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Dr. Mohammad Mahtab Alam
King Khalid University

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Journal article
Published: 08 July 2021 in Human Vaccines & Immunotherapeutics
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The success of COVID-19 vaccination depends on individual’s vaccine acceptance. There has been misinformation on the media that doubts its effectiveness, safety, and long-term risk. Such controversy could affect the acceptance toward the uptake of the COVID-19 vaccine. The objective of this study was to assess the factors influencing the acceptance and hesitancy toward the COVID-19 vaccine in Saudi Arabia. A cross-sectional study was conducted. An online survey was conducted with four parameters: Demographics, medical history, knowledge and information sources about COVID-19 and vaccine, and hesitancy/acceptance of vaccinations. Bivariate analysis between several survey items and the acceptance of COVID-19 vaccine was conducted using Chi-square test. Logistic regression was used to assess to what degree each variable affects the acceptance and the hesitancy toward the COVID-19 vaccine. Approximately 64% show a desire to accept the vaccine while 18.3% were extremely hesitant to take the vaccine. Non-demographic factors that were associated with the acceptance toward the COVID-19 vaccine were the source of health information about COVID-19 (OR:1.63; 95% CI:1.07–2.47), perception toward whether the vaccine is effective on other variants of the virus (OR:7.24; 95% CI:4.58–11.45), previous uptake of the influenza vaccine (OR:1.62; 95% CI:1.07–2.47), and potential mandatory of vaccination in order to travel internationally (OR:16.52; 95% CI:10.23–26.68). This study provides an insight into factors – other than the sociodemographic – influencing the acceptance of the COVID-19 vaccine in Saudi Arabia. The government should address the COVID-19-related misinformation and rumors to increase acceptance of COVID-19 vaccination.

ACS Style

Saeed Mastour Alshahrani; Salem Dehom; Diaa Almutairi; Badr Saud Alnasser; Bandar Alsaif; Ahmed A. Alabdrabalnabi; Abdullah Bin Rahmah; Mastour Safar Alshahrani; Ashraf El-Metwally; Badr F Al-Khateeb; Fatmah Othman; Mohammad Mahtab Alam. Acceptability of COVID-19 vaccination in Saudi Arabia: A cross-sectional study using a web-based survey. Human Vaccines & Immunotherapeutics 2021, 1 -10.

AMA Style

Saeed Mastour Alshahrani, Salem Dehom, Diaa Almutairi, Badr Saud Alnasser, Bandar Alsaif, Ahmed A. Alabdrabalnabi, Abdullah Bin Rahmah, Mastour Safar Alshahrani, Ashraf El-Metwally, Badr F Al-Khateeb, Fatmah Othman, Mohammad Mahtab Alam. Acceptability of COVID-19 vaccination in Saudi Arabia: A cross-sectional study using a web-based survey. Human Vaccines & Immunotherapeutics. 2021; ():1-10.

Chicago/Turabian Style

Saeed Mastour Alshahrani; Salem Dehom; Diaa Almutairi; Badr Saud Alnasser; Bandar Alsaif; Ahmed A. Alabdrabalnabi; Abdullah Bin Rahmah; Mastour Safar Alshahrani; Ashraf El-Metwally; Badr F Al-Khateeb; Fatmah Othman; Mohammad Mahtab Alam. 2021. "Acceptability of COVID-19 vaccination in Saudi Arabia: A cross-sectional study using a web-based survey." Human Vaccines & Immunotherapeutics , no. : 1-10.

Journal article
Published: 26 June 2021 in International Communications in Heat and Mass Transfer
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Nanofluid is treated as a smart fluid that is useful for heat and mass transfer enhancement, which is paramount in several electronics, biomedical, transportation as well as industrial applications. In view of this, in the current analysis we scrutinize the flow of nanofluid over a curved stretching sheet. The noted novelty of this work is to discuss the heat and mass transfer in nanofluid flow along with the activation energy. Further, CuO with water-based nanofluid is considered in the modelling. The viscosity and effective thermal conductivity of fluid flow suspended by nanoparticles are scrutinized by Koo–Kleinstreuer–Li (KKL) model. By employing suitable similarity transformations, the governing equations of momentum, thermal and concentration of nanoparticle are converted into ordinary differential equations and then they are solved with Runge–Kutta-Fehlberg-45 (RKF-45) process along with shooting method. The impact of pertinent non-dimensional parameters is attained and illustrated with the help of graphs. The results reveal that, the heightening of Biot number and curvature parameter heightens the thermal gradient. The mass transfer decreases as the Schmidt number and chemical reaction rate parameter increases. The upsurge in activation energy parameter declines the mass transfer.

ACS Style

R. Naveen Kumar; R.J. Punith Gowda; Mohammad Mahtab Alam; Irfan Ahmad; Y.M. Mahrous; M.R. Gorji; B.C. Prasannakumara. Inspection of convective heat transfer and KKL correlation for simulation of nanofluid flow over a curved stretching sheet. International Communications in Heat and Mass Transfer 2021, 126, 105445 .

AMA Style

R. Naveen Kumar, R.J. Punith Gowda, Mohammad Mahtab Alam, Irfan Ahmad, Y.M. Mahrous, M.R. Gorji, B.C. Prasannakumara. Inspection of convective heat transfer and KKL correlation for simulation of nanofluid flow over a curved stretching sheet. International Communications in Heat and Mass Transfer. 2021; 126 ():105445.

Chicago/Turabian Style

R. Naveen Kumar; R.J. Punith Gowda; Mohammad Mahtab Alam; Irfan Ahmad; Y.M. Mahrous; M.R. Gorji; B.C. Prasannakumara. 2021. "Inspection of convective heat transfer and KKL correlation for simulation of nanofluid flow over a curved stretching sheet." International Communications in Heat and Mass Transfer 126, no. : 105445.

