Child abuse among the Zulus: A people in cultural transition Due to industrialization and Westernization the life-style of the Zulu people has undergone a rapid and radical change. This has led to a breakdown of the ... WEK Loening - 《Child Abuse & Neglect》 被引量: 15发表: 1981年 '...
The data in this piece are up-to-date as of May 31, 2020. While numbers of cases rise every day, and increased testing will likely change the rates of infection and death by race and ethnicity, these data show important patterns and deep-seated issues when it comes to rates of COVID-...
grouped.apply(sum): applies sum to each column by abovemean Working with datetime objects, you can do df.dt. and then hit tab to see the different options. Similarly, df.str can give us all of our string functions. numpy NumPy is arguably the most fundamental package for ...