Comparative Analysis Between Saudi Arabia and Norway in Moving Beyond Fossil Fuels Towards a Sustainable Economy: A Special Emphasis on the Renewable Energy Sector

Saudi Arabia is the largest economy in the Middle East and the 18th largest in the world. The country has the world\u27s second-largest proven petroleum reserves and is the largest exporter of petroleum. In 2016, Saudi Arabia had the third highest estimated value of natural resources at $34.4 trillion (US). However, because of the 2014 oil crash, climate change, and the development of renewable energy technology, the government has decided to transition from its complete reliance on oil revenues and to start investing heavily in other non-oil sectors, such as the renewable energy sector. The Saudi government plans to generate 30% of its electricity from renewable energy sources and to establish a sustainable competitive market system. The country has planned to make this enormous shift with the help of the McKinsey Global Institute and the plan titled “Saudi Arabia Beyond Oil: The Investment and Productivity Transformation,” which is also known as “the vision of 2030.” Saudi Arabia and Norway are similar countries as they are both oil producers. Norway is a leading country in terms of creating a sustainable economy that generates electricity mostly from renewable energy, while Saudi Arabia has recently decided to shift away from fossil fuels and to focus on non-oil sectors, such as the renewable energy sector. Thus, this thesis will provide a comparative study between Saudi Arabia and Norway. This analysis will benefit Saudi Arabia with the Norwegian success in shifting from its reliance on fossil fuels to other non-oil sectors, mainly the renewable energy sector. The thesis will address the challenges that Saudi Arabia may encounter in achieving its goals related to the 2030 vision of shifting toward a sustainable economy and will offer some recommendations to facilitate achieving these goals

Two Weeks of Ischemic Conditioning Improves Walking Speed and Reduces Neuromuscular Fatigability in Chronic Stroke Survivors

This pilot study examined whether ischemic conditioning (IC), a noninvasive, cost-effective, and easy-to-administer intervention, could improve gait speed and paretic leg muscle function in stroke survivors. We hypothesized that 2 wk of IC training would increase self-selected walking speed, increase paretic muscle strength, and reduce neuromuscular fatigability in chronic stroke survivors. Twenty-two chronic stroke survivors received either IC or IC Sham on their paretic leg every other day for 2 wk (7 total sessions). IC involved 5-min bouts of ischemia, repeated five times, using a cuff inflated to 225 mmHg on the paretic thigh. For IC Sham, the cuff inflation pressure was 10 mmHg. Self-selected walking speed was assessed using the 10-m walk test, and paretic leg knee extensor strength and fatigability were assessed using a Biodex dynamometer. Self-selected walking speed increased in the IC group (0.86 ± 0.21 m/s pretest vs. 1.04 ± 0.22 m/s posttest, means ± SD; P\u3c 0.001) but not in the IC Sham group (0.92 ± 0.47 m/s pretest vs. 0.96 ± 0.46 m/s posttest; P= 0.25). Paretic leg maximum voluntary contractions were unchanged in both groups (103 ± 57 N·m pre-IC vs. 109 ± 65 N·m post-IC; 103 ± 59 N·m pre-IC Sham vs. 108 ± 67 N·m post-IC Sham; P = 0.81); however, participants in the IC group maintained a submaximal isometric contraction longer than participants in the IC Sham group (278 ± 163 s pre-IC vs. 496 ± 313 s post-IC, P = 0.004; 397 ± 203 s pre-IC Sham vs. 355 ± 195 s post-IC Sham; P = 0.46). The results from this pilot study thus indicate that IC training has the potential to improve walking speed and paretic muscle fatigue resistance poststroke

