28 research outputs found
Traduire des aspects créoles dans Balai de sorcière de Lawrence Scott
No full textThis two hour workshop brought together author Lawrence Scott, the Martinican born actress Mylène Wagram, Bastien Bomans, PhD student at the University of Liège, Éric Maîtrejean and Elizabeth Walcott, professors at UWI, Trinidad, as well as some fourteen eager participants. It was a lively opportunity to exchange on difficult choices and ever necessary revisions
Le slam : du projet didactique à l’expérience humaine
No full textL’expérience pédagogique et didactique rapportée dans cet article découle de circonstances où l’auteure est devenue l’initiatrice d’un projet sur le slam dans son école. Celui-ci tenait compte des caractéristiques particulières du milieu francophone québécois dans lequel elle enseigne depuis quatorze ans.À travers le récit réflexif et introspectif d’une expérience professionnelle marquante, l’auteure nous relate sa prise de conscience langagière et identitaire, et la façon dont celle-ci lui aura permis, au moyen du slam, de renouer avec l’Autre dans son identité et dans sa langue.Porteur d’apprentissages transformateurs, le slam permettrait, par les échanges qu’il produit, la coconstruction d’une nouvelle identité collective francophone plus inclusive et plus à même de répondre aux besoins de la société métissée de demain.The pedagogical and didactic experiment described in this article emerged from a slam project the author initiated at her school. It took into account the specific characteristics of the Quebec Francophone environment where she has been teaching for fourteen years.Through the reflective and introspective description of a remarkable professional experience, the author tells us about the expansion of her language and identity awareness, and how this enabled her to reconnect with the identity and language of the Other through slam.Because of the discussions it produces, slam is a vehicle for transformative learning and could contribute to the co-construction of a new collective Francophone identity which is more inclusive and better able to meet the needs of the multi-cultural society of tomorrow.La experiencia pedagógica y didáctica descrita en este articulo proviene de circunstancias en donde la autora se convirtió en la iniciadora de un proyecto sobre el slam en una escuela. Dicho proyecto tomó en consideración las características particulares del medio francófono quebequense en el cual la autora enseña desde hace catorce años.A través de la narración reflexiva y introspectiva de una experiencia profesional significativa, la autora relata su toma de consciencia lingüística e identitaria, y la manera en que esta le permitiría, a través del slam, re-conectarse con el Otro de su identidad y de su lengua.Portador de aprendizajes transformadores, el slam permitiría, gracias a los intercambios que produce, la co-construcción de una nueva identidad colectiva francófona más inclusiva y dar una respuesta a las necesidades de la sociedad mestizada del mañana
Shell galaxies
No full textTitle: Shell galaxies Author: Ivana Ebrová Department / Institute: Astronomical Institute of the Academy of Sciences of the Czech Republic Supervisor of the doctoral thesis: RNDr. Bruno Jungwiert, Ph.D., Astronomical Institute of the Academy of Sciences of the Czech Republic Abstract: Stellar shells observed in many giant elliptical and lenticular as well as a few spiral and dwarf galaxies presumably result from radial minor mergers of galaxies. We show that the line-of- sight velocity distribution of the shells has a quadruple-peaked shape. We found simple analytical expressions that connect the positions of the four peaks of the line profile with the mass distribution of the galaxy, namely, the circular velocity at the given shell radius and the propagation velocity of the shell. The analytical expressions were applied to a test-particle simulation of a radial minor merger, and the potential of the simulated host galaxy was successfully recovered. Shell kinematics can thus become an independent tool to determine the content and distribution of dark matter in shell galaxies up to ~100 kpc from the center of the host galaxy. Moreover we investigate the dynamical friction and gradual disruption of the cannibalized galaxy during the shell formation in the framework of a simulation with test particles. The..
