Regions creating

Typical photodiode detectors consist of a p layer which is made of an electron deficient material an n layer which is electron abundant and a depletion region, the p-n junction, located between the two layers. At equilibrium, when no light or current is applied to the system, the p-n junction is in electrostatic equilibrium and the alignment of electrons and electron holes on the two sides of thejunction region creates a contact potential voltage. As incident light strikes the surface of the diode, the... 

The ionization of focal volume, or formation of plasma, is expected to alter the usual photochemical material modihcation pathway, as has been recently demonstrated in photopolymerization of SU-8 resist by femtosecond pulses [57]. In addition, nanometric-sized plasma regions created by the ionization, e.g., at defect sites, have spatio-temporal dynamics of their own. Recently, a model of nanosheet formation from plasma nanospheres in glass has been proposed [60]. Similar conditions are expected in polymers as well. Let us discuss here held enhancement by a metalhc nanoparticle (similar arguments are also valid for surfaces containing nanometric features). 

Unlike the double-stranded nature of DNA, RNA molecules usually occur as single strands. This does not mean they are unable to base-pair as DNA can. Complementary regions within an RNA molecule often base-pair and form complex tertiary structures, even approaching the three-dimensional nature of proteins. Some RNA molecules, such as transfer RNA (tRNA) possess several helical areas and loops as the strand interacts with itself in complementary sections. Other hybrid molecules such as the enzyme RNase P contain protein and RNA portions. The RNA part is highly complex with many circles, loops, and helical regions creating a convoluted structure. 

Figure 7.4 Optical images of transport regions created in full thickness pig skin using 0.84 W/ cm2 low-frequency ultrasound as visualized with sulforhodamine B. 20 kHz for 6 min (left), 37 kHz for 9 min (middle), and 59 kHz for 14 min (right). Image area is 1.8 cm 2. Reprinted with kind permission from Springer Science + Business Media, from Ref. 27. Copyright 2001 Springer.

The light absorbed first by the substrate (the s-region) creates there electronic excitations described by the r density operator. They in turn create a local electric field at the adsorbate (or p-) region, where the states I = (g, e) are coupled by an SCF potential Gpjj(x) = p t)sin u>ot)Du x), where Du is a transition dipole and p is the envelope of the effective electric held in the p-region when the applied light pulse has frequency wq, as previously published. [30]... 

Splice site and missense mutations in non-coding and coding regions create defective receptors (121,122)... 

Two common polymorphisms (Argl6Gly Gln27Glu) and one rare polymorphism (Thrl64Ile) in the coding region create receptors whose abundance and function are altered in persons homozygous for the polymorphism (123,124)... 

Smooth muscles derive their name from their appearance when viewed in polarized light microscopy in contrast to cardiac and skeletal muscles, which have striations (appearanee of parallel bands or lines), smooth muscle is unstriated. Striations result from the pattern of the myofilaments, actin and myosin, which line the myofibrils within each muscle cell. When many myofilaments align along the length of a muscle cell, light and dark regions create the striated appearance. This microscopic view of muscle reveals some hint of how muscles alter their shape to induce movement. Because muscle cells tend to be elongated, they are often called muscle fibers. Muscle cells are distinct from other cells in the body in shape, protein composition, and in the fact that they are multi-nucleated (have more than one nucleus per cell). 

Planetary nebulae (PNs) are essentially H II regions created by the ionization of a red giant envelope by the exposed hot stellar core, so spectroscopy of a PN provides... 

B. While the exact mechanism is not known, excess cortisol over long periods of time mobilizes lipids and redirects fat deposition away from the peripheral regions to the truncal region creating a buffalo hump appearance between the shoulders and a moon face. ... 

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