PbTe mesa diodes were fabricated from a series of p−n junctions grown on BaF2 substrates. For this series, the hole concentration was kept constant at 1017 cm−3 and the electron concentration varied between 1017 and 1019 cm−3. Capacitance versus voltage analysis revealed that for n > 1018 cm−3, a one-sided abrupt junction is formed. The direct and reverse branches of the current versus voltage ...

We generalize the P, P0, R0 properties for a nonlinear function associated with the standard nonlinear complementarity problem to the setting of generalized nonlinear complementarity problem (GNCP). We prove that if a continuous function has the order P0 and R0 properties then all the associated GNCPs have solutions.

In this paper we introduce a concept of the R0-condition for the extended homogeneous complementarity problem, and show that the upper semi-continuity of the solution map is equivalent to the R0-condition in the extended homogeneous complementarity problem. AMS subject classifications: 90C33

PURPOSE While curative resection is the only chance of cure in pancreatic cancer, controversies exist about the impact of surgical margin status on survival. Non-standardized pathologic report and different criteria on the R1 status made it difficult to implicate adjuvant therapy after resection based on the margin status. We evaluated the influence of resection margins on survival by meta-anal...

In this paper, we consider a deterministic malaria transmission model with standard incidence rate and treatment. Human population is divided into susceptible, infectious and recovered subclasses, and mosquito population is split into susceptible and infectious classes. It is assumed that, among individuals with malaria who are treated or recovered spontaneously, a proportion moves to the recov...

Testing symptomatic individuals for a disease can deliver treatment resources, if tests’ results turn positive, which speeds up their treatment and might also decrease individuals’ contacts to other ones. An imperfect test, however, might incorrectly consider susceptible individuals to be infected (false positives). In this case, testing reduces the epidemic in the expense of potentially miscla...

To understand the impact of spatial heterogeneity of environment and movement of individuals on the persistence and extinction of a disease, a spatial SIS reaction-diffusion model is studied, with the focus on the existence, uniqueness and particularly the asymptotic profile of the steadystates. First, the basic reproduction number R0 is defined for this SIS PDE model. It is shown that if R0 < ...

We show that there exists a Boolean function F which gives the following separations among deterministic query complexity (D(F )), randomized zero error query complexity (R0(F )) and randomized one-sided error query complexity (R1(F )): R1(F ) = Õ( √ D(F )) and R0(F ) = Õ(D(F ))3/4. This refutes the conjecture made by Saks and Wigderson that for any Boolean function f , R0(f) = Ω(D(f))0.753... ...

Effects of temporal density variation and spherical convergence on the nonlinear bubble evolution of single-mode, classical Rayleigh-Taylor instability are studied using an analytical model based on Layzer's theory [Astrophys. J. 122, 1 (1955)]. When the temporal density variation is included, the bubble amplitude in planar geometry is shown to asymptote to integral(t)U(L)(t')rho(t')dt'/rho(t),...

The Ebola virus disease (EVD) epidemic in West Africa in 2013-2015 spread heterogeneously across the three hardest-hit countries Guinea, Liberia and Sierra Leone and the estimation of national transmission of EVD provides little information about local dynamics. To investigate district-level transmissibility of EVD, we applied a statistical modelling approach to estimate the basic reproduction ...