bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategies to Prevent Bacterial Infections on Titanium-Based Orthopedic and Dental Implants
Authors: Villegas Martin , Bayat Fereshteh , Kramer Taylor , Schwarz Elise , Wilson David , Hosseinidoust Zeinab , Didar Tohid
Published: October 2023

Titanium and titanium alloys remain the gold standard for dental and orthopedic implants. These materials are heavily used because they are bioinert, have strong mechanical properties, and promote integration with bone. However, implant-associated infections (IAIs) remain one of the leading causes of implant failure. Eradicating an IAI can be difficult since bacteria can form biofilms on the medical implant, protecting the bacterial cells against systemic antibiotics and the host’s immune system. If the infection is not treated promptly and aggressively, device failure is inevitable, leading to costly multi-step revision surgeries. To circumvent this dire situation, scientists and engineers continue to fabricate novel strategies to protect the surface of medical implants from bacteria. In this review, we report on emerging strategies to prevent infection in titanium implants. These strategies include anti-adhesion properties provided by polymers, superhydrophobic, superhydrophilic, and liquid-infused surface coatings, as well as strategies and coatings employed to lyse the bacteria. We also explore commercially available technologies or under clinical trials and discuss future trends.
INTERIORIZATION OF THE CANONS OF MANNESS AND FEMININENESS AS A DETERMINANT OF THE GENDER IDENTITY OF MODERN YOUTH
Authors: Волобуев В.В. , Рядинская Е.Н.
Published: October 2023

Целью исследования ставилось изучение интериоризации канонов мужественности и женственности как детерминанты гендерной идентичности современной молодежи. Для решения поставленных цели и задач были использованы следующие методики: «Мужские нормативные установки» Р. Луйт, «Нормы женского поведения» И.С. Клецина, Е.В. Иоффе, «Опросник С. Бэм» и «Нормы поведения мужчины и женщины» О.Г. Лопухова. Выявлены взаимосвязи между уровнем гендерной идентичности, показателями феминности-маскулинности и наличием установок и стереотипов о мужском и женском поведении, что подтверждает выдвинутую гипотезу. У юношей выявлена связь между уровнем гендерной идентичности и мужскими установками (ориентация на достижения, итоговый показатель). В группе девушек были выявлены связи между уровнем гендерной идентичности и установками относительно женского поведения (значимость привлекательной внешности, самодостаточность в отношениях с противоположным полом, зависимость, итоговый показатель). Осуществленное изучение современных канонов мужественности и женственности, гендерной идентичности среди молодёжи позволяют увидеть среди людей молодого возраста современную тенденцию стремления к эгалитарным нормам и более современным моделям поведения, а также показывают новые взгляды на образы мужественности и женственности.

The aim of the study was to study the internalization of the canons of masculinity and femininity as a determinant of the gender identity of today's youth. To solve the set goals and objectives, such methods were used as: «Male normative attitudes» by R. Luit, «Norms of female behavior» by I.S. Kletsina, E.V. Ioffe, «Questionnaire S. Bam» and «Norms of behavior of a man and a woman» O.G. Lopukhov. Relationships between the level of gender identity, indicators of femininity-masculinity and the presence of attitudes and stereotypes about male and female behavior were revealed, which confirms the hypothesis put forward. In young men, a relationship was found between the level of gender identity and male attitudes (orientation towards achievements, final indicator). In the group of girls, links were found between the level of gender identity and attitudes regarding female behavior (the importance of an attractive appearance, dependence, self-sufficiency in relations with men, the final indicator). The carried out study of the modern canons of masculinity and femininity, gender identity among young people allows us to see among young people the modern trend of striving for egalitarian norms and more modern models of behavior, and also show new views on the images of masculinity and femininity.
NRF2 connects Src tyrosine kinase to ferroptosis resistance in glioblastoma
Authors: Cirotti Claudia , Taddei Irene , Contadini Claudia , Di Girolamo Claudia , Pepe Gerardo , De Bardi Marco , Borsellino Giovanna , Helmer-Citterich Manuela , Barilà Daniela
Published: October 2023

Glioblastoma is a severe brain tumor characterized by an extremely poor survival rate of patients. Glioblastoma cancer cells escape to standard therapeutic protocols consisting of a combination of ionizing radiation and temozolomide alkylating drugs that trigger DNA damage by rewiring of signaling pathways. In recent years, the up-regulation of factors that counteract ferroptosis has been highlighted as a major driver of cancer resistance to ionizing radiation, although the molecular connection between the activation of oncogenic signaling and the modulation of ferroptosis has not been clarified yet. Here, we provide the first evidence for a molecular connection between the constitutive activation of tyrosine kinases and resistance to ferroptosis. Src tyrosine kinase, a central hub on which deregulated receptor tyrosine kinase signaling converge in cancer, leads to the stabilization and activation of NRF2 pathway, thus promoting resistance to ionizing radiation-induced ferroptosis. These data suggest that the up-regulation of the Src–NRF2 axis may represent a vulnerability for combined strategies that, by targeting ferroptosis resistance, enhance radiation sensitivity in glioblastoma.
Computer modeling - a new mechanism of discoveries in natural science
Authors: Buts Vyacheslav , Gushchin Ivan , Yanovsky Volodymyr , Kuklin Volodymyr , Mishyn Olexander , Poklonsky Evgen , Prymak Aleksey , Sevidov Serhiy , Sporov Oleksandr
Published: October 2023

