Analyzing graphs is a fundamental problem in big data analytics, for which DBMS technology does not seem competitive. On the other hand, SQL recursive queries are a fundamental mechanism to analyze graphs in a DBMS, whose processing and optimization is significantly harder than traditional SPJ queries. Columnar DBMSs are a new faster class of database system, with significantly different storag...

Human mucin MUC3 and rodent Muc3 are widely assumed to represent secretory mucins expressed in columnar and goblet cells of the intestine. Using a 3'-oligonucleotide probe and in situ hybridization, we observed expression of rat Muc3 mostly in columnar cells. Two antibodies specific for COOH-terminal epitopes of Muc3 localized to apical membranes and cytoplasm of columnar cells. An antibody to ...

In the laser deposition of single crystal and directionally-solidified superalloys, it is desired to form laser deposits with high volume fractions of columnar grains by suppressing the columnar-to-equiaxed transition efficiently. In this paper, the influence of beam profile (circular and square shapes) and cooling conditions (natural cooling and forced cooling) on the geometric morphology and ...

We describe how cationic dendronized polymers of generations 1, and 2 and anionic monoalkyl tails can be combined by supramolecular ionic complexation into comb-like liquid crystalline polymers. The final structures in bulk of these supramolecular complexes were studied by differential scanning calorimetry (DSC), cross-polarized optical microscopy (CPOM), small angle x-rays scattering (SAXS) an...

Halm, Dan R., and Susan Troutman Halm. Secretagogue response of goblet cells and columnar cells in human colonic crypts. Am. J. Physiol. Cell Physiol. 278: C212–C233, 2000.—Crypts of Lieberkühn were isolated from human colon, and differential interference contrast microscopy distinguished goblet and columnar cells. Activation with carbachol (CCh, 100 μM) or histamine (10 μM) released contents f...

RÉSUMÉ. Les bases de données orientées colonnes offrent au domaine décisionnel le modèle le plus approprié au stockage des entrepôts de données. Cependant, en l’absence d’opérateurs d’analyse en ligne, le seul moyen, très coûteux, qui existe pour construire des cubes OLAP consiste à utiliser l’opérateur UNION sur des requêtes de regroupement afin d’obtenir l’ensemble des Group By nécessaires au...

– Motivated by puzzling experimental observations made in compounds composed of banana-shaped molecules, we investigate the symmetries and the physical properties of liquid crystalline columnar phases with a macroscopic polarization in achiral materials. This study is driven by two key observations made for the still poorly understood B7 phase: a) freely suspended films decompose spontaneously ...

2014 Dynamic quantities are computed near the transition from the columnar to the crystalline phase. The enhancement from order parameter fluctuations of the viscosities 03BD1 and 03BD3 is found to be proportional to the first power of the correlation length. We briefly describe how the 03C9-1/2 divergence of viscosities predicted in the columnar phase by Ramaswamy and Toner is suppressed near ...

The effect of pre-heating and post-weld heat treatment on microstructure mechanical properties laser-welded joints in a Ti–23Al–23Nb-1.4V-0.8Zr-0.4Mo-0.4Si (at.%) alloy was studied. Laser beam-welding carried out at room temperature as well after up to 800°С. comprised either air quenching from 920°С followed by aging 800°С or only the fusion zone consisted columnar β-grains welding 400 °C both...

[structure: see text] The title compounds were synthesized by applying the 1,3-dipolar cycloaddition reaction of aldehyde-based poly(benzyl ether) dendrimers and sarcosine (N-methylglycine) to [60]fullerene (C(60)). The dendritic building blocks used to functionalize C(60) displayed cubic and hexagonal columnar phases. The fullerene derivatives showed rectangular columnar phases of c2mm symmetry.