Producing lettuce in soil-based or in soilless outdoor systems. Which is more profitable?

[SPA] Este trabajo presenta una evaluación económica de dos sistemas de producción de lechuga, Cultivo en Suelo (CS) y Técnica de Película Nutritiva (TPN). En el sistema TPN, el rendimiento, la productividad del agua, el costo total, los ingresos y el beneficio fueron 5.5, 2.6, 6.2, 5.7 y 3.1 veces superior que en el sistema CS, respectivamente. La evaluación financiera mostró un valor presente neto en el sistema TPN 3.1 veces superior que el sistema CS, sin embargo, la tasa interna de retorno en el sistema CS fue 4 veces superior que en el sistema TPN. En este sentido, los mayores costos operacionales y de inversión en el sistema TPN permiten una menor proporción de ganancias/costos totales (0.079 contra 0.134). [ENG] This work presents an economic assessment of two lettuce production systems, soil cultivation (SC) and nutrient film technique (NFT). In the NFT system, the yield, the water productivity, the total cost, the revenue and the profit were 5.5, 2.6, 6.2, 5.7 and 3.1 times higher than in the SC system, respectively. The financial assessment showed a net present value in the NFT system 3.1 times higher than in the SC system, however, the internal rate of return in the SC system was 4 times higher than in the NFT system. In this sense, the higher investment and operational costs in the NFT system led to a lower ratio of profit/total costs (0.079 versus 0.134).Fundación Séneca – Agencia de Ciencia y Tecnología de la Región de Murcia [19280/PI/14] y la Comisión Europea (LIFE16 ENV/ES/000341, DESEACROP Project) por su apoyo

Aves de la Tierra de las Golondrinas: Isla de Cozumel

Non peer reviewe

Relationship between Anthropometric Measures and Anxiety Perception in Soccer Players

In the sports context, it has been corroborated that the physical demands of presenting an “ideal” body configuration have been associated with different psychological variables, such as self-esteem, anxiety and personality dimensions, such as perfectionism. Specifically, there is evidence that anthropometric measures may be closely related to psychological indicators. A total of 33 male soccer players (18.12 ± 1.24 years) participated in the investigation. Anthropometric assessments were carried out following the ISAK standards for the restricted profile. All of them completed the Competitive Trait Anxiety Inventory (CTAI-2D) in its Spanish version. The percent fat was calculated using Withers (density) and Siri equations. The ∑7 skinfolds were used to calculate this. After statistical analysis, significant mean differences were observed in the somatic anxiety dimension (valence) and a medium–large effect size. Regarding correlations, the significantly negative relationship between self-confidence (intentionality) and somatic anxiety (valence) was noteworthy. The relationship between psychological variables and anthropometric measurements was corroborated, showing the need for interdisciplinary work between psychologists and nutritionists who do not ignore the physical health and psychological well-being of the soccer player

Desarrollo de un sistema inalámbrico con un Field Point, para el control del llenado de un tanque clase A. Póster

Se consiguió supervisar, controlar y adquirir datos, de forma remota (UPCT) mediante un sistema SCADA desarrollado con LabVIEW, que se comunica de forma inalámbrica con un FieldPoint, permitiendo el registro de la evaporación y el control automático del llenado del tanque

Effect of genetic ancestry on leukocyte global DNA methylation in cancer patients

