The cloud type product 2B-CLDCLASS-LIDAR based on CloudSat and CALIPSO from June 2006 to May 2017 is used to examine the temporal and spatial distribution characteristics and interannual variability of eight cloud typ...The cloud type product 2B-CLDCLASS-LIDAR based on CloudSat and CALIPSO from June 2006 to May 2017 is used to examine the temporal and spatial distribution characteristics and interannual variability of eight cloud types(high cloud, altostratus, altocumulus, stratus, stratocumulus, cumulus, nimbostratus, and deep convection) and three phases(ice,mixed, and water) in the Arctic. Possible reasons for the observed interannual variability are also discussed. The main conclusions are as follows:(1) More water clouds occur on the Atlantic side, and more ice clouds occur over continents.(2)The average spatial and seasonal distributions of cloud types show three patterns: high clouds and most cumuliform clouds are concentrated in low-latitude locations and peak in summer;altostratus and nimbostratus are concentrated over and around continents and are less abundant in summer;stratocumulus and stratus are concentrated near the inner Arctic and peak during spring and autumn.(3) Regional averaged interannual frequencies of ice clouds and altostratus clouds significantly decrease, while those of water clouds, altocumulus, and cumulus clouds increase significantly.(4) Significant features of the linear trends of cloud frequencies are mainly located over ocean areas.(5) The monthly water cloud frequency anomalies are positively correlated with air temperature in most of the troposphere, while those for ice clouds are negatively correlated.(6) The decrease in altostratus clouds is associated with the weakening of the Arctic front due to Arctic warming, while increased water vapor transport into the Arctic and higher atmospheric instability lead to more cumulus and altocumulus clouds.展开更多
采用LEICA DIM5000M光学显微镜、ZEISS SUPRA 55场发射扫描电镜和OXFORD能谱仪,检测SPA-H耐候钢表面氧化铁皮缺陷并分析了产生原因,采取降低加热段和均热段加热温度、RDT温度,缩短板坯在炉时间,提高上线轧辊辊面质量,合理控制炉后除鳞...采用LEICA DIM5000M光学显微镜、ZEISS SUPRA 55场发射扫描电镜和OXFORD能谱仪,检测SPA-H耐候钢表面氧化铁皮缺陷并分析了产生原因,采取降低加热段和均热段加热温度、RDT温度,缩短板坯在炉时间,提高上线轧辊辊面质量,合理控制炉后除鳞和机架间除鳞水压力和喷嘴安装角度等措施后,SPA-H耐候钢表面氧化铁皮缺陷率由0.83%降至0.07%,约降低91.6%。展开更多
目的:分析国内外运动疗法在2型糖尿病护理领域的有关文献,探讨其研究现状、研究热点及研究前沿,为今后科研工作者进行相关研究提供参考。方法:采用CiteSpace 6.2.R2软件,对中国知网(CNKI)和Web of Science(WoS)核心合集数据库中收录的...目的:分析国内外运动疗法在2型糖尿病护理领域的有关文献,探讨其研究现状、研究热点及研究前沿,为今后科研工作者进行相关研究提供参考。方法:采用CiteSpace 6.2.R2软件,对中国知网(CNKI)和Web of Science(WoS)核心合集数据库中收录的有关运动疗法在2型糖尿病护理领域的相关文献进行发文量、发文期刊、作者、机构、关键词的可视化分析。检索时限为2012年1月1日—2022年12月31日。结果:CNKI和WoS分别检索出相关文献821篇和318篇,发文量整体呈递减趋势;CNKI共获得11个聚类群、22个突显关键词;WoS共获得7个聚类群、14个突显关键词。结论:国内外运动疗法在2型糖尿病护理领域的研究热点差异较大,国内文献质量有待进一步提高,作者、机构间的合作有待加强。扩大运动护理在2型糖尿病中的研究人群,加强运动方案的构建和效果评价,基于互联网和多学科团队合作的延续性运动护理是未来的研究趋势。展开更多
Objective:To determine the antibiotic resistance profile(ARP)of Staphylococcus(S.)aureus isolates and molecular typing of the methicillin-resistant S.aureus(MRSA)isolates from Tuanku Mizan Armed Forces Hospital(TMAFH)...Objective:To determine the antibiotic resistance profile(ARP)of Staphylococcus(S.)aureus isolates and molecular typing of the methicillin-resistant S.aureus(MRSA)isolates from Tuanku Mizan Armed Forces Hospital(TMAFH),Kuala Lumpur.Methods:The ARP and presence of the pvl gene were determined for 209 S.aureus isolates from clinical specimens.Of these,123 were methicillin-susceptible S.aureus(MSSA)isolates and 86 were MRSA isolates.All MRSA isolates were characterized using SCCmec typing and spa typing.Descriptive analysis was performed to compare the demographic data with the phenotypic and genotypic variables of the S.aureus isolates.Results:No vancomycin-intermediate and-resistant S.aureus(VISA and VRSA,respectively)were detected among the study isolates.The MSSA isolates showed low resistance rates to all tested antibiotics,were commonly invasive(28/42,66.7%),and mostly harboured pvl(35/42,83.3%).Meanwhile,MRSA isolates showed high resistance to penicillin(86/86,100%),ampicillin(86/86,100%),sulbactam/ampicillin(86/86,100%),cefuroxime(81/86,94.19%),cefoperazone(76/86,88.37%),azithromycin(56/86,65.12%),and erythromycin(54/86,62.79%).The majority of MRSA isolates were of SCCmec type IVh(65/86,75.58%),spa type t032(55/85,63.95%),and grouped into spaCC-t022(66/85,77.65%).The t032 type was found to be associated with resistance traits to azithromycin and erythromycin(P<0.05).We also found several spa types that are typically associated with hospital-,community-,and livestock-associated MRSA co-existing in our MRSA population.Conclusions:This study reflected the consistent absence of VISA and VRSA and corroborated the clonal shifting of MRSA isolates in the Malaysian MRSA isolates.展开更多
