Sentences with phrase «because human samples»

Filling all of that capacity is (and remains) a major challenge, because human samples are precious.

Not exact matches

Researchers had never managed the feat on such ancient human DNA; even younger samples are often unreadable because they are riddled with bacteria and other contaminants.
It was difficult to capture an image through thicker samples, such as a human arm, because too much light was scattered back from the tissue.
The raw data included DNA from bacteria in the teeth, usually considered «old waste data,» says Willerslev, because it can contaminate the human DNA samples.
Palsson and his team were interested in red blood cells because they are the simplest human cells and are readily available from blood samples.
The team determined that the fecal samples were from humans because other mammals, such as wolves and lions, can not convert cholesterol to coprostanol, as primates do when they eat meat.
The use of the modern human reference samples for stature estimates are inappropriate because they assume body proportions akin to modern humans, which are not possessed by australopithecines.
He compared the pit — so named because it is spherical and positioned near the center of a warhead — to the heart of a human being, explaining that destructive testing is like taking a blood sample capable of exposing harmful maladies.
However, extracting these miniscule bits of genes from sediment samples is easier said than done, primarily because the genes of our human ancestors make up just one tiny fraction of the vast genetic debris deposited in caves over thousands of years.
Usually, because of the inaccessibility of brain tissue in living humans, epigenetic studies are carried out using blood samples.
In the early 1970s, Swedish researchers showed vitamin D3 to have a substantially higher affinity for human DBP than vitamin D2.49 Their sample size was not reported and probably very small, and they unfortunately could not test the calcidiol forms of these vitamins because 25 - hydroxyvitamin D3 was at that time not yet commercially available.
According to yesterday's news (see here for an article from the National Post), the government of New Brunswick will be asking the Supreme Court of Canada to look into the status of its language laws as it appeals the decision of its appellate court upholding the decision of a provincial judge who excluded breath - sample evidence of a suspected impaired driver pursuant to s. 24 (2) of the Canadian Charter of Human Rights and Freedoms because his language rights had been violated (see R. v. Losier, 2011 NBCA 102 (CanLII)-RRB-.
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