El proceso de mediación tecnológica en la enseñanza de la Física

This research responds to the need to contribute to the improvement of one of the current problems in the basic and professional training of university students, the process of technological mediation in teaching -learning of Physics, foundations and methodology for its implementation, which promotes a developer learning from a real context, research skills, and the development of creativity, with the use of information technology and communications (ICT), the construction of models, and technological means. It is based on explanatory theories of technological mediation process such as the possibility of investing less effort in learning, supplanting reality by showing it outside of it, and transferring it to other topics, contexts of social life and developer learning. A methodology was elaborated to give exit to this process, starting from the orienting base of the action, the later interactivity and interaction until the socialization of the activity what it enhances the collaborative and cooperative learning obtaining that it is significant and developer.Esta investigación responde a la necesidad de contribuir al mejoramiento de uno de los problemas actuales en la formación básica y profesional de los estudiantes universitarios, el proceso mediación tecnológica  en la enseñanza -aprendizaje de la Física, fundamentos y metodología  para su implementación, que fomente  un aprendizaje desarrollador  desde un contexto real, habilidades  investigativa, y el desarrollo de  la creatividad, con el empleo de la tecnología de la información y las comunicaciones (TIC), la construcción de maquetas, y medios tecnológicos. Se fundamenta  en las teorías explicativas de proceso mediación tecnológica como la posibilidad de invertir un menor esfuerzo en el aprendizaje, la suplanta la realidad mostrándola fuera de ella, y de transferirla a otros temas, contextos de la vida social y el aprendizaje desarrollador. Se elaboró una metodología para dar salida a dicho proceso, partiendo de la base orientadora de la acción, la posterior interactividad e interacción hasta la socialización de la actividad lo que  potencia el aprendizaje colaborativo y cooperativo logrando que sea  significativo y desarrollador

Efectos de la modernización de regadíos en consumo de agua, energía y coste

En: XIII Congreso de Comunidades de Regantes, Huelva, 14-15 Mayo 201

Literature review on rebound effect of water saving measures and analysis of a Spanish case study

The hypothesis of a rebound effect as a consequence of water saving investments is taken analogically from the Jevons paradox models in energy economics. The European Commission (EC) alert about the consequences in water stressed regions that are investing heavily in modernization of irrigation networks and systems. This paper reviews the literature, linking water savings with water diversion and water depletion, both from theoretical models and empirical evidence from the published research. In order to increase knowledge of this phenomenon, a new empirical case study is presented based on a survey of 36,000 ha of recently modernized irrigated areas in the Guadalquivir basin (southern Spain). The results of the case study illustrates the conditions that may avoid rebound effect, although the results of the available empirical evidence and the published theoretical research are diverse and lead to contradictory results. Further research is therefore needed to determine the causes and solutions of water saving investment impacts and the possible speculative rebound effect

Rediseño de Proceso de Ventas para la Empresa PCO S.A.S., e Implementación de Estrategias de Marketing

Después de la identificación de los inconvenientes en los procesos de ventas para la constructora PCO PROYECTOS DE CONSTRUCCIÓN Y OBRAS CIVILES S.A.S., que derivaron en la disminución de las ventas en los inmuebles ofertados, se planteó como oportunidad de mejora el diseño para la optimización en inclusión de publicidad en ventas para la empresa, para lo que fue vital la participación del gerente general, el área de ventas, y el acompañamiento de los mismos, con ellos se logró construir las estrategias para el desarrollo de las campañas publicitarias que facilitarán la optimización de los procesos de ventas.After identifying the inconveniences in the sales processes of the construction company PCO PROYECTOS DE CONSTRUCCIÓN Y OBRAS CIVILES SAS, which resulted in a decrease in sales in the properties offered, the design for the optimization of inclusion was raised as an opportunity to improve. Of advertising in sales for the company, for which the participation of the general manager, the sales area, and the accompaniment of them was vital, with them it was possible to build strategies for the development of advertising campaigns that facilitate the optimization of sales processes

Evaluación del niño febril. Un escenario común. Infección bacteriana severa y gérmenes: II parte

