New frontiers in charge density studies

NEW FRONTIERS IN ANGIOGENESIS New Frontiers in Angiogenesis

Two Common Sources of Systematic Errors in Charge Density Studies

Resolution independent residuals ) ( / ) ( o c o I I I σ ς − = should not show any discontinuities, when plotted against the resolution . The density of reflections per resolution range, however, changes with resolution, which limits the information value from these plots. Residuals plotted against ranked resolution values, should be uniform and are easy to interpret. These plots of individual ...

More about systematic errors in charge-density studies.

In order to detect and graphically visualize the absence or presence of systematic errors in fit data, conditional probabilities are employed to analyze the statistical independence or dependence of fit residuals. This concept is completely general and applicable to all scientific fields in which model parameters are fitted to experimental data. The applications presented in this work refer to ...

New frontiers in arrhythmias.

Understanding of the mechanisms responsible for disorders of cardiac rhythm has been increasing rapidly in the past I0 years. A great stimulus to these advances in knowledge has been the recognition in Coronary Care Units of the high mortality associated with some arrhythmias. The principal inroads that have been made into the high mortality of patients with acute myocardial infarction who are ...

New Opportunities for Charge Density Studies Using the FAST Area Detector*

The requirements for charge density studies of more complex molecules have been realized by use of the FAST area-detector diffractometer in conjunction with a rotating-anode generator, which allows to collect large quantities of diffraction data within less than two days, independent of unit cell size. Oxalic acid dihydrate has been chosen for test experiments. Data collection strategies are de...