cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The optical geometry definition of the total deflection angle of a light ray in curved spacetime
Creators: name: Arakida, Hideyoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Assuming a static and spherically symmetric spacetime, we propose a novel concept of the total deflection angle of a light ray. The concept is defined by the difference between the sum of internal angles of two triangles; one of the triangles lies on curved spacetime distorted by a gravitating body and the other on its background. The triangle required to define the total deflection angle can be realized by setting three laser-beam baselines as in planned space missions such as LATOR, ASTROD-GW, and LISA. Accordingly, the new total deflection angle is, in principle, measurable by gauging the internal angles of the triangles. The new definition of the total deflection angle can provide a geometrically and intuitively clear interpretation. Two formulas are proposed to calculate the total deflection angle on the basis of the Gauss--Bonnet theorem. It is shown that in the case of the Schwarzschild spacetime, the expression for the total deflection angle $α_{\rm Sch}$ reduces to Epstein--Shapiro's formula when the source of a light ray and the observer are located in an asymptotically flat region. Additionally, in the case of the Schwarzschild--de Sitter spacetime, the expression for the total deflection angle $α_{\rm SdS}$ comprises the Schwarzschild-like parts and coupling terms of the central mass $m$ and the cosmological constant $Λ$ in the form of ${\cal O}(Λm)$ instead of ${\cal O}(Λ/m)$. Furthermore, $α_{\rm SdS}$ does not include the terms characterized only by the cosmological constant $Λ$.
description: 25 pages, 5 figures. Accepted for publication in Journal of Cosmology and Astroparticle Physics
A Study of Learning Search Approximation in Mixed Integer Branch and Bound: Node Selection in SCIP
Creators: name: Yilmaz, Kaan
name: Yorke-Smith, Neil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.2.6; I.2.8
subject: 90C11

description: In line with the growing trend of using machine learning to help solve combinatorial optimisation problems, one promising idea is to improve node selection within a mixed integer programming (MIP) branch-and-bound tree by using a learned policy. Previous work using imitation learning indicates the feasibility of acquiring a node selection policy, by learning an adaptive node searching order. In contrast, our imitation learning policy is focused solely on learning which of a node's children to select. We present an offline method to learn such a policy in two settings: one that comprises a heuristic by committing to pruning of nodes; one that is exact and backtracks from a leaf to guarantee finding the optimal integer solution. The former setting corresponds to a child selector during plunging, while the latter is akin to a diving heuristic. We apply the policy within the popular open-source solver SCIP, in both heuristic and exact settings. Empirical results on five MIP datasets indicate that our node selection policy leads to solutions significantly more quickly than the state-of-the-art precedent in the literature. While we do not beat the highly-optimised SCIP state-of-practice baseline node selector in terms of solving time on exact solutions, our heuristic policies have a consistently better optimality gap than all baselines, if the accuracy of the predictive model is sufficient. Further, the results also indicate that, when a time limit is applied, our heuristic method finds better solutions than all baselines in the majority of problems tested. We explain the results by showing that the learned policies have imitated the SCIP baseline, but without the latter's early plunge abort. Our recommendation is that, despite the clear improvements over the literature, this kind of MIP child selector is better seen in a broader approach using learning in MIP branch-and-bound tree decisions.
description: Authors' version, not publisher's final version which is available at DOI
Giant Gravitons and Fuzzy CP^2
Creators: name: Janssen, Bert
name: Lozano, Yolanda
name: Rodriguez-Gomez, Diego
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article we describe the giant graviton configurations in AdS_m x S^n backgrounds that involve 5-spheres, namely, the giant graviton in AdS_4 x S^7 and the dual giant graviton in AdS_7 x S^4, in terms of dielectric gravitational waves. Thus, we conclude the programme initiated in hep-th/0207199 and pursued in hep-th/0303183 and hep-th/0406148 towards the microscopical description of giant gravitons in AdS_m x S^n spacetimes. In our construction the gravitational waves expand due to Myers dielectric effect onto fuzzy 5-spheres which are described as S^1 bundles over fuzzy CP^2. These fuzzy spheres appear as solutions of the matrix model that comes up as the action for M-theory gravitational waves. The validity of our description is checked by confirming the agreement with the Abelian description in terms of a spherical M5-brane when the number of waves goes to infinity.
description: 20 pages. v2: references added. v3: version to appear in Nucl.Phys.B
The potential impact of the EU-ACP economic partnership Agreement: A case study of the Ugandan horticulture sector
Creators: name: Economic Policy Research Centre
name: Economic Policy Research Centre
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Financial Economics
subject: Institutional and Behavioral Economics
subject: International Development
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: Public Economics
subject: EPRC
subject: Horticulture trade
subject: Trade agreements

