Publications by authors named "Md M Hasan"

Abscisic acid (ABA) mediated stomatal closure is a highly effective mode of active stomatal regulation under drought stress. Previous studies on stomatal regulation have primarily focused on the leaves of vascular plants, while research on the stomatal behavior of bulbous plants remains unknown. In addition, ABA-induced stomatal regulation in bulbs has yet to be explored.

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This study investigated a composite material combining epoxy with hybrid jute (J) and glass (G) fibers. A straightforward and effective fabrication method was employed, utilizing five layers with various reinforcement materials. To identify the optimal combination, a comprehensive series of tests were conducted using a range of characterization instruments, including Scanning Electron Microscopy (SEM), Universal Testing Machine (UTM), pendulum impact tester, density measurement, specific gravity evaluation, water absorption, and swelling thickness tests.

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The environmental burden of tannery wastewater, characterized by high levels of total dissolved solids (TDS) and other contaminants, presents a significant challenge for sustainable water management. This study addresses this issue by developing a novel polyvinyl alcohol (PVA) and polyvinyl chloride (PVC) composite membrane optimized for efficient TDS removal from tannery effluent. The membrane was fabricated using a solution casting technique, with glutaraldehyde employed as a crosslinking agent to enhance mechanical properties and stability.

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Abscisic acid (ABA) and ethylene are two essential hormones that play crucial roles throughout the entire plant life cycle and in their tolerance to abiotic or biotic stress. In recent decades, increasing research has revealed that, in addition to their individual roles, these two hormones are more likely to function through their interactions, forming a complex regulatory network. More importantly, their functions change and their interactions vary from synergistic to antagonistic depending on the specific plant organ and development stage, which is less focused, compared and systematically summarized.

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The tightly bound excitons and strong dipole-dipole interactions in two-dimensional molecular crystals enable rich physics. Among them, superradiance (SR), the spontaneous coherent emission from bright excitons, has sparked considerable interest in quantum-information applications. In addition, optically forbidden states (dark exciton states) have potential to both achieve Bose-Einstein condensation and modulate exciton dynamics.

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The next generation of autonomous-legged robots will herald a new era in the fields of manufacturing, healthcare, terrain exploration, and surveillance. We can expect significant progress in a number of industries, including inspection, search and rescue, elderly care, workplace safety, and nuclear decommissioning. Advanced legged robots are built with a state-of-the-art architecture that makes use of stereo vision and inertial measurement data to navigate unfamiliar and challenging terrains.

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The main focus of this research is to explore the properties and photovoltaic application of AgCdF, and hence, initially, the CASTEP software was used in this study to assess the structural, optical, mechanical, and electrical characteristics of the AgCdF perovskite absorber layer within the context of the density functional theory (DFT) method. AgCdF resulting from the structural research is confirmed to be chemically and thermodynamically stable by the estimated tolerance factor and formation enthalpy. According to the band structure analysis, AgCdF is an indirect band gap semiconductor with a band gap of 1.

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We report the complete mitochondrial genome sequence of the giant freshwater prawn () from Bangladesh. The circular genome is 15,766 base pairs long, with a GC content of 38.1%, and contains 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and 1 control region.

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This research aims to isolate, characterize, and analyze pure compounds from leaf extract to investigate its antibacterial, antidiabetic, cytotoxic, and phytotoxic effects. Fresh leaves were collected, dried, and subjected to methanol extraction to obtain a crude extract. From the petroleum ether fraction (PEF) of this extract, three fractions-designated LM1, LM2, and LM3-were prepared using column chromatography.

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Purpose Of The Review: SARS-CoV-2 undergoes genetic mutations like many other viruses. Some mutations lead to the emergence of new Variants of Concern (VOCs), affecting transmissibility, illness severity, and the effectiveness of antiviral drugs. Continuous monitoring and research are crucial to comprehend variant behavior and develop effective response strategies, including identifying mutations that may affect current drug therapies.

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  • Quasi-phase matching (QPM) is a technique in nonlinear optics that improves frequency conversion processes but traditionally requires specific ferroelectric crystals that are hard to obtain.* -
  • Researchers demonstrated QPM using 3R-MoS, a type of transition metal dichalcogenide with unique properties, achieving enhanced second harmonic generation (SHG) and spontaneous parametric down-conversion (SPDC) for better entangled photon pair generation.* -
  • The ability to adjust the stacking of 3R-MoS layers provides a flexible platform for tuning the phase-matching conditions, opening up new possibilities in nonlinear optics and quantum technology applications.*
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The radon (Rn) and thoron (Tn) concentrations and other environmental parameters were measured in the vicinity of active faults in two regions with different geology structure of Japan. The range of measured values was from 1.2 to 74 kBq m$^{-3}$, 1.

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Background: Globally, over 81 million people use e-cigarettes, and the majority of them are young adults. Using e-cigarettes causes different types of adverse health effects both in adults and elderly people. Over time, using e-cigarettes has detrimental consequences on lung function, brain development and numerous other illnesses.

