• 한국식품영양학회지
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• 제24권4호
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• pp.630-638
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• 2011

This study was performed to assess the relationships among bone mineral density, anthropometric measurements, maternal factors and exercise in premenopausal and postmenopausal women. Anthropometric measurements were taken by a trained practitioner and the maternal factors of the 78 subjects in Gyeonggi-do were acquired by an interview questionnare. The BMD of the lumbar spine(L2~L4), femoral neck, Ward's triangles and trochanters were measured by dual energy X-ray absorptiometry. The mean age of the premenopausal women was 45.23 years and that of the postmenopausal women whose ase of menopause was 49.37 years was 61.27 years. The age, waist and waist to hip ratio of postmenopausal women were significantly higher than those of premenopausal women. BMD of the lumbar spine(L2~L4) in postmenopausal women was significantly higher than that of premenopausal women. Number of children and age at last delivery were significantly higher in postmenopausal women than those in premenopausal women. The BMDs of the lumbar spine and femoral neck of premenopausal women was positively correlated with weight, body mass index, waist and WHR and the BMDs of these two sites in postmenopausal women were positively correlated with height, and weight. In postmenopausal women, BMD of the lumbar spine was negatively correlated with duration time after menopause and BMD of the femoral neck was positively correlated with age at last delivery. These results suggest that it is necessary to maintain adequate body weight. Health management and education about performing more exercise are recommended for postmenopausal women to prevent osteoporosis.

• 한국산학기술학회논문지
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• 제15권8호
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• pp.5363-5368
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• 2014

본 논문은 소양호 유역을 대상으로 배수구역의 유달오염부하량을 산정하여 유황 및 계절변화에 따른 소양호 유역에 미치는 기여율을 평가 하였다. 유황변화에 따른 배수구역의 기여율을 보면 인북천 유역의 SS와 T-P 항목이 평수량 이상과 저수량 기간에서 46%와 51%의 기여율을 T-P는 평수량 49.5%, 저수량 기간은 48.5%의 기여율을 보였다. 다음으로 계절 변화에 따른 기여율을 관찰한 결과, 인북천 SS 항목이 전 계절 동안 39.6%에서 44.3%를 T-P는 53.8%로 다른 배수구역에 비하여 높은 기여율을 보였다. T-N은 전 계절에서 내린천 유역이 39.6%에서 44.3%의 기여율을 보였다. 전체적으로 인북천 유역의 SS와 T-P 항목, 내린천의 T-N이 소양호 유역의 오염물질 유출에 높은 기여율을 보였다.

• 전자공학회논문지CI
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• 제44권3호
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• pp.49-56
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• 2007

IEEE 802.15.4 저속 무선 개인 통신망(low rate wireless personal area network)은 유비쿼터스 센서네트워크를 구성하는데에 적합한 프로토콜이다. 그러므로, 최근에 다양한 응용네트워크에서 IEEE 802.15.4 프로토콜에 대한 관심이 증대하고 있다. 본 논문에서는 실시간 트래픽 처리를 위하여 보장 시간 슬롯(Guaranteed time slots, GTS)을 할당하며, 이러한 할당방식을 적용시에 IEEE 802.15.4 프레임 및 부프레임과 관련된 최적의 파라미터들을 획득하는 방법을 제안한다. 네트워크에 있는 각 노드에 할당된 대역폭과 주기값에 대한 요구사항들이 주어질 때, 이들 요구사항들을 만족시키는 비콘 주기(beacon period)와 활성/비활성 부프레임 시간들의 후보들을 선택하고, 이들 중 가장 낮은 듀티 사이클(duty cycle)을 낼 수 있는 파라미터를 선택한다. 이들 최적 파라미터를 기반으로 하여 본 논문의 분석 결과는 소모전력 절약을 포함한 네트워크 자원을 효율적으로 이용할 수 있는 방식을 제공한다.

• 대한한방부인과학회지
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• 제20권3호
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• pp.185-199
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• 2007

Purpose: This study was designed to establish safety and efficacy of using herbal medicine during pregnancy. Methods : We searched through 23 sources, which had been previously published frome 1988 to 2007, concerned patients that used herbal medicine during pregnancy. We searched diseases for that used herbal medicine, kinds of herbal medicine taken, the period of herbal medicine taken, the duration of herbal medicine taken and results of herbal medicine taken. Results: 1. Whaltae(habitual abortion) was the most of diseases that used herbal medicine during pregnancy. Second disease was hyperemesis gravidum. Third disease was Taegibulan (fetal restlessness). 2. The most of Herb medicines of used for Whaltae was Kyoesamultang and Anjeonecheontang. The most of Herb medicines of used for hyperemesis gravidum was Bosaengtang. The most of Herb medicines of used for Taegibulan was Kyoesamultang. 3. The time of herbal medicine taken mostly was the first period of pregnancy. The rate was 78%. 4. The duration of herbal medicine taken mostly was $18.58{\pm}14.24day$ at mean. 5. The rate of normal delivery was 85% and herbal medication during pregnancy does not cause any deformity to the newborn and of patients used herbal medicine. 6. The patients of taken herbal medicines were recovered from their symptoms and prevented miscarriage. The rate of recovery was 87%. Conclusion: The results of this study show that herbal medication during pregnancy is effective to cure disease and maintain the pregnancy. It is thought that have to actively try to treat diseases and symptoms on pregnancy by using herbal medicine.

