Institution
National Autonomous University of Mexico
Education•Mexico City, Distrito Federal, Mexico•
About: National Autonomous University of Mexico is a education organization based out in Mexico City, Distrito Federal, Mexico. It is known for research contribution in the topics: Population & Galaxy. The organization has 72868 authors who have published 127797 publications receiving 2285543 citations. The organization is also known as: UNAM & Universidad Nacional Autónoma de México.
Topics: Population, Galaxy, Catalysis, Thin film, Stars
Papers published on a yearly basis
Papers
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TL;DR: In this article, a phylogenetic supertree of all species of three communities driven by facilitation showed that nurse species facilitated distantly related species and increased phylogenetic diversity, and the regeneration niches were strongly conserved across evolutionary history.
Abstract: With the advent of molecular phylogenies the assessment of community assembly processes has become a central topic in community ecology. These processes have focused almost exclusively on habitat filtering and competitive exclusion. Recent evidence, however, indicates that facilitation has been important in preserving biodiversity over evolutionary time, with recent lineages conserving the regeneration niches of older, distant lineages. Here we test whether, if facilitation among distant-related species has preserved the regeneration niche of plant lineages, this has increased the phylogenetic diversity of communities. By analyzing a large worldwide database of species, we showed that the regeneration niches were strongly conserved across evolutionary history. Likewise, a phylogenetic supertree of all species of three communities driven by facilitation showed that nurse species facilitated distantly related species and increased phylogenetic diversity.
325 citations
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01 Jul 1999TL;DR: A gene network involved in the control of the morphogenesis of flowers in a model plant, Arabidopsis thaliana, is analyzed and some general conclusions about the structure of gene networks controlling development are proposed.
Abstract: Motivation: A large number of molecular mechanisms at the basis of gene regulation have been described during the last few decades. It is now becoming possible to address questions dealing with both the structure and the dynamics of genetic regulatory networks, at least in the case of some of the best-characterized organisms. Most recent attempts to address these questions deal with microbial or animal model systems. In contrast, we analyze here a gene network involved in the control of the morphogenesis of flowers in a model plant, Arabidopsis thaliana. Results: The genetic control of flower morphogenesis in Arabidopsis involves a large number of genes, of which 10 are considered here. The network topology has been derived from published genetic and molecular data, mainly relying on mRNA expression patterns under wild-type and mutant backgrounds. Using a 'generalized logical formalism', we provide a qualitative model and derive the parameter constraints accounting for the different patterns of gene expression found in the four floral organs of Arabidopsis (sepals, petals, stamens and carpels), plus a non-floral' state. This model also allows the simulation or the prediction of various mutant phenotypes. On the basis of our model analysis, we predict the existence ofa sixth stable pattern of gene expression, yet to be characterized experimentally. Moreover, our dynamical analysis leads to the prediction of at least one more regulator of the gene LFY, likely to be involved in the transition from the non-flowering state to the flowering pathways. Finally, this work, together with other theoretical and experimental considerations, leads us to propose some general conclusions about the structure of gene networks controlling development.
325 citations
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Gazi University1, National Cancer Research Institute2, University of California, Berkeley3, Vrije Universiteit Brussel4, Universidade Luterana do Brasil5, Universidade do Extremo Sul Catarinense6, Erciyes University7, University of São Paulo8, Indian Institute of Chemical Biology9, Assam University10, University of Guadalajara11, National Autonomous University of Mexico12, University of Sarajevo13, Universidade Federal de Pelotas14, Autonomous University of Barcelona15, Sao Paulo State University16, University of Würzburg17, Commonwealth Scientific and Industrial Research Organisation18, Universidad Autónoma de Guadalajara19, Kurukshetra University20, Mexican Social Security Institute21
TL;DR: The results of the HUMN(XL) project identified priorities for validation studies, increased the basic knowledge of the assay, and contributed to the creation of a laboratory network which in perspective may allow the evaluation of disease risk associated with MN frequency.
Abstract: Associazione Italiana per la Ricerca sul Cancro (AIRC), Italian Ministry of Health, Fondazione Buzzi Onlus, Casale, Italy
325 citations
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TL;DR: In this paper, the authors examined the rheological properties of aqueous solutions of the mucilage isolated from Opuntia ficus indica and found that the viscosity was dependent on ionic strength, as in the case of polyelectrolytes.
325 citations
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TL;DR: A review of palaeoclimatic records from Mexico which have a reasonable chronological framework and are readily accessible can be found in this article, where the available data indicate that over the Late Pleistocene and Holocene there have been significant climatic changes in Mexico, although smaller in magnitude than in other parts of the northern hemisphere tropics and subtropics.
325 citations
Authors
Showing all 73617 results
Name | H-index | Papers | Citations |
---|---|---|---|
Richard Peto | 183 | 683 | 231434 |
Anton M. Koekemoer | 168 | 1127 | 106796 |
Rory Collins | 162 | 489 | 193407 |
Timothy C. Beers | 156 | 934 | 102581 |
Vivek Sharma | 150 | 3030 | 136228 |
Kjell Fuxe | 142 | 1479 | 89846 |
Prashant V. Kamat | 140 | 725 | 79259 |
Carmen García | 139 | 1503 | 96925 |
Harold A. Mooney | 135 | 450 | 100404 |
Efe Yazgan | 128 | 986 | 79041 |
Roberto Maiolino | 127 | 816 | 61724 |
Peter Nugent | 127 | 754 | 92988 |
William R. Miller | 125 | 601 | 72570 |
Nicholas A. Kotov | 123 | 574 | 55210 |
John C. Wingfield | 122 | 509 | 52291 |