Science Behind the News: Opinion Polls and Random Sampling

submitted by: nsf
During political elections, news organizations often use public opinion polls to help gauge which candidate is the front runner, and why. University of Michigan's Dr. Vincent Hutchings explains the science of random sampling that makes it possible to query a few hundred or thousand people and use that data to accurately determine how the general public might vote. "Science Behind the News" is produced in partnership with NBC Learn. Provided by the National Science Foundation & NBC...

MWV #81 - Sheldon Campbell - The Singing Microbiologist

submitted by: MicrobeWorld
Sheldon Campbell sings about microbiology. Dr. Campbell teaches microbiology at Yale School of Medicine and he uses music to enhance his lectures. He has one song for every block of lectures he gives on a major topic. Songs he's written include a song about fungi, tick borne disease, tuberculosis and one that reviews all of microbiology in eight minutes. Dr. Campbell hasn't done any testing to see his songs are more effective at getting his message across but he does get the occasional...

Maternal knowledge following nutrition behavior change communication is conditional upon both health workers’ knowledge and knowledge sharing efficacy in rural Haiti

submitted by: mduduzi
In the context of a food assistance program in rural Haiti, we developed measures of the effectiveness of community health worker (CHW)-delivered behavior change communication (BCC). We administered knowledge tests to 954 mothers and 38 CHWs to define 4 measures: CHW knowledge, maternal knowledge, knowledge-sharing efficacy (proportion of CHW knowledge shared), and shared correct knowledge between the CHWs and the mothers with whom they interacted. On the basis of the tests, CHWs had high...
Authors: Mduduzi Mbuya

Assessing the Impact of Military Service on Our Returning Veterans

submitted by: nsf

With over 200,000 individuals currently separating from military service each year, a growing number of veterans are faced with readjusting to civilian life. Researchers study employment, health and family life of veterans.

Researching how musical training affects older adults' speech perception in a noisy environment

submitted by: nsf

Playing a musical instrument can do wonders for our brain. But how does it affect our hearing later on in life? Dr. Nina Kraus of Northwestern University is studying just that.

Perception of Danger in Tornado Alley

submitted by: nsf
Could lightening really strike twice? It often does in Tornado Alley, where storms wreak havoc and crush entire communities in minutes. But do people see it that way? After the 2006 Iowa City tornado, psychologist Jerry Suls and colleagues at the University of Iowa explored how Iowa City's residents perceived the risk of being hit by tornadoes in the future—perceptions that could have implications for disaster preparedness and response. Credit: Produced by Amina Khan, National Science...