1.设计思路语言学习应以应用为目标,着重培养学生的交际能力,并能解决实际的生活问题。在目前的英语教学里,教师一般会在同一堂课里进行'听'与'说'的技能训练,其中'听'是'说'的前提,'说'是'...1.设计思路语言学习应以应用为目标,着重培养学生的交际能力,并能解决实际的生活问题。在目前的英语教学里,教师一般会在同一堂课里进行'听'与'说'的技能训练,其中'听'是'说'的前提,'说'是'听'的延伸。在听说课里,听力策略和会话技巧是帮助学生实现交流目的和信息沟通的桥梁,这也是教学设计的重点。2.教材分析本课的内容是牛津英语9B Module 2 Unit 3 The environment的听说课。展开更多
Mice use ultrasonic vocalizations(USVs)to communicate each other and to convey their emotional state.USVs have been greatly characterized in specific life phases and contexts,such as mother isolation-induced USVs for ...Mice use ultrasonic vocalizations(USVs)to communicate each other and to convey their emotional state.USVs have been greatly characterized in specific life phases and contexts,such as mother isolation-induced USVs for pups or female-induced USVs for male mice during courtship.USVs can be acquired by means of specific tools and later analyzed on the base of both quantitative and qualitative parameters.Indeed,different ultrasonic call categories exist and have already been defined.The understanding of different calls meaning is still missing,and it will represent an essential step forward in the field of USVs.They have long been studied in the ethological context,but recently they emerged as a precious instrument to study pathologies characterized by deficits in communication,in particular neurodevelopmental disorders(NDDs),such as autism spectrum disorders.This review covers the topics of USVs characteristics in mice,contexts for USVs emission and factors that modulate their expression.A particular focus will be devoted to mouse USVs in the context of NDDs.Indeed,several NDDs murine models exist and an intense study of USVs is currently in progress,with the aim of both performing an early diagnosis and to find a pharmacological/behavioral intervention to improve patients’quality of life.展开更多
A sensing system in the near infrared region has been developed for ammonia sensing based on the wavelength modulation spectroscopy （WMS） principle. The WMS is a rather sensitive technique for detecting atomic/molec...A sensing system in the near infrared region has been developed for ammonia sensing based on the wavelength modulation spectroscopy （WMS） principle. The WMS is a rather sensitive technique for detecting atomic/molecular species, presenting the advantage that it can be used in the near-infrared region by using the optical telecommunications technology. In this technique, the laser wavelength and intensity were modulated by applying a sine wave signal through the injection current, which allowed the shift of the detection bandwidth to higher frequencies where laser intensity noise was typically lower. Two multi-pass cells based on free space light propagation with 160 cm and 16 cm of optical path length were used, allowing the redundancy operation and technology validation. This system used a diode laser with an emission wavelength at 1512.21nm, where NH3 has a strong absorption line. The control of the NH3 gas sensing system, as well as acquisition, processing and data presentation was performed.展开更多
文摘1.设计思路语言学习应以应用为目标,着重培养学生的交际能力,并能解决实际的生活问题。在目前的英语教学里,教师一般会在同一堂课里进行'听'与'说'的技能训练,其中'听'是'说'的前提,'说'是'听'的延伸。在听说课里,听力策略和会话技巧是帮助学生实现交流目的和信息沟通的桥梁,这也是教学设计的重点。2.教材分析本课的内容是牛津英语9B Module 2 Unit 3 The environment的听说课。
基金supported by Research Grant from the University of Brescia(to Memo M).
文摘Mice use ultrasonic vocalizations(USVs)to communicate each other and to convey their emotional state.USVs have been greatly characterized in specific life phases and contexts,such as mother isolation-induced USVs for pups or female-induced USVs for male mice during courtship.USVs can be acquired by means of specific tools and later analyzed on the base of both quantitative and qualitative parameters.Indeed,different ultrasonic call categories exist and have already been defined.The understanding of different calls meaning is still missing,and it will represent an essential step forward in the field of USVs.They have long been studied in the ethological context,but recently they emerged as a precious instrument to study pathologies characterized by deficits in communication,in particular neurodevelopmental disorders(NDDs),such as autism spectrum disorders.This review covers the topics of USVs characteristics in mice,contexts for USVs emission and factors that modulate their expression.A particular focus will be devoted to mouse USVs in the context of NDDs.Indeed,several NDDs murine models exist and an intense study of USVs is currently in progress,with the aim of both performing an early diagnosis and to find a pharmacological/behavioral intervention to improve patients’quality of life.
文摘A sensing system in the near infrared region has been developed for ammonia sensing based on the wavelength modulation spectroscopy （WMS） principle. The WMS is a rather sensitive technique for detecting atomic/molecular species, presenting the advantage that it can be used in the near-infrared region by using the optical telecommunications technology. In this technique, the laser wavelength and intensity were modulated by applying a sine wave signal through the injection current, which allowed the shift of the detection bandwidth to higher frequencies where laser intensity noise was typically lower. Two multi-pass cells based on free space light propagation with 160 cm and 16 cm of optical path length were used, allowing the redundancy operation and technology validation. This system used a diode laser with an emission wavelength at 1512.21nm, where NH3 has a strong absorption line. The control of the NH3 gas sensing system, as well as acquisition, processing and data presentation was performed.
