799 research outputs found
The jungle of methods for evaluating phenotypic and phylogenetic structure of communities
13 páginas, 4 figuras, 4 tablas.The way communities are assembled is an old ecological question currently experiencing renewed interest thanks to the recent advances in molecular biology and phylogenetics. The generality of these new methods has allowed us to understand the structure of communities of organisms from different kingdoms and at different scales. Concomitant with this growing interest, new methods, metrics, terms, and software have appeared that independently solve similar questions, but with different approaches. Here we provide a unifying framework on methods for community structure based on the relationships between four key concepts: phylogeny, phenotype, environment, and co-occurrence. The different approaches are based on different community representations of traits, the phylogenetic relationships of species in the community, or species occurrence along the environmental gradients. We finally provide insights on future directions of this emerging discipline.We thank María Clara Castellanos, Steve Kembel, Evan Weiher, and three anonymous referees for helpful comments and suggestions. This work has been developed under the framework of the Spanish projects VIRRA (CGL2009-12048/BOS) and VAMPIRO(CGL2008-05289-C02-01).Peer reviewe
Automatization of process of developing budget in the oil and gas industry
The aim of this study is to analyze and evaluate the software in budget process. Consolidated budget calculation of the cost of enterprises construction, buildings and structures is a document that defines the limit of the estimated funds needed to complete construction of all facilities envisaged by the project. Approved consolidated estimated budget of the cost of construction is the basis for determining the limit of capital investment and the opening of construction financing. The quality of the development of such budget depends on many factors, one of which is the use of advanced software products in the field of budget process automation. The article shows the advantages of modern software this field. The conclusion about the basic requirements to be met by the software in the budget business
Use marketing strategy in the intrnet space
This article deals with the theory and practice of modern methods of promotion products by industrial. The features of the concept of marketing in the Internet space and theiradvantages
Study of the effect of thermo - and photosdate on the properties of cotton fabrics by vibrational spectroscopy
By IR and Raman spectroscopy we studied the influence of photo - and thermal impact on dyed cotton fabric. The possibility is shown how the identification of different dyes and to detect signs of different ways impacts on the fabric. Demonstrated that the combined use of IR and Raman spectroscopy extends the study of woven materials
Способы модифицирования сварного соединения нанопорошками
В статье рассмотрены способы модифицирования сварного соединения наноструктурированными порошками
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