cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multitask Learning of Vegetation Biochemistry from Hyperspectral Data
Creators: name: Gewali, Utsav B.
name: Monteiro, Sildomar T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Statistical models have been successful in accurately estimating the biochemical contents of vegetation from the reflectance spectra. However, their performance deteriorates when there is a scarcity of sizable amount of ground truth data for modeling the complex non-linear relationship occurring between the spectrum and the biochemical quantity. We propose a novel Gaussian process based multitask learning method for improving the prediction of a biochemical through the transfer of knowledge from the learned models for predicting related biochemicals. This method is most advantageous when there are few ground truth data for the biochemical of interest, but plenty of ground truth data for related biochemicals. The proposed multitask Gaussian process hypothesizes that the inter-relationship between the biochemical quantities is better modeled by using a combination of two or more covariance functions and inter-task correlation matrices. In the experiments, our method outperformed the current methods on two real-world datasets.
description: In Proc. 8th IEEE Workshop on Hyperspectral Image and Signal Processing : Evolution in Remote Sensing (WHISPERS), August 2016
On the Liouville type theorems for self-similar solutions to the Navier-Stokes equations
Creators: name: Chae, Dongho
name: Wolf, Joerg
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30, 76D03, 76D05

description: We prove Liouville type theorems for the self-similar solutions to the Navier-Stokes equations. One of our results generalizes the previous ones by Nečas-Ružička-Šverak and Tsai. Using the Liouville type theorem we also remove a scenario of asymtotically self-similar blow-up for the Navier-Stokes equations with the profile belonging to $L^{p, \infty} (\Bbb R^3)$ with $p> \frac{3}{2}$.
description: 22 pages
Out of Bounds - Vol. 14 No. 02
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Prisoners--Social conditions
valueUri: http://id.worldcat.org/fast/1077200
subject: Prisoners' writings
valueUri: http://id.worldcat.org/fast/1077268
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Authority
valueUri: http://id.worldcat.org/fast/821653
subject: Prison periodicals
valueUri: http://id.worldcat.org/fast/1077063
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Correctional institutions
valueUri: http://id.worldcat.org/fast/880178
subject: Imprisonment
valueUri: http://id.worldcat.org/fast/968277
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326

description: A non-profit quarterly publication of the thoughts, feelings, and distinct perspectives of prisoners and visitors by the prisoners at William Head Institution in Victoria, B.C. with the aim of providing a different view to the general public. Edited by Patrick W. Rafferty.
description: Article topics include: Legal Column, Around the PENinsula, Smoking Ban Survey, Short Takes, Death in the scolding wind, poetry, Attitude.
Seemer Bote, Nr. 274 (November 2022)
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 2022
Subjects: subject: 070 Publizistische Medien, Journalismus, Verlagswesen
subject: 307 Gemeinschaften
subject: Seen (Winterthur)
subject: Ortsverein Seen
subject: Stadtteilkultur

description: Bis Nr. 91 (März 1987) unter dem Titel «Seener Boote» erschienen.
Biochar Shape-Stabilized Phase-Change Materials for Thermal Energy Storage
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2022
Subjects: Phase Chance Materials
Shape Stabilized Phase Change Materials
Biochar
Composite Materials
Biomass Based Porous Carbon
Mesoporous Material
Mesoporous Biochar
Phase Change Composites
Thermal Management
Thermal Conductivity
Latent Heat Storage Biocomposites

description: Biochar is the black fine-grained residue of the pyrolysis of biomass. It is the product of a thermochemical decomposition at moderate temperatures under oxygen-limiting conditions. This residue has a pore structure with large specific surface area, accompanied by a strong adsorption capacity. Due to the presence of a mesoporous framework, biochar can be used to shape-stabilize phase-change materials (PCMs), which are substances absorbing and releasing thermal energy at phase transitions. Biochar is overcoming the leakage problem of PCMs, by encapsulating their liquid phases in the pores. Consequently, biochar and PCMs, in particular the organic PCMs, can be used to produce eco-friendly stable composites, which can be useful for heating and cooling applications. Here we propose a discussion of recent literature about development and applications of biochar-based composite PCMs. In particular, the literature about the role of biochar mesopores in the encapsulation of PCM is highlighted.
description: Submitted to the SSRN Electronic Journal
Free Energy of the Uniform Electron Gas: Testing Analytical Models against First Principle Results
Creators: name: Groth, Simon
name: Dornheim, Tobias
name: Bonitz, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The uniform electron gas is a key model system in the description of matter, including dense plasmas and solid state systems. However, the simultaneous occurence of quantum, correlation, and thermal effects makes the theoretical description challenging. For these reasons, over the last half century many analytical approaches have been developed the accuracy of which has remained unclear. We have recently obtained the first \textit{ab initio} data for the exchange correlation free energy of the uniform electron gas [T. Dornheim \textit{et al.}, Phys.~Rev.~Lett.~\textbf{117}, 156403 (2016)] which now provides the opportunity to assess the quality of the mentioned approaches and parametrizations. Particular emphasis is put on the warm dense matter regime, where we find significant discrepancies between the different approaches.
Limited Information Shared Control and its Applications to Large Vehicle Manipulators
Creators: name: Varga, Bálint
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023

