Friday, December 30, 2011

Bret Webster - Photo Researchers Photographer!

  In the news:
by John Hollenhorst
KSL.com » Utah


 On our website: Bret Webster Collection

Landscape Arch 
and the Milky Way galaxy 
in Arches National Park, Utah.
Credit: Bret Webster / Photo Researchers, Inc.



Arches National Park and the La Sal Mountains, Utah.
Credit: Bret Webster / Photo Researchers, Inc.

Thursday, December 29, 2011

In the news:
"Species spotted at deep-sea vent"
BBC News online
December 28, 2011









Giant tube worms (Riftia pachyptila) on a hydrothermal vent. These animals inhabit a tube (white), from which they extend feathery red plumes. The plumes take in chemicals and release waste. The chemicals are passed to colonies of symbiotic bacteria that live inside the worm, which convert the chemicals into nutrients on which the worm feeds. The worms are usually found near hydrothermal vents (black smokers), and are extremely resistant to the heat associated with the vents. Photographed deep in the Pacific Ocean.
Credit: C. Van Dover / OAR / NURP / College of William and Mary / NOAA / Photo Researchers, Inc.

Wednesday, December 28, 2011

Tuesday, December 27, 2011

Prosopagnosia - Face Blindness

In the news:
"Have We Met? Tracing Face Blindness to Its Roots"
by Karen Barrow
NYTimes online
December 26, 2011










BQ9621
Portrait of an Australian girl with freckles.

Credit: Christine Osborne / Photo Researchers, Inc.

Friday, December 23, 2011

The Sixth Toe

In the news:
by Rebecca Morelle
BBC News online
December 22, 2011

2X9093
Front feet and tip of trunk of an Asian Elephant (Elephas maximus).

Credit:
Kenneth W. Fink / Photo Researchers, Inc.

Wednesday, December 21, 2011

Terrorized by the Flu?

 In the news:
by Denise Grady and William J. Broad
New York Times online
December 20, 2011







SK4651
Avian influenza virus particles. Colored transmission electron micrograph (TEM) of a H5 strain of influenza virus type A. All five H5 strains (H5N1, H5N2, H5N3, H5N8 and H5N9) cause bird flu. The particles (red) have an enveloped outer coat, or capsid. The capsid contains hemagglutinin (H) and neuraminidase (N) proteins, which allow the particles to enter the host's cells and reproduce.  Magnification: x53,000 when printed 10 centimeters wide.
Credit: Hazel Appleton, Health Protection Agency Centre for Infections / Photo Researchers, Inc.

Tuesday, December 20, 2011

Change at the Core

In the news: 
BBC News online
December 20, 2011





Earth layers, computer artwork. The external layer shows the Earth's surface topography and atmosphere, including land, water and clouds. This surface layer extends downwards for around 35 kilometers as the rocky crust. The mantle (red) is a viscous layer of rocks under high pressures and temperatures, extending downwards to a depth of around 2890 kilometers. The outer core (yellow) is a liquid layer of iron and nickel, around 2260 kilometers thick. The inner core (top) is a liquid sphere of a iron-nickel alloy, with a radius of 1220 kilometers.
Credit: Gary Hincks / Photo Researchers, Inc.

Monday, December 19, 2011

Arthritis: Hope in Clostridium botulinum

BT7569
Ribbon model of botulinum neurotoxin, a protein produced by the bacterium Clostridium botulinum that is considered the most powerful neurotoxin ever discovered.
Credit: Carol and Mike Werner / Photo Researchers, Inc.
In the news:
The Economist
December 10, 2011 

Friday, December 16, 2011

Norovirus Vaccine

In the news:
By Nicholas Bakalar
New York Times online
December 12, 2011


SK4901
Norovirus particles. Colored transmission electron micrograph (TEM) of norovirus particles (purple). Norovirus is a genus of RNA (ribonucleic acid) viruses (of the family Caliciviridae), which cause about half of all gastroenteritis cases around the world. The disease is characterized by nausea, vomiting, diarrhea and abdominal pain. The diarrhea results in fluid loss and dehydration, which may become life-threatening in the young, the elderly, and the immunocompromised if not treated promptly.


Credit: Hazel Appleton, Health Protection Agency Centre for Infections / Photo Researchers, Inc.

Thursday, December 15, 2011

A Hairy Bed Bug Situation

In the news:
BBC News online
December 14, 2011



 
Colored scanning electron micrograph (SEM) of bed bugs mating. Bed bugs (Cimex lectularius) are blood sucking insects, so called because they live in the beds of humans. The male (above) punctures the body wall of one of the female's abdominal segments and deposits his sperm in a sac. This is called traumatic insemination. 

Magnification: x22 at 6x4.5 inches. 
Credit: Andrew Syred / Photo Researchers, Inc.

Wednesday, December 14, 2011

On the Origin of the Theory of Evolution

In the news:
By Philip Ball
nature.com
December 12, 2011


Charles Robert Darwin (1809-1882) was an English naturalist. He established that all species of life have descended over time from common ancestry, and proposed the scientific theory that this branching pattern of evolution resulted from a process that he called natural selection. His seminal works: On the Origin of Species (1859) his theory with compelling evidence for evolution. The Descent of Man (1871) he examined human evolution and sexual selection and The Expression of the Emotions in Man and Animals (1872) one of the most enduring contributions from 19th century psychology.


