This bibliometric review analyzes global research on COVID-19 vaccine side effects, focusing on publication trends, collaborations, and key topic areas. Using VOSviewer and Bibliometrix for data analysis and visualization, this study examines 1353 unique papers indexed in Scopus and Web of Science (2020–2024). The results indicate a significant increase in publications in 2021 and 2022, with the United States, China, and Europe contributing the most. While many studies focused on common side effects, such as headache, fatigue, and injection-site pain, rare but serious adverse events, such as myocarditis, thrombocytopenia, Guillain–Barré syndrome, pericarditis, and thrombosis, were also reported. However, regions with limited research infrastructure, particularly in developing countries, remain underrepresented despite the critical need for vaccine safety studies in these areas. Addi...

RESUMEN En esta investigación se utilizó a la levadura Saccharomyces cerevisiae como combustible en celdas de combustible microbiana utilizando electrodos de Zn-Zn y Zn-Cu, con la finalidad de evaluar en cuál de estos dos sistemas se producía mayor bioelectricidad. La levadura fue identificada al 86% como Saccharomyces cerevisiae mediante el sistema API 20 C AUX. En cuanto a la producción de bioelectricidad, se observó que en la celda de combustible microbiana con electrodos de Zn-Cu se logró generar mayor voltaje que en las celdas con electrodos de ZnZn, siendo el pico máximo de generación de voltaje de 0.761 y 0.0089 V respectivamente. Ambas celdas mostraron pH ligeramente acido y neutro durante el monitoreo. Los valores máximos de densidad de potencia y densidad de corriente mostrado por la celda de Zn-Cu fue de 8.196 mW/cm2 en 8.383 mA/cm2 respectivamente, por otro lado, la...

El presente estudio tuvo como objetivo, determinar las evidencias psicométricas del inventario de ansiedad estado-rasgo (IDARE), la población estuvo conformada por 314 escolares de la ciudad de Huaraz; se realizó el análisis de validez a través de método ítem factor, de otro lado se analizó la estructura por medio del análisis factorial confirmatorio y se analizó la confiabilidad con el método de Omega. Los resultados alcanzados fueron que, para la validez ítemsfactor se hallaron valores entre .34 a .68 y cuya discriminación va de bueno a muy bueno, a excepción de los reactivos 8, 9, 24, 31 y 34 que presentan valores inferiores a .30, de otro lado el análisis factorial confirmatorio evidencia 2 factores; se debe señalar que se realizó un análisis a un modelo 2 con 35 ítems que arrojó de igual modo dos factores. Respecto a la confiabilidad el instrumento alcanzó .91 p...

El objetivo fue determinar la influencia de la familia y los factores socioemocionales en el rendimiento académico de los alumnos de educación básica regular en Piura, dentro del marco del enfoque por competencias. Se argumenta que la familia es el primer agente socializador y educativo, donde la calidad de las interacciones familiares, como la comunicación y el apoyo emocional, afectan significativamente el desarrollo de competencias educativas; ya que un ambiente familiar positivo se correlaciona con un mejor rendimiento académico. En el contexto peruano, el involucramiento parental no solo mejora las calificaciones, sino también la motivación y la autoestima de los estudiantes. El estudio, de carácter mixto, incluye encuestas y entrevistas semiestructuradas a 200 estudiantes, 100 padres y 50 docentes, seleccionados mediante muestreo aleatorio estratificado. Se emplearon instru...

El propósito fue explicar el efecto de la ejecución de un programa de tutoría en la planificación curricular de docentes de secundaria; ya que se identificó la importancia de innovar en el uso de estrategias en tutoría y diseño curricular, con el fin de conseguir una real adaptación del plan de tutoría estándar propuesto por el Minedu. Se desplegó un enfoque cuantitativo, aplicado, de nivel explicativo, de diseño experimental (subdiseño cuasi experimental), de pretest y postest. Se tomó muestra de cien docentes elegidos a través de una selección no probabilística intencional, y se dividieron en dos grupos: 50 docentes en grupo control y 50 en el grupo experimental. Para recabar la información se utilizó la encuesta y el cuestionario como instrumento, que fue aplicado en dos etapas. Los resultados evidenciaron que la programación curricular docente se ve influenciada p...

