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Multi-modal Gesture Recognition using Integrated Model of Motion, Audio and Video

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Chinese Journal of Mechanical Engineering 2015年第4期28卷 657-665页

作者： GOUTSU yusuke KOBAYASHI Takaki OBARA Junya KUSAJIMA Ikuo TAKEICHI Kazunari TAKANO Wataru nakamura Yoshihiko Department of Mechano-Informatics School of Information Science and TechnologyUniversity of Tokyo7-3-1 HongoBunkyo-kuTokyoJapan

Gesture recognition is used in many practical applications such as human-robot interaction, medical rehabilitation and sign language. With increasing motion sensor development, multiple data sources have become available, which leads to the rise of multi-modal gesture recognition. Since our previous approach to gesture recognition depends on a unimodal system, it is difficult to classify similar motion patterns. In order to solve this problem, a novel approach which integrates motion, audio and video models is proposed by using dataset captured by Kinect. The proposed system can recognize observed gestures by using three models. Recognition results of three models are integrated by using the proposed framework and the output becomes the final result. The motion and audio models are learned by using Hidden Markov Model. Random Forest which is the video classifier is used to learn the video model. In the experiments to test the performances of the proposed system, the motion and audio models most suitable for gesture recognition are chosen by varying feature vectors and learning methods. Additionally, the unimodal and multi-modal models are compared with respect to recognition accuracy. All the experiments are conducted on dataset provided by the competition organizer of MMGRC, which is a workshop for Multi-Modal Gesture Recognition Challenge. The comparison results show that the multi-modal model composed of three models scores the highest recognition rate. This improvement of recognition accuracy means that the complementary relationship among three models improves the accuracy of gesture recognition. The proposed system provides the application technology to understand human actions of daily life more precisely.

关键词： gesture recognition multi-modal integration hidden Markov model random forests

Surface treatment of titanium dioxide nanopowder using rotary electrode dielectric barrier discharge reactor

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Plasma Science and Technology 2021年第10期23卷 197-203页

作者： Naw Rutha PAW Takuma KIMURA Tatsuo ISHIJIMA Yasunori TANAKA yusuke NAKANO Yoshihiko UESUGI Shiori SUEYASU Shu WATANABE Keitaro nakamura Faculty of Electrical Engineering and Computer Science Kanazawa UniversityKanazawa 920-1192Japan Research Center for Production&Technology Nisshin Seifun Group Inc.Fujimino 356-8511Japan

Titanium dioxide(Ti O_(2))nanopowder(P-25;Degussa AG)was treated using dielectric barrier discharge(DBD)in a rotary electrode DBD(RE-DBD)*** electrical and optical characteristics were investigated during RE-DBD *** treated TiO_(2)nanopowder properties and structures were analyzed using x-ray diffraction(XRD)and Fourier-transform infrared spectroscopy(FTIR).After RE-DBD treatment,XRD measurements indicated that the anatase peak theta positions shifted from 25.3°to 25.1°,which can be attributed to the substitution of new functional groups in the TiO_(2)*** FTIR results show that hydroxyl groups(OH)at 3400 cm-1 increased *** mechanism used to modify the TiO_(2)nanopowder surface by air DBD treatment was confirmed from optical emission spectrum *** species,such as OH radical,ozone and atomic oxygen can play key roles in hydroxyl formation on the TiO_(2)nanopowder surface.

关键词： dielectric barrier discharge nanopowder reactive species rotary electrodes surface treatment titanium dioxide

Retroperitoneal fibrosis associated with immunoglobulin G4-related disease

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World Journal of Gastroenterology 2013年第1期19卷 35-41页

作者： Nao Fujimori Tetsuhide Ito Hisato Igarashi Takamasa Oono Taichi nakamura yusuke Niina Masayuki Hijioka Lingaku Lee Masahiko Uchida Ryoichi Takayanagi Department of Medicine and Bioregulatory Science Graduate School of Medical SciencesKyushu UniversityFukuoka 812-8582Japan

