Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain

The pedological implications of lake water level fluctuations are complex, especially in lake margin, where topographical, hydrological, and sedimentary conditions are most variable. Lake water level fluctuations generate landscape elements, which provide insights into the processes involved in soil development and the extent of the zones affected by flooding/desiccation. Coupling information from detailed geomorphological inspections in the field, the mapping of the lakeshore, and the pedogenesis of each landscape element can provide a better understanding of these relationships, which was used to study the saline Gallocanta Lake, NE Spain, a semiarid intramontane lacustrine system that undergoes significant and rapid water level fluctuations. Geomorphic classification of the lake margin forms and environments served as a guide for soil sampling. The geomorphological survey revealed high diversity and contrast in the lake margin environment, from shores affected by coastal erosion to zones characterized by progradation/aggradation. Two soil toposequences and 11 pedons that were on different geomorphic units were studied on two margins of the lake. Following gradients in elevation, moisture, and salinity, soils showed a succession of Inceptisols to Aridisols, with Mollisols developed at intermediate positions and Aquic soils at the lake floor and southern shore. Soils had a sandy, loamy texture and a predominantly carbonatic composition, high variation in CCE (mean = 37%), texture, and coarse fragments throughout the soil profiles. Soil salinity was the highest at the lowest topographic position and in the upper soil horizons, where mean ECe = 188.6 dS m− 1 at 25 °C. In addition, the highest organic matter (6%) and gypsum (34%) content occurred at the lake floor. Soil color characteristics and concentrations, and depletions of Fe and Mn indicated redox changes associated with soil water saturation under carbonate and or saline conditions. Macro and micromorphological features of oxidized and reduced horizons indicated the alternation between palustrine (reduced) and non-palustrine (detrital, emerged, oxidized) events at different geomorphic and topographic positions, from the lake floor up to 7 m above it. Pedogenesis inferred and the littoral/submerged forms located at permanently emerged areas confirmed the past and present trend towards the desiccation of the lake. This study has improved our understanding of how soils form and develop within the context of geomorphic units, and can be used in making land-use decisions in the protected reserve and agricultural surroundings of the lake.This article is a result of the research project AGL2012-40100 funded by the MINECO and is a contribution to Andalusian Research Group P.A.I. RNM-328. We acknowledge the data provided by the Spanish Meteorological Agency (AEMET). E. Luna was financed by a fellowship from the Government of Aragón, Spain. The 2006 orthoimages and LIDAR data were supplied by the National Geographic Institute of Spain (Instituto Geográfico Nacional)

Effect of Aspirin on Cell Growth of Human MG-63 Osteosarcoma Line

Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used in bone tissue repair treatment for their pharmacological action. The objective of this study was to determine the effect of aspirin, on osteoblast growth, using MG63 cell line as osteoblast model. MTT spectrophotometry results showed that 20, 100, and 1000 μM aspirin doses have an inhibitory effect on growth. Cell cycle analysis revealed that aspirin doses of 100 and 1000 μM arrest the cell cycle in phase GO/G1. Parallel apoptosis/necrosis studies showed no changes in comparison to control cells after treatment with 1 or 10 μM aspirin but a significantly increased percentage of cells in apoptosis at doses of 20, 100, and 1000 μM. We highlight that treatment of osteoblast-like cells with 1000 μM aspirin increased not only the percentage of cells in apoptosis but also the percentage of necrotic cells, which was not observed in aspirin treatments at lower doses

Chitosan-Gold Nanoparticle Composites for Biomedical Application

The aim of this work is to synthesize chitosan-gold nanoparticles films by direct chemical reduction of HAuCl4 in a chitosan solution and to investigate the influence of gold nanoparticles concentration on the structure of films, conductivity and healing effect on mice skin after surgery. Results obtained have shown that new chitosan-gold nanoparticle-collagen bionananocomposites demonstrated better healing effect on the mice skin after surgery than control performed on commercial TheraFormTM material. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3540

Genetic and serologic surveillance of rotavirus with P[8] and P[4] genotypes in feces from children in the city of Chihuahua, northern Mexico