description: Diese Dissertation beschäftigt sich mit der kooperativen Regelung einer mobilen Arbeitsmaschine, welche aus einem Nutzfahrzeug und einem oder mehreren hydraulischen Manipulatoren besteht. Solche Maschinen werden für Aufgaben in der Straßenunterhaltungsaufgaben eingesetzt. Die Arbeitsumgebung des Manipulators ist unstrukturiert, was die Bestimmung einer Referenztrajektorie erschwert oder unmöglich macht. Deshalb wird in dieser Arbeit ein Ansatz vorgeschlagen, welcher nur das Fahrzeug automatisiert, während der menschliche Bediener ein Teil des Systems bleibt und den Manipulator steuert. Eine solche Teilautomatisierung des Gesamtsystems führt zu einer speziellen Klasse von Mensch-Maschine-Interaktionen, welche in der Literatur noch nicht untersucht wurde: Eine kooperative Regelung zwischen zwei Teilsystemen, bei der die Automatisierung keine Informationen von dem vom Menschen gesteuerten Teilsystem hat. Deswegen wird in dieser Arbeit ein systematischer Ansatz der kooperativen Regelung mit begrenzter Information vorgestellt, der den menschlichen Bediener unterstützen kann, ohne die Referenzen oder die Systemzustände des Manipulators zu messen. Außerdem wird ein systematisches Entwurfskonzept für die kooperative Regelung mit begrenzter Information vorgestellt. Für diese Entwurfsmethode werden zwei neue Unterklassen der sogenannten Potenzialspiele eingeführt, die eine systematische Berechnung der Parameter der entwickelten kooperativen Regelung ohne manuelle Abstimmung ermöglichen. Schließlich wird das entwickelte Konzept der kooperativen Regelung am Beispiel einer großen mobilen Arbeitsmaschine angewandt, um seine Vorteile zu ermitteln und zu bewerten. Nach der Analyse in Simulationen wird die praktische Anwendbarkeit der Methode in drei Experimenten mit menschlichen Probanden an einem Simulator untersucht. Die Ergebnisse zeigen die Überlegenheit des entwickelten kooperativen Regelungskonzepts gegenüber der manuellen Steuerung und der nicht-kooperativen Steuerung hinsichtlich sowohl der objektiven Performanz als auch der subjektiven Bewertung der Probanden. Somit zeigt diese Dissertation, dass die kooperative Regelung mobiler Arbeitsmaschinen mit den entwickelten theoretischen Konzepten sowohl hilfreich als auch praktisch anwendbar ist.
Out of Bounds - Vol. 14 No. 03
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Prisoners' writings
valueUri: http://id.worldcat.org/fast/1077268
subject: Prisoners--Social conditions
valueUri: http://id.worldcat.org/fast/1077200
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Authority
valueUri: http://id.worldcat.org/fast/821653
subject: Imprisonment
valueUri: http://id.worldcat.org/fast/968277
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Correctional institutions
valueUri: http://id.worldcat.org/fast/880178
subject: Prison periodicals
valueUri: http://id.worldcat.org/fast/1077063
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401

description: A non-profit quarterly publication of the thoughts, feelings, and distinct perspectives of prisoners and visitors by the prisoners at William Head Institution in Victoria, B.C. with the aim of providing a different view to the general public. Edited by Patrick W. Rafferty.
description: Article topics include: Legal Column, Around the PENinsula, No Smoking Section, Treaty on Transfers, Iron House Drum, Traditional Healing, poetry.
Enhanced spin-orbit torque via modulation of spin current absorption
Creators: name: Qiu, Xuepeng
name: Legrand, William
name: He, Pan
name: Wu, Yang
name: Yu, Jiawei
name: Ramaswamy, Rajagopalan
name: Manchon, Aurelien
name: Yang, Hyunsoo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The magnitude of spin-orbit torque (SOT), exerted to a ferromagnet (FM) from an adjacent heavy metal (HM), strongly depends on the amount of spin currents absorbed in the FM. We exploit the large spin absorption at the Ru interface to manipulate the SOTs in HM/FM/Ru multilayers. While the FM thickness is smaller than its spin dephasing length of 1.2 nm, the top Ru layer largely boosts the absorption of spin currents into the FM layer and substantially enhances the strength of SOT acting on the FM. Spin-pumping experiments induced by ferromagnetic resonance support our conclusions that the observed increase in the SOT efficiency can be attributed to an enhancement of the spin-current absorption. A theoretical model that considers both reflected and transmitted mixing conductances at the two interfaces of FM is developed to explain the results.
description: Accepted for publication in Physical Review Letters
Design, Control, and Evaluation of a Human-Inspired Robotic Eye
Creators: name: Schulz, Simon
Publisher: name: Universität Bielefeld
Year: 2020
Subjects: subject: 000

