Sunday, November 22, 2009

手机岂是手提电话那么简单?






下面這篇文章,是兩年前(2007年11月)寫的。應時而寫,但沒應時而發表,因為有點獨排眾議的味道,擔心大家不會靜心閱讀。現在時過境遷,大家也該心平氣靜了。我自己重讀一次,發現還沒改變心意。我也相信,用過iPhone 的朋友,不會認為我在胡說八道。




"应否让学生带手机上学的课题,热闹了一阵子,便因教育部长顺应民意作了一个和教育局背道而驰的决定和宣布后,告一段落。

教长说教育局没有会知他或得到他的同意,便作出学生可以带手机上学的决定和公告。至于教育局为什么作出那样的决定,好像没有公布。教育局长或他的高级官员会无故作出这样的决定吗?我相信不会。教育是百年树人的大业,岂可儿戏?我倒是很想知道教育局基于什么理由作出该决定。

人类历史有文字记载的已有几千年了。电话的历史,也只有几十年,不可谓不短。手提电话更短了。记得在八十年代,手提电话初面世时,以今日眼光看来,真是庞然大物,又粗又重。但在当日,大家却说它又小又轻,赞叹科技发达,可以把整个电话转换站 ( 一间大屋子 ),浓缩成比孩子书包还小的手提盒子,真是神奇。

但,它毕竟只是一架手提电话。没有别的功能。

二十年后的今天,它变成了手机,轻巧到可以放在衣袋里。价钱从二万多元降到整百元,功能一加又加,还不断的增加。五年后,十年后,它会具备什么功能呢?你我敢断言吗?十年前,你会想象到今天的手机能有如此多功能吗?

今天的手机,已不是手提电话那么简单了。

今天,手机已开始成为人与人造的外界的中介工具(interface)了。

几年后,我们也许出门什么工具都不带,只带手机了。手表不带, Laptop 不带,荷包不带。但这还在其次。也许,一机在手,我们可以做许许多多今天我们办不到的事:如打开家里电器开关,阅读新闻、查看财经消息、银行户口,订机票,吩咐Astro 暂停或恢复服务、、、等等。 我也相信,它还可以办到许多我现在想不到的东西。

我已好久不戴手表了。我的手机取代了我的手表。它也是 stop watch, 闹钟,记事簿,appointment book.....

总之,一句话:手机将成为人与人造的外界的中介工具了。 没了它,你会迷失于人造的环境里."


邱 Nov 2007 寫

Friday, July 24, 2009

脑育八法(下)

第六:刻意放松

这牵涉到故意观照身体各部以放松肌肉张力和身体疲劳。悦耳的音乐更加强其效应。简单的重复的快活和有意义的活动也会把你带入深层的放松。 刻意地集中在呼吸上可以排解压力。

第七:保持智力的活跃

“不用就会失去”可以应用在连接一个脑细胞到数以千计的其他脑细胞的树突(dendrites)和轴突(axon)上。智力和认知活动的刺激强化整个额叶(frontal lobe)的神经电路,进而强化沟通和解决问题和在行为上作出理性的决策的能力。有助于记忆的游戏,策略性的游戏如棋弈和麻将,其他形式的visual/spatial 游戏都能可观地促进认知功能(数学和填字游戏无此功能;暴力的图像游戏提高侵略性)。任何形式的智力刺激 都降低愤怒和恐惧的反应倾向。想象增进身体的运动协调能力;越常想象你所要得到的,获得的机会就越大。读书、写日记、看教育性的电视节目、听课、上博物院,下棋,都有帮助。

最具挑战性的最有效-譬如专注于灵性的课题,设法努力解决他们,从不同视野来考察他们。


第八:微笑

单是重复微笑的动作本身就有助于中断情绪失常和增强脑神经保持对生命的乐观。就算你装个微笑,别人也会更大方更仁慈的反应。微笑刺激加强社交互动、同情心和情绪。相反地,皱眉刺激愤怒,嫌恶和讨厌的感受。

微笑和笑声不同。笑声刺激不同的神经传导路(neural pathway)。幽默与笑声有可能会刺激杏仁体(Amygdala),这表示这类感受有时与不适和恐惧有关。



节译自 "上帝如何改造你的脑袋"

