bluuebunny/crossref_metadata_2025 huggingface dataset:
Tribology Properties on 5W-30 Synthetic Oil with Surfactant and Nanomaterial Oxide Addition
Authors: Puspitasari Poppy , Permanasari Avita Ayu , Warestu Ayu , Arifiansyah Gilang Putra Pratama , Pramono Diki Dwi , Pasang Timotius
Published: September 2024

This study analyzes the tribological properties of 5W-30 synthetic oil with the addition of surfactants and oxide nanomaterials. This research used SAE 5W-30 lubricant base material with the addition of Aluminum Oxide (Al2O3), Titanium Dioxide (TiO2), and Hybrid Aluminum Oxide (Al2O3) - Titanium Dioxide (TiO2) nanomaterials. The nano lubricants were synthesized using a two-step method by adding nanomaterials by 0.05% volume fraction, followed by 50 ml of 5W-30 synthetic oil and polyvinylpyrrolidone (PVP) surfactant by 0.1%. Then, it was stirred using a magnetic stirrer for 20 minutes, followed by an ultrasonic homogenizer process for 30 minutes. Further, the nanolubricant was tested to identify its thermophysical properties, including density, dynamic viscosity, and sedimentation. It also underwent tribological testing, including wear, coefficient of friction, and surface roughness. Further, the nanomaterial was characterized using SEM, XRD, and FTIR. The morphological analysis using SEM suggested an irregular shape of the Al2O3 nanomaterial surface, while TiO2 has a spherical shape. Besides, phase identification with XRD testing showed corundum and anatase phases. Functional group analysis through the FTIR showedthe presence of Ti-O and Al-O. The highest density and viscosity results without surfactants were obtained in hybrid nanolubricant 779 kg/mm3 and 0.0579 Pa.s, while the use of surfactants resulted in 788.89 kg/mm3 of density and 0.0695 Pa.sviscosity. Tribological gray cast iron FC25 results in the best COF value observed in SAE 5W-30 + PVP-TiO2 lubrication (0.093). The lowest wear mass without surfactant was obtained in the Al2O3-TiO2 nanolubricant hybrid (0.02 grams), the lowest surface roughness in a mixture of PVP and TiO2 surfactants was 0.743 μm. Meanwhile, the surface morphology of gray cast iron FC25 with hybrid nanolubricant SAE 5W-30 (Al2O3-TiO2) and Nanolubricant SAE 5W-30+ (PVP-TiO2) produced the smoothest surface.
A Review of Properties, Engine Performance, Emission Characteristics and Material Compatibility Biodiesel From Waste Cooking Oil (WCO)
Authors: Suherman Suherman , Abdullah Ilmi , Sabri M. , Turmuzi Muhammad , Silitonga Arridina Susan , Dharma Surya , Yusfiani Marnida
Published: September 2024

Biodiesel is one of the renewable energy sources, non-fossil. The chosen feedstock should ideally be low-cost. Using waste cooking oil can reduce synthetic biodiesel's price by up to 70%. However, biodiesel has the advantage of lower heating value and higher density, causing increased fuel consumption and NOx emissions. Biodiesel has physicochemical properties such as a more significant cetane number than fossil diesel, a high flash point, and the absence of sulfur. This study identifies the potential availability of WCO as biodiesel and summarizes recent studies on the physiochemical properties of WCO biodiesel. This study also aims to clarify the use of WCO biodiesel on engine performance and exhaust emission characteristics (H.C., CO, CO2, NOx) when this biodiesel is used. Engine type and biodiesel ratio were identified for all articles. This study also discusses the effect of adding nanoparticles on engine performance and exhaust emissions in WCO biodiesel. This study also clarifies material compatibility (corrosion, wear, and friction). The corrosion rate in various types of materials and corrosion testing methods. Finally, this paper presents the opportunity for WCO biodiesel to be very feasible to reduce fossil diesel use.
Low Pass Filter as Energy Management for Hybrid Energy Storage of Electric Vehicle: A Survey
Authors: Maghfiroh Hari , Wahyunggoro Oyas , Cahyadi Adha Imam
Published: September 2024

The transportation sector contributes up to 35% of carbon dioxide pollution. Electric Vehicles (EVs) offer a pollution-free alternative but face a crucial challenge in their battery-based Energy Storage System (ESS). The solution to the battery issues is combining it with other ESS with high power density called a Hybrid Energy Storage System (HESS). Energy Management Strategy (EMS) is used to distribute the power demand in the HESS. Low Pass Filters (LPFs) are one type of EMS that can be used to ensure the smooth flow of power between different energy storage elements. This article focuses on the pivotal role of Low Pass Filters (LPFs) within HESS for EVs, facilitating seamless power flow. The novelty lies in the comprehensive review of LPFs in this context, shedding light on their impact on energy management. Four LPF architecture classes are discussed: fixed cut-off, optimal cut-off, adaptive cut-off, and combination, referencing prior research. Additionally, a critical examination of challenges and limitations is provided, offering insights for researchers and practitioners.
Recent Development in LiFePO4 Surface Modifications with Carbon Coating from Originated Metal-Organic Frameworks (MOFs) to Improve the Conductivity of Cathode for Lithium-Ion Batteries: A Review and Bibliometrics Analysis
Authors: Shieddieque Apang Djafar , Rahayu Iman , Hidayat Sahrul , Laksmono Joddy Arya
Published: September 2024

