• 농촌의학ㆍ지역보건
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• 제47권2호
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• pp.90-98
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• 2022

연구의 목적은 지역사회 거주하고 있는 노인들의 근감소증 가능군과 영양결핍 그리고 사회심리적 요인 등과의 관련성을 파악하고자 실시되었다. 연구대상자는 농촌지역 주민 중 60세 이상인 1,019명이다. 근감소증 가능군과 관련성에 포함된 변수는 영양상태, 사회심리적 요인(낙상에 대한 두려움, 자기효능감, 사회적 고립, 사회적 자본)이다. 근감소증의 기준은 개정된 아시아 진단기준에 따라 종아리 둘레로 의심자를 찾은 다음, 악력으로 평가하였다. 연구 결과 영양은 근감소증 가능군과 관련이 있었으며 사회심리적 요인 중에서는 낙상에 대한 두려움, 자기효능감이 근감소증 가능군과 직, 간접적으로 관련이 있었으며, 사회적 자본 중 사회적 참여는 영양결핍에 직접적으로 관련이 있고, 근감소증 가능군과는 간접적으로 관련이 있었다. 결론적으로 근감소증 가능군과 관련 있는 요인으로 영양결핍과 낙상에 대한 두려움 그리고 자기효능감 저하 등이 있고 영양결핍에 사회적 참여도 관련이 있어 지역사회의 근감소증 대상 보건사업에서는 이들 변수를 고려하여 실시되어야 한다.

• 한국콘텐츠학회논문지
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• 제15권2호
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• pp.333-343
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• 2015

본 연구는 요양병원 간병사의 낙상예방인지도에 미치는 영향요인을 파악하기 위한 서술적 조사연구이다. 자료수집기간은 2014년 7월 1일부터 8월 31일까지였다. D광역시와 N시에 소재하는 7개 요양병원의 간병사를 대상으로 편의 표집 하였다. 수집된 자료 215부 중 200부를 분석에 이용하였다. 연구결과 첫째, 요양병원 간병사의 학력, 요양보호사 자격증 유무, 근무경력과 낙상관련 교육시간에 따른 낙상예방인지도에서 유의한 차이가 있었다. 둘째, 낙상예방건강신념 중 지각된유익성, 지각된장애성, 지각된민감성과 낙상예방효능감은 낙상예방인지도와 유의한 양의 상관관계가 있었다. 셋째, 요양병원 간병사에게 영향을 주는 개인적 특성을 통제한 상태에서 위계적 회귀분석한 결과, 정적영향요인은 지각된유익성, 낙상예방효능감, 지각된민감성, 부적영향요인은 근무경력으로 나타났으며, 이들 변수의 낙상예상인지도에 대한 설명력은 31.7%였다. 이러한 결과로 요양병원 간병사의 낙상예방인지도를 증가시키기 위해 간병사의 근무경력에 따른 낙상예방효능감과 건강신념 중 지각된 유익성과 지각된 민감성을 높일 수 있는 프로그램을 적극 모색해야할 것이다.

• 경영과정보연구
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• 제22권
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• pp.137-165
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• 2007

