bluuebunny/crossref_metadata_2025 huggingface dataset:
The Relationship Between Atrial Fibrillation and Parathyroid Hormone in Heart Failure Outpatients
Authors: Murat Kerkutluoglu , Oguzhan Yucel , Hakan Gunes , Ufuk Ozgul , Birhan Yilmaz Mehmet
Published: October 2023

Background    Atrial fibrillation (AF) is a common arrhythmia in heart failure (HF). Plasma concentrations of para­thyroid hormone (PTH) have been shown to increase in HF. The relationship between PTH concentrations and the presence of AF in HF is, however, unknown. This study analyzed the relationship between plasma PHT concentrations and AF in patients with systolic HF.Material and methods    131 consecutive, stable HF patients, who were admitted to the HF outpatient clinic, were included in this prospective, observational study. Patients were classified as those with AF (n = 36) and those in sinus rhythm (SR, n = 95).Results    PTH concentrations were markedly higher in patients with AF compared to the patients in SR [85 (15-320) vs. 112 (30-326) U / ml, p=0.007]. PTH, creatinine clearance, hemoglobin, creatinine, age, and left ventricular ejection fraction were found to be related to AF by univariate analysis; though, multivariate logistic regression analysis showed that only PTH concentration was independently related to AF.Conclusion    PTH concentrations can be used to indicate AF in patients with systolic HF.
Features of the Diagnosis of Pulmonary Hypertension in Outpatient Practice
Authors: Moseichuk K. A. , Filippov E. V.
Published: October 2023

For the past 20 years, there has been no significant decrease in the time from the onset of symptoms to the diagnosis of pulmonary hypertension (PH). Therefore, it is very important to improve the awareness of therapists about clinical manifestations of the disease, risk factors for the development of PH, and the major diagnostic stages for early detection of the disease and timely administration of appropriate therapy.
Neurodidáctica aplicada al área de lengua extranjera en Educación Infantil y Primaria
Authors: González-Caballero Fuensanta , Cascales Martínez Antonia , Gomariz Vicente María Ángeles
Published: October 2023

La neurodidáctica es una disciplina emergente que posibilita la integración en el aula de estrategias basadas en el funcionamiento del cerebro. El objetivo de esta investigación es conocer en qué medida los docentes de lengua extranjera inglesa de las etapas de Educación Infantil y Educación Primaria utilizan estrategias que tienen su origen en la neurodidáctica y que son extrapolables al aula de inglés. Se trata de un estudio descriptivo ex post-facto de corte cuantitativo para el que se diseñó y validó un cuestionario ad hoc formado por 15 cuestiones sociodemográficas y 35 ítems valorados en una escala gradual del 1 al 5. En la investigación han participado 111 docentes de lengua extranjera inglesa de diferentes Centros Educativos. Los resultados indican que los participantes utilizan estrategias basadas en neurodidáctica en las sesiones de inglés, tanto presenciales como en las sesiones online.
educación literaria a través del diálogo con los clásicos
Authors: Rosal Nadales María
Published: October 2023

El presente artículo plantea una propuesta de intervención didáctica en el aula de primer curso de Bachillerato, en la asignatura de Lengua Española y Literatura. Partimos del objetivo de conocer, interpretar y valorar nuestro patrimonio literario, a través del análisis crítico de poemas en relación con su tiempo histórico y el diálogo con nuestro presente. Elegimos una composición poética, tan reconocida por el canon como es el soneto, y analizamos su pervivencia en la literatura española, así como las distintas imágenes de mujer que ofrecen en sus diversas manifestaciones.
La metodología propuesta se basa el aprendizaje cooperativo a través de la lectura comparada de poemas de autores del Renacimiento y Barroco con obras de poetas contemporáneas, para analizar las ideas, las imágenes de mujeres, así como los recursos métricos y retóricos de los que se valen. La comparación con los textos de autoras contemporáneas se plantea desde postulados de revisión y subversión aplicados a la herencia cultural, muy presentes en las poetas a partir de la década de los noventa del pasado siglo. En conclusión, esta manera de acercarnos a los textos favorece, a través de la interpelación a los clásicos, el incremento del intertexto lector y el análisis crítico de nuestro patrimonio literario.
Desigualdades espaciales en el acceso a la educación
Authors: Camino-Esturo Edorta
Published: October 2023

Acceder a un mayor nivel educativo supone aumentar las posibilidades de inclusión social en una sociedad democrática. Sin embargo, los niveles de instrucción educativa no se distribuyen de un modo equitativo en la sociedad ni el territorio. El objetivo de este artículo es analizar la distribución espacial de los niveles educativos en un espacio urbano (Bilbao, España), mediante métodos cuantitativos (SIG, análisis clúster). El estudio se realiza a un nivel micro escalar, a partir de los datos provenientes del Instituto Vasco de Estadística sobre la información educativa de las 277 secciones censales de la ciudad. El análisis de los datos encuentra una población educativamente segmentada y desigualmente distribuida en el espacio. Los niveles educativos superiores se segregan en clústeres situados en unas zonas centrales, mientras que los de menor rango se disponen concéntricamente, dispersándose hacia lugares periféricos.
Presentación
Authors: Leal Rivas Natasha , Martínez Ezquerro Aurora , Quiles Cabrera María del Carmen
Published: October 2023

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Osteological morphometric analysis of instrumentation safe zones of C1 and C2 vertebra in North Indian population: a multicentric study
Authors: Gogia Tushar , Dasgupta Tirthankar , Goel Neha , Singh Narender , Rajan Aravind , Das Mainak , Khera Dhairya
Published: October 2023

