• 한국식생활문화학회지
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• 제1권2호
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• pp.171-176
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• 1986

The drinking manners of the modern generaton were reviewed based on historical records. First, for reasons of health, we should reject the drinking from the same cup as others in reciprocation. Second, if the other people are older or younger brothers above the same level, pouring with one hand is all right, but if 5 years older or more, or stranger, grasp the bottle in two hands in the following manner. With the right hand under the bottle, and the left hand supporting its side, carefully pour wine not to show the palm of the hand. Third, ladies, also, can drink freely at the same table, but if people of the opposite sex are sitting together, they should pour with two hands to convey the meaning of courteous treatment. Fourth, because the level of our living is not two high, we must not order more them we can use, so that when we are finished, there will be no remainder.

• 한국전문물리치료학회지
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• 제15권3호
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• pp.44-52
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• 2008

The purpose of this study was to investigate the effects of different objects and target location of dominant hand on the non-dominant hand movement kinematics in a bimanual reaching task. Fifteen right-handed volunteers were asked to reach from same starting point to the different target point of right and left hand with grasping the objects of different size. Independent variables were 1) three different object types (small mug cup, name pen, and PET bottle), and 2) three different target locations (shorter distance, same distance, and longer distance than the non-dominant hand) of the dominant hand. Dependent variables were movement time (MT), movement distance (MD), movement mean velocity ($MV_{mean}$), and movement peak velocity ($MV_{peak}$) of the non-dominant hand. Repeated measures two-way analysis of variance (ANOVA) was used to test for differences in the non-dominant hand movement kinematics during bimanual reaching. The results of this study were as follows: 1) MT of the non-dominant hand was increased significantly when traveling with grasping the mug cup and reaching the far target location, and was decreased significantly when traveling with grasping the PET bottle and reaching the near target location of the dominant hand. 2) MD of the non-dominant hand was significantly increased during reaching the far target location, and significantly decreased during reaching the near target location with dominant hand. 3) $MV_{mean}$ of the non-dominant hand was increased significantly when traveling with grasping the PET bottle, and was decreased significantly when traveling with grasping the mug cup of the dominant hand. Therefore, it can be concluded that the changes of the ipsilateral hand movement have influence on coupling of the contralateral hand movement in bimanual reaching.

• Korean Journal of Radiology
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• 제22권11호
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• pp.1764-1776
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• 2021

Objective: This study aimed to validate a deep learning-based fully automatic calcium scoring (coronary artery calcium [CAC]_auto) system using previously published cardiac computed tomography (CT) cohort data with the manually segmented coronary calcium scoring (CAC_hand) system as the reference standard. Materials and Methods: We developed the CAC_auto system using 100 co-registered, non-enhanced and contrast-enhanced CT scans. For the validation of the CAC_auto system, three previously published CT cohorts (n = 2985) were chosen to represent different clinical scenarios (i.e., 2647 asymptomatic, 220 symptomatic, 118 valve disease) and four CT models. The performance of the CAC_auto system in detecting coronary calcium was determined. The reliability of the system in measuring the Agatston score as compared with CAC_hand was also evaluated per vessel and per patient using intraclass correlation coefficients (ICCs) and Bland-Altman analysis. The agreement between CAC_auto and CAC_hand based on the cardiovascular risk stratification categories (Agatston score: 0, 1-10, 11-100, 101-400, > 400) was evaluated. Results: In 2985 patients, 6218 coronary calcium lesions were identified using CAC_hand. The per-lesion sensitivity and false-positive rate of the CAC_auto system in detecting coronary calcium were 93.3% (5800 of 6218) and 0.11 false-positive lesions per patient, respectively. The CAC_auto system, in measuring the Agatston score, yielded ICCs of 0.99 for all the vessels (left main 0.91, left anterior descending 0.99, left circumflex 0.96, right coronary 0.99). The limits of agreement between CAC_auto and CAC_hand were 1.6 ± 52.2. The linearly weighted kappa value for the Agatston score categorization was 0.94. The main causes of false-positive results were image noise (29.1%, 97/333 lesions), aortic wall calcification (25.5%, 85/333 lesions), and pericardial calcification (24.3%, 81/333 lesions). Conclusion: The atlas-based CAC_auto empowered by deep learning provided accurate calcium score measurement as compared with manual method and risk category classification, which could potentially streamline CAC imaging workflows.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1991년도 춘계학술대회
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• pp.71-73
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• 1991

In this study electrical impedance plethysmograph was developed and each ten digital blood flow was measured for eight normal males and a patint with digital arterial reconstruction surgery. Blood flow of the digit with surgery was approximately fourty percent compared to that of the other normal digit. For the normal subjects, right-handed subjects generally have larger blood flow in right fingers than that in left fingers while it was reverse for the left-handed subjects. The relative average magnitude of the digital blood flow is the third, first, second, fourth, and fifth digit in descending order for the left and right hand, respectively. Blood flow of the fifth digit for all subjects except one was the smallest among the five digits.

• Journal of Chest Surgery
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• 제20권3호
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• pp.544-547
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• 1987

Pulmonary vein wedge angiography was applied to two patients of 2 years old TOF with PFO. Left pulmonary artery was not visualized by standard right ventriculogram and catheter was not entered into main pulmonary artery. Through PFO and left atrium, pulmonary vein wedge angiography at left lower pulmonary vein was done. The ipsilateral pulmonary artery & its trees in both cases and the contralateral pulmonary artery in one case were well visualized. Dangerous complication, such as massive bronchoconstriction due to extravasation of contrast material into the bronchus, was not developed. Mild coughing was occurred, but well tolerable in both cases. We recommended a dose of 0.8 mL/Kg of contrast material at a rate of 2 to 3 mL/sec and 1 to 2 mL/Kg of flush solution at the same rate by the hand, and routine use of pulmonary vein wedge angiography in cyanotic patients whose pulmonary artery was not visualized by the standard angiography.

