cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
"An Image is Worth a Thousand Features": Scalable Product Representations for In-Session Type-Ahead Personalization
Creators: name: Yu, Bingqing
name: Tagliabue, Jacopo
name: Greco, Ciro
name: Bianchi, Federico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.6; I.2.7

description: We address the problem of personalizing query completion in a digital commerce setting, in which the bounce rate is typically high and recurring users are rare. We focus on in-session personalization and improve a standard noisy channel model by injecting dense vectors computed from product images at query time. We argue that image-based personalization displays several advantages over alternative proposals (from data availability to business scalability), and provide quantitative evidence and qualitative support on the effectiveness of the proposed methods. Finally, we show how a shared vector space between similar shops can be used to improve the experience of users browsing across sites, opening up the possibility of applying zero-shot unsupervised personalization to increase conversions. This will prove to be particularly relevant to retail groups that manage multiple brands and/or websites and to multi-tenant SaaS providers that serve multiple clients in the same space.
title:  Una panoramica degli studi sull’acquisizione di aspetti sintattici e strutture grammaticali del cinese da parte di italofoni
Creators: name: Morbiato  ,  Anna
Publisher: name: Roma TrE-Press
Year: 2021

description: Se di per sé la ricerca sull’acquisizione del cinese come lingua seconda/straniera è una disciplina relativamente giovane, ciò è ancor più vero per le ricerche acquisizionali su aspetti di natura sintattica condotte su apprendenti di madrelingua italiana. Questo articolo si propone di tracciare una panoramica della ricerca in quest’ambito: dopo aver delineato il campo di indagine e i principali approcci teorico-metodologici della disciplina, ne presenta alcuni tra i principali strumenti, obiettivi e nozioni; offre poi una breve rassegna di alcuni studi condotti su apprendenti italofoni, soffermandosi nello specifico su caratteristiche sintattiche e del discorso che accomunano o differenziano l’italiano e il cinese.
description: La lingua cinese in Italia. Studi su didattica e acquisizione
title:  Il Principle of Temporal Sequence nell’apprendimento del sintagma locativo ‘zài 在 + luogo’: un’indagine preliminare su discenti italofoni
Creators: name: Tucci  ,  Tommaso
Publisher: name: Roma TrE-Press
Year: 2021

description:  Il Principle of Temporal Sequence nell’apprendimento del sintagma locativo ‘zài 在 + luogo’: un’indagine preliminare su discenti italofoni
description: La lingua cinese in Italia. Studi su didattica e acquisizione
Braking behavior of major approach turning vehicles at rural two-way stop controlled intersections: A naturalistic driving study
Creators: name: Thapa, Raju
name: Hallmark, Shauna
name: Oneyear, Nicole
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Objective: Using naturalistic driving data, this study analyzed the driving behavior of major approach right and left turning vehicles to minor approach at rural two-way stop controlled intersections by detecting the location where drivers reacted to the upcoming intersection to complete a turning maneuver. Methods: The study used 449 time series traces from 29 two-way stop controlled intersections across five states for the analysis. All 449 traces were associated to free flow condition with driving not obstructed by the vehicle ahead. Each time series trace was analyzed to check the point drivers first reacted to the intersection for the turning maneuver and this point was called the reaction point. Braking Behavior of Major Approach Turning Vehicles at Rural Two-Way Stop Controlled Intersections: A Naturalistic Driving Study Results: The results from this study showed that right turning vehicles began reacting, in general, sooner than left turning vehicles. More than 75% of drivers showed a reaction within 300 meters upstream of intersection for both types of turning maneuver. The study found driving speed at the reaction point significantly affecting the initial point of reaction. Drivers who were traveling faster than the posted speed limit were associated with a reaction point farther upstream than vehicles traveling at the speed limit. On-pavement marking upstream of the intersection was found to be associated with longer reaction distance, while posted intersection ahead warning signs showed a reverse effect. The result provides information on braking zone of turning vehicles at intersections which has implication on the placement of different countermeasures upstream at the major approach. Conclusions: By detecting reaction distance of all 449 time series trace, the study provides an influence area of the intersection for the turning vehicles.
THE IMPACT OF SQF CERTIFICATION ON U.S. AGRI-FOOD EXPORTS
Creators: name: Seok, Jun Ho
name: Reed, Michael Robert
name: Saghaian, Sayed
name: Seok, Jun Ho
name: Reed, Michael Robert
name: Saghaian, Sayed
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Political Economy
subject: Exports
subject: Poisson Pseudo-Maximum Likelihood (PPML)
subject: Product quality
subject: SQF (Safe Quality Food) certification

