bluuebunny/crossref_metadata_2025 huggingface dataset:
Organocatalytic Asymmetric α-C-H Functionalization of Alkyl Amines
Authors: Deng Tianran , Han Xiang-Lei , Cheng Cheng , Liu Xiangyuan , Yu Yang , Gao Yuhong , Wu Keqiang , Li Zhenghua , Luo Jisheng , Deng Li
Published: October 2023

Catalytic enantioselective α-C–H functionalization of achiral amines could provide an ideal synthetic approach toward chiral amines. The alkyl amines constitute the most diverse and synthetically important class of achiral amines. However, the inert nature of the α-C–H of alkyl amines renders the activation of alkyl amines as carbanionic nucleophiles for catalytic asymmetric reactions an important yet unmet challenge. We describe here that N-arylidene alkyl amines could be activated as carbanions for asymmetric conjugate addition and Mannich reaction. In their own right, these results represent a new and generally useful approach to the synthesis of chiral α, α-dialkyl amines. More importantly, they highlight the enormous potential of N-arylidene amines as readily available and widely applicable synthons for the asymmetric synthesis of chiral amines.
In situ formation of a melt-solid interface towards stable oxygen reduction in protonic ceramic fuel cells
Authors: Feng Desheng , Li Mengran , Peterson Vanessa K , Lin Rijia , D'Angelo Anita , Marenych Olexandra , Yago Anya , Yazid Bin Zulkifli Muhammad , Gao Shuai , Zhu Tianjiu , Wu Yuming , Zhu Zhonghua
Published: October 2023

Protonic ceramic fuel cells (PCFCs) are one of the promising routes to generate power efficiently from various fuels at economically viable temperatures (500-700 °C) due to the use of fast proton conducting oxides as electrolytes. However, the power density and durability of the PCFCs are still limited by their cathodes mostly made from solid metal oxides, which are challenging to address the sluggish oxygen reduction reaction and susceptibility to CO2 simultaneously. Here, we report an alternative approach to address this challenge by developing a new melt-solid interface through the in situ alkali metal surface segregation and consecutive eutectic formation at perovskite oxide surface at PCFC operating temperatures. This new approach in cathode engineering is successfully demonstrated over a lithium and sodium co-doped BaCo0.4Fe0.4Zr0.1Y0.1O3-δ perovskite as the model material. Our experimental results unveil that the unique in situ formed melt-solid surface stabilises the catalytically active phase in the bulk and promotes catalytically active site at surface. Our novel engineered melt-solid interface enhanced the stability of the cathode against poisoning in 10% CO2 by a factor of 1.5 in a symmetrical cell configuration and by a factor of more than two in PCFC single cells.
Sodium Carbonate ion complexes modify water structure at electrode interfaces
Authors: Dodin Amro , Deng Gang-Hua , Rebstock Jaclyn A. , Zhu Quansong , Limmer David T. , Baker L. Robert
Published: October 2023

Water structure near electrode interfaces may play an important role in controlling CO2 electroreduction. Using plasmon-enhanced vibrational sum frequency generation spectroscopy, we demonstrate the emergence of an interfacial water subpopulation with large electric fields along their OH bonds, when Na2CO3 ions are present near the electrode under applied potential. With molecular dynamics simulations, we show that the approach of aqueous Na2CO3 to electrodes is coupled to the formation of structured and oriented ion complexes, and that the emergent water population is associated with the first solvation shell of these complexes. This water subpopulation is seen even when the sole source of CO3 is its in-situ generation from CO2, indicating that the interfacial species investigated here are likely ubiquitous in CO2 electroreduction contexts.
Competing gender discourses: A multi-modal analysis of gender representations and femininity in a philippine magazine
Authors: Katrina Ninfa Topacio
Published: October 2023

Recent studies in gender representation tackle issues that no longer deal with the under representation, invisibility, powerlessness, and silence of women in the media. Hence, it is aim of this study to analyze women's representation in a new light following the principles of feminism of difference. This study sought to prove that competing gender discourses and the notion of varying femininities are discursive practices that can be observed as strategies in representation in modern magazines. To prove this, multimodal analysis was used to analyze the verbal and non-verbal text of the magazine in question. Moreover, feminist critical analysis was applied to see how the use of diverse and competing discourses in the magazine are intertwined with the text producer's consumerist agenda. The analysis also shows how seemingly neutral or harmless discussions about feminine activities are actually embedded with biased ideologies about gender. A critical discourse analysis is deemed important in raising the awareness of readers regarding this manipulative process. It is through a critical look into language and discourse that one may find how unequal power relations do exist in social discourse.
Estudio del caso Iturrate - Ortiz: crimen y castigo y su representación en un poema anónimo del siglo XVIII en el Nuevo Reino de Granada
Authors: Carriazo Osorio Ernesto
Published: October 2023

