bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of airport noise on the health situation of host communities: a case study of Obong victor Attah international airport, Akwa Ibom state, Nigeria
Authors: Morufu Olalekan Raimi , Blossom ADINDU Ihuoma
Published: April 2024

Air transport has generated negative impacts; one of such impact is Aircraft noise. An increased use of air transportation has overtime resulted into a corresponding increase in aircraft noise which has placed the health of residents of the airport vicinity at great risk. All these notwithstanding, negative activities like noise generation from airports generate impacts of great concern. These impacts have been the major concern of residents at the airport vicinity. Interestingly, this research work measured the impacts of airport noise on the health situation of host communities of Uruan, Okobo and Nsit-Atai. LGA’s in Akwa-Ibom State. Health is the major parameters used in measuring these impacts. A buffer was used to demarcate the study into zones and a systematic sampling technique was employed in selecting the households to be sampled. The sample size composed of 400 respondents and this was determined from the population of the host communities using the Taro Yamane formula. Data needed for this study was obtained from questionnaires administered to the 400 respondents. Secondary data was collected from Obong Victor Attah International Airport Development Company. A sound meter was also used to determine the noise levels within the buffer distance. Data collected were analysed using; percentages, charts, maps and simple linear regression statistical tools. The hypothesis formulated was tested using simple linear regression analysis; the null hypothesis which stated that airport does not significantly impact health was rejected. Results from the analysis indicated that the major health issue resulting from the airport noise were annoyance (43.8%), sleep disturbance (37.9%), increased heart beat (12%) and hearing loss (5%). From this result it is inferred that, Obong Victor Attah International Airport influences negatively on the health of the host communities in the study area. It is recommended that the members of the host community should be enlightened and educated about the dangers of the airport noise on their health. Also, citizen advocacy should be intensified and encouraged on the health impact of noise. it is also imperative that residential buildings should not be approved too close to the Airport this would reduce the severity of these health issues associated with Airport noise.
Palynotaxonomy of the genus Gladiolus (Iridaceae) of the flora of Armenia
Authors: Hayrapetyan A. M. , Muradyan A. H. , Sonyan H. H. , Asatryan M. Y. , Oganesian M. E.
Published: April 2024

The genus Gladiolus L. (Iridaceae) includes about 250–280 species of perennial herbaceous corms, distributed in Africa, Madagascar and Eurasia. The taxonomy of the genus is not simple, since the characteristics of the species are quite confusing. Our article presents the results of a comparative palyno-morphological analysis of all 9 species and 2 subspecies of the genus Gladiolus of the Armenian flora. The purpose of the work is to identify diagnostic characteristics of pollen used to distinguish individual taxa. Six morphological characters, namely the length of the polar axis (P), as well as the length of the large and small equatorial diameters (E1 and E2, respectively), exine thickness and the number of echinae and perforations per unit area of the pollen surface were measured using light microscopy (LM) and scanning electron microscopy (SEM). Literature data, as well as the results of our previous studies, showed that the genus is characterized by stenopalynous anasulcate pollen grains with a two-lane operculum. In the presence of significant uniformity in pollen characteristics, our studies revealed that among the species studied, G. hajastanicus and G. kotschyanus have slightly larger pollen grain sizes, and the pollen of the species G. tenuis is characterized by a minimal number of both echinae and perforations per unit surface area of the pollen grain (using SEM). A certain difference has also been established between the subspecies of the species G. kotschyanus. In particular, the sizes of pollen grains of G. kotschyanus subsp. kotschyanus (based on E1) is slightly larger than in G. kotschyanus subsp. distichus. At the same time, the number of echinae and perforations per unit surface of a pollen grain (at the SEM level) in the subspecies G. kotschyanus subsp. distichus is approximately twice as large as G. kotschyanus subsp. kotschianus.
Assessing the effect of glyphosate on the shrimp Palaemon adspersus: Acute toxicity and biomarker responses
Authors: Hamoudi F. S. , Berghiche H. , Chouahda S.
Published: April 2024

Glyphosate, a widely used agricultural herbicide, poses a risk of aquatic contamination. This study assessed the acute toxicity of glyphosate in the shrimp Palaemon adspersus (Decapoda, Palaemonidae). The sublethal (LC10 and LC25) and lethal (LC50 and LC90) concentrations were estimated after 24 and 96 hours of exposure. The compound was added to rearing water at LC25 and LC50– for 96 hours during the exposure phase (24, 48, 72, and 96 hours). Shrimp were then transferred to clean seawater and collected during the recovery phase (24, 48, 72, and 96 hours). Enzymatic activities in shrimp heads and flesh fragments were measured for acetylcholinesterase, gluthatione S-transferase, and malondialdehyde, followed by lipid quantification. Toxicological data indicated the toxicity of glyphosate against shrimp, exhibiting a dose-response effect. Lethal concentrations LC10, 25, 50, 90 were 1.15, 1.25, 1.35, 1.59 mg/L after 24 hours and 0.99, 1.06, 1.14, 1.31 mg/L after 96 hours. Two-way ANOVA during the treatment phase showed significant (P < 0.05) effects of glyphosate concentration and treatment time on all the biomarkers. During the recovery phase, shrimp compensated for herbicide effects, demonstrating acute toxicity that caused oxidative stress and neurotoxic effects at sublethal concentrations. Careful control is recommended to minimise the negative impacts on non-target aquatic organisms.
Distribution of non-marine ostracods in the streams of the Ceyhan River Basin (Turkey) and assessment of their indicator properties for water quality
Authors: Yavuzatmaca Mehmet , Çelekli Abuzer , Dügel Muzaffer , Lekesiz Ömer
Published: April 2024

