Publications by authors named "N Belaidi"
Article Synopsis
- Research on the evolution of phenotypic traits during the transition to novel environments, particularly groundwater colonization by surface organisms, is limited due to challenges in studying diverse species.
- The team has developed the World Asellidae database (WAD), which provides extensive data on freshwater isopods, including species occurrences, specimens, and genetic information, to aid in comparative evolutionary studies.
- Through a phylogenetic analysis involving 34 species pairs, evidence is presented that male body size decreases when transitioning to groundwater habitats, suggesting evolutionary pressures from competition for females may drive this change.
An elevated nitrogen concentration in water is one of the main problems affecting water quality in Mediterranean rivers. The objectives of this study were (1) to evaluate the contribution of the Tafna catchment to the nitrate load entering the Mediterranean Sea, (2) to quantify the impact of agriculture on the nitrate concentration in water bodies, (3) to evaluate nitrate loads entering groundwater, and (4) to quantify the role of reservoirs in nitrate retention. A SWAT model was applied during the period 2003 to 2011.
View Article and Find Full Text PDFMetals in river sediments from a semi-arid Mediterranean basin were investigated from upstream to downstream during contrasting hydrological conditions in 2014 and 2015. The level and origin of the contamination were evaluated using several geochemical and isotopic indicators. Elements were grouped by their level of contamination: high (Pb > Cd > Zn > Cu) and low (Al, Fe, Cr, Co, Ni).
View Article and Find Full Text PDFBackground: Endogenous (heterophile, human anti-animal …) antibodies are a known cause of interference in immunoassays.
Case Report: A patient with hypercalcemia and low PTH levels was investigated. The serum 25OH vitamin D (25OHD) concentration was above the analytical range of the automated analyser (>150ng/mL) but serum dilutions were not linear.