cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Variable Input Allocation: Why Heterogeneity Matters?
Creators: name: Letort, Elodie
name: Carpentier, Alain
name: Letort, Elodie
name: Carpentier, Alain
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Crop Production/Industries
subject: Farm Management
subject: Research Methods/ Statistical Methods
subject: Variable Input Allocation
subject: heterogeneity

description: The allocation of variable inputs among crops is a common problem in applied studies that use farm accountancy data. Standard farm accounting information is typically restricted to aggregate or whole-farm input expenditures; there are usually no details on how these expenditures are split among crops. Most studies employing multi-crop econometric models with land as an allocable fixed input consider generally variable input uses at the farm level (Moore and Negri, 1992). However, the allocation of variable inputs among crops appears to be useful for several objectives, such as to analyze the evolution of gross margins at the crop level, to investigate the empirical validity of a multi-crop econometric model and to provide important information for extension agents or farmer advisors.
The adoption of water saving irrigation practices in the Region of West Macedonia
Creators: name: Michailidis, Anastasios
name: Nastis, Stefanos A.
name: Loizou, Efstratios
name: Mattas, Konstadinos
name: Michailidis, Anastasios
name: Nastis, Stefanos A.
name: Loizou, Efstratios
name: Mattas, Konstadinos
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Farm Management
subject: Land Economics/Use
subject: adoption-diffusion
subject: extension
subject: irrigation
subject: water saving
subject: water policy

description: The use of irrigation water for agricultural production requires innovative and sustainable research and an appropriate transfer of water saving technologies. The main aim of this paper is to explore the irrigating behaviour of farmers examining factors affecting their decision to adopt novel water saving practices. In order to achieve the above aim both summary statistics and multivariate methodologies are employed. In particular, a two-step cluster analysis was used to explore the different adoption levels of water saving practices and a categorical regression model was estimated to explain this variation. Data were collected through a survey addressing 400 irrigators, carried out in 2008 in a typical Greek rural area. Results show that although respondents have already adopted several water saving practices the current irrigated agriculture cannot be sustained in a sustainable manner.
Generalized Darboux transformations for the KP equation with self-consistent sources
Creators: name: Xiao, Ting
name: Zeng, Yunbo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The KP equation with self-consistent sources (KPESCS) is treated in the framework of the constrained KP equation. This offers a natural way to obtain the Lax representation for the KPESCS. Based on the conjugate Lax pairs, we construct the generalized binary Darboux transformation with arbitrary functions in time $t$ for the KPESCS which, in contrast with the binary Darboux transformation of the KP equation, provides a non-auto-Bäcklund transformation between two KPESCSs with different degrees. The formula for N-times repeated generalized binary Darboux transformation is proposed and enables us to find the N-soliton solution and lump solution as well as some other solutions of the KPESCS.
description: 20 pages, no figures
Hazardous Agrochemicals, Smoking, and Farmers’ Differences in Wage-Risk Tradeoffs
Creators: name: Nastis, Stefanos A.
name: Michailidis, Anastasios
name: Nastis, Stefanos A.
name: Michailidis, Anastasios
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Farm Management
subject: Health Economics and Policy
subject: Labor and Human Capital
subject: agrochemicals
subject: smoking
subject: farming job risk
subject: compensating differentials
subject: risk preferences
subject: health impairment

description: This paper utilizes the theory of compensating differentials for job risks from the labor economics literature to evaluate farmers’ differences in wage-risk tradeoffs. In the context of job risks, the theory predicts that farmers who place a lower value on health status are willing to work for lower compensation on a risky job. The aim of the paper is to evaluate how the observed wage-risk tradeoff is affected by individual heterogeneity in risk preferences, by acknowledging variations in farmers’ revealed attitudes toward risk, both in job-related and non-job activities. The job risk measure employed is self-reported job risk of low back pain, the most recurring health risk faced by farmers. The job-related risky activity is the application of hazardous agrochemicals. The non-job activity is smoking. The primary finding of the study is that individual heterogeneity in risk attitudes is an important determinant of the risk premium workers receive, i.e., individual differences in other health-related activities are influential determinants of the observed wage-risk tradeoff. Keywords:
Modelling the Adoption of Crop Rotation Practices in Organic Mixed Farms
Creators: name: Renwick, Alan W.
name: Revoredo-Giha, Cesar
name: Topp, Kairsty
name: Renwick, Alan W.
