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How Have the Advent of Cashless Payments Affected the Demand for Currency in Japan?: Comparison of Three Types of Cashless Payment Methods
Get PDF本研究は，日本においてキャッシュレス決済手段に関するデータの整備・公開が順次進められたことを受けて，3 種類のキャッシュレス決済手段（電子マネー，クレジットカードや QR コード）が通貨需要（通貨流通量）に与える影響についての分析を行った。その結果，3 種類のキャッシュレス決済手段を全て組み込んだモデルにおいて，先行研究と同様に，電子マネーやクレジットカードと通貨需要との間には代替関係があることを確認することができた。なお，この代替関係はクレジットカードが金種を問わないのに対して，どちらかと言えば電子マネーは少額貨幣において確認されるものとなっている。また，電子マネーとクレジットカードの通貨需要に対する弾力性は経済活動水準と同水準にあることがわかった。一方で，QR コードに関しては通貨需要との間に補完関係が存在することとともに，弾力性の水準がかなり小さいことが確認された。このことから，全てのキャッシュレス決済手段が通貨流通量を減少させていくことに繋がってはいないことがわかった。In this study, we analyzed the impact of three types of cashless payment instruments （e-money, credit cards and QR codes）on the demand for currency（the amount of currency in circulation）in response to the sequential development and release of data on cashless payment instruments in Japan. As a result, we confirmed that there is a substitutive relationship between e-money and credit cards and the demand for currency in a model that incorporates all three types of cashless payment methods, as in previous studies. This substitution relationship is confirmed for small amounts of money for e-money, whereas it is independent of the type of money for credit cards. The elasticity of demand for e-money and credit cards was found to be at the same level as the level of economic activity. On the other hand, QR codes have a complementary relationship with the demand for currency, and the level of elasticity of QR codes is quite small. This indicates that not all cashless payment methods lead to a decrease in the amount of currency in circulation.通巻第48号, 論文 / Article
Natural History of Taira Chestnut Farm in Hanno City
Get PDFIn recent years, there has been growing interest in biodiversity. However, documenting natural history requires considering seasonal changes, which demands significant time, funding, and specialized expertise. This study was conducted at the Taira Chestnut Farm along the Koma River in Hi gashi-Agano, Hanno City, Saitama Prefecture, as well as the surrounding areas, focusing on the topography, geology, flora, insects, and vertebrates. The research was carried out as a “citizen survey” by experts from various fields. The findings revealed that while the area maintains habitats for valuable plants and animals, it is in a fragile state. This highlights several challenges faced by many SatochiSatoyama landscapes in Japan, including overpopulation of deer and wild boars, the deterioration of water environments like wetlands and small streams, and the strong link between agricultural activities and biodiversity.論文 / Article 編集：城西大学・城西短期大学地域連携センター紀要編集委員
Where dose proactive, deep learning happen ? - The history of Katsuura Seminar's regional collaboration Project Based Learning -
Get PDF地域教育実践報告 / Reports 編集：城西大学・城西短期大学地域連携センター紀要編集委員
A fun project to energize shops in Moroyama Town - Efforts to develop recipes for local pastry shops by students from other departments -
Get PDF地域活動ノート / Notes 編集：城西大学・城西短期大学地域連携センター紀要編集委員
Creating Opportunities for Children to Expand Their Future Possibilities through Food - Planning and organizing a nutritionist work experience event at a local shopping mall -
Get PDF地域活動ノート / Notes 編集：城西大学・城西短期大学地域連携センター紀要編集委員
Effect of the barrier function of stratum corneum and viable epidermis and dermis on the skin concentration of topically applied chemicals
Get PDFThree-dimensional cultured skin (3D skin) models have been utilized for in vitro skin permeation tests to evaluate the skin permeation rate and local effects (efficacy and toxicity) of applied chemicals, particularly from the perspective of the 3Rs (reduction, replacement, refinement) approach. The steady-state concentration of applied chemicals at different depths in the viable epidermis and dermis (VED) is affected by their skin permeation parameters, such as permeability coefficient (Kp) and partition coefficient (K) from the donor solution to the skin of the chemicals. In the present study, the steady-state concentration of chemicals in the VED of EpiDerm 606X (EpiDerm) as representative of a 3D skin model were compared with hairless rat skin. The VED concentrations of chemicals in EpiDerm were higher than those in hairless rat skin when a model hydrophilic compound, antipyrine, and a model lipophilic compound, flurbiprofen, were applied, suggesting that the barrier functions of the VED against the whole skin were higher in EpiDerm than in hairless rat skin. When an ester compound, ethyl nicotinate, was applied, the VED concentration of nicotinic acid, a metabolite of ethyl nicotinate, was lower in EpiDerm than in hairless rat skin. These differences in the VED concentrations of applied chemicals might be related to false-positives and -negatives of topical effects evaluated with 3D skin models. It is important to pay particular attention to differences in VED concentration in 3D skin models and real skin when evaluating local efficacy and toxicity using 3D skin models
Voices from Komakawa River : Stories of nature, nutrition, and well-being
Get PDF開催日：2025年9月8日（月）～11月9日（日） 開館時間：午前9時30分～午後4時30分 会場：城西大学水田美術館（坂戸キャンパス） 主催：医療栄養学科25周年記念委員会、城西大学水田美術館 企画・監修：真野博、深谷睦、中里見真紀、松本明
