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Delivery room resuscitation and short-term outcomes of extremely preterm and extremely low birth weight infants: a multicenter survey in North China

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Chinese Medical Journal 2021年第13期134卷 1561-1568页

作者： Shuai-Jun li Qi Feng Xiu-ying Tian ying Zhou Yong Ji Yue-Mei li Shu-Fen Zhai wei Guo Fang Zhang Rong-Xiu zheng Hai-ying He Xia liu Jun-yi Wang Hua Mei Hong-Yun Wang Hua Xie Chao-Mei Zeng li Ma ping-ping Zhang Jin-Yu li Xiao-ying Wang li-Hua li Hong Cui Shu-Lan Yang Lu Chen Xiao-Hong Gu Yan-Ju Hu Sheng-Shun Que li-Xia Sun Ming Yang Wen-li Zhao Qiu-Yan Ma Hai-Juan Wang Jiu-ye Guo Department of Pediatrics Peking University First HospitalBeijing 100034China Department of Neonatology Tianjin Central Hospital of Gynecology ObstetricsTianjin 300100China Department of Pediatrics Peking University Third HospitalBeijing 100191China Neonatal Intensive Care Unit Children's Hospital of ShanxiTaiyuanShanxi 030031China Department of Neonatology The Second Hospital of Hebei Medical UniversityShijiazhuangHebei 050000China Department of Neonatology Handan Central HospitalHandanHebei 056004China Department of Neonatology Xingtai People's HospitalXingtaiHebei 054031China Department of Neonatology Tangshan Maternal and Child Health HospitalTangshanHebei 071023China Department of Pediatrics Tianjin Medical University General HospitalTianjin 300052China Department of Pediatrics Baogang Third Hospital of HongCi GroupBaotouInner Mongolia Autonomous Region 014010China Department of Neonatology Affiliated Hospital of Chengde Medical UniversityChengdeHebei 067000China Department of Pediatrics The First Hospital of Tsinghua UniversityBeijing 100016China Department of Neonatology The Affiliated Hospital of Inner Mongolia Medical UniversityHohhotInner Mongolia Autonomous Region 010050China Department of Neonatology Inner Mongolia Maternal and Child Health HospitalHohhotInner Mongolia Autonomous Region 010020China Department of Neonatology Affiliated Hospital of Chifeng UniversityChifengInner Mongolia Autonomous Region 024005China Department of Pediatrics Peking University People's HospitalBeijing 100044China Department of Neonatology Hebei Children's HospitalShijiazhuangHebei 050000China Department of Neonatology Tianjin First Central HospitalTianjin 300384China Department of Pediatrics Peking Union Medical College HospitalBeijing 100730China Department of Neonatology Children's Hospital Capital Institute of PediatricsBeijing 100020China Department of Pediatrics Beijing Luhe Hospital.Capital Medical UniversityBeijing 101149China Department of Pediatrics Beijing Fri

Background:Delivery room resuscitation assists preterm infants,especially extremely preterm infants(EPI)and extremely low birth weight infants(ELBWI),in breathing support,while it potentially exerts a negative impact on the lungs and outcomes of preterm *** study aimed to assess delivery room resuscitation and discharge outcomes of EPI and ELBWI in ***:The clinical data of EPI(gestational age[GA]weight[BW]livery room resuscitation and risk factors for delivery room intubation(DRI).The secondary outcomes were survival rates,incidence of bronchopulmonary dysplasia(BPD),and risk factors for ***:A cohort of 952 preterm infants were *** incidence of DRI,chest compressions,and administration of epinephrine was 55.9%(532/952),12.5%(119/952),and 7.0%(67/952),*** analysis revealed that the risk factors for DRI were GAlivery room(OR,0.273;95%CI,0.160–0.467)were preventive factors for BPD(all Plivery room resuscitation and management of respiratory complications are imperative during early management of the health of EPI and

关键词： Extremely preterm Extremely low birth weight infants Delivery room resuscitation Survival rate BPD Risk factors

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The DIRECT consortium and the REST-meta-MDD project:towards neuroimaging biomarkers of major depressive disorder

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Psychoradiology 2022年第1期2卷 32-42页

