cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Studying the mechanical behavior of reclaimed asphalt pavements using the grid method
Creators: name: Moukahal, Ali
name: Toussaint, Evelyne
name: Morvan, Mathilde
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: The main objective of this study is to analyze the mechanical performances of several Reclaimed Asphalt Pavement (RAP). A semi-coarse asphalt concrete with a 35/50 pen bitumen is used to produce three formulations containing 0, 30 and 50% reclaimed asphalt pavements, named R0, R30 and R50, respectively. All specimens are tested under indirect tensile strength test, followed by a recovery phase. A full-field measurement method based on the grid method is used to determine and analyze both displacement and strain fields at the surface of the specimens. An analysis is proposed both at the microscopic and macroscopic scale.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
PV Ceph: Young Star Caught Speeding?
Creators: name: Goodman, Alyssa A.
name: Arce, Hector G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Three independent lines of evidence imply that the young star PV Ceph is moving at roughly 20 km/s through the interstellar medium. The first, and strongest, suggestion of motion comes from the geometry of the HH knots in the "giant" Herbig-Haro (HH) flow associated with PV Ceph. Bisectors of lines drawn between pairs of knots at nearly equal distances from PV Ceph imply an E-W motion of the source, and a plasmon model fit to the knot positions gives a good fit of 22 km/s motion for the star. The second bit of damning evidence comes from a redshifted "trail" of molecular gas, pointing in the same E-W direction implied by the HH knot geometry. The third exhibit we offer in accusing PV Ceph of speeding involves the tilt apparent in the high-velocity molecular jet now emanating from the star. This tilt is best explained if the true, current, jet direction is N-S, as it is in HST images, and the star is moving at roughly 20 km/s. Tracing the motion of PV Ceph backward in time, to the nearest cluster from which it might have been ejected, we find that it is very likely to have been thrown out of the massive star-forming cluster NGC 7023 (more than 10 pc away). We propose that PV Ceph was ejected, at a speed large enough to escape NGC 7023, at least 100,000 years ago, but that it did not enter the molecular cloud in which it now finds itself until more like 35,000 years ago. Our calculations show that the currently-observable molecular outflow associated with PV Ceph is about 10,000 years old, so that the flow has had plenty of time to form while in its current molecular cloud. But, the question of what PV Ceph was doing, and what gas/disk it took along with it in the time it was traveling through the low-density region between NGC 7023 and its current home is an open question.
description: To be published by the Astrophysical Journal. Figures 1, 6, and 7 are in gif format. See material from the AAS press conference related to this work at: http://cfa-www.harvard.edu/~agoodman/Presentations/aas04PVCeph/
The Most Important Food Labels among Online Shoppers when Shopping for Fresh Produce
Creators: name: Gumirakiza, Jean Dominique
name: VanZee, Sarah
name: Gumirakiza, Jean Dominique
name: VanZee, Sarah
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: food labels, online shoppers

description: Online shopping is increasingly becoming a common shopping venue for young generations of consumers. However, preferences for fresh produce among those who frequently shop online are still unclear. This study explains food labels that online shoppers consider most important when shopping for fresh produce. This study uses data collected from a stratified randomly selected sample of 1,205 online shoppers within the South region of the U.S. who made at least two online purchases within six months prior to participating in this study. We collected data in 2016 through the Qualtrics actively managed market research panels and those using social media such as Facebook and Twitter. Results show that 81 percent of online shoppers actually believe that food labels are very important to them. The most important label for the majority (49 percent) of those who believe so is “grown locally”. Those whose “organic” label is the most important constitute 15 percent. We found that 30 percent consider a combination of locally and organically grown fresh produce to be the most important to them. Only six percent of online shoppers have other labels they consider the most important. The most common important labels among this group include nutrition contents, price, and country of origin. This study is significant to fresh produce growers and agricultural marketers because it provides an explanation of food labels those online shoppers consider to be the most important when shopping for fresh produce. It is significant to food products regulators who are interested in enforcing regulations related to food labels. Future researchers will find this analysis useful when furthering knowledge about this increasingly popular market. online shoppers.
