptoz va mitoxondrial disfunksiya kabi og‘ir darajali holatlarga olib kelishi mumkin.
Lateral Distribution of Traffic on a Four-Lane and Six-Lane Section of I 75 South of Covington
Creators: name: Lynch, Robert L.
name: Hamby, Gary N.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1969
Subjects: subject: Transportation Engineering

description: With the increased construction of multilane highway facilities in the past few years, the need for establishing corresponding design and traffic operational criteria for these highways has resulted. This is especially true for rural, multilane facilities, since few of these highways are not, as yet, operating at a critical level of traffic service.  One area of traffic operational characteristics that has received very little attention in the past concerns the distribution of vehicles by lane on multilane highways. The capacity for these highways have been defined by the one-directional traffic volume rather than by the individual lane volumes. The distribution of the vehicle population on the individual traffic lanes would consequently influence the traffic volume level of capacity and. the vehicle operational level of service.  The purpose of the present report is to provide the basic information necessary for estimating design EAL's for each lane for multilane facilities, In addition, the effects of several local conditions on the relative lane usage are examined and discussed. Recommendations for additional study needed in this area and other related areas are presented. In all cases, usage of the relationships derived in this report must be made with the realization of the limitations of the data sources and analysis procedures. These limitations are identified and discussed throughout the report.
The Supply Chains of Organic Products: An Empirical Analysis of the Processing Sector in Six EU Mediterranean Regions
Creators: name: Banterle, Alessandro
name: Peri, Massimo
name: Banterle, Alessandro
name: Peri, Massimo
Publisher: name: Unknown
Year: 2007
Subjects: subject: Industrial Organization
subject: organic products
subject: processing and retailing
subject: food quality
subject: EU regions

description: The paper considers six EU Nuts II regions (Lombardy and Tuscany for Italy, Rhone-Alpes and Paca for France, Catalunya and Murcia for Spain) and studies the processing sector of organic products, investigating its links with agriculture and the retailing sector. The choice of these regions is due to the fact that the analysis is linked to a European project concerning cohesion among Mediterranean countries. The purpose is to analyze the processing sector of organic products in terms of firm capabilities to perform a quality management strategy and to analyze the vertical coordination in the organic supply chains. The survey was carried out on a sample of 304 firms stratified on the basis of the six regions involved in the study. Results showed the importance of the assurance of product safety and quality for organic-products processing-firms. The instruments for undergoing quality management are focused on specific regulations and controls. Specialized shops, direct sales, and supermarkets represent the main trade channels for organic products.
A quantum encryption design featuring confusion, diffusion, and mode of operation
Creators: name: Hu, Zixuan
name: Kais, Sabre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum cryptography -- the application of quantum computing techniques to cryptography has been extensively investigated. Two major directions of quantum cryptography are quantum key distribution (QKD) and quantum encryption, with the former focusing on secure key distribution and the latter focusing on encryption using quantum algorithms. In contrast to the success of the QKD, the development of quantum encryption algorithms is limited to designs of mostly one-time pads (OTP) that are unsuitable for most communication needs. In this work we propose a non-OTP quantum encryption scheme utilizing a quantum state creation process to encrypt messages. As essentially a non-OTP quantum block cipher the method stands out against existing methods with the following features: 1. complex key-ciphertext relation (i.e. confusion) and complex plaintext-ciphertext relation (i.e. diffusion); 2. mode of operation design for practical encryption on multiple blocks. These features provide key reusability and protection against eavesdropping and standard cryptanalytic attacks.
description: 2nd version with major revision
Demand for Non-Commodity Outputs from Spanish Extensive Agricultural Systems
Creators: name: Kallas, Zein
name: Gomez-Limon, Jose Antonio
name: Arriaza Balmón, Manuel
name: Kallas, Zein
name: Gomez-Limon, Jose Antonio
name: Arriaza Balmón, Manuel
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: Agricultural multifunctionality
subject: Economic valuation
subject: Choice experiments
subject: extensive agriculture
subject: Andalusia
subject: Castilla-Leon (Spain)