Introducción. En la tuberculosis multirresistente, el abandono del tratamiento constituye un grave problema de salud pública que afecta la calidad de vida de los pacientes, sus familias y la comunidad. El enfrentarlo supone una carga para los sistemas sanitarios debido a que provoca fuentes de transmisión libre en la comunidad e incrementa la prevalencia y la mortalidad. De ahí, la necesidad de investigar los factores asociados con esta situación. Objetivo. Determinar los factores de riesgo asociados con el abandono del tratamiento en pacientes con tuberculosis multirresistente en la región de Callao (Perú). Materiales y métodos. Se hizo un estudio analítico de casos y controles (80 casos y 180 controles) en tratamiento entre el 1° enero del 2010 y el 31 diciembre del 2012. Los factores se determinaron mediante regresión logística, y se calcularon los odds ratios (OR) y los i...

Introduction: In the approach of multidrug-resistant tuberculosis, the therapeutic abandonment constitutes a serious problem of public health, affecting the quality of life of patients, families and community. Addressing it poses a burden on health systems, because it causes free sources of transmission in the community, and increases in prevalence and mortality. Hence the need to investigate those factors associated with this situation. Objective: To identify risk factors associated with treatment default in patients with multidrug-resistant tuberculosis in the Callao-Peru region. Materials and methods: Analytical case-control study (cases = 80 and controls = 180) that started treatment from January 01, 2010 to December 31, 2012. The factors were identified by logistic regression, calculating the odds ratios (OR) and 95% confidence intervals. Results: Finding risk factors in the multiva...

Microbial fuel cells are a bioelectrochemical technology that uses different types of waste as fuel sources to generate sustainable and environmentally friendly electricity. Various MFCs have been developed, with the electrode used being a crucial problem due to its high manufacturing cost. This research shows that electrodes can be manufactured quickly and economically using activated carbon (100 g), sugar (80 g), ethanol (250 ml), and pine resin (200 g). For its demonstration, grape waste was used in a single-chamber MFC for 35 days. The manufactured electrode generated a Rint. of 18.471 ± 2.475 Ω, whose current density was 8.348 ±0.768 mW/cm2 at a current density of 5.166 A/cm2. The electrical potential shown was 0.889 ± 0.017 V and 4.571 ± 0.061 mA, with an ORPmax of 81.495 ± 1.874 mV, operating at a pH of 7.26 ±0.19. The micrographs made by scanning electron microscopy showed...

RESUMEN Las celdas de combustible microbiana (CCM) es una tecnología que genera energía eléctrica utilizando la materia orgánica como combustible, convirtiéndose en una nueva forma de generación de electricidad amigable con el medio ambiente. En este trabajo de investigación se utilizó celdas de combustible microbianas (CCMs) con electrodos de plomo y cobre, y como combustible los desechos de aguaymanto, camu-camu, cocona, granadilla, tomate y tuna. Las CCMs se monitorearon durante 22 días los parámetros de voltaje, corriente y pH; así como también se muestra los valores de densidad de corriente(DC) y potencia (DP). La CCM con sustrato de cocona genero mayor voltaje durante todo el periodo de monitoreo, desde 0.52 a 0.36 V. Mientras que el camu-camu genero mayor corriente de 6.1 a 5.6 mA, desde el primer al último día. Todas las celdas muestran pH ligeramente ácidos, del m...

In Peru, from May 2021 to March 2022, hospital care was restricted due to the second and third wave of the COVID-19 pandemic. During this period a large number of cases of acute respiratory infections increased. With increasing resistance to antibacterials, the search for and identification of carbapenemase co-producing Enterobacteriaceae is of paramount therapeutic importance because it limits the use of available antibiotics. Objective: To determine the Enterobacterales species that present carbapenemase: KPC, NMD and OXA 48 in patients treated in a COVID hospital in Trujillo-Peru, during the COVID-19 pandemic. Methodology: In this descriptive, observational study, biological samples were collected from patients treated in general medicine, emergency, and intensive care units - ICU of Hospital IV "Víctor Lazarte Echegaray" for bacterial identification and sensitivity to carbapenems. r...

