cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalization performance of deep models for assessing echo image quality in different ultrasound machines
Creators: name: Fung, Andrea
Publisher: name: University of British Columbia
Year: 2021

description: Background: In comparison with other advanced imaging techniques (e.g. computed tomography, or magnetic resonance imaging), cardiac ultrasound interpretation is less accurate with higher prevalence of low quality images. The problem can be more severe when non-experts use point-of-care ultrasound (PoCUS) to acquire and interpret images. Artificial intelligence (AI) models that provide image quality rating and feedback can help novice users to identify suboptimal image quality in real-time. However, such models have only been validated on cart-based ultrasound systems typically used in echocardiography labs. In this study, we examined the performance of a AI deep learning image quality feedback model trained on cart-based ultrasound systems when applied to PoCUS devices. Methods: We enrolled 107 unselected patients from an out-patient echocardiography facility at the Vancouver General Hospital. A single sonographer obtained 9 standard image views with a cart-based system and with a hand-held PoCUS device. All the images obtained were assigned image quality ratings by the AI model and by 2 expert physician echocardiographers. Image quality was graded based on percent endocardial border visualization (poor quality = 0-25%; fair quality = 26-50%; good quality = 51-75%; excellent quality = 76-100%). Statistical methods were used to compare the model’s classification performance on cart-based vs. PoCUS data with respect to echocardiographer opinion: percent agreement, weighted kappa, positive predictive value (precision), negative predictive value, sensitivity (recall), and specificity. Results: Percent agreement and weighted kappa were comparable on PoCUS and cart-based ultrasound clips. Overall, the model’s positive predictive value, negative predictive value, sensitivity, and specificity were neither better nor worse on either machine type. Conclusions: We conclude that AI based image quality feedback models designed for cart-based systems can perform well when applied to hand-held PoCUS devices. Researchers may consider using cart-based ultrasound data to train models for PoCUS to overcome data collection and labelling barriers.
The Genetic Engineering of Food and the Failure of Science – Part 1: The Development of a Flawed Enterprise
Creators: name: Lotter, Don
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2009

description: A major conflict has developed in science and society between promoters and opponents of transgenic foods. Food, feed, and fiber products derived from transgenic agricultural crops are presented here as a different case from bacterial, industrial, and pharmaceutical crop transgenics and should be parsed from the larger transgenics industry for comprehensive re-evaluation and market roll-back. Reviewed is the development of the crop transgenics industry; the early influence of the biotechnology industry over the US federal regulatory agencies in the context of the development of minimal regulation; the basic technology of plant transgenics; the main transgenic crops, traits, and producing countries; consumer resistance to transgenic foods; industry problems with shrinking investments; the worldwide promotion of transgenic crops; and ecological issues of transgenic crops. Flaws in the one gene–one protein model, the foundation of transgenics, are reviewed in the context of the recent and ongoing restructuring of the science of genetics. Research on the mutational consequences of plant transgenics and its phenotypic ramifications such as allergens and novel proteins is discussed. Major research findings and ‘red flag’ incidents in the history of transgenic foods and feeds are reviewed that reflect the flaws in the genetic foundations of transgenics.
description: The International Journal of Sociology of Agriculture and Food, Vol. 16 No. 1 (2009)
An X-ray Selected Galaxy Cluster in the Lockman Hole at Redshift 1.753
Creators: name: Henry, J. Patrick
name: Salvato, Mara
name: Finoguenov, Alexis
name: Bouche, Nicolas
name: Brunner, Hermann
name: Burwitz, Vadim
name: Buschkamp, Peter
name: Egami, Eiichi
name: Foerster-Schreiber, Natasha
name: Fotopoulou, Sotiria
name: Genzel, Reinhard
name: Hassinger, Guenther
name: Mainieri, Vincenzo
name: Rovilos, Manolis
name: Szokoly, Gyula
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have discovered an X-ray selected galaxy cluster with a spectroscopic redshift of 1.753. The redshift is of the brightest cluster galaxy (BCG), which is coincident with the peak of the X-ray surface brightness. We also have concordant photometric redshifts for seven additional candidate cluster members. The X-ray luminosity of the cluster is 3.68 +/- 0.70 x 10^43 erg s^-1 in the 0.1 - 2.4 keV band. The optical/IR properties of the BCG imply its formation redshift was ~5 if its stars formed in a short burst. This result continues the trend from lower redshift in which the observed properties of BCGs are most simply explained by a monolithic collapse at very high redshift instead of the theoretically preferred gradual hierarchical assembly at later times. However the models corresponding to different formation redshifts are more clearly separated as our observation epoch approaches the galaxy formation epoch. Although our infrared photometry is not deep enough to define a red sequence, we do identify a few galaxies at the cluster redshift that have the expected red sequence photometric properties.
description: 18 pages, 8 figures, accepted for publication in the Astrophysical Journal
MATHICSE Technical Report : Function integration, reconstruction and approximation using rank-1 lattices
Creators: name: Kuo, Frances
name: Migliorati, Giovanni
name: Nobile, Fabio
name: Nuyens, Dirk
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We consider rank-1 lattices for integration and reconstruction of functions with series expansion supported on a finite index set. We explore the connection between the periodic Fourier space and the non-periodic cosine space and Chebyshev space, via tent transform and then cosine transform, to transfer known results from the periodic setting into new insights for the non-periodic settings. Fast discrete cosine transform can be applied for the reconstruction phase. To reduce the size of the auxiliary index set in the associated component-by-component (CBC) construction for the lattice generating vectors, we work with a bi-orthonormal set of basis functions, leading to three methods for function reconstruction in the non-periodic settings. We provide new theory and efficient algorithmic strategies for the CBC construction. We also interpret our results in the context of general function approximation and discrete least-squares approximation.
The Water Isn’t Safe: The Dismal State of Texas Drinking Water Regulation
Creators: name: Nguyen, Grace
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Signature Course Information Literacy Award
water
Texas
Water, Ethics, Law, and Policy
School of Law

