Publications by authors named "D Tkachuk"

Objective: The aim: To highlight the original experience of diagnosis and treatment of patients with gunshot wounds of the extremities with extensive defects of the soft tissues.

Patients And Methods: Materials and methods: The total number of treated patients with massive gunshot wounds from February 2022 to March 2023 was 60 males. Basic labo¬ratory tests, X-rays of the affected limbs were performed to all patients.

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Purpose: We used a new web application for rapid review of radiation therapy (RT) target volumes to evaluate the relationship between target delineation compliance with the international guidelines and outcomes of definitive RT for nasopharyngeal carcinoma (NPC).

Methods And Materials: The data set consisted of computed tomography simulation scans, RT structures, and clinical data of 354 patients with pathology-confirmed NPC treated with intensity modulated RT between 2005 and 2017. Target volumes were peer-reviewed in RT quality assurance rounds, and target contours were revised, if recommended, before treatment.

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Chalcogenides are an important class of materials that exhibit tailorable optoelectronic properties accessible through chemical modification. For example, the minerals kesterite, stannite, and velikite (CuSnS, where = Zn, Cd, or Hg, respectively) are a series of Group 12 transition metal tin sulfides that readily exhibit optical bandgaps spanning the Shockley-Queisser limit; however, achieving consensus on their structure (space group 4̄ 4̄2) has been difficult. This study explores the average long-range and local structure of CuHgSnS and evaluates the parallels of = Zn and Cd sister compounds using complementary X-ray diffraction and solid-state nuclear magnetic resonance (NMR) spectroscopy.

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Article Synopsis
  • Immune checkpoint blockade (ICB) has revolutionized cancer treatment, providing long-lasting survival benefits for some patients, but many others do not respond effectively.
  • Recent studies have highlighted important molecular features influencing ICB efficacy, but these findings need further validation in larger patient groups.
  • A meta-analysis of genomic and transcriptomic data from over 3600 patients across 12 cancer types identified tumor mutational burden (TMB) and specific gene signatures as predictive markers for ICB response, with a newly developed gene signature (PredictIO) showing greater predictive capability.
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Metal halide perovskites remain top candidates for higher-performance photovoltaic devices, but concerns about leading lead-based materials remain. Ge perovskites remain understudied for use in solar cells compared to their Sn-based counterparts. In this work, we undertake a combined Ge and Cs solid-state Nuclear Magnetic Resonance (NMR) spectroscopy and density functional theory (DFT) study of the bulk CsGeX (X = Cl, Br, or I) series.

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