cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Triterpenoids from leaves of Paramignya trimera with their alpha-glucosidase inhibition: in vitro and in silico aspects
Creators: name: Nguyen, Ngoc.-Hong
name: Duong, Thuc-Huy
name: Sichaem, Jirapast
name: Nguyen, Tuan-Dat
name: Duong, Gia-Huy
name: Thi-Phuong, Nguyen
name: Ngo, Thi-My-Duyen
name: Tran, Thi-Cam-Tu
name: Nguyen, Huy Truong
Publisher: name: Taylor & Francis
Year: 2025
Subjects: Biochemistry
Space Science
Pharmacology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified

description: From the leaves of Paramignya trimera, a new C23-noreuphane-type triterpenoid, paramignyene (1), together with four known triterpenoids, kansenone (2), eupha-8,25-diene-3β,24-diol-7-one (3), eupha-7,25-diene-3,24-diol (4), and β-sitosterol (5), were isolated and structurally elucidated. Paramignyene (1) represents the first C23-noreuphane-type triterpenoid in nature. Their chemical structures were established using comprehensive spectroscopic data (1D- and 2D-NMR and HRESIMS). All isolated compounds were evaluated for their alpha-glucosidase inhibition. Only compounds 4 and 5 exhibited moderate activity, with IC50 values of 86 and 220 µM, respectively. Molecular docking analysis elucidates the inhibitory mechanism of the tested compounds. Compounds 1–5 were evaluated for cytotoxicity against the HepG2 and Hek293 cell lines. Compound 4 exhibited moderate cytotoxic activity against HepG2, while the other compounds demonstrated no cytotoxic activity. Furthermore, none of the compounds demonstrated any activity against normal cell line Hek293.
title: An investigation of some differences in A-level mathematics syllabuses in England and Wales
Creators: name: Jennings, Trevor Vernon
Publisher: name: The Open University
Year: 1996

description: At the time when this study began, there were nine boards offering Advanced Level Mathematics syllabuses. Some of the boards offered three,and sometimes four versions of A-level Mathematics. The study looks at these various forms from a number of different standpoints.

The first of these is a consideration of the 'readability' of the question papers themselves, using the Cloze Procedure. The data is analysed by a three-way, fully crossed, analysis of variance.

The work then moves on to consider the structure of the various papers.It then proceeds to analyse questions from the papers under various headings. The method is a substantial modification of a method used by the GCE examination boards in cross-moderation studies.

A questionnaire was developed to explore the opinions of sixth form teachers, regarding the various versions of A-level Mathematics. The opinions of university staff were also sought. The question as to whethersome A-level courses are better preparation for university mathematics courses is addressed. Results of students at A-level and in the first year university mathematics examinations are compared. The students who participated in the 'readability' exercise were also interviewed, after looking at further questions from a selection of A-level Mathematics papers.

During the course of this study, a number of boards have started to offer modular, or unit based, courses. This significant development is considered towards the end of the study. Two schools and a sixth form college were visited, each one using a different modular A-level syllabus. An account of the observations is given.

The study closes with a discussion of the findings from the various themes and makes suggestions for possible improvements.
Pteroneta
Creators: name: Versteirt, V.
name: Deeleman-Reinhold, C.
name: Baert, L.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Clubionidae
Pteroneta

description: Key to male Pteroneta of the Southeast Asian region
1. Number of spines on distal side of the chelicerae less than 10................................................................................................ 2
– Number of spines on distal side of the chelicerae more than 10 (see Fig. 1)............................................................................. 5
 2. Distal spines on chelicerae absent............. Pteroneta saltans
– Distal spines on chelicerae present....................................... 3
 3. Tibial apophysis simple, elongated and ending in a sharp tip.................................................................................... P. tertia
– Tibial apophysis with bifid tip.............................................. 4
 4. Tibial apophysis very small and digit form.... P. ultramarina
 – Finger like tibial apophysis with round tip, embolus beak (sickle) shaped (Fig. 6 A–B)........................................... P brevichela
 5. Chelicerae extremely long and narrow (Fig. 1) P. longichela
– Chelicerae shorter and broader............................................. 6
 6. Semi lunar shaped embolus with long tip, absence of additional apophysis, tibial apophysis square like (Fig. 8 A–B).................................................................................... P. madangiensis
– Half moon shaped embolus with short tip............................ 7
 7. Presence of a large additional (membranous) apophysis, half moon shaped embolus with short tip, square like tibial apophysis (Fig. 7 A–B)............................................................ P. baiteta
 – Dorsal prong off blade like long tibial apophysis, long tegulum, half moon shaped embolus with very short tip..... P. spinosa
description: Published as part of Versteirt, V., Deeleman-Reinhold, C. & Baert, L., 2008, Description Of New Species Of The Genus Pteroneta (Arachnida: Araneae: Clubionidae) From Papua New Guinea, pp. 307-315 in Raffles Bulletin of Zoology 56 (2) on page 308, DOI: 10.5281/zenodo.4508188
Basic principles for responsible research data management
Creators: name: Wynstra, Finn
name: Donzel, Monique Van
name: Braskova, Miriam
Publisher: name: Erasmus University Rotterdam (EUR)
Year: 2020
Subjects: subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: FOS: Economics and business
subject: 150399 Business and Management not elsewhere classified
subject: Uncategorized

