• Child Health Nursing Research
• /
• v.9 no.4
• /
• pp.349-358
• /
• 2003

Purpose: This study aimed at not only suggest some ideas useful in planning and doing the safety education in the elementary schools in the near future putting into test the safety education proposal which has been developed by researchers in accordance with the national 7st education courses but also improve health of the children through taking right safety knowledge and sound safety attitude. Method: For this study 140 student are selected from 3-5th grade of the elementary school in Kyoungki-Do and Kwangwon-Do and have been taught the safety education during 10weeks, 10times. Result: 1) After the safety education, knowledge about the injury prevention of the children show to be significantly different from that they had before(t=-9.156, p=.000). 2) In order to look into any effect of the attitude about injury prevention after the safety education there were significant difference(t=-3.755, p=.000). Conclusion: As the findings of the study indicating that safety education expand the correct knowledge about injury prevention and have more affirmative and sound attitude about injury prevention. So it may be concluded that, safety education have the positive effect both knowledge and attitude about injury prevention among elementary school children.

• Journal of Korean Public Health Nursing
• /
• v.20 no.2
• /
• pp.183-194
• /
• 2006

Purpose: The purpose of this study was to investigate student nurses' knowledge and attitude related to the elderly. Method: The data were collected from 519 student nurses studying in university by means of a structured questionnaire. The data were analyzed using descriptive analysis, t-test, one-way ANOVA, and Pearson correlation analysis by SPSS version 10. Results: The average score of the respondents' knowledge of the elderly was 12.02(${\pm}2.77$) out of 25. The average score of the respondents' attitude toward the elderly was 80.09(${\pm}11.69$) out of 140. There was a statistically significant difference in the respondents knowledge of the elderly depending on their degree of preference for giving nursing care to the elderly (F=7.534, p=.001). There was a statistically significant difference in the respondents attitude toward the elderly depending on their degree of preference for giving nursing care to the elderly (F=23.167, p=.000), possession of living grandparents (F=6.174, p=.002), and degree of interaction with elderly (t=5.661, p=.000). Student nurses' knowledge and attitude related to the elderly were significantly correlated. Conclusion: It is necessary to develop a program for continuous teaching and education that will help increase student nurses' knowledge of the elderly and thereby positively change their attitude toward the elderly.

• 제어로봇시스템학회:학술대회논문집
• /
• 1998.10a
• /
• pp.135-140
• /
• 1998

The concept of dissipativity and passivity are of interest to us from a theoretical as well as a practical point of view. It is well known that the Riccati equation is derived from the dissipation inequality which expresses the fact that the system is dissipative; the energy stored inside the system doesn't exceed the amount of supply which flows into the system. The pencil model is regarded as a representation based on behavioral approach introduced by J.C. Willems. It has first order in the internal variable and zeroth order in the external variable. In general, any matrix pencil is transformed into a canonical form which is consist of several kind of sub-pencils, One of them has row full rank for $^\forall S\;\in\;\mathds{C}\;\bigcup{\infty}$, we call it under-determined mode of the model. In our opinion, most important properties of dynamical system lay in the mode. According to the properties of canonical form for pencil, it is shown that the storage function which characterizes the dissipativity of the system can be written as a LMI for the under-determined mode, if the system doesn't include impulse mode.

• Journal of the Korea Society of Computer and Information
• /
• v.20 no.10
• /
• pp.133-140
• /
• 2015

In this paper, I propose some policy and theoretical implications by analyzing moderating effects of volunteering activity in the causal relationships between social welfare major choice and their job choice. For the purpose of the goal of this study, I surveyed 242 university students in 2~4 grades majoring social welfare in Gwangju and South and North Jeolla Province. Analysis results showed that the personal motive on choosing a major affects the occupational aptitude & interests and economic feasibility of career when they choose their jobs. However, the social motive didn't affect the occupational aptitude & interests and economic feasibility of career. It means that they didn't choose their majors considering their aptitude & interests, but chose them by following the advice of the surrounding people. Also, moderating effects of volunteering activity was not significant, which means that volunteering period and schedules are too short and tend to be operated as a mere formality. This study suggests the policy implications so that they have the correct major selection and career options based on the analysis results.

• KSBB Journal
• /
• v.13 no.4
• /
• pp.343-351
• /
• 1998

About 75 strains which utilize cholesterol as sole carbon and energy source were isolated from 10 samples of Kimchi and 18 samples of fermented fish food (2 Ojingo-jeots, salt-fermented squid ; 5 Changran-jeots, salt-fermented pollack tripe ; 5 Myungran-jeots, salt-fermented Alaska pollack roe ; 3 Gajami-sikhae-jeots, fermented flat fish ; 2 Gul-jeots, salt-fermented oyster ; a Juneo-jeots, salt-fermented shad). Among them tested, the 3T6-5Mj strain isolated from Changran-jeot showed the highest activity on cholesterol degradation. The optimal composition of medium for the producing cholesterol degradation enzyme by 3T6-5Mj strain was 1.0 g/L NH4NO3, 1.0 g/L K2HPO4, 0.1 g/L MgSO4.7H2O, 1.0 g/L FeSO4.7H2O, 1 g/L NaCl, 5 g/L Trypton, 1 g/L Cholesterol, and 5 g/L Maltose at 30$^{\circ}C$, pH 7.5, and the enzyme production reached a maximum level at 140 hours of cultivation.

• International Journal of Industrial Entomology and Biomaterials
• /
• v.1 no.1
• /
• pp.29-33
• /
• 2000

We cloned and characterized a very late expression factor 1 gene, vlf-1, which regulates the level of very late gene transcripts, from Bombyx mori nuclear polyhedrosis virus (BmNPV) K1 strain. The 1,140 bp vlf-1 has an open reading frame of 379 amino acid and a MW of 44 kDa. The vlf-1 nucleotide sequence of BmNPV-Kl showed high homology with Autographa californica nuclear polyhedrosis virus and BmNPV T3 strain so far known, and its deduced amino acid residues were identical to those of BmNPV T3. The location of vlf-1 in the BmNPV-Kl genome was confirmed by Southern blot analysis and its expression patterns at the transcriptional level were confirmed by Northern hybridization analysis.

• Women's Health Nursing
• /
• v.24 no.4
• /
• pp.404-413
• /
• 2018

Purpose: To examine the applicability of a team-based learning using reflection journal in Women's Health Nursing for nursing students. Methods: This study had a nonequivalent control group non-synchronized design. Participants were 140 third-year undergraduate nursing students who agreed to participate in this study. The experimental group (n=70) received twice team-based learning using reflection journal about pregnancy nursing course while the control group (n=70) received only team-based learning. Data were analyzed with descriptive statistics, $x^2$ test, Fisher's exact test, and independent t-test using SPSS 23.0 program. Results: Compared to the control group, the experimental group reported significant positive changes in critical thinking (t=2.03, p=.044). Problem-solving, self-leadership, or academic self-efficacy of nursing college students was not significantly different between the two groups. Conclusion: Team-based learning using reflection journal is an effective teaching strategy to enhance critical thinking of nursing students.

• Journal of Apiculture
• /
• v.34 no.2
• /
• pp.137-140
• /
• 2019

Although honeybees (Apis mellifera) are crucial for maintenance of the ecosystem, population of honeybee has been steadily decreasing due to diseases including nosemosis. Nosemosis is a disease caused by Nosema ceranae and is now considered as a major threat to honeybees. N. ceranae is a microsporidian that stays in form of spore even before the infection, which makes it harder to control than other pathogens. People are now aware of this parasite, however, cure and preventive candidates for nosemosis are hardly found until today. In this study, in vitro experiment of Lespedeza cuneata treatment to prevent nosemosis were done using Trichoplusia ni cell line, BTI-TN5B1-4. Normal T. ni cells exhibited round shape without abnormal size. On the other hand, when N. ceranae were treated, cells deteriorated and some cells abnormally enlarged due to N. ceranae infection. Interestingly, treatment of T. ni cells with L. cuneate extract protected abnormal cell shape induced by N. ceranae infection to normal shape. Some N. ceranae spores were observed outside of the cells. Effective concentration range for N. ceranae control were experimented. Lowest concentration which can control nosemosis were 50 ㎍/mL. When the concentration of L. cuneata extract was exceeded 200 ㎍/mL, cytotoxicity started to show up.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2020.06a
• /
• pp.167-167
• /
• 2020

Annual sediment deposition in reservoirs behind weirs poses flood risk, while its accurate prediction remains a challenge. Sediment management by hydraulic flushing is an effective method to maintain reservoir storage. In this study, an integrated approach to predict sediment inflow and sediment flushing simulation in reservoirs is presented. The annual sediment inflow prediction was carried out with Artificial Neural Networks (ANN) modelling. RESCON model was applied for quantification of sediment flushing feasibility criteria. The integrated approach was applied on Sangju Weir and also on estuary of Nakdong River (NREB). The mean annual sediment inflow predicted at Sangju Weir and NREB was 400,000 ㎥ and 170,000 ㎥, respectively. The sediment characteristics gathered were used to setup RESCON model and sediment balance ratio (SBR) and long term capacity ratio (LTCR) were used as flushing efficiency indicators. For Sangju Weir, the flushing discharge, Q_f = 140 ㎥/s with a drawdown of 5 m, and flushing duration, T_f = 10 days was necessary for efficient flushing. At NREB site, the parameters for efficient flushing were Q_f = 80 ㎥/s, T_f = 5 days, N = 1, El_f = 2.24 m. The hydraulic flushing was concluded feasible for sediment management at both Sangju Weir and NREB.

• Earthquakes and Structures
• /
• v.24 no.2
• /
• pp.127-140
• /
• 2023

The vibration of microtubule in human cells is the source of electrical field around it and inside cell structure. The induction of electrical field is a direct result of the existence of dipoles on the surface of the microtubules. Measuring the electrical fields could be performed using nano-scale sensors and the data could be transformed to other computers using internet of things (IoT) technology. Processing these data is feasible by artificial intelligence-based methods. However, the first step in analyzing the vibrational behavior is to study the mechanics of microtubules. In this regard, the vibrational behavior of the microtubules is investigated in the present study. A shell model is utilized to represent the microtubules' structure. The displacement field is assumed to obey first order shear deformation theory and classical theory of elasticity for anisotropic homogenous materials is utilized. The governing equations obtained by Hamilton's principle are further solved using analytical method engaging Navier's solution procedure. The results of the analytical solution are used to train, validate and test of the deep neural network. The results of the present study are validated by comparing to other results in the literature. The results indicate that several geometrical and material factors affect the vibrational behavior of microtubules.