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| Marjan Jongen; Maria C. Caldeira; João S. Pereira. |
| In the Iberian Peninsula, the cork oak woodlands are of great ecological and socio-economic importance. These savanna-type woodlands are characterized by an herbaceous understorey, dominated by C3 annual species. The productivity and related ecosystem processes of this understorey are highly dependent on timing and magnitude of precipitation events. 

Climate change scenarios for the Iberian Peninsula suggest not only increasing air temperatures, but also the possibility of decreasing spring precipitation, accompanied by an increase in the interval between precipitation events, which might cause drought conditions to occur, with more severe effects on productivity and ecosystem processes.... |
| Tipo: Presentation |
Palavras-chave: Ecology. |
| Ano: 2009 |
URL: http://precedings.nature.com/documents/3706/version/1 |
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| Maria Alice Ornellas Pereira; Alfredo Pereira Jr. |
| Advancement of research on the neurobiology of the schizophrenic brain has revealed a complex of factors, from genetic tendencies affecting the development of brain structure to functional impairment caused by defective molecular signaling. Recently, the attention of psychiatrists and mental health professionals has been directed to the presence of cognitive deficits, responsible for most of the obstacles to the social insertion of patients.The schizophrenic person has a difficulty to manage the flux of consciousness in social interactions. We address this difficulty with the Flower Arrangement Workshop, a methodology of Psycho-Social Rehabilitation that reduces the vulnerability of the schizophrenic in the social environment. The workshop was offered... |
| Tipo: Presentation |
Palavras-chave: Neuroscience. |
| Ano: 2008 |
URL: http://precedings.nature.com/documents/1497/version/1 |
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| Rakesh Sharma; Avdhesh Sharma; Ching J. Chen. |
| In nature, metal oxide particles display their existence at the level of picomolecules in solution state and bioactive states in the body. We present evidence of picomolar behavior of molecules different than nanomolar behavior of particles. These particles can be encapsulated in polymers and can be functionalized with protein, nucleotides, and drugs to develop as smart intracellular targeting pico-devices. The preparation technique and physiological conditions decide the size and functionality of these pico-carrier devices. Their usable success rate, feasibility and potentials are yet to be proven or we do not know. The major difference between nanodevices and pico-devices is their intermolecular and intramolecular thermodynamics in medium and their... |
| Tipo: Presentation |
Palavras-chave: Biotechnology; Chemistry. |
| Ano: 2010 |
URL: http://precedings.nature.com/documents/4525/version/1 |
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| Pedro Beltrao; Luis Serrano. |
| Progress in uncovering the protein interaction networks of several species has led to questions of what underlying principles might govern their organization. Few studies have tried to determine the impact of protein interaction network evolution on the observed physiological differences between species. Using comparative genomics and structural information, we show here that eukaryotic species have rewired their interactomes at a fast rate of approximately 10?5 interactions changed per protein pair, per million years of divergence. For Homo sapiens this corresponds to 103 interactions changed per million years. Additionally we find that the specificity of binding strongly determines the interaction turnover and that different biological processes show... |
| Tipo: Presentation |
Palavras-chave: Bioinformatics; Evolutionary Biology. |
| Ano: 2007 |
URL: http://precedings.nature.com/documents/26/version/1 |
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| Kathryn M. Docherty; Brendan Bohannan; Audrey Niboyet; Xavier LeRoux. |
| Background/Question/Methods
The Domains Archaea and Bacteria contain the vast majority of Earth’s biodiversity and biomass, and their members play critical, often exclusive, roles in many biogeochemical cycles and ecosystem services. Human-induced global change, particularly with respect to increased nitrogen deposition, has the potential to drastically alter how soil nitrifying communities perform their biogeochemical function. Additionally, multi-factor global change can alter how microbial communities interact with each other and with the associated plant communities. This study, performed in the context of the long-term Jasper Ridge Global Change Experiment (JRGCE) in a California grassland ecosystem, examines how... |
| Tipo: Presentation |
Palavras-chave: Ecology; Microbiology; Earth & Environment. |
| Ano: 2011 |
URL: http://precedings.nature.com/documents/5508/version/1 |
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| Timothy M. Sesterhenn; Philip H. Crowley. |
| *_Background:_*
Damaged or missing appendages are a common problem in numerous vertebrate and invertebrate taxa and can negatively affect many aspects of life: mobility, foraging, predator avoidance, growth, and development have all been shown to suffer. Many animals use autotomy to survive a predation attempt but suffer diminished performance until the missing appendage heals or regenerates. Animals that regenerate face an extra problem, as they must re-allocate resources away from growth and development in order to regrow their missing parts. We examined the effect of appendage loss on the growth and development of the damselfly Ischnura posita. Damselfly larvae have three caudal lamellae, external gills that can be autotomized and... |
| Tipo: Presentation |
Palavras-chave: Ecology. |
| Ano: 2009 |
URL: http://precedings.nature.com/documents/3612/version/1 |
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| Eric Graham. |
| *Background/Question/Methods*
Citizen science projects engage individual volunteers or groups to observe, measure, and contribute data to scientific studies. CENS is building a collection of mobile phone and web-based tools to make the citizen scientist experience more engaging and flexible. CENS is an NSF-funded Information and Technology Center that employs graduate students from Computer Science and Electrical Engineering at UCLA to create open-source software that is environmentally and socially responsible. The overarching goal of the Networked Naturalist project is to enhance participatory learning experiences through citizen science campaigns and help transform the associated learning process. We are collaborating with national... |
| Tipo: Presentation |
Palavras-chave: Ecology. |
| Ano: 2010 |
URL: http://precedings.nature.com/documents/5198/version/1 |
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| Susanna-Assunta Sansone. |
| Research communities, funding agencies, and journals participate in the development of reporting standards for the bioscience domain to ensure that shared experiments are reported with enough information to be comprehensible and (in principle) reproducible, compared or integrated (Field, Sansone et al., Science, 2009). Similar trends in both the regulatory arena and commercial science.

