Factors influencing resistance

Table I. Factors Influencing Resistance Risks After Staub and Sozzi (12)...

R. B. Polder, L. Bertolini, Factors influencing resistivity of concrete and consequences for corrosion of embedded steel . Materials and Corrosion, submitted. 

Numerous studies have probed how novolac microstmcture influences resist hthographic properties. In one example, a series of resists were formulated from novolacs prepared with varying feed ratios ofpara-jmeta-cmso. These researchers found that the dissolution rate decreased, and the resist contrast increased, as thepara-jmeta-cmso feed ratio increased (33). Condensation can only occur at the ortho position ofpara-cmso but can occur at both the ortho- and i ra-positions of meta-cmso. It is beheved that increased steric factors and chain rigidity that accompany increasedpara-cmso content modify the polymer solubihty. 

Types of Wear. There are several distinct types of wear that can be divided into three main categories abrasive wear, sliding wear, and erosive wear. The type of wear encountered in a particular appHcation is an important factor influencing the selection of a wear-resistant material. 

Temperature Dry wire-pipe ESPs can operate at very high temperatures, up to 700°C (1300°F). Operating gas temperature and chemical composition of the dust are key factors influencing dust resistivity and must be carefully considered in the design of an ESP. 

The factors influencing the corrosion of metals in soil are more numerous than those prevailing in air or water, and the electrochemical effects are more pronounced. Moreover, soils vary widely in their composition and behaviour even over very short distances. It is difficult therefore to obtain reliable data. It is evident, however, that zinc has considerable resistance to corrosion when buried, and the greatest attack is caused by soils which are acid or contain large amounts of soluble salts. 

Risk factors for developing an infection caused by a resistant pathogen generally are related to the prior use of antibiotics, insertion of catheters or other invasive devices, and hospitalization in a unit contaminated/colonized with resistant organisms. The following is a more complete list of factors influencing infection from a resistant organism ... 

Many factors influence the deposition kinetics of P and B, including metal ion and complexant concentrations, solution pH, and temperature. Though unavoidable side products of the electroless deposits, P and B impart unique properties to electroless deposits, e.g., good corrosion resistance in the case of Ni-P deposits, where the P content can exceed 30 at% in certain solutions [10, 11],... 

Pavia H, Brock E (2000) Extrinsic factors influencing phlorotannin production in the brown seaweed Ascophyllum nodosum. Mar Ecol Prog Ser 193 285-294 Pavia H, Toth GB (2000a) Inducible chemical resistance to herbivory in the brown seaweed Ascophyllum nodosum. Ecology 81 3212-3225... 

As can be concluded from this short description of the factors influencing the overall reaction rate in liquid-solid or gas-solid reactions, the structure of the stationary phase is of significant importance. In order to minimize the transport limitations, different types of supports were developed, which will be discussed in the next section. In addition, the amount of enzyme (operative ligand on the surface of solid phase) as well as its activity determine the reaction rate of an enzyme-catalyzed process. Thus, in the following sections we shall briefly describe different types of chromatographic supports, suited to provide both the high surface area required for high enzyme capacity and the lowest possible internal and external mass transfer resistances. 

Claude P [1978] Morphological factors influencing transepithelial permeability a model for the resistance of the zonula occludens. 1 Membr Biol 39 219-232... 

Novo A, Manaia CM (2010) Factors influencing antibiotic resistance burden in municipal waste water treatment plants. Appl Microbiol Biotechnol 87(3) 1157-1166... 

A number of resistance factors influence behavioral processes and hence determine an insect s preference or non-preference for a particular plant. Hosts which do not contain the proper kairo-monal compounds are often totally rejected as food plants and by ovipositing females. Dethier (29) noted, however, that plants are almost never neutral, but are aTmost always either attractive or repellant. As previously observed, the ovipositional choice of the female imago and the food choice of the larvae usually coincide ( ). 

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