bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE IMPORTANCE OF PEDAGOGIC PROVISIONS OF “NAKHASHAVIGH” TEXTBOOK BY KH. ABOVYAN IN MODERN CONDITIONS OF TEACHING
Authors: KHALATYAN GAYANE 
Published: August 2022

The article discusses the role of Kh. Abovyan’s “Nakhashavigh” textbook in Armenian school and pedagogy. Abovyan rejected the textbooks in Grabar and created manuals based on humanistic ideas. The educator worked out a new methodology: didactic, psychological and pedagogic system. According to Abovyan, the primary provision of pedagogy is lesson goal, choice of appropriate method, principles of teaching, content of lesson. The suggested provisions are among the priorities of modern educational system. The comments dedicated to didactic principles are highly appreciated in Abovyan’s legacy and they haven’t lost their theoretical and practical value.
In “Nakhashavigh” textbook the author paid much attention to the visibility as a didactic principle. According to the author, what is seen, felt gives content to the words and notions learnt. Abovyan connects teaching the native language with developing in students the principle of consciousness and the ability of thinking on their own. He used the principle of consciousness in didactics. According to Abovyan, teaching native language is connected both with logics and activation of psychological processes.
Our goal is to apply Kh. Abovyan's leading pedagogical didactic principles in the modern education system which will contribute easy perception of academic material and use of modes by teacher.
FRANÇOIS DELSARTE’S DOCTRINE AS THE BASIS FOR THE CREATION OF MODERN DANCE
Authors: PIPOYAN RIMA 
Published: August 2022

The article discusses the study of the teachings of François Delsarte, in which an attempt is made to understand the stages of the origin and development of modern dance in different countries. This teaching spread to two countries: the USA, Germany, then it penetrated into Russia and became the basis for the creation of rhythmic and plastic dance studies. All the ideas embodied in the study of the François Delsarte system served as a good basis for the development of a new dance direction at the end of the 19th century. Today, this new dance direction is known to all of us as modern dance. Each country, having its own customs, worldviews and history, interpreted it in different ways: in the USA it was called modern dance, in Germany - expressive dance, and in Russia - rhythmoplastic dance. These phrases had different purposes: several generations of modern dancers in the USA used their ideas and developed the terminology of modern dance in English. Germany had its own interpretation, but since it was not a widely used international language, the terms did not come into use. Today, in Germany and elsewhere in Europe, these terms are also used in English.
Adaptive morphofunctional rearrangements in the adult rats adenohypophysis after long-term exposure of heavy metal salts
Authors: Nataliia Hryntsova , Ingrid Hodorova , Anatoly Romanyuk , Alexander Kravets , Silvia Rybarova , Kvetuse Lovasova , Josef Mihalik , Andriana Pavliuk-Karachevtseva , Janka Vecanova , Dalibor Kolesar , Andriana Bolekova , Slavka Flesarova 
Published: August 2022

Abstract
Important environmental problem of some northern regions of Ukraine is the accumulation of heavy metal salts in the soil, water and air, which is observed in various combinations depending on the region and causes adverse effects on population’s health. The central link, in particular the pituitary gland, is involved in triggering a stress response, limiting its further development preventing adverse effects on the body. The study of morphofunctional rearrangements in the pituitary gland of adult male rats under the influence of heavy metal salts complex on the body remains a relevant aspect of modern morphology. The experiment was performed on 12 white mature male rats weighing 200-250g at the age of 7-8 months, which were divided into 2 groups (control and experimental). The experimental group included rats, which after 90 days of use of a heavy metals salts complex (zinc, copper, iron, manganese, lead and chromium) for 30 days used ordinary drinking water. General morphological (histological, morphometric), mmunohistochemical, biochemical and statistical research methods were used. Results showed a decrease in the linear parameters of the adenohypophysis, there was a significant increase in the value of fibrous connective tissue component in the stroma, increased collagenization of large vessels, significant diffuse stromal edema and edematous processes in the gland parenchyma persisted. Measurements revealed an increase in the number of chromophobes and at the same time a decrease in the number of chromophilic basophils compared to control animals, the presence of cysts in the parenchyma was found out. number of morphological features still indicated the development of adaptive and compensatory processes in the adenohypophysis (vascular plethora decreased, significantly improved the rheological properties of blood, an increase in the number of adenocytes with increasing expression of hsp90 in their cytoplasm). However, despite the positive dynamics of adaptive processes, it should be noted that the 30-day period of adaptation is insufficient for complete recovery of the organ.
DFT studies of camptothecins cytotoxicity III: camptothecin, irinotecan and SN-38
Authors: Štekláč Marek , Breza Martin 
Published: August 2022