• 근관절건강학회지
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• 제6권1호
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• pp.37-50
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• 1999

The purpose of this study was to identify the risk factors of osteoporosis. The data were collected from women who visited Physical Examination Center of a university hospital located in Taejon during the period of September 1997-August 1998. The sample was divided into two groups(the osteoporosis group of 44 cases and the control group of 66 cases). The results were summarized as follows ; 1. Sociodemographic characteristics(education and family income) and BMI showed no significant difference between the osteoporosis group and the control group. 2. There was no significant difference in coffee, unbalanced diet, diet method and meal habit between the osteoporosis group and the control group. 3. The osteoporosis group reported more incidence of operative menopause due to hysterectomy and oophorectomy, but this was not statistically significant. There was no significant difference in use of oral pill use, past disease and family history of fracture between the osteoporosis group and the control group, but the odds ratio(OR 3.11, 95% CI : 1.30-7.41) of present illness was statistically significant in the osteoporosis group. 4. There was no significant difference in the reproductive history including number of delivery and abortion and feeding method between the osteoporosis group and the control group. 5. The osteoporosis group showed significant results of lower menopausal age, shorter duration of menstruation and longer duration after menopause compared to the control group. 6. The osteoporosis group reported significantly lower level of physical activity in such variables as work activity and walking time. 7. A logistic analysis showed that shorter period of menstruation, lower level of physical activity, non-alcohol drinking group, and presence of disease were related to the possibility of occurring of osteoporosis.

• 한국물환경학회지
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• 제37권4호
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• pp.249-262
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• 2021

This study investigated the pollution characteristics of the main pollution zone in the Hwangguji watershed and the influence of the tributary on the main stream. The characteristics of the main pollution zone, including, the water quality index (WQI), stream rating, load duration curve (LDC), delivery load density (DLD), and contribution of the tributary to the mainstream, were evaluated by time-series visual heatmap. The WQI of the mainstream of Hwangguji was lowered to the poor (IV) level from the inflow point of Suwon stream (SW) and the LDC excess rate in the T-P was higher than that of BOD₅, especially for the wet season, suggesting that management of non-point source with T-P is preferred. The contribution (%) of the tributaries in the upstream section of Hwangguji watershed were BOD₅ 14.54%, TOC 15.67%, T-N 5.43%, and T-P 6.97%. In particular, the Suwon sewage treatment plant located in the mainstream showed a high contribution of BOD₅ (64.40%) and T-P (53.54%), respectively, due to the high discharge rate (6.019 m³/sec). Meanwhile, Sammi and Gal stream have a large impact on the mainstream with high DLD and poor WQI. Thus, both streams were considered as pollution hot spots. These results provide useful basic data for preparing more effective water quality improvement and management plans in the watershed.

• The Korean Journal of Pain
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• 제10권2호
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• pp.196-202
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• 1997

Background: Various pain treatments have been administered to relieve patients suffering from postoperative pain. Among these, epidural or intravenous opiate administration is by far the most widly applied treatment in recent times. However it was our objective to device a more effective and safe means of postoperative analgesia. Methods: We studied 110 healthy pregnant women scheduled for delivery by elective cesarean section. EPI(epidural)-group is administered morphine 1.5 mg and 0.25% bupivacaine 8 ml as bolus dose, then, a mixture of morphine 6 mg and 0.125% bupivacaine 95 ml as continuous dose via epidural route. IV(intravenous)-group is administered nalbuphine 6~7 mg as bolus dose and nalbuphine 60~70 mg with 0.9% normal saline 90 ml as continuous dose via intravenous route, at the rate of 2 ml/hr for 2 days. We compared the analgesic efficacy and side effects of these two groups using VAS pain score and time duration of constant pain level. Results: VAS pain score was similar between the two groups, but pain duration was significantly shorter in EPI-group. Incidence of pruritus was significantly lower with the IV-group, of nausea and vomiting were similar for both groups, no respiratory depression for either groups. Conclusions: Although the EPI-group had better analgesic efficacy, the IV-group had lower incidence of side effects, and simplicity and safety methods of operation. Therefore, We propose further research and consideration of administering the kinds and doses of those medications prescribe to the IV group in conjunction with other drugs for safer and better efficacy of postoperative analgesia.

