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101.
Susan M Hinck Patricia Webb Susan Sims-Giddens Caroline Helton Kathryn L Hope Rose Utley Deborah Savinske Elizabeth M Fahey Sue Yarbrough 《Journal of Professional Nursing》2006,22(1):23-29
Concept mapping, a learning strategy used to understand key concepts and relationships between concepts, has been suggested as a method to plan and evaluate nursing care. The purpose of this study was to empirically test the effectiveness of concept mapping for student learning and the students' satisfaction with the strategy. A quasi-experimental pre- and posttest design was used to examine the content of concept maps of care plans constructed by junior-level baccalaureate students (n = 23) at the beginning and end of a community-based mental health course. Additionally, students completed a questionnaire to self-evaluate their learning and report their satisfaction with concept mapping. Findings indicated that concept mapping significantly improved students' abilities to see patterns and relationships to plan and evaluate nursing care, and most students (21/23) expressed satisfaction in using the strategy. This study supported concept mapping as an additional learning strategy and has extended knowledge in community-based nursing education. 相似文献
102.
103.
Green AL Helton WS 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》2011,215(3-4):307-313
High-angle climbing is a physically and cognitively challenging activity. Whilst researchers have examined the physiological demands of climbing, the cognitive demands have been relatively neglected. In this experiment, we examined the performance of climbers when required to perform a dual climbing and word memory task, relative to single-task performance (word memory or climbing alone). Whilst there was no significant decrease in climbing distance during the dual-task condition, climbing efficiency was impaired, as was word recall. Participants' Energetic Arousal, Tense Arousal and Task-unrelated Thoughts (TUTs) all changed dependent on the condition, with arousal increasing after the climbing conditions, and TUTs decreasing after the memory-load conditions. These results could be expanded on in future research to examine the physical and cognitive demands of high-angle climbing in greater detail. 相似文献
104.
Helton WS Russell PN 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》2011,212(3):429-437
In this study, we examined the impact of concurrent verbal and spatial working memory demands on performance on an alpha-numeric
successive target detection task. Seven hundred and forty-five participants performed a target detection task while simultaneously
performing either a spatial or a verbal working memory task or they performed matched no-memory control tasks. The vigilance
decrement, both an increase in target detection response times and a decrease in perceptual sensitivity A′ to target stimuli over time, was exacerbated by concurrent working memory load. The spatial and verbal working memory loads
both impacted vigilance performance suggesting utilization of common executive resources. Overall, these results support the
view that the vigilance decrement results from high cognitive resource demands (e.g., hard work), not from cognitive under-load
(e.g., boredom or mindlessness). 相似文献
105.
SR Kulkarni MS Gohel RA Bulbulia MR Whyman KR Poskitt 《Annals of the Royal College of Surgeons of England》2009,91(3):210-213
INTRODUCTION
Early carotid endarterectomy (CEA) in symptomatic patients may prevent repeat cerebral events. This study investigates the relationship between waiting time for CEA and the incidence of repeat cerebral events prior to surgery in symptomatic patients.PATIENTS AND METHODS
A prospective database of consecutive patients undergoing CEA between January 2002 and December 2006 was reviewed. Repeat event rates prior to surgery were calculated using Kaplan–Meier analysis and predictive factors identified using Cox regression analysis.RESULTS
A total of 118 patients underwent CEA for non-disabling stroke, TIA and amaurosis fugax. Repeat cerebral events occurred in 34 of 118 (29%) patients at a median 51 days (range, 2–360 days) after the first event. The estimated risk of repeat events was 2% at 7 days and 9% at 1 month after first event (Kaplan–Meier survival analysis). Age (HR 1.059; 95% CI 1.014–1.106; P = 0.009] was identified as a predictor of repeat events. Patients underwent surgery at median 97 days (range, 7–621 days) after the first event. Eleven of 60 (18%) patients waiting ≤?97 days for surgery and 23 of 58 (40%) patients waiting >?97 days had repeat events. (P = 0.011, chi-squared test).CONCLUSIONS
Delays in surgery should be reduced in order to minimise repeat cerebral events in patients with symptomatic carotid stenosis, particularly in the elderly population. 相似文献106.
Patricia K. Duffner Michele Caggana Joseph J. Orsini David A. Wenger Marc C. Patterson Carl J. Crosley Joanne Kurtzberg Georgianne L. Arnold Maria L. Escolar Darius J. Adams Mary R. Andriola Alan M. Aron Emma Ciafaloni Alexandra Djukic Richard W. Erbe Patricia Galvin-Parton Laura E. Helton Edwin H. Kolodny Barry E. Kosofsky David F. Kronn Melissa P. Wasserstein 《Pediatric neurology》2009,40(4):245-252
107.
Background
Hepatitis B virus (HBV) infection is an important occupational risk in health care workers (HCW). In spite of HBV vaccine availability in Armed Forces, the high prevalence of HBV infection in HCW continues to be a problem. The study was undertaken to study the HBV vaccine-compliance among HCW.Methods
A cross-sectional study was conducted at a tertiary care hospital. HCW were requested to fill up the pre set questionnaire to assess the HBV vaccination coverage.Result
Amongst 254 HCW, only 57.7% were vaccinated against HBV. The vaccine compliance was lowest among housekeeping professionals. The mean age at vaccination was high (30.5 years). Amongst the vaccine non-compliant subjects, 34.3% were above 30 years of age. 32.2% HCW completed primary vaccination after spending more than 10 years in the profession. Accessibility of HBV vaccine, knowledge and perception of HBV risk were important factors in vaccine non-compliance.Conclusion
Due to low and delayed HBV vaccine-compliance, HCW continue to be at the risk of occupational HBV. Health education highlighting occupational risk of HBV, accessibility of vaccine and mandatory vaccination of HCW is recommended to increase HBV vaccine compliance among HCW.Key Words: Health care workers, Hepatitis B virus, Occupational risk, Hepatitis B vaccine 相似文献108.
Background: Management of patients with cleft lip and palate (CLP) includes orthodontic treatment prior to bone grafting. Palatal expansion is done using slow or rapid palatal expansions (RPE). Controversy still exists regarding choice of expansion appliances used. This study was conducted to find out whether the Quad helix appliance represents a reasonable alternative to using conventional rapid maxillary expansion appliance among cleft lip and palate patients. 相似文献
109.