cornering is more of an issue though .. and note that the pedals move -- either it's a fixed gear bike (unlikely) or an electric (could be - there are 100 and 150 watt booster motors that easily fit in carbon fiber bike tubes - edoping is a real issue in cycling)
EPAimplemented its scientific integrity policy, along with other science-centric agencies, after the Obama administration called for agencies to strengthen internal reviews on science in 2009. The move was in response to the previous administration's rewriting of regulations based on questionable or politically motivated science.
"It just got so out of control during Bush-Cheney that people began recognized it as an issue, so much so that it was one of the first actions Obama took," said Jeff Ruch of Public Employees for Environmental Responsibility, a watchdog group of former government employees and scientists.
Grifo joined the EPA in 2013, charged with implementing its new scientific integrity policy and coordinating with a new scientific integrity committee. While the Office of Inspector General handles investigations into scientific misconduct, Grifo handles matters of scientific integrity.
A neat paper in Nature Science Reports an open paper with nice illustrations
A new tyrannosaur with evidence for anagenesis and crocodile-like facial sensory system
Thomas D. Carr1, David J. Varricchio2, Jayc C. Sedlmayr3, Eric M. Roberts4 & Jason R. Moore5
1Carthage College, 2001 Alford Park Drive, Kenosha, WI 53140, USA. 2Department of Earth Sciences, Montana State University, P.O. Box 173480, Bozeman, MT 59717-3480, USA. 3Louisiana State University Health Sciences Centre - School of Medicine, 1901 Perdido Street, New Orleans, LA 70112, USA. 4Geosciences, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia. 5Honors College, University of New Mexico, Albuquerque, NM 87131, USA.
A new species of tyrannosaurid from the upper Two Medicine Formation of Montana supports the presence of a Laramidian anagenetic (ancestor-descendant) lineage of Late Cretaceous tyrannosaurids. In concert with other anagenetic lineages of dinosaurs from the same time and place, this suggests that anagenesis could have been a widespread mechanism generating species diversity amongst dinosaurs, and perhaps beyond. We studied the excellent fossil record of the tyrannosaurid to test that hypothesis. Phylogenetic analysis places this new taxon as the sister species to Daspletosaurus torosus. However, given their close phylogenetic relationship, geographic proximity, and temporal succession, where D. torosus (~76.7–75.2 Ma) precedes the younger new species (~75.1–74.4 Ma), we argue that the two forms most likely represent a single anagenetic lineage. Daspletosaurus was an important apex predator in the late Campanian dinosaur faunas of Laramidia; its absence from later units indicates it was extinct before Tyrannosaurus rex dispersed into Laramidia from Asia. In addition to its evolutionary implications, the texture of the facial bones of the new taxon, and other derived tyrannosauroids, indicates a scaly integument with high tactile sensitivity. Most significantly, the lower jaw shows evidence for neurovasculature that is also seen in birds.
Human caused global warming is well underway, but it isn't yet possible to say a given extreme bit of weather was directly caused by it. What we notice is an increased probability that such events happen. Here's a very high level good-enough for the public description why with a bit on how the individual event connection is being made better.
There was, however, a major missing part of this theory, and Michael Mann, climate scientist, joined the Rahmstorf et al team to fill in that blank. It is very difficult to be sure that a climatic phenomenon is either a) for real or b) characterizable as you’ve witnessed it, when you are looking at it for just a few years. If there is a change in climate because of the above described effects, there are not too many years of data allowing us to track it, observe its variations, or to figure out exactly how it works. This is complicated by several factors. For example, an alternate but similar explanation for the waves themselves, and the weather that comes with them, is the warming of the North Pacific. Hell, it could be both factors, because both factors may reduce the heat differential between the midriff and heads of the planet.
There are two obvious solutions to this problem. One is to sit back and wait a hundred years or so and collect data then consider the problem with a lot more information at hand. I’m sure climate scientists are busy doing this as we speak, but it may take a while! The other is to use climate modeling to simulate long periods of time, and see if quai-resonant waves and changes in the weather pattern are associated with anthropological global warming.
For some time it has been felt that some elements, gold in particular, are forged in supernova. More recently simulations suggest they are enough - something exotic is needed. From Quanta
In 1974, radio astronomers found the first binary neutron star system. With each orbit, the pair were losing energy, implying that one day they would collide. The same year, the astrophysicists James Lattimer and David Schramm modeled what would happen in such a situation — not specifically the clash of two neutron stars, since that was too complicated to calculate at the time, but the similar merger of a neutron star and a black hole.
While supernova explosions can briefly outshine the entire galaxies that host them, neutron stars are extremely difficult to see. The supernova that produced the Crab nebula was observed by many different cultures in the year 1054; the neutron star it left behind wasn’t detected until 1968. A merger of two neutron stars would be still more difficult to find and understand. But although nobody had ever seen one, this kind of exotic event could be responsible for the r-process elements, Lattimer and Schramm said.
Picture two neutron stars approaching their final embrace. In the last few orbits around each other before glomming together into a bigger neutron star or a black hole, the pair are wracked by enormous gravitational tides. The collision ejects enormous amounts of material.