AbstractGeometries of camptothecin, irinotecan, SN-38, and of their hypothetical Cu(II) complexes were optimized at the B3LYP/6-311G* level of theory. Their electron structure, evaluated in terms of Mulliken population analysis and Quantum Theory of Atoms-in-Molecule, was subsequently related toin vitrocytotoxicity. Electron density transfer from the relevant active sites to Cu decreases in the sequence irinotecan > SN-38 > camptothecin. The absolute values of their metal-ligand interaction energies exhibit the same trend. Discrepancy with the least relativein vitrocytotoxicity of irinotecan can be explained by differences in its pharmacokinetics.
Incorporating Feature Selection Methods into Machine Learning-Based Covid-19 Diagnosis
Authors: Danacı Çağla , Tuncer Seda Arslan 
Published: August 2022

Abstract
The aim of the study is to diagnose Covid-19 by machine learning algorithms using biochemical parameters. In addition to the aim of the study, October selection was performed using 14 different feature selection methods based on the biochemical parameters available to us. As a result of the study, the performance of the algorithms and feature selection methods was evaluated using performance evaluation criteria. The dataset used in the study consists of 100 covid-negative and 121 covid-positive data from a total of 221 patients. The dataset includes 16 biochemical parameters used for the diagnosis of Covid-19. Feature selection methods were used to reduce the number of parameters and perform the classification process. The result of the study shows that the new feature set obtained using feature selection algorithms yields very similar results to the set containing all features. Overall, 5 features obtained from 16 features by feature selection methods yielded the best performance for the K-Nearest Neighbour algorithm with the FSVFS feature selection method of 86.4 %.
Impact of maternal feed rationing during pregnancy on meat quality attributes of rabbit offspring
Authors: Adeyemo Adedayo Akinade , Odutayo Olusola Joshua , Adeyemo Adeola Justina , Adeyemi Olajide Ayorinde , Sogunle Olajide Mark , Bamgbose Adeyemi Mustapha 
Published: August 2022

Abstract
Young rabbits does fed ad libitum diets often show parturition problems such as dystocia and abnormal presentation, resulting in reduced numbers of kits. This can be linked to excessive fatness of the does. Several studies have documented the effect of feed restriction on rabbits, but only limited information exist on the carryover effect of maternal feed restriction exerts on meat quality attributes of the offspring produced from such restriction. This study evaluated the influence of maternal feed restriction and vitamin E inclusion during pregnancy on meat quality of rabbit kits. Seventy-five rabbits, consisting of sixty 20-week-old does and 15 mature bucks, were used in the experiment. Treatments consisted of two levels of feed restriction (0 and 15 %) applied at three different periods during pregnancy (15 – 19, 20 – 24, or 25 – 29 days) with or without vitamin E dietary inclusions (0 and 300 mg/kg). The pregnant does were divided into twelve treatment groups, each containing five replicates of one rabbit each. The experiment was in a 2 × 3 × 2 factorial layout in a completely randomised design. After kindling (between days 28 – 31 of pregnancy) the resulting kits (a total of 180 kits) were arranged on treatment basis of their mothers and managed for a period of 56 days; that is 15 kits per treatment, each replicated 5 times (each replicate contained 3 kits). After 56 days of experiment, the data were collected on meat pH, total cholesterol, crude fat, crude protein, thermal shortening and refrigeration loss. Feed restriction during pregnancy with or without dietary vitamin E (no addition and 300 mg/kg) resulted in a significant (p < 0.05) influence on meat quality attributes of growing rabbits as total cholesterol (555.00 ± 6.06) decreased in the meat of rabbits whose mothers were feed-restricted during pregnancy. On the other hand, maternal feed rationing with or without vitamin E did not significantly (p > 0.05) affect the crude protein and thermal shortening of their slaughtered offspring. In conclusion, maternal feed rationing during pregnancy can be adopted as a feeding strategy in manipulating meat quality indicators of growing rabbits as total cholesterol concentrations decreased which is a good indicator that the meat is safer and better for consumers in order to prevent health-related challenges.
Crystal violet removal from aqueous solutions using dry bean pods husks powder – optimization and desorption studies
Authors: Mosoarca Giannin , Vancea Cosmin , Popa Simona , Boran Sorina , Radulescu-Grad Maria Elena 
Published: August 2022