Retroperitoneal fibrosis is a rare disease characterized by the development of inflammation and fibrosis in the soft tissues of the retroperitoneum and other abdominal *** fibrosis can be of 2 types:idiopathic and *** recently advocated concept and diagnostic criteria of immunoglobulin G4(IgG4)-related disease,derived from research on autoimmune pancreatitis(AIP),has led to widespread recognition of retroperitoneal fibrosis as a condition caused by IgG4-related *** now know that previously diagnosed idiopathic retroperitoneal fibrosis includes IgG4-related disease;however,the actual prevalence is ***,some reports on AIP suggest that retroperitoneal fibrosis is concurrently found in about 10% of IgG4-related *** retroperitoneal fibrosis has no specific symptoms,diagnosis is primarily based on diagnostic imaging(computed tomography and magnetic resonance imaging),which is also useful in evaluating the effect of *** retroperitoneal fibrosis can occur at different times with other lesions of IgG4-related disease including ***,the IgG4 assay is recommended to diagnose idiopathic retroperitoneal *** serum IgG4 levels should be treated and monitored as a symptom of IgG4-related *** first line of treatment for retroperitoneal fibrosis is steroid therapy regardless of its *** patients with concurrent AIP,i.e.,IgG4-related retroperitoneal fibrosis,the starting dose of steroid is usually 30-40 mg/*** response to steroid therapy is generally *** most cases,the pancreatic lesion and retroperitoneal fibrosis improve after the initial ***,the epidemiology,treatment for recurring retroperitoneal fibrosis,and long-term prognosis are still largely *** analysis of such cases and research are necessary.

关键词： Autoimmune pancreatitis Extrapancreatic lesion Immunoglobulin G4 Immunoglobulin G4related disease Retroperitoneal fibrosis

Symbiosis of Salmonellaand Escherichia coliby MY Phenomenon

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Open Journal of Medical Microbiology 2020年第1期10卷 17-25页

作者： Yutaka Midorikawa Satoshi nakamura yusuke Wakasugi Kaoru Midorikawa Suzuka University Medical Science Suzuka Japan Graduate School of Nursing Science and Faculty of Nursing Hiroshima Bunka Gakuen University Hiroshima Japan Faculty of Child Education Suzuka University Suzuka Japan

Background: The symbiotic relationship between E. coli and Salmonella was demonstrated using hydrogen sulfide production named MY phenomenon, which is a feature of Salmonella. Methods: In order to confirm the hydrogen sulfide production of Salmonella by iron sulfide formation, deoxycholate-hydrogen sulfate-lactose agar medium having both a sulfur source and an iron source was used. The case where Salmonella was cultured alone was compared with the case co-cultured with E. coli. In the case of culture with Salmonella alone, the MY phenomenon has not occurred. When Salmonella was co-cultured with E. coli, Salmonella cultured near E. coli existing place showed a black color named MY phenomenon. When E. coli was cultured alone, it turned red due to the organic acid produced. However, when E. coli was cultured in the part where Salmonella. is inoculated on the surface of the medium, the MY phenomenon appeared there. Furthermore, hydrogen sulfide production was more active in Salmonella co-existing with E. coli. Conclusion: The study shows an important relation that E. coli is a promoting factor for Salmonella culture by NY phenomenon. The relation suggests that bacterial symbiosis relation exist in bacterial flora.

关键词： Symbiosis of Salmonella Escherichia coli Bacterial Symbiosis Bacterial Flora

Prognostic significance of BMP and activin membrane-bound inhibitor in colorectal cancer

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World Journal of Gastroenterology 2008年第31期14卷 4880-4888页

作者： Nozomi Togo Susumu Ohwada Shinji Sakurai Hiroyuki Toya Ichiro Sakamoto Tatsuya Yamada Tetsuhiro Nakano Ken Muroya Izumi Takeyoshi Takashi Nakajima Takashi Sekiya yusuke Yamazumi Tsutomu nakamura Tetsu Akiyama Departments of Surgery Graduate School of Medicine Gunma University Gunma 371-8511 Japan Departments of Tumor Pathology Graduate School of Medicine Gunma University Gunma 371-8511 Japan Laboratory of Molecular and Genetic Information Institute for Molecular and Cellular Biosciences University of Tokyo Tokyo 113-0032 Japan