description: This project won first place in the 2018 Signature Course Information Literacy Award. The award recognizes exemplary student work that achieves the learning outcomes of the Signature Course information literacy requirement, that students will be able to create and execute a research strategy, critically evaluate information, and navigate the scholarly conversation. The paper was nominated by Jane Cohen from the School of Law after it was submitted in her Fall 2018 Signature Course “Water, Ethics, Law, and Policy.” The project was chosen for its exceptional use of sources from government documents to journalism to build a compelling argument. Dr. Cohen supported this project by saying "Grace began this project innocent of all knowledge about this situation, other than her rural Texan grandmother's sadness over the brief longevity of her pets. She built a remarkably sophisticated understanding of the regulatory environment literally hand-over-hand, with a superb research effort all her own.
Anomalous WWgamma couplings in gamma-proton collision at the LHC
Creators: name: Sahin, I.
name: Billur, A. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the potential of pp-> p gamma p -> p W q X reaction to probe anomalous WWgamma couplings at the LHC. We find 95% confidence level bounds on the anomalous coupling parameters with various values of the integrated luminosity. We show that the reaction pp -> p gamma p -> p W q X at the LHC highly improve the current limits.
description: 12 pages,3 figures
MATHICSE Technical Report : Sparse Polynomial Chaos expansions using Variational Relevance Vector Machines
Creators: name: Tsilifis, Panagiotis
name: Papaioannou, Iason
name: Straub, Daniel
name: Nobile, Fabio
Publisher: name: Écublens, MATHICSE
Year: 2020

description: The challenges for non-intrusive methods for Polynomial Chaos modeling lie in the computational efficiency and accuracy under a limited number of model simulations. These challenges can be addressed by enforcing sparsity in the series representation through retaining only the most important basis terms. In this work, we present a novel sparse Bayesian learning technique for obtaining sparse Polynomial Chaos expansions which is based on a Relevance Vector Machine model and is trained using Variational Inference. The methodology shows great potential in high-dimensional data-driven settings using relatively few data points and achieves user-controlled sparse levels that are comparable to other methods such as compressive sensing. The proposed approach is illustrated on two numerical examples, a synthetic response function that is explored for validation purposes and a low-carbon steel plate with random Young's modulus and random loading, which is modeled by stochastic finite element with 38 input random variables.
Consolidation in the North American Organic Food Processing Sector, 1997 to 2007
Creators: name: H. Howard, Philip
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2009

description: Significant structural changes have accompanied the phase-in of a national organic standard in the United States over the last decade. The organic processing sector was particularly amenable to change due to its location downstream from production, where concentrations of capital encounter fewer biological barriers, and currently benefit from greater economies of scale. Consolidation of this emerging industry in the US and neighboring Canada is characterized visually using information graphics. These graphics provide a broad overview of the current industry structure by depicting the processes of horizontal integration and concentric diversification. Horizontal integration has occurred through acquisitions and strategic alliances, although these transactions are often hidden from consumers through ‘stealth’ ownership. Concentric diversification has occurred through the introduction of organic versions of mainstream brands, and the introduction of private label organics. These trends are expected to continue, and strongly support the conventionalization thesis as it applies to off-farm segments of the organic food industry.
description: The International Journal of Sociology of Agriculture and Food, Vol. 16 No. 1 (2009)
title: Remarks Prepared for Delivery by Deputy Secretary Jim Burnley, Kiwanis Club Luncheon
Creators: name: Burnley, Jim
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1985
Subjects: classificationCode: https://trt.trb.org/term/90593
subject: Safety and security
classificationCode: https://trt.trb.org/term/88217
subject: International travel
classificationCode: https://trt.trb.org/term/88212
subject: Air travel
classificationCode: https://trt.trb.org/term/90950
subject: Terrorism
classificationCode: https://trt.trb.org/term/90928
subject: Prevention
classificationCode: https://trt.trb.org/term/88926
subject: Deregulation
classificationCode: https://trt.trb.org/term/91993
subject: Motor carriers
classificationCode: https://trt.trb.org/term/108740
subject: Railroad operations
classificationCode: https://trt.trb.org/term/91423
subject: Economic factors

