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The analysis of ecological networks has gained a very prominent foothold in ecology over the last years. While many publications try to elucidate patterns about the networks, others are primarily concerned with the role of specific species in the network. The core challenge here is to tell specialists from generalists. While field data and observations can be used to directly assess specialisa ...

SUBJECT: node specialisation index; strength; bipartite network; degree; discrimination

POSTED TO: Network Biology [2220-8879]

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This paper describes the methodology and results of classifications of multi-temporal Landsat TM/ETM+ data of the Prefecture of Thessaloniki, Macedonia Greece for the years 1986, 1999 and 2008. Nine different land cover/use categories have been used, named coniferous, broadleaves and mixed forest, agriculture lands, rangelands, grasslands, water bodies, urban areas and others uses. The overall ...

SUBJECT: gis; thessaloniki; remote sensing; land cover/land use; multi-temporal images

POSTED TO: Proceedings of the International Academy of Ecology and Environmental Sciences [2220-8860]

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Mixing ratios of atmospheric NH3, NO and NO2 were measured during September to October 2008 and September to October 2009 over Delhi to study their variation and possible sources in respect of meteorological condition. Mixing ratio of atmospheric NH3 ranges from 1.05 to 39.26 ppbv with an average value of 17.47+- 3.25 ppbv during 2008. The average mixing ratio of atmospheric NH3 was increased ...

SUBJECT: no2; no; diurnal variation; chemiluminescence method; atmospheric nh3

POSTED TO: Proceedings of the International Academy of Ecology and Environmental Sciences [2220-8860]

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As a result of anthropogenic activities in different parts of the world, the soils are seen to be contaminated by heavy metals. In view of this the influence of an industrial environment on the accumulation of heavy metals in the surface soils of the Chitgar Industrial Area Tehran has been investigated. The total 70 top soils samples (0-15cm) were collected for a period between May 2007 and Ma ...

SUBJECT: temporal variation; soil pollution; heavy metal enrichment

POSTED TO: Proceedings of the International Academy of Ecology and Environmental Sciences [2220-8860]

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Green areas must be planned along with other city policies because they are important spaces that maintain the quality of the urban environment. The pattern of urbanization, especially with cities in the developing world, has negatively influenced green areas and, as a consequence, reduced the environmental benefits provided by them. Sao Paulo is one of the world's biggest cities in terms of t ...

SUBJECT: green areas; urban planning; indicators; sao paulo

POSTED TO: Proceedings of the International Academy of Ecology and Environmental Sciences [2220-8860]

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Odours emitted by rodent species convey cues about their overall body conditions and provide valuable information intervening in many aspects of their social relationships such as territorial and mating activities. Although bank vole is one of the primary models for studying chemical communication in wild rodents, literature is scarce about its reactivity to odours of conspecifics from its pop ...

SUBJECT: olfactory communication; myodes glareolus; wild rodents; chemical signals; population recognition

POSTED TO: Proceedings of the International Academy of Ecology and Environmental Sciences [2220-8860]

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Network biology is an exciting frontier science which uses network theory and methodology to address biological problems as regulatory networks, cancer, brain operation, food webs, ecosystems, etc. In this article the aims, scope, theoretical basis, and methodology of network biology were clearly described.

SUBJECT: frontier; science; aims and scope; network biology; methodology

POSTED TO: Network Biology [2220-8879]

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Invasive species damage ecological balance, reduce species diversity and threat humans. Biological invasions have become a global problem. In order to provide knowledge on prediction, impact assessment, control management and mechanism exploration of biological invasions, the present study analyzed the environment patterns and influential factors of biological invasion worldwide, and developed ...

SUBJECT: biological invasion; influential factors; environment patterns; invasive species; regression models

POSTED TO: Proceedings of the International Academy of Ecology and Environmental Sciences [2220-8860]

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Escherichia coli transcriptional regulatory network

Agustino Martinez-Antonio [05/2011]

Escherichia coli is the most well-know bacterial model about the function of its molecular components. In this review are presented several structural and functional aspects of their transcriptional regulatory network constituted by transcription factors and target genes. The network discussed here represent to 1531 genes and 3421 regulatory interactions. This network shows a power-law distrib ...

SUBJECT: network hierarchy; escherichia coli; transcriptional network

POSTED TO: Network Biology [2220-8879]

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A detailed and curated map of molecular interactions taking place in the polyphenols (flavonoids) biosynthesis in Theobroma cacao L. is presented. The map was created using the software Cytoscape v.2.7 and the KEGG (Kyoto Encyclopedia of Genes and Genomes) database. The statistical parameters of the network were determined with CentiScape v.1.1 and MetaAnalyzer v.2.6.1. A preliminary theoretic ...

SUBJECT: systems biology; graph model; metabolic network

POSTED TO: Network Biology [2220-8879]

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