코로나-19 상황에서 상담전공 학부생의 비대면 집단상담 실습 경험

이진현(Lee, Jinhyun),오민정(Oh, Minjung),이성욱(Lee, Seonguk),이혜진(Lee, Hyejin),김수임(Kim, Sooim) 학습자중심교과교육학회 2022 학습자중심교과교육연구 Vol.22 No.8

목적 본 연구는 코로나-19 상황에서 상담전공 학부생들의 비대면 집단상담 실습 경험을 탐구하고, 비대면 집단상담 실습수업의 가능성과 한계를 살펴보고자 한다. 방법 이를 위하여 경기도 소재 대학교 집단상담을 수강하는 상담전공 학부생 31명을 대상으로 비대면 집단상담 매회기 경험 보고서를 수집하였다. 수집된 269개의 자료는 Elo와 Kyngäe(2008)의 귀납적 내용분석 방법을 적용하여 개방코딩, 그룹화, 추상화의 총 3단계 과정을 통해 분석하였다. 결과 분석 결과 비대면 집단상담 실습 경험은 109개의 핵심개념으로 드러났으며, 각각의 개념은 25개의 하위범주와 7개의 범주로 나타났다. 그리고 연구참여자들의 경험을 잘 제공하기 위해 7개의 범주를 다시 4개의 영역으로 분류하였다. 7개의 범주로는 ‘타인의 시선과 자기개방에 대한 두려움’, ‘자기 이해의 촉진’, ‘집단원들과의 긍정적인 정서 경험’, ‘실질적인 변화의 경험’, ‘상호작용을 통한 성장’, ‘예비상담자로서의 배움’, ‘비대면 상담 환경에 기인한 경험’으로 나타났다. 4개의 영역은 ‘집단 경험에서의 어려움’, ‘성장집단의 치료적 요인’, ‘학습 경험’, ‘비대면 상담 경험’으로 분류되었다. 결론 연구결과를 바탕으로 상담 전공 학부생들의 비대면 집단상담 실습 경험의 특징과 시사점을 논의하였다. 본 연구가 비대면 교육 현장에서 상담전공 학부생들에게 질 높은 실습 수업을 위한 다양한 시사점을 제공할 것으로 기대한다. Objectives This study explores the experiences of non-face-to-face group counseling practice for undergraduate counseling majors in COVID-19 situations, and examines the possibilities and limitations of non-face-to-face group counseling practice. Methods To this end, 31 undergraduate students who took a group counseling at a university in Gyeonggi-do collected a non-face-to-face group counseling experience report. The 269 data collected were analyzed in a total of three steps: open coding, grouping, and abstraction by applying the inductive content analysis methods of Elo and Kyngäe(2008). Results As a result of the analysis, 109 core concepts were revealed in the non-face-to-face group counseling practice experience, and each concept was divided into 25 subcategories and 7 categories. And to provide a good experience for the study participants, 7 categories were further divided into 4 areas. The seven categories are ‘fear of others’ gaze and self-opening’, ‘promotion of self-understanding’, ‘positive emotional experience with group members’, ‘experience of substantial change’, ‘growth through interaction’, ‘learning as a preliminary counselor’, and ‘experience due to non-face-to-face counseling environment’. In the four domains, ‘difficulty in group experience’, ‘therapeutic factors of growth group’, ‘learning experience’, and ‘non-face-to-face counseling experience’ were classified into four domains. Conclusions Based on the research results, implications for the experience of non-face-to-face group counseling practice of undergraduate counseling majors were discussed.