Proliferation of standards is a positive sign of stakeholders’ engagement, but how much do we know about these standards? Which ones are mature and stable enough to use or recommend? Which tools and databases implement which standard? Etc...

The BioSharing catalogue (www.biosharing.org) aims... |
| Tipo: Presentation |
Palavras-chave: Bioinformatics; Data Standards. |
| Ano: 2011 |
URL: http://precedings.nature.com/documents/6151/version/1 |
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| Meha Jain; Case Prager; Dan Flynn; Caroline Devan; Georgia Hart; Farshid Ahrestani; Dan Bunker; Matt Palmer; Sean Smukler; Jason Sircely; Shahid Naeem. |
| Across the globe, biodiversity loss is occurring at an unprecedented rate. Rare species are especially susceptible to extinction, given that they typically have small population sizes and restricted geographic ranges, are less adaptable to disturbances, and are greater habitat specialists. However, while rare species may be prone to extinction, it remains unclear whether the loss of rare species is important to ecosystem function. In addition, it is important to consider the way in which rarity is defined, given that there are multiple definitions of rarity based on a species' geographic range, habitat specificity, and abundance in a community. Therefore, to better understand the contribution of rare species to community function, our study has... |
| Tipo: Presentation |
Palavras-chave: Ecology. |
| Ano: 2010 |
URL: http://precedings.nature.com/documents/5243/version/1 |
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| Malay Bhattacharyya; Sanghamitra Bandyopadhyay; Ujjwal Maulik. |
| We provide the first formalization true to the best of our knowledge to the problem of finding bicliques in a directed graph. The problem is addressed employing a two-stage approach based on an existing biclustering algorithm. This novel problem is useful in several biological applications of which we focus only on analyzing the viral-host protein interaction graphs. Strong and significant bicliques of HIV-1 and human proteins are derived using the proposed methodology, which provides insights into some novel regulatory functionalities in case of the acute immunodeficiency syndrome in human. |
| Tipo: Presentation |
Palavras-chave: Immunology; Bioinformatics. |
| Ano: 2012 |
URL: http://precedings.nature.com/documents/7148/version/1 |
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| Zuoshuang Xiang; Yongqun He. |
| OntoFox ("http://ontofox.hegroup.org/":http://ontofox.hegroup.org/) is a web server that facilitates ontology development by automatically fetching ontology terms and their annotations from existing ontologies and saving the results in importable RDF/OWL format. OntoFox is developed based on the MIREOT principle. Currently OntoFox can fetch ontology annotations from >10 existing ontologies. OntoFox provides an efficient approach to promote ontology sharing and interoperability. |
| Tipo: Presentation |
Palavras-chave: Bioinformatics. |
| Ano: 2009 |
URL: http://precedings.nature.com/documents/3528/version/1 |
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| Steven D. Allison. |
| *Background/Question/Methods*
Micro-organisms, including Bacteria, Archaea, and Fungi, control major processes throughout the Earth system. Recent advances in microbial ecology and microbiology have revealed an astounding level of genetic and metabolic diversity in microbial communities. However, a framework for interpreting the meaning of this diversity has lagged behind the initial discoveries. Microbial communities have yet to be included explicitly in any major biogeochemical models in terrestrial ecosystems, and have only recently broken into ocean models. Although simplification of microbial communities is essential in complex systems, omission of community parameters may seriously compromise model predictions of biogeochemical... |
| Tipo: Presentation |
Palavras-chave: Ecology; Earth & Environment. |
| Ano: 2009 |
URL: http://precedings.nature.com/documents/3633/version/1 |
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| Pascale Gaudet; Reference Genome Group. |
| Complete functional annotation of genomes is a powerful tool for researchers; however, such annotation is a time-consuming task limited by the availability of experimental data. The function of genes for which there is no experimental data can often be predicted via comparison to related, annotated sequences of known function. We describe here the Reference Genome project, an effort from the Gene Ontology (GO) Consortium to fully annotate twelve genomes to rigorous standards: human, plus eleven organisms that are important models in biomedical research, including mouse, fly, zebrafish, yeast and _E. coli_. To achieve this, we examine existing experimentally based annotations in a phylogenetic context in order to infer the function(s) of ancestral proteins... |
| Tipo: Presentation |
Palavras-chave: Genetics & Genomics; Bioinformatics. |
| Ano: 2009 |
URL: http://precedings.nature.com/documents/3150/version/1 |
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| Registros recuperados: 1.470 | |
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