cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efficient spin filtering through Fe$_4$GeTe$_2$-based van der Waals heterostructures
Creators: name: Davoudiniya, Masoumeh
name: Sanyal, Biplab
Publisher: name: arXiv
Year: 2025
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Utilizing ab initio simulations, we study the spin-dependent electronic transport characteristics within Fe$_4$GeTe$_2$-based van der Waals heterostructures. The electronic density of states for both free-standing and device-configured Fe$_4$GeTe$_2$ (F4GT) confirms its ferromagnetic metallic nature and reveals a weak interface interaction between F4GT and PtTe$_2$ electrodes, enabling efficient spin filtering. We observe a decrease in the magnetic anisotropy energy of F4GT in the device configuration, indicating reduced stability of magnetic moments and heightened sensitivity to external conditions. The transmission eigenstates of PtTe$_2$/ monolayer F4GT/PtTe$_2$ heterostructures demonstrate interference patterns affected by relative phases and localization, notably different in the spin-up and spin-down channels. The ballistic transport through a double-layer F4GT with a ferromagnetic configuration sandwiched between two PtTe$_2$ electrodes is predicted to exhibit an impressive spin polarization of 97$\%$ with spin-up electrons exhibiting higher transmission probability than spin-down electrons. Moreover, we investigate the spin transport properties of Fe$_4$GeTe$_2$/GaTe/Fe$_4$GeTe$_2$ van der Waals heterostructures sandwiched between PtTe$_2$ electrodes to explore their potential as magnetic tunnel junctions (MTJs) in spintronic devices. The inclusion of GaTe as a 2D semiconducting spacer between F4GT layers results in a tunnel magnetoresistance (TMR) of 487$\%$ at low bias and decreases with increasing bias voltage. In general, our findings underscore the potential of F4GT / GaTe / F4GT heterostructures to advance spintronic devices based on van der Waals materials.
description: 13 pages, 11 figures
AP - Leader - The Bottom-up Approach To Rural Development: An Irish Perspective
Creators: name: Howard, Ryan
Publisher: name: Unknown
Year: 2007
Subjects: subject: Community/Rural/Urban Development
subject: rural
subject: economy
subject: local

description: In the late 1980â€™s the European Commission led by President Jacques Delors undertook a review of the performance of the member states of the EU. This was prompted by decreasing levels of economic growth, increasing unemployment rates and social issues. There were indications that rural areas were performing particularly poorly, partly because of the decrease in employment from agriculture. Also regional and national policies had tended to focus on the development of infrastructure and services in urban areas. This was exacerbated in peripheral regions such as Ireland as growth, in a stagnant economy was limited primarily to Dublin. Thus as young people left rural areas, villages, towns and smaller cities there was limited availability of opportunity to remain part of their community. In the early 1990â€™s a range of measures were introduced to promote competitiveness in different ways across the European Union. In 1991 one such measure was introduced to specifically focus on the competitiveness and sustainability of rural areas. This was called the LEADER Programme. The principle behind this programme was to provide finance to locally formed, autonomous groups who were encouraged to invest in initiatives to bolster the local economy based on the groupâ€™s plans and strategies, formulated from local knowledge. In effect each group could prioritise and invest in sectors that they deemed to be most appropriate for their area rather than taking a more standardised regional or national approach. These Groups, known as Local Action Groups (LAGs) were allowed flexibility in how they operated as long as their investments were not seen as a duplication of what was offered by state supported bodies or other state initiatives. Innovation therefore became a central characteristic of each LAG plan. The overall focus was to use LEADER to seed a â€˜Bottom-Upâ€™ approach towards Rural Development to complement and connect with regional and national â€˜Top-Downâ€™ support measures.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - Be Good And Tell It? Re-establishment Of The Connection Between Livestock Industry And Society
Creators: name: Enting, J.
name: Van Eijk, O.N.M.
name: Mul, M.F.
name: De Jong, D.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Livestock Production/Industries
subject: animal production
subject: society
subject: communication strategies

