The reporting system for fishing vessel and crew casualties in Peru needs a disruptive change in order to know what the risks in terms of marine safety are, who should manage them, and how they should be managed. According to a technical review on accidents recorded by the Peruvian Direction of Captaincies and Coast Guards (DICAPI), it is evident there is a need to process the available information on casualties of fishing vessels and crew in the fishing industry since this information is not easy to analyze. Nevertheless, this paper provides the casualties reported between Citation: Mantari, J.; Ramirez, J.; Figueroa, E.; Huerta, J.; Cipriano, W.; Amaya, D.; Cuba, L.; Guedes Soares, C. Investigating Fishing Vessel Casualties in Peru: A Technical and Scientific Review to Support New Regulations. J. Mar. Sci. Eng. 2023, 11, 2224. https://doi.org/10.3390/ jmse11122224 Academic Editor: Md J...

Abstract

17 páginas

HIGH-FLOW NON-INVASIVE VENTILATION (NIV) DEVICES REDUCE THE MORBIDITY AND MORTALITY OF COVID-19. THE OBJECTIVE WAS TO EVALUATE THE USE OF THE NON-INVASIVE VENTILATION DEVICE WITH HIGH-FLOW HELMET CPAP DESIGNED IN PERU IN PATIENTS WITH SEVERE ACUTE RESPIRATORY SYNDROME (COVID-19) HOSPITALIZED IN THE EMERGENCY SERVICES OF FIVE HOSPITALS. PROSPECTIVE MULTICENTER AND CROSS-SECTIONAL OBSERVATIONAL STUDY FROM FIVE HOSPITALS FROM JULY TO AUGUST 2020. 19 PATIENTS WERE RECRUITED AND DIVIDED INTO TWO GROUPS (G-1 N = 10; G-2 N = 9) APPLYING CLINICAL AND GASOMETRIC PARAMETERS AS INDICATORS OF DISEASE EVOLUTION UPON HOSPITAL ADMISSION AND WITHIN 24 HOURS. A PROGRESSIVE INCREASE IN THESE PARAMETERS WAS OBSERVED IN THOSE PATIENTS WHO USED THE NIV CPAP HELMET WITHIN THE FIRST 24 HOURS. IN G-01, IMPROVEMENT WAS EVIDENT IN 90% (N = 9/10): PAO2 (RANGE 48–137; AVERAGE: 82.49 ± 8.07; P-VALUE = 0.008), CO2...

La gestión tributaria es un elemento fundamental para la política económica del país, ya que financia el presupuesto público. Si se pierde el control de dicho presupuesto esto causaría una inestabilidad y desequilibrio. El objetivo de la presente investigación es la correlación que existe entre la gestión tributaria y el impuesto predial en la municipalidad provincial de Ica, año 2018. La metodología pertenece a un estudio de investigación descriptiva correlacional, la muestra estuvo conformada por 277 trabajadores de la municipalidad provincial de Ica. Se logró determinar el grado de relación que existe entre la gestión tributaria y la recaudación del impuesto predial en la municipalidad provincial de Ica – 2018, esto se debe a la opinión de los trabajadores de la municipalidad. Finalmente recomendamos que el Servicio de Administración Tributaria de Ica (SAT ICA) com...

El presente experimento denominado “Respuesta a la aplicación foliar de tres dosis de bioestimulante y de transportadores de glúcidos en el cultivo de maíz morado (Z. mays L.) variedad Canteño, en la zona baja del valle de Ica”, conducido en la parcela de propiedad del señor Estanislao Espinoza Bonilla, ubicado en el sector La Venta Baja del distrito de Santiago de la provincia y región de Ica, en un suelo de textura franca, un pH moderadamente alcalino y una conductividad eléctrica ligeramente salino, persiguiendo el siguiente objetivo: Determinar la mejor dosis de bioestimulante y de transportadores de glúcidos aplicadas a área foliar sobre la producción de maíz morado variedad Canteño, y realizar un análisis económico de los tratamientos en estudio que permita determinar su rentabilidad. El experimento se dispuso en un Diseño en Bloque Completamente Randomizado disp...

