cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effective Actions for Massive Kaluza-Klein States on AdS_3 x S^3 x S^3
Creators: name: Hohm, Olaf
name: Samtleben, Henning
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the effective supergravity actions for the lowest massive Kaluza-Klein states on the supersymmetric background AdS_3 x S^3 x S^3. In particular, we describe the coupling of the supergravity multiplet to the lowest massive spin-3/2 multiplet which contains 256 physical degrees of freedom and includes the moduli of the theory. The effective theory is realized as the broken phase of a particular gauging of the maximal three-dimensional supergravity with gauge group SO(4) x SO(4). Its ground state breaks half of the supersymmetries leading to 8 massive gravitinos acquiring mass in a super Higgs effect. The holographic boundary theory realizes the large N=(4,4) superconformal symmetry.
description: 31 pages, v2: minor changes
Cosmological constraints from Gauss-Bonnet braneworld with large-field potentials
Creators: name: Kim, Kyong Hee
name: Myung, Yun Soo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the spectral index and tensor-to-scalar ratio for patch inflation defined by $H^2\approx β^2_q V^q$ and $\dotϕ\approx -V'/3H$, using the slow-roll expansion. The patch cosmology arisen from the Gauss-Bonnet braneworld consists of Gauss-Bonnet (GB), Randall-Sundrum (RS), and 4D general relativistic (GR) cosmological models. In this work, we choose large-field potentials of $V=V_0ϕ^p$ to compare with the observational data. Since second-order corrections are rather small in the slow-roll limit, the leading-order calculation is sufficient to compare with the data. Finally, we show that it is easier to discriminate between quadratic potential and quartic potential in the GB cosmological model rather than the GR or RS cosmological models.
description: 13 pages, title changed, version to appear in JCAP
Expected Changes in China's Grain and Oilseed Industries and Implications for the U.S. and World Agriculture
Creators: name: Taylor, Richard D.
name: Koo, Won W.
name: Taylor, Richard D.
name: Koo, Won W.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Demand and Price Analysis
subject: Industrial Organization
subject: International Development
subject: spatial optimization
subject: China
subject: demand
subject: supply
subject: trade
subject: agricultural commodities