description: A set of guiding principles for responsible research data management.
Ramsey theory for layered semigroups
Creators: name: Barrett, Jordan Mitchell
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 05D10 (Primary), 03H05, 22A20, 54J05, 54D80 (Secondary)

description: We further develop the theory of layered semigroups, as introduced by Farah, Hindman and McLeod, providing a general framework to prove Ramsey statements about such a semigroup $S$. By nonstandard and topological arguments, we show Ramsey statements on $S$ are implied by the existence of "coherent" sequences in $S$. This framework allows us to formalise and prove many results in Ramsey theory, including Gowers' $\mathrm{FIN}_k$ theorem, the Graham-Rothschild theorem, and Hindman's finite sums theorem. Other highlights include: a simple nonstandard proof of the Graham-Rothschild theorem for strong variable words; a nonstandard proof of Bergelson-Blass-Hindman's partition theorem for located variable words, using a result of Carlson, Hindman and Strauss; and a common generalisation of the latter result and Gowers' theorem, which can be proven in our framework.
description: 25 pages, 0 figures
Online Guest Detection in a Smart Home using Pervasive Sensors and Probabilistic Reasoning
Creators: name: Renoux, Jennifer
name: Köckemann, Uwe
name: Loutfi, Amy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Smart home environments equipped with distributed sensor networks are capable of helping people by providing services related to health, emergency detection or daily routine management. A backbone to these systems relies often on the system's ability to track and detect activities performed by the users in their home. Despite the continuous progress in the area of activity recognition in smart homes, many systems make a strong underlying assumption that the number of occupants in the home at any given moment of time is always known. Estimating the number of persons in a Smart Home at each time step remains a challenge nowadays. Indeed, unlike most (crowd) counting solution which are based on computer vision techniques, the sensors considered in a Smart Home are often very simple and do not offer individually a good overview of the situation. The data gathered needs therefore to be fused in order to infer useful information. This paper aims at addressing this challenge and presents a probabilistic approach able to estimate the number of persons in the environment at each time step. This approach works in two steps: first, an estimate of the number of persons present in the environment is done using a Constraint Satisfaction Problem solver, based on the topology of the sensor network and the sensor activation pattern at this time point. Then, a Hidden Markov Model refines this estimate by considering the uncertainty related to the sensors. Using both simulated and real data, our method has been tested and validated on two smart homes of different sizes and configuration and demonstrates the ability to accurately estimate the number of inhabitants.
Development, validation, and application of a multimatrix UHPLC-MS/MS method for quantification of Datura-type alkaloids in food
Creators: name: Malysheva, Svetlana V.
name: Streel, Camille
name: Andjelkovic, Mirjana
name: Masquelier, Julien
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: A quantitative ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was developed and validated for the determination of tropane alkaloids (TAs), atropine and scopolamine, in a variety of food products. The sample preparation of cereal-based food, oilseeds, honey, and pulses consisted of a solid–liquid extraction with an acidified mixture of methanol and water, while an additional step of solid-phase extraction on a cation-exchange sorbent was introduced in the treatment of teas and herbal infusions, aromatic herbs, spices and food supplements. The limits of quantification of the method varied from 0.5 to 2.5 µg kg−1. Apparent recovery was in the range of 70–120%, and repeatability and intermediate precision were below 20%. The method was successfully applied in a proficiency testing exercise as well as in the analysis of various commercial foods. Only 26% of the analysed food samples contained one or both TAs. The mean concentrations for atropine and scopolamine amounted to 21.9 and 6.5 µg kg−1, respectively, while the maximum concentrations were 523.3 and 131.4 µg kg−1, respectively. Overall, the highest levels of TA sum were found in an herbal infusion of fennel and a spice mix containing fennel and anise seeds.
On the monoid of cofinite partial isometries of $\mathbb{N}$ with the usual metric
Creators: name: Gutik, Oleg
name: Savchuk, Anatolii
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M18, 20M20, 20M30

