173,962 research outputs found
Galen on the properties of foodstuffs
No full textUntil recently an English translation of Galen's On the Properties of Foodstuffs did not exist. This work, by one of the greatest of ancient physicians, provides a lucid description of the ways in which foods were thought to affect the body and were in turn affected by it. It contains revealing fragments of social comment. A retired physician with a particular interest in gastroenterology, Owen Powell offers the most accurate translation of the work currently available, including the first detailed introduction, commentary and discussion of terminology
Scattered data fitting on surfaces using projected Powell-Sabin splines
No full textWe present C1 methods for either interpolating data or for fitting scattered data associated with a smooth function on a two-dimensional smooth manifold Ω embedded into R3. The methods are based on a local bivariate Powell-Sabin interpolation scheme, and make use of local projections on the tangent planes. The data fitting method is a two-stage method. We illustrate the performance of the algorithms with some numerical examples, which, in particular, confirm the O(h3) order of convergence as the data becomes dens
The Powell-Cotton Dioramas and the Re-interpretation of an Idyll
No full textThis research examines the natural habitat dioramas created by Major P.H.G. Powell-Cotton, in doing so
it affects a remembering of a sense of place where a diorama reflects in Mieke Bal's view a three-dimensionality
that draws on architectural space; it then considers the three dimensional representation of
the landscape within the diorama itself; the two-dimensional illusion of a trompe l'oeil landscape
painting; and the exterior space occupied by the viewer. The Powell-Cotton natural habitat dioramas exist
behind large glass screens their purpose follows an aesthetic relationship with the emergence of the
natural habitat diorama and the ability to transfix perception through the re-interpretation of an idyll. The
potential for this practice-based research was to explore the possibility of developing an aesthetic for
sculpture and architectural space. However in focussing on the Powell-Cotton dioramas the notion of
aesthetic attitude would lose ground due to their idiosyncratic, artificial, and extraordinary nature, it then
prepared the basis of interpretation in establishing 'theatres of landscape' as an open concept. With
landscape, a sense of place anticipates various positions and numerous delays; it recollects the cognitive
knowledge brought to the prospect that involves aspects in, of and about landscape. Regarding the
studio-based project, the diorama was placed between the real and the unreal, challenging Bal's rationale
of the cognitive relationship of a diorama to the concept of a discursive space. Where both artist and
viewer 'activates' this space with their presence, they bring their own recollection of landscape and by
assigning landscape with memory the potentiality is where cognition becomes accentuated. Whereas the
unknown and uncharted can refute reality, memory is dependent on what is known both formally and
informally, it places the natural habitat diorama in a visual system that is both constructive and
destructive. Therefore the research methodology examines the historical context of the diorama through a
doctoral thesis by Karen Wonders and an analysis of Louis Daguerre's diorama by Richard Altick.
Following Bal's analysis of the diorama, this created a dilemma - in what ways are the perceptions of the
observer determined, and how are they undermined? Jonathan Crary and Giuliana Bruno considered the
diorama's position in relation to film and film archaeology, which ultimately the diorama and natural
habitat diorama could not compete with. In asking what has Powell-Cotton's museum to offer in the 21st
century, this thesis examines the concept of a diorama, its objectives and correspondingly its failings. As
the dioramas in the Powell-Cotton Museum were undocumented, these dioramas and their written, visual
and architectural relationship to Louis Daguerre offer a contribution to knowledge concurrent with the
relationship of this practice based research project. Whereupon the research diary forms the basis of a
contribution to new knowledge in the construction of small and large-scale dioramas, sculpture and
installations. By challenging Bal's analysis this research practice would investigate natural and projected
light and the visual language of transparency, translucency and opacity in the representation of landscape
and landscape as motif, and progressing to the structural implications of 2D and 3D work
La felicità negli scritti di Baden-Powell. Una rilettura di Baden-Powell
No full textIl tema della felicità analizzato negli scritti di Baden-Powell: significato e obiettivi educativi
Sélection de musiques de films : United artists recording / Hollywood Studio symphony orchestra ; Mitch Powell, O. B. Masingill, dir.
