In the past two decades, the development of certain technologies, in particular Internet and mobile devices （tablet PCs, laptops, mobile telephones, etc.）, has brought about new habits of consuming audiovisual produ...In the past two decades, the development of certain technologies, in particular Internet and mobile devices （tablet PCs, laptops, mobile telephones, etc.）, has brought about new habits of consuming audiovisual products, predominantly among the youngest consumers. A new demand has arisen that has changed the channels of cinematographic exploitation and has allowed the growth of new business initiatives, such as new business models for distributing audiovisual content. The central aim of this paper is to analyse this new business model and to identify the main characteristics of the pioneering company in this sector, Netflix.展开更多
In this research project, we analyse the presence of video on the websites of regional television stations in Spain, and study the use of different internet-related audiovisual content viewing and distribution technol...In this research project, we analyse the presence of video on the websites of regional television stations in Spain, and study the use of different internet-related audiovisual content viewing and distribution technologies. The current television model is undergoing a deep-rooted change, and its future depends, to a large extent, on its presence in cyberspace. For the purposes of this study, we selected the internet homepages of the 12 regional radio-television stations which together make up the Spanish Federation of Regional Radio and Television Organizations （FORTA）. The aim was to carry out a research project using content analysis techniques.展开更多
Bone morphogenetic proteins(BMPs)are the largest subfamily of the transforming growth factor-βsuperfamily,and they play important roles in the development of numerous organs,including the inner ear.The inner ear is a...Bone morphogenetic proteins(BMPs)are the largest subfamily of the transforming growth factor-βsuperfamily,and they play important roles in the development of numerous organs,including the inner ear.The inner ear is a relatively small organ but has a highly complex structure and is involved in both hearing and balance.Here,we discuss BMPs and BMP signaling pathways and then focus on the role of BMP signal pathway regulation in the development of the inner ear and the implications this has for the treatment of human hearing loss and balance dysfunction.展开更多
Many aposematic insect species advertise their toxicity to potential predators using olfactory and auditory signals, in addition to visual signals, to produce a multimodal warning display. The olfactory signals in the...Many aposematic insect species advertise their toxicity to potential predators using olfactory and auditory signals, in addition to visual signals, to produce a multimodal warning display. The olfactory signals in these displays may have interesting effects, such as eliciting innate avoidance against novel colored prey, or improving learning and memory of defended prey. However, little is known about the effects of such ancillary signals when they are auditory rather than olfactory. The few studies that have investigated this question have provided conflicting results. The current study sought to clarify and extend understanding of the effects of prey auditory signals on avian predator responses. The domestic chick Gallus gallus domesticus was used as a model avian predator to examine how the defensive buzzing sound of a bumblebee Bombus terrestris affected the chick＇s innate avoidance behavior, and the learning and memory of prey avoidance. The results demonstrate that the buzzing sound had no effect on the predator＇s responses to unpalatable aposematically colored crumbs, suggesting that the agitated buzzing of B. terrestris may provide no additional protection from avian predators .展开更多
文摘In the past two decades, the development of certain technologies, in particular Internet and mobile devices （tablet PCs, laptops, mobile telephones, etc.）, has brought about new habits of consuming audiovisual products, predominantly among the youngest consumers. A new demand has arisen that has changed the channels of cinematographic exploitation and has allowed the growth of new business initiatives, such as new business models for distributing audiovisual content. The central aim of this paper is to analyse this new business model and to identify the main characteristics of the pioneering company in this sector, Netflix.
文摘In this research project, we analyse the presence of video on the websites of regional television stations in Spain, and study the use of different internet-related audiovisual content viewing and distribution technologies. The current television model is undergoing a deep-rooted change, and its future depends, to a large extent, on its presence in cyberspace. For the purposes of this study, we selected the internet homepages of the 12 regional radio-television stations which together make up the Spanish Federation of Regional Radio and Television Organizations （FORTA）. The aim was to carry out a research project using content analysis techniques.
基金Project Project supported by the National Key Technologies R&D Program of China(Nos.2017YFA0103900 and 2016YFC0905200)the National Natural Science Foundation of China(Nos.81620108005,8177040802,and 81622013)the Shanghaigng Talents Plan(No.18PJ1401700),China
文摘Bone morphogenetic proteins(BMPs)are the largest subfamily of the transforming growth factor-βsuperfamily,and they play important roles in the development of numerous organs,including the inner ear.The inner ear is a relatively small organ but has a highly complex structure and is involved in both hearing and balance.Here,we discuss BMPs and BMP signaling pathways and then focus on the role of BMP signal pathway regulation in the development of the inner ear and the implications this has for the treatment of human hearing loss and balance dysfunction.
文摘Many aposematic insect species advertise their toxicity to potential predators using olfactory and auditory signals, in addition to visual signals, to produce a multimodal warning display. The olfactory signals in these displays may have interesting effects, such as eliciting innate avoidance against novel colored prey, or improving learning and memory of defended prey. However, little is known about the effects of such ancillary signals when they are auditory rather than olfactory. The few studies that have investigated this question have provided conflicting results. The current study sought to clarify and extend understanding of the effects of prey auditory signals on avian predator responses. The domestic chick Gallus gallus domesticus was used as a model avian predator to examine how the defensive buzzing sound of a bumblebee Bombus terrestris affected the chick＇s innate avoidance behavior, and the learning and memory of prey avoidance. The results demonstrate that the buzzing sound had no effect on the predator＇s responses to unpalatable aposematically colored crumbs, suggesting that the agitated buzzing of B. terrestris may provide no additional protection from avian predators .
