Nuevos datos sobre "Myxomycetes" presentes en la provincia de Granada (España)

En el presente trabajo se aportan nuevos datos sobre el conocimiento de los Myxomycetes de Granada (sur de España), citándose catorce nuevas especies, entre las que ne destacan: Comatricha alta Preusz, Diderma trevelyanii (Grev.) Fr., Diderma umbilicatum Pers., Didymium bahiense Gottsberger, Didymium difforme (Pers.) S.F. Gray, Didymium trachysporum G. Lister, Lamproderma scintillans (Berk. & Br.) Morgan, Physarum contextum (Pers.) Pers., Physarum vernum Somm. y se amplía la corologia de varias especies ya citadas en anteriores trabajos. Se comenta la distribución en la Peninsula Ibérica, confeccionándose mapas de distribución de dichos tazones basados en cuadrícula UTM de 50 Km.This article shows a study on the Myxomycetes on the province of Granada (Spain). We have found fourteen new taxa for this province. Some of these are: Comatricha alta Preusz, Diderma trevelyanii(Gres.) Fr., Diderma umbilicatum Pers., Didymium bahiense Gottsberger, Didymium difforme (Pers.) S.F. Gray, Didymium trachysporum G. Lister, Lamproderma scintillans (Berk. & Br.) Morgan, Physarum contextum (Pers.) Pers., Physarum vernum Somm. Distribution maps are given. We also included new dates about the chorology another species

Guía para el estudio de la taxonomía y ecología de Myxomycetes

Los Myxomycetes, también llamados hongos mucilaginosos plasmodiales, son un grupo de organismos eucariotas directamente relacionados con los Protozoos, por lo que también se les conoce como Mycetozoa. Están presentes en casi todos los ecosistemas terrestres, se alimentan, basicamente de bacterias, levaduras y de otros hongos, contribuyen a la descomposición de materia orgánica vegetal, a la formación de suelo, y al control de poblaciones microbianas, por lo que tienen un papel ecológico importante pero desconocido. Se caracterizan por su fase trófica o asimiladora, el plasmodio, que es una ameba gigante, con protoplasma acelular, multinucleado, móvil, de vida libre, que alterna con una fase reproductora caracterizada por la formación de esporas en el interior de un receptáculo no celular, el esporóforo. Su nombre deriva del griego (myxo = mucilago y myketes = hongo) y fue utilizado por primera vez por el botánico alemán Henrick Link en 1833. Pese a que Link los consideró hongos, otro alemán, Anton de Bary, quien estudio con detalle su ciclo de vida, los consideró más vinculados a los protozoos y los llamó Mycetozoa (del griego mykes = hongo y zoon = animal). Por ambos nombres los podemos encontrar en la bibliografía. Se conocen mas de 1000 especies en todo el mundo (Lado, 2005- 2020). Tras un periodo de lluvias es frecuente encontrar sus fructificaciones sobre restos vegetales en descomposición (troncos, ramas, hojas, etc.), o en corteza de árboles vivos, e incluso en inflorescencias de plantas, restos de cactáceas o estiércol de animales herbívoros. Su tamaño es muy pequeño, por lo general miden de 1-2 mm de altura total, pero algunas especies pueden alcanzar varios centímetros, mientras que otras apenas sobrepasan los 0,1 mm. Sus formas y colores son muy variados, algunos muy llamativos y para detectarlos en el campo es muy útil un cuenta hilos o una pequeña lupa de mano. Pese a su reducido tamaño es fácil encontrarlos en sitios húmedos y sombreados, e incluso varias especies juntas en un mismo sustrato. La mayoría tienen una amplia distribución, pero algunas especies se restringen geograficamente a zonas tropicales, a áreas de alta montaña o a zonas desérticasGobierno de España (Proyecto Myxotropic, PGC2018-094660-B-I00, MCIU/AEI/FEDER, UE)UCR::Sedes Regionales::Sede del Atlántico::Recinto de Paraíso::Finca Experimental Interdisciplinaria de Modelos Agroecológicos (FEIMA

