bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Stability and Oscillations of Porous Power and Sigmoid Functionally Graded Sandwich Plates by the R-Function Method
Authors:   National Technical University Kharkiv Polytechnic Institute, Kurpa Lidiia V. , Shmatko Tetiana V. ,   National Technical University Kharkiv Polytechnic Institute, Linnyk Hanna B. ,   National Technical University Kharkiv Polytechnic Institute
Published: December 2023

In this paper, the R-function method is used for the first time to study the stability and oscillations of porous functionally graded (FG) sandwich plates with a complex geometric shape. It is assumed that the outer layers of the plate are made of functionally graded materials (FGM), and the filler is isotropic, namely ceramic. The differential equations of motion were obtained using the usual first-order shear deformation theory with a given shear coefficient (FSDT). Two models of porosity distribution according to the power (P-law) and sigmoid (S-law) laws were studied. Analytical expressions for calculating the effective mechanical characteristics of FG materials with even and uneven porosity distribution were obtained. The proposed approach takes into account the fact that the subcritical state of the plate can be heterogeneous, and therefore, first of all, the stresses in the middle plane of the plate are determined, and then the eigenvalue problem is solved in order to find the critical load. To determine the critical load and plate frequencies, the Ritz method was used along with the R-function method. The developed algorithms and software are tested on test examples and compared with known results obtained using other methods. A number of problems of stability and oscillations of the FG of porous sandwich plates with a complex geometric shape for various layer stacking schemes, various boundary conditions and laws of porosity distribution have been solved.
Study of the Stability of the Mathematical Model of the Bound Pendulums Motion
Authors:   National Technical University Kharkiv Polytechnic Institute, Surhanova Yuliia E. , Mikhlin Yurii V. ,   National Technical University Kharkiv Polytechnic Institute
Published: December 2023

The article presents a study of the dynamics of an oscillatory dissipative system of two elastically coupled pendulums in a magnetic field. Nonlinear normal modes of oscillation of a pendulum system have been studied, taking into account the resistance to the medium and the damping moment created by the elastic element. A system with two degrees of freedom is considered, in which the masses of the pendulums differ significantly, which leads to the possibility of localization of oscillations. In the following study, the mass ratio is chosen as a small parameter. For approximate calculations of magnetic forces, the Padé approximation is used, which best satisfies the experimental data. This approximation provides a very accurate description of the magnetic excitation. The presence of external influences in the form of magnetic forces and various types of loads that exist in many engineering systems significantly complicates the analysis of vibration modes of nonlinear systems. Studies have been carried out of nonlinear normal modes of oscillations in this system, one of the modes being a coupled mode, and the second being a localized mode. The oscillation modes are constructed using the multiscale method. Both regular and complex behavior when changing system parameters have been studied. The influence of these parameters was studied for small and large initial angles of inclination of the pendulum. Analytical solution based on the fourth order Runge-Kutta method compared with numerical simulation results. The initial conditions for calculating the vibration modes were determined by the analytical solution. Numerical modeling, consisting of constructing phase diagrams, trajectories in configuration space, and amplitude-frequency characteristics, allows one to evaluate the dynamics of a system, which can be either regular or complex. The stability of oscillation modes was studied using numerical analysis tests, which are implementations of the Lyapunov stability criterion. In this case, the stability of the oscillation modes is determined by assessing the orthogonal deviations of the corresponding trajectories of the oscillation modes in the configuration space.
Combination of Electro- and Radiochemical Processes for Hydrogen and Oxygen Obtaining
Authors:   Anatolii Pidhornyi Institute of Mechanical Engineering Problems of NAS of Ukraine, Solovei Viktor V. , Kleperis Janis ,   Institute of Solid State Physics, University of Latvia, Zipunnikov Mykola M. ,   Anatolii Pidhornyi Institute of Mechanical Engineering Problems of NAS of Ukraine
Published: December 2023

It is shown that increase in the hydrogen production process efficiency can be ensured by integrating radiochemical and electrochemical processes. In this case, the obtained effect depends not only on the direct radiolysis of water, but also on the involvement of the ionizing radiation energy in the electrolysis process for the excitation of water molecules that undergo electrolysis, which leads to a decrease in the consumption of electricity for the decomposition of its gaseous components. An analysis of the main factors influencing the reduction of electricity consumption during electrolysis is presented, and the affinity of the spectra of radical ions involved in the radiation and electrochemical processes of water decomposition is shown. As a result of radiation exposure, the most energy-intensive stage of water decomposition, associated with the breaking of intermolecular bonds and the formation of active particles involved in the electrochemical process, begins. It was established that the formation of hydrogen increases due to the addition of its direct output during radiolysis and indirect production during electrolysis, initiated by the activation effects caused by ionizing radiation. It is shown that in order to increase the direct radiolytic yield of hydrogen, elements containing nanosized zirconium dioxide powder should be placed in the interelectrode space of the electrolyzer. It has also been proven that the irradiation of zirconium dioxide placed in water leads to a 4-fold increase in the yield of hydrogen compared to the option of irradiating pure water. To increase the energy potential utilization coefficient of nuclear fuel at NPPs, it is expedient to use the energy of fuel elements located in spent nuclear fuel storage pools for the application of the proposed technology. This will ensure the utilization of the ionizing radiation energy, which in existing technologies is irretrievably lost, because it is discharged in the form of low-temperature thermal emissions into the environment, which leads to thermal pollution of the atmosphere.
Study of the Structure and Properties of Deposited Layers of NiCrBSi Alloy, Modified with Composite Material
Authors:   National Technical University Kharkiv Polytechnic Institute, Sytnykov Pavlo A.
Published: December 2023

