1,721,004 research outputs found
INCLUSION THROUGH TRAINING AND METHODOLOGY OF ADAPTED PHYSICAL EDUCATION
No full textThe theme of practicing sport for people with disabilities goes far beyond the simplification of a healthy lifestyle, but refers to complex aspects of a pedagogical, educational, social, and cultural nature that combine to outline the education and training system of future professionals in this field.
This is demonstrated by the growing interest that the question has aroused in recent decades, with the issuing of supranational regulatory provisions that recall the right of all minors, without distinction, to an education capable of harmoniously involving every dimension that constitutes human being, including the education of the body; and this is highlighted by the numerous reviews of international studies which underline the essential nature of mainstreaming in physical education and sports practices.
In the light of these considerations, Physical Education and Sports Science contribute, on an equal footing with other disciplines, to promoting individual growth and enhancement in the processes of social and cultural inclusion. Consequently, it is necessary to recall the assumption of a procedural habitus capable of identifying the most suitable teaching and methodological strategies to promote processes of inclusion with the adoption of a physical and sporting practice that is "for everyone" and "of each".
For this purpose, the research examined the scientific, disciplinary, and professional orientations inherent to Adapted Physical Education (APE), illustrated to future professionals within the course of General and Special Pedagogy, for the degree course in Activity Sciences Sports and motor skills of the University of Palermo.
In this direction, it was intended to test how the use of US-based APE methodologies would allow the improvement of the coping strategies of future Physical Education professionals. In particular, the five cognitive and behavioural aspects developed by future inclusive motor education professionals were examined at the end of a specific training course, regarding the coping styles developed through the use of APE methodology
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Effects of magnesium ions on ribosomes: A fluorescence study
No full textFluorescence intensity measurements of ethidium bromide (EB) bound to ribosomal RNA (rRNA) in suspensions of 30S and 50S subunits, of 70S ribosomal particles and of protein-free extracted rRNA are presented. Changes in the intercalation of EB reflect changes in conformation and degree of exposure of rRNA. The effect of removal of magnesium ions on the binding of EB is compared in protein-free rRNA and in ribosomal particles by a Scatchard plot analysis. In free ribosomal RNA the number of bound EBs do not depend on magnesium content, only the association constant is affected. In intact 70S particles and both in the separated 50S and 30S subunits the presence of magnesium greatly reduces binding of EB and no saturation of the fluorescence intensity with rRNA concentration is observed, preventing a Scatchard plot analysis. Removal of magnesium restores a strong EB intercalation. Then magnesium ions induce a conformational change in the 70S particles as well as in the separated subunits. The different behavior of the free-rRNA and of the ribosomal particles indicates that ribosomal proteins are relevant to the structural changes induced by magnesium ions. The comparison of the number of excluded sites and of the association constant in the 30S, 50S subunits and in the 70S particles indicates that even without Mg2+ ions the two subunits still interact, at variance with the commonly shared opinion that subunits dissociation takes place at low magnesium concentration
Structural variations induced by magnesium ions and temperature in the large ribosomal subunit from the extreme thermophile Sulfolobus solfataricus
No full textSmall-angle neutron scattering (SANS) measurements on the large 50S ribosomal subunit of the extreme thermophile archaebacterium Sulfolobus solfataricus are presented. The structural effects induced by magnesium ions and temperature are investigated. Supramolecular aggregation was present in all the investigated conditions. Removal of magnesium ions and increase of temperature reduce the intensity of the scattering at Q=0. This reduction is discussed looking at the Fourier inversion of the scattering intensity, which includes both inter- and intra-particle contributions
Radiofrequency dielectric spectroscopy of ribosome suspensions
No full textDielectric measurements on different ribosome suspensions were carried out in the frequency range from 10 kHz to 1 GHz. In intact ribosomes two dispersions were detected: one around 100 kHz and the other one in the MHz region. In separated ribosomal subunits and in ribosomes resuspended in a buffer with no magnesium ions (relaxed ribosomes) only the MHz dispersion was observed. Electrical conductivities of the samples at 1 kHz were also measured. The temperature dependence of the two dispersions was investigated and a tentative attribution was proposed
Water-induced dc conductivity of DNA: A dielectric-gravimetric study
No full textThe dc conductivity of hydrated Li-DNA and Na-DNA powdered samples has been detected in a composite capacitor without electrode contacts. In all slightly hydrated samples the conductivity increases exponentially along with the water content with the same exponential factor, confirming initial suggestions of an intrinsic semiconductivity. Above about 25% water content, capillary condensation produces an additional relaxation effect. © 1988 The American Physical Society
Small angle neutron scattering analysis of thermal stability of 23S rRNA and the intact 50S subunits of Sulfolobus solfataricus
No full textThe ribosomes of the extremely thermophilic archaebacterium, Sulfolobus solfataricus, are very resistant to thermal denaturation (optimal growth temperature 87 degrees C), remaining essentially intact up to above 90 degrees C, However, the separate ribosomal components (rRNA and r-proteins) are less thermally stable than the ribosome as a whole, indicating that the mode of interaction of all of the components within the ribonucleoprotein particle play an essential role in determining thermal stability, To get some insight into the structural features of the thermophilic ribosome, we performed small angle neutron scattering (SANS) measurements at various temperatures on Sulfolobus solfataricus intact large ribosomal subunits (50S) and deproteinated large ribosomal subunit RNA (23S). Even if the scattering profiles suggest the presence of supramolecular aggregates in all of the samples and at all of the investigated temperatures, the measured form factors indicated for both samples that, at temperatures above 70 degrees C, the suspended particles underwent a structural rearrangement. This finding is likely to reflect single particles' properties, since S. solfataricus ribosomes are known to be biologically activated only above 60 degrees C, and there are indications that such activation requires a conformational rearrangement of the particle, A remarkable superimposition of the percentage variation of the volume from neutron scattering and of the absorbancy increment with respect to temperature supports this view. (C) 1998 Elsevier Science B.V
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