Results 31 to 40 of about 16,058,836 (348)

Bone mineral: update on chemical composition and structure [PDF]

, 2009
Bone mineral: update on chemical composition and ...
Combes, Christèle, Drouet, Christophe, Glimcher, Melvin J., Rey, Christian   +3 more
core   +1 more source

Measurement report: The effects of SECA regulations on the atmospheric SO₂ concentrations in the Baltic Sea, based on long-term observations on the Finnish island, Utö [PDF]

Atmospheric Chemistry and Physics
The designation of the Baltic Sea as a sulfur emission control area (SECA) in May 2006, with subsequent tightening of regulations in 2010 and 2015, has reduced the sulfuric emission from shipping traffic.
A. Maragkidou, T. Grönholm, L. Rautiainen, J. Nikmo, J.-P. Jalkanen, T. Mäkelä, T. Anttila, L. Laakso, L. Laakso, J. Kukkonen, J. Kukkonen   +10 more
doaj   +1 more source

Chemical Composition of Turtles and Tortoises [PDF]

The Journal of Nutrition, 2006
Thirty-two aquatic turtles (Sternotherus odoratus; juvenile, semi-adult, adult; body weight 46–238g), 55 tortoises (29 Testudo hermanni,12 Testudo horsfieldii, 11 Geochelone pardalis, 3 Testudo graeca;hatchlings, juvenile, semiadult, adult; body weight 17–1104 g), and5 semiaquatic turtles (Rhinoclemmis pulcherrima; juvenile, semiadult;body weight 31–155
Kienzle, E, Kopsch, G, Koelle, P, Clauss, Marcus   +3 more
openaire   +2 more sources

Chemical Composition and in Vitro Evaluation of the Antioxidant and Antimicrobial Activities of Eucalyptus gillii Essential Oil and Extracts [PDF]

, 2012
In this study, essential oil and various extracts (hexane, petroleum ether, acetone, ethanol, methanol and water) of Eucalyptus gilii were screened for their chemical composition, antimicrobial and antioxidant activities.
Abderrabba, Manef, Mathieu, Florence, Bouajila, Jalloul, Lebrihi, Ahmed, Dorsaf Ben Hassine, Yvon, Yan, Yan Yvon, Jalloul Bouajila, Florence Mathieu, François Couderc, Ben Hassine, Dorsaf, Manef Abderrabba, Couderc, François, Ahmed Lebrihi   +13 more
core   +1 more source

Yield of essential oil from varieties of Citrus sinensis (L.) Osbeck [PDF]

Revista Brasileira de Fruticultura, 2023
Residues are generated after the processing of citrus fruits and can be used for essential oil extraction. Thus, the objective of this work was to evaluate the composition, yield, and quality of the proven oil of 30 orange varieties, as an alternative ...
Fernanda Rodrigues dos Santos, Jaqueline Lima da Conceição Souza, Barbara Rodrigues da Silva, Caio César de Oliveira Pereira, Rilner Alves Flores, Eli Regina Barboza de Souza   +5 more
doaj   +1 more source

The chemical composition of subducting sediment and its consequences for the crust and mantle

, 1998
Subducted sediments play an important role in arc magmatism and crust-mantle recycling. Models of continental growth, continental composition, convergent margin magmatism and mantle heterogeneity all require a better understanding of the mass and ...
T. Plank, C. Langmuir
semanticscholar   +1 more source

Regional Estimates of Chemical Composition of Fine Particulate Matter Using a Combined Geoscience-Statistical Method with Information from Satellites, Models, and Monitors.

Environmental Science and Technology, 2019
An accurate fine-resolution surface of the chemical composition of fine particulate matter (PM2.5) would offer valuable information for epidemiological studies and health impact assessments.
A. van Donkelaar, R. Martin, Chi Li, R. Burnett   +3 more
semanticscholar   +1 more source

Measurements of atmospheric C₁₀–C₁₅ biogenic volatile organic compounds (BVOCs) with sorbent tubes [PDF]

Atmospheric Measurement Techniques
Biogenic volatile organic compounds (BVOCs; e.g. terpenes) are highly reactive compounds typically present at sub-parts-per-billion mole fractions in the air.
H. Hellén, T. Tykkä, S. Schallhart, E. Stratigou, T. Salameh, M. Iturrate-Garcia   +5 more
doaj   +1 more source

Chemical composition of the mantle [PDF]

Journal of Geophysical Research: Solid Earth, 1983
The composition of primitive mantle (54 elements) is estimated by a mass balance approach that does not make a priori assignments of basalt:peridotite ratios or LIL contents of these components. It is also not necessary to assume that such ratios as Rb/Sr and K/U are the same as in the crust.
openaire   +2 more sources

The complex networks of earth minerals and chemical elements [PDF]

, 2008
We study the large-scale organization of the mineral-mineral (MMN) and element-element (EEN) complex networks by analyzing their topological structures.
Estrada, Ernesto, Ramon y Cajal program Spain (Funder), , Ramon y Cajal program Spain (Funder), Estrada, E.   +3 more
core   +3 more sources