description: Agricultural multifunctionality is the recognition of the joint exercise of economic, environmental and social functions by this sector. In order to make this concept operative to support the design of public policies, it is necessary to estimate the social demand for such functions. The main objective of this article is to present two empirical applications in this line. For this purpose we have adopted the agricultural system of mountain olive groves in Andalusia (Southern Spain) at risk of abandonment after the decoupling of the EU subsidies and the agricultural system of cereal steppes in Tierra de Campos (North-western Spain). The economic valuation technique used is the Choice Experiment. The results suggest the existence of a significant demand for the different functions, although the demand is heterogeneous, depending on the socio-economic characteristics of the individuals surveyed.
S-branes and (Anti-)Bubbles in (A)dS Space
Creators: name: Astefanesei, Dumitru
name: Jones, Gregory C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe the construction of new locally asymptotically (A)dS geometries with relevance for the AdS/CFT and dS/CFT correspondences. Our approach is to obtain new solutions by analytically continuing black hole solutions. A basic consideration of the method of continuation indicates that these solutions come in three classes: S-branes, bubbles and anti-bubbles. A generalization to spinning or twisted solutions can yield spacetimes with complicated horizon structures. Interestingly enough, several of these spacetimes are nonsingular.
description: 35 pages, 12 figures. V2: JHEP style, expanded references
Economic Tools for Rural Health Planning
Creators: name: Doeksen, Gerald A.
name: Doeksen, Gerald A.
Publisher: name: Unknown
Year: 2007
Subjects: Health Economics and Policy

description: The full contribution of hospitals, clinics, pharmacies, etc to the rural economy often goes unrecognized. Quality health services are needed to attract businesses, and required for rural populations with a high proportion of elderly. This paper will share economic tools which can be used in any country to assist rural leaders in maintaining and advancing their health services. More specifically: 1. Health impact model to measure the economic impact of the health sector on a local economy 2. Community engagement tool to evaluate local health services; and 3. Health budget tools to determine the feasibility of a specific health service.
The effects of beta-cell mass and function, intercellular coupling, and islet synchrony on $\textrm{Ca}^{2+}$ dynamics
Creators: name: Saadati, Maryam
name: Jamali, Yousef
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Type 2 diabetes (T2D) is a challenging metabolic disorder characterized by a substantial loss of $β$-cell mass and alteration of $β$-cell function in the islets of Langerhans, disrupting insulin secretion and glucose homeostasis. The mechanisms for deficiency in $β$-cell mass and function during the hyperglycemia development and T2D pathogenesis are complex. To study the relative contribution of $β$-cell mass to $β$-cell function in T2D, we make use of a comprehensive electrophysiological model of human $β$-cell clusters. We find that defect in $β$-cell mass causes a functional decline in single $β$-cell, impairment in intra-islet synchrony, and changes in the form of oscillatory patterns of membrane potential and intracellular $\textrm{Ca}^{2+}$ concentration, which can lead to changes in insulin secretion dynamics and in insulin levels. The model demonstrates a good correspondence between suppression of synchronizing electrical activity and published experimental measurements. We then compare the role of gap junction-mediated electrical coupling with both $β$-cell synchronization and metabolic coupling in the behavior of $\textrm{Ca}^{2+}$ concentration dynamics within human islets. Our results indicate that inter-$β$-cellular electrical coupling depicts a more important factor in shaping the physiological regulation of islet function and in human T2D. We further predict that varying the whole-cell conductance of delayed rectifier $\textrm{K}^{+}$ channels modifies oscillatory activity patterns of $β$-cell population lacking intercellular coupling, which significantly affect $\textrm{Ca}^{2+}$ concentration and insulin secretion.
Expected public and private benefits of embedding farm business performance systems in the Australian and New Zealand dairy industries
Creators: name: Ronan, Glenn
name: Ronan, Glenn
Publisher: name: Unknown
Year: 2007
Subjects: Farm Management