description: The field of human-robot interaction deals with robotic systems that involve humans and robots closely interacting with each other. With these systems getting more complex, users can be easily overburdened by the operation and can fail to infer the internal state of the system or its ”intentions”. A social robot, replicating the human eye region with its familiar features and movement patterns, that are the result of years of evolution, can counter this. However, the replication of these patterns requires hard- and software that is able to compete with the human characteristics and performance. Comparing previous systems found in literature with the human capabili- ties reveal a mismatch in this regard. Even though individual systems solve single aspects, the successful combination into a complete system remains an open challenge. In contrast to previous work, this thesis targets to close this gap by viewing the system as a whole — optimizing the hard- and software, while focusing on the replication of the human model right from the beginning. This work ultimately provides a set of interlocking building blocks that, taken together, form a complete end-to-end solution for the de- sign, control, and evaluation of a human-inspired robotic eye. Based on the study of the human eye, the key driving factors are identified as the success- ful combination of aesthetic appeal, sensory capabilities, performance, and functionality. Two hardware prototypes, each based on a different actua- tion scheme, have been developed in this context. Furthermore, both hard- ware prototypes are evaluated against each other, a previous prototype, and the human by comparing objective numbers obtained by real-world mea- surements of the real hardware. In addition, a human-inspired and model- driven control framework is developed out, again, following the predefined criteria and requirements. The quality and human-likeness of the motion, generated by this model, is evaluated by means of a user study. This frame- work not only allows the replication of human-like motion on the specific eye prototype presented in this thesis, but also promotes the porting and adaption to less equipped humanoid robotic heads. Unlike previous systems found in literature, the presented approach provides a scaling and limiting function that allows intuitive adjustments of the control model, which can be used to reduce the requirements set on the target platform. Even though a reduction of the overall velocities and accelerations will result in a slower motion execution, the human characteristics and the overall composition of the interlocked motion patterns remain unchanged.
Out of Bounds - Vol. 14 No. 01
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Imprisonment
valueUri: http://id.worldcat.org/fast/968277
subject: Authority
valueUri: http://id.worldcat.org/fast/821653
subject: Prisoners--Social conditions
valueUri: http://id.worldcat.org/fast/1077200
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Correctional institutions
valueUri: http://id.worldcat.org/fast/880178
subject: Prisoners' writings
valueUri: http://id.worldcat.org/fast/1077268
subject: Prison periodicals
valueUri: http://id.worldcat.org/fast/1077063
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387