Este Working paper saca a la luz del conocimiento un manuscrito poético inédito del siglo XVIII que narra, en versos de arte menor, el asesinato del secretario del virrey del Nuevo Reino de Granada en 1780. Este objeto de estudio constituye la primera parte de una extensa elegía cuya conclusión ya fue estudiada y publicada en la década de 1970 y se concentra en describir el castigo a los delincuentes. Como pregunta de investigación, el trabajo indaga cómo este inédito artefacto literario representa la violencia en el Nuevo Reino de Granada. Se explora, además, cómo reputados historiadores y académicos describen las características socioeconómicas de la época para relacionar y entender mejor el contenido del poema con el contexto social en el que se inscribe. Como sustento teórico, el texto retoma la noción freudiana del unheimlich para discutir sobre la perplejidad que produce ver tratado un tema tan macabro en una forma poética. También se consideran las observaciones de Michel Foucault sobre el castigo y la función de los cuerpos sobre los que éste se inflige. Finalmente, se discute el aporte del historiador William Cronon quien reconoce el poder de silenciar unas voces y privilegiar otras, según la agenda ideológica de quien crea o narra una historia. Como conclusión, se observa el fuerte papel de la religión en la incorporación del perdón y la misericordia divina como ingrediente fundamental para mitigar la severidad del castigo. Se propone que tal elemento de fe forma parte protagónica de la narración como una forma de expiar el hecho de que el castigo sea aún más cruel y descarnado que la forma como se describe el crimen mismo.
Discussion of International Association for the Study of Pain (IASP) pain definition: What has changed in 2020?
Authors: Özkara Yılmaz Buket , Aydın Emre
Published: October 2023

International Association for the Study of Pain (IASP) assigned a committee for setting a definition of pain, in year 1979. Despite many criticisms and suggestions, the definition introduced in year 1979 has been kept almost unchanged, except for the slight changes made in years 1986, 1994, and 2011. Since the criticisms from various philosophical and scientific disciplines increased in the recent period, the association assigned a team of 14 researchers and clinicians, who were at the forefront in their disciplines, in year 2018 to revise the definition. Slight modifications were suggested for the definition and explanation in year 2020. In this paper, the definition of pain suggested in year 2011 is examined first. Then, the alternative definitions and criticisms from the scientific and philosophical actors are discussed and, finally, the criticisms addressing the definition proposed in 2020 are reviewed after assessing the definition.
Evaluation of the readability levels of patient information leaflets of frequently prescribed drugs in rheumatology practice
Authors: Ertürk Adem
Published: October 2023

The development and use of new drugs have accelerated in proportion tothe increase in understanding of the pathogenesis of rheumatological diseases. In the treatment of rheumatological diseases, regular and proper use of drugs prevents disease progression and protects the patient from potential exacerbations and complications. The readability of patient information leaflets (PILs) increases treatment compliance. In this study, it was aimed to evaluate the readability levels of PILs of frequently prescribed drugs in rheumatology practice. A total of 182 frequently prescribed medications in rheumatology practice were randomly selected. The PILs of these drugs were scored according to Ateşman and Bezirci-Yılmaz readability scales and their readability levels were thus determined. It was determined that the PILs could be read with 11-12 years of education and high school education on average according to Ateşman and Bezirci-Yılmaz readability scales respectively. Considering the fact that the mean schooling level in Türkiye is 6.5 years, the readability levels of the PILs of frequently prescribed medications in rheumatology practice are well above this level. It is suggested that the current readability of the PILs is adjusted in accordance with the patients’ level of understanding and education and arrangements to increase the readability levels are made.
Two-dimensional vs. three-dimensional vision during the laparoscopic radical prostatectomy: A matched comparison of operative and long-term functional outcomes
Authors: Baştuğ Yavuz , Aykan Serdar
Published: October 2023

Background/Aim: The three-dimensional (3D) display system can solve essential problems in conventional laparoscopic radical prostatectomy (LRP), like depth perception and spatial orientation. Several studies reported initial comparisons of LRP with 2D and 3D vision systems in terms of operative outcomes, with 3D systems coming out on top. However, there are few published comparison studies on the long-term outcomes of LRP with 2D and 3D vision systems. In this regard, we aimed to compare operative and long-term functional results of 3D-High definition (HD) LRP with conventional two-dimensional (2D)-HD display systems.
Methods: A total of 115 cases that underwent LRP between October 2010 and December 2016 were prospectively evaluated, and a prospective cohort study was conducted. Inclusion criteria at baseline were as follows: age at surgery <75 yr, prostate-specific antigen (PSA) concentration <20 ng/ml, clinical tumor stage <T4, no diagnosis of metastatic disease, and informed consent to participate in the study. Patients who underwent salvage treatments after LRP and patients with incomplete follow-up were excluded. The patients were divided into groups, Group 1 (n=72) and Group 2 (n=43), according to the display systems used, 2D-HD vs. 3D-HD during LRP. Demographic data, operative and postoperative, and long-term follow-up outcomes were recorded. Additionally, urinary continence rate determined with a patient questionnaire and erectile functions determined with the International Index of Erectile Function (IIEF) questionnaire were recorded. All obtained parameters were compared between the groups using the independent t-test and the chi-square test. Differences were considered significant at two-sided P <0.05 and 95% confidence interval.
Results: All patients completed a 24-month follow-up procedure. The groups were similar in age, serum PSA level, prostate volume, preoperative Gleason score, and cancer-positive core number. There were significantly better results in group 2 than in group 1 for operative parameters, catheterization time, and hospital stay (P<0.001, for all parameters). At long-term follow-up, the urinary continence rate was significantly higher in group 2 than in group 1 (P=0.023). Similarly, significantly higher IIEF scores were determined in the group 2 (P<0.001).
Conclusion: Our results suggest that using a 3D-HD display system during LRP provides much better long-term functional and operative outcomes and may provide a cheap and equal alternative to the RARP procedure.
POCHAMPALLY IKAT AND FASHION: REDEFINING TRADITIONAL TEXTILES FOR THE GLOBAL MARKET
Authors: Greeshma S. , Sadhna  , Kumar Rajesh
Published: October 2023