Using lithium-ion batteries has emerged as a viable approach to lessen the negative effects of fossil fuel use. LiFePO4 (LFP) is one of the lithium-ion batteries that are eco-friendly and safer than others. However, LFP has a main limitation with the poor rate performance due to its low electronic conductivity number. This study aims to present a bibliometric review of the analysis using VOSviewer of surface modification using carbon coating of metal-organic frameworks (MOFs) to improve the challenge of synthesis, structure, electrochemical stability, and performance of LFP. The results of this study showed that surface modification of LiFePO4 electrodes using carbon compounds produced from MOFs improved the efficiency of electrochemical energy storage and conversion technologies. High levels of porosity and customizable characteristics are offered by metal-organic frameworks (MOFs) ideal for surface modification which improves the battery conductivity. The bibliometric analysis showed that research on lithium-ion batteries is currently receiving attention, a sign of its significance and rising popularity. It is suggested for researchers especially Indonesian researchers to contribute more to this field.
Static Structural Analysis of Checking Fixture Frame of Car Interior Using Finite Element Method
Authors: Hanandita Hanif Setya , Ubaidillah Ubaidillah , Prabowo Aditya Rio , Lenggana Bhre Wangsa , Turnip Arjon , Joelianto Endra
Published: September 2024

An inspection is the most important step for the manufacturers producing their cars. This ensures the seamless compatibility of each car part, as even minor errors can lead to user discomfort during operation. To achieve that goal, the utilization of inspection tools, such as a checking fixture is essential. In this research, we will study the structure analysis of a checking fixture with Ansys software. This study aims to examine the structural strength by analyzing the impact of various design variations on the overall strength outcomes. The requirement for checking fixture is that it must meet the datum tolerance of the car with value of ± 2mm. Due to that factor, a rigid checking fixture is needed for inspecting the part without experiencing significant deformation. In static loading, the result of the first variation frame has a stress of 5.71 MPa and deformation of 0.051 mm, the second variation frame has a stress of 6.16 MPa and deformation of 0.049 mm and the third variation frame has a stress of 5.63 MPa and deformation 0.042 mm. In terms of weight, the first variation structure has 2470.48 kg, the second variation structure has 2179.93 kg and the third variation structure has 2210 kg. The second variation frame has the highest stress but it has the lightest weight, and the third variation frame has lower stress and deformation but it has a heavier weight than the second variation model. The study results that the second variation model is superior because it has the lightest weight while the three designs have small stress and deformation that still satisfy the requirement of the fixture.
Problemas de Sostenibilidad Turística en Espacios Protegidos: Banalización cultural del Barranco del Poqueira.
Authors: Pérez-Pérez Belén
Published: September 2024

Introducción: Este trabajo estudia las principales características del turismo en el Barranco del Poqueira para ver si responde a un modelo turístico sostenible y equilibrado que contribuye a la conservación del medio natural, social y cultural y es llevado a cabo por la población local. Para conocer los hábitos de alojamiento, restauración y compras de los turistas, así como su percepción del modelo turístico imperante y la acogida por parte de la población local. Metodología: se han utilizado técnicas de investigación social basadas en encuestas diseñadas en torno a una serie de ejes temáticos analizadas a través de estadística descriptiva y tablas de contingencia para estudiar variables cruzadas. Resultado y discusión: Se ha detectado que a pesar de que la población es amable con el turismo y que este repercute en la economía local, el modelo muestra signos de monocultivo económico donde las actividades tradicionales tienen una presencia residual. Conclusiones: Los turistas valoran el paisaje, la arquitectura tradicional y la cultural local pero se aprecia una significativa banalización cultural, ya que gran parte de la artesanía es de origen foráneo, donde los productos artesanales, menús locales y alojamientos rurales tienen cada vez un papel más residual.
Administracyjnoprawny charakter, status prawny i odpowiedzialność zastępcy wójta (burmistrza, prezydenta miasta) – wybrane zagadnienia
Authors: Romaniuk Paweł
Published: September 2024

Celem artykułu było poddanie analizie prawnej warunków kształtowania statusu i odpowiedzialności zastępcy wójta w gminie, co z punktu widzenia nie tylko judykatury, ale również i doktryny, wywołuje dość liczne spory i rozbieżne oceny. Zastępca wójta jest pracownikiem samorządowym, który jest zatrudniony w urzędzie gminy na podstawie powołania. Stosunek pracy zastępcy wójta przejawia się jednak brakiem stabilności zatrudnienia, uwzględniając możliwość odwołania go przez wójta w każdej chwili, w ramach przypisanej mu władzy dyskrecjonalnej. W pracy przeprowadzono weryfikację przesłanek formalnych, jakie powinien spełniać zastępca wójta oraz określono znaczenie roli, jaką powinien pełnić w gminie. Przybliżone zostały również dość istotne założenia de lege ferenda wprowadzenia m.in. do ustawy o pracownikach samorządowych, czytelnych i nie budzących wątpliwości uregulowań expressis verbis, w zakresie obowiązkowego powołania przez wójta swojego zastępcy i nadania mu konkretnych zakresów obowiązków.
Prawa językowe w świetle prawa międzynarodowego, unijnego i polskiego porządku prawnego. Zarys problematyki
Authors: Skorupa-Wulczyńska Aneta
Published: September 2024

