1,481 research outputs found

    The travesty of egoism : same-gender passion and homosocial desire in a Dutch seventeenth-Century morality play

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    In the seventeenth-century Netherlands, drama and politics were interwoven with one another. This was also the case with the controversial morality play Tieranny van Eigenbaat (Tyranny of Egoism, 1679), which opposed the House of Orange, and especially William III, Stadtholder of the Netherlands and King of England (who was, according to the writers of the play, a true example of uncontrolled egoism). Although the main character Eigenbaat (Egoism) disguises himself as a warrior woman (an Amazon) to seize power, his cross-dressing has not been discussed in relation to rumors surrounding William's alleged sexual preferences. By "reading against the grain," this article discusses the so-called faultlines, where the characters display same-gender passions for each other. The article focusses on two examples of such relationships: Egoism, who seduces Lady Will, while in female disguise, and the intimate nature of Egoism's relationship with his male servant and slave, Vice. As such, the article offers an elaboration on the thesis that Tieranny van Eigenbaat was used by the republican authorities of Amsterdam as a propaganda play to discredit William III for rule, as well as his offspring

    Therapeutic use of humor in occupational therapy

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    A critical analysis of media discourse on the South African broadband policy

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    Broadband Internet access promises a number of socio-economic benefits to citizens of developing countries like South Africa (SA). However poor policy outcomes of Information and Communication Technology (ICT), particularly in the area of poverty alleviation are evident in SA. This study utilizes Citation Analysis and Habermasien Critical Discourse Analysis (CDA) for understanding media discourse on the SA Broadband Policy formulation process and focuses on the impact and implications of the discourse. Highlighting distortions in these discourses will enable the general public and decision makers to formulate a better informed opinion and should facilitate better understanding and decision making on the costs, need and relevance of broadband access

    Adsorption of Antimony by Birnessite and the Impact of Antimony on the Electrostatic Surface Properties of Variable-Charge Soil Minerals

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    Antimony (Sb) is a toxin that can be found in high concentrations in the soil due to anthropogenic sources. Antimony exists in soil as Sb(V) in the monovalent antimonate hydroxyanion. The adsorption mechanisms of Sb(V) are not well-characterized. The objective of this study was to further elucidate Sb(V) adsorption mechanisms by examining the impact of adsorption on surface charging characteristics of gibbsite, goethite, birnessite, and kaolinite. Also examined was Sb(V), SO4 [sulfate], and PO4 [phosphate] adsorption by birnessite. Electrophoretic mobility and potentiometric titrations were employed to examine the ζ-potential [zeta-potential] and net proton surface charge density as a function of pH and ionic strength, and in the presence or absence of adsorbed Sb(V), phosphate, or sulfate. Competitive batch adsorption studies were performed to examine Sb(V), SO4, and PO4 adsorption as a function of pH, ionic strength, and competitive environment. Results suggest that Sb(V) participates in inner-sphere adsorption by gibbsite, goethite, and kaolinite in acidic conditions, PO4 participates in inner-sphere adsorption by gibbsite, goethite and kaolinite in the pH range studied, and that SO4 participates in inner- and outer-sphere adsorption by gibbsite, goethite, and kaolinite with the former mechanisms becoming more important in acidic conditions. Adsorption of Sb(V) and PO4 by birnessite had little impact on the surface charge characteristics indicating outer-sphere adsorption. Batch adsorption edge studies showed Sb(V) and PO4 retention to be dependent on pH and ionic strength, supporting electrostatic adsorption mechanisms. Batch adsorption studies showed SO4 was not adsorbed by birnessite in the pH 3 to 11 range. The adsorption data was modeled using FITEQL 4.0 and the diffuse layer model (DLM). The DLM adequately described Sb(V) and PO4 adsorption by birnessite using electrostatic surface complexes

    Movement and stretching imagery during flexibility training

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    The aim of this study was to examine the effect of movement and stretching imagery on increases in flexibility. Thirty volunteers took part in a 4 week flexibility training programme. They were randomly assigned to one of three groups: (1) movement imagery, where participants imagined moving the limb they were stretching; (2) stretching imagery, where participants imagined the physiological processes involved in stretching the muscle; and (3) control, where participants did not engage in mental imagery. Active and passive range of motion around the hip was assessed before and after the programme. Participants provided specific ratings of vividness and comfort throughout the programme. Results showed significant increases in flexibility over time, but no differences between the three groups. A significant relationship was found, however, between improved flexibility and vividness ratings in the movement imagery group. Furthermore, both imagery groups scored significantly higher than the control group on levels of comfort, with the movement imagery group also scoring significantly higher than the stretching imagery group. We conclude that the imagery had stronger psychological than physiological effects, but that there is potential for enhancing physiological effects by maximizing imagery vividness, particularly for movement imagery