The paper notes that, on the one hand, the scientific methodology has been enriched with new, previously unknown tools - a personal computer, and on the other hand - all the previous processes of calculations, numerical simulation have been significantly accelerated by orders of magnitude. And, in addition, it was found that due to the permanent interactive communication with a personal computer connected to the world wide web, researchers have new opportunities to search for new effects and phenomena. A new reality of scientific research has emerged - “man-computer-network”. Below are new phenomena discovered exclusively through computer modeling.
Neural Networks in the Modern Age
Authors: Gushchin Ivan , Kuklin Volodymyr , Mishyn Alex
Published: October 2023

The idea to apply representations about the work of the human brain as mathematical models, which can be used in a variety of applied tasks is shown. It is shown that mathematical and physiological models have quite little in common, but the basic idea - to apply neurons as some independent computational nodes and combine them into layers - has been developed to the current state of technology. The historical background of the development of neural network science is given and the main researchers, whose works have influenced the vector and the pace of technology development the most, are mentioned. It is shown that neural networks had different support from investors during their development and the peak of mass interest in them depended on the emergence of necessary computing power or a breakthrough network architecture. Such networks were in its time perceptrons, networks with feedback, networks applying convolution operation for image analysis and classification. It is shown that the so-called deep learning has developed based on weight optimization methods by gradient descent. A review of known solutions of supervised learning, feedback, and language-based learning networks is conducted. Generative models look like the most promising direction in the development of scientific thought and the creation of interpretive solutions based on neural networks. It is shown that in learning with a teacher, which is typical for deep neural networks, the optimization for it is performed by regularization procedures, which help to avoid diversity and provide error minimization during error back propagation
Minimasi Human Error pada Operator Produksi Alat Kesehatan Menggunakan Pendekatan THERP-HAZOP
Authors: Safitri Dian Mardi , Mahadevi Ni Putu Githa Gayatri Prema , Adisuwiryo Sucipto
Published: October 2023

Kebutuhan penggunaan masker meningkat menjadi 20,15 kali lebih banyak di tahun 2021 saat varian Delta dari virus COVID-19 masuk ke Indonesia. Seiring meningkatnya produksi masker untuk memenuhi permintaan, jumlah kecelakaan kerja yang disebabkan oleh human error pada stasiun kerja Manual Welding pun meningkat. Penelitian ini dilakukan pada operator Manual Welding Machine yang memproduksi masker headloop dengan tujuan untuk membuat rancangan usulan mitigasi terkait tugas/pekerjaan yang memiliki nilai probabilitas error tertinggi. Beberapa metode yang digunakan untuk mencapai tujuan penelitian yaitu HTA untuk menyusun rincian tugas, metode THERP untuk menghitung HEP, event tree untuk analisis dampak terburuk yang dapat terjadi, dan HAZOP untuk menyusun upaya mitigasi. Hasilnya, aktivitas persiapan proses welding, pengambilan bahan baku, dan persiapan bahan baku sebelum proses welding merupakan 3 aktivitas dengan nilai HEP tertinggi. Jika terjadi error pada ketiga aktivitas tersebut maka dapat menyebabkan cedera ringan hingga berat pada operator dan menyebabkan error pada sekitar area produksi. Untuk menangani masalah tersebut, beberapa upaya mitigasi yang dapat direkomendasikan yaitu dengan membuat warning display untuk proses mematikan mesin serta membuat SOP pengoperasian mesin yang dapat ditempel di sekitar stasiun kerja.
El rol de la cirugía mínimamente invasiva en la resección de tumores gastrointestinales: una revisión integral
Authors: Yepez Chicaiza Katia Ximena , Pasquel Narváez Geovanny Alexander , Castillo Córdoba Lisseth Viviana , Chiliquinga Cando María Ximena
Published: October 2023

El cáncer gástrico es el quinto cáncer más frecuente a nivel mundial, con una distribución variada y un comportamiento agresivo. La incidencia es más alta en el este de Asia, varios países de América del Sur y Central, Europa Central y del Este, y más baja en América del Norte y África. El cáncer gástrico es el quinto cáncer más frecuente a nivel mundial, con una distribución variada y un comportamiento agresivo. La presente investigación se enmarca dentro de una metodología de tipo bibliográfica documental. Ya que es un proceso sistematizado de recolección, selección, evaluación y análisis de la información, que se ha obtenido mediante medios electrónicos en diferentes repositorios y buscadores tales como Google Académico, Science Direct, Pubmed, entre otros, empelando para ellos los diferentes operadores booleanos y que servirán de fuente documental, para el tema antes planteado. La cirugía mínimamente invasiva en la resección mediante gastrectomía de patologías gastrointestinales tumorales y cancerígenas, tiene múltiples ventajas, cuando se comparan los resultados con la cirugía convencional suelen ser iguales, la ventaja adicional que tiene la cirugía laparoscópica con respecto a la abierta es menor sangrado, una mayor recuperación y estancia hospitalaria, la morbilidad de estas patologías se asocian a su estadio, la sobrevida y curación en tumores y/o cáncer temprano suele ser mayor.
Gestión administrativa y su impacto en el desarrollo económico del Centro de Acopio Comuna Barquero del cantón Chone
Authors: Solis Barreto Yomira Lilibeth , Zaruma Pincay Margarita Elena , Centeno Moreira Javier Andrés , Muñoz Alcívar Raquel Aurora
Published: October 2023

