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Risk of cancer,with special reference to extra-intestinal malignancies,in patients with inflammatory bowel disease

World Journal of Gastroenterology 2013年第48期19卷 9359-9365页

作者： alicia algaba Iván Guerra ngel Castao Gema de la Poza Víctor M Castellano Montserrat López Fernando Bermejo Department of Gastroenterology Hospital Universitario de Fuenlabrada 28942 Madrid Spain Department of Pathology Hospital Universitario de Fuenlabrada28942 Madrid Spain

AIM:To determine the incidence and characteristics of intestinal and extra-intestinal cancers among patients with inflammatory bowel disease in a Spanish hospital and to compare them with those of the local ***:This was a prospective,observational,7-year follow-up,cohort *** incidence,incidence rates based on person-years of follow-up and relative risk were calculated for patients with inflammatory bowel disease and compared with the background *** incidence of cancer was determined using a hospital-based data registry from Hospital Universitario de *** data and details about time from diagnosis of inflammatory bowel disease to occurrence of cancer,disease extent,inflammatory bowel disease treatment,cancer therapy and cancer evolution were also collected in the inflammatory bowel disease ***:Eighteen of 590 patients with inflammatory bowel disease developed cancer[cumulative incidence=3%(95%CI:1.58-4.52)vs 2%(95%CI:1.99-2.11)in the background population;RR=1.5;95%CI:0.97-2.29].The cancer incidence among inflammatory bowel disease patients was 0.53%(95%CI:0.32-0.84)per patient-year of *** with inflammatory bowel disease had a significantly increased relative risk of urothelial carcinoma(RR=5.23,95%CI:1.95-13.87),appendiceal mucinous cystadenoma(RR=36.6,95%CI:7.92-138.4),neuroendocrine carcinoma(RR=13.1,95%CI:1.82-29.7)and rectal carcinoid(RR=8.94,95%CI:1.18-59.7).Colorectal cancer cases were not ***:The overall risk of cancer did not significantly increase in our inflammatory bowel disease ***,there was an increased risk of urinary bladder cancer and,with less statistical power,an increased risk of appendiceal mucinous cystadenoma and of neuroendocrine *** cancer risk was low in our series.

关键词： Extra-intestinal cancer Inflammatory bowel disease Cancer risk Background population Urothelial carcinoma Appendiceal mucinous cystadenoma Neuroendocrine carcinoma Rectal carcinoid

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Local Phase Portraits through the Newton Diagram of a Vector Field

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Acta Mathematica Sinica,English Series 2015年第6期31卷 1015-1034页

作者： Antonio algaba Isabel CHECA Cristóbal GARCIA Manuel REYES Department of Mathematics Faculty of Experimental Sciences

The Newton diagram and, in particular, the lowest-degree quasi-homogeneous terms of an analytic planar vector field allow us to determine the existence of characteristic orbits and separatrices of an isolated singular point. We give an easy algorithm for obtaining the local phase portrait near the origin of a bi-dimensional differential system and we provide several examples.

关键词： Monodromy separatrices phase portraits quasi-homogeneous vector field

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Comments on "Non-existence of Shilnikov chaos in continuous-time systems"

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Applied Mathematics and Mechanics(English Edition) 2013年第9期34卷 1175-1176页

作者： A.algaba F.FERNANDEZ-SANCHEZ M.MERINO A.J.RODRIGUEZ-LUIS Departamento de Matematicas Centro de Investigacion de Fisica Teorica y Matematica FIMATUniversity of Huelva Departamento de Matematica Aplicada II E.S.IngenierosUniversity of Sevilla Camino de los Descubrimientos s/n

A paper, ＂Non-existence of Shilnikov chaos in continuous-time systems＂ was published in the journal Applied Mathematics and Mechanics （English Edition）. The authors gave sufficient conditions for the non-existence of homoclinic and heteroclinic orbits in an nth-order autonomous system. Unfortunately, we show in this comment that the proof presented is erroneous and the result is invalid. We also provide two counterexamples of the wrong criterion stated by the authors.

