Takahiro Wada, Normia Kamiji, and Shunichi Doi of Ritsumeikan University recently examined an application of a model of motion sickness incidence (MSI) (which Wada, Kamiji, and others developed in a 2007 paper) to vehicle passengers. They generalized earlier work by including more types of motion — especially head rotation — and they used the model to examine the effect of head-tilt strategy on motion sickness:
Thus, the effect of the head tilt strategy on motion sickness was investigated by the proposed mathematical model. The head movements of drivers and passengers were measured in slalom driving. Then, the MSI of the drivers and that of the passengers predicted by the proposed model were compared.
Love, Sex, and Choices (LSC) is a soap opera video series created to reduce HIV sex risk in women.
METHODS: LSC was compared to text messages in a randomized trial in 238 high-risk mostly Black young urban women. 117 received 12-weekly LSC videos, 121 received 12-weekly HIV prevention messages on smartphones. Changes in unprotected sex with high risk partners were compared by mixed models.
RESULTS: Unprotected sex with high risk men significantly declined over 6 months post-intervention for both arms, from 21-22 acts to 5-6 (p < 0.001). This reduction was 18% greater in the video over the text arm, though this difference was not statistically significant. However, the LSC was highly popular and viewers wanted the series to continue.
CONCLUSION: This is the first study to report streaming soap opera video episodes to reduce HIV risk on smartphones. LSC holds promise as an Internet intervention that could be scaled-up and combined with HIV testing.
This study is not yet open for participant recruitment.
Verified July 2015 by Northeastern University.
Estimated Enrollment: 912
Study Start Date: July 2015
Estimated Study Completion Date: March 2019
Estimated Primary Completion Date: December 2017 (Final data collection date for primary outcome measure)
PURPOSE: This study tests a 12-episode Internet-based, guide enhanced Love, Sex, & Choices (LSC) HIV prevention soap opera video series for smartphones or computers, in a randomized clinical trial among predominately at-risk African American urban women.
The following hypotheses are to be tested: 1) The LSC treatment arm will show lower unprotected sex risk, meaning lower frequency of unprotected sex (vaginal + anal) with high risk partners at 6 months post intervention compared to an attention control arm 2) The LSC treatment arm will show higher participation in HIV testing at 6 months post intervention compared to the control.
About this project. We’ve invented a way to learn about whales while removing the need to harass them in the process. It’s called Snotbot.
What is a Snotbot? Snotbots are custom-built drones created in partnership between Ocean Alliance and Olin College of Engineering. They hover in the air above a surfacing whale and collect the blow (or snot) exhaled from its lungs. Snotbot then returns that sample back to researchers a significant distance away….
By using Snotbots, the whale never knows the data is being collected. The custom-built drones fly well above the surface of the water and into the blow, the subjects are never touched or approached closely. Ideally, whale researchers should be positioned about half a mile away from their subjects, giving the whales plenty of room to go about their business. Dozens of technological hurdles had to be overcome in order to make the drones capable of collecting a physical sample at this distance in an uncontrolled marine environment.
“In subsequent years, as consumer confidence soared, so, too, did the purchasing of goods that would find their way into people’s rectums.” Hidden objects — of many kinds — turn up in this week’s Improbable Research podcast.
Click on the “Venetian blinds” icon — at the lower right corner here — to select whichever week’s episode you want to hear:
The mysterious John Schedler perhaps did the sound engineering this week.
The Improbable Research podcast is all about research that makes people LAUGH, then THINK — real research, about anything and everything, from everywhere —research that may be good or bad, important or trivial, valuable or worthless. CBS distributes it, both on the new CBS Play.it web site, and on iTunes and Spotify).