129 research outputs found
Acúmulo de ácido oxálico e cristais de cálcio em ectomicorrizas de eucalipto.: I- produção de ácido oxálico e concentração de nutrientes em raízes laterais finas colonizadas por fungos ectomicorrízicos
The effect of density anisotropy on the yielding and flow behavior of partially consolidated powder compacts
Palaeo sea-level and ice-sheet databases: problems, strategies and perspectives
Sea-level and ice-sheet databases are essential tools for evaluating palaeoclimatic changes. However, database creation poses considerable challenges and problems related to the composition and needs of scientific communities creating raw data, the compiliation of the database, and finally using it. There are also issues with data standardisation and database infrastructure, which should make the database easy to understand and use with different layers of complexity. Other challenges are correctly assigning credit to original authors, and creation of databases that are centralised and maintained in long-term digital archives. Here, we build on the experience of the PALeo constraints on SEA level rise (PALSEA) community by outlining strategies for designing a self-consistent and standardised database of changes in sea level and ice sheets, identifying key points that need attention when undertaking the task of database creation
The Company You Keep: How Young Firms in Different Competitive Contexts Signal Reputation through Their Customers
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