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云南省淡水螺广州管圆线虫感染情况调查分析

动物医学进展 2025年第1期46卷 123-128页

作者：董路段博芳杨建发杨红梅李坤马洲董星和李永华邹丰才云南省动物疫病预防控制中心云南昆明650201 云南农业大学动物医学院云南昆明650201 景洪市勐龙镇农业农村发展服务中心云南景洪666112 保山市动物卫生监督所云南保山678000 武定县动物疫病预防控制中心云南武定651600

为了查明云南省淡水螺广州管圆线虫感染情况和分布特点,从野外和农贸市场采集5种螺共4502份,取其肌肉用组织压片法镜检广州管圆线虫幼虫,再提取组织DNA,采用PCR扩增广州管圆线虫ITS基因。镜检发现,在福寿螺中发现广州管圆线虫第Ⅲ期幼虫... 详细信息

为了查明云南省淡水螺广州管圆线虫感染情况和分布特点,从野外和农贸市场采集5种螺共4502份,取其肌肉用组织压片法镜检广州管圆线虫幼虫,再提取组织DNA,采用PCR扩增广州管圆线虫ITS基因。镜检发现,在福寿螺中发现广州管圆线虫第Ⅲ期幼虫;PCR扩增显示:5份样品为广州管圆线虫阳性,总阳性率为0.111%(5/4502);不同地区间,昆明市阳性率最高(0.231%,4/1734),德宏州(0.221%,1/453)次之;不同淡水螺种类中,福寿螺阳性率为0.192%(4/2081),环棱螺阳性率为0.160%(1/624),其余3种螺未检出;不同采样环境下,农贸市场阳性率为0.192%(4/2083),野外环境阳性率为0.041%(1/2419)。不同螺种类和采样环境感染率有统计学意义(P<0.05)。研究结果获悉了云南省部分淡水螺广州管圆线虫的感染情况,为云南省广州管圆线虫病的防控提供了重要基础数据。

关键词：淡水螺广州管圆线虫 ITS基因感染

Tighter Constraints of Multiqubit Entanglement

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Communications in Theoretical Physics 2019年第5期71卷 545-554页

作者： Long-mei yang Bin Chen Shao-Ming Fei Zhi-Xi Wang School of Mathematical Sciences Capital Normal UniversityBeijing100048China College of Mathematical Science Tianjin Normal UniversityTianjin300387China Max-Planck-Institute for Mathematics in the Sciences 04103LeipzigGermany

Monogamy and polygamy relations characterize the distributions of entanglement in multipartite *** provide classes of monogamy and polygamy inequalities of multiqubit entanglement in terms of concurrence, entanglement of formation, negativity, Tsallis-q entanglement, and Rényi-α entanglement, respectively. We show that these inequalities are tighter than the existing ones for some classes of quantum states.

关键词： monogamy relation polygamy relation entanglement measure

Pancreatic tuberculosis mimicking pancreatic carcinoma during anti-tuberculosis therapy:A case report

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World Journal of Clinical Cases 2014年第5期2卷 167-169页

作者： Yan-Jia yang Ya-Xin Li Xiao-Qin Liu mei yang Kai Liu Center for Infectious Disease West China HospitalSichuan University

Pancreatic tuberculosis(TB) is a rare condition,even in immunocompetent hosts.A case is presented of pancreatic TB that mimicked pancreatic head carcinoma in a 40-year-old immunocompetent male *** patient was admitted to our hospital after suffering for nine days from epigastralgia and obstructive *** tomography revealed a pancreatic mass that mimicked a pancreatic head *** patient had undergone an operation four months prior for thoracic TB and was undergoing anti-TB therapy.A previous abdominal ultrasound was unremarkable with the exception of gallbladder steroid *** patient underwent surgery due to the progressive discomfort of the upper abdomen and a mass that resembled a pancreatic malignancy.A biopsy of the pancreas and lymph nodes was performed,revealing TB *** patient received a cholecystostomy tube and recovered after being administered standard anti-TB therapy for 15 *** case is reported to emphasize the rarecontribution of pancreatic TB to pancreatic masses and obstructive jaundice.

关键词： Anti-tuberculosis therapy Pancreatic head carcinoma Pancreatic tuberculosis Pancreatic mass Tube cholecystostomy

Development of short prototype of dual aperture quadrupole magnet for CEPC ring

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Nuclear Science and Techniques 2023年第7期34卷 148-158页

作者： mei yang Fu-San Chen Ya-Feng Wu Zhuo Zhang Bao-Gui Yin Bin Na Zhan-Jun Zhang Institute of High Energy Physics Chinese Academy of SciencesBeijing 10049China Key Laboratory of Particle Acceleration Physics and Technology Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Beijing HE-Racing Technology Co. Ltd.Beijing 1000049China

