INTRODUCTION Guayule (Parthenium argentatum Gray, Asteraceae) is a woody desert shrub (Whitworth and Whitehead 1991) which is under commercial development as a domestic source of hypoallergenic natural rubber (Siler and Cornish 1994; Carey et al. 1995; Cornish 1996, 1998; Cornish et al. 1996, 2001; Schloman et al. 1996; Siler et al. 1996; Cornish and Lytle 1999). To expedite commercialization, ...

The poly(styrene-methyl methacrylate) latex particles as potential physical shale stabilizer were successfully synthesized with potassium persulfate as an initiator in isopropanol-water medium. The synthesized latex particles were characterized by Fourier transform infrared spectroscopy (FT-IR), particle size distribution measurement (PSD), transmission electron microscopy (TEM), and thermal gr...

the amount and consistency of the applied forces to the tooth are important factors in tooth movements; therefore, the aim of this study was to compare the initial force and the force loss of three brands of elastics in 24 hours.in this in-vitro study sixty non-latex elastics (3/16 medium) from three companies (forestadent, dentaurum and ortho technology) were randomly selected. two static test...

This paper analyzes the sources of jitter in a DLL and presents a behavioral model for fast DLL optimization. An algorithm to simulate the DLL in open loop is demonstrated. This procedure, together with the behavioral modeling, greatly reduces the simulation time of DLL when compared to the closeloop DLL simulation. In order to optimize the DLL performance, the dependence of the output jitter v...

Turbidimetric immunoassay is commonly used to quantify serum proteins. Latex-particle enhancement of this type of assay has been primarily associated with increasing assay sensitivity. However, covalent coupling of an antibody to a latex particle can offer other advantages that are also pertinent in measurement of high concentrations of analytes. By using a common antibody with IgG as a model a...

C-Reactive protein (CRP) is an acute-phase protein that increases during systemic inflammation and is currently one of the most frequently studied inflammatory markers in epidemiology. We have determined CRP concentration using novel latex reagent with polyclonal antibody. In the present study, we determined the concentration of CRP using monoclonal antibodies, and evaluated the interaction of ...

You?re on to something here ? even when dealing with a potential latex sensitivity, it?s wise to still be thinking about safer sex strategies. But, an allergic reaction to latex can be one itchy situation, especially when it occurs down south! Fear not though, for there are non-latex options available (more on that in a bit). In the case of any sort of genital rash or irritation with unknown ca...

Immediate hypersensitivity reactions ranging from mild urticaria to life threatening anaphylaxis after exposure to natural rubber latex have been reported frequently in health care workers while occupational asthma due to latex exposure is less well studied. The results of specific challenge tests and immunological tests in four health care workers with work related respiratory and skin disorde...