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/57
description: Remarks prepared for delivery by Deputy Secretary Jim Burnley at a Kiwanis Club luncheon in Greensboro, N.C. on June 27, 1985.
Agricultural Explosion in Brazil: Exploring the Impacts of the Brazilian Agricultural Development over the Amazon
Creators: name: Rodrigues, Tiago
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2009

description: Agriculture has always been an important economic activity in Brazil and is now among the most dynamic sectors in the Brazilian economy. However, a lot of controversy has risen over the impact of such phenomenon on the Brazilian Amazon. This paper offers a critical overview of the literature on the expansion of the Brazilian agricultural frontier, demonstrating its impact on the degradation of the Amazon forest based on secondary data and institutional document sources. An overview of the historical development of the Brazilian Amazon basin is conducted by looking in a critical way at some implications of such a phenomenon. Rather then commenting on an empirical study, the objective of this paper is to present a theoretical analysis of the models of development adopted for the Amazon region in Brazil, showing the relative importance of different variables and factors to the depletion of that ecosystem. It is argued that although the figures show net benefit to the Brazilian economy, the prosperity which is advocated to be brought by the agricultural explosion favors mostly established elites and vested international interests, which have contributed to the degradation of the Amazon forest for a long time. It is suggested that the focus on Brazilian agricultural growth as the main driver of deforestation of the Amazon has omitted the historical links to the deforestation problem and the related role of effective international cooperation.
description: The International Journal of Sociology of Agriculture and Food, Vol. 16 No. 1 (2009)
Spontaneous breaking of spatial and spin symmetry in spinor condensates
Creators: name: Scherer, M.
name: Lücke, B.
name: Gebreyesus, G.
name: Topic, O.
name: Deuretzbacher, F.
name: Ertmer, W.
name: Santos, L.
name: Arlt, J. J.
name: Klempt, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Parametric amplification of quantum fluctuations constitutes a fundamental mechanism for spontaneous symmetry breaking. In our experiments, a spinor condensate acts as a parametric amplifier of spin modes, resulting in a twofold spontaneous breaking of spatial and spin symmetry in the amplified clouds. Our experiments permit a precise analysis of the amplification in specific spatial Bessel-like modes, allowing for the detailed understanding of the double symmetry breaking. On resonances that create vortex-antivortex superpositions, we show that the cylindrical spatial symmetry is spontaneously broken, but phase squeezing prevents spin-symmetry breaking. If, however, nondegenerate spin modes contribute to the amplification, quantum interferences lead to spin-dependent density profiles and hence spontaneously-formed patterns in the longitudinal magnetization.
description: 5 pages, 4 figures
Worlds of Food: Place, Power, and Provenance in the Food Chain, by Kevin Morgan, Terry Marsden and Jonathan Murdoch
Creators: name: Lang, Tim
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: This article does not have an abstract.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
Mini-Workshop on Preparing for PRACE Exascale systems
Creators: name: Gursoy, Buket Benek
name: Meyer, Jan Christian
name: Eriksson, Jerry
Publisher: name: Zenodo
Year: 2017
Subjects: Ecascale
FZJ

