999 results match your criteria: "Chittagong University of Engineering & Technology[Affiliation]"

The resilience of established business strategies has been tested in the wake of recent global supply chain upheavals triggered by events like the COVID-19 pandemic, Russia-Ukraine combat, Hamas-Israel war, and other geopolitical conflicts. Organizations are compelled to integrate sustainable practices into their supply chains to navigate the complexities of the post-COVID-19 era and mitigate the far-reaching consequences of such disruptions. However, exploring supply chain imperatives from sustainability dimensions still remains underexplored, presenting a significant research gap, particularly in the fashion retail sector.

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This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal).

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Isolation, Structure Elucidation, and Bioactivity Evaluation of Two Alkaloids From H. Stem: A Traditional Medicinal Spice and Its Chemico-Pharmacological Aspects.

Food Sci Nutr

December 2024

Key Laboratory of Joint Diagnosis and Treatment of Chronic Liver Disease and Liver Cancer of Lishui, Central Laboratory of The Lishui Hospital of Wenzhou Medical University The First Affiliated Hospital of Lishui University, Lishui People's Hospital Lishui Zhejiang China.

Bangladesh is endowed with an abundance of excellent medicinal plant resources. A well-known traditional medicinal plant H. from the Piperaceae family is rich in bioactive phytochemicals that have antidiarrheal, antimicrobial, analgesic, antioxidant, anticancer, and cytotoxic effects.

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Tryptanthrin and its derivatives, representing a type of alkaloids with indoloquinazoline structures, were first obtained from blue plants and indigo, and then extracted from fungi, marine bacteria and a number of many other natural sources. Various strategies for their chemical synthesis have been reported while tryptanthrin biosynthesis has been less investigated. Tryptanthrin and its derivative products have a broad range of pharmacological and biological functions.

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The agriculture sector is confronted with numerous challenges in the quest for accurate crop yield estimation, which is essential for efficient resource management and mitigating food scarcity in a rapidly growing global population. This research paper delves into the application of advanced Artificial Intelligence (AI) techniques to enhance crop yield estimation in the context of diverse agricultural challenges. Through a systematic literature review and analysis of relevant studies, this paper explores the role of AI methods, such as Machine Learning (ML) and Deep Learning (DL), in addressing the complexities posed by geographical variations, crop diversity, and cultivation areas.

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The present investigation "Effect of essential oils and chia seed () in fortification of pineapple jam." was conducted during the year 2022-2023 at the Post harvest laboratory of Horticulture Department, Sher-e-Bangla Agricultural University, Dhaka. The study investigated the effects of essential oil and chia seeds on the quality of pineapple jam.

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This research presents an explicit analysis of the effects of sintering temperature (T) on the structural, morphological, magnetic, and optical properties of CuMgFeO nanoferrites synthesized via the sol-gel method. To accomplish it, Cu-Mg ferrite NPs were sintered at temperatures ranging from 300 to 800 °C in increments of 100 with a constant holding duration of 5 h. Thermogravimetric analysis was used to observe the degradation of organic components and the thermally stable zone of the material.

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Najas gracillima, a marine seaweed found in North America and Asia, was investigated for its neuropharmacological and antidiarrheal properties. Acetone extracts of N. gracillima (ANG) were analyzed using both in vivo and in silico methods.

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Variations in Furin SNPs, a Major Concern of SARS-CoV-2 Susceptibility Among Different Populations: An - Approach.

Bioinform Biol Insights

December 2024

Laboratory of Microbial Genomics and Metabolic Engineering, Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chattogram, Bangladesh.

COVID-19 caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) had an adverse effect globally because it caused a global pandemic with several million deaths. This virus possesses spike protein that is cleaved or activated by Furin-like protease enzymes occurring by mammalian lung or respiratory cells to enter the mammalian body. The addition of the Furin cleavage site in SARS-CoV-2 makes it a more infectious and emerging virus than its ancestor's viruses.

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Background: Schott and Hook.f. are two commonly found vegetable species of the genus , found mainly in the Asian region.

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Shipbreaking is an extremely profitable business; however, it simultaneously destroys the surrounding environment. The discharge of toxic chemicals and materials containing wastes is contaminating surrounding water. However, there is still no sufficient published information particularly focusing on shipbreaking yard (SBY) water quality.

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In recent decades, Alzheimer's disease (AD) has garnered significant attention due to its rapid global prevalence. The cholinergic hypothesis posits that the degradation of acetylcholine by acetylcholinesterase (AChE) contributes to AD development. Despite existing anti-AChE drugs, their adverse side effects necessitate new agents.

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The dataset at hand is a unique resource, officially procured from the Bangladesh Meteorological Department, the sole government institution that diligently monitors weather through 35 strategically placed weather stations across the nation. This dataset is a treasure trove of actual data spanning several decades, from the inception of each weather station to the present. It has been meticulously restructured and processed into four (Rainfall, Temperature, Humidity, and Sunshine) key weather parameters, presented in a highly organized and accessible format.

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Extracellular vesicles (EVs) play important roles in intercellular communication in various biological events. In particular, EVs released from cancer cells have attracted special attention. Although it has been reported that cancer-associated glycosphingolipids play important roles in the enhancement of malignant properties of cancer cells, the presence, behavior, and roles of glycosphingolipids in EVs have not been elucidated.