name: Revoredo-Giha, Cesar
name: Topp, Kairsty
Publisher: name: Unknown
Year: 2007
Subjects: Crop Production/Industries
Farm Management

description: Taylor et al. (2001) noted that well designed rotations are fundamental to organic farming systems. Rotations help organic systems achieve a balance between crops which deplete fertility, in particular nitrogen, and soil organic matter, and crops which restore fertility. The paper discusses the choice of crop rotation in the context of organic mixed farm systems that include cereals and livestock. The analysis is performed by combining economics and biology with the intention of capturing a broader approach to measuring the resilience of farming systems. Thus, it considers that the farmer’s choice of a specific rotation is based on the expected economic return derived from the rotation, and also the biological benefits provided by the selected rotation. The analysis is based on organic crop rotation trials ran from 1991 to 2006 at a site in the north-east of Scotland (Tulloch, Aberdeen) (Taylor et al., 2006).
Food production, distribution and culture: public views, interests and concerns
Creators: name: Kupiec-Teahan, Beata
name: Leat, Philip M.K.
name: Revoredo-Giha, Cesar
name: Kupiec-Teahan, Beata
name: Leat, Philip M.K.
name: Revoredo-Giha, Cesar
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Policy
subject: Scotland
subject: Text analysis
subject: Consumer research

description: A basic right of both a consumer and a citizen is the right to be heard, and their voiced concerns have to be taken into account when developing policies and obtaining trust for government actions. Therefore this study focuses on consumers’ interests, opinions and expectations which are identified and categorised according to subject area, degree of involvement and political agenda of a consumer. The paper draws on the responses of individual members of the public in the National Food Policy discussion initiated by the Scottish Government in 2008. Altogether 246 responses were subjected to quantitative analysis of texts, supported by text mining. A variety of interests and opinions underpinning the political agendas of individuals responding to the National Food Policy discussion document were identified and discussed in the paper in the context of political consumerism and influence citizens-consumers are likely to have on policy development and its subsequent implementation. In the broad perspective of the Scottish food supply chain, the three pillars of sustainability: economy, environment and society, are defining the nature of public concerns and expectations. Findings could be applied across many different policy areas including food production and distribution, heath education and promotion, support of small local businesses, environment protection, travel, waste management/recycling and others.
A Spatial Time-Frequency Hopping Index Modulated Scheme in Turbulence-free Optical Wireless Communication Channels
Creators: name: Escribano, Francisco J.
name: Wagemakers, Alexandre
name: Kaddoum, Georges
name: Evangelista, Joao V. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this article, we propose an index modulation system suitable for optical communications, where the intensity of the light is modulated along the time, space and frequency dimensions, building a Frequency-Hopping Spatial Multi-Pulse Position Modulation (FH-SMPPM). We analyze its performance from the point of view of its efficiency in power and spectrum, and its implementation complexity and required receiver latency. We analyze its error probability in the case of the non-turbulent free-space optical (FSO) channel. We derive formulas for the average symbol and bit error probabilities, and the simulation results show that they are tight enough for a wide range of signal-to-noise ratios and system parameters. We compare FH-SMPPM with other proposed index modulated systems of the same nature, and we highlight its distinctive advantages, like the flexibility to build an appropriate waveform under different constraints and objectives. Moreover, FH-SMPPM shows to be better performing in BER/SER and/or offer advantages in efficiency with respect to those alternatives, thus offering the possibility to be adopted for a variety of contexts.
description: 14 pages, 8 figures, accepted for publication at IEEE Transactions on Communications
Mathematical model of COVID-19 intervention scenarios for Sao Paulo- Brazil
Creators: name: Neto, Osmar Pinto
name: Reis, Jose Clark
name: Brizzi, Ana Carolina Brisola
name: Zambrano, Gustavo Jose
name: de Souza, Joabe Marcos
name: Pedroso, Wellington Amorim
name: Pedreiro, Rodrigo Cunha de Mello
name: Brizzi, Bruno de Matos
name: Abinader, Ellysson Oliveira
name: Kennedy, Deanna M.
name: Zangaro, Renato Amaro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: An epidemiological compartmental model was used to simulate social distancing strategies to contain the COVID-19 pandemic and prevent a second wave in Sao Paulo, Brazil. Optimization using genetic algorithm was used to determine the optimal solutions. Our results suggest the best-case strategy for Sao Paulo is to maintain or increase the current magnitude of social distancing for at least 60 more days and increase the current levels of personal protection behaviors by a minimum of 10% (e.g., wearing facemasks, proper hand hygiene and avoid agglomeration). Followed by a long-term oscillatory level of social distancing with a stepping-down approach every 80 days over a period of two years with continued protective behavior.
