检索结果-南通市图书馆

World Journal of Clinical Cases 2023年第7期11卷 1615-1625页

作者： Ni Chen Guang-Xian Miao liang-qin Peng Yun-Hang Li Juan Gu Ying He Tao Chen Xiao-Yun Fu Zhou-Xiong Xing Department of Critical Care Medicine Affiliated Hospital of Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina Department of Ultrasound Affiliated Hospital of Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina Department of Cardiology Affiliated Hospital of Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina Department of Pharmacy Affiliated Hospital of Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina

BACKGROUND Pacemaker lead-induced heart perforation is a rare but life-threatening complication of pacemaker implantation,and timely diagnosis remains a challenge for ***,we report a case of pacemaker lead-induced cardiac perforation rapidly diagnosed by a“bow-and-arrow”sign on point-of-care ultrasound(POCUS).CASE SUMMARY A 74-year-old Chinese woman who had undergone permanent pacemaker implantation 26 d before suddenly developed severe dyspnea,chest pain,and *** patient had received emergency laparotomy for an incarcerated groin hernia and was transferred to the intensive care unit 6 d *** tomography was not available due to unstable hemodynamic status,so POCUS was performed at the bedside and revealed severe pericardial effusion and cardiac *** pericardiocentesis yielded a large volume of bloody pericardial *** POCUS by an ultrasonographist revealed a unique“bow-and-arrow”sign indicating right ventricular(RV)apex perforation by the pacemaker lead,which facilitated the rapid diagnosis of lead *** the persistent drainage of pericardial bleeding,urgent off-pump open chest surgery was performed to repair the ***,the patient died of shock and multiple organ dysfunction syndrome within 24 h *** addition,we also performed a literature review on the sonographic features of RV apex perforation by *** POCUS enables the early diagnosis of pacemaker lead perforation at the bedside.A step-wise ultrasonographic approach and the“bow-and-arrow”sign on POCUS are helpful for rapid diagnosis of lead perforation.

关键词： Point-of-care ultrasound Heart perforation Pacemaker lead Cardiac pacemaker Review Case report

Knockout of OsSPL10 confers enhanced glufosinate resistance in rice

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Communications 2024年第2期5卷 7-10页

作者： Jin-Qiu Xia qin-Yu liang Da-Yu He Zheng-Yi Zhang Jie Wu Jing Zhang Ping-Xia Zhao Zi-Sheng Zhang Cheng-Bin Xiang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China

Dear Editor,Rice(Oryza sativa L.)is one of the world’s major food crops,feeding more than half of the global *** reduce labor and production costs,direct seeding is becoming popular for rice cultivation,but weeds have become a serious problem(Jin et al.,2022).Chemical herbicides are one of the most effective ways to control ***,the development of herbicide-resistant rice has great significance for modern rice production.

关键词： crops population. weed

Dose Distribution Verifications of IMRT for NPC

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Huazhong University of Science and Technology(Medical Sciences) 2009年第5期29卷 673-676页

作者：李勤李良韩军梁志文 Cancer Center Union HospitalTongji Medical CollegeHuazhong University of Science and Technology

In order to explore a dose distribution verification procedure of intensity modulated radiation therapy （IMRT） for nasopharyngeal carcinoma （NPC） and establish its evaluation criteria, we performed 35 two-dimensional （2D） patient-specific IMRT verifications over the year i006. The percent of pixels passing 7 and the normalized agreement test （NAT） index were mainly used to represent the agreement between the measured and computed dose distributions with three criteria （2%/2 mm, 3%/3 mm and 5%/3 mm） as recommended in the literature. The results were that all cases passed through verifications with three criteria except that the NAT index of one case was beyond the limitation, and the three tolerance levels of 2%/2mm, 3%/3 mm and 5%/3 mm produced similar clinical verification results but led to different percent of pixels passing Y and NAT index. Our data showed that the percent of pixels passing y and the NAT index were complementary to evaluate future IMRT verifications as two significant metrics. Due to the influence of the noise and the trait of the software, we considered an IMRT plan as acceptable in case of the percent ofpixels passing y 〉95% and the NAT index 〈5 with the 5%/3 mm criteria for IMRT patient-specific quality assurance （QA）.

