Publications by authors named "Khalid Z"

The MXene, which is usually transition metal carbide, nitride, and carbonitride, is one of the emerging family of 2D materials, exhibiting considerable potential across various research areas. Despite theoretical versatility, practical application of MXene is prohibited due to its spontaneous oxidative degradation. This review meticulously discusses the factors influencing the oxidation of MXenes, considering both thermodynamic and kinetic point of view.

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Forty-four samples of garlic plants showing virus-like symptoms were collected, during the growing season (2021-2022) from different locations in Qassim province, Saudi Arabia. These samples were analyzed by ELISA against the important Allium allexiviruses including garlic virus A (GarV-A), garlic virus B (GarV-B), garlic virus C (GarV-C), and Shallot virus X (ShVX). The obtained results showed that 22/44 (50%) samples were found to be infected with one of the tested viruses.

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During the field visits in growing season of 2022 in Dammam Region of Saudi Arabia, begomovirus-like symptoms including leaf curling, leaf cupping, leaf distortion, vein thickening and reduced leaf size were observed in squash and cucumber fields. Twenty-five samples were collected from each crop and PCR amplification was done using general diagnostic begomovirus primers (AC-1048/AV-494 and Begomo I/Begomo II). The obtained results showed desired sized amplified DNA fragments (550 bp and 1.

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Human papillomavirus (HPV) infection is a major etiologic factor in cervical cancer, a major cause of cancer-related morbidity and mortality among women worldwide. The role of microRNA (miRNA) dysregulation in cervical carcinogenesis is still largely unknown, but epigenetic changes, including DNA methylation and miRNA regulation, are crucial factors. The integration of HPV DNA into the host genome can lead to alterations in DNA methylation patterns and miRNA expression, contributing to the progression from normal epithelium to cervical intraepithelial neoplasia and, ultimately, to cervical cancer.

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  • Optimizing oncolytic viruses for cancer treatment involves removing harmful genes and adding new ones to improve their ability to replicate and stimulate immune responses.
  • The complex nature of viral genomes and the difficulty of creating modified viruses have slowed progress in developing these therapies.
  • Researchers used a novel strategy involving antibiotics, transposon systems, and advanced sequencing to efficiently engineer safer and more effective oncolytic viruses by identifying useful genetic changes.
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  • - The study analyzed 21 youthful parricide offenders (ages 11-21) to explore links between mental health issues, psychopathy levels, and specific behaviors related to how they handled their victims' bodies after committing murder, focusing on "body movement" and "body alteration."
  • - One interesting finding was that one-third of the offenders engaged in "undoing" behaviors, motivated by psychological needs rather than practical reasons, yet those with a history of child abuse didn't show more of these behaviors compared to non-abused youth; many had high psychopathy levels.
  • - The research also noted that none of the youth with psychotic symptoms exhibited body management behaviors, and there was a clear distinction between how they and their non
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This 42-d study evaluated the effects of phytase, calcium butyrate (CB), and bacitracin methylene disalicylate 50 (BMD) on broiler performance, processing yields, and nutrient digestibility. Ross YPM x 708 male broilers (2,880 total) were distributed in 72 floor pens and assigned to 1 of 9 treatments (8 replicates/treatment) on d of hatch. This experiment was a 2 × 4 + 1 factorial arrangement, including 2 phytase concentrations (500 or 1,500 FTU/kg), 4 microbiota modulating feed additive groups (MMFA; none, CB (0.

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Background: Cephalometric analysis has been used as one of the main tools for orthodontic diagnosis and treatment planning. The analysis can be performed manually on acetate tracing sheets, digitally by manual selection of landmarks or by recently introduced Artificial Intelligence (AI)-driven tools or softwares that automatically detect landmarks and analyze them. The use of AI-driven tools is expected to avoid errors and make it less time consuming with effective evaluation and high reproducibility.

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Brain tumour diagnosis involves assessing various radiological and histopathological parameters. Imaging modalities are an excellent resource for disease monitoring. However, manual inspection of imaging is laborious, and performance varies depending on expertise.

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  • Corynebacterium diphtheriae is a multi-drug resistant bacteria that causes diphtheria, a serious respiratory illness that can lead to severe nervous system issues if untreated.
  • The study focused on the MtrA response regulator of this bacteria, as it is crucial for bacterial pathogenesis and cell division, and aimed to develop drugs inhibiting this protein using computational methods.
  • Three promising small molecule inhibitors were identified through molecular docking and dynamics simulations, with the need for further in vivo and in vitro studies to confirm their effectiveness as therapeutic agents for C. diphtheriae infections.
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Objectives: To evaluate the lumbar core stability in club-level cricket bowlers.

Methods: This descriptive cross-sectional study was conducted in the twin cities of Rawalpindi and Islamabad in Pakistan from July 15 to December 10, 2022, after approval from the ethics review board Foundation University Medical College, Islamabad, and comprised male, club-level, hard-ball cricket bowlers aged 18-24 years. Data was collected through a self-structured demographic sheet, and core stability was assessed using McGill Torso Muscle Endurance Test Battery.

