Posts tagged ‘dna’

Genetics of Jewish lineages

Dr. Hammer, in the news again… a nice mix of science and religion working together 🙂

Advertisements

Continue Reading September 24, 2009 at 2:20 pm Leave a comment

Tucson Science readers are smarter, sooner

This last week two articles written here have shown that Tucson Science readers are the first to learn about the important research being done in the Old Pueblo before others.

via Tucson Science is ahead of the news.

August 27, 2009 at 11:56 am Leave a comment

DNA – Do Not Ask… a true Prisoner’s Dilemma!

This is a ridiculous ruling. DNA data, which they agree has an “unparalleled ability,” but the prisoners (who have already been convicted) don’t have a right to a DNA test… maybe it’s because we will find more innocent people in jail than we thought… they have already exonerated 17 people on death row!

Continue Reading June 19, 2009 at 2:05 am Leave a comment

Life a fundamental consequence of organic chemistry

He has solved a problem that for 20 years has thwarted researchers trying to understand the origin of life — how the building blocks of RNA, called nucleotides, could have spontaneously assembled themselves in the conditions of the primitive earth. The discovery, if correct, should set researchers on the right track to solving many other mysteries about the origin of life. It will also mean that for the first time a plausible explanation exists for how an information-carrying biological molecule could have emerged through natural processes from chemicals on the primitive earth

Scientists have long suspected that the first forms of life carried their biological information not in DNA but in RNA, its close chemical cousin. Though DNA is better known because of its storage of genetic information, RNA performs many of the trickiest operations in living cells. RNA seems to have delegated the chore of data storage to the chemically more stable DNA eons ago. If the first forms of life were based on RNA, then the issue is to explain how the first RNA molecules were formed

The spontaneous appearance of such nucleotides on the primitive earth “would have been a near miracle,” two leading researchers, Gerald Joyce and Leslie Orgel, wrote in 1999. Others were so despairing that they believed some other molecule must have preceded RNA and started looking for a pre-RNA world.

The miracle seems now to have been explained.

“My assumption is that we are here on this planet as a fundamental consequence of organic chemistry,” Dr. Sutherland said. “So it must be chemistry that wants to work.”

via Chemist Shows How RNA Can Be the Starting Point for Life – NYTimes.com.

May 13, 2009 at 5:53 pm Leave a comment

Game Theory and Genetics coalesce

Two of my favorite topics, Game Theory and Genetics, come together in the modern age

Continue Reading March 25, 2009 at 8:56 pm Leave a comment


Pages

Twitter Updates

Error: Twitter did not respond. Please wait a few minutes and refresh this page.

RSS Democracy Now!

  • Keeanga-Yamahtta Taylor on "How We Get Free: Black Feminism and the Combahee River Collective"
    We speak with Keeanga-Yamahtta Taylor about the new collection of essays she edited that is titled "How We Get Free: Black Feminism and the Combahee River Collective." Taylor is an assistant professor of African American studies at Princeton University and the author of "From #BlackLivesMatter to Black Liberation."
    mail@democracynow.org (Democracy Now!)
  • Keeanga-Yamahtta Taylor: Democratic Party Faces Reckoning for Purging Sanders Supporters
    As President Trump completes his first year in office, activists in cities across the country will hold mass protests Saturday on the first anniversary of the historic Women's March. This comes as a slew of lawmakers have joined members of the Black Congressional Caucus in backing a resolution to censure President Trump over his racist comments in which […]
    mail@democracynow.org (Democracy Now!)
  • As Shutdown Looms over Immigration, Trump's Rejection of Refugees Could Have Global Domino Effect
    As Senate Democrats say they'll vote against a government spending bill that fails to protect DACA recipients, setting up a potential government shutdown, we look at the worldwide refugee crisis. The United Nations Refugee Agency reports the number of displaced people worldwide has hit a record high, with more than 65 million people forcibly displaced f […]
    mail@democracynow.org (Democracy Now!)
  • Headlines for January 19, 2018
    Senate to Vote on Stopgap Spending Bill, with Gov't Shutdown Looming, Immigrant Activists Flood Capitol Hill, Demanding a "Clean DREAM Act", California Immigrants Left Terrified as ICE Plans Raids, Colorado: Marchers to Lend Support to Immigrant Activist Sandra Lopez, Trump Administration to Deny Temporary Work Visas to Haitians, Haitians Prot […]
    mail@democracynow.org (Democracy Now!)
  • Trump Biographer on the President's Cognitive Decline & Whether He Will Be Impeached
    White House doctor Ronny Jackson said Tuesday President Trump is in good health and displayed a normal score on a cognitive exam, amid mounting questions about President Trump's mental health. But on Wednesday, medical experts said that the results from Trump's recent physical exam show the president has high levels of cholesterol and is at serious […]
    mail@democracynow.org (Democracy Now!)
  • How Trump's Deregulatory Push Is Harming Workers, Muzzling EPA Scientists and Unleashing Pollution
    As President Trump's own chief of staff, John Kelly, calls his boss "uninformed," we will look at how Trump is transforming the nation by slashing taxes on the rich, gutting the nation's regulatory system and muzzling climate scientists. We speak to David Cay Johnston, author of "It's Even Worse Than You Think: What the Trump Ad […]
    mail@democracynow.org (Democracy Now!)
  • Trump Biographer: Trump is the "Most Racist" President in At Least 100 Years
    On Capitol Hill, Democrats are preparing a bill that would formally censure Donald Trump over racist comments in which the president reportedly called African nations, El Salvador and Haiti "shithole countries." The effort is being led by New York Congressmember Jerrold Nadler and Representative Cedric Richmond, chair of the Congressional Black Cau […]
    mail@democracynow.org (Democracy Now!)
  • "It's Even Worse Than You Think": David Cay Johnston on Trump's First Year in Office
    Uninformed. That was the word White House Chief of Staff John Kelly used to describe his boss, President Trump, on Thursday. According to The Washington Post, Kelly told members of the Congressional Hispanic Caucus that some of Trump's hardline immigration policies—including his call to build a wall along the entire southern border— were "uninforme […]
    mail@democracynow.org (Democracy Now!)
  • David Cay Johnston: Trump is Determined to Provoke War to Draw Focus from Racist & Erratic Behavior
    The New York Times reports that the Pentagon is proposing widening the permissible use of nuclear weapons to include responding to cyberattacks and other non-nuclear attacks to U.S. infrastructure. The Pentagon has already outlined this expanded nuclear strategy in a draft document sent to President Trump for approval. It comes amid a series of moves by the […]
    mail@democracynow.org (Democracy Now!)
  • Headlines for January 18, 2018
    Government Shutdown Looms Amid Congressional Fight over DREAMers, John Kelly Says Candidate Trump Was "Uninformed" on Immigration, Immigrant Rights Group Says Border Guards Destroy Humanitarian Aid, Detroit, Michigan: Immigrant Activist Jorge Garcia Deported by ICE, Immigrant Activist Ravi Ragbir Returned to New York in ICE Custody, Ohio Immigrant […]
    mail@democracynow.org (Democracy Now!)

