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Impact of Tree Canopy Reduction on Cooling Energy Demand: An Integrated Analysis of Environment, Economy, and Governance Using a University Campus Case Study
No full textUrban green infrastructure plays a vital role in mitigating heat and reducing cooling energy demand. This study examines how declining tree canopy cover impacts cooling energy use, using Utsunomiya Universityʼs Mine Campus (Japan) as a case study. Between 2022 and 2025, the campusʼs canopy coverage declined from approximately 25.0% to 17.5%, mainly due to tree removal for safety and development purposes. Canopy rates were estimated through LiDAR data, satellite imagery, and field verification. Combined with meteorological and electricity usage data, the analysis revealed that a 7.5-point decrease in canopy cover increased cooling energy demand by approximately 4.5%, based on the Tokyo Model (Meili et al., 2025). This translated into an estimated annual rise in electricity costs of about 6.25 million yen and approximately 120 tons of additional CO₂ emissions. Moreover, the removal of about 200 mature trees resulted in the loss of around 180 tons of carbon stock, creating a combined climate impact of roughly 300 tons of CO₂. Comparative analysis with another campus (Yoto Campus), which maintained stable tree cover, further confirmed the substantial influence of canopy loss on energy efficiency. The study also addresses governance challenges, highlighting how tree removal decisions often exclude discussions of long-term environmental and economic impacts. It calls for reflexive governance frameworks that integrate interdisciplinary knowledge and stakeholder participation, especially when managing nature-based solutions (NbS). This research underscores that urban greenery should not be viewed merely as landscape or ecology, but as essential climate-adaptive infrastructure. Strategic canopy management can significantly affect institutional energy efficiency, economic performance, and environmental resilience.departmental bulletin pape
Measurement of electromotive force generated by freezing aqueous salt solutions
No full textThe electromotive force generated by freezing aqueous AgNO3 solutions was measured. The ions are concentrated into freeze-concentrated solutions (FCSs) by phase separation of the aqueous solutions. When the cathode solutions are frozen, the electromotive force increases. The concentration effect was quantitatively evaluated by the activity of silver ions. The degree of force increase depends on the initial concentration of the cathode solution, indicating that FCS morphology and ion uptake into the ice phase play important roles.This is a pre-copyedited, author-produced version of an article accepted for publication in "Chemistry Letters" following peer review. The version of record "Measurement of electromotive force generated by freezing aqueous salt solutions" is available online at: https://doi.org/10.1093/chemle/upaf060journal articl
Practices of learning community leaders in areas affected by the nuclear disaster -- Conceptualizing local human resources that support the development of Co-Agency --
No full text原子力災害被災地域である福島県における地域教育プログラムのアクションリサーチとして実施した「STEAMカフェ」および「STEAMサマーキャンプ」について報告を行う。「STEAMカフェ」における専門家との対話を通じて、当地における教育実践において重要である鍵概念を整理し、「STEAMサマーキャンプ」のプログラム設計に反映した。実践後に行ったグループインタビューの探索的な分析を通じて、研究者と学習者を仲介する存在であるラーニングコミュニティリーダーが、実際にプログラム運営に参画する際に企図した概念を整理した。departmental bulletin pape
Development of experimental materials for universally designed sound education through visualization of vibrations
Full text linkこの文献の著作財産権は日本物理教育学会に帰属します。The copyright of this document belongs to the Japan Society of Physics Education.journal articl
The Life Story of a Japanese Mexican Woman living in Japan