作者： Xiao Chen Bin Lu Hui-Xian li Xue-ying li Yu-wei Wang Francisco Xavier Castellanos li-ping Cao Ning-Xuan Chen wei Chen Yu-Qi Cheng Shi-Xian Cui Zhao-Yu Deng yi-Ru Fang Qi-Yong Gong Wen-Bin Guo zheng-Jia-yi Hu li Kuang Bao-Juan li Le li Tao li Tao lian yi-Fan liao Yan-Song liu Zhe-Ning liu Jian-ping Lu Qing-Hua Luo Hua-Qing Meng Dai-Hui Peng Jiang Qiu Yue-Di Shen Tian-Mei Si Yan-Qing Tang Chuan-Yue Wang Fei Wang Hua-Ning Wang Kai Wang Xiang Wang ying Wang Zi-Han Wang Xiao-ping Wu Chun-Ming Xie Guang-Rong Xie Peng Xie Xiu-Feng Xu Hong Yang Jian Yang Shu-Qiao Yao Yong-Qiang Yu Yong-Gui Yuan Ke-rang Zhang wei Zhang Zhi-Jun Zhang Jun-Juan Zhu Xi-Nian Zuo jing-ping Zhao Yu-Feng Zang the DIRECT consortium Chao-Gan Yan CAS Key Laboratory of Behavioral Science Institute of PsychologyChinese Academy of SciencesBeijing 100101China International Big-Data Center for Depression Research Chinese Academy of SciencesBeijing 100101China Magnetic Resonance Imaging Research Center Institute of PsychologyChinese Academy of SciencesBeijing 100101China Department of Psychology University of Chinese Academy of SciencesBeijing 100049China Sino-Danish College University of Chinese Academy of SciencesBeijing 101408China Sino-Danish Center for Education and Research Graduate University of Chinese Academy of SciencesBeijing 101408China Department of Child and Adolescent Psychiatry NYU Grossman School of MedicineNew YorkNY 10016USA Nathan Kline Institute for Psychiatric Research OrangeburgNew YorkNY 10962USA 9Affiliated Brain Hospital of Guangzhou Medical UniversityGuangzhou 510370China Capital Normal University Beijing 100089China Department of Psychiatry Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310020ZhejiangChina Department of Psychiatry First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650032China Shanghai Mental Health Center Shanghai Jiao Tong University School of MedicineShanghai 200030China Huaxi MR Research Center(HMRRC) Department of RadiologyWest China Hospital of Sichuan UniversityChengduSichuan 610044China Research Unit of Psychoradiology Chinese Academy of Medical SciencesChengduSichuan 610052China Department of Psychiatry and National Clinical Research Center for Mental DisordersThe Second Xiangya Hospital of Central South UniversityChangsha 410011HunanChina Department of Psychiatry The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400042China Xijing Hospital of Air Force Military Medical University Xi’anShaanxi 710032China Center for Cognitive Science of Language Beijing Language and Culture UniversityBeijing 100083China Affiliated Mental Health Center&Hangzhou Seventh People’s Hospital Zhejiang University School of

Despite a growing neuroimaging literature on the pathophysiology of major depressive disorder(MDD),repro-ducible findings are lacking,probably reflecting mostly small sample sizes and heterogeneity in analytic *** address these issues,the Depression Imaging REsearch ConsorTium(DIRECT)was *** REST-meta-MDD project,pooling 2428 functional brain images processed with a standardized pipeline across all participating sites,has been the first effort from *** this review,we present an overview of the moti-vations,rationale,and principal findings of the studies so far from the REST-meta-MDD *** from the first round of analyses of the pooled repository have included alterations in functional connectivity within the default mode network,in whole-brain topological properties,in dynamic features,and in functional *** well-powered exploratory observations have also provided the basis for future longitudinal hypothesis-driven *** these fruitful explorations,DIRECT has proceeded to its second stage of data sharing that seeks to examine ethnicity in brain alterations in MDD by extending the exclusive Chinese original sample to other ethnic groups through international collaborations.A state-of-the-art,surface-based preprocessing pipeline has also been introduced to improve *** images from patients with bipolar disorder and schizophrenia will be included to identify shared and unique abnormalities across diag-nosis *** addition,large-scale longitudinal studies targeting brain network alterations following antidepressant treatment,aggregation of diffusion tensor images,and the development of functional magnetic resonance imaging-guided neuromodulation approaches are *** these endeavours,we hope to accelerate the translation of functional neuroimaging findings to clinical use,such as evaluating longitudinal effects of antidepressant medications and developing individualized

