1,720,973 research outputs found
Seizure susceptibility in immature rats with micrencephaly induced by prenatal exposure to methylazoxymethanol acetate
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Monitoring suspended sediment transport in two moutainous river basins: the Carapelle and the Celone (Apulia, Italy)
No full textSediment load quantification is an important task in river basin management, as it provides the order of magnitude of soil loss. Yearly sediment loads were quantified in two river basins of the Apulia region, the Carapelle (506 km(2)) and the Celone river basin (72 km(2)). For the Carapelle river basin, streamflow and suspended sediment concentrations (SSC) were monitored from 2007 to 2011 with an infrared optical probe and suspended sediment load at the yearly basis was quantified by integration of instantaneous flux. For the Celone river, continuous measurements of streamflow and discrete measurements of SSC taken, from 2010 to 2011, in all hydrological conditions (high, normal and low flow) were used to develop sediment rating curves. In particular, different sediment rating curves were developed for the entire dataset and three subsets of data identified based on the hydrological conditions and loads were computed with and without a backtransformation correction factor. At the Celone river gauge, annual specific sediment load ranged from 2.4 t ha(-1) yr(-1) to 6.06 t ha-1 yr(-1). At the Carapelle river gauge, the annual specific sediment load ranged from 0.9 t ha(-1) yr(-1) to 7.45 t ha(-1) yr(-1). The results of the present study show that the hydrological regime is the key factor in sediment transport in the Celone and Carapelle basins and that the duration of the sampled period, and its characteristics (wet or dry) may have a great impact on sediment loads
Long-term effects of early status epilepticus on the acquisition of conditioned avoidance behavior in rats
No full textSoil bioengineering techniques for Mediterranean coastal dune restoration using autochthonous vegetation species
Full text linkCoastal dunes are extremely fragile and threatened ecotones, which play a key environmental role in terms of functional connection between terrestrial and marine ecosystems. To counteract the hydrogeological vulnerability in coastal risk areas, reliance can be made on soil bioengineering techniques, consisting of planting native species in combination with natural inert materials. These interventions involve the use of typical Mediterranean plant species, which are fundamental for increasing soil surface protection as well as for their ecologic function in coastal dune consolidation. Monitoring studies on plant growth parameters are useful to assess the suitability of the different species to be used in soil bioengineering works. Hence, this study aimed to (i) identify some Mediterranean herbaceous and shrubby plant species to be used in coastal interventions, (ii) evaluate different plant propagation methods and short-term growth parameters, and (iii) provide useful insights into field management strategies before and after transplanting.Juniperus phoenicea L., Juniperus macrocarpa Sm., Pistacia lentiscus L., Tamarix africana Poir. and Tamarix gallica L. were the selected shrubs species while Ammophila arenaria (L.) Link, Sporobolus pungens (Schreb.) Kunth., Agropyron junceum (L.) P. Beauv., Eryngium maritimum L., Calystegia soldanella (L.) R. Br., and Pancratium maritimum L. were the selected herbaceous species. As to shrubs, seeds and cuttings proved the best propagation methods with an efficiency of up to 90%. Agamic propagation methods, on the other hand, were the most efficient (80-90%) for the herbaceous species. After transplantation, all the species showed an adaptation period to the new climatic and edaphic conditions. In particular, Pistacia lentiscus L. was found withered with the presence of some radical shoots
Behavioral and electrographic patterns induced by systemic administration of kainic acid in developing rats
No full textIntracortical and intrahippocampal injections of kainic acid in developing rats: an electrographic study.
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