abstract in order to determine efficacy of some registered graminicides in control of resistant and susceptible ryegrass biotypes, two greenhouse trials were conducted at weed research department of iranian plant protection research institute during 2007. experimental design was completely randomized design with eight replications. the susceptible and resistant biotypes were treated by 19 herbi...

On the basis of earlier investigations on homeoidally striated Mac Laurin spheroids and Jacobi ellipsoids (Caimmi and Marmo 2005; Caimmi 2006a, 2007), different sequences of configurations are defined and represented on the ellipticity-rotation plane, (Oêχv). The rotation parameter, χv, is defined as the ratio, Erot/Eres, of kinetic energy related to the mean tangential equatorial velocity comp...

abstract this study was conducted under cold climate condition in khorasan during 2006-2008 growing seasons to evaluation of soil fertility in wheat-based double cropping systems under different rate of nitrogen and return of crop residues. a randomized complete block design with split-split plot arrangement and three replicates was used. main plots were five crop rotations namely: wheat-wheat,...

crop rotation is one of the essential practices in sustainable agricultural systems, be-cause of its effects on soil fertility and other benefits including a reduction in weed compe-tition. a field experiment was conducted at chaparsar rice research station, tonekabon, iran, from 2002 to 2003 to assess the influence of crop rotation, time of planting, and till-age depth on rice (oryza sativa l....

We study the growth at the golden rotation number ω = ( √ 5 − 1)/2 of the function sequence Pn(ω) = ∏n r=1 |2 sinπrω|. This sequence has been variously studied elsewhere as a skew product of sines, Birkho sum, q-Pochhammer symbol (on the unit circle), and restricted Euler function. In particular we study the Fibonacci decimation of the sequence Pn, namely the sub-sequence Qn = ∣∣∣∏Fn r=1 2 sinπ...

A series of sixand eight-membered ring-fused aminothiophenes 1-8 was investigated in terms of the height of the rotational barrier of the amino group by dynamic H NMR spectroscopy and quantum chemical methods. The restricted rotation around the N-C(sp) bond depends only on steric influences of the fused ring. The compounds with the eight-membered fused ring show a decreased barrier to rotation....

Congenital proximal radioulnar synostosis (PRUS) is a rare congenital anomaly where the radius and ulna are fused at the proximal portion which can cause the rotation of the forearm to be restricted (Fig.1). Bilateral pronation ankylosis over sixty degrees can restrict the patient’s daily activities. According to the position of the radius head in x-ray, PRUS is classified into three types, pos...

A central problem in subfactor theory is the classification of inclusions of II1 factors, N ⊆M . An important invariant for such an inclusion is the lattice of higher relative commutants, {M ′ i ∩Mj}i,j , known as the standard invariant, contained in the Jones tower N ⊆ M ⊆ M1 · · ·. There are several approaches to studying the standard invariant, namely paragroups [3], λ-lattices [8], and plan...

The classical univariate sign and signed rank tests for location have been extended over the years to the multivariate setting, including recent robust rotation invariant “spatial” versions. Here we introduce a broad class of rotation invariant multivariate spatial generalized rank type test statistics. For a given inference problem not restricted to location, the test statistics are linked thr...

We study (h)-minimal configurations in Aubry-Mather theory, where h belongs to a complete metric space of functions. Such minimal configurations have definite rotation number. We establish the existence of a set of functions, which is a countable intersection of open everywhere dense subsets of the space and such that for each element h of this set and each rational number α, the following prop...