description: A spatial optimization model was developed to analyze the impacts of structural changes in China’s consumption of wheat, corn, rice, and soybeans on its agricultural sector and world agricultural trade. The model included 16 exporting and importing countries and regions. China was divided into 31 provinces and the United States into 24 producing regions and 10 consuming regions. The model optimizes agricultural production and distribution systems to meet the predicted demand for grains and oilseeds in 2020 under several assumptions associated with technical progress in producing the grains and oilseeds in China, the United States, and other countries.
Reference study of IFC software support: the GeoBIM benchmark 2019 -- Part I
Creators: name: Noardo, Francesca
name: Krijnen, Thomas
name: Ohori, Ken Arroyo
name: Biljecki, Filip
name: Ellul, Claire
name: Harrie, Lars
name: Eriksson, Helen
name: Polia, Lorenzo
name: Salheb, Nebras
name: Tauscher, Helga
name: van Liempt, Jordi
name: Goerne, Hendrik
name: Hintz, Dean
name: Kaiser, Tim
name: Leoni, Cristina
name: Warchol, Artur
name: Stoter, Jantien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: IFC, buildingSMART open standard for Building Information Models, is underused with respect to its promising potential, since, according to the experience of practitioners and researchers working with BIM, issues in the standard's implementation and use prevent its effective use. Nevertheless, a systematic investigation of these issues has never been performed, and there is thus insufficient evidence for tackling the problems. The GeoBIM benchmark project is aimed at finding such evidence by involving external volunteers, reporting on tools behaviour about relevant aspects (geometry, semantics, georeferencing, functionalities), analysed and described in this paper. Interestingly, few patterns are detectable about the behaviour of different software with standardised data, and significant issues are found in their support of the standards, probably due to the very high complexity of the standard data model. This paper is in tandem with Part II, describing the results of the benchmark related to CityGML, counterpart of IFC within geoinformation.
description: Pre-print of the paper. arXiv admin note: text overlap with arXiv:2007.10938
An infrared study of galactic OH/IR stars. I. An optical/near-IR atlas of the Arecibo sample
Creators: name: Jiménez-Esteban, F. M.
name: Agudo-Mérida, L.
name: Engels, D.
name: García-Lario, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we present optical and near-infrared finding charts, accurate astrometry (~1") and single-epoch near-infrared photometry for 371 IRAS sources, 96% of those included in the so-called Arecibo sample of OH/IR stars (Eder et al. 1988; Lewis et al. 1990a; Chengalur et al. 1993). The main photometric properties of the stars in the sample are presented and discussed as well as the problems found during the process of identification of the optical/near-infrared counterparts. In addition, we also identify suitable reference stars in each field to be used for differential photometry purposes in the future. We find that 39% of the sources (144 in number) have no optical counterpart, 8 of them being invisible even at near infrared wavelengths. The relative distribution of sources with and without optical counterpart in the IRAS two-colour diagram and their characteristic near infrared colours are interpreted as the consequence of the increasing thickness of their circumstellar shells. Among the objects not detected at near infrared wavelengths four non-variable sources are proposed to be heavily obscured post-AGB stars which have just very recently left the AGB. Eight additional objects with unusually bright and/or blue near-infrared colours are identified as candidate post-AGB stars and/or proto-planetary nebulae.
description: 28 pages, 9 figures, for associated finding charts see: http://www.edpsciences.org/articles/aa/full/2005/08/aa1709/FINDING_CHARTS/are cibo_index.html
Complex Langevin: Boundary terms at poles
Creators: name: Seiler, Erhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We discuss the problem of possible boundary terms at poles of the drift in the complex Langevin method, which spoil correctness of the method. For the simplest, however paradigmatic cases we can find complete answers. Lessons for more generic cases as well as open mathematical problems are discussed.
description: 17 pages, 5 figures. Section 6.2. and some eferences added; several typos corrected. Version as published
Additional file 6 of NeuroConstruct-based implementation of structured-light stimulated retinal circuitry
Creators: name: Elbaz, Miriam
name: Buterman, Rachel
name: Tsur, Elishai Ezra
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 6. Code example 4: General functions.
Non-iterative complex wave-field reconstruction based on Kramers-Kronig relations
Creators: name: Shen, Cheng
name: Pan, An
name: Liang, Mingshu
name: Yang, Changhuei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A new computational imaging method to reconstruct the complex wave-field is reported. Due to the existence of zero frequency component, the measured signal by amplitude modulation of pupil has a spectrum similar to the one of off-axis hologram. The mathematical analogy between them is established in this paper. Based on this observation and analyticity of band-limited signal under any diffraction-limited system, an algorithm from Kramers-Kronig (KK) relations is utilized to recover the phase information only from the intensity patterns. From the sensing side, only two measurements are required at least. From the reconstruction algorithm side, our method is iteration-free and parameter-free, also without any assumption on sample characteristics. It owns several advantages over existing phase imaging methods and could provide a unique perspective to understand current computational imaging methods.
ACEL Industry News Update - How and why educators use research and evidence
Creators: name: Gleeson, Jo
name: Rickinson, Mark
name: Walsh, Lucas
name: Cutler, Blake
name: Cirkony, Connie
name: Salisbury, Mandy
Publisher: name: Monash University
Year: 2022
Subjects: subject: 130304 Educational Administration, Management and Leadership
subject: FOS: Educational sciences
subject: Education
subject: 130313 Teacher Education and Professional Development of Educators

description: Article published by the Monash Q Project for the Australian Council for Educational Leaders (ACEL) Industry News Update June 2021.
The article addresses "how" and "why" educators use research and evidence, sharing insights and findings from research conducted by the Monash Q Project.
Finding a sustainable linkage between the emerging farmer and formal markets: The case of pick ‘n pay and the Zanyokwe farmers in the eastern Cape of South Africa
Creators: name: Bediako, J.A.
name: Debrah, Kofi
name: Bediako, J.A.
name: Debrah, Kofi
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods

description: A major problem confronting rural and emerging farmers is the marketing of their products. Most of the farmers encountered depend on the local or village markets which are often saturated or purchases are not backed by effective demand to make sales meaningful for the desired benefits. Small scale South African farmers have not been able to access the formal sector to sell their goods. There are several reasons for this which is linked to the nature of the historical evolution of the South African agricultural sector and in particular the food production system. Recently, it has been argued that the small scale farmers are not able to meet the standards that are set by the formal sector and are therefore responsible for their own exclusion by producing poor quality products. The private sector is not aware of the capabilities of the small scale African farmers. Consequently the private sector is unable to communicate its needs to this group of emergent farmers. This paper presents information and findings of the Case Study project of how the gap has been bridged from both ends of the production chain about needs of business and the small scale or emerging farmer which has led to finding a sustainable marketing linkage between the rural farmer and the private sector. Keywords: Farmers, Markets, Products, Supermarkets,
Agricultural Value Chain Development in West Africa – Methodological framework and case study of mango in Benin
Creators: name: Van Melle, Cathelijne
name: Coulibaly, Ousmane
name: Hell, Kerstin
name: Van Melle, Cathelijne
name: Coulibaly, Ousmane
name: Hell, Kerstin
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: International Development
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Benin
subject: Mango
subject: Value chain
subject: West Africa