The potential of ostracod species as indicators of water quality and the influence of key ecological parameters on their distribution were evaluated by collecting samples from 39 streams during the spring, summer, and autumn seasons. Thirty-seven ostracod taxa (23 living, 14 subfossil) were identified, with Hemicypris anomala (Klie, 1938) being newly reported for Turkey. The summer season exhibited the highest diversity, indicated by the highest Shannon index value of 2.119, while the spring season showed the lowest diversity with a Shannon index value of 1.673. The variability in species composition was greater in the autumn than in other seasons. Among the nine factors affecting species distribution, the first three were found to be total nitrogen, magnesium, and elevation. Ilyocypris decipiens Masi, 1905 and Stenocypris intermedia Klie, 1932 indicated medium water quality in relation to the electrical conductivity, dissolved oxygen, total nitrogen and phosphorus. Stenocypris intermedia depicted waters of medium quality for biological oxygen demand and poor quality for nitrate. Ilyocypris monstrifica (Norman, 1862) signaled waters of good quality for total nitrogen and medium quality for dissolved oxygen. Potamocypris fallax Fox, 1967 and Potamocypris similis G.W. Müller, 1912 characterized good and medium water quality regarding dissolved oxygen and total phosphorus, respectively. Cypridopsis vidua (O.F. Müller, 1776) was identified as a positive-pollution indicator related to ammonium. The results suggest that ostracods have great potential as indicators of water quality, but more detailed studies on water quality parameters and ostracods are needed.
Study of silicon dioxide nanoparticles on the rheological and mechanical behaviors of self-compacting geopolymer concrete
Authors: A Vigneshkumar , Christy C. Freeda , Muthukannan M. , Alengaram U. Johnson , Maheswaran M. , Johnson Jeyaraj Nittin
Published: April 2024

Geopolymer concrete (GPC) is a rising eco-conscious substitute for traditional cement-based concrete, bringing the construction industry closer to sustainability. Self-compacting geopolymer concrete (SCGC) enhances the concrete flowability and fills the congested reinforced areas without vibrators in concrete structures such as bridges, tunnels and canals. This study aims to analyze the impact of silicon dioxide nanoparticles (NS) on the rheological and mechanical properties of SCGC to optimize the dosage of NS in SCGC. For this purpose, NS (0–6%) blended in partially distributed binders of fly ash and ground granulated blast furnace slag (50:50) with 0.5 alkaline binder ratio, 2% superplasticizers (9 kg m−3) (MasterGlenium SKY 8233) and 12% extra water (54 kg m−3). Sodium silicate solution and sodium hydroxide ratio of 2.5 was used for this study. It is observed that SCGC with 3% NS replacement complied with the guidelines of EFNARC. According to the T50cm slump flow test, V-funnel test, and L-box test results meet the guidelines of up to 4% NS replacement, and 3% NS addition offers excellent mechanical properties in SCGC. This study concluded that the replacement of 3% of NS improved the fresh and hardened properties of SCGC, which can apply to construction.
From everyday life to measurable problematic smartphone use: The development and validation of the Smartphone Use Problems Identification Questionnaire (SUPIQ)
Authors: Su Shuang , Cousijn Janna , Molenaar Dylan , Freichel René , Larsen Helle , Wiers Reinout W.
Published: April 2024

Background and aims

Problematic smartphone use (PSU) has gained attention, but its definition remains debated. This study aimed to develop and validate a new scale measuring PSU-the Smartphone Use Problems Identification Questionnaire (SUPIQ).

Methods

Using two separate samples, a university community sample (N = 292) and a general population sample (N = 397), we investigated: (1) the construct validity of the SUPIQ through exploratory and confirmatory factor analyses; (2) the convergent validity of the SUPIQ with correlation analyses and the visualized partial correlation network analyses; (3) the psychometric equivalence of the SUPIQ across two samples through multigroup confirmatory factor analyses; (4) the explanatory power of the SUPIQ over the Short Version of Smartphone Addiction Scale (SAS-SV) with hierarchical multiple regressions.

Results

The results showed that the SUPIQ included 26 items and 7 factors (i.e., Craving, Coping, Habitual Use, Social Conflicts, Risky Use, Withdrawal, and Tolerance), with good construct and convergent validity. The configural measurement invariance across samples was established. The SUPIQ also explained more variances in mental health problems than the SAS-SV.

