• 생물정신의학
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• 제27권2호
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• pp.64-73
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• 2020

Suicidality is the most serious complication of mood disorders and psychosis; effective treatment should reduce suicide rates. The Organization for Economic Cooperation and Development age-standardized suicide rate in Korea was 22.6 in 2018, much higher compared to other countries worldwide. As mental and psychiatric problems are the main reasons for suicide attempts, accounting for 31.6% in 2018, targeting such problems should be the focus of efforts to reduce suicide rates. However, the ability of current pharmacotherapeutic and psychotherapeutic interventions to reduce suicide rates is limited due to their delayed effects. Therefore, electroconvulsive therapy (ECT) has been proposed as an alternative treatment. This approach is effective for treating most mental disorders associated with high suicide rates, including severe depression, bipolar disorder, and intractable psychotic disorders; ECT is also effective for Parkinson's disease, which has the highest suicide rate among all disorders in Korea. The acute, long-term, and prophylactic effects of ECT on suicidality have been reported in the literature, and treatment guidelines outside of Korea recommend that ECT be used at an early stage for rapid reduction of suicide rates, as opposed to being applied as a treatment of last resort. However, only ~0.092 of every 10000 members of the Korean general population received ECT in 2018; this is much lower than the average rate worldwide, of 2.2 per 10000. Elimination of obstacles to the use of ECT, early crisis intervention involving administration of ECT for rapid stabilization, and maintenance ECT to prevent recurrence should reduce suicide rates.

• 대한소아치과학회지
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• 제38권1호
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• pp.62-67
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• 2011

치아의 맹출은 일반적으로 치근의 1/2~2/3이 완성(Nolla stage 7)되었을 때 임상적으로 출은(emergence)하여 치근 형성이 완성되기 전에 교합평면에 도달한다. 조기 맹출이란 맹출이 가속화되어 정상 맹출 시기 보다 이른 시기에 맹출하는 것으로, 일반적으로 정상 범주를 벗어나는 영구치의 조기 맹출은 매우 드물며 유치의 만성 치근단 주위염 등의 국소적 원인으로 인한 계승 영구치의 상방 치조골이 광범위하게 파괴되었을 때 치아의 치관이나 치근의 형성이 거의 이루어지지 않은 채 계승 영구치가 조기 맹출하는 것을 관찰할 수 있다. 또한 영구치의 조기 맹출에 영향을 미칠 수 있는 여러 전신 질환이 있는 경우에도 영구치의 조기 맹출이 가능하다. 조기맹출 치아의 임상 소견으로는 심한 동요도와 저작 시 동통, 법랑질의 저석회화, 치아의 편향과 변위, 회전 등이 있으며, 방사선학적 소견으로는 미발육된 치근과 골지지의 부족 등이 있다. 조기 맹출 영구치의 발생 가능한 합병증으로는 만성적인 외상과 동통 및 부종이 있을 수 있고, 맹출 순서의 변경과 인접치의 이동으로 인한 소구치 매복율의 증가, 치아의 변위와 회전이 야기될 수 있으며, 영구치의 탈락도 있을 수 있다. 따라서 증상이 있는 조기 맹출 영구치의 경우 공간 유지 및 영구치 고정과 주위 조직의 회복, 치근 발육의 유도를 위해 적절한 처치가 필요하다. 전신 질환이 없는 만7세 여환이 상악 양쪽 제 1소구치의 심한 동요도와 동통을 주소로 치과 의원에서 의뢰되었다. 임상 및 방사선 검사상 치근 형성이 거의 없이 양측 상악 제 1소구치들이 조기 맹출되어 심한 동요도와 부종 및 저작 시동통을 나타내어 상악 제 2유구치에 교정용 band와 spur를 이용한 구내 고정식 장치를 제작하여 14개월 간 장착하여 조기 맹출한 치아들을 안정화시키고 성공적으로 치근 형성을 도모하였기에 이를 보고하는 바이다.

