Publications by authors named "Mustapha S"

What Is Already Known About This Topic?: Public health laboratories (PHLs) are critical for effectively identifying, detecting, preventing, and responding to emerging and reemerging infectious diseases. Following the 2014 Ebola outbreak, Sierra Leone implemented a national laboratory strategic plan (2015-2020) aimed at creating, strengthening, and maintaining laboratory capacities for detecting, assessing, notifying, and reporting incidents, with a requirement to review PHL capabilities every five years.

What Is Added By This Report?: This study assessed the comprehensive capacity and personnel status of PHLs in Sierra Leone using a standardized assessment tool following the implementation of the 2015 National Laboratory Strategic Plan.

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Background: Asthenozoospermia, characterized by reduced sperm motility, is a common cause of male infertility. Multiple morphological abnormalities of the sperm flagella (MMAF) represent a severe and genetically heterogeneous form of asthenozoospermia. Over 50 genes have been associated, but approximately half of MMAF cases remain unexplained.

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Asthenoteratozoospermia is a common cause of male infertility. To further define the genetic causes underlying asthenoteratozoospermia, we performed whole-exome sequencing in a cohort of Han Chinese men with asthenoteratozoospermia. Homozygous deleterious variants of MYCBPAP were first identified in two unrelated Chinese cases.

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  • * A case study involved a 22-hour-old neonate with severe hyperbilirubinemia due to ABO incompatibility, where traditional treatments were ineffective, leading to the off-label use of low-dose intravenous methylprednisolone, which improved the condition rapidly.
  • * Managing severe NNJ poses challenges, especially in resource-limited settings, highlighting the need for further research on immunomodulatory treatments like methylprednisolone to assess their safety and effectiveness.
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Purpose: To identify the relationship between academic procrastination, performance, self-efficacy, and satisfaction, we investigate the mediational role of academic self-efficacy between academic procrastination and satisfaction, and between academic performance and satisfaction, respectively, among undergraduate students of local technology universities in China.

Methods: A cross-sectional study was conducted involving 388 undergraduate students from 22 local technology universities in Hubei, China. Data was collected through an online questionnaire measuring academic procrastination, performance, self-efficacy, and satisfaction.

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The detrimental effects of hyperthermia on the testes and the protective effect of thyme essential oil against testicular damage induced by this stress in rams were studied. Twenty-four rams of the Barbarine breed with an average weight of 62.5 ± 0.

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Background: Methicillin-Resistant (MRSA) is both a human commensal and a pathogen that causes neonatal infection which is associated with significant morbidity and mortality. Its genetic flexibility and versatility have equipped it with the ability to develop resistance to numerous antibiotics. Outbreaks of infections in neonatal intensive care units as well as community infections have been reported mostly in developed countries.

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  • Dengue fever, caused by the dengue virus, is a major public health issue in Nigeria, with recent outbreaks highlighting its endemic nature and significant impact, including over 5 million cases and 5000 deaths in 2023.
  • The paper focuses on the epidemiology of dengue in northern Nigeria, particularly in Sokoto state, and evaluates the Takeda dengue vaccine (TDV) and its potential to prevent the disease, despite challenges like vaccine acceptance and accessibility.
  • To combat the spread of dengue, future strategies should involve government action, community engagement, and innovative control measures that address the factors contributing to outbreaks, influenced by urbanization and local practices.
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Yearly reports of detrimental effects resulting from harmful algal blooms (HAB) are still received in Malaysia and other countries, particularly concerning fish mortality and seafood contamination, both of which bear consequences for the fisheries industry. The underlying reason is the absence of a dependable early warning system. Hence, this research aims to develop a single DNA biosensor that can detect a group of HAB species known for producing saxitoxin (SXT), which is commonly found in Malaysian waters.

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  • Small RNAs, particularly piRNAs, are essential for male germ cell development, with disruptions leading to male infertility through issues like spermatogenic defects and oligo-astheno-teratozoospermia (OAT).
  • The HENMT1 gene is critical for the biogenesis of piRNAs, and its dysfunction can cause severe sperm abnormalities and infertility, as seen in both knockout mice and patients with HENMT1 variants.
  • The study aimed to explore the potential for using sperm from two patients with HENMT1 variants in assisted reproductive technologies, but despite thorough analyses and multiple IVF-ICSI attempts, no live births were achieved.
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Interest in naturally occurring phytochemicals has been on the increase, they are believed to reduce the risk of brain disorders. Hispidulin (HN) is a phenolic flavonoid compound with various pharmacological and biological effects on the central nervous system. It belongs to the flavone class of flavonoids.

