cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Is it worth the weight? : revisiting weighted and unweighted scores with a quality of life measure
Creators: name: Russell, Lara B.
Publisher: name: University of British Columbia
Year: 2009

description: Subjective assessments of importance have been used as a weighting factor in measurement in a number of areas of research including quality of life, self esteem and job satisfaction. Despite the powerful intuitive appeal of this practice, conceptual and psychometric concerns with importance weighting have been raised, and research using weighted scores has produced mixed results. The advantages of importance weighting have therefore not been clearly established. The present study revisits importance weighting using data collected with the Injection Drug User Quality of Life Scale (IDUQOL). Weighted and unweighted IDUQOL scores from a subset of 241 participants from the Vancouver Injection Drug User Study (VIDUS) were correlated with measures of convergent and discriminant validity and a large number of criterion variables including drug use, stability of housing, involvement in drug treatment, and hospitalization. The contribution of importance ratings to scores on a global measure of life satisfaction was calculated using regression analysis. To determine whether importance ratings contributed significantly to the weighted IDUQOL total scores, analysis of variance was employed. Overall results of these analyses suggest that incorporating importance does not enhance the measurement of quality of life for this sample. However, the mean of satisfaction ratings for all important domains correlated significantly higher than the mean of satisfaction ratings for all unimportant domains with measures of convergent validity. It appears that the impact of importance depends at least in part on how it is measured and used. Further research may uncover methods for incorporating subjective importance that do increase the sensitivity of the IDUQOL and other quality of life measures.
Sociophysics Simulations II: Opinion Dynamics
Creators: name: Stauffer, Dietrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Individuals have opinions but can change them under the influence of others. The recent models of Sznajd (missionaries), of Deffuant et al. (negotiators), and of Krause and Hegselmann (opportunists) are reviewed here, while the voter and Ising models, Galam's majority rule and the Axelrod multicultural model were dealt with by other lecturers at this 8th Granada Seminar.
description: 18 pages including 9 figs., for 8th Granada seminar (AIP Conf.Proc.)
Assessing Contributions to Research reproducibility and Open Science
Creators: name: Sharan, Malvika
Publisher: name: Zenodo
Year: 2021

description: DORA Community Call: Overcoming obstacles to align research assessment with community values DORA hosted a webinar on how aligning research assessment with academic culture enables groups to overcome obstacles to change. Speakers include:
 ■ Malvika Sharan, The Turing Way Project, The Alan Turing Institute
 ■ Noémie Aubert Bonn, Faculty of Medicine and Life Sciences, Hasselt University
 ■ Laura Rovelli, Latin America Forum for Research Assessment, CLACSO
 The panel will be moderated by Helen Sitar, DORA Community Coordinator and EMBO’s Science Policy Officer. Panellists will share experiences in working with communities in Latin America, Europe and beyond who are seeking to overcome assessment challenges that currently undermine the academic culture and scientific progress. The panel will discuss indicators of success that set perverse career incentives, and alternative practices which foster open, collaborative research cultures. Participants will learn about how researchers can be recognized for all of their contributions, and how individuals can engage with initiatives that are currently building momentum for lasting change. This community call is free to attend and open to everyone interested in improving research assessment.
TCC Paulo Victor Catharino Gitsin - Musealizando hierofanias: Processos de musealização de referências culturais de experiências religiosas
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Gitsin, Paulo Victor Catharino
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: O presente trabalho aborda os processos de musealização de hierofanias, levando em conta a heterogeneidade e a multiplicidade dessas. Para tal, serão discutidos, a partir do campo da museologia, os conceitos de processos de musealização, referências culturais e hierofanias. Será analisado, em seguida, o Dossiê do Ofício de Baianas de Acarajé no intuito de compreender a diversidade das hierofanias e as possíveis relações entre essas. O trabalho visa ainda entretecer os conceitos anteriormente analisados a partir do de processo de musealização, de maneira avislumbrar perspectivas de abordagem na musealização de hierofanias.
Referência eletrônica da monografia:
GITSIN, Paulo Victor Catharino. Musealizando hierofanias: processos de musealização de referências culturais de experiências religiosas. 2016. 82p. Trabalho de Conclusão de Curso – Escola de Museologia, Universidade Federal do Estado do Rio de Janeiro. Rio de Janeiro, 2016. Orientadora: Elizabete de Castro Mendonça. Disponível em: . Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12509951
Computing Regular Meromorphic Differential Forms via Saito's Logarithmic Residues
Creators: name: Tajima, Shinichi
name: Nabeshima, Katsusuke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 32S05, 32A27

