bluuebunny/crossref_metadata_2025 huggingface dataset:
Simultaneous Quantification of Acid chlorogenic, Acid caffeic and Rutin in Herba Siegesbeckiae orientalis by HLPC Method
Authors: Thi Van Anh Tran , Quoc Tuan Pham , Van Khanh Nguyen , Viet Hung Dao , Thanh Hai Nguyen , Van Thao Tran , Thi Hong Nhung Nguyen , Thi Xuan Thinh Ngo , Thanh Hoa Ha , Xuan Truong Nguyen
Published: June 2023

Herba Siegesbeckiae is a medicinal material derived from the aerial part of Siegesbeckia orientalis, which is used to treat various types of pain such as back, knees, bones, joints, and numbness of limbs. This plant contains several phenolic compounds, including chlorogenic acid (1), caffeic acid (2), and rutin (3). They were chosen as marker compounds to develop a quantification method. In this study, a high-performance liquid chromatography (HPLC) method with a DAD detector was used to simultaneously quantify these three compounds (1-3). The Agilent C18 column (250 x 4.6 mm; 5 µm) was used for the separation of the analytes, and the mobile phase consisted of MeCN - 0.1% phosphoric acid in water with gradient elution. The flow rate was 1.0 ml/min, and the detection wavelength was 320 nm for 1 and 2, and 360 nm for 3. The injection volume was 20 µl. The method was validated according to the guidelines of ICH and AOAC on system suitability, specificity, linearity, precision, and accuracy. The established quantification method was applied to determine the content of compounds 1, 2, and 3 in samples of Herba Siegesbeckiae, which were found to be 0.09-0.82 mg/g, 0.02-0.21 mg/g, 0.07-0.52 mg/g, respectively. This quantification method can be used to assess the quality of Herba Siegesbeckiae and related products.
Cultivating the Garden of Eden
Authors:   Cognitive Science Program Informatics Department, Luddy School of Informatics, Computing, and Engineering, Indiana University, Beer Randall D.
Published: June 2023

Garden of Eden (GOE) states in cellular automata are grid configurations that have no precursors; that is, they can only occur as initial conditions. Finding individual configurations that minimize or maximize some criterion of interest (e.g., grid size, density, etc.) has been a popular sport in recreational mathematics, but systematic studies of the set of GOEs for a cellular automaton have been rare. This paper presents the current results of an ongoing computational study of GOE configurations in Conway’s Game of Life (GoL) cellular automaton. Specifically, we describe the current status of a map of the layout of GOEs and non-GOEs in 1-density/size space, characterize how the density-dependent structure of the number of precursors varies with increasing grid size as we approach the point where GOEs begin to occur, provide a catalog of all known GOE configurations up to a grid size of 11×11, and initiate a study of the structure of the network of constraints that characterize GOE versus non-GOE configurations.
The Domino Problem of the Hyperbolic Plane Is Undecidable: New Proof
Authors:   Laboratoire de Génie Informatique, de Production et de Maintenance, Université de Lorraine, Bâtiment A de l’UFR MIM, Margenstern Maurice
Published: June 2023

The present paper revisits the proof given in a paper of the author published in 2008 proving that the general tiling problem of the hyperbolic plane is algorithmically unsolvable by proving a slightly stronger version using only a regular polygon as the basic shape of the tiles. The problem was raised by a paper of Raphael Robinson in 1971, in his famous simplified proof that the general tiling problem is algorithmically unsolvable for the Euclidean plane, initially proved by Robert Berger in 1966. The present construction improves that of the 2008 paper. It also very strongly reduces the number of prototiles.
Spatial Scale Effects in COVID-19 Spread Models
Authors:   Programa de Pós-Graduação em Modelagam Matemática e Computacional, Centro Federal de Educação Tecnológica de Minas Gerais - CEFET-MG, Ave. Amazonas, 7675 - Nova Gameleira, Belo Horizonte, Minas Gerais, Brazil, Gonzaga Marlon N. , de Oliveira Marcelo M. ,   Programa de Pós-Graduação em Modelagam Matemática e Computacional, Laboratório de Sistemas Complexos e Sistemas Dinâmicos, Ave. Amazonas, 7675 - Nova Gameleira, Belo Horizonte, Minas Gerais, Brazil, Faria Allbens A. P. ,   Programa de Pós-Graduação em Modelagam Matemática e Computacional, Laboratório de Sistemas Complexos e Sistemas Dinâmicos, Ave. Amazonas, 7675 - Nova Gameleira, Belo Horizonte, Minas Gerais, Brazil
Published: June 2023

The COVID-19 pandemic has highlighted epidemiological models as important forecasting methods and planning strategies, with studies conducted using a wide variety of analytical and computational techniques. Knowing that more pandemic episodes may occur, it is essential that epidemiological modeling present increasingly credible results. From this perspective, this paper aims to highlight the influence of spatial distribution on an epidemic dynamic, using agent-based modeling. To calibrate the behavioral profile of the population, data was taken on mobility, population pyramid, individual behavior and government policies of a real population during the pandemic. Two different initial spatial distribution scenarios are tested and the robustness of the infection is analyzed. Totalistic rules were designed to assess the influence of infected individuals in the vicinity of an agent, a factor that must not be ignored in modeling respiratory diseases with viruses capable of spreading by aerosols, such as SARS-CoV-2. It is shown that the scenario with nonuniform distribution of agents is much more robust, generating an epidemic process even when uniform distribution, for the same parameters, did not propagate the infection. Our results also suggest that herd immunity is attained in different levels of recovered individuals, showing higher values in denser regions. In conclusion, it is reinforced that the nonuniform feature of the spatial distribution of individuals plays a key role in the infection dynamics and should receive more attention when building epidemiological models.
Effect of herbicides on the emergence of Sitophilus zeamais (Coleoptera: Curculionidae) in transgenic Bt maize
Authors: Pereira Sánchez Luiza , Willian Rocha de Souza Michael , Maria Teixeira Fialho Cíntia , Alves Ferreira Evander , Aparecido dos Santos Edson , Von dos Santos Veloso Ronnie , Alvarenga Soares Marcus
Published: June 2023