description: The pork, poultry and dairy production chains have been of major significance for the rural areas of Western Europe. They provided food in abundance, employment and economic activities. In the last decade, however, there is an increasing awareness in society to farming. A gap has grown between animal production methods and the perceptions of society. The project BGood is looking for new ways to re-establish the connection between the livestock industry and society. These ways concentrate on communication strategies. Repairing a damaged relationship is, however, more than improving image. It is a combined action between image (to see) and identity (to be) (Birkigt & Stadler, 1986). Therefore, the communication strategies focus on changing societyâ€™s view of animal production (image) and changing the attitude of the livestock industry towards society (identity). Twenty-five interviews have been conducted to explore how people working in other, non-agricultural, industries have acted in situations to bridge a gap (e.g. church and society, politics and civilians, chemical industry and their neighbours). Surprising ideas and comments have come up: â€œPeople want to identify themselves with a person (the farmer). They canâ€™t identify themselves with the high technology systems youâ€™re always presenting.â€, or â€œStart to think of yourself as a food producer, not as an animal care taker.â€, or â€œNo visibleness means no engagement.â€ The project is now at a stage where the plurality of ideas will be used as inspirational examples in a series of meetings with people from the agricultural industries. They will form working groups that take over the ideas and put them into practice. At the IFMA-congress the process during and results of the meetings will be presented. One of the conclusions of the project so far is that the cooperation between agriculture and non-agriculture was clarifying, gave us eye-openers and was very fruitful.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
A photometric study of the field around the candidate recoiling/binary black hole SDSS J092712.65+294344.0
Creators: name: Decarli, R.
name: Reynolds, M. T.
name: Dotti, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a photometric FUV to Ks-band study of the field around quasar SDSS J092712.65+294344.0. The SDSS spectrum of this object shows various emission lines with two distinct redshifts, at z=0.699 and z=0.712. Because of this peculiar spectroscopic feature this source has been proposed as a candidate recoiling or binary black hole. A third alternative model involves two galaxies moving in the centre of a rich galaxy cluster. Here we present a study addressing the possible presence of such a rich cluster of galaxies in the SDSS J092712.65+294344.0 field. We observed the 3.6x2.6 square arcmin field in the Ks-band and matched the NIR data with the FUV and NUV images in the GALEX archive and the ugriz observations in the SDSS. From various colour-colour diagrams we were able to classify the nature of 32 sources, only 6-11 of which have colours consistent with galaxies at z~0.7. We compare these numbers with the surface density of galaxies, stars & quasars, and the expectations for typical galaxy clusters both at low and high redshift. Our study shows that the galaxy cluster scenario is in clear disagreement with the new observations.
description: 10 pages, 2 figures. Accepted for publication in MNRAS
AP - Non-adoption Of Conservation Tillage Because Of Knowledge Gaps? A Case Study From North-east Bulgaria
Creators: name: Jungklaus, Sven-Oliver
name: Happe, Kathrin
Publisher: name: Unknown
Year: 2007
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: conservation tillage
subject: technology adoption
subject: Bulgaria

description: If applied properly conservation tillage is a technology which can increase farms economic situation through reducing energy input and saving time for operations and on the other hand is beneficial for the environment and plant growing through reducing the risk of erosion and preserving soil moisture. Adoption of a conservation tillage systems not only means having the appropriate machinery (e.g. disc harrows or harrows), but also the respective abilities and knowledge of how to use the machinery to serve the farmer's objectives. Several studies have investigated the impact of human capital on technology adoption in agriculture, for example, by considering variables such as schooling, age, and contact to extension agents. However, in the decision making process a farmer's perception of characteristics of a new technology such as its relative advantage, compatibility and complexity forms the persuasion of an individual to adopt or to reject an innovation. For the most, studies on technology adoption have been carried out for developing countries and the American continent. However, up to now there has been hardly any research on the adoption of agricultural technology in transition countries. This is surprising as one could have expected changes in farmers' adoption behaviour since the start of transition. In this paper we investigate farmers' perceptions and attitudes towards the adoption and use of conservation tillage systems in North-East Bulgaria. In particular, we study whether information deficits and knowledge gaps about the use of conservation tillage systems determine the farmers' perceptions and attitudes. We base our analysis on a case study involving interviews with 35 farm managers in the region. Results suggest that knowledge gaps and information deficits determine the adequate use of conservation tillage practices. Although farms have some machinery which can be used for conservation tillage practices (e.g. harrows), results suggest that farms do so very selectively. Farms perceive the technology as being appropriate only for a limited range of crops (e.g. cereals). For all other crops (including maize) it is not considered as a proper tillage system. Farmers' attitudes towards conservation tillage appears to contradict reasons accredited to conservation tillage in literature. Approved advantages of conservation tillage, for example the preservation of soil moisture are not connected by farmers with this system and perceived to be better in the conventional tillage system.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - Global Trends And Challenges In Extension: A Farm Management Response
Creators: name: Kahan, David
Publisher: name: Unknown
Year: 2007
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Farm Management
subject: market orientaiton
subject: farm management
subject: extension