Background: The complex anatomy and critical functional role of the C1 and C2 vertebrae necessitate precise understanding of safe zones for instrumentation to mitigate risks during surgical interventions. This study aimed to conduct a comprehensive morphometric analysis to identify and characterize safe zones for instrumentation within C1 and C2 vertebrae. Though there are multiple radiological based studies, actual osteological measurements are not available for North Indian population.
Methods: 200 atlas and axis vertebrae were measured within an accuracy of 0.01 mm to ascertain various dimensions, distances and angles to guide safe exposure and instrumentation. To the best of our knowledge this observational morphometric study is first to provide actual osteological measurements in large number of C1 and C2 vertebrae in North Indian population.
Results: The morphometric analysis revealed precise measurements of pedicle dimensions, transverse foramen parameters, and distances from key anatomical landmarks within C1 and C2 vertebrae. Safe zones for instrumentation were identified based on these measurements, considering the optimal implant size and trajectory to minimize the risk of neural or vascular damage. Differences between the morphology of North Indian, South Indian and Turkish C1 and C2 morphology was also identified.
Conclusions: This study provides critical insights into the morphometric parameters which can be used to identify safe zones for instrumentation within the C1 and C2 vertebrae. The identified safe zones and associated measurements are essential for optimizing surgical strategies, enhancing instrumentation accuracy, and ultimately improving patient outcomes during craniovertebral surgical procedures. Spine Surgeons can utilize this data to tailor surgical approaches and implant placements, promoting safer and more effective interventions in the challenging anatomical region of the craniovertebral junction.
Epidemiology of emerging viruses
Authors: Ali P Shaik Syed
Published: October 2023

Newly emerging viruses such as West Nile virus, coronaviruses (SARS-CoV, MERS-CoV and SARS-CoV-2), H1N1pdm09, Ebola virus, Zika virus and Monkeypox virus are of global concern as they have caused serious public threats. Among the several outbreaks caused by emerging viruses, the worst pandemic was caused by SARS-CoV-2. The Omicron variant is the dominant variant among SARS-CoV-2 variants and the lineages BA.5.2 and BF.7 were responsible for the recent Chinese surge. Genome sequencing studies of MERS-CoV revealed that it is evolving with mutations in spike protein. West Nile virus is still circulating among birds in Europe, Mediterranean and North American countries. Several West Nile virus cases were reported from Europe and neighboring countries in 2022. The 2009 H1N1 pandemic caused by H1N1pdm09 is a variant strain evolved from H1N1 in swine. Though it caused more than 60 million infections, the mortality rate was 0.02%. Staggeringly, severe infections occurred among obese people. Zika virus has jumped borders from Africa and is adapting to become endemic in new geographical habitats such as South East Asia, India and Europe due to uncontrolled breeding of Aedes mosquitoes. Recently, autochthonous vector borne transmission of Zika virus was documented in France. During the Monkeypox pandemic, the virus demonstrated a lower infectious and mortality rate in individuals vaccinated for smallpox. A lower virulence of Monkeypox virus compared to smallpox was due to mutations in the ORF regions. Surveillance efforts and measures must be incessantly undertaken to prevent future outbreaks caused by emerging viruses.
CUBIERTAS PIROCLÁSTICAS CENOZOICAS EN LA PARTE SEPTENTRIONAL DEL VALLE MEDIO DEL MAGDALENA Y MESAS DE SANTANDER
Authors: Galvis Vergara Jaime , Mojica Corchuelo Diego
Published: October 2023

Hay rocas volcánicas ácidas en la parte norte del valle medio del río Magdalena y en las mesas de Santander presentan una relación poco clara con los sedimentos cretácicos. En ciertas áreas, se han confundido con sedimentos cenozoicos, mientras que en otras se han mapeado como rocas volcánicas del Jurásico o carecen de asignación de edad. Además, en algunas partes de la región cordillerana de Santander, se les ha dado nombres similares a formaciones sedimentarias del Cretáceo.
DESARROLLO DE LA HERPETOLOGÍA EN COLOMBIA. APORTES AL CONOCIMIENTO HISTÓRICO DE LOS ESTUDIOS SOBRE ANFIBIOS
Authors: Ardila-Robayo María Cristina
Published: October 2023

Se presenta una breve reseña histórica sobre las colecciones herpetológicas, principalmente de anfibios, en el Instituto de Ciencias Naturales y en Colombia.
ADDITIONAL BATS FROM THE MIDDLE MIOCENE LA VENTA FAUNA OF COLOMBIA
Authors: Czaplewski Nicolas J. , Takai Masanaru , Naeher Tiffany M. , Shigehara Nobuo , Setoguchi Takeshi
Published: October 2023

By screenwashing sedimentary rocks from the middle Miocene Villavieja Formation in the Río Magdalena valley, Huila Department, Colombia, yielded diverse bat fossils that contribute to the understanding of the approximately 12-13 million-year-old La Venta fauna. These newly collected specimens encompass an emballonurid, a noctilionid, three phyllostomids, a thyropterid, three molossids, and a probable vespertilionid. They originate from a stratigraphic level known as the Monkey Beds, dated between 12.5 million and 12.2 million years. Noteworthy findings include upper molars of Notonycteris magdalenensis, affirming its close relation to Vampyrum and Chrotopterus, and a novel species of Notonycteris, characterized by smaller size than N. magdalenensis based on two lower molars. Two upper molars from a primitive nectar-feeding bat introduce a new taxon of Phyllostomidae (Glossophaginae), representing a new genus and species and marking the only Tertiary record for this group. Another molossid, as yet unidentified, expands the bat diversity, and an unidentified probable vespertilionid constitutes the first family record in the La Venta fauna. In total, the La Venta fauna now encompasses 14 bat species, including some that remain indeterminate.
Assessing science capabilities in New Zealand secondary schools: Thinking required for planning to enacting
Authors: Carpendale Jared , Borthwick Mairi
Published: October 2023

