cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The invertebrate biodiversity of differently aged arable farmland hedgerows under environmental stewardship
Creators: name: Bennett, Sophie
Publisher: name: University of Lincoln
Year: 2023
Subjects: C180 - Ecology

description: iiABSTRACTHedgerows have been a feature of the British countryside for many centuries and their value to wildlife particularly in farmed areas is long acknowledged. But farmland hedgerows experienced dramatic decline in the 20th century and efforts to halt this decline have been a focal point for agri-environmental activities, with hedge planting and management amongst the most popular options amongst farmers. Despite restoration of many thousands of kilometre of hedgerow under environmental stewardship, the rate of hedgerow loss exceeds the current rate of replacement.Information regarding the ‘performance’ of hedgerows as habitat for a range of wildlife is not lacking, although there is less current information regarding the biodiversity of the woody hedgerow itself as opposed to the grassy hedge bottom; I examine both elements of the hedgerow. There is less current information regarding invertebrates than for birds, plants or mammals. A lack of general monitoring has produced a deficit of knowledge of the role farmland hedgerows currently play in maintaining invertebrate biodiversity and what agri-environmental options have achieved.My objective was to compare and contrast the invertebrate faunas of hedgerows relatively newly-planted under agri-environmental schemes with existing hedgerow stock in order to investigate the biodiversity gains achieved by creation of new habitat. While it was true that overall the diversity of mature hedgerows was greater than that of new hedgerows, for some taxa newer hedges were ‘preferred’. There was evidence for the value of even relatively immature (~10 year-old) hedgerow habitats to overall invertebrate diversity.I did not use a single taxonomic group such as butterflies to ‘indicate’ diversity, but instead chose to take a view of the broad spectrum of invertebrates collected from both the hedge bottom and hedge top based on higher taxon approaches (notably order), which have been proposed as an adequate means of rapidly assessing the diversity of agricultural land.A suite of habitat variables including botanical diversity at hedge bottom and top, structural features including the height, width and density of vegetation, as well as weather data were recorded. While weather will always have the ultimate decisive influence on invertebrate activity, structural elements such as the sward height at hedge bottom and the density of the canopy are important to the invertebrate assemblage.As hedgerow conservation and management become increasingly important in the light of continuing declines, the ability to evidence the effects of interventions efficiently will be crucial. This research underscores the ongoing need for monitoring of hedgerow creation in order to verify whether biodiversity gains are achieved.
Positive quandle homology and its applications in knot theory
Creators: name: Cheng, Zhiyun
name: Gao, Hongzhu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27, 57Q45

description: Algebraic homology and cohomology theories for quandles have been studied extensively in recent years. With a given quandle 2(3)-cocycle one can define a state-sum invariant for knotted curves(surfaces). In this paper we introduce another version of quandle (co)homology theory, say positive quandle (co)homology. Some properties of positive quandle (co)homology groups are given and some applications of positive quandle cohomology in knot theory are discussed.
description: 22 pages, 13 figures
Оценка запаса валежа В СОСНОВЫХ НАСАЖДЕНИЯХ ПОДТАЁЖНО-ЛЕСОСТЕПНОГО РАЙОНА СРЕДНЕЙ СИБИРИ
Creators: name: Мишкин, Денис
Publisher: name: ООО Цифра
Year: 2023
Subjects: deadwood
reserve
evaluation
pine
Central Siberia
валеж
запас
оценка
сосна
Средняя Сибирь

description: Международный научно-исследовательский журнал, Выпуск 6 (132) 2023
title: Mise à l'épreuve d'une démarche de type lesson study en contexte préscolaire pour la conception d'un outil d'observation des jeunes enfants
title: Etude de cas menée dans une institution de la petite enfance lausannoise
titleType: Subtitle
title: Mise à l'épreuve d'une démarche de type lesson study en contexte préscolaire pour la conception d'un outil d'observation des jeunes enfants
titleType: AlternativeTitle
Creators: name: Garcia, Myriam
Publisher: name: Unknown
Year: 0
Subjects: subject: lesson study
subject: structure d’accueil préscolaire
subject: observation
subject: évaluation
subject: analyse de contenu

description: Ce travail de mémoire, réalisé en vue de l’obtention de la maîtrise en sciences et pratiques de l’éducation, porte sur la mise à l’épreuve d’une démarche de type lesson study en contexte préscolaire. Si la question a déjà fait l’objet de quelques recherches, la mise en oeuvre de la démarche dans un contexte dénué d’objectifs d’apprentissages officiels représente une opportunité originale n’ayant à notre connaissance pas été investiguée. Ce mémoire a donc poursuivi le projet de mettre à l’épreuve une démarche de type LS en contexte préscolaire lausannois. Ce contexte présente plusieurs caractéristiques intéressantes : la complexification des missions d’accueil, tendant vers une valorisation plus importante des premiers apprentissages socio-éducatifs, le maintien d’une absence d’objectifs d’apprentissages, l’exercice d’une pratique d’observation à visée évaluative. Le but de ce travail est ainsi d’évaluer l’adaptabilité de la LS dans un tel cadre, en mettant en évidence les aspects importants à prendre en compte lors d’une telle entreprise. Dans le même temps, l’objectif de la démarche était la construction d’un outil d’observation utilisable par l’équipe éducative en place. Afin de répondre à ce double objectif, ce travail propose une revue de la littérature à propos de la démarche lesson study et de diverses approches de l’évaluation des jeunes enfants ainsi que des spécificités du contexte d’implantation de la LS. La démarche lesson study a ensuite été mise à l’épreuve en contexte préscolaire dans le cadre d’une étude de cas. Les données sont constituées de l’enregistrement des séances de travail et des entretiens menés individuellement en fin de processus auprès de chaque participant à la démarche. L’analyse de contenu du déroulement de la LS a permis de dégager les éléments à prendre en compte pour rendre une adaptation de la démarche au préscolaire possible, comme par exemple dans l’intention de concevoir collectivement des outils d’observation.
Does egg incubation temperature impact the long-term behaviour and cognition of bearded dragons (Pogona vitticeps)?
Creators: name: Siviter, Harry
Publisher: name: University of Lincoln
Year: 2023
Subjects: D300 - Animal science