description: The paper reviews the dynamics of change in the global environment and its impact on the nature of farming in developing countries. Since farmers are working in a more competitive environment in order to increase income there is a need for their farm businesses to be profitable and adaptable to market conditions. Farmerâ€™s skills and capacity to better cope with this competitive environment need to be enhanced especially in the subject area of farm management. There is a need and challenge to broaden the technical scope of extension to better equip farmers to produce for the market. The paper discusses the response taken by FAO to meet these challenges. A strategy has been developed aimed at strengthening the capacity of extension workers and farmers by preparing and disseminating farm management training and extension materials adapted to the needs of specific countries.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Krieger und seine Schilde – drei frühmittelalterliche Bestattungen aus Bergkamen, Kreis Unna
Creators: name: Cichy, Eva
name: Lehmann, Ulrich
Publisher: name: Ausgrabungen und Funde in Westfalen-Lippe
Year: 2023

description: .
description: Ausgrabungen und Funde in Westfalen-Lippe, Ausgrabungen und Funde in Westfalen-Lippe 16 (2022/2023)
Let AI Read First: Enhancing Reading Abilities for Individuals with Dyslexia through Artificial Intelligence
Creators: name: Zhao, Sihang
name: Xiong, Shoucong Carol
name: Pang, Bo
name: Tang, Xiaoying
name: He, Pinjia
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Dyslexia, a neurological condition affecting approximately 12% of the global population, presents significant challenges to reading ability and quality of life. Existing assistive technologies are limited by factors such as unsuitability for quiet environments, high costs, and the risk of distorting meaning or failing to provide real-time support. To address these issues, we introduce LARF (Let AI Read First), the first strategy that employs large language models to annotate text and enhance readability while preserving the original content. We evaluated LARF in a large-scale between-subjects experiment, involving 150 participants with dyslexia. The results show that LARF significantly improves reading performance and experience for individuals with dyslexia. Results also prove that LARF is particularly helpful for participants with more severe reading difficulties. Furthermore, this work discusses potential research directions opened up by LARF for the HCI community.
description: 6 pages, 3 figures CHI 2025 (Late Breaking Work)
AP - The Effect Of Soil Conservation On Optimal Cropping Patterns In Kericho District, Kenya
Creators: name: Kipsat, M.J.
name: Maritim, H.K.
name: Korir, M.K.
name: Serem, A.K.
name: Nyangweso, P.M.
name: Okalebo, J.R. Kisinyo
name: Oyasi, S.S.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: goal-programming
subject: optimal cropping patterns
subject: soil conservation

description: Production and consumption activities are directed by multiple and conflicting goals. The objective of this study was to determine the changes in optimal resource utilization patterns arising from soil conservation. A purposive sample of 150 farmers was selected from three administrative divisions of Kericho district. Questionnaires were used to collect primary data needed for analysis. Pre-emptive goal-programming model was used to determine the optimal cropping patterns. Results showed that out of 20 basic cropping activities identified in the study area, 20% and 10% entered the optimal cropping program in conserved and eroded areas respectively. Shadow prices for fully utilized resources indicated that cost of production decreased if additional units of the fully utilized resources were used. The non-fully utilized resources included land and hired labor. In conclusion, it was evident that given the present structure of available resources, average households in study area could not fully meet their household goals.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - Effects Of Automatic Milking And Conventional Milking On The Profitability Of Dutch Dairy Farms
Creators: name: Kooistral, Sake R.
name: Bijl, Ronald
name: Hogeveen, Henk
Publisher: name: Unknown
Year: 2007
Subjects: subject: Industrial Organization
subject: Labor and Human Capital
subject: automatic milking
subject: labour productivity
subject: economics