邱

Saturday, July 18, 2009

脑育八法(中)

第三:有氧运动

剧烈运动增强脑和它连接的每一部位。一般上愈剧烈愈好。但最重要是找出给你最佳感觉的运动量。
哈达瑜伽对你的脑和身体都有奇妙作用。它与其他形式的冥想静坐有类似的认知效益。它减低心脏病、帮助控制糖尿病的病征、减轻更年期的病征,减少背痛和防止偏头痛。

运动加强认知和学术表现,修补和保护由压力引起的神经破坏,加强神经的可塑性,加强免疫功能,减低焦虑,可以用来医治抑郁症,放慢老人脑组织的萎缩,防止老人痴呆症和加强对慢性病的抗御。

第四:静坐

静坐和深切祈祷对加强心灵健康的重要性高居首位。静坐二十分钟以上会促成身体分泌解除压力的荷尔蒙和其他的化学物如多巴胺( dopamine), 基色胺(serotonin)等。观想,guided imagery 和自我催眠也算是静坐,一样有效保持脑筋健康。


第五:打哈欠!

打哈欠会引起脑部直接牵涉到产生团体意识和同情心的特殊脑活动。其中一个部位是楔前小叶(precuneus),是一个躲藏在顶 叶中的细小组织。楔前小叶 可能对意识、反省和记忆起着枢纽作用。瑜伽呼吸法也会刺激楔前小叶.

打哈欠帮助我们加强团体意识、慈悲心和有效沟通。打哈欠不仅让你放松,它很快地把你带进高度的认知状态,解除睡意,调整意识、自我意识,令我们更能内省和自觉。除了活化楔前小叶 , 打哈欠还能调整脑的温度和新陈代谢。打哈欠会产生许多化学物包括多巴胺(dopamine), 乙醯膽鹼(acetylcholine), 一氧化氮(nitric oxide), 谷氨酸(glutamate), GABA, 基色胺(serotonin), 催腎上腺皮質激素(ACTH), 促黑激素( MSH), 性荷尔蒙 (sexual hormones),和 opium derivate peptides.




节译自 "上帝如何改造你的脑袋"

邱

Monday, July 13, 2009

脑育八法(上)

我们说体育智育......为什么不说脑育呢?
下面所节译的文章,说的可以说是脑育吧?


"以科学研究宗教和灵学得到两个明显的结论。 第一,从事宗教和灵学活动一般上是无害的,除非你迷信让你充满愤怒和恐惧的神。 第二,静坐和深切的祈祷永久性地加强某些脑神经的功能,减低紧张与忧悒,加强团体意识和同情心并改善认知和智力功能。 静坐所激发的脑电路减轻你受老化和压力的损害并提供你对情绪的更佳控制力。这类训练帮你维持沉着、宁静、和平与机警并给你正面和乐观的人生观。

仔细观察精神修养所牵涉到的脑神经学上的原则时,我们发现与祈祷和静坐有关的健康利益,也可以从与宗教无关的活动获得。

这里按重要性次序排列出八类健脑的活动

第一:信心。

无论我们对自己的身体、情绪和心灵健康作何种选择,我们永远不能肯定我们的信念是绝对对的。我们必须信赖我们的信念。这是信心的问题。

精神信仰,要靠信心。我们也不能肯定在抽象的概念上如正义、公平或道德理想上,我们是作了正确的选择。

信心相当于希望、乐观和光明前途等待我们的信念。在非常情况下,信心是让生存者活下来的最大因素。

新近研究显示,高度乐观者大脑前扣带(anterior cingulate )受静坐激发的部分比较活跃。前扣带对控制焦虑、抑郁、暴怒和促进团体意识和慈悲心起着关键性作用。其他研究也发现正面想法减低压力、有助于抗御伤风和减少心血管病、舒畅呼吸和促进吃苦能力。

第二:与人交谈

语言和人脑一起进化,使到人类在体力脑力上能突出于其他哺乳类与灵长目。如果我们不锻炼我们的语言技能,大脑的很大部分就不能有效地与其他脑组织连接。 不合群会破坏重要的脑机能,导致好斗情绪、忧郁和其他心理失常。

多谈些抽象的理想;不要陷入愤怒的交谈,因为暴躁的交谈会伤害脑筋。


节译自 "上帝如何改造你的脑袋"

邱

Wednesday, June 17, 2009

打哈欠

在我们现在的社会里,在大庭广众面前打哈欠,不但是不雅,而且是不敬的、无礼的。如果忍不住了要打哈欠,也得歪着头,掩着嘴,偷偷地打。打了以后,心里还得惭愧一番。这就是至今我们一般人对打哈欠的了解所决定的社会行为的要求。这也表示了,打哈欠是一种弱点,不能控制它是更大的弱点。

打哈欠能够控制吗?打哈欠是弱点吗?


