Double X Science - It's In Your Genes

Search Results for: label/Maillard Reaction

  • 100 Years

    venting aging.  If we look at the cellular level, scientists discovered that complete copying of DNA is dictated by telomeres and the enzyme telomerase, which earned 3 scientists the Nobel Prize in Physiology and Medicine in 2009. The unique DNA sequence in the telomeres protects chromosomes from degradation. When telomeres are shortened, cells age. Eventually, the telomeres will shorten, and cells will age and die. Unfortunately, extending telo…

    Authored by on October 19, 2012

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

    …molecules themselves break down into a surprisingly small number of building blocks. The proteins that make up all of the living things on this planet and ensure their appropriate structure and smooth function consist of only 20 different kinds of building blocks. Nucleic acids, specifically DNA, are even more basic: only four different kinds of molecules provide the materials to build the countless different genetic codes that translate into all…

    Authored by on June 8, 2012

  • Pregnancy 101: The science behind the wand of destiny

    …om laughing so hard, let us get back to the science. The first “slice of bread” is called the reaction zone, the “sandwich filling” is called the test zone, and the “last slice of bread” is called the control zone (see figure 2). Each of these zones is coated with capture antibodies, but differ from each other in how they work.  The antibodies on the reaction zone will capture only hCG and will detach from the strip upon exposure to urine. The…

    Authored by on November 26, 2011

  • Explosions, Just a Bit More Than Fireworks

    …an element (within a compound.) The original definition can easily be shown in terms of explosives. The simple mixing of hydrogen and oxygen with the addition of just a bit of heat, will form water in an explosive display: 2H2 + O2 –> 2H2O The little flame used to catalyze the reaction in the video is actually much more energy than is necessary to cause this reaction to occur, but it’s difficult to get an even littler source of heat…

    Authored by on July 4, 2012

  • After Newtown missteps, journalists get guidelines

    …almost twice as likely to say that they don’t want to live or work near a person with mental illness if they read an article about a person with mental illness involved in a mass shooting, according to a study published March 20 in the American Journal of Psychiatry. Interestingly, this tendency is the same even if the article avoids any mention of mental illness. This may be because this link between violence and mental illness is deeply engrain…

    Authored by on March 27, 2013

  • Parent HPV vaccine concerns persist

    …90 percent of all genital warts, and HPV-16 and 18, which are responsible for about 70 percent of all cervical cancers. The CDC recommends that girls be routinely given the HPV vaccine at 11 and 12 years old. Those aged 13 to 26 who haven’t gotten the vaccine yet should also get it, though it will only protect them against any strains of HPV they have not already contracted. (HPV is incredibly common – about 6.2 million people contract it e…

    Authored by on April 18, 2013

  • Friday Roundup: Land-walking octopus, he’s having a baby, defining veggies, & lots for the ladies

    …’s efforts to perform a butt injection on a woman using “Fix a Flat.” It’s probably best to just love your butt for what it is, which isn’t Fix a Flat. In smarter news, NASA is rolling out Aspire 2 Inspire, targeting girls interested in science. Know a girl who’s interested in science? You can start with the Aspire 2 Inspire video below about women in science: Speaking of women in science, former dean of th…

    Authored by on November 25, 2011

  • From alchemist to chemist: What kind of chemistry is that?

    nd, inorganic chemistry involves all the elements present in the periodic table. Inorganic chemistry delves into theories surrounding the bonding of metals to molecules and the shapes of molecules themselves. Figure 2: Components of Urine While the process of collecting phosphorus from urine requires organic and inorganic chemical reactions, the process of making the products in urine is biochemistry. Note in figure 2 that the primar…

    Authored by on December 15, 2011

  • Depressing genes

    Can depression be a matter of genetic fate? by Siobhan Mitchell          [This post is the latest installment in our I Am Mental Illness series.] What if you could know if you were fated to be depressed? With the rise of personal genotyping services such as 23andme, almost can find out what their psychiatric ‘fate’ will be, but what do you do with this information once you have it? When I first considered testing myself for depressio…

    Authored by on May 17, 2013

  • Autism and the DSM-5

    …ial social aspect of this change, and the one thing that might, when it comes to autism, elevate the DSM-5 above the level of doorstop. [Image credit: Dave Bullock, UK, via Wikimedia Commons under Creative Commons Attribution 2.0 generic license.]…

    Authored by on April 23, 2013

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