Showing results by author "Tina Hesman Saey"

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    • Chemical Tags on DNA Appear to Differ Between Gay and Straight Men

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 7 mins
    • Unabridged
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    Twin study shows distinct patterns of markers along stretches of the genome.

    Regular price: $1.95

    • Big Data, Big Challenges

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 20 mins
    • Unabridged
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    In my quest to explore the unknown frontier inside my own body, I stumbled upon one of the most intractable problems facing science.

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    • CRISPR Gets a Makeover

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 20 mins
    • Unabridged
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    Scientists usually shy away from using the word miracle - unless they’re talking about the gene-editing tool called CRISPR/Cas9. “You can do anything with CRISPR,” some say. Others just call it amazing.

    Regular price: $1.95

    • Antiaging Treatment Shows Promise

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 4 mins
    • Unabridged
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    Killing worn-out cells helps middle-aged mice live longer, healthier lives, a new study suggests. Removing those worn-out, or “senescent,” cells increased the median life span of mice 24 to 27 percent over that of mice in which senescent cells built up normally with age, Mayo Clinic researchers report. Clearing senescent cells also improved heart and kidney function.

    Regular price: $1.95

    • Research Teams Duel Over Native American Origins

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 6 mins
    • Unabridged
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    A previously hidden genetic link between native peoples in Australia and the Amazon has inspired two different teams of researchers to reach competing conclusions about the origins of Native Americans.

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    • Mineralogy's Link to Ecology Makes an Earth Twin Unlikely

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 2 mins
    • Unabridged
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    The odds of finding another planet with Earth’s exact mineral composition are astronomically long, a mineralogist using tools borrowed from ecology calculates. Reproducing Earth’s mineral makeup elsewhere has a 1 in 10200 chance of success, Robert Hazen of the Carnegie Institution for Science in Washington, D.C., said December 6.

    Regular price: $1.95

    • Neandertal DNA Poses Health Risks

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 10 mins
    • Unabridged
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    Finding Neandertal ancestors in the human family tree was shocking enough when researchers announced it in 2010. Now, the implications for modern-day people carrying surviving Neandertal DNA may prove just as stunning.

    Regular price: $1.95

    • Babies Low on Key Gut Bacteria at Higher Risk of Asthma

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    First 100 days are critical period for microbe exposure.

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    • Life's Cycles: Poking Holes in Classic Models of Circadian Clock Evolution

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 20 mins
    • Unabridged
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    The Earth has rhythm. Every 24 hours, the planet pirouettes on its axis, bathing its surface alternately in sunlight and darkness. Organisms from algae to people have evolved to keep time with the planet's light/dark beat. They do so using the world's most important timekeepers: daily, or circadian, clocks that allow organisms to schedule their days so as not to be caught off guard by sunrise and sunset. A master clock in the human brain appears to synchronize sleep and wake with light. But there are more. Circadian clocks tick in nearly every cell in the body.

    Regular price: $1.95

    • Rats Offer DNA Clues to Alcoholism

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 3 mins
    • Unabridged
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    Alcoholism may stem from genes being turned on and off incorrectly, a study of hard-drinking rats suggests. Rats bred either to drink heavily or to shun alcohol have revealed 930 genes linked to a preference for alcohol.

    Regular price: $1.95

    • A Brain at Rest Offers Clues to Parkinson’s, Alzheimer’s

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    Networks of brain regions that are active when the brain is at rest - not thinking about anything in particular - differ between healthy people and those with Parkinson’s or Alzheimer’s diseases, a new study finds.

    Regular price: $1.95

    • Toxicologists Look to Epigenetics

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 8 mins
    • Unabridged
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    Chemical tags on DNA could one day help assess exposure risks.

    Regular price: $1.95

    • Signs of Food Allergies Seen at Birth

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 3 mins
    • Unabridged
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    Some babies are born with immune cells primed to cause food allergies, a new study suggests.

    • 4 out of 5 stars
    • The research is inconclusive but . . .

    • By Apallo on 05-27-18

    Regular price: $1.95

    • Baby Brains Undergo Dramatic Changes In Utero

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    The developing brain undergoes rapid and tightly coordinated changes in a molecular process known to help regulate gene activity, a new study shows.

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    • DNA Tests Inflate Species Counts

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 4 mins
    • Unabridged
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    Classification requires many types of data, researchers say.

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    • 'Selfish' DNA Flouts Rules of Inheritance

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 5 mins
    • Unabridged
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    Although harmful, R2d2 can sweep through mouse populations. "'Selfish' DNA Flouts Rules of Inheritance" is from the March 19, 2016 issue of Science News.

    Regular price: $1.95

    • Catalog of DNA Modifications Produces Surprises

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 7 mins
    • Unabridged
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    A series of fine-tuned maps of DNA packaging in human cells reveal dynamic new views of how the genome.s instructions are carried out to build a person.

    Regular price: $1.95

    • Conifer Ancestors Had a Double Dose of DNA

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    Conifers grew giant genomes thanks to double doses of genetic material.

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    • DNA Data Point to Unknown Hominid

    • By: Tina Hesman Saey
    • Narrated by: Jamie Renell
    • Length: 4 mins
    • Unabridged
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    Traces of long-lost human cousins may be hiding in modern people’s DNA, a new computer analysis suggests.

    Regular price: $1.95

    • Defense Hormones Guide Plant Roots Mix of Microbes

    • By: Tina Hesman Saey
    • Narrated by: Mark Moran
    • Length: 3 mins
    • Unabridged
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    Salicylic acid attracts some bacteria, repels others, study finds.

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