• Journal of Trauma and Injury
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• 제35권1호
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• pp.56-60
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• 2022

The most common cause of foot drop is lumbar degenerative disc herniation, particularly at L4/5. We present a rare case of spinal cord injury accompanied by a thoracolumbar lesion that presented with bilateral foot drop. A 69-year-old male patient presented with sudden-onset severe bilateral leg pain and bilateral foot drop. Radiologic findings revealed T12 spondylitis compressing the conus medullaris. He had undergone vertebroplasty for a T12 compression fracture after a fall 6 months before. A physical examination showed bilateral foot drop, paresthesia of both L5 dermatomes, increased deep tendon reflex, and a positive Babinski sign. An acute bilateral L5 root lesion and a conus medullaris lesion were suspected based on electromyography. A surgical procedure was done for decompression and reconstruction. After the operation, bilateral lower extremity muscle strength recovered to a good grade from the trace grade, and the patient could walk without a cane. The current case is a very rare report of bilateral foot drop associated with T12 infectious spondylitis after vertebroplasty. It is essential to keep in mind that lesions of the thoracolumbar junction can cause atypical neurological symptoms. Furthermore, understanding the conus medullaris and nerve root anatomy at the T12-L1 level will be helpful for treating patients with atypical neurological symptoms.

• 농업과학연구
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• 제31권2호
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• pp.87-96
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• 2004

This study concentrates on the trail of the CNU(Chungnam National University) forest. The amount of use and the pattern of damage are considered, as well as the extent of environmental damage. Finally, some managerial strategies are proposed in connection with sustainable maintenance. The trail of the university forest is composed of three sections; one is the neighborhood park and the Institute of Information Technology/Communications, the second is the Institute of Information Technology/Communications and the Dormitory, and the third section is the Dormitory and the Foreign prof's Apt. The total length of the trail is 2.6km. The daily amount of use is 1,269 visitors per day. The amount of using increased three times the amount of that in 1998. This study shows the pattern of damage of the trail in the order of root-exposure, widening, rock-exposure, deepening and the divergence in the frequency of occurrence of all these factors. Environmental damage is also graded thus: grade 3 is 27.4m, grade 4 is 0.8m, grade 5 is 1.5m, and grade 6 is 0.2m. Accordingly, some managerial strategies were proposed in connection with the sustainable trail maintenance.

• 한국약용작물학회지
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• 제15권4호
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• pp.291-295
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• 2007

본 연구는 비누수 해가림 재배가 인삼 생육 및 품질에 미치는 영향을 구명하기 위하여 인삼의 차광재료를 비누수 해가림과 차광망을 이용하여 실험하였던 바, 얻어진 결과를 요약하면 다음과 같다. 1. 차광재료에 따른 맑은 날의 광량은 비누수해가림이 차광망에 비하여 낮은 경향이었고, 온도는 비누수해가림이 차광망에 비하여 $3{\sim}5^{\circ}C$ 낮게 나타났다. 2. 차광재료에 따른 3, 4, 5년근 인삼의 생존본수는 비누수해가림에 비하여 차광망이 낮게 나타났다. 3. 차광재료에 따른 인삼의 경태는 비누수해가림에서 증가하였고, 생근중도 비누수해가림이 차광망에 비하여 3년근에서는 5.0 g, 4년근에서는 10 g, 5년근에서는 8 g 높았다. 4. 차광재료에 따른 3, 4, 5년근 모두 수삼의 수량은 비누수해가림이 차광망보다 훨씬 높게 나타났다. 5. 차광재료별 3, 4, 5년근 수삼의 크기는 비누수해가림이 차광망에 비하여 대편이 많이 분포하였으며, 진세노사이드 함량도 비누수해가림이 차광망에 비해서 높았다

• Journal of Chest Surgery
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• 제40권11호
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• pp.727-732
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• 2007

