two cases of advanced jaw destruction du e to act inomyces is mreported ; o ne with d iabetic d iathesis and a history o f too th ex tractio n the other had a t rauma o f the mandible wi th the fra cture; good results were obtained with penicillin thera py.

Ab initio calculations at the density functional theory (DFT) and the second-order Møller−Plessetperturbation theory levels with 6-31+G(d), 6-31G(d) basis sets for non-metal atoms and LANL2DZfor metal have been performed for the adsorption of dimethyl methylphosphonate (DMMP) on ZnOby Gaussisn 98 program. The calculated rotational constants by B3LYP/6-31G(d) are in moreagreement with the experi...

C o n d e n s a t i o n o f i s a t i n w i t h 4 a m i n o a c e t o p h e n o n e g a v e a q u a n t i t a t i v e y i e l d o f i s a t y l i d e n e j 9 a c e t y l a n i l i n e ( 1 ) . C o n d e n s a t i o n o f 1 w i t h a r o m a t i c a l d e h y d e s y i e l d e d t h e c o r r e s p o n d i n g i s a t y l i d e n e a z o m e t h i n e c h a l c o n e s ( 2 a f ) . I n t e r a c t...

* Reprint requests t o Dr . M. Z. A . Badr. 0340-5087/79/0800-1128/$ 01.00/0 p h e n e t h y l r a d i c a l s g i v e s e t h y l b e n z e n e w h i l e t h e i r d i m e r i s a t i o n g i v e s r ise t o 2 , 3 d i p h e n y l b u t a n e w h i c h m a y b e d e h y d r o g e n a t e d u n d e r t h e i n f l u e n c e o f t h e f r e e r a d i c a l s p r e s e n t i n t h e r e a c t i o ...

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...

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

BACKGROUND A fermented beverage of plant extracts was prepared from about fifty kinds of vegetables and fruits. Natural fermentation was carried out mainly by lactic acid bacteria (Leuconostoc spp.) and yeast (Zygosaccharomyces spp. and Pichia spp.). We have previously examined the preparation of novel four trisaccharides from the beverage: O-beta-D-fructopyranosyl-(2->6)-O-beta-D-glucopyranosy...

A new cyclic diarylheptanoid namely alnuheptanoid B (3), along with four known cyclic diarylheptanoids: myricanone (1), (+)-S-myricanol (2), myricanone 5-O--D-glucopyranoside (4), and (+)-S-myricanol 5-O--D-glucopyranoside (5) were isolated from the EtOAc fraction of Alnus japonica Steud (family: Betulaceae) stem bark. Their structures were established by different spectroscopic analyses, as ...