The hemoglobin oxidation Bohr effect is larger than the ligation Bohr effect, even when the former is corrected for any ionization of the water molecule bound to the ferric iron of methemoglobin. This residual oxidation Bohr effect is here shown to be solely caused by the influence of the positively charged ferriheme, and is abolished when the oxidized heme binds an anion. This result frees the...

Clavicle fractures account for 2.6% to 4% of all fractures. Surgical stabilization of this type of injury is becoming more common. Anterior inferior plating and superior plating are 2 popular approaches to open reduction and internal fixation. Reports of plate removal have raised concerns about reinjury. The goal of the current study was to determine whether the orientation of screw holes in cl...

BACKGROUND Observational studies are commonly conducted in health research. However, due to their lack of randomization, the estimated associations between the outcome and the exposure can be affected by unmeasured confounding factors. It is important to determine how likely a significant association observed between an outcome variable and a noncausally related exposure may be introduced by re...

The traditional approach to calculating stress distribution in arteries has been to assume (incorrectly) that the unloaded intact artery is stress-free. We consider the unloaded intact artery to have initial (i.e., residual) stresses and study how this aaects the calculated wave speed of the arterial pulse. We use a set of equations that describe, in a simpliied way, the blood ow in arteries an...

FIGURE 1 Echinochloa frumentacea control over three seasons. These trials were conducted under a wide variety of soil and climatic conditions. A randomised complete block designwith four replicationswas used. The trials werela.id out in such a way that each plot could be compared WIth an adjacent control strip. A plot size of 20 m' was used. ~er­ bicides were applied pre-emergence by means of s...

Residual stress present in coupons used for fracture testing will influence the experimental determination of fracture toughness. Triaxial residual stress (e.g., due to welding) can alter both the driving force for fracture and the crack-tip constraint at a specified load, so that the apparent toughness of a coupon depends on the residual stress present. In this paper, we employ a micromechanic...

Original scientific paper The paper deals with the effect of roughness, residual stresses and pitting corrosion on different shot peened (SP) ENAW 7075 aluminium alloy in different states. Suitable residual stress profile increases the applicability and life cycle of mechanical parts, treated by shot peening. Pitting corrosion has a major influence on aging of structural elements made of high s...

in this paper, the effect of autofrettage process parameters on the ultimate pressure that functionally graded spherical vessel can tolerate are investigated. fgm properties and autofrettage pressure are considered as important parameters. assumptions are variation of properties of fgm in radial direction, the residual stress in the absence of bauschinger effect with the operation of variable m...

The bodies of the Solar System exist in a variety of irregular shapes. Studies of those shapes are conducted to infer information about the internal composition, structure, and history of those bodies. However, such inferences require knowing how the composition and structure or history relates to the shape and internal forces. That connection is known only for fluid bodies, where the permissib...