Rotavirus vaccine was developed using the most prominent G and P genotypes circulating in children population. Therefore, severe gastroenteritis has been reduced around the world. This study investigated the G and P rotavirus genotypes circulating in children from two hospitals in the city of Chihuahua, Mexico. Additionally, polyclonal antibodies against Rotavirus Wa strain were used to determine their homotypic and heterotypic reactivity to both P[8] and P[4] genotypes. G1, G2, and G3 VP7 genotypes and P[8] and P[4] VP4 genotypes were detected in common and uncommon combinations as well as mixed infectious. The predominant combination was G1P[8]. Phylogenetic analysis of VP4 gene revealed the presence of P[8]-1 and P[8]-3 lineages of P[8] genotype and P[4]-5 lineage of P[4] genotype. All but five G1P[8] rotavirus were detected by polyclonal anti-Rotavirus Wa strain. Mutation analysis revealed differences in three of the four neutralizing epitopes previously reported to VP8* subunit of VP4 protein. Results of this study offer insights over genetic variants of field rotavirus that could be detected in a homotypic and heterotypic way by antibodies elicited to rotavirus with P[8] genotype. [Int Microbiol 2016; 19(1):27-32]Keywords: rotavirus · viral genotypes · lineages of virus · epitopes · Chihuahua, Mexico      &nbsp

Early Science with the Large Millimetre Telescope: Molecules in the Extreme Outflow of a proto-Planetary Nebula

Extremely high velocity emission likely related to jets is known to occur in some proto-Planetary Nebulae. However, the molecular complexity of this kinematic component is largely unknown. We observed the known extreme outflow from the proto-Planetary Nebula IRAS 16342-3814, a prototype water fountain, in the full frequency range from 73 to 111 GHz with the RSR receiver on the Large Millimetre Telescope. We detected the molecules SiO, HCN, SO, and $^{13}$CO. All molecular transitions, with the exception of the latter are detected for the first time in this source, and all present emission with velocities up to a few hundred km s$^{-1}$. IRAS 16342-3814 is therefore the only source of this kind presenting extreme outflow activity simultaneously in all these molecules, with SO and SiO emission showing the highest velocities found of these species in proto-Planetary Nebulae. To be confirmed is a tentative weak SO component with a FWHM $\sim$ 700 km s$^{-1}$. The extreme outflow gas consists of dense gas (n$_{\rm H_2} >$ 10$^{4.8}$--10$^{5.7}$ cm$^{-3}$), with a mass larger than $\sim$ 0.02--0.15 M$_{\odot}$. The relatively high abundances of SiO and SO may be an indication of an oxygen-rich extreme high velocity gas.Comment: Accepted for publication in Monthly Notices of the Royal Astronomical Society Letter

Please mind the gap—about equity and access to care in oncology

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Synthesis and Characterization of a New Cobalt(II) Complex with 2-(2-Pyridyl)Imino-N-(2-Thiazolin-2-yl)Thiazolidine (PyTT)

The compound aquanitrate-кObis[2-(2-pyridy)-imin-кN-N-(2-thiazin-кN-2-y)thiazidine]cbat() nitrate has been isolated and characterized by single crystal X-ray diffraction, IR spectroscopy, UV-Vis-NIR diffuse reflectance and magnetic susceptibility measurements. The environment around the cobalt atom may be described as a distorted octahedral geometry with the ligand-metal-ligand bite angles varying between 84.07(8)° and 98.66(8)°.The metallic atom is coordinated to two thiazoline nitrogens [av. Co-N =2.067 Å], two imino nitrogens [av. Co-N =2.122 Å], one oxygen atom of the nitrate group monodentate [Co-O(1)= 2.249(2) Å] and the oxygen atom of the water molecule [Co-O(IW)= 2.105(2) Å]. Electronic UV-Vis-NIR spectral data and the calculated magnetic moment are indicative of octahedral Co(ll) complexes. In the same way as other PyTT complexes, the organic moiety preserves the imino-thiazolidine form detected in the structure of PyTT