The structure and properties of deposited layers with a self-fluxing PG-10N-01 alloy of the NiCrBSi system, which is modified with composite material obtained by self-propagating high-temperature synthesis, were studied. Powders of titanium, technical carbon, refractory clay, aluminum, iron oxide, and PT-NA-01 thermosetting powder are used as the initial components of the modifying composite material. The powders were mechanically activated in a ball mill, pressed into a cylindrical sample, and then subjected to the process of self-propagating high-temperature synthesis. The deposition of the samples was carried out with a non-fusible graphite electrode with a diameter of 9.5 mm, at a current of 110 A, using an inverter power source SV-290NK. It was established that the structure of the layer deposited with the PG-10N-01 alloy consists of a solid solution based on nickel (γ-Ni) and a eutectic formed on its basis with Ni3B boride. Single inclusions of carbides of chromium Cr3C2 and boron B4C were also detected in the deposited layer. When adding a modifying composite material to the PG-10N-01 alloy, the structure of the deposited layer consists of γ-hard solution and eutectics, strengthened by carbides of titanium TiC and silicon SiC, which increase the microhardness and wear resistance of the layer. The microhardness of the layer deposited with the composite material, which contained 10% of the modifying component, is 660 HV, which exceeds the microhardness of the layer deposited with the PG-10N-01 alloy, which is equal to 510 HV. Based on the results of the research, operational tests of the set of duckfoot blades of the KPP-8 semi-trailer cultivator, aggregated with the New Holland T 6090 tractor, were carried out in the conditions of the Kamianuvatka farm (Novoukrainka district, Kirovohrad region). Based on the tests, it was proved that the relative wear resistance of duckfoot blades made of 65G steel, strengthened on the reverse side according to the "toe-working blade" scheme by depositing a layer of composite material is 1.7 times greater compared to the wear resistance of blades made by standard technology logic.
Kabile Asabiyeti Açısından Bedir Gazvesi
Authors: ARSLAN Abdurrahim
Published: December 2023

Câhiliye döneminde Araplar, değişik geleneklerin hâkim olduğu ve temelini asabiyetin teşkil ettiği kabile sistemi çatısı altında yaşıyorlardı. Kabilenin aldığı kararlar gerek siyasî gerek sosyal açıdan toplumun hayatında birinci derecede etkili oluyordu. İslâmiyet’in doğuşu sırasında kabile asabiyeti hayret verici bir şekilde etkisini göstermeye devam etmiş, bu da Kureyş ve Arap kabilelerini apaçık olan gerçekler karşısında kibirli kılmıştır. Hz. Peygamber ve Müslümanları Mekke’den göçe zorlayan Kureyş, Medine’den de onları çıkarıp atmak hatta tamamen yok etmek arzusundaydı. Kureyş’in tehditlerine karşı Hz. Peygamber bazı tedbirler almıştır. Bu tedbirler sonucunda İslâm tarihinin önemli olaylarından biri olan Büyük Bedir Savaşı meydana gelmiştir. Bu çalışmada söz konusu savaş esnasında Kureyşlilerin tutumları asabiyetçilik bağlamında ele alınmaktadır. Genel olarak savaşa iştirak edenlerin tutumlarına bakıldığında Kureyş’ten az bir kesimin savaş istediği, büyük kısmının çevre baskısından, kibir ve gururdan dolayı savaşa katıldıkları ortaya çıkmaktadır. Nitekim Benî Hâşim’le siyasî çekişme içinde olan Benî Mahzûm ve Benî Abdüddâr’ın insanları savaşa teşvik ettiği ve onlara baskı uyguladığı görülmektedir. Savaşa katılma hususunda diğer kabilelerin ise pek istekli olmadıkları anlaşılmaktadır. Hz. Peygamber’in dayıları olan Benî Zühre ve Hz. Ömer’in kabilesi Benî Adî savaşa katılmazken, Benî Hâşim savaşa kerhen katılmıştır. Özellikle kervanlarının kurtulduğunu öğrendikten sonra Kureyş’in önemli kollarından sayılan Benî Ümeyye ve Benî Esed daha yoldayken dönmek istemişlerdir. Çalışmada zikredilen kabilelerin tutumuna bakıldığında Câhiliye taassubundan kaynaklanan kabile asabiyetine dayandığını söylemek mümkündür. Diğer taraftan savaşa katılmayanların veya gönülsüz katılanların Hz. Peygamber’le yakın akrabalık bağlarının olduğu görülmektedir. Dolayısıyla burada asabiyetin hem müspet hem de menfi tesiri müşahede edilmektedir. Bedir’de; Arap Yarımadası’nda ilk defa kardeşler, baba ve evlatlar birbirlerine karşı kılıç çekmişlerdir. Bunula nesep bağının câhiliyedeki önemini yitirdiği ortaya çıkmıştır.
Molla Abdullah el-Firfêlî’nin el-İşârât ve’l-Bişârât Adlı Eserinde Âyetleri Yorumlama Yöntemi
Authors: ZAMUR Hüseyin
Published: December 2023

