Los xerofluvents de la hoja de Linares

Four Xerofluvents from the Linares map (1 :50.000), sampled in the newst terraces of Guadalquivir, Guadalimar, Guadiel and Rumblar rivers, were studied: Soil classification in diferent systems (C.P.C.S., FAO-UNESCO, SOIL TAXONOMY, REFERENTlEL PEDOLOGIQUE) are similar an all cases Xerofluvents, Fluvisols, or aluvial soils. Other important characteristic are: variable mineralogy of sand; illitic clay; a little pedogenetic evolution in coleur and structure inherited from parent material; commonly lithological discontinuites; in two cases reddish and yellowish spots, owing to oxiduced deep free water.Se estudian cuatro Xerofluvents representativos de la Hoja topográfica de Linares (1:50.000), en la terrazas recientes de los ríos Guadalquivir, Guadilmar, Guadiel y Rumbal. La clasificación en diversos sistemas (C.P.C.S., FAO-UNESCO, SOIL TAXONOMY, REFERENTIEL PEDOLOGIQUE) responde bien a sus tipologías y se trata en todos los casos de Xerofluvents, Fluviosoles, o suelos aluviales brutos. Otros caracteres importantes son: mineralogía de la facción arena; muy variable; arcillas esencialmente ilíticas; cierta evolución edafogenética en la estructura y en el color heredada del material de partida (sedimento aluvial preedafizado), frecuentes discontinuidades litológicas puestas de manifiesto en diversas características morfológicas y analíticas; en algunos casos, condiciones de hidromorfía por una capa freática no reductora generando manchas de color amarillento y rojizos

Los xerofluvents de la hoja de Linares

Se estudian cuatro Xerofluvents representativos de la Hoja topográfica de Linares (1:50.000), en la terrazas recientes de los ríos Guadalquivir, Guadilmar, Guadiel y Rumbal. La clasificación en diversos sistemas (C.P.C.S., FAO-UNESCO, SOIL TAXONOMY, REFERENTIEL PEDOLOGIQUE) responde bien a sus tipologías y se trata en todos los casos de Xerofluvents, Fluviosoles, o suelos aluviales brutos. Otros caracteres importantes son: mineralogía de la facción arena; muy variable; arcillas esencialmente ilíticas; cierta evolución edafogenética en la estructura y en el color heredada del material de partida (sedimento aluvial preedafizado), frecuentes discontinuidades litológicas puestas de manifiesto en diversas características morfológicas y analíticas; en algunos casos, condiciones de hidromorfía por una capa freática no reductora generando manchas de color amarillento y rojizos.Four Xerofluvents from the Linares map (1 :50.000), sampled in the newst terraces of Guadalquivir, Guadalimar, Guadiel and Rumblar rivers, were studied: Soil classification in diferent systems (C.P.C.S., FAO-UNESCO, SOIL TAXONOMY, REFERENTlEL PEDOLOGIQUE) are similar an all cases Xerofluvents, Fluvisols, or aluvial soils. Other important characteristic are: variable mineralogy of sand; illitic clay; a little pedogenetic evolution in coleur and structure inherited from parent material; commonly lithological discontinuites; in two cases reddish and yellowish spots, owing to oxiduced deep free water

Provenance of quartz grains from soils over Quaternary terraces along the Guadalquivir River, Spain