description: 24 pages, 4 figures, 1 table
Globalization, democratization and knowledge production at three South African Universities
Creators: name: Muthayan, Saloshini
Publisher: name: University of British Columbia
Year: 2009

description: Following the demise of apartheid in 1994, new higher education policies have placed high expectations on universities to play a pivotal role in the transformation. This study examines the responses of academics, graduate students, senior managers and librarians at three universities to the changes resulting from globalization (neoliberal reforms, growth and new technologies) and democratization (redress and equity) and whether these universities have the research capacity to contribute to social justice in South Africa.. Case studies were conducted at the universities of Port Elizabeth, Fort Hare and Rhodes. In-depth interviews and surveys were conducted with 108 participants across the disciplines who identified the dominant changes as increased managerialism/ entrepreneurialism, the establishment of representative governance structures and equity policies and a shift from Mode 1 (pure, basic and fundamental research) to Mode 2 (applied, transdisciplinary and transinstitutional) form of research. Adopting critical postmodern, feminist and decolonising methodologies, I find that the tension between the dual goals of globalization and democratization has made it difficult for universities to pay equal attention to achieving growth and social redress. The effect of the neoliberal policies embedded in modernist assumptions has been to silence the redress intentions of these policies, thereby bringing into jeopardy the transformation of South African higher education. First, managerialism redirects the energies of these institutions away from the democratization project. Second, neoliberal economic reforms place pressures on researchers, reducing their research capacity. Third, the equity emphasis on representativeness and numbers serves the project of modernity instead. Fourth, the neoliberal preoccupation with merit reproduces the hegemony of the dominant group. Fifth, Mode 2 research is not being applied appropriately in research involving communities and indigenous knowledge systems. Sixth, decolonizing methodologies, as well as critical postmodern methodologies, are needed to deconstruct and 'de-struct' the modernist and hence colonial and racist apparatuses of these institutions. Although the three universities evince commitment and hope for the future, their capacity to contribute to growth and redress through research remains constrained by the dissonance between policy intents and implementation. The study makes a number of recommendations for building research capacity that will advance the transformation of these institutions and allow for stronger research partnerships with indigenous communities.
Optimization of Chaos-based Coded Modulations for Compensation of Amplifier Nonlinearities
Creators: name: Escribano, Francisco J.
name: Sáez-Landete, José
name: Wagemakers, Alexandre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work we expand the possibilities of a known class of chaos-based coded modulation (CCM) systems to address the problem of high-power amplifier (HPA) nonlinearity. The hypothesis is that the CCM nonlinear nature can be exploited to counteract its effects on the system performance, avoiding the need of a predistorter. We propose an optimization method for the design of the CCM to prove this hypothesis. The results show that, for a given back-off level, a nonlinear mapping function for the chaos-based encoder and decoder can be designed to compensate the HPA effect on the error rate.
description: 2 pages, 3 figures
Invariant measure for 2D stochastic Cahn-Hilliard-Navier-Stokes equations
Creators: name: Qiu, Zhaoyang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Using the Maslowski and Seidler method, the existence of invariant measure for 2-dimensional stochastic Cahn-Hilliard-Navier-Stokes equations with multiplicative noise is proved in state space $L_x^2\times H^1$, working with the weak topology. Also, the existence of global pathwise solution is investigated using the stochastic compactness argument.
Additional file 1 of Global longitudinal strain is associated with better outcomes in transcatheter aortic valve replacement
Creators: name: Al-Rashid, Fadi
name: Totzeck, Matthias
name: Saur, Nadine
name: Jánosi, Rolf Alexander
name: Lind, Alexander
name: Mahabadi, Amir A.
name: Tienush Rassaf
name: Raluca-Ileana Mincu
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Supplementary material - Subgroup analysis.
Quasi-normal Modes and Thermal Fluctuations of Charged Black Hole with Weyl Corrections
Creators: name: Sharif, M.
name: Akhtar, Zunaira
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we study thermodynamics, quasi-normal modes and thermal fluctuations of a charged black hole with Weyl corrections. We first obtain thermodynamic quantities such as Hawking temperature, entropy, and heat capacity for non-rotating as well as rotating versions of this black hole. We also evaluate temperature through quantum tunneling mechanism which is exactly the same as found through surface gravity. We then discuss the relation between Davies's point and quasi-normal modes. Finally, we investigate the effects of thermal fluctuations on the uncorrected thermodynamic quantities. It is concluded that the logarithmic corrections originated from thermal fluctuations make the system more unstable for small BHs.
