cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Imaging Protoplanetary Disks with a Square Kilometer Array
Creators: name: Wilner, D. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The recent detections of extrasolar giant planets has revealed a surprising diversity of planetary system architectures, with many very unlike our Solar System. Understanding the origin of this diversity requires multi-wavelength studies of the structure and evolution of the protoplanetary disks that surround young stars. Radio astronomy and the Square Kilometer Array will play a unique role in these studies by imaging thermal dust emission in a representative sample of protoplanetary disks at unprecedented sub-AU scales in the innermost regions, including the ``habitable zone'' that lies within a few AU of the central stars. Radio observations will probe the evolution of dust grains up to centimeter-sized ``pebbles'', the critical first step in assembling giant planet cores and terrestrial planets, through the wavelength dependence of dust emissivity, which provides a diagnostic of particle size. High resolution images of dust emission will show directly mass concentrations and features in disk surface density related to planet building, in particular the radial gaps opened by tidal interactions between planets and disks, and spiral waves driven by embedded protoplanets. Moreover, because orbital timescales are short in the inner disk, synoptic studies over months and years will show proper motions and allow for the tracking of secular changes in disk structure. SKA imaging of protoplanetary disks will reach into the realm of rocky planets for the first time, and they will help clarify the effects of the formation of giant planets on their terrestrial counterparts.
description: 14 pages, 8 figures, to appear in "Science with the Square Kilometer Array," eds. C. Carilli and S. Rawlings, New Astronomy Reviews (Elsevier: Amsterdam)
title: On the Number of Distinct Languages Accepted by Finite Automata with n States
Creators: name: Domaratzki, Michael
name: Kisman, Derek
name: Shallit, Jeffrey
Publisher: name: Institut für Informatik, Justus-Liebig-Universität Giessen
Year: 2002

