44 results match your criteria: "Lesya Ukrainka Volyn National University[Affiliation]"
Anal Methods
April 2023
School of Chemistry and Biochemistry, Thapar University, Patiala, Punjab 147004, India.
Characteristics, performance and applications of potentiometric membrane sensors are described for the determination of mefenamic and phenylanthranilic ions. Ion associates of mefenamic, ClO, and phenylanthranilic ions with crystal violet (counter-cation) as ion exchange sites have been used as ionophores in the plasticized one- and two-layer membrane ion-selective electrodes. The LOD is reported to be 8.
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February 2023
Department of Physical Education and Sport, University of Pitesti, Pitesti, Romania.
Background: The research was aimed at comparing the effect of using two types of training load different in intensity and energy supply. We studied the influence of the proposed load variations (machine and free weight exercises) on long-term adaptation of the body at the stage of specialized basic training in bodybuilding.
Methods: A total of 64 athletes aged 18-20 years were examined.
Chem Heterocycl Compd (N Y)
January 2023
Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Akademika Kukhara St, Kyiv, 02094 Ukraine.
The review summarizes and systematizes the literature data on the synthesis and some aspects of application of pyrrolo[1,2-]imidazoles. Synthetic approaches are grouped according to the degree of saturation of the product pyrroloimidazole ring. The bibliography of the review includes 110 sources over the last 15 years.
View Article and Find Full Text PDFRSC Adv
January 2023
Department of Experimental Physics and Information-Measuring Technology, Lesya Ukrainka Volyn National University 13 Voli Avenue 43025 Lutsk Ukraine.
The electronic and optical properties of an AgGaGeS crystal were studied by first-principles calculations, where the full-potential augmented plane-wave plus local orbital (APW+lo) method was used together with exchange-correlation pseudopotential described by PBE, PBE+, and TB-mBJ+ approaches. To verify the correctness of the present theoretical calculations, we have measured for the AgGaGeS crystal the XPS valence-band spectrum and the X-ray emission bands representing the energy distribution of the electronic states with the biggest contributions in the valence-band region and compared them on a general energy scale with the theoretical results. Such a comparison indicates that, the calculations within the TB-mBJ+ approach reproduce the electron-band structure peculiarities (density of states - DOS) of the AgGaGeS crystal which are in fairly good agreement with the experimental data based on measurements of XPS and appropriate X-ray emission spectra.
View Article and Find Full Text PDFMolecules
October 2022
Department of Chemical, Physical, Mathematical and Natural Sciences, University of Sassari, 07100 Sassari, Italy.
The current review provides an up-to-date analysis of scientific data on astaxanthin (ASX) sources and experimental studies on its health benefits as a potent antioxidant in the aging process. ASX is a liposoluble carotenoid nutrient and reddish-orange pigment, naturally synthesized by numerous microalgae, yeasts, and bacteria as secondary metabolites. Provides a reddish hue to redfish and shellfish flesh that feed on ASX-producing microorganisms.
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October 2022
Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37134 Verona, Italy.
Objective: The aim: To explore the peculiarities of subjective well-being (psychological well-being, physical health and well-being, relationships) and total well-being of the population during the 2022 war in Ukraine. To analyze the differences in subjective well-being of different population groups during the 2022 war in Ukraine according to the socio-demographic (gender, age, marital status) and socio-professional (social sphere of the work, position) characteristics and place of residence and security (territorial location and security level).
Patients And Methods: Materials and methods: Subjective well-being was studied using the modified BBC Subjective Well-being scale (BBC-SWB).
J Relig Health
February 2023
Lesya Ukrainka Volyn National University, Lutsk, Ukraine.
The war in Ukraine, in addition to significant human and financial losses, affected the mental health of Ukrainians. This study was carried out within the framework of the population psychological support program in the first month of the war. The objective of the research was to empirically study the interrelationship between media religiosity level and psychological coping given the effects of war.
View Article and Find Full Text PDFBioorg Chem
November 2022
Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland. Electronic address:
Development of cancer drug-resistance is still an ongoing problem in the modern anticancer treatment. Therefore, there is a need to search for a new active substance, which may become a potential anticancer agent. 4-Thiazolidinones are well-described substances with cytotoxicity against cancer cells in vitro.
View Article and Find Full Text PDFCurr Eye Res
July 2022
Regional Ophthalmological Center, Volyn Regional Clinical Hospital, Lutsk, Ukraine.
Purpose: To construct a realistic physical model of viscoelastic retinal stretching and, on its basis, derive a universal quantitative criterion of irreversible retinal deformations during age-related macular degeneration.
Methods: In this work, standard methods of nonlinear fracture mechanics of ductile and viscoelastic materials were applied to study the evolution of retinal deformation progress in patients with neovascular age-related macular degeneration in the area of large druses or subretinal or sub-retinal pigment epithelium fluid accumulation. A two-dimensional rhombic model of viscoelastic Kelvin-Feucht primitives was used to reconstruct the parameters included in the approximation of the creep strain growth rate.
Int J Psychol
October 2022
Paul Baerwald School of Social Work and Social Welfare, Hebrew University of Jerusalem, Jerusalem, Israel.