Research article
Published: 01 June 2021 in BioMed Research International
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Background. Obesity causes different diseases, eventually. In our study, the results of resistance exercises were examined on selected biochemical markers in Abha City, Saudi Arabia, which is at the height of 2,270 meters above sea level. Methods. A randomized controlled research was conducted with 60 participants equally divided into three groups, 20 subjects in each group: group 1 was composed of obese people who received resistance training exercise, group 2 was composed of the obese control group who did not receive resistance training exercise, and group 3 was composed of normal individuals who received resistance exercise training. The resistance exercises were done in the 6th and 12th weeks. Biochemical blood tests were done. Results. Comparing to the control group, glucose decreased very little with insulin also showing little difference. It has been seen that TC, TG, and LDL reduced to a reasonable extent after resistance exercise, while HDL was increased ( p ≤ 0.01 ). Plasma urea and creatinine showed no differences. Interleukin-6 and leptin decreased significantly ( p ≤ 0.01 ), while there was a significant elevation in adiponectin and testosterone ( p ≤ 0.01 ) once comparing group 1 with group 2 and group 3. Conclusion. We have seen that resistance exercise helps in reducing lipid profile which will result in a decrease of the cardiac and related risk factors when conducted in obese patients in high-altitude regions. Also, alterations of the levels of interleukin-6, leptin, adiponectin, and testosterone showed that resistance exercise is of benefit and favourable in obese persons in high-altitude regions, which can also pave the way for added development of drugs related to the above parameters.

ACS Style

Gaffar Sarwar Zaman; Mohammed Abohashrh; Irshad Ahmad; Ayed A. Dera; Mastour S. Alshahrani; Irfan Ahmad; Mohammad Mahtab Alam; Syed Esam Mahmood; Nasrin Mansuri; Safia Irfan; Forhad Akhtar Zaman. The Impact of Body Resistance Training Exercise on Biomedical Profile at High Altitude: A Randomized Controlled Trial. BioMed Research International 2021, 2021, 1 -10.

AMA Style

Gaffar Sarwar Zaman, Mohammed Abohashrh, Irshad Ahmad, Ayed A. Dera, Mastour S. Alshahrani, Irfan Ahmad, Mohammad Mahtab Alam, Syed Esam Mahmood, Nasrin Mansuri, Safia Irfan, Forhad Akhtar Zaman. The Impact of Body Resistance Training Exercise on Biomedical Profile at High Altitude: A Randomized Controlled Trial. BioMed Research International. 2021; 2021 ():1-10.

Chicago/Turabian Style

Gaffar Sarwar Zaman; Mohammed Abohashrh; Irshad Ahmad; Ayed A. Dera; Mastour S. Alshahrani; Irfan Ahmad; Mohammad Mahtab Alam; Syed Esam Mahmood; Nasrin Mansuri; Safia Irfan; Forhad Akhtar Zaman. 2021. "The Impact of Body Resistance Training Exercise on Biomedical Profile at High Altitude: A Randomized Controlled Trial." BioMed Research International 2021, no. : 1-10.

Journal article
Published: 31 May 2021 in Applied Sciences
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Our aim in this article is to study the radiation and multiple slip effects on magnetohydrodynamic bioconvection flow of micropolar based nanofluid over a stretching surface. In addition, a steering mechanism of making improvements to the Brownian motion and thermophoresis motion of nanoparticles is integrated. The numerical solution of 2-dimensional laminar bioconvective boundary layer flow of micropolar based nanofluids is presented. The basic formulation as partial differential equations is transmuted into ordinary differential equations with the help of suitable similarity transformations. Which are then solved by using the Runge–Kutta method of fourth-order with shooting technique. Some important and relevant characteristics of physical quantities are evaluated via inclusive numerical computations. The influence of vital parameters such as buoyancy parameter λ, bioconvection Rayleigh number Rb, the material parameter K are examined. This investigation showed that with the increment in material parameter, micro rotation and velocity profile increases. In addition, the temperature rises due to the enhancement in Nb (Brownian motion) and Nt (thermophoresis parameter).

ACS Style

Sohaib Abdal; Hesham Alhumade; Imran Siddique; Mohammad Alam; Irfan Ahmad; Sajjad Hussain. Radiation and Multiple Slip Effects on Magnetohydrodynamic Bioconvection Flow of Micropolar Based Nanofluid over a Stretching Surface. Applied Sciences 2021, 11, 5136 .

AMA Style

Sohaib Abdal, Hesham Alhumade, Imran Siddique, Mohammad Alam, Irfan Ahmad, Sajjad Hussain. Radiation and Multiple Slip Effects on Magnetohydrodynamic Bioconvection Flow of Micropolar Based Nanofluid over a Stretching Surface. Applied Sciences. 2021; 11 (11):5136.

Chicago/Turabian Style

Sohaib Abdal; Hesham Alhumade; Imran Siddique; Mohammad Alam; Irfan Ahmad; Sajjad Hussain. 2021. "Radiation and Multiple Slip Effects on Magnetohydrodynamic Bioconvection Flow of Micropolar Based Nanofluid over a Stretching Surface." Applied Sciences 11, no. 11: 5136.

Journal article
Published: 14 May 2021 in Journal of Molecular Liquids
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The current analysis explores the impact of thermophoretic particle deposition and magnetic dipole in the flow of Maxwell liquid over a stretching sheet. Using suitable transformations, the modelling equations are changed into a system of ordinary differential equations (ODEs). Finally, the Runge Kutta Fehlberg 45 (RKF 45) process with shooting technique is then utilized to solve these equations numerically. The impact of relevant parameters on flow fields, heat and mass transfer along with skin friction, Sherwood number, thermophoretic diffusive deposition velocity and Nusselt number are studied and discussed in detail using graphical representations. Results reveal that, the improvement in ferromagnetic interaction parameter value deteriorates the velocity gradient but improves heat and mass transfer. Also, when compared to Maxwell fluid, the heat transfer characteristics of Newtonian liquid is sturdily affected and decays faster for boost up values of both thermophoretic parameter and thermophoretic coefficient. The escalating values of Schmidt number and Maxwell parameter progresses the thermophoretic diffusive deposition velocity but, converse trend is depicted for escalation values of thermophoretic parameter.

ACS Style

R. Naveen Kumar; A.M. Jyothi; Hesham Alhumade; R.J. Punith Gowda; Mohammad Mahtab Alam; Irfan Ahmad; M.R. Gorji; B.C. Prasannakumara. Impact of magnetic dipole on thermophoretic particle deposition in the flow of Maxwell fluid over a stretching sheet. Journal of Molecular Liquids 2021, 334, 116494 .