description: In the paper we show that the monoid $\mathbf{I}\mathbb{N}_{\infty}$ of all partial cofinite isometries of positive integers does not embed isomorphically into the monoid $\mathbf{ID}_{\infty}$ of all partial cofinite isometries of integers. Moreover, every non-annihilating homomorphism $\mathfrak{h}\colon \mathbf{I}\mathbb{N}_{\infty}\to\mathbf{ID}_{\infty}$ has the following property: the image $(\mathbf{I}\mathbb{N}_{\infty})\mathfrak{h}$ is isomorphic either to the two-element cyclic group $\mathbb{Z}_2$ or to the additive group of integers $\mathbb{Z}(+)$. Also we prove that the monoid $\mathbf{I}\mathbb{N}_{\infty}$ is not finitely generated, and, moreover, monoid $\mathbf{I}\mathbb{N}_{\infty}$ does not contain a minimal generating set.
description: 11 pages. arXiv admin note: text overlap with arXiv:1909.08823, arXiv:1904.11802
Robust Spatial-spread Deep Neural Image Watermarking
Creators: name: Plata, Marcin
name: Syga, Piotr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Multimedia (cs.MM)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Watermarking is an operation of embedding an information into an image in a way that allows to identify ownership of the image despite applying some distortions on it. In this paper, we presented a novel end-to-end solution for embedding and recovering the watermark in the digital image using convolutional neural networks. The method is based on spreading the message over the spatial domain of the image, hence reducing the "local bits per pixel" capacity. To obtain the model we used adversarial training and applied noiser layers between the encoder and the decoder. Moreover, we broadened the spectrum of typically considered attacks on the watermark and by grouping the attacks according to their scope, we achieved high general robustness, most notably against JPEG compression, Gaussian blurring, subsampling or resizing. To help us in the models training we also proposed a precise differentiable approximation of JPEG.
description: The article was accepted on TrustCom 2020: The 19th IEEE International Conference on Trust, Security and Privacy in Computing and Communications
Organisation von Wertschöpfungsketten in der Gemüseproduktion Das Beispiel Spargel
Creators: name: Prechtel, Bianca
name: Kayser, Maike
name: Theuvsen, Ludwig
name: Prechtel, Bianca
name: Kayser, Maike
name: Theuvsen, Ludwig
Publisher: name: Unknown
Year: 2013
Subjects: Agribusiness

description: This paper analyses the influencing factors of farmers’ use of price hedging instruments (PHIs) based upon a discrete choice experiment with German grain farmers. A mixed logit model is used to determine whether farmers’ choices of PHIs against cash sales are influenced by their price expectation, their risk attitude and their available storage capacities. The results show that farmers with a price expectation below the actual price level have a higher preference for using PHIs against cash sales in general and that the individual degree of risk aversion can have a significant impact on farmers’ choices of a specific PHI. A generally lower preference of farmers with available storage capacities for using PHIs as assumed in many theoretical contributions in the literature, however, cannot be confirmed.
Green Function in the Resonance Region
Creators: name: Cirigliano, V.
name: Ecker, G.
name: Eidemuller, M.
name: Pich, A.
name: Portoles, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyse the three-point function of vector, axial-vector and pseudoscalar currents. In the spirit of large N_C, a resonance dominated Green function is confronted with the leading high-energy behaviour from the operator product expansion. The matching is shown to be fully compatible with a chiral resonance Lagrangian and it allows to determine some of the chiral low-energy constants of O(p^6).
description: 13 pages, 2 figures. Published version. Results and conclusions unchanged
Langfristige Rohstoffsicherung in der Supply Chain Biogas: Status Quo und Potenziale vertraglicher Zusammenarbeit
Creators: name: Granoszewski, Karol
name: Spiller, Achim
name: Granoszewski, Karol
name: Spiller, Achim
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Supply Chain Management
subject: Vertikale Koordination
subject: Vertragsgestaltung
subject: Bioenergie
subject: Biogas

description: Im Zuge des Ausbaus der Biogaserzeugung steigt die Nachfrage nach landwirtschaftlicher Biomasse. Besonders die vermehrt auf den Biogasmarkt tretenden außerlandwirtschaftlichen Biogasbetreiber stehen vor der Herausforderung, ihren Substratbedarf abzusichern. Eine Ana- lyse der Struktur und Entwicklungen entlang der Supply Chain Biogas verdeutlicht die Notwendigkeit zur vertraglichen Zusammenarbeit als Form der koordinierten Rohstoffbe- schaffung. Da Biomasseabnehmer i. d. R. nur über wenige Erfahrungen mit Landwirten als Vertragspartnern verfügen, wurden sowohl deren generelle vertragliche Einstellungen als auch deren spezielle Präferenzen hinsichtlich konkreter Inhalte von Biomasselieferverträgen analysiert. Eine Befragung von 209 landwirtschaftlichen Betriebsleitern gibt über beides Auf- schluss. Landwirte beurteilen vertragliche Kooperationen infolge differenzierter Freiheits- und Risikopräferenz unterschiedlich. Vertragslieferanten zeichnen sich durch eine geringe Freiheitspräferenz, hohe Risikoaversion und vertikale Orientierung aus. Hinsichtlich der Vertragsinhalte favorisieren sie überwiegend kurzfristige Verträge mit marktorientierter Preisanpassung. Für potenzielle Biomasseerzeuger sind neben einem hohen Preisniveau ferner die landwirtschaftliche und regionale Orientierung des Abnehmers bei Vertragsüberlegungen relevant. Es werden sowohl theoretische Implikationen als auch Empfehlungen hinsichtlich der Akquise von Biomasselieferanten und der Ausgestaltung von Vertragsangeboten gegeben.
AWESOME: A General Multiagent Learning Algorithm that Converges in Self-Play and Learns a Best Response Against Stationary Opponents
Creators: name: Conitzer, Vincent
name: Sandholm, Tuomas
Publisher: name: arXiv
Year: 2003
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences
subject: I.2.11