description: We give asymptotic estimates and some explicit computations for both the number of
distinct languages and the number of distinct finite languages over a $k$-letter alphabet
that are accepted by deterministic finite automata (resp. nondeterministic finite
automata) with $n$ states.
description: Journal of Automata, Languages and Combinatorics, Volume 7, Number 4, 2002, 469-486
Chiral Soliton Model vs Pentaquark Structure for Θ(1540)
Creators: name: Ramachandran, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The exotic baryon $Θ^+$ (1540 MeV)$ is visualised as an expected (iso) rotational excitation in the Chiral Soliton Model. It is also argued as a Pentaquark baryon state in a constituent quark model with strong diquark correlations. I contrast the two points of view; the similarities and differences between the two pictures. Collective excitation, characteristic of Chiral Soliton Model points toward small mixing of representations in the wake of SU(3) breaking. In contrast, Constituent quark Models prefer near ``ideal'' mixing, similar to $ω- ϕ$ mixing.
description: 11 pages, references added, final published version
Low Level Carbon Monoxide Line Polarization in two Protoplanetary Disks: HD 142527 and IM Lup
Creators: name: Stephens, Ian W.
name: Fernandez-Lopez, Manuel
name: Li, Zhi-Yun
name: Looney, Leslie W.
name: Teague, Richard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Magnetic fields are expected to play an important role in accretion processes for circumstellar disks. Measuring the magnetic field morphology is difficult, especially since polarimetric (sub)millimeter continuum observations may not trace fields in most disks. The Goldreich-Kylafis (GK) effect suggests that line polarization is perpendicular or parallel to the magnetic field direction. We attempt to observe CO(2-1), $^{13}$CO(2-1), and C$^{18}$O(2-1) line polarization toward HD 142527 and IM Lup, which are large, bright protoplanetary disks. We use spatial averaging and spectral integration to search for signals in both disks, and detect a potential CO(2-1) Stokes $Q$ signal toward both disks. The total CO(2-1) polarization fractions are 1.57 $\pm$ 0.18% and 1.01 $\pm$ 0.10% for HD 142527 and IM Lup, respectively. Our Monte Carlo simulations indicate that these signals are marginal. We also stack Stokes parameters based on the Keplerian rotation, but no signal was found. Across the disk traced by dust of HD 142527, the 3$σ$ upper limits for $P_{\text{frac}}$ at 0.5$^{\prime\prime}$ ($\sim$80 au) resolution are typically less than 3% for CO(2-1) and $^{13}$CO(2-1) and 4% for C$^{18}$O(2-1). For IM Lup, the 3$σ$ upper limits for these three lines are typically less than 3%, 4%, and 12%, respectively. Upper limits based on our stacking technique are up to a factor of $\sim$10 lower, though stacking areas can potentially average out small-scale polarization structure. We also compare our continuum polarization at 1.3 mm to observations at 870 $μ$m from previous studies. The polarization in the northern dust trap of HD 142527 shows a significant change in morphology and an increase in $P_{\text{frac}}$ as compared to 870 $μ$m. For IM Lup, the 1.3 mm polarization may be more azimuthal and has a higher $P_{\text{frac}}$ than at 870 $μ$m.
description: Accepted to ApJ
Review of the experimental evidence on pentaquarks and critical discussion
Creators: name: Kabana, Sonia
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We review and discuss the experimental evidence on predicted baryonic states made by 4 quarks and one antiquark, called pentaquarks. Theoretical and experimental advances in the last few years led to the observation of pentaquark candidates by some experiments, however with relatively low individual significance. Other experiments did not observed those candidates. Furthermore, the masses of the $θ^+$(1540) candidates exhibit a large variation in different measurements. We discuss to which extend these contradicting informations may lead to a consistent picture.
description: Contribution to the International Conference on 'Quark Confinement and the Hadron Spectrum VI 2004', Tanka Village, 21-25 Sept. 2004, Sardegna, Italy
Lessons from implementing INFFER with regional catchment management organisations
Creators: name: Marsh, Sally P.
name: Curatolo, April
name: Pannell, David J.
name: Park, Geoff
name: Roberts, Anna M.
name: Marsh, Sally P.
name: Curatolo, April
name: Pannell, David J.
name: Park, Geoff
name: Roberts, Anna M.
Publisher: name: Unknown
Year: 2010
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Investment in natural resource management (NRM) by regional organisations in Australia has been widely criticised for failing to achieve substantial environmental outcomes. The Investment Framework for Environmental Resources (INFFER) is a tool for developing and prioritising projects to address environmental issues such as water quality and biodiversity decline, environmental pest impacts and land degradation. It aims to achieve the most valuable environmental outcomes with the available resources. During 2008 and 2009 INFFER has been implemented with a number of catchment management organisations (CMOs) throughout Australia. In this paper, we report on lessons from and implications of this experience. Data on implementation were collected in formal and informal ways from staff of organisations that were using INFFER and state agencies, including: an on-line survey, benchmarking questions at training workshops, a formal on-going monitoring and evaluation process tracking the use of INFFER by CMOs, and comments made in correspondence and informal feedback to the INFFER team. In this paper we describe issues that arise when implementing INFFER with regions and organisations, and how the INFFER team has attempted to address these. Key issues include a desire to consider the community as an asset and emphasise capacity building, a rejection of the need for targeted investment, and various difficulties associated with specific aspects of the Framework. Existing institutional arrangements, and the legacy of past institutional arrangements, remain serious barriers to the adoption of methods to improve environmental outcomes from NRM investment. A lack of rigour in investment planning has become accepted as the norm, and resistance to processes to improve rigour is common. However, many CMOs want to achieve better environmental outcomes with their limited funds, and we report on our efforts to work with them to achieve this by using INFFER.
Framing for incentive compatibility in choice modelling
Creators: name: Mazur, Kasia
name: Bennett, Jeffrey W.
name: Mazur, Kasia
name: Bennett, Jeffrey W.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Choice modelling
subject: Incentive comparability
subject: Provision rule
subject: Non-market valuation
subject: Environment

