• 성인간호학회지
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• 제20권5호
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• pp.778-790
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• 2008

Purpose: This study was conducted to develop Web-based multimedia contents for supporting student nurses' clinical practice on critical care, and to evaluate learners' responses. Methods: Based on the steps of Assessment, Design, Development, Implementation, & Evaluation(ADDIE) model, a total of 13 self-directed learning modules including live lectures and real video clips were developed through faculty collaboration of nine nursing colleges in Gwangju and Chonnam province. The finally developed multimedia contents were published on the Web of the learning management system at a local e-learning center. Results: The Web contents were evaluated after self-learning by 81 junior college nursing students who were encouraged to study it at their own pace during their two-week clinical practice at a medical or surgical intensive care unit of a university hospital and two hospitals. The knowledge (t = -27.66, p < .001) and self-evaluated clinical performance level(t = 7.54, p < .001) were significantly increased after learning of the Web contents and clinical practice, and satisfaction level that measured post-test only was 4.0 out of 5 point. Conclusion: The use of Web contents for critical care need to be extended as a complimentary material in a class room lecture or clinical practice of students to increase their self-learning ability and understandings of clinical knowledge and situation.

• Journal of Nutrition and Health
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• 제22권6호
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• pp.438-446
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• 1989

1. 본 연구 조사대상자인 22명의 Type IIahypercholesterolemia 환자군에 있어서 혈중지질 농도에 영향을 미치는 여러가지 식이성분 섭취량 측정법을 비교했을 때, 24시간회상법은 식이섭취 기록법보다 대체로 높은 수치를 나타냈다. 2. 식품섭취기록기간에 따른 섭취량 측정을 비교할때에 7일간의 기록은 9일간의 기록에 근사한 수치(5% 이내)를 나타냈다. 3. 본 연구 조사대상자에 있어서 주말과 주중의 섭취량에는 큰 차이가 없었다. 단 P/S ratio 만은 주중과 주발을 비교할 때 유의적인 차이가 있었다. 4. 식품섭취기록기간에 따른 섭취량 측정에서는 남녀의 차이가 현저하였다. 여자의 경우, 4일의 기록표는 9일과 5%이내의 차이를 보였으나, 남자의 경우, 4일의 기록표는 9일과 12%의 차이가 있었다. 주중과 주말을 비교할 때에도 남녀의 차이가 있었다. 5. 본 연구에서 분석한 여러 식이성분 중 그 섭취량에 가장 변동이 심한성분은 P/S ratio와 알콜이었다.

• Journal of Acupuncture Research
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• 제27권2호
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• pp.115-121
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• 2010

Objectives : Based on a national sample survey, we present an analysis of the current situation in the use of moxibustion therapeutics by qualified medical practitioners in Korea. Methods : The survey population of 11,737 hospitals is stratified by administrative regions, and 331 of them are randomly selected from the list of hospitals. The same number of Korean medical doctors is interviewed under the computer-assisted telephone interviewing(CATI) system. The bound on the error of estimation is ${\pm}\;5.0%$ point. Results : Of the 331 Korean medical doctors surveyed, 69% have used moxibustion therapy for remedial treatment. About half of those doctors have employed the therapy for their patients over 30%. The average number of acupuncture points per treatment using the therapy mostly ranges 1 between 5. The percent of practitioners, who have the number of average minutes less than 20 in treatment, is 74%. The number of practitioners who primarily use modified moxibustion is 4 times as many as that of those using traditional moxibustion. Conclusions : Considering the survey results, if the laser heater, alternative to conventional moxibustion, which not only gives high thermal effect but also reduces both the users inconvenience and side effects, are developed, it may benefit more patients as well as Korean medical doctors.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제37권1호
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• pp.36-42
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• 2011

Introduction: The current study examined the morphological characteristics of maxillary sinus septum by computed tomography (CT). Materials and Methods: Two hundred and four patients (408 maxillary sinuses) who visited dental clinic were evaluated. CT were examined. The height of the septum measured from the sinus floor to the apex of the septum more than 3 mm was defined as "sinus septum". Results: The prevalence of sinus septa was 21.3% (87/408), and 31.4% (64/204) of patients had more than 1 sinus septum. Females showed higher and thinner sinus septa than males. The anatomic location of the septa were distributed in the 2nd molar region (43.7%), 1st molar region (31.0%), 2nd premolar region (21.8%) and 1st premolar region (3.5%). In 57 patients with chronic disease, there was no significant difference between sinus disease and the presence of sinus septa. The loss of remaining teeth and teeth adjacent to the sinus septum area was not related to the presence of sinus septa. Older subjects showed a reduced height and length of the septum, and a thicker septum. Conclusion: These results show that the maxillary sinus septum undergoes atrophy with age.