关键词： homoclinic chaos heteroclinic chaos non-existence of Shilnikov chaos

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服用纺织品抗紫外线因数的人体模拟测试法

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国外纺织技术（纺织针织服装化纤染整） 2003年第2期 32-37页

作者： I.algaba 刘玉莉

1前言从20世纪20年代开始,人们的生活方式逐渐发生了变化,户外活动的时间越来越长,受到的太阳辐射也越来越多.吸收少量的阳光对于许多有机体来说是有益的,因为它可以促进骨骼的生长及维生素的同化作用等.但是,过量的吸收却会造成紫外线... 详细信息

1前言从20世纪20年代开始,人们的生活方式逐渐发生了变化,户外活动的时间越来越长,受到的太阳辐射也越来越多.吸收少量的阳光对于许多有机体来说是有益的,因为它可以促进骨骼的生长及维生素的同化作用等.但是,过量的吸收却会造成紫外线对皮肤的潜在损伤.有意思的是,晒黑是对皮肤的一种保护机制.紫外线进入皮肤,燃烧其细胞而产生晒斑.为避免更大程度的损伤,黑素细胞(表皮细胞)产生一种叫黑色素的物质,使皮肤具有棕色外观,而更重要的是,它可对皮肤起到抗紫外线的作用.然而,年复一年的损伤累计会最终导致黑素细胞DNA的改变.遭到破坏的细胞存活下来并且进行再生,继而在细胞附近进行破坏,从而激发了癌细胞的生长.

关键词：服用纺织品抗紫外线因数人体模拟测试法标准测试方法

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纤维种类和织物孔隙度对夏季织物紫外线防护系数的影响

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中国纤检 2010年第15期 78-82页

作者： I.algaba A.Riva P.C.Crews

随着许多国家的皮肤癌比率逐步上升,UV辐射对人体皮肤的影响逐渐引起人们的注意。很多夏季的轻薄服装并不能对户外工作者起到足够保护作用。本研究比较了几种织物的紫外线防护因子(UPF),这些织物的成分和结构适用于夏季服装。为开发一... 详细信息

随着许多国家的皮肤癌比率逐步上升,UV辐射对人体皮肤的影响逐渐引起人们的注意。很多夏季的轻薄服装并不能对户外工作者起到足够保护作用。本研究比较了几种织物的紫外线防护因子(UPF),这些织物的成分和结构适用于夏季服装。为开发一种数学预测模型,测试了纤维种类和织物的孔隙度对UPF值的影响。结果显示:对每种纤维分别分析,UPF和织物孔隙度两个参数具有高相关性。对单一纤维可以开发预测模型,但是还不能用于广泛的应用。

关键词：棉纤维模型多孔性 UV防护

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East Asian VLBI Network observations of active galactic nuclei jets:imaging with KaVA+Tianma+Nanshan

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Research in Astronomy and Astrophysics 2021年第8期21卷 220-234页

