نتایج جستجو برای: sector element

تعداد نتایج: 320300  

Journal: :The Science of the total environment 2013
Joseph R Graney Matthew S Landis

A technique that couples lead (Pb) isotopes and multi-element concentrations with meteorological analysis was used to assess source contributions to precipitation samples at the Bondville, Illinois USA National Trends Network (NTN) site. Precipitation samples collected over a 16month period (July 1994-October 1995) at Bondville were parsed into six unique meteorological flow regimes using a min...

2010
Christopher A. Canning Baoying Wang

Laws and regulations are used to create legal obligations and define crimes. Information security concerns have prompted legislation and regulations at different levels and in different sectors to enforce legal practices and to define digital crimes. The results of digital investigations are often used as evidences whether there are guilty acts according to information security regulations. Bec...

2005
Patricia Moy Michael A. Xenos Verena K. Hess

Political candidates and citizens alike have been turning to nontraditional, “softer” sources of political information such as late-night comedy and daytime talk shows. This is particularly true during presidential elections, when candidates make guest appearances to reach audience members who may or may not be politically engaged, and when discussion of political affairs becomes more prominent...

2001
Pia Malaney Peter Berman Ajay Mahal Jeffrey Sachs Geeta Singh

2002
Francesco Aiello Alfonsina Iona Leone Leonida

We model the channels through which public expenditure on infrastructure influences firm value and shapes its investment decisions via both adjustment costs and marginal profitability of capital. We test these hypotheses by using a large panel of Italian firms. Empirical results show that infrastructure interacts with revenues and costs in shaping firm’s profitability of capital and influences ...

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