Results 81 to 90 of about 59,653 (294)

Human Health Risk Assessment From Exposure to Toxic Metals in Soils and Leafy Vegetables in Smallholder Farms of Northeastern Brazil

Journal of Applied Toxicology, EarlyView.
ABSTRACT This study assessed human health risks associated with exposure to potentially toxic metals (PTMs) in soils and leafy vegetables cultivated in smallholder agricultural systems in Northeastern Brazil. Soil and vegetable samples were collected from 18 agricultural areas and analyzed for cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel
Fernando Ferreira da Cunha Filho, Alex Souza Moraes, João Paulo Siqueira da Silva, Edvane Borges da Silva, Ademir Amaral, André Maciel Netto   +5 more
wiley   +1 more source

Video-Based Mapping of Oyster Bottom in the Upper Piscataqua River, Sturgeon Creek, and Spruce Creek [PDF]

, 2009
Towed, underwater videography was used to map and characterize the extent of oyster bottom in the upper Piscataqua River, Sturgeon Creek, and Spruce Creek.
Grizzle, Raymond E., Ward, Krystin M.
core   +1 more source

Taxonomic reappraisal of the mangrove genus Avicennia (Acanthaceae) in India

Nordic Journal of Botany, EarlyView.
A taxonomic reappraisal of the mangrove genus Avicennia in India was undertaken through extensive field surveys and critical examination of herbarium specimens. Three taxa, Avicennia alba, Avicennia marina subsp. marina, and Avicennia officinalis, are described in detail. A synonymic list was compiled using the World Checklist of Vascular Plants (WCVP)
Subrata Mondal, Saikat Naskar
wiley   +1 more source

Law Enforcement in the Age of Big Data and Surveillance Intermediaries: Transparency Challenges

SCRIPTed: A Journal of Law, Technology & Society, 2017
In October 2016 Geofeedia made the news when it was reported that police services in North America had contracted with it for data analytics based on georeferenced information posted to social media websites such as Twitter and Facebook. Geofeedia is not
Teresa Scassa
doaj   +1 more source

Adequacy of pseudo-direct georeferencing of terrestrial laser scanning data for coastal landscape surveying against indirect georeferencing [PDF]

European Journal of Remote Sensing, 2017
The georeferencing process is crucial to the accuracy of terrestrial laser scanner (TLS) data, in particular in the context of diachronic studies relying on multi-temporal surveys. The use of Ground Control Points in the georeferencing process can however be complex when confronted with the practical constraints of coastal surveying. A simple and quick
Jaud, Marion, Letortu, Pauline, Augereau, Emmanuel, Le Dantec, Nicolas, Beauverger, Mickael, Cuq, Véronique, Prunier, Christophe, Le Bivic, Rejanne, Delacourt, Christophe   +8 more
openaire   +4 more sources

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

Nordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa, Sandro Márcio dos Santos Junior, Antônio Fernando Costa da Silva, Kalynne Nayara Lima dos Santos, Eduardo Bezerra de Almeida Jr   +4 more
wiley   +1 more source

Development of Distributed Research Center for analysis of regional climatic and environmental changes [PDF]

, 2016
We present an approach and first results of a collaborative project being carried out by a joint team of researchers from the Institute of Monitoring of Climatic and Ecological Systems, Russia and Earth Systems Research Center UNH, USA.
Gordov, E., Okladnikov, I., Prusevich, Alexander A., Shiklomanov, Alexander I., Titov, A.   +4 more
core   +1 more source

Update on the Fishes of Texas Project [PDF]

, 2017
Poster presentation presented at the 2017 Texas Academy of Sciences annual meeting in Belton, Texas on March 4, 2017.The Fishes of Texas project (www.fishesoftexas.org), originating in 2006, remains the most reliable (quality controlled) and data rich ...
Casarez, Melissa, Cohen, Adam, Garrett, Gary, Gentle, John, Hendrickson, Dean A., Martin, F. Douglas, Urban, Tomislav, Walling, David   +7 more
core   +1 more source

Visualizing patterns in spatially ambiguous point data

Journal of Spatial Information Science, 2015
As technologies permitting both the creation and retrieval of data containing spatial information continue to develop, so do the number of visualizations using such data.
Jonny Huck, Duncan Whyatt, Paul Coulton
doaj   +1 more source

Habitat‐based spatial patterns enable realistic reconstruction of plant spatial arrangements across complex landscapes

Oikos, EarlyView.
Spatially explicit individual‐based models provide a powerful way to explore spatial dynamics when direct observation is not feasible. But for many ecological applications, these models require detailed data on the initial spatial arrangement and traits of individuals – information rarely available in large, heterogeneous or novel landscapes.
Brayan Morera, Jose M. Fedriani, Thorsten Wiegand, Daniel Ayllón, Pedro J. Garrote   +4 more
wiley   +1 more source