description: Logarithmic differential forms and logarithmic vector fields associated to a hypersurface with an isolated singularity are considered in the context of computational complex analysis. As applications, based on the concept of torsion differential forms due to A.G. Aleksandrov, regular meromorphic differential forms introduced by D. Barlet and M. Kersken, and Brieskorn formulae on Gauss-Manin connections are investigated. (i) A method is given to describe singular parts of regular meromorphic differential forms in terms of non-trivial logarithmic vector fields via Saito's logarithmic residues. The resulting algorithm is illustrated by using examples. (ii) A new link between Brieskorn formulae and logarithmic vector fields is discovered and an expression that rewrites Brieskorn formulae in terms of non-trivial logarithmic vector fields is presented. A new effective method is described to compute non trivial logarithmic vector fields which are suitable for the computation of Gauss-Manin connections. Some examples are given for illustration.
The Current State of Agribusiness Education and Training in Africa
Creators: name: Mabaya, Edward T.
name: Christy, Ralph D.
name: Bandama, Maureen
name: Mabaya, Edward T.
name: Christy, Ralph D.
name: Bandama, Maureen
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Teaching/Communication/Extension/Profession
subject: Capacity Building
subject: Agribusiness
subject: Agro-industries
subject: Executive Training
subject: Education

description: To spur rural development and food security, agricultural education and training in Africa has traditionally focused on increasing agricultural productivity on the farm. More recently, development practitioners and policy makers have broadened their attention to include agribusiness or agro-industries. However, the role of Agricultural Education and Training in fostering agribusiness growth in developing countries is relatively underexplored. This paper analyses the current state of agribusiness education and training in Sub-Saharan Africa. The paper is organised around five objectives. First, the paper characterises the macroeconomic environment—political, economic, social and technological—in which agribusiness development is taking place in Africa. Against this background, the implications for Agricultural Education and Training of a growing and evolving agribusiness sector are explored. With a focus on agricultural economics departments, the paper assesses the current status of agribusiness education and training offered in African academic institutions. While significant progress has been made in integrating agribusiness management into university curricula, the current offerings are far from comprehensive. Using a case study approach, new models of executive training for agribusiness being offered by non-governmental organisations, academic institutions and the private sector are benchmarked. The paper concludes by recommending strategies for developing agribusiness education and training initiatives so as to bridge the gap between current offering and industry needs.
TCC Talitha Dester - Coleções de Arte Naif: Um estudo sobre o processo de gestão das coleções do Museu Internacional de Arte Naif do Brasil
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Dester, Talitha
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: Este trabalho de Conclusão de Curso objetiva realizar uma análise sobre a gestão de coleções no Museu Internacional de Arte Naïf do Brasil, sediado no Rio de Janeiro, através da documentação museológica, apresentando paralelamente um panorama sobre a gestão do museu. Aborda cronologicamente o histórico do processo de concepção, criação e gestão da instituição e a trajetória do colecionador-fundador do museu, o parisiense Lucien Finkelstein, na atuação concomitante no ofício de joalliere no colecionismo. Têm como recorte temporal desde o início do processo de aquisição dos objetos e formação da coleção na década de 1960, passando pela musealização das coleções dentro do acervo, a abertura da instituição em 1995 e suas atividades e diferentes gestões até o fechamento do museu, em 2016. Apresenta os conceitos de coleção segundo Krzysztof Pomian; musealização, conforme Diana Farjalla Lima, Desvallées e Mairesse e documentação museológica e sistemas, a partir de Helena Dodd Ferrez e Renata Cardozo Padilha. Procura aproximar a coleção das práticas e procedimentos museológicos na conclusão da pertinência em aprofundar os estudos sobre as coleções do Museu Internacional de Arte Naïf do Brasil e seus processos e sistemas de documentação museológica.
Referência eletrônica da monografia:LIMA, Thalita Guerra Dester Queiroz. Coleções de Arte Naïf: um estudo sobre o processo de gestão das coleções do Museu Internacional de Arte Naif do Brasil. 2019. 90p. Trabalho de Conclusão de Curso – Escola de Museologia, Universidade Federal do Estado do Rio de Janeiro. Rio de Janeiro, 2019. Orientadora: Elizabete de Castro Mendonça. Disponível em: . Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12509963
Measuring Asymmetric Price and Volatility Spillover in the South African Broiler Market
Creators: name: Uchezuba, I.D.
name: Jooste, Andre
name: Willemse, Johan
name: Uchezuba, I.D.
name: Jooste, Andre
name: Willemse, Johan
Publisher: name: Unknown
Year: 2010
Subjects: Livestock Production/Industries

