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Weather Channel Founder Warns Gore May ‘Win’ Climate Debate in 2016 – Gore May ‘Declare Victory’

Climate Depot - Wed, 08/24/2016 - 09:52
Weather Channel Founder John Coleman, a meteorologist for over six decades, is warning that Al Gore may win the decades long “global warming” debate if the victor of the 2016 Presidential election further cements the UN Paris climate agreement and EPA regulations on carbon dioxide. “This election may be a ‘tipping point’ in the climate [...]

Russia considers nuclear power for sub-sea minerals exploration

World Nuclear News - Wed, 08/24/2016 - 08:22
The Rubin Central Design Bureau for Marine Engineering, based in Saint Petersburg, Russia, is reviving plans from the 1980s to establish a system for the underwater exploration of mineral resources. The Russian Nuclear Community reports on its website atomic-energy.ru today that federal agencies are considering the use of a nuclear reactor to power this proposed system.

Uranium separation resumes at Savannah River Site

World Nuclear News - Wed, 08/24/2016 - 08:04
A facility for separating uranium from used research reactor fuel at the US Department of Energy's Savannah River Site in South Carolina has restarted for the first time in five years. The extracted uranium will be used in new fuel for nuclear power plants.

Russia notes progress with fast reactor technology

World Nuclear News - Wed, 08/24/2016 - 03:22
Russia has reached two more milestones in its endeavour to close the nuclear fuel cycle. Mashinostroitelny Zavod (MSZ) - part of Russian nuclear fuel manufacturer TVEL - has completed acceptance tests of components for its ETVS-14 and ETVS-15 experimental fuel assemblies with mixed nitride fuel for the BREST and BN fast neutron reactors. MSZ has also announced the start of research and development work on the technical design of the "absorbent element" of the core of the BREST-OD-300 reactor.

Al Roker Uses Weather Report to Get on Climate Change Soapbox

Climate Depot - Tue, 08/23/2016 - 19:58
http://newsbusters.org/blogs/nb/kyle-drennen/2016/08/23/al-roker-uses-weather-report-get-climate-change-soapbox Al Roker Uses Weather Report to Get on Climate Change Soapbox By Kyle Drennen | August 23, 2016 | 3:29 PM EDT  Share it Tweet it

EPA goes ‘local’ with state-by-state climate scare campaign: ‘What Climate Change Means for Your State’

Climate Depot - Tue, 08/23/2016 - 15:16
As our climate changes, every state will become warmer. Aside from rising temperatures, the impacts of climate change are likely to be very different from state to state. Increased rainfall intensity will cause more flooding in some states, while increasingly severe droughts may threaten water supplies in other states. Farms and forests will be less [...]

‘Floods are not increasing’: Dr. Roger Pielke Jr. slams ‘global warming’ link to floods & extreme weather – How does media ‘get away with this?’

Climate Depot - Tue, 08/23/2016 - 12:01
Dr. Roger Pielke Jr., a Professor in the Environmental Studies Program at the University of Colorado and a Fellow of the Cooperative Institute for Research in Environmental Sciences (CIRES), slammed the linkage of global warming to the recent Louisiana floods and other types of extreme weather. (See: Bill Nye: Climate change is reason for Louisiana floods) Pielke [...]

Al Gore, climate activists use Louisiana floods to push narrative without evidence of link

Climate Depot - Tue, 08/23/2016 - 10:34
http://www.washingtontimes.com/news/2016/aug/22/al-gore-climate-activists-use-louisiana-floods-to-/ By Valerie Richardson – The Washington Times – Monday, August 22, 2016 Few would be surprised if President Obama took aim at climate change during his visit Tuesday to survey the Louisiana flooding, which is why global warming skeptics are already raining on his parade. The climate blame began in earnest last week with former Vice [...]

Black carbon radiative forcing [Letters (Online Only)]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:50
Peng et al. (1) conclude that a fast increase in the mass absorption cross-section (MAC) of black carbon (BC) in urban environments leads to significantly increased estimates of the BC radiative forcing (RF). Their chamber measurements are highly valuable and complement observations performed in ambient conditions, but their “enhancement factor”...