关键词： dose distribution dose verification intensity modulated radiation therapy

Clinical Analysis of 16 Cases with Duplex Uterus

在线全文

学校读者我要写书评

暂无评论

Journal of Reproduction and Contraception 2011年第4期22卷 217-221页

作者： Ya-ling FENG Xiao-qin liang Xiao-mao LI Department of Obstetrics and Gynecology Shenzhen Baoan People＇s Hospital Shenzhen 518101 China Department of Gynecology and Obstetrics The Third Affilitated Hospital SUN Yat-sen University Guangzhou 510630 China

Objective To explore the diagnosis and treatment of duplex uterus. Methods Totally 16 cases with duplex uterus were diagnosed and treated with hysteroscopy and laparoscopic technology simultaneously. Results Sixteen cases were finally diagnosed with hysteroscopy and B-ultrasound examination. Of the 16 cases, 12 cases underwent vaginal septum resection and hysteroscopic transcervical resection of septum （TCRS）, 2 cases underwent lysis of pelvic adhesions, vaginal septum resection and hysteroscopic transcervical resection of septum, and 2 unmarried cases underwent hysteroscopy in women with intact-hymen. All the 16 cases underwent the surgery successfully. Conclusion Hysteroscopy in combination with B-ultrasound examination is a major option for duplex uterus diagnosis, and hysteroscopic transcervical resection of septum and vaginal septum resection under B-ultrasound monitoring is the primary surgery treatment alternative for duplex uterus.

关键词： hysteroscope duplex uterus double cervix complete septate uterus

在线全文

学校读者我要写书评

暂无评论

商洛市旅游业目前存在的问题及开发对策

资源与产业 2009年第6期11卷 55-58页

作者：秦亮中国地质大学人文经管学院北京100083

陕西省已经形成了以西安为中心、关中地区为主体、陕南和陕北为两翼的旅游发展格局。长期以来,一直是"两翼薄弱,一城独大"。商洛作为陕南3市之一,部分旅游资源品级较高,并且具有较高的知名度,但旅游开发仍然十分落后。笔者对商洛市旅游... 详细信息

陕西省已经形成了以西安为中心、关中地区为主体、陕南和陕北为两翼的旅游发展格局。长期以来,一直是"两翼薄弱,一城独大"。商洛作为陕南3市之一,部分旅游资源品级较高,并且具有较高的知名度,但旅游开发仍然十分落后。笔者对商洛市旅游资源进行了简要的介绍,重点分析了目前商洛市旅游业发展中存在的问题,提出了"两带两区"的资源整合方案,并对旅游资源开发提出了相应的建议。

关键词：商洛旅游资源旅游开发

在线全文

学校读者我要写书评

暂无评论

瞬变电磁法隧道超前地质预报物理模拟

现代隧道技术 2019年第6期56卷 47-51,62页

作者：秦良张庆朝中国兵器工业北方勘察设计研究院有限公司石家庄050011 河北工程大学地球科学与工程学院邯郸056038

文章根据物理模拟相似性准则设计模型试验,采用水槽、盐水、塑料槽、铜板和铁块分别模拟围岩全空间、均匀介质、隧道空间、异常体和金属干扰体,重点研究隧道空间、金属干扰体及异常体自身对瞬变电磁法隧道超前地质预报结果的影响规律。... 详细信息

