Flocculation is a key process for controlling the fate and transport of suspended particulate matter (SPM) in water environments and has received considerable attention in the field of water science (e.g., oceanography, limnology, and hydrology), remaining an active area of research. The research on flocculation has been conducted to elucidate the SPM dynamics and to diagnose various environmental issues. The flocculation, sedimentation, and transportation of SPM are closely linked to the compositional and structural properties of flocs. In fact, flocs are highly heterogeneous in terms of composition. However, the lack of comprehensive research on floc composition and structure has led to misconceptions regarding the temporal and spatial dynamics of SPM. This review summarizes the current understanding of the heterogeneous composition of flocs (e.g., minerals, organic matter, metals, microplastic, engineered nanoparticles) and its effect on their structure and on their fate and transport within aquatic environments. Furthermore, the effects of human activities (e.g., pollutant discharge, construction) on floc composition are discussed.
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RBINS Staff Publications 2022
The only four terracotta plaques That were found in Urkesh, dating back to the second millennium BC, offer a style variation of the nude woman motif that was extremely popular in Mesopotamia. The main objective of this article is to present these previously unpublished terracotta plaques from Urkesh. The artifacts in question are dealt with from an archaeological point of view, where the descriptive information and archaeological context related to them is provided, before discussing their proposed function that relies to some extent on their imagery and what it represents. The analysis of these plaques, which conform with the domestic nature of other plaques found all over Mesopotamian sites, and the sexualization of woman’s depiction on them and how it relates to some extent to the change in the manufacturing techniques from the freehand molded figurines to the mass production of a mold made plaques, and the interpretation of their function as objects of a domestic nature, are presented in this article in effort to highlight what might be a new proposed function for the plaques of Urkesh, in the light of their archaeological context that might be related to burials
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ANTHROPOLOGICA ET PREHISTORICA
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