• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1983년도 제17차 학술대회연제순서 및 초록
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• pp.14.1-14
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• 1983

기관발거 곤란증은 주로 외상으로 인한 경우가 많으나 의인적인 기관손상, 즉 high tracheostomy, 부적절한 cannula사용, 2 차감염, 육아조직생성 및 기관전벽의 광범위한 절제 등과, 기타 정신적인요소등이 그 원인으로 알려져 있으며 치료로는 steroid사용, stent삽입, 기관공확장술 및 협착부위를 절제한 후 단단봉합하는 등의 방법이 알려져 있다. 최근 저자들은 2세된 남아에서 기관지 이물제거를 위해 기관절개술을 시행한 후 발생한 기관발거 곤란증 환자에서 Silicon T-tube를 사용하여 치유한 예를 문헌고찰과 함께 보고한다.

• International Journal of Internet, Broadcasting and Communication
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• 제15권3호
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• pp.66-72
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• 2023

Little attention appears to have been paid to the relevance of learning a good representation function in solving long tail tasks. Therefore, we propose a new loss function to ensure a good representation is learnt while learning to classify. We call this loss function Triplet Class-Wise Difficulty-Based (TriCDB-CE) Loss. It is a combination of the Triplet Loss and Class-wise Difficulty-Based Cross-Entropy (CDB-CE) Loss. We prove its effectiveness empirically by performing experiments on three benchmark datasets. We find improvement in accuracy after comparing with some baseline methods. For instance, in the CIFAR-10-LT, 7 percentage points (pp) increase relative to the CDB-CE Loss was recorded. There is more room for improvement on Places-LT.

• Asia Marketing Journal
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• 제17권2호
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• pp.63-71
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• 2015

In this research, we explore whether mere exposure to external cues with vertical progress (e.g., moving upward or moving downward) can influence individuals' persistence to complete focal tasks. Drawing on the theory of embodied cognition, we propose that, a moving-upward (vs. downward) cue activates the abstract concept of difficulty, which is associated with the physical experience of climbing uphill (vs. downhill). Due to this association between moving uphill and difficulty, merely exposing individuals to the moving-upward cue can induce greater feeling of difficulty and this greater difficulty, in turn, reduce individuals' persistence, compared to exposing individuals to the moving-downward cue. Across three studies, we find supporting evidence for the effect of the external cues with vertical progress on individuals' performance both in physical tasks and in a cognitive task.

• 대한예방한의학회지
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• 제17권3호
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• pp.75-89
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• 2013

Objective : The purpose of this study was to investigate the effects of yoga program on depression, quality of life, and difficulty of daily activities in community elders. Methods : A Nonequivalent control group pretest-posttest design was used for this study. Elderly people who agreed to participated in the study were assigned to a experimental group(n=17) or a control group(n=17). The yoga program conducted 90minutes, 2times a week for 1 year. Study outcomes were measured by structured questionnaires from March, 2012 to Feb., 2013. For data analysis, Chi-square test, t-test, and Mann-Whitney U test were performed using SPSS version 17.0. Results : Depression was not significant difference between the two groups in pretest and posttest. But there was significant differences between the two groups in quality of life (t=3.984, p<.001), and difficulty of daily activities (t=-3.083, p=.004). Therefore, the experimental group showed significant improvement in quality of life and reduce difficulty of daily activities. Conclusion : The yoga program was effective in increasing quality of life and decreasing difficulty of daily activities in community elders. When developing exercise program to improve health in older adults, it is important to consider physical exercise plus general health management.

• 보건교육건강증진학회지
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• 제29권1호
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• pp.27-38
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• 2012

Objectives: The purpose of this study is to find the influences of the perceived economical difficulty, gender equality consciousness and sexual subjectivity on the adolescents' attitude to prostitution to examine the moderating effects of gender equality consciousness and sexual subjectivity between the perceived economical difficulty and the adolescents' attitude to prostitution, and to provide some recommendations for intervention to improve more appropriate attitude of adolescents on prostitution. Methods: The data used for this study is from the survey with a sample of 1,151 students from 14 middle and high schools in Chungbuk province. Results: The main results of this study are as follows: First, there are statistical differences in the adolescents' attitude to prostitution according to gender, grade, and the type of school. Second, there is a positive effect of the perceived economical difficulty, gender equality consciousness and sexual subjectivity on the adolescents' attitude to prostitution. Third, there are positive moderating effects of sexual subjectivity between the perceived economical difficulty and the adolescents' attitude to prostitution. Conclusions: Intervening in the sex education at an early stage, advertising prostitution's harmful effect at the level of a social concern and developing diverse programs to enhance the sexual subjectivity of students are recommended to promote appropriate attitude of adolescents about prostitution.

• 가정과삶의질연구
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• 제26권1호
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• pp.85-93
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• 2008

The purpose of this study is to investigate the Korean's value of children and perception of parenting difficulty through the agreement to the three kinds of Korean proverbs: difficulty of parenting, preference of son and value of daughter. Also, this study attempted to identify whether the value of children and the perceived difficulty of parenting measured by the agreement of the proverb is related to the number of children they thought as ideal before marriage and the number of children they actually have. Total 385 married men and women who have a job participated in the survey. Main result is as follows. 1) In most cases, the ideal number of children was at least equal or more than the actual number of children. 2) The subjects showed higher degree of agreement to the proverbs regarding the difficulty of parenting than the preference of son or the value of daughter. 3) The degree of agreement to each kind of proverbs were different in terms of some demographic variables such as age and sex. 4) When the age effect controlled, the ideal number of son had correlation with the agreement to the son-preference proverbs while the ideal number of daughter or total children had no correlation with agreement to any kinds of proverb. The actual number of son was positively correlated with agreement to the son-preference proverbs while actual number of daughter was negatively correlated with it. In conclusion, this study suggests the Korean's value of children has been rapidly changing and it has, in part, an effect on the number of children they want to have or they actually have.