description: 28 pages, 17 figures, to appear in PDU
The normal homosexual in post-apartheid South Africa : new queer geographies
Creators: name: Oswin, Natalie
Publisher: name: University of British Columbia
Year: 2009

description: In the United States, from whence much of Euroamerican queer theorizing stems, the radical heritage of the gay and lesbian movement has been dealt a serious blow by the emergence of a "new gay politics" that aims simply to secure a place at the table for the "good gay" citizen. Thus a line between the normal and the queer has been conceptually entrenched. The maintenance of such a binary is problematic because it betrays the underpinnings of queer theory. It also limits the ways in which we understand queer normalizations as they have taken place in various contexts around the globe over the last decade. There is a worldwide (though sporadic and diffuse) trend towards greater recognition of human rights for sexual minorities at the national scale. Further, the purported economic benefits of gay-friendliness have given rise to official pink tourism marketing strategies. This thesis examines the validity of the queer-normal divide outside the heated context of the United States by considering the cultural politics of homosexuality in South Africa. In 1996, South Africa became the first country in the world to constitutionally affirm homosexuals' rights. Since then, the state has made gay-friendliness a central facet of tourism marketing strategies at both the local and national scales. It is thus officially normal to be queer in post-apartheid South Africa. Utilizing archival and qualitative methods, I have examined expressions of gay and lesbian culture and politics in the country and found neither the straightforward appropriation of queerness by the state or market nor a resistant queer politics outside their purview. Queer theorists within and beyond geography are used to theorizing from a position of exclusion just as scholars engaged in feminist and anti-racist studies are. But since the queer and the normal coexist in South Africa, I conclude that the tendency to dismiss spaces of inclusion as inconsequential sites of study renders our analyses of the nature and extent of space available to identity politics struggles partial. As such, I suggest that those working on geographies of sexualities might usefully explore the notion of a queer geopolitics.
Comprehensive Symmetric-Hybrid ring design for pEDM experiment at below $10^{-29}e\cdot$cm
Creators: name: Omarov, Zhanibek
name: Davoudiasl, Hooman
name: Haciomeroglu, Selcuk
name: Lebedev, Valeri
name: Morse, William M.
name: Semertzidis, Yannis K.
name: Silenko, Alexander J.
name: Stephenson, Edward J.
name: Suleiman, Riad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A concise demonstrative summary of the Symmetric Hybrid ring design for the storage ring proton electric dipole moment experiment is presented. Critical issues such as lattice design, background electrical fields,geometrical phase, general relativity, spin coherence time and polarimeter systematics are presented. Overall, we find that with the currently proposed design iteration, systematic error sources are reduced by orders of magnitude and that the ring alignment requirements are within the currently available technology.
description: 19 pages, 16 figures
Additional file 1 of e-Health interventions for healthy aging: a systematic review
Creators: name: Buyl, Ronald
name: Idrissa Beogo
name: Fobelets, Maaike
name: Deletroz, Carole
name: Landuyt, Philip Van
name: Dequanter, Samantha
name: Gorus, Ellen
name: Bourbonnais, Anne
name: Anik Giguère
name: Lechasseur, Kathleen
name: Gagnon, Marie-Pierre
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Supplementary file 1. PRISMA checklist. Supplementary file 2. Search strategies. Supplementary file 3. List of excluded references and reasons.
Structural properties of the sesquicarbide superconductor La2C3 at high pressure
Creators: name: Wang, X.
name: Loa, I.
name: Syassen, K.
name: Kremer, R. K.
name: Simon, A.
name: Hanfland, M.
name: Ahn, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The effect of pressure on the structural properties of lanthanum sesquicarbide La2C3 (T_c = 13 K) has been investigated at room temperature by angle-dispersive powder x-ray diffraction in a diamond anvil cell. The compound remains in the cubic Pu2C3-type structure at pressures up to at least 30 GPa. The corresponding equation of state parameters are reported and discussed in terms of phase stability of La2C3. Pressure-volume data of the impurity phase LaC2 are reported also for pressures up to 13 GPa.