description: This study investigated asymmetric price and volatility spillover in the broiler value chain. The data used for the study includes farm and retail broiler monthly prices dated from January 2000 to August 2008. The threshold autoregressive (TAR) and momentum threshold autoregressive (M-TAR) models were used to investigate asymmetry in farm-retail market prices, whereas the exponential generalised autoregressive conditional heteroskedasticity (EGARCH) model was used to measure price volatility and the volatility spillover effect between retail and farm prices. Price asymmetry was found between farm and retail prices with retail prices responding more rapidly (with a lag) to negative than positive changes in farm price. The results indicate that within one month, the retail prices adjust so as to eliminate approximate 2.8 % of a unit-negative change in the deviation from the equilibrium relationship caused by changes in producer prices. This implies that the retailers must increase their marketing margin by 2.8% in order to response completely to a unit-negative change in farm prices. The results from the volatility model show that the magnitude of volatility in the retail and farm prices for the periods 2000M1 to 2008M8 is 1.8% and 2.8%, respectively, with significant asymmetric volatility spillover from the farm to retail level of the value chain. This implies that the response to positive shock at any production and marketing stage differs from the response to a negative shock.
TCC Daniela Ejzykowicz - A Musealização da Internet Art: preservação e documentação no patrimônio digital
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Ejzykowicz, Daniela
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: Esta dissertação propõe apresentar um histórico do desenvolvimento da Internet Art e sua consolidação como um fenômeno significativo da história da arte contemporânea, reconhecendo suas especificidades. É proposto também a percepção do movimento de reconhecimento deste gênero de arte pelos museus considerando também o processo de musealização de obras digitais com foco na Internet Art. É dada ênfase a aquisição, documentação e conservação destas obras com base em exemplos de ações realizadas por instituições museológicas e organizações sem fins lucrativos no âmbito da Internet Art, colocando em contraponto os pilares da museologia estabelecidos nas literatura apresentada.
Referência eletrônica da monografia:
EJZYKOWICZ, Daniela. A musealização da Internet Art: preservação e documentação no patrimônio digital. 2017. 65p. Trabalho de Conclusão de Curso – Escola de Museologia, Universidade Federal do Estado do Rio de Janeiro. Rio de Janeiro, 2017. Orientadora: Luisa Maria Gomes de Mattos Rocha. Disponível em:. Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12509930
Constraining the Unitarity Triangle with B -> V gamma
Creators: name: Bosch, Stefan W.
name: Buchalla, Gerhard
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the exclusive radiative decays $B\to K^{*}γ$, $B \toργ$, and $B\toωγ$ in QCD factorization within the Standard Model. The analysis is based on the heavy-quark limit of QCD. Our results for these decays are complete to next-to-leading order in QCD and to leading order in the heavy-quark limit. Special emphasis is placed on constraining the CKM-unitarity triangle from these observables. We propose a theoretically clean method to determine CKM parameters from the ratio of the $B\toρlν$ decay spectrum to the branching fraction of $B\toργ$. The method is based on the cancellation of soft hadronic form factors in the large energy limit, which occurs in a suitable region of phase space. The ratio of the $B\toργ$ and $B\to K^{*}γ$ branching fractions determines the side $R_{t}$ of the standard unitarity triangle with reduced hadronic uncertainties. The recent Babar bound on $B(B^0\toρ^0γ)$ implies $R_t < 0.81 (ξ/1.3)$, with the limiting uncertainty coming only from the SU(3) breaking form factor ratio $ξ$. This constraint is already getting competitive with the constraint from $B_{s}$-$\bar B_{s}$ mixing. Phenomenological implications from isospin-breaking effects are briefly discussed.
description: 23 pages, 8 figures
Budget Allocation for Rural Agricultural Development in the NWP: A Multiple Criteria Analysis
Creators: name: Van Der Merwe, J.D.
name: Cloete, Philip C.
name: Van Schalkwyk, Herman D.
name: Van Der Merwe, J.D.
name: Cloete, Philip C.
name: Van Schalkwyk, Herman D.
Publisher: name: Unknown
Year: 2010
Subjects: International Development

description: In the light of past development failures, coupled with the pressure on government to deliver on their promises made, a framework is needed to improve the success of rural agricultural development. Consequently, detailed agricultural development plans were drafted with the intent to provide a framework or roadmap that will enable small-scale farmers to be more successful over the long term. However, development plans can only improve the success of agricultural development once they are implemented. This conveys another dimension of agricultural development, with government that is often faced with strict budget constraints. Budget allocations to agricultural development initiatives should therefore be done in a way that will yield the highest economic, social and environmental returns. Such a decision can become extremely complicated when in search of optimal allocation of limited budget resources. Consequently, a decision support system that will guide budget allocation for agricultural development initiatives is sorely needed. This article provides a framework on how multiple-criteria analysis can be used as a decision support tool that will ensure optimal budget allocation for agricultural development.
Building Open Source Communities: Examples from The Turing Way
Creators: name: Sharan, Malvika
Publisher: name: Zenodo
Year: 2021

