Showing papers by "Kazimierz Wielki University in Bydgoszcz published in 2017"

The problems of students’ physical training individualization

Abstract: Purpose: to assess physical health and biological age of 1st 2nd year girl students, depending on their physical activity, as well as to work out system of control over students’ health. Material: in the research 1st and 2nd year girl students (n=120) participated. Results: students’ busy in their working day was analyzed as well as student’s understanding of healthy life style during working day. We also paid attention to reasons of sharp weakening of students’ physical fitness and determined integral indicator of healthy life style conception as well as significance of every its component. The following concepts are introduced: physical health, including individual level of physical condition; physical fitness and physical state. We found normal level for every component of physical health and correlation between population, regional and individual norms. Conclusions: For students’ healthy life style formation it is necessary to observe norm requirements to all its components. Violation of any component’s norm results in worsening general final result.

Cofilin - a protein controlling dynamics of actin filaments.

Abstract: Cofilins are evolutionary conserved proteins present in all Eukaryotic cells. Their primary function is dynamic reorganization of actin cytoskeleton. Two cofilin isoforms are known: cofilin 1, present in all studied non-muscle cells and in embryonic muscle cells, and cofilin 2, which dominates in mature skeletal and cardiac muscles. Polypeptide chains of both isoforms fold into a structure homological to a conservative ADF (actin depolymerizing factor) domain, which is characteristic of actin depolymerizing factor. In cofilin molecule two actin-binding sites were found. One site binds monomeric and filamentous actin, the second one interacts only with the filament. Binding of cofilin to actin filament causes a change in the orientation of subunits, which results in filament severing. This increases number of ends which can either elongate or shorten the filament, depending on the conditions. Cofilin interactions with monomeric actin decreases availability of polymerization-competent actin subunits. Cofilin activity is controlled by phosphorylation, binding membrane phospholipids, local pH and oxidative stress. Under conditions of oxidative stress oxidation of cysteine residues leads to formation of dimers, which are able to cross-link actin filaments. Stable actin-cofilin rods save cellular ATP, which is not used during active polymerization process. This facilitates faster cell recovery from the stress. The final cellular reaction on the environmental stimuli is a resultant of cofilin activity and activities of other actin-binding proteins, which function either synergistically or antagonistically. Due to the central role in the regulation of actin filaments dynamics, cofilin is involved in development of cancer, neurodegenerative diseases, congenital myopathies and cardiomyopathies.

A new approach to assess occupational exposure to airborne fungal contamination and mycotoxins of forklift drivers in waste sorting facilities.

Abstract: The waste management industry is an important employer, and exposure of waste-handling workers to microorganisms is considered an occupational health problem. Besides fungal contamination, it is important to consider the co-occurrence of mycotoxins in this setting. Forklifts with closed cabinet and air conditioner are commonly used in waste industry to transport waste and other products within the facilities, possibly increasing the risk of exposure under certain conditions. The aim of this study was to assess the fungal contamination and mycotoxin levels in filters from the air conditioning system of forklift cabinets, as an indicator to assess occupational exposure of the drivers working in a waste sorting facility. Cytotoxicity was also assessed to understand and characterize the toxicity of the complex mixtures as present in the forklift filters. Aqueous extracts of filters from 11 vehicles were streaked onto 2% malt extract agar (MEA) with chloramphenicol (0.05 g/L) media, and in dichloran glycerol (DG18) agar-based media for morphological identification of the mycobiota. Real-time quantitative PCR amplification of genes from Aspergillus sections Fumigati, Flavi, Circumdati, and Versicolores was also performed. Mycotoxins were analyzed using LC-MS/MS system. Cytotoxicity of filter extracts was analyzed by using a MTT cell culture test. Aspergillus species were found most frequently, namely Aspergillus sections Circumdati (MEA 48%; DG18 41%) and Nigri (MEA 32%; DG18 17.3%). By qPCR, only Aspergillus section Fumigati species were found, but positive results were obtained for all assessed filters. No mycotoxins were detected in aqueous filter extracts, but most extracts were highly cytotoxic (n = 6) or medium cytotoxic (n = 4). Although filter service life and cytotoxicity were not clearly correlated, the results suggest that observing air conditioner filter replacement frequency may be a critical aspect to avoid worker’s exposure. Further research is required to check if the environmental conditions as present in the filters could allow the production of mycotoxins and their dissemination in the cabinet during the normal use of the vehicles.

