ABSTRAcr Quantitative and qualitative data are presented for wood anatomy of the seven species of Cercidium (including two subspecies of C. floridum as well as the hybrid C. x sonorae) currently recognized. Data on wood of Parkinsonia are presented for purposes of comparison. Vessel walls of Cercidium show unusual sculpture: coarse excrescences termed verrucae here, crateriform pits, and groove...

Electronoyesella antiqua Simutnik, gen. et sp. nov. , is described and illustrated based on a female specimen from late Eocene Rovno amber. Like most previously Encyrtidae, the new taxon differs majority of extant ones in number features. Sclerotised metasomal structures, similar to paratergites Tetracneminae, are seen here for first time fossils. The genus characterized also by frontovertex wi...

objectives: the aim of the study was to compare the effect of fifth and seventh generation bonding agent on sealant success. materials and methods: sixty-four school children aged six to nine years received sealants in four permanent molars in a split mouth design, such that each patient received sealant in the first permanent molar with fifth generation bonding agent in one arch and seventh ge...

inscriptions in calligraphy, hard stone carving and rock reliefs have a long tradition in iranian art. although from the pre-islamic times many important samples of three dimensional sculptures have been found in iran, during the islamic era, because of the religious edicts and beliefs, that they had the sculpting prohibited, the art of sculpture couldn’t be developed in the way of pre-islamic ...

in this study, a hybrid intelligent model has been designed to predict groundwater inflow to a mine pit during its advance. novel hybrid method coupling artificial neural network (ann) with genetic algorithm (ga) called ann-ga, was utilised. ratios of pit depth to aquifer thickness, pit bottom radius to its top radius, inverse of pit advance time and the hydraulic head (hh) in the observation w...