Abstract
In this study the Taguchi method was used to establish the optimal conditions for the adsorption of crystal violet dye on an adsorbent obtained from dry bean pods husk. Six factors, at three level, were considered in establishing the L27 Taguchi orthogonal array. The ANOVA analysis was performed to calculate the each factor percentage contribution on the dye removal efficiency. A desorption study was carried out to evaluate the regeneration possibility of the used adsorbent. The removal efficiency ranged from 5.91 to 94.48 % depending on the controllable factors combination set by Taguchi design. The results showed that the factor with the highest percentage contribution on the dye removal efficiency was the ionic strength (48.85 %). The correlation between the predicted values of the dye removal efficiency with those obtained experimentally indicate a good accuracy of Taguchi approach.
The impact of the COVID-19 pandemic on swimmers in Poland
Authors: Ogonowska-Slodownik Anna , Kawa Kamil , Morgulec-Adamowicz Natalia 
Published: August 2022

Abstract

Study aim: To assess the impact of the COVID-19 pandemic on health, lifestyle, training loads and competition starts of swimmers in Poland in 2020.

Material and methods: The study was conducted in the form of a questionnaire on group of 123 Polish swimmers in 2020. The survey asked about differences in training, lifestyle and well-being following the introduction of pandemic restrictions. The mean age of the athletes was 23 years ± 7.6 and training experience 10 years ± 5.3.

Results: The majority of swimmers (81%) were satisfied with their health status. Respondents did not experience changes in sleep quality and length during the COVID-19 pandemic. A large proportion of respondents (83%) did not follow a special diet, while they were willing to use supplementation (58.5%). Respondents stated that the pandemic did not affect their physical activity outside of training. The athletes evaluated negatively the changes in training and competition conditions caused by the pandemic (p < 0.0001).

Conclusions: The study showed that the COVID-19 pandemic did not have a major impact on the health, sleep and physical activity of swimmers in Poland in 2020, while it had a negative impact in terms of training conditions and sport competition.
New approach to estimating macroeconomic determinants of informal employment
Authors: Vidović Nikola , Ritan Vladana 
Published: August 2022

Abstract
Informal employment is a less favourable type of employment whose levels policy makers usually want to decrease and move these workers in the formal part of the labour market. It is more commonly found in LDCs and in developing economies, than in developed ones. This paper uses a cross-section multiple regression analysis to check the effects of multiple macroeconomic variables on the size of the informal labour market. The sample is made out of economies for which ILO has published data about the share of employment outside the formal sector, excluding the economies that receive aid from IDA, using 2017, 2018 and 2019 data from the International Labour Organization and other international organizations. Results show that macroeconomic variables do not have significant explanatory power, except for unemployment rate, exports and GDP growth rate.
Biomass allocation and carbon stock in Douglas fir and Norway spruce at the tree and stand level
Authors: Čihák Tomáš , Vejpustková Monika 
Published: August 2022

