93 research outputs found

    The role of customer brand engagement in the use of Instagram as a “shop window” for fashion-industry social commerce

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    Versión aceptada no tiene restricciones en repositorio institucionalPurpose: To analyze how fashion consumers behave when they make purchases using social media platforms—specifically, Instagram. In particular, the work examines the role played by consumer–brand involvement and self–brand connection as predictors of customer brand engagement (CBE). Design/methodology/approach: Social commerce-adoption is modeled, using three variables: customer engagement, self–brand connection, and fashion-consumer brand-involvement. Using a personal online survey, data on social media users classified as Millennials and Generation Z were collected. The model is analyzed using structural equation modeling (SEM). Findings: Consumer involvement in fashion has a positive effect on cognitive processing and activation, but not on affection. Self–brand connection has a positive effect on all three dimensions analyzed. Finally, gender is found to exert a moderating effect on the relationship between the ‘CBE activation’ dimension and brand loyalty. Originality: The present study contributes to addressing the scarcity of studies dealing with CBE and social commerce in the fashion sector and, in particular, fashion-consumer behavior on social media (specifically, Instagram). Research limitations/implications The research was conducted during the lockdown imposed during the COVID-19 pandemic, which may have influenced the responses. Other limitations and potential lines of research for the future are presented at the end of the paper. Practical implications Some of the results of this study can directly inform the social media strategies of fashion companies that use Instagram as a channel of communication with their customers. They can also contribute to incentivizing co-created content and increasing consumption among both men and women.This work was partly supported by the Spanish National Research Programme (R+D+i Research Project ECO2017-88458-R, “NeuroTourism project”) and the Andalusian R+D+I Research Programme (Grant No: B-SEJ-209-UGR18, “Research in NeuroSOCOM”project)

    Analysis and proposal of intervention in a case of pregnancy delusion

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    Introducción: Se presenta el caso de una mujer con diagnóstico de esquizofrenia paranoide. Mantiene la creencia delirante de estar embarazada a pesar de la certeza y evidencia de lo contrario. Ha rechazado el tratamiento farmacológico así como realizarse determinadas pruebas médicas necesarias para la mejora de su salud por miedo a dañar al feto. Por motivos de accesibilidad para intervenir con la paciente, se presenta una evaluación exhaustiva junto al planteamiento de los objetivos de tratamiento, siendo este último diseñado de forma hipotética sin que haya sido posible su aplicación. Método: Se han utilizado diferentes fuentes de información, principalmente, la entrevista clínica y varios instrumentos sobre sintomatología positiva y ajuste psicosocial. Se sugiere como hipótesis explicativa de esta convicción delirante de embarazo, la interpretación errónea de experiencias perceptivas anómalas (amenorrea, náuseas, mareos, distensión abdominal…). Resultados: La focalización de la atención únicamente a las experiencias sobre el estado físico, debido al deseo de ser madre, junto a este sesgo en la interpretación estaría reforzando la propia ideación delirante de embarazo al convertirse en la única alternativa para explicar tal complejidad. No se aplicó la intervención propuesta debido al abandono del tratamiento. Discusión: Para una mejor comprensión de este tipo de problemática, en cuanto a su naturaleza y factores implicados así como para el diseño de intervenciones psicológicas eficaces, se insiste en la importancia de realizar un mayor número de investigacionesIntroduction: The case of a woman with paranoid schizophrenia diagnosis is presented. She showed the delusional belief of being pregnant, conception that faithfully remains despite of the certainty and evidence of the opposite. She has denied drug treatment and medical tests needed to improve their health made for fear of damaging the fetus. Due to receptiveness reasons to interact with the patient, a thorough examination is made along with the treatment objectives, being this last one designed hypothetically because its application has never been possible. Method: Many different information sources has been used, mainly the clinical interview and few instruments related to positive symptomatology and psychosocial adjustment. As an explanatory hypothesis suggested for the delusional conviction of being pregnant, the wrong interpretation of abnormal perceptive experiences (amenorrhea, nauseas, dizziness, abdominal distension…). Results: To focus the attention uniquely on the experiences of the physical condition, due to the desire of being a mother, along with this bias on the interpretation would be reinforcing its own delusional conception of pregnancy becoming the only alternative to explain such a complexity. Did not apply the proposed intervention due to the abandonment of treatment. Discussion: For a better comprehension of this problematic type, regarding to its nature and implied factors as well as for the design of effective psychological interventions, it insists on the importance of carry out a greater number of researches