서론: 대동맥 판막 치환술 또는 벤탈수술 대상이 되는 환자들에서 다양한 정도의 승모판막 폐쇄부전이 동반될 수 있다. 대동맥 판막질환과 동반된 승모판막 폐쇄부전의 교정여부를 결정하기 위해서는 폐쇄부전의 원인과 정도, 추가 수술의 위험성을 고려해야 한다. 최근에는 수술시간과 심장 절개를 최소화하는 대동맥 근부를 통한 다양한 승모판막 수술이 시도되고 있다. 본원에서는 대동맥 판막 치환술 또는 벤탈 수술과 함께 기질적 변화가 심하지 않은 승모판막 폐쇄부전증에 대해 효과적인 대동맥 근부를 통한 승모판막 교련 성형술을 시행하였기에 보고한다. 대상 및 방법: 2002년 6월부터 2005년 6월까지 20명의 환자에서 대동맥 판막 치환술(14명), 벤탈(Bentall) 수술(6명)과 함께 대동맥을 통한 승모판막 교련 성형술을 시행하였다. 모든 환자에서 승모판막은 기질적 변화가 심하지 않은 중등도(grade 2) 이하의 부전증을 보였다. 술 전 승모판막 폐쇄부전의 진단은 경흉부 심초음파와 수술 중 경 식도 심초음파로 확진하였으며 수술 후 경흉부 심초음파로 추적 관찰하였다. 모든 환자에서 대동맥판막엽을 제거한 후 대동맥 근부를 통해 한 번의 매트리스 봉합으로 승모판막 교련 성형술을 시행하였다. 결과: 환자들의 평균 나이는 56.2세였고 65% (13명)가 남자였다. 수술 전 승모판막 폐쇄부전 정도는 경도(mild, 1)가 9 (45%)명, 경도와 중등도 사이(mild to moderate)가 8 (40%)명, 그리고 중등 도(moderate, grade 2)가 3 (9%)명이었다. 수술 사망은 없었고 평균 추적기간은 28개월이었다. 경흉부 심초음파로 추적한 승모판막 폐쇄부전은 모든 예에서 호전되었으며(p=0.002) 심실 구출률은 75%에서 호전을 보였다(p=0.005). 평균 대동맥 차단시간은 대동맥 판막 치환술을 받은 환자들에서는 $62.1{\pm}13.9분$, 벤탈 수술을 받은 환자에서는 $137.5{\pm}7.2$분이었다. 결론: 중등도 이하의 승모판막 폐쇄부전을 갖는 선택적인 환자에서 대동맥 판막 치환술 또는 벤탈 수술 시에 대동맥을 통한 승모판막 교련 성형술은 대동맥 차단시간의 증가나 추가의 절개 없이 시행될 수 있는 비교적 간단하고 효과적인 방법이라고 생각한다.

• 대한관절경학회지
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• 제16권2호
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• pp.114-120
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• 2012

목적: 내측 반월상 연골 후각 부착부 봉합술 시 시행하는 표층 내측측부인대 유리술의 유용성 및 안전성에 대해 연구하고자 하였다. 대상 및 방법: 2006년 4월부터 2010년 9월까지 표층 내측측부인대 유리술을 시행하지 않고 내측 반월상 연골 후각 부착부 봉합술을 시행한 환자 20명(PM군)과 표층 내측측부인대 유리술을 시행하고 봉합술을 시행한 시행한 환자 32명(RM군)을 대상으로 하였다. 동반 수술을 시행한 환자는 제외하였다. 안정성 검사로 술 후 3개월, 1년 추시 시 압통, 주관적 불안정성 및 외반 부하 검사를 시행하였고, 유용성 검사로 압박대 사용시간을 비교하였고, 임상 결과는 Lysholm 점수와 International Knee Documentation Committee (IKDC) 점수로 평가하였다. 결과: 전례에서 표층 내측측부인대 유리술과 관련하여 임상적으로 의미 있는 합병증은 없었다. 술 후 3개월 및 1년 추시 관찰 시 압통, 주관적 불안정성에서 음성을 보였으며, 5명의 환자에서 외반 부하 검사상 grade I의 불안정성을 보였다. 압박대 사용 시간은 PM군 $53.5{\pm}13.6$분, RM군 $41.3{\pm}12.7$분으로 두 군간 차이를 보였다(P<0.05). 술 후 임상결과는 PM군은 술 전 Lysholm 점수 $56.8{\pm}5.5$에서 술 후 $85.1{\pm}5.8$로(P<0.001), 술 전 IKDC 점수 $42.6{\pm}6.3$에서 술 후 $77.2{\pm}6.3$로(P<0.001), RM군은 술 전 Lysholm 점수 $56.2{\pm}5.4$에서 술 후 $87.4{\pm}3.9$로(P<0.001), 술 전 IKDC 점수 $42.7{\pm}5.7$에서 술 후 $89.6{\pm}2.9$로(P<0.001) 개선되었다. 두 군간 수술 전, 후의 Lysholm 점수, IKDC 점수 차이는 없었다(P>0.05). 결론: 표층 내측측부인대 유리술은 슬관절 내측 수술 시 시야 확보에 유리하며, 수술 시간을 줄일 수 있고, 임상적 의미있는 잔존 불안정성을 남기지 않아 내측 반월상 연골 후각 부착부 봉합술 시 유용한 것으로 사료된다.

