106 research outputs found

    El nudging como estrategia de educación ambiental en entornos digitales en la universidad de salamanca

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    Este proyecto pretende mejorar la educación ambiental de la comunidad universitaria a través del nudging como estrategia educativa en entornos digitales de la Universidad de Salamanca, mediante un estudio de diagnóstico o estudio conceptual, un estudio experimental y una propuesta estratégica institucional escalable y extensible para otras universidade

    Daily consumption of a dairy drink enriched with DHA, Vitamins and minerals enhanced nutritional status and cognitive abilities parameters

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    Preadolescence is a period of growth with special nutritional requirements. In this research we investigated the effects produced by a 5-month consumption of an enriched dairy drink on biochemical and cognitive development parameters in children. Methods: 119 children (8 14y) of both genders (male 49%, female 51%) were randomly distributed into two study groups. The supplemented group (SG, n = 60) consumed 0.6 L/day (breakfast, elevenses and teatime) of an enriched dairy drink containing fish oils (high in DHA), oleic acid, carbohydrates (sugar and honey), vitamins (A, B complex, C, D, and E) and minerals (calcium, phosphorus, zinc) (Puleva Max®). The control group (CG, n = 59) consumed 0.6 L/day of standard whole milk. Both groups received the same dietary advice and consumed the dairy drinks for 5-moths, in addition to their usual diet. Blood samples and psychometric tests (some subscales of W.I.S.C.-IV of Wechsler and EVALUA of Vidal) were taken at 0 and 5 months. RM ANOVA was applied. Data are expressed as mean±SEM. Results: The consumption of the enriched dairy drink (SG) produced significant (p < 0.05) increases in plasma DHA (20%) and calcium (1.5%). Total proteins (1.9%), transferrine (2.1%), total cholesterol (3.3%) and HDLcholesterol (5.2%), but not LDL-cholesterol, decreased significantly in CG. Regarding psychometric parameters, digits span (working memory test), speed reading and reading comprehension scores showed significant increases in SG at the end of the study (16.8%, 19.1%, and 19.0% respectively) whereas CG only showed higher scores in the reading comprehension test (19.2%). Conclusion: The dietary supplementation with the enriched dairy drink improved the nutritional and biochemical status and a number of cognitive performance markers in children of 8 and 14 years. Supported by Puleva Food SA.Universidad e Granada Puleva Biotech S

    Booster effect after SARS-CoV-2 vaccination in immunocompromised hematology patients with prior COVID-19

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    Patients with hematological malignancies have been excluded from the new zoonotic coronavirus (severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2]) vaccine trials despite being at higher risk for SARS-CoV-2 disease (COVID-19)-related mortality. However, most health authorities worldwide have designated these patients as a priority for COVID-19 vaccination, even in the absence of efficacy data in these highly immunosuppressed patients. In addition, on 12 August 2021, the US Food and Drug Administration amended the emergency use authorizations for the Pfizer-BioNTech and Moderna COVID-19 vaccines to allow for the use of an additional dose in immunocompromised individuals, such as solid organ transplant recipients or equivalently immunosuppressed patients

    Sistema experimental para el estudio de la dosimetría en multifrecuencia

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    Multiple simultaneous exposures to electromagnetic signals from various sources (multiple frequencies with high bandwidth) is the real scenario in our daily life. In this study, we investigated the non thermal SAR (Specific Absorption Rate) in vivo rats exposed at multiple signals to electromagnetic (EM) fields -at frequencies of 900 and 2.450 MHz-, and 2 W power. The corresponding experimental system (ES) consisted of: two vector signal generators, a directional coupler, a spectrum analyzer, a signal mixer, a power meter, and the GTEM chamber itself -where the animal was located with the help of an appropriate holder. The 1g mean SAR values in the different anatomical regions of the nervous system and whole-body of the rat were estimated from experimental power measurements, and with the aid of a FDTD software tool. These novel protocols of radiation will be used to investigate biological effects on the small animal
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