Indian fashion has been one of the largest contributors to the country’s economy with various traditional textiles. Pochampally Ikat is one of the traditional fabrics that is manufactured in Pochampally, Nalgonda District, Telangana. This is an exceptional fabric that is dyed even before it is woven. This fabric weaving follows the tie and dye technique where the yarns are dyed according to the designs and then taken to the weaving process. This uniqueness paved the way for the fabric to make an entry into the global market. After Independence, Pochampally ikat has made enormous growth with the support of various NGOs and the government. This paper will give insights into the history and process followed in weaving the Pochampally ikat. The paper also focuses on the support mechanisms, demand and supply, and its expansion into the global market. This also includes the threats, challenges, and opportunities of the fabric.
Clinical Trial: Management of Post-Haemorrhoidectomy Wound Healing by Bergamot Flavonoid-Based Gel and Sodium Hyaluronate: An Observational, Multicentric Trial
Authors: Cafaro Danilo , Onofrio Luciano , Sturiale Alessandro , Puglia Salvatore , Sinicropi Maria Stefania , Catalano Alessia , Naldini Gabriele
Published: October 2023

Objective: Haemorrhoidal disease (HD) is a very diffuse anorectal condition that involves a large part of the population, both male and female of every age. Among the procedures proposed to treat HD, conventional excisional surgery remains one of the most performed. Milligan-Morgan (MM) technique is one of the most used haemorrhoidectomy techniques. In this technique, the wounds are left open and re-epithelialization requires almost 3-5 weeks, in which patients generally experience pain and intense discomfort improving over the weeks.

Methods: The aim of this study was to evaluate the effect of topic administration of Benebeo Gel®, mainly composed by bergamot-derived flavonoids and hyaluronic acid, on post-operative wound healing after open MM haemorrhoidectomy. An observational prospective study was carried out, involving 205 patients aged between 18 and 75.

Results and Conclusion: The results after 2 weeks of treatment seem to be promising with a very good clinical outcome and patient satisfaction within 1 month.
Optimization of ITO/V2O5/Alq3/TPBi/BPhen/LiF/Al Layers Configuration for OLED and Study of Its Optical and Electrical Characteristics
Authors: Ritu  , Kattayat Sandhya , Sublania H. K. , Hashmi S. Z. , Singh Jasgurpreet , Alvi P. A.
Published: October 2023

Nowadays, OLEDs have shown aesthetic potential in smart cards, sensor displays, other electronic devices, sensitive medical devices and signal monitoring etc. due to their wide range of applications like low power consumption, high contrast ratio, speed highly electroluminescent, wide viewing angle and fast response time. In this paper, a highly efficient organic LED ITO/V2O5/Alq3/TPBi/BPhen/LiF/Al with low turn-on voltage and high optically efficiency is presented including electrical and optical characteristics. The simulation of electrical characteristics like current versus applied voltage, current density versus applied voltage, recombination prefactor versus excess carrier density characteristics and optical characteristics like light flux versus current density, light flux versus applied voltage and optical efficiency versus applied voltage has been explained. The physical design, working principle and thickness of different layers along with the process of formation of singlet and triplet excitons are discussed in detail. Here double electron transport layer (ETL), cathode layers are used to enhance the electrical and optical efficiency of OLED. The operating voltage is found to be ~ 3.2 V for the ITO/V2O5/Alq3/TPBi/BPhen/LiF/Al heterostructure based OLED. The designed organic LED has achieved the maximum optical efficiency at 3 V.
Implementation of PLC Outseal as a Controller of Ammonia Gas Circulation in Chicken Coops with HMI Modbus Monitoring
Authors: Ningrat Wahyu Cakra
Published: October 2023

