• Journal of the Korean Home Economics Association
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• v.44 no.11
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• pp.23-34
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• 2006

The purpose of this study was to examine: (1) how mothers generally react to children's negative emotions; (2) whether there were relationships between children's temperament and mothers' reactions to children's negative emotions; (3) whether there were relationships between mothers' depression and parenting stress, and their reactions to children's negative emotions; (4) whether there were relationships between mothers' reactions to children's negative emotions and children's behavior problems; and (5) whether there were relationships between mothers' reactions to children's negative emotions and children's social competence. The subjects were 246 preschoolers and their mothers. It was found that emotion-focused socialization and problem-focused socialization were the most frequently used reactions by mothers to cope with children's negative emotions. Relationships between children's temperament and mothers' reactions to children's negative emotions, those between mothers' depression and parenting stress and their reactions to children's negative emotions, those between mothers' reactions to children's negative emotions and children's behavior problems, and those between mothers' reactions to children's negative emotions and children's social competency were all partially significant. Sex differences were found in some of the relationships found significant.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.20 no.5
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• pp.502-509
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• 2010

A test facility which can simultaneously measure turbocharger operating condition variables and vibro-acoustic emission in the situations that are quite similar to real internal combustion engine operating conditions has been introduced. Using this facility, a new method sweeping from full open throttle to deep surge region along constant speed curves can be utilized instead of the stationary method that has been traditionally used to obtain turbocharger compressor maps. Data covering an extensive range of the compressor performance map have been collected and analyzed. An experimental study is performed to define a noise diagram that correlates vibro-acoustic measurements to aerothermodynamic operating conditions. An instrumentation set in the facility allows the automatic definition of the operating point on the turbine and compressor map of the turbocharger. Also, radiated sound pressure and casing vibration data corresponding to the point are obtained by a microphone in the vicinity of the compressor casing and an accelerometer on the casing. The major source(s) of noise at specific operating point on the map can be easily identified with these maps. Also, acoustic characteristics of a given turbocharger at the vicinity of the surge as well as in the surge are also defined. Finally, the possibility to define mild surge region of a turbocharger using vibro-acoustic measurements is studied.

• Korean Journal of Adult Nursing
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• v.22 no.6
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• pp.676-686
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• 2010

Purpose: This study has aimed to examine the relationship among self-esteem, Activities of Daily Living (ADL) and depression reported by hospitalized elderly patients with chronic diseases. Methods: A descriptive correlation study by means of a self-report questionnaire or face-to-face interview was used to collect data from 119 elderly patients who were hospitalized in a General Hospital from January 5 to February 25, 2010. Their levels of depression was measured using Short-Form Geriatric Depression Scale, self esteem using Jeon's, and activities of daily living using K-ADL. Results: 80.7% of the subjects experienced depression. Depression correlates with self-esteem (r=-.67) and ADL (r=.45). The influencing factors on depression were self-esteem, ADL, subjective health status, and family support satisfaction ($R^2=.57$), while self esteem in itself explained 45% of variance in depression. Conclusion: These findings indicate the importance of early detection of depression, which starts from the admission of patients and the continuing evaluation/management in daily life after discharge to ensure their well-being and quality of life. The development of program empowering self esteem, ADL and subjective health status with adequate family support during hospitalization and in daily life is indispensible.

• Journal of the Korean Ceramic Society
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• v.49 no.4
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• pp.301-307
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• 2012

SiAlON glasses are silicates or alumino-silicates, containing Mg, Ca, Y or rare earth (RE) ions as modifiers, in which nitrogen atoms substitute for oxygen atoms in the glass network. These glasses are found as intergranular films and at triple point junctions in silicon nitride ceramics and these grain boundary phases affect their fracture behaviour. This paper provides an overview of the preparation of M-SiAlON glasses and outlines the effects of composition on properties. As nitrogen substitutes for oxygen in SiAlON glasses, increases are observed in glass transition temperatures, viscosities, elastic moduli and microhardness. These property changes are compared with known effects of grain boundary glass chemistry in silicon nitride ceramics. Oxide sintering additives provide conditions for liquid phase sintering, reacting with surface silica on the $Si_3N_4$ particles and some of the nitride to form SiAlON liquid phases which on cooling remain as intergranular glasses. Thermal expansion mismatch between the grain boundary glass and the silicon nitride causes residual stresses in the material which can be determined from bulk SiAlON glass properties. The tensile residual stresses in the glass phase increase with increasing Y:Al ratio and this correlates with increasing fracture toughness as a result of easier debonding at the glass/${\beta}-Si_3N_4$ interface.

• Journal of Astronomy and Space Sciences
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• v.28 no.4
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• pp.261-265
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• 2011

We investigate the sunspot area data spanning from solar cycles 1 (March 1755) to 23 (December 2010) in time domain. For this purpose, we employ the Hilbert transform analysis method, which is used in the field of information theory. One of the most important advantages of this method is that it enables the simultaneous study of associations between the amplitude and the phase in various timescales. In this pilot study, we adopt the alternating sunspot area as a function of time, known as Bracewell transformation. We first calculate the instantaneous amplitude and the instantaneous phase. As a result, we confirm a ~22-year periodic behavior in the instantaneous amplitude. We also find that a behavior of the instantaneous amplitude with longer periodicities than the ~22-year periodicity can also be seen, though it is not as straightforward as the obvious ~22-year periodic behavior revealed by the method currently proposed. In addition to these, we note that the phase difference apparently correlates with the instantaneous amplitude. On the other hand, however, we cannot see any obvious association of the instantaneous frequency and the instantaneous amplitude. We conclude by briefly discussing the current status of development of an algorithm for the solar activity forecast based on the method presented, as this work is a part of that larger project.