MONETARY INCENTIVES AND ECO-FRIENDLY RESIDENTIAL LANDSCAPE PREFERENCES FOR FLORIDA FRIENDLY LANDSCAPING
Creators: name: Zhang, Xumin
name: Khachatryan, Hayk
name: Zhang, Xumin
name: Khachatryan, Hayk
Publisher: name: Unknown
Year: 2018
Subjects: subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: sustainable landscaping, rebate, choice experiment, mixed logit in WTP space

description: To mitigate potential impacts from the increasing maintained residential landscapes to the environment, state and local governments and water management organizations are interested in policies that promote resource-efficient landscaping practices by individual homeowners. Incentives including rebates, tax returns, and low rate financing, are common monetary instruments used to promote the adoption of eco-friendly equipment or practices (e.g., water-saving appliances). However, the effects of monetary incentives on homeowners’ preferences for alternative landscapes are less understood. Using discrete choice experimentation, this study investigated homeowners’ preferences for rebate incentive programs and willingness to pay (WTP) for alternative landscape attributes. The results reveal that homeowners are willing to pay a premium for rebate programs, and that the environmental benefit information improves homeowners’ preference and WTP for alternative landscape attributes. Also, we clustered homeowners into low, medium, and high rebate preference groups, which allowed investigating the difference in WTP estimates for alternative landscape attributes. Results estimated by mixed logit in WTP space model revealed that homeowners in high rebate preference group assign higher weights to economic attributes, such as rebate and maintenance, while homeowners in the low rebate preference group give more importance to environmental friendly attributes such as smart irrigation or pollinator friendly habitat. The results offer implications for policy makers as they develop water conservation programs.
Random walks on combs
Creators: name: Durhuus, Bergfinnur
name: Jonsson, Thordur
name: Wheater, John
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We develop techniques to obtain rigorous bounds on the behaviour of random walks on combs. Using these bounds we calculate exactly the spectral dimension of random combs with infinite teeth at random positions or teeth with random but finite length. We also calculate exactly the spectral dimension of some fixed non-translationally invariant combs. We relate the spectral dimension to the critical exponent of the mass of the two-point function for random walks on random combs, and compute mean displacements as a function of walk duration. We prove that the mean first passage time is generally infinite for combs with anomalous spectral dimension.
description: 42 pages, 4 figures
Farm Management Implications of Transitioning from Conventional to Organic Production: An Application of Whole-Farm Linear Programming Model to Examine Transition Period
Creators: name: Carls, Emily
name: Griffin, Terry
name: Ibendahl, Gregory
name: Carls, Emily
name: Griffin, Terry
name: Ibendahl, Gregory
Publisher: name: Unknown
Year: 2018
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Production Economics
subject: Linear Programming
subject: Whole-Farm
subject: Transition
subject: Organic

description: Over the past decade, organic farming has gained popularity among both consumers and producers. As producers consider the decision to shift from conventional to organic production, the farm management question asks under what price ratios can farmers be enticed to endure transition periods. Current rules require at least three years of organic production before the crop can be marketed as ‘organic’. Using a whole-farm linear programming (LP) model, these ‘non-productive’ transition years were modeled to examine the conditions that entice farmers to convert from conventionally grown corn. Results assist producers in making long term decisions with the objective to maximize returns to their operations. The LP base farm was parameterized using a central Illinois farm including local information on 1) production practices for a corn and soybean rotation, 2) yield penalties for plant and harvest date combinations, and 3) fieldwork probabilities. Preliminary results indicate that given expected price ratios of conventional commodities relative to a $11/bu organic corn price, producers would be willing to begin organic production.
Dynamical twisted mass fermions
Creators: name: Farchioni, F.
name: Hofmann, P.
name: Jansen, K.
name: Montvay, I.
name: Munster, G.
name: Papinutto, M.
name: Scholz, E. E.
name: Scorzato, L.
name: Shindler, A.
name: Ukita, N.
name: Urbach, C.
name: Wenger, U.
name: Wetzorke, I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We summarize four contributions about dynamical twisted mass fermions. The resulting report covers results for N_f=2 obtained from three different gauge actions, namely the standard Wilson plaquette gauge action, the DBW2 and the tree-level Symanzik improved gauge action. In addition, first results for N_f=2+1+1 flavours of twisted mass fermions are discussed.
description: Contribution to the proceedings of Lattice 2005 resulting from three talks and one poster (Hadron spectrum and quark masses), 21 pages, 12 figures
Modelling and understanding count processes through a Markov-modulated non-homogeneous Poisson process framework
Creators: name: Avanzi, Benjamin
name: Taylor, Greg
name: Wong, Bernard
name: Xian, Alan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Risk Management (q-fin.RM)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: The Markov-modulated Poisson process is utilised for count modelling in a variety of areas such as queueing, reliability, network and insurance claims analysis. In this paper, we extend the Markov-modulated Poisson process framework through the introduction of a flexible frequency perturbation measure. This contribution enables known information of observed event arrivals to be naturally incorporated in a tractable manner, while the hidden Markov chain captures the effect of unobservable drivers of the data. In addition to increases in accuracy and interpretability, this method supplements analysis of the latent factors. Further, this procedure naturally incorporates data features such as over-dispersion and autocorrelation. Additional insights can be generated to assist analysis, including a procedure for iterative model improvement. Implementation difficulties are also addressed with a focus on dealing with large data sets, where latent models are especially advantageous due the large number of observations facilitating identification of hidden factors. Namely, computational issues such as numerical underflow and high processing cost arise in this context and in this paper, we produce procedures to overcome these problems. This modelling framework is demonstrated using a large insurance data set to illustrate theoretical, practical and computational contributions and an empirical comparison to other count models highlight the advantages of the proposed approach.