description: Reproducible Analytical Pipeline (RAP) champions network meet up: March 2021 RAP champions network has been set up to support the effective implementation of reproducible analysis across government. By promoting reproducible analysis, champions support the Government Analysis Function and enable efficiencies. A RAP meetup took place on 24 March 2021 online, that featured The Turing Way project. The Turing Way has been used in the development of a Duck Book: Quality Assurance of Code for Analysis and Research. This is an early draft of Analysis Function and Government Statistical Service (GSS) guidance. It is produced by the Best Practice and Impact division of the Office for National Statistics.
description: This talk was given by Malvika Sharan at the Reproducible Analytical Pipeline (RAP) champions on 24 March 2021.
The Turing Way: Reproducible Research and Beyond
Creators: name: Gibson, Sarah
Publisher: name: Zenodo
Year: 2021

description: Presentation on The Turing Way for the COMPUTE research school at Lund University on 2021-03-22. Website: https://compute.lu.se Course material: https://github.com/mlund/jupyter-course Abstract: Reproducible research is necessary to ensure that scientific work can be trusted. Funders and stakeholders are beginning to require that publications and research outreach include access to the underlying data and analysis code. The goal is to ensure that all results can be independently verified and built upon in future work. This is sometimes easier said than done! Sharing these research outputs means understanding data management, library sciences, software development, and continuous integration techniques. The Turing Way is a handbook to support research professionals, stakeholders, funders, students and their supervisors in ensuring that reproducible research is "too easy not to do". It includes training material on version control, analysis testing, and open and transparent communication with future users.
 Beyond just the reproducibility aspect of research, The Turing Way has expanded into a series of volumes sharing insights on building data science projects that are open, collaborative, inclusive and ethical. This project is openly developed and any and all questions, comments and recommendations are welcome at our GitHub repository: https://github.com/alan-turing-institute/the-turing-way Bio: Sarah Gibson is a Research Software Engineer at The Alan Turing Institute where she implements software best practices to translate academic research into real world solutions through the Turing's collaborative network. She is a core contributor to The Turing Way and is also an operator and maintainer for the Binder project and runs a BinderHub cluster at the Turing which receives traffic from mybinder.org. This work was supported by The UKRI Strategic Priorities Fund under the EPSRC Grant EP/T001569/1, particularly the "Tools, Practices and Systems" theme within that grant, and by The Alan Turing Institute under the EPSRC grant EP/N510129/1.
Household Food Insecurity, Rapid Food Price Inflation and the Economic Downturn
Creators: name: Jacobs, Peter T.
name: Jacobs, Peter T.
Publisher: name: Unknown
Year: 2010
Subjects: Food Security and Poverty

description: How did the upsurge in food price inflation in 2007-2009 and the 2008-2009 economic down affect experiences of household hunger according to recent Generalized Household Surveys? Findings from the 2008 round of the GHS, a large nationally representative survey conducted annually by the official statistical agency, show an unsurprising rise in household experiences of hunger in the order of 2-3 percentage points. But this merely captured the early onset of two intersecting crises, excluding the dramatic rise in job losses recorded even as the recovery got underway. An in-depth exploration of this dataset and comparing its findings to similar household cohorts for the 2006 and 2007 rounds of the GHS show that female-headed households suffered more than male-headed households. We investigate 3 determinants of household food security status: location (geography and dwelling type), main household income sources and adult equivalent expenditure patterns (including food spending) to demonstrate this result. During the year preceding the crises, spending on food increased across female-headed households reporting never, moderately and seriously hungry adults. However, the expenditure shares were falling, and this is usually perceived as a sign of rising levels of household welfare. Focusing on the first year of the crises, the complete opposite picture emerges: female-headed households substantially raised the amount of money spend on food. At the same time, the share of food expenditure in their total spending basket dramatically increased. This suggests that households were switching larger portions of their total household spending towards food- signaling a coping strategy to counter a severe livelihood shock. The policy implication is that gender-based targeting in food security policies must incorporate these additional determinants if they are to effectively and sustainably address transitory food insecurity induced by similar livelihood shocks.
South African Farmers’ Perceptions of the Benefits and Costs of Complying with EUREPGAP to Export Fresh Citrus to the European Union (EU)
Creators: name: Darroch, Mark A.G.
name: Darroch, Mark A.G.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Farm Management
subject: South African fresh citrus exports
subject: European Union
subject: perceived benefits and costs
subject: EUREPGAP compliance