description: Dairy industry organizations, universities and government agencies are variously involved in embedding web-based, standardized farm business performance systems in the Australian and New Zealand industries. The spectrum of involvement prompts an exploration of demand drivers and expectations of benefits, public and private. Inclusion of South Australian dairy businesses in a web data system as part of implementing the South Australian dairy industry strategic plan is discussed as an example where public and private benefits are expected. To the extent that adoption of the web as a data management platform is an aid to dialogue in the public-private partnership of industry development more detailed research about the systems and their benefits to stakeholders is merited.
Brev april 1863
Creators: name: Behrens, Johan Diederich (1820-1890)
name: Thuesen, C.
name: Hummelstad, H.
name: Wasserfall, K
name: Blichfeldt, F. E.
name: Hansen, H. E.
name: Udbye, Martin Andreas (1820-1889)
Publisher: name: Unknown
Year: 0

description: Her en historie om "Dagen er oppe", om hvor godt likt den er og har vært i Bergen, og at den nå første gang skal synges i Trondheim til Sangerfesten der, 20 år etter Bergen.
Modeling environmental risk and land management trade-offs in the Great Barrier Reef catchment
Creators: name: Mallawaarachchi, Thilak
name: Mazur, Kasia
name: Lawson, Kenton
name: Mallawaarachchi, Thilak
name: Mazur, Kasia
name: Lawson, Kenton
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: non-point source pollution
subject: water quality
subject: land use
subject: cost-effectiveness
subject: coastal zone management

description: We develop a catchment scale modeling framework to identify cost-effective strategies for joint onsite abatement and offsite mitigation of land-based pollution from agricultural activities that pose a risk to water quality in the Great Barrier Reef (GBR). An illustrative example of the Barron catchment in north Queensland is used to demonstrate an approach to specify social planner's problem for non-point source pollution management as a cost minimisation model to meet a specified reduction in land-based pollution emissions at the receiving waters of GBR. We focus on the tradeoffs between onsite pollution control and offsite pollution mitigation under a collective contract for nutrient reduction at a sub-catchment level and discuss implementation options.
Integrating automated acoustic vocalization data and point count surveys for estimation of bird abundance
Creators: name: Doser, Jeffrey W.
name: Finley, Andrew O.
name: Weed, Aaron S.
name: Zipkin, Elise F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Monitoring wildlife abundance across space and time is an essential task to study their population dynamics and inform effective management. Acoustic recording units are a promising technology for efficiently monitoring bird populations and communities. We present an integrated modeling framework that combines high-quality but temporally sparse bird point count survey data with acoustic recordings. Using simulations, we compare the accuracy and precision of abundance estimates using differing amounts of acoustic vocalizations obtained from a clustering algorithm, point count data, and a subset of manually validated acoustic vocalizations. We also use our modeling framework in a case study to estimate abundance of the Eastern Wood-Pewee (Contopus virens) in Vermont, U.S.A. The simulation study reveals that combining acoustic and point count data via an integrated model improves accuracy and precision of abundance estimates compared with models informed by either acoustic or point count data alone. Combining acoustic data with only a small number of point count surveys yields estimates of abundance without the need for validating any of the identified vocalizations from the acoustic data. Within our case study, the integrated models provided moderate support for a decline of the Eastern Wood-Pewee in this region. Our integrated modeling approach combines dense acoustic data with few point count surveys to deliver reliable estimates of species abundance without the need for manual identification of acoustic vocalizations or a prohibitively expensive large number of repeated point count surveys. Our proposed approach offers an efficient monitoring alternative for large spatio-temporal regions when point count data are difficult to obtain or when monitoring is focused on rare species with low detection probability.
description: 25 pages, 4 figures
Are Country of Origin and Non-GM Premiums Invariant to Experimental Auction Structure?
Creators: name: Volinskiy, Dmitriy
name: Adamowicz, Wiktor L.
name: Veeman, Michele M.
name: Srivastava, Lorie
name: Volinskiy, Dmitriy
name: Adamowicz, Wiktor L.
name: Veeman, Michele M.
name: Srivastava, Lorie
Publisher: name: Unknown
Year: 2007
Subjects: subject: Demand and Price Analysis
subject: Willingness to pay
subject: incentive compatible
subject: Becker-DeGroot-Marschak auction procedure
subject: non-GM food
subject: country of origin
subject: canola oil

