• 한국작물학회지
• /
• 제32권1호
• /
• pp.10-15
• /
• 1987

Burley 21을 공시품종으로 하여 건조실은 파이프 비닐하우스를 이용하였고, 시험 I 은 차광율을 10∼90%까지 20%씩 차이를 두어서 5 처리를 하였으며, 시험 II는 흑색차광막, 차광강과 5가지 유색비닐 등으로 차광재료를 달리하여 잎담배 건조시 차광효과와 알맞은 차광재료를 달리하여 잎담배 건조시 차광효과와 알맞은 차광재료를 밝히기 위하여 본 실험을 수행하였던 바 결과를 요약하면 다음과 같다. 1. 차광량이 않을 수록 온도가 낮고 습도는 높은 경향이었다. 2. 노변 전까지의 차광효과는 엽중탈수속도를 지연시키는데 있었다. 3. 급건엽발생은 차광량이 많을 수록 적었으나 차광 70％ 이상에서는 큰 차이가 없었다. 4. 품질 및 물리성은 50％ 이하의 차광구에서 불량하였으나, 그 이상에서는 큰 차이가 없었다. 5. 건조시 차광량의 하한선은 70％ 본다. 6. 유색비닐 중 주황색, 백색 및 자주색비닐은 흑색차광막과 충분한 대비효과를 가지고 있다. 그러나 백색비닐은 광에 의한 내구성이 가장 약하였다. 7. 가시광선의 광질 차이는 건조에 거의 영향을 미치지 않았다. 8. 흑색계통의 차광재료는 차광량은 많으나 광energy를 흡수하여 하우스 내 온도를 높이므로, 내구성이 크고 광 반재형 차광재료의 개발이 요구되었다.

• Journal of Yeungnam Medical Science
• /
• 제23권2호
• /
• pp.247-251
• /
• 2006

Bezoars are collections or concretions of indigestible foreign material that accumulate and coalesce in the gastrointestinal tract; they usually occur in patients who have undergone gastric surgery and have delayed gastric emptying. Treatment options include dissolution with enzymes, endoscopic fragmentation with removal or aspiration, and surgery. Recently, the efficacy of nasogastric lavage or endoscopic infusion of Coca-Cola for the dissolution of phytobezoar have been reported. We report a case of phytobezoar successfully treated by oral administration and endoscopic injection of Coca-Cola. A 62-year-old woman was referred to Yeungnam University Hospital for epigastric pain. Upper gastrointestinal endoscopy revealed one very large, dark-greenish, solid bezoar in the stomach with gastric ulcer and duodenal bulb deformity. We performed endoscopic injection of Coca-Cola into the bezoar. The patient was instructed to drink four liters of Coca-Cola per day. At endoscopy two days later, the phytobezoar was easily broken into pieces. At endoscopy on the $11^{th}$ day of admission, the phytobezoar was decreased in size and removed by endoscopic fragmentation with a polypectomy snare. At follow up endoscopy after 13 days, the bezoar was completely dissolved.

• Journal of Korean Neurosurgical Society
• /
• 제29권12호
• /
• pp.1577-1583
• /
• 2000

Objectives : Among the various types of minimally invasive spine surgeries, thoracoscopic surgery is becoming more widely accepted and increasingly utilized. This report delineates our clinical experience using thoracoscopy to resect herniated thoracic discs in 16 patients who suffered from myelopathy or intolerable radiculopathy. Patients and Methods : Between Mar. 1997 and Sep. 1999, 16 consecutive patients underwent thoracoscopic discectomy for treatment of herniated thoracic discs. There were 12 men and 4 women(mean age 43.5 years ; range 18-61 years). Eleven patients presented with myelopathic signs and symptoms from spinal cord compression and 5 patients had incapacitating thoracic radicular pain without myelopathy. The surgical level was varied between T3 and T12. The pathology of specimen were 11 hard discs and 5 soft discs herniations. Thoracoscopic techniques were performed with long narrow spine instruments and high speed drill through 3 or 4 ports under one lung ventilated general anesthesia. During the operation three patients were converted to open thoracotomy due to intolerable one lung ventilation, excessive bleeding and inadequate operation field. The mean operation time was 264min.(range : 100-420min.), and postoperative mean admission period was 11 days. Results : Clinical and neurological outcomes were good in all patients(mean follow-up period 20 months). Among the eleven myelopathic patients, 8 improved neurologically, and 3 stabilized. Among the five radiculopathic patients, 4 recovered completely and no patient had worsened. Postoperative complications were pleural effusion in one case, intercostal neuralgia in one, delayed hemopneumothorax in one, prolonged air leakage in one and pneumonia in one case. Conclusions : Thoracoscopic discectomy needs a steep learning curve to be familiar to anatomical space and handling of endoscopic instruments. However, it is technically feasible and can be effectively performed with acceptable results.