description: Many studies show that product quality plays an important role in determining the direction of trade. This paper uses the Safe Quality Food (SQF) certification as a proxy variable for quality to investigate its effect on U.S. exports. The results of this study show that only the highest level of SQF quality certification has a positive effect on U.S. agri-food exports. The results of this paper have three implications. Firms in the U.S. may want to become certified at the highest level of private standards if they are serious about increasing their exports. On the government side, they should consider employing high public standards or follow other strategies to promote development of high private standards. On the consumer side, SQF may have a signaling effect. SQF represents high quality in terms of food safety, which means that
Adversarial Multimodal Representation Learning for Click-Through Rate Prediction
Creators: name: Li, Xiang
name: Wang, Chao
name: Tan, Jiwei
name: Zeng, Xiaoyi
name: Ou, Dan
name: Zheng, Bo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: For better user experience and business effectiveness, Click-Through Rate (CTR) prediction has been one of the most important tasks in E-commerce. Although extensive CTR prediction models have been proposed, learning good representation of items from multimodal features is still less investigated, considering an item in E-commerce usually contains multiple heterogeneous modalities. Previous works either concatenate the multiple modality features, that is equivalent to giving a fixed importance weight to each modality; or learn dynamic weights of different modalities for different items through technique like attention mechanism. However, a problem is that there usually exists common redundant information across multiple modalities. The dynamic weights of different modalities computed by using the redundant information may not correctly reflect the different importance of each modality. To address this, we explore the complementarity and redundancy of modalities by considering modality-specific and modality-invariant features differently. We propose a novel Multimodal Adversarial Representation Network (MARN) for the CTR prediction task. A multimodal attention network first calculates the weights of multiple modalities for each item according to its modality-specific features. Then a multimodal adversarial network learns modality-invariant representations where a double-discriminators strategy is introduced. Finally, we achieve the multimodal item representations by combining both modality-specific and modality-invariant representations. We conduct extensive experiments on both public and industrial datasets, and the proposed method consistently achieves remarkable improvements to the state-of-the-art methods. Moreover, the approach has been deployed in an operational E-commerce system and online A/B testing further demonstrates the effectiveness.
description: Accepted to WWW 2020, 10 pages
On the Universality Class of Certain String Theory Hadrons
Creators: name: Bertoldi, G.
name: Bigazzi, F.
name: Cotrone, A. L.
name: Nunez, C.
name: Zayas, L. A. Pando
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Exploiting the gauge/gravity correspondence we find the spectrum of hadronic-like bound states of adjoint particles with a large global charge in several confining theories. In particular, we consider an embedding of four-dimensional N=1 supersymmetric Yang-Mills into IIA string theory, two classes of three-dimensional gauge theories and the softly broken version of one of them. In all cases we describe the low energy excitations of a heavy hadron with mass proportional to its global charge. These excitations include: the hadron's nonrelativistic motion, its stringy excitations and excitations corresponding to the addition of massive constituents. Our analysis provides ample evidence for the universality of such hadronic states in confining theories admitting supergravity duals. Besides, we find numerically a new smooth solution that can be thought of as a non-supersymmetric deformation of G_2 holonomy manifolds.
description: 64pp, 16 figures
title: End-to-End Ensemble Modelling for Water Resources Planning Under Uncertainty
Creators: name: Counsell, Christian John Adam
Publisher: name: The Open University
Year: 2018

description: A hydrological model ensemble, considering two model structures (CatchMOD and PDM), parameter uncertainty and two contrasting methods for estimating potential evapotranspiration (PET), is developed to investigate the relative significance of different sources of uncertainty for water resources planning in the Thames basin. This model ensemble is driven by an ensemble of UKCP09 probabilistic and Future Flows climate change projections, for the 2030s, 2050s and 2080s, to quantify the projected impacts on a range of metrics of relevance to water resources planners using a water resources system model of London. These sources of supply-side uncertainty are shown to be significant, with the uncertainty associated with the climate change scenarios the largest but hydrological modelling uncertainty, and the method used to estimate PET also shown to be considerable. In terms of overall impacts, the central estimates for the 2030s, 2050s and 2080s are reductions in available resource of around 7%, 11% and 14% respectively. These impacts are shown to equate to economic costs of the order of £360m, £610m and £735m respectively to mitigate such reductions in supply. The range of uncertainty within each time-horizon is large, greater than the differences between the time-horizons, presenting a significant challenge in deciding the level and timing of investments to mitigate emerging risks. As an example, impacts considered reasonably likely by the 2080s (e.g. a central estimate of 14% impact on deployable output using both PET methods) may be as likely by the 2030s (e. g. using only the modified Penman-Monteith PET method). The estimates of future supply reliability are contrasted with demand forecasts and whilst the pressure associated with the latter is shown to be greater, both are significant and subject to large degrees of uncertainty. This thesis also highlights the need for detailed examination of hydrological model structures to provide evidence as to their strengths and weaknesses in their representation of key processes, particularly during droughts. The limitations of the climate change products currently used in the industry, particularly with regards to droughts and estimating changes in PET, are also explored. Significant ongoing research is developing decision-making approaches to support the planning of robust and resilient systems under an uncertain future. This thesis demonstrates that alongside this development, more research is needed to understand, identify and quantify the significant sources of uncertainty that need to be considered as part of the decision-making process.
DIFFERENTIATING “SUSTAINABLE” FROM “ORGANIC” AND “LOCAL” FOOD CHOICES: DOES INFORMATION ABOUT CERTIFICATION CRITERIA HELP CONSUMERS?
Creators: name: Sackett, Hillary
name: Shupp, Robert
name: Tonsor, Glynn
name: Sackett, Hillary
name: Shupp, Robert
name: Tonsor, Glynn
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Health Economics and Policy
subject: Sustainable Agriculture
subject: Food Labels
subject: Discrete Choice Experiment
subject: Certification Criteria
subject: Consumer Behavior

