• Korean Journal of Applied Biomechanics
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• v.15 no.1
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• pp.45-61
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• 2005

Stance is defined as any state in which the total mass of the body is supported by the feet. In order to maintain stance, the sum of gravito-inertial forces acting on the body must be registered by equal and opposite forces at the region of contact between the organism and the support surface. Balance is controlled by applying forces to the surface of support so as to maintain the body's center of mass vertically above the feet. for a muIti-segment organism, there can be a variety of ways in which balance can be controlled, since movements of different body segments can have similar effects on the control of balance. In general, the organism tends to have a body configuration that is aligned with gravito-inertial force when there are no external forces acting on it. If any segments of the body are not aligned with gravito-inertial force vector, a torque on that segment would tend to move the body's center of mass. The maintenance of postural stability is accomplished in humans by a complex neural control system. This requires organizing integrating and acting upon visual, vestibular, and somatosensory input, providing orientation information to the postural control system. The information necessary to control and coordinate movement is provided by the visual sense of eye position with respect to the surrounding surface layout, the vestibular sense of head orientation in the gravito-inertial space, and the somatic sense of body segment position relative to one another and to the support surface. In this study, perception and action capability was examined from various points of view. The underlying assumption of the study was that the change of postural configuration could be effected by organism, environment and task goal.

• Journal of Korean Neurosurgical Society
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• v.29 no.11
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• pp.1538-1541
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• 2000

Apenetrating head injury by an arrow is extremely rare being only two cases reported in the literature. We report a case of 12-year-old boy who presented with an arrow lodged at the posterior fossa through nasal nostril. He was slightly drowsy, but neurologically intact except a sixth nerve palsy in the left eye. Brain CT showed no intracerebral hemorrhage. The arrow was entered through the right nostril and the tip was stucked in the left cere-bello-pontine angle through the sphenoid sinus. We removed the arrow without craniotomy since the tip was verified smooth and no cerebral arteries were in contact with the arrow. The patient recovered well without any significant complications. The sixth nerve palsy resolved completely after six months. The verification of the shape of the offending material, a retrograde removal of the arrow in the direction of its line of trajectory, and an identification of adjacent cerebral arteries seem to be important in the management of this type of injury.

• The Journal of Advanced Prosthodontics
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• v.5 no.3
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• pp.312-318
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• 2013

PURPOSE. The aim of this study was to compare the passivity of implant superstructures by assessing the strain development around the internal tapered connection implants with strain gauges. MATERIALS AND METHODS. A polyurethane resin block in which two implants were embedded served as a measurement model. Two groups of implant restorations utilized cement-retained design and internal surface of the first group was adjusted until premature contact between the restoration and the abutment completely disappeared. In the second group, only nodules detectable to the naked eye were removed. The third group employed screw-retained design and specimens were generated by computer-aided design/computer-aided manufacturing system (n=10). Four strain gauges were fixed on the measurement model mesially and distally to the implants. The strains developed in each strain gauge were recorded during fixation of specimens. To compare the difference among groups, repeated measures 2-factor analysis was performed at a level of significance of ${\alpha}$=.05. RESULTS. The absolute strain values were measured to analyze the magnitude of strain. The mean absolute strain value ranged from 29.53 to 412.94 ${\mu}m/m$ at the different strain gauge locations. According to the result of overall comparison, the cement-retained prosthesis groups exhibited significant difference. No significant difference was detected between milled screw-retained prostheses group and cement-retained prosthesis groups. CONCLUSION. Within the limitations of the study, it was concluded that the cement-retained designs do not always exhibit lower levels of stress than screw-retained designs. The internal adjustment of a cement-retained implant restoration is essential to achieve passive fit.

• Journal of Korean Academy of Nursing
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• v.30 no.1
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• pp.225-239
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• 2000

This study is a research of conceptual development to find the factors of presence. The concept and the definition of presence received from literary review. On the basis of these findings, we formulate the contents of presence through structured interview guide composed of open-ended questionnaire which included the frequency, attitude, and posture. We selected 104 samples who are the patients, doctors, nurses, and other health providers. And then the contents of presence were established after integrating the formulated contents and putting them in order. The categorizing of the presence was made after discussing with specialist in this field. By using the selected contents, we made 25 statements of presence which were categorized into three factors. The results were as follows: 1. The definition of presence is being with at the same time and space, making attention with openness, and the therapeutic interaction with empathy. 2. The contents of presence through personal interviews are The time required is 5 minutes(46.15%), 2-3 minutes(34.61%), and 10 minutes (15.38%) respectively. The frequency of visiting is 3 times(39.20%), every time(23.07%), and more than 5 times(20.19%) respectively. \circled2 In case of being with nurse is having pain(39.42%), suffering trouble or severe fear(9.61%), feeling discomfort(8.65%), taking care of wound(7.69%), and other unfavorable symptoms(6.73%) respectively. \circled3 The posture being with nurse is depends on the situations(63.46%), sitting(26.92%), and standing(9.61%) respectively. Eye contact with nurse is face to face(78.84%), depends on the situations(20.19%), and not face to face(0.96%) respectively. \circled4 The attitudes of comfort are explaining about disease(23.07%), holding on hands (14.42%), touching on the suffering parts (11.53%), and unconditionally being with(7.69%) respectively. \circled5 Nurses' caring actions are kindness (27.88%), replying to the question (12.50%), smiling(10.57%), bright appearances (8.65%), and right and quick treatment(8.65%) respectively. \circled6 The effects of being with are peaceful mind(58.65%), quick recovery(13.46%), and decrease in fear(12.50%) respectively. \circled7 The attitudes of being with are listening (11.53%), recognition(8.65%), talking about discomfort(8.65%), and answering kindly (7.69%) respectively. 3. From the analysis of presence factors, 25 statements and 3 categorized factors are presented.

