cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interactive Visualization in the Cloud: Browser-based Visualization in JupyterLab with ParaView trame for HPC Use-cases
Creators: name: Windgassen, Jonathan
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: Bachelorarbeit, Fachhochschule Aachen, 2023; 58p. (2023). = Bachelorarbeit, Fachhochschule Aachen, 2023
description: In this work, we present JuViz, a novel approach to browser-based interactive visualization. It bridges the cloud-based development environment JupyterLab with the visualization framework ParaView. With JuViz, users of the high performance computing (HPC) systems can access flexible visualization apps in the browser. It relies on the framework trame and is a part of the cloud platform JupyterJSC. Apps utilize ParaView as the visualization framework for remote rendering of the data on the HPC system. JuViz allows adding customized apps, which can be developed for certain communities or purposes. This empowers users to create web apps, tailored to their specific needs and requirements. It enables the comfortable, easily accessible, intuitive and flexible visualization of large data, an essential aspect to find wide adoption within the scientific community and be integrated into visualization workflows.The setup is demonstrated by the development of the trame ESM-Slicer — a trame app for the Earth System Modelling community — which is capable of visualizing atmospheric and climate data. It is utilized to assess the strength and limits of trame and provide insight into the development process of apps made for JuViz.
Near-optimal performance of stochastic economic MPC
Creators: name: Schießl, Jonas
name: Ou, Ruchuan
name: Faulwasser, Timm
name: Baumann, Michael H.
name: Grüne, Lars
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper presents first results for near optimality in expectation of the closed-loop solutions for stochastic economic MPC. The approach relies on a recently developed turnpike property for stochastic optimal control problems at an optimal stationary process, combined with techniques for analyzing time-varying economic MPC schemes. We obtain near optimality in finite time as well as overtaking and average near optimality on infinite time horizons.
Daniele Bruzzone, Emotional Life: Phenomenology, Education and Care, “Phänomenologische Erziehungswissenschaft” vol. 14, Springer VS, Wiesbaden, ISBN: 978-3-658-42547-0, XII-84 pages, 2023
Creators: name: Brinkmann, Malte
Publisher: name: Encyclopaideia
Year: 2023

description: Encyclopaideia, Vol. 27 No. 67 (2023)
PR - AN EXAMINATION OF THE RELATIONSHIP BETWEEN CASH RENT AND NET RETURN TO LAND IN INDIANA
Creators: name: Langemeier, Michael
name: Carson, Nathan
Publisher: name: Unknown
Year: 2017
Subjects: Land Economics/Use

description: This paper examined the relationship between cash rent and net return to land for Indiana. There was a significant and positive relationship between cash rent and net return to land for medium and high productivity land. The relatively low coefficients on lagged net return to land in the cash rent equations reinforce the existing literature that asserts that cash rent values are sticky. As a result, the recent decline in the net return to land in Indiana will not be fully realized for several years.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
On the Metal-Richness of M Dwarfs with Planets
Creators: name: Johnson, John A.
name: Apps, Kevin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Knowledge of the metallicities of M dwarfs rests predominantly on the photometric calibration of Bonfils and collaborators, which predicts that M dwarfs in the solar neighborhood, including those with known planets, are systematically metal-poor compared to their higher-mass counterparts. We test this prediction using a volume-limited sample of low-mass stars, together with a subset of M dwarfs with high-metallicity, F, G amd K wide binary companions. We find that the Bonfils et al. photometric calibration systematically underestimates the metallicities of our high-metallicity M dwarfs by an average of 0.32 dex. We derive a new photometric metallicity calibration and show that M dwarfs with planets appear to be systematically metal-rich, a result that is consistent with the metallicity distribution of FGK dwarfs with planets.
description: ApJ Accepted (April 19, 2009). 4 pages, 4 figures, 2 tables. Version 2 fixes an error in the order of the text. The last two paragraphs of Section 2.1 are moved to their correct location at the end of Section 3. Removed mention of dashed line in Figure 4 caption
Towards an effective, needle-based delivery device for Parkinson's disease: a simulation study on the impact of needle diameter
Creators: name: Syntouka, Ioanna Marina
name: Riches, Philip
name: Busby, Grahame
name: Kazakidi, Asimina
Publisher: name: Zenodo
Year: 2018