description: his paper seeks to estimate the effect of different certification claims on consumer preferences for food labeled as “sustainable”, “organic”, or “local”. The first phase of analysis estimates the effect of information provision about detailed certification standards on choice over eco-labeled food products. The second phase estimates the marginal effect of certification level on the probability of choosing a product with a given label. Finally, the third phase of analysis compares willingness to pay for each eco-label, providing insight into perceived value trade-offs. Results suggest weak differentiation between labels but potential for capturing price premiums with government-backed certification claims
Single-Particle Spectrum in the Electron-Doped Cuprates
Creators: name: Kusunose, Hiroaki
name: Rice, T. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the evolution of the single-particle spectrum with electron doping in a scheme which adds multiple exchange of transverse spin excitations to the mean-field antiferromagnetic insulator. Away from half-filling small Fermi surface pockets appear first around the X-points, and simultaneously new spectral weight grows in the insulating gap. With further doping the in-gap states develop the character of a renormalized quasiparticle band near the chemical potential. The essential features in momentum-energy space agree well with recent studies using angle-resolved photoemission spectroscopy on electron-doped cuprates. We interpret the origins and the nature of the in-gap states using a simple variational wavefunction.
description: 4 pages, 5 color figures
Brachyphoderes longicollis Clarke 2015, comb. nov.
Creators: name: Clarke, Robin O. S.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Brachyphoderes
Brachyphoderes longicollis

description: Brachyphoderes longicollis (Chemsak and Noguera, 1993) comb. nov.
(Fig. 28)
 Acyphoderes longicollis Chemsak and Noguera, 1993: 80; Monné 2005: 456 (cat.). Note. In Monné (2005) the citation for this species is recorded as Chemsak and Noguera, 1995: 80; it should be 1993: 80.
 Species Concept. Based on the original description and illustration, and examination of eight paratypes in the EMEC collection.
 Measurements (mm). 8 males, total length, 12.0-15.6; length of prothorax, 2.10-2.60; width of prothorax, 1.65-2.15; length of elytra, 3.25-3.95; width at humeri, 1.70-2.20.
 Material analyzed. Paratype, MEXICO, Jalisco, Est. Bio. Chamela, on Paullinia flowers, 1 male, 14.VII.1990 (EMEC 202,808).
 Material examined. Paratypes, MEXICO, Jalisco, Est. Bio. Chamela, on Paullinia flowers, 6 males, 3- 17.VII.1990 (EMEC 202,807 /809-813); Est. Bio. Chamela, 1 male, 4.VII.1991, J. D. Mc Carty col. (EMEC 202,806); La Manzanilla, 1 male, 3.VII.1991, F. A. Noguera col. (EMEC 202,807).
 Comment. Very similar to, but geographically distant from B. dehiscens. Tegmen of aedeagus very similar, lateral lobes of tegmen slightly longer and narrower, and more setose in B. dehiscens than in this species. However, specimens of B. dehiscens are few in number, and the data presented in the key for the identification of the two species requires the examination of more specimens to eliminate differences due to variation.
description: Published as part of Clarke, Robin O. S., 2015, Revision of the genus Acyphoderes Audinet-Serville, 1833, with a brief synopsis of the genus Bromiades Thomson, 1864 (Coleoptera, Cerambycidae), pp. 1-92 in Insecta Mundi 2015 (401) on pages 56-57, DOI: 10.5281/zenodo.4531694
Development of in-vitro in-silico technologies for modelling and analysis of haematological malignancies
Creators: name: Ferreira Rodrigues De Morais, José Carlos
Publisher: name: Imperial College London
Year: 2021