This paper presents an analytical solution for the static analysis of thick laminated rectangular beams with clamped boundary conditions at either or both of the beam's edges. A unified formulation known as Carrera's Unified Formulation (CUF) is used in order to consider shear deformation theories of arbitrary order. The governing equations are obtained by using the principle of virtual work. The main novelty is the use of the boundary-discontinuous Fourier approach for laminated beams in the framework of a unified formulation. Unlike Navier-type solutions, the present development can obtain analytical solutions for beams with clamped boundary conditions. A 3D finite element solution is used to validate the obtained results. The present theory can analyze clamped beams accurately so benchmark results are provided.

This paper presents an analytical solution for static analysis of thick rectangular beams with different boundary conditions. Carrera's Unified Formulation (CUF) is used in order to consider shear deformation theories of arbitrary order. The novelty of the present work is that a boundary discontinuous Fourier approach is used to consider clamped boundary conditions in the analytical solution, unlike Navier-type solutions which are restricted to simply supported beams. Governing equations are obtained by employing the principle of virtual work. The numerical accuracy of results is ascertained by studying the convergence of the solution and comparing the results to those of a 3D finite element solution. Beams subjected to bending due to a uniform pressure load and subjected to torsion due to opposite linear forces are considered. Overall, accurate results close to those of 3D finite elemen...

This study aims to contribute to the estimation of power consumption in a disintegration process in disc crushers (fixed and mobile). The study covers the dynamic analysis of forces acting on the particles and the mobile disc. A detailed analysis of the resultant force on the particles was performed. Finally, the consumed power is calculated with the forces acting on the mobile disc. The calculated power is a key aspect in the design of disc crusher machines.

This paper presents the study of the mechanical properties of technical fibers extracted from the Stipa Obtusa grass considering three different alkali treatment times, 1.5, 3 and 5 h; additionally, fiber/matrix compatibility is evaluated via the single fiber fragmentation test, and the best treatment in terms of mechanical properties and compatibility is used to test the effect of gage length, strain rate and cyclic deformation. Result shows that mechanical properties increase with treatment time until a maximum (strength similar to 569 MPa, modulus similar to 28 GPa and strain 0.026), and afterwards decreases; furthermore, strength and strain decreases as the fiber length increases; while, the strain rate's effect is negligible unless at very low speed, and a cyclic deformation leads to an increase of the modulus (similar to 13%). It can be concluded that fibers extracted from the Stip...

El objetivo planteado para el presente trabajo es determinar la relación entre la gestión empresarial y el impuesto a la renta de las pequeñas empresas del sector turismo en la Región Ica en el año 2022. El tipo de investigación a trabajarse es de tipo retrospectivo, se tomará información de lo ya sucedido. El nivel de investigación es de carácter explicativo. Se trabajó con una muestra de 368 personas encuestadas entre dueños y responsables la pequeña empresa turística. Como resultados relevantes se obtuvo el 33.52%, entre los que además de sostener que la gestión empresarial se ha estabilizado en los últimos años, también sostenían que había una recuperación de la capacidad de obtener renta que permitiera el pago del impuesto a la renta. Sin embargo, los que afirman lo contrario para ambos aspectos, la incidencia es de 28,94% una diferencia no muy significativa. F...

The classic forms of disc crusher disintegration simulations are faced using methods that associate their analysis to the stochastic nature of the process. This paper introduces a method that can solve the disc crusher disintegration simulation with a partially deterministic manner. The paper presents the result of the thrust force and the consumed power of disc crushers which is estimated by a static analysis of forces that interact within the discs (fixed and mobile). This methodology uses the calculation of forces and directions involved in the process of particle fragmentation. The fragmented material is characterized. The fragmentation process is simulated with the help of the computer programme to finally estimate the consumed power. For comparison purposes, two types of disc crushers are designed to determine the capability of the method after assessing the results.