description: Recently, several therapies have emerged for Parkinson’s disease, a challenging neurodegenerative disorder. However, clinical translation is restricted, partially due to limitations in delivering therapeutics to the Central Nervous System (CNS)which cannot be reached by systemic administration. An alternative method, that bypasses the blood brain barrier and offers high-concentrated deposition in the diseased region, is intrastriatal delivery of a cell-loaded in situ forming collagen hydrogel. However, this strategy has disadvantages, including neuroimmune response and haemorrhage. To minimize these responses, an optimised medical device should be designed. Of main consideration is the volume dispensed and the needle dimensions. Current approaches use 18-20-Gaugediameter needles and multiple cranial penetrations. Additionally, fluid forces acting on cells may lead to cell disruption and death. This study aims to develop a novel device for the effective delivery of a cell-loaded in situ forming collagen hydrogel to the CNS. A simulation study on constricted channels representing the needle was performed to gain insight into the optimal needle diameter.
PR - ASSESSING THE ECONOMIC IMPACT OF LIVESTOCK THEFT IN THE EASTERN CAPE PROVINCE OF SOUTH AFRICA
Creators: name: Lombard, W.A.
name: Van Niekerk, H.N.
name: MarÃ©, F.A.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Livestock Production/Industries
subject: Livestock theft
subject: Direct cost
subject: Indirect cost

description: All the provinces in South Africa are affected by livestock theft and this threatens the profitability and sustainability of livestock farmers. Animal products comprised 49% of the total gross value of South Africaâ€™s agricultural products in 2014/15. In 2014, livestock losses amounted to approximately R509 million and the main concern is that official statistics are underestimated. While available literature has investigated the direct costs of stock theft, no scientific investigation has focused on the indirect cost of stock theft. To ascertain the true financial impact of livestock theft, both the direct and indirect costs are required. The primary objective of this study is to determine the financial impact of livestock theft in the Eastern Cape Province. In order to achieve this, the direct cost of livestock theft (value of the livestock lost), as well as the indirect cost of livestock theft (the financial impact of loss-controlling practices), will be investigated. The total annual cost of livestock theft in the Eastern Cape Province according to the data, was calculated at R196 167 623. This value emphasizes the importance of livestock theft control in the Eastern Cape.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Forcing mass transfer approach in multicomponent miscible mixtures using the lattice Boltzmann method
Creators: name: Lourenço, R. G. C.
name: Constantino, P. H.
name: Tavares, F. W.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: While the lattice Boltzmann method (LBM) has proven robust in areas like general fluid dynamics, heat transfer, and multiphase modeling, its application to mass transfer has been limited. Current modeling strategies often oversimplify the complexities required for accurate and realistic mass transfer simulations in multicomponent miscible mixtures involving external forces. We propose a forcing approach within the explicit velocity-difference LBM framework to address these limitations. Our approach recovers the macroscopic mass conservation equations, the Navier-Stokes equation with external forcing term, and the full Maxwell-Stefan equation for ideal mixtures at low Knudsen numbers. A novel boundary scheme for impermeable solid walls is also suggested to ensure proper mass conservation while effectively managing the spatial interpolations required for multicomponent mixtures with varying molecular masses. We demonstrated the physical consistency and accuracy of the proposed forcing approach through simulations of the ultracentrifuge separation of uranium isotopes and the Loschmidt tube with gravitational effects. Our approach encompasses advanced modeling of species dynamics influenced by force fields, such as those encountered in geological CO$_2$ sequestration in aquifers and oil reservoirs under gravitational fields.
Energy dependence of J/psi absorption in proton-nucleus collisions
Creators: name: Lourenco, Carlos
name: Vogt, Ramona
name: Woehri, Hermine K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Charmonium states are expected to be considerably suppressed in the case of quark-gluon plasma formation in high-energy heavy-ion collisions. However, a robust identification of suppression patterns as signatures of a deconfined QCD medium requires a detailed understanding of the "normal nuclear absorption" already present in proton-nucleus collisions, where the charmonium production cross sections increase less than linearly with the number of target nucleons. We analyse the J/psi production cross sections measured in proton-nucleus collisions in fixed target experiments, with proton beam energies from 200 to 920 GeV, and in d-Au collisions at RHIC, at sqrt(s)=200 GeV, in the framework of the Glauber formalism, using several sets of parton distributions with and without nuclear modifications. The results reveal a significant dependence of the "absorption cross section" on the kinematics of the J/psi and on the collision energy. Extrapolating the observed patterns we derive the level of absorption expected at Elab=158 GeV, the energy at which the heavy-ion data sets were collected at the CERN SPS.
description: 23 pages, 11 figures, 7 tables
Miloš Crnjanski. Romanzo di Londra
Creators: name: Davanzo, Enrico
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2021

description:
Review of Crnjanski, M. (2019). Romanzo di Londra. Trad. di A. Andolfo. Mimesis: Sesto San Giovanni, 907 pp.

description: Annali di Ca’ Foscari. Serie occidentale
Olaf Müller, Elena Polledri (a cura di). Theateradaptionen
Creators: name: Zenobi, Luca
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2021

description:
Review of Müller, O.; Polledri, E. (Hrsgg) (2021). Theateradaptionen. Interkulturelle Transformationen moderner Bühnentexte. Heidelberg: Winter Universitätsverlag, 257 pp.

