A pot experiment was carried out under controlled condition to investigate the accumulation, uptake and toxicity effects of fluoride (F) in onion (Allium cepa L.) grown on the soil contaminated by inorganic fluoride (NaF). Six different levels of soil contamination were used by adding 0, 100, 200, 400, 600 and 800 mg NaFkg(-1) to the soil. The F concentration in shoot, bulb and root varied betw...

Let (L,4) be a finite distributive lattice, and suppose that the functions f1, f2 :L→ R are monotone increasing with respect to the partial order 4. Given μ a probability measure on L, denote by E(fi) the average of fi over L with respect to μ, i = 1,2. Then the FKG inequality provides a condition on the measure μ under which the covariance, Cov(f1, f2) := E(f1f2)−E(f1)E(f2), is nonnegative. In...

We show how the FKG Inequality can be used to prove negative dependence properties.

Background and Aim: Cleaning and shaping is one of the important steps in endodontic treatment, which has an important role in root canal treatment outcome. This study evaluated the rate of file fracture and file deformation in Neolix rotary system and K-files in shaping of the mesiobuccal canal of maxillary first molars with moderate curvature.    Materials and Methods: In this ex vivo exp...

The recently derived Fortuin, Kasteleyn and Ginibre (FKG) inequalities for lattice gasses are investigated for higher order Ising spin systems and multi-component lattice gasses. Conditions are given for the validity of the FKG inequalities for higher order spin systems with Hamiltonians of the form used recently as models for various physical systems, e.g. He — He mixtures. We also investigate...

introduction : removal of root filling materials is one of the key steps in success of root canal retreatment. the purpose of this study was to evaluate the efficacy of h-file and protaper with or without chloroform in the removal of gutta-percha during retreatment of mandibular premolars. materials and methods: sixty mandibular premolars with one canal, and curvatures less than 30 degrees were...

Let (L, ) be a finite distributive lattice, and suppose that the functions f1, f2 :L→ R are monotone increasing with respect to the partial order . Given μ a probability measure on L, denote by E(fi) the average of fi over L with respect to μ, i = 1,2. Then the FKG inequality provides a condition on the measure μ under which the covariance, Cov(f1, f2) := E(f1f2) − E(f1)E(f2), is nonnegative. I...