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The resonant frequencies and torsional sensitivities of an atomic force microscope (AFM) with assembled cantilever probe (ACP) are studied. This ACP comprises a horizontal cantilever, a vertical extension and two tips located at the free ends of the cantilever and the extension which makes the AFM capable of simultaneous topography at top-surface and sidewalls of microstructures especially microgears which consequently leads to a time-saving swift scanning process. In this work, the effects of the sample surface contact stiffness and the geometrical parameters such as the ratio of the vertical extension length to the horizontal cantilever length and the distance of the vertical extension from clamped end of the horizontal cantilever on torsional resonant frequencies and sensitivities are assessed. These geometrical effects are illustrated in some figures. The results show that the low-order vibration modes are more sensitive for low values of the contact stiffness but the situation is reversed for high values.

The resonant frequencies and flexural sensitivities of an atomic force microscope (AFM) assembled cantilever probe which comprises a horizontal cantilever, a vertical extension and two tips located at the free ends of the cantilever and the extension are studied. This probe makes the AFM capable of simultaneous topography at top-surface and sidewalls of microstructures especially microgears which leads to a time-saving swift scanning process. In this work, the effects of the sample surface contact stiffness and the geometrical parameters such as the ratio of the vertical extension length to the horizontal cantilever length and the distance of the vertical extension from clamped end of the horizontal cantilever on the resonant frequencies and flexural sensitivities are assessed. These geometrical effects are illustrated in some figures. The results show that the low-order vibration modes are more sensitive for low values of the contact stiffness but the situation is reversed for high values.

Background: Functional social support (FSS) has been shown to be positively associated with better cognitive function, especially memory, in cross-sectional and longitudinal studies. To better understand this complex association, researchers should consider the impact of additional factors that affect both FSS and memory. Therefore, we conducted a systematic review to examine whether one such factor, marital status or related variables (e.g., FSS from spouses compared to FSS from relatives or friends), affects (e.g., confounds or modifies) the association between FSS and memory in middle-aged and older adults. Methods: We searched PubMed, PsycINFO, and Scopus from database inception to June 2022. Eligible articles examined the association between FSS and memory, and included marital status or related variables in the analysis. Data were synthesized narratively using the Synthesis without meta-analysis (SWiM) guidelines and risk of bias was assessed using the Newcastle-Ottawa Scale (NOS). Results: Four articles were included in the narrative synthesis. All four articles had a low risk of bias. Overall findings suggested some positive associations between FSS from a spouse/partner and memory; however, effect sizes were small and similar to other sources of support, including children, relatives, and friends. Conclusions: Our review is the first attempt to synthesize the literature on this topic. Despite theoretical support for examining the impact of marital status or related variables on the association between FSS and memory, published studies explored this issue secondarily to other research questions.