• Communications for Statistical Applications and Methods
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• 제25권5호
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• pp.545-557
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• 2018

The inclusion of covariates in the model often affects not only the estimates of meaningful variables of interest but also its statistical significance. Such gap between statistical and subject-matter significance is a critical issue in huge sample studies. A popular huge sample study, the sample cohort data from Korean National Health Insurance Service, showed such gap of significance in the inference for the effect of obesity on cause of mortality, requiring careful consideration. In this regard, this paper proposes a sample size calibration method based on a Monte Carlo t (or z)-test approach without Monte Carlo simulation, and also proposes a test procedure for subject-matter significance using this calibration method in order to complement the deflated p-value in the huge sample size. Our calibration method shows no subject-matter significance of the obesity paradox regardless of race, sex, and age groups, unlike traditional statistical suggestions based on p-values.

• 한국치위생학회지
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• 제19권6호
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• pp.1047-1058
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• 2019

Objectives: The aim of this study is to investigate extracurricular program needs according to the learning styles of dental hygiene students, and to develop and organize non-subject programs that strengthen student competencies. Methods: The subjects in this study were dental hygiene students from three colleges located in Chungbuk, Chungnam, and Ulsan, respectively. The survey tools were composed of learning style, a non-subject field, and non-subject teaching and learning methods. Lastly, 313 data points were analyzed. Results: Learning styles of subjects were as follows: assimilators, divergers, convergers, and accommodators, at 44.6%, 33.0%, 16.0%, and 6.4%, respectively. Preference of the non-subject field, according to learning style, showed that accommodators were higher than divergers on startup, and the difference was found to be statistically significant (p<0.05). Preference of non-subject teaching and learning methods, according to learning style, shows that both divergers and convergers prefer special lectures, while assimilators prefer tours, and convergers prefer experience/exercise. The results had achieved statistical significance (p<0.05). Conclusions: This study shows that dental hygiene students had different learning styles, and their learning methods varied depending on learning style. Therefore, a method should be identified to develop and run non-subject programs suitable for each learning style.

• 한국운동역학회지
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• 제22권2호
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• pp.173-181
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• 2012

The purpose of this study was to research on the movement of Fouette A La Second which was a type of turning movements on cheerleading. This research was conducted for helping cheerleaders to improve their overall skills. The three cheerleading national team members were participated in this research and the movements of Fouette A La Second were recorded with 6 digital motion master 60 video cameras, operating at a sampling frequency of 60 fields/sec. Six out of ten turning motion data were collected and analyzed with Kwon3D XP. The results were as follow: 1) The subject A's Releve motion was not executed precisely because of the COG's unstability. So she was required to improve the balancing ability. 2) The subject B could not execute the precise A La Second motion because of subject B's large hip angle. By tracing the projection of B's right toe on x-y plane, the subject made an elliptical orbit. Because B did not have a proper turning skills she needed to improve the muscle power and flexibility. She also needed to move quickly from Releve to Plie movement. 3) The subject C could not execute the Plie movement precisely, so she could not turn her body correctly around a certain spot. The subject C needed to decrease the knee angle at the Plie motion.

• 인지과학
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• 제25권4호
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• pp.417-433
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• 2014

이 연구는 한국인 프랑스어 학습자들이 프랑스어 담화 내의 대명사를 해석할 때 담화 구조의 영향을 받는지 알아보았다. 한국인 프랑스어 학습자, 프랑스어 원어민 참가자들은 세 문장으로 구성된 46개의 짧은 이야기를 읽고 이야기의 연결이 얼마나 자연스러운지 7점 척도로 평가했다. 이야기들은 마지막 문장의 주어가 이전 문장의 주어와 동일한지 여부와 마지막 문장의 주어가 반복된 명사구 또는 대명사로 지시되었는지에 따라 4가지 경우로 나누어졌다. 프랑스어 원어민 참가자들은 선행연구에서와 같이 마지막 주어가 이전 문장의 주어와 동일할 때, 주어가 변환될 경우에는 대명사보다 반복 명사구로 언급될 때 이야기가 더 자연스럽다고 판단하였다. 반면 한국인 참가자들은 주어 연속 여부에 무관하게 대명사 주어 문장을 반복 명사구 주어 문장보다 부자연스럽다고 판단하였다. 이와 같은 한국인 프랑스어 학습자의 대명사 해석 방식은 영 프랑스어권 아동의 모어 학습과정에서 대명사 해석의 기제 습득과정과 비교하여 논의되었다.

• 대한물리의학회지
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• 제8권2호
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• pp.271-280
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• 2013

PURPOSE: This study was conducted in chronic hemiplegic patients to examine the effect of the training of the ipsilateral arm that is identical to the model performing movements and the training of the contralateral arm on the function of the arm. METHODS: The subjects were participated total 2 patients(the subject 1 with left hemiplegia and the subject 2 with right hemiplegia). The study was conducted for 4 weeks. The action observation training were repeated 10 times in 10 days during intervention period. The evaluation of the arm function such as BBT, MFT and MAL in the each subject were examined 5 times in the baseline period, 10 times during the intervention period and 5 times during the baseline regression period. RESULTS: The results of the evaluation in each subject were presented as mean values and video graphs. The arm function of the 2 subjects were improved during the intervention period in comparison with the baseline period, and the improvement was maintained even during the regression baseline period. In addition, there were large variation ratio of BBT and MAL (AOU, QOM) in comparison with subject 1. CONCLUSION: According to the results, the action observation training was more effective in improving upper limb function of stroke patients who imitate the performed behavior of paralyed parts on the same side.