description: For simulated data sets and code, please go to https://github.com/agi-lab/reserving-MMNPP
A Generalized Dynamic Inverse AIDS Model for Fresh Fruits and Vegetables: An Application to the U.S. Bell Pepper Industry
Creators: name: Peguero, Felipe
name: Kennedy, P. Lynn
name: Zapata, Hector O.
name: Peguero, Felipe
name: Kennedy, P. Lynn
name: Zapata, Hector O.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Inverse AIDS
subject: Bell Pepper
subject: habit formation
subject: own- and cross-habit
subject: habit flexibility
subject: substitution possibilities

description: A novel approach is developed to evaluate the effect of changes in consumption habits on the price flexibilities of fresh fruits and vegetables. Thus, the traditional Inverse AIDS model is augmented with own- and cross-consumption habits. Results of the dynamic AIDS models suggest that habit formation plays a vital role in the magnitude of the own- and cross-price flexibilities. The D-IAIDS model with unrestricted own- and cross-habit formation outperformed the static version and the dynamic model developed by Holt and Goodwin (1997). Similarly, it generated, generally, smaller (bigger) own (cross) price flexibilities than the static and H&G version. For the bell pepper industry, results indicate that the U.S. consumers substitute more easily the locally produced bell pepper with imported bell pepper than the other way around. The local bell pepper is nearly two times more substitutable by imports from the ROW than by imports from Mexico. Changes in the consumption habits of bell pepper, at the aggregated level, make the demand for bell pepper (own-price flexibilities) more inflexible/elastic. Likewise, an increase of bell pepper consumption habits, at the aggregate level, increase the substitution possibilities among sources. As hypothesized, changes on the own- and cross consumption habits affect the price flexibilities in different magnitude and direction, which means that some of the aggregated habit effects are zero because the specific habit effects canceled each other. The cross-price flexibilities are affected more by changes in the habits of buying the Mexican bell pepper than changes in the habits of buying bell pepper from other sources. For the own-price flexibilities, the greatest habit effects come from changes in own consumption habits.
Tuning of LANSCE 805-MHz High-Energy Linear Accelerator with Reduced Beam Losses
Creators: name: Batygin, Y. K.
name: Shelley, F. E.
name: Watkins, H. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Suppression of beam losses is essential for successful operation of high-intensity linac. Historically, the values of the field amplitudes and phases of the side-coupled, 805-MHz LANSCE linac modules are maintained using a well-known delta-t tuning procedure. Transverse matching of the beam with accelerator is performed through adjustments of beam ellipses in 4D phase space with accelerator lattice using matching quadrupoles. Control of the beam-energy ramp along the length of a proton linear accelerator is required to improve tune of accelerator and decrease beam losses. Time-of-flight measurements of the H- beam energy are now being used to confirm and improve the overall control of the energy ramp along the linac. The time-of-flight method utilizes absolute measurements of beam energy using direct signals from beam at an oscilloscope, as well as the difference in RF phases measured as the beam passes installed delta-t pickup loops. A newly developed BPPM data acquisition system is used. Beam energy measurement along accelerator together with phase scans, klystrons output power control, and delta-t method, allow tuning of accelerator much more close to original design and reduce losses generated by linac. Details of the upgraded tuning procedure and results of tuning and operation are presented.
Scaling behavior of the dipole coupling energy in two-dimensional disordered magnetic nanostructures
Creators: name: Jensen, P. J.
name: Pastor, G. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Numerical calculations of the average dipole-coupling energy $\bar E_\mathrm{dip}$ in two-dimensional disordered magnetic nanostructures are performed as function of the particle coverage $C$. We observe that $\bar E_\mathrm{dip}$ scales as $\bar E_\mathrm{dip}\propto C^{α^*}$ with an unusually small exponent $α^*\simeq 0.8$--1.0 for coverages $C\lesssim20%$. This behavior is shown to be primarly given by the contributions of particle pairs at short distances, which is intrinsically related to the presence of an appreciable degree of disorder. The value of $α^*$ is found to be sensitive to the magnetic arrangement within the nanostructure and to the degree of disorder. For large coverages $C\gtrsim20%$ we obtain $\bar E_\mathrm{dip}\propto C^α$ with $α=3/2$, in agreement with the straighforward scaling of the dipole coupling as in a periodic particle setup. Taking into account the effect of single-particle anisotropies, we show that the scaling exponent can be used as a criterion to distinguish between weakly interacting ($α^* \simeq 1.0$) and strongly interacting ($α^* \simeq 0.8$) particle ensembles as function of coverage.
