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| 1 | Improving recognition of hepatic perivascular epithelioid cell tumor:Case report and literature review显示文摘A 58-year-old man presented with the chief complaint of abdominal bloating and was incidentally found to have a liver tumor.As diagnostic imaging studies could not rule out malignancy,the patient underwent partial resection of segment 3 of the liver.The lesion pathologically showed eosinophilic proliferation,in addition to immunohistochemical positivity for human melanoma black 45 and Melan-A,thereby leading to the diagnosis of a hepatic perivascular epithelioid cell tumor(PEComa).A PEComa arising from the liver is relatively rare.Moreover,the name ‘PEComa' has not yet been widely recognized,and the same disease entity has been called epithelioid angiomyolipoma(EAML),further diminishing the recognition of PEComa.In addition,PEComa imaging findings mimic those of malignant liver tumors,and clinically,this tumor tends to enlarge.Therefore,a PEComa is difficult to diagnose.We conducted a systematic review of PEComa and EAML cases and discuss the results,including findings useful for differentiating perivascular epithelioid cell tumors from malignant liver tumors. | Toshiya Maebayashi Katsumi Abe Takuya Aizawa Masakuni Sakaguchi Naoya Ishibashi Osamu Abe Tadatoshi Takayama Hisashi Nakayama Shunichi Matsuoka Kazushige Nirei Hitomi Nakamura Masahiro Ogawa Masahiko Sugitani | 2015 | World Journal of Gastroenterology2015,21,17: | 20 |
| 2 | In-channel integration of designable microoptical devices using flat scaffold-supported femtosecond-laser microfabrication for coupling-free optofluidic cell counting显示文摘The high-precision integration of three-dimensional(3D)microoptical components into microfluidics in a customizable manner is crucial for optical sensing,fluorescence analysis,and cell detection in optofluidic applications;however,it remains challenging for current microfabrication technologies.This paper reports the in-channel integration of flexible two-dimensional(2D)and 3D polymer microoptical devices into glass microfluidics by developing a novel technique:flat scaffold-supported hybrid femtosecond laser microfabrication(FSS-HFLM).The scaffold with an optimal thickness of 1–5 μm is fabricated on the lower internal surface of a microfluidic channel to improve the integration of high-precision microoptical devices on the scaffold by eliminating any undulated internal channel surface caused by wet etching.As a proof of demonstration,two types of typical microoptical devices,namely,2D Fresnel zone plates(FZPs)and 3D refractive microlens arrays(MLAs),are integrated.These devices exhibit multicolor focal spots,elongated(>three times)focal length and imaging of the characters‘RIKEN’in a liquid channel.The resulting optofluidic chips are further used for coupling-free white-light cell counting with a success rate as high as 93%.An optofluidic system with two MLAs and a W-filter is also designed and fabricated for more advanced cell filtering/counting applications. | Dong Wu Jian Xu Li-Gang Niu Si-Zhu Wu Katsumi Midorikawa Koji Sugioka | 2015 | Light(Science & Applications)2015,4,1: | 16 |
| 3 | 据于矢耳石Sr/Ca值的长江日本鳗鲡迁移格局多样性分析(英文)显示文摘长江口是中国日本鳗鳗苗的主要产区和仅存的成鳗渔业水域。日本鳗自长江河口至上游金沙江近3000km干流及许多支流中都有分布,但其迁移行为却不为人了解。该文分析了2008年9~11月采自长江靖江段(31o30′N,120o42′E)的153尾银色鳗样本的生物学特征,测定了其中27尾标本的矢耳石Sr/Ca值。结果显示,153尾样本中有雌性85尾、雄性68尾,雌雄性比1:0.8。雌性由3~7(平均5.52)龄组成,平均体长(669±80)mm,体重(555±229)g,丰满度1.77±0.22,性腺指数(GSI)1.32±0.31。雄性由3~5(平均4.38)龄组成,平均体长(518±51)mm,体重(234±76)g,丰满度1.62±0.18,GSI0.21±0.11。雌性的这些生物学参数均显著大于雄性(P<0.05)。依据矢耳石线鳗标志轮平均Sr/Ca值(7.99±1.05)×10-3进行判断,有17尾(即62.96%个体)为'淡水型',10尾(即37.04%个体)为'河口型'。16尾雌性中有13尾(即81.25%)为'淡水型',3尾为'河口型'。11尾雄性中仅36.36%为'淡水型',63.64%为'河口型'。对每个生长层组的Sr/Ca值分析表明,雌雄间2龄时无显著差异,但3龄、4龄和洄游龄组都有显著或极显著的差异,预示着2龄时两者的栖息水域比较一致,但后来出现了明显栖息地分化。 | 郭弘艺 郑怡 唐文乔 沈皓 魏凯 谢正丽 Katsumi Tsukamoto | 2011 | Zoological Research2011,32,4: | 10 |
