bluuebunny/crossref_metadata_2025 huggingface dataset:
La gamificación como estrategia para el fortalecimiento de competencias en el bachillerato técnico en informática, de la ciudad de Zumba, Caso Ecuador
Authors: Guaicha-Guaicha David Isaac , Guayano-Mejía José Armando , Reigosa-Lara Alejandro , Tobar-Farias Galo Wilfrido
Published: June 2024

El presente estudio aborda la problemática de la baja motivación y rendimiento en el aprendizaje de informática en el bachillerato técnico en la ciudad de Zumba, Ecuador. El objetivo principal es analizar el impacto de la gamificación en el fortalecimiento de competencias técnicas y transversales en los estudiantes. La metodología empleada fue un enfoque mixto (cualitativo y cuantitativo), utilizando técnicas como observación directa, entrevistas estructuradas y cuestionarios, y herramientas como rúbricas de evaluación y análisis estadístico con SPSS. Los resultados mostraron una mejora significativa en la comprensión y aplicación de conceptos en sistemas operativos, lenguajes de programación, electricidad básica, normas de seguridad y circuitos eléctricos tras la implementación de estrategias gamificadas. La gamificación incrementó la motivación y participación activa de los estudiantes, facilitando un ambiente de aprendizaje dinámico y colaborativo. En conclusión, la gamificación se demostró como una herramienta eficaz para mejorar la motivación, comprensión y habilidades prácticas de los estudiantes en informática. Se recomienda una mayor personalización de los juegos, capacitación para los docentes en herramientas gamificadas y una mayor inversión en recursos tecnológicos para optimizar futuras implementaciones.
Motricidad gruesa enfocada en el equilibrio y coordinación de movimiento, de los niños y niñas de la Unidad Educativa Santiago Apóstol de la ciudad de Guayaquil
Authors: Escobar-Cabello Karen Stefania , Zuñiga-Delgado Mireya Stefania
Published: June 2024

El presente trabajo de Investigación, tiene como principio básico hacer mención a un derecho fundamental que está consagrado en la Constitución política del Ecuador, como es el derecho a la educación, pero a una educación de calidad y calidez, donde se incluya los aspectos sociales, culturales; es decir la diversidad misma que caracteriza a cada persona y para este caso particular a los niños.
 
Se ha partido del hecho que el juego es la actividad más sui géneris e importante con la que nace el ser humano; por ello nos permitimos enmarcar a niños en su bienestar emocional, social, físico y cognitivo con la finalidad de lograr potencializar sus capacidades e interés con cada actividad lúdica que realicen.
 
Esta investigación se enfoca en obtener los resultados útiles que los aspectos lúdicos son fundamentales para el desarrollo de la motricidad gruesa, principalmente en las edades de 3 a 4 años de edad de la Unidad Educativa Santiago Apóstol de Guayaquil.  Encontraremos un compendio bibliográfico en el que se pudo establecer relaciones entre las variables de investigación y los resultados que se obtienen de las encuestas aplicadas a los docentes de la institución así como de la observación misma que se realiza a los niños y niñas de dicha unidad, con los resultados obtenidos de las tabulaciones respectivas y el análisis de toda la investigación, plantear una propuesta de solución a los inconvenientes que se presentaron, realizar recomendaciones y conclusiones que permitan desarrollar y afianzar mucho más la motricidad gruesa en los niños de la institución.
SÍNDROME DE STIFF PERSON: RELATO DE CASO E REVISÃO INTEGRATIVA
Authors: Alves Maria Luísa de Lúcio Lino , Jovial Lauany de Andrade , Correia Gabriela Hornung , Bubniak Bruna Camylah Ferreira , Chagas Bruna , Silva Karine Emanuele da , Besson Jean Carlos Fernando , Torresan Clarissa
Published: June 2024

A Síndrome de Stiff Person (SPS) é uma doença neurológica autoimune, caracterizada por rigidez dos membros e tronco, que podem estar presentes de modo isolado ou concomitante. Apesar do significativo impacto na autonomia e qualidade de vida dos pacientes, SPS ainda é pouco explorada pela literatura. Objetivos Gerais: apresentar a Síndrome de Stiff Person; relacionar os dados bibliográficos com a prática clínica. Objetivos Específicos: identificar os mecanismos imunológicos envolvidos na patogênese da SPS; relacionar as manifestações clínicas da doença com as limitações cotidianas; elucidar as opções diagnósticas da SPS; analisar a efetividade os tratamentos disponíveis; discutir o prognóstico e sobrevida na SPS; identificar as falhas dos profissionais de saúde no manejo da SPS. O estudo, de caráter descritivo e qualitativo, se dividiu em três etapas: revisão de literatura; relato de caso e análise integrativa dos dados obtidos, comparando as informações dos prontuários com a bibliografia reunida. Concluiu-se que a SPS é uma doença incapacitante que compromete a saúde física e psíquica dos portadores, de forma que diagnóstico e tratamento precoces são fundamentais para proporcionar aos pacientes maior qualidade de vida e controle da doença. Apesar do referido impacto, foram identificadas lacunas do sistema de saúde na investigação e manejo da síndrome.
Resolution of Theft Cases Using Restorative Justice Approaches in Court
Authors: Bahari Roni , Surbakti Natangsa , Iksan Muchamad
Published: June 2024