description: A representative stratified random sample of 100 South African farmers from across all production regions that export fresh citrus to the EU were surveyed during 2007-2008 to document their perceptions of the benefits and costs of complying with EUREPGAP standards on citrus exports. Principal Component Analysis identified six broad dimensions of internal benefits as improved operating/technical performance; regulations compliance and intra-business benefits; gains in competitiveness; regulations compliance and new market access; benefits from existing markets; and to overcome non-tariff barriers to entry. Two further dimensions of supply chain benefits identified by PCA were improved business working relationship and product quality benefits, and improved cooperation and contractual benefits. The sampled growers thus perceive operational, technical, safety, management, monetary, marketing and supply chain benefits from certification. The major costs of implementing EUREPGAP certification related to initial investment costs and the recurrent annual costs of compliance. The respondents, on average, spent R70510 on initial compliance costs, mainly for infrastructure, additional buildings and employees training. Some 60% of respondents spent less than 1% of annual farm turnover on initial compliance costs, while most of the respondents (84%) spent less than 1% of annual farm turnover on recurrent costs of compliance. Growers that owned a pack-house had statistically significantly higher initial and annual costs of compliance. The intra- and inter-firm benefits and costs of compliance identified by these results indicate factors that policymakers, and the Citrus Growers’ Association of Southern Africa, can focus on to improve the competitiveness of SA fresh citrus exports to the EU.
Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4
Creators: name: Kang, H. J.
name: Dai, Pengcheng
name: Mook, H. A.
name: Argyriou, D. N.
name: Sikolenko, V.
name: Lynn, J. W.
name: Kurita, Y.
name: Komiya, Seiki
name: Ando, Yoichi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present comprehensive neutron scattering studies of nonsuperconducting and superconducting electron-doped Pr0.88LaCe0.12CuO4(PLCCO). At zero field, the transition from antiferromagnetic (AF) as-grown PLCCO to superconductivity without static antiferromagnetism can be achieved by annealing the sample in pure Ar at different temperatures, which also induces an epitaxial (Pr,La,Ce)2O3 phase as an impurity. When the superconductivity first appears in PLCCO, a quasi-two-dimensional (2D) spin-density-wave (SDW) order is also induced, and both coexist with the residual three-dimensional (3D) AF state. A magnetic field applied along the [-1,1,0] direction parallel to the CuO2 plane induces a ``spin-flop'' transition, where the noncollinear AF spin structure of PLCCO is transformed into a collinear one. The spin-flop transition is continuous in semiconducting PLCCO, but gradually becomes sharp with increasing doping and the appearance of superconductivity. A c-axis aligned magnetic field that suppresses the superconductivity also enhances the quasi-2D SDW order at (0.5,0.5,0) for underdoped PLCCO. However, there is no effect on the 3D AF order in either superconducting or nonsuperconducting samples. Since the same field along the [-1,1,0] direction in the CuO2 plane has no (or little) effect on the superconductivity, (0.5,0.5,0) and (Pr,La,Ce)2O3 impurity positions, we conclude that the c-axis field-induced effect is intrinsic to PLCCO and arises from the suppression of superconductivity.
description: 17 pages, 21 figures
Resource Allocation in Virtualized CoMP-NOMA HetNets: Multi-Connectivity for Joint Transmission
Creators: name: Rezvani, Sepehr
name: Mokari, Nader
name: Javan, Mohammad R.
name: Jorswieck, Eduard A.
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
subject: G.1.6
subject: 90C11

description: In this work, we design a generalized joint transmission coordinated multi-point (JT-CoMP)-non-orthogonal multiple access (NOMA) model for a virtualized multi-infrastructure network. In this model, all users benefit from multiple joint transmissions of CoMP thanks to the multi-connectivity opportunity provided by wireless network virtualization (WNV) in multi-infrastructure networks. The NOMA protocol in CoMP results in an unlimited NOMA clustering (UNC) scheme, where the order of each NOMA cluster is the maximum possible value. We show that UNC results in maximum successful interference cancellation (SIC) complexity at users. In this regard, we propose a limited NOMA clustering (LNC) scheme, where the SIC is performed to only a subset of users. We formulate the problem of joint power allocation and user association for the UNC and LNC schemes. Then, one globally and one locally optimal solution are proposed for each problem based on mixed-integer monotonic optimization and sequential programming, respectively. Numerical assessments reveal that WNV and LNC improves users sum-rate and reduces users SIC complexity by up to $35\%$ and $46\%$ compared to the non-virtualized CoMP-NOMA system and UNC model, respectively. Therefore, the proposed algorithms are suitable candidates for the implementation on open and intelligent radio access networks.
description: 54 pages, 11 figures, submitted to IEEE Transactions on Communications (TCOM)
The experience of addiction counsellors and social workers within the context of a multidisciplinary team
Creators: name: Savoy, Tracy Leigh
Publisher: name: University of British Columbia
Year: 2009

