• 대한정형도수물리치료학회지
• /
• 제23권2호
• /
• pp.33-44
• /
• 2017

Background: Lumbar stabilization exercise and gluteal muscle strengthening exercises are widely used to treat for lower back pain patient. The present study aimed to compare the effects of lumbar stabilization exercise and gluteal muscle strengthening exercises on chronic lower back pain with lumbar spine instability, with regard to pain intensity, disability, and psychosocial factors. Methods: Among 53 patients with chronic lower back pain, those with spine instability were selected using 5 examination tests. The selected 28 patients were randomly assigned to lumbar stabilization exercise group (LSE, n=15) and gluteal strengthening exercise group (GSE, n=13). Each group performed the corresponding exercise for 40 minutes, twice a week for 4 weeks. To analyze and compare the effects, pain intensity, the level of low back disability, and psychosocial factors were assessed before and after intervention. Results: There was significant difference in lower back pain intensity between the two groups before and after intervention. The change in low back disability was significant in the GSE group alone following intervention (p<.05), but no other significant difference was found between the groups. Among psychosocial factors, the changes in the fear-avoidance beliefs questionnaire (FABQ)-physical activity and FABQ-total were significant in the LSE group alone following intervention (p<.05). However, no significant difference were found in these factors between the two groups before and after intervention. Conclusions: LSE and GSE for lower back pain with lumbar spine instability showed no significant difference for pain intensity, physical disability, or psychosocial functioning.

• 대한치과보철학회지
• /
• 제33권1호
• /
• pp.75-84
• /
• 1995

This study was designed as a reference of vertical dimension in prosthetic treatment. The author analyzed six facial measurements, namely, (1) the height of lower face at maximum intercuspal position, (2) the height of lower face at resting position, (3) midface, (4) external ear and lateral wall of orbit, (5) interpupillary distance, (6) distance between pupil and mouth in the 100 Won-kwang Univ. Dental collage students(50 : male, 50 : female), who have normal occlusion, no posterior prosthesis, no experience of orthodontic treatment, and no deformity of facial soft tissue and no temporomandibular dysfunction. The results of this study were as follows : 1. The length of midface was shortest and the inter-pupillary distance was longest in both male and female. 2. The length difference with the length of midface and lower face at maximum intercuspal position was 5.64mm in male and 2.23mm in female, so the lower face was longer, 3. The facial measuring component, similar to lower face at maximum intercuspation, was the length of between medial wall of external ear and lateral wall of orbit. It's difference was 1.3mm in male, 1.77mm in female, and the lower face was shorter. 4. The difference of lower facial length in resting position and maximum intercuspation was 2.48mm in male, 2.24mm in female, the length of resting position was therefore longer. 5. The most clost correlation with the height of maximum intercuspal positioning lower face was resting lower face in both groups.

• 대한치과보철학회지
• /
• 제45권6호
• /
• pp.787-794
• /
• 2007

Statement of problem. Surface microgrooves on Ti substrata have been shown to alter the expression of genes responsible for various biological activities of cultured fibroblasts. However, their effect on enhancing cell proliferation is not yet clear. Purpose. The purpose of this study was to determine the dimension of surface microgrooves on Ti substrata that enhances proliferation and alters gene expression of cultured human gingival fibroblasts. Material and methods. Commercially pure Ti discs with surface microgrooves of monotonous $3.5{\mu}m$ in depth and respective 15 and $30{\mu}m$ in width were fabricated using photolithography and used as the culture substrata in the two experimental groups in this study (TiD15 and TiD30), whereas the smooth Ti was used as the control substrata (smooth Ti group). Human gingival fibroblasts were cultured on the three groups of titanium substrata and the proliferation, DNA synthesis, and gene expression of theses cells were analyzed and compared between all groups using XTT assay, BrdU assay, and reverse transcriptase-polymerase chain reaction (RT-PCR), respectively. Results. From the XTT assay at 48 h incubation, the proliferation of human gingival fibroblasts in TiD30 was significantly enhanced compared to that in smooth Ti and TiD15. The results from the BrdU assay showed that, at 24 h incubation, the DNA synthesis was significantly enhanced in TiD30 compared to that in smooth Ti. In RT-PCR, increase in the expression of PCR transcripts of fibronectin, CDK6, $p21^{cip1}$ genes was noted at 48h incubation. Conclusion. Surface microgrooves $30{\mu}m$ in width and $3.5{\mu}m$ in depth on Ti substrata enhance proliferation and alter gene expression of cultured human gingival fibroblasts.