description: Annali di Ca’ Foscari. Serie occidentale
Vladimir Nabokov. Lezioni di letteratura russa
Creators: name: Vanon Alliata, Michela
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2021

description:
Review of Nabokov, V. (2021). Lezioni di letteratura russa. A cura di C. De Lotto e S. Zinato. Milano: Adelphi, 467 pp.

description: Annali di Ca’ Foscari. Serie occidentale
PR - CONSUMER PREFERENCES WITH REGARD TO RED MEAT: AN EYE-TRACKER CASE STUDY
Creators: name: Lombard, W.A.
name: Van Zyl, J.H.
name: Beelders, T.R.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Red meat
subject: Eye-tracking
subject: Labelling

description: Modern day consumers are exposed to various advertising messages by means of different media channels such as retail shops, newspapers, magazines and internet sites on a daily basis. This extent of advertising creates the need for a product to be differentiated from the products of close competitors. Eye- tracking technology can be used to investigate packaging options and rebranding options in terms of the product's logo and/or brand name. To date, only limited eye-tracking research has been done on South African consumers. The aim of this study is to investigate red meat consumer preferences amongst campus employees of the University of the Free State, Bloemfontein. In total 16 participants were used for this study. After completion of the eye-tracker tests participants also completed a post-test questionnaire. This one of its kind study used eye-tracking technology to investigate South African consumersâ€™ preferences when purchasing red meat. From the results it is evident that most of the consumer attention is on the price label with the price of the pack, sell-by date and weight of the pack receiving the largest deal of attention. It has also been found that most participants prefer cherry red meat when looking at packs of meat.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
X-Ray Spectroscopy of Stars
Creators: name: Guedel, M.
name: Naze, Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: (abridged) Non-degenerate stars of essentially all spectral classes are soft X-ray sources. Low-mass stars on the cooler part of the main sequence and their pre-main sequence predecessors define the dominant stellar population in the galaxy by number. Their X-ray spectra are reminiscent, in the broadest sense, of X-ray spectra from the solar corona. X-ray emission from cool stars is indeed ascribed to magnetically trapped hot gas analogous to the solar coronal plasma. Coronal structure, its thermal stratification and geometric extent can be interpreted based on various spectral diagnostics. New features have been identified in pre-main sequence stars; some of these may be related to accretion shocks on the stellar surface, fluorescence on circumstellar disks due to X-ray irradiation, or shock heating in stellar outflows. Massive, hot stars clearly dominate the interaction with the galactic interstellar medium: they are the main sources of ionizing radiation, mechanical energy and chemical enrichment in galaxies. High-energy emission permits to probe some of the most important processes at work in these stars, and put constraints on their most peculiar feature: the stellar wind. Here, we review recent advances in our understanding of cool and hot stars through the study of X-ray spectra, in particular high-resolution spectra now available from XMM-Newton and Chandra. We address issues related to coronal structure, flares, the composition of coronal plasma, X-ray production in accretion streams and outflows, X-rays from single OB-type stars, massive binaries, magnetic hot objects and evolved WR stars.
description: accepted for Astron. Astrophys. Rev., 98 journal pages, 30 figures (partly multiple); some corrections made after proof stage
PR - RETURNS TO RECORD-KEEPING AND BENCHMARKING FOR CANADIAN COW-CALF PRODUCERS
Creators: name: Manglai
name: Micheels, Eric
Publisher: name: Unknown
Year: 2017
Subjects: Livestock Production/Industries

description: Farmers and ranchers seek to adopt appropriate management tools and utilize a variety of strategies to reduce costs, increase productivity, and improve overall performance. This paper examines how farm management tools, specifically record keeping and benchmarking, effect production and performance on cow-calf farms in Canada and how market orientation and organizational learning mediate this relationship. A theoretical framework was developed around managerial factors (market orientation and learning orientation), strategic factors (efficiency and product differentiation), and management tools (record keeping and benchmarking). Data was collected from a panel of 61 cow-calf producers in Alberta, Saskatchewan, and Manitoba. Estimations are carried out using Ordinary Least Squares models. The results suggest that the almost all respondents maintain some level of record keeping but a significant number of them did not use benchmarking. In addition, learning oriented producers were most likely to use both record keeping and benchmarking. While we do not examine the impact of record keeping and benchmarking on profitability, our results show that benchmarking leads to greater beef production efficiency.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
PR - THE EFFECT OF A BYPRODUCT DIET ON THE PERFORMANCE OF DAIRY COWS IN THE UK
Creators: name: March, M.D.
name: Wilson, R.
name: Flockhart, J.
name: Roberts, D.J.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Industrial Organization
subject: Livestock Production/Industries
subject: dairy system
subject: housed
subject: production

