目的:探讨骨盆前环外固定与微创经皮桥接钢板内固定治疗不稳定型骨盆前环骨折的临床效果。方法:回顾分析2015年3月—2018年6月我院收治的37例不稳定骨盆前环骨折患者的临床资料,其中19例采用骨盆前环外固定(APEF组)治疗,18例采用微创经...目的:探讨骨盆前环外固定与微创经皮桥接钢板内固定治疗不稳定型骨盆前环骨折的临床效果。方法:回顾分析2015年3月—2018年6月我院收治的37例不稳定骨盆前环骨折患者的临床资料,其中19例采用骨盆前环外固定(APEF组)治疗,18例采用微创经皮桥接钢板内固定(MIPPO组)治疗。比较两组手术时间、术中出血量、术中透视次数、骨折复位优良率、骨痂形成时间,观察并发症(感染、出血、行走疼痛、畸形愈合等)、Majeed评分、临床疗效等。结果: APEF组手术时间、术中出血量少于MIPPO组( P <0.05),两组术中透视次数、骨折复位优良率、骨痂形成时间、并发症(感染、出血、行走疼痛、畸形愈合等)、Majeed评分、临床疗效比较差异均无统计学意义( P >0.05)。结论: APEF与MIPPO均是不稳定型骨盆前环骨折的有效手术方式,具有相似的手术效果,但前者可减少手术时间和术中出血量。展开更多
Using a modified C D function and stochastic frontier model, the paper analyzed China's cotton yield capacity and found that the yield and technical efficiency of China's cotton planting system can be increas...Using a modified C D function and stochastic frontier model, the paper analyzed China's cotton yield capacity and found that the yield and technical efficiency of China's cotton planting system can be increased by the use of genetically modified (GM) varieties.展开更多
The transformer-2(tra-2) gene plays a key role in the regulatory hierarchy of sexual differentiation in somatic tissues and in the germline of Drosophila melanogaster.In this study,sequences and expression profiles of...The transformer-2(tra-2) gene plays a key role in the regulatory hierarchy of sexual differentiation in somatic tissues and in the germline of Drosophila melanogaster.In this study,sequences and expression profiles of tra-2 in the Chinese mitten crab Eriocheir sinensis were characterized.Four tra-2 isoforms,designated as Estra-2a,Estra-2b,Estra-2c,and Estra-2d,were isolated.They all contained an RNA-recognition motif(RRM) and a linker region,which shared high similarity with other reported tra-2s.Sequence analysis revealed that Estra-2a,Estra-2b and Estra-2c are encoded by the same genomic locus and are generated by alternative splicing of the pre-mRNA.Compared with the other three isoforms,Estra-2d lacks the RS2 domain.Quantitative real-time PCR showed that all four isoforms were highly expressed in the fertilized egg,and in the 2-4 cell and blastula stages compared with larval stages(P<0.01),suggesting their maternal origin in early embryonic developmental stages.Notably,Estra-2a was highly expressed in male somatic tissues,while Estra-2c was significantly highly expressed in the ovary.These results suggest that Estra-2c is involved in sexual differentiation of the Chinese mitten crab.Our findings provide basic information for further functional studies of the tra-2 gene/protein in this species.展开更多
The paper is devoted to the study of quantitative methods in linguistics and describes the studies conducted. The purpose is to give the general idea of these studies. The first one considers one of the principal logi...The paper is devoted to the study of quantitative methods in linguistics and describes the studies conducted. The purpose is to give the general idea of these studies. The first one considers one of the principal logical categories--the quality. The basis of the research was comprised of lexicographical recourses. The text study finishes up the research. The second one dwells on the usage of the typological indices method in the research of comparatives and superlatives in English, German, and Russian texts. The principal method used is that of typological indices. As the result, people can observe the prospects of this method in linguistics展开更多
