نتایج جستجو برای: from earlier decades
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A phenomenon known in the international literature that is nevertheless unaddressed standard indicators used for analysing fiscal policy can yield misleading results. Creative accounting distort basic statistics, dividing data into groups of “revenue” and “expenditure” leads to same distorted results, common cyclically adjusted balance are also misleading. Based on impact these distortions, six...
The onset of spring, noted by the timing of wildlife migratory and breeding behaviors, has been occurring earlier over the past few decades. Here, we examine 15 years of loggerhead sea turtle, Caretta caretta, nesting patterns along a 40.5 km beach on Florida’s Atlantic coast. This small section of beach is considered to be the most important nesting area for this threatened species in the west...
The algal blooming in the inland lakes has become a critically important issue for its impacts not only on local natural and social environments, but also on global human community. However, the occurrences of blooming on larger spatial scale and longer time scale have rarely been studied. As the third largest freshwater lake in China, Lake Taihu has drawn increasing attention from both public ...
This article studies the impact of demographic change on experienced workers' relative wages and employment rates. We investigate empirical predictions from a framework supply demand for experience skill, using variation across U.S. local labor markets (LLMs) over last decades instrumenting skill by LLMs' age structures decade earlier. find that aging substantially reduces full-time rates, also...
During the last 25 years, the author has never reallv considered any alternative to the multiprocessor (mP) for general-purpose, cost-effective, nonminimal come -rs. This involvement with mPs at Digital Equipment Corporation (DEC), Carnegie Mellon University (CMU), Encore, Stardent, and Kendall Square Research (KSR) included 16 computers. Fourteen were built, including 7 for research or advance...
main greenhouse gas is continuing to increase in the atmosphere at an alarming rate. The level of the gas at the Zeppelin research station in Svalbard peaked at more than 397 ppm, an increase of more than 2.5 ppm on 2008. Carbon dioxide levels at Svalbard tend to be higher than the global average, but scientists said the carbon dioxide level they had measured was unprecedented, even for that lo...
The emergence of global history has been one of the more notable features of academic history over the past three decades. Although historians of disease were among the pioneers of one of its earlier incarnations-world history-the recent "global turn" has made relatively little impact on histories of health, disease, and medicine. Most continue to be framed by familiar entities such as the colo...
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