Publications by authors named "K S Usha"

Background:  Alzheimer disease (AD) leads to cognitive decline and alters functional connectivity (FC) in key brain regions. Resting-state functional magnetic resonance imaging (rs-fMRI) assesses these changes using static-FC for overall correlation and dynamic-FC for temporal variability.

Objective:  In AD, there is altered FC compared to normal conditions.

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Article Synopsis
  • Characterization techniques such as FTIR, TGA, XRD, and FESEM were used to analyze the properties of the polymer network, while DSC was employed to study its interaction with the drug.
  • The gel, loaded with the anti-diabetic drug Metformin Hydrochloride, demonstrated complete drug release in acidic and neutral pH conditions within 6 to 10 hours, indicating a non-Fickian diffusion process according to Korsmeyer-Peppas model.
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Drug repurposing is a strategy to identify new therapeutic uses for marketed drugs, discontinued or shelved drugs, and drug candidates in clinical development. Drug repurposing has gained momentum over the past few years. A slow rate of new drug discovery and higher cost of new drug development attracted the attention for repurposing and repositioning of old medications .

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A major problem in world health care is the development of antibiotic resistance in bacteria. In light of this, pure and calcium-doped zinc tin oxide (ZTO) nanoparticles, ZnSnO (S), ZnSnCaO (S), ZnSnCaO (S), and ZnSnCaO (S), were synthesized via simple and cost effective microwave assisted method. The doping effect on antibacterial activity was studied in detail.

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Background: One of the neurodevelopmental disorders widely affecting school-aged children in recent years is attention deficit hyperactivity disorder (ADHD). In many neurodevelopmental disorders, grey matter may be used as a clinical indicator by looking at MRIs.

Objective: The study aimed to segment grey matter from brain MRI using a proposed fuzzy c-means clustering-based technique for the detection of ADHD and its subtypes (ADHD-Inattentive, ADHDHyperactive, and ADHD-Combined).

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