• 대한수의학회지
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• 제61권3호
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• pp.25.1-25.7
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• 2021

The axolotl has extraordinary regeneration capacity compared to other vertebrates. This remarkable potential has been attributed to its life-long neoteny, characterized by the exhibition of embryonic characteristics at the adult stage. A recent study provided a detailed morphological analysis of the sperm morphology of the Ambystoma mexicanum using routine and detailed histological techniques. The primary purpose of the present study is to describe a simple and inexpensive method for evaluating the morphology of axolotl sperm. In this study, spermatophore structures were collected and spread on slides and air-dried. The slides were stained with periodic acid Schiff, toluidine blue, Masson's trichrome, Giemsa, Spermac, and Diff-Quik dye for a morphological examination. The slides were coated with gold/palladium for a scanning electron microscopy examination. The sperm of the axolotl consisted of an elongated head, a neck, and a flagellum covered with an undulating membrane. The lengths of the midpiece, tail, and head were 8.575 ㎛, 356.544 ㎛, and 103.661 ㎛, respectively. In the flagellum part, the wavy membrane structure, whose function has not been explained, surrounds the tail. The data obtained from this study will constitute an important step in designing future research on the reproductive and regeneration capacity of the axolotl.

• 한국정보전자통신기술학회논문지
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• 제12권3호
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• pp.257-264
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• 2019

최근 이더넷 신호를 융통성 있게 구성하도록 하는 FlexE는 OTN을 통해 투명하게 전달하기 위하여 OTN으로 수용하는 것을 ITU-T에서 권고하고 있다. FlexE신호를 OTN 페이로드로 맵핑할 때 발생할 수 있는 비트율 차이를 보상하기 위하여 유휴 코드워드를 제거하거나 삽입하는 방법을 사용한다. 그러나 이와 같은 방법을 구현하기 위해 필요한 세부적인 기능 블록은 아직 공개되고 있지 않다. 본 논문에서는 최근 ITU-T 요구사항을 기초로 하여 400G급을 기준으로 FlexE 신호의 OTN 맵핑을 위한 세부적인 기능 블록을 살펴보았다. 또한 세부 기능 블록을 바탕으로 유휴 코드워드의 제거 및 삽입되는 발생 특성을 얻기 위하여 수학적인 분석을 하였고, 이를 이용한 시뮬레이션을 결과를 보였다.

• 한국IT서비스학회지
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• 제17권4호
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• pp.85-100
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• 2018

In this study, we formulated rational criteria to efficiently provide traffic information services via a crafted approach. By utilizing this, we presented a detailed traffic information service providing method that can overcome the limitations of existing link unit information provision system. Three methodologies such as user survey, data mining, and KHCM (Korea Highway Capacity Manual) utilization method were applied to formulate a rational expression standard for traffic information service. Each method was designed to establish a quantitative criterion for various traffic conditions and to enable user-oriented traffic information service in consideration of the traffic principal/compatibility. Considering the results of each methodological analysis in a comprehensive manner, the basic expression standards for traffic information service was formulated. Then we presented improvements such as traffic condition step by road, speed range of traffic condition, expression term of traffic condition and so on. In order to complement the problems of the information provision system of the existing link unit based on the derived improvement criterion, we presented the detailed traffic information service provision method by using the traffic speed data of the second order. And we applied this to the two links of Daegu city. The method presented in this research can improve the quality of traffic information service. Not only it can be used for various fields such as optimal route search, traffic safety service and so on.

