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数字经济核算的国际比较:口径界定、统计分类与测度实践 被引量:6
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作者 陈鹤丽 《东北财经大学学报》 2022年第4期41-53,共13页
数字经济是当前最具活力与创新力的经济形态,已成为拉动全球经济发展的新引擎。实践中快速发展的数字经济对统计核算提出了新的要求,但当前国际上对数字经济核算还有许多内容仍未形成共识。本文选取国际上关于数字经济核算领域最受关注... 数字经济是当前最具活力与创新力的经济形态,已成为拉动全球经济发展的新引擎。实践中快速发展的数字经济对统计核算提出了新的要求,但当前国际上对数字经济核算还有许多内容仍未形成共识。本文选取国际上关于数字经济核算领域最受关注的口径界定、统计分类与测度实践三个方面进行梳理与比较。首先,对基于自下而上法、自上而下法和灵活界定法的数字经济核算口径进行归纳与比较;其次,对主要国家和国际组织编制的数字经济统计分类体系进行梳理与比较;最后,从数字经济增加值核算、数字经济相关指数的编制和数字经济卫星账户构建三个方面探讨国际上对数字经济的测度实践。本文有利于明晰数字经济核算的国际进展,为中国实践开展数字经济核算提供参考。 展开更多
关键词 数字经济核算 口径界定 统计分类 测度实践
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Could quantitative liver function tests gain wide acceptance among hepatologists? 被引量:7
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作者 Giovanni Tarantino 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第28期3457-3461,共5页
It has been emphasized that the assessment of residual liver function is of paramount importance to determine the following: severity of acute or chronic liver diseases independent of etiology; long-term prognosis; s... It has been emphasized that the assessment of residual liver function is of paramount importance to determine the following: severity of acute or chronic liver diseases independent of etiology; long-term prognosis; step-bystep disease progression; surgical risk; and efficacy of antiviral treatment. The most frequently used tools are the galactose elimination capacity to asses hepatocyte cytosol activity, plasma clearance of indocyanine green to assess excretory function, and antipyrine clearance to estimate microsomal activity. However, a widely accepted liver test (not necessarily a laboratory one) to assess quantitative functional hepatic reserve still needs to be established, although there have been various proposals. Furthermore, who are the operators that should order these tests? Advances in analytic methods are expected to allow quantitative liver function tests to be used in clinical practice. 展开更多
关键词 Chronic diseases Fatty liver Hepatitis viral Liver cirrhosis Liver function tests Prognosis
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Investigation of Correlation between the Temperature on Air-Snow and Snow-Ice Interfaces and the Atmospheric Air Temperature
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作者 Vadim K. Goncharov Natalia Yu. Edush +6 位作者 Ekaterina S. Zueva Natalia Yu. Klementeva Jianmin Qin Liqin Cui Li Zhang Xiao Deng Peng Cheng 《Journal of Earth Science and Engineering》 2016年第5期245-253,共9页
Solution of the practical problems of the ice engineering requires the data about the strength of the ice cover that depends upon its temperature. In most cases, the snow lies on the ice cover and the ice temperature ... Solution of the practical problems of the ice engineering requires the data about the strength of the ice cover that depends upon its temperature. In most cases, the snow lies on the ice cover and the ice temperature differs from the atmospheric air temperature. To reveal the correlation of the air temperature with temperature on interfaces air-snow and snow-ice, the known in the thermophysics solution of the problem of the heat transfer through the multilayer plate was applied. Derived solution connects the temperature of air and temperature on the snow-ice interface and satisfactory correlates with data of the field measurements of the temperature within snow layer and ice cover and ice thickness on the Heilongjiang (Amur) River. Results of investigation are recommended for the ice temperature evaluation in engineering practice. 展开更多
关键词 SNOW ICE AIR TEMPERATURE interface ice thickness.
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