The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of executing path expressions is pointer chasing of precomputed joins. However it has been previously shown that converting implicit joins to explicit joins during the optimization phase may yield better execution plans. A path exp...

The object oriented database management systems store ref erences to objects implicit joins precomputed joins and use path ex pressions in query languages One way of executing path expressions is pointer chasing of precomputed joins However it has been previously shown that converting implicit joins to explicit joins during the opti mization phase may yield better execution plans A path express...

We provide a detailed analysis of the larval head chemosensory system of Drosophila melanogaster, based on confocal microscopy of cell-specific reporter gene expression in P[GAL4] enhancer trap lines. In particular, we describe the neuronal composition of three external and three pharyngeal chemosensory organs, the nerve tracts chosen by their afferents, and their central target regions. With a...

In this paper, a forward model for extended covariance matrix prediction for boreal and hemi-boreal forest in Pband SAR is presented. The main product is the extended covariance matrix scaled to sigma nought on the diagonal. The input parameters consist of basic radar setup, topography, forest biome, biomass, and some model parameters. Backscatter intensities for HH, VV, and HV channels are pre...

Introduction Interdisciplinary research has contributed greatly to an improved understanding of the vestibular system. To date, however, very little research has focused on the vestibular system's somatosensory afferents. To ensure the diagnostic quality of vestibular somatosensory afferent data, especially the extra cranial afferents, stimulation of the vestibular balance system has to be prec...

PURPOSE Vertically skewed eye movements are induced by head tilt toward the shoulder (roll). Because vertical and torsional eye movements are tightly coupled both mechanically and neuronally, the purpose of the present study was to investigate the conjugacy of torsional eye movements during the Bielschowsky head tilt test (BHTT). Furthermore, the purpose was to investigate the influence of diff...