关键词： major depressive disorder DIRECT R-fMRI database neuroimaging

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Expert Consensus on Nutritional Support for Children with Congenital Heart Disease(2023 Edition)

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Congenital Heart Disease 2023年第6期18卷 571-593页

作者： Xuming Mo wei Cai Jirong Qi Zhuoming Xu ying Wang weihui Yan Shoujun li Nianguo dong Xinxin Chen Jinfen liu Qiang Shu Jimei Chen Haibo Zhang Hao Zhang Quansheng Xing Qi An Xiaofeng li Xu Wang Yan He Junwu Su Taibing Fan Teng Ming weibing Tang li Hong jinghao zheng Ming ye Guocheng Sun yiqun Ding liang Tao yifeng Yang Zhongshi Wu Hua Cao Qiang Wang Keming Yang libing Zhang ping Wen Yanqin Cui Bo Zhai Yong Zou Qingya Tang Rui Chen Chun Wu Zhiyu Feng Caixia liu Yaping Mi Rufang Zhang Ke lin Xin li Mingan Pi Xiangming Fan Shanshan Shi Peng huang zhengxia Pan Jiafeng Qi Renwei Chen Shuguang Tao Yaqin Shu Huifeng Zhang Lan Jiang Min Da Nishant Patel liang Hu Cardiac Surgery Group of Pediatric Surgery Society of Chinese Medical Association and Parenteral Enteral Nutrition Society of Chinese Medical Association Department of Cardiothoracic Surgery Children’s Hospital of Nanjing Medical UniversityNanjing210008China Department of Pediatric Surgery and Nutrition Xinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200092China Department of Cardiothoracic Surgery Shanghai Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China Division of Pediatric Gastroenterology and Nutrition Xinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200092China Pediatric Cardiac Surgery Center Fuwai HospitalNational Centre for Cardiovascular DiseasesState Key Laboratory of Cardiovascular DiseaseChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100037China Department of Cardiovascular Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China Cardiovascular Center Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhou510623China Department of Cardiac Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou310052China Department of Cardiovascular Surgery Guangdong Cardiovascular InstituteGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesSouthern Medical UniversityGuangzhou519041China Heart Center and Shanghai Institue of Pediatric Congenital Heart Disease Shanghai Children’s Medical CenterNational Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China Heart Center Qingdao Women and Children’s HospitalQingdao266034China Department of Cardiovascular Surgery West China HospitalSichuan UniversityChengdu610041China Department of Cardiac Surgery Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijing100045China Department of Pediatric Intensive Care Unit Fuwai HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100037China Depar

The second edition of the expert consensus on pediatric nutrition was formed based on a global update of pedia-tric nutrition guidelines or consensus worldwide,the management of congenital heart disease,and the results of multi-center clinical nutrition research for congenital heart disease following theﬁrst Chinese consensus edition of *** consensus was also shaped by the results of three discussion sessions and two questionnaires con-ducted by the 13-member collaboration *** process was informed by both clinical guidelines and expert *** quality of literature,both in English and Chinese,and the level of recommendations were evaluated using the Grading of Recommendations Assessment,Development,and Evaluations(GRADE)system.

关键词： Congenital heart disease nutrition enteral parenteral expert consensus

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Preoperative surgical planning for intracranial meningioma resection by virtual reality

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Chinese Medical Journal 2012年第11期125卷 2057-2061页

作者： TANG Hai-liang SUN Hua-ping GONG ye MAO ying WU jing-song ZHANG Xiao-luo XIE Qing XIE li-qian zheng Ming-zhe WANG Dai-jun ZHU Hong-da TANG wei-jun FENG Xiao-yuan CHEN Xian-cheng ZHOU liang-fu Department of Neurosurgery Huashan Hospital Shanghai 200040 China Department of Radiology Huashan Hospital Shanghai 200040 China

