98 research outputs found

    Developing a Performance Appraisal System in the Directorate of General Health Services, the Sultanate of Oman: A Participatory Action Research Project

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    The performance appraisal is a tool for professional development in the organization. It has administrative, developmental and strategic roles. This research is conducted in the Directorate General of Health Services in the Ministry of Health in the Sultanate of Oman. The primary aims of this thesis project are identifying the barriers to effective utilization of the performance appraisal system as a tool for professional development. In addition, to explore the factors that prevented evaluators from implementing the open performance appraisal interview. Another objective of this action research is to enable the stakeholders to have a sense of the issues of the performance appraisal system. The research design consists of a combination of case study and participatory action research. The sample was purposeful. The data collection was conducted using face to face interviews with supervisors that included 20 directors and section heads and two homogenous focus group interviews with subordinates consisting of 6 administrative staff and 8 staff nurses. The data were analyzed by thematic analysis and ten themes emerged from the data that achieved the research objectives and answer the research questions. The findings of the study consist of actionable findings that can provide a holistic picture of the research topic that encourage the project team members to build on the findings for developing the new performance appraisal system that can achieve professional development. The main finding of the study is that there is evidence for lack of a clear system for the management of performance appraisal. The implication of the study for theory and practice is that the knowledge of organization‟s stakeholders about the performance appraisal has changed and now they have recognized the importance of using it for professional development. The study has highlighted the need for facilitating all necessary resources in the organization for and establishing collaboration among all the departments in the management of the performance appraisal in order for the organization to implement performance appraisal effectively. Ethical consideration was maintained before, during and after research. The ethical approval was obtained from University of Liverpool and local ethical committee in addition to gate keeper‟s permission and access. One limitation of the study is the scholar practitioner‟s inability to make holistic change in the content of the performance appraisal report as it is a political issue and as the rules and regulations of the performance appraisal is under the control of the Ministry of Civil Service. Also, it was challenging for the researcher to create many different performance appraisal items of measurement to meet the demands of each of the departments in the organization. Another limitation is not test the new performance appraisal system by piloting it due to time constraints imposed by thesis submission requirements. Further studies are required to investigate the impact of implementing the new performance appraisal system and to create varied items of performance appraisal measurement to meet each category of employees in the Ministry of Health organization

    The Areas of Teacher Research in the Sultanate of Oman and the Reality of Benefiting from Them

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    The present study aims at understanding the reality of teacher research in the Sultanate of Oman, how to benefit from such research in the improvement of teacher development and the teaching-learning process, who should do that, as well as informing current literature with updates on teacher research, a topic that is not yet given adequate attention in Oman. The study implemented a qualitative approach for data collection and analysis of 50 researches done by school-teachers and 22 interviews with research teachers, school head-teachers and educational specialists. The study revealed that teachers are interested in doing research. Teachers, school administration and supervisors benefit from teacher research. Teachers use their own ways to take advantage from their own research and to share it with other teachers and help them value its results and recommendations. The study recommends that a culture of teacher research should be founded in schools, teachers should be supported to do research and more research should be done to explore the extent to which teacher research meets the  criteria of educational research so that it can be trustworthy and useable for schooling improvement