This research aims to understand how theft cases are resolved using the restorative justice approach in court. This study combines normative and empirical research methods. Subsequently, the collected data were analyzed qualitatively to describe the problem and address the research purposes. The results show that resolving theft cases with a restorative justice approach in court offers a new paradigm that not only focuses on applying retributive justice but prioritizes the processes of restoration and reconciliation between the Accused and the Victim. Through the implementation of Supreme Court Regulation Number 1 of 2024, the stages of case resolution with restorative justice from trial preparation to creating a restorative agreement ensure that the justice pursued is restorative. The effectiveness of this approach depends on the Victim’s willingness to forgive the Accused, the restoration of losses suffered by the Victim, and the Accused’s status as a non-recidivist. Therefore, it is recommended that Judges proactively facilitate dialogue between the Accused and the Victim and ensure that the restorative agreement adheres to the principles of proportionality and substantive justice. Public Prosecutors should more actively identify cases suitable for restorative resolution and prepare proof and physical evidence carefully to support the mediation process. The Accused and the Victim are encouraged to participate openly and honestly in mediation. In particular, The Victim needs encouragement to state their losses and needs clearly, and to consider the option of reconciliation as a step towards recovery. Finally, the community is expected better to understand the benefits and processes of restorative justice, thereby providing broader support for a criminal justice system oriented not only towards delivering retributive justice but also towards restoration and repairing social relationships in the future.
Grigore Cugler și apunakismul. De la prozele scurte din Apunake și alte fenomene la Afară-de-Unu-Singur
Authors: Foitoș Alexandru
Published: June 2024

This article continues a previous approach on Grigore Cugler’s avant- garde texts (re)exploration and (re)discovery, Grigore Cugler și dimensiunea spectaculară a „romanului” Apunake / Grigore Cugler and the spectacular dimension of Apunake ‘novel’ (2023). As it is already known, Grigore Cugler represents a writer often associated with Urmuz, one of the central models of Romanian avant-garde literature. By using close reading methods with connections to stylistic analysis, the article focuses on the short stories that accompany the false ‘novel’ Apunake from the volume Apunake și alte fenomene (1934), such as Match nul, Logodin, Criptomestrula, Drumul dragostei, Scrisoare, and Erată. By continuing a previous approach on which we highlighted the way the poetics of the absurd spectacular is presented in Cugler’s texts, we aim to show a perpetuation of the writer’s specific poetics, that of apunakism. Apunakism represents a form of manifestation of Grigore Cugler’s poetics of absurd in his avant-garde texts, characterized by the presence of ‘twists and turns’ type of situations, ‘upside-down’ and alienated characters, alternate worlds, linguistic and stylistic mechanisms and experiments that continuously surprise the reader. We will also observe the perpetuation of this specific poetics and a particular narrative discourse of the writer crystallized in the texts from the 1934 volume to the 1946 volume, Afară-de-Unu-Singur.
Ghostbeing: Interpretation of The Process of Wellbeing by Iza Kavedžija through a Hauntological Perspective
Authors: Peng Sheng Hsiang Lance
Published: June 2024

This review uses hauntological frameworks to scrutinise Kavedžija’s work, The Process of Wellbeing. Throughout the discourse, I encapsulate the notions, conceptualisations, and instances expounded in this scholarly work, positing that the integration of hauntology into wellbeing perspectives proffers substantive insights. Elaborating on Kavedžija’s contentions, I accentuate the importance of interconnectedness between historical antecedents and contemporary circumstances in configuring the comprehension of wellbeing.
Tematizări (neo)shakespeariene în rescrierea Hamletului: un nor în formă de cămilă de Alina Nelega
Authors: Bodiștean Florica
Published: June 2024

The study focuses on ways to resignify the themes and characters of Shakespeare’s Hamlet, ways in which the novel un nor în formă de cămilă by Alina Nelega rewrites in the narrative the influential play from the perspective of its affective dimension, with emphasis on the mother–son relationship. The procedures of updating the plot and valuing a secondary character in the hypotext (Gertrude), as well as transforming a heterotopic, theatrical space into a supercharacter who ends up playing the role of destiny for the human universe involved are the lines on which the analysis of this recent Shakespearean palimpsest develops. The study also provides a comparative insight into the versions of Shakespeare's tragedy in contemporary times in order to reveal the regenerative capacity of masterpieces.
Anglicisme recente în domeniul modei
Authors: Radu Călugăru Voica
Published: June 2024

The constant penetration of anglicisms in the vocabulary of the Romanian language in all fields of activity is a characteristic of the current dynamics of the lexicon. The fashion field excels in this regard and faces an accentuated dynamic generated by a series of factors: the opening of the field itself to the new, the lexicon with an international character, the activity of influencers, bloggers, content fashion designers who use a language that abounds in lexical elements borrowed from English. In this article, we aim to point out the presence of recent Anglicisms in the field of fashion, frequently used in specialty publications, in the virtual space by influencers, but also by the ordinary consumer and speaker who consults different clothing sites and is confronted with new lexical structures, from English, mostly not recorded by the academic dictionaries of the Romanian language.
Verbele cu particulă adverbială şi verbele prepoziţionale din limba engleză: dificultăți și capcane din perspectiva vorbitorului nativ de limbă română
Authors: Margan Manuela
Published: June 2024

