The development of simple tests to predict a leukemic relapse in young patients has come a step closer. Approximately 20 percent of young leukemia patients who are treated with stem cells derived from umbilical cord blood will experience leukemic relapse but new research findings published in Blood demonstrate that the blame falls partially on T cells, a subset of white blood cells. 

The researchers analyzed blood samples from young children who received an umbilical cord blood transplant for the treatment of blood disorders, including leukemia. They were particularly interested in studying the three to six month time period post-transplantation, when the children were most susceptible to both relapse and infection.

New research in Nature has a surprising conclusion; the impact of deforestation on global warming varies with latitude, which at least explains a frustrating lack of warming in the U.S. even though global warming has been measured higher overall.

The researchers calculated that north of Minnesota, or above 45 degrees latitude, deforestation was associated with an average temperature decrease of 1.5 degrees Fahrenheit. On the other hand, deforestation south of North Carolina, or below 35 degrees latitude, appeared to cause warming. Statistically insignificant cooling occurred between these two latitudes.

Turkey Day is coming, and with it, the deadline for Obama’s 12-member “Super Committee,” a group of Congress members tasked with carving $1.2 trillion off our national debt.

If the bipartisan group can even reach a deal (so far, they’ve missed their own deadline by at least ten days, flatly refused each others’ proposals and been awfully closed-lipped about possible compromises), it seems like everyone’s going to feel the pinch.

Everyone, that is, who can’t buy his or her way out of it.

Last week, the American Petroleum Institute — the notorious “Big Oil” lobby representing Chevron, Exxon Mobil, Shell and others — started running ads thanking Republican super committee members for preserving industry-specific tax breaks worth $40 billion over the next ten years.

After a more careful reading of the paper, the listening to a seminar on the result, and some discussions, I can share with you a few more details on the Opera measurement.

Planet Earth: Extreme Beauty – Extreme Danger

Fresh results from the OPERA collaboration once more confirm the faster than light neutrinos indicated by MINOS. The new findings, available here, also further strengthen a particular scenario: The neutrinos do not travel with superluminal velocity all the way. They only ‘jump’ a small initial distance shorter than 20 meters, after which they settle back and travel as usual with speeds below that of the speed of light. This initial jump would occur at speeds that are more than ten times the speed of light, perhaps even millions of times the speed of light.

One of the biggest difficulties in understanding and acceptance of evolutionary biology is the eye.  It isn't just detractors who are trying to protect a sectarian viewpoint, it is genuinely curious people, smart people, who don't get it because it isn't easy. Science is difficult and, inside science, evolution is difficult. We've even had prominent biologists here submit the idea that perhaps, given its difficulty, evolution might be better reserved for college students, the same way quantum mechanics is reserved in physics and surgery is reserved for actual doctors even though high school students learn anatomy.

UPDATE: some technical considerations on the measurement are available in a followup post I wrote after attending a seminar on the new result today. In particular, one startling consideration emerges - if the reading of the 20 MHz Opera clock were off by just one tick, the result would be compatible with v=c.

UPDATE: you can download the new Opera paper at this link. You will need to use the username and password "neuvel".

Sheesh, it isn't even Thanksgiving but companies are already advertising Top Ten Lists?  When will it end? 

There are still 37 shopping days until Christmas but The Sunday Times already has its top ten gadgets of 2011 list up. Compiled by their technology panel, the results will also be featured in the inaugural Tech List supplement within the main newspaper this weekend. To coincide with the launch, consumer research was conducted looking at gadget and technology trends together with spending plans this Christmas.