UH Research Archive: Recent submissions
Now showing items 1881-1900 of 11139
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Temperature sensitivity of organic matter decomposition in two boreal forest soil profiles
(2010-01-01)Controversial conclusions from different studies suggest that the decomposition of old soil organic matter (SOM) is either more, less, or equally temperature sensitive compared to the younger SOM. Based on chemical kinetic ... -
Temperature sensitivity of soil carbon fractions in boreal forest soil
(2010-02-01)Feedback to climate warming from the carbon balance of terrestrial ecosystems depends critically on the temperature sensitivity of soil organic carbon (SOC) decomposition. Still, the temperature sensitivity is not known ... -
Transplantation of organic surface horizons of boreal soils into warmer regions alters microbiology but not the temperature sensitivity of decomposition
(2009-12-16)Changes in soil carbon, the largest terrestrial carbon pool, are critical for the global carbon cycle, atmospheric CO2 levels and climate. Climate warming is predicted to be most pronounced in the northern regions and ... -
Decomposition and changes in chemical composition of leaf litter of five dominant tree species in a West African tropical forest
(2014-05)The objective of the research was to study the rate of decomposition and changes in the chemical characteristics in the leaf litter of selected tree species using a litterbag experiment. The decomposition of leaf litter ... -
Use of alcohol hand rub (AHR) at ward entrances and use of soap and AHR by patients and visitors: a study in 27 wards in nine acute NHS trusts
(2011-03-01)Ward procurement of hand hygiene consumables is a proxy measure of hand hygiene compliance. The proportion of this due to use of alcohol hand rub (AHR) at ward entrances, and bedside use of consumables by patients and ... -
Technical note: Assessment of blinding of hand hygiene observers in randomized controlled trials of hand hygiene interventions
(2010-05-01)Trials evaluating interventions to improve health care workers’ hand hygiene compliance use directly observed compliance as a primary outcome measure. Observers should be blinded to the intervention and the effectiveness ... -
The dirty hand in the latex glove.” A study of hand hygiene compliance when gloves are worn.
(2011-12-01)Background and objective. Wearing of gloves reduces transmission of organisms by healthcare workers’ hands but is not a substitute for hand hygiene. Results of previous studies have varied as to whether hand hygiene is ... -
How do osteoporosis patients perceive their illness and treatment? Implications for clinical practice
(2012-12-01)Summary Non-adherence inhibits successful treatment of osteoporosis. This study used a theoretical framework to explore osteoporosis patients' cognitive and emotional representations of their illness and medication, using ... -
Development of Chemical Sensors for Rapid Identification of Amphetamine-Related New Psychoactive Substances
(2017-03-09)A molecular receptor for mephedrone, an amphetamine-like NPS, was developed using host-guest chemistry and pharmacophoric design. The in-field detection of new psychoactive substances (NPS) is an area that has garnered ... -
Old soil carbon is more temperature sensitive than the young in an agricultural field
(2007-11-01)Changes in the carbon stock of soil in response to climate change would significantly affect the atmospheric carbon dioxide concentration and consequently climate. The isotopes of carbon provide a means to study the ... -
Heterotrophic soil respiration-Comparison of different models describing its temperature dependence
(2008-02-24)Several models are used to describe the temperature dependence of heterotrophic soil respiration. Six such models are examined here in detail against incubation measurements from different sources. These models are compared ... -
Molecular sieve sampling of CO2 from decomposition of soil organic matter for AMS radiocarbon measurements
(2010-04-01)A molecular sieve based procedure has been established for sampling CO2 of decomposing soil organic matter for AMS radiocarbon measurements. The sampling and desorption lines are capable to produce well measurable (>1 mg) ... -
Wood decomposition model for boreal forests
(2011-02-10)The decomposition of woody litter is a biochemical process, controlled by physical, chemical and biological environmental conditions. To develop a practicable model of this complex process, it is necessary to identify the ... -
The Yasso07 soil carbon model - Testing against repeated soil carbon inventory
(2012-12-15)Forest soils store large amounts of carbon (C), and releases of C from this pool may significantly increase the CO 2 concentration in the atmosphere. Organic matter decomposition in soils has been shown to strongly depend ... -
Soil carbon model Yasso07 graphical user interface
(2011-11-01)In this article, we present a graphical user interface software for the litter decomposition and soil carbon model Yasso07 and an overview of the principles and formulae it is based on. The software can be used to test the ... -
Impacts of organic amendments on carbon stocks of an agricultural soil - Comparison of model-simulations to measurements
(2012-11-01)Organic amendments such as straw, green manure or farmyard manure are used to mitigate the soil carbon (C) losses from cultivated soils. We investigated the role of various organic amendments with different C quality for ... -
Organic Chemical Characterization of Decomposing Plant Litter : A Comparison of Methods
(2013-12-16)There are two common methods to characterize organic chemical composition of decomposing plant litter, a forest products method and a forage fiber method. These methods divide litter into a few fractions based on extractions ... -
Carbon stock changes of forest land in Finland under different levels of wood use and climate change
(2014-03-01)•Context: Prediction of the effect of harvests and climate change (CC) on the changes in carbon stock of forests is necessary both for CC mitigation and adaptation purposes. •Aims: We assessed the impact of roundwood and ... -
Signals embedded in the radial velocity noise
(EDP Sciences, 2013-04-25)Bayesian data analysis techniques, together with suitable statistical models, can be used to obtain much more information from noisy data than the traditional frequentist methods. For instance, when searching for periodic ... -
Fighting Relativism: Wittgenstein and Kuhn
(Walter de Gruyter, 2017-03)As Ilham Dilman puts it: 'language is the source of the system we find in nature'. There is no conception of reality independent of language. There are at least three problems with this – Kuhn's and Wittgenstein's – way ...