description: A non-profit quarterly publication of the thoughts, feelings, and distinct perspectives of prisoners and visitors by the prisoners at William Head Institution in Victoria, B.C. with the aim of providing a different view to the general public. Edited by Patrick W. Rafferty.
description: Article topics include: Legal Column, Around the PENinsula, Smoking Ban in Prisons, Positive Justice, Where were you, Knowing me is Knowing you, Short takes, Death in the scolding wind.
How Often Do Diquarks Form? A Very Simple Model
Creators: name: Lebed, Richard F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Starting from a textbook result, the nearest-neighbor distribution of particles in an ideal gas, we develop estimates for the probability with which quarks $q$ in a mixed $q$, $\bar q$ gas are more strongly attracted to the nearest $q$, potentially forming a diquark, than to the nearest $\bar q$. Generic probabilities lie in the range of tens of percent, with values in the several percent range even under extreme assumptions favoring $q\bar q$ over $qq$ attraction.
description: 6 pages, 2 tables, no figures
Relating Microstructure and Particle-level Stress in Colloidal Crystals Under Increased Confinement
Creators: name: Lin, Neil Y. C.
name: Cohen, Itai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mechanical properties of crystalline materials can be substantially modified under confinement. Such modified macroscopic properties are usually governed by the altered microstructures and internal stress fields. Here, we use a parallel plate geometry to apply a quasi-static squeeze flow crushing a colloidal polycrystal while simultaneously imaging it with confocal microscopy. The confocal images are used to quantify the local structure order and, in conjunction with Stress Assessment from Local Structural Anisotropy (SALSA), determine the stress at the single-particle scale. We find that during compression, the crystalline regions break into small domains with different geometric packing. These domains are characterized by a pressure and deviatoric stress that are highly localized with correlation lengths that are half those found in bulk. Furthermore, the mean deviatoric stress almost doubles, suggesting a higher brittleness in the highly-confined samples.
description: Soft Matter 2016
Higher harmonic anisotropic flow of identified particles in Pb-Pb collisions with the ALICE detector
Creators: name: Mohammadi, Naghmeh
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Anisotropic flow plays a crucial role in establishing the equation of state of the Quark Gluon Plasma. The results at RHIC and LHC have demonstrated that the matter created in heavy-ion collisions behaves as a nearly perfect fluid reflected in the low value of the shear viscosity over entropy density ratio ($η/s$). The higher flow harmonics are particularly sensitive to the value of $η/s$ in hydrodynamic calculations. In this analysis, we present the first ALICE results on the $p_{\mathrm{T}}$ differential $v_{2}$, $v_{3}$ and $v_{4}$ for $π^{\pm}$, $\mathrm{K}^{\pm}$, p($\bar p$) from the high statistics 2011 heavy-ion run. We investigate how these $v_{n}$ coefficients evolve with particle mass and centrality for the 0--1\% and 20--30\% centrality ranges. These new measurements aim at differentiating between models that use different initial conditions, constraining further the value of $η/s$ and allowing to decouple the influence of the late hadronic stage from the hydrodynamic evolution of the system.
description: proceeding of "Quark Matter 2015", Kobe-Japan
Laser-Induced Linear Electron Acceleration in Free Space
Creators: name: Wong, Liang Jie
name: Hong, Kyung-Han
name: Carbajo, Sergio
name: Fallahi, Arya
name: Soljačić, Marin
name: Joannopoulos, John D.
name: Kärtner, Franz X.
name: Kaminer, Ido
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Linear acceleration in free space is a topic that has been studied for over 20 years, and its ability to eventually produce high-quality, high energy multi-particle bunches has remained a subject of great interest. Arguments can certainly be made that such an ability is very doubtful. Nevertheless, we chose to develop an accurate and truly predictive theoretical formalism to explore this remote possibility in a computational experiment. The formalism includes exact treatment of Maxwell's equations, exact relativistic treatment of the interaction among the multiple individual particles, and exact treatment of the interaction at near and far field. Several surprising results emerged. For example, we find that 30 keV electrons (2.5% energy spread) can be accelerated to 7.7 MeV (2.5% spread) and to 205 MeV (0.25% spread) using 25 mJ and 2.5 J lasers respectively. These findings should hopefully guide and help develop compact, high-quality, ultra-relativistic electron sources, avoiding conventional limits imposed by material breakdown or structural constraints.
description: Supplementary Information starts on pg 16
Longitudinal uniformity, time performance and irradiation test of pure CsI crystals
Creators: name: Angelucci, M.
name: Atanova, O.
name: Baccaro, S.
name: Cemmi, A.
name: Cordelli, M.
name: Donghia, R.
name: Giovannella, S.
name: Happacher, F.
name: Miscetti, S.
name: Sarra, I.
name: Soleti, S. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: To study an alternative to BaF2, as the crystal choice for the Mu2e calorimeter, thirteen pure CsI crystals from Opto Materials and ISMA producers have been characterized by determining their light yield (LY) and longitudinal response uniformity (LRU), when read with a UV extended PMT. The crystals show a LY of ~ 100 p.e./MeV (~ 150 p.e./MeV) when wrapped with Tyvek and coupled to the PMT without (with) optical grease. The LRU is well represented by a linear slope that is on average around -0.6 %/cm. The timing performances of the Opto Materials crystal, read with a UV extended MPPC, have been evaluated with minimum ionizing particles. A timing resolution of ~ 330 ps (~ 440 ps) is achieved when connecting the photosensor to the MPPC with (without) optical grease. The crystal radiation hardness to a ionization dose has also been studied for one pure CsI crystal from SICCAS. After exposing it to a dose of 900 Gy, a decrease of 33% in the LY is observed while the LRU remains unchanged.
description: Presented at Frontier Detectors for Frontier Physics,13th Pisa Meeting on Advanced Detectors, 24-30 May 2015 (2 pages, 4 figures)
In-depth study of 16CygB using inversion techniques
Creators: name: Buldgen, G.
name: Salmon, S. J. A. S.
name: Reese, D. R.
name: Dupret, M-A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The 16Cyg binary system hosts the solar-like Kepler targets with the most stringent observational constraints. Moreover, this system is particularly interesting since both stars are very similar in mass but the A component is orbited by a red dwarf, whereas the B component is orbited by a Jovian planet and thus could have formed a more complex planetary system. In our previous study, we showed that seismic inversions of integrated quantities could be used to constrain microscopic diffusion in the A component. In this study, we analyse the B component in the light of a more regularised inversion. We wish to analyse independently the B component of the 16Cyg binary system using the inversion of an indicator dedicated to analyse core conditions, denoted tu. Using this independent determination, we wish to analyse any differences between both stars due to the potential influence of planetary formation on stellar structure and/or their respective evolution. First, we recall the observational constraints for 16CygB and the method we used to generate reference stellar models. The inversion results were then used to analyse the differences between the A and B components. The tu indicator for 16CygB shows a disagreement with models including microscopic diffusion and sharing the chemical composition previously derived for 16CygA. Small changes in chemical composition are insufficient to solve the problem but that extra mixing can account for the differences seen between both stars. We use a parametric approach to analyse the impact of extra mixing in the form of turbulent diffusion on the behaviour of the tu values. We conclude on the necessity of further investigations using models with a physically motivated implementation of extra mixing including additional constraints to further improve the accuracy with which the fundamental parameters of this system are determined.
description: Accepted for publication in Astronomy & Astrophysics
A case study of longitudinal trends in biophysical and financial performance of spring-calving pasture-based dairy farms
Creators: name: Ramsbottom, George
name: Horan, Brendan
name: Pierce, Karina M.
name: Berry, Donagh P.
name: Roche, John R.
name: Ramsbottom, George
name: Horan, Brendan
name: Pierce, Karina M.
name: Berry, Donagh P.
name: Roche, John R.
Publisher: name: Unknown
Year: 2020
Subjects: subject: Financial Economics
subject: Livestock Production/Industries
subject: dairy systems
subject: pasture
subject: profit
subject: supplement

