A detailed record of the physical processes that operate during post-main-sequence evolution is contained in the internal chemical structure of white dwarfs. Global pulsations allow us to probe the stellar interior through asteroseismology, revealing the signatures of prior nuclear burning, mixing, and diffusion in these stars. I review the rapid evolution of structural models for helium-atmosp...

J a n u a r y 2 0 1 2 improving academic progress and substantially improving graduation prospects, particularly for disadvantaged students. This report included data for over 21,000 students from four cohorts who entered ninth grade between fall 2005 and fall 2008. Findings in the report were based on a series of randomized lotteries that were used when SSCs had more applicants than seats, in ...

The criteria to be satisfied before the repair of a ventricular septal defect is advised in childhood cannot yet be stated with certainty. Even while knowledge of the natural history remains incomplete, however, little difficulty should be found in selecting for repair the large but uncomplicated defect, or in rejecting as not in need of repair the very small defect. There are more complex situ...

On-surface synthesis is a promising strategy for engineering heteroatomic covalent nanoarchitectures with prospects in electronics, optoelectronics and photovoltaics. Here we report the thermal tunability of reaction pathways of a molecular precursor in order to select intramolecular versus intermolecular reactions, yielding monomeric or polymeric phthalocyanine derivatives, respectively. Depos...

multiple sclerosis (ms) is a life-long condition with a wide and varied range of symptoms which can have a profound impact on all aspects of a patient’s life including future plans, self-confidence, self-esteem, relationships, quality of life and employment prospects. living with ms can certainly be difficult and frustrating. over time, however, most people find ways to adapt and come to terms ...

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Angiogenesis plays a vital part in the pathogenesis and treatment of cardiovascular disease and has become one of the hotspots that are being discussed in the past decades. At present, the promising angiogenesis therapies are gene therapy and stem cell therapy. Besides, a series of studies have shown that the ultrasound targeted microbubble destruction (UTMD) was a novel gene delivery system, d...

The control of polarization, an essential property of light, is of wide scientific and technological interest. The general problem of generating arbitrary time-varying states of polarization (SOP) has always been mathematically formulated by a series of linear transformations, i.e. a product of matrices, imposing a serial architecture. Here we show a parallel architecture described by a sum of ...

In this paper we experimentally document the existence of an unexplored violation of rationality in decision making under uncertainty. In a series of incentivized decision tasks subjects have to choose between risky and ambiguous prospects or state to be indifferent, where the last option effectively means delegating the choice to a fair chance device. We observe that half of the subjects deleg...

Good afternoon. I am pleased to participate in the Cleveland Clinic’s “Ideas for Tomorrow” series. My public remarks often concern short-run economic developments, but it is important once in a while to place those shorter-term developments in the context of the powerful longterm trends shaping the global economy. Of these trends, surely one of the most important is the rapid and sustained econ...