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Contents contributed and discussions participated by isaac Mao

isaac Mao

Financial Literacy: Making Sense of Dollars and Cents | Edutopia - 2 views

  • Financial Literacy:Special Report Table of Contents Financial Literacy: Making Sense of Dollars and CentsThe Bucks Start Here: A Hands-On Approach to Personal FinanceHow To: Teach the Soft Side of BusinessTake It to the Bank: Students Learn to Manage Their MoneyMoney Corps: Finance Experts as Guest TeachersEntrepreneurial Education: The Successful Investor ProjectMoney Lessons: A Guide to Financial-Literacy Resources
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    素质教育应当改名为素养教育
isaac Mao

Study provides new insights about brain organization - 0 views

  • "One theory is that individual senses have separate areas of the brain dedicated to them," said Mark Wallace, Ph.D., the study's lead investigator. "In this view, information is processed initially on a sense-by-sense basis and doesn't come together until much later. However, this view has recently been challenged by studies showing that processing in the visual area of the brain, for example, can be influenced by hearing and touch."
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

Neurobics - 0 views

  • Some specific types of sensory stimuli and activities, especially those that involve non-routine actions and thoughts, produce more of those chemicals that encourage growth of new dendrites and neurons in the brain. These are generally non-routine activities. Routines become so automatic that actions are done largely unconsciously (ever get up in the morning and walk to the bathroom before you're really conscious?). Such automated or unconscious actions require less activity in the brain, and exercise it less.
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

Not Exactly Rocket Science : Taking the new out of neurons - 0 views

  • The situation is much the same in primates and rodents, where new neurons only appear in the hippocampus and olfactory bulb. In contrast, fish, reptiles and birds renew the neurons throughout their entire network and throughout their entire lives.
isaac Mao

Technology Review: Detecting Brain Chemicals - 0 views

  • Sampling the brain: A device by the Mayo Clinic can analyze and detect neurotransmitters locally in the brain. Blue wires link an external monitor (circuit board) to gray connectors, which are in turn linked to neurotransmitter-sensing electrodes (not shown). The device is battery operated (the battery is shown connected to the circuit board) and can transmit the neurochemical information from the electrodes to a remote station for analysis.
isaac Mao

Looking Inside the Human Brain - 0 views

  • What's really going on inside your head when you make a decision, make a mistake, or have a few drinks? In this segment, Ira and guests talk about new research involving the field of functional magnetic resonance imaging, or fMRI. The technique allows researchers to monitor the blood flow through parts of the brain as it responds to stimuli, allowing researchers to monitor which parts of the brain are active and which are resting. Though the technique is being eagerly explored in a variety of fields, fMRI has received criticism from some brain experts as being the modern-day equivalent of phrenology. We'll hear about the technique, and what it can tell researchers about the inner workings of the human brain.
isaac Mao

Science Friday Archives: Do You Want to Believe? - 0 views

  • People who had written about a situation in which they were not in control were more likely to draw non-existent connections between the coincidences, the researchers found.
isaac Mao

毛向辉- Isaac Mao - 0 views

  • 他(蔡)说,首先中国的政策始终是鼓励和帮助互联网的发展,而不是压抑互联网的发展。其次他说各个国家都有按照本国历史、国情、民俗制定的管理互联网的法律,中国也一样。他举例说比如在伊斯兰国家不准亵渎真主,或者在德国不准宣传纳粹。吉米回答说,他觉得维基百科的中立性非常适合这个规则。因为我们是写百科全书的,我们写世界上有什么,我们陈述各种观点,但是我们不是做宣传的或者传教的。我们在非伊斯兰国家里也不亵渎真主,在德国外也不宣传纳粹。----  [维基百科:互助客栈]
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    A central blog about myself
isaac Mao

一对一的社区课余辅导助益孩子成长 - 译言翻译 - 0 views

shared by isaac Mao on 17 Sep 08 - Cached
  • 听到他们这么讲,我说,那你们为何不给他们一对一的辅导呢?他们说,”我们每个人都在五个班任教,每个班的学生人数为30到40,这样加起来就有近200 名的学生。你想想看,我们甚至连给予每位学生一周一个小时的指导都做不到呢!“要想真的这么做,你就得延长工作时间或增加教师的数量。我于是跟他们细细的 商量这样的事情,此时我想起了我认识的生活在这里的作家、编辑、记者、研究生、助理教授等人士,他们大都有一个灵活的工作时间,并且对于英语语言本身具有 浓厚的兴趣。他们都知道一种良好的语言表达对于民主的培育、智慧人生的塑造的重要意义。他们有的是时间和对于语言的兴趣,可是当时在我的社区里却没有一种 良好的方式能够让他们和那些亟需指导的学生之间搭起桥梁。
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