• 대한치과보철학회지
• /
• 제45권3호
• /
• pp.375-381
• /
• 2007

Statement of problem. Prior to determining an optimal width of micropatterned grooves provided on titanium substrata, we have done a pilot study using surface topographies in combined microm and submicrom levels. Purpose. The purpose of this study was twofold 1) to assess the proliferation and 2) to analyze the expression of genes encoding the intracellular signaling proteins involved in cell-substratum adhesions and adhesion-dependent G1 phase cell cycle progression of human gingival fibroblasts plated on smooth and microgrooved/acid-etched titanium substrata. Material and methods. Three groups of titanium discs as NE0 (smooth Ti substrata), E15 (Ti substrata with microgrooves of $15{\mu}m$ of spacing and $3.5{\mu}m$ in depth and with further acidetching), and E30 (Ti substrata with microgrooves of $30{\mu}m$ spacing and $3.5{\mu}m$ in depth and with further acid-etching) served as the human gingival fibroblasts' substrata. Viability and proliferation of fibroblasts were determined using an XTT assay. Gene expressions of fibronectin, ${\alpha}5$ integrin, CDK4, and $p27^{kip}$ were analyzed in RT-PCR. Cell-substratum interactions were analyzed in SEM. Results. From the XTT assay at 24 h incubation, the mean optical density (OD) value of E15 was significantly greater than the values of E30 and NE0. At 48 and 96 h however, the mean OD values of E30 were significantly greater than the values of E15 and NE0. No differences in the expression of PCR transcripts at 96 h incubations were noted between groups, whereas at 48 h, an unexpected increase in the expression of all the transcripts were noted in E15 compared with other two groups. Fibroblasts were observed to orient and adhere inside the microgrooves. Conclusion. Micropatterned grooves and acid-etching on Ti substrata alter viability and gene expression of adhered human gingival fibroblasts.

• 한국조리학회지
• /
• 제16권1호
• /
• pp.280-291
• /
• 2010

본 연구는 요리직업전문학교 재취업 교육을 받은 수강생들이 취업 후 요리직업전문학교의 교육 만족도가 취업 만족도에 영향 관계를 파악하기 위하여 요리직업전문학교를 수료한 후 취업한 243명 대상으로 만족도를 조사하였다. 이를 확인하기 위하여 SPSS 통계프로그램 14.0을 활용하여 빈도분석, 요인 및 신뢰도분석, t-test, ANOVA 분석과 다중회귀분석을 실시하였다. 분석결과, 교육환경 만족도는 교육 시간 만족, 교육 시설 만족, 교육 내용 만족으로 3개의 요인으로 분석되었고, 취업만족도는 급여 만족도와 업무 수행 만족도 요인으로 분석되었다. 가설을 검정하기 위한 차이검정에서 남녀와 자격증 유무에서 교육 시간과 교육 내용에서 통계적으로 유의하였고, 교육 시설에서는 유의하지 않는 것으로 분석되었다. 분산분석에서는 교육 만족도에서 부분적으로 가설이 채택되었고, 교육 만족도와 취업 만족도간의 회귀분석에서는 모두 통계적으로 유의한 결과가 나와서 가설이 채택되었다.

• 보건교육건강증진학회지
• /
• 제26권2호
• /
• pp.25-33
• /
• 2009

Objectives: Smoking is related to periodontal disease and periodontal therapy. So the aim of this study was to investigate the effects of professional tooth cleaning and plaque control instruction (PT & PCI) for smoking behavior. Methods: A total of 151 adults were investigated using the O'Leary Plaque Index (PI), $L\ddot{o}e$ & Silness gingival index (GI) and the number of sextants possessing periodontal pocket (SPP). And adults were given a through dental scaling and Watanabe method for dental plaque control. Follow up examination were conducted after 3 months and compared the pre and post- status. The collected data were analyzed with t-test, paired t-test and one-way analysis of variance. Results: Regardless of smoking behavior, improving effects were identified after PT & PCI on PI, GI and SPP in the whole population. However, the effects of GI improvement were significant in the smoking group alone; those of PI improvement were most significant in the non-smoking group; and those of SPP improvement were more significant in non-smoking and pre-smoking groups than in the smoking group. The shorter period of smoking and the smaller amount of smoking, the greater effects of PT & PCI by smoking-related characteristics. Conclusion: Smoking cessation instruction should necessarily be included in oral health education in that smoking is an important factor to consider in prevention of periodontal diseases and periodontal therapies.

• 대한공업교육학회지
• /
• 제30권2호
• /
• pp.45-59
• /
• 2005

The purpose of this study is to develop and operate a curriculum which is able to connect a vocational high school to a general high school. That curriculum makes it possible to meet the necessity of accepting the learning rights for the students of a small scale school located in a rural community. And also, it is able to broaden the implementation of the elective-centered curriculum in the $7^{th}$ curriculum. So, We developed a connected curriculum model which fulfills to the utmost the requirement of a few students who want to go to a collage after finishing vocational high school and who want to get a job after finishing general high school in a electing their subjects and then operated it with student's moving to the connected schools on a Saturday. In this study, we got the results as follows: First, we prepared the curriculum environments which can accept the learning-demands of students in a small scale school located in a rural community. To do so, we publicized the curriculum of a vocational high school connected to that of a general high school, made questions, and organized the committee of students, parents and teachers and so on. Second, we organized and implemented the connected curriculum so that a small number of students could learn the subjects they demands. So, a small number of the vocational high school students could have learned the 'Math I' and 'English Conversation' which were not allowed in their school. And also, a small number of the general high school students who hope to have an occupation after graduation could have learned 'Web Design' subject. Third, we examined the problems and presented the solving methods according to organizing and implementing the connected curriculum. So we could have served as an aid on building up the foundation of the generation of the elective-centered curriculum.