Science capabilities were introduced within the New Zealand context following the revised New Zealand Curriculum (NZC). These capabilities are a small set of things that NZC intends students to be able to do in science, which weave the nature of science with content strands. Using pedagogical content knowledge (PCK) to understand teacher knowledge, this article explores how a New Zealand secondary school embraced science capabilities and how it is assessing them. A concerted and targeted effort over the last decade saw significant shifts in teacher thinking, and the school now utilises science capabilities for significant portions of the curriculum design and assessment in Years 9–11. Moving away from traditional approaches, the school now reports on student progression with respect to what they can do. It is intended that the thinking and approaches reported here will support other secondary schools if they are making changes to their science curriculum.
Limites da educação de jovens e adultos na superação do racismo e da desigualdade social
Authors: Corrêa Antônio Eugênio Furtado , Foster Eugénia da Luz Silva , Custódio Elivaldo Serrão
Published: October 2023

O discurso da educação como meio de superação do racismo e da condição de expropriado do educando está sempre presente na Educação de Jovens e Adultos (EJA). Assim, o objetivo deste artigo é analisar três fatores que influenciam na formulação e na implementação da EJA delimitando suas possibilidades. Um deles é a luta política e a tensão permanente entre projetos de sociedade que se negam econômica e ideologicamente. Os outros dois, que estão entrelaçados com o primeiro, são a formação docente e o controle estatal do ensino formal. Esses fatores estão presentes nas reflexões atuais e remetem a outras questões, com as quais estão relacionados, como a qualidade do ensino e o racismo. Metodologicamente desenvolveu-se uma comparação entre discursos, normas legais e implementação da EJA, com suas repercussões, para identificar limites e condicionamentos resultantes da organização social, da função estatal e da formação docente para o desenvolvimento da educação formal, tendo como referencial a superação do racismo e da desigualdade social. Os resultados demonstram que o discurso da superação é essencialmente ideológico ainda que itens de qualidade estivessem presentes. Além disso, os resultados apontam ainda que a formação docente crítica e transformadora exige conhecimentos construídos por esses educadores nos espaços dos movimentos sociais.
Do teatro ao testemunho: a representação do natal na visão de são francisco de assis após oitocentos séculos
Authors: Silva José Roberto da , Medeiros Aline Carla de , Maracaja Patricio Borges
Published: October 2023

O objetivo do nosso artigo é celebrar os 800 anos do presépio franciscano, procurando compreender as estratégias de escrita adotadas por vários autores para construir no imaginário popular a figura histórica de São Francisco. Autoridades como Tomás de Celano, Joseph Ratzinger, entre outros escritores, definiram representações sobre o evento na gruta de Greccio e os atores sociais que vivenciaram aquele momento fundamental para o cristianismo imaginado pelo Santo de Assis. O presépio, em pleno século XXI, ainda faz parte da cultura do Natal no final do ano e, provavelmente, irá permanecer por longos séculos, simbolizando o mistério da encanação do Filho de Deus. Outro ponto que não pode ser esquecido é a importância da imprensa escrita que procura noticiar o dia do Natal e a ação do povo comum produzindo seu presépio, e de forma sutil, preservando uma tradição secular que não pode ser esquecida. A encenação do Natividade, na aldeia de Greccio, pertence a um contexto geral da Bela Idade Média, expressão do historiador Jacques Le Goff, que não pode ser desconectada de um período em que “trupes” viajavam de cidades em cidades divulgando muitas histórias, entre elas, temas bíblicos. Será que a encenação imaginada por Francisco teve influência desses artistas? Não temos registro para afirmar, só nos resta imaginar.
Конспект внеклассного мероприятия по русскому языку в 7 классе «Путешествие в страну Прилагательных»
Authors: Лязгин П.Д.
Published: October 2023

Для данной методической разработки внеклассного мероприятия были использованы учебники ФГОС по русскому языку для 5, 6 классов, а также пособия для учителей, содержащие специальные задания для каждой темы. Целью этого мероприятия является повторение учащимися 7 классов изученного материала по теме «Имя прилагательное». Конспект выполнен в форме сценария интерактивного фильма-приключения по волшебной стране. В котором учащимся нужно разделиться на команды, и, выполняя различные задания, дойти до финала.
Основные параметры ансамблевого партнерства (на примере камерноинструментальных сочинений И. Брамса)
Authors: Петрова Е.Ю.
Published: October 2023

В статье обобщаются результаты исследования камерно-инструментальных сочинений И. Брамса. Автором выявлены тенденции симфонизации жанра, придания масштабности приемами фактурного насыщения, длительного развертывания единых по настроению больших звуковых пространств.
Влияние культурного контекста Китая 20-го века на творчество Сянь Синхай
Authors: Цзиня Л.
Published: October 2023