基金supported in part by the National Natural Science Foundation of China (Grant No. 42105127)the Special Research Assistant Project of the Chinese Academy of Sciencesthe National Key Research and Development Plans of China (Grant Nos. 2019YFC1510304 and 2016YFE0201900-02)。
文摘The cloud type product 2B-CLDCLASS-LIDAR based on CloudSat and CALIPSO from June 2006 to May 2017 is used to examine the temporal and spatial distribution characteristics and interannual variability of eight cloud types(high cloud, altostratus, altocumulus, stratus, stratocumulus, cumulus, nimbostratus, and deep convection) and three phases(ice,mixed, and water) in the Arctic. Possible reasons for the observed interannual variability are also discussed. The main conclusions are as follows:(1) More water clouds occur on the Atlantic side, and more ice clouds occur over continents.(2)The average spatial and seasonal distributions of cloud types show three patterns: high clouds and most cumuliform clouds are concentrated in low-latitude locations and peak in summer;altostratus and nimbostratus are concentrated over and around continents and are less abundant in summer;stratocumulus and stratus are concentrated near the inner Arctic and peak during spring and autumn.(3) Regional averaged interannual frequencies of ice clouds and altostratus clouds significantly decrease, while those of water clouds, altocumulus, and cumulus clouds increase significantly.(4) Significant features of the linear trends of cloud frequencies are mainly located over ocean areas.(5) The monthly water cloud frequency anomalies are positively correlated with air temperature in most of the troposphere, while those for ice clouds are negatively correlated.(6) The decrease in altostratus clouds is associated with the weakening of the Arctic front due to Arctic warming, while increased water vapor transport into the Arctic and higher atmospheric instability lead to more cumulus and altocumulus clouds.
文摘采用LEICA DIM5000M光学显微镜、ZEISS SUPRA 55场发射扫描电镜和OXFORD能谱仪,检测SPA-H耐候钢表面氧化铁皮缺陷并分析了产生原因,采取降低加热段和均热段加热温度、RDT温度,缩短板坯在炉时间,提高上线轧辊辊面质量,合理控制炉后除鳞和机架间除鳞水压力和喷嘴安装角度等措施后,SPA-H耐候钢表面氧化铁皮缺陷率由0.83%降至0.07%,约降低91.6%。
文摘目的:分析国内外运动疗法在2型糖尿病护理领域的有关文献,探讨其研究现状、研究热点及研究前沿,为今后科研工作者进行相关研究提供参考。方法:采用CiteSpace 6.2.R2软件,对中国知网(CNKI)和Web of Science(WoS)核心合集数据库中收录的有关运动疗法在2型糖尿病护理领域的相关文献进行发文量、发文期刊、作者、机构、关键词的可视化分析。检索时限为2012年1月1日—2022年12月31日。结果:CNKI和WoS分别检索出相关文献821篇和318篇,发文量整体呈递减趋势;CNKI共获得11个聚类群、22个突显关键词;WoS共获得7个聚类群、14个突显关键词。结论:国内外运动疗法在2型糖尿病护理领域的研究热点差异较大,国内文献质量有待进一步提高,作者、机构间的合作有待加强。扩大运动护理在2型糖尿病中的研究人群,加强运动方案的构建和效果评价,基于互联网和多学科团队合作的延续性运动护理是未来的研究趋势。
基金The study was funded by the UPNM Short Term Grant (UPNM/2019/GPJP/SP/1).
文摘Objective:To determine the antibiotic resistance profile(ARP)of Staphylococcus(S.)aureus isolates and molecular typing of the methicillin-resistant S.aureus(MRSA)isolates from Tuanku Mizan Armed Forces Hospital(TMAFH),Kuala Lumpur.Methods:The ARP and presence of the pvl gene were determined for 209 S.aureus isolates from clinical specimens.Of these,123 were methicillin-susceptible S.aureus(MSSA)isolates and 86 were MRSA isolates.All MRSA isolates were characterized using SCCmec typing and spa typing.Descriptive analysis was performed to compare the demographic data with the phenotypic and genotypic variables of the S.aureus isolates.Results:No vancomycin-intermediate and-resistant S.aureus(VISA and VRSA,respectively)were detected among the study isolates.The MSSA isolates showed low resistance rates to all tested antibiotics,were commonly invasive(28/42,66.7%),and mostly harboured pvl(35/42,83.3%).Meanwhile,MRSA isolates showed high resistance to penicillin(86/86,100%),ampicillin(86/86,100%),sulbactam/ampicillin(86/86,100%),cefuroxime(81/86,94.19%),cefoperazone(76/86,88.37%),azithromycin(56/86,65.12%),and erythromycin(54/86,62.79%).The majority of MRSA isolates were of SCCmec type IVh(65/86,75.58%),spa type t032(55/85,63.95%),and grouped into spaCC-t022(66/85,77.65%).The t032 type was found to be associated with resistance traits to azithromycin and erythromycin(P<0.05).We also found several spa types that are typically associated with hospital-,community-,and livestock-associated MRSA co-existing in our MRSA population.Conclusions:This study reflected the consistent absence of VISA and VRSA and corroborated the clonal shifting of MRSA isolates in the Malaysian MRSA isolates.