Evaluating the Optoelectronic Quality of Hybrid Perovskites by Conductive Atomic Force Microscopy with Noise Spectroscopy

Lee, Byungho,Lee, Sangheon,Cho, Duckhyung,Kim, Jinhyun,Hwang, Taehyun,Kim, Kyung Hwan,Hong, Seunghun,Moon, Taeho,Park, Byungwoo American Chemical Society 2016 ACS APPLIED MATERIALS & INTERFACES Vol.8 No.45

<P>Organic-inorganic hybrid perovskite solar cells have emerged as promising candidates for next-generation solar cells. To attain high photovoltaic efficiency, reducing the defects in perovskites is crucial along with a uniform coating of the films. Also, evaluating the quality of synthesized perovskites via facile and adequate methods is important as well. Herein, CH3NH3PbI3 perovskites were synthesized by applying second solvent dripping to nonstoichiometric precursors containing excess CH3NH3I. The resulting perovskite films exhibited a larger average grain size with a better crystallinity compared to that from stoichiometric precursors. As a result, the performance of planar perovskite solar cells was significantly improved, achieving an efficiency of 14.3%. Furthermore, perovskite films were effectively analyzed using a conductive AFM and noise spectroscopy, which have been uncommon in the field of perovskite solar cells. Comparing the topography and photocurrent maps, the variation of photocurrents in nanoscale was systematically investigated, and a linear relationship between the grain size and photocurrent was revealed. Also, noise analyses with a conductive probe enabled examination of the defect density of perovskites at specific grain interiors by excluding the grain-boundary effect, and reduced defects were clearly observed for the perovskites using CH3NH3I-rich precursors.</P>

Early treatment volume reduction rate as a prognostic factor in patients treated with chemoradiotherapy for limited stage small cell lung cancer

Lee, Joohwan,Lee, Jeongshim,Choi, Jinhyun,Kim, Jun Won,Cho, Jaeho,Lee, Chang Geol The Korean Society for Radiation Oncology 2015 Radiation Oncology Journal Vol.33 No.2

Purpose: To investigate the relationship between early treatment response to definitive chemoradiotherapy (CRT) and survival outcome in patients with limited stage small cell lung cancer (LS-SCLC). Materials and Methods: We retrospectively reviewed 47 patients with LS-SCLC who received definitive CRT between January 2009 and December 2012. Patients were treated with systemic chemotherapy regimen of etoposide/carboplatin (n = 15) or etoposide/cisplatin (n = 32) and concurrent thoracic radiotherapy at a median dose of 54 Gy (range, 46 to 64 Gy). Early treatment volume reduction rate (ETVRR) was defined as the percentage change in gross tumor volume between diagnostic computed tomography (CT) and simulation CT for adaptive RT planning and was used as a parameter for early treatment response. The median dose at adaptive RT planning was 36 Gy (range, 30 to 43 Gy), and adaptive CT was performed in 30 patients (63.8%). Results: With a median follow-up of 27.7 months (range, 5.9 to 75.8 months), the 2-year locoregional progression-free survival (LRPFS) and overall survival (OS) rates were 74.2% and 56.5%, respectively. The mean diagnostic and adaptive gross tumor volumes were 117.9 mL (range, 5.9 to 447 mL) and 36.8 mL (range, 0.3 to 230.6 mL), respectively. The median ETVRR was 71.4% (range, 30 to 97.6%) and the ETVRR >45% group showed significantly better OS (p < 0.0001) and LRPFS (p = 0.009) than the other group. Conclusion: ETVRR as a parameter for early treatment response may be a useful prognostic factor to predict treatment outcome in LS-SCLC patients treated with CRT.

Controlling effect of xenon light source on tobacco cutworm (Spodoptera litura)

Jinhyun Kim,Jaehan Lee,KyoungSub Park,Dongsu Lee,Jungseop Lee 한국농약과학회 2018 한국농약과학회 학술발표대회 논문집 Vol.2018 No.10

In vivo dosimetry and acute toxicity in breast cancer patients undergoing intraoperative radiotherapy as boost

Lee, Jason Joon Bock,Choi, Jinhyun,Ahn, Sung Gwe,Jeong, Joon,Lee, Ik Jae,Park, Kwangwoo,Kim, Kangpyo,Kim, Jun Won The Korean Society for Radiation Oncology 2017 Radiation Oncology Journal Vol.35 No.2

