당뇨병 환자에 있어서 혈장 Active Renin 및 Inactive Renin 활성도의 변동

장동석(Dong Suk Jang),김진홍(Jin Hong Kim),김원호(Won Ho Kim),백홍선(Hong Sun Baek),김선희(Sun Hee Kim),조경우(Kyung Woo Cho) 대한내과학회 1987 대한내과학회지 Vol.33 No.4

N/A Active, inactive & total renin activity were studied in the groups of l03 controls, 11 diabetids without complications and 39 diabetics with complications. Inactive renin was activated by trypsin, The results were as followins; 1) Active, inactive and total renin activity were decreased with increasing age in normal controls. 2) 1n normal control groups, active renin activity was 1.69±0.06ng/ml/hr, inactive renin activity 1.99±0.13 ng/ml/hr, total renin activity was 3.72±0.13 ng/ml/hr, inactive renin/total renin ratio was 52.19%. 3) In diabetics without complications, active renin activity was 2.68±18 ng/ml/hr. Inactive renin activity was 5.63±1.10 ng/ml/hr, tota1 renin activity was 8.31±1.22 ng/ml/hr, and then inactive renin/total renin ratio was 65.38%. Inactive renin activity in diabetics without complications was increased significantly than normal controls. 5) In diabetics with complications, active renin activity was 1.54±0.28 ng/m1/hr, inactive renin activity was 8.49±1.08 ng/ml/hr, total renin activity was 9.77±1.25 ng/ml/hr and then inactive renin/total renin ratio was 84.94%. Inactive renin activity in diabetics with complications was increased significantly than diabetics without complications.

경제한류와 문화한류가 태도 및 방문의도에 미치는 영향에 관한 연구: 미국인을 대상으로

장동석(Jang, Dong-Suk) 대한관광경영학회 2016 觀光硏究 Vol.31 No.7

이 연구는 미국에서의 경제한류와 문화한류가 우리나라에 대한 현지인들의 태도에 어떠한 영향을 미치는 지 그리고 이들 요인들이 그들의 방문의도에 어떠한 영향을 미치는 지 살펴 보고자 계획되었다. 2015년 11월 미국 현지에서 289명을 설문조사하였고 분석방법으로 구조 방정식을 사용하여 다음과 같은 연구결과를 도출되었다. 첫째, 경제한류와 문화한류는 명확히 구분되는 개념이었다. 둘째, 경제한류와 문화한류가 미국인들의 한국에 대한 태도에 긍정 적인 영향을 미치는 것이 확인되었다. 셋째, 한국에 대한 긍정적인 태도가 방문의도로 이어 지는 것이 확인되었다. 넷째, 문화한류는 미국인들의 한국 방문의도에 직접적인 영향을 미쳤 으나 경제한류는 간접적으로만 영향을 미쳤다. 이 연구의 결과가 일반화되기 위해서는 다른 문화권에서의 연구결과 축적과 비교가 있어야 가능하겠지만, 적어도 미국에서는 우리나라에 대한 태도 및 방문의도 형성에 경제한류의 파급력이 상당함을 보여주는 결과로 문화한류 못지않게 경제한류의 활용이 필요함을 보여주는 결과이다. Hallyu(The Korean wave) is a neologism referring to the increase in the popularity of Korean culture such as Korean TV dramas, Movie films, Korean pop songs, Korean food, and Korean online games. It began in late 1990s in China and the popularity of Hallyu gradually continued to spread across the continents. On the other hand, Korean commercial products such as cellular phones, TV monitors, and automobiles have gaining popularity recently. This phenomenon is called to Business Hallyu . Some researchers assert that Cultural Hallyu helps Business Hallyu and others insist that the other way is possible . In this study, the impacts of Cultural Hallyu and Business Hallyu on attitude and visit intention of US citizens are investigated. 289 samples are collected and the data was analyzed using Structural Equation Modeling technique. Findings are followed. It seems that Cultural Hallyu and Business Hallyu help each other. Cultural Hallyu impacts on attitude and visit intention. Business Hallyu impacts on attitude but not on visit intention.

암묵적 연합검사에 의한 관광소비자의 관광지 태도 측정

장동석(Dong Suk Jang) 한국관광연구학회 2013 관광연구저널 Vol.27 No.6

In this study the author wanted to examine tourist attitudes toward two casino cities. Las Vegas, US. and Jeonseon, Korea were the casino cities. Explicit and implicit attitude of samples were measured using traditional survey and Implicit association test. Then the result were compared. Gender difference was another study focus. A total of 64 samples were recruited for the study and 60 samples were analyzed. It appears that explicit and implicit level of tourist attitude toward two casino cities are quite different and some sort of gender difference exist. The Implications of this study are discussed.