AMA Style

R. Naveen Kumar, A.M. Jyothi, Hesham Alhumade, R.J. Punith Gowda, Mohammad Mahtab Alam, Irfan Ahmad, M.R. Gorji, B.C. Prasannakumara. Impact of magnetic dipole on thermophoretic particle deposition in the flow of Maxwell fluid over a stretching sheet. Journal of Molecular Liquids. 2021; 334 ():116494.

Chicago/Turabian Style

R. Naveen Kumar; A.M. Jyothi; Hesham Alhumade; R.J. Punith Gowda; Mohammad Mahtab Alam; Irfan Ahmad; M.R. Gorji; B.C. Prasannakumara. 2021. "Impact of magnetic dipole on thermophoretic particle deposition in the flow of Maxwell fluid over a stretching sheet." Journal of Molecular Liquids 334, no. : 116494.

Journal article
Published: 03 May 2021 in Applied Sciences
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E-Learning through a cloud-based learning management system, with its various added advantageous features, is a widely used pedagogy at educational institutions in general and more particularly during and post Covid-19 period. Successful adoption and implementation of cloud E-Learning seems difficult without significant service quality. Aims: This study aims to identify the determinant of cloud E-Learning service quality. Methodology: A theoretical model was proposed to gauge the cloud E-Learning service quality by extensive literature search. The most important factors for cloud E-Learning service quality were screened. Instruments for each factor were defined properly, and its content validity was checked with the help of Group Decision Makers (GDMs). Empirical testing was used to validate the proposed theoretical model, the self-structured closed-ended questionnaire was used to conduct an online survey. Findings: Internal consistency of the proposed model was checked with reliability and composite reliability and found appropriate α ≥ 0.70 and CR ≥ 0.70. Indicator Reliability was matched with the help of Outer Loading and found deemed fit OL ≥ 0.70. To establish Convergent Validity Average Variance Extracted, Factor Loading and Composite Reliability were used and found deemed suitable with AVE ≥ 0.50. The HTMT and Fornell–Lacker tests were applied to assess discriminant validity and found appropriate (HTMT ≤ 0.85). Finally, the Variance Inflation Factor was used to detect multicollinearity if any and found internal and external VIF < 3. Conclusions: Theoretical model for cloud E-Learning service quality was proposed. Information Quality, Reliability, Perceived ease of use and Social Influence were considered as explanatory variables whereas actual system usage was the dependent variable. Empirical testing on all parameters stated that the proposed model was deemed fit in evaluating cloud E-Learning service quality.

ACS Style

Quadri Naveed; Mohammad Alam; Adel Qahmash; Kahkasha Quadri. Exploring the Determinants of Service Quality of Cloud E-Learning System for Active System Usage. Applied Sciences 2021, 11, 4176 .

AMA Style

Quadri Naveed, Mohammad Alam, Adel Qahmash, Kahkasha Quadri. Exploring the Determinants of Service Quality of Cloud E-Learning System for Active System Usage. Applied Sciences. 2021; 11 (9):4176.

Chicago/Turabian Style

Quadri Naveed; Mohammad Alam; Adel Qahmash; Kahkasha Quadri. 2021. "Exploring the Determinants of Service Quality of Cloud E-Learning System for Active System Usage." Applied Sciences 11, no. 9: 4176.

Journal article
Published: 17 March 2021 in Molecules
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The COVID-19 outbreak continues to spread worldwide at a rapid rate. Currently, the absence of any effective antiviral treatment is the major concern for the global population. The reports of the occurrence of various point mutations within the important therapeutic target protein of SARS-CoV-2 has elevated the problem. The SARS-CoV-2 main protease (Mpro) is a major therapeutic target for new antiviral designs. In this study, the efficacy of PF-00835231 was investigated (a Mpro inhibitor under clinical trials) against the Mpro and their reported mutants. Various in silico approaches were used to investigate and compare the efficacy of PF-00835231 and five drugs previously documented to inhibit the Mpro. Our study shows that PF-00835231 is not only effective against the wild type but demonstrates a high affinity against the studied mutants as well.

ACS Style

Mohammad Baig; Tanuj Sharma; Irfan Ahmad; Mohammed Abohashrh; Mohammad Alam; Jae-June Dong. Is PF-00835231 a Pan-SARS-CoV-2 Mpro Inhibitor? A Comparative Study. Molecules 2021, 26, 1678 .

AMA Style

Mohammad Baig, Tanuj Sharma, Irfan Ahmad, Mohammed Abohashrh, Mohammad Alam, Jae-June Dong. Is PF-00835231 a Pan-SARS-CoV-2 Mpro Inhibitor? A Comparative Study. Molecules. 2021; 26 (6):1678.

Chicago/Turabian Style

Mohammad Baig; Tanuj Sharma; Irfan Ahmad; Mohammed Abohashrh; Mohammad Alam; Jae-June Dong. 2021. "Is PF-00835231 a Pan-SARS-CoV-2 Mpro Inhibitor? A Comparative Study." Molecules 26, no. 6: 1678.

Journal article
Published: 02 March 2021 in Sustainability
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E-Learning has proven to be the only resort as a replacement of traditional face-to-face learning methods in the current global lockdown due to COVID-19 pandemic. Academic institutions across the globe have invested heavily into E-Learning and the majority of the courses offered in traditional classroom mode have been converted into E-Learning mode. The success of E-Learning initiatives needs to be ensured to make it a sustainable mode of learning. The objective of the current study is to propose a holistic E-Learning service framework to ensure effective delivery and use of E-Learning Services that contributes to sustainable learning and academic performance. Based on an extensive literature review, a proposed theoretical model has been developed and tested empirically. The model identifies a broad range of success determinants and relates them to different success measures, including learning and academic performance. The proposed model was validated with the response from 397 respondents involved with an E-Learning system in the top five public universities in the southern region of Saudi Arabia through the Partial Least Squares regression technique using SmartPLS software. Five main factors (Learner’s Quality, Instructor’s Quality, Information’s Quality, System’s Quality and Institutional Quality) were identified as a determinant of E-Learning service performance which together explains 48.7% of the variance of perceived usefulness of ELS, 71.2% of the variance of use of the E-Learning system. Perceived usefulness of ELS and use of ELS together explain 70.6% of learning and academic performance of students. Hence the framework will help achieve the sustainable and successful adoption of E-Learning services.

