Heart rate variability （HRV） refers to the variations between consecutive heartbeats, which depend on the continuous modulation of the sympathetic and parasympathetic branches of the autonomic nervous system. HRV ha...Heart rate variability （HRV） refers to the variations between consecutive heartbeats, which depend on the continuous modulation of the sympathetic and parasympathetic branches of the autonomic nervous system. HRV has been shown to be effective as a predictor of risk after myocardial infarction and an early warning sign of diabetic neuropathy, and in the cardiology setting is now recognized to be a useful tool for risk-stratification after hospital admission and after discharge. Recent evidences suggest that HRV analysis might predict complications even in patients undergoing cardiac surgery, and the present review summarizes the importance of HRV analysis in adult cardiac surgery and the perspectives for HRV use in current clinical practice. Although future larger studies are warranted before HRV can be included into daily clinical practice in adult cardiac surgery, HRV is a novel tool which might detect autonomic instability in the early postoperative phase and during hospital stay, thus predicting or prompt-diagnosing many of the post-operative complications.展开更多
Chaviano＇s Fables of an Extraterrestrial Grandmother is a pioneering Cuban science fiction novel with four interconnected plots that manifest their separate worlds--the Havana of Ana, the protagonist writer, the Neol...Chaviano＇s Fables of an Extraterrestrial Grandmother is a pioneering Cuban science fiction novel with four interconnected plots that manifest their separate worlds--the Havana of Ana, the protagonist writer, the Neolithic Celtic world of Merlin and Stonehenge, Faidir, the planet of Ijj e and the winged psyches with three eyes, and Rybel, the world of Ana＇s character Arlena, the ＂jumen＂ on the run in an alien planet after being wrecked in a space ship---through Ana＇s writing. Ana uses mental exercises and automatic writing to temporarily regress to a pre-rational state of consciousness where these parallel universes interpenetrate and cross in the locus of her subconscious. Writing for her is a form of possession that withdraws her fi＇om her immediate reality into a visionary state resembling that of a shaman. She is a writer being invented and written by her own characters. Her stories are not fictions, but already existing realities, and she is a channel by which they are able to manifest their existence through her writing. This science fiction vision of worlds within worlds suggests another origin of science fiction in the ancient literary genre of Menippean satire, a type of fiction that appeals to highly cosmopolitan, alienated readers who seek to renew contact with the sources of consciousness from which technological and social change have alienated them.展开更多
The primary aim of this paper is to survey the effect of outdoor public service advertisements on the audience. Taking questionnaire as the method, this study has discussed the validity of outdoor Public Service Adver...The primary aim of this paper is to survey the effect of outdoor public service advertisements on the audience. Taking questionnaire as the method, this study has discussed the validity of outdoor Public Service Advertising Language of citizens in Guangzhou, which from the aspects of attention, acceptance and comprehension. The results of the survey indicate that the effectiveness of outdoor advertising language in Guangzhou is generally optimistic. Then the problems incurred by outdoor advertising language are discussed according to the analysis result. Finally, relevant suggestions and measures were proposed for improving the impact of public service advertising.展开更多
The debate on grammar in second language acquisition： past, present, and future, is a well written summary of both explicit and implicit grammar instruction in second language acquisition from past to present and wit...The debate on grammar in second language acquisition： past, present, and future, is a well written summary of both explicit and implicit grammar instruction in second language acquisition from past to present and with future projections. The thesis holds that explicit grammar instruction plays a very important role in foreign language learning and teaching and argues that English education in China should lay emphasis on how to assist students＇ grammar internalization and promote the conversion from explicit learning to implicit learning.展开更多
文摘Heart rate variability （HRV） refers to the variations between consecutive heartbeats, which depend on the continuous modulation of the sympathetic and parasympathetic branches of the autonomic nervous system. HRV has been shown to be effective as a predictor of risk after myocardial infarction and an early warning sign of diabetic neuropathy, and in the cardiology setting is now recognized to be a useful tool for risk-stratification after hospital admission and after discharge. Recent evidences suggest that HRV analysis might predict complications even in patients undergoing cardiac surgery, and the present review summarizes the importance of HRV analysis in adult cardiac surgery and the perspectives for HRV use in current clinical practice. Although future larger studies are warranted before HRV can be included into daily clinical practice in adult cardiac surgery, HRV is a novel tool which might detect autonomic instability in the early postoperative phase and during hospital stay, thus predicting or prompt-diagnosing many of the post-operative complications.
文摘Chaviano＇s Fables of an Extraterrestrial Grandmother is a pioneering Cuban science fiction novel with four interconnected plots that manifest their separate worlds--the Havana of Ana, the protagonist writer, the Neolithic Celtic world of Merlin and Stonehenge, Faidir, the planet of Ijj e and the winged psyches with three eyes, and Rybel, the world of Ana＇s character Arlena, the ＂jumen＂ on the run in an alien planet after being wrecked in a space ship---through Ana＇s writing. Ana uses mental exercises and automatic writing to temporarily regress to a pre-rational state of consciousness where these parallel universes interpenetrate and cross in the locus of her subconscious. Writing for her is a form of possession that withdraws her fi＇om her immediate reality into a visionary state resembling that of a shaman. She is a writer being invented and written by her own characters. Her stories are not fictions, but already existing realities, and she is a channel by which they are able to manifest their existence through her writing. This science fiction vision of worlds within worlds suggests another origin of science fiction in the ancient literary genre of Menippean satire, a type of fiction that appeals to highly cosmopolitan, alienated readers who seek to renew contact with the sources of consciousness from which technological and social change have alienated them.
文摘The primary aim of this paper is to survey the effect of outdoor public service advertisements on the audience. Taking questionnaire as the method, this study has discussed the validity of outdoor Public Service Advertising Language of citizens in Guangzhou, which from the aspects of attention, acceptance and comprehension. The results of the survey indicate that the effectiveness of outdoor advertising language in Guangzhou is generally optimistic. Then the problems incurred by outdoor advertising language are discussed according to the analysis result. Finally, relevant suggestions and measures were proposed for improving the impact of public service advertising.
文摘The debate on grammar in second language acquisition： past, present, and future, is a well written summary of both explicit and implicit grammar instruction in second language acquisition from past to present and with future projections. The thesis holds that explicit grammar instruction plays a very important role in foreign language learning and teaching and argues that English education in China should lay emphasis on how to assist students＇ grammar internalization and promote the conversion from explicit learning to implicit learning.
