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An Empirical Study on the Relationship between Technology Valuation and Performance in Ventures (벤처의 기술평가와 경영성과의 관계에 관한 연구)

  • Yang, Dong-Woo
    • Knowledge Management Research
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    • v.4 no.1
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    • pp.21-33
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    • 2003
  • The Purpose of this study is to prove empirically the relationship between technology valuation and performance in Ventures, while considering the uniqueness of Korean firms. We use technology score, marketability score, business attractiveness score as ex-ante independent variables, use firm's performance(sales, asset, operating income ratio, net income ratio etc) as ex-post dependent variables. Parametric analysis such as Paired T-test, ANOVA are applied in this paper. The results of Empirical analysis is summarized as follows. Firstly, operating income ratio and net income ratio are different in portfolios classified by technology score. Secondly, the growth rate of operating income is different in portfolios classified by technology score. Finally, this study has shown that technology score has possibility which it use the predictive variables of firm performances.

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A study on patients transferred to emergency medical center of university hospital -About reexamination status of patients transferred - (3차 의료기관 응급의료센터로 전원되는 환자에 대한 조사연구 - 중복 재검사에 관한 조사 -)

  • Yoou, Soon Kyu
    • The Korean Journal of Emergency Medical Services
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    • v.3 no.1
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    • pp.20-32
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    • 1999
  • The purpose of this retrospective research of 603 patients who were transferred to the emergency medical center of university hospital from 1 Jan, 1998 to 31 Jan, 1998 was making of basic data for emergency medical transfer system improvement countermeasure and the point at issue of overlapping reexamination ststus of patients transfered to emergency medical center of university hospital from 1,2 level hospital. The data analysis was done by SPSS, t-test, ANOVA, Pearson correlation. The results were as follows: 1. Male to female ratio was 1.7:1 and peak age group was patients over forties and under nine years of age(70.5%) 2. Traumatic patients were 17.8%, motor vehicle accident patients were 16.7% and Non-traumatic patients were 65.3%. Transferring hospital was divided into 2groups: primary hospital, secondary hospital. The majority was secondary hospital(73.3%). The result of symptom severity classification of patients transferred to 3rd emergency medical center was urgent patients 32.5%, emergency patients 33.58%, non-emergency patients 34.0% 3. Most highest score items amoung overlapping reexamination of patients transfered to emergency medical center of university hospital from 1,2 level hospital were CBC test, simple X-ray (0.93점), CBC test(0.97점), urin test(0.88점), chemistry test(0.94점), simple X-ray(0.98점), CT(0.42점), EKG(0.89점) amoung overlapping reexamination of motor vehicle accident patients were more higher reexamination score than traumatic patients and non-traumatic patients 4. CBC test(P<0.001), urin test(P<0.001), chemistry test(P<0.001), simple X-ray(P<0.001), CT(P<0.01), EKG(P<0.001) amoung overlapping reexamination of patients in 2 level hospital were more higher reexamination score than 1 level hospital patients 5. About symptom severity classification of patients transferred to 3rd emergency medical center, CBC test(P<0.001), urin test(P<0.001), chemistry test(P<0.001), simple X-ray(P<0.01), CT(P<0.001), EKG(P<0.001) amoung overlapping reexamination items in urgent patients were more higher reexamination score than other patients 6. Influencing variation for overlapping reexamination in hospital was CBC test(P<0.001), CT (P<0.001), MRI (P<0.05).

