This survey will deal with the problem of selective opening attacks (SOA). We will present the known results (both possibility and impossibility ones) and the main open questions related to SOA. Despite the importance of this problem, many of the important questions were open until very recently and some important questions about the power of SOA are still open.

As is well known, classical General Relativity does not constrain the topology of the spatial sections of our Universe. However, the Brane-World approach to cosmology might be expected to do so, since in general any modification of the topology of the brane must be reflected in some modification of that of the bulk. Assuming the truth of the Adams-Polchinski-Silverstein conjecture on the instab...

This paper reviews the clinical findings in the Hakim-Adams syndrome and distinguishes it from the more general term of normal pressure hydrocephalus. The radiographic tests to diagnose these entities are discussed in their historical context. Computed tomography has recently replaced the pneumoencephalogram for evaluating ventricular size and configuration and computed tomographic metrizamide ...

The electrocardiograms and salient clinical features of seven patients with electrocardiographic evidence of various types of bilateral bundle-branch block (BBBB) have been presented. When the complexes change in form and the P-R interval varies, the mechanisms are usually best interpreted by using the concepts of first degree, second degree, and third degree bundle-branch block with or without...

Adams-Oliver syndrome (AOS) is characterized by the combination of congenital scalp defects (aplasia cutis congenita) and terminal transverse limb defects of variable severity. It is believed that Adams-Oliver syndrome without major organ abnormalities does not necessarily alter the normal lifespan. We present a case without detectable major organ abnormality contrary to life but with poor weig...

I is now well accepted that alcohol abuse and dependence are biomed­ ical disorders and are not the result of personal moral turpitude or depravi­ ty. However, 40 years ago, the con­ ceptualization of alcohol problems as illness rather than personal deviancy was not well accepted in American society. Scholars have noted that “the transformation of alcoholism from depravity to disease began with...