JOMC: 491/891: Special Topic: News Engagement Lab—A Peer Review of Teaching Project Benchmark Portfolio

This benchmark portfolio analyzes a collaborative elective course offered by the University of Nebraska-Lincoln College of Journalism and Mass Communications in partnership with NET News, the state’s public media organization. The Spring 2016 course offered students hands-on experience creating, implementing and assessing social media content and engagement strategies for NET News. This portfolio showcases the innovative nature of the course while also demonstrating its pedagogical underpinnings. The portfolio provides a broad overview, including course goals and how activities and assignments are aligned with them. Using several assessment strategies, the inquiry focused on the course’s final project, in which students were required to synthesize course concepts and material to develop viable engagement ideas for two NET News projects: a documentary on sex trafficking and coverage of the November 2016 death penalty referendum. In collaboration with UNL’s Office of University Communications, students also were given access to NUVI, a sophisticated social monitoring tool that helped them study prospective audiences. Digital audience engagement is a relatively new concept in the news industry and journalism education, but is gaining importance. The assessment strategies documented in this portfolio may be helpful for journalism educators who are interested in developing similar experiential learning courses in the “teaching hospital” method but desire an effective assessment framework. The portfolio also might serve as a model for journalism educators who want to incorporate audience engagement concepts and practices in new or existing journalism courses to keep up with industry trends and prepare students for new jobs

Embedding for Empathy: Helping Journalism Students Become Better Reporters | Journalism 446/846: Mosaic—A Peer Review of Teaching Project Inquiry Portfolio

As part of Nebraska Mosaic, a senior-level journalism capstone course, students are tasked with interviewing, writing and producing stories for and about refugees and immigrants in Nebraska. But students face a steep learning curve in this experiential learning class. Their knowledge about refugees and immigrants is limited, and they have little understanding of the issues refugees and immigrants face in their new country. Students also have little experience interacting with them, much less interviewing them and writing about them. Using an experiential learning assignment that mimics the journalism practice of embedding, students have an opportunity to develop empathy, gain confidence and improve their reporting, interviewing and writing skills. This inquiry portfolio explores the effectiveness of embedding students in refugee agencies in order to prepare them to report on diverse audiences

Serum Deprivation of Mesenchymal Stem Cells Improves Exosome Activity and Alters Lipid and Protein Composition

Exosomes can serve as delivery vehicles for advanced therapeutics. The components necessary and sufficient to support exosomal delivery have not been established. Here we connect biochemical composition and activity of exosomes to optimize exosome-mediated delivery of small interfering RNAs (siRNAs). This information is used to create effective artificial exosomes. We show that serum-deprived mesenchymal stem cells produce exosomes up to 22-fold more effective at delivering siRNAs to neurons than exosomes derived from control cells. Proteinase treatment of exosomes stops siRNA transfer, indicating that surface proteins on exosomes are involved in trafficking. Proteomic and lipidomic analyses show that exosomes derived in serum-deprived conditions are enriched in six protein pathways and one lipid class, dilysocardiolipin. Inspired by these findings, we engineer an artificial exosome, in which the incorporation of one lipid (dilysocardiolipin) and three proteins (Rab7, Desmoplakin, and AHSG) into conventional neutral liposomes produces vesicles that mimic cargo delivering activity of natural exosomes

Observation of large and all-season ozone losses over the tropics” [AIP Adv. 12, 075006 (2022)]

As discussed above, and supported by extensive literature, there is no robust, credible observational evidence for substantial ozone depletion (i.e., an “ozone hole”) in the tropics. It is well known that climatological total ozone in the tropics is much lower than that in the mid-latitudes (e.g., Sahai et al., 2000; Weber et al., 2022). Satellite and ozonesonde measurements indicate a 3%–5% per decade decline of tropical lower stratosphere ozone prior to 2000, far smaller than that reported by L2022. The stronger decline reported by L2022 is caused by inappropriate use of the gap-filled version of the TOST ozone dataset, which is based on sparse tropical ozone sondes before the 1990s. This misuse of data (TOST and total column ozone) shows the importance of collaboratively engaging with groups who obtain the measurements and create climatological datasets before performing such analyses. Furthermore, the study by L2022 has multiple flaws in its discussion of atmospheric chemistry and dynamics, particularly in the proposed, and previously refuted (see Sec. III A), cosmicray- driven electron induced (CRE) mechanism. Evidence for the occurrence of tropical stratospheric clouds, as needed for the tropical CRE mechanism, is lacking, nor do CFC-12 observations show signatures of depletion in the tropical lower stratosphere, which could be associated with dissociative electron attachment-induced loss of CFC-12 on particulate matter (i.e., the CRE mechanism). Finally, it is worth reiterating that the CRE mechanism is also not responsible for polar LS ozone depletion. Polar ozone loss can be well explained by the gas phase and heterogeneous chemistry, based on extensive observations and modeling studies documented in many thousands of scientific papers on the topic [e.g., see WMO (2018) and references therein], which is not acknowledged by L2022. L2022’s research paper is a severely flawed one. There is no tropical ozone hole, and the CRE mechanism does not explain observed changes in stratospheric ozone either in the polar regions or in the tropics

Internal validation of STRmix™ – A multi laboratory response to PCAST

We report a large compilation of the internal validations of the probabilistic genotyping software STRmix™. Thirty one laboratories contributed data resulting in 2825 mixtures comprising three to six donors and a wide range of multiplex, equipment, mixture proportions and templates. Previously reported trends in the LR were confirmed including less discriminatory LRs occurring both for donors and non-donors at low template (for the donor in question) and at high contributor number. We were unable to isolate an effect of allelic sharing. Any apparent effect appears to be largely confounded with increased contributor number

A database of marine phytoplankton abundance, biomass and species composition in Australian waters

There have been many individual phytoplankton datasets collected across Australia since the mid 1900s, but most are unavailable to the research community. We have searched archives, contacted researchers, and scanned the primary and grey literature to collate 3,621,847 records of marine phytoplankton species from Australian waters from 1844 to the present. Many of these are small datasets collected for local questions, but combined they provide over 170 years of data on phytoplankton communities in Australian waters. Units and taxonomy have been standardised, obviously erroneous data removed, and all metadata included. We have lodged this dataset with the Australian Ocean Data Network (http://portal.aodn.org.au/) allowing public access. The Australian Phytoplankton Database will be invaluable for global change studies, as it allows analysis of ecological indicators of climate change and eutrophication (e.g., changes in distribution; diatom:dinoflagellate ratios). In addition, the standardised conversion of abundance records to biomass provides modellers with quantifiable data to initialise and validate ecosystem models of lower marine trophic levels

The amazing Twitter list race

The goal of this assignment is to show students how curating lists on Twitter can help them discover news sources, monitor what is happening in their community and develop story ideas. They complete the assignment as part of a friendly competition in which each student tries to develop a Twitter list with the most news sources. Students often do not follow local news closely and struggle to come up with strong story ideas. This assignment helps them focus by creating one place where they can keep current on events and be inspired