将儿童数学学业情绪问卷（Achievement Emotions Questionnaire for Pre-Adolescents,AEQ-PA）修订为适用于中国小学生的小学生数学学业情绪问卷（Achievement Emotions Questionnaire for Elementary School Students,AEQ-ESM-C）,并...将儿童数学学业情绪问卷（Achievement Emotions Questionnaire for Pre-Adolescents,AEQ-PA）修订为适用于中国小学生的小学生数学学业情绪问卷（Achievement Emotions Questionnaire for Elementary School Students,AEQ-ESM-C）,并在中国小学生群体中检验该问卷的效度和信度,为测量小学数学核心素养的情感态度提供一个有效工具.对小学生数学学业情绪问卷进行信度分析和验证性因素分析.修订后的课堂情境数学学业情绪分问卷以及测验情境数学学业情绪分问卷均具有良好的信度、结构效度、会聚效度、区分效度和效标关联效度.修订后的中文版小学生数学学业情绪问卷可作为中国小学生数学学业情绪的测量工具.展开更多
Dear Editor,Semen analysis is a basic test to assess male fertility and is a fundamental test in assisted reproductive technology.From the first publication of World Health Organization(WHO)Laboratory Manual of Human ...Dear Editor,Semen analysis is a basic test to assess male fertility and is a fundamental test in assisted reproductive technology.From the first publication of World Health Organization(WHO)Laboratory Manual of Human Semen and Sperm-Cervical Mucus Interaction in 1980,to the publication of the WHO Manual,6th edition in 2021,these 40 years have been recognized as providing a global standard that is widely used in research and clinical laboratories worldwide.The WHO Manual,6th edition in Chinese,which we have been authorized by the WHO to translate,will be published soon.展开更多
In December 2007,I was invited by the Chinese Academy of Sciences in Beijing to deliver a lecture on the results of my PhD,which I completed in 2006,regarding the welfare of dolphins under human care.The professor int...In December 2007,I was invited by the Chinese Academy of Sciences in Beijing to deliver a lecture on the results of my PhD,which I completed in 2006,regarding the welfare of dolphins under human care.The professor introduced me and admitted he did not know how to translate“animal welfare”(动物福利,dongwu fuli)into Chinese.展开更多
Conventional ptychography translates an object through a localized probe beam to widen the field of view in real space.Fourier ptychography translates the object spectrum through a pupil aperture to expand the Fourier...Conventional ptychography translates an object through a localized probe beam to widen the field of view in real space.Fourier ptychography translates the object spectrum through a pupil aperture to expand the Fourier bandwidth in reciprocal space.Here we report an imaging modality,termed synthetic aperture ptychography(SAP),to get the best of both techniques.In SAP,we illuminate a stationary object using an extended plane wave and translate a coded image sensor at the far field for data acquisition.The coded layer attached on the sensor modulates the object exit waves and serves as an effective ptychographic probe for phase retrieval.The sensor translation process in SAP synthesizes a large complex-valued wavefront at the intermediate aperture plane.By propagating this wavefront back to the object plane,we can widen the field of view in real space and expand the Fourier bandwidth in reciprocal space simultaneously.We validate the SAP approach with transmission targets and reflection silicon microchips.A 20-mm aperture was synthesized using a 5-mm sensor,achieving a fourfold gain in resolution and 16-fold gain in field of view for object recovery.In addition,the thin sample requirement in ptychography is no longer required in SAP.One can digitally propagate the recovered exit wave to any axial position for post-acquisition refocusing.The SAP scheme offers a solution for far-field sub-diffraction imaging without using lenses.It can be adopted in coherent diffraction imaging setups with radiation sources from visible light,extreme ultraviolet,and X-ray,to electron.展开更多
The Yuehe historical area in Jiaxing,Zhejiang Province,is a microcosm of riverside towns located south of the Yangtze River.Winding rivers embrace the ancient town,which dates back to the Ming and Qing dynasties(1368-...The Yuehe historical area in Jiaxing,Zhejiang Province,is a microcosm of riverside towns located south of the Yangtze River.Winding rivers embrace the ancient town,which dates back to the Ming and Qing dynasties(1368-1911),like a crescent moon,hence its name,which literally translates as"Moon River."展开更多
Celebrity chef Pierre Gagnaire,a Frenchman studded with 14 Michelin stars at time of writing,opened his first Chinese mainland restaurant inside the Capella Shanghai,Jian Ye Li estate in 2017.Befitting of its stately ...Celebrity chef Pierre Gagnaire,a Frenchman studded with 14 Michelin stars at time of writing,opened his first Chinese mainland restaurant inside the Capella Shanghai,Jian Ye Li estate in 2017.Befitting of its stately surrounds,the restaurant'Le Comptoir de Pierre Gagnaire'-which broadly translates to'Pierre Gagnaire's Bar'-is a super casual,soup and sandwich sort of place,as you can imagine.展开更多
The pregenomic RNA(pgRNA)of hepatitis B virus(HBV)serves not only as a bicistronic message RNA to translate core protein(Cp)and DNA polymerase(Pol),but also as the template for reverse transcriptional replication of v...The pregenomic RNA(pgRNA)of hepatitis B virus(HBV)serves not only as a bicistronic message RNA to translate core protein(Cp)and DNA polymerase(Pol),but also as the template for reverse transcriptional replication of viral DNA upon packaging into nucleocapsid.Although it is well known that pgRNA translates much more Cp than Pol,the molecular mechanism underlying the regulation of Cp and Pol translation efficiency from pgRNA remains elusive.展开更多
文摘将儿童数学学业情绪问卷（Achievement Emotions Questionnaire for Pre-Adolescents,AEQ-PA）修订为适用于中国小学生的小学生数学学业情绪问卷（Achievement Emotions Questionnaire for Elementary School Students,AEQ-ESM-C）,并在中国小学生群体中检验该问卷的效度和信度,为测量小学数学核心素养的情感态度提供一个有效工具.对小学生数学学业情绪问卷进行信度分析和验证性因素分析.修订后的课堂情境数学学业情绪分问卷以及测验情境数学学业情绪分问卷均具有良好的信度、结构效度、会聚效度、区分效度和效标关联效度.修订后的中文版小学生数学学业情绪问卷可作为中国小学生数学学业情绪的测量工具.