description: Egg incubation temperature impacts a range of phenotypes in oviparous reptiles including sex, growth, physiology, behaviour and cognition. However, the long-term behavioural consequences of egg incubation temperature have seldom been studied. This project investigated the long-term effects of egg incubation temperature on the behaviour and cognition of bearded dragons. The first experiment tested the impact of incubation temperature on the growth and foraging behaviour of bearded dragons. The second experiment tested the personality of lizards and the third the gaze following ability of lizards. The results showed that egg incubation temperature influenced the growth and foraging behaviour of bearded dragons. While the personality of the lizards was unaffected, incubation temperature did influence the development of different behavioural traits during ontogeny. The gaze following ability of bearded dragons was unaffected by incubation temperature however the results did show for the first time that a lizard species is capable of gaze following into the distance. The overall results show that incubation temperature impacted upon some of the long-term behaviour of bearded dragons and suggests that egg incubation temperature will influence the lifetime history trajectory of bearded dragons.
VLBI observations of the radio quasar J2228+0110 at z=5.95 and other field sources in multiple-phase-centre mode
Creators: name: Cao, H. -M.
name: Frey, S.
name: Gurvits, L. I.
name: Yang, J.
name: Hong, X. -Y.
name: Paragi, Z.
name: Deller, A. T.
name: Ivezić, Ž.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A patch of sky in the SDSS Stripe 82 was observed at 1.6 GHz with Very Long Baseline Interferometry (VLBI) using the European VLBI Network (EVN). The data were correlated at the EVN software correlator at JIVE (SFXC). There are fifteen known mJy/sub-mJy radio sources in the target field defined by the primary beam size of a typical 30-m class EVN radio telescope. The source of particular interest is a recently identified high-redshift radio quasar J222843.54+011032.2 (J2228+0110) at redshift z=5.95. Our aim was to investigate the milli-arcsecond (mas) scale properties of all the VLBI-detectable sources within this primary beam area with a diameter of 20 arcmin. The source J2228+0110 was detected with VLBI with a brightness temperature T_b>10^8 K, supporting the active galactic nucleus (AGN) origin of its radio emission, which is conclusive evidence that the source is a radio quasar. In addition, two other target sources were also detected, one of them with no redshift information. Their brightness temperature values (T_b >10^7 K) measured with VLBI suggest a non-thermal synchrotron radiation origin for their radio emission. The detection rate of 20% is broadly consistent with other wide-field VLBI experiments carried out recently. We also derived the accurate equatorial coordinates of the three detected sources using the phase-referencing technique. This experiment is an early attempt of a wide-field science project with SFXC, paving the way for the EVN to conduct a large-scale VLBI survey in the multiple-phase-centre mode.
description: 8 pages, 2 figures, accepted for publication in Astronomy and Astrophysics
Characterizing corallium rubrum populations of two mediterranean MPAs using underwater photogrammetry
Creators: name: Berman, Léo
name: Bianchimani, Olivier
name: Garrabou, Joaquim
name: Drap, Pierre
name: Payrot, Jérôme
name: Accornero-Picon, Alessandra
name: Clement, Anne-Laure
name: Cheminée, Adrien
Publisher: name: Zenodo
Year: 2014
Subjects: Photogrammetry
Corallium rubrum
MPA

description: In the frame of two MPA management (the recently enforced Calanques National Park and the 30 years-old Banyuls MPA) Corallium rubrum (Cnidaria) populations were studied in order to give managers useful data for population management. Data on morphology, recruitment and population size-structure were collected in both MPAs using novel photogrammetric methods allowing precise tridimensional measures. We assessed size structures and population dynamics and linked it to the protection levels of both MPAs. In Banyuls, morphometrics of populations revealed population characteristics typical of long lived individuals (mean colony height of 30 cm, basal diameter >2cm). Contrastingly Calanques National Park populations were characterized by biometrics typical of earlier developmental stage (e.g. smaller and thinner colonies).
Current dependence of spin torque switching rate based on Fokker-Planck approach
Creators: name: Taniguchi, Tomohiro
name: Imamura, Hiroshi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin torque switching rate of an in-plane magnetized system in the presence of an applied field is derived by solving the Fokker-Planck equation. It is found that three scaling currents are necessary to describe the current dependence of the switching rate in the low-current limit. The dependences of these scaling currents on the applied field strength are also studied.
description: 3 pages, 3 figures
title: Aesculus hippocastanum L. (at kestanesi) da Phytophthora
Creators: name: Werres, Sabine
name: Akilli, Seçil
name: Maden, Salih
Publisher: name: Julius Kühn-Institut, Federal Research Centre for Cultivated Plants
Year: 2013

