Recurrent Neural Networks in Computer-Based Clinical Decision Support for Laryngopathies: An Experimental Study

The main goal of this paper is to give the basis for creating a computer-based clinical decision support (CDS) system for laryngopathies. One of approaches which can be used in the proposed CDS is based on the speech signal analysis using recurrent neural networks (RNNs). RNNs can be used for pattern recognition in time series data due to their ability of memorizing some information from the past. The Elman networks (ENs) are a classical representative of RNNs. To improve learning ability of ENs, we may modify and combine them with another kind of RNNs, namely, with the Jordan networks. The modified Elman-Jordan networks (EJNs) manifest a faster and more exact achievement of the target pattern. Validation experiments were carried out on speech signals of patients from the control group and with two kinds of laryngopathies

How do new therapeutic strategies for PCOS management influence the health of the affected individuals? The narrative review

Introduction and purpose: Management of polycystic ovary syndrome (PCOS) is difficult since the exact pathogenic mechanism has not been established yet. Due to that fact, the substances registered to treat PCOS are still lacking efficacy and are associated with a number of adverse effects. The aim of this study is to review new possible treatment approaches.   State of knowledge: Inositol administered alone or combined with oral contraceptive drugs improves patients’ hormonal status and alleviates the weight increase in comparison to oral contraceptive drugs on their own. Berberine reduces insulin resistance, improves lipid metabolism, and reduces inflammatory reactions. Glucagon-like peptide-1 receptor agonists have a better weight loss effect and less severe adverse reactions than metformin. Thiazolidinediones combined with metformin improve ovulation rate, acne and increase SHGB levels. Thiazolidinediones have also less severe adverse reactions than metformin and can be useful in patients who are not able to tolerate metformin.   Summary: The review has shown that inositol, berberine, glucagon-like peptide-1 receptor agonists andthiazolidinediones have promising therapeutic effects in terms of PCOS treatment, however, more research is needed to establish safety and efficacy of those agents. Nonetheless, results of this study may be utilized in the education of health specialists in endocrinology departments

Mol-CycleGAN: a generative model for molecular optimization

Designing a molecule with desired properties is one of the biggest challenges in drug development, as it requires optimization of chemical compound structures with respect to many complex properties. To improve the compound design process, we introduce Mol-CycleGAN—a CycleGAN-based model that generates optimized compounds with high structural similarity to the original ones. Namely, given a molecule our model generates a structurally similar one with an optimized value of the considered property. We evaluate the performance of the model on selected optimization objectives related to structural properties (presence of halogen groups, number of aromatic rings) and to a physicochemical property (penalized logP). In the task of optimization of penalized logP of drug-like molecules our model significantly outperforms previous results

Development of labor market regulations in the Czech Republic for workers from countries outside the EU / EEA and Switzerland

This diploma thesis deals with the regulations of the Czech labour market. The aim of this thesis is to describe and assess the development of Czech labour market regulations for workers outside the EU/EEA countries and Switzerland. It also compares the current state of the studied issue with the state and approach of Poland, with the intention of identifying common features and differences in the area in order to propose public policy measures on labour market regulations for workers outside the EU/EEA countries and Switzerland in the Czech Republic. The introduction deals with the influences that affect the labour market. The next part describes the development of labour market regulations in the Czech Republic and Poland in 2012-2020 and how both countries approach the implementation of individual measures. A case study was chosen as the main type of research design. The research focuses on an analysis of primary data obtained during semi-structured interviews with employees of individual ministries and a construction company owner, as well as an analysis of secondary data obtained from public policy documents, strategic and conceptual documents, legal standards, statistics and other relevant documents. Based on the performed analyses, the conclusion of the thesis provides proposals of potential..

