Prevalence of keratoconus among refractive surgery candidates Abstract: Background: Reasons for refraining from refractive surgery were numerous, with a change of mind after the pre examination being the most common. Patients who changed their minds were very similar to those who had surgery. World Wide Keratoconus is a comparatively common diseases frequency ranging from 50 to 230 per 100,000. Keratoconus is increasing rapidly in Asir Province, Saudi Arabia and more fastly occurred / create complications at a young age. This might reflect the influence of genetic and/or environmental factor(s) in the aetiology of keratoconus Objective: The aim of this study was to find out the prevalence of Keratoconus among refractive surgery cand

2017 ◽  
Author(s):  
Dr. Abdulrahman Mohammed Al- Amri
Author(s):  
Abdulmalik Alghamdi ◽  
Mohammed Alzahrani ◽  
Abdulla Alhamami ◽  
Adel Altalhi ◽  
Ali Alkhathami ◽  
...  

Author(s):  
Sabah Abdullah Al-Somali ◽  
Roya Gholami ◽  
Ben Clegg

Despite the proliferation of e-commerce adoption by SMEs and the world-wide growth of e-commerce, in general there is a paucity of empirical studies that examine the adoption of e-commerce by SMEs in the Middle East. In this paper, the authors provide insights into the salient e-commerce adoption issues by focusing on Saudi Arabian SMEs. This research was designed using a qualitative approach through in-depth case studies selected from firms in Saudi Arabia. The findings contribute toward a better conceptual and practical understanding of the main factors driving SMEs to adopt e-commerce. The authors find that the level of e-commerce implementation has yet to mature and customer readiness for Internet shopping must improve before e-commerce reaches the levels of maturity seen in other regions of the world. This study highlights directions for future inquiry and implications for information and technology managers and policymakers in developing Arab nations.


Author(s):  
Nasser Alsabaani ◽  
Mohammed Sultan Alshehri ◽  
Mohammed A. AlFlan ◽  
Nabil J. Awadalla

2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S278-S278
Author(s):  
Mohammed Qutub ◽  
Yasser Aldabbagh ◽  
Prasanth Govindan ◽  
Ebtihal Alamoudi

Abstract Background The prevalence of tuberculosis across Saudi Arabia is variable with western provinces have the highest incidence. This study aimed to determine the epidemiology of tuberculosis in Jeddah, the age and gender distribution and the accuracy of conventional diagnostic method, for better understanding of tuberculosis-resistant pattern in the country. Methods Three hundred forty-four culture proven tuberculosis where collected from November 2006 to November 2016 in KFSHRC. AFB smear and nucleic acid amplification test (NAAT) were conducted in all positive cultures, and all data were analyzed using SPSS. Mean days number to culture positivity was 12.79. Results TB showed young age predominant (59.5%) compared with older population (37.0%) and pediatrics (3.5%), with 55.4% males and 44.6% females, 54.8% of samples were taken from pulmonary and 45.2% from extra pulmonary site of infection. 68.3% and 5.9% of the tuberculosis proven culture were negative by using AFB smear and NAAT, respectively, and only 68.8% were positive for mycobacterium tuberculosis complex by using NAAT. Resistant level to first-line anti tuberculosis of 12.5%, 10.3%, 5.2%, 2.6%, 1.3%, 2.6% to Streptomycin, isoniazid, pyrazinamide, Rifampicin, Ethambutol and multidrug-resistant, respectively, was observed in our study. Conclusion Young age predominance, high values of negative smear and NAAT increased incidence of extra pulmonary site of infection and Re-emergence of tuberculosis resistant which was observed in our study compared with previous national surveys (Illustrated in Figure 1), all should alter physicians’ Attention when investigating patients in Saudi Arabia and high clinical suspicion should be considered. Disclosures All authors: No reported disclosures.


