3,392 research outputs found

    Is it Better to Love Better Things?

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    It seems better to love virtue than vice, pleasure than pain, good than evil. Perhaps it's also better to love virtuous people than vicious people. But at the same time, it's repugnant to suggest that a mother should love her smarter, more athletic, better looking son than his dim, clumsy, ordinary brother. My task is to help sort out the conflicting intuitions about what we should love. In particular, I want to address a problem for the no-reasons view, the theory that love cannot be rationally justified. Since it seems better to love good people rather than evil villains, it appears that there are indeed reasons for (or, at least, against) love. Is it coherent to talk this way and deny that love can be justified? I think so and will explain how

    Cinematic

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    Is cinematicity a virtue in film? Is lack of cinematicity a defect? Berys Gaut thinks so. He claims that cinematicity is a pro tanto virtue in film. I disagree. I argue that the term “cinematic” principally refers to some cluster of characteristics found in films featuring the following: expansive scenery, extreme depth of field, high camera positioning, and elaborate tracking shots. We often use the word as a term of praise. And we are likely right to do so. We are right if we mean that the film does well what movies often do well. We are wrong if we mean that the film is good for doing what is merely distinctive of film. This issue has important implications for understanding the role of the medium in artistic evaluation. I argue that we should reject Gaut’s claim because it entails an implausibly strong medium specificity thesi

    Effects of curriculum change on medical graduates' preparedness for internship

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    Ph.D., Faculty of Health Sciences, University of the Witwatersrand, 2011INTRODUCTION: The University of the Witwatersrand (Wits) changed its medical curriculum in 2003 from a traditional, six-year curriculum to an integrated, problem-based, four year Graduate Entry Medical Programme (GEMP), preceded by two years of basic and medical sciences at university level or a suitable undergraduate degree. AIMS: To compare the preparedness for internship of Wits graduates from the old and new curricula on fifty seven items grouped into nine categories which were identified during the development and validation of a Model of the Competent South African Intern. METHODS: A stratified random sample of interns was drawn from the last graduates of the traditional curriculum and a matched sample of interns from the first graduates of the GEMP. Both quantitative and qualitative methods were used. For each sampled intern a supervisor, colleague and patient were selected by convenience sampling. A questionnaire was completed by interns, supervisors and colleagues followed by an interview to qualify responses at the extremes of the Likert-type scale and link them to curriculum learning opportunities. A semi- structured interview was conducted with patients and a global score allocated. The Cochran-Mantel-Haenszel Statistic for ordinal data was used. Comparisons were drawn between the competence of graduates from the traditional and GEMP curricula from the perspectives of interns, supervisors, colleagues and patients. Interview data were analysed using thematic analysis techniques. RESULTS: Significant differences were reported by interns in six of the nine categories. In one category, “fundamental theoretical knowledge” the GEMP graduates rated themselves significantly less prepared in the basic medical sciences (Pathology, Microbiology and Pathophysiology, p=0.01; Pharmacology, p<0.0001) but highly significantly better prepared in the theory of interpersonal communication, p<0.000001). The GEMP graduates rated themselves significantly better prepared in the other five categories, “medical problem solving” (p=0.009), “holistic patient management” (p=0.0004), “community health” (p=0.0002), “communication skills” (p=0.02) and “self directed learning” (p=0.0001). vii Supervisors reported significant differences in “teamwork” (p=0.045) and “personal attributes” (p=0.045) giving fewer low scores to the GEMP graduates. There were no significant differences between the category scores for colleagues. Qualitative analysis included vertical summaries of interview data and horizontal or comparative interpretations with quotations in order not to lose the voice of the interns, supervisors, colleagues and patients. DISCUSSION AND CONCLUSION: GEMP graduates rated themselves better prepared in those areas which had been identified as reasons for curriculum change but less prepared in specific basic medical sciences. Although these were not reported as significantly different by supervisors or colleagues they require attention. Other than this, according to the judgements of the informants, the competence of GEMP graduates was similar to that of traditional graduates in certain areas and significantly better in others, which appears to justify the major medical curriculum change undertaken at this University

    A recently discovered clypeasteroid, Echinodiscus colchesterensis species novum, from the Alexandria Formation (Late Tertiary), South Africa

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    A recently discovered astriclypeid, Echinodiscus colchesterensis sp. nov. from the Late Tertiary of South Africa is described and classified as ancestral to the living E. bisperforatus on the basis of certain morphological characteristics and parameters. These include a smaller interlunule angle, different ambitus shape, breadth/ length ratio, and similar growth trends.CSIR post-graduate bursary; Institute for Coastal Research, University of Port Elizabet

