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Tracing sediment transport history using mineralogical fingerprinting in a river basin with dams utilizing sediment sluicing

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International Journal of Sediment Research 2023年第3期38卷 469-480页

作者： Kenichi Ito Motohide Matsunaga Tomoya Itakiyo Hiroyuki Oishi Kei Nukazawa Mitsuteru Irie Yoshihiro suzuki Center for International Relations University of Miyazaki Department of Civil and Environmental Engineering Faculty of Engineering University of Miyazaki Oita Prefectural Government West Japan Engineering Consultants Inc.

Sediment causes a serious problem in relation to dam function. A cooperative sediment sluicing operation has been under way since 2017 to prevent sediment from accumulating in dams in the Mimi River,Miyazaki, Japan. To achieve a smooth and stable operation, it is very important to determine the sediment source and a sediment transport system to maintain the dam’s function. In the current study, the source and transport of sediment from the Mimi River basin have been analyzed with X-ray diffraction(XRD) to reveal the peaks of mineral species. The sediment samples were collected in the Mimi River basin from the Tsukabaru Dam to the sea in an area including 4 dams and 5 tributaries. In addition, the minerals in samples collected in 2014, before the start of the sediment sluicing operation, and from 2018 to 2020, after the start of the operation, were analyzed. An evaluation of the similarity of the sediment at each sampling point based on the X-ray diffraction peaks of mineral species showed that sediment distributed upstream was transported downstream in the year when the sediment sluicing was *** result indicates that the sediment sluicing operation at dams ensured the continuity of the sediment distribution in the Mimi River basin. In addition, an investigation done in 2020 showed that sediment particles very similar to those of the upstream tributaries were deposited downstream because of extensive flooding caused by a large typhoon. The management of sediment transport has the greatest importance in a river basin where a dam is to be constructed. It is possible to trace the history of the sediment distribution and movement resulting from the operation of sediment sluicing by using sediment mineral analysis.

关键词： Sediment sluicing Sediment source X-ray diffraction (XRD) Mineralogical analysis Cluster analysis

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Design Method of Guide Vane for Wells Turbine

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Journal of Thermal Science 2006年第2期15卷 126-131页

作者： Masami suzuki Department of Mechanical Engineering Graduate School of Engineering The University of Tokyo

指南翼在井汽轮机被安装以便改进它的效率，自我旋转的特征并且离开设计性能与拖延。这个工作试图根据动量理论解释这些指南翼的角色。在上游的翼在比下游的提高效率是更有效的，这被显示出。为指南翼的一个设计方法基于试验性的数据和... 详细信息

指南翼在井汽轮机被安装以便改进它的效率，自我旋转的特征并且离开设计性能与拖延。这个工作试图根据动量理论解释这些指南翼的角色。在上游的翼在比下游的提高效率是更有效的，这被显示出。为指南翼的一个设计方法基于试验性的数据和潜在的理论被建议。作者执行的试验性的研究证实理论求婚了。关键词井汽轮机 - 指南翼 - 串联 - 潜在的流动 - 波浪精力变换器 - 海洋工程 CLC 数字

关键词：韦尔斯涡轮叶片导向喷流位势流波能变流器海洋工程学

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Median neuropathy after multiple punctures of the forearm for catheterization:A case report

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世界临床病例杂志 2023年第25期11卷 5941-5946页

作者： Tomoaki suzuki Yuichiro Matsui Daisuke Momma Takeshi Endo Norimasa Iwasaki Department of Orthopaedic Surgery Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporo 060-8638Japan Section for Clinical Education Faculty of Dental MedicineHokkaido UniversitySapporo 060-8586Japan Center for Sports Medicine Hokkaido UniversitySapporo 060-8638Japan