• 한국가구학회지
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• 제21권2호
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• pp.97-110
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• 2010

As the contemporary lifestyle has changed and the time to enjoy hobbies is increased, people prefer the DIY furniture that can be used at homes by manufacturing their own unique furnitures. Especially, the architecture of our country handed down traditionally or the setting-up technique used in furnitures are the techniques to maintain firmness even after long time passes by. Accordingly, in order to supply a firm setting-up technique mostly used by craftsman in the manufacture of DIY furniture and to apply this easily, a web site and 3D program system are required. In order to do so, it is important to prepare the system of setting-up that can be followed easily first by classifying the difficulty of setting-up that the general public can follow easily without having difficulties among the types of setting-up. Therefore, this study has performed a systematic arrangement by the order of difficulty for the types of setting-up that are investigated and arranged to set the purpose as presenting materials that are helpful so the furnitures using setting-up can be manufactured even in the manufacture of general DIY furnitures. Accordingly, the investigated results of setting-up difficulty are applied in the order of difficulty to a 3D program and as users select the suitable setting-up for their own standard, it is expected to be utilized in DIY furnitures that are manufactured directly.

• 산업경영시스템학회지
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• 제40권1호
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• pp.1-10
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• 2017

The difficulties in opening and closing a sport utility vehicle (SUV) tailgate is important aspect of JD (James David) power's Initial Quality Survey (IQS) assessment, and affective quality has a big impact on the the success of thesedays products. The purpose of this study is to evaluate the perceived difficulty and satisfaction of customers by the opening and closing of the tailgate and to grasp the relationship between them and the opening and closing reaction force. The mechanical force required to open and close 42 domestic and overseas SUV tailgates was measured with the help of an auto company. In the experiment, 100 male drivers in their 20s to 50s evaluated perceived difficulty and satisfaction with opening and closing the tailgate. The results of the analysis showed that perceived difficulty and satisfaction were statistically different depending on the vehicle, but did not depend on the personal characteristics of the participants. The perceived difficulty and satisfaction regression model of tailgate opening and closing was developed by mechanical force variables and had a relatively high adjusted $R^2$ ranging from 0.62 to 0.73. The models showed that the the initial close and open force, the difference between initial and maximum close force and the difference between initial and auto-fall angle should be small for the low perceived exertion and high satisfaction. In addition, the correlation analysis between IQS score of tailages and perceived difficulty and satisfaction showed that the IQS scores were more related to the perceived difficulty and satisfaction of closing than those of opening. The results of the study will be helpful to design and test mechanical open and close structure of SUV tailgates.

• 기본간호학회지
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• 제16권2호
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• pp.232-241
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• 2009

Purpose: The purpose of this study was to analyze the importance, difficulty, and frequency of work (duties and tasks) done by nurses' in Outpatient Departments (OPD). Method: Data were collected using structured questionnaires, which included 11 duties and 92 tasks making up the OPD nurse's job. Questionnaires were completed by 286 nurses. Each duty and task was analyzed for importance, difficulty, and frequency (range 1-3). Results: The mean score for importance was $2.58{\pm}0.29$, for difficulty, $2.11{\pm}0.31$, and for frequency, $2.18{\pm}0.31$. OPD nurses recognized 'patient education and consultation' as important and difficult. However, in practice OPD nurses reported the most frequent task as 'support for medical services'. There was a significant difference in importance and difficulty of duties according to OPD nurses' university degree (F=3.693, p=.026; F=4.089, p=.018) and hospital size (F=4.274, p=.006; F=3.154, p=.025). However there were no differences in importance, difficulty, or frequency according to clinical experience in OPD. Conclusion: The findings indicate that OPD nurses must be able to do important and difficult duties and tasks, especially patient education and consultation. To have time for these uniquely nursing tasks, OPD nurses need to delegate 'preparation for medical service', and 'management of facility and environment' to nonmedical health-care workers.

• 척추신경추나의학회지
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• 제14권2호
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• pp.147-156
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• 2019

Objectives : This study aimed to report the evidence of difficulty, safety, and frequency of the use of Chuna Manual Therapy. Methods : The survey questions were developed using the consensus from a professor who majored in Rehabilitation Medicine of Korean Medicine (RMKM). November 26th to December 31st 2018, the questionnaire was given to education training members of the Korean Society of Chuna Manual Medicine for Spine & Nerves by paper. Twenty-nine(23%) of the questionnaires were retrieved. Difficulty, safety, and frequency of the use of Chuna Manual Therapy were reported based on the questionnaire. Results : In this study, the more difficult techniques were observed to be less safe. In particular, the adjustment techniques applied to the cervical and lumbar spine was answered with high difficulty. Although these techniques are high difficulty and low safety, the reason for its versatility also suggests that the technique has a high therapeutic effect and necessity. Conclusions : This is the first consensus on experts'opinions on Chuna Manual Therapy for education. We hope that this report is helpful for Korean medicine doctors who operate technique and expected to make clinical evidence of Chuna Manual Therapy.