• Journal of Microbiology and Biotechnology
• /
• 제16권2호
• /
• pp.312-317
• /
• 2006

The chromosomal sprD gene encoding Streptomyces griseus protease D (SGPD), a chymotrypsin-like protease, was disrupted in Streptomyces griseus by insertion of the neomysin-resistance gene. The production of chymotrypsin activity of sprD disruptant was not completely abolished, but delayed by 24 h, compared with that of wild-type strain. The aerial mycelial formation of sprD disruptant was retarded, and specifically the formation of spores was not observed in the central region of colonies. However, normal morphological development into spores was observed in the marginal region of colonies. In addition, the production of yellow pigment that might be dependent on A-factor was also decreased in the sprD disruptant, compared with that of the wild-type strain. Introduction of the sprD gene, which was placed on a high copy-numbered plasmid into S. griseus ${\Delta}sprD$, partially restored the ability of morphological development, and a significant level of sporulation was observed. When the overexpression vector for sprD, pWHM3-D, was introduced in S. griseus, there was no significant change in the chymotrypsin activity or colonial morphology, in contrast to Streptomyces lividans, indicating the presence of a tight regulation system for the overexpression of the sprD gene in S. griseus.

• The Plant Pathology Journal
• /
• 제36권2호
• /
• pp.133-147
• /
• 2020

Hexanal, a C-6 aldehyde has been implicated to have antimicrobial properties. Hence, this study was conducted to determine the antifungal activities of hexanal vapor against major postharvest pathogens of banana viz., Colletotrichum gloeosporioides and Lasiodiplodia theobromae. The pathogens were cultured in vitro and exposed to hexanal vapor at 600, 800, 1,000 and 1,200 ppm. Mycelial growth of both fungal pathogens were inhibited completely at 800 ppm and the incidence of anthracnose and stem-end rot diseases reduced by 75.2% and 80.2%, respectively. The activities of peroxidase, polyphenol oxidase, phenylalanine ammonia-lyase and glucanase had transiently increased in hexanal vapor treated banana by 5 to 7 days and declined thereafter. Postharvest treatment of banana with hexanal vapor resulted in phospholipase D inhibition and also resulted in cell wall thickening of the treated fruit, which impeded the penetration of the pathogenic spores. This was further confirmed by scanning electron micrographs. The defense-related protein intermediaries had increased in hexanal vapor treated banana fruit, which suggests induced resistance against C. gloeosporioides and L. theobromae, via., the phenylpropanoid pathway which plays a significant role in hindering the pathogen quiescence. Delayed ripening due to inhibition of phospholipase D enzyme, inhibition of mycelial growth and induced systemic resistance by defense enzymes collectively contributed to the postharvest disease reduction and extended shelf life of fruit.

• Archives of Plastic Surgery
• /
• 제36권1호
• /
• pp.113-117
• /
• 2009

Purpose: Although Hydrofluoric acid(HF) is not a strong acid when compared to other hydrogen halides, it is a feared corrosive and is particularly dangerous at higher concentrations. HF burns are characterized by symptoms, often delayed and localized with diluted HF solutions, to include erythema, edema and severe pain. Pain, a well known symptom following exposure to calcium binding. And, EMLA$^{(R)}$ cream is a topical formulation based upon the eutectic mixture of lidocaine and prilocaine and is used in clinical settings to provide pain relief undergoing superficial surgical procedures. The aim of this study is to evaluate effects of EMLA$^{(R)}$ cream, pain - control dressing on the treatment for HF injury wound. Methods: From June 2007 to June 2008, this study was carried out with 10 patients who had HF partial thickness burns. We were applied topically EMLA$^{(R)}$ cream to injured wound with vaseline gauze and 10% calcium gluconate wet gauze dressings. As a principle, in the emergency treatment, partial or complete removal of the bullae along with copious washing with normal saline was done, depending on the degree of HF invasion of the distal digital extremities. The effect of dressing was investigated by visual analogue pain scale. Results: We therefore reviewed 10 cases of HF - induced pain and pain relief treatment principle. The 10 cases who came to the hospital nearly immediately after the injury healed completely without sequelae and EMLA$^{(R)}$ related complications. Conclusion: Proper initial treatment of HF burns are important, if not promptly recognized and properly treated, for produce serious injury. Topical EMLA$^{(R)}$ cream remain a powerful, new advancement for minimizing HF - related pain during dressing procedures. When used appropriately, topical EMLA$^{(R)}$ cream can provide a safe and effective alternative to other forms of HF - pain control treatment.

• Clinics in Shoulder and Elbow
• /
• 제18권1호
• /
• pp.2-7
• /
• 2015

Background: The purpose of this study was to evaluate the usefulness and safety of the anterosuperior deltoid splitting approach for fixation of displaced proximal humeral fractures by analyzing the surgical outcomes. Methods: Twenty-three patients who could be followed-up for at least 8 months after the treatment of displaced proximal humeral fractures through the anterosuperior deltoid splitting approach were enrolled. We evaluated the reduction of the fractures and surgery-related complications at the last follow-up using X-ray results and clinical outcomes comprising the University of California at Los Angeles (UCLA) scoring system and the Korean Shoulder Society (KSS) score. Results: At the last follow-up of patients treated using the anterosuperior deltoid splitting approach for internal fixation of proximal humeral fractures, we found 22 cases (95.6%) of bone union, a mean UCLA score of 28.3 (range, 15 to 34) and a mean KSS score of 82.1 (range, 67 to 95). Various surgery-related complications were noted; a case of varus malunion after fracture displacement, a case of nonunion, a case of delayed union, two cases of impingement, and a case of partial axillary nerve injury, which recovered completely through the follow-up. Conclusions: Plate fixation using the anterosuperior deltoid splitting approach could be another reliable option for treating displaced proximal humeral fractures.