No full textThe purpose of this paper is to elucidate the complexity of gender norms and identity formation in the Japanese-Mexican community through the life story of Chisato, a Japanese-Mexican woman living in Japan. Traditionally, Misawa (2001, 2002) argued that ''family strategies'' positioned second-generation Japanese-Mexican women as bearers of family reproduction, emphasizing the maintenance of cultural homogeneity through marriage and education. However, Chisatoʼs narrative challenges this framework from within. Born into a wealthy household, she chose to study in Japan in order to distance herself from expectations of arranged marriage and family business succession. For her, this mobility was neither assimilation nor escape, but a practice of reconstructing her own life. In Japan, she was othered as a ''Japanese-Mexican'' based on her appearance, name, and language, while in Mexico she was positioned as ''Japanese''. Within this duality, she rewove her subjectivity through her narrative. Her statement that she ''chose'' a marriage she did not originally select demonstrates the power of storytelling to give meaning to life under constraints. Furthermore, her stay in Japan, motivated by education and self-realization rather than economic reasons, presents a new form of mobility for Japanese women not captured by dekasegi studies. Chisatoʼs case, through the experience of a woman from an affluent background, makes visible the stratifications and complexities of marriage norms within the community and highlights the importance of women-centered narratives in Japanese diaspora studies.departmental bulletin pape
Children's Preferred Wild foods in Southern Highland Tanzania and their Benefits: From Focus Group Discussions, Pictures, Questionnaires, and Nutritional Benefits Review
No full textThe article highlighted wild foods that children in southern highland Tanzania preferred through focus group discussions (FGDs) participated by 37 children in 5 groups in 3 villages, 35 pictures pupils drew, and questionnaire answered by 231 pupils. Existing research on micronutrients, minerals, and vitamins for the prioritized plantsbased wild foods were reviewed. Mikusu (Uapaca kirkiana ) was most prioritized in the FGDs and Misasati (Vitex mombassae ) was most drawn. Mtoo (Azanza garckeana ) had 2,313 Kcal/100 g energy, Msaula (Parinari curatellifolia ) 295.5 mg/100 g iron, Misasati 14.0 mg/100 g iron, Mnafu (Solanum nigrum ) 1,070 μg/100g Vitamin A, and Misambalawe (Vangueriopsis lanciflora ) 1148 mg/100 g Vitamin C all beyond the childrenʼs daily requirement.
Makala yalichunguza vyakula vya porini vinavyopendelewa na watoto katika nyanda za juu kusini mwa Tanzania kupitia (Majadiliano ya Kikundi Mahususi) FGDs ikishirikisha watoto 37 katika makundi 5 katika vijiji 3, michoro 35, na dodoso lililojibiwa na watoto 231. Mapitio ya tafiti zilizopo kuhusu virutubisho vidogo, madini na vitamini yalifanywa kwa vyakula vya mimea vilivyopatiwa kipaumbele. Mikusu (Uapaca kirkiana ) ilipewa kipaumbele zaidi kwenye FGDs na Misasati (Vitex mombassae ) ilichorwa zaidi. Thamani za lishe zilizopatikana ni pamoja na: Mtoo (Azanza garckeana ) 2,313 Kcal/100g nishati, Msaula (Parinari curatellifolia ) 295.5 mg/100g chuma, Misasati 14.0 mg/100g chuma, na Mnafu (Solanum nigrum ) 1,070 μg/100g Vitamini A, Misambalawe (Vangueriopsis lanciflora ) 1,148 mg/100g Vitamini C —vyote vikizidi mahitaji ya kila siku ya watoto.本論文はタンザニア南部高地の児童が選好する野生食物を、3村5グループ計37人の集団討論、35枚の絵、231人回答の質問票から絞り出し、そのうち植物由来の野生食物の微量栄養素、ミネラル、ビタミンを既存研究からレビューした。集団討論でミクス (Uapaca kirkiana)、絵でミササティ (Vitex mombassae) が最頻であった。ムトー (Azanza garckeana) はエネルギー量2,313Kcal/100g、ムサウラ (Parinari curatellifolia) 295.5 mg/100g とミササティは14.0mg/100g 鉄分、ムナフ (Solanum nigrum) はビタミンA 1,070μg/100g、ミザンバラウェ (Vangueriopsis lanciflora) はビタミンC 1,148mg/100g を含有し、全て児童の1日の必要量を超えていた。departmental bulletin pape
