this study was designed to investigate the occupational stressors on teachers and their evaluation in schools firoozkooh city. in this study, statistical sample is 174 male and female teachers of schools in the education of firoozkooh so that they are selected using quota sampling and citing morgan as an example. in this study, data were analyzed using independent t-test. results of this study ...

The Λ baryons with a single heavy flavor which transfer the quark polarization, have been studied both theoretically and experimentally. The Ξ’s with two heavy constituents are well treated in quark-diquark model. In this work we study the production of triply heavy baryons in the perturbative QCD regime and calculate the fragmentation functions for Ωccc and Ωbbb in the c and b quark fragmentat...

Electron loss and capture processes arising in collisions of heavy low-charged ions with atoms and ions are the main charge-changing reactions in heavy-ion driven inertial fusion (HIDIF) [1]. However, at present time, virtually no experimental and theoretical data are available for removal processes involving fast heavy low-charged ions. In this work, the projectile-ionization (stripping) cross...

We describe a light-cone wave function formulation for hadroproduction of heavy-flavors at high energies. At moderate values of xF heavy-flavor production can be viewed as a diffractive excitation of heavy quark-antiquark Fock states, present in the interacting gluon from the projectile. The approach developed here is well suited to address coherence effects in heavyquark production from nuclei...

We describe a light-cone wave function formulation for hadroproduction of heavy-flavors at high energies. At moderate values of xF heavy-flavor production can be viewed as a diffractive excitation of heavy quark-antiquark Fock states, present in the interacting gluon from the projectile. The approach developed here is well suited to address coherence effects in heavyquark production from nuclei...

background: today, through various industrial processes, toxic heavy metals are released into aquatic environments that are harmful to the ecosystem. in the present investigation, removal of such contaminants from industrial wastewater is necessary. the purpose was made to extend an ecofriendly technology by using a bio carbon generated from sunflower waste biomass. methods: the impact of initi...

This paper studies the classical polling model under the exhaustive-service assumption; such models continue to be very useful in performance studies of computer/communication systems. The analysis here extends earlier work of the authors to the general case of nonzero switchover times. It shows that, under the standard heavy-traffic scaling, the total unfinished work in the system tends to a B...