tumors of t h e male u ret h ra are r a re, co m prising <1% of urolo g ic malignancies. this is a re po rt of a 44-ye a r-old man pre s ented with a 4 -month history of gross initi a l h e maturia and d y s u ri a . af t e r exami n ing the pa t ien t , we found a firm mass ex t ending 1 c m within the p roxim a l bulb a r uret h ra and a pathologic report of moderately differen t iated sq u a...

W h i l e I h a d p r e v i o u s l y w r i t t e n a c o n t e x t f r e e g e n e r a t o r i n a s s e m b l y l a n g u a g e , t h e s e p r o g r a m s w e r e w r i t t e n i n S N O B O L 3 , w h i c h i s i n t e n d e d s p e c i f i c a l l y f o r s t r i n g p r o c e s s i n g . T h e r e w e r e b o t h a d v a n t a g e s a n d d i s a d v a n t a g e s i n h e r e n t i n t h i...

S e d i m e n t d e n i t r i f i c a t i o n p o t e n t i a l f r o m t w o s i t e s i n t h e E l i z a b e t h R i v e r e s t u a r y w a s s t u d i e d o v e r a n i n e m o n t h p e r i o d u s i n g t h e a c e t y l e n e b l o c k a g e m e t h o d . R a t e s o f m i c r o b i a l p r o c e s s e s i n t h i s e n v i r o n m e n t a r e o f i n t e r e s t b e c a u s e o f t h e...

T h e tr i t ium and d e u t e r i u m c o n t e n t o f 24 s a m p l e s of a t m o s p h e r i c h y d r o g e n c o l l e c t e d at g r o u n d level near B u f f a l o . N . Y . ( U . S . A . ) , H a m b u r g ( G e r m a n y ) , and N ü r n b e r g ( G e r m a n y ) d u r i n g 1954 to 1956 was m e a s u r e d . At the b e g i n n i n g o f 1954 the T / H r a t i o was f o u n d to have b...

bond o f i m p u r i t i e s a t t h e s u r f a c e o f p o l y c r y s t a l l i n e s i 1 i c o n samples g rown on a c a r b o n r i b b o n . B e s i d e s m a i n i m p u r i t i e s ( c a r b o n and o x y g e n ) , a l w a y s p r e s e n t a t c o n c e n t r a t i o n s a r o u n d t h e i r l i m i t o f s o l u b i l i t y i n s i l i c o n , m e t a l i m p u r i t i e s have been ...

A computer ized f l ow v i s u a l i z a t i o n techn ique capab le o f q u a n t i f y i n g t h e f l o w f i e l d a u t o m a t i c a l l y has been developed. T h i s techn ique uses a f t e r g l o w i n g e f f e c t o f o p t i c a l l y a c t i v a t e d phosphorescent p a r t i c l e s t o r e t r i e v e v e c t o r i a l i n f o r m a t i o n on each t r a c e . By u s i n g r h i ...

MICRODOSIMETRY..AND THE THEORY OF STRAGGLING. Theoretical developments in microdosimetry (the determination of the spatial distribution of energy deposition on a microscopic scale) are described. It is pointed out that microdosimetric theory is equivalent to LET theory plus straggling theory. The influence of each of the different random factors (varying LET, varying track length, varying numbe...

1 . D i a g n o s i s : c . G r a n u l o m a o f t h e c o n j u n c t i v a f o l l o w i n g t r i c h i a s i s s u r g e r y . T h i s m a y o c c u r 6 w e e k s t o 6 m o n t h s a f t e r t h e o p e r a t i o n . 2 . R i s k f a c t o r s : c . T h e c o m m o n e s t c a u s e i s r e t e n t i o n o f a f r a g m e n t o f n o n a b s o r b a b l e s...

1 . D i a g n o s i s : c . G r a n u l o m a o f t h e c o n j u n c t i v a f o l l o w i n g t r i c h i a s i s s u r g e r y . T h i s m a y o c c u r 6 w e e k s t o 6 m o n t h s a f t e r t h e o p e r a t i o n . 2 . R i s k f a c t o r s : c . T h e c o m m o n e s t c a u s e i s r e t e n t i o n o f a f r a g m e n t o f n o n a b s o r b a b l e s...

I n t h i s p a p e r a t t e m p t s h a v e b e e n f o c u s e d o n u s i n g w i n d o w t r a c k i n g t e c h n l q u e t o a n a l y s e h u m a n b o d y m o v e m e n t . A c c o r d i n g t o t h e b e h a v l o r of h u m a n v i s i o n s y s t e n , a n I d e a of r o u g h a n d p r e c i s e s e a r c h s p a c e i s p r o p o s e d in o r d e r t o r e d u c e t h e s e a r c ...