Sentences with phrase «hair samples»

This finding supports the use of hair samples as a tool for assessing cortisol levels during pregnancy.
They can also take hair samples to assess a history of drug use.
They analyzed these samples along with hair samples from 76 living humans of European American and African descent.
Researcher Jack Hopkins used barbed - wire snares to collect hair samples from bears in Yosemite National Park.
Ringworm can be diagnosed or ruled out by submitting hair samples for fungal culture.
Perhaps unsurprisingly, researchers at Duke University in Durham, North Carolina, found high levels of mercury (above the maximum recommended by the World Health Organization) in hair samples from 40 % of the Madre de Dios residents that they tested.
Pre-experiment baseline hair sample masses of the hair on the great tit eggs.
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.
She and her colleagues examined hair samples from 15 mummies from the Kellis 1 cemetery in Dakhla oasis, Egypt, and a further three samples from mummies housed in museum collections in the US, the UK and Ireland.
The scientists conduct non-invasive DNA, isotoe and hormone analysis on grizzly bear hair samples collected from 72 sites spread across 5,000 - square kilometers f remote temperate rainforest in Heiltsuk tradition.
Analysis of isotope ratios in hair samples showed how much of the bears» diets came from human food.
The researchers could not obtain hair samples from these bears to verify if they had Carpathian origins.
He hopes DNA tests on 15 alleged hair samples will provide proof that there's a gorilla, or something like one, in our midst.
Natalie McCreesh, an archaeological scientist from the KNH Centre for Biomedical Egyptology at the University of Manchester, UK, and her colleagues studied hair samples taken from 18 mummies.
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.
To show this, researchers rubbed different hair samples with a rubber film, to create an effect similar to rubbing a balloon over your hair.
Secondary: frequency and amount of substance use through self - report with small proportion validated through hair sample analysis; readiness to change using questionnaires; perceived negative consequences of alcohol or drug use;...
Had the Plaintiff gone to Sparrow's ER on the morning of the 12th and had a SANE nurse do a rape kit there might have been pubic hair samples or semen samples, both which might produce DNA evidence which would strengthen the prosecution case.
Last year, Oxford geneticist Bryan Sykes sequenced DNA from alleged yeti hair samples and got a perfect match to an ancient Scandinavian polar bear.
«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.
The researchers were able to examine bioarcheological hair samples from six individuals that were up to 250 years old, demonstrating the robustness of these proteins.
Contemporary hair samples were collected during bear management actions and from barbed - wire hair snares deployed throughout Yosemite.
But two hair samples point to a possible new and (you guessed it) mysterious species: a bear roaming the Himalayas that may be related to ancient polar bears.
David Coltman, a wildlife geneticist at the University of Alberta, decided to analyze the fabled hair sample using DNA analysis techniques.
For instance, RRT questions get much closer than conventional surveys to the actual incidence of drug use that is revealed by screening tests on hair samples.
The mostly nameless profiles will also include hair samples, dental records and a photo of the corpse.
«The occipital hair samples of patients with diffuse alopecia and the frontal hair counts of those with androgenetic alopecia also showed an increase of anagen hair, but differences were not significant.»
Later, bioscientific works such as Gary Schneider's Genetic Self - Portraits (1997 — 1998) or Marc Quinn's A Genomic Portrait: Sir John Sulston (2001)-- in which a sample of the sitter's DNA in agar jelly is mounted in stainless steel — took the bearers of identity to be images of chromosomes, enlargements of microscopic hair samples, retinal images, and even mounted DNA itself.
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.
A number of sectioned hair samples, however, were significantly depleted in 15N relative to the mean.
Meanwhile, a Tuesday morning hearing in the criminal case against the suspect accused in the Florida high school shooting was canceled after lawyers reached an agreement for prosecutors to get hair samples, fingerprints, DNA and photographs of Cruz.
Two years later, as Daniel headed off to the Solomon Islands to collect hair samples and Sarah left for India to study langurs, they married in Kathmandu.
The Respondents, Jonathan Postma and Raphael Roy - Jauvin are passengers injured in a helicopter accident while out collecting grizzly bear hair samples for the Yukon Government.
It's become routine in wildlife biology to identify animals through the DNA in hair samples and scat.
«Long - term stress linked to higher levels of obesity, hair samples show: People who suffer long - term stress may also be more prone to obesity.»
Then he affixes an array of copper brushes, the kind used to clean rifle bores, but used here for obtaining hair samples.
The pre-experiment baseline hair sample mass, i.e. the amount of hair on the eggs before the first playback, predicted the mass of the new hair brought to the nest (Table 1).
Each trimester the mothers underwent a series of tests that evaluated their stress and psychopathological symptoms while simultaneously taking hair samples from which the researchers extracted the cortisol corresponding to the last three months.
After creating a stir last October with preliminary results, an international research team has published an analysis of dozens of hair samples from mystery animals around the world.
Each trimester the mothers underwent a series of tests that evaluated their stress and psychopathological symptoms while simultaneously taking hair samples from which the researchers extracted the cortisol corresponding to the last three months.
The resins and embalming materials used to prepare the artificially mummified bodies were not found in the hair samples, suggesting that the hair was protected during embalming and then styled separately.
A third report, released last year, examined the scientific validity behind forensic comparative evidence such as DNA, hair samples, latent fingerprints and bite marks.
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