ACS Style

Mohammad Alam; Naim Ahmad; Quadri Naveed; Ayyub Patel; Mohammed Abohashrh; Mohammed Khaleel. E-Learning Services to Achieve Sustainable Learning and Academic Performance: An Empirical Study. Sustainability 2021, 13, 2653 .

AMA Style

Mohammad Alam, Naim Ahmad, Quadri Naveed, Ayyub Patel, Mohammed Abohashrh, Mohammed Khaleel. E-Learning Services to Achieve Sustainable Learning and Academic Performance: An Empirical Study. Sustainability. 2021; 13 (5):2653.

Chicago/Turabian Style

Mohammad Alam; Naim Ahmad; Quadri Naveed; Ayyub Patel; Mohammed Abohashrh; Mohammed Khaleel. 2021. "E-Learning Services to Achieve Sustainable Learning and Academic Performance: An Empirical Study." Sustainability 13, no. 5: 2653.

Journal article
Published: 23 February 2021 in Saudi Journal of Biological Sciences
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Although several pharmacological agents are under investigation to be repurposed as therapeutic against COVID-19, not much success has been achieved yet. So, the search for an effective and active option for the treatment of COVID-19 is still a big challenge. The Spike protein (S), RNA-dependent RNA polymerase (RdRp), and Main protease (Mpro) are considered to be the primary therapeutic drug target for COVID-19. In this study we have screened the drugbank compound library against the Main Protease. But our search was not limited to just Mpro. Like other viruses, SARS-CoV-2, have also acquired unique mutations. These mutations within the active site of these target proteins may be an important factor hindering effective drug candidate development. In the present study we identified important active site mutations within the SARS-CoV-2 Mpro (Y54C, N142S, T190I and A191V). Further the drugbank database was computationally screened against Mpro and the selected mutants. Finally, we came up with the common molecules effective against the wild type (WT) and all the selected Mpro. The study found Imiglitazar, was found to be the most active compound against the wild type of Mpro. While PF-03715455 (Y54C), Salvianolic acid A (N142S and T190I), and Montelukast (A191V) were found to be most active against the other selected mutants. It was also found that some other compounds such as Acteoside, 4-Amino-N- {4-[2-(2,6-Dimethyl-Phenoxy)-Acetylamino]-3-Hydroxy-1-Isobutyl-5-Phenyl-Pentyl}-Benzamide, PF-00610355, 4-Amino-N-4-[2-(2,6-Dimethyl-Phenoxy)-Acetylamino]-3-Hydroxy-1-Isobutyl-5-Phenyl-Pentyl}-Benzamide and Atorvastatin were showing high efficacy against the WT as well as other selected mutants. We believe that these molecules will provide a better and effective option for the treatment of COVID-19 clinical manifestations.

ACS Style

Tanuj Sharma; Mohammed Abohashrh; Mohammad Hassan Baig; Jae-June Dong; Mohammad Mahtab Alam; Irfan Ahmad; Safia Irfan. Screening of drug databank against WT and mutant main protease of SARS-CoV-2: Towards finding potential compound for repurposing against COVID-19. Saudi Journal of Biological Sciences 2021, 28, 3152 -3159.

AMA Style

Tanuj Sharma, Mohammed Abohashrh, Mohammad Hassan Baig, Jae-June Dong, Mohammad Mahtab Alam, Irfan Ahmad, Safia Irfan. Screening of drug databank against WT and mutant main protease of SARS-CoV-2: Towards finding potential compound for repurposing against COVID-19. Saudi Journal of Biological Sciences. 2021; 28 (5):3152-3159.

Chicago/Turabian Style

Tanuj Sharma; Mohammed Abohashrh; Mohammad Hassan Baig; Jae-June Dong; Mohammad Mahtab Alam; Irfan Ahmad; Safia Irfan. 2021. "Screening of drug databank against WT and mutant main protease of SARS-CoV-2: Towards finding potential compound for repurposing against COVID-19." Saudi Journal of Biological Sciences 28, no. 5: 3152-3159.

Journal article
Published: 03 January 2021 in Molecules
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Background: The red-complex bacteria are one of the most significant complexes found simultaneously in subgingival plaque next to the periodontal pocket. The current antibacterial treatment is not adequate, and multidrug resistance to it is developing. Henceforth, the antibacterial effect of the ethanolic extract of Nepeta deflersiana was put to test against red-complex bacteria in patients with chronic periodontitis. Methods: Well diffusion and micro broth dilution procedure by Alamar blue were applied to assess the zone of inhibition (ZOI), the minimum inhibitory concentration (MIC), and the minimum bactericidal concentration (MBC). Anti-virulence efficacies of the plant extract that comprise of adherence and formation of biofilms were examined by the process of adherence and biofilm production assay. Results: The crude extract of Nepeta deflersiana exhibited significant inhibitory outcome against periodontopathic bacteria with noteworthy MIC (0.78–3.12 mg/mL), inhibitory zone (12–20 mm), as well as MBC (3.12–12.50 mg/mL). The N. deflersiana extract inhibited bacterial adhesion ranging from 41% to 52%, 53% to 66%, and 60% to 79% at the given MIC × 0.5, MIC × 1, and MIC × 2 in succession. Substantial suppression was also developed in the biofilm production of the investigated periodontopathic strains following exposure to numerous concentrations of N. deflersianan extract for a period of 24 and 48 h. Conclusion: These outcomes divulge a new concept that N. deflersiana extract can be utilized to manufacture valuable antibacterial compounds to treat chronic and acute periodontitis. This identifies N. deflersiana as an essential natural source for future drug development.

ACS Style

Irfan Ahmad; Safia Irfan; Mohammed Abohashrh; Shadma Wahab; Shahabe Abullais; Mukhatar Javali; Nazima Nisar; Mohammad Alam; Saurabh Srivastava; Mohd Saleem; Gaffar Zaman; Irshad Ahmad; Nasrin Mansuri. Inhibitory Effect of Nepeta deflersiana on Climax Bacterial Community Isolated from the Oral Plaque of Patients with Periodontal Disease. Molecules 2021, 26, 202 .

