Apart from the interest of the book on historical grounds, its value is enhanced by the fact that it is a summary of the late Professor Donders' monumental work on the subject in which he was the pioneer. The anomalies of refraction are summarized in a series of aphorisms which show, in a striking manner, how far the writer was in advance of his times, and how little has since been added to the...

Sm-Nd ages of pegmatite dikes that crosscut gold-bearing structures in the southern Yilgarn Craton, Western Australia, provide minimum age constraints of 2640 6 11 Ma, 2628 6 10 Ma, and 2620 6 36 Ma for gold mineralization at the Westonia and Nevoria (Yellowdine Terrane) and Scotia (Norseman Terrane) gold deposits, respectively. Similarly, a post–gold mineralization dike at Westonia has a U-Pb ...

The genus Margaiostus Stibick, 1978, previously known from North and South America, is recorded for the first time in the fauna of the Palaearctic region. M. sundukovi sp. nov. is described from the Far East of Russia. The position of this species within the genus and the distribution of Margaiostus are discussed.

Homoplasmy is a feature usually found in the mtDNA of higher animal taxa. On the other hand, the presence of two classes of mtDNA in the same cell or organism is rare and may appear in length or site variation. Data from mtDNA RFLP analysis of Brycon opalinus populations (Cuvier, 1819; Characiformes, Characidae, Bryconinae) revealed site heteroplasmy from endonuclease NheI digestion. Southern b...

Since the collapse of the Soviet Union in 1991, the Russian Federation ("Russia") and former soviet satellite countries and republics of Central and Eastern Europe ("Soviet Bloc") have struggled with privatizing housing and establishing market-based residential mortgage systems. This thesis addresses the recent efforts of three former Soviet Bloc countries (the Czech Republic, Hungary and Polan...

Based on the recent QSO surveys it is shown that, contrary to the widespread notion, high-luminousity QSOs are at least as numerous in the nearby universe as the ultraluminous far-infrared galaxies (ULIGs). Therefore, the fraction of ULIGs that have got a hidden quasar at the nucleus, for example in the dust shrouded phase, cannot be overwhelmingly large.

Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padua, Italy; Department of Internal Medicine, Samara State Medical University, Samara, Russian Federation, Russia; Hammersmith Hospital, Imperial College NHS Trust, London, UK; Cardiologie–CHU Rennes et LTSI INSERM 1099–Université Rennes-1, France; Departments of Cardiology, University of Liège Hospital, GIGA Cardiovas...

Plasmon resonances in 3D nanoparticle arrangements can produce strong localized optical fields, which are of importance for any application involving interaction of light with subwavelength volumes of matter down to the molecular level. In particular, remarkable field enhancement and confinement occur in a dimer geometry formed by two identical closely spaced particles. Although, recent advance...

We demonstrate stimulated emission depletion microscopy using opposing objective lenses to noninvasively reveal the nanoscale morphology of block copolymers in three dimensions with focused light. This is exemplified in a poly(styrene-block-2-vinylpyridine) model system in which contrast is achieved by specifically staining the vinylpyridine phase with a fluorescent dye. We image swelling induc...

We report that two-dimensional (2D) sub-diffraction-limited images can be theoretically reconstructed by a new metamaterial far-field superlens. The metamaterial far-field superlens, composed of a metal-dielectric multilayer and a one-dimensional (1D) subwavelength grating, can work over a broad range of visible wavelengths intrinsically. The imaging principle and the reconstruction process are...