description: The objectives of the present study were to characterize the trends in production and profitability temporally, when ranked by the proportion of feed purchased, and when ranked by average operating profitability (i.e., net profit/ha). A dataset of 315 Irish pasture-based dairy farms with complete records for 8 consecutive years was used in this analysis. The farms were characterized by expansion and intensification during the 8-year study period, as evidenced by the annual increase in milk fat and protein yield per cow (+15%; P o 0.001); mean annual pasture DM consumed/ha also increased linearly (+19%; P o 0.05); production costs increased linearly (Po0.01) while net profit was highly variable between years. When ranked by proportion of feed purchased, production costs increased (Po0.001) with greater reliance on bought in feed. When ranked by quartiles (highest to lowest) for 8-year average net farm profit/ha, the highest profit quartile contained, on average, smaller farms with greater technical efficiency, measured by greater milk yield per cow and grass utilisation, that when affected simultaneously by a combination of milk price reduction and adverse weather experienced a greater reduction but highest nadir and fastest recovery in farm profitability.
Brand Loyalty in Argentine Commercial Crop Seed Markets
Creators: name: Feeney, Roberto Juan
name: Harmath, Pedro
name: Clay, Pablo Mac
name: Feeney, Roberto Juan
name: Harmath, Pedro
name: Clay, Pablo Mac
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: agriculture producers
subject: brand loyalty
subject: seeds
subject: Argentina
subject: cluster analysis

description: This paper focuses on identifying and characterizing different groups of producers based on their loyalty to seed brands in Argentina. Aˆ In order to do so, we resorted to a two-step methodology: the first step identifies groups of producers in terms of their loyalty to seed brands, using a multivariate analysis. Then, to identify variables associated with brand loyalty, and have an initial group characterization, we use independency tests for qualitative variables. Our findings show that almost 44% of Argentine producers consider themselves loyal to the seed brands they purchase. These producers are willing to buy the brand regularly, in spite of price increase. By contrast, only 21% of Argentine producers consider themselves disloyal, meaning that they are willing to try other products and would change seed brand if price increased in even a small proportion. Our results have strong business implications, as they establish a clear profile of producers who are loyal to a brand in the heart of the Argentine Humid Pampa. Such findings can help ag input companies determine where to focus their attention and resources.
Characterisation by Local Means of Anisotropic Lizorkin--Triebel Spaces with Mixed Norms
Creators: name: Johnsen, Jon
name: Hansen, Sabrina Munch
name: Sickel, Winfried
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46E35

description: This is a contribution to the theory of Lizorkin--Triebel spaces having mixed Lebesgue norms and quasi-homogeneous smoothness. We discuss their characterisation in terms of general quasi-norms based on convolutions. In particular, this covers the case of local means, in Triebel's terminology. The main step is an extension of some crucial inequalities due to Rychkov to the case with mixed norms.
description: 19 pages. Final version. Appeared in Journal for analysis and its applications. (Two references are updated.)
Protracted conflicts in the EU's neighbourhood: does resilience applies?
Creators: name: Legucka, Agnieszka
name: Legieć, Arkadiusz
Publisher: name: Zenodo
Year: 2020
Subjects: EU, external actor, neighbourhood, protracted conflict, resilience, Russia

