Results 31 to 40 of about 225,655 (338)
Cellulose in Foliage and Changes during Seasonal Leaf Development of Broadleaf and Conifer Species
Plants, 2022 Stable isotope approaches are widely applied in plant science and many improvements made in the field focus on the analysis of specific components of plant tissues.
Zoltan Kern +4 more
doaj +1 more source
Functional Phenology of a Texas Post Oak Savanna from a CHRIS PROBA Time Series
Remote Sensing, 2019 Remnant midwestern oak savannas in the USA have been altered by fire suppression and the encroachment of woody evergreen trees and shrubs. The Gus Engeling Wildlife Management Area (GEWMA) near Palestine, Texas represents a relatively intact southern ...
Michael J. Hill +3 more
doaj +1 more source
Ciencias Marinas, 2020 Ctenophores in the class Tentaculata are distinct from Cnidarians in that they use sticky, not stinging, tentacles to capture and subdue their prey.
Nicholas D Leonardi +2 more
doaj +1 more source
A remotely sensed pigment index reveals photosynthetic phenology in evergreen conifers
Proceedings of the National Academy of Sciences of the United States of America, 2016 Significance Evergreen photosynthetic activity has been difficult to determine from remote sensing, causing errors in terrestrial photosynthetic carbon uptake models. Using a reflectance chlorophyll/carotenoid index (CCI) sensitive to seasonally changing
J. Gamon +7 more
semanticscholar +1 more source
MethodsX, 2020 Hemoglobin derivatives are often quantified in blood to establish cardio-respiratory status and possible causes of impaired oxygen transport. The derivative known as methemoglobin results from oxidation of hemoglobin and is pathologically relevant ...
Stephanie Blair +4 more
doaj +1 more source
Remote Sensing, 2016 Tropical environments present a unique challenge for optical time series analysis, primarily owing to fragmented data availability, persistent cloud cover and atmospheric aerosols.
Kenneth Grogan +4 more
doaj +1 more source
Decomposing reflectance spectra to track gross primary production in a subalpine evergreen forest
Biogeosciences, 2020 . Photosynthesis by terrestrial plants represents the majority of CO2 uptake on Earth, yet it is difficult to measure directly from space. Estimation of gross primary production (GPP) from remote sensing indices represents a primary source of uncertainty,
Rui Cheng +11 more
semanticscholar +1 more source
Vegetation of Doi Tung, Chiang Rai Province, Northern [PDF]
Maejo International Journal of Science and Technology, 2007 The climate of Doi Tung, Chiang Rai Province, is monsoonal with three distinctseasons, viz. cool-dry, hot-dry, and rainy. The elevation ranges from c. 350-1525m and mostof the bedrock is limestone and granite. Vegetation below c.
J. F. Maxwell
doaj
Forest Systems, 2015 Aims of study: Our aim is to check the effect of different environmental factors on the leaf senescence of four Quercus species with different leaf longevities, to help us better understand the implications of climate change on leaf demography.
Teresa del Río-García +3 more
doaj +1 more source
Scientific Reports, 2023 Few studies have been designed to investigate the effect of serum choline on the risk of incident cancer. This study aims to explore the association between serum choline and the risk of new-onset cancer.
Wenqiang Li +7 more
doaj +1 more source