• 대한두개안면성형외과학회지
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• 제17권1호
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• pp.28-30
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• 2016

Major maxillofacial bone injury itself can be life threatening from both cardiovascular point of view, as well as airway obstruction. Significant hemorrhage from facial fracture is an uncommon occurrence, and there is little in the literature to guide the management of these patients. We report a 73-year-old male driver who was transported to our hospital after a motor vehicle collision. The patient was hypotensive and tachycardic at presentation and required active fluid resuscitation and transfusion. The patient was intubated to protect the airway. All external attempts to control the bleeding, from packing to fracture reduction, were unsuccessful. Emergency angiogram revealed the bleeding to originate from terminal branches of the sphenopalatine artery, which were embolized. This was associated with cessation of bleeding and stabilization of vital signs. Despite the age and severity of injury, the patient recovered well and was discharged home at 3 months with full employment. In facial trauma patients with intractable bleeding, transcatheter arterial embolization should be considered early in the course of management to decrease mortality rate.

• Archives of Plastic Surgery
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• 제44권3호
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• pp.188-193
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• 2017

Alveolar cleft is a tornado-shaped bone defect in the maxillary arch. The treatment goals for alveolar cleft are stabilization and provision of bone continuity to the maxillary arch, permitting support for tooth eruption, eliminating oronasal fistulas, providing an improved esthetic result, and improving speech. Treatment protocols vary in terms of the operative time, surgical techniques, and graft materials. Early approaches including boneless bone grafting (gingivoperiosteoplasty) and primary bone graft fell into disfavor because they impaired facial growth, and they remain controversial. Secondary bone graft (SBG) is not the most perfect method, but long-term follow-up has shown that the graft is absorbed to a lesser extent, does not impede facial growth, and supports other teeth. Accordingly, SBG in the mixed dentition phase (6-11 years) has become the preferred method of treatment. The most commonly used graft material is cancellous bone from the iliac crest. Recently, many researchers have investigated the use of allogeneic bone, artificial bone, and recombinant human bone morphogenetic protein, along with growth factors because of their ability to decrease donor-site morbidity. Further investigations of bone substitutes and additives will continue to be needed to increase their effectiveness and to reduce complications.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.357_358
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• 2009

According to the 4th BPE(Basic Plan for long-term Electricity Supply and Demand), Electricity demand of Jeju island in 2012 will be reached to 682MW. Jeju island will be faced with severe shortage of electricty, also needed to find transport route to supply green energy which will be made from "Carbon free island" energy policy toward land at that time. For that reason, The plan which construct 400MW size HVDC connection line was decided for potential supply stabilization and transportation of green energy. KEPCO organized special construction office not only to observe the successful project completion which aims 2011 December but also to build up professional manpower. KEPCO is putting spur to the HVDC project these days. Construction site of converter stations has been already confirmed and contracts of cable, converter have done as per turn-key early this year. On this report, we would like to discuss about project scheme, main characteristics of system, and the furture progress plan of "Jindo~Jeju HVDC construction project expecially converter station part" which is being pushed by KEPCO.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.261-261
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• 2017

This study was carried out to provide basic data for spreading rice direct seeding by inducing stabilization of seedlings, yield and quality according to sowing times in rice direct seeding cultivation. In 2016, 'Sukwang' was seeded 3 times by 10 days interval on May. 10, 20, 30 and 6kg/10ha of seeding rate respectively in Iksan. In summary, the number of rice seedling establishment was higher than the optimum seedling establishment level at all sowing periods and the seeding rate was better as the sowing period was delayed. Weed development by sowing was the highest at early sowing, May 10, and decreased at late sowing. Heading dates were delayed by 3days for sowing on May 10, 7days for sowing on May 20, and 11 days on sowing on May 30. Rice yield increased with the delay sowing time and compared to the transplanting. It was 84% in sowing on May 10, 94% in sowing on May 20, and 99% in sowing on May 30. In addition, head rice ratio and head rice yield increased according to delayed of seedling.

• Journal of Korean Neurosurgical Society
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• 제54권5호
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• pp.426-430
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• 2013

The prognosis of solitary plasmacytoma varies greatly, with some patients recovering after surgical removal or local fractional radiation therapy, and others progressing to multiple myeloma years later. Primary detection of progression to multiple myeloma is important in the treatment of solitary plasmacytoma. There have been several analyses of the risk factors involved in the early progression to multiple myeloma. We describe one case of solitary plasmacytoma of the lumbar vertebra that was treated with surgical decompression with stabilization and additional radiotherapy. The patient had no factors associated with rapid progression to multiple myeloma such as age, size, immunologic results, pathological findings, and serum free light chain ratio at the time of diagnosis. However, his condition progressed to multiple myeloma less than two months after the initial diagnosis of solitary plasmacytoma. We suggest that surgeons should be vigilant in watching for rapid progression to multiple myeloma even in case that the patient with solitary plasmacytoma has no risk factors for rapid progression to multiple myeloma.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2005년도 추계종합학술대회
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• pp.906-910
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• 2005