以前在书报上看到的文章多说打哈欠是因为脑缺氧,是人困了。要避免打哈欠,得睡眠充足,得提起精神。我还因此因为早上爱打哈欠而对自己的健康发生疑问。怎么睡了一夜,早上还打哈欠呢?真的老到弱到这地步么?


今年在网上的一些研究脑神经的报告文章里,却看到一些新的说法,说打哈欠是身体自我调整的自然现象,打哈欠是因为脑细胞过热,需要降温而产生的。这一说法,给了我一些安慰,原来我早上打哈欠,不是因为缺氧,不是睡眠不足,而是用脑过度!那还不简单,少想就是了。


不久前,读了一本研究脑神经与心灵学的书,里面说打哈欠有解除压力的功能,大力提倡打哈欠。这和上面说的降温作用息息相关。


人们很久以前就知道,打哈欠是有感染性的;看到人家打哈欠,自己也会跟着打。在一个场合里,一人打哈欠可以引起一大堆人打哈欠。这种感染性,还可以应用在本身;当你做个打哈欠的姿势时,你可能就会真的打起哈欠来;如果一次不行,装多几次,不超过八次,我包你就真的打起哈欠来。不信你试试看。


























除了人类,其他动物也会打哈欠,如猴子,狗之类。




打哈欠可以减压,我们齐齐来打哈欠:一、 二、 三, 赫哈————。 舒服极了!


邱

Tuesday, June 9, 2009

World Religions



I have sent President Obama's speech that I uploaded to my blog a few days ago to many friends even before I read it. The reasons: 1, It is so very important, 2, it is the first time ever since I became aware of Obama as a USA presidential candidate that I started to get serious about him. No, I am no skeptic nor a cynic. I have been critical in my youth but I have been consciously steering clear the path of cynicism and skepticism. It is just that I have been so much bombarded by politicking throughout my adult life that I have developed my safe way of reading politicians.

Now, with that speech delivered in Cairo, I have to look at President Obama in a different light.

I believe in a happy life being profitable to mankind. I believe in Love and Peace.

All founders of the world's major religions preached Love and Peace. Many of their followers believe in Love and Peace.

Religious wars, prevalent for centuries, caused tremendous human suffering. Religious wars are the biggest paradox ever invented and implemented by mankind.

In the period that has just lapsed in this 21st century, the smell of religious war is ever present in the air. Being the top leader of the major countries in which the people are believers of one of the major religions, President Obama is the best person to initiate a truce in religious wars. His background also give him considerable added advantages.

The information of the pie chart I quoted here may not be agreed by all, but I think it is good enough for my purpose. Leaders of Christianity and Islam, being the 2 biggest religions in the world, must take the lead to lead their believers to what their founders preached and squash religious wars, if humanity is to develop in synchronicity with science and technology.

I have no doubt President Obama will want to walk his talk, but it may be my wishful thinking that he will actually be able to.

Sunday, June 7, 2009

President Obama's speech to the Muslim World

转载:

I am honored to be in the timeless city of Cairo, and to be hosted by two remarkable institutions. For over a thousand years, Al-Azhar has stood as a beacon of Islamic learning, and for over a century, Cairo University has been a source of Egypt's advancement. Together, you represent the harmony between tradition and progress. I am grateful for your hospitality, and the hospitality of the people of Egypt. I am also proud to carry with me the goodwill of the American people, and a greeting of peace from Muslim communities in my country: assalaamu alaykum.