description: A satisfactory multiagent learning algorithm should, {\em at a minimum}, learn to play optimally against stationary opponents and converge to a Nash equilibrium in self-play. The algorithm that has come closest, WoLF-IGA, has been proven to have these two properties in 2-player 2-action repeated games--assuming that the opponent's (mixed) strategy is observable. In this paper we present AWESOME, the first algorithm that is guaranteed to have these two properties in {\em all} repeated (finite) games. It requires only that the other players' actual actions (not their strategies) can be observed at each step. It also learns to play optimally against opponents that {\em eventually become} stationary. The basic idea behind AWESOME ({\em Adapt When Everybody is Stationary, Otherwise Move to Equilibrium}) is to try to adapt to the others' strategies when they appear stationary, but otherwise to retreat to a precomputed equilibrium strategy. The techniques used to prove the properties of AWESOME are fundamentally different from those used for previous algorithms, and may help in analyzing other multiagent learning algorithms also.
Split Ga vacancies and the unusually strong anisotropy of positron annihilation spectra in $\boldsymbolβ$-Ga$_2$O$_3$
Creators: name: Karjalainen, Antti
name: Prozheeva, Vera
name: Simula, Kristoffer
name: Makkonen, Ilja
name: Callewaert, Vincent
name: Varley, Joel B.
name: Tuomisto, Filip
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a systematic first principles study on positron annihilation parameters in the $β$-Ga$_2$O$_3$ lattice and Ga mono-vacancy defects complemented with orientation-dependent experiments of the Doppler broadening of the positron-electron annihilation. We find that both the $β$-Ga$_2$O$_3$ lattice and the considered defects exhibit unusually strong anisotropy in their Doppler broadening signals. This anisotropy is associated with low symmetry of the $β$-Ga$_2$O$_3$ crystal structure that leads to unusual kind of one-dimensional confinement of positrons even in the delocalized state in the lattice. In particular, the split Ga vacancies recently observed by scanning transmission electron microscopy produce unusually anisotropic positron annihilation signals. We show that in experiments, the positron annihilation signals in $β$-Ga$_2$O$_3$ samples seem to be often dominated by split Ga vacancies.
description: Third revised version submitted to Physical Review B on 4 November 2020
Pteroneta
Creators: name: Versteirt, V.
name: Deeleman-Reinhold, C.
name: Baert, L.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Clubionidae
Pteroneta

