We construct the N = 2 super W4 algebra as a certain reduction of the second Gel’fand-Dikii bracket on the dual of the Lie superalgebra of N = 1 super pseudodifferential operators. The algebra is put in manifestly N = 2 supersymmetric form in terms of three N = 2 superfields Φi(X), with Φ1 being the N = 2 energy momentum tensor and Φ2 and Φ3 being conformal spin 2 and 3 superfields respectively...

background the effect of psychological factors in the context of a growing number of sports, prevention of sports injuries, exercise rehabilitation and as an effective tool for managing stress and anxiety in the race has been confirmed by various studies ،the purpose of the present study was to determine the level of sport competitive anxiety in iranian elite basketball player and its relations...

Let G be a connected graph of order n, minimum degree δ(G), and edge-connectivity κ (G). The graph G ismaximally edge-connected if κ (G) = δ(G) and super edge-connected if every minimum edge-cut consists of edges incident with a vertex of minimum degree. A list (d1, . . . , dn) is graphic if there is a graph with vertices v1, . . . , vn such that d(vi) = di for 1 ≤ i ≤ n. A graphic list D is su...

BACKGROUND Cattle shedding at least 104 CFU Escherichia coli O157:H7/g feces are described as super-shedders and have been shown to increase transmission of E. coli O157:H7 to other cattle in feedlots. This study investigated relationships among fecal isolates from super-shedders (n = 162), perineal hide swab isolates (PS) from super-shedders (n = 137) and fecal isolates from low-shedder (< 104...

drought stress is the most limiting factor of agricultural production through the world. to evaluate the effect of super absorbent and humic acid to reduce drought stress in sugar beet production, a strip split plot arrangement based on randomized complete block design with three replications was conducted at research field of faculty agriculture, ferdowsi university of mashhad, iran during gro...