基金supported by Nonprofit Central Research Institute Fund of National Research Institute for Family Planning(2022GJM02 and 2022GJZD01).
文摘Dear Editor,Semen analysis is a basic test to assess male fertility and is a fundamental test in assisted reproductive technology.From the first publication of World Health Organization(WHO)Laboratory Manual of Human Semen and Sperm-Cervical Mucus Interaction in 1980,to the publication of the WHO Manual,6th edition in 2021,these 40 years have been recognized as providing a global standard that is widely used in research and clinical laboratories worldwide.The WHO Manual,6th edition in Chinese,which we have been authorized by the WHO to translate,will be published soon.
文摘In December 2007,I was invited by the Chinese Academy of Sciences in Beijing to deliver a lecture on the results of my PhD,which I completed in 2006,regarding the welfare of dolphins under human care.The professor introduced me and admitted he did not know how to translate“animal welfare”(动物福利,dongwu fuli)into Chinese.
文摘Conventional ptychography translates an object through a localized probe beam to widen the field of view in real space.Fourier ptychography translates the object spectrum through a pupil aperture to expand the Fourier bandwidth in reciprocal space.Here we report an imaging modality,termed synthetic aperture ptychography(SAP),to get the best of both techniques.In SAP,we illuminate a stationary object using an extended plane wave and translate a coded image sensor at the far field for data acquisition.The coded layer attached on the sensor modulates the object exit waves and serves as an effective ptychographic probe for phase retrieval.The sensor translation process in SAP synthesizes a large complex-valued wavefront at the intermediate aperture plane.By propagating this wavefront back to the object plane,we can widen the field of view in real space and expand the Fourier bandwidth in reciprocal space simultaneously.We validate the SAP approach with transmission targets and reflection silicon microchips.A 20-mm aperture was synthesized using a 5-mm sensor,achieving a fourfold gain in resolution and 16-fold gain in field of view for object recovery.In addition,the thin sample requirement in ptychography is no longer required in SAP.One can digitally propagate the recovered exit wave to any axial position for post-acquisition refocusing.The SAP scheme offers a solution for far-field sub-diffraction imaging without using lenses.It can be adopted in coherent diffraction imaging setups with radiation sources from visible light,extreme ultraviolet,and X-ray,to electron.
文摘The Yuehe historical area in Jiaxing,Zhejiang Province,is a microcosm of riverside towns located south of the Yangtze River.Winding rivers embrace the ancient town,which dates back to the Ming and Qing dynasties(1368-1911),like a crescent moon,hence its name,which literally translates as"Moon River."
文摘Celebrity chef Pierre Gagnaire,a Frenchman studded with 14 Michelin stars at time of writing,opened his first Chinese mainland restaurant inside the Capella Shanghai,Jian Ye Li estate in 2017.Befitting of its stately surrounds,the restaurant'Le Comptoir de Pierre Gagnaire'-which broadly translates to'Pierre Gagnaire's Bar'-is a super casual,soup and sandwich sort of place,as you can imagine.
基金This work is supported by grants from the National Natural Science Foundation of China(82272315)the Natural Science Foundation of Beijing Municipality(7222108)National Key R&D Program of China(2022YFA1303600).
文摘The pregenomic RNA(pgRNA)of hepatitis B virus(HBV)serves not only as a bicistronic message RNA to translate core protein(Cp)and DNA polymerase(Pol),but also as the template for reverse transcriptional replication of viral DNA upon packaging into nucleocapsid.Although it is well known that pgRNA translates much more Cp than Pol,the molecular mechanism underlying the regulation of Cp and Pol translation efficiency from pgRNA remains elusive.