| 4 | Colorectal endoscopic submucosal dissection: Recent technical advances for safe and successful procedures显示文摘Endoscopic submucosal dissection(ESD) is very useful in en bloc resection of large superficial colorectal tumors but is a technically difficult procedure because the colonic wall is thin and endoscopic maneuverability is poor because of colonic flexure and extensibility. A high risk of perforation has been reported in colorectal ESD. To prevent complications such as perforation and unexpected bleeding, it is crucial to ensure good visualization of the submucosal layer by creating a mucosal flap, which is an exfoliated mucosa for inserting the tip of the endoscope under it. The creation of a mucosal flap is often technically difficult; however, various types of equipment, appropriate strategy, and novel procedures including our clip-flap method, appear to facilitate mucosal flap creation, improving the safety and success rate of ESD. Favorable treatment outcomes with colorectal ESD have already been reported in many advanced institutions, and appropriate understanding of techniques and development of training systems are required for world-wide standardization of colorectal ESD. Here, we describe recent technical advances for safe and successful colorectal ESD. | Katsumi Yamamoto Tomoki Michida Tsutomu Nishida Shiro Hayashi Masafumi Naito Toshifumi Ito | 2015 | World Journal of Gastrointestinal Endoscopy2015,7,14: | 9 |
| 5 | Quantitation of HBsAg predicts response to entecavir therapy in HBV genotype C patients显示文摘AIM:To analysis the factors that predict the response to entecavir therapy in chronic hepatitis patients with hepatitis B virus (HBV) genotype C. METHODS:Fifty patients [hepatitis B e antigen (HBeAg)-negative:HBeAg-positive = 26:24] with HBV genotype C, who received nave entecavir therapy for > 2 years, were analyzed. Patients who showed HBV DNA levels ≥ 3.0 log viral copies/mL after 2 years of entecavir therapy were designated as slow-responders, while those that showed < 3.0 log copies/mL were termed rapid- responders. Quantitative hepatitis B surface antigen (HBsAg) levels (qHBsAg) were determined by the Architect HBsAg QT immunoassay. Hepatitis B core-related antigen was detected by enzyme immunoassay. Pre-C and Core promoter mutations were determined using by polymerase chain reaction (PCR). Drug-resistance mutations were detected by the PCR-Invader method. RESULTS:At year 2, HBV DNA levels in all patients in the HBeAg-negative group were < 3.0 log copies/mL. In contrast, in the HBeAg-positive group, 41.7% were slow-responders, while 58.3% were rapid-responders. No entecavir-resistant mutants were detected in the slow-responders. When the pretreatment factors were compared between the slow-and rapid-responders; the median qHBsAg in the slow-responders was 4.57 log IU/mL, compared with 3.63 log IU/mL in the rapid-responders (P < 0.01). When the pretreatment factors predictive of HBV DNA-negative status at year 2 in all 50 patients were analyzed, HBeAg-negative status, low HBV DNA levels, and low qHBsAg levels were significant (P < 0.01). Multivariate analysis revealed that the low qHBsAg level was the most significant predictive factor (P = 0.03). CONCLUSION:Quantitation of HBsAg could be a useful indicator to predict response to entecavir therapy. | Etsuro Orito Kei Fujiwara Hiroshi Kanie Tesshin Ban Tomonori Yamada Katsumi Hayashi | 2012 | World Journal of Gastroenterology2012,18,39: | 8 |
