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Distribution of Fluorescent Whitening Agents as an Indicator of Domestic Wastewater
Okumura, Ryouji,Yamamoto, Hiroki,Fujiwara, Manabu,Hayakawa, Kazuhide The Korean Society of Limnology 2005 생태와 환경 Vol.38 No.S
The distributions of fluorescent whitening agents (FWA) in the water of the Yasu River and their tributaries flowing into Lake Biwa (Japan) were surveyed on winter and summer. The FWA fluxes had linear correlation with the corrected resident population in catchments of the tributaries of Yasu River. Therefore, the FWAs in the rivers come from domestic wastewater, and those fluxes in the tributaries depended on the human population of their catchments. As an application of the FWA indicating domestic wastewater, we could assess seasonal changes in the sources of dissolved organic matter in the tributaries.
Opinion Extraction based on Syntactic Pieces
( Suguru Aoki ),( Kazuhide Yamamoto ) 한국언어정보학회 2007 학술대회 논문집 Vol.2007 No.-
This paper addresses a task of opinion extraction from given documents and its positive/negative classification. We propose a sentence classification method using a notion of syntactic piece. Syntactic piece is a minimum unit of structure, and is used as an alternative processing unit of n-gram and whole tree structure. We compute its semantic orientation, and classify opinion sentences into positive or negative. We have conducted an experiment on more than 5000 opinion sentences of multiple domains, and have proven that our approach attains high performance at 91% precision.
Iwatsuki, Keiji,Ohtsuka, Mikio,Matsui, Takashi,Yamamoto, Takenobu,Fujii, Kazuyasu,Yamasaki, Osamu,Tsuji, Kazuhide Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2
Erythrodermic actinic reticuloid (EAR) is a photosensitive disorder characterized by dense lymphocytic infiltration in the sun-exposed areas and an increased number of atypical lymphocytes in the peripheral blood. We have reported 2 patients with EAR with circulating atypical lymphocytes and photosensitivity to both ultraviolet (UV) B and A. Although no clonal proliferation of T-cells was observed in the peripheral blood, CD8+ cells were increased in number in an oligoclonal fashion. A number of proliferating CD8+ cells were small, but most cells expressed bcl-2. These findings suggest EAR is a photosensitivity dermatitis characterized by the overspill of oligoclonal CD8+ lymphocytes responsive to UV irradiation.
Analysis of Risk Factors for Colonic Diverticular Bleeding: A Matched Case-Control Study
( Yuusaku Sugihara ),( Shin Ei Kudo ),( Hideyuki Miyachi ),( Masashi Misawa ),( Shogo Okoshi ),( Hiroyuki Okada ),( Kazuhide Yamamoto ) 대한소화기학회 2016 Gut and Liver Vol.10 No.2
Background/Aims: Diverticular bleeding can occasionally cause massive bleeding that requires urgent colonoscopy (CS) and treatment. The aim of this study was to identify significant risk factors for colonic diverticular hemorrhage. Methods: Between January 2009 and December 2012, 26,602 patients underwent CS at our institution. One hundred twenty-three patients underwent an urgent CS due to acute lower gastrointestinal hemorrhage. Seventy-two patients were diagnosed with colonic diverticular hemorrhage. One hundred forty-nine age- and sex-matched controls were selected from the patients with nonbleeding diverticula who underwent CS during the same period. The relationship of risk factors to diverticular bleeding was compared between the cases and controls. Results: Uni- and multivariate conditional logistic regression analyses demonstrated that the use of nonsteroidal anti-inflammatory drugs (odds ratio [OR], 14.70; 95% confidence interval [CI], 3.89 to 55.80; p<0.0001), as well as the presence of cerebrovascular disease (OR, 8.66; 95% CI, 2.33 to 32.10; p=0.00126), and hyperuricemia (OR, 15.5; 95% CI, 1.74 to 138.00; p=0.014) remained statistically significant predictors of diverticular bleeding. Conclusions: Nonsteroidal anti-inflammatory drugs, cerebrovascular disease and hyperuricemia were significant risks for colonic diverticular hemorrhage. The knowledge obtained from this study may provide some insight into the diagnostic process for patients with lower gastrointestinal bleeding. (Gut Liver 2016;10:244-249)
( Masaya Iwamuro ),( Masato Okuda ),( Eiichiro Yumoto ),( Seiyuu Suzuki ),( Atsuko Shirakawa ),( Katsuyoshi Takata ),( Tadashi Yoshino ),( Hiroyuki Okada ),( Kazuhide Yamamoto ) 대한간학회 2013 Gut and Liver Vol.7 No.2
The representative endoscopic features of primary intestinal follicular lymphoma are well known as small whitish polypoid nodules, but a magnified view has only been described in a few case reports. Herein, we report a case with intestinal follicular lymphoma in which magnifying endoscopy with narrow band imaging was helpful for prompt diagnosis. A 57-year-old Japanese woman underwent surveillance esophagogastroduodenoscopy. The endoscopic examination revealed confluent whitish granules in the duodenum, distinct from the nodules or polyps that are typical findings of intestinal follicular lymphoma. Magnifying endoscopy visualized whitish enlarged villi, and narrow band imaging emphasized an elongated and coiled vascular pattern. Based on these features, intestinal follicular lymphoma was highly suspected, and subsequent histological study confirmed the diagnosis. This case demonstrates that magnifying endoscopy with narrow band imaging was useful for the detection and prompt diagnosis of intestinal follicular lymphoma. The pathological features of intestinal follicular lymphoma are also discussed. (Gut Liver 2013;7:258-261)