Main quadrupole magnets are critical for the Circular Electron and Positron Collider(CEPC)and are specifically designed as dual aperture quadrupole(DAQ)***,the field crosstalk between the two apertures presents *** the CEPC will work at four beam energies of Z,W,Higgs and ttbar mode,the DAQ magnets will operate at four field gradients spanning from 3.18 to 12.63 T/*** first short quadrupole magnet prototype with the bore diameter of 76 mm and magnetic length of 1.0 m revealed the problems of large magnetic field harmonics and a magnetic center shift within the beam energy ***,a compensation method was proposed in this work to solve the field crosstalk *** adjusting the gap height at the middle of the two apertures,the field harmonics and magnetic center shift are significantly *** optimization,the short prototype was modified using a new *** field simulations are validated from the magnetic measurement ***,the multipole field meets the requirements of the four beam *** detailed magnetic field optimization,field harmonics adjustment,and measurement results are presented herein.

关键词： Dual aperture magnets Field measurements Crosstalk effect Quadrupole magnet Field harmonics CEPC

Study on the Relationship Between the Ploidy Level of Microspore-Derived Plants and the Number of Chloroplast in Stomatal Guard Cells in Brassica oleracea

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Agricultural Sciences in China 2009年第8期8卷 939-946页

作者： YUAN Su-xia,LIU Yu-mei,FANG Zhi-yuan,yang Li-mei,ZHUANG Mu,ZHANG yang-yong and SUN Pei-tian Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,P.R.China [a]Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 P. R. China

The relationship between the ploidy level of microspore-derived plants and chloroplast number in stomatal guard cells was studied in cabbage, broccoli, and Chinese kale. In the experiment, distribution statistics analysis and t-test were used to perform statistical analysis on chloroplast number of different ploidy level in those stomatal guard cells mentioned above, and morphology identifying and chromosome counting were used to test accuracy of counting chloroplast number in stomatal guard cells. The chloroplast average number in stomatal guard cells was very similar among the different leaf positions on the same plant and among significantly among the different ploidy the different locations in the same stoma in the same variety. All the leaf, while the chloroplast number varied distributions of the chloroplast number in different ploidy stoma were normal distribution fitted. A correlation has been established between ploidy and chloroplast number in the stomatal guard cells. In every single stoma of microspore-derived plants, the chloroplast number for a haploid should not be more than 10, diploids 11 to 15, and polyploids more than 15. The accuracy of this method for identification of different ploidy plants was 93.93%. Furthermore, the accuracy of this method was reliable and did not vary with the plants growth conditions. Therefore, the chromosome ploidy of plants derived from microspore culture in cabbage, broccoli, and Chinese kale can be identified by simply counting the chloroplast number in stomatal guard cells.

关键词： Brassica oleracea stomatal guard cells chloroplast number identification of ploidy

Chewing substances with or without tobacco and risk of cardiovascular disease in Asia:a meta-analysis

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第9期11卷 681-689页

作者： Li-na ZHANG Yun-mei yang Zhe-rong XU Qi-feng GUI Qin-qing HU Department of Gerontology the First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310003 China Department of Nephrology the First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310003 China

Objective:To assess whether people who ever use any form of chewing substance in Asia are at increased risk of cardiovascular disease(CVD).Methods:PubMed and ISI Web of Science were searched for relevant studies,with no limitation on language or study *** were included if they provided quantitative estimate of the association between ever use of chewing substance and the occurrence of *** authors independently implemented inclusion criteria,abstracted study characteristics,and performed *** relative risks were estimated on the basis of a random effect *** used Q statistic and Egger's test to examine heterogeneity across studies and potential publication bias,***:Eight eligible studies were *** relative risk of CVD for ever using chewing substances with or without tobacco was 1.26(95% confidence interval(CI) 1.12-1.40),which was unchanged when restricted to cohort studies [1.25(1.08-1.42)] or cohort studies in Taiwan [1.31(1.12-1.51)].The summary relative risk for ischemic heart disease was 1.27(1.02-1.52),and was lowered to 1.26(0.85-1.67) after exclusion of a cross-sectional *** overall relative risk for cerebrovascular disease was 1.32(1.08-1.56).On the basis of the Taiwan data,the summary relative risk of CVD for betel(Areca catechu) chewing was 1.30(1.17-1.44).Data on dose-response were limited to betel chewing in Taiwan,suggesting a relationship between risk of CVD and cumulative *** large cohorts in Taiwan reported a greater risk of CVD with betel chewing than with ***:An association was detected between betel chewing with or without tobacco and the risk of *** chewing may impose a greater CVD risk than *** effort is needed in developing betel chewing cessation *** relationship between betel chewing and subgroups of CVD requires further investigation.

