The two principal contributors to the Hubble tension problem are predictions of baryonic acoustic oscillation model and H0 parameter fit “Tip Red Giant Branch” collaboration. In this paper, we show that former is neither necessary nor possible latter yields a value in agreement with supernovae results when adjustments made for errors peculiar velocity used isolate recession velocities galaxies....

The mechanical properties of the living cell are intimately related to cell signaling biology through cytoskeletal tension. The tension borne by the cytoskeleton (CSK) is in part generated internally by the actomyosin machinery and externally by stretch. Here we studied how cytoskeletal tension is modified during stretch and the tensional changes undergone by the sites of cell-matrix interactio...

This paper presents structural evidence of extensional activity in Central Alborz during Mesozoic. The structural evidence of homogenous early stage stretching such as layer-parallel to oblique boudinage of Permian and Triassic rocks in various portions of the study area accompanied by extensional-fibrous fractures were followed with more advanced extensional features. These extensional structu...

This paper discusses tension-compression asymmetry properties of Ogden hyperelastic formulations. It is shown that if all negative or all positive Ogden coefficients are used, tension-compression asymmetry occurs the degree of which cannot be separately controlled from the degree of non-linearity. A simple hybrid form is therefore proposed providing separate control over the tension-compression...

Cables are slender structures with a complex geometry, that can undergo large deformations during their installation or in dynamic environments. In combination inner structure they pose challenging problem for finite element simulations. this article simplified approach is presented to model cables by using an effective material and homogeneous cross-section, which anisotropic the elastic inela...

in this research, the effect of tension wood formation in populus nigra on its anatomical characteristics was studied. vessel element and ray frequency (n/mm²), vessel diameter and ray dimensions were measured in both normal and tension wood. furthermore, the formation of gelatinous layer (g-layer) in the fibers of tension wood was studied. the results showed that the vessel proportion and diam...

BACKGROUND Primary and tension-free closure of a flap is often required after particular surgical procedures (e.g., guided bone regeneration). Other times, flap advancement may be desired for situations such as root coverage. METHODS The literature was searched for articles that addressed techniques, limitations, and complications associated with flap advancement. These articles were used as ...

Failure to correctly tension grafts may overconstrain or underconstrain the knee, potentially predisposing the patient to deteriorating clinical and/or radiographic results over time. Knee ligament reconstruction requires a fundamental understanding of native anatomy, ligament biomechanics, and principles of graft tensioning. A successful strategy for graft tensioning takes into account the spe...