description: Uganda has had formal trade ties with Europe since 1973 when, together with several other commonwealth countries, it signed the Lomé Convention. However, trade relations between Europe and Africa started much earlier, in 1957, at first covering 18 francophone countries and six European countries. The Lomé Conventions granted countries like Uganda non-reciprocal trade preferences with the European Community (EC) and later European Union (EU)...Uganda’s current and potential exports to the EU include traditionally sensitive agricultural products such as: maize, sugar, coffee, cotton, bananas, milk and dairy products, animal products, fruit and vegetable products, and oil seed products. The risks from the EPAs can be summarized into three categories. First, that the country will lose its competitive and/or comparative advantages because it cannot match the competitiveness of European producers and/or the EU and national support offered to European producers. Second, compared to many countries in the region, Uganda has already endured many years of political and economic turmoil. The country has had less than two decades of economic stability and may not be ready to be exposed to competition with much more resilient economies. Third, Uganda’s economy is natural-resource based. For example, biodiversity services contributed about US$1 billion to the national economy in 1999. Thus, before liberalizing the trade opportunity with the EU there is a need to reflect on the consequences to the country’s sustainable development. For this study, the consequences to sustainable development are described in light of the country’s commitments to biodiversity conservation as well as the subsequent impacts on livelihoods of the poor who have a high dependence on the country’s biodiversity resources...
An integrated water resource management approach to mitigating water quality and quantity degradation in Xalapa, Mexico
Creators: name: Allé-Ando, Yapo
Publisher: name: University of British Columbia
Year: 2009

description: Population growth in Xalapa, Veracruz, Mexico, is exerting increasing pressure on the water supplier, CMAS Xalapa, to provide sufficient water of adequate quality. However, the quality of the water sources during the wet season is increasingly degraded with more frequent turbidity peaks of greater intensity. There is also less water available during the dry season. This thesis focuses on Xalapa's main supply source, the Huitzilapan River, as a case study for assessing adequate mitigation measures. It provides a good understanding of the water supply issues and stakes for Xalapa. It also provides a synthesis of the available information on the Upper Huitzilapan as well as an assessment of the challenges and opportunities facing the implementation of an integrated water resources management approach. In this thesis it is argued that efficient and sustainable solutions to Xalapa's water supply issues should not be uniquely of technical nature but addressed through adequate planning and management. While forest conservation and reforestation of the supply watershed are obvious and suggested solutions for mitigating increased pressure on the water supply to Xalapa, the method proposed in this thesis to achieve this goal is an integrated water resource management (IWRM) approach. It is recommended that a water council be created to implement the IWRM plan and to act as a network for cooperation, knowledge sharing and consensual decision-making.
Model independent measurement of the growth rate from the consistency relations of the LSS
Creators: name: Marinucci, Marco
name: Nishimichi, Takahiro
name: Pietroni, Massimo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Consistency Relations for the Large Scale Structure provide a link between the amplitude of Baryonic Acoustic Oscillations in the squeezed bispectrum (BS) and in the power spectrum (PS). This relation depends on the large scale bias of the considered tracer, $b_α$, and on the growth rate of structures, $f$. Remarkably, originating from basic symmetry principles, this relation is exact and independent on the underlying cosmological model. By analysing data from large volume simulations, both for dark matter and for haloes, we illustrate how BS and PS measurements can be used to extract $b_α$ and $f$ without the need of any theoretical approximation scheme for the computation of the BS and the PS. We show that, combining measurements of the squeezed BS with the quadrupole to monopole ratios for the PS at large scales can successfully break the $b_α-f$ degeneracy. We forecast that this method, applied to a Euclid-like survey, will be able to measure bias, and then the growth rate, at better than $10\%$ level, with no extra assumption.
description: 22 pages, 7 figures
Resonant Enhancement of Electronic Raman Scattering
Creators: name: Shvaika, A. M.
name: Vorobyov, O.
name: Freericks, J. K.
name: Devereaux, T. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an exact solution for electronic Raman scattering in a single-band, strongly correlated material, including nonresonant, resonant and mixed contributions. Results are derived for the spinless Falicov-Kimball model, employing dynamical mean field theory; this system can be tuned through a Mott metal-insulator transition.
description: 4 pages, 3 figures, contribution to the SNS'2004 conference
Theodor Müller: Alte bairische Bildhauer, vom Erminoldmeister bis Hans Leinberger
Creators: name: Fischel, Lilli
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Rezension zu: Theodor Müller: Alte bairische Bildhauer, vom Erminoldmeister bis Hans Leinberger. 28 S., 127 Abb., 17 S. Katalog. München 1950: Bruckmann.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Vol. 4 No. 7 (1951): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The Origins of Lattice Gauge Theory
Creators: name: Wilson, Kenneth G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: An anecdotal account of the author's role in the origins of lattice gauge theory, prepared for delivery on the thirtieth anniversary of the publication of "Confinement of Quarks" [Phys. Rev. D10 (1974) 2445].
description: Lattice2004(plenary), 17 pages; v2 corrects 1 date
H.E.S.S. Observations of PKS 2155-304
Creators: name: Collaboration, The H. E. S. S.
name: :
name: Aharonian, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (~45 sigma) at energies greater than 160 GeV, using the H.E.S.S. stereoscopic array of imaging air-Cherenkov telescopes in Namibia. A strong signal is found in each of the data sets corresponding to the dark periods of July and October, 2002, and June-September, 2003. The observed flux of VHE gamma rays shows variability on time scales of months, days, and hours. The monthly-averaged integral flux above 300 GeV varies between 10% and 60% of the flux observed from the Crab Nebula. Energy spectra are measured for these individual periods of data taking and are characterized by a steep power law with a time-averaged photon index of 3.32 +/- 0.06. An improved chi-square per degree of freedom is found when either a power law with an exponential cutoff energy or a broken power law are fit to the time-averaged energy spectrum. However, the significance of the improvement is marginal (~2 sigma). The suggested presence of features in the energy spectrum may be intrinsic to the emission from the blazar, or an indication of absorption of TeV gamma rays by the extragalactic infrared background light.
description: 11 pages,8 figures, accepted (Sept. 27, 2004) for Publication in A&A
Additional file 8 of Unraveling the molecular interactions involved in phase separation of glucocorticoid receptor
Creators: name: Stortz, Martin
name: Adali Pecci
name: Presman, Diego M.
name: Levi, Valeria
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology
subject: Computational Biology

