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Color Visual Cryptography with Stacking Order Dependence Using Interference Color

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Open Journal of Applied Sciences 2017年第7期7卷 329-336页

作者： Toshiki Matsuzaki Huangyi Qin Kenji harada Department of Computer Science Kitami Institute of Technology Kitami Japan

Visual cryptography is an encryption method that shares a secret image through several encrypted images. General visual cryptography has no stacking order dependence, and only one image can be decoded regardless of stacking order of encrypted images. We previously reported a color visual cryptography using interference color (or polarization color) of retarder films. The interference color changes depending on the stacking order of retarder films. In this paper, we propose and develop a color visual cryptography that displays two images by changing stacking order of retarder films.

关键词： Visual Cryptography Polarizer Interference Color Birefringent Material

Long-term follow-up of ulcerative colitis patients treated on the basis of their cytomegalovirus antigen status

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World Journal of Gastroenterology 2014年第2期20卷 509-517页

作者： Toshihiro Inokuchi Jun Kato Sakiko Hiraoka Hideyuki Suzuki Asuka Nakarai Tomoko Hirakawa Mitsuhiro Akita Sakuma Takahashi Keita harada Hiroyuki Okada Kazuhide Yamamoto Department of Gastroenterology and Hepatology Okayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayama 700-8558Japan Second Department of Internal Medicine Wakayama Medical UniversityWakayama 641-0012Japan

AIM:To clarify the impact of cytomegalovirus(CMV)activation and antiviral therapy based on CMV antigen status on the long-term clinical course of ulcerative colitis(UC)***:UC patients with flare-up were divided into CMV-positive and-negative groups according to the CMV antigenemia *** main treatment strategy provided for the patients in the CMV-positive group comprised a dose reduction of corticosteroids and administration of ***:The median number of days to initial remission was significantly greater for the patients in the CMV-positive group(21 d vs 16 d,P=0.009).However,the relapse rate after remission and colectomy rate during more than 30 mo of observation did not differ between the two *** analysis revealed that administration of ganciclovir was the only independent factor for avoiding colectomy in patients of the CMV-positive ***:CMV antigen status did not significantly affect the long-term prognosis in UC patients under treatment with appropriate antiviral therapy.

关键词： Ulcerative colitis Cytomegalovirus Cytomegalovirus antigenemia assay

Electrohydraulic lithotripsy and rendezvous nasal endoscopic cholangiography for common bile duct stone: A case report

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World Journal of Clinical Cases 2019年第10期7卷 1149-1154页

作者： Koichi Kimura Kensuke Kudo Tomoharu Yoshizumi Takeshi Kurihara Shohei Yoshiya Yohei Mano Kazuki Takeishi Shinji Itoh Noboru harada Toru Ikegami Tetsuo Ikeda Department of Endoscopy and Endoscopic Surgery Fukuoka Dental CollegeFukuoka 814-0175Japan Department of Surgery and Science Graduate School of Medical SciencesKyushu UniversityFukuoka 812-8582Japan

BACKGROUND In patients with large stones in the common bile duct(CBD),advanced treatment modalities are generally ***,we present an interesting case of a huge CBD stone treated with electrohydraulic lithotripsy(EHL)by the percutaneous approach and rendezvous endoscopic retrograde cholangiography(ERC)using a nasal *** SUMMARY A 91-year-old woman underwent ERC for a symptomatic large CBD stone with a diameter of 50 *** was referred to our institution after the failure of lithotomy by ERC,and after undergoing percutaneous transhepatic biliary *** attempted to fragment the stone by transhepatic cholangioscopy using ***,the stones were too large and partly soft clay-like for ***,we attempted lithotomy with ERC and cholangioscopy by the rendezvous technique using a nasal endoscope and achieved complete *** complication was observed at the end of this *** Cholangioscopy by rendezvous technique using a nasal endoscope is a feasible and safe endoscopic method for removing huge CBD stones.

