bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spring-assisted posterior vault expansion in children over 2 years of age with craniosynostosis
Authors: Säljö Karin , Bhatti-Søfteland Madiha , Tarnow Peter , Olsson Robert , Hallén Tobias , Chao Wen-Chih , Kölby Lars , Maltese Giovanni 
Published: September 2024

Background: This study evaluated spring-assisted posterior vault expansion (SA-PVE) in children aged > 2 years with craniosynostosis and signs of high intracranial pressure (ICP).
Methods: We retrospectively analysed all consecutive patients aged > 2 years and operated with SA-PVE between 2018 and 2020 at the Craniofacial Center at Sahlgrenska University Hospital, Sweden. During the procedure, a circumferent occipital bone flap extending below the torcula was created and remained attached to the dura. Intracranial volumes (ICVs) were calculated from computed tomography (CT) images, and demographic data and information regarding symptoms and signs of high ICP were collected.
Results: The study included eight patients [Crouzon/Pfeiffer (n = 4), multiple craniosynostosis (n = 3), and secondary synostosis (n = 1)]. Median age at SA-PVE was 3.8 years (range: 2.5–12.8 years), and springs were removed after a median of 5.5 months (range: 2.3–8.3 months). The median operating time was 164 min (range: 102–221 min), and estimated blood loss was 4.5 mL/kg body weight (range: 1.4–59.1 mL/kg body weight), with 50% of patients receiving a blood transfusion. The median increase in ICV was 206 cm3 (range: 122–344 cm3) representing an 18.7% increase (range: 7.9–24.1%; p = 0.01). We observed no major perioperative complications, and symptoms related to high ICP were improved or absent at clinical follow-up.
Conclusion: These results demonstrated that SA-PVE involving creation of a large occipital bone flap including the torcula as a safe and effective surgical treatment in children aged >2 years with craniosynostosis and elevated ICP.
Maré de imagens
Authors: Aranha Dantas Joseane 
Published: September 2024

O cinema tem mantido relações muito próximas com as cidades desde sua invenção, e possui um vasto repertório de documentação no que diz respeito às mudanças na concepção da urbe. Para este artigo contemplamos filmes que colocaram em foco o espaço urbano, as contradições e disparidades socioespaciais geradas pelo processo de urbanização e pelo descaso político-econômico na cidade de São Luís nos anos 70. A configuração material e simbólica da cidade, as relações de disputas dos espaços urbanos, os conflitos, as dinâmicas causadas pela urbanização, foram representadas pelas lentes dos cineastas superoitistas maranhenses.
Houston Solar Marker Matrix of Intentionality
Authors: Houston Gordon 
Published: September 2024

Rock art is ubiquitous around the world. The first solar interaction with rock art was in 1979 by Ken Hedges (Hudson, et al. 1979). Solar Markers are the most objective interpretations of rock art for the following reasons: 1) We can see the sky the same as the ancient cultures, 2) Precession does not affect the travel of the Sun along the horizon, 3) The operation of solar marker interactions operate the same today as when originally created, and 4) The recorded astronomical knowledge is usually the most closely guarded information, which the solar marker opens that knowledge to us today.
The interplay of sun and shadow on rock art, known as “solar markers” are reported in very few areas of the world, with most being reported in the American Southwest. The lack of reports worldwide is due in part to a lack of understanding and how to identify these solar markers. To that end, the Houston Solar Marker Matrix of Intentionality (HSMMI) is offered as a tool for researchers to: 1) Help identify new solar markers, 2) Confirm existing solar markers, 3) Rule out coincidental interactions, and 4) lead to a worldwide database of solar markers.
. There are four qualifying restrictions that must be met by any reported interaction, before proceeding to evaluate an interaction using the HSMMI. The restrictions are: 1) The solar interaction must touch and interact with the glyph, 2) The interaction must be brief, typically less than 30 minutes, 3) The culmination of the interaction must be unique, both in the design of the sun or shadow shape, and must interact with the focal point or tangent of the glyph, or some very unique part of the glyph, and 4) The solar interaction must interact with one glyph at a time. These are established to help rule out coincidental interactions and help eliminate false positives.
The Houston Solar Marker Matrix of Intentionality provides and analytical tool in which four categories are scored. The final score determines the strength of an existing or reported solar marker or identification of a new solar marker. The four categories are 1) Solar Points, 2) Time of Day, 2) Interactive Characteristics, and 4) Supporting evidence. The HSMMI is a tool that will be employed by researchers, who in turn, will bring forward new reports worldwide, so a database can be established. The HSMMI is a tool in constant transition and updating, of which, many changes have already been incorporated to date. It is hoped that false positives will be eliminated through the use of the HSMMI.
Proving Bioactive Compounds and Antioxidant Activities of Ajuga remota Benth Leaves Extract: Impact of Ultrasonic Power, Sonication Time, and Conventional Extraction Parameters
Authors: Zerihun-Chala Meseret , Admassu-Emire Shimelis , Benjakul Soottawat , Worku-Dadi Debebe , Temdee Wattana 
Published: September 2024