Technological process planning by the use of neural networks

Abstract: The central objective of the present author's research is to develop a system supporting the design of a technological process (a computer-aided process planning system) that functions similarly to a human expert in the field in question. The use of neural networks makes the creation of such a system possible. The proposed method uses a system of three blocks of neural networks, and involves the creation of neural networks to be used for the selection of machines, tools, and machining parameters. These networks are built for each process operation separately; that is, a set of neural networks is created for each selection. For the construction of models, different types of neural networks (multilayer networks with error backpropagation, radial basis function, and Kohonen) with different structures were employed, and the networks that made the best selections were identified. A method was also developed for the elimination of defects occurring during the production process. When a defect comes to light, this method suggests changes to the technological process, thus improving the quality of that process. Guidelines for the elimination of defects are produced in the form of decision rules. Such a computer-aided process planning system will be especially useful for process engineers who do not yet have sufficient experience in the design of technological processes, or who have only recently joined a particular manufacturing enterprise and are not fully familiar with its machines and other means of production (tools and instrumentation). It should be emphasized that such a system performs an advisory role, and it is always the process engineer who makes the final decision. The neural network models were tested on real data from an enterprise. A computer-aided process planning system based on rules and neural network models enables the intelligent design of technological processes.

Changes in pro-inflammatory markers and leucine concentrations in response to Nordic Walking training combined with vitamin D supplementation in elderly women.

Abstract: Mechanisms underpinning age-related decreases in muscle strength and muscle mass relate to chronic inflammation. Physical activity induces an anti-inflammatory effect, but it is modulated by additional factors. We hypothesized that vitamin D, which has also anti-inflammatory activity will modify adaptation to exercise and reduce inflammation in elderly women. Twenty-seven women aged 67 ± 8 years were included and divided into groups with baseline vitamin D concentration more than 20 ng mL−1 (MVD) and less than 20 ng mL−1 (LVD). Both groups performed 1 h Nordic Walking (NW) training combined with vitamin D supplementation for 12 weeks. Serum concentrations of inflammation markers, branched amino acids, vitamin D, muscle strength and balance were assessed at the baseline and three days after intervention. The training caused the significant decrease in concentration of pro-inflammatory proteins HMGB1 (30 ± 156%; 90% CI) and IL-6 (−10 ± 66%; 90% CI) in MVD group. This effects in group MVD were moderate, indicating vitamin D as one of the modifiers of these exercise-induced changes. Rise of myokine irisin induced by exercise correlated inversely with HMGB1 and the correlation was more pronounced at the baseline as well as after training among MVD participants. Although the intervention caused the leucine level to rise, a comparison of the recorded response between groups and the adjusted effect indicated that the effect was 20% lower in the LVD group. Overall the applied training program was effective in reducing HMGB1 concentration. This drop was accompanied by the rise of myokine irisin and better uptake of leucine among women with higher baseline vitamin D.

Noncontact Ultrasonic Nondestructive Techniques: State of the Art and Their Use in Civil Engineering

Abstract: Ultrasonic noncontact methods of testing civil engineering materials in air, where both transmission of waves into materials and reception of signals are contactless, are reviewed. A short history and technical details of noncontact methods related to generation, reception, and transmission of waves are presented. Particular attention is devoted to enhancement of the signal-to-noise ratio by using coded signals. Next, examples of currently available solutions dedicated to (1) estimation of bulk properties of materials, (2) evaluation of state of concrete cover, (3) flaw detection, and (4) identification of structural parameters of porous materials are discussed. Applications of laser techniques, classical echo, direct through transmission, and different types of semicontact methods are topics that are not reviewed in this paper. Finally, the benefits and limitations as well as expected directions of further development of the noncontact techniques are indicated.