description: Worldwide, haematological malignancies are responsible for roughly 6% of all the cancer-related deaths. Leukaemias are one of the most severe types of cancer, as only about 40% of the patients have an overall survival of 10 years or more. Myelodysplastic Syndrome (MDS), a pre-leukaemic condition, is a blood disorder characterized by the presence of dysplastic, irregular, immature cells, or blasts, in the peripheral blood (PB) and in the bone marrow (BM), as well as multi-lineage cytopenias. We have created a detailed, lineage-specific, high-fidelity in-silico erythroid model that incorporates known biological stimuli (cytokines and hormones) and a competing diseased haematopoietic population, correctly capturing crucial biological checkpoints (EPO-dependent CFU-E differentiation) and replicating the in-vivo erythroid differentiation dynamics. In parallel, we have also proposed a long-term, cytokine-free 3D cell culture system for primary MDS cells, which was firstly optimized using easily-accessible healthy controls. This system enabled long-term (24-day) maintenance in culture with high (>75%) cell viability, promoting spontaneous expansion of erythroid phenotypes (CD71+/CD235a+) without the addition of any exogenous cytokines. Lastly, we have proposed a novel in-vitro in-silico framework using GC-MS metabolomics for the metabolic profiling of BM and PB plasma, aiming not only to discretize between haematological conditions but also to sub-classify MDS patients, potentially based on candidate biomarkers. Unsupervised multivariate statistical analysis showed clear intra- and inter-disease separation of samples of 5 distinct haematological malignancies, demonstrating the potential of this approach for disease characterization. The work herein presented paves the way for the development of in-vitro in-silico technologies to better, characterize, diagnose, model and target haematological malignancies such as MDS and AML.
The Puzzle of Listed Real Estate Companies
Creators: name: Wagner, Dominik
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: REITs, REOCs, Conversion, Agency Conflicts, Mergers and Acquisitions, Deconversion, Macroeconomic Uncertainty, Organizational Form Change, Corporate Restructuring
subject: 330 Wirtschaft

description: The cumulative dissertation of Dr. Dominik Wagner addresses three topics. The first article examines possible influencing factors for the decision of internationally operating listed real estate companies to opt for REIT status. On the basis of these identified companies, the second article analyzes both the transaction level as well as short-term and long-term return effects. The third publication copes with the degree of macroeconomic uncertainty on the decision-making process for deselecting the REIT format. Die kumulative Dissertation von Dr. Dominik Wagner beschäftigt sich mit drei Themenkomplexen. In dem ersten Artikel werden mögliche Einflussfaktoren für die Entscheidung international agierender börsennotierter Immobiliengesellschaften zur Optierung zu dem REIT-Status untersucht. Auf Grundlage dieser identifizierten Firmen werden in dem zweiten Artikel sowohl die Transaktionsebene als auch kurz- und langfristige Renditeeffekte analysiert. Die dritte Publikation beschäftigt sich mit der Maßgabe makroökonomischer Unsicherheit auf das Entscheidungskalkül zur Abwahl des REIT Formats.
description: Zugl.: Regensburg, Univ. Regensburg, Diss., 2021
title: Design and evaluation of scalable approaches to schedule a stream of batch jobs in large-scale grids
Creators: name: Pasquali, Marco
Publisher: name: IMT Alti Studi Lucca
Year: 2008
Subjects: QA75 Electronic computers. Computer science

description: I think the grid computing stimulates the cooperation among  people, that agree to share resources and knowledge, to address problems that are not reachable individually. The central purpose of grid computing is to enable a community of users to perform work on a pool of shared resources. Since the number of jobs to be done in most cases outnumbers the number of available resources, somebody must decide how to allocate resources to jobs. Historically, this has been known as the Scheduling Problem. A large amount of research in scheduling was motivated by the proliferation of massively parallel machines in the early 1990s, and the desire to use these very expensive resources as efficiently as possible. Nowadays, grid is the emerging computing platform. Grid computing makes the scheduling problem even more difficult since, due to its heterogeneous  and highly distributed nature, it cannot be served by a single centralized scheduling framework. In this Thesis we propose the study conducted to design and evaluate a hierarchical framework to dynamically schedule a continuous stream of independent, batch jobs, on large-scale grids. Our scheduler aims to schedule arriving jobs respecting  their computational requirements (hardware constraints,  software resources needed to be executed, deadlines), and optimizing the utilization of hardware and software resources. We designed a lightweight Meta-Scheduler able to classify incoming jobs according to their relevance, and to schedule jobs among underlying resources balancing the workload among them. Furthermore, we designed different algorithms as Local-Schedulers, which are able to carry out the job machine associations using dynamic information about the environment. Eventually, the Thesis presents two important related results obtained by scientific collaborations. The former concerns to the study of the self-optimizing system behavior. The latter concerns to the comparison of one of our Local-Scheduler solution with a Schedule-Based algorithm proposed by Dalibor Klus´aˇcek and Hana Rudov´a of the University of Brno.
Determination of the Superconducting Gap Structure in All Bands of the Spin-Triplet Superconductor Sr2RuO4
Creators: name: Deguchi, Kazuhiko
name: Mao, Zhiqiang
name: Maeno, Yoshiteru
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have obtained strong experimental evidence for the full determination of the superconducting gap structure in all three bands of the spin-triplet superconductor Sr2RuO4 for the first time. We have extended the measurements of the field-orientation dependent specific heat to include conical field rotations consisting of in-plane azimuthal angle phi-sweeps at various polar angles theta performed down to 0.1 K. Clear 4-fold oscillations of the specific heat and a rapid suppression of it by changing theta are explained only by a compensation from two types of bands with anti-phase gap anisotropies with each other. The results indicate that the active band, responsible for the superconducting instability, is the gamma-band with the lines of gap minima along the [100] directions, and the passive band is the alpha- and beta-bands with the lines of gap minima or zeros along the [110] directions in their induced superconducting gaps. We also demonstrated the scaling of the specific heat for the field in the c-direction, which supports the line-node-like gap structures running along the kz direction.
description: 11 pages, 7 figures
EFFECTS OF NITROGEN, PHOSPHORUS AND POTASSIUM FERTILIZATION ON THE GROWTH AND YIELD OF RADISH ON A VERTISOL
Creators: name: Wilson, H.
name: Persad, S.
name: Persad, N.
name: Wilson, H.
name: Persad, S.
name: Persad, N.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Crop Production/Industries
subject: Radish yields
subject: NPK fertilization
subject: Vertisol

