Soka University Repository / 創価大学機関リポジトリ
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初任者教員のメンタルヘルス不調を察知し、支援する教育行政の取組に関する一考察
Get PDF昨今、精神疾患による病気休職者数が過去最多を記録し、教員不足が深刻な課題となっている。学校現場では、初任者教員が悩みを打ち明けにくい状況が散見される。本研究では、学校の外側から注視する教育委員会指導主事による初任者教員のメンタルヘルス不調の早期発見・早期対応の取組に注目した。調査の結果、不調には「個人的要因」と「環境要因」があり、それらが複合的に関連していることが明らかになった。また、指導主事は「初任者研修」、「学校訪問」、「教育行政としての教員支援施策」を通じて直接的・間接的支援を講じており、個人及び組織としての対応の工夫が見られた。不調に結び付くリアリティショックを軽減するためには、入職前に教職経験を積める新しい教員養成課程の編成、初任者教員を複数で支援する援助チームの構築、管理職やメンターへの研修の充実等を図ることで、メンタルヘルス不調の未然防止・早期発見に寄与するものと考える。departmental bulletin pape
Reevaluation of Lyuh Woon-hyung: A Text Mining Analysis of Discourse on Lyu Woon-hyung in Four Major Korean Newspapers
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Treatment of the elementary sentence pattern "tsumori(da)" and the need for instruction outside of the submission section
Get PDF日本語初級教材では「～ つもりだ」が扱われることが多いが、その意味や用法が十分に教えられず、コミュニケーション上の誤用が生まれる可能性の高い文法である。その裏付けとして上級レベルの学生に対する調査でも、「～ つもりだ」を十分理解していないことがわかった。誤用が生まれやすい例文に触れながら、初級での指導内容を考える。departmental bulletin pape
Development of a core-shell capsule with microalgaenitrifying bacteria consortium for nitrogen removal
No full textConventional biological nitrogen removal processes from nitrogen-rich wastewaters,such as those derived from livestock operations or semiconductor manufacturing, are energy-intensive due to the requirement for mechanical aeration during the nitrification process. In recent years, microalgae and nitrifying bacteria consortia have been explored as a sustainable alternative to supply oxygen by microalgae via photosynthesis, thus potentially eliminating the need for mechanical aeration. Among various approaches, photogranules have gained increasing attention for their high treatment efficiency. However, natural photogranule formation requires a prolonged incubation periods ranging from several weeks to months, limiting their practical application. To address this limitation, we developed a photogranule-mimetic microalgae–nitrifying bacteria capsule using a rapid, reverse-dropping method. The capsule was constructed in a core–shell configuration where the liquid core contained nitrifying sludge (3.0 g-SS L-1), and the alginate-based shell (0.5 wt% sodium alginate) immobilized the green microalga Chlorella sorokiniana (1.0 g-SS L-1). The capsules were formed by extruding the core suspension containing calcium chloride as a cross-linking agent into the shell solution containing alginate, and shell formation was monitored over various cross-linking durations (5–30 min). Shell thickness increased almost linearly with time, reaching 1.8 mm at 30 min. A cross-linking time of 15 min yielded a shell-to-core volume ratio of approximately 2.0, enabling precise control of biomass distribution and achieving target concentrations in the photobioreactor (0.3 g-SS L-1 nitrifiers, 0.1 g-SS L-1 microalgae) using 2153 capsules per liter. Batch experiments were conducted under white LED illumination (200 μmol photons m-2 s-1, 12 h light/12 h dark cycles) at pH 7.0 without mechanical aeration. Over a 7-day period, the capsules removed 80.4% of the initial 40 mg-N L-1 ammonium, and complete nitrification was observed within the first 72 hrs. The ammonium removal rate reached 1.0 mg-N mg-TSS-1 h-1, significantly exceeding that of conventional co-im-mobilized hydrogel systems (0.43 mg-N mg-TSS-1 h-1). This enhanced performance was attributed to the improved mass transfer properties of the thin alginate shell and the efficient oxygen diffusion from microalgal photosynthesis into the capsule core. Compared to traditional photogranules, the proposed encapsulation approach offers several advantages: (1) rapid fabrication within minutes compared to biological photogranules synthesis, (2) spatial control over microbial distribution, and (3) elimination of energy-intensive aeration. However, some limitations were also observed. Capsule mechanical integrity decreased over time due to calcium ion leaching and shear stress during operation, suggesting the need for future optimization of encapsulation materials to enhance durability. Nonetheless, this study demonstrates the feasibility of using engineered core–shell capsules to mimic the functionality of natural photogranules, thereby providing a scalable and energy-efficient platform for high-rate, light-driven biological nitrogen removal in wastewater treatment.departmental bulletin pape
On Distribution for Infinite Sum of Random Variables: Cases for Normal and Poisson Distributions
Get PDFWe consider the infi nite sums of normal and Poisson random variables, respectively. We show two examples to indicate that the convergence of the infinite sum for the mean is insufficient to establish the existence of the distribution for the infi nite sum of the normal variables. We derive the suffi cient condition for the infi nite sums of these random variables.departmental bulletin pape
Consideration for Questions Encouraging Awareness of Nuance in English Literature
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Lifelong Learning Initiatives at a Self-Access Center: Practices and Challenges
Get PDFLifelong education has become a priority in modern educational landscapes, emphasizing continuous learning beyond traditional schooling. Self-Access Centers (SACs) are practical manifestations of this concept, designed to empower learners with resources and guidance for self-directed learning, thereby preparing students to be lifelong learners even after graduation. SACs address diverse student needs by offering a wide range of materials and support services tailored to individual learning styles and goals. This study explores the role of the World Language Center Self-Access Centers (WLC SAC) at Soka University in supporting lifelong learning initiatives. Data were collected from foreign language course instructors, students, and the WLC SAC staff to gain comprehensive insights into how the WLC SAC facilitates lifelong learning and how it is perceived by different stakeholders. The results indicate that the WLC SAC contributes to promoting lifelong learning by fostering self-directed learning, peer collaboration, and effective resource utilization among students. However, communication gaps between the WLC SAC staff and instructors, as well as varying levels of student awareness and utilization of the WLC SAC resources, limit the maximum impact of the WLC SAC. This study emphasizes the need for enhanced strategies to increase awareness and strengthen collaboration between the WLC SAC staff and instructors. By addressing these challenges, the WLC SAC can better support students in becoming proactive, self-motivated learners, thereby fulfilling its role in nurturing lifelong learning.departmental bulletin pape