Methodological approaches to pedagogical control of the functional and motor fitness of the girls from 7-9 grades

Abstract: The purpose of this study was to build a model for classification of motor and functional fitness in adolescent female students. To achieve this purpose, girls in 7 (n=31), 8 (n=26), and 9 grade (n=28) were recruited with appropriate parental consent. To build the classification model, each adolescent performed and number of motor tests and the Stange, Genchi, Serkin tests of functional state. Canonical discriminant function analyses were conducted to determine the motor and functional fitness contributions. Two significant functions (p<.001) resulted with the first function explaining 86.8% and the second 13.2% of the variance between grade levels. Based on the model, it was possible to classify girls’ grade and thus biological age based on the performed tests. Structural coefficients from the first canonical discriminant function pointed to substantial difference between girls in 7 grade compared to 8 and 9 grade at the end of motor coordination’s development as well as speed, power, and Stange’s test results. Structural coefficients of second canonical discriminant function pointed to substantial difference between girls in 8th and 9 grade based on static and relative arm muscle strength. For improving and fully developing the pedagogic control of girls’ motor and functional fitness, the first discriminant function should be used as it explained most of the grade differences.

A systemic literature review of neuroimaging studies in women with breast cancer treated with adjuvant chemotherapy.

Abstract: Chemotherapy-induced cognitive deficits in patients with breast cancer, predominantly in attention and verbal memory, have been observed in numerous studies. These neuropsychological findings are corroborated by the results of neuroimaging studies. The aim of this paper was to survey the reports on cerebral structural and functional alterations in women with breast cancer treated with chemotherapy (CTx). First, we discuss the host-related and disease-related mechanisms underlying cognitive impairment after CTx. We point out the direct and indirect neurotoxic effect of cytostatics, which may cause: a damage to neurons or glial cells, changes in neurotransmitter levels, deregulation of the immune system and/or cytokine release. Second, we focus on the results of neuroimaging studies on brain structure and function that revealed decreased: density of grey matter, integrity of white matter and volume of multiple brain regions, as well as their lower activation during cognitive task performance. Finally, we concentrate on compensatory mechanisms, which activate additional brain areas or neural connection to reach the premorbid cognitive efficiency.

Causal neuro-immune relationships at patients with chronic pyelonephritis and cholecystitis. Correlations between parameters EEG, HRV and white blood cell count

Abstract: We aim to analyze in bounds KJ Tracey's immunological homunculus conception the relationships between parameters of electroencephalogram (EEG) and heart rate variability (HRV), on the one hand, and the parameters of bhite blood cell count, on the other hand. METHODS In basal conditions in 23 men, patients with chronic pyelonephritis and cholecystitis in remission, recorded EEG ("NeuroCom Standard", KhAI Medica, Ukraine) and HRV ("Cardiolab+VSR", KhAI Medica, Ukraine). In portion of blood counted up white blood cell count. RESULTS Revealed that canonical correlation between constellation EEG and HRV parameters form with blood level of leukocytes 0.92 (p<10-5), with relative content in white blood cell count stubnuclear neutrophiles 0.93 (p<10-5), segmentonucleary neutrophiles 0.89 (p<10-3), eosinophiles 0.87 (p=0.003), lymphocytes 0.77 (p<10-3) and with monocytes 0.75 (p=0.003). CONCLUSION Parameters of white blood cell count significantly modulated by electrical activity some structures of central and autonomic nervous systems.

Analysis of acoustic emission signals at austempering of steels using neural networks

Abstract: Bearing steel 100CrMnSi6-4 and tool steel C105U were used to carry out this research with the steels being austempered to obtain a martensitic-bainitic structure. During the process quite a large number of acoustic emissions (AE) were observed. These signals were then analysed using neural networks resulting in the identification of three groups of events of: high, medium and low energy and in addition their spectral characteristics were plotted. The results were presented in the form of diagrams of AE incidence as a function of time. It was demonstrated that complex transformations of austenite into martensite and bainite occurred when austempering bearing steel at 160 °C and tool steel at 130 °C respectively. The selected temperatures of isothermal quenching of the tested steels were within the area near to MS temperature, which affected the complex course of phase transition. The high activity of AE is a typical occurrence for martensitic transformation and this is the transformation mechanism that induces the generation of AE signals of higher energy in the first stage of transition. In the second stage of transformation, the initially nucleated martensite accelerates the occurrence of the next bainitic transformation.