description: Additional file 8: Supplementary Fig. S5. Related to Fig. 3. U2OS cells expressing GFP-GR were incubated with Dex and imaged as a function of time. These movies were analyzed using the single-particle tracking routine to obtain 2D trajectories of GR foci. The mean square displacement (MSD) was calculated as a function of the time lag (Eq. 3, see “Materials and methods”) and the mean explored distance was calculated from the MSD values at time lag =100 s. Foci intensities were calculated from an average image of the first 50 images of the sequence and expressed relative to the mean nuclear intensity. (Left) The mean explored distance is represented as a function of foci intensity, discriminating populations according to their distance to nucleoli. Proximal (red dots, nfoci = 30) or distal (blue dots, nfoci = 50) foci were classified according to their distance to nucleoli using a threshold of 0.5 μm. (Middle) Mean foci intensity of proximal and distal foci. The asterisk (*) denotes significantly different foci intensities (p 1.8, nfoci = 10). The asterisk (*) denotes significantly different explored distances (p
Promoting development oriented financial system in Sub-Saharan Africa: The Uganda country experience
Creators: name: Obowna, Marios
name: Abuka, Charles Augustine
name: Obowna, Marios
name: Abuka, Charles Augustine
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Political Economy
subject: Production Economics
subject: Economic development
subject: Financial systems
subject: Obwona
subject: EPRC
subject: Political stability

description: Uganda faced a number of challenges at the time of embarking on financial sector reforms. These challenges were complicated by decades of economic mismanagement and political instability that had prevailed in the country. In particular, there were concerns about the inadequacy of a critical mass of skilled and experienced financial sector players. This shortcoming inherently induced undue impediments to Uganda's corporate reporting regime. Further shortcoming were related to the lack of comprehensive financial information and underlying databases. It is now recognized that investment in financial data gathering usually provides the required critical support base for monitoring efforts and for crisis prediction in the financial sector...
Ottomans ‒ Crimea ‒ Jochids. Studies in Honour of Mária Ivanics. Edited by István Zimonyi. Szeged, Department of Altaic Studies, 2020, 373 oldal
Creators: name: Balogh, Orsolya
Publisher: name: Kőrösi Csoma Társaság
Year: 2021

description: Keletkutatás, 2021. tavasz ISSN 0133-4778
Additional file 9 of Unraveling the molecular interactions involved in phase separation of glucocorticoid receptor
Creators: name: Stortz, Martin
name: Adali Pecci
name: Presman, Diego M.
name: Levi, Valeria
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology
subject: Computational Biology