description: The objective of this study was to analyze the profitability of dairy farms using an automatic milking system (AMS) compared with a conventional milking system (CMS) based on real accounting data. In total, 62 farms (31 AMS and 31 CMS) were analyzed for the year 2003, using a case control study. Results of 2003 showed that AMS farms used on average 29% less labor and had â‚¬ 7,899 lower revenues. CMS farms had â‚¬ 15,566 more available for rent, depreciation, interest, labour and profit (RDILP) than AMS farms. AMS farms had greater revenues, margin, and gross margin per full time employee, resulting in a substantial (but not statistical significant) greater RDILP per full time employee. Costs for depreciation and interest were larger for AMS farms than for CMS farms. Therefore, farm managers should consider the extra time acquired by automatic milking against extra costs associated with an AMS.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Synchronous Quantum Memories with Time-symmetric Pulses
Creators: name: He, Q. Y.
name: Reid, M. D.
name: Drummond, P. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a dynamical approach to quantum memories using a synchronous oscillator-cavity model, in which the coupling is shaped in time to provide the optimum interface to a symmetric input pulse. This overcomes the known difficulties of achieving high quantum input-output fidelity with storage times long compared to the input signal duration. Our generic model is applicable to any linear storage medium ranging from a superconducting device to an atomic medium. We show that with temporal modulation of coupling and/or detuning, it is possible to mode-match to time-symmetric pulses that have identical pulse shapes on input and output.
description: 4 pages, 4 figures
Control of the pasture scarab Adoryphorus couloni with Metarhizium anisopliae
Creators: name: Rath, Andrew Charles
Publisher: name: University Of Tasmania
Year: 2023

description: The redheaded cockchafer, Adoryphorus couloni, is a serious pasture pest of south-eastern Australia. No chemical insecticides are registered for use against A. couloni. Investigations into the biological control of this pest using the fungus Metarhizium anisopliae, covered three main areas. The first of these were laboratory studies on the affect of both spore concentration and temperature on the virulence of the fungus. Secondly, field experiments were established to determine the short-term and long-term biocontrol. Finally, an environmental study examined the influence of abiotic factors on the distribution and abundance of the natural M. anisopliae flora in pasture soils.
AGRIGEP 1st Press release
Creators: name: AGRIGEP Project
Publisher: name: Zenodo
Year: 2023
Subjects: genderequality
women
researcher
universities
widening countires
agriculture
lifescience
kickoffmeeting
launchednewproject

description: This press release is about the newly launched Horizon Europe project AGRIGEP that started at the beginningof 2023 year.
AP - Dairy Farmersâ€™ Plans In Central Europe Under New EU Policies
Creators: name: Kuipers, Abele
name: Klopcic, Marija
Publisher: name: Unknown
Year: 2007
Subjects: subject: Industrial Organization
subject: Farm Management
subject: dairy farming
subject: planning
subject: choices

description: After accession to EU, farmers in the new-member states need to adjust to the EU agricultural policies. A review is presented of county reports from the Central and Eastern European countries. As case study of small scale farming an analysis is made of plans and extension aspects of farm development in Slovenia. As tool a questionnaire was distributed to dairy farmers: 1114 have been returned anonymously, representing 10 % of the dairy farmersâ€™ population. Strategies and their interest in technical knowledge are analysed in relation to base parameters, like age of farmer, size of farm, less favoured area or not, etc. Results show a significant demand for info about EU premium programs, a considerable activity in farm planning of which 64% of farmers opt for specialisation and 54 % also for forms of diversification. Opportunities for special regional products will be discussed. A comparison of results can be made with some data in The Netherlands.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Influence of shear stress applied during flow stoppage and rest period on the mechanical properties of thixotropic suspensions
Creators: name: Ovarlez, Guillaume
name: Chateau, Xavier
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We study the solid mechanical properties of several thixotropic suspensions as a function of the shear stress history applied during their flow stoppage and their aging in their solid state. We show that their elastic modulus and yield stress depend strongly on the shear stress applied during their solid-liquid transition (i.e., during flow stoppage) while applying the same stress only before or only after this transition may induce only second-order effects: there is negligible dependence of the mechanical properties on the preshear history and on the shear stress applied at rest. We also found that the suspensions age with a structuration rate that hardly depends on the stress history. We propose a physical sketch based on the freezing of a microstructure whose anisotropy depends on the stress applied during the liquid-solid transition to explain why the mechanical properties depend strongly on this stress. This sketch points out the role of the internal forces in the colloidal suspensions' behavior. We finally discuss briefly the macroscopic consequences of this phenomenon and show the importance of using a controlled-stress rheometer.
AP - Persistence In Financial Performance
Creators: name: Langemeier, Michael
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural Finance
subject: profit margin
subject: asset turnover
subject: expense ratio

