In aviation, aircraft ground handling defines the servicing of an aircraft while it is on the ground and (usually ) parked at a terminal gate of an airport. Ground handling operations include many activities: passenger handling, ground transport, assistance in blocking the aircraft and delivery of required equipment, loading and unloading of the aircraft, including provision and operation of re...

background: oral contraceptive pills effectiveness is lower in actual use than in clinical trials. the views of a group of married iranian women were sought as a step toward improving the enhanced use of contraceptive pills. methods: two focus groups of current pill users (n=13) and two focus groups of women not currently taking the pills (n=14) were held. leaders trained facilitators; themes w...

Let Fq be a finite field of characteristic p having q elements, where q = p and p ≥ 5. Let SL(2,Z3) be the special linear group of 2 × 2 matrices with determinant 1 over Z3. In this note we establish the structure of the unit group of FqSL(2,Z3). 2010 MSC: 16U60, 20C05

In [9] the author proved that in characteristic 0 the jacobian J(C) = J(Cf ) of a hyperelliptic curve C = Cf : y 2 = f(x) has only trivial endomorphisms over an algebraic closure Ka of the ground field K if the Galois group Gal(f) of the irreducible polynomial f ∈ K[x] is “very big”. Namely, if n = deg(f) ≥ 5 and Gal(f) is either the symmetric group Sn or the alternating group An then the ring ...

Abstract Every continuous-time flow on a topological space has associated to it Koopman operator, which operates by time-shifts various spaces of functions, such as C r , L 2 or functions bounded variation. An eigenfunction the vector field (and thus for operator) can be viewed an S 1 -valued function, also plays role semiconjugacy rigid rotation . This notion eigenfunctions will generalized Li...

Coxeter-Petrie complexes naturally arise as thin diagram geometries whose rankthree residues contain all of the dual forms of a regular algebraic mapM. Corresponding to an algebraic map is its classical dual, which is obtained simply by interchanging the vertices and faces, as well as its Petrie dual, which comes about by replacing the faces by the so-called Petrie polygons. G. A. Jones and J. ...

Introduction: This single-center, prospective, randomized, double-blind study compares the effect of intrathecal fentanylbupivacaine and tramadol-bupivacaine on the onset and duration of sensory and motor blockade, as well as postoperative analgesia in lower abdominal surgeries. Materials and methods: Patients of either sex, aged 18 to 60 years, American Society of Anesthesiologists (ASA) grade...