Purpose: To report the results of a correlation analysis of skin dose assessed by in vivo dosimetry and the incidence of acute toxicity. This is a phase 2 trial evaluating the feasibility of intraoperative radiotherapy (IORT) as a boost for breast cancer patients. Materials and Methods: Eligible patients were treated with IORT of 20 Gy followed by whole breast irradiation (WBI) of 46 Gy. A total of 55 patients with a minimum follow-up of 1 month after WBI were evaluated. Optically stimulated luminescence dosimeter (OSLD) detected radiation dose delivered to the skin during IORT. Acute toxicity was recorded according to the Common Terminology Criteria for Adverse Events v4.0. Clinical parameters were correlated with seroma formation and maximum skin dose. Results: Median follow-up after IORT was 25.9 weeks (range, 12.7 to 50.3 weeks). Prior to WBI, only one patient developed acute toxicity. Following WBI, 30 patients experienced grade 1 skin toxicity and three patients had grade 2 skin toxicity. Skin dose during IORT exceeded 5 Gy in two patients: with grade 2 complications around the surgical scar in one patient who received 8.42 Gy. Breast volume on preoperative images (p = 0.001), ratio of applicator diameter and breast volume (p = 0.002), and distance between skin and tumor (p = 0.003) showed significant correlations with maximum skin dose. Conclusions: IORT as a boost was well-tolerated among Korean women without severe acute complication. In vivo dosimetry with OSLD can help ensure safe delivery of IORT as a boost.

Effects of Bojanggunbi-tang and its major component herbs on chronic colitis induced by dextran sulfate sodium

Jinhyun Bae,Hyejin Joo,Jun-Seon Lee,Ji-Hye Park,Jae-Heung Cho,Youngmin Bu,Beom-Joon Lee,Jae-Woo Park 한국실험동물학회 2020 한국실험동물학회 학술발표대회 논문집 Vol.2020 No.2

Understanding hydroscopic properties of silk fibroin and its use as a gate-dielectric in organic field-effect transistors

Lee, Jung Hun,Kwak, Hyo Won,Park, Min Hong,Hwang, Jinhyun,Kim, Jin Woo,Jang, Ho Won,Jin, Hyoung-Joon,Lee, Wi Hyoung Elsevier 2018 Organic electronics Vol.59 No.-

<P><B>Abstract</B></P> <P>Silk fibroin (SF) has attracted great interest as gate dielectric in organic field-effect transistors (OFETs), owing to outstanding characteristics such as high dielectric constant, transparency, flexibility, and solution processability. In this report, we investigated the relationship between the structural properties of SF films and their performance as SF gate dielectrics in OFETs. Solvent vapor treatment with water or methanol altered the structural properties of the SF films, which adopted a β-sheet structure; accordingly, both the surface energy and areal capacitance of the SF films were reduced. Notably, atmospheric water contributed to the increased capacitance of the SF film, especially before the solvent vapor treatment. The growth characteristics of pentacene on the SF films were determined by the surface conditions of the films; in particular, Stranski-Krastanov (layer-plus-island) growth mode with mixed standing-up/lying-down orientation of pentacene on the SF film was observed before solvent vapor treatment, whereas Volmer-Weber mode with standing-up orientation dominated after solvent vapor treatment. Pentacene OFETs based on the untreated SF film exhibited a higher on-current compared with the devices based on the solvent vapor-treated SF film. The hydroscopic characteristics of the untreated SF film enhanced its capacitance, thereby inducing accumulation of hole carriers. The present results show that the structural characteristics of SF films have a marked impact on the electrical properties of OFETs based on SF gate dielectrics. In particular, the water uptake capability of SF is a key factor in the electrical properties of organic electronic devices using SF materials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Structural properties of silk fibroin (SF) as gate-dielectrics influenced performances of organic transistors. </LI> <LI> Pentacene transistors based on the untreated SF film exhibited a higher on-current compared to other SF films. </LI> <LI> The hydroscopic characteristics of the untreated SF film enhanced its capacitance, thereby increasing hole carriers. </LI> <LI> Water uptake capability of SF is a key factor in the electrical properties of organic transistors based on SF. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