본 논문에서는 이미 표준화 된 휘도에서 고 휘도를 향상을 시키기 위해서 휘도 향상에 직접영향을 미치는 실험모델을 제안 하였다. 국산램프(K社)와 일본램프의 제품에서 ${\phi}$2.6램프보다 ${\phi}$l.6램프을 사용함으로 세경화에 따라 200[cd/m$^2$]정도 휘도가 향상됨을 알 수 있었다. 기존에 BLU상에서는 LCD Panel을 장착하면 그 휘도는 초기램프 보다 약 1/100 - 1/200정도로 낮아진다. 시트 Variation에 따른 비교분석을 한 결과 시트 구성인 'LCP + DIFFUSER + BEF II(H) + BEFII(V)' 구성이 가장 고휘도 분포가 나타나는 것을 알 수 있으며, 고 휘도 구현을 하기위한 효율적인 구성 기준을 제안하였다.

• Environmental Analysis Health and Toxicology
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• 제23권4호
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• pp.307-314
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• 2008

폐기물 매립지의 조기 안전화를 위해 여러 가지 Chemical Oxidation법이 개발되어 왔지만, 이 방법을 폐기물 매립지에 적용하고 난 후에 생성될 수 있는 부산물들이 주변 환경에 영향을 줄 가능성이 있다. 그래서, 이 방법을 실제 매립지에 적용하기 전에, 일본 키타큐슈에 있는 소각재가 묻혀 있는 모형 매립지에 다섯 가지 조건 -A, 콤포스트 추가; B, 과산화수소수 살수; 과산화수소수+공기주입; D, 공기주입; E, control- 을 적용하여 그 효능을 테스트하였고, 이 매립지에서 이 방법들의 적용 후에 생성되는 침출수의 급성 독성을 세 가지 microbiotests를 이용하여 monitoring하였다. 테스트 기간 중, 침출수의 수질은 개선되었고, 그 급성 독성은 점차적으로 감소하였다. 과산화수소수와 공기의 조합을 적용한 후 생성된 침출수의 급성 독성이 가장 빨리 감소하여 폐기물 매립지의 조기 안정화에 도움을 주었다. 이러한 독성 시험 결과는 몇 가지 화학적 parameters와 상관성이 있었고 여기에 사용된 급성 독성 테스트법은, 매립지 안정화를 위한 Chemical Oxidation법의 적용 후, 침출수 수질을 monitoring하는데 적절하였다. 그러므로 폐기물 매립지의 조기 폐지 기준에 독성 시험의 포함을 고려해 볼 필요가 있다고 생각한다.

• 한국조경학회지
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• 제23권2호
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• pp.113-123
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• 1995

This study was conducted to find out appropriate rates of seed mixture of both native and foreign plants in order for stabilization of early afforestation and proper vegetation on road slope. The results are summarized as follows: 1. Characteristics of germination : After seeding, 2 weeks for both Lespedeza bicolor and Lespedeza cuneata, and 4 weeks for both Arundinella hirta and Zoysia japonica were needed for vigorous germination, and 1-4 wee17s for 3 cool-season grasses were spent for gradual germination. 2. Plant height : There was no difference between Lespedeza cuneata and Lespedeza bicolor in plant height by 7 treatments. As mixture rates of cool-season grasses were lowered, plant height of Arundinella hirta became longer. Descending order of co81-season grasses for plant height was Tall fescue, Perennial ryegrass and Creeping redfescue. 3. Number of tillers : The number of tillers tended to increase in the experimental plots where competition was low. 4 Ground cover rate : Ground cover rate was the highest in Mixture IV (96.7%) and was fluctuated from 13.3% on Sept. 13 to 45% on Nev. 3 in Mixture III. Descending order of gronud cover rates in 7 treaments was Mixture IV, Mixture III. Mixture II, Mixture Ⅶ, Mixture V, Mixture Ⅵ, Mixture I, and Mixtur III when measured on Oct. 13 5. Visual assessment: High preferences were observed on Mixture IV and Ⅶ In sun the best seed mixtures were Mixture IV and Ⅶ. It meant that (1) either mixture of 70% the native plants with 30% cool-season graaes or (2) mixture of 80% the native plants with 20% cool-season glasses was best for this study.