19 research outputs found

    Characteristics and distribution of stone monuments at the Higashi-Hiroshima Campus of Hiroshima University

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    本研究では,広島大学東広島キャンパスを対象として,悉皆調査によりすべての石碑の分布や属性,特徴を明らかにすることで,石碑が有する文化的・歴史的価値を議論する契機となることを目的とした。調査の結果,147基の石碑を確認し,その分布は教育学部と工学部でそれぞれ4割に達し,学部の偏りが顕著であること,建立年代に着目すると,東広島キャンパスの移転前の石碑は103基と全体の約7割で,多くが移転前に建立されたことなどが明らかとなった。広島大学は,医学系学部・研究科・施設をのぞくすべての学部などが東広島キャンパスに移転すると同時に石碑も集まることになった。移設により元々建立された地から離れたことで建立当初の意義を失った側面もあるが,多数の石碑が一つのキャンパスに移設されたことで散逸を防ぎ,前身校から新制広島大学,そして統合移転から現在までの歴史を繋ぐ貴重な資料となり得ることが示唆された

    Competency of Education for Interntional Understanding: By analyzing Dircke Geography: For Bilingual Classes in Germany

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    This paper aims to clarify the characteristics of learning units on Education for International Understanding (EIU) and their structure, appropriate geographical teaching materials on EIU, streategies for competence acquisition, and perspectives of ESD within learning units on EIU by analyzing two learning units “Globalisation” and “Global Disparities” in the geography textbook for bilingual lesson ”Diercke Geography: For Bilingual Classes”. The results of the analysis showed that 1)“Globalisation” focuses on the theories of globalisation and “Global Disparities” aims to learn not only theories but also regionl images; 2) Competency is repeatedly acquired through different learning activities ; 3) “Global Disparities” is designed from the viewpoint of “think globally, act locally”

    シシツ テイカ リョウホウ ニヨル ケイドウミャク プラーク アンテイカ ノ ヒョウカ : チョウオンパ integrated backscatter オ モチイタ カラー マッピング システム ノ カイハツ ト リンショウ オウヨウ

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    Background : The carotid plaque vulnerability is related to myocardial and cerebral infarction. We intended to develop an imaging system which enables to visualize tissue characteristics in the carotid plaques based on ultrasound integrated backscatter(IB). And to test its clinical efficacy, effect of the statin therapy on the plaques was evaluated with our software. Methods and Results : Carotid ultrasound examination was performed and ultrasonographic RAW data of the plaques were obtained from8patients undergoing carotid artery endarterectomy. Tissue characteristics in the plaques of resected examples were compared with preoperative ultrasonic images and the tissue IB values corresponding to the specimens were determined for developing our imaging system. Using this system, Color-coded maps of plaques in the three patients were constructed before and after lipid lowing therapy. We could demonstrate that lipid fraction in each plaque decreased and fibrous or calcification fraction increased in the follow-up study. Conclusions : Changes in histology of carotid plaques by statin could visualized with our imaging system. This technique may become a useful tool for the management of atherosclerosis

    Chiral Carboxylic Acid Enabled Achiral Rhodium(III)-Catalyzed Enantioselective C-H Functionalization

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    Reported is an achiral (CpRhIII)-Rh-x/chiral carboxylic acid catalyzed asymmetric C-H alkylation of diarylmethanamines with a diazomalonate, followed by cyclization and decarboxylation to afford 1,4-dihydroisoquinolin-3(2H)-one. Secondary alkylamines as well as nonprotected primary alkylamines underwent the transformation with high enantioselectivities (up to 98.5:1.5 e.r.) by using a newly developed chiral carboxylic acid as the sole source of chirality to achieve enantioselective C-H cleavage by a concerted metalation-deprotonation mechanism

    The effect of solvent molecules on crystallisation of heterotrinuclear MII–TbIII–MII complexes with tripodal nonadentate ligands

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    The crystal structures and crystallisation behaviours of MII–TbIII–MII heterotrinuclear complexes, [(L)MTbM(L)]NO3 (M = Mn and Zn; L3− stands for a conjugated base of H3L = 1,1,1-tris[(3-methoxysalicylideneamino)methyl]ethane), obtained from various organic solvents (MeOH, EtOH, CH2Cl2 and CHCl3) were investigated. The trinuclear complex cation has two asymmetric centres (Δ or Λ) at two MII sites as a result of the twisted tripodal arms of L3−. Single-crystal X-ray diffraction analysis revealed that all the analysed Zn–Tb–Zn complexes had homochiral structures (Δ,Δ- or Λ,Λ-enantiomers) in each single crystal; however, the type of crystallisation behaviour showed clear differences depending on the type of solvent molecule. Specifically, crystallisation from MeOH or CH2Cl2 resulted in the exclusive formation of the Λ-conglomerates with the Λ,Λ-enantiomers—a phenomenon we recently termed ‘absolute spontaneous resolution’. The analogous Mn–Tb–Mn complex crystallised from MeOH also resulted in the same phenomenon as that of Zn–Tb–Zn. In contrast, the meso-type (Δ,Λ) achiral isomer of the Mn–Tb–Mn complex was deposited for the first time in a series of MII–LnIII–MII trinuclear complexes from a CH2Cl2 or EtOH solution. Density functional theory calculations were performed to compare the thermodynamic stability of homochiral (Λ,Λ) and meso-type (Δ,Λ) complex cations of [(L)MnTbMn(L)]+ in MeOH and EtOH. Results were consistent with the molecular structures observed in the crystallographic analysis of the compounds deposited from these solvents

