Perception of Shades of Gray – Perceptual Challenges for the Brain

in medicine, biology

Scientists have now provided new insight into how our brain perceives shades of gray. We are able to see in the starlight or in the bright sun, though the difference in illumination may be in multi-million folds.  The new research report explains how our brains deliver a perception of objects that is stable over this huge range of light that gets to our eyes.

Women Take Pill, Men Get Cancer - Oral Contraceptive and Prostate Cancer

in environment, medicine

When women take oral contraceptive, why should men get prostate cancer? The new controversial paper is published in BMJ open access journal linking oral contraceptive use in the population with prostate cancer. 

Today's teens will die younger of heart disease - Adolescents unhealthiest in US history

in medicine

High blood sugar, obesity, poor diet, smoking, little exercise make adolescents unhealthiest in US history. A new study that takes a complete snapshot of adolescent cardiovascular health in the United States reveals a dismal picture of teens who are likely to die of heart disease at a younger age than adults do today, reports Northwestern Medicine research.

Malaria drug resistance in humans and mosquitoes

in medicine, biology

Researchers have detected contrasting patterns of drug resistance in malaria-causing parasites taken from both humans and mosquitoes in rural Zambia. Parasites found in human blood samples showed a high prevalence for pyrimethamine-resistance, which was consistent with the class of drugs widely used to treat malaria in the region.

Foldit Gamers Strike Again - Creative Power Of Foldit Gamers Unraveled

in technology, biology

Researchers now reveal the creative power of Foldit players' strategies and compare them to the best-known scientist-developed methods. This report follows a recent paper on solving the crystal structure of a monomeric retroviral protease by protein folding game players.   

Why do neurons die in Parkinson's disease?

in medicine, biology

A new study shows that genetic mutations causing a hereditary form of Parkinson's disease cause a cellular organalle, mitochondria, to run amok inside the cell, leaving the cell without a brake to stop them.

Janus Triad - Janus particles inspired by an ancient Roman god

in technology

The two-faced Roman god Janus has inspired a class of unique particles that possess two different sides or surfaces of different chemistry or polarity. Researchers now report the synthesis of three different Janus topologies from one single specific triblock copolymer.

How Headache Tree Causes Cluster Headache and Migraine

in medicine, biology

Researchers have now identified the mechanism by which the plant California laurel, also known as headache tree, causes headache and migraine. They discovered that headache is caused when a bioactive compound released from the leaves of this plant triggers a cascade of chemical events in trigeminal nerves around head arteries.