We have studied in detail a sample of 967 SPIRE sources with 5σ detections at 350 and 500 μm and associations with Spitzer-SWIRE 24 μm galaxies in the HerMES-Lockman survey area, fitting their mid- ...and far-infrared, and submillimetre, spectral energy distributions (SEDs) in an automatic search with a set of six infrared templates. For almost 300 galaxies, we have modelled their SEDs individually to ensure the physicality of the fits. We confirm the need for the new cool and cold cirrus templates, and also of the young starburst template, introduced in earlier work. We also identify 109 lensing candidates via their anomalous SEDs and provide a set of colour–redshift constraints which allow lensing candidates to be identified from combined Herschel and Spitzer data. The picture that emerges of the submillimetre galaxy population is complex, comprising ultraluminous and hyperluminous starbursts, lower luminosity galaxies dominated by interstellar dust emission, lensed galaxies and galaxies with surprisingly cold (10–13 K) dust. 11 per cent of 500 μm selected sources are lensing candidates. 70 per cent of the unlensed sources are ultraluminous infrared galaxies and 26 per cent are hyperluminous. 34 per cent are dominated by optically thin interstellar dust (‘cirrus’) emission, but most of these are due to cooler dust than is characteristic of our Galaxy. At the highest infrared luminosities we see SEDs dominated by M82, Arp 220 and young starburst types, in roughly equal proportions.
Antimicrobial resistance is a global concern. Analysis of sterile fluids is essential because microorganisms are defined as significant in most cases. Blood, cerebrospinal, and pleural fluids are ...frequently received in the microbiology lab because they are associated with considerable rates of morbi-mortality. Knowledge of epidemiology in these samples is needed to choose proper empirical treatments due to the importance of reducing selection pressure.
We used retrospective laboratory data of blood, CSF, and pleural fluid collected from patients in Mexico between 2019 and 2020. Each laboratory identified the strains and tested susceptibility using its routine methods. For
, a comparative analysis was performed with data from the broth microdilution method.
Forty-five centers participated in the study, with 30,746 clinical isolates from blood, 2,429 from pleural fluid, and 2,275 from CSF. For blood and CSF,
was the most frequent. For blood, among gram negatives, the most frequent was
. Among
, 9.8% of
were carbapenem-resistant
For
, similar resistance percentages were observed for levofloxacin, cefotaxime, and vancomycin. For CSF, the most frequent gram-negative was
In
, carbapenem resistance was 71.4%. The most frequent species detected for pleural fluid was
; in
, carbapenem resistance was 96.3%.
Gram-negative bacteria, with
most prevalent, are frequently recovered from CSF, blood, and pleural fluid. In
, the routine, conventional methods showed good agreement in detecting resistance percentages for erythromycin, levofloxacin, and vancomycin.
One of the most important and complex diseases of modern society is metabolic syndrome. This syndrome has not been completely understood, and therefore an effective treatment is not available yet. We ...propose a possible stem cell mechanism involved in the development of metabolic syndrome. This way of thinking lets us consider also other significant pathologies that could have similar etiopathogenic pathways, like lipodystrophic syndromes, progeria, and aging. All these clinical situations could be the consequence of a progressive and persistent stem cell exhaustion syndrome (SCES). The main outcome of this SCES would be an irreversible loss of the effective regenerative mesenchymal stem cells (MSCs) pools. In this way, the normal repairing capacities of the organism could become inefficient. Our point of view could open the possibility for a new strategy of treatment in metabolic syndrome, lipodystrophic syndromes, progeria, and even aging: stem cell therapies.
Performances of PRIME PLC-RF Hybrid Communication Systems Sanz, Alfredo; Manero, Eduardo; Melguizo, Blanca ...
2023 IEEE International Symposium on Power Line Communications and its Applications (ISPLC),
2023-March-21
Conference Proceeding
This paper reviews the main changes in the new version of the PRIME standard, especially its evolution towards a hybrid system combining Power Line Communications (PLC) and Radio Frequency (RF). In ...particular, the current simulation results are presented by comparing the system performance in three Advanced Metering Infrastructure (AMI) use cases with each other and with the results of a previous work analyzing the new version of the G3 standard. The first case is an environment where all nodes are PLC and the PLC noise level allows connectivity in all areas of the site. The second case is an environment where all nodes are PLC+RF, the PLC noise level does not allow connectivity in some areas, and the system needs to switch to RF. The third case is an environment where half of the nodes are PLC+RF and the others half are RF only. This would be the situation of a system with electricity meters, which are hybrid PLC+RF, and gas or water meters, which are RF only. To evaluate their performance, some Key Performance Indicators suitable for these applications are introduced.
In the Midriff Islands region (MIR) of the Gulf of California (Mexico), tidal mixing plays a very important role in the distribution of chemical properties. Although the temporal variability of the ...water masses is linked to the ocean dynamics of this region, its importance has not been considered. This work estimates the effect of water mass dynamics on the spatial distribution and seasonal variation of dissolved inorganic carbon (DIC) in the region, with special emphasis on the Ballenas Channel, during winter 2002, spring 2003, and summer 2004. Gulf of California Water (GCW) was found throughout the area in the first 100 m. Below, Subtropical Subsurface Water (SSW) filled the Delfín, Salsipuedes, and Tiburón basins, while to the southeast it was found between 150 and 350 m. Pacific Intermediate Water did not cross the sills. SSW enriches the surface water of the MIR with DIC when it increases in volume and when mixed with GCW by tidal effects. This contribution decreases towards summertime, when SSW sinks and the volume of GCW increases. In winter, GCW had three water types associated with oceanographic mixing processes and in combination with the presence of SSW. There was a strong DIC vs temperature relationship, which can be applied to analyze the carbon dynamics in the MIR, both at the surface using satellite imagery and vertically to simulate physical processes.
