background: making use of the orthovoltage machines in radiotherapy, is one of the routine methods for the treatment of the superficial lesions. in this study, an important determinant of x-ray quality, the hvl (half value layer), has been evaluated. materials and methods: the hvls of a orthovoltage x-ray machine in 120 and 180 kvp are measured, using an empirical method, in which the hvls are ...

This note contains a proof of the exponential separation of depth-d circuits from depth(d + 1) circuits due to Håstad [Has89]. The separating functions are the Sipser functions, denoted fd+1,n. We use a simplified proof of Håstad’s second switching lemma due to Neil Thapen [Tha09].

ERICA FLEISHMAN*, NEIL MCDONAL†, RALPH MAC NALLY‡, DENNIS D. MURPHY§, JACK WALTERS¶ and TED FLOYD**†† * Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, CA 94305– 5020, USA; † 1900 Klamath Falls Way, Las Vegas, NV 89128, USA; ‡ Australian Centre for Biodiversity: Analysis, Policy and Management, School of Biological Sciences, Monash University 3...

Following Labour’s defeat in the 1983 general election, Michael Foot resigned as Party Leader. In the election to choose his successor (contested under the new electoral college format) Neil Kinnock received over seventy-one per cent of the electoral college vote, enjoying the crucial support of all the largest trade unions, and he also emerged as the clear winner in the CLP and PLP sections (R...

The polychaete Notaulax yamasuisp. n. (Sabellidae) is described from Okinawa and Ogasawara, south Japan, where it was found living embedded in a dead skeleton of the coral Porites sp. The new species is characterized by the presence of a pigmented sub-distal swelling on the tips of the crown radioles, a unique feature among species of the genus. Besides, its collar chaetae have an L-shape orien...

The objective of this study is to analyze the evolution of chimerism of all patients transplanted for hematologic malignancies in our unit during a 20-year period, alive without relapse at 1 year after allogeneic hematopoietic stem cell transplantation (HSCT). Chimerism was tested using short tandem repeat polymorphisms after separation into mononuclear cells and granulocytes by Ficoll density ...