description: Globalization and competitiveness of agricultural commodities could have significant potential benefits for food security and poverty reduction in West Africa. Participation in global trade and economy is potentially important but not enough to ensure benefits at all levels of the chains and equitable distribution of income for each participant. Efficiency is key in the commodity value chain, but effective support functions and services, infrastructure, legal and policy environment are important. This paper presents the framework of value chain concept and analysis, as a guide to enhance competitiveness of commodities at national, regional or global level. The paper applies the value chain framework to a case study on mango in Benin, West Africa. The international market for mango is characterized by stringent quality requirements regarding fruit flies. This needs to be addressed as a key value chain challenge for competitiveness of the commodity in Benin and West Africa.
Unusual Dielectric Relaxation in Lightly Doped n-Type Rhombohedral BaTi0.85Zr0.15O3:Ta Ferroelectric Ceramics
Creators: name: Xu, Jun
name: Itoh, Mitsuru
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dielectric properties of tantalum doped BaTi0.85Zr0.15O3 were investigated. The conventional solid state reaction method was used to make the ceramic samples. The composition was close to the pinch point of the three structure phase transitions in BaTiO3. Powder X-ray diffraction result indicated that the samples were in very slightly distorted rhombohedral structure at room temperature, and the dielectric measurement showed only cubic-to-rhombohedral phase transition occurred. Instead of a sharp peak characteristic of a ferroelectric (FE) transition, the large dielectric response was similar to those in nonferroelectric perovskites CaCu3Ti4O12, AFe1/2B1/2O3 (A=Ba, Sr, Ca; B=Nb, Ta, Sb) and IBLC (Internal Barrier Layer Capacitance) BaTiO3 based FE ceramics. However, unlike its FE analogue, the conventional BaTiO3 based IBLC ceramics, our samples showed weaker temperature dependence of relative permittivity which spans over a wide temperature range. A Maxwell-Wagner type relaxation in the FE state was observed. Moreover, another relaxation mode appears from the vicinity of FE phase transition temperature TC, and extends over a narrow temperature range, with unusual slowing down of relaxation rate as temperature rises, which is contrary to what is commonly observed. We associate these unusual phenomena with the very slightly distorted rhombohedral structure of our samples and the presence of the grain boundary barrier layer where oxygen vacancies distribute non-homogeneously.
description: 19 pages, 6 figures, to appear in Chem. Mater. (May 3, 2005). http://dx.doi.org/10.1021/cm050145a
Patterns of restructuring food markets in South Africa: The case of fresh produce supply chains
Creators: name: Chikazunga, Davison
name: Joordan, D.
name: Bienabe, Estelle
name: Louw, Andre
name: Chikazunga, Davison
name: Joordan, D.
name: Bienabe, Estelle
name: Louw, Andre
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Relations/Trade
subject: Land Economics/Use
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods

description: The restructuring process of the food markets in South Africa is at an advanced stages of consolidation and the emergence dominance of few supermarket chains expanding into non-traditional areas, through franchise format stores and forecourt stores overtaking informal wet markets and green grocers. The growth has been followed by consolidation of the procurement system from a decentralised to a centralised procurement and distribution mechanism replacing the wholesaling function of the National Fresh Produce Markets. The growth in disposable income, , population growth and urbanization have fuelled the demand food outlets like supermarkets which in turn fuels innovations and dynamic changes surrounding supermarkets Keywords: Fresh produce, Procurement, South Africa
Generalized symmetries and holography in ABJM-type theories
Creators: name: Bergman, Oren
name: Tachikawa, Yuji
name: Zafrir, Gabi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the N=6 superconformal Chern-Simons-matter theories and their supergravity duals in the context of generalized symmetries. This allows us to finally clarify how the $SU(N)\times SU(N)$ and $(SU(N)\times SU(N))/\mathbb{Z}_N$ theories, as well as other quotient theories that have recently been discussed, fit into the holographic framework. It also resolves a long standing puzzle regarding the di-baryon operator in the $U(N)\times U(N)$ theory.
description: 27 pages
Confinement and center vortices in Coulomb gauge: analytic and numerical results
Creators: name: Greensite, Jeff
name: Olejnik, Stefan
name: Zwanziger, Daniel
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We review the confinement scenario in Coulomb gauge. We show that when thin center vortex configurations are gauge transformed to Coulomb gauge, they lie on the common boundary of the fundamental modular region and the Gribov region. This unifies elements of the Gribov confinement scenario in Coulomb gauge and the center-vortex confinement scenario. We report on recent numerical studies which support both of these scenarios.
description: Talk given at QCD Down Under, Adelaide, Australia, March 10-19, 2004. 6 pages. 6 figures
Competitiveness and revealed comparative advantage in the SADC maize industry
Creators: name: Mutambatsere, Emelly
name: Mutambatsere, Emelly
Publisher: name: Unknown
Year: 2008
Subjects: subject: Community/Rural/Urban Development
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods

