• Title/Summary/Keyword: difficulty levels

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The effects of acupuncture Kyongo(L8)·Puryu(K7), Kyongo(L8)·Um-gok(K10) on Blood Pressure in Hypertensive RAT induced by 2K1C (경거(經渠)·복류(復溜), 경거(經渠)·음곡(陰谷) 침자(鍼刺)가 2K1C 고혈압(高血壓) 백서(白鼠)의 혈압(血壓)에 미치는 영향(影響)에 대한 비교 고찰)

  • Lyim, Hyun-jin;Ryu, Chung-ryul;Cho, Myeng-rae
    • Journal of Acupuncture Research
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    • v.20 no.6
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    • pp.1-12
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    • 2003
  • Objective : The aim of this experiments was to investigate the effects of Kyongo Puryu(originated from ${\ll}$Classic on Difficulty${\gg}$), Kyongo Um-gok(originated from ${\ll}$Ling Shu${\gg}$) acupuncture on the Blood Pressure, Cardiomegalic index, and plasma levels of atrial natriuretic peptide in Hypertensive RAT induced by 2K1C. Methods : The effects of Kyongo(L8) Puryu(K7), Kyongo(L8) Um-gok(K10) acupuncture on Blood Pressure in Hypertensive RAT induced by Two Kidney One Clip(2K1C). Results : I. Blood Pressure was decreased significantly after acupuncture of L8 K7. II. Cardiomegalic index decreased significantly after acupuncture of L8 Puryu, L8 K10. IlI. Plasma levels of atrial natriuretic peptide was increased significantly after acupuncture of L8 K7.

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Modifying a Back Endurance Test for Examining Erector Spine Muscles by Adding Lateral Trunk Bending and Trunk Rotation

  • Park, Se-Yeon;Park, Du-Jin
    • PNF and Movement
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    • v.15 no.3
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    • pp.381-387
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    • 2017
  • Purpose: Although some studies indicate that the Sorensen test may not be used to examine back muscles such as the erector spinae, alternatives to the back-extension test are rarely suggested. Therefore, the purpose of the present study was to investigate an effective way to stimulate the erector spinae muscles by adding a component of trunk rotation and lateral bending to general back extensions. Methods: A total of 18 healthy, physically active participants performed simple trunk extension, extension with trunk rotation, and extension with lateral bending. Surface electromyography responses of the latissimus dorsi, thoracic, and lumbar levels of the erector spinae; the gluteus maximus; and the biceps femoris muscles were investigated during these 3 conditions of modified back extension tests. Results: The simple trunk extension exercise caused significant increases in activity of the gluteus maximus and biceps femoris muscles as compared to the extension with rotation and lateral bending exercises. The extension with trunk rotation exercise showed significantly greater activation in the thoracic and lumbar levels of the erector spinae and in the latissimus dorsi as compared to the other exercises. The index measuring subjective difficulty was significantly lower in the simple trunk extension exercise as compared to the extension with trunk rotation and extension with lateral bending exercises. Conclusion: The present study suggests that extension with trunk rotation has the advantage of stimulating the para-spinal muscles, while simple trunk extension may not be adequate to selectively simulate the para-spinal muscles but may be appropriate for examining global trunk extensors.

A Design-Decision Support Framework for Evaluation of Design Options in Passenger Ship Engine Room

  • Kim, Soo-Woong;Lee, Hyun-Jin;Kwon, Young-Sub
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2006.11a
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    • pp.277-280
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    • 2006
  • Most real world design evaluation and risk-based decision support combine quantitative and qualitative (linguistic) variables. Decision-making based on conventional mathematics that combines qualitative and quantitative concepts always exhibit difficulty in modelling actual problems. The successful selection process for choosing a design/procurement proposal is based on a high degree of technical integrity, safety levels and low costs in construction, corrective measures, maintenance, operation, inspection and preventive measures. However, the objectives of maximising the degree of technical performance, maximising the safety levels and minimising the costs incurred are usually in conflict, and the evaluation of the technical performance, safety and costs is always associated with uncertainties, especially for a novel system at the initial concept design stage. In this paper, a design-decision support framework using a composite structure methodology grounded in approximate reasoning approach and evidential reasoning method is suggested for design evaluation of machinery space of a ship engine room at the initial stages. It is a Multiple Attribute Decision-Making (MADM) or Multiple Criteria Decision Making (MCDM) framework, which provides a juxtaposition of cost, safety and technical performance of a system during evaluation to assist decision makers in selecting the winning design/procurement proposal that best satisfies the requirement in hand. An illustrative example is used to demonstrate the application of the proposed framework.