La presente investigación aborda el tema de la Gestión Administrativa y su Impacto en el Desarrollo Económico del Centro de Acopio Comuna Barquero del Cantón Chone". El objetivo general de esta investigación es analizar cómo la gestión administrativa influye en el desarrollo económico de dicho centro de acopio, mientras que los objetivos específicos son identificar los procesos administrativos en el centro, determinar la influencia del desarrollo económico en sus actividades y examinar el impacto de la gestión en su crecimiento económico. El enfoque metodológico adoptado es descriptivo y no experimental, utilizando métodos inductivos, deductivos, analíticos y sintéticos para observar el fenómeno en su entorno natural sin alterar variables. El impacto del desarrollo económico en las actividades del centro de acopio es notable, ya que un buen desempeño administrativo y un desarrollo económico positivo conducen a mayores utilidades y resultados Las técnicas que se utilizaron para recoger los datos relevantes que permitió llegar conclusiones son observación, entrevista y encuesta El estudio también revela que una gestión administrativa eficiente y bien estructurada contribuye al desarrollo económico del centro de acopio. Por el contrario, una gestión deficiente puede afectar negativamente la atención al cliente, y la eficiencia. En conclusión, la gestión administrativa desempeña un papel crucial en el desarrollo económico del Centro de Acopio. La eficiencia en procesos, capacitación del personal, innovación y relaciones comerciales son fundamentales para un crecimiento sostenible. La falta de una gestión adecuada puede afectar negativamente la calidad de los servicios y la comercialización. Se recomienda la implementación de mejoras en la gestión, capacitación del personal para impulsar el desarrollo económico y garantizar la sostenibilidad a largo plazo.
Determination of optimal design and technological parameters of a hammer crusher with sieves in end surfaces
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Savinyh Petr A.
Published: October 2023

When preparing compound feeds, the main machines used for grain crushing are hammer crushers. To obtain a better-quality finished product with lower energy costs, it is necessary to determine the optimal design and technological parameters of a hammer crusher. To this end, the laboratory of livestock production mechanization has designed a hammer crusher with sieves in the end surfaces. The hammer crusher has adjustable cross-sections of the sieve holes, so there is no need to replace the sieves. Experimental studies have been carried out at the production facilities of the North-East Federal Agency of Scientific Institutions to determine the impact of changes in structural and technological parameters of the crusher on its main performance indicators. According to the results of experimental studies, mathematical models of the working process of the hammer crusher have been obtained. As a result, the optimal design and technological parameters of the hammer crusher have been determined: the area of the sieve openings 58.6 мм2 ; the height of the material separation ring 40 mm and the size of the air filter area 6 m2 , while the throughput capacity of the crusher is 1.23 t/h, specific energy consumption is 3.44 kWh/(t×units of fineness degree), the average size of crushed particles is 1.45 mm, the share of whole grains in the finished product is 0.17%.
Universal pneumatic seeding unit
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Akhalaya Badri K.
Published: October 2023

Designing a seeding unit for the combined sowing of grain crops is a relevant and promising area of the development of sowing equipment. For this purpose, the authors designed a universal pneumatic vacuum-type seeding unit capable of sowing seeds of two crops simultaneously by dotted, combined, and nested methods and providing different sowing rates. Openings of the sowing polymer disc are equipped with built-in metal bushings, located at a 20-mm offset from the disc edge. The polymer material was chosen based on greater efficiency compared to a metal disc: longer life, moisture resistance, lower damage to seeds. The developed sowing disc is equipped with round magnetic pads with a diameter larger than the hole diameter, the ratio between the sowing disc diameter and the hole is 1:20; the ratio between the thickness of the magnetic pad and that of the sowing disc is 1:3. Magnetic pads may have up to four holes with a diameter of 1.5 to 2 mm. Due to this feature the sowing device can sow seeds according to different patterns. When sowing seeds in the dotted method, seeds of one crop are fed into a half-part of the sowing unit hopper, a coulter with one slide is installed and a one-hole disc with a magnetic pad is used. The use of a blind magnetic pad makes it possible to change the distance between seeds in the row.
Remote control of the crankshaft speed of a tractor engine using a machine learning algorithm
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, KATAEV YURIY V.
Published: October 2023

