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Additionally, OER may be presented in terms of hyperoxic environments and/or with altered oxygen baseline, complicating the significance of this value. O E R = R a d i a t i o n d o s e i n h y p o x i a R a d i a t i o n d o s e i n a i r {\displaystyle OER={\frac {Radiation\,dose\,in\,hypoxia}{Radiation\,dose\,in\,air}}}
This figure illustrates the typical change in the relative radiosensitivity for a biological effect such as cell death when exposed to radiations of low ionizing density (e.g. x-rays). The hyperbolic relationship shown has a maximum OER of 2.70 for 100% oxygen (at 760 mmHg), with a half-range OER value at 4.2 mmHg or 0.55% of oxygen.
The main character of much of the series, Agent Philip Graves is a mysterious and enigmatic man who presents wronged individuals with the opportunity for revenge without consequences. He is first introduced in the eight-page story in the 1998 Vertigo Winter special "Silencer Night", before appearing in 100 Bullets issue #1. Graves is a man in ...
Bullet parts: 1 metal jacket, 2 lead core, 3 steel penetrator. Terminal ballistics is a sub-field of ballistics concerned with the behavior and effects of a projectile when it hits and transfers its energy to a target. Bullet design (as well as the velocity of impact) largely determines the effectiveness of penetration. [1]
“Very small,” she said, pointing to the slug, “like a .22.” As so many other patients do, the patient asked the trauma surgeons if they were going to take the bullet out, and the surgeons explained that they fix what the bullet injures, they don’t fix the bullet. They left the wound open to prevent infection and put a dressing on it.
To support interoperability, OER Commons is an experimental node in the Learning Registry, a joint US Department of Education and US Department of Defense initiative to support educational content and platform interoperability. [9] The OER Commons contains custom curated resource collections, or microsites.
New OER can be assembled or simply reused or repurposed from existing open resources. This is a primary strength of OER and, as such, can produce major cost savings. OER need not be created from scratch. On the other hand, there are some costs in the assembly and adaptation process. And some OER must be created and produced originally at some time.
Biomagnetism is usually related to the presence of biogenic crystals of magnetite, which occur widely in organisms. [53] These organisms range from magnetotactic bacteria (e.g., Magnetospirillum magnetotacticum ) to animals, including humans, where magnetite crystals (and other magnetically sensitive compounds) are found in different organs ...