Spanish Customer Satisfaction Indices by Cumulative Panel Data

In this paper, we present a new theoretical representation of the Consumer Satisfaction Index (CSI) based on Structural Equation Modelling (SEM). We use panel data collected by an automotive magazine to apply our approach and assess the applicability in the field of marketing by formulating a competitive strategy in the Spanish automobile industry. The basic structure of the CSI is based upon well established theories and approaches to customer satisfaction (see Fornell 1992; Fornell et al., 1996). The structure based upon these theories consists of a number of latent factors, each of which is operationalised by multiple measures. The purpose of this paper is to propose a new way of representing the structure of Spanish Consumer Satisfaction (CS) in the automobile industry to study and compare the implications of its representations. We will discuss that CSI is a global evaluation constructed on the basis of its particular component evaluations. Apart from building a new way of representing the structure of CS, this work tries to correct for the bias produced by the particular method of calculus employed by the magazine.Structural Equation Modeling (SEM), factor analysis, cumulative panel data

Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil

Jatropha curcas has the ability to phytoextract high amounts of heavy metals during its first months just after seeding. Notwithstanding, there is scarce information about metal uptake by adult J. curcas plants. To shed light on this issue, 4-year-old J. curcas L. plants were planted in a soil mixture of peat moss and mining soil (high metals content), and the biomass growth and metal absorption during 90 days were compared with those of plants growing in peat moss. The main metal found in the mining soil was Fe (31985 mg kg-1) along with high amounts of As (23717 mg kg-1). After the 90-day phytoremediation, the plant removed 29% of Fe and 44% of As from the soil mixture. Results revealed that J. curcas L. translocated high amounts of metals to its aerial parts, so that translocation factors were much higher than 1. Because of the high translocation and bioaccumulation factors obtained, J. curcas L. can be regarded as a hyperaccumulator plant. Despite the great capacity of J. curcas L. to phytoremediate heavy-metal-contaminated soils, the main drawback is the subsequent handling of the metal-contaminated biomass, although some potential applications have been recently highlighted for this biomass.University of Seville (VIPPIT-2019-I.5

Índices de Satisfacción del Consumidor: una aplicación de Modelos de Ecuaciones Estructurales a la Industria Automovilística Española

El objetivo del presente trabajo es la obtención de la variable latente Satisfacción Global del Consumidor (SGC), a partir de 25 indicadores proporcionados por la revista Autopista para 130 modelos de coches. La metodología empleada es la modelización mediante Sistemas de Ecuaciones Estructurales basándonos en consideraciones teóricas y en las variables latentes observadas en un Análisis Factorial Exploratorio previo. Cómo resultado se obtienen tres factores de satisfacción del consumidor en los que subyacen los siguientes factores parciales: Apariencia, Comportamiento, Economía, Prestaciones técnicas, Potencia y Habitabilidad. Los dos primeros factores se establecen como modelos de Análisis Factorial Confirmatorio de segundo orden. Las conclusiones de este trabajo permiten una mejor comprensión de las dimensiones de la satisfacción del consumidor y una mejora en la estimación de los índices.análisis factorial confirmatorio, satisfacción global del consumidor

Educational proposal to develop explanation competence in secondary education of Physics

Miguel Ángel Caro Rivas – Universidad Metropolitana de Educación, Ciencia y Tecnología - 0000-0002-9892-7167Nidia Danigza Lugo López – Universidad Nacional Abierta y a Distancia - 0000-0002-9096-5767María del Carmen Pérez Almagro – Fundación Emilio Pérez Piñero - 0000-0003-0774-9981Recepción: 21.02.2024 | Aceptado: 13.03.2024Correspondencia a través de ORCID: Nidia Danigza Lugo López - 0000-0002-9096-5767Área o categoría del conocimiento: Enseñanza de la física desde el experimentoRevisión por pares abierta: Jhoan Sebastián Báez Acevedo - 0000-0002-2227-7532 | Jose Laureano Cruz Cardozo - 0000-0003-0020-9675El trabajo analiza la contribución de los experimentos demostrativos, como estrategia en el desarrollo de la competencia explicación de fenómenos en el aprendizaje del concepto de campo eléctrico. Se trata de una investigación de corte cualitativo con método de estudio de caso en el Colegio José María Vargas Vila IED (Colombia). La recolección de los datos se realizó con tres técnicas: observación participante, entrevista abierta y grupo focal. Dichos registros se han clasificado en dos categorías centrales y cuatro subcategorías. Tras el análisis de ellos, se evidenció que los estudiantes muestran indicios en el desarrollo de la competencia explicación de fenómenos, estableciendo relaciones de causa y efecto al cambiar variables de los experimentos, y, logran participar activamente en las discusiones fundamentadas desde lo observado y desde sus conocimientos científicos.Abstract: This study examines the impact of demonstrative experiments as a strategic approach to fostering competence in explaining natural phenomena during the learning process of the electric field concept. Qualitative research was conducted using a case study methodology at José María Vargas Vila IED School in Colombia. Data collection employed three techniques: participant observation, open interviews, and focus groups. The gathered data were categorized into two central themes and four subcategories. Upon analysis, it is evident that students exhibit progress in developing competence related to explaining phenomena. They successfully establish cause-and-effect relationships by manipulating variables in experiments and actively engage in discussions based on their observations and scientific knowledge. This research highlights the effectiveness of demonstrative experiments in enhancing students' understanding of the electric field concept.Universidad Metropolitana de Educación, Ciencia y Tecnología / Universidad Nacional Abierta y a Distancia / Fundación Emilio Pérez Piñer