description: The purpose of this paper was to examine the persistence of financial efficiency and performance measures for a sample of farms. The profit margin ratio, the asset turnover ratio, and three expense ratios were computed for each farm and year, and for the four-year period. The number of years each farm was in the top and bottom performance quartile was also computed. Results indicated that it was relatively difficult for a farm to consistently be in the top quartile over time. However, using four-year average data, there was a substantial difference in financial performance between farms in the top and bottom quartiles. Results suggest that using one year of data to benchmark is problematic. However, benchmarking using data for a longer period of time is essential to determining a farmâ€™s competitive position.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Law of the exponential functional of one-sided Lévy processes and Asian options
Creators: name: Patie, Pierre
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60G51, 33C15, 91B28

description: The purpose of this note is to describe, in terms of a power series, the distribution function of the exponential functional, taken at some independent exponential time, of a spectrally negative Lévy process ξwith unbounded variation. We also derive a Geman-Yor type formula for Asian options prices in a financial market driven by e^ξ.
The invariant Twist of Magnetic Fields in the Relativistic Jets of Active Galactic Nuclei
Creators: name: Contopoulos, Ioannis
name: Christodoulou, Dimitris M.
name: Kazanas, Demosthenes
name: Gabuzda, Denise C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The origin of cosmic magnetic (B) fields remains an open question. It is generally believed that very weak primordial B fields are amplified by dynamo processes, but it appears unlikely that the amplification proceeds fast enough to account for the fields presently observed in galaxies and galaxy clusters. In an alternative scenario, cosmic B fields are generated near the inner edges of accretion disks in Active Galactic Nuclei (AGNs) by azimuthal electric currents due to the difference between the plasma electron and ion velocities that arises when the electrons are retarded by interactions with photons. While dynamo processes show no preference for the polarity of the (presumably random) seed field that they amplify, this alternative mechanism uniquely relates the polarity of the poloidal B field to the angular velocity of the accretion disk, resulting in a unique direction for the toroidal B field induced by disk rotation. Observations of the toroidal fields of 29 AGN jets revealed by parsec-scale Faraday rotation measurements show a clear asymmetry that is consistent with this model, with the probability that this asymmetry came about by chance being less than 1%. This lends support to the hypothesis that the Universe is seeded by B fields that are generated in AGN via this mechanism and subsequently injected into intergalactic space by the jet outflows.
description: Accepted for publication in the Astrophysical Journal Letters
AP - Challenges Facing Agriculture Today Meta Analysis Of Expert Interviews
Creators: name: Loree, J. Wilson
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: challenges
subject: opportunities
subject: trends

description: Identification of the major trends that will impact on the agriculture operating environment in the next five to ten years was the first topic addressed in over 20 interviews with recognized experts from the USA, Australia, New Zealand, the United Kingdom, and Canada. They also identified the major challenges and opportunities that those trends created for farm operations, what skills and information could be of assistance to farm managers, and successful methods of delivery. Challenges and opportunities identified are: new crops and products, changing thinking to a market focus, using new technology, using appropriate business models, alliances & networks, succession strategies, benefiting from interdependence, and increased market volatility. Meeting these challenges and opportunities will require development of specific skills and sources of information. Delivery options included electronic means, but the importance of interaction between people was confirmed.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - Livestock-based Livelihoods: Commercialising Livestock Production Under Communal Land Use Systems
Creators: name: Maine, Ntsikane
Publisher: name: Unknown
Year: 2007
Subjects: subject: Livestock Production/Industries
subject: Land Economics/Use
subject: Livelihoods
subject: communal land-use systems
subject: livestock

description: South African agriculture has a dualistic economy: the first economy comprising of large commercial farmers, and the second economy composed of small subsistence and developing farmers. Supporting the second economy is a major need and priority in South Africa. In Limpopo Province, Blouberg Local Municipality has been identified as a nodal area where livestock farmers need to be supported for the production of livestock. The focus is on the development of the livestock production sector, concentrating on communal lands. In this paper, strategies that can be used to transform farmers in communal land use systems from subsistence livestock production into viable systems of production and marketing livestock through formal markets are evaluated using Agricultural Research for Development (ARD), a holistic approach to collective rural innovation and development. The findings of this study indicate that involvement of all stakeholders in formulating development interventions can lead to sustainable development and strengthening of inter-organisational linkages.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - Sustainable Farmer Settlement In South Africa
Creators: name: Mokhatla, Petso
name: Maine, Ntsikane
name: Nell, Wim T.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Land Economics/Use
subject: land reform
subject: paradigm shift
subject: land redistribution