description: JKI Data Sheets Plant Pests and Diagnosis; 2013/15
description: Avrupa’ da, Aesculus hippocastanum L. (Atkestanesi) yol kenarlarında, parklarda, caddelerde ve bahçelerde önemli bir ağaç türüdür. Bu ağaç türü daha çok geçit iklim zonunda (bkz. Avrupa dağılım haritası http://www.discoverlife.org) gelişmektedir. Atkestanesi, Orta Avrupa için yerel bir tür değildir. O, Yunanistan, Arnavutluk ve Bulgaristan’daki ormanlardan kaynaklanmaktadır ve oradan 16. Asırda Viyana yoluyla batıya doğru taşınmıştır. Atkestanesi en fazla 200 yıl kadar yaşayabilir.  Aesculus hippocastanum’ un ‘Baumannii’, ‘Globosum’ ve ‘Pyramidalis’ gibi farklı çeşitleri vardır. Aesculus hippocastanum aynı zamanda kırmızı çiçek açan A. x carnea melezinin (Kırmızı Atkestanesi) ebeveynidir. Bu melezin meşhur bir çeşidi ‘Briottii’ dir.
Breakdown of continuum elasticity in amorphous solids
Creators: name: Lerner, Edan
name: DeGiuli, Eric
name: Düring, Gustavo
name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show numerically that the response of simple amorphous solids (elastic networks and particle packings) to a local force dipole is characterized by a lengthscale $\ell_c$ that diverges as unjamming is approached as $\ell_c \sim (z - 2d)^{-1/2}$, where $z \ge 2d$ is the mean coordination, and $d$ is the spatial dimension, at odds with previous numerical claims. We also show how the magnitude of the lengthscale $\ell_c$ is amplified by the presence of internal stresses in the disordered solid. Our data suggests a divergence of $\ell_c\sim (p_c-p)^{-1/4}$ with proximity to a critical internal stress $p_c$ at which soft elastic modes become unstable.
description: 8 pages, 6 figures
Kinetically engendered sub-spinodal length scales in spontaneous dewetting of thin liquid films
Creators: name: Kotni, TirumalaRao
name: Sarkar, Jayati
name: Khanna, Rajesh
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Numerical simulations of spontaneous dewetting of non-slipping, variable viscosity unstable thin liquid films on homogeneous substrates reveal the existence of sub-spinodal lengthscales through formation of satellite holes, a marker of nucleated dewetting and/or heterogeneous substrates, in the late stages of dewetting if the liquid viscosity decreases continually with decreasing film thickness. These films also show established signatures of slipping films such as faster rupture and flatter morphologies in the early stages even without invoking any slippage.
description: 5 pages, to be submitted to PRL
X-Ray Emission from Star-Forming Galaxies - Signatures of Cosmic Rays and Magnetic Fields
Creators: name: Schober, Jennifer
name: Schleicher, Dominik R. G.
name: Klessen, Ralf S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The evolution of magnetic fields in galaxies is still an open problem in astrophysics. In nearby galaxies the far-infrared-radio correlation indicates the coupling between magnetic fields and star formation. The correlation arises from the synchrotron emission of cosmic ray electrons traveling through the interstellar magnetic fields. However, with an increase of the interstellar radiation field (ISRF), inverse Compton scattering becomes the dominant energy loss mechanism of cosmic ray electrons with a typical emission frequency in the X-ray regime. The ISRF depends on the one hand on the star formation rate and becomes stronger in starburst galaxies, and on the other hand increases with redshift due to the evolution of the cosmic microwave background. With a model for the star formation rate of galaxies, the ISRF, and the cosmic ray spectrum, we can calculate the expected X-ray luminosity resulting from the inverse Compton emission. Except for galaxies with an active galactic nucleus the main additional contribution to the X-ray luminosity comes from X-ray binaries. We estimate this contribution with an analytical model as well as with an observational relation, and compare it to the pure inverse Compton luminosity. Using data from the Chandra Deep Field Survey and far-infrared observations from ALMA we then determine upper limits for the cosmic ray energy. Assuming that the magnetic energy in a galaxy is in equipartition with the energy density of the cosmic rays, we obtain upper limits for the magnetic field strength. Our results suggest that the mean magnetic energy of young galaxies is similar to the one in local galaxies. This points toward an early generation of galactic magnetic fields, which is in agreement with current dynamo evolution models.
description: 16 pages, 12 figures
title: Le haut potentiel chez l'adulte : Parcours de vie
title: Le haut potentiel chez l'adulte : Parcours de vie
titleType: AlternativeTitle
Creators: name: Oswald, Chéryl
Publisher: name: Unknown
Year: 0
Subjects: subject: haut potentiel
subject: adulte
subject: parcours de vie
subject: identité
subject: transitions
subject: adaptation