description: A revealed preference auction experiment is used to elicit values for two attributes, one relating to genetic modification and the other to country of origin of the food product, canola oil. A premium for a non-GM canola oil is found to approximate CA$0.4 to $0.6 per litre. Auction format effects are found and hypotheses as to why these may occur are suggested.
Understanding rural life - assessing the social dimensions when encouraging land-use changes in rural areas
Creators: name: Race, Digby
name: Farquharson, Robert J.
name: Birckhead, Jim
name: Vernon, Don
name: Bathgate, Andrew D.
name: Race, Digby
name: Farquharson, Robert J.
name: Birckhead, Jim
name: Vernon, Don
name: Bathgate, Andrew D.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Land Economics/Use
subject: Social
subject: natural resource management
subject: land-use change
subject: Boorowa

description: Meshed with the bio-physical and economic dimensions of rural land-use is a social dimension. Understanding the social and economic dimension of rural communities is critical if agencies are to develop effective policies and programs to improve natural resource outcomes. In this paper, we draw on research of the Boorowa community, located in the south-west slopes of New South Wales, to help understand how social changes in rural communities are impacting natural resource management in the Boorowa district. This included: *Identifying the catalysts for changing land-use in the Boorowa catchment, *Presenting an effective and efficient methodology for assessing the social and economic impacts of changes in land use at the catchment scale, *Identifying feasible and socially-acceptable pathways to achieve change in landuse to manage dryland salinity. The research process involved assessing data availability for construction of social and landholder profiles, conducting workshops with different community groups to explore their long-term goals and concerns about salinity, and developing indicators of social processes and progress that Catchment Management Authorities might be able to use in their decision-making processes.
Economics of Smallholder Rubber Production in Northern Laos
Creators: name: Manivong, Vongpaphane
name: Cramb, Rob A.
name: Manivong, Vongpaphane
name: Cramb, Rob A.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: smallholder rubber
subject: Laos
subject: commercialisation
subject: bioeconomic modelling
subject: land-use change

description: In response to demand from China, rubber smallholdings are being established by shifting cultivators in Northern Laos, encouraged by government land-use policy. We examine the economics of smallholder rubber production in an established rubbergrowing village and model the likely expansion of smallholder rubber in Northern Laos. Data were obtained from key informants, group interviews, direct observation, and a farm-household survey. Latex yields were estimated using the Bioeconomic Rubber Agroforestry Support System (BRASS). A financial model was developed to estimate the net present value for a representative rubber smallholding. This model was then combined with spatial data in a Geographical Information System (GIS) to predict the likely expansion of rubber based on resource quality and accessibility.
On a supersymmetric completion of the $R^4$ term in type IIB supergravity
Creators: name: Rajaraman, Arvind
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the question of the supersymmetric completion of the $R^4$ term in type IIB supergravity by using superfield methods. We show that while there is an obstruction to constructing the full action, a subset of the terms in the action can be consistently analyzed independent of the other terms, and these can be obtained from the superfield. We find the complete type IIB action involving the curvature and five-form field strengths.
description: References added
Magnetic-field-induced transition from metastable spin glass to possible antiferromagnetic-ferromagnetic phase separation in $Cd_{0.5}Cu_{0.5}Cr_2O_4$
Creators: name: Yan, Li-qin
name: Yin, Wen
name: Maciá, Ferran
name: Zhang, Jun-rong
name: He, Lun-hua
name: Wang, Fang-wei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using ac susceptibility, dc magnetization and heat capacity measurements, we have investigated the magnetic properties of $Cd_{0.5}Cu_{0.5}Cr_2O_4$. $Cd_{0.5}Cu_{0.5}Cr_2O_4$ has an extraordinary magnetic phase including a metastable spin-glass(SG) phase at zero field, a possible phase separation scenario of AFM/FM above $\sim 0.5T$ field, and at intermediate fields, an apparent pseudo reentrant spin-glass (RSG) plateau is observed. These phenomena are closely correlated with the pinning effect of the $Cu^{2+}$ sublattice on the frustrated lattice.
description: one tex,4 figures, 1 bib
No-birefringence conditions for spacetime
Creators: name: Itin, Yakov
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Within the axiomatic premetric approach to classical electrodynamics, we derive under which covariant conditions the quartic Fresnel surface represents a unique light cone without birefringence in vacuum.
description: 2.7 pages