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This research aims to highlight the importance of diverse forms of graphitic carbon nitride (g-CN) as strengthening elements in epoxy composites. It explores the influence of three different forms of g-CN and their concentrations on the mechanical properties of the epoxy composites. Various characterization techniques, such as scanning electron microscopy (SEM), dynamic light scattering (DLS), thermogravimetric analysis (TGA), and Fourier-transform infrared spectroscopy (FTIR), were utilized to comprehend the effects of g-CN morphology and particle size on the physical and chemical characteristics of epoxy resin.

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  • - Adult-onset Still's disease (AOSD) is a rare auto-inflammatory disorder characterized by symptoms like fever, rash, and arthritis, with an unclear cause.
  • - Neurological symptoms are uncommon in AOSD, with aseptic meningitis being the most typical; Guillain-Barre syndrome (GBS) has not been previously associated with AOSD.
  • - A case is presented where a patient initially showed signs of GBS and fever, later diagnosed with AOSD, and responded well to corticosteroid treatment.
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  • - The article examines the current state of diversity, equity, and inclusion (DEI) in radiation oncology, highlighting the need for these values in healthcare settings.
  • - It reviews literature on DEI issues among healthcare professionals and patients, unveiling implicit biases and offering strategies to combat them.
  • - The findings reveal significant disparities in representation and treatment among different genders and ethnic groups in radiation oncology, but there is a growing focus on improving these issues through various initiatives.
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Because of its prevalence and high mortality rate, cancer is a major public health challenge. Radiotherapy is an important treatment option, and makes extensive use of medical imaging. Until now, this type of tool has been reserved to professionals, but it is now opening up to wider use, including by patients themselves for educational purposes.

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The orbital ordering (OO) resulting from the partial occupancy of the subshell of the transition metals in KBF (B = Sc, Ti, Ffe, Co) perovskites, and the many possible patterns arising from the coupling between the B sites, have been investigated at the quantum mechanical level ( Gaussian type basis set, B3LYP hybrid functional) in a 40 atoms supercell. The numerous patterns are distributed into 162 classes of equivalent configurations. For each fluoroperovskite, one representative per class has been calculated.

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Self-incompatibility studies have revealed a potential use of Tunisian apple resources for crop improvement and modern breeding programs and a likely correlation between the pollen tube growth and flowering period. Apples [Malus domestica. Borkh] exhibit an S-RNase-based gametophytic self-incompatibility (GSI) system.

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  • - A study involving 167 infertile patients identified bi-allelic mutations in the CCDC146 gene, linked to a condition known as multiple morphological abnormalities of the flagellum (MMAF) affecting sperm structure.
  • - Researchers developed a knock-out mouse model, which showed that male mice lacking CCDC146 were infertile and had sperm characteristics similar to those of the mutated patients.
  • - CCDC146 is important for the proper formation of sperm structures like the axoneme and other microtubule-related organelles, highlighting its role as a microtubule inner protein (MIP) that can lead to infertility when mutated.
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  • * Researchers discovered homozygous variants linked to the condition in four unrelated patients, which disrupted the localization of certain proteins essential for sperm flagellum function.
  • * The study identified ZMYND12 as a new gene associated with asthenoteratozoospermia, which forms a complex with other proteins critical for sperm motility, affecting male fertility.
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Telomere phages are a small group of temperate phages, whose prophages replicate as a linear plasmid with covalently closed ends. They have been isolated from some and from bacterial species living in aquatic environments. Phage PY54 was the first () telomere phage isolated from a nonpathogenic O:5 strain, but recently a second telomeric phage (vB_YenS_P840) was isolated from a tonsil of a wild boar in Germany.

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The frequent use of an industrial dye such as malachite green (MG) has caused major water body deterioration and is one of the most pressing global challenges, demanding effective treatment techniques. To solve these issues, a simplistic method was developed to synthesize zinc-tungstate (ZnWO) nanoparticles and also dope the surface matrix of the ZnWO nanoparticles using nonmetals of boron (B), carbon (C), and nitrogen (N) at different ratios for enhanced MG removal from wastewater. The prepared nanomaterials were characterized by different methods for crystal structure composition, surface properties, surface morphology, microstructures, functional groups, and elemental oxidation states.

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Drug treatment and rehabilitation programs are one of the initiatives to alleviate the global epidemic of drug addiction. The efforts were undertaken by everyone, particularly the government. However, the rising number of drug relapses among patients or clients ponders the effectiveness of the drug treatment and rehabilitation programs implemented in the country.

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This study aimed to investigate the effect of wormwood and rosemary supplementation on some reproductive traits of Barbarine rams. The experiment lasted 2 months. Twenty-four adult rams were divided into four groups ( = 6) balanced for the weight (53.

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