This study presents the effect of the incorporation of biosynthesized silver nano particles on the properties of biodegradable films made from potato starch and its potential to be used as active material. Silver nanoparticles were manufactured by green route from grape residues and were added in the film gelatinization process at concentrations of 3% and 6% v/v and compared with control films (0%). The silver nanoparticles were characterized by UV-Vis spectroscopy and Dynamic Light Scattering. Films morphology was analysed by SEM. Thermic stability was studied by TGA curves, also, mechanical properties and antibacterial activity were studied. The integration of silver nanoparticles in biodegradable films made from potato starch was confirmed. The increase in the percentage of silver nanoparticles produces an improvement in its mechanical properties, also, TGA analysis shows an improveme...

The excessive use of fossil sources for the generation of electrical energy and the increase in different organic wastes have caused great damage to the environment; these problems have promoted new ways of generating electricity in an eco-friendly manner using organic waste. In this sense, this research uses single-chamber microbial fuel cells with zinc and copper as electrodes and pineapple waste as fuel (substrate). Current and voltage peaks of 4.95667 ± 0.54775 mA and 0.99 ± 0.03 V were generated on days 16 and 20, respectively, with the substrate operating at an acid pH of 5.21 ± 0.18 and an electrical conductivity of 145.16 ± 9.86 mS/cm at two degrees Brix. Thus, it was also found that the internal resistance of the cells was 865.845 ± 4.726 Ω, and a maximum power density of 513.99 ± 6.54 mW/m2 was generated at a current density of 6.123 A/m2, and the final FTIR spectrum sho...

The excessive use of fossil sources for the generation of electrical energy and the increase in different organic wastes have caused great damage to the environment; these problems have promoted new ways of generating electricity in an eco-friendly manner using organic waste. In this sense, this research uses single-chamber microbial fuel cells with zinc and copper as electrodes and pineapple waste as fuel (substrate). Current and voltage peaks of 4.95667 ± 0.54775 mA and 0.99 ± 0.03 V were generated on days 16 and 20, respectively, with the substrate operating at an acid pH of 5.21 ± 0.18 and an electrical conductivity of 145.16 ± 9.86 mS/cm at two degrees Brix. Thus, it was also found that the internal resistance of the cells was 865.845 ± 4.726 Ω, and a maximum power density of 513.99 ± 6.54 mW/m2 was generated at a current density of 6.123 A/m2, and the final FTIR spectrum sho...

The excessive use of fossil sources for the generation of electrical energy and the increase in different organic wastes have caused great damage to the environment; these problems have promoted new ways of generating electricity in an eco-friendly manner using organic waste. In this sense, this research uses single-chamber microbial fuel cells with zinc and copper as electrodes and pineapple waste as fuel (substrate). Current and voltage peaks of 4.95667 ± 0.54775 mA and 0.99 ± 0.03 V were generated on days 16 and 20, respectively, with the substrate operating at an acid pH of 5.21 ± 0.18 and an electrical conductivity of 145.16 ± 9.86 mS/cm at two degrees Brix. Thus, it was also found that the internal resistance of the cells was 865.845 ± 4.726 Ω, and a maximum power density of 513.99 ± 6.54 mW/m2 was generated at a current density of 6.123 A/m2 , and the final FTIR spectrum s...

En la búsqueda de nuevos combustibles capaces de generar energía eléctrica de forma sostenible y amigable con el medio ambiente, esta investigación utilizó la levadura Galactomyces sp en celdas de combustible microbiana a escala de laboratorio y bajo costo, para dar una nueva solución innovadora. Las celdas de combustible microbiana se fabricaron de polietileno con electrodos de zinc y cobre como ánodo y cátodo, respectivamente. Logrando generar valores picos de corriente y voltaje en circuito abierto de 4.23033 ± 0.3102 mA y 0.7522 ± 0.03573 V, con un pH óptimo de 7.84772 ± 0.21744 y conductividad eléctrica pico del sustrato de 58.89078 ± 2.51661 mS/cm. De la misma forma , la densidad de potencia mostrada fue 4.749 ± 0.294 W/cm2 con densidad de corriente de 351.086 mA/cm2. Por último, las celdas de combustible microbiana se conectaron en serie, generando 2 .6 0 V y logra...

