BACKGROUND Isolated gallbladder injury(GI)(IGI)directly induced by abdominal trauma is rare.Symptoms,indications,and imaging examinations of IGI are frequently non-specific,posing tremendous diagnostic challenges,whic...BACKGROUND Isolated gallbladder injury(GI)(IGI)directly induced by abdominal trauma is rare.Symptoms,indications,and imaging examinations of IGI are frequently non-specific,posing tremendous diagnostic challenges,which are simple to overlook and may have severe implications.Improving doctors'understanding of gallbladder injury(GI)facilitates early detection and decreases the likelihood of severe consequences,including death.CASE SUMMARY We report a case of IGI caused by blunt violence(after falling from three meters with the umbilicus as the stress point)and performed laparoscopic repair of the gallbladder rupture,which helps clinicians understand IGI and reduce the severe consequences of delayed diagnosis.Through extensive medical history and dynamic abdominal ultrasound evaluation,doctors can identify GI early and begin surgery,thereby decreasing the devastating repercussions of delayed diagnosis.CONCLUSION This article aims to improve clinicians'understanding of IGI and propose a method for the diagnosis and treatment of GI.展开更多
目的采用Meta分析评价七叶皂苷钠联合甘露醇治疗脑出血的有效性及安全性。方法通过检索Embase、PubMed、CNKI、维普及万方数据库公开发表的七叶皂苷钠联合甘露醇治疗脑出血的随机对照研究,检索期限截至2019年10月。由2位研究人员独立对...目的采用Meta分析评价七叶皂苷钠联合甘露醇治疗脑出血的有效性及安全性。方法通过检索Embase、PubMed、CNKI、维普及万方数据库公开发表的七叶皂苷钠联合甘露醇治疗脑出血的随机对照研究,检索期限截至2019年10月。由2位研究人员独立对纳入研究进行文献筛选、资料提取和质量评价后,采用Rev Man 5.3软件进行Meta分析。结果共纳入19项研究,其中包括1829例患者。Meta分析结果显示,试验组的临床有效率高于对照组[RR^^=1.27(95%CI:1.22,1.33),P=0.000];试验组治疗后神经功能缺损改善情况优于对照组[WMD=6.98(95%CI:6.34,7.62),P=0.000];试验组经治疗后脑血肿吸收情况优于对照组[WMD=4.38(95%CI:3.45,5.31),P=0.000];试验组治疗过程中不良反应发生率低于对照组[RR^^=0.40(95%CI:0.24,0.65),P=0.000]。结论与单用甘露醇相比,七叶皂苷钠联合甘露醇治疗脑出血能显著提高临床有效率,改善神经功能缺损状况,促进脑血肿吸收,且不良反应发生率也显著降低。展开更多
The Square Kilometre Array(SKA) will be the world’s largest synthesis radio telescope, which is designed to answer major scientific questions such as those relating to the cosmic origin and fundamental forces in the ...The Square Kilometre Array(SKA) will be the world’s largest synthesis radio telescope, which is designed to answer major scientific questions such as those relating to the cosmic origin and fundamental forces in the universe. With the SKA entering into the phase of pre-construction, more than 100 institutes in about 20 countries including China have been involved in the associated key technology development.The Dish Verification Antenna China(DVA-C) is a concept prototype which has been built to meet the requirements of the SKA’s scientific goals. It utilizes a unique skin-and-rib structure with single-piece panel reflectors. This paper presents details on the design and measured performances of DVA-C, as well as the preliminary observational results. Current applications of the DVA-C are also introduced.展开更多
Wide-bandgap gallium oxide(Ga_(2)O_(3))is one of the most promising semiconductor materials for solar-blind(200 nm to 280 nm)photodetection.In its amorphous form,amorphous gallium oxide(a-Ga_(2)O_(3))maintains its int...Wide-bandgap gallium oxide(Ga_(2)O_(3))is one of the most promising semiconductor materials for solar-blind(200 nm to 280 nm)photodetection.In its amorphous form,amorphous gallium oxide(a-Ga_(2)O_(3))maintains its intrinsic optoelectronic properties while can be prepared at a low growth temperature,thus it is compatible with Si integrated circuits(ICs)technology.Herein,the a-Ga_(2)O_(3) film is directly deposited on pre-fabricated Au interdigital electrodes by plasma enhanced atomic layer deposition(PE-ALD)at a growth temperature of 250°C.The stoichiometric a-Ga_(2)O_(3) thin film with a low defect density is achieved owing to the mild PE-ALD condition.As a result,the fabricated Au/a-Ga_(2)O_(3)/Au photodetector shows a fast time response,high responsivity,and excellent wavelength selectivity for solar-blind photodetection.Furthermore,an ultra-thin MgO layer is deposited by PE-ALD to passivate the Au/a-Ga_(2)O_(3)/Au interface,resulting in the responsivity of 788 A/W(under 254 nm at 10 V),a 250-nm-to-400-nm rejection ratio of 9.2×10^(3),and the rise time and the decay time of 32 ms and 6 ms,respectively.These results demonstrate that the a-Ga_(2)O_(3) film grown by PE-ALD is a promising candidate for high-performance solar-blind photodetection and potentially can be integrated with Si ICs for commercial production.展开更多
An oligosaccharide donor, acetylated sept-D-glucopyranose tetradecyl carbamate, was designed and synthesized. This compound could be easily linked to hydroxyl-containing compounds through an Oglycosidic bond. Characte...An oligosaccharide donor, acetylated sept-D-glucopyranose tetradecyl carbamate, was designed and synthesized. This compound could be easily linked to hydroxyl-containing compounds through an Oglycosidic bond. Characterization of all the oligosaccharide intermediates and the final product was thoroughly discussed.展开更多
文摘BACKGROUND Isolated gallbladder injury(GI)(IGI)directly induced by abdominal trauma is rare.Symptoms,indications,and imaging examinations of IGI are frequently non-specific,posing tremendous diagnostic challenges,which are simple to overlook and may have severe implications.Improving doctors'understanding of gallbladder injury(GI)facilitates early detection and decreases the likelihood of severe consequences,including death.CASE SUMMARY We report a case of IGI caused by blunt violence(after falling from three meters with the umbilicus as the stress point)and performed laparoscopic repair of the gallbladder rupture,which helps clinicians understand IGI and reduce the severe consequences of delayed diagnosis.Through extensive medical history and dynamic abdominal ultrasound evaluation,doctors can identify GI early and begin surgery,thereby decreasing the devastating repercussions of delayed diagnosis.CONCLUSION This article aims to improve clinicians'understanding of IGI and propose a method for the diagnosis and treatment of GI.