Dr. Alfred Russel Wallace, O.M., F.R.S. (1823 - 1913), a British naturalist who independently proposed his own theory of evolution due to natural selection, prompting Charles Darwin to publish his as well.
Credit: Biophoto Associates / Photo Researchers, Inc.






Tuesday, December 13, 2011

DisCERNing the Higgs boson

In the news:
By Paul Rincon
BBC News online
December 13, 2011

BH4209
View of the Central tracking Chamber of the Collider Detector at Fermilab (CDF). This device saw the top quark. CDF is an experiment at Fermilab, which is currently home to the world's most powerful particle accelerator called the Tevatron. The Tevatron accelerates protons and antiprotons close to the speed of light, and then makes them collide head-on inside the CDF detector. The CDF detector is used to study the products of such collisions; by doing this we try to reconstruct what happened in the collision and ultimately try to figure out how matter is put together and what forces nature uses to create the world around us.
Credit: Fermi National Accelerator Laboratory / Photo Researchers, Inc.

Monday, December 12, 2011

Hemophilia B

In the news: 
"Treatment for Blood Disease is Gene Therapy Landmark"
By Nicholas Wade
New York Times
December 10, 2011
Hemophiliac bleeding into the elbow joint (hemarthrosis). Hemophilia is a sex-linked hereditary disease that predominantly affects males. It causes a delay in blood clotting and a resulting difficulty in controlling hemorrhage.
Credit: Biophoto Associates / Photo Researchers, Inc.

Thursday, December 8, 2011

Anomalocaris - Cambrian Predators

BA2292

Reconstruction of the problematic animal, Anomalocaris canadensis, from the Middle Cambrian Burgess Shale of British Columbia. By far the largest animal in the Burgess Shale fauna this creature of unknown affinity reached lengths of half a meter. Anomalocarids have been discovered in China, Greenland, Australia, and North America.

Credit: Chase Studio / Photo Researchers, Inc.



In the news:
By Matt Kaplan
nature.com
December 7, 2011




Reconstruction of the Anomalocaris sp., the Middle Cambrian Chengjiang fauna of China. Although similar in most respects to Anomalocaris canadensis to the Burgess Shale, the Chinese specimens show two long spines projecting from the tail. It is possible that the spines simply have not yet been recognized in the Burgess Shale specimens. Anomalocaris has experienced a long history of misinterpreted isolated parts. The front claws were originally described as shrimp, the circular mouth plate as a jellyfish, and the body as yet another animal until more complete specimens united the parts. Probably a fearsome predator, Anomalocaris was a half meter in length.
 
Credit: Chase Studio / Photo Researchers, Inc.
 

Wednesday, December 7, 2011

The Motion of Nature

VA1046 - Chameleon Hunting Insect (YouTube/PhotoResearchers)

Experience nature on our website in a new and moving way!
 A chameleon flicks its tongue out to capture prey. A cloud of starlings undulates, fluidly forming shapes in the sky. Still pictures can't always capture the many wondrous processes of nature. Nature Source introduces video to enhance its extensive collection of nature and wildlife photography.


©Wave Royalty Free / Photo Researchers, Inc. 

Tuesday, December 6, 2011

Welcome to Planet Earth-Like!

In the news:
"Kepler 22-b: Earth-like Planet Confirmed"
BBC News online
December 5, 2011


SN7282
Earth-like extrasolar planet, computer artwork. This planet has oceans, and an atmosphere that can support clouds. It also has a small irregularly-shaped moon. Earth-like planets capable of supporting life are found only in a star's habitable zone, a region around a star where the surface temperature of a planet is suitable for liquid water.
Credit: Mehau Kulyk / Photo Researchers, Inc.

Monday, December 5, 2011

Happy Birthday, Heisenberg - For Certain.

In the news:
By Rebecca Boyle
Popular Science online
November 30, 2011





German physicist Werner Heisenberg (1901-1976), one of the founders of quantum mechanics and head of Germany's nuclear energy program. His role in this capacity is subject to much debate, with some believing he covertly tried to thwart Germany's program to develop nuclear weapons. He discovered the Heisenberg uncertainty principle, which is now one of the central principles of modern physics. 

Friday, December 2, 2011

Pituitary Gland In A Dish

In The News:
by Tina Hesman Saey
ScienceNews online
November 9, 2011





2J9487
Human pituitary gland. The pituitary secretes hormones regulating homeostasis, including tropic hormones that stimulate other endocrine glands.
Credit: Southern Illinois University / Photo Researchers, Inc.

Thursday, December 1, 2011

30 Years Ago Today

In the news:
The Telegraph online
December 1, 2011

Illustration depicting the stages involved when a HIV virion infects a T Cell. From fusing with the T Cell to releasing its capsid into the host T-cells cytoplasm.
Credit: 3D4Medical / Photo Researchers, Inc.