description: The incentives that motivate respondents to reveal their preferences truthfully have been a long-standing area of research in the non-market valuation literature. A number of studies have been undertaken to investigate incentive compatibility in nonmarket valuation. Most of these used laboratory environments rather than field surveys (e.g. Carson and Burton, 2008, Harrison, 2007, Lusk and Schroeder, 2004, Racevskis and Lupi, 2008). Only a few studies investigating incentive compatibility have considered multi-attribute public goods with an explicit provision rule in a choice experiment (Carson and Groves, 2007, Collins and Vossler, 2009, Carson and Burton, 2008). The design of a choice modelling study that avoids strategic behaviour has proven particularly difficult because of multiple choices and difficulties in developing a majority voting provision rule. This study investigates the impact of the inclusion of a framing statement for incentive compatibility in a field survey choice modelling study. An incentive compatible statement (provision rule) that sets out to respondents the rule relating to when the good under consideration will be provided was employed. The impact of a provision rule across three alternative choice modelling multiple choice questionnaires was tested by comparing results between split samples with and without a provision rule. Four split samples were used to test the impact of a provision rule on preferences across different communities including local/rural residents and distant/urban residents. A choice modelling analysis that involved a conditional logit model and a random parameter model was used to elicit household willingness to pay for improvements in environmental quality in the Hawkesbury-Nepean catchment. The results of the study show that the inclusion of a provision rule had an effect on preferences in the distant/urban communities. However, the impact of a provision rule in the local/rural community sub-samples was negligible. This study suggests that the impact of a provision rule should be analysed in the context of different community characteristics.
High-Accuracy Microwave Atomic Clock via Magic Optical Lattice
Creators: name: Zhou, Xiaoji
name: Chen, Xuzong
name: Chen, Jingbiao
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A microwave atomic clock scheme based on Rb and Cs atoms trapped in optical lattice with magic wavelength for clock transition is proposed. The ac Stark shift of clock transition due to trapping laser can be canceled at some specific laser wavelengths. Comparing with in fountain clock, the cavity related shifts, the collision shift, and the Doppler effect are eliminated or suppressed dramatically in atomic clock when the magic optical lattice is exploited. By carefully analyzing various sources of clock uncertainty, we conclude that a microwave atomic clock with an accuracy of better than $2\times10^{-17}$ is feasible, which is of the same accuracy as the expected best optical atomic clock.
description: 4 pages, 3 figs, submitted to PRL
Solving optimization problems with Rydberg analog quantum computers: Realistic requirements for quantum advantage using noisy simulation and classical benchmarks
Creators: name: Serret, Michel Fabrice
name: Marchand, Bertrand
name: Ayral, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Platforms of Rydberg atoms have been proposed as promising candidates to solve some combinatorial optimization problems. Here, we compute quantitative requirements on the system sizes and noise levels that these platforms must fulfill to reach quantum advantage in approximately solving the Unit-Disk Maximum Independent Set problem. Using noisy simulations of Rydberg platforms of up to 26 atoms interacting through realistic van der Waals interactions, we compute the average approximation ratio that can be attained with a simple quantum annealing-based heuristic within a fixed temporal computational budget. Based on estimates of the correlation lengths measured in the engineered quantum state, we extrapolate the results to large atom numbers and compare them to a simple classical approximation heuristic. We find that approximation ratios of at least $\approx 0.84$ are within reach for near-future noise levels. Not taking into account further classical and quantum algorithmic improvements, we estimate that quantum advantage could be reached by attaining a number of controlled atoms of $\sim8,000$ for a time budget of 2 seconds, and $\sim 1,000-1,200$ for a time budget of 0.2 seconds, provided the coherence levels of the system can be improved by a factor 10 while maintaining a constant repetition rate.
Existe convergência espacial da produtividade agrícola no Brasil?
Creators: name: Almeida, Eduardo Simões De
name: Perobelli, Fernando Salgueiro
name: Ferreira, Pedro Guilherme Costa
name: Almeida, Eduardo Simões De
name: Perobelli, Fernando Salgueiro
name: Ferreira, Pedro Guilherme Costa
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: convergence
subject: land productivity
subject: spatial econometrics
subject: spatial autocorrelation.

description: This work analyzes the convergence of land productivity for Brazilian regions from 1991 to 2003. It evaluates if there is or not convergence of the agricultural productivity, controlling explicitly for spatial effects. To do so, an exploratory spatial data analysis was previously implemented and the presence of spatial autocorrelation for the land productivity was detected. In addition, spatial econometric models were developed for the convergence analysis.
Lumican and fibromodulin in the periodontal ligament : a study in knockout mice
Creators: name: Matheson, Stacey L.
Publisher: name: University of British Columbia
Year: 2009

description: Periodontal disease is one of the most common diseases of mankind and may present in otherwise healthy individuals or as part of a medical condition or syndrome. The cause of periodontitis seems to be multifactorial involving both periodontal pathogens and host response. Periodontal disease involves breakdown of collagen fibers of the periodontal ligament, which manifests as increased probing depths and attachment loss around teeth. The integrity of the periodontal ligament, then, seems important in this disease process. Small leucine-rich proteoglycans have been located in the periodontal ligament. These are a family of molecules in the extracellular matrix that, among other things, play a role in collagen fibrillogenesis. This blinded, controlled study investigates the location of lumican and fibromodulin, two class II small leucine-rich proteoglycans, in oral periodontal tissues and their role in the collagen fibrillogenesis using adult mice that are singly or doubly deficient in these two small leucine-rich proteoglycans.
Multi-faceted organising strategies: integrating community and labour struggles
Creators: name: Black, Tracey Lou
Publisher: name: University of British Columbia
Year: 2009