Mutual influence of uniaxial tensile strain and point defect pattern on electronic states in graphene

Abstract: The study deals with electronic properties of uniaxially stressed mono- and multi-layer graphene sheets with various kinds of imperfection: point defects modelled as resonant (neutral) adsorbed atoms or molecules, vacancies, charged impurities, and local distortions. The presence of randomly distributed defects in a strained graphene counteract the band-gap opening and even can suppress the gap occurs when they are absent. However, impurity ordering contributes to the band gap appearance and thereby re-opens the gap being suppressed by random dopants in graphene stretched along zigzag-edge direction. The band gap is found to be non-monotonic with strain in case of mutual action of defect ordering and zigzag deformation. Herewith, the minimal tensile strain required for the band-gap opening (≈12.5%) is smaller than that for defect-free graphene (≈23%), and band gap energy reaches the value predicted for maximal nondestructive strains in the pristine graphene. Effective manipulating the band gap in graphene requires balanced content of ordered dopants: their concentration should be sufficient for a significant sublattice asymmetry effect, but not so much that they may suppress the band gap or transform it into the “quasi- (or pseudo-) gap”.

Virulence markers associated with Trueperella pyogenes infections in livestock and companion animals.

Abstract: Trueperella pyogenes is an opportunistic pathogen that causes diverse pyogenic infections in livestock The genes that encode the exotoxin pyolysin (plo) and other putative factors that promote adhesion of pathogen to host cells (fimbriae fimA, fimC, fimE, fimG, neuraminidases nanH, nanP, and collagen-binding protein cbpA) have been associated with virulence, particularly in mastitis and uterus infections of dairy cows However, the role of these virulence markers in the pathogenicity of the agent in domestic animals infections still is incompletely understood The genes plo, fimA, fimC, fimE, fimG, nanH, nanP, and cbpA were investigated in 71 T pyogenes strains recovered from cattle, sheep, goats, dogs, equines, and a pig, recovered from mastitis (n = 35), and non-mastitis (n = 36) cases (abscesses, reproductive tract diseases, pneumonia, lymphadenitis, encephalitis) The most common genes harboured by the isolates were: plo (71/71 = 100·0%), fimA (70/71 = 98·6%), nanP (56/71 = 78·9%), fimE (53/71 = 74·6%), fimC (46/71 = 64·8%) and nanH (45/71 = 63·4%), whereas cbpA (6/71 = 8·4%) and fimG (4/71 = 5·6%) were uncommon The most frequent genotypes were plo/fimA/fimE/fimC/nanH/nanP (17/71 = 23·9%), plo/fimA/fimE/nanH/nanP (13/71 = 18·3%), and plo/fimA/fimE/fimC/nanP (11/71 = 15·5%) No association was observed between the presence of genes vs clinical signs or host species To the best of our knowledge, this is the first report on aforementioned virulence factors of pathogen detected in diseased horses and dogs Significance and impact of the study The role of particular virulence factors of Trueperella pyogenes that determine different pyogenic infections among domestic animals is poorly understood Eight putative virulence genes and genotype profiles of 71 isolates were investigated among different clinical manifestations in domestic animals The most common genes were plo (71/71 = 100·0%), fimA (70/71 = 98·6%), nanP (56/71 = 78·9%), fimE (53/71 = 74·6%), fimC (46/71 = 64·8%) and nanH (45/71 = 63·4%), whereas plo/fimA/fimE/fimC/nanH/nanP (17/71 = 23·9%), plo/fimA/fimE/nanH/nanP (13/71 = 18·3%), and plo/fimA/fimE/fimC/nanP (11/71 = 15·5%) were the most frequent genotypes Studies involving virulence factors are critical in the investigation of molecular epidemiology, pathogenicity, and hypothetical differences in the virulence among T pyogenes strains from different geographical areas

Fitness – aerobic training of 15 – 17 years´ age girl students, who have significant risk of deviations in backbone functional state