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Distributed generation (DG) systems are becoming more popular due to several benefits such as clean energy, decentralization, and cost effectiveness. Because the majority of renewable energy sources provide DC power, power electronic inverters are necessary for their conversion from DC to AC power. To fulfill this demand, the next generation power inverter employs innovative technologies while simultaneously assuring stability and resilience.

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  • The study investigates the differences in lactate levels between diarrheal patients suffering from septic shock and hypovolemic shock after they receive their first fluid resuscitation.
  • Septic shock and hypovolemic shock both lead to low blood pressure and organ dysfunction, but they have different underlying causes, necessitating accurate diagnosis.
  • Conducted over 19 months at Dhaka Hospital, the research involved critically ill adults, measuring lactate levels using StatStrip Lactate meters to potentially improve bedside testing and diagnosis for these serious conditions.
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This research employs first-principles simulations to systematically study the structural, elastic, electronic mechanical, and optical characteristics of lead free halide RbAgBiX (X = Br, Cl) perovskites under pressure. The computed structural parameters are in good agreement with previous experimental and theoretical results. The obtained elastic constants met the Born stability requirements, showing that our materials are mechanically stable at variable hydrostatic pressures, as supported by the computed negative formation energy values.

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  • Bangladesh has faced over 560 H5N1 outbreaks in poultry since 2007, primarily affecting commercial chicken farms that use imported vaccines which may not align with local virus strains.
  • A study examined the effectiveness of these vaccines by sampling feces from vaccinated and unvaccinated chicken farms across the country, finding only a small percentage of farms tested positive for the virus.
  • Results indicated that vaccinated farms had a lower detection of H5N1 virus, but due to low vaccination rates and limited positive samples, the overall effectiveness of the vaccine in reducing viral shedding remains uncertain.
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Background/objectives: UBL3 (Ubiquitin-like 3) is a protein that plays a crucial role in post-translational modifications, particularly in regulating protein transport within small extracellular vesicles. While previous research has predominantly focused on its interactions with α-synuclein, this study investigates UBL3's role in Huntington's disease (HD). HD is characterized by movement disorders and cognitive impairments, with its pathogenesis linked to toxic, polyglutamine (polyQ)-expanded mutant huntingtin fragments (mHTT).

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Schiff base ligands, formed from primary amines and carbonyl compounds, are potential antioxidants because they scavenge 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals hydrogen atom transfer (HAT) and single electron transfer (SET) routes. This review aims to help design, synthesize, and discuss the antioxidant activity of Schiff base ligands based on their structure. This study critically discussed the solvent effect and the structural changes of Schiff base ligands responsible for DPPH scavenging activity, such as proton donating, electron-donating, and electron-withdrawing substituents, conjugation and ring structure.

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Purpose: Customer value co-creation behavior is promising but undertheorized. To bridge this gap, this study examines the viability of a social cognitive theory positing that customers' value co-creation behavior is shaped by their co-creation experience, self-efficacy, and engagement.

Design/methodology/approach: Using healthcare as a case, a stratified random sample comprising 600 patients from 40 hospitals across eight metropolitan cities in an emerging economy was acquired and analyzed using co-variance-based structural equation modeling (CB-SEM).

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A novel concept in the realm of conventional electricity grids, known as the "smart grid," has emerged to explore the most effective methods for integrating green and renewable energy sources. By leveraging existing technologies for its communication network, the Smart Grid also inherits their associated drawbacks. Exploiting these vulnerabilities can lead to severe consequences such as privacy breaches, cascading failures, or even system-wide blackouts.

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Elevated atmospheric heat is considered as one of the bottlenecks for global wheat production. Screening potential wheat genotypes against heat stress and selecting some suitable indicators to assist in understanding thermotolerance could be crucial for sustaining wheat cultivation. Accordingly, 80 diverse bread wheat genotypes were evaluated in controlled lab condition by imposing a week-long heat stress (35/25 C D/N) at the seedling stage.

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  • * Researchers analyzed data from nearly 38,000 patients who started buprenorphine treatment in Massachusetts between 2015 and 2019, considering various characteristics of both patients and their prescribers.
  • * Results showed high rates of poor medication continuity (59.7%) and treatment discontinuation (57.4%), along with a notable percentage of patients experiencing opioid overdose (10.3%) within the first year of treatment.
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  • Every year, around 20 million neonates are born with low birth weight (LBW), mostly in low- and middle-income countries, but specific factors affecting LBW in rural Bangladesh are poorly understood.
  • This study surveyed 4,651 children under 5 years old to examine the relationship between socioeconomic status and maternal dietary diversity, finding a 13.5% prevalence of LBW which varied significantly across wealth groups.
  • Results indicated that mothers from poorer households are more likely to have LBW babies, and those with inadequate dietary diversity show a higher risk, especially adolescent mothers, who are significantly affected by poor nutrition.
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