description: accepted for publication in Phys.Rev.B
Infinite-pressure phase diagram of binary mixtures of (non)additive hard disks
Creators: name: Fayen, Etienne
name: Jagannathan, Anuradha
name: Foffi, Giuseppe
name: Smallenburg, Frank
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: One versatile route to the creation of two-dimensional crystal structures on the nanometer to micrometer scale is the self-assembly of colloidal particles at an interface. Here, we explore the crystal phases that can be expected from the self-assembly of mixtures of spherical particles of two different sizes, which we map to (additive or non-additive) hard-disk mixtures. We map out the infinite-pressure phase diagram for these mixtures, using Floppy Box Monte Carlo simulations to systematically sample candidate crystal structures with up to 12 disks in the unit cell. As a function of the size ratio and number ratio of the two species of particles, we find a rich variety of periodic crystal structures. Additionally, we identify random tiling regions to predict random tiling quasicrystal stability ranges. Increasing non-additivity both gives rise to additional crystal phases and broadens the stability regime for crystal structures involving a large number of large-small contacts, including random tilings. Our results provide useful guidelines for controlling the self-assembly of colloidal particles at interfaces.
Etude comparative du confinement du béton de granulats recyclés par des matériaux composites : efficacité des bioressourcés
Creators: name: GHORBEL, Elhem
name: NOUALI, Mohammed
name: HASNAOUI, Abdelaziz
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: L’objectif de cette travail est d’étudier la possibilité de remplacer un composite à matrice époxyde et renforts de carbone (CFC) par un composite à matrice bio ressourcée renforcée de fibres de lin (CFL) pour le confinement de bétons à granulats recyclés. Quatre bétons avec différents taux de substitution massique de granulats naturels par des granulats issus de la démolition d’ouvrages en béton ont été considérés. La comparaison entre l’efficacité des deux types de composites unidirectionnels (CFC et CFL ) a été effectuée à travers des essais à la compression d’éprouvettes cylindriques à 28 jours. On montre que le confinement des bétons recyclés par le CFL est aussi efficace que celui obtenu en utilisant CFC. Un modèle analytique pour le dimensionnement structurel est proposé.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
title: Behavioural and chemical ecology of Meligethes aeneus: effects of non-host plant volatiles
Creators: name: Mauchline, Alice Louise
Publisher: name: The Open University
Year: 2003

description: The research in this thesis aims to develop an understanding of the olfactory aspects of host-location behaviour in the pest beetle Meligethes aeneus Fab., and to investigate the use of non-host plant volatiles as ‘repellents’ within a push-pull system of pest control for oilseed rape, which is being developed at Rothamsted Research. Novel laboratory bioassays were developed and used to establish that essential oils from non-host plants reduce M. aeneus colonisation of oilseed rape flowers. Lavender essential oil had the greatest negative effect on beetle numbers on rapeseed flowers. This was further examined using a 4-arm olfactometer, and it was established that lavender oil alone elicits avoidance behaviours in M. aeneus, in addition to overriding their attraction to host-plant volatiles. The chemical basis of this effect was investigated using gas chromatography linked with electroantennography and mass spectrometry and the results are discussed in relation to the ecology of the insect. It was established with semi-field studies that lavender essential oil reduces landing of M. aeneus, but does not affect the post-alighting behavioural process of host acceptance. These results are discussed in terms of behavioural plasticity in the importance of olfactory cues for host location such that, on alighting on a plant, the beetle may switch behavioural modes or may require a different suite of olfactory cues during host-acceptance behaviour. Field studies showed that lavender oil is effective at reducing natural movements of M. aeneus into plots of oilseed rape. Critically, the main reduction in infestation occurred during the vulnerable green-bud stage and the implications for optimal timing of repellent application during immigration are discussed. Flight patterns were further investigated using a novel combination of vertical-looking radar, suction traps and field counts to identify important meteorological and ecological factors. The thesis presents an experimental progression in scale from the laboratory, to semi-field and field scale, for research into the effect of semiochemicals. The application and efficacy of using lavender or other non-host plant odours within a push-pull system of pest management for M. aeneus in oilseed rape are discussed.
