关键词： 手机   大脑   科学家   意识   电话号码   研究人员   操作方法   快节奏  

摘要： 对我们这个寸时寸金的快节奏社会来说，拔电话号码似乎也是在浪费时间。对此美国研究人员已经找到解决办法，他们研制了用思想拨号的手机，以后不用动手指，我们就能打电话。使用者佩戴的一个特制头饰带与蓝牙设备相连，能像诺基亚N73手机发送无线信号。这项技术通过对大脑的暗示做出反应产生作用，专家认为任何人经过练习，都能掌握操作方法。

关键词： 法兰克福学派   意识形态属性   控制论   媒介   批判意识   新马克思主义   批判精神   思想层面  

摘要： 一、法兰克福学派的“媒介控制论”法兰克福学派．堪称当代“新马克思主义”中影响最大的一个流派．其核心就是“批判精神”和“批判意识”。什么是批判？这个概念众说纷纭，其自身也没有一个确切定义。从“批判”本身来看有两个层面．一个是思想层面的批判，康德“三大批判”

关键词： 汽车驾驶   大脑意识   装置   媒体报道   电脑游戏   电子元件   无线技术   科学家  

摘要： 据国外媒体报道，近日，一支科学家研究小组成功研制一种大脑意识操控汽车的装置，驾驶者戴着这种特殊的耳机装置（其设计最初源自电脑游戏），所装配的传感器可通过无线技术与汽车的电子元件建立连接。

关键词： Baroreceptor reflex   Ascorbic acid   N-acetylcysteine   Parasympathetic nervous system   Reactive oxygen species   Brainstem  

摘要： Baroreceptor reflex is an important system for neural control of blood pressure. Recently, reactive oxygen species (ROS) have been shown to play an important role in neuronal activity of central areas related to blood pressure control. The aim of this study was to investigate the effects elicited by ascorbic acid (AAC) and N-acetylcysteine (NAC) injections into the 4thV on the parasympathetic component of the baroreflex. Male Wistar rats were implanted with a stainless steel guide cannula into the 4thV. One day prior to the experiments, the femoral artery and vein were cannulated for pulsatile arterial pressure, mean arterial pressure and heart rate measurements and drug administration, respectively. After baseline recordings, the baroreflex was tested with a pressor dose of phenylephrine (PHE, 3 mu g/kg, i.v.) and a depressor dose of sodium nitroprusside (SNP, 30 mu g/kg, i.v.) before (control) and 5, 15,30 and 60 min after AAC or NAC into the 4thV. Control PHE injection induced baroreflex-mediated bradycardia (-93 +/- 13 bpm, n = 7). Interestingly, after AAC injection into the 4thV, PHE injection produced a transient tachycardia at 5 (40 +/- 23 bpm), 15 (26 +/- 22 bpm) and 30 min (59 +/- 21 bpm). No changes were observed in baroreflex-mediated tachycardia evoked by SNP after AAC injection on 4thV (control: 151 +/- 23 bpm vs. 135 +/- 18 bpm at 5 min after MC, n = 7). In the NAC treated group. PHE induced a reduction in reflex bradycardia at 5 min when compared to control (-11 +/- 17 bpm vs. -83 +/- 15 bpm, n = 7). No changes were observed in baroreflex-mediated tachycardia evoked by SNP after NAC injection on 4thV. The antioxidants AAC and NAC may act in the central nervous system affecting the parasympathetic component of the cardiac baroreflex. (C) 2010 Elsevier Ireland Ltd. All rights reserved.

