917 resultados para field of solenoid
Resumo:
- Purpose of the study Hearing impairment (HI) is associated with driving safety (e.g., increased crashes and poor on-road driving performance). However, little is known about HI and driving mobility. This study examined the longitudinal association of audiometric hearing with older adults’ driving mobility over three years. - Design and Methods Secondary data analyses were conducted of 500 individuals (63-90 years) from the Staying Keen in Later Life (SKILL) study. Hearing (pure tone average of 0.5, 1, and 2 kHz) was assessed in the better hearing ear and categorized into normal hearing <25 dB HL; mild HI 26-40 dB HL; or moderate and greater HI>41 dB HL. The Useful Field of View Test (UFOV) was used to estimate the risk for adverse driving events. MANCOVA compared driving mobility between HI levels across time, adjusting for age, sex, race, hypertension, and stroke. Adjusting for these same covariates, Cox regression analyses examined incidence of driving cessation by HI across three years. - Results Individuals with moderate or greater HI performed poorly on the UFOV, indicating increased risk for adverse driving events (p<.001). No significant differences were found among older adults with varying levels of HI for driving mobility (ps>.05), including driving cessation rates (p=.38), across time. - Implications Although prior research indicates older adults with HI may be at higher risk for crashes, they may not modify driving over time. Further exploration of this issue is required to optimize efforts to improve driving safety and mobility among older adults.
Resumo:
In recent decades, there has been a strong call by writers in education for alternative forms of leadership and management that are human centred and that value social cohesion, fairness, and democratic practices. Referred to by names such as transformative leadership (Shields, 2013) and ethical leadership (Starratt, 1996), those promoting these types of leadership argue for the use of “power as a moral force for the common good” (Duignan, 2007, p.12). In this chapter, our interest lies with managers in universities and how they use power in ethical and unethical ways. We consider some macro forces (e.g., globalisation, neo-liberal policies) that have impacted universities, making it difficult for managers to promote socially just and equitable practices. In particular, we examine the influence of managerialism—the application of private sector practices to the public sector—where the role of manager is not to question current practices, but to conform to performance targets, and to ensure compliance (O’Brien & Down, 2002). To come to an understanding of what might constitute ethical practices, we refer to the field of micropolitics as a way to help illuminate current practice and point to more positive ways of working.