Efecto de la inoculación de hongos micorriza arbuscular y aplicación de fertilizantes sobre la calidad nutricional de pasto kikuyo

Se evalúo en campo los posibles beneficios de la inoculación con hongos formadores de micorriza arbuscultar combinado con diferentes niveles de fertilización, sobre la población de HMA nativos y la nutrición foliar del pasto kikuyo (Pennisetum clandestinum). Se utilizó inoculo de HMA comercial y dos niveles de fertilización. Como variables experimentales se estimó la asociación de los HMA y la concentración de minerales  en el área foliar. Los resultados muestran  que la micorrizaciòn natural tiene un mejor comportamiento en aquellos tratamientos sin fertilización y sin la aplicación de micorriza. Similar comportamiento para los  macronutrientes N y P. En el caso del K fue mejor con la mitad de la fertilización y sin la aplicación de inoculo de HMA. Los micronutrientes mostraron respuesta para la fertilización completa y respecto a la micorrización hubo efecto para Fe y Cu favorecida por la no micorrización comercial.  ABSTRACT In the field were evaluated the profit of the HMA combined with different levels of fertilization on the association and foliar nutrition of the kikuyo grass (Pennisetum clandestinum). It was used commercial mycorrhizae fungi and two fertilization levels. The association of the HMA and foliar minerals concentration were determined. The results show that HMA association has a better behavior without both fertilization and micorrhization. Similar tendence  to the N and P macronutrients were presented. In the case of the K was better with the half of the fertilization and without micorrhization. The micronutrients showed response to complete fertilization and only Fe and Cu without micorrization showed respons

Miss attending risk factors in gynecological prenatal care among pregnant women at risk for dual pathology.

Access to adequate healthcare is the best means we have for detecting and preventing complications during pregnancy and childbirth. Identifying and preventing factors that can interfere with this access become essential (Gulliford et al., 2002). Mother dual pathology during pregnancy is a condition with severe consequences (Cosp & Ontano, 2009). However there is scarce literature regarding barriers to obstetric care among women at risk for dual pathology. Objectives The main objective was to explore healthcare access barriers among pregnant women at risk for dual pathology. Methods Framed in a broader research (The WOMAP project) 2014 adult pregnant women less than 26 weeks of pregnancy were screened in five hospitals in Madrid (Spain) between 2016-2019. If the screening test (AC-Ok scale) identified the presence of dual pathology during the last month, women were included in the clinical trial and assessed with a more extensive battery (compound by PHQ-9; GAD-7; PCL-5; AUDIT; DAST; and Fagerström Test) and a semi-structured interview. Results 163 women at risk for dual pathology were assessed. Of them, 152 (93,2%) referred to having attended all scheduled appointments. Socioeconomic level (0.184, p=0.024), depression (-0.174, p=0.034), post-traumatic stress symptoms (-0.214, p=0.011) and alcohol reporting (-0.259, p=0.045) were significantly correlated with attendance level. Discussion Women with severe symptoms of dual pathology are at higher risk for misatending obstetrical appointments. Social criticism, even subtle or unintentional, related to dual pathology during pregnancy could be restraining these women to attend properly. Thus, care providers should pay attention to women's mental health and alcohol abuse to prevent miss-attention.2021-2

Estudio psicométrico piloto de un instrumento para evaluar el funcionamiento familiar: corresponsabilidad y consenso

