Prevalence and Antimicrobial Resistance Patterns of Escherichia coli Isolated From Broiler Chickens in Sylhet District of Bangladesh.

The emergence of antimicrobial resistance (AMR) Escherichia coli in poultry farming is a growing global public health concern, particularly in Bangladesh, where the use of antibiotics remains largely unregulated. This study aimed to determine the prevalence and AMR patterns of E. coli isolated from broiler chickens in Sylhet district of Bangladesh and to investigate the network of coexisting resistance traits among the isolates.

Design of Cu/Zr Alloy Interface for Enhanced Thermal Fatigue Performance in Electronic Packaging.

This study addresses a critical limitation in direct bonded copper (DBC) materials used in power electronics by introducing a copper-zirconium (Cu/Zr) alloy interposing layer at the copper-ceramic interface. This novel design aims to mitigate mechanical stress induced by mismatched material properties, such as the coefficient of thermal expansion (CTE) and elastic modulus, during thermal cycling. The key findings of this study are (1) thermal fatigue improvement: Test samples with the Cu/Zr interface layer (Cu-Cu/Zr-AlN) three times enhanced thermal fatigue resistance, surviving 30 thermal cycles from -55 to 300 °C before delamination, while standard DBC substrates without the Cu/Zr layer failed after just 10 cycles, indicating a performance improvement with the Cu/Zr alloy, (2) durability projections: Based on the Coffin-Manson model, if the upper temperature is capped at 150 °C, the Cu-Cu/Zr-AlN substrates are projected to survive approximately 1372 cycles, underscoring their potential for long-term reliability, and (3) stress mitigation: The Cu/Zr alloy layer bridges the CTE disparity between copper and ceramic, reducing mechanical stress and improving structural integrity across a broad temperature range (-55 to 300 °C).

Harnessing volatile organic compound biomarkers for early cancer detection: molecular to nanotechnology-based approaches.

Early-stage cancer diagnosis is considered a grand challenge, and even though advanced analytical assays have been established through molecular biology techniques, there are still clinical limitations. For example, low concentration of target biomarkers at early stages of cancer, background values from the healthy cells, individual variation, and factors like DNA mutations, remain the limiting factor in early cancer detection. Volatile organic compound (VOC) biomarkers in exhaled breath are produced during cancer cell metabolism, and therefore may present a promising way to diagnose cancer at the early stage since they can be detected both rapidly and non-invasively.

TXNIP promotes ferroptosis through NCOA4 mediated ferritinophagy.

Ferroptosis is a recently discovered lytic form of cell death that is triggered by iron-driven excessive lipid peroxidation and depletion of glutathione and glutathione peroxidase-4 (GPX4). This form of cell death has been linked to a wide range of conditions from cancer to neurodegenerative diseases. Using murine hippocampal HT22 neurons, we aimed to investigate the underlying mechanisms of glutamate-mediated ferroptosis.

Potential predictors of COVID-19 booster vaccine confidence among adult people: a cross-sectional analysis amid the Omicron surge in Southern Bangladesh.

Despite the therapeutic potential of the primary vaccine series, a lack of confidence in the COVID-19 booster vaccine poses a threat to public health and undermines its coverage at the national, regional, and global levels. This study aimed to understand COVID-19 booster vaccine confidence (CBVC) among Bangladeshi adults aged 18-49 and the potential predictors of CBVC. In line with STROBE guidelines, a face-to-face cross-sectional survey was conducted from June 15 to August 31, 2023 during the spread of the SARS-CoV-2 Omicron variant.