Problematyka praw językowych zyskuje coraz większą uwagę badaczy głównie z uwagi na zmieniające się struktury społeczeństw, które są coraz bardziej wielokulturowe i wielojęzyczne. Celem artykułu jest określenie zakresu praw językowych wynikających z norm prawa międzynarodowego, unijnego i polskiego porządku prawnego. Przeprowadzone analizy pokazują, że prawo międzynarodowe zapewnia tylko częściową ochronę indywidualnych praw językowych. Ochrona ta dotyczy przede wszystkim sfery prywatnej, oraz językowych praw procesowych i prawa do nauki w języku mniejszości/języka mniejszości w sferze publicznej. Rozbieżne podejścia do praw językowych przyjęte przez państwa w ich ustawodawstwie sprawiają trudności w ustanowieniu wspólnych zasad dotyczących praw językowych i nie pozwalają na kompleksowe ich odzwierciedlone na poziomie międzynarodowym. Ochronę zapewniają przede wszystkim regulacje krajowe, choć dostrzec trzeba znaczenie standardów międzynarodowych, które coraz wyraźniej wyznaczają granice swobody państw w regulowaniu kwestii językowych. Analizy dowodzą, że zakaz dyskryminacji ze względu na język wykazuje największy zakres oddziaływania na uprawnienia językowe jednostek. Pełen zakres oddziaływania tego prawa wymaga jednak dalszych pogłębionych badań.
Podmiot społeczny jako przestrzeń działania administracji publicznej. Perspektywa personalistyczna
Authors: Wojtyła Wojciech
Published: September 2024

Celem artykułu jest prześledzenie personalistycznego sposobu rozumienia relacji pomiędzy osobą, społecznością i wspólnotą. Chodzi tu zwłaszcza o ukazanie tych założeń personalizmu, które pozwalają budować na nim określoną koncepcję życia społecznego, jako przestrzeni działania organów administracji publicznej. Refleksja ta wydaje się szczególnie ważna, gdyż administracja publiczna, jako sługa ustroju i aparat wykonawczy władzy państwowej, podatna jest na uleganie mechanizmom, które zamiast zabezpieczać pełny i wszechstronny rozwój podległych ich władztwu osób, na różne sposoby ograniczają ich twórczą podmiotowość. Tymczasem, w świetle założeń personalizmu, to właśnie twórcza podmiotowość, przekładana na takie kategorie, jak: kompetencje, kreatywność czy przedsiębiorczość, stanowi fundamentalne dobro wspólne każdej społeczności. Jej afirmacja stanowi zadanie i wyzwanie dla każdego szczebla administracji publicznej.
Índice de vulnerabilidad para COVID-19 por medio de análisis espacial a nivel cantonal en Ecuador
Authors: Cotera Mantilla Max , Sánchez Murillo Marco , Lalangui Karina
Published: September 2024

El establecimiento de índices de enfermedad a nivel espacial, en áreas geográficas específicas,con base en indicadores preestablecidos, permite inferir en la población y sustentar la tomade decisiones. Objetivo: establecer un índice de vulnerabilidad para COVID-19 por mediode análisis espacial a nivel cantonal en Ecuador. Metodología: por medio de un estudioexploratorio transversal, se calculó un índice de vulnerabilidad, a nivel cantonal, con unmodelo jerárquico aditivo compuesto y otro por componentes principales, basado en 13indicadores, en cuatro dimensiones: demográfica, epidemiológica, infraestructura de salud ysocioeconómica. Se utilizó un método de clasificación en quintiles, un quintil más alto denotamayor puntuación de vulnerabilidad relativa y se presentan los resultados por graficaciónespacial. Resultados: Se obtuvieron 2 tablas de los 221 cantones en el Ecuador, con las quese construyeron 2 modelos de vulnerabilidad con distintas valoraciones según cada cantón.Conclusiones: Se identificó y mapeó las comunidades que probablemente necesitarán unmayor apoyo durante el transcurso pandémico o endémico del brote actual de COVID-19, conbase en los puntajes obtenidos mediante el análisis espacial. En consecuencia, se consideróa Azogues, Quilanga, Piñas, Limón Indanza, Guayaquil, Girón, Sucúa, Loja, Machala,Flavio Alfaro, Quito y Portoviejo, como el 5 % de los cantones con “vulnerabilidad muyalta”, en el modelo aditivo. Mientras que Quilanga, Limón Indanza, Girón, Guayaquil, Lalibertad, Ambato, Catamayo, Guaranda, Olmedo, Durán, Esmeraldas y Pasaje, se presentan,en el modelo, por análisis de componentes principales, como el 5 % de los cantones de“vulnerabilidad muy alta”.
Functional status related to post-COVID 19 Syndrome in the nursing staff of a Second Level Hospital in Quito-Ecuador
Authors: Cuenca Jumbo Teresa Daniela , Loachamin Quinatoa Dylan Javier , Pastuña Doicela Rosa , Armas Freire Paulina Isabel
Published: September 2024

Introduction: Nurses are on the front line fighting against the COVID-19 and are at high risk of infection by direct patient care. Multiple factors determine the severity of this disease and along with persistent symptoms due to subsequent infection, affect the functional status of the infected nurses. General Objective: To determine the functional status related to the post-COVID-19 in direct patient care nurses at Hospital General Docente de Calderón during 2022. Method: The research has a quantitative approach with a descriptive, observational and cross-sectional design which determined the functional status related to the post-COVID 19 syndrome in 142 respondents. For this purpose it was used the Spanish version of Post COVID 19 Functional Status Scale, previously validated. Results: The average age of the participants was 36.8 years, 110 women and 32 men. Regarding functional limitations, 54.9% had no limitations, 16.9% had minimal limitations, 5.6% had mild limitations, 12.7% had moderate limitations and 9.9% had severe limitations. By exploring possible associations between variables, a significant relationship (p<0.005) was found between functional status with age and the number of infections. Conclusions: Although the largest percentage does not present functional limitations, it is worth noting that the 45.1% of nurses and auxiliary nurses, with minimal or severe functional limitations, continue to work in areas of medium or greater complexity. It constitutes an important input for the improvement of occupational health.
Relación ETCO2/PaCO2, herramienta al pie de cama para el manejo del síndrome de dificultad respiratoria aguda
Authors: Sarmiento Álvarez Jammil Emiliano , Paredes Luis Gustavo
Published: September 2024