    Pathology-MRI correlations in diffuse low-grade epilepsy associated tumors

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    It is recognized that IDH mutation negative, low-grade epilepsy associated tumors (LEAT) can show diffuse growth patterns and lack the diagnostic hallmarks of either classical dysembryoplastic neuroepithelial tumors (DNT) or typical ganglioglioma. “Nonspecific or diffuse DNT” and more recently “polymorphous low-grade neuroepithelial tumor of the young” have been terms used for these entities. There are few reports on the MRI recognition of these diffuse glioneuronal tumors (dGNT), which is important in planning the extent of surgical resection. In 27 LEATs T1, T2, FLAIR, and postcontrast T1 MRI were evaluated and the pathology reviewed, including immunostaining for NeuN, CD34, MAP2, and IDH1. Each case was then independently classified by pathology or MRI as simple DNT, complex DNT, or dGNT. There was agreement in 23/27 (85%; Kappa score 0.62; p < 0.01). In 4 cases, there was discrepancy in the diagnosis of simple versus complex DNT but 100% agreement achieved for dGNT. DNT showed significantly more expansion of the cortex, cystic change and ventricle extension than dGNT. dGNT showed significantly more subcortical T2w hyperintensity and focal cortical atrophy which correlated on pathology with CD34 expression, cortical neuronal loss and white matter rarefaction. There was no distinct cortical dysplasia component identified by MRI or pathology in any case. This study highlights that dGNT can be reliably discriminated on MRI from DNT

    Microwave-Assisted Adsorptive Desulfurization of Model Diesel Fuel Using Synthesized Microporous Rare Earth Metal-Doped Zeolite Y

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    The microwave-assisted adsorptive desulfurization of model fuel (thiophene in n-heptane) was investigated using a synthesized rare earth metal-doped zeolite Y (RE Y). Crystallinity of the synthesized zeolite was 89.5%, the silicon/aluminium (Si/Al) molar ratio was 5.2, the Brunauer–Emmett–Teller (BET) surface area was 980.9 m2/g, and the pore volume and diameter was 0.3494 cm3/g and 1.425 nm, respectively. The results showed that the microwave reactor could be used to enhance the adsorptive desulfurization process with best efficiency of 75% at reaction conditions of 100 °C and 15 minutes. The high desulfurization effect was likely due to the higher efficiency impact of microwave energy in the interaction between sulfur in thiophene and HO-La(OSiAl)

    Univalence criteria for linear fractional differential operators associated with a generalized Bessel function

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    In this paper our aim is to establish some generalizations upon the sufficient conditions for linear fractional differential operators involving the normalized forms of the generalized Bessel functions of the first kind to be univalent in the open unit disk as investigated recently by [{sc E. Deniz, H. Orhan, H.M. Srivastava}, {it Some sufficient conditions for univalence of certain families of integral operators involving generalized Bessel functions}, Taiwanese J. Math. {bf 15} (2011), No. 2, 883-917] and [{sc \u27A. Baricz, B. Frasin}, {it Univalence of integral operators involving Bessel functions}, Appl. Math. Letters {bf 23} (2010), No. 4, 371--376]. Our method uses certain Luke\u27s bounding inequalities for hypergeometric functions p+1Fp{}_{p+1}F_p and pFp{}_pF_p

    Pathology–MRI Correlations in Diffuse Low-Grade Epilepsy Associated Tumors

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    It is recognized that IDH mutation negative, low-grade epilepsy associated tumors (LEAT) can show diffuse growth patterns and lack the diagnostic hallmarks of either classical dysembryoplastic neuroepithelial tumors (DNT) or typical ganglioglioma. “Nonspecific or diffuse DNT” and more recently “polymorphous low-grade neuroepithelial tumor of the young” have been terms used for these entities. There are few reports on the MRI recognition of these diffuse glioneuronal tumors (dGNT), which is important in planning the extent of surgical resection. In 27 LEATs T1, T2, FLAIR, and postcontrast T1 MRI were evaluated and the pathology reviewed, including immunostaining for NeuN, CD34, MAP2, and IDH1. Each case was then independently classified by pathology or MRI as simple DNT, complex DNT, or dGNT. There was agreement in 23/27 (85%; Kappa score 0.62; p < 0.01). In 4 cases, there was discrepancy in the diagnosis of simple versus complex DNT but 100% agreement achieved for dGNT. DNT showed significantly more expansion of the cortex, cystic change and ventricle extension than dGNT. dGNT showed significantly more subcortical T2w hyperintensity and focal cortical atrophy which correlated on pathology with CD34 expression, cortical neuronal loss and white matter rarefaction. There was no distinct cortical dysplasia component identified by MRI or pathology in any case. This study highlights that dGNT can be reliably discriminated on MRI from DNT

