We have measured xy coupling of the interaction point(I.P.) at KEKB. When a normal mode is excited by a shaker with tune frequency, the horizontal or vertical betatron oscillations can be measured by a turn-by-turn BPM in the laboratory coordinate system. A harmonic analysis has been performed to extract the xy coupling parameters at I.P. from the detected betatron oscillations. 1 IDEA AND FORM...

We provide a method for factoring all bounded ratios of the form det A(I1|I ′ 1) det A(I2|I ′ 2)/ det A(J1|J ′ 1) det A(J2|J ′ 2) where A is a totally positive matrix, into a product of more elementary ratios each of which is bounded by 1, thus giving a new proof of Skandera’s result. The approach we use generalizes the one employed by Fallat et al. in their work on principal minors. We also ob...

The simplest objects with non-commutative multiplication are 2×2 matrices with real entries. Such matrices of determinant one form a closed set under multiplication (since det(AB) = detA · detB), the identity matrix is among them and any such matrix has an inverse (since detA 6= 0). In other words those matrices form a group, the SL2(R) group [7]—one of the two most important Lie groups in anal...

NT DEET Professional Learning Policy defines Professional Learning as ‘opportunities or experiences that promote enhanced skills, knowledge, attributes, attitudes and behaviours of staff ‘ As we begin to describe the ways in which Professional Learning is evolving in our education system we increasingly focus on teacher learning that develops within a culture of collaboration and collective res...

Field bioassays were conducted to evaluate the effectiveness of different treatment combinations of permethrin-impregnated clothing and a new extended duration repellent formulation of deet against natural populations of mosquitoes in Islamabad, Pakistan. Tests were initiated 2-2 1/2 hours prior to sunset and volunteers who wore the topical repellent applied it 8 hours earlier. The most effecti...

The spatial repellency responses of Aedes aegypti (L.) to deet, dehydrolinalool and linalool were evaluated using a dual port olfactometer. In the absence of human attractant mixture, each of the three chemicals resulted in activation and/or orientation of mosquitoes to the chemical source. Linalool was the most attractive compound. In the presence of human attractant mixture, activation and/or...

We apply a heuristic method based on counting points over finite fields to the Poincaré center problem. We show that this method gives the correct results for homogeneous non linearities of degree 2 and 3. Also we obtain new evidence for Żo la̧dek’s conjecture about general degree 3 non linearities. Introduction In 1885 Poincaré asked when the differential equation y = − x+ p(x, y) y + q(x, y) =...

Consider a N × n random matrix Yn = (Y n ij ) where the entries are given by Y n ij = σij(n) √ n X ij , the X ij being centered, independent and identically distributed random variables with unit variance and (σij(n); 1 ≤ i ≤ N, 1 ≤ j ≤ n) being an array of numbers we shall refer to as a variance profile. We study in this article the fluctuations of the random variable log det (YnY ∗ n + ρIN ) ...

Cervixcancer (livmoderhalscancer) är en av de vanligaste cancerformerna bland kvinnor i hela världen. Genom att kvinnor deltar i gynekologisk cellprovskontroll (gck) kan antalet kvinnor som insjuknar eller dör i cervixcancer minska och därför har screeningprogram införts i många länder. Det har visat sig att de kvinnor som sällan eller aldrig går på gck, är de kvinnor som löper störst risk att ...