Indonesia's population in 2022 is recorded at 275,361,267 people, significantly increasing per year which has resulted in an increase in food needs in the chicken meat sector, the high interest in chicken meat has not been accompanied by appropriate technology, this has made the quantity and quality of chicken breeders often experience crop failures the application of system technology for controlling and monitoring air quality in chicken coops based on PLC Outseal for ammonia gas is a technology used to reduce the death rate of chickens due to poisoning by ammonia gas produced from the chicken manure itself. The technology applied to chicken farms uses the Outseal PLC microcontroller as the design brain, Arduino nano as a sensor data storage communication, the MQ135 air quality detector by checking ammonia gas levels, monitoring through the HMI Modbus software on a bluetooth connection with control on a smartphone and removing dirty air by blowers. The parameter limit for the value of ammonia gas in the chicken coop is 20 – 40 ppm. The test result that the value of the ammonia gas content in the farm is above the specified value, the condition of the cage is excess ammonia gas and the automatic actuator functions to remove ammonia gas until the ammonia gas level value returns to normal.
The Effect of Work Motivation, Compensation, and Work Discipline on Employee Performance at PT Darma Panca Samudera
Authors: Soedarsono Bagas Estiawan , Rizqi Maulidyah Amalina
Published: October 2023

This study aims to determine the effect of motivation, compensation, and work discipline on employee performance at PT. Dharma Five Ocean. This study uses a quantitative approach. The sampling technique used a saturated sample with the number of samples obtained as many as 85 respondents . The population used in this study were all employees of PT. Dharma Panca Samudera. The data analysis technique used in this research is the multiple linear method. The results showed that the regression equation was obtained Y=8.715+0.428X 1 +0.541X 2 +0.461X 3 . The results of the analysis show that motivation has a significant positive effect on employee performance with a significant value of 0.05 or 0.026 <0.05. Compensation has a significant positive effect on employee performance with a significant value of 0.05 or 0.000 <0.05. Work discipline has a significant positive effect on employee performance with a significant value of 0.05 or 0.004 <0.05. It is recommended that to improve employee performance, management is expected to need to increase employee morale in carrying out tasks that are the responsibility of employees so as to improve work discipline and also improve employee performance. The management should provide increased benefits and incentives to employees so that they can improve the performance of employees in the company.
Penerapan Metode Fuzzy Logic-PID Sebagai Kontrol Gerak Robot Berkaki Enam (Hexapod)
Authors: Subur Joko , Suryadhi Suryadhi , Arohman Eki
Published: October 2023

Robotics technology is currently developing rapidly and has become one of the sophistications that are relied upon by every country, one of which is Indonesia. One of the activities for the development of robotics technology in Indonesia is the Indonesian Robot Contest (KRI). KRI was held as an event for students' creativity in designing robots. One of the divisions contested at KRI is the Indonesian Search and Rescue Robot Contest (KRSRI) division. In the KRSRI division, it is required to make a legged robot that can navigate the motion of walking in the competition area and pass obstacles on the track. Of course, a navigation motion control system is needed that can regulate the movement of the legged robot's steps properly, so that the robot can pass the path in the arena. In this study, the answer to this problem is the application of legged robot navigation motion control using the Fuzzy Logic-PID method. The Fuzzy Logic-PID method is a combination of two methods between the Fuzzy Logic Controller method and the Proportional Integral Derivative (PID) control method. The Fuzzy method’s role is to produce constant values ??P, I, and D based on the error value and the incoming error delta. Furthermore, the resulting constant value is used in the calculation of the PID control. From the experimental data, the Fuzzy method has been able to produce a PID constant value and the PID method can also be applied to regulate the robot's motion steps. The test results on trials using obstacles and without obstacles were successful, except for uphill obstacles with a success percentage of 60% successfully passing incline obstacles and 40% failing to pass uphill obstacles.
Sistem Peringatan Dini Bencana Banjir Berbasis IoT dengan Platform Firebase
Authors: Pamungkas Tri Dedi , Fitrizawati Fitrizawati
Published: October 2023

The firebase platform is one of the Io-T services created by google. This platform uses real-time internet-based communication. In principle, data is stored in one database and can be read by several devices simultaneously with certain conditions. Flood is a disaster that generally affects certain areas or areas caused by the overflow of river water that passes through the area. By reading the condition of the river water level at the overflow point for that area, the data can be used as a reference as a warning for potentially affected areas. Ultrasonic sensor with esp8266 microprocessor can be used as a data collector, and by applying the calculation of the speed of level change over time it can provide an estimate of the potential for flooding and the time. The data sent from this sensor is sent to the database as the main data. Every area that might be affected is installed with an esp8266 microprocessor and an audio player module as a warning of the possibility of a flood disaster. The microprocessor installed in this area is given access to read the main data continuously so that it can provide accurate information as quickly as possible.
Rancang Bangun Water Change Otomatis Berdasarkan Kekeruhan Air pada Aquarium dengan Penerapan Internet of Things (IoT) Berbasis Android
Authors: Wahjudi Dodi , Watiningsih' Tri , Adynata Pandega , Sukowati Irawan Dharma
Published: October 2023