Diagnostics of the technical condition of agricultural machinery based on machine learning with artificial intelligence employs the accumulated experience to localize the malfunction and makes it possible to evaluate its technical condition in the shortest possible time. New computing devices (built-in diagnostic tools) store and process large amounts of information and reduce the time needed to assess the technical condition of the equipment. To predict malfunctions, the authors analyzed the crankshaft speed of a tractor engine using the Random Forest machine learning algorithm. They developed a counter-indicator and software for the remote control of the engine crankshaft speed. The developed prototype counter-indicator software was tested on the D‑243 engine. As a result, remote diagnostics of agricultural machinery revealed the main causes of malfunctions affecting the engine crankshaft speed. The Random Forest algorithm made it possible to “predict” malfunctions with acceptable accuracy: it calculated all values correctly from a sample of 13 values and made 4 errors from a sample of 51 values. Diagnostics with the help of a machine learning algorithm made it possible to assess the technical condition of the equipment in real time without making fundamental changes to the design, and to give forecasts and suggestions for its maintenance and repair.
Исследование инерционного отделителя пневмозагрузчика клеверотёрки
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, BURKOV ALEKSANDR I.
Published: October 2023

The clover thresher with a pneumatic loader, having an inertial louvered counterflow separator, is characterized by a simple design and operation, reliability and durability, convenient arrangement with other elements of the pneumosystem and relatively low hydraulic resistance. The wedge-shaped sedimentation chamber (separator) with a horizontally displaced discharge opening towards the inlet window is equipped with a louvered partition installed at the junction of the inlet and outlet windows. To determine the basic design parameters of the inertial louvered counterflow separator of the clover thresher, the authors experimentally studied the hull of meadow clover with a humidity of 12 to 14% of the following composition: 57.4% of beans with seeds; 16.6% of free seeds; 25.0% of light impurities; 1.0% of heavy impurities. As a result, the main design parameters of the separator have been determined: the length of the louver grille is 210 mm, the pitch, length, angle of installation of the louver plates are 40mm, 50 mm, 30°, respectively, the height of the inlet and outlet windows of the separator is 120 and 280 mm, the height of the outlet windows of the louver and counterflow cleaners is 190 and 80 mm, the depth of the discharge pipe of the sedimentary chamber is 570 mm. The efficiency of the pneumatic loader when feeding 300 kg/h: the amount of released heavy impurities - 100%, light impurities -33.6%, loss of full-fledged seeds to waste - 0.8% hydraulic resistance - 196 Pa. The research results give grounds to recommend this design for application.
Estimation of the operating efficiency of deep loosening soil tillage elements using the rational utilisation factor
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Ushakov Aleksandr E.
Published: October 2023

In conditions of increasing production and turnover of agricultural crops, soil degradation associated with wind and water erosion leads to depletion of fertile land and reduction of crop yields. One of the ways to increase the protective capacity of cultivated areas is deep loosening. The development of methods for assessing the efficiency and forecasting the use of tillage elements, taking into account economic, qualitative and agrotechnical requirements is an urgent task. To provide for the rational choice of a tillage element, the authors compared commercially produced domestic and foreign chisels, their mechanical and economic parameters and agrotechnical requirements for deep tillage of soils in the Southern Federal District. The analysis of mathematical models and methods was applied to evaluate the efficiency of working elements of soil tillage implements. Forecasts of their service life and loosening quality evaluation were made based on the algorithm developed in Matlab. The algorithm was used to calculate the rational utilisation factor of the chisel based on the data of its thickness and angle of installation, the initial size of the soil clod and the degree of crumbling. The rational utilization factor takes into account chisel design parameters (steel grade, thickness, sharpening angle and hardness), economic (price and estimated service life) and agrotechnical (depth of cultivation). Knowing the rational utilisation factor, we can get a rough estimate of the tool quality at the stage of design or purchase. This solution will reduce unnecessary costs, identify design deficiencies, determine the theoretical degree of crumbling by passive working elements and select the optimal tool taking into account economic, qualitative and agrotechnical requirements.
Developing a mathematical model for determining the efficiency of agricultural machinery at separate levels of a multilevel quality assessment system
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, GAIDAR S. M.
Published: October 2023

The evaluation of a set of quality properties of agricultural machinery requires the application of multi-criteria optimisation models. A possible solution implies trade-offs, because the evaluated index of one of the criteria cannot be varied at the expense of the evaluation indices of other criteria. The mathematical model for determining the effi ciency of objects at individual levels of the multilevel system of agricultural machinery quality assessment implements a universal approach to solving problems with any set of attributes and their varieties. In this case, not only the solutions themselves, but also the algorithms of their search and selection, including procedures for describing con ditions (situations), can be subject to systematisation. The authors propose an analytical defi nition of coeffi cients according to the formula used to study information states based on the principle of decreasing the importance of priorities between the attributes in the matrix. According to the developed mathematical model with a random set of indicators, the authors have calculated relative importance coeffi cients for four investigated objects by four attributes and presented the results of data conversion into relative units and normalisation in the “recogniser”. The calculation results show that the developed mathematical model makes it possible to analytically determine the effi ciency for any number of investigated objects by a suffi ciently large number of attributes and objectively assess their effi ciency for individual “recognisers” in the system of quality assessment of agricultural machinery.
Developing the technology of friction alitising
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, BALABANOV V. I.
Published: October 2023

