178 research outputs found

    Parody and Fair Use: The Critical Question

    Get PDF
    Criticism has long been grounds for fair use status. This comment argues that parody\u27s value, and its qualification for fair use status, should be defined by its critical effect. It follows then, that the amount which the parody should be able to borrow should be measured in terms of this critical effect: the parodist should be able to borrow the amount necessary to achieve effectively her work\u27s critical purpose, which is the only reason for allowing fair use in the first place. This comment begins with an examination of the fair use doctrine and its application to parody by courts and commentators. The comment then shows how most courts have failed to recognize the special place of criticism in parody. It argues that this failure has led courts to inept definitions of parody which distort its function and obscure its value. The comment then proposes a test for protecting valid parody, based on the work\u27s critical effect, and suggests a method which will lead to an equitable balance between the needs of two art forms when they collide, as they inevitably must when one work parodies another

    An analysis of mental workload and psychological stress in pilots during actual flight using heart rate and subjective measurements

    Get PDF
    We explored in the same study the two concepts of mental workload and psychological stress and their relationships with piloting activity and heart rate in low experienced pilots. Three low experienced pilots (3 males) performed 12 real flights in visual condition (lasting approximately 60 min) with a single engine piston Socata TB-20. Results revealed higher mental workload and stress levels for take-off and landing in comparison to other flight segments. Cardiovascular measurements revealed consistent result as the highest heart rate responses (in comparison to a resting heart rate baseline) occurred during take-off (+45.23%) and landing (+29.90%). We also found a significant positive correlation between heart rate and mental workload/stress levels. In addition, mental workload and psychological stress levels during the various flight segments were positively correlated. With the exception of a positive correlation between mental workload and flight performances during the cruise segment only, we were not able to uncover tangible results regarding the relationship between workload/stress, heart rate and flight performances. This latter aspect is discussed in relation to the Yerkes-Dodson law

    Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment

    Get PDF
    Background: Blue-depleted light environments (BDLEs) may result in beneficial health outcomes for hospital inpatients in some cases. However, less is known about the effects on hospital staff working shifts. This study aimed to explore the effects of a BDLE compared with a standard hospital light environment (STLE) in a naturalistic setting on nurses’ functioning during shifts and sleep patterns between shifts. Methods: Twenty-five nurses recruited from St. Olavs Hospital in Trondheim, Norway, completed 14 days of actigraphy recordings and self-reported assessments of sleep (e.g., total sleep time/sleep efficiency) and functioning while working shifts (e.g., mood, stress levels/caffeine use) in two different light environments. Additionally, participants were asked to complete several scales and questionnaires to assess the symptoms of medical conditions and mental health conditions and the side effects associated with each light environment. Results: A multilevel fixed-effects regression model showed a within-subject increase in subjective sleepiness (by 17%) during evening shifts in the BDLE compared with the STLE (p = .034; Cohen’s d = 0.49) and an 0.2 increase in number of caffeinated beverages during nightshifts in the STLE compared with the BDLE (p = .027; Cohen’s d = 0.37). There were no significant differences on any sleep measures (either based on sleep diary data or actigraphy recordings) nor on self-reported levels of stress or mood across the two conditions. Exploratory between-group analyses of questionnaire data showed that there were no significant differences except that nurses working in the BDLE reported perceiving the lighting as warmer (p = .009) and more relaxing (p = .023) than nurses working in the STLE. Conclusions: Overall, there was little evidence that the change in the light environment had any negative impact on nurses’ sleep and function, despite some indication of increased evening sleepiness in the BDLE. We recommend further investigations on this topic before BDLEs are implemented as standard solutions in healthcare institutions and propose specific suggestions for designing future large-scale trials and cohort studies.publishedVersio

    Raman phonons as a probe of disorder, fluctuations and local structure in doped and undoped orthorhombic and rhombohedral manganites