It seems high time to increase productivity by adopting e-business to overcome challenges posed by both external factors including the appreciation of Korean won, oil hikes and fierce global competition and domestic issues represented by disparities between large corporations and small and medium enterprises (SMEs), Seoul metropolitan and local cities, and export and domestic demand all of which weaken future growth engines in the Korean economy. The demands of the globalization era are for innovative changes in businessprocess and industrial structure aiming for creating new values. To this end, e-business is expected to play a core role in the sophistication of the Korean economy through new values and innovation. In order to examine business performance in e-business-adopting industries, this study analyzed the home shopping industry by closely looking into the financial ratios including the ratio of net profit to sales, the ratio of operation income to sales, the ratio of gross cost to sales cost, the ratio of gross cost to selling, general and administrative (SG&A) expense, and return of investment (ROI). This study, for best outcome, referred to corporate financial statements as a main resource to calculate financial ratios by utilizing Data Analysis, Retrieval and Transfer System (DART) of the Financial Supervisory Service, one of the Korea's financial supervisory authorities. First of all, the result of the trend analysis on the ratio of net profit to sales is as following. CJ Home Shopping has registered a remarkable increase in its ratio of net profit rate to sales since 2002 while its competitors find it hard to catch up with CJ's stunning performances. This is partly due to the efficient management compared to CJ's value of capital. Such significance, if the current trend continues, will make the front-runner assume the largest market share. On the other hand, GS Home Shopping, despite its best organized system and largest value of capital among others, lacks efficiency in management. Second of all, the result of the trend analysis on the ratio of operation income to sales is as following. Both CJ Home Shopping and GS Home Shopping have, until 2004, recorded similar growth trend. However, while CJ Home Shopping's operating income continued to increase in 2005, GS Home Shopping observed its operating income declining which resulted in the increasing income gap with CJ Home Shopping. While CJ Home Shopping with the largest market share in home shopping industryis engaged in aggressive marketing, GS Home Shopping due to its stability-driven management strategies falls behind CJ again in the ratio of operation income to sales in spite of its favorable management environment including its large capital. Companies in the Group B were established in the same year of 2001. NS Home Shopping was the first in the Group B to shift its loss to profit. Woori Home Shopping has continued to post operating loss for three consecutive years and finally was sold to Lotte Group in 2007, but since then, has registered a continuing increase in net income on sales. Third of all, the result of the trend analysis on the ratio of gross cost to sales cost is as following. Since home shopping falls into sales business, its cost of sales is much lower than that of other types of business such as manufacturing industry. Since 2002 in gross costs including cost of sales, SG&A expense, and non-operating expense, cost of sales turned out to have remarkably decreased. Group B has also posted a notable decline in the same sector since 2002. Fourth of all, the result of the trend analysis on the ratio of gross cost to SG&A expense is as following. Due to its unique characteristics, the home shopping industry usually posts ahigh ratio of SG&A expense. However, more than 80% of SG&A expense means the result of lax management and at the same time, a sharp lower net income on sales than other industries. Last but not least, the result of the trend analysis on ROI is as following. As for CJ Home Shopping, the curve of ROI looks similar to that of its investment on fixed assets. As it turned out, the company's ratio of fixed assets to operating income skyrocketed in 2004 and 2005. As far as GS Home Shopping is concerned, its fixed assets are not as much as that of CJ Home Shopping. Consequently, competition in the home shopping industry, at the moment, is among CJ, GS, Hyundai, NS and Woori Home Shoppings, and all of them need to more thoroughly manage their costs. In order for the late-comers of Group B and other home shopping companies to advance further, the current lax management should be reformed particularly on their SG&A expense sector. Provided that the total sales volume in the Internet shopping sector is projected to grow over 20 trillion won by the year 2010, it is concluded that all the participants in the home shopping industry should put strategies on efficient management on costs and expenses as their top priority rather than increase revenues, if they hope to grow even further after 2007.

• 한국측량학회지
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• 제33권5호
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• pp.343-351
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• 2015