Abstract

Ajuga remota Benth plant contains a variety of phytochemicals including phenolic compounds with potent antioxidant activities. However, in order to improve the extraction efficiency, green technologies need to be used while extracting bioactive compounds. Therefore, this study was aimed to determine the impact of ultrasonic power and extraction time on the extract yield, bioactive compounds and antioxidant activities of A. remota leaves extract. Ultrasonic assisted extraction (UAE) was employed at amplitude of 50, 60 and 70% with the sonication time of 10 and 20 min. The highest total phenolic content (44.14 mg GAE/g) and flavonoids content (126 mg QE/g), and antioxidant activities 100.11 mg TE/g, 263.97, mg TE/g and 286.19 mg TE/g for DPPH, FRAP and ABTS, respectively, were found at 70 % ultrasonic power with the extraction time of 10 min. Thus, UAE showed a significant (p<0.05) improvement of the extract yield, bioactive compounds, and antioxidant activities.
Mathematical Insights into Hydrostatic Modeling of Stratified Fluids
Authors: Bianchini Roberta , Ertzbischoff Lucas 
Published: September 2024

Abstract
We review recent mathematical results concerning the analysis of hydrostatic equations in the context of stably stratified fluids. Beginning with the simpler and better understood setting of homogeneous fluids, we emphasize the additional mathematical challenges posed by non-homogeneous framework. We present both positive and negative results, including well-posedness and proof of the hydrostatic limit with a suitable regularization, alongside ill-posedness in the fully inviscid setting and the breakdown of the hydrostatic limit in specific scenarios.
Investigating diverse photogrammetric techniques in the hazard assessment of historical sites of the Museum of the Coal Basin Area in Będzin, Poland
Authors: Świerczyńska Ewa , Karsznia Krzysztof , Książek Krzysztof , Odziemczyk Waldemar 
Published: September 2024

Abstract
Assessing the condition of historical sites at risk requires an interdisciplinary approach based on combining multiple measurement technologies. Due to the dynamic development of technology, non-invasive remote sensing methods are gaining significant importance. Among these techniques is photogrammetry based on images taken from unmanned aerial vehicles (UAVs) and those taken with a smartphone. In the study, the authors specified the possibilities and limitations of using remote photogrammetric methods to build accurate digital models of the walls of historic buildings with cracks in them. Point clouds, TIN grids, and façade orthophotos were examined. Statistical analysis was used to determine the repeatability of the data. Two parameters were identified that affect the accuracy of the data: the first – the direction of the segment between two points in the façade plane, and the second – the distance of the segment between two points in the plane of the façade. The study showed that the average accuracy of crack width measurements on the data acquired with the DJI Mavic 3 Enterprise RTK is 1 mm. Testing of crack width measurements using a Samsung Galaxy S20 FE smartphone showed an average absolute error of 0.24 mm. Based on the results, it was concluded that the imagesacquired using mobile devices can be used to determine changes in crack widths on walls.
"Gente en la isla": giros etnográficos en el estudio de la migración transnacional de jóvenes latinoamericanos residentes en Chiloé, Chile (2020-2023)
Authors: Saldívar Juan , Márquez Rodrigo , Boric Ljuba , Delgado Hernán 
Published: September 2024

