• 산업융합연구
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• 제21권8호
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• pp.23-33
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• 2023

소비자 리뷰분석은 제품 개발, 고객 만족, 경쟁 우위 및 효과적인 마케팅을 위해 중요하다. 무선이어폰 사용 증가는 생활 방식의 성장과 함께 2026년까지 457억 달러에 이를 것으로 예상된다. 따라서 시장의 성장과 중요성을 고려하여, 애플과 삼성의 무선이어폰에 대한 소비자 리뷰를 분석하였다. 본 연구에서는 쿠팡에서 판매되고 있는 애플, 삼성의 무선이어폰 리뷰 11,320건을 수집하여 텍스트마이닝의 빈도, 감성, LDA 토픽 모델 분석을 통해 소비자의 구매의도를 분석하고 소비자 만족도를 분석에 대한 결과를 도출하였다. 토픽 모델링 결과 16개 토픽이 도출되어, 음질, 연결, 쇼핑몰 서비스, 구매의도, 배터리, 배송, 가격 등으로 분류되었다. 브랜드 비교 결과 삼성은 선물 목적으로 구매를 많이 하였고, 가격에 긍정 감정이 높았고, 애플은 배터리, 음질, 연결, 서비스, 배송에 대한 긍정 감정이 높은 결과로 나타났다. 본 연구의 결과는 제조업, 소매업, 마케터 및 소비자를 포함한 고객 만족도, 품질 및 시장 동향에 대한 개선과 통찰력을 얻을 수 있는 연구 결과로 관련 산업의 자료로 활용될 수 있을 것이다.

• 한국산림과학회지
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• 제99권6호
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• pp.849-854
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• 2010

우리나라 특산종인 구상나무의 집단간 및 집단내 개체간 종자 및 발아특성에 대한 변이를 조사하였다. 4개의 천연집단으로부터 구과를 채취하여 종자품질 7가지와 발아특성 3가지를 분석하였다. 분산분석 결과 충실율과 종자활력(TTC)을 제외한 나머지 모든 특성들에서 집단간 및 집단내의 개체간에 유의적인 차이가 인정되었다. 충실율, 발아율 및 발아속도에 대한 변이계수 값(43.5~57.2%)은 다른 특성들(11.0~28.3%)에 비해 변이폭이 컸다. 발아패턴을 보면 종자 파종 후 17일부터 최초 발아가 시작되었으며 79일 이후에는 더 이상 발아가 진행되지 않았다. 발아율은 덕유산집단(8.5%)을 제외한 나머지 집단에서는 높게 나타났으며 39.7~47.7%까지 다양하였다. 이때의 평균발아일수는 38.1~43.6일, 발아속도는 0.98~1.39개/일로 나타났다. 특히 구상나무의 종자 및 발아특성에 대한 상관분석 결과 충실율이 높을수록 발아율이 높고 발아속도가 빠른 정의 상관관계를 보인반면 평균발아일수는 짧게 걸리는 부의 상관관계를 나타냈다.

• 재활치료과학
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• 제8권2호
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• pp.67-78
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• 2019

목적 : 본 연구에서는 말소리장애 아동과 일반 아동을 대상으로 어휘인출 시 단순 손동작(hand tapping)을 반복하게 하는 것이 조음정확도와 유창성에 어떠한 영향을 미치는지에 대해 알아보았다. 손동작을 반복하면서 어휘를 산출하는 것은 주의를 분산시키는 이중과제에 해당하기 때문에, 주의력 저하가 보고된 말소리장애 아동의 경우 일반 아동과 다른 행동 양상을 보이는지를 파악하고자 하였다. 연구방법 : 4, 5, 6세의 말소리장애 아동 15명과 일반 아동 15명이 본 연구에 참여하였다. 조음복잡성이 높은 어휘와 낮은 어휘를 각각 15개씩, 총 30개를 선정하여, 이에 대한 대면이름대기 과제를 실시하였다. 첫 번째 실험조건에서는 단순 손동작을 반복하지 않고, 두 번째 실험조건에서는 손바닥으로 책상을 두드리면서 그림 이름을 말하도록 하였다. 대상자의 반응에 대해 자음정확도, 비유창성 정도, 정확성 변화와 유창성 변화의 상관관계를 측정하여, 두 실험조건에 따른 두 집단 간 수행력을 비교하였다. 결과 : 첫째, 말소리장애 집단과 일반 집단 모두 손동작 반복 과제와 손동작 비반복 과제 간 자음정확도에는 유의한 차이가 없었다. 둘째, 일반 집단은 손동작 반복 과제에서 비유창성이 유의하게 증가하였으나, 말소리장애 집단은 차이가 없었다. 셋째 손동작 반복에 따른 자음정확도 변화와 비유창성 변화는 일반집단의 경우 유의한 양의 상관관계가 있었으나 말소리장애 집단은 아무런 상관을 보이지 않았다. 결론 : 본 연구에서 주의력 분산을 위해 사용한 단순 손동작 반복은 결과적으로 집단에 따라 대상자의 목표행동에 방해가 될 수도, 혹은 그 반대로 도움이 될 수도 있었다. 어휘인출에 대한 손동작 반복의 영향이 두 집단 간 다른 양상으로 나타난 만큼 이에 대한 심층적 논의가 필요할 것이다.

