James Comey was invovlved in of the more interesting moments in recent government - an amazing story that I had mostly forgotten. How the Republicans treat him in the nomination hearings will be interesting.
Westerners can pay anything from $10,000 (£6,600) to $100,000 (£66,000) for permits to climb the mountain and guides to accompany them, and a sizeable tourist industry has sprung up around the base - bringing with it complaints about litter and poor sanitation for miles around.
"There were just people everywhere," says Ayisha Jessa, 31, a keen climber from London who recently visited Everest's base camp. At the nearby village of Namachi, she says, "it's completely commercialised - everything is intended for the Western traveller".
For many serious climbers, all this has served to devalue Everest.
"It isn't a wilderness experience - it's a McDonald's experience," says Graham Hoyland, an experienced mountaineer and author of The Last Hours on Everest, an account of the ill-fated 1924 ascent by George Mallory and Andrew Irvine.
Perhaps the answer for people who want the challenge is to test themselves on K2 or one of the other really tough eight thousanders.
Too Fat to Fit through the Door: First Evidence for Disturbed Body-Scaled Action in Anorexia Nervosa during Locomotion
Anouk Keizer, Monique A. M. Smeets, H. Chris Dijkerman, Siarhei A. Uzunbajakau, Annemarie van Elburg, Albert Postma
To date, research on the disturbed experience of body size in Anorexia Nervosa (AN) mainly focused on the conscious perceptual level (i.e. body image). Here we investigated whether these disturbances extend to body schema: an unconscious, action-related representation of the body. AN patients (n = 19) and healthy controls (HC; n = 20) were compared on body-scaled action. Participants walked through door-like openings varying in width while performing a diversion task. AN patients and HC differed in the largest opening width for which they started rotating their shoulders to fit through. AN patients started rotating for openings 40% wider than their own shoulders, while HC started rotating for apertures only 25% wider than their shoulders. The results imply abnormalities in AN even at the level of the unconscious, action oriented body schema. Body representation disturbances in AN are thus more pervasive than previously assumed: They do not only affect (conscious) cognition and perception, but (unconscious) actions as well.
Citation: Keizer A, Smeets MAM, Dijkerman HC, Uzunbajakau SA, van Elburg A, et al. (2013) Too Fat to Fit through the Door: First Evidence for Disturbed Body-Scaled Action in Anorexia Nervosa during Locomotion. PLoS ONE 8(5): e64602. doi:10.1371/journal.pone.0064602
Editor: Manos Tsakiris, Royal Holloway, University of London, United Kingdom
Received: February 15, 2013; Accepted: April 15, 2013; Published: May 29, 2013
Metallic bonds are a collective behavior that come from a lattice of metal ions that is bathed in a sea of electrons. The bonds have no preferred direction. Covalent bonds that form in many molecules have very different characteristics - they tend to be strong and very directional. The directionality allows the formation of complex shapes.
An interesting question is how do a few metal atoms act together? Where does the metallic bond behavior emerge? It turns out the bond between a couple of metal atoms is covalent in nature. A neat paper on metallic bonds at a tiny scale.
from the arXiv
Metallic bonds become molecular-like in atomic-sized devices
Covalent molecules are characterized by directed bonds, which provide stability-of-form to the molecules relative atomic positions. In contrast, bulk metals are characterized by delocalized bonds, where a large number of resonance structures ensure their high stability. However, reduced to atomic dimensions, metallic arrangements become increasingly vulnerable to disruptive entropic fluctuations. Using the smallest possible device, namely, a single atom held between two atomically sharp probes, force to rupture single-atom bridges was measured with pico-level resolution, using gold and silver. Remarkably, measured forces are found to be a precise vector sum (directional bonding) of cohesive forces between the central and adjacently coordinated atoms. Over three to four times stronger than bulk, the directional bonds provide high configurational stability to atomic-sized metallic devices, just as delocalization-induced resonance stabilization is the emergent response of bulk metals. Results open new opportunity for molecular electronics without complications arising from metal/molecule interfaces.