etically modified organisms (GMOs) are widespread in Brazil, especially those related to resistance to herbicides and insects. This work aimed to evaluate herbicides' effect on the emergence of maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) in different maize genotypes. The experimental design was a 3 × 5 factorial experiment in a randomized complete block design with four replications. Genotypes of transgenic maize, Herculex® (TC1507) and PowerCore® (MON89034 × TC1507 × NK603) and an Isohybrid (non-transgenic) were used. The herbicides were Atrazine, Atrazine + Nicosulfuron, Ammonium Glufosinate, Nicosulfuron and a control treatment without herbicide application. The emergence of S. zeamais was observed in grains from each plot for 100 days, with 300 grams of maize grains. The Isohybrid was the most attractive to S. zeamais when no herbicide was applied. The application of Ammonium Glufosinate increased S. zeamais preference for Herculex® and Nicosulfuron for PowerCore®. The insertion of an exogenous gene and the application of herbicides in maize plants can alter components of the insect-plant interaction, changing the attractiveness to S. zeamais.
ANALISIS PENGARUH POLA ALIRAN MULTIFASA MINYAK DAN GAS TERHADAP PRESSURE LOSS PADA PIPA VERTIKAL DENGAN ANSYS FLUENT
Authors: Saputra Novan Ade , Nugroho Adhimas Daru , Maharsi Dara Ayuda
Published: June 2023

Penelitian yang dilakukan adalah mengetahui pengaruh pola aliran terhadap pressure loss yang terjadi pada pipa vertikal dan mengetahui pengaruh viskositas minyak terhadap pressure loss dan pola aliran pada GOR rendah dengan membuat visualisasi aliran fluida di dalam pipa vertikal menggunakan software Ansys Fluent. Prosedur penelitian diawali dengan pembuatan geometri pipa vertikal sepanjang 100 in (2.54 m) dan ber-diamater 6.5 in dengan inlet berada di bagian bawah dan outlet berada di bagian atas. Sensitivitas yang digunakan untuk mengetahui perbedaan pola aliran dan pressure loss yaitu dengan membuat variasi kecepatan dan viskositas fluida minyak dan gas ketika mengalir di dalam pipa vertikal. Dibuat variasi kecepatan minyak dan gas dari kondisi 1 sampai 16. Dari berbagai kondisi tersebut dihasilkan pola aliran Bubble Flow, Slug Flow, Churn Flow, dan Annular Flow. Kemudian dibuat sensitivitas pada viskositas minyak untuk mengetahui pola aliran dan pressure loss yang terjadi di dalam pipa vertikal dengan GOR 3.7362 SCF/STB. Viskositas minyak yang digunakan yaitu 10 cP, 100 cP, 1000 cP, 2000 cP, dan 3000 cP. Dari kelima kondisi tersebut didapatkan pola aliran didalam pipa vertikal yaitu Slug Flow. Kemudian pada penelitian ini akan ditarik data static pressure pada saat waktu 3 detik fluida mengalir di dalam pipa dari setiap kondisi untuk di bandingkan. Berdasarkan hasil simulasi pola aliran dan penarikan data static pressure, terjadi pressure loss yang tinggi di awal ketika fluida gas dominan memasuki pipa vertikal dan fluida gas yang masuk ke dalam pipa vertikal akan menunjukkan kurva static pressure yang konstan.
Fundamentals of design of jet-drop optical systems for three-coordinate measurements of electric, magnetic and gravitational field strengths by the pendant drop method. Part 1
Authors:   Lavochkin Association, Leun E. V.
Published: June 2023

The article discusses the principle of operation and the main components of jet-drop optical measuring systems (JDOMS) based on the pendant drop method for monitoring electric field strength (EFS), magnetic field (MFS) and gravitational field (GFS). To make a pendant drop sensitive to electric or magnetic fields, it is proposed to charge it electrostatically or to create it from a magnetic fluid, and its mass allows you to feel changes in the gravitational field. The use of magnetic fluids as the basis of a pendant drop is the most multifunctional for measurements of EFS, MFS and GFS. The implementation of the zero measurement method using a pendant drop as a comparison device, a null organ that perceives the difference in the effects of the measured and reference field(s) at the level of quasi-zero three-coordinate displacements, is considered. They are measured by high-precision optical measurement methods. Different variants of modern optical measurement systems are analyzed.
Theoretical studies of the steering hydraulic system of construction and road machines with flow amplifiers
Authors:   Siberian State Automobile and Highway University, Zhdanov A. V.
Published: June 2023

The article presents the results of theoretical studies of the functioning of flow amplifiers, the purpose of which is to increase the useful power of the hydraulic steering systems of heavy construction and road machines, which is especially important when upgrading existing equipment and designing a new one. Flow amplifiers allow to increase the supply of working fluid to the hydraulic cylinders for turning a multiple of the dosed volume by the dosing pump. A distinctive feature of the study is the consideration of two flow amplifiers of throttling and volumetric types, working in pairs. The design, the principle of operation are described, the main calculated dependencies are presented, on the basis of which mathematical modeling was carried out. To evaluate the qualitative and quantitative characteristics of the amplifiers, graphs of transient processes in the steering hydraulic system, as well as the static characteristics of the flow amplifiers, were obtained. The analysis of the obtained dependencies showed acceptable accuracy and quality of the hydraulic system. The results obtained can be used in the synthesis of such systems.
Improving the accuracy of processing deep holes by Electrical Discharge Machining with a rotating tubular electrode
Authors:   Omsk State Technical University, Popov A. Yu. , Prokofev V. A. ,   Omsk State Technical University
Published: June 2023

