Additional file 2 of iRDA: a new filter towards predictive, stable, and enriched candidate genes

Table S2. Parsimonious gene sets of error performance. The file provides all the gene sets of four filters over eleven datasets based on generalisation error rate from Tables 3 and 7. (XLSX 19 kb

Additional file 1 of iRDA: a new filter towards predictive, stable, and enriched candidate genes

Table S1. Data repositories. The file provides data repositories of seven cancer benchmarks summarised in Table 2. (XLSX 10 kb

Boletín de Segovia: Número 144 - 1841 diciembre 2

Copia digital. Madrid : Ministerio de Cultura. Subdirección General de Coordinación Bibliotecaria, 200

Nonlinear Ziegler–Natta-Homopolyethylene with Enhanced Crystallinity: Physical and Macromolecular Characteristics

Polyolefin engineering and design are at the forefront of a significant number of research and development laboratories, helping to bring about new and highly specific materials for tailored uses. Tailoring the chain architecture of polyolefins improves their performance and physical properties. Four unique polyethylene (PE) materials with long-chain branches (LCBPE) are studied using advanced chromatographic fractionation techniques alongside linear high-density PE (HDPE) and typical commercial low-density PE (LDPE). The absence of short-chain branching in the analyzed LCBPEs allows for a defined correlation of long-chain branching (LCB) with specific physical properties. Possible effects of side-chain crystallization on melt behavior and crystallinity clearly show that the nonlinearity in architecture positively affects crystallinity while simultaneously lowering melting temperature. The separation of polyolefins according to the LCB content is demonstrated for the first time by high-temperature interaction chromatography and thermal analysis, in addition to size exclusion chromatography coupled to differential viscometer and light scattering detectors. This study is pioneering in applying solvent gradient interaction chromatography and stationary-phase-assisted crystallization to the separation of PE regarding long-chain branching

Long-Chain Branched Polypropylene: Effects of Chain Architecture, Melt Structure, Shear Modification, and Solution Treatment on Melt Relaxation Dynamics

Polymers with large molecular structures like long-chain branched polypropylene, LCB PP, are prone to a disentanglement phenomenon known as shear modification. Extrusion decreases melt viscosity and elasticity, restored by prolonged melt heating (annealing) or a solution treatment. Here, for LCB PPs and blends with linear isotactic polypropylene, L PP, we study chain architecture, branch content, linear viscoelasticity, the changes caused by shear modification, and recovery thereof in solution. Our LCB PPs are cross-linking products of a linear precursor. The architecture and molar mass distribution of the LCB PPs followed random branching according to percolation theory, with deviations explained by a non-negligible fraction of linear chains. A solvent-insoluble fraction, gel, was indicative of large percolation clusters. Shear modification of our LCB PPs was not fully reversible due to breakage of chains in the high molar mass tail or of even larger structures (percolation clusters) not detected by gel permeation chromatography. We also propose shear modification of LCB PP (i) deforms chain conformations, (ii) perturbs the long-range melt order created by the cross-linking reaction, and (iii) affects mixing quality between linear and branched chains. In solution, we propose recovery mechanisms are chain swelling into spherical conformations and a redistribution of linear and branched chains. Our work shows that the understanding shear modification of branched polymers requires knowledge of content and architecture of all chain species, their molecular mixing quality, and consequently their mutually dependent relaxation mechanisms