• 보건세계
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• v.45 no.4 s.500
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• pp.8-11
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• 1998

집단내의 결핵분포상태와 시간의 경과에 따른 변화를 파악하고 이에 관여하는 요인들을 분석하며 집단내 결핵의 미래를 예측하는 것이 역학의 입장이다.

• The Journal of the Korea Contents Association
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• v.19 no.12
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• pp.270-278
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• 2019

This study was performed to compare the aerodynamic characteristics of young and elderly adult male patients with voice disorders during continuous speech. Aerodynamic measurements were obtained after 12 young male patients and 9 elderly male patients read a paragraph. The elderly group showed longer duration, lower airflow rate and air volume than the younger group, but the differences were not significant except phonation time. So, when interpreting the meaning of aerodynamic measures of elderly voice disorder patients in the aspects of airflow and air volume, it should take into account various conditions(e. g. reading materials, pulmonary functions) as well as age.

• Korean Journal of Psychosomatic Medicine
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• v.16 no.2
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• pp.81-86
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• 2008

Delirium is not developed naturally and is not an endogenous disease. However, delirium has occurred in some specific populations, such as the elderly or medically compromised patients. These become limitations on the systematic study of the epidemiology of delirium. Many epidemiologic studies of delirium have been focused on the elderly due to the fact there are relatively few in the general population. In addition, assessment tools with various sensitivity and specificity have been used. Advanced age, male, poorer cognitive and functional status, and alcohol abuse are well known risk factors of delirium. the epidemiological data will be reviewed in the elderly, patients with dementia, hip fractures, patients hospitalized in intensive care units, terminal cancer and patients with stroke.

• 한국체육학회지인문사회과학편
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• v.55 no.2
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• pp.643-655
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• 2016

The purpose of this study was to investigate biomechanical differences between young and old adults during downhill walking on a treadmill in order to understand the mechanisms of elderly falls. Eighteen healthy young females(YG: yrs: 21.17±1.5) and eighteen healthy old females(OG: yrs: 66.67±1.33) participated in this study. They were asked to walk at their preferred speed on a treadmill at level, 7.5° and 15° decline. OG walked more wobbly in the medial and lateral directions than YG(p<.05). As slope got steeper, OG had smaller ROM(range of motion) of ankle and knee joints compared with YG. However, there was no difference in ROM of the hip between OG and YG, but maximum extension angle of OG was smaller compared with YG(p<.05). Smaller extensor moment was generated on OG during downhill walking(p<.05). It was hypothesized that more risk factors would be found on older people compared to young people during downhill. However, older people actually walks with a safer strategy compared to young people during downhill. Finally, current findings about biomechanical characteristics of elderly walking would provide useful fundamental information for a follow-up study regarding the prevention of elderly fall during their daily life.

• Journal of the military operations research society of Korea
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• v.7 no.1
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• pp.139-150
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• 1981

• 월간산업보건
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• s.261
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• pp.21-27
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• 2010

• Journal for History of Mathematics
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• v.26 no.2_3
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• pp.197-210
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• 2013

The late 18C Malthus studied population growth for the first time, Verhulst the logistic model in 19C and, after that, the study of the predation competition between two species resulted in the appearance of Lotka-Volterra model and modified model supported by Gause's experiment with bacteria. Instable coexistence equilibrium being found, Solomon and Holling proposed functional and numerical response considering limited abilities of predator on prey, which applied to Lotka Volterra model. Nicholson and Baily, considering the predation between host and parasitoid in discrete time, made a model. In 20C there were developed various models of disease dynamics with the help of mathematics and real data and named SIS, SIR or SEIR on the basis of dynamical phenomena.

• 월간산업보건
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• s.81
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• pp.20-22
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• 1995

질병의 집단발생(Disease clusters)은 역학적인 면과 의학정보제공이라는 면에서 산업의학에 관한 중요한 자료를 제공하여 왔다. 현재 알려져 있는 질병과 유해물질 폭로간의 관련성은 이러한 집단발생을 통하여 시작된 경우가 많다. 이와 같이 새로운 원인결과 관계를 밝히는 데에 작업장의 집단발생조사(workplace cluster investigation)가 많은 장점이 있는데도 불구하고 이를 위한 방법들은 잘 소개되어있지 않다. 이 글에서는 이러한 집단발생을 조사하는 표준화된 방법론을 소개하고자 하였다.

• 대한예방의학회:학술대회논문집
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• 2001.07a
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• pp.125-168
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• 2001

• 산업보건소식
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• no.42
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• pp.26-31
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• 1987