• 한국치위생학회지
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• 제21권2호
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• pp.193-201
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• 2021

Objectives: We evaluated the learning objectives of dental hygiene courses based on Bloom's learning objectives, and analyze the degree of match with the dental hygienist's job for each detailed subject. Methods: The 5th edition of 'Dental hygiene and learning objectives' was analyzed by subject based on Bloom's cognitive domain classification from March 10 to April. In addition, the degree of match between the contents of the secondary job analysis of the dental hygienist and the learning objectives for each detailed subject were analyzed. Results: The total number of dental hygiene learning objectives was 2,975 (2,762 theory, 52 practice). Among the cognitive domains, the comprehension domain was the most common (79.8%), and the skill domain was very low (4.9%). In the job for each detailed subject of dental hygiene, the most frequently performed was 'dental prophylaxis and practice' with 103 subjects. Conclusions: Overall, dental hygiene learning objectives are mostly theory-oriented, so it is necessary to expand and improve in the direction related to the jobs that clinical dental hygienists perform in the field. In addition, it is necessary to continuously develop timely learning goals, and prepare active strategies for developing high-quality items.

• 한국응급구조학회지
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• 제27권2호
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• pp.79-89
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• 2023

Purpose: This study aimed to develop a standardized protocol of systematic and explicit roles and procedures for paramedics for the maternal and newborn management during prehospital emergency delivery situations. Methods: This study is a methodological study with detailed step-by-step items proposed by an expert group based on evidence from a literature review. The content validity of the proposed preliminary prehospital emergency delivery protocol was verified before the final protocol was confirmed. Results: All 23 detailed items of the preliminary protocol met the reference cut-off (CVI value of 0.8 or higher). After considering, revising, and supplementing expert opinions for each of the 23 items 23 detailed in the proposed protocols, four steps were confirmed. The steps included five items for the management of the imminent mother, 10 items for delivery progress, five items for newborn management, and three items for postpartum management of the mother. Conclusion: This study's findings may serve as reference for developing future specialized training programs for paramedics, to ensure enhanced competence in prehospital emergency delivery situations. The protocol should be reviewed and revised periodically to ensure currency.

• 한국지반공학회논문집
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• 제15권6호
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• pp.307-317
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• 1999

본 연구에서는 기존의 액상화 평가방법과 국내의 지진규모(M=6.5)를 고려한 수정 상세예측법을 비교 분석하였다. 액상화 발생 가능성은 흙의 액상화 저항강도와 지진에 의해 토층내에 유발되는 전단응력을 비교하여 평가하였다. 지진에 의한 전단응력은 지진응답해석을 이용하여 산정하며 흙의 액상화 저항강도는 진동삼축시험결과를 이용하여 산정한다. 진동삼축시험은 상대밀도(50%, 60%, 70%)와 초기유효구속압(70kPa, 100kPa, 150kPa) 그리고 세립분함유량(10%, 20%, 30%)을 변화시키며 시료를 재성형하여 수행하였다. 기존의 액상화 평가방법과 수정 상세 예측법 결과를 비교해 볼 때, 수정 상세 예측법은 연약한 사질토지반$(FS \leq1.5)$에서 액상화 안전율을 기존 평가방법에 비하여 크게 산정하는 것으로 나타났다. 본 연구결과를 토대로 액상화 발생가능성 판정시, 진동삼축시험에 기초한 수정 상세 예측법을 이용하도록 제안하였다. 또한 국내 발생 지진규모 6.5를 고려한 수정 상세 예측법에서의 액상화가 발생할 수 있는 최대심도는 약 15m인 것으로 나타났다.

• 한국응용과학기술학회지
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• 제37권3호
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• pp.526-542
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• 2020

