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51.
Recent research on manipulating the speed of light has established the possibility of bringing down the speed of light to a value that can be challenged by a humble bullock cart. The processes that influence the speed of light in natural and artificial materials have been investigated in depth, leading to the design of specific techniques to slow down and even store light in appropriate medium at room temperature. We introduce here the basic science of slow-light propagation in materials and artificial structures such as photonic crystals and highlight the important milestones in research on this fascinating frontier. 相似文献
52.
Anita Keskinen Timo Spangar 《International Journal for Educational and Vocational Guidance》2013,13(3):233-245
“Stop and Go” (SG) is a group counselling concept developed for employees in transition. The SG approach has its main roots in relational psychology. This article explores the ecology and the dynamics of the SG process including the simultaneous presence of societal and social (‘meso’) factors, as well as the individual assessment of the group counselling process as a restructuring of the social level. The SG dynamics create a mediating dialogical space, based on peer dialogue, of connecting, affording participants the opportunity to relate differently to the world of work. 相似文献
53.
Peter J. Hay Craig Engstrom Anita Green Peter Friis Sue Dickens Doune Macdonald 《Assessment & Evaluation in Higher Education》2013,38(5):520-535
This paper presents evaluation outcomes from an externally funded research project involving the online clinical assessment of practical skills (eCAPS) using web-based video technologies within a university medical programme. eCAPS was implemented to trial this web-based approach for promoting the efficacy of practical skills assessment in knee joint examinations for a pre-clinical cohort of second year medical students. eCAPS involves a progressive organisation of online video experiences and task expectations for formative and summative assessments of selected competencies. Data are presented from semi-structured interviews with the medical students (N?=?40). eCAPS successfully supported students’ skill development in knee joint examinations on fellow students and allowed remote assessment of candidates’ performances by clinicians experienced in musculoskeletal examinations. An ‘indicative standard’ paradigm, involving formative assessment of one randomly selected performance from the submission of all students’ responses within a small group, offered an efficient and efficacious avenue for providing consolidated feedback to students and promoted desirable learning behaviours. Overall, there was evidence of reciprocal learning benefits to the ‘blending’ of an online learning and assessment approach with an existing face-to-face environment. The medical students were able to successfully engage online with high quality and consistent practical skill-based materials in a flexible, independent and individual manner. 相似文献
54.
Sandra L. Bradley Anita De Bellis Pauline Guerin Bonnie Walters Alison Wotherspoon Maggie Cecchin 《Educational gerontology》2013,39(9):809-823
Healthcare practitioners have suggested that interpreting person-centered care for people who have dementia to undergraduate students requires guidance in practical application. This article describes the production of a written and digital interdisciplinary educational resource for tertiary students. It uses real-life case scenarios provided by healthcare practitioners to illustrate person-centered care in practice with people who have dementia. The resource provides students with the theoretical underpinning of person-centered care and dementia as well as reflective questions that relate to the reenacted case scenarios to guide their application of this theory in practice. 相似文献
55.
Supriya Gupta Sarika Arora S. S. Trivedi Ritu Singh 《Indian journal of clinical biochemistry : IJCB》2009,24(2):150-154
Neural tube defects are congenital structural abnormalities of the brain and vertebral column resulting from improper or non-timely
closure of the neural tube. Prevalence of neural tube defects is reported to be higher among women with diabetes mellitus
and obesity. This study was designed to investigate the relation between the presence of dyslipidemia in antenatal patients
and the risk of fetal neural tube defects. The present study was an observational, cross-sectional study involving 129 pregnant
women in 16 to 18 weeks gestation period. Of these, 80 women had normal pregnancies and 49 were clinically high-risk cases
for neural tube defects. Fasting blood samples were analyzed for blood sugar and lipid profile by enzymatic assay and alpha-fetoprotein
levels using Enzyme Immunoassay. Alpha-fetoprotein (AFP) values were converted to Multiples of Median (MoM) appropriate for
the gestational age. Based on AFP values, women were labeled as screen negative (AFP <2 MoM, n= 102) and screen positive (AFP
> 2 MoM, n =27). Screen positive women were further evaluated by ultrasound and 21 women were found to carry a neural tube
defects positive pregnancy. Statistical analysis was done on SPSS software. Body weight of the women showed a significant
positive correlation with serum triglycerides, plasma sugar and AFP MoM values. A significant difference was observed in serum
cholesterol levels (p= 0.038), triglycerides (p=0.001) and plasma sugar levels (p=0.002) between normal women and those with
neural tube defects positive pregnancy. The Odds ratio for neural tube defects risk in dyslipidemic cases was 24.23 (CI 4.73
− 148.60) with a relative risk of 12.12. Dyslipidemia especially hypertriglyceridemia was found to be significantly associated
with fetal neural tube defects. 相似文献
56.