Background: the study of genetic variants alone is not enough to explain a complex disease like cancer. Alterations in DNA methylation patterns have been associated with different types of tumor. In order to detect markers of susceptibility for the development of cutaneous melanoma and breast cancer in the Uruguayan population, we integrated genetic and epigenetic information of patients and controls. Methods: we performed two case-control studies that included 49 individuals with sporadic cutaneous melanoma and 73 unaffected controls, and 179 women with sporadic breast cancer and 209 women controls. We determined the level of global leukocyte DNA methylation using relative quantification of 5mdC by HPLC, and we compared methylation levels between cases and controls with nonparametric statistical tests. Since the Uruguayan population is admixed and both melanoma and breast cancer have very high incidences in Uruguay compared to other populations, we examined whether individual ancestry influences global leucocyte DNA methylation status. We carried out a correlation analysis between the percentage of African, European and Native American individual ancestries, determined using 59 ancestry informative markers, and global DNA methylation in all participants. Results: we detected global DNA hypomethylation in leukocytes of melanoma and breast cancer patients compared with healthy controls (p < 0.001). Additionally, we found a negative correlation between African ancestry and global DNA methylation in cancer patients (p <0.005). Conclusions: these results support the potential use of global DNA methylation as a biomarker for cancer risk. In addition, our findings suggest that the ancestral genome structure generated by the admixture process influences DNA methylation patterns, and underscore the importance of considering genetic ancestry as a modifying factor in epigenetic association studies in admixed populations such as Latino ones

Desarrollo de un sistema de adquisición de datos climáticos para un invernadero. Poster

Utilizando una tarjeta de adquisición de datos y un bloque de acondicionamiento de señal de la empresa Nacional Instruments, para recibir y procesar la señal de distintos sensores climáticos, se ha desarrollado un sistema de supervisión del clima en un invernadero. Además, se ha incorporado una webcam que ha permitido conocer en todo momento y, a través de Internet, el estado del cultivo y estudiar sus relaciones con las distintas variables climáticas que le afectan. (Esta aplicación se ha desarrollado con carácter docente

A risk score to predict type 2 diabetes mellitus in an elderly spanish mediterranean population at high cardiovascular risk.

Introduction: To develop and test a diabetes risk score to predict incident diabetes in an elderly Spanish Mediterranean population at high cardiovascular risk. Materials and Methods: A diabetes risk score was derived from a subset of 1381 nondiabetic individuals from three centres of the PREDIMED study (derivation sample). Multivariate Cox regression model ß-coefficients were used to weigh each risk factor. PREDIMED-personal Score included body-mass-index, smoking status, family history of type 2 diabetes, alcohol consumption and hypertension as categorical variables; PREDIMED-clinical Score included also high blood glucose. We tested the predictive capability of these scores in the DE-PLAN-CAT cohort (validation sample). The discrimination of Finnish Diabetes Risk Score (FINDRISC), German Diabetes Risk Score (GDRS) and our scores was assessed with the area under curve (AUC). Results: The PREDIMED-clinical Score varied from 0 to 14 points. In the subset of the PREDIMED study, 155 individuals developed diabetes during the 4.75-years follow-up. The PREDIMED-clinical score at a cutoff of $6 had sensitivity of 72.2%, and specificity of 72.5%, whereas AUC was 0.78. The AUC of the PREDIMED-clinical Score was 0.66 in the validation sample (sensitivity = 85.4%; specificity = 26.6%), and was significantly higher than the FINDRISC and the GDRS in both the derivation and validation samples. Discussion: We identified classical risk factors for diabetes and developed the PREDIMED-clinical Score to determine those individuals at high risk of developing diabetes in elderly individuals at high cardiovascular risk. The predictive capability of the PREDIMED-clinical Score was significantly higher than the FINDRISC and GDRS, and also used fewer items in the questionnaire