AMA Style

Irfan Ahmad, Safia Irfan, Mohammed Abohashrh, Shadma Wahab, Shahabe Abullais, Mukhatar Javali, Nazima Nisar, Mohammad Alam, Saurabh Srivastava, Mohd Saleem, Gaffar Zaman, Irshad Ahmad, Nasrin Mansuri. Inhibitory Effect of Nepeta deflersiana on Climax Bacterial Community Isolated from the Oral Plaque of Patients with Periodontal Disease. Molecules. 2021; 26 (1):202.

Chicago/Turabian Style

Irfan Ahmad; Safia Irfan; Mohammed Abohashrh; Shadma Wahab; Shahabe Abullais; Mukhatar Javali; Nazima Nisar; Mohammad Alam; Saurabh Srivastava; Mohd Saleem; Gaffar Zaman; Irshad Ahmad; Nasrin Mansuri. 2021. "Inhibitory Effect of Nepeta deflersiana on Climax Bacterial Community Isolated from the Oral Plaque of Patients with Periodontal Disease." Molecules 26, no. 1: 202.

Journal article
Published: 17 October 2020 in Sustainability
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Advanced mobile devices and global internet services have enhanced the usage of smartphones in the education sector and their potential for fulfilling teaching and learning objectives. The current study is an attempt to assess the factors affecting mobile learning acceptance by Saudi university students. A theoretical model of mobile learning acceptance was developed based on the technology acceptance model (TAM) and the unified theory of acceptance and use of technology (UTAUT) model. Theoretically, five independent constructs were identified as most contributory towards the use of mobile learning and tested empirically. Data were collected through an online survey and analyzed using SmartPLS. The results of the study indicate that four constructs were significantly associated with mobile learning acceptance: perceived usefulness (β = 0.085, t = 2.201, and p = 0.028), perceived ease of use (β = 0.031, t = 1.688, and p = 0.013), attitude (β = 0.100, t = 3.771, and p = 0.037), and facilitating conditions (β = 0.765, t = 4.319, and p = 0.001). On the other hand, social influence was insignificant (β = –0.061, t = 0.136, and p = 0.256) for mobile learning acceptance. The contribution of social influence towards the use of mobile learning was negative and insignificant; hence, it was neglected. Thus, finally, four constructs (perceived usefulness, perceived ease of use, attitude, and facilitating conditions) were considered as important determinants of mobile learning acceptance by university students.

ACS Style

Quadri Naveed; Mohammad Alam; Nasser Tairan. Structural Equation Modeling for Mobile Learning Acceptance by University Students: An Empirical Study. Sustainability 2020, 12, 8618 .

AMA Style

Quadri Naveed, Mohammad Alam, Nasser Tairan. Structural Equation Modeling for Mobile Learning Acceptance by University Students: An Empirical Study. Sustainability. 2020; 12 (20):8618.

Chicago/Turabian Style

Quadri Naveed; Mohammad Alam; Nasser Tairan. 2020. "Structural Equation Modeling for Mobile Learning Acceptance by University Students: An Empirical Study." Sustainability 12, no. 20: 8618.

Journal article
Published: 17 August 2020 in Saudi Pharmaceutical Journal
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Chronic periodontitis has an interplay between different species of bacteria found in dental biofilms act a crucial role in pathogenesis and disease progression. The existing antibacterial therapy is inadequate, associated with many side effects as well as evolving multidrug resistance. Hence, novel drugs development with minimum or no toxicity is an immediate priority. Antibacterial efficacy of ethanolic extract of Matricaria aurea was tested against clinical isolates, ie. Treponema denticol, Tannerella forsythia, Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis from the patients with chronic periodontitis. Zone of inhibition, the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were investigated by well diffusion method and micro broth dilution assay using alamar blue. Anti-virulence properties of the extract, which include adherence property and the biofilm formation, were investigated by adherence as well as biofilm formation assay. Matricaria aurea extract showed potent inhibitory effect against pathogenic periodontal bacteria with the significant inhibitory zone (13–23 mm), MIC (0.39–1.56 mg/ml) as well as MBC (1.56–6.25 mg/ml). The M. aurea extract was able to inhibit bacterial adhesion ranged from 30 to 45%, 35 to 63% and 55 to 80% of MIC at MIC × 0.5, MIC × 1 and MIC × 2 respectively. Significant inhibition was found in biofilm formation to all the tested periodontal bacterial strains after the treatment with various concentrations of M. aurea extract for 24 and 48hrs. These results reveal for the first time that the Matricaria aurea extract might be the source of various compounds to be applied for chronic periodontitis therapy, which might draw these valuable compounds to the subsequent phase of development of the drug.

ACS Style

Irfan Ahmad; Shadma Wahab; Nazima Nisar; Ayed A. Dera; Mohammad Y Alshahrani; Shahabe Saquib Abullias; Safia Irfan; Mohammad Mahtab Alam; Saurabh Srivastava. Evaluation of antibacterial properties of Matricaria aurea on clinical isolates of periodontitis patients with special reference to red complex bacteria. Saudi Pharmaceutical Journal 2020, 28, 1203 -1209.

AMA Style

Irfan Ahmad, Shadma Wahab, Nazima Nisar, Ayed A. Dera, Mohammad Y Alshahrani, Shahabe Saquib Abullias, Safia Irfan, Mohammad Mahtab Alam, Saurabh Srivastava. Evaluation of antibacterial properties of Matricaria aurea on clinical isolates of periodontitis patients with special reference to red complex bacteria. Saudi Pharmaceutical Journal. 2020; 28 (10):1203-1209.

Chicago/Turabian Style

Irfan Ahmad; Shadma Wahab; Nazima Nisar; Ayed A. Dera; Mohammad Y Alshahrani; Shahabe Saquib Abullias; Safia Irfan; Mohammad Mahtab Alam; Saurabh Srivastava. 2020. "Evaluation of antibacterial properties of Matricaria aurea on clinical isolates of periodontitis patients with special reference to red complex bacteria." Saudi Pharmaceutical Journal 28, no. 10: 1203-1209.