차량 항법장치에서 활용하고 있는 GNSS는 차분기법을 이용하더라도 수 미터 수준의 측위 정밀도를 확보할 수 있으므로, 길안내 수준의 위치기반서비스만 가능하다. 반면 정밀 측지/측량분야에서는 민간용 코드 대신 반송파 위상정보를 이용하여 센티미터에서 밀리미터까지의 위치 정확도를 확보할 수 있다. 본 연구에서는 국토교통부 국토지리정보원의 NRTK(Network-RTK) 서비스를 차량항법에 적용하기 위한 기반연구를 수행하였다. 이를 위해, 차량에 GNSS 장비를 탑재하고 전국범위에서 NRTK를 수행하였으며, 그 결과를 바탕으로 NRTK의 차량항법 적용가능 여부를 판단하고자 하였다. 본 연구의 분석결과, NRTK는 대체적으로 높은 모호정수 결정율을 보이며, 지상 차량항법에 충분히 적용할 수 있을 것으로 판단된다. 다만, 도심지에서는 모호정수 결정율이 급격히 낮아지며, 실수해일 경우에는 측위 오차가 10m 이상의 수준에 달할 정도로 불안정할 수 있다. 따라서 안정적인 위치정확도를 확보하기 위해서는 실수해의 오차영향을 최소화할 수 있는 방안 등이 모색되어야 할 것으로 사료된다. 그러나 수신환경이 양호한 일부 도심지에서는 NRTK를 활용하여 센티미터 수준의 측위 정확도를 확보할 수 있을 것으로 판단된다. FKP는 고속 주행 시 모호정수 결정율이 약 55%까지 낮아지는 경우가 발생하였으므로 여러 수신환경을 고려하여 측위 정확도를 결정하여야 한다. 마지막으로 대기교란(2단계 이상)에 의해 NRTK(FKP) 접속오류로 의심되는 사례가 발생하였으며, 이에 대한 정확한 원인규명이 필요하다.

• 한국환경보건학회지
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• 제46권4호
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• pp.376-387
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• 2020

Objectives: This study is aimed at offering basic data for making plans for offensive odor management after researching offensive odor occurrence and characteristics in Gangwon Province. Methods: The data used in the study is based on offensive odor data analyzed by the Gangwon Institute of Health and Environment from 2012 to 2019. The data were reclassified by year, month, facility, and region to identify characteristics of occurrence. Finally, a distribution map of offensive odors was created using ArcGIS. Results: The highest monthly frequency of offensive odor occurrence falls in June, August, and July, and the summer season and third quarter are the highest. According to the latest eight-year data for Gangwon Province, complaints about offensive odors in county areas are more frequent than those in city areas. There are many offensive odor complaints in Wonju, Cheorwon, and Heongsung. The main offensive odor emission facilities are livestock and waste treatment (recycling) facilities. Complaints about offensive odors are relatively lower the Yeongdong area than Yeongseo area, which is considered to be the result of characteristics of land-sea breezes and geographical factors. Offensive odors from livestock facilities count for an average of 53.9% of the total, and the inadequacy rate of livestock facilities averages 36.9%. Conclusions: To maintain a clean environment in Gangwon Province, it is strongly recommended that an offensive odor reduction plan for livestock facilities be established. Areas with a high density of offensive odor occurrence should be identified and systematically managed with short- and mid-term measures. If offensive odors is managed using GIS, it is possible to identify the characteristics of occurrence by time and space and also by facility. In addition, since systematic data management is possible, it is believed that a rapid response to offensive odors, prediction of their spread, and efficient management are possible.

• Annals of Geriatric Medicine and Research
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• 제22권4호
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• pp.167-175
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• 2018

Sarcopenia, a common clinical syndrome in older adults, is defined as decreased muscle mass, strength, and physical performance. Since sarcopenia is associated with the incidence of functional decline, falls, and even mortality in older adults, researchers and health care providers have been keen to accumulate clinical evidence to advocate the screening and prevention of sarcopenia progression in older adults. The factors that may accelerate the loss of muscle mass and function include chronic diseases, inactivity, and deficiency in appropriate nutritional support. Among these, nutritional support is considered an initial step to delay the progression of muscle wasting and improve physical performance in community-dwelling older adults. However, a nationwide study suggested that most Korean older adults do not consume sufficient dietary protein to maintain their muscle mass. Furthermore, considering age-associated anabolic resistance to dietary protein, higher protein intake should be emphasized in older adults than in younger people. To develop a dietary protein recommendation for older adults in Korea, we reviewed the relevant literature, including interventional studies from Korea. From these, we recommend that older adults consume at least 1.2 g of protein per kg of body weight per day (g/kg/day) to delay the progression of muscle wasting. The amount we recommend (1.2 g/kg/day) is 31.4% higher than the previously suggested recommended daily allowance (i.e., 0.91 g/kg/day) for the general population of Korea. Also, evidence to date suggests that the combination of exercise and nutritional support may enhance the beneficial effects of protein intake in older adults in Korea. We found that the current studies are insufficient to build population-based guidelines for older adults, and we call for further researches in Korea.