description: In British Columbia in 1997, a multidisciplinary model was implemented with the creation of a new "child centred" Ministry, the Ministry for Children and Families. After approximately five years of operating from this model, this study aimed to explore what it has been like for child protection social workers and addiction counsellors to work together. A qualitative semi-structured interview study was undertaken with 16 addiction counsellors and 16 social workers. The overall question guiding this study was: "What has been the experience of addiction counsellors and child protection social workers working within a multidisciplinary team?" Part of the experience described by participants involved ethical situations they faced in their roles, and the resulting effect on the therapeutic; alliance. The influence of the multidisciplinary model on each discipline's knowledge base and future possibilities for the model were other areas explored. A qualitative content analysis was then used to identify categories from the interview transcripts. The results yielded three major categories and eight subcategories, for the main question, depicting many parallels between the experience of these two disciplines and that of two different cultures coming together for the first time. The main categories comprised: 1. Transition Theme: Initial Contact between Two Cultures; 2. Reorientation Theme: How Can We Make This Work; 3. Adaptation Theme: Positive Aspects of Inter-Cultural Conflict and Current Status. The findings revealed intense feelings of not being validated by the host culture, some perceived benefits of the amalgamation, predominantly a negative effect on the therapeutic relationship, and doubts about the suitablity of integrating a statutory and non-statutory service. The implications strongly suggest intervention is needed at the administrative level to ensure the best utilization of financial resources, optimize service to clients and facilitate professional expertise.
Emergence of longitudinal 7-branes and fuzzy S^4 in compactification scenarios of M(atrix) theory
Creators: name: Abe, Yasuhiro
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In M(atrix) theory, there exist membranes and longitudinal 5-branes (L5-branes) as extended objects. Transverse components of these brane solutions are known to be described by fuzzy CP^k (k=1,2), where k=1 and k=2 correspond to spherical membranes and L5-branes of CP^2 \times S^1 world-volume geometry, respectively. In addition to these solutions, we here show the existence of L7-branes of CP^3 \times S^1 geometry, introducing extra potentials to the M(atrix) theory Lagrangian. As in the cases of k=1,2, the L7-branes (corresponding to k=3) also break the supersymmetries of M(atrix) theory. The extra potentials are introduced such that the energy of a static L7-brane solution becomes finite in the large N limit where N represents the matrix dimension of fuzzy CP^3. As a consequence, fluctuations from the L7-branes are suppressed, which effectively describes compactification of M(atrix) theory down to 7 dimensions. We show that one of the extra potentials can be considered as a matrix-valued 7-form. The presence of the 7-form in turn supports a possibility of Freund-Rubin type compactification. This suggests that our modification of M(atrix) theory can also lead to a physically interesting matrix model in four dimensions. In hope of such a possibility, we further consider compactification of M(atrix) theory down to fuzzy S^4 which can be defined in terms of fuzzy CP^3. Along the way, we also find a new L5-brane solution to M(atrix) theory which has purely spherical geometry in the transverse directions.
description: 24 pages; v2. current address added; v3. extensively rewritten, published version
COMPREHENSIVE ASSESSMENT OF MILD AND MODERATE TRAUMATIC BRAIN INJURY BY NEUROIMAGING AND NEUROPSYCHOLOGICAL TESTING
Creators: name: Kilichev, Nurbek
name: Abdikakhkhorov, Elnur
name: Ergashev, Mukhriddin
name: Ergashev, Dilshod
name: Kasimov, Arslanbek
Publisher: name: Zenodo
Year: 2025

description: Traumatic brain injury (TBI) remains one of the most pressing problems of modern neurology and neurosurgery, representing an important medical and social problem due to the high prevalence, significant mortality and disability of victims, mainly of young, able-bodied age. According to the World Health Organization, more than 10 million people worldwide suffer from TBI every year, with about 80% of all cases being mild to moderate injuries.
Economic effects of market and trade liberalisation on agriculture in the Western Cape Province of South Africa
Creators: name: Van Zyl, Johan
name: Townsend, Rob F.
name: Vink, Nick
name: Van Zyl, Johan
name: Townsend, Rob F.
name: Vink, Nick
Publisher: name: Unknown
Year: 1997
Subjects: subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business