La medición del volumen de espacio muerto en relación al volumen corriente (VD/VT) es una herramienta de pronóstico cada vez más relevante en el cuidado y monitoreo de pacientes del síndrome de dificultad respiratoria aguda (SDRA), sin embargo, aún es relativamente poco utilizada en la atención clínica de rutina, por lo cual ha sido necesario evaluar el uso de subrogados respecto al espacio muerto, accesible, de rápida medición a pie de cama, en este escenario la relación ETCO2/PaCO2 cumple un papel determinante en el seguimiento y comprensión de esta entidad. La relación anteriormente mencionada refleja el deterioro progresivo del intercambio de gases en sus dos componentes de oxigenación y ventilación, que funciona como marcador de gravedad y mortalidad en el SDRA, además de otras utilidades en el manejo del mismo, como la liberación del soporte ventilatorio e incluso en el retiro de oxigenación por membrana extracorpórea veno venosa (V-V ECMO). Este artículo ofrece un análisis actualizado acerca de la eficacia del uso de la relación ETCO2/PaCO2 en el tratamiento del SDRA.
Fisioterapia, ventilación mecánica y nutrición en paciente obeso crítico. Una revisión literaria
Authors: Díaz Menéses Noemi Georgina , Hidalgo Acosta Javier Aquíles , Villegas Torres Nancy Odalia , Rivadeneira Bello Xavier Antonio , Torres Ortíz Erick David , Campos Ordoñez Natalia Andrea , Vera Plaza Esther María , Vera Alay Dennys Fabián
Published: September 2024

Introducción: Múltiples factores contribuyen a los resultados adversos y la mortalidad de la obesidad en UCI. La fisioterapia es un complemento importante en el tratamiento de la obesidad. La ventilación mecánica no invasiva se considera la terapia de primera línea en pacientes obesos, con insuficiencia respiratoria aguda posoperatoria. Objetivos: Realizar una revisión sobre la utilidad de la fisioterapia respiratoria, ventilación mecánica y nutrición en el obeso crítico. Objetivos específicos: Analizar la fisioterapia respiratoria en el paciente obeso y determinar los efectos de la ventilación mecánica en el obeso, valorar el manejo nutricional de la obesidad en unidad de cuidados intensivos. Materiales y métodos: Revisión sistemática con declaración PRISMA 2020 con 39 artículos de bases de datos como PUBMED, ELSEVIER, PMC de los últimos 5 años sobre el tema de investigación. Resultados: La fisioterapia respiratoria postoperatoria en pacientes sometidos a cirugía bariátrica demostró que los pacientes mejoraron con la ventilación mecánica, el IMC se asoció con aumento de la incidencia de delirium. En pacientes críticamente enfermos con obesidad con extubación, el uso de VNI redujo el fracaso de la extubación, dieta de 1,5 g de proteína/kg de peso corporal ideal/día fue superior en fórmula nutrición enteral rica en proteínas (37 %) y baja en carbohidratos (29 %) comparada al control, proteínas (25 %) y carbohidratos (45 %). Discusión: La nutrición es uno de los factores más importantes como la administración de dietas con mayor cantidad de proteínas que carbohidratos, la fisioterapia respiratoria y la ventilación mecánica son la piedra angular del manejo critico de los pacientes obesos, desde una posición adecuada en Trendelenburg invertido, hasta el manejo con ventilación mecánica no invasiva.
Abordaje neuroquirúrgico de aneurismas cerebrales. Presentación de dos casos clínicos
Authors: González Echeverria Kleber Eduardo , Murrillo Loor David Argenis , Villavicencio Quevedo Israel Luis , Cueva Jiménez Pio Joel , Vera Plaza Esther María , Chong Viteri Alfredo Guillermo , Hidalgo Acosta Javier Aquiles
Published: September 2024

Se define un aneurisma cerebral, como una dilatación que ocurre en la circulación arterial, dentro del cerebro y se clasifican en: saculares, fusiformes y micóticas. Epidemiológicamente en Ecuador, los aneurismas son más frecuentes en el sexo femenino con un 68%, presentándose en el 90% en forma de rotura aguda y hemorragia subaracnoidea (HSA). Esta investigación tiene como objetivo describir dos casos clínicos de aneurismas cerebrales y su abordaje neuroquirúrgico, por cuanto, se presentan los casos de dos pacientes de sexo femenino con aneurisma cerebral roto y hemorragia subaracnoidea, localizados en arteria comunicante anterior y posterior respectivamente, cuyo tratamiento neuroquirúrgico fue mediante clipaje quirúrgico con resultado exitoso.
Determination of optimal directions of the wave vector of the phase holographic grating in cubic photorefractive crystal
Authors: Naunyka V. N.
Published: September 2024

The dependence of the change in the components of the inverse permittivity tensor of a cubic photorefractive Bi12SiO20 crystal on the direction of the wave vector of holographic grating in the crystal coordinate system has been studied. It is shown that, when recording a phase hologram, the largest change in the refractive index of Bi12SiO20 crystal is attained when the holographic grating wave vector is oriented along symmetrically equivalent 111 directions. The maximum possible modulation amplitude of the refractive index of a holographic grating with the wave vector oriented along the 110 directions is found to exceed that in the case of orientation along the 100 directions. The components of the inverse permittivity tensor of Bi12SiO20 crystal were calculated taking into account that a phase hologram is recorded under linear electro-optic, photoelastic, and inverse piezoelectric effects.
The influence of chemical structure spacings on the fluorocopolymers nano-organization
Authors: Sokolova L. V. , Pronin D. S. , Politova E. D.
Published: September 2024