A Case Study of Crisis Management Training Needs: Saudi Airlines

This dissertation explores crisis management policies, programs, and training in the Kingdom of Saudi Arabia’s premier airliners, Saudi Arabian Airlines. Saudi Arabian Airlines is a domestic and international carrier with a major role in the transportation of millions of Muslim pilgrims to the Kingdom during the annual Hajj season. This event places enormous strains on the capacity of the carrier, the airport, ground support systems, and the societal infrastructure of country. There have been tireless efforts by the Airline’s staffers to serve millions of visitors including pilgrims in a timely, safe and appropriate manner. Crisis management for Saudi Arabian Airlines includes assessment of natural and man-made risks in the firm’s operational environment, the development of a comprehensive response plan that includes training of staff at all levels of the firm, compliance with all relevant legal and regulatory mandates, and the use of effective response tools and systems. Saudi Arabian Airlines is viewed herein as best approached through the theoretical lens of Systems Theory, which speaks to the interdependency that exists within complex, multi-faceted systems. To identify the approach taken by Saudi Arabian Airlines to crisis management and to assess whether or not its response could be enhanced through additional planning, training or other strategies, a case study including review of relevant literature augmented by a survey of a sample of industry employees was undertaken. The survey instrument, coupled with an analysis of relevant crisis management protocols and practices including those recommended by organizations such as the International Air Transport Association was sued. The study identifies a need for additional training of the Airlines’ employees for a more effective crisis respons

Fair and Diverse Group Formation Based on Multidimensional Features

The goal of group formation is to build a team to accomplish a specific task. Algorithms are being developed to improve the team\u27s effectiveness so formed and the efficiency of the group selection process. However, there is concern that team formation algorithms could be biased against minorities due to the algorithms themselves or the data on which they are trained. Hence, it is essential to build fair team formation systems that incorporate demographic information into the process of building the group. Although there has been extensive work on modeling individuals’ expertise for expert recommendation and/or team formation, there has been relatively little prior work on modeling demographics and incorporating demographics into the group formation process. We propose a novel method to represent experts’ demographic profiles based on multidimensional demographic features. Moreover, we introduce three diversity ranking algorithms that form a group by considering demographic features along with the minimum required skills. Unlike many ranking algorithms that consider one Boolean demographic feature (e.g., gender or race), our diversity ranking algorithms consider multiple demographic features simultaneously. Finally, we introduce a fair team formation algorithm that balances each candidate\u27s demographic information and expertise. We evaluate our proposed algorithms using real datasets based on members of a computer science program committee. The result shows that our algorithms form a program committee that is more diverse with an acceptable loss in utility

Psychological Stress in Language Learning: A Contemporary View beyond Teaching Methods

The current paper attempts to identify the role of stress in language learning. To achieve this objective, a critique of relevant literature was done by analyzing the concept of stress and how it can be manipulated to help improve the language learning process. Stress was reviewed in terms of its concept, measurement, resources, and management. The recommendation is that language teachers can deal with language learning stress in learners through a stress toolbox: awareness, observing, and management. Keywords: language learning, stress.

Extramedullary Hematopoiesis in a Patient with Beta Thalassemia: A Rare Case Report

Extramedullary hematopoiesis (EMH) is a rare disorder, defined as the appearance of hematopoietic elements outside the bone marrow or peripheral blood due to ineffective erythropoiesis or inadequate bone marrow activity in a variety of hematological diseases. EMH often manifests as hemopoietic masses in a variety of normal and abnormal bodily sites. We present a 21-year-old man with a medical history of beta thalassemia since he was nine months old. The primary clinical symptom was mild abdominal pain. In this case, we describe a rare instance of small bowel obstruction due to EMH and portal hypertension. Surgery solved the clinical problems, and the patient was discharged home

Prevalence of Hypertension among Asymptomatic Patients During Screening in the Primary Health Care Center, Riyadh, Saudi Arabia

Background: Hypertension is a significant public health problem globally, its prevalence and incidence are commonly seen in the Mideast countries, particularly in Saudi Arabia. It is a chronic disease that can harm many systems with its prevalence varying across different populations. The asymptomatic pattern of hypertension makes it a challenging disease. Screening for hypertension in asymptomatic individuals is crucial for early detection and management to prevent complications. Aim: we aim in our study to clarify prevalence of hypertension between asymptomatic patients during screening at primary health care centers in Saudi Arabia.Methods: In Riyadh, Saudi Arabia, Prince Sultan Medical City, observational research was carried out. Participants in the study were asymptomatic people getting regular checkups at primary health care centers. Blood pressure (BP) was taken using standardized protocols, with hypertension being defined as a systolic blood pressure (SBP) reading of at least 140 millimeters of mercury and/or a diastolic blood pressure (DBP) measurement of no fewer than 90 millimeters of mercury. Data were collected and analyzed to determine the prevalence of hypertension individuals in the study population. Results: A total of three hundred asymptomatic patients were incorporated into the study. The mean patient age was 41.22 years, with 25.7 % being male and 74.3 % female. The overall incidence of hypertension between asymptomatic patients during screening was found to be 20%. Subgroup analysis using age, sex, and other relevant factors will also be presented in the final report. Conclusion: Our study sheds light on the high incidence of hypertension among asymptomatic individuals during evaluation at primary health care centers in Prince Sultan Medical City, Saudi Arabia. The findings underline the importance of routine BP screening in the early identification and treatment of hypertension, which reduces the prevalence of cardiovascular disease in the general population