    Effects of flow separation on point bars sequences. Upper Oligocene examples of the Loranca Basin

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    El registro estratigráfico del Eoceno-Mioceno de la cuenca de Loranca está formado por sedimentos fluviales, aluviales y lacustres. Durante el Oligoceno Superior los depósitos de ríos meandriformes del abanico fluvial de Tórtola se extendieron por el centro de la cuenca y su margen oeste. Las barras de meandro del abanico de Tórtola presentan diferencias con el modelo de facies básico, en el que la secuencia de estructuras sedimentarias está producida por una disminución de la velocidad de la corriente. Las secuencias fining-upwards graduales no son las más frecuentes en las barras de meandro del Oligoceno de la cuenca de Loranca. La estructura sedimentaria más abundante es la estratificación cruzada de pequeña escala rellenando surcos erosivos, que puede presentarse en toda la sección de la barra de meandro. La estratificación cruzada de ripples compone a su vez otras formas del lecho que se caracterizan por una morfología de crestas longitudinales. Estas formas compuestas se interpretan como formas del lecho generadas por vórtices espirales en zonas de separación de flujo.In the Loranca Basin the Eocene to Miocene stratigraphic record consists of fluvial, alluvial and lacustrine sediments. During Late Oligocene times meandering river deposits of the Tórtola fluvial fan extended on the central part of the basin and towards its western margin. Point bars of the Tórtola fan show departures from the basic facies model, where the sequence of sedimentary structures was generated by a decrease in flow velocity. Gradual fining-upward sequences are not frequent in the Oligocene point bars of the Loranca Basin. The most abundant sedimentary structure is small scale cross-stratification filling trough erosional surfaces, which can be present along the whole point bar section. Ripple cross-stratification in turn composed longitudinal ridges bed forms. These composite bed forms were probably generated by spiral vortices in flow separation zones.Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEpu

    Anchoring of 10-phenylphenothiazine to mesoporous silica materials: A water compatible organic photocatalyst for the degradation of pollutants

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    The application of organic photocatalysts towards the oxidation of pollutants in water is hampered by different limitations such as their insolubility in the media. Herein, we report that the grafting of a photo-organocatalyst into mesoporous silica materials is an ideal approach to obtain effective catalysts. Thereby, the photocatalyst 10-phenylphenothiazine (PTH) was easily anchored into three different mesoporous silica-based materials (MSN, MSU-2 and SBA-15) with different particle sizes and pore sizes through an amide bond formation. The materials were characterized using IR analysis, solid-state X-ray diffraction, porosity and microscopy (SEM and TEM) techniques, showing that PTH is immobilized inside the pores of the materials and its optical properties are maintained after the anchoring. Although homogeneous PTH was inactive in water media, the three photocatalytic materials were active for the degradation of pollutants. SBA-15-AP-PTH exhibited the highest catalytic performance towards the degradation of acetaminophen and diclofenac under solar irradiation, finding in this manner a new strategy for the decontamination of pollutantsThis work was financially supported by the European Research Council (ERC-CoG, No. 647550), Spanish Government (No. RTI2018- 095038-B-I00), and Spanish State Research Agency (No. PID2019-106186RB-I00/AEI/10.13039/ 501100011033

    Prediction of unplanned hospitalizations in older patients treated with chemotherapy

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    Purpose: To determine the incidence of unplanned hospitalization (UH) and to identify risk factors for UH in elderly patients with cancer who start chemotherapy. Methods: In all, 493 patients over 70 years starting new chemotherapy regimens were prospectively included. A pre-chemotherapy geriatric assessment was performed, and tumor and treatment variables were collected. The association between these factors and UH was examined by using multivariable logistic regression. Score points were assigned to each risk factor. Results: During the first 6 months of treatment, 37% of patients had at least one episode of UH. Risk factors were the use of combination chemotherapy at standard doses, a MAX2 index ≥1, a Charlson comorbidity score ≥2, albumin level <3.5 g/dL, falls in the past 6 months ≥1, and weight loss >5%. Three risk groups for UH were established according to the score in all patients: 0–1: 17.5%; 2: 34%; and 3–7: 57% (p < 0.001). The area under receiver operation characteristic (ROC) curve was 0.72 (95% CI: 0.67–0.77). Conclusion: This simple tool can help to reduce the incidence of UH in elderly patients with cancer who are scheduled to initiate chemotherapy treatmen

    Biodegradation of olive washing wastewater pollutants by highly efficient phenol-degrading strains selected from adapted bacterial community

