Results 61 to 70 of about 1,132,405 (294)

Do species traits determine patterns of wood production in Amazonian forests? [PDF]

open access: yesBiogeosciences, 2009
Understanding the relationships between plant traits and ecosystem properties at large spatial scales is important for predicting how compositional change will affect carbon cycling in tropical forests. In this study, we examine the relationships between
T. R. Baker   +20 more
doaj  

Weathering characteristics of wood treated with water glass, siloxane or DMDHEU [PDF]

open access: yes, 2011
Specimens of Scots pine sapwood (Pinus sylvestris) and beech wood (Fagus sylvatica) were treated with a sodium water glass solution, an amino-alkyl-functional oligomeric siloxane and 1,3-dimethylol-4,5-dihydroxyethylene urea (DMDHEU).
Antje Pfeffer   +2 more
core   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

HOT-WATER EXTRACTION OF GROUND SPRUCE WOOD OF DIFFERENT PARTICLE SIZE

open access: yesBioResources, 2012
Hot-water extraction of hemicelluloses, especially galactoglucomannans, from fractions of ground spruce wood with different particle sizes was studied at 170°C with extraction times up to 60 min.
Tao Song,   +2 more
doaj  

3_D modeling using TLS and GPR techniques to characterize above and below-ground wood distribution in pyroclastic deposits along the Blanco River (Chilean Patagonia) [PDF]

open access: yes, 2016
To date, the study of in-stream wood in rivers has been focused mainly on quantifying wood pieces deposited above the ground. However, in some particular river systems, the presence of buried dead wood can also represent an important component of wood ...
Alvarado, D   +6 more
core  

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng   +4 more
wiley   +1 more source

THE IMPACT OF REFLECTIONS FROM TREES’ TRUNKS ON SIGNAL FORMATION OF RADIO-WAVE DEVICES OF METER RANGE DETECTION IN THE WOODS

open access: yesИзвестия высших учебных заведений. Поволжский регион:Технические науки, 2020
Background. In the procedure of security of state facilities, the urgent task is to detect intruders in the wood. The advanced means of solving this problem is buried radio-wave detectors operating within VHF band.
N. N. Tokarev
doaj   +1 more source

Carbon Storage of Wooden Houses, Trees, and Grazing Land in Rural Areas of Enemorina Ener District, Southern Ethiopia

open access: yesJournal of Natural Resources and Development, 2019
In Ethiopia, wood was the main construction material for rural houses. In 2013, about 79% of the rural houses of Ethiopia were fully made of wood. Although carbon storage of wood is well known for climate change mitigation, there is lack of information ...
Miftah Fekadu   +2 more
doaj   +1 more source

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

open access: yes, 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   +6 more
core  

Notes on the Biology of \u3ci\u3eSaperda Imitans\u3c/i\u3e Infesting Wind-Damaged Black Cherry in Allegheny Hardwood Stands [PDF]

open access: yes, 2018
This paper reports observations made on the life history and biology of Saperda imitans Felt & Joutel in black cherry, Prunus serotina Ehrh. S. imitans was the principle longhorned beetle (Coleoptera: Cerambycidae) reared from bolts collected from 68 ...
Allen, Douglas C   +2 more
core   +2 more sources

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