• 인간식물환경학회지
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• 제24권4호
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• pp.403-413
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• 2021

Background and objective: There is growing concern about the effects of modern society on mental health, coming with Covid-19-related caveats on depression, anxiety, and stress (DAS). This can be a subject to provide alternative methods which alleviate DAS. In line with this context, sensory gardens are widely acknowledged to stimulate the five major senses (sight, sound, taste, touch, and smell) and can have a significant (positive) impact on mental health. However, there is limited empirical evidence on the effect of these gardens with regard to alleviating DAS - particularly with respect to urban society This is a gab in knowledge how such limits can be addressed. Accordingly, this present study is clearly needed in order to verify if there are any correlations between sensory gardens and (positive) effects on DAS. The aim of this study was therefore to understand current levels of DAS in a high density building with a sensory garden in a courtyard and determine correlations between experiences in the sensory courtyard and levels of DAS. Methods: The Depression Anxiety and Stress Scale (DASS-21) was employed to test the level of DAS. Results: Additionally, 13 different factors associated with experiences in the building, including the stimulation of the five major senses in the sensory courtyard, were measured to reveal their contribution to mitigating depression, anxiety, and stress. It is noted that the average levels of DAS were 7.91, 7.77 and 9.01 respectively indicating that the mental health of participants requires mental health management. However, results show that factors associated with the sensory courtyard could improve mental health. For example, new social relationships, walking with colleagues, and the stimulation of each of the five major senses in the sensory garden could improve DAS. Conclusion: This illustrates that external experiences are more effective at mitigating depression, anxiety, and stress than internal ones. Factor analysis revealed four components: stimulating the five senses; internal and external facilities; internet-based device use; and new social relationships. There was a strong positive correlation between new social relationships and walking with colleagues. There were also strong positive correlations among the stimulation of each of the five senses. In conclusion, there are strong indications that sensory courtyards can help alleviate DAS and should therefore be promoted, particularly in the current Covid-19 situation wherein the physical and mental health of the public at large are threatened. Accordingly, courtyard design should be rethought in light of the relationship between the positive impact of sensory gardens and mental health.

• Journal of Chest Surgery
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• 제13권3호
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• pp.306-311
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• 1980

Pure red cell aplasia is unusual cause of anemia and a selective aplastic disorder that affects the erythroid series of the bone marrow. Fifty percent of all patients with red cell aplasia will have a thymoma. Twenty-five to 30% of those who undergo thymectomy will be cured. A 57-years-old man was admitted to the medical department of Korea University hospital with complaints. Physical examination reveals a sick looking man with a pale lip, anemic conjunctiva and subicteric sclera. On auscultation, coarse breathing sound and moist rale was heard on the right lung field. Neither the liver nor spleen was palpable. A blood count showed the erythrocytes to number 2,640,000/mm3 and hemoglobin to be 7.0gm/dl. A white blood cell count was 5,000/mm3 and a platelet count was 328,000/mm3 Reticulocyte count was 0.7%. Examination of the peripheral blood smear showed the red cell, to be normocytic and normochromic. Urine sugar was three positive and GTT was positive. The anterior-posterior and lateral view of Chest X-ray was suggestive of an anterior mediastinal mass. A bone marrow biopsy reveals absence of red cell precursors and a normal myeloid series and megakaryocytes. At thoracotomy in May 1980 an encapsulated, lobulated, benign thymoma, which measured 5x7x5 cm was removed, microscopic examination showed it was of the spindle cell type. The postoperative course was uneventful, but the patient never had a return of hemoglobin to the blood. The patient was discharged on the postoperative] 3 days. At postoperative 1 month, the patient was readmitted for bone marrow study and had no return of red cells to bone marrow. At now, patient has been treated with steroid and the further follow up study will be needed.

