Tusk records
نویسندگان
چکیده
منابع مشابه
TUSK: A Framework for Overviewing the Performance of F0 Estimators
This article presents a framework for overviewing the performance of fundamental frequency (F0) estimators and evaluates its effectiveness. Over the past few decades, many F0 estimators and evaluation indices have been proposed and have been evaluated using various speech databases. In speech analysis/synthesis research, modern estimators are used as the algorithm to fulfill the demand for high...
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Carbonate concretions occur in sedimentary rocks of widely varying geological ages throughout the world. Many of these concretions are isolated spheres, centered on fossils. The formation of such concretions has been variously explained by diffusion of inorganic carbon and organic matter in buried marine sediments. However, details of the syn-depositional chemical processes by which the isolate...
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The incidence of tusklessness varies between free-ranging African elephant populations. Sex-linked genetic drift predicts 2 outcomes--the condition becomes fixed and sex-specific incidences diverge when populations are small and/or heavily poached. By contrast, for large and intact populations, tusklessness diminishes and there is no variation between sexes. We tested these predictions by compa...
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In quantum gravity, one seeks to combine quantum mechanics and general relativity. In attempting to do so, one comes across the ‘problem of time’ impasse: the notion of time is conceptually different in each of these theories. In this paper, I consider the timeless records approach toward resolving this. Records are localized, information-containing subconfigurations of a single instant. Record...
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The National Archives and Records Administration (NARA) is the nation’s recordkeeper. NARA is a public trust that safeguards the records of the American people, ensuring the accountability and credibility of their national institutions, while documenting their national experience. Today NARA holds an estimated 4 billion records nationwide. The Archives consists of the permanently valuable recor...
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ژورنال
عنوان ژورنال: Science
سال: 2021
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.372.6545.930-c