AIM： To investigate the clinical significance of BMP and activin membrane-bound inhibitor （BAMBI） which is a pseudoreceptor of transforming growth factorbeta （TGF-β） type 1 receptors and acts as a negative regulator of TGF-β signaling and expression aberrantly elevated in colorectal cancers （CRCs）. We studied BAMBI expression in CRCs. METHODS： We studied BAMBI expression in 183 surgically resected CRCs by immunochemical and immunoblotting analyses using a generated monoclonal anti-BAMBI antibody. Commercially available anti-β- catenin and anti-p53 antibodies were also applied for immunochemical analyses as a comparison ***： Immunohistochemical analysis revealed that BAMBI expression was observed in 148 （80.8%）, and strong BAMBI expression was observed in 46% of the CRCs. Strong BAMBI expression was positively correlated with histological type, depth of invasion, lymph node metastases, and tumor node metastasis （TNM） stage （P 〈 0.05）. Clear associations were found between BAMBI and β-catenin （P = 0.035） and p53 （P =0.049） expression. In curatively resected CRC, 5-year recurrence-free survival was 51.9% （P = 0.037） for strong BAMBI expression compared to 79.8% for weak BAMBI expression. In the Cox＇s multivariate analysis, lymph node metastases （relative risk 6.685; P 〈 0.001） and depth of invasion （RR 14.0; P = 0.013） were significant indicators for recurrence, and strong BAMBI expression （RR 2.26; P = 0.057） tended to be significant. CONCLUSION： BAMBI was linked to a potentially aggressive tumor phenotype and predicted tumor recurrence and cancer-related death in CRC. BAMBI expression might be applicable in the routine clinical setting of CRC.

关键词： BMP and activin membrane-bound inhibitor Colorectal cancer Transforming growth factor-beta signal Prognosis Wnt signal

Hepcidin/ferroportin expression levels involve efficacy of pegylated-interferon plus ribavirin in hepatitis C virusinfected liver

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World Journal of Gastroenterology 2015年第11期21卷 3291-3299页

作者： Motoyuki Kohjima Tsuyoshi Yoshimoto Munechika Enjoji Nobuyoshi Fukushima Kunitaka Fukuizumi Tsukasa nakamura Miho Kurokawa Nao Fujimori yusuke Sasaki Yasushi Shimonaka yusuke Murata Susumu Koyama Ken Kawabe Kazuhiro Haraguchi Yorinobu Sumida Naohiko Harada Masaki Kato Kazuhiro Kotoh Makoto Nakamuta Department of Gastroenterology and Clinical Research Center National Hospital Organization Kyushu Medical Center Health Care Center Fukuoka University Product Research Department Chugai Pharmaceutical Co.Ltd. Department of Medicine and Bioregulatory Science Kyushu University

AIM:To investigate the relationship between the ironmetabolism-related gene expression profiles and efficacy of antiviral therapy in chronic hepatitis C ***:The hepatic expression profile of ironmetabolism-related genes was analyzed and its association with virological response to pegylated-interferon plus ribavirin combination therapy was evaluated.A hundred patients with chronic hepatitis C(genotype1b,n = 50; genotype 2,n = 50) were enrolled and retrospectively *** biopsy samples were subjected to quantitative polymerase chain reaction for iron-metabolismrelated genes and protein expression(Western blotting analysis) for *** a control,normal liver tissue was obtained from 18 living donors of liver *** hepcidin level was measured by sensitive liquid chromatography/electrospray ionization tandem mass ***:Iron overload is associated with liver damage by increasing oxidative stress and hepatitis C virus(HCV)is reported to induce iron accumulation in hepatocytes in ***,iron administration suppresses HCV replication in ***,the association between HCV infection and iron metabolism remains *** with controls,patients had significantly higher gene expression for transferrin,iron-regulatoryproteins 1 and 2,divalent metal transporter 1,and ferroportin,but similar for transferrin receptors 1 and2,and *** the expression profiles were compared between sustained virological response(SVR)and non-SVR patients,the former showed significantly lower transcription and protein expression of hepcidin and *** of hepcidin-regulating genes,BMPR1,BMPR2,and hemojuvelin,was significantly increased,whereas BMP2 was decreased in HCV-infected ***2 and hemojuvelin expression was significantly lower in the SVR than non-SVR *** infection affects the expression of iron-metabolism-related genes,leading to iron accumulation in ***:Decrea

