• Medical Lasers
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• v.9 no.1
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• pp.58-61
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• 2020

Keloids are pathologic fibroproliferative conditions characterized by excessive collagen deposition during wound healing. The pathogenesis of keloids is not fully understood, and current treatment options show variable results. In this case report, the patient developed a keloid after bilateral total thyroidectomy, and was treated with a combination approach using fractional ablative laser systems along with cryotherapy and triamcinolone injection. After seven monthly sessions of combination treatment, the patient presented marked improvement of the scar texture and symptoms. Furthermore, there was no recurrence for up to 2 years. We propose this combination as a safe and effective treatment option for keloid patients.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.1
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• pp.454-463
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• 2013

Upon changing architectural education system into 5-year program, the design studio in university should meet the requirement in order to acquire the accredition. This study investigates on student' perceptions and responses, according to the configuration(open, mixed, closed), to their studio environment. Results and suggestions are as follows for all types: First, there should be space for individual activities for the student: Second, excluding space for excluding space for the individual work, seperated area must be provided for co-operative work, such as making models; Third, a clear territorial distintion between the individual and the co-work space should be able to set by the students, using. for instance, movable partition or corridor; Fourth, however, in line with the types, a seperated lecture or seminar room in the open type, a device to prevent distraction such as noise in the mixed type, and more space for co-work in the closed type are also suggested.

• Industry Promotion Research
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• v.5 no.3
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• pp.145-155
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• 2020

Co-operatives are a deep-rooted organization that was first organized in Britain in the 19th century and spread to Europe and North America in the early 20th century and to the rest of the world from the mid-20th century. Cooperative in Italy are fraternal (friendly societies) separated from religion, and in the early days of socialism and the late 19th century Catholic Italy, but independent of activity. And the Church's social participation, as well as multiple personalities. Therefore, the purpose of this study is to study the laws and institutions of Italian cooperatives. And let's look at how the laws and systems of Italian co-operatives support society and the national economy. Specifically, firstly, based on prior research, the concept of co-operatives and the cooperative movement and social values are considered. Second, review the development process and characteristics of Italian co-operatives and the legal system. Third, I would like to analyze the case of Italian co-operatives. Fourth, suggest implications according to the results of the study. The results of the study suggested the following. First, the attitude such as attachment and sincerity of representatives and staff of village enterprises is very important. Second, all members of the organization should participate in decision making with empathy and attachment to the vision of the village enterprise. Third, it should be highly likely that village enterprises, which can draw capital from outside according to the needs of the organization, will generate higher economic results. Fourth, it is important to establish a model of mind enterprise by presenting factors and success factors in establishing a village enterprise based on cases and theories. In conclusion, Co-operatives should contribute to social contribution rather than economic profit-seeking.

• Journal of Trauma and Injury
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• v.32 no.1
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• pp.32-39
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• 2019

Purpose: The aim of this study was to determine which factors contribute to the surgical treatment outcomes of acetabular fractures. Simultaneously, we aim to report on the treatment results after our hospital was designated as the focused training center for trauma. Methods: We conducted a retrospective review of all patients who experienced acetabular fractures from January 1, 2014 to May 1, 2017 and visited our hospital. Patients who had associated pelvic ring fractures or were lost to the one-year follow-up were excluded; a total of 37 fractures were evaluated. We evaluated the clinical results using the scoring system of Merle $d^{\prime}Aubign\acute{e}$ (MDA) and grade of Brooker for heterotopic ossification. Results: Thirty-seven patients (31 men and 6 women) were identified. The mean injury severity score (ISS) was 8.7, with 32.4% of patients having a score >15. The average blood transfusion in the first 24 hours was 0.54 pints. Falling was the most common injury mechanism (32.4%). Chest injury was the most common associated injury (16.2%), followed by head injury (13.5%). The posterior wall and both column fracture were the most common (37.8%) fracture patterns. Excellent and good clinical grades of MDA included 28 patients (75.6%) and fair and poor grades included nine (24.3%), respectively. Four patients were diagnosed with a post-operative infection (10.8%); one out of four patients who had co-morbidity died (2.7%), and another patient underwent a replacement surgery (2.7%). Multivariate analysis showed that age and operation time were associated with MDA. In addition, operation time and ISS were significant co-factors of the Brooker grade. Conclusions: Korea University Guro Hospital showed similar treatment results of acetabular fractures compared to other publications. The age and operation time were co-factors of the clinical outcome of this fracture. Additionally, increased operation time and injury severity score were suggested to increase the Brooker grade.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.1
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• pp.161-171
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• 2016

As social environment has changed, a practical academy for higher employment rates becomes more important in higher education. It is need to have a paradigm shift in geography education. In this background, this study explore practical education in geography. This study propose practical strategy using GIS curriculum. First, the demand analysis in national and regional area is need. Second, continuous renewal reflecting new technologies is need. Third, capstone design and co-operative education with GIS company is need. Fourth, convergence and diversification in Geography education is need. Fifth, publicity for the practical geography education is need.

