Plant-soil feedback and plant invasion: effect of soil conditioning on native and invasive Prosopis species using the plant functional trait approach.

Introduction: Invasive species have been identified as a major threat to native biodiversity and ecosystem functioning worldwide due to their superiority in spread and growth. Such superiority is explained by the invasional meltdown phenomena, which suggests that invasive species facilitate the establishment of more invasive species rather than native species by modifying the plant-soil feedback (PSF). Methods: We conducted a two-phase plant-soil feedback experiment using the native Prosopis cineraria and the invasive Prosopis juliflora in Oman. Firstly, we conditioned the soil by planting seedlings of native species, invasive species, native and invasive species "mixed", and unconditioned soil served as a control. Secondly, we tested the feedback of these four conditioned soil on the two species separately by measuring the productivity (total biomass) and the performance in the form of plant functional traits (plant height, specific leaf area (SLA), leaf nitrogen content (Nmass), leaf carbon content (Cmass) and specific root length (SRL) of native and invasive species as well as the nutrient availability in soil (soil organic carbon (SOC) and soil total nitrogen (STN)). Results and discussion: We found that the native species produced more biomass, best performance, and higher SOC and STN when grown in soil conditioned by native species, additionally, it gave lower biomass, reduced performance, and lower SOC and STN when grown in the soil conditioned by invasive and mixed species. These results suggest negative PSF for native species and positive PSF for invasive species in the soil conditioned by invasive species, which can be considered as red flag concerning the restoration of P. cineraria as an important native species in Oman, as such positive PSF of the invasive species P. juliflora will inhibit the regeneration of P. cineraria.

Epidemiological Characteristics of 69,382 COVID-19 Patients in Oman.

OBJECTIVES: To describe the epidemiological characteristics of the first 69,382 patients with COVID-19 infection in Oman. METHODS: A retrospective case series study of patients diagnosed with SARS-CoV-2 infection in Oman from 24 February to 23 July 2020. The data were obtained from the National surveillance COVID-19 network. RESULTS: The overall mean age of patients was 34 (± 14) years, 74% (n = 51,391) were males, 40,859 (59%) were Omani citizens, and 28,523 (41%) were foreign-born individuals. The most common symptoms at presentation were fever 50% (n = 34,600), cough 46% (n = 32,062), sore throat 46% (n = 31,953) and shortness of breath (SOB) 35% (n = 24,567). Overall, 8,960 (12.9%) patients required hospitalization with 1189 (13.3%) individuals requiring admission to the intensive care unit (ICU) and mechanical ventilation (MV). Patients hospitalized with COVID-19 infection were mostly Omani nationals and males between 30 and 39 years old (p < 0.001). The mortality rate was 7.7 per 100,000 population (n = 359) with rates of 9.4 (n = 278) and 4.8 (n = 81) deaths per 100,000 population in Omani nationals and foreign-born individuals, respectively. Females hospitalized with COVID-19 had a mean age of 64 (± 18) years versus a mean age of 55 (± 17) years in males. Mean age of patients with COVID-19-related mortality was 58 (± 18) years with significant differences in mean age between females and males 64 (± 18) versus 55 (± 17) years, respectively. CONCLUSIONS: Young Omani males accounted for the highest incidence of COVID-19 infection and hospitalization, while mortality rates were higher among males and the older age (> 50 years). Identifying the epidemiological characteristics and outcomes of COVID-19-infected patients is essential for developing targeted intervention strategies and preparing for the resurgence of anticipated second and third waves of this pandemic.

Assessment of Key Performance Indicators of the Primary Health Care in Oman: A Cross-Sectional Observational Study.

OBJECTIVE: Effective primary health care (PHC) is the key to attaining universal health coverage. The key performance indicators (KPIs), is a component of quality improvement in the PHC service sector that provides feedback to inform and better public service delivery and promoting accountability. We assessed the current performance of PHC service by using KPIs to identify the possible challenges that necessitate being confronted, highlight the lessons learnt, and propose steps towards improvements. METHODS: We conducted a cross-sectional observational study across 12 PHC centers in 6 governorates in Oman during the period of June 2017 to June 2018. Secondary data from the computerized medical records of the PHC centers on six key indicators, accessibility, workload, outcomes, timeliness, satisfaction, and safety were analysed to assess the performance of PHC service and to identify challenges confronted and propose steps towards further service improvement. RESULTS: The mean overall KPIs scores across the ten PHC centers were 174.5 (SD: 9.80) or 67.01%. The overall scores were normally distributed with a median score of 175 (IQR: 171-181). The lowest percentage score was obtained by Al Qabil (61.35%) with the highest mark being at Wadi Kabir (70.54%). The mean score across all KPIs was 3.84 (SD:0.94) with a median score of 3.9 (IQR: 3.43-4.5). Of the six KPI components, safety (4.85), satisfaction (4.67), timeliness (4.44), and accessibility (4.31) had the highest performance scores, whilst workload (4.15) and outcomes (3.75) lagged behind. CONCLUSIONS: Performance across the KPIs exhibited a considerable variation between facilities, with workload and outcome performing lower than other components. The findings of this study offered a measure of internal strengths that need to be sustained, challenges that require quality improvement initiatives, and external factors such as social determinants that impact overall performance PHC.

Epidemiology of COVID-19 Infection in Oman: Analysis of the First 1304 Cases.

Objectives: We sought to identify the epidemiological characteristics of the first case series of patients with COVID-19 in Oman. Methods: We included national surveillance data of patients with laboratory-confirmed COVID-19 from 24 February to 17 April 2020. Analyses were performed using descriptive and univariate statistics. Results: Of the 1304 patients studied, the mean age was 37.0±13.0 years old, 80.3% were males, and 35.8% were Omanis. The other mostly affected nationalities were Indian (29.1%), Bangladeshi (20.0%), and Pakistani (10.7%). Out of the total, 80.1% were from the Muscat governorate. Omani patients were significantly more likely to be males than females and aged between 20 and 59 years old (p < 0.001). On presentation, 95.9% cases were mild, 3.6% moderate, and 0.5% severe. The case fatality rate was 0.5%. All deaths were from Muscat governorate; four from Mutrah, one from A'Seeb, and one from Bawshar. Conclusions: This case series provides epidemiological characteristics as well as the early outcomes of patients with laboratory-confirmed COVID-19.

An application of educational theories and principles of teaching and learning communication skills for general practitioners in oman.

This article discusses the crucial role of teaching and learning communication skills for general practitioners, based on the theory of experiential and self-directed learning. It also outlines the proposed ways and methods to teach these communication skills in this project.The patient-doctor interview or what is known as office visit in some countries and consultation in others is the cornerstone of the entire General Practice (GP) or Family Medicine. It is from this process and outcome that the reputation is gained or destroyed. The analysis of the consultation is complicated and varied but is most usefully employed to assess effecacy in terms of achieving the means that are mutually desired by patients and their carers.