XX век стал для Китая периодом глубоких преобразований и потрясений, ознаменовавшихся политическими, социальными и культурными изменениями. На этом фоне Сянь Синхай стал заметной фигурой в китайской музыке, его композиции часто отражали сложное взаимодействие культурного контекста и художественного выражения. В данной статье рассматривается, как культурный контекст Китая XX века повлиял на творчество Сянь Синьхая, определив его композиции и темы
The effect of atomoxetine on cognitive function in patients with multiple sclerosis
Authors: Nejad Ehsan Mohammadian , Amouzadeh Effat , Kashipazha Davood , Shamsaei Gholamreza , Cheraghian Bahman
Published: October 2023

Background: Recent research shows that most of the patients with multiple sclerosis (MS) have cognitive-like disorders. Due to the beneficial effects of atomoxetine on improving cognition in limited animal and human surveys, the aim of the present study was to investigate the effect of the atomoxetine on improving cognitive disorders of MS.
Methods: This study was a parallel, randomized clinical trial, designed to investigate the effect of atomoxetine drug on the improvement of cognitive impairment (CI) in MS, from April 2021 to March 2022. According to the inclusion and exclusion criteria, a total of 52 participants were involved in the study and then randomly divided in two groups of 26. Experimental group was treated with atomoxetine and the control group was treated with placebo. The Minimal Assessment of Cognitive Function in Multiple Sclerosis (MACFIMS) test was performed for assessment at the beginning and after 3 months. The California Verbal Learning Test (CVLT), the CVLT-delay, the Brief Visuospatial Memory Test-Revised (BVMT-R), and the Symbol Digit Modalities Test (SDMT) were used to evaluate the CI and changes following medication. Finally, data were analyzed by SPSS software at significance level of 0.05.
Results: The mean age of patients in the experimental group was 37.7 ± 8.5 and in the placebo group was 37.8 ± 7.6 (P = 0.32). The results showed significant changes in cognitive levels before and after the use of atomoxetine and also in comparison to the placebo group (P < 0.05).
Conclusion: This study showed that atomoxetine improved the cognitive domains after administration compared to placebo.
Characteristic brain computed tomography of infective endocarditis after thrombolysis for ischemic stroke: A clinical note
Authors: Ghaderi-Yazdi Bardiya , Sikaroodi Hajir
Published: October 2023

The Article Abstract is not available.
Unveiling the Absence of a Local Medical Device and Biomaterials Manufacturing Industry in Zimbabwe: A Literature Review
Authors: Talent George Moyo Mthabisi
Published: October 2023

Medical devices and biomaterials play pivotal roles in the provision of healthcare and advancements in medicine. Zimbabwe, a low-income country in Southern Africa, faces resource constraints while combating both communicable and non-communicable diseases, which significantly contribute to the nation’s disease burden. The lack of a medical device and biomaterials manufacturing industry in Zimbabwe is a critical issue with profound implications for the country’s healthcare system and economic development. This literature review comprehensively examines the current state of medical device and biomaterials manufacturing in Zimbabwe, focusing on historical perspectives, health infrastructure, challenges, and the importance of establishing a local manufacturing industry. By analyzing barriers and constraints hindering industry growth and conducting international comparisons, successful strategies implemented by other countries are explored. Additionally, the review investigates ongoing research and development efforts, including collaborations between academic institutions and industries in the medical technology field. Furthermore, the impact of existing government policies and initiatives on the growth of the medical device and biomaterials manufacturing sector is evaluated. The review emphasizes the significance of a local manufacturing industry, as it enhances healthcare accessibility, reduces dependency on imports, and unlocks potential economic benefits. By identifying potential opportunities and providing recommendations for policymakers, investors, and stakeholders, this study advocates concerted efforts to address challenges and capitalize on growth opportunities in this critical sector. The call to action seeks to foster collaboration among relevant stakeholders to support the development of a thriving medical device and biomaterials manufacturing industry in Zimbabwe, ultimately contributing to improved healthcare outcomes and overall national progress.
Composition transformation of terrigenous organic matter resinous-asphaltene components in super-deep wells in Siberia during meso- and apocatagenesis
Authors: Dolzhenko Kirill V. , Borisova Lyubov S. , Fomin Alexander N. , Popova Irina D.
Published: October 2023

The evolution of the elemental composition of dispersed organic matter (DOM) heterocyclic components during catagenesis was traced via studying samples from the Tyumen (SG-6) and Srednevylyuy-27 (SV-27) super-deep wells of Siberia. During mesocatagenesis, the composition of terrigenous DOM asphaltenes and resins undergoes directed changes: a decrease in hydrogen and oxygen content, enrichment with carbon, and graphitization of the structure. During apocatagenesis, due to high-temperature destruction, on the one hand, there is a condensation of individual blocks of asphaltenes and their transition to an insoluble form (formation of epiasphaltenic kerogens – EPAK). On the other hand, the lighter part of the asphaltenes goes into the formation of hydrocarbons and gas formation – a relative increase in the concentration of the former in % by mass of residual bitumoids is noted, as well as structural redistributions within benzene and spirit-benzene resins. In all studied parameters of the elemental composition, a symmetrical (unidirectional) transformation of resinous and asphaltene components of bitumoids from the SG-6 and SV-27 wells under harsh thermobaric conditions is noted. The obtained results should be taken into account when predicting new oil and gas accumulation zones in deep-laid horizons.
Driving a Vehicle by Holding a Licence Not Appropriate to the Category to Which the Vehicle Belongs by a Person With a Suspended Driving Licence. Legal Classification. Appeal Within Time Limit.
Authors: Pamfil Mihaela Laura
Published: October 2023

