• Imaging Science in Dentistry
• /
• v.44 no.2
• /
• pp.155-160
• /
• 2014

Purpose: The purposes of this study were to develop a workstation computer that allowed intraoperative touchless control of diagnostic and surgical images by a surgeon, and to report the preliminary experience with the use of the system in a series of cases in which dental surgery was performed. Materials and Methods: A custom workstation with a new motion sensing input device (Leap Motion) was set up in order to use a natural user interface (NUI) to manipulate the imaging software by hand gestures. The system allowed intraoperative touchless control of the surgical images. Results: For the first time in the literature, an NUI system was used for a pilot study during 11 dental surgery procedures including tooth extractions, dental implant placements, and guided bone regeneration. No complications were reported. The system performed very well and was very useful. Conclusion: The proposed system fulfilled the objective of providing touchless access and control of the system of images and a three-dimensional surgical plan, thus allowing the maintenance of sterile conditions. The interaction between surgical staff, under sterile conditions, and computer equipment has been a key issue. The solution with an NUI with touchless control of the images seems to be closer to an ideal. The cost of the sensor system is quite low; this could facilitate its incorporation into the practice of routine dental surgery. This technology has enormous potential in dental surgery and other healthcare specialties.

• Journal of Oriental Neuropsychiatry
• /
• v.19 no.2
• /
• pp.195-207
• /
• 2008

Objective: The purpose of this study was to compare satisfaction of practice and clinical skill in different participation learning and observation learning, and to offer the basic data to promote quality of nursing education. Method: The study used a quasi-experimental, nonequivalent control group post-test design. The subjects were 62 nursing students of K college in Jeonbuk, and the period of data gathering was limited from 19 Nov. 2006 to 30 Nov. 2006. Experience group was taught by hand-on education and control group was taught by conventional education. The instrument tools included self-efficacy, satisfaction of practice and clinical skill. The collected data were analyzed by SPSS-PC programme. Result: The results of this study were as follows: There was statistically a significance difference between the two group about satisfaction of practice(t=2.011 p=.043), and clinical skill(t=11.997, p=.000). Self-efficacy showed a significantly positive correlation with satisfaction of practice(r=.476, p=.000) and clinical skill(r=.178, p=.014). Also, satisfaction of practice showed a significantly positive correlation with clinical skill(r=.l82, p=.000). Conclusion: In conclusion, this study suggests that hand-on education is an effective learning method to nursing students. By utilizing hand-on education, makes nursing students plan self-directed nursing performance and improve their clinical skills.

• Journal of Chest Surgery
• /
• v.33 no.8
• /
• pp.643-647
• /
• 2000

From March 1988 to June 1994, 275 CarboMedics cardiac valve prostheses(199 mitral, 70 aortic and 3 tricuspid) were implanted in 226 consecutive patients(mean age 39 years, male/female 90/136) by one surgical team operating on adult cardiac patients at Kyungpook University Hospital. Total follow up represented 16,848 patient-months(mean 76 months) and follow up rate was 96%. One hundred and forty-nine patients(66%) wer in NYHA functional class III or IV preoperatively, and 204 patients(99.5%) were in class I or II postoperatively. Early mortality was 4.9% and late death was 9.3%. The actuarial survival at 81 months was 86.l2$\pm$3.1%. The linearized incidence of valve-related death, prosthetic valve thrombosis, anticoagulation-related hemorrhage, non-structural dysfunction and reoperation were 0.71%, 0.43%, 0.07%, 0.21%, and 0.14% respectively. The 81-month rate of freedom from all valve related complications and deaths including hospital mortality was 88.1$\pm$2.5%. Thee facts suggest that the CarboMedics cardiac valve has excellent result, low incidence of valve-related complications and no structureal deterioration.

• Journal of the Korean Society for Library and Information Science
• /
• v.12
• /
• pp.121-147
• /
• 1985

In the modern communicative age, the standards of the school libraries are the qualitative guarantee on the services of school libraries or school library media programs, as the guidline, the active guide, the policy documentation and criteria for the professional excellence. The standards of SLMP were revised the sixth time by the school library profession(ALA) with the members or agency of NEA in the U.S. There are the first standard was a quantitative; 'the Certain Report'(by A.L.A., 1920) appearing that the school library is the heart of the school, 2nd 1925; turning up the teaching material source and personel, 'School Libraries for today and tomorrow' (by AASL, 1945) incluseing the instructional materials and the 7th educational ideas in the quantitative feature, 'Standards for School Library Programs' (by AASL, 1960) expressing the instructional material center, communicative environment, learning and teaching laboratory, 'Standards for school media programs' (by DAVI & AASL, 1969) implicating the instructional resource, learning and teaching laboratory, the condition precedent of qualitative education for excellence, 'Standards for media programs; District/school (by AASL & AECT, 1975) containing the improving user's educational experience and personal freedom on the use of SLMP's services. Through changing the standards of SLMP in the US, We have known that the main educational idea in the standards are; (1) SLMP is the instructional force and resource for qualitative, excellence education by learning and teaching laboratory, instructional resource, communicative environment (2) SLMP is the actualizing force and resource for user's self-realization by intellectual and personal excellence, individualizing, humanizing and personalizing education.

