Archive for June, 2013
Q&A: David Altshuler on How to Share Millions of Human Genomes – ScienceInsider
Tuesday, June 11th, 2013http://news.sciencemag.org/scienceinsider/2013/06/-qa-david-altshuler-on-how-to-sh.html
But how will a little player participate in this? MT @gtyrelle: Q&A: on How to Share Millions of Human Genomes http://bit.ly/19jlKNs
Choosing sunscreen for your kids: Organic or mineral? SPF 30 or 50? Spray or lotion? Help. – Slate Magazine
Tuesday, June 11th, 2013Interesting scientific primer, absorbers v reflectors (Zinc oxide), “Organic sunscreens often contain oxybenzone”. These have the issue of free radical formation.
QT:”
Some sunscreen companies add antioxidants like vitamin E and vitamin C to their formulations as well to absorb some of these reactive compounds. One 2011 study found that the addition of antioxidants to SPF 15 or 50 sunscreen formulations reduced the numbers of reactive oxygen species in skin more than two-fold.
…
Retinyl palmitate, a form of vitamin A, is an antioxidant added to many sunscreens and cosmetics (it’s also a food additive, used to fortify some dairy products and cereals). Although the FDA considers retinyl palmitate to be safe, research suggests that upon interaction with UVA light, the compound produces reactive oxygen species. …
And what about application method—sprays, gels, wipes, or
old-fashioned lotions? The Environmental Working Group warns against sprays because of the risk that the chemicals could be inhaled or get into the eyes. But if your child won’t let you near her with anything but a cool mist, by all means use it—just ask him to hold his breath and close his eyes as you apply it. The EWG also warns against combination sunscreen/bug sprays, which may increase absorption of the repellant chemicals, and sunscreen wipes, which might not deliver adequate protection.
”
http://www.slate.com/articles/double_x/the_kids/2013/06/choosing_sunscreen_for_your_kids_organic_or_mineral_spf_30_or_50_spray_or.html
Great sunscreen primer: organic absorbers (oxybenzone) v mineral reflectors (ZnO) in relation to radicals via @Slate:
http://bit.ly/1bqd9oM
Data-Driven Tech Industry Is Shaken by Online Privacy Fears – NYTimes.com
Monday, June 10th, 2013Larry Hunter, the Cassandra of digital privacy – Ideas – The Boston Globe
Monday, June 10th, 2013Isp-fellows Legal basis for PRISM
Monday, June 10th, 2013An attempt at addressing the government’s and companies’ claims that the NSA does not have “unfettered access” to user content.
QT: “Just because you have a court order does not mean that court order is constitutional:”
http://www.theatlantic.com/national/archive/2013/06/prisms-legal-basis-how-we-got-here-and-what-we-can-do-to-get-back/276667/
Genome-wide inference of natural selection on human transcription factor binding sites
Monday, June 10th, 2013http://www.nature.com/ng/journal/vaop/ncurrent/full/ng.2658.html Uses only CG data for variation, only TFBS data form ENCODE. QT:”the binding sites of several transcription factors show clear evidence of adaptation.”
Sony RX100 Review: This Camera Singlehandedly Makes Point-and-Shoots Relevant Again
Sunday, June 9th, 2013RX100 User Guide in pdf format – download here: Sony Cyber-shot Talk Forum: Digital Photography Review
http://www.dpreview.com/forums/post/42125936
http://m.gizmodo.com/5931587/sony-rx100-review-this-camera-singlehandedly-makes-point+and+shoots-relevant-again