• Journal of Korea Technology Innovation Society
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• v.9 no.3
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• pp.435-450
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• 2006

As technological capabilities have enhanced, the patterns of innovation activities of latecomer firms changed to post catch-up mode. The purpose of this research is to provide conceptual frameworks for post catch-up mode of innovation activities, based on the case study on Korean mobile phone industry. It presents the possibilities of architectural innovation of latecomer firms, which is stimulated by the co-operative innovation activities between component suppliers and users from the initial stage of final product development.

• Journal of the Korea Society for Simulation
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• v.15 no.1
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• pp.43-50
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• 2006

The major objective of this paper is to propose a hybrid simulation environment for autonomous UAV system by integrating the continuous-time model with discrete-event model. Proposed system is able to support high autonomous behavior by combining the planner, recognizer, and controller model to deal with the HL20 AIRPLANE model. Thus, the high level decision may be efficiently issued even upon the unexpected circumstance. The proposed system model has been successfully verified by several simulation test performed on the DEVS simulation S/W environment.

• Journal of Korean Neurosurgical Society
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• v.60 no.6
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• pp.684-690
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• 2017

Objective : As increasing the size of the geriatric population, the number of elderly patients, who need the surgery for painful degenerative spinal stenosis has been increasing. The geriatric population may be relatively high complications, because of age and age-associated medical conditions. However, there is a lack of studies addressing the perioperative complications and outcomes in elderly patients with posterior lumbar inter body fusion with screw augmentation (PLIF). Methods : We retrospectively reviewed the medical records and radiographic studies of geriatric patients who had spine surgery of PLIF due to spinal stenosis for 11 years. We divided into 2 groups (A; 70-75 years, B; over then 76 years) according to the age. Surgical level of each groups, hospital day and postoperative day, co-morbidities, complications, clinical outcomes were analyzed. Operative reports, hospital and outpatient clinic charts, and radiographic studies were reviewed. Results : Group A was composed of 80 patients, their mean age was 72.21 and female dominant (n=46), and their mean surgically fused level was 1.52 level. Group B was 36 patients, their mean age was 78.83 and female dominant (n=20), and their mean surgically fused level was 1.36 level. Comparing between two groups, complications, postoperative hospital stay were slightly increase in group B and co-morbidity was statistically high in group B, however clinical outcomes were similar between two groups. Conclusion : Increasing age might be an important risk factor for complications in patients undergoing PLIF, however, we would like to recommend that if the situation of spine of extreme geriatric patients need PLIF, it should be in the surgeon's consideration after careful selection and clinical judgement.

• Archives of Reconstructive Microsurgery
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• v.2 no.1
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• pp.62-69
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• 1993

Recently, conservative and bloodless operative procedures have been focused, so that endoscopic laser have been used. However application of endoscopic laser surgery for laryngeal lesion is capable for followings: (1)capability of delivery through an operating microscope, (2) vaporization of ultraspot. $CO_2$ laser which has been used, has limitations for voice improvement because of 700 micron beam spot. KTP-532 laser which is capable of delivery through an operating microscope vapore 200 micron ultraspot has developed and applied to microlaryngeal surgery. We have experienced 60 cases who were contracted with hoarseness(53 cases of benign lesions vocal nodule 13, vocal polyp 13, bilateral diffuse polyposis of vocal cords 11, intracordal cyst 8, vocal papilloma 5, laryngocele 1, laryngeal stenosis 2 and 7 cases of malignant lesions : laryngeal carcinoma stage I and II) since 1991. We operated them with KTP-532 Laserscope(3 Watt/0.05 sec., pulsed or continuous. San Jose, Calif, USA). Forty eigh cases(90.6%) of 53 bengin laryngeal lesions and 4 cases(57.1%) of malignant lesions were significantly improved in their voices. There were a few complications and technical problems, but laser surgery alone had a limitation to eradicate the disease.

• Preventive Nutrition and Food Science
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• v.12 no.2
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• pp.89-94
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• 2007

Nutrients and hormone levels of dried pig placenta were studied. Placentas were freeze-dried (FD), oven-dried at 60 (OD-60), and 90$^{\circ}C$ (OD-90) and then crushed by a blender into small pieces. FD and OD-60 pig placenta had a higher moisture content than did OD-90, with no difference between FD and OD-60. There were no large differences in compositions of crude protein, crude fat, and crude ash of dried placenta among the treatments and the contents of K, Fe, and ${\alpha}$-tocopherol were highest in FD (p<0.05). Glutamine and glycine were the most abundant amino acids in all dried placenta and tyrosine was highly retained in FD placenta, compared with OD (p<0.05). Estradiol was the major sex hormone, followed by progesterone and testosterone in all dried placentas. Antibiotics including amoxicillin, sulfamethazine, tylosin, and chlorotetracyclin were not detected from the pig placentas tested. These results demonstrate that placenta is a good biomaterial with high nutritional quality, and that freeze drying is superior to oven drying for processing pig placenta.