Galaxie se slupkami
No full textNázev práce: Galaxie se slupkami Autor: Ivana Ebrová Katedra / Ústav: Astronomický ústav AV ČR, v.v.i. Vedoucí doktorské práce: RNDr. Bruno Jungwiert, Ph.D., Astronomický ústav AV ČR, v.v.i. Abstrakt: Slupky hvězdné povahy pozorované v mnoha eliptických a čočkových galaxiích, jakožto i v několika spirálních a trpasličích galaxiích jsou pravděpodobně pozůstatkem radiální galaktické srážky velké a malé galaxie. Ukazujeme, že distribuce rychlostí hvězd slupky ve směru zorného paprsku vykazuje čtyři jasná maxima. Našli jsme jednoduchý analytický předpis spojující polohy těchto maxim s tvarem potenciálu galaxie, jmenovitě s kruhovou rychlostí na poloměru slupky a rychlostí šíření slupky. Tento předpis s úspěchem aplikujeme na výsledky simulace radiální srážky galaxií s testovacími částicemi. Kinematika slupek se tedy může stát novým nezávislým nástrojem pro určení obsahu temné hmoty ve slupkových galaxiích až do vzdálenosti okolo 100 kpc od centra galaxie. Navíc zkoumáme dynamické tření a postupný rozpad kanibalizované galaxie během srážky produkující slupky v simulacích s testovacími částicemi. Kombinace těchto dvou efektů může značně přerozdělit polohy a jasnosti vzniklých slupek. Zanedbání těchto efektů může vést k závažným chybách při pokusu o datování srážky v pozorovaných slupkových galaxiích. Klíčová...Title: Shell galaxies Author: Ivana Ebrová Department / Institute: Astronomical Institute of the Academy of Sciences of the Czech Republic Supervisor of the doctoral thesis: RNDr. Bruno Jungwiert, Ph.D., Astronomical Institute of the Academy of Sciences of the Czech Republic Abstract: Stellar shells observed in many giant elliptical and lenticular as well as a few spiral and dwarf galaxies presumably result from radial minor mergers of galaxies. We show that the line-of- sight velocity distribution of the shells has a quadruple-peaked shape. We found simple analytical expressions that connect the positions of the four peaks of the line profile with the mass distribution of the galaxy, namely, the circular velocity at the given shell radius and the propagation velocity of the shell. The analytical expressions were applied to a test-particle simulation of a radial minor merger, and the potential of the simulated host galaxy was successfully recovered. Shell kinematics can thus become an independent tool to determine the content and distribution of dark matter in shell galaxies up to ~100 kpc from the center of the host galaxy. Moreover we investigate the dynamical friction and gradual disruption of the cannibalized galaxy during the shell formation in the framework of a simulation with test particles. The...Matematicko-fyzikální fakultaFaculty of Mathematics and Physic
’n Ekologiese perspektief op ’n Nederlandse sprokie vir letterkunde-onderrig in Afrikaans
No full textThe article focuses on a fairy tale by Godfried Bomans, “De rijke bramenplukker”, and the aim is to show how elements from fairy tales can address current environmental values in society. The writer discusses relevant intertexts and the context of the author, as well as the use of fairy tales as literary texts for the moral education of adolescents. The main argument is that literature can add to the sensitising of cultural (environmental) and aesthetic values in social contexts and therefore these types of fairy tales can form part of the secondary school curriculum, especially with the emphasis on the approach in the new outcomes-based education on the development of values and responsible citizenship. The hidden environmental perspective in the fairy tale is explored as a possibility for the experience of values in the teaching of Afrikaans literature. This text is useful in the Senior Phase (Grades 7-9) where fairy tales, as well as Dutch literary texts, may be prescribed for learners of Afrikaans.
Opsomming
In hierdie artikel word op ’n sprokie van Godfried Bomans, “De rijke bramenplukker”, gefokus, om aan te toon hoe daar deur middel van sprokie-elemente aan hedendaagse omgewingswaardes van die samelewing aandag gegee kan word. Die intertekste wat met dié sprokie verband hou, sowel as die konteks van die skrywer en die gebruik van sprokies as literêre tekste vir die morele opvoeding van die adolessent word bespreek. Omdat letterkunde kan bydra tot die sensitisering van kulturele en estetiese waardes in sosiale kontekste, behoort sodanige tipe sprokies plek te hê in die sekondêre skoolkurrikulum, veral waar daar in die nuwe uitkomsgebaseerde onderwysbenadering klem gelê word op die ontwikkeling van waardes en verantwoordelike burgerskap. Die verskuilde ekologiese perspektief in genoemde sprokie word ontgin as moontlikheid vir belewenis van omgewingswaardes in die Afrikaans letterkunde-onderrigsituasie. Die teks is veral bruikbaar in die senior fase (grade 7-9) waar Nederlandse werke en sprokies vir leerders van Afrikaans voorgeskryf kan word
Accelerated Growth Plate Mineralization and Foreshortened Proximal Limb Bones in Fetuin-A Knockout Mice
No full textPMCID: PMC3473050This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Attitudes of adolescent cancer survivors toward end-of-life decisions for minors
No full textOBJECTIVES: The present study aimed to investigate the attitudes of adolescent cancer survivors toward end-of-life decisions with lifeshortening effects, including nontreatment decisions (NTDs), intensified alleviation of pain and symptoms (APS), and euthanasia, and the influence of illness experience on these attitudes.
