• International Journal of Advanced Culture Technology
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• v.6 no.2
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• pp.16-22
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• 2018

This study is a descriptive survey research to investigate the effect of the circadian rhythm of the college students in different departments on the addiction to SNS. The subjects of this study were 150 freshman students in the Department of Nursing in K university, a four-year university located in Gumi, Gyeongbuk, and 130 freshmen students in the Department of Mechanical Engineering in K Engineering university located in the same city. In this study, the difference of circadian rhythm and SNS addiction was analyzed among the subjects in different departments. The result showed that the circadian rhythm was not significantly different between the departments, but SNS addiction showed significant difference between the departments.

• Speech Sciences
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• v.9 no.1
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• pp.7-16
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• 2002

This study tested normal hearing adults' auditory perception of rhythm and intonation patterns, with low-frequency speech energy. The results showed that the narrow-band low-frequency zones of 125, 250, or 500 Hz provided the same important rhythm and intonation cues as did the wide-band condition. This suggested that an auditory training strategy that uses low-frequency filters would be effective for structuring or re-structuring the perception of rhythm and intonation patterns. These filters force the client to focus on these patterns, because the speech intelligibility is drastically reduced. This strategy can be used with both normal-hearing and hearing impaired children and adults with poor listening skills, and possibly poor speech intelligibility.

• Korean Journal of Clinical Pharmacy
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• v.11 no.2
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• pp.57-61
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• 2001

The effect of circadian rhythm on the pharmacokinetics of acebutolol was studied in rabbits administered intravenous 5 mg/kg dose of acebutolol at 09:00 in the morning (a.m) and 22:00 in the evening (p.m). A significant effect of circadian rhythm of pbarmacokinetic parameters as a function of time of day was noted in rabbits, showing lower total body clearance (CLt), higher plasma concentration and the area under the plasma concentration time curve (AUC) when acebutolol was given in the evening. The plasma concentration of acebutolol was increased significantly (p<0.05) at 12-24 hr after dosing in the evening. The AUC was greater in the evening $(111\%)$ than that in the morning and $CL_t$, was higher when acebutolol was given in the morning ($1.12\pm0.24$ ml/hr) versus in the evening ($1.01\pm0.22$ ml/hr), but those were not significant. Therefore, It is reasonable to consider individual circadian rhythm for effective dosage regimen of acebutolol in clinical chronotherapeutics.

• Science of Emotion and Sensibility
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• v.5 no.2
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• pp.51-61
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• 2002

This study deals with Rhythm which is one of aesthetic variables. Aesthetics among the factors of consumer preference has been importantly considered in competitive market environment. Therefore , consumers' purchasing standard has been also changed as their consciousness has been changed according to the variation of their lire style. Besides, the technique and method of design faces up to the change because of consumers' diverse wishes. Hence, to satisfy consumers' needs and the market front now on characterized as the short durability cycle of products, a distinctive design should be developed in the form of products that can be an important factor to attract consumers preference. So, in this study, 1 will try to understand typology based on a categorization theory and the conceptual structure of aesthetics, which are importantly considered at the same time. In addition, I will establish a new design process by extracting Rhythm affecting aesthetic. Ultimately, this study aims develop more consumer preferring design beyond the limit of a designer's idea and design generation by the result of this study.

• The Korean Journal of Zoology
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• v.32 no.4
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• pp.441-449
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• 1989

Azadirachtin은 Leucophaeq muderae (Fabricius연 하루 활동주기길이를 0.16 $\pm$ 0.03 h 단축시켰으며, 실험동물의 40 %에서 리듬의 Splitting현상이 관찰되었다. 하루에 두개의 활동주기를 보이는 Splitting현상은 서로 180$^{\circ}$를 유지하여 나타났고, 이는 동물의 실험 전의 본래 주기길이가 평균보다 더 긴 주기를 지닌 동물에게 주로 나타났다. 또한 활동주기의 Splitting현상을 보이는 동물의 안구와 뇌신경(optic lobe) 절단수술 후 Splitting이 사라짐으로써 Azadirachtin이 뇌신경에 자극을 주어 Splitting을 야기시켰으며, 한쌍의 optic lobe 중 어느 한쪽만으로도 동물의 활동주기 조절가능성이 있다는 것이 본 실험을 통하여 밝혀졌다. Azadirachtin shortens the period length of the locomotor activity rhythm in the circadian rhythm of Leucophoeo maderae and induces splitting of this rhythm in ho components in about 40% of the animals. The phase relationship between the ho components is 180$^{\circ}$Both shortening of period and splitting are more pronounced in animals processing longer periods before the injection of azadirachtin. Splitting disappears after the surgical transection of optic lobe.

