Institution
Instituto Superior Técnico
Education•
About: Instituto Superior Técnico is a based out in . It is known for research contribution in the topics: Catalysis & Finite element method. The organization has 10085 authors who have published 30226 publications receiving 667524 citations. The organization is also known as: IST & Instituto Superior Tecnico.
Topics: Catalysis, Finite element method, Population, Black hole, Ionic liquid
Papers published on a yearly basis
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TL;DR: In this paper, a nonlinear adaptive state feedback controller is proposed to asymptotically stabilize the closed-loop system in the presence of force disturbances, where the constant force disturbance is estimated through the use of a sufficiently smooth projector operator.
130 citations
TL;DR: In equilibrium conditions, it was found that higher DTAC concentrations are needed to induce the beta-->alpha transition than to unfold the protein, and beta-Lactoglobulin may therefore be considered as a model for protein-surfactant and protein-lipid interactions.
130 citations
TL;DR: In this paper, it was shown that for reheating temperatures safe from the point of view of the gravitino and moduli problem, T RH ≲10 9 GeV for m 3/2 ≈ 1 TeV, the strength of the generated seed fields is consistent with amplification by the galactic dynamo processes and can be even as large as to explain the observed galactic magnetic fields through the collapse of protogalactic clouds.
130 citations
TL;DR: The diagram suggests that in resting cells no ceramide domains exist, but upon apoptotic stimuli, platforms may form, and data show that 2 mol% of Cer strongly affects the POPC fluid matrix, suggesting that a small increase in Cer levels can significantly affect cell membrane properties.
Abstract: To understand the formation and properties of ceramide-enriched domains in cell membranes, the biophysical properties of the binary system palmitoyloleoylphosphatidylcholine (POPC)/palmitoylceramide were thoroughly characterized. Diverse fluorescent probes and parameters were necessary to unravel the complexity of this apparently simple system. For the first time, a complete phase diagram is reported, characterizing the lamellar phases of these mixtures, and providing a quantitative framework integrating biophysical and biological studies. The diagram suggests that in resting cells no ceramide domains exist, but upon apoptotic stimuli, platforms may form. Moreover, our data show that 2 mol% of Cer strongly affects the POPC fluid matrix, suggesting that a small increase in Cer levels can significantly affect cell membrane properties. In this work, we also show that Cer domains, formed in conditions similar to physiological, are extremely ordered and rigid. The domains composition is estimated from the phase diagram and their large size was concluded from fluorescence resonance energy transfer. Dynamic light scattering and electron microscopy were used to characterize the system morphology, which is highly dependent on ceramide content and includes vesiculation and tubular structure formation.
130 citations
TL;DR: In this paper, the authors present an overview of current solutions and the results of a research project where natural stone slurry is used to replace fine aggregates in concrete mixtures.
130 citations
Authors
Showing all 10288 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Joao Seixas | 153 | 1538 | 115070 |
| A. Gomes | 150 | 1862 | 113951 |
| Amartya Sen | 149 | 689 | 141907 |
| António Amorim | 136 | 1477 | 96519 |
| Joao Varela | 133 | 1411 | 92438 |
| Pietro Faccioli | 132 | 1378 | 89795 |
| João Carvalho | 126 | 1278 | 77017 |
| Pedro Jorge | 124 | 776 | 68658 |
| Pedro Silva | 124 | 961 | 74015 |
| A. De Angelis | 118 | 534 | 54469 |
| Hermine Katharina Wöhri | 116 | 629 | 55540 |
| Helena Santos | 114 | 1058 | 54286 |
| P. Conde Muiño | 109 | 558 | 56133 |
| Joao Saraiva | 107 | 519 | 53340 |
| J. N. Reddy | 106 | 926 | 66940 |