| 6 | Diagnostic sensitivity of imaging modalities for hepatocellular carcinoma smaller than 2 cm显示文摘AIM:To compare the imaging results with histology and to evaluate the diagnostic sensitivity of imaging modalities for hepatocellular carcinoma(HCC)smaller than 2 cm.METHODS:Nodules smaller than 2 cm(n=34)revealed by ultrasonography(US)in 29 patients with liver cirrhosis were analyzed.Histological diagnosis of HCC was performed by ultrasonographic guidance:moderately-differentiated HCC(n=24);well-differentiated HCC(n=10).The patterns disclosed by the four imaging modalities defined the conclusive diagnosis of HCC:(1)contrast-enhanced computed tomography(CECT),hypervascularity in the arterial phase and washout in the equilibrium phase;(2)Sonazoid contrast-enhanced US(CEUS),hypervascularity in the early vascular phase and defect in the Kupffer phase;(3)gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid(Gd-EOBDTPA)-enhanced magnetic resonance imaging(MRI),hypervascularity in the arterial phase and/or defect in the hepatobiliary phase;and(4)CT arterioportal angiography:hypervascularity by CT during arteriography and/ or perfusion defect by CT during arterial portography.RESULTS:Overall,the sensitivity of diagnosing HCC smaller than 2 cm was 52.9%(18/34)(95%CI:35.170.2)by CECT;67.6%(23/34)(95%CI:49.5-82.6)by Sonazoid CEUS;76.5%(26/34)(95%CI:58.8-89.3) by Gd-EOB-DTPA MRI;and 88.2%(30/34)(95%CI: 72.5-96.7)by CT arterioportal angiography.The diagnostic sensitivity of detecting moderately-differentiated HCC by CECT,Sonazoid CEUS,Gd-EOB-DTPA MRI and CT arterioportal angiography was 62.5%(15/24)(95%CI: 40.6-81.2),79.2%(19/24)(95%CI:57.8-92.9),75.0% (18/24)(95%CI:53.3-90.2)and 95.8%(23/24)(95% CI:78.9-99.9),respectively.A significant difference(P< 0.05)was observed between CECT and CT arterioportal angiography in all nodules.There was no difference between Sonazoid CEUS,Gd-EOB-DTPA MRI,and CT arterioportal angiography.The combined sensitivity of Sonazoid CEUS and Gd-EOB-DTPA MRI was 94.1%(32/34).CONCLUSION:Changing the main diagnostic modality for HCC smaller than 2 cm from CT arterioportal angiography to Sonazoid CEUS and Gd-EOB-DTPA MRI is recommended. | Keiji Mita Soo Ryang Kim Masatoshi Kudo Susumu Imoto Taisuke Nakajima Kenji Ando Katsumi Fukuda Toshiyuki Matsuoka Yoko Maekawa Yoshitake Hayashi | 2010 | World Journal of Gastroenterology2010,16,33: | 7 |
| 7 | Choice of conodont Idiognathodus simulator (sensu stricto) as the event marker for the base of the global Gzhelian Stage (Upper Pennsylvanian Series, Carboniferous System)显示文摘 | Philip H. Heckel Aleksandr S. Alekseev James E. Barrick Darwin R. Boardman Natalya V. Goreva Tatiana N. Isakova Tamara I. Nemyrovska Katsumi Ueno Elisa Villa David M. Work | 2008 | Episodes2008,31,3: | 5 |
| 8 | The ultra-low-frequency magnetic disturbances associated with earthquakes显示文摘The ultra-low-frequency(ULF) electromagnetic emission is recently recognized as one of the most promising candidates for short-term earthquake(EQ) prediction.This paper reviews previous convincing evidence on the presence of ULF emissions before three major EQs.Then,we present further statistical study on the ULF occurrence,our networks of ULF monitoring in different spatial scales in Japan and finally we present several signal processings to identify the seismogenic emissions by showing latest results for recent large EQs. | Masashi Hayakawa Yasuhide Hobara Kenji Ohta Katsumi Hattori | 2011 | Earthquake Science2011,24,6: | 5 |