description: This paper attempts to estimate the effects of some of the changes in the marketing system on the Western Cape Province of South Africa, utilizing a regional linear programming model of the agricultural sector of the region. The model includes supply, demand and production risk, and simulates the present agricultural production structure well. Market and trade liberalisation have major impacts on the structure of Western Cape agriculture, particularly the grain and livestock sub-sectors, with only marginal and mostly insignificant effects on horticultural products.
Electron Conditioning of Technical Aluminium Surfaces: Effect on the Secondary Electron Yield
Creators: name: Pimpec, F. Le
name: King, F.
name: Kirby, R. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The effect of electron conditioning on commercially aluminium alloys 1100 and 6063 were investigated. Contrary to the assumption that electron conditioning, if performed long enough, can reduce and stabilize the SEY to low values ($\leq 1.3$, value of many pure elements), the SEY of aluminium did not go lower than 1.8. In fact, it reincreases with continued electron exposure dose.
description: 36 pages, 25 figures, submitted to JVST A
Numerical computations of next-to-leading order corrections in spinfoam large-$j$ asymptotics
Creators: name: Han, Muxin
name: Huang, Zichang
name: Liu, Hongguang
name: Qu, Dongxue
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We numerically study the next-to-leading order corrections of the Lorentzian Engle-Pereira-Rovelli-Livine (EPRL) 4-simplex amplitude in the large-$j$ expansions. We perform large-$j$ expansions of Lorentzian EPRL 4-simplex amplitudes with two different types of boundary states, the coherent intertwiners and the coherent spin-network, and numerically compute the leading-order and the next-to-leading order $O(1/j)$ contributions of these amplitudes. We also study the dependences of these $O(1/j)$ corrections on the Barbero-Immirzi parameter $γ$. We show that they, as functions of $γ$, stabilize to finite real constants as $γ\to\infty$. Lastly, we obtain the quantum corrections to the Regge action because of the $O(1/j)$ contribution to the spinfoam amplitude.
description: 24 pages, 5 figures
Interplay of Strain Relaxation and Chemically Induced Diffusion Barriers: Nanostructure Formation in 2D Alloys
Creators: name: Volkmann, T.
name: Much, F.
name: Biehl, M.
name: Kotrla, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the formation of nanostructures with alternating stripes composed of bulk-immiscible adsorbates during submonolayer heteroepitaxy. We evaluate the influence of two mechanisms considered in the literature: (i) strain relaxation by alternating arrangement of the adsorbate species, and (ii) kinetic segregation due to chemically induced diffusion barriers. A model ternary system of two adsorbates with opposite misfit relative to the substrate, and symmetric binding is investigated by off-lattice as well as lattice kinetic Monte Carlo simulations. We find that neither of the mechanisms (i) or (ii) alone can account for known experimental observations. Rather, a combination of both is needed. We present an off-lattice model which allows for a qualitative reproduction of stripe patterns as well as island ramification in agreement with recent experimental observations for CoAg/Ru(0001) [R. Q. Hwang, Phys. Rev. Lett. 76, 4757 (1996)]. The quantitative dependencies of stripe width and degree of island ramification on the misfit and interaction strength between the two adsorbate types are presented. Attempts to capture essential features in a simplified lattice gas model show that a detailed incorporation of non-local effects is required.
description: 24 pages, 12 figures
Tight focal spots using azimuthally polarised light from a Fresnel cone
Creators: name: Hawley, R. D.
name: Offer, R.
name: Radwell, N.
name: Franke-Arnold, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: When focusing a light beam at high numerical aperture, the resulting electric field profile in the focal plane depends on the transverse polarisation profile, as interference between different parts of the beam needs to be taken into account. It is well known that radial polarised light produces a longitudinal polarisation component and can be focused below the conventional diffraction limit for homogeneously polarised light, and azimuthally polarised light that carries one unit of angular momentum can achieve even tighter focal spots. This is of interest for example for enhancing resolution in scanning microscopy. There are numerous ways to generate such polarisation structures, however, setups can be expensive and usually rely on birefringent components, hence prohibiting broadband operation. We have recently demonstrated a passive, low-cost technique using a simple glass cone (Fresnel cone) to generate beams with structured polarisation. We show here that the polarisation structure generated by Fresnel cones focuses better than radial polarised light at all numerical apertures. Furthermore, we investigate in detail the application of polarised light structures for two-photon microscopy. Specifically we demonstrate a method that allows us to generate the desired polarisation structure at the back aperture of the microscope by pre-compensating any detrimental phase shifts using a combination of waveplates.
The Low Input Farming Sector in Sub-Saharan Africa: Lessons and Experiences
Creators: name: Spio, Kojo
name: Spio, Kojo
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management