El artículo presenta hallazgos etnográficos preliminares sobre las experiencias de la migración transnacional de jóvenes latinoamericanos residentes en áreas urbanas de Chiloé entre los años 2020 y 2023. El hilo conductor avanza hacia una reflexión sobre el territorio como un espacio multigeográfico que permite la circulación de cosmopolitismos en el contexto de un proceso multiescalar donde circulan las ideas, las prácticas y los recursos que llegan de afuera y se instalan adentro, resignificando de cierta forma las cotidianidades e identidades en el archipiélago. En este sentido, los recientes asentamientos de latinoamericanos se valen de estrategias creativas, diseñadas como mecanismos de integración, donde observamos la acción colectiva, la formación de comunidades, la resignificación de la noción de hogar y la creación de mercados transnacionales, categorías que permiten comprender la migración vivida en territorios subnacionales de Chile.
Tensiones entre legalidad e informalidad: una aproximación etnográfica a la intervención estatal nivel calle en asentamientos informales de la Región Metropolitana
Authors: Acuña Nicolás 
Published: September 2024

Desde el año 2011, el Programa de Asentamientos Precarios ha actuado en 142 asentamientos informales en la Región Metropolitana, lo que lo sitúa como uno de los principales mecanismos de intervención de las políticas de vivienda ante la crisis habitacional que actualmente afecta al país. A partir de la recopilación de información etnográfica durante el trabajo de campo realizado entre enero y marzo de 2023, el presente artículo aborda las prácticas de discreción desplegadas durante la ejecución del programa de intervención analizando la relación entre la formalidad/legalidad, representada por el estado, y la informalidad/ilegalidad, representada por el campamento, dicotomías que se tensionan en el quehacer en terreno de los burócratas nivel calle. El artículo argumenta que, en aquel intersticio, el estado se posiciona paradojalmente como garante y regulador de unainformalidad calculada. Asimismo, plantea que la aproximación etnográfica y su flexibilidad son clave en el abordaje de los dinámicos márgenes, límites y prácticas del estado.
Etnografiar el estado en Chile: contornos de un proceso
Authors: Valdivieso Diego , Rojas Carolina 
Published: September 2024

Con el objetivo de estimular el diálogo académico, este artículo presenta un análisis exploratorio de la etnografía del estado en Chile. Se ofrece un panorama de la evolución y las características de este campo mediante el estudio de proyectos de investigación, foros académicos y publicaciones científicas recientes donde sus autores se aproximan etnográficamente al estado. El artículo plantea que, siguiendo las tendencias regionales, la etnografía del estado en Chile se caracteriza por ser un campo heterogéneo y diverso, haciendo eco del desafío analítico de abordar el concepto de estado. Se destacan los límites difusos que desafían una delimitación precisa de la etnografía del estado como campo, lo que indica un área de estudio dinámica y en constante construcción, abierta a nuevas preguntas y debates y con la capacidad de permear las fronteras de las distintas disciplinas de las ciencias sociales.
Optimal PLA+ 3D Printing Parameters through Charpy Impact Testing: A Response Surface Methodology
Authors: Suryadarma Engelbert Harsandi Erik , Laksono Pringgo Widyo , Priadythama Ilham 
Published: September 2024