description: Additional file 9: Supplementary Fig. S6. Related to Fig. 5. U2OS cells co-expressing GFP-GR and JF549-labeled Halo-Med1 were incubated with vehicle (Veh) or Dex, then with medium supplemented with 100 mM NaCl (when indicated) and imaged by confocal microscopy. The dot plots represent the GFP-GR intensity as a function of the JF549 intensity at each Med1 condensate previously identified from the JF549 image. The intensity values were normalized to the mean nuclear intensity of each cell, in each channel (Veh: nfoci = 138; ncells = 8; Dex: nfoci = 358; ncells = 13; Dex + NaCl: nfoci = 445; ncells = 5). Raw data can be found in Additional file 21: Supplementary Table S9.
Applying computer vision to cocoa bean cut test images: towards an efficient and accessible tool forevaluating physical quality
Creators: name: Slettehaugh, Neil
name: Meter, Andrew
name: Alvarado, Dolores
name: Laliberté, Brigitte
Publisher: name: Zenodo
Year: 2023

description: A cut test is done on fermented and dried beans as the most commonly used method to visually assess bean quality for trading and before it is further processed. It provides information on the internal colour, any signs of diseases and pests and the degree of fissuring. This information is used to select the optimum roasting conditions to process into liquor and sensory evaluations of cocoa liquor and chocolate. The steps involved in cutting the beans for analysis are easily implemented, however the visual assessment requires experience to yield reliable results, and a significant amount of time to process. The objective of this research is to develop a tool by applying deep learning models and to read images of these cut tests to classify them quickly and reliably.
This first step involved selecting a variety of cut test images from the extensive library of over 1,000 cocoa beans samples from more than 55 origins of producers participating in the Cocoa of Excellence Programme. A neural network model for semantic segmentation to identify the cut beans within these images was created. The next step involved using cut test images of recently submitted bean samples, along with a number of other bean samples of lower quality to broaden the scope of the attributes used in the network training. From these images, each cut bean was isolated and labelled by an experienced evaluator for each property, providing over 20,000 labelled sub-images. The segmentation model was then applied along with the labelled data to train models each on colour, fissuring, and defects.
The segmentation model works well for cut test images, with over 95% test accuracy. The deep learning models for colour and fissuring on these segmented cut bean sub-images currently demonstrate respective prediction accuracies of 78% and 73% tested against the ground truth classifications identified by the experienced evaluator. The accuracy for defect detection is to be determined, as more images of low quality and defective cut beans are required. 
The results of this research demonstrate a proof of concept for providing a digital tool to evaluate and report on cut test images of fermented and dried cocoa beans. Such a tool would increase capacity of cocoa producers to get immediate feedback on the characteristics of their beans.
Keywords: Cut tests; Cocoa bean quality; Deep learning; Physical quality; Automated testing
Enhancing contributions of the informal sector to National development: The case of Uganda
Creators: name: Muwonge, Abdu
name: Obwona, Marios
name: Nambwaayo, Victoria
name: Muwonge, Abdu
name: Obwona, Marios
name: Nambwaayo, Victoria
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Financial Economics
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Political Economy
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Informal sector
subject: Employment
subject: Informal markets
subject: EPRC
subject: Muwonge
subject: nambwaayo

description: Regardless of the definition of the informal sector, there is wide spread consensus that the sector is important to the developing world. The International Lab-our Organization estimated that in 1990, 21 percent of the Sub-Saharan Africa's 227 million labour force was working in the informal economy. As the informal sector continued to grow both in urban and rural areas, there was a decline or stagnation in the growth of formal employment. The informal sector's contribution to gross domestic product (GDP) is increasing, although not much is known in most countries because the sector hardly enters the official statistical records. This study analyzes Uganda's informal sector size, contribution, formal-informal sector linkages, causes, constraints and policies aimed at formalizing or enhancing its contributions. The methodology used involved a review of relevant policy documents, including UBOS's survey reports on the informal sector. Of particular relevance are the 2002/03 household Uganda Business Inquiry and the 2001/02 Uganda business Register. the household surveys documenting the informal sector in Uganda define the informal sector as an enterprise employing less than 5 persons...
Effect of on-site Coulomb repulsion on ferromagnetic fluctuations in heavily over-doped cuprates
Creators: name: Teranishi, Shingo
name: Nishiguchi, Kazutaka
name: Yunoki, Seiji
name: Kusakabe, Koichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically study ferromagnetic (FM) fluctuations that are experimentally observed in the heavily overdoped region of cuprate superconductors. To explore the origin of FM fluctuations, we evaluate the spin susceptibilities of a single-band Hubbard model within the fluctuation exchange approximation. Model parameters are derived using the Wannierization technique and the constrained random phase approximation method based on the maximally localized Wannier functions. The constrained random phase approximation calculations reveal that the on-site Coulomb interaction decreases with an increase in hole doping. By taking this reduction of the on-site Coulomb interaction into account, the emergence of FM fluctuations in heavily overdoped cuprates can be explained.
description: 7 pages, 7 figures, to be submitted in Journal of the Physical Society of Japan
The Impact of Changes of the Internal Agricultural Structure in Sichuan Province on Farmers’ Income
Creators: name: Gao, Rui-Fang
name: Jia, Xian-Wei
name: Gao, Rui-Fang
name: Jia, Xian-Wei
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural structure
subject: Farmers’ net income
subject: Contribution rate
subject: China

