Publications by authors named "V S Ivankova"

Radiotherapy (RT) and radiation oncology are of essential role in the clinical treatment of cancer patients. The widely available imaging modalities such as diagnostic ultrasound, computer-assisted tomography, and contrast-enhanced MRI are used in clinical practice for diagnostics and management planning. Moreover, these methods are also used to monitor the treatment upon RT.

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Objective: to determine the presence of changes in peripheral blood parameters, characterizing its redox state, and the level of apoptosis of lymphocyte in radiologists/x-ray technologies who, due to their official duties, are exposed to small doses of ionizing radiation.

Object And Methods: The work was performed on blood samples of 45 professionals radiologists/x-ray technologies and 52 conventionally healthy individuals (control group). The content of malondialdehyde and sulfhydryl groups of proteins and peptides (-SH) in blood plasma was determined; catalase enzyme activity and the ratio of pro-antioxidant processes in hemolysates, the level of superoxide anion-radical (О2-) generation, the total production offree radical compounds (reactive forms of oxygen and nitrogen) and the level of apoptosis of peripheral blood lymphocytes (PBL).

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This study aimed to assess the relationship between safety perceptions and destination image in the Central European region during the technological and social environment change brought about by the COVID-19 pandemic. The study sample consisted of respondents from three Central European countries, namely, the Czech Republic, Hungary, and Slovakia. The quantile regression analysis was used to analyze the relationship between the image of the destination and its perceived safety.

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Article Synopsis
  • The study investigates the link between health spending, treatable respiratory mortality, and GDP in OECD countries, emphasizing the distinction between tax-based and insurance-based health systems alongside gender differences in the working-age population.
  • Findings indicate that higher health spending correlates with lower treatable respiratory mortality, particularly in tax-based health systems, with men generally experiencing higher mortality rates compared to women.
  • The research highlights that countries with tax-based systems generally have better health outcomes and GDP levels, with specific nations like Italy and Switzerland showcasing particularly positive results compared to others with less favorable outcomes.
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Background: Rapid development of radiotherapeutic techniques and implementation of radiation therapy (RT) nanotechnologies in practice, taking into account principles of radiobiology, ensures that the planned dose will bedelivered to the target volume with minimal irradiation of healthy tissues while maintaining the guaranteed RTquality. Therefore, further advance of RT involves not only implementation of the new technologies in radiationpractice, but also the intensive developments in fields of radiation medicine and clinical radiobiology.

Objective: search for optimal models of the high-energy (HDR - high dose rate) brachytherapy (BT) using the 192Irsource in comparison with effects of the reference gamma radiation from 60Co, thereby, to increase the effectivenessof chemoradiation therapy (CRT) of gynecological cancer patients (GCPs) with minimal radiation loads on criticalorgans and tissues in the tumor environment.

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