129 research outputs found
Emphasizing Learning in the Scholarship of Teaching and Learning
The learning question in the scholarship of teaching and learning focuses on whether the work advances student learning. Although the scope of inquiry may vary, the learning question is, first and foremost, about outcomesâwhat or how much did students learn. It is typified by these kinds of research questions: Did the new teaching method I used produce better learning than the traditional method I have been using; Did the new assignment I used result in better student performance than the one I typically use; Did the strategy our department adopted have a positive effect on student performance in the capstone course; Did our institutional emphasis on critical thinking lead to better thinking among students across the disciplines
Distinct composition and amplification dynamics of transposable elements in sacred lotus (Nelumbo nucifera Gaertn.)
Sacred lotus (Nelumbo nucifera Gaertn.) is a basal eudicot plant with a unique lifestyle, physiological features, and evolutionary characteristics. Here we report the unique profile of transposable elements (TEs) in the genome, using a manually curated repeat library. TEs account for 59% of the genome, and hAT (Ac/Ds) elements alone represent 8%, more than in any other known plant genome. About 18% of the lotus genome is comprised of Copia LTR retrotransposons, and over 25% of them are associated with non-canonical termini (non-TGCA). Such high abundance of non-canonical LTR retrotransposons has not been reported for any other organism. TEs are very abundant in genic regions, with retrotransposons enriched in introns and DNA transposons primarily in flanking regions of genes. The recent insertion of TEs in introns has led to significant intron size expansion, with a total of 200âMb in the 28â455 genes. This is accompanied by declining TE activity in intergenic regions, suggesting distinct control efficacy of TE amplification in different genomic compartments. Despite the prevalence of TEs in genic regions, some genes are associated with fewer TEs, such as those involved in fruit ripening and stress responses. Other genes are enriched with TEs, and genes in epigenetic pathways are the most associated with TEs in introns, indicating a dynamic interaction between TEs and the host surveillance machinery. The dramatic differential abundance of TEs with genes involved in different biological processes as well as the variation of target preference of different TEs suggests the composition and activity of TEs influence the path of evolution
Can climate warming save Daphnia from parasites? Reduced parasite prevalence in Daphnia populations from artificially heated lakes
Climate warming might modify infection outcomes and it has been proposed that temperature increase will result in a âsicker world.â We tested this hypothesis by comparing the prevalence of infection in a common freshwater hostâparasite system (crustacean Daphnia infected with the ichthyosporean pathogen Caullerya mesnili) between five artificially heated lakes and four nearby nonâheated control lakes. The heated lakes, which receive warm water from two power plants, have experienced an elevation in water temperature of ca. 3â4°C for the last 60âyr. Analyses of 5âyr of field data revealed that Daphnia communities from heated lakes had lower parasite prevalence than communities from control sites. To disentangle a possible direct detrimental effect of elevated temperature on the parasite from differences in baseline levels of host resistance, we compared infection susceptibility between Daphnia clones isolated from heated and control lakes, under laboratory conditions at two different temperatures. Daphnia from heated lakes were less susceptible to infection than clones from control lakes, while experimental temperature did not affect infection outcome. The data did not confirm the âwarmer hence sicker worldâ scenario. Instead, it seems that indirect effects of temperature elevation (via shifts in lake hydrology) may restrict its spread into heated lakes. Then, local adaptation to the host from control lakes further inhibits reâestablishment of the parasite from control to heated lakes. Our results underline the contextâdependency of the impact of temperature increase on hostâparasite interactions
Interprofessional Education (IPE) and Pharmacy in the UK: a study on IPE activities across different Schools of Pharmacy
Interprofessional education (IPE) has been recognised internationally, as a way to improve healthcare professional interaction and team working, in order to enhance patient care. Since pharmacists are increasingly part of multi-professional healthcare teams and are expanding their clinical roles, many pharmacy regulators have stipulated IPE must be included in educational curricula. This study aimed to examine how different Schools of Pharmacy (SOPs) in the UK implement IPE within their pharmacy course. Information about IPE was mainly obtained through interviews with staff from various SOPs. Nine telephone interviews were conducted which were analysed using a thematic analysis approach in order to derive common categories. These were identified as students, activities, barriers and facilitators and benefits of IPE. It was found that teaching methods used for IPE varied across SOPs. No standard strategy to deliver IPE was identified. Students were thought to value the IPE experience, especially the interaction with other professionals. The main barriers to implementing IPE arose from limited financial and organisational support. In general many SOPs in the UK are undertaking IPE but challenges remain in establishing it as a routine part of the course, something which seems to echo difficulties in implementation of IPE both nationally and internationall
The effectiveness of âpractice while watchingâ technique for the first aid training of the chemical industry employees
INTRODUCTION: Industrial accidents constitute about 20% of all causes of accidents. They are often sudden, unexpected and may lead to tragic consequences, which however can be partially reduced if first aid and emergency treatment are given as soon as possible. The most important part of a chain of survival is the bystandersâ response. In practice, it is highly dependent on the ability of co-workers to perform basic first-aid tasks. The aim of this paper was to present the effectiveness of âpractice while watchingâ training method for the first aid training of the chemical industry employees. The authors focused on the most important elements of the training, which have an impact on the acquisition of knowledge and skills of first aid.Â
MATERIAL AND METHODS: The training involved 69 employees of the chemical industry. The test sheets were used for the assessment, where each of the action steps was assigned points 0 for incorrect and 1 for a properly performed activity.Â
RESULTS: Each step was completed by at least 76% of workers. When providing both adult and infant CPR, the main difficulty was calling for help. Younger employees obtained better results than older colleagues.Â
CONCLUSIONS: The study demonstrated the high effectiveness of the âpractice while watchingâ method. In addition, workersâ age turned out to be a significant variable which affected their performance.
Combined and single effects of pesticide carbaryl and toxic microcystis aeruginosa on the life history of Daphnia pulicaria
Temperature increase altered Daphnia community structure in artificially heated lakes: a potential scenario for a warmer future
Under conditions of global warming, organisms are expected to track their thermal preferences, invading new habitats at higher latitudes and altitudes and altering the structure of local communities. To fend off potential invaders, indigenous communities/populations will have to rapidly adapt to the increase in temperature. In this study, we tested if decades of artificial water heating changed the structure of communities and populations of the Daphnia longispina species complex. We compared the species composition of contemporary Daphnia communities inhabiting five lakes heated by power plants and four non-heated control lakes. The heated lakes are ca. 3â4 °C warmer, as all lakes are expected to be by 2100 according to climate change forecasts. We also genotyped subfossil resting eggs to describe past shifts in Daphnia community structure that were induced by lake heating. Both approaches revealed a rapid replacement of indigenous D. longispina and D. cucullata by invader D. galeata immediately after the onset of heating, followed by a gradual recovery of the D. cucullata population. Our findings clearly indicate that, in response to global warming, community restructuring may occur faster than evolutionary adaptation. The eventual recolonisation by D. cucullata indicates that adaptation to novel conditions can be time-lagged, and suggests that the long-term consequences of ecosystem disturbance may differ from short-term observations
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