Results 81 to 90 of about 9,019 (250)

Suprapermafrost Water: Completion Report [PDF]

open access: yes, 1974
OWRR Contract No. 14-31-0001-9010 Grant No. C-4049The work upon which this completion report is based was supported by funds provided by the US Department of the Interior, Office of Water Resources Research as authorized under the Water Resources ...
Guymon, G. L.
core  

Evaluating Syrphid Fly Predation on Aphids Under Controlled and Field Conditions in High Tunnels: A Comparative Study With Lacewings

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Biological control in high tunnel systems can be optimised by matching predator species to seasonal environmental conditions. We evaluated the predatory efficacy of syrphid flies (Toxomerus marginatus (Say), Eupeodes americanus (Fabricius)) and lacewings (Chrysoperla carnea (Stephens), Chrysoperla rufilabris (Burmeister)) across laboratory ...
Allison Zablah   +3 more
wiley   +1 more source

How to Grow Strawberries in the Home Garden [PDF]

open access: yes, 1958
PDF pages ...
Hill Jr., Robert G., Patterson, Vernon
core  

Historic disturbance events overruled climatic factors as drivers of ruderal species distributions in the Scandinavian mountains

open access: yesNordic Journal of Botany, EarlyView.
The contemporary interaction of climate and disturbance drives vegetation composition and species distribution shifts, making their respective roles difficult to disentangle. This study describes the long‐term ruderal plant species distributions along the ‘Rallarvägen' in Abisko, subarctic Sweden.
Dymphna Wiegmans   +7 more
wiley   +1 more source

A Highly Conserved SNARE‐Associated Protein Enhances Plant Immunity by Regulating Vesicle Trafficking

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT The plant endomembrane system and vesicle trafficking are central to plant immunity, mediating the targeted delivery and recycling of defence molecules during pathogen attack. Here, we investigated the functional role of soybean Vacuole Membrane Protein 1 (GmVMP1) in mediating resistance against soybean cyst nematode (SCN, Heterodera glycines).
Tracy E. Hawk   +15 more
wiley   +1 more source

Induced defence by a root hemiparasite increases host plant resistance against future infection

open access: yesPlant Biology, EarlyView.
Infection by root hemiparasites can increase mortality of parasites during future infection, indicating induced host defence mechanisms. Abstract European grassland plants are frequently attacked by root hemiparasites. However, little is known about host defence responses to parasitism.
S. C. Wanke, D. Matthies
wiley   +1 more source

Non-linear temperature-dependent curvature of a Phase Change Composite Bimorph beam [PDF]

open access: yes, 2017
Bimorph films curl in response to temperature. The degree of curvature typically varies linearly with temperature and in proportion to the difference in thermal expansion of the individual layers.
Blonder, Greg
core  

Frost-heaving pressure in geotechnical engineering materials during freezing process

open access: yesInternational Journal of Mining Science and Technology, 2018
Energy and resources including coal, oil, and gas are in demand all over the world. Because these resources near the earth’s surface have been exploited for many years, the extraction depth has increased.
Pingsheng Wang, Guoqing Zhou
doaj   +1 more source

Freezing colloidal suspensions: Periodic ice lenses and compaction [PDF]

open access: yes, 2014
Recent directional solidification experiments with aqueous suspensions of alumina particles (Anderson & Worster, Langmuir, vol. 28 (48), 2012, pp.
Anderson, AM, Worster, MG
core   +1 more source

Frost heaving forces in Leda Clay

open access: yesCanadian Geotechnical Journal, 1970
The frost heaving forces developed under a 1 ft (30.5 cm) diameter steel plate were measured in the field throughout one winter. The steel plate was fixed at the ground surface with a rock-anchored reaction frame. Heave gauges and thermocouples were installed at various depths to determine the position and temperature of the active heaving zone.The ...
openaire   +3 more sources

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