Google Scholar 是 Google 于 2004 年底推出的专门面向学术资源的免费搜索工具，能够帮助用户查找包括期刊论文、学位论文、书籍、预印本、文摘和技术报告在内的学术文献，内容涵盖自然科学、人文科学、社会科学等多种学科。 （一） Google Scholar 的资料来源 主要有以下几方面的资料来源： 1 、 ...
Written by: Jason Lankow, Ross Crooks, Joshua Ritchie, and Brett McKay There are the books you read, and then there are the books that change your life. We can all look back on the books that have shaped our perspective on politics, religion, money, and love. Some will even become a ...
The list below is from the book The Novel 100: A Ranking of Greatest Novels All Time (Checkmark Books/Facts On File, Inc.: New York, 2004), written by Daniel S. Burt. Burt holds a Ph.D from New York University with a specialty in Victorian fiction and was for nine years a dean ...
Since the birth of the first " test tube baby " in 1978, more than three million children have been born with the help of reproductive technology. Most of them are healthy. But as a group they're at a higher risk for low birth weight, which is associated with obesity, hypertension and type 2 ...
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