In ternary fluoropolymers Viton GFLT 600S and Viton GFLT 200S, more types of nanoformations with the size of 3–80 nm are found than in double SCF-26 and SCF-32, while their prehistory changes according to the X-ray diffraction analysis data in the region of large angles. This process is more influenced by the chemical structure of the junctions in the macromolecules than by the molecular weight. The complex and unequal character of change of dynamic viscosity of fluoropolymers with temperature increase is caused by multiple phase transitions. It is shown that fluorocarbon rubber SKF-32 does not transition to the viscous-fluid state up to ~190°C in contrast to three fluoropolymers due to intermolecular nanoformations of 5 nm in size, the strength of which is significantly higher than nanoformations of 3–4 nm in the latter. It was found that the rotational mobility of the TEMPO radical is determined not so much by the intermolecular distances in the disordered part of the copolymers as by the flexibility of the passing chains connecting the ordered formations into a single system.
Distribution of striped cancer Faxonius limosus in water bodies of Belarus
Authors: Alekhnovich A. V.
Published: September 2024

Faxonius limosus (Rafinesque, 1817) was first discovered in the rivers of Belarus in 1997. The striped crayfish spread along rivers originated in Poland. Currently, F. limosus is found in the Neman River and in all tributaries of the first and second orders within the borders of the Grodno region and the rivers of the Western Bug basin of the Brest region of Belarus. The striped crayfish colonizing new places moved upstream of the rivers: the maximum speed of spread was 20 km/year, and the average speed was 7–8 km/year. Males of older age groups appear first in new habitats. As a result of human activity, the migration of striped crayfish from the Neman basin to the Dnieper basin has been noted.
On exchange-correlation energy in DFT scenarios
Authors: Belhaj A. , Ennadifi S. E
Published: September 2024

Motivated by the considerable importance of material properties in modern condensed matter physics research, and using techniques of the Ne-electron systems in terms of the electron density nσe (r) needed to obtain the ground-state energy Ee0 in Density Functional theory scenarios, we approach the exchange-correlation energy Exc [nσe(r)] by considering the interelectronic position corrections Δr↑↑,↑↓ x = |δr↑↑ − δr↑↓| and Δr eiej6≠i c = λc |r − r′|−(Ne−1)−1 corresponding to the spin and the Coulomb correlation effects, respectively, through the electron-electron potential energy. Exploiting such corrections, we get approximate expressions for the exchange Ex [nσe] and the correlation Ec [nσe] functional energies which could be interpreted in terms of magnetic and electric dipole potential energies associated with the charge density nσe (r) described by inversesquare potential behaviors. Based on these arguments, we expect that such obtained exchange-correlation functional energy could be considered in the Local Density Approximation functional as an extension to frame such interelectronic effects.
Resource potential of Vorob’evy Gory geosystems: history, study, and prospects for development
Authors: Baraboshkina T. A. , Samarin E. N. , Averin I. V. , Zhidkov R. Yu. , Rakitina N. N. , Rod’kina I. A. , Rutskina V. S. , Lubkova T. N. , Lipatnikova O. A.
Published: September 2024

The article based on the methodology of interdisciplinary research solves the problems of retrospective analysis of the resource potential dynamics of geosystem components in the natural reserve located within the boundaries of the largest megacity of Eurasia to diversify the resource potential of the ecological-educational function of its territory. The unique experience of stable functioning of recreational territory is systematized synchronously with socio-economic development of Moscow urban industrial agglomeration based on complex studies. Additionally, some parts of its territory were studied in order to actualize scientific and educational tasks of higher school. The study is based on systematic approach to clarify the ecological state of the components of the environment. Local areas of different vector dynamics of geosystems of different genesis were identified. The role of natural and natural-anthropogenic factors (geological-geomorphological, ecological-geochemical, geodynamic, geophysical, anthropogenic, socio-economic) in the formation of geo-ecological features of the recreational potential of the conservation area of the urban environment is differentiated. The dynamics of the resource potential of the recreational cluster of the megacity occurs synchronously with the growth of the urban population of the urban-industrial complex and depends on the totality of socio-economic, cultural-historical, geo-ecological conditions and the synergetic vector of their interaction. The interdisciplinary approach based on the processing of databases, field observations and laboratory studies allowed the authors to improve the methodology of setting scientific and educational tasks within the framework of the implementation of the ecological-educational function of protected areas. Specially protected natural territories of megacity contribute significantly to the achievement of goals of stable urban development, preservation of biodiversity of territories and recreation areas, predetermining the creation of a comfortable environment for the inhabitants of large cities, contributing to the minimization of health risks for different gender groups of the population.
Seismicity of Morocco and simulation of 08.09.2023 earthuake consequnces with “Extremum” system application
Authors: Frolova N. I. , Gabsatarova I. P. , Suchshev S. P. , Malaeva N. S.
Published: September 2024

