1 Max-Planck-Institut für Polymerforschung, D-55021 Mainz, Postfach 3148, FRG Institute of Physical Chemistry PAS and College of Sciences Dept. III, Kasprzaka 44/52, 01224 Warsaw, Poland Abstract We apply density functional theory to study the influence of polydispersity on the stability of columnar, smectic and solid ordering in the solutions of rodlike macromolecules. For sufficiently large l...

The identity of motor neurons diverges markedly at different rostrocaudal levels of the spinal cord, but the signals that specify their fate remain poorly defined. We show that retinoid receptor activation in newly generated spinal motor neurons has a crucial role in specifying motor neuron columnar subtypes. Blockade of retinoid receptor signaling in brachial motor neurons inhibits lateral mot...

Big Data query systems represent data in a columnar format for fast, selective access, and in some cases (e.g. Apache Drill), perform calculations directly on the columnar data without row materialization, avoiding runtime costs. However, many analysis procedures cannot be easily or efficiently expressed as SQL. In High Energy Physics, the majority of data processing requires nested loops with ...

Although the functional column has been implicated in the dorsolateral prefrontal cortex (DLPFC) of primates, its dynamics and even existence are still uncertain. We performed optical recording with a voltage-sensitive dye (RH482) in brain slices obtained from the principal sulcal region (area 46) of macaque monkeys. Columnar activity was evoked by electrical stimulation of the middle layer (lo...

High performance storage layer is vital for allowing interactive ad hoc SQL analytics (OLAP style) over Big Data. The paper makes a case for leveraging flash in the Big Data stack to speed up queries. State-ofthe-art Big Data layouts and algorithms are optimized for hard disks (i.e., sequential access is emphasized over random access) and result in suboptimal performance on flash given its dras...

CONTEXT Barrett's esophagus is characterized by the presence of goblet cells. However, when alcian-blue is utilized, another type of cells, called columnar blue cells, is frequently present in the distal esophagus of patients with endoscopic evidence of Barrett's esophagus. Cytokeratin 7 and 20 immunoreactivity has been previously studied in areas of intestinal metaplasia at the esophagogastric...

In this project, we present experimental laser welding of pure copper to stainless steel in the presence beam oscillation. The microstructure, element distribution and mechanical properties joints welded with without exposure oscillation were contrastively investigated employing scanning electron microscopy, energy dispersive X-ray spectrometry other methodologies. results showed that joint mic...

introduction: to determine the prevalence of depressive disorder and it's related factors in the patients with rheumatoid arthritis. methods: this cross-sectional study was conductd from april 2013 to august 2014.a total of 81 patients with rheumatoid arthritis (ra) were enrolled from rheumatology clinic, shahid beheshti hospital, kashan/ iran. the severety of depressive disorder was measured b...

in this study, behavior of pin-loaded glass fiber reinforced with polyethylene laminated composites with different stacking sequence and different dimensions has been observed experimentally and stress analysis was performed using ansys software. the aim is to investigate stresses, failure strength and failure mode of composite laminates containing a pin loaded hole when the material exhibits l...