Jeu Des Sylphes : Morceau De Salon

https://digitalcommons.library.umaine.edu/mmb-ps/3542/thumbnail.jp

Incidental News Exposure and Algorithmic Governance of Social Media Platforms in Ambient Journalism

The emergence of social media platforms as the leading platform for people to access news has brought essential changes in journalism. People encounter news in a diffuse news environment. The news algorithmic distribution of social media platforms determines the content ecology of people's chance encounter with news, and the problems of information overload, information cocoon, vulgar news, and so on brought by news algorithmic distribution are becoming increasingly prominent. Algorithmic governance as a trend is unstoppable. This study adopts a qualitative research method to focus on the challenges and governance of the algorithmic distribution of news in social media to provide lessons for establishing an excellent online news ecosystem and promoting efficient management of cyberspace

Crafting the Future of Chat Reference: Assessing for Quality in Cooperative Chat Reference

Online reference allows libraries to join cooperatives in which other librarians provide chat reference when local librarians are not available. As the future brings more cross institutional collaboration, how do we know that cooperative chat is effective for our patrons? Librarians developed a rubric to assess chat transcripts for the quality of services provided by librarians outside their institution. Presenters will share the results of their assessment, the steps they took to develop the assessment questions, the rubric used, the assessment process, and lessons learned. Attendees will develop an understanding of how to assess reference for quality to improve services

Butterflies

https://digitalcommons.library.umaine.edu/mmb-ps/3335/thumbnail.jp

Denatonium, torasemide and their transformation products as emerging contaminants in the aquatic environment

The work conducted for this thesis closes knowledge gaps in the context of denatonium, torasemide, and their transformation products as environmental pollutants. Denatonium is one of the bitterest compounds known today, and it is applied in numerous products to prevent an accidental or intentional consumption. Despite its wide application, this is the first study reporting denatonium itself as environmental pollutant. Generally, all water samples taken from WWTP effluents in Italy, Switzerland and from 22 plants in the federal state of Baden-Württemberg, Germany, contained denatonium with a maximum concentration of 341 ng/L. Denatonium is not significantly removed during conventional wastewater treatment and concentrations up to almost 200 ng/L were detected in wastewater-impacted surface waters. When ozonation is applied as advanced treatment technique, up to 74% of an initial denatonium load could be removed from wastewater. However, removal of denatonium was associated here by the formation of at least two polar transformation products (TPs) with unknown toxicological properties. Denatonium can undergo indirect photodegradation and seven TPs were identified for this process. They formed via amide hydrolysis, hydroxylation, N-dealkylation, and N-dearylation. Lidocaine was however the only TP of denatonium detected after conventional wastewater treatment and in surface waters, but the occurrence of this compound was associated with its application as local anesthetic rather than being a degradation product of denatonium. Generally, data presented previously in literature and the results obtained in this study point towards a persistent nature of denatonium and therefore an accumulation of this compound in the environment. Torasemide is an important loop diuretic and it was 2017 one of the ten most prescribed drugs in Germany. Maximum concentrations of this drug measured in this study for WWTPs and surface waters were about 350 ng/L and 70 ng/L, respectively. Despite an already known occurrence of torasemide throughout the urban water cycle, including very low concentrations in drinking water, no studies were performed related to its fate in the environment and an occurrence of TPs so far. Abiotic and biotic degradation experiments were therefore performed and overall sixteen products were identified. The following reaction mechanisms were involved in TP formation: aromatic and aliphatic hydroxylation, including further oxidation to carboxylic acids and quinone imines, amide cleavage, N-dealkylation, N-dearylation, and sulfonamide hydrolysis to sulfonic acids. The formation of quinone imines was in principle of great interest due to their highly reactive nature, but they were not detected in any environmental sample. While both major human metabolites hydroxytorasemide and carboxytorasemide were observed in WWTP influents, hydroxytorasemide seems to be removed during wastewater treatment and was most likely transformed into carboxytorasemide. Carboxytorasemide however was detected in all investigated WWTP effluents and surface waters, with an estimated maximum concentration of 1 µg/L

Mein, dein oder unser „eigenes Kind“? Eigentum als doing property jenseits von Monetarisierung

Was ist das „eigene Kind“? Ein Eigentumsverhältnis? Der ersten Irritation zum Trotz, führe ich die, in meinem qualitativ-empirischen Promotionsprojekt entwickelte, gegenstandsbezogene Theorie zum „eigenen Kind“ mit einer Konzeptualisierung von Eigentum als „doing property“ jenseints von Monetarisierung zusammen.

The IS Undergraduate Curriculum: Predicting Student Outcomes In An Upper Division Programming Course

Academic performance of students is a primary factor in student attrition.  Being able to reliably predict academic success would facilitate improved advising for academic program and course selection.  This study examines several predictor variables and assesses their value in predicting course performance in an upper division computer programming course in an undergraduate business-based Information Systems (IS) degree program