This work was supported by a grant from the Ministerio de Economía, Industria y Competitividad de España (“Mediterranean Soil Typologies versus Quartz. At the frontier of pedogenic knowledge”; Ref. CGL2016-80308-P). Alberto Molinero-García acknowledges the PhD funding (BES-2017-080078) provided by MCIN/AEI /10.13039/501100011033 and FSE “El FSE invierte en tu futuro”. This work is part of the Doctoral Dissertation of Alberto Molinero-García. We thank Dr. Mathieu Duval and an anonymous reviewer for their constructive criticism of the script and their valuable suggestions. We also acknowledge Tanya Shew for English proofreading. Funding for open access charge: Universidad de Granada / CBUA.The characterisation of quartz grains’ chemical and mineralogical properties in sediments and sedimentary rocks is widely used in provenance studies. This paper analyses quartz grains from the coarse sand fraction in soils in Quaternary fluvial terraces (Guadalquivir River, southern Spain). The tentative soil ages are 0.3 ka (Haplic Fluvisol), 7 ka (Haplic Calcisol), 70 ka (Cutanic Luvisol), 300 ka (Lixic Calcisol) and 600 ka (Cutanic Luvisol). The quartz grains analyses shed light on the sedimentological history of these terraces. Scanning electron microscope cathodoluminescence (SEM-CL) characteristics, micro inclusion inventory established by Energy-dispersive X-ray spectroscopy (SEM-EDX) and trace element contents determined with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) of quartz grains permitted distinguishing six types of grains in the soils studied: metamorphic quartz (type 1), undeformed granitic quartz (type 2), strongly altered granitic quartz (type 3), recrystallised (deformed) granitic quartz (type 4), sandstone-derived quartz (type 5) and hydrothermal quartz grains (type 6). Metamorphic quartz grains (type 1) come from the Sierra Morena (Iberian Massif) and Sierra Nevada (Internal Betic Zone). Granitic quartz grains (types 2 to 4) come from Los Pedroches batholith and its associated plutons (Santa Elena and Linares). The sandstone-derived quartz type 5 comes from the numerous sandstone outcrops scattered in the central catchment area of the Guadalquivir River. Finally, hydrothermal quartz grains (type 6) originate from hydrothermal veins associated with subvolcanic rocks of the Los Pedroches batholith. Variations were noted in the proportions of quartz types in soils of different ages, attributed to spatial and temporal changes in the catchment area. The most remarkable change occurred between 500 and 240 ka ago when the catchment area extended into Sierra Nevadás metamorphic rocks, well reflected in type 1 content (lower in P2, P4, P5 and PM) and their characteristics (quartz with less healed fractures, less Al content, bigger mica microinclusions, smaller Al/Ti ratio) in the post-500–240 ka soils. Our study shows that the combined study of SEM-CL characteristics, micro inclusions (SEM-EDX), and trace element contents (LA-ICP-MS) of quartz grains is an efficient approach for characterising the provenance of quartz grains in the sand fraction of soils.CBUAMCINMediterranean Soil Typologies versus Quartz BES-2017-080078Faculty of Science and Engineering, University of ManchesterUniversidad de GranadaMinisterio de Economía, Industria y Competitividad, Gobierno de EspañaAgencia Estatal de Investigació

KELT-17: a chemically peculiar Am star and a hot-Jupiter planet

Context. The detection of planets orbiting chemically peculiar stars is very scarcely known in the literature. Aims. To determine the detailed chemical composition of the remarkable planet host star KELT-17. This object hosts a hot-Jupiter planet with 1.31 MJup detected by transits, being one of the more massive and rapidly rotating planet hosts to date. We aimed to derive a complete chemical pattern for this star, in order to compare it with those of chemically peculiar stars. Methods. We carried out a detailed abundance determination in the planet host star KELT-17 via spectral synthesis. Stellar parameters were estimated iteratively by fitting Balmer line profiles and imposing the Fe ionization balance, using the program SYNTHE together with plane-parallel ATLAS12 model atmospheres. Specific opacities for an arbitrary composition and microturbulence velocity vmicro were calculated through the Opacity Sampling (OS) method. The abundances were determined iteratively by fitting synthetic spectra to metallic lines of 16 different chemical species using the program SYNTHE. The complete chemical pattern of KELT-17 was compared to the recently published average pattern of Am stars. We estimated the stellar radius by two methods: a) comparing the synthetic spectral energy distribution with the available photometric data and the Gaia parallax, and b) using a Bayesian estimation of stellar parameters using stellar isochrones. Results. We found overabundances of Ti, Cr, Mn, Fe, Ni, Zn, Sr, Y, Zr, and Ba, together with subsolar values of Ca and Sc. Notably, the chemical pattern agrees with those recently published of Am stars, being then KELT-17 the first exoplanet host whose complete chemical pattern is unambiguously identified with this class. The stellar radius derived by two different methods agrees to each other and with those previously obtained in the literature.Comment: 5 pages, 8 figures, 2 tables, A&A accepte