Caractérisation mécanique des suspensions minérales concentrées
Creators: name: Chen, Chuan
name: Perrot, Arnaud
name: Rangeard, Damien
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: L’impression 3D par extrusion-dépôt des matériaux à base minérale (argile, ciment) a relancé l’intérêt pour le comportement mécanique des suspensions minérales fermes à l’état frais. Une des techniques d’impression consiste à utiliser un matériau plastique ferme (technique dite de la brique infinie) présentant un seuil de cisaillement de l’ordre de 10 kPa et une fraction granulaire élevée. Afin de pouvoir s’assurer de la bonne extrusion du matériau et de la stabilité de la structure durant son impression, il convient d’étudier finement le comportement mécanique des pâtes cimentaires et argileuses fermes en mettant en évidence la contribution du frottement interne du matériau. Pour cela, des essais de cisaillement direct couplés à des essais triaxiaux permettent de mettre en évidence une loi de comportement de type Coulomb ainsi qu’un vieillissement mécanique du matériau au cours du temps.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
Approche méthodologique dédiée à l’adaptation des infrastructures au changement climatique – Cas des infrastructures routières et ferroviaires
Creators: name: Gonzva, Michaël
name: Selouane, Karim
name: Soto, Didier
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: Les démarches de diagnostic de la vulnérabilité sont multiples mais sont généralement inefficientes du fait de leur considération aléa-centrée, réduisant la vulnérabilité à la seule présence/absence d’enjeux dans un périmètre d’exposition aux aléas. La méthodologie initiée par RESALLIENCE se propose de dépasser cette approche : elle permet une modélisation de la vulnérabilité et de la résilience fonctionnelle d’une infrastructure de génie civil. Elle considère cet ouvrage à la fois comme un facteur pouvant aggraver la vulnérabilité intrinsèque des territoires qu’elle connecte entre eux, et aussi comme un vecteur de leur résilience en limitant la diffusion de la vulnérabilité sur les territoires environnants de l’infrastructure. La méthodologie développée et appliquée opérationnellement se fonde sur l’utilisation d’un Système d’Information Géographique comme outil d’aide à la décision en matière de diagnostic vis-à-vis d’aléas climatique, dans un contexte de changement climatique.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
Ion-Ion Correlation Effect on the Neutrino-Nucleus Scattering in Supernova Cores
Creators: name: Itoh, Naoki
name: Asahara, Ryohei
name: Tomizawa, Nami
name: Wanajo, Shinya
name: Nozawa, Satoshi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the ion-ion correlation effect on the neutrino-nucleus scattering in supernova cores, which is an important opacity source for the neutrinos and plays a vital role in the supernova explosion. In order to calculate the ion-ion correlation effect we use the results of the improved hypernetted-chain method calculations of the classical one-component plasma. As in the preceding studies on this effect, we find a dramatic decrease of the effective neutrino-nucleus scattering cross section for relatively low energy neutrinos with E < 20MeV. As a matter of fact, our calculation shows a much more dramatic reduction of the effective neutrino-nucleus scattering cross section for the low energy neutrinos with E < 10MeV than the results of Horowitz. Therefore, the ion-ion correlation effect will be more important than has hitherto been recognized. We present an accurate analytic fitting formula that summarizes our numerical results. This fitting formula will facilitate the application of the present results to the supernova explosion simulations.
description: 10 pages, 2 figures, 1 subroutine, published in ApJ 611, 1041-1044 (2004)
$CP$ asymmetry in the angular distribution of $τ\to K_Sπν_τ$ decays
Creators: name: Chen, Feng-Zhi
name: Li, Xin-Qiang
name: Yang, Ya-Dong
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this work, we study the $CP$ asymmetry in the angular distribution of $τ\to K_Sπν_τ$ decays, taking into account the known $CP$ violation in $K^0-\bar{K}^0$ mixing. It is pointed out for the first time that, once the well-measured $CP$ violation in the neutral kaon system is invoked, a non-zero $CP$ asymmetry would appear in the angular observable of the decays considered, even within the Standard Model. By employing the reciprocal basis, which is most convenient when a $K_{S(L)}$ is involved in the final state, the $CP$-violating angular observable is derived to be two times the product of the time-dependent $CP$ asymmetry in $K\to π^+π^-$ and the mean value of the angular distribution in $τ^\pm\to K^0(\bar{K}^0)π^\pm\barν_τ(ν_τ)$ decays. Compared with the Belle results measured in four different bins of the $Kπ$ invariant mass, our predictions lie within the margins of these measurements, except for a $1.7~σ$ deviation for the lowest mass bin. While being below the current Belle detection sensitivity that is of $\mathcal{O}(10^{-3})$, our predictions are expected to be detectable at the Belle II experiment, where $\sqrt{70}$ times more sensitive results will be obtained with a $50~\text{ab}^{-1}$ data sample.
description: 23 pages, 3 figures, and 2 tables; minor corrections, final version published in the journal
Résistance au cisaillement des joints de colle de Bois Lamellé Collé d’origine tropicale
Creators: name: BIDZO, Cédric Horphe NDONG
name: Pitti, Ronstand Moutou
name: Ikogou, Samuel
name: Kaiser, Beat
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: Ce travail présente une étude sur l’intégrité des joints de colle de trois essences de bois tropicaux, notamment Staustia kamernesis (Niové), Dacryodes buettneri (Ozigo) et Pterocarpus osun (Padouk). Les joints sont collés avec un adhésif au Phénol Résorcinol Formaldéhyde (PRF). Les éprouvettes munies de différents joints de colle, ont été prélevées sur des poutres en Bois Lamellés Collé (BLC) combinées. Des essais de cisaillement par compression ont été effectués sur les éprouvettes à 12% d’humidité, puis sur des éprouvettes humidifiées (18%). L’objectif est de d’évaluer l’influence de l’humidité sur la résistance des joints de colle mixte. Les résultats ont montré d’une part, que la résistance des joints de colle respectait les exigences structurales lorsqu’ils sont soumis à un effort de cisaillement, d’autre part on note une influence significative sur la résistance lorsque les éprouvettes sont humidifiées.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
Evaporation Induced Rayleigh-Taylor Instabilities in Polymer Solutions
Creators: name: Mossige, E. J.