description: « Haut potentiel intellectuel », « surdoué(e) », « quotient intellectuel supérieur à la moyenne ». Si a priori, le diagnostic du haut potentiel a de quoi laisser envieux, le quotidien des enfants HP est parfois bien loin de la facilité supposée de leur parcours scolaire. Hypersensibilité, hyperlucidité, sentiment de décalage par rapport aux autres sont autant de caractéristiques qui rendent la vie scolaire et sociale des enfants diagnostiqués HP parfois difficile. Mais, si la phase de l’enfance a été largement analysée dans la littérature, il existe encore peu d’ouvrages qui s’interrogent sur le passage à l’âge adulte des enfants à haut potentiel et ce qu’ils sont devenus. Quels sont les parcours de vie de ces enfants qui sont désormais des adultes à haut potentiel ? Sont-ils devenus les petits génies à qui l’on promettait un avenir brillant, une réussite hors norme ? Sont-ils entrés dans le moule d’une société structurée et structurante ? Ce mémoire tentera de donner quelques éléments de réponse sur les étapes et les obstacles qui jalonnent les parcours de vie des personnes HP. À travers différents témoignages, les transitions, le sentiment d’intégration, l’estime de soi, la construction identitaire, les stratégies d’adaptation seront mis en lumière afin d’initier une réflexion sur le cheminement de ces jeunes adultes à haut potentiel qui ont été diagnostiqué pendant l’enfance.
Many-body dynamics of dipolar molecules in an optical lattice
Creators: name: Hazzard, Kaden R. A.
name: Gadway, Bryce
name: Foss-Feig, Michael
name: Yan, Bo
name: Moses, Steven A.
name: Covey, Jacob P.
name: Yao, Norman Y.
name: Lukin, Mikhail D.
name: Ye, Jun
name: Jin, Deborah S.
name: Rey, Ana Maria
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding the many-body dynamics of isolated quantum systems is one of the central challenges in modern physics. To this end, the direct experimental realization of strongly correlated quantum systems allows one to gain insights into the emergence of complex phenomena. Such insights enable the development of theoretical tools that broaden our understanding. Here, we theoretically model and experimentally probe with Ramsey spectroscopy the quantum dynamics of disordered, dipolar-interacting, ultracold molecules in a partially filled optical lattice. We report the capability to control the dipolar interaction strength, and we demonstrate that the many-body dynamics extends well beyond a nearest-neighbor or mean-field picture, and cannot be quantitatively described using previously available theoretical tools. We develop a novel cluster expansion technique and demonstrate that our theoretical method accurately captures the measured dependence of the spin dynamics on molecule number and on the dipolar interaction strength. In the spirit of quantum simulation, this agreement simultaneously benchmarks the new theoretical method and verifies our microscopic understanding of the experiment. Our findings pave the way for numerous applications in quantum information science, metrology, and condensed matter physics.
Time-resolved charge fractionalization in inhomogeneous Luttinger liquids
Creators: name: Perfetto, E.
name: Stefanucci, G.
name: Kamata, H.
name: Fujisawa, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The recent observation of charge fractionalization in single Tomanga-Luttinger liquids (TLLs) [Kamata et al., Nature Nanotech., 9 177 (2014)] opens new routes for a systematic investigation of this exotic quantum phenomenon. In this Letter we perform measurements on two adjacent TLLs and put forward an accurate theoretical framework to address the experiments. The theory is based on the plasmon scattering approach and can deal with injected charge pulses of arbitrary shape in TLL regions. We accurately reproduce and interpret the time-resolved multiple fractionalization events in both single and double TLLs. The effect of inter-correlations between the two TLLs is also discussed.
description: 5 pages + Supplementary Material. To appear in Phys. Rev. B: Rapid. Comm
Beam by design: laser manipulation of electrons in modern accelerators
Creators: name: Hemsing, Erik
name: Stupakov, Gennady
name: Xiang, Dao
name: Zholents, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Accelerator-based light sources such as storage rings and free-electron lasers use relativistic electron beams to produce intense radiation over a wide spectral range for fundamental research in physics, chemistry, materials science, biology and medicine. More than a dozen such sources operate worldwide, and new sources are being built to deliver radiation that meets with the ever increasing sophistication and depth of new research. Even so, conventional accelerator techniques often cannot keep pace with new demands and, thus, new approaches continue to emerge. In this article, we review a variety of recently developed and promising techniques that rely on lasers to manipulate and rearrange the electron distribution in order to tailor the properties of the radiation. Basic theories of electron-laser interactions, techniques to create micro- and nano-structures in electron beams, and techniques to produce radiation with customizable waveforms are reviewed. We overview laser-based techniques for the generation of fully coherent x-rays, mode-locked x-ray pulse trains, light with orbital angular momentum, and attosecond or even zeptosecond long coherent pulses in free-electron lasers. Several methods to generate femtosecond pulses in storage rings are also discussed. Additionally, we describe various schemes designed to enhance the performance of light sources through precision beam preparation including beam conditioning, laser heating, emittance exchange, and various laser-based diagnostics. Together these techniques represent a new emerging concept of "beam by design" in modern accelerators, which is the primary focus of this article
description: Accepted for publication in Reviews of Modern Physics, http://journals.aps.org/rmp/accepted/96075E9fMc416d04401f2be712a99eb6098f44432
How the presence of a gas giant affects the formation of mean-motion resonances between two low-mass planets in a locally isothermal gaseous disc
Creators: name: Podlewska-Gaca, Edyta
name: Szuszkiewicz, Ewa
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this paper we investigate the possibility of a migration-induced resonance locking in systems containing three planets, namely an Earth analog, a super-Earth and a gas giant. The planets have been listed in order of increasing orbital periods. All three bodies are embedded in a locally isothermal gaseous disc and orbit around a solar mass star. We are interested in answering the following question: Will the low-mass planets form the same resonant structures with each other in the vicinity of the gas giant as in the case when the gas giant is absent? When there is no gas giant in the system, it has been already shown that if the two low-mass planets undergo a convergent differential migration, they will capture each other in a mean-motion resonance. For the choices of disc parameters and planet masses made in this paper, the formation of the 5:4 resonance in the absence of the Jupiter has been observed. In this work we add a gas giant on the most external orbit of the system in such a way that its differential migration is convergent with the low-mass planets. We show that the result of this set-up is the speeding up of the migration of the super-Earth and, after that, all three planets become locked in a triple mean-motion resonance. However, this resonance is not maintained due to the low-mass planet eccentricity excitation, a fact that leads to close encounters between planets and eventually to the ejection from the internal orbits of one or both low-mass planets.
description: 10 pages, 11 figures, to be published in MNRAS
Impact of the dark path on quantum dot single photon emitters in small cavities
Creators: name: Kamide, Kenji
name: Iwamoto, Satoshi
name: Arakawa, Yasuhiko
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Incoherent pumping in quantum dots (QDs) can create a biexciton state through two paths: via the formation of bright or dark exciton states. The latter, dark-pumping, path is shown to enhance the probability of two-photon simultaneous emission, and hence increase $g^{(2)}(0)$ by a factor $\propto 1/γ_S$, due to the slow spin relaxation rate $γ_S$ in QDs. The existence of the dark path is shown to impose a limitation on the single photon (SP) emission process, especially in nanocavities which exhibit a large exciton-cavity coupling and a Purcell enhancement for fast quantum telecommunications.
description: 12 pages, 6 figures
Polarized $χ_{c2}$-charmonium production in antiproton-nucleus interactions
Creators: name: Larionov, A. B.
name: Strikman, M.
name: Bleicher, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Starting from the Feynman diagram representation of multiple scattering we consider the polarized $χ_c$(1P)-charmonia production in antiproton-nucleus reactions close to the threshold ($p_{\rm lab}=5-7$ GeV/c). The rescattering and absorption of the incoming antiproton and outgoing charmonium on nucleons are taken into account, including the possibility of the elastic and nondiagonal (flavor-conserving) scattering $χ_{cJ} N \to χ_{cJ^\prime} N$, $J,J^\prime=0,1,2$. The elementary amplitudes of the latter processes are evaluated by expanding the physical $χ_c$-states in the Clebsch-Gordan series of the $c \bar c$ states with fixed values of internal orbital angular momentum ($L_z$) and spin projections on the $χ_c$ momentum axis. The total interaction cross sections of these $c \bar c$ states with nucleons have been calculated in previous works using the QCD factorization theorem and the nonrelativistic quarkonium model and turned out to be strongly $L_z$-dependent due to the transverse size difference. This directly leads to finite values of the $χ_c$-nucleon nondiagonal scattering amplitudes. We show that the $χ_{c0} N \to χ_{c2} N$ transitions significantly influence the $χ_{c2}$-production with helicity zero at small transverse momenta. This can serve as a signal in future experimental tests of the quark structure of $χ_c$-states by the PANDA collaboration at FAIR.
description: 40 pages, 14 figures
Self-disclosure with dogs
Creators: name: Evans-Wilday, Aislinn
Publisher: name: University of Lincoln
Year: 2023
Subjects: D300 - Animal science