description: Land reform is a burning issue in most developing countries; The South African government also embarked on the programme of land reform in 1994. This programme is aimed at redressing the imbalance in land ownership and bringing previously disadvantaged individuals to participate in the mainstream economy. However, current studies indicate that little has been achieved since the inception of the programme. Most of the set objectives for the programme are yet to be realised, indicating that South Africa requires a paradigm shift on its policies regarding land reform to make a meaningful contribution to equitable land redistribution and realisation of sustainable production. A review on the land reform programme that focuses not only on establishing post-settlement support structures, but also prior planning on pre-settlement, to encourage entrepreneurship amongst the programme beneficiaries, is paramount. This paper analyses the current settlement programme and provides recommendations for successful and sustainable farmer settlement in South Africa.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Glass-like Thermal-Transport in Symmetry-Broken Clathrates
Creators: name: Kaneshita, Eiji
name: Nakayama, Tsuneyoshi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present the quantitative interpretation for the glass-like behavior of thermal conductivities $κ(T)$ for type-I clathrate compounds involving off-centered guest ions. It is shown that the dipole-dipole interaction generated in cage/guest-ion systems is crucial to reproduce the characteristics of thermal conductivities for these symmetry-broken clathrates. The above scenario also explains well the difference of $κ(T)$ between the $p$-type and the $n$-type $β$-BGS found recently by K. Suekuni et al. [Phys. Rev. B, 77 (2008) 235119.]
AP - Restraining The Urge To Enlighten Students In Order To Challenge Them To Discover And Learn
Creators: name: Morgan, Christopher K.
name: Morgan, Rosemary W.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: Teaching/Communication/Extension/Profession
subject: farm management education
subject: student tours
subject: constructivism

description: This paper looks at the link between what educators understand about learning and the putting of that knowledge into practice when designing learning experiences for their students. The focus of the paper is the structuring and execution of a farm tour for farm management students to achieve higher order learning outcomes. The design involves focussing student attention by embedding the student assessment process entirely within the tour itinerary. More provocatively, it involves teaching staff and farmer cooperators initially restricting their responses to aspects of student questioning in order to help rouse students to sharpen their observational abilities and skilfully share and draw on their own collective prior learning and knowledge.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - New Zealand Governmentâ€™s Involvement In Agriculture â€“ The Road To Non-sustainability
Creators: name: Gow, Neil G.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural and Food Policy
subject: New Zealand
subject: non-sustainable
subject: bureaucracy

description: Why did a small urban based population think it could subsidise itâ€™s dominantly export agriculture? What pre 1984 policies, created a non sustainable, subsidised New Zealand agriculture where increased output was worth less than the cost? The election of a Labour Government by an urban based population, World War II, introduction of modern agricultural technology and a commodity boom lead to policies aimed at increasing agricultural exports to fund the imports required by an expanding, protected manufacturing sector. These resulted in a burgeoning bureaucracy and an increasingly uncompetitive economy. Specific problems were fixed on an ad hoc basis but the watershed was the UK joining the EEC and NZâ€™s loss of a guaranteed market. The policy response was to encourage farm production with a complex suite of measures, without regard to international competitiveness. This paper outlines the economic and agricultural policy context that lead to the radical surgery of 1984.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Collapse of Non-Axisymmetric Cavities
Creators: name: Enriquez, Oscar R.
name: Peters, Ivo R.
name: Gekle, Stephan
name: Schmidt, Laura
name: Versluis, Michel
name: van der Meer, Devaraj
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A round disk with a harmonic disturbance impacts on a water surface and creates a non-axisymmetric cavity which collapses under the influence of hydrostatic pressure. We use disks deformed with mode m=2 to m=6. For all mode numbers we find clear evidence for a phase inversion of the cavity wall during the collapse. We present a fluid dynamics video showing high speed imaging of different modes, pointing out the characteristic features during collapse.
Piagetian conceptualization of the visuo-spatial aspacts of reading
Creators: name: Ternes, Joyce Lynne Buhr
Publisher: name: University of British Columbia
Year: 2011