    Full text link
    We present a rationalization of the Raman spectra of orthorhombic and rhombohedral, stoichiometric and doped, manganese perovskites. In particular we study RMnO3 (R= La, Pr, Nd, Tb, Ho, Er, Y and Ca) and the different phases of Ca or Sr doped RMnO3 compounds as well as cation deficient RMnO3. The spectra of manganites can be understood as combinations of two kinds of spectra corresponding to two structural configurations of MnO6 octahedra and independently of the average structure obtained by diffraction techniques. The main peaks of compounds with regular MnO6 octahedra, as CaMnO3, highly Ca doped LaMnO3 or the metallic phases of Ca or Sr doped LaMnO3, are bending and tilt MnO6 octahedra modes which correlate to R-O(1) bonds and Mn-O-Mn angles respectively. In low and optimally doped manganites, the intensity and width of the broad bands are related to the amplitude of the dynamic fluctuations produced by polaron hopping in the paramagnetic insulating regime. The activation energy, which is proportional to the polaron binding energy, is the measure of this amplitude. This study permits to detect and confirm the coexistence, in several compounds, of a paramagnetic matrix with lattice polaron together with regions without dynamic or static octahedron distortions, identical to the ferromagnetic metallic phase. We show that Raman spectroscopy is an excellent tool to obtain information on the local structure of the different micro or macro-phases present simultaneously in many manganites.Comment: Submitted to PR

    Dysfunctional beliefs and attitudes about sleep (DBAS) mediate outcomes in dCBT-I on psychological distress, fatigue, and insomnia severity

    Get PDF
    Objective/background Digital cognitive behavioral therapy for insomnia (dCBT-I) improves several sleep and health outcomes in individuals with insomnia. This study investigates whether changes in Dysfunctional Beliefs and Attitudes about Sleep (DBAS) during dCBT-I mediate changes in psychological distress, fatigue, and insomnia severity. Patients/methods The study presents a secondary planned analysis of data from 1073 participants in a randomized control trial (Total sample = 1721) of dCBT-I compared with patient education (PE). Self-ratings with the Dysfunctional Beliefs and Attitudes about Sleep (DBAS), the Hospital Anxiety Depression Scale (HADS), the Chalder Fatigue Scale (CFQ), and the Insomnia Severity Index (ISI) were obtained at baseline and 9-week follow-up. Hayes PROCESS mediation analyses were conducted to test for mediation. Results and conclusion sDBAS scores were significantly reduced at 9-week follow-up for those randomized to dCBT-I (n = 566) compared with PE (n = 507). The estimated mean difference was −1.49 (95% CI -1.66 to −1.31, p < .001, Cohen's d. = 0.93). DBAS mediated all the effect of dCBT-I on the HADS and the CFQ, and 64% of the change on the ISI (Estimated indirect effect −3.14, 95% CI -3.60 to −2.68) at 9-week follow-up compared with PE. Changes in the DBAS fully mediated the effects of dCBT-I on psychological distress and fatigue, and the DBAS partially mediated the effects on insomnia severity. These findings may have implications for understanding how dCBT-I works and highlights the role of changing cognitions in dCBT-I.publishedVersio

    Digital cognitive behaviour therapy for insomnia in individuals with self-reported insomnia and chronic fatigue: A secondary analysis of a large scale randomized controlled trial

    Get PDF
    Insomnia is associated with fatigue, but it is unclear whether response to cognitive behaviour therapy for insomnia is altered in individuals with co-occurring symptoms of insomnia and chronic fatigue. This is a secondary analysis using data from 1717 participants with self-reported insomnia in a community-based randomized controlled trial of digital cognitive behaviour therapy for insomnia compared with patient education. We employed baseline ratings of the Chalder Fatigue Questionnaire to identify participants with more or fewer symptoms of self-reported chronic fatigue (chronic fatigue, n = 592; no chronic fatigue, n = 1125). We used linear mixed models with Insomnia Severity Index, Short Form-12 mental health, Short Form-12 physical health, and the Hospital Anxiety and Depression Scale separately as outcome variables. The main covariates were main effects and interactions for time (baseline versus 9-week follow-up), intervention, and chronic fatigue. Participants with chronic fatigue reported significantly greater improvements following digital cognitive behaviour therapy for insomnia compared with patient education on the Insomnia Severity Index (Cohen's d = 1.36, p < 0.001), Short Form-12 mental health (Cohen's d = 0.19, p = 0.029), and Hospital Anxiety and Depression Scale (Cohen's d = 0.18, p = 0.010). There were no significant differences in the effectiveness of digital cognitive behaviour therapy for insomnia between chronic fatigue and no chronic fatigue participants on any outcome. We conclude that in a large community-based sample of adults with insomnia, co-occurring chronic fatigue did not moderate the effectiveness of digital cognitive behaviour therapy for insomnia on any of the tested outcomes. This may further establish digital cognitive behaviour therapy for insomnia as an adjunctive intervention in individuals with physical and mental disorders.publishedVersio

