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Nitrogen is a key regulator of primary productivity in many terrestrial ecosystems. Historically, only inorganic N (NH(4)(+) and NO(3)(-)) and L-amino acids have been considered to be important to the N nutrition of terrestrial plants. However, amino acids are also present in soil as small peptides and in D-enantiomeric form. We compared the uptake and(More)
The genetic control of induction to flowering has been studied extensively in both model and crop species because of its fundamental biological and economic significance. An ultimate aim of many of these studies has been the application of the understanding of control of flowering that can be gained from the study of model species, to the improvement of(More)
— A microprocessor implementing IBM S/390 architecture operates in a 10 + 2 way system at frequencies up to 411 MHz (2.43 ns). The chip is fabricated in a 0.2-m L e CMOS technology with five layers of metal and tungsten local interconnect. The chip size is 17.35 mm 2 17.30 mm with about 7.8 million transistors. The power supply is 2.5 V and measured power(More)
Because of the complex architecture of the zSeries ᭨ processors, an internal code, called millicode, is used to implement many of the functions provided by these systems. While the hardware can execute many of the logically less complex and high-performance instructions, millicode is required to implement the more complex instructions, as well as to provide(More)
Keywords: Compound-specific isotope analysis Microbial carbon use efficiency Phospholipid fatty acids Priming Stable carbon isotopes Temperature sensitivity a b s t r a c t Microbial activity has been highlighted as one of the main unknowns controlling the fate and turnover of soil organic matter (SOM) in response to climate change. How microbial community(More)
The use of biochars in agriculture to improve soil function and carbon sequestration is expected to increase into the future. We aimed to identify the most suitable chemical extractants for the risk assessment of potentially toxic element (PTE) availability in biochars produced from a range of feedstocks, and to investigate the changes in PTE extractability(More)
Mechanical biological treatment (MBT) of mixed waste streams is becoming increasingly popular as a method for treating municipal solid waste (MSW). Whilst this process can separate many recyclates from mixed waste, the resultant organic residue can contain high levels of heavy metals and physical and biological contaminants. This review assesses the(More)
The Kinetic Communicator (KINCOM), a microcomputer controlled, hydraulically driven device for the test, measurement, and rehabilitation of human joint function, was tested for the reliability and validity of its operating systems. Testing focused on the three primary functions of the KINCOM: lever arm position, lever arm velocity, and force measuring(More)
Unlike organic pollutants, heavy metals cannot be degraded and can constitute a persistent environmental hazard. Here, we investigated the success of different remediation strategies in promoting microbial diversity and function with depth in an acidic soil heavily contaminated with Cu, Pb and Zn. Remediation involved the incorporation of either a high- or(More)
High levels of heavy metals in soil can ultimately lead to pollution of drinking water and contamination of food. Consequently, sustainable remediation strategies for treating soil are required. The potential ameliorative effect of several composts derived from source-separated and mixed municipal wastes were evaluated in a highly acidic heavily(More)