description: PRACE-5IP WP7 T7.2 organised a mini-workshop on Preparing for PRACE Exascale Systems on June 1, 2017 at the Forschungszentrum Jülich (FZJ), Germany. This paper discusses the objectives, talks, and outcomes of the workshop.
Inflationary Perturbations in Palatini Generalised Gravity
Creators: name: Tamanini, Nicola
name: Contaldi, Carlo R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the generation of primordial perturbations during an inflationary epoch in generalised theories of gravity when the equations of motion are derived using the Palatini variational principle. Both f(R) and Scalar-Tensor theories are considered and we compare our results with those obtained under the conventional metric formalism. Non-linear generalisations of the action lead to different theories under the two variational choices and we obtain distinct results for scalar and tensor spectral indices and their ratio. We find the following general result; inflation driven solely by f(R) modifications alone do not result in suitable curvature perturbations whilst Scalar-Tensor theories generate nearly scalar invariant curvature perturbations but no tensor modes.
description: 9 pages
Farmers' Relationship with Different Animals: The Importance of Getting Close to the Animals - Case Studies of French, Swedish and Dutch Cattle, Pig and Poultry Farmers
Creators: name: Bock, B.B.
name: Van Huik, M.M.
name: Eveillardc, F. Kling
name: Dockes, A.
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: The article analyses how cattle and poultry farmers in the Netherlands described their relationship with their farm animals and explores the factors that influence their level of attachment to them. The analysis draws upon Willkie’s (2005) framework of farmer-animal relationship, which distinguishes between different levels of attachment and detachment. This framework was useful for explaining why farmers developed different levels of attachment to animals, with the species, farm sector and housing system all playing roles in influencing this. Farmers tended to be more attached to cows than to chickens and felt more attachment towards breeding, as opposed to fattening, animals. Breeding, especially of cows, linked the animal to the personal histories of farmers, since their ancestors had often established the bloodlines of dairy cows. Farmers’ relationships with their animals were also influenced by the organization of production at the farm: the number of animals, their length of stay on the farm and the housing system. These factors all influenced the visibility of the animal as an individual and as a ‘real’ animal and not a living tool of production. The species and function of an animal and the organization of production largely defined the frequency, intensity and intimacy of farmers’ contact with individual animals. Practically all farmers (across sectors) perceived taking good care of animals and avoidance of suffering as a core element of their job and caring about animals as central to their definition of a ‘good farmer’. Beyond this, different groups of farmers showed clear differences in their level of attachment to their animals. In general dairy farmers felt more strongly attached to their dairy cows than farmers to their beef cattle or veal, whereas most poultry farmers felt rather detached from their chicken, and tended to perceive them as part of a flock and ‘living production tools’. These animals were not only de-individualized; at times and when seen solely as part of a meat and egg production system they were almost de-animalized.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
title: Remarks Prepared for Secretary of Transportation Elizabeth Hanford Dole, International Civil Aviation Organization
Creators: name: Dole, Elizabeth Hanford
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1985
Subjects: classificationCode: https://trt.trb.org/term/92062
subject: Aviation
classificationCode: https://trt.trb.org/term/90950
subject: Terrorism
classificationCode: https://trt.trb.org/term/88217
subject: International travel
classificationCode: https://trt.trb.org/term/88212
subject: Air travel
classificationCode: https://trt.trb.org/term/90593
subject: Safety and security
classificationCode: https://trt.trb.org/term/96636
subject: International relations
classificationCode: https://trt.trb.org/term/92063
subject: Civil aviation

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/58
description: Remarks prepared for Secretary of Transportation Elizabeth Hanford Dole at the International Civil Aviation Organization in Montreal, Canada on June 27, 1985.
MATHICSE Technical Report : A Multilevel Stochastic Gradient method for PDE-constrained Optimal Control Problems with uncertain parameters
Creators: name: Martin, Matthieu Claude
name: Nobile, Fabio
name: Tsilifis, Panagiotis
Publisher: name: Écublens, MATHICSE
Year: 2020

description: In this paper, we present a multilevel Monte Carlo (MLMC) version of the Stochastic Gradient (SG) method for optimization under uncertainty, in order to tackle Optimal Control Problems (OCP) where the constraints are described in the form of PDEs with random parameters. The deterministic control acts as a distributed forcing term in the random PDE and the objective function is an expected quadratic loss. We use a Stochastic Gradient approach to compute the optimal control, where the steepest descent direction of the expected loss, at each iteration, is replaced by independent MLMC estimators with increasing accuracy and computational cost. The refinement strategy is chosen a-priori such that the bias and, possibly, the variance of the MLMC estimator decays as a function of the iteration counter. Detailed convergence and complexity analyses of the proposed strategy are presented and asymptotically optimal decay rates are identified such that the total computational work is minimized. We also present and analyze an alternative version of the multilevel SG algorithm that uses a randomized MLMC estimator at each iteration. Our methodology is validated through a numerical example.
Segmentation Based on Consumers' Perceived Importance and Attitude toward Farm Animal Welfare
Creators: name: Vanhonacker, Filiep
name: Verbeke, Wim
name: Poucke, Els Van
name: A.M. Tuyttens, Frank
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: Animal welfare is subject to increased societal concern and consumer interest. However, not everybody considers animal welfare as equally important or reason of concern. As a consequence, it is relevant from a socio-economic perspective to identify segments differing in public opinion toward animal welfare as well as in animal welfare related behaviour as consumers. In this study, a cluster analysis is performed using a cross-sectional dataset of 459 residents of Flanders, Belgium, gathered in 2006. The perceived importance attached to animal welfare as a product attribute in the food purchasing decision process relative to other product attributes (relative importance; RI) is investigated, as well as the subjective evaluation of the current state of farm animal welfare (evaluation; EV) as segmentation variables. Six clusters are obtained: cluster 1 with moderate RI and positive EV (21.1%); cluster 2 with very low RI and strong positive EV (12.9%); cluster 3 with low RI and moderate EV (18.7%); cluster 4 with moderate RI and low EV (12.6%); cluster 5 with high RI and moderate EV (23.5%); cluster 6 with very high RI and very negative EV (11.1%). The clusters have been characterised in terms of social determinants of attitude toward animal welfare, meat consumption behaviour, knowledge about animal welfare, and interest in information. Based on this segmentation exercise and segment’s profiles, we identified market opportunities for higher animal welfare products.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
Animal Welfare According to Norwegian Consumers and Producers: Definitions and Implications
Creators: name: Ådnegard Skarstad, Guro
name: Terragni, Laura
name: Torjusen, Hanne
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: The objective of this article is to present the definitions of animal welfare that emerged from a qualitative study of Norwegian consumers and producers. Two questions are discussed: 1) How do consumers and producers define good farm animal welfare? 2) How do consumers and producers view the role of animal welfare regulations and labelling? Results from this study suggest that these two groups share fundamental values underpinning their conceptions. For both consumers and producers, a good life for farm animals tends to be a negotiation between care, freedom and economy. Drawing upon the theoretical discussion of how food quality attributes are established in alternative food networks and through increased regulations, we suggest that animal welfare regulations and food labelling may change producers’ and consumers’ definitions of animal welfare. This may lead to a shift of focus from 'well-treated farm animals' to a more abstract and standardised notion, where animals are perceived as 'well-produced food commodities'.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
MATHICSE Technical Report: Existence of dynamical low rank approximations for random semi-linear evolutionary equations on the maximal interval
Creators: name: Kazashi, Yoshihito
name: Nobile, Fabio
Publisher: name: Écublens, MATHICSE
Year: 2020

