منابع مشابه
Failure to adequately use positive control data leads to poor quality mouse lymphoma data assessments.
The mouse lymphoma L5178Y/TK1/–-3.7.2C mutagenesis assay (MLA) is widely used to identify chemicals that are capable of inducing mutational damage (Mitchell et al., 1997). Mutants detected in the assay form a bimodal distribution based on colony size. More than two decades of research demonstrate that both small and large colony trifluorothymidine-resistant (TFTr) colonies are ‘true mutants’ an...
متن کاملPoor Quality for Poor Women? Inequities in the Quality of Antenatal and Delivery Care in Kenya
BACKGROUND Quality of healthcare is an important determinant of future progress in global health. However, the distributional aspects of quality of care have received inadequate attention. We assessed whether high quality maternal care is equitably distributed by (1) mapping the quality of maternal care in facilities located in poorer versus wealthier areas of Kenya; and (2) comparing the quali...
متن کاملStudy of Spatial Data Quality Elements and VGI Linear Data Quality Assessment Methods
Volunteered Geographic Information has provided a rich and valuable resource for spatial data in a variety of applications. Despite the many benefits, this information does not provide any guarantee for their quality. So far, there are several methods to determine the quality of VGI. In addition to introducing quality elements and their evaluation methods, the present study attempts to explore ...
متن کاملPoor Quality Embryos Hamper the Development of High Quality Ones
Embryo quality and embryo selection are critical criteria for embryo transfer and subsequently success of assisted reproductive technologies (ART). Transfer of good quality embryos is associated with increased implantation, pregnancy and live birth rates and also decreased pregnancy loss and prenatal complications in comparison with transfer of embryos with impaired quality. Furthermore, advanc...
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ژورنال
عنوان ژورنال: Deutsches Aerzteblatt Online
سال: 2015
ISSN: 1866-0452
DOI: 10.3238/arztebl.2015.0544a