关键词： Common bile duct stone Electrohydraulic lithotripsy Rendezvous technique Endoscopic retrograde cholangiography Nasal endoscop Case report

Preoperative detection and localization of small bowel hemangioma: Two case reports

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World Journal of Gastroenterology 2017年第20期23卷 3752-3757页

作者： Nobuhisa Takase Keisuke Fukui Takafumi Tani Tohru Nishimura Tomohiro Tanaka Naoki harada Kimihiko Ueno Manabu Takamatsu Akihiko Nishizawa Akiharu Okamura Kunihiko Kaneda Department of Surgery Kakogawa Central City Hospital Department of Internal Medicine Kakogawa Central City Hospital Department of Diagnostic Pathology Kakogawa Central City Hospital

Among the various diagnostic modalities for small bowel hemangioma, video capsule endoscopy (VCE) and double-balloon enteroscopy (DBE) can be recommended as part of the work-up in patients with obscure gastrointestinal bleeding (OGIB). DBE is superior to VCE in the accuracy of diagnosis and therapeutic potential, while in most cases total enteroscopy cannot be achieved through only the antegrade or retrograde DBE procedures. As treatment for small bowel bleeding, especially spout bleeding, localization of the lesion for the decision of DBE insertion facilitates early treatment, such as endoscopic hemostatic clipping, allowing patients to avoid useless transfusion and the worsening of their disease into life-threatening status. Applying endoscopic India ink marking prior to laparoscopic surgical resection is a particularly useful technique for more minimally invasive treatment. We report two cases of small bowel hemangioma found in examinations for OGIB that were treated with combination of laparoscopic and endoscopic modalities.

关键词： Laparoscopic surgery India ink marking Small bowel hemangioma Obscure gastrointestinal bleeding Minimally invasive

A predictive factor for the response to S-1 plus cisplatin in gastric cancer

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World Journal of Gastroenterology 2010年第36期16卷 4575-4582页

作者： Ikuko Miyazaki Takashi Kawai Youji harada Fuminori Moriyasu Department of Gastroenterology and Hepatology Tokyo Medical University Hospital6-7-1 Nishi-ShinjukuShinjuku-kuTokyo 160-0023Japan Endoscope Center Tokyo Medical University Hospital6-7-1 Nishi-ShinjukuShinjuku-kuTokyo 160-0023Japan Department of Gastroenterology Toda Chuo General Hospital1-19-3 HonchoToda-shiSaitama 335-1132Japan

AIM:To prove that the protein expression level of thymidylate synthase is a predictive factor for the response to S-1/cisplatin(CDDP)chemotherapy in gastric ***:We measured the protein expression levels of thymidylate synthase(TS),dihydropyrimidine dehydrogenase(DPD),and orotate phosphoribosyltrans-ferase(OPRT)in advanced gastric *** S-1/CDDP chemotherapy,tumor specimens from primary sites were obtained by endoscopic biopsy and analyzed by enzyme-linked immunosorbent *** chemo-therapeutic effects on the primary sites were evaluated by endoscopic biopsy performed more than once after S-1/CDDP *** effects are a predictive factor for the response to S-1/CDDP chemotherapy inpatients with advanced gastric cancer,as evaluated by endoscopic biopsy over ***:The protein expression level of TS was significantly higher(P40 ng/mg ***:We have confirmed that the protein expression level of TS is a predictive factor for the response to S-1/CDDP chemotherapy in patients with advanced gastric cancer.

关键词： Gastric cancer Thymidylate synthase Dihy-dropyrimidine dehydrogenase Orotate phosphoribosyl-transferase Biopsy

Responses of Picoplankton to Nutrient Perturbation in the South China Sea, with Special Reference to the Coast-wards Distribution of Prochlorococcus

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Acta Botanica Sinica 2002年第6期44卷 731-739页

作者：焦念志杨燕辉 Hiroshi KOSHIKAWA Shigeki harada Masataka WATANABE 厦门大学海洋环境科学教育部重点实验室厦门361005 National Institute for Environmental Studies