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Correlations among the Continence Function, Cognitive Function and Activities of Daily Living in Elderly Male Patients with Dementia in a Geriatric Hospital

  • Kim, Hong Rae;Shin, Hee Joon;Wang, Joong San
    • Journal of International Academy of Physical Therapy Research
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    • v.7 no.1
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    • pp.972-978
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    • 2016
  • The purpose of this study was to identify correlations among the continence function, cognitive function, and activities of daily living(ADL) in elderly male patients with dementia in geriatric hospitals. The subjects were 64 patients aged 65 or above who were diagnosed with dementia among the hospitalized male patients in a geriatric hospital. For the subjects' cognitive function, a questionnaire developed for the Korean Mini Mental Status Examination(K-MMSE) was used. For the continence function and ADL, data were collected using a patient evaluation table. As a result, a lower level of cognitive function resulted in corresponding higher levels of dependence in all items of ADL except bathing(p<.05), and a lower level of cognitive function led to corresponding declines in the continence function(bowel control, bladder control)(p<.01). In addition, a higher level of dependence in ADL resulted in corresponding higher levels of difficulty in bowel and bladder control(p<.01). This study showed correlations among the cognitive function, ADL, and continence function of elderly men with dementia. The results of this study may be used as basic data for the management and treatment of hospitalized elderly male patients with dementia in geriatric hospitals.

Monounsaturated Fatty Acids와 혈중 Cholesterol

  • 지석우;지규만
    • Proceedings of the Korea Society of Poultry Science Conference
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    • 2000.11a
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    • pp.14-35
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    • 2000
  • There have been growing interests in olive oil, which is attributed to the beneficial health effects of the Mediterranean diet. Numerous studies suggest that oleic acid, the major fatty acid in olive oil, may contribute to less incidence of coronary heart disease(CHD) in the Mediterranean area. Although the major effects of high monounsaturated fatty acid(MUFA) consumption on lowered plasma cholesterol are generally attributed to the consequential replacement of saturated fatty acid in diets, some studies have shown a modest cholesterol lowering effect of MUFA alone when it replaces dietary carbohydrate at an equal amount of energy. Furthermore, MUFA increases the level of the protective high-density lipoprotein cholesterol more than polyunsaturated fatty acid(PUFA) does when these two classes of fatty acids replace carbohydrates in the diet. It has been generally recommended that optimal dietary fat should be rich in MUFA, such as oleic acid, low in saturated fatty acids and provide adequate amounts of PUFA. However, no conclusive observations have been made yet mainly due to a difficulty in controlling the proportion of oleic acid without adjusting the levels of the other fatty acids to be constant, which could also affect plasma cholesterol levels. Recent findings also suggest that dietary PUFA results in higher tendency toward lipid peroxidation whereas with MUFA the susceptibility of low density lipoprotein to oxidative stress is reduced. More studies are needed to clarify the effects of MUFA on reducing the incidence of CHD.

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Analysis of Argumentation Structure in Students' Writing on Socio-scientific issues (SSI): Focusing on the Unit of Climate Change in High School Earth Science I

  • Yoo, Bhyung-ho;Kwak, Youngsun;Park, Won-Mi
    • Journal of the Korean earth science society
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    • v.41 no.4
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    • pp.405-414
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    • 2020
  • In this study, we analyzed the development of high school students' argumentation through their writings on socio-scientific Issues (SSI) related to the Climate Change Unit in the Earth Science I curriculum. Pre- and post-writing assignments on the two main causes of global warming were analyzed and compared. In addition, an in-depth interview of the focus group was conducted with 7 students who showed a distinct change in the level of argumentation. According to the results, 16 of 52 students remained at the same argumentation level in pre- and post-writing assignments, and students remaining at Level 2 among five levels had difficulty in understanding the Toulmin's argument pattern (TAP) structure. Using the TAP structure, 29 of 52 students demonstrated increased argumentation levels in the post-writing assignments. The conclusions include that writing lessons on SSI using the TAP in Earth science classes can improve the level of high school students' argumentative writing, and that the level of students' argumentation can develop with the elaboration of their level of falsification. Also, it is suggested that the science curriculum should increase students' science writing competencies by specifying science writing as one of the goals.

