The diameters of the aorta and venae cavae at various points throughout their lengths, the diameters of their major branches, and the lengths of various aortic and vena caval segments were measured in plastic corrosion casts of the arterial and venous systems of the normal adult mouse, rat, rabbit, dog, goat, horse, and cow, extending over a body weight range of 38,000-fold (arterial) and 1,100...

electrospinning was applied to nitrocellulose (nc) solutions  in dmf, dmso  and  ethyl  methyl  keton  to  obtain  nc  nanofibers. electrospraying  process  was  observed  when  dmf  was  used  as solvent.  in  comparison  to nc/dmf, nc/dmso  solution  resulted  in the  formation  of  a  coating  film  as  indicate  by  sem.  two  different electrospun  nanofibers,  smooth  nanofibers  with  90...

purpose : to determine the association between retinal vascular diameter and its branching angles with diabetic retinopathy (dr) stages in diabetic patients methods : a descriptive analytic cross-sectional study was conducted in 62 diabetic patients (120 eyes) referred to farabi eye hospital between june 2008 and december 2009. digital fundus photography pictures were imported into photoshop so...

Given a graph F on n = IV/`l vertices, the distance between two subgraphs F 1,/ '2 c / ' , denoted by c~(F t,/ '2), is the minimum among the distances between vertices of F 1 and F 2. For some integers 1 ~< s, t ~< n, the conditional (s, t)-diameter of F is then defined as D(~,t)=maxr,,r~.r{~(Fa,F2): I V F t I = s , IVF2I=t} . Let F have distinct eigenvalues 2 > 21 > 2 2 > .-. > )~d" For every ...