The excessive use of fossil sources for the generation of electrical energy and the increase in different organic wastes have caused great damage to the environment; these problems have promoted new ways of generating electricity in an eco-friendly manner using organic waste. In this sense, this research uses single-chamber microbial fuel cells with zinc and copper as electrodes and pineapple waste as fuel (substrate). Current and voltage peaks of 4.95667 ± 0.54775 mA and 0.99 ± 0.03 V were generated on days 16 and 20, respectively, with the substrate operating at an acid pH of 5.21 ± 0.18 and an electrical conductivity of 145.16 ± 9.86 mS/cm at two degrees Brix. Thus, it was also found that the internal resistance of the cells was 865.845 ± 4.726 Ω, and a maximum power density of 513.99 ± 6.54 mW/m2 was generated at a current density of 6.123 A/m2 , and the final FTIR spectrum s...

En este trabajo se determinaron los parámetros para la limpieza por ablación láser de contaminantes depositados mediante atracción electrostática sobre sustratos de láminas de acetato de celulosa (OHP) y su análisis mediante la medición de la transmitancia de la superficie irradiada en función de la energía por pulso de un láser Nd:YAG. La energía fue controlada mediante el tiempo de retraso del Q-switch usando longitudes de onda en la región infrarroja de 1064 nm y luz visible verde de 532 nm. Se utilizó un máximo de 10 pulsos láser con una frecuencia de 1 Hz sobre lo s sustratos con contaminantes con 9 μm y 11 μm de espesor. Se encontró que para la limpieza láser sin daños de sustratos de la s láminas OHP, es conveniente usar una longitud de onda de 1064 nm, con una fluencia de 0.4 J/cm2 y usando un máximo de 6 pulsos. Se verificaron las ventajas de la radiación...

Introduction: Essential oils are complex substances used widely extended in the form of aromatherapy or phytotherapy, some of them as agents to relieve anxiety and stress. In this sense this study was conducted to examine the anxiolytic-like effect of Luma chequen essential oil. Methods: The essential oil was extracted by steam distillation and the chemical composition was investigated by Gas chromatography with flame-ionization detection (GC-FID) and Gas chromatography-mass spectrometry (GC–MS). Moreover, a randomized, double blind, placebo-controlled trial was conducted, where 48 participants were divided into two groups, comprising a control group (CG) treated with placebo, and an experimental group (EG) treated with aromatherapy based on Luma chequen essential oil. The anxiety index was evaluated by State-Trait Anxiety Inventory (STAI). Measures were taken at two times: pretest and...

The enormous environmental problems that arise from organic waste have increased due to the significant population increase worldwide. Microbial fuel cells provide a novel solution for the use of waste as fuel for electricity generation. In this investigation, onion waste was used, and managedtogeneratemaximumpeaksof4.459±0.0608mAand0.991±0.02Vofcurrentandvoltage, respectively. The conductivity values increased rapidly to 179,987±2859 mS/cm, while the optimal pH in which the most significant current was generated was 6968 ± 0.286, and the ◦ Brix values decreased rapidly due to the degradation of organic matter. The microbial fuel cells showed a low internal resistance (154,389±5228 Ω), with a power density of 595.69±15.05 mW/cm2 at a current density of 6.02 A/cm2; these values are higher than those reported by other authors in the literature. The diffractogram spectra of the ...

In the present work, we investigate the concentration of radon and its alpha-emitting progeny at the archaeological site of Huaca 20 in Lima, Peru. The site holds significant cultural and historical importance as an ancient pre-Inca ruin, providing valuable insights into the lives and rituals of its former inhabitants. We quantified the radon levels accurately with passive CR-39TM detectors deployed within specially designed chambers at the site for 28 days. In a controlled laboratory environment, we processed the detectors afterward, examining and analyzing the resulting tracks using advanced microscopy and the ImageJ analysis software. The ground-level concentration of radon and its alpha-emitting progeny was determined, revealing elevated levels ranging from (2.4 ± 0.6) to (8.9 ± 0.9) (kBq/m^3). These findings underscore the unique presence of radon at Huaca 20 and highlight the pot...