description: After introducing the status quo of farmers’ net income and gross out value of agriculture of Sichuan Province, and the changes of agricultural output structure, the regression analysis was conducted on the impact of the changes in agricultural structure on the farmers’ net income per capita on strengthens of the data from Sichuan statistical yearbook and by the way of econometrics. The multiple linear regression analysis was conducted on the impact the changes in crop farming on farmers’ net income by using logarithmic demand model. The results show that the agricultural structure has transformed from the dominant crop farming to the all-around developmental trend covering the dominant industry, animal husbandry and forestry, fishery and the other industries; the animal husbandry has greatest impact on famers’ income per capita and the impact of crop farming is slightly weaker than animal husbandry; the crop farming and animal husbandry develop fairly rapid simultaneously and the two all have great impact in farmers’ income; among animal husbandry, the meat and eggs have relatively great impact on farmers’ income, while in crop farming, grain plays the dominant role in affecting farmers’ income, followed by cash crop. Hence, the relevant countermeasures applied to increase farmers’ income are put forward in terms of optimizing the internal structure of agriculture, adjusting the internal structure of crop farming, adjusting the internal structure of animal husbandry and strengthening the support of farmers.
La divulgación científica sobre la población estudiantil en situación de discapacidad
Creators: name: Agudelo, Edwin
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 390201
subject: Education policy
classificationCode: 390306
subject: Secondary education
classificationCode: 390407
subject: Inclusive education
classificationCode: 390411
subject: Special education and disability
classificationCode: 390412
subject: Teacher and student wellbeing

description: Este estudio tiene como objetivo analizar cómo se ha tratado la divulgación científica en revistas académicas destacadas entre los años 2001 y 2020, específicamente en relación con las formas de comunicación de los estudiantes con discapacidad. Para realizar el análisis, se utilizaron herramientas bibliométricas como mapas y redes de cocitación. La revisión se organizó en tres categorías: inclusión educativa, comunicación y comunicación dialógica. Los resultados indican que los países que más contribuyen con publicaciones sobre este tema son Inglaterra, Estados Unidos y España, con un 32,21 % del total, siendo España el único país hispanohablante. Esto sugiere que la investigación en este campo se realiza principalmente en inglés y que la diversidad lingüística en cuanto a las formas de comunicación de los estudiantes con discapacidad es limitada. No se identificaron países latinoamericanos dentro de los principales productores de investigaciones de alto impacto en este tema. Finalmente, se reflexiona sobre la falta de estudios que aborden la situación desde una perspectiva rural y se concluye que es necesario ampliar la investigación en América Latina, impulsando iniciativas que integren la discapacidad y la inclusión con un enfoque territorial.
SUSY Parameter Analysis at TeV and Planck Scales
Creators: name: Allanach, B. C.
name: Blair, G. A.
name: Freitas, A.
name: Kraml, S.
name: Martyn, H. -U.
name: Polesello, G.
name: Porod, W.
name: Zerwas, P. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Coherent analyses at future LHC and LC experiments can be used to explore the breaking mechanism of supersymmetry and to reconstruct the fundamental theory at high energies, in particular at the grand unification scale. This will be exemplified for minimal supergravity.
description: 7 pages, 3 figures, uses espcrc2.sty (included), Proceedings, Loops and Legs 2004, Zinnowitz on Usedom
Low-symmetry topological materials for large charge-to-spin interconversion: The case of transition metal dichalcogenide monolayers
Creators: name: Vila, Marc
name: Hsu, Chuang-Han
name: Garcia, Jose H.
name: Benítez, L. Antonio
name: Waintal, Xavier
name: Valenzuela, Sergio
name: Pereira, Vitor M.
name: Roche, Stephan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin polarization induced by the spin Hall effect (SHE) in thin films typically points out of the plane. This is rooted on the specific symmetries of traditionally studied systems, not in a fundamental constraint. Recently, experiments on few-layer ${\rm MoTe}_2$ and ${\rm WTe}_2$ showed that the reduced symmetry of these strong spin-orbit coupling materials enables a new form of {\it canted} spin Hall effect, characterized by concurrent in-plane and out-of-plane spin polarizations. Here, through quantum transport calculations on realistic device geometries, including disorder, we predict a very large gate-tunable SHE figure of merit $λ_sθ_{xy}\sim 1\text{--}50$ nm in ${\rm MoTe}_2$ and ${\rm WTe}_2$ monolayers that significantly exceeds values of conventional SHE materials. This stems from a concurrent long spin diffusion length ($λ_s$) and charge-to-spin interconversion efficiency as large as $θ_{xy} \approx 80$\%, originating from momentum-invariant (persistent) spin textures together with large spin Berry curvature along the Fermi contour, respectively. Generalization to other materials and specific guidelines for unambiguous experimental confirmation are proposed, paving the way towards exploiting such phenomena in spintronic devices. These findings vividly emphasize how crystal symmetry and electronic topology can govern the intrinsic SHE and spin relaxation, and how they may be exploited to broaden the range and efficiency of spintronic materials and functionalities.
description: Published version, Phys. Rev. Reserach
Comprehensive Evaluation on the Regional Economy of Commodity Grain Base in Heilongjiang Province Based on Factor Analysis Method
Creators: name: Shen, Lei-Ming
name: Xu, Mei
name: Wang, Fu-Lin
name: Zhang, Hao
name: Shen, Lei-Ming
name: Xu, Mei
name: Wang, Fu-Lin
name: Zhang, Hao
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Heilongjiang Commodity grain base
subject: Factor Analysis Method
subject: Regional economy
subject: Comprehensive evaluation
subject: China

