The single-particle nuclear potential is intrinsically nonlocal. In this paper, we consider nonlocalities which arise from the many-body and fermionic nature of the nucleus. We investigate the effects of nonlocality in the nuclear potential by developing the Green’s function for nonlocal potentials. The formal Green’s function integral is solved analytically in two different limits of the wavel...

To evaluate the potential antimicrobial activity, Aloe vera and Opuntia ficus-indica plants were collected from Jeddah, Al Baha, Taif areas of Kingdom Saudi Arabia (SA), their ethanolic extracts screened by gas chromatography mass spectrometry (GC–MS/MS). The di(2-propylpentyl) ester hexadecenoic acid ethyl phthalic most abundant compounds in A. extract, 1-(benzyloxy)-3,5-dinitrobenzene phenol,...

This exploratory paper investigated female gifted secondary school students’ needs for English Learning in Saudi Arabia. It has addressed a gap the literature regarding analysis of students tries to answer question: What are those students? The professional learning were collected through need questionnaire Riyadh, Jeddah, and Al-Baha data techniques descriptive statistics frequency count, perc...

Bone anchored hearing implants/aids (BAHI/BAHA) utilise a bone anchored hearing aid system to assist people with conductive hearing loss who cannot use traditional hearing aids. It was introduced in the 1970 ́s in the field of dentistry by Swedish Professor Per-Inge Brånemark who implanted titanium dental fixtures in the jaw. He then proceeded to develop titanium implants to anchor hearing aids ...

The Hamiltonian describing fermion pair production from an arbitrarily time-varying electric field in two dimensions is studied using a group-theoretic approach. We show that this Hamiltonian can be encompassed by two, commuting SU(2) algebras, and that the twodimensional problem can therefore be reduced to two one-dimensional problems. We compare the group structure for the two-dimensional pro...

BACKGROUND Collapsed ear canals typically occur when an outside force, such as a headset for audiometric testing, is present. However, when a collapsed ear canal occurs without external pressure, this creates a challenge not only for performing audiometric testing but also for coupling a hearing aid to the ear canal. PURPOSE This case report highlights the challenges associated with fitting a...

Conventional external hearing aids can be generally subdivided into air-conduction hearing aids and bone-conduction hearing aids. Air-conduction hearing aids require the use of ear molds, which may be problematic in patients with chronic middle ear and ear canal infections, atresia of the external canal, or an ear canal that cannot accommodate an ear mold. Bone-conduction hearing aids function ...