| 9 | Ectopic gastrointestinal variceal bleeding with portal hypertension显示文摘Massive gastrointestinal bleeding from gastrointestinal varices is one of the most serious complications in patients with portal hypertension. However, if no bleeding point can be detected by endoscopy in the predilection sites of gastrointestinal varices, such as the esophagus and stomach, ectopic gastrointestinal variceal bleeding should be considered as a differential diagnosis. Herein, we report a case of ectopic ileal variceal bleeding in a 57-year-old woman, which was successfully diagnosed by multi-detector row CT(MDCT) and angiography and treated by segmental ileum resection. To date, there have been no consensus for the treatment of ectopic ileal variceal bleeding. This review was designed to clarify the clinical characteristics of patients with ectopic ileal variceal and discuss possible treatment strategies. From the PubMed database and our own database, we reviewed 21 consecutive cases of ileal variceal bleeding diagnosed from 1982 to 2017. MDCT and angiography is useful for the rapid examination and surgical resection of an affected lesion and is a safe and effective treatment strategy to avoid further bleeding. | Keita Minowa Shuhei Komatsu Kenichiro Takashina Sachie Tanaka Tatsuya Kumano Kenichiro Imura Katsumi Shimomura Jun Ikeda Fumihiro Taniguchi Yasuo Ueshima Tecchuu Lee Eito Ikeda Eigo Otsuji Yasuhiro Shioaki | 2017 | World Journal of Gastrointestinal Surgery2017,9,12: | 4 |
| 10 | Effect of atrial natriuretic peptide on ischemia-reperfusion injury in a porcine total hepatic vascular exclusion model显示文摘AIM: To evaluate the effect of ANP on warm I/R injury in a porcine THVE model. METHODS: Miniature pigs (mini-pigs) weighing 16-24 kg were observed for 120 min after reperfusion following 120 min of THVE. The animals were divided into two groups. ANP (0.1 μg/kg per min) was administered to the ANP group (n = 7), and vehicle was administered to the control group (n = 7). Either vehicle or ANP was intravenously administered from 30 min before the THVE to the end of the experiment. Arterial blood was collected to measure AST, LDH, and TNF-α. Hepatic tissue blood ? ow (HTBF) was also measured. Liver specimens were harvested for p38 MAPK analysis and histological study. Those results were compared between the two groups. RESULTS: The AST and LDH levels were lower in the ANP group than in the control group; the AST levels were signifi cantly different between the two groups (60 min: 568.7 ± 113.3 vs 321.6 ± 60.1, P = 0.038 < 0.05, 120 min: 673.6 ± 148.2 vs 281.1 ± 44.8, P = 0.004 < 0.01). No signifi cant difference was observed in the TNF-α levels between the two groups. HTBF was higher in the ANP group, but the difference was not signif icant. A signifi cantly higher level of phosphorylated p38 MAPK was observed in the ANP group compared to the controlgroup (0 min: 2.92 ± 1.1 vs 6.38 ± 1.1, P = 0.011 < 0.05).Histological tissue damage was milder in the ANP group than in the control group. CONCLUSION: Our results show that ANP has a protective role in I/R injury with p38 MAPK activation in a porcine THVE model. | Katsumi Kobayashi Kiyohiro Oshima Masato Muraoka Takahiko Akao Osamu Totsuka Hisashi Shimizu Hiroaki Sato Kazumi Tanaka Kenjiro Konno Koshi Matsumoto Izumi Takeyoshi | 2007 | World Journal of Gastroenterology2007,13,25: | 4 |
| 11 | 超低频地磁异常与2000年日本伊豆诸岛震群的关系显示文摘通过研究电磁现象与大地震的联系有助于建立监测地壳运动(如地震、火山喷发)的电磁方法.在地震的紧急预报中,超低频(ULF)地磁的方法是最有前途的方法之一.本文将一种主要分量分析的新方法应用在了与2000年日本伊豆诸岛震群有关的ULF地磁资料的研究中.这次震群活动始于2000年6月26日,同年9月结束.在这次地震活动中,观测到5次震级超过6级的大地震(分别发生在7月1日、8日、15日、30日和8月18日).在此期间,我们的超低频地磁观测站幸运地记录下了数据,其中有三个观测站相距很近(大约5 km的距离),距地震中心大约80~100 km.因为我们可以在正交分解的基础上,用主要分量分析法将一些噪声分辨出来,所以我们把主要分量分析法用在了超低频地磁水平方向的NS分量中.我们研究了主要分量分析法结果中本征值和本征矢量的临时变化,这些结果总结如下.第一主要分量是源于日地交互作用影响的信号,如:地磁脉动.第一主要分量的本征矢量的变化说明这种信号在整个分析过程中非常稳定.第二主要分量中混有当地的人为的噪音.而最小的第三分量出现在伊豆半岛当地的子夜,在大地震前几天,第三本征值明显地增加.大约在震群活动开始前三个月,第三本征值的水平有微小增强.相应地,在信号的子空间中本征矢量方向的模式同时改变,在震群活动后又恢复到了其原来的水平.这些特征可能与大地震有关.最后我们强调主要分量分析的方法是目前监测地壳活动最有前途的方法. | Katsumi Hattori Aya Serita Kaoru Gotoh Chie Yoshino Makoto Harada Nobuhiro Isezaki Masashi Hayakawa 辛长江 | 2005 | 国际地震动态2005,,11: | 4 |
