I’ve been doing so well. Papers read and posts written for 107 papers thus far this year. Then suddenly… Silence.
It’s not that I haven’t been thinking about science. Quite the contrary.
I haven’t been reading or posting because I went there. I marched. In Washington DC. With 40,000 of my science colleagues.
With planning the trip, travel, and actually being there and trying to take in all of Washington’s museums and sights, well… It just didn’t happen. Nevertheless, I will catch up. I have papers selected. I’m ready to read.
In the meantime, enjoy some photos:
My updated profile pic for the March for Science
U is for Uintatherium
Uintatherium was a massive hoofed mammal that lived during the Eocene epoch. Superficially, they were rather rhinoceros-like, though they were not related.
A reconstruction of Uintatherium.
Credit: Dmitry Bogdanov CC 3.0 By SA
Notably, Uintatheres had many horns and protuberances on their skulls, in addition to robust tusks.
Cast of Uintatherium anceps (Leidy, 1872) – syn. Dinoceras mirabile (Marsh 1872) skull, neck vertebrae.
Credit: Jebulon [Public Domain]
T is for Tapocyon
Tapocyon is a genus of miacid carnivores that lived during the Paleocene and Eocene epochs of North America. It was a climbing mammal that likely spent a great amount of time in trees.
Life reconstruction of Tapocyon robustus.
Credit: Nobu Tamura CC 4.0 By SA
S is for Smilodectes
Smilodectes is an extinct primate that lived in North America during the Eocene.
Early Eocene (55-50 mya); Smilodectes gracilis, Smithsonian National Museum of Natural History.
Credit: Ryan Somma CC 2.0 By-SA
R is for Reithroparamys
Reithroparamys is another extinct rodent from North America. Species of this genus ranged from the late Paleocene into the mid-Eocene. Four species are known from this genus.
Q is for Quadratomus
Quadratomus is an Eocene rodent. There are four species within this genus all of which lived in North America.
#365papers for April 20, 2017
Farrell, Plevin, Turner, Jones, O’Hare, and Kammen, 2006, Ethanol can contribute to energy and environmental goals: Science, v. 311, p. 506-508.
What’s it about?
An important question about producing ethanol from crops is whether or not the energy costs of production outweigh the energy gained from the ethanol produced. The authors here take six previous studies that had very different results and come up with a means to compare them. In doing so, they are able to show where ethanol can, in fact, yield greater energy than it costs to produce. Continue reading
P is for Protylopus
Protylopus is an extinct type of camel that lived from the middle to late Eocene in North America. It is the oldest known camel.
Protylopus petersoni skull.
Credit: Robert Bruce Horsfall [Public domain], via Wikimedia Commons
#365papers for April 19, 2017
Agarwal, 2007, Biofuels (alcohols and biodiesel) applications as fuels for internal combustion engines: Progress in Energy and Combustion Science, v. 33, p. 233-271.
What’s it about?
This lengthy paper is a summary of the types of biofuels (that is liquid fuels produced from crops) that can replace ethanol and diesel in common engines used for transportation and agriculture. It goes into the sources of such fuels, some of the mechanisms to make the fuels, and efficiencies. Continue reading
O is for Ourayia
Ourayia is a fossil primate, which, like Notoparamys, is related to tarsiers. Like many fossil mammals, it is best known for its teeth.
VPPU.011236: Ourayia uintensis: HYPODIGM. Utah. Uintah County. Kennedy’s Hole, Uinta Basin. Princeton 1895 Hatcher Expedition. Coll: Hatcher, J. B. 25 Mar 1895. Tertiary. Late Eocene. Uintan. Uinta Fm. Middle Uinta B.
Courtesy of the Peabody Museum of Natural History,
Division of Vertebrate Paleontology, Yale University; peabody.yale.edu