description: Since the 1980s, Canadians have witnessed deterioration in working conditions and a slow erosion of social programs. Employers' desires for increased profits have led to a more fragmented and insecure workforce. Government trends of reducing or eliminating social programs have generated a greater need at a community level for social services. Needs are exacerbated among marginalized populations including women and immigrants of colour as these groups generally face greater poverty and an increased risk of exploitive employers. Groups that serve and organize marginalized workers and communities experience increasing difficulty meeting their members' and clients' needs. Community organizations continue to experience funding cuts from governments while attempting to meet an increased demand from clients and members for services. Labour unions encounter greater barriers utilizing traditional organizing techniques in a restructured economy and re-organization of production. Some community-based organizations have attempted to meet these needs by integrating community and labour organizing with service delivery. Two such organizations are compared in this thesis: the Vancouver based, Philippine Women's Centre, which serves Philippine women, many of whom are migrant workers in the Lower Mainland of B C and the Progressive Intercultural Community Services Society (PICS) of Surrey, B C , which gives services primarily to Indo-Canadians in the organization's surrounding community including Indo-Canadian farmworkers. The thesis examines the ways in which each organization has attempted to integrate community and labour organizing and service provision, the opportunities and constraints it has faced, and the strategies it has found effective.
Poincare' series of monomial rings
Creators: name: Berglund, Alexander
Publisher: name: arXiv
Year: 2004
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D40. Secondary: 13D02, 13D07

description: Let R be the quotient of a polynomial ring over a field k by an ideal generated by monomials. We derive a formula for the multigraded Poincare' series of R, i.e., the generating function for the ranks of the modules in a minimal multigraded free resolution of k over R. The formula can be expressed in terms of the homology of lower intervals in a certain lattice associated to the minimal set of generators for the ideal.
description: 15 pages
Mudanças na pauta das exportações agrícolas brasileiras
Creators: name: Carvalho, Maria Auxiliadora De
name: Silva, Cesar Roberto Leite Da
name: Carvalho, Maria Auxiliadora De
name: Silva, Cesar Roberto Leite Da
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: agricultural export
subject: deindustrialization
subject: constant market share

description: This paper aims to contribute to the Brazilian deindustrialization debate, attributed to exchange appreciation that, for several authors, is the agricultural export increase effect. Constant market share method applied on FAO export data, for the 1991 to 2003 period, indicates that Brazilian agricultural export increased more than the potential rate, due to expressive competitiveness gains. After the exchange regime change, in 1999, the competitiveness increase was partly neutralized by growth share of products whose world demand was in decline. Exports value decomposition showed that the volume effect predominates, fact more evident after the flotation exchange adoption, when the price effect was negative. Even discounting the real exchange depreciation effect, the international prices change was unfavourable to the Brazilian agriculture. The flexibility effect negative sign during all the period indicates great participation of products in disagreement with the offer law, fact worsened recently, when most of the products whose exports increased in volume had falling prices in the international market. The manufactured export decline and the largest basic products trade growth indicated a tendency to agribusiness deindustrialization.
Parity of $Θ^+$(1540) from QCD sum rules
Creators: name: Lee, Su Houng
name: Kim, Hungchong
name: Kwon, Youngshin
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The QCD sum rule for the pentaquark $Θ^+$, first analyzed by Sugiyama, Doi and Oka, is reanalyzed with a phenomenological side that explicitly includes the contribution from the two-particle reducible kaon-nucleon intermediate state. The magnitude for the overlap of the $Θ^+$ interpolating current with the kaon-nucleon state is obtained by using soft-kaon theorem and a separate sum rule for the ground state nucleon with the pentaquark nucleon interpolating current. It is found that the K-N intermediate state constitutes only 10% of the sum rule so that the original claim that the parity of $Θ^+$ is negative remains valid.
description: slightly revised, version to appear in PLB
Reduction of contaminants originating from primary beam by improving the beam stoppers in GARIS-II
Creators: name: Kimura, Sota
name: Kaji, Daiya
name: Ito, Yuta
name: Miyatake, Hiroari
name: Morimoto, Kouji
name: Schury, Peter
name: Wada, Michiharu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Two independent beam stoppers have been developed for improving the beam separation of the gas-filled recoil ion separator GARIS-II. Performance evaluation of these supplemental beam stoppers was performed by using the 208Pb (18O,3n)223Th reaction. A160-fold enhancement of the signal-to-noise ratio at the GARIS-II focal plane was observed.
description: 4 pages, 4 figures
Additional file 8 of Wnt-driven LARGE2 mediates laminin-adhesive O-glycosylation in human colonic epithelial cells and colorectal cancer
Creators: name: Dietinger, Vanessa
name: Durango, Cira R. García De
name: Wiechmann, Svenja
name: Boos, Sophie L.
name: Michl, Marlies
name: Neumann, Jens
name: Hermeking, Heiko
name: Kuster, Bernhard
name: Jung, Peter
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
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: Developmental Biology
subject: Cancer

description: Additional file 8. LARGE2 expression and O-glycosylation of α-DG in human PDOs and intestinal epithelium is enriched in the Wnt-driven stem/progenitor cell compartment. Related to Fig. 5.
Co-integração entre os mercados spot e futuro: evidências dos mercados de boi gordo e soja
Creators: name: Abitante, Kleber Giovelli
name: Abitante, Kleber Giovelli
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Cointegration
subject: Futures markets
subject: Soybean
subject: Live cattle.

