92 research outputs found
Histoquímica del cervix uterino
Tesis inédita de la Universidad de Madrid, Facultad de Medicina, leída el 10-07-1961. Ej. mecanografiado firmado por el autor.Fac. de MedicinaTRUEProQuestpu
Fragmentation and low density as major conservation challenges for the southernmost populations of the European wildcat
Knowledge of population dynamics of threatened species in the wild is key to effective conservation actions. However, at present, there are many examples of endangered animals
for which their current situation is unknown, and not just in remote areas and less developed
countries. We have explored this topic by studying the paradigmatic case of the European
wildcat (Felis silvestris silvestris), an endangered small carnivore whose status has been
subjectively established on the basis of non-systematic approaches and opportunistic records. Little is known about its demographic situation, prompting the need for information to
improve conservation measures. However, the secretive behaviour of felines along with its
low density in natural conditions have prevented the gathering of sufficient data. We developed a field sampling strategy for one of the largest populations (Andalusia, South Spain,
87,268 km2
), based on a logistically viable systematic non-intrusive survey by camera-trapping. This study offers the first large-scale estimation for any European wildcat population,
based on analytical approaches applied on Species Distribution Models. A hierarchical
approach based on a Maxent model for distribution estimation was used, along with Generalised Linear Models for density estimation from explicit spatial capture-recapture data. Our
results show that the distribution range is smaller and more highly fragmented than previously assumed. The overall estimated density was very low (0.069 ±0.0019 wildcats/km2
)
and the protected areas network seems to be insufficient to cover a significant part of the
population or a viable nucleus in demographic terms. Indeed, the most important areas
remain unprotected. Our main recommendations are to improve the protected area network
and/or vigilance programs in hunting estates, in addition to studying and improving connectivity between the main population patches.The research was partially funded by
the Consejería de Medio Ambiente y Ordenación
del Territorio (www.juntadeandalucia.es >
medioambiente > site > portalweb) through the
European Union (FEDER Project http://www.
juntadeandalucia.es/medioambiente/site/portalweb/
menuitem.6ffc7f4a4459b86a1daa5c105510e1c/?
vgnextoid=05cf8706a8bb9510VgnVCM10000013
25e50aRCRD&vgnextchannel=05cf8706a8bb9510
VgnVCM1000001325e50aRCRD) and is part of the
Global Change Observatory of Sierra Nevada
(https://digibug.ugr.es/handle/10481/54686). J.M.
G.-S. was supported by a Prometeo fellowship
from the SENESCYT and the national agency for
Education and Science of the Government of
Ecuador (https://www.educacionsuperior.gob.ec/
prometeo/). There aren’t specific grant numbers or
funding from commercial companies. The funders
had no role in study design, data collection and
analysis, decision to publish, or preparation of the
manuscript
Integration of proteomics with transcriptomics and metallomics for the study of environmental issues
Comunicaciones a congreso
Essential Mineral Content (Fe, Mg, P, Mn, K, Ca, and Na) in Five Wild Edible Species of Lactarius Mushrooms from Southern Spain and Northern Morocco: Reference to Daily Intake
Mushroom consumption has increased in recent years due to their beneficial properties to the proper functioning of the body. Within this framework, the high potential of mushrooms as a source of essential elements has been reported. Therefore, the present study aims to determine the mineral content of seven essential metals, Fe, Mg, Mn, P, K, Ca, and Na, in twenty samples of mushrooms of the genus Lactarius collected from various locations in southern Spain and northern Morocco, by FAAS, UV-Vis spectroscopy, and ICP-OES after acid digestion. Statistics showed that K was the macronutrient found at the highest levels in all mushrooms studied. ANOVA showed that there were statistically significant differences among the species for K, P, and Na. The multivariate study suggested that there were differences between the accumulation of the elements according to the geographic location and species. Furthermore, the intake of 300 g of fresh mushrooms of each sample covers a high percentage of the RDI, but does not meet the recommended daily intake (RDI) for any of the metals studied, except for Fe. Even considering these benefits, the consumption of mushrooms should be moderated due to the presence of toxic metals, which may pose health risks.16 página