description: Key to female Pteroneta of the Southeast Asian region
Females have to be distinguished by the shape of their primary reproduction organs
1. Insemination ducts coiled (making a loop), entering lower spermathecae apically............................................................2
– Insemination ducts shaped differently.................................. 3
 2. Lower spermathecae smaller than upper ones (Fig. 5 C)...................................................................... Pteroneta longichela
 – Upper and lower spermathecae equally in size (Fig 6 C).................................................................................... P. brevichela
3. Upper spermathecae circular shaped.................................... 4
 – Upper spermathecae more or less triangular, epigyne openings more chitinous, ducts slightly coiled, ending centrally (Fig. 7 A–B)........................................................................ P. baiteta
4. Upper and lower spermathecae more or less same size, circular; adjacent.................................................................................. 5
– Upper and lower spermathecae differ in shape and size...... 6
 5. Insemination duct curved but not coiled................ P. saltans
 – Insemination duct more hook like............................. P. tertia
 6. Upper spermathecae largest, upper and lower pair spermathecae not adjacent............................................................ P. spinosa
– Lower spermathecae largest.................................................. 7
 7. Insemination ducts straight, long, lower spermathecae not adjacent to upper one and rectangular shaped (Fig. 8 A–B).......................................................................... P madangiensis
 – Insemination ducts more curved, shorter, both spermathecae adjacent, lower ones oval shaped................... P. ultramarina
description: Published as part of Versteirt, V., Deeleman-Reinhold, C. & Baert, L., 2008, Description Of New Species Of The Genus Pteroneta (Arachnida: Araneae: Clubionidae) From Papua New Guinea, pp. 307-315 in Raffles Bulletin of Zoology 56 (2) on pages 308-310, DOI: 10.5281/zenodo.4508188
Sweeteners in Brazilian processed foods and beverages: prevalence, profile and concomitant addition of sugars and nutritional claims
Creators: name: de Sousa, Roberto Cesar Santos
name: Gloria, Maria Beatriz Abreu
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Brazil is experiencing an increased prevalence of overweight and obesity. To overcome these health problems, several strategies have been implemented, including incentives to reduce sugar intake and new packaging labeling. This has promoted an increase in the use of low or non-caloric sweeteners (LNCS). In this study, the use of LNCS in six Brazilian food groups (non-alcoholic beverages, dairy products, baked goods, confectionery, cereals, and condiments) was investigated through label declarations. Three supermarkets were visited in Belo Horizonte, MG, Brazil. Ten out of the 16 LNCS allowed by the Brazilian legislation were declared. Altogether, among the 441 products included, 17.7% contained at least one LNCS, with an average of 2.21 LNCS per sweetened product. Non-alcoholic beverages (37.2%) and dairy products (29.5%) had the highest LNCS occurrence. Combinations of two, three, four, and seven LNCS were found. Artificial sweeteners represented 87.8% of the declared LNCS, with a higher prevalence of acesulfame-K, followed by cyclamate, and sucralose, respectively. Meanwhile, 53.9% of 78 products containing LNCS also had added sugars, and 70.5% used nutritional claims about reduced sugars and/or calories. This scenario highlights the importance of continuous monitoring of LNCS in foods and beverages as front-of-package labeling is not fully implemented yet.
Testing the Structure of the Scalar Meson $K_0^*(1430)$ in $τ\to K_0^*(1430)ν$ Decay
Creators: name: Yang, Mao-Zhi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The decay constant of $K_0^*(1430)$ is the key quantity to determine the production rate of $K_0^*(1430)$ in $τ$ decays. By assuming $K_0^*(1430)$ is the lowest scalar bound state of $s\bar{q}$, the decay constant can be calculated reliably in QCD sum rule. Then the decay branching ratio of $τ\to K_0^*(1430)ν$ is predicted to be about $(7.9\pm 3.1)\times 10^{-5}$. If this branching ratio can be measured by experiment, it should be helpful to make clear the structure of $K_0^*(1430)$.
description: 4 pages, Accepted for pubication in Mod. Phys. Lett. A
Gas Dynamical Simulations of the Large and Little Homunculus Nebulae of Eta Carinae
Creators: name: González, R. F.
name: Pino, E. M. de Gouveia Dal
name: Raga, A. C.
name: Velázquez, P. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We here present two-dimensional, time-dependent radiatively cooling hydrodynamical simulations of the large and little Homunculus nebulae around $η$ Carinae. We employ an alternative scenario to previous interacting stellar wind models which is supported by both theoretical and observational evidence, where a non-spherical outburst wind (with a latitudinal velocity dependence that matches the observations of the large Homunculus), which is expelled for 20 years, interacts with a pre-eruptive slow wind also with a toroidal density distribution, but with a much smaller equator-to-polar density contrast than that assumed in previous models. A second eruptive wind with spherical shape is ejected about 50 years after the first outburst, and causes the development of the little internal nebula. We find that, as a result of an appropriate combination of the parameters that control the degree of asymmetry of the interacting winds, we are able to produce not only the structure and kinematics of both Homunculus, but also the high-velocity equatorial ejecta. These arise from the impact between the non-spherical outburst and the pre-outburst winds in the equatorial plane.
description: ApJ Lett. in press
title: It's just a word : CALL, French verbs and mixed-ability pupils
Creators: name: Metcalfe, Peter Anthony
Publisher: name: The Open University
Year: 1997

description: This thesis follows the trail of a perennial problem in the written work of pupils studying GCSE French, and suggests a CALL solution. The motivation for the research lies in the decline of grammatical accuracy, particularly in verb use, in the French produced by mixed-ability pupils and university students alike.Theories of language acquisition are assessed and a limited amount of guidance emerges. French GCSE Examiners' Reports then provide a firm foundation for research with their suggestion that the rise in oral work has affected written standards. A review of the literature reveals a wide range of barriers to verb learning. These can be classified as linguistic, psycholinguistic and pedagogic.One of the most impenetrable barriers is the redundancy of many verb endings. Empirical evidence from written and interview data is presented to show the startling kinds of misconceptions held by many pupils about verbs,and the complex of systems learners devise to solve problems.

