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Conifer pollen tubes are an important but un-derused experimental system in plant biology. They represent a major evolutionary step in male gameto-phyte development as an intermediate form between the haustorial pollen tubes of cycads and Ginkgo and the structurally reduced and faster growing pollen tubes of flowering plants. Conifer pollen grains are(More)
This article responds to the Coalition government's recent Open Public Services White Paper and to proposals which call for the creation of a 'patient-led NHS' which will, wherever possible, seek to give patients direct control over the services they receive, through a greater degree of choice and participation. Its central contention is that affording(More)
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In cycads, spermatozoids are released from pollen tubes and swim in fluid toward the archegonia. The source of this fluid was examined using Cycas revoluta Thunb. ovules placed in culture. Dissected female gametophytes just before fertilization produced copious fluid on their upper surface. The fluid first appeared around the archegonial chamber and then on(More)
In conifers, which have non-saccate Cupressaceae-type pollen, the pollen must land on a pollination drop or be picked up by the pollination drop from the surface of the cone near the ovule before it can be taken into the ovule. After contact with the drop, the pollen intine absorbs moisture from the drop, expands and the exine is shed. In this study the(More)
In this paper we argue that policy calls for personalization or 'tailored' services derive a large part of their appeal from the way they 'fudge together' different things. Using the recent policy discourses surrounding personalization in the UK NHS as a case study we illustrate the policy 'work' that is accomplished by this vagueness and focus in on one(More)
Sacci of conifer pollen do not function primarily to increase the efficiency of wind pollination as is widely thought. Rather, they are bladders and cause pollen to float upwards in a liquid drop into the ovules. This observation is seemingly unsupported in the case of oriental spruce (Picea orientalis (L.) Link), which has saccate pollen. Ovulate cones are(More)
BACKGROUND Health policies internationally advocate 'support for self-management', but it is not clear how the promise of the concept can be fulfilled. OBJECTIVE To synthesize research into professional practitioners' perspectives, practices and experiences to help inform a reconceptualization of support for self-management. DESIGN Critical interpretive(More)
The members of the technical committee selected to monitor this project and to review this document were chosen for their special competencies and with regard for appropriate balance. The opinions and conclusions expressed or implied in this document are those of the researchers who performed the research. They are not necessarily those of the second(More)