• 한국치위생학회지
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• 제13권2호
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• pp.279-286
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• 2013

Objectives : The purpose of this study is to provide resources to develop oral health education programs to make schoolchildren be able to do oral care behaviors voluntarily by analyzing the factors affecting elementary school students's oral health behaviors. Methods : A self administered questionnaire based survey was conducted with 233 students (117 boys, 116 girls) of sixth graders at Gyeonggi Province from September 1st to October 2nd, 2012. Researchers explained to willing participants the purpose of this study and then, asked respondents to complete their own questionnaire. A total of 233 questionnaires were properly completed while 7 questionnaires had insincere sections and were thus excepted. Results : 1. Children's higher level of oral health-related knowledge have more positive oral health attitudes(p=0.000) and oral health behaviors(p=0.001). 2. The higher oral health behavior mothers have, the more students have oral health knowledge and better oral health attitude, the higher the oral health behavior children have(p<0.01). 3. Students' positive attitude towards oral health(${\beta}$=0.548, p=0.000) and Mother's more attention to Oral check after tooth-brushing(${\beta}$=-0.149, p=0.005) were associated with children's sound dental health behaviors. Conclusions : The findings of this study suggest that the oral health knowledge, attitude and behaviors are associated with students' oral health behavior. Thus, effective support in oral health education, is need to be enhanced among the elementary school students rather than only focus on conveying knowledge to them. Since, mother's oral health-related knowledge and attitudes on the tooth-brushing behaviour and dental health of their children influence on child's oral health, the development of Comprehensive oral health education program into the mother and child needs to be carried out.

• 대한의용생체공학회:의공학회지
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• 제18권4호
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• pp.485-491
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• 1997

본 논문은 각성상태에 다른 생리신호와 행위신호 및 주관적 평가의 상관관계에 대하여 나타내었다. Nz와 반응시간은 mKSS level 의 변화와 동일한 경향을 나타내는데 반하여 1분당 눈 깜박임 수는 앞의 두 가지 변수와 다른 경향을 나타내었다. 1분당 눈깜박임 수는 mKSS level 1에서 5까지는 낮은 변화율 갖고 mKSS level 7에서는 높은 변화율을 갖는 반면에 mKSS level 9에서는 이와 반대로 변화율이 급격히 감소한다. 피검자들은 서로다른 1분당 눈깜박임 수(EBR)를 가지나 EBR의 변화율은 비슷하였다. 그러므로 EBR의 변화율을 각성판정지표로 사용할 수 있음을 알 수 있었다. 반응시간 실험 결과로부터mKSS level 5이상부터 작업수행능력이 낮아짐을 알 수 있었고 false positive 와 false negative 가 mKSS level3부터 관찰되었으므로 효과적으로 각성제어를 위하여 mKSS level 3과 5사이에 각성상태를 향상시키기 위한 소리나 향기 등의 자극을 주어야 함을 알 수 있었다.

• 대한통합의학회지
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• 제11권1호
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• pp.99-111
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• 2023

Purpose : Although quantitative research on alcohol consumption among nursing students is important, qualitative research is needed to determine the subjective views of individual students, such as their feelings and thoughts, and ensure the implementation of a targeted alcohol intervention program. Q-methodology is a systematic approach that examines the subjective perspectives of individuals, including their views, beliefs, and attitudes, enabling understanding of the types and characteristics according to the individual's subjectivity structure. This study examined the subjective perceptions of drinking among freshmen in nursing college using Q methodology. Methods : Q-sorting was conducted, collecting 38 P samples and 40 statements. The data were analyzed using the PC QUANL program. The principal component factor analysis method was used for Q-factor analysis. Results : The results identified four types of drinking perceptions among freshmen in nursing college. Type 1 was "safety and health pursuit," type 2 was "friendship pursuit," type 3 was "'norm-oriented," and type 4 was "sound manners." When looking at the subjective perceptions of drinking among freshmen in nursing college, there was a common opinion that drinking should not be forced and that it is an individual choice. However, the difference in views (positive and negative) of drinking shows the need for customized educational programs and interventions suitable for each type. Conclusion : Nursing freshmen should be prepared to play an important role in health care as an educational role and model in preventing damage from drinking and maintaining health promotion throughout their life by habituating proper drinking behavior during college life. In addition, it is necessary to develop a plan to increase positive awareness of drinking among nursing students through various strategic programs that can participate in sobriety prevention programs within the university.

