A bstract Double Field Theory (DFT) is an attempt to make the O ( d, d ) T-duality symmetry of string theory manifest, already before reducing on a -torus. It known that supergravity can be formulated in D, D covariant way, and remarkably this remains true first order ?? . We set up systematic way analyze invariants, working by fields, which we carry out 3 At recover Riemann squared invariant, ...

background & aim:  this study aimed to determine the relationship between lipid and apolipoprotein b-100 (apo b-100) levels in maternal and umbilical cord sera as well as the effects of these components on anthropometric measurements of newborn infants. methods:this correlational study was performed on 85 appropriate for gestational age (aga) newborns and their mothers. for analysis, 5 ml of ma...

T h r e e c o m p o n e n t c o n d e n s a t i o n o f a c t i v e m e t h y l e n e c o m p o u n d s w i t h a n i l i n e a n d t r i a l k y l o r t h o f o r m a t e g i v e s a n i l i n o m e t h y l e n e 1 , 3 d i c a r b o n y l s , w h i c h c a n b e h y d r o l y s e d w i t h a q u e o u s K 2 C O 3 , K O H o r H C l , d e p e n d i n g o n t h e s e n s i t i v i t y o f t h e h...