Yoshinori Hamada

ORCID: 0000-0003-2214-7399
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About
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Research Areas
  • Pediatric Hepatobiliary Diseases and Treatments
  • Gallbladder and Bile Duct Disorders
  • Magnetic confinement fusion research
  • Gastrointestinal disorders and treatments
  • Intestinal Malrotation and Obstruction Disorders
  • Congenital Anomalies and Fetal Surgery
  • Congenital gastrointestinal and neural anomalies
  • Plasma Diagnostics and Applications
  • Ionosphere and magnetosphere dynamics
  • Particle accelerators and beam dynamics
  • Superconducting Materials and Applications
  • Clinical Nutrition and Gastroenterology
  • Congenital Diaphragmatic Hernia Studies
  • Pancreatitis Pathology and Treatment
  • Biliary and Gastrointestinal Fistulas
  • Esophageal and GI Pathology
  • Solar and Space Plasma Dynamics
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Pancreatic function and diabetes
  • Urological Disorders and Treatments
  • Helicobacter pylori-related gastroenterology studies
  • Soft tissue tumor case studies
  • Gastrointestinal motility and disorders
  • Gastrointestinal Tumor Research and Treatment
  • Fusion materials and technologies

Kansai Medical University
2013-2025

Tsurumi University
2022

Ministry of Health Labour and Welfare
2018

Pediatric Oncology Group
2012

National Institute for Fusion Science
1999-2010

Kobe University
2009

University of Yamanashi
1992-2008

Nagoya University
2004

National Institutes of Natural Sciences
2003

Kagawa National Children's Hospital
2001-2003

The Large Helical Device (LHD) has successfully started running plasma confinement experiments after a long construction period of eight years. During the and machine commissioning phases, variety milestones were attained in fusion engineering which led to first operation, was ignited on 31 March 1998. Two experimental campaigns carried out In campaign, magnetic flux mapping clearly demonstrated nested structure surfaces. conducted with second harmonic 84 82.6 GHz ECH at heating power input...

10.1088/0029-5515/39/9y/313 article EN Nuclear Fusion 1999-09-01

he origins of nerves containing calcitonin gene-related peptide (CGRP), neuropeptide Y (NPY), and substance P were investigated in the rat stomach, pancreas, colon, using immunocytochemistry combined with retrograde tracing surgical chemical denervation procedures. Compared vasoactive intestinal polypeptide (VIP) galanin, which have primarily local mammalian gut, CGRP-, NPY-, P-immunoreactive revealed dual extrinsic intrinsic origins. Immunocytochemistry showed that CGRP- stomach pancreas...

10.1523/jneurosci.07-09-02674.1987 article EN cc-by-nc-sa Journal of Neuroscience 1987-09-01

Using peroxidase-antiperoxidase (PAP) method, carcinoembryonic antigen (CEA) was demonstrated in conventionally processed colorectal cancer tissues.A new immunohistochemical grading for cancers based on the mode of localization made an attempt to clarify factors responsible elevation plasma CEA levels patients.Most patients with well differentiated adenocarcinoma, which densely distributed along apical surface but only rarely present basolateral surfaces carcinoma cells, had very low CEA,...

10.1002/1097-0142(19850101)55:1<136::aid-cncr2820550121>3.0.co;2-p article EN Cancer 1985-01-01

Abstract Pancreaticobiliary maljunction is a congenital malformation in which the pancreatic and bile ducts join anatomically outside duodenal wall. The diagnostic criteria for pancreaticobiliary were proposed 1987. committee of J apanese S tudy G roup on P ancreaticobiliary M aljunction ( JSGPM ) began to revise from 2011 taking recently advanced imaging techniques into consideration, final revised version was approved 36 th A nnual eeting JSPBM . For diagnosis maljunction, an abnormally...

10.1002/jhbp.57 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2013-12-05

The Diagnostic Criteria for Pancreaticobiliary Maljunction 2013 were published by the Japanese Study Group on (JSGPM) in 2014. committee of JSGPM diagnostic criteria pancreaticobiliary maljunction has established standard diameter bile duct, and a definition dilatation duct was proposed 2014.The prepared congenital biliary 2014, final revised version approved 2015.Congenital is defined as malformation involving both local extrahepatic including common maljunction. However, cases associated...