• 한국환경보건학회지
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• 제48권1호
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• pp.1-8
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• 2022

Objectives: The purpose of this study is to reveal the circumstances under which the cases of harm to health caused by humidifier disinfectant were neglected and show the points where the number of victims and the degree of damage could have been reduced. In addition, it attempts to describe how damage management proceeded immediately after the incident and actually exacerbated the damage. Finally, it explores the unfortunate aspects of the recent trial. By doing so, it attempts to take this as an opportunity to consider whether a tragic event such as the humidifier disinfectant incident could occur in the future. Methods: This study collected and analyzed data on chemical material characteristics related to humidifier disinfectants, data on health effect characteristics, data on related laws and regulations from the Ministry of Environment, data related to the damage investigation by the Korea Environmental Industry and Technology Institute, and current contents. Results: The lack of related systems and laws is the area where the greatest responsibility for the cause of the humidifier disinfectant disaster falls, so it is difficult for the government to escape this responsibility. Establishing a dedicated department to identify the prevalence of certain diseases within the functions of the Health Insurance Review and Assessment Service to monitor health can greatly contribute to the prevention and management of diseases through early detection and management of group outbreaks caused by harmful factors. Humidifier disinfectant damage relief should have been expanded earlier beyond HDLI (humidifier disinfectant lung injury) to include non-specific diseases such as asthma, pneumonia, and interstitial pneumonia. The scope of relief benefits should have also been expanded earlier to include the payment of disability benefits. Fortunately, with the 2020 revision of the Special Act, the conditions for estimating causal relations were eased and individual screening systems such as health impact assessment were reorganized along with the introduction of a rapid screening system. Conclusions: The management system for chemical substances in a country is clearly of paramount importance, and the ministry in charge must have a response system in case of damage to health effects. Administration that looks at the victims' situation from their point of view is needed, and technical countermeasures are required to quickly recognize the prevalence of certain diseases.

• 한국전문물리치료학회지
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• 제25권2호
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• pp.22-29
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• 2018

Background: Deficits of both ankle dorsiflexion range of motion (DFROM) and dynamic balance are shown in persons with chronic ankle instability and the elderly, with the risk of falls. Objects: This study aims to investigate the relationship between DFROM and dynamic balance in elderly subjects and young adults. Methods: Fifty-nine subjects were divided into three groups: ankle stability young group (SY), ankle instability young group (IY) and ankle stability older group (SO). We recruited three old subjects with ankle instability, but excluded them during a pilot testing due to the safety issue. DFROM was measured by weight bearing lunge test (WBLT) and dynamic balance was measured via star excursion balance test (SEBT) in anteromedial, medial, and posteromedial directions. The group differences in WBLT and SEBT and each group's correlation between WBLT and SEBT were detected using the R statistical software package. Results: The dorsiflexion range of motion was significantly different between the SY, IY, and SO groups. The SO group showed the highest DFROM and IY group showed the lowest DFROM (SY: $45.88{\pm}.66^{\circ}$, IY: $39.53{\pm}1.63^{\circ}$, SO: $47.94{\pm}.50^{\circ}$; p<.001). However, the SO group showed the lowest dynamic balance score for all SEBT directions (SY: $87.24{\pm}2.05cm$, IY: $83.20{\pm}1.30cm$, SO: $77.23{\pm}2.07cm$; p<.05) and there was no relationship between the dorsiflexion range of motion and dynamic balance in any group. Conclusion: Our findings suggest that ankle DFROM is not a crucial factor for dynamic stability regardless of aging and ankle instability. Other factors such as muscle strength or movement coordination should be considered for training dynamic balance. Therefore, we need to establish the rehabilitation process by measuring and treating ROM, balance, and muscle strength when treating young adults with and without ankle instability as well as elderly people.