We meet at a time of tension between the United States and Muslims around the world — tension rooted in historical forces that go beyond any current policy debate. The relationship between Islam and the West includes centuries of co-existence and cooperation, but also conflict and religious wars. More recently, tension has been fed by colonialism that denied rights and opportunities to many Muslims, and a Cold War in which Muslim-majority countries were too often treated as proxies without regard to their own aspirations. Moreover, the sweeping change brought by modernity and globalization led many Muslims to view the West as hostile to the traditions of Islam. (See pictures of people around the world watching Obama's inauguration.)

Violent extremists have exploited these tensions in a small but potent minority of Muslims. The attacks of September 11th, 2001 and the continued efforts of these extremists to engage in violence against civilians has led some in my country to view Islam as inevitably hostile not only to America and Western countries, but also to human rights. This has bred more fear and mistrust.

So long as our relationship is defined by our differences, we will empower those who sow hatred rather than peace, and who promote conflict rather than the cooperation that can help all of our people achieve justice and prosperity. This cycle of suspicion and discord must end.

I have come here to seek a new beginning between the United States and Muslims around the world; one based upon mutual interest and mutual respect; and one based upon the truth that America and Islam are not exclusive, and need not be in competition. Instead, they overlap, and share common principles — principles of justice and progress; tolerance and the dignity of all human beings. (See pictures of Obama in the Middle East.)

I do so recognizing that change cannot happen overnight. No single speech can eradicate years of mistrust, nor can I answer in the time that I have all the complex questions that brought us to this point. But I am convinced that in order to move forward, we must say openly the things we hold in our hearts, and that too often are said only behind closed doors. There must be a sustained effort to listen to each other; to learn from each other; to respect one another; and to seek common ground. As the Holy Koran tells us, "Be conscious of God and speak always the truth." That is what I will try to do — to speak the truth as best I can, humbled by the task before us, and firm in my belief that the interests we share as human beings are far more powerful than the forces that drive us apart.

Part of this conviction is rooted in my own experience. I am a Christian, but my father came from a Kenyan family that includes generations of Muslims. As a boy, I spent several years in Indonesia and heard the call of the azaan at the break of dawn and the fall of dusk. As a young man, I worked in Chicago communities where many found dignity and peace in their Muslim faith.

As a student of history, I also know civilization's debt to Islam. It was Islam — at places like Al-Azhar University — that carried the light of learning through so many centuries, paving the way for Europe's Renaissance and Enlightenment. It was innovation in Muslim communities that developed the order of algebra; our magnetic compass and tools of navigation; our mastery of pens and printing; our understanding of how disease spreads and how it can be healed. Islamic culture has given us majestic arches and soaring spires; timeless poetry and cherished music; elegant calligraphy and places of peaceful contemplation. And throughout history, Islam has demonstrated through words and deeds the possibilities of religious tolerance and racial equality.

I know, too, that Islam has always been a part of America's story. The first nation to recognize my country was Morocco. In signing the Treaty of Tripoli in 1796, our second President John Adams wrote, "The United States has in itself no character of enmity against the laws, religion or tranquility of Muslims." And since our founding, American Muslims have enriched the United States. They have fought in our wars, served in government, stood for civil rights, started businesses, taught at our Universities, excelled in our sports arenas, won Nobel Prizes, built our tallest building, and lit the Olympic Torch. And when the first Muslim-American was recently elected to Congress, he took the oath to defend our Constitution using the same Holy Koran that one of our Founding Fathers — Thomas Jefferson — kept in his personal library.

So I have known Islam on three continents before coming to the region where it was first revealed. That experience guides my conviction that partnership between America and Islam must be based on what Islam is, not what it isn't. And I consider it part of my responsibility as President of the United States to fight against negative stereotypes of Islam wherever they appear.

But that same principle must apply to Muslim perceptions of America. Just as Muslims do not fit a crude stereotype, America is not the crude stereotype of a self-interested empire. The United States has been one of the greatest sources of progress that the world has ever known. We were born out of revolution against an empire. We were founded upon the ideal that all are created equal, and we have shed blood and struggled for centuries to give meaning to those words — within our borders, and around the world. We are shaped by every culture, drawn from every end of the Earth, and dedicated to a simple concept: E pluribus unum: "Out of many, one."



Remarks of Barack Obama in the Grand Hall of Cairo University on June 4, 2009