Ribulose 1,5-diphosphate carboxylase is synthesized in barley leaves growing in the dark. Upon illumination there is a marked increase in the rate of synthesis of the enzyme. The specific activity of the enzyme expressed as cpm incorporated into phosphoglyceric acid per mug of fraction I protein, after isolation shows no change either during dark growth or greening. During early stages of illum...

The invasive Asian citrus psyllid (Diaphorina citri Kuwayama) is the vector of the bacterial pathogen (‘Candidatus Liberibacter asiaticus’) that is the putative causal agent of citrus greening disease (Huanglongbing disease) in citrus in many areas of the world. The capacity to predict the potential geographic distribution, phenology and relative abundance of the pest and disease is pivotal to ...

The GREENS workshop provides a forum for practitioners and academics to share knowledge, ideas, practices and current results related to green and sustainable software engineering. This first workshop was held at ICSE 2012 in Zurich, Switzerland. It featured a keynote talk, twelve research position statements and two breakout sessions that discussed topics that ranged from bringing sustainabili...

Seven-day-old dark-grown bean leaves were greened under continuous light. The amount of chlorophyll, the ratio of chlorophyll a to chlorophyll b, the O(2) evolving capacity and the primary photochemical activities of Photosystem I and Photosystem II were measured on the leaves after various times of greening. The primary photochemical activities were measured as the photo-oxidation of P(700), t...

People apply the term ‘the green economy’, to a wide range of activities – everything from cleantech and renewables, to job creation, and public policy. However, the fact remains that there is no standard definition of the green economy. Consequently it is difficult to measure performance and assess progress. Moreover, the narrow approach of defining some economic sectors as ‘green’ and others ...

This paper reports on the analysis of Pathfinder AVHRR land (PAL) data set that spans the period July 1981 to September 1994. The time series of normalized difference vegetation index (NDVI) data for land areas north of 45 N assembled by correcting the PAL data with spectral methods confirms the northerly greening trend and extension of the photosynthetically active growing season. Analysis of ...

The April 2012 Employment Package identified the green economy as a key source of job creation in Europe. According to estimates, implementation of energy efficiency measures could lead to 2 million jobs being created or retained by 2020 and the development of renewable energy sources could lead to 3 million jobs by 2020. . Yet, policies towards greening of the economy may have an impact on emp...

Environmental sustainability can be applied to software systems in two different understandings — either as green in software systems (greening of IT / green IT) or as green through software systems (greening by IT). Currently it is not clear how environmental sustainability can be systematically supported as an objective in requirements engineering for either of these two understandings. This ...

Four-day-old etiolated cucumber cotyledons (Cucumis sativus, L.) were excised and allowed to green in white fluorescent light at 28 C. Cotyledons excised with a full hypocotyl hook exhibited a lag phase of 1 hour before entering the rapid greening phase, whereas cotyledons excised without any hypocotyl hook exhibited a lag phase of 6 hours. Cotyledons excised with varying lengths of hypocotyl h...

Land surface phenology (LSP) characterizes episodes of greening and browning of the vegetated land surface from remote sensing imagery. LSP is of interest for quantification and monitoring of crop yield, wildfire fuel accumulation, vegetation condition, ecosystem response and resilience to climate variability and change. Deriving LSP represents an effort for end users and existing global produc...