description: The performance of two intensive dairy farming systems is investigated by comparing production, health and financial indicators from continuously housed herds of Holstein Friesian cows. One herd were fed a total mixed ration containing approximately 4.0 tonnes of concentrate and low forage (LF) components. The additional herd were fed solely by-product (BP) feedstuffs which were non-human edible and included no forage components except straw. This by-product and industry waste based ration generated 5% fewer greenhouse gas emissions and required 25% less land. However, the BP diet was more expensive per tonne than the ration containing forage components. Results show this complete by-product diet had negative effects on milk composition which could lead to loss of income for the farmer through penalties for reduced butterfat. Body condition score attributed to the low forage herd was, on average, higher and healthier than the cows consuming by-products. This work suggests that in order to deliver a profitable housed dairy enterprise alongside meaningful emission or land use reductions, trade-offs should be considered and milk quality maintained.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Quadratic embedding constants of fan graphs and graph joins
Creators: name: Młotkowski, Wojciech
name: Obata, Nobuaki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50, 05C12, 05C76, 33C47

description: We derive a general formula for the quadratic embedding constant of a graph join $\bar{K}_m+G$, where $\bar{K}_m$ is the empty graph on $m\ge1$ vertices and $G$ is an arbitrary graph. Applying our formula to a fan graph $K_1+P_n$, where $K_1=\bar{K}_1$ is the singleton graph and $P_n$ is the path on $n\ge1$ vertices, we show that $\mathrm{QEC}(K_1+P_n)=-\tildeα_n-2$, where $\tildeα_n$ is the minimal zero of a new polynomial $Φ_n(x)$ related to Chebyshev polynomials of the second kind. Moreover, for an even $n$ we have $\tildeα_n=\min\mathrm{ev}(A_n)$, where the right-hand side is the An minimal eigenvalue of the adjacency matrix $A_n$ of $P_n$. For an odd $n$ we show that $\min\mathrm{ev}(A_{n+1})\le\tildeα_n<\min\mathrm{ev}(A_n)$.
Orbifold Symmetry Reductions of Massive Boson-Fermion Degeneracy
Creators: name: Florakis, Ioannis
name: Kounnas, Costas
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the existence of string vacua with Massive Spectrum Degeneracy Symmetry (MSDS) in Heterotic and Type II orbifold constructions. We present a classification of all possible Z_2^N-orbifolds with MSDS symmetry that can be constructed in the formalism of the 2d free fermionic construction. We explicitly construct several two-dimensional models whose Reduced Massive Spectrum Degeneracy Symmetry (RMSDS) is due to a set of Z_2-orbifold projections induced naturally in the framework of the free fermionic construction. In all proposed models the massive boson and fermion degrees of freedom exhibit Massive Spectrum Degeneracy Symmetry while the number of massless bosons n(b) and massless fermions n(f) are different; n(b) neq n(f). This property distinguishes the MSDS Z_2-twisted theories from ordinary supersymmetric ones. Some comments are stated concerning the large marginal (J x barJ)-deformations of the proposed models connecting them to higher-dimensional gauged-supergravity theories with non-trivial geometrical fluxes.
description: 45 pages
PR - MEASURING THE EFFECT OF FIELD VIABILITY ON WHEAT YIELD
Creators: name: Olsen, Jakob Vesterlund
name: Schou, Jesper SÃ¸Lver
Publisher: name: Unknown
Year: 2017
Subjects: subject: Land Economics/Use
subject: Crop Production/Industries
subject: Land Fragmentation
subject: Field shape
subject: Field size

description: Agricultural Land fragmentation is a global problem in various magnitudes, but the disaggregated effect of field shape, size, and distance has not yet been established. Simple measures have been applied to estimate the aggregated effect of land fragmentation on farm performance. This paper contributes by introducing a new joint index for field shape and field size, field viability index (FVI), aiming at measuring the effect of land fragmentation on farm performance based on field characteristics. The index is calculated for Danish wheat fields and is tested on a large sample of Danish farmers showing a significant effect on yields. Further research may involve estimating the effect of field characteristics on the aggregated economic farm performance. The field viability index has multiple applications in e.g. benchmarking, leasing or buying arrangements, and for identifying potential land consolidation projects.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
PR - INCREASE FEEDLOT PROFITABLITY BY DIFFERENTIATING BETWEEN BEEF BREEDS
Creators: name: Oosthuizen, P.L.
name: MarÃ©, F.A.
Publisher: name: Unknown
Year: 2017
Subjects: Livestock Production/Industries