• 대한의용생체공학회:의공학회지
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• 제12권1호
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• pp.23-28
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• 1991

In this study electrical impedance plethysmograph was developed and each ten digital blood flow was measured for eight nomal males and a patient tvith digital arterial reconstruction surgery. Blood flow of the digit with surgery was approximately fourty percent compared to that of the other normal digit. For the normal subjects, right - handed subjects generally have larger blood flow in right fingers than that in left fingers while it was reverse for the left - handed subjects. The relative average magnitude of the digltal blood flow Is the third, first, second, fourth, and fifth digit in descending order for the left and rich hand, respectively. Blood flow of the fifth digit for all subjec!s except one was the smallest among the five digits.

• The Korean Journal of Pain
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• 제7권2호
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• pp.299-302
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• 1994

Prostaglandin E1(PGE1) is a potent vasodilator and is a useful drug for the treatment of occlusive peripheral vascular disease. It has been used systemically via intravenous route or regionally via intraarterial route. We tried intravenous regional administration of PGE1 for the treatment of a patient with occlusive arterial disease involving left fingers. During the 13th injection, the patient complained of severe pain at the injection site during the drug administration. Thereafter, the patient developed painful and severe swelling with blebs on his left hand. Systemic antibiotics were given together with stellate ganglion block of the affected left side. PGE1 was substituted to reserpine, which is subcutaneously injectable, for the second term treatment.

• 대한교통학회지
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• 제12권2호
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• pp.47-63
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• 1994

The purposes of this study are to identify Traffic Flow characteristics and to develop approach delay model of unsignalized intersection based on the travel speed in the conflicting area. The results of this study are as following ; 1. The cumulative frequency distributions of Left-turning speed show a few differences among approaches and they are distributed to lower range of speeds. On the other hand, those of through speed show obvious differences among bounds. The similar results also show in the analysis of Percentile speed. 2. The effectiveness of conflicting movements to travel speed in the conflicting area are analyzed using regression analysis. Left-turning speed model shows that Left-and Right-Conflicting speed. Through-speed model is also developed, when approaching through volume is less than 420vph. 3. Since the lost time due to the acceleration stop, and decelerlation is occured in the conflicting area, approach delay model is delivered using the travel speed models under the condition of small queuing delay.

• 대한물리치료과학회지
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• 제1권2호
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• pp.215-222
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• 1994

The aim of this study was to determine the normative strength value for cervical flexors, extensors and right lateral flexors, left lateral flexors to provide a guideline for rehabilitation of cervical radiculopathy patients. The isometric evaluation of cervical flexors, extensors and lateral flexors by using the Hand-held dynamometer was performed on 50 males and 50 females. The result were as follows. The average cervical muscle strength were 5.7 kg in flexor. 10.5 kg in extensors, and 6.6 kg in right lateral flexor, 6.5 kg in left lateral flexor. There was statistically significant difference between the cervical flexors and extensors(p<0.01) but no significant difference between right lateral flexor and left lateral flexor. There was statistically significant difference between male and female(p<0.01). When one of cervical muscle was strong, also the others did in subjects(p<0.01) and the body weight was significantly releated to the cervical muscle strength(p<0.01).

• The Korean Journal of Physiology
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• 제17권2호
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• pp.93-101
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• 1983

국소한냉자극이 전신 및 국소혈액순환에 미치는 영향과 동계에 있어서 한냉에 대한 적응을 관찰하기 위하여 동계 및 하계에 편균연령 21세의 남녀 대학생 각 60명 및 50명을 대상으로 $5^{\circ}C$의 냉수에 일측 손을 담구어 3분간 국소한냉자극을 가하였다. 침수 1, 2, 3분과 회복기 1, 3, 5분에 침수한 측과 침수 반대측에서 평균혈압, 분시심박수, 광전 모세혈관 맥박의 파고, 피부전기저항을 관찰하여 다음과 같은 결과를 얻었다. 국소한냉자극시 혈압은 증가하였고 하계에서 동계보다 더 큰 증가를 보였다. 회복기에 동계는 서서히 대조치로 회복되나 하계에는 대조치보다 유의하게 감소하였다. 분시심박수는 침수시 증가하며 하계에서 동계보다 더 증가하였고 회복기에는 동계 및 하계 모두 대조치보다 감소하였다. 광전 모세혈관 맥박의 파고는 동계에는 침수 및 침수 반대측 모두 감소하였으나 침수한 측에서 더 크게 감소하였으며 이는 침수한 측에 있어서 한냉의 국소효과에 기인한 것으로 보인다. 하계에는 동계보다 작은 감소를 보였으며 회복기에는 더 빠른 회복을 보여 대조치보다 증가하였다. 피부전기저항은 침수시 침수 반대측에서는 감소하나 침수한 측에서는 유의하게 증가하였다가 회복기에 서서히 감소하였다. 침수 반대측의 감소는 동통에 의한 반응이 한냉에 의한 반응에 첨가되어 나타난 것으로 보이며, 침수한 측은 한냉에 의한 국소효과가 크기 때문인 것으로 보인다. 이상으로 $5^{\circ}C$의 국소한냉자극시 전신적 반응은 한냉자극에 의한 동통성 stress에 기인한 반응이 우세한 것으로 생각되며 김 등$^{39)}$의 보고와는 달리 동계 및 하계의 반응의 차이는 계절에 따른 한냉자극에 대한 주관적 감각의 차이에 의한 것으로 동계에서 한냉기후에 의한 국소한냉자극의 적응현상은 나타나지 않는 것으로 사료된다.