101,943 research outputs found
PlexinA4-Semaphorin3A mediated crosstalk between main cortical interneuron classes is required for superficial interneurons lamination
No full textWe demonstrate that the two main classes of interneurons (INs) communicate during cortical development. MGE-derived INs first colonize deep layers and serve as guidepost for later-arriving HTR3A+ INs. This process relies on PlexinA4 and Semaphorin3A signaling and is critical for the proper distribution of inhibitory neurons across layers.
Data here is files containing manual counting of neurons in the mouse somatosensory cortex at different ages (details are included in each of them). Data in 3 contains area measurements of growth cones after embryonic dissociated cell cultures. Data in 4 and 6 contains dynamic tracking of cells after time-lapse imaging. For each excel file, an associated prism file contains related statistical analyses
PlexinA4-Semaphorin3A mediated crosstalk between main cortical interneuron classes is required for superficial interneurons lamination
No full textWe demonstrate that the two main classes of interneurons (INs) communicate during cortical development. MGE-derived INs first colonize deep layers and serve as guidepost for later-arriving HTR3A+ INs. This process relies on PlexinA4 and Semaphorin3A signaling and is critical for the proper distribution of inhibitory neurons across layers.
Data here is files containing manual counting of neurons in the mouse somatosensory cortex at different ages (details are included in each of them). Data in 3 contains area measurements of growth cones after embryonic dissociated cell cultures. Data in 4 and 6 contains dynamic tracking of cells after time-lapse imaging. For each excel file, an associated prism file contains related statistical analyses
Predictors of carotid clamping intolerance during endarterectomy that would be wise to apply to stenting procedures
No full textRecupero di reattivi coagulanti da fanghi di chiarificazione delle acque naturali : processi basati su scambio ionico
No full textSalt contamination of Apulian aquifers: spatial and time trend
No full textThe quality of groundwater of Apulian carbonate aquifers is severely affected by salt contamination due to seawater intrusion. Due the scarcity of surface water resources, the characterization of groundwater quality degradation risks and of spatial and temporal trend of degradation are particularly important in the region.
To pursue these results considering the risk of salt contamination due to seawater intrusion, a simple salinity threshold approach, based on the determination of a single value dividing fresh groundwater from seawater contaminated groundwater, is proposed for Apulian groundwater. The threshold can be considered equal to 0.5 g/l for the Apulian karstic and costal aquifers. The spatial trend of 0.5 g/l salinity contour line in the period 1981-2003 is characterized. Along the areas close to the Adriatic and Ionian shoreline groundwater saline contamination is resulted to be a long-standing phenomenon. Only the Murgia interior and a restricted strip in the middle of the Salentine Peninsula have not been contaminated so far.
The salt contamination is also characterized considering 17 time series of monthly chloride concentration, a parameter which can highlight the seawater contamination effects. Data from 1968 to 2001 are considered and compared with rainfall and temperature time series. The increased saline contamination is closely related to droughty years and to the increasing discharge by wells. Before 1980, no significant concentration increase was reported in the majority of wells. The phenomenon became apparent in the late 80s after some dry years that result in a reduced recharge of aquifers and increased groundwater withdrawals. Time series of mean annual values of specific electrical conductivity are also discussed.
It is confirmed the existence of areas considerable protected from the seawater intrusion, of areas exhibited in serious manner to the salt pollution and, finally, of an immense portion of territory in which the quality of the groundwater depends exclusively from our capacity to manage the water resources.PublishedCagliariope
Salt contamination of Apulian aquifers: spatial and time trend
No full textThe quality of groundwater of Apulian carbonate aquifers is severely affected by salt contamination due to seawater intrusion. Due the scarcity of surface water resources, the characterization of groundwater quality degradation risks and of spatial and temporal trend of degradation are particularly important in the region.