경마공원 이용객 세분화 및 서비스품질이 고객신뢰와 고객만족에 미치는 영향 연구

장동석 ( Dong Suk Jang ) 대한관광경영학회 2014 觀光硏究 Vol.29 No.4

본 연구의 목적은 경마장 이용객을 인구통계적 특성과 경마장 이용특성을 동시에 고려하여 세분화하고 경마공원 서비스품질이 고객신뢰 및 고객만족에 인과적 영향을 미치는 지 또한 고객신뢰가 고객만족을 가져오는 지를 확인하기 위한 것이었다. 렛츠런파크 부산경남경마공원 이용객 251명의 설문응답이 분석에 이용되었으며, 경마공원 방문객의 성별과 혼인여부 그리고 방문횟수, 소비금액, 1회 배팅액수 등 경마장 이용행태를 기준으로 군집분류를 시도하여 4개의 구분되는 군집을 밝혀내었다. 선행연구와는 달리 경마공원 서비스품질이 고객신뢰 및 고객만족에 영향을 미치지 않았으며, 고객신뢰는 고객만족에 긍정적인 영향을 미치는 것을 발견하였다. 경마공원은 본 연구에서 도출된 4개의 군집별로 맞춤형 마케팅 전략을 수립하여 시행할수 있을 것이다. 결과에 대한 해석과 함께 본 연구의 학문적 의의와 실무적 공헌 그리고 한계점 및 미래의 연구가 논의되었다. In this work, the researcher wanted to define relationships between service quality, customer trust, and customer satisfaction in the horse racing park context. At the same time, a cluster analysis was conducted to find different horse race customer groups. Total 251 samples were collected from Busan-kyungnam horse race park. As results, 4 unique groups were identified and the cause and effect relationships among aforementioned variables were verified. Surprisingly, the service quality of horse race park didn``t impact on customer trust nor customer satisfaction. However, customer trust did impact on customer satisfaction in a positive way. Practitioners may want to use 4 groups from this study to make customized marketing strategies. Reasons of this result were inferred, and limitations and future research were discussed.

북한관광 재개 및 활성화를 위한 전문가 조사 연구

장동석(Dong Suk Jang),고계성(Kye Sung Ko) 한국관광연구학회 2014 관광연구저널 Vol.28 No.7

Even though the roles of tourism have been evaluated very important in the relationship between North and South Korea, only few studies has been made related to the matter. This study attempted to determine solutions to reopen and develop North Korea tourism by leading experts. It was found that many experts believe that North Korea tourism should be reopened as soon as possible and should be held as a way of neutral. Keumkang Mountain, Backdoo Mountain, and Pyongyang were the most significant tourism destinations in the North Korea. Ministry of Unification should take the main part in the North Korea tourism. Implications of the study have been discussed.

Case Report : A Case of Spontaneous Subdural Hematoma in a Patient with Autosomal Dominant Polycystic Kidney Disease

( Won Ik Jang ),신영태 ( Young Tai Shin ),함영록 ( Young Rok Ham ),정지윤 ( Ji Yoon Jung ),장동석 ( Dong Suk Chang ),정사라 ( Sa Rah Chung ),최대은 ( Dae Eun Choi ),나기량 ( Ki Ryang Na ),이강욱 ( Kang Wook Lee ) 대한신장학회 2010 Kidney Research and Clinical Practice Vol.29 No.6

Purpose: Intracranial manifestations associated with autosomal dominant polycystic kidney disease (ADPKD) include arachnoid cysts, dolichoectasias, and subdural hematoma (SDH), although there are only a few reports of SDH in patients with ADPKD. We report a case of spontaneous SDH in a patient with ADPKD. A 33-year-old woman complained of severe nausea and vomiting for 10 days. She had suffered from a headache for several months. She was diagnosed with ADPKD and hypertension 6 years earlier, and the hypertension was well controlled. Her mental state was drowsy in the emergency room. Her blood pressure was 180/105 mmHg. There was no evidence of head trauma. Results of a peripheral blood CBC and blood chemistry analysis were within normal limits, as were the results of a blood coagulation test and urinalysis. She was pregnant and in the eighth week of gestation. Brain magnetic resonance imaging revealed SDH in the left lateral convexity and focally in the right lateral convexity, and brain herniation. Surgical drainage was performed through a burr hole, under general anesthesia. Intra-operatively, 62 mL of liquefied subdural hematoma were removed. She recovered completely without sequelae.

