Results 91 to 100 of about 2,452,454 (266)

What I learned at “Rio + 20” about the future we want

open access: yesConservation Science in Cultural Heritage, 2012
The paper briefly treats the salient points of the World Summit held in Rio de Janeiro in 2012. As for previous occasions regarding United Nations conferences, the objectives, highlighted and described in this work are aimed at promoting an integrated ...
Valery S. Petrosyan
doaj   +1 more source

The effects of curvature correction terms on brane cosmology

open access: yes, 2004
We study the cosmology of the Randall-Sundrum brane-world where the Einstein-Hilbert action is modified by curvature correction terms: a four-dimensional scalar curvature from induced gravity on the brane, and a five-dimensional Gauss-Bonnet curvature ...
Papantonopoulos, E.
core   +1 more source

Integrated Evaluation of Contaminant Profiles, Detection Techniques, and Management Strategies for Tannery Sludge

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This review article critically examines the environmental and health hazards of tannery sludge (TS), a complex by‐product of the leather tanning industry. TS is characterized by a diverse array of contaminants, including heavy metals like chromium, organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds ...
Yashar Aryanfar   +10 more
wiley   +1 more source

Gobernabilidad transnacional ambiental en Río+20

open access: yesJurídicas, 2013
Este artículo tiene como objetivo investigar los límites del actual modelo político y jurídico de gestión y tutela de los bienes ambientales en una perspectiva global, en especial a partir de las reflexiones de la conferencia sobre el medio ambiente Río+
Paulo Márcio Cruz, Zenildo Bodnar
doaj  

Influence of Botanical Origin on the Optical, Surface, and Nanomechanical Properties of Nanocellulose‐Based Films: A Comparative Study

open access: yesJournal of Applied Polymer Science, EarlyView.
Schematic representation of the processing and multiscale characterization of nanocellulose films from different botanical sources. ABSTRACT Although the influence of botanical origin on nanocellulose properties is well recognized, an integrated multiscale framework linking chemical composition, fractal surface descriptors, and nanomechanical behavior ...
Márcia da Silva Costa   +9 more
wiley   +1 more source

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

open access: yesThe Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Políticas da Terra: existe um novo discurso ambiental pós Rio +20?

open access: yesCadernos EBAPE.BR
Políticas públicas envolvem a construção de significado através de discursos, que caracterizam redes semânticas complexas, articulando diferentes pressupostos, conceitos e hipóteses.
Juliana Wenceslau   +2 more
doaj   +1 more source

Frontiers in Cosmic Rays

open access: yes, 2004
This rapporteur review covers selected results presented in the Parallel Session HEA2 (High Energy Astrophysics 2) of the 10th Marcel Grossmann Meeting on General Relativity, held in Rio de Janeiro, Brazil, July 2003. The subtopics are: ultra high energy
Anchordoqui, Luis A.   +2 more
core   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

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