Stability of the Chari-Pressley-Loktev bases for local Weyl modules of sl2[t]sl_2[t]

We prove stability of the Chari-Pressley-Loktev bases for natural inclusions of local Weyl modules of the current algebra $sl_2[t]$. These modules being known to be Demazure submodules in the level 1 representations of the affine Lie algebra $\widehat{sl_2}$, we obtain, by passage to the direct limit, bases for the level 1 representations themselves.Comment: 20 pages; minor revision

Nutritional strategies in Covid-19 patients with gastrointestinal dysfunction

Nutritional support in infections, including that due to COVID-19, is a key aspect, as it has the potential to limit the severe intensity of inflammation, to modulate optimal immune responses, whilst, limiting the loss of lean-body mass, thereby  promoting enhanced recovery. However, optimal function of the gastrointestinal tract is essential to provide adequate nutrition, with optimal digestion and absorption

ABC Analysis For Inventory Management: Bridging The Gap Between Research And Classroom

ABC analysis is a well-established categorization technique based on the Pareto Principle for determining which items should get priority in the management of a company’s inventory.  In discussing this topic, today’s operations management and supply chain textbooks focus on dollar volume as the sole criterion for performing the categorization.  The authors argue that today’s businesses and supply chains operate in a world where the ability to deliver the right products rapidly to very specific markets is key to survival.  With suppliers, intermediaries, and customers all over the globe, and product lives decreasing rapidly, this focus on a single criterion is misplaced.  The large body of research was summarized based on multiple criteria ABC analysis that has accumulated since the 1980s and recommend that textbooks incorporate their key findings and methods into their discussions of this topic.  Suggestions are offered on how this discussion might be structured

The Treatment of Six Sigma in Introductory Operations Management Textbooks: Clearing Up the Confusion

This paper critically examines the treatment of the statistical basis for Six Sigma and process capability in popular operations management textbooks. It discusses areas of confusion and suggest ways of treating the topic that make sense to instructors as well as students. Even though Six Sigma was introduced almost 30 years ago, misconceptions persist. In the textbooks we have found no consistency of approach or understanding of the statistical underpinnings (3.4 defects per million opportunities) of Six Sigma. Sometimes statements are made that are factually incorrect and cause frustration for students and instructors. Similar difficulties are encountered in discussions of the related concept of process capability. The paper suggests changes that will help resolve these issues and bring much-needed clarity to discussions of these important ideas. Students will find the material much more accessible and instructors will find it much easier to convey the concepts underlying this important topic

ABC Analysis for Inventory Management: Bridging the Gap between Research and Classroom

ABC analysis is a well-established categorization technique based on the Pareto Principle for determining which items should get priority in the management of a company\u27s inventory. In discussing this topic, today\u27s operations management and supply chain textbooks focus on dollar volume as the sole criterion for performing the categorization. The authors argue that today\u27s businesses and supply chains operate in a world where the ability to deliver the right products rapidly to very specific markets is key to survival. With suppliers, intermediaries, and customers all over the globe, and product lives decreasing rapidly, this focus on a single criterion is misplaced. The large body of research was summarized based on multiple criteria ABC analysis that has accumulated since the 1980s and recommend that textbooks incorporate their key findings and methods into their discussions of this topic. Suggestions are offered on how this discussion might be structured