description: Taking a total of 13 areas in Heilongjiang commodity grain base as the research objects, 9 indices are selected, which are regional GDP (X1), per capita GDP (X2), total value of tertiary industry (X3), financial revenue (X4), urban fixed assets investment (X5), average salary (X6), gross industrial output value (X7), total output value of farming, forestry, husbandry and fishing (X8), and retail sales of social consumer goods (X9). Based on this, evaluation index system of regional economy is established. According to the 2006-2008 Heilongjiang Statistical Yearbook, average values within 3 years are used as analytical data. Factor Analysis Method is adopted to establish regression model and to carry out comprehensive analysis. Result shows that Heilongjiang commodity grain base has extremely uneven regional economic development in different areas. According to the score order and actual situation, the 13 areas are divided into 4 types. The first and second types are Harbin and Daqing, respectively. The third type is Qiqihaer, Suihua, Mudanjiang and Jiamusi. And the forth type is Jixi, Shuangyashan, Heihe, Yichun, Qitaihe, Hegang and Daxinganling. Suggestions for the development of these areas are put forward.
Near-ideal spontaneous photon sources in silicon quantum photonics
Creators: name: Paesani, Stefano
name: Borghi, Massimo
name: Signorini, Stefano
name: Maïnos, Alexandre
name: Pavesi, Lorenzo
name: Laing, Anthony
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: While integrated photonics is a robust platform for quantum information processing, architectures for photonic quantum computing place stringent demands on high quality information carriers. Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, and that are suitable for mass-manufacture, have been elusive. Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements. Our photon sources are fabricated in silicon using mature processes, and exploit a novel dual-mode pump-delayed excitation scheme to engineer the emission of spectrally pure photon pairs through intermodal spontaneous four-wave mixing in low-loss spiralled multi-mode waveguides. We simultaneously measure a spectral purity of $0.9904 \pm 0.0006$, a mutual indistinguishably of $0.987 \pm 0.002$, and $>90\%$ intrinsic heralding efficiency. We measure on-chip quantum interference with a visibility of $0.96 \pm 0.02$ between heralded photons from different sources. These results represent a decisive step for scaling quantum information processing in integrated photonics.
Leptonic CP violation in a two parameter model
Creators: name: Masood, Samina S.
name: Nasri, Salah
name: Schechter, Joseph
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We further study the "complementary" Ansatz, Tr$(M_ν)$=0, for a prediagonal light Majorana type neutrino mass matrix. Previously, this was studied for the CP conserving case and the case where the two Majorana type CP violating phases were present but the Dirac type CP violating phase was neglected. Here we employ a simple geometric algorithm which enables us to "solve" the Ansatz including all three CP violating phases. Specifically, given the known neutrino oscillation data and an assumed two parameter (the third neutrino mass $m_3$ and the Dirac CP phase $δ$) family of inputs we predict the neutrino masses and Majorana CP phases. Despite the two parameter ambiguity, interesting statements emerge. There is a characteristic pattern of interconnected masses and CP phases. For large $m_3$ the three neutrinos are approximately degenerate. The only possibility for a mass hierarchy is to have $m_3$ smaller than the other two. A hierarchy with $m_3$ largest is not allowed. Small CP violation is possible only near two special values of $m_3$. Also, the neutrinoless double beta decay parameter is approximately bounded as 0.020 eV $
description: 12 pages, 1 figure
A Ballistic Graphene Cooper Pair Splitter
Creators: name: Pandey, P.
name: Danneau, R.
name: Beckmann, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report an experimental study of Cooper pair splitting in an encapsulated graphene based multiterminal junction in the ballistic transport regime. Our device consists of two transverse junctions, namely the superconductor/graphene/superconductor and the normal metal/graphene/normal metal junctions. In this case, the electronic transport through one junction can be tuned by an applied bias along the other. We observe clear signatures of Cooper pair splitting in the local as well as nonlocal electronic transport measurements. Our experimental data can be very well described by using a modified Octavio-Tinkham-Blonder-Klapwijk model and a three-terminal beam splitter model.
SciExplorer 开放科学计量数据可视化分析平台(科教版)
Creators: name: 李, 杰
Publisher: name: Zenodo
Year: 2025