文摘目的采用Meta分析评价七叶皂苷钠联合甘露醇治疗脑出血的有效性及安全性。方法通过检索Embase、PubMed、CNKI、维普及万方数据库公开发表的七叶皂苷钠联合甘露醇治疗脑出血的随机对照研究,检索期限截至2019年10月。由2位研究人员独立对纳入研究进行文献筛选、资料提取和质量评价后,采用Rev Man 5.3软件进行Meta分析。结果共纳入19项研究,其中包括1829例患者。Meta分析结果显示,试验组的临床有效率高于对照组[RR^^=1.27(95%CI:1.22,1.33),P=0.000];试验组治疗后神经功能缺损改善情况优于对照组[WMD=6.98(95%CI:6.34,7.62),P=0.000];试验组经治疗后脑血肿吸收情况优于对照组[WMD=4.38(95%CI:3.45,5.31),P=0.000];试验组治疗过程中不良反应发生率低于对照组[RR^^=0.40(95%CI:0.24,0.65),P=0.000]。结论与单用甘露醇相比,七叶皂苷钠联合甘露醇治疗脑出血能显著提高临床有效率,改善神经功能缺损状况,促进脑血肿吸收,且不良反应发生率也显著降低。
基金supported by the Chinese Ministry of Science and Technology under Projects of International Cooperation and Exchange (11261140641)the State Key Development Program for Basic Research (2013CB837900)+1 种基金the State Program for High-Tech Research and Development (SS2014AA122001)the National Natural Science Foundation of China (Grant No. 11673031)
文摘The Square Kilometre Array(SKA) will be the world’s largest synthesis radio telescope, which is designed to answer major scientific questions such as those relating to the cosmic origin and fundamental forces in the universe. With the SKA entering into the phase of pre-construction, more than 100 institutes in about 20 countries including China have been involved in the associated key technology development.The Dish Verification Antenna China(DVA-C) is a concept prototype which has been built to meet the requirements of the SKA’s scientific goals. It utilizes a unique skin-and-rib structure with single-piece panel reflectors. This paper presents details on the design and measured performances of DVA-C, as well as the preliminary observational results. Current applications of the DVA-C are also introduced.
基金This work was supported by the National Natural Science Foundation of China under Grant No.21872019 and the Innovation Group Project of Sichuan Province under Grant No.20CXTD0090This work was also partly supported by the Slovenian Research Agency under Grants No.P2-0412 and No.J2-2498 for A.Mavric and M.Valant,and No.Z1-3189 for N.Pastukhova。
文摘Wide-bandgap gallium oxide(Ga_(2)O_(3))is one of the most promising semiconductor materials for solar-blind(200 nm to 280 nm)photodetection.In its amorphous form,amorphous gallium oxide(a-Ga_(2)O_(3))maintains its intrinsic optoelectronic properties while can be prepared at a low growth temperature,thus it is compatible with Si integrated circuits(ICs)technology.Herein,the a-Ga_(2)O_(3) film is directly deposited on pre-fabricated Au interdigital electrodes by plasma enhanced atomic layer deposition(PE-ALD)at a growth temperature of 250°C.The stoichiometric a-Ga_(2)O_(3) thin film with a low defect density is achieved owing to the mild PE-ALD condition.As a result,the fabricated Au/a-Ga_(2)O_(3)/Au photodetector shows a fast time response,high responsivity,and excellent wavelength selectivity for solar-blind photodetection.Furthermore,an ultra-thin MgO layer is deposited by PE-ALD to passivate the Au/a-Ga_(2)O_(3)/Au interface,resulting in the responsivity of 788 A/W(under 254 nm at 10 V),a 250-nm-to-400-nm rejection ratio of 9.2×10^(3),and the rise time and the decay time of 32 ms and 6 ms,respectively.These results demonstrate that the a-Ga_(2)O_(3) film grown by PE-ALD is a promising candidate for high-performance solar-blind photodetection and potentially can be integrated with Si ICs for commercial production.
基金The National Natural Science Foundation of China(No.20906012)the Fundamental Research Funds for the Central Universities(Nos.11D10522,13D110524)are greatly appreciated for the financial support
文摘An oligosaccharide donor, acetylated sept-D-glucopyranose tetradecyl carbamate, was designed and synthesized. This compound could be easily linked to hydroxyl-containing compounds through an Oglycosidic bond. Characterization of all the oligosaccharide intermediates and the final product was thoroughly discussed.