Molla Abdullah el-Firfêlî (ö. 1374/1995) Güneydoğu Anadolu’da Selçuklulardan bu yana devam eden medrese kültüründe modern dönemin önemli âlimlerinden sayılmaktadır. Firfêlî’nin biri fıkıh diğeri tasavvuf hakkında matbu iki eseri ile bazı şiirleri mevcuttur. Firfêlî, bir medrese hocası olmasının yanında Güneydoğu Anadolu’da yetişen birçok âlim gibi bir şeyhe intisap etmiş ve ondan halifelik almıştır. Onun “el-İşârât ve’l-bişârât” adlı eserinde âyetleri yorumlama yöntemi çalışmamızın temel konusunu oluşturmaktadır. Firfêlî, bu eserini Allah’ın salih kullarını dost edinme, salih kulları sevme ve onların sohbetlerinde bulunmanın gerekliği ile başlamakta ve Hz. Peygamber’in sevilmesinin vücûbiyetiyle bitirmektedir. Firfêlî genellike savunduğu görüşleri desteklemek ve tasavvuf ile ilgili konuları açıklamak için birtakım âyetleri tefsir etmektedir. Firfêlî, bazen de bir görüşü veya rivâyeti aktarır ondan sonra da bir âyeti buna delil olarak sunar veya “bu âyetin açıklaması böyledir.” demektedir. O, Eserinde reca/ümit var olma ve Allah’tan korkma konularıyla ilgili Kur’ân-ı Kerîm âyetlerini bir müjde ve işâret olmaları hasebiyle detaylı bir şekilde tefsir etmiştir. Onun bu nedenle eserine “el-İşârât ve’l-bişârât” ismini verdiği düşünülmektedir. Firfêlî’nin bu eseri modern dönem Doğu ve Güneydoğu Anadolu’nun tasavvuf kültürünü yansıtması açısından önemlidir. Zira Firfêlî, tarikat ehli ve sûfî bir kişiliğe sahip olmasının yanında eserini baştan sona Ehl-i sünnet mezhebine uygun yazmaya gayret etmiştir. Bu yüzden âyetleri tefsir ederken genellikle tasavvufî ve batınî yorumlardan kaçınmış ve âyetleri daha çok zahirine uygun bir şekilde tefsir ettiği görülmektedir. Hatta onun tefsir ettiği âyetlerde tasavvufî tefsirlere hiç atıfta bulunmadığı görülmektedir. O, Kur’ân-ı Kerîm âyetlerini rivâyet ve dirayet metotlarını kullanarak tefsir etmişse de daha çok dirayet tefsirlerine müracaat etmiştir. Bölgenin önemli medrese âlimlerinden olması, âyetleri yorumlamadaki ilmî yetkinliğinin kaynağını göstermektedir. Zira eserinde bolca dilbilimsel açıklamalar ve nükteler görmek mümkündür.
Self-Organizing Maps Approach for Clustering OECD Countries Using Sustainable Development Indicators
Authors: YIGIT Pakize
Published: December 2023

Sustainable Development concept (SD) aims to better life for future generations. However, the COVID-19 pandemic has caused tremendous effects on people’s life in several areas. Therefore, the study aimed to investigate the impact of COVID-19 on the selected part of SD indicators in the OECD countries using Self-Organizing Map (SOM). SOM is a kind of artificial neural network (ANN) method, which is an effective clustering method to find hinder non-linear relationships between indicators. The data contained 38 OECD member countries for 11 variables for each country, covering three years (2019-2021). Firstly, descriptive statistics and Spearman rank correlation analysis were used for bivariate analysis. The coefficient of variation was also used to measure the convergence of indicators. Then, it was a two-stage clustering method using SOM and hierarchical clustering methods—the optimal cluster found according to the Silhouette Index and Davies–Bouldin Index, and as three. The convergence of gross domestic product increased gradually to 40.33% in 2019, 42.01% in 2020, and 43.69% in 2021, meaning increasing relative variability of OECD countries. While the mean of the life span was decreased, the share of health expenditure, health expenditure per capita, out-of-pocket health expenditure, and government health expenditure were increased in the study period. According to clustering analysis, the countries had similar characteristics within three years, except Colombia. Also, the USA distinguished very different characteristics from other OECD countries. Although the mean of study indicators varies due to the effect of the pandemic, the change within each OECD country showed mostly similar characteristics within three years.
Relationship between Functional Status and Quality of Life in Patients with Spinal Cord Injury: A Cross - Sectional study
Authors:   Assistant Professor, Department of Physiotherapy in Neurosciences, Shiva Trust’s Aurangabad College of Physiotherapy, Aurangabad, India., Huma Quazi Ibtesaam , Ganvir Suvarna ,   HOD and Professor, Department of Physiotherapy in Neurosciences, D.V.V.P.F.’s College of Physiotherapy, Ahmednagar, India., Harishchandre Maheshwari ,   Associate Professor, Department of Physiotherapy in Neurosciences, D.V.V.P.F.’s College of Physiotherapy, Ahmednagar, India.
Published: December 2023

Background: Spinal Cord Injury is one of the severe injuries results in loss of sensory and motor function below the level of injury which deteriorates the quality of life. The bio-psycho-social model also emphasizes on the improving the quality of life than enhancing the physical function as the primary goals of SCI rehabilitation. Many authors have reported that there is significant positive effect on activities of daily living. Therefore, improving the quality of life in individuals with SCI. Aim: To study the Relationship between Functional Status and Quality of Life in Patients with Spinal Cord Injury. Methodology: Ten subjects were enrolled according to the inclusion and exclusion criteria of the study. WHOQOL-BREF and SCIM was administered at 3rd, 6th and 9th month of injury to assess the Quality of life and Functional Status of the individuals with Spinal Cord Injury. Result: There was significant correlation between SCIM Vs Psychological domain (r=-0.66, p= 0.03*) at 3rd month, SCIM Vs Social domain (r= 0.57, p= 0.08*) at 3rd month, SCIM Vs Environmental domain (r= 0.57, p= 0.07*) at 9th month post injury. Conclusion: The study concluded that there was a positive association between the functional status and quality of life in patients with spinal cord injury at 3, 6 and 9 months of injury. KEY WORDS: Spinal cord injury, Quality of Life, Functional Status, Independence Measure, WHOQOL-BREF, Spinal Cord Independence Measure.
Structural entropy as a measure of fractioning of mass-flows in ecosystems under the influence of transport pressure
Authors:   People’s Friendship University of Russia (RUDN University), Khaustov Aleksandr P. , Redina Margarita M. ,   People’s Friendship University of Russia (RUDN University)
Published: December 2023

