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이인홍(In Hong Lee),김동호(Dong Ho Kim),류근호(Keun Ho Ryu),김기룡(Ki Lyong Kim) 한국정보과학회 1995 한국정보과학회 학술발표논문집 Vol.22 No.1
시간지원 집계 처리는 기존의 데이타베이스에서 사용된 기법보다 큰 비용을 필요로 한다. 본 논문에서는 시간지원 집계 처리 전략들에 대하여 특징과 문제점을 지적하며, 시간지원 집계 트리 전략의 문제점인 사향트리를 해결한 개선된 집계 처리 전략을 제안한다.
김민호 ( Min Ho Kim ),김태경 ( Tae Kyoung Kim ),권순호 ( Soon Ho Kueon ),박시복 ( Si Bog Park ),이강묵 ( Kang Mok Lee ),이인홍 ( In Hong Lee ),배상철 ( Sang Cheol Bae ),유대현 ( Dae Hyun Yoo ),김성윤 ( Seong Yoon Kim ) 대한류마티스학회 1995 대한류마티스학회지 Vol.2 No.1
Objectives: Aims were to evaluate foot deformity in patients with rheumatoid arthritis for its types, prevalence, and relation with duration of the disease. Methods: Inspection, measuring of hallux valgus and calcaneal angle and footprint were done on 256 feet of 128 patients with rheumatoid arthritis. Transverse (metatarsal) arch and longitudinal arch were evaluated by foot printings. Results: 1) The most common type of foot deformities was hallux valgus in 175 of 256 feet (68.4%). Depressed transverse arches were in 169(66.0%), toe deformities including claw toe, hammer toe, curl toe and mallet toe in 125(48.9%), calcaneal valgus in 87(34.0%), callus in 67(26.2%), pes planus in 37(14.5%), and bunion in 25(9.8%) of 256 feet. 2) Foot involvements as the initial manifestation were seen in 41(32.0%) of 128 patients with rheumatoid arthritis. A duration of rheumatoid arthritis over 10 years were seen in 37 of 128 patients. In this patients mean number of involved toes per foot was 2.78 which was not statistically significant increase compared to that of all patients, 2.23 (p-value>0.05). Even with absence of foot symptoms in 28 of 128 patient with rheumatoid arthritis, toe deformities were seen in 1.55 toes per foot. And prevalence of hallux valgus, pes planus, depressed transverse arch and calcaneal valgus were 58.9%, 10.7%, 51.8% and 39.3% respectively. Conclusions: Foot deformities in patients with rheumatoid arthritis were usually inevitable complication. Even in the patients who had no foot symptom, there were foot deformities. So, we think that physicians should pay attention to the foot in all rheumatoid arthritis.
주기억장치에서 시간지원 데이타베이스의 집계함수 설계 및 구현
김동호(Dong Ho Kim),이인홍(In Hong Lee),류근호(Keun Ho Ryu) 한국정보과학회 1994 정보과학회논문지 Vol.21 No.8
본 논문은 시간지원 데이타베이스에서 사용되는 집계함수의 설계와 구현에 대하여 설명한다. 시간지원 정형 의미를 사용하여 집계함수, 고정 간격 집합, 그리고 분할 등의 요소들을 표현 하였으며, 집계화 트리 전략을 사용하여 시간에 따라 변화하는 릴레이션을 대상으로 집계화를 처리하였다. 집계화 트리 전략은 릴레이션내의 튜플들이 시간속성에 대하여 정렬되지 않았거나 기저 릴레이션을 대상으로 분할하는 경우 적합한 처리 기법이다. 본 논문에서 제안된 집계함수에 대한 분류는 실세계의 여러 응용 분야에서 요구되는 집계함수의 개발에 도움이 된다. This paper describes the design and implementation of aggregate functions used in temporal databases. The elements such as aggregate functions, time partition and constant interval set are defined by temporal formal semantics. An aggregate tree strategy has been used for the operation of aggregate in time variant relation. The aggregate tree strategy works well not only when tuples have not been aligned on a basis of tuple's valid time attribute but also when the base relation should be partitioned. The classification of aggregate functions can help someone to develop the operator more effectively in various application area of real world.