    Modeling the tensile behavior of fiber bundles with irregular constituent fibers

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    In this paper, the effect of fiber dimensional irregularities on the tensile behavior of fiber bundles is modeled, using the finite element method (FEM). Fiber dimensional irregularities are simulated with sine waves of different magnitude. The specific stress-strain curves of fiber bundles and the constituent single fibers are obtained and compared. The results indicate that fiber diameter irregularity along fiber length has a significant effect on the tensile behavior of the fiber bundle. For a bundle of uniform fibers of different diameters, all constituent fibers will break simultaneously regardless of the fiber diameter. Similarly, if fibers within a bundle have the same pattern and level of diameter irregularity along fiber length, the fibers will break at the same time also regardless of the difference in average diameter of each fiber. In these cases, the specific stress and strain curve for the bundle overlaps with that of the constituent fibers. When the fiber bundle consists of single fibers with different levels of diameter irregularity, the specific stress-strain and load-elongation curves of the fiber bundle exhibit a stepped or &ldquo;ladder&rdquo; shape. The fiber with the highest irregularity breaks first, even when the thinnest section of the fiber is still coarser than the diameter of a very thin but uniform fiber in the bundle. This study suggests that fiber diameter irregularity along fiber length is a more important factor than the fiber diameter itself in determining the tensile behavior of a fiber bundle consisting of irregular fibers.<br /

    Parvovirus-derived endogenous viral elements in two South American rodent genomes

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    We describe endogenous viral elements (EVEs) derived from parvoviruses (family &lt;i&gt;Parvoviridae&lt;/i&gt;) in the long-tailed chinchilla (&lt;i&gt;Chinchilla lanigera&lt;/i&gt;) and degu (&lt;i&gt;Octodon degus&lt;/i&gt;) genomes. The novel EVEs include Dependovirus-related elements, and representatives of a clearly distinct parvovirus lineage that also has endogenous representatives in marsupial genomes. In the degu, one dependovirus-derived EVEs was found to encode an intact reading frame, and was differentially expressed &lt;i&gt;in vivo&lt;/i&gt;, with increased expression in the liver

    Female economic dependence and the morality of promiscuity

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    This article is made available through the Brunel Open Access Publishing Fund. Copyright @ The Author(s) 2014.In environments in which female economic dependence on a male mate is higher, male parental investment is more essential. In such environments, therefore, both sexes should value paternity certainty more and thus object more to promiscuity (because promiscuity undermines paternity certainty). We tested this theory of anti-promiscuity morality in two studies (N = 656 and N = 4,626) using U.S. samples. In both, we examined whether opposition to promiscuity was higher among people who perceived greater female economic dependence in their social network. In Study 2, we also tested whether economic indicators of female economic dependence (e.g., female income, welfare availability) predicted anti-promiscuity morality at the state level. Results from both studies supported the proposed theory. At the individual level, perceived female economic dependence explained significant variance in anti-promiscuity morality, even after controlling for variance explained by age, sex, religiosity, political conservatism, and the anti-promiscuity views of geographical neighbors. At the state level, median female income was strongly negatively related to anti-promiscuity morality and this relationship was fully mediated by perceived female economic dependence. These results were consistent with the view that anti-promiscuity beliefs may function to promote paternity certainty in circumstances where male parental investment is particularly important

    Reproduction in the zebra stallion (Equus burchelli Antiquorum) from the Kruger National Park

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    Reproductive characteristics of free-ranging zebra stallions are described using data collected from 270 cropped specimens and field observations of live animals. Socially zebra populations comprise coherent family groups dominated by a single stallion and consist of 2-11 individuals including foals. Excess stallions remain solitary or form stallion groups of two to seven individuals. The youngest stallion leading a family group was four years old. On average stallions attain psychological maturity at four and a half years of age, the pubertal interval ranging from age two to four and a half years. The youngest specimen with epididymal spermatozoa was two years old but generally this occurs at three and a half years but behavioural mechanisms prevent mature sub-adult stallions from mating with oestrous mares. Variationin testicle mass and seminiferous tubule diameter indicates that adult stallions have a reproductive peak during the summer (wet season) which coincides with the cycle of the mare. Genital abnormalities included two instances of unilateral testicular hypoplasia and one of bilateral cryptorchidism. Only the latter caused sterility

    Some reproductive abnormalities of the zebra stallion (Equus burchelli Antiquorum)

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