Se realizó un estudio descriptivo prospectivo siendo el universo 718 niños febriles menores de 36 meses, sin causa aparente de su proceso febril asistieron al Cuerpo de Guardia del Hospital Docente "Aleida Fernández Chardiet" en un período de 12 meses con el objetivo de identificar el comportamiento de los niños febriles. Los gérmenes más frecuentemente aislados resultaron ser Echerichia Coli, Proteus, Klebsiella y Estafilococos Aureus; resultó más frecuente en el grupo de 29-59 días el Estreptococo B. hemolítico del grupo B y en edades posteriores la Echerichia Colique causó la mayoría de las Infecciones del Tracto Urinario, el Hemophilus Influinzae y Estreptococo produjeron casi la totalidad de las Meningoencefalitis Bacteriana, el Estafilococo la Bacteriemia y Neumonía. Se sugiere hacer en otras regiones del país estudios de este tipo y divulgar sus resultados

Mediterranean diet and risk of breast cancer: An umbrella review

Background The Mediterranean Diet (MedDiet) is a healthy dietary pattern which has been related to a lower risk of certain chronic diseases, such as some cancers. However, its role in breast cancer development remains unclear. This umbrella review aims to summarize the highest available evidence on MedDiet and breast cancer risk. Methods Pubmed, Web of Science, and Scopus electronic platforms were searched for relevant systematic reviews and meta-analyses. The selection criteria included systematic reviews with or without meta-analysis including women aged 18 years or older which evaluated the adherence to a MedDiet as the exposure and incidence of breast cancer as the outcome variable. Overlapping and quality of the reviews using AMSTAR-2 tool were independently assessed by two authors. Results Five systematic reviews and six systematic reviews with meta-analysis were included. Overall, 4 systematic reviews – two with and two without meta-analysis – were rated as of high quality. An inverse association was found in 5 of the 9 reviews which evaluated the role of MedDiet on the risk of total breast cancer. The meta-analyses showed moderate-high heterogeneity. The risk reduction seemed to be more consistent among postmenopausal women. No association was found for MedDiet among premenopausal women. Conclusions The results of this umbrella review suggest that adherence to a MedDiet pattern had a protective effect on the risk of breast cancer, especially for postmenopausal breast cancer. The stratification of breast cancer cases and conducting high-quality reviews are aspects needed to overcome the current results’ heterogeneity and to improve knowledge in this field.Funding for open access charge: Universidad de Málaga / CBU

Serum copper levels and risk of major adverse cardiovascular events: a systematic review and meta-analysis

Background: Despite the fact that several studies have investigated the association between serum copper levels (S-Cu) and the risk of cardiovascular diseases, this relationship remains unclear. The aims of this study were to investigate the association between S-Cu and risk of major adverse cardiovascular events (MACE), including total stroke, ischemic stroke, hemorrhagic stroke, myocardial infarction and cardiovascular mortality, and identify potential sources of results heterogeneity. Methods: We carried out a systematic review and meta-analysis. The selection criteria were: (1) Observational studies (cohort studies, case-control studies and hybrid studies); (2) Studies containing quantitative data about the relationship between S-Cu and risk of MACE; (3) Estimating association measures; and (4) Studies written in English, French or Spanish. Overall pooled Odds ratio (pOR) and 95% confidence intervals (95% CI) of MACE for the highest vs. lowest S-Cu category were calculated using random-effects models. Results: Sixteen studies with a total of 41,322 participants were included in the meta-analysis: 10 prospective cohort studies, 5 nested case-control studies and 1 case-control study. Comparing highest vs. lowest category, high S-Cu levels were associated with total stroke (pOR: 1.49, 95% CI 1.22–1.82; I2=0%, p=0.54), myocardial infarction (pOR: 1.31, 95% CI 1.17–1.46; I2=0.0%, p=0.92) and cardiovascular mortality (pOR: 1.60, 95% CI 1.39–1.86; I2=0.0%, p=0.54). Subgroup analysis showed that studies with a hybrid design had higher risks for cardiovascular mortality (pOR: 3.42, 95% CI 1.98–5.92) and ischemic stroke (pOR: 1.54, 95% CI 1.30–1.83). Conclusion: High S-Cu levels were associated with an increased risk of total stroke, myocardial infarction and cardiovascular mortality. Hybrid studies seems to modify the strength of the association between S-Cu and the risk of cardiovascular mortality and ischemic strok

