In a cross-sectional survey, we investigated exposure to and the presence of factors associated with anaemia, such as socioeconomic conditions, dietary habits, intestinal parasitic infections and lead among 355 young male workers [7-19 years of age]employed in private workshops. Of the total study sample, 44.5% [158 participants]were found to be anaemic. The major risk factors for anaemia were multiple parasitic infection, high intensity of parasitic [Ascaris lumbricoides]infection and drinking tea soon after a meal. A significantly lower prevalence of anaemia was noted after Ramadan; it appeared to be the main factor associated with the presence or absence of anaemia and warrants further attention.

Lipid composition and antioxidant activity have been carried out in order to valorize the composition of olive mill wastewater extracts with different solvents (supercritical carbon dioxide, n-hexane, dichloromethane and ethanol). The antioxidant activity was evaluated using ABTS (2,2’-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid)) and DPPH (2,2-diphenyl-1-picrylhydrazyl) tests. The total phenolics and flavonoid contents were, also, determined. The chemical composition of the extracted oil was established, respectively, by gas chromatography–flame ionization detector and high-performance liquid chromatography methods. The results showed that the oleic acid and equivalent carbon number of forty-eight were the major compounds of the analyzed oils. Residual olive mill wastewater from the Sousse region displayed the highest DPPH radical-scavenging activity (31.10 ± 0.10 μg/mL). The chemical analysis of extracts of OMWs showed that the n-hexane fraction contained an abundance of oleic acid (61.62%) and an equivalent carbon number of forty-eight (53.14%). The best antioxidant activity was determined for the ethanol fraction (14.5 μg/mL). The final results showed a significant difference and variations in polar and apolar components. Moreover, n-hexane extracts showed high percentages of Monounsaturated fatty acids (MUFA) with 64% of OMWs oil composition and the dichloromethane extracts contained the largest amount of flavonoids (160.30 ± 1.70 mg EQ/g DM).

The doctrine of Sustainability is known to be a holistic approach and there is an increased recognition that Sustainable Development Goals (SDGs) are linked to one another. Within less than two decades, the present pandemic (COVID19) is the third emerged highly pathogenic and deadly human coronaviruses. Hence, risk of emerging infectious diseases (EIDs) is a key component of the sustainable development approach.  In order to determine knowledge, awareness and attitude, an online questionnaire-based survey was conducted in a total of 114 members of Saudi Arabian’s staff. Results about knowledge and awareness varied between 98.2 % and 38.59%. About 77.21% (Mean value) of the participants are well awarded about the subject of the study. The constant collation of the showed that the majorities of the correlation between variables were very strong (20.87%) or strong (38.46%). Synthetically, themes such as human impact on the environment, human health and global stability, SDGs and pandemics, human susceptibility for diseases and uses of drugs were found to be interdepend in the perception of the academic staff in the Saudi Arabian universities. It is suggested that there is a need to introduce time-oriented policy, and implement awareness plans in the country for the future generation.