For the past few decades, telephone survey researchers have faced increasing difficulty contacting Americans and getting reluctant people to cooperate. Surveyors also face the challenge of adequately ...

Estimates of narwhals summering in Canadian Arctic waters have improved because of new techniques. Previous estimates had placed populations between 20,000 and 30,000. New estimates increase that ...

Quantitative methods (i.e., statistics) are used often to answer important social questions. Sociologists, economists, political scientists, and other social researchers rely on large data sets built ...

The current survey was conducted Aug. 27 to Sept. 24, 2009 among 14,760 respondents in Britain, Bulgaria, the Czech Republic, France, Germany, Hungary, Italy ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

Maritime classification society American Bureau of Shipping (ABS) and Nakilat - Keppel Offshore & Marine Ltd. (N-KOM) have teamed up to examine how techniques developed by ABS for its program of ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

Have you wondered what amphibians are living in and around your local pond or other waterbodies? You might be surprised by the frogs, toads and newts that you can find. If you'd like to learn how to ...

Are you fascinated by the UK’s native reptiles? There are six amazing species of snakes and lizards that call this country home. You can find out more about them in our reptile survey methods and ...