BACKGROUND Neuropathy may occur at some sites after catheterization for close examination of cardiac *** the radial artery is considered a relatively uncomplicated site for catheterization,the radial artery and median nerve are in relatively close proximity,with the risk of median nerve injury depending on the angle of *** purpose of this study was to report the outcomes of surgery performed for conservative therapy-resistant median neuropathy following forearm *** SUMMARY A 50-year-old woman experienced palsy from the right thumb to the radial side of the ring finger after catheterization from the radial artery of the right *** developed at the same site and a positive tinel-like sign was seen for the median nerve area at the high level of the puncture *** conduction study showed reduced compound muscle action potentials and loss of sensory nerve action *** did not improve despite pharmacotherapy and the patient gradually developed flexion restrictions of the index and middle *** nerve injury and associated flexor tendon adhesion was diagnosed,and the patient was referred for surgery at 3 mo after *** the same area was opened,no injury to the median nerve epithelium was obvious,but the area of the positive tinel-like sign was highly adherent to surrounding tissue and to the flexor digitorum superficialis of the index and middle *** surgery was terminated with adequate adhesion *** was initiated postoperatively,improving neurological symptoms and range of motion of the *** months after surgery,the patient returned to daily activities without *** This case provides the appropriate diagnosis and treatment for a suspected peripheral nerve injury.

关键词： Catheterization Median neuropathy Surgical treatment Case report

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Biomechanical Stability of Open-Wedge High Tibial Osteotomy: Comparison of Two Locking Plates

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Open Journal of Orthopedics 2014年第10期4卷 257-262页

作者： kota Watanabe Tomoaki Kamiya Daisuke suzuki Hidenori Otsubo Atsushi Teramoto Tomoyuki suzuki Toshihiko Yamashita Department of Physical Therapy Sapporo Medical University School of Health Science Sapporo Japan Department of Orthopaedic Surgery Sapporo Medical University School of Medicine Sapporo Japan Department of Musculoskeletal Biomechanics and Surgical Development Sapporo Medical University Sapporo Japan

Introduction: Recently, new plates with locking screws have been developed and used for medial open-wedge high tibial osteotomy (HTO). The purpose of this study was to evaluate and compare biomechanical properties of different internal fixations in open-wedge HTO using the two currently available locking plates. Methods: Eight paired fresh-frozen cadaveric lower extremities were vertically embedded in steel boxes. The axial compression load was applied to the legs using the mechanical testing machine. The axial compression load test from 0 N to 550 N and the failure test were performed before and after HTO. One side of the leg of a specimen was fixed with the Puddu locking plate and the other side was fixed with the TomoFix plate to compare the two plates using the same specimen. A mode of failure and vertical displacement of the medial and lateral parts of the tibia at the osteotomy gap was recorded using a video camera in the failure test. The load–displacement data were analyzed to calculate stiffness, failure load, and displacement at failure. Results: The mean failure load was 1471.4 N and 1692.3 N and total vertical displacement at failure was 3.1 mm and 2.9 mm with the Puddu and TomoFix plates, respectively. During axial compression loading, displacements mainly occurred at the lateral osteotomy gap, while the medial gap was well preserved. No significant differences were observed in the failure load, displacement, or mode of failure between the two plates. Conclusions: The Puddu and TomoFix plates had similar biomechanical properties in open-wedge HTO. The results indicated reliable stability after open-wedge HTO without fibular osteotomy.

关键词： High Tibial Osteotomy Puddu Plate TomoFix Cadaver Biomechanics

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Comment on: Long-term hemodialysis improved and stabilized diabetic macular edema: two case reports

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International Journal of Ophthalmology(English edition) 2022年第11期15卷 1891-1892页

作者： Yusuke Kameda Yuta suzuki Megumi Sugai Karin Ishinabe Nichika Fukuoka Yotsuya-sanchome Ekimae Eye Clinic Tokyo 160-0004Japan

Dear Editor,With great excitement, we read the article titled “Longterm hemodialysis improved and stabilized diabetic macular edema: two case reports” by Fan and Yuan[1];a case series study which provided interestin... 详细信息

关键词： edema hemodialysis diabetic

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Pregnancy and medications for inflammatory bowel disease:An updated narrative review

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World Journal of Clinical Cases 2023年第8期11卷 1730-1740页