The goal of this study was the validation of an instrument to assess co-responsibility strategies and family agreement. Considering positive parenting as framework, communication, conflict negotiation and emotions constituted central axes. 220 parents completed an 18 Likert-item instrument. The reliability and validity of the instrument were analyzed: internal consistency, differential items functioning and the analysis of measurement invariance. A 3-factor structure was revealed: beliefs about motherhood and fatherhood, emotional communication and family agreement. Configurational invariance was maintained but not metric and scalar ones. Gender, educational level and labor occupation seemed to determine the parenting competence to be mother and father.El objetivo del estudio es validar un inventario que evalúa las dinámicas de corresponsabilidad y consenso familiar, donde la comunicación, la negociación de conflictos y las emociones son ejes centrales de la parentalidad positiva. 220 progenitores respondieron a un instrumento de 18 ítems. Se analizaron fiabilidad y validez de la prueba: consistencia interna, análisis diferencial de los ítems e invarianza de la medida. Se confirmaron 3 factores: imagen de maternidad/paternidad, comunicación emocional y consenso familiar; se mantuvo la invarianza configuracional pero no la métrica ni escalar. Género, nivel de estudios y ocupación laboral determinarían la competencia parental de ser padre y madre

VITAL phase 2 study: Upfront 5-fluorouracil, mitomycin-C, panitumumab and radiotherapy treatment in nonmetastatic squamous cell carcinomas of the anal canal (GEMCAD 09-02)

Aim: VITAL, a phase II single-arm study, aimed to evaluate efficacy and safety of panitumumab addition to 5-fluorouracil (5-FU), mitomycin-C (MMC) and radiotherapy (RT) in patients with localized squamous cell carcinoma of the anal canal (SCCAC). Methods: Adult, treatment-naïve SCCAC patients (Stage T2-T4, any N, M0) and ECOG-PS ≤2, received panitumumab (6 mg/kg, day 1 and Q2W; 8 weeks), 5-FU (1000 mg/m2/d, days 1-4 and 29-32), MMC (10 mg/m2, days 1 and 29) and RT 45 Gy (1.8 Gy/fraction) to the primary tumor and mesorectal, iliac and inguinal lymph nodes, plus 10-15 Gy boost dose to the primary tumor and affected lymph nodes. The primary objective was disease free survival rate (DFS) at 3-years (expected 3-year DFS rate: 73.7 ± 12%). Results: Fifty-eight patients (31 women; median age: 59 years; ECOG-PS 0-1:98%; TNM II [29%] (T2 or T3/N0/M0)/IIIA (T1-T3/N1/M0 or T4/N0/M0) [21%]/IIIB (T4/N1/M0 or any T/N2 or N3/M0) [47%]/nonevaluable [4%]) were included. The median follow-up was 45 months. The 3-year DFS rate was 61.1% (95% CI: 47.1, 72.4). The 3-year overall survival rate was 78.4% (95% CI: 65.1, 87.1). Eighteen patients (31.0%) required a colostomy within 2 years posttreatment. Grade 3-4 toxicities were experienced by 53 (91%) patients. Most common grade 3-4 treatment-related events were radiation skin injury (40%) and neutropenia (24%). No toxic deaths occurred. Improved efficacy in colostomy-free survival and complete response rate was observed in human papilloma virus positive patients. Conclusions: Panitumumab addition to MMC-5FU regimen in SCCAC patients increases toxicity and does not improve patients’ outcomes. RT plus MMC-5FU remains the standard of care for localized SCCAC patients.This work was supported by Amgen S.A

Anti-Inflammatory (M2) Response Is Induced by a sp(2)-Iminosugar Glycolipid Sulfoxide in Diabetic Retinopathy

Diabetic retinopathy (DR) is one of the most common complications of Diabetes Mellitus (DM) and is directly associated with inflammatory processes. Currently, neuro-inflammation is considered an early event in DR and proceeds via microglia polarization. A hallmark of DR is the presence of retinal reactive gliosis. Here we report the beneficial effect of (S (S),1R)-1-docecylsulfiny-5N,6O-oxomethylidenenojirimycin ((Ss)-DS-ONJ), a member of the sp(2)-iminosugar glycolipid (sp(2)-IGL) family, by decreasing iNOS and inflammasome activation in Bv.2 microglial cells exposed to pro-inflammatory stimuli. Moreover, pretreatment with (Ss)-DS-ONJ increased Heme-oxygenase (HO)-1 as well as interleukin 10 (IL10) expression in LPS-stimulated microglial cells, thereby promoting M2 (anti-inflammatory) response by the induction of Arginase-1. The results strongly suggest that this is the likely molecular mechanism involved in the anti-inflammatory effects of (S (S))-DS-ONJ in microglia. (S (S))-DS-ONJ further reduced gliosis in retinal explants from type 1 diabetic BB rats, which is consistent with the enhanced M2 response. In conclusion, targeting microglia polarization dynamics in M2 status by compounds with anti-inflammatory activities offers promising therapeutic interventions at early stages of DR