• Imaging Science in Dentistry
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• 제44권4호
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• pp.279-285
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• 2014

Purpose: To assess the influence of anatomic location on the relationship between computed tomography (CT) number and X-ray attenuation in limited and medium field-of-view (FOV) scans. Materials and Methods: Tubes containing solutions with different concentrations of $K_2HPO_4$ were placed in the tooth sockets of a human head phantom. Cone-beam computed tomography (CBCT) scans were acquired, and CT numbers of the $K_2HPO_4$ solutions were measured. The relationship between CT number and $K_2HPO_4$ concentration was examined by linear regression analyses. Then, the variation in CT number according to anatomic location was examined. Results: The relationship between $K_2HPO_4$ concentration and CT number was strongly linear. The slopes of the linear regressions for the limited FOVs were almost 2-fold lower than those for the medium FOVs. The absolute CT number differed between imaging protocols and anatomic locations. Conclusion: There is a strong linear relationship between X-ray attenuation and CT number. The specific imaging protocol and anatomic location of the object strongly influence this relationship.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 춘계학술대회
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• pp.662-665
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• 2013

지능형 교수 시스템은 컴퓨터 보조 학습의 한계를 극복하고자 인공지능 기법을 도입하여 학습자의 현재 상황에 동적으로 융통성 있는 교육 여건을 지원하는 시스템이다. 그러나 기존의 지능형 교수 시스템들은 학습 성취도 향상에 중요 변인인 학습자의 특성, 학습자 수준 등을 고려하지 않고, 획일화 된 학습 내용들을 제공하고 있다. 이로 인해 효과적인 학습에 어려움이 있으며, 학습자의 학습 목표에 맞는 코스 스케줄링이 적응력 있게 동적으로 제공되지 못하는 문제점이 있다. 본 논문에서는 학습자의 특성과 학습자의 수준에 맞는 학습 내용 및 동적 학습 코스 제공을 위한 ITS 기반의 적응형 학습 추천 시스템을 제안한다. 성공적인 학습을 우한 중요 변인인 학습자의 특성 파악을 위해 자가 진단 테스트 모듈을 적용하였다. 그리고 학습자의 수준 파악을 위해 기존 단답식 위주의 단순 평가가 아닌 문항반응이론에 근거하여 학습 요소별 학습자의 객관성 있는 수준을 파악을 위해 학습 평가 모듈을 적용하였다.

• 디지털융복합연구
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• 제18권2호
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• pp.285-290
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• 2020

본 연구는 워드프로세서를 사용하여 영어텍스트구문을 작성하는 사용자들의 영어작문능력을 개선하는 방안을 제시하고자 한다. 컴퓨터와 IT기술의 발달로 영어작문능력 향상을 위한 컴퓨터보조언어학습이 보편적으로 사용되고 있다. 기존의 프로그램들은 일부 단어의 철자, 접속사의 필요성, 주어-동사의 수일치 등과 같은 몇몇 문법오류사항을 인식하여 표시해주는 기능이 있다. 그러나 사용자가 작성한 영어문장의 적절성에 대한 소수의 오류사항을 알려주고 있지만 영어문장에서 가장 흔하게 사용되고 있는 명사구성립의 적법성에 대한 오류인식은 하지 못하고 있다. 따라서 본 연구는 기존 워드프로세서의 문장오류인식 프로세스에 명사구성립인식 기능을 추가하여 더 나은 오류인식기능을 갖추도록 개선하여 사용자 편의성 및 문장적법성을 향상시키는 방안을 제시한다. 제안 방법은 문장 내에 사용된 명사를 추적하여 해당 명사가 문장요소로 사용되기 위한 최소단위인 명사구성립 여부를 확인하고 그에 따라 오류표기를 하여 사용자가 인식할 수 있도록 해준다. 사용자는 오류사항에 대한 인식을 통해 자신이 작성한 텍스트의 문장 적법성을 확인하고 수정하면서 문장작성 능력 및 적절한 어법의 사용에 대한 이해도가 증가할 것이라 판단된다.