description: An existence result is presented for the dynamical low rank (DLR) approximation for random semi-linear evolutionary equations. The DLR solution approximates the true solution at each time instant by a linear combination of products of deterministic and stochastic basis functions, both of which evolve over time. A key to our proof is to find a suitable equivalent formulation of the original problem. The so-called Dual Dynamically Orthogonal formulation turns out to be convenient. Based on this formulation, the DLR approximation is recast to an abstract Cauchy problem in a suitable linear space, for which existence and uniqueness of the solution in the maximal interval are established.
Fast rotating Blue Stragglers in the globular cluster M4
Creators: name: Lovisi, L.
name: Mucciarelli, A.
name: Ferraro, F. R.
name: Lucatello, S.
name: Lanzoni, B.
name: Dalessandro, E.
name: Beccari, G.
name: Rood, R. T.
name: Sills, A.
name: Pecci, F. Fusi
name: Gratton, R.
name: Piotto, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have used high resolution spectra obtained with the spectrograph FLAMES at the ESO Very Large Telescope to determine the kinematical properties and the abundance patterns of 20 blue straggler stars (BSSs) in the globular cluster M4. We found that ~ 40% of the measured BSSs are fast rotators (with rotational velocities > 50 km/s). This is the largest frequency of rapidly rotating BSSs ever detected in a globular cluster. In addition, at odds with what has been found in 47 Tucanae, no evidence of carbon and/or oxygen depletion has been revealed in the sample of 11 BSSs for which we were able to measure the abundances. This could be due either to low statistics, or to a different BSS formation process acting in M4.
description: 16 pages, 4 figures, ApJL accepted
MATHICSE Technical Report : Regularity and sparse approximation of the recursive first moment equations for the lognormal Darcy problem
Creators: name: Bonizzoni, Francesca
name: Nobile, Fabio
Publisher: name: Écublens, MATHICSE
Year: 2020

description: We study the Darcy boundary value problem with log-normal permeability field. We adopt a perturbation approach, expanding the solution in Taylor series around the nominal value of the coefficient, and approximating the expected value of the stochastic solution of the PDE by the expected value of its Taylor polynomial. The recursive deterministic equation satisfied by the expected value of the Taylor polynomial (first moment equation) is formally derived. Well-posedness and regularity results for the recursion are proved to hold in Sobolev space-valued Hölder spaces with mixed regularity. The recursive first moment equation is then discretized by means of a sparse approximation technique, and the convergence rates are derived.
title: Remarks Prepared for Secretary Elizabeth Hanford Dole, Press Availability, Montreal, Canada
Creators: name: Dole, Elizabeth Hanford
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1985
Subjects: classificationCode: https://trt.trb.org/term/92062
subject: Aviation
classificationCode: https://trt.trb.org/term/90593
subject: Safety and security
classificationCode: https://trt.trb.org/term/90950
subject: Terrorism

