Effectiveness of incentivised adherence and abstinence monitoring in buprenorphine maintenance : a pragmatic, randomised controlled trial

Acknowledgements The authors wish to thank the patients and staff at the National Rehabilitation Centre for their participation and to the NRC director general, Dr. Hamad Al Ghaferi, for his advice and support. Work on this study was included as part of H.E.'s doctoral studies and supervisor J.M. kindly acknowledge support from the Scholarship Office at the Ministry of Presidential Affairs, United Arab Emirates.Peer reviewedPublisher PD

A Study On Academic Staff’s Perceptions Of Internationalisation Of The Curriculum In University Of Technology And Applied Science, Salalah

The internationalisation of the curriculum (IoC) has been a significant trend in higher education across the globe. However, there is a dearth of empirical studies on this area of research in the Arab countries, including the Omani higher education context. Thus, this study was conducted to explore academic staff’s perceptions of curriculum internationalisation at: institutional, departmental and course levels at University of Technology and Applied Science (UTAS-Salalah), Salalah, Oman. Additionally, the study investigated how academic staff’s perceptions of curriculum internationalisation differ according to their years of experience in higher education, years of experience at UTAS-Salalah, and departments. The study also tried to explore academic staff’s perceptions of the three core levels of curriculum internationalisation (awareness, competence, and expertise) at UTAS-Salalah and identify challenges that academic staff encounter in the internationalisation of the curriculum at UTAS-Salalah. The two-phased explanatory sequential mixed-methods design was utilized to answer five research questions addressed by the study. Both quantitative and qualitative data were collected. While the quantitative data were collected using an adapted questionnaire, the qualitative data were collected through semi-structured interviews. The samples of the study included 267 academic lecturers in the quantitative phase and nine academic staff for the semi-structured interviews. The quantitative data were analysed using descriptive statistics and one-way ANOVA in SPSS, whereas the qualitative data were analysed using thematic analysi

Shisr 043 (IIIAB medium octahedrite): the first iron meteorite from the Oman desert

The iron meteorite Shişr 043 is a single mass of 8267 g found in the south Oman desert 42 km NE of the Shişr village. It is the first iron identified among the >1400 individual meteorites reported from Oman. The meteorite is a slightly elongated mass showing only minor rusting, a partially smooth and partially rough surface with octahedral cleavage, and a partially preserved metallic fusion crust typically 0.75 mm thick. The undeformed Widmanstätten pattern with a mean kamacite bandwidth of 1.0 +/- 0.1 mm (n = 97) indicates structural classification as a medium octahedrite. From the bulk composition, Ni = 8.06 wt%, Ga = 18.8 ppm, Ge = 37.25 ppm, and Ir = 3.92 ppm, the meteorite is classified as IIIAB, the most common group of iron meteorites. The cosmic-ray exposure (CRE) age based on 3He, 21Ne, 38Ar concentrations and 10Be-21Ne, 26Al-21Ne, and 36Cl-36Ar ratios is 290 +/- 20 Ma. This age falls within the range observed for type IIIAB iron meteorites, but does not coincide with the main cluster. The cosmogenic noble gas and radionuclide data indicate that Shişr 043 had a relatively small preatmospheric mass. The low degree of weathering is consistent with a young terrestrial age of <10,000 years based on the saturated 41Ca concentration. Shişr 043 is not paired with any of the other eight known iron meteorites from the Arabian Peninsula.The Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform February 202

Mössbauer Study of Weathered H-meteorite from the Desert of Oman

A number of meteorites from the desert of Oman, classified as H-chondrites, with known and unknown ages, were studied by using 57Fe Mössbauer spectroscopy to determine their Fe3+-bearing compositions. Mössbauer spectra measured at 78 K were composed of paramagnetic doublets superimposed on magnetic sextets. The doublets are assigned to the silicate minerals olivine and pyroxene and Fe3+ phases. The magnetic sextets in most samples showed the presence of at least three magnetic phases, namely troilite, magnetite and kamacite, which commonly exist in most ordinary chondrites. The relative amounts (area %) of Fe3+ in the known-age meteorites, determined from the Mössbauer spectra, were plotted against their terrestrial ages. The plot was used to estimate the terrestrial ages of meteorites with unknown terrestrial age

