The survey aims to collect clinical questions for the clinical practice guideline on acupuncture and moxibustion in treating urinary incontinence in women.The survey is consisted of multiple-choice questions,ranking q...The survey aims to collect clinical questions for the clinical practice guideline on acupuncture and moxibustion in treating urinary incontinence in women.The survey is consisted of multiple-choice questions,ranking questions and open questions.We hope you can help us to complete the questions using PICO(Patients,Intervention,Comparator and Outcome)framework referring to the examples.The survey might take about 30 min,and the responses from you will greatly contribute to the formation of this guideline.展开更多
目的观察电针百会、风府穴对焦虑模型大鼠行为学及脑源性神经营养因子(Brain-derived neuro⁃trophic factor,BDNF)、促肾上腺皮质释放激素(Corticotropin releasing hormone,CRH)、皮质醇(Cortisol,CORT)表达的影响,探讨针刺治疗焦虑障...目的观察电针百会、风府穴对焦虑模型大鼠行为学及脑源性神经营养因子(Brain-derived neuro⁃trophic factor,BDNF)、促肾上腺皮质释放激素(Corticotropin releasing hormone,CRH)、皮质醇(Cortisol,CORT)表达的影响,探讨针刺治疗焦虑障碍效应及作用机制。方法将30只SPF级SD雄性大鼠按随机数字表法分为正常组、模型组、电针组,每组各10只。采用慢性不可预见性应激刺激法制备焦虑大鼠模型。电针组取“百会”“风府”穴进行电针操作,隔日1次,20 min/次,造模与干预共计15 d。15 d后,采用高架十字迷宫实验(Elevated plus maze,EPM)和自发活动旷场实验(Open field test,OFT)测试大鼠行为学变化,HE染色法观察大鼠海马形态,免疫组化法观察海马组织内BDNF蛋白表达,酶联免疫吸附法检测血清BDNF、CRH与CORT的含量。结果与正常组比较,模型组大鼠进入开臂次数百分比(The percentage of open arm entry,OE%)、开臂停留时间百分比(The per⁃centage of open arm time,OT%)明显降低,差异有统计学意义(P<0.05),水平得分、垂直得分明显下降,差异有统计学意义(P<0.01),血清BDNF、CRH、CORT含量明显升高,差异有统计学意义(P<0.01),海马神经元数量和BDNF蛋白阳性明显减少,差异有统计学意义(P<0.05);与模型组比较,电针组OE%、OT%值明显升高,差异有统计学意义(P<0.01),水平得分、垂直得分明显升高,差异有统计学意义(P<0.01),海马神经元数量和BDNF蛋白阳性含量明显增加,差异有统计学意义(P<0.05),血清BDNF、CRH、CORT含量明显降低,差异有统计学意义(P<0.01)。结论电针可改善焦虑大鼠的焦虑样行为症状,其抗焦虑的机制可能与上调海马BDNF水平,抑制血清中BDNF、CORT、CRH的表达,使下丘脑-垂体-肾上腺(Hypothalamic–pituitary–adrenal,HPA)轴亢进受抑有关。展开更多
Background：The awareness,treatment and prevention of chronic diseases are generally poor among the elderly population of China,whereas the prevention and control of chronic diseases in elderly veteran communities hav...Background：The awareness,treatment and prevention of chronic diseases are generally poor among the elderly population of China,whereas the prevention and control of chronic diseases in elderly veteran communities have been ongoing for more than 30 years.Therefore,investigating the awareness status of chronic disabling neurological diseases （CDND） and common chronic diseases （CCD） among elderly veterans may provide references for related programs among the elderly in the general population.Methods：A cross-sectional survey was conducted among veterans ≥60 years old in veteran communities in Beijing.The awareness of preventive strategies against dementia,Alzheimer＆#39;s disease （AD）,Parkinson＆#39;s disease （PD）,sleep disorders,cerebrovascular disease （CVD） and CCD such as hypertension,and the approaches used to access this information,including media,word of mouth （verbal communication among the elderly） and health care professionals,were investigated via face-to-face interviews.Results：The awareness rates for CCD and CVD were approximately 100%,but that forAD was the lowest at 〈10%.The awareness rates for sleep disorders,PD and dementia,were 51.0-89.4%.Media was the most commonly selected mode of communication by which veterans acquired knowledge about CCD and CVD.Media was used by approximately 80% of veterans.Both health care professionals and word of mouth were used by approximately 50% of veterans.With respect to the source of information about CDND excluding AD,the rates of the use of health care professionals,word of mouth and media were 10.6-28.2%,56.5-76.5%,and approximately 50%,respectively.Conclusions：The awareness of CDND among elderly veterans was significantly lower than that of CCD.More information about CDND should be disseminated by health care professionals.Appropriate guidance will promote the rapid and extensive dissemination of information about the prevention of CDND by media and word-of-mouth peer education.展开更多
We investigate a novel Ga As-based laser power converters(LPCs) grown by metal-organic chemical vapor deposition(MOCVD),which uses a single monolithic structure with six junctions connected by tunnel junctions to obta...We investigate a novel Ga As-based laser power converters(LPCs) grown by metal-organic chemical vapor deposition(MOCVD),which uses a single monolithic structure with six junctions connected by tunnel junctions to obtain a high output voltage. The LPCs with diameters of active aperture of 2 mm and 4 mm were fabricated and tested. The test results show that under an 808 nm laser,two LPCs both show an open circuit voltage of above 6.5 V. A maximum power conversion efficiency of 50.2% is obtained by 2 mm sample with laser power of 0.256 W,and an output electric power of 1.9 W with laser power of 4.85 W is obtained by 4 mm sample. The performances of the LPCs are deteriorated under illumination of high flux,and the 4 mm sample shows a higher laser power tolerance.展开更多
