Facilitated mechanisms

Hair Removers. Hair removers are designed to remove hair from the skin surface without cutting ia order to avoid uadesirable stubble. Cosmetic products have beea developed for chemical destmctioa of hair, that is, depilatioa, and for facilitating mechanical hair removal, that is, epilation. 

Flame Arrester Housing That portion of flame arrester whose principal function is to provide a suitable enclosure for the flame arrester element, and to facilitate mechanical connection to other systems. 

Facilitate mechanical ventilation ° Decrease oxygen consumption... 

Anandamide is inactivated in two steps, first by transport inside the cell and subsequently by intracellular enzymatic hydrolysis. The transport of anandamide inside the cell is a carrier-mediated activity, having been shown to be a saturable, time- and temperature-dependent process that involves some protein with high affinity and specificity for anandamide (Beltramo, 1997). This transport process, unlike that of classical neurotransmitters, is Na+-independent and driven only by the concentration gradient of anandamide (Piomelli, 1998). Although the anandamide transporter protein has not been cloned yet, its well characterized activity is known to be inhibited by specific transporter inhibitors. Reuptake of 2-AG is probably mediated by the same facilitating mechanism (Di Marzo, 1999a,b Piomelli, 1999). 

As demonstrated above, the uptake of [1-C at the apical membrane of differentiated Caco-2 cells occurs via a saturable, facilitated mechanism and is inhibited by Ezetimibe, a clinically used inhibitor of cholesterol absorption. Carotenoids secreted at the basolateral membrane were associated... 

Desfosses et al. [328] measured binding of oxyphenyl betazone to the N-ter-minal peptic fragment of human serum albumin (HSA) in aqueous buffer and AOT/isooctane-RMs. The peptide affinity for the drug did not decrease in RMs. The interactions of HSA at membrane mimetic interface and its subsequent unfolding was suggested to constitute a drug release facilitating mechanism. 

The chemical nature of the rubber determines which bonds are the weakest and are therefore more likely to be ruptured during mastication by the statistical concentration of mechanical energy about such bonds. An increase in the degree of asymmetry, an increase in the stiffness and the packing density of macromolecules facilitate mechanical scission resonance stability will influence the... 

Cisatracurium Similar to tubocurarine Like tubocurarine but lacks histamine release and antimuscarinic effects Prolonged relaxation of surgical procedures relaxation of respiratory muscles to facilitate mechanical ventilation in intensive care unit Not dependent on renal or hepatic function duration, 25-45 min Toxicities Prolonged apnea but less toxic than atracurium... 

A sulfonate oil, fatty alcohol, or quanternary ammonium compound used in textile finishing to impart superior hand to the fabric and facilitate mechanical processing. 

Another technique to expedite the transport of the volatile components from the molten polymer is to increase the number and rate of bubbles formed [14], Techniques that have been used to increase the number of bubbles and their rate of formation (nucleation) are the addition of chemical nucleating agents [15] and ultrasound [16]. Nucleation of bubbles in the molten polymer can help expedite the achievement of equilibrium in conventional falling strand devolatilizers. However, this facilitation mechanism cannot get below equilibrium and thus has minimal value. 

Experimentally, it has been observed that many substances are transported across plasma membranes by more complicated mechanisms. Although no energy is expended by the cell and the net flux is still determined by the electrochemical potential, some substances are transported at a rate faster than predicted by their permeability coefficients. The transport of these substances is characterized by a saturable kinetic mechanism the rate of transport is not linearly proportional to the concentration gradient. A facilitated mechanism has been proposed for these systems. Substances interact and bind with cellular proteins, which facilitate transport across the membrane by forming a channel or carrier. The two basic models of facilitated diffusion, a charmel or a carrier, can be experimentally distinguished (1,2). 

Reabsorption by simple diffusion Reabsorption by facilitated mechanisms Endocytosis... 

DEF is used as a cotton defoliant to facilitate mechanical harvesting. 

The joining technology must be integrated in the production process so as to facilitate mechanization or automated production... 

Other applications were herbicides, primarily sodium arsenate, as weed killers for railroad and telephone posts, desiccators, mainly arsenic acid (H3ASO4), for example, to facilitate mechanical cotton harvesting and for tobacco and blueberry fields. Most of these compounds, their derivatives or decomposition products are still present in various regions and contribute significantly to the arsenic burden of soils and waters. 

The substrate can be preheated, and paper can be dried, before it reaches the pressure roll and the chill rolls are also heated. The heated substrates and chill rolls allow the molten polymer to flow on the substrate and permit relaxation of the polymer chains. This not only facilitates mechanical interlocking of the coating and substrate, but also relieves stresses that would reduce adhesion of the coating to the substrate. The chill-roll temperature also affects the coating surface properties. Since rapid cooling freezes in coating defects, the coated surfaces are not as glossy. 

Berthelot method has the advantage of generating tension in a static, macroscopic volume of liquid this characteristic facilitates mechanical and... 

The pathophysiology of OIH is poorly understood. Various non-opioid chemicals, neurotransmitters, and receptors have been implicated, e.g., cholecystoki-nin (CCK), N-methyl D-aspartate (NMDA) receptor, neurokinin, etc. One mechanism for opioid-induced enhanced pain sensitivity may be the neuroplastic changes that result in part from the activation of descending pain facilitation mechanisms arising from the rostral ventromedial medulla (RVM) by increasing the activity of CCK in the RVM. These activated descending neural tracts facilitate nociceptive processing in the spinal cord. 

Amongst the synthetic growth retardants chlormequat chloride (2-chloro-ethyltrimethylammonium chloride), introduced by Cyanamid in 1959, has several uses including reducing the height of cereals to minimize wind damage and facilitate mechanical harvesting. 

L Physical dispersion in the electrolyte and adequate agitation facilitates mechanical entrapment special pumped electrolyte flow and plate plungers have been used. 

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