description: Protracted conflicts, which negatively affect the security environment and foster the emergence of Areas of Limited Statehood (ALS) and Contested Orders (CO), are present both in the Eastern and Southern neighbourhoods of the European Union (EU). The aim of this policy paper is to examine the EU’s conflict management approach to protracted conflicts in its neighbourhood and analyse how the resilience paradigm can mitigate the effects of ALS/CO in the European neighbourhood. The revision of EU foreign policy in the past decade has resulted in a major turn in the narrative towards resilience. Its Global Strategy refers to building state and societal resilience in its neighbourhood as one of the EU’s key strategic priorities. Can resilience policies address the protracted conflicts in the EU’s surrounding? Obstacles include the policies of other external actors, mainly Russia in the Eastern and Southern neighbourhood, but also Turkey in the Southern.
description: EU-LISTCO Policy Paper nº. 6
Perpetua Integration with FOLIO
Creators: name: Addis, Matthew
Publisher: name: figshare
Year: 2022
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications
subject: Information Systems
subject: FOS: Computer and information sciences

description: Presentation at WOLFCon2020. Texas A&M, College Station, Texas. Jan 2020.
Asteroseismic modelling of the Binary HD 176465
Creators: name: Nsamba, B.
name: Monteiro, M. J. P. F. G.
name: Campante, T. L.
name: Reese, D. R.
name: White, T. R.
name: Hernández, A. García
name: Jiang, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The detection and analysis of oscillations in binary star systems is critical in understanding stellar structure and evolution. This is partly because such systems have the same initial chemical composition and age. Solar-like oscillations have been detected by Kepler in both components of the asteroseismic binary HD 176465. We present an independent modelling of each star in this binary system. Stellar models generated using MESA (Modules for Experiments in Stellar Astrophysics) were fitted to both the observed individual frequencies and complementary spectroscopic parameters. The individual theoretical oscillation frequencies for the corresponding stellar models were obtained using GYRE as the pulsation code. A Bayesian approach was applied to find the probability distribution functions of the stellar parameters using AIMS (Asteroseismic Inference on a Massive Scale) as the optimisation code. The ages of HD 176465 A and HD 176465 B were found to be 2.81 $\pm$ 0.48 Gyr and 2.52 $\pm$ 0.80 Gyr, respectively. These results are in agreement when compared to previous studies carried out using other asteroseismic modelling techniques and gyrochronology.
Super-giant magnetoresistance at room-temperature in copper nanowires due to magnetic field modulation of potential barrier heights at nanowire-contact interfaces
Creators: name: Hossain, Md. I.
name: Maksud, M.
name: Palapati, N. K. R.
name: Subramanian, A.
name: Atulasimha, J.
name: Bandyopadhyay, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have observed a super-giant (~10,000,000%) negative magnetoresistance at 39 mT field in Cu nanowires contacted with Au contact pads. In these nanowires, potential barriers form at the two Cu/Au interfaces because of Cu oxidation that results in an ultrathin copper oxide layer forming between Cu and Au. Current flows when electrons tunnel through, and/or thermionically emit over, these barriers. A magnetic field applied transverse to the direction of current flow along the wire deflects electrons toward one edge of the wire because of the Lorentz force, causing electron accumulation at that edge and depletion at the other. This lowers the potential barrier at the accumulated edge and raises it at the depleted edge, causing a super-giant magnetoresistance at room temperature.
description: This is an author-created, un-copyedited version of an article published in Nanotechnology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.1088/0957-4484/27/30/30LT02
Production of charmed baryon $Λ_c(2940)$ by kaon-induced reaction on a proton target
Creators: name: Huang, Yin
name: He, Jun
name: Xie, Ju-Jun
name: Chen, Xurong
name: Zhang, Hong-Fei
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the possibility to study the charmed baryon $Λ_c(2940)$ by kaon-induced reaction on a proton target. By assuming the $Λ_c(2940)$ as a $pD^{*0}$ molecular state with spin-parity $J^{p}=1/2^{\pm}$, an effective Lagrangian approach was adopted to calculate the cross section, the $D^0p$ invariant mass spectrum and Dalitz plot of the $Λ(2940)$ production. The total cross section of the $K^{-}p\toΛ_c(2940)D_s^{-}$ reaction is found at an order of magnitude about 10 $μ$b. By considering the sub sequential decay $Λ_c(2940)\to{}D^0p$ with contributions from the $Λ_c(2286)$ and the $Σ_c(2455)$ as background, the $K^{-}p\to{}D_{s}^{-}D^{0}p$ reaction are studied. It is found that the $Λ_c(2940)$ is produced mainly at forward angles. The $Λ_c(2940)$ signal is predicted to be significant in the $D^0p$ invariant mass spectrum and the Dalitz plot of the $K^{-}p\to{}D_{s}^{-}D^{0}p$ reaction. The results suggest that it is promising to study the $Λ_c(2940)$ with high-energy kaon beam on a proton target in experiment.
description: 6 pages, 6 figures
The size of the Sun
Creators: name: Fardin, Marc-Antoine
name: Hautefeuille, Mathieu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Why does the Sun have a radius around 696000~km? We will see in this article that dimensional arguments can be used to understand the size of the Sun and of a few other things along the way. These arguments are not new and can be found scattered in textbooks. They are presented here in a succinct way in order to better confront the kinematic and mechanical viewpoints on size. We derive and compare a number of expressions for the size of the Sun and relate large and small scales. We hope that such presentation will be useful to students, instructors and researchers alike.
description: 8 pages, 1 figure
Minimal Entanglement Witness From Electrical Current Correlations
Creators: name: Brange, F.
name: Malkoc, O.
name: Samuelsson, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Despite great efforts, an unambiguous demonstration of entanglement of mobile electrons in solid state conductors is still lacking. Investigating theoretically a generic entangler-detector setup, we here show that a witness of entanglement between two flying electron qubits can be constructed from only two current cross correlation measurements, for any nonzero detector efficiencies and non-collinear polarization vectors. We find that all entangled pure states, but not all mixed ones, can be detected with only two measurements, except the maximally entangled states, which require three. Moreover, detector settings for optimal entanglement witnessing are presented.
description: 5 pages, 3 figs
Exploring a millennials' meaningful work views: A hospitality context
Creators: name: Vorster, Jacobus
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 350803
subject: Tourism management