The article considers the factors affecting the accuracy of Electrical Discharge Machining. The process of formation of conglomerates resulting from processing is mainly investigated. Based on the literature analysis, the theoretical and real scheme of Electrical Discharge Machining is compared. As a result of the experiments carried out, it is revealed that in the process of deep holes, the electrode deviates from its axis due to the destabilization of the tool due to the non–rigidity of the electrode and the sticking of debris formed in the processing zone. The deviation of the electrode from the axis of rotation leads to uneven pressure from the liquid washing out the debris, which leads to uneven wear on the side of the electrode. During the study, samples of electroerosive debris are collected and studied. A direct relationship between the processing depth and the deviation value is revealed: the greater the processing depth, the greater the deviation value, which leads to distortion of the shape of the hole section and the formation of a cone instead of a cylinder. To improve the accuracy of processing deep holes, it is necessary to minimize the deviation of the electrode from the axis of rotation and protect the side surface of the electrode from the effects of current.
Ecosystem controlling as a solution to complex task of optimizing the technological process of industrial production
Authors:   Joint Company «Research and Production Corporation «Space Monitoring Systems, Information & Control and Electromechanical», Loskutov I. A. , Iskandarova V. G. ,   MMZ Avangard
Published: June 2023

The article is devoted to the study of ecosystem controlling and divided into three structural sections. The study is of an overview nature, aimed at popularizing ecosystem approaches in the domestic industry. The main methods of scientific research are systematization and analysis. The introduction provides evidence of the need to search for new solutions to optimize and improve modern domestic industry. The first section analyzes definitions related to the ecosystem. It is considered from the classical (biological) point of view and from the point of view of application in industry. The evidence base of the justification of this approach is given. The second section is devoted to the problems present in industrial ecosystems. The list of the most significant features caused by staff misunderstanding of new approaches is made and the unjustifiability of outdated methods of production organization used everywhere is argued. At the same time, the section focuses on the importance of the manager who is responsible for the functioning of departments and specifies the characteristics required for him. The third section shows the importance of ecosystem controlling as a way to solve the described problems. As evidence, it is divided into two obvious components — technical and human. The direction of the Internet of Things as an integral part of the industrial ecosystem is noted. As a solution to the human component, an example of implementation for little-changing systems is given and recommendations are given for systems of a different nature. In conclusion, the supporting facts of the correctness of the conclusions are given.
Operation stability of sea vessels onboard electrical power system when changing settings of diesel generator governor
Authors:   Kerch State Maritime Technological University, Savenko A. E. , Savenko P. S. ,   Kerch State Maritime Technological University
Published: June 2023

The article deals with the issue of ensuring the sustainable operation of ship electrical power systems. Experimental oscillograms of power exchange and in-phase oscillations during parallel operation of diesel generator units are presented. The results of mathematical modeling allow us to conclude that it is necessary to limit the change in the values and ratios of the transmission coefficients of the governor. It is proposed to limit the change in the transmission coefficients of the governor when eliminating power exchange oscillations.
Losses of electrical energy in electrical networks
Authors:   Omsk State Technical University, Kiselyov G. Yu. , Trotsenko V. M. ,   Omsk State Technical University, Petrova E. V. ,   Omsk State Technical University, Krivolapov V. A. ,   Omsk State Technical University, Girshin S. S. ,   Omsk State Technical University, Bubenchikov A. A. ,   Omsk State Technical University, Goryunov V. N. ,   Omsk State Technical University
Published: June 2023

This article discusses the relevance of reducing electrical energy losses. The actual values and plans for reducing electric energy losses in PJSC «Rosseti» and the main branches of PJSC «Rosseti Siberia» are given. The existing standards of losses in electrical networks of different voltage levels are presented. Possible ways of reducing electricity losses to achieve the targets set by the «Energy Strategy of the Russian Federation for the period up to 2035» are considered.
The method of non-destructive measurement of power thyristor surge current
Authors:   Emperor Alexander I St. Petersburg State Transport University, Anisimov G. N. , Kim K. K. ,   Emperor Alexander I St. Petersburg State Transport University, Tkachuk A. A. ,   Emperor Alexander I St. Petersburg State Transport University, Kuzmenko A. Yu. ,   Omsk State Transport University
Published: June 2023

The article proposes a new method for the non-destructive measurement of one of the most important maximum permissible parameters of surge current power thyristors. The method is based on continuous control at each moment of time of the dynamic capacitance, the changing in the nature of the time dependence of which predicts the destruction of the semiconductor structure.
THE ROLE OF SULFATE-REDUCING BACTERIA IN BIOMONITORING OF RIVER ECOSYSTEMS
Authors:   Institute of Water and Ecology Problems FEB RAS, 56 Dikopoltsev St., Khabarovsk, 680 000, Russia, Andreeva D.V. , Kondratyeva L.M. ,   Institute of Water and Ecology Problems FEB RAS, 56 Dikopoltsev St., Khabarovsk, 680 000, Russia
Published: June 2023