    Aid and Poverty

    Get PDF
    SUMMARY The volume of aid received by the less developed countries, with some exceptions, is small in relation to the existing scale of poverty in those countries. Aid makes a significant but incremental contribution to available national resources. What aid can or cannot do for the poor has to be viewed and assessed within the context of overall national policies and priorities towards poverty elimination. In that context, it can be said that aid has made a smaller impact on poverty than one would expect. The reasons for this are varied and complex, and point to shortcomings in both donor and recipient policies. The aid experience, however, is by no means wholly negative. Particular forms of aid can make a positive contribution to a reduction in poverty, where national policies are directed towards the same objectives. More important for the future, perhaps, are the lessons that can be learnt from the aid experience about the do's and don'ts of aid policy. SOMMAIRE L'aide et la pauvreté Le volume de l'aide reçu par les pays moins développés, avec quelques exceptions, est petit en rapport avec la pauvreté dans ces pays. L'aide contribue substantiellement mais d'une manière incrémentale aux resources nationales disponibles de ces pays. Le potentiel de l'aide doit être évalué dans le contexte globale des politiques nationales et des priorités envers l'élimination de la pauvreté. Dans ce contexte, on peut dire que l'influence de l'aide sur la pauvreté a été plus petite de ce qu'on aurait prévu. Les raisons pour ceci sont diverses et complexes, et soulignent des défauts dans les politiques des donneurs, aussi bien que dans celles des pays recevants. Cependant, l'expérience de l'aide n'est d'aucune manière entièrement négative. Certaines formes d'aide peuvent réduire la pauvreté, lá où les politiques nationales sont formulées dans le même but. Plus important pour l'avenir, peut?être, sont les leçons de l'expérience de l'aide en ce qui concerne ce qu'on peut faire, et ce qu'on ne devrait pas faire en matière de politique de l'aide. RESUMEN Ayuda y Pobreza Con algunas excepciones, el volumen de la ayuda recibida por los países menos desarrollados es pequeño en relación a la escala de pobreza existente en esos países. La ayuda implica una contribución significativa y adicional a los recursos nacionales existentes. Lo que la ayuda puede y no puede hacer en favor de los pobres, debe considerarse y evaluarse en el contexto del conjunto de las políticas y prioridades nacionales de erradicación de la pobreza. En este contexto puede decirse que el impacto de la ayuda sobre la pobreza, es menor del que podría esperarse. Las razones son variadas y complejas y se refieren a deficiencias en las políticas de donantes y receptores. No obstante, la experiencia en ayuda está lejos de ser totalmente negativa. Determinadas formas de ayuda pueden realizar una contribución positiva en la reducción de la pobreza, en los casos en que las políticas nacionales están dirigidas a los mismos objetivos. Probablemente lo más importante para el futuro, son las lecciones que la experiencia en ayuda proporciona acerca de lo que debería y no debería involucrar la política de ayuda

    The future of Malay–Chinese relations in Malaysia

    Get PDF
    In this chapter, the Malay–Chinese relation is examined by considering the history and nature of the relationship, the ensuing intergroup conflict, and the steps taken by the government and civil society groups to address the conflict. Finally, a psychocultural approach to building peace between the two groups is proposed
    corecore