피혁슬러지 고형화시 시멘트 혼화제의 영향

주소영,박상찬,전태성,손종렬,김태영 대한위생학회 2003 대한환경위생공학회지 Vol.18 No.4

The cement-based system among S/S(Solidification/Stabilization) is widely used to treat hazardous wastes. In this study, tannery sludge was solidified to evaluate the stabilization effects of using admixtures in the cement-based S/S. Fly ash as substitute also used to increase the strength of the S/S of hazardous waste. The compressive strength measurement and leaching experiment of chromium metal of solidified mortar were carried out to compare and evaluate the physical and chemical characteristics of solidified hazardous waste sludge. From the result of this study, there was increased of compressive strength by using AEW-3(early-hardening AE water reducing agent), and leaching concentration of chromium became low enough to satisfy the regulatory criteria. The successful solidification for the organic contaminant and heavy metal in hazardous waste should enable to treat by cement-based system using early-hardening AE water reducing admixture and fly ash as substituted cement.

좌새골하정맥을 통하여 중심정맥도관 삽입 3 일 후에 발생한 상대정맥천공과 우흉수 : 증례 보고 A case report

조형찬,손주태,최준영,신일우,이헌근,정영균 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.4

A 67-year-old male patient had coronary artery bypass graft. Before the induction of general anesthesia, 16 gauge central venous catheter was inserted via left subclavian vein. Initial chest anteroposterior (AP) radiograph showed adequate position, and the central venous pressure measurement through it was satisfactory. This patient's progress was satisfactory, and he was extubated on the second postoperative day. Daily chest AP radiograph had been unremarkable until the third postoperative day, when a right-sided pleural effusion was seen. A day later, the patient complained severe chest pain and dyspnea. We suspected perforation of superior vena cava wall by tip of central venous catheter on the chest computerized tomograph (CT). The injection of radiopaque dye through the central venous catheter confirmed spillage into the mediastinum on the chest CT. Right chest tube was inserted. The patient's condition dramatically improved after chest tube insertion. (Korean J Anesthesiol 2002; 43: 525~530)

기혼 중년남성의 직무 및 가족 스트레스와 자살구상

강모성,전영주,손태홍 한국가족관계학회 2008 한국가족관계학회지 Vol.13 No.1

Recently, there has been tremendous increase of suicide among the middle-aged men in Korea. The purpose of this study is to examine the status of job stress, family stress and suicidal ideation perceived by middle-aged married men as well as to investigate the relationships between these variables. For this study, 233 men aged 40~59, who reside at Busan and work at diverse industries, were selected. They filled out self-administrated questionnaires. The major findings of this study suggest several implications associated with suicidal ideation. First, higher position in socioeconomic status indexed by education, income, and job contributed to reduce suicidal ideation among the middle-aged married men. Especially education had consistently suppressed pressure of suicidal ideation. This result implies that education is able to promote cognitive flexibility to diffuse suicidal ideation. Second, family stress played a key role to increase suicidal ideation. Family stress originated from unstable adjustment to job identity and consistent conjugal conflicts were the most strongly associated with suicidal ideation among the middle-aged men. This finding suggests that differential levels of suicidal ideation tend to be determined by stable self-identity based on solid integration into job and family structure rather than inherent temperament and vulnerability to distress. Meanwhile, work-related stress was not a significant determinant in suicidal ideation. This result indicates that, for the middle-aged men, job-related stressors are not perceived as distress, but a possible challenge to maintain their self-esteem. Overall findings lend support to Durkheim's status integration hypothesis. Some implications associated with this hypothesis are discussed. To help reducing suicidal ideation among the middle-age married men, family counseling and family education programs ought to be implemented. Our study suggests that underlying theme of these programs put emphasis on sharing family support responsibility, diversifying lifestyles to participate all family members, and creating a family-friendly job environment.

뇌종양 환자의 제왕절개술을 위한 전신마취 : 증례 보고 A case report

이헌근,전세현,손주태,신일우,정영균 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.4

A 28-year-old primigravida at 33 weeks gestation was referred to our hospital because of aggravation of seizures which occurred intermittently for the past 2 years. A brain magnetic resonance imaging scan taken at 33 weeks gestation showed a large brain tumor (7 × 5 × 4 cm) in the left high frontal lobe. She had a cesarean section under general anesthesia at 38 weeks and 1 day gestation. General anesthesia was induced with thiopental 250 mg, succinyleholine 75 mg and lidocaine 60 mg after a vecuronium 0.8 mg intravenous injection. The hyperventilation and mannitol used to reduce increased intracranial pressure (ICP) in this patient may be harmful and detrimental to the fetus before delivery. Achieving both ICP control and fetal well being at the same time during a cesarean section can be challenging to anesthesiologists. We report the anesthetic management of a cesarean section in a patient with a large brain tumor. (Korean J Anesthesiol 2002; 43: 515~519)