description: In this agronomic study, the effects of varying levels of NPK fertilizers on the growth and yield of radish [Raphanus sativus (/.)] on Tarouba clay (fine montmorillonite, Aquentic Chromudert), were investigated. Tarouba clays are typical sugar cane Vertisols in South Trinidad allocated for '2-acre' small holder farms as part of the Caroni 1975 diversification programme. Nitrogen fertilization at the rates of 60, 120 and 180 kg/ha in the presence of varying rates of phosphorus (30, 60 and 90 kg/ha) and potassium (180 and 220 kg/ha) fertilizers were applied at planting under field conditions. The application of 120 kg N, 60 kg Ρ and 180 kg K/ha had a significant effect (P = 0.05) on all agronomic characteristics including leaf number, leaf length, root length, root girth, root weight and yield per hectare. Increased levels of nitrogen to 180 kg/ha had a significant impact on plant characteristics, with lower root length, root girth and yield per hectare, although the vegetative characteristics were also significantly lower. The response to levels of phosphorus and potassium were less pronounced, with significant effect at 60 kg P/ha and no effect of potassium fertilizer. The yield response indicates that radish can be introduced as a niche crop on Southern Vertisols.
Epigraphical Relaxation for Minimizing Layered Mixed Norms
Creators: name: Kyochi, Seisuke
name: Ono, Shunsuke
name: Selesnick, Ivan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper proposes an epigraphical relaxation (ERx) technique for non-proximable mixed norm minimization. Mixed norm regularization methods play a central role in signal reconstruction and processing, where their optimization relies on the fact that the proximity operators of the mixed norms can be computed efficiently. To bring out the power of regularization, sophisticated layered modeling of mixed norms that can capture inherent signal structure is a key ingredient, but the proximity operator of such a mixed norm is often unavailable (non-proximable). Our ERx decouples a layered non-proximable mixed norm into a norm and multiple epigraphical constraints. This enables us to handle a wide range of non-proximable mixed norms in optimization, as long as both the proximal operator of the outermost norm and the projection onto each epigraphical constraint are efficiently computable. Moreover, under mild conditions, we prove that ERx does not change the minimizer of the original problem despite relaxing equality constraints into inequality ones. We also develop new regularizers based on ERx: one is decorrelated structure-tensor total variation for color image restoration, and the other is amplitude-spectrum nuclear norm for low-rank amplitude recovery. We examine the power of these regularizers through experiments, which illustrates the utility of ERx.
description: accepted to IEEE Transactions on Signal Processing
PAPAYA TOLERANCE TO HURRICANE FORCE WINDS
Creators: name: Zimmerman, Thomas W.
name: Zimmerman, Thomas W.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Crop Production/Industries
subject: cyclone
subject: typhoon
subject: dwarf papaya
subject: compact papaya
subject: Carica papaya

description: During the mid and late 1990s the US Virgin Islands experienced frequent hurricanes which destroyed most of the papaya crops. From this experience, papaya breeding focused on developing short and compact lines with fruit set within one meter of the soil to reduce the center of gravity. A papaya plot was established in a double-row system, 2 m between plants in a row, 1 m between rows and 3 m between sets of double rows. Papaya trees seven months after transplanting, laden with fruit and in the first month of harvest, were subjected to hurricane Omar force winds in October 2008. Papaya varieties over two meters in height 'Tainung 1', 'Tainung 5', 'Known-You V and 'Kapoho'; had 10 to 20% broken stem, and 70 to 80% were blown down. Three compact papaya lines, 1-1.5 m tall, had no broken stems and only up to 15% of the plants were blown over. These results indicate that short productive trees, with a lower center of gravity, were able to tolerate hurricane force.
Agricultural Research and Development: Working in Partnerships to Optimize Limited Resourses
Creators: name: Lauckner, Bruce
name: Parham, Wendel
name: Lauckner, Bruce
name: Parham, Wendel
Publisher: name: Unknown
Year: 2004
Subjects: Agribusiness
Agricultural and Food Policy