En la región de las grandes islas (RGI) del golfo de California la mezcla por mareas juega un papel muy importante en la distribución de propiedades disueltas. Aunque la variabilidad temporal de las ...masas de agua está ligada con la dinámica oceanográfica de la región, su importancia no ha sido considerada. En este trabajo se estima el efecto de la dinámica de las masas de agua sobre la distribución espacial y variación estacional del carbono inorgánico disuelto (CID) en la RGI, con especial énfasis en el canal de Ballenas, durante el invierno de 2002, la primavera de 2003 y el verano de 2004. El Agua del Golfo de California (AGC) se encontró en toda la superficie en los primeros 100 m de profundidad. Por debajo del AGC, el Agua Subsuperficial Subtropical (ASS) llenó las cuencas Delfín, Salsipuedes y Tiburón, mientras que en el sureste se encontró entre 150 y 350 m. El Agua Intermedia del Pacifico no atravesó los umbrales. Se encontró que el ASS enriquece de CID las aguas superficiales de la RGI cuando aumenta su volumen y cuando se mezcla con el AGC por efecto de las mareas. El aporte disminuye hacia el verano, cuando el ASS se hunde al mismo tiempo que el volumen de AGC aumenta. En invierno, el AGC presentó tres tipos de agua asociadas a los procesos de mezcla y en combinación con la presencia de ASS. Se encontró también que en la RGI la relación CID vs temperatura podría aplicarse en futuros estudios para analizar la dinámica del carbono en la RGI, tanto en la superficie mediante imágenes de satélite como en la vertical para simular procesos físicos.
A detailed regional grid of 97 surficial sediment samples is studied for the San Quintín coastal lagoon, which is a shallow embayment located adjacent to a "regionally-rare" intraplate-type basaltic ...terrain known as San Quintín volcanic field. The influence that this unique lithology and other potential sources have on the recent sediment geochemistry is discussed on the basis of geochemical, petrographic and sedimentological results. The sandy silts and silts in the lagoon are enriched in ferromagnesian minerals such as pyroxenes and hornblende, which form up to 6 and 22%, respectively, of the total mineral count in the sand fraction. These relatively immature feldspathic sediments are characterized by the presence of abundant angular plagioclase (25-60%) and absence of lithics. The La-Sc-Th and Cr-Sc-Th discrimination diagrams suggest that mafic ferromagnesian minerals have a significant effect on the geochemical variance of the sediments. The Cr/Th (median=28) and Co/Th (median=59) ratios are similar to those reported for sands derived from basic rocks. A mafic provenance is probably responsible for the statistical association of Fe, Hf, U, Th, Sc, Cr, Ca, Na and the rare earth elements. An association of Fe, organic carbon and total P with the trace elements Sb, Cr, Br, As, Na, Sc and Co indicates that their distribution is mainly controlled by the presence of Fe-rich minerals, such as hornblende, and organic matter throughout Bahía San Quintín and the northernmost Bahía Falsa, beneath aquaculture racks. Low enrichment factors (<1) for Cr, Sb, As and P indicate that anthropogenic contaminant sources derived from agrochemicals are not significant.
We report the first ground-based detection of the water line p-H2O (211-202) at 752.033 GHz in three z < 0.08 ultra-luminous infrared galaxies (ULIRGs): IRAS 06035-7102, IRAS 17207-0014 and IRAS ...09022-3615. Using the Atacama Pathfinder EXperiment (APEX), with its Swedish-ESO PI Instrument for APEX (SEPIA) band-9 receiver, we detect this H2O line with overall signal-to-noise ratios of 8-10 in all three galaxies. Notably, this is the first detection of this line in IRAS 06035-7102. Our new APEX-measured fluxes, between 145 to 705 Jy km s-1, are compared with previous values taken from Herschel SPIRE FTS. We highlight the great capabilities of APEX for resolving the H2O line profiles with high spectral resolutions while also improving by a factor of two the significance of the detection within moderate integration times. While exploring the correlation between the p-H2O(211-202) and the total infrared luminosity, our galaxies are found to follow the trend at the bright end of the local ULIRG's distribution. The p-H2O(211-202) line spectra are compared to the mid-J CO and HCN spectra, and dust continuum previously observed with ALMA. In the complex interacting system IRAS 09022-3615, the profile of the water emission line is offset in velocity with respect to the ALMA CO(J = 4 - 3) emission. For IRAS 17207-0014 and IRAS 06035-7102, the profiles between the water line and the CO lines are spectroscopically aligned. This pilot study demonstrates the feasibility of directly conducting ground-based high-frequency observations of this key water line, opening the possibility of detailed follow-up campaigns to tackle its nature.
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