Publications by authors named "Aravinda C"

Article Synopsis
  • Plasma cells, derived from B lymphocytes in the bone marrow, are important white blood cells that produce antibodies, helping combat bacteria and viruses and prevent inflammation.
  • The study presents a new model combining ResNet and UNet networks for effective segmentation and analysis of white blood cells (leukocytes) from blood samples, overcoming challenges in image processing.
  • Experimental results demonstrate that this model achieves approximately 96% segmentation accuracy, outperforming previous methods like DeepLabV3+ and ResNet-50 in diagnosing blood diseases.
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The most common human parasite as per the medical experts is the malarial disease, which is caused by a protozoan parasite, and Plasmodium falciparum, a common parasite in humans. A microscopist with expertise in malaria diagnosis must conduct this complex procedure to identify the stages of infection. This epidemic is an ongoing disease in some parts of the world, which is commonly found.

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Article Synopsis
  • Apathy is a condition where elderly individuals show low motivation, which isn’t linked to cognitive issues or emotional distress, and diagnosing it typically requires inconvenient clinic visits.* -
  • The study explored using doppler radar imaging to classify apathy in 178 elderly participants by analyzing walking actions, with an emphasis on privacy over traditional cameras.* -
  • A neural network model achieved over 75% accuracy in classifying apathy from radar images, indicating potential for future research, despite the need for improved accuracy.*
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Novel chemical and biological sensors based on a single poly(pyrrole)-NTA chelator nanotube for sensitive, selective, rapid and real-time detection of histidine-tagged protein and cupric ions are reported. NTA groups on the nanotube surface provided a simple mechanism for metal ion sensing via the high-affinity interaction between NTA and the subsequent detection of histidine-tagged protein through the coordination with metal chelated nanotube. Poly(pyrrole)-NTA chelator nanotubes of 190 nm outside diameter, 35 nm wall thickness and 30 microm long were synthesized by electrochemical polymerization of pyrrole-NTA inside a 200 nm diameter alumina template and assembled as a chemoresistive device by bottom-up contact geometry on a pair of parallel gold electrodes with a gap distance of 3 microm.

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The nanoscale electrocrystallization of pure Sb and the compound semiconductor AlSb on Au(111) has been studied by in situ scanning probe techniques (STM and STS) employing an ionic liquid electrolyte, {AlCl3-[C4mim]+Cl-} (1:1) containing SbCl3. The characteristic changes of the electronic structures with varying potentials have been probed for the first time by normalized differential conductance spectra, (dI/dU)/(I/U). In the underpotential deposition range of Sb the formation of two layers is observed.

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Underpotential deposition (UPD) of Ag on Au(111) has been studied with two different electrolytes: aqueous 0.1 M H2SO4 solution in comparison with the ionic liquid 1-butyl-3-methylimidazolium chloride BMICl + AlCl3. Of particular interest is the distinct behavior of 2D phase formation at both interfaces, which has been investigated by cyclic and linear sweep voltammetry in combination with in situ electrochemical scanning tunneling microscopy (STM).

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Aluminium antimonide nanoclusters with an apparent band gap energy of 0.92 +/- 0.2 eV have been electrodeposited from the neutral ionic melt AlCl3-1-butyl-3-methylimidazolium chloride {AlCl3-[C4mim]+Cl-} at room temperature and have been characterized in-situ by electrochemical scanning tunneling microscopy (STM) and spectroscopy (STS).

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Monodispersed Fe nanocrystals up to approximately 2 nm thick, approximately 50 nm wide and approximately 120 nm long have been electrodeposited from the ionic melt AlCl(3)-1-methyl-3-butylimidazolium chloride [AlCl3-[MBIm](+)Cl(-)] at room temperature on Au(111) and have been characterized in-situ by electrochemical scanning tunneling microscopy.

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