Evaluación experimental de coberturas flotantes modulares en balsas de riego

Para mejorar la eficiencia global de los sistemas de riego resulta necesario mitigar las pérdidas en balsas mediante técnicas reductoras de la evaporación. Este trabajo contiene los resultados obtenidos tras el ensayo experimental como técnica mitigadora de la evaporación de dos prototipos de cobertura flotante modular, denominados EVAPOCONTROL-2 y EVAPO-CONTROL-G4. Los prototipos fueron evaluados durante sendos años en balsas agrícolas del sureste español con el fin de (1) determinar experimentalmente su eficiencia como tecnología para la reducción de la evaporación, y (2) verificar experimentalmente su efecto sobre la calidad de agua almacenada para su aplicación en riego agrícola. La cobertura EVAPO-CONTROL-G4 ha conseguido reducir la evaporación en un 77,52% durante el ensayo experimental de un año en Puerto Lumbreras, mejorando ligeramente los resultados del prototipo anterior EVAPO-CONTROL-2, que redujo la evaporación en un 76,16% al ser evaluado durante un año en una balsa experimental localizada en el Campo de Cartagena. Por tanto, este ensayo confirma que se trata de una tecnología eficiente para la reducción de la evaporación en balsas de riego, y que el nuevo prototipo mejora el comportamiento de la versión anterior. El factor de reducción de la evaporación no ha sido constante a lo largo del año, sino que ha variado desde el 70,80% en el mes de enero hasta el 81,56% en el mes de agosto. Respecto a los efectos de las coberturas EVAPO-CONTROL-2 y EVAPO-CONTROLG4 sobre la calidad del agua, la conductividad eléctrica se ha mantenido en valores muy reducidos y condicionados a la entrada de agua directa de lluvia. La concentración de clorofila-a (proxy de presencia de algas en la balsa) y el valor de turbidez también ha sido prácticamente nulos tras la instalación de la cobertura flotante, evidenciando la eficiencia de la cobertura como técnica de control de la concentración de microalgas en la balsa de riegoEn contenido de esta comunicación es fruto de las actividades desarrolladas en el marco de los contratos de investigación y desarrollo “Evaluación experimental del sistema de cobertura flotante modular EVAPO-CONTROL-2” y “Evaluación experimental del sistema de cobertura flotante modular EVAPO-CONTROL G4”, desarrollados durante los años 2018 y 2019 respectivamente por la Universidad Universidad Politécnica de Cartagena y la empresa Arana Water Management S.L

Condrodisplasia punctata: a propósito de un caso neonatal

Se presenta el caso de un neonato de ocho días de nacido que sufre de condrodisplasia punctata, una displasia esquelética infrecuente que muestra características radiológicas de calcificaciones puntiformes del cartílago en las epífisis y en las vértebras, acompañadas de defectos oculares, dermatológicos, alteraciones del sistema nervioso central y retardo del crecimiento. Se abordan los hallazgos clínicos y radiológicos para su diagnóstico

Metabolic Profile of chronic liver disease by NMR spectroscopy of human biopsies

Abstract Among the different processes occurring during the evolution of liver disease, fibrosis has a predominant role. Liver fibrosis mechanisms are fairly constant irrespective of the underlying etiology. Cirrhosis is the end-stage of this reaction. Metabolic profiles, which are affected by many physiological and pathological processes, may provide further insight into the metabolic consequences of this severe liver disease. The aim of this study was to demonstrate the applicability of 1H high resolution magic angle spinning (HR-MAS) NMR spectroscopy in the biochemical profile determination of human liver needle biopsy samples for the characterization of metabolic alterations related to the severity of liver disease. We recorded and analyzed HR-MAS spectra of 68 liver tissue samples obtained by needle biopsy from patients with chronic liver disease. Multivariate analysis was applied to these data to obtain discrimination patterns and to reveal relevant metabolites. The metabolic characterization of liver tissue from needle biopsies by HR-MAS NMR spectroscopy provided differential patterns for cirrhotic and non-cirrhotic chronic liver disease tissue. Metabolites closely related to the liver metabolism such as some fatty acids, glucose and amino acids show differences between the two groups. Phospholipid precursors, which have been previously correlated with hepatic lesions also show differences. Furthermore, the correlation between histologically assessed liver disease stages and the levels of the most discriminative metabolites show that liver dysfunction is present at the initial stages of chronic hepatic lesions. Overall, this work suggests that the additional information obtained by NMR metabolomics applied to needle biopsies of human liver may be useful for assessing metabolic alterations and liver dysfunction in chronic liver disease