OBJECTIVE To compare estimates of food behavior related to oral health obtained through a self-report measure and 24 hour dietary recalls (R24h). METHOD We applied three R24h and one self-report measure in 87 adolescents. The estimates for eleven food items were compared at individual and group levels. RESULTS No significant differences in mean values were found for ice cream, vegetables an...

Structures of molecules are usually represented by arbitrary line drawings, ball and stick or space filling models. In recent years, the author found that on using the appropriate radii of atoms and ions, bond lengths in inorganic, organic and biomolecules and of hydrogen bonds are exact sums of the radii of the adjacent atoms and or ions. This additivity of atomic radii was shown to hold also ...

The main factors that influence the quality of the raw meal during its production in a ball mill and storage in stock and homogenisation silos of continuous flow are investigated. A detailed simulation is used, incorporating all the key characteristics of the processes. The quality modules of the raw meal are controlled via robust PID controllers, optimized with the same simulator. The effect o...

background & aim:  considering the fact that cesarean section (c-section) poses greater risks of maternal and neonatal complications, compared to vaginal delivery, scholars seek different strategies to decrease the prevalence of this surgical procedure. birth ball exercises during pregnancy are among the proposed strategies. thus, this study aimed to determine the effect of using birth ball dur...

Endomyocardial fibrosis is a common heart disease among the indigenous peoples of many of the tropical African countries. The morbid anatomical findings have been described in detail by Davies and Ball (1955) so that only the fundamental features require comment here. The initial lesion seems to be in the endocardium at the apex of either or both ventricles. Thence the fibrotic process spreads ...

A cross-platform program, VESTA, has been developed to visualize both structural and volumetric data in multiple windows with tabs. VESTA represents crystal structures by ball-and-stick, space-filling, polyhedral, wireframe, stick, dot-surface and thermal-ellipsoid models. A variety of crystal-chemical information is extractable from fractional coordinates, occupancies and oxidation states of s...

The Hubbard model may be the simplest model of particles interacting on a lattice, but simulation of its dynamics remains beyond the reach of current numerical methods. In this article, we show that general quantum computations can be encoded into the physics of wave packets propagating through a planar graph, with scattering interactions governed by the fermionic Hubbard model. Therefore, simu...

In this work, we investigated the effect of soil tillage farming system on variability arbuscular mycorrhizal fungi (AMF) root colonization a local durum wheat variety, conducted during five years experimental trial in semi-arid region eastern Algeria. No improved AMF symbiotic activity from fourth year testing with appearance high percentage arbuscules at tillering and grain filling stage. Com...

We study domain monotonicity of the principal eigenvalue λ1 (α) corresponding to ∆u = λ(α)u in Ω, ∂u ∂ν = αu on ∂Ω, with Ω ⊂ Rn a C0,1 bounded domain, and α a fixed real. We show that contrary to intuition domain monotonicity might hold if one of the two domains is a ball.