The locus of all points in the complex plane of the dielectric function ?[?(r) + j?(i) = |?| exp(jtheta)], that represent all possible interfaces characterized by the same pseudo-Brewster angle theta(p)B of minimum p reflectance, is derived in the polar form: |?| = l cos(zeta/3), where l = 2(tan(2)Phi(p)B)k, zeta = arccos(- costheta cos(2)Phi(p)B/k(3)), and k = (1 - 2/3 sin(2)Phi(p)B)(1/2). Fam...

We study the cutting and packing C&P problems in two dimensions by using phi-functions. Our phi-functions describe the layout of given objects; they allow us to construct a mathematical model inwhich C&P problems become constrained optimization problems. Herewe define for the first time a complete class of basic phi-functions which allow us to derive phi-functions for all 2D objects that are fo...

Caulobacter phage phi Cr30T, a temperature-sensitive derivative of the lytic, generalized transducing phage phi Cr30, was isolated as a double temperature-sensitive recombinant in a cross between phi Cr30ts1 and phi Cr30ts2, phi Cr30T mediated generalized transduction of Caulobacter crescentus at frequencies comparable to those of phi Cr30 and eliminated the requirement for irradiation of trans...

In this note, we show that cite[Corollary 3.2]{sad} is not always true. In fact, we characterize essential left $phi$-contractibility of the group algebras in terms of compactness of its related locally compact group. Also, we show that for any compact commutative group $G$, $L^{2}(G)$ is always essentially left $phi$-contractible. We discuss the essential left $phi$-contractibility of some Fou...

we investigated contraction to noradrenaline (na) and kc1 and sensitivity of na at the level of larger vessels (thoracic aorta and vena cava; left renal artery and left renal vein; lateral saphenous artery and lateral saphenous vein and finally central ear artery and marginal ear vein) in a model devised to mimic heart failure. the model presented here is the rabbit coronary ligation model in w...

New low-lying excitations are observed by inelastic light scattering at filling factors nu=p/(phip+/-1) of the fractional quantum Hall regime with phi=4. Coexisting with these modes throughout the range nu < or =1/3 are phi=2 excitations seen at 1/3. Both phi=2 and phi=4 excitations have distinct behaviors with temperature and filling factor. The abrupt first appearance of the new modes in the ...

The purpose of the present study was to test the hypothesis that a preceding contractile period in isolated single skeletal muscle fibers would attenuate the decrease in pH during an identical, subsequent contractile period, thereby reducing the rate of fatigue. Intact single skeletal muscle fibers (n = 9) were isolated from Xenopus lumbrical muscle and incubated with the fluorescent cytosolic ...

The contribution of Cl-/HCO3- exchange to intracellular pH (pHi) regulation in cultured chick heart cells was evaluated using ion-selective microelectrodes to monitor pHi, Na+ (aiNa), and Cl- (aiCl) activity. In (HCO3- + CO2)-buffered solution steady-state pHi was 7.12. Removing (HCO3- + CO2) buffer caused a SITS (0.1 mM)-sensitive alkalinization and countergradient increase in aiCl along with ...