494 research outputs found

    Effect of microstructure on the Friction Properties of the Electroless Ni-P Deposits

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    Study of nano precipitation in aluminum alloys

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    Effect of Ag addition on the crystal structure of the β\u27-phase in Al-Mg-Si alloys

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    Image Reconstruction Functions and Metal Pin Artifact Reducer in CT-Scanner

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    It is well known that metallic materials in patients cause severe artifacts on CT scans, which can considerably impair the information contained in the image. As the CT scanner prepares the user\u27s program, we used the soft Metal Pin Artifacts Reducer (MPAR) program, and attempted to apply the CT to the removal of artifacts which were brought about due to the use of dental materials or metals. Preceding the use of this program, image reconstruction functions (FC) of the CT scanner vary from FC1 to FC7, so we investigated the relation between each function from FC1 to FC5 and resultant images. CT images for FC1, FC2 and FC4 were considerably softer images, and artifacts originated in heavy metals were more intense at FC1 and FC2. However, among those tested, FC1 was harder and FC4 was softer than FC2. Images for FC3 and FC5, on the other hand, were vary hard. Results obtained by measuring CT values of dental materials indicated that the rates of function for FC1 to FC5 were approximately constituted by 1.0:0.9:0.3:0.8:0.3. Therefore, it seems that the softening of image from FC1 to FC2, and as far as FC4, is due to a lower rate of function; allowing for the production of a lower image contrast by decreasing the differences of CT value between an object and neighbors. FC3 and FC5 image hardness, on the other hand, was due to condensing CT values to 1/3 of FC1. Consequently, the images of FC3 and FC5 could not be clearly discerned and appeared rather flat and sharp. Finally, we examined the removal of artifacts by using MPAR soft. In most cases, artifacts were not successfully removed during the first procedure; barely visible white remnants were left in place of the artifacts. Regardless of whether remnants could be seen or not, a broad banded image always appeared in their place. Therefore, from these results, we currently feel that instead of immediately utilizing MPAR soft to reduce artifacts, it is better to select desirable window levels and widths which cannot be disturbed by artifacts, and can be made to fit to the diagnostic purpose. In order to more clearly understand the results of the removal of artifacts in the dental region, we feel that more time will be needed. It is our hope that serious consideration continues to be given to the development of soft programs

    コウチュウキュウ ニ オケル プレセプシン ノ サンセイ メカニズム ニ カンスル ケントウ

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    プレセプシンは敗血症マーカーの一つで、単球において貪食により産生されることが知られているが、単球以外からの産生の報告はない。本研究では好中球からのプレセプシン産生の可能性、及びその産生機所を探索するため、好中球を用いたプレセプシン産生実験及び、貪食、プロテアーゼ阻害実験を行った。好中球を大腸菌で刺激することによりプレセプシン産生が認められた。次にアクチン重合阻害薬による貪食阻害を行ったが、プレセプシン濃度の有意な減少は認められなかった。また、セリンプロテアーゼ阻害薬添加によりプレセプシン濃度は有意に減少したが、一方で好中球エラスターゼ阻害剤の添加ではプレセプシン産生に有意な減少は認められなかった。以上からプレセプシンは単球と同様に好中球からも産生されるが、その産生経路は貪食以外のものであることが示唆された。さらに、エラスターゼ以外のセリンプロテアーゼも産生に関与する可能性が推測された。Presepsin, which is produced in monocytes via its phagocytosis, is one of the biomarker proteins for sepsis, but it is unknown whether other cells secrete presepsin besides monocytes. To clarify the mechanism of presepsin production, we studied presepsin production from neutrophils and effects of inhibitors of phagocytosis and serine protease. We confirmed that prsepsin levels increased significantly when neutrophils were stimulated by Escherichia coli (E. coli). In phagocytosis blocking assay, no presepsin changes were observed nevertheless phagocytosis were weakened in the cells treated cytochalasin D for blocking actin polymerization. In addition, presepsin production of the cells treated with serine protease inhibitor were significantly decreased, on the other hand in cells treated neutrophil elastase inhibitor, presepsin production were a little suppressed. These results indicate that neutrophils as well as monocytes produce presepsin but different pathways from the phagocytosis, and furthermore serine proteases other than elastase may be involved in presepsin production

    Diagnostic Pathology

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    トラベルビー ニ オケル キョウドウ ドウカン ラポート ノ サイ ケントウ ロゴセラピーテキ カンテン カラ

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    Joyce Travelbee の理論はVictor E.Frankl のロゴセラピーから影響を受けていることはよく知られている。しかしながら、彼女の理論にはFranklからの直接的引用が少ないのも事実である。拙稿においては、特にTravelbeeの「共感」と「同感」について、ロゴセラピー的観点から再考したい。It is well known that Joyce Travelbee\u27s theory of nursing is influenced by Victor E. Frankl\u27s Logotherapy. However, in fact, her theory has few direct quotations from Frankl\u27s. In this article, I try to reexamine her concepts, particularly"empathy"and"sympathy", from a viewpoint of Logotherapy

    シンガタ インフルエンザ ニ タイスル コウベトキワダイガク ノ トリクミ

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    Novel influenza A (H1N1) outbreak in Mexico was reported on April 25, 2009, and soon spread worldwide. In Japan, the first case of domestic infection was reported from Kobe City on May 16. The health control committee of Kobe Tokiwa University took several actions to prevent infection outbreak. The University was closed from May 18 to May 23. During this period, protective equipments such as gargles, alcoholic hand wash sprays and face masks were installed, and health conditions of all students were individually surveyed by faculty staffs. All the students were requested to check body temperature before going to school, and if febrile, report to the health control committee. The first case of influenza A infection in Kobe Tokiwa University was reported on August 31. The number of infection cases gradually increased and amounted, in total, from August 31 to December 12, to 104. As seasonal influenza infection may overlap the novel influenza A (H1N1) in winter, a further increase could be expected. Further preventive measure seems to be necessary

    高等学校間連携による探究型授業実践の成果と意義 : 岡山県津山市内県立高等学校四校連携講座「地域創生学」の報告を通じて

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    岡山県津山市内の公立高等学校4校(津山高等学校、津山東高等学校、津山商業高等学校、津山工業高等学校)は、2017年度から学校設定教科・科目である四校連携講座「地域創生学」を合同で実施している。地域をフィールドとして行われる高等学校間連携による探究型学習は全国的にも特徴的であり、2019年度には「第9回経済産業省・文部科学省共催キャリア教育推進連携表彰」において奨励賞を受賞している。本研究ではその実施における経緯・内容・結果について報告すると共に、その意義について考察を行った。特に、高等学校間連携として異なる高等学校の生徒と協働することは、生徒の社会的自己の成長に大きく寄与することがわかる。また、地域をフィールドとして行われる探究型学習に関して、その特徴を抽出すると共に、活動を継続させる為の今後の留意点等について考察した
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