作者： Shintaro Akiyama Joshua M Steinberg Mariko Kobayashi Hideo suzuki Kiichiro Tsuchiya Department of Gastroenterology Faculty of MedicineUniversity of TsukubaTsukuba 305-8575IbarakiJapan Department of Inflammatory Bowel Disease Gastroenterology of the RockiesDenverCO 80027United States

Inflammatory bowel disease(IBD)is often diagnosed during the peak reprodu-ctive years of young *** with active IBD around conception are at a significantly increased risk of disease relapse during pregnancy,which is associated with poor pregnancy and neonatal *** these substantial risks,it is prudent that disease remission should ideally be achieved before ***,some patients may experience a disease flare-up even if they are in a state of remission before *** must continue their IBD medications to reduce the risk of disease flare and subsequent poor outcomes during the gestational and postpartum *** treating IBD flare-ups during pregnancy,the management is quite similar to the therapeutic approach for non-pregnant patients with IBD,including 5-aminosalicylate,steroids,calcineurin inhibitors(CNIs),and biologic *** the data regarding the safety of CNIs in pregnant women with IBD is limited,the findings in our recent meta-analysis suggest that CNIs may be safer to use in those with IBD than in solid organ transplant *** are several types of biologics and small-molecule therapies currently approved for IBD,and physicians should thoroughly understand their clinical benefits and safety profiles when utilizing these treatments in the context of *** review highlights recent studies,including our systematic review and meta-analysis,and discusses the clinical advantages and safety considerations of biologics and small molecules for pregnant women with IBD.

关键词： Inflammatory bowel disease Pregnancy Safety Biologics Small molecules

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Association of antithrombotic therapy with postoperative rebleeding in patients with cerebral amyloid angiopathy

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Chinese Neurosurgical Journal 2023年第3期9卷 159-165页

作者： Taro Yanagawa Hiroki Sato Kaima suzuki Hidetoshi Ooigawa Masaki Takao Hiroki Kurita Department of Cerebrovascular Surgery International Medical CenterSaitama Medical University1397-1 YamaneHidaka CitySaitama 350-1298Japan Stroke Center Sagamihara Kyodo Hospital4-3-1 HashimotodaiMidori-KuSagamihara CityKanagawa-Pref 252-5188Japan Department of Clinical Laboratory National Center of Neurology and PsychiatryNational Center Hospital4-1-1Ogawa-HigashiKodairaTokyo 187-8502Japan

Background Cerebral amyloid angiopathy is a common cause of subcortical hemorrhage in older *** open hematoma removal may be performed for severe subcortical hemorrhage,its safety in patients with cerebral amyloid angiopathy has not been established,and postoperative rebleeding may ***,this study aimed to investigate factors associated with postoperative *** Out of 145 consecutive patients who had undergone craniotomy for surgical removal of subcortical intracerebral hemorrhage between April 2010 and August 2019 at a single institution in Japan,we examined 109 patients with subcortical hemorrhage who met the inclusion *** excluding 30 patients whose tissue samples were unsuitable for the study,the final study cohort comprised 79 *** Of the 79 patients,50(63%)were diagnosed with cerebral amyloid angiopathy(cerebral amyloid angiopathy group)and 29(37%)were not diagnosed with noncerebral amyloid angiopathy(noncerebral amyloid angiopathy group).Postoperative rebleeding occurred in 12 patients(24%)in the cerebral amyloid angiopathy group and in 2 patients(7%)in the noncerebral amyloid angiopathy *** prothrombin time-international normalized ratio and intraoperative bleeding volume were significantly associated with postoperative rebleeding in the cerebral amyloid angiopathy group(odds ratio=42.4,95%confidence interval=1.14-1578;p=0.042 and odds ratio=1.005,95%confidence interval=1.001-1.008;p=0.007,respectively).Conclusions Patients with cerebral amyloid angiopathy-related cerebral hemorrhage who are receiving antithrombotic therapy,particularly warfarin therapy,are at a high risk of postoperative *** registration Registry and Registration Number of the study:19-220,2019/12/23,retrospectively registered.

