Sentences with phrase «studied hair samples»

Not exact matches

«We hope hair samples will help establish the role that changes in cortisol levels throughout pregnancy have on the health of women and their children,» said study co-author Laura Smy, a PhD student at the University of Toronto.

Dr. Charlier argues that human remains in museums and scientific institutions can be divided into four categories, «ethnographical elements» such as hair samples with no certain identification; anatomical remains such as whole skeletons or skulls; archaeological remains; and more modern collections of skulls, used in now discredited studies in the early 20th century.

The study will involve doing an analysis not only of benzene biomarkers and other volatile organic compounds, but also of certain heavy metals in urine and hair samples.

«Our recent work has demonstrated that we can determine what mammals are in a protected area without hunting, without trapping, without the use of scat or hair samples, and especially without camera traps - all of which are problematic methods for one reason or another,» said study author Mark Siddall, a curator in the Museum's Division of Invertebrate Zoology.

Darimont and his co-workers collected 550 hair samples this year from their study area near the town of Bella Bella, which lies halfway up British Columbia's coast.

By the time millions of people had discovered the world of forensic science through TV programs such as «CSI» and «Forensic Files,» Heather Mahalik was already busy studying blood spatters and collecting hair samples.

Function lme in the nlme package was used to estimate the effect of the study area (with nest box identity as a random effect) on the pre-experiment baseline hair sample mass.

Of 120 scat samples found by searching the «cat area» of Hawkins» study site, «65 percent were found to contain rodent hair and 4 percent feathers.»

Patrick Thomas, the curator who initiated that effort, told me that the products containing musk were particularly good at eliciting the «cheek - rubbing behavior» that is helpful in studies seeking hair samples from passing cats as a way to check their DNA.

By contrast, a second study provides each subject with a wide range of facial images designed specifically to evaluate different dimensions of facial recognition (skin colour, hair colour, ethnicity, facial shape, etc.), each subject is tested over the full range of recall time periods, and a blood sample is taken from which serum concentrations of several well - described stress hormones are measured.

While forensic biologists are responsible for collecting and testing of blood, body fluid, and hair samples, forensic chemists study chemical substances and compounds related to crime activities.