En el campo del lenguaje y la lectoescritura, la renovación educativa parece estar situándose en la batalla por el diseño abierto y la evaluación informal. En este artículo se propone un modelo teórico para la lectoescritura flexible que pueda soportar las posibilidades que se abren y evitar los inconvenientes que amenazan a los actuales métodos informales de renovación a los que está dedicado el tema central de este número. 相似文献
BackgroundAthletes tend to have better visuo-motor performance than do sedentary individuals. However, several basic visual-function and perceptual parameters remain unexplored to date. In this study, we investigated whether differences exist in visual function, performance, and processing between basketball players and individuals without a sport-involvement background.MethodsA total of 33 healthy men with no visual impairment or pathology were divided into 2 groups, depending on the involvement in sport (semi-professional basketball players and sedentary individuals). We tested their baseline heart-rate variability in the resting position apart from subjective questionnaires to determine their physical fitness level, and we checked their visual function, performance, and processing through an extended battery of optometric tests.ResultsThe 2 groups differed in resting heart-rate variability parameters (p < 0.001), confirming their dissimilarities in regular time practising sports per week. The basketball players showed a closer breakpoint and recovery nearpoint of convergence, a higher fusional-vergence rate, better discriminability halos, and better eye–hand coordination (all p values < 0.05).ConclusionThese results show evidence that athletes, basketball players in this case, exhibit better performance in several visual abilities in comparison to a group of individuals without sporting backgrounds, suggesting an improvement due to the systematic involvement of those skills during basketball practice. 相似文献
One of the most widely used solutions to fix and preserve organic tissues is formaldehyde, despite reservations regarding its toxicity and the fact that formaldehyde-embalmed bodies lose their original characteristics. Anatomy laboratories have been replacing formaldehyde with solutions that retain the characteristics of fresh tissue. For this purpose, alternative solutions with a very low concentration of formaldehyde or without any formaldehyde have been analyzed. The objective of this study was to compare biometry, coloration, haptic properties, and bacterial load on animal specimens (pig kidneys) embalmed with formaldehyde, and with Chilean Conservative Fixative Solution with and without formaldehyde (formaldehyde chCFS and formaldehyde-free chCFS). Also, the perception of health and biological science students toward specimens treated with different solutions was assessed. The results indicated that there were no significant differences in specimens’ retraction, or bacterial load. Students showed a preference for organs embalmed in formaldehyde chCFS and formaldehyde-free chCFS; indicating that with these treatments they could better visualize structures and that the prosections had greater flexibility and the colors were more similar to those of fresh tissue. Additionally, students recommended the material embalmed in formaldehyde chCFS and formaldehyde-free chCFS for anatomy learning. In contrast, students indicated that formaldehyde-fixation negatively affected their practical experience. In conclusion, embalming with formaldehyde chCFS or formaldehyde-free chCFS provides an advantageous practical experience over the use of formaldehyde and may be an alternative to replace the use of formaldehyde in anatomy laboratories. 相似文献
Since the first Olympic Games, the figure of the athlete has roused enormous passion. One may wonder if nowadays the cultural mechanisms that produce them are analogous and perform the same functions as in the past. This article aims to answer these questions. For this purpose, we have relied on the analysis of the discourse from different actors in the 2010 European Symposium of Sports “Thinking Sports, Transforming Society: The EU in favor of citizenship for the XXI Century”. The results will provide relevant information about the responsibility of the mass media in the production of a sports spectacle, the role of the big brands and the exemplarity of the sports’ elite. In this manner, the need was conveyed of producing a different view of sports, so that in the contest between humanistic values and materialistic values, those who contribute to the welfare of the citizens could achieve glory. 相似文献
Research in Science Education - The theory of evolution is the backbone of the biological sciences. Arguably, this is the reason why evolution education is an extensively investigated issue in... 相似文献
Covid-19 literacy, induced by the coronavirus disease (2019), is characterized as the understanding of Covid-19 as well as informed decisions based upon this understanding. This type of literacy is closely related to health literacy, scientific literacy, and scientific media literacy. It may be obvious to say that Covid-19 literacy is a key factor for governments to effectively manage the Covid-19 transition. However, lack of literature exists about Covid-19 literacy among university students. Therefore, the current study aimed to determine the Covid-19 literacy level among 4168 students from a Colombian university. The data were derived from students’ responses to a 25–item anonymous online self-reporting questionnaire. We found that 21–25-year age group, graduate students,?students enrolled prior to 2015, and medical students had a significantly higher mean score. Moreover, the Internet (86.8%) was the most popular source of information from which participants gained most information regarding Covid-19. Furthermore, 58.5% of the participants considered health workers as a source that can provide accurate information. Most importantly, the findings reveal the students’ knowledge about (1) the role of an eventual process of vaccination, (2) the test currently used as diagnostic for Covid-19, and (3) the fatality rate, three aspects of Covid-19 literacy that deserve more attention. The findings provide a useful basis for the formulation of policies and concrete actions in improving Covid-19 literacy.
In the following essay, I will discuss D.Johnson's argument in her ETHICOMP99 KeynoteSpeech (Johnson 1999) regarding the possiblefuture disappearance of computer ethics as anautonomous discipline, and I will analyze somelikely objections to Johnson's view.In the future, there are two ways in whichcomputer ethics might disappear: (1) therejection of computer ethics as an aspect ofapplied ethics, or (2) the rejection ofcomputer ethics as an autonomous discipline.The first path, it seems to me, would lead tothe death of the entire field of appliedethics, while the second path would lead onlyto the death of computer ethics as a separatesubject. Computer technology is becoming very pervasive,and each scientific field includes somediscipline-specific computing. For the likelyforeseeable future, disciplines such asbioethics and engineering ethics will have todeal with ethical issues involving the role ofcomputers. I will argue that computer ethics inthis sense is unlikely to disappear, even ifcomputer ethics ceases to be considered as aseparate discipline.In order to understand which path will befollowed by computer ethics, I will compareJohnson's argument with ideas of earlierthinkers like N. Wiener (1950) and B. Russell(1932). Although Russell did not specificallyconsider computer technology, he had somegood intuitions about the development ofsocieties by means of technology.My conclusion will be two-fold: (1) thatapplied ethics will not die, but it may make nosense in the future to talk about computerethics as a separate field; and (2) thatcomputer ethics will not simply become``ordinary ethics', contrary to Johnson's view. 相似文献
The aim of this article is to present the Procedure for the Assessment of Thinking in Interaction (PAT), an instrument for the assessment of shared thinking. Following an introduction of our concept or “shared thinking”, such as appears in contexts of interaction, we present the results and conclusions obtained from its use in a cross-sectional and a longitudinal developmental study. 相似文献
This paper deals with a semester-long educational experience the authors led at the University of Calabria for reproducing current developments and uncertainties in real-world concurrent engineering, knowledge management practice and virtual enterprise organization. Students with different backgrounds (mechanical engineering, computer science engineering and management engineering) were selected in order to form a laboratory class and then were divided into many multidisciplinary teams. Such teams played different roles and were required to collaborate on the Web to simulate a virtual enterprise, which was aimed at designing virtual prototypes of average complexity articles. In addition to that, any team was involved in the construction of a knowledge base for codifying the explicit knowledge arising from the execution of technical and managerial tasks. The paper deals with models, methodologies and technologies that have been used in this laboratory experience and, moreover, it describes an approach for simulating, in an educational environment, some aspects of the behaviour of virtual enterprises generated by a virtual organization. 相似文献