Recently, maintaining ornamental fish has become a hobby in society, from the lower classes to the upper classes. Draining and filling water in the existing aquarium is still done manually. Many people like to keep fish confused if they travel far. No one may maintain fish properly. So, worrying about regular water changes. An important factor in keeping fish is the level of turbidity of the water. The turbidity level of water that can be tolerated by warm water fish is 25NTU (Nephelometric Turbidity Unit). So based on the above considerations, the researcher tried to submit a research proposal with the title "Design of Automatic Water Change Based on Water Turbidity in Aquariums with the Application of Android-Based Internet of Things (IoT). The developed system is expected to be able to maintain the level of water turbidity and replace water automatically in the aquarium so that it can increase the life expectancy of fish. The results of this study are that this system can effectively reduce the turbidity value of water in the aquarium. After being tested 10 times the system can keep the water turbidity level below the value that can be tolerated by warm water fish (25NTU).
Sistem Informasi Layanan Pengaduan Inventarisasi Jalan Berbasis Website
Authors: Widyaningrum Shiska Wahyu , Alfianti Pramesti Gita , Irianti Faizah , Siswanto Joko
Published: October 2023

There was a lot of damage to road equipment facilities that were no longer functioning. There are public complaints about the condition of damaged roads which seem to be ignored because of the unavailability of effective facilities for the community and government in dealing with the problem. The need for online media to submit reports and public complaints against road equipment facilities. The development of this application is based on a website about road inventory damage complaint services. The resulting features are in the form of a menu of road equipment explanations and complaint forms accessed by users. For admins can access the feature of registering incoming reports and responding to complaints. Designed using research methods (Extreme Programming) with stages of planning, design, coding, and testing.  The benefit of this application is that it makes it easier for the public to report damage to road inventory and helps stakeholders in knowing road information.
Analisis Kalor pada Pengeringan Garam dengan Alat Pengering Garam Berkapasitas 25 Kg/Proses
Authors: Prakoso Nur Ikhsan Yudha , Windarta Windarta , Maghfurah Fadwah
Published: October 2023

This study aimed to analyze the heat in a salt dryer with a capacity of 25 kg/process. The material used in this research is coarse salt, which is salt that has cystic grains with a larger size but tastes the same as ordinary salt in general. It has a larger and coarser texture than the salt we usually use, which is fine salt. The analysis was carried out by considering changes in temperature and specific heat. The results of the salt drying test with a capacity of 25 kg/process obtained an average heat transfer of 765.08 Joules. The average heat capacity obtained from the salt drying test is 19.106 J/°K. The average shrinkage of the water content is 6.6% according to the SNI 3556-2016 standard, which is a maximum of 7%. The average yield in the salt drying test process is 93.3%.
THE MODERN SYSTEM OF UKRAINIAN PERSONNEL DOCUMENTATION
Authors: Prokofieva K.A. , Reshetilova O.M.
Published: October 2023

The modern Ukrainian personnel documentation system includes complexes (subsystems, groups) of documents linked by information unity: legislative acts, normative and normative reference documentation, planning documentation, organizational and legal documentation, personal documentation, contractual documentation, executive documentation, accounting documentation, reporting and reporting and reference documentation. The widest in terms of types, content, form and volume of organizational, administrative, personal, contractual, primary accounting and reporting and reference documentation complexes ensure the implementation of the functions of the personnel service of each enterprise or institution in particular and personnel management at the state level in general. Separate sets of documents are intended to belong to different structural divisions or employees (personnel service, secretary-referent, accounting, etc.). This is explained by the distribution between them of typical areas of personnel management, which has developed historically. This division of functions and corresponding documentation is characteristic of the traditional – manual, clerical – document information processing system. Enterprises, institutions and organizations issue their normative documents on their basis, which do not contradict the current legislation. The formation of the information part and the form of personnel documents is based on state classifiers, technical, economic and social information, as well as unified documentation systems. Complexes of documents that accompany personnel work at enterprises, institutions, and organizations are characterized by a clear structure and content in accordance with the intended purpose, composition and subordination of the information indicators included in them – personal data.
SEARCHING FOR SOLUTIONS TO OVERCOME THE URBAN CRISIS
Authors: Razumova O.V. , Olifer D.O. , Dymkivska A.D.
Published: October 2023

Problem statement. Russia's full-scale attack on Ukraine led to an urban crisis that affected all aspects of life, including housing conditions, quality of life, ecology, unemployment, and urban competitiveness. The question about the future of the city is a question about the meaning of the city. Urban development is a key element of a country's stability and growth. Terrible events became one of the causes of environmental, demographic, and urban crises. To overcome them, it is necessary to develop programs that would encourage other countries to finance and invest in our state, create conditions for attracting migrants. The purpose of the article is to analyze the problems that arose as a result of the urban crisis and search for effective solutions to overcome them. Within the framework of the article, the trends of modern urban planning are considered and the aspects that need to be paid attention to when designing new or rebuilding old cities are substantiated. As a starting housing option for returning Ukrainians and foreigners, an innovative format for the reconstruction of “Khrushchev” buildings for rational use of space is proposed. Conclusions. Considering russia's influence on the urbanism of Ukraine and its pre-war state, it is difficult to determine the fate of the city, if even the country has not determined it. It is necessary to pay attention to the peculiarities of each city before rebuilding it. The main goal of a comfortable city is a high level of life quality, which means providing residents with the opportunity to have quality housing, free access to green areas and parks, cultural, educational and sports facilities, medical care and transport infrastructure. The concept of a “comfortable city” is a solution to the crisis after the return of peace and independence.
EXTREME SITUATIONS AT FACILITIES OF THE FUEL AND ENERGY COMPLEX: ASSESSMENT OF THE RISK OF HUMAN INJURY
Authors: Biliaiev M.M. , Berlov O.V. , Biliaieva V.V. , Tymoshenko O.A.
Published: October 2023