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The Correlation Analysis of BMD in Proximal Femur and Spine with Dual Energy X-ray Absorptiometry (이중에너지 X-ray 흡수법을 적용한 근위 대퇴골 및 요추부 골밀도 검사의 상관관계 분석)

  • Han, Man-Seok;Cho, Dong-Heon
    • Journal of the Korea Society of Computer and Information
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    • v.17 no.9
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    • pp.165-169
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    • 2012
  • To analogize the result of the test through explaining the correlation of bone mineral density (BMD) test value between proximal femur and lumbar spine at age. It is based on 62 cases who visited the out-patient department. They were classified into three groups by age, group I (30~40 yr) and II (40~60 yr) and III (60~80 yr). Then we evaluated the average and the degree of correlation between the three groups and analyzed the correlation of the three sites according to the BMD result and T & Z-score through the t-test analysis. The results are listed below, first, if rise in age T-score is lower and over 60age occurred osteopenia, second, compared three groups, the correlation of BMD results was some of the highest between Lumbar spine and Proximal femur of T-score & Z-score. the correlation of BMD results is very high. It is regarded that there will be a clinical availability which can analogize the result of a part by using the result of the other part.

The cutoff criterion and the accuracy of the polygraph test for crime investigation (범죄수사를 위한 거짓말탐지 검사(polygraph test)의 판정기준과 정확성)

  • Yu Hwa Han ;Kwangbai Park
    • Korean Journal of Culture and Social Issue
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    • v.14 no.4
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    • pp.103-117
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    • 2008
  • The polygraph test administered by the Korean Prosecutors Office for crime investigations customarily uses the score of -12 as the cutoff point separating the subjects who lie from those who tell the truth. The criterion used by the KPO is different from the one (-13) suggested by Backster (1963) who invented the particular method for lie detection. Based on the signal detection theory applied to the real polygraph test data obtained from real crime suspects by the KPO, the present study identified the score of -8 as an optimal criterion resulting in the highest overall accuracy of the polygraph test. The classification of the subjects with the score of -8 as the criterion resulted in the highest accuracy (83.17%) compared with the accuracies of classifications with the Backster's criterion (76.24%) and the KPO's criterion (80.20%). However, the new criterion was also found to result in more false-positive cases. Based on the results from the present study, it was recommended to use the score of -8 as the criterion when the overall accuracy is important but the score of -12 or -13 when avoiding false-positive is more important than securing the overall accuracy.

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Gaps-In-Noise Test Performance in Children with Speech Sound Disorder and Cognitive Difficulty

  • Jung, Yu Kyung;Lee, Jae Hee
    • Journal of Audiology & Otology
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    • v.24 no.3
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    • pp.133-139
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    • 2020
  • Background and Objectives: The Gaps-In-Noise (GIN) test is a clinically effective measure of the integrity of the central auditory nervous system. The GIN procedure can be applied to a pediatric population above 7 years of age. The present study conducted the GIN test to compare the abilities of auditory temporal resolution among typically developing children, children with speech sound disorder (SSD), and children with cognitive difficulty (CD). Subjects and Methods: Children aged 8 to 11 years-(total n=30) participated in this study. There were 10 children in each of the following three groups: typically developing children, children with SSD, and children with CD. The Urimal Test of Articulation and Phonology was conducted as a clinical assessment of the children's articulation and phonology. The Korean version of the Wechsler Intelligence Scale for Children-III (K-WISC-III) was administered as a screening test for general cognitive function. According to the procedure of Musiek, the pre-recorded stimuli of the GIN test were presented at 50 dB SL. The results were scored by the approximated threshold and the overall percent correct score (%). Results: All the typically developing children had normal auditory temporal resolution based on the clinical cutoff criteria of the GIN test. The children with SSD or CD had significantly reduced gap detection performance compared to age-matched typically developing children. The children's intelligence score measured by the K-WISC-III test explained 37% of the variance in the percent-correct score. Conclusions: Children with SSD or CD exhibited poorer ability to resolve rapid temporal acoustic cues over time compared to the age-matched typically developing children. The ability to detect a brief temporal gap embedded in a stimulus may be related to the general cognitive ability or phonological processing.

