Health Sciences University of Hokkaido Academic Repository / 北海道医療大学学術リポジトリ
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Research on the development of 3D bioprinting scaffolds for bone replacement in the craniomaxillofacial region
Get PDF北海道医療大学博士（歯学）令和5年度thesi
日本の訪問看護における移動の概念分析
Get PDF目的：日本の訪問看護における移動の概念分析を行い，定義と構成概念を明らかにする．
方法：日本国内で発表された31文献を対象としRodgersの概念分析法で分析を行った．
結果：９つの属性：【ひとりで次々と利用者宅へ移動し看護を提供】【臨機応変な判断に続く移動】【利用者の状況を推し測り時間を意識して移動】【時間が足りない切迫感と事故のリスク】【長距離の運転と負担】【悪条件の中で状況判断しながらの移動】【駐車場所確保の労力と残る不安】【不便な駐車場所からの移動の負担】【訪問のあい間に移動と重なり合う業務や休憩】，11の先行要件，6つの帰結が抽出された．
結論：日本の訪問看護における移動とは，「地域の交通事情の影響を受けながら最適な訪問スケジュールを検討し，安全に移動するための取り組みを経て，臨機応変な判断を行いながら時間を意識し，ひとりで次々と利用者宅を訪問して看護を提供するプロセス」と定義された．departmental bulletin pape
Analysis of a Questionnaire Regarding Health Sciences University of Hokkaido Students’ Attitudes Towards Studying Abroad
Get PDFThe number of Japanese studying abroad has been declining. Similarly, at Health Sciences University of Hokkaido, the number of students participating in language programs at the University of Alberta, Canada, has gradually declined since its peak in 1998. However, no study has analyzed the reasons for the decline in the number of students studying abroad. Therefore, the purpose of this study is to explore students' interests and concerns regarding study abroad. The researchers surveyed 656 first-year students about studying abroad. The results showed that nearly 70% of the students were not interested in studying abroad, and many of those who were interested preferred less expensive and shorter programs. As for desired destinations, the United Kingdom and Australia were ranked first, but students were interested in a variety of regions, including the Philippines and Singapore. Thus, there is a need to improve study abroad programs, taking into account the students' perspectives.departmental bulletin pape
Effects of chemomechanical decontamination methods and biological growth factors for bone differentiation on rough titanium surfaces
Get PDFPeri−implantitis is a plaque−associated pathological condition affecting both the soft and hard tissues around implants. Ichioka et al. (2019) indicated that air−abrasive debridement followed by alkaline electrolyzed water (AEW) beneficial in restoring cytocompatibility of previously bacteria−contaminated smooth titanium surfaces. Since currently available implants are made of rough surfaces, it is also interesting to evaluate the potential effects of the proposed method on the rough surface. In addition, the present in vitro study assessed the effects of biological growth factors on the osteogenic cells when cultivated on the decontaminated titanium rough surfaces.
Contaminated titanium discs were mechanically cleaned using air−abrasive debridement with erythritol powder. The discs were then immersed either in 0.9% NaCl, 0.05% AEW, or 3% H2O2 for 1 minute. X−ray photoelectron spectroscopy (XPS) was used to evaluate the chemical surface properties of the treated titanium discs. In addition, osteoblast−like cells (MC3T3−E1 ) were cultured on the treated titanium discs in cell medium in adjunct to either enamel matrix derivative (EMD) or basic fibroblast growth factor (FGF−2) . The cytocompatibility was evaluated by counting the number of attached cells and measuring cell spread area. The bone differentiation was evaluated by ALP expression of the cells.
XPS analysis demonstrated that AEW group showed significantly lower organic contamination than the NaCl and H2O2 groups. The number of attached cells and their spread in AEW group were significantly greater compared to those in the other groups. ALP expression was also significantly enhanced in the AEW group compared with that in the NaCl group. No additional effects of EMD or FGF−2 in ALP expression were observed.
Air−abrasive debridement followed by AEW may be beneficial to restore cytocompatibility and enhance bone differentiation of previously bacterial contaminated rough titanium surfaces. Our findings suggest that neither FGF−2 nor EMD provide additional benefits in the differentiation of MC3T3−E1 cells.departmental bulletin pape