Improving Online Teaching Effectiveness through Reflection and Collaboration

The purpose of this study was to analyze the impact of active reflection and collaboration as a method to improve teacher effectiveness in the online environment in higher education. While there is no universally accepted definition of effective teaching for higher education, there is research that supports effective online teaching. These principles, paired with research on active reflection and collaboration, provided a foundation for this case study that resulted in determining that active reflection during teaching improved practice

Exploring Podcasting of Required Reading in a Graduate Counseling Course

Podcasting is a relatively unexplored technology tool in education (Hew, 2009). This study explored the integration of podcasting in an onsite graduate counseling course to determine how digital students responded to the integration of podcasting and to determine if podcasting impacts student comprehension of required reading materials. The results indicated that, while students came to class better prepared to discuss the material and enjoyed the podcasts, they preferred traditional teacher-led discussions to the podcasting technology. Key words: podcasting, technology skill

Bottom water acidification and warming on the western Eurasian Arctic shelves: Dynamical downscaling projections

The impacts of oceanic CO2 uptake and global warming on the surface ocean environment have received substantial attention, but few studies have focused on shelf bottom water, despite its importance as habitat for benthic organisms and demersal fisheries such as cod. We used a downscaling ocean biogeochemical model to project bottom water acidification and warming on the western Eurasian Arctic shelves. A model hindcast produced 14–18 year acidification trends that were largely consistent with observational estimates at stations in the Iceland and Irminger Seas. Projections under SRES A1B scenario revealed a rapid and spatially variable decline in bottom pH by 0.10–0.20 units over 50 years (2.5%–97.5% quantiles) at depths 50–500 m on the Norwegian, Barents, Kara, and East Greenland shelves. Bottom water undersaturation with respect to aragonite occurred over the entire Kara shelf by 2040 and over most of the Barents and East Greenland shelves by 2070. Shelf acidification was predominantly driven by the accumulation of anthropogenic CO2, and was concurrent with warming of 0.1–2.78C over 50 years. These combined perturbations will act as significant multistressors on the Barents and Kara shelves. Future studies should aim to improve the resolution of shelf bottom processes in models, and should consider the Kara Sea and Russian shelves as possible bellwethers of shelf acidification