This paper reports the use of regional intensity attenuation equations for the territory of Morocco by modeling the impact of the destructive earthquake of September 8, 2023 in the country. The relevance of the study follows from the needed reliable estimates of possible loss due to earthquakes in order to aid the decision-making process for the response and the proper choice of a search and rescue strategy for the heavily affected settlements. The paper has for its goal the calibration of the “Extremum” system seismic intensity attenuation models for the territory of Morocco. Our study is the first to analyze the seismic intensity attenuation equations obtained by researchers at different times with a view to their applicability to near real time loss assessment for strong events occurring in the area of study. We investigate as well how the results of earthquake loss simulation are affected by regional damage matrixes. Computer simulation was applied to the assessment of the possible impact due to the September 8, 2023 earthquake using the “Extremum” system developed with authors’ participation.This paper provides preliminary results of modeling the impact of the Morocco earthquake, as well as an assessment of the convergence achieved by calculated and observed intensities for various intensity prediction equations obtained before for the Morocco and adjacent areas within the Alpine-Himalayan seismically active belt.
The effect of manganese and carbon on the mechanical properties of the welded layer of the bucket teeth of the Hadfield steel excavator
Authors: Posonskyi S.F.
Published: September 2024

The paper investigates the effect of the surfacing composition’s chemical structure (the manganese and carbon concentrations’ ratio) on the mechanical properties of the surfacing layer on Hadfield steel for increasing the durability of the products made from it, namely the excavator bucket’s teeth.  Two criteria, namely the impact toughness and wear resistance of the coating, were chosen as optimization parameters. The assessment of the impact strength of the deposited coating was carried out on the Sharpie samples on the pendulum copra, and the wear test was carried out according to the Brinly-Haworth scheme in the conditions of samples’ abrasion with quartz sand. Wear resistance of Hadfield steel, containing 1.1% C and 13% Mn, was taken as a unit of wear resistance in these experiments. To determine the optimal coating modes, the active experiment with the application of mathematical planning methods was conducted. The obtained response surfaces and graphs of equal output lines make it possible to establish the level of studied factors’ influence on the optimization parameter. In order to analyze the influence of given factors on the optimization criteria, scatter plots with histograms were constructed, which make it possible to determine the rational values ​​of the selected optimization criteria graphically - impact toughness and wear resistance of the coating
Power, Voice, and Agency: Empowering Adolescent Girls and Young Women through Multiple Interventions for Evidence-Informed Contraceptive Decisions
Authors: Karijo Evalin , Austrian Karen , Temin Miriam , Mbaye Mame Soukeye
Published: September 2024

This blog is part of a series in partnership with Population Council, Reproductive Health Supplies Coalition (RHSC), and Population Services International (PSI), to recognize World Contraception Day 2024.
Pembuatan batik tulis menggunakan zat warna alami kulit akar mengkudu dengan fiksator symplocos sp.
Authors: Mohamad Falahy , Widadi Zahir , Maghfiroh Maghfiroh
Published: September 2024

The fabric mordanting process usually uses chemicals. The use of chemicals can pollute the surrounding environment. In this case, simplokos leaves can be used as a natural mordant or fixator in the natural coloring process. Apart from that, the process of dyeing natural dyes tends to produce light colors. The process of deploying the 3 layers used in this research is expected to get better results. The dyeing method uses the technique of pounding noni root bark and simplokos leaves repeatedly in three layers of fabric samples, then letting it sit for one week with a dose of 1:3, namely 50g simplokos leaves and 150g noni root bark with the addition of 300 mL of water. The results of the research show that written batik cloth produces a pink print with an insignificant difference in color aging, but the third layer (basic) cloth sample produces a darker color than the other two cloths. In addition, the fabric experiences fading due to the difference in the appearance of final result between the fabric before and after malam removal.
Food company competitiveness determination using marketing monitoring
Authors: Tkachuk Hanna , Burachek Igor , Vyhovskyi Volodymyr , Sotnyk Anhelina , Buzhymska Kateryna
Published: September 2024

The study aimed to assess the market position of food enterprises and identify the key factors influencing consumer satisfaction with products. The study included a survey of 200 consumers and 50 business representatives, stratification analysis, Student's t-test and Fisher's test. The main results showed that product quality was the most important factor with a weight of 40%, while price had a weight of 25%, availability 20% and packaging 15%. Younger consumers (18-35 years old) prefer innovative and aesthetic products, while older groups value functionality and safety more. Consumers with higher education prefer environmentally friendly products, while consumers with secondary education are more likely to trust trusted brands. The analysis of professional differences demonstrated that business professionals focus on brand and price, healthcare professionals on health and safety, and educators on the value and educational impact of the product. In addition, the study found that women were significantly more likely to state that aesthetic and functional aspects of packaging were important compared to men, with average satisfaction levels of 4.5 and 3.8 respectively (p < 0.05). The study also determined that consumers with higher incomes are more likely to choose products with premium packaging and additional benefits. The conclusions highlight the need to adapt marketing strategies to meet the specific needs of different demographic groups, which will help to increase the competitiveness of food companies in the market. This research provides valuable information for food producers, improving consumer awareness and tailoring products to meet the needs
Life Cycle Assessment to Enhance Resilience of Maritime Infrastructure: A Conceptual Approach
Authors: Kļavins Aivis , Feofilovs Maksims , Romagnoli Francesco , Kirsanovs Vladimirs
Published: September 2024