Layer-by-Layer Integration of Zirconium Metal-Organic Frameworks onto Activated Carbon Spheres and Fabrics with Model Nerve Agent Detoxification Properties
This research was funded by the Directorate for Planning, Technology, and Innovation (SDG PLATIN) from the Directorate General of Armaments and Material (DGAM) of the Spanish Ministry of Defense, COINCIDENTE Program exp. 1003219007500—NBQD2. The authors also acknowledge EU Feder funding, MINECO (CTQ2017-84692-R and PID2020-113608RB-I00), Universidad de Granada (Plan Propio de Investigación), and Junta de Andalucia (P18-RT-612). Funding for open access charge: Universidad de Granada/CBUA.We report the controlled synthesis of thin films of prototypical zirconium metal-organic frameworks [Zr6O4(OH)4(benzene-1,4-dicarboxylate-2-X)6] (X = H, UiO-66 and X = NH2, UiO-66-NH2) over the external surface of shaped carbonized substrates (spheres and textile fabrics) using a layer-by-layer method. The resulting composite materials contain metal-organic framework (MOF) crystals homogeneously distributed over the external surface of the porous shaped bodies, which are able to capture an organophosphate nerve agent simulant (diisopropylfluorophosphate, DIFP) in competition with moisture (very fast) and hydrolyze the P-F bond (slow). This behavior confers the composite material self-cleaning properties, which are useful for blocking secondary emission problems of classical protective equipment based on activated carbon.CBUADirectorate General of Armaments and MaterialDirectorate for Planning, Technology, and InnovationSpanish Ministry of Defense
1003219007500Universidad de Granad
Omic approaches in environmental risk assessment
Resumen de la comunicación presentada al XX Congreso de la Sociedad Española de Mutagénesis Ambiental – Córdoba 201
Evaluación de la calidad ambiental de ecosistemas acuáticos en el entorno del Parque Nacional de Doñana
Resumen de la comunicación presentada al XX Congreso de la Sociedad Española de Mutagénesis Ambiental – Córdoba 201
2-DE analysis of sera protein expression profiles in early stages of human neonatal development. A preliminary study.
Comunicaciones a congreso
Toxic elements and trace elements in Macrolepiota procera mushrooms from southern Spain and northern Morocco
Anthropogenic activities, such as mining and fossil fuel combustion, produce large amounts of pollutants that affect environmental homeostasis. Wild edible mushrooms fructify exposed to environmental conditions, proving to be efficient accumulators of trace elements and toxic and potentially toxic elements. Due to the increasing consumption of mushrooms worldwide, this is of public health concern. In this work, the total content of chromium (Cr), arsenic (As), cadmium (Cd), mercury (Hg), lead (Pb), copper (Cu), zinc (Zn), and selenium (Se) was determined by ICP-MS in the caps and stipes of the high valued wild edible mushroom Macrolepiota procera collected in several locations of the South of Spain and the North of Morocco. The results obtained have indicated that the cap of M. procera contains a broad spectrum of both toxic elements and trace elements, occurring in higher contents in this part of the fruiting body with respect to the stipe. Moreover, Cu was the predominant element found in the samples studied, followed by Zn in most of the cases. The one-way ANOVA/Kruskal-Wallis test indicated that there were no significant differences in metal and metalloid content between the geographical areas studied. In addition, the results obtained through Hierarchical Cluster Analysis (HCA) and Principal Component Analysis (PCA) support the conclusions drawn through univariate statistical studies, indicating that there is no obvious clustering trend for the M. procera cap samples based on the sampling area. The health risk assessment for M. procera caps showed a cause for concern related to Cr, Cd, As, and Hg due to frequent consumption of around 300 g of fresh caps per day during the mushrooming season. © 2022 The Author(s
- …