Additive manufacturing (AM) has revolutionized the manufacturing sector, particularly with the advent of 3D printing technology, which allows for the creation of customized, cost-effective, and waste-free products. However, concerns about the strength and reliability of 3D-printed products persist. This study focuses on the impact of three crucial variables—infill density, printing speed, and infill pattern—on the strength of PLA+ 3D-printed products. Our goal is to optimize these parameters to enhance product strength without compromising efficiency. We employed Charpy impact testing and Response Surface Methodology (RSM) to analyze the effects of these variables in combination. Charpy impact testing provides a measure of material toughness, while RSM allows for the optimization of multiple interacting factors. Our experimental design included varying the infill density from low to high values, adjusting printing speeds from 70mm/s to 100mm/s, and using different infill patterns such as cubic and others. Our results show that increasing infill density significantly boosts product strength but also requires more material and longer processing times. Notably, we found that when the infill density exceeds 50%, the printing speed can be increased to 100mm/s without a notable reduction in strength, offering a balance between durability and production efficiency. Additionally, specific infill patterns like cubic provided better strength outcomes compared to others. These findings provide valuable insights for developing stronger and more efficient 3D-printed products using PLA+ materials. By optimizing these parameters, manufacturers can produce high-strength items more efficiently, thereby advancing the capabilities and applications of 3D printing technology in various industries.
Medicamentos para todos: como a justiça pode garantir o direito à saúde?
Authors: Cavalcante Lima Leandro , Day Carrilho Bentes Lobato Ribeiro Krishina , Alberton de Lima Isaura 
Published: September 2024

O objetivo deste artigo é estabelecer critérios para o exame de pedidos judiciais de medicamentos no contexto da judicialização da Política de Assistência Farmacêutica (PAF). Tem-se por metodologia a proposição de uma taxonomia de critérios que distinguem situações de controle e revisão de atos da administração pública de interferência na política pública, com base na essencialidade do medicamento para o caso concreto. Medindo-se assim estudos temáticos feitos na área. Desta maneira, encontrados os critérios, eles são categorizados em princípios, critérios, indicadores e verificadores, identificados por meio da análise da literatura. Os resultados indicam que a taxionomia proposta permite analisar as demandas judiciais por medicamentos de forma mais abrangente e sistemática, destacando-se o uso racional do medicamento, a garantia, a segurança, a qualidade e a eficácia como meios de operacionalizar princípios que favorecem a entrega efetiva de uma prestação jurisdicional concreta. Ademais, o estudo observa que nem sempre a Judicialização de medicamentos de alto custo é responsável pelo aumento de demandas judiciais na área da saúde. Tem-se por conclusão de que a utilização de critérios para o exame de pedidos judiciais de medicamentos pode ser a melhor forma de garantir a justa e adequada aplicação da Política Nacional de Assistência Farmacêutica, socializando o custeio de demandas individuais quando necessário.
Clarifying baseline seismicity for a geotechnical survey site at Gross mining and processing plant
Authors: Grib N. N. , Kolodeznikov I. I. , Grib G. V. 
Published: September 2024

The Gross mining and processing plant under reconstruction is located in southwestern Yakutia, within a territory classified as earthquake-prone. According to the OSR 2015 map with indices A, B, C, the seismicity of the construction area is 9, 9 and 10 points MSK-64 scale, respectively.Despite significant research experience in clarifying the general seismic zoning, the issues of interpreting the source materials, as well as the results obtained, may be ambiguous. In confirmation of this, it can be noted that over the past 25 years four generations of general seismic zoning maps (OSR 97, OSR 2012, OSR 2015, OSR 2016) followed one another.The relevance of research is determined not only by the seismic safety of construction projects, but also by their economic component. Thus, 1-point seismic hazard increase entails 13% to 20% construction cost increase.The aim of the research is to specify the level of baseline seismicity for survey areas using the methodology of probabilistic seismic hazard analysis with respect to the regional seismotectonic conditions of the Gross mining and processing plant construction area.As a result of the analysis of materials from geodynamic active neotectonic zones, the presence of active structures capable of generating earthquakes with magnitudes М = 6.5 – 7.0 was established.A probabilistic assessment of the parameters of seismic impacts was carried out: macroseismic intensity (in MSK-64 points), peak accelerations and response spectra, for the case of earthquakes of the maximum possible magnitude Mmax, at the minimum possible distance R from the study area of ​​the projected construction of objects, was carried out using the EAST-2016 software.The specified level of seismic hazard for return periods of 500, 1000 and 5000 years are I = 8, I = 8.3 and 9.1 points MSK-64 scale, respectively.
COMPLEX MODIFICATION OF BITUMEN BINDERS WITH FUNCTIONALIZED POLYMER ADDITIVES
Authors: Полоник В.Д. , Наумова Ю.А. , Ковалева А.Н. 
Published: September 2024

