In this paper existing guidelines to predict wave overtopping on rubble mound breakwaters and coastal structures are modified improved with respect the influence of roughness crest width. Data from recently made model tests data combined demonstrate need for modifying these formulations in EurOtop. A new reduction factor γcw width is established an improvement method by Besley. The slope normal...

Rainfall leads to the deterioration of slope stability conditions, while intense rainfall has been commonly associated with landslides on natural or engineered slopes. Deep excavations, typically related geo-resources exploitation, e.g., in case surface mining, are often affected by events that jeopardize their stability. In this work, infiltration is directly incorporated analysis; investigati...

We introduce the definitions of a δ-shock wave type solution for the multidimensional system of conservation laws ρt +∇ · (ρF (U)) = 0, (ρU)t +∇ · (ρN(U)) = 0, x ∈ R, where F = (Fj) is a given vector field, N = (Njk) is a given tensor field, Fj , Nkj : Rn → R, j, k = 1, . . . , n. The well-known particular cases of this system are zero-pressure gas dynamics in a standard form ρt +∇ · (ρU) = 0, ...

statement of the problem early detection of periodontal disease and distruction is important for prevention of further destruction of the tissues. we carried out this study to determine the normal cement enamel junction (cej) to alveolar bone crest (abc) distance in the interproximal area of primary molars on bitewing (b. w) radiographs in healthy 7-9 year old girls living in hamadan, iran. mat...

Solar activity during 2008 2009 was extremely low among several recent solar cycles, raising an interesting question regarding the temporal and spatial distribution of the plasma parameters in ionosphere during this time period. This study analyzes the electron density (Ne) data recorded by the DEMETER satellite at the height of 670 km and compares it with the International Reference Ionosphere...

Three behavioural tasks (standard visual search, multiple target search, and numberdiscrimination)weretestedwithavariety of stimuli relevanttotwo-stage theories of vision. One purpose was to compare the two versions of the search task; a second was to explore the relations between processes of search and enumeration. The two search tasks were quite consistent overall, with strong correlations b...

Hoxa2 is expressed in cranial neural crest cells that migrate into the second branchial arch and is essential for proper patterning of neural-crest-derived structures in this region. We have used transgenic analysis to begin to address the regulatory mechanisms which underlie neural-crest-specific expression of Hoxa2. By performing a deletion analysis on an enhancer from the Hoxa2 gene that is ...

The goal of this study was to characterize the eruptive behavior of Olympus Mons, Mars, by estimating flow speeds and volume fluxes for lava flows produced from various vents on the volcano. During my fellowship, I have made width, depth and ground slope measurements of 65 lava tubes and 271 channels from 56 MOC images and 65 THEMIS images of Olympus Mons. The data show that channels are more n...

  Objective: Microbial plaque is among the main etiologies of periodontal disease, and tooth brushing with toothpaste is the most commonly used method of plaque control. This study aimed to compare the efficacy of tooth brushing with and without three different dentifrices.   Methods: Thirty dental students were randomly selected to participate in this clinical trial and were asked to refrain f...