The covering radius R of a code is the maximal distance of any vector from the code. This work gives a number of new results concerning t[ n, k], the minimal covering radius of any binary code of length n and dimension k. For example r[ n, 41 and t [ n, 51 are determined exactly, and reasonably tight bounds on t[ n, k] are obtained for any k when n is large. These results are found by using sev...

Geographic characters--traits describing the spatial distribution of a species-may both affect and be affected by processes associated with lineage birth and death. This is potentially confounding to comparative analyses of species distributions because current models do not allow reciprocal interactions between the evolution of ranges and the growth of phylogenetic trees. Here, we introduce a ...

dcchiavello's method of staining.?The refer^Ce is in the book on Virus Diseases of Man y Van Rooyan & Rhodes, 2nd edition 1948, |>age 33 yan Rooyan & Rhodes 1948 could be r'icketted after the words Macchiavello's Method of staining. In the reference at the ^ this reference should be included. Complement fixation test.?The test is ')erforined to detect unknown antigen by a . n?wn antibody. The m...

The standard radius of curvature at a point q(s) on a smooth curve can be defined as the limiting radius of circles through three points that all coalesce to q(s). In the study of ideal knot shapes it has recently proven useful to consider a global radius of curvature of the curve at q(s) defined as the smallest possible radius amongst all circles passing through this point and any two other po...

The measurement of spherical surface radii exceeding few meters presents a challenge, because the familiar radius-bench method requires large part displacements. Dual-focus zone plates can extend the radius-bench method to measurements of large radii. OCIS codes: (220.4840) Testing, (050.1965) Diffractive lenses

Potassium Channels allow potassium flux and are essential for the generation of electric current acrossexcitable membranes. Potassium Channels are also the targets of various intracellular controlmechanisms; such that the suboptimal regulation of channel function might be related to pathologicalconditions. Realistic studies of ion current in biologic channels present a major challenge for compu...

iron oxide is an important biological agent that has a key role in medical processes; however, the mechanism whereby it provides iron for human and animal cells and its biological uses remains unclear. we aimed to evaluate the effects of oral iron oxide on serum iron status and compare the results with those of iron sulfate as a reference salt. fifteen adult rabbits were divided into 3 groups o...

background tendon injuries are common and it takes a long time for an injured tendon to heal. adverse phenomena such as adhesion and rupture are associated with these injuries. finding a method to reduce the time required for healing whichimproves the final outcome, will lead to decreased frequency and intensity of adverse consequences. this study was designed to investigate the effects of basi...

objective(s): atherosclerosis is the main leading cause of cardiovascular diseases. the purpose of this study was to assess the potential preventive effect of egg yolk hdl on the atherosclerosis plaque formation. materials and methods: thirty rabbits were divided into five groups: a; normal diet, b; hyper-cholesterolemic diet, c; hypercholesterolemic + 400 mg/kg egg yolk hdl d; hypercholesterol...

eighteen primiparous rabbit does comprising of six per breed of new zealand white (nzw), chinchilla (cc) and dutch belted (db). they were randomly allocated to three rebreeding interval groups of 7, 14 and 21 days postpartum. three breeding males, one per breed were used giving a total of 21 rabbits. significant (p