• Journal of the Korean Society for Library and Information Science
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• v.55 no.1
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• pp.161-180
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• 2021

This study investigates ethical dilemmas of teacher-librarians in their professional practice. Within the framework of "Librarians' Statement of Ethics" by Korean Library Association, the study used the survey and semi-structured interview with teacher-librarians. 259 teacher-librarians responded the survey and 5 teacher-librarians participated the interview. The survey was analyzed using descriptive statistics to find how often teacher-librarians experience ethical dilemmas. The semi-structured interview was transcribed and analyzed to draw the individual cases of teacher-librarians' ethical dilemmas. The results indicate that teacher-librarians experience ethical dilemmas in relation to information access and intellectual freedom most often. It was difficult for teacher-librarians to relate their professional duties with their expertise and that they were not clear on how to avoid copyright issues and how to deal with the balance between users and copyright holders. This study had implications that individual dilemma cases are so context-dependent that teacher-librarians had to make decisions individually. They tried hard to find the balance between protecting students from harmful resources and library ethics. Researchers and practitioners need focus more on finding where the balance is and how teacher-librarians deal with their ethical dilemmas.

• Korean Journal of School Psychology
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• v.16 no.3
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• pp.453-470
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• 2019

This study aimed to investigate how teacher's attitude toward violence affect students who experienced bullying victim in their role in making peer-to-peer violence deepen, and how students who experienced the bullying victim react to show aggression, and the aggression is blocked by teacher's attitude toward violence, resulting in decrease of doing the bystander's negative behavior. By conducing this study, this study ultimately aimed to ensure that the teacher's attitude toward violence is very important in preventing peer bullying in the classroom. To achieve this aims, this study conducted a survey of 820 fourth, fifth and sixth graders in 40 classes at 10 elementary schools and limited only 365 of the respondents who reported experiencing peer bullying victim. This study utilized the structural equation modeling method to analyze the data. The results were as follows. First, it showed that the lower the bystander's negative behavior in victims who experienced peer bullying, and the lower the responsive aggression reacted from the peer bullying, when the teacher shows an unacceptable attitude toward violence. Teacher's attitude toward violence also appears to affect peer bystander's negative behavior by mediating peer bullying victim's reactive aggression, indicating that the teacher's attitude toward classroom violence may reduce the aggression of students from the experience of victimization, and consequently prevent the classroom from becoming more leprosy by reducing peer bullying.

• Water for future
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• v.27 no.1
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• pp.123-131
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• 1994

A plunge pool is often employed as an energy-dissipating device at the end of a spillway or a pipe culvert. A jet from spillways or pipes frequently generates a scour hole which threatens the stability of the hydraulic structure. Existing scour prediction formulas of plunge pool of spillways or pipe culverts give a wide range of scour depths, and it is, therefore, difficult to accurately predict those scour depths. In this study, a new experimental method and new scour prediction formulas under submerged circular jet for large bed materials with shallow tailwater depths were developed. A major variale, which was not used in previous scour prediction equations, was the ratio of jet size to bed material size. In this study, jet momentum acting on a bed particle and jet diffustion theory were employed to derive scour prediction formulas. Four theoretical formulas were suggested for the two regions of jet diffusion, i.e., the region of flow establishment and the region of established flow. The semi-theoretically developed scour prediction formulas showed close agreement with laboratory experiments performed on a movable bed made of large spherical particles.

• Journal of the Korean Arthroscopy Society
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• v.17 no.1
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• pp.95-99
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• 2013

We introduce arthroscopic Bankart repair technique using antegrade suture passer that can effectively restore detached anteroinferior capsulolabral complex for shoulder anterior instability. After diagnostic arthroscopy is performed using posterior, anteroinferior and anterosuperior portals, we confirm Bankart lesion and perform debridement and decortications of anteroinferior glenoid edge and neck. Suture anchor is inserted through anteroinferior portal at 2 mm medial side of glenoid edge (4:30 direction). Scorpion$^{TM}$ loaded suture is directly advanced to detached and retracted anteroinferior capsulolabral complex and the suture is passed at 10~15 mm medial side of detached anteroinferior capsulolabral complex (5:30 direction). The suture is retrieved by Scorpion's hook and then is tied using samsung medical center (SMC) sliding knot technique. Then suture anchors are serially inserted (2:30, 3:30) and capsulolabral complex repair is performed using suture hook and suttle-relay technique. This technique that can obtain anatomical restoration of anteroinferior glenohumeral ligament with proper tension is useful technique to reduce postoperative recurrence and makes it possible for less experienced surgeons.

