Publications by authors named "Muhammad A Rehman"

Chimeric antigen receptor T cell (CAR-T) therapy has revolutionized the treatment of blood cancer. By improving survival outcomes for patients with B-cell malignancies, which hitherto have been unparalleled by conventional chemotherapy, CAR-T therapy is a beacon of hope for many patients with cancer. However, harvesting, modifying, and reintroducing T cells is costly, which means that not every patient with cancer who needs CAR-T therapy has the financial capacity to receive it.

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This study provides thorough computational and experimental assessments of four types of novel synthesized thiosemicarbazones. The compounds were effectively synthesized using a condensation reaction between thiosemicarbazide and fluorenone, producing a remarkable range of 70-88%. Additional chemical structures were examined utilizing spectroscopic methods, including Fourier-transform infrared spectroscopy (FTIR), NMR spectroscopy, and ultraviolet-visible spectroscopy.

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Article Synopsis
  • The study focused on the properties of the double perovskite material XGaAgCl (X = Cs, Rb), using Density Functional Theory (DFT) and tools like CASTEP and Quantum ESPRESSO for calculations.
  • The crystal structures of CsGaAgCl and RbGaAgCl were optimized, revealing their cubic symmetry and confirming their stability through phonon dispersion analysis.
  • The research highlighted their semiconducting nature with energy gaps around 0.96 eV and 0.88 eV and demonstrated their potential for photovoltaic applications, achieving efficiencies of 30% and 27%, respectively.
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Soil erodibility (K) is an essential component in estimating soil loss indicating the soil's susceptibility to detach and transport. Data Computing and processing methods, such as artificial neural networks (ANNs) and multiple linear regression (MLR), have proven to be helpful in the development of predictive models for natural hazards. The present case study aims to assess the efficiency of MLR and ANN models to forecast soil erodibility in Peninsular Malaysia.

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The survivability of encapsulated and nonencapsulated probiotics consisting of and and the nutritional, physicochemical, and sensorial features of cottage cheese were investigated under refrigeration storage at 4 °C for 28 days. Microbeads of and were developed using 2% sodium alginate, 1.5% sodium alginate and 0.

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This paper presents the design of microstrip-based multiplexers using stub-loaded coupled-line resonators. The proposed multiplexers consist of a diplexer and a triplexer, meticulously engineered to operate at specific frequency bands relevant to IoT systems: 2.55 GHz, 3.

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Renewable energy systems are vital for a sustainable future, where solid-state hydrogen storage can play a crucial role. Perovskite hydride materials have attracted the scientific community for hydrogen storage applications. The current work focuses on the theoretical study using density functional theory (DFT) to evaluate the characteristics of MgXH (X = Co, Cu, Ni) hydrides.

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American cranberry () and lowbush/wild blueberry () pomace are polyphenol-rich products having potentially beneficial effects in broiler chickens. This study investigated the cecal microbiome of broiler-vaccinated or non-vaccinated birds against coccidiosis. Birds in each of the two groups (vaccinated or non-vaccinated) were fed a basal non-supplemented diet (NC), a basal diet supplemented with bacitracin (BAC), American cranberry (CP), and lowbush blueberry (BP) pomace alone or in combination (CP + BP).

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Enterococci are Gram-positive bacteria that can be isolated from a variety of environments including soil, water, plants, and the intestinal tract of humans and animals. Although they are considered commensals in humans, spp. are important opportunistic pathogens.

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Objective: To assess the knowledge, attitude and practice of students and physicians regarding tissue and organ donation at a teaching hospital.

Methods: The cross-sectional study was conducted at the Dow University of Health Sciences, Karachi, in 2019, and comprised physicians and students of ether gender. Data was collected using a 43-item self-administered questionnaire.

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Economic losses and market constraints caused by bacterial diseases such as colibacillosis due to avian pathogenic Escherichia coli and necrotic enteritis due to Clostridium perfringens remain major problems for poultry producers, despite substantial efforts in prevention and control. Antibiotics have been used not only for the treatment and prevention of such diseases, but also for growth promotion. Consequently, these practices have been linked to the selection and spread of antimicrobial resistant bacteria which constitute a significant global threat to humans, animals, and the environment.

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Abstract: Extraintestinal pathogenic Escherichia coli (ExPEC) include several serotypes that have been associated with colibacillosis in poultry and with urinary tract infections (UTIs) and newborn meningitis in humans. In this study, 57 antimicrobial-resistant E. coli from apparently healthy broiler chickens were characterized for their health and safety risks.