• 한국의류산업학회지
• /
• 제15권5호
• /
• pp.682-693
• /
• 2013

Camouflage is evaluated by scientific principle in the fields of biology, military science, and art. It has a strong influence on contemporary fashion and means exposure with concealment. This study analyzed the visual characteristics of camouflage patterns in fashion design through documentaries and fashion photos. The fashion design results areas follow. The simple blending of a disruptive motif indicated an inaccurate repetition of a disruptive motif, the discontinuous or continuous connection of disruptive motif, the irregular repetition of a disruptive animal silhouette, the collage of a different disruptive motif, the craft of a disruptive motif and the intensive color match of a disruptive motif. It represented the maximization of complication, fantastic and fanciness. The overlap of a disruptive motif showed the overlap of disruptive print patterns with transparency and an overlap of different fabrics with a disruptive pattern. It represented spatial relationships of three dimensions as well as the maximization of visual illusion and the reinforcement of attractiveness. The blurring of a disruptive motif showed the pointage of disruptive motif, the pointage of image, value gradation, the whole blurring of a disruptive pattern cluster and stained appearance. It represented the obscurity of motif form, the uncertainty of object and double meaning. The trompe l'oeil of a partial background object showed the realistic and the painterly imitation of color and texture for partial objects through a close-up. It represented amazement and pleasure by illusion, scarcity and the decoration of surface and synecdochical remind. In conclusion, camouflage in fashion was weakened and modified from a classical military context by a unique expression of various motifs.

• 아시안잔디학회지
• /
• 제24권1호
• /
• pp.24-30
• /
• 2010

우리나라 골프장에 조성된 한지형 잔디 5종류 48품종(creeping bentgrass 9품종, kentucky bluegrass 20품종, tall fescue 10품종, perennial ryegrass 5품종, chewing fescue 4개 품종)에 대하여 봄철에 발병하는 병의 종류와 병의 심각성을 평가하였다. Rhizoctonia cerealis에 의해 늦가을부터 자연적으로 발병한 yellow patch 뿐 이었다. 잔디 종류 중에서 Perennial ryegrass 품종과 creeping bentgrass 품종에서 이른 봄에 심각하게 발생한 반면, 다른 종류의 품종들은 통계적으로 유의성이 없었다. Creeping bentgrass 품종 중에는 "Pennlinks II"가 가장 감수성을 보였다. Yellow patch의 증상은 가장자리가 자줏빛갈색을 보였으며, 직경의 크기는 5 cm-50 cm 이었다. 이결과로 볼 때 yellow patch의 발병 률은 잔디 종류와 품종 간에 큰 차이를 보였다.

• Journal of Advanced Marine Engineering and Technology
• /
• 제40권10호
• /
• pp.906-915
• /
• 2016

In this study, a network monitoring system, including a secure 460-Network and a 460-Gateway, is designed and developed according with the requirements of the IEC (International Electro-Technical Commission) 61162-460 network standard for the safety and security of networks on board ships. At present, internal or external unauthorized access to or malicious attack on a ship's on board systems are possible threats to the safe operation of a ship's network. To secure the ship's network, a 460-Network was designed and implemented by using a 460-Switch, 460-Nodes, and a 460-Gateway that contains firewalls and a DMZ (Demilitarized Zone) with various application servers. In addition, a 460-firewall was used to block all traffic from unauthorized networks. 460-NMS (Network Monitoring System) is a network-monitoring software application that was developed by using an simple network management protocol (SNMP) SharpNet library with the .Net 4.5 framework and a backhand SQLite database management system, which is used to manage network information. 460-NMS receives network information from a 460-Switch by utilizing SNMP, SNMP Trap, and Syslog. 460-NMS monitors the 460-Network load, traffic flow, current network status, network failure, and unknown devices connected to the network. It notifies the network administrator via alarms, notifications, or warnings in case any network problem occurs. Once developed, 460-NMS was tested both in a laboratory environment and for a real ship network that had been installed by the manufacturer and was confirmed to comply with the IEC 61162-460 requirements. Network safety and security issues onboard ships could be solved by designing a secure 460-Network along with a 460-Gateway and by constantly monitoring the 460-Network according to the requirements of the IEC 61162-460 network standard.