A series of Fe-Ni-P alloys with different Ni-P contents were prepared by micro-press sintering,and the influence of the contents on the final microstructure and mechanical properties was evaluated.Sample Fe-34(Ni,P)co...A series of Fe-Ni-P alloys with different Ni-P contents were prepared by micro-press sintering,and the influence of the contents on the final microstructure and mechanical properties was evaluated.Sample Fe-34(Ni,P)contains the highest Ni-P content(34.18 wt.%)and its relative density reaches 98.75%,which is attributed to the introduction of an appropriate amount of liquid phase during the sintering process.The main phase of the sample is transformed from a to c phase under the gradual increment of Ni-P content.Simultaneously,a large number of phosphides that have strong inhibition on the migration and expansion of grain boundaries are precipitated on the matrix,and synergistic effect with low-temperature sintering results in partial grain refinement.The samples with high Ni-P content have a high volume of c phase,which makes the sample show the optimal plasticity under the maximum compressive load.And the fracture mode has also changed from brittle fracture to a mixed mode of brittle and ductile fracture.The decrease in the proportion of a phase has a weakening effect on the strength,but the refinement of the grain and the increase in the phosphide are the factors that increase the strength,so that the degree of manifestation varies in different Ni-P levels.展开更多
1.Introduction.Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection has led to the outbreak of COVID-19 syndrome since December 2019,becoming prevalent worldwide afterward[1,2].Unlike severe acute resp...1.Introduction.Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection has led to the outbreak of COVID-19 syndrome since December 2019,becoming prevalent worldwide afterward[1,2].Unlike severe acute respiratory syndrome(SARS)and Middle East respiratory syndrome(MERS),which cause severe symptoms and high mortality[1],the morbidity from COVID-19 is relatively low,especially in young people[3].In China,the mortality rate was 1023 of 44,672 confirmed cases by the end of Februaryl 1,2020[4].However,there were no cases of death among 416 patients aged 0-9 years,and only 1 in 549 patients aged 10-19 years[4].The exact reasons for this clinical phenomenon remain unclear.展开更多
基金the National key R&D Program of China:No.2019YFC1712200。
文摘The survey aims to collect clinical questions for the clinical practice guideline on acupuncture and moxibustion in treating urinary incontinence in women.The survey is consisted of multiple-choice questions,ranking questions and open questions.We hope you can help us to complete the questions using PICO(Patients,Intervention,Comparator and Outcome)framework referring to the examples.The survey might take about 30 min,and the responses from you will greatly contribute to the formation of this guideline.
文摘目的观察电针百会、风府穴对焦虑模型大鼠行为学及脑源性神经营养因子(Brain-derived neuro⁃trophic factor,BDNF)、促肾上腺皮质释放激素(Corticotropin releasing hormone,CRH)、皮质醇(Cortisol,CORT)表达的影响,探讨针刺治疗焦虑障碍效应及作用机制。方法将30只SPF级SD雄性大鼠按随机数字表法分为正常组、模型组、电针组,每组各10只。采用慢性不可预见性应激刺激法制备焦虑大鼠模型。电针组取“百会”“风府”穴进行电针操作,隔日1次,20 min/次,造模与干预共计15 d。15 d后,采用高架十字迷宫实验(Elevated plus maze,EPM)和自发活动旷场实验(Open field test,OFT)测试大鼠行为学变化,HE染色法观察大鼠海马形态,免疫组化法观察海马组织内BDNF蛋白表达,酶联免疫吸附法检测血清BDNF、CRH与CORT的含量。结果与正常组比较,模型组大鼠进入开臂次数百分比(The percentage of open arm entry,OE%)、开臂停留时间百分比(The per⁃centage of open arm time,OT%)明显降低,差异有统计学意义(P<0.05),水平得分、垂直得分明显下降,差异有统计学意义(P<0.01),血清BDNF、CRH、CORT含量明显升高,差异有统计学意义(P<0.01),海马神经元数量和BDNF蛋白阳性明显减少,差异有统计学意义(P<0.05);与模型组比较,电针组OE%、OT%值明显升高,差异有统计学意义(P<0.01),水平得分、垂直得分明显升高,差异有统计学意义(P<0.01),海马神经元数量和BDNF蛋白阳性含量明显增加,差异有统计学意义(P<0.05),血清BDNF、CRH、CORT含量明显降低,差异有统计学意义(P<0.01)。结论电针可改善焦虑大鼠的焦虑样行为症状,其抗焦虑的机制可能与上调海马BDNF水平,抑制血清中BDNF、CORT、CRH的表达,使下丘脑-垂体-肾上腺(Hypothalamic–pituitary–adrenal,HPA)轴亢进受抑有关。