Gaps-In-Noise Test Performance in Children with Speech Sound Disorder and Cognitive Difficulty

  • Jung, Yu Kyung;Lee, Jae Hee
    • Korean Journal of Audiology
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    • v.24 no.3
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    • pp.133-139
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    • 2020
  • Background and Objectives: The Gaps-In-Noise (GIN) test is a clinically effective measure of the integrity of the central auditory nervous system. The GIN procedure can be applied to a pediatric population above 7 years of age. The present study conducted the GIN test to compare the abilities of auditory temporal resolution among typically developing children, children with speech sound disorder (SSD), and children with cognitive difficulty (CD). Subjects and Methods: Children aged 8 to 11 years-(total n=30) participated in this study. There were 10 children in each of the following three groups: typically developing children, children with SSD, and children with CD. The Urimal Test of Articulation and Phonology was conducted as a clinical assessment of the children's articulation and phonology. The Korean version of the Wechsler Intelligence Scale for Children-III (K-WISC-III) was administered as a screening test for general cognitive function. According to the procedure of Musiek, the pre-recorded stimuli of the GIN test were presented at 50 dB SL. The results were scored by the approximated threshold and the overall percent correct score (%). Results: All the typically developing children had normal auditory temporal resolution based on the clinical cutoff criteria of the GIN test. The children with SSD or CD had significantly reduced gap detection performance compared to age-matched typically developing children. The children's intelligence score measured by the K-WISC-III test explained 37% of the variance in the percent-correct score. Conclusions: Children with SSD or CD exhibited poorer ability to resolve rapid temporal acoustic cues over time compared to the age-matched typically developing children. The ability to detect a brief temporal gap embedded in a stimulus may be related to the general cognitive ability or phonological processing.

The relationship between neck pain and psychological state in female office workers. (경항부 통증과 심리적 상태와의 상관성에 관한 연구)

  • Jung, Jae-Yung;Kim, Sung-Su
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.4 no.2
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    • pp.1-12
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    • 2009
  • Objectives : The purpose of this study was to investigate the relationship between pain and psychological state in female office workers with neck pain. Methods : Experimental group of 31 healthy subjects complained of neck and arm discomfort related to computer use which lasted more than 3 months in the past year and was present in the past 7 days as well as on the day of test. Outcomes were assessed by meridian-electromyography(MEMG), Neck Disability Index(NDI), Visual Analog Scale(VAS), Beck Depression Inventory(BDI), Stress Reaction Inventory(SRI), Holmes & Rahe Social Readjustment Rating Scale(SRRS). Results : The NDI score and BDI score had a correlationship(r=0.48), and the NDI score and SRI score also had a correlationship(r=0.48), significantly. The NDI score and contraction power of upper trapezius by MEMG had a correlationship significantly, but with the other muscles the NDI score didn't have correlationships. The NDI score and the SRI score were significantly higher in depression group(BDI score ${\circ}{\surd}$14). The contraction power of trapezius by MEMG was significantly lower in depression group. Conclusions : The results suggest that mental stress can be a major risk factor of neck pain in female office workers.

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Difference in Taste of Herbal Medications among Sasang Constitution Groups (탕약 맛에 대한 사상체질별 차이 연구)

  • Son, Han-Beom;Kim, Ji-Hwan;Park, Seong-Sik;Bae, Hyo-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.27 no.2
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    • pp.288-296
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    • 2015
  • Objectives Purpose of this study was to examine difference of taste score in herbal medicine among Sasang Constitution groups. Methods Seventy-three healthy students tasted salt solution, sucrose solution, four herbal medications (Hyangsayangwi-tang, Yanggyeoksanhwa-tang, Yeoldahanso-tang, and Mihudeungsikjang-tang), and then immediately scored intension of stimuli for each taste which they felt. Data of sixty-four final participant were analyzed by SPSS version 18, as follows: frequency analysis for characteristic data of participants, Kruskal-wallis test for difference in taste score among Sasang Constitution groups, and Pearson correlation analysis for the correlation between taste score of single taste stimuli and taste scores of herbal medications. Results Significant difference was shown in sweet taste score of Hyangsayangwi-tang among Sasang Constitution groups, that Soyangin showed higher sweet taste score of Hyangsayangwi-tang than Soeumin's. No significant difference was shown in other tastes or other herbal medications. Positive correlation between taste score of sucrose solution and sweet taste score of herbal medication was shown in Soemin. Conclusions There is difference in sweet taste score of Hyangsayangwi-tang among Sasang Constitution groups. There is positive correlation between sweet taste score of sucrose solution and herbal medication. This research has limitation, so well-designed research is needed.

Effect of Direction to be Used for the Timed Up and Go Test on Walking Time in Stroke Patients (일어서서 걷기 검사 시 회전 방향이 뇌졸중 환자의 보행 시간에 미치는 영향)

  • Lee, Geon;Cho, Cheol-hoon;Lim, Kyung-jin;Lee, Joo-hyun;Yoon, Gyu-ri;Woo, Young-keun
    • Physical Therapy Korea
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    • v.23 no.2
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    • pp.11-19
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    • 2016
  • Background: In the stroke patients with the characteristics of hemiplegic gait, turning direction of the affected and unaffected side influences turning time. Therefore, it is important to investigate the walking response to turning directions in stroke patients. Objects: This study aimed to measure the walking time while turning direction in hemiplegic patients depending on balance ability measured by Berg Balance Scale. Methods: A group of forty-five subjects with stroke (Berg Balance Scale score${\geq}46$ were twenty-eight, Berg Balance Scale score${\leq}45$ were seventeen) were enrolled in this study. Subjects were asked to perform the Timed Up and Go test. Testing indications included two directions for turning in each subject. These indications were for turning toward the affected and unaffected side in stroke patients. The duration of total analysis duration, sit to stand phase, stand to sit phase, mid-turning phase, and end turning phase were recorded. The obtained data were analyzed by using paired t-test and Wilcoxon signed rank test in the group that are below and above 45 points of Berg Balance Scale score. The significance level was set at ${\alpha}=.05$. Results: There were significant increase time in the analysis duration and end turning phase duration while subjects were turned the unaffected side in stroke patients that presented a Berg Balance Scale score${\leq}45$ (p<.05). However, the comparison between the affected side and the unaffected side in the stroke patients with Berg Balance Scale score${\geq}46$, revealed no significant differences of the measured parameters. Conclusion: This finding should be suggested in the specific definition of turning direction for evaluation with Timed Up and Go test in the Berg Balance Scale score${\leq}45$, and other intervention for hemiplegic patients need to be suggested the direction of turning during walking training program.

The Effect of Mentoring Participation on Science Teachers' General Teaching and Science Teaching Efficacies (멘토링 참여 경험이 과학교사의 일반교수효능감과 과학교수효능감에 미치는 영향)

  • Kang, Kyunghee
    • Journal of The Korean Association For Science Education
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    • v.37 no.6
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    • pp.951-960
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    • 2017
  • The purpose of this study is to examine the effects of mentoring in enhancing the professionalism of low-experience science teachers on their general teaching and science teaching efficacies. The mentoring for low-experience science teachers was conducted on 24 science teachers with less than three years of experience over a nine-month period between April and December, 2016. The questionnaires developed by advanced researches were modified and used to test the teachers' general teaching and science teaching efficacies. As the result of a pre-test, the mean science teaching efficacy score was 3.02 points. In particular, the mean science teaching self-efficacy score was 2.86 points and the mean science teaching outcome expectancy score was higher at 3.17 points. In the domain of science teaching outcome expectancy, the mean for female teachers was higher than that of male teachers, and the mean for middle school teachers was higher than that of high school teachers in every domain. However, this result is not statistically significant. The results of a post-test showed that the mean science teaching efficacy score of mentee teachers increased to 3.08 points over the pre-test. In particular, the mean science teaching self-efficacy score was 3.11 points and the mean science teaching outcome expectancy score was 3.04 points in the post-test. This presents that the mentoring training conducted was effective in improving the science teaching efficacy of mentee teachers.