Serum copper levels and risk of major adverse cardiovascular events: a systematic review and meta-analysis

BackgroundDespite the fact that several studies have investigated the association between serum copper levels (S-Cu) and the risk of cardiovascular diseases, this relationship remains unclear. The aims of this study were to investigate the association between S-Cu and risk of major adverse cardiovascular events (MACE), including total stroke, ischemic stroke, hemorrhagic stroke, myocardial infarction and cardiovascular mortality, and identify potential sources of results heterogeneity.MethodsWe carried out a systematic review and meta-analysis. The selection criteria were: (1) Observational studies (cohort studies, case-control studies and hybrid studies); (2) Studies containing quantitative data about the relationship between S-Cu and risk of MACE; (3) Estimating association measures; and (4) Studies written in English, French or Spanish. Overall pooled Odds ratio (pOR) and 95% confidence intervals (95% CI) of MACE for the highest vs. lowest S-Cu category were calculated using random-effects models.ResultsSixteen studies with a total of 41,322 participants were included in the meta-analysis: 10 prospective cohort studies, 5 nested case-control studies and 1 case-control study. Comparing highest vs. lowest category, high S-Cu levels were associated with total stroke (pOR: 1.49, 95% CI 1.22–1.82; I2 = 0%, p = 0.54), myocardial infarction (pOR: 1.31, 95% CI 1.17–1.46; I2 = 0.0%, p = 0.92) and cardiovascular mortality (pOR: 1.60, 95% CI 1.39–1.86; I2 = 0.0%, p = 0.54). Subgroup analysis showed that studies with a hybrid design had higher risks for cardiovascular mortality (pOR: 3.42, 95% CI 1.98–5.92) and ischemic stroke (pOR: 1.54, 95% CI 1.30–1.83).ConclusionHigh S-Cu levels were associated with an increased risk of total stroke, myocardial infarction and cardiovascular mortality. Hybrid studies seems to modify the strength of the association between S-Cu and the risk of cardiovascular mortality and ischemic stroke.Systematic review registration[https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022370782], identifier [CRD42022370782]

Psychological Impact of COVID-19 in the Setting of Dentistry: A Review Article

The worldwide pandemic has exposed healthcare professionals to a high risk of infection, exacerbating the situation of uncertainty caused by COVID-19. The objective of this review was to evaluate the psychological impact of the COVID-19 pandemic on dental professionals and their patients. A literature review was conducted using Medline-Pubmed, Web of Science, and Scopus databases, excluding systematic reviews, narratives, meta-analyses, case reports, book chapters, short communications, and congress papers. A modified version of the Newcastle-Ottawa Scale (NOS) was used to evaluate the quality of the selected studies. The search retrieved 3879 articles, and 123 of these were selected for the review (7 longitudinal and 116 cross-sectional studies). Elevated anxiety levels were observed in dental professionals, especially in younger and female professionals. Except for orthodontic treatments, patients reported a high level of fear that reduced their demand for dentist treatment to emergency cases alone. The results suggest that the COVID-19 pandemic has had psychological and emotional consequences for dental professionals and their patients. Further research is necessary to evaluate the persistence of this problem over time.Universidad de Granada, Plan Propio de Investigacion PPJIA2021-3

Vólvulo gástrico. Presentación de un caso

El vólvulo gástrico es una entidad poco frecuente. Se realizó por primera vez, en el Hospital Universitario “Leopoldito Martínez” el diagnóstico radiográfico de esta entidad, en un paciente con antecedentes de trastornos dispépticos y que comienzó con vómitos incontrolables, distención abdominal y epigastralgias, la confirmación diagnóstica se logró en el acto quirúrgico, detectándose que la causa era una brida, aunque en el estudio histopatológico el paciente era portador de un de carcinoma gástrico difuso tipo linitis plástica.