Discussion and conclusions

The findings suggest that the SUPIQ shows promise as a tool for assessing PSU. Further research is needed to enhance and refine the SUPIQ as well as to investigate its clinical utility.
New records of three alien Solanum species in Morocco
Authors: Khamar Hamid , Dallahi Youssef , Homrani Bakali Abdelmonaim
Published: April 2024

Recent ﬂoristic surveys conducted in various regions of Morocco have revealed three new records of non-native vascular plants of the genus Solanum, namely, S. abutiloides Bitter & Lillo, S. bonariense L., and S. nitidibaccatum Bitter. The occurrence of these alien species in Morocco is documented here for the ﬁrst time. For each species, information on its national habitat and distribution are given. More-over, the distinguishing morphological features of these three species are compared with the most similar species (including Moroccan Solanum species).
Predicting Pizza Costs: An Evaluation of Random Forest and TPOT AutoML
Authors: Singh Abhishek , Hasan Zohaib , Jai Nirdesh
Published: April 2024

In recent years, pizza has become more and more popular in India. Pizza has been available in the US for a while, but in recent years, its craze has really taken off. Important pizza-related businesses are thus seeing great investment and development opportunities in this area. Pizza is quickly rising in popularity as the preferred food for many Indian residents, and the number of restaurants serving it is expanding. In order to anticipate pizza prices, this study assesses how effective the two machine learning techniques Random Forest and TPOT (Tree-based Pipeline Optimization Tool) AutoML are. For model training and assessment, a dataset comprising several pizza variables, like diameter, toppings, and extra ingredients, was utilized. Metrics like mean squared error and R-squared were used to evaluate the prediction accuracy of both models after they had been trained and tested according to normal protocols. The findings suggest that while TPOT AutoML performs somewhat better in some circumstances, Random Forest and TPOT AutoML both exhibit encouraging performance in forecasting pizza costs. These results demonstrate how well machine learning methods work to forecast intricate pricing schemes in the food sector.
Comparative Study of Neural Network Models for Prediction of Chaotic System
Authors: Namdeo Ratnesh Kumar , Chandrakar Om Prakash
Published: April 2024

Research into the ability to forecast the internal dynamics of chaotic systems is vital. The chaotic character of climatic systems is a major barrier to accurate climate prediction. Numerous studies have been conducted so far on the topic of numerical simulation approaches for the simulation and prediction of chaotic systems. Chaotic systems are difficult to anticipate with numerical simulation approaches due to issues like sensitivity to beginning values, error accumulation, and inappropriate parameterization of physical processes. Here, we looked into the architectures of Neural Networks. The present literature study has provided confidence in the efficacy of artificial neural networks as a powerful tool for predicting internal dynamics climatological data. Research demonstrates that ANNs have the potential for prediction of climatological analysis since they are ideally adapted to situations requiring complex nonlinear interactions.
Electricity Generation by Using Waste Materials
Authors: . Shafiya , K Sneha , N Sushmanjali , R Vinay , M N Geetha
Published: April 2024

Transforming trash into electricity is a key focus of our initiative, aimed at helping small towns efficiently manage waste and reducing the strain on dumping yards while generating power for villages. The electricity produced not only illuminates streets but also has a positive impact on the overall community. It introduces comprehensive waste management solution to address challenges faced by city dumping yards in smaller towns. Unlike previous endeavors they concentrated solely on specific waste materials, our approach prioritizes electricity generation from all types of waste, including dry and wet waste. Moreover, we've overcome the drawbacks of earlier surveys by actively managing the liberation of carbon dioxide and other gases. In this innovative process, we not only generate electricity but also utilize the liberated carbon dioxide for water purification and agricultural purposes. The advantages of our initiative include the utilization of various waste materials, cost-effectiveness, and contributions to maintaining the ozone layer, addressing multiple environmental concerns.
APPLICATION OF MICROBIOMORPHIC AND TOTAL PHOSPHORUS ANALYSES TO THE ARCHAEOLOGICAL STUDY OF THE SREDNY ZELENCHUK TEMPLE, NIZHNY ARKHYZ HILLFORT
Authors: Druzhinina Inga , Druzhinina Olga , Golyeva Alexandra , Chkhaidze Victor
Published: April 2024

The article presents the results of the first geoarchaeological study of the materials of Christian burials identified in the interior of the Middle Zelenchuk temple of the 10th century in the Nizhne-Arkhyz ancient settlement (Republic of Karachay-Cherkessia). The results of microbiomorphic (phytolith) and total phosphorus content analyses allowed us to reveal previously unknown features of the funeral rites of the multicultural and multi-ethnic Christian population of one of the largest cities of the North Caucasus in the Middle Ages. The differences in funerary practices between the 11th and 13th centuries became evident when studying even a small group of funerary complexes in which people of the same social group – representatives of the social elite of Western Alania – were buried. The geoarchaeological study showed an abundance of plant and animal organic matter in the burials. The complex analysis of archaeological materials and data obtained during the microbiomorphic study allowed us to conclude that members of the urban Christian community had several burial traditions: in stone boxes (tombs), in wooden frames, and a mixed ritual when a wooden structure was placed in a stone box. The presence of wooden bark particles in the burials seems to be related not so much to the material from which the burial structures were made as to the presence in the graves of bark or bast objects (bast caskets or boxes, birch bark amulets, toys, etc.). The tradition known from pagan Alanian burials of placing the head of the deceased on a “stone cushion” (more typical for male burials) was preserved in early Christian burials. In one of the four women’s graves studied, the analysis showed the presence of a “hay pillow.” Probably, before the burial, a ritual of washing the deceased was performed, as evidenced by the presence of diatoms and sponge spicules in the samples.
ALTAI IN THE PRE-TURKIC PERIOD: HISTORICAL FATE OF THE NOMADS OF THE DYALYAN TRADITION OF RITUAL PRACTICE
Authors: Seregin Nikolay , Matrenin Sergey
Published: April 2024