• The Korean Journal of Pain
• /
• v.8 no.2
• /
• pp.390-393
• /
• 1995

Although spinal anesthesia has long been considered a safe technique, it is not without risk or side effect. Cauda equina syndrome is a rare but serious complication of spinal anesthesia. We have experience a case of cauda equina syndrome after spinal anesthesia. A twenty year old healthy male patient complained of pain, numbness, tingling sensation and motor weakness on his right lower extremity 8 hours after subarachnoid blockade. On the following day, the patient was noted to have a right L1 to S2 radiculopathy. Magnetic Resonance Imaging results were unremarkable. The patient sprained his ankle while trying to move down from the bed, so short leg splint was applied. Then he had additional right common peroneal nerve injury from the splint. His neurologic symptoms improved gradually thereafter, and three months postoperatively his electromyogram revealed improving stage from right common peroneal nerve palsy.

• Journal of the Korean Institute of Navigation
• /
• v.14 no.4
• /
• pp.17-30
• /
• 1990

Since L.A. Zadeh introduced the theory of fuzzy sets in 1965, E.H. Mamdani applied the theory to the steam engine control in 1974. Since then, scientists have shown a great deal of interests in its application to practical problems and the possibility of the application of the theory a more complicate system has been increasing greatly. In the fuzzy control, the qualitative knowledge and intuition that the operators of a system has acquired through their experience can be logically described by the Linguistic Control Rule(LCR). The algorithm of th control is made of the LCR, and th control of an object is performed by processing this algorithm implementing a computer. in this thesis, the fuzzy controller of the ship's steering system is devided into two systems, namely FC1 and FC2, according to their control function. FC1 is for the course keeping steering, wheress FC2 is for the altering of s ship's course. The characteristics of the control system were investigated through the digital computer simulation and the results were compared with those of the conventional steering system. It was found that the fuzzy control was more efficient than the conventional auto pilot system.

• Journal of the Architectural Institute of Korea Planning & Design
• /
• v.34 no.2
• /
• pp.85-94
• /
• 2018

This study tries to connect the 'four-elements metaphor' of Bachelard with architectural Images of Coop Himmelblau. Two basic terms of 'phenomenology of imagination' and 'material image' are explored firstly to understand the meaning and value of Bachelardienne four-elements in architectural discourse. The material images of air, fire, water, and clay are applied to the analysis of architectural experience of Busan Cinema Center(BCC) which is selected among works of Himmelblau by reason of its integrity of the four-elements' images. After elaborate Bachelardienne description of the images of BCC, the study examines whole Himmelblau's works since 1968 chronologically from the perspective of the four-elements' architectural images which are found in the analysis of BCC. The study of BCC could discover the images of air in two roofs, the images of fire in Double cone, the images of water in outdoor cinema, Dureraum square, flying brides, and the images of clay in Cinemountain and BIFF Hill. The chronological study found that Himmelblau had started their projects with the images of air in 1968 and tried the fire from 1978, and their regular examination of water and clay images had begun in mid 90's. After 2000, they could show a certain harmony of the four elements in their works.

• Research in Community and Public Health Nursing
• /
• v.7 no.2
• /
• pp.313-332
• /
• 1996