description: This paper evaluates the production and trade trends for maize and maize products in southern Africa, individual countries’ revealed comparative advantages in producing these products, and the expected implications of freer trade in this sector. The analysis employs mainly annual bilateral trade data for the period 1996-2004, evaluated using comprehensive descriptive measures and the Revealed Comparative Advantage index. Results indicate that at least half of the countries in the SADC region are deficit producers of maize and maize products, and that only South Africa is a net exporter of all products considered. Substantial cross-hauling is observed, and the bulk of locally produced products are traded regionally, with over 90% regional bias for half of all positive trade, although specific opportunities for increased regional trade also exist. Tariff protection generally lies below rates observed elsewhere in the world for this sector; however, for half of the region, consistent non-tariff measures also are maintained. Regional competitiveness in production is restricted to a few countries that possess the capacity to produce and export significant quantities; and with the exception of those countries, the region as a whole lacks net comparative advantage in maize and maize flour production by global standards. These results suggest a need for concurrent policy interventions to improve production, regional and international trade. Food security strategies focusing solely on improving regional trade, while beneficial to specific regional producers, are unlikely to produce major food security benefits. Keywords: Comparative Advantage, Competitiveness, Maize, SADC,
Is MOOC Learning Different for Dropouts? A Visually-Driven, Multi-granularity Explanatory ML Approach
Creators: name: Alamri, Ahmed
name: Sun, Zhongtian
name: Cristea, Alexandra I.
name: Senthilnathan, Gautham
name: Shi, Lei
name: Stewart, Craig
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Millions of people have enrolled and enrol (especially in the Covid-19 pandemic world) in MOOCs. However, the retention rate of learners is notoriously low. The majority of the research work on this issue focuses on predicting the dropout rate, but very few use explainable learning patterns as part of this analysis. However, visual representation of learning patterns could provide deeper insights into learners' behaviour across different courses, whilst numerical analyses can -- and arguably, should -- be used to confirm the latter. Thus, this paper proposes and compares different granularity visualisations for learning patterns (based on clickstream data) for both course completers and non-completers. In the large-scale MOOCs we analysed, across various domains, our fine-grained, fish-eye visualisation approach showed that non-completers are more likely to jump forward in their learning sessions, often on a 'catch-up' path, whilst completers exhibit linear behaviour. For coarser, bird-eye granularity visualisation, we observed learners' transition between types of learning activity, obtaining typed transition graphs. The results, backed up by statistical significance analysis and machine learning, provide insights for course instructors to maintain engagement of learners by adapting the course design to not just 'dry' predicted values, but explainable, visually viable paths extracted.
description: Intelligent Tutoring Systems. ITS 2020. Lecture Notes in Computer Science, vol 12149
Optimizing at the Ergodic Edge
Creators: name: Boettcher, Stefan
name: Frank, Martin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Using a simple, annealed model, some of the key features of the recently introduced extremal optimization heuristic are demonstrated. In particular, it is shown that the dynamics of local search possesses a generic critical point under the variation of its sole parameter, separating phases of too greedy (non-ergodic, jammed) and too random (ergodic) exploration. Comparison of various local search methods within this model suggests that the existence of the critical point is essential for the optimal performance of the heuristic.
description: RevTex4, 17 pages, 3 ps-figures incl., for related information, see http://www.physics.emory.edu/faculty/boettcher/publications.html
Comparision of constant retort temperature and variable retort temperature thermal processes for quality improvement or cost reduction of conduction-heated canned foods
Creators: name: Xiang, Bob Yongsheng
Publisher: name: University of British Columbia
Year: 2009