Journal article
Published: 20 July 2020 in Medical Sciences
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Computed tomography (CT) is a key imaging technique in diagnostic radiology, providing highly sensitive and specific information. While its use has increased dramatically in recent years, the quantity and associated risks of radiation from CT scans present major challenges, particularly in paediatrics. The fundamental principles of radiation protection require that radiation quantities be as low as reasonably achievable and CT use must be justified, particularly for paediatric patients. CT radiation knowledge is a key factor in optimising and minimising radiation risk. The objective of this study was to analyse knowledge level, expertise, and competency regarding CT radiation dose and its hazards in paediatrics among radiologists in Saudi Arabian hospitals. A self-reported, multiple-choice questionnaire assessed the attitudes and opinions of radiologists involved in imaging studies using ionising radiation. Among the total respondents, 65% ± 13.5% had a good comprehension of the dangers of carcinogenicity to the patient resulting from CT scans, with 80% presuming that cancer risks were elevated. However, only 48.5%, 56.5%, and 65% of the respondents were aware of specific radiation risks in head, chest, and abdominal paediatric examinations, respectively. Regular, frequent, and specific training courses are suggested to improve the fundamental knowledge of CT radiation among radiologists and other physicians.

ACS Style

Hussain Almohiy; Khalid Hussein; Mohammed Alqahtani; Elhussaien Elshiekh; Omer Loaz; Azah Alasmari; Mohamed Saad; Mohamed Adam; Emad Mukhtar; Magbool Alelyani; Madshush Alshahrani; Nouf Abuhadi; Ghazi Alshumrani; Alaa Almazzah; Haney Alsleem; Nadiayah Almohiy; Amgad Alrwaili; Mohammad Alam; Abdullah Asiri; Mohammed Khalil; Mohammad Rawashdeh; Charbel Saade. Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study. Medical Sciences 2020, 8, 27 .

AMA Style

Hussain Almohiy, Khalid Hussein, Mohammed Alqahtani, Elhussaien Elshiekh, Omer Loaz, Azah Alasmari, Mohamed Saad, Mohamed Adam, Emad Mukhtar, Magbool Alelyani, Madshush Alshahrani, Nouf Abuhadi, Ghazi Alshumrani, Alaa Almazzah, Haney Alsleem, Nadiayah Almohiy, Amgad Alrwaili, Mohammad Alam, Abdullah Asiri, Mohammed Khalil, Mohammad Rawashdeh, Charbel Saade. Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study. Medical Sciences. 2020; 8 (3):27.

Chicago/Turabian Style

Hussain Almohiy; Khalid Hussein; Mohammed Alqahtani; Elhussaien Elshiekh; Omer Loaz; Azah Alasmari; Mohamed Saad; Mohamed Adam; Emad Mukhtar; Magbool Alelyani; Madshush Alshahrani; Nouf Abuhadi; Ghazi Alshumrani; Alaa Almazzah; Haney Alsleem; Nadiayah Almohiy; Amgad Alrwaili; Mohammad Alam; Abdullah Asiri; Mohammed Khalil; Mohammad Rawashdeh; Charbel Saade. 2020. "Radiologists’ Knowledge and Attitudes towards CT Radiation Dose and Exposure in Saudi Arabia—A Survey Study." Medical Sciences 8, no. 3: 27.

Research article
Published: 10 January 2020 in BioMed Research International
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Background. The burden of noncommunicable diseases (NCDs) in the Arab world has reached an alarming level. Behavioral risk factors including consumption of fast food, inadequate sleep, and skipping meals are pervasive. This study aims at establishing the association between NCDs and modernized behavioral risk factors among populations. Methods. A cross-sectional study was carried out with 1070 respondents who were 18 years old. The data were collected using a structured questionnaire with the help of the WHO STEPS approach with some modifications regarding NCD risk factors. Results. 30% of respondents had cardiovascular diseases (CVD) followed by respiratory diseases (23%) and diabetes (3%) while the habit of smoking was found among 52% of respondents followed by physical inactivity (49%), skipping meals (24%), and inadequate sleep (30%). Consumption of fast food was found to be a significant risk factor for obesity (odds ratio (OR) = 2.72, 95% confidence interval (CI) [1.50, 4.92]), CVD (OR = 1.52, 95% CI [1.20, 1.94]), and respiratory disease (OR = 2.13, 95% CI [1.58, 2.86]). Significant linkages were found between CVD and smoking (OR = 0.69, 95% CI [0.54, 0.88]), diet pattern (OR = 1.86, 95% CI [1.44, 2.39]), fast food (OR = 1.52, 95% CI [1.20, 1.94]), and sleep hours (OR = 0.57, 95% CI [0.42, 0.79]). Conclusions. Undesirable behavioral risk factors pose a considerable threat to public health with a high prevalence rate of NCDs. Reducing the NCD burden and promoting healthy lifestyle formation of suitable strategies and their smooth implementation is the need of the hour.

ACS Style

Arif Habib; Mohammad Mahtab Alam; Izhar Hussain; Nazim Nasir; Musa Almuthebi. Erratic Behavioral Attitude Leads to Noncommunicable Diseases: A Cross-Sectional Study. BioMed Research International 2020, 2020, 1 -8.

AMA Style

Arif Habib, Mohammad Mahtab Alam, Izhar Hussain, Nazim Nasir, Musa Almuthebi. Erratic Behavioral Attitude Leads to Noncommunicable Diseases: A Cross-Sectional Study. BioMed Research International. 2020; 2020 ():1-8.

Chicago/Turabian Style

Arif Habib; Mohammad Mahtab Alam; Izhar Hussain; Nazim Nasir; Musa Almuthebi. 2020. "Erratic Behavioral Attitude Leads to Noncommunicable Diseases: A Cross-Sectional Study." BioMed Research International 2020, no. : 1-8.