The article presents the study of the Dyalyan tradition of ritual practice characteristic of one of the groups of the Bulan-Koby archaeological culture of Altai in the last quarter of the 1st millennium BC – the first half of the 1st millennium AD. The key features of this tradition are identified, the most significant of which is the burial of an individual oriented to the western sector of the horizon, accompanied by a horse laid “above” or “at the feet” of the buried individual. 45 similar burials localized in the northern and central Altai have been excavated to date. These burials demonstrate the features of the formation and evolution of the Dyalyan tradition throughout the entire period of the existence of the Bulan-Koby culture. This group of the population had the greatest importance in the pre-Turkic period (second half of the 4th – first half of the 5th centuries AD). New materials from the excavations of the Choburak-I necropolis, one of the demonstrative objects of which is published and analyzed in the article, confirm that in the nomads of Dyalyan tradition were representatives of the local elite in the Northern Altai. This is evidenced by the composition of the accompanying inventory from the studied burials which included advanced models of weapons and defensive armament, equipment for a person and a riding horse. The possibilities of reconstructing the historical fate of the Dyalyan tradition bearers are presented. It should be stressed that the characteristic features of the rite were not continued in the funeral practice of the early medieval Turks. The available rather fragmentary materials make it possible to outline the western direction of the migrations of the “Dyalyans” (probably as part of the Rouran community), as well as to make an assumption about their participation in the formation of certain population groups of the Srostki culture of the Forest-Steppe Altai.
Landscapes of Galicia as Viewed through the Camera: Visualization of Belligerent Spaces of the First World War
Authors:   Yaroslavl State Pedagogical University named after K. D. Ushinsky, Yaroslavl, Likhacheva Alexandra S.
Published: April 2024

This article analyses practices of capturing the experience of the First World War on the Eastern Front and the construction of militarized life worlds by combatants of the Russian Army and photojournalists. The author aims to determine the significance of the belligerent landscapes of Galicia in the formation of participants’ specific behavioural strategies and practices in the first industrial war. Methodologically, the author relies on the synthesis of approaches of spatial research and visual anthropology, conceptual provisions of landscape studies, and cultural geography. To analyse the photographic situation on the Eastern Front of the First World War, the peculiarities of the further existence of visual images in group and collective communication, identify techniques for constructing the image of the Galician environment in 1914–1915, the author refers to photographic sources of the Russian State Archive of Film and Photographic Documents. A key thesis of the study is the assumption that through the practice of photographing militarized landscapes, mental maps of alien space were constructed, and the imaginary appropriation of the territory annexed by the law of war took place. As a result, the author concludes that the landscapes of Galicia in photographs are a phenomenological construct, and not a direct reflection of reality or objective evidence. The photographic situation itself acts as an interpretation because photographers follow the imperatives of their own (prewar) life experience, the ideas formed by the prevailing discourses, consider the technical limitations of the era and shocking experiences in the spaces of death. The author also reveals the therapeutic function of war visualization and the role of the camera as a protective barrier for the photographer. The analysis determines the dynamic relationship of strategies for capturing military experience with the course of hostilities, as well as the need to study photographic albums dedicated to the life of individual units of the Russian Army or representing a series of images in a particular locality of Galicia as a whole and consistent photographic travelogue. The modern interpretation of military photographs makes it possible to reveal a layer of environmental consequences of the First World War in Eastern Europe which is latent for the photographer.
Edinoverie in Comparative Perspective: The Struggle for Old Believer Cultural Heritage in the Perm and Nizhny Novgorod Governorates in the 19th Century
Authors:   Ural Federal University, Ekaterinburg, Palkin Aleksandr S. , White James M. ,   Ural Federal University, Ekaterinburg
Published: April 2024

Founded in 1800, Edinoverie was considered, at least by some of its twentieth-century proponents, to be a vessel for preserving Old Believer culture within the Russian Orthodox Church. Typically, historians have approached Edinoverie either in terms of policy development and theological disputation in the empire’s capitals or through the example of single regions. The article outlines the main trends in the development of Edinoverie in the nineteenth — early twentieth centuries on a nationwide scale. The work also presents a comparative study of Edinoverie parishes in the Perm and Nizhny Novgorod Governorates. The process of emergence and spread of Edinoverie in these regions is analyzed. The changes that the Edinoverie went through in different periods of its existence are noted. At the micro level, the life of Edinoverie parishes, the characteristics of the Edinoverie clergy, the problems of parishioners, the relationship of Edinoverie with the Orthodox episcopate are analyzed. As the article shows, in both parishes there were indeed similar problems in the development of the deanery, such as difficult relations with both the “official” Orthodox and Old Believers groups. However, significant differences can be noted. The dissatisfaction of Edinovertsy with the rules of Metropolitan Platon, which regulated the existence of Edinoverie in the Russian Orthodox Church, is noted. The Urals tried to solve this problem at the turn of the 1830s–1840s, de facto implementing the project of “Edinoverie on special conditions,” which was aimed at increasing the autonomy of Edinoverstsy by reassigning them to secular authorities. The Nizhny Novgorod attempt to resolve this issue occurred in 1877 and was aimed at changing the very rules of Metropolitan Platon.
Metatextual Commentary to the Heroic Poem Suvoroida by I. I. Zavalishin: Authorial Manifestation and Understanding of the Genre
Authors:   Ural Federal University, Ekaterinburg, Yaklyushina Maria S.
Published: April 2024

