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161.
Maria Salinas Maite López-Garrigós Emilio Flores Ana Santo-Quiles Mercedes Gutierrez Javier Lugo Rosa Lillo Carlos Leiva-Salinas 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(1):49-56
Introduction
Preanalytical control and monitoring continue to be an important issue for clinical laboratory professionals. The aim of the study was to evaluate a monitoring system of preanalytical errors regarding not suitable samples for analysis, based on different indicators; to compare such indicators in different phlebotomy centres; and finally to evaluate a single synthetic preanalytical indicator that may be included in the balanced scorecard management system (BSC).Materials and methods
We collected individual and global preanalytical errors in haematology, coagulation, chemistry, and urine samples analysis. We also analyzed a synthetic indicator that represents the sum of all types of preanalytical errors, expressed in a sigma level. We studied the evolution of those indicators over time and compared indicator results by way of the comparison of proportions and Chi-square.Results
There was a decrease in the number of errors along the years (P < 0.001). This pattern was confirmed in primary care patients, inpatients and outpatients. In blood samples, fewer errors occurred in outpatients, followed by inpatients.Conclusion
We present a practical and effective methodology to monitor unsuitable sample preanalytical errors. The synthetic indicator results summarize overall preanalytical sample errors, and can be used as part of BSC management system.Key words: Preanalytical phase, errors in laboratory medicine, balanced scorecard, patient safety 相似文献162.
Four studies examined whether Israeli 5-year-olds (N = 88) and adults (N = 48) drew inferences about psychological properties based on a character's social category, personality trait, or physical appearance trait. Study 1 revealed that while children drew inferences mostly by social category, adults did it by personality trait. Study 2 showed that the children's pattern was not due to how the categorical information was conveyed. Studies 3 and 4 demonstrated that for kindergarteners, labels, not appearances, are determinant of the inductive potential of social categories. Studies indicated that "Jew" and "Arab" were the most inductively powerful social categories for both children and adults. The results carry implications for the roles of language, appearances, and culture in the conceptualization of "human kinds." 相似文献
163.
Michael Gil’ 《Journal of The Franklin Institute》2018,355(10):4241-4247
We consider the function Lyapunov equation where A and C are given matrices, f(z) is a function holomorphic on a neighborhood of the spectrum σ(A) of A. For a solution X of that equation, norm estimates are established. By these estimates we investigate perturbations of a matrix A whose spectrum satisfies the condition . In the case with a positive integer ν we obtain conditions that provide localization of the spectrum of a perturbed matrix in a given angle. 相似文献