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This paper considers an SIRS epidemic model that incorporates constant immigration rate, a general population-size dependent contact rate and proportional transfer rate from the infective class to susceptible class.
      
An improved susceptible-infected-susceptible (SIS) model in the local-world evolving network model is presented to study the epidemic spreading behavior with time delay, which is added into the infected phase.
      
Biocides should be introduced into systems susceptible to biocorrosion at the start of their exploitation, otherwise higher concentrations or synergistic compositions have to be used.
      
A microbial association in the culture medium averaging 106 yeast cells/l and 108 bacterial cells/l is more susceptible to technogenic impacts and seasonal fluctuations.
      
However, cells subjected to oxidative stress are significantly less susceptible to the reactivating effect as compared to their UV-irradiated or heated counterparts.
      
The rhizosphere microbial consortium of alfalfa was less susceptible to effects of pollutants than that of reed.
      
The content of cytoplasmic protein during infection increased in the actively growing root zone (0-5 mm) and decreased in the root zones susceptible to rhizobia (5-20 mm from the root tip).
      
It is shown that the 40-kDa subunit has a high GTPase activity and is susceptible to ADP-ribosylation by pertussis toxin.
      
Using immunoenzyme assay, we studied the levels of phytohormones in resistant and susceptible varieties of wheat infected with Helminthosporium sativum.
      
The level of ABA increases in the infected plants of the susceptible variety.
      
When the treated phlox species were infected by the powdery mildew causative agent, the level of abscisic and salicylic acids increased in the susceptible Ph.
      
Both enzyme activities are inhibited by excess biliverdin IXα, but the NADPH-dependent enzyme activity is far more susceptible.
      
GATA-6 and NF-Y were selectively activated with lung carcinogens 3-methylcholanthrene and nitrosoethylurea in mice of strains susceptible to lung tumorigenesis but not in animals of resistant strains.
      
It was observed that the hemoglobin makes cells highly susceptible to killing by HOCl.
      
Cardiac mitochondria from DOX-treated rats were more susceptible to diamide-dependent induction of the MPT.
      
The CACO-2 cells were found to be 100-fold more susceptible to the clinical viruses than MDCK cells and chicken embryos.
      
The membranes with the hydrophilic surface are less susceptible to fouling than hydrophobic membranes, while the ability to recover the performance upon washing is higher for the membranes with a chemically neutral surface than for charged membranes.
      
It was found that motor space is more susceptible to these factors than visual field.
      
Aromatic hydrocarbons are susceptible to direct acylation by benzoic acids with high yields bearing ortho or para alkyl groups as substituents under Friedel-Crafts reaction conditions.
      
The authors find a limit distribution for the magnitude of the epidemic,v, on the assumption that n→∞, where n is the original number of susceptible persons, and
      
 

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