• Korean Journal of Child Studies
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• v.29 no.6
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• pp.55-71
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• 2008

This study investigated parenting knowledge, interactions between mother and infant, and relationship between mother's parenting knowledge and mother-infant interaction by mothers' demographic variables. Subjects were 311 mothers. Instruments were the Knowledge of Child Development Inventory (Larsen & Juhasz, 1986) and the Assessment Profile for Early Childhood programs (Abbott-Shim & Sibely, 1987). Data were analyzed by t-test and ANOVA. Results showed (1) differences about parenting knowledge by mothers' employment status, age and education level, (2) differences in mother-infant interaction by mothers' age and education level, (3) parenting knowledge about physical development correlated positively with positive interaction, linguistic modeling, and sensitive response knowledge about linguistic and cognitive development had a large effect on positive mother-infant interaction and linguistic modeling.

• Annals of Clinical Neurophysiology
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• v.13 no.1
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• pp.13-20
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• 2011

Neuro-ophthalmological findings are common and occasionally prominent features in movement disorders. Accordingly, careful evaluation of the ocular motor functions may provide valuable information in early detection of the diseases and monitoring of the progression. Furthermore, accurate assessment of the abnormal ocular motor findings aids in understanding the pathophysiology and mechanisms of the movement disorders, and in their differential diagnosis. Ocular motility examination should include bedside evaluation and laboratory recording of the fixational abnormalities, saccades, smooth pursuit, the vestibulo-ocular reflex, optokinetic nystagmus, and vergence eye movements. In this review, we will discuss various ocular motor findings in ataxia and parkinsonian syndromes, and hyperkinetic movement disorders.

• Journal of The Korean Society of Clinical Toxicology
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• v.6 no.1
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• pp.1-8
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• 2008

Acetaminophen (AAP) overdose can result in potentially serious hepatotoxicity. The ingested dose and time from ingestion to presentation are important prognostic factors. Toxic dose in adult is thought to be at least 10 g or 200 mg/kg. However, early management of acute overdose should be guided by the plasma AAP concentration. The antidote for AAP poisoning is N-acetylcysteine (NAC). It provides complete protection against hepatotoxicity if given within 8 h of acute overdose. If the concentration is above the possible toxicity line as predicted by the Rumack-Matthew nomogram, either the 72-hr oral or the 20-hr intravenous NAC regimen should be administered. NAC is also effective if started late in patients with established hepatic failure. This article summarizes the current consensus of clinical assessment and management for acute AAP overdose.

• Journal of Advanced Marine Engineering and Technology
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• v.32 no.8
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• pp.1129-1140
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• 2008

Many turbulence models have been developed in order to analyze the flow characteristics in an engine cylinder. Watkins introduced k-${\varepsilon}$ turbulence model for in-cylinder flow, and Reynolds modified turbulence dissipation rate by applying rapid transformation theory, Wu suggested k-${\varepsilon}-{\tau}$ turbulence model in which length scale and time scale are separated to introduce turbulence time scale, and Orszag proposed k-${\varepsilon}$ RNG model. This study applied the models to in-cylinder flow induced by intake valve and piston moving. All models showed similar flow fields during early stage of intake stroke. At the end of compression stroke, ${\kappa}-{\varepsilon}$ Watkins, ${\kappa}-{\varepsilon}$ Reynolds and ${\kappa}-{\varepsilon}$ RNG predicted well second and third vortex, especially ${\kappa}-{\varepsilon}$ RNG produced new forth vortex near central axis at the lower part of cylinder which was not predicted by the other models.

• Journal of the Korean Institute of Intelligent Systems
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• v.13 no.4
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• pp.486-490
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• 2003

Software qualify models can predict the risk of faults in the software early enough for cost-effective prevention of problems. This paper introduces a least squares support vector machine (LS-SVM) as a fuzzy regression method for predicting fault ranges in the software under development. This LS-SVM deals with the fuzzy data with crisp inputs and fuzzy output. Predicting the exact number of bugs in software is often not necessary. This LS-SVM can predict the interval that the number of faults of the program at each session falls into with a certain possibility. A case study on software reliability problem is used to illustrate the usefulness of this LS -SVM.