Journal article
Published: 14 December 2018 in Sustainability
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E-learning, a technology-mediated learning approach, is a pervasively adopted teaching/learning mode for transferring knowledge. Some of the motivational factors for its wide adoption are time and location independence, user-friendliness, on-demand service, resource richness, and multi-media and technology driven factors. Achieving sustainability and performance in its delivery is of paramount importance. This research utilizes the critical success factors (CSFs) approach to identify the sustainable E-learning implementation model. Fifteen CSFs have been identified through the literature review, expert opinions, and in-depth interviews. These CSFs have been modeled for interdependence using interpretive structural modeling and Matriced’ Impacts Croise’s Multiplication Appliquée a UN Classement (MICMAC) analysis. Further, the model has been validated through in-depth interviews. The present research provides quantification of CSFs of E-learning in terms of their driving and dependence powers and their classification thorough MICMAC analysis. The E-learning system organizers may focus on improving upon the enablers such as organizational infrastructure readiness, efficient technology infrastructure, appropriate E-learning course design, course flexibility, understandable relevant content, stakeholders’ training, security, access control and privileges, commitment, and being user–friendly and well-organized, in order to enhance the sustainability and performance in E-learning. This study will also help E-learning stakeholders in relocating and prioritizing resources.

ACS Style

Naim Ahmad; Noorulhasan Naveed Quadri; Mohamed Rafik N. Qureshi; Mohammad Mahtab Alam. Relationship Modeling of Critical Success Factors for Enhancing Sustainability and Performance in E-Learning. Sustainability 2018, 10, 4776 .

AMA Style

Naim Ahmad, Noorulhasan Naveed Quadri, Mohamed Rafik N. Qureshi, Mohammad Mahtab Alam. Relationship Modeling of Critical Success Factors for Enhancing Sustainability and Performance in E-Learning. Sustainability. 2018; 10 (12):4776.

Chicago/Turabian Style

Naim Ahmad; Noorulhasan Naveed Quadri; Mohamed Rafik N. Qureshi; Mohammad Mahtab Alam. 2018. "Relationship Modeling of Critical Success Factors for Enhancing Sustainability and Performance in E-Learning." Sustainability 10, no. 12: 4776.

Journal article
Published: 01 November 2018 in Russian Journal of Applied Chemistry
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The purpose of the current study is to optimize the batch reactor performance model using multiple regression analysis for saponification of ethyl acetate by sodium hydroxide. Reaction temperature, reactor volume, agitation rate and reactants initial concentration were the main parameters examined including their interaction effect. Selected process response was the reaction conversion with respect of NaOH. Regression analysis was used to screen out the insignificant factors and the reaction temperature and volume were found to have insignificant effect on the response at the 5% selected significance level (α = 0.05). As a result of multiple regression analysis, agitation rate and reactants concentration were found to be significant operating parameters. The dependence of reaction conversion (response) on agitation rate and concentration was explained by a second order polynomial model and it was concluded that regression model with second order polynomial was good enough to fit the experimental data. The maximum conversion (99.5%) was obtained under optimum operating conditions of agitation rate (70 rpm) and reactants concentration (0.05 M) as evident from surface contours.

ACS Style

M. K. Al Mesfer; M. Danish; Mohammad Mahtab Alam. Optimization of Performance Model of Ethyl Acetate Saponification Using Multiple Regression Analysis. Russian Journal of Applied Chemistry 2018, 91, 1895 -1904.

AMA Style

M. K. Al Mesfer, M. Danish, Mohammad Mahtab Alam. Optimization of Performance Model of Ethyl Acetate Saponification Using Multiple Regression Analysis. Russian Journal of Applied Chemistry. 2018; 91 (11):1895-1904.

Chicago/Turabian Style

M. K. Al Mesfer; M. Danish; Mohammad Mahtab Alam. 2018. "Optimization of Performance Model of Ethyl Acetate Saponification Using Multiple Regression Analysis." Russian Journal of Applied Chemistry 91, no. 11: 1895-1904.

Journal article
Published: 01 January 2018 in Biomedical Research
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Purpose: To describe the prevalence of fall risks factors using the Missouri Alliance for Home Care’s fall risk assessment tool (MAHC-10) on home-based health care (HHC) patients in the Aseer region, southern Saudi Arabia. Also, to highlight the process of care, and physical therapy utilization among home health care beneficiaries. Method: 242 patients’ information were retrieved and reviewed. Patients in our study received various healthcare services including physical therapy, nursing and physicians’ visits between October and December 2017. We used the MAHC-10, which was designed for assessing multifactorial fall risks among home-based health care patients. Results: 43% of patients were male, and 57% were female. Males received care within an average of 8 d of a referral date, whereas female patients received care within an average of 15 d. Majority of patients are functionally dependent (78%) of patients. Nursing visits were the highest number of professionals that provided HHC visits for both patients’ risk groups. The impairment of functional mobility had the highest fall risk factor among patients receiving HHC services, and fall history factor was the lowest prevalent fall risk factor among patients. Conclusion: Health care utilization is very important, and it should start early enough to decrease the risk of fall especially physical therapy visits. The level of functional mobility was also a most prevalent factor across all home health care patients in our study, and it is an essential element for predicting the likelihood of a fall in the older adult Aseer population.

ACS Style

Faisal Asiri; Adel Alshahrani; Mohamed Faia Aseeri; Mohammed Mehtab Alam; Sabri M. Ataalla; Mohammad A. AlMohiza4; Irshad A. Abdulhamed. Fall risks factors among home-based health care patients in the Aseer province: Observational study. Biomedical Research 2018, 29, 1 .

AMA Style

Faisal Asiri, Adel Alshahrani, Mohamed Faia Aseeri, Mohammed Mehtab Alam, Sabri M. Ataalla, Mohammad A. AlMohiza4, Irshad A. Abdulhamed. Fall risks factors among home-based health care patients in the Aseer province: Observational study. Biomedical Research. 2018; 29 (12):1.

Chicago/Turabian Style

Faisal Asiri; Adel Alshahrani; Mohamed Faia Aseeri; Mohammed Mehtab Alam; Sabri M. Ataalla; Mohammad A. AlMohiza4; Irshad A. Abdulhamed. 2018. "Fall risks factors among home-based health care patients in the Aseer province: Observational study." Biomedical Research 29, no. 12: 1.