본 연구는 PGA 정규 투어 남자프로골프대회에 자원봉사자로 참석한 대학생들의 참여 만족과 불만족에 대한 귀납적 분석 방법을 통하여 내용을 분석 후 결과를 도출하였다. 본 연구의 대상자는 2019년 "2019 더 CJ컵@나인브릿지 골프대회에 자원봉사자로 참여한 대학생을 대상으로 실시하였으며, 300명의 응답자 중 설문내용이 충실하지 못하다고 판단되는 76부를 제외한 224부를 내용분석 하였다. 먼저 참여 만족의 전체 세부영역인 408개의 원자료를 중심으로 2차 귀납적 범주분석을 실시하여 전체 10개의 세부영역과 5개의 일반영역으로 범주화하였다. 구체적으로 살펴보면, 첫째, "골프대회 경험만족"은 골프대회, 골프정보, 골프장으로 구분되었다. 둘째, "선수만족"은 직접관람, 유명선수로 구분되었으며, 셋째, "환경만족"은 장소만족, 시설만족으로 구분되었고, 넷째, "참여만족"은 봉사만족, 유능감 만족으로 구분되었다. 마지막으로 "대인관계 만족"은 세부영역과 동일하게 적용하여 구분하였다. 참여 불만족의 경우 전체 세부영역인 369개의 원자료를 중심으로 2차 귀납적 범주분석을 실시하여 전체 10개의 세부영역과 3개의 일반영역으로 범주화하였다. 구체적으로 살펴보면, 첫째, "대회운영 시스템 불만족"은 세부적으로 업무 체계 불만, 운영 체계 불만, 관리 체계 불만, 전달 체계 불만으로 구분되었다. 둘째, "자원봉사 처우 불만족"은 자원봉사 처우 불만, 업무과다 불만, 근무시간 불만으로 구분되었으며, 셋째, "자원봉사 복지 불만족"은 식음료 불만, 복장불만, 부대시설 불만으로 구분되었다.

• 대한간호학회지
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• 제13권3호
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• pp.1-33
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• 1983

The role and function of nursing care nowadays, tend to acquire sophisicated technology because specialization has expended due to increase of the medical population and the improvement of national health standards. To implement nursing care independently as a professional nurse, the apprehension of specific knowledge and skill should be acquired during basic nursing education. So it is important for nursing education not only to include theory and actual techniques, but also to strengthen the practical training in the actual clinical setting. This study was carried out with the following objectives; 1. To survey the detailed content and frequency of actual nursing students display during their clinical training. 2. To investigate the detailed content and frequency of actual nursing behavior which students display in each clinical a area. 3. To identify the motive for selection of nursing as their major and to determine the degree of self confidence, extent of knowledge and recognition of nursing responsibility. 4. To observe the relationship between actual nursing behavior and each of the following; 1) Motive for selecting nursing as a major 2) Self confidence 3) Knowledge of nursing care 4) Recognition of nursing responsibility The conclusions of this study were as follows; 1. Among the detailed nursing behavior which junior nursing college students carry out in clinical training; taking respiration's showed the highest frequency, and taking body temperatures, blood pressures, and pulses and making beds were next in frequency in this order. 2. In detailed nursing behaviors according to clinical area; taking vital signs showed the highest frequency in the emergency room, pediatric ward, orthopedic ward, general surgical ward and internal medicine ward. However, in the operating room, assisting with endotracheal tube insertion and sterile techniques were showen to have the highest frequencies. In nursery, umbilical cord care and the measurement of body weight were the highest in frequency In neurosurgical ward, the measurement of vital signs, changing position and tracheostomy care were the highest in frequency. In obstetric and gynecological ward and in the delivery room, checking duration, intensity and frequency of contractions was the highest in frequency. 3. In regard to the motive for majoring in nursing, the aptitude and interest of the student had the highest percentage(32.86%), and self-confidence in nursing activities (M=3.36), knowledge in nursing activities.(M=3. 09), and the recognition of the nursing activity (M= 3.76) wire in the middle range. 4. When the detailed nursing behaviors were compared with motive, self confidence, knowledge and recognition, it was found that when the nursing behavior was difficult and regarding much endeavor although the motive was high, the frequency of the nursing behavior was rather low. But in the cases in which there was much self confidence and a high level of skill was required, nursing behavior was carried more frequently. When there was muck self confidence and skill was not required, the frequency of nursing behavior was rather low. In the cases of a high level of knowledge, the frequency of nursing behavior was low and when recognition for nursing behavior was given the frequency of nursing behavior was low.

• 대한치과의사협회지
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• 제13권11호
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• pp.1071-1073
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• 1975

• 한국진공학회:학술대회논문집
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• 한국진공학회 1998년도 제16회 학술발표회 논문개요집
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• pp.152-152
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• 1998