Fiber complexes

Bulk microstructure Continuous channels Between fibers Complex foam to vertically oriented channels Closed cell to open cell foam None... 

Metabolism of pectin. Pectin has only recently come, to be considered a part of the dietary fiber complex. Previously it was excluded because 1) it is not fibrous (except at the molecular level), 2) it escapes detection in standard fiber tests owing to its solubility, and 3) it usually does not survive intestinal passage. In a reassessment of which dietary components should be considered fiber, Trowell (49) proposed that dietary fiber include those constituents of food resistant to hydrolysis by man s alimentary enzymes. Spiller (50, 51) suggested that confusion surrounding the term "fiber" be avoided by using the term "plantix" to denote those plant materials of polymeric nature not attacked by human digestive enzymes. 

Fig. 6. Proposed push-pull model for nematode sperm locomotion. Assembly and bundling of MSP filaments into fiber complexes (dark band spanning the lamellipo-dium) pushes the membrane at the leading edge forward. At the same time a second force, associated with disassembly of the fiber complexes at the base of the lamellipo-dium, pulls the cell body forward. In this model, attachments where the cytoskeleton is linked to the membrane and the membrane anchored to the substratum establish traction and separate mechanically the forces produced at opposite ends of the fiber complexes. Thus, rather than canceling each other, these forces can be exerted independently against the substratum. Reproduced from The Journal of Cell Biology, 2000, vol. 149, pp. 7-12 by copyright permission of the Rockefeller University Press.

The principles of the push-pull model probably apply generally to amoeboid cell motility. Indeed, a consensus is developing that in both sperm and actin-based crawling cells the force for protrusion is derived from localized cytoskeletal assembly (reviewed by Pollard and Borisy, 2003). However, as applied to nematode sperm locomotion, the model envisions that lamellipod extension and cell body retraction are linked reciprocally to the polymerization state of the cytoskeleton. The lack of structural polarity of MSP filaments, the precise localization of cytoskeletal polymerization and depolymerization at opposite ends of the fiber complexes, and insights gained from reconstitution of cytoskeletal dynamics and motility in vitro and in vivo all support the conclusion that nematode sperm move without using motor proteins and that, instead, they rely on... 

Pasta sauces based on fresh vegetables and olive oil are good sources of vitamins, fiber, complex carbohydrates, and unsaturated fat. 

Due to the composite nature of boron fibers, complex internal stresses and defects such as voids and structural discontinuities result from the presence of a... 

The complex heterogeneous structure of fiber is replaced with an effective homogeneous structure having an equivalent rate of mass transfer. Coefficient of mass diffusion through the effective homogeneous activated carbon fiber is defined as the effective diffusivity (Defr). Detr is then used to explain the mass transfer of adsorbed vapors through the original activated carbon fiber complex structure [6]. 

The selected fiber-cation complexes were stirred into emulsions containing fatty acids and subsequently examined. Figure U illustrates the results where it may be seen that the ferric-fiber complex caused a clear separation of phases apparently due to an almost quantitative interaction between ferric-fiber and fatty acids. The ferric-fiber broke the emulsion, bound virtually all the fatty acid present in the system and floated to the top thus creating a clear solution. The aluminum-fiber caused only partial separation while the H+, Ca2+ and Fe2+ neutralized fibers did not separate or show any preference for the hydrophobic or hydrophylic phase and formed a homogeneous dispersion. 

The mineral fiber complexes involving lignin, cellulose and wheat bran were subjected to three processes toasting (l hr. 

Decreased fat intake, particularly saturated fat intake, is clearly linked to decreased serum cholesterol levels and decreased prevalence of CV comphcations, such as CAD. Although recent studies place some doubt on the contribution of fat intake toward increasing the risk of breast cancer, high levels of fat intake are still associated with the risk of some cancers, and perhaps type n diabetes. Foods rich in other dietary components, including fiber, complex carbohydrates. 

Fiber complexes of ten tobacco cultlvars as byproducts of the leaf protein extraction process contain levels of neutral and acid detergent fiber comparable to that of alfalfa fiber and in excess of that in wheat bran. Compositional analyses revealed lesser concentrations of cellulose, lignin, and lipid but a greater amount of hemlcellulose in tobacco than in alfalfa. In reference to wheat bran, tobacco fiber has comparable amounts of Na, P, S,... 

When plants reached 50 cm or taller in the middle of June, all plants within a 0.36 m area were cut about 12 cm from the ground as one sample with three samples taken per plot. A total of 30 samples were separately processed to obtain deprotelnlzed and decolorized fiber complex. 

Purified plant fibers for dietary purposes are combinations of cellulose, lignin, hemicellulose, gums and pectinaceous substances that exert chemical and physical actions in the gastrointestinal tract. Dietary fiber complexes such as wheat bran contain not only the fiber components but also other organic compounds that contribute to nutrition. In comparison to wheat bran, the deproteinized and decolorized fiber complexes of tobacco and alfalfa have favorable chemical composition as dietary fibers. Their low concentrations in starch and lipids... 

Sei-Hyun, L., Seok-Min, Y., Sang, J.K., Soo-Jin, P, Young-Seak, L. Characterization of nanoporous f -SiC fiber complex prepared by electrospinning and carbothermal reduction. Res. Chem. Intermed. 36, 731-742 (2010)... 

Common cross sections of man-made fibers include round, trilobal, pentalobal, dog-bone, and crescent shapes. Whai two polymers are used in fiber formation as in bicomponent or biconstituent fibers, the two components can be arranged in a matrix, side-by-side, or sheath-core configuration. Round cross sections are also found where skin formation has caused fiber contraction and puckering (as with rayons) has occurred or where the spinneret shape has provided a hollow fiber. Complex fiber cross-sectional shapes with special properties are also used. See Figure 1-5. 

Ethyi Aicohoi (cont) 50 28 9 Satisfactory for use 100 Fluon VXl ICI Filler 30% Glass fiber complex salt Specimen 50.8 mm (2 in) square by 0.38 mm (0.015 in) thick tape... 

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