The aim of this study is to investigate the multi-word verbs, which are very common in English, but are acknowledged as difficult to acquire by non- native learners of English. Phrasal verbs and prepositional verbs serve an idiomatic purpose. Therefore, they should not be taken literally; rather, they have a figurative or metaphorical meaning. The existence of a simple notional verb in a synonymic relationship with a verb with an adverbial particle determines the non-native English speakers to avoid the latter. From the perspective of the Romanian language, where such constructions do not exist, it is obvious that the attempt to avoid verbs with an adverbial particle and the preference for simple verbs will be more significant as the semantic transparency of the English verbal construction is reduced.
EL ESTRÉS LABORAL DEL DOCENTE: REFLEXIONES DESDE LA INTELIGENCIA EMOCIONAL
Authors: Amparo Rodríguez Rincón
Published: June 2024

Las líneas de este ensayo tienen como objetivo discutir teóricamente acerca del estrés laboral de los docentes y las reflexiones críticas desde la inteligencia emocional, en el campo educativo, especialmente al tener la experiencia como psicóloga con desempeño en salud laboral en Bucaramanga, mediante la cual se han conocido diversos casos relacionados en Bucaramanga, Colombia. En este sentido se presenta como cuerpo del escrito una discusión problémica del asunto, la complejidad como marco de interpretación reflexiva, la construcción teórica y las conclusiones reflexivas. Se destaca que específicamente en lo teórico se hizo énfasis en el estrés laboral de los docentes, la inteligencia emocional frente al estrés laboral docente, la educación como marco del desarrollo de las competencias emocionales del docente y se culmina con las reflexiones acerca de las competencias socioemocionales del docente, desde la inteligencia emocional. Estos aspectos teóricos abordados se asumen como elementos que pueden ser revisados y ampliados, a los fines de brindar orientaciones, desde la educación emocional, a los docentes y promover que se haga el conocimiento adecuado y la puesta en práctica de herramientas que permitan, autoconocerse, autogestionar las emociones, relacionarse de manera asertiva, educarse y educar a otros en el marco del desarrollo personal.
CONSTRUCTOS TEÓRICOS DE LAS REPRESENTACIONES SOCIALES DE LOS ACTORES EDUCATIVOS DESDE LA FORMACIÓN ÉTICA Y DE LAS COMPETENCIAS CIUDADANAS CON ESTUDIANTES DE EDUCACIÓN BÁSICA EN CONTEXTOS RURALES Y DE VULNERABILIDAD
Authors: Arley Becerra Gómez
Published: June 2024

El presente articulo pretende abordar la investigación que tiene como objetivo principal generar constructos sobre la base de las representaciones sociales de los actores educativos desde la formación ética y las competencias ciudadanas con estudiantes de educación básica en contextos rurales y de vulnerabilidad, la investigación presenta una sustentación que aborda una discusión paradigmática del pensamiento complejo, la interdisciplinariedad y la transdisciplinariedad propuesto por los filósofos como Morín, Foucault, Bunge, entre otros. Metodológicamente el estudio se enmarca desde el enfoque cualitativo. Desde la dimensión ontológica utilizó el paradigma interpretativo con desde la fenomenología, donde el estudio se da el contexto rural y su relación con la construcción social provenientes de perspectivas subjetivas. Así mismo, las técnicas de recolección de información fueron: la observación participante y la entrevista con preguntas estructuradas. Donde los hallazgos revelaron que el deber es apoyar y permear todo lo que en la institución se desarrolle, aceptando que deben manejar mejor su tiempo para dedicarlo al desarrollo de competencias ciudadanas. También se encontró que deben existir mejores prácticas a nivel de participación, resolución de problemas, debates y actividades didácticas porque se enfocan a la FE y CC, entendiendo que estas se acercan mucho al plano social. Los padres aportaron que debe existir un acercamiento desde un nuevo factor para la sostenibilidad académica desde esas estrategias como una manera más efectiva de interiorizar y afianzar la ética y las competencias ciudadanas en contextos rurales y vulnerables.
Numerical Simulation of Forming a 3D Shape by a Multi-Point Die
Authors: Ghuraibawi Alyaa Al , Abed Aseel Hamad , Mansor Khalida Kadhim
Published: June 2024

Multi-point forming (MPF) is considered one of the flexible and creative three-dimensional sheet metal forming processes. Such a technique replaces traditional rigid punches with a set of adjustable-height discrete pins. By altering the relative height of each pin, a variety of three-dimensional curved surfaces can be formed. In order to avoid changing the height of the pins manually, they are attached to springs. Hence, when a load applies at the pins holder, these will take the shape of the die due to the spring properties quickly and easily. However, wrinkles and dimples are inevitable issues that appear when using MPF. In order to investigate and minimize these defects, a finite element approach using ANSYS 15.0 software has been applied to perform numerical simulations for this MPF operation. Two cases have been examined in this study. Whilst the first one includes direct forming between the pins and the metal, a sheet of rubber has been added among them in the second case. The simulation has been conducted on brass (Cu Zn 65-35) with a thickness of (0.71 mm) and rubber with a thickness of (2 mm). The boundary conditions, which are attached to the blank, enable the motion in the y-direction only with respect to the lower profile at a depth of (30) mm, and was immobilized by constraints in the x and z direction. The study has shown remarkable results since the dimples were visible on the sheet surface in the first case, whereas these defects were significantly reduced during the second one. Moreover, the blank profile’s maximum stress and strain have been studied. Due to force distribution, rubber reduces maximum stress and strain to approximately 27% and 49%, respectively, in the second case
A Comprehensive Investigation of Brushless Direct Current (BLDC) Motors: Current State, Advanced Control Strategies, and Utilization Systems
Authors: Akram Suhair , Aljanabi Mohanned
Published: June 2024