    Statistical analysis of time-resolved emission from ensembles of semiconductor quantum dots: Interpretation of exponential decay models

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    We present a statistical analysis of time-resolved spontaneous emission decay curves from ensembles of emitters, such as semiconductor quantum dots, with the aim of interpreting ubiquitous non-single-exponential decay. Contrary to what is widely assumed, the density of excited emitters and the intensity in an emission decay curve are not proportional, but the density is a time integral of the intensity. The integral relation is crucial to correctly interpret non-single-exponential decay. We derive the proper normalization for both a discrete and a continuous distribution of rates, where every decay component is multiplied by its radiative decay rate. A central result of our paper is the derivation of the emission decay curve when both radiative and nonradiative decays are independently distributed. In this case, the well-known emission quantum efficiency can no longer be expressed by a single number, but is also distributed. We derive a practical description of non-single-exponential emission decay curves in terms of a single distribution of decay rates; the resulting distribution is identified as the distribution of total decay rates weighted with the radiative rates. We apply our analysis to recent examples of colloidal quantum dot emission in suspensions and in photonic crystals, and we find that this important class of emitters is well described by a log-normal distribution of decay rates with a narrow and a broad distribution, respectively. Finally, we briefly discuss the Kohlrausch stretched-exponential model, and find that its normalization is ill defined for emitters with a realistic quantum efficiency of less than 100%.\ud \u

    Cultivatietheorie in een veranderd medialandschap: Overzicht van eerdere studies en een toetsing voor een middelgrote stad

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    Contains fulltext : 3318.pdf (publisher's version ) (Open Access

    Nieuw kalibemestingsadvies voor grasland

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    De Commissie Bemesting Grasland en Voedergewassen heeft in 2000 het kalibemestingsadvies voor grasland op een aantal punten gewijzigd

    Feasibility of Reducing and Breaking Up University Students' Sedentary Behaviour: Pilot Trial and Process Evaluation

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    BACKGROUND: Accumulating high levels of sedentary behaviour has been linked to poor health outcomes. This study examined the feasibility and preliminary, short-term effects of a theory-based intervention aimed at reducing total and prolonged sedentary behaviour in University students. DESIGN: A quasi-experimental (pre-post) pilot study. Methods: Nine ambulatory undergraduate students (Mean age = 22 ± 2.32) participated in a one-on-one session, including an educational component around the health effects of sedentary behaviour and three distinct activities (feedback, “pros and cons” exercise, and suggested behaviour change strategies). In addition, automated daily text messages targeting sedentary behaviour were sent for 6 days (four messages per day at fixed intervals). The Behaviour Change Wheel framework guided the intervention design process. Outcomes were assessed over 6 days in pre- and post-intervention periods and included accelerometer-based (activPAL) and self-reported (Nightly-Week-U) total sedentary time, as well as accelerometer-based number of steps and prolonged sedentary time. Students completed a process evaluation interview upon completing the trial. RESULTS: From pre- to post-intervention, there was a significant reduction in accelerometer-based total and prolonged sedentary time during weekend days. In addition, there was a significant increase in accelerometer-based standing time and stepping during weekend days. There were no statistically significant changes in accelerometer-based sedentary time, standing time or number of steps during weekdays. Process evaluation results indicated that the intervention and its assessment is feasible. Reductions in sedentary time were likely to be mediated by positive changes in the student's reflective and automatic motivation. CONCLUSIONS: Findings from this small, short-term intervention suggest that a single one-on-one session, together with automated text messages, may help University students reduce sedentary behaviour and enhance movement during weekend days. Additional strategies to maximise the intervention effects are discussed (e.g., establishing a collaboration with University staff, introducing sit-to-stand desks, and/or facilitating social support). A randomised control trial assessing sedentary behaviour over a longer period is needed to adequately study the intervention's effectiveness
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