نتایج جستجو برای: since 1970s during 1970s
تعداد نتایج: 2089035 فیلتر نتایج به سال:
Flood hazard across the western United States (US) has generally shown decreasing trends in recent decades. This region's extreme streamflow is highly influenced by natural variability, which could either mask or amplify anthropogenic trends. In this study, we utilize a technique known as dynamical adjustment to assess historical (1970–2020) annual maximum 1-day (Qx1d) from unregulated basins U...
Several respected experts recently declared victory in the deregulation of telecommunications, favorably comparing changes in the industry to the 1970s, when Gerald Ford and Jimmy Carter eliminated regulations on transportation and oil and gas industries. Compared to that wave of deregulation, however, declaring victory in telecommunications is premature. Regulatory reform in communications has...
Global air temperature has become the primary metric for judging global climate change. The variability of global temperature on a decadal timescale is still poorly understood. This paper examines further one suggested hypothesis, that variations in solar radiation reaching the surface (Rs) have caused much of the observed decadal temperature variability. Because Rs only heats air during the da...
The anabolic steroids associated androgens have exposed the world with abuse problems during recent decades. The consumption of testosterones has been growing rapidly since the 1930s as androgens. Athletes were noticed about the hormonal effects of testosterones, and so the consumption of testosterones has rapidly increased among bodybuilders and other athletes from the 1950s to the 1970s. So, ...
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