Issues concerning the emergence and decline of the epic poem are fairly well researched in Russian literary criticism. Irinarkh Ivanovich Zavalishin was the second author who successfully completed works of this genre following in the footsteps of M. M. Kheraskov. Yet, this author’s poems are often considered superficially as having had no serious influence on the literary process or the consciousness of contemporaries. This article looks at the unique aspect of his poem, Suvoroida, its extensive metatextual and paratextual structure, its relation to the core text and impact on the further development of the genre. The article demonstrates how in his commentary on the poem, the author expresses a new approach to the genre itself, i.e. a decisive rejection of classical fantastic elements of the traditional epic poem of the eighteenth century, postulating the value of historical accuracy and personal attitude to historical events. The article considers the immediate features of historical commentary, noting that, first of all, the author seeks to convey accurate historical information about the obstacles overcome by Suvorov and the losses of the enemy, which serves to formalize the image of the invincible hero. Finally, attention is drawn to the conceptual tension between the text of the poem and the author’s commentary on it, manifesting an active authorial presence in the text. From this tension comes the complexity in the interpretation of Suvorov’s image. As a character of the poetic text, he appears in the image of a classicist hero, sublime, magnificent, formidable, and gracious. The Suvorov of the metatext is down-to-earth, surrounded by everyday details and realities, and easy to deal with.
A modern approach to sports selection of children
Authors:   State budgetary professional educational institution ", Kalmykova S. G. ,   College (technical school) of the Olympic Reserve",   , Orenburg, Russia, Nikiforova V. P. ,   State budgetary professional educational institution "College (technical school) of the Olympic Reserve", Orenburg, Russia
Published: April 2024

The purpose of the study is to consider modern approaches to the selection of sports-gifted children and to justify the effectiveness of the introduction of a model for the selection of sports-gifted children with the determination of their sports orientation based on the use of the hardware and software complex "Become a champion". The article defines the stages of sports selection and presents a methodology for studying sports predisposition with using the complex "Become a champion".
Anxiety and depressive disorders as a result of hypokinesia and maladaptation in the information society
Authors:   Academy of Physical Culture and Sports, Southern Federal University, Rostov-on-Don, Russia, Lysenko A.V. , Lysenko D. S. ,   Academy of Physical Culture and Sports, Southern Federal University, Rostov-on-Don, Russia, Laktionova J. A. ,   Academy of Physical Culture and Sports, Southern Federal University, Rostov-on-Don, Russia
Published: April 2024

The article analyzes the reasons for the increasing incidence of anxiety and depressive disorders in the modern risk society. The ambiguous relationships of these pathologies with the level of motor activity, information loads, the pace and rhythm of modern life are considered. Literature data and the results of our own research on the significant influence of the educational and professional activities characteristics on the body adaptive capabilities and the rate of aging are presented. The possibilities of increasing the effectiveness of prevention and correction of anxiety and depressive disorders in athletes and representatives of other population groups are discussed.
Positional attacks in the competitive activities of world and Russian handball leaders
Authors:   Federal State Budgetary Educational Institution of Higher Education ", Betyutsky V. M. ,   Siberian State University of Physical Culture and Sports",   , Omsk, Russia, Filatova N. P. ,   Federal State Budgetary Educational Institution of Higher Education "Siberian State University of Physical Culture and Sports", Omsk, Russia
Published: April 2024

The article presents a fragment of a study of the competitive activities of highly qualified men's handball teams of Russia and national teams of countries participating in the 2023 World Cup. It is noted that the leading teams of the Russian Championship perform positional attacks mainly lasting 15-35s, similar data were obtained in the matches of the teams of the 2023 World Cup. The relative short duration of attacks determines the high tempo and, accordingly, the effectiveness of the game. At the same time, a large number of attacks in the match of the leading teams make it possible to highlight high-speed and high-speed strength endurance as significant physical qualities that determine the direction of functional training, both for highly qualified handball players and for athletes of the nearest reserve.
Creation of sports-playing environment in the process of orientation to ice hockey of senior preschool children
Authors:   State Autonomous Institution of Additional Education of the Sverdlovsk Region Olympic Reserve Sports School ", Istomin S. O. ,   Spartakovets Hockey Academy",   , Yekaterinburg, Russia, Shvaikovskaya M. V. ,   State Autonomous Institution of Additional Education of the Sverdlovsk Region Olympic Reserve Sports School "Spartakovets Hockey Academy", Yekaterinburg, Russia
Published: April 2024

