Results from movement surveys on Rutford Ice Stream are presented with complementary surface-elevation and ice-thickness measurements. Surface velocities of 300 m a−1 occur at least 130 km up-stream of the grounding line and contrast strongly with the neighbouring Carlson Inlet, where a velocity of 7 m a−1 has been measured. This contrast in velocity is not topographically controlled but appears to be due instead to differences in basal conditions, with Carlson Inlet probably being frozen to its bed. Concentration of lateral shear close to the margins and surface expression of subglacial topography both support a view of significant basal shear stresses in the central part of Rutford Ice Stream. The pattern of principal strain-rate trajectories shows a small number of characteristic features which can be compared with results from future modelling of the glacier’s flow.
The researchers drew on more than 50,000 virus genome sequences, in which 26,000 of these sequences were obtained from the Covid-19 Genomics UK (COG-UK) consortium. The results of the study offer a crucial context to what is happening now in the current wave of the pandemic in the UK. The same team have hence incorporated the genomic factor in identifying the latest variant (termed B.1.1.7) that is currently growing at rapid rates throughout the country. The study is based on data from the first wave of the pandemic in early 2020, when the virus was first introduced into the region, and has found that the highest number of transmission chains had been introduced from Spain at 33%, France at 29%, and Italy at 12%. Transmission chains of the virus from China, meanwhile, accounted for only 0.4% of imports. In a news article published by Oxford University, Professor Oliver Pybus, co-lead author based at Oxford’s Department of Zoology and the Oxford Martin School, said that by reconstructing where and when COVID-19 was introduced to the UK, we can see that earlier travel and quarantine interventions could have helped to reduce the acceleration and intensity of the UK’s first wave of cases. Another co-lead author, Louis du Plessis, also from Oxford’s Department of Zoology, added that the UK shares large volumes of virus genetic data publicly on a weekly basis, and that “if you don’t have this level of surveillance, you won’t know the real situation of virus evolution and transmission.” Researchers from the Universities of Oxford and Edinburgh have recently published a comprehensive genomic analysis of the Covid-19 transmission. The full report was released on 8 January 2021, presenting detailed insights into the behaviour of Covid-19 transmission chains since the outbreak of the pandemic in the UK. The team of scientists have suggested that a detailed comparison of the new variant’s behaviour with that of the first wave lineages will be crucial to understanding why the B.1.1.7 variant is spreading so quickly now. Before the March 2020 lockdown, high travel volumes and lax restrictions on international travel led to the circulation of more than 1,000 identifiable UK transmission lineages which had persisted into the summer of the same year. Image Credit: iSO-FORM LLC. Licence: CC BY 4.0 PhD researcher Verity Hill also emphasised that this form of continuous, nationally coordinated genomic sequencing allows for high-resolution analysis and for other countries to place their genomic data into context. This would enable countries to strategise a more effective pandemic response.
Grateful Dead guitarist Bob Weir recently released his first complete batch of solo songs in over 30 years, and has been celebrating his new album with a countrywide tour. Titled Blue Mountain, the album sees Weir pick up the acoustic guitar and hone in on his cowboy roots. The music is stripped down, feeling comfortable in the well worn pages of Americana.Before Weir embarked on his tour, or even released the new albun, the guitarist held an intimate performance at the McKittrick Hotel in New York, NY. As Weir returns to the Big Apple tonight, he’s shared a brand new video from that intimate celebration of Blue Mountain.In the new clip, Weir takes on the title track, performing a solo acoustic rendition of the beautiful song. Watch him below.Weir is set to perform two nights at the Kings Theatre in Brooklyn, NY beginning tonight, October 14th. Enjoy!
continue reading » Credit bureau Equifax announced Thursday it experienced a cybersecurity incident potentially impacting as many as 143 million American consumers. CUNA is monitoring the situation and working with other financial trade groups to assess if the situation will affect financial institutions.According to the company, it has found no evidence of unauthorized activity on Equifax’s core consumer or commercial credit reporting databases.The information accessed primarily includes names, Social Security numbers, birth dates, addresses and, in some instances, driver’s license numbers.In addition, Equifax believes hackers accessed:Credit card numbers for approximately 209,000 U.S. consumers; and 9SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr
MASON CITY — A two-year long road construction project in Mason City is about to come to an end. The Iowa Department of Transportation says work on State Highway 122 between South Monroe and South Carolina is scheduled to be completed on Friday. Weather permitting, crews at 5 o’clock on Friday evening will start shifting traffic, which currently is running head-to-head in the westbound lanes, onto the newly reconstructed eastbound lanes, returning traffic to their normal patterns. The DOT says drivers should still be aware of temporary lane closures as the contractor wraps up the project. Stop signs that were removed at the Delaware, Jefferson, and Pennsylvania Avenue intersections will once again be installed on the side streets crossing the highway.