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leo bnu

Diigo Blog - 0 views

  • Google just announced that it will gradually phase out Google Notebook and many people are looking for alternatives. Here is a brief side-by-side comparison of Google Notebook and Diigo:
isaac Mao

中文網志年會2008 廣州攻略 « iLEMONed CN - 0 views

  • 感謝 Isaac、Shizhao、Tangos、lonsonlo 等前輩給予機會讓我為年會出力!我寫了一篇不完全指南,希望能起到幫助。
  • 廣州氣候跟香港差不多,11月也不會很冷。個人的經驗是兩件衣服足夠了,不需要毛衣。具體天氣請留意本文更新,不建議參考天氣預報。。
isaac Mao

Free will - Wikipedia, the free encyclopedia - 1 views

  • It is claimed by some that quantum indeterminism is confined to microscopic phenomena.[54] The claim that events at the atomic or particulate level are unknowable can be challenged experimentally and even technologically: for instance, some hardware random number generators work by amplifying quantum effects into practically usable signals. However, this only amounts to macroscopic indeterminism if it can be shown that microscopic events really are indeterministic.
  • Hard incompatibilism is defended by Derk Pereboom, who identifies a variety of positions where free will is seen irrelevant to indeterminism/determinism, among them the following: Determinism (D) is true, D does not imply we lack free will (F), but in fact we do lack F. D is true, D does not imply we lack F, but in fact we don't know if we have F. D is true, and we do have F. D is true, we have F, and F implies D. D is unproven, but we have F. D isn't true, we do have F, and would have F even if D were true. D isn't true, we don't have F, but F is compatible with D. Derk Pereboom, Living without Free Will,[13] p. xvi. Pereboom calls positions 3 and 4 soft determinism, position 1 a form of hard determinism, position 6 a form of classical libertarianism, and any position that includes having F as compatibilism. He largely ignores position 2
  • Compatibilist models of free will often consider deterministic relationships as discoverable in the physical world (including the brain). Cognitive naturalism[118] is a physicalist approach to studing human consciousness in which mind is simply part of nature, perhaps merely a feature of many very complex self-programming feedback systems (for example, neural networks and cognitive robots), and so must be studied by the methods of empirical science, for example, behavioral science and the cognitive sciences like neuroscience and cognitive psychology.[101][119] Cognitive naturalism stresses the role of neurological sciences. Overall brain health, substance dependence, depression, and various personality disorders clearly influence mental activity, and their impact upon volition also is important.[113] For example, an addict may experience a conscious desire to escape addiction, but be unable to do so. The "will" is disconnected from the freedom to act. This situation is related to an abnormal production and distribution of dopamine in the brain.[120] The neuroscience of free will places restrictions on both compatibilist and incompatibilist free will conceptions. Compatibilist models adhere to models of mind in which mental activity (such as deliberation) can be reduced to physical activity without any change in physical outcome. Although compatibilism is generally aligned to (or is at least compatible with) physicalism, some compatibilist models describe the natural occurrences of deterministic deliberation in the brain in terms of the first person perspective of the conscious agent performing the deliberation.[7] Such an approach has been considered a form of identity dualism. A description of "how conscious experience might affect brains" has been provided in which "the experience of conscious free will is the first-person perspective of the neural correlates of choosing".[7]
isaac Mao

22条方法优化大脑完整版 - 0 views

  • 大脑就是一台三磅重的超级计算机。它是身体运行的命令和控制中心。它几乎涉及你所做的每一件事。你的大脑决定你如何思考,如何感觉,如何行动,以及如何与他人相处。你的大脑甚至决定你是哪一类的人。它决定了你有多善解人意;你有多友善或是有多粗鲁。它决定了你思维有多敏捷,这还涉及到你工作完成的如何以及你的家庭。你的大脑还影响你的情感活动,以及你如何对待异性。
  • 可以充当情绪兴奋剂的味道有薄荷,柏杨和柠檬。起到舒缓作用的味道有:依兰,天竺葵和玫瑰。滴几滴精油在浴缸中或者在扩散器中,都可以起到作用。你也可以在一个棉球或手帕中滴一两滴,然后吸入这种味道。对于办公地点使用的一个警告:先确保没有人对你使用的精油过敏。
isaac Mao

Solidot | 骗局的神经学依据 - 0 views

  • THOMAS是一个强大的神经回路,当我们被信任时会释放出影响神经系统的化学物质催生素(oxytocin),引诱得到报答的渴望。骗局的关键不是你去相信骗子,而是骗子表现出他信任你。骗子会展示他是如何的需要你的帮助,令人以为他们是多么的脆弱。因为THOMAS的效应,我们在帮助他人时会自我感觉良好——这是家庭和朋友关系、以及与陌生人合作的基础。
isaac Mao

Joho the Blog » Internet not the child-devouring swamp many adults fear - 0 views