In the field of dynamic applications, specifically within automotive, pumping, and rolling sectors, there exists a noteworthy preference for the use of Brushless Direct Current (BLDC) motors. Projections show that, by the year 2030, BLDC motors are poised to supersede classic induction motors as the dominating force in industrial power transmission. This transformation, however, is accompanied by crucial issues and unresolved research challenges in the environment of BLDC motors.
The core concern revolves around the dependability and endurance of BLDC motors. These motors presently encounter obstacles in achieving advanced fault tolerance, reduced electromagnetic interference, lowered acoustic noise, as well as mitigated flux and torque fluctuations. The path of closed-loop vector control emerges as a possible technique to address these challenges.
In recent literature studies spanning the previous five years, a striking scarcity of exploration in the domain of BLDC motor controllers and design becomes clear. Furthermore, key areas such as the comparative study of existing vector control schemes, the increase of fault tolerance control, the attenuation of electromagnetic interference inside BLDC motor controllers, and other pivotal elements remain undiscovered. These research lacunae serve as a motivator for the undertaking of an intensive investigation to face the fundamental issues related with BLDC motors.  BLDC motors have quickly become the motor of choice for electric vehicle (EV) applications due to the fact that they are reliable, simple, and energy efficient.
This detailed survey goes deep into numerous sophisticated control strategies for BLDC motors. These encompass fault tolerance control, electromagnetic interference reduction, field orientation control (FOC), direct torque control (DTC), current shaping, input voltage control, intelligent control, drive-inverter topology, and the underlying operational principles aimed at the minimization of torque irregularities. Additionally, the study goes through the historical narrative of BLDC motors, the categorization of BLDC motor kinds, their structural complexity, mathematical modeling, and the standards that govern BLDC motor uses in varied industries
Design and Analysis of a Microstrip Antenna for Superior 5G Communication Performance
Authors: Hassan Sahar K. , Khudair Zaid M.
Published: June 2024

The continuous advancement in communication systems is propelled by the growing demand for fifth-generation (5G) technology, aiming to meet the growing demands of systems that are small in size, operate at high speeds, and have a wide bandwidth. In order to address these requirements, innovative and highly efficient antenna configurations are of paramount importance. This article introduces a microstrip antenna that has been meticulously designed for optimal performance 5G systems. Optimized for 5G communication systems, the research focuses on the design and simulation of microstrip patch antennas which is shaped like butterfly, resonating at a frequency of 50,5 GHz. A Rogers RT5880 (lossy) substrate with a dielectric constant of 2,2 was employed in the antenna design. The dimensions of the proposed antennas were 6 × 6,5 × 0,787 mm³, which resulted in a geometric configuration resembling a butterfly. A comprehensive performance assessment involves exhaustive simulations using the CST Studio Suite application suite. In order to optimize critical parameters such as the Voltage Standing Wave Ratio (VSWR), reflected power, gain, frequency range (BW), and radiation pattern, the dimensions were meticulously adjusted. Significantly, the antenna operating at 50,5 GHz demonstrated a gain of 6,8 dB, in addition to a broad bandwidth of 5,364 GHz and an outstanding VSWR of 1,0131. The outcomes successfully underscore the outstanding performance exhibited by the butterfly-shaped design, thereby establishing its suitability for implementation in 5G networks
Pengaruh Influencer dan Ulasan Pengguna Terhadap Keputusan Pembelian KOnsumen Pada Brand Skincare Avoskin di Media Sosial
Authors: Nabila Huria Salsabila  , Sri Utami Kristiana
Published: June 2024

This research focuses on the influence of influencers and customer reviews on Avoskin skincare purchases on social media, especially in digital marketing. The goal is to understand their role in consumer behavior, and explore effective marketing strategies to increase sales and loyalty. It aims to provide insight into the importance of influencers and customer reviews in Avoskin's digital marketing success. The research focused on Avoskin Skincare users, by collecting field data through questionnaires to 107 respondents who met the criteria. A quantitative descriptive approach was used to analyze the influence of beauty influencers on purchasing decisions. An online survey was used to explore respondents' opinions about influencers, interest in products, reviews, and purchase factors. Data analysis was conducted descriptively with a table of survey results.This study tested three hypotheses about the influence of influencers and user reviews on purchasing decisions. The first and second hypotheses are supported by previous research, showing the significant influence of influencers and user reviews. The results of the third hypothesis show that both jointly influence purchasing decisions with strong statistical significance. This confirms the important role of influencers and user reviews in shaping consumer purchasing decisions. The results of the study using IBM SPSS 29 confirmed that influencers and customer reviews have a positive and significant impact on purchasing decisions, encouraging consumers to purchase Avoskin skincare products in accordance with the hypothesis. However, this study has limitations in population and references, and only considers three variables. It is recommended that similar studies expand the population and consider additional variables for a more comprehensive analysis.
Tiempo de crisis, tiempo de mujeres. La participación laboral de las mujeres entre 1908 y 1937 en Uruguay
Authors: Maubrigades Silvana
Published: June 2024