METHODS: Adolescent cancer survivors were interviewed with a structured questionnaire using hypothetical case descriptions. The results were compared with a study of 1769 adolescents without experience of chronic illness.
RESULTS: Eighty-three adolescents, 11 to 18 years of age, were interviewed. In terminal situations, 70% to 90% found requests for NTDs acceptable, 84% requests for APS, and 57% to 64% requests for euthanasia. Requests for end-of-life decisions were less acceptable in nonterminal situations, where 28% found requests for NTDs acceptable, 39% to 47% requests for APS, and 11% to 21% requests for euthanasia. Frequently cited reasons for holding back physicians from administering a lethal drug to a child were the child not being well informed about his or her condition (92%) and the parents’ opinion not being asked (92%). Compared with adolescents without experience with chronic
illness, cancer survivors were more accepting toward requests for NTDs and APS in terminal situations.
CONCLUSIONS: Adolescent cancer survivors, like other adolescents, want to be involved in medical decision-making at the end of life. They value autonomous decision-making, without excluding parents from the process. The experience of living through a life-threatening illness can alter adolescents’ attitudes toward requests for NTDs and APS
Nigidius MacLeay 1819
No full textobesus species group Identification of species within the obesus group has been complicated by erroneous species hypotheses and synonymies. Members of this species group can be readily separated from other Southeast Asian Nigidius species by the presence of large, sub-oval lobes of the ocular canthus adjacent to the eyes (Fig. 1). This is in contrast to other Southeast Asian groups that can be generalized as follows: b) the cornutus group, including N. cornutus MacLeay, N. sabahensis Okuda, and N. oblongus Van Roon with a shelf-like canthus that is truncate anteriorly; c) the distinctus group, including N. distinctus Parry and N. lewisi Boileau with a deeply emarginate canthus; and d) the laevicollis group, including numerous species such as N. laevicollis Westwood, N. elongatus Boileau, and N. formosanus Bates with a posteriorly expanding triangular canthus. In some species (such as N. kinabaluenis Ritsema, N. lichtensteinii Ritsema) the canthus is weakly emarginate at the anterior third. Within the obesus species group, species can be distinguished by the shape of the flagellum of the male genitalia, pronotal punctation, and the form of the anterolateral projection of the pronotum. Although useful for species diagnosis, the latter character is informative only for larger specimens because in all species the smaller individuals have a less well-developed projection. The form of the mandibles is conserved in these species, and partially sexually dimorphic. Large males can be sexed easily due to the broad lobe-like tooth near the base of the mandible. In females and small males, the tooth is much narrower and sub-acute. The first species of the group was described from “ Penang, Malacca ” [West Malaysia], by Parry (1864) as N. obesus (Fig. 2), and the species was subsequently illustrated by Westwood (1874). Since that time, most specimens from Malaysia and Indonesia in this group were identified as N. obesus (Gestro 1881, Benesh 1960, Bomans 1991, Mizunuma and Nagai 1994). Bomans and Benoit (2007) gave an exceptionally wide distribution for N. obesus, encompassing the range of all species in the group, as well as Java and Sumba from which I have not seen specimens. Fujita (2010) limited N. obesus to specimens from Malaysia and Sumatra and treated the Borneo specimens as an undescribed species. However, specimens from Sumatra and Borneo possess distinct male genitalia from those of N. obesus, and specimens from these areas can themselves be separated into two distinct species. The true N. obesus is thus far known only from peninsular Malaysia and shares the same gross morphology of the male genitalia as the other mainland Asian species in the group, N. dawnae Gravely (Fig. 3–4). Specimens from Borneo and Sumatra share similarities in the overall male genitalic form but comprise two distinct species based on obvious differences in the pronotal punctation and the form of the anterolateral margin of the pronotum. In the Sumatran species, the punctation of the pronotum is more uniformly distributed and coarser. The pronota of the Borneo species (and both mainland Asian species) show clear subfoveate areas of coarse punctures juxtaposed with almost impunctate areas with only fine, shallow punctures, and the anterolateral marginal area is more strongly produced as well. While initially considering both species to be undescribed, I researched existing names that might pertain to these two Indonesian species. The Borneo species in the obesus group has not been previously named and it is described and illustrated (Fig. 5) below. The original description of N. helleri Boileau (Fig. 6) from Sumatra mentioned its similarity to N. obesus and, critically, the presence of a very prominent lobe on the head that is rounded anteriorly, truncate posteriorly, and perpendicular to the body (Boileau 1905). This describes the lobed canthus of the obesus group perfectly. I requested an image of the holotype of N. helleri from the MNHN (Fig. 7), which confirmed that it is the Sumatran species of the obesus group. This is surprising because the name N. helleri has been traditionally used for a Javan or Sumatran species of the cornutus species group that is present in most collections (Mizunuma and Nagai 1994; Okuda 2002; Fujita 2010). The second mainland species of this group is from Myanmar, northern Thailand, and Laos and was first described as N. dawnae Gravely (1915). Subsequently it has been identified incorrectly as N. larssoni de Lisle (de Lisle 1974; Fujita 2010) or N. obesus (Mizunuma 2000). Bomans (1993) synonymized N. larssoni de Lisle with N. obesus. Araya (2003) included images of the type material for all three of these available names. Fujita (2010) recalled N. larssoni from synonymy without mention of N. dawnae. Examination of the holotype from ZMUC confirmed that N. larssoni is a synonym of N. dawnae. Compared to N. obesus, the anterolateral pronotal projection is broader and more strongly produced in this species. When compared with similarly sized specimens, N. dawnae has the largest, broadest mandibles of any species in the obesus group.Published as part of Paulsen, M. J., 2018, Revision of the obesus species group of the stag beetle genus Nigidius MacLeay (Coleoptera: Lucanidae: Lucaninae: Figulini), pp. 1-13 in Insecta Mundi 2018 (624) on pages 2-5, DOI: 10.5281/zenodo.369946
Multiscale characterization of pathological bone tissue
No full textBone is a complex natural material with a complex hierarchical multiscale organization, crucial to perform its functions. Ultrastructural analysis of bone is crucial for our understanding of cell to cell communication, the healthy or pathological composition of bone tissue, and its three-dimensional (3D) organization. A variety of techniques has been used to analyze bone tissue. This article describes a combined approach of optical, scanning electron, and transmission electron microscopy for the ultrastructural analysis of bone from the nanoscale to the macroscale, as illustrated by two pathological bone tissues. By following a top-down approach to investigate the multiscale organization of pathological bones, quantitative estimates were made in terms of calcium content, nearest neighbor distances of osteocytes, canaliculi diameter, ordering, and D-spacing of the collagen fibrils, and the orientation of intrafibrillar minerals which enable us to observe the fine structural details. We identify and discuss a series of two-dimensional (2D) and 3D imaging techniques that can be used to characterize bone tissue. By doing so we demonstrate that, while 2D imaging techniques provide comparable information from pathological bone tissues, significantly different structural details are observed upon analyzing the pathological bone tissues in 3D. Finally, particular attention is paid to sample preparation for and quantitative processing of data from electron microscopic analysis.Biomaterials & Tissue Biomechanic
Structure, dynamical impact and origin of magnetic fields in nearby galaxies in the SKA era
No full text\ua9 Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. Magnetic fields are an important ingredient of the interstellar medium (ISM). Besides their importance for star formation, they govern the transport of cosmic rays, relevant to the launch and regulation of galactic outflows and winds, which in turn are pivotal in shaping the structure of halo magnetic fields. Mapping the small-scale structure of interstellar magnetic fields in many nearby galaxies is crucial to understand the interaction between gas and magnetic fields, in particular how gas flows are affected. Elucidation of the magnetic role in, e.g., triggering star formation, forming and stabilising spiral arms, driving outflows, gas heating by reconnection and magnetising the intergalactic medium has the potential to revolutionise our physical picture of the ISM and galaxy evolution in general. Radio polarisation observations in the very nearest galaxies at high frequencies (≤3 GHz) and with high spatial resolution (≤5″) hold the key here. The galaxy survey with SKA1 that we propose will also be a major step to understand the galactic dynamo, which is important for models of galaxy evolution and for astrophysical magnetohydrodynamics in general. Field amplification by turbulent gas motions, which is crucial for efficient dynamo action, has been investigated so far only in simulations, while compelling evidence of turbulent fields from observations is still lacking
