Polymer solar cells don't have the high efficiencies of the silicon kind yet, which isn't saying much, but they can be printed in roll-to-roll processes and at very high speeds so in time the technology could be very cost-effective.  Polymer solar cells are also flexible and lightweight so they could be used on vehicles or clothing or to be incorporated in the design of objects.

Researchers from the Eindhoven University of Technology and the University of Ulm have made the first high-resolution 3D images of the inside of a polymer solar cell, giving them new insights in the nanoscale structure of polymer solar cells and its effect on the performance.

Mother Teresa said, “Suffering is a gift of God.” Well, it may be true that suffering tends to build character, but it also sometimes builds bitterness and criminals. In any case, we would naturally prefer to do without it, especially the extreme forms of it.



We can derive much toward answering the question from a basic knowledge of the evolution of life. Ernst Mayr succinctly summed up the process of natural selection: “Natural selection is a two-step process: (1) variations produced, and (2) variations sorted, with the elimination of the less fit so that you end up with a ‘selection’ of the best." Fitness may involve cooperative abilities as well as competitive, and the ability to adjust to varying environmental conditions.

One of Doug Futuyma's great quotes is this one:

"...no biologist today would think of publishing a paper on ‘new evidence for evolution’... it simply hasn’t been an issue in scientific circles for more than a century."
- Futuyma, 1998 Evolution Biology, 3rd edition

Press officers are a different story. Here's one from the University of California, Riverside:

Molecular decay of enamel-specific gene in toothless mammals supports theory of evolution

New beautiful images from the Hubble Space Telescope (HST) have been released recently, and they are, as always, a pleasure to behold. The HST was serviced in a mission by the Space Shuttle Atlantis crew last May, to replace some broken gyroscopes and drained batteries, and perform a number of additional important tasks that will allow operation to continue for many years to come.

Among the new installed instruments the new HST sports an improved wide field camera, WFC3, which promises a significant improvement of the quality of telescope's imaging capabilities.

You may know that correlation studies have shown that the risk of becoming obese is 2.5 times higher for those who have double copies of the best known risk gene for being overweight or obese, the FTO gene (fat mass and obesity associated).

New discoveries of that sort have led to a resurgence in concern that we may be slaves to our genes, but is that the case?  No, in every study obesity still required high calorie consumption, especially fat.   A low fat diet neutralizes the harmful effects of the gene.

The smell of 'death' that repels insects turns out to be a truly ancient signal for avoiding disease or predators, says David Rollo, professor of biology at McMaster University in the journal Evolutionary Biology.

What do the death stench of corpses of from insects to crustaceans all have in common?   A blend of specific fatty acids. 

Because insects and crustaceans diverged more than 400-million years ago it is likely that most subsequent species recognize their dead in a similar way, that the origin of such signals was likely even older, and that such behavior initially occurred in aquatic environments (few crustaceans are terrestrial). 

Older people have noticed their thinner arms and legs and perhaps you have as well.   It's no secret muscle is harder to maintain, much less build, as we age but science was unclear exactly why.    

A team of researchers the University of Nottingham Schools of Graduate Entry Medicine and Biomedical Sciences say that the suppression of muscle breakdown, which also happens during feeding, is blunted with age. 

Muscle mass is important because a loss of muscle which decreases strength and increases the likelihood of falls and fractures - and a 'double whammy' affects people aged over 65.  But weight training may 'rejuvenate' muscle blood flow and help retain muscle for older people.

Michael Cosmopoulos was raised in Athens but has been in St. Louis since 2001.  Yet his heart and his science never left Greece.   Since 1999, he has been working at a site in Pylos and he recently came across a real-life palace dating back to the time of the Trojan War.

The Trojan War is just a story, of course (though if you don't think so, which figure from Homer's historical work do you think I am?)(1) but historians debate what kernels of truth may be in there.
 

Vegetable oils can be chemically reacted with an alcohol (methanol is the usual choice) to produce chemical compounds known as esters. Biodiesel is the name given to these esters when they are intended for use as fuel.

The Voynich Manuscript Part 9 : An Amateur's Work?