public marks

PUBLIC MARKS from YukuanMark with tag biology

October 2006

BEAM robotics - Wikipedia, the free encyclopedia

The word "beam" in BEAM robotics is an acronym for Biology, Electronics, Aesthetics, and Mechanics. This is a term that refers to a style of robotics that primarily uses simple analog circuits instead of a microprocessor in order to produce an unusually s

Mark Tilden - Wikipedia, the free encyclopedia

Mark W. Tilden is perhaps most well known for his invention of BEAM robotics. He is a robotics physicist, who produces complex robotic movements from simple logic circuits, often all on the single logic chip and without a microprocessor.

August 2006

現在幾點鐘?

你相信嗎?地球上幾乎所有的生物都「知道」時間!無數的科學家們窮畢生之力,從羽化的果蠅、覓食的蜜蜂、玩滾輪的黃金鼠、枝頭跳躍的麻雀,還有行光合作用的藍綠菌,找出了晝夜交替、

July 2006

新觀念生物學

《新觀念生物學》以大開數的全彩附圖清楚簡單地輔助解說;比起上一版更具有圖像魅力,幫助讀者學習。並回應了教師在教學時所需要的科學精確,對不同學習風格學生達到事半功倍的效果。

觀念生物學

沒有艱深的專有名詞、複雜的黑白圖表。信手拈來的是讓您輕鬆理解、饒富啟發的俏皮彩色插畫。 您可以從最微小的細菌,到最複雜的人類,由16種生命共通的模式貫穿,從生命現象到透視生命

話別說太早!

我們這個物種正規的林奈氏命名是Homo sapiens,翻譯過來就是「有智慧的人」。這倒像是個自家人才了解的笑話,只要你隨便瀏覽任何一天的報紙頭版就可明白。而如果科學家費盡了艱辛才給我們

以原子力顯微鏡(AFM)協助判斷死亡時間

大陸廣州暨南大學化學系以及依利諾大學芝加哥分校 (University of Illinois at Chicago)微生物及免疫學系的研究小組,進行以原子力顯微鏡(Atomic Force Microscopy, AFM)對紅血球的型態進行分析,以協助判斷

June 2006

胚胎幹細胞首度被證明可以治癒癱瘓的老鼠

移植胚胎幹細胞所衍生的運動神經元至癱瘓的老鼠,可以讓他們恢復行走的能力。這項研究提供未來使用人類幹細胞作癱瘓復健治療的新契機。

Bacteria have their own immune system protecting against outside DNA

Bacteria like Salmonella have a complicated immune system that helps them recognize and isolate foreign DNA trying to invade their cell membrane, according to a University of Washington-led study in the June 8 issue of Science Express. The research, which

How Life Began: New Research Suggests Simple Approach

Somewhere on Earth, close to 4 billion years ago, a set of molecular reactions flipped a switch and became life. Scientists try to imagine this animating event by simplifying the processes that characterize living things.

Dawn of the zombies

The Our vision is building the human body on a chip," says Linda Griffith at the Massachusetts Institute of Technology. A living, 3D, interconnected set of tissues. The idea is to create not feeling entities but brainless mini-bodies that will be ideal fo

性慾何來?從基因嗎?

人體內的多巴胺第四型受體(dopamine D4 receptor, DRD4)這個基因會控制腦部對多巴胺的反應,而多巴胺正式控制人體「愉悅」感覺的化學物質,而且跟人的性慾有關係。以色列耶路撒冷大學的Richard Ebs

May 2006

Extreme Life on Earth

The more we study life on Earth, the more we learn how amazingly resilient it is. Virtually everywhere we look, even in places previously thought to be completely inhospitable to life, we find creatures not just surviving, but thriving. We find organisms

Is evolution predictable?

Can we predict how animals and plants evolve in response to changes in the environment? Maybe, according to preliminary research from Rice University.

大自然的數學遊戲

如果你留心觀察這世界,任何地方總是存在圖案模式之美,與數字模式之奇。但是該怎麼用數學觀念解釋那些模式呢?闡明了那些模式之後,數學又能為我們的世界帶來什麼貢獻?

生命是什麼?

沒想到這本為非專家所寫的書,最後卻成為發現DNA結構、並導致分子生物學誕生的關鍵著作。西元2000年,我們慶祝破解人類基因組的密碼,追本溯源�

April 2006

Mathematical Model May Provide Insight into How We Sense

The individual cells responsible for responding to sensory inputs--the strong scent of a flower, the light touch of a spring breeze--can cope with only a small amount of input.

幹細胞的魔術師 - 解開長生不老的轉錄迴圈

胚胎幹細胞如何維持其具有發育成為數百種體細胞的全能性,是當前研究幹細胞的學者全力想解開的謎團之一。雖然已有許多的證據顯示,幹細胞的全能性有賴於外在訊號的誘導,但許多體細胞

活細胞對多層碳奈米管的吸收性

密西根大學研究人員認為,碳奈米管在若干領域如藥物學、燃料電池的氫氣貯存等,均深具前景。然碳奈米管最大的問題為多層碳奈米管對生態環境影響的未知性,在彼等的研究之前,苦無適當

March 2006

生物世界的數學遊戲

本書要談的就是數字與大自然的完美結合,以及生命中呈現的數學秩序。本書作者史都華是全球數一數二的通俗數學作家,《大自然的數學遊戲》一書的作者,在揭櫫形態數學的同時,他也預測

名詞動詞煩惱不同

哈佛大學心理系的科學家發現人類處理名詞和動詞這兩種不同的語法類別時,有不同區域的腦部生理活動。

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