Finishing anti-friction non-abrasive treatment (FANT) is one of the highly eff ective methods of increasing tribotechnical properties of parts (wear resistance and scoring resistance). The lack of highly eff ective technological media and devices for treating parts, as well as low corrosion resistance of the applied copper-containing coatings restrains the use of FANT. The technology of friction alitising, proposed by the authors, consists in the application of an aluminum-containing protective coating by friction, through the use of an aluminum rubbing tool and the developed technological medium, which includes aluminum salts. The technical alloy of AD1 grade GOST 4784-97, consisting of 99.3% Al, Fe - 0.3%; Si - up to 0.3%; Ti - not more than 0.15%; Zn - up to 0.1%; Mg - not more than 0.05%; Cu - up to 0.05%; manganese Mn - not more than 0.025% and impurities - up to 0.05% was chosen as a material of the rubbing tool. Cylindrical samples were used as the treated part during the elaboration. The technological medium developed by the authors includes salts of copper, tin and nickel, glycerine, glucose and water with additional content of aluminum salts. It has been established that qualitative friction alitising should be carried out in 3 to 4 passes at a sliding speed of the rubbing tool of 0.1 to 0.3 m/s and pressure of the rubbing tool within 5 to 7 MPa. For mass production, the technological process of alitising should include the following operations: cleaning before processing, defecting, friction alitising, cleaning after processing, quality control of coating and preservation of the part - if necessary for long storage.
Role of the spectral characteristics of radiating sources in the formation of lettuce yield in hydroponics cultivation
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Dolgikh Pavel P.
Published: October 2023

Growing plants indoors in the controlled environment involves the use of LED systems with an adjustable spectrum and intensity with manual or remote control. The aim of the study was to determine the role of different LED emission spectra in growth, development, and yield of lettuce cultivated hydroponically to develop requirements for the LED irradiator design. Studies were carried out in a growth chamber with periodic flooding hydroponics when irradiating lettuce plants of Kuk, Afitsion, and Khrizolit varieties under multispectral irradiators. The first irradiator has a radiation spectrum coinciding with the spectral distribution function of relative photosynthetic activity of solar radiation (control). The radiation of the second one coincides with the function of the spectral sensitivity of plants according to K.J. McCree. The third irradiator has an adjustable spectrum by three control channels for three parts of the spectrum coinciding with chlorophyll synthesis functions. It was found that the response of different lettuce varieties to the spectral composition of irradiation is specific. The maximum yield of the Kuk variety (4.45 kg/m2 ) was obtained under the first irradiator, that of lettuce Afitsion (4.7 kg/m2 ) and Khrizolit (6.55 kg/m2 ) - under the second one. Based on the results obtained the authors made requirements and designed an LED irradiator, which combines all the advantages of LED and digital technologies and provides for the implementation of the required radiation functions for laboratory research and in-vitro plant cultivation. It is noted that the LED module of the irradiator should include LEDs of violet, blue, red, dark red, and far red radiation, as well as LEDs of warm and cool white light colours.
Device for detecting ferromagnetic bodies in the feed path of forage harvesting machinery based on the Hall sensor
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, Vernezi Miroslav A.
Published: October 2023

The operation principle of metal detectors used in forage harvesting equipment operating in the harvested area is based on the registration and processing of a signal from sensors that respond to changes in the static magnetic field caused by the movement of ferromagnetic bodies in the area of the magnetic field. The systems based on measuring coils do not meet modern requirements for the level of sensitivity. The authors consider a possibility of using magnetic field sensors based on the Hall effect as sensitive elements. Taking into account the geometric features of the system, each sensing element must be positioned in such a way that the magnetic field generated by two adjacent magnets is perpendicular to the plane of the sensing element. Under this design, the sensitive elements should be located in planes oriented at different angles relative to the direction of the crop supply. When a ferromagnetic object passes through the detection field, it changes the magnetic field density on one or more sensing elements, and the Hall effect sensor outputs a voltage directly proportional to the magnitude of the magnetic field. This signal is processed, after which another signal is generated to stop the feed rolls. Efficient real-time signal processing has a positive effect on the speed of response to a foreign body in the machine feeder.
The Effect of Follicular Fluid Eight Hydroxyl Deoxyguanosine (8‐ OHdG) Levels on Intracytolplasmic Sperm Injection (ICSI) Outcome
Authors:   Ministry of health,Baghdad,Iraq, Alokbi Zainab , Mudher Sulaiman Al-Hilli Nadia ,   College of Medicine, University of Babylon, Babylon, Iraq, A. Algebori Safa ,   High Institute for Infertility Diagnosis and Assisted Reproductive Technologies, A. L. Mossa Hayder ,   High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, Al Nahrain University, Baghdad, Iraq.
Published: October 2023