Abstract
The effect of changing tree species composition in favor of a greater representation of Douglas fir at the expense of Norway spruce on the carbon pool of Central European forests has not yet been investigated. Here, we compare the allocation of aboveground biomass and carbon stock in Douglas fir and spruce at the tree and stand level. At the tree level, Douglas fir accumulated, on average, 16.9% more aboveground biomass than Norway spruce. A greater amount of biomass was allocated mainly in the wood and bark of Douglas fir stem. For these biomass compartments, the difference between Douglas fir and Norway spruce was 21.1% and 60.3%, respectively. Spruce allocated more biomass in the crown, where the difference was 25.6% compared to Douglas fir. In needle biomass, Norway spruce exceeded Douglas fir by 84%. At the stand level, the analysis of model stands revealed that pure Norway spruce stands accumulated more carbon in the high and medium quality sites. As the site quality decreased, so did the differences in the amount of stored carbon. The higher carbon sink in Norway spruce stands was also confirmed in the analysis of real Norway spruce and Douglas fir stands. The difference in the carbon stock of young, medium-aged, and mature stands was 11.5%, 14.8%, and 1%, respectively. The positive balance in favor of spruce is mainly due to significantly higher numbers of trees per ha in Norway spruce stands. A positive effect of a greater representation of Douglas fir on the carbon budget of forest stands was not confirmed.
Biomass distribution, allocation and growth efficiency in European beech trees of different ages in pure even-aged stands in northeast France
Authors: Le Goff Noël , Ottorini Jean-Marc 
Published: August 2022

Abstract
Determination of the biomass and biomass increment of trees in managed stands is a pre-requisite for estimating the carbon stocks and fluxes, in order to adapt the forests to new climatic requirements, which impose to maximize the CO2 retained by forests. Tree biomass and biomass increment equations were formerly developed in two young experimental beech stands in the Hesse forest (NE France). To extend such a study to beech stands of different age classes, it was necessary to build biomass and biomass increment equations that could be used for any age, called generalized biomass equations. For that, trees were sampled in plots covering a large age range in Hesse forest, and in each plot several trees were chosen to represent the different social classes. Compatible biomass and biomass increment equations for the different tree compartments and their combination in above and belowground tree parts were developed and fitted, allowing the analysis of the variations of the biomass distribution and allocation with tree age. Stem growth efficiency (stem growth per unit of leaf area) appeared dependent on tree age and tree social status. The biomass and biomass increment equations established for beech allow the estimation of the biomass and carbon stocks and fluxes (NPP) for the even-aged beech stands of the Hesse forest, whatever their age. These equations could also be used to analyze the effects of silvicultural treatments on the biomass and carbon stocks and fluxes of beech stands, using the available stand growth and yield models of beech.
The effects of satellite soil moisture data on the parametrization of topsoil and root zone soil moisture in a conceptual hydrological model
Authors: Kuban Martin , Parajka Juraj , Tong Rui , Greimeister-Pfeil Isabella , Vreugdenhil Mariette , Szolgay Jan , Kohnova Silvia , Hlavcova Kamila , Sleziak Patrik , Brziak Adam 
Published: August 2022

Abstract
In a previous study, the topsoil and root zone ASCAT satellite soil moisture data were implemented into three multi-objective calibration approaches of the TUW hydrological model in 209 Austrian catchments. This paper examines the model parametrization in those catchments, which in the validation of the dual-layer conceptual semi-distributed model showed improvement in the runoff simulation efficiency compared to the single objective runoff calibration. The runoff simulation efficiency of the three multi-objective approaches was separately considered. Inferences about the specific location and the physiographic properties of the catchments where the inclusion of ASCAT data proved beneficial were made. Improvements were primarily observed in the watersheds with lower slopes (median of the catchment slope less than 15 per cent) and a higher proportion of farming land use (median of the proportion of agricultural land above 20 per cent), as well as in catchments where the runoff is not significantly influenced by snowmelt and glacier runoff. Changes in the mean and variability of the field capacity parameter FC of the soil moisture regime were analysed. The values of FC decreased by 20 per cent on average. Consequently, the catchments’ water balance closure generally improved by the increase in catchment evapotranspiration during the validation period. Improvements in model efficiency could be attributed to better runoff simulation in the spring and autumn month. The findings refine recommendations regarding when hydrological modelling could consider satellite soil moisture data added to runoff signatures in calibration useful.
The impact of treated wastewater and biosolids from the municipal wastewater treatment plant on water and carbon dioxide effluxes from soils
Authors: Fér Miroslav , Kodešová Radka , Klement Aleš , Nikodem Antonín 
Published: August 2022