This study was conducted to grasp the condition of freshman's knowledge and attitudes on abortion and to offer the basic materials to prevent abortion in family planning and health promotion. The objects were comprised of 290 who volunteered from 3 Junior colleges. The material of this study was by questionaire(chronbach a=.8589, .8959) suited to the purpose of this research which has been made through studying references. All the questionaires were collected immediately without explanation. The data was collected from the 29th of April to the 17th of May in 1996. Analysis of the data was done utilizing SPSS program for percentage, $mean{\pm}$ standard deviation and ANOVA. The results are as follows: 1. General features of the objects of study. Mean age was 20.47, mean of brothers and sisters was 2.93. Those who had no experience in abortion with her mother was 59.0%, and the middle social level was the highest (95.5%). 2. The conditions of attitudes about abortion. 5 points were given to 'very affirming' and, 1 point was given to 'strong denial' the total average was 4.00, and the range was $4.83\sim2.99$. 3. The condition of knowledge about abortion. 5 point were given to 'very affirming' and, 1 point was given to 'strong denial', the total average was 2.75, the range was $3.65\sim2.18$. Also knowledge of abortion was 6.2 points. Knowledge of medical and therapeutic abortion was 9.4 points. Knowledge of the physical complications of abortion was 3.4 points. 4. Correlation between general features and attitude variables. Age groups may have a higher affirmative attitude score in abortion(F=8.097, p<.000). The having 2 sisters group may have a low attitude towards abortion(F=10.34l, p<.000). Experience in abortion with mother group may have a lower affirmative score concerning abortion (t=8.925, p<.000). 5. Correlation between general features and knowledge variables. Age groups may have a higher knowledge score in abortion (F=10.829, p<.000). The having brothers group may have more high knowledge in abortion(F=2.534, p<.050). The $22\sim23$ years group may have higher knowledge in abortion (F=3.075, p<.028). The having more than 2 sisters group have more higher knowledge in abortion(F=5.605, p<.004). The having more the 3 brothers group may have higher knowledge the physical complications in abortion(F=4.022, p<.019). 6. Correlation between regions of the major variables and knowledge, attitude variables. There was no significance in the statistics.

• The Korean Journal of Pain
• /
• v.4 no.2
• /
• pp.127-132
• /
• 1991

Recently a non-electronic, disposable and portable infusor(Baxter infusor with patient control module, Baxter health care Co., Deerfield IL 60015 USA: BI $\bar{c}$ PCM) has been developed that will deliver both a continuous drug infusion as well as allow the patient to deliver extra doses of medication on a demand basis under predetermined limitation of analgesics. Patients may also not require as high analgesic dose rate to control pain when the acceptable and tolerable level of pain relief can be maintained by this device. From April l99l, we have used a total l93 units of BI $\bar{c}$ PCM. These units consisting of two components which one made by a balloon reservoir(capacity 65 ml, flow rate 0.5 ml/hr) to store medication and to regulate the pump power(490 torr), and another two PCMs to regulate additional analgesic administration by patients demand at intervals of 1S minutes and 60 minutes. The dose administered to the patient can be varied by changing the concentration of the infusate within the balloon reservoir. These devices were utilized for the pain control of 44 patients. These patients were divided into two groups. Twenty seven cases had cancer pain and 17 cases had non-cancer pain. The Touhy needle(No. l8 G.) tip was inserted into the epidural space and was used to guide the catheter to the spinal nerve level corresponding to the most painful area. The device was connected to the opposite site of the catheter tip and was filled with 60 ml of mixture solution such as 0.5% bupivacaine 15 ml, morphine HCl 10 mg, trazodone 10 ml, Tridol 3 ml and normal saline 31 ml were administed as the initial dose. When the initial dose was less effective, the next dose could be varied by increasing the concentration of bupivacaine, by adding more morphine (5~10 mg), and by reducing the volume of normal saline. Using these modules of drug self administration, we experienced the following: 1) Improvement of patient's self titration of analgesic requirement was provided. 2) The patients anxiety with pain recurrence resulting from delays in administering pain control medication was decreased significantly. 3) The working load accompanying with the single bolus injection as the usual method was reduced remarkably. 4) There was urinary retention in 5 cases and pruritus in 4 eases which developed as side effects but respiratory depression and vomiting was not encountered in a single case.

• Transactions of the Korean Society of Mechanical Engineers B
• /
• v.35 no.11
• /
• pp.1205-1211
• /
• 2011

In this paper, we developed a pacemaker that can increase the efficacy of a left ventricular assist device (LVAD) and increase the survival rate for patients suffering end-stage heart failure. Because LVAD patients can experience arrhythmia, the pacemaker incorporated into the LVAD has the important role of sustaining sufficient blood circulation during arrhythmia. The electrode of the pacemaker is located at the apex of the left ventricle, where the VAD's inlet cannula is connected. This is efficient placement, in that the electrode can transmit electrical stimulation directly to the Purkinje fibers of the myocardium. The pacemaker can change the stimulation rate from 0 bpm to 191.4 bpm when a button is pressed on the external control module, and the pacemaker normally stimulates the heart at 60 bpm with 0.25 J of energy. We performed animal experiments to evaluate the performance and reliability of the combination of the LVAD and pacemaker. At pacemaker stimulation rates of 86.4 bpm, 100.2 bpm, 126.6 bpm, we recorded the ECGs, aortic pressures, and flow rates to analyze the heart loads.