In this paper, we apply the method of directly defining the inverse mapping introduced by Liao and Zhao [On the method of directly defining inverse mapping for nonlinear differential equations, Numer. Algorithms 72（4...In this paper, we apply the method of directly defining the inverse mapping introduced by Liao and Zhao [On the method of directly defining inverse mapping for nonlinear differential equations, Numer. Algorithms 72（4） （2016） 989-1020] to the problem of prostate cancer immunotherapy. We extend this method in two directions： first, we apply the method to a system of nonlinear ordinary differential equation, and second, we propose a new technique for finding the base functions in the considered algorithm.展开更多
文摘目的:探讨骨盆前环外固定与微创经皮桥接钢板内固定治疗不稳定型骨盆前环骨折的临床效果。方法:回顾分析2015年3月—2018年6月我院收治的37例不稳定骨盆前环骨折患者的临床资料,其中19例采用骨盆前环外固定(APEF组)治疗,18例采用微创经皮桥接钢板内固定(MIPPO组)治疗。比较两组手术时间、术中出血量、术中透视次数、骨折复位优良率、骨痂形成时间,观察并发症(感染、出血、行走疼痛、畸形愈合等)、Majeed评分、临床疗效等。结果: APEF组手术时间、术中出血量少于MIPPO组( P <0.05),两组术中透视次数、骨折复位优良率、骨痂形成时间、并发症(感染、出血、行走疼痛、畸形愈合等)、Majeed评分、临床疗效比较差异均无统计学意义( P >0.05)。结论: APEF与MIPPO均是不稳定型骨盆前环骨折的有效手术方式,具有相似的手术效果,但前者可减少手术时间和术中出血量。
文摘Using a modified C D function and stochastic frontier model, the paper analyzed China's cotton yield capacity and found that the yield and technical efficiency of China's cotton planting system can be increased by the use of genetically modified (GM) varieties.
基金Supported by the National High Technology Research and Development Program of China(863 Program)(No.2012AA10A409)the Scientific and Technological Innovation Project of Qingdao National Laboratory for Marine Science and Technology(No.2015ASKJ02)
文摘The transformer-2(tra-2) gene plays a key role in the regulatory hierarchy of sexual differentiation in somatic tissues and in the germline of Drosophila melanogaster.In this study,sequences and expression profiles of tra-2 in the Chinese mitten crab Eriocheir sinensis were characterized.Four tra-2 isoforms,designated as Estra-2a,Estra-2b,Estra-2c,and Estra-2d,were isolated.They all contained an RNA-recognition motif(RRM) and a linker region,which shared high similarity with other reported tra-2s.Sequence analysis revealed that Estra-2a,Estra-2b and Estra-2c are encoded by the same genomic locus and are generated by alternative splicing of the pre-mRNA.Compared with the other three isoforms,Estra-2d lacks the RS2 domain.Quantitative real-time PCR showed that all four isoforms were highly expressed in the fertilized egg,and in the 2-4 cell and blastula stages compared with larval stages(P<0.01),suggesting their maternal origin in early embryonic developmental stages.Notably,Estra-2a was highly expressed in male somatic tissues,while Estra-2c was significantly highly expressed in the ovary.These results suggest that Estra-2c is involved in sexual differentiation of the Chinese mitten crab.Our findings provide basic information for further functional studies of the tra-2 gene/protein in this species.
文摘The paper is devoted to the study of quantitative methods in linguistics and describes the studies conducted. The purpose is to give the general idea of these studies. The first one considers one of the principal logical categories--the quality. The basis of the research was comprised of lexicographical recourses. The text study finishes up the research. The second one dwells on the usage of the typological indices method in the research of comparatives and superlatives in English, German, and Russian texts. The principal method used is that of typological indices. As the result, people can observe the prospects of this method in linguistics
文摘In this paper, we apply the method of directly defining the inverse mapping introduced by Liao and Zhao [On the method of directly defining inverse mapping for nonlinear differential equations, Numer. Algorithms 72（4） （2016） 989-1020] to the problem of prostate cancer immunotherapy. We extend this method in two directions： first, we apply the method to a system of nonlinear ordinary differential equation, and second, we propose a new technique for finding the base functions in the considered algorithm.