The thesis then proposes an explicit grammar-teaching approach based on principles of pedagogical grammar. Current Computer Assisted Language Learning (CALL) approaches to verb teaching offer admirable formal practice for able pupils but do not cater for the difficulties experienced by less able learners, who may therefore be disenfranchised. Detailed proposals are given for the creation of 'mixed-ability CALL' for verb learning, followed by a description of the design and production processes of three new programs aimed at less able pupils. Further empirical work is undertaken with GCSE pupils in order to assess the effects of tutorial, game and 'cognitive' CALL approaches. The quantitative data show that written performance can improve after using these programs. However, the most striking result of CALL intervention is the transformation of weak pupils' spoken metalanguage from restricted grammatical expression to accurate verb articulation within a short space of time.
Residue changes and processing factors of thirteen pesticides during different tomato pickle processes
Creators: name: Maden, Busra
name: Kumral, Aysegul Yildirim
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Tomatoes grown in an experimental greenhouse were sprayed with 13 selected pesticides at the recommended field doses, and used for pickle processing. Three different pickle processing techniques (natural fermentation, starter added fermentation and canning) were applied during the trials. Two strains of Lactobacillus plantarum were used as starter cultures in starter added fermentation trials. Changes in pesticide residues, pH levels and microbiological populations were periodically analysed and processing factors (PFs) were calculated at the end of the processing period. Yeasts-moulds and enterobacteria were not detected in any of the trials. Mesophilic aerobic bacteria were detected during both fermentation treatments (natural and starter added), whereas lactic acid bacteria were only observed in starter added trials. The initial pH levels of brines in all treatments were measured as 2.7 at the beginning of the processes and changed depending on the type of treatment. Lower pH values were detected in starter added treatments. Following the harvest day, significant reductions were observed in pesticide concentrations during both types of fermentation (natural and starter added) trials (p < .01) with the exception of bifenazate and abamectin. But on the contrary, residue changes were not significant (p > .05) throughout the canning process. Since bifenazate and abamectin are more stable at lower pH, their residue levels were not affected by the methods applied during fermentation processes. Only PF of canning process for bifenazate was higher than 1 and calculated as 1.17. All other PF values were lower than 1, indicating that the treatments caused degradation of the active compounds. Processing methods affected the pesticide residue levels in different ways, as a result of various degradation mechanisms.
Vortex structures in neutron stars : or how I learned to stop worrying and just write it already
Creators: name: Charbonneau, James
Publisher: name: University of British Columbia
Year: 2011

description: We suggest a mechanism that may resolve a conflict between the precession of a neutron star and the widely accepted idea that protons in the bulk of the neutron star form a type-II superconductor. We will show that if there is a persistent, non-dissipating current running along the magnetic flux tubes the force between magnetic flux tubes may be attractive, resulting in a type-I, rather than a type-II, superconductor. If this is the case, the conflict between the observed precession and the canonical estimation of the Landau-Ginzburg parameter κ > 1 /[square root of 2] (which suggests type-II behaviour) will automatically be resolved. We calculate the interaction between two vortices, each carrying a current j , and demonstrate that when j > [formula omitted], where q is the charge of the Cooper pair and λ is the Meissner penetration depth, a superconductor is always type-I, even when the cannonical [sic] Landau- Ginzburg parameter κ indicates type-II behaviour. If this condition is met, the magnetic field is completely expelled from the superconducting regions of the neutron star. This leads to the formation of the an intermediate state, where alternating domains of superconducting matter and normal matter coexist. We also discuss how these currents might lead to more exotic vortex structures in neutron stars.
SATISFACCION LABORAL DEL TRABAJADOR: UN ESTUDIO DE CASO EN INVERNADEROS SONORENSES
Worker job satisfaction: A case study in sonorense´s greenhouse
Creators: name: Morales, Carlos Gabriel Borbón
name: Armenta, Marisol Arvizu
name: Figueroa, Jorge Alán García
name: Morales, Carlos Gabriel Borbón
name: Armenta, Marisol Arvizu
name: Figueroa, Jorge Alán García
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: job satisfaction, workers, greenhouses