description: This thesis builds on previous research that has extensively explored millennial work preferences. A review identified several gaps in the current knowledge, including how millennials reflect on work experiences, ranging from meaningless to meaningful. Millennials are a prominent generation to join the hospitality industry, and changing worker demographics compelled managers to reshape employee management strategies. The research applied a qualitative approach to gather data from industry sources and interviews with millennials. Thematic analysis of the collected data showed differences amongst millennials, suggesting that employers would benefit from not treating them as a homogeneous group. This means that the millennial participants have unique ontological views that shape their identity and resilience. The findings also demonstrated that millennials have heterogeneous epistemological interpretations that influence how they perceive work. The results point to millennials' significant role in understanding how their identity and beliefs connect to the organisation. Managers could benefit from creating a workplace where younger individuals can thrive to ensure employment stability in the regional hospitality sector. This research contributed a managerial guide that could be a learning paradigm for managers and younger employees to boost professional development and enhance mental health. Thus, contributing to inclusive and decent work strategy formulation for millennial employees in the hospitality sector could reduce regional socio-economic impacts on the East Coast of Queensland. Descriptors: Hospitality management, meaningful work, millennials, regional employment
Analysing the Links Between Index-Based Crop Insurance Adoption and Agricultural Investments in Burundi
Creators: name: Ndagijimana, Marcien
name: Kessler, Aad
name: Van Asseldonk, Marcel
name: Ndimubandi, Jean
name: Ndagijimana, Marcien
name: Kessler, Aad
name: Van Asseldonk, Marcel
name: Ndimubandi, Jean
Publisher: name: Unknown
Year: 2020
Subjects: subject: Crop Production/Industries
subject: Financial Economics
subject: index-based crop insurance
subject: adoption
subject: agricultural development
subject: smallholder farming
subject: Burundi