The purpose of this paper is to highlight the interpretation and application of the law by the courts in a case that has raised both substantive criminal law and criminal procedure issues. Thus, it is of interest to know the legal classification that must be assigned to the act of a person who commits several forms of the same offence, provided for in the same criminal law. In the present case, the discussion refers to S. 335 (12) of the Criminal Code: Driving, on public roads, a vehicle for which a driving license is required by law, by an individual who owns a driving license which was issued for a different category or subcategory than the one in which the vehicle is included, or whose license has been suspended, withdrawn or rescinded or who is not entitled to drive vehicles in Romania shall be punishable by no less than 6 months and no more than 3 years of imprisonment or by a fine. From a procedural point of view, it is also of interest to analyse the time from which the appeal period starts to run and the defendant's compliance with this period in the context of the fact that the appeal was lodged after the enforcement of the first instance judgment.
Myrrh Attenuates Gonadal Toxicity and DNA Fragmentation Induced by Ethanol in Male Rats
Authors: Alahmari Abeer
Published: October 2023

Background: Long-term ethanol consumption causes pathological alterations to the male reproductive system, possibly resulting in infertility. Myrrh is a resin with antioxidant properties that is produced from the bark of Commiphora tree species. This research aimed to observe the protective impact of myrrh extract supplementation on male reproductive injury and toxicity induced by ethanol treatment. Methods: Adult male Sprague Dawley rats were orally treated with 40% ethanol (3 g/kg) in combination with myrrh extract (500 mg/kg) for four weeks to investigate the curative efficiency of myrrh extract against ethanol toxicity from physiological, histopathological and genetic aspects. Result: The findings revealed that the sperm count, testosterone level and DNA concentration diminished significantly in the ethanol-treated rats compared to control rats, while the contents of malondialdehyde (MDA), heat shock protein 70 (HSP70) and proinflammatory mediators, including tumor necrosis factor-α (TNF-α) and nitric oxide (NO), were elevated significantly; severe degenerative changes in the testicular structure and strong testicular DNA fragmentation were also observed. Co-treatment with myrrh attenuated lipid peroxidation and improved testicular histomorphology, testosterone levels and DNA concentrations and pattern, while at the same time, the levels of both HSP70 and TNF-α levels were increased. Our results provide insight into the curative impacts of myrrh on ethanol toxicity resulting from the rich content of curzerene in myrrh, which has antioxidant activities.
Digital activism on YouTube. The representation of power and counter-power relations in a video activism piece during the second round of the 2021 presidential elections in Peru
Authors:   , Rantes Garcia Giancarlo Miguel
Published: October 2023

Los medios digitales se han convertido en una pieza fundamental para la comunicación de hoy en día, y el videoactivismo no es ajeno a ello. La presente investigación analiza el video “Elecciones generales 2da vuelta”, del realizador POLOVERDE ART, desde la sociología. Esta pieza de activismo digital, subida a YouTube, relata satíricamente la coyuntura política-electoral del Perú durante el 2021. Este artículo busca ahondar en las relaciones de poder y contrapoder plasmadas en este video, indagando en los comentarios del video en la plataforma. La metodología toma base en el constructivismo social y el análisis temático, mediante el cual se identificó rechazo a los candidatos electorales, así como al congreso, mientras que el entonces presidente fue respaldado por los usuarios de YouTube. Esto concluye que, en esta pieza de activismo digital, los roles tradicionales del poder y contrapoder se invierten, al mostrar a un presidente como símbolo del contrapoder, mientras que la oposición pasa a representar al poder, dentro de un entorno tecnológico de libre opinión.
Evaluación conceptual y numérica de la socavación local de pilares con collares para el puente Andrés Avelino Cáceres utilizando HEC-RAS e Iber - Piura - Perú
Authors:   , Luliquis Salinas Shamir Fabian John
Published: October 2023

En el año 2017, el Perú sufrió las consecuencias del fenómeno climatológico conocido como El Niño Costero, los desbordes de los ríos y los deslizamientos ocasionados por las fuertes lluvias producidas, dejó un gran saldo de pérdidas económicas y vidas humanas. La región Piura fue una de las más afectadas, el caudal del río Piura llegó a 3100 m3/s, un valor extraordinario que dejó inhabilitados a los puentes para el tránsito vehicular debido al temor de un posible colapso. Teniendo en cuenta que la socavación en los puentes es una de las principales causas de colapso, la presente investigación tiene como objetivo evaluar la propuesta de instalación de collares para reducir la socavación local en los pilares del puente Andrés Avelino Cáceres, ubicado en Piura y sobre el río que lleva el mismo nombre. Basándose en datos geológicos e hidrológicos de la zona de estudio, la investigación plantea realizar un análisis de la socavación local a través del modelado numérico en los softwares HEC-RAS (1D) e Iber (2D) haciendo una comparativa entre escenarios sin la aplicación de los collares en los pilares e instalando estas protecciones.
Relación entre el liderazgo empoderador y la satisfacción laboral del personal asistencial de policlínicos categoría I-3 en Lima Metropolitana 2022
Authors:   , Alfaro Salcedo Estefany Yanina , Pizarro Sayán Fiorela Milagros
Published: October 2023