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/59
description: Remarks prepared for Secretary Elizabeth Hanford Dole, Press Availability in Montreal, Canada on June 27, 1985.
MATHICSE Technical Report: Stability properties of a projector-splitting scheme for the dynamical low rank approximation of random parabolic equations
Creators: name: Kazashi, Yoshihito
name: Nobile, Fabio
name: Vidlicková, Eva
Publisher: name: Écublens, MATHICSE
Year: 2020

description: We consider the Dynamical Low Rank (DLR) approximation of random parabolic equations and propose a class of fully discrete numerical schemes. Similarly to the continuous DLR approximation, our schemes are shown to satisfy a discrete variational formulation. By exploiting this property, we establish stability of our schemes: we show that our explicit and semi-implicit versions are conditionally stable under a parabolic type CFL condition which does not depend on the smallest singular value of the DLR solution; whereas our implicit scheme is unconditionally stable. Moreover, we show that, in certain cases, the semi-implicit scheme can be unconditionally stable if the randomness in the system is sufficiently small. Furthermore, we show that these schemes can be interpreted as projector-splitting integrators and are strongly related to the scheme proposed by Lubich et al. [BIT Num. Math., 54:171-188, 2014; SIAM J. on Num. Anal., 53:917-941, 2015], to which our stability analysis applies as well. The analysis is supported by numerical results showing the sharpness of the obtained stability conditions.
“Tutto è geometria”
Creators: name: Memeo, Ambra
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021
Subjects: arte
matematica
geometria
interdisciplinarità
creatività

description: L’interdisciplinarità è un approccio didattico fondamentale per favorire lo sviluppo delle competenze, disciplinari e trasversali, nel bambino. Così facendo, come promuove il Piano di studio della scuola dell’obbligo ticinese, si immerge l’allievo in un contesto più stimolante e sensato. Grazie al contributo di quindici allievi di quinta elementare appassionati di arte, ho potuto osservare e analizzare il potenziale di un approccio interdisciplinare tra arte e geometria. I bambini hanno infatti osservato e descritto dei famosi dipinti, per poi immedesimarsi in artisti e creare delle personali opere. Accostando questo genere di attività a una mirata riflessione geometrica, gli allievi hanno colto dei collegamenti tra le opere osservate e create con i concetti geometrici scoperti. Di conseguenza, hanno saputo far dialogare arte e matematica, attivando una per sviluppare l’altra e viceversa. I risultati ottenuti, da cui emerge l’evoluzione delle competenze disciplinari del gruppo, sono certamente positivi e incentivano questo tipo di approccio. Relatore: Luca Crivelli.
MATHICSE Technical Report : Fast approximation by periodic kernel-based lattice-point interpolation with application in uncertainty quantification
Creators: name: Kaarnioja, Vesa
name: Kazashi, Yoshihito
name: Kuo, Frances Y.
name: Nobile, Fabio
name: Sloan, Ian H.
Publisher: name: Écublens, MATHICSE
Year: 2020

description: This paper deals with the kernel-based approximation of a multivariate periodic function by interpolation at the points of an integration lattice---a setting that, as pointed out by Zeng, Leung, Hickernell (MCQMC2004, 2006) and Zeng, Kritzer, Hickernell (Constr. Approx., 2009), allows fast evaluation by fast Fourier transform, so avoiding the need for a linear solver. The main contribution of the paper is the application to the approximation problem for uncertainty quantification of elliptic partial differential equations, with the diffusion coefficient given by a random field that is periodic in the stochastic variables, in the model proposed recently by Kaarnioja, Kuo, Sloan (SIAM J. Numer. Anal., 2020). The paper gives a full error analysis, and full details of the construction of lattices needed to ensure a good (but inevitably not optimal) rate of convergence and an error bound independent of dimension. Numerical experiments support the theory.
Consumption of Welfare-friendly Food Products in Great Britain, Italy and Sweden, and How It May Be Influenced by Consumer Attitudes to, and Behaviour towards, Animal Welfare Attributes
Creators: name: Mayfield, L.E.
name: Bennett, R.M.
name: Tranter, R.B.
name: Wooldridge, M.J.
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: The interest in animal welfare and welfare-friendly food products has been increasing in Europe over the last 10 years. The media, highlighting traditional farming methods and food scares such as those related to salmonella, bovine spongiform encephalopathy/variant Creutzfeldt-Jakob disease (BSE) and avian influenza, have brought the methods of animal farming to public attention. Concerns about farm animal welfare are reflected in the increase in the number of vegetarians and vegans and an increase in consumers wishing to purchase food which is more animal welfare-friendly. This paper considers consumers’ attitudes to animal welfare and to marketing practices, such as product labelling, welfare grading systems and food assurance marks using comparative data collected in a survey of around 1500 consumers in each of Great Britain, Italy and Sweden as part of the EU-funded Welfare Quality research project. The findings suggest a need for the provision of improved consumer information on the welfare provenance of food using appropriate product labelling and other methods.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
Eating Well, Eating Fare: Farm Animal Welfare in France
Creators: name: Buller, Henry
name: Cesar, Christine
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: Although the welfare of farm animals is increasingly being incorporated into notions of quality within the food chain, this is a rarely an explicit component. Rather, it is bundled in with a number of related environmental, health and territorial ‘goods’ to a create a composite construction of product quality that differentially conceals and makes visible the animal life, and its setting. Drawing upon recent research conducted in France, this paper examines the manner in which these bundled ‘goods’ are assembled during the commercialisation process of animal products and considers the place of animal welfare within that bundling. As a strategy of market segmentation, the differential concealment and valorisation of animal lives within the process of commercialisation, reveals, we argue, food chain actors’ perception of an enduring tension in contemporary social attitudes towards to farm animals and their transformation into meat products which, following Elias, demonstrates not only an ethical pluralism but also a necessary distanciation that issues of welfare are having to confront. As such, the paper identifies the shifting discourses of ‘quality’ that are assembled around the product and the intended meanings as communicated to consumers.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
title: Remarks Prepared for Delivery by Deputy Secretary Jim Burnley, Volvo Headquarters
Creators: name: Burnley, Jim
name: United States Department of Transportation
Publisher: name: United States Department of Transportation
publisherIdentifier: https://ror.org/02xfw2e90
publisherIdentifierScheme: ROR
Year: 1985
Subjects: classificationCode: https://trt.trb.org/term/93148
subject: Trucks
classificationCode: https://trt.trb.org/term/90606
subject: Vehicle safety
classificationCode: https://trt.trb.org/term/88846
subject: Manufacturing
classificationCode: https://trt.trb.org/term/93725
subject: Antilock brake systems
classificationCode: https://trt.trb.org/term/91423
subject: Economic factors
classificationCode: https://trt.trb.org/term/88698
subject: Taxes