| 12 | Scirrhous hepatocellular carcinoma displaying atypical findings on imaging studies显示文摘We describe a 15-mm scirrhous hepatocellular carcinoma(HCC) in a 60-year-old man with B-type cirrhosis.Ultrasound disclosed a 15-mm hypoechoic nodule in segment 7.Contrast-enhanced US revealed heterogeneous,not diffuse,hypervascularity in the early phase and a defect in the Kupffer phase.Contrast-enhanced computed tomography(CT) revealed a heterogeneous hypervascular nodule in the early phase and a low-density area in the late phase.Magnetic resonance imaging(MRI) revealed iso-to hypointensity at T1 and high intensity at T2-weighted sequences.Contrast-enhanced MRI also revealed a heterogeneous hypervascular nodule in the early phase and washout in the late phase.Super-paramagnetic iron oxide-MRI revealed a hyperintense nodule.CT during hepatic arteriography and CT during arterial portography revealed heterogeneous hyperattenuation and a perfusion defect,respectively.Based on these imaging findings the nodule was diagnosed as a mixed well-differentiated and moderately-differentiated HCC.Histologically,the nodule was moderately-differentiated HCC characterized by typical cytological and structural atypia with dense fibrosis.Immunohistochemically,the nodule was positive for heterochromatin protein 1 and alpha-smooth muscle actin,and negative for cytokeratin 19.From the above findings,the nodule was diagnosed as scirrhous HCC.Clinicians engaged in hepatology should exercise caution with suspected scirrhous HCC when imaging studies reveal atypical findings,as shown in our case on the basis of chronic liver disease. | Soo Ryang Kim Susumu Imoto Taisuke Nakajima Kenji Ando Keiji Mita Katsumi Fukuda Ryo Nishikawa Yu-ichiro Koma Toshiyuki Matsuoka Masatoshi Kudo Yoshitake Hayashi | 2009 | World Journal of Gastroenterology2009,15,18: | 4 |
| 13 | Oxidation of antimony (Ⅲ) in soil by manganese (Ⅳ) oxide using X-ray absorption fine structure显示文摘The oxidation of antimony(III) in soils was studied using X-ray absorption fine structure(XAFS)spectra.An andosol soil sample and artificial soil samples(SiO_2 blended with iron(III) hydroxide and manganese(IV) oxide) were used herein.After adding antimony(III) oxide to all soil samples,the oxidation process was observed by recording the XAFS spectra of Sb K-edge,Fe Kedge,and Mn K-edge.The results indicated that manganese(IV) oxide played an important role in the oxidation of Sb(III);however iron(III) hydroxide was not directly related to the reaction.During a 2-hr continuous Sb K-edge X-ray absorption near edge structure(XANES) measurement with an interval of 1 min of one of the artificial soil samples(SiO_2+ MnO_2+ Sb_2O_3),a pseudo-first-order reaction was determined with an average estimated rate of 0.52 ± 0.04 hr-1.Compared to the lower oxidation rate of andosol,it is suggested that because of the low concentration of Mn(IV) in natural soils,the oxidation process of Sb(III) might be relatively slow and require more time to convert Sb(III) to Sb(V). | Lei Fu Katsumi Shozugawa Motoyuki Matsuo | 2018 | Journal of Environmental Sciences2018,30,11: | 4 |
| 14 | Complete response with sorafenib and transcatheter arterial chemoembolization in unresectable hepatocellular carcinoma显示文摘Patients with advanced hepatocellular carcinoma(HCC) showing portal vein tumor thrombosis(PVTT) have an extremely poor prognosis. According to treatment guidelines, the only option for HCC patients with PVTT is sorafenib chemotherapy. However, in Asia, various treatments have been attempted and possible prolongation of overall survival has been repeatedly reported. We herein report the first case of a patient with an initially unresectable advanced HCC with