description: Feedlots currently feed animals according to a pre-determined feeding period that will result in market acceptable carcass weights. However, feedlots are price takers on the input and output side and the only way they can increase their profitability is to increase the productivity of their inputs. Precision agriculture in the feedlot, through incorporating the unique genetic growth potential of a breed, was identified to increase feedlot profitability and sustainability. This was done through applying production economic theory and calculating the point in time where the value of the marginal product is equal to the marginal factor cost and profit is thus maximized for each breed. The additional gross profit that can be generated through applying the PMFP is 6% according to the specific case study. The study indicates that the differences in the genetic growth potential of breeds can be used as a management tool in order to generate additional profit from any breed.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Renormalizability of Massive Gravity in Three Dimensions
Creators: name: Oda, Ichiro
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss renormalizability of a recently established, massive gravity theory with particular higher derivative terms in three space-time dimensions. It is shown that this massive gravity is certainly renormalizable as well as unitary, so it gives us a physically interesting toy model of perturbative quantum gravity in three dimensions.
description: 13 pages, no figures
PR - FARMER PERSONALITY AND FARM PROFITABILITY
Creators: name: O'Leary, Niall
name: Tranter, Richard
name: Bennett, Richard
Publisher: name: Unknown
Year: 2017
Subjects: subject: Farm Management
subject: Profitability
subject: Personality
subject: Management

description: Personality has been shown to predict performance in many fields but in agriculture, the relationship has not been studied in detail. In the current study, 59 dairy farm managers in England and Wales completed psychological assessments. On 40 of 53 measures, farmers were found to be distinct from a general working population norm. Significant correlations to profitability for four measures are reported. Almost 40% of variation in farm profitability was predicted by a simple linear model with just three personality measures. 'Detail Conscious' and 'Leadership' measures positively and 'Relaxed' negatively predicted profitability. Improvements to farm profitability may be attainable by measuring and managing these three measures in farm managers' and staff.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Um estudo sobre o Sistema de Apropriação de Custos Públicos (ACP) das Universidades Estaduais Baianas: o caso do Sistema ACP na Universidade Estadual de Feira de Santana
Creators: name: Mota Júnior, Antônio de Macêdo
Publisher: name: figshare
Year: 2021
Subjects: subject: 150105 Management Accounting
subject: FOS: Economics and business

description: Este artigo é um estudo de caso, com a seguinte problemática: será que existem falhas na estrutura e nos procedimentos corrigidos no Sistema de Apropriação de Custos Públicos (ACP) implantado na UEFS? A trajetória deste trabalho apresenta uma caracterização do Sistema ACP, como um sistema de informação gerencial e sua composição e objetivos, além de uma análise da estrutura e nos procedimentos do sistema implantado, e por fim, algumas proposições e considerações importantes sobre a análise realizada. Para a condução da investigação efetuou-se uma pesquisa qualitativa exploratória, utilizando-se procedimentos como a coleta de dados e adaptada com os agentes públicos que se relacionam com o sistema. Desta forma, foram identificadas algumas falhas tanto na estrutura como nos procedimentos corrigidos no ACP.
PR - PRECISION DAIRY HERD MANAGEMENT, A QUANTILE APPROACH
Creators: name: Richard, Jessica
name: Mark, Tyler
Publisher: name: Unknown
Year: 2017
Subjects: subject: Industrial Organization
subject: Precision Dairy (PD)
subject: Dairy
subject: Quantile Regression

description: Dairy producers have a variety of Precision Dairy technologies available to them, which creates the need for evaluation of new information streams generated by these technologies. At this point, a number of dairies are just collecting information, but may not have the technical skills or understanding to evaluate the data, let alone implement changes to their decision-making process. This issue has created the demand for research that integrates new decision criteria into daily herd management. Academics need experience with these new data sets and potential methodologies to contribute to producer-targeted recommendations. This case study serves as investigative research intended to gain familiarity with the complexities and availability of these types of data sets. This initial work has provided results that show significant relationships between newly available variables and milk production. While evidence suggests that increased efficiency is made possible by these precision technologies, the research addressing the significant hurdles to adoption is still in its infancy. This quantile regression analyzes a herd over one year to estimate a production function that uses cow-level input factors such as resting bouts, steps taken, eating time and body weight. Results demonstrate the ability of these technologies to create value to herd management strategies.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing
Creators: name: MAGIC Collaboration
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Cherenkov light flashes produced by Extensive Air Showers are very short in time. A high bandwidth and fast digitizing readout, therefore, can minimize the influence of the background from the light of the night sky, and improve the performance in Cherenkov telescopes. The time structure of the Cherenkov image can further be used in single-dish Cherenkov telescopes as an additional parameter to reduce the background from unwanted hadronic showers. A description of an analysis method which makes use of the time information and the subsequent improvement on the performance of the MAGIC telescope (especially after the upgrade with an ultra fast 2 GSamples/s digitization system in February 2007) will be presented. The use of timing information in the analysis of the new MAGIC data reduces the background by a factor two, which in turn results in an enhancement of about a factor 1.4 of the flux sensitivity to point-like sources, as tested on observations of the Crab Nebula.
description: 27 pages, 11 figures, accepted by Astroparticle Physics
PR - EDUCATIONAL FARM TOUR INCREASES CONSUMER CONFIDENCE IN MODERN FOOD PRODUCTION
Creators: name: Richer, Eric
name: Powers-Barker, Patrice
name: Welker, Melissa
name: Stechschulte, Jil
name: Stone, Amy
Publisher: name: Unknown
Year: 2017
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Resource /Energy Economics and Policy
subject: educational farm tour
subject: local foods
subject: consumer confidence in agriculture