10.1002/jhbp.346 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2016-03-21

Abstract Background In 2015, the Committee on Diagnostic Criteria of Japanese Study Group Pancreaticobiliary Maljunction ( PBM ) proposed a classification into four types: (A) stenotic type, (B) non‐stenotic (C) dilated channel and (D) complex type. To validate this clarify clinical features types , retrospective multicenter study was conducted. Methods The group 317 children with divided . Clinical features, preoperative complications, operations, postoperative pancreatic complications were...

10.1002/jhbp.485 article EN Journal of Hepato-Biliary-Pancreatic Sciences 2017-06-22

Wave trajectories propagating obliquely to the magnetic field in toroidal plasmas are studied theoretically. Results show that ordinary wave at appropriate incident angle is mode converted extraordinary first turning point and further electron Bernstein while passing a loop or folded curve near second cyclotron-damped away, resulting local heating, before arriving cyclotron resonance layer.

10.1103/physrevlett.40.1379 article EN Physical Review Letters 1978-05-22

Using chromogranin (CG) immunohistochemical staining, the prognostic significance of endocrine differentiation was investigated in 212 patients with primary colorectal adenocarcinoma (including 6 mucosal carcinoma). CG-immunoreactive cells were found to be an integral component tumor 67 206 (32.5%, excluding The intracellular localization CG cancer tissue completely different from that normal large bowel. In addition, morphologic changes such as nuclear hyperchromasia and pleomorphism also...

10.1002/1097-0142(19920601)69:11<2641::aid-cncr2820691104>3.0.co;2-l article EN Cancer 1992-06-01

Characteristics of MHD instabilities and their impacts on plasma confinement are studied in current free plasmas the Large Helical Device. Spontaneous L–H transition is often observed high beta close to 2% at low toroidal fields (Bt ⩽ 0.75 T). The stored energy starts rise rapidly just after accompanying clear electron density but quickly saturates due growth m = 2/n 3 mode (m n: poloidal numbers), rational surface which located edge barrier region, localized (ELM) like activities having...

10.1088/0029-5515/44/2/001 article EN Nuclear Fusion 2004-01-12

Abstract Background Despite the presence of ganglion cells in rectum, some patients have symptoms similar to those Hirschsprung's disease. A consensus has yet be established regarding terminology for these diseases. We defined this group diseases as “allied disorders disease” and compiled guidelines facilitate accurate clinician diagnosis provide appropriate treatment strategies each Methods These were developed using methodologies Medical Information Network Distribution System ( MINDS )....

10.1111/ped.13559 article EN Pediatrics International 2018-05-01

An internal transport barrier (ITB) was observed in the electron temperature profile Large Helical Device [O. Motojima et al., Phys. Plasmas 6, 1843 (1999)] with a centrally focused intense cyclotron resonance microwave heating. Inside ITB core improved, and high temperature, exceeding 10 keV low density, achieved collisionless regime. The formation of electron-ITB is correlated neoclassical root strong radial electric field determined by ambipolar flux. direction tangentially injected...

10.1063/1.1560613 article EN Physics of Plasmas 2003-04-25

Both glucagon and glucagon-like peptide-1 (GLP-1) play an important role in the regulation of nutrient homeostasis. In this study, tissue distributions expression receptor genes for GLP-1 were examined. Expression gene was detected liver, kidney, ileum pancreatic islets but not brain. contrast, brain, pancreas or ileum. To investigate existence characteristics receptors on β cells, translational by glucose analyzed a mouse cell line, MIN6 cells. cDNA pool both identified showed higher level...

10.1055/s-2007-978985 article EN Hormone and Metabolic Research 1997-02-01

We measured the cord serum levels of thyroid‐stimulating hormone (TSH), thyroxine (T4) and triiodothyronine (T3) in 922 neonates delivered by mothers who had no thyroid disorders. The T4 T3 increased progressively from 27th to 40th week gestation. However, TSH varied widely correlation with gestational age, because they were affected mode delivery. mean level vacuum extraction was 16.3 ±10.0 µUml (n = 30), which significantly higher than following normal vaginal delivery (9.5 ± 6.0 µ U/ml, n...

10.1111/j.1442-200x.1991.tb01567.x article EN Pediatrics International 1991-06-01
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