一节高效的读写课,应建立在教师读懂文本、尊重编者意图的基础上,帮助学生感知、理解文本内涵;应捕捉学生的兴趣点,'依生定教',促进学生语言的生长,提升思维品质;应着眼于对教学内容、话题功能、文本主线的精准把握,通过语言的...一节高效的读写课,应建立在教师读懂文本、尊重编者意图的基础上,帮助学生感知、理解文本内涵;应捕捉学生的兴趣点,'依生定教',促进学生语言的生长,提升思维品质;应着眼于对教学内容、话题功能、文本主线的精准把握,通过语言的建构、巩固、发展,知识的内化、整合、综合运用,促进学生心智发展,凸显育人价值。本文以外研社新标准英语(一年级起始)六年级(上) Module2Unit1 I went to Chinatown in New York yesterday.为例,探索有效的小学高年级英语读写教学策略。展开更多
In this note we consider Wente＇s type inequality on the Lorentz-Sobolev space. If f∈L^p1,q1（Rn）,G∈L^p2,q2 （Rn） and div G ≡ 0 in the sense of distribution where 1/p1＋1/p2=1/q ＋1/q2=1,1〈p1,p2〈∞, it is k...In this note we consider Wente＇s type inequality on the Lorentz-Sobolev space. If f∈L^p1,q1（Rn）,G∈L^p2,q2 （Rn） and div G ≡ 0 in the sense of distribution where 1/p1＋1/p2=1/q ＋1/q2=1,1〈p1,p2〈∞, it is known that G. f belongs to the Hardy space H1 and furthermore ‖G· f‖N1≤C‖ f‖Lp1,q1（R2）‖G‖Lp2,q2（R2）Reader can see [9] Section 4 Here we give a new proof of this result. Our proof depends on an estimate of a maximal operator on the Lorentz space which is of some independent interest. Finally, we use this inequality to get a generalisation of Bethuel＇s inequality.展开更多
Sugarcane red rot caused by Colletotrichum falcatum Went is one of the important fungal diseases causing significant losses to sugarcane production,commonly known as "cancer" of sugarcane.It has risen from a...Sugarcane red rot caused by Colletotrichum falcatum Went is one of the important fungal diseases causing significant losses to sugarcane production,commonly known as "cancer" of sugarcane.It has risen from a minor disease to a major disease,resulting in the death of sugarcane in Lincang,Menglian and Shiping sugarcane areas in Yunnan Province.Due to the frequent variation of this pathogen,it is difficult to control,the pesticide control effect is not ideal at present,and there is still no effective and radical cure measures.The research on the variation of C.falcatum and sugarcane disease resistance is the only way to achieve the sustainable control of sugarcane disease.This paper mainly reviewed the genetic variation on the morphological,pathogenic and molecular variation of C.falcatum,and rapid molecular detection methods,and sugarcane disease resistance research in combination with the latest research at home and abroad.An outlook for further research on sugarcane red rot in the future was also given,to provide a theoretical basis for the research and control of sugarcane red rot in China.展开更多
In this note,the authors resolve an evolutionary Wente's problem associated to heat equation,where the special integrability of det▽u for u∈H^1(R^2,R^2)is used.
文摘一节高效的读写课,应建立在教师读懂文本、尊重编者意图的基础上,帮助学生感知、理解文本内涵;应捕捉学生的兴趣点,'依生定教',促进学生语言的生长,提升思维品质;应着眼于对教学内容、话题功能、文本主线的精准把握,通过语言的建构、巩固、发展,知识的内化、整合、综合运用,促进学生心智发展,凸显育人价值。本文以外研社新标准英语(一年级起始)六年级(上) Module2Unit1 I went to Chinatown in New York yesterday.为例,探索有效的小学高年级英语读写教学策略。
基金Supported by the National Natural Science Foundation of China(11271330,11371136,11471288)the Zhejiang Natural Science Foundation of China(LY14A010015)China Scholarship Council
文摘In this note we consider Wente＇s type inequality on the Lorentz-Sobolev space. If f∈L^p1,q1（Rn）,G∈L^p2,q2 （Rn） and div G ≡ 0 in the sense of distribution where 1/p1＋1/p2=1/q ＋1/q2=1,1〈p1,p2〈∞, it is known that G. f belongs to the Hardy space H1 and furthermore ‖G· f‖N1≤C‖ f‖Lp1,q1（R2）‖G‖Lp2,q2（R2）Reader can see [9] Section 4 Here we give a new proof of this result. Our proof depends on an estimate of a maximal operator on the Lorentz space which is of some independent interest. Finally, we use this inequality to get a generalisation of Bethuel＇s inequality.
基金Supported by Sugar Crop Research System(CARS-170303)Training Project of Yunling Industry and Technology Leading Talents(2018LJRC56)Special Fund of Agricultural Industry Research System in Yunnan Province
文摘Sugarcane red rot caused by Colletotrichum falcatum Went is one of the important fungal diseases causing significant losses to sugarcane production,commonly known as "cancer" of sugarcane.It has risen from a minor disease to a major disease,resulting in the death of sugarcane in Lincang,Menglian and Shiping sugarcane areas in Yunnan Province.Due to the frequent variation of this pathogen,it is difficult to control,the pesticide control effect is not ideal at present,and there is still no effective and radical cure measures.The research on the variation of C.falcatum and sugarcane disease resistance is the only way to achieve the sustainable control of sugarcane disease.This paper mainly reviewed the genetic variation on the morphological,pathogenic and molecular variation of C.falcatum,and rapid molecular detection methods,and sugarcane disease resistance research in combination with the latest research at home and abroad.An outlook for further research on sugarcane red rot in the future was also given,to provide a theoretical basis for the research and control of sugarcane red rot in China.
文摘In this note,the authors resolve an evolutionary Wente's problem associated to heat equation,where the special integrability of det▽u for u∈H^1(R^2,R^2)is used.
