Results 61 to 70 of about 74,135 (217)

Effects of simultaneous ozone and nitrogen exposure on two tree species : Fagus sylvatica (L.) and Picea abies (L.) Karst. [PDF]

open access: yes, 2005
Tropospheric ozone (O3) and nitrogen deposition (N) are considered as two of the most important anthropogenic pollution factors for temperate forests today.
Thomas, Vera F. D.
core   +1 more source

Pembrolizumab-induced vasculitis demonstrated by FDG-PET/CT

open access: yesRadiology Case Reports
A 76-year-old man with a history of malignant pleural mesothelioma treated with pembrolizumab underwent FDG-PET/CT for restaging. The images demonstrated FDG uptake overlying the right hepatic and splenic artery, which were new from the previous FDG-PET ...
Tuan Vu, BS   +4 more
doaj   +1 more source

Pine Tree and Rocks, [Sketch 3]

open access: yes, 1940
Pencil on cardstock. Bare tree trunk standing in semicircle of stones in right foreground. Large pine in left foreground. One of four pencil sketches Everett Spruce created at John William Rogers’ request.
Spruce, Everett F. (Everett Franklin), 1908-2002
core  

High-Titer Methane from Organosolv-Pretreated Spruce and Birch

open access: yesEnergies, 2017
The negative impact of fossil fuels and the increased demand for renewable energy sources has led to the use of novel raw material sources. Lignocellulosic biomass could serve as a possible raw material for anaerobic digestion and production of biogas ...
Leonidas Matsakas   +4 more
doaj   +1 more source

Insights into the Detoxification of Spruce Monoterpenes by the Eurasian Spruce Bark Beetle

open access: yesInternational Journal of Molecular Sciences
Plant defence mechanisms, including physical barriers like toughened bark and chemical defences like allelochemicals, are essential for protecting them against pests. Trees allocate non-structural carbohydrates (NSCs) to produce secondary metabolites like monoterpenes, which increase during biotic stress to fend off pests like the Eurasian spruce bark ...
Aisha Naseer   +6 more
openaire   +2 more sources

Pine Tree and Rocks, [Sketch 4]

open access: yes, 1940
Pencil on cardstock. Large pine tree in foreground; path or road to the left; additional rocks and trees in the background. One of four pencil sketches Everett Spruce created at John William Rogers’ request.
Spruce, Everett F. (Everett Franklin), 1908-2002
core  

Impregnation of Norway spruce (Picea abies L. Karst.) wood with hydrophobic oil [PDF]

open access: yes, 2006
The overall goal of this thesis was to develop new knowledge to facilitate the production of Norway spruce wood-based materials that are more durable and more homogenous than current materials by using a hydrophobic oil impregnation process). Linseed oil
Ulvcrona, Thomas
core  

The Man and the Myth – Robert Smith-Barry as ‘The Man Who Taught the World to Fly’

open access: yesAir and Space Power Review
Today, the Smith-Barry Academy is a training facility within the Central Flying School of the Royal Air Force (RAF). Based in the Trenchard Building at RAF Cranwell, the academy is responsible for researching new training methodologies.
David Spruce
doaj  

Resin canals in spruce (Picea abis /L./ Karst.) with the occurrence of reaction wood

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2005
The paper was aimed at the determination of variability of horizontal resin canal dimension in spruce wood in relation to the position in a spruce stem.
Vladimír Gryc, Petr Horáček
doaj   +1 more source

[Loose individual sketches]

open access: yes, 1939
Individual sketches originally found in small sketchbook containing pencil sketches by Everett Spruce (Spruce Spiral Sketch Book brand sketchbook.
Spruce, Everett F. (Everett Franklin), 1908-2002
core  

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