• Journal of Interdisciplinary Genomics
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• 제3권1호
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• pp.21-24
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• 2021

Purpose: Activating mutations of the calcium-sensing receptor (CASR) are a rare genetic disorder, and result in autosomal dominant hypocalcemia with hypercalciuria (ADHH). ADHH exhibited varying degrees of hypocalcemia. In this study, we report the clinical and molecular characteristics of activating variants in CASR patients diagnosed in Korea. Methods: This study included three patients with activating variants of CASR confirmed by biochemical and molecular analysis of CASR. Clinical and biochemical findings were reviewed chart retrospectively. Mutation analysis of CASR was performed by Sanger sequencing. Results: Subject 1 showed severe symptoms from the neonatal period and had difficulty in controlling the medications that were administered. Subject 2 was identified as having a novel variant of CASR with hypocalcemia and a low parathyroid hormone that were found in the neonatal period. During a course without medication, hypocalcemia occurred suddenly around 2 years of age. Subject 3 was diagnosed with hypoparathyroidism with hypocalcemic seizures starting from the neonatal period. About 4 years without taking medication with any symptom. However, at 10 years old revisited by repetitive hypocalcemic seizure events. Subject 1 and 3, were heterozygous for c.2474A>T (p.Y825F), c.2395G>A (p.E799K) located in the transmembrane domain (TMD) of CASR. Subject 2 was heterozygous for c.403A>C (S430L) located in the extracellular domain (ECD) of CASR. Conclusion: We reported 3 patients who have activating CASR variant with different onset and severity of symptoms. In the future, further study is needed to determine how the protein level according to the location of the mutation of CASR affects the degree of symptoms.

• 한국문헌정보학회지
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• 제52권2호
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• pp.5-25
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• 2018

본 연구는 공공도서관의 주제전문서비스와 주제전문사서에 대한 문헌정보학과 재학생의 인식에 대한 광범위한 조사연구이다. 전국의 문헌정보학과 학생들을 대상으로 주제전문서비스와 주제전문사서에 대한 인지 수준, 필요성 인식 수준, 주제전문사서의 역량과 현재 학생들의 역량, 주제전문사서의 자격제도 등에 대한 의견을 조사하였다. 그 결과 학생들의 주제전문서비스와 주제전문사서에 대한 이해와 필요성 수준, 주제전문사서로 일하고자 하는 의사, 주제전문사서 역량을 구비하기 위한 추가적인 노력을 기울인 의사가 높은 것으로 나타났다. 주제전문사서의 역량은 학사제도와 문헌정보학의 교과과정을 통해서 구비하고 있지만 아무것도 하지 않는 응답자 비율도 높았다. 주제전문사서 자격제도화 필요성이 있다고 하였고, 주제전문서비스를 하기 위해서는 주제전문성이 가장 중요한데, 현재 학생들은 스스로 주제전문성 부분이 가장 부족하다고 생각하였다. 이 연구의 결과들을 바탕으로 문헌정보학과 재학생들의 현재의 어려움을 개선하고 유능한 주제전문사서로 성장하는데 도움을 줄 수 있는 교육방안 개발에 관심을 두어야 한다고 제언하였다.

• 한국지구과학회지
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• 제32권5호
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• pp.494-503
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• 2011

During the last three decades, earth science has been re-conceptualized as an interdisciplinary discipline entitled Earth System Science (ESS), which is based on knowledge of the physical earth system and human impact on the earth. While there is increasing effort to teach earth as a system in K-12 education, teachers' preparedness of to teach earth system is still in its infancy. This article focuses on reviewing the literature of teachers' knowledge of earth systems and of how teachers' knowledge of subject matter affects their teaching practice and pedagogical content knowledge (PCK). First, the study investigated a literature of PCK in general as well as in science teaching. Then this study duscuss what teachers' subject matter knowledge (SMK) is and what it means to be in teaching earth system science. Third, a literature of teachers' knowledge of earth system was reviewed. Finally, a number of suggestions and implications are made as to what teacher education program should do to better prepare future teachers to teach earth systems.

• 한국언어정보학회지:언어와정보
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• 제11권1호
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• pp.53-76
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• 2007

Case markers in Korean are omissible in colloquial speech. Previous discourse studies of Caseless bare NPs in Korean show that the information structure of zero Nominative not only differs from that of overt Nominative but it also differs from that of zero Accusative in many respects. This paper aims to provide a basis for these semantic/pragmatic properties of Caseless NPs through the syntactic difference between bare subjects and bare objects: namely, the former are left-dislocated NPs, whereas the latter form complex predicates with the subcategorizing verbs. Our analysis will account for the facts that (i) the distribution of bare subject NPs are more restricted than that of bare object NPs; (ii) bare subject NPs must be specific or topical; (iii) Acc-marked NPs in canonical position tend to be focalized.

• Advances in Energy Research
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• 제6권1호
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• pp.17-33
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• 2019

This study aimed to observe trends in the literature on research, development, and innovation management in the energy sector, using performance assessment systems. The paper presented a bibliometric analysis of 40 studies on the subject. These materials come from ScienceDirect, Scopus and the Institute of Electrical and Electronics Engineers (IEEE) databases from 2006 to 2016. The results showed an increasing trend in the number of publications on the theme, showing the scientific community's interest in the subject. In addition, it was verified that the predominant language used to write the publications was English, the country that most published articles in the area was Brazil and most of the articles were produced through collaboration between researchers. It was found that the journal with the greatest number of publications on the subject was the Procedia - Social and Behavioral Sciences, while the Expert Systems with Applications journal presented the article with the greatest number of citations. This analysis allowed us to identify important points of the research and its future directions, in addition to enabling a better understanding of the world trend of the subject approached.