作者： Yu-Zhu Cui Kazuhiro Hada Motoki Kino Bong-Won Sohn Jongho Park Hyun-Wook Ro Satoko Sawada-Satoh Wu Jiang Lang Cui Mareki Honma Zhi-Qiang Shen Fumie Tazaki Tao An Ilje Cho Guang-Yao Zhao Xiao-Peng Cheng Kotaro Niinuma Kiyoaki Wajima Ying-Kang Zhang Noriyuki Kawaguchi Juan-Carlos algaba Shoko Koyama Tomoya Hirota Yoshinori Yonekura Nobuyuki Sakai Bo Xia Yong-Bin Jiang Lin-Feng Yu Wei Gou Ju-Yeon Hwang Yong-Chen Jiang Yun-Xia Sun Dong-Kyu Jung Hyo-Ryoung Kim Jeong-Sook Kim Hideyuki Kobayashi Jee-Won Lee Jeong-Ae Lee Hua Zhang Guang-Hui Li Zhi-Qiang Xu Peng Li Jung-Hwan Oh Se-Jin Oh Chung-Sik Oh Tomoaki Oyama Duk-Gyoo Roh Katsunori-M.Shibata Wen Guo Rong-Bing Zhao Wei-Ye Zhong Jin-Qing Wang Wen-Jun Yang Hao Yan Jae-Hwan Yeom Bin Li Xiao-Fei Li Jian-Ping Yuan Jian Dong Zhong Chen Kazunori Akiyama Keiichi Asada Do-Young Byun Yoshiaki Hagiwara Jeffrey Hodgson Tae-Hyun Jung Kee-Tae Kim Sang-Sung Lee Kunwoo Yi Qing-Hui Liu Xiang Liu Ru-Sen Lu Masanori Nakamura Sascha Trippe Na Wang Xue-Zheng Wang Bo Zhang Department of Astronomical Science The Graduate University for Advanced StudiesSOKENDAI2-21-1 OsawaMitakaTokyo 181-8588Japan Mizusawa VLBI Observatory National Astronomical Observatory of Japan2-12 HoshigaokaMizusawaOshuIwate 023-0861Japan Kogakuin University of Technology and Engineering Academic Support Center2665-1 NakanoHachiojiTokyo 192-0015Japan Korea Astronomy and Space Science Institute Yuseong-guDaejeon 34055Korea Department of Astronomy Yonsei University50 Yonsei-roSeodaemun-guSeoul 03722Korea Department of Astronomy and Space Science University of Science and Technology217 Gajeong-roDaejeonKorea Institute of Astronomy and Astrophysics Academia Sinica645 N Aohoku PIHiloHI 96720USA Graduate School of Sciences and Technology for Innovation Yamaguchi UniversityYoshida 1677-1YamaguchiYamaguchi 753-8512Japan Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Key Laboratory of Radio Astronomy Chinese Academy of SciencesNanjing 210008China Institute of Astronomy The University of Tokyo2-21-1 OsawaMitakaTokyo 181-0015Japan Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomia s/nGranada E-18008Spain Department of Physics Faculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia Center for Astronomy Ibaraki University2-1-1 BunkyoMitoIbaraki 310-8512Japan Space Light Laboratory 77Yangjaedae-ro 86 roadGangdong-guSeoulKorea Massachusetts Institute of Technology Haystack Observatory 99 Millstone RoadWestfordMA 01886USA National Radio Astronomy Observatory 520 Edgemont RdCharlottesvilleVA 22903USA Toyo University 5-28-20 HakusanBunkyo-kuTokyo 112-8606Japan Department of Physics and Astronomy Seoul National UniversityGwanak-guSeoul 08826Korea Max Planck Institute for Radio Astronomy Auf dem hiigel 69Bonn 53121Germany SNU Astronomy Research Center Seoul National UniversityGwanak-guSeoul 08826Korea

The East Asian Very Long Baseline Interferometry(VLBI) Network(EAVN) is a rapidly evolving international VLBI array that is currently promoted under joint efforts among China,Japan and *** aims at forming a joint VLBI Network by combining a large number of radio telescopes distributed over East Asian *** the combination of the Korean VLBI Network(KVN) and the VLBI Exploration of Radio Astrometry(VERA) into Ka VA,further expansion with the joint array in East Asia is actively *** we report the first imaging results(at 22 and 43 GHz) of bright radio sources obtained with Ka VA connected to Tianma 65-m and Nanshan 26-m Radio Telescopes in *** test the EAVN imaging performance for different sources,we observed four active galactic nuclei(AGN) having different brightness and *** a result,we confirmed that the Tianma 65-m Radio Telescope(TMRT) significantly enhances the overall array sensitivity,a factor of 4 improvement in baseline sensitivity and 2 in image dynamic range compared to the case of Ka VA *** addition of the Nanshan 26-m Radio Telescope(NSRT) further doubled the east-west angular *** the resulting high-dynamic-range,high-resolution images with EAVN(Ka VA+TMRT+NSRT),various fine-scale structures in our targets,such as the counter-jet in M87,a kink-like morphology of the 3 C 273 jet and the weak emission in other sources are successfully *** demonstrates the powerful capability of EAVN to study AGN jets and to achieve other science goals in *** expansion of EAVN will further enhance the angular resolution,detection sensitivity and frequency coverage of the network.

关键词： galaxies:active galaxies:jets instrumentation:interferometers radio continuum:galaxies

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