The maritime sector is transitioning towards the ambitious targets of the European Green Deal, aiming to reduce net greenhouse gas (GHG) emissions by at least 55% by 2030 and achieve climate neutrality by 2050. This transition involves significant decarbonization efforts, particularly in ports which are key hubs for international trade and transportation. The incorporation of life cycle assessment (LCA) methodology helps evaluate GHG emissions across the full lifecycle of fuels (“Well-to-Wake”), guiding sustainable fuel use and infrastructure development, while building maritime infrastructure resilience involves integrating risk assessment of threats from natural disasters, cyber-attacks, terrorism, and other disruptions. Integration of the two approaches (LCA and Risk assessment) has the potential for building maritime infrastructure resilience and at the same time finding optimal strategies for meeting the sustainability goals. This paper reviews the current state of maritime sector towards meeting European Green Deal targets and analysis exiting research on building resilience of maritime infrastructure. Finally, based on existing findings in literature, the paper suggests integrating risk assessment within LCA, moving towards a probabilistic LCAs in maritime sector.
Adapting Large Language Models for Automated Summarisation of Electronic Medical Records in Clinical Coding
Authors: Bi Bokang , Liu Leibo , Perez-Concha Oscar
Published: September 2024

Encapsulating a patient’s clinical narrative into a condensed, informative summary is indispensable to clinical coding. The intricate nature of the clinical text makes the summarisation process challenging for clinical coders. Recent developments in large language models (LLMs) have shown promising performance in clinical text summarisation, particularly in radiology and echocardiographic reports, after adaptation to the clinical domain. To explore the summarisation potential of clinical domain adaptation of LLMs, a clinical text dataset, consisting of electronic medical records paired with “Brief Hospital Course” from the MIMIC-III database, was curated. Two open-source LLMs were then fine-tuned, one pre-trained on biomedical datasets and another on a general-content domain on the curated clinical dataset. The performance of the fine-tuned models against their base models were evaluated. The model pre-trained on biomedical data demonstrated superior performance after clinical domain adaptation. This finding highlights the potential benefits of adapting LLMs pre-trained on a related domain over a more generalised domain and suggests the possible role of clinically adapted LLMs as an assistive tool for clinical coders. Future work should explore adapting more advanced models to enhance model performance in higher-quality clinical datasets.
Exploring Large Language Models for Detecting Online Vaccine Reactions
Authors: Khademi Sedigh , Palmer Christopher , Dimaguila Gerardo Luis , Javed Muhammad , Buttery Jim
Published: September 2024

Social media offers a rich source of real-time health data, including potential vaccine reactions. However, extracting meaningful insights is challenging due to the noisy nature of social media content. This paper explores using large language models (LLMs) and prompt engineering to detect personal mentions of vaccine reactions. Different prompting strategies were evaluated on two LLM models (GPT-3.5 and GPT-4) using Reddit data focused on shingles (zoster) vaccines. Zero-shot and few-shot learning approaches with both standard and chain-of-thought prompts were compared. The findings demonstrate that GPT-based models with carefully crafted chain-of-thought prompts could identify the relevant social media posts. Few-shot learning helped GPT4 models to identify more of the marginal cases, although less precisely. The use of LLMs for classification with lightweight supervised pretrained language models (PLMs) found that PLMs outperform LLMs. However, a potential benefit in using LLMs to help identify records for training PLMs was revealed, especially to eliminate false negatives, and LLMs could be used as classifiers when insufficient data exists to train a PLM.
‘Omics-Based Digital Twins for Personalised Paediatric Healthcare
Authors: Wickramasinghe Nilmini , Ulapane Nalika , Zelcer John , Saffery Richard
Published: September 2024

Digital twins offer potential to enhance the precision and personalisation of healthcare delivery. As part of a collaborative project between La Trobe University and the Murdoch Children’s Research Institute, Melbourne, Australia, multidimensional ‘omics-based digital twins of children are being developed. The aim is to explore their application to a range of health contexts in children. A pilot project is commencing that focuses on food allergy diagnosed at one year of age.
EDITORIAL
Authors: Lage Allene Carvalho
Published: September 2024

EDITORIAL
ESCREVIVÊNCIA PARA ASSOMBRAR A COLONIALIDADE DO PODER NO SISTEMA PENITENCIÁRIO
Authors: Gomes Erbs Cintra de Souza , Amaral Dayvison Herbety Araújo
Published: September 2024

Este artigo propõe-se a ser uma viagem introspectiva pela cartografia da vida, onde cada passo desenha um contorno no mapa da existência humana. Através de uma escrevivência que tece memórias, ancestralidades e resiliências, refletimos sobre as múltiplas camadas de uma realidade entalhada por lutas sociais, desafios educacionais e a incessante busca por dignidade. Engajamos em uma análise pós-qualitativa do sistema prisional brasileiro, traçando paralelos com os navios negreiros do passado. Argumentamos que, dentro deste contexto de privação, a educação emerge como um catalisador potencial para a ressocialização. Para tal, é fundamental engajar-se em disputas pedagógicas que vão além do cárcere, promovendo oportunidades para reparação social e histórica. O artigo visa discutir alternativas para desmantelar a colonialidade do poder incrustada no sistema penitenciário brasileiro, enfatizando a educação como um processo vital para a ressocialização.
PERFORMATIVIDADE, AVALIAÇÃO EDUCACIONAL E TRABALHO DOCENTE
Authors: Bezerra Andrade Francisca Rejane , Da Cruz Costa Antônia Rafaela
Published: September 2024

Este artigo objetiva demarcar como o estímulo à competitividade, o ranqueamento e a cultura de responsabilização (accountability) se faz presente no Sistema Permanente de Avaliação da Educação Básica – SPAECE e impacta a gestão do trabalho docente no Estado do Ceará. Para tanto, projetamos uma linha conceitual sobre a performatividade referenciada em Stephen Ball (2001; 2002; 2004; 2005; 2006; 2010; 2012; 2013), inserindo-a em um marco teórico que contribui para compreendermos como a lógica performativa na educação se mostra disciplinadora e produtora de novas subjetividades no trabalho docente e, sobretudo, do professor da escola pública. Para tanto, tomamos a racionalidade performática presente na avaliação em larga escala do SPAECE como fundamento para as reflexões empreendidas neste artigo, buscando identificar os efeitos de seu processo na política de avaliação educacional do estado do Ceará. Concluímos que a lógica performativa que se faz presente na gestão do trabalho docente e na organicidade dos conteúdos molda sistematicamente a avaliação dos estudantes cearenses.
PARADOXICAL PHENOMENA AND PROPERTIES DISCOVERED IN EMULSIONS
Authors:   Park Avenue LLC. Chelyabinsk, Russia, Martynovskiy Leonid
Published: September 2024