RSS Science Blogs

  • Comments of the Week #164: From black holes to moons with moons of their own [Starts With A Bang]
    “There are two types of people who will tell you that you cannot make a difference in this world: those who are afraid to try and those who are afraid you will succeed.” -Ray Goforth We’ve really investigated some amazing scientific stories this week here at Starts With A Bang! There’s always so much to consider, think…
    Ethan
  • The Oldest Human Bones, Jebel Irhoud, Morocco [Greg Laden's Blog]
    You’ve heard to story. I’m here to give you a little context. But in case you haven’t heard the story, this is from the press release which is, so far, the only information generally available: New finds of fossils and stone tools from the archaeological site of Jebel Irhoud, Morocco, push back the origins of…
    Greg Laden
  • Comments of the Week #163: from the edge of the Universe to the Milky Way’s demise [Starts With A Bang]
    “Humanity has won its battle. Liberty now has a country.” -Marquis de Lafayette There’s so much science to talk about in any given week here at Starts With A Bang! It’s sometimes hard to choose, but one particular topic stole the show this past week: black holes. Sure, we took on other things, too, but we didn’t even…
    Ethan
  • Various comments and current news [Greg Laden's Blog]
    For some reason, Facebook is not posting reliably and I will not abide writing paragraphs that the Internet sucks into oblivion! So, I have a few thoughts I’ll put here and try to link to. Rebecca Otto for Governor Let’s start with Rebecca Otto, who just gave a great talk at the DFL (that’s what…
    Greg Laden
  • Swedish Academia Is No Meritocracy [Aardvarchaeology]
    After almost 14 mostly dismal years on the academic job market, I find it a consolation to read an opinion piece in Times Higher Education under the headline “Swedish Academia Is No Meritocracy“. In my experience this is also true for Denmark, Norway and Finland. In Norway, for instance, the referee board that evaluates job…
    Martin R
  • We’ll always have Paris [Greg Laden's Blog]
    If you are upset about Trump and upset about Trump pulling the US out of the Paris agreement, please let me help you get through the day. Trump announcing that the US is pulling out of Paris does not mean the end of Paris, the end of action on climate change, or much else about…
    Greg Laden
  • Improving endurance exercise [Life Lines]
    We all know that aerobic exercise is good for us because it helps improve muscle function and our ability to move well. For fish, aerobic exercise helps animals escape predators, catch prey as well as improve reproduction success. When we exercise, our muscles adapt by altering the metabolism of energy, the way calcium is handled as…
    Dr. Dolittle
  • Comments of the Week #162: from singularity evaporation to the loss of Earth’s helium [Starts With A Bang]
    “The ability to listen and learn is key to mastering the art of communication. If you don’t use your verbal skills and networking, it will disappear rapidly.” -Rick Pitino It’s been a week full of amazing and controversial stories about the Universe here at Starts With A Bang! Did you catch the fantastic live event on Wednesday at…
    Ethan
  • Using fish skin to treat burn victims [Life Lines]
    Researchers in Brazil are testing a new way to treat burn victims. They have found that tilapia skin is rich in collagen which helps the damaged skin heal better than standard wound dressings and eliminates the need to wait for donor tissue. Check out these videos from YouTube describing this radical new idea in burn…
    Dr. Dolittle
  • Seven Stories Of Science Gone Wrong [Greg Laden's Blog]
    What, with all the attacks on science and scientist these days, we may not want to be focusing on those times when science goes off the rails and makes a huge mess of things. But, science at its best and scientists at their best, will never shy away from such things. Dr. Paul Offit just…
    Greg Laden

RSS AZ Daily Star

  • An error has occurred; the feed is probably down. Try again later.