description: 5 pages, 6 figures
Probabilistic Optically-Selective Single-molecule Imaging Based Localization Encoded (POSSIBLE) Microscopy for Ultra-superresolution Imaging
Creators: name: Mondal, Partha Pratim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Image and Video Processing (eess.IV)
subject: Applied Physics (physics.app-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: To be able to resolve molecular-clusters it is crucial to access vital informations (such as, molecule density and cluster-size) that are key to understand disease progression and the underlying mechanism. Traditional single-molecule localization microscopy (SMLM) techniques use molecules of variable sizes (as determined by its localization precisions (LPs)) to reconstruct super-resolution map. This results in an image with overlapping and superimposing PSFs (due to a wide size-spectrum of single molecules) that degrade image resolution. Ideally it should be possible to identify the brightest molecules (also termed as, fortunate molecules) to reconstruct ultra-superresolution map, provided sufficient statistics is available from the recorded data. POSSIBLE microscopy explores this possibility by introducing narrow probability size-distribution of single molecules (narrow size-spectrum about a predefined mean-size). The reconstruction begins by presetting the mean and variance of the narrow distribution function (Gaussian function). Subsequently, the dataset is processed and single molecule filtering is carried out by the Gaussian distribution function to filter out unfortunate molecules. The fortunate molecules thus retained are then mapped to reconstruct ultra-superresolution map. In-principle, the POSSIBLE microscopy technique is capable of infinite resolution (resolution of the order of actual single molecule size) provided enough fortunate molecules are experimentally detected. In short, bright molecules (with large emissivity) holds the key. Here, we demonstrate the POSSIBLE microscopy technique and reconstruct single molecule images with an average PSF sizes of 15 nm, 30 nm and 50 nm. Results show better-resolved Dendra2-HA clusters with large cluster-density in transfected NIH3T3 fibroblast cells as compared to the traditional SMLM techniques.
description: 9 pages
Earth Matter Effects at Very Long Baselines and the Neutrino Mass Hierarchy
Creators: name: Gandhi, Raj
name: Ghoshal, Pomita
name: Goswami, Srubabati
name: Mehta, Poonam
name: Sankar, S Uma
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study matter effects which arise in the muon neutrino oscillation and survival probabilities relevant to atmospheric neutrino and very long baseline beam experiments. The inter-relations between the three probabilities P_{μe}, P_{μτ} and P_{μμ} are examined. It is shown that large and observable sensitivity to the neutrino mass hierarchy can be present in P_{μμ} and P_{μτ}. We emphasize that at baselines of > 7000 Km, matter effects in P_{μτ} can be large under certain conditions. The muon survival rates in experiments with very long baselines thus depend on matter effects in both P_{μτ} and P_{μe}. We indicate where these effects are sensitive to θ_{13}, and identify ranges of E and L where the event rates increase with decreasing θ_{13}, providing a handle to probe small θ_{13}. The effect of parameter degeneracies in the three probabilities at these baselines and energies is studied in detail. Realistic event rate calculations are performed for a charge discriminating 100 kT iron calorimeter which demonstrate the possibility of realising the goal of determining the neutrino mass hierarchy using atmospheric neutrinos. It is shown that a careful selection of energy and baseline ranges is necessary in order to obtain a statistically significant signal, and that the effects are largest in bins where matter effects in both P_{μe} and P_{μτ} combine constructively. Under these conditions, upto a 4σsignal for matter effects is possible (for Δ_{31}>0) within a timescale appreciably shorter than the one anticipated for neutrino factories.
description: 40 pages, 27 figures, version to match the published version
Additional file 1 of Productivity costs from a dengue episode in Asia: a systematic literature review
Creators: name: Hung, Trinh Manh
name: Shepard, Donald S.
name: Bettis, Alison A.
name: Nguyen, Huyen Anh
name: McBride, Angela
name: Clapham, Hannah E.
name: Turner, Hugo C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 1. Overview of the methods applied to calculate productivity costs.
Unified semiclassical approach to isoscalar collective modes in heavy nuclei
Creators: name: Abrosimov, V. I.
name: Dellafiore, A.
name: Matera, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A semiclassical model based on the solution of the Vlasov equation for finite systems with a sharp moving surface has been used to study the isoscalar quadrupole and octupole collective modes in heavy spherical nuclei. Within this model, a unified description of both low-energy surface modes and higher-energy giant resonances has been achieved by introducing a coupling between surface vibrations and the motion of single nucleons. Analytical expressions for the collective response functions of different multipolarity can be derived by using a separable approximation for the residual interaction between nucleons. The response functions obtained in this way give a good qualitative description of the quadrupole and octupole response in heavy nuclei. Although shell effects are not explicitly included in the theory, our semiclassical response functions are very similar to the quantum ones. This happens because of the well known close relation between classical trajectories and shell structure. The role played by particular nucleon trajectories and their connection with various features of the nuclear response is displayed most clearly in the present approach, we discuss in some detail the damping of low-energy octupole vibrations and give an explicit expression showing that only nucleons moving on triangular orbits can contribute to this damping.
description: 9 pages, 2 figures, Talk presented at the 8th International Spring Seminar on Nuclear Physics on Key Topics in Nuclear Structure, Paestum, Italy, May 23-27, 2004
Additional file 2 of Productivity costs from a dengue episode in Asia: a systematic literature review
Creators: name: Hung, Trinh Manh
name: Shepard, Donald S.
name: Bettis, Alison A.
name: Nguyen, Huyen Anh
name: McBride, Angela
name: Clapham, Hannah E.
name: Turner, Hugo C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 2 Description of the adjustment for inflation, Table S1: The estimated productivity losses of patients and their informal caregivers, Figure S1: The average reported productivity costs as a fraction of the study settings per capita GDP, The search terms and PRISMA CHECKLIST.