• Journal of the Korean Geotechnical Society
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• v.35 no.1
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• pp.5-15
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• 2019

In this study, the in situ deformation moduli, which were measured by borehole loading tests at basaltic rock masses located in the northeastern onshore and offshore and the northwestern onshore of Jeju Island, were examined in relation to RQD and RMR. The measured deformation moduli were also compared with the estimated deformation moduli from conventional empirical formulas using RQD and RMR. In addition, the measured deformation moduli were analyzed with respect to both the velocity ratio ($V_P/V_S$) and dynamic Poisson's ratio, which were obtained from the elastic wave velocities measured by velocity logging tests. As results, with only RQD, it was inappropriate to evaluate the quality of the Jeju island basaltic rock masses, which are characterized by vesicular structures, to select a measurement method of in situ deformation moduli, and to estimate the deformation moduli. On the other hand, it was desirable to evaluate the quality of the Jeju Island basaltic rock masses, and to estimate the deformation moduli by using RMR. The conventional empirical formulas using RMR overestimated the deformation moduli of the Jeju Island basaltic rock masses. There was qualitative consistency in the relation between velocity ratio and deformation moduli. To estimate appropriately the deformation moduli of the Jeju Island basaltic rock masses, empirical formulas were proposed as the function of RMR and velocity ratio, respectively.

• Tuberculosis and Respiratory Diseases
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• v.43 no.3
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• pp.403-409
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• 1996

Background : Pleural fluid collections may pose a difficult therapeutic problem. Complete drainage of complicated effusions or empyemas and reexpansion of atelectatic lung are important in obtaining a satisfactory clinical outcome. The usual approach to the diagnosis and treatment of patients with pleural effusion and empyema has been with needle thoracentesis and chest tube drainage. With chest tube drainage, technical difficulties and failures may occur as a result of improper tube drainage, particularly when there is a loculation or multiple and inaccesible collections. Fluoroscopic or sonographic guidance facilitates the proper tube insertion and drainage. Method : Twenty eight patients were required for tube drainage due to pleural fluid collections between January 1994 to February 1996. The author compared the results of drainage under applying each different method between blind chest tube insertion and image guided catheter insertion. Results : The conventional blind chest tube group comprised 14 patients; 6 empyema, 6 tuberculous effusion, and 2 parapneumonic effusion. The image guided catheter group of smaller french were composed of 14 patients; 2 empyema, 6 tuberculous effusion, 5 parapneumonic effusion, and 1 effusion of undetermined origin. Radiologic improvement with successful drainage was noticed in 79% with the blind chest tube group, whereas in 93% with the image guided catheter group. The complication with the latter method was unremarkable. Conclusion : Image guided catheter drainage was safe and highly successful in treating patients, not only with complicated effusion also with loculated empyema. Image guided catheter drainage offers an alternative in patients in whom closed drainage is required as the initial treatment.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.190-190
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• 2023

습지, 호수 및 강 등을 포함하는 수체는 증발 및 비교적 높은 열용량을 통하여 주변 기온에 영향을 미친다. 이러한 효과는 수체의 크기, 형태, 그리고 깊이 등 수체의 특성에 따라 다르게 난다. 대부분의 경우 수체는 주변 기온을 저감시키지만, 특정 경우 반대로 기온을 상승시키는 효과를 불러온다. 아울러, 같은 수체라도 수체 주변 지역의 구조나 형태, 그리고 기후 조건에 따라 그 영향이 다르게 나타난다. 이에 대부분 연구자는 수치해석, 원격탐사 기법, 혹은 관측을 사용하는 방법 등을 사용하여 경험적으로 수체마다 기온변화 효과를 달리 평가하였다. 하지만, 이러한 평가는 대부분 국외에서 수행되어왔으며, 강, 하천, 그리고 호수 등이 주로 연구되어왔다. 탄소저감 및 높은 기후조절 효과를 가지는 습지는 물을 포함하고 있어, 당연히 수체로 취급될 수 있다. 습지의 다양한 기능 중 기온조절 효과는 습지의 가치 및 중요성을 평가하기 위하여 반드시 연구되어야 한다. 국외의 경우, 관련 연구가 수행된 바 있지만, 우리나라의 경우 관련 연구가 아직 수행되지 않았다. 수체의 기온조절 효과는 수체의 특성, 주변 지형의 특성, 그리고 기후 조건 등에 영향을 받음으로 국외 연구 결과들을 국내 습지에 그대로 적용할 수 없다. 따라서, 우리나라습지에 대한 평가가 달리 수행되어야 한다. 본 연구에서는 이러한 습지의 기온조절 효과를 평가하고자 광주호 습지를 대상으로 ENVI-met 수치해석 모형을 사용하여 그 지역의 여러 가상의 발전시나리오를 구축하고 모의 결과를 분석하였다. 그 결과, 광주호 습지의 기온저감 효과는 약 2km 정도까지 미치는 것으로 확인되었고, 그 규모는 기후 조건 및 주변 지형의 특성에 따라 달리 나타났다.

