Publications by authors named "Aman S"

Using the solid-state reaction technique, varied YSiO phosphors activated by europium (Eu) ions at varied concentrations were made at calcination temperatures of 1000 °C and 1250 °C during sintering in an air environment. The XRD technique identified the monoclinic structure, and the FTIR technique was used to analyze the generated phosphors. Photoluminescence emission and excitation patterns were measured using varying concentrations of Eu ions.

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  • Acute arboviral infections, especially dengue, affect millions in tropical regions, with Asia being the most impacted; Bangladesh faced a major outbreak in 2019, prompting an extensive study in Dhaka.
  • The study, conducted across three medical centers, involved nearly 2000 participants to explore clinical variations in severe dengue and to identify serotypes, enhancing understanding of the virus's behavior.
  • Results indicated that severe cases were predominantly in younger males, with digestive symptoms more common in severe cases, while a small percentage of patients experienced fatal outcomes, highlighting the serious health and socioeconomic burden of dengue.
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In the past few decades, there has been a gradual increase in breast reconstruction post mastectomy; however, there exists a conflict about whether race has an influence on reconstruction rates. We conducted an electronic search from MEDLINE and Cochrane CENTRAL from their inception to September 2022. Primary outcome was disparity in rates of Immediate Breast Reconstruction (IBR) in racial minorities.

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The recent high-energy density sodium (Na) metal batteries (SMBs) are restricted by their processability, lifetime, and safety. These issues can be addressed by controlling the reactions at the Na metal by modifying the Na metal anode (SMA) with the sodiophilic hosts. Herein, a multifunctional NaSe/Zn-Mn skeleton is introduced for SMA and fabricate a processable Na@NaSe/Zn-Mn composite using repeated cold rolling/folding approach through the spontaneous reaction between Na metal and ZnMnSe alloy.

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  • Corneal diseases are increasingly problematic, especially in areas with limited eye care resources, but AI can help automate their diagnosis and management.
  • This review highlights AI’s effectiveness in diagnosing various corneal conditions, showing it often surpasses human accuracy by using combined imaging and clinical data.
  • Although there are challenges like diverse patient populations and the complexity of AI models, advancements in explainable AI and better data handling can improve the situation.
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Background And Purpose: Emergence of fungi as a pathogenic threat presents a significant challenge to public health, notably in intensive care units (ICUs) and among immunocompromised patients. Various factors, including sepsis-induced barrier disruptions, immune system dysfunction, and extremes of age, contribute to increased susceptibility to fungal infections. Hospital practices, such as prolonged surgeries, broad-spectrum antibiotic use, and invasive procedures, further exacerbate the risk.

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Pressure sore is an important post-stroke complication that results in increased morbidity, mortality and poor prognosis of the patients. The objective of the present study was to find out the prevalence and the factors associated with pressure sore among stroke patients. This prospective cross-sectional study includes 50 stroke patients admitted in the Department of Neurology of Dhaka Medical College Hospital, Bangladesh from July to December 2018.

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Background: With the rapid advancement of information technology, search engine optimisation (SEO) has become crucial for enhancing the visibility and relevance of online content. In this context, the use of cloud platforms like Microsoft Azure is being explored to bolster SEO capabilities.

Methods: This scientific article offers an in-depth study of search engine optimisation.

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  • The text discusses the rising prevalence of microbial infections and antibiotic resistance, posing significant challenges to healthcare despite medical advancements.
  • It emphasizes the importance of novel heterocyclic compounds, particularly quinolones, in designing new anti-infective agents to combat resistant pathogens.
  • The article reviews recent research on quinolone derivatives, focusing on their structure-activity relationships (SAR) and various anti-infective properties, while also noting recent patents on these compounds.
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Background Objectives: Bangladesh is afflicted with periodic dengue outbreak every few years and one of the worst upsurges was recorded in 2019 during which there was an increasing trend of dengue with unusual symptoms which were not so common before. This study aims to describe the experience of three tertiary care centres of Dhaka regarding the clinical and laboratory, hospital outcome and management profile of the Expanded Dengue Syndrome (EDS) cases admitted from the 2019 outbreak.

Methods: The current work was a cross-sectional observational study which took place from August 1 to December 31 2019 at three major tertiary care centres in Dhaka, Bangladesh.

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Transition-metal oxide has been identified as an auspicious material for supercapacitors due to its exceptional capacity. The inadequate electrochemical characteristics, such as prolonged cycle stability, can be ascribed to factors, such as low electrical conductivity, sluggish reaction kinetics, and a deficiency of active sites. The transition-metal oxides derived from the MOF materials offer a larger surface area with enriched active sites and a faster reaction rate along with good electrical conductivity.

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Background: is the most adapted tree species in different medicinal eco-systems and has resilience against climate changes. This multiple-use tree provides healthy foods, snacks, honey, and fuel. Besides this, it has immense promising applications by offering antimicrobial and antibacterial activities for targeted uses.

