Auditory brain-computer interfaces (BCI) provide a method of non-muscular commu-nication and control for late-stage amyotrophic lateral sclerosis (ALS) patients, who have impaired eye movements or compromised vision. ...Auditory brain-computer interfaces (BCI) provide a method of non-muscular commu-nication and control for late-stage amyotrophic lateral sclerosis (ALS) patients, who have impaired eye movements or compromised vision. In this study, random sequences of spoken digits were presented as auditory stimulation. According the protocol, the subject should pay attention to target digits and ignore non-target digits. EEG data were recorded and the components of P300 and N200 were extracted as features for pattern recognition. Fisher classifier was designed and provided likelihood estimates for the Dynamic Stopping Criterion (DSC). Dynamic data collection was controlled by a threshold of the posterior probabilities which were continually updated with each additional measurement. In addition, the experiment would be stopped and the decision was made once the probabilities were above the threshold. The results showed that this paradigm could effectively evoke the characteristic EEG, and the DSC algorithm could improve the accuracy and communication rate.展开更多
2011-03-11日本福岛核电站放射性物质发生泄漏事件,本研究基于MASNUM(Laboratory of Marine Science and Numerical Modeling)海洋环流模式,建立了西北太平洋海洋放射性物质输运扩散模式,对事故释放的^(137)Cs在海洋中的输运和扩散过程...2011-03-11日本福岛核电站放射性物质发生泄漏事件,本研究基于MASNUM(Laboratory of Marine Science and Numerical Modeling)海洋环流模式,建立了西北太平洋海洋放射性物质输运扩散模式,对事故释放的^(137)Cs在海洋中的输运和扩散过程进行了20a的模拟与预测。根据与观测资料的比较,验证了所建立的模式具备模拟放射性物质在海洋中的输运扩散过程的能力。结果显示:至2015年,^(137)Cs表层活度浓度已经扩散至整个中国海域,活度浓度值在0.01Bq/m^3左右;事故发生10a后,研究海域^(137)Cs表层活度浓度趋于均匀,为0.20~0.60Bq/m^3左右;20a后,^(137)Cs在海洋表层的活度浓度要小于0.15Bq/m^3。垂向扩散的结果显示:事故发生10a后,黄海海域^(137)Cs垂向分布较为均匀,东海东部陆架海域活度浓度高于西部海域,且上层海水中^(137)Cs活度浓度高于底层海水,南海北部海域^(137)Cs活度浓度高于南部海域,且略小于黄海和东海;至2030年,中国近海^(137)Cs的活度浓度的垂向分布趋于均匀,南海略高于黄海和东海;日本海^(137)Cs活度浓度主要集中在表层,最大活度浓度出现在2016年,约为0.20Bq/m^3;西北太平洋海域^(137)Cs活度浓度要高于其他4个海域;2030年以后,整个海域^(137)Cs活度浓度在水平和垂向分布均趋于均匀,均小于0.15Bq/m^3。展开更多
目的促进醒脑静注射液的临床合理应用。方法随机抽取2015年上半年和2016年上半年应用醒脑静注射液的电子病历各60份,结合该药说明书、相关指南,评价其应用适宜性。结果醒脑静注射液不合理应用情况包括,适应证不适宜2例(1.67%),给药剂量...目的促进醒脑静注射液的临床合理应用。方法随机抽取2015年上半年和2016年上半年应用醒脑静注射液的电子病历各60份,结合该药说明书、相关指南,评价其应用适宜性。结果醒脑静注射液不合理应用情况包括,适应证不适宜2例(1.67%),给药剂量不足1例(0.83%),溶剂剂量错为100 mL 13例(10.83%),与胰岛素或(和)10%氯化钾注射液混合配伍滴注28例次(23.33%),疗程长达16~22 d 4例(3.33%)。结论医院需重点从输液配伍、溶剂剂量方面提高醒脑静注射液应用适宜性,进一步促进合理用药。展开更多
文摘Auditory brain-computer interfaces (BCI) provide a method of non-muscular commu-nication and control for late-stage amyotrophic lateral sclerosis (ALS) patients, who have impaired eye movements or compromised vision. In this study, random sequences of spoken digits were presented as auditory stimulation. According the protocol, the subject should pay attention to target digits and ignore non-target digits. EEG data were recorded and the components of P300 and N200 were extracted as features for pattern recognition. Fisher classifier was designed and provided likelihood estimates for the Dynamic Stopping Criterion (DSC). Dynamic data collection was controlled by a threshold of the posterior probabilities which were continually updated with each additional measurement. In addition, the experiment would be stopped and the decision was made once the probabilities were above the threshold. The results showed that this paradigm could effectively evoke the characteristic EEG, and the DSC algorithm could improve the accuracy and communication rate.
文摘2011-03-11日本福岛核电站放射性物质发生泄漏事件,本研究基于MASNUM(Laboratory of Marine Science and Numerical Modeling)海洋环流模式,建立了西北太平洋海洋放射性物质输运扩散模式,对事故释放的^(137)Cs在海洋中的输运和扩散过程进行了20a的模拟与预测。根据与观测资料的比较,验证了所建立的模式具备模拟放射性物质在海洋中的输运扩散过程的能力。结果显示:至2015年,^(137)Cs表层活度浓度已经扩散至整个中国海域,活度浓度值在0.01Bq/m^3左右;事故发生10a后,研究海域^(137)Cs表层活度浓度趋于均匀,为0.20~0.60Bq/m^3左右;20a后,^(137)Cs在海洋表层的活度浓度要小于0.15Bq/m^3。垂向扩散的结果显示:事故发生10a后,黄海海域^(137)Cs垂向分布较为均匀,东海东部陆架海域活度浓度高于西部海域,且上层海水中^(137)Cs活度浓度高于底层海水,南海北部海域^(137)Cs活度浓度高于南部海域,且略小于黄海和东海;至2030年,中国近海^(137)Cs的活度浓度的垂向分布趋于均匀,南海略高于黄海和东海;日本海^(137)Cs活度浓度主要集中在表层,最大活度浓度出现在2016年,约为0.20Bq/m^3;西北太平洋海域^(137)Cs活度浓度要高于其他4个海域;2030年以后,整个海域^(137)Cs活度浓度在水平和垂向分布均趋于均匀,均小于0.15Bq/m^3。
文摘目的促进醒脑静注射液的临床合理应用。方法随机抽取2015年上半年和2016年上半年应用醒脑静注射液的电子病历各60份,结合该药说明书、相关指南,评价其应用适宜性。结果醒脑静注射液不合理应用情况包括,适应证不适宜2例(1.67%),给药剂量不足1例(0.83%),溶剂剂量错为100 mL 13例(10.83%),与胰岛素或(和)10%氯化钾注射液混合配伍滴注28例次(23.33%),疗程长达16~22 d 4例(3.33%)。结论医院需重点从输液配伍、溶剂剂量方面提高醒脑静注射液应用适宜性,进一步促进合理用药。
