Perhaps it's resolution-making hangover inherent in the start of a new calendar year and simultaneous beginning of another semester, but I've felt particularly optimistic about my future in graduate school recently. But, I'm going to choose to remain optimistic here and choose to believe that it's recent intellectual discussion - of the sort I honestly thought I'd be a part of when I got to graduate school (back when I was young and innocent - and thus could potentially recapture this enthusiasm when necessary by engaging in similar discussions. 

Here is a molecular biology discovery that we can chalk up to our increasing love of lean bacon:

"ZBED6, a Novel Transcription Factor Derived from a Domesticated DNA Transposon Regulates IGF2 Expression and Muscle Growth", in PLoS Biology.

If you're a bacon lover, you may not realize how much your culinary satisfaction is intertwined with genetics. The drive to breed leaner pigs has led to the search for genetic variants that affect muscle mass and fat deposition in pigs. Some years back, in order to find such genetic variants, a Swedish research group crossed European Wild Boars and Large White domestic pigs.

If the coming Olympic games handed out gold medals for news coverage of medical topics, the coveted podium in a winner-takes-all contest would likely be a lonely place. Not that there aren't worthy contestants, but like figure skating's Michelle Kwan in 1998 and 2002, the hopefuls need a few tweaks before they can triple-axel their way to success.

The latest and greatest miracles, break-throughs, and fads are trumpeted in the news, and the newsroom's dwindling coffers combined with a "have to beat the other guys to it" 24-hour news cycle means consumers are often shortchanged.

Archaeologists from the Department of Biblical Studies at the University of Haifa say they've  deciphered the earliest known Hebrew writing in existence, an inscription dating from the 10th century BCE (the period of King David's reign). The discovery is significant because it means the Bible may be several centuries older than current estimates suggest, researchers say.

"It indicates that the Kingdom of Israel already existed in the 10th century BCE and that at least some of the biblical texts were written hundreds of years before the dates presented in current
research," says Prof. Gershon Galil of the University of Haifa who deciphered the inscription.

Writing in the January 8 issue of Science, a group of environmental scientists is calling on the U.S. Environmental Protection Agency and the U.S Army Corps of Engineers to stay all new mountaintop mining permits. They argue that peer-reviewed research unequivocally documents irreversible environmental impacts from this form of mining, which also exposes local residents to a higher risk of serious health problems.

Contrary to the conclusions of dozens of other studies, a new paper appearing in  Global Change Biology argues that as the climate warms and growing seasons lengthen, subalpine forests are likely to soak up less carbon dioxide. The authors, scientists at the University of Colorado, say that more of the greenhouse gas will be left to concentrate in the atmosphere as a result.

The researchers found that while smaller spring snowpack tended to advance the onset of spring and extend the growing season, it also reduced the amount of water available to forests later in the summer and fall. The water-stressed trees were then less effective in converting CO2 into biomass. Summer rains were unable to make up the difference.

When people think of the Cold War they tend to dwell on all the negatives that came with it: totalitarian governments, proxy wars, a nuclear arms race, and so on. But looking back on the period, the authors of a new paper in the journal Biological Conservation say there was an odd ecological benefit that resulted from the interruption of trade that occurred between Eastern and Western Europe during the Cold war--fewer invasive species.

"Global trade is a real concern for invasive species, and the lessons we can learn from the Cold War offer a warning flag to developing countries that are now expanding in an international economy," said co-author Susan M. Shirley.

While fossils may provide some tantalizing clues about human history, they also lack vital information needed to understand the past, such as which pieces of human DNA have been favored by evolution because they confer beneficial traits. Those genetic signs can only be revealed through studies of modern humans and other related species, and in a new Science Express paper, researchers describe a method for pinpointing these preferred regions within the human genome.

Researchers from the University of Bristol have analyzed the teeth of a 30,000-year-old child originally found in the Abrigo do Lagar Velho, Portugal in 1998. Classified as a modern human with Neanderthal ancestry, the child raises controversial questions about how extensively Neanderthals and modern human groups of African descent interbred when they came into contact in Europe

Blanket subsidies for hybrid electric vehicles won't get drivers out of their old gas guzzlers and into the new energy efficient cars, according to a new study in Energy Policy.  When it comes to pumping up the appeal of plug-in hybrid electric vehicles (PHEVs), researchers say some regions are more ripe for the cars than others, and some consumers' buttons need more pushing than others.

The study found that giving consumers who live and drive in regions where the social benefits of electric–boosted cars are strongest, and recognizing the circumstances of consumers – such as their income, life stage and family size – gives PHEVs a better shot at both sales and environmental and energy security effectiveness.