We report herein five new coordination polymers of general formula [LnNa(C(6)H(5)CO(2))(4)] where Ln = Y (6), Tb (7), Er (8), [DyNa(CH(3)CO(2))(4)(MeOH)] (9) and [DyNa(C(3)H(7)CO(2))(4)] (10). Single crystal structure analyses revealed that all compounds have a repeating unit containing one Ln(3+), one Na(+) and four monocarboxylate ligands (RCO(2)(-)) (R = -CH(3), -C(3)H(7), -C(6)H(5)). Compou...

Polymorphism, based on inheritance and dynamic binding in standard object-oriented languages, is one of the most powerful mechanisms available to the OO designer. It allows the system designer to customize the behavior of functions defined in particular base classes by suitably redefining, in derived classes, other functions that they invoke. At the same time, polymorphism, especially when used...

Unilateral deafness has a high incidence in children. In addition to children who are born without hearing in one ear, children with bilateral deafness are frequently equipped only with one cochlear implant, leaving the other ear deaf. The present study investigates the effects of such single-sided deafness during development in the congenitally deaf cat. The investigated animals were either bo...

AIMS We report the clinical and angiographic results of the OPEN I study, a multicentre prospective single-arm study evaluating both the drug-eluting and bare metal STENTYS® stents in the treatment of coronary bifurcation lesions. METHODS AND RESULTS The STENTYS® stent is a provisional, self-expanding, nitinol stent with small interconnections that can be disconnected by balloon angioplasty i...

Introduction Deep brain stimulation (DBS) is an established surgical treatment for Parkinson’s disease (PD), essential tremor and dystonia. It is generally acknowledged that the development of DBS as we know it today started with the publication of Benabid, Pollak et al in 1987 on thalamic DBS for tremor. However stereotactic surgery for PD was very common in the pre-levodopa era, and the vast ...

Background: A common concern in some cochlear-implanted children is the lack of desired progress in auditory and listening skills. Such a concern remains despite proper verbal processor programming, additional disabilities, and continuous participation in hearing rehabilitation programs. A more detailed assessment of pathways and centers of the auditory processing at the lower end of the brain ...

Let L be a quadratic lattice over a number field F . We lift the lattice L along a Zp-extension of F and investigate the growth of the number of spinor genera in the genus of L. Let Ln be the lattice obtained from L by extending scalars to the n-th layer of the Zp-extension. We show that, under various conditions on L and F , the number of spinor genera in the genus of Ln is 2 +O(1) where η is ...

Four groups of eight infants (3 weeks of age on average) were each habituated to one of four displays consisting of a grating of either low (0.4 cpd) or high (1.2 cpd) spatial frequency, whose central portion was covered up with a horizontal occluder which was either narrow (1.33 degrees) or broad (4.17 degrees). These habituation displays are referred to as LN (low spatial frequency grating an...