A gamma-ray burst fireball is likely to contain an admixture of neutrons. Inelastic collisions between differentially streaming protons and neutrons in the fireball produce nu(&mgr;) (nu;(&mgr;)) of approximately 10 GeV as well as nu(e) (nu;(e)) of approximately 5 GeV, which could produce approximately 7 events/year in km(3) detectors, if the neutron abundance is comparable to that of protons. ...

A bstract The NA62 experiment reports the branching ratio measurement $$ \mathrm{BR}\left({K}^{+}\to {\pi}^{+}\nu \overline{\nu}\right)=\left({10.6}_{-3.4}^{+4.0}\left|{}_{\mathrm{stat}}\right.\pm {0.9}_{\mathrm{syst}}\right)\times {10}^{-11} BR K + </...

In present work forced convection flow in a channel partly filled with a porous media under asymmetric heat flux boundary condition has been investigated. The porous material is distributed on the one wall. Darcy–Brinkman and LTNE model have been assumed in order to solve momentum and energy equations, respectively. Fully developed conditions are considered in order to solve velocity and the te...

Nude (Nu/Nu) and heterozygous (NU/+) mice were infected with Actinomyces israelii serotype I by either intranasal instillation or intravenous injection. Lung clearance data and 50% lethal dose values indicated that T-lymphocytes were not necessary for pulmonary clearance or prevention of systemic actinomycosis. However, T-lymphocyte deficiency may play a role in the localized cervicofacial form...

Athymic B A L B / c ( N u / N u ) mice died at 7-13 days after inoculation ( D A I ) of P lasmodium berghei NK65 , whereas their heterozygous ( N u / + ) l i t termates died at 7-8 D A I . N u d e ( N u / N u ) mice , reconsti tuted w i th 2 x 10 7 splenocytes f r o m unin­ fected heterozygous ( N u / + ) l i t termates at 20 days before parasite inoculation ( D B I ) , died about 2 days earl i...

"Breathing" metal-organic frameworks (MOFs) are an emerging class of soft porous crystals (SPCs) with potential for high working capacity for gas storage applications. However, most breathing MOFs have low stability and/or low surface area. Here we report a water-stable, high surface area, breathing MOF of ftw topology, NU-1105. While Zr6-oxo clusters as nodes introduce water stability in NU-11...

We consider the dynamics of polymer translocation out of confined environments. Analytic scaling arguments lead to the prediction that the translocation time scales like tau approximately N(beta+nu(2D))R(1+(1-nu(2D))/nu) for translocation out of a planar confinement between two walls with separation R into a three-dimensional (3D) environment, and tau approximately N(beta+1)R for translocation ...

We consider a dynamical system with state space M, a smooth, compact subset of some R(n), and evolution given by T(t), x(t)=T(t)x, x in M; T(t) is invertible and the time t may be discrete, t in Z, T(t)=T(t), or continuous, t in R. Here we show that starting with a continuous positive initial probability density rho(x,0)>0, with respect to dx, the smooth volume measure induced on M by Lebesgue ...

Management of natural ecosystems, like forests, has several objectives such as wood production, sustainability of ecological systems, preserving aestheti,c and cultural or psychological satisfaction. This management is especially essential in dry regions with sensitive biodiversity, like Iran. The aim of this research is to elaborate a management scheme for developing a sustainable tourism plan...