13 posts tagged with biology and cells.
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Are you alive? If so, can you define what that means?

Why Life Does Not Really Exist
posted by Brandon Blatcher on Dec 7, 2013 - 85 comments

Intelligence Tests

Is Psychometric g a Myth? - "As an online discussion about IQ or general intelligence grows longer, the probability of someone linking to statistician Cosma Shalizi's essay g, a Statistical Myth approaches 1. Usually the link is accompanied by an assertion to the effect that Shalizi offers a definitive refutation of the concept of general mental ability, or psychometric g." [more inside]
posted by kliuless on Apr 11, 2013 - 113 comments

Let's try to avoid creating something with "molecular acid for blood," shall we?

Dmitar Sasselov is an astrophysicist, Director of the Origins of Life Initiative at Harvard and a co-investigator of the Kepler space telescope project to find Earth-like planets around the Cygnus constellation and discover extraterrestrial life. But no matter how successful the Kepler project may be, it still won't answer the most fundamental questions of astrobiology: How diverse is life in the universe? If alien life exists, will it have Earthly DNA and proteins? Or will it run on something else? So Dr. Sasselov has decided to collaborate with two synthetic biologists, asking them to create a life form based on mirror-image versions of what we know as the essential building blocks of living things on Earth. [more inside]
posted by zarq on Dec 14, 2010 - 13 comments

An Artificial Ovary

Using a 3-D petri dish, Researchers at Brown University and Women & Infants Hospital of Rhode Island have built a completely functional artificial human ovary that will allow doctors to harvest immature human egg cells (oocytes) and grow them into mature, ready-to-be-fertilized human eggs outside the body. (In vitro) The advance could eventually help preserve fertility for women facing chemotherapy or other medical treatments that may be destructive to ovarian folliculogenesis. Press Release. Article link. (paywall) [more inside]
posted by zarq on Sep 29, 2010 - 24 comments

DNA Not The Same In Every Cell Of Body

DNA Not The Same In Every Cell Of Body. "...calls into question one of the most basic assumptions of human genetics: that when it comes to DNA, every cell in the body is essentially identical to every other cell... if it turns out that blood and tissue cells do not match genetically, these ambitious and expensive genome-wide association studies may prove to have been essentially flawed from the outset"
posted by GuyZero on Jul 16, 2009 - 49 comments

Swamp Thing, I think I love you

Slime Molds Show Surprising Degree of Intelligence - A creature with no brain can learn from and even anticipate events. (via)
posted by kliuless on Apr 22, 2009 - 59 comments

Molecular Movies

Molecular Movies features cell and molecular animations, along with animation tutorials. [more inside]
posted by Korou on Jan 30, 2009 - 5 comments

Shedding Light on Life

Light makes a comeback. “New technologies — more sophisticated imaging techniques, fluorescent molecules that act as beacons of light in the cell, and the computing power to gather and stitch together multiple images and create videos from high-powered microscopes — make it possible to harness one of light’s key advantages: gentleness. Unlike higher-resolution techniques, light microscopes can image biological structures without killing them or chemically fixing them. At Harvard, the resurgence of light microscopy is making it possible to see structures and events that have never before been seen in the context of living cells and organisms.” Also don't miss the video samples of “in vivo” imagining.
posted by Frankieist on Apr 19, 2008 - 12 comments

Children's Hospital Boston

Interactive Features at the Children's Hospital Boston's Website. [Via Mind Hacks.]
posted by homunculus on Dec 17, 2007 - 4 comments

Each of us a cell of awareness

The mitochondrion, the Krebs cycle and other cell biology animations. Flash.
posted by Wolfdog on Apr 17, 2005 - 13 comments

science

View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons.
posted by semmi on Sep 20, 2004 - 18 comments

No stem cell research

Thou shalt not make scientific progress. "Medical research is poised to make a quantum leap that will benefit sufferers from Alzheimer's, Parkinson's, muscular dystrophy, diabetes and other diseases. But George W. Bush's religious convictions stand in its way."
posted by homunculus on Mar 24, 2004 - 45 comments

Scientists in the USA have discovered [NYTimes] a new cell in the eye responsible for resetting the biological clock. Its being called "heretical".. Not every day, Dr. Provencio said, do scientists find a new body function.
posted by stbalbach on Feb 8, 2002 - 3 comments

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