A leading economist and researcher report from the front lines of a revolution in solving the world's most persistent problem. When it comes to global poverty, people are passionate and polarized. At one extreme: We just need to invest more resources. At the other: We've thrown billions down a sinkhole over the last fifty years and accomplished almost nothing. Dean Karl...(展开全部)

A perennial bestseller by eminent mathematician G. Polya, "How to Solve It" will show anyone in any field how to think straight. In lucid and appealing prose, Polya reveals how the mathematical method of demonstrating a proof or finding an unknown can be of help in attacking any problem that can be "reasoned" out - from building a bridge to winning a game of anagrams. Generatio...(展开全部)

乔治·波利亚（George Polya，1887—1985)，美国数学家和数学教育家。生于匈牙利布达佩斯。1912年获布达佩斯大学博士学位。1914年至1940年在瑞士苏黎世工业大学任数学助理教授、副教授和教授，1928年后任数学系主任。1940年移居美国，历任布朗大学和斯坦福大学的教授。1976年当选美国科学院院士。还是匈牙利科学院、法兰西科学院、比利时布鲁塞尔哲学科学院和美国艺术和科学学院的院士。其数学研究涉及复变函数、概率论、数论、数学分析、组合数学等众多领域。1937年提出的波利亚计数定理是组合数学的重要工具。长期从事数学教学，对数学思维的一般规律有深入的研究，著有《怎样解题》《数学的发现》《数学与猜想》。

A perennial bestseller by eminent mathematician G. Polya, "How to Solve It" will show anyone in any field how to think straight. In lucid and appealing prose, Polya reveals how the mathematical method of demonstrating a proof or finding an unknown can be of help in attacking any problem that can be "reasoned" out - from building a bridge to winning a game of anagrams. Generatio...(展开全部)

乔治·波利亚（George Polya，1887—1985)，美国数学家和数学教育家。生于匈牙利布达佩斯。1912年获布达佩斯大学博士学位。1914年至1940年在瑞士苏黎世工业大学任数学助理教授、副教授和教授，1928年后任数学系主任。1940年移居美国，历任布朗大学和斯坦福大学的教授。1976年当选美国科学院院士。还是匈牙利科学院、法兰西科学院、比利时布鲁塞尔哲学科学院和美国艺术和科学学院的院士。其数学研究涉及复变函数、概率论、数论、数学分析、组合数学等众多领域。1937年提出的波利亚计数定理是组合数学的重要工具。长期从事数学教学，对数学思维的一般规律有深入的研究，著有《怎样解题》《数学的发现》《数学与猜想》。

Winner of the 2011 Financial Times/Goldman Sachs Best Business Book of the Year Award Billions of government dollars, and thousands of charitable organizations and NGOs, are dedicated to helping the world's poor. But much of their work is based on assumptions that are untested generalizations at best, harmful misperceptions at worst. Abhijit Banerjee and Esther Duflo have pione...(展开全部)

Why do the poor borrow to save? Why do they miss out on free life-saving immunizations, but pay for unnecessary drugs? In "Poor Economics," Abhijit V. Banerjee and Esther Duflo, two practical visionaries working toward ending world poverty, answer these questions from the ground. In a book the "Wall Street Journal" called "marvelous, rewarding," the authors tell how the stress ...(展开全部)

Winner of the 2011 Financial Times/Goldman Sachs Best Business Book of the Year Award Billions of government dollars, and thousands of charitable organizations and NGOs, are dedicated to helping the world's poor. But much of their work is based on assumptions that are untested generalizations at best, harmful misperceptions at worst. Abhijit Banerjee and Esther Duflo have pione...(展开全部)

Why do the poor borrow to save? Why do they miss out on free life-saving immunizations, but pay for unnecessary drugs? In "Poor Economics," Abhijit V. Banerjee and Esther Duflo, two practical visionaries working toward ending world poverty, answer these questions from the ground. In a book the "Wall Street Journal" called "marvelous, rewarding," the authors tell how the stress ...(展开全部)

曾经对宗教持怀疑态度的麦道卫非常反对基督徒，他嘲弄和侮辱他们，并决心以自己的研究成果与他们辩论，反驳耶稣基督的话。令他十分吃惊的是，他所发现的事实恰恰相反。正如耶稣自己所宣告的那样，他是从神而来的人。 麦道卫在书中用公正的研究，引用权威学者的观点，让事实说话，解答各种对 基督信仰的质疑，均涉及信仰根基，是不可得多的简明“护教学”手册。 自从首次出版以来，《千古悬疑》已销售1500万册以上，改变了无数人的生命。现在，麦道卫父子在这更新的版本中，继续探讨现代人的问题 “我能确信我的生命有永恒价值吗？” “上帝或耶稣的事实是否确定可信？” 阅读这本书，掂量有关事实，经历耶稣基督的爱，然后看看发生什么。