Biomonitoring is one of the important stages in the consistent study of the sustainable development of aquatic ecosystems and their biological diversity. Against the background of the global impact on the hydrosphere, there is a need to select priority indicators and methods for determining the environmental risk in case of pollution of river ecosystems. Newly arriving substances are involved in complex biogeochemical processes in the water column, migrate as part of suspensions, or settle to the bottom. During the freezing period, a special place is occupied by cryogenic biochemical processes occurring in ice. Microbiological studies of the Amur River near the city of Khabarovsk showed that the water quality diff ered signifi cantly in winter. In the under-ice water and ice sampled off the coast, a diff erent composition of organic matter (OM) has been recorded for many years. After the fl oods (2013, 2019), a high number of sulfate- reducing bacteria was recorded in individual ice layers, which aff ect the dynamics of the transformation of natural and anthropogenic substances. This is due to the fact that in the area of Khabarovsk, during the period of ice cover formation, humifi ed OM spreads along the left bank, coming from the Zeya and Bureya reservoirs during technological discharges of water and from the fl oodplain, and along the right bank – waters contaminated with OM, mainly anthropogenic character. Long-term studies of the potential activity of sulfate- reducing bacteria in the Amur and its channels (Amurskaya, Pemzenskaya) make it possible to predict the formation of hydrogen sulfi de zones and the likelihood of mercury methylation over a wide temperature range. The indicator of resistance of cryomicrobial communities to high concentrations of mercury can be used for a retrospective assessment of the environmental risk of mercury pollution of rivers during the freeze-up period.
BIODIVERSITY OF CADDISFLES (INSECTA, TRICHOPTERA) THE JEWISH AUTONOMOUS REGION
Authors:   1Federal Scientifi c Center of the East Asia Terrestrial Biodiversity, FEB RAS, 159 Stoletiya Vladivostoka Avenue, Vladivostok, 690 022, Russia, Vshivkova T.S. ,   UNESCO International Chair “Marine Ecology”, Institute of the World Ocean, Far Eastern Federal University, Russian Island, 10 Ajax st, Vladivostok, 690 922, Russia,   The International Institute of Environment and Tourism, Vladivostok State University, 41 Gogol st., Vladivostok, 690 014, Russia
Published: June 2023

A review of the study of Trichoptera in the Jewish Autonomous Region (JAO) from 1962 to the present is given. It is noted that a signifi cant increase in the list of species occurred in the early 2000s as a result of expeditions of the Federal Scientifi c Center for Biodiversity of the Far Eastern Branch of the Russian Academy of Sciences in the JAO, and during entomological studies in the Bastak State Nature Reserve. From 2018 to the present, as part of the annual comprehensive studies of the freshwater biota of the Middle Amur River basin, knowledge of the fauna of the caddis fl ies of the JAO has signifi cantly expanded. By now the list of caddis fl ies in the region has amounted 225 species from 59 genera and 21 families. The paper provides a systematic list of species and a brief analysis of the structure of the trichopterofauna of the JAO. Fourteen species of caddisfl ies are indicated for the fi rst time for the JAO region, three of them are probably new to science; one species, Anabolia appendix, was fi rst discovered on the territory of the continental part of Russia (previously it was known from Sakhalin Island and from China).
QUANTITATIVE INDICES OF ZOOBENTHOS OF THE TIGROVAYA RIVER (PARTIZANSKY DISTRICT, PRIMORYE TERRITORY)
Authors:   Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia, Gorovaya E.A.
Published: June 2023

Based on the results of the annual series of collections, the process of changes in the quantitative characteristics of benthos in the section of the right–bank tributary of the Partizanskaya River –Tigrovaya River (Partizansky municipal district of Primorsky Krai) is considered. The main trends of community formation are revealed. The results obtained were compared with the literature data on the left-bank tributary of the Partizanskaya River – the “model” Frolovka River.
PLANKTON AND BENTHIC COMMUNITIES OF SALINE RIVERS IN THE BASIN OF THE HYPERGALEEN ELTON LAKE (RUSSIA): MULTIVARIATE ANALYSIS OF COUPLED STRUCTURES AND STATISTICAL RELATIONSHIPS
Authors:   Institute of Ecology of the Volga River Basin of the Russian Academy of Science – Branch of the Federal State Budgetary Institution of Science Samara Research Scientifi c Center of Russian Academy of Science, 10 Komzina st., Togliatti, 445003, Russia, Zinchenko Т.D. , Shitikov V.K. ,   Institute of Ecology of the Volga River Basin of the Russian Academy of Science – Branch of the Federal State Budgetary Institution of Science Samara Research Scientifi c Center of Russian Academy of Science, 10 Komzina st., Togliatti, 445003, Russia, Abrosimova E.V. ,   Institute of Ecology of the Volga River Basin of the Russian Academy of Science – Branch of the Federal State Budgetary Institution of Science Samara Research Scientifi c Center of Russian Academy of Science, 10 Komzina st., Togliatti, 445003, Russia
Published: June 2023

Prielton region (the Caspian lowland area, the basin of the hyperhaline Lake Elton) based on the study of plankton and benthic communities in August 2013 and 2018. The results of hydrobiological samples taken at 15 stations of fi ve saline rivers were used for multivariate statistical analysis. Using statistical models of species distribution, it has been established that heterogeneity of planktonic and bottom communities diversity is caused by biotopic diff erences and salinity level of water environment. It is shown that for highly saline systems of arid regions a clear separation of life forms of planktonic and bottom communities are not obvious.
FEEDING OF THE FISH OF BLAGODATNOE LAKE (ITURUP Island, KURIL ISLANDS) IN SUMMER
Authors:   Sakhalin branch of Russian Federal Research Institute of Fisheries and Oceanography (SakhNIRO), 196 Komsomolskaja St., Yuzhno- Sakhalinsk, 693023, Russia, Labay V.S. , Zavarzin D.S. ,   Sakhalin branch of Russian Federal Research Institute of Fisheries and Oceanography (SakhNIRO), 196 Komsomolskaja St., Yuzhno- Sakhalinsk, 693023, Russia, Ivshina E.R. ,   Sakhalin branch of Russian Federal Research Institute of Fisheries and Oceanography (SakhNIRO), 196 Komsomolskaja St., Yuzhno- Sakhalinsk, 693023, Russia, Litvinenko A.V. ,   Sakhalin state university, 33 Kommunistichesky Avenue, Yuzhno- Sakhalinsk 693000
Published: June 2023