description: The small-scale farming sector continues to battle with the daunting task of moving from the "subsistence syndrome" to the "plane of entrepreneurship". This paper provides a review of some of the attributed factors which continue to affect the performance of the sector. Suggestions about ways to improve efficiency and to beautify the landscape of the small-scale farming sector are also made. One of the suggestions that runs through the paper is the need for the various governments of Sub-Saharan Africa to overhaul and review their agricultural policy to make it more relevant to the needs and aspirations of the small-scale farmers who constitute about 60 per cent to 70 per cent of the farming sector.
Dark defect charge dynamics in bulk chemical-vapor-deposition-grown diamonds probed via nitrogen vacancy centers
Creators: name: Lozovoi, A.
name: Daw, D.
name: Jayakumar, H.
name: Meriles, C. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Although chemical vapor deposition (CVD) is one of the preferred routes to synthetic diamond crystals, a full knowledge of the point defects produced during growth is still incomplete. Here we exploit the charge and spin properties of nitrogen-vacancy (NV) centers in type-1b CVD diamond to expose an optically and magnetically dark point defect, so far virtually unnoticed despite an abundance comparable to (if not greater than) that of substitutional nitrogen. Indirectly-detected photo-luminescence spectroscopy indicates a donor state 1.6 eV above the valence band, although the defect's microscopic structure and composition remain elusive. Our results may prove relevant to the growing set of applications that rely on CVD-grown single crystal diamond.
Study of universality crossover in the contact process
Creators: name: Dantas, W. G.
name: Stilck, J. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a generalization of the contact process stochastic model, including an additional autocatalitic process. The phase diagram of this model in the proper two-parameter space displays a line of transitions between an active and an absorbing phase which starts at the critical point of the contact process and ends at the transition point of the voter model. Thus, a crossover between the directed percolation and the compact percolation universality classes is observed at this latter point. We study this crossover by a variety of techniques. Using supercritical series expansions analyzed with partial differential approximants, we obtain precise estimates of the crossover behavior of the model. In particular, we find an estimate for the crossover exponent $ϕ=2.00 \pm 0.02$. We also show arguments that support the conjecture $ϕ=2$.
description: 19 pages, 9 figures
Corrigendum: Calibrating spectrometers for measurements of the spectral irradiance caused by solar radiation (2020 Metrologia 57 065027)
Creators: name: Schinke, Carsten
name: Pollex, Hendrik
name: Hinken, David
name: Wolf, Martin
name: Bothe, Karsten
name: Kröger, Ingo
name: Nevas, Saulius
name: Winter, Stefan
Publisher: name: Sèvres : BIPM
Year: 2022
Subjects: subject: Dewey Decimal Classification::600 | Technik

description: We correct an error in equation (60) of the original publication.
Production Incentives for Small Scale Farmers in Zimbabwe: The Case of Cotton and Maize
Creators: name: Townsend, Rob F.
name: Thirtle, Colin G.
name: Townsend, Rob F.
name: Thirtle, Colin G.
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural and Food Policy
Crop Production/Industries

description: The paper presents an empirical investigation of the production response of small scale producers of maize and cotton for communal agriculture in Zimbabwe. The error correction model, which employs the concept of cointegration to avoid spurious regressions, is used in the analysis. The factors affecting maize output were the price of maize relative to seed, the number of marketing depots established in the communal areas and the number of loans provided to these farmers. The factors affecting cotton output were the increase in communal lands due to the resettlement program, the number of loans extended to small scale farmers and the price of cotton relative to seed. The weather played the most significant role in determining the quantity of maize sold.
Probabilistic Quantum Control Via Indirect Measurement
Creators: name: Mandilara, A.
name: Clark, J. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The most basic scenario of quantum control involves the organized manipulation of pure dynamical states of the system by means of unitary transformations. Recently, Vilela Mendes and Mank'o have shown that the conditions for controllability on the state space become less restrictive if unitary control operations may be supplemented by projective measurement. The present work builds on this idea, introducing the additional element of indirect measurement to achieve a kind of remote control. The target system that is to be remotely controlled is first entangled with another identical system, called the control system. The control system is then subjected to unitary transformations plus projective measurement. As anticipated by Schrodinger, such control via entanglement is necessarily probabilistic in nature. On the other hand, under appropriate conditions the remote-control scenario offers the special advantages of robustness against decoherence and a greater repertoire of unitary transformations. Simulations carried out for a two-level system demonstrate that, with optimization of control parameters, a substantial gain in the population of reachable states can be realized.
description: 9 pages, 2 figures; typos added, reference added, reference removed
Agricultural Salinization in the Olfants River at Loskop Valley, Mpumalanga
Creators: name: Aihoon, John Komo
name: Groenewald, Jan A.
name: Von Bach, Helmke J. Sartorius
name: Aihoon, John Komo
name: Groenewald, Jan A.
name: Von Bach, Helmke J. Sartorius
Publisher: name: Unknown
Year: 1997
Subjects: Resource /Energy Economics and Policy

description: Salinization of South African rivers is serious and has rendered some dams and reservoirs unsuitable for irrigation. The contribution of agriculture to the environmental problem of salinization was empirically analysed in this study. Linear regression models demonstrated that increases in the Total Dissolved Salts (TDS) and chlorine of the Olifants River in the Loskop Valley are at least partially the result of variations in irrigation farming parameters such as fertilizer usage, rainfall and area cultivated to crops such as tobacco, cotton and wheat. The marginal rates of substitution among the independent variables can be employed in the formulation of the economically most efficient local salinization control policy. Other approaches are possible, but should be adopted only after thorough investigation.