• 한국수정란이식학회지
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• 제28권1호
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• pp.63-71
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• 2013

In this study, we used flow a cytometric assay to evaluate plasma membrane integrity and mitochondrial activity in post-thawed sperm that was supplemented with ginsenoside-$Rg_1$. Varying concentrations of ginsenoside-$Rg_1$ (0, 25, 50 and $100{\mu}M/ml$) were used in the extender during cryopreservation to protect the DNA of thawed sperm, thereby increasing the viability and motility rate as evaluated using a computer-assisted sperm analysis (CASA) method. The results derived from CASA were used to compare the fresh, control, and ginsenoside-$Rg_1$ groups. Sperm motility and the number of progressively motile sperm were significantly (p<0.05) higher in the $50{\mu}M/ml$ ginsenoside-Rg1 group ($61.0{\pm}4.65%$) than in the control ($46.6{\pm}7.02%$), $25{\mu}M/ml$ ($46.2{\pm}4.76%$), and $100{\mu}M/ml$ ginsenoside-$Rg_1$ ($52.0{\pm}1.90%$) groups. However, the velocity distribution of post-thawed sperm did not differ significantly. Membrane integrity and MMP staining as revealed using flow cytometry were significantly (p<0.05) higher ($91.6{\pm}0.82%$) in the $50{\mu}M/ml$ ginsenoside-$Rg_1$ group than in the other groups. Here, we report that ginsenoside-$Rg_1$ affects the motility and viability of boar spermatozoa. Moreover, ginsenoside-$Rg_1$ can be used as a protective additive for the suppression of intracellular mitochondrial oxidative stress caused by cryopreservation.

• 대한수의학회지
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• 제40권1호
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• pp.187-195
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• 2000

The ejaculates from 67 HanWoo prove bull, bred in Livestock Improvement Main center of NLCF, were used to determine the correlation between the sperm motional characteristics and the pregnancy rate of artificial insemination(AI). The motional characteristics of sperm were analysed by Computer-assisted sperm analyser(CASA), thereafter inseminated equally 1,256 heads of cow regarding to parity, age, and live weight. There were no significant difference(p>0.05) in the pregnancy rate according to year from 1996 to 1998, but the LIN, ALH, STR, BCF, MAD and WOB of sperm in the year 1997, were highest pregnancy rate, were higher than those of sperm in the year 1998, were lowest pregnancy rate(p<0.05). The semen had no significant effect on pregnancy rate according to season(p>0.05). However spring, had a little higher pregnancy rate than that of autumn, were higher than autumn in VSL, VAP, LIN, ALH, BCF, MAD and WOB, but in DNM. The pregnancy rates of spring in the year 1996 and 1997 were higher than that of autumn in the year 1998(p<0.05). The spring in the year 1997, highest in pregnancy rate, were higher than the autumn in the year 1998 in VSL, VAP, LIN, STR, BCF, MAD and WOB, but in DNM(p<0.05). There were no the motion characteristic of sperm that was significant correlate with pregnancy rate of AI as the semen were analysed before artificial insemination and those, had some degree characteristics in motility, viability and abnormality, were used to AI. However there were a tendency that the higher the VSL, VAP, ALH, LIN, STR, BCF, MAD and WOB and the lower the DNM were, the higher the pregnancy rate of AI were.

• 한국작물학회지
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• 제50권1호
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• pp.32-38
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• 2005

A long-term study initiated in 1989 at San-born Field, Columbia, Missouri, was designed to evaluate the affect of environmental factors, nitrogen application, and crop rotation on soybean (Glycine max [L.] Merr.) seed composition. Soybeans were grown as part of a four- year rotation which included corn (Zea maize L.), wheat (Triticum aestivum L.), and red clover (Trifolium pratense L.). Results from soil tests made prior to initiation of the study and subsequently every five years, were used to calculate application rates of nitrogen, phosphorus, and potassium necessary for target yield of pursuant crops. In the experimental design, nitrogen was applied to one-half of the plot on which the non-leguminous crop, either corn or wheat was grown. Analysis of soybean seed by near infrared reflectance spectroscopy collected over an 11-year period revealed a linear increase in protein and decrease in oil content. Application of nitrogen fertilizer to non-leguminous crops did not have an apparent effect on total protein or oil content of subsequent soybean crop. Analysis of soybean seed proteins by sodium dodecyl sulfate polyacrylamide gel electrophoresis in conjunction with computer­assisted densitometry revealed subtle changes in the accumulation of seed proteins. Immunoblot analysis using antibodies raised against the $\beta-subunit$ of $\beta-conglycinin$ showed a gradual increase in the accumulation of the 7S components during successive years of the experiment. A linear increase in temperature and decrease in rainfall was observed from the onset of data· collection. Higher temperatures during the growing season have been linked to increased protein and diminished oil content of soybean, thus changes observed in this study are possibly related to climatic conditions. However, crop rotation and subsequent changes in soil ecology may contribute to these observed changes in the seed composition.