• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1995년도 추계학술대회
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• pp.157-158
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• 1995

• International Journal of Contents
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• 제14권3호
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• pp.53-60
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• 2018

Based on the previous studies on sinkholes and ground subsidence conducted until date, the factors affecting the occurrence of sinkholes can be divided into natural environmental factors and human environmental factors in accordance with the purpose of the study. Furthermore, to be more specific, the human environment can be classified into the artificial type and the social type. In this study, the assessment indices for assessing risks of sinkholes and ground subsidence were developed by performing AHP analysis based on the results of the study by Lee et al. (2016), who selected the risk factors for the occurrence of sinkholes by performing Delphi analysis targeting relevant experts. Analysis showed that the artificial environmental factors were of significance in affecting the occurrence of sinkholes. Explicitly, the underground factors were found to be of importance in the natural environment, and among them, the level of underground water turned out to be an imperative influencing factor. In the artificial environment, the underground and subterranean structures exhibited similar importance, and in the underground structures, the excessive use of the underground space was found to be an important influencing factor. In the subterranean ones, the level of water leakage and the erosion of the water supply and sewage piping system were the influential factors, and in the surface, compaction failure was observed as an imperative factor. In the social environment, the regional development, and above all, the groundwater overuse were found to be important factors. In the managemental and institutional environment, the improper construction management proved to be the most important influencing factor.

• Journal of Korean Neurosurgical Society
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• 제50권3호
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• pp.209-215
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• 2011

Objective : The authors investigated the changes of cortical sensorimotor activity in functional MRI (fMRI) and functional recovery in spinal cord injury (SCI) patients who had been treated by bone marrow cell transplantation. Methods : Nineteen patients with SCI were included in this study; ten patients with clinical improvement and nine without. The cortical sensorimotor activations were studied using the proprioceptive stimulation during the fMRI. Results : Diagnostic accuracy of fMRI with neurological improvement was 70.0% and 44.4% for sensitivity and specificity, respectively. Signal activation in the ipsilateral motor cortex in fMRI was commonly observed in the clinically neurological improved group (p-value=0.002). Signal activation in the contralateral temporal lobe and basal ganglia was more commonly found in the neurological unimproved group (p-value<0.001). Signal activation in other locations was not statistically different. Conclusion : In patients with SCI, activation patterns of fMRI between patients with neurologic recovery and those without varied. Such plasticity should be considered in evaluating SCI interventions based on behavioral and neurological measurements.

• 대한두개안면성형외과학회지
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• 제21권1호
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• pp.58-63
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• 2020

Spindle cell squamous cell carcinoma (SpSCC) is a biphasic tumor composed of squamous cell epithelial and spindle cell mesenchymal components, both of which are malignant. Cutaneous SpSCC can cause diagnostic and therapeutic difficulties because of its rarity, heterogeneity, morphological similarity to other cutaneous spindle cell neoplasms, and uncertain pathogenesis and prognosis, particularly when the squamous cell carcinoma component is minimal or missing. Intransit metastasis and satellite lesion (satellitosis) constitute a spectrum of non-nodal regional metastases. Here the author reports the first known case of cutaneous SpSCC presenting with intransit metastases and a satellite lesion, which were exceptionally aggressive. A 77-year-old female patient presented with a 3×3×0.5 cm mass on her right cheek. Despite wide excision and postoperative radiation, the patient resulted in local recurrence and multiple distant metastases within 3 months. If many high-risk factors-particularly satellitosis and in-transit metastases are observed in a tumor with epithelial to mesenchymal transition, then further wide excision and adjuvant chemoradiation should be considered early in the treatment process. A multidisciplinary approach could be the key to cure the most aggressive malignancies of the skin, as in other organs.

• Asian-Australasian Journal of Animal Sciences
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• 제13권8호
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• pp.1162-1172
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• 2000

The research was conducted to quantify farm and household characteristics of sheep farmers, evaluate farmer access to and the effectiveness of livestock services in sheep farming areas, and examine regional constraints to improving sheep productivity and profitability in Nepal. A rapid diagnostic socioeconomic survey of 200 sheep farmers was carried out in 1996 and all four ecological regions (Trans-Himalayan, Mountains, Hills and Terai), each with a distinct local sheep breed, were represented in the survey. Six major constraints were identified: (a) poor performance of local sheep breeds, (b) a serious seasonal deficit of pasture and other feed, (c) the lack of an organized market for wool and meat, (d) poor access to agricultural credit, (e) primitive shearing equipment, and (f) an inadequate supply of drinking water for sheep. Strategies to assist farmers develop their sheep management skills, improve access and quality of support services, improved technology adaptable to local conditions and effective linkages with local carpet and meat industry are likely to overcome the constraints and alleviate persistent poverty faced by sheep farmers in Nepal.

