Institution
Polytechnic University of Valencia
Education•Valencia, Spain•
About: Polytechnic University of Valencia is a education organization based out in Valencia, Spain. It is known for research contribution in the topics: Catalysis & Population. The organization has 16282 authors who have published 40162 publications receiving 850234 citations.
Papers published on a yearly basis
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TL;DR: Variable-temperature magnetic susceptibility measurements and M�ssbauer studies reveal that this compound shows low-spin to high-spin crossover behavior in the temperature range from 100 to 250 kelvin, fundamental for the interpretation of the mechanism leading to the spin crossover.
Abstract: The compound [Fe(tvp)(2)(NCS)(2)] . CH(3)OH, where tvp is 1,2-di-(4-pyridyl)-ethylene, has been synthesized and characterized by x-ray single-crystal diffraction. It consists of two perpendicular, two-dimensional networks organized in parallel stacks of sheets made up of edge-shared [Fe(II)](4) rhombuses. The fully interlocked networks define large square channels in the [001] direction. Variable-temperature magnetic susceptibility measurements and Mossbauer studies reveal that this compound shows low-spin to high-spin crossover behavior in the temperature range from 100 to 250 kelvin. The combined structural and magnetic characterization of this kind of compound is fundamental for the interpretation of the mechanism leading to the spin crossover, which is important in the development of electronic devices such as molecular switches.
556 citations
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TL;DR: By characterizing the target sequence specificity of 63 plant TFs representing 25 families, using protein-binding microarrays, the data support the correlation between cis-regulatory elements in vivo and the sequence determined in vitro and provides a framework to explore regulatory networks in plants.
Abstract: Transcription factors (TFs) regulate gene expression through binding to cis-regulatory specific sequences in the promoters of their target genes. In contrast to the genetic code, the transcriptional regulatory code is far from being deciphered and is determined by sequence specificity of TFs, combinatorial cooperation between TFs and chromatin competence. Here we addressed one of these determinants by characterizing the target sequence specificity of 63 plant TFs representing 25 families, using protein-binding microarrays. Remarkably, almost half of these TFs recognized secondary motifs, which in some cases were completely unrelated to the primary element. Analyses of coregulated genes and transcriptomic data from TFs mutants showed the functional significance of over 80% of all identified sequences and of at least one target sequence per TF. Moreover, combining the target sequence information with coexpression analysis we could predict the function of a TF as activator or repressor through a particular DNA sequence. Our data support the correlation between cis-regulatory elements and the sequence determined in vitro using the protein-binding microarray and provides a framework to explore regulatory networks in plants.
553 citations
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TL;DR: This critical review covers the various synthetic methods reported on azo compounds with special emphasis on the more recent ones and their mechanistic aspects (170 references).
Abstract: Azobenzenes are ubiquitous motifs very important in many areas of science. Azo compounds display crucial properties for important applications, mainly for the chemical industry. Because of their discovery, the main application of aromatic azo compounds has been their use as dyes. These compounds are excellent candidates to function as molecular switches because of their efficient cis–transisomerization in the presence of appropriate radiation. The classical methods for the synthesis of azo compounds are the azo coupling reaction (coupling of diazonium salts with activated aromatic compounds), the Mills reaction (reaction between aromatic nitroso derivatives and anilines) and the Wallach reaction (transformation of azoxybenzenes into 4-hydroxy substituted azoderivatives in acid media). More recently, other preparative methods have been reported. This critical review covers the various synthetic methods reported on azo compounds with special emphasis on the more recent ones and their mechanistic aspects (170 references).
552 citations
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TL;DR: The application of zeolite-based catalysts in the production of chemicals and fine chemicals is an emerging field, and will greatly depend on the discovery of new or known structures by alternative, lower cost, synthesis routes, and the fine tuning of their textural properties as mentioned in this paper.
549 citations
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Geological Survey of Denmark and Greenland1, Victoria University of Wellington2, University of Zurich3, International Centre for Integrated Mountain Development4, University of Pisa5, University of Magallanes6, Polytechnic University of Valencia7, Natural Resources Canada8, Nagoya University9, University of Silesia in Katowice10, University of Oslo11, Stockholm University12, Nichols College13, Moscow State University14, University of Innsbruck15, Geological Survey of India16, Met Office17, Higher University of San Andrés18
TL;DR: This article provided an overview and analysis of the main observational datasets compiled by the World Glacier Monitoring Service (WGMS) and showed that the rates of early 21st-century mass loss are without precedent on a global scale, at least for the time period observed and probably also for recorded history.
Abstract: Observations show that glaciers around the world are in retreat and losing mass. Internationally coordinated for over a century, glacier monitoring activities provide an unprecedented dataset of glacier observations from ground, air and space. Glacier studies generally select specific parts of these datasets to obtain optimal assessments of the mass-balance data relating to the impact that glaciers exercise on global sea-level fluctuations or on regional runoff. In this study we provide an overview and analysis of the main observational datasets compiled by the World Glacier Monitoring Service (WGMS). The dataset on glacier front variations (�42000 since 1600) delivers clear evidence that centennial glacier retreat is a global phenomenon. Intermittent readvance periods at regional and decadal scale are normally restricted to a subsample of glaciers and have not come close to achieving the maximum positions of the Little Ice Age (or Holocene). Glaciological and geodetic observations (�5200since 1850) show that the rates of early 21st-century mass loss are without precedent on a global scale, at least for the time period observed and probably also for recorded history, as indicated also in reconstructions from written and illustrated documents. This strong imbalance implies that glaciers in many regions will very likely suffer further ice loss, even if climate remains stable.
548 citations
Authors
Showing all 16503 results
Name | H-index | Papers | Citations |
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Avelino Corma | 134 | 1049 | 89095 |
Bruce D. Hammock | 111 | 1409 | 57401 |
Geoffrey A. Ozin | 108 | 811 | 47504 |
Wolfgang J. Parak | 102 | 469 | 43307 |
Hermenegildo García | 97 | 792 | 46585 |
María Vallet-Regí | 95 | 711 | 41641 |
Albert Ferrando | 87 | 419 | 36793 |
Rajendra Prasad | 86 | 945 | 29526 |
J.J. Garcia-Luna-Aceves | 86 | 602 | 25151 |
George W. Huber | 84 | 280 | 37964 |
Juan J. Calvete | 81 | 458 | 22646 |
Juan M. Feliu | 80 | 544 | 23147 |
Amparo Chiralt | 78 | 298 | 18378 |
Michael Tsapatsis | 77 | 375 | 20051 |
Josep Redon | 77 | 488 | 81395 |