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Background Context: A not uncommon finding following spine surgery is that many patients do not achieve mental health improvement up to population norms for their age cohort, despite improvement in pain and functioning.

Purpose: This study examined how patients who were categorized as depressed versus not depressed think about health-related quality of life as assessed by cognitive-appraisal processes. It examined cross-sectional and longitudinal differences over 12 months postsurgery.

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A genomic understanding of the oncogenic processes and individual variability of human cancer has steadily fueled improvement in patient outcomes over the past 20 years. Mutations within tumour tissues are routinely assessed through clinical genomic diagnostic assays by academic and commercial laboratories to facilitate diagnosis, prognosis and effective treatment stratification. The application of genomics has unveiled a wealth of mutation-based biomarkers in canine cancers, suggesting that the transformative principles that have revolutionized human cancer medicine can be brought to bear in veterinary oncology.

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Objective: This review aims to explore the impact of the COVID-19 pandemic on mental health, with a focus on the physiological and psychological consequences, including comorbidities. The goal is to understand the direct and indirect populations affected by mental distress and identify potential interventions.

Methodology: A comprehensive literature search was conducted using various databases, including Google Scholar, ResearchGate, ScienceDirect, PubMed, PLoS One, and Web of Science.

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The gaseous hormone ethylene is perceived in plants by membrane-bound receptors, the best studied of these being ETR1 from Arabidopsis. Ethylene receptors can mediate a response to ethylene concentrations at less than one part per billion; however, the mechanistic basis for such high-affinity ligand binding has remained elusive. Here we identify an Asp residue within the ETR1 transmembrane domain that plays a critical role in ethylene binding.

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The emergence of drug-resistant microbial pathogens is a matter of global concern and become more serious if they linked with healthcare-associated infections (HAIs). As per World Health Organization statistics, multidrug-resistant (MDR) bacterial pathogens account for between 7 and 12% of the worldwide burden of HAIs. The need for an effective and environmentally sustainable response to this situation is urgent.

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Introduction: It has been known for over half a century that mixing an antigen with its cognate antibody in an immune complex (IC) can enhance antigen immunogenicity. However, many ICs produce inconsistent immune responses, and the use of ICs in the development new vaccines has been limited despite the otherwise widespread success of antibody-based therapeutics. To address this problem, we designed a self-binding recombinant immune complex (RIC) vaccine which mimics the larger ICs generated during natural infection.

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Unlabelled: Bacterial infection is a major crisis of 21st era and the emergence of multidrug resistant (MDR) pathogens cause significant health problems. We developed, green chemistry-based silver nanoparticles (G-Ag NPs) using fruit peel extract. G-Ag NPs has a spherical shape in the range of ~ 40 nm with a surface charge of - 31 Mv.

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Article Synopsis
  • - The study examines the structural, electronic, elastic, and magnetic properties of Cerium Copper Manganese Vanadium (CeCuMnVO) compounds using Density Functional Theory (DFT) with various potentials, showing how lattice parameters increase with manganese substitution due to larger atomic radii.
  • - Results suggest that CeCuVO is the most stable compound thermodynamically, and substituting manganese for copper transforms the material from non-magnetic to anti-ferromagnetic while also altering its electrical resistance, indicating semi-metallic behavior.
  • - The elastic properties reveal mechanical stability, anisotropy, and ductility, which highlight the potential for these manganese-based compounds to be used in spintronic applications and magnetic cloaking devices.
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It is common knowledge that the O evolution reaction (OER) is a crucial half-reaction in the electrolysis of water. However, it is currently difficult to create inexpensive OER electrode materials in a way that is efficient, simple, and environmentally friendly. In this research, metal oxy-hydroxides with numerous oxygen defects (M-OOHv) are created at surface of Cu foam (CF) using a unique, straightforward electro-oxidation reconstitution (ER) process.

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Objective: The need for telemedicine was felt more than ever during the COVID-19 pandemic, which impacted health care worldwide. Therefore, this study aimed to determine the difficulties faced by patients in visiting the cardiac outpatient department during COVID-19, along with assessing the awareness and acceptability of telemedicine.

Methods: In this cross-sectional study, selected patients presenting to outpatient department of a tertiary care cardiac hospital were interviewed regarding the difficulties faced by patients in visiting the outpatient department during COVID-19 and their awareness and acceptability of telemedicine using a self-designed structured questionnaire.

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The structural, electrical, and magneto-elastic properties of lanthanide base nitride (Ln = Dy-Lu) anti-perovskites were investigated using density functional theory (DFT). The reported structural outcomes are consistent with the experiment and decrease from Dy to Lu due to the decrease ofatomic radii of Ln atoms. According to the electronic band profile, the metallic characteristics of these compounds are due to the crossing over of Ln-f states at the Fermi level and are also supported by electrical resistivity.

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