The feeding of mass fi sh species is described according to the data of ichthyological samples in June- August 2001 from Blagodatnoye Lake (Iturup Island, Kuril Islands):whitebaits of Oncorhynchus keta, Hypomesus nipponensis, Pungitius spp., Gasterosteus nipponicus, Salvelinus malma curilus, S. leucomaenis, Cottus amblystomopsis, Gymnogobius urotaenia and Tridentiger brevispinis. Whitebaits of Oncorhynchus keta, Pungitius spp. and Gasterosteus nipponicus formed the basis of catches in terms of abundance and biomass in the coastal zone of the lake. Hypomesus nipponensis is typical of shallow lake waters and has been constantly observed in the coastal area. Four ecological groups of fi sh are distinguished by the type of food. The fi rst group includes whitebaits of Oncorhynchus keta only, which are the most separated from other species in terms of the ecological spectrum of feeding. The basis of the diet of whitebaits of chum salmon (85 %) is non-aquatic insects consumed from the surface of the water. Salvelinus malma curilus and Hypomesus nipponensis exerted the greatest competitive pressure on juvenile salmon, 11 and 10 % of their diet also consisted of extra- aquatic insects, respectively. Hypomesus nipponensis is a plankto- benthophage and belongs to the second group. The basis of the ecological food spectrum of this species was formed by zooplankton (43 %) and zoobenthos (30 %). A signifi cant contribution was also characterized by fi sh eggs (17 %). The third group includes the Japanese three- spined sticklebacks, the main food of which is fi sh eggs (59 %) and zoobenthos (34 %). All other fi sh species are included in a single group of predominant benthophages. The contribution of zoobenthos in the ecological spectrum of nutrition of these fi sh varied from 57.4 % in Gymnogobius urotaenia to 100 % in Tridentiger brevispinis.
TO THE QUESTION OF INFLUENCE OF ABIOTIC AND ANTHROPOGENIC FACTORS ON THE DAILY VERTICAL MIGRATION ACTIVITY ON THE AQUATIC ORGANISMS OF LAKE BAIKAL
Authors:   Irkutsk State University,1 Karl Marx St., Irkutsk, 664003, Russia, Lavnikova A.V. , Biritskaya S.A. , Bukhaeva L.B. , Golubets D.I. , Ermolaeva Ya.K. , Kulbachnaya N.A. , Maslennikova M.A. , Pushnitsa V.A. , Shchukova E.A. , Karnaukhov D. Yu. , Silow E.A.
Published: June 2023

Daily vertical migration (DVM) of aquatic organisms is a widespread phenomenon in both small and large water bodies. It is observed, including in the deepest lake in the world – Baikal. Unique Baikal amphipods and lower crustaceans (Cladocera, Copepoda, Ostracoda) are the main representatives of the nocturnal migratory complex. As part of this study, it was found that artifi cial lighting and changes in the lake water level can aff ect the nighttime migratory activity of aquatic organisms.
FAUNA AND DISTRIBUTION OF THE PODONOMINAE, DIAMESINAE, PRODIAMESINAE, ORTHOCLADIINAE AND CHIRONOMINAE (DIPTERA, CHIRONOMIDAE) OF THE RUSSIAN FAR EAST AND BORDERING TERRITORY
Authors:   Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia, Makarchenko E.A. , Orel O.V. ,   Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
Published: June 2023

An updated chironomid list of 5 subfamilies and their distribution in the Russian Far East and Sakha (Yakutia) are given and discussed. Nine hundred thirty one species in 141 genera are recorded: Podonominae – 8 species (4 genera), Diamesinae – 60 species (13 genera), Prodiamesinae – 11 species (4 genera), Orthocladiinae – 496 speecies (68 genera) and Chironominae – 238 species (53 genera). During the period of investigation 5 genera, 1 subgenus and 223 species in 68 genera have been described as new to science. The highest number of species (555) was found in the Amur River basin, the lowest (51) in Wrangel Island. Most recorded species (68 %) are Palaearctic in distribution, 32 % are Holarctic.
ZOOPLANKTON CURRENT STATE AND TROPHIC RELATIONSHIPS IN THE POSOLSKY SOR OF BAIKAL LAKE IN 2022
Authors:   Baikal branch of «Russian Federal Research Institute of Fisheries and Oceanography» (BaikalNIRO), 4 b Khakhalov St., Ulan- Ude, 670034, Russia, Neronova S.Y. , Sheveleva N.G. ,   Limnological Institute of the Siberian Branch of Russian Academy of Sciences, 3 Ulan- Batorskaya St., Irkutsk, 664033, Russia, Misharina E.A. ,   Irkutsk State University,1 Karl Marx St., Irkutsk, 664003, Russia
Published: June 2023

The present study provides the original results of research of zooplankton in the most typical shallow area of Lake Baikal (Posolsky Sor) in 2022. Changes in species composition, quantitative indicators of development and the structure of zooplankton are analyzed. Since this area of Baikal is considered a feeding ground for juvenile omul, special attention is paid to assessing the productivity of zooplankton as a food supply for fi sh.
MATERIALS ON THE FAUNA OF EPHEMEROPTERA, PLECOPTERA AND TRICHOPTERA OF THE KRONOTSKY NATURE RESERVE AND OTHER REGIONS OF KAMCHATKA
Authors:   Sikhote- Alin State Nature Biosphere Reserve named after K.G. Abramov, Terney, Russia. E-mail: potikha@mail.ru 2Kronotsky State Nature Biosphere Reserve, Yelizovo, Russia, Potikha E.V. , Lobkova L.E. ,   Federal Scientifi c Center of the East Asia Terrestrial Biodiversity, FEB RAS, 159 Stoletiya Vladivostoka Avenue, Vladivostok, 690022, Russia, Vshivkova T.S. ,   Federal Scientifi c Center of the East Asia Terrestrial Biodiversity, FEB RAS, 159 Stoletiya Vladivostoka Avenue, Vladivostok, 690022, Russia,   Institute of the World Ocean, FEFU, Vladivostok, Russia,   International Institute of Environment and Tourism, VVSU, Vladivostok, Russia
Published: June 2023