The article deals with the creation of sports and play environment in the process of orientation of children of 5-7 years old to ice hockey, which provides the effectiveness of selection to physical culture and sports organisations at the initial stage. The aim of the study is to justify the creation of a sports and play environment in the process of orientation of older preschool children to ice hockey. In the course of the study we used environmental, systemic and personal-activity approaches; theoretical analysis of psychological and pedagogical and scientific and methodological literature, normative and legal documents. At selection to the hockey school at the stage of initial training children of 8 years old should have skills of sports activity, so there is a need to create a sports and game environment, which will ensure the effectiveness of the process of orientation of children 5 - 7 years old to hockey. The sports and play environment of a physical education and sports organisation includes: 1) a variety of equipment, 2) specially organised game activities, 3) control over the level of physical activity; organisation of tournaments, 4) software.
REVIEW OF SOME SCHEMES FOR COMPACT PARTICLE AND NEUTRON SOURCES UNDER LASER EMISSION
Authors: Polyanskiy Artem G.
Published: April 2024

There are currently many methods and schemes for creating charged particles and neutrons. Most of
them have two main disadvantages: low frequency of particle creation and high required energy for
realization of fission and fusion processes. Laser radiation is energy of high quality and allows reproduction
of neutron, electron, and ion fluxes with high frequency. Therefore, the use of lasers is the
most promising to maximize the useful effect in the creation of elementary particles and ions. We have
studied the optimal schemes of particle creation under the influence of low-power laser sources, carried
out comparative analysis, which reveal advantages and disadvantages of each system.
Tapping the Brakes: The Effect of the 2023 United Auto Workers Strike on Economic Activity
Authors: Rua Gisela , Tito Maria D.
Published: April 2024

The United Auto Workers (UAW) union tapped the brakes and called for a strike against all Detroit Three automakers—General Motors (GM), Ford, and Stellantis—on September 15, 2023, after having failed to reach an agreement with the automakers on a new four-year contract. The strike lasted for about six weeks and was the first strike in history targeting all Detroit Three automakers.
Re-circular el cuidado en (post)pandemia: (in)movilidad e hiperconexión en las familias transnacionales chinas entre Zhejiang y España
Authors: Lamas-Abraira Laura
Published: April 2024

Este artículo aborda el impacto de la pandemia de Covid-19 en la circulación del cuidado en las familias transnacionales chinas. Con base en una etnografía multisituada entre la provincia de Zhejiang y España (2016-2019) y posterior desarrollo de una etnografía virtual (marzo 2020-marzo 2022), los resultados apuntan a las cambiantes demandas productivas, las restricciones de movilidad internacional y trabas económicas y burocráticas adicionales, así como a las percepciones de seguridad en los diferentes contextos nacionales, como factores clave en la reconfiguración de la (in)movilidad física relacionada con el cuidado. En paralelo, se da una creciente movilidad virtual e hiperconexión que revela el rol clave de las tecnologías de la información y la comunicación (TIC) en este contexto. Las conclusiones enfatizan la alteración de algunos patrones de circulación de cuidado habituales y la necesidad de abordar una investigación longitudinal para conocer el alcance real de los efectos de la pandemia.
PREDICTION OF DRIVING TIME OF ELECTRIC SCOOTER (E-SCOOTER) DRIVERS BY MACHINE LEARNING
Authors: İnaç Hakan
Published: April 2024

This study aims to estimate the driving times of drivers who prefer electric scooter vehicles. In general, e-scooters reduce the loss of time caused by traffic jams because, thanks to their smaller size and maneuverability, these vehicles provide rapid progress in urban journeys. E-scooters also offer an advantage in finding a parking space and easy parking thanks to their more compact structure. In this study, ML algorithms were used to predict the driving times of drivers who prefer e-scooter vehicles. The AB model has performed well with a low Mean Square Error (MSE) value (0.005). The Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) values are also relatively low (0.069 and 0.039, respectively), indicating that the model's predictions are close to the actual values. Also, the high R-squared-Coefficient of Determination (R2) value (0.947) suggests that this model explains the data quite well, and its predictions approach the actual values with high accuracy. On the other hand, the GB algorithm performed poorly compared to different algorithms, with its high margin of error and low accuracy rate. These results provide an advantage in time management by estimating the travel time a driver will make with the e-scooter. As a result, e-scooters offer drivers the opportunity to save time and manage their daily mobility more effectively, driving these vehicles attractive for transportation.
Menopausal hormone therapy and Alzheimer’s disease: A literature review
Authors: Luzik Yuliya V. , Isaeva Sapiyat G. , Svidinskaya Evgeniya A. , Ageev Mikhail B. , Sosnova Elena A.
Published: April 2024