Myxomycete diversity in Costa Rica

An updated analysis of myxomycete diversity in Costa Rica is provided herein as a product of an extensive data mining-based study intended to normalize the information on myxomycetes from that country. Within the context of the Mesoamerican Biodiversity Hotspot, the 242 species of myxomycetes are reported herein demonstrated the potential of this area for diversity-based studies. For the construction of the updated species list, a thorough analysis that included examination of vouchers and a literature review has been carried out, and some species previously included in other works have been rejected due to inconsistencies or misidentification. The present contribution is essential to address the Wallacean shortfall within Mesoamerica and important for providing updated data on microorganisms in the context of regional biodiversity monitoringUniversidad de Costa Rica/[570-B8-006]/UCR/Costa RicaUniversidad de Costa Rica/[731-B8-900]/UCR/Costa RicaConsejo Superior de Investigaciones Científicas/[COOPB20155]/CSIC/EspañaUCR::Sedes Regionales::Sede del Atlántico::Recinto de Paraíso::Finca Experimental Interdisciplinaria de Modelos Agroecológicos (FEIMA

Electrocatalytic performance and stability of nanostructured Fe–Ni pyrite-type diphosphide catalyst supported on carbon paper

A simple and effective method to prepare an active and stable nanostructured working electrode for electrochemical water splitting is described. Specifically, mixed Fe–Ni diphosphide was prepared by sputtering a 200-nm-thick layer of Permalloy onto carbon paper gas diffusion layer followed by gas transport phosphorization reaction. The mass density of the resultant diphosphide phase was established to be 1.1 mg/cm2. Energy-dispersive X-ray microanalysis shows that the actual elemental composition of the resultant ternary electrocatalyst is approximately Fe0.2Ni0.8P2, while the powder X-ray diffraction analysis confirms that the electrocatalyst crystallizes in NiP2 cubic pyrite-like structure. As a cathode for hydrogen evolution reaction (HER) in acidic and alkaline electrolytes, this earth-abundant electrode has exchange current densities of 6.84103 and 3.16103 mA/cm2 and Tafel slopes of 55.3 and 72.2 mV/dec, respectively. As an anode for oxygen evolution reaction (OER) in alkaline electrolyte, the electrode shows an exchange current density of 2.88104 mA/cm2 and Tafel slope of 49.3 mV/dec. The observed high activity of the electrode correlates well with its electronic structure, which was assessed by density functional theory (DFT) calculations. The stability of Fe0.2Ni0.8P2 electrocatalyst in HER and OER was evaluated by means of accelerated degradation test and chronopotentiometry. The results of these experiments elucidate partial dissolution and entire chemical transformation of Fe0.2Ni0.8P2 as the main mechanisms of the electrode degradation during HER and OER, respectively. Overall, our findings could facilitate the composition-based design of active, stable, and durable phosphide electrodes for electrochemical water splitting.We thank all members of the Nanomaterials Synthesis Unit at the INL for their fruitful scientific and technical input, as well as Dr. X. Wang for his help with the electrocatalytic data analysis. This investigation has benefited from the financial support provided by the European Union Horizon 2020 NMP programme through the CritCat project under grant agreement no. 686053, as well as ERDF funds through the Portuguese Operational Programme for Competitiveness and Internationalization (COMPETE 2020), and National Funds through the Portuguese Foundation for Science and Technology (FCT), under the PrintPV project PTDC/CTM-ENE/5387/2014 (grant agreement no. 016663). J.D.C. thanks the FCT PhD grant SFRH/BD/79393/2011, while J.L.L. thanks Marie-Curie-ITN607904-SPINOGRAPH project for the PhD grant

PrediCTC, liquid biopsy in precision oncology: a technology transfer experience in the Spanish health system.

Purpose: Management of metastatic disease in oncology includes monitoring of therapy response principally by imaging techniques like CT-Scan. In addition to some limitations, the irruption of liquid biopsy and its application in personalized medicine has encouraged the development of more efficient technologies for prognosis and follow-up of patients in advanced disease. Methods: PrediCTC constitutes a panel of genes for the assessment of Circulating Tumor Cells (CTC) in metastatic colorectal cancer patients, with demonstrated improved efficiency compared to CT-Scan for the evaluation of early therapy response in a multicenter prospective study. In this work, we designed and developed a technology transfer strategy to define the market opportunity for an eventual implementation of PrediCTC in the clinical practice. Results: This included the definition of the regulatory framework, the analysis of the regulatory roadmap needed for CE mark, a benchmarking study, the design of a product development strategy, a revision of intellectual property, a cost-effectiveness study and an expert panel consultation. Conclusion: The definition and analysis of an appropriate technology transfer strategy and the correct balance among regulatory, financial and technical determinants are critical for the transformation of a promising technology into a viable technology, and for the decision of implementing liquid biopsy in the monitoring of therapy response in advanced disease.pre-print533 K