Background The Dextroscope system by Volume Interactions （Singapore） had been applied to minimally invasive neurosurgery in many units. This system enables the neurosurgeon to interact intuitively with the three-dimensional graphics in a direct manner resembling the way one communicates with the real objects. In the paper, we explored its values in pre-operation surgical planning for intracranial meningiomas resection. Methods Brain computed tomography （CT）, magnetic resonance imaging （MRI）, and magnetic resonance venography （MRV） were performed on 10 patients with parasagittal and falcine meningiomas located on central groove area; brain CT, MRI and magnetic resonance angiography （MIRA） were performed on 10 patients with anterior skull base meningiomas and 10 patients with sphenoid ridge meningiomas. All these data were transferred to Dextroscope virtual reality system, and reconstructed. Then meningiomas, skull base, brain tissue, drainage vein and cerebral arteries were displayed within the system, and their anatomic relationships were evaluated. Also, the simulation operations were performed. Results For parasagittal and falcine meningiomas, the relationships of tumor with drainage vein and superior sagittal sinus were clearly displayed in the Dextroscope system. For anterior skull base and sphenoid ridge meningiomas, the relationships of tumor with bilateral internal carotid arteries, anterior cerebral arteries, middle cerebral arteries and skull base were vividly displayed within the virtual reality system. Surgical planning and simulation operation of all cases were performed as well. The real operations of all patients were conducted according to the simulation with well outcomes. Conclusions According to the virtual reality planning, neurosurgeons could get more anatomic information about meningioma and its surrounding structures, especially important vessels, and choose the best approach for tumor resection, which would lead to better prognosis for patient

关键词： virtual reality, Dextroscope system, intracranial meningioma surgical planning

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The Applications and Practice of Front Ultra Fast Cooling Technology in C-Mn Steel

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Journal of Iron and Steel Research(International) 2011年第S1期18卷 576-580页

作者： ZUO Jun 1,liu Yong 2,ZHANG Kai-hua 1,ye Xiao-yu 1,li wei-ping 2,huang Xu-jing 2 (1.PanGang Group Research Institute Co,Ltd,Chengdu,611731,Sichuan,China 2.PanGang Group Panzhihua Steel & Vanadium Co,Ltd,Panzhihua,617067,Sichuan,China) PanGang Grp Res Inst Co Ltd Chengdu 611731 Sichuan Peoples R China PanGang Grp Panzhihua Steel & Vanadium Co Ltd Panzhihua 617067 Sichuan Peoples R China

Ultra Fast Cooling is a new technology which used to control the hot-rolling strip cooling in recent years on the international *** can achieve fast and accurate temperature control in the hot-rolled strip production process to obtain corresponding transformation microstructure and ideal mechanical *** article describes the technical principle and layout of ultra fast cooling in hot-rolled as well as cooling *** the effect of front ultra fast cooling technology in C-Mn steel and obtained consequent on the industrial produced low-cost Q345 hot rolled steel in Panzhihua Iron and Steel.

关键词： ultra fast cooling controlled rolling and controlled cooling Q345 low-cost

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Author Correction: Neuroprotectants attenuate hypobaric hypoxia-induced brain injuries in cynomolgus monkeys

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Zoological Research 2021年第2期42卷 250-251页

作者： Pei Zhang Jie-Si Chen Qi-ye li Long-Xiang Sheng yi-Xing Gao Bing-zheng Lu Wen-Bo Zhu Xiao-Yu Zhan Yuan li Zhi-Bing Yuan Gang Xu Bi-Tao Qiu Min Yan Chun-Xue Guo You-Qiong Wang yi-Jun huang jing-Xia Zhang Fu-Yu liu Zhong-wei Tang Sui-Zhen lin David NCooper Huan-Ming Yang Jian Wang Yu-Qi Gao wei yin Guo-Jie Zhang Guang-Mei Yan State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China BGI-Shenzhen ShenzhenGuangdong 518083China Section for Ecology and Evolution Department of BiologyUniversity of CopenhagenCopenhagen DK-2100Denmark Department of Pharmacology Zhongshan School of MedicineSun Yat-Sen UniversityGuangzhouGuangdong 510080China Institute of Medicine and Hygienic Equipment for High Altitude Region College of High Altitude Military MedicineThird Military Medical UniversityChongqing 400038China Key Laboratory of High Altitude Medicine of People's liberation Army Chongqing 400038China Key Laboratory of High Altitude Environmental Medicine Third Military Medical UniversityMinistry of EducationChongqing 400038China School of Pharmaceutical Sciences Sun Yat-Sen UniversityGuangzhouGuangdong 510006China Guangzhou Cellprotek Pharmaceutical Co.Ltd. GuangzhouGuangdong 510663China Institute of Medical Genetics School of MedicineCardiff UniversityCardiff CF144XNUK James D.Watson Institute of Genome Sciences HangzhouZhejiang 310058China Department of Biochemistry Zhongshan School of MedicineSun Yat-Sen UniversityGuangzhouGuangdong 510080China Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingYunnan 650223China China National Genebank BGI-ShenzhenShenzhenGuangdong 518120China