description: For many years the performance of the agricultural sector in the Caribbean has been disappointing. In the past decade, this poor performance has been exacerbated by new global trading rules, which have accelerated the long decline in the production of the traditional crops, which once dominated the economic and social life in the Caribbean. In the wake of this poor performance has been the lack of rural development; whereas many urban dwellers have seen modern developments taking place, most rural areas show symptoms of neglect with the basic human amenities for modern living not provided. This situation will probably continue until agricultural industries can make a more meaningful contribution to the national economies. Agricultural research in the Caribbean is fragmented. Funding of this research has dropped sharply as international aid has become harder to access and government spending has been tightened. CARDI has suffered from these trends, but now realises that the way forward is to collaborate with national, other regional and extra regional agencies. Some examples of CARDI's collaborations are given and CARDI's vision to further develop collaborative efforts is briefly outlined. There are still examples of difficulties in trying to collaborate within the region; indeed there are pressures to compete with each other instead of working together. These pressures need to be overcome if agriculture is to survive and if rural areas are to gain prosperity.
CJK- Improved LO Parton Distributions in the Real Photon and Their Experimental Uncertainties
Creators: name: Cornet, F.
name: Jankowski, P.
name: Krawczyk, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new analysis of the radiatively generated, LO quark (u,d,s,c,b) and gluon densities in the real, unpolarized photon, improved in respect to our paper [1], is presented. We perform four new global fits to the experimental data for F2^gamma, two using a standard FFNS approach and two based on ACOT(chi) scheme [2], leading to the FFNS(CJK) and CJK models. We also present the analysis of the uncertainties of the new CJK 2 parton distributions due to the experimental errors, the very first such analysis performed for the photon. This analysis is based on the Hessian method, for a comparison for chosen cross-sections we use also the Lagrange method.
description: Prepared for Photon 2003: International Conference on the Structure and Interactions of the Photon (Including the 15th International Workshop on Photon-Photon Collisions), Frascati (Italy), 7-11 April 2003; 10 pages, Latex using espcrc2 style, 1 tex and 5 postscript figures; FORTRAN programs available at http://www.fuw.edu.pl/~pjank/param.html
High-order arbitrary Lagrangian-Eulerian discontinuous Galerkin methods for the incompressible Navier-Stokes equations
Creators: name: Fehn, Niklas
name: Heinz, Johannes
name: Wall, Wolfgang A.
name: Kronbichler, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This paper presents robust discontinuous Galerkin methods for the incompressible Navier-Stokes equations on moving meshes. High-order accurate arbitrary Lagrangian-Eulerian formulations are proposed in a unified framework for both monolithic as well as projection or splitting-type Navier-Stokes solvers. The framework is flexible, allows implicit and explicit formulations of the convective term, and adaptive time-stepping. The Navier-Stokes equations with ALE transport term are solved on the deformed geometry storing one instance of the mesh that is updated from one time step to the next. Discretization in space is applied to the time discrete equations so that all weak forms and mass matrices are evaluated at the end of the current time step. This design ensures that the proposed formulations fulfill the geometric conservation law automatically, as is shown theoretically and demonstrated numerically by the example of the free-stream preservation test. We discuss the peculiarities related to the imposition of boundary conditions in intermediate steps of projection-type methods and the ingredients needed to preserve high-order accuracy. We show numerically that the formulations proposed in this work maintain the formal order of accuracy of the Navier-Stokes solvers. Moreover, we demonstrate robustness and accuracy for under-resolved turbulent flows.
Structural and genetic modulators of voltage-gated potassium channel activation kinetics
Creators: name: Rezazadeh-Roudsari, Saman
Publisher: name: University of British Columbia
Year: 2011

