ヒトの皮膚由来の幹細胞を骨細胞に変え、マウスに移植＝米研究者
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脳はどのように働くか―神経科学の最前線
人が見たり聞いたり、愛したり憎んだり、計画したり行動したりすると、脳のさまざまな領域が明るく表示される画像を見ることができるようになったのはここ20年のことだ。神経科学者の研究のおかげである。こうした研究は第一歩としては重要なものだったが、脳の働きについて、誤解を招きかねない単純な見方を招きもした。これまでの研究では、特定の知的能力と特定の脳の領域を関連付けていた。19世紀の骨相学では、精神的な特徴は頭蓋骨の形と関係があるとされたが、それとほとんど変わらない。 多くの人が知りたいと思っているのは、脳ではなく心だ。私たちは日々、経験したり行動したりしているが、なぜそのように経験したり行動するのだろう。心の一部と脳の一部を関連づけたところで、この質問には答えられない。そもそも、首から上にあるものが私たちの心を司っているということは1世紀も前からわかっていることだ。それに加えて、視覚を司っている
プラスチック容器で食べ物を温めるのは危険か
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アインシュタインは正しかった―重力理論を7000光年かなたで検証
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「金もうけに、きりはない」—米経済学者が実証
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就職や出世に影響する話し方
Nearly everyone has worked with or for someone whose voice drives them crazy, yet many are clueless that their voices are making a bad impression. Sue Shellenbarger joins Lunch Break with a look at latest research in “people analytics.” Photo: Getty. 力強く、なめらかな声は最高経営責任者（CEO）へ出世するチャンスを高める。一方、鼻にかかった哀れっぽい声や、がらがらした声、甲高い声は同僚の気を散らすことになりかねない。ペンシルベニア州インゴマーにある人材コンサルタントのフィリス・ハートマン氏は「『黙ってくれないか』と言いたい衝動にかられるかもし
ぜんそく持ちの子どももよく遊べ―呼吸器専門家の見解に変化
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米大学院生ら、ハーバード大教授の影響力ある経済学論文に異議
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新型鳥インフルワクチンの製造、困難な可能性も
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セディバ猿人、ヒトとサルの寄せ集めの特徴−人類の祖先と断言できず
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太っていたら罰金―米企業「アメ」より「ムチ」で医療費削減目指す
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科学者はエイズワクチンの設計図に近づく
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赤ちゃんのように眠ると瞬時に学習 睡眠が知識習得のカギ
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女性よ、大志を抱け―サンドバーグ氏の言葉は米社会を変えるか
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数年後に心臓丸ごと再生も 進化する臓器培養技術
Building a complex human organ in the lab is no longer a dream of science fiction. At London's Royal Free Hospital, a team of 30 scientists is manufacturing a variety of body parts, including windpipes, noses and ears. WSJ's Gautam Naik reports. Photo: Gareth Phillips それはもともとあった細胞が洗い落とされ、科学者たちがスキャフォールド（型枠）と呼ぶものだけになるまで特殊な洗剤に浸されていた人間の心臓だった。 Copyright ©2024 Dow Jones & Company, Inc. All Rights Reserv
遺伝子治療、血液がんに高い有効性
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心血管疾患、古代からあった可能性 食事や文化に関係なく
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