We discuss the sharp focusing of an initial hybrid vector light field n-th order that has n C-lines (lines along which polarization is circular). Using a complex Stokes field, it shown singularity index such equal to / 2. The retain in focal plane. Analytical expressions are obtained for intensity and components It theoretically numerically even-order with = 2p, pattern at focus symmetry instea...

We present the theoretical foundations of LPTP, a logic program theorem prover implemented in Prolog by the author. LPTP is an interactive theorem prover in which one can prove termination and correctness properties of pure Prolog programs that contain negation and built-in predicates like is/2 and call/n. The largest program that has been verified using LPTP is 635 lines long including its spe...

We describe the TEXES survey for mid-IR H2 pure rotational emission from young stars and report early successes. H2 emission is a potential tracer of warm gas in circumstellar disks. Three pure rotational lines are available from the ground: the J= 3⇒ 1, J=4⇒ 2, and J= 6⇒ 4, transitions at 17.035 μm, 12.279 μm, and 8.025μm, respectively. Using TEXES at the NASA IRTF 3m, we are midway through a ...

The mice were drawn from stock and MRC breeds, the characters of which are described in the previous paper (1) , and from the pure lines C57, CBA, C3H, and dba. As far as was possible a pregnant and a nonpregnant mouse of any one breed, of similar age, were examined on the same day, as a safeguard against any variations due to the season of the year or to changes in the quality of the foodstuff...

yekta was created in 1981 from crossing between b5 ? m7 and an early maturing palistinian line, in oil seed crops research department of seed and plant improvement institute (spii) at karaj. the pure line of the cross was obtained after five years of selection with pedigree method. preliminary evaluation of the line along with other 31 selected lines was done in 1989 and yekta together with oth...

background: many natural products from plants have been recognized to exert anticancer activity. in this study, ethanolic extracts of selected medicinal herbs from iranian flora including alyssum homolocarpum fisch. (from seeds), urtica dioica l. (from aerial parts), cichorium intybus l. (from roots) and solanum nigrum l. (from fruits), were evaluated for their cytotoxic effect on different cel...

The 2012 Albert Lasker Special Achievement Award in Medical Science will be shared by Donald Brown and Tom Maniatis for their scientific work leading to the purification and study of single genes by physical and molecular biological methodologies. Brown and Maniatis are also recognized for their extraordinary commitment and generosity in promoting the careers of young scientists. The impact of ...

Abstract Tomato is worldwide the most grown vegetable. The primary target of breeding programs to develop new tomato cultivars that are resistant pests and diseases, in combination with high quality yield, well-adaptation good firmness. Among different types, cherry cocktail tomatoes widely preferred by consumers due their better taste appearance. In this study, two female tester lines were cro...