산국의 수량과 유효성분에 대한 NPK의 효과

이경동,양민석,정연규,손보균,조주식,이성태,김필주 한국농화학회 2003 Applied Biological Chemistry (Appl Biol Chem) Vol.46 No.2

본 연구는 3요소(N-PO_2O_5-K_2O)처리가 산국(Chysanthemum boreale M.)의 수량과 유효성분에 미치는 효과를 조사하여 효과적인 재배시스템을 개발하고자하였다. 처리구는 무처리, NPK(250-160-160), NK(250-0-160), PK(0-160-160kg/ha)의 5처리로 설정하여 산국을 재배한 결과, 건물수량은 NPK처리구가 PK처리구에 비하여 4.0배의 증수가 있었으며, 다른 처리구보다 무기이온의 흡수율, 생육 및 수량에서 NPK처리구가 가장 우수하였다. 식용으로 많이 쓰이는 꽃의 주요 아미노산은 proline, glutamic acid과 aspartic acid이였고, 다른 처리구들에 비하여 NPK처리구가 높은 함량을 보였다. 혈압강하효과가 우수한 cumambrin A는 PK처리구에 비하여 NPK처리구가 6.2배의 증수효과가 있었다. NK처리구는 NP처리구보다 cumambrin A의함량을 높이기 위해서는 인산의 시용보다 칼리의 시용이 더 요구되며, 야외포장에서의 인산과 칼리의 적정 시비량의 설정이 필요하다고 판단된다. To establish the fertilization condition to increase the productivity of Chrysanthemum boreale M. with high quality, the effects of three nutrients (N, P, K) on the yields and the effective components were investigated in the pot scale. NPK was applied by chemical fertilizers with N-P_2O_5-K_2O = 250-160-160 kg/ha as a main treatment, and NP (N-P_2O_5 = 250-160 kg/ha), NK (N-KO = 250-160 kg/ha), and PK (PO_2-KO_5 = 160-160 kg/ha) treatments were settled as comparison. Dry yields of C. boreale M. was increased significantly to 4 fold higher by nitrogen. Nitrogen increased apparently plant growth and inorganic nutrient uptake. In the flower, which is most useful and edible part as a herbal medicine, main amino acids were glutamic acid and aspartic acids, and the total content was increased significantly by three elements of application. In addition, the content of cumambrin A, which is known to have the effect of blood-pressure reduction, was increased source to 6.2 times by nitrogen higher than that in PK treatment. Potassium was more effective in biosyndiesis of cumatnbrin A than phosphorus, but the biological pathway was not clear, still.

Effect of Positive End-Expiratory Pressure on Intraocular Pressure in the Critically Ill and Mechanically Ventilated Patients

Ju Tae Sohn,Heon Young Ahn,Ji Hong Bae,Heon Keun Lee,Sang Hwy Lee,Young Kyun Chung Korean Society of Critical Care Medicine 1997 Acute and Critical Care Vol.12 No.2

BACKGOUND: The purpose of this study was to examine the effect of various levels of positive end-expiratory pressure (PEEP) on the intraocular pressure in the patients receiving positive pressure ventilation. METHODS: Twenty, critically ill sedated and hemodynamically stable patients without history of glaucoma were placed on controlled positive pressure ventilation. Measured variables included intraocular pressure (IOP), mean arterial pressure (MAP), central venous pressure (CVP), peak inspiratory pressure (PIP) and arterial blood gas analysis (ABGA), and were recorded at zero end-expiratory pressure (ZEEP), and at 5, 10, 15, 20 cmH2O PEEP, applied in random order. RESULTS: IOP increased significantly from 13+/-3 to 16+/-3 mmHg at 15 cmH2O PEEP and from 14+/-4 to 17+/-6 mmHg at 20 cmH2O PEEP. CVP increased significantly from its corresponding ZEEP measurements at all PEEP levels and from 14+/-4 cmH2O at 5 cmH2O PEEP to 21+/-4 cmH2O at 20 cmH2O PEEP. There was a positive correlation between PEEP levels and PIP or CVP but no relationship between PEEP levels and IOP was observed. CONCLUSIONS: The application of PEEP levels > or = 15 cmH2O resulted in a significant increase in the IOP of patients with normal basal ocular tonometry. This study suggests that further increase in IOP may occur in the mechanically ventilated patients with already increased IOP or normal-tension glaucoma, when higher levels of PEEP are used.

