Signal reception

To be brief, I will confine myself to giving some information on Nimbus 4, once more deploring the abuse of enigmatic initials. 

Four independent systems are assigned to the various detection instruments. 

Experiments performed on board Nimbus meteorological satellites 

Parameters and equipment Nimbus A (Nimbus 1) Nimbus C (Nimbus 2) Nimbus B (Nimbus 3) Nimbus D (Nimbus 4) etc. 

IRIS (infrared interferometer-spectrometer). Thermal profiles of 5-20 urn 8-20 jum 

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A cell subjected to a stress of any kind can potentially exhibit a wide range of responses. Severe stress may lead to cell death and, ultimately, to cell lysis imposition of less severe conditions may result in a metabolically perturbed system, which may either revert to its initial state or adapt in some way to the imposed conditions. Figure 10 shows a hypothetical scheme, presented by Prokop and Bajpai [12], for the signal-response cascade associated with hydrodynamic shear stress. The signal reception/transduction mechanisms are, as yet, poorly understood. While Fig. 10 can be applied to any biological system, Namdev and... 

SIGNAL RECEPTION AND ANALYSIS TEMPORAL ANALYSIS OF CHEMICAL SIGNALS TO DETERMINE SPATIAL GRADIENTS... 

Fig. 5.14. Structure and activation of the heterotrimeric G-proteins. Reception of a signal by the receptor activates the G-protein, which leads to exchange of bound GDP for GTP at the a-sub-unit and to dissociation of the pycomplex. Further transmission of the signal may take place via Ga-GTP or via the Py-complex, which interact with corresponding effector molecnles. The a- and y-subunits are associated with the cell membrane via lipid anchors. Signal reception and signal transmission of the heterotrimeric G-proteins take place in close association with the cell membrane. This point is only partially shown in the fignre.

Selectively permeable to polar substances. Includes membrane proteins that function in transport, I in signal reception, / h and as enzymes. 

Biological membranes define cellular boundaries, divide cells into discrete compartments, organize complex reaction sequences, and act in signal reception and energy transformations. 

Some olfactory neurons may use a second transduction mechanism. They have receptors coupled through G proteins to PLC rather than to adenylyl cyclase. Signal reception in these cells triggers production of IP3 (Fig. 12-19), which opens IP3-gated Ca2+ channels in the ciliary membrane. Influx of Ca2+ then depolarizes the ciliary membrane and generates a receptor potential or regulates Ca2+-dependent enzymes in the olfactory pathway. 

The conference took place in a moment of extraordinary expansion of general interest for astrophysical problems due to the first steps made in new observational techniques such as radio signal reception and observations from space vehicles. 

As alluded to above, because the eventual consequence of tegumental signal reception and transduction will likely be the triggering of molecular or biochemical pathways in non-tegumentary cells or tissues, the... 

Unlike cocaine and amphetamine, however, MPH does not cause feelings of pleasure in the brains of individuals with ADHD. However, when healthy people unaffected by ADHD take methylphenidate illicitly, they get, at least initially, a sharp signal reception that the brain interprets as pleasure. Unfortunately, people without ADHD soon develop a tolerance to the drug and need increasing amounts of the drug to achieve the same effect, often leading to methylphenidate abuse. 

Basheer R, Porkka-Heiskanen T, Strecker RE, Thakkar MM, McCarley RW. Adenosine as a biological signal mediating sleepiness following prolonged wakefulness. Biol Signals Recept 2000 9 319-327. 

Skene DJ, Lockley SW, Arendt J (1999) Melatonin in circadian sleep disorders in the blind. Biol Signals Recept 8 90-95... 

Reiter RJ, Tan D-X, Manchester LC, Karbownik MB, Calvo JR (2000) Biol Signal Recept 9 160... 

Barrett P, Morris M, Choi WS, Ross A, Morgan PJ (1999) Biol Signal Recept 8 6... 

The fundamental cellular component of the nervous system, the neuron, has long, branching, cyllndrlc processes (dendrites and axon) that extend from the cell body. Dendrites are modified for signal reception and transduction and form extensive networks that permit Interneuronal communication, coordination, and integration of nervous-system function. The axon typically is a long extension of Che neuron specialized for transmission of electric signals and, at Its distal end, for chemical communication of Information to other neurons or to muscle at sites termed synapses and neuromuscular junctions, respectively. 

Michel WC (1999) Cyclic nucleotide-gated channel activation is not required for activity-dependent labeling of zebrafish olfactory receptor neurons by amino adds. Biol Signals Recept 8 338-347 Michel WC, Derbidge DS (1997) Evidence of distinct amino acid and bile salt receptors in the olfactory system of the zebrafish, Danio rerio. Brain Res 764 179-187 Michel WC, Sanderson MJ, Olson JK, Lipschitz DL (2003) Evidence of a novel transduction pathway mediating detection of polyamines by the zebrafish olfactory system. J Exp Biiol 206 1697-1706... 

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