La presente investigación se empleó con el objetivo de determinar la relación entre el Liderazgo empoderador y la satisfacción laboral del personal asistencial de policlínicos categoría I-3 en Lima Metropolitana 2022. Para determinar ello, se analizó a una muestra representativa y aleatoria de 372 colaboradores asistenciales de los policlínicos de la categoría I-3 en Lima Metropolitana 2022, mediante un enfoque cuantitativo y correlacional. Con respecto a la recolección de los datos, se aplicó una encuesta con 24 afirmaciones medidas por los 5 niveles de la escala de Likert, siendo este instrumento diseñado sobre la base de la implementación de las variables liderazgo empoderador y satisfacción laboral. Luego de haber realizado la encuesta, se procesaron y analizaron los resultados mediante el programa estadístico SPSS Statics 25, para validar la hipótesis general e hipótesis específicas del estudio. Es así como, al rechazar la hipótesis nula y aceptar la hipótesis alterna, es así que se evidenció la existencia de una relación entre el liderazgo empoderador y la satisfacción laboral del personal asistencial de policlínicos categoría I-3 en Lima Metropolitana 2022. A partir de lo desarrollado en la investigación, se concluyó que la satisfacción laboral de la población en estudio se relaciona positivamente con el liderazgo empoderador. Como recomendación, se planteó, enfocar futuras investigaciones en buenas prácticas de este estilo de liderazgo, las competencias que se requieren para ejercerla y sus desventajas, con el fin de complementar la información presentada en la investigación.
O mercado de trabalho em Santa Catarina
Authors: Welters Angela
Published: October 2023

O objetivo do artigo é avaliar a dinâmica do mercado de trabalho catarinense em uma perspectiva comparativa com a região Sul e com o Brasil. Os resultados mostram que a deterioração do mercado de trabalho no estado não foi tão intensa como no restante do país, mas pode ser identificada pelo aumento da proporção de trabalhadores na informalidade, inclusive entre os mais escolarizados, pela estagnação dos rendimentos do trabalho e pelo aumento da desocupação e da subocupação por insuficiência de horas trabalhadas. Além disso, há importantes diferenças entre homens e mulheres no mercado de trabalho regional. Ao mesmo tempo, o cenário da desindustrialização parece ser menos intenso no estado, em comparação com a região Sul e com o conjunto do país, o que fica evidenciado na manutenção da participação do setor industrial no valor adicionado, no emprego formal e nas exportações de Santa Catarina.
Imprensa e Insegurança Alimentar no Brasil da pandemia
Authors: Oliveira Natalia Bizerra , Freitas Brena Barbosa , Sousa Ana Cristina Augusto de
Published: October 2023

Introdução: Este texto identifica e analisa matérias jornalísticas que abordaram o consumo de alimentos  durante a pandemia, no contexto da crise econômica e do desmonte das políticas públicas de segurança alimentar no país. Objetivo: O objetivo geral do trabalho é analisar o conteúdo das matérias que abordaram o tema para perceber que mensagens elas transmitiam a respeito do agravamento da insegurança alimentar no contexto da crise econômica e do aumento do preço dos alimentos. Método: Para efetuar a análise do conteúdo, foram selecionadas 15 matérias nos sites de dois jornais, a saber, Extra e G1, do Grupo Globo S.A., publicadas entre 2020 e 2021, auge da pandemia. Resultados: Os resultados obtidos mostraram que, via de regra, a cobertura jornalística abordou o aumento do preço dos alimentos e dos custos na cadeia de suprimentos como uma realidade dada – às vezes, da natureza – e não como resultante de um processo construído politica e socialmente a partir das decisões políticas dos nossos dirigentes. Com isso, os verdadeiros responsáveis pela crise e pelo desmonte das políticas de segurança alimentar seguiram invisíveis e, portanto, protegidos da opinião pública. Discussão: O estudo examina de forma crítica o papel da mídia na produção de mensagens que perpetuam narrativas que ocultam os responsáveis pelos problemas coletivos da população e mostra, a partir da trajetória do setor, as decisões políticas que nos levaram de volta ao mapa da fome. Por fim, destaca a importância de reativar o CONSEA como órgão consultivo fundamental no combate à insegurança alimentar.
Adaptive robust control for biped walking under uncertain external forces
Authors: Wang Helin , Chen Qijun
Published: October 2023

Adaptability and robustness are important expressions of the intelligent walking ability of biped robots. This paper is concerned with the problem of dynamical biped walking and robust control of biped robots under external forces. Due to the characteristics of strong coupling and hybrid, the robotic system is modeled as a rigid kinematic chain with Lagrange equations. A novel adaptive feedback controller is proposed based on sliding mode control (SMC) and hybrid zero dynamics. The novelty of the proposed work lies in taking the uncertainty of upper-bound error into consideration. The hybrid robust control is mentioned to approximate unknown dynamic functions with the adaptive weight. The restricted Poincare return map is utilized to analyze the stability of a nonlinear impulsive system. It ensures that the flow of the continuous subsystem can pass through the impact cross section. Finally, the simulation results illustrate that the proposed adaptive SMC control system can favorably track the reference trajectories, even when a fault occurs, which verifies the effectiveness of the proposed method.
Communication of Uncertainty in AI Regulations
Authors: Phutane Aditya Sai
Published: October 2023