• Journal of Korean Neuropsychiatric Association
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• v.57 no.4
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• pp.276-286
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• 2018

Circadian rhythm is a periodic and continuous change in physiological, behavioral, and mental characteristics that occurs in most organisms on the Earth, because the Earth rotates in a 24-hour cycle. The circadian system regulates daily rhythms of physiology and behavior, such as the sleep/wake cycle, body temperature, hormonal secretion, and mood. The influence of circadian rhythm is very powerful, but limited research has addressed its effects. However, many recent studies have shown that circadian dysregulation may play an important role in the pathogenesis of bipolar disorder. This review study examined current and noteworthy studies, including the authors' own works, and proposes a possible clinical application of bipolar disorder based on evidence that circadian rhythm dysregulation in bipolar disorder may be a key pathogenetic mechanism.

• Journal of the Korean Home Economics Association
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• v.41 no.10 s.188
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• pp.75-84
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• 2003

The purpose of this study was to examine the effect of listening to music during musical activities on children's development of tone recognition and sense of rhythm. The subjects were total sixty 4-years-olds from two classes of thirty. The children were divided into two groups, experimental and control. Before the experimental procedures, a pre-test was taken to evaluate the level of tone recognition and sense of rhythm of the children. Cordon's 'Audie' was employed and used to measure the difference of tone recognition and sense of rhythm. Then, the activity of listening to music was applied to the experimental group for ten weeks. For the experimental group, the musical activity was selected based on the themes of our tfe which was related to the weekly and yearly teaching plan. One the other hand, no musical activity was provided for the control group. After the experiment, a post-test was carried out using the same methodology of pre-test. Data were analysed by ANCOVA test. Results showed that there was a statistically significant difference in the development of tone recognition and sense of rhythm between the experimental group and the control group.

• Journal of Korean Academy of Nursing
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• v.39 no.3
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• pp.422-432
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• 2009

Purpose: In this study rest-activity rhythm, sleep pattern and quality of life of patients with restless legs syndrome were compared with those of a normal group. Methods: The participants in this study were 36 patients with restless legs syndrome diagnosed by a neurologist and 36 participants in the normal group. An actigraph, sleep diary, Pittsburgh Sleep Quality Index and Insomnia Severity Index scale were used as measurement tools for the study. Chi-square test, Lamda test, t-test and Kendall's correlation with SPSS 12.0 program were used to analyze the data. Results: Patients with restless legs syndrome had a higher rest-activity rhythm curve of Least 5 hr's activity(L5) and Most 10 hr's activity(M10) than those of normal group and sleep problems included decreased sleep efficiency and increased sleep latency, wake time and number of awakenings. The scores for the subscales of quality of life in patients with restless legs syndrome were lower than the normal group for general health, physical functioning, role limitations due to emotional problems, role limitation due to physical problems, social functioning, bodily pain, vitality and mental health. Conclusion: The results suggest that further studies are needed to identify rest-activity rhythm according to symptom severity and to develop nursing interventions which consider rest-activity rhythm.

• CELLMED
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• v.8 no.1
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• pp.3.1-3.3
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• 2018

The aim of this article is to argue that rhythm of janggu may have meaningful effects as a form of vitality for the elderly. Janggu is the most popular and soft pitched instrument in the percussion family in Korean music. It is warm and soft makes very deep and exquisite sounds. Janggu is a source of Korean national pride because of unique, manifestation of yin-yang five-elements represented in Korean music. The meaning and influence of rhythm in human is in essence and natural. This style paper is a course of happy life and a basic step toward in the world. Music therapy has been employed as a therapeutic intervention to facilitate healing across a many of clinical populations. A cheerful rhythm of janggu promotes the vitality of the elderly. This joining has contributed to the vitality, health improvement and the whole body for the elderly. Instead of visiting hospital, they sit in front of the janggu what could be better than a daily dose of exercise. Therefore, the author thinks this might help them forget their anxieties, this very moment, janggu music rhythm therapy lays the foundation of a more vital lifestyle.

• Phonetics and Speech Sciences
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• v.11 no.4
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• pp.71-79
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• 2019

This study aims to investigate the rhythmic patterns in the English speech produced by Chinese learners of English who learn English as a foreign language (EFL learners). Utilizing interval-based rhythm metrics, namely, VarcoC, VarcoV, nPVI-C, nPVI-V, and %V, the study compared the rhythmic differences in English speech between ten native speakers from the United States and forty Chinese EFL learners from mainland China. A sentence elicitation task consisting of thirty picture prompts and corresponding thirty stimuli sentences with at least five vocalic and four consonantal intervals was conducted. Statistical results reveal that both Chinese advanced learners and beginners had significantly lower degree of stress-timed in their English speech, indicating that the acquisition of the L2 speech rhythm was influenced by the learners' L1 rhythmic pattern. In addition, the results also show that the Chinese advanced learners had significantly higher degree of stress-timed in their English speech than beginners and showed no significant difference with native speakers in VarcoC and nPVI-C. These results indicate that the direction of L2 speech rhythm development was from more syllable-timed to more stress-timed.