El estudio histórico de las crisis económicas en diversos países muestra ciertos patrones recurrentes en lo referido al rol cumplido por las mujeres en estos contextos: uno de ellos es que la salida de las crisis suele implicar un incremento en el trabajo de las mujeres, no sólo remunerado sino también no remunerado, dentro de sus hogares (Gálvez & Rodríguez, 2013). Otro de los patrones que se ha comprobado también en Uruguay es que el empleo de los varones muestra una recuperación más rápida que el de las mujeres y, además, éstas participan en condiciones laborales proporcionalmente más precarizadas e inestables (Camou y Maubrigades, 2019; Maubrigades, 2017; Espino, 2012). Como resultado, las crisis tienden a profundizar las condiciones de desigualdad preexistentes en el mercado laboral, tanto en términos de oportunidades de participación y condiciones salariales, como de regulaciones laborales y políticas de equidad. Por tanto, si bien las mujeres tienen una mayor presencia en el mercado laboral a partir de las crisis, las circunstancias en que se produce dicha participación pueden considerarse especialmente complejas, donde la fragilidad de los puestos de trabajo, las condiciones de precariedad, la incertidumbre y, además, la extensión de las jornadas laborales dentro del hogar hace difícil valorarlas como exitosas para las mujeres.
El objetivo de este artículo es reflexionar en particular sobre el impacto de la crisis del `29 en el mercado de trabajo en Uruguay, desde un enfoque de género. La crisis económica que desencadenó el crack financiero mundial, afectó de manera diferente a los distintos grupos de población. Pero en particular afectó de manera diferencial a varones y mujeres. Si bien es cierto que el primer impacto de la crisis tuvo un resultado favorable en el número de mujeres que se integraron al mundo del trabajo, también es cierto que lo hicieron a costa de representar una estrategia abaratadora de la mano de obra.
En el caso de América Latina y en particular en Uruguay, la crisis mundial fue el desencadenante de un cambio de modelo productivo orientado a la industrialización dirigida por el Estado (Bértola y Ocampo, 2012). Por lo que, éste trabajo analiza cómo fue el proceso de incorporación de varones y mujeres en el sector industrial de Uruguay en las cuatro primeras décadas del siglo XX y cómo impactó en este proceso la crisis desencadenada a partir del crack económico de 1929.
Introduction: Towards the centenary of the 1930 crisis. Lessons from Latin America
Authors: Cuesta Eduardo Martín , Lanata-Briones Cecilia
Published: June 2024

Esta es la presentación del dossier temático denominado “La crisis de 1930 en Latinoamérica”, coordinado por Cecilia T. Lanata-Briones y Martín Cuesta. El interés de este dossier, además de adelantarse al centenario de la Gran Depresión, radica en la selección de cuatro trabajos de reconocidos/as expertos/as en diferentes ramas de la historia económica. Sin lugar a duda, se puede ubicar a estos cuatro trabajos en líneas de renovación historiográfica con respecto a los abordajes anteriores sobre los impactos de la crisis de la década de 1930. La relevancia de los estudios sobre esta crisis en la historiografía económica (y en la economía) del siglo XX fue más que trascendente, con abordajes desde diferentes miradas y enfoques en relación no sólo con marcos teóricos e ideas, sino también por las preguntas que la contemporaneidad realizaba al pasado. Así, algunas perspectivas hacían primar el análisis de los desequilibrios macroeconómicos y/o financieros, así como otras observaban los problemas sistémicos de los flujos comerciales y de capitales (con o sin dependencia), y otros analizaron los cambios en las políticas económicas y de ciclos/paradigmas. La enumeración de los mismos sería demasiado extensa para esta presentación. Sin embargo, basta lo anterior para poder inferir que los cuatro trabajos aquí presentados, en más de un sentido, abordan la crisis de la década de 1930 con una agenda de preguntas y problemas de actualidad: el impacto de la crisis en clave de género en Uruguay, los problemas del sistema de transporte urbano de la ciudad de Buenos Aires, las transformaciones en el transporte ferroviario, y el sistema vial y el turismo en la provincia de Mendoza.
Symbiotic Relationships between Nitrogen-fixing Bacteria and Leguminous Plants Ecological and Evolutionary Perspectives: A Review
Authors: Chellem Sushma Raj , Kishore Chiriki Vasantha Lakshmana , Reddy Gurrala Sai Vamsi , Akshay D. V. S. , Kalpana Kavuri , Lavanya Purimetla , Choragudi Kavya Harshita
Published: June 2024