김동호(Kim Dong Ho),이종연(Lee Jong Yun),류근호(Ryu Keun Ho),이인홍(Lee In Hong) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.7
Temporal databases support an efficient historical representation and operation for an object in the real world. Especially, temporal aggregates generate an additional information by means of computations from objects that is valid at past as well as current time. It is one of important areas to serve to users as various type of aggregates as possible so that they enhance the overall system performance and efficiency. In this paper, we not only introduce temporal aggregate tree strategy as an efficient processing technique for given temporal aggregate query, but also analyze the overall processing cost and then evaluate its performance.
복수의 성상을 감별 진단함에 있어서 복수의 지질 , 혈청과 복수의 Albumin 농도비 , LDH 동위효소 및 복수내 Fibronectin 치의 의의
이인홍(In Hong Lee),윤인혁(In Hyuk Yoon),전재범(Je Bum Chun),함준수(Joon Soo Hahm),이종철(Jong Chul Lee),이민호(Min Ho Lee),이동후(Dong Hoo Lee),박경남(Kyung Nam Park),기춘석(Choon Suhk Kee) 대한내과학회 1992 대한내과학회지 Vol.43 No.3
Background: There are many parameters available to differentiate between malignant and non-malignant acsites. We studied the diagnostic value of ascitic lipid, LDH isoenzymes, serum ascites albumin gradient ratio and fibronectin levels to differentiate between malignant & non-malignant ascites. Methods: 51patients with ascites (21cirrhosis, 2nephrotic syndrome 17, various neoplasms and 11both cirrhosis & hepatocellular carcinoma) were studied to evaluate the diagnostic value of above mentioned 4parameters. Results; 1) Above mentioned 4parameters are statistically very significantly different between malignant and non- malignant ascites than previous parameters. 2) Total ascitci LDH levels ard LDH and LDH levels are markedly high in malignant ascites than LDH and LDH levels. 3) The median and mean values of cholesterol, triglycerides, phospholipids and total lipids were significantly high in malignant specificity of ascitic cholesterol in the differentiation between malignant ascites and benign ascites were 82% and 100% respectively as a cut off value of ascites cholesterol is 42mg/dl. 4) Serum ascites albumin gradient ratio in malignant ascites (0.88±0.62) and benign ascites (4.77±1.250) showed signifacantly difference, and diagnostic sensitivity and specificity are 80% and 100% as a cut off value is less than 1.1. 5) Ascitic Fibronectin levels are significantly high in malignant ascites (116±75 mg/1) than benign ascites (32±21mg/1). Its diagnostic sensitivity-and specificity are 61% and 96% as a cut off value is over 85mg/l. Conclusion; Above 4 parameters ard statistically significant to differenciate between malignant and non- malignant ascites, especially serum ascites albumin gradient ratio and ascitic lipids levels are more valuable for the differential diagnosis of ascites.
조기 류마티스 관절염 환자에서 수부 방사선학적 소견 및 진행의 의의 (意義)
송용호(Yong Ho Song),전재범(Jae Bum Jun),정자헌(Ja Hun Jung),장대국(Dae Kook Chang),심승철(Seung Cheol Shim),고희관(Hee Kwan Koh),김태환(Tae Hwan Kim),정성수(Sung Soo Jung),이인홍(In Hong Lee),배상철(Sang Cheol Bae),유대현(Dae Hyun Y 대한내과학회 1998 대한내과학회지 Vol.55 No.6
Objectives: To evaluate the disease status in relation to the radiological findings of hands using some short term indices of disease activity and laboratory tests in early rheumatoid arthritis. Method: 136 patients with symptoms of rheumatoid arthritis for less than 2 years were studied by means of measuring erythrocyte sedimentation rate, C-reactive protein, rheumatoid factor, and anti-nuclear antibody. Of these, 71patients were performed the radiographies of hands at mean 1.3months after diagnosis, Also, 30 radiological films of hands were studied for measurement of intra- & inter-observer variations by well-trained rheumatologist and radiologist. All films were scored by the modified Sharps method. Results: The radiological features of hands showed that the carpal bone was involved more common in the bony erosion (5.7%) and the joint space narrowing (8.8%), and the radiological progression in the interval of 24 months was positively correlated with the disease duration(p<0.05). Also, the radiological lesions and progressions appeared more severe in high disease activity, C-reactive protein (r : 0.334, p : 0.004) and Ritchie index (r : 0.249, p : 0.01) at diagnosis. On the other hand, they were correlated negatively with the age of disease onset (r : -0.357, p : 0.002). The Spearman correlations of inter- & intra-observer varia1ians were signi5cant by 0.716 and 0.775. Conclusion: The development of radiological lesions in early rheumatoid arthritis is closely correlated with the duration of disease. The patients with early rheumatoid arthritis who had active arthritis at the time of diagnosis showed mare severe radiological progressions.
