目的评价目前国内外发表的针刺治疗卵巢储备功能减退随机对照试验的方法学质量及文献报告质量,为今后开展相关临床研究提供参考。方法检索Cochrane Library、PubMed、Embase、Web of Science、中国生物医学文献数据库(CBM)、中国期刊全...目的评价目前国内外发表的针刺治疗卵巢储备功能减退随机对照试验的方法学质量及文献报告质量,为今后开展相关临床研究提供参考。方法检索Cochrane Library、PubMed、Embase、Web of Science、中国生物医学文献数据库(CBM)、中国期刊全文数据库(CNKI)、万方数据知识服务平台(Wanfang Data)、维普中文期刊服务平台(VIP)有关针刺治疗卵巢储备功能减退的随机对照试验,检索时间限定为建库至2024年3月16日。按纳入与排除标准筛选文献,提取文献的基本特征,运用Cochrane协作网随机对照试验偏倚风险评价工具RoB2进行方法学质量评价,运用临床试验报告的统一标准(CONSORT)声明及针刺临床试验干预措施报告标准(STRICTA)清单进行文献报告质量评价。结果共纳入19项研究。RoB2的评估结果显示,18项研究(94.74%)有一定偏倚风险,1项研究(5.26%)存在高偏倚风险。在CONSORT声明评估中,研究报告率<50%的条目24个,占全部条目的64.86%,报告率<10%的条目14个,占全部条目的37.84%;在STRICTA清单评估中,研究报告率<50%的条目3个,占全部条目的17.65%,报告率<10%的条目2个,占全部条目的11.76%。结论目前针刺治疗卵巢储备功能减退随机对照试验的总体数量偏少,研究方法学质量整体偏低,偏倚风险较大,CONSORT声明条目的文献报告率较低,研究者应进一步加强临床试验设计及方法学培训,提高临床研究水平,并严格按照CONSORT声明和STRICTA清单进行规范报告。展开更多
近年来,在塔里木盆地内部基于地震资料解析发现了一系列埋深地下的板内小型走滑断裂带,通常其延伸长度达几百公里,位移量却小于2 km(Han Xiaoying et al.,2017)。此类断裂因其对盆地古生界油气运聚具有重要的控制作用而备受关注(郑和荣...近年来,在塔里木盆地内部基于地震资料解析发现了一系列埋深地下的板内小型走滑断裂带,通常其延伸长度达几百公里,位移量却小于2 km(Han Xiaoying et al.,2017)。此类断裂因其对盆地古生界油气运聚具有重要的控制作用而备受关注(郑和荣等,2022)。与滑移距数百公里的板块边缘大型走滑断裂相比,研究区发育的小型走滑断裂埋深大、滑移距小、变形微弱、垂向断距不明显且经历多期构造活动,所以对其地震识别与地质解析是当前塔里木盆地油气构造领域研究的重点与难点之一。展开更多
Gas-bearing deposits in the Lower Mingyuefeng Formation of Paleogene,Lishui Sag,East China Sea Shelf Basin consist of shoreface sandstones of the highstand systems tract(HST)and transgressive systems tract(TST),and de...Gas-bearing deposits in the Lower Mingyuefeng Formation of Paleogene,Lishui Sag,East China Sea Shelf Basin consist of shoreface sandstones of the highstand systems tract(HST)and transgressive systems tract(TST),and deltaic sandstones of the lowstand systems tract(LST)and falling stage systems tract(FSST).Detailed petrographic observations suggest that the diagenetic features and related evolution of these deposits cannot be simply characterized and demonstrated in the depth domain.However,the occurrence of diagenetic minerals systematically depends on the studied interval within the HST,TST,LST,and FSST;therefore,diagenesis in this region can be better constrained when studied in the context of the depositional environments and sequence stratigraphic framework.The eogenetic processes in such settings include:(1)microcrystalline siderite precipitated as concretions in almost all environments and systems tracts,which inhibited further mechanical compaction;(2)grain dissolution and kaolinitization occurred in shoreface HST sandstones and deltaic LST and FSST sandstones;(3)glaucony was locally observed,which did not clearly reflect the controls of facies or sequence stratigraphy;and(4)cementation by pyrite aggregates occurred in the shoreface HST sandstones and deltaic LST sandstones.The mesogenetic diagenesis includes:(1)partial conversion of kaolinite into dickite in deltaic LST sandstones,and minor chlorite cementation in deltaic FSST sandstones;(2)transformation of kaolinite into illite and quartz cementation in deltaic LST and FSST sandstones;(3)frequent precipitation of ankerite and ferroan calcite in shoreface TST sandstones and early HST sandstones,forming baffles and barriers for fluid flow,with common calcite in shoreface HST sandstones as a late diagenetic cement;and(4)formation of dawsonite in the deltaic LST and FSST sandstones,which is interpreted to be a product of the invasion of a CO2-rich fluid,and acts as a good indicator of CO2-bearing reservoirs.This study has thus constructed a reliable conceptual model to describe the spatial and temporal distribution of diagenetic alterations.The results may provide an entirely new conceptual framework and methodology for successful gas exploration in the continental margins of offshore China,thus allowing us to predict and unravel the distribution and quality evolution of clastic reservoirs at a more detailed and reliable scale.展开更多