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Recent advances in the fabrication and classification of amorphous carbon (a-Carbon) thin films play an active part in the field of surface materials science. In this paper, a pulsed laser deposition (PLD) technique through controlling experimental parameters, including deposition time/temperature and laser energy/frequency, has been employed to examine the substrate effect of amorphous carbon thin film fabrication over SiO and glass substrates. In this paper, we have examined the structural and magnetoresistance (MR) properties of these thin films.

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Article Synopsis
  • Scientists successfully detected both electron and positron signals at the SuperKEKB factory for the first time using a special detection system.
  • They measured important things like the time between electron and positron bunches, how long the bunches were, and how strong they were.
  • The research showed that by changing the phase of the system, they could increase the strength of the positron bunches, which had never been done before!
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Abstract: This study was conducted to investigate the effects of in-feed encapsulated cinnamaldehyde (CIN) and citral (CIT) alone or in combination on antimicrobial resistance (AMR) phenotypes and genotypes of Escherichia coli isolates recovered from feces of 6-, 16-, 23-, and 27-day-old broiler chickens. The five dietary treatments including the basal diet (negative control [NC]) and the basal diet supplemented with 55 ppm of bacitracin (BAC), 100 ppm of encapsulated CIN, 100 ppm of encapsulated CIT, or 100 ppm each of encapsulated CIN and encapsulated CIT (CIN+CIT). Antimicrobial susceptibility testing of 240 E.

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Analysis of mathematical models projected for COVID-19 presents in many valuable outputs. We analyze a model of differential equation related to Covid-19 in this paper. We use fractal-fractional derivatives in the proposed model.

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Guava is an important climacteric fruits in terms of taste and aroma, which contains various vital nutrients such as minerals, carotenoids, ascorbic acid, and polyphenols. At ambient conditions, it exhibits a short shelf life, which makes it difficult for marketing and subsequent storage. Therefore, it is necessary to develop procedures to extend its shelf life and conserve quality.

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Herein, halo-functionalized hydrazone derivatives "2-[(6'-chloroazin-2'-yl)oxy]-'-(2-fluorobenzylidene) aceto-hydrazone (), 2-[(6'-chloroazin-2'-yl)oxy]-'-(2-chlorobenzylidene) aceto-hydrazones (), 2-[(6'-chloroazin-2'-yl)oxy]-'-(2-bromobenzylidene) aceto-hydrazones ()" were synthesized and structurally characterized using FTIR, H-NMR, C-NMR, and UV-vis spectroscopic techniques. Computational studies using density functional theory (DFT) and time dependent DFT at CAM-B3LYP/6-311G (d,p) level of theory were performed for comparison with spectroscopic data (FT-IR, UV-vis) and for elucidation of the structural parameters, natural bond orbitals (NBOs), natural population analysis, frontier molecular orbital (FMO) analysis and nonlinear optical (NLO) properties of hydrazones derivatives (, , and ). Consequently, an excellent complement between the experimental data and the DFT-based results was achieved.

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Heidelberg is among the top three serovars associated with human foodborne illness in Canada. Traditional culture and antimicrobial susceptibility testing techniques can be time-consuming to identify Heidelberg resistant to cephalosporins and fosfomycin. Rapid and accurate detection of such antibiotic-resistant Heidelberg isolates is essential to adopt appropriate control measures.

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Nontyphoidal (NTS) is a leading global cause of bacterial foodborne morbidity and mortality. Our ability to treat severe NTS infections has been impaired by increasing antimicrobial resistance (AMR). To understand and mitigate the global health crisis AMR represents, we need to link the observed resistance phenotypes with their underlying genomic mechanisms.

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Nanosized sorbents for the removal of heavy metal ions are preferred due to high surface area, smaller size, and enhanced reactivity during adsorbate/adsorbent interactions. In the present study, FeO, SnO, and TiO nanoparticles were prepared by microemulsion-assisted precipitation method. The particles were characterized by BET surface area, X-rays diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, transmittance electron microscopy (TEM), and X-ray photoelectron (XPS) spectroscopy.

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We report a unique case of a 37-year-old patient, a known case of scleroderma, complaining of bilateral acute visual disturbance, which was diagnosed later on as Purtscher's retinopathy. After systemic assessment, she was diagnosed with bilateral kidney disease, consequently requiring further management accordingly.

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Enteritidis and Typhimurium are among the top Salmonella enterica serovars implicated in human salmonellosis worldwide. This study examined the individual and combined roles of catecholate-iron and hydroxamate-iron transporters in the survival in meat of Salmonella Enteritidis and Typhimurium. Catecholate-iron-III (Fe) and hydroxamate-Fe transporter genes fepA, iroN, and fhuACDB were deleted in isolates of these serovars to generate single, double, and triple mutants.

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