The features of the distribution of polycyclic aromatic hydrocarbons considered as geochemical markers of mass transfer in the structural transitions of «snow–soil–plants» of urban soil-plant systems are analyzed. The expe-rimental impact test site is an area with an intensive transport press – the RUDN campus with an adjacent green zone (south–western district of Moscow). Spatial variability of polyarenes in media and structural transitions is chaotic. Cal-culations of polyarene emissions from fuel combustion, tire abrasion, brake pads and asphalt have been carried out. Such an «overlay» of pollution from external sources contributes to the intensive chaoticization of structural transitions in the designated system. The role of extensive parameters (entropy increments, Gibbs energy, enthalpy) in media and various structural transitions is estimated. The wave nature of the impact of motor vehicles as sources of pollution is emphasized. Informative parameters of the fractionation of the polyarene complex are the dependences of the increment of structural entropy on the translocation coefficients in the interacting components. The thermodynamic apparatus makes it possible to identify the factors and mechanisms that determine the accumulation of polyarenes in natural and transport-loaded conditions. Mobile and neutral pools of migrating polyarenes in the soil-plant system were identified by grouping methods. The analysis of migration in the nonequilibrium system «snow–soil–plant roots – stems» using the principles of thermodynamics revealed the chaotic processes of migration and accumulation. The leading role in the structuring of polyarene flows in the above system is assigned to the rhizosphere. Based on the variability of thermody-namic parameters, the concept of structural flowability of systems is introduced. The introduction of the concept makes it possible to objectify the procedure for assessing the intensity of anthropogenic loads and to identify areas of the soil-plant system with maximum accumulation and with maximum «throughput» in relation to polyarenes.
Procedure for calculation of technological values of emissions with a purpose of developing for an integrated environmental permit
Authors:   Perm State University, Emelyanov Mikhail A. , Klochikhina Olga S. ,   Perm State University
Published: December 2023

System of technological regulations of negative impact on the environment based on best available tech-niques could be perspective environment regulation. The hygienic regulation of environment is based on the principle of non-exceedance of outdoor (ambient) air pollu-tion level at control points. The level is represented by maximum allowable concentrations. The implementation of technological standards into the environment regulation has changed its essence. Technological standards are standards for emissions and discharges of pollutants, as well as standards for permissible physical impacts, which are established using technological values.The assessment of air pollution and comparing the results with technological values seems possible after implementation of technological standards into the environment regulation. The main focus of the study is to determine the procedure of calculating the technological values of emissions. It was considered on the example of an inorganic chemical industry enterprise in the Perm region. A number of environmental documentation developed for the enterprise was analyzed, the methodology for selecting information and technical reference documents was de-scribed during the study to calculate the technological values of emissions. Procedure calculating the technological val-ues of pollutant emissions was developed during the study. It is universal and applicable to enterprises in any sectors of industry.
Composition and structure of phytoplankton in water objects with extreme conditions (Perm region, Russia)
Authors:   Institute of ecology and genetics of microorganisms of the Perm Research Centre of the Ural Branch Russian Academy of Sciences, Belyaeva Polina G.
Published: December 2023

On the example of natural (river Kitenka) and artificial (leachate a municipal landfill "Sofrony", Perm) water objects under the influence of anthropogenic impact, a significant transformation of phytoplankton was shown.The development of Euglenophyta, Chlorophyta and Cyanoprokaryotf, characteristic of polluted eutrophic waters, was revealed. The reorganization of the structure of algocenoses associated with an increase in the proportion of Cyanopro-karyota (75% of the abundance and 25% of the biomass), Euglenophta (23% of the abundance and 45% of the biomass) or Chlorophyta (20% of the abundance and 30% of the biomass) algae was analyzed.The phytoplankton of the studied objects are characterized by significant fluctuations in abundance and biomass, regardless of the periods of observation. With excessive anthropogenic impact, inhibition of algocenoses, or their complete degradation, was found.
Soil and biological diversity of the natural environment in the area of mount Shudya-Pendysh: fresh and moist forest growing conditions
Authors:   Perm State University, Buzmakov Sergey A. , Perevedentseva Lydia G. ,   Perm State University, Berdinskikh Svetlana Yu. ,   Perm State University, Botalov Vitalij S. ,   Perm State Agro-Technological University named after Academician D.N. Pryanishnikov, Romanov Aleksandr V. ,   Perm State Agro-Technological University named after Academician D.N. Pryanishnikov, Gatina Evgenia L. ,   Perm State University, Shestakov Igor E. ,   Perm State University, Zaitsev Aleksandr G. ,   Perm State Agro-Technological University named after Academician D.N. Pryanishnikov
Published: December 2023