关键词： 控制自然   当代价值   马克思主义思想   意识形态批判   生态正义   威廉   生态学马克思主义   科学技术  

摘要： 作为生态学马克思主义奠基者，威廉·莱斯认为，“控制自然”的观念是生态危机的根源。关于生态危机的解决，他主张不是消除“控制自然”的观念，而应给予其重新解释：“它的主旨在于伦理的或道德的发展而不在于科学和技术的革新。”[1]据此，需重建科学技术的价值基础，建立一个“较易于生存的社会”。

关键词： 幼儿教育   长幼关系   同伴关系   自我控制能力  

摘要： 游戏是儿童的基本活动,对儿童身心发展具有重要作用。维果茨基认为"规则是游戏本质的特征",游戏具有规则性。不论是在游戏开始前由游戏指导者或游戏者向"所有游戏人"宣布的外显游戏规则,还是在游戏过程中体现的游戏内在的情境性和秩序感"这种内隐游戏规则,对幼儿理解其规则的意义,掌握社会行为规范意义深远。

关键词： 控制计算机   大脑   科学家   研究人员   加州理工学院   神经元细胞   神经控制   神经末梢  

摘要： 美国芝加哥大学和加州理工学院的研究人员对癫痫患者进行了实验，这些癫痫患者身患疾病，研究人员在他们的大脑中植入传感器，便于监控大脑神经的活动性。接下来，研究人员训练这些癫痫患者通过大脑神经末梢或者神经元细胞进行”发挥性神经控制”，从而实现通过意识开启或者关闭这种意识性控制。

关键词： Analgesia   Essure   Fallopian tube   Hysteroscopic sterilization   Randomized   Double-blind   Placebo-controlled trial  

摘要： Study Objective: To compare the pain reported by patients during the Essure Micro-Insert sterilization procedure using either intravenous conscious sedation or oral analgesia. Design: Randomized, double-blind, placebo-controlled trial (Canadian Task Force classification 1). Setting: Tertiary care ambulatory women's clinic. Patients: Eighty women of reproductive age women requesting permanent sterilization. Intervention: Hysteroscopic placement of the Essure Micro-Insert permanent birth control system. Measurements and Main Results: Patients undergoing placement of the Essure Micro-Insert system for permanent contraception were randomized to receive either intravenous conscious sedation, oral analgesia, or placebo. During the procedure, pain scores were recorded using a visual analog scale. Patients in the oral analgesia group reported slightly more pain during insertion of the hysteroscope and placement of the second micro-insert;the groups were otherwise equivalent. They were also equivalent when all visual analog scale scores were combined. Conclusion: Oral analgesia is an effective method of pain control during placement of the Essure Micro-Insert permanent birth control system. Journal of Minimally Invasive Gynecology (2011) 18, 108-111 (C) 2011 AAGL. All rights reserved.

摘要： Cognitive control allows humans to overrule and inhibit habitual responses to optimize performance in challenging situations. Contradicting traditional views, recent studies suggest that cognitive control processes can be initiated unconsciously. To further capture the relation between consciousness and cognitive control, we studied the dynamics of inhibitory control processes when triggered consciously versus unconsciously in a modified version of the stop task. Attempts to inhibit an imminent response were often successful after unmasked ( visible) stop signals. Masked ( invisible) stop signals rarely succeeded in instigating overt inhibition but did trigger slowing down of response times. Masked stop signals elicited a sequence of distinct ERP components that were also observed on unmasked stop signals. The N2 component correlated with the efficiency of inhibitory control when elicited by unmasked stop signals and with the magnitude of slowdown when elicited by masked stop signals. Thus, the N2 likely reflects the initiation of inhibitory control, irrespective of conscious awareness. The P3 component was much reduced in amplitude and duration on masked versus unmasked stop trials. These patterns of differences and similarities between conscious and unconscious cognitive control processes are discussed in a framework that differentiates between feedforward and feedback connections in yielding conscious experience.

关键词： 代理商   利润   进程   商人   财政管理   工程机械行业   企业内部控制   经济管理   风险管理   意识  

摘要： 在当今社会里,各种风险因子时刻都在变动整合着,稍不留意,一个风险因子的突变就会终结一家企业的命运。中国工程机械行业经过多年的迅猛发展,已经摆脱了最初的无序竞争,逐渐回归了理性。而作为工程机械行业价值链上重要一环,代理商群体随着业务的不断深化拓展,竞争的激烈程度也在前所未有地考验着各家代理商高管团队的管理智慧。2001年美国安然事件之后,以2002年出台的《萨班斯——奥克斯