Reactive oxygen species( ROS )are believed to play an important role in the function of the male and female reproductive system, as well as in embryonic development. If the balance between production and elimination of ROS is disturbed, pathogenic consequences would happen. Reactive oxygen species can sometimes exert damaging effects when overabundant, oxidative stress is hypothesized to have a negative impact on, for example, folliculo genesis, embryo development, oocyte maturation, oocyte fertilization, endometriosis, polycystic ovary syndrome and unexplained infertility 8-Hydroxy2-desoxy guanosine (8‐OHdG) is a sensitive indicator of DNA damage as a result of oxidative stress. aim: In this study, our aim was to evaluate follicular fluid levels of 8-Hydroxy2-desoxy guanosine in patients undergoing IVF and compared the results between both pregnant and non pregnant patients. method : 127 women included in this study, they underwent controlled ovarian hyper stimulation, program followed by ova pick up, at that time follicular fluid were obtained and freezes till the time of analysis for reactive oxygen species, patient injected oocyte were cultured in CO2 incubator ,then embryo grading, embryo transfer ,pregnancy rate and reactive oxygen species level were determined. results: Follicular fluid reactive oxygen species was significantly lower in pregnant females (p < 0.001), reactive oxygen species had negative correlations with grade 1 and grade 2 embryos and negative correlation with total blastocyst count. conclusion: Follicular fluid levels of ROS provides sensitive tool to predict positive pregnancy outcome in women undergoing ICSI
Study on Mechanical and Durability Properties of East Borneo Double Layer Porous Concrete Paving Block
Authors: Pranoto Yudi , Hashim Nor Fazilah , Tumingan . , Purbaningtyas Daru
Published: October 2023

Massive infrastructure development in East Borneo has reduced the water catchment area. One of the efforts to overcome this is by implementing porous paving with superplasticizer and local materials to improve quality, overcome material scarcity, and save costs. The purpose of this study was to determine the best layer variation of porous paving using Palu and Senoni materials with variations of 1/4, 1/2, and 3/4 of Senoni aggregate. In this study, the test object was made in the form of a beam with a quality of concrete planned at K300 MPa according to the compressive strength, flexural strength, porosity, and permeability values tested at the ages of 7, 14, 21, and 28 days. Based on the results, the variant layer of 1/4 Senoni obtained maximum compressive strength, flexural strength, porosity, and permeability of 17.306 MPa, 3.984 MPa, 18.120%, and 0.216 cm/second at the age of 28 days, respectively. Thus categorized this combination as C quality. Which was included in the C quality group with an application as a pedestrian area. According to the permeability result, double-layer porous paving can accelerate water absorption on the surface to prevent waterlogging when it rains. The increasing variation of layers in double-layer porous paving affects the compressive strength, flexural strength, porosity, and permeability. Doi: 10.28991/CEJ-SP2023-09-012 Full Text: PDF
FEATURES OF DEVELOPMENT OF AN INFORMATION SYSTEM FOR A NETWORK OF ELECTRIC VEHICLE CHARGING STATIONS
Authors:   Bauman Moscow State Technical University, Shapovalova Marina S. , Andreev Aleksandr A. ,   Bauman Moscow State Technical University, Chuvashova Valeriya V. ,   Bauman Moscow State Technical University
Published: October 2023

The article analyzes the technical requirements for electric vehicle charging stations from the perspective of determining the feasibility and features of designing an information system for their maintenance. The main features of the operation of electric vehicle charging stations are shown according to the standards adopted in Europe, the USA, and China. Their functional characteristics and specifics of remote control using an information system are considered. The article formulates requirements for an information system that can be created based on microservice architecture. It is shown that to ensure interaction between individual parts of the information system, its stable operation in 24/7 mode must be ensured. During the study, it was determined that: – customer-server interaction can be implemented through some application or web interface and should be stable and resilient; – this system will include a payment module, electric balancing while processing of incoming data on the server will represent a distributed information processing system based on a priority queue; – the information system itself should be designed based on an architecture implementing the client-server operating principle; – a special monitoring system should be distributed, allowing timely processing of incoming requests, identifying upsets and resolving them promptly
ON THE RESULTS OF THE 6TH ALL-RUSSIAN SCIENTIFIC AND PRACTICAL CONFERENCE “INFORMATION SECURITY. YESTERDAY, TODAY, TOMORROW”
Authors: Arutyunov Valerii V. , Grishina Nataliya V. ,   Russian State University for the Humanities
Published: October 2023

The article analyzes results of the All-Russian Scientific and Practical Conference held in Moscow at the Russian State University for the Humanities (RGGU), at which more than 20 reports from various scientific and educational organizations were heard. The reports dealt with general issues of information security, software and hardware methods of the information protection; prospects for the development of various areas of the information security were also considered. The topics of the plenary reports included: trends in the development of the information warfare in the context of global informatization, the risks of outsourcing and attracting contractors to the implementation of an information security system, the import-independence of the national ICT infrastructure: an ethical and engineering view, software and algorithmic support for assessing the destructiveness of telegram channels, modeling the evaluation of the effectiveness of the information security control system of open sociotechnical systems, issues of building a reliable enterprise information security systems, etc. The reports in three sections considered: features of ensuring the information security of critical information infrastructure facilities in the field of electric power, analysis of methods of hacking and destruction of a steganographic container in an image file, analysis of the consequences of a breach of personal data security from the standpoint of the intruder’s interests, testing models of analysis and forecasting of the information warfare in society in the simulation environment of Anylogic, etc.
ISSUES OF RISK MANAGEMENT IN THE FIELD OF INFORMATION SECURITY
Authors:   Financial University under the Government of the Russian Federation, Bakin Igor B. , Niyazova Kamilla Sh. ,   Financial University under the Government of the Russian Federation, Shvedova Sofiya M. ,   Financial University under the Government of the Russian Federation
Published: October 2023

