Ignaz Venetz - Climate Change Pioneer

Climate has always changed - but we have not always known it.

Events following 1816 - the year without a summer - led to a major controversy in which the scientific consensus on the one hand was countered by dogma on the other.  On reading the history of that great controversy, one gets a strong sense of Déjà vu.

Researchers have captured the bioelectrical signals necessary for normal head and facial formation in an organism and  captured the process in a time-lapse video that reveals never-before-seen patterns of visible bioelectrical signals outlining where eyes, nose, mouth, and other features will appear in an embryonic tadpole. 

The biologists from Tufts University found that before the face of a tadpole develops, bioelectrical signals (ion flux) cause groups of cells to form patterns marked by different membrane voltage and pH levels. When stained with a reporter dye, hyperpolarized (negatively charged) areas shine brightly, while other areas appear darker, creating an "electric face."

Almost a year ago I started my PhD with fieldwork on Santorini, Greece.  As I am currently planning a second round of fieldwork, I though it was time to write up my first trip.

New research has found that some of the human X chromosome originates from Neanderthals and is found exclusively in people outside Africa.

Neanderthals, whose ancestors left Africa somewhere in the range of 400,000 to 800,000 years ago, evolved in what is now France, Spain, Germany and Russia, and are believed to have lived until about 30,000 years ago.  Early modern humans left Africa about 80,000 to 50,000 years ago.

Blogging from the whereabouts of one of the most beautiful places of the Mediterranean, Balos Beach (see picture), I wish to draw your attention today to one fun search that CMS produced on data collected in 2010: the one for gluinos in events with six jets.

One of these loons who thinks all university research is worthless managed to get another op-ed to that effect published in the Chronicle of Higher Education. It's worth looking at, not for the article itself, but for the lengthy and emotional comment thread.

Thought experiments are mental exercises, or imaginative experiments, which are often not possible to perform with current technology. They appear to be particularly popular in physics and philosophy, but are by no means limited to these two fields. There are a couple of thought experiments that employ demons. After all, an imaginary entity with awesome powers can be quite useful in a thought experiment, can’t it?

      

Three of the most famous thought experiments that center around a demon with amazing capabilities, are:

Descartes’ Evil Demon

Between Easter’s religious reminders and a molecular evolution class overdose of population genetics, I shouldn’t have been surprised to wake up yesterday from an unsettling dream about taking my midterm exam on Noah’s Ark. The ocean was rising, Noah was hustling animals aboard, and I was battling asthma (thanks, furry animal allergies). But what bothered me most about all this wasn’t that I’d forgotten the formula for heterozygosity. It was that there were only two animals of every kind.

Religious beliefs aside, today’s scientific consensus is that you need more than two individuals to save a species.

Larger portions mean we eat more food but bigger bites less intuitively lead to eating less in restaurants,  according to new study in the Journal of Consumer Research.

The authors conducted their study in an Italian restaurant by using two sizes of forks to manipulate bite sizes and found that diners who used large forks ate less than those with small forks.

The authors then began to investigate why this finding seems to contradict earlier research on portion sizes. "We observe that diners visit the restaurant with a well-defined goal of satiating their hunger and because of this well-defined goal they are willing to invest effort and resources to satiate their hunger goal," the authors write.