description: One of the measures of future markets’ efficiency is its linkage with the spot market. The objective of this paper is to verify the existence of a statistical linkage between spot market and the Brazilian Mercantile & Future Exchange (BM&F) live cattle future market and between spot market and the BM&F and Chicago Board of Trade (CBOT) soybean future market. In addition, an efficiency indicator for the BM&F live cattle future market was estimated. With regard to live cattle, the daily time series used was price of the future contracts with maturity month between January/05 and November/05 and for soybean, the price of the future contracts used was with maturity between March 2005 until September 2005 and November 2005. Concerning live cattle, evidences of co-integration on contracts with maturity month on March, April, September, October and November of 2005 were found. As for the BM&F soybean future contract, co-integration was detected for contracts with maturity at April, May and November, 2005. Co-integration evidence was identified for the CBOT soybean future with maturity at January, March, September and November of 2005. The efficiency indicator for live cattle future contract was higher, indicating that this market may be useful for price discovery of live cattle.
CP violation in semileptonic tau lepton decays
Creators: name: Delepine, D.
name: Castro, G. Lopez
name: Lozano, L. T. Lopez
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The leading order contribution to the direct CP asymmetry in tau^{+/-} -> K^{+/-} pi^0 nu_{tau} decay rates is evaluated within the Standard Model. The weak phase required for CP violation is introduced through an interesting mechanism involving second order weak interactions, which is also responsible for tiny violations of the Delta S= Delta Q rule in K_{l3} decays. The calculated CP asymmetry turns out to be of order 10^{-12}, leaving a large window for studying effects of non-standard sources of CP violation in this observable.
description: 5 pages, 3 figures, version published in Phys.Rev.D
Unpacking the Links Between Women's Empowerment and Child Nutrition Evidence Using Nationally Representative Data From Bangladesh
Creators: name: Bhagowalia, Priya
name: Menon, Purnima
name: Quisumbing, Agnes R.
name: Soundararajan, Vidhya
name: Bhagowalia, Priya
name: Menon, Purnima
name: Quisumbing, Agnes R.
name: Soundararajan, Vidhya
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Development
subject: malnutrition
subject: gender
subject: domestic violence
subject: empowerment

description: This paper examines the relationship between gender inequality and nutrition using direct indicators of empowerment such as mobility, decision-making power, and attitudes towards verbal and physical abuse. Our approach draws on the theory of the household as a utility maximizing unit that uses women’s status and characteristics as inputs to produce a final good, child health. Indices that capture distinct dimensions of women’s empowerment are used as explanatory variables along with controls for age and sex of the child, maternal height and education. Results from Logit models indicate that a greater degree of women’s empowerment is associated with better long term nutritional status of children. Attitudes towards domestic violence have a significant effect on chronic malnutrition and mobility; participation in decision making and ability to purchase food are important influences on dietary diversity. Our findings warrant further research and attention to inform the design and implementation of interventions. Specific research questions that emerge from these analyses relate to types of individual and community interventions that can reduce prevalence of violence and empower women in order to achieve better health and wellbeing outcomes; and policy actions, including legal instruments that can empower women and address the links between empowerment and nutrition.
Em busca de um novo paradigma para o seguro rural no Brasil
Creators: name: Ozaki, Vitor Augusto
name: Ozaki, Vitor Augusto
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: crop insurance
subject: paradigm
subject: subsidy

description: The implementation of a crop insurance program is an old requirement of the agricultural sector. After the failure of the National Crop Insurance Company (CNSA), in the period of 1954 through 1966, the federal government started to stimulate the agricultural insurance market. Aiming increase the crop insurance operations the Government approved Law n. 10.823 which subsidize part of the premium paid by farmers. The nature of this work is essentially analytical, such that any quantitative model has been established. Over the years, government risk management tools, such as, Proagro and some private insurance companies have had unsatisfactory financial results suggesting that the current crop insurance model presents signals of decline. This article shows the main initiatives, state and private, and suggests a set of measures to develop the agricultural insurance in the country.
Additional file 9 of Wnt-driven LARGE2 mediates laminin-adhesive O-glycosylation in human colonic epithelial cells and colorectal cancer
Creators: name: Dietinger, Vanessa
name: Durango, Cira R. García De
name: Wiechmann, Svenja
name: Boos, Sophie L.
name: Michl, Marlies
name: Neumann, Jens
name: Hermeking, Heiko
name: Kuster, Bernhard
name: Jung, Peter
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
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: Developmental Biology
subject: Cancer