The symbiotic relationships between nitrogen-fixing bacteria and leguminous plants play a Important role in enhancing soil fertility, boosting crop yields, and promoting sustainable agricultural practices. The molecular and biochemical mechanisms underpinning these interactions, including signal exchange, root nodule formation, and metabolic integration. The co-evolution of legumes and rhizobia, driven by reciprocal selective pressures, has resulted in highly specialized and efficient symbiotic relationships. Genetic adaptations in legumes, such as the evolution of receptor-like kinases and transcription factors, facilitate the establishment and maintenance of these symbioses. The evolutionary divergence among nitrogen-fixing bacteria, influenced by host specificity and environmental factors, has led to a diverse array of rhizobial strains with varying symbiotic capabilities. Horizontal gene transfer has further contributed to the spread of symbiotic traits, enhancing the adaptability and ecological success of rhizobia. In agricultural contexts, the benefits of symbiotic nitrogen fixation are substantial, reducing reliance on synthetic fertilizers and improving soil health. Sustainable practices such as crop rotation, intercropping, and cover cropping with legumes enhance soil nitrogen levels and overall farm productivity. Advances in genetic engineering and biofertilizer technology offer promising avenues to optimize symbiotic efficiency and extend nitrogen-fixing capabilities to non-leguminous crops. Challenges remain, including the need for effective delivery systems for biofertilizers and the variability of symbiotic performance under different environmental conditions. Future research should focus on understanding soil microbial interactions and developing resilient rhizobial strains. By leveraging these natural processes, we can enhance agricultural sustainability, ensuring food security and environmental health for future generations. This comprehensive review underscores the critical importance of nitrogen-fixing symbioses in agriculture and ecosystem management.
A EDUCAÇÃO PÓS PANDEMIA, AS POLÍTICAS PÚBLICAS, AS ADAPTAÇÕES CURRICULARES E A INCLUSÃO
Authors: Cardoso Amalia Noemia
Published: June 2024

O tema desse trabalho, A Educação pós pandemia, as políticas públicas, as adaptações curriculares e a inclusão tem como objetivo da pesquisa analisar e refletir a respeito do processo da educação no Brasil após a pandemia do Covid-19. O que se pretendeu estudar, ancorado numa metodologia analítica, hermenêutica e reflexiva, foi como são construídas as imagens sobre a educação e a pedagogia após pandemia, que possibilidades de estratégias para a inclusão são necessárias com a instauração da tecnologia nas escolas. A pesquisa trouxe a reflexão como estratégia para a inclusão do Desenho Universal para a Aprendizagem – DUA para as classes regulares e para os Atendimentos Educacionais Especiais – AEE. Concluindo, refletiram-se a busca por uma pedagogia com novos paradigmas para a educação apoiando-se na inclusão e na tecnologia, rompendo com as práticas tradicionais. A pesquisa aponta que o percurso permanece inconcluso, pois emergem as necessidades de mudanças em diferentes contextos e implementação de políticas públicas que ousem a serem efetivadas.
Sobrevida y desigualdad social en adultos mayores con enfermedad renal crónica estadio 5 en tratamiento de hemodiálisis
Authors: Valladares Benítez Marcela , Bonilla Q. Gabriela , Osorio Chuquitarco Washington Xavier , Rivadeneira Guerrero María Fernanda , Almeida Rivera Doris Yvonne
Published: June 2024

Introduction: The access of older adults to hemodialysis programs is increasingly common. The aim of this study was to determine the survival of older adults with Chronic Kidney Disease (CKD) stage 5 on Hemodialysis, after 5 years of follow-up, in relation to social inequality, and the clinical, biochemical and functional characteristics of the population. studied.
Methods: The present observational, analytical, retrospective study was carried out at the CLINEF Norte Nephrological Center, in Quito, Ecuador, in the period 2007-2012. Patients >64 years old, with CKD 5-d were included. Clinical, nutritional, economic, sociodemographic, mortality and overall survival (OS) variables were recorded. The sample was non-probabilistic. Survival was measured at 5 years with Kaplan-Meier and the association between the variables was analyzed.
Results: 71 cases are analyzed, with an age of 70.7 ± 6.6 years, 64.8% men, 49.3% with income < 530 dollars. The 5-year OS was 48.9%. The variables that were significantly associated with OS were: male sex (OS 49.0 ± 2.4 months, P=0.010), absence of CVD with OS 45.3 ± 2.4 months, P=0.010), albumin > 3.51 g/dl (OS 49.7 ± 2.9 months, P =0.009), Karnofsky > 80 ( OS 52.7 ± 2.2 months, P =0.002). Female sex and a history of CVD presented a statistically significant HR (HR 2.29, 95% CI 1.18 -4.43; HR 2.67, 95% CI 1.21-5.88). When adjusting for low income, together with female sex and low albumin, they maintained their association (HR 2.21, 95% CI 1.01-4.82), (P=0.044).
Conclusion: Nutritional status and functional assessment were the main factors associated with greater survival of older adults on hemodialysis. In a subanalysis it was shown that women with low economic income have lower survival.
Forensic parameters of 10 Y-STR markers in the Nigerian Hausa, Igbo, and Yoruba populations
Authors: Fakorede Samson Taiwo , Adekoya Khalid Olajide , Iroanya Onyekachi Ogbonnaya , Kasu Mohaimin , D’Amato Maria Eugenia
Published: June 2024