В настоящей публикации автор возвращается к вопросу о трёхмерной гидравлической памяти формы в эмульсии , полученной по изобретённому им комплексному методу и на изобретённом им для этого многофункциональном аппарате Испытания технологии и аппарата производились на эмульсии типа , - вода – в – масло , где в качестве масла использовалось дизельное топливо № 2 и в качестве воды - обычная питьевая вода с концентрацией солей жёсткости в пределах 200 милиграмм на литр При формировании испытательного стенда учитывались новейшие тенденции применения эмульсий в качестве топлива как на современных дизельных двигателях так и на дизель – генераторах , индустриальных бойлерах и турбинах ; Кроме того при комплексном формировании надсистем и подсистем испытательного стенда с управлением и контролем с применением элементов искусственного интеллекта и искусственных нейронных сетей учитывался уникальный инновационный опыт и учитывались характерные и глубокие профессиональные публикации выдающегося специалиста и эксперта в этой и смежных областях термодинамической умной техники , - Николая Серюкова ; Для дизельных двигателей и бойлеров наиболее трудным в процессе впрыска и сгорания топлива является разделение потока топлива перед насосом высокого давления , когда большая часть потока топлива направляется в насос высокого давления ( сегодня давление составляет 2000 бар и более ) после чего впрыскивается в камеру сгорания бойлера или в цилиндры двигателя , а меньшая часть возвращается в топливный бак
Schmidt, Eric, Cohen, Jared: The New Digital Age
Authors: Karel Sál
Published: September 2024

Schmidt, Eric, Cohen, Jared: The New Digital Age: Reshaping the Future of People, Nations and Business. 1 st ed. New York: Knopf, 2013, 315 stran, ISBN 978-0-307-95713-9.
Od institucionální k environmentální efektivitě: nový směr v přístupu mezinárodních vztahů k analýze mezinárodní politiky životního prostředí
Authors: Jehlička Petr
Published: September 2024

Gabriela Kütting: Environment, Society and International Relations: Towards More Effective Environmental Agreements. London, New York: Routledge, 2000, 173 stran, ISBN 0-415-21466-1.
Další kniha o globalizaci
Authors: Stehlík Jiří
Published: September 2024

Zygmunt Bauman: Globalizace. Důsledky pro člověka. 1. vydání. Praha: Mladá fronta, 2000, 157 stran, ISBN 80-204-0817-7. Signatura knihovny ÚMV 47 354.
Estimasi populasi orangutan Kalimantan (Pongo pygmaeus Wurmbii) berdasarkan sarang di kawasan konsesi PT Alam Sukses Lestari Kalimantan Tengah
Authors: Lopa Nazar Nauval Barra , Yuslinawari Yuslinawari , Rawana Rawana , Kurniawan Muhamad
Published: September 2024

Orangutan kalimantan (Pongo pygmaeus) terbagi menjadi 3 subspesies diantaranya Pongo pygmaeus wurmbii, yang berada di Kalimantan Tengah. Keberadaan orangutan di habitatnya berperan penting bagi pengelolaan hutan lestari berkelanjutan, orangutan memiliki peran keterlibatan dengan konservasi perlindungan spesies lain dan menjaga keseimbangan ekosistem. Penelitian ini bertujuan mengetahui kelimpahan sarang P. pygmaeus wurmbii, mengetahui kepadatan sarang, dan menaksir estimasi jumlah individu dari populasi P. pymaeus wurmbii, berdasarkan temuan sarang di kawasan konsesi PT Alam Sukses Lestari, Barito Timur, Kalimantan Tengah. Dalam penelitian ini menggunakan metode transek garis (line transect). Terdapat 41 sarang orangutan yang ditemukan. Tinggi pohon sarang, tinggi sarang, diameter pohon setinggi dada, kelas sarang, posisi sarang, jumlah sarang yang ditemukan, panjang jalur transek, jarak sarang ke jalur, koordinat sarang, dan jenis pohon sarang merupakan parameter yang diamati. Hasil rata – rata tinggi pohon sarang seluruh transek adalah 10,9 meter, dengan rata – rata tinggi sarang 7,5 meter, dan diameter rata – rata sekitar 16,5 meter. Sarang kelas C dan D adalah kelas sarang yang ditemukan dalam penelitian ini, dan sarang posisi 1 menjadi dominan ditemukan. Pohon bersarang orangutan terdiri dari 15 jenis pohon yang didominasi oleh jenis bintangor dari famili Calophyllacae sebagai pohon tempat bersarang orangutan. Lokasi penelitian ini berada di kawasan konsesi PT Alam Sukses Lestari, Barito timur, Kalimantan Tengah seluas 19.060 ha. Panjang total garis transek dari 8 jalur line transect adalah 5.686 km. Populasi kepadatan orangutan di PT Alam Sukses Lestari didapat 0,3 Individu/km² atau 1 individu memerlukan 2,936  km², dengan jumlah estimasi populasi 65 individu berdasarkan perhitungan sarang yang ditemukan.