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    The bacterial community of an olive washing water (OWW) storage basin was characterized, by both cultivation and cultivation-independent methods. PCR-TGGE fingerprints analysis of different samples, taken along the olive harvesting season, revealed important variations of the bacterial community structure showing rapid establishment of prevalent bacterial populations. Several bacteria, isolated from OWW, were cultivated, in media containing increasing amounts of polyphenols, in order to select high phenol-degrading strains for the effluent pollutants reduction. Strains PM3 and PM15, affiliated to Raoultella terrigena and Pantoea agglomerans by 16S rRNA gene sequencing, were selected and used for OWW biological treatment under batch conditions in shake flasks cultures. The OWW content of phenols, BOD5, COD and colour, was reduced by 93, 91, 89 and 62%, respectively, permitting effluent disposal and/or reuse with no additional treatments.This research was supported by European project Algatec (FP7/SME/2008/1/232331)

    Prediction of Chemotoxicity, Unplanned Hospitalizations and Early Death in Older Patients with Colorectal Cancer Treated with Chemotherapy

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    Simple Summary Chemotoxicity, unplanned hospitalizations (Uhs) and early death (ED) are common among older patients with cancer who receive chemotherapy. Our objective was to determine factors predicting these complications. A predictive score for these three complications based on geriatric, tumor and laboratory variables was developed in a series of 215 older patients with colorectal carcinoma receiving chemotherapy. The use of this score may reliably identify patients at risk to have excessive toxicity with chemotherapy, UH or ED, thus helping to plan treatment, implement adaptive measures, and intensify follow-up. Purpose: To identify risk factors for toxicity, unplanned hospitalization (UH) and early death (ED) in older patients with colorectal carcinoma (CRC) initiating chemotherapy. Methods: 215 patients over 70 years were prospectively included. Geriatric assessment was performed before treatment, and tumor and treatment variables were collected. The association between these factors and grade 3-5 toxicity, UH and ED (<6 months) was examined by using multivariable logistic regression. Score points were assigned to each risk factor. Results: During the first 6 months of treatment, 33% of patients developed grade 3-5 toxicity, 31% had UH and 23% died. Risk factors were, for toxicity, instrumental activities of daily living, creatinine clearance, weight loss and MAX2 index; for UH, Charlson Comorbidity Score, creatinine clearance, weight loss, serum albumin, and metastatic disease; and for ED, basic activities in daily living, weight loss, metastatic disease, and hemoglobin levels. Predictive scores were built with these variables. The areas under receiver operation characteristic (ROC) curves for toxicity, UH and ED were 0.70 (95% CI: 0.64-0.766), 0.726 (95% IC: 0.661-0.799) and 0.74 (95% IC: 0.678-0.809), respectively. Conclusion: Simple scores based on geriatric, tumor and laboratory characteristics predict severe toxicity, UH and ED, and may help in treatment planning

    Development and Validation of an Early Mortality Risk Score for Older Patients Treated with Chemotherapy for Cancer

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    Background: Estimation of life expectancy in older patients is relevant to select the best treatment strategy. We aimed to develop and validate a score to predict early mortality in older patients with cancer. Patients and Methods: A total of 749 patients over 70 years starting new chemotherapy regimens were prospectively included. A prechemotherapy assessment that included sociodemographic variables, tumor/treatment variables, and geriatric assessment variables was performed. Association between these factors and early death was examined using multivariable logistic regression. Score points were assigned to each risk factor. External validation was performed on an independent cohort. Results: In the training cohort, the independent predictors of 6-month mortality were metastatic stage (OR 4.8, 95% CI [2.4-9.6]), ECOG-PS 2 (OR 2.3, 95% CI [1.1-5.2]), ADL ≤ 5 (OR 1.7, 95% CI [1.1-3.5]), serum albumin levels ≤ 3.5 g/dL (OR 3.4, 95% CI [1.7-6.6]), BMI < 23 kg/m2 (OR 2.5, 95% CI [1.3-4.9]), and hemoglobin levels < 11 g/dL (OR 2.4, 95% CI (1.2-4.7)). With these results, we built a prognostic score. The area under the ROC curve was 0.78 (95% CI, 0.73 to 0.84), and in the validation set, it was 0.73 (95% CI: 0.67-0.79). Conclusions: This simple and highly accurate tool can help physicians making decisions in elderly patients with cancer who are planned to initiate chemotherapy treatment
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