Open Access This is an open-access article distributed under the terms of theCreative Commons Attribution Non-Commercial license(http:1/***/licenses/by-nc/4.0/).which permits unrestrictednon-commercial use,*** reprodu... 详细信息

关键词： Open Creative Access

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Prognostic significance of regional lymphadenectomy in T1b gallbladder cancer:Results from 24 hospitals in China

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World Journal of Gastrointestinal Surgery 2021年第2期13卷 176-186页

作者： Tai Ren Yong-Sheng li Xue-yi Dang Yang li Zi-Yu Shao Run-Fa Bao yi-Jun Shu Xu-An Wang Wen-Guang Wu Xiang-Song Wu Mao-Lan li Hong Cao Kun-Hua Wang Hong-Yu Cai Chong Jin Hui-Han Jin Bo Yang Xiao-Qing Jiang Jian-Feng Gu Yun-Fu Cui Zai-Yang Zhang Chun-Fu Zhu Bei Sun Chao-liu Dai lin-Hui zheng jing-Yu Cao Zhe-wei Fei Chang-Jun liu Bing li Jun liu ye-Ben Qian yi Wang Ya-wei Hua Xi Zhang Chang liu Wan-yee Lau ying-Bin liu Department of General Surgery Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Shanghai Key Laboratory of Biliary Tract Disease Research Shanghai 200092China Department of Biliary-Pancreatic Surgery Renji Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China State Key Laboratory for Oncogenes and Related Genes Shanghai 200127China Department of General Surgery Shanxi Provincial Cancer HospitalTaiyuan 030013Shanxi ProvinceChina Department of GI Surgery China-Japan Union Hospital of Jilin UniversityChangchun 130033Jilin ProvinceChina Department of Gastrointestinal and Hernia Surgery The First Affiliated Hospital of Kunming Medical UniversityKunming 650031Yunnan ProvinceChina Department of Hepatobiliary Surgery Nantong Tumor HospitalNantong 226361Jiangsu ProvinceChina Department of General Surgery Taizhou Municipal HospitalTaizhou 318000Jiangsu ProvinceChina Department of Hepatobiliary Surgery Wuxi Second People's HospitalWuxi 214002Jiangsu ProvinceChina Department of General Surgery The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325015Zhejiang ProvinceChina Department of Biliary Tract Surgery Second Military Medical UniversitySecondary Military Medical UniversityShanghai 200438China Department of General Surgery Changshu No.1 People’s Hospital Affiliated to Soochow UniversityChangshu 215500Jiangsu ProvinceChina Department of Hepatopancreatobiliary Surgery Second Affiliated Hospital of Harbin Medical UniversityHarbin 150086Heilongjiang ProvinceChina Department of General Surgery Shaoxing Second HospitalShaoxing 312000Zhejiang ProvinceChina Department of HPB Surgery Changzhou No.2 People’s HospitalChangzhou 213003Jiangsu ProvinceChina Department of Pancreatic and Biliary Surgery The First Affiliated Hospital of Harbin Medical UniversityHarbin 150009Heilongjiang ProvinceChina Department of Hepatobiliary Surgery Shengjing Hospital of China Medical UniversityShenyang 1