Abstract
The goal of this study was to evaluate the effect of products from a municipal wastewater treatment plant on the H2O and CO2 effluxes from two soils. The net H2O and CO2 effluxes were measured at the surface of nine beds with two different soils (Cambisol and Arenosol) and two crops (maize or vegetables). Soils in some beds were amended with stabilized sewage sludge (bed with Cambisol and maize) or composted sewage sludge (two beds with Cambisol and both crops) or were irrigated with treated wastewater (two beds with Cambisol and both crops, and one bed with Arenosol and vegetable). Remaining beds were irrigated with tap water (two beds with Cambisol and both crops, and one bed with Arenosol and vegetable). While stabilized and composted sewage sludge positively affected the CO2 emission, the effect of treated wastewater was not confirmed. Different treatments had negligible effect on the water efflux, which was mainly affected by the plant canopy that influence the temperature of the soil surface. Statistical analyses showed that trends of the CO2 efflux with respect to various scenarios measured on different days changed during the season. No significant correlations were found between the average H2O and CO2 effluxes and measured soil properties.
Influence of Iron-Based Powder Additive on a Shape Accuracy of Injection Moulded Parts
Authors: Dobrovszký Patrik , Bílik Jozef , Milde Ján , Kritikos Michaela , Ďuriška Libor 
Published: August 2022

Abstract
This paper reviews the effects of iron-based powder on shape accuracy of injection moulded parts. Analysed specimens were produced on a micro injection moulding machine. At first, specimens of pure polypropylene (PP) were manufactured. Then specimens containing 1, 2 and 3 vol. % of iron powder additive were produced using the same process parameters. Subsequently, the samples were scanned using scanned using Zeiss METROTOM CT scanner. Results were analysed via CAE inspection tools. The main aim was to compare the shape and flatness of the scanned specimens to the nominal models. Results showed that iron-based additives of this vol.% had no significant effect on shape accuracy of produced parts. This paper is a partial result of the ongoing research focused on effect of iron and steel-based additives on material, magnetic and mechanical properties of polymers.
Influence of Liquid Medium on Laser Ablation of Titanium
Authors: Bočáková Barbora , Necpal Martin , Sahul Martin 
Published: August 2022

Abstract
Titanium grade 2 plates were modified by a pulsed nanosecond laser beam. The aim was to determine the surface properties after the machining process in two different liquid media. The samples were processed in distilled water and paraffin oil. It was found that a surface with half-surface roughness values with a number of cracks was formed in distilled water. The presence of water reduced the size of the heat-affected zone.
Experimental Studies and Theoretical Modelling of Diesel Engine Running on Biodiesels from South African Sunflower and Canola Oils
Authors: Enweremadu Christopher , Samuel Olusegun , Rutto Hilary 
Published: August 2022

Abstract
The attributes of cost-effectiveness, reliability, consistency and better understanding, have made researchers prefer studying engine characteristics of IC engines fuelled with alternative fuels/diesel blends with computer simulation compared to conventional experimental study. For the first time, the study attempted to simulate combustion, performance, and emission characteristics of biodiesels from Canola and Sunflower oil domiciled in South Africa. The properties of biodiesel vary from one region to another depending on the local properties of the feedstock used for its production. In this study, a computer model-based C++ was used to evaluate the performance characteristics of biodiesel fuels produced from local South African sunflower and canola oil feedstocks. The developed model was validated using experimental results. The performance characteristics of biodiesel and biodiesel-diesel blends from these oils were tested in a Mercedes Benz OM 364A turbocharged four-stroke, four-cylinder direct ignition industrial diesel engine. Results show similar combustion characteristics for all the tested samples. Diesel shows a higher brake power and higher exhaust gas temperature than all the tested fuel samples. The brake thermal efficiency increases with the amount of biodiesel in the biodiesel-diesel blends. Biodiesel and its diesel blends show higher specific fuel consumption than diesel. In terms of emissions, nitrogen oxide emission was higher for biodiesel and its blends with diesel compared with diesel while smoke emission from biodiesel and its diesel blends was lower compared with diesel.