关键词： Amyloid-β Antithrombotic therapy Cerebral amyloid angiopathy Postoperative rebleeding Subcortical hemorrhage

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Hydrogen gas and preservation of intestinal stem cells in mesenteric ischemia and reperfusion

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World Journal of Gastrointestinal Surgery 2022年第12期14卷 1329-1339页

作者： Ryo Yamamoto Sayuri suzuki Koichiro Homma Shintaro Yamaguchi Tomohisa Sujino Junichi Sasaki Department of Emergency and Critical Care Medicine Keio University School of MedicineTokyo 1608582Japan Division of Endocrinology Metabolism and NephrologyDepartment of Internal MedicineKeio University School of MedicineTokyo 1608582Japan Division of Gastroenterology and Hepatology Department of Internal MedicineKeio University School of MedicineTokyo 1608582Japan

BACKGROUND Patients with mesenteric ischemia frequently suffer from bowel necrosis even after *** gas has showed promising effects for ischemiareperfusion injury by reducing reactive oxygen species in various animal and clinical *** examined intestinal tissue injury by ischemia and reperfusion under continuous initiation of 3%hydrogen *** To clarify the treatment effects and target cells of hydrogen gas for mesenteric *** Three rat groups underwent 60-min mesenteric artery occlusion(ischemia),60-min reperfusion following 60-min occlusion(reperfusion),or ischemiareperfusion with the same duration under continuous 3%hydrogen gas inhalation(hydrogen).The distal ileum was *** staining with caspase-3 and leucine-rich repeat-containing G-protein-coupled 5(LGR5),a specific marker of intestinal stem cell,was conducted to evaluate the injury location and cell types protected by *** expressions of LGR5,olfactomedin 4(OLFM4),hairy and enhancer of split 1,Jagged 2,and Neurogenic locus notch homolog protein 1 were measured by quantitative polymerase chain *** oxidative stress was analyzed with immunostaining for 8-hydroxy-2'-deoxyguanosine(8-OHdG).Systemic oxidative stress was evaluated by plasma *** Ischemia damaged the epithelial layer at the tip of the villi,whereas reperfusion induced extensive apoptosis of the cells at the crypt base,which were identified as intestinal stem cells with double immunofluorescence *** mitigated such apoptosis at the crypt base,and the LGR5 expression of the tissues was higher in the hydrogen group than in the reperfusion ***4 was also relatively higher in the hydrogen group,whereas other measured RNAs were comparable between the groups.8-OHdG concentration was high in the reperfusion group,which was reduced by hydrogen,particularly at the crypt *** 8-OHdG concentrations were relatively higher in both reperfusion and

关键词： Hydrogen molecule Intestinal ischemia Ischemia-reperfusion injury Tissue protection Nonoperative management Leucine-rich repeat-containing G-protein-coupled 5

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Sodium-glucose co-transporter-2 inhibitor-associated euglycemic diabetic ketoacidosis that prompted the diagnosis of fulminant type-1 diabetes:A case report

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World Journal of Clinical Cases 2021年第13期9卷 3163-3169页

作者： Taro Yasuma Yuko Okano Soichiro Tanaka kota Nishihama Kazuhito Eguchi Chisa Inoue Kanako Maki Akihiro Uchida Mei Uemura Toshinari suzuki Corina N D'Alessandro-Gabazza Esteban C Gabazza Yutaka Yano Department of Diabetes Metabolismand Endocrinology and ImmunologyMie UniversityTsu 514-8507Japan Department of Diabetes Metabolismand EndocrinologyMie UniversityTsu 514-8507Japan Department of Immunology Mie University School of MedicineMie UniversityTsu 514-8507Japan Department of Immunology Mie University Faculty and Graduate School of MedicineTsu 514-8507Japan Department of Diabetes Mie University Graduate School of MedicineTsu 514-8507Japan