This study focused on the specific challenges of university students in the face of the COVID-19 pandemic and examined similarities and differences in COVID-related concerns and difficulties in functioning in samples of undergraduate students in five countries. A sample of 4306 undergraduate university students (43.8% males, 56.
View Article and Find Full Text PDFEur J Med Chem
August 2022
Danylo Halytsky Lviv National Medical University, Pekarska Str., 69, 79010, Lviv, Ukraine; University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225, Rzeszow, Poland. Electronic address:
A series of novel pyrrolidinedione-thiazolidinones was synthesized and subjected to physico-chemical characteristics. They were screened on a panel of cell lines representing different types of cancer, as well as normal human keratynocytes and lymphocytes of peripheral human blood. High antiproliferative activity of 1-(4-chlorophenyl)- and 1-(4-hydroxyphenyl)-3-{5-[(Z,2Z)-2-chloro-3-(4-nitrophenyl)-2-propenylidene]-4-oxo-2-thioxothiazolidin-3-yl}-1-(4-hydroxyphenyl)-pyrrolidine-2,5-diones 2a and 2b was revealed along with satisfactory cytotoxicity characteristics.
View Article and Find Full Text PDFBMJ Open
April 2022
Women's Brain Project, Guntershausen, Switzerland.
Objectives: To investigate public perspectives on brain health.
Design: Cross-sectional multilanguage online survey.
Setting: Lifebrain posted the survey on its website and social media and shared it with stakeholders.
Life (Basel)
February 2022
Institute of Chemistry and Biotechnology, Technical University of Ilmenau, 98693 Ilmenau, Germany.
Biomechanical and biochemical changes in the muscle soleus of rats during imitation of hind limbs unuse were studied in the model of the Achilles tendon rupture (Achillotenotomy). Oral administration of water-soluble C fullerene at a dose of 1 mg/kg was used as a therapeutic agent throughout the experiment. Changes in the force of contraction and the integrated power of the muscle, the time to reach the maximum force response, the mechanics of fatigue processes development, in particular, the transition from dentate to smooth tetanus, as well as the levels of pro- and antioxidant balance in the blood of rats on days 15, 30 and 45 after injury were described.
View Article and Find Full Text PDFPsychophysiology
April 2022
Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
Our behavior is shaped by multiple factors, including direct feedback (seeing the outcomes of our past actions) and social observation (in part, via a drive to conform to other peoples' behaviors). However, it remains unclear how these two processes are linked in the context of behavioral change. This is important to investigate, as behavioral change is associated with distinct neural correlates that reflect specific aspects of processing, such as information integration and rule updating.
View Article and Find Full Text PDFWiad Lek
December 2021
LESYA UKRAINKA VOLYN NATIONAL UNIVERSITY, LUTSK, UKRAINE.
Objective: The aim: To study and analyze the results of instrumental diagnostic measures and morphological verification of perforations of abdominal viscera in peritonitis in newborns, their importance in timely diagnosis, as well as to present authors' experience of examining newborns with PP, taking into account the complexity of diagnosis and treatment of these patients.
Patients And Methods: Materials and methods: The study is based on the results of examining 59 newborns with PP of various etiologies. Instrumental methods that were used in the diagnosis of PP and differential diagnosis of other emergencies involved the following: radiological examination (plain abdominal radiography), abdominal and retroperitoneal ultrasound, neurosonography, echocardiography, diagnostic abdominal paracentesis.
Int J Mol Sci
June 2021
Institute of Chemistry and Biotechnology, Technical University of Ilmenau, 98693 Ilmenau, Germany.
The biomechanical parameters of muscle soleus contraction in rats and their blood biochemical indicators after the intramuscular administration of water-soluble C fullerene at doses of 0.5, 1, and 2 mg/kg 1 h before the onset of muscle ischemia were investigated. In particular, changes in the contraction force of the ischemic muscle soleus, the integrated power of the muscle, the time to achieve the maximum force response, the dynamics of fatigue processes, and the parameters of the transition from dentate to smooth tetanus, levels of creatinine, creatine kinase, lactate and lactate dehydrogenase, and parameters of prooxidant-antioxidant balance (thiobarbituric acid reactive substances, hydrogen peroxide, and reduced glutathione and catalase) were analyzed.
View Article and Find Full Text PDFInt J Mol Sci
May 2021
Institute of Chemistry and Biotechnology, Technical University of Ilmenau, 98693 Ilmenau, Germany.
The widespread use of glyphosate as a herbicide in agriculture can lead to the presence of its residues and metabolites in food for human consumption and thus pose a threat to human health. It has been found that glyphosate reduces energy metabolism in the brain, its amount increases in white muscle fibers. At the same time, the effect of chronic use of glyphosate on the dynamic properties of skeletal muscles remains practically unexplored.
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February 2021
Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine.
The present paper is devoted to the search for drug-like molecules with anticancer properties using the thiazolo[3,2-][1,2,4]triazole-6-one scaffold. A series of 24 novel thiazolo-[3,2-][1,2,4]triazole-6-ones with 5-aryl(heteryl)idene- and 5-aminomethylidene-moieties has been synthesized employing three-component and three-stage synthetic protocols. A mixture of -isomers was obtained in solution for the synthesized 5-aminomethylidene-thiazolo[3,2-]-[1,2,4]triazole-6-ones.
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