Additional file 1 of Leopard seal diets in a rapidly warming polar region vary by year, season, sex, and body size
Creators: name: Krause, Douglas J.
name: Goebel, Michael E.
name: Kurle, Carolyn M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1. Four data and analysis tables providing mean isotope values for prey sources, mean isotope values for consumer tissues, model-estimated leopard seal dietary proportions, and raw isotope data.
Searching for globular cluster chemical anomalies on the main sequence of a young massive cluster
Creators: name: Cabrera-Ziri, I.
name: Speagle, J. S.
name: Dalessandro, E.
name: Usher, C.
name: Bastian, N. J.
name: Salaris, M.
name: Martocchia, S.
name: Kozhurina-Platais, V.
name: Niederhofer, F.
name: Lardo, C.
name: Larsen, S. S.
name: Saracino, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The spectroscopic and photometric signals of the star-to-star abundance variations found in globular clusters seem to be correlated with global parameters like the cluster's metallicity, mass and age. Understanding this behaviour could bring us closer to the origin of these intriguing abundance spreads. In this work we use deep HST photometry to look for evidence of abundance variations in the main sequence of a young massive cluster NGC 419 ($\sim10^5$ M$_{\odot}$, $\sim1.4$ Gyr). Unlike previous studies, here we focus on stars in the same mass range found in old globulars ($\sim0.75-1$ M$_{\odot}$), where light elements variations are detected. We find no evidence for N abundance variations among these stars in the $Un-B$ and $U-B$ CMD of NGC 419. This is at odds with the N-variations found in old globulars like 47 Tuc, NGC 6352 and NGC 6637 with similar metallicity to NGC 419. Although the signature of the abundance variations characteristic of old globulars appears to be significantly smaller or absent in this young cluster, we cannot conclude if this effect is mainly driven by its age or its mass.
description: 9 pages, 8 figures, accepted for publication in MNRAS
The Importance of Water Property Rights: Lessons from South Africa and Tunisia
Creators: name: Speelman, Stijn
name: Frija, Aymen
name: Buysse, Jeroen
name: Van Huylenbroeck, Guido
name: Speelman, Stijn
name: Frija, Aymen
name: Buysse, Jeroen
name: Van Huylenbroeck, Guido
Publisher: name: Unknown
Year: 2010
Subjects: Resource /Energy Economics and Policy

description: With increasing water scarcity, research on policy options for improved water allocation and governance becomes an urgent priority for many developing and developed countries. Evaluating institutional alternatives is however a challenging task. This article takes a comparative approach and compares case study data from Tunisia and South Africa highlighting the importance of the water rights system for irrigators. Using contingent valuation methods the benefits for water users of changes in water rights systems are quantified. In both countries WTP estimates reveal that from the farmers’ perspective significant improvements can be made to the current water rights systems. This is valuable information for policy makers to guide institutional reforms.
Reciprocity relations between ordinary temperature and the Frieden-Soffer's Fisher-temperature
Creators: name: Pennini, F.
name: Plastino, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Frieden and Soffer conjectured some years ago the existence of a ``Fisher temperature" T_F that would play, with regards to Fisher's information measure I, the same role that the ordinary temperature T plays vis-a-vis Shannon's logarithmic measure. Here we exhibit the existence of reciprocity relations between T_F and T and provide an interpretation with reference to the meaning of T_F for the canonical ensemble.
description: 3 pages, no figures
Electromagnetic transitions for A=3 nuclear systems
Creators: name: Marcucci, L. E.
name: Viviani, M.
name: Schiavilla, R.
name: Kievsky, A.
name: Rosati, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent advances in the study of pd radiative capture in a wide range of center-of-mass energy below and above deuteron breakup threshold are presented and discussed.