name: Suja, V. Chandran
name: Islamov, M.
name: Wheeler, S. F.
name: Fuller, G. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Understanding the mechanics of detrimental convective instabilities in drying polymer solutions is crucial in many applications such as the production of film coatings. It is well known that solvent evaporation in polymer solutions can lead to Rayleigh-Bénard or Marangoni-type instabilities. Here we reveal another mechanism, namely that evaporation can cause the interface to display Rayleigh-Taylor instabilities due to the build-up of a dense layer at the air-liquid interface. We study experimentally the onset time ($t_p$) of the instability as a function of the macroscopic properties of aqueous polymer solutions, which we tune by varying the polymer concentration ($c_0$), molecular weight and polymer type. In dilute solutions, $t_p$ shows two limiting behaviors depending on the polymer diffusivity. For high diffusivity polymers (low molecular weight), the pluming time scales as $c_0^{-2/3}$. This result agrees with previous studies on gravitational instabilities in miscible systems where diffusion stabilizes the system. On the other hand, in low diffusivity polymers the pluming time scales as $c_0^{-1}$. The stabilizing effect of an effective interfacial tension, similar to those in immiscible systems, explains this strong concentration dependence. Above a critical concentration, $\hat{c}$, viscosity delays the growth of the instability, allowing time for diffusion to act as the dominant stabilizing mechanism. This results in $t_p$ scaling as $(ν/c_0)^{2/3}$.
description: Accepted for publication in Philosophical Transaction A
Descriptions of membrane mechanics from microscopic and effective two-dimensional perspectives
Creators: name: Lomholt, Michael A.
name: Miao, Ling
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Mechanics of fluid membranes may be described in terms of the concepts of mechanical deformations and stresses, or in terms of mechanical free-energy functions. In this paper, each of the two descriptions is developed by viewing a membrane from two perspectives: a microscopic perspective, in which the membrane appears as a thin layer of finite thickness and with highly inhomogeneous material and force distributions in its transverse direction, and an effective, two-dimensional perspective, in which the membrane is treated as an infinitely thin surface, with effective material and mechanical properties. A connection between these two perspectives is then established. Moreover, the functional dependence of the variation in the mechanical free energy of the membrane on its mechanical deformations is first studied in the microscopic perspective. The result is then used to examine to what extent different, effective mechanical stresses and forces can be derived from a given, effective functional of the mechanical free energy.
description: 37 pages, 3 figures, minor changes
Supersymmetry versus Integrability in two-dimensional Classical Mechanics
Creators: name: Izquierdo, A. Alonso
name: León, M. A. González
name: Guilarte, J. Mateos
name: Mayado, M. de la Torre
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Supersymmetric extensions of Hamilton-Jacobi separable Liouville mechanical systems with two degrees of freedom are defined. It is shown that supersymmetry can be implemented in this type of systems in two independent ways. The structure of the constants of motion is unveiled and the entanglement between integrability and supersymmetry is explored.
description: 28 pages, Added references
An Investigation into Sustainable Water Consumption
Creators: name: Kanda, Kultar
name: Brar, Terry
name: Ho, Ronald
name: Yeh, Nick
Publisher: name: The University of British Columbia
Year: 2011

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
PRICE LEADERSHIP IN THE SOUTH AFRICAN CARBOHYDRATE MARKET
Prysleierskap in die Suid-Afrikaanse koolhidraatmark
Creators: name: Sartorius Von Bach, Helmke
name: Van Zyl, Johan
name: Vivier, Leon
name: Millard, Solly
name: Sartorius Von Bach, Helmke
name: Van Zyl, Johan
name: Vivier, Leon
name: Millard, Solly
Publisher: name: Unknown
Year: 1992
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business

description: Price determination is of vital concern for producers and distributors, and is an important element for the buying public. The effective functioning of the SouthAfrican carbohydrate marketing system is analysed by means of price leadership, a useful tool for reviewing price control issues. Price leadership depends on removing the deterministic nature of time-series, filtering and causality determination. The national carbohydrate market shows strong mutual dependence, with white bread the price leader. The high mutual dependence and cross-price effects show that price intervention reduce market performance.