description: This paper analyses the links between index-based crop insurance (IBI) adoption and agricultural investments based on a cross-sectional sample of 40 crop insurance adopters and 40 non-adopters from two communes located in Gitega province in Burundi. Analysed agricultural investments variables included use of fertilizers, applying crop diversification, and use of land and crop management practices in the most recent year and in the year before IBI implementation started. The results from multivariate analysis indicate that adopters use 36% more chemical fertilizers and invest 18% more in chemical fertilizers than non-adopters (pp0.01). Adopters apply more land management practices also, in which they invest 15% more than non-adopters (pp0.01). Furthermore, adopters change crop management practices over time by 38% and their knowledge in crop management practices increased by 23% (pp0.01). Differences between adopters and non-adopters are however not statistically significant for crop diversification strategies and for the use of organic fertilizers. Hence, in order to be more effective and beneficial to farmers, other actions are also needed to encourage farmers to invest in their farm. Particularly promising in Burundi in this respect is to empower and train farmers by means of the Integrated Farm Planning approach, as well as to enhance farm inputs availability and to promote smart agri-entrepreneurial programs. In order to enhance agricultural development, the Burundi government should have a more prominent role in fostering farmers’ agricultural investments and in supporting IBI adoption.
Rapid crystallization of externally produced ions in a Penning trap
Creators: name: Murboeck, T.
name: Schmidt, S.
name: Birkl, G.
name: Noertershaeuser, W.
name: Thompson, R. C.
name: Vogel, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have studied the cooling dynamics, formation process and geometric structure of mesoscopic crystals of externally produced magnesium ions in a Penning trap. We present a cooling model and measurements for a combination of buffer gas cooling and laser cooling which has been found to reduce the ion kinetic energy by eight orders of magnitude from several hundreds of eV to micro-eV and below within seconds. With ion numbers of the order of 1000 to 100000, such cooling leads to the formation of ion Coulomb crystals which display a characteristic shell structure in agreement with theory of non-neutral plasmas. We show the production and characterization of two-species ion crystals as a means of sympathetic cooling of ions lacking a suitable laser-cooling transition.
The Area Term of the Entanglement Entropy of a Supersymmetric $O(N)$ Vector Model in Three Dimensions
Creators: name: Hung, Ling-Yan
name: Jiang, Yikun
name: Wang, Yixu
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We studied the leading area term of the entanglement entropy of $\mathcal{N}=1$ supersymmetric $O(N)$ vector model in $2+1$ dimensions close to the line of second order phase transition in the large $N$ limit. We found that the area term is independent of the varying interaction coupling along the critical line, unlike what is expected in a perturbative theory. Along the way, we studied non-commuting limits $n-1\to 0$ verses UV cutoff $r\to 0$ when evaluating the gap equation and found a match only when appropriate counter term is introduced and whose coupling is chosen to take its fixed point value. As a bonus, we also studied Fermionic Green's functions in the conical background. We made the observation of a map between the problem and the relativistic hydrogen atom.
description: 26 pages
The $β$-model for Random Graphs --- Regression, Cramér-Rao Bounds, and Hypothesis Testing
Creators: name: Wahlström, Johan
name: Skog, Isaac
name: La Rosa, Patricio S.
name: Händel, Peter
name: Nehorai, Arye
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We develop a maximum-likelihood based method for regression in a setting where the dependent variable is a random graph and covariates are available on a graph-level. The model generalizes the well-known $β$-model for random graphs by replacing the constant model parameters with regression functions. Cramér-Rao bounds are derived for the undirected $β$-model, the directed $β$-model, and the generalized $β$-model. The corresponding maximum likelihood estimators are compared to the bounds by means of simulations. Moreover, examples are given on how to use the presented maximum likelihood estimators to test for directionality and significance. Last, the applicability of the model is demonstrated using dynamic social network data describing communication among healthcare workers.
How the electromagnetic field evolves in the presence of a mobile membrane
Creators: name: Castaños, L. O.
name: Weder, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider a one-dimensional cavity composed of two perfect, fixed mirrors and a mobile membrane in between. Assuming that the membrane starts to move from rest and that the membrane moves appreciably in a time-scale much larger than the time-scale in which the cavity electromagnetic field evolves appreciably, we derive simple analytic formulas that describe to good approximation the evolution of the field and that provide an intuitive physical picture. These formulas take into account the position, velocity, and acceleration of the membrane and are valid for arbitrarily large displacements of the membrane along the cavity axis. Also, we deduce the conditions under which the field can be described to good approximation by a single instantaneous mode.
Numerical investigation of local defectiveness control of diblock copolymer patterns
Creators: name: Jeong, D.
name: Choi, Y.
name: Kim, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We numerically investigate local defectiveness control of self-assembled diblock copolymer patterns through appropriate substrate design. We use a nonlocal Cahn-Hilliard (CH) equation for the phase separation dynamics of diblock copolymers. We discretize the nonlocal CH equation by an unconditionally stable finite difference scheme on a tapered trench design and, in particular, we use Dirichlet, Neumann, and periodic boundary conditions. The value at the Dirichlet boundary comes from an energy-minimizing equilibrium lamellar profile. We solve the resulting discrete equations using a Gauss-Seidel iterative method. We perform various numerical experiments such as effects of channel width, channel length, and angle on the phase separation dynamics. The simulation results are consistent with the previous experimental observations.
description: 10 pages, 12 figures
Nonparametric covariate hypothesis tests for the cure rate in mixture cure models
Creators: name: López-Cheda, Ana
name: Jácome, M. Amalia
name: Van Keilegom, Ingrid
name: Cao, Ricardo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In lifetime data, like cancer studies, theremay be long term survivors, which lead to heavy censoring at the end of the follow-up period. Since a standard survival model is not appropriate to handle these data, a cure model is needed. In the literature, covariate hypothesis tests for cure models are limited to parametric and semiparametric methods.We fill this important gap by proposing a nonparametric covariate hypothesis test for the probability of cure in mixture cure models. A bootstrap method is proposed to approximate the null distribution of the test statistic. The procedure can be applied to any type of covariate, and could be extended to the multivariate setting. Its efficiency is evaluated in a Monte Carlo simulation study. Finally, the method is applied to a colorectal cancer dataset.
description: 17 pages, 4 figures