611 research outputs found
Monitoring Productivity of A UK Dairy System Aiming to Increase Soil Carbon, based on Diverse Swards and Incorporating Mob Grazing
There is interest in increasing soil organic matter (SOM), both to improve plant productivity, and augment carbon sequestration. One practice that may contribute to increasing SOM is a āmob grazingā approach. This involves high stocking density for a short period of time, and often grazing more mature swards, leaving higher cover and longer recovery times between grazings than is typical in the UK. This approach is likely to be best suited to swards that include a wide variety of grass and herb species, giving greater resilience than a purely ryegrass sward. The performance of dairy herds on such swards under this type of management in the UK has not been documented. This paper describes how a participatory approach is used to gather sward and animal production data from a farm where diverse swards and a āmob grazingā system have been developed over seven years, with the aim of increasing the return of organic matter to the soil
Cylindrical wave expansion study
Issued as Monthly progress report [1-13], and Final report, Project no. E-21-60
Self-assembly of a columnar polymeric calcium phosphinate derived from camphene
(2,2-Dimethylbicyclo[2.2.1] hept-3-ylmethyl)phosphinic acid (RPOāHā), readily prepared from camphene and hypophosphorous acid, formed a polymeric calcium salt [{Ca(RPOāH) ā (RPOāHā)(HāO)}n], with both terminal and triply bridging phosphinate groups, and an overall columnar structure with an inorganic core and a pseudo-close-packed sheath of terpene moieties
Ethical Decision Making of Future Mexican Managers
A study to measure ethical decision making of Mexican business students compared to their US counterparts. Results suggest that Mexican studentsā ethical decision-making frameworks differ from those documented by Keller et al. (2007) in their study of US students. Mexican students were not found to be highly religious, but subscribed more to utilitarian, deontological and hermeneutical frameworks for their ethical values. It is suggested that multinational firms doing business in Mexico might want to schedule ethics training of managers and to have a set of standards that employees can follow
Physics of windblown particles
A laboratory facility proposed for the Space Station to investigate fundamental aspects of windblown particles is described. The experiments would take advantage of the environment afforded in earth orbit and would be an extension of research currently being conducted on the geology and physics of windblown sediments on earth, Mars, and Venus. Aeolian (wind) processes are reviewed in the planetary context, the scientific rational is given for specific experiments to be conducted, the experiment apparatus (the Carousel Wind Tunnel, or CWT) is described, and a plan presented for implementing the proposed research program
An Update On Budgetary Participation, Locus Of Control, And The Effects On Mexican Managerial Performance And Job Satisfaction
This study examines the effects of budgetary participation, and the personality variable, locus of control, on the performance and job satisfaction of Mexican managers working for US controlled maquiladoras on the US/Mexican border and within interior Mexico. This study follows the methodology employed by Frucot and Shearon (1991), finds similar empirical results, but reaches quite different interpretations and conclusions. While Frucot and Shearon interpreted their results as suggesting caution in the use of participative budgeting by US companies operating in Mexico, we find that Mexican managers working for US controlled maquiladoras in Mexico may exhibit cultural values much like their US counterparts and that the performance of these Mexican managers may benefit from budgetary participation
IL-21 receptor expression in human tendinopathy
The pathogenetic mechanisms underlying tendinopathy remain unclear,
with much debate as to whether inflammation or degradation has the prominent
role. Increasing evidence points toward and early inflammatory infiltrate and
associated inflammatory cytokine production in human and animal models of
tendon disease.
The IL-21/IL-21R axis is a proinflammatory cytokine complex that has
been associated with chronic inflammatory diseases including rheumatoid
arthritis and inflammatory bowel disease. This project aimed to investigate the
role and expression of the cytokine/receptor pair IL-21/IL-21R in human
tendinopathy.
We found significantly elevated expression of IL-21 receptor message and
protein in human tendon samples but found no convincing evidence of the
presence of IL-21 at message or protein level. The level of expression of IL-21R
message/protein in human tenocytes was significantly up regulated by
proinflammatory cytokines (TNFĪ±/IL-1Ī²) in vitro.
These findings demonstrate that IL-21R is present in early human
tendinopathy mainly expressed by tenocytes and macrophages. Despite a lack of
IL-21 expression these data again suggest that early tendinopathy has an
inflammatory/cytokine phenotype, which may provide novel translational targets
in the treatment of tendinopathy
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