The relationship between vowel production and proficiency levels in L2 English produced by Korean EFL learners

  • Lee, Seohee;Rhee, Seok-Chae
    • Phonetics and Speech Sciences
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    • v.11 no.2
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    • pp.1-13
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    • 2019
  • This study explored the relationship between accurate vowel production and proficiency levels in L2 English produced by Korean EFL adult learners. To this end, nine English vowels /i, ɪ, ɛ, æ, ʌ, ɔ, ɑ, ʊ, u/ were selected and adjacent vowels paired up (e.g., /i/-/ɪ/, /u/-/ʊ/, /ɛ/-/æ/, /ʌ/-/ɔ/, /ɔ/-/ɑ/). The spectral features of the pairs were measured instrumentally, namely F1 (indicating tongue height) and F2 (indicating tongue backness). Meanwhile, the durations as well as spectral features of the tense and lax counterparts in /i/-/ɪ/ and /u/-/ʊ/ were measured, as both temporal and spectral features are important in distinguishing them. The findings of this study confirm that higher-rated speakers were better able to distinguish the contrasts in the front vowel pairs /i/-/ɪ/ and /ɛ/-/æ/ than lower-rated learners, but in the central and back vowel pairs /u/-/ʊ/and /ʌ/-/ɔ/ (though not /ɔ/-/ɑ/), Korean EFL learners generally showed difficulty distinguishing adjacent vowels with spectral cues. On the other hand, the durations of the tense and lax vowels showed that the lower-rated speakers were less able to use the temporal feature to differentiate tense vowels from their lax counterparts, unlike previous studies that found that in general Korean learners depend excessively on the temporal cue to distinguish tense and lax vowels.

The Development and Use of Science Modules for Facilitating Students' Understanding of Science-Technology-Society: Students' Perception and Interest of News Article-Based Lessons (과학-기술-사회 관련성에 대한 이해 촉진을 위한 초등 과학 모듈의 개발 및 적용: 신문기사 활용수업에 대한 학생들의 인식과 흥미 조사)

  • Seo, Ji-Hye;Lee, Yong-Bok;Jang, Shin-Ho
    • Journal of Korean Elementary Science Education
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    • v.27 no.1
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    • pp.83-92
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    • 2008
  • In this study, we developed elementary science education modules for facilitating students' understanding of the connected nature of Science-Technology-Society. For these modules, we particularly used news articles to make connections among science, technology, and society. We set up the development criteria as followings: connecting science-technology-society, aligning with national science curriculum, respecting students' interest, and appropriating the difficulty levels in terms and concepts. We also studied 4th grade students' perception of using these modules in science lessons. Most students perceived that using the modules in their science classes helped them link science-technology-society intimately and enhance their interest and motivation, as well as their self-esteem for studying science.

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Intravenous Target Controlled Infusion Sedation for Patients with Amyotrophic Lateral Sclerosis: Case Report (근위축성 측삭경화증 환자(ALS)의 치과 진료 시 목표농도 주입법을 이용한 정주 진정 마취: 증례 보고)

  • Doh, Re-Mee;Kim, Seung-Oh
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.12 no.3
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    • pp.177-181
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    • 2012
  • Amyotrophic lateral sclerosis (ALS) is one of the major neurodegenerative diseases that involves degeneration at all levels of the motor system- from the cortex to the anterior horn of the spinal cord. Patients with ALS often have difficulty of ambulation for dental treatment though they have poor oral hygiene state. General anesthesia may cause respiratory problem due to its high sensitivity to muscle relaxant and weakened upper airway. In this case report, 38-year-old female patient with ALS required many dental treatments. Conscious sedation with intravenous target controlled infusion method was successfully employed and patient was discharged without any complications.

Questionnaire Surveys on Teaching Skills and the Degree in Which Students Understand the Uppermost Points of Importance in Their Classes

  • Koike, Katsuaki;Mori, Kazuya;Yamao, Toshitaka;Fujimi, Toshio;Kim, Yun-Hae
    • Journal of Engineering Education Research
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    • v.13 no.5
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    • pp.61-65
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    • 2010
  • As an activity of one working group for the Good Practice program at Kumamoto University, we proposed a questionnaire survey on the degree in which students understand the uppermost points of importance in their classes in addition to the usual type of class questionnaire. Each class lists three uppermost points of importance which are essential for understanding the class content. The degree of understanding is classified into four levels: full, most, insufficient, and not at all understandings. Through the analysis of questionnaire replies, the degree of understanding for bachelor students in the Department of Engineering was discovered to be meaningfully affected by the degree of difficulty, the effectiveness of audiovisual aids, self-study time, and class attendance.

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