To pursue these results considering the risk of salt contamination due to seawater intrusion, a simple salinity threshold approach, based on the determination of a single value dividing fresh groundwater from seawater contaminated groundwater, is proposed for Apulian groundwater. The threshold can be considered equal to 0.5 g/l for the Apulian karstic and costal aquifers. The spatial trend of 0.5 g/l salinity contour line in the period 1981-2003 is characterized. Along the areas close to the Adriatic and Ionian shoreline groundwater saline contamination is resulted to be a long-standing phenomenon. Only the Murgia interior and a restricted strip in the middle of the Salentine Peninsula have not been contaminated so far.
The salt contamination is also characterized considering 17 time series of monthly chloride concentration, a parameter which can highlight the seawater contamination effects. Data from 1968 to 2001 are considered and compared with rainfall and temperature time series. The increased saline contamination is closely related to droughty years and to the increasing discharge by wells. Before 1980, no significant concentration increase was reported in the majority of wells. The phenomenon became apparent in the late 80s after some dry years that result in a reduced recharge of aquifers and increased groundwater withdrawals. Time series of mean annual values of specific electrical conductivity are also discussed.
It is confirmed the existence of areas considerable protected from the seawater intrusion, of areas exhibited in serious manner to the salt pollution and, finally, of an immense portion of territory in which the quality of the groundwater depends exclusively from our capacity to manage the water resources.PublishedCagliariope
Procedimento per il recupero del principio coagulante dai fanghi di chiarificazione delle acque naturali e reflue
No full text"Sindrome di Goldenar. Caso clinico"
No full textLa sindrome di Goldenhar è una displasia oculoauricolovertebrale, dovuta a mancato o erroneo sviluppo del primo e secondo arco branchiale, che va distinta dalla Sindrome di Treacher-Collins e dalla microsomia emifacciale. E' caratterizzata da anomalie orbitarie, fusione delle vertebre cervicali, ipoplasia mascellare e malformazioni a carico dell'orecchio esterno e medio.
Gli Autori riportano il caso di un bambino, maschio di 8 anni, che giungeva alla loro osservazione per una ipoacusia di tipo trasmissivo dell'orecchio sinistro. Il paziente è stato sottoposto in anestesia generale a timpanotomia esplorativa seguita da stapedotomia.
L'opportunità di eseguire un trattamento chirurgico delle malformazioni dell'orecchio medio nei pazienti affetti da sindrome di Goldenhar si rende necessaria per ripristinare la capacità uditiva binaurale e consentire un migliore apprendimento del linguaggio in età scolare
Attività di ricerca dell'IRSA-CNR nel settore del recupero del cromo da reflui conciari
No full textKarstic aquifer vulnerability assessment methods and results at a test site (Apulia, southern Italy)
No full textKarstic aquifers are well known for their vulnerability to groundwater contamination. This is due to characteristics such as thin soils and point recharge in dolines, shafts, and swallow holes. In karstic areas, groundwater is often the only freshwater source. This is the case of the Apulia region (south-eastern Italy), where a large and deep carbonate aquifer, affected by karstic and fracturing phenomena, is located. Several methods (GOD, DRASTIC, SINTACS, EPIK, PI, and COP) for the assessment of the intrinsic vulnerability (<i>Iv</i>) were selected and applied to an Apulian test site, for which a complete data set was set up. The intrinsic vulnerability maps, produced using a GIS approach, show vulnerability from low to very high. The maximum vulnerability is always due to karstic features. A comparison approach of the maps is proposed. <br><br> The advantages and disadvantages of each method are discussed. In general terms, three groups can be distinguished. The GOD method is useful for mapping large areas with high vulnerability contrasts. DRASTIC and SINTACS are "any-type aquifer" methods that have some limitations in applications to karstic aquifers, especially in the case of DRASTIC. EPIK, PI, and COP, which were designed to be applied to carbonate or karstic aquifers, supply affordable results, highly coherent with karstic and hydrogeological features, and reliable procedures, especially in the case of PI and COP. The latter appears simpler to apply and more flexible in considering the role of climatic parameters. If <i>Iv</i> of each method is considered, the highest variability is observed in cells in the neighbourhood of karstic features. In these spatial domains, additional efforts to define more reliable and global methods are required
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