Journal article
Published: 01 January 2018 in International Journal of Health and Rehabilitation Sciences (IJHRS)
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ACS Style

Faisal Asiri; Abdullah Altera; Mohammad Mahtab Alam; Mazen Alqahtani; Faizan Kashoo; Mahamed Ateef. Physical Therapy Utilization and Patients Characteristics among Home Health Care Beneficiaries with Cerebrovascular Accidents in Saudi Arabia. International Journal of Health and Rehabilitation Sciences (IJHRS) 2018, 7, 161 .

AMA Style

Faisal Asiri, Abdullah Altera, Mohammad Mahtab Alam, Mazen Alqahtani, Faizan Kashoo, Mahamed Ateef. Physical Therapy Utilization and Patients Characteristics among Home Health Care Beneficiaries with Cerebrovascular Accidents in Saudi Arabia. International Journal of Health and Rehabilitation Sciences (IJHRS). 2018; 7 (4):161.

Chicago/Turabian Style

Faisal Asiri; Abdullah Altera; Mohammad Mahtab Alam; Mazen Alqahtani; Faizan Kashoo; Mahamed Ateef. 2018. "Physical Therapy Utilization and Patients Characteristics among Home Health Care Beneficiaries with Cerebrovascular Accidents in Saudi Arabia." International Journal of Health and Rehabilitation Sciences (IJHRS) 7, no. 4: 161.

Research article
Published: 23 February 2017 in Journal of International Medical Research
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Objectives To determine whether age, body mass index (BMI), hand length and forearm circumference were predictive of hand grip strength in healthy Saudi Arabian adult males. Methods This cross-sectional descriptive study recruited healthy adult male volunteers. Their anthropometric characteristics including age, BMI, hand length and forearm circumference were measured using routine techniques. Hand grip strength was assessed using a Jamar® Hydraulic Hand Dynamometer. The data were analysed using Pearson correlation coefficient ( r) as well as by a stepwise multiple linear regression analysis. Results The study included 116 healthy males who satisfied the inclusion criteria. A Pearson correlation coefficient matrix demonstrated that all the four measures, age, BMI, hand length and forearm circumference, were significantly correlated with hand grip strength. Age had an inverse correlation with hand grip strength. The anthropometric measures of hand length, age and forearm circumference accounted for 44.2% (R2 0.442) of the variation of the hand grip strength. Conclusion Hand length, age and forearm circumference significantly impacted on hand grip strength in Saudi Arabian healthy adult males.

ACS Style

Khalid Alahmari; S. Paul Silvian; Ravi Shankar Reddy; Venkata Nagaraj Kakaraparthi; Irshad Ahmad; Mohammad Mahtab Alam. Hand grip strength determination for healthy males in Saudi Arabia: A study of the relationship with age, body mass index, hand length and forearm circumference using a hand-held dynamometer. Journal of International Medical Research 2017, 45, 540 -548.

AMA Style

Khalid Alahmari, S. Paul Silvian, Ravi Shankar Reddy, Venkata Nagaraj Kakaraparthi, Irshad Ahmad, Mohammad Mahtab Alam. Hand grip strength determination for healthy males in Saudi Arabia: A study of the relationship with age, body mass index, hand length and forearm circumference using a hand-held dynamometer. Journal of International Medical Research. 2017; 45 (2):540-548.

Chicago/Turabian Style

Khalid Alahmari; S. Paul Silvian; Ravi Shankar Reddy; Venkata Nagaraj Kakaraparthi; Irshad Ahmad; Mohammad Mahtab Alam. 2017. "Hand grip strength determination for healthy males in Saudi Arabia: A study of the relationship with age, body mass index, hand length and forearm circumference using a hand-held dynamometer." Journal of International Medical Research 45, no. 2: 540-548.

Journal article
Published: 17 February 2017 in Journal of Taibah University Medical Sciences
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أهداف البحث: تستكشف هذه الدراسة دور كل من محيط الركبة، ومؤشر كتلة الجسم والنطاق الحركي للركبة في التنبؤ بالفصال العظمي للركبة. وتهدف الدراسة إلى إيضاح الدور الوسيط الذي يلعبه مؤشر كتلة الجسم في التأثير على العلاقة بين العمر ومحيط الركبة، والألم في حالات الفصال العظمي للركبة٬ حسب ما تم قياسه باستخدام استبانة ”استطلاع مخرجات الركبة“. طرق البحث: استخدم في هذه الدراسة تصميم السببية المقارنة. وتكونت الدراسة من ٦٦ مريضا يعانون من الفصال العظمي للركبة المصحوب بالأعراض ويقابلهم ٦٠ فردا مطابقا بدون أعراض. النتائج: ارتبط مؤشر كتلة الجسم بشكل كبير وإيجابي مع كل من الألم ومحيط الركبة في مجموعة الفصال العظمي للركبة المصحوب بالأعراض. وتعني هذه النتيجة وجود علاقة بين الفصال العظمي للركبة ومؤشرات أخرى كالعمر ومحيط الركبة. الاستنتاجات: تشير نتائج الدراسة إلى وجود مَعلَم هام في مجال إعادة التأهيل السريري، خاصة بالنسبة لأخصائيي العلاج الطبيعي٬ مما يعينهم على التخطيط والتعديل وتصميم المداخلات بشكل أفضل لتحسين الوضع الصحي لمرضى الفصال العظمي للركبة

ACS Style

Khalid A. AlAhmari; Paul S. Silvian; Ravi S. Reddy; Irshad Ahmad; Venkata N. Kakaraparthi; Mohammad Mahtab Alam. Mediating role of body mass index in knee osteoarthritis. Journal of Taibah University Medical Sciences 2017, 12, 150 -156.

AMA Style

Khalid A. AlAhmari, Paul S. Silvian, Ravi S. Reddy, Irshad Ahmad, Venkata N. Kakaraparthi, Mohammad Mahtab Alam. Mediating role of body mass index in knee osteoarthritis. Journal of Taibah University Medical Sciences. 2017; 12 (2):150-156.

Chicago/Turabian Style

Khalid A. AlAhmari; Paul S. Silvian; Ravi S. Reddy; Irshad Ahmad; Venkata N. Kakaraparthi; Mohammad Mahtab Alam. 2017. "Mediating role of body mass index in knee osteoarthritis." Journal of Taibah University Medical Sciences 12, no. 2: 150-156.