• 재활복지
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• v.22 no.3
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• pp.69-91
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• 2018

This study aims to identify factors of life satisfaction of the adults with developmental disabilities, focusing on the comparison between young and old. Data are collected through in-depth interview of the adults with developmental disabilities as well as via workers proxy responses at the group home. Regression model analysis is conducted based on 387 cases. The result shows that the young adults with developmental disabilities are more likely to satisfied with life when they evaluate job performance of workers at the group home and when they are more actively involved in community activities. For the old adults with developmental disabilities, life satisfaction is positively associated with their evaluation of job performance of workers at the group home as in the young adults. In addition, life satisfaction of the old adults is higher when they feel less fatigue. It is also higher for those with more choices on residence and higher level of social activities. The findings reveals that enhancement of life satisfaction for the old adults with developmental disabilities dwelling at group home require supports and services for health and social activities different from other ages. It shares the general ideas that service efforts should be made for needs and desires of the recipients. The present study suggests to expand our research interests to include the disabled in danger of early aging, such as the persons with Down Syndrome and the persons with intellectual disability and cerebral palsy, and look into their particular needs.

• Health Policy and Management
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• v.17 no.1
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• pp.28-49
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• 2007

Organizational culture has been, by and large, regarded as one of the most significant factors to manage organizations. Especially the understanding of empowerment is pivotal, leading to explain organizational cultures. For hospital workers whose services are closely related to quality and performance of their hospitals, empowerment is now called upon more than ever before. This study is intended to investigate the relationship between organizational culture types and hospital workers' empowerment levels. The data were collected from 589 hospital workers at one university hospital and two general hospitals using the self reported questionnaire from Jan.9 to Jan.20 in 2004. The findings were as follows: 1. Empowerment levels were significantly different among the four organizational culture types. Developmental culture group showed the highest empowerment score(3.74), and next were group culture(3.64), rational culture(3.62), and hierarchial culture(3.46). 2. There was a significantly positive correlation between group culture and empowerment(r=.298, p<.000), between developmental culture and empowerment(r=.295, p<.000). But there was not a significantly correlation between hierarchial culture, and between rational culture. 3. According to the multiple regression analysis, self-esteem(${\beta}$=.417, p<.001), position (${\beta}$=-.190, p<.001), self-control(${\beta}$=.185, p<.001), and age(${\beta}$=.169, p<.01) were significant among general properties for organizational empowerment. As for organizational cultures, developmental culture(${\beta}$=.165, p<.001), group culture(${\beta}$=.099, p<.01), and rational culture (${\beta}$=.063, p<.05) were significant other than hierarchial culture. In conclusion, it is necessary to promote group culture and developmental culture to enhance hospital worker's empowerment level, and this article elucidates that understanding the organizational culture embedded in each organization is important for efficient management of organization.

• International Journal of Industrial Entomology and Biomaterials
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• v.29 no.2
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• pp.153-161
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• 2014

The aim of this study is to investigate the effects of ambient thermal environments on the development of swallowtail butterflies (Sericinus montela Gray). Developmental durations and survival rates of S. montela were examined at two crucial developmental stages, embryonic and larval development, at varying temperatures ranging from $15^{\circ}C$ to $35^{\circ}C$. As expected, our results indicated that increasing temperatures decreased the developmental duration and survival rate of the eggs. However, the larvae and pupae showed maximum survival rates at $20.0^{\circ}C$ and $25.0^{\circ}C$, and the represented durations were similar to those of the eggs. Larval development was stage-specific, revealing that the fourth and fifth instars at the later stages were more susceptible to temperature variation. When considering both parameters, the optimal development of S. montela occurred within the temperature range of $20.0-25.0^{\circ}C$. The lower threshold for the complete development of S. montela from eggs to eclosion of adults was calculated at $10.6^{\circ}C$ by linear regression analysis. The estimated value is similar to that of other endemic insects distributed in temperate climate zones, which indicates that S. montela belongs to a small group of swallowtails adjusted to low ambient temperatures. From the results, we predict that the full development of S. montela could be achieved within the temperature range of $17.5-30.0^{\circ}C$. Embryonic development ceased at both test temperature extremes, and no further larval development proceeded after the third instar at $35.0^{\circ}C$. These results suggest that embryogenesis can be significantly influenced by slight variations in the ambient thermal environment that fall below the optimal range.

• Journal for History of Mathematics
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• v.20 no.4
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• pp.23-48
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• 2007

This study begins from posing a problem, 'formal introduction of mathematical induction in school mathematics'. Most students may learn the mathematical induction at the level of instrumental understanding without meaningful understanding about its meaning and structure. To improve this didactical situation, we research on the historical progress of mathematical induction from implicit use in greek mathematics to formalization by Pascal and Fermat. And we identify various types of thinking included in the developmental process: recursion, regression, analytic thinking, synthetic thinking. In special, we focused on the role of regression in mathematical induction, and then from that role we induce the implications for teaching mathematical induction in school mathematics.

• Horticultural Science & Technology
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• v.29 no.3
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• pp.181-186
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• 2011

To predict the bud bursting date of 'Campbell Early' grapevines, the bud developmental rate (DVR) models were constructed. The DVRs for bud bursting were calculated from the demanded times at controlled air temperatures. The DVRs were examined on the 'Campbell Early' grapevines incubated in three different temperatures at 4.6, 11.8, and $16.6^{\circ}C$. The DVR increased exponentially or linearly on the air temperature with a slope of about 0.0019. The DVR equations were computed as $DVR=0.0249+0.0020e^{0.1654x}$ or DVR = 0.0019x + 0.0187. These DVR equations offered developmental indices and predicted dates for bud bursting with air temperature data. The DVR equations were validated to the bud bursting data observed in the field. When bud bursting dates were calculated with daily temperature data, the root mean squared error (RMSE) between the observed and the predicted dates was less than 4 days. When those were calculated with hourly temperature data, on the other hand, the RMSE was less than 3 days. These results suggest that the DVR models are useful to predict bud bursting date of 'Campbell Early' grapevines.

• Korean Journal of Child Studies
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• v.16 no.2
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• pp.49-63
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• 1995

The purpose of the present study was to investigate effective parental controls by age of child. The subjects participating in this study were 10, 12, 15, and 18-year-old school boys residing in Seoul. A total of 1,468 boys was used in the final analysis. Factor analysis and multiple regression of SPSS $PC^+$ were utilized to test the hypotheses. The findings of the analysis showed that the impact of various parental controls on antisocial behavior varied with developmental stages of the children. Younger boys were more susceptible to direct controls, while indirect controls proved more effective for older youngsters.

• Development and Reproduction
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• v.17 no.2
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• pp.111-119
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• 2013

Golden hamsters reproduce in a limited time of a year. Their sexual activities are active in summer but inactive in winter during which day length does not exceed night time and environmental conditions are severe to them. The reproductive activities are determined by the length of light in a day (photoperiod). Melatonin is synthesized and secreted only at night time from the pineal gland. Duration of elevated melatonin is longer in winter than summer, resulting in gonadal regression. The present study aimed at the influences of continuous melatonin treatments impinging on the gonadal function in male golden hamsters. Animals received empty or melatonin-filled capsules for 10 weeks. They were divided into long photoperiod (LP) and short photoperiod (SP). All the animals maintained in LP (either empty or melatonin-filled capsules) showed large testes, implying that melatonin had no effects on testicular functions. Animals housed in SP displayed completely regressed testes. But animals kept in SP and implanted with melatonin capsules exhibited blockage of full regression by SP. These results suggest that constant release of melatonin prohibits the regressing influence of SP.

• Research in Community and Public Health Nursing
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• v.13 no.1
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• pp.89-97
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• 2002

Purpose: The purpose of this study is to explore the validity of the application of the Denver II developmental screening test to Korean children. This screening test. which was developed and standardized in United States. was designed to screen for developmental delay in Korea. and to compare the levels of development of Korean children with the development of children from the U.S. Method: Quota sampling. NP To facilitate field sampling. the age range used from 0 to 6 years old. was split into 10 different age groups. Sample size was estimated according to residence. 1.054 children were recruited from Seoul's metropolitan. urban and rural areas. NP To fill the quota established. the Recruitment and testing of children was done at public health centers, pediatric outpatient clinics of general hospitals and a child care center. The 25, 50, 75 and 90 percentiles were identified by using logistic regression analysis and were calculated as norms. The items in which the ages of both 50 and 90 percent passing differed more than 20 percent by the calculation was identified for comparison. NP Result: There were significant differences found in 45 items between Korean children and the children from the City of Denver as it relates to age differences. 90% of the sample passed items among 125 items from 4 sectors, e.g., personal- social. fine motor adaptive, language, and gross motor sectors. Korean children were found to be advanced in 9 items, whereas there were significant differences found in 38 items in our comparison of the two countries for age differences when 50% of sample pass items. Korean children were found to be advanced in 16 items. NP Conclusion: The result showed that there was a discrepancy in the developmental norms. It could be explained by the differences in the developmental environment. including child rearing patterns and ethnicity. Therefore, a restandardization of the Denver Screening Test is necessary as it relates to its application on Korean children. This restandardization is necessary in order to avoid both under and over-referrals of children with developmental abnormality. The modification of items in the language sector is especially suggested.

• The Journal of the Korea Contents Association
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• v.16 no.6
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• pp.334-344
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• 2016

The purpose of this research is to investigate usage related predictors to activate Adult Guardianship System of People with Developmental Disabilities. To achieve the purpose of this research, we have analyzed the survey of parents of People with Developmental Disabilities usage needs for Adult Guardianship System which is based on the Andersen's behavioral model. The study utilized data from 2011 Welfare Needs Assessment of Seoul middle and senior-aged Family with Developmental Disabilities, and the analysis method, the study applied used SPSS 22.0, frequency analysis, descriptive statistics analysis, logistic regression analysis. According to the result, the usage needs for Adult Guardianship System increases meaningfully if the parents does not have occupation, and the subject of Adult Guardianship System is male. In income and the social security system wise, the usage needs for Adult Guardianship System show remarkably large rating if the average income is high and the desire to be cared by others is high. But in case of People with Developmental Disabilities, communication skills, the degree of disability, burden of caring does not have effect on the usage needs for Adult Guardianship System. The conclusion for this research is, first, to activate vigorous usage of Adult Guardianship System, the government intervention is required. Second, the following study is needed to explain to the concept of the needs caring by others and the cultural factors relating to the usage needs for Adult Guardianship System.

• International Journal of Industrial Entomology and Biomaterials
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• v.21 no.2
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• pp.180-183
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• 2010

This study was performed to investigate the temperature-dependent development, longevity and oviposition of an indigenous larval parasitoid, Meteorus pulchricornis, on tobacco cutworm, Spodoptera litura. M. pulchricornis were reared at nine constant temperatures between 15 and $35^{\circ}C$. The developmental times of each three developmental stage decreased from 38.7 to 16.3 d between 15 and $30^{\circ}C$. However, M. pulchricornis showed longer developmental time at $32.5^{\circ}C$ (9.5, 7.7 and 17.2 days for each three developmental stage) than at $30^{\circ}C$ (8.9, 7.3 and 16.3 days for each three developmental stage). Immature M. pulchricornis could not develop any more at $35^{\circ}C$. The lower developmental threshold estimated by linear regression equation for the egg to cocoon, cocoon to adult emergence and egg to adult emergence were 5.1, 4.6 and $4.5^{\circ}C$. The thermal constant for each of the three stages were 217.2, 176.2 and 403.8 degree-days, respectively. When no food or 50% honey solution as a food source is provided for M. pulchricornis, the parasitoid survived for 8.3 and 55.9 days at $25^{\circ}C$, respectively. M. pulchricornis females laid 5.2 eggs daily and total of 131.6 eggs at $25^{\circ}C$ until it died. Peak age-specific fecundity was observed on $14^{th}$ day (9.6 cocoons) after parasitoid emergence and gradually decreased thereafter.