The Jiddat al Harasis 073 strewn field, Sultanate of Oman

The recently discovered Jiddat al Harasis (JaH) 073 strewn field is the largest found so far in the Sultanate of Oman, covering an area of 19 x 6 km. The 3463 single stones collected range in weight from 52.2 kg down to <1 g (total weight 600.8 kg) and show a pronounced mass sorting. The strewn field shape can be approximated by a NW-SE-oriented ellipsoid, indicating an atmospheric entry from SE at a low angle relative to the surface. The meteorite belongs to the L6 ordinary chondrite group and shows S4 average shock grade. Smaller stones generally show a higher weathering grade resulting in a spread from W2 and W4. Enhanced weathering of the stones causing fragmentation after the fall is observed in sandy depressions. Five 14C measurements on stones of variable size and weathering grade yielded 14C from 3.8 to 49.9 dpm/kg. Three samples give a 14C/10Be age consistent with about 14.4 ka. For two samples the cosmogenic, trapped, and radiogenic noble gases were measured. The ratio of the 4He and 40Ar gas retention ages of 0.29 +/- 0.10 and that of the 3He and 21Ne cosmic ray exposure ages of 0.36 +/- 0.08 Ma indicate that JaH 073 experienced a complex exposure history and lost 4He and 40Ar due to a major collision. Fragmentation statistics indicate a single major atmospheric disruption and an originally relatively spherical shape of the object. Assuming the material collected represents the majority of fallen mass, and 90-99% of the original weight was lost by ablation, the pre-atmospheric minimum radius of the meteoroid with density 3.4 g cm^(-3) would have been at least 75 cm.The Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform February 202

Pinpointing the source of a lunar meteorite: implications for the evolution of the moon

The lunar meteorite Sayh al Uhaymir 169 consists of an impact melt breccia extremely enriched with potassium, rare earth elements, and phosphorus [thorium, 32.7 parts per million (ppm); uranium, 8.6 ppm; potassium oxide, 0.54 weight percent], and adherent regolith. The isotope systematics of the meteorite record four lunar impact events at 3909 ± 13 million years ago (Ma), 2800 Ma, 200 Ma, and <0.34 Ma, and collision with Earth sometime after 9.7 ± 1.3 thousand years ago. With these data, we can link the impact-melt breccia to Imbrium and pinpoint the source region of the meteorite to the Lalande impact crater

From rifting to spreading in the eastern Gulf of Aden : a geophysical survey of a young oceanic basin from margin to margin

International audienc

Arabia-Somalia plate kinematics, evolution of the Aden-Owen-Carlsberg triple junction, and opening of the Gulf of Aden

New geophysical data collected at the Aden-Owen-Carlsberg (AOC) triple junction between the Arabia, India, and Somalia plates are combined with all available magnetic data across the Gulf of Aden to determine the detailed Arabia-Somalia plate kinematics over the past 20 Myr. We reconstruct the history of opening of the Gulf of Aden, including the penetration of the Sheba Ridge into the African continent, and the evolution of the triple junction since its formation.Qraalkaan waxaa lagu lafagurayaa arrimo joolojiyeed oo la xiriira Qooriga Cadmeed iyo degaannada la xiriira.In questo documento tutti i dati magnetici relativi al Golfo di Aden a disposizione sono stati combinati con nuovi dati geofisici, raccolti nella tripla giunzione Aden-Owen-Carlsbegr (AOC), punto in cui si incontrano i confini delle tre placche tettoniche tra Arabia, India e Somalia, con lo scopo di determinare il dettagliato movimento delle placche negli ultimi 20 milioni di anni. Viene qui ricostruita la storia dell'origine del Golfo di Aden, inclusa la penetrazione della dorsale di Sheba nel continente africano, e analizzata l'evoluzione della tripla giunzione fin dalla sua formazione