description: Almost all commercial retort processes for canned foods use constant retort temperature (CRT) process. However, variable retort temperature (VRT) process, as one of the potential technologies to improve both the economy and quality of some canned foods, has been receiving increasing attention. The VRT process has been shown to be very promising in this regard, especially in improving food quality and reducing process time. The surface color is an important quality attribute of canned foods. Discoloration and browning of canned foods are the results of various reactions, including Maillard reaction. Heat treatment affects the surface color of canned foods. Surface color changes measured by HunterLab are used to predict both chemical and quality changes in canned foods. In this study I examined the surface color change characteristics of macaroni and cheese (MC). Surface color change of MC followed first order reactions and D values of the surface color change and z value of the surface color change were measured. This study evaluated the application of the "Retort" program and the random centroid optimization (RCO) program for modeling and optimization of VRT thermal processing for conduction-heated foods. This study tested whether canned macaroni and cheese (MC) surface quality would be improved or process times decreased by using the optimal VRT process as compared with the optimal CRT process. From this study, I concluded that the optimal VRT process was superior. It improved the surface quality (i.e., reduced the surface cook value by 8.9-11.2 %) or reduced the process time by 23.6-34.2 % compared with the optimal CRT process.
Knots and Non-Hermitian Bloch Bands
Creators: name: Hu, Haiping
name: Zhao, Erhai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Knots have a twisted history in quantum physics. They were abandoned as failed models of atoms. Only much later was the connection between knot invariants and Wilson loops in topological quantum field theory discovered. Here we show that knots tied by the eigenenergy strings provide a complete topological classification of one-dimensional non-Hermitian (NH) Hamiltonians with separable bands. A $\mathbb{Z}_2$ knot invariant, the global biorthogonal Berry phase $Q$ as the sum of the Wilson loop eigenphases, is proved to be equal to the permutation parity of the NH bands. We show the transition between two phases characterized by distinct knots occur through exceptional points and come in two types. We further develop an algorithm to construct the corresponding tight-binding NH Hamiltonian for any desired knot, and propose a scheme to probe the knot structure via quantum quench. The theory and algorithm are demonstrated by model Hamiltonians that feature for example the Hopf link, the trefoil knot, the figure-8 knot and the Whitehead link.
description: 8+10 pages, 3+4 figures
Additional file 5 of NeuroConstruct-based implementation of structured-light stimulated retinal circuitry
Creators: name: Elbaz, Miriam
name: Buterman, Rachel
name: Tsur, Elishai Ezra
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 5. Code example 4: Expanding light stimulation.
D2.3.13: Initial data on the nutritional composition of traditional foods
Creators: name: National Institute of Health Dr. Ricardo Jorge
Publisher: name: Zenodo
Year: 2008
Subjects: NoE and NEXUS Projects
The EuroFIR Food Platform
EuroFIR

description: Deliverable or Milestone reference number and title

D2.3.13: Initial data on the nutritional composition of traditional foods
Trade Liberalization in the South African Livestock Industry: implications for rural development
Creators: name: Oyewumi, Olubukola Ayodeju
name: Jooste, Andre
name: Britz, Wolfgang
name: Van Schalkwyk, Herman D.
name: Oyewumi, Olubukola Ayodeju
name: Jooste, Andre
name: Britz, Wolfgang
name: Van Schalkwyk, Herman D.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods

description: Livestock farming is an important facet of agriculture and livelihood in South Africa. It forms the essence of rural agriculture contributing food, socio-economic stability, employment and income. After the liberalization of the agricultural sector and phasing out of past protection mechanisms South Africa introduced a process of tariff reform. Furthermore, a system of tariff rate quotas was introduced in compliance with WTO regulations. A partial equilibrium comparative static model was used to investigate the impact of further liberalization in the livestock industry of South Africa, particularly in meat products using four policy scenarios. Specific emphasis was given to the liberalization of the current TRQ regime. The implication of the results are that the development efforts by government aimed at commercializing emerging commercial stock farming in order to address equity and poverty may be slowed down considerably with further trade liberalization; especially since substitution with other agricultural enterprises are limited. The conclusion is that the expansion in current quotas might be a more proper policy directive than reducing applied tariffs over the short to medium run to comply with trade liberalization targets as well as WTO commitments. The reason for this is that quota expansion brings about moderate changes in domestic prices of livestock and meat products as compared to tariff reductions.
Search for D0-D0bar Mixing Using Semileptonic Decay Modes
Creators: name: Aubert, B.
name: Collaboration, BABAR
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Based on an 87-fb$^{-1}$ dataset collected by the Babar detector at the PEP-II asymmetric-energy $B$-Factory, a search for $D^{0}$--$\bar{D}^{0}$ mixing has been made using the semileptonic decay modes $D^{*+} \to π^{+} D^{0}, D^{0} \to K^{(*)}eν$ (+c.c.). The use of these modes allows unambiguous flavor tagging and a combined fit of the $D^{0}$ decay time and $D^{*+}$--$D^{0}$ mass difference ($ΔM$) distributions. The high-statistics sample of unmixed semileptonic $D^{0}$ decays is used to model the $ΔM$ distribution and time-dependence of mixed events directly from the data. Neural networks are used to select events and reconstruct the $D^{0}$. A result consistent with no charm mixing has been obtained, $R_{\rm{mix}}=0.0023 \pm 0.0012 \pm 0.0004$. This corresponds to an upper limit of $R_{\rm{mix}}<0.0042$ (90% CL).
description: submitted to Phys. Rev. D (Rapid Communications)
Characterisation of the $b^3Σ^+, v=0$ State and Its Interaction with the $A^1Π$ State in Aluminium Monofluoride
Creators: name: Doppelbauer, Maximilian
name: Walter, Nicole
name: Hofsäss, Simon
name: Marx, Silvio
name: Schewe, H. Christian
name: Kray, Sebastian
name: Pérez-Ríos, Jesús
name: Sartakov, Boris G.
name: Truppe, Stefan
name: Meijer, Gerard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Recently, we determined the detailed energy level structure of the $X^1Σ^+$, $A^1Π$ and $a^3Π$ states of AlF that are relevant to laser cooling and trapping experiments. Here, we investigate the $b^3Σ^+, v=0$ state of the AlF molecule. A rotationally-resolved (1+2)-REMPI spectrum of the $b^3Σ^+, v'=0 \leftarrow a^3Π, v''=0$ band is presented and the lifetime of the $b^3Σ^+, v=0$ state is measured to be 190(2)~ns. Hyperfine-resolved, laser-induced fluorescence spectra of the $b^3Σ^+, v'=0 \leftarrow X^1Σ^+, v''=1$ and the $b^3Σ^+, v'=0 \leftarrow a^3Π, v''=0$ bands are recorded to determine fine- and hyperfine structure parameters. The interaction between the $b^3Σ^+, v=0$ and the nearby $A^1Π$ state is studied and the magnitude of the spin-orbit coupling between the two electronic states is derived using three independent methods to give a consistent value of 10(1)~cm$^{-1}$. The triplet character of the $A$ state causes an $A\rightarrow a$ loss from the main $A-X$ laser cooling cycle below the 10$^{-6}$ level.
description: 22 pages, 8 figures
Machines That Understand: A Theoretical Survey of Deep Learning's Role in Shaping Natural Language Processing
Creators: name: Boddula, Vasisht
Publisher: name: Zenodo
Year: 2025

description: This theoretical survey explores how deep learning—particularly Transformer architectures like BERT and GPT—has transformed Natural Language Processing (NLP). It discusses semantic modelling, ethical concerns like bias and interpretability, and outlines a roadmap for responsible future research in NLP.
Compétitivité de la filière anacarde au Bénin: une analyse des effets aux prix de référence
Creators: name: Oloukoi, L.
name: Adegbola, Patrice Ygue
name: Oloukoi, L.
name: Adegbola, Patrice Ygue
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy

description: La politique agricole du Bénin connaît depuis quelques années, de profonds changements. En effet, les différentes imperfections du marché et les risques liés à la monoculture ont amené l’Etat à opter pour une diversification agricole. Ainsi, neuf (09) filières dont la filière anacarde sont identifiées comme prioritaires. Cette étude utilise la Matrice d’Analyse des Politiques (MAP) pour évaluer la compétitivité des différents segments de la filière anacarde au Bénin. A cet effet, une enquête quantitative est menée auprès des différents acteurs à savoir 198 producteurs, 61 commerçants et 7 transformateurs. Les résultats issus de l’étude montrent que les systèmes de production, de commercialisation et de transformation de la filière sont tous compétitifs. Les systèmes de production les plus compétitifs sont ceux utilisant les plantules issues de sélection des semences améliorées comme mode de semi de l’anacarde. L’étude conclut aussi que la filière avec le système de transformation voit sa compétitivité s’améliorée. Par contre, le système de commercialisation, dans son organisation actuelle ne favorise pas les producteurs. De tout ce qui précède, il est à retenir que toute politique de diversification orientée vers le développement de la filière anacarde sera bénéfique pour les acteurs concernés et pour la nation. Cette politique devra surtout viser à amener les producteurs à pratiquer les systèmes de production les plus compétitifs et à résorber les divergences d’intérêts observées entre les producteurs qui sont les plus grands perdants et les commerçants.
Cereal price instability in Ethiopia: An examination of sources and policy options
Creators: name: Shahidur, Rashid
name: Meron, Assefa
name: Shahidur, Rashid
name: Meron, Assefa
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Cereal
subject: Policy
subject: Price instability
subject: Ethiopia

description: Managing food price instability is a long standing policy challenge, which, with mixed experiences of agricultural price policy reforms, has re-emerged as a contemporary policy issue. This is particularly true for Ethiopia, where managing food price stability continues to be a formidable policy challenge. The objective of this paper is to examine the underlying causes of cereal price instabilities and to assess the policy options to manage them. It undertakes three tasks: (a) analyzes the sources and degree of cereal price instability, (b) discusses the viability of various policy options, and (c) critically reviews the country’s past, ongoing, and emerging policies for food price stabilization. The results show that the determinants of price stability—infrastructure, information, and institutions—are at low levels of development; both production and price variability are high, and despite this continued high variability in prices, price risks mitigation has lost its importance in the country’s policy agenda. By analyzing market-based and non market-based policy options, as well as recent trends in the cereal markets, the paper argues and concludes that reliance on any single option may not produce the expected results. A combination of the two will be desirable, especially in the short run.
Additional file 4 of NeuroConstruct-based implementation of structured-light stimulated retinal circuitry
Creators: name: Elbaz, Miriam
name: Buterman, Rachel
name: Tsur, Elishai Ezra
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 4. Code example 3: Collapsing light stimulation.
Viabilidade da introdução do mel na merenda escolar: oportunidade e desafio para o agronegócio apícola
Creators: name: Magalhaes, Angelica Margarete
name: Chaves, Roselene De Queiroz
name: Silva, Tania Nunes Da
name: Magalhaes, Angelica Margarete
name: Chaves, Roselene De Queiroz
name: Silva, Tania Nunes Da
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Beekeeping
subject: School feeding
subject: Acceptability test
subject: Local Agrifood System

