6,539 research outputs found
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Farm business survey 2009/10: horticulture production in England
Thereport gives an overview of the horticultural industry in the United Kingdom, including a snapshot of the different sectors of production, together with other information of interest about the business of horticulture. The data includes the economic perforamnce of horticulture businesses in England during 2009/1
Biological functions of CDK5 and potential CDK5 targeted clinical treatments.
Cyclin dependent kinases are proline-directed serine/threonine protein kinases that are traditionally activated upon association with a regulatory subunit. For most CDKs, activation by a cyclin occurs through association and phosphorylation of the CDK\u27s T-loop. CDK5 is unusual because it is not typically activated upon binding with a cyclin and does not require T-loop phosphorylation for activation, even though it has high amino acid sequence homology with other CDKs. While it was previously thought that CDK5 only interacted with p35 or p39 and their cleaved counterparts, Recent evidence suggests that CDK5 can interact with certain cylins, amongst other proteins, which modulate CDK5 activity levels. This review discusses recent findings of molecular interactions that regulate CDK5 activity and CDK5 associated pathways that are implicated in various diseases. Also covered herein is the growing body of evidence for CDK5 in contributing to the onset and progression of tumorigenesis
Storing fungicides safely
Growers who stocked up on fungicides for the 2005 growing season due to the threat of Asian soybean rust will likely be facing fungicide storage issues this winter, especially since it is likely that most products cannot be returned. The good news is that most fungicides have a shelf life of at least two years--and probably longer--assuming they are stored correctly. Optimum storage conditions are cool, dry conditions, away from sunlight. Storage temperatures should not go below freezing; however, if a fungicide does freeze, then slowly thaw it out at room temperature
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Towards a method for the economic evaluation of environmental indicators in UK Integrated Arable Farming Systems
Integrated Arable Farming Systems (IAFS), which involve a reduction in the use of off-farm inputs, are attracting considerable research interest in the UK. The objectives of these systems experiments are to compare their financial performance with that from conventional or current farming practices. To date, this comparison has taken little account of any environmental benefits (or disbenefits) of the two systems. The objective of this paper is to review the assessment methodologies available for the analysis of environmental impacts. To illustrate the results of this exercise, the methodology and environmental indicators chosen are then applied to data from one of the LINK - Integrated Farming Systems experimental sites. Data from the Pathhead site in Southern Scotland are used to evaluate the use of invertebrates and nitrate loss as environmental indicators within IAFS. The results suggest that between 1992 and 1995 the biomass of earthworms fell by 28 kg per hectare on the integrated rotation and rose by 31 kg per hectare on the conventional system. This led to environmental costs ranging between ÂŁ2.24 and ÂŁ13.44 per hectare for the integrated system and gains of between ÂŁ2.48 and ÂŁ14.88 for the conventional system. In terms of nitrate, the integrated system had an estimated loss of ÂŁ72.21 per hectare in comparison to ÂŁ149.40 per hectare on the conventional system. Conclusions are drawn about the advantages and disadvantages of this type of analytical framework.
Keywords: Farming systems; IAFS; Environmental valuation; Economics; Earthworms; Nitrates; Soil faun
Building bridges: enhancing mentoring skills, knowledge and practice through an online course
This paper outlines the rationale for an open online course for teachers, Enhance your Mentoring Skills, aimed at addressing the UK National Mentor Standards (2016), and describes how this was put into practice. The professional needs of school-based mentors and how these were met in the design for learning are examined alongside a consideration of the efficacy of the curriculum and associated pedagogy of the course. Drawing on the evaluations of 73 teachers who have completed the course in 2017 and their contributions to individual and communal learning activities the paper develops an impression of mentoring practice that represents mentors’ theories-in-use. Teachers’ accounts of the value of the course suggest considerable effect on their levels of confidence and some evidence of impact on their mentoring practice. However, findings also indicate that participants’ understandings of their mentoring role lacks a clearly defined model for mentoring relationships and that mentors welcome greater opportunity to reflect on their practice and to share this with others discursively. The paper discusses the extent to which the course offers a bridge between mentors’ wishes and intentions and how they are realised in practice. Recommendations for future iterations of the course are made, with proposals to develop this case study further, as an instrumental form of theory building (Stake, 1995), in order to better understand how mentors understand and develop their practice
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Integrated Arable Farming Systems and their potential uptake in the UK
Integrated Arable Farming Systems are examined from the perspective of the farmer considering the use of such techniques, and data are presented which suggest that the uptake of the approach may expose the manager to a greater degree of risk. Observations are made about the possible uptake of such systems in the UK and the implications this may have for agricultural and environmental policy in general
Nfix expression critically modulates early B lymphopoiesis and myelopoiesis
The commitment of stem and progenitor cells toward specific hematopoietic lineages is tightly controlled by a number of transcription factors that regulate differentiation programs via the expression of lineage restricting genes. Nuclear factor one (NFI) transcription factors are important in regulating hematopoiesis and here we report an important physiological role of NFIX in B- and myeloid lineage commitment and differentiation. We demonstrate that NFIX acts as a regulator of lineage specification in the haematopoietic system and the expression of Nfix was transcriptionally downregulated as B cells commit and differentiate, whilst maintained in myeloid progenitor cells. Ectopic Nfix expression in vivo blocked early B cell development stage, coincident with the stage of its downregulation. Furthermore, loss of Nfix resulted in the perturbation of myeloid and lymphoid cell differentiation, and a skewing of gene expression involved in lineage fate determination. Nfix was able to promote myeloid differentiation of total bone marrow cells under B cell specific culture conditions but not when expressed in the hematopoietic stem cell (HSPC), consistent with its role in HSPC survival. The lineage choice determined by Nfix correlated with transcriptional changes in a number of genes, such as E2A, C/EBP, and Id genes. These data highlight a novel and critical role for NFIX transcription factor in hematopoiesis and in lineage specification
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