It is a decade since the rst paper was published containing results determined using the general X-ray spectral-tting program XSPEC. Since then XSPEC has become the most widely used program for this purpose, being the de facto standard for the ROSAT and the de jure standard for the ASCA and XTE satellites. Probably the most important features of XSPEC are the large number of theoretical models ...

We have developed a novel iterative experimental-theoretical technique which can identify the atomic structure of defects in many-atom nanoscale materials from scanning tunneling microscopy and spectroscopy data. A given model for a defect structure is iteratively improved until calculated microscopy and spectroscopy data based on the model converge on the experimental results. We use the techn...

Acknowledgements First of all I would like to thank my supervisor Klaus Kassner for his overall support during the various stages of my Ph.D. studies. I am grateful for the pleasant working environment and many important learning opportunities. This work is the result of a fruitful collaboration with Laboratoire de Spec-trométrie Physique in Grenoble, where I spent numerous enjoyable research v...

In this issue of Neuron, two papers by Atencio et al. and Nagel and Doupe adapt new computational methods to map the spectrotemporal response fields of neurons in the auditory cortex. The papers take different but complementary approaches to apply theoretical techniques to classical methods of receptive field mapping and, in doing so, provide exciting new insights into the way in which sounds a...

Theoretical models have emphasized the roles played by parental anxiety and behavior in the development of childhood anxiety problems. Little is known regarding the differential impacts of mothers and fathers or regarding the processes that mediate these influences. The present study examines the relationships between maternal and paternal trait anxiety, overprotection, and emotional support on...

Conventionally, in its decision-making, the U.S. EPA has evaluated the effects and risks associated with a single pollutant in a single exposure medium. In reality, people are exposed to mixtures of pollutants or to the same pollutant through a variety of media, including the air, water, and food. It is now more recognized than before that environmental exposure to pollutants occurs via multipl...

Logically, though not historically, projective techniques must be regarded as a part of the general field of psychological measurement. Projective testing and research may therefore legitimately be studied within the theoretical and methodologicall framework of psychological measurement, always keeping in mind, of course, the problems that are peculiar to projective techniques. Largely as a.. r...

OBJECTIVES The research was aimed at searching for diversified models of female teachers' functioning that could be determined by their individual traits, psychological variables, and professional adaptation factors. MATERIAL AND METHODS Three hundred eleven female teachers aged from 26 to 60 were examined. The following tools were used in the research: The Hope Scale, NEO-FFI Inventory, IPSA...

a r t i c l e i n f o Previous research has linked narcissism, self-esteem, and aggression. Two theoretical models have been advanced to explain these relationships: the psychodynamic mask model and the threatened egotism model, each with empirical support. Past research has found gender differences in narcissism, self-esteem, and aggression ; however, little extant research into relationships ...