Publications by authors named "A V Gulyaev"

Article Synopsis
  • Acute appendicitis is a common surgical emergency where an inflamed appendix leads to abdominal pain, typically in the lower right quadrant.
  • Diagnosis involves a combination of patient history, physical examination, and imaging tests like ultrasound or CT scans.
  • Treatment usually requires an appendectomy, either laparoscopic or open surgery, and timely intervention can prevent complications like perforation.
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Article Synopsis
  • Bostrycoidin, a pigment from fungi, has pharmacological significance and indicates Fusarium infections in crops and soils.
  • Researchers used density functional theory (DFT) to investigate the molecular structure and properties of bostrycoidin, analyzing its most stable geometry and energy levels of various conformers.
  • The study successfully modeled the vibrational and electronic absorption spectra, with the calculated longest-wavelength transition aligning well with experimental results at approximately 498 nm.
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The quality of food is one of the emergent points worldwide. Many microorganisms produce toxins that are harmful for human and animal health. In particular, mycotoxins from Fusarium fungi are strictly controlled in cereals.

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It is known that maximal entropy random walks and partition functions that count long paths on graphs tend to become localized near nodes with a high degree. Here, we revisit the simplest toy model of such a localization: a regular tree of degree with one special node ("root") that has a degree different from all the others. We present an in-depth study of the path-counting problem precisely at the localization transition.

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Article Synopsis
  • * Optical techniques show promise for identifying these diseases quickly and cost-effectively, but it's essential to find specific spectral markers that indicate contamination.
  • * This study utilized various spectroscopy methods and chemometric analysis to differentiate ergot-infected grains using their infrared and reflection spectra, aiming to improve detection in wheat production.
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