description: There exists an abundance of literature on the health benefits of dog-ownership and the health benefits of self-disclosure however, there has been no research into the potential health benefits of self-disclosure to dogs. This thesis addresses that gap in the literature.Among the literature on the health benefits of dog-ownership there is often a focus on the benefits to people with clinical conditions or living in care facilities – much less investigated are the benefits to ‘normally-functioning’ owners. Chapter 1 investigates the literature on the health benefits of dog-ownership to ‘normally-functioning’ owners in the form of a systematic literature review. This review highlights the need for future research to fully define the term ‘owner’ when conducting research into the owner-dog relationship and to specify the type and style of relationship being examined, since not all owner-dog relationships are equal.Chapter 2 is a two-part study. Part 1 assesses the validity of adapting an established self-disclosure scale for use with dogs. Part 2 asks: are there any topics that dog-owners would rather confide in their dog than their human partner? The results indicate that heterosexual female dog-owners are significantly more willing to confide in their dog about feelings of Depression, Jealousy, Apathy and Calmness and are significantly more willing to confide in their partner about feelings of Anger and Fear. Male dog-owners showed no significant differences in their preferred disclosure recipient.Chapter 3 builds on the research started in Chapter 2 but is a separate study with a new sample of participants. The aim of this study was to: (1) determine the differences between dog-owners and non-dog-owners’ disclosure patterns to their partner, confidante and dog, (2) determine whether dog-owners and non-dog-owners differ in their quality of life using an established quality of life scale and (3) determine whether quality of life can be predicted by disclosure patterns. The results indicate that dogs do not play the same role as confidantes, since dog-owners and non-dog-owners do not differ significantly in their disclosure patterns to their partner and confidante however, there are topics that dog-owners are significantly more willing to talk to their dogs about versus their partners and confidantes. Quality of life scores of dog-owners were higher than non-dog-owners, although self-disclosure to dogs was not predictive of these higher scores.Chapter 4 discusses the potential benefits of self-disclosure to dogs and discusses reasons behind female dog-owners’ willingness to confide in their dogs, with evidence from qualitative interviews with female dog-owners carried out as part of this research.
SUMCASTEC_181216_NA_GDR Happybio pres_Workshop presentation_.pdf_Limoges_A. Pothier_Public_NA
Creators: name: R. Manczak
name: S. Saada
name: M. Tanori
name: A. Casciati
name: C. Dalmay
name: B. Bessette
name: G. Begaud
name: S. Battu
name: P. Blondy
name: M.O. Jauberteau
name: C. Baristiran Kaynak
name: M. Kaynak
name: Palego, C.
name: C.Merla
name: B. Tanno
name: M. Mancuso
name: G. Viola
name: L. Persano
name: F. Lalloue
name: A. Pothier
Publisher: name: Zenodo
Year: 2018