  • A three-year research project, headed by Mimi Ito, involving 28 researchers and 800 subjects, and sponsored by the MacArthur Foundation, finds that the stereotypical idea of the Internet as a soul-devouring, anti-social wasteland for our kids is just plain wrong. If you suspected otherwise, now you know you were right.
  • The researchers identified two distinctive categories of teen engagement with digital media: friendship-driven and interest-driven. While friendship-driven participation centered on “hanging out” with existing friends, interest-driven participation involved accessing online information and communities that may not be present in the local peer group.
isaac Mao

More Power to Those That Share « EDES 501 Web 2.0 Learning Log - 0 views

  • finished reading a deeply philosophical essay by Isaac Mao from The People’s Republic of China called “Sharism: A mind revolution.”  This essay is part of a collection of essays gathered by Joi Ito  to celebrate the power of Web 2.0 and “all the people who are willing to share.”  It was first brought to my attention by Will Richardson who reflected on Mao’s thoughts in his own blog last week as he lamented that there are still educators out there who are not willing to share their best teaching practices and lessons with others online (Nov. 18, 2008). 
isaac Mao

Memories may be stored on your DNA - 26 November 2008 - New Scientist - 1 views

  • To remember a particular event, a specific sequence of neurons must fire at just the right time. For this to happen, neurons must be connected in a certain way by chemical junctions called synapses. But how they last over decades, given that proteins in the brain, including those that form synapses, are destroyed and replaced constantly, is a mystery.
  • Many genes are already coated with methyl groups. When a cell divides, this "cellular memory" is passed on and tells the new cell what type it is - a kidney cell, for example. Miller and Sweatt argue that in neurons, methyl groups also help to control the exact pattern of protein expression needed to maintain the synapses that make up memories.
isaac Mao

上海校校通网络结构与资源推测分析报告 - 0 views

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    what a wastful project
isaac Mao

PROJECT HALO | HOME - 0 views

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    Digital Aristotle
isaac Mao

Dream Recorder: New Technology Could Display Your Dreams on Screen - 3 views

  • In a nutshell, the device converts electrical signals sent to the visual cortex into images that can be viewed on a computer screen. In their experiment, they showed test subjects the six letters in the word neuron and succeeded in reconstructing the word on screen by measuring their brain activity. As the technology progresses, it could be possible to "see" what people are thinking, what they dream about and record it for posterity. What do you think? Would that be awesome or scary as hell? All I know is that image weirds me out. [Yahoo Image via Pink Tentacle Thanks Roger!]
isaac Mao

El sharismo de Isaac Mao | Blog Nodos Ele - 0 views

  • La capacidad de compartir con nuestros estudiantes a partir del respeto a su individualidad va más allá de esa interpretación chata de la dimensión afectiva del aprendizaje tan de moda. Es a partir del respeto al individuo, a su decisión libre de interactuar o no, y de poner en juego estratégicamente su inteligencia conectiva como es posible entender una enseñanza libre de falsos ídolos y que responda a los fundamentos de la naturaleza humana.
isaac Mao

KIPP | Knowledge Is Power Program - 0 views

shared by isaac Mao on 14 Aug 08 - Cached
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    for socialbrain.org dev reference
isaac Mao

The Human Brain - Exercise - 13 views

  • Only recently have scientists been able to learn how the neural network of the brain forms. Beginning in the womb and throughout life this vast network continues to expand, adapt, and learn.
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  • Plasticity is the basic mental drive that networks your brain, giving you cognition and memory – fluidity, versatility, and adaptability.
  • Before birth you created neurons, the brain cells that communicate with each other, at the rate of 15 million per hour! When you emerged into the world, your 100 billion neurons were primed to organize themselves in response to your new environment – no matter the culture, climate, language, or lifestyle.
  • A healthy, well-functioning neuron can be directly linked to tens of thousands of other neurons,
  • A healthy, well-functioning neuron can be directly linked to tens of thousands of other neurons, creating a totality of more than a hundred trillion connections – each capable of performing 200 calculations per second!
  • Many neuroscientists believe that learning and memory involve changes at neuron-to-neuron synapses.
  • Travel is another good way to stimulate your brain. It worked for our ancestors, the early Homo sapiens. Their nomadic lifestyle provided a tremendous stimulation for their brains that led to the development of superior tools and survival skills. In comparison, the now-extinct Neanderthal was a species that for thousands of years apparently did not venture too far from their homes. (Maybe they were simply content with their lives – in contrast to the seldom-satisfied sapien.)
  • Exercise is a natural part of life, although these days we have to consciously include it in our daily routine. Biologically, it was part of survival, in the form of hunting and gathering or raising livestock and growing food. Historically, it was built into daily life, as regular hours of physical work or soldiering. What is now considered a form of exercise – walking –was originally a form of transportation.
isaac Mao

Kerpoof Studio - 1 views

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