Scholarship of uncertainty in artificial intelligence (AI) regulation has focused on theories, strategies, and practices to mitigate uncertainty. However, there is little understanding of how federal agencies communicate scientific uncertainties to all stakeholders including the public and regulated industries. This is important for three reasons: one, it highlights what aspects of the issue are quantifiable; two, it displays how agencies explain uncertainties about the issues that are not easily quantified; and three, it shows how knowledgeable agencies perceive the public audience in relation to the issue at hand and what they expect from such communication. By analyzing AI regulations across four categories of scientific uncertainties, this study found that uncertainty in areas of ownership, safety, and transparency are hard to quantify and hence agencies use personalized examples to explain uncertainties. In addition, agencies seek public input to gather additional data and derive consensus on issues that have moral implications. These findings are consistent with the literature on tackling uncertainty and regulatory decision-making. They can help advance our understanding of current practices of communicating science effectively to explain risks and uncertainties.
Modeling and Optimization of Mechanical Cutting of Downhole Tubing
Authors: Zhu Xiaohua , Zhou Bowen , Jing Jun , Shi Jiangmiao , Qin Ruyi
Published: October 2023

Mechanical cutting of tubing plays a vital role in solving the problem of pipe string jams in workover operations of oil wells. To improve the efficiency of downhole cutting operations and save operation costs, it is necessary to optimize the parameters of downhole-cutting operations. However, previous research did not involve related engineering problems. Therefore, in this paper, the equivalent simulation experiment of downhole cutting is conducted based on actual field data. Cutting speed, feed rate, and cutting thickness are used as parameters while cutting power (P), material removal rate (MRR), and tool chip temperature (T) are used as optimization objectives with the trade-offs between the three objectives considered. The full factorial design is used to carry out the experiments and the combination of grey relational analysis (GRA) method and entropy weight method is used to determine the weight of the three objectives. The influence of cutting parameters on the optimization objectives is analyzed, the mathematical model between cutting parameters and a single objective is established, and the adaptive weight particle swarm algorithm is used to optimize the coefficients of this model. The relationship between the multiobjective model and cutting parameters is established using a multiple nonlinear regression model, and the selection of interaction terms is completed using a stepwise regression method. The reliability of the model is also verified. This paper provides a reference for future research on downhole-cutting problems.
Translaminar Fully Endoscopic Discectomy for Lumbar Foraminal Disc Herniation: A Technical Note
Authors: Takebayashi Kento , Iwai Hiroki , Nanami Hirohiko , Koga Hisashi
Published: October 2023

Lumbar disc herniations (LDHs) located in foraminal lesions are difficult to approach using the normal posterior approach while preserving the facet joints. The translaminar approach (TLA) of fully endoscopic spine surgery allows access to a foraminal lesion through a small fenestration on the isthmus of the vertebral lamina, thereby preventing facet joint destruction. TLA is particularly suitable for L5/S1 foraminal LDH cases where the transverse diameter of the foramen is anatomically long. From 2020 to 2022, TLA was performed in 17 patients with foraminal LDH (12 men and 5 women), with a mean age of 67 years. The operative levels were L3/4 in 1 case, L4/5 in 2 cases, and L5/S1 in 14 cases. The mean operative time was 72 minutes, and the mean blood loss was negligible in all patients. The mean postoperative hospital stay was 1.2 days, and no major complications occurred. The mean preoperative and postoperative Numerical Rating Scale scores for leg pain were 6.4 and 1.8, respectively, and the mean patient satisfaction score at 3 months after TLA was 7. In conclusion, TLA is a minimally invasive approach for foraminal LDH, with particular advantages for facet joint preservation.
Prefrontal Cortical Regulation of REM Sleep
Authors: Weber Franz , Hong Jiso , Lozano David , Beier Kevin , Chung Shinjae
Published: October 2023

Rapid-eye-movement (REM) sleep is accompanied by intense cortical activity, underlying its wake-like electroencephalogram (EEG). The neural activity inducing REM sleep is thought to originate from subcortical circuits in brainstem and hypothalamus. However, whether cortical neurons can also trigger REM sleep has remained unknown. Here, we show in mice that the medial prefrontal cortex (mPFC) strongly promotes REM sleep. Bidirectional optogenetic manipulations demonstrate that excitatory mPFC neurons promote REM sleep through their projections to the lateral hypothalamus (LH) and regulate phasic events, reflected in accelerated EEG theta oscillations and increased eye-movement density during REM sleep. Calcium imaging reveals that the majority of LH-projecting mPFC neurons are maximally activated during REM sleep and a subpopulation is recruited during phasic theta accelerations. Our results delineate a cortico-hypothalamic circuit for the top-down control of REM sleep and identify a critical role of the mPFC in regulating phasic events during REM sleep.
On the maximum number of maximum independent sets of bipartite graphs
Authors: Sun Wanting , Li Shuchao
Published: October 2023

An independent set in a graph G is a set of pairwise non-adjacent vertices of G. The independence number, α, of G is the maximum cardinality of an independent set in G. An independent set in G is maximum if it has cardinality α. Mohr and Rautenbach determined the n-vertex trees (resp. disconnected graphs) with independence number α having the largest number of maximum independent sets. Quite recently, Mohr and Rautenbach characterized the connected graphs of order n and independence number α that maximize the number of maximum independent sets. As a continuance of these works, we characterize the bipartite graphs (containing at least one cycle) of order n and independence number α having the maximum number of maximum independent sets. Furthermore, we determine the n-vertex trees with independence number α having the second and third largest number of maximum independent sets. We also characterize the n-vertex forests with independence number α having the first three largest number of maximum independent sets. Among the n-vertex disconnected graphs with independence number α we identify the graphs with the second largest number of maximum independent sets. Our result gives a solution to an open problem of Derikvand and Oboudi [4], and we obtain a complete classification of connected graphs with order n and independence number n − 3.
AMS subject classification: 05C69, 05C35
New proposed of standard area diagram scale for assessing black sigatoka in bananas
Authors: Nuñez Andrés Mauricio Pinzón , Feria-Gómez Diego Felipe , Pérez-Ochoa Gloria Marcela , Arango-Palacio Laura , Rey-Valenzuela Vicente Emilio , Zapata-Henao Sebastián
Published: October 2023

