通过评介杰克·C·理查兹(Jack C.Richards)于2017年所著的《语言教学中的课程开发》(第二版)(Curriculum Development in Language Teaching<Second Edition>)一书,首先简要介绍该书的内容,其次在与第一版对比的基础上,...通过评介杰克·C·理查兹(Jack C.Richards)于2017年所著的《语言教学中的课程开发》(第二版)(Curriculum Development in Language Teaching<Second Edition>)一书,首先简要介绍该书的内容,其次在与第一版对比的基础上,在课程本质的生态拓展和技术支持下的课程开发新趋势两个方面进行解读和评析,旨在为我国外语课程开发提供新视角。展开更多
The process of double fertilization and the characters of embryo and endosperm development in an autotetraploid polyembryonic mutant rice IR36-Shuang were studied with a laser scanning confocal microscopy. Some abnorm...The process of double fertilization and the characters of embryo and endosperm development in an autotetraploid polyembryonic mutant rice IR36-Shuang were studied with a laser scanning confocal microscopy. Some abnormalities including degenerated ovary, abortive embryo sac, single fertilization, double-ovule and double-embryo and so on. were found dudng double fertilization and embryo development in IR36-Shuang. The rate of the abnormalities was 46.67% in IR36-Shuang, significantly higher than that in the control, an autotetraploid rice line IR36-4X （33.00%）. Cytological and embryonic evidences were provided for seed setting decline and the initiation of additional embryo in IR36-Shuang.展开更多
The present paper reveals the pivotal challenges of fast changing global work environment and industrial needs. Employability skills need to be checked rather than unemployment problem in India. The paper further aims...The present paper reveals the pivotal challenges of fast changing global work environment and industrial needs. Employability skills need to be checked rather than unemployment problem in India. The paper further aims to explore the necessary skills to the challenges of globalizing trends. The issues, approaches, and remedial strategies are focused with reference to the people＇s skills. As the reflections of quality and competence depend on transparency and accountability of the organization, it is necessary to improve the required skills which enhance the levels of confidence. The potential employer＇s requirements are need to be worked very keenly by the institutions. The paper also deals with the effective learning process, which is at par with global counter parts. Exposure to the universal student-centered learning is emphasized to enhance the very crucial pace of work place. Finally this paper studies effective micro and macro issues regarding the dynamics of the industry by applying a broad range of employability skills complementing the technical skills.展开更多
Histiocytes have a pivotal role in wound repair and intestinal epithelial recovery-the most important goal to sustain gut functionality.Yet,an in vivo description of colonic histiocytes by confocal laser endomicroscop...Histiocytes have a pivotal role in wound repair and intestinal epithelial recovery-the most important goal to sustain gut functionality.Yet,an in vivo description of colonic histiocytes by confocal laser endomicroscopy(CLE) is missing.Here,we report the case of a 45-yearsold male patient who was referred to our clinic with weight loss and a history of two consecutive Clostridium difficile colitis episodes,the latter cured 3 wk before present admission.Stool microbiology was negative.Conventional colonoscopy showed atrophy and a light mucosal oedema in the distal colon.During on-going endoscopy,we performed a fluorescein-aided CLE which revealed large polygonal(histiocytes-like) cells with copious cytoplasm and large nuclei in the lamina propria of the sigmoid colon as well as regenerative epithelial changes.Histopathological assessment of biopsies from the same areas confirmed the endomicroscopical findings:Periodic acid-Schiff-and CD68-positive foamy histiocytes in the colonic lamina propria and an advanced epithelial recovery.Since stool microbiology was repeatedly negative and polymerase chain reaction-analysis from colonic biopsies could not detect any mRNA for Thropheryma whippleii and common pathogens,we interpreted this particular setting as a mucosal healing process after consecutive Clostridium difficile infections.In conclusion,by describing these colonic histiocytes,we highlight the clinical usefulness of CLE in describing the entity of histiocytes in vivo and in real-time during the process of post-infectious mucosal healing in the colon.展开更多
This research was performed in order to allow the study of the chemical composition influence of the coking process load on the efficiency and the quality of coke. For this reason, the coking of the following loads wa...This research was performed in order to allow the study of the chemical composition influence of the coking process load on the efficiency and the quality of coke. For this reason, the coking of the following loads was realized： Atmospheric residue （RAT）, vacuum Residue （RSV） and catalytic Residue of cracking （RCC）. （The residues are obtained from an Algerian crude oil）. As the oil residues are rich for their strongly polar composition, such as the asphaltene resins, and complex structures units （SCU）, which has a role in the formation of coke, and as the dispersion of these latter improves the quality of coke, a study on the stability of aggregation was carried out by the addition of one stabilizer （oil Extract） in the coking process load, The Compounding （Extracted from/RCC oil） has been drived to the best efficiency of coke. The study consists of the influence this is characterized by the analyses Infra-red （IR） and x-ray diffraction （XRD）.展开更多
In this work,a focused ion beam(FIB)-scanning electron microscopy(SEM) dual beam system was successfully built by integrating a FIB column and a graphics generator onto a SEM.Real-time observation can be realized by S...In this work,a focused ion beam(FIB)-scanning electron microscopy(SEM) dual beam system was successfully built by integrating a FIB column and a graphics generator onto a SEM.Real-time observation can be realized by SEM during the process of FIB milling.All kinds of graphics at nanoscale regime,such as lines,characters,and pictures,were achieved under the control of graphics generator.Moreover,the FIB milling line width can be reduced nearly 27% by the introduction of simultaneous electron beam,and a line width as small as 10 nm was achieved.The numerical analysis indicates that the significant improvement on line width is induced by the Coulomb interaction between the electrons and ions.展开更多
文摘通过评介杰克·C·理查兹(Jack C.Richards)于2017年所著的《语言教学中的课程开发》(第二版)(Curriculum Development in Language Teaching<Second Edition>)一书,首先简要介绍该书的内容,其次在与第一版对比的基础上,在课程本质的生态拓展和技术支持下的课程开发新趋势两个方面进行解读和评析,旨在为我国外语课程开发提供新视角。
基金supported by the National Science & Technology Pillar Program of China in the Tenth Five-Year Plan Period(Grant No.2001BA302B)the Education Department of Henan Province, China(Grant No.2008A208019)
文摘The process of double fertilization and the characters of embryo and endosperm development in an autotetraploid polyembryonic mutant rice IR36-Shuang were studied with a laser scanning confocal microscopy. Some abnormalities including degenerated ovary, abortive embryo sac, single fertilization, double-ovule and double-embryo and so on. were found dudng double fertilization and embryo development in IR36-Shuang. The rate of the abnormalities was 46.67% in IR36-Shuang, significantly higher than that in the control, an autotetraploid rice line IR36-4X （33.00%）. Cytological and embryonic evidences were provided for seed setting decline and the initiation of additional embryo in IR36-Shuang.