• 한국임상보건과학회지
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• 제6권1호
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• pp.1089-1096
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• 2018

Purpose: To investigate the corneal thickness and anterior chamber depth (ACD) of eyes with Keratoconus in the Korean population with the Pentacam. Methods: The subjects consisted of 84 eyes from Keratoconic adults aged 7-59 years during 2010. The thinnest area, apex zone, and pupil centre of the corneal thickness were measured using the Pentacam pachymetry. ACD value was also measured with Pentacam. Results: There was a statistically significant relationship between thickness of the cornea at the apex area and the pupil centre (p=0.0001). However, there was no statistical difference (p>0.5) in the mean thickness of thinnest area, apex zone, pupil centre of cornea between right eye and left eye. Also, correlation between ACD and corneal thickness in all subjects had no statistical differences (p>0.05) in all subjects. Conclusion: These results suggested that the regional thickness of cornea and ACD with Pentacam can provide correct and useful diagnostic information of the morphology of Keratoconus for the RGP contact lens and diagnosis of abnormal corneal refraction surgery.

• 대한두경부종양학회지
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• 제2권1호
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• pp.41-48
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• 1986

Tumors of the nasal cavity are rare and are usually classified and reported jointly with tumors of the paranasal sinuses. Neverthless their frequency, diagnostic problems, management, and prognosis differ considerably from the latter and justify their study as a separate entity in order to define clearly and evaluate their characteristics. Males outnumbered females in a ratio of 2 to 1. Regional lymph node metases is infrequent; only 10% of the patients presented nodes on admission. Radiation therapy is more favorable method of treatment for nasal cavity tumor secondary to good cosmetic results and high local control rate. The tumor doses are in the range of 5,000 to 6,000 rads in 5 to 6 weeks and an additional dose of 500 to 1,000 rads were given through reduced field to residual disease area. The results of two cases of nasal cavity tumor treated by radiation alone were reasonably good, and review of literature indicated that the radiation alone can give high local control rate and good cosmetics. Therefore, at present time, we recomend radiation therapy for the nasal cavity tumor.

• 한국동물위생학회지
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• 제37권2호
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• pp.97-100
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• 2014

This study was performed in Korea to get serological information for bovine herpesvirus 1 (BoHV-1), most commonly found in cattle. Antibodies against BoHV-1 were examined by targeting infectious bovine rhinotracheitis (IBR) in unvaccinated and vaccinated cattle, using viral neutralization (VN) test. In 2013, among 261 sera collected from IBR-unvaccinated herds, 7 sera (2.7%) were found seropositive and their VN titers were ranging from 1:4 to 1:32. Among 315 sera collected from IBR-vaccinated herds in large capacity farms, 303 sera (96.2%) were found to be seropositive for BoHV-1 and their VN titers were in the range of 1:4 to 1:2048. It was found that the IBR-vaccinated herds had higher levels of VN titer than IBR-unvaccinated herds. The results indicated that it may be due to heavy vaccination in vaccinated herds and no or a little infection in unvaccinated herds. At the end of the study it was concluded that although the seropositivity in IBR-unvaccinated herds was low, the monitoring of IBR should be continuously practiced to control and prevent the disease because of exportation of living cattle causing its nationwide outbreaks.

• Journal of Gastric Cancer
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• 제10권3호
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• pp.87-90
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• 2010

Early gastric cancer (EGC) is defined as tumor invasion confined to the mucosa or submucosa, regardless of the presence of regional lymph node metastasis. Lymph node metastasis is the most powerful and important prognostic factor for gastric cancer. Based on the risk of lymph node metastasis in EGC obtained from a large number of surgical cases in Japan, it was suggested that the criteria for endoscopic mucosal resection (EMR) and endoscopic submucosal resection (ESD) as local treatment for EGC might be extended. However, extending the indications for EMR and ESD remains controversial because the long-term outcomes of these procedures have not been fully documented, and there is a risk for lymph node metastasis. Furthermore, current diagnostic imaging techniques are unsatisfactory for accurately predicting metastasis to lymph nodes. Moreover, the long-term results of standard radical gastrectomy including minimally invasive procedures for stage IA have been increasing and have reached 99 to 100%. To determine the true efficacy of endoscopic resection of EGC, we need more evidence of long-term follow-up, standardization of techniques, and pathological interpretation.

• 한국임상수의학회지
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• 제36권5호
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• pp.271-273
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• 2019

A 12-year-old intact male Cocker spaniel dog was presented for evaluation of lethargy and abdominal distension. Clinical examination revealed a round, palpable mass in the middle of the abdomen. Abdominal computed tomography showed a round soft tissue mass ($width{\times}height{\times}length$, $25{\times}13{\times}15cm^3$) without regional invasion and distant metastasis. Cytologic evaluation of the mass revealed adipose tissue-derived cells having vacuolated cytoplasm, indistinct borders, large nucleus and ropy chromatin pattern with variable sized lipid droplets. Complete surgical resection of the mass was performed and the mass was histopathologically diagnosed as primary omental lipoma. The dog has been recovered well without any additional clinical signs, and there was no relapse over the 8 months follow-up period. The clinical features and prognosis of the dog with primary omental adipocytic tumors have been described in this report.