description: Invited lead talk at the 19th European Conference on Few-Body Problems in Physics, Groningen, The Netherlands, 8/23 - 8/27 2004, 5 pages, 4 figures
Measuring Market Potential for Fresh Organic Fruit and Vegetable in Ghana
Creators: name: Owusu, Victor
name: Owusu, Michael Anifori
name: Owusu, Victor
name: Owusu, Michael Anifori
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: Willingness to Pay
subject: Price Premium
subject: Organic Products
subject: Consumer Perception
subject: Market Potential
subject: Africa

description: This paper examines the market potential for fresh organic lettuce and water melon with a recently collected data on consumers from Kumasi metropolis of Ghana. Using a doublebounded dichotomous choice contingent valuation technique, consumer’s willingness to pay is estimated with a Tobit model to address the zero willingness to pay responses in the sample data. As much as 71% of the consumers are willing to pay over 50% price premiums for organic vegetables and over 82% are willing to pay 1%–50% price premiums for organic fruits. The empirical results indicate that human capital, product attributes and consumer perception influence consumers’ willing to pay for organic food products. The estimated market potential for organic fruit is GH¢32,117,113 (US$ 26,453,433) per annum and that of organic vegetable is GH¢1,991,224 (US$1,640,083) per annum suggesting a huge market potential for organic fruits in Ghana.
Transformative sustainability learning : a united pedagogy of head, hands and heart
Creators: name: Sipos Randor, Yona
Publisher: name: University of British Columbia
Year: 2009

description: A novel pedagogy termed Transformative Sustainability Learning (TSL) is a simple, fundamental and useful outcome of three recent experimental learning collaborations through the University of British Columbia (UBC). These case studies include the first two years of a transdisciplinary UBC Earth and Ocean Sciences collaborative initiative, The Science and Practice of Sustainability; and one Community Service Learning program coordinated through the UBC Learning Exchange, coined Edibility and Awareness. This action research, largely conducted at the on-campus UBC Farm, constituted cyclical processes of innovation, implementation and reflection. These iterative processes formed the basis for four primary outcomes. First, the creation of TSL as a useful model for place-based, learner-centred university education for sustainability. Second, the development of Head, Hands and Heart, a simple organizing principle for working groups and individuals to engage in TSL by integrating cognitive learning activities (e.g. ecological-footprinting), practical skill sharing and enactment (including physical labour), and enablement of passion and values to be translated into goals and behaviour. Third, the development of a cognitive landscape for understanding TSL amongst related learning models clarifies its position as a valuable bridge amongst sustainability pedagogies that share characteristics of being inter/transdisciplinary, practical and/or place-based. Fourth, the explicit TSL model presented here may better enable transformations to sustainability through more effective planning, implementation and evaluation of collaborative sustainability pedagogies. In sum, TSL, at UBC and beyond, can clarify, elevate and further unify sustainability-oriented pedagogies while strengthening their transformative potential.
Impact of workers’ competence on their performance in the Malaysian private service sector
Creators: name: Ismail, Rahmah
name: Zainal Abidin, Syahida
name: Ismail, Rahmah
name: Zainal Abidin, Syahida
Publisher: name: Unknown
Year: 2010
Subjects: subject: Labor and Human Capital
subject: Workers’ competence
subject: workers’ performance
subject: workers’ characteristics
subject: service sector.

description: Malaysia has to address the challenges of globalization to become a developed nation by year 2020. Changing economy to one that is based on knowledge-economy and enhanced importance of the service sector needs a competitive workforce with high performance and capability. This article analyses the impact of workers’ competence towards their performance in the private service sector. The analysis is based on a sample of 1136 workers who are either executive, manager or professional from three service sub-sectors, namely, education, health and information and communication technology (ICT) in Selangor, Federal Territory of Kuala Lumpur, Penang and Johor collected in 2007/2008. In this analysis, Workers’ Performance Index (WPI) and Workers’ Competence Index (WCI) are developed and subsequently used to analyze factors determining workers’ performance in the selected service sector. The results show that workers’ competence has significant influence towards workers’ performance. Besides that, human capital and workers’ characteristics also determine workers’ performance in the service sector.
Chiral condensates and size of the sigma term
Creators: name: Peng, G. X.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The in-medium chiral condensate is studied with a new approach which has the advantage of no need for extra assumptions on the current mass derivatives of model parameters. It is shown that the pion-nucleon sigma term is 9/2 times the average current mass of light quarks, if quark confinement is linear. Considering both perturbative and non-perturbative interactions, the chiral condensate decreases monotonously with increasing densities, approaching to zero at about 4 fm^{-3}.
description: 11 pages, 1 figure, elsart style
On the problem of modeling the boat wake climate; the Florida intracoastal waterway
Creators: name: Forlini, C.
name: Qayyum, R.
name: Malej, M.
name: Lam, M. -A. Y. -H.