The deals in issues of the risk management in the field of information security (IS). It considers the main factors that can lead to a violation of information security requirements, such as vulnerabilities in the system, human errors and actions of intruders, various approaches to IS risk management, including technical and organizational measures. Special attention is paid to the importance of the risk management system for business in general and for individual organizations in particular. The article offers practical recommendations for managing IS risks and evaluating the effectiveness of such a system. The results and conclusions presented in the article can be used to optimize the IS risk management system in organizations of various industries. An important aspect emphasized in the article is the ongoing adapting and updating the risk management system in information security according to the changing situation and technological development. Through the suggested recommendations and assessments of the effectiveness of the IS risk management system, organizations can improve their ability to prevent security incidents, minimize data loss, protect reputation and comply with legal requirements. Ultimately, an effective IS risk management system becomes an integral part of the business strategy, contributing to sustainable development and ensuring long-term success.
ON THE USE OF SUBJECT-ORIENTED ONTOLOGIES TO SUPPORT DECISION-MAKING IN THE PROFESSIONAL ACTIVITY OF A TEACHER
Authors:   Russian State University for the Humanities, Safronenkov Aleksei P. , Safronenkova Irina B. ,   Federal Research Centre the Southern Scientific Center of the Russian Academy of Sciences, Pavlenko Aleksandr E. ,   A.P. Chekhov Institute of Taganrog (branch of) Rostov State University of Economics
Published: October 2023

The work considers the issues associated with the organization of professional activity of a teacher in terms of automation of decision support. It carries out the analysis of the use of DSS (decision support system) in various fields of human activity. Results of the analysis showed that IDSS (intelligent decision support systems) are widely and effectively used in the field of Education, however, due to the diversity of areas of pedagogical activity, many issues remain unresolved at the moment. The work proposes to use such a class of systems to support the DM (decision-maker), i.e. the teacher, when choosing the optimal strategy or set of strategies aimed at improving the effectiveness of preparing the student to perform the tasks of the “Written part” of the Unified State Exam in English. The authors proposed using domain-oriented ontological models as the framework for the Knowledge Base (KB) of such a system. Due to the fact that the development of IDSS is a complex task, the purpose of the present work is to develop a subject–oriented ontological model of task evaluation criteria with a detailed answer “Personal email” of the Unified State Exam in the open ontology editor Protégé 5.6.1.
TIME SERIES FORECASTING OF COVID-19 CONFIRMED CASES IN TURKEY WITH STACKING ENSEMBLE MODELS
Authors: ÇILGIN Cihan , ÖZDEMİR Mehmet Ozan
Published: October 2023

Since COVID-19 has spread almost across any country and is a serious threat to mankind, it was declared to be a pandemic by WHO. Forecasting the results of a pandemic is a quite important and difficult task for policy makers and decision makers. The aim of this study is to forecast the daily case numbers in Turkey by using various time series modeling approaches. In this context, positive case numbers between March 11, 2020, and December 24, 2021, were taken into account in this study. This study, with the number of observations it covers, differentiates from other studies which have been conducted with few number of observations. In this study, all the waves during the COVID 19 pandemic were included in the analysis by studying a more extensive time period. Moreover, in our study, along with a comparison of machine learning algorithms by making case forecasting with these algorithms, increasing the forecasting performance was aimed by combining the predictions of all models used with the stacking approach under a single model. By taking all the related studies analyzed into account, our study, as far as we know, is the first one to assess this many model performances together and make a stacking model on COVID-19 case numbers. The findings obtained from the study prove that forecasting of the cases validated via the developed stacking model were made with high accuracy, and all ensemble learning approaches produce better results than individual methods.
Pengaruh Harga Internasional, Ekspor, Harga TBS, Dan Volume Produksi Biodiesel Terhadap Harga CPO Domestik
Authors: Gultom Gusti A , Krisnamurthi Bayu , Saragih Bungaran
Published: October 2023

The palm oil industry downstream program supports the development of new energy made from palm oil, namely biodiesel. Biodiesel is used as a blend for fuels such as diesel. One of the goals of developing the biodiesel industry is to produce new renewable energy sources so that it can reduce dependence on fossil energy. With the development of the biodiesel industry, Indonesia's consumption of crude palm oil (CPO) will increase. It is feared that this could lead to an increase in domestic CPO prices. This research was conducted to analyze the impact of developing the biodiesel industry on domestic CPO prices. The data used is secondary data in the form of annual data from 1997-2021. The research analysis used multiple linear regression which is processed with Ordinary Least Square (OLS). The variables in this research are international CPO prices, CPO export volumes, biodiesel production, prices of fresh fruit bunches (FFB), and productivity of oil palm plantations. The real domestic CPO price was significantly affected by international CPO prices, CPO export volume, FFB prices, and the productivity of oil palm plantations. Biodiesel production was not proven to have a significant effect on domestic CPO prices.
Kemampuan Komunikasi Matematis Siswa Kelas VIII Madrasah Tsanawiyah pada Materi Aljabar
Authors: Azis Bagus Abdul , Sudihartinih Eyus
Published: October 2023

