Search results for: Kenneth R Smith

Items from 1 to 6 out of 6 results

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Differences in leaf gas exchange strategies explain Quercus rubra and Liriodendron tulipifera intrinsic water use efficiency responses to air pollution and climate change

Justin M. Mathias, Kenneth R. Smith, Kristin E. Lantz, Keanan T. Allen, more

Global Change Biology > 29 > 12 > 3449 - 3462

Trees continuously regulate leaf physiology to acquire CO₂ while simultaneously avoiding excessive water loss. The balance between these two processes, or water use efficiency (WUE), is fundamentally important to understanding changes in carbon uptake and transpiration from the leaf to the globe under environmental change. While increasing atmospheric CO₂ (iCO₂) is known to increase tree intrinsic...

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Broad-Scale Patterns of Soil Carbon (C) Pools and Fluxes Across Semiarid Ecosystems are Linked to Climate and Soil Texture

Kenneth R. Smith, Bonnie G. Waring

Ecosystems > 2019 > 22 > 4 > 742-753

Dryland (semiarid and arid) ecosystems are responsible for most of the interannual variation in atmospheric CO₂ concentrations and contain a considerable fraction of the globe’s soil carbon (C) stock. Despite their important contribution to the global land C sink, we have a poor mechanistic understanding of the processes that drive C cycling patterns in drylands. In this study in eastern Utah, we...

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Site-level importance of broadleaf deciduous trees outweighs the legacy of high nitrogen (N) deposition on ecosystem N status of Central Appalachian red spruce forests

Kenneth R. Smith, Justin M. Mathias, Brenden E. McNeil, William T. Peterjohn, more

Plant and Soil > 2016 > 408 > 1-2 > 343-356

Background and aims Atmospheric nitrogen (N) deposition can influence forest ecosystem N status, and the resilience of forests to the effects of N deposition depends on a number of co-occurring environmental factors that regulate N retention or loss. In this study, we test the idea that N deposition may have important and long-lasting impacts on patterns of N cycling by using field and laboratory...

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Very early hypothermia induction in patients with severe brain injury (the National Acute Brain Injury Study: Hypothermia II): a randomised trial

Guy L Clifton, Alex Valadka, David Zygun, Christopher S Coffey, more

The Lancet Neurology > 2011 > 10 > 2 > 131-139

The inconsistent effect of hypothermia treatment on severe brain injury in previous trials might be because hypothermia was induced too late after injury. We aimed to assess whether very early induction of hypothermia improves outcome in patients with severe brain injury. The National Acute Brain Injury Study: Hypothermia II (NABIS: H II) was a randomised, multicentre clinical trial of patients...

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Neutron Detection With Gamma-Ray Spectrometers for Border Security Applications

Dean J Mitchell, Lee T Harding, Kenneth R Smith

IEEE Transactions on Nuclear Science > 2010 > 57 > 4-2 > 2215 - 2219

Development of technologies for neutron detection that do not require ³He is important because the supply of ³He is very limited, and the cost of the gas is becoming prohibitive for many applications. This study evaluates the ability to detect neutron sources with gamma-ray spectrometers that are already present in many radiation measurement systems. Detection is based on count rates for gamma rays...

article

Subfrontal Schwannoma with intracranial mucocele: A case report

James H. Boyd, Thomas A. Dalsaso, Christopher S. Bee, Kenneth R. Smith, more

American Journal of Otolaryngology--Head and Neck Medicine and Surgery > 1997 > 18 > 1 > 72-75

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Search results for: Kenneth R Smith

Differences in leaf gas exchange strategies explain Quercus rubra and Liriodendron tulipifera intrinsic water use efficiency responses to air pollution and climate change

Broad-Scale Patterns of Soil Carbon (C) Pools and Fluxes Across Semiarid Ecosystems are Linked to Climate and Soil Texture

Site-level importance of broadleaf deciduous trees outweighs the legacy of high nitrogen (N) deposition on ecosystem N status of Central Appalachian red spruce forests

Very early hypothermia induction in patients with severe brain injury (the National Acute Brain Injury Study: Hypothermia II): a randomised trial

Neutron Detection With Gamma-Ray Spectrometers for Border Security Applications

Subfrontal Schwannoma with intracranial mucocele: A case report

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