Problem statement. The task of assessing the zones of human damage in the event of an extreme situation at a gas station located in a crowded place in the city of Dnipro is under consideration. An analysis of the size of thermal air pollution zones and the zone of possible injury to people in the event of flying debris, created in the event of an extreme situation at a gas station, is being carried out. To solve the problems of this class, the development of specialized mathematical models is required. The purpose of the article. Assessment of the risk of injury to a person from the throwing action of debris and in the event of a fire at a gas station in the event of an emergency situation. Methodology. A numerical model based on the integration of Newton's second law for the movement of a material point in the air is used to analyze the damage zones during the flight of fragments. A computer program was created on the basis of this numerical model. Numerical integration of the energy equation is used to analyze thermal pollution zones during a fire at a gas station. This equation takes into account the speed of movement of air masses, coefficients of thermal conductivity, air temperature at the site of the fire. Scientific novelty. An effective numerical model has been developed for the analysis of damage zones from the throwing action of debris, which are formed in the event of an extreme situation at a gas station. Damage zones in the event of a possible fire at a gas station located in the city of Dnipro have been determined. Practical significance. A program has been developed for calculating the dynamics of the movement of debris in the air, which are formed in an extreme situation at a gas station. This makes it possible to determine the damage zones from the throwing action of fragments of different sizes. Zones of thermal air pollution are defined, which allow to assess the risk of thermal damage to people. Conclusions. An effective tool for analyzing the risk of injury to people in the event of flying debris and a fire at a gas station has been developed. The results of computational experiments are presented.
A COVERED SETTLEMENT ON THE MOON TAKING INTO ACCOUNT THE INTERNAL AND EXTERNAL EFFECTS OF POLARIZATION OF ITS SPACE
Authors: Vorobiov V.V. , Shylo O.S.
Published: October 2023

Statement of the problem. The basis of modern projects of settlements on the Moon, which are being developed by the countries of the space club, is the achievement of scientific and technical progress and the latest technologies in various fields of knowledge, including knowledge in the field of space medicine. This is considered objective, justified and rational. Information generation continues. More and more new sciences and opportunities for their practical application are emerging. This significantly affects the turn of the new lunar race. The competition for the development of the resources of our space neighbor is finding new facets. Ukraine participates in this marathon in cooperation with other countries. At the same time, PDABA does not remain aloof. Among the many questions that are being developed by its specialists, there is the question of accounting for fundamentally new approaches to the formation of rock-covered lunar settlements. For example, approaches to creating a geometric shape of a rounded lunar settlement based on accounting for the phenomena of internal and external polarization of the environment. This effect arises from the fact of the existence of any physical form (settlement), regardless of the materials from which it is created. It significantly affects the psychophysiology of the human body. The purpose of the article is to reveal the architectural and urban planning features of the formation of the lunar settlement based on the accounting of the phenomena of internal and external polarization of its environment.
INCREASING THE BEARING CAPACITY OF SOFT WATER-SATURATED CLAY SUBGRADES ROADS
Authors: Balashova Yu.B. , Demianenko V.V. , Usychenko O.Yu. , Tykvenko Р.А. , Balashov A.O.
Published: October 2023

Problem statement. The restoration and development of Ukraine's infrastructure, the elimination of the consequences of the destruction caused by hostilities, and the post-war reconstruction of the country require, first and foremost, the restoration of the road and aerodrome networks in Ukraine, as well as civil and industrial facilities. For the smooth operation of infrastructure facilities located in difficult engineering and geological conditions, it is necessary to increase the bearing capacity of the foundations on which the restoration, reconstruction, construction or overhaul of these facilities is planned. Increasing the bearing capacity of soft, water-saturated clay soils is performed by traditional methods such as the use of geosynthetic materials or lime, as well as new alternative methods such as the addition of biopolymers. The purpose of the article is to analyze foreign experience in the use of effective and environmentally safe materials for consolidating and increasing the bearing capacity of soft water-saturated clay soils and justification of the feasibility of their use in Ukraine based on laboratory studies of soils with the addition of lime and a biopolymer, xanthan gum. Conclusion. An analysis of foreign methods for the use of lime and biopolymers to consolidate and increase the bearing capacity of soft water-saturated clay soils was performed. Studies on the selection of the concentration of lime and biopolymers in the soil mixture were analyzed. Laboratory experimental studies were conducted on soft water-saturated clay soils with varying soil liquidity index and lime content of 2−4 % and xanthan gum content of 2−4 %. The research results showed a significant reduction in deformations of soft soils when they are fixed with biopolymer.
EVALUATION OF THE EFFECTIVENESS OF INFLUENCE CAUSED BY ULTRA AND NANO-DISPERSE ADDITIVES FOR MODIFICATION OF SULFATE PHASES AND SULFOALUMINATE PHASES
Authors: Derevianko V.M. , Hryshko H.M. , Vatazhishin O.V.
Published: October 2023