BACKGROUND Whether regional lymphadenectomy(RL)should be routinely performed in patients with T1b gallbladder cancer(GBC)remains a subject of *** To investigate whether RL can improve the prognosis of patients with T1b *** We studied a multicenter cohort of patients with T1b GBC who underwent surgery between 2008 and 2016 at 24 hospitals in 13 provinces in *** logrank test and Cox proportional hazards model were used to compare the overall survival(OS)of patients who underwent cholecystectomy(Ch)+RL and those who underwent Ch *** investigate whether combined hepatectomy(Hep)improved OS in T1b patients,we studied patients who underwent Ch+RL to compare the OS of patients who underwent combined Hep and patients who did *** Of the 121 patients(aged 61.9±10.1 years),77(63.6%)underwent Ch+RL,and 44(36.4%)underwent Ch ***(9.1%)patients in the Ch+RL group had lymph node *** 5-year OS rate was significantly higher in the Ch+RL group than in the Ch group(76.3%vs 56.8%,P=0.036).Multivariate analysis showed that Ch+RL was significantly associated with improved OS(hazard ratio:0.51;95%confidence interval:0.26-0.99).Among the 77 patients who underwent Ch+RL,no survival improvement was found in patients who underwent combined Hep(5-year OS rate:79.5%for combined Hep and 76.1%for no Hep;P=0.50).CONCLUSION T1b GBC patients who underwent Ch+RL had a better prognosis than those who underwent ***+Ch showed no improvement in prognosis in T1b GBC *** recommended by both the National Comprehensive Cancer Network and Chinese Medical Association guidelines,RL was only performed in 63.6%of T1b GBC *** Ch+RL should be advised in T1b GBC.

关键词： Gallbladder cancer Lymphadenectomy Hepatectomy Staging Prognosis Surgery

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OptiVol fluid index predicts acute decompensation of heart failure with a high rate of unexplained events

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Journal of Geriatric Cardiology 2013年第3期10卷 253-257页

作者： Xin-wei Yang wei Hua li-Gang Ding jing Wang li-Hui zheng Chong-Qiang li Zhi-Min liu Ke-ping Chen Shu Zhang Center of Arrhythmia Diagnosis and Treatment Fuwai Cardiovascular Hospital Chinese Academy of Medical Sciences Peking Union Medical College No.167 Beilishi Road Xicheng District Beijing 100037 China

Background Intrathoracic impedance monitoring has emerged as a promising new technique for the detection of impending heart failure (HF). Although false positive episodes have been reported in case reports and clinical trials, the efficacy and false positive rate in real-world practice remain unclear. Objective The aim of this study is to investigate the utility and reliability of the OptiVol alert feature in clinical practice. Methods We continuously recruited patients who underwent implantable cardioverter-defibrillator (ICD) or cardiac re-synchronization therapy with defibrillator (CRT-D) implantation with feature of intrathoracic impedance monitoring system in our center from Sep. 2010 to Oct. 2012. Regular in-office follow-up were required of all patients and the following information was collected at each visit: medical history, device interrogation, N-terminal pro-brain natriuretic peptide (NT-proBNP) measurement and an echocardiogram. Worsening HF was defined as hospitalization or the presentation of signs or symptoms of HF. Results Forty three patients (male:76.7%, mean age:57 ± 15 years, left ventricular ejection fraction (LVEF):33%± 14%) were included in this observational study. Fifty four alert events and 14 adjudicated worsening HF were detected within 288 ±163 days follow-up. Eleven (20.4%) alert episodes were associated with acute cardiac decompensation in 9 patients with a positive predictive value of 78.6%. Forty three audible alerts showed no connection to worsening HF. The unexplained alerts rate was 79.6%and 1.27 per person-year. Thirty seven alarm alerts were detected in patients with EFlic function also exhibited considerable alert events. The OptiVol fluid index predicted worsenin

关键词： Heart failure Intrathoracic impedance measurement Left ventricular ejection fraction OptiVol fluid index

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The second natural gas hydrate production test in the South China Sea

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China Geology 2020年第2期3卷 197-209页