文摘The present paper reveals the pivotal challenges of fast changing global work environment and industrial needs. Employability skills need to be checked rather than unemployment problem in India. The paper further aims to explore the necessary skills to the challenges of globalizing trends. The issues, approaches, and remedial strategies are focused with reference to the people＇s skills. As the reflections of quality and competence depend on transparency and accountability of the organization, it is necessary to improve the required skills which enhance the levels of confidence. The potential employer＇s requirements are need to be worked very keenly by the institutions. The paper also deals with the effective learning process, which is at par with global counter parts. Exposure to the universal student-centered learning is emphasized to enhance the very crucial pace of work place. Finally this paper studies effective micro and macro issues regarding the dynamics of the industry by applying a broad range of employability skills complementing the technical skills.
文摘Histiocytes have a pivotal role in wound repair and intestinal epithelial recovery-the most important goal to sustain gut functionality.Yet,an in vivo description of colonic histiocytes by confocal laser endomicroscopy(CLE) is missing.Here,we report the case of a 45-yearsold male patient who was referred to our clinic with weight loss and a history of two consecutive Clostridium difficile colitis episodes,the latter cured 3 wk before present admission.Stool microbiology was negative.Conventional colonoscopy showed atrophy and a light mucosal oedema in the distal colon.During on-going endoscopy,we performed a fluorescein-aided CLE which revealed large polygonal(histiocytes-like) cells with copious cytoplasm and large nuclei in the lamina propria of the sigmoid colon as well as regenerative epithelial changes.Histopathological assessment of biopsies from the same areas confirmed the endomicroscopical findings:Periodic acid-Schiff-and CD68-positive foamy histiocytes in the colonic lamina propria and an advanced epithelial recovery.Since stool microbiology was repeatedly negative and polymerase chain reaction-analysis from colonic biopsies could not detect any mRNA for Thropheryma whippleii and common pathogens,we interpreted this particular setting as a mucosal healing process after consecutive Clostridium difficile infections.In conclusion,by describing these colonic histiocytes,we highlight the clinical usefulness of CLE in describing the entity of histiocytes in vivo and in real-time during the process of post-infectious mucosal healing in the colon.
文摘This research was performed in order to allow the study of the chemical composition influence of the coking process load on the efficiency and the quality of coke. For this reason, the coking of the following loads was realized： Atmospheric residue （RAT）, vacuum Residue （RSV） and catalytic Residue of cracking （RCC）. （The residues are obtained from an Algerian crude oil）. As the oil residues are rich for their strongly polar composition, such as the asphaltene resins, and complex structures units （SCU）, which has a role in the formation of coke, and as the dispersion of these latter improves the quality of coke, a study on the stability of aggregation was carried out by the addition of one stabilizer （oil Extract） in the coking process load, The Compounding （Extracted from/RCC oil） has been drived to the best efficiency of coke. The study consists of the influence this is characterized by the analyses Infra-red （IR） and x-ray diffraction （XRD）.
基金supported by the National Natural Science Foundation of China (Grant No. 50971011)Beijing Natural Science Foundation (Grant No. 1102025)+1 种基金Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20091102110038)the Fundamental Research Funds for the Central Universities (Grant No. 11174023)
文摘In this work,a focused ion beam(FIB)-scanning electron microscopy(SEM) dual beam system was successfully built by integrating a FIB column and a graphics generator onto a SEM.Real-time observation can be realized by SEM during the process of FIB milling.All kinds of graphics at nanoscale regime,such as lines,characters,and pictures,were achieved under the control of graphics generator.Moreover,the FIB milling line width can be reduced nearly 27% by the introduction of simultaneous electron beam,and a line width as small as 10 nm was achieved.The numerical analysis indicates that the significant improvement on line width is induced by the Coulomb interaction between the electrons and ions.