description: Additional file 9. LARGE2 expression in mouse adenoma and human engineered adenoma organoid (ADO) pairs carrying different APC truncation mutations. Related to Fig. 5J and Fig. 6.
Asynchronous Decentralized Learning of a Neural Network
Creators: name: Liang, Xinyue
name: Javid, Alireza M.
name: Skoglund, Mikael
name: Chatterjee, Saikat
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this work, we exploit an asynchronous computing framework namely ARock to learn a deep neural network called self-size estimating feedforward neural network (SSFN) in a decentralized scenario. Using this algorithm namely asynchronous decentralized SSFN (dSSFN), we provide the centralized equivalent solution under certain technical assumptions. Asynchronous dSSFN relaxes the communication bottleneck by allowing one node activation and one side communication, which reduces the communication overhead significantly, consequently increasing the learning speed. We compare asynchronous dSSFN with traditional synchronous dSSFN in the experimental results, which shows the competitive performance of asynchronous dSSFN, especially when the communication network is sparse.
Atores, canais de comercialização e consumo da mangaba no nordeste brasileiro
Creators: name: Mota, Dalva Maria Da
name: Schmitz, Heribert
name: Silva Junior, Josue Francisco Da
name: Mota, Dalva Maria Da
name: Schmitz, Heribert
name: Silva Junior, Josue Francisco Da
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Traditional populations
subject: Hancornia speciosa Gomes
subject: Tropical fruits
subject: Remaining areas of mangaba trees

description: The aim of this article is to analyse the processes which begins from raw material extraction to the consumption of mangaba, emphazising different actors, their relationships, marketing channels, and consumption characteristics. The research was carried out in the Northeast of Brazil (Brazilian states of Bahia, Alagoas, Sergipe and Pernambuco) using quantitative and qualitative approaches. The main results indicated weak domestication of mangaba trees to attend to an increasing market demand, and threats to extractivism by external factors.
Competition between Factors Determining Bright versus Dark Atomic States within a Laser Mode
Creators: name: Hemingway, Bryan
name: Akin, T. G.
name: Peil, Steven
name: Porto, J. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We observe bimodal fluorescence patterns from atoms in a fast atomic beam when the laser excitation occurs in the presence of a magnetic field and the atoms sample only a portion of the laser profile. The behavior is well explained by competition between the local intensity of the laser, which tends to generate a coherent-population-trapping (CPT) dark state in the $J=1$ to $J'=0$ system, and the strength of an applied magnetic field that can frustrate the CPT process. This work is relevant for understanding and optimizing the detection process for clocks or other coherent systems utilizing these transitions and could be applicable to in situ calibration of the laser-atom interaction, such as the strength of the magnetic field or laser intensity at a specific location.
A realidade da cadeia do trigo no Brasil: o elo produtores/cooperativas
Creators: name: Brum, Argemiro Luis
name: Muller, Patricia Kettenhuber
name: Brum, Argemiro Luis
name: Muller, Patricia Kettenhuber
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: wheat
subject: productive chain
subject: competitiveness

description: The present article is about the wheat productive chain in Brazil and focuses on the economic reality of its main connecting links, with emphasis on the links between agricultural and industrial production. Let it be accentuated that the article brings present time accounts of the sector in Brazil, from the result analysis of field research among agricultural producers, producer co-operatives and wheat mills. The study of the Brazilian wheat culture chain, with its problems, offers a broader view to understand the e country’s conditions, which would allow us not only to answer the exposed doubts, but over all to shed some light on the main paths traced by Brazil’s wheat production in these first years of the XXIst century. The national wheat culture is threatened and will hardly reach self-sufficiency, since Brazilian producers cannot become competitive enough, neither sustain comparative advantages particularly in relation to competitors from Argentina. Wheat commercialization faces equal misfortune, whether related to the product’s prices or to the quality demanded by the mills. Since the full withdrawal of state intervention in national wheat production, carried out in 1991/91, wheat production has been regulated merely by market moods, and this completely modified the status of Brazilian producer competitiveness and it’s negative aftermath is felt throughout chain itself. Thus, one of the main conclusions is that the Brazilian wheat chain does not function adequately, as the efficiency of the national production is kept in check, and its future, compromized.
The Phenomenology of Universal Extra Dimensions at Hadron Colliders
Creators: name: Macesanu, Cosmin
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Theories with extra dimensions of inverse TeV size (or larger) predict a multitude of signals which can be searched for at present and future colliders. In this paper, we review the different phenomenological signatures of a particular class of models, universal extra dimensions, where all matter fields propagate in the bulk. Such models have interesting features, in particular Kaluza-Klein (KK) number conservation, which makes their phenomenology similar to that of supersymmetric theories. Thus, KK excitations of matter are produced in pairs, and decay to a lightest KK particle (LKP), which is stable and weakly interacting, and therefore will appear as missing energy in the detector (similar to a neutralino LSP). Adding gravitational interactions which can break KK number conservation greatly expands the class of possible signatures. Thus, if gravity is the primary cause for the decay of KK excitations of matter, the experimental signals at hadron colliders will be jets + missing energy, which is typical of supergravity models. If the KK quarks and gluons decay first to the LKP, which then decays gravitationally, the experimental signal will be photons and/or leptons (with some jets), which resembles the phenomenology of gauge mediated supersymmetry breaking models.
description: review article, 39 pages, 10 figures, uses IJMPA style files
An Ontology for the Materials Design Domain
Creators: name: Li, Huanyu
name: Armiento, Rickard
name: Lambrix, Patrick
Publisher: name: arXiv
Year: 2020
Subjects: subject: Databases (cs.DB)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In the materials design domain, much of the data from materials calculations are stored in different heterogeneous databases. Materials databases usually have different data models. Therefore, the users have to face the challenges to find the data from adequate sources and integrate data from multiple sources. Ontologies and ontology-based techniques can address such problems as the formal representation of domain knowledge can make data more available and interoperable among different systems. In this paper, we introduce the Materials Design Ontology (MDO), which defines concepts and relations to cover knowledge in the field of materials design. MDO is designed using domain knowledge in materials science (especially in solid-state physics), and is guided by the data from several databases in the materials design field. We show the application of the MDO to materials data retrieved from well-known materials databases.
description: 16 pages
Impact of land readjustment project on farmland use and structural adjustment: The case of Niigata, Japan
Creators: name: Arimoto, Yutaka
name: Arimoto, Yutaka
Publisher: name: Unknown
Year: 2010
Subjects: subject: Land Economics/Use
subject: land readjustment
subject: consolidation
subject: fragmentation
subject: farmland rental
subject: farmland abandonment
subject: Japan