Previous studies showed that biochar amended soils significantly enhanced the growth and yield of quinoa under water limitations. So it becomes an emerging agronomic strategy to consider for sustainable quinoa production. Biochar can specifically be considered for the area particularly receiving low annual rainfall and more vulnerable to current climate change conditions

Purple maize has gained global significance due to its numerous nutraceutical benefits. However, sustaining its production typically requires high doses of nitrogen fertilizers, which, when applied in excess, can contaminate vital resources such as soil and water. Inoculation with nitrogenfixing microorganisms, such as those from the Azospirillum genus, has emerged as an alternative to partially or fully replace nitrogen fertilizers. This study aimed to evaluate the inoculation effect with A. brasilense and varying nitrogen fertilization levels on the yield and quality of purple maize. The experiment was carried out using a randomized complete block design (RCBD) with a 2 × 5 factorial arrangement and five replications. Treatments comprised two inoculation levels (control without inoculation and inoculation with A. brasilense) under five nitrogen doses (0, 30, 60, 90, and 120 kg・ha−...

Purple maize has gained global significance due to its numerous nutraceutical benefits. However, sustaining its production typically requires high doses of nitrogen fertilizers, which, when applied in excess, can contaminate vital resources such as soil and water. Inoculation with nitrogenfixing microorganisms, such as those from the Azospirillum genus, has emerged as an alternative to partially or fully replace nitrogen fertilizers. This study aimed to evaluate the inoculation effect with A. brasilense and varying nitrogen fertilization levels on the yield and quality of purple maize. The experiment was carried out using a randomized complete block design (RCBD) with a 2 × 5 factorial arrangement and five replications. Treatments comprised two inoculation levels (control without inoculation and inoculation with A. brasilense) under five nitrogen doses (0, 30, 60, 90, and 120 kg・ha−...

La productividad del cultivo de papa (Solanum tuberosum L.) requiere estrategias nutricionales que optimicen el rendimiento sin afectar la calidad comercial de la semilla. En este contexto, la aplicación de microorganismos específicos que mejoren la disponibilidad de nutrientes y el desempeño fisiológico del cultivo representa una estrategia sostenible. Este estudio evaluó el efecto de la fertilización órgano-mineral y la inoculación con Trichoderma viride y Bacillus subtilis sobre el rendimiento y la calidad comercial del tubérculo en dos variedades de papa (INIA 303-Canchán y Yungay) bajo condiciones agroecológicas de los Andes peruanos. Se empleó un diseño completamente al azar (DCA) con arreglo factorial 3x3x2 y tres repeticiones por tratamiento, sumando un total de 54 UE. Se evaluaron 3 niveles de fertilización (0 %, 50 % y 100 % NPK) y 3 niveles de microorganismos (si...

Purple corn (Zea mays L.), a traditional Andean crop valued for its high anthocyanin content and increasing relevance in the nutraceutical industry. However, its production is challenged by envirmental stress and the overuse of chemical fertilizers in Andean ecosystems. This study evaluated the effects of co-inoculation with Azospirillum brasilense (a plant growth-promoting rhizobacterium, PGPR) and Glomus iranicum var. tenuihypharum (an arbuscular mycorrhizal fungus, AMF) on growth and yield performance in five purple corn genotypes under highland field conditions in Ayacucho,Peru. A randomized complete block design with three replications was implemented across two locations to compare a control (no inoculation) with individual and combined microbial treatments. Results showed that combined inoculation significantly improved vegetive parameters, ear and yield-related traits in both loc...

El maíz morado (Zea mays L.), originario de los Andes peruanos, destaca por su alto contenido de antocianinas, lo que le otorga un valor nutracéutico creciente en mercados globales. Sin embargo, su cultivo en zonas altoandinas suele depender del uso intensivo de fertilizantes sintéticos, comprometiendo la sostenibilidad del suelo. Este estudio evaluó como la bioinoculación individual y combinada con Azospirillum brasilense y Glomus iranicum var. tenuihypharum influyen en caracteres morfofisiológicos radicales en cinco variedades contrastantes de maíz morado, cultivadas en la región de Ayacucho (2735 m s.n.m.). Se aplicó un diseño de bloques completos al azar con cuatro tratamientos de bioinoculación. Se midieron peso seco, longitud, volumen, diámetro y número de ramificaciones radiculares. La coinoculación microbiana generó diferencias altamente significativas (p < 0.0001)...