이명호 ( Myong Ho Lee ),정성수 ( Sung Soo Jung ),홍관표 ( Kwan Pyo Hong ),김태환 ( Tae Hwan Kim ),전재범 ( Jae Bum Jun ),이인홍 ( In Hong Lee ),배상철 ( Sang Cheol Bae ),유대현 ( Dae Hyun Yoo ),김성윤 ( Seong Yoon Kim ),김목현 ( M 대한류마티스학회 1997 대한류마티스학회지 Vol.4 No.1
Object: To investigate the characteristics of diffuse idiopathic hyperostosis (DISH) in Koreans. Methods: The nine patients of DISH were investigated in terms of symptom, involved area in simple X-ray, accompaning disease, serum uric acid level, and serum triglyceride and cholesterol. Results: Eight of nine patients were male, one patient was female, and their mean age was 64. Their symptoms were no symptom (2/9), neck pain (2/9), dorsal pain (2/9), and low back pain (3/9). The involved areas were the cervical vertebrae (1/9), the lower thoracic vertebrae (3/9), or the lower thoracic and upper lumbar vertebrae(5/9). The accompaning diseases were ankylosing spondylitis (1/9), degenerative joint disease (2/9), posterior laminectomy (1/9), diabetes mellitus (1/9), chronic active hepatitis (1/9), cerebrovascular accident (2/9), hypertension (2/9), chronic renal failure (2/9), and gout (2/9). In the cases involving thoracic vertebrae, the ossification was seen dominantly in the right side. Four of nine patients had diabetes mellitus, hyperuricemia (7.0 mg/dl in male and 6.6 mg/dl in female), or dyslipidemia (194 mg/dl in serum triglycerid level and 275 mg/dl in serum cholesterol level). Conclusions: In our cases of DISH, it was dominant in male and old age, and the diabetes mellitus or hyperuricemia was more frequently found than in general population.
Peripheal Neuropathy를 동반한 Microscopic Polyangiitis
변재원 ( Jai Won Byun ),이인홍 ( In Hong Lee ),정자헌 ( Ja Hun Jung ),김기찬 ( Ki Chan Kim ),김태환 ( Tae Hwan Kim ),전재범 ( Jae Bum Jun ),정성수 ( Sung Soo Jung ),배상철 ( Sang Cheol Bae ),유대현 ( Dae Hyun Yoo ),김호중 ( Ho Jun 대한류마티스학회 2000 대한류마티스학회지 Vol.7 No.2
Microscopic polyangiitis (MPA) is a systemic necrotizing vasculitis of small-sized vessels (capillary, venule, or arterioles) whose clinical manifestations are very similar to those of PAN (polyarteritis nodosa), but it is characterized by the presence of rapidly progressive glomerulonephritis (RPGN), which is nearly constant, and pulmonary involvement usually absent in PAN. Peripheral neuropathy occurs in only 14~36% of the patients with MPA, distinctly less frequent than in those with classic PAN. While PAN may be considered a self-limiting disease which tend not to recur once remission is acquired, relapse occurs frequently in MPA. Prognosis has been transformed by corticosteroids and immunosuppressive drugs, especially cyclophosphamide. We reported a 72-year-old woman with subacute sensorimotor polyneuropathy involving peroneal and sural nerve accompanied by focal segmental glomerulonephritis which was proven by renal biopsy.