Непрерывно возрастающие требования к долговечности автодорог требует применения модифицированных битумных вяжущих для производства асфальтобетонных смесей. Одним из способов повышения качества является использование полимерных добавок для модификации битума, среди которых наиболее актуальными являются функционализированные полимеры. Целью работы было установление эффективности применения функционализированных глицедилметакриалотом сополимеров этилена (НП ООО «Койда Нова», Республика Беларусь) при производстве битумных вяжущих. Проведены исследования физико-химических и эксплуатационных характеристики битумных вяжущих. Выполнена оценка их верхней температуры эксплуатации по классификации PG (Performance Grade), которая основана на методологии Superpave, согласно определению сдвиговой устойчивости по параметрам колееобразования и критической температуры эксплуатации. Установлено, что применение исследуемых добавок для модификации битума позволяет получать асфальтобетонные покрытия с повышенной стойкостью к образованию колеи пластичности. Использование данных модифицирующих добавок не требует изменения технологии получения битумных вяжущих и может успешно применяться на типовом оборудовании асфальтобетонных заводов или предприятий по производству модифицированных битумов.
The continuously increasing requirements for the durability of roads require the use of modified bitumen binders for the production of asphalt concrete mixtures. One of the directions is the use of polymer additives for bitumen modification. One of the relevant directions is the use of functionalized polymers. The aim of the work was to establish the effect of ethylene copolymers functionalized with glycidyl methacrylate on the properties of bitumen binders. Studies of the physico-chemical and operational characteristics of bitumen binders were carried out. The upper operating temperatures were studied according to the PG (Performance Grade) classification, which are based on the Superpave methodology and allow us to determine shear stability according to the parameters of track formation and the critical operating temperature. The use of the studied additives for bitumen modification will make it possible to obtain asphalt concrete coatings with increased resistance to the formation of a plasticity track. The use of such modifying additives does not require a change in the technology for obtaining bitumen binders and can be successfully used on standard equipment of asphalt concrete plants or enterprises producing modified bitumen.
Our Georgy Nikolaevich Babakin (on 110th anniversary of the birth)
Authors: Моишеев А.А. 
Published: September 2024

В статье, посвящённой 110-й годовщине со дня рождения Г.Н. Бабакина, приведён обзор его творческой деятельности. Особое внимание уделено годам его работы в качестве Главного конструктора в период начала работы предприятия по космическим проектам. За неполные 6 лет 15 автоматических космических станций серии «Луна», «Венера», «Марс» успешно выполнили свою программу
The article on the 110th anniversary of the birth of Georgy N. Babakin provides overview of his creative activity. A closer attention is paid to the years of his work as a Chief Designer during the early period of the enterprise’s space projects elaboration. In less than 6 years fifteen unmanned space stations of «Luna», «Venera», «Mars» series have successfully implemented its missions
Methodology for the parameters of the target system of a small spacecraft-communication as part of a low-orbit grouping of a space-communication system
Authors: Абдурахимов А.А. , Уханов И.Г. , Нечаев И.Ю. 
Published: September 2024

В статье рассмотрена методика расчёта мощности целевой системы (ЦС) малого космического аппарата, в зависимости от условий его функционирования в составе орбитальной группировки (ОГ). Путём математического моделирования движения малого космического аппарата связи по орбите выполнен анализ условий видимости абонентов, находящихся в регионе обслуживания, а также определена требуемая пропускная способность на основе проведения большого количества опытов и случайного распределения абонентов по территории. Рассмотренные вопросы необходимо учитывать на этапе проектирования малых космических аппаратов
The article considers the method of calculation the power of the target system of a small spacecraft, depending on the condition of its functioning as part of an orbital grouping. By mathematical modeling of the motion of a small communication spacecraft in orbit, the analysis of the visibility conditions of subscribers located in service region was performed, and required bandwidth was determined based on a large number of experiments-and a random distribution of subscribes across the territory. The considered issues should be taken into account at the design of small space spacecraft.