description: This paper examines the impact of farmland readjustment projects on farmland use and structural adjustment in Niigata, Japan. We use census data of rural communities for 1990 and 2000 to conduct pooled regression, first-difference, difference-in-differences, and propensity score matching estimations. We find positive impact of farmland readjustment projects in alleviating farmland abandonment and in facilitating outsourcing of agricultural works and farmland rental. The results suggest that farmland consolidation may be an effective option to resolve farmland fragmentation and to promote structural adjustment in concentrating farmland to efficient farmers which is a premise for strengthening the agricultural sector under economies of scale.
Additional file 1 of Comparative genomics of four strains of the edible brown alga, Cladosiphon okamuranus
Creators: name: Nishitsuji, Koki
name: Arimoto, Asuka
name: Yonashiro, Yoshitaka
name: Hisata, Kanako
name: Fujie, Manabu
name: Kawamitsu, Mayumi
name: Shoguchi, Eiichi
name: Satoh, Noriyuki
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Location of Okinawa in Japan Okinawa is the southernmost prefecture of Japan. Figure S2. A summary of genome size estimates for three strains of Cladosiphon okamuranus using GenomeScope.
On self-approaching and increasing-chord drawings of 3-connected planar graphs
Creators: name: Nöllenburg, Martin
name: Prutkin, Roman
name: Rutter, Ignaz
Publisher: name: Journal of Computational Geometry
Year: 2016

description: An $st$-path in a drawing of a graph is self-approaching if during the traversal of the corresponding curve from $s$ to any point $t'$ on the curve the distance to $t'$ is non-increasing. A path has increasing chords if it is self-approaching in both directions. A drawing is self-approaching (increasing-chord) if any pair of vertices is connected by a self-approaching (increasing-chord) path. We study self-approaching and increasing-chord drawings of triangulations and 3-connected planar graphs. We show that in the Euclidean plane, triangulations admit increasing-chord drawings, and for planar 3-trees we can ensure planarity. We prove that strongly monotone (and thus increasing-chord) drawings of trees and binary cactuses require exponential resolution in the worst case, answering an open question by Kindermann et al. (GD 2014). Moreover, we provide a binary cactus that does not admit a self-approaching drawing. Finally, we show that 3-connected planar graphs admit increasing-chord drawings in the hyperbolic plane and characterize the trees that admit such drawings.
description: Journal of Computational Geometry, Vol. 7 No. 1 (2016)
O pass-through das variações da taxa de câmbio para os preços dos principais produtos exportados pelo Brasil
Creators: name: Tejada, Cesar Augusto Oviedo
name: Silva, Agnaldo Gomes Da
name: Tejada, Cesar Augusto Oviedo
name: Silva, Agnaldo Gomes Da
Publisher: name: Unknown
Year: 2008
Subjects: subject: Political Economy
subject: exchange rate pass-through
subject: export prices
subject: Brazil