Development and validation of a clinical score to estimate progression to severe or critical state in Covid-19 pneumonia hospitalized patients

The prognosis of a patient with Covid-19 pneumonia is uncertain. Our objective was to establish a predictive model of disease progression to facilitate early decision-making. A retrospective study was performed of patients admitted with Covid-19 pneumonia, classified as severe (admission to the intensive care unit, mechanic invasive ventilation, or death) or non-severe. A predictive model based on clinical, analytical, and radiological parameters was built. The probability of progression to severe disease was estimated by logistic regression analysis. Calibration and discrimination (receiver operating characteristics curves and AUC) were assessed to determine model performance. During the study period 1,152 patients presented with Covid-19 infection, of whom 229 (19.9%) were admitted for pneumonia. During hospitalization, 51 (22.3%) progressed to severe disease, of whom 26 required ICU care (11.4); 17 (7.4%) underwent invasive mechanical ventilation, and 32 (14%) died of any cause. Five predictors determined within 24 hours of admission were identified: Diabetes, Age, Lymphocyte count, SaO2, and pH (DALSH score). The prediction model showed a good clinical performance, including discrimination (AUC 0.87 CI 0.81, 0.92) and calibration (Brier score = 0.11). In total, 0%, 12%, and 50% of patients with severity risk scores ≤5%, 6-25%, and >25% exhibited disease progression, respectively. A simple risk score based on five factors predicts disease progression and facilitates early decision-making according to prognosis.Carlos III Health Institute, Spain, Ministry of Economy and Competitiveness (SPAIN) and the European Regional Development Fund (FEDER)Instituto de Salud Carlos II

Human Resource Flexibility as a Mediating Variable Between High Performance Work Systems and Performance

Much of the human resource management literature has demonstrated the impact of high performance work systems (HPWS) on organizational performance. A new generation of studies is emerging in this literature that recommends the inclusion of mediating variables between HPWS and organizational performance. The increasing rate of dynamism in competitive environments suggests that measures of employee adaptability should be included as a mechanism that may explain the relevance of HPWS to firm competitiveness. On a sample of 226 Spanish firms, the study’s results confirm that HPWS influences performance through its impact on the firm’s human resource (HR) flexibility

The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All of the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 deg2 of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include the measured abundances of 15 different elements for each star. In total, SDSS-III added 5200 deg2 of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 deg2; 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra. \ua9 2015. The American Astronomical Society

Estudios sobre "Myxomycetes". VI

Some new data, mainly of chorologic interest, are added here to the wealth of information recently acquired on the Iberian Myxomycetes (cf. ALMEIDA, 1976,1979; GRACIA & LLIMONA. 1980; GALÁN & al., 1984; NANNENGA-BREMEKAMP & LADO, 1985). We underline the following new records for the Iberian mycoflora: Badhamia versicolor Lister, Clastoderma pachypus Nann.-Brem., Ucea parasitica (Zukal) G. W. Martin, Macbrideola cornea (G. Lister & Cran) Alexop. and Symphytocarpus amaurochaetoides Nann.-Brem.A los datos que en los últimos años han incrementado el conocimiento de los Myxomycetes ibéricos (cf. ALMEIDA. 1976,1979; GRACIA & LLIMONA. 1980; GALÁN & al., 1984; NANNENGABREMEKAMP & LADO. 1985) añadimos aquí algunos de interés fundamentalmente corológico. Destacamos, por ser novedades para la micoflora ibérica, las siguientes especies: Badhamia versicolor Lister, Clastoderma pachypus Nann.-Brem., Liceo parasitica (Zukal) G. W. Martin, Macbrideola cornea (G. Lister & Cran) Alexop. y Symphytocarpus amaurochaetoides Nann.-Brem