    Endoscopic clip-induced acute appendicitis in a patient on chronic hemodialysis: a case report with literature review

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    Abstract Background Foreign body-induced acute appendicitis is rare but could most often be caused by fish bones; those caused by endoscopic clips are highly rare. Herein, we report a case of acute appendicitis caused by endoscopic clips that developed 2 years after the endoscopic procedure. Case presentation A 68-year-old man with a 2-year history of hemodialysis (HD) for diabetic nephropathy visited our hospital with pain in the right lower quadrant. He had undergone endoscopic submucosal dissection (ESD) for gastric adenoma 2 years earlier. Abdominal computed tomography revealed acute gangrenous appendicitis and a high-density structure lodged in the appendix. This structure was determined to be an endoscopic clip that was lodged in the patient’s appendix for 2 years. The patient underwent an emergency laparoscopic appendectomy, and an endoscopic clip covered by a fecalith was found in the appendix. Conclusion Endoscopic clips usually fall off spontaneously in approximately a week and pass through stool. However, in this case, appendicitis developed 2 years after the ESD. An emergency surgical appendectomy may be recommended for appendicitis caused by foreign bodies. Prophylactic appendectomy or removal of foreign bodies should be considered for HD patients, even in the absence of symptoms owing to the potential severity of appendicitis in such patients

    A pilot study on the importance of forefoot bone length in male 400-m sprinters: is there a key morphological factor for superior long sprint performance?

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    Abstract Objective The main purpose of the present study was to determine the relationship between the forefoot bone length and long sprint performance in well-trained 400-m specialized sprinters. The total lengths of the forefoot bones of the big and second toes in 25 male 400-m sprinters and 25 male non-sprinters were measured using magnetic resonance imaging. The forefoot bones of each toe were totaled to assess overall forefoot bone length and then normalized to the maximum foot length. Results The relative total lengths of the forefoot bones in the big and second toes were significantly longer in 400-m sprinters than in non-sprinters (P < 0.05 for both). The relative total length of the forefoot bones of the second toe, but not of the big toe, in 400-m sprinters was significantly correlated with personal best 400-m sprint time (r = − 0.441, P = 0.028). These findings demonstrated that longer forefoot bones are related to higher long sprint performance in well-trained 400-m specialized sprinters. Therefore, the present study is the first to determine that morphological factors such as long forefoot bones may play an important role in achieving superior long sprinting performance

    Periodontal Regenerative Therapy Using rhFGF-2 and Deproteinized Bovine Bone Mineral versus rhFGF-2 Alone: 4-Year Extended Follow-Up of a Randomized Controlled Trial

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    The aim of this study was to evaluate longitudinal outcomes of recombinant human fibroblast growth factor (rhFGF)-2 plus deproteinized bovine bone mineral (DBBM) therapy in comparison with rhFGF-2 alone for treating periodontal intrabony defects. This study describes 4-year follow-up outcomes of the original randomized controlled trial. Intrabony defects in periodontitis patients were treated with rhFGF-2 (control) or rhFGF-2 plus DBBM (test). Clinical, radiographic, and patient-reported outcome (PRO) measures were used to evaluate the outcomes. Thirty-two sites were able to be followed up. At 4 years postoperatively, clinical attachment level (CAL) gains in the test and control groups were 3.5 &plusmn; 1.4 mm and 2.7 &plusmn; 1.4 mm, respectively, showing significant improvement from preoperative values but no difference between groups. Both groups showed an increase in radiographic bone fill (RBF) over time. At 4 years, the mean value for RBF in the test group (62%) was significantly greater than that in the control group (42%). In 1&ndash;2-wall defects, the test treatment yielded significantly greater RBF than the control treatment. No significant difference in PRO scores was noted between the groups. Although no significant difference in CAL gain was found between the groups at the 4-year follow-up, the combination treatment significantly enhanced RBF. Favorable clinical, radiographic outcomes, and PRO in both groups can be maintained for at least 4 years
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