关键词： Chronic hepatitis C Iron-metabolism Hepcidin Ferro

Lamiaceae Peppermint Oil with Surfactant Showing Equal Antifungal Activity against Candida albicansto Rosemary Chemotype CINEOL

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Advances in Infectious Diseases 2014年第1期4卷 58-65页

作者： yusuke Matsuzaki Yasuaki Kakinoki Mari nakamura Tatsuji Nishihara Toshiyuki Tsujisawa Department of Oral Health Management School of Oral Health Sciences Kyushu Dental University Kitakyushu Japan Division of Infections and Molecular Biology Department of Health Promotion Science of Health Improvement Kyushu Dental University Kitakyushu Japan Division of Special Needs and Geriatric Dentistry Department of Physical Functions Kyushu Dental University Kitakyushu Japan

Oral candidiasis causes pain in oral cavity or tongue. Antifungal drugs are commonly used for the treatment of candidiasis, however, there could be several problems such as side effects, drug resistance, or contraindication to concomitant use with drugs already taken. The development of substituting antimicrobial agents, which could be used internally or as gargling agents, is expected. Some essential oils have been known for the activities against microbes. We focused on the three chemotype essential oils from rosemary and five essential oils from Lamiaceae plants including rosemary, and examined their antifungal activity against Candida albicans by broth microdilution method. The activity with or without addition of Tween 80 or Tween 20 was statistically analyzed. Minimal inhibitory concentration (MIC) values of the essential oils were significantly decreased when either of the two surfactants was added. Among the tested oils, only CAMPHOR, a rosemary chemotype, showed a significantly lower MIC with addition of Tween 20 than Tween 80. It is inferred that the antifungal activity of essential oils is influenced by the type of surfactants. Some of the essential oils showed the same values of MIC and the minimal fungicidal concentration (MFC) when surfactant was added. Peppermint showed the same MICs and MFCs in most cases, and its low MFC indicated potent fungicidal activity against C. albicans, as observed in CINEOL. We will discuss peppermint oil as one of the potential candidates for antifungal agents against C. albicans.

关键词： Essential Oil Rosemary Peppermint Chemotype Surfactant Candida albicans

Antifungal activity of chemotype essential oils from rosemary against Candida albicans

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Open Journal of Stomatology 2013年第2期3卷 176-182页

作者： yusuke Matsuzaki Toshiyuki Tsujisawa Tatsuji Nishihara Mari nakamura Yasuaki Kakinoki Department of Oral Health Management School of Oral Health Sciences Kyushu Dental University Kitakyushu Japan Division of Infections and Molecular Biology Department of Health Promotion Science of Health Improvement Kyushu Dental University Kitakyushu Japan Division of Oral Care and Rehabilitation Department of Control of Physical Functions Science of Physical Functions Kyushu Dental University Kitakyushu Japan

Oral candidiasis is caused by Candida albicans. The symptoms including pain in the oral cavity affect our eating function. While some antifungal agents are commonly used for the treatment of candidiasis, occasional consumption of the effective dose cannot be tolerated due to side effects. There is also a possibility of induction of antifungal resistance, thus the development of replacement agents has been awaited. We aim to explore antimicrobial activities of essential oils. We evaluated the antifungal activities against C. albicans of essential oils from seven aromatic plants from three manufacturers, and of three chemotype essential oils from rosemary (Rosmarinus officinalis). As a result, we found that the antifungal activity was increased several times by the addition of Tween 80. All the tested essential oils showed stable antifungal activity, however, the variation was observed among the manufacturers of rosemary and eucalyptus. Rosemary has three chemotypes;CINEOL, CAMPHOR and VERBENON. They derived from a same plant species, but contain different chemical components. The CINEOL, dose-dependently decreased the number of C. albicans in the time-kill assay. Hence we concluded that the components of rosemary essential oil would have an effect on its antifungal activity. A chemotype is the first to consider in measuring antifungal activities of rosemary oil.