Characterisation of M2 muscarinic acetylcholine receptor signalling in dental pulp stem cells

Cholinergic signalling is hypothesised to occur in stem cells, and there is evidence that mesenchymal stem cells (MSCs) express a functional cholinergic system. Expression of functional acetylcholine receptors (AChRs) have been reported in several types of MSC, which suggests that MSCs have non-neuronal cholinoceptive properties that may play a role in their regenerative potential. However, this remains relatively unexplored, particularly, in Dental pulp stem cells (DPSCs). This project commenced by reviewing AChRs in MSCs, highlighting DPSCs characteristics, and then investigated the presence of functional AChRs and their role in modulating DPSCs regenerative potential. This study commenced by identifying gene expression of both classes of AChRs, the muscarinic (mAChRs) and the nicotinic (nAChRs), in DPSCs. Protein expression of detected AChRs was assessed via western blotting and immunofluorescence. Functionality of expressed AChRs was assessed using an array of AChRs agonists and antagonists and DPSCs viable count was measured via MTT assay. Subtype selective agonist was used to study the role of the targeted AChR and its influence on DPSCs regenerative potential. Proliferation of DPSCs in response to that stimulation was assessed via measuring viable cell count using MTT assay, Cell Counting Kit-8 (CCK-8), and cell cycle analysis. Survival of DPSCs was assessed via detecting proliferation recovery, measuring Lactate dehydrogenase (LDH) levels, and detecting Annexin V/Propidium iodide staining. Stemness potential of DPSCs was assessed via detecting gene expression of MSCs stemness markers and pluripotency markers. Migration of DPSCs was investigated using a wound healing assays. Osteogenic differentiation of DPSCs was assessed via phenotypic mineralisation stains. Gene expression of cell cycle markers, stemness markers, osteogenic markers were assessed via Real-time polymerase chain reaction (q-PCR). Whole RNA sequencing (RNA-seq) was undertaking to measure transcriptome changes and enriched signalling pathways. Follow-up analysis was undertaking via measuring the phosphorylation and transcripts levels of ERK1 and ERK2 of the Mitogen-activated protein kinase (MAPK) pathway. The results showed transcripts expression for the M2, M3 and M5 mAChRs, and expression of subunits that support the formation of α7 and α4β2-nAChRs. Subtype selective agonists/antagonists results suggest DPSCs to express functional M2 mAChR, α7 nAChRs, and α4β2-nAChRs. This was based on the ability of the agonists to influence DPSCs viable count and the subtype selective antagonist to cancel that effect. The project then focussed on mAChRs and protein expression of M2, M3 and M5 mAChRs were detected. The subsequent work focused on investigating the role of the M2 mAChRs in modulating the function of DPSCs via activating this receptor through its selective agonist Arecaidine propargyl ester (APE). Activation of the M2 mAChR inhibited DPSCs proliferation, in a reversable manner, without affecting DPSCs viability or survival. Further evidence showed that the M2 mAChR inhibits DPSCs proliferation by arresting cell cycle progression. This was further corroborated via expression analysis of key genes involved in the regulating cell cycle. The results also showed that M2 mAChR activation inhibited DPSCs migration and differentiation potential but did not interfere with DPSCs stemness. This was further corroborated via expression analysis of key genes involved in stemness and osteogenesis. The data obtained suggests that M2 mAChR activation induce DPSCs to go into a quiescent state. The RNA-seq results showed that DPSCs responded differently to M2 mAChR activation 4 and 24 hours post activation, with different sets of differentially expressed genes (DEGs). The analysis of the enriched pathways suggested that M2 mAChR activation regulates cellular processes involved in metabolism, growth, adhesion, and response to stimuli. These processes function in proliferation, migration, and cell cycle through several metabolic pathways associated with response to cellular and oxidative stress. Follow up analysis showed upregulation of ERK1 and ERK2 phosphorylation and transcripts, which are downstream effectors of the MAPK pathway. The data obtained suggests that the transcriptomic data support the observed inhibitory effect of the M2 mAChR on DPSCs functions and highlights the many downstream effectors involved in the M2 mAChR downstream signalling. In conclusion, this thesis presents evidence for the expression of a functional M2 mAChR in DPSCs, indicating the involvement of ACh signalling in modulating DPSCs behaviour. It also provides a promising route ultimately to pharmacologically control the regenerative output of DPSCs