description: In Mexico, vegetable production has proven to be an activity that involves generating high value and incorporating a work force skilled in packaging processes and cutting work. However, for vegetable exports to the United States, following the events of September 11, 2001, gave rise to policy tightening, as in the case of bioterrorism law. This is how the United States has developed protocols that included the requirements for the entry of these products. Such is the case of quality standards, health and safety and social responsibility criteria, involving respect for human rights of farm workers, paying fair wages and the prohibition of child labor. The forms they assume job satisfaction in objective conditions relate to: occupational health and safety, labor, etc. and subjective conditions of workers in the sense of how they live. The aim of this study is to assess job satisfaction in the areas of objective and subjective conditions in order to provide an overview of the situation of this category in greenhouses southern Sonora. A questionnaire rose in a group of five companies, the questionnaire collects elements by the CEMEFI evaluation criteria, and ISO 26000. The findings are that even though there is a regular atmosphere in the objective conditions, in subjective conditions sometimes it is not so. The document consists of six sections: Introduction, overview of protected agriculture in Mexico, the law of bioterrorism; the existing standards of social responsibility; description of the sample and sample design; results and conclusions.
description: ISSN-1405-9282
Quantum information processing with bosonic qubits in circuit QED
Creators: name: Joshi, Atharv
name: Noh, Kyungjoo
name: Gao, Yvonne Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The unique features of quantum theory offer a powerful new paradigm for information processing. Translating these mathematical abstractions into useful algorithms and applications requires quantum systems with significant complexity and sufficiently low error rates. Such quantum systems must be made from robust hardware that can coherently store, process, and extract the encoded information, as well as possess effective quantum error correction (QEC) protocols to detect and correct errors. Circuit quantum electrodynamics (cQED) provides a promising hardware platform for implementing robust quantum devices. In particular, bosonic encodings in cQED that use multi-photon states of superconducting cavities to encode information have shown success in realizing hardware-efficient QEC. Here, we review recent developments in the theory and implementation of quantum error correction with bosonic codes and report the progress made towards realizing fault-tolerant quantum information processing with cQED devices.
description: 26 pages, 5 figures
Charge radius of the short-lived $^{68}$Ni and correlation with the dipole polarizability
Creators: name: Kaufmann, S.
name: Simonis, J.
name: Bacca, S.
name: Billowes, J.
name: Bissell, M. L.
name: Blaum, K.
name: Cheal, B.
name: Ruiz, R. F. Garcia
name: Gins, W.
name: Gorges, C.
name: Hagen, G.
name: Heylen, H.
name: Kanellakopoulos, A.
name: Malbrunot-Ettenauer, S.
name: Miorelli, M.
name: Neugart, R.
name: Neyens, G.
name: Nörtershäuser, W.
name: Sánchez, R.
name: Sailer, S.
name: Schwenk, A.
name: Ratajczyk, T.
name: Rodríguez, L. V.
name: Wehner, L.
name: Wraith, C.
name: Xie, L.
name: Xu, Z. Y.
name: Yang, X. F.
name: Yordanov, D. T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present the first laser spectroscopic measurement of the neutron-rich nucleus $^{68}$Ni at the \mbox{$N=40$} subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability $α_{\rm D}$ has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- and three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus $^{48}$Ca. Three-particle--three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of $^{68}$Ni.
description: 6 pages, 3 figures
Probabilistic feasibility guarantees for solution sets to uncertain variational inequalities
Creators: name: Fabiani, Filippo
name: Margellos, Kostas
name: Goulart, Paul J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We develop a data-driven approach to the computation of a-posteriori feasibility certificates to the solution sets of variational inequalities affected by uncertainty. Specifically, we focus on instances of variational inequalities with a deterministic mapping and an uncertain feasibility set, and represent uncertainty by means of scenarios. Building upon recent advances in the scenario approach literature, we quantify the robustness properties of the entire set of solutions of a variational inequality, with feasibility set constructed using the scenario approach, against a new unseen realization of the uncertainty. Our results extend existing results that typically impose an assumption that the solution set is a singleton and require certain non-degeneracy properties, and thereby offer probabilistic feasibility guarantees to any feasible solution. We show that assessing the violation probability of an entire set of solutions, rather than of a singleton, requires enumeration of the support constraints that "shape" this set. Additionally, we propose a general procedure to enumerate the support constraints that does not require a closed form description of the solution set, which is unlikely to be available. We show that robust game theory problems can be modelling via uncertain variational inequalities, and illustrate our theoretical results through extensive numerical simulations on a case study involving an electric vehicle charging coordination problem.
Figure S3 from Prey speed influences the speed and structure of the raptorial strike of a ‘sit-and-wait’ predator
Creators: name: Rossoni, Sergio
name: Niven, Jeremy E.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Sequential images of P. aeruginosa striking a fly.
Figure S1 from Prey speed influences the speed and structure of the raptorial strike of a ‘sit-and-wait’ predator
Creators: name: Rossoni, Sergio
name: Niven, Jeremy E.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: The experimental configuration for recording the strikes of praying mantids.
Acanthanas Anker & Poddoubtchenko & Jeng 2006, new genus
Creators: name: Anker, Arthur
name: Poddoubtchenko, Denis
name: Jeng, Ming-Shiou
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Alpheidae
Acanthanas

