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Showing posts from April, 2013

Fertilizer Grows Plants, and Fires

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In the news: "Fertilizers Meet Fire, With Disastrous Consequences" by Henry Fountain New York Times April 19, 2013

Ammonium Nitrate - 2K4241 An ammonium nitrate explosion. Ammonium nitrate is a common oxidizing agent in explosive devices. Credit: Charles D. Winters / Science Source

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The Ven of Aging and Illness

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In the news: "For the Elderly, DiseasesThat Overlap" Hannah Fairfield and Matthew Bloch  New York Times April 15, 2013

BG3189 Old man walks on path through urban park. England Credit: Peter Bowater / Science Source

Shrapnel from Bombings: Leaves Tragedy and Clues

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In the news: "Shrapnel removed from Boston bombing victims yields clues" by Noam N. Levey and Alan Zarembo Los Angeles Times April 16, 2013 DA9312 Saggital x-ray of the skull reveals a bomb fragment in a patient's skull. Credit: BSIP / Science Source Science Source® Images is a registered trademark of Photo Researchers, Inc.

Beer: Buzzing with Flavor

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In the news: "Beer Tastes Intoxicating" by Sabrina Richards The Scientist April 15, 2013 BT2725 Illustration of the behavior of neurotransmitters in a synapse between two neurons. Neurotransmitters are endogenous chemicals that transmit signals from a neuron to a target cell across a synapse. In response to an electrical signal in the transmitting neuron, vesicles containing neurotransmitters fuse with the cell wall allowing the neurotransmitters to enter the synapse. They move toward the receiving neuron and attach themselves to receptors (green), relaying the message. Extra neurotransmitters migrate back to the transmitting cell via reuptake transporters. Credit: Carol and Mike Werner / Science Source

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Worth the Postage - Francis Crick's Letter

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In the news: "Francis Crick's DNA letter to his son sells at auction for a record $6 million" by Alan Boyle NBC News April 10, 2013 P4437 : DNA double helix | Science Source Beta DNA. Computer representation of a segment of the beta form of the molecule Deoxyribonucleic Acid (DNA). This molecule contains all inherited instructions necessary for the development of a living organism. Atoms are shown as spheres. The DNA molecule is composed of two strands of atoms twisted into a helical shape. Each strand consists of an outer sugar-phosphate backbone (gold) from which the bases project inwardly (silver). The bases are thus paired in a complementary fashion like rungs on a ladder, making up the genetic code. This code is divided into segments called genes. DNA is also the vehicle of genetic inheritance between different generations. Credit: Kenneth Eward / BioGrafx / Science Source
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Can You Hear Me Now? The Real Sounds of Hearing Loss

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In the news: "The Real Sounds of Hearing Loss" by Audrey Carlsen NPR April 6, 2013 BL2404
Conceptual image representing frequency. Sound byte on a grid moving through an ear. Credit: Mike Agliolo / Science Source

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What Do Women Want? Men Still Unsure.

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In the news: "Bigger not always better for penis size" by Regina Nuzzo nature.com April 8, 2013 BF9389 This anonymous Persian anatomical illustration (Iran or Pakistan, ca. 1680-1750) depicts a man with his abdomen and chest opened to reveal the internal organs. In his right hand, he holds a second set of genitalia, and there is a sketch of the liver and gallbladder in the upper left corner. The artistic conventions employed in the production of this illustration indicate Western India as a place of production. The 16th- to 18th-century European convention of picturing partially dissected bodies as if they were alive, offering up parts of their own body for further inspection, can be seen here transferred to the Indian subcontinent. The anatomy of the exposed organs reflects indigenous Indian concepts as well as some medieval Galenic anatomy. This is one of six anonymous anatomical drawings on folia 554-559 at the end of a volume containing Tibb al-Akbar (Akbar&…

Saccharomyces cerevisiae - Thanks for the Beer

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In the news:  "Craft-Beer-Crazy Oregon Poised to Name Official State Microbe" by Nancy Shute NPR April 5, 2013

2Y3096
A polarized light micrograph of living Saccharomyces cerevisiae, a species of budding yeast used in baking and brewing. Magnification: 400x. Differential Interference Contrast microscopy (DIC), also known as Nomarski Interference Contrast (NIC) or Nomarski microscopy, an optical microscopy illumination technique used to enhance contrast. © Michael Abbey / Science Source








3E5126 Yeast (Saccharomyces cerevisiae). © Michael Abbey / Science Source







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The Brain - The New Fronteir

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In the news: "Obama's Plan to Explore the Brain: A 'Most Audacious Project'" by Jon Hamilton  NPR April 2, 2013 SD3731 Brain pathways. Coloured 3-dimensional magnetic resonance imaging (MRI) scan of the white matter pathways of the brain, side view. White matter is composed of myelin-coated nerve cell fibres that carry information between nerve cells in the cerebrum of the brain (top half of image) and the brain stem (bottom centre). This image was created by an MRI scanner sensitised to the movement of water around the brain. Blue represents neural pathways from the top to the bottom of the brain, green represents pathways from the front (left) to the back (right), and red shows pathways between the right and left hemispheres of the brain. Credit: TOM BARRICK, CHRIS CLARK, SGHMS / Science Source

Here Be Dragons!

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In the News: "Nature's Drone, Pretty and Deadly" by Natalie Angier New York Times
April 2, 2013 BJ9924
Emperor Dragonfly (Anax imperator) male in flight.
©Stephen Dalton/ Science Source

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Living Fossils Obviously Not Fossilized

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In the news: "The Falsity of Living Fossils" by Ed Yong The Scientist April 2, 2013 FB0679 Three shield shrimp (Triops australiensis) in a pool, Australia. Credit: ANT Photo Library / Science Source


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