description: Voltage-gated potassium (Kv) channels regulate membrane excitability and are therefore critical determinants of cellular function. However, the detailed mechanisms by which Kv channel activity is modulated are not well understood. This thesis investigates the modulation of activation of Kv1.2 and KCNQ1 channels. These studies reveal that Kv1.2 can activate via two different pathways that produce two distinct gating phenotypes/modes. In the 'slow' gating mode, the activation V 1/2 was shifted by +30 mV and activation kinetics were at least 20-fold slower than those of channels gating through the 'fast' mode. This offers an explanation for the wide variations in the reported activation kinetics of Kv1.2 in the literature. Introduction of a positive charge at or around threonine 252 (T252) in the S2-S3 cytoplasmic linker of Kv1.2 trapped channels in the 'fast' activation mode, suggesting that this region may act as the molecular switch in Kv1.2. Consistent with this, the S2-S3 linker was shown to mediate the gating-modifying effect of a mutation (T46V) in the cytoplasmic T1 domain of Kv1.2. Excision of patches containing Kv1.2 also trapped channels in the 'fast' gating mode, indicating cytoplasmic regulators may also modify the gating mode via the S2-S3 linker. We have ruled out cytoplasmic regulation by PIP₂, polyamines and phoshporylation. Interestingly, one kinase inhibitor, KN-93, a commonly used calcium/calmodulin-dependent protein kinase II inhibitor, was found to be a direct extracellular blocker of many different Kv channels including Kv1.2. Finally, a novel missense mutation at the intracellular end of the S3 helix in a mutant KCNQ1 channel (V205M), detected in an aboriginal community with a high prevalence of long QT syndrome and sudden death, was shown to cause a depolarizing shift in the voltage dependence of activation and a slowing of activation kinetics. This resulted in reduced repolarization reserve during the cardiac action potential and a likely increased susceptibility to the initiation of arrhythmias. The close positioning of this mutation to the S2-S3 linker provides a putative structural working model for the gating switch in Kv1.2 that involves changes in the hydrophobic packing of the S3 helix and its influence on S4 voltage-sensor movement.
Exceptional point enhanced optical gyroscope in mechanical PT-symmetric system
Creators: name: Mao, Xuan
name: Qin, Guo-qing
name: Zhang, Hao
name: Yang, Hong
name: Wang, Min
name: Long, Gui-lu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: As an important device for detecting rotation, high sensitivity gyroscope is required for practical applications. In recent years, exceptional point (EP) shows its potential in enhancing the sensitivity of sensing in optical cavity. Here we propose an EP enhanced optical gyroscope based on mechanical PT-symmetric system in microcavity. By pumping the two optical modes with different colors, i.e. blue and red detuning, an effective mechanical PT-symmetric system can be obtained and the system can be prepared in EP with appropriate parameters. Compared with the situation of diabolic point, EP can enhance the sensitivity of gyroscope with more than one order of magnitude in the weak perturbation regime. The results show the gyroscope can be enhanced effectively by monitoring mechanical modes rather than optical modes. Our work provides a promising approach to design gyroscope with higher sensitivity in optical microcavity and has potential values in some fields including fundamental physic and precision measurement.
description: 9 pages, 5 figures, comments are welcome
Mucuna pruriens Detoxification through Ensiling
Creators: name: Huisden, Christian M.
name: Adesogan, Adegbola T.
name: Szabo, Nancy J.
name: Huisden, Christian M.
name: Adesogan, Adegbola T.
name: Szabo, Nancy J.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Mucuna pruriens
subject: detoxification
subject: ensiling

description: Mucuna pruriens is grown for food and feed despite its L-Dopa concentration (2-6% by wt), which is toxic to monogastrics. The aim of this study was to determine if the L-Dopa concentration of Mucuna could be reduced by ensiling. The objective of Experiment 1 was to examine how long it takes to decrease the pH of ensiled Mucuna to 4.5. Crushed Mucuna beans (6 mm) were ensiled in the dark at room-temperature (18 to 25°C) for 0, 3, 7, 14, 21, and 28 days in vacuum-sealed bags. A pH of 4.5 and an L-Dopa concentration of 1.3% (54%) reduction) were recorded after 28 days. The objective of Experiment 2 was to study the effect of particle size of ensiled Mucuna on L-Dopa concentration and fermentation and nutritional characteristics. Ensiling Mucuna that had been ground to particle sizes of 2, 4 and 6 mm for 28 days decreased the L-Dopa concentration from 2.8%) in the unesiled bean to 1.2, 1.6, and 1.1%, respectively. Ensiling also reduced the water-soluble carbohydrate (WSC) concentration and pH and increased the ammonia-N (NH3N) concentration. Neither ensiling nor particle size affected concentrations of ether extract (EE; 5%), CP (23-25%), starch (38-40%), and neutral detergent fiber (NDF; 17- 20%). Dry matter losses (< 1%) and mold or yeast counts were unaffected by particle size. Aerobic stability was maintained beyond 657 hours in all treatments and the lactate:acetate ratio of all samples exceeded 3.0. In conclusion, ensiling Mucuna bean for 28 days reduced the L-Dopa concentration by 43 to 61% while preserving most nutrients. Particle size had minimal effects on nutritional composition or fermentation indices.
En revenant de la foire (suite)
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Abstract
Weighted evolving networks: coupling topology and weights dynamics
Creators: name: Barrat, Alain
name: Barthelemy, Marc
name: Vespignani, Alessandro
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a model for the growth of weighted networks that couples the establishment of new edges and vertices and the weights' dynamical evolution. The model is based on a simple weight-driven dynamics and generates networks exhibiting the statistical properties observed in several real-world systems. In particular, the model yields a non-trivial time evolution of vertices' properties and scale-free behavior for the weight, strength and degree distributions.
description: 4 pages, 4 figures
Trichaphodioides cinerascens
Creators: name: Gordon, Robert D.
name: Bordat, Patrice
name: Dellacasa, Giovanni
name: Dellacasa, Marco
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Aphodiidae
Trichaphodioides
Trichaphodioides cinerascens