Problem statement. We offer stabilization of ettringite with the help of nanocomponents introduced. When conducting these studies, the problem of developing compositions of new construction materials based on gypsum and cement binder was solved by means of introducing nano-additives. Nanotechnology is a tool that allows you to reliably understand the processes that occur during hydration of composite materials, interaction of chemical and mineral additives with newly formed hydrated structures, formation and development of macro- and microstructure. The next stage in the effective application of nanotechnologies and techniques used in nanotechnologies for studying hydration processes and structure formation of gypsum- and cement-containing binding materials consists in the development of molecular models of hydration of Portland cement products. Creation of a high-strength cement frame is possible by adjusting the size of the solid phase and crystallization centers, as well as by modifying the gypsum- and cement-containing binder with ultra and nanodisperse additives. Purpose is to investigate effectiveness of ultra- and nanodisperse additives for modification of sulfate phases and sulfoaluminate phases. Conclusions. Modification of the compositions of radiation protection solutions of sulfate phases and sulfoaluminate phases with nanodisperse additives led to a decrease in the coefficient of linear expansion to 0.8 %. Herewith, an increase in solid indicators occurred by 8−12 %, which was caused by a change in the structure of neoplasms and the mineralogical composition. Thus, modification of the solution of sulfate and sulfoaluminate phases with carbon nanotubes (CNTs) leads to a decrease in the coefficient of linear expansion and an increase in the scattering coefficient of gamma rays by 30−40 % due to a high specific surface area of CNTs (80−120 m2/g). An optimal solution with the following composition has been experimentally developed: alumina cement, gypsum, BaSO4, nanotubes. It has been established that this solution has a 10−15 % higher water content, which is associated with the formation of ettringite during the process of setting and hardening. As a result, the arithmetic average amount of chemically bound moisture increased, which affected the change in the linear attenuation coefficient of ionizing radiation of the coating by 0.0088−0.009 cm-1. The total coefficient can reach 0,354 cm-1. Such results lead to reduced equivalent thickness (14,6 mm) of the radiation protective layer by 1−1,5 mm.
Pengaruh strategi PBL dan TPS terhadap kemampuan pemecahan masalah dan kemampuan komunikasi matematis
Authors: Simamora Dhara Chiltya , Nst Hikmah Maulida Sari , Luthfiah Dina Aulia , Nst Mas Berlian
Published: October 2023

Metodologi pembelajaran dan bakat siswa adalah dua hal penting yang terus sebagai fokus pengajar. Pemecahan masalah dan  komunikasi matematis merupakan dua keterampilan penting yang harus dimiliki peserta didik dalam pendidikan matematika. Problem Based Learning (PBL) dan Think Pairs Share ialah dua metodologi pembelajaran yang bisa dipergunakan untuk mengajar matematika (TPS). Oleh sebab itu, tujuan dari penelitian ini ialah untuk mengetahui pengaruh metodologi pembelajaran problem Based Learning serta  Think Pairs Share terhadap kemampuan pemecahan masalah serta  komunikasi matematis. Penelitian ini dilaksanakan pada kelas IX MTs Negeri dua Medan, dengan populasi sebanyak 178 siswa dan sampel sebanyak 60 siswa yang dipilih dengan memakai teknik cluster sampling. Alat yang digunakan merupakan tes keterampilan pemecahan masalah dan komunikasi matematis. Data diuji dengan menggunakan analisis varians dua arah dan uji t. Bila dibandingkan menggunakan teknik pembelajaran Think Pair Share, strategi pembelajaran berbasis masalah mempunyai dampak yang menguntungkan 7,264% lebih besar terhadap kemampuan pemecahan masalah siswa. Sedangkan hasil tes kemampuan komunikasi matematika menunjukkan bahwa tidak terdapat perbedaan pengaruh yang signifikan antara kedua metode pembelajaran tersebut.
Complications of sclerotherapy: methods of treatment and prevention
Authors: Korolova Kh.O. , Korolova Zh.V. , Teplyi V.V.
Published: October 2023