Penelitian ini merupakan penilitian kualitatif dengan pendekatan studi kasus yang bertujuan untuk mendeskripsikan kemampuan komunikasi matematis siswa kelas VIII MTs pada materi aljabar. Partisipan penelitian ini adalah 6 siswa Madrasah Tsanawiyah di Kota Kotamobagu. Untuk mengetahui kemampuan komunikasi matematis siswa, dilakukan tes tulis sebanyak tiga soal esai, dokumentasi, dan wawancara. Hasil dari penelitian ini yaitu dua partisipan memiliki kemampuan komunikasi matematis rendah, tiga partisipan memiliki kemampuan komunikasi matematis sedang, dan satu partisipan memiliki kemampuan komunikasi matematis tinggi.
Perspektif Gender dalam Merancang Model Matematika
Authors: Khusna Hikmatul , Purnomo Bayu Arry , Awalludin Subhan Ajiz
Published: October 2023

Gender merupakan topik yang menarik untuk dibahas karena banyaknya perbedaan yang melekat antara laki-laki dan perempuan baik secara fisik, sifat, maupun perilaku. Penelitian ini bertujuan untuk melihat perbedaan pada gender dalam merancang model matematika pada siswa SMP di Tangerang. Pengumpulan data dilakukan dengan memberikan tes kemampuan pemodelan matematis yang kemudian dianalisis secara deskriptif oleh peneliti. Hasil penelitian ini menunjukan subjek perempuan lebih mampu mendeskripsikan masalah secara lengkap dan mampu memikirkan apa yang dapat dikembangkan dari masalah; dalam menyusun model matematika, subjek laki-laki mampu membuat persamaan matematika secara formal (model for), sedangkan subjek perempuan hanya menggunakan persamaan matematika secara informal (model of); karena subjek perempuan menggunakan persamaan matematika secara informal (model of) akibatnya subjek perempuan menggunakan aritmatika sederhana dalam work mathematically; karena subjek laki-laki menggunakan persamaan matematika secara formal (model for) akibatnya subjek laki-laki menggunakan metode eliminasi dan substitusi dalam work mathematically.
Upaya Pemerintahan Dalam Pembaruan Hukum Administrasi Perkawinan (Telaah Pandangan Euis Nurlaelawati)
Authors: Wijoyo Kasmoro
Published: October 2023

Marriage registration is one of the legal products issued by the government as an effort to respond to reforms in Islamic law, especially in the field of Islamic Family Law. This update has given rise to debate among experts and the public regarding the interpretation of the marriage registration regulations themselves. This debate ultimately has implications for the order of practice that occurs among society. Regarding the discourse regarding the interpretation of registration regulations, Euis Nurlaelawati has an understanding of thought patterns starting from aspects of interpreting marriage registration regulations as well as sociological aspects that occur in society. This research is operational by carrying out field research which explores information on the expert's understanding (Euis Nurlaelawati) regarding the issue of marriage registration, both the results of Euis Nurlaelawati's views expressed in book or journal form as well as conducting direct interviews with Euis Nurlaelawati. Researchers in analyzing Euis Nurlaelawati's views use progressive legal theory as a method in the legal sociology approach. The results of this research are that in Euis Nurlaelawati's view it falls into the category of progressive legal perspective. This can be seen when Euis Nurlaelawati, in understanding marriage registration regulations, does not only look at the text contained in the legislation but also looks at aspects that occur in upper society. Pencatataan perkawinan merupakan salah produk hukum yang dikeluarkan oleh pemerintah sebagai upaya merespon adanya pembaruan hukum Islam khususnya dibidang Hukum Keluarga Islam. Adanya pembaruan ini memunculkan terjadi perdebatan dalam kalangan para ahli, masyarakat dalam menafsirkan regulasi pencatataan perkawinan itu sendiri. Perdebatan ini akhirnya berimplikasi pada tatanan praktek yang terjadi dikalangan masyarakat. Atas diskursus terkait penafsiran regulasi pencatatan tersebut, Euis Nurlaelawati memiliki pemahaman pola pikir mulai dari aspek penafsiaran regulasi pencatatan perkawinan maupun aspek sosiologis yang terjadi dimasyarakat. Penelitian ini bereperasional dengan dilakukan dengan field research yang menggali informasi atas pemahaman ahli (Euis Nurlaelawati) terhadap isu pencatatan perkawinan baik hasil pandangan Euis Nurlaelawati yang dituangkan dalam bentuk buku ataupun jurnal serta melakukan wawancara langsung kepada Euis Nurlaelawati. Peneliti dalam menganalisis terkait pandangan Euis Nurlaelawati ini menggunakan teori hukum progresif sebagai metode  dalam pendekatan sosiologi hukum. Adapun hasil penelitian ini adalah bahwasanya dalam pandangan Euis Nurlaelawati masuk dalam katagori cara pandang hukum progresif. Hal ini terlihat ketika Euis Nurlaelawati dalam memahami regulasi pencatatan perkawinan tidak hanya melihat teks saja yang ada diperundang- undangan melainkan melihat juga pada aspek yang terjadi dimasyakat atas.