description: In 2015, an educational farm tour was held in Ohio, USA with 3,009 participants to promote consumer confidence in modern food production. Exit surveys (n=578) indicated that first-time visitorsâ€™ (60% of those surveyed) level of trust in modern food production had a mean of 3.68 before and 4.44 after the tour with an increase of .76 (5-point scale; 1 = very low, 5 = very high). Transparency on the farm was a key factor in their increased trust. This study encourages agricultural communities that well planned educational farm tours can have meaningful impact on consumer confidence in modern food production.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Conventional nuclear effects on generalized parton distributions of trinucleons
Creators: name: Scopetta, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The measurement of nuclear Generalized Parton Distributions (GPDs) will represent a valuable tool to understand the structure of bound nucleons in the nuclear medium, as well as the role of non-nucleonic degrees of freedom in the phenomenology of hard scattering off nuclei. By using a realistic microscopic approach for the evaluation of GPDs of 3He, it will be shown that conventional nuclear effects, such as isospin and binding ones, or the uncertainty related to the use of a given nucleon-nucleon potential, are rather bigger than in the forward case. These findings suggest that, if great attention is not paid to infer the properties of nuclear GPDs from those of nuclear parton distributions, conventional nuclear effects can be easily mistaken for exotic ones. It is stressed therefore that 3He, for which the best realistic calculations are possible, represents a unique target to discriminate between conventional and exotic effects. The complementary information which could be obtained by using a 3H target is also addressed.
description: 24 pages, 8 figures
PR - DETERMINANTS OF WORK INCOME OF FAMILY WORK UNITS OF SWISS DAIRY FARMS
Creators: name: Schorr, Anke
name: Lips, Markus
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural Finance
subject: dairy
subject: quantile regression
subject: random-effects model

description: The paper analyses the determinants of annual income of a family work unit (FWU) for Swiss dairy farms based on data from the Farm Accountancy Data Network (FADN). Two regression types, namely a random-effects model and a quantile regression focusing on deciles, are applied. Organic and full-time farming, large farm size, high milk yield per cow and a diversification in either arable crops or agriculture-related activities are identified as attributes of a financially successful farm. In addition, the quantile regression reveals that the impacts of milk yield and concentrate inputs on annual income per FWU vary clearly among deciles, indicating that a high milk yield contributes most to the financial success of the best performing farms. The comparison between the two models shows that quantile regression is an appropriate analysis tool in the presence of substantial heterogeneity as is the case for Swiss dairy farms.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Empirical tests for the impact of trusteed pension plans in the Canadian equity market
Creators: name: Hilton, Donald Bruce
Publisher: name: University of British Columbia
Year: 2011

description: The purpose of this study is to empirically test the hypothesis that the aggregate activity of pension funds in the Canadian equity market has created a segmentation of that market. It is possible that this aggregate activity has a measurable impact on the market price of the stocks purchased. If it can be shown that pension funds do command a relatively strong position in the market for Canadian equities then a study of this nature would be justified. The importance of pension funds in recent years will be discussed and any trends of significance to the development of the Canadian equity market identified. The empirical study will cover the period 1964-72 and will determine whether the concentration of pension fund investments in a small number of Canadian common stocks has in fact had a measurable impact on the market prices of these stocks. If pension fund activity was bidding up the market price of these stocks one would expect this to be indicated in a significantly different rate of return for these stocks in comparison with other non-pension stocks.
PR - PASTORAL DAIRY FARMING SYSTEMS AND INTENSIFICATION, CHALLENGES IN INTERPRETATION
Creators: name: Shadbolt, Nicola
name: Siddique, Muhammed Imran
name: Hammand, Nicola
Publisher: name: Unknown
Year: 2017
Subjects: subject: Farm Management
subject: Industrial Organization
subject: dairy farming systems
subject: benchmarking
subject: profitability