As a result of collection in 2014–2021, additional information was obtained on the fauna and distribution of three orders of amphibiotic insects Ephemeroptera, Plecoptera and Trichoptera of the Kronotsky State Natural Biosphere Reserve and other regions of the Kamchatka Peninsula. The general list of the three orders the studied territory includes 56 species: 8 species of mayfl ies, 17 – stonefl ies, and 31 – caddisfl ies. For the territory of Kronotsky Nature Reserve are noted 50 species: 8 – mayfl ies, 11 – stonefl ies, and 31 – caddisfl ies; the presence of 48 previously known species is confi rmed. Stonefl y Capnia nigra (Pictet, 1833) and caddisfl y Hydropsyche kozhantschikovi are fi rst fi nds for the reserve. Plecopterans Plumiperla diversa (Frison, 1935) is discovered for Geyser Valley streams for the fi rst time, and Isocapnia orientalis Zhiltzova, 1975 is a new fi nding for the Kamchatka Peninsula.
NEW DATA ON RELATIONSHIPS BETWEEN FISHES (CYPRINIDAE) AND MOLLUSKS (BIVALVIA, MARGARITIFERIDAE, UNIONIDAE) IN THE RUSSIAN FAR EAST
Authors:   Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia, Sayenko E.M. , Palatov D.M. ,   A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Moscow, Russia
Published: June 2023

The fi ndings of bitterling (Rhodeus sericeus) eggs and larvae in the gill chambers of freshwater bivalve mollusks from Razdolnaya River basin are discussed. Bitterling eggs and larvae were registered in Margaritifera dahurica pearl mussels from Komarovka river, a tributary of Razdolnaya River, on the territory of the Ussuriysky Nature Reserve. Bitterling larvae at diff erent stages of development were also found in Nodularia douglasiae mussels from Razdolnaya River.
BOTTOM INVERTEBRATES IN STREAMS OF THE TUGUR PENINSULA (KHABAROVSK TERRITORY)
Authors:   Institute of Water and Ecology Problems, Far Eastern Branch of the Russian Academy of Sciences, 56 Dikopoltseva St., Khabarovsk, 680000, Russia, Yavorskaya N.M. ,   Federal State Budgetary Institution «Zapovednoe Priamurye», 60 Seryshev St., Khabarovsk, 680038, Russia, Teslenko V.A. ,   Federal Scientific Center of East Asia Terrestrial Biodiversity, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia, Gorovaya E.A. ,   Federal Scientific Center of East Asia Terrestrial Biodiversity, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia
Published: June 2023

The group structure of the macrozoobenthos communities in the rivers of the Tugursky Peninsula, located in the Tugur- Chumikansky district of the Khabarovsk Territory, was described for the fi rst time. The material was collected in four rivers fl owing into the Ulban Bay of the Sea of Okhotsk and nine streams of the Tugur Bay with estuaries. Most of the surveyed rivers belong to the category of small salmon streams of the submountain type and are the environment and reproduction for anadromous and freshwater fi shes, which feed on benthic invertebrates. It has been established that the faunistic composition of benthic invertebrates in the streams of the Tugur Peninsula is relatively rich, represented by more than 155 taxa from 16 taxonomic groups. Average macrozoobenthos density varies from 2320 to 29568 ind./m2, biomass from 3,7 to 36,4 g/m2. In the benthic communities of all streams chironomids were dominant in density. In estuaries aff ected by tides, the category of dominants in terms of density and biomass is formed by oligochaetes. Mayfl ies predominate in the benthos structure in the upper and middle reaches. Stonefl ies and caddisfl ies mostly fall into the categories of subdominants and minor groups. The high coeffi cients of faunal similarity in diff erent parts of the streams suggest that the impact of tidal events on the taxonomic composition of benthos in estuaries is minimal. At the same time, signifi cant changes were revealed in the structure of estuarine communities among the dominant groups of macrozoobenthos. According to the EPT index, the ecological state of most streams is assessed as good or good-medium.
Fatores associados às doenças crônicas não transmissíveis na população idosa
Authors: Pereira Victor Guilherme , Fernandes Valéria Carvalho , Rocha Diego Barbosa , Valadares Karine Gonçalves , Rocha Samara Atanielly , Leite Maria Geralda , Silva Deiviane Pereira da , Ruas Sélen Jaqueline Souza , Ribeiro Cláudia Danyella Alves Leão , Barbosa Henrique Andrade
Published: June 2023

