We studied the recollision dynamics between the electrons and D2 1 ions following the tunneling ionization of D2 molecules in an intense short pulse laser field. The returning electron collisionally excites the D2 1 ion to excited electronic states; from there D2 1 can dissociate or be further ionized by the laser field, resulting in D1D or D1D, respectively. We modeled the fragmentation dynami...

AUTHOR Nelson, Charles A. TITLE The Categorical Perception of Facial Expressions by 7-Month-D1d-Infants. INSTITUTION Minnesota Univ., Minneapolis. Center for Research in Human Learning. SPONS AGENCY National Inst. of Child Health and Human Development (NIH), Bethesda, Md.; National Science Foundation, Washington, D.C. PUB DATE Apr 83 GRANT NICHD-HD-011,36; NSF/BNS-77-22075 NOTE 13p.; Paper pres...

Puroindoline (Pina and Pinb) genes control grain texture or hardness in wheat. Wild-type/soft alleles lead to softer grain while a mutation in one or both of these genes results in a hard grain. Variation in hardness in genotypes with identical Pin alleles (wild-type or mutant) is known but the molecular basis of this is not known. We now report the identification of wheat genotypes with hard g...

A copper-catalyzed regioselective and stereospecific aminoboration of vinylsilanes with bis(pinacolato)diboron (pinB-Bpin) and hydroxylamines has been developed. In the presence of a CuCl/MeO-dppbz catalyst, the boryl group and amino group are incorporated at the β position and α position, respectively, and the corresponding β-boryl-α-aminosilanes are obtained with good diastereoselectivity. Th...

Let G be a group of order v. A k-element subset D of G is called a (v,k,λ )difference set in G if for any nonidentity element g ∈ G, there are λ pairs of elements d1,d2 ∈ D such that d1d 2 = g. It is well-known that difference sets can be used to construct sequences used in digital communication. This paper is a survey on the recent developments of using difference sets and their variations to ...

The puroindoline proteins (PINA and PINB) of wheat display lipid-binding properties which affect the grain texture, a critical parameter for wheat quality. Interestingly, the same proteins also display antibacterial and antifungal properties, attributed mainly to their Tryptophan-rich domain (TRD). Synthetic peptides based on this domain also display selectivity towards bacterial and fungal cel...