作者： Jian-liang ye Xu-wen Qin Wen-wei Xie Hai-long Lu Bao-jin Ma Hai-jun Qiu Jin-qiang liang jing-an Lu Zeng-gui Kuang Cheng Lu Qian-yong liang Shi-peng wei Yan-jiang Yu Chunsheng liu Bin li Kai-xiang Shen Hao-xian Shi Qiu-ping Lu jing li Bei-bei Kou Gang Song Bo li He-en Zhang Hong-feng Lu Chao Ma yi-fei dong Hang Bian China Geological Survey Ministry of Natural ResourcesBeijing 100037China Guangzhou Marine Geological Survey China Geological SurveyMinistry of Natural ResourcesGuangzhou 510075China Institute of Exploration Techniques China Geological SurveyMinistry of Natural ResourcesLangfang 065000China Peking University Beijing 100871China CNPC Offshore Engineering Company limited Beijing 100102China Oil and Gas Resources Survey China Geological SurveyMinistry of Natural ResourcesBeijing 100083China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 510000China

Clayey silt reservoirs bearing natural gas hydrates(NGH)are considered to be the hydrate-bearing reservoirs that boast the highest reserves but tend to be the most difficult to *** are proved to be exploitable by the first NGH production test conducted in the South China Sea in *** on the understanding of the first production test,the China Geological Survey determined the optimal target NGH reservoirs for production test and conducted a detailed assessment,numerical and experimental simulation,and onshore testing of the *** that,it conducted the second offshore NGH production test in 1225 m deep Shenhu Area,South China Sea(also referred to as the second production test)from October 2019 to April *** the second production test,a series of technical challenges of drilling horizontal wells in shallow soft strata in deep sea were met,including wellhead stability,directional drilling of a horizontal well,reservoir stimulation and sand control,and accurate *** a result,30 days of continuous gas production was achieved,with a cumulative gas production of 86.14×104 ***,the average daily gas production is 2.87×10^4 m^3,which is 5.57 times as much as that obtained in the first production ***,both the cumulative gas production and the daily gas production were highly improved compared to the first production *** indicated by the monitoring results of the second production test,there was no anomaly in methane content in the seafloor,seawater,and atmosphere throughout the whole production *** successful production test further indicates that safe and effective NGH exploitation is feasible in clayey silt NGH *** industrialization of hydrates consists of five stages in general,namely theoretical research and simulation experiments,exploratory production test,experimental production test,productive production test,and commercial *** second production test serves as an important step

关键词： Natural gas hydrates Second production test Horizontal well Reservoir stimulation Environmental impact NGH exploration trial engineering South China Sea

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Long-term analysis of clear nights using satellite data considering astronomical sites in western China

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Research in Astronomy and Astrophysics 2020年第6期20卷 96-108页

作者： Zi-huang Cao li-Yong liu Yong-Heng Zhao Lu Feng Hugh RAJones huang Shen Jin-Xin Hao Yan-Jie Xue Yong-Qiang Yao jing Xu Ali Esamdin Zhao-Xiang Qi Jian-Rong Shi Jian li Yuan Tian zheng Wang Tai-Sheng Yan Xia Wang Jian-ping Xiong Si-Cheng Yu Jun-Bo Zhang Zhi-Xia Shen Yun-ying Jiang Jia yin Guang-Xin Pu Peng wei Chun-Hai Bai Guo-Jie Feng Lu Ma Teng-Fei Song Jian-Feng Wang Jian-Feng Tian Xian-Qun Zeng Zhi-Gang Hou Shi-Long liao Zhi-Song Cao dong-wei Fan Yun-Fei Xu Chang-Hua li yi-Han Tao National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism.Communication University of China Beijing 100024China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Yunnan Observatories Chinese Academy of SciencesKunming 650216China

A large ground-based optical/infrared telescope is being planned for a world-class astronomical site in *** cloud-free night percentage is the primary meteorological consideration for evaluating candidate *** data from GMS and NOAA satellites and the MODIS instrument were utilized in this research,covering the period from 1996 to *** data analysis benefits from overlapping results from different independent teams as well as a uniform analysis of selected sites using GMS+NOAA *** significant ground-based monitoring is needed to validate these findings,we identify three different geographical regions with a high percentage of cloud-free conditions(~83%on average),which is slightly lower than at Mauna Kea and Cerro Armazones(~85%on average)and were chosen for the large international projects TMT and ELT *** study finds evidence that cloud distributions and the seasonal changes affected by the prevailing westerly winds and summer monsoons reduce the cloud cover in areas influenced by the *** is consistent with the expectations from climate change models and is suggestive that most of the identified sites will have reduced cloud cover in the future.

关键词： methods statistical-site testing-atmospheric effects-MODIS

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