There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like XYZ states at BESⅢ and B fac...There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like XYZ states at BESⅢ and B factories, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related X(1835) meson state at BESⅢ, as well as the threshold measurements of charm mesons and charm baryons. We present a detailed survey of the important topics in tau-charm physics and hadron physics that can be further explored at BESⅢ during the remaining operation period of BEPCⅡ. This survey will help in the optimization of the data-taking plan over the coming years, and provides physics motivation for the possible upgrade of BEPCⅡ to higher luminosity.展开更多
BACKGROUND:The present study aimed to explore the relationship between surgical methods,hemorrhage position,hemorrhage volume,surgical timing and treatment outcome of hypertensive intracerebral hemorrhage(HICH).METHOD...BACKGROUND:The present study aimed to explore the relationship between surgical methods,hemorrhage position,hemorrhage volume,surgical timing and treatment outcome of hypertensive intracerebral hemorrhage(HICH).METHODS:A total of 1 310 patients,who had been admitted to six hospitals from January 2004 to January 2008,were divided into six groups according to different surgical methods:craniotomy through bone fl ap(group A),craniotomy through a small bone window(group B),stereotactic drilling drainage(group C1 and group C2),neuron-endoscopy operation(group D) and external ventricular drainage(group E) in consideration of hemorrhage position,hemorrhage volume and clinical practice. A retrospective analysis was made of surgical timing and curative effect of the surgical methods.RESULTS:The effectiveness rate of the methods was 74.12% for 1 310 patients after onemonth follow-up. In this series,the disability rate was 44.82% 3–6 months after the operation. Among the 1 310 patients,241(18.40%) patients died after the operation. If hematoma volume was >80 mL and the operation was performed within 3 hours,the mortality rate of group A was signifi cantly lower than that of groups B,C,D,and E(P<0.05). If hematoma volume was 50–80 mL and the operation was performed within 6–12 hours,the mortality rate of groups B and D was lower than that of groups A,C and E(P<0.05). If hematoma volume was 20–50 mL and the operation was performed within 6–24 hours,the mortality rate of group C was lower than that of groups A,B and D(P<0.05).CONCLUSIONS:Craniotomy through a bone f lap is suitable for patients with a large hematoma and hernia of the brain. Stereotactic drilling drainage is suggested for patients with hematoma volume less than 80 mL. The curative effect of HICH individualized treatment would be improved via the suitable selection of operation time and surgical method according to the position and volume of hemorrhage.展开更多
Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent to reduce CO2 emission,and the use of hydrogen is beneficial to promoting the sustainable development of the steel indus...Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent to reduce CO2 emission,and the use of hydrogen is beneficial to promoting the sustainable development of the steel industry.Hydrogen metallurgy has numerous applications,such as H2reduction ironmaking in Japan,ULCORED and hydrogen-based steelmaking in Europe;hydrogen flash ironmaking technology in the US;HYBRIT in the Nordics;Midrex H2TM by Midrex Technologies,Inc.(United States);H2FUTURE by Voestalpine(Austria);and SALCOS by Salzgitter AG(Germany).Hydrogen-rich blast furnaces(BFs)with COG injection are common in China.Running BFs have been industrially tested by AnSteel,XuSteel,and BenSteel.In a currently under construction pilot plant of a coal gasification–gas-based shaft furnace with an annual output of 10000 t direct reduction iron(DRI),a reducing gas composed of 57 vol%H2 and 38 vol%CO is prepared via the Ende method.The life cycle of the coal gasification–gas-based shaft furnace–electric furnace short process(30 wt%DRI+70 wt%scrap)is assessed with 1 t of molten steel as a functional unit.This plant has a total energy consumption per ton of steel of 263.67 kg standard coal and a CO2 emission per ton of steel of 829.89 kg,which are superior to those of a traditional BF converter process.Considering domestic materials and fuels,hydrogen production and storage,and hydrogen reduction characteristics,we believe that a hydrogen-rich shaft furnace will be suitable in China.Hydrogen production and storage with an economic and large-scale industrialization will promote the further development of a full hydrogen shaft furnace.展开更多
The novel contagious primary atypical pneumonia epidemic,which broke out in Wuhan,China,in December 2019,is now formally called Coronavirus Disease 2019(COVID-19),with the causative virus named as Severe Acute Respira...The novel contagious primary atypical pneumonia epidemic,which broke out in Wuhan,China,in December 2019,is now formally called Coronavirus Disease 2019(COVID-19),with the causative virus named as Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2).1,2 Recent studies have shown that in addition to dyspnea,hypoxemia,and acute respiratory distress,lymphopenia,and cytokine release syndrome are also important clinical features in patients with severe SARS-CoV-2 infection.3 This suggests that homeostasis of the immune system plays an important role in the development of COVID-19 pneumonia.展开更多
