192 research outputs found

    Measuring attitudes towards Global Learning among future educators in England

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    This paper reports upon a multi-agency approach to measuring attitudes towards global learning among future educators at a university in the north-west of England. This study provides a response to concerns that global learning research and evaluation of global education interventions tend to focus upon short-term, observable outcomes rather than longer-term changes in behaviour, attitude, and practice. It is based upon the assumption that global learning in teacher education must focus upon the development of who the educator is as a person, including his or her values, attitudes, and associated dispositions. This paper will outline the process of constructing an attitude inventory, based upon Thurstone scaling, by a range of professionals working in local government, teacher education, and non-government organizations that promote global education. It reports upon the use of this survey at the beginning, middle, and end of a compulsory course completed by a cohort of 154 undergraduate students of primary teacher education. The findings show positive changes in attitudes towards global learning among females and eradication of the most negative attitudes towards global learning during the course of study. Causal factors relating to cultural practice are suggested. The limitations of this particular tool for researching global learning are discussed alongside the insight gained from this collaborative process of evaluation

    Entropic manifestations of topological order in three dimensions

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    We evaluate the entanglement entropy of exactly solvable Hamiltonians corresponding to general families of three-dimensional topological models. We show that the modification to the entropic area law due to three-dimensional topological properties is richer than the two-dimensional case. In addition to the reduction of the entropy caused by a nonzero vacuum expectation value of contractible loop operators, a topological invariant emerges that increases the entropy if the model consists of nontrivially braiding anyons. As a result the three-dimensional topological entanglement entropy provides only partial information about the two entropic topological invariants

    Understanding the decomposition reaction mechanism of chrysanthemic acid: a computational study

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    <p>Abstract</p> <p>Background</p> <p>Chrysanthemic acid (<b>CHA</b>) is a major product from the photodecomposition of pyrethrin which is an important class of pesticide compounds.</p> <p>In the following paper, Hybrid density functional theory (DFT) calculations of the potential energy surface (PES) for three possible channels decomposition of chrysanthemic acid <b>(</b>cis-trans isomerization, rearrangement and fragmentation) have been carried at the B3LYP/6-311+G** level of theory. DFT was employed to optimize the geometry parameters of the reactants, transition states, intermediates and products based on detailed potential energy surfaces (PES).</p> <p>Results</p> <p>Our results suggest that all three pathways of <b>CHA </b>are endothermic. DFT calculations revealed that the activation barriers for cis-trans isomerization are low, leading to a thermodynamically favorable process than other two pathways. We also investigated the solvent effect on the PES using the polarizable continuum model (PCM). In addition, time-dependent density functional theory (TDDFT) calculations showed that these reactions occur in the ground state rather than in an excited state.</p> <p>Conclusion</p> <p>The rearrangement process seems to be more favorable than the decomposition of <b>CHA </b>to carbene formation. The solvent effect calculations indicated no changes in the shape of the PES with three continua (water, ethanol and cyclohexane), although the solvents tend to stabilize all of the species.</p

    Female social and sexual interest across the menstrual cycle: the roles of pain, sleep and hormones

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    <p>Abstract</p> <p>Background</p> <p>Although research suggests that socio-sexual behavior changes in conjunction with the menstrual cycle, several potential factors are rarely taken into consideration. We investigated the role of changing hormone concentrations on self-reported physical discomfort, sleep, exercise and socio-sexual interest in young, healthy women.</p> <p>Methods</p> <p>Salivary hormones (dehydroepiandrosterone sulfate-DHEAS, progesterone, cortisol, testosterone, estradiol and estriol) and socio-sexual variables were measured in 20 women taking oral contraceptives (OC group) and 20 not using OCs (control group). Outcome measures were adapted from questionnaires of menstrual cycle-related symptoms, physical activity, and interpersonal relations. Testing occurred during menstruation (T1), mid-cycle (T2), and during the luteal phase (T3). Changes in behavior were assessed across time points and between groups. Additionally, correlations between hormones and socio-behavioral characteristics were determined.</p> <p>Results</p> <p>Physical discomfort and sleep disturbances peaked at T1 for both groups. Exercise levels and overall socio-sexual interest did not change across the menstrual cycle for both groups combined. However, slight mid-cycle increases in general and physical attraction were noted among the control group, whereas the OC group experienced significantly greater socio-sexual interest across all phases compared to the control group. Associations with hormones differed by group and cycle phase. The estrogens were correlated with socio-sexual and physical variables at T1 and T3 in the control group; whereas progesterone, cortisol, and DHEAS were more closely associated with these variables in the OC group across test times. The direction of influence further varies by behavior, group, and time point. Among naturally cycling women, higher concentrations of estradiol and estriol are associated with lower attraction scores at T1 but higher scores at T3. Among OC users, DHEAS and progesterone exhibit opposing relationships with attraction scores at T1 and invert at T3.</p> <p>Conclusions</p> <p>Data from this study show no change across the cycle in socio-sexual interest among healthy, reproductive age women but higher social and physical attraction among OC users. Furthermore, a broader range of hormones may be associated with attraction than previously thought. Such relationships differ by use of oral contraceptives, and may either reflect endogenous hormone modulation by OCs and/or self-selection of sexually active women to practice contraceptive techniques.</p

    Beginning teacher agency in the enactment of fundamental British values: A multi-method case study.

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    There has been significant discussion and debate about the meaning and implementation of the requirement for schools to promote fundamental British values. While much of the research in this area focuses on surveying teachers’ attitudes, this paper set out to understand the processes of professional enactment through which beginning teachers interpret the policy agenda across sites and contexts in initial teacher education. A multi-method case study was undertaken at a large provider of initial teacher education in the North of England, following beginning teachers on project placement in primary schools. Theorising awareness and agency as axes of professional formation, the paper identifies three key thematic foci: community partnership, the treatment of inclusiveness and diversity and the professional understanding, interpretation and performance of value language. Context shapes enactment of each theme, with reflective space for criticality required if beginning teachers are to develop professional agency with regard to their role as values educators. This is a feature of the culture of placement schools, and while university-based teaching can ameliorate the effects of unreflective compliance, it cannot provide a replacement for professional acculturation. The paper explores the implications of reflection on enactment for the professional acculturation of beginning teachers, making recommendations for teacher education
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