57.
Lisa Hjelmfors Madeleine Abrandt Dahlgren Anita Kärner Pia Tingström 《Studies in Continuing Education》2014,36(2):218-232
Several studies show that how patients have difficulties in changing lifestyle even though such changes are essential because they are suffering from a life-threatening disease. Coronary artery disease (CAD) patients met 13 times during a year and used problem-based learning (PBL) to improve their empowerment and self-efficacy in making lifestyle changes. District nurses functioned as tutors, helping patients to formulate issues and to state self-care goals. To identify and describe the enactment of PBL, an ethnographic approach was used, including, for example, participant observations and interviews, all derived from six sessions of the education programme. Five different enactments were found, metaphorically expressed as: ‘The study circle’, ‘The classroom’, ‘The expert consultation’, ‘The therapy session’ and ‘The coffee party’. The education programme did not always function as it was supposed to according to the model, but perhaps this should not be seen as a failure of the pedagogical intervention since these enactments as a whole seem to be a way for the patients to be able to make healthy lifestyle changes. The metaphors can broaden the understanding of what can happen when implementing problem-based learning in health care practice. 相似文献
58.
Timo T. E. Vähämöttönen P. Anita Keskinen Rauno K. Parrila 《International journal for the advancement of counseling》1994,17(1):19-34
The present paper develops a conceptual framework for an activity-based approach to career counselling. The main objective of this approach is to combine clients' practical activity, such as visits to educational institutions, work practices etc., with their psychological processes leading to occupational choice. Some basic ideas that are relevant to developing an activity-based approach to counselling in postmodern work life and some recent changes in work life itself and in the individuals' relation to work are discussed. These include plasticity, which emphasizes the individuals' capability and activeness in shaping both their working environment and themselves; the nonnormative nature of the developmental tasks that postmodern work life sets for the individual; the openness and nonlinear nature of the counselling process and the implications of this on the role of the counsellor; and the usefulness of conceptualizing the counselling process as a metaphorical reality. Also, some preliminary findings from a research project aimed at developing a counselling process model which is congruent with activity-based approach are presented. The implications of these findings on the framework are also discussed. 相似文献
59.
Anita Devi Ritu Singh Rajni Dawar Sanjay Tyagi 《Indian journal of clinical biochemistry : IJCB》2017,32(2):235-238
Association of cholesteryl ester transfer protein (CETP) Gene -629C/A Polymorphism with angiographically proven atherosclerosis CETP gene has been linked to CAD risk via its role in HDL and LDL metabolism. There is no agreement of whether CETP is atherogenic or not. Furthermore, various genotypes of CETP gene have been associated with CETP levels and thus with atherosclerosis risk. Our aim was to study the association of CETP -629C/A gene polymorphism with CETP and HDL levels and their association if any with atherosclerosis. Study population consisted of angiographically documented 50 cases with coronary artery atherosclerosis and 50 controls negative for atherosclerosis of coronary artery. Serum lipid profile was measured on SYNCHRON CX-9 using standard kits. Serum CETP levels were measured by ELISA method. CETP -629C/A gene polymorphism was studied using PCR–RFLP method. There was no significant difference in lipid profile of the two groups. However, serum CETP level was significantly higher (46.44 ± 21.75 ng/ml) in cases than controls (37.10 ± 21.92 ng/ml) with p value =0.035. The frequency of -629A allele was higher (0.85) in cases than that of controls (0.81). Homozygosity of A allele was more in subjects with atherosclerosis of coronary artery. We conclude that CETP is atherogenic and could be used as atherogenic risk predictor in angiographically proven atherosclerosis. Also A allele of -629C/A polymorphism is more prevalent in cases; indicating its effect on expression of CETP gene. 相似文献
60.