目的评估氨磺必利片治疗精神分裂症急性发作患者的疗效和安全性。方法根据ICD-10精神分裂症的诊断标准，纳入急性发作患者144例，给予可调节剂量氨磺必利片单药治疗8周；治疗初始剂量为200 mg/d，依据患者的临床状况调节氨磺必利片的剂...目的评估氨磺必利片治疗精神分裂症急性发作患者的疗效和安全性。方法根据ICD-10精神分裂症的诊断标准，纳入急性发作患者144例，给予可调节剂量氨磺必利片单药治疗8周；治疗初始剂量为200 mg/d，依据患者的临床状况调节氨磺必利片的剂量，推荐治疗量为800 mg/d，最大剂量为1 200 mg/d。分别于基线、治疗第2、4、8周采用PANSS，于基线及治疗第8周采用临床总体印象量表-严重程度和总体改善（CGI-S, CGI-I）、个人与社会功能量表（Personal and Social Performance Scale,PSP）评估临床疗效；采用UKU（Udvalg for Kliniske Undersogeser）不良反应评估量表、血生化指标和心电图等评估治疗的安全性。分别采用符合方案和安全性数据集分析氨磺必利片的疗效和安全性。结果共132例完成临床研究，脱落12例；经8周治疗，急性发作精神分裂症患者PANSS阳性症状分[（22.0±6.6）分与（10.0±3.8）分]、阴性症状分[（22.7±7.7）分与（13.9±6.8）分]、一般精神病理分[（41.6±9.0）分与（25.1±7.4）分]、总分[（86.5±16.0）分与（49.0±16.0）分]均显著降低（均P〈0.01）；PANSS总分有效率（PANSS总分减分率≥50%）为77.3%（102/132），CGI-I有效率为75.8%（100/132）；阳性症状亚组PANSS总分有效率优于阴性症状亚组（χ^2=9.52，P〈0.01）；经8周治疗，个人与社会表现量表总分显著提高（t=18.10，P〈0.01）；不良反应主要为锥体外系不良反应（29.2%）和催乳素升高（23.6%）。结论氨磺必利片可有效缓解精神分裂症急性发作患者的精神病理症状，最常见的不良反应为锥体外系不良反应和泌乳素升高，未见其他抗精神病药未发生的不良反应。展开更多
基金Supported in part by National Key Basic Research Program of China (2015CB856700)National Natural Science Foundation of China (NSFC) (11335008,11425524, 11625523, 11635010, 11735014, 11822506, 11935018)+18 种基金the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Programthe CAS Center for Excellence in Particle Physics (CCEPP)Joint Large-Scale Scientific Facility Funds of the NSFC and CAS (U1532257, U1532258, U1732263)CAS Key Research Program of Frontier Science (QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040)100 Talents Program of CASCAS PIFIthe Thousand Talents Program of ChinaIN-PAC and Shanghai Key Laboratory for Particle Physics and CosmologyGerman Research Foundation DFG under Contracts NosCollaborative Research Center CRC 1044, FOR 2359Istituto Nazionale di Fisica Nucleare, ItalyKoninklijke Nederlandse Akademie van Wetenschappen (KNAW) (530-4CDP03)Ministry of Development of Turkey (DPT2006K-120470)National Science and Technology fundThe Knut and Alice Wallenberg Foundation (Sweden) (2016.0157)The Swedish Research CouncilU. S. Department of Energy (DE-FG02-05ER41374, DESC-0010118, DE-SC-0012069)University of Groningen (Ru G) and the Helmholtzzentrum fuer Schwerionenforschung Gmb H (GSI), Darmstadtthe Russian Ministry of Science and Higher Education (14.W03.31.0026).
文摘There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like XYZ states at BESⅢ and B factories, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related X(1835) meson state at BESⅢ, as well as the threshold measurements of charm mesons and charm baryons. We present a detailed survey of the important topics in tau-charm physics and hadron physics that can be further explored at BESⅢ during the remaining operation period of BEPCⅡ. This survey will help in the optimization of the data-taking plan over the coming years, and provides physics motivation for the possible upgrade of BEPCⅡ to higher luminosity.
基金supported by a grant from Shanghai Pudong New Area(PWZxkq2011-01)
文摘BACKGROUND:The present study aimed to explore the relationship between surgical methods,hemorrhage position,hemorrhage volume,surgical timing and treatment outcome of hypertensive intracerebral hemorrhage(HICH).METHODS:A total of 1 310 patients,who had been admitted to six hospitals from January 2004 to January 2008,were divided into six groups according to different surgical methods:craniotomy through bone fl ap(group A),craniotomy through a small bone window(group B),stereotactic drilling drainage(group C1 and group C2),neuron-endoscopy operation(group D) and external ventricular drainage(group E) in consideration of hemorrhage position,hemorrhage volume and clinical practice. A retrospective analysis was made of surgical timing and curative effect of the surgical methods.RESULTS:The effectiveness rate of the methods was 74.12% for 1 310 patients after onemonth follow-up. In this series,the disability rate was 44.82% 3–6 months after the operation. Among the 1 310 patients,241(18.40%) patients died after the operation. If hematoma volume was >80 mL and the operation was performed within 3 hours,the mortality rate of group A was signifi cantly lower than that of groups B,C,D,and E(P<0.05). If hematoma volume was 50–80 mL and the operation was performed within 6–12 hours,the mortality rate of groups B and D was lower than that of groups A,C and E(P<0.05). If hematoma volume was 20–50 mL and the operation was performed within 6–24 hours,the mortality rate of group C was lower than that of groups A,B and D(P<0.05).CONCLUSIONS:Craniotomy through a bone f lap is suitable for patients with a large hematoma and hernia of the brain. Stereotactic drilling drainage is suggested for patients with hematoma volume less than 80 mL. The curative effect of HICH individualized treatment would be improved via the suitable selection of operation time and surgical method according to the position and volume of hemorrhage.
