نتایج جستجو برای: 1990 through 2007
تعداد نتایج: 1521425 فیلتر نتایج به سال:
in providing the context for their clinical trial, wrote that “observationaldata link[NSB]consumptionwithexcessiveweight gain; however, randomized, controlled trials are lacking and necessary to resolve the debate.” Where feasible, randomized, controlledtrialsarethebestmeanstoanswerthescientificquestionbutareonlyoneelementinformingpolicydecisions.Apoint ofourCommentarywas that this topichasbeco...
[1] The extent and thickness of the Arctic sea ice cover has decreased dramatically in the past few decades with minima in sea ice extent in September 2007 and 2011 and climate models did not predict this decline. One of the processes poorly represented in sea ice models is the formation and evolution of melt ponds. Melt ponds form on Arctic sea ice during the melting season and their presence ...
BACKGROUND Rabies is a major public-health problem in developing countries such as China. Although the recent re-emergence of human rabies in China was noted in several epidemiological studies, little attention was paid to the reasons behind this phenomenon paralleling the findings of the previous reports. The purpose of this study is thus first to characterize the current trends of human rabie...
the purpose of this study was to map the structure of scientific outputs of petroleum field in science citation index (sci) accessible via web of science (wos) during 1990 to 2011 and determine the position of iran. the used research methods were citation analysis and historiography. the results showed that there were totally 26859 records indexed in the petroleum discipline during 1990-2011 in...
Executive Summary This study assesses the contribution of agriculture to Wisconsin's economy. Building on the analysis of Deller (2004), we use data from 2007 in this study. By using 2007 as the year of analysis, we are able to build on the current Census of Agriculture, which provides detailed data for 2007. We also explore changes in aggregate measures of agriculture from 1990 to 2007, and mo...
This paper describes a system for detecting and estimating the properties of multiple travel lanes in an urban road network from calibrated video imagery and laser range data acquired by a moving vehicle. The system operates in several stages on multiple processors, fusing detected road markings, obstacles, and curbs into a stable non-parametric estimate of nearby travel lanes. The system incor...
This article presents the architecture of Junior, a robotic vehicle capable of navigating urban environments autonomously. In doing so, the vehicle is able to select its own routes, perceive and interact with other traffic, and execute various urban driving skills including lane changes, U-turns, parking, and merging into moving traffic. The vehicle successfully finished and won second place in...
Local governments in the Slovak Republic are important public administration and form an part of sector, as they provide various services. Until 1990, all services were provided only by state. The reform began 1990 with decentralization competencies. Several competencies transferred to local from state, thus municipalities that state previously provided. Registry offices first be acquired This ...
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