To preserve the biological diversity of the natural environment in the vicinity of Mount Shudya-Pendysh, the territory deserves the status of specially protected in the region. Studies of forest ecosystems in the border zone of Intact Forest Landscapes (FSC certification) of Perm Krai (Mount Shudya-Pendysh, Krasnovishersky city district) were carried out. The data of 2021 on plantings formed in fresh and moist forest–growing conditions are given - mossy spruce, fern spruce, upland spruce and sour birch (forest type: mossy spruce). 39 species of vascular plants belonging to 37 genera, 25 families and 3 divisions were identified in the studied communities. The number of species is dominated by the families Rosaceae, Poaceae and Ranunculaceae. 58 species of agaricomycetes belonging to 27 genera, 17 families and 4 orders have been recorded. The Russulaceae and Cortinariaceae families predominate in the number of species. Mycorrhizal fungi predominate in trophic association (55.2%). Two species of fungi new to the Perm Region were found in the studied communities: Suillusacidus and Cortinariusbetulinus. A protected lichen – Lobariapulmo-naria, listed in the Red Books of the Russian Federation and Perm Krai, has been noted. The greatest similarity of spe-cies composition was revealed between mossy spruce and fern spruce, both for plants (Jacquard coefficient (J × 100): J = 74.1) and for agaricomycetes (J = 36.4). The most typical soils for the surveyed sites are coarse-humus medium- and heavy-loamy brown soils on the eluvium of bedrock.
Features of oil products content distribution in soils, road dust and snow according to the mega profile in the Rostov region
Authors:   Southern Federal University, Fedorov Yuri A. , Kuznetsov Andrey N. ,   Southern Federal University, Dmitrik Leonid Yu. ,   Southern Federal University, Kuznetsova Elena V. ,   Southern Federal University, Ballinger Olga Yu. ,   Southern Federal University
Published: December 2023

In the last few decades, the enormous scale of crude oil extraction, transportation and processing has caused widespread pollution of soils with crude oil and oil products. Thus, its permanent presence in the environment, and, as a consequence, in soils, is due to natural and anthropogenic origin. The authors have conducted expeditionary research in order to take soil, dust and snow samples along the route "Margaritovo (coast of the Sea of Azov) – Shakhty (Eastern Donbass)". The profile extension is more than 150 km. The oil products mass concentration has been determined in the samples collected. The data set analysis has showed that the oil products content in the soils of the Rostov region should be assessed as varying from acceptable to average. It is concluded that road dust and snow are one of the dominant sources of soil pollution in the Rostov region with oil products.
Rustic bunting Ocyris rusticus in the Vishersky and Norsky strict nature reserves
Authors:   Vishersky nature reserve, Kolbin Vasiliy A. ,   Norsky nature reserve
Published: December 2023

The Information about the state and the dynamics of the number of the local nesting population of the Rustic bunting in the Visherky strict nature reserve of the Perm Region is given. The average population density of Ocyris rusticuson the territory of the strict nature reserve in the nesting period, according to data until 2014, is: 1.5±1.2 pairs/km2in mountain taiga forests, and 1.4±1.1 pairs/km2in valley forests. A comparison is made with the Norsky strict nature reserve of the Amur Region, where the species occurs on migration, and the dynamics of the number of migratory birds is analyzed. The validity of including the species in the Red Books of the Russian Federation and regions is discussed.
The conservation value of the Novogaivinskiy Bor
Authors:   Perm State University, Buzmakov Sergei A. , Gatina Evgenia L. ,   Perm State University, Shestakov Igor E. ,   Perm State University, Abdulmanova Irina F. ,   Perm State University, Voronov Georgi A. ,   Perm State University, Sannikov Pavel Yu. ,   Perm State University, Litvinov Nikolai A. ,   Perm State Humanitarian Pedagogical University, Isakov Denis S. ,   Department of ecology and nature management of the Perm city administration
Published: December 2023

One of the most effective methods of biodiversity conservation, including rare and endangered species of organisms, is the improvement of a protected areas network. This is especially relevant for urban areas, where almost all components of the environment are transformed. In the Short Communications Article described valuable natural objects of the Novogaivinskiy Bor –the area of relatively intact ecosystems on the right bank of Kama river in city Perm. As a result of the direct field survey were identified: valuable soil object, habitats of plant and animal species included to the Red Lists of the Russian Federation and the Perm Region or Appendix to them. Set of studies allows to argued high conservation value of the Novogaivinskiy Bor, where December 2022 protected area was created.
Biotesting of the Iva River and its tributaries by measuring the optical density of Chlorella vulgaris Beijer
Authors:   Perm State University, Kuchin Leonid S. , Nemchaninova Ekaterina A. ,   Perm State University
Published: December 2023

The article givesan assessment of the quality of water in the Iva River (Perm), as well as its tributaries: Bolshaya Iva, Malaya Iva, Talazhanka and Uinka. The quality of water in the rivers was assessed using the method of toxicological control. The method is based on measuring the optical density of a culture of algae chlorella (Chlorella vulgarisBeijer). This biotesting method, due to its higher sensitivity relative to chemical methods of analysis, provides an opportunity for a comprehensive assessment of the content of pollutants in the aquatic environment. As a result of the work carried out, data were obtained on the change in the degree of toxicity of water from the sources of rivers to their mouths. A decrease in the optical density of chlorella and an increase in the degree of toxicity were observed for the waters of the Iva River and all its tributaries, except for the Uinka River. For the Iva River, a decrease in optical densityby 58% relative to the mouth was revealed, which may be associated with an increasingdegree of development of the river banks. The value of the toxicity dilution factor (TDF) for all rivers ranges from 3.95 to 32.43, which corresponds to a change in water quality from moderately toxic to highly toxic. The waters in the Bolshaya Iva River are the least toxic.
Successional dynamics of small mammals in a series of coniferous biogeocenoses of the «Preduralie» protected area
Authors:   Perm State University, Voronov Georgi A. , Naymushina Evgenya E. ,   Perm State University
Published: December 2023