Objective — to study the frequency of complications of sclerotherapy (ST), their spectrum, to determine the effectiveness of the proposed methods of treatment and their prevention.
Materials and methods. The study involved 128 patients aged 18 to 65 years. The patients were divided into groups, depending on the concentration of polidocanol (0.5 and 1 %) used for sclerotherapy. Outcomes were assessed on the 2nd day, in 1 week, 1 month, 6 months, and 1 year after the procedure. The purpose of the assessment was to identify early and long-term post-procedural complications.
Results and discussion. In the group of patients in whom we used 1 % polidocanol, early complications such as edema and erythema and hemorrhages occurred statistically significantly more often (p < 0.05). The most frequent long-term complication of sclerotherapy was hyperpigmentation (32.8 % of cases), which occurred more often in patients in whom we used a higher concentration of sclerosant (p = 0.024). Hypopigmentation and scarring were extremely rare. During re-examination of patients with hypopigmentation 1 year after the procedure, 61.3 % of patients showed a significant decrease in hyperpigmentation, and in the remaining 38.7 % of patients, hyperpigmentation disappeared completely.
Conclusions. Local complications such as edema, erythema, hemorrhages, and hyperpigmentation occur more often when using 1 % polidocanol as a sclerosant compared to 0.5 % polidocanol (p < 0.05). Such early local negative manifestations as edema and erythema in the area of drug injection are transient and disappear without a trace in 100 % of patients within the first week after the procedure. The use of cosmetic cream with arbutin in the composition does not affect the reduction of hyperpigmentation in patients (p > 0.05).
Clinical effectiveness of combined topical remedy «Triderm» in treatment of chronic eczema
Authors: Sarian О.І.
Published: October 2023

Objective — evaluation of the effectiveness, safety and tolerability of the local remedy «Triderm» in the treatment of patients with chronic eczema (ChE).
Materials and methods. 30 patients with ChE aged from 25 to 47 years were examined. Among the patients, the diagnosis of true eczema (TE) complicated by secondary infection was established in 37.7%, microbial eczema (ME) — in 63.3 % of cases. A mild degree of severity of ChrE was established in 18 (60.0 %) patients (in 6 with TE, 12 with ME), moderate — in 12 (40.0 %) patients (in 5 with TE, in 7 with ME). Patients used the topical combined glucocorticosteroid «Triderm» twice a day for 14 days. The clinical effectiveness of the local drug was evaluated on the 7th and 14th days of treatment and on the 28th day after the start of therapy according to the dynamics of EASI (Eczema Area and Severity Index), visual analog scale (VAS) of itching, numerical rating scale (NRS) and Dermatological Index of Quality of Life (DIQL).
Results and discussion. As a result of the use of «Triderm», positive changes in clinical manifestations were achieved in all patients with ChE — clinical remission (decrease in EASI by more than 75 % from the initial state) was determined in 70 % of patients; significant clinical improvement (decrease in EASI by 50—75 %) and improvement of 30 % (decrease of EASI by 25—50 %), disappearance or significant weakening of itching (decrease in intensity of itching by 4.3 times according to VAS and 3.9 times according to NRS), significant improvement of quality of life (absence of disease impact on life in 76.7 % of patients). Faster improvement and regression of dermatosis, recovery of other dermatological indicators occurred with a mild degree, compared to a medium-severe one.
Conclusions. The use of the local combined drug «Triderm» which has anti-inflammatory, antibacterial and antimycotic effects, determines the high efficiency of chronic eczema therapy at various stages of the inflammatory process. The clinical effectiveness of «Triderm» allows it to be recommended for the topical therapy of dermatoses in the pathogenesis of which inflammation, bacterial and fungal flora are important (complicated true and microbial eczema, atopic dermatitis, etc.). The use of «Triderm» cream/ointment allows increasing the compliance, reducing the risk of developing unwanted reactions and interactions between active substances. The good tolerability of the drug and the absence of side effects indicate a favorable safety profile of the studied drug.
Experience of using phototherapy (IPL) for prevention and treatment of some dermatoaesthetic problems
Authors: Syzon О.О. , Dashko М.О. , Chaplyk–­Chyzho I.O.
Published: October 2023

Laser therapy is a complex of hardware procedures that involve exposure of the skin to light energy and allows getting rid of a number of skin imperfections.
Objective — to study the possibilities, effectiveness and expediency of using laser technologies to solve some dermatoesthetic problems in patients.
Materials and methods. The results of the therapy using the Nordlys device, the principle of operation of which is based on the theory of selective photothermolysis, were analyzed and presented. The Dermatology Life Quality Index (DLQI) was used to determine the effectiveness of the treatment.
Results and discussion. We observed 118 patients aged 18 to 65 years (42 men and 76 women) with different dermatoesthe­tic problems. The Nordlys narrow-spectrum IPL technologies were used to treat couperose, rosacea, acne and hyperpigmentation. As a result of the comprehensive treatment using laser therapy, the DLQI indicators statistically significantly improved in patients of all groups: in patients with couperose and rosacea — by 48.75 and 72.71 %, respectively, acne and post-acne — by 77.87 and 72.07 %, respectively, superficial and deep pigmentation — by 40.49 and 50.98 %, respectively (p < 0.001). Before treatment, only 30.51 % patients experienced a moderate impact of skin disease on the life quality, while 69.49 % patients noted a significant impact. However, after the combination treatment using laser therapy, only 11.86 % patients felt a significant impact of their skin disease on their life quality, while all the other 88.14 % patients noted a significant improvement in the life quality.
Conclusions. Laser therapy in the comprehensive treatment of patients with dermatological and aesthetic problems makes it possible to reduce the clinical manifestations of dermatoses, eliminate some factors of their development, and contributes to a probable (p < 0.05) improvement in quality of life.