T h e e f f e c t s o f e l e c t r o n i c s t r u c t u r e a n d c o n f o r m a t i o n o f t h e m o l e c u l e s Y C 6 H 4 C H O C H 2 1 1 ( Y = o, m, a n d p-Cl) a n d Y ' C 6 H 4 C H C C l 2 C H 2 ( Y ' = o, a n d m C l ) h a v e b e e n s t u d i e d i n b e n z e n e b e t w e e n 1 0 . 0 a n d 7 0 . 0 ° C . I n t h e o x i r a n e s y s t e m s t h e c o n j u g a t i o n b e t w e ...

antimicrobial resistance is one of the most severe threats to human health. the first report of plasmid-mediated colistin resistance in escherichia coli from animals, food, and humans was in 2015 from china. the current increasing trend of resistance is extremely troubling because polymyxins are the last-resort antibiotics for treating infections with carbapenem-resistant enterobacteriaceae.

T h e A B X c o m p o u n d s M g C u P , B a C u P ( A s ) a n d B a A g P ( A s ) h a v e b e e n p r e p a r e d a n d t h e i r s t r u c t u r e s d e t e r m i n e d . M g C u P c r y s t a l l i z e s o r t h o r h o m b i c a l l y i n a n anti-PbCl2s t r u c t u r e ( s p a c e g r o u p P n m a D . J g , a = 6 5 3 . 2 ( 1 ) p m , b — 3 8 3 . 5 ( 1 ) p m , c = 7 1 7 . 0 ( 1 ) p m ) . T...

abstract background: were made each week during year 2002 from samples of atmospheric aerosols filtered from theair at tehran nuclear research center.measurement of gross beta activities and cosmogenic beryllium-7 concentrationsmaterials and methodssampler at the nuclear research center meteorological station in tehran (40contents of samples were determined with semiconductor gamma spectrometry...

A m o n g t h e e x p e r i m e n t a l l e u k e m i a s , mas t ce l l t u m o r s a re of especia l i n t e r e s t because of t h e i r h i g h c o n t e n t of h i s t a m i n e , h e p a r i n , a n d also, in c e r t a i n species i n c l u d i n g t h e mouse , 5 h y d r o x y t r y p t a m i n e ( se ro ton in ; 5 H T ) . T w o t r a n s p l a n t a b l e m o u s e m a s t o c y t o m ...

an extremely facile and efficient procedure which has been developed for the synthesis of dihydropyrrol-2-ones. one-pot four-component reaction of amines, dialkyl acetylenedicarboxylates and formaldehyde in the presence of n,n,n,n-tetramethylguanidinium acetate [tmg][ac] in methanol at ambient temperature provides substituted dihydropyrrol-2-ones in good to high yields. the important aspects of...

P h y t o p l a n k t o n c o m p o s i t i o n a n d t h e r a n g e o f s e a s o n a l p a t t e r n s o f a b u n d a n c e a r e p r e s e n t e d f o r t h e t i d a l f r e s h w a t e r r e g i o n s i n t w o V i r g i n i a r i v e r s b a s e d o n d a t a a c c u m u l a t e d m o n t h l y f r o m 1 9 8 6 t h r o u g h 1 9 9 9 . D i a t o m s d o m i n a t e d t h e f l o r a d u r...

(S) w i t h t r a n s p o r t c u r r e n t I. I t is d e m o n s t r at e d t h a t i n h o m o g e n e o u s s u p e r c o n d u c t o r s R. D. a r e m o v i n g d u e t o t h e r m o e l e c t r i c e f f e c t (Thom-s o n h e a t) w h i l e t h e r a t e o f R. D. , vdi f o r d i f-f e r e n t m a t e r i a l s r a n g e s f r o m 1 t o 1 0 cm/s. I t i s a l s o shown t h a t t h e t h e r...

o r m s t h e b a s i s o f m a n a g e m e n t. T h i s s t u d y e v a l u a t e s t o t a l T l y m p h o c y t e a n d C D 4 l y m p h o c y t e c o u n t s a m o n g w o m e n o n D M P A a n d c o m p a r e s t h i s t o m a t c h e d c o n t r o l s t h a t w e r e n o t o n h o r m o n a l c o n t r a c e p t i o n .

o r m s t h e b a s i s o f m a n a g e m e n t. T h i s s t u d y e v a l u a t e s t o t a l T l y m p h o c y t e a n d C D 4 l y m p h o c y t e c o u n t s a m o n g w o m e n o n D M P A a n d c o m p a r e s t h i s t o m a t c h e d c o n t r o l s t h a t w e r e n o t o n h o r m o n a l c o n t r a c e p t i o n .