The article deals with the successional dynamics of small mammals in a number of coniferous biogeoceno-ses of the «Preduralie» protected area. Censuses of small mammals were conducted by trapping, trap line and animal trap in 1969, 1980-1984,1986, 1987, 1989, and 1990. On the basis of the executed censuses, the dynamics of number of small mammals in the dark coniferous forest, in clearings on the site of the dark coniferous forest, in the birch forest on the site of the dark coniferous forest, in light coniferous forest and in light coniferous-small-leaved forest was analyzed and made up. In a number of coniferous biogeocenoses 14 species were recorded: 5 insectivores, 8 rodents and 1 predator. Small mammal species reach their maximum abundance in the light coniferous-small-leaved forest stages. The red vole, com-mon woodpecker, common woodpecker and wood mouse are the most abundant in the coniferous biogeocenosis of the «Preduralie» protected area. Weasel, Common Marten, Tundra Vole and Dark Vole are less common. We analysed the dynamics of small mammal occurrence depending on sex and age. Young mammals were rather more common than females, and young males were found slightly more often due to their high activity and dispersal. The biodiversity of small mammals of the study area is at a sufficiently high level.
Essential non-clinical skills and training required by dentists in South Africa
Authors: Tukuru Michelle Olubunmi , Snyman Lorraine , Postma Thomas C , Van der Berg-Cloete Sophy E
Published: December 2023

Dentists possess clinical experience garnered within supervised clinical settings, primarily aimed at diagnosing, treating and preventing oral cavity related diseases.1 Undergraduate dentistry training mostly focuses on the scientific underpinnings of this discipline and building clinical experience, not allowing adequate time for additional coursework.1 According to Haslach et al.2, dentists choose dental careers because they want to help and work with people, as well as desire job and financial security. The current economic downturn has led to a revenue plunge for many independent dental practices, attributed partially to less per capita patient expenditure.3 In response, patients have increasingly embraced preventative measures over more costly procedures, seeking to minimise expenses.4 The global financial crisis further underscores the value of leadership development, given its potential impact on the efficacy of clinic leaders.
Desmoplastic Fibroma: a benign neoplasm mimicking a malignancy
Authors: Merbold Lené , Shaik Shoayeb
Published: December 2023

A four-year-old African male patient presented to our clinic with a two-month history of a fi rm, warm lesion involving the right side of his face. The lesion presented as a bleeding papillary mass in the 85/46 region that extended to the floor of the mouth, causing displacement of the tongue (Figure 1A-B). Upon cone-beam computed tomography (CBCT) examination, an expansile homogenous intermediate density lesion was noted with complete destruction of the bucco-lingual cortical bone. Discernible extensions were identified in the anteroposterior plane from the region of the 84 to the posterior mandible involving the right corpus, developing 46, angle and ramus but spared the condyle and coronoid processes. The lesion extended inferiorly below the epiglottis and showed a reduction of the hypopharynx. Marked bucco-lingual expansion with soft tissue swelling was noted (Figure 2A-D). An incisional biopsy was performed under general anaesthesia, and histological examination rendered a diagnosis of desmoplastic fi broma (DF).
II. Friedrich dönemi'nde saray hayatı: bilimsel ve kültürel faaliyetler
Authors: ÜSTÜN Ergun
Published: December 2023

IX. yüzyılda Müslümanlar tarafından fethedilen Sicilya, yaklaşık iki buçuk asır kadar İslam hâkimiyeti altında kaldı. Müslümanların adadaki siyasi egemenliği bu süreyle sınırlı olsa da, Sicilya’da oluşan İslam medeniyetinin bilimsel, sosyal, kültürel, idari vb. birçok alandaki etkileri yüzyıllar boyunca devam etti. Bu durum Endülüs gibi Sicilya’nın da İslam kültür ve medeniyetinin Batı’ya açılan bir diğer kapısı olmasını sağladı. Sicilya Kralı II. Friedrich’in sahip olduğu entelektüel birikim ve seküler düşünce anlayışının temelinde, yetişmiş olduğu Sicilya’daki kültürün rolü kaçınılmazdır. Başta Arap olmak üzere Grek ve Latin medeniyetlerinin etkisi ile mozaik bir yapıya bürünmüş olan Sicilya’nın bu çok kültürlü ortamında yetişen II. Friedrich, erken yaştan itibaren kozmopolit bir düşün yapısına sahip oldu. Onun skolastik düşünce anlayışının yerine bilim ve mantığı merkeze koyan bir zihniyete sahip olması; saray hayatının bu doğrultuda şekillenmesinde rol oynadı. Sicilya Kralı II. Friedrich tüm hayatı boyunca bilim adamlarına büyük saygı gösterdi ve onları himaye etti. Böylece II. Friedrich döneminde birçok bilim adamı Sicilya’da bilimsel ve kültürel faaliyetlerin gelişmesine önemli katkılarda bulundu. Sicilya’da başta klasik metinler olmak üzere bilim ve felsefe eserlerinin tercüme faaliyetleri sonucu İtalyan Rönesans’ının da temelleri atıldı. Bu çalışmada II. Friedrich döneminde Sicilya’da gerçekleştirilen bilimsel ve kültürel faaliyetlere yer verilmeye çalışılacaktır.
Importancia De La Reutilización De Las Aguas Grises En Los Jardines Productivos Agroforestales Del Territorio Del Sertão Do Araripe
Authors: Coriolano Jose Washington Gomes , Oliveira Lucia Marisy Souza Ribeiro de
Published: December 2023