description: Piagetian spatial theory was used to analyse the structures underlying reading at the identification level. A set of eight Piagetian Tasks, derived from this analysis, was inter-correlated with eight Reading Tasks and the Peabody Picture Vocabulary Test. This battery of tests was administered individually to 60 Grade Two children. The pattern of correlation between the Reading and Piagetian Tasks indicates that the Piagetian spatial structures underlie successful reading performance. Performance on the individual items in the Piagetian Tasks followed the rank order predicted from a conceptual analysis of the complexity of the Piagetian structures underlying individual items within a task. A Stage Analysis, to determine the developmental level of each child across Piagetian Tasks, confirmed the Correlational Analysis in that no child who was in Piagetian Stage II was a good reader.
An investigation into the conceptualisation of electronic communications by youth across different socio-economic groupings in the Launceston region
Creators: name: Rawlings, Brigid
Publisher: name: University Of Tasmania
Year: 2023

description: The ubiquitous nature of electronic communication technology has enabled Australian youth to readily adopt such communication devices as mobile phones and the Internet. Relatively little research has been conducted into the ways in which these youth use this technology, and more specifically how this technology has framed their social perceptions. This research seeks to explore the impact of this technological usage has upon the social structures and interaction style of regional Australian youth. A series of four focus groups, selected from a range of socio economic backgrounds from a regional city in Tasmania, have been analysed qualitatively in order to gain insight into the participants' perceptions regarding electronic communications. The results surprisingly indicate a disparity across the socio economic groupings, and a sense that the socially constructive worlds in which these youth exist, varies noticeably from that which is characterised in the mass media, and is commonly understood by later generations. The implications of this research will impact upon the decision and policy makers, for controllers of mass communication and for provides of communication services.
Embedding Theorems for Müntz spaces
Creators: name: Chalendar, Isabelle
name: Fricain, Emmanuel
name: Timotin, Dan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46E15, 47A30, 47B33

description: We discuss boundedness and compactness properties of the embedding $M_Λ^1\subset L^1(μ)$, where $M_Λ^1$ is the closure of the monomials $x^{λ_n}$ in $L1([0,1])$ and $μ$ is a finite positive Borel measure on the interval $[0,1]$. In particular, we introduce a class of "sublinear" measures and provide a rather complete solution of the embedding problem for the class of quasilacunary sequences $Λ$. Finally, we show how one can recapture some of Al Alam's results on boundedness and essential norm of weighted composition operators from $M_Λ^1$ to $L1([0,1])$.
description: 21 pages
AP - How The World's Leading Farmers Are Responding To Global Changes -a Consultant's Review
Creators: name: Napier, Rob
name: Nell, Wim T.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: Agribusiness
subject: drivers of change
subject: management systems

description: Agribusiness systems (from â€˜farm to forkâ€™) are undergoing enormous changes. This paper first considers the major drivers of change and their dramatic impacts on farmers and farm management systems. Drawing on the authorsâ€™ experiences working with farmers around the world the paper then considers nine major areas where leading farmers are focusing as they seize the opportunities from the changes .These are: planning (strategic and operational); environmental management; new technologies; co-operation; developing a market-driven focus; business growth; risk management; off-farm businesses and managing people. Examples of successful strategies are given for each of the management areas drawing on case studies from a number of countries. The paper concludes with a check list that managers and their advisers can use to assess how well a farm business has prepared for success in the new world of agribusiness.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
AP - Cow-alition, From Solo To Strategic Alliance Networks Have More Innovative Potential Than Individuals
Creators: name: Nauta, W.E.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Farm Management
subject: network
subject: cooperation
subject: social skills