文摘Background：The awareness,treatment and prevention of chronic diseases are generally poor among the elderly population of China,whereas the prevention and control of chronic diseases in elderly veteran communities have been ongoing for more than 30 years.Therefore,investigating the awareness status of chronic disabling neurological diseases （CDND） and common chronic diseases （CCD） among elderly veterans may provide references for related programs among the elderly in the general population.Methods：A cross-sectional survey was conducted among veterans ≥60 years old in veteran communities in Beijing.The awareness of preventive strategies against dementia,Alzheimer＆#39;s disease （AD）,Parkinson＆#39;s disease （PD）,sleep disorders,cerebrovascular disease （CVD） and CCD such as hypertension,and the approaches used to access this information,including media,word of mouth （verbal communication among the elderly） and health care professionals,were investigated via face-to-face interviews.Results：The awareness rates for CCD and CVD were approximately 100%,but that forAD was the lowest at 〈10%.The awareness rates for sleep disorders,PD and dementia,were 51.0-89.4%.Media was the most commonly selected mode of communication by which veterans acquired knowledge about CCD and CVD.Media was used by approximately 80% of veterans.Both health care professionals and word of mouth were used by approximately 50% of veterans.With respect to the source of information about CDND excluding AD,the rates of the use of health care professionals,word of mouth and media were 10.6-28.2%,56.5-76.5%,and approximately 50%,respectively.Conclusions：The awareness of CDND among elderly veterans was significantly lower than that of CCD.More information about CDND should be disseminated by health care professionals.Appropriate guidance will promote the rapid and extensive dissemination of information about the prevention of CDND by media and word-of-mouth peer education.
基金supported by the National Natural Science Foundation of China(Nos.61376065 and 61604171)Zhongtian Technology Group Co.Ltd
文摘We investigate a novel Ga As-based laser power converters(LPCs) grown by metal-organic chemical vapor deposition(MOCVD),which uses a single monolithic structure with six junctions connected by tunnel junctions to obtain a high output voltage. The LPCs with diameters of active aperture of 2 mm and 4 mm were fabricated and tested. The test results show that under an 808 nm laser,two LPCs both show an open circuit voltage of above 6.5 V. A maximum power conversion efficiency of 50.2% is obtained by 2 mm sample with laser power of 0.256 W,and an output electric power of 1.9 W with laser power of 4.85 W is obtained by 4 mm sample. The performances of the LPCs are deteriorated under illumination of high flux,and the 4 mm sample shows a higher laser power tolerance.
基金supported by National Key Research and Development Program of China(Grant No.2018YFB2001901)Sichuan Science and Technology Program(Grant No.2020YFG0370)Fundamental Research Funds for the Central Universities of China(Grant No.2682020CX05).
文摘A series of Fe-Ni-P alloys with different Ni-P contents were prepared by micro-press sintering,and the influence of the contents on the final microstructure and mechanical properties was evaluated.Sample Fe-34(Ni,P)contains the highest Ni-P content(34.18 wt.%)and its relative density reaches 98.75%,which is attributed to the introduction of an appropriate amount of liquid phase during the sintering process.The main phase of the sample is transformed from a to c phase under the gradual increment of Ni-P content.Simultaneously,a large number of phosphides that have strong inhibition on the migration and expansion of grain boundaries are precipitated on the matrix,and synergistic effect with low-temperature sintering results in partial grain refinement.The samples with high Ni-P content have a high volume of c phase,which makes the sample show the optimal plasticity under the maximum compressive load.And the fracture mode has also changed from brittle fracture to a mixed mode of brittle and ductile fracture.The decrease in the proportion of a phase has a weakening effect on the strength,but the refinement of the grain and the increase in the phosphide are the factors that increase the strength,so that the degree of manifestation varies in different Ni-P levels.
基金the Chinese National Mega Science and Technology Program on Infectious Diseases(2018ZX10731301-001-004)Science and Technology Commission of Shanghai Municipality(20JC1410200)+2 种基金Shanghai Academic Research Leader Project(2018XD1403300)Shanghai Municipal Commission of Economic and Informatization(GYQJ-2020-FY-06)the Emergency Project of Shanghai Institute of Immunology.
文摘1.Introduction.Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection has led to the outbreak of COVID-19 syndrome since December 2019,becoming prevalent worldwide afterward[1,2].Unlike severe acute respiratory syndrome(SARS)and Middle East respiratory syndrome(MERS),which cause severe symptoms and high mortality[1],the morbidity from COVID-19 is relatively low,especially in young people[3].In China,the mortality rate was 1023 of 44,672 confirmed cases by the end of Februaryl 1,2020[4].However,there were no cases of death among 416 patients aged 0-9 years,and only 1 in 549 patients aged 10-19 years[4].The exact reasons for this clinical phenomenon remain unclear.