关键词： Cardiovascular disease Areca catechu Betel quid Chewing tobacco Relative risk Meta-analysis

Clinical Characteristics of H1N1 Influenza A-Associated Mild Encephalopathy with Reversible Splenial Lesion: 4 Pediatric Cases

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Current Medical Science 2021年第4期41卷 815-820页

作者： Xu-fang LI Bin AI Jia-wei YE Li-mei TAN Hua-mei yang Chun-xiao FANG Lan-hui SHE Yi XU Department of Infectious Disease Guangzhou Women and Children's Medical CenterGuangzhou 510000China

Objective Mild encephalopathy with reversible splenial lesion(MERS)is associated with a variety of infections and anti-epileptic drug *** we report the clinical characteristics of H1N1 influenza A-associated MERS based on our experience of four pediatric *** A detailed retrospective analysis of four patients with H1N1 influenza A-associated MERS was performed at Guangzhou Women and Children’s Medical *** All patients exhibited mild influenza-like illness and *** patients presented with a new-onset seizure with fever after 5 years of age.75%patients had altered mental *** all four patients,influenza A(H1N1)viral RNA was detected in throat swab specimens at least *** magnetic resonance images revealed similar ovoid lesions in the corpus callosum,mainly in the splenium and for one patient in the splenium and genu of the corpus *** one patient had an abnormal electroencephalogram *** and protein in the cerebrospinal fluid were normal in all *** patients received oseltamivir and one patient received intravenous *** a result,all patients fully recovered after 2 months and showed no neurologic sequelae at *** This case series provides insight towards clinical features of H1N1 influenza A-associated MERS.

关键词： mild encephalopathy with reversible splenial lesion H1N1 influenza A children corpus callosum encephalopathy

Sclerosing stromal tumor of the ovary with masculinization,meig’s syndrome and CA125 elevation in an adolescent girl:A case report

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World Journal of Clinical Cases 2020年第24期8卷 6364-6372页

作者： Qian Chen Yi-Hong Chen Hui-Yun Tang yang-mei Shen Xin Tan Obstetrics and Gynecology Department West China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Key Laboratory of Birth Defects and Related Diseases of Women and Children Sichuan UniversityMinistry of EducationChengdu 610041Sichuan ProvinceChina Department of Pathology West China Second University HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Sclerosing stromal tumor (SST) is an extremely rare sex cord stromal tumor of theovary. It was first reported and named in 1973. These tumors typically presentwith pelvic/abdominal pain and tenderness, a mass, and/or abnormal menses,but rarely present with masculinity in children and adolescents. Only 2 cases ofthese tumors have been reported in premenarchal girls, who demonstratedhormonal activity, with a history of the development of a virilizing female due tohyperandrogenism. Here, we report a case of a giant SST with obviousmasculinity combined with meig’s syndrome and CA125 *** SUMMARY A 17-year-old female presented with a 7-year history of the development ofmasculinity and a 2-year history of amenorrhea. She had hirsutism, acne, obviouslaryngeal prominence, and voice deepening. Physical examination showed a malesuprapubic hair pattern and a 4.0 cm × 1.5 cm enlarged clitoris. Laboratory testsshowed that the testosterone level was > 15.00 ng/mL (normal range: 0.14-0.76ng/mL), and androstenedione level was > 10.00 ng/mL (normal range: 0.3-3.3ng/mL). A computed tomography scan of the abdomen and pelvis was carriedout and showed a large, solid and cystic, partly calcified pelvic mass in the rightovary measuring 27.1 cm × 20.0 cm × 11.0 cm, 15 cm above the umbilicus (to thelevel of the upper part of L1). Intraoperative findings at laparotomy revealed alarge tumor arising from the right ovary. Approximately, 500 mL of pale-yellow clear liquid was found in the pelvic cavity. A right salpingo-oophorectomy wasperformed. Microscopic examination and immunohistochemical staining of thesurgical specimen showed an SST of the *** This report is remarkable as our patient was not only diagnosed with an SST ofthe ovary, which is extremely rare in this age group, but was the largest and mostobvious reported patient with this tumor who presented with ***, gynecologists should be aware of this potential complication inadolescent

关键词： Ovarian tumor Sclerosing stromal tumor Androgens Adolescent Virilization Case report Sex cord-stromal tumor

Electrocatalytic oxidation of methanol at platinum electrode modified with Eu-Fe cyanide-bridged binuclear complexes

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Chinese Chemical Letters 2010年第3期21卷 337-340页

作者： Ma, Yong Jun Pan, Yu Ying Wang, Wei Feng yang, mei Xia Zhou, Min NW Normal Univ Coll Chem & Chem Engn Key Lab Ecoenvironm Related Polymer Mat Minist EducKey Lab Polymer Mat Gansu Prov Lanzhou 730070 Peoples R China

The electrocatalytic oxidation of methanol at the platinum electrode modified with Eu-Fe cyanide-bridged binuclear complexes (Eu-Fe film) was investigated for the first time by cyclic *** with the bare platinum electrode,the results showed that the modified electrode had excellent electrocatalytic activity for the oxidation of methanol;the oxidation peak potential shifted more negatively and the peak current increased about twenty *** electrooxidation of methanol at the modified elect...

关键词： Methanol Electrocatalysis Cyanide-bridged binuclear complexes Europium Chemically modified electrode