목적 : 본 연구의 목적은 시각장애 청소년의 일상생활활동에 대한 경험과 어려움을 탐색하여 작업치료가 필요한 주요 영역을 파악하고, 작업치료에 대한 인식 수준을 확인함으로써 향후 작업치료 서비스 제공을 위한 기초자료를 마련하는 데 있다. 방법 : 2023년 8월 15일부터 10월 31일까지 계통추출방식을 통해 선정된 시각장애 청소년 6명을 대상으로 반 구조화된 심층면담을 실시하였다. 면담은 작업치료 실행체계 4판에 근거한 기본적 일상생활활동, 수단적 일상생활 활동, 작업치료 인식으로 구성하여 총 4회기, 회기당 60분씩 진행하였다. 수집된 자료는 현상학적 연구방법인 콜라 이지(Colaizzi)의 분석 방법을 적용하였으며, 질적 연구의 신뢰도와 엄밀성을 확보하기 위해 질적 연구 보고 지침 (COREQ: Consolidated Criteria for Reporting Qualitative Research)을 준수하였다. 결과 : 시각장애 청소년은 기본적 일상생활활동에서 시각 보상과 환경수정을 통해 수행이 가능하였으나, 타인의 인식으로 인해 심리적 위축을 경험하였다. 수단적 일상생활활동에서는 대부분의 영역에서 어려움을 보고하였으나, 전자기기와 소프트웨어를 활용해 일부 활동의 어려움을 보완하고 있었다. 작업치료에 대한 인식은 전반적으로 낮았 으며, 재활서비스는 중증 장애인을 위한 것이라는 인식이 나타났다. 결론 : 시각장애 청소년은 일상생활활동 전반에서 다양한 어려움을 경험함에도 불구하고 작업치료에 대한 인식 은 낮은 수준이었다. 작업치료 서비스 접근성 향상과 적극적인 정보 제공을 통해 시각장애 청소년을 위한 작업치료 서비스의 확대가 필요함을 시사한다.

In this paper, we review the extended halo material and the circumgalactic medium (CGM), including both dust and gas, and discuss promising science cases that could be realized using the KASI Deep Rolling Imaging Fast Telescope (K-DRIFT). Scattered starlight from cirrus clouds in our Galaxy poses one of the major challenges to studying the low surface brightness features of extragalactic sources. Therefore, it is essential to investigate how to discriminate extragalactic sources from cirrus cloud features. At the same time, interstellar dust clouds themselves are fundamental to understanding dust properties and the interstellar radiation field, both of which are essential for studies of chemical evolution and star formation in our Galaxy. Measuring the reddening of background sources, such as quasars, with K-DRIFT, which benefits from its broad field of view and accurate background subtraction, allows for the effective detection of extended dust in galactic halos, the CGM, and intracluster space. Observations of the Hα emission lines can be used to identify signatures of star formation activity within galaxies, as well as the environmental effects acting on them. Galactic winds driven by active galactic nuclei and starbursts can be traced through Hα emission. Strong ram pressure stripping effectively removes the interstellar medium (ISM) from galaxies. The stripped ISM becomes ionized or dissociated through mixing with the hot intracluster medium (ICM), forming Hα tails. The surface brightness of these Hα tails correlates not only with the presence of star formation in the tails but also the mixing stage of the stripped ISM and ICM. The Hα survey with K-DRIFT will enable the investigation of the evolutionary stages of ram pressure stripped galaxies in cluster environments, as well as the multiphase gas reservoir around galaxies and in the CGM.

We present the result from a comprehensive laboratory and on-sky characterization of the commercial spectrograph system consisting of a PIXIS 1300BX charge-coupled device (CCD) camera and an IsoPlane 320A spectrograph as part of the preparation of the forthcoming all-sky spectroscopic survey of nearby galaxies (A-SPEC). In the laboratory, we have quantified readout noise, dark current, gain, and full-well capacity via bias, dark, and photon transfer curve analysis at all acquisition modes. To do that, we have developed a gradient correction technique to address row-dependent signal gradients in the image, which are caused by the shutter-less condition of our CCD camera test setup. The technique successfully reproduces the values in the manufacturer specifications. We also have measured quantum efficiency exceeding 80% from 400–800 nm and ≳ 90% between 450–750 nm, with sub-second persistence decay, making it ideal for rapid, multi-object spectroscopy. Using a set of diffraction gratings (150, 300, and 600 grmm−1), we have evaluated the spatial separability of multiple spectra and spectral resolution. We have conducted a test observation with this spectrograph system at the Seoul National University Astronomical Observatory (SAO) 1 m telescope and successfully demonstrated its capability of multi-object spectroscopy with moderate resolution of R ≈ 600–2600. We release all Python codes for the test and recipes to facilitate further instrument evaluations.