Objetivo: Investigar os principais fatores associados às doenças crônicas não transmissíveis na população idosa. Métodos: Estudo de revisão integrativa realizado por meio de busca de dados na PubMed, na Cochrane Library e na Biblioteca Virtual de Saúde (BVS). A seleção de estudos ocorreu entre outubro e dezembro de 2022, sendo utilizados os descritores: Chronic Diseases, Aged e Risk Factors. Aplicou-se o operador booleano AND para correlacionar os assuntos. Resultados: Esta revisão foi constituída por 13 produções, publicadas entre 2019 e 2022, sendo oito indexadas na PubMed, quatro na BVS e um na Cochrane. A análise dos estudos resultou no levantamento de três unidades temáticas (UT): UT1 - Fatores de risco para DCNT relacionados ao envelhecimento, às condições de saúde e os hábitos de vida; UT2 - Condições socioeconômicas, demográficas e psicossociais associadas ao risco de DCNT; e UT3 - Exposição longitudinal aos fatores de risco para DCNT e os agravos à saúde. Considerações finais: Este estudo revelou que, além dos fatores biológicos, deve-se considerar e compreender que as condições demográficas, socioeconômicas e psicológicas influenciam, longitudinalmente, no surgimento e agravamento das doenças crônicas, principalmente, na população idosa.
Epidemiologia das internações por infarto agudo do miocárdio nos setores de emergência do Ceará
Authors: Nascimento Manoel Mateus Xavier do , Brito Maria Luiza Peixoto , Sá Ellen Maria Oliveira de , Matias Mírian Cecília Silva , Pinheiro Woneska Rodrigues
Published: June 2023

Objetivo: Descrever o perfil epidemiológico do infarto agudo do miocárdio nos setores de emergência do Ceará. Métodos: Trata-se de um estudo epidemiológico, transversal, retrospectivo e descritivo, apresentação quantitativa, com coleta de dados do Departamento de Informática do Sistema Único de Saúde (DATASUS) entre os anos de 2013 a 2022. Resultados: No estado do Ceará, de 2013 a 2022 foram confirmados 30912 casos de infarto agudo do miocárdio. Quanto ao número de óbitos, o estado notificou 4458 casos. O ano com mais registros foi 2022, com 4492. O sexo masculino foi o mais prevalente com 19.116 registros (61,8%). A cor parda foi a mais acometida com 10873 casos (35,1%). Em relação à faixa etária, a maior prevalência ocorreu entre 60 e 69 anos, com 8721 registros (28.5%).  Em relação a distribuição dos casos no estado por macrorregiões de saúde, a região de Fortaleza liderou com 20.293 casos, representando 66,50% das internações. Conclusão: As ocorrências do infarto agudo do miocárdio foram prevalentes no sexo masculino, nas pessoas com idade entre 60-69 anos, na cor parda, e com maior incidência na macrorregião de Fortaleza.
Conflict in the Neo-Colonial Order in Africa: The Case of Ethiopia-Tigray
Authors: Demirtaş Tunç
Published: June 2023

This article analyzes the Tigray crisis in Ethiopia based on the policies of global and regional powers in the context of the African neo-colonial order. The study emphasizes that although the colonial system has ended in the international system, the power struggle in Africa continues through neo-colonialism. The article proceeds with the argument that changing the policies of global and regional actors may result in neo-colonial struggle and instability in Ethiopia. The study aims to define a variable of the approaches of global and regional actors, which is the cause of the instability and neo-colonial struggle experienced due to the crisis in Ethiopia. In this context, the study’s most probable case study method was used and it assumed that the indirect involvement of global and regional actors in the Ethiopian-Tigray conflict has a neo-colonial purpose. Global actors have different interests in line with the regional power struggle and competition. It shows the existence of neo-colonialism as global and regional actors influence Ethiopia’s economic and political systems. Ethiopia’s exposure to neo-colonial interventions hinders these countries’ economic growth and their political, social, and technological development. As a result, it has reached that the neo-colonial struggle has a destabilizing effect on Ethiopia.
NATO’s Enlargement Policy and Türkiye’s Position: A Key NATO Ally
Authors: Bağbaşlıoğlu Arif
Published: June 2023

NATO’s enlargement policy indicates the admission of new members with full membership status within the framework of mutual mandates and responsibilities and the expansion of NATO’s borders and geographical areas of responsibility. The accession of fifteen members to the Alliance in the post-Cold War period has brought along some controversies. Türkiye supports NATO enlargement in principle. This study discusses Ankara’s stance and cautious attitude towards Finland and Sweden’s applications for NATO membership by evaluating how NATO’s post-Cold War enlargement policy has affected Türkiye’s position within NATO. The main claim of the study is that NATO’s decision-making procedure has had a positive impact on Türkiye’s relations with candidate countries.
Framing Türkiye’s Cosmopolitan Relations with the Western Balkans
Authors: Mulalić Muhidin , Karic Mirsad
Published: June 2023

This paper aims to divert from the conventional understanding of diplomacy and foreign policy, which is conditioned by postmodern realities. These emerging realities, which transcend national borders, strongly consider science, technology, climate, environment, and security. Thus, the postmodern age, characterized by fragmentation, uncertainty and risk, requires a shift from conventional multilateral and/or bilateral diplomacy to cosmopolitan diplomacy and foreign policy. This paper will apply Ulrich Beck’s theory of cosmopolitanism, reflexivity and risk on Türkiye’s diplomatic relations with the Western Balkans countries. A brief analysis of Turkish relations with the Western Balkans countries shall expand to the common questions of climate, environment, digitalization, and security. What could be the role of involuntary enlightenment, enforced communication across different borders, political catharsis, enforced cosmopolitanism, global system of governance, international legalism, and digitalization in framing Türkiye’s cosmopolitan diplomacy towards the Western Balkans? How the focus on environmental diplomacy, health diplomacy, migration diplomacy, reconciliation diplomacy, digital diplomacy, youth diplomacy and education diplomacy could encounter an exclusive Western Balkans focus on emancipatory politics, ethnonationalism, narratives and ideologies?
Coblation tonsillectomy versus conventional tonsillectomy
Authors: Budhiraja Grace , Kaur Navjot , Singh Harsimrat , Bharti Pulkit
Published: June 2023

Objectives:

The objective of this study was to compare the effectiveness of conventional tonsillectomy versus coblation tonsillectomy with respect to duration of surgery, amount of intraoperative bleeding, recovery time, and post-surgical pain.

