Double X Science - It's In Your Genes

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  • Biology Explainer: The big 4 building blocks of life–carbohydrates, fats, proteins, and nucleic acids

    …e X Extra: A triglyceride can have up to three different fatty acids attached to it. Canola oil, for example, consists primarily of oleic acid, linoleic acid, and linolenic acid, all of which are unsaturated fatty acids with 18 carbons in their chains. Why do we take in fat anyway? Fat is a necessary nutrient for everything from our nervous systems to our circulatory health. It also, under appropriate conditions, is an excellent way to store up…

    Authored by on June 8, 2012

  • What’s on your wishlist?

    …ry of cooking. They might want to check out Cooking for Geeks or Modern Cuisine: The Art and Science of Cooking. Do you love gadgets? Do you have the newest smartphone or tablet? Perhaps you’ve already checked out the Nexus 10 tablet from Google (from $399) which arrived last month. The Nexxus has arrived to generally good reviews to compete with the standard iPad (from $399) tablet size. Google and Apple have also gone “mini” with the Nexus 7…

    Authored by on November 23, 2012

  • After Newtown missteps, journalists get guidelines

    Protip: Don’t diagnose based on speculation. by Jessica Wright                Attention journalists: If you’ve been calling people “nuts” or “deranged” in your stories, the Associated Press is recommending that it’s time you stopped. This guideline — along with the common-sense assertion that writers shouldn’t diagnose individuals with a mental illness based entirely on speculation — is part of a new recommendation added to the AP styleboo…

    Authored by on March 27, 2013

  • Good Deeds, Good Science: IAmScience Kickstarter

    …scussion is Kevin Zelnio’s baby, #IAmScience.  In the events leading up to #IAmScience, Zelnio asks why the scicomm community was so bothered by Mayor and her keynote address.  His point, which was well said despite of the 140 character limitation, basically called out those who weren’t practicing what they preached. This was followed by a brutally honest recap of how Zelnio made his way into science, which included drug use, homelessnes…

    Authored by on February 24, 2012

  • Friday roundup: Nature is beautiful, weird, terrifying, & gross, and vaccines are a social responsibility

    Madagascar oxymoron: a new species of giant mouse lemur has been discovered bya Malagasy-German research team. Credit: B. Randrianambinina. Women in science An important woman in science you may have never heard of,  Clelia Mosher .  Mae Jemison, first African-American woman astronaut to travel into space, now selected to head up the Pentagon’s 100-year Starship project . Nature is beautiful. Nature is weird. Nature is terrif…

    Authored by on January 14, 2012

  • Backyard Brains: Affordable neuroscience

    Mouse neurons. Image via Wikimedia Commons. Originally published in PLoS Biology. Nerve cells, called neurons, are special cells. They interact with each other and with other tissues in part by using electrical impulses. The cool thing about these cells is that thanks to their electrical signaling, we can measure when they’re sending their messages. A neuroscientist friend of mine once poetically described as “exquisite̶…

    Authored by on November 29, 2011

  • Making Light in Electronics

    By DXS Physics Editor Matthew Francis   A while back, I wrote about one of the most common ways of making electric light: fluorescent bulbs. Understanding fluorescent lights requires quantum mechanics! While a lot of quantum physics seems pretty removed from our daily lives, it’s essential to most of our modern technology. In fact, reading what I’m writing requires quantum mechanics, since you are using a computer (maybe a handheld…

    Authored by on April 20, 2012

  • Depressing genes

    …ch experience — yet it was obvious he didn’t have the knack for it. This student’s dogged pursuit of a mental health career made me wonder what kind of emotional turmoil he experienced which would make him think, at age 19, that psychiatry was the only vocation worth working towards. Then there were the two graduate students who both worked incredibly hard and were both prone to obsess about their experiments. Each burned off stress in quit…

    Authored by on May 17, 2013

  • Is the bar high enough for screening breast ultrasounds for breast cancer?

    …nt movement and legislation to inform women that they have dense breasts. Merits and pitfalls of device approval The approval of breast ultrasound hinges on a study of 200 women with dense breast evaluated retrospectively at 13 sites across the United States with mammography and ultrasound. The study showed a statistically significant increase in breast cancer detection when ultrasound was used with mammography. Approval of a device of this nat…

    Authored by on September 21, 2012

  • Autism and the DSM-5

    …questions in the context of these criteria. I’ve expanded on a couple of these reports at length elsewhere, as have others with an interest in the subject. The short version is that studies overall indicate that at the least, 10% of people who would currently have an autism diagnosis under the DSM-IV-TR criteria would lose that diagnosis under the DSM-5, and some studies go as high as 55% in their estimates. Even more troubling? The committee’s s…

    Authored by on April 23, 2013

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