description: SciExplorer中文主页:https://smartdata.las.ac.cn/SciExplorer/?lang=CN

SciExplorer英文主页:https://smartdata.las.ac.cn/SciExplorer/?lang=EN
The dual Yamada-Watanabe theorem for mild solutions to stochastic partial differential equations
Creators: name: Tappe, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We provide the dual result of the Yamada-Watanabe theorem for mild solutions to semilinear stochastic partial differential equations with path-dependent coefficients. An essential tool is the so-called "method of the moving frame", which allows us to reduce the proof to infinite dimensional stochastic differential equations.
description: 18 pages. arXiv admin note: text overlap with arXiv:1907.01431
Regional Agricultural Input-Output Model and Countermeasure for Production and Income Increase of Farmers in Southern Xinjiang, China
Creators: name: Jiang, Qing-Song
name: Zhang, Xing-Ji
name: Jiang, Qing-Song
name: Zhang, Xing-Ji
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Regional agriculture
subject: Input-output model
subject: Production and income increase
subject: Principal component analysis
subject: Econometric model，China

description: Agricultural input and output status in southern Xinjiang, China is introduced, such as lack of agricultural input, low level of agricultural modernization, excessive fertilizer use, serious damage of environment, shortage of water resources, tremendous pressure on ecological balance, insignificant economic and social benefits of agricultural production in southern Xinjiang, agriculture remaining a weak industry, agricultural economy as the economic subject of southern Xinjiang, and backward economic development of southern Xinjiang. Taking the Aksu area as an example, according to the input and output data in the years 2002-2007, input-output model about regional agriculture of the southern Xinjiang is established by principal component analysis. DPS software is used in the process of solving the model. Then, Eviews software is adopted to revise and test the model in order to analyze and evaluate the economic significance of the results obtained, and to make additional explanations of the relevant model. Since the agricultural economic output is seriously restricted in southern Xinjiang at present, the following countermeasures are put forward, such as adjusting the structure of agricultural land, improving the utilization ratio of land, increasing agricultural input, realizing agricultural modernization, rationally utilizing water resources, maintaining eco-environmental balance, enhancing the awareness of agricultural insurance, minimizing the risk and loss, taking the road of industrialization of characteristic agricultural products , and realizing the transfer of surplus labor force.
Problems and Countermeasures of Logistics in the Marine Fisheries Industry
Creators: name: Jiang, Yi-Min
name: Jiang, Yi-Min
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Marine fisheries
subject: Guarantee system
subject: Logistics industry
subject: Supply chain management
subject: China

description: Based on the connotation of marine fisheries logistics, the thesis give a brief account of its features: firstly, it is more susceptible to natural conditions; secondly, the aquatic logistics is with strong specialized assets; thirdly, the aquatic products market has relative greater uncertainties; fourthly, it calls for higher logistics technology; fifthly, it is difficult to conduct supply chain management. Then the thesis analyzes the problems in the marine fisheries industry: the first problem is the imperfect standardization system of the aquatic logistics; the second is the backward development in the cold storage of the marine fisheries; the third is low information-based degree of marine fisheries logistics system; the fourth one is the low level of the value-added services; the fifth problem is the immature participants in logistics. In order to solve these problems, this thesis further proposes some countermeasure to develop the logistics in the marine fisheries industry: at first, to build various forms of logistics organization entities; secondly, to gradually realize the integration of logistics functions and performance; thirdly, to strengthen the information construction of marine fisheries logistics; at last, to reinforce the government roles in developing the logistics industry of aquatic products.
The Approaches to Narrowing Urban-Rural Income Gap－From the Perspective of Rural Social Security
Creators: name: Zheng, Shuang-Sheng
name: Zheng, Shuang-Sheng
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Income distribution
subject: Urban-rural income gap
subject: Rural social security
subject: Urban and rural residents
subject: China