Abstract: Purpose: to work out complex of health related aerobic exercises with fit-ball for girl students, who have significant risk of backbone pathologies. Material: in the research 1st-3rd year girl students (n=50, age – 15-17 years) participated. Questionnaire for assessment of self feeling was used. For diagnostic of backbone mobility we used criterion of functional disorders and trainings effectiveness assessment. The diagnostic included eight tests for every girl student of risk group - Cervical spine mobility, Otta’s test, Chest excursion, Shober’s test, Tomayer’s test, Pavelky’s (left) test, Pavelky’s (right) test and Backbone index. The main research method was pedagogic experiment. Results: it was found that 50% of 1st year girl students have pain in back. Average level of backbone mobility (backbone index) in the tested group was 86.9% from approximate norm at the end of the research. Conclusions: we found that it is possible to prevent from deviations in backbone functional state and preservation of its functional level in fit-ball aerobic trainings. Fit-ball aerobic trainings resulted in confident improvement of indicators of backbone mobility.

Level of physical exercises’ mastering in structure of 11-13 yrs age boys’ motor fitness

Abstract: Purpose: to find the place of physical exercises’ mastering level in structure of 11-13 yrs age boys’ motor fitness.Material: in the research 11 yrs age boys (n=58), 12 (n=76) and 13 years age (n=93) participated. Testing program included well-known tests: “Forward roll”, “Backward roll”, “Vault”, ”Climbing rope (three attempts)”, “Bridge”, “Stance on shoulder blades”.Results: By indicators of physical condition 11-13 yrs age boys statistically confidently differ one from another (р<0,001). Level of mastering of gymnastic exercises “Backward roll”, “Vault”, ”Climbing rope (three attempts)”, “Bridge”, “Stance on shoulder blades” with age statistically confidently increases (р<0,001).Conclusions: In factorial structure of motor fitness, level of physical exercises’ mastering has weight 17,5% (11 yrs age), 36,6% (12 years), 28,5% (13 years). Analysis of communities showed that in 11-13 yrs age boys training of motor abilities is effective (if they become a component of mastered motor skills).

The determinants of coping with pain in chronically ill geriatric patients – the role of a sense of coherence

Abstract: Background Given the rising population of the elderly in modern societies, the concern for their good functioning poses a challenge for the 21st century medicine and social services. Senior citizens are at an increased risk of developing chronic conditions, which in turn increase discomfort associated with physiological processes of aging. Sensations of pain have a particular influence on the mentioned discomfort, and pain is prevalent among older people. Therefore, from the perspective of an elderly person and senior care, it is crucial to identify determinants of effective coping with chronic pain. Objectives The aim of the research was to assess the relationship between a sense of coherence (SOC) and pain-coping strategies in chronically ill seniors. A total number of 188 individuals were included in the study, of whom 117 were female subjects and 71 were male subjects, with a mean age of 68.38 (standard deviation [SD] =6.35) years in the studied group. Subjects were sampled based on a diagnosis of a chronic medical illness with chronic pain as one of the major symptoms. Methods The Polish adaptation of the Orientation to Life Questionnaire (SOC-29) to assess an SOC, the Coping Strategies Questionnaire (CSQ) to assess pain-coping strategies, and the visual analog scale (VAS) to assess pain intensity were used in the study. Results and conclusion The mean score of respondents' SOC was 133.44 (SD =24.35). Among most common pain-coping strategies used by the respondents were prayer and hope, and the declaration of coping with pain while redefining pain was the least often used coping strategy in the studied group. Individuals with stronger SOC were less prone to catastrophizing and more often declared that they were coping with and could control and reduce pain.

Occurrence of fungi and cytotoxicity of the species: Aspergillus ochraceus, Aspergillus niger and Aspergillus flavus isolated from the air of hospital wards.

