Results 131 to 140 of about 5,471 (263)

Recent advances of non‐invasive sensors for smart wearable respiratory monitoring

open access: yesVIEW, EarlyView.
Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen   +8 more
wiley   +1 more source

Forest Ecology, Landscape Research and Nature Conservation, Issue 11 (2011) [PDF]

open access: yes, 2013
Heft 11 von WLN (Waldökologie, Landschaftsforschung und Naturschutz – Forest Ecology, Landscape Research and Nature Conservation) behandelt erneut ein Themenspektrum von hoher Relevanz.
Karrer, Gerhard   +3 more
core  

Late Holocene moisture variability in Arctic Alaska from chitin δ18O

open access: yesBoreas, EarlyView.
Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley   +1 more source

Mesure de l'indice foliaire de la canne à sucre par deux méthodes indirectes : Programme européen DOCUP 2000-2006. Contrat d'entreprise du Cirad-Ca - 2ème et 3ème tranche - Année 2005. Programme de travaux d'appui au développement de la canne à sucre en Guadeloupe [PDF]

open access: yes, 2006
Le stage a porté sur la mise au point de deux mesures indirectes de l'indice foliaire de couverts de canne à sucre. Cet indice est utilisé par les agronomes pour évaluer la croissance du couvert dans les jeunes stades de développement.
Grangeon, Romain
core  

Competitive interactions modify the direct effects of climate

open access: yesEcography, EarlyView.
As the climate is changing, species respond by changing their distributions and abundances. The effects of climate are not only direct, but also occur via changes in biotic interactions, such as competition. Yet, the role of competition in mediating the effects of climate is still largely unclear.
Ditte Marie Christiansen   +2 more
wiley   +1 more source

Estimation of vegetation biophysical parameters in grasslands and crops in Chile through hemispheric digital photography by a GoPro camera

open access: yesRevista de Teledetección, 2018
The estimation of the biophysical parameters of vegetation such as LAI (Leaf Area Index), FAPAR (Fraction of Absorbed Photosynthetically Active Radiation) and FCOVER (Fraction of Green Vegetation) have many climatic, hydrologic, ecosystem and silvo-agricultural applications.
D. Uribe, C. Mattar, F. Camacho
openaire   +1 more source

What controls forest litter decomposition? A coordinated distributed teabag experiment across ten mountains

open access: yesEcography, EarlyView.
Litter decomposition in mountainous forest ecosystems is an essential process that affects carbon and nutrient cycling. However, the contribution of litter decomposition to terrestrial ecosystems is difficult to estimate accurately because of the limited comparability of different studies and limited data on local microclimatic and non‐climatic factors.
Shiyu Ma   +24 more
wiley   +1 more source

Osteology and arthrology of the ankle and tarsometatarsus of anoles (Iguania: Anolidae): not convergent with geckos but divergent from the ancestral iguanian condition

open access: yesJournal of Anatomy, EarlyView.
Geckos and anoline iguanid lizards are well‐known for their possession of adhesive toepads, which are generally regarded as being convergent structures. We show that the anatomical configuration of the foot in these two lineages differs markedly and that these differences likely relate to the contrasing ways they deploy their adhesive systems and ...
Anthony P. Russell   +2 more
wiley   +1 more source

Evaluation of digital hemispherical photography and plant canopy analyser for measuring Vegetation area index of orange orchards

open access: yes, 2009
This study presents the results of an evaluation of two indirect methods (Plant Canopy Analyser (PCA) and hemispherical photographs) for measuring vegetation area index VAI of two orange orchards, differing by their ground fraction cover (fc). The evaluation is based on reference data obtained by destructive measurements on limited samples, which allow
Khabba, S.   +6 more
openaire   +1 more source

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

open access: yesJournal of Anatomy, EarlyView.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa   +7 more
wiley   +1 more source

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