description: From the situations about the incomes and life quality of the urban and rural residents, the thesis briefly introduces the status quo of the urban-rural income gap and explores the impact of the income gap on social economy: firstly, it hampers economic development; secondly, it is detrimental to the social development. Then the thesis analyzes the role of a sound social security in narrowing urban-rural income gap: at first, it broadens the institutional environment of improving the agricultural efficiency; secondly, it eliminates the uncertainties influencing the farmers’ income; thirdly, it improves the farmers’ capacity to increase income; at last, it enhances the farmers’ consciousness of wealth. Next the thesis inquires into the problems existing in the system of rural social security: the first problem is more obviously fragmented system; the second is inadequate security projects and narrower coverage; the third is an obvious lack of equality in urban and rural security; the fourth is even less sound management system; the last is the lagging of legislation. Afterwards the thesis proposes the countermeasures and suggestions to improve the system of rural social security and narrow urban-rural income gap: firstly, to integrate the social security system in rural areas; secondly, to perfect security projects and enhance the security system; thirdly, to integrate the administrative management of social security; at last, to enforce the legal system.
The Plights and Solutions of the Farmers’ Land Rights Protection
Creators: name: Liu, An-Hua
name: Liu, An-Hua
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Farmers’ land rights
subject: Land expropriation
subject: Landowner
subject: Land transference
subject: China

description: The current plights of farmers’ land rights in China are analyzed. They cover the vain installation of the security of farmers’ land rights, vain position of the dominant role played by rural collective land, incomplete functions of rural collective land and the inadequate material assistance of farmers. The solutions for ensuring the security of farmers’ land rights are put forward, in the first place, perfecting the legislation of guaranteeing farmers’ land rights. In the second place, scientifically installing the rural land rights, which covers the following aspects, such as, clearly defining that the collective ownership of rural land belongs to farmers in law; clearly defining the main body of rural land property and eliminating the shortage of property rights; demarcating the range of public interests and clearly stipulating the reasonable compensation of main body of land expropriation. In the third place, villagers’ autonomy should be perfected. In the forth place, standardizing the system of land expropriation, which includes the two aspects of normalizing the land transference procedure and the control of collecting land tax, and establishing fair compensation standard and normalizing land compensation procedure. In the fifth place, strengthening land transference and judiciary, and enforcing supervision; in the sixth place, accelerating the development of peasants’ cooperative economic organizations and cultivating peasants’ rights keeping organization. Through the discussion on the plights and solutions of farmers’ land rights protection, the coordination of rural and urban development will be realized and a harmonious society will be built.
Laws, Defects and Countermeasures on the Circulation of Rural Housing Land －From the Perspective of Farmer’ Rights Protection
Creators: name: Mao, Ping
name: Song, Jiao
name: Pan, Qiang
name: Mao, Ping
name: Song, Jiao
name: Pan, Qiang
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Circulation of housing lands
subject: Legal lease
subject: Protection of the peasant’s interests
subject: China

description: The thesis combs the existing legal provisions about rural housing land from the perspectives of use restriction, means restriction, subject restriction and mortgage prohibition, and finds out their defects, namely, weakening real right, confused knowledge about the integration of house property and land property, the loophole in Land Administration Law, the bans on the rural residents’ purchase of housing land and so on. Then the thesis expounds the harms of restricting the circulation of housing land, for example, it will result in underground transaction of housing lands; lead to untenanted lands and waste of resources; bring about financing difficulty for peasants; do harm to the interest of land owners (rural collective economic organizations) and so on. The thesis further proposes to establish the legal lease model to solve the problems in the circulation of housing lands, specifically explains the definition of the legal lease model of housing lands, illustrates its detailed information from the aspects of object, subject and content and elaborates a series of problems involving how to rehouse those farmers who have sold their original houses, how to deal with the over-standard occupied housing lands, how to distribute the rent of housing lands, as well as how to perfect relevant procedures and formalities in the credit circulation of housing lands so as to realize the legitimate and effective circulation of rural housing lands and protect the peasants’ interests.