• 한국임상수의학회지
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• 제25권2호
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• pp.119-121
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• 2008

A 2-year-old, intact and a 10-year-old, castrated male Maltese were referred for treatment of progressive tooth mobility and periodontal disease. The first case was presented with tooth mobility of mandibular incisors (Grade 2-3) and the second case was also presented with tooth mobility of maxillary incisors (Grade 2-3) by periodontal disease. The treatment plan included supragingival scaling, closed root planing, subgingival curettage and removable-fixed periodontal splinting of the mandibular (case 1) and maxillary (case 2) incisors to stabilize them. Three months after therapy, oral examinations were performed for evaluation of success of therapy. In both cases, oral malodor, periodontal disease and tooth mobility were resolved and periodontal splints were remained rigidly.

• 한국염색가공학회지
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• 제26권3호
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• pp.263-271
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• 2014

The purpose of this study is to investigate the dyeability of silk fabrics with Humulus japonicus (Hwansam) extract which is a kind of weeds that grows wild in the suburbs. In the research, the general extract method was conducted with the extract from fresh herb of root-removed Humulus japonicus while we investigated the optimal dyeing conditions and dyeability depending on the changes of the kind of mordants, methods and temperature. The functional properties such as antibacterial activities, deodorization and UV protection were also reviewed. The ideal output, as a result, was shown at 100% of dye concentration, $90^{\circ}C$ of dyeing temperature and 40 minutes of dyeing time while in terms of dye uptake depending on the kind of mordants and methods, it was found that among four mordants of $SnCl_2$, $AlK(SO_4)_2$, $CuSO_4$, and $FeSO_4$ post-mordanting with $FeSO_4$ showed the best result. Color fastness to washing, dry cleaning and rubbing was found strong at grade 4-5 and the grade to light was as good as 3 while to perspiration was good at 4-5 as well. In aspects of functional properties, it showed excellent results of 99% deodorization rate, 98% UV protection rate and 99.9% bacterial reduction against Staphylococcus aureus.

• 대한금속재료학회지
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• 제56권11호
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• pp.796-804
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• 2018

The Charpy impact toughness of the heat affected zone (HAZ) of electro gas welded 390 MPa yield strength grade steel, manufactured by a thermo mechanically controlled process, was investigated. The effects of added Nb on the toughness of the steel and the factors influencing scatter in toughness are discussed in the present work. It was observed that adding Nb to the steel led to the deterioration of HAZ toughness. The presence of soluble Nb in the HAZ increased its hardenability and resulted in a larger amount of low toughness bainitic microstructure. Microstructural observations in the notch root area revealed the significant role of different microstructures in the area. In the presence of a larger amount of bainitic microstructures, the HAZ exhibited a lower Charpy toughness with a larger scatter in toughness. A softened zone with a lower hardness than the base metal was formed in the HAZ. However, theoretical analysis revealed that the presence of the zone might not be a problem in a real welded joint because of the plastic restraint effect enforced by surrounding materials.

• The Journal of Asian Finance, Economics and Business
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• 제9권6호
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• pp.53-67
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• 2022

The study's goal is to look at the factors that influence people's willingness to whistleblow in the Malaysian public sector by applying two elements from the Moral Intensity Theory: the magnitude of consequences and societal consensus with professional commitment as an additional variable. The cross-sectional study used primary data collection through questionnaires adopted from previous studies. The survey questionnaires were distributed to target respondents from 27 ministries in Malaysian public sectors selected based on their grade positions in the departments ranging from Grade 29 and above. The findings revealed that societal consensus and professional commitments significantly impact the intention to whistleblow. The findings imply that closed people's opinions may have certain persuasive elements that influence the act of whistleblowing as a moral and ethical activity, thereby increasing their whistleblowing intention. The results also suggest that when individuals are more committed to their career and organization, they will act ethically and under the professional norm, hence, they will be inclined to whistleblow. On the other hand, the magnitude of consequences suggested an insignificant relationship with the intention to whistleblow. The results could facilitate the government in curbing the whistleblowing issue by defining its root before the implementation of necessary policies.

• Journal of Welding and Joining
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• 제14권1호
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• pp.68-74
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• 1996

The microstructure of HAZ and the mechanical properties in weldments such as hardness and toughness were studied for mild steel and AH36 grade TMCP steel, as increasing heat input with electrogas welding process. The results of this study can be summarized as follow: 1) In the HAZ of mild steel, the width of coarse grained zone was larger than that of the nomalized zone, however in the case of TMCP steel, the nomalized zone was wider than the coarse grained zone. 2) The grain size of HAZ become coarse with increasing heat input. And at the same heat input, the grain size of TMCP steel was more coarser than that of mild steel. 3) According to the change of heat input, the deviation of hardness values was not significant, and the maximum values of hardness was not in HAZ but in the weld metal. And the hardness values in root part was higher than in face part. 4) Even though the HAZ grain size of mild steel was larger than that of TMCP steel, the impact values for mild steel was higher than those for TMCP steel, and the impact values in face part was higher than those in root part.