• Journal of Arbitration Studies
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• v.19 no.2
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• pp.155-178
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• 2009

The ODR can be categorized into four distinctive types. First type is the asynchronous non-demeanour method. Second type is the asynchronous demeanour method. Third type is the synchronous demeanour method. Fourth type is the synchronous demeanour method. A typical example of the asynchronous and non-demeanour method is e-mail. The example of the synchronous and non-demeanour method is tele conference. The example of the asynchronous demeanour method is video recordings. The example of synchronous and demeanour method is video conference. The primary benefit of e-mail is to avoid the physical violence. But the costs of email is the lack of emotional aspects of disputants. The benefits of tele conference is ease of use, and reduces the negative aspects of face to face communication. but the costs are limitation of the exchange of written information. The benefits of video conference is the approximation of face to face communication by providing oral as well as visual communication. but it is insufficient to represent eye contact. The common limitations of ODR are as follows. First is the lack of human face. Second is the neutrality of arbitrators and mediators. Third is the authenticity of electronic document. Fourth is the digital divide across South and North and generations. Fifth is the cross-cultural communication. The development strategy of ODR is the training and education of arbitrators and mediators in the area of writing skill. Furthermore, it is necessary to supplement the weakness of email via diverse kinds of expressions to show emotions. Finally, it is necessary to train neutrals in the area of cross-cultural communication.

• Journal of Preventive Medicine and Public Health
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• v.37 no.4
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• pp.312-320
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• 2004

Objectives : An outbreak of acute hemorrhagic conjunctivitis (AHC) caused by coxsackie A24 (CA24) virus occurred in South Korea in 2002. CA24 was isolated for the first time from patients with AHC. Therefore, this study was conducted to understand the transmission routes and prevent another AHC outbreaks. Methods : The authors conducted a questionnaire survey among 1,730 students from 2 middle schools and 1 technical high school in Gyeongju city. For statistical analysis the chi-square test was used, and chi-square for trend method showing a level of significance less than p<0.05 was proven to be significant. Variables which were proven to be significant in univariate analysis were analysed by multiple logistic regression. Results : The attack rate was 57.1%. The student groups with rubbing one s own eyes, computer usage, and sharing cellular phone had a significantly higher AHC attack rate (p<0.05). According to the multiple logistic regression, the odds ratios for male, high school, computer use, sharing cellular phone, and rubbing one s own eyes were significant (p<0.05). Conclusion : The most significant feature of this outbreak was that many students rubbed their own eyes following contact with AHC patients in a deliberate attempt to avoid going to school. Other transmission methods were computer usage and sharing cellular phone. In the future, health and school authorities must plan new strategies for the prevention of AHC.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.5
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• pp.2363-2374
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• 2016

Communication occurs through verbal elements, which usually involve language, as well as non-verbal elements such as facial expressions, eye contact, and gestures. In particular, among these non-verbal elements, gestures are symbolic representations of physical, vocal, and emotional behaviors. This means that gestures can be signals toward a target or expressions of internal psychological processes, rather than simply movements of the body or hands. Moreover, gestures with such properties have been the focus of much research for a new interface in the NUI/NUX field. In this paper, we propose a method for recognizing the number of fingers and detecting the hand region based on the depth information and geometric features of the hand for application to an NUI/NUX. The hand region is detected by using depth information provided by the Kinect system, and the number of fingers is identified by comparing the distance between the contour and the center of the hand region. The contour is detected using the Suzuki85 algorithm, and the number of fingers is calculated by detecting the finger tips in a location at the maximum distance to compare the distances between three consecutive dots in the contour and the center point of the hand. The average recognition rate for the number of fingers is 98.6%, and the execution time is 0.065 ms for the algorithm used in the proposed method. Although this method is fast and its complexity is low, it shows a higher recognition rate and faster recognition speed than other methods. As an application example of the proposed method, this paper explains a Secret Door that recognizes a password by recognizing the number of fingers held up by a user.

