Results 91 to 100 of about 30,612 (224)

Xtrawood: refining estimation of tree above ground biomass using wood specific gravity variations and tree structure [PDF]

, 2016
Background: Tree above ground biomass (AGB) is currently estimated by tree-level allometrical models that take into account, tree volume estimated from proxy variables of tree size (DBH) and species average wood specific gravity (WSG).
Barczi, Jean-François, Beauchêne, Jacques, Bossu, Julie, Griffon, Sébastien, Lehnebach, Romain, Morel, Hélène, Nicolini, Eric-André   +6 more
core  

AMAP Assessment 2013: Arctic Ocean Acidification.

, 2013
This assessment report presents the results of the 2013 AMAP Assessment of Arctic Ocean Acidification (AOA). This is the first such assessment dealing with AOA from an Arctic-wide perspective, and complements several assessments that AMAP has delivered over the past ten years concerning the effects of climate change on Arctic ecosystems and people. The
Amundsen, Helene, Anderson, Leif, Andersson, Andreas, Azetsu-Scott, Kumiko, Bellerby, Richard, Beman, Michael, Browman, Howard I., Carlson, Craig, Cheung, William W. L., Chierici, Melissa, Clayton, Tonya, Cooley, Sarah, Croot, Peter, Daan, Nils, Duarte, Carlos, Dupont, Sam, Fine, Maoz, Flaaten, Ola, Fossa, Jan H., Fransson, Agneta, Gjertsen, Arild, Hall-Spencer, Jason, Hallock-Muller, Pamela, Havenhand, Jon, Hilmi, Nathalie, Hovelsrud, Greta K., Hurst, Thomas P., Iglesias-Rodriguez, Debora, Jeansson, Emil, Knorr, Paul, Kurihara, Haruko, Lam, Vicky W. Y., Lisle, John, Macdonald, Robie, MacKenzie, Fred, Manno, Clara, Mathis, Jeremy, McCoy, Sophie, Melzner, Frank, Miller, Lisa, Munday, Philip, Olafsson, Jon, Olsen, Are, Passow, Ute, Pörtner, Hans-Otto, Reiersen, Lars-Otto, Ries, Justin, Robbins, Lisa, Robert, Dominique, Runge, Jeffrey, Safa, Alain, Scott, David, Skjoldal, Hein Rune, Steiner, Nadja, Sumaila, U. Rashid, Suzuki, Keita, Thingstad, Frede, Wilson, Simon, Wootton, Tim, Yamamoto-Kauai, Michiyo   +59 more
openaire   +3 more sources

Investigating Abiotic Sources of Spectral Variability From Multitemporal Hyperspectral Airborne Acquisitions Over the French Guyana Canopy

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Classifiers trained on airborne hyperspectral imagery are proficient in identifying tree species in hyperdiverse tropical rainforests. However, spectral fluctuations, influenced by intrinsic and environmental factors, such as the heterogeneity of ...
Colin Prieur, Antony Laybros, Giovanni Frati, Daniel Schlapfer, Jocelyn Chanussot, Gregoire Vincent   +5 more
doaj   +1 more source

aMAP Score as a Predictor for Long-Term Outcomes in Patients with HBV-Related Acute-on-Chronic Liver Failure

International Journal of General Medicine, 2022
Yunqing Sun,* Zhuohong Li,* Guichan Liao, Muye Xia, Xuwen Xu, Shaohang Cai, Jie Peng Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China*These authors ...
Sun Y, Li Z, Liao G, Xia M, Xu X, Cai S, Peng J   +6 more
doaj  

A Generic Modelling of Fire Impact in a Tree-Grass Savanna Model

Biomath, 2014
We propose and study a model for tree-grass interactions in the context of savannas which are subjected to fire pressure. Several theoretical models in the literature which have highlighted the impact of fire on tree-grass interactions did not explicitly
Alexis Tamen Tchuinte, Jean-Jules Tewa, Pierre Couteron, Samuel Bowong, Yves Dumont   +4 more
doaj   +1 more source

Limits of Riemannian 4-manifolds and the symplectic geometry of their twistor spaces

, 2016
The twistor space of a Riemannian 4-manifold carries two almost complex structures, $J_+$ and $J_-$, and a natural closed 2-form $\omega$. This article studies limits of manifolds for which $\omega$ tames either $J_+$ or $J_-$.
Fine, Joel
core   +1 more source

The controllability of the aeroassist flight experiment atmospheric skip trajectory [PDF]

The Aeroassist Flight Experiment (AFE) will be the first vehicle to simulate a return from geosynchronous orbit, deplete energy during an aerobraking maneuver, and navigate back out of the atmosphere to a low earth orbit It will gather scientific data ...
Wood, R.
core   +1 more source

Sterile insect technology for control of Anopheles mosquito: a mathematical feasibility study [PDF]

, 2011
Anopheles mosquito is a vector responsible for the transmission of diseases like Malaria which a_ect many people. Hence its control is a major prevention strategy.
Anguelov, Roumen, Dumont, Yves, Lubuma, Jean   +2 more
core  

Combining satellite and field data reveals Congo's forest types structure, functioning and composition

Remote Sensing in Ecology and Conservation
Tropical moist forests are not the homogeneous green carpet often illustrated in maps or considered by global models. They harbour a complex mixture of forest types organized at different spatial scales that can now be more accurately mapped thanks to ...
Juliette Picard, Maïalicah M. Nungi‐Pambu Dembi, Nicolas Barbier, Guillaume Cornu, Pierre Couteron, Eric Forni, Gwili Gibbon, Felix Lim, Pierre Ploton, Robin Pouteau, Paul Tresson, Tom vanLoon, Gaëlle Viennois, Maxime Réjou‐Méchain   +13 more
doaj   +1 more source

The human health programme under AMAP. AMAP Human Health Group. Arctic Monitoring and Assessment Program.

International journal of circumpolar health, 1999
The human health programme of the first phase of AMAP was planned at an international meeting held in Nuuk, Greenland, October 1992. As the most vulnerable period to adverse effects of contaminants is during fetal development, it was decided to concentrate on analyses of umbilical cord blood and maternal blood.
openaire   +1 more source