Fulminant type 1 diabetes mellitus(FT1DM)is a subtype of type 1 diabetes mellitus characterized by an abrupt onset and a rapid and complete functional loss of isletβ*** is a very rare disease generally associated with ketoacidosis and the absence of circulating pancreatic islet-related *** ketoacidosis with normal blood glucose levels has been reported during sodiumglucose co-transporter 2(SGLT2)inhibitor *** SUMMARY The patient was a 43-year-old woman that consulted a medical practitioner for malaise,thirst,and *** analysis showed high blood glucose levels(428 mg/dL),a mild increase of hemoglobin A1c(6.6%),and increased ketone bodies in *** patient was diagnosed with type 2 diabetes *** patient was initially treated with insulin,which was subsequently changed to an oral SGLT2 *** to glutamic acid decarboxylase were *** days after receiving oral SGLT2 inhibitor,she consulted at Mie University Hospital,complaining of fatigue and *** analysis revealed diabetic ketoacidosis with almost normal blood glucose *** endogenous insulin secretion was markedly low,and the serum levels of islet-related autoantibodies were *** made the diagnosis of FT1DM with concurrent SGLT2 inhibitor-associated euglycemic diabetic *** patient's general condition improved after therapy with intravenous insulin and withdrawal of oral *** was discharged on day 14 with an indication of multiple daily insulin *** This patient is a rare case of FT1DM that developed SGLT2 inhibitor-associated diabetic ketoacidosis with almost normal blood glucose *** case report underscores the importance of considering the diagnosis of FT1DM in patients with negative circulating autoantibodies and a history of hyperglycemia that subsequently develop euglycemic diabetic ketoacidosis following treatment with a SGLT2 inhibitor.

关键词： Euglycemic diabetic ketoacidosis Sodium-glucose cotransporter 2 inhibitors Fulminant type 1 diabetes Case report

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The ion balance of Shotokuseki extract promotes filaggrin fragmentation and increases amino acid production and pyrrolidone carboxylic acid content in three-dimensional cultured human epidermis

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Natural Products and Bioprospecting 2022年第1期12卷 586-594页

作者： Kei Tsukui Takuya Kakiuchi Masamitsu suzuki Hidetomo Sakurai Yoshihiro Tokudome Laboratory of Cosmetic Sciences Graduate School of Advanced Health SciencesSaga University1 HonjoSaga 840-8502Japan Laboratory of Dermatological Physiology Faculty of Pharmacy and Pharmaceutical SciencesJosai University1-1 KeyakidaiSakadoSaitama 350-0295Japan Zeria Pharmaceutical Co. Ltd.10-11 NihonbashiKobuna-choChuo-kuTokyo 103-8351Japan Laboratory of Cosmetic Sciences Regional Innovation CenterSaga University1 HonjoSaga 840-8502Japan

Natural moisturizing factor(NMF)in the stratum corneum contributes to the retention of moisture *** purpose of this study was to determine the penetration of ions in Shotokuseki extract(SE)into the three-dimensional cultured epidermis and the effect of NMF on the biosynthesis of amino acids and pyrrolidone carboxylic acid ***-ous ions,amino acids and pyrrolidone carboxylic acid were quantified by inductively coupled plasma mass spectrom-etry,fully automatic amino acid analyzer or high-performance liquid chromatography(HPLC)in three-dimensional cultured epidermis after application of *** expression levels of profilaggrin,calpain1,caspase14,and bleomycin hydrolase,which are involved in NMF production,were determined by reverse-transcription qPCR and bleomycin hydrolase activity was determined by aminopeptidase *** application of SE increased Na,K,Mg,Ca,Al,and Fe levels in three-dimensional cultured *** mRNA levels of the starting material of amino acid synthesis profilaggrin,and calpain1 and bleomycin hydrolase,which are involved in its fragmentation,*** activity of bleomycin hydrolase also ***,the levels of amino acids and pyrrolidone carboxylic acid increased in the three-dimensional cultured *** suggests that the ionic composition of SE may be involved in its moisturizing effect on the stratum corneum.

关键词： Shotokuseki extract Epidermis Amino acid Pyrrolidone carboxylic acid Ion Gene expression

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