description: The response of many New Zealand farmers to increasing and volatile global milk prices has been to intensify their farming systems. This has generated much debate both within NZ and globally with justification for and against the changes ranging from competitive advantage to profitability to environmental footprint. Analysing nine years of farmer data provides evidence that metrics can mislead; while profit per hectare increases and operating expenses per KgMS can increase as systems intensify the metrics that reflect resources employed, operating return on dairy assets and cost of production show no significant difference between systems. After allowing for inflation the cost of production differences between the lowest and the highest milk price years also disappear apart for the more intensive systems 4 and 5. With no significant difference between the profitability or cost of production of systems as they intensify, industry research and extension would be better employed identifying best practice within each system than between systems.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
The Millennium Galaxy Catalogue: Exploring the Color-Concentration Bimodality via Bulge-Disc Decomposition
Creators: name: Cameron, Ewan
name: Driver, Simon P.
name: Graham, Alister W.
name: Liske, Jochen
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the origin of the galaxy color-concentration bimodality at the bright-end of the luminosity function (M(B) - 5 log h < -18 mag) with regard to the bulge-disc nature of galaxies. Via (2D) surface brightness profile modeling with GIM2D, we subdivide the local galaxy population in the Millennium Galaxy Catalogue into one-component and two-component systems. We reveal that one-component (elliptical and disc-only) systems define the two peaks of the galaxy color-concentration distribution (with total stellar mass densities of 0.7 +/- 0.1 and 1.3 +/- 0.1 x 10^8 h Msol Mpc^-3 respectively), while two-component systems contribute to both a bridging population and the red, concentrated peak (with total stellar mass densities of 1.1 +/- 0.1 and 1.8 +/- 0.2 x 10^8 h Msun Mpc^-3 respectively). Moreover, luminous, `bulge-less, red discs' and `disc-less, blue bulges' (blue ellipticals) are exceptionally rare (with volume-densities of 1.7 +/- 0.3 and 1.1 \pm 0.1 x 10^-4 h^3 Mpc^-3 respectively). Finally, within the two-component population we confirm a previously-reported correlation between bulge and disc color (with a mean offset of only = 0.22 +/- 0.02 mag).
description: 14 pages, 8 figures, accepted for publication in ApJ (18 April 2009). High resolution version available at http://www-star.st-and.ac.uk/~ec60/mgc.pdf
PR - PERFORMANCE AND MARKETING OPTIONS FOR INFORMAL CATTLE PRODUCERS IN THE EASTERN CAPE PROVINCE OF SOUTH AFRICA
Creators: name: Spies, David C.
name: Idsardi, Ernst F.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Livestock Production/Industries
subject: Marketing channels
subject: performance
subject: calving rate

description: High quality market and value chains for small-scale emerging farmers in South Africa has been under discussion since the liberalisation and deregulation of the South African marketing boards. Local producers are now competing in a dynamic global market environment without fixed prices and very little input and output price support. The red meat industry did not escape these challenges. The agricultural sector in South Africa is known for its dualistic nature. This phenomenon is also prevalent in the red meat sector where two distinctive value chains are present, a formal value chain where mostly the commercial producers participate and an informal value chain where a large number of informal producers compete. These two value chains have evolved differently into two unique production and marketing systems. One of the largest shortcomings in both systems, formal and informal, is the lack of accurate and timely information and statistics. This study contributes to estimate the status que of the performance and marketing options in the informal red meat sector of the Eastern Cape Province in South Africa. In the past the informal sector was criticised with regard to the low economic contribution to the industry as a whole. This study found performance levels in the Eastern Cape Province on par with previous estimations in other areas with off-take rates close to 16 percent and calving rates in the region of 32 percent. However, the research proved that farmers in the informal red meat sector mainly utilise formal value chains with main constraints being information related, more specific product requirement information.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Multi-strange particle production in relativistic heavy ion collisions at $\sqrt{s_{NN}}=62.4$ GeV
Creators: name: Vasconcelos, G. M. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present preliminary STAR results on measurements of multi-strange particles $Ξ$, $Ω$ and their anti-particles from Au+Au and Cu+Cu at $\sqrt{s_{NN}}=62.4$ GeV collisions. In order to better understand the role of strangeness enhancement in nucleus-nucleus collisions and its scaling properties with system size, we compare the results from Au+Au and Cu+Cu reactions for different event centrality classes. Strangeness enhancement is discussed in the context of multi-strange to pion ratios. Finally, $Ω/ϕ$ ratio is shown for different systems and energies for a systematic study.
Systematic ^{75}As NMR study of the dependence of low-lying excitations on F doping in the iron oxypnictide LaFeAs(O_{1-x}F_{x})
Creators: name: Nakai, Yusuke
name: Kitagawa, Shunsaku
name: Ishida, Kenji
name: Kamihara, Yoichi
name: Hirano, Masahiro
name: Hosono, Hideo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report systematic $^{75}$As NMR studies on LaFeAs(O$_{1-x}$F$_{x}$) ($0\le x\le0.14$). At $x=0.04$ near the phase boundary, from resistivity, spin-lattice relaxation rate $1/T_1$, and NMR spectrum measurements, we found weak magnetic order at $T_N\simeq 30$ K. Antiferromagnetic (AFM) fluctuations proved through $1/T_1$ are suppressed significantly with F-doping, and pseudogap behavior without pronounced AFM fluctuations is observed at $x=0.11$ where $T_c$ is maximum. This significant suppression of $1/T_1T$ upon F-doping while $T_c$ remains nearly unchanged suggests that low-energy AFM fluctuations probed with $^{75}$As NMR do not play a crucial role in the superconductivity.
description: 5 pages, 5 figures, published in Phys. Rev. B
PR - IMPACT OF FEEDING SYSTEMS ON THE PROFIT AND EFFICIENCY OF NEW ZEALAND DAIRY FARMS
Creators: name: Tozer, Peter
Publisher: name: Unknown
Year: 2017
Subjects: subject: Industrial Organization
subject: Farm Management
subject: seasonal production
subject: pasture
subject: efficiency