• Journal of the Korean Geotechnical Society
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• v.24 no.12
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• pp.85-92
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• 2008

It is necessary to develop a rational design method for surface reinforcement of very soft ground because most current design works rely on merely crude empirical correlations. In this paper, the mechanical behavior of very soft ground that is surficially reinforced was investigated with the aid of a series of numerical analyses. Several material properties of each dredged soft ground, reinforcement and backfill sand mat have been exercised in the numerical analysis. The result of numerical analysis was compared with those of the laboratory model test. Through the matching process between the numerical and experimental result, it is possible to determine representative material properties of the dredged soft ground, reinforcements and backfill sand mat. These verified material properties permit to evaluate the effect of the stiffness of reinforcement and the thickness of sand mat on the overall deformation of the reinforced soft ground.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.477-490
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• 2019

This study analyzes the process of overcoming prejudice and discrimination experiences of mothers with disabilities and looks for improvement points. It is interviewed 9 mothers of children with disabilities who were experiencing prejudice and discrimination while raising children with disabilities. The data collection was conducted from October to November, 2018 and one by on one in depth interview by using semi - structured questionnaires. Data analysis was done through consensual qualitative research (CQR). The result of CQR while it is a experiencing the process of prejudice and discrimination as well as coping the raising disabled children. 'Prejudice and discrimination experience of mothers with disabilities' and 'overcoming of discrimination experiences of mothers with disabilities' were derived. And the seven sub-regions, 28 categories, were finally constructed. The results of the study are as follows. Firstly, Prejudice and discrimination experiences of mothers with disabilities in raising children with disabilities are view of looking at children with disabilities comparing to those of normal children and children with disabilities. It seems that they want to treat the disabled child as the general child with an attitude of understanding and accepting the disabled child rather than looking at the disabled child with wrong perception, prejudice, stereotypes and rejection. Secondly, The process of overcoming the discrimination experiences of the mother of the disabled child is strengthening the cohesion and cohesion within the family in the process of accepting and coping with the disability family of the child with disabilities even if they raise the child with disability and have difficulties such as recognition bias and discrimination of the general public. Based on the results of this study, we suggested practical and policy implications for the mother's psychological stability of the child with disability and the disabled child's healthy life.

• Korean Journal of Social Welfare Studies
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• no.37
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• pp.199-240
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• 2008

This study set out to investigate the adaptation process and experiential structure of those children who went through sexual abuse by looking into their inner worlds in order to understand what kind of meaning sexual abuse had on them. For that, the investigator conducted in-depth interviews with 13 children aged 8~16 who lived at the shelter after experiencing sexual abuse. The methodology of Grounded Theory by Strauss and Corbin(1990) was used to analyze raw data. The analysis results indicate that the core theme of the adaptation process among the children living at the shelter after sexually abused by kin and kith was "hoping to appear the same as others." According to the results, the core phenomenon was "blaming the victims." The causal conditions include "broken families," "antihuman sexual abuse," "making sexual abuse a public issue," and "the trap of the family." The contextual conditions include "the chain named family," "family as the last fortress" and "structural enforcement of silence." The intervening strategies was "dual emotions toward the shelter." The action/interaction strategies include "aftermath of violence" and "trying to escape." The consequences were "preparation for the future" and "uncertain future." The identified stages include the confusion, keeping the secret, leaking the secret to others, intervention by others, social support and challenge and adjustment stage. The three identified types were "withdrawal and avoidance," "settling down in reality" and "overcoming and challenging." Based on the analysis results, discussions were made about the social welfare plans and intervention strategies in the conclusion.