Why have we lost our ability to focus? What are the causes? And, most importantly, how do we get it back? For Stolen Focus, internationally bestselling author Johann Hari went on a three-year journey to uncover the reasons behind our shortening attention spans. He interviewed the leading experts in the world on attention, and learned that everything we think about this subject ...(展开全部)

In the United States, teenagers can focus on one task for only sixty-five seconds at a time, and office workers average only three minutes. Like so many of us, Johann Hari was finding that constantly switching from device to device and tab to tab was a diminishing and depressing way to live. He tried all sorts of self-help solutions — even abandoning his phone for three months ...(展开全部)

In the United States, teenagers can focus on one task for only sixty-five seconds at a time, and office workers average only three minutes. Like so many of us, Johann Hari was finding that constantly switching from device to device and tab to tab was a diminishing and depressing way to live. He tried all sorts of self-help solutions — even abandoning his phone for three months ...(展开全部)

How many of us never meet the person with whom we could be happy? How many of us limit our romantic choice to the people who happen to wash up on our shore? In "Why Mr Right Can't Find You," J.M. Kearns, Ph. D., shows that finding true love can be a proactive adventure. In chapters like How Men See Women, The Underrated Chance Encounter, and The Truth About Bars, J.M. Kearns la...(展开全部)

Today, computer-system optimization, at both the hardware and software levels, must consider the details of the memory system in its analysis; failing to do so yields systems that are increasingly inefficient as those systems become more complex. This lecture seeks to introduce the reader to the most important details of the memory system; it targets both computer scientists an...(展开全部)

Today, computer-system optimization, at both the hardware and software levels, must consider the details of the memory system in its analysis; failing to do so yields systems that are increasingly inefficient as those systems become more complex. This lecture seeks to introduce the reader to the most important details of the memory system; it targets both computer scientists an...(展开全部)

Winner of the Kate Greenaway Medal and the Smarties Prize for Children's Books, Can't You Sleep, Little Bear? is a luscious-as-chocolate tale that should find a place on every pre-school bookshelf. While Big Bear tries to read his Bear Book, Little Bear tries to sleep, but can't. He's scared of the dark. So Big Bear keeps bringing him progressively bigger lanterns. But nothing ...(展开全部)

【作家简介】 马丁·韦德尔 Martin Waddell（爱尔兰） 1941年出生于北爱尔兰的贝尔费斯特，是爱尔兰知名作家，作品曾多次获得英国史马提斯奖(The Smarties Book Prize)、凯特格林威大奖(The Kate Greenaway Medal)、鹅妈妈大奖等国际知名奖项。作品包括：《小猫头鹰》(Owl Babies)、《月光》，以及与以灵活的线条及巧妙的布局取胜的绘者芭芭拉·弗斯(Barbara Firth)合作的系列图画书：《你睡不着吗？》(Can't you sleep, little bear?)、《做得好，小小熊》(Good job, little bear)、《我们回家吧》Let's go home, little bear；和海伦·奥克森伯瑞(Helen Oxenbury)合作的《可怜的鸭子》(Farmer du...(展开全部)