News Articles

Researchers at BRIC, University of Copenhagen, have identified a new gene family (UTX-JMJD3) essential for embryonic development. The family controls the expression of genes crucial for stem cell maintenance and differentiation, and the results may contribute significantly to the understanding of the development of cancer.
All organisms consist of a number of different cell types each producing different proteins. The nerve cells produce proteins necessary for the nerve cell function; the muscle cells proteins necessary for the muscle function and so on. All these specialized cells originate from the same cell type – the embryonic stem cells.

Neuroscientists at University College London and Ghent University have found the brain circuit involved in thinking twice and checking impulsive behaviour. The duo discovered that an area in the fronto-median cortex of the brain is activated when you begin to think ‘I’m not going to go through with this’ and stop yourself doing what you were about to do.
According to the study, published in the ‘Journal of Neuroscience’ today, this specific brain network is involved in self-control and checks and limits our desired actions.

A Swedish researcher says astrococytes, the most abundant cell type in the brain, can lead to new treatment for stroke victims.
Stroke is the result of an infarction, or bleeding, within the brain, and it may lead to impaired movement, impaired sensation, and difficulties in cognitive function and speech. Approximately 30,000 people are affected by stroke each year in Sweden, and it is the most common cause of long-term dependence on care.
"Researchers all over the world are intensively searching for new treatments. One interesting possibility is that of activating stem cells in the damaged brain such that the brain can be repaired and regain its function", says stem cell researcher Jonas Faijerson.

300 years after its discovery, the crystal structure of mercury fulminate has been determined.
Though well known by alchemists for its explosive capability and later used as a detonator for dynamite, mercury fulminate's crystal structure has been unknown until now. As Wolfgang Beck, Thomas Klapötke and their team report in the journal ZAAC – Journal of Inorganic and General Chemistry, the orthorhombic crystals consist of separate, nearly linear Hg(CNO)2 molecules.
The alchemists of the seventeenth century were already aware that mixtures of “spiritus vini” (ethanol) and mercury in “aqua fortis” (nitric acid) made for an explosive brew.

A situation in which wages increase 2.3% and prices increase 3.1% is equivalent to a situation in which wages fall by 0.8% at constant prices. Though the two scenarios are equivalent in real terms there are people who perceive these situations differently. These people are said to be prone to 'money illusion.'
It has been commonly thought that the impact of irrational behavior is limited in markets because “smart agents” can take advantage of irrational traders.

Female rhesus monkeys use special vocalizations while interacting with infants, the way human adults use motherese, or “baby talk,” to engage babies’ attention, new research at the University of Chicago shows.
“Motherese is a high pitched and musical form of speech, which may be biological in origin,” said Dario Maestripieri, Associate Professor in Comparative Human Development at the University.

Huntington's is an inherited degenerative neurological disease that affects up to 8 people out of every 100,000 in Western countries. Any person whose parent has Huntington's has a 50-50 chance of inheriting the faulty gene that causes it and everyone with the defective gene will, at some point, develop the disease.
It is characterized by a loss of neurons in certain regions of the brain and progressively affects a sufferer’s cognition, personality and motor skills. In its later stages, sufferers almost certainly require continual nursing care.

Scientists have shown in literally thousands of studies that the p53 gene deserves its reputation as “the guardian of the genome.” It calls to action an army of other genes in the setting of varied cell stresses, permitting repair of damaged DNA or promoting cell death when the cell damage is too great. A key net effect of p53’s action is to prevent development of cancerous cells.
Now, University of Michigan Medical School scientists provide the most thorough evidence yet that p53 also regulates a trio of genes from the realm of so-called “junk” genes — the roughly 97 percent of a cell’s genetic material whose function is only beginning to be understood.

One of the strangest and most endangered birds in the world, the kakapo, is being brought back from the brink of extinction with the help of scientists from the University of Glasgow.
The largest of all parrot species, flightless, nocturnal and plant-eating, the kakapo used to be found all over New Zealand. But ecological changes, habitat clearance and the introduction of predatory mammals combined to cause a catastrophic decline in numbers to only 51 in 1995.
Another factor in their near extinction is that kakapo breed infrequently. This is because they rear their young on the fruits of native trees. These trees - pink pine and rimu – only fruit every 2-6 years and kakapo only breed on those occasions.

A new interpretation of data from NASA’s Viking landers indicates that 0.1% of the Martian soil tested could have a biological origin.
Dr Joop Houtkooper of the University of Giessen, Germany, believes that the subfreezing, arid Martian surface could be home to organisms whose cells are filled with a mixture of hydrogen peroxide and water. Dr Houtkooper described how he has used data from the Gas Exchange (GEx) experiment, carried by NASA’s Viking landers, to estimate the biomass in the Martian soil.

Viking 2 lander image looking back across the craft. Dark boulders are prominent against the reddish soil. The landing site, Utopia Plantia, is a region of fractured plains.

Observations of solar flares by spacecraft at Mars, Venus and the Earth show that eruptions on the far side of the Sun may affect our “space weather” back on Earth.
In December 2006, a series of solar flares produced in a single active region were observed from three different points, each approximately 120 degrees apart.

Opponents of gay marriage in the United States state that nuclear families have always been the standard household form. Turns out this may not be true. While gay marriage itself may not have happened in medieval times there is evidence that homosexual civil unions did and that could lend important historical insight to the debate.
Allan A.