We try to understand the behavior of algebraic shifting with respect to some basic constructions on simplicial complexes, such as union, coning, and (more generally) join. In particular, for the disjoint union of simplicial complexes we prove ∆(K∪̇L) = ∆(∆(K)∪̇∆(L)) (conjectured by Kalai [2]), and for the join we give an example of simplicial complexes K and L for which ∆(K ∗ L) 6= ∆(∆(K) ∗∆(L)) ...

An 88-year-old woman with an undiagnosed chronic subdural haematoma underwent emergency repair of a femoral hernia under spinal anaesthesia. The patient complained of headache postoperatively, and a subsequent computed tomography brain scan showed an acute-on-chronic subdural haematoma, with midline shift and impending coning. The patient recovered completely after surgical decompression. The d...

Zones of Weakness in the Earth's Crust: DR. WiLL Quotations: LIAM BowiE ........ 589 Biochemistry and Medicine................. .... 610 Periodicals for Mathematicians: PROFESSOR EDWARD Scientific Apparatus and Laboratory Methods: S. ALLEN .. 592 An Issue Raised in "A New Type of Lysimeter The American Association for the Advancement of at the New Jersey Agricultural Experimnent StaScience: tio...

the exposure to electromagnetic field emitted by mobile telephones is increasing rapidly worldwide that causes side effects, including thermal and non thermal side effects. ear proximity to electromagnetic source may lead to greater damage and side effects, including hearing loss. this study was performed to assess the chronic effect of exposure to electromagnetic field of mobile telephones on ...

introduction: to reduce incidence of residual cholesteatoma following ear surgery; and to reduce the need for second look “open” mastoidectomy using endoscopic mastoidotomy. ten-year retrospective chart review of 249 primary cholesteatoma cases (1994-2004) with a minimum follow-up of two years.  the first objective was to evaluate the effectiveness of otoendoscopy in reducing the incidence of “...