This paper presents a review of the current literature on the possible relationship between menopausal hormone therapy and Alzheimer’s disease. Increasing life expectancy in modern society is steadily leading to health problems in older women. Approximately 46.8 million people worldwide currently have cognitive disorders, and 2/3 of them are women. At the age of ≥65 years, every sixth woman and every eleventh man experience a form of higher nervous system pathologies. Older people are most often diagnosed with Alzheimer’s disease. It is a neurodegenerative disease that leads to problems with memory and cognitive functions and is characterized by changes in behavior and social-adaptive position of a person in society.
One theory states that dementia is caused by changes in the endocrine status during menopause, particularly a decrease in estrogen levels. Currently, hormonal drugs are being considered a way to reduce the risk of neurological disorders. The possibility of preventing dementia, particularly Alzheimer’s disease, has long been of interest to leading experts in this field. The prevention of these diseases and prolongation of active longevity are becoming more relevant than ever. The relationship between menopausal hormone therapy and the risk of Alzheimer’s disease is receiving increasing attention.
Сonnexin-43 in cells of injured rat sciatic nerve
Authors: Kolos Elena A.
Published: April 2024

BACKGROUND: It is known that intercellular communications in the peripheral nervous system are provided by various types of intercellular contacts, in particular, gap junctions formed by connexin proteins. The literature contains data on changes in the expression of connexin-32, connexin-46 and other types of connexins during nerve injury. However, very few studies describe changes in connexin-43 expression in similar pathologies.
AIM: The purpose of this study was to study the distribution and localization of the gap junction protein connexin-43 (Cx43) in cells of intact and injured rat sciatic nerve.
MATERIALS AND METHODS: Damage to the sciatic nerves of Wistar rats of the experimental group (n=5) was carried out by nerve ligation for 40 s. Animals without damage of sciatic nerve were studied as a control group (n=5). Immunohistochemical detection of Cx43 was performed on paraffin sections.
RESULTS: It has been established that the protein is contained in the cells of the perineurium and epineurium of both the intact nerve and after the application of a ligature. In the area of the endoneurium, in the absence of nerve damage, Cx43 is detected only in the endotheliocytes of a few vessels. In the endoneurium of the injured nerve, a large number of large Cx43-immunopositive cells with processes were identified.
CONCLUSIONS: It has been established that Cx43-containing cells are identified in the endoneurium of the sciatic nerve only after damage. To clarify whether such cells belong to a specific cell type, additional studies are necessary.
The state of cancer care in Russia: liver cancer – (C22). Age-related characteristics of morbidity and mortality, quality of registration, effectiveness of patient treatment. (clinical population study). Part 1
Authors: Merabishvili Vakhtang M. , Bagnenko Sergey S. , Balakhnin Pavel V. , Busko Ekaterina A.
Published: April 2024

A clinical-population study was conducted to identify patterns in the dynamics of incidence, mortality, and patient accounting for liver cancer in Russia, as well as the specifics of changes in the structure of affected individuals by detailed localization and age. Over an 11-year period, the incidence of liver cancer in Russia increased by 24.4%, while mortality rose by 9.6%. Special attention was paid to the nature of changes in age-specific incidence and mortality rates for the population of Russia with liver cancer. The aim of the study was to investigate the dynamics of key parameters of incidence, mortality, and the quality of primary patient accounting for liver cancer at the population level in Russia and the Northwestern Federal District of the Russian Federation. The study results confirmed the severity of the problem of this pathology and the challenges associated with the timely detection and provision of adequate care to patients with liver cancer. In some territories, the mortality rate from liver cancer exceeded the number of newly diagnosed patients by 2–3 times. The impact of the coronavirus infection pandemic on the quality of registration of liver cancer patients was also assessed. The study also presented modern possibilities for early diagnosis and treatment of patients with liver cancer.
Análise da gestão de pessoas como preditora da confiança organizacional – validação de um modelo teórico
Authors: Ribeiro Elaine Nolasco , Santos Maria Eunice Dos
Published: April 2024

O artigo teve como objetivo verificar a influência das políticas de Gestão de Pessoas (GP) na confiança do empregado de uma empresa pública. O desempenho do modelo foi estimado por meio da Modelagem de Equações Estruturais. Foi utilizada uma base de dados primários com informações de 456 empregados de uma empresa pública. Os achados suportam a hipótese de que a percepção das políticas de GP contribui para explicar o nível de confiança dos empregados em sua organização, uma vez que todas as políticas de GP se relacionaram de forma significativa e positiva com, no mínimo, um fator da confiança. Este artigo possibilitou confirmar por meio de uma Análise Fatorial Confirmatória (CFA) a estrutura da Escala de Percepção de Políticas de Gestão de Pessoas (EPPGP) e da Escala de Confiança do Empregado na Organização (ECEO). E, por meio da SEM, foi possível validar o modelo teórico em que GP é preditora a confiança do empregado na organização. Foi possível contribuir com pesquisas sobre comportamento organizacional, em especial pelo fato de a pesquisa ter sido realizada no setor público, posto que trabalhos sobre GP na administração pública têm se mostrado mais escassos do que os que abordam o setor privado da economia.
Fatores de satisfação em uma franquia de cosméticos e perfumaria
Authors: Palavecini Andressa Carla , Bataglin Jaiarys Capa , Miecoanski Flávia Regina
Published: April 2024