基金the National Natural Science Foundation of China(No.51904063)the Fundamental Research Funds for the Central Universities(Nos.N2025023,N172503016,N172502005,and N172506011)+1 种基金the China Postdoctoral Science Foundation(No.2018M640259)the Xingliao Talent Plan(No.XLYC1902118)。
文摘Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent to reduce CO2 emission,and the use of hydrogen is beneficial to promoting the sustainable development of the steel industry.Hydrogen metallurgy has numerous applications,such as H2reduction ironmaking in Japan,ULCORED and hydrogen-based steelmaking in Europe;hydrogen flash ironmaking technology in the US;HYBRIT in the Nordics;Midrex H2TM by Midrex Technologies,Inc.(United States);H2FUTURE by Voestalpine(Austria);and SALCOS by Salzgitter AG(Germany).Hydrogen-rich blast furnaces(BFs)with COG injection are common in China.Running BFs have been industrially tested by AnSteel,XuSteel,and BenSteel.In a currently under construction pilot plant of a coal gasification–gas-based shaft furnace with an annual output of 10000 t direct reduction iron(DRI),a reducing gas composed of 57 vol%H2 and 38 vol%CO is prepared via the Ende method.The life cycle of the coal gasification–gas-based shaft furnace–electric furnace short process(30 wt%DRI+70 wt%scrap)is assessed with 1 t of molten steel as a functional unit.This plant has a total energy consumption per ton of steel of 263.67 kg standard coal and a CO2 emission per ton of steel of 829.89 kg,which are superior to those of a traditional BF converter process.Considering domestic materials and fuels,hydrogen production and storage,and hydrogen reduction characteristics,we believe that a hydrogen-rich shaft furnace will be suitable in China.Hydrogen production and storage with an economic and large-scale industrialization will promote the further development of a full hydrogen shaft furnace.
文摘The novel contagious primary atypical pneumonia epidemic,which broke out in Wuhan,China,in December 2019,is now formally called Coronavirus Disease 2019(COVID-19),with the causative virus named as Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2).1,2 Recent studies have shown that in addition to dyspnea,hypoxemia,and acute respiratory distress,lymphopenia,and cytokine release syndrome are also important clinical features in patients with severe SARS-CoV-2 infection.3 This suggests that homeostasis of the immune system plays an important role in the development of COVID-19 pneumonia.
文摘目的评估氨磺必利片治疗精神分裂症急性发作患者的疗效和安全性。方法根据ICD-10精神分裂症的诊断标准，纳入急性发作患者144例，给予可调节剂量氨磺必利片单药治疗8周；治疗初始剂量为200 mg/d，依据患者的临床状况调节氨磺必利片的剂量，推荐治疗量为800 mg/d，最大剂量为1 200 mg/d。分别于基线、治疗第2、4、8周采用PANSS，于基线及治疗第8周采用临床总体印象量表-严重程度和总体改善（CGI-S, CGI-I）、个人与社会功能量表（Personal and Social Performance Scale,PSP）评估临床疗效；采用UKU（Udvalg for Kliniske Undersogeser）不良反应评估量表、血生化指标和心电图等评估治疗的安全性。分别采用符合方案和安全性数据集分析氨磺必利片的疗效和安全性。结果共132例完成临床研究，脱落12例；经8周治疗，急性发作精神分裂症患者PANSS阳性症状分[（22.0±6.6）分与（10.0±3.8）分]、阴性症状分[（22.7±7.7）分与（13.9±6.8）分]、一般精神病理分[（41.6±9.0）分与（25.1±7.4）分]、总分[（86.5±16.0）分与（49.0±16.0）分]均显著降低（均P〈0.01）；PANSS总分有效率（PANSS总分减分率≥50%）为77.3%（102/132），CGI-I有效率为75.8%（100/132）；阳性症状亚组PANSS总分有效率优于阴性症状亚组（χ^2=9.52，P〈0.01）；经8周治疗，个人与社会表现量表总分显著提高（t=18.10，P〈0.01）；不良反应主要为锥体外系不良反应（29.2%）和催乳素升高（23.6%）。结论氨磺必利片可有效缓解精神分裂症急性发作患者的精神病理症状，最常见的不良反应为锥体外系不良反应和泌乳素升高，未见其他抗精神病药未发生的不良反应。