• Journal of Chest Surgery
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• 제27권3호
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• pp.226-229
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• 1994

VATS is now used by many thoracic surgeons and in various anatomic locations such as lung parenchyme, pleura and mediastinum, etc. VATS of mediastinal masses has special characteristics compared to that of other diseases. Those are no positional changes of the mass during collapse of the lung and close proximity of the mass to major vascular structures, nerves and other vital organs. From 1992. July to 1993. August, 10 mediastinal masses were treated with video assisted thoracoscopy. There were five males and five females, ages ranged from 11 years to 65 years with average 37.7 17.7 years old. Of the 10 patients, 4 were bronchogenic cysts, 2 were teratoma, and the others were thymoma, neurilemmoma, pericardial cyst, and thymic cyst. Needle aspiration was done in large cysts and the working thoracotomy[or utility thoracotomy] was done in large solid masses for the purpose of easy dissection, easy handling and easy delivery of the mass. The average operation time were 155.6 6.8 minutes and the duration of air leakage were 1 2.2 days. The duration of the chest tube drainage were 3.3 2.6 days. The lengths of the postoperative hospitalization were 5.1 2.7 days which were shorter than those of 12 mediastinal masses treated with conventional thoracotomy during the same periods [p<0.05]. There was 1 patient converted to thoracotomy because of a bleeding at innominate vein. 3 postoperative complications were occured. Those were persistent air leakage for 7 days, diaphragmatic palsy and hoarseness which were recovered within 1 month. We conclude that mediastinal mass can be excised with video assisted thoracoscopy and the posthospitalization is reduced. But careful attention is required for avoiding injury to major vascular structures, nerves, and other vital organs.

• Journal of Dental Anesthesia and Pain Medicine
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• 제22권2호
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• pp.117-128
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• 2022

Background: Moderate sedation is an integral part of dental care delivery. Target-controlled infusion (TCI) has the potential to improve patient safety and outcome. We compared the effects of using TCI to administer remifentanil/manual bolus midazolam with manual bolus fentanyl/midazolam administration on patient safety parameters, drug administration times, and patient recovery times. Methods: In this retrospective chart review, records of patients who underwent moderate intravenous sedation over 12 months in a private dental clinic were assessed. Patient indicators (pre-, intra-, and post-procedure noninvasive systolic and diastolic blood pressure, respiration, and heart rate) were compared using independent t-test analysis. Patient recovery time, procedure length, and midazolam dosage required were also compared between the two groups. Results: Eighty-five patient charts were included in the final analysis: 47 received TCI-remifentanil/midazolam sedation, and 38 received manual fentanyl/midazolam sedation. Among the physiological parameters, diastolic blood pressure showed slightly higher changes in the fentanyl group (P = 0.049), respiratory rate changes showed higher changes in the fentanyl group (P = 0.032), and the average EtCO₂ was slightly higher in the remifentanil group (P = 0.041). There was no significant difference in the minimum SpO₂ levels and average procedure length between the fentanyl and remifentanil TCI pump groups (P > 0.05). However, a significant difference was observed in the time required for discharge from the chair (P = 0.048), indicating that patients who received remifentanil required less time for discharge from the chair than those who received fentanyl. The dosage of midazolam used in the fentanyl group was 0.487 mg more than that in the remifentanil group; however, the difference was not significant (P > 0.05). Conclusion: The combination of TCI administered remifentanil combined with manual administered midazolam has the potential to shorten the recovery time and reduce respiration rate changes when compared to manual administration of fentanyl/midazolam. This is possibly due to either the lower midazolam dosage required with TCI remifentanil administration or achieving a stable, steady-state low dose remifentanil concentration for the duration of the procedure.

• 여성건강간호학회지
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• 제7권3호
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• pp.382-392
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• 2001

The purpose of this study is to investigate breast-feeding and breast-feeding health behavior among korean first-time mothers and to provide basic data for promoting breast- feeding. Data were collected by interview or self report from 444 first-time mothers who visited health clinic center in the area of metropolitan, medium or small city, countryside. and whose infants were under 12 months old from January 2001 to February 2001. The results show that breast-feeding was 31.5% in a week after childbirth, 25.8% in 4 weeks after childbirth, 22.7% in 2 months, 17.8% in 3 months, 14.3% in 6 months, 2.5% in 12 months after childbirth. Breast-feeding rate was very low in Korea and the duration of breast-feeding was very short. Breast-feeding health behavior did not show significant differences by general characteristics of the subjects except area. The subjects in the health clinic center with MCN project did better breast feeding health behavior than the subject in the health clinic center without MCN project. To raise breast-feeding rate, several strategy could be suggested. Systemic education about importance and advantages of breast-feeding and desirable breast-feeding method should be provided to pregnant women and postpartum women. Childbirth leave in the work should be prolonged, and supportive facility such as nursery room should be installed for working mothers. Hospitals should follow the guideline of 'Baby Friendly Hospital Initiative' which was provided by UNISEF and WHO, including rooming-in after delivery.