Exploring the Potential for Using Drug Indications to Prevent Look-Alike and Sound-Alike Drug Errors

Background: Look-alike, sound-alike (LASA) drug names are a cause of medication errors with resulting patient harm and healthcare costs. This study assessed to which extent the use of the generic drug name, therapeutic class, health problem, and the U.S. Food and Drug Administration (FDA)-approved indications might be used to differentiate LASA drug pairs. Research design and methods: We collected information about LASA drug pairs reported by the FDA to have look-alike sound-alike similarities. To assess potential for differentiating LASA drug pairs, we compared the following drug characteristics: generic name, therapeutic class, health problem, and FDA-approved indication. Results: For the 33 FDA reported LASA drug pairs we identified a total of 432 FDA-approved indications. Using the generic name, therapeutic class, health problem and drug indication we were able to differentiate 8 (24.2%), 24 (72.7%), 25 (75.8%) and 26 (78.8%), respectively of the 33 LASA drug pairs. Using the generic name, therapeutic class, and health problem we were able to distinguish 31 (7.2%), 212 (49.1%), and 269 (62.3%), respectively of the 432 FDA-approved indications for the LASA drug pairs. Conclusions: Including the FDA-approved indication in the drug prescription may be used to differentiate LASA drug pairs and thus, prevent wrong drug medication errors

Periodontal status among adult cigarette smokers using Miswak (Salvadora persica) for oral hygiene: A crosssectional study from Asir Region of Saudi Arabia

Purpose: To compare the periodontal status of exclusive users of Miswak (Salvadora persica) with that of exclusive toothbrush users among adult smokers of cigarettes in Saudi Arabia.Methods: This educational-institutional study included one hundred and fifty adult patients (age and socioeconomic status matched, SES) between the ages of 18 and 75, and were listed as the group I, II, and III, with 50 participants each (participants with no oral hygiene, toothbrush users and miswak users respectively). Oral hygiene habits, the number of cigarettes smoked, and time since the habit began. Periodontal and radiographic parameters were reported.Results: All parameters related to periodontium (plaque index (PI), gingival index (GI), bleeding on probing (BOP), probing pocket depth (PPD), gingival recession (Rec), clinical attachment level (CAL) and bone loss (BL)) showed that the analysed groups exhibited differences (p < 0.001). Least amount of BL (anterior and posterior) was found in toothbrush users and Miswak users, while least amount of attachment loss (both anterior and posterior) was recorded among Miswak users (p > 0.05). Positive association was found for GI (r = 0.753) and recession (r = 0.436, p < 0.001) in terms of the number of cigarettes smoked in group I, and anterior PPD (r = 0.388, p < 0.001) in group III for the duration of smoking. A negative correlation was found for BOP in group III (r = - 0.339, p < 0.05) in terms of frequency of tooth cleaning and GI (r = - 0.381) (p < 0.001) in group II, in terms of time taken attain oral hygiene.Conclusion: This study indicates less severe periodontal damage among adult current cigarette smokers in miswak users than in toothbrush users. Thus, there some potentials for miswak use for promotion of oral hygiene. Keywords: Periodontal status, Adult cigarette smokers, Miswak, Oral hygien