10 research outputs found
Large-Scale Automatic Audiobook Creation
An audiobook can dramatically improve a work of literature's accessibility
and improve reader engagement. However, audiobooks can take hundreds of hours
of human effort to create, edit, and publish. In this work, we present a system
that can automatically generate high-quality audiobooks from online e-books. In
particular, we leverage recent advances in neural text-to-speech to create and
release thousands of human-quality, open-license audiobooks from the Project
Gutenberg e-book collection. Our method can identify the proper subset of
e-book content to read for a wide collection of diversely structured books and
can operate on hundreds of books in parallel. Our system allows users to
customize an audiobook's speaking speed and style, emotional intonation, and
can even match a desired voice using a small amount of sample audio. This work
contributed over five thousand open-license audiobooks and an interactive demo
that allows users to quickly create their own customized audiobooks. To listen
to the audiobook collection visit \url{https://aka.ms/audiobook}
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Winter floods in Britain are connected to atmospheric rivers
Damage from flooding in the winter and fall seasons has been widespread in the United Kingdom (UK) and Western Europe over recent decades. Here we show that winter flood
events in the UK are connected to Atmospheric Rivers (ARs), narrow ribbons along which a large flux of moisture is transported from the subtropics to the mid-latitudes. Combining river flow records with rainfall measurements, satellite data and model simulations, we demonstrate that ARs occur simultaneously with the 10 largest winter flood events since 1970 in a range of British river basins, suggesting that ARs are persistently critical in explaining extreme winter flooding in the UK. Understanding the physical processes that determine the persistence of AR events will be of importance in assessing the risk of future
flooding over north-western Europe and other mid-latitude regions
Blood stem cell PU.1 upregulation is a consequence of differentiation without fast autoregulation
Transcription factors (TFs) regulate cell fates, and their expression must be tightly regulated. Autoregulation is assumed to regulate many TFs' own expression to control cell fates. Here, we manipulate and quantify the (auto)regulation of PU.1, a TF controlling hematopoietic stem and progenitor cells (HSPCs), and correlate it to their future fates.We generate transgenic mice allowing both inducible activation of PU.1 and noninvasive quantification of endogenous PU.1 protein expression. The quantified HSPC PU.1 dynamics show that PU.1 up-regulation occurs as a consequence of hematopoietic differentiation independently of direct fast autoregulation. In contrast, inflammatory signaling induces fast PU.1 up-regulation, which does not require PU.1 expression or its binding to its own autoregulatory enhancer. However, the increased PU.1 levels induced by inflammatory signaling cannot be sustained via autoregulation after removal of the signaling stimulus.We conclude that PU.1 overexpression induces HSC differentiation before PU.1 up-regulation, only later generating cell types with intrinsically higher PU.1.ISSN:0022-1007ISSN:1540-0069ISSN:1540-953
Yosemite Hydroclimate Network: Distributed Stream and Atmospheric Data for the Tuolumne River Watershed and Surroundings
Regions of complex topography and remote wilderness terrain have spatially-varying patterns of temperature and streamflow, but due to inherent difficulties of access, are often very poorly sampled. Here we present a dataset of distributed stream stage, streamflow, stream temperature, barometric pressure, air temperature, and relative humidity from the Tuolumne River Watershed in Yosemite National Park, Sierra Nevada, California, U.S.A. for water years 2002 to 2015, as well as a quality-controlled meteorological forcing timeseries for use in hydrologic modeling. Data unique to this paper were collected using low-visibility and low-impact installations for wilderness locations and can be used alone or as a critical supplement to ancillary datasets collected by cooperating agencies, referenced herein. This dataset provides a unique opportunity to understand spatial patterns and scaling of hydroclimatic processes in complex terrain and can be used to evaluate downscaling techniques or distributed modeling. The paper also provides an example methodology of how to conduct hydroclimatic monitoring in remote wilderness.These data are offered without warranty. Use at your own risk. We ask that you send an e-mail to Jessica Lundquist at jdlund_at_uw.edu if you decide to use the data. Also, please let Jessica know if anything looks odd, as we are continuously trying to improve the data quality control.Funding for data processing came from the National Science Foundation, CBET-0729830, and NASA Grant-NNX15AB29G