description: Presentation given by A. Pothier at GDR Happybio Workshop in La Rochelle France on November 6th 2018.
title: Phytophthora na Aesculus hippocastanum L. (jírovec maďal)
Creators: name: Werres, Sabine
name: Akilli, Seçil
name: Maden, Salih
Publisher: name: Julius Kühn-Institut, Federal Research Centre for Cultivated Plants
Year: 2013

description: JKI Data Sheets Plant Pests and Diagnosis; 2013/17
description: Aesculus hippocastanum L. (Jírovec maďal) představuje v Evropě významnou dřevinu parků, alejí a zahrad. Roste především v mírném podnebním pásmu (mapa výskytu viz http://www.discoverlife.org). Jírovec maďal nepatří mezi původní dřeviny střední Evropy. Jeho původem jsou horské lesy Řecka, Albánie a Bulharska, odkud byl introdukován do západní Evropy již v průběhu šestnáctého století. Jírovec dosahuje věku až 200 let.  Aesculus hippocastanum existuje v několika odlišných kultivarech jako jsou ‘Baumannii‘, ‘Globosum’ a ‘Pyramidalis’. Aesculus hippocastanum je rovněž rodičovským druhem červeně kvetoucího hybridu A. x carnea (Červený Jírovec maďal). Známým je kultivar tohoto hybridu ‘Briottii’.
The Luminosity Function of Galaxies as modeled by a left truncated beta distribution
Creators: name: Zaninetti, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A first new luminosity functions of galaxies can be built starting from a left truncated beta probability density function, which is characterized by four parameters. In the astrophysical conversion, the number of parameters increases by one, due to the addition of the overall density of galaxies. A second new galaxy luminosity function is built starting from a left truncated beta probability for the mass of galaxies once a simple nonlinear relationship between mass and luminosity is assumed; in this case the number of parameters is six because the overall density of galaxies and a parameter that regulates mass and luminosity are added. The two new galaxy luminosity functions with finite boundaries were tested on the Sloan Digital Sky Survey (SDSS) in five different bands; the results produce a "better fit" than the Schechter luminosity function in two of the five bands considered. A modified Schechter luminosity function with four parameters has been also analyzed.
description: 10 pages , 6 figures
Percolation in the classical blockmodel
Creators: name: Bujok, Maksymilian
name: Fronczak, Piotr
name: Fronczak, Agata
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Classical blockmodel is known as the simplest among models of networks with community structure. The model can be also seen as an extremely simply example of interconnected networks. For this reason, it is surprising that the percolation transition in the classical blockmodel has not been examined so far, although the phenomenon has been studied in a variety of much more complicated models of interconnected and multiplex networks. In this paper we derive the self-consistent equation for the size the global percolation cluster in the classical blockmodel. We also find the condition for percolation threshold which characterizes the emergence of the giant component. We show that the discussed percolation phenomenon may cause unexpected problems in a simple optimization process of the multilevel network construction. Numerical simulations confirm the correctness of our theoretical derivations.
description: 7 pages, 6 figures
A nodal solution of the scalar field equation at the second minimax level
Creators: name: Perera, Kanishka
name: Tintarev, Cyril
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary 35J61, Secondary 35P30, 35J20

description: We prove the existence of a sign-changing eigenfunction at the second minimax level of the eigenvalue problem for the scalar field equation under a slow decay condition on the potential near infinity. The proof involves constructing a set consisting of sign-changing functions that is dual to the second minimax class. We also obtain a nonradial sign-changing eigenfunction at this level when the potential is radial.
Chitosan-mediated vaccine delivery through the intestinal epithelium
Creators: name: Cole, Hannah
Publisher: name: University of Lincoln
Year: 2023
Subjects: B200 - Pharmacology, toxicology & pharmacy