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  • The study aimed to determine the prevalence of discordance in bone mineral density (BMD) measurements between the femoral and lumbar regions among older adults in Riyadh, Saudi Arabia.
  • It involved 1429 patients aged 60 and above who underwent DXA screenings, revealing a 41.6% prevalence of discordance in BMD status, with minor discordance (39.4%) being more common than major discordance (2.2%).
  • The findings highlight the importance for healthcare providers to consider discordance in DXA results, particularly when diagnosing osteoporosis in high-risk patients, though the study's limitations suggest further research is needed across various age groups.
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Background The precision of clinical documentation in trauma and orthopaedic surgery is pivotal, given its profound implications on patient care and medicolegal risks. This study assessed the impact of an autotext template intervention on the adherence of clinical documentation to the neurovascular assessment standards set by the National Institute for Health and Care Excellence (NICE) and the British Orthopaedic Association Standards for Trauma (BOAST). Methods Conducted at a single hospital, this observational study comprised two phases: a retrospective analysis of clinical documentation for 56 fracture patients (n=56) followed by the implementation of an autotext template and subsequent analysis of a new cohort of 57 patients (n=57).

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The main objectives of this study are to estimate the biased technical progress in China considering heterogeneity in human capital and labor force, examine how this heterogeneity quantitatively impacts the elasticity of substitution and biased technical progress compared to homogeneous labor assumptions, and compare the growth rates of human capital-augmenting and labor-augmenting technical progress. The estimation procedure involves a constrained Seemingly Unrelated Regression (SUR) using provincial-level panel data from 1985 to 2021. By comparing results with and without accounting for labor force heterogeneity and human capital, the analysis quantifies their impact on the estimated elasticity of substitution between factors and the magnitude and direction of technical bias.

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The coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has killed millions of people and continues to wreak havoc across the globe. This sudden and deadly pandemic emphasizes the necessity for anti-viral drug development that can be rapidly administered to reduce morbidity, mortality, and virus propagation. Thus, lacking efficient anti-COVID-19 treatment, and especially given the lengthy drug development process as well as the critical death tool that has been associated with SARS-CoV-2 since its outbreak, drug repurposing (or repositioning) constitutes so far, the ideal and ready-to-go best approach in mitigating viral spread, containing the infection, and reducing the COVID-19-associated death rate.

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Background: Measles has been a significant public health concern in Pakistan, especially in the Khyber Pakhtunkhwa (KPK) province, where sporadic and silent epidemics continue to challenge existing control measures. This study aimed to estimate the prevalence and investigate the molecular epidemiology of the measles virus (MeV) in KPK and explore the vaccination status among the suspected individuals.

Methods: A cross-sectional study was conducted between February and October 2021.

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Introduction: Acute heart failure (AHF) is a leading cause of unplanned hospitalization, often associated with poor outcomes. Decongestion with intravenous loop diuretics is the mainstay of treatment. Metrics such as door-to-diuretic time, the time between presentation of AHF to the hospital, and administration of intravenous diuretics, may play an important role in faster decongestion and thereby reduce mortality.

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Spinal cord injury (SCI) is associated with currently irreversible consequences in several functional components of the central nervous system. Despite the severity of injury, there remains no approved treatment to restore function. However, with a growing number of preclinical studies and clinical trials, cell transplantation has gained significant potential as a treatment for SCI.

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The possible future emergence of new SARS-CoV-2 virus variants pushes the development of new chemoprophylaxis protocols complementary to the unspecific and specific immune-prophylaxis measures currently used. The SARS-CoV-2 virus is particularly sensitive to oxidation, due to the relevant positive electrical charge of its spike protein used as a ligand for target cells. The present study evaluated the safety and efficacy of a new oxidant preparation, liquid hyperoxygen (IOL), to neutralize the SARS-CoV-2 virus.

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This study establishes an expert-driven evaluation system to assess the sustainable tourism development of drama-related intangible cultural heritage in China. Utilizing the Saaty 1-9 scale and hierarchical analysis method, 52 experts determined indicator weights and current development levels. Four dimensions are evaluated: humanistic value, project quality, tourism development, and sustainability.

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This study assessed the association between sociodemographic factors and post-traumatic stress symptoms (PTSS) among 18-24-year-olds during the first wave of the COVID-19 pandemic. This was a secondary analysis of data from 4508 individuals collected through an online survey conducted between June and January 2021. PTSS was measured as a dependent variable using the checklist for post-traumatic stress disorder in civilians.

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Neurobiological evidence has grown increasingly relevant in U.S. criminal proceedings, particularly during sentencing.

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Obesity has long been recognized as a major independent risk factor for cardiovascular diseases (CVD). However, intriguing paradoxes such as the "obesity paradox" and the "fat but fit" phenomenon have been associated with it. The "fat but fit" paradigm suggests that overweight or obese individuals might face a lower risk of developing cardiovascular disease if they possess high levels of physical fitness.

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