An-Najah National University

About: An-Najah National University is a education organization based out in Nablus, Palestinian Territory. It is known for research contribution in the topics: Population & Adsorption. The organization has 1857 authors who have published 2607 publications receiving 68226 citations. The organization is also known as: An Najah National University.

Synthesis of Nano-sized Sulfur Nanoparticles and their Antibacterial Activities

Abstract: Sulfur nanoparticles (S-NPs) were prepared in this work by precipitation method using sodium thiosulphate and tetraoctylammonium bromide surfactants in conc. hydrochloric acid media. The sizes and shapes of S-NPs were confirmed by scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. Broth micro-dilution method was applied to determine antibacterial activity of S-NPs against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa reference strains. S-NPs exhibited antimicrobial activity (MIC = 5.47µg/ml) against Staphylococcus aureus strain (Gram-positive bacterium). On the other hand, no antimicrobial activity was detected against Gram-negative bacteria isolates (Escherichia coli and Pseudomonas aeruginosa) at 0.68 to 800 µg/ml.

Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector

Abstract: A search for the exclusive decays of the Higgs and Z bosons to a ϕ or ρ meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of up to 35.6 fb$^{−1}$ collected at $ \sqrt{s}=13 $ TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95% confidence level were obtained on the branching fractions of the Higgs boson decays to ϕγ and ργ of 4.8 × 10$^{−4}$ and 8.8 × 10$^{−4}$, respectively. The corresponding 95% confidence level upper limits for the Z boson decays are 0.9 × 10$^{−6}$ and 25 × 10$^{−6}$ for ϕγ and ργ, respectively.

Energy states of the Hulthen plus Coulomb-like potential with position-dependent mass function in external magnetic fields

Abstract: We need to solve a suitable exponential form of the position-dependent mass (PDM) Schr?dinger equation with a charged particle placed in the Hulthen plus Coulomb-like potential field and under the actions of the external magnetic and Aharonov?Bohm (AB) flux fields. The bound state energies and their corresponding wave functions are calculated for the spatially-dependent mass distribution function of interest in physics. A few plots of some numerical results with respect to the energy are shown.