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Article Synopsis
  • The paper introduces a novel metamaterial absorber design using a bent Y-shaped structure on an FR-4 substrate with copper, achieving over 90% absorption across a range of frequencies from L-band to K-band (3.728 GHz to 22.664 GHz).
  • Through simulations, it identifies eight resonant frequencies, highlighting the design's versatility for reducing electromagnetic radiation.
  • Additionally, the research discusses the implications of near-zero refractive index metamaterials and their potential for advanced wave control, emphasizing the absorber's polarization insensitivity and unique electromagnetic properties that challenge existing theories.
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This study investigated nine trace metals (Cr, Co, Cu, Cd, Ni, Mn, Fe, Zn, and Pb) concentrations of coastal sediments adjacent to a heavily industrialized area of Bangladesh using AAS. The most prevalent metals were zinc, with lesser amounts of Cd and Co. Pb, and Cd levels were higher than world standards, with a considerable enrichment of Pb at station 9.

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Screening and identification of multiple antibiotic- resistant genes containing Typhi from drinking water: A severe public health concern in Bangladesh.

Heliyon

November 2024

Laboratory of Microbial and Cancer Genomics, Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chittagong, 4331, Bangladesh.

Article Synopsis
  • * Out of 150 water samples, 8 isolates of Typhi were confirmed, revealing a troubling finding of antibiotic-resistant genes in all these isolates, which poses a threat to effective treatment.
  • * Multidrug resistance (MDR) was confirmed in 87.5% of the isolates, indicating a widespread issue of antibiotic resistance, necessitating urgent action to prevent further transmission through contaminated water.
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Lubricating oil disposal is considered hazardous waste and has adverse effects on the environment and human health. It is crucial to implement tight measures to regulate and minimize these impacts, or explore opportunities for oil regeneration. The paper offers an extensive review of worldwide demand for lubricating oil and its market share, with a specific emphasis on the viewpoint of Bangladesh.

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This research elucidated the hypoglycemic effect correlated with DNA-protective and antioxidative activity of Lasia spinosa stem aqueous extract (LSSAE) using streptozotocin-induced type 2 diabetic rat models. LSSAE, characterized by phytochemical screening, gas chromatography-mass spectroscopy (GC-MS), and FTIR analyses, was investigated for its DNA-protective activity by exposing PBR322 plasmid DNA to Fenton's reagents. Long Evans rats, treated by LSSAE, were found to be improved for body weight, fasting blood glucose level, and oral glucose load.

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Spatial distribution of heavy metal in sands and sediments of Parki Beach, Chattogram, Bangladesh.

Environ Monit Assess

November 2024

Applied Physics and Radiation Technologies Group, CCDCU, School of Engineering and Technology, Sunway University, Bandar Sunway, Selangor, 47500, Malaysia.

To assess the sources, levels, spatial distributions and exposure to human health, the concentration of heavy metals Pb, Cu, Mn, Zn, and Fe in the sand/sediment of the Parki Beach area of Anowara, Chattogram, Bangladesh are determined using Atomic Absorption Spectroscopy (AAS) for the first time. A total of 40 surface and subsurface sand and sediment samples were collected from 20 different sampling points along the 15 km long Parki Beach area, Bangladesh. Average concentrations of Pb, Cu, Mn, Zn and Fe in surface samples are 14.

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Article Synopsis
  • Multidrug-resistant bacteria, especially ESBL-producing strains like Klebsiella pneumoniae, are a major global health threat, with this study focusing on Kp04, a clinical isolate from Bangladesh.
  • The investigation revealed high antibiotic resistance, with five isolated K. pneumoniae strains being resistant to 14 out of 21 tested antibiotics while only being sensitive to three specific ones.
  • Whole-genome sequencing of Kp04 identified 75 genes associated with ESBL, virulence, and multiple drug resistance, highlighting similarities in virulence and resistance among isolates from Dhaka and Chattogram, indicating possible transmission of these strains in the region.
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Cyclotriazadisulfonamide (CADA) is a macrocyclic compound known for its unique mechanism in inhibiting HIV infection by downregulating the CD4 T-cell receptor, a crucial entry point for the virus. Unlike other antiretrovirals, CADA exhibits activity against a wide range of HIV strains, as all HIV variants require CD4 binding for infection. Furthermore, CADA has shown a synergistic effect with clinically approved anti-HIV drugs, offering potential for enhanced therapeutic strategies (Vermeire & Schols, [65]).

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Parkinson disease is a neurogenerative disease common in adults and results in different kinds of memory dysfuntions. This study evaluated the monoamine oxidase B (MAO-B) inhibitory potential of kaurane diterpenoids previously isolated from Xylopia aethiopica through comprehensive computational approaches. Molecular docking study and molecular dynamics simulation were used to access the binding mode and interaction of xylopic acid and MAO-B enzyme.

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A significant turning point in the search for environmentally friendly energy storage options is the switch from lithium-ion to sodium-ion batteries. This review highlights the potential of sodium-ion battery (NIB) technology to address the environmental and financial issues related to lithium-ion systems by thoroughly examining recent developments in NIB technology. It is noted that sodium is more abundant and less expensive than lithium, NIBs have several benefits that could drastically lower the total cost of energy storage systems.

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