El presente estudio de investigación realizado en traspatios productivos agroforestales familiares, en el territorio del sertão de Araripe, con actividades productivas familiares, en diferentes agroecosistemas de la región semiárida, tiene como objetivo discutir el uso de aguas grises en el riego complementario de plantas frutales, analizando las prácticas de manejo de los sistemas de reutilización de aguas grises, los riesgos de contaminación biológica y las alternativas de producción de alimentos. En este sentido, el estudio de investigación exploratoria y descriptiva se basa en una revisión bibliográfica, una investigación de campo en un recorrido transversal, en traspatios productivos agroforestales, que aprovechan la aplicación de aguas residuales en la agricultura. De esta forma, se analizó el saneamiento rural, constatando posible contaminación microbiológica del agua, aceptación cultural en el uso y uso del agua de cenizas en el riego por goteo complementario, identificando los puntos críticos que limitan el manejo y reúso de esta agua, en diferentes ambientes rurales y en la producción de plantas frutícolas y forrajeras para la alimentación animal. También se analizó, a través de la seguridad alimentaria familiar y la generación de ingresos, con la producción de alimentos, en la unidad familiar productiva, la importancia del uso de las aguas grises como posible técnica de convivencia con el semiárido y una forma de reducir los impactos ambientales locales, dentro de la agricultura familiar de base ecológica. Como resultado se obtuvo, como resultado, que hubo una buena aceptación del reúso de aguas grises entre los agricultores familiares, sensibilizando sobre la gestión en el reúso de aguas grises, la prevención de la salud, la valorización del trabajo productivo y reproductivo de las mujeres en la agricultura familiar y la posibilidad de una mayor diversificación alimentaria en los traspatios productivos agroforestales, sirviendo de base, por tanto, para la implementación de políticas públicas de saneamiento rural, que beneficien las actividades productivas rurales familiares.
Movilidad Urbana Sostenible: Análisis Y Propuesta De Vías Ciclistas Para La Ciudad De Ronda Alta-RS
Authors: Pedott Georgea Marthina , Neckel Alcindo , Silva Thaísa Leal da
Published: December 2023

Esta investigación tiene como objetivo el proyecto urbano de la ciudad de Ronda Alta - RS, relacionado con el desarrollo urbano, con el objetivo de proporcionar mejoras para los nuevos proyectos de revitalización de la Avenida Presidente Vargas, la principal avenida de la ciudad, con base en las directrices de la Política Nacional de Desarrollo Urbano (PNDU). En este contexto, las ciclovías se han convertido en infraestructura fundamental en el desarrollo de proyectos, pues buscan incentivar el uso de la bicicleta, ayudando a la movilidad urbana y contribuyendo a minimizar la contaminación del aire. Generalmente, la implementación de ciclovías está asociada a la recalificación urbana, mejorando la calidad de vida local, a través de la mejora de equipamientos e infraestructuras. En ese sentido, ante la carencia de este recurso en la ciudad de Ronda Alta - RS, este trabajo tiene como objetivo analizar la Avenida Presidente Vargas y proponer una posible ubicación para la implementación de una ciclovía en esta céntrica avenida que atraviesa la ciudad. Para ello, como metodología, se evaluaron once puntos a lo largo de toda la avenida, con el fin de obtener una mejor comprensión de la misma. Después de recopilar estos datos a través de secciones esquemáticas, se creó un mapa para analizar mejor la demanda de un proyecto de bicicletas y presentar posibles mejoras para la avenida principal. También se plantearon cuestiones de política pública a favor de mejorar el posible sitio de implantación, planteando ideas que permitan mejorar la movilidad de las personas por la avenida, con el fin de que sirva de apoyo a la investigación de un posible futuro proyecto de ciclovía en la ciudad de Ronda Alta.
Paisaje-ciudad: Relaciones afectivas y memoriativas de boa vista por Rua Floriano Peixoto, Roraima
Authors: Oliveira Sued , Pinheiro Ethel , Arteiro Giselle , Avila Rodrigo
Published: December 2023

El artículo busca reflexionar sobre la dinámica socioespacial de la Rua Floriano Peixoto, una de las vías más importantes en la génesis del Plan Maestro de Boa Vista, Roraima, por su mayor densidad y transitabilidad, ubicada en el centro histórico de la ciudad. El objetivo de este trabajo es analizar los rasgos de afecto que realizan los practicantes del espacio urbano de Boa Vista con los lugares valorados desde el punto de vista social y patrimonial, a través de la percepción ambiental y la topofilia. El rescate memorial de la historia de la ciudad es así contextualizado por la construcción de un paisaje afectivo actual, destacando la importancia de la primera calle de Boa Vista en su génesis para el mantenimiento de algunos usos cotidianos y la incorporación de otros nuevos, que revelan la trama urbana. local de vocación. La metodología adoptada para esta investigación es cualitativa, siendo realizada a través de una revisión bibliográfica y análisis de sesgos etnográficos, capaz de evidenciar las relaciones apremiantes y las reminiscencias de los informantes sobre el lugar estudiado. Para ello se utilizaron métodos de abordaje directo como cuestionarios, entrevistas estructuradas y registros fotográficos que, finalmente, permitieron construir la base analítica de este artículo. Los resultados muestran una relación espacial única entre el habitante de la ciudad y la memoria del lugar, además de dar sentido y valor al conjunto arquitectónico-urbano.
Plantas Alimenticias No Convencionales (PANC): alternativa para los huertos urbanos y metas de la Agenda 2030
Authors: Silva Raphaela Dias da Rocha , Paulino Amanda dos Santos , Feitoza Marilua de Carvalho , Souza Angélica Oliveira de , Nascimento Ana Paula Branco do
Published: December 2023

