Crystalline ZIF-8 (C-ZIF-8) and amorphous ZIF-8 (Am-ZIF-8) were prepared and investigated to control the germination of Striga hermonthica, a root parasitic plant, which threatens cereal crops production particularly in sub-Saharan Africa. We have demonstrated that Am-ZIF-8 shows a better performance than C-ZIF-8 in inhibiting Striga seeds germination. This efficient performance of Am-ZIF-8 materials can be attributed to the incomplete deprotonation of 2 methylimidazole (2MIM) during amorphization, leading to the presence of unsaturated Zn-N coordination with the uncoordinated -NH groups available to undergo hydrogen bonding with the strigolactone analog GR24 forming a more stable Am-ZIF-8⋅⋅⋅GR24 hydrogen bonded network.
View Article and Find Full Text PDFBackground: Mammographic breast density (MBD), a well-established factor linked to breast cancer, is the focus of this preliminary report among women across multiple centers in Riyadh. The study aims to identify risk factors associated with high breast density.
Methods: MBD was assessed at three hospitals in Riyadh, Saudi Arabia, using the American College of Radiology (ACR) categories: A (almost entirely fatty), B (scattered areas of fibroglandular density), C (heterogeneously dense), and D (extremely dense).
Background: Postpartum depression is a frequent mental health issue that affects many women due to this stressful phase. The aim of the study is to gain insight into the coping strategies employed by postpartum women and to explore how these strategies are influenced by various demographic and maternity factors.
Methods: The study adopted a quantitative, cross-sectional design.
Objectives: The burden of postpartum depression (PPD) is significant because it remains unrecognized, and it not only affects the mother adversely but also has a negative consequence on the family life and the development of the infant. The aim of the study was to measure the prevalence of PPD and identify the risk factors of PPD among mothers attending the well-baby clinic of six Primary Health Care centers in Abha city, Southwest Saudi Arabia.
Materials And Methods: A total of 228 Saudi women having a child aged between two weeks to one year were recruited in the study by using a consecutive sampling technique.