• Perspectives in Nursing Science
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• v.12 no.1
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• pp.7-13
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• 2015

Purpose: This observational study was aimed to determine the influence of the Hawthorne effect on the adherence to hand hygiene (HH) among healthcare workers (HCWs) in South Korea. Methods: HCWs were monitored in 2 periods regarding adherence to HH when there were indications for HH. In first period, HCWs recognized that their behavior of hand hygiene being observed (overt observation), and did not recognize in second period (covert observation). Results: The overall difference in HH rate between two periods was 45.0% point (77.8% vs 32.8%). There were significant differences between profession but in nurse aids. The differences in HH rate between two periods were 46.1% point in nurses, 29.9% point in physicians, 64.0% in radiologists, 62.5% point in laboratory technicians, 36.4% point in physio-therapist, and 1.0% point in nurse aids. The Hawthorne effect on the adherence to HH lasted more than 3 months. Conclusion: The Hawthorne effect markedly influence on the adherence to HH regardless of profession except nurse aids. Therefore, Hawthorne effect can be useful tool to improve and sustain the adherence to HH among HCWs in South Korea.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.31 no.2
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• pp.72-80
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• 2023

Line Operations Safety Audit (LOSA) is a well known preventive aviation safety program for Threat and Error management (TEM). High quality LOSA data suitable for safety management is obtained when a flight crew flies at the same level of attention as ordinary flight. Factors contributing to LOSA data quality may include flight crew's understanding on LOSA purpose, observer's career, and characteristics of the organization responsible for LOSA operations. This study explored purposes of TEM and LOSA, as well as their relationship. Previous studies mentioned quality of LOSA data can be influenced by heuristic judgment, hawthorne effect, and priming effect. This study recognized the importance of LOSA data quality to be effectively used for preventive safety management. It was confirmed that the level of understanding on LOSA concept, experience of the observer, and the characteristics of the department in charge of LOSA operation could affect the quality of LOSA data.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37A no.9
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• pp.762-771
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• 2012

In this paper, we propose an adaptive power control scheme employing a self-optimization concept in femtocell systems, in order to improve system capacity, thereby reducing call-drop probability. In the proposed scheme, each femto base station(FBS) controls individual channel's transmission power base on two parameters; the neighboring cell's transmission power for each individual channel which is delivered from a femto-gateway and the received power strength from neighboring cells which is periodically measured by means of a spectrum sensing. Adaptive adjustment of individual channel's transmission power in accordance with femto mobile station(FMS) mobility features can also reduce undesirable handovers and evenly distribute traffic load over all femtocells. In addition, the manipulative control of channel's transmission power is able to keep the system coverage and the call-drop probability within an acceptable range, regardless of density of femtocells. Computer simulation shows that the proposed scheme outperforms existing schemes in terms of the system coverage and the call-drop probability.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.12
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• pp.71-79
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• 2018

The purposes of this study were to identify the stress level of nursing students prior to clinical training and to examine the effects of aromatherapy on stress, stress perception, and mood during clinical practice. This study was a randomized control trial using a pre-post test conducted from May-July 2016. A total of 41 junior nursing students were recruited. The experimental group (n=22) underwent aroma inhalation using a necklace containing lavender essential oil and a control group (n=19) used a normal saline necklace. There were significant improvements in stress (p=.023) and mood levels in the experimental group (p=.006). The difference in stress perception between the experimental and control groups was not statistically significant (p=.382). Aroma therapy might be useful for decreasing stress and improving their positive mood during clinical practice for nursing students.