description: Tends as backdrop the destabilization of the apiculture market due to the European blockade to the Brazilian exports of honey and growing need of promoting that important product of the Brazilian agribusiness, this study was accomplished looking for to evaluate the viability of the introduction of the honey in the school snack, as a marketing opportunity in the theory of Local Agrifood System (SIAL). The acceptability of the honey was evaluated, compared to other two equivalent already used in the school snack: the sugar-cane molasses and the jelly of fruits. It was identified a smaller acceptability of the honey in relation to the jelly for all the analyzed variables (color, aroma, flavor and texture) and larger in relation to the molasses (except in the variable texture). The cost of a preparation portion with honey (R$ 0,26) was 18% above the per capita value reviewed by FNDE (R$ 0,26). The conclusion is that the challenges for the apiculture agribusiness constitute: works of alimentary education and promotion of the product honey close to the society in order to increase the acceptability, besides a politics of prices differentiated for the school feeding and a logistics of supply of the product registered well distributed in the country.
Utilising Deep Learning Techniques for Effective Zero-Day Attack Detection
Creators: name: Hindy, Hanan
name: Atkinson, Robert
name: Tachtatzis, Christos
name: Colin, Jean-Noël
name: Bayne, Ethan
name: Bellekens, Xavier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Machine Learning (ML) and Deep Learning (DL) have been used for building Intrusion Detection Systems (IDS). The increase in both the number and sheer variety of new cyber-attacks poses a tremendous challenge for IDS solutions that rely on a database of historical attack signatures. Therefore, the industrial pull for robust IDSs that are capable of flagging zero-day attacks is growing. Current outlier-based zero-day detection research suffers from high false-negative rates, thus limiting their practical use and performance. This paper proposes an autoencoder implementation for detecting zero-day attacks. The aim is to build an IDS model with high recall while keeping the miss rate (false-negatives) to an acceptable minimum. Two well-known IDS datasets are used for evaluation-CICIDS2017 and NSL-KDD. In order to demonstrate the efficacy of our model, we compare its results against a One-Class Support Vector Machine (SVM). The manuscript highlights the performance of a One-Class SVM when zero-day attacks are distinctive from normal behaviour. The proposed model benefits greatly from autoencoders encoding-decoding capabilities. The results show that autoencoders are well-suited at detecting complex zero-day attacks. The results demonstrate a zero-day detection accuracy of [89-99%] for the NSL-KDD dataset and [75-98%] for the CICIDS2017 dataset. Finally, the paper outlines the observed trade-off between recall and fallout.
description: 18 pages, 4 figures
Stochastic Collapse and Decoherence of a Non-Dissipative Forced Harmonic Oscillator
Creators: name: Adler, Stephen L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Careful monitoring of harmonically bound (or as a limiting case, free) masses is the basis of current and future gravitational wave detectors, and of nanomechanical devices designed to access the quantum regime. We analyze the effects of stochastic localization models for state vector reduction, and of related models for environmental decoherence, on such systems, focusing our analysis on the non-dissipative forced harmonic oscillator, and its free mass limit. We derive an explicit formula for the time evolution of the expectation of a general operator in the presence of stochastic reduction or environmentally induced decoherence, for both the non-dissipative harmonic oscillator and the free mass. In the case of the oscillator, we also give a formula for the time evolution of the matrix element of the stochastic expectation density matrix between general coherent states. We show that the stochastic expectation of the variance of a Hermitian operator in any unraveling of the stochastic process is bounded by the variance computed from the stochastic expectation of the density matrix, and we develop a formal perturbation theory for calculating expectation values of operators within any unraveling. Applying our results to current gravitational wave interferometer detectors and nanomechanical systems, we conclude that the deviations from quantum mechanics predicted by the continuous spontaneous localization (CSL) model of state vector reduction are at least five orders of magnitude below the relevant standard quantum limits for these experiments. The proposed LISA gravitational wave detector will be two orders of magnitude away from the capability of observing an effect.
description: TeX; 34 pages
Relacionamento de preços no mercado nordestino de tomate
Creators: name: Mayorga, Rodrigo De Oliveira
name: Tabosa, Francisco Jose Silva
name: Mayorga, Ruben Dario
name: Lima, Patricia Veronica Pinheiro Sales
name: Mayorga, Rodrigo De Oliveira
name: Tabosa, Francisco Jose Silva
name: Mayorga, Ruben Dario
name: Lima, Patricia Veronica Pinheiro Sales
Publisher: name: Unknown
Year: 2009
Subjects: subject: Demand and Price Analysis
subject: Wholesale market
subject: Price transmission
subject: VAR model
subject: Tomatoes

description: The objective this paper is to analyze the relationships in the prices on the tomatoes wholesale market prices of Fortaleza (CE), Ibiapaba (CE), Recife (PE) e Salvador (BA). Time series methods were used: unit root test, Johansen co-integration test, VAR models, and variance decomposition of prediction error and impulse response function. The results showed that the prices of Fortaleza influencies the wholesale market of Ibiapaba (CE), Recife (PE) e Salvador (BA).
O impacto do programa de microcrédito rural (Agroamigo) na melhoria das condições de vida das famílias beneficiadas no estado do Ceará: um estudo de caso
Creators: name: Maciel, Harine Matos
name: Khan, Ahmad Saeed
name: Maciel, Harine Matos
name: Khan, Ahmad Saeed
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Small rural credit
subject: Employment
subject: Income
subject: Quality of life
subject: Ceará

description: The main objective of the study is to verify the impact of program of small agricultural credit on the quality of life of the benefited families in the state of Ceara. The data was obtained through the application of questionnaires to the benefited families in the county of Quixada. Table, graphic and descriptive analysis were used to describe the collected data. The t-student, Tukey test and Kruskall-Wallis test were used to compare the mean values of selected variables and proportions of benefited and non benefited families were used, respectively. The employment per hectare cultivated is higher on the properties having cattle breeding and hog production activities financed by the credit program. The main of income of benefited and non benefited families is agriculture and retirement and pension, respectively. The average income per hectare cultivated is higher from hog production due to rapid returns as compare to cattle breeding and goat and sheep raising activities. The benefited and non benefited families have the average quality of life. The living condition, access to education and health facilities contributed the most in the formation of life quality index and leisure facilities contributed less in improving the quality of life of the benefited and non benefited families.