description: Trichaphodioides cinerascens (Klug)
 Aphodius cinerascens Klug, 1855: 656.
 Trichaphodioides cinerascens: Paulian, 1942: 53.
 Specimens examined (3): Laikipia, MRC, 1800 m, N00 o 17’ - E36 o 53’, 1-31.III.2001, leg. Kadir Abdi, Burchell’s Zebra dung (1); Laikipia, MRC, 1800 m, N00 o 17’ - E36 o 53’, 1-13.V.2002, #7, leg. R. Gordon, African Elephant dung (2). (NMK, two specimen lost in shipment).
 Geographical distribution: Eastern, Western, central and southern Africa.
 Dung preference: Probably a dung generalist, found in elephant and zebra dung.
description: Published as part of Gordon, Robert D., Bordat, Patrice, Dellacasa, Giovanni & Dellacasa, Marco, 2008, Dung beetles (Coleoptera: Scarabaeidae: Aphodiinae) of the Mpala Research Centre and environs, Laikipia District, Kenya, pp. 1-15 in Insecta Mundi 2008 (28) on page 12, DOI: 10.5281/zenodo.4532811
title: Investigating Applicants' Perceptions of the Recruitment and Selection Process of Headteachers in English Secondary Schools: Looking at Headship Through a Leadership Identity Lens
Creators: name: Kelly, Bethany Katherine
Publisher: name: The Open University
Year: 2018

description: Recruiting headteachers in the UK continues to be a challenge. The route to headship is often considered a mysterious and arbitrary process. It is challenging for a first time applicant to find ways to convey their leadership potential, through a selection process that has barely changed for over 20 years. This study reviews this process by drawing upon international research on principal appointments (Walker and Kwan, 2012, Blackmore et al., 2006, Browne-Ferrigno, 2003) and compares this with research on different perceptions of headship. This review is considered in light of leadership identity theory (Ibarra, 2003, Lord and Hall, 2005) and asks how this process looks from the perspective of the headship applicant. In what sense does an applicant have an understanding of their own leadership identity and are they confident that this can be communicated when applying for the headteacher role? This research examines the dual aspect of the recruitment and selection of headteachers. I have constructed a conceptual framework to map the pathway that the applicant takes and set this against the recruitment process to follow the applicant’s journey through these stages. The research brings together three different investigations; an online questionnaire of headship applicants, a textual analysis of headship recruitment packs, and follow-up semi-structured interviews with applicants, to form a multiple case design. Bringing these parts together, I examine how effective this process is, particularly against an interpretivist perspective of headship. Main findings suggest that certain models of leadership are communicated more effectively to applicants through the recruitment process than others, that the level of support for aspiring headteachers is hit and miss, depending upon their school context, and that the recruitment process would benefit from an integration with the language of leadership identity. Recommendations are made for revisions to initial teacher training as well as headship preparation training. The research will contribute to the field of educational leadership in what will be practical ways, for example, helping future applicants with preparation for senior leadership.
Land Use Planning for Agricultural Diversification of Sugar Estates in Trinidad and Tobago
Creators: name: Persad, Seunarine
name: Persad, Seunarine
Publisher: name: Unknown
Year: 2004
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: International Relations/Trade
subject: Agricultural diversification
subject: Soil management
subject: Land degradation
subject: Crop selection

description: Restructuring of the sugar industry in Trinidad and Tobago has released 12,158 hectares of sugarcane lands for agricultural diversification. Caroni (1975) Limited, a state enterprise sugar company controls 31,000 hectares, representing 25% of the best available arable lands in the country. Soil, land capability and agro-ecological analyses conducted on Caroni (1975) land holdings indicate that 67% of the lands are in Class III and IV, representing good agricultural lands with moderate soil fertility, and 33% of the lands are in Class V, VI and VII, depicting marginal agricultural lands. Continuous sugarcane production with sub-optimal soil fertility management programmes has resulted in soil nutrient and organic matter depletion of lands, soil acidification, and land degradation with a consequent reduction in agricultural productivity. The technical and operational considerations for proposed diversification programmes to root crops, rice, vegetable crops, tropical fruits and livestock in relation to water management, soil technology for heavy clays, crop selection, farmer training, extension, credit and support systems are presented. The implications for food and nutrition security, and sustainable production systems in Trinidad and Tobago are highlighted.
Superconformal Selfdual Sigma-Models
Creators: name: Paulot, Louis
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A range of bosonic models can be expressed as (sometimes generalized) $σ$-models, with equations of motion coming from a selfduality constraint. We show that in D=2, this is easily extended to supersymmetric cases, in a superspace approach. In particular, we find that the configurations of fields of a superconformal $\mathfrak{G}/\mathfrak{H}$ coset models which satisfy some selfduality constraint are automatically solutions to the equations of motion of the model. Finally, we show that symmetric space $σ$-models can be seen as infinite-dimensional $\tfG/\tfH$ models constrained by a selfduality equation, with $\tfG$ the loop extension of $\mathfrak{G}$ and $\tfH$ a maximal subgroup. It ensures that these models have a hidden global $\tfG$ symmetry together with a local $\tfH$ gauge symmetry.
description: 21 pages; v2 few corrections and references added; v3 exposition changes