• 대한의용생체공학회:의공학회지
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• 제29권4호
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• pp.316-322
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• 2008

The purpose of this study was to investigate muscle activation of lower extremity such as rectus femoris, tibialis anterior and soleus according to 0cm(bare foot), 4cm and 7cm heel height of shoe on the rocking surface in older women. 20 older women who did not have any lower musculoskeletal and neurological disorders in the past were participated in this study. Each subject was standing for 15 seconds on the level 8 of Biodex Stability System (BSS) while wearing 4cm and 7cm heel height shoes including bare foot. Electromyography was used to measure muscle activation of lower extremity, and the muscle activation was expressed as a percentage of maximal voluntary isometric contraction (% MVIC). We measured % MVIC of three muscles during 5 seconds except for the first 5 seconds and last 5 seconds. SPSS 12.0 program was used for this study. Repeated one-way analysis of variance(ANOVA) was performed to compare the significant difference among the muscles of lower extremities according to heel heights of shoe on the rocking plate. % MVIC of each muscle such as rectus femoris, tibialis anterior and soleus regarding heel heights of shoe had statistically significant differences (p<0.05). The results of contrast test were as follows; 1) % MVIC of rectus femoris had significant differences between barefoot and 4cm, and barefoot and 7cm. 2) % MVIC of tibialis anterior had significant differences between barefoot and 4cm, barefoot and 7cm, and 4cm and 7cm. 3) % MVIC of soleus had significant differences between barefoot and 7cm, 4cm and 7cm. The results indicate that all commonly responsive muscle on the conditions of barefoot, 4cm, and 7cm shoe height on the rcoking surface is tibialis anterior muscle. We found out that the more heels of shoe high, the more muscle activation increases. High-heeled shoes above 7cm remarkably increase the muscle activation of lower extremity and may result in muscle fatigue. Thus, these shoes may summate risk factors of falls in older women. We can acknowledge that the heels above 4 cm affect each muscle activation in lower extremity on the rocking surface.

• 벤처창업연구
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• 제12권6호
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• pp.1-12
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• 2017

본 연구는 창업기업을 대상으로 QFD(Quality Function Deployment) 교육 훈련 프로그램의 훈련 성과에 관하여 연구하였다. 창업기업은 3년 이상의 기업을 대상으로 하여 QFD 교육 훈련 프로그램을 통해 창업기업들의 훈련 참가자들이 학습 전이 의도 즉 학습후 적용하고자하는 동기 부여 효과에 대해 연구하고자 하였다. 본 프로그램의 의도는 3년 이상 창업 기업들이 본 훈련 과정을 통해 현재의 매출액을 5배 이상의 성과를 달성할 수 있도록 훈련하고자 하였다. 이를 통해 기업들에게 실질적으로 사업성과에 도움이 되는 교육 훈련 프로그램을 기획 및 보급하는 것을 목적으로 하였다. 본 연구를 위해 독립변수로는 학습자 준비상태, 훈련내용 타당성인지로 하였고, 매개변수로 학습자의 자기효능감, 종속변수로는 학습 전이의도를 설정하였다. 실증분석 결과 학습자 준비상태는 학습 전이 의도에 직접적으로는 영향을 미치지 않는 것으로 통계적으로 유의하게 나타났으나, 자기효능감을 매개변수로 하여 완전한 매개 효과가 발생하는 것으로 나타났다. 훈련내용 타당성 인지는 학습 전이 의도에 직접효과와 함께 자기효능감을 매개변수로 부분 매개 효과가 발생하는 것으로 검증되었다. 본 연구의 시사점은 현실에 접목하기 쉽게 실천중심으로 설계된 훈련 프로그램은 학습자의 준비 상태에 관계없이 학습자에게 자기효능감을 높이고 이를 통해 학습 전이 의도를 높이는 것으로 나타났다. 아울러 본 연구의 실험 대상 프로그램이 KS-QFD 프로그램이 창업기업들에게 매우 실용적이고도 도움이 되는 프로그램임을 입증한다고 볼 수 있다.