description: This study utilizes a production function based approach using data on milk solids, farm working expenses, labour, farm area total dairy-based assets to measure and compare the efficiency of profitability measured as returns on dairy assets of sharemilkers and owner-operators in New Zealand. A second function to measure inefficiency and the sources of inefficiency included year, feeding system, region, and other variables. The results show that on average owner operators were reasonably â€œefficientâ€ with an average efficiency of 70% however average sharemilker efficiency was only 55%. Feeding system and time were major influences on efficiency for owner operators but not for sharemilkers, where the number of cows and time were the major factors influencing efficiency.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
PR - FINANCIAL IMPACT OF WHEAT QUALITY STANDARDS ON SOUTH AFRICAN WHEAT PRODUCERS: A DLP APPROACH
Creators: name: Van Der Merwe, Johannes DaniÃ«L
Publisher: name: Unknown
Year: 2017
Subjects: subject: Crop Production/Industries
subject: Financial impact
subject: South African wheat industry
subject: wheat quality

description: The South African wheat industry has been under pressure in recent years from global economic instability and a fast-changing domestic policy environment. This has manifested in declining wheat production and profitability at farm level. Wheat quality plays a key role in wheat-buying decisions, with quality improvements correlating negatively with yield and, ultimately, productivity. However, any new wheat cultivar released for commercial production must still meet the standards of the countryâ€™s wheat-classification system, which has led to wheat sometimes being imported in the face of a domestic shortfall. This has inevitably led to tension within the industry and affected both performance and pricing. Using a Dynamic Linear Programming model, this paper takes an in-depth look at the financial impact that resulted from this classification system that affected the performance and pricing of primary producers.
description: Twenty-First International Farm Management Congress, Edinburgh, Scotland, July 2-7, 2017
Morrey-Lorentz estimates for Hodge-type systems
Creators: name: Sengupta, Banhirup
name: Sil, Swarnendu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J57, 35B65, 35Q60

description: We prove up to the boundary regularity estimates in Morrey-Lorentz spaces for weak solutions of the linear system of differential forms with regular anisotropic coefficients
 \begin{equation*}
 d^{\ast} \left( A dω\right) + B^{\intercal}d d^{\ast} \left( Bω\right) = λBω+ f \text{ in } Ω,
 \end{equation*}
 with either $ ν\wedge ω$ and $ν\wedge d^{\ast} \left( Bω\right)$ or $ν\lrcorner Bω$ and
 $ν\lrcorner \left( A dω\right)$ prescribed on $\partialΩ.$ We derive these estimates from the $L^{p}$ estimates obtained in \cite{Sil_linearregularity} in the spirit of Campanato's method. Unlike Lorentz spaces, Morrey spaces are neither interpolation spaces nor rearrangement invariant. So Morrey estimates can not be obtained directly from the $L^{p}$ estimates using interpolation. We instead adapt an idea of Lieberman \cite{Lieberman_morrey_from_Lp} to our setting to derive the estimates. Applications to Hodge decomposition in Morrey-Lorentz spaces, Gaffney type inequalities and estimates for related systems such as Hodge-Maxwell systems and `div-curl' systems are discussed.
On the optimal path of growth in chum salmon (Oncorhynchus keta)
Creators: name: Wild, Alexander
Publisher: name: University of British Columbia
Year: 2011

description: The effects of temperatures within the optimal range for incubation of salmon, and hyperoxic and hypoxic oxygen tensions, were examined to develop an optimal path of growth during the pre- rearing stage for chum salmon (Oncorhynchus keta). During early development, and at constant oxygen tension, an elevated temperature of 55°F (12.8°C) led to accelerated growth and most efficient conversion of yolk compared to 50°F (10°C) or 45°F (7.2°C). With increased age, growth and efficiency were favored by decreasing temperature with its associated increase in oxygen concentration and reduced metabolic demand by the embryo. After hatching, the detrimental effect of a high temperature was not offset by the increased availability of oxygen and growth was retarded relative to lower temperatures. Oxygen tensions within the treatment range of 145 to 253 mm Hg did not contribute significantly to embryo weight when measured at equal stages of development in day-degrees. The optimal path for growth with minimal mortality involved a gradual reduction in temperature from 55° to 45°F during incubation, a constant temperature of 45°F after hatching to the beginning of active feeding, and an oxygen tension not in excess of air saturation.