• Journal of Families and Better Life
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• v.29 no.5
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• pp.107-119
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• 2011

The main purpose of this study was to examine the relationships among Mother's Conversation Patterns, Maternal Emotional Support, and Children's self-esteem and motivation to achieve. The subjects of the study were 262 children's in the 5th and 6th grades at an elementary school in Seoul and Gyeonggi. The major results of this study are as follows: The achievement motivation of female children was higher than that of male children. Second, the mother's conversation patterns, maternal emotional support and children's self-esteem were related to the children's achievement motivation. Third, according to the results of an examination of the relative influence of the variables, the child's self-esteem and mother's open communication had an effect on the child's achievement motivation. This high level of self-esteem and motivation to act positively led to high achievement motivation.

• Journal of Fashion Business
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• v.16 no.5
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• pp.1-22
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• 2012

This study aims to examine the effect of talent types and self-appearance perception on make-up and hair appearance management behaviour in 367 adults(female and male). The present study is the first to consider both human talent type and the self-appearance perception on make-up and hair appearance management behaviour correlates to appearance management behaviour. Correlation analysis showed that there were statistically significant correlation between the talent types, the self-appearance perception and the make-up and hair appearance management behaviour, appearance managing reason, appearance managing area, and consulting with doctor related to appearance unsatisfaction. Also, regression analysis revealed that the effects of interpersonal talent, bodily kinesthetic talent among 8 talent types on the make-up and hair appearance management behaviour were significant, and that the effects of real and ideal self-appearance perception factors on the make-up and hair appearance management behaviour were significant.

• Phonetics and Speech Sciences
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• v.10 no.1
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• pp.9-14
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• 2018

This study compared the relative contributions of intensity, F0, duration and vowel spectra of L2 English lexical stress by Japanese and Korean learners of English. Recordings of Japanese, Korean and native English speakers reading eighteen 2 to 4 syllable words in a carrier sentence were analyzed using multiple regression to investigate the influence of each acoustic correlate in determining whether a vowel was stressed. The relative contribution of each correlate was calculated by converting the coefficients to percentages. The Japanese learner group showed phonological transfer of L1 phonology to L2 lexical prosody and relied mostly on F0 and duration in manifesting L2 English stress. This is consistent with the results of the previous studies. However, advanced Japanese speakers in the group showed less reliance on F0, and more use of intensity, which is another parameter used in native English stress accents. On the other hand, there was little influence of F0 on L2 English stress by the Korean learners, probably due to the transfer of the Korean intonation pattern to L2 English prosody. Hence, this study shows that L1 transfer happens at the prosodic level for Japanese learners of English and at the intonational level for Korean learners.

• Molecules and Cells
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• v.38 no.6
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• pp.540-547
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• 2015

Attention deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders, affecting approximately 5% of children. However, the neural mechanisms underlying its development and treatment are yet to be elucidated. In this study, we report that an ADHD mouse model, which harbors a deletion in the Git1 locus, exhibits severe astrocytosis in the globus pallidus (GP) and thalamic reticular nucleus (TRN), which send modulatory GABAergic inputs to the thalamus. A moderate level of astrocytosis was displayed in other regions of the basal ganglia pathway, including the ventrobasal thalamus and cortex, but not in other brain regions, such as the caudate putamen, basolateral amygdala, and hippocampal CA1. This basal ganglia circuit-selective astrocytosis was detected in both in adult (2-3 months old) and juvenile (4 weeks old) $Git1^{\check{s}/\check{s}}$ mice, suggesting a developmental origin. Astrocytes play an active role in the developing synaptic circuit; therefore, we performed an immunohistochemical analysis of synaptic markers. We detected increased and decreased levels of GABA and parvalbumin (PV), respectively, in the GP. This suggests that astrocytosis may alter synaptic transmission in the basal ganglia. Intriguingly, increased GABA expression colocalized with the astrocyte marker, GFAP, indicative of an astrocytic origin. Collectively, these results suggest that defects in basal ganglia circuitry, leading to impaired inhibitory modulation of the thalamus, are neural correlates for the ADHD-associated behavioral manifestations in $Git1^{\check{s}/\check{s}}$ mice.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.5
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• pp.2535-2537
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• 2016

Background: Most of the cervical cancer patients, including those with cervical adenocarcinomas, come at advanced stage in the developing world so its mortality is high. Radiotherapy is one of the treatment modality for advanced stage cervical adenocarcinomas, but its efficacy depends on several prognostic factors such as the stage, histopathology, presence of organ dysfunction and expression of cellular biology markers mainly involve in cell proliferation such as the epidermal growth factor receptor (EGFR). Some research indicates that activation of EGFR in malignancy (including cervical cancer) correlates with aggressive behavior, a poor prognosis and decreasing sensitivity of radiotherapy. However, the combination between targeted therapies and radiotherapy are innovative approaches which may provide a good result. This study aimed to assess any correlation between expression of EGFR and response to radiotherapy in cervical adenocarcinoma cases. Materials and Methods: A total of 32 women were registered in a retrospective study period January 2007 and May 2014. Paraffin blocks from these patients were processed by classical histological techniques and for immunohistochemical staining of EGFR, scoring being accomplished according to the immunoreactive scoring (IRS) of Remmele and Stegner. Results: Among the studied molecular factors, there was significant correlation expression of EGFR with poor response to radiotherapy (p=0.0001). Conclusions: The result of this study showed a significant correlation between expression of EGFR and sensitivity of radiation in cervical adenocarcinoma cases. Further research is necessary to obtain information about new therapeutic management.