description: In the Netherlands a network program is active. Groups of farmers are stimulated to work together with researchers to achieve certain goals. I will address in my contribution questions, like what is a network, how does a network emerge and how can a successful network be pointed out? As case I will discuss the network I am involved in. This is called â€œCow-alitionâ€, because we work together with other farmers to try to realise a â€œrich lifeâ€ by combining labour, buildings, land and machines to operate efficiently and spread the risks. Such a coalition needs knowledge and tools in technical, economical and management fields, but most of all social skills. Questions that will be addressed are how to measure if persons can work together, how to manage such a type of coalition and what are the threats and opportunities?
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
Complexity of D-dimensional hydrogenic systems in position and momentum spaces
Creators: name: Lopez-Rosa, S.
name: Manzano, D.
name: Dehesa, J. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The internal disorder of a D-dimensional hydrogenic system, which is strongly associated to the non-uniformity of the quantum-mechanical density of its physical states, is investigated by means of the shape complexity in the two reciprocal spaces. This quantity, which is the product of the disequilibrium or averaging density and the Shannon entropic power, is mathematically expressed for both ground and excited stationary states in terms of certain entropic functionals of Laguerre and Gegenbauer (or ultraspherical) polynomials. We emphasize the ground and circular states, where the complexity is explicitly calculated and discussed by means of the quantum numbers and dimensionality. Finally, the position and momentum shape complexities are numerically discussed for various physical states and dimensionalities, and the dimensional and Rydberg energy limits as well as their associated uncertainty products are explicitly given. As a byproduct, it is shown that the shape complexity of the system in a stationary state does not depend on the strength of the Coulomb potential involved.
description: 14 pages, 3 figures, accepted in Physica A
AP - A New Approach In Farm Business Analysis To Fit A Changing Farmland Investment Market
Creators: name: Oltmans, Arnold W.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: farmland
subject: cost analysis
subject: cash rent

description: Increasing non-farm demand for land in developed countries is changing the farmland market and the business dynamics of owning it. Farmlandâ€™s value is now based less on the economic value of farm products it can produce and more on the non-farm characteristics and uses it can provide. This change has implications for farm business management decisions leading to the need for a new approach to the economic analysis of the farm business. This new approach calls for treating farmland as part of an investment portfolio, profit centre, rather than as a production cost input. This changes the traditional approach to cost budgeting and analysis of farm enterprises. Managers need to view the land ownership decision more as an investor in the land than as a producer on the land. This may have implications for developing countries in the future as well.
description: Sixteenth International Farm Management Congress, University College Cork, Ireland, July 15-20, 2007
CP-violation parameters from decay rates of $B^\pm \to D K^\pm$, $D\to$ multibody final states
Creators: name: Soffer, Abner
name: Toki, Walter
name: Winklmeier, Frank
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe a method for measuring CP-violation parameters from which the Cabibbo-Kobayashi-Maskawa angle $γ$ may be extracted. The method makes use of the total decay rates in $B^\pm \to DK^\pm$ decays, where the neutral $D$ meson decays to multibody final states. We analyze the error of the method using experimental CP-violation analysis variables that enable straightforward sensitivity comparison with other methods for extracting $γ$, and discuss the use of $B$-factory and charm-factory data to obtain the relevant charm decay information needed for this measurement. Measurement sensitivities are estimated for the currently available $B$-factory data sample, and $D$ decay modes for which use of this method can make a significant contribution toward reducing the total error on $γ$ are identified.
description: 9 pages, 2 figures, submitted to Phys. Rev. D
Gravitational-wave confusion background from cosmological compact binaries: Implications for future terrestrial detectors
Creators: name: Regimbau, Tania
name: Hughes, Scott A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Increasing the sensitivity of a gravitational-wave (GW) detector improves our ability to measure the characteristics of detected sources. It also increases the number of weak signals that contribute to the data. Because GW detectors have nearly all-sky sensitivity, they can be subject to a confusion limit: Many sources which cannot be distinguished may be measured simultaneously, defining a stochastic noise floor to the sensitivity. For GW detectors operating at present and for their planned upgrades, the projected event rate is sufficiently low that we are far from the confusion-limited regime. However, some detectors currently under discussion may have large enough reach to binary inspiral that they enter the confusion-limited regime. In this paper, we examine the binary inspiral confusion limit for terrestrial detectors. We consider a broad range of inspiral rates in the literature, several planned advanced gravitational-wave detectors, and the highly advanced "Einstein Telescope" design. Though most advanced detectors will not be impacted by this limit, the Einstein Telescope with a very low frequency "seismic wall" may be subject to confusion noise. At a minimum, careful data analysis will be require to separate signals which will appear confused. This result should be borne in mind when designing highly advanced future instruments.
description: 19 pages, 6 figures and 3 tables; accepted for publication in Phys. Rev. D