Investigations Concerning the Influence of Sleep Disorders on Postural Stability in Young Men

Lack of sleep is a factor that disrupts the receptors’ reception of information from the environment and contributes to the emergence of problems with maintaining balance. The main aim of the study was to determine whether sleep disorders affect postural stability in young men. The study participants were 76 male students who were divided into groups with good and poor sleep quality. The division was made based on the results obtained from the questionnaire of the Pittsburgh Sleep Quality Index (PSQI). In each group, postural stability had been tested using three main tests: Sensory Organization Test (SOT); Motor Control Test (MCT); and Adaptation Test (ADT). The results of the analysis show that the obtained results differ in the examined groups under the SOT test. Different values of the tested parameters were noted among people with poor sleep quality and compared with the values of those who sleep well, which translates into a difference in the ability to maintain balance. The greatest impact is observed when using visual and a vestibular system to maintain a stable posture. It was confirmed that the lack of sleep significantly disturbs postural stability

Studies of Oat-Maize Hybrids Tolerance to Soil Drought Stress

The ontogenesis and yield formation in crop plants are modified by environmental conditions. Due to climatic change detected over two decades, the harmful influence of abiotic factors is increasing. One of the most threatening issues reducing plant productivity is drought stress. The strength of plant response to water shortages could differ depending on the strength of the drought stress, type of crop, genetic background, presence of additional stresses, and stage of plant development. There are examples of sexual hybridization between crop plants like oat (Avena sativa L.) and maize (Zea mays L.) with which stable fertile hybrids were generated. Additional maize chromosomes in oat plants (oat × maize addition, OMA) often infer morphological and physiological (e.g., PS II photosystem activity and chlorophyll production) changes modulated by the interaction of certain maize chromosomes added to the oat genome. The aim of the research was to evaluate the chosen physiological, biochemical, and agronomic parameters of OMA plants subjected to soil drought. Analysis of variance indicated that the main effects of genotype as well as treatment × genotype interaction were significant for all the traits studied (photosynthetic pigment content, selected PSII indices, mass of stem, number of grains/plant, mass of grains/plant). Most of the examined lines severely reduced PSII photosystem parameters, pigment content, and yield-related traits under drought stress. The results indicated that two lines (9 and 78b) retained high yielding potential under drought stress compared to commercial cv. Bingo

Effect of Soil Drought Stress on Selected Biochemical Parameters and Yield of Oat × Maize Addition (OMA) Lines

Plant growth and the process of yield formation in crops are moderated by surrounding conditions, as well as the interaction of the genetic background of plants and the environment. In the last two decades, significant climatic changes have been observed, generating unfavorable and harmful impacts on plant development. Drought stress can be considered one of the most dangerous environmental factors affecting the life cycle of plants, reducing biomass production and, finally, the yield. Plants can respond to water deficit in a wide range, which depends on the species, genetic variability within the species, the plant’s ontogenesis stage, the intensity of the stress, and other potential stress factors. In plants, it is possible to observe hybrids between different taxa that certain traits adopted to tolerate stress conditions better than the parent plants. Oat × maize addition (OMA) plants are good examples of hybrids generated via wide crossing. They can exhibit morphological, physiological, and biochemical variations implemented by the occurrence of extra chromosomes of maize, as well as the interaction of maize and oat chromatin. The initial goal of the study was to identify OMA lines among plants produced by wide crossing with maize. The main goal was to investigate differences in OMA lines according to the Excised Leaf Water Loss (ELWL) test and to identify specific biochemical changes and agronomic traits under optimal water conditions and soil drought. Additionally, detection of any potential alterations that are stable in F2 and F3 generations. The aforementioned outcomes were the basis for the selection of OMA lines that tolerate growth in an environment with limited water availability. The molecular analysis indicated 12.5% OMA lines among all tested descendants of wide oat-maize crossing. The OMA lines significantly differ according to ELWL test results, which implies some anatomical and physiological adaptation to water loss from tissues. On the first day of drought, plants possessed 34% more soluble sugars compared to control plants. On the fourteen day of drought, the amount of soluble sugars was reduced by 41.2%. A significant increase of phenolic compounds was observed in the fourteen day of drought, an average of 6%, even up to 57% in line 9. Soil drought substantially reduced stem biomass, grains number, and mass per plant. Lower water loss revealed by results of the ELWL test correlated with the high yield of OMA lines. Phenolic compound content might be used as a biochemical indicator of plant drought tolerance since there was a significant correlation with the high yield of plants subjected to soil drought