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박영록,홍순기,허철,김헌주,한용표 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.6
The authors analyzed 32 cases with lower cervical spine injuries according to their etiologies, the findings of cervical spine X-ray and computed tomography, initial neurological grading scales and time of operation. The results are summarized as follow : 1) Lower cervical spine injuries occurred in 32 of the 49 cervical spine injuried patients. 2) The important factors affecting on outcome were the initial neurological state(p=0.038) and the degree of spinal canal narrowing on cervical computed tomogram(p=0.046). 3) The degree of prevertebral soft tissue swelling and displacement of vertebral body on initial cervical spine X-ray did not significantly affect on outcome(p=0.052). 4) The most suitable operative time for lower cervical spine injuries was 10∼20 days after injuries and the mortality was 9.3%.
박성순,송주호 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3
This study analyzed the gait form before and after exercise, choosing 3 men and women from among 21 people over 65 years old who have taken the training program for 3 months. The results are as follows: 1. The time of supporting time after exercise increases more than before. non-supporting time decreases. 2. The steps are not much different after training. But the distance of steps is longer after training. 3. The change of angle of ankle, knee, hip is similar with the pattern of normal steps. 4. The change of angle of back and front of body is different. The step angle of right foot is bigger than before training.
LED를 이용한 복합레진의 광조사시, 중합수축의 속도와 양, 미세경도에 관한 연구
박성호,김수선,조용식,이순영,김도현,장용주,문현승,서정원,노병덕 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4
This study evaluated the effectiveness of the light emitting diode(LED) units for composite curing. To compare its effectiveness with conventional quartz tungsten halogen (QTH) light curing unit, the microhardness of 2mm composite, Z250, which had been light cured by the LEDs (Ultralume LED2, FreeLight, Developing product D1) or QTH (XL 3000) were compared on the upper and lower surface. One way ANOVA with Tukey and Paired t-test was used at 95% levels of confidence. In addition, the amount of linear polymerization shrinkage was compared between composites which were light cured by QTH or LEDs using a custom-made linimeter in 10s and 60s of light curing, and the amount of linear polymerization shrinkage was compared by one way ANOVA with Tukey. The amount of polymerization shrinkage at 10s was XL3000 > Ultralume 2, 40, 60 > FreeLight, D1 (P<0.05) The amount of polymerization shrinkage at 60s was XL3000 > Ultralume 2, 60 > Ultralume 2, 40 > FreeLight, D1 (P<0.05) The microhardness on the upper and lower surface was as follows; <본문 참조> It was concluded that the LEDs produced lower polymerization shrinkage in 10s and 60s compared with QTH unit. In addition, the microhardness of samples which had been cured with LEDs was lower on the lower surfaces than the upper surfaces whereas there was no difference in QTH cured samples.
박성호,이순영,조용식,김수선,이창재,김영주,이봉희,이광성,노병덕 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4
The purpose of present study was to evaluate the polymerization shrinkage stress and amount of linear shrinkage of composites and compomers for posterior restoration. For this purpose, linear polymerization shrinkage and polymerization stress were measured. For linear polymerization shrinkage and polymerization stress measurement, custom made Linometer (R&B, Daejon, Korea) and Stress measuring machine was used (R&B, Daejon, Korea). Compositers and compomers were evaluated; Dyract AP (Dentsply Detrey, Gumbh, German) Z100 (3M Dental Products, St. Paul, USA) Pyramid (Bisco, Schaumburg, USA) Synergy Compact (Coltene, Altstatten, Switzerland), Heliomolar (Vivadent/Ivoclar, Liechtenstein), and Compoglass (Vivadent Ivoclar/Liechtenstein) were used. 15 measurements were made for each material. Linear polymerization shrinkage or polymerization stress for each material was compared with one way ANOVA with Tukey at 95% levels of confidence. For linear shrinkage ; Heliomolar, Surefil<Synergy Compact, Z100<Dyract AP<Pyramid, Compoglass F (p<0.05) For Shrinkage stress ; Heliomolar < Z100, Pyramid<Synergy Compact, Compoglass F<Dyract AP<Heliomolar HB, Surefil (p<0.05)
박순주 성인간호학회 2002 성인간호학회지 Vol.14 No.3
Purpose: In this study, symptom experience and quality of life(QoL) in patients with Bronchial asthma(BA) and Bronchiectasis(BRC) were examined to develop nursing strategies. Method: Data collection was done with 61 outpatients with BA and 43 outpatients with BRC in January and February, 2001. Data analyses were performed using SPSS Win 8.0. Result: The mean scores of symptom experience were 11.3 and 10.8 in patients with BA and BRC, respectively. The mean score of QoL was 18.0 in patients with BA and 19.2 in patients with BRC. There were statistically significant differences in the score of the symptom experience according to sex and occupation in patients with BA, and to the religion and occupation in patients with BRC. The mean score of QoL had significant difference according to the income in patients with BA, but had no significant differences in patients with BRC. The score of QoL had significantly correlated with the degree of symptom experience in patients with BA(p=.000) and with BRC(p=.022). Conclusion: The degree of symptom experience negatively correlated with QoL. Therefore, symptoms experienced by patients should be considered in development of nursing strategies for patients with BA and BRC.
Eethyl benezylidencyanoacetate 유도체에 대한 thiophenol 첨가 반응의 속도론적 연구
朴茂淳,金文執,崔元植,黃善岩,孟柱煬 순천향대학교 1991 논문집 Vol.14 No.1
Reaction of benzaldehyde derivatives with ethylacetate afforded ethylbenzylidenecyanoacetate. Especially, the crystal structure of ethyl p-methoxybenzylidenecyanoacetate were demonstrated by X-ray diffrection method. The crystal structure is only exist in E-form. The kinetic studies on the mechanism of nucleophilic addition of thiophenol to ethyl benzylidenecyanoacetate have been investigated by UV-spectrophotomery and the rate equation which can be applied over wide pH range was obtained. From the rate equation, effect of generalbase and substituent, the fellowing reaction proposed. Below pH 3.0, thiophenol added to the double bond, while above pH9.0 thiophenoxide ion added to the double bond. In the range of pH from 3.0 to 9.0, these reaction occurred competitively.