description: Chitosan is one of the most widely studied materials in the field of drug delivery. Chitosan nanoparticles produced by ionic gelation can encapsulate macromolecular drug cargo. This work explores the potential of a specific chitosan molecule, ultrapure chitosan chloride, for oral vaccine delivery in vitro using polarised Caco-2 epithelial cells and in vivo using Balb/C mice. The chosen antigen used in the chitosan nanoparticles was ovalbumin (OVA). Work revealed an optimum concentration of 1 mg/ml of chitosan and OVA (i.e. 1:1 mass ratio), with addition of tripolyphosphate (TPP), for production of nanoparticles with a size of 196.5 nm. The chitosan:OVA nanoparticles showed a zeta potential of +9.68 mv. SDS gel studies showed that OVA stability was not compromised following interaction with chitosan. Nanoparticle exposure to hydrochloric acid (HCl) and trypsin resulted in breakdown of OVA with HCl, while some protection was apparent with trypsin. Chitosan:OVA nanoparticles at 1 mg/ml displayed a good toxicity profile, measured through 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H- tetrazolium (MTS) and lactate dehydrogenase (LDH) assays. Transepithelial electrical resistance (TEER) data also support these findings, with TEER reversibility following application apparent. Application of chitosan:OVA nanoparticles to Caco-2 cell monolayers showed a reversible decrease in TEER, but a similar effect was seen with OVA solution and therefore a nanoparticle-specific effect could not be established in terms of tight junction opening. Chitosan:OVA nanoparticles however significantly and notably enhanced fluorescein isothiocyanate ovalbumin (FITC-OVA) permeability across Caco-2 monolayers when applied at 0.1 mg/ml (1:1 chitosan:OVA mass ratio).Studies which used Balb/c mice whereby chitosan:OVA nanoparticles were administered orally, did not show a convincing immune response. Specifically, IgG1, IgG2a and IgA showed no response, while total IgG showed a small response with and without cholera toxin. This work therefore shows that a specific chitosan molecule is able to complex with OVA as a model antigen, producing sub 200 nm nanoparticles with a positive zeta potential. These systems showed clear effects in vitro, enhancing OVA permeability significantly, but in vivo response was not clear. This study illustrates that macromolecular absorption enhancement seen in vitro in intestinal models does not reliably predict in vivo immune response of vaccine delivery systems.
title: Phytophthora em Aesculus hippocastanum L. (castanheiro da índia)
Creators: name: Werres, Sabine
name: Akilli, Seçil
name: Maden, Salih
Publisher: name: Julius Kühn-Institut, Federal Research Centre for Cultivated Plants
Year: 2013

description: JKI Data Sheets Plant Pests and Diagnosis; 2013/13
description: Na Europa Aesculus hippocastanum L. (castanheiro-da-índia) é uma espécie arbórea muito utilizada na beira das estradas, nos parques, nos becos e nos jardins. Esta árvore cresce predominantemente em zonas de clima temperado (mapa da distribuição de A. hippocastanum ver http://www.discoverlife.org). O castanheiro-da-índia não é uma espécie nativa da Europa Central. É originária das florestas montanhosas da Grécia, Albânia e Bulgária a partir de onde foi introduzida na zona ocidental durante o séc.XVI. O castanheiro-da-índia pode atingir a idade de 200 anos. Existem diferentes cultivares de Aesculus hippocastanum: Baumannii,‘Globosum’ e ‘Pyramidalis’. Aesculus hippocastanum* é um parente do híbrido de flor vermelha A. x carnea* (castanheiro vermelho da índia), sendo “Briottii” uma das suas cultivares mais famosas. *Cultivadas em parques e áreas urbanas em Portugal.
Representations and $T$*-extensions of hom-Jordan-Lie algebras
Creators: name: Zhao, Jun
name: Chen, Liangyun
name: Ma, Lili
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The purpose of this paper is to study representations and $T$*-extensions of hom-Jordan-Lie algebras. In particular, adjoint representations, trivial representations, deformations and many properties of $T$*-extensions of hom-Jordan-Lie algebras are studied in detail. Derivations and central extensions of hom-Jordan-Lie algebras are also discussed as an application.
description: 26pages. arXiv admin note: substantial text overlap with arXiv:1005.0140 by other authors
СПОСОБЫ ЛОКАЛИЗАЦИИ МОБИЛЬНЫХ ПРИЛОЖЕНИЙ ДЛЯ ОПЕРАЦИОННОЙ СИСТЕМЫ ANDROID НА ЯЗЫКЕ ПРОГРАММИРОВАНИЯ KOTLIN, НА ПРИМЕРЕ QIZ-APPLICATION
Creators: name: Ильичев, Владимир
Publisher: name: ООО Цифра
Year: 2023
Subjects: Android
Android studio
Kotlin
XML
localization
Qiz-application
локализация