Marangoni instability in a viscoelastic binary film with cross-diffusive effect
Creators: name: Sarma, Rajkumar
name: Mondal, Pranab Kumar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The viscoelastic fluids are usually the blends of a polymeric solute and a Newtonian solvent. In the presence of a temperature gradient, stratification of these solutes can take place via the Soret effect. Here, we investigate the classical Marangoni instability problem for a thin viscoelastic film considering this binary aspect of the fluid. The film, bounded above by a deformable free surface, is subjected to heating from below by a solid substrate. Linear stability analysis performed numerically for perturbations of finite wavelength (short-wave perturbations) reveals that both monotonic and oscillatory instabilities can emerge in this system. The interaction between the thermocapillary and solutocapillary forces in the presence of Soret diffusion is found to give rise to two different oscillatory instabilities, of which one mode was overlooked previously, even for the Newtonian binary mixtures. As a principal result of this work, we provide a complete picture of the susceptibility to different instability modes based on the model parameter values. Finally, an approximate model is developed under the framework of long-wave analysis, which can qualitatively depict the stability behaviour of the system without numerically solving the problem.
description: 40 Pages, 17 Figures
Stabilité dimensionnelle de mortiers géopolymères
Creators: name: Phelipot-Mardelé, Annabelle
name: Le Talludec, Corentin
name: Lanos, Christophe
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: Différentes formulations de mortiers de Na-géopolymères composés de silicates de sodium, de métakaolin, de fumée de silice couplés à des charges minérales sont étudiées. Les pertes de masses et les retraits durant les phases de séchage et de stabilisation puis sous l’effet d’une exposition aux hautes températures sont mesurés. L’interprétation des résultats permet d’identifier les mécanismes de couplage entre retrait et perte de masse lors du séchage. Le retrait thermique induit lors d’exposition à des températures allant jusqu’à 950°C apparaît également coordonné aux évolutions de masse qui physiquement restent liées à des départs de molécules d’eau. L’effet des conditions de géopolymérisation du liant est mis en évidence. L’adaptation des formulations à un usage aux hautes températures est discutée.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
AGRICULTURAL COMPARATIVE ADVANTAGES IN DEVELOPMENT REGION G OF SOUTH AFRICA: AN APPLICATION OF A REGIONAL LINEAR PROGRAMMING MODEL
Creators: name: Meyer, N. G.
name: Van Zyl, J.
name: Meyer, N. G.
name: Van Zyl, J.
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Research Methods/ Statistical Methods

description: The purpose of this article is to model the agricultural production sector of Region G to determine whether Development Region G of South Africa has comparative advantages with respect to the production of certain agricultural commodities. The analysis is based on an application of an advanced regional linear programming model. With the present marketing system production of fruit and vegetables, livestock and livestock products, and animal feeds, e.g. soya beans, should be expanded. On the other hand, production of staples, e.g. maize and wheat, and other summer cash crops should be scaled down. Under a free market system there also seems to be, apart from the commodities already mentioned above, a comparative advantage for specifically dryland staple food production.
Etude de la séparation de phases du bitume modifié par les déchets plastiques
Creators: name: NOUALI, Mohammed
name: GHORBEL, Elhem
name: DERRICHE, Zohra
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: On a étudié dans ce travail, la stabilité au stockage à hautes températures du bitume modifié par les déchets de sachets plastique. Deux modes de stockage ont été utilisés, stockage sans agitation conformément à la norme et stockage avec agitation continue qui reflète plus fidèlement le stockage des bitumes dans la pratique. Des essais physiques et rhéologiques ont été utilisés pour évaluer la stabilité du bitume-plastique. Les résultats ont montré qu’il y a une séparation totale entre le bitume et les particules de plastique durant le stockage statique alors que ces dernières restent parfaitement distribuées durant le stockage sous agitation continue. L’étude de la stabilité au stockage à hautes températures du bitume-plastique a permis de démontrer que l’essai standardisé utilisé pour mesurer la stabilité au stockage à hautes températures des bitumes modifiés « exagère » la séparation de phases du bitume-plastique et donc la mesure de l’instabilité du liant.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
AGRICULTURAL COMMODITY FUTURES MARKETS IN SOUTH AFRICA
Creators: name: Frank, Deon
name: Frank, Deon
Publisher: name: Unknown
Year: 1992
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business

description: The introduction of an agricultural commodity futures market in South Africa is considered. A futures market can be used by both buyers and sellers of a commodity to significantly reduce price uncertainty. Theoretical arguments are used to show that the futures and cash prices should be very close, if not equal, at expiration and that the current futures price should be a good forecast of the cash price at expiration. Speculators play an important role by providing liquidity to the futures market, but it is possible that they can distort prices. For a futures market to be a success in South Africa there needs to be a free cash market, adequate liquidity and well informed traders. A computer-based trading system is an improvement on the traditional floor trading system mainly because prices are more likely to reflect the underlying supply and demand conditions
