1,304 research outputs found
The combined honours student experience survey data and the perceptions of staff and students
Data analysis from the University Student Survey (2016) at Canterbury Christ Church University revealed that combined honours students (n=780) were less satisfied than single honours students. The qualitative comments of the students referred to concerns about identifying with and belonging to the programme; and self confidence. In addition, on one programme (n=89), combined honours student were less satisfied than their single honours classmates on 18 of the 22 USS satisfaction measure statements.
Three focus group with staff on this programme (n=18) and interviews with students (n=8) were undertaken to investigate the issues of lack of satisfaction further.
This paper will report on the ongoing investigation and the potential development of learning and teaching interventions
Effects of feeding rapeseed oil, soybean oil or linseed oil on stearoyl-CoA desturase expression in the mammary gland of dairy cows
Extensive biohydrogenation of dietary fatty acids (FA) occurs in the rumen of dairy cattle, giving rise to a high proportion of saturated FA in milk fat. Saturated FA may contribute to increased risks of cardiovascular disease and the metabolic syndrome (Williams, 2000). Saturated FA, as well as several mono-unsaturated FA, can be desaturated by ΒΏ9-desaturase, also known as stearoyl-CoA desaturase (SCD), present in the mammary gland of dairy cows. It is known that nutrition, especially polyunsaturated FA (PUFA), can affect the expression of SCD in rodents (Ntambi, 1999). Although various FA have been identified which can affect mammary SCD expression in dairy cattle, such knowledge is limited compared with rodents. Therefore, the objective of this study was to investigate the effect of dietary FA supplementation of C18:1 cis-9, C18:2 cis-9,12 or C18:3 cis-9,12,15, by feeding rapeseed oil, soybean oil or linseed oil respectively, or its mixture, on SCD expression in the mammary gland of dairy cows
Killer Yeasts - Cause of Stuck Fermentations in a Wine Cellar
Sluggish fermentations in five fermenters in a wine cellar were investigated. Methylene blue-stains of yeast suspensions revealed that approximately 90% of the total yeast population in each of the fermenters were dead. The viable cells in each fermenter were killer yeasts. Polyacrylamide gel electrophoresis of total soluble cell proteins showed that the same killer yeast occurred in each of the five fermenters. The effect of killer yeast on viability and fermentation activity of the wine yeast was studied in an enriched grape juice medium at 20Β°C and 30Β°C. Death rate of the wine yeast was considerably higher in the presence of the killer yeast and fermentations were retarded at both temperatures. The killer yeast induced flocculation of the non-flocculent wine yeast
Spirit(ed) away: preventing foetal alcohol syndrome with motivational interviewing and cognitve behavioural therapy
Foetal alcohol syndrome (FAS) is a growing concern in South Africa. In the Western Cape, prevalence rates for FAS are the highest in the world. Not surprisingly, the Western Cape also has some of the highest levels of alcohol consumption per capita. Although FAS is primarily caused by alcohol consumption during pregnancy, the high rate of FAS in South Africa originates from a multitude of complex factors. These factors include heritage, poverty, high levels of unemployment and low-paid menial jobs, depression, low self-esteem, low self-efficacy, increased accessibility to alcohol, lack of recreation, poor education, familial pressure, denial, cultural misconceptions and the smaller physiques of some of the women in the Western Cape. Holistic and comprehensive macro- and micro-level approaches are necessary in order to change the alcohol consumption trend that has developed over the last 300 years. No single strategy will reduce or eliminate the burden of alcohol misuse in this society. However, as the presented discussion suggests, combining the spirit of motivational interviewing (MI) with cognitive behavioural therapy (CBT) practice, borrowed from health psychological interventions for lifestyle-related chronic health conditions, holds promise for reducing the prevalence of FAS within Western Cape communities. These individual-based approaches have yet to be employed in South Africa despite the wealth of evidence that demonstrates their potential in targeting high-risk groups and reducing per capita alcohol consumption
COVID-19 Implications for Scenarios and Modelling and Considerations Moving Forward: Perspectives from the Integrated Assessment Modelling Community
Presentation given at the informal virtual meeting hosted by the SBSTA Chair with representatives from the research and systematic observation community and UNFCCC constituted bodies.The event aimed to provide an opportunity for discussing the impact of the COVID-19 crisis on climate research and systematic observation, new opportunities emerging from this crisis for recovering better and what has changed and what needs to change in scientific communication on climate change
