93 research outputs found

    The Impact of COVID-19 on Accountants: Evidence from Saudi Arabia

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    The current research aimed to investigate the impact of COVID-19 quarantine periods on accountants’ performance and remote work environment in Saudi Arabia. Additionally, it aimed to examine government and professional bodies support and its implications on accountants adaptability to the changing work environment. Following a descriptive analytical research design, the research utilized a structured questionnaire survey to collect data. The participants were (1,086) accountants responded to the questionnaire. The research was conducted during the years 2020/2021. Results indicated COVID-19 had a large positive impact on accountants performance, whereas it had a negative impact on reducing the scope of work and reducing liquidity. Additionally, there were negative and positive impacts on accountants’ work environments in Saudi Arabia. Meanwhile, there was a large positive impact of Government and accounting professional bodies’ support on accountants adaptability during COVID-19. The impact of Government and accounting professional bodies’ support on accountants adaptability during COVID-19 can be predicted by the impact of the remote work environment on the performance of accountants, also the accounting profession has a positive role in times of pandemics and crisis. The research recommendations included providing accountants with ongoing training courses to improve their performance and technological skills during pandemics

    Mutational Landscape and Expression of PD-L1 in Patients with Non-Small Cell Lung Cancer Harboring Genomic Alterations of the MET gene

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    BACKGROUND Mesenchymal-to-epithelial transition (MET) exon 14 skipping mutations and MET gene amplification occur in 3-5% of non-small cell lung cancer (NSCLC) patients. Tyrosine kinase inhibitors (TKIs) targeting MET alterations have shown promising results in these patients. OBJECTIVE The aim of this study was to describe the genomic profile, PD-L1 expression and clinicopathological features of MET dysregulated NSCLC. PATIENTS AND METHODS We identified 188 patients with advanced-stage NSCLC with data on MET expression by immunohistochemistry (IHC). IHC for PD-L1 expression was performed in 131 patient samples, and next-generation sequencing (NGS) analysis was performed in 109 patient samples. RESULTS MET exon 14 skipping alterations were identified in 16 (14.7%) samples, MET amplifications with cut-off ≄4 copy number variations were identified in 11 (10.1%) samples, and an oncogenic MET mutation (MET p.D1228N) was identified in 1 (0.9%) sample. 12/15 tumors (80.0%) harboring MET exon 14 alterations and 7/11 (63.6%) MET-amplified tumors expressed PD-L1 in ≄1% of tumor cells. Tumors harboring MET exon 14 skipping alterations expressed PD-L1 more frequently than MET wild-type IHC-positive tumors (p = 0.045). Twenty-five percent of MET exon 14-altered cases and 33% of MET-amplified cases harbored potentially targetable oncogenic co-mutations in KRAS, BRAF, and EGFR. The most frequent co-occurring mutations in all MET-altered tumors were TP53, KRAS, BRAF, and CDK4. CONCLUSIONS We demonstrated that MET exon 14 skipping alterations and MET amplification are not mutually exclusive to other oncogenic co-mutations, and report the association of genomic MET alterations with PD-L1 expression. Since genomic MET alterations are emerging targets requiring upfront treatment, optimal understanding of the co-mutational landscape for this patient population is needed

    MRI features of perifibrinous deposits in the placenta due to COVID-19

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    COVID-19 has been linked to pregnancy complications and loss (1). Infection during pregnancy is usually mild (2). The risk is highest in the third trimester with increased hospital admission rates and maternal and fetal compromise (3). Post-COVID placentitis is uncommon but the effect on the placenta and the fetus is extensive (4). We present a case correlating clinical, imaging, and pathological findings. Case Report: A 29-year-old para 2 gravida 1, with a normal fetal anomaly scan at 22 weeks gestational age (GA) contracted COVID at 24 weeks gestation. Fully recovered but reported reduced fetal movements at 27 weeks and 1 day. Imaging: US scan showed bright echoes within the brain, small lungs, and oligohydramnios. MRI showed abnormal brain signals, small lungs, and oligohydramnios but also a very abnormal placenta. Reduced and heterogeneous T2 signal and a marked reduction in the DWI signal intensity. The placental size was markedly reduced (volume 785.6 cm3 expected for GA is 5604.8–5952.4 cm3. The surface area of attachment was 3220 mm2, expected 22180.4–29293.2 mm2). Pathology: The placenta was small (fifth centile) with massive perivillous fibrin deposition and multifocal chronic deciduitis. Histology revealed placental chorionic villi showing diffuse sclerotic changes surrounded by perivillous fibrin deposition in the intervillous space. The basal plate revealed multifocal chronic deciduitis. When imaging the fetus, it is important to examine the placenta and correlate any abnormalities. The placenta is a forgotten organ and should be routinely included and assessed to allow the detection of important abnormalities

    Accelerated directed evolution of dye-decolorizing peroxidase using a bacterial extracellular protein secretion system (BENNY)

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    Background Dye-decolorizing peroxidases (DyPs) are haem-containing peroxidases that show great promises in industrial biocatalysis and lignocellulosic degradation. Through the use of Escherichia coli osmotically-inducible protein Y (OsmY) as a bacterial extracellular protein secretion system (BENNY), we successfully developed a streamlined directed evolution workflow to accelerate the protein engineering of DyP4 from Pleurotus ostreatus strain PC15. Result After 3 rounds of random mutagenesis with error-prone polymerase chain reaction (epPCR) and 1 round of saturation mutagenesis, we obtained 4D4 variant (I56V, K109R, N227S and N312S) that displays multiple desirable phenotypes, including higher protein yield and secretion, higher specific activity (2.7-fold improvement in kcat/Km) and higher H2O2 tolerance (sevenfold improvement based on IC50). Conclusion To our best knowledge, this is the first report of applying OsmY to simplify the directed evolution workflow and to direct the extracellular secretion of a haem protein such as DyP4