文章根据物理模拟相似性准则设计模型试验,采用水槽、盐水、塑料槽、铜板和铁块分别模拟围岩全空间、均匀介质、隧道空间、异常体和金属干扰体,重点研究隧道空间、金属干扰体及异常体自身对瞬变电磁法隧道超前地质预报结果的影响规律。试验结果表明:隧道空间只会对二次电磁响应值大小产生微弱影响,对二次电磁响应的衰减速度几乎无影响;金属干扰体的存在会严重影响探测结果,导致感应电动势增大,造成存在低阻异常体的假象;在对不同位置异常体的物理模拟试验中,感应电动势大小随着异常体与探测线圈距离的増加而呈指数衰减的规律。试验结果验证了瞬变电磁法用于隧道超前地质预报的可行性,为改进资料解释方法、提高探测精度提供了重要依据。

关键词：隧道超前地质预报瞬变电磁法隧道空间金属干扰体异常体物理模拟

4-Nitrocatechol as a novel matrix for low-molecular-weight compounds in situ detection and imaging in biological tissues by MALDI-MSI

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第6期35卷 486-490页

作者： Hualei Xu Manman Han Haiqiang Liu liang qin Lulu Chen Hao Hu Ran Wu Chenyu Yang Hua Guo Jinrong Li Jinxiang Fu Qichen Hao Yijun Zhou Jinchao Feng Xiaodong Wang Key Laboratory of Mass Spectrometry Imaging and Metabolomics(Minzu University of China) State Ethnic Affairs CommissionBeijing 100081China College of Life and Environmental Sciences Centre for Imaging&Systems BiologyMinzu University of ChinaBeijing 100081China

Low-molecular-weight(LMW)compounds are ubiquitous in living organisms and play essential roles in biological *** direct analysis of LMW compounds in biological tissues by matrix-assisted laser desorption/ionization mass spectrometry imaging(MALDI-MSI)could provide a more comprehensive understanding of their essential ***,we evaluated 4-nitrocatechol(4-NC)as a novel positive-ion matrix for enhancing in situ detection and imaging of LMW compounds from the rat liver,brain,and germinating Chinese-yew seed by *** results showed that the 4-NC possessed remarkable features,including strong ultraviolet absorption,uniform matrix crystal,excellent chemical stability,and fewer matrix-related background *** use of 4-NC led to the successful detection of 232,218,and193 LMW compounds from the three abovementioned tissue sections,***,the use of 4-NC improved the imaging quality of LMW compounds in tissue sections through MALDI-MSI and has the potential as a matrix for MALDI tissue imaging of LMW compounds.

关键词： MALDI-MSI 4-Nitrocatechol LMW compounds In situ detection Tissue imaging

Competition and monopoly of Chinese rural groundwater market:structure and determinants

在线全文

学校读者我要写书评

暂无评论

Ecological Economy 2010年第2期6卷 168-176页

作者： liang qin MI Jian-wei MA Hua WU Li-li Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101P.R.China Graduate University Chinese Academy of SciencesBeijing 100039P.R.China State Information Center Beijing 100045P.R.China College of Economics and Management South China Agricultural UniversityGuangzhou 510642P.R.China Jinshui Branch Bureau of Land and Resources Zhengzhou 450002P.R.China

China is facing severe problem of water *** sector,the main consumer of water resource,has remarkably changed its institutions on water resource deployment,due to heavy environmental *** a new and spontaneous institution,groundwater market has developed rapidly in northern China,and has impacts on waterusing behaviors and benefits of *** household survey data from Hebei and Henan in 2007,this paper attempts to pin down the development and operating of groundwater market in rural *** focus on the monopoly and competition in the *** analysis reveals that Chinese farmers are trying to make rational decision when they compete with others in groundwater *** general,monopoly is not fierce in Chinese rural groundwater market,with great variations among different villages and even different tubewells within one *** costs,regulation and the density of tubewells are the main determinants that affect monopoly level of groundwater *** make water market benefit more and more farmers of low income,corresponding policies are needed to modify its development in the future.

关键词： Groundwater market Cometition Monopoly Determinants

Seroprevalence and risk factors of Chlamydia abortus infection in black bone sheep and goats in Yunnan Province,southwestern China

在线全文

学校读者我要写书评

暂无评论

Seroprevalence and risk factors of Chlamydia abortus infecti...