description: Acanthanas, new genus
  Diagnosis. –  Body bulky, stout. Frontal margin with long distally acute rostrum and acute orbital teeth. Pterygostomial angle bluntly angular to rounded, protruding. Eyes mostly concealed in dorsal and lateral view, visible in frontal view; anteromesial margin of cornea and base of eyestalk with spiny projections. Antennular peduncle stout, first segment with large ventromesial tooth; lateral antennular flagellum feebly biramous. Antenna with moderately robust basicerite; carpocerite short, not overreaching scaphocerite. Mouthparts typical for family; mandible with two-segmented palp and expanded incisor process. Third maxilliped pediform, lateral plate ear-shaped, acute; tip of ultimate segment armed with strong spines. First pereiopods (= chelipeds) feebly enlarged, equal, symmetrical, carried extended; ischium unarmed; merus with subacute distal projection on dorsal margin; carpus subcylindrical, mesial face without rows of setae; chela simple; palm smooth, linea impressa and adhesive discs absent; fingers unarmed, without snapping mechanism. Second pereiopod with five-segmented carpus. Third pereiopod with ischium bearing spine on ventral margin, merus and carpus unarmed; propodus with small spines on ventral margin, dactylus biunguiculate. Fifth pereiopod with propodus bearing several rows of setae. Sixth abdominal somite with articulated plate at posteroventral angle. Second pleopod with appendix interna and appendix masculina (including some ovigerous specimens). Uropod with sympodite bearing slightly bifid tooth; diaeresis sinuous. Telson with two pairs of dorsal spines and two pairs of posterolateral spines; posterior margin feebly rounded; anal tubercles absent. Gill formula as following: 5 pleurobranchs (P1-5); 0 arthrobranch; 0 podobranch; 2 lobe-like epipods (Mxp1-2); 3 strap-like epipods (= mastigobranchs) (Mxp3, P1-2); 3 setobranchs (P1-3); 3 normally developed exopods (Mxp1-3), 1 rudimentary exopod (P1).
 Type species. – Acanthanas pusillus, new species, by monotypy and present designation.
 Etymology. – The generic name is a combination of two Greek words, acantha (spike, spine, prickle etc., referring to the two acute projections on the eyes), and Athanas (a Greek king and the most similar alpheid genus). Gender masculine.
 Remarks. – See below.
description: Published as part of Anker, Arthur, Poddoubtchenko, Denis & Jeng, Ming-Shiou, 2006, Acanthanas Pusillus, New Genus, New Speceis, A Miniature Alpheid Shrimp With Spiny Eyes From The Philippines (Crustacea: Decapoda), pp. 341-348 in Raffles Bulletin of Zoology 54 (2) on page 342, DOI: 10.5281/zenodo.4508871
Dirac Fermions on a 2D lattice in the presence of defects : with possible applications to quantum computation
Creators: name: Weeks, William Conan
Publisher: name: University of British Columbia
Year: 2011

description: Dirac Fermions on 2D lattice are studied in the presence of a single flux tube, a pair of flux tubes and an edge dislocation/anti-dislocation pair. Numerical studies have been carried out using exact diagonalization for each case, and the results indicate that the model supports fractionally charged particles with anyonic statistics. An analytical calculation is also provided, predicting a zero energy bound state in the continuum for Dirac Fermions in the presence of a single flux tube carrying one-half flux quantum, as well as a brief discussion of anyonic quasiparticles and their possible application to quantum computation.
The double radio source 3C343.1: A galaxy-QSO pair with very different redshifts
Creators: name: Arp, H.
name: Burbidge, E. M.
name: Burbidge, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The strong radio source 3C343.1 consists of a galaxy and a QSO separated by no more than about 0.25 arcsec. The chance of this being an accidental superposition is conservatively 10^-8. The z=0.344 galaxy is connected to the z=0.750 QSO by a radio bridge. The numerical relation between the two redshifts is that predicted from previous associations. This pair is an extreme example of many similar physical associations of QSOs and galaxies with very different redshifts.
description: A&A Letters in press
title: Using visual representations to improve instructional materials for distance education computing students
Creators: name: Price, Linda
Publisher: name: The Open University
Year: 2002

description: Understanding how to develop instructional materials for distance education students is a challenging problem, but it is exacerbated when a domain is complex to teach, such as computer science. Visual representations have a history of use in computing as a means to alleviate the difficulties of learning abstract concepts. However, it is not clear whether improvements observed are as a result of improvements in the visual representations used in instructional materials or due to individual differences in students. This research examines the two themes of individual differences and visual representation in order to investigate how they collectively impact on improving instructional materials for distance education students studying computer science. It investigates the impact of different representations on learning while additionally investigating the relationship between individual differences and student learning.

The research in this thesis shows that visual representations are important in designing instructional materials. In particular, texts with visual representations have the power to cue students to perceive instructional materials as easier to process and more engaging.Investigation into the impact of concrete high-imagery versus abstract low-imagery visual representations illustrated that concrete visual representations incurred fewer cognitive overheads for computer science students and were able to ameliorate the challenges of learning computing.

The research in this thesis into individual differences demonstrated that Imagers did benefit more from studying instructional materials containing text with visual components. However the research indicates that appropriate selection of individual difference tests is dependent upon the application, i.e., whether the results are to be used to assess generalised tendencies or episodes in learning and whether the tests examine underlying approaches to cognition or practices in education.

An underlying question was whether students studying instructional materials containing low-imagery visual representations would cope as well as those studying high-imagery ones. Accomplished learners demonstrated that they could perform as well as with those receiving high-imagery visual representations. However, studying and recalling these materials did incur more cognitive processing.

This thesis argues that improving instructional materials by including appropriate visual representations is a useful basis for improving learning for distance education computer science students.