Optimisation de l’EC2 pour la prédiction du fluage des bétons de granulats recyclés
Creators: name: Peña, Pablo
name: Ghorbel, Elhem
name: Wardeh, George
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: L’Eurocode 2 (EC2) propose un modèle empirique pour prédire le fluage total du béton. Les propriétés de fluage sont généralement déterminées en mesurant le coefficient de fluage, noté Phi, en fonction du temps, t, et de l’âge du béton au moment du chargement, t0. Ce coefficient est le produit d’un coefficient de fluage conventionnel, Phi-0, par une fonction temporelle de type puissance. Le modèle dépend également de la géométrie de l’élément, du type de ciment, l’humidité relative ainsi que de la résistance moyenne à la compression à l’âge de 28 jours. Le principal objectif du présent travail est de proposer une modification de l’expression de l’EC2 afin d’améliorer sa prédiction de fluage pour les bétons des granulats naturels et aussi son extension pour estimer le fluage du béton des granulats recyclés. Pour atteindre cet objectif, une base de donnés constituée des résultats expérimentaux disponibles dans les références bibliographiques a été créé. La comparaison entre les valeurs expérimentales en termes du coefficient de fluage conventionnel, Phi-0 , coefficient que dépend de l’HR, h0 et fcm, βH, et de la puissance de la fonction du vieillissement, α, montre une dispersion importante. Pour la solution de cette dispersion, il est nécessaire l’introduction des termes correctifs qui tiennent en compte la proportion des granulats et le taux de substitution des granulats recyclés dans la formulation.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
THE EFFECT OF LAND TENURE ON COMMERCIAL LIVESTOCK PRODUCTION IN THE PEDDIE COASTAL AREA OF THE CISKEI
Die effek van grondbesitregte op kommersiele lewendehaweproduksie in die Peddie kusstreek van die Ciskei
Creators: name: Anim, F. D. K.
name: Lyne, M. C.
name: Anim, F. D. K.
name: Lyne, M. C.
Publisher: name: Unknown
Year: 1992
Subjects: Land Economics/Use
Livestock Production/Industries

description: Economic theory suggests that privatization of open access grazing land will reduce stocking rates and promote investment in pasture quality. In this study, sample data drawn from livestock farmers in the Peddie coastal area of the Ciskei are analysed to test the relationship between land tenure arrangements, cattle sales and veld quality. The findings support the contention that private access to grazing land results in better veld quality, increased sales, and commercial livestock production. It is concluded that private access to grazing has a significant positive effect on commercial livestock production.
Integrationspolitik im ExpertInnencheck : Grüne überzeugen, FPÖ enttäuscht
Creators: name: Lechner, Angelika
Publisher: name: Eurac Research
Year: 2024

description: Es kursieren viele Mythen und Unwahrheiten rund um das Thema Migration. Obwohl sich renommierte [MigrationswissenschaftlerInnen](https://www.falter.at/falter/radio/66ec1df6b26c8472eff19955/migration-pladoyer-fur-menschlichkeit-im-eigeninteresse-1224) medienwirksam, aufklärend [in Podcasts](https://www.falter.at/falter/radio/66b377f85063c053dfa579d8/migration-welche-antworten-hat-europa-herr-knaus-1200) und [Büchern](https://www.fischerverlage.de/buch/hein-de-haas-migration-9783103975345) äußern, ist weitgehend unklar, inwieweit sich Aussagen bezüglich Migration und Integration rechter oder linker bzw. populistischer oder nicht-populistischer Parteien auf Fakten stützen oder nicht.
Additional file 1 of Practice, perceived barriers and motivating factors to medical-incident reporting: a cross-section survey of health care providers at Mbarara regional referral hospital, southwestern Uganda
Creators: name: Turyahabwe Naome
name: Mwesigwa James
name: Atuhairwe Christine
name: Taremwa Ivan Mugisha
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Questionnaire.
Fixation du CO2 par carbonatation de granulats recyclés compactés
Creators: name: HOU, Yunlu
name: MAHIEUX, Pierre-Yves
name: LUX, Jérôme
name: TURCRY, Philippe
name: AÏT-MOKHTAR, Abdelkarim
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: Les granulats recyclés sont des matériaux de construction obtenus par concassage et criblage des déchets inertes du BTP sur des plateformes de recyclage. Ce sont des matériaux complexes et majoritairement composés de matière minérale, telles que les bétons de démolition. En raison de cette spécificité cimentaire, ces travaux de recherche se sont focalisés sur la capacité de fixation du CO2 par carbonatation minérale de sable recyclé compacté. Des éprouvettes cylindriques ont été placées dans quatre enceintes à humidité relative contrôlée, incluant une condition de carbonatation accélérée (53±5% HR, 95±5% HR, 65±5% HR et 65±5% HR avec 3% de CO2). Les résultats montrent que ce sable recyclé compacté fixe jusqu’à 58 kgCO2 par m3 de sable recyclé compacté en 1 an et que cette capacité de fixation est d’autant plus importante que l’humidité relative est faible ou que la concentration en CO2 est élevée. Les granulats de béton contenus dans les granulats recyclés sont donc encore en mesure de se carbonater même s’ils sont issus de la démolition.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech