bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Volume Air Tabung Penyimpanan Terhadap Efisiensi Thermal pada Kolektor Surya dengan Sistem Termosifon
Authors: Rahfano Rafi , Apriyanti Vivi , Marfizal
Published: February 2025

Pengujian mengenai pengaruh volume air terhadap efisiensi termal kolektor surya dengan kemiringan 15° ini dilakukan menggunakan sistem termosifon secara alami dengan susunan pipa paralel. Penelitian ini bertujuan untuk menentukan efisiensi termal kolektor surya pada variasi volume air sebesar 18 liter, 16 liter, dan 14 liter. Setiap variasi volume air diuji selama tiga hari, sehingga total waktu pengujian adalah sembilan hari. Hasil pengujian dan perhitungan menunjukkan bahwa pada volume air 18 liter, efisiensi termal rata-rata kolektor surya mencapai 87,18%. Sementara itu, pada volume air 16 liter, nilai efisiensinya sebesar 81,12%, dan pada volume air 14 liter, efisiensi rata-ratanya adalah 78,64%.
Leading Through Change in a Healthcare Delivery Setting
Authors: Belisle Lisa , Nadelson Louis
Published: February 2025

Planned and unplanned changes in healthcare organizations can be very challenging to lead through. While unplanned changes occur constantly, usually going unnoticed, they tend to require minimum leadership. However, planned change, such as restructuring units or merging multiple organizations, requires high levels of leader engagement. In our literature search, we found a dearth of empirical research documenting how healthcare system leaders lead through change. We sought to fill this gap by researching how the leaders in a healthcare delivery system lead through change. Using a descriptive phenomenology methodology to describe the lived experiences of the leaders, we interviewed ten healthcare system administrators to document their preparation to lead, their leadership philosophy, their leadership priorities, and their navigation of barriers.
Health Policy: What’s On the Table for the Second Trump Administration?
Authors: Concha Andrew
Published: February 2025

In the aftermath of a historic election year primarily centered on issues such as the economy, inflation, and border security/immigration, health policy received relatively little attention during campaign discussions. Specific action items concerning the Affordable Care Act (ACA), Medicaid, and immigration health policy were minimally communicated. Nevertheless, significant developments in these areas are anticipated during the initial year of President Trump's second term. This article provides an overview of the policy discussions related to the ACA, Medicaid, and immigration health policy.
Cuidado obstétrico no SUS no manejo de doenças crônicas durante a gestação
Authors: Leite Matheus Fontes , Fachini Mérlim , Lins Rayana Maria Pinto Leitão , Silva Jacira Theodosio Mendes da , Vilanova Lidiane Alencar , Araújo Victor Oliveira de , Carvalho Thiago Aguiar , Carvalho Caio Aguiar , Rodrigues Hérica Jovita Carvalho , Santos Marcelo Henrique , Silva Rafael Ferraz Novaes Gomes da , Assumpção Maria Luiza Mac Dowell Dourado
Published: February 2025

A gestação é um período de intensas transformações fisiológicas e emocionais que demandam cuidados especializados, sobretudo em situações em que a gestante apresenta doenças crônicas pré-existentes, como diabetes mellitus, hipertensão arterial sistêmica ou obesidade. Este artigo tem como objetivo analisar o manejo de doenças crônicas no SUS no período gestacional. A pesquisa foi realizada nas bases de dados PubMed, SciELO, LILACS e Google Scholar, abrangendo estudos publicados entre 2015 e 2023. Os descritores utilizados incluíram termos em português e inglês, como “doenças crônicas e gestação”, “manejo obstétrico no SUS”, “diabetes gestacional”, estudos que não apresentassem dados completos ou que não estivessem relacionados ao tema central foram excluídos. As evidências analisadas destacam tanto avanços quanto desafios relacionados à assistência obstétrica prestada a gestantes com condições crônicas. No aspecto clínico, os estudos revisados evidenciam que gestantes com hipertensão arterial crônica e diabetes mellitus enfrentam maior risco de complicações obstétricas, A aplicação de protocolos específicos para o acompanhamento dessas condições tem demonstrado eficácia na redução de complicações, especialmente quando as gestantes têm acesso a cuidados pré-natais adequados e contínuos. Contudo, esses serviços são desiguais, variando significativamente entre regiões e níveis socioeconômicos. gestantes com condições como hipertensão arterial crônica e diabetes mellitus enfrentam riscos elevados de complicações obstétricas, incluindo pré-eclâmpsia, restrição de crescimento fetal e parto prematuro. Esses riscos são agravados por barreiras estruturais, como a sobrecarga dos serviços de saúde, a falta de recursos e a desigualdade no acesso ao cuidado pré-natal.
Planejamento Estratégico e Balanced Scorecard: Sinergia para o Sucesso da Gestão Pública na Junta Comercial do Estado do Pará
Authors: Oliveira Rodney de Aquino , Teixeira Regina Cleide Figueiredo da Silva
Published: February 2025

Este estudo analisou o impacto das ações estratégicas nos indicadores não financeiros da Junta Comercial do Estado do Pará (JUCEPA) entre 2018 e 2022, utilizando o Balanced Scorecard (BSC) como ferramenta de análise. A pesquisa buscou entender como a gestão estratégica, por meio do planejamento estratégico e do BSC, pode ser utilizada para melhorar a gestão pública, alinhando as ações com os objetivos estratégicos e promovendo a eficiência e a transparência.  A metodologia qualitativa e exploratória incluiu análise documental de relatórios de gestão, leis, decretos e portarias, entrevistas com gestores e servidores da JUCEPA, e observação participante do pesquisador no ambiente da organização.  Os resultados demonstram que as ações estratégicas da JUCEPA resultaram em melhorias significativas nos indicadores não financeiros, como aumento da eficiência, acessibilidade e satisfação dos usuários, contribuindo para um ambiente de negócios mais favorável no estado.  O estudo conclui que o planejamento estratégico e o BSC são ferramentas essenciais para a melhoria da gestão pública, especialmente no contexto brasileiro, e incentiva a adoção de uma abordagem estratégica com foco em indicadores de desempenho e na busca por resultados, contribuindo para o desenvolvimento de um setor público mais eficiente e responsivo.
Fortalecimiento en el uso de aplicativos que incluyen inteligencia artificial a los docentes en el proceso de enseñanza aprendizaje
Authors: Cercado-Basurto David Alexander , Mera-Holguín Joice Thalía , Ramírez-Gutiérrez César Vicente , Martínez-Pérez Odette
Published: February 2025

La inteligencia artificial (IA) en el área académica tiene un fuerte impacto en varias plataformas. Las mismas se están convirtiendo en herramientas innovadoras en el proceso de la enseñanza y el aprendizaje en el aula de clase. El desconocimiento de los docentes de su aplicación y uso, el proceso de registro, el entorno de cada una de ellas y además de su utilización de la inteligencia a beneficio del mismo impide el aprovechamiento de estas herramientas que nos brinda la tecnología. Este articulo tiene como objetivo abordar esta problemática ¿Como la falta de conocimiento sobre las herramientas digitales de enseñanza aprendizaje afecta el proceso educativo¬? Estas herramientas digitales e innovadoras actualmente contribuyen en el aula desde el inicio hasta su fin. Las motivaciones, saberes previos y proceso didáctico de enseñanza/aprendizaje y métodos de evaluación de conocimiento a lo largo de la investigación, se examinará detalladamente en la capacitación del docente para la aplicación de la IA en la pedagogía, asimismo se evaluará su impacto de dicha tecnología en el desarrollo de la enseñanza – aprendizaje. Analizando el impacto de este tema en la equidad educativa y en su proceso formativo de los estudiantes a un futuro cada vez más digital. Esta estrategia de alcanzar nuevos conocimientos con el personal docente en las herramientas digitales es conocer el potencial y aplicación en la educación basada en la inteligencia artificial, el fin es priorizar una educación de calidad en de la Unidad Educativa San Francisco de Asís.
Estilos de aprendizaje e impacto sobre el rendimiento académico en estudiantes de bachillerato técnico
Authors: Ormaza-Vera Enrique Javier , Maliza-Cruz Wellington Isaac
Published: February 2025

El presente estudio investigó los estilos de aprendizaje y el rendimiento académico de los estudiantes de octavo y noveno año de Bachillerato técnico en la Unidad Educativa Eloy Velásquez Cevallos, Cantón Junín. Se empleó un diseño descriptivo con enfoque cualitativo y cuantitativo, utilizando un pretest y posttest para evaluar el impacto de una intervención educativa centrada en los estilos de aprendizaje visual, auditivo y kinestésico (VAK), mediante el test creado por Lynn O’Brien (1990), compuesto por 36 preguntas. La muestra consistió en 53 estudiantes de ambos grados. Los resultados mostraron que los estudiantes de octavo año tuvieron promedios más altos que los de noveno, con una ligera diferencia a favor de los varones en ambos grados. No obstante, los estudiantes de noveno año, especialmente los varones, experimentaron una mejora en sus calificaciones tras la intervención. Los análisis estadísticos revelaron una diferencia significativa entre los promedios del pretest y el posttest, lo que indica que la capacitación tuvo un impacto positivo en el rendimiento académico, especialmente en noveno año. En cuanto a las preferencias de estilo de aprendizaje, el 48% de los estudiantes de octavo preferían el estilo visual, mientras que en noveno grado, los estilos visual y kinestésico fueron los más predominantes. Estos hallazgos destacan la importancia de adaptar las estrategias pedagógicas a los estilos de aprendizaje de los estudiantes, lo que mejora la efectividad del proceso educativo, fomentando una mayor comprensión y participación activa.
Localization of subarachnoidal hemorrhage and outcome: a retrospective, single center analysis
Authors: Bollen I , Willaert X , Stockx L , De Beule T , Mesotten D , Fivez T
Published: February 2025

The outcome of acute subarachnoidal haemorrhage (aSAH) is highly variable and depends on the severity of the aSAH. The brain is characterized by an anterior and posterior cerebral circulation, which are interconnected through the circulus of Willis. An ischemic stroke in the posterior circulation has a different presentation and outcome, compared with an ischemic stroke in the anterior circulation.

We hypothesized that aSAH in the posterior circulation results in a worse outcome, compared with an aSAH of the anterior circulation.

This retrospective single center study analyzed patients who underwent a surgical procedure for aSAH from January 2017 until December 2021 at the Ziekenhuis Oost- Limburg’ ZOL, Genk, Belgium. Length of ICU and hospital stay and hospital mortality were the main outcome variables.

Patients with an aSAH in the posterior circulation had a higher World Federation of Neurosurgical Societies (WFNS) and Fisher grade on admission. Higher WFNS grade resulted in longer duration of stay in ICU and hospital, and in a higher mortality rate. However, in multivariable logistic regression analysis the localization of the aSAH was not independently associated with mortality.

While patients with an aSAH, deriving from an aneurysm in the posterior circulation, had a higher severity of stroke upon admission and a more complicated trajectory in the hospital the posterior localization was not independently associated with worse outcome.
Anesthetic considerations for the parturient with neurofibromatosis type 1
Authors: Govaerts N , Roofthooft E , Van de Velde M
Published: February 2025

Neurofibromatosis type 1 (NF1) is a relative common genetic disorder affecting multiple major organ systems throughout the body like the central nervous system, cardiovascular system and respiratory system. As life expectancy extends beyond the childbearing years, an anaesthetist may come into contact with a pregnant woman with neurofibromatosis. The aim of this narrative review is to examine the current literature on how to safely anaesthetise the parturient with NF1 and highlight any difficulties that may be encountered. We reviewed two major databases up to May 2023. We conclude that patients with NF1 require a thorough preoperative assessment early in pregnancy, with particular attention to airway management, causes of hypertension and the presence of neuraxial disease involvement. An individual plan for anaesthesia needs to be made based on personal history and symptoms. Currently there is insufficient evidence to provide clear guidelines on the safe use of neuraxial anaesthesia in the NF1 population.
Desenvolvimento econômico: Desafios, oportunidades e o empreendedor de sucesso
Authors: dos Santos Joéliton Alves
Published: February 2025

O presente artigo aborda a relação entre o microempreendedorismo e o desenvolvimento econômico, destacando as principais políticas públicas de fomento ao empreendedorismo, à inovação e ao desenvolvimento sustentável. Realiza-se uma revisão bibliográfica para analisar o histórico do empreendedorismo de pequenos negócios, o perfil de empreendedores de sucesso e a evolução dos processos empreendedores com impacto social, econômico e ambiental. São discutidos também o mundo do trabalho, a qualificação da pessoa empreendedora, os conceitos de empreendedorismo e a legislação que regulamenta as empresas por porte e faturamento. As contribuições de autores brasileiros, especialmente da Bahia, e internacionais enriquecem o debate sobre o papel transformador do microempreendedorismo no contexto econômico e social.
AVALIAÇÃO DA INFLUÊNCIA DOS FITOESTERÓIS NO CLIMATÉRIO. REGULAÇÃO HORMONAL FEMININA: UMA REVISÃO INTEGRATIVA
Authors: Monteiro Aline Fernanda Pereira Costa , Sobreira Talyta Pimentel , Lucena Josué Alves , De Figueiredo Ravi Brito Bezerra , Miranda Filho Estenir , Sousa Ana Cibele Pereira , Noronha Ingrid Bezerra Bispo , Da Silva Débora Thaís Sampaio
Published: February 2025

Introduction: Female hormone regulation is closely linked to food intake, and this fact has been the subject of recent investigation. Studies on energy restriction in women show a decrease in leptin, insulin, testosterone, and thyroid hormones, in addition to an increase in ghrelin and cortisol. Phytosterols (phytoestrogens) have the ability to alleviate postmenopausal symptoms. Carbohydrates, proteins, and fats, in addition to their basic functions, also have endocrine effects on different hypothalamic axes, modulating insulin, leptin, gastrointestinal hormones, sex hormones, among others. Objectives: To prove the influence of diet on female hormone regulation as a whole and the effects of phytosterols on postmenopausal symptoms. Methodology: This is a literature review using the descriptors "dietary management", "hormonal regulation", "macronutrients", "phytosterols" and "menopause" in newspapers, books, articles and magazines published in the last ten years. As inclusion criteria, studies published within the mentioned time period and revisional articles will be considered; As exclusion criteria, duplicate studies or those that do not fit the most recent literature will be disregarded. The databases used will be Lilacs, Scielo, PubMed and Efdeportes.
CRIAÇÃO DE APLICAÇÕES PARA SISTEMA DE TESTE FUNCIONAL COM RASTREABILIDADE PARA CARREGADORES DE CELULAR
Authors: Maues Engº Elvis Jardim , Marinelli Filho D. Sc. Nelson , Guimarães D. Sc. Gil Eduardo , Alavarce D. Sc. Débora Cristina , Trevisol M. Sc. Janyel
Published: February 2025

Este projeto aborda a necessidade crescente de garantir a rastreabilidade e qualidade dos carregadores
de celular em um mercado globalizado, onde a transparência nos processos é fundamental. O objetivo
principal é realizar testes elétricos com rastreabilidade utilizando leitura por QR code e programação
através do software LabWindows/CVI da National Instruments. O estudo inicia com a
contextualização do problema, destacando a importância da rastreabilidade para garantir a qualidade
e confiabilidade dos produtos eletrônicos, como os carregadores de celular. Observou-se a
necessidade de implementar métodos que agilizem o processo de teste, visando maximizar a
eficiência da produção. Os materiais e métodos empregados envolvem a utilização do software
LabWindows/CVI, um ambiente de desenvolvimento ANSI C específico para aplicações de teste e
medição. Além disso, foram realizadas observações no setor de teste de carregadores para identificar
as lacunas no processo e determinar as melhores estratégias para implementar a rastreabilidade. No
processo proposto, a primeira etapa consiste na leitura do QR code da régua e dos carregadores,
organizando-os em sequência numérica para registro em um arquivo .txt. Em seguida, a segunda etapa
realiza a coleta de dados, executa os testes elétricos necessários e gera um arquivo .csv para armazenamento local, juntamente com um arquivo .xml para registro no banco de dados da empresa.
Os resultados incluem a melhoria significativa na eficiência do processo de teste, a garantia da
rastreabilidade completa dos carregadores e a otimização do tempo de produção dos equipamentos.
Psychosocial Factors, And Ergonomic Analysis Musculoskeletal Symptoms Management Personnel In A Public University
Authors: Guzmán Aguirre Mercedes Cecilia , Escalona Evelin , Nieves Plasencia Maura Teresa , Ron Misael
Published: February 2025

Introduction. Musculoskeletal disorders have increased exponentially, affecting various occupations, including administrative staff exposed to prolonged postures and repetitive movements. This study aimed to evaluate psychosocial factors, ergonomic conditions, and their relationship to musculoskeletal symptoms among administrative staff at a public university. Methods. A cross-sectional study with an ergonomic approach and mixed design was conducted. The sample included 149 employees (71% women, 29% men) from 22 departments. Voluntary consent was obtained. The Nordic Questionnaire of Musculoskeletal Symptoms, the Copenhagen Psychosocial Questionnaire (ISTAS 21), and the Helsinki Method for ergonomic assessment were used. Data were analyzed using SPSS 19.0. Results. The average age was 39 years, with 29% overweight and an average tenure of 9 years. Musculoskeletal symptoms were reported in the neck (78%), right shoulder (38%), back (36%), and right wrist (42%). Adverse psychosocial risks included "psychological requirements," "insecurity," "double presence," and "esteem," while favorable factors were "active work," "development potential," and "social support and quality of leadership." The ergonomic analysis indicated a trend of 4 (very inadequate) in workplace design. Conclusions. Musculoskeletal symptoms are highly prevalent, particularly in the neck, shoulders, back, and wrists. Adverse psychosocial conditions and poor ergonomic design contribute to these issues. While some positive psychosocial aspects were observed, it is necessary to optimize job positions through ergonomic interventions and stress management strategies to reduce these risks and improve working conditions.
"Las Meninas" in the clinical description of genetic disorders
Authors: Morales Peralta Estela , Gonzalez-Argote Javier , Alvarez Fornaris Miguel Alfonso
Published: February 2025

Introduction: Las Meninas (The Family of Philip IV) continues being a topic of active research in the field of Medical Sciences. In this painting, three distinct planes can be differentiated, the foreground features the Infanta and her ladies-in-waiting and two court jesters along with a mastiff; and in the background, we find the image of the Monarchs reflected in a mirror.Objectives: To analyze the characters portrayed in the foreground of "Las Meninas", using contemporary clinical genetics concepts. Additionally, it seeks to explore the potential genetic significance of the reflection of the royal couple in the mirror, highlighting its relevance in the era of Genomic Medicine.Methods: A documentary research was conducted, identifying 47 documents through three independent searches in the following databases: PubMed/Medline, Google Scholar and OMIM. Moreover, recommendations from experts in the field were incorporated. Subsequently, two researchers scrutinized independently the articles in their entirety, and both concurred on the recommendation of the inclusion of 32 articles. After conducting a qualitative evaluation, a comprehensive review was generated.Results: Within this painting, there are depicted clinical signs that are sufficient to suggest diagnoses of achondroplasia, Laron syndrome and McCune-Albright syndrome. Furthermore, it serves as an illustrative tool to distinguish the characteristics associated with autosomal dominant inheritance in the Habsburg Syndrome; the observation of this artwork provides an invaluable exercise for honing clinical skills.Conclusions: In the foreground of the painting "Las Meninas," discernible clinical signs in the depicted characters lead us to propose dysmorphic disorders of genetic origin as potential diagnostic hypotheses.The visual observation of Velázquez's genius, captured in this artwork is still decisive as part of the clinical examination in the diagnostic process, especially in the era of Genomic Medicine.
PHYSIOLOGY OF PROLONGED WATERLOGGING STRESS IN SEEDLINGS FROM WILD Carica papaya L. PLANTS COLLECTED AT YUCATAN, MEXICO
Authors: González Oviedo Nelly Abigail , Fuentes-Ortíz Gabriela , Santamaria Jorge M.
Published: February 2025

Background: Papaya (C. papaya L.) is one of the most economically significant fruit crops in Mexico, as it is the leading global exporter. Although Yucatán is not among the country's top producing states, it holds great importance as the center of origin and distribution for this crop. This explains the current presence of wild papaya populations in unperturbed remote sites within the Yucatan State, which can serve as a genetic source for genetic improvement of current cultivated varieties, as they exhibit a higher level of tolerance to stress factors such as waterlogging caused by climate change. Therefore, it is essential to characterize the physiological response of these wild genotypes to abiotic stress factors. Objective: To characterize the physiological response to prolonged waterlogging stress of wild C. papaya genotypes. Methodology: A system was designed to induce waterlogging in three-months-old C. papaya plants. Plantlets were subjected to waterlogging (100% of roots submerged) for seven days. During the waterlogging stress, the following variables were measured every 24 hours: PSII efficiency (Fv/Fm), photosynthesis, transpiration, stomatal conductance, leaf loss, and petiole binding angle. Data collected from each parameter were analyzed using student t test analysis. Results: Seedlings from wild papaya populations exhibited a rapid response to waterlogging stress of some photosynthetic parameters, and with prolonged exposure, the plants eventually lose several leaves but papaya wild seedlings survive after 7 days of waterlogging (pw). Transpiration and stomatal conductance variables dropped after 24 hours pw and remained low throughout the experiment. Leaf loss began to be noticeable at around 72 hours pw. Additionally, leaf inclination angle exhibited variations starting from 24 hours pw, probably related to epinasty caused by ethylene accumulation. However, Fv/Fm remained high even after 7 d of being waterlogged.  Implications: The results suggest that waterlogging stress has an impact on the physiology of wild papaya plants, however, this rapid response of closing stomata and maintaining photosynthesis could be a mechanism to tolerate this stress. The fact that wild papaya plants were able to maintain high values of Fv/Fm even after 7d of waterlogging, might be associated to waterlogging tolerance, as there are reports that in commercial papaya cultivars, this parameter rapidly decline during the first 24h to values much lower than those found here for wild papaya plants. Conclusions: It is necessary to perform further comparative studies between wild papaya genotypes vs commercial papaya cultivars and assess the performance of wild papaya plantlets during recovery periods once the stress is released.
ROOTSTOCK AND SCION INTERACTIONS UNDER CONDITIONS OF SOIL WATER DEFICIT IN AVOCADO
Authors: Reyes-Santamaría Ma. Isabel , Trejo Carlos , Barrientos-Priego Alejandro F. , Terrazas Teresa
Published: February 2025

Background. Drought is the main factor that reduces crop yield, and grafting is used to confer resistance traits. Objective. The effect of water deficit on water relations, gas exchange, and proline content was determined in two avocado cultivars, ‘Colín V-33’ and ‘Hass’, grafted onto three clonal rootstocks (‘Colin V-33’ (C), ‘Fuerte’ (F), and ‘Hass’ (H)). Methodology. Two-year-old avocado plants of ‘Colín V-33’ and ‘Hass’ were grafted onto three rootstocks: ‘Colin V-33’, ‘Fuerte’, and ‘Hass’.  The plants were grown in a greenhouse for 1.4 years. From that point, half of the grafted plants remained without irrigation, while the other half was watered every other day. Stomatal conductance and CO2 assimilation were measured daily, and on day 13, soil and leaf samples were taken for water relations and leaf samples for proline content. Results. The cultivar ‘Colin V-33’ and its combinations showed a conductance of 132 mmol m-2 s-1, while ‘Hass’ reached 150 mmol m-2 s-1.  Both decreased after 7 days without irrigation, with variations in their combinations. CO2 assimilation followed a similar pattern. In well-watered plants, there were no differences in water potential (Yw), but in non-irrigated plants, ‘Colin V-33’ showed a greater decrease in leaf Yw, whereas in ‘Hass’, this occurred in the H/H and H/F combinations.  The osmotic potential (Yp) was lower in non-irrigated plants with ‘Hass’, especially in C/H and H/H (-1.80 and -1.81 MPa respectively).  Turgor potential (Yr) was unaffected. Proline concentration was higher in all combinations, particularly in H/H and H/F. Implications. Grafting is useful for identifying cultivars sensitive or resistant to water deficit. Conclusion.  The combinations with ‘Colin V-33’ show the best water use efficiency and greater resistance to water deficit.  The scion/rootstock interaction significantly affects gas exchange, water relations, and proline concentration under water deficit. Low proline concentrations in this species appear linked to water deficit resistance.
FISIOLOGÍA DEL HELECHO ACUATICO Salvinia minima AL SER EXPUESTO A METALES COMO Pb, Ni, Cu, Zn y Li
Authors: Fuentes Gabriela , Leal-Alvarado Daniel , Fuentes-Franco Ignacio , Hoffmann Tony , Kutter Claudia , Uh-Ramos David , Trejo Katiana , Estrella Neyi , Carrillo-Niquete Gerardo , Gómez-Hernández Eduardo , Santamaría Jorge M
Published: February 2025

Background: Metals can be found in nature, but they are also generated by anthropogenic activities associated with technological waste, such as batteries and electronic components. These metals, when released to the environment may contaminate and cause significant health damage. Phytoremediation is a process to de-contaminate water bodies from metals using plants. Obviously, those plants should be able not only to uptake high amounts of metals, but also, they should be able to tolerate those high concentrations in their tissues.  Salvinia minima is a fast-growing, floating aquatic fern and its ability to take up metals from the environment has been evaluated. Objective: To characterize the physiological and molecular response of Salvinia minima plants exposed to different metals. Methodology: A system was designed to expose Salvinia minima plants to different metals such as Pb, Ni, Cu, Zn and Li, for seven days at different concentrations levels and take samples every 24 h. Various parameters were evaluated including metal uptake, metal concentration in the medium, leaf appearance, PSII efficiency (Fv/Fm), photosynthesis, transpiration, stomatal conductance. Results: S. minima plants were capable to accumulate Pb (28 mg /g DW at 40 uM), Zn (10 mg/g at 80uM) Li (10 mg/g at 20mM), Cu (8 mg/g at 40 uM) and Ni (4 mg/g at 40 uM), at their roots. At short times (0-24 h) and at low concentrations (of certain metals) no significant physiological damage was observed, however, at high concentrations or longer exposure times (48-144 h), physiological damage can be observed in terms of decreased photosynthesis and PSII efficiency, transpiration and stomatal conductance. Implications: Salvinia minima plant are capable to take Pb, Ni, Cu, Zn and Li from the medium, which indicates that it is a good candidate to be used in the phytoremediation of water bodies contaminated with these metals. Conclusions: Salvinia minima plants take up and accumulate high concentrations of Pb, Ni, Cu, Zn and Li in their tissues, thus reducing the metal content of aqueous media. Even though at high concentrations those metals may affect its physiological performance, this occurs at much higher concentrations than those normally found in natural water bodies, therefore S. minima is certainly a good candidate to be used for the phytoremediation of water bodies contaminated with metals.
EVALUACIÓN DE LA ACTIVIDAD ANTIOXIDANTE Y ANTIBACTERIANA DE LAS HOJAS DE Hamelia patens Jacq. Y Cecropia peltata L.
Authors: Montufar-Canto Deanela De los Angeles , González Salvatierra Claudia , Hernández-Chávez Luis Ignacio , Uc-Cachón Andrés Humberto , Molina-Salinas Gloria María
Published: February 2025

Background: In the Yucatán Peninsula, essential information is available on the traditional use of medicinal plants, however, their biological activity is still unknow, such as Hamelia patens (Coralillo, X k’anan) and Cecropia peltata (Guarumbo, K’ooch k’aax), both species are used to treat respiratory, digestive, and skin infections. Considering the therapeutic potential of medicinal plants as exceptional sources of natural products that exhibit antioxidant properties and are capable to combating drug-resistant bacteria, we explored the potential of these two plants species to act against free radicals that cause various diseases due to cellular oxidative damage, and to control multi-resistant pathogens. Objective: To determine the antioxidant and antibacterial activities of the extracts and fractions of H. patens and C. peltata leaves against drug-resistant Staphylococcus aureus, Escherichia coli, and Acinetobacter baumannii. Methodology: Antioxidant activity was determined using the 2,2-diphenyl-1-picrylhidrazyl (DPPH) assay and antibacterial activity was determined using the resazurin micromethod. Results: Hamelia patens and C. peltata leaves extracts exhibited DPPH radical-binding capacity, and the ethyl acetate fraction showed a high antioxidant capacity. In contrast, the extracts and fractions did not show antibacterial activity against S. aureus, E. coli, and A. baumannii at the concentration range evaluated. Implications: The collection season, methods, and concentrations used can affect bioactivity. For further studies, it is necessary to characterize the secondary metabolites and obtain a complete antioxidant profile, and even test them against other bacterial species.  Conclusion: The extracts and fractions of the leaves of H. patens and C. peltata showed antioxidant activity but not antibacterial properties, on the species and drug-resistant strains. Thus, the ethyl acetate fraction is a potential candidate for further investigation. The development of new drugs is essential for combating diseases, and medicinal plants provide a promising alternative, as demonstrated for both species in the Mayan Peninsula.
FITONANOPARTÍCULAS BIMETÁLICAS DE Crotalaria longirostrata Y SU EFECTO ACARICIDA SOBRE Tetranychus urticae
Authors: León Jiménez Eugenia , Cua Basulto Marcos , Garruña Hernández René , Gutiérrez Miceli Federico , González Mendoza Daniel , Ballina Gómez Horacio , Herrera Gorocica Angel , Ruiz Sánchez Esaú
Published: February 2025

Background. Tetranychus urticae Koch is a species of phytophagous mites with wide importance in the production of fruit and horticultural crops, as well as ornamental species. A strategy that can contribute successfully to the management of mites is the use of metallic phytonanoparticles (NPs) synthesized from plant extracts. Objective. To evaluate the acaricidal effect of chipilín (Crotalaria longirostrata) bimetallic NPs on T. urticae and its phytotoxic activity in eggplants (Solanum melongena). Methodology. To evaluate mortality, groups of mites were exposed to eggplant leaf discs treated with (NPs), and mortality was recorded at 48 and 96 h. To evaluate the quantum efficiency of chlorophyll, photochemical parameters were measured in the leaves of eggplant plants 40 days after emergence. Results. The NPs of Cu-Zn at concentrations of 100 and 150 ppm caused more than 70% mortality in T. urticae adults, whereas the NPs of Ag-Zn at concentrations of 50, 100 and 150 ppm caused more than 80% mortality in T. urticae eggs. The application of bimetallic NPs from C. longirostrata did not cause toxic stress in eggplant plants, as the quantum efficiency of photosystem II was not affected. Implication. The use of C. longirostrata bimetallic NPs may be an alternative to the chemical acaricides for the management of T. urticae. Conclusion. The NPs of Cu-Zn and NPs of Ag-Zn produce more than 70% mortality in T. urticae adults and eggs.
APLICACIÓN DE TELEDETECCIÓN EN LA ESTIMACIÓN DE RENDIMIENTOS EN CULTIVOS AGRÍCOLAS: UNA REVISIÓN BIBLIOMETRICA
Authors: Gutierrez Mora Irene , Hernández Cázares Aleida Selene , Hidalgo Contreras Juan Valente , López Ayala Jose Luis , Velasco Velasco Joel
Published: February 2025

Background: Agriculture, as a fundamental sector of the global economy, plays a key role in the socioeconomic fabric of countries. Obtaining accurate information on crop area and production is essential for promoting more efficient agricultural practices. Remote sensing has transformed modern agriculture by providing precise, real-time data on crop conditions. Bibliometric studies use quantitative methods to analyze the production and distribution of scientific information contained in various documents, aiding the understanding of knowledge trends in a specific area. These studies help to identify the evolution of remote sensing applied to agriculture. Objective: To analyze research on yield estimation/prediction in agricultural crops through satellite remote sensing in agricultural sciences. Methodology: Documents were retrieved from the Scopus® database using the equation “yield estimation AND crop AND satellite image OR mapping.” An exploratory analysis was conducted using Microsoft Excel®, and a bibliometric analysis was performed using VOSviewer® software. Results: A total of 818 documents from 1975 to 2023 were analyzed, grouped into six clusters, with prominent terms including deep learning, Sentinel 1 and 2, leaf area index, satellite, and digital mapping. The leading countries in scientific production are China and the USA. The main contributing fields of knowledge are Earth and Planetary Sciences (24%), Agricultural and Biological Sciences (18%), and Computer Science (17%). Implications: This study contributes to the synergistic exploration of agriculture, advanced data analysis techniques, and remote sensing to improve yield estimation by integrating satellite imagery and geographic data to enhance calibration and spatiotemporal accuracy. Conclusions: Four key components were identified in yield estimation through satellite imagery: 1) Artificial intelligence tools, 2) Use of NIR and SWIR bands, 3) Use and generation of NDVI, LAI, and biomass indices, and 4) Statistics applied to data science, correlation coefficients, and time series analysis.
ANÁLISIS ESPACIO TEMPORAL DE LA PRODUCCIÓN CIENTÍFICA SOBRE POLINIZADORES EN MÉXICO
Authors: Santillán Fernández Alberto , Santés Juárez Blanca Nayelli , Bautista Ortega Jaime , Loeza Concha Henry Jesús , Vera López Javier Enrique , Carmona Arellano Mauricio Antonio , Vázquez González Iban , Tadeo Noble Alfredo Esteban
Published: February 2025

Background: Due to the loss of pollinator diversity caused by anthropogenic activities and climate change, research on pollinators has increased. However, there is still limited research identifying opportunities for developing new knowledge. Objective: To analyze, using bibliometric techniques, the research published in scientific articles on pollinators, to identify areas of research opportunity that have been poorly developed. Methodology: Scientific articles on pollinators available in the main academic publishers (Elsevier, MDPI, Scopus, Springer and Taylor & Francis, Wiley Online Library, and Frontiers), websites (Conricyt, Scielo, Redalyc, Latindex, Periodica, and Doaj) and the web search engine Google Scholar were compiled. The keywords used in the search of the texts were polinizadores and pollinators, identifying them in the titles and keywords of the publications. Through a content analysis and applying bibliometric tools, indicators were generated on the frequencies of pollinator species, pollinated plant species, research institutions and research topics developed in each text. Results: From 1986 to 2022, a total of 982 scientific articles on pollinators were published internationally, with exponential annual growth. In the case of Mexico, 316 texts were documented, where bee species were more frequently the object of study, and the pollinator-plant interaction was analyzed more frequently for species with commercial value such as agricultural, fruit, horticultural and agavaceae species. Furthermore, the research was largely coordinated by the National Autonomous University of Mexico, spatially located in central Mexico. Implications: The theoretical nature of the findings should be considered as a way to expand the state of the art, so it is suggested that subsequent studies focus on the practical application of scientific findings, especially for the southeastern region of Mexico, expanding the range of analyzes for pollinator species and pollinated plant species. Conclusion: There is an opportunity to generate more research on pollinator species such as bats, hummingbirds, butterflies, and arachnids, as well as topics related to bee health and nutrition. Additionally, more research is needed to study plant-pollinator interactions in plant species like forest trees, cacti, and ornamental plants. There is also a need to strengthen research conducted in southeastern Mexico, where the greatest diversity of pollinators and plant species is historically located.
DOSIS Y TIEMPOS DE IMBIBICIÓN DE PERÓXIDO DE HIDRÓGENO EN LA GERMINACIÓN Y CRECIMIENTO INICIAL DE ALGODÓN (Gossypium barbadense L.)
Authors: Morales Pizarro Arturo , Rondoy-Castro Doris , Escobedo-Huancas Pierina , Durante-Montejo Esther , Veramatus-Mendoza Angie , Juárez-Vílchez Jonathan , Morocho-Romero Henry , Chanduvi-García Roger , Quiroz-Calderón Marcos , Calero-Merino Mariano , Peña-Castillo Ricardo
Published: February 2025

Background: Cotton is a crop of great socioeconomic interest in the textile industry in Peru, however, it is sown directly in the field where it presents irregular germination. Objective: To evaluate the effect of four doses of hydrogen peroxide and two imbibition times on the germination and initial growth of cotton. Methodology: The commercial hydrogen peroxide CP (H2O2 at a concentration of 3 g 100 mL-1) was used in the treatments: T0 (control- distilled water), T1 (10% CP), T2 (30% CP), T3 (50% CP), T4 (100% CP) subjected to 6 and 12 h of imbibition. Germination evaluations were made: germination percentage (GP), germination speed (GS), germination index (GI), Biometry: seed weight (SW), stem length (ST), number of leaves (NL) and root length (RL). Stem biomass: fresh weight (SFW) and dry weight (SDW), and root biomass: fresh weight (RFW) and dry weight (RDW). Results: T3-6 h improved germination variables. T1-6 h improved biometry and biomass variables. SW presented a negative correlation with NL. NL was positively correlated with SDW. SDW was positively correlated with SFW. Also, SFW with RL, RDW and RFW. RL with RDW. RDW with RFW and ST. The RFW with ST. Implications: The use of H2O2 increases germination and biomass of cotton seedlings. Conclusion: T3-6 h improved germination variables. However, T1-6 h improved biometry and biomass variables.
IDENTIFICACIÓN DE HONGOS ENTOMOPATÓGENOS PARA EL CONTROL BIOLÓGICO DE Diaphorina citri EN ÁRBOLES DE CÍTRICOS
Authors: Landa-Cadena M. G. , Trigos A. , Hernández-Rosas F. , Salinas-Castro A.
Published: February 2025

Background. Entomopathogenic fungi represent a sustainable alternative to reduce populations of the asian citrus psyllid Diaphorina citri, which acts as the vector of the pathogen Candidatus Liberibacter asiaticus, responsible for Huanglongbing (HLB) in citrus fruits. Objective. To identify morpho-taxonomic and molecular endophytic entomopathogenic fungi in persian lime, for use in the biological control of D. citri Veracruz. Methodology. The study was carried out in a persian lime Citrus latifolia crop in the Martínez de la Torre district, Veracruz, sampling was directed at trees that had myconized D. citri adults, on branches with tender shoots and mature leaflets. The fungi were isolated, purified and identified morphologically and morphometrically, and corroborated by molecular biology, through DNA amplification and sequencing of the ITS intergenic region. Under greenhouse conditions, the strains were inoculated by the method of flooding conidia in the basal part of stems and root system of Persian lime plants. In each treatment, 100 nymphs of the second stage of D. citri were released to evaluate the percentage of myconization and its endophytic establishment of fungal strains.  Results. The taxonomic morphology of the reproductive structures of the identified fungal species and compared with the sequences reported in the Gen Bank, gave high identity with the endophytic entomopathogenic fungi Acrodontium crateriforme, Hirsutella citriformis, Isaria fumosorosea, Metharizium anisopliae, Trichoderma harzanium, for the strain A. crateriforme is first time that it was found miconizing D.citri naturally. Implications. These findings indicate new areas of study related to endophytic entomopathogenic fungi as biological control agents, which can influence the regulation of asian psyllid populations, to reduce the incidence of the spread of HLB in citrus growing areas. Conclusions. The strains A. crateriforme were identified with a mortality percentage of 90%, M. anisopliae with 85%, H. citriformis with 68%, I. fumosorosea 65% and T. harzianum with 50%, they had an endophytic entomopathogenic behavior, and it was shown that the five strains colonized persian lime trees by the method of direct flooding of conidia at the base of the stem and roots, mummifying adults of the citrus psyllid under greenhouse conditions.
RESPUESTA AGRONÓMICA DE HÍBRIDOS DE MAÍZ BAJO RIEGO Y SECANO EN DOS DENSIDADES DE SIEMBRA EN VALLES ALTOS DE MÉXICO
Authors: Alonso Sánchez Homero , Tadeo Robledo Margarita , Espinosa Calderón Alejandro , López López Consuelo , Zaragoza Esparza Joob , Turrent Fernández Antonio , Mora García Karina Yasmin
Published: February 2025

Background. In maize production, irrigation water as an input with monetary value should increase the benefit; rain is the most sustainable source of water, but it does not ensure benefit. Objective. To evaluate the agronomic response of corn hybrids under irrigation and rainfed at two sowing densities. Methodology. The experiment design was factorial in complete randomized blocks and three repetitions with: genotypes (G) ten materials (G1…G10), two levels of humidity (H) such as irrigation (H1) and rainfed (H2), two planting densities. (D) with D1= 55 thousand plants ha-1 and D2=75 thousand plants ha-1, in two environments (A) in the State of Mexico; Cuautitlan (A1) and Texcoco (A2). Results. The general mean of grain yield was 7.1 t.ha-1 and water use 10.7 kg.mm-1. The results of these variables successively for the factors were: The hybrid (IA249AE X FSN 87) X GNF resulted with the highest means 8.9 t.ha-1 and 13.35 kg.mm-1; irrigation presented a higher yield of 7.39 t.ha-1, but rainfed was higher in water use with 11.41 kg.mm-1; Cuautitlán was higher with 9.4 t.ha-1 and 13.4 kg.mm-1; the D1 density was higher with 7.19 t.ha-1 and 10.75 kg.mm-1. The first-order interactions were significant, at least in one response variable. Implications: Additional research is required about water corn productivity to identify the potential of genotypes of corn in Mexico Basin. Conclusions. Rainwater availability had a greater effect than irrigation on corn hybrid grain yield and water use in Cuautitlán, and irrigation was less productive at that site. The higher population density responds to the availability of more resources such as water.
ANTIBIOTICS USE AND AWARENESS OF RISKS ASSOCIATED WITH ANTIMICROBIAL RESISTANCE AMONG FISH FARMERS IN KATSINA STATE, NIGERIA
Authors: Dauda Akeem Babatunde , Nababa Abdulsalam Sani , Oshoke Justina Omolegho , Salele Hauwau Abubakar , Odetokun Ismail Ayoade , Ghali-Mohammed Ibraheem , Bello Oluwasesan M. , Dasuki Awawu
Published: February 2025

Background. Disease outbreaks are considered to be a significant drawback in aquaculture development globally which leads aquaculturists to indiscriminate use of antibiotics. Objective. To assess the status of antibiotics use, farmers’ knowledge of risks associated with antimicrobial resistance (AMR), and disease occurrence in fish farms in Katsina state, Nigeria. Methodology Semi-structured questionnaires were  administered to the active and accessible fish farms in the state, The data collected were presented and analyzed using descriptive statistics and binary logistic regression. Results: Most of the respondents were male (87.5%), aged 31 to 40 years and average of 7 years in operation. The majority (78.1%) use antibiotics for curative purposes, and the dominant usage frequency was occasional (28.1%). Majority (75%) of the respondents noted that antibiotics are readily available and moderately priced (46.9%) while the method of addition to water (37.5%) was the most frequently. Fish cure™ (37%), Aquaceryl plus™ (26%) and Oxytetracycline (10%) were the most commonly used antibiotics in the state. Most of the respondents (65.6%) are aware of the risks associated with AMR for fish but many of them (56.2%) are not aware of possible risks associated with consuming fish with antibiotic residue. Disease occurrence is very high (78.1%) among the farms in the state, with the majority (59.3%) having experienced outbreaks between one and three times.  Despite the small scale of fish farming in the state, the mean economic loss due to disease outbreaks stood at ₦594, 605.3±0.21 (USD 371.63). The logistic regression model revealed that years in operation is the major factor influencing the use of antibiotics (P=0.072) and the occurrence of fish diseases (P=0.055) in fish farms in the state. Implication: Antibiotics is highly used in fish farms in the state without prescription by the veterinary experts and the majority of the farmers are not aware of risk associated with consuming fish with antibiotic residue. Conclusion.The study collectively provide a foundation for informed decision-making, targeted interventions, and future research directions in the realm of sustainable and responsible aquaculture practices in Katsina state.
Cardiología Clínica y Quirúrgica: Enfermedades Vasculares y Abordajes Innovadores
Authors: Coba López Anahí de los Angeles , Peña Tamayo Eduardo Moisés , Navas Silva Darwin Javier , Gaibor Mendoza Napoleon Marcos , Castro Rosero Ricardo Vinicio
Published: February 2025

Las enfermedades cardiovasculares siguen siendo una de las principales causas de morbimortalidad a nivel mundial, lo que exige un enfoque actualizado y multidisciplinario para su diagnóstico y tratamiento. "Cardiología Clínica y Quirúrgica: Enfermedades Vasculares y Abordajes Innovadores" es una obra que reúne los últimos avances en el manejo de patologías cardiovasculares, combinando estrategias clínicas con técnicas quirúrgicas innovadoras para ofrecer una visión integral del tratamiento de estas afecciones.