An Analysis of Energy Consumption According to the Change of Circulation Pump Power

Jinhyun Lee(이진현),Subeen Kang(강수빈),Inae Suh(서인애),Younghum Cho(조영흠) 한국태양에너지학회 2017 한국태양에너지학회 학술대회논문집 Vol.2017 No.4

Development of Set-point Control Algorithm of Economizer System using Prediction Model

Jinhyun Lee(이진현),Younghum Cho(조영흠) 한국태양에너지학회 2023 한국태양에너지학회 학술대회논문집 Vol.2023 No.4

Controlling effect of xenon light source on tobacco cutworm (Spodoptera litura )

Jinhyun Kim,Jaehan Lee,KyoungSub Park,Dongsu Lee,Jungseop Lee 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10

친환경 해충 방제 방법 중 LED를 비롯한 빛을 이용한 해충방제가 활발하게 연구되고 있으며, 해양, 농장, 축사 등 산업적인 측면뿐만 아니라 사회 전반적인 분야에서 활용되고 있다. 해충 기피램프의 광원은 주로 LED(550~630mm)가 활용되고 있으나 출력이 약해 넓은 면적에 적용이 힘든 단점이 있다. 이에 제논램프를 이용한 넓은 면적에 적용 가능한 식물재배용 해충 기피램프를 적용하여 담배거세미나방에 의한 작물 및 피해과실률을 비교하였다. 특정 파장(870~920mm, 자외선:가시광선:적외선=2:34:64)을 방출하는 제논램프를 높이 2.5m, 2/10a개 설치하였다. 광원의 처리는 3수준(일몰 후 2시간 경과 시점부터 2시간, 4시간, 무처리)으로 하였으며, 나방의 유입을 원활하게 하기 위하여 모든 출입구를 개방하였다. 과실 피해가 발생한 후 출입구를 폐쇄하여 제논램프가 유입된 나방의 작물 및 과실 가해를 억제하는지 조사하였다. 토마토 재배는 경상남도 함안(35° 15’ 0”N / 128° 25’ 0”E)의 유리온실(6*10*5m)에 토마토(데프니스, 유럽종)를 재식간격 1m(줄 간격), 0.5m(포기사이거리)재배하였다. 생육기간은 4월 12일 정식하여 8월 2일까지이다. 토마토 재배기간 동안 격주간격으로 생육(초장, 엽면적, 잎, 과실, 줄기의 생체중 및 건물중)조사를 하였으며, 매주 피해과, 정상과의 수량을 조사하였다. 조사 결과 대조구에서 엽의 건조 중량이 21%정도 낮았으며, 줄기의 건조 중량은 2.5배 높았으며, 초장, 엽면적은 차이가 없었다. 제논램프 처리 시간에 따라 피해과실률((피해과실 중량(g)/총 과실 중량(g))*100)은 제논램프 4시간 : 초기 7.59 → 2주 후 0.02a, 2시간 : 초기 3.41 → 2주 후 6.32b, 대조구 초기 10.00 → 2주 후 42.71c% (Analysis of variance, p < 0.1) 로 조사되었다. 대조구에서는 유입된 담배거세미나방이 온실 내에서 번식함에 따라 엽의 생체중은 감소하였으나 엽면적에서는 유의한 차이를 보이지 않았는데, 이는 대조구의 잎이 심하게 황화된 경우가 많았고, 이 때문에 엽면적은 증가하였으나 중량감소 하였다. 제논램프 2시간, 4시간 처리에서는 담배거세 미나방에 의한 작물 및 피해과실률이 감소하였으며, 제논램프 4시간 처리에서 유의하게 높은 방제 효과를 보였다.