文摘目的评价目前国内外发表的针刺治疗卵巢储备功能减退随机对照试验的方法学质量及文献报告质量,为今后开展相关临床研究提供参考。方法检索Cochrane Library、PubMed、Embase、Web of Science、中国生物医学文献数据库(CBM)、中国期刊全文数据库(CNKI)、万方数据知识服务平台(Wanfang Data)、维普中文期刊服务平台(VIP)有关针刺治疗卵巢储备功能减退的随机对照试验,检索时间限定为建库至2024年3月16日。按纳入与排除标准筛选文献,提取文献的基本特征,运用Cochrane协作网随机对照试验偏倚风险评价工具RoB2进行方法学质量评价,运用临床试验报告的统一标准(CONSORT)声明及针刺临床试验干预措施报告标准(STRICTA)清单进行文献报告质量评价。结果共纳入19项研究。RoB2的评估结果显示,18项研究(94.74%)有一定偏倚风险,1项研究(5.26%)存在高偏倚风险。在CONSORT声明评估中,研究报告率<50%的条目24个,占全部条目的64.86%,报告率<10%的条目14个,占全部条目的37.84%;在STRICTA清单评估中,研究报告率<50%的条目3个,占全部条目的17.65%,报告率<10%的条目2个,占全部条目的11.76%。结论目前针刺治疗卵巢储备功能减退随机对照试验的总体数量偏少,研究方法学质量整体偏低,偏倚风险较大,CONSORT声明条目的文献报告率较低,研究者应进一步加强临床试验设计及方法学培训,提高临床研究水平,并严格按照CONSORT声明和STRICTA清单进行规范报告。
文摘近年来,在塔里木盆地内部基于地震资料解析发现了一系列埋深地下的板内小型走滑断裂带,通常其延伸长度达几百公里,位移量却小于2 km(Han Xiaoying et al.,2017)。此类断裂因其对盆地古生界油气运聚具有重要的控制作用而备受关注(郑和荣等,2022)。与滑移距数百公里的板块边缘大型走滑断裂相比,研究区发育的小型走滑断裂埋深大、滑移距小、变形微弱、垂向断距不明显且经历多期构造活动,所以对其地震识别与地质解析是当前塔里木盆地油气构造领域研究的重点与难点之一。
基金Financial support was provided by the National Science and Technology Major Project of China(No.2011ZX05023-002-003)
文摘Gas-bearing deposits in the Lower Mingyuefeng Formation of Paleogene,Lishui Sag,East China Sea Shelf Basin consist of shoreface sandstones of the highstand systems tract(HST)and transgressive systems tract(TST),and deltaic sandstones of the lowstand systems tract(LST)and falling stage systems tract(FSST).Detailed petrographic observations suggest that the diagenetic features and related evolution of these deposits cannot be simply characterized and demonstrated in the depth domain.However,the occurrence of diagenetic minerals systematically depends on the studied interval within the HST,TST,LST,and FSST;therefore,diagenesis in this region can be better constrained when studied in the context of the depositional environments and sequence stratigraphic framework.The eogenetic processes in such settings include:(1)microcrystalline siderite precipitated as concretions in almost all environments and systems tracts,which inhibited further mechanical compaction;(2)grain dissolution and kaolinitization occurred in shoreface HST sandstones and deltaic LST and FSST sandstones;(3)glaucony was locally observed,which did not clearly reflect the controls of facies or sequence stratigraphy;and(4)cementation by pyrite aggregates occurred in the shoreface HST sandstones and deltaic LST sandstones.The mesogenetic diagenesis includes:(1)partial conversion of kaolinite into dickite in deltaic LST sandstones,and minor chlorite cementation in deltaic FSST sandstones;(2)transformation of kaolinite into illite and quartz cementation in deltaic LST and FSST sandstones;(3)frequent precipitation of ankerite and ferroan calcite in shoreface TST sandstones and early HST sandstones,forming baffles and barriers for fluid flow,with common calcite in shoreface HST sandstones as a late diagenetic cement;and(4)formation of dawsonite in the deltaic LST and FSST sandstones,which is interpreted to be a product of the invasion of a CO2-rich fluid,and acts as a good indicator of CO2-bearing reservoirs.This study has thus constructed a reliable conceptual model to describe the spatial and temporal distribution of diagenetic alterations.The results may provide an entirely new conceptual framework and methodology for successful gas exploration in the continental margins of offshore China,thus allowing us to predict and unravel the distribution and quality evolution of clastic reservoirs at a more detailed and reliable scale.