Primary Essential Cutis Verticis Gyrata: A scalp condition that may appear in various disorders

Interesting Medical Imag

Rare Variants in 48 Genes Account for 42% of Cases of Epilepsy With or Without Neurodevelopmental Delay in 246 Pediatric Patients

In order to characterize the genetic architecture of epilepsy in a pediatric population from the Iberian Peninsula (including the Canary Islands), we conducted targeted exome sequencing of 246 patients with infantile-onset seizures with or without neurodevelopmental delay. We detected 107 variants in 48 different genes, which were implicated in neuronal excitability, neurodevelopment, synaptic transmission, and metabolic pathways. In 104 cases (42%) we detected variant(s) that we classified as pathogenic or likely pathogenic. Of the 48 mutated genes, 32 were dominant, 8 recessive and 8 X-linked. Of the patients for whom family studies could be performed and in whom pathogenic variants were identified in dominant or X-linked genes, 82% carried de novo mutations. The involvement of small copy number variations (CNVs) is 9%. The use of progressively updated custom panels with high mean vertical coverage enabled establishment of a definitive diagnosis in a large proportion of cases (42%) and detection of CNVs (even duplications) with high fidelity. In 10.5% of patients we detected associations that are pending confirmation via functional and/or familial studies. Our findings had important consequences for the clinical management of the probands, since a large proportion of the cohort had been clinically misdiagnosed, and their families were subsequently able to avail of genetic counseling. In some cases, a more appropriate treatment was selected for the patient in question, or an inappropriate treatment discontinued. Our findings suggest the existence of modifier genes that may explain the incomplete penetrance of some epilepsy-related genes. We discuss possible reasons for non-diagnosis and future research directions. Further studies will be required to uncover the roles of structural variants, epimutations, and oligogenic inheritance in epilepsy, thereby providing a more complete molecular picture of this disease. In summary, given the broad phenotypic spectrum of most epilepsy-related genes, efficient genomic tools like the targeted exome sequencing panel described here are essential for early diagnosis and treatment, and should be implemented as first-tier diagnostic tools for children with epilepsy without a clear etiologic basis

Density profile slope in Dwarfs and environment

In the present paper, we study how the dark matter density profiles of dwarfs galaxies in the mass range $10^8-10^{10} M_{\odot}$ are modified by the interaction of the dwarf in study with the neighboring structures, and by changing baryon fraction in dwarfs. As already shown in Del Popolo (2009), the slope of density profile of inner halos flattens with decreasing halo mass and the profile is well approximated by a Burkert's profile. The analysis shows that dwarfs who suffered a smaller tidal torquing (consequently having smaller angular momentum) are characterized by steeper profiles with respect to dwarfs subject to higher torque, and similarly dwarfs having a smaller baryons fraction have also steeper profiles than those having a larger baryon fraction. In the case tidal torquing is shut down and baryons are not present, the density profile is very well approximated by an Einasto profile, similarly to dwarfs obtained in dissipationless N-body simulations. We then apply the result of the previous analysis to the dark matter halo rotation curves of three different dwarfs, namely NGC 2976, known to have a flat inner core, NGC 5949 having a profile intermediate between a cored and a cuspy one, and NGC 5963 having a cuspy profile. After calculating baryon fraction, which is $\simeq 0.1$ for the three galaxies, we fitted the rotation curves changing the value of angular momentum. NGC 2976, has an higher value of ordered angular momentum ($\lambda \simeq 0.04$) with respect to NGC 5949 ($\lambda \simeq 0.025$) and in the case of NGC 5963 the very steep profile can be obtained with a low value of $\lambda$ ($\lambda \simeq 0.02$) and also decreasing the value of the random angular momentum. In the case of NGC 2976 tidal interaction with M81 could have also influenced the inner part of the density profile.Comment: 15 pages; 5 figures; 1 tabl

Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV

A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7 TeV is presented. The data were collected at the LHC, with the CMS detector, and correspond to an integrated luminosity of 4.6 inverse femtobarns. No significant excess is observed above the background expectation, and upper limits are set on the Higgs boson production cross section. The presence of the standard model Higgs boson with a mass in the 270-440 GeV range is excluded at 95% confidence level.Comment: Submitted to JHE