关键词： Candida albicans Essential Oil Rosemary Rosmarinus officinalis Chemotype Antifungal Activity

Endoscopic mucosal resection vs endoscopic submucosal dissection for superficial non-ampullary duodenal tumors

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World Journal of Gastrointestinal Oncology 2020年第8期12卷 918-930页

作者： Mitsuru Esaki Kazuhiro Haraguchi Kazuya Akahoshi Naru Tomoeda Akira Aso Soichi Itaba Haruei Ogino yusuke Kitagawa Hiroyuki Fujii Kazuhiko nakamura Masaru Kubokawa Naohiko Harada Yosuke Minoda Sho Suzuki Eikichi Ihara Yoshihiro Ogawa Department of Medicine and Bioregulatory Science Graduate School of Medical SciencesKyushu UniversityFukuoka 8128582Japan Division of Gastroenterology and Hepatology Department of MedicineNihon University School of MedicineTokyo 1738610Japan Department of Gastroenterology Hara-Sanshin HospitalFukuoka 8120033Japan Department of Gastroenterology Aso Iizuka HospitalIizuka 8208502Japan Department of Gastroenterology Clinical Research InstituteNational Hospital Organization Kyushu Medical CenterFukuoka 8108564Japan Department of Gastroenterology Kitakyushu Municipal Medical CenterKitakyushu 8020077Japan Department of Gastroenterology Kyushu Rosai HospitalKitakyushu 8000296Japan Department of Internal Medicine Saiseikai Fukuoka General HospitalFukuoka 8100001Japan Department of Gastroenterology and Hepatology National Hospital Organization Fukuokahigashi Medical CenterKoga 81103195Japan Department of Gastroenterology and Metabolism Graduate School of Medicine SciencesKyushu UniversityFukuoka 8128582Japan

BACKGROUND The selection of endoscopic treatments for superficial non-ampullary duodenal epithelial tumors(SNADETs)is *** To compare the efficacy and safety of endoscopic mucosal resection(EMR)and endoscopic submucosal dissection(ESD)for *** We retrospectively analyzed the data of patients with SNADETs from a database of endoscopic treatment for SNADETs,which included eight hospitals in Fukuoka,Japan,between April 2001 and October 2017.A total of 142 patients with SNADETs treated with EMR or ESD were *** score matching was performed to adjust for the differences in the patient characteristics between the two *** analyzed the treatment outcomes,including the rates of en bloc/complete resection,procedure time,adverse event rate,hospital stay,and local or metastatic *** Twenty-eight pairs of patients were *** characteristics of patients between the two groups were similar after *** EMR group had a significantly shorter procedure time and hospital stay than those of the ESD group[median procedure time(interquartile range):6(3-10.75)min vs 87.5(68.5-136.5)min,P<0.001,hospital stay:8(6-10.75)d vs 11(8.25-14.75)d,P=0.006].Other outcomes were not significantly different between the two groups(en bloc resection rate:82.1%vs 92.9%,P=0.42;complete resection rate:71.4%vs 89.3%,P=0.18;and adverse event rate:3.6%vs 17.9%,P=0.19,local recurrence rate:3.6%vs 0%,P=1;metastatic recurrence rate:0%in both).Only one patient in the ESD group underwent emergency surgery owing to intraoperative *** EMR has significantly shorter procedure time and hospital stay than ESD,and provides acceptable curability and safety compared to ***,EMR for SNADETs is associated with lower medical costs.

关键词： Endoscopic mucosal resection Endoscopic submucosal dissection Superficial non-ampullary duodenal epithelial tumor Short-term Outcome Propensity score matching