No full textComprend : Marching Matilda / Mitch Powell, dir. ; The from the wonderfulcountry / Mitch Powell, dir. ; The from Solomon and Sheba / O. B. Masingill, dir. ; Waltzing Matilda / O. B. Masingill, dir.BnF-Partenariats, Collection sonore - BelieveContient une table des matière
Lake Powell Research Project interim report, Kaiparowits handbook, coal resources
No full textScan of an interim report on the coal resources of the Kaiparowits Plateau in Kane County, Utah. Original 112-page book was published in May of 1975"This Lake Powell Research Project interim report is a preliminary version of a chapter in the Kaiparowits Handbook, a looseleaf data book about the natural and human resources of the Kaiparowits region
Construção colaborativa do conhecimento tecnológico, pedagógico e do conteúdo de professores de matemática
No full textResumo
As novas tecnologias de informação e comunicação desafiam os educadores em Educação Matemática a responder às mudanças que as mesmas estimulam em nossa sociedade. Assim, baseado em dois desafios instigados pelas novas tecnologias digitais, apresentamos12 uma proposta com o objetivo de avançar na construção colaborativa do conhecimento tecnológico, pedagógico e do conteúdo de professores de Matemática. Nossa proposta é fruto de um projeto colaborativo - eMat - entre pesquisadores de duas universidades que reúne professores de Matemática que desejam evoluir nas suas práticas, aprendendo matemática colaborativa e discursivamente com tecnologias digitais. Usamos um quadro conceitual e teórico que inclui ideias sobre o complexo de corpos de conhecimentos tecnológico, pedagógico e do conteúdo (CTPC), proposto por Mishra e Koehler (2006). Este se constitui quando um professor usa apropriadamente as tecnologias digitais para fornecer oportunidades aos seus alunos para interagirem colaborativamente para fazer Matemática (GATTEGNO, 1987). Apresentamos dados de dois momentos de um curso online que pode contribuir para o desenvolvimento profissional, ilustrando como pequenas equipes de professores constroem seu CTPC em um ambiente virtual de aprendizagem - Virtual Math Teams with GeoGebra. Assim, por meio do nosso projeto, eMat, estamos dando suporte para professores que estão dispostos a usarem novas tecnologias digitais, as quais podem ser úteis para que os seus alunos manipulem objetos matemáticos e percebam relações entre os objetos e relações de relações.
Abstract
The new information and communications technologies challenge educators of mathematics education to meet the changes that it stimulates in our society. On the basis of two challenges instigated by new digital technologies, we present a response addressing the objective to evolve the collaborative construction of mathematics teachers’ technological pedagogical and content knowledge. Our response is a collaborative project—eMath—among researchers from two universities to engage mathematics teachers to develop practices that allow them to learn mathematics collaboratively and discursively with digital technologies. Using a conceptual and theoretical framework that includes ideas on the complex bodies of technological, pedagogical and content knowledge (Mishra and Koehler, 2006) involved when a teacher appropriately uses digital technologies to provide opportunities for students to interact collaboratively and discursively to do the mathematics (GATTEGNO, 1987). We present data from two different moments in an online professional development course to illustrate how small teams of teachers construct their CTPC in a virtual learning environment—Virtual Math Teams with GeoGebra. Through our project, eMath, we are supporting teachers to be willing to adapt to new digital technologies that may be useful for your students to manipulate mathematical objects and perceive relationships between objects and relations of relations.Peer reviewe
Combined use of the GGSFT data base and on Board Marine Collected Data to Model the Moho Beneath the Powell Basin, Antarctica
No full textThe Powell Basin is a small oceanic basin located at the NE end of the Antarctic Peninsula developed during the Early Miocene and mostly surrounded by the continental crusts of the South Orkney Microcontinent, South Scotia Ridge and Antarctic Peninsula margins. Gravity data from the SCAN 97 cruise obtained with the R/V Hespérides and data from the Global Gravity Grid and Sea Floor Topography (GGSFT) database (Sandwell and Smith, 1997) are used to determine the 3D geometry of the crustal-mantle interface (CMI) by numerical inversion methods. Water layer contribution and sedimentary effects were eliminated from the Free Air anomaly to obtain the total anomaly. Sedimentary effects were obtained from the analysis of existing and new SCAN 97 multichannel seismic profiles (MCS). The regional anomaly was obtained after spectral and filtering processes. The smooth 3D geometry of the crustal mantle interface obtained after inversion of the regional anomaly shows an increase in the thickness of the crust towards the continental margins and a NW-SE oriented axis of symmetry coinciding with the position of an older oceanic spreading axis. This interface shows a moderate uplift towards the western part and depicts two main uplifts to the northern and eastern sectors
Viewpoint: digital paediatrics-so close yet so far away
No full textTechnology is driving a revolution in healthcare, but paediatric services have not fully harnessed the potential. Digital health solutions yet to achieve their promise in paediatrics include electronic health records, decision support systems, telemedicine and remote consultations, despite the accelerated uptake during the COVID-19 pandemic. There are also significant potential benefits in digitally enabled research, including systems to identify and recruit participants online or through health records, tools to extract data points from routine data sets rather than new data collection, and remote approaches to outcome measurement. Children and their families are increasingly becoming digital health citizens, able to manage their own health and use of health services through mobile apps and wearables such as fitness trackers. Ironically, one barrier to the uptake of these technologies is that the fast pace of change in this area means the evidence base behind many of these tools remains underdeveloped. Clinicians are often sceptical of innovations which appear largely driven by enthusiasts rather than science. Rigorous studies are needed to demonstrate safety and effectiveness. Regulators need to be agile and responsive. Implementation needs adequate resource and time, and needs to minimise risks and address concerns, such as worries over losing human contact. Digital health care needs to be embedded in medical education and training so that clinicians are trained in the use of innovations and can understand how to embed within services. In this way, digital paediatrics can deliver benefits to the profession, to services and to our patients
07-06-1983 Justice Powell, Dissenting and Concurring
No full textJUSTICE POWELL, with whom THE CHIEF JUSTICE, JUSTICE BLACKMUN, and JUSTICE REHNQUIST join as to Parts I and II, dissenting in part and with whom THE CHIEF JUSTICE, JUSTICE BLACKMUN, JUSTICE REHNQUIST, and JUSTICE O\u27CONNOR join as to Part III, concurring in part
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