description: The aim of the present paper is to analyze the relationship between exchange rates changes and prices of main Brazilian exports, the exchange rate pass-through. A varying-parameter model was used to estimate the coefficients of pass-through. The results suggest that incomplete pass-through of exchange rate changes is a pervasive phenomenon. These results are in line with other estimates presented in the literature.
Ultracold Fermion Cooling Cycle using Heteronuclear Feshbach Resonances
Creators: name: Morales, M. A.
name: Nygaard, N.
name: Williams, J. E.
name: Clark, Charles W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider an ideal gas of Bose and Fermi atoms in a harmonic trap, with a Feshbach resonance in the interspecies atomic scattering that can lead to formation of fermionic molecules. We map out the phase diagram for this three-component mixture in chemical and thermal equilibrium. Considering adiabatic association and dissociation of the molecules, we identify a possible cooling cycle, which in ideal circumstances can yield an exponential increase of the phase-space density.
description: 4 pages, 4 embedded figures
Public participation GIS : a proposed model for community organisations
Creators: name: Holley, Alison M.
Publisher: name: University of British Columbia
Year: 2009

description: The concept of Public Participation GIS (PPGIS) arose, in part, as a result of GIS and society research initiatives which were conducted during the 1990s. During that same era, various researchers began to introduce GIS applications within local neighbourhood settings, and document their efforts in peer-reviewed journals. PPGIS proponents viewed the technology as empowering for community groups seeking entry into the public policy decision-making arena, whereas detractors believed PPGIS was marginalising for organisations which lacked the capacity to use such technologies. By the latter half of that decade, the term PPGIS was used to refer to myriad grassroots GIS efforts which heralded from all over the globe, with the noticeable exception of Canada. An important consideration in this thesis is why there is a paucity of PPGIS initiatives in Canada. In order to further understand the complexity of this issue, I examine a number of frameworks used for conceptualising, implementing, and evaluating PPGIS initiatives, which are derived from research in the United States (US). Several inner-city case studies are presented in order to illustrate various methods undertaken by US researchers implementing community-based PPGIS projects. I then propose a generic model for PPGIS initiatives, which is comprised of three phases, including: (1) capacity assessment for a PPGIS, (2) design of a PPGIS prototype, and (3) sustainable PPGIS. Research indicates that restricted access to public data, in the Canadian context, may be a primary reason for the relative absence of PPGIS efforts in that nation (c.f. Klinkenberg 2003). Given that most PPGIS initiatives have yet to reach a level of sustainability in the US, it is quite probable that similar efforts in Canada will not succeed beyond a rudimentary level. In such instances in the US, an Internet Map Server (IMS) has frequently been deemed appropriate to suit the geographic information needs of community organisations. An IMS does not, however, represent a fully participatory GIS; rather, in this instance, an external "host" provides the "client" with information, via the Internet. As such, I conclude my research with recommendations for future Canadian PPGIS endeavours, which are based upon the proposed PPGIS model and evidence provided in the thesis.
SSSPM J1444-2019: an extremely high proper motion, ultracool subdwarf
Creators: name: Scholz, R. -D.
name: Lodieu, N.
name: McCaughrean, M. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the discovery of a new extreme high proper motion object (3.5 arcsec/year) which we classify as an ultracool subdwarf with [M/H] = -0.5. It has a formal spectral type of sdM9 but also shows L-type features: while the VO bands are completely absent, it exhibits extremely strong TiO absorption in its optical spectrum. With a radial velocity of about -160 km/s and a rough distance estimate of 16--24 pc, it is likely one of the nearest halo members crossing the Solar neighbourhood with a heliocentric space velocity of (U,V,W)=(-244,-256,-100)+/-(32,77,6) km/s.
description: 4 pages, 4 figures (Fig.1a-d available as jpg files), accepted for publication in Astronomy & Astrophysics Letters
Agricultural outsourcing: A comparison between the Netherlands and Japan
Creators: name: Igata, Masayo
name: Hendriksen, Astrid
name: Heijman, Wim J.M.
name: Igata, Masayo
name: Hendriksen, Astrid
name: Heijman, Wim J.M.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: Agricultural outsourcing
subject: farm size
subject: diversification
subject: labour shortage
subject: cultural factors

description: Outsourcing may well be a tool for increasing the efficiency of Japanese agriculture. However, outsourcing is not frequently used by Japanese farmers in their day-to-day management. This has resulted in a weakly developed market for agricultural contracting services. In order to take a closer look at the reasons for making use of outsourcing, a comparative study was carried out between the agricultural contracting sector in Japan and that in the Netherlands, where agricultural outsourcing is a regular practice. In the Netherlands, especially small, diversified farms that lack sufficient labour tend to outsource agricultural work; in Japan, the situation is far less clear. Cultural factors possibly play an important role.