نتایج جستجو برای: q25
تعداد نتایج: 404 فیلتر نتایج به سال:
This paper explores the e ects of rainwater harvesting (RWH) on aggregate household labor supply in areas prone to droughts. Using a Brazilian survey on rainwater harvesting, we nd that having a RWH infrastructure at the homestead increases household wellbeing through three channels: (i) a direct time allocation e ect since households spend less time fetching water from distant sources, the tim...
M ammary analogue secretory carcinoma is a primary salivary gland tumor that was first described in 2010, with histologic, immunophenotypic, and genetic features reminiscent of secretory carcinoma of the breast. Both tumors harbor the same defining ETV6eNTRK3 fusion gene, resulting from the t(12;15) (p13;q25) translocation. Of interest to dermatopathologists, primary cutaneous tumors resembling...
Homozygosity mapping is a very powerful method for finding rare recessive disease genes in monogenic disorders and may also be useful for locating risk genes in complex disorders, late onset disorders where parents often are not available, and for rare phenotypic subgroups. In the present study, homozygosity mapping was applied to 24 persons with bipolar disorder from 22 inbred families. The fa...
Over the last three decades, ambient concentrations of sulfur dioxide (SO2) air pollution have declined by approximately 80%. This paper tests whether the 1970 Clean Air Act and its subsequent amendments caused this decline. The centerpiece of this legislation is the annual assignment of all counties to SO2 nonattainment or attainment categories. Polluters face stricter regulations in nonattain...
Cytogenetic analyses were performed on a bone giant cell reparative granuloma (GCRG) and on three bone giant cell tumors (GCT). The present GCRG case is the second to be described cytogenetically. A modal chromosome number of 46 was observed in all samples. Clonal chromosome abnormalities were detected in all cases. The numerical alterations most frequently observed involved the loss of chromos...
Despite the recent completion of the human genome project, the mapping of disease-related chromosomal translocation breakpoints and genes has remained laborious. Here, we describe a novel and rapid procedure to map such translocation breakpoints using flow-sorted chromosomes in combination with array-based comparative genomic hybridization (arrayCGH). To test the feasibility of this approach, w...
This paper examines and quantifies the complex linkages between industrial activity, environmental regulations and air pollution in China. We utilize a little used dataset of Chinese industry specific emissions for a variety of pollutants between 1996 and 2003. Our analysis allows us to investigate the role played by different determinants of emissions intensity. We find pollution intensity to ...
Environmental problems, such as climate change, have great uncertainties. Current expectations are that uncertainties about climate change will be resolved quickly. We examine this hypothesis theoretically and computationally. We consider Bayesian learning about the relationship between greenhouse gas levels and global mean temperature changes, a key uncertainty. Learning is non-trivial because...
We estimate the price elasticity of water demand with household-level data, structurally modeling the piecewise-linear budget constraints imposed by increasing block pricing. We develop a mathematical expression for the unconditional price elasticity of demand under increasing block prices and compare conditional and unconditional elasticities analytically and empirically. We test the hypothesi...
This paper explores empirically the impact of enforcement efforts on environmental compliance, focusing on the role of regulator reputation spillover effects. We find that, on the margin, the impact of a fine for water pollutant violations is about a two-thirds reduction in the statewide violation rate in the year following a fine. This large result obtains through the regulator’s enhanced repu...
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