Y chromosome short tandem repeats, or Y-STRs, are interesting genetic markers suitable for identifying male offenders in forensic investigations because of the haploid nature of the human male determining chromosome. Furthermore, due to the non-recombining nature of the Y chromosome, Y-STRs are choice markers in paternity or kinship analysis, human evolutionary investigations, and population studies. The lack of reference Y-haplotype data for the populace currently hampers the use of these markers in forensic applications in Nigeria. In this study, the 10 Y-STR loci in the UniQTyperTM Y-10 system including DYS385ab, DYS447, DYS449, DYS481, DYS504, DYS518, DYS612, DYS626, DYS644 and DYS710 were studied in 461 males comprising 139 Hausa, 96 Igbo and 226 Yoruba ethnic populations. Sixty alleles were recorded for the pooled dataset across the 10 loci, with allele frequencies ranging from 0.0022 to 0.6052. There were 430 haplotypes detected, 403 unique (singletons), and 27 were shared. The discrimination capacity and haplotype diversity were 0.9330 and 0.9770, respectively. Allelic richness was highest in the locus DYS626 and lowest in DYS504. Private alleles were found in each group, with the Hausa population having the highest number. Duplications and microvariant alleles were also reported. These findings may be helpful for paternal lineage investigations, population genetics, and forensic applications among the Nigerian populations.
The Generalized Gompertz-G Family of Distributions: Statistical Properties and Applications
Authors: Kajuru Jibril Yahaya , Garba Hussaini Dikko , Suleiman Aminu Mohammed , Ibrahim Aliyu Fulatan
Published: June 2024

This research aimed at presenting a new statistical model called the Generalized Gompertz-G family of distribution via the method of Alzaatreh, which introduces additional shape parameters for any baseline distribution.  We investigate various mathematical aspects of this model, explicitly deriving properties such as moments, moment-generating function, survival function, hazard function, entropies, quantile function, and order statistics distribution.  We explore a particular member of this family of distributions, the Generalized Gompertz-Exponential Distribution (GGED), by defining its properties and doing a detailed analysis.  A Monte Carlo simulation was utilized to evaluate the model's flexibility and performance, and the distribution family's potential utility in real-world data analysis was further highlighted by investigating the model's parameter estimation using the method of maximum likelihood.  We also assess the adaptability of the Generalized Gompertz-Exponential distribution using a real-life dataset and relating its performance with other established models through information criterion.  The results show that the Generalized Gompertz-Exponential distribution (GGED) outperformed the compared distributions, emphasizing its potential applicability in diverse practical scenarios for data modeling.
The Investigation of Surface Radio Refractivity Over Lokoja, Kogi State Nigeria
Authors: Akinbolati A , Adamu Idris , Adache Tunde Davide
Published: June 2024

This research investigated the variation of Surface Radio Refractivity and its propagation effects on radio signals over Lokoja, Kogi State, Nigeria.  The study used six years (2015-2020) of satellite data on temperature, pressure, relative humidity and rainfall at the surface (12 km) above ground level.  The data retrieved were used to determine the monthly, seasonal, and annual Surface Radio Refractivity value for Lokoja Kogi State.  Results show that high Surface Radio Refractivity values were recorded generally during the wet season months compared to the dry season months in all Six years (2015-2020).  The average values of Surface Radio Refractivity 307.7407 (N-units) and 323.4674 (N-units) were obtained during the dry and wet season, respectively.  The minimum surface radio refractivity values of 280.7245, 284.6583, 308.0021, 285.2304, 304.2521 and 285.9139 (N-units) were recorded for the years 2015, 2016, 2017, 2018, 2019, and 2020 respectively.  On the other hand, the highest values of  330.8153, 331.8133, 330.3580, 330.9278, 332.4704, and 331.1316 (N-units) were recorded for the years 2015, 2016, 2017, 2018, 2019 and 2020, respectively.  Higher values of Surface Radio Refractivity were recorded generally during the wet season compared to the dry season months in all years (2015-2020) in Lokoja, Kogi State.  This implies higher radio signal attenuation due to Ns during the wet season compared to the dry season.  The correlation coefficients between Surface Radio Refractivity Ns and temperature are -0.41, -0.51, -0.49, -0.48, -0.46, -0.50, pressure 0.07, -0.15, -0.28, -0.08, -0.11, -0.26, relative humidity 0.89, 0.84, 0.75, 0.84, 0.77, 0.83, and the amount of rainfall 0.76, 0.64, 0.73, 0.58, 0.51, 0.65 respectively in the year 2015, 2016, 2017, 2018, 2019, 2020.  The overall findings of the work will be useful to radio engineers for properly planning a reliable power budget for terrestrial radio communication over Lokoja, Kogi State.
Development of Exponentiated Cosine Topp-Leone Generalized Family of Distributions and its Applications to Lifetime Data
Authors: Osi Abdulhameed Ado , Doguwa Sani Ibrahim , Abubakar Yahaya , Zakari Yahaya , Abubakar Usman
Published: June 2024

The Topp-Leone distribution is widely used for modeling lifetime data across many disciplines. This paper presents the Exponentiated Cosine Topp-Leone Generalized family (ExCTLG), which is an extension of the Topp-Leone family. The research examines the mathematical properties of the ExCTLG, including the survival and hazard functions, moments, moment-generating functions, and Renyi’s entropy. Parameter estimation is carried out using the maximum likelihood estimation (MLE) techniques, and the estimated parameters consistency is validated using the Monte Carlo simulation method, thereby highlighting the superiority of MLE. The advantages and applicability of the proposed distribution are shown by analyzing two-lifetime datasets.
A DFT+U Study of the Structural and Electronic Properties of Zinc Doped Anatase TiO2 Nanomaterial
Authors: Alhassan Shamsuddeen Sani , Abdulsalam Mahmud
Published: June 2024