description: See the Secretary of Transportation Speeches Collection's finding aid at: https://ntl.as.atlas-sys.com/repositories/2/resources/60
description: Remarks prepared for delivery by Deputy Secretary Jim Burnley at the Volvo Headquarters in Greensboro, North Carolina, on June 28, 1985.
The Rise of Agricultural Animal Welfare Standards as Understood Through a Neo-Institutional Lens
Creators: name: Ransom, Elizabeth
Publisher: name: The International Journal of Sociology of Agriculture and Food
Year: 2007

description: In recent years agricultural animal welfare standards have increasingly been placed on the agenda of international, regional, and national governance bodies, as well as private agrifood organizations. Standards, long the domain of economists, are now recognized as one of the most significant emerging practices for governing food, and as such, a growing number of scholars have focused on the role that powerful actors have in setting standards and the distributional benefits of standards implementation. However, much of the existing literature relies on consumer-demand arguments for explaining the rise of animal welfare standards. This article uses sociological neo-institutionalism, specifically institutional isomorphism, to reveal that agrifood organizations are either forced by large food retailers, or by the demands of interacting with other complex organizations, to adopt animal welfare standards in an effort to maintain access to markets, political power and legitimacy. Further, due to the continuing uncertainty surrounding the definition of agricultural animal welfare and the standards and techniques used to ensure compliance, the evidence supports the theory that organizations will model themselves after similar organizations in their field that they perceive to be more legitimate or successful.
description: The International Journal of Sociology of Agriculture and Food, Vol. 15 No. 3 (2007): Special Issue: Competing Discourses of Farm Animal Welfare and Agri-food Restructuring
Delayed Seasonal Cycles and Declining Shellfish Growth Rates Observed at Wellfleet Harbor in the Recent Decades
Creators: name: Yang, Kristine
Publisher: name: figshare
Year: 2022
Subjects: subject: 40104 Climate Change Processes
subject: FOS: Earth and related environmental sciences
subject: 50101 Ecological Impacts of Climate Change

description: High school research project report on climate change and its impact on Cape Cod farmed shellfish.
title: ÐÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½Ð¾-ÑÐ¾ÑÐ³Ð¾Ð²Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ°ÑÐµ-ÐºÐ¾Ð½Ð´Ð¸ÑÐµÑÑÐºÐ¾Ð¹ Ð¿Ð¾ Ð°Ð´ÑÐµÑÑ: ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ°Ñ Ð¾Ð±Ð»Ð°ÑÑÑ, Ð¿Ð¾Ñ. ÐÑÐ³ÑÑ, ÑÐ». Ð¨ÐºÐ¾Ð»ÑÐ½Ð°Ñ, Ð´. 2
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Organization of production and trading activities of the cafe-confectionery at the address: Leningrad Region, pos. Bugry, st. School, 2
Creators: name: ÐÐ¾ÑÐ¶Ð°Ð²ÑÑ, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐºÐ°ÑÐµ-ÐºÐ¾Ð½Ð´Ð¸ÑÐµÑÑÐºÐ°Ñ
Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½Ð¾-ÑÐ¾ÑÐ³Ð¾Ð²Ð°Ñ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÑ
Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð¾Ðµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ
Ð¼ÐµÐ½Ñ
Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½Ð°Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð°.
cafe-pastry shop
production and trading activities
marketing justification
menu
production program.

