P4C是Philosophy for Children的缩写,译为'儿童哲学',最初由马修斯.李普曼提出,目的在于培养儿童抽象思维能力,使之成为具有自我思考能力的负贲任的思想家。随后,从一个课程计划发展为一场儿童哲学探究运动。P4C这种课堂模式...P4C是Philosophy for Children的缩写,译为'儿童哲学',最初由马修斯.李普曼提出,目的在于培养儿童抽象思维能力,使之成为具有自我思考能力的负贲任的思想家。随后,从一个课程计划发展为一场儿童哲学探究运动。P4C这种课堂模式根据儿童心理发展的内在规律和不同阶段的认知能力,通过哲学的认识论及方法论启发儿童思考、启迪儿童智慧。它彻底摒弃了陈旧的教育方法,鼓励孩子根据出现的课堂焦点,准确表达自己的观点,通过分析和思辨,形成有效的哲学思考。展开更多
In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and 2019January.We ex...In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and 2019January.We extracted morphological features through image enhancement techniques and calculated the dust activity parameter,Afρ,along with dust mass loss rates and coma color indices using broadband photometric data.Our morphological analysis uncovered a spectrum of dust characteristics among the observed comets,ranging from a significant twisted structure in comet 38P/Stephan-Oterma’s coma to the regular coma envelope surrounding comet 64P/Swift-Gehrels.The Afρvalues varied between 148.8±0.3 cm for 64P/Swift-Gehrels and1118.5±6.2 cm for C/2017 M4(ATLAS)(measured within a reference aperture radius ofρ=6″),indicating a range from moderate to high activity levels.Dust mass loss rates were estimated from 328.1 kg s^(-1)for comet 64P/Swift-Gehrels to 1395.5 kg s^(-1)for comet C/2017 M4(ATLAS).The color indices of comets 38P/Stephan-Oterma and C/2017 M4(ATLAS)closely resemble the average colors of active short-period comets and active longperiod comets,respectively.In contrast,64P/Swift-Gehrels exhibits a significantly bluer hue than typical Jupiter family comets.展开更多
文摘P4C是Philosophy for Children的缩写,译为'儿童哲学',最初由马修斯.李普曼提出,目的在于培养儿童抽象思维能力,使之成为具有自我思考能力的负贲任的思想家。随后,从一个课程计划发展为一场儿童哲学探究运动。P4C这种课堂模式根据儿童心理发展的内在规律和不同阶段的认知能力,通过哲学的认识论及方法论启发儿童思考、启迪儿童智慧。它彻底摒弃了陈旧的教育方法,鼓励孩子根据出现的课堂焦点,准确表达自己的观点,通过分析和思辨,形成有效的哲学思考。
基金supported by the Natural Science Foundation of Xinjiang Uygur Autonomous Region of China(grant No.2021D01B112)Tianshan Talent Training Program through the grant 2023TSYCCX0101。
文摘In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and 2019January.We extracted morphological features through image enhancement techniques and calculated the dust activity parameter,Afρ,along with dust mass loss rates and coma color indices using broadband photometric data.Our morphological analysis uncovered a spectrum of dust characteristics among the observed comets,ranging from a significant twisted structure in comet 38P/Stephan-Oterma’s coma to the regular coma envelope surrounding comet 64P/Swift-Gehrels.The Afρvalues varied between 148.8±0.3 cm for 64P/Swift-Gehrels and1118.5±6.2 cm for C/2017 M4(ATLAS)(measured within a reference aperture radius ofρ=6″),indicating a range from moderate to high activity levels.Dust mass loss rates were estimated from 328.1 kg s^(-1)for comet 64P/Swift-Gehrels to 1395.5 kg s^(-1)for comet C/2017 M4(ATLAS).The color indices of comets 38P/Stephan-Oterma and C/2017 M4(ATLAS)closely resemble the average colors of active short-period comets and active longperiod comets,respectively.In contrast,64P/Swift-Gehrels exhibits a significantly bluer hue than typical Jupiter family comets.