Satisfação do cliente é um fator importante a ser analisado para o alcance de objetivos da empresa. Diante disso, o presente estudo teve como objetivo analisar os fatores que contribuem para a satisfação e fidelização dos clientes de uma franquia de cosméticos e perfumaria. A abordagem desse estudo caracteriza-se como quantitativa e a pesquisa é do tipo descritiva. Os dados foram coletados por meio de um questionário estruturado com perguntas fechadas e aplicado em uma amostra de 76 clientes. As análises foram realizadas em três partes, sendo: (i) a estatística de confiabilidade do questionário por meio do Alfa de Cronbach; (ii) análise de frequência referente ao perfil dos respondentes e à satisfação em relação aos produtos e serviços; (iii) e análise fatorial para as dimensões da qualidade do produto e do serviço. A partir da análise fatorial, foram extraídos três fatores para a qualidade dos produtos, sendo eles: valor percebido, imagem da marca e confiança; e dois fatores para a satisfação relacionada aos serviços, sendo eles: (i) o conhecimento e (ii) tangíveis.
A evolução do emprego formal no município de Paudalho-PE: um levantamento baseado em dados governamentais no período de 2010 a 2019
Authors: Oliveira José Augusto de , Souza Eliabe Roberto de
Published: April 2024

O estudo sobre o emprego formal e a administração pública municipal pode trazer novos (re)desenhos de políticas públicas para a formalização do emprego, gerar renda, bem-estar social e atendimento de demandas da sociedade. O objetivo geral desta pesquisa foi descrever a evolução de empregos formais no Município de Paudalho-PE entre os anos de 2010 a 2019. Os procedimentos metodológicos tiveram base na abordagem quali-quantitativa, os dados secundários foram obtidos na Base de Dados do Estado de Pernambuco e foi realizada a análise documental. Os resultados apontaram que o panorama da geração de empregos apresentou horizontes positivos e superiores para os setores de atividades como “Comércio”, “Construção Civil” e “Serviços”. Em 2016, foi o ano em que o município paudalhense contribuiu com a maior taxa de geração de empregos formais em relação ao estado de Pernambuco. No que diz respeito à geração de empregos formais na administração pública paudalhense, percebeu-se retração no quadro de servidores públicos durante os anos da série em estudo. Sobre o setor de atividade que mais gerou empregos formais foi o da “Construção Civil”. Concluiu-se que a administração pública paudalhense é a menor geradora de empregos formais para o município, ao passo que o setor da “Construção Civil” é o maior gerador de empregos formais em Paudalho-PE entre os anos de 2010 até 2019.
Social capital and corporate resilience: The case of small and medium enterprises in Vietnam
Authors: Dinh Hien Thi Thu , Nguyen Quyen Le Hoang Thuy To , Nguyen Phong Thanh
Published: April 2024

This study aims to investigate the role of social capital in fortifying resilience within Vietnam's SMEs, in the context of global and domestic volatility, uncertainty, complexity, and ambiguity coupled with resource constraints. Employing quantitative data analysis, the research performs a survey of 500 SMEs located in three regions, including the North, Central, and South of Vietnam. Simple random sampling strategy is applied based on the list of SMEs. Questionnaires have been sent to the representatives of the SMEs management board after being contacted and confirmed the voluntary participation of the survey. Using the PLS-SEM technique, a variance-based approach is conducted. The findings demonstrate the positive influence of both external and internal social capital on distinct aspects of resilience. Specifically, external social capital significantly enhances flexibility and adaptability, while internal social capital correlates with agility, flexibility, and anticipatory capability. These results provide the scientific groundwork for effectively harnessing social capital to augment SMEs resilience in Vietnam. Understanding the impact of social capital on resilience offers practical guidance for policymakers, business owners, and practitioners in shaping strategies and policies to fortify SMEs against the challenges of the dynamic business environment. Furthermore, by contributing insights into the relationship between social capital and SMEs resilience, this research enriches discussions on SMEs development and resilience, thereby fostering sustainable progress in Vietnam.
Reimagining mathematics education: Identifying training needs and challenges among public elementary school teacher’s post-pandemic
Authors: Valle Lislee
Published: April 2024

The sudden shift in the education system during the pandemic and its subsequent evolution during the post-pandemic era have been pivotal in fostering significant educational development and growth. However, this paradigm shift has not been without challenges. This paper aims to investigate the challenges faced by 68 mathematics teachers in four public elementary schools in the Philippines. The respondents were purposively selected to answer the study’s instrument. Using a descriptive survey research methodology, this study explored the five domains in teaching mathematics, namely planning lessons, executing lessons, assessment, mathematical knowledge, and using technology tools. This paper revealed that novice, experienced, and highly experienced teachers alike had moderate difficulty enriching mathematical knowledge and utilizing technology in teaching the subject matter. Moreover, teachers with more than five years’ experience had moderate difficulty in the five domains of teaching mathematics in the post-pandemic era. This finding emphasizes the widespread impact of the education shift for teachers of all levels of experience. The paper further emphasizes the importance of supporting experienced teachers during this transformative phase of formulating innovative learning activities and adapting to reimagined pedagogical concepts. Consequently, this study underscores the need for additional training interventions to enhance their mathematical knowledge and use of technology as an integral teaching tool.