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Since the early 1980s, several regions of Morocco have experienced alternating series of wet and dry periods related to climate change, with significant consequences for the country’s economy. This study aims to map flood hazards by using a hydraulic modeling approach, with a specific focus on the Oued (river) Zaouiat Sidi Hamza passing through Zaouiat Sidi Hamza township belonging to the High Ziz watershed (province of Midelt, region of Drâa-Tafilalet, Morocco). Hydraulic modeling and flood simulation were carried out followed by mapping of the flood hazard. The Oued Zaouiat Sidi Hamza River can cause torrential flooding issues, particularly during periods of heavy storms, impacting agricultural land and certain buildings on both river banks. All the cultivated areas developed alongside the river are at risk of flooding. Moreover, undermining and erosion of the river’s banks lead to rising high-water levels and flooding agricultural terraces. The use of geographic information systems and hydraulic modeling tools is essential to gain a deeper understanding of this situation. Also, the mapping of lineaments and fractures in the study area, carried out by satellite image processing, helped to quantify the directional influence of these lineaments on the flow of the hydrographic network, on the orientation of the circulation of surface water, and on the storage of groundwater. According to this study, the most vulnerable areas to flooding and erosion are those that receive the most water in the basin and have steep slopes. Decision-makers can use the results to produce development plans tailored to combat these risks and raise awareness among the population concerned, improving water resource evaluation and forecasting, as well as improving agricultural production.

Coordination compounds Pd(L1)Cl$_{2}$, Pd(L2)Cl$_{2}$, and Pd(L3)Cl$_{2}$ have been synthesized from optically pure $\alpha $-amino-oxime ligands L1–L3 based on $(R)$-limonene. Structures of the new palladium complexes are characterized and described by NMR spectroscopy and X-rays. These $\alpha $-amino-oxime ligands were then evaluated in the palladium-catalysed allylation of 1,3-dioxo compounds.

In the present work, C and B-sites modified structured CCTO composition with the nominal formula CaCu2.9Ni0.1Ti4−xCoxO12 (x = 0.1, 0.2 and 0.3) were prepared by solid-state reaction. XRD analysis confirmed the formation of single-phase material in samples sintered at 1100 °C for 12 h and 24 h. The effects of Nickel (Ni) and Cobalt (Co) were investigated thoroughly by scanning electron microscopy (SEM), Raman spectroscopy and Impedance spectroscopy. SEM micrographs of co-doped samples noted (CCTO–Ni–Co) revealed amazing morphological change. Pure CCTO exhibits regular polyhedric grains while leaf grains occur in CCTO–Ni–Co particularly when the content of Co increases to 0.3. EDX studies confirm the rich phase of copper oxide at grain boundaries. The complex dielectric and impedance properties of dielectric compound CaCu3Ti4O12 co-doped by Ni and Co as a function of frequency were interpreted to understand the grain and grain boundary contributions to its dielectric response. The frequency-dependent dielectric permittivity data shows a sharp increase in permittivity by 0.2 and 0.3 Co doping content sintered at 1100 °C for 12 h accompanied with a frequency-dependent peak in tanδ. However, the dielectric response associated with these compositions drops considerably as the sintered time reaches 24 h. Contrary, the sample doped with 0.1 content Co show clear ameliorate on the dielectric permittivity. So, it was necessary to consider not only the electrical characterization, but also the microstructure in a discussion of the dielectric properties of the estimate CaCu2.9Ni0.1Ti4–xCoxO12 composition. [ABSTRACT FROM AUTHOR]

Soil erosion induced by water constitutes a challenge with far-reaching environmental and socioeconomic implications across diverse global regions. This phenomenon detrimentally affects agricultural yield, accelerates dam siltation, and amplifies the susceptibility to flooding. Consequently, a prerequisite for any land development initiative is the meticulous identification and mapping of areas prone to erosion. The Revised Universal Soil Loss Equation (RUSLE) is the predominant method for evaluating soil erosion, encompassing climate erosivity, topography, vegetation cover, soil erodibility, and anti-erosion interventions. This study integrated RUSLE with Geographic Information Systems (GIS) to delineate soil losses within the Rmel watershed in northwestern Morocco. The outcomes unveiled an average annual erosion rate of approximately 15.8 tons per hectare, a comparatively modest figure with adjacent regions. Merely 9% of the watershed exhibits vulnerability to soil erosion, surpassing the threshold of 15 tons per hectare annually. These vulnerable areas are predominantly influenced by anthropogenic activities in the basin's central region and adverse climatic conditions downstream. The insights from this research can inform decision-makers in developing strategic action plans and policies for effective soil erosion management in the region. Additionally, the integration of magnetic susceptibility could serve as a complementary tool to enhance the robustness of this analysis. [ABSTRACT FROM AUTHOR]