Abstract: OBJECTIVES The basic care requirement for patients with weakened immune systems is to create the environment where the risk of mycosis is reduced to a minimum. MATERIAL AND METHODS Between 2007 and 2013 air samples were collected from various wards of a number of hospitals in Krakow, Poland, by means of the collision method using MAS-100 Iso MH Microbial Air Sampler (Merck Millipore, Germany). The air mycobiota contained several species of fungi, and almost 1/3 of it was made up of the species of the Aspergillus genus. Sixty-one strains of species other than A. fumigatus were selected for the research purposes, namely: 28 strains of A. ochraceus, 22 strains of A. niger and 11 strains of A. flavus species. Selected fungi underwent a cytotoxicity evaluation with the application of the MTT colorimetric assay (3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide). The assay assesses cell viability by means of reducing the yellow tetrazolium salt to insoluble formazan. A semi-quantitative scale for cytotoxicity grading was adopted: low cytotoxic effect (+) with half maximal inhibitory concentration (IC50) for values ranging from 31.251 cm2/ml to 7.813 cm2/ml, medium cytotoxic effect (++) for values ranging from 3.906 cm2/ml to 0.977 cm2/ml and the high one (+++) for values ranging from 0.488 cm2/ml to 0.061 cm2/ml. The absence of cytotoxicity was determined when the IC50 values was at ≥ 50. RESULTS For 48 samples the analyzed fungi displayed the cytotoxic effect with A. ochraceus in 26 out of 28 cases, with 11 strains displaying the high cytotoxic effect. The lowest cytotoxicity was displayed by fungi of A. niger in 13 out of 22 cases, and the major fungi of A. flavus species were toxic (9 out of 11 cases). CONCLUSIONS A half of the fungi displayed the low cytotoxic effect. On the basis of the comparison of average cytotoxicity levels it was determined that there were significant differences in the levels of cytotoxicity of the analyzed fungi. However, such statement may not provide grounds for a definite conclusion about the compared species of fungi that display a more cytotoxic effect than others. Int J Occup Med Environ Health 2017;30(2):231-239.

Manufacturing of Instructional Aids for Students at Low Cost by Means of 3D Printing

Abstract: This article focuses on 3D printing of compound elements, fully connected components or elements, which can be used as instructional aids for students. By means of traditional manufacturing technologies such as machining, forming, or molding, the manufacturing cost of such items would be high, and in addition they would be sometimes difficult to feasible. The majority of the low-cost 3D printers are operated on the basis of the fused deposition modeling technology.In addition, students can be involved in making their own teaching aids. The study of machine components and systems often requires the use of 3D gear models, especially planetary gears or centrifugal compressors. In the article, the numerical optimization of preparing and executing of 3D prints of models of the planetary gear and centrifugal compressor is proposed by the use of genetic algorithm.

Fungal air contamination in distinct sites within a municipal landfill area

Abstract: Municipal wastes collected in landfills are a significant source of air contamination and frequently characterize by elevated concentrations of different fungi. Posing a serious health threat to landfill workers and local residents, the fungal aerosol has to be monitored with respect to its quantity and quality. In this study, concentrations of airborne fungi, their particle size distribution, species composition and the presence of cytotoxic strains of Aspergillus fumigatus were assessed in different sites within the landfill area. The quantitative and qualitative changes in the fungal aerosol were determined with respect to a season and landfill activity level (i.e. exploitation or standstill periods). Within the landfill area, particular sites were grouped with regard to airborne fungi concentrations and similarities in species composition. The qualitative analysis indicated that 43 species were shared during both sampling times, and only nine species were characteristic for the standstill period. Among fungal isolates, 21 strains of A. fumigatus revealed cytotoxic activity expressed at different levels, depending on the fungal extract concentrations used in the MTT assay. The results suggested that exposure (especially in summer) to small airborne particles, containing distinct species, may occur not only in the active sector but also in close vicinity to the landfill. Hence, microbial monitoring of the landfill and surrounding area should be carried out taking into account both quantitative aspect supplemented by size distribution analysis and qualitative features, especially of those strains possessing cytotoxic activity.