• Archives of Reconstructive Microsurgery
• /
• 제11권2호
• /
• pp.173-178
• /
• 2002

Wound healing is the result of interaction of normal cellular and biochemical responses that restore the interrupted anatomical structure in limited period. When any response of them is impaired, it results in chronic wound. The factors that influence the wound healing process is not only limited to the fundamental disease of the individual but also the local factors, especially various growth factors secreted from the various cells involved in tissue regeneration have important role. Recent reports that the chronic wounds are depleted of these growth factors have led active studies on the alteration of local wound environment with manipulation of the growth factors and the its application in management of chronic wounds. We investigated the effect on the chronic wounds in 10 patients with various pathologic conditions to suggest the appropriate application and guideline of the indication. The chronic wounds resulting from various causes in 10 patients were treated with rhPDGF gel and good wound care. All the chronic wounds were located on the lower extremity and the average diameter was 2.5 cm. 7 patients were completely cured within 8 weeks, however the patient who received previous radiation therapy the healing was delayed to 14 weeks. Two patients with vascular ulcer were not cured with rhPDGF alone. Local application of rhPDGF has yielded complete cure of the chronic wound in 70% of the patients within 2 months. The author suggests that it would be an effective alternative treatment modality of chronic wound when it is applied with good wound care and appropriate indication.

• Journal of Chest Surgery
• /
• 제31권1호
• /
• pp.46-51
• /
• 1998

식도 천공후 수술시까지 24시간이상이 경과된 환자의 치료법은 아직도 논란이 많다. 1990년이후 연세 대학교 흉부외과학 교실에서는 식도 천공후 24시간이상 경과된 환자 10예중 전예를 일차 봉합술로 치료 하였다. 그중 4명은 인위적인 천공 이었고, 3명은 자연성 천공, 2명은 이물의 연하, 나머지 한명은 외상이 원인 이었다. 식도 천공후 수술시까지 소요된 시간은 평균 116시간 이었고 중앙값은 48시간 이었다. 봉합방법은 천공된 점막부위의 위 아래로 정상 점막이 나올때까지 식도근 절개술을 시행한 후 염증이 있는 점막부위를 변연 절제한다. 식도의 원위부 폐쇄가 있을 경우 수술대에서 식도 확장술을 시행하고 점막과 근육층을 단층 혹은 층층 봉합한다. 봉합부위 위에 늑막이나 심낭 지방을 이용하여 봉합을 강화하였다. 수술 사망은 1예에서 수술후 33일째 발생 하였는데 사망원인은 위괘양의 합병증으로 위출혈이었다. 술후 5명의 환자에서 봉합부위의 유출이 있었지만 사망한 1예를 제외하고 모두 고식적 치료로 완치할 수 있었다. 식도 천공 환자에서 치료법은 여러 가지 방법이 있겠으나 비록 수술시까지 시간이 많이 지났다하더라도 천공의 원인이 양성이고 원위부 폐쇄가 교정될 수 있다면 일차 봉합과 적절한 배농이 우선 되어야 할 것이다.

• 한국작물학회지
• /
• 제51권4호
• /
• pp.287-294
• /
• 2006

Germination and early elongation of rice after germination were investigated in anoxic air treatment, nitric oxide gas treatment, and six concentrations of mercuric chloride solutions to determine the effects of limited oxygen environment, nitric oxide, and inhibited water flux through cell membrane in $17^{\circ}C$. Anoxic air treatment affected germination of tested six varieties very little. However root elongation rates were severely inhibited while shoot growth was affected less. Reductions in shoot and root elongations demonstrated genotypic variations. Nitric oxide delayed the germination of rice even though it didn't affect the final percent germination. Elongations of root and shoot were inhibited in nitric oxide treatment. The inhibitor effect of nitric oxide on the shoot elongation of rice was less severe, while nitric oxide completely inhibited the root emergence of rice. Concentrations of $HgCl_2$ greater than $300{\mu}M$ dramatically reduced the rate and percentage of germination when compared to distilled water treatment. The reduced percent germination showed the greatest variation among rice varieties in $500{\mu}M$ solution of mercuric chloride. Ansanbyeo, Jinheung, and Odaebyeo were affected less by $HgCl_2$, Nonganbyeo and Sangmibyeo were intermediate, and the germination of Andabyeo was greatly reduced by $HgCl_2$. Root elongation of germinated rice seedlings was more sensitive to oxygen deficits, nitric oxide, and $HgCl_2$ treatments than germination and shoot elongation. In conclusion, poor seedling establishment of rice sown in flooded paddy soils, in which the oxygen supply to the seeds is restricted, appears to the result of limited root elongation rate.