2011 ◽  
Vol 9 (2) ◽  
pp. 41-65 ◽  
Author(s):  
Sabah Abdullah Al-Somali ◽  
Roya Gholami ◽  
Ben Clegg

Despite the proliferation of e-commerce adoption by SMEs and the world-wide growth of e-commerce, in general there is a paucity of empirical studies that examine the adoption of e-commerce by SMEs in the Middle East. In this paper, the authors provide insights into the salient e-commerce adoption issues by focusing on Saudi Arabian SMEs. This research was designed using a qualitative approach through in-depth case studies selected from firms in Saudi Arabia. The findings contribute toward a better conceptual and practical understanding of the main factors driving SMEs to adopt e-commerce. The authors find that the level of e-commerce implementation has yet to mature and customer readiness for Internet shopping must improve before e-commerce reaches the levels of maturity seen in other regions of the world. This study highlights directions for future inquiry and implications for information and technology managers and policymakers in developing Arab nations.


Zootaxa ◽  
2020 ◽  
Vol 4855 (1) ◽  
pp. 1-69
Author(s):  
HASSAN A. DAWAH ◽  
MOHAMMED A. ABDULLAH ◽  
SYED KAMRAN AHMAD ◽  
HATHAL AL-DHAFER ◽  
JAMES TURNER

Despite the species richness of hoverflies (Diptera: Syrphidae) world-wide (about 6,200 species) and their role as agents for controlling plant pests, their significance as pollinators, and as bioindicators of site quality, hoverfly fauna of Saudi Arabia is poorly known. In exploring the biodiversity of Diptera in southwest Saudi Arabia a survey of the hoverfly fauna of Jazan, Asir, Najran and Al-Baha was performed mainly using Malaise traps, sweep nets and light traps from 2011 to 2014. Forty known species of Syrphidae were identified and recorded in this study, 19 of them new to Saudi Arabia. This makes the total number of Syrphidae species recorded in Saudi Arabia (including one species recorded by others) is 41. In addition, three taxa belonging to the genera Eumerus Meigen, Orthonevra Macquart, and Paragus Latreille that could not be identified safely to species level because there were no adequate identification keys or males were missing in the collected material. A key to the genera of Syrphidae occurring in Saudi Arabia is provided. The fauna of Syrphidae recorded in this study consists much more of Afrotropical zoogeographical elements than Palaearctic ones. A complete checklist of Syrphidae of Saudi Arabia is provided. Biological data, where known, and world-wide distribution of the studied taxa are provided. This paper is published with the purpose of assisting biogeographical, biological or ecological studies on syrphids in Saudi Arabia. 


Zootaxa ◽  
2019 ◽  
Vol 4711 (3) ◽  
pp. 401-445
Author(s):  
HASSAN A. DAWAH ◽  
SYED K. AHMAD ◽  
MOHAMMED A. ABDULLAH ◽  
TADEUSZ ZATWARNICKI

Despite the species richness of Ephydridae world-wide (2000 species) and its prominent environmental roles as a minor pest and as a food for wildlife, only 13 species have been recorded from Saudi Arabia. Between 2012 and 2016, a biodiversity study of Diptera was conducted at Jazan, Asir, and Najran in south-western Saudi Arabia, at 22 sites, was performed mainly using Malaise traps and sweep nets. In this study, 43 known species of Ephydridae were identified, 37 of them for the first time from southwestern Saudi Arabia and 16 from Arabian Peninsula. This brings the total number of Ephydridae species in Saudi Arabia to 49 (including previous records). There were a further four species, which could not be identified authoritatively to species level. A list of all species of Ephydridae recorded from Saudi Arabia is appended. Images of thirty-two species are presented. The species recorded in this study are more Palaearctic in origin as compared to other regions. Biological information (where known) and world-wide distribution are included. This study has added new records to the Saudi Arabian checklist of Ephydridae, which will provide the basis for systematic studies and fauna analyses of future work on the family. The need for further field and laboratory work and surveillance is highlighted. 


Sign in / Sign up

Export Citation Format

Share Document