name: Shi, F.
name: Angelini, C.
name: Sheremet, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The impact of boat traffic on the health of coastal ecosystems is a multi-scale process: from minutes (individual wakes) to days (tidal modulation of sediment transport), to seasons and years (traffic is seasonal). A considerable numerical effort, notwithstanding the value of a boat-by-boat numerical modeling approach, is questionable, because of the practical impossibility of specifying the exact type and navigation characteristics for every boat comprising the traffic at any given time. Here, we propose a statistical-mechanics description of the traffic using a joint probability density of the wake population in some characteristic parameter space. We attempt to answer two basic questions: (1) what is the relevant parameter space and (2) how should a numerical model be tested for a wake population? We describe the linear and nonlinear characteristics of wakes observed in the Florida Intracoastal Waters. Adopting provisionally a two-dimensional parameter space (depth- and length-based Froude numbers) we conduct numerical simulations using the open-source FUNWAVE-TVD Boussinesq model. The model performance is excellent for weakly-dispersive, completely specified wakes (e.g., the analytical linear wakes), and also for the range of Froude numbers observed in the field, or for large container ships generating relatively long waves. The model is challenged by the short waves generated by small, slow boats. However, simulations suggest that the problem is confined to the deeper water domain and linear evolution. Nonlinear wake shoaling, essential for modeling wake-induced sediment transport and wake impact on the environment, is described well.
Additional file 3 of Serosurvey of Treponema pallidum infection among children with skin ulcers in the Tarangire-Manyara ecosystem, northern Tanzania
Creators: name: Lubinza, Clara K. C.
name: Lueert, Simone
name: Hallmaier-Wacker, Luisa K.
name: Ngadaya, Esther
name: Idrissa S. Chuma
name: Rudovick R. Kazwala
name: Sayoki G. M. Mfinanga
name: Failing, Klaus
name: Roos, Christian
name: Knauf, Sascha
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional File 3. (A) Population pyramidic graph of the age distribution in children that were enrolled in this study. The total number of girls (green bars) was 54 compared to 132 boys (blue bars). (B) Distribution and frequency of 196 skin ulcer locations in 186 children sampled in this study. Picture source human silhouette (modified, Pixabay [Internet]. Available from: https://pixabay.com/de/illustrations/junge-menschliche-silhouette-kinder-2676579/).
Comparing like with like: China ranks first in SCI-indexed research articles since 2018
Creators: name: Zhu, Junwen
name: Liu, Weishu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: China's rising in scientific research output is impressive. The academic community is curious about the time when the cross-over in the number of annual scientific publication production between China and the USA can happen. By using Web of Science Core Collection's Science Citation Index Expanded database, this study finds that China still ranks the second in the production of SCI-indexed publications in 2019 but may leapfrog the USA to be the first in 2020 or 2021, if all document types are considered. Comparatively, China has already overtaken the USA and been the largest SCI-indexed original research article producer since 2018. However, China still lags behind the USA regarding the number of review paper production. In general, quantitative advantage does not equal quality or impact advantage. We think that the USA will continue to be the global scientific leader for a long time.
description: Forthcoming in Scientometrics
Modelling the impact of the ‘Fast Track’ land reform policy on Zimbabwe’s maize sector
Creators: name: Kapuya, T.
name: Meyer, Ferdinand H.
name: Kirsten, Johann F.
name: Kapuya, T.
name: Meyer, Ferdinand H.
name: Kirsten, Johann F.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: Land Economics/Use
subject: ‘fast track’ land reform programme
subject: partial equilibrium model
subject: maize
subject: Zimbabwe

description: This paper attempts to analyze the impacts of the ‘fast track’ land reform policy on maize production in Zimbabwe through the construction of a partial equilibrium model that depicts what could have happened if no further policy shifts had taken place after 2000. The resimulated baseline model was used to make projections based on the various trends of exogenous variables in 2000. This means that the model generated an artificial data set based on what the maize market would have looked like under a set of the pre-2000 existent policy conditions. The ‘fast track’ land reform policy was thus assessed based on the performance of the baseline model using a range of “what if” assumptions. Commercial area harvested was 39 % less than what could have been harvested in 2001, and declining by negative 80.57 % in 2007. Results showed total maize production was 61.85 % and 43.88 % less than what could have been produced in the 2002 and 2005 droughts, respectively. This may imply that droughts would have been less severe if the ‘fast track’ land reform was not implemented. Therefore, the ‘fast track’ land reform had a negative effect on maize production. Thus, the econometric model system developed provided a basis through which the effects of the FTLRP on the maize market may be analyzed and understood.