Black carbon impacts [Letters (Online Only)]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:35
Peng et al. (1) quantify aging and variation in the optical properties of black carbon (BC) particles representing ambient urban conditions in developed and developing countries. There are several key implications in the findings of Peng et al. Under polluted environments, rapid aging and highly enhanced absorption of BC particles...

CK2 balances TH17 and iTreg development [Immunology and Inflammation]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
T helper 17 (TH17) cells represent a discrete TH cell subset instrumental in the immune response to extracellular bacteria and fungi. However, TH17 cells are considered to be detrimentally involved in autoimmune diseases like multiple sclerosis (MS). In contrast to TH17 cells, regulatory T (Treg) cells were shown to be...

C-C bond scission by cytochrome P450 OleT [Chemistry]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
OleT is a cytochrome P450 that catalyzes the hydrogen peroxide-dependent metabolism of Cn chain-length fatty acids to synthesize Cn-1 1-alkenes. The decarboxylation reaction provides a route for the production of drop-in hydrocarbon fuels from a renewable and abundant natural resource. This transformation is highly unusual for a P450, which typically...

Single-cell live imaging of growing biofilms [Microbiology]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Biofilms are surface-associated bacterial communities that are crucial in nature and during infection. Despite extensive work to identify biofilm components and to discover how they are regulated, little is known about biofilm structure at the level of individual cells. Here, we use state-of-the-art microscopy techniques to enable live single-cell resolution...

PLEKHG3 enhances cell polarity by activating Rac1 [Cell Biology]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Cells migrate by directing Ras-related C3 botulinum toxin substrate 1 (Rac1) and cell division control protein 42 (Cdc42) activities and by polymerizing actin toward the leading edge of the cell. Previous studies have proposed that this polarization process requires a local positive feedback in the leading edge involving Rac small...

Phage Mu baseplate assembly [Microbiology]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Contractile phage tails are powerful cell puncturing nanomachines that have been co-opted by bacteria for self-defense against both bacteria and eukaryotic cells. The tail of phage T4 has long served as the paradigm for understanding contractile tail-like systems despite its greater complexity compared with other contractile-tailed phages. Here, we present...

Cytosolic activity of cereal rust resistance NLRs [Plant Biology]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Plants possess intracellular immune receptors designated “nucleotide-binding domain and leucine-rich repeat” (NLR) proteins that translate pathogen-specific recognition into disease-resistance signaling. The wheat immune receptors Sr33 and Sr50 belong to the class of coiled-coil (CC) NLRs. They confer resistance against a broad spectrum of field isolates of Puccinia graminis f. sp....

E3-ligase Mid1 clears Pax6 from the optic stalk [Developmental Biology]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Pax6 is a key transcription factor involved in eye, brain, and pancreas development. Although pax6 is expressed in the whole prospective retinal field, subsequently its expression becomes restricted to the optic cup by reciprocal transcriptional repression of pax6 and pax2. However, it remains unclear how Pax6 protein is removed from...

Fundamental structures of dynamic social networks [Social Sciences]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Social systems are in a constant state of flux, with dynamics spanning from minute-by-minute changes to patterns present on the timescale of years. Accurate models of social dynamics are important for understanding the spreading of influence or diseases, formation of friendships, and the productivity of teams. Although there has been...

Price of complexity in financial networks [Physics]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Financial institutions form multilayer networks by engaging in contracts with each other and by holding exposures to common assets. As a result, the default probability of one institution depends on the default probability of all of the other institutions in the network. Here, we show how small errors on the...

Rich gets simpler [Commentaries]

PNAS Early Edition Articles - Tue, 08/23/2016 - 09:14
Network science plays a central role in the study of complex systems, offering a range of computational tools and, importantly, a common language to represent systems as diverse as the World Wide Web, the human brain, and social networks (1). Within the framework of network science, a system is modeled...
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