description: ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¾ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð¾Ðµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÐ¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ°ÑÐµ â ÐºÐ¾Ð½Ð´Ð¸ÑÐµÑÑÐºÐ¾Ð¹ Ð½Ð° 50 Ð¼ÐµÑÑ Ð² ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸, Ð¿Ð¾Ñ. ÐÑÐ³ÑÑ, ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾Ð³ÑÐµÑÑ, Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÑÐµÑÑ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð° Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÑÑÑÐºÑÑÑÐ° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÑÐµÐ¼Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ, ÐµÐ³Ð¾ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð¾ÑÐ½Ð¾Ðµ ÑÐµÑÐµÐ½Ð¸Ðµ Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸.
description: A marketing study of the need to design a cafe - confectionery for 50 places in the Leningrad region, pos. The mounds, the technological progress has been developed, the technological calculations of the equipment have been made, the organizational structure of the enterprise has been determined. Developed measures to ensure the safety of the projected enterprise, its planning solution and identified the main economic indicators.
Spitzer Space Telescope observations of the Carina Nebula: The steady march of feedback-driven star formation
Creators: name: Smith, Nathan
name: Povich, Matthew S.
name: Whitney, Barbara A.
name: Churchwell, Ed
name: Babler, Brian L.
name: Meade, Marilyn R.
name: Bally, John
name: Gehrz, Robert D.
name: Robitaille, Thomas P.
name: Stassun, Keivan G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the first results of imaging the Carina Nebula with Spitzer/IRAC, providing a catalog of point sources and YSOs based on SED fits. We discuss several aspects of the extended emission, including dust pillars that result when a clumpy molecular cloud is shredded by massive star feedback. There are few "extended green objects" (EGOs) normally taken as signposts of outflow activity, and none of the HH jets detected optically are seen as EGOs. A population of "extended red objects" tends to be found around OB stars, some with clear bow-shocks. These are dusty shocks where stellar winds collide with flows off nearby clouds. Finally, the relative distributions of O stars and subclusters of YSOs as compared to dust pillars shows that while some YSOs are located within pillars, many more stars and YSOs reside just outside pillar heads. We suggest that pillars are transient phenomena, part of a continuous outwardly propagating wave of star formation driven by massive star feedback. As pillars are destroyed, they leave newly formed stars in their wake, which are then subsumed into the young OB association. Altogether, the current generation of YSOs shows no strong deviation from a normal IMF. The number of YSOs suggests a roughly constant star-formation rate over the past 3Myr, implying that star formation in pillars constitutes an important mechanism to construct unbound OB associations. Accelerated pillars may give birth to O-type stars that, after several Myr, could appear to have formed in isolation.
description: 25 pages, 15 figures, MNRAS accepted
MATHICSE Technical Report : Uncertainty Quantification by MLMC and Local Time-stepping For Wave Propagation
Creators: name: Grote, Marcus J.
name: Michel, Simon
name: Nobile, Fabio
Publisher: name: Ecublens, EPFL
Year: 2021

description: Because of their robustness, efficiency and non-intrusiveness, Monte Carlo methods are probably the most popular approach in uncertainty quantification to computing expected values of quantities of interest (QoIs). Multilevel Monte Carlo (MLMC) methods significantly reduce the computational cost by distributing the sampling across a hierarchy of discretizations and allocating most samples to the coarser grids. For time dependent problems, spatial coarsening typically entails an increased time-step. Geometric constraints, however, may impede uniform coarsening thereby forcing some elements to remain small across all levels. If explicit time-stepping is used, the time-step will then be dictated by the smallest element on each level for numerical stability. Hence, the increasingly stringent CFL condition on the time-step on coarser levels significantly reduces the advantages of the multilevel approach. By adapting the time-step to the locally refined elements on each level, local time-stepping (LTS) methods permit to restore the efficiency of MLMC methods even in the presence of complex geometry without sacrificing the explicitness and inherent parallelism.
Natural Supersymmetry at the LHC
Creators: name: Asano, Masaki
name: Kim, Hyung Do
name: Kitano, Ryuichiro
name: Shimizu, Yasuhiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the minimal supersymmetric standard model is the solution to the hierarchy problem, the scalar top quark (stop) and the Higgsino should weigh around the electroweak scale such as 200 GeV. A low messenger scale, which results in a light gravitino, is also suggested to suppress the quantum corrections to the Higgs mass parameters. Therefore the minimal model for natural supersymmetry is a system with stop/Higgsino/gravitino whereas other superparticles are heavy. We study the LHC signatures of the minimal system and discuss the discovery potential and methods for the mass measurements.
description: 19 pages, 6 figures, 1 table