• Korean Journal of Child Studies
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• v.30 no.6
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• pp.459-472
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• 2009

This study investigated educational effects of soil play activities by analyzing the influence of soil play activities on children's nature-friendly attitudes and emotions. Fifty 5-year-old children enrolled in K-kindergarten in Y-city were randomly selected for the study. Assessment of nature-friendly attitudes and emotions was by 11 questions selected from Musser & Diamond's (1999) Pro-environmental Attitude Test (adapted by Lee, Hye Sun, 2006) and from Bar On and Parker's (2000/2001) Emotion Test, an Emotional Quotient Scale for Young Children. Results showed that children who participated in the Soil Play Activities program acquired more nature-friendly attitudes and emotions than the control group. In conclusion, soil play activities can improve nature-friendly attitudes and emotions of 5-year- old children.

• Journal of the Korean Home Economics Association
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• v.35 no.6
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• pp.235-248
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• 1997

This study was aimed to validate the Infant/Toddler Environment Rating scale (ITERS). The rating scale was translated and adjusted appropriately by two researchers majoring child studies. An item-by-item comparison of the ITERS with criteria of NAEYC was conducted as the measure of content validity. 88% of the items of the ITERS was covered on the NAEYC criteria. Criterion validity was assessed by comparing ITERS scores and the Assessment Profile for early childhood Programs scores. The total correlation of two scores was .87. The sample for the inetrater reliability and internal consistency studies included 30 infant/toddler classes in 30 day care center in Inchon city. Two observers independently rated each class on the ITERS during a single visit. The Spearman's correlation coefficient for interater reliability on the overall scale was .74. For the measure of internal consistency, the Cronbach's Alpha score on the overall scale was .93. The rating results show that national/public child care centers have better quality in Adult Needs and Learning Activities subscales than private child care centers have.

• Toxicological Research
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• v.11 no.1
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• pp.103-108
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• 1995

Rat renal proximal tubule suspension was prepared from adult male Sprague Dawley rat (250-300g) by mechanical (non-enzymatical) method and evaluated as a pontential model for mechanistic studies and early screening of nephrotoxicity, using anionic antibiotics (cephaloridine). Cephaloridine (CPL) produced an increase in LDH release into media. This release results from decrease a proximal tubule cell viability and subsequently increase the permeability of cell viability and subsequently increase the permeability of cell membrane. Since loss of intracellular potassium and ATP into media is the sign of disruption of cell membrane, especially basolateral membrane (BLM), CPL induced proximal tubule cell compromise also appear be associated with BLM, maybe $Na^+-K^+$ ATPase. Also seen was significant depression in brush border membrane (BBM) ALP activity and no significantly increase in BBM GGT activities. The inhibition of typical anion, PAH accumulation (especially, CPL 5 mM) and cation, TEA (especially, 4hours incubation) were seen dose dependently. This is because of CPL accumulation in renal proximal tubule and increase of cytotoxicity.

• Proceedings of the KSRS Conference
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• 1999.11a
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• pp.37-42
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• 1999

A compact imaging system, the Multi-spectral Earth Imaging System (MEIS) was developed and operated on an engineering test satellite, KITSAT-3 at the orbital altitude of 720 km. The MEIS takes multi-spectral images of the earth's surface with the swath width of 48 km and the ground sampling distance of 13.8 m in three spectral bands. A brief technical description of the KITSAT-3 MEIS and the result from its initial operation since early June, 1999 are presented. The quality of images produced by the KITSAT-3 MEIS was found comparable to that of images from existing commercial earth observation satellites from its preliminary assessment.

• Proceedings of the KIEE Conference
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• 1991.07a
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• pp.393-396
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• 1991

The load factor is continuously decreasing with the increase of the daytime power demand so that the load levelling is required. Since the pumped storage power plant for the load levelling has some problems, new storage techniques such as the battery energy storage system (BESS) had been developed in the early 1980s. The MW BESS had been already interconnected to power system in the developed countries, while the 20KW BESS was developed and is being operated by KERI and KEPCO in our country, the development project of MW BESS is being persued now. Then, it is important to evaluate the economics and prospect of BESS. This paper presents the economic target and introduction prospect of BESS in korea.