Life Sciences and Chemistry

Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.

Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.

When it comes to sperm competition, size can matter — it’s the female who holds the aces

Syracuse University researchers pick up where Darwin left off: Groundbreaking study to be published in the Nov. 8 issue of Science

When it comes to mating and determining whose sperm reaches the elusive egg, females control both the playing field and the rules of the game, according to a new study on male sperm competition vs. female choice to be published in the Nov. 8 issue of Science.
“Our study demonstrates, unambiguously, the active role females play in determining the condi

Lotus effect shakes off dirt

The lotus – a flowering wetland plant native to Asia – may not at first glance be of interest to the nanotechnologist. But researchers at German chemical company BASF are developing a spray-on coating that mimics the way lotus leaves repel water droplets and particles of dirt. The story is reported on nanotechweb.org, the Institute of Physics’ global portal for nanotechnology.

The leaves of Lotus plants are coated with minute wax crystals around 1 nm in diameter which repel water, droplets f

Mole-rat Methuselahs push evolutionary theory of aging

Virtually hairless, venerably wrinkled and very nearly blind, naked mole-rats — those homely rodents from underground Africa — remind some zoo-goers of little old men.

The resemblance is more than coincidence. They really are really old males — and females, too — biologists report in an article scheduled for November publication in the Journal of Zoology (Vol. 258, Part 3). Many naked mole-rats ( Heterocephalus glaber ) in laboratory colonies in the United States and South A

Genes, neurons, and the Internet found to have some identical organizing principles

How do 30,000 genes in our DNA work together to form a large part of who we are? How do one hundred billion neurons operate in our brain? The huge number of factors involved makes such complex networks hard to crack. Now, a study published in the October 25 issue of Science uncovers a strategy for finding the organizing principles of virtually any network – from neural networks to ecological food webs or the Internet.

A team headed by Dr. Uri Alon, of the Weizmann Institute of Science’s Mo

New research sheds light on bacterial firework display

Scientists at the Institute for Animal Health have revealed how a tropical bacterium is able invade cells, and ultimately trigger its escape using a homemade rocket. Their work is published in the November issue of Molecular Microbiology.

A group of scientists led by Dr Ed Galyov and Dr Mark Stevens have discovered that Burkholderia pseudomallei , which causes a disease called melioidosis, uses a special set of `effector` proteins to invade host cells. Their discovery has revealed surp

Researchers identify decision-making area of the brain

New research from investigators in the Centre for Neuroscience Studies at Queen’s University and the Centre for Brain and Mind at The University of Western Ontario has provided the first neuro-imaging evidence that the brain’s frontal lobes play a critical role in planning and choosing actions.

Their study is published today in the journal Nature Neuroscience.

The research team has found that a small region in the frontal lobe of the human brain is selectively activated when

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