Atelectasis Due to Epistaxis Aspiration during Awake Fiberoptic Nasotracheal Intubation

Ju Tae Sohn,Sang Jung Lee,Kyung Il Hwang,Heon Keun Lee,Sang Hwy Lee,Young Kyun Chung Korean Society of Critical Care Medicine 1998 Acute and Critical Care Vol.13 No.1

Indication for fiberoptic intubation in an awake patient include almost any abnormality that may hinder the expeditious placement of an endotracheal tube during anesthetic induction. An epistaxis is the most frequent complication of nasotracheal intubation. The patient was admitted for open reduction and internal fixation due to severe mandible fracture. We experienced a case of atelectasis due to epistaxis aspiration during awake fiberoptic nasotracheal intubation in the conscious patient regionally anesthetized by both superior laryngeal nerve block and translaryngeal anesthesia, which is treated by saline irrigation, suction, active coughing and chest percussion.

혈관 평활근 Adenosine Triphosphate(ATP)-Sensitive Potassium Channel 과 마취제

손주태 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.3

고령에 발생한 대퇴 전자부 불안정 골절에 대한 일차성 고관절 반치환술

손종민,장주해,하난경,조성태,최광영 대한골절학회 2003 대한골절학회지 Vol.16 No.1

목 적 : 고령의 골 조송증이 심한 불안정 대퇴전자간 골절의 치료에 있어서 일차성 고관절 반치환술을 시행한 집단과 압박고 나사못 고정술을 시행한 집단의 결과를 비교분석하고 그 결과를 바탕으로 일차성 고관절 반치환술의 임상적 유용성을 알아보고자 한다. 대상 및 방법 : 1992년 1월부터 2000년 12월까지 가톨릭대학교 성모자애병원 정형외과에서 대퇴골 전자간부 불안정 골절 진단하에 수술을 시행 받은 환자중 1년 이상 추시가 가능하였던 93례를 대상으로 하여, 70세 이상으로 Singh's Index 3.0이하의 골 조송증이 동반된 경우 또는 동반질환이 있거나 전신상태가 불량한 경우에서 일차성 고관절 반치환술을 시행한 34례(Group Ⅰ), Group Ⅰ과 동일한 조건에서 압박고 나사못 고정술을 시행한 20례(Group Ⅱ), 70세 이상이면서 Singh's Index 4 이상인 경우에서 압박고 나사못 고정술을 시행한 39례(Group Ⅲ)를 대상으로 하여 치료 결과를 비교분석하였다. 결 과 : Group Ⅰ(n=34) 및 Group Ⅱ는 대퇴 골두 천공 4례, 불유합 10 례, 금속판 및 나사못 이완 2 례 등 19 례, Group Ⅲ는 경도의 내반고 변형 1 례, 지연유합 2 례 등 총 8 례에서 합병증을 보였다. 결 론 : 70세 이상 고령의 불안정성 대퇴 전자간 골절 환자에서 특히 골 조송증이 심한 경우, 70세 미만이지만 동반질환이 존재하거나 전신상태가 불량한 경우에서 장기간의 침상안정으로 발생할 수 있는 술후 합병증을 감소시키고 조기보행을 가능하게 할 수 있는 양극성 고관절 반 치환술이 일차적 치료법으로 제시될 수 있을 것으로 사료된다. Purpose : The purpose of this study was to evaluate the effectiveness and advantage of bipolar hemiarthroplasty in treatment of unstable femoral intertrochanteric fracture in elderly parients. Materials and Methods : We reviewed 93 patients and followed up more than one year. Group Ⅰ(n=34, Singh indexⅡ<3 with more than 70 year old) were treated by bipolar hemiarthroplasty. GroupⅡ(n=20) with same condition were treated by compression hip screw. Group Ⅲ (n=39, Singh index >4 with more than 70 year old) were treated by compression hip screw. Results : Group Ⅰ and Ⅲ patients showed satisfactory result over than good by merle D' Aubigne hip rating scale. Among Group Ⅱ(n=20), 16 cases showed under 'poor' according to dunctional scale. Complication was 1 cases in group Ⅰ, 19 cases in group Ⅱ and 8 cases in group Ⅲ. Conclusion : We suggest bipolar hemiarthroplasty as first choice of treatment for osteoporotic elderly patients with unstable intertrochanteric fracture, especially who have combined medical problems or poor general condition.

Classification of the Genus Amaranthus L. based on Near-infrared spectroscopy

Tae Seong Kim,In Soon Kim,Yong Ho Lee,Sun Hee Hong,Chang Seok Kim,Soo In Sohn,Young Ju Oh 한국잡초학회 2019 한국잡초학회 별책(학술대회 초록집) Vol.39 No.1