Responses of Prochlorococcus (Pro), Synechococcus (Syn), pico-eukaryotes (Euk) and heterotrophic bacteria (Bact) in pelagic marine ecosystems to external nutrient perturbations were examined using nitrogen- (N), phosphorus- (P), iron- (Fe), and cobalt- (Co) enriched incubations in the South China Sea in November 1997. Variations in abundance of the 4 groups of microorganism and cellular pigment content of the autotrophs during incubation were followed by flow-cytometric measurements for seven days. During the incubation, Syn and Euk showed a relatively higher demand on Fe and N, while Pro required higher levels of Co and P. The Fe was inadequate for all the organisms in the deep euphotic zone (75 m) of the study area. The experimental results also implied that biological interaction among the organisms played a role in the community structure shift during the incubation. It seemed that besides the effects of temperature, there are some other physical and chemical limitations as well as impacts from biological interactions on Pro distribution in coast waters.

关键词： prochlorococcus picoplankton nutrients iron cobalt South China Sea

Comparison of antimony behavior with arsenic under various soil redox conditions

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Chinese Journal Of Geochemistry 2006年第B8期25卷 98-99页

作者： Satoshi Mitsunobu Teppei harada Yoshio Takahashi Department of Earth and Planetary Systems Science Graduate School of Science Hiroshima University Higashi-Hiroshima Hiroshima Japan

Diffusion-weighted imaging of the liver:Current applications

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World Journal of Radiology 2016年第11期8卷 857-867页

作者： Kazuhiro Saito Yu Tajima Taiyo L harada Department of Radiology Tokyo Medical University

Diffusion-weighted imaging(DWI) of the liver can be performed using most commercially available machines and is currently accepted in routine sequence. This sequence has some potential as an imaging biomarker for fibrosis, tumor detection/characterization, and following/predicting therapy. To improve reliability including accuracy and reproducibility, researchers have validated this new technique in terms of image acquisition, data sampling, and analysis. The added value of DWI in contrastenhanced magnetic resonance imaging was established in the detection of malignant liver lesions. However, some limitations remain in terms of lesion characterization and fibrosis detection. Furthermore, the methodologies of image acquisition and data analysis have been inconsistent. Therefore, researchers should make every effort to not only improve accuracy and reproducibility but also standardize imaging parameters.

关键词： Diffusion weighted imaging Liver Fibrosis Lesion characterization

Primary intraosseous squamous cell carcinoma of the mandible

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中国口腔颌面外科杂志 2008年第B5期6卷 62-63页

作者： Ken Omura Hiroyuki harada Hideaki Hirai Department of Oral and Maxillofacial Surgery (Hiroaki Shirmmwto Ken Omura Hiroyuki Harada Hideaki Hirai) TokyoMedical and Dental University Tokyo 1138549 Japan

Purpose: Intraosseous carcinoma was defined as a squamous cell carcinoma arising within the mandible without connection to the oral mucosa。We analyzed clinicopathological findings of intraosseous squamous cell carcinoma of mandible。Patients: There were 13 patients who visited our department from April 2001 to November 2007。They were all males who ranged in age from 34 to 75 years。Eight patients had no lymph node metastasis, and 5 patients had lymph node metastasis。Distant metastasis was not found in all patients。Results: The chief complaint was swelling of mandible in 8 patients, and incomplete healing of extraction socket in 5 patients。Surgery underwent in 5 patients, surgery with radiation therapy in 3 patients, and surgery with radiation and chemotherapy in 5 patients。As surgical treatment for the primary lesion, segmental mandibulectomy was performed in 8 patients and hemimandibulectomy in 5 patients。In 2 patients, excision of skin was carried out in combination with mandibulectomy。The surgical defect was reconstructed with scapular osteocutaneous flap in 7 patients, fibular osteocutaneous flap in one patient and rectus abdominis myocutaneous flap in 5 patients。Ten patients were alive with no evidence of disease, one patient were alive with the disease and two patients died of the disease。Histopathologically, the carcinoma involved the mandibular canal in l0 cases。The carcinoma invaded the muscles around the mandible in 7 cases。Cervical lymph node metastasis was confirmed in 5 of 7 cases in which the carcinoma invaded the muscles。Conclusions: These results suggest that invasion of intraosseous carcinoma to the muscles around mandible is a possible factor of the cervical lymph node metastasis。

关键词：磷片细胞癌治疗方法下颚骨手术治疗