Material and Methods:

Sixty patients were divided into two groups. One group underwent conventional tonsillectomy while coblation tonsillectomy was performed in the second group. Duration of surgery, amount of intraoperative bleeding, recovery time, and postsurgical pain were measured. All patients were followed for 24 months.

Results:

Comparing the coblation tonsillectomy group to the cold steel dissection tonsillectomy group, the mean duration of surgery was 6.92 versus 18 min, the amount of intraoperative bleeding was 2.75 versus 39.88 mL, and the difference on the post-operative pain scale between the two groups was statistically significant (P < 0.005). There was no recurrence of tonsillitis episodes in either of the two groups during the 2-year follow-up period.

Conclusion:

After adequate training, the coblation technique is beneficial to both the surgeon and the patient, including the possibility to excise tissue and coagulate bleeding vessels with the same device. Post-operative morbidity and complications are lower as compared to the conventional cold dissection technique.
Scenarios warranting modified treatment regimens in leprosy: A 5-year retrospective study from a tertiary care center
Authors: Hamlet Celia , Nair Pradeep S.
Published: June 2023

Objectives:

To study the scenarios warranting modified treatment regimens in leprosy.

Materials and Methods:

A 5-year retrospective study was carried out in a tertiary care center by analyzing the data collected from national leprosy eradication program (NLEP) records.

Results:

During the 5-year study period, 171 patients received treatment for leprosy from our center. Thirtyone patients (31/171, 18.1%) required substitution of standard multidrug therapy (MDT) with alternate drugs or required alternate treatment regimens. The patients who required modified treatment included 18 men (18/31, 58.1%) and 13 women (41.9%). Male/female ratio was 1.4:1. Indications for treatment modification were adverse drug reactions to standard MDT (ADR) (21/31, 67.7%) and lack of response to standard MDT (10/31, 32.3%). The most common scenario that warranted a modification of standard MDT was dapsone-induced hemolysis (12/31, 38.7%). Seven (7/31, 22.6%) and two (2/31, 6.5%) patients needed a change in treatment due to drug-induced hepatitis and drug-induced maculopapular rash, respectively.

Limitations:

Retrospective study design, study conducted in single tertiary referral center and small sample size were the limitations.

Conclusion:

Nearly one-fifth of patients with leprosy required modifications in standard MDT. The most common indication (in two-third of patients who needed a modified treatment) for modification of treatment regimen was adverse drug reactions.
Les innovations pédagogiques et didactiques en éducation physique
Authors: Lentillon-Kaestner Vanessa
Published: June 2023

Editorial #9
Innovations numériques, effet "Waouh !" et apprentissages en éducation physique et en mathématiques
Authors: Cece Valérian , Fargier Patrick , Girod Guillaume , Bovas Magali , Lentillon-Kaestner Vanessa
Published: June 2023

L’effet Waouh correspond à l’émerveillement immédiat que peuvent ressentir les utilisateurs d’une innovation technologique. Dans le cadre scolaire, on peut craindre que le recours à des outils numériques innovants suscite cet effet sans pour autant favoriser les apprentissages. Afin de déterminer si cette crainte est fondée, le présent article rend compte de résultats récents examinant les effets de jeux vidéo actifs de la plateforme numérique Play Lü® sur les apprentissages en éducation physique. Les résultats étayent l’idée d’un possible dépassement de l’effet Waouh pour favoriser des apprentissages moteurs et cognitifs. Leur exposé débouche sur une réflexion aux conditions du recours à ce type d’innovations dans un but d’apprentissage.
Apprendre tout en jouant
Authors: Lentillon-Kaestner Vanessa , Fargier Patrick , Cece Valérian
Published: June 2023

L’UER EPS au sein de la HEP Vaud a investi depuis 2019 dans un dispositif de jeux vidéo actifs (JVA), la plateforme Lü® et développe différents travaux de recherche et développement afin de mesurer les effets de ce dispositif sur l’activité physique, la motivation et les apprentissages des élèves. Concernant les apprentissages, un premier projet a consisté à développer une séquence interdisciplinaire en éducation physique et en mathématiques avec et sans le dispositif Lü®. Un second projet en cours de développement vise le développement de séquences interdisciplinaires en éducation physique et en langues. Au regard de leurs caractéristiques intrinsèques, les JVA constituent des ressources pédagogiques intéressantes afin d’améliorer les apprentissages en milieu scolaire. Un travail d’ingénierie didactique est nécessaire afin que les apprentissages soient mis au cœur des séquences et que le jeu devienne un moyen au service des apprentissages.
Teachers’ voices of TPACK practices on ELT in the post-COVID-19 pandemic
Authors: Rochsantiningsih Dewi , Aniq Lailatun Nurul
Published: June 2023

This narrative study aimed to interpret evolving themes of teachers' TPACK practices through an entirely different lens. This study engaged two in-service EFL teachers, one who taught in a rural school and another who taught in an urban school. This study was conducted from May to October. In-depth interviews were utilised to shed light on their emotional experiences. Then, we analysed the data through Critical Thematic Analysis. Findings demonstrated how ongoing regulations generated conditions teachers encountered with shifting teachers’ paradigms. Participants truly believed that their TPACK has transitioned to the enhancement of the dominant technology-related knowledge domain (TCK, TPK & TPACK). However, they experienced a deterioration of the quality of the non-technology-related knowledge domain (CK, PK & PCK). There was a gap between teachers' perceived importance of technology-integrated activities and actual integration, which remained a persistent barrier to teachers' technology integration. The study suggests policymakers should pay heed to maintaining sustainable educational system stability rather than forcing teachers to implement an unsteady policy.