description: Международный научно-исследовательский журнал, Выпуск 6 (132) 2023
Effect of interaction with neutrons in matter on flavor conversion of super-light sterile neutrino with active neutrino
Creators: name: Liao, Wei
name: Luo, Yuchen
name: Wu, Xiao-Hong
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A super-light sterile neutrino was proposed to explain the absence of the expected upturn of the survival probability of low energy solar boron neutrinos. This is because this super-light sterile neutrino can oscillate efficiently with electron neutrino through a MSW resonance happened in Sun. One may naturally expect that a similar resonance should happen for neutrinos propagating in Earth matter. We study the flavor conversion of this super-light sterile neutrino with active neutrinos in Earth matter. We find that the scenario of the super-light sterile neutrino can easily pass through possible constraints from experiments which can test the Earth matter effect in oscillation of neutrinos. Interestinlgy, we find that this is because the naively expected resonant conversion disappears or is significantly suppressed due to the presence of a potential $V_n$ which arises from neutral current interaction of neutrino with neutrons in matter. In contrast, the neutron number density in the Sun is negligible and the effect of $V_n$ is effectively switched off. This enables the MSW resonance in Sun needed in oscillation of the super-light sterile neutrino with solar electron neutrinos. It's interesting to note that it is the different situation in the Sun and in the Earth that makes $V_n$ effectively turned off and turned on respectively. This observation makes the scenario of the super-light sterile neutrino quite interesting.
description: 22 pages, 10 figures
Geometric Correction for Diffusive Expansion of Steady Neutron Transport Equation
Creators: name: Wu, Lei
name: Guo, Yan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We revisit the diffusive limit of a steady neutron transport equation in a $2$-D unit disk with one-speed velocity. We show the classical result in [4] with Milne expansion is incorrect in $L^{\infty}$ and we give the right answer in studying the $ε$-Milne expansion with geometric correction.
description: 62 pages
The effect of accretion on the measurement of neutron star mass and radius in the low-mass X-ray binary 4U 1608-52
Creators: name: Poutanen, Juri
name: Nättilä, Joonas
name: Kajava, Jari J. E.
name: Latvala, Outi-Marja
name: Galloway, Duncan
name: Kuulkers, Erik
name: Suleimanov, Valery
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spectral measurements of thermonuclear (type-I) X-ray bursts from low mass X-ray binaries have been used to measure neutron star (NS) masses and radii. A number of systematic issues affect such measurements and have raised concerns as to the robustness of the methods. We present analysis of the X-ray emission from bursts observed from 4U 1608-52 at various persistent fluxes. We find a strong dependence of the burst properties on the flux and spectral hardness of the persistent emission before burst. Bursts occurring during the low-accretion rate (hard) state exhibit evolution of the black body normalisation consistent with the theoretical predictions of NS atmosphere models. However, bursts occurring during the high-accretion rate (soft) state show roughly constant normalisation, which is inconsistent with the NS atmosphere models and therefore these bursts cannot be easily used to determine NS parameters. We analyse the hard-state burst to put the lower limit on the neutron star radius in 4U 1608-52 of 13 km (for masses 1.2-2.4 M$_\odot$). The best agreement with the theoretical NS mass-radius relations is achieved for source distances in the range 3.1-3.7 kpc. We expect that the radius limit will be 10 per cent lower if spectral models including rapid rotation are used instead.
description: 14 pages, 9 figures, submitted to MNRAS
A Critical Assessment of the European Cultural Approach to Counter Terrorism
Creators: name: Marsili, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: subject: Terrorism
subject: European Union (EU)
subject: Security
subject: Defense (Defence)
subject: Lone Wolf
subject: Foreign Fighters
subject: Terrorist
subject: Jihad
subject: Urban sociology
subject: Fundamentalism
subject: Radicalisation (Radicalization)
subject: Religion
subject: http://cei.iscte-iul.pt/europeglobalactor/a-new-cultural-approach-to-counter-terrorism-rethinking-the-european-counterterrorism-strategy

description: Presentation of the paper "A Critical Assessment of the European Cultural Approach to Counter Terrorism" at the international conference "Europe as a Global Actor" hosted by the Center for International Studies (CEI-IUL) at ISCTE–IUL (Lisbon University Institute), in Lisbon, on 24 May 2016 (Panel 13 on Terrorism & Security, 18h00–20h00, Room C1.03, Building II)
title: Analyser l'activité des élèves pour évaluer l'acquisition de compétences collaboratives
title: Proposition d'un dispositif aidant les élèves dans la réalisation d'un exposé en géographie
titleType: Subtitle
title: Analyser l'activité des élèves pour évaluer l'acquisition de compétences collaboratives
titleType: AlternativeTitle
Creators: name: Roxo, Victor
Publisher: name: Unknown
Year: 0
Subjects: subject: Cours d’action
subject: Dispositif hybride
subject: Interdépendance
subject: Géographie
subject: Pédagogie coopérative
subject: Pédagogie de projet

description: La réalisation d’exposés dans le cadre scolaire est une pratique courante et très appréciée, tant par les enseignants que par les élèves. Issue de la pédagogie du projet, elle est censée favoriser l’acquisition d’habiletés coopératives, développer la responsabilisation et l’autonomie et préparer les élèves à un monde professionnel demandant de faire appel à toutes ces compétences. Qu’en est-il de la didactique en lien avec cette discipline ? En d’autres termes, apprend-t-on à nos élèves à travailler par projet en équipe ? Quels sont les moyens didactiques à disposition des enseignants souhaitant entrer dans ce domaine ? La recherche présentée dans le cadre de ce travail propose un dispositif hybride, original et totalement transposable qui a pour but de permettre à des élèves de collaborer dans le cadre de la réalisation d’un projet de groupe en développant des habiletés coopératives. Dans un contexte de réalisation d’exposé de géographie par groupes de deux dans une classe de 8P, le dispositif proposé est implémenté et l’activité des élèves issue de cette démarche est analysée. Le fruit de l’analyse des résultats observés a permis de questionner le dispositif, de le critiquer, d’en déceler les points forts comme les points faibles, offrant ainsi des perspectives de modifications dudit dispositif qui permettent de le rendre plus ergonomique et donc mieux adapté aux élèves et au contexte dans lequel il s’inscrit.