69 research outputs found
GRB 221009A, The BOAT
GRB 221009A has been referred to as the Brightest Of All Time (the BOAT). We
investigate the veracity of this statement by comparing it with a half century
of prompt gamma-ray burst observations. This burst is the brightest ever
detected by the measures of peak flux and fluence. Unexpectedly, GRB 221009A
has the highest isotropic-equivalent total energy ever identified, while the
peak luminosity is at the th percentile of the known distribution. We
explore how such a burst can be powered and discuss potential implications for
ultra-long and high-redshift gamma-ray bursts. By geometric extrapolation of
the total fluence and peak flux distributions GRB 221009A appears to be a once
in 10,000 year event. Thus, while it almost certainly not the BOAT over all of
cosmic history, it may be the brightest gamma-ray burst since human
civilization began.Comment: Resubmitted to ApJ
Indicate separate contributions of long-lived and short-lived greenhouse gases in emission targets
European Union funding: 821205, 821003, 820829.
Wellcome Trust: 205212/Z/16/
Toward interoperable bioscience data
© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Nature Genetics 44 (2012): 121-126, doi:10.1038/ng.1054.To make full use of research data, the bioscience community needs to adopt technologies and reward mechanisms that support interoperability and promote the growth of an open 'data commoning' culture. Here we describe the prerequisites for data commoning and present an established and growing ecosystem of solutions using the shared 'Investigation-Study-Assay' framework to support that vision.The authors also acknowledge
the following funding sources in particular: UK
Biotechnology and Biological Sciences Research
Council (BBSRC) BB/I000771/1 to S.-A.S. and A.T.;
UK BBSRC BB/I025840/1 to S.-A.S.; UK BBSRC
BB/I000917/1 to D.F.; EU CarcinoGENOMICS
(PL037712) to J.K.; US National Institutes of Health
(NIH) 1RC2CA148222-01 to W.H. and the HSCI;
US MIRADA LTERS DEB-0717390 and Alfred P.
Sloan Foundation (ICoMM) to L.A.-Z.; Swiss Federal
Government through the Federal Office of Education
and Science (FOES) to L.B. and I.X.; EU Innovative
Medicines Initiative (IMI) Open PHACTS 115191 to
C.T.E.; US Department of Energy (DOE) DE-AC02-
06CH11357 and Arthur P. Sloan Foundation (2011-
6-05) to J.G.; UK BBSRC SysMO-DB2 BB/I004637/1
and BBG0102181 to C.G.; UK BBSRC BB/I000933/1
to C.S. and J.L.G.; UK MRC UD99999906 to J.L.G.;
US NIH R21 MH087336 (National Institute of Mental
Health) and R00 GM079953 (National Institute of
General Medical Science) to A.L.; NIH U54 HG006097
to J.C. and C.E.S.; Australian government through
the National Collaborative Research Infrastructure
Strategy (NCRIS); BIRN U24-RR025736 and BioScholar RO1-GM083871 to G.B. and the 2009 Super
Science initiative to C.A.S
Indicate separate contributions of long-lived and short-lived greenhouse gases in emission targets
Indicate separate contributions of long-lived and short-lived greenhouse gases in emission targets
European Union funding: 821205, 821003, 820829.
Wellcome Trust: 205212/Z/16/
Integrated genomic characterization of oesophageal carcinoma
Oesophageal cancers are prominent worldwide; however, there are few targeted therapies and survival rates for these cancers remain dismal. Here we performed a comprehensive molecular analysis of 164 carcinomas of the oesophagus derived from Western and Eastern populations. Beyond known histopathological and epidemiologic distinctions, molecular features differentiated oesophageal squamous cell carcinomas from oesophageal adenocarcinomas. Oesophageal squamous cell carcinomas resembled squamous carcinomas of other organs more than they did oesophageal adenocarcinomas. Our analyses identified three molecular subclasses of oesophageal squamous cell carcinomas, but none showed evidence for an aetiological role of human papillomavirus. Squamous cell carcinomas showed frequent genomic amplifications of CCND1 and SOX2 and/or TP63, whereas ERBB2, VEGFA and GATA4 and GATA6 were more commonly amplified in adenocarcinomas. Oesophageal adenocarcinomas strongly resembled the chromosomally unstable variant of gastric adenocarcinoma, suggesting that these cancers could be considered a single disease entity. However, some molecular features, including DNA hypermethylation, occurred disproportionally in oesophageal adenocarcinomas. These data provide a framework to facilitate more rational categorization of these tumours and a foundation for new therapies
Evidence generation and reproducibility in cell and gene therapy research: A call to action.
Editoria
Wide range in estimates of hydrogen emissions from infrastructure
Hydrogen holds tremendous potential to decarbonize many economic sectors, from chemical and material industries to energy storage and generation. However, hydrogen is a tiny, leak-prone molecule that can indirectly warm the climate. Thus, hydrogen emissions from its value chain (production, conversion, transportation/distribution, storage, and end-use) could considerably undermine the anticipated climate benefits of a hydrogen economy. Several studies have identified value chain components that may intentionally and/or unintentionally emit hydrogen. However, the amount of hydrogen emitted from infrastructure is unknown as emissions have not yet been empirically quantified. Without the capacity to make accurate direct measurements, over the past two decades, some studies have attempted to estimate total value chain and component-level hydrogen emissions using various approaches, e.g., assumptions, calculations via proxies, laboratory experiments, and theory-based models (simulations). Here, we synthesize these studies to provide an overview of the available knowledge on hydrogen emissions across value chains. Briefly, the largest ranges in estimated emissions rates are associated with liquefaction (0.15% to 10%), liquid hydrogen transporting and handling (2% to 20%), and liquid hydrogen refueling (2% to 15%). Moreover, present and future value chain emission rate estimates vary widely (0.2% to 20%). Field measurements of hydrogen emissions throughout the value chain are critically needed to sharpen our understanding of hydrogen emissions and, with them, accurately assess the climate impact of hydrogen deployment
Environmental integrity of emissions reductions depends on scale and systemic changes, not sector of origin
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