An Old Dog Learns Some New Tricks: Ready to Embrace Online Learning with Collaborate
https://digitalcommons.winthrop.edu/weeklyreader/1058/thumbnail.jp
First forcing estimates from the future CMIP6 scenarios of anthropogenic aerosol optical properties and an associated Twomey effect
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We present the first forcing interpretation of the future anthropogenic aerosol scenarios of CMIP6 with the simple plumes parameterisation MACv2-SP. The nine scenarios for 2015 to 2100 are based on anthropogenic aerosol emissions for use in CMIP6 (Riahi et al., 2017; Gidden et al., 2018). We use the emissions to scale the observationally informed anthropogenic aerosol optical properties and the associated effect on the cloud albedo of present-day (Fiedler et al., 2017; Stevens et al., 2017) into the future. The resulting scenarios in MACv2-SP are then ranked according to their strength in forcing magnitude and spatial asymmetries for anthropogenic aerosol. All scenarios, except SSP3-70 and SSP4-60, show a decrease in anthropogenic aerosol by 2100 with a range from 108β% to 36β% of the anthropogenic aerosol optical depth in 2015. We estimate the radiative forcing of anthropogenic aerosol from high- and low-end scenarios in the mid-2090s by performing ensembles of simulations with the atmosphere-only configuration of MPI-ESM1.2. MACv2-SP translates the CMIP6 emission scenarios for inducing anthropogenic aerosol forcing. With the implementation in our model, we obtain forcing estimates for both the shortwave instantaneous radiative forcing (RF) and the effective radiative forcing (ERF) of anthropogenic aerosol relative to 1850. Here, ERF accounts for rapid atmospheric adjustments and natural variability internal to the model. The ERF of anthropogenic aerosol for the mid-2090s ranges from β0.15βWβmβ2 for SSP1-19 to β0.54βWβmβ2 for SSP3-70, i.e. the mid-2090s ERF is 30β%β108β% of the value in the mid-2000s due to differences in the emission pathway alone. Assuming a stronger Twomey effect changes these ERFs to β0.39 and β0.92βWβmβ2, respectively, which are similar to estimates obtained from models with complex aerosol parameterisations. The year-to-year standard deviations around 0.3βWβmβ2 associated with natural variability highlight the necessity to average over sufficiently long time periods for estimating ERF; this is in contrast to RF that is typically well constrained after simulating just 1 year. The scenario interpretation of MACv2-SP will be used within the framework of CMIP6 and other cutting-edge scientific endeavours
First forcing estimates from the future CMIP6 scenarios of anthropogenic aerosol optical properties and an associated Twomey effect
Back to top
We present the first forcing interpretation of the future anthropogenic aerosol scenarios of CMIP6 with the simple plumes parameterisation MACv2-SP. The nine scenarios for 2015 to 2100 are based on anthropogenic aerosol emissions for use in CMIP6 (Riahi et al., 2017; Gidden et al., 2018). We use the emissions to scale the observationally informed anthropogenic aerosol optical properties and the associated effect on the cloud albedo of present-day (Fiedler et al., 2017; Stevens et al., 2017) into the future. The resulting scenarios in MACv2-SP are then ranked according to their strength in forcing magnitude and spatial asymmetries for anthropogenic aerosol. All scenarios, except SSP3-70 and SSP4-60, show a decrease in anthropogenic aerosol by 2100 with a range from 108β% to 36β% of the anthropogenic aerosol optical depth in 2015. We estimate the radiative forcing of anthropogenic aerosol from high- and low-end scenarios in the mid-2090s by performing ensembles of simulations with the atmosphere-only configuration of MPI-ESM1.2. MACv2-SP translates the CMIP6 emission scenarios for inducing anthropogenic aerosol forcing. With the implementation in our model, we obtain forcing estimates for both the shortwave instantaneous radiative forcing (RF) and the effective radiative forcing (ERF) of anthropogenic aerosol relative to 1850. Here, ERF accounts for rapid atmospheric adjustments and natural variability internal to the model. The ERF of anthropogenic aerosol for the mid-2090s ranges from β0.15βWβmβ2 for SSP1-19 to β0.54βWβmβ2 for SSP3-70, i.e. the mid-2090s ERF is 30β%β108β% of the value in the mid-2000s due to differences in the emission pathway alone. Assuming a stronger Twomey effect changes these ERFs to β0.39 and β0.92βWβmβ2, respectively, which are similar to estimates obtained from models with complex aerosol parameterisations. The year-to-year standard deviations around 0.3βWβmβ2 associated with natural variability highlight the necessity to average over sufficiently long time periods for estimating ERF; this is in contrast to RF that is typically well constrained after simulating just 1 year. The scenario interpretation of MACv2-SP will be used within the framework of CMIP6 and other cutting-edge scientific endeavours
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