aincorporate geocoded information on the local of individual students by census tract from the restricted version of the ECLS-K data to examine the variation across rural and nonrural areas in early education enrollment. 合并由人口调查短文geocoded信息关于各自的学生本机从ECLS-K数据的有限的版本审查...
[5]. Given the rarity of household-level data in water demand research, it is unclear whether the few studies classified as "long-run" adequately controlled for relevant variables. For example, Yoo et al. [14] used changes in census-tract consumption as a proxy for the effects of price ...
Tower Health began its work with Reading Hospital, the health system's flagship hospital, gathering data from payroll, staffing grids, the historical census—including the hourly census—for the previous three years for each individual unit, bed capacity, nonproductive time, turnover rate, vacancy...