    Maternal mental health during COVID-19 pandemic outbreak: A cross-sectional comparative study

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    BackgroundAs COVID-19 spread in several countries, social distancing measures was implemented around the world, affecting the quality of lives for millions of people. The impact was more pronounced on vulnerable populations such as pregnant women, who are at even more risk due to their suppressed immune system. Moreover, mental health disorders are more common among pregnant women compared to non-pregnant. This study aims to assess the influence of social isolation measures due to the COVID-19 pandemic on the mental health of women in their third trimester and postpartum.Material and methodsThis is a cross-sectional survey-based study conducted in Khalid University Hospital, Riyadh, Saudi Arabia, between the months of April to May 2021, to explore depression and anxiety levels in females who gave birth during the COVID-19 pandemic. In addition to background demographic data, the survey included Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder Scale-7 (GAD-7) were utilized to detect symptoms of depression and anxiety, respectively.ResultsA total of 283 women were included in this study, almost half of them were ante-natal (n-141) and the rest were post-natal (n = 124). 62.3% were in the age groups of 25–35 years. Based on the PHQ-9 scoring, 65% of the study sample had depression (ranging from mild to severe). Moreover, based on GAD-7 scoring, 49.1% had anxiety (ranging from mild to severe). No association was found between PHQ-9 and GAD-7 scores and different sociodemographic and obstetric factors. Additionally, the mean scores of women infected with COVID-19 vs. women who has never been diagnosed with COVID-19 were closely comparable.ConclusionsWe reported a high prevalence of depression and anxiety among pregnant women during COVID-19 pandemic. Policymakers and health care providers are advised to implement targeted preventive measures for pregnant women to improve mental health in times of epidemics

    FRAX- vs. T-score-based intervention thresholds for osteoporosis

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    Many current guidelines for the assessment of osteoporosis, including those in Kuwait, initiate fracture risk assessment in men and women using BMD T-score thresholds. We compared the Kuwaiti guidelines with FRAX-based age-dependent intervention thresholds equivalent to that in women with a prior fragility fracture. FRAX-based intervention thresholds identified women at higher fracture probability than fixed T-score thresholds, particularly in the elderly. PURPOSE: A FRAXŸ model been recently calibrated for Kuwait, but guidance is needed on how to utilise fracture probabilities in the assessment and treatment of patients. METHODS: We compared age-specific fracture probabilities, equivalent to women with no clinical risk factors and a prior fragility fracture (without BMD), with the age-specific fracture probabilities associated with femoral neck T-scores of -2.5 and -1.5 SD, in line with current guidelines in Kuwait. Upper and lower assessment thresholds for BMD testing were additionally explored using FRAX. RESULTS: When a BMD T-score of -2.5 SD was used as an intervention threshold, FRAX probabilities of a major osteoporotic fracture in women aged 50 years were approximately twofold higher than those in women of the same age but with an average BMD. The increase in risk associated with the BMD threshold decreased progressively with age such that, at the age of 83 years or more, a T-score of -2.5 SD was associated with a lower probability of fracture than that of the age-matched general population with no clinical risk factors. The same phenomenon was observed from the age of 66 years at a T-score of -1.5 SD. A FRAX-based intervention threshold, defined as the 10-year probability of a major osteoporotic fracture in a woman of average BMI with a previous fracture, rose with age from 4.3% at the age of 50 years to 23%, at the age of 90 years, and identified women at increased risk at all ages. Qualitatively comparable findings were observed in the case of hip fracture probability and in men. CONCLUSION: Intervention thresholds based on BMD alone do not optimally target women at higher fracture risk than those on age-matched individuals without clinical risk factors, particularly in the elderly. In contrast, intervention thresholds based on fracture probabilities equivalent to a 'fracture threshold' consistently target women at higher fracture risk, irrespective of age

    The Impact of Monetary Policy Using Islamic or Non-islamic Money Supply on Fdi in Jordan (1980-2018)

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    This study aimed to investigate the impact of monetary policy using Islamic or non-Islamic money supply on FDI in Jordan. Using time series analysis of selected variables during the period 1980 until 2018 using the ARDL model. The objective achieved the appropriate statistical tests such as data stability and co-integration tests have been used. The variables analyzed include the money supply (M2), the Islamic money supply (IMS), the export (EXP), Government Expenditure (GOV), inflation rate (INR), The gross domestic product (GDP) as independent variables. The dependant variable is the foreign direct investment (FDI). This study results in a long-term and short-term statistically significant correlation between the money supply (M2), the Islamic money supply (IMS) and FDI. The Islamic money supply (IMS) has a positive impact and the money supply (M2) has a negative impact on the FDI. The study recommended; the Jordanian government must implement a targeted Islamic monetary policy to attract foreign direct investment in the Jordanian economy. Provide an appropriate environment for investment and to remove the obstacles to investment in general, in order to attract the capital of Jordanians working abroad for domestic investment, as well as for foreign investments

    Experimental Studying of Improving the Thermal Performance of the Integrated Collector Storage Solar System by Plate Fins

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    Abstract The integral collector storage (ICS) solar system is one of the promising solar system due to its attractive features such as lower initial cost, minimal operation cost as well as its immunity against the problems of freezing and overheating. The long-term performance of the conventional ICS system is less than that of the other conventional solar systems as the flat plate collector. To improve the CICS system performance, an array of plate fins is fixed in the system storage tank. The new system is referred to as NICS system. The NICS system gives a solution of increasing the CICS system performance. Its collection efficiency is better than that of the CICS system. The NICS system showed a better long-term performance under noon and evening load profiles
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