PVTT who underwent curative hepatectomy after sorafenib and transcatheter arterial chemoembolization(TACE) showing complete histological response. Two months after induction with sorafenib, a significant decrease in serum alpha-fetoprotein level was observed and computed tomography imaging showed a significant decrease in tumor size. Because of remaining PVTT, TACE and curative resection were performed. The combination of sorafenib and TACE may be an effective treatment for HCC patients with PVTT. | Michitoshi Takano Takashi Kokudo Yoshihiro Miyazaki Yumiko Kageyama Amane Takahashi Katsumi Amikura Hirohiko Sakamoto | 2016 | World Journal of Gastroenterology2016,22,42: | 4 |
| 15 | Relationships of the anaerobic threshold with the 5 km, 10 km, and 10 mile races显示文摘 | Syuzo Kumagai Kiyoji Tanaka Yoshiyuki Matsuura Akira Matsuzaka Kohji Hirakoba Katsumi Asano | 1982 | European Journal of Applied Physiology and Occupational Physiology1982,,: | 4 |
| 16 | A support tool incorporating a district disaster mitigation performance evaluation method for the examination of improvement plans in built-up areas显示文摘 | Kazuki Karashima Akira Oheai Katsumi Tadamura | 2015 | Frontiers of Architectural Research2015,4,4: | 3 |
| 17 | Cytokine gene polymorphisms in Japanese patients with hepatitis B virus infection—association between TGF-β1 polymorphisms and hepatocellular carcinoma显示文摘 | Kiyoshi Migita Seiji Miyazoe Yumi Maeda Manabu Daikoku Seigo Abiru Tshihito Ueki Koji Yano Shinya Nagaoka Takehiro Matsumoto Kazuhiko Nakao Keisuke Hamasaki Hiroshi Yatsuhashi Hiromi Ishibashi Katsumi Eguchi | 2004 | Journal of Hepatology2004,,4: | 3 |
| 18 | Influence of interleukin-10 gene promoter polymorphisms on disease progression in patients chronically infected with hepatitis B virus显示文摘 | Seiji Miyazoe Keisuke Hamasaki Keisuke Nakata Yuji Kajiya Kayo Kitajima Kazuhiko Nakao Manabu Daikoku Hiroshi Yatsuhashi Michiaki Koga Michitami Yano Katsumi Eguchi | 2002 | The American Journal of Gastroenterology2002,,8: | 3 |
| 19 | Basic helix-loop-helix transcription factors DEC1 and DEC2 regulatethe paclitaxel-induced apoptotic pathway of MCF-7 human breast cancer cells显示文摘 | Yunyan Wu Fuyuki Sato Ujjal Bhawal Takeshi Kawamoto Katsumi Fujimoto Mitsuhide Noshiro Satoko Morohashi Yukio Kato Hiroshi Kijima | 2011 | International Journal of Molecular Medicine2011,,4: | 3 |
| 20 | Determination of ammonium on an integrated microchip with LED-induced fluorescence detection显示文摘A simply fabricated microfluidic device integrated with a fluorescence detection system has been developed for on-line determination of ammonium in aqueous samples. A 365-nm light-emitting diode (LED) as an excitation source and a minor band pass filter were mounted into a polydimethylsiloxane (PDMS)-based microchip for the purpose of miniaturization of the entire analytical system. The ammonium sample reacted with o-phthaldialdehyde (OPA) on-chip with sodium sulfite as reducing reagent to produce a fluorescent isoindole derivative, which can emit fluorescence signal at about 425 nm when excited at 365 nm. Effects of pH, flow rate of solutions, concentrations of OPA-reagent, phosphate and sulfite salt were investigated. The calibration curve of ammonium in the range of 0.018- 1.8 μg/mL showed a good linear relationship with R2 = 0.9985, and the detection limit was (S /N = 3) 3.6 × 10 4 μg/mL. The relative standard deviation was 2.8% (n = 11) by calculating at 0.18 μg/mL ammonium for repeated detection. The system was applied to determine the ammonium concentration in rain and river waters, even extent to other analytes fluorescence detection by the presented device. | Shuhua Xue Katsumi Uchiyama Hai-fang Li | 2012 | Journal of Environmental Sciences2012,24,3: | 3 |