혈액투석치료를 받는 말기신부전 환자에서 체내 수분분포와 임상상

장원익 ( Won Ik Jang ),배홍진 ( Hong Jin Bae ),함영록 ( Young Rok Ham ),장동석 ( Dong Suk Chang ),최대은 ( Dae Eun Choi ),나기량 ( Ki Ryang Na ),이강욱 ( Kang Wook Lee ),신영태 ( Young Tai Shin ) 대한신장학회 2011 Kidney Research and Clinical Practice Vol.30 No.3

Purpose: Maintenance of the normal hydration state is one of the major purposes of hemodialysis therapy in patients with end-stage renal disease. Overhydration is an important and independent predictor of mortality in patients with end-stage renal disease on regular hemodialysis. BCM (body composition monitor, FMC, Germany) reliably enables quantitative assessment of hydration status and body composition. The aims of this study were to investigate the relationship between hydration status and clinical features and the risk factors of overhydration. Methods: We measured hydration status and body composition of total 72 patients with end-stage renal disease on regular hemodialysis by BCM from June, 2009 to September, 2009. We also reviewed the clinical characteristics and laboratory findings and comorbidities retrospectively. Results: The hydration status measured by BCM was correlated well with interdialytic weight gain after 48 hours and 72 hours from last hemodialysis treatment (r=0.42 p<0.001, r=0.38 p<0.01, respectively). There was no statistically significant difference in comorbidities, age, sex, BMI, blood pressure, hypotensive episodes between the patients with overhydrated state (relative hydration status ≥20%) and control patients (relative hydration status <20%). In overhydrated patients, serum iron level was lower than control patients 48 hrs after last hemodialysis (p<0.05). Conclusion: This cross-sectional study showed that hydration status measured by BCM was correlated well with interdialytic weight gain although there was no significant clinical difference between overhydrated and control patients with end-stage renal disease on regular hemodialysis

감전에 대한 인체보호용 누전차단기의 전자회로 특성분석을 통한 누전트립 동작시간 개선에 관한 연구

김주철(Ju-Chul Kim),서문수(Moon-Soo Seo),장동석(Dong-Suk Jang),조숙현(Sook-Hyun Cho),한윤탁(Yoon-Tak Han),이상중(Sang-Joong Lee) 한국조명·전기설비학회 2016 조명·전기설비학회논문지 Vol.30 No.8

This paper analyzed the electronic circuit and investigated the electrical properties to improve the tripping time of domestic ELCB. The operating time of the ELCB showed different values according to the location of voltage waveform and the duration time of leakage current at the instant when the leakage input signal is occurred under rated voltage, and the maximum value of the time measured was up to 26 ms. This was due to the time delay of the IC characteristics used in the electronic circuit which is operated only for the reverse half cycle of the sine wave. The authors developed a prototype circuit breaker with optimized delay element and performed an operation test, through which reduction of the ELCB trip time required for the circuit breaker standard by half was possible. Reduction of operating time of ELCB implies improvement of human body protection against electric shock. It is expected that production of safer ELCB will be possible in the future if more advanced and reliable electronic circuit or IC is developed.

누전차단기의 전자회로 특성분석을 통한 동작시간 개선

김주철(Ju-Chul Kim),조숙현(Sook-Hyun Cho),이동신(Dong-Sin Lee),서문수(Moon-Soo Seo),김주삼(Joo-Sam Kim),민경윤(Gyeong-Yun Min),장동석(Dong-Suk Jang),이상중(Sang-Joong Lee) 한국조명·전기설비학회 2016 한국조명·전기설비학회 학술대회논문집 Vol.2016 No.5

糖尿病患者에서의 血淸 Fructosamine値의 變動

장동석,문상희,박태선,백홍선 의과학연구소 1988 全北醫大論文集 Vol.12 No.4

정상인 21명 및 전북의대 부속병원 내과 외래 및 입원한 당뇨환자로 타 질환을 동반하지 않고 혈당을 조절하지 않은 초진 당뇨환자 25명과 장기간 혈당조절을 하던 당뇨환자 17명을 대상으로 공복시 혈당, 당화혈 색소 및 혈청 fructosamine치를 측정하여 다음과 같은 결과를 얻었다. 1. 정상대조군의 혈당치는 91±1.37mg/dal, HbA₁은 6.15±1.23% 및 혈청 fructosamine치는 3.10±0.60mml/L이었다. 2. 혈당을 조절하지 않은 당뇨환자의 공복시 혈당은 224.07±77.47mg/dlm, HbA 은 10.31±1.52%로서 이 두 검사치의 상관계수는 0.546으로 중등도의 상관관계를 보였다. 3. 혈당을 조절하고 있던 당뇨환자의 공복시 혈당은 182.94±42.07mg/dl, AbA₁은 9.96±2.30% 및 혈청 fructosamine치는 5.51±1.27mmol/L이었다. 혈당을 조절하고 있던 당뇨환자의 HbA₁과 혈청 fructosamine치 간에는 상관계수 0.60으로 유의한 상관관계를 보였다. 이상의 결과로 미루어 혈당을 조절하고 있던 당뇨환자에서 공복시 혈당은 혈당조절의 지표로서 적절하지 못하나 혈당을 장지간 조절하지 않던 당뇨환자에서는 혈당조절의 정도를 반영하는 것으로 사료되며 당뇨환자에서 fructosamine측정은 당화혈색소와 같은 정도의 장기간의 혈당조절의 지표로 사용될 수 있는 편리한 방법으로 사료된다.