This work reports a theoretical study on the structural and electronic properties of the anatase phase of titanium dioxide (TiO2) within the framework of density functional theory corrected for on-site coulomb interactions in strongly correlated materials (DFT+U).  The exchange correlation was described by local density approximation (LDA).  The optimized lattice parameters obtained for the pure anatase TiO2 agree with the experimental data.  Our results revealed that, after the zinc doping, the structure didn't change but there was a little expansion in the volume of the pure material.  It was found that the doped structure's stability increases as the concentration of the dopant increases, but all the doped structures are stable.  However, introducing the zinc dopant has significantly reduced the band gap of the pure anatase by 80.7 %, 80 %, and 78.6 % due to 0.25, 0.5, and 0.75 doping concentrations, respectively.  This implies that the band gap energy increases as the doping concentration increases.
Bio-Concentration Factors of Heavy Metals in the Leaf and Root System of Some Selected Vegetables along the Dilimi River in Jos North, Plateau State, Nigeria
Authors: Karkarna Mustapha Zakariya , Garba Y I , Salisu Aminu Sani
Published: June 2024

This research sought to evaluate the bio-concentration factors of specific heavy metals to facilitate the sustainable management and use of irrigation sites.  Sixteen samples of lettuce and spinach were gathered, and each was divided into leaves and roots, placed into a different polythene bag and tagged with the plant's name, part, and stratum.  The heavy metals that were analyzed included Lead (Pb), zinc (Zn), cadmium (Cd), chromium (Cr), iron (Fe), and Nickel (Ni).  The analysis was done using Atomic Absorption Spectroscopy (AAS).  The findings showed that all the metals Cr, Fe, Pb, Ni, Zn, and Cd were within the WHO recommended permissible limit in soils, despite the vegetables having higher Fe concentrations than the recommended limit of 20.00 ppm.  The results also showed that the roots and leaves of spinach and lettuce vegetables primarily categorized the heavy metals as having moderate Bio-Concentration Factor (BCF) values, which ranged between 0.1 and 1.0.  The results also revealed hyper-accumulation of Ni (1.723) and Cr (1.249) in the leaves of lettuce and spinach.  The results also indicate a weak relationship between plants and the heavy metals in the soil.  The strongest association (r = -0.512) was found between Ni in the soil and Fe in the vegetables.  Farmers along the river should be made aware of the detrimental consequences of their actions.
Prevalence of Geohelminths Contamination of Selected Fruits and Vegetables in Maiduguri Metropolis Borno State
Authors: Usman Ali Bukar , Felix Daniel , Yahaya Haruna Ismail , Abdulkareem Ummu Habibah , Aminu Yusuf Fardami , Umar Umar Alhaji , Muhammad Zainab Sanusi
Published: June 2024

Contamination of raw fruits and vegetables with geohelminth eggs or larvae can occur when the produce comes into contact with contaminated soil, water, or fertilizer during growth or post-harvest handling. This research aimed to isolate geohelminths that transmit intestinal parasitic infections to humans from vegetables and fruits in some selected markets in Maiduguri (including Gamboru kasuwa, Monday market, University commercial, and Tashan Bama) Borno state. The selected fruits were Cucums sativus, Solanum lycoperscum, and Solanum melongena. The selected vegetables also were Brassca oleraca, Daucus carota, Allium cepa, Euruca sativa, and Amaranthus viridis. Four (4) samples were collected for each fruit and vegetable from different vendors per location, giving 128 samples. The samples of vegetables and fruits were collected for two weeks to allow different batches of produce to the market. Solanum lycoperscum and Euruca sativa had the highest levels of 70% and 26% soil-helminths contaminations, respectively. The most prevalent geohelminths in vegetables and fruits were A. lumbricoides, with a percentage occurrence of 54.5% in fruits and 59.7% in vegetables. Produce from markets in Gamboru had the highest levels of 63.6% and 53.2% contaminations in fruits and vegetables, respectively. Soil helminths in vegetables and fruits can be prevented or eliminated by effectively removing human and animal waste, using properly treated organic manure/wastewater and effluents as fertilizers for irrigation, thoroughly washing and cooking fruits and vegetables, and training food vendors on food safety practices.
Evaluation of Alchornea cordifolia Extracts for Larvicidal Activity against Anopheles Mosquitoes: Implications for Malaria Control
Authors: Oyedeji Ayodele A , Angaye Tariwari C N , Abowei Jasper F N
Published: June 2024

Alchornea cordifolia is a botanical specimen renowned for its medicinal benefits.  The phytochemicals present in this plant boast antioxidant, anti-inflammatory, antimicrobial, and analgesic properties, making it a versatile and effective remedy.  This plant has been utilized for several decades in treating various ailments like; malaria, diarrhea, and respiratory infections.  To evaluate its efficacy in eradicating mosquito larvae, extractions from both the plant's bark and leaves were obtained using various methods, including crude methods, hot water, and ethanol.  The plant was macerated in alcohol and hot water, while the bioassay was carried out using a static non-renewal test.  The results of the bioassay indicated that the LC50 values for the various extracts of the plant.  The ethanol extract was the most active against the mosquito larvae, with an LC50 value of 8.37 ppm.  It was followed by the crude stem-bark extract, which had an LC50 value of 13.18 ppm, and the hot water extract, which had an LC50 value of 110.00 ppm.  The plant's diverse range of phytochemicals may have played a role in its potency in eliminating mosquito larvae.  This activity of the plant strongly suggests that Alchornea cordifolia has insecticidal properties as a larvicide against malaria.