    A distinctive marginal marine palynological assemblage from the Přídolí of northwestern Saudi Arabia

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    A rare occurrence of a rich and diverse palynological assemblage from the Tawil Formation is described from well JLMD-EW-8 in northwestern Saudi Arabia. The composition of this assemblage strongly indicates a middle Přídolí age. The assemblage encountered contains very characteristic chitinozoans, acritarchs, tasmanitids, freshwater algae, scolecodonts, eurypterid cuticle and other organic remains. Land-derived miospores are also common and two new cryptospore species (Cymbohilates jalamidensis and Gneudnaspora sordida) are herein formally described. Most taxa of taxonomic interest and useful for regional and intercontinental correlation are illustrated. The palaeogeographic distribution of this assemblage is also discussed as organic-walled microphytoplankton, chitinozoans and miospores encountered in the studied samples correlate well with similar assemblages from various Algerian, Libyan, and Ibero-armorican localities (i.e. Ibarmaghian regions). This corresponds to what is considered as a transgressive middle Přídolí event in the Algerian Sahara, with non-marine intervals bracketing this brief marine sea-level rise. This event is likely to have extended into all of north Gondwana, including Arabia, and can be correlated to the S50 Maximum Flooding Surface from the sequence stratigraphic framework defined in the Neftex Geodynamic Earth Model

    Dynamics of Anti-S IgG Antibodies Titers after the Second Dose of COVID-19 Vaccines in the Manual and Craft Worker Population of Qatar

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    There is limited seroepidemiological evidence on the magnitude and long-term durability of antibody titers of mRNA and non-mRNA vaccines in the Qatari population. This study was conducted to generate evidence on long-term anti-S IgG antibody titers and their dynamics in individuals who have completed a primary COVID-19 vaccination schedule. A total of 300 male participants who received any of the following vaccines BNT162b2/Comirnaty, mRNA-1273, ChAdOx1-S/Covishield, COVID-19 Vaccine Janssen/Johnson, or BBIBP-CorV or Covaxin were enrolled in our study. All sera samples were tested by chemiluminescent microparticle immunoassay (CMIA) for the quantitative determination of IgG antibodies to SARS-CoV-2, receptor-binding domain (RBD) of the S1 subunit of the spike protein of SARS-CoV-2. Antibodies against SARS-CoV-2 nucleocapsid (SARS-CoV-2 N-protein IgG) were also determined. Kaplan–Meier survival curves were used to compare the time from the last dose of the primary vaccination schedule to the time by which anti-S IgG antibody titers fell into the lowest quartile (range of values collected) for the mRNA and non-mRNA vaccines. Participants vaccinated with mRNA vaccines had higher median anti-S IgG antibody titers. Participants vaccinated with the mRNA-1273 vaccine had the highest median anti-S-antibody level of 13,720.9 AU/mL (IQR 6426.5 to 30,185.6 AU/mL) followed by BNT162b2 (median, 7570.9 AU/mL; IQR, 3757.9 to 16,577.4 AU/mL); while the median anti-S antibody titer for non-mRNA vaccinated participants was 3759.7 AU/mL (IQR, 2059.7–5693.5 AU/mL). The median time to reach the lowest quartile was 3.53 months (IQR, 2.2–4.5 months) and 7.63 months (IQR, 6.3–8.4 months) for the non-mRNA vaccine recipients and Pfizer vaccine recipients, respectively. However, more than 50% of the Moderna vaccine recipients did not reach the lowest quartile by the end of the follow-up period. This evidence on anti-S IgG antibody titers should be considered for informing decisions on the durability of the neutralizing activity and thus protection against infection after the full course of primary vaccination in individuals receiving different type (mRNA verus non-mRNA) vaccines and those with natural infection.The World Health Organization (WHO) - grant number [2021/1183356-0]
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