En 2015, la ONU propuso nuevos Objetivos de Desarrollo Sostenible (ODS) diseñando la Agenda 2030. Entre sus 169 objetivos destacan los relacionados con el hambre: agricultura sostenible y vulnerabilidad alimentaria. Los huertos urbanos se pueden desarrollar en espacios públicos que contribuyen a las metas de los ODS, donde se pueden encontrar plantas alimenticias no convencionales (PANC). En este sentido, este trabajo tuvo como objetivo analizar el cultivo de PANC en un huerto urbano y sus aportes a los ODS. El sitio de estudio fue el Colectivo Horta das Flores, ubicado en la Praça Alfredo Di Cunto, en la ciudad de São Paulo, SP. En la primera etapa se realizó la preparación de camas, limpieza y fertilización del suelo. En la segunda etapa, las obras recibieron PANC no espontáneo y posteriormente el PANC espontáneo identificado en el espacio público. Se monitoreó el desarrollo de 18 especies de plantas alimenticias insertadas en cinco camas. El desarrollo de la especie fue monitoreado durante seis meses, resultando en seis especies PANC no espontáneas y nueve especies PANC espontáneas que se desempeñaron mejor. Paralelamente al cultivo, se analizaron las 169 metas de los ODS que pueden recibir aportes de espacios como la huerta estudiada. Se concluye que el cultivo de PANC en Horta das Flores y la infraestructura de este jardín urbano, favorece las metas del ODS 2 (Hambre Cero y Agricultura Sostenible), ODS 11 (Ciudad y Comunidades Sostenibles) y ODS 15 (Vida Terrestre), contribuyendo a la Agenda 2030.
Experiencias estéticas y educación ambiental: en la busca por una sociedad menos consumista
Authors: Zanon Breno Henrique Bianco , Iared Valéria Ghisloti
Published: December 2023

Ante el recrudecimiento de la crisis ambiental, afectada por la sociedad de consumo, se requieren acciones educativas junto a la comunidad para afirmar una actitud de concientización basada en laproblematización de nuestra realidade nun proceso de educación permanente denominado educación ambiental. Una posibilidad es trabajar el sentido de pertenencia al medio natural  através de las llamadas experiencias estéticas, ya que estas revelan formas de construir valores éticos y estéticos, que pueden incentivar posiciones políticas a favor de la conservación de la biodiversidad y sociedades más sustentables. El objetivo de este trabajo es presentar un ensayo teórico sobre las experiencias estéticas como herramienta frente al patrón de consumo desenfrenado de la sociedad actual. Para ello, realizamos una revisión bibliográfica sobre la sociedad de consumo/consumismo; experiencias estéticas y experiencias estéticas frente al consumismo. Como resultado, defendemos que la educación estética es fundamental en el aprendizaje frente al consumismo, pues además de cuestionar la racionalización de la realidad, que entiende la naturaleza como propiedad y sumisa del ser humano, desde la estética podemos revisar nuestros valores y relaciones.
Universalización y sostenibilidad de la energía eléctrica en Brasil: un análisis del cumplimiento del ODS 7
Authors: Martins Adriana Mara Aleixo , Souza Gabriel Freitas , Fellows Maria Fernanda Machado , Santos Steffany Martins dos , Lomardo Louise Land Bittencourt
Published: December 2023

Este trabajo pretende profundizar en el debate en torno a la publicación de los altos índices de Brasil en relación con las metas establecidas en el 7º Objetivo de Desarrollo Sostenible (ODS) de la Organización de las Naciones Unidas, que pretende garantizar el acceso universal a servicios energéticos fiables, sostenibles, modernos y asequibles.  Para abordar esta cuestión, se realizó una investigación basada en el análisis bibliográfico y fuentes oficiales de organismos gubernamentales, que presentaron datos relevantes sobre la distribución de energía eléctrica en el territorio brasileño. El cuestionamiento propuesto en este estudio es de suma importancia en el contexto actual, ya que la clasificación del cumplimiento del ODS 7 puede resultar en la falta de incentivos gubernamentales e internacionales para mejorar la generación y distribución de energía eléctrica en Brasil. A través de una evaluación crítica de los indicadores y datos disponibles, se busca entender si el país realmente ha alcanzado la universalización y la sostenibilidad en el suministro de energía eléctrica, o si persisten desigualdades y desafíos que deben ser abordados. Los resultados obtenidos en este estudio proporcionan un análisis de la realidad energética de Brasil, permitiendo la identificación de brechas y aspectos que aún necesitan atención para el cumplimiento efectivo del ODS 7. Además, contribuye al debate sobre la importancia de establecer metas realistas e indicadores adecuados para monitorear el progreso en el área energética, con el fin de impulsar las acciones e inversiones necesarias para mejorar la generación y distribución de electricidad, promoviendo el desarrollo sostenible e inclusivo en el país.
La percepción de los graduados de educación superior sobre el cambio climático
Authors: Rodrigues Pamela , Verçoza Fabio de Castro , Finotti Ricardo
Published: December 2023

El cambio climático es motivo de gran preocupación y se busca intensamente soluciones y formas de contener sus efectos. Por lo tanto, es necesaria la unidad entre el Estado y la sociedad para llevar a cabo acciones concretas de mitigación, para lo cual la comunidad debe estar sensibilizada y tener conciencia ambiental. Con este objetivo, este trabajo tuvo como propósito investigar y analizar la percepción y el compromiso de los estudiantes universitarios con respecto al cambio climático. Para ello, se realizó una investigación exploratoria con estudiantes de diferentes áreas de conocimiento de la Universidad Estácio de Sá. Las preguntas analizaron el conocimiento climático, las actividades y la percepción sobre el cambio climático, así como la percepción de los individuos sobre la educación ambiental que han recibido. En total, se obtuvieron 69 respuestas de estudiantes de 15 cursos diferentes, predominando el curso de Ciencias Biológicas. El análisis de las respuestas permitió observar cómo estos estudiantes se relacionan con el medio ambiente; en su mayoría, creen que el clima está cambiando y se mostraron dispuestos a participar en acciones de mitigación y discusiones sobre el cambio climático. Sin embargo, se percibe superficialidad y falta de responsabilidad en la forma de expresarse de algunos estudiantes, lo cual se debe a la desinformación y la falta de una educación ambiental que sea crítica y emancipadora.