Science

Gene Expression

Category archives for Science

Association Between Serum 25-Hydroxyvitamin D Level and Upper Respiratory Tract Infection in the Third National Health and Nutrition Examination Survey: The median serum 25(OH)D level was 29 ng/mL…and 19%…of participants reported a recent URTI [recent respiratory tract infections]. Recent URTI was reported by 24% of participants with 25(OH)D levels less than 10 ng/mL, by 20%…

fMRI is voodoo?

Seed Magazine has a nice review of the brewing controversy over shoddy statistical methods in the field of fMRI. To some extent science is politics, this is a sexy and appealing field. A friend of mine who is a psychologist mentioned that though he doesn’t think much of fMRI the head of his lab group…

Chad is complaining that The Best American Science Writing 2008 is too focused on biomedical science. He finds it especially lame that there’s no physics when this was the year of the LHC. Here’s what I found in the contents….

A transracial identity

Recently I’ve been having an on-and-off discussion with a friend about the bioethical implications of neo-eugenics. I brought up one particular issue as a thought experiment: how about selective abortion of dark-skinned fetuses among South Asians? The light and dark variants of SLC24A5 segregate within the South Asian population at high frequencies, the light variant…

Has it awakened?

Mars Rover Disoriented Somewhat After Glitch: More strangely, the Spirit had no memory of what it had done for that part of Sol 1800. The rover did not record actions, as it otherwise always does, to the part of its computer memory that retains information even when power is turned off, the so-called nonvolatile memory.…

Vitamin D & diabetes?

Vitamin D and Diabetes: Diabetes is a leading cause of cardiovascular disease. Persons with diabetes are at greater risk for early cardiac mortality, and for repeat events if they survive their first cardiac event. Recently, low serum concentrations of vitamin D have been associated with increased risk for cardiac events. Evidence indicates that persons with…

Less sleep = more illness?

Sleep Habits and Susceptibility to the Common Cold: There was a graded association with average sleep duration: participants with less than 7 hours of sleep were 2.94 times…more likely to develop a cold than those with 8 hours or more of sleep. The association with sleep efficiency was also graded: participants with less than 92%…

Space, the forgotten frontier?

I’m old enough to have very faint memories of the very first shuttle missions, though I do not recall the last moon landings. I recently heard a science fiction writer observe that when he was a child the idea of a moon landing was so futuristic. Then it happened…and we stopped going. It’s been over…

Patient’s DNA May Be Signal to Tailor Drugs: The colon cancer drugs Erbitux and Vectibix, for instance, do not work for the 40 percent of patients whose tumors have a particular genetic mutation. The Food and Drug Administration held a meeting this month to discuss whether patients should be tested to narrow use of the…

Great Dying = Great Cooling?

This is really weird, New World Post-pandemic Reforestation Helped Start Little Ice Age, Say Scientists: Stanford University researchers have conducted a comprehensive analysis of data detailing the amount of charcoal contained in soils and lake sediments at the sites of both pre-Columbian population centers in the Americas and in sparsely populated surrounding regions. They concluded…