• 한국보건간호학회지
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• 제16권2호
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• pp.225-238
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• 2002

The purpose of this descriptive study was to assess sexual orientation and Knowledge and attitudes with regards to AIDS in military personnel, and to provide basic data for developing a further sex education program for them. The data were collected in June 2002 on 242 service members of A Branch of the Ground Army located in Chung-Chung Do Region. They responded to a survey questionnaire that consisted of 68 items: 14 items on sexual orientation. 39 items on knowledge about AIDS, and 15 items on attitudes toward AIDS. The data were analyzed using SAS program. The study results are as follows: 1. Sexual orientation of the military personnel 1) In terms of sexual orientaion, harassment and assault, only $26.4\%$ of the subjects responded as, 'know well'. Appropriate awareness of the legal liability was reported by $21.6\%$ of the subjects regarding sexual harassment and $78.1\%$ of the subjects regarding sexual assault. 2) Pre-marital cohabitant was supported by $89.2\%$ of the subjects. 3) The Korean military personnel showed liberal attitudes toward sexuality as $46.4\%$ of them reported having sexual-relationship with the dating partner is acceptable. 4) The attitudes of the most subjects toward homosexuality was found to be unfavorable. 5) Subjects were m the need of appropriate sex education. of which substantial knowledge on sexual intercourse was the most needy area. 2. Knowledge and attitudes toward AIDS of the military personnel 1) The subjects' level of knowledge on AIDS was relatively low, showing the average score of $22.31\pm7.23$ points (range: 0-39 points). The higher level of knowledge was reported by those who had high level of education, father alive. and less number of brothers in their family. 2) The subjects' attitudes toward AIDS was relatively positive. The attitude toward AIDS was also found to be more positive in those who had high level of education and less number of brothers. 3) There was a positive but weak correlation between knowledge and attitude toward AIDS. The study finding showed that the sexual orientaion of the Korean military personnel was moderately positive and liberal. However, their awareness of sexual harassment and assault and AIDS was still found to be low. As Korean enlisted military service men are likely to be in the ages with strong sexual desire, it may be important for them to have appropriate sexual orientation and attitudes toward AIDS. Therefore, it is recommended to develop further practical and sound sex education programs within the military unit in order to meet their education needs as well as to utilize sex education specialists as the instructors of those programs.

• 가정과삶의질연구
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• 제11권2호
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• pp.13-29
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• 1993

The Purpopse of this study are to classify the lifestyles of urban housewives with automobiles living in Gwangju to see their relationship between lifestyle and demographic social and econo-mic variables and to see the relationship between lifestyle and prepurchase information search activity. For these purpose a survey was conducted using questionaires on 410 The data was collected from March 8 to March 20 1993 and analyzed by factor analysis cluster analysis Duncan test {{{{ chi ^2 }} }}- t e s t a nd ANOVA. The findings are classified into 7 types: enjoyable convenience type (15.6%) conservative sound and thrifty type(17.3%) rationative type (13.2%) thrifty life type (11.0%) passive-inactive type(8.3%) fashion-pursuity type(12.9%) 2) The lifestyles of he respondents showed significant difference according to their age education level employment status. length marriage consumer education and type of housing. 3) The lifestyles of the respondents showed a difference only automobile attitude While showing no significant difference by automobile size information sources of automobile priority of automobile attitude and time spent in searching information The lifestyle of respondents showed a difference by automobile price size quality secuity warranty service and maintenance cost. 4) Among the lifestyle patterns of the respondents the passive-inactive type and rationative typ were positive about all the prepurchase information activity of automobile.