• Journal of Veterinary Clinics
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• v.27 no.4
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• pp.411-414
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• 2010

Rabbit's cornea is the most common thing that used for researches in ophthalmology, so many experimentations have done. The purpose of this study was to survey the corneal pachymetry, tonometry and specular microscopy in New Zealand white rabbits. Three months old male rabbits ($2.9{\pm}0.2\;kg$) were examined with contact the specular microscope to evaluate the endothelial cell density, coefficiency of variation and the percentage of hexagonal cells in the central cornea. For the pachymetry, ultrasonic pachymeter was used for central cornea in each twenty rabbits, and tonometry was performed forty rabbit's eyes to evaluate the intraocular pressure. Corneal endothelial cell density in New Zealand white rabbit was $3304{\pm}354\;cell/mm^2$. Coefficiency of variation was $45.8{\pm}2$ and the percentage of hexagonal cells in the central cornea was $44.4{\pm}11%$. The pachymetry of cornea was $346.1{\pm}21\;{\mu}m$ and tonometry of eye was $14.3{\pm}2\;mmHg$. It is considered that normal New Zealand white rabbit's pachymetry, specular microscopy and tonometry were useful basic data of rabbit's cornea for research and clinic in veterinary ophthalmology.

• Journal of Acupuncture Research
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• v.32 no.2
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• pp.131-145
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• 2015

Objectives : The purpose of this study was to demonstrate the effectiveness and availability of salt pharmacopuncture of Korean sun-dried salt and processing salt on the basis of bibliographical review. Methods : This study was done through a narrative review of related bibliography including medical books, journals, general bibliography, and web sites. Results : 1. Korean sun-dried salt is produced in the ground with soil, tiles, and pottery. Sun-dried, traditional, granulated, bamboo, and grilled salts are all appropriate for medical use. They are composed of a lower level of NaCl and unnecessary substances, and have a higher water and mineral content. 2. The 9~30 g of NaCl included in the physiological saline matches the ratio of a normal human body. However, if the saline is used for water supply, it should be improved because the recommended amount is much lower. 3. Medicine that includes NaCl is applied for lessening the congestion of the nasal cavity, alleviating cornea swelling, or for a lack of water. NaCl can also be used for washing contact lenses as well as cleaning the mucous membrane of the eyes and nose. 4. Salt relieves anger, detoxifies, induces vomiting, builds strong muscles and bones, gives energy, slows aging, and ultimately improves health. 5. Salt treats many diseases including: cardiovascular, hematosis, respirometer, obstetric, musculoskeletal, mineral supplement, eye, teeth and skin issues, etc.. However, salt is not used for treating asthma, cough, or other ailments mainly affecting the vascular system. 6. While NaCl in salt absorbs water and the vascular constriction results in higher blood pressure, the pressure induced from salt is actually a physiologically temporary rise. Rather, salt helps remove oil from the body and its potassium lowers blood pressure. Conclusions : It was suggested that salt pharmacopuncture of Korean sun-dried salt and processing salt should be made available for adjusting the physiological salt concentration and control of the Na side effects, therefore it would be useful in the treatment of diseases.

• Journal of Families and Better Life
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• v.29 no.3
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• pp.43-57
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• 2011

Chronic mental-handicapped people are lacking in non-verbal expression such as eye contact, intonation, voice volume, facial expression, and gesture as well as the contents of speech, speak with a monotonous voice, fail to be vivid and clear in voice, and have absence of expression, thereby bringing about difficulty even for social adjustment and about low self-esteem. Accordingly, the purpose of this study was to examine effectiveness for enhancing self-expression and self-esteem by applying music therapy to the chronic mental-handicapped. The subjects were the chronic mental-handicapped who receive rehabilitation service at the community rehabilitation center, and who have over 10 years in the duration of disease. 1he music therapy activity was progressed with totally 14 sessions during 7 weeks with twice a week. This study confirmed t-test that is verification of difference in the mean, in order to examine difference between before and after music therapy in self-expression and self-esteem of the chronic mental-handicapped, and researched into qualitative case. The findings are as follows. First, as a result of score in self-expression scale, the significant improvement was shown after music therapy compared to before music therapy. The significant difference was indicated in verbal self-expression, phonetic self-expression, and non-verbal self-expression, which are its sub-spheres. Thus, the conclusion was obtained as saying that music therapy is effective for enhancing self-expression. Second, as a result of score in self-esteem scale, the significant difference was shown after music therapy compared to before music therapy. Thus, the conclusion was obtained as saying that music therapy is effective for enhancing self-esteem. Through the above results, the music therapy showed effectiveness of self-expression ability and self-esteem in the chronic mental-handicapped at the community rehabilitation center, thereby having been confirmed to be possibly utilized as rehabilitation program for the social skill ability and the social adjustment of the chronic mental-handicapped.