Fusarium head blight incidence and detection of Fusarium toxins in wheat in relation to agronomic factors

Abstract: We investigated incidences of Fusarium head blight (FHB) and concentrations of six mycotoxins (deoxynivalenol, nivalenol, 3-acetyldeoxynivalenol, T-2 toxin, HT-2 toxin and zearalenone) in wheat from 2010 to 2013. Field trials were conducted at the Experimental Station of Cultivar Testing in Chrząstowo, Poland (53o11’N, 17o35’E). We examined the effects of four agronomic factors, including pre-crop type (corn, sugar beets and wheat), date of sowing (late autumn: November 8–December 9 or spring: March 29–April 19), fungicidal application (untreated or treated with two applications) and cultivar (Monsun, Cytra), on FHB index (FHBi) and mycotoxin levels in order to minimize the risk of wheat grain contamination by mycotoxins via integrated pest management methods. The dominant Fusarium species observed on wheat heads were F. culmorum, F. avenaceum (Gibberella avenacea) and F. graminearum (Gibberella zeae), at 21.1%, 17.2% and 7.1%, respectively. A monthly rainfall sum of 113.9 mm and a relatively low air temperature (monthly average 15.5 °C) resulted in the highest FHBi in untreated wheat (25.1%). Agronomic factors crucial for the FHB incidence were the pre-crop, fungicidal treatments and cultivar selection. In wheat planted after wheat or corn, the FHBi was higher compared with a pre-crop of sugar beet. A double application of fungicides at BBCH 30–32 with prothioconazole and spiroxamine and at a BBCH 65 with fluoxastrobin and prothioconazole effectively reduced the FHBi and mycotoxin concentrations, respectively, in grain. The cultivar ‘Cytra’ had a greater FHBi (10.4%) than ‘Monsun’ (4.6%), and grain infestations by Fusarium species were also greater in ‘Cytra’, at 16.5%, than in ‘Monsun’, at 11.2%. Untreated cv. Cytra grown after corn in spring produced grains with the highest amounts of the mycotoxins, deoxynivalenol, 3-acetyldeoxynivalenol, zearalenone and HT-2 (605, 103, 17.5 and 5.53 μg/kg, respectively). Total mycotoxin levels in wheat were correlated with five determinants: duration of the period between the end of flowering and the beginning of kernel abscission, FHBi, F. culmorum isolation, G. zeae isolation and Fusarium ratio (FR) as a % of total mould isolations. Although, the mean concentration of mycotoxins in grain did not exceed the maximum permissible values for unprocessed wheat our study suggests necessity to monitor and mitigate FHB risk for susceptible cultivars, when wheat spring sowing follows corn or wheat.

Algorithm of athletes’ fitness structure individual features’ determination with the help of multidimensional analysis (on example of basketball)

Abstract: Мета : представити основні закономірності визначення індивідуальних особливостей структури підготовленості атлетів за допомогою методів багатовимірного аналізу (на прикладі баскетболу). Матеріал : У дослідженні взяли участь кваліфіковані баскетболісти (n = 54). Педагогічне тестування проводилося за 12 тестами, що застосовуються в збірних командах України та Росії. При виконанні кожного тесту надавалися 3 спроби, фіксувався кращий результат. Тести проводилися протягом 2-3 тренувальних занять. Результати : розроблена загальна схема шляхів індивідуалізації процесу підготовки атлетів. Для кожного атлета визначалися групи провідних і відстаючих факторів в індивідуальній структурі підготовленості. Процес підготовки атлетів повинен містити базовий і варіативний компонент. Базовий компонент становить 70% засобів в загальній системі підготовки атлетів. Варіативний компонент становить 30% засобів: є застосування індивідуальних програм підготовки. Процентне співвідношення засобів в індивідуальних програмах підготовки варіює залежно від: провідного фактору в індивідуальній структурі підготовленості; періоду індивідуальної динаміки змагальної результативності. У кожному мікроциклі 30% часу відводиться на індивідуальну підготовку гравців: атлети отримують індивідуальні завдання; в міру необхідності формуються групи на основі даних кластерного аналізу. Висновки. При розробці індивідуальних програм підготовки акцент слід робити на розвиток провідних факторів в індивідуальній факторній структурі підготовленості атлетів. Застосування індивідуальних програм підготовки в поєднанні з універсальними методами індивідуалізації створює передумови для підвищення ефективності змагальної діяльності.

Natives and tourists of prosumer capitalism: On the varied pro-prosumer activities of producers exemplified in the Polish pop culture industry:

Abstract: This article pertains to the concept of prosumer capitalism, a term which refers to practices among companies of using consumers’ unpaid work (prosumption refers to the mixing of consumption and pr...