Black sigatoka, or black leaf streak (BLS), is caused by Pseudocercospora fijiensis and is the most important foliar disease in Musa production. Our goal was to develop a new standard area diagram (SAD) with high-resolution digital images with six disease levels: 0 (0%), 1 (0.1–5.0%), 2 (5.01–13.0%), 3 (13.01–23.0%), 4 (23.01–40.0%), 5 (40.01–65.0%) and 6 (> 65.0%) and compare BLS severity results in banana leaves with those based on another SAD. Five evaluations were conducted by thirteen different evaluators and each evaluation was performed at seven-day intervals. The first assessment was done without a SADs. Evaluators performed two assessments with each SAD. The statistics were analyzed with linear regression and Lin’s concordance correlation. With the proposed SAD, the evaluators improved the precision, accuracy, repeatability and reproducibility and reduced the residual distribution, as compared using the other SAD. The proposed SAD is a tool that aids users in producing a disease estimate that is close to the real value of BLS in banana leaves.
Cognitive Changes After Tap Test in Patients With Normal Pressure Hydrocephalus
Authors: Mayorga Pilar , Hurtado Cethinia , Gempeler Andrés , Cruz-Sanabria Francy , González Martina , Jaramillo Daniel , Mejia-Michelsen Isabella , Gomez Diego , Ramón Juan Fernando , Hakim Fernando
Published: October 2023

Background:Normal pressure hydrocephalus (NPH) leads to cognitive impairment (CI) as part of its triad of symptoms. Its assessments before and after a tap test in suspected patients can be used to inform diagnosis, differentiate NPH symptoms from alternative or concomitant causes of CI, and suggests the potential benefits of valve-placement. The aim of this study was to describe the assessment of domain-specific cognitive performance in patients with NPH diagnosis before and after a tap test, applied as part of the diagnostic workup upon initial NPH suspicion.
Methods: Before-and-after study that included NPH patients that underwent cognitive assessments by neuropsychologists before and after a tap test. Clinical features at baseline and results in the CERAD, ADAS-COG, SVF, PVF, ROCF and IFS tests were recorded. The tests scores were converted to z-scores according to age and level of education. Absolute scores, z-scores are described for each domain and according to the presence of dementia. Changes after tap test were assessed with paired-samples hypothesis testing. This study was approved by the institutional ethics review board before start.
Results: 76 NPH patients were included, their median age was 81 years (77-83) and 65 NPH patients (87.8%) were considered to have improved cognitive performance after tap test as part initial usual-care diagnostic assessment. We detected small differences in scores of ROCF (p=0.018) and IFS (p<0.001) between pre- and post-tap test assessments. No difference in the proportion of patients with altered cognitive performance was detected in this short 24-hour interval. Dementia was concomitant in 68.4% of patients, was negatively associated with improvement in SVF (2.9% vs. 28.6%, p=0.003) and IFS (0% vs. 16%, p=0.014) and may have affected detection of improvement for other tests.
Conclusion: Executive function and praxis are the cognitive domains more susceptible to improvement after a tap test in a 24-hour interval in NPH patients upon initial assessment. These results are of interest to multidisciplinary groups involved in the diagnosis of NPH and could help inform patient selection for valve placement in NPH.
Prospective validation of a mobile health application for blood pressure management in patients with hypertensive disorders of pregnancy: study protocol for a randomized controlled trial.
Authors: Kwun Ju-Seung , Yoon Yeonyee E. , Choi Hong-Mi , Choi Hye-Jung , Kang Si-Hyuck , Park Jee Yoon , Kim Hyeon Ji , Choi Bo Young , Lee Min Jung , Yoo Sooyoung , Suh Jung-Won
Published: October 2023

Background
Hypertensive disorders of pregnancy (HDP) pose significant risks to both maternal and fetal health, contributing to global morbidity and mortality. Management of HDP is complex, particularly because of concerns regarding fetal safety associated with pharmaceutical interventions. The use of mobile health (mHealth) applications for blood pressure management has shown promise. This prospective study aims to evaluate the efficacy of the Heart4U mHealth application for proactive blood pressure management in pregnant individuals with HDP, to improve short-term maternal and fetal outcomes and potential long-term cardiovascular consequences.
Methods
This prospective, randomized, single-center trial will include 580 pregnant participants who meet the HDP criteria or who have a heightened risk of pregnancy-related hypertension due to factors such as multiple pregnancies, obesity, diabetes, or a history of HDP in prior pregnancies leading to preterm birth. Participants are randomized to either the mHealth intervention group or the standard care group. The primary endpoint is the difference in systolic blood pressure from enrollment to one month after childbirth. The secondary endpoints include various blood pressure parameters, obstetric outcomes, body mass index trajectory, step counts, mood assessment, and drug adherence.
Conclusions
This study emphasizes the potential of mHealth interventions, such as the Heart4U application, to improve blood pressure management in pregnant individuals with HDP. By leveraging technology to enhance engagement, communication, and monitoring, this study aims to positively impact maternal, fetal, and postpartum outcomes associated with HDP. This innovative approach demonstrates the potential of personalized technology-driven solutions for managing complex health conditions.
Trial registration:
ClinicalTrials.gov (NCT05995106) registered in 16 August 2023. https://classic.clinicaltrials.gov/ct2/show/NCT05995106