Barrier hidden

External corrosion can occur under insulation, especially if the weather barrier is not maintained or if the tank is operating at conditions at which condensation is likely. This form of attack is hidden and may be unnoticed for a long time. Inspection holes and plugs should... 

Nuclear Explosion Survival Rule 2 Seek shelter or retreat behind a solid barrier immediately and stay hidden for at least 2 minutes. Note that every fraction of a second out in the open increases exposure to the intense heat, initial radiation, and air blast. 

Staphylococcus aureus is known for its ability to produce a variety of toxins and many disease syndromes. One of the most frequently observed diseases is staphylococcal tonsillitis. These bacteria are frequently present on tonsils of healthy carriers. Patients that are affected by tonsillitis swallow staphylococci hidden in tonsil crypts. However, in this case staphylococci do not cause any gastrointestinal symptoms in the host organism, even if they enter the gastrointestinal tract. The barrier of gastric juice and conditions in a small intestine inhibit the outgrowth of staphylococci and toxin production -gastroenteritis is caused solely by a toxin produced outside the host organism. 

This conclusion is also supported by the fact that, in contrast to ssDNA, the oxidation signal coming from dsDNA is poorly developed at both GC and GC(ox). This is probably attributable to the electroactive A and G residues in dsDNA being inaccessible to the surface, while most bases in denatured DNA can freely interact with the GC(ox) surface. On the other hand, the hydrogen-bonded bases in native DNA are hidden within the double heUx, a serious steric barrier to electron transfer between the purine and the GC(ox). 

The brain is the most mysterious and sacred organ in the body. Hidden behind the blood-brain barrier (BBB) and consequently inaccessible to the majority of substances circulated in the blood, it controls and regulates almost all critical processes within the organism. 

So far the attention has been on the nuclear reorganization barrier. Nevertheless, other important factors previously hidden in the pre-exponential factor (and ultimately in the standard rate constant) have to be considered, namely, the fundamental question of the magnitude of the electronic interaction between electroactive molecules and energy levels in the electrode (i.e., the degree of adiabaticity) and its variation with the tunneling medium (electrode-solution interface), the tunneling distance, and the electrode material. Thus, within the transition-state formalism, the rate constant for electron transfer can be expressed as the product of three factors [39—42] ... 

Terahertz images by themselves are generally not sufficient to identify hidden explosives because of the complicating effects of barrier materials, noise, and potential image... 

Externally, the only difference between this Ex i-isolator (Fig. 6.207) with galvanic isolation and a safety barrier is its increased size. The complex electronics and, of course, the components limiting current and voltage are hidden inside. In this example, a trip amplifier for DIN rail mounting is shown, which is suitable for operating temperature sensors in intrinsically safe circuits. The marking is ... 

Wide applications of (unmodified) peptides as drags are limited by the disadvantages affiliated with their use in biological systems. An unmodified linear peptide is easily degraded by e. g. proteases, it is often too water-soluble to pass the cell membrane and therefore unable to pass the blood-brain barrier and rapidly excreted. In addition, a peptide is a flexible structure of which the bioactive conformation is usually hidden in a population of thousands of other conformers. 

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