Results 11 to 20 of about 28,269 (244)

UHPLC-Q-Orbitrap-MS-Based Metabolomics Reveals Chemical Variations of Two Types of Rhizomes of Polygonatum sibiricum

Molecules, 2022
The rhizomes of Polygonatum sibiricum are commonly consumed as food and also used as medicine. However, the metabolic profile of P. sibiricum has not been fully revealed yet. Recently, we developed a novel evergreen species of P. sibiricum.
Gelian Luo, Junhan Lin, Weiqing Cheng, Zhibin Liu, Tingting Yu, Bin Yang   +5 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, Andrew Millington, Rebecca Lemons, Cherie New   +3 more
doaj   +1 more source

Mapping Clearances in Tropical Dry Forests Using Breakpoints, Trend, and Seasonal Components from MODIS Time Series: Does Forest Type Matter?

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, Dirk Pflugmacher, Patrick Hostert, Jan Verbesselt, Rasmus Fensholt   +4 more
doaj   +1 more source

A sticky thicket of glue cells: A comparative morphometric analysis of colloblasts in 20 species of comb jelly (phylum Ctenophora)

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, Erik V Thuesen, Steven HD Haddock   +2 more
doaj   +1 more source

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, Adam Kimak, István Gábor Hatvani, Daniela Maria Llanos Campana, Markus Leuenberger   +4 more
doaj   +1 more source

Methemoglobin determination by multi-component analysis in coho salmon (Oncorhynchus kisutch) possessing unstable hemoglobin

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, Clyde Barlow, Erin Martin, Ruth Schumaker, Jenifer McIntyre   +4 more
doaj   +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  

Differences in the environmental control of leaf senescence of four Quercus species coexisting in a Mediterranean environment

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, Sonia Mediavilla, Fernando Silla, Alfonso Escudero   +3 more
doaj   +1 more source

Support for a Photoprotective Function of Winter Leaf Reddening in Nitrogen-Deficient Individuals of Lonicera japonica

Molecules, 2014
Plants growing in high-light environments during winter often exhibit leaf reddening due to synthesis of anthocyanin pigments, which are thought to alleviate photooxidative stress associated with low-temperature photoinhibition through light attenuation ...
Kaylyn L. Carpenter, Timothy S. Keidel, Melissa C. Pihl, Nicole M. Hughes   +3 more
doaj   +1 more source

A Qualitative Study on Engaged Families’ Experiences with Long-Term Follow-Up Care in the Colorado/Wyoming Newborn Screening System

International Journal of Neonatal Screening
Understanding whether the long-term follow-up (LTFU) system is working for families is critical to measuring the success of newborn screening (NBS) and understanding why some families are lost to follow-up.
Stacey Quesada, Lauren Barringer, Marci K. Sontag, Yvonne Kellar-Guenther   +3 more
doaj   +1 more source