Dietary alkaloids and the development of androconial organs in Estigmene acrea

Male salt marsh moths, Estigmene acrea (Lepidoptera: Arctiidae), possess inflatable androconial organs called coremata. Prior to mating males form aggregations and inflate their coremata en masse. The communal display attracts additional males and females for the purpose of mating. The coremata are known to carry the plant-derived dihydropyrrolizine, hydroxydanaidal. This pheromonal substance is derived from secondary plant chemicals called pyrrolizidine alkaloids found in the larval diet. When E. acrea larvae were raised on semi-synthetic diets containing different levels of the pyrrolizidine alkaloid precursors the alkaloids triggered a pronounced morphogenetic effect. Adult males that fed on high levels of the pyrrolizidine alkaloid monocrotaline N-oxide (2500 µg) developed the largest coremata. Males that fed on lower levels of monocrotaline N-oxide (500 µg) or no alkaloid, while normal in body weight, had coremata that were progressively smaller and less robust. The size of the coremata and their commensurate pheromonal charge may have behavioral consequences in the unusual mating system of this species

Direct Injection Molding Tooling Inserts from the SLS Process with Copper Polyamide

The "RapidTool" Short Run (SR) Tooling Process using the Copper Polyamide material provides a route to mold inserts for injection molding made directly in the Selective Laser Sintering machine. The STL files for the mold inserts are shelled and conformal cooling lines and ejector pin guides are added before SLS processing. Sintering of the material in the SLS machine provides quick metal/plastic tooling with good thermal conductivity. Final preparation of the tooling inserts includes sealing the surface with epoxy, final finishing using sandpaper, and backing up the shells with a metal alloy. The Copper Polyamide SR Tooling inserts are used to mold several hundred parts with common plastics with injection cycle times similar to conventional molding cycle times.Mechanical Engineerin

A Participatory Exercise in Developing Syllabi with Adult Learners

Access the online Pressbooks version of this article here. Transformative participatory approaches in education are positioned to challenge traditional models where instructors bear all responsibility for knowledge creation and learners are passive recipients of knowledge. The promotion of participatory learning and critical pedagogy is essential to helping professionals seeking to understand oppressive structural barriers and employing strategies to dismantle these structures. This article describes a participatory approach undertaken to guide learners through an exercise to co-create syllabus content in a graduate social work course. Learners identified three themes, concerns, fears, and problems, related to the course material. Learners were also asked to think about how they could address the three themes to apply new information to problem solve. Through the syllabus cloud activity, learners shaped course content, decided on the format to deliver content, and applied their status as adult learners in an intentional way. As educators prepare to critically and intentionally dismantle aspects of the learning milieu that may perpetuate systems of oppression, collaborative learning and teaching can help to reduce oppressive practices. Reflections for formative and summative evaluation and future research are discussed

Language therapy effects on the treated and untreated languages of a multilingual person with aphasia

We administered language treatment in the first language of a multilingual person with aphasia and tested his skills pre- and post-treatment in his additional languages. We report improvement in object and action naming in the treated language (Catalan, the participant’s L1). Small cross-language generalization was found for Spanish, his highly-proficient, early-acquired, L2 as well as for English, his least-proficient language. Improvement was noted not only in items that were translation-equivalents of trained items but also of untrained items. Cognate status did not seem to influence the results

School Inequality: Challenges and Solutions

“Welcome Remarks” were given by Wendy Collins Perdue, Dean of the University of Richmond School of Law, and Dr. Ronald Crutcher, President of the University of Richmond. (9:05 a.m.–9:15 a.m.) “Keynote” by Catherine Lhamon, U.S. Department of Education Assistant Secretary for Civil Rights. (9:15 a.m.–10:00 a.m.) “State-Level School Finance Panel” by Kimberly Robinson, Professor of Law at the University of Richmond School of Law; David Hinojosa, National Director of Policy with the Intercultural Development Research Association (IDRA); and Molly Hunter, Director of the Education Law Center’s Educational Justice program. (10:00 a.m.–11:10 a.m.) “Innovation in Addressing School Inequality Panel” by Lisa Scruggs, Partner with Duane Morris, LLP; Javaid Siddiqi, Director of Hunt-Kean Leadership Fellows at the Hunt Institute; and Jerusha Conner, Associate Professor and Graduate Education Program Coordinator at Villanova University, College of Liberal Arts and Sciences. (11:10 a.m.–12:20 p.m.) “School Discipline Panel” by Jason Nance, Associate Professor of Law and the Associate Director for Education Law and Policy at the Center on Children and Families at the University of Florida Levin College of Law; Marilyn Armour, a University Distinguished Teaching Professor and Director of the Institute for Restorative Justice and Restorative Dialogue at the University of Texas at Austin School of Social Work; Pamela Meanes, Partner at Thompson Coburn LLP and former President of the National Bar Association; and Meredith Harbach, Professor of Law at the University of Richmond School of Law. (1:20 p.m.–2:30 p.m.) Finally, a debate on the role the federal government should hold in the governance of public education featured Preston Green III, the John and Carla Klein Professor of Urban Education and Professor of Educational Leadership and Law at the University of Connecticut (arguing in favor of the federal government having an increased role) and Gerard Robinson, Resident Fellow of Educational Policy Studies at the American Enterprise Institute (arguing against). (2:30 p.m.–3:30 p.m.

Cyberinfrastructure for Preservation of Stream and River Ecology

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Regio

Multi-disciplinary efforts to evaluate the therapeutic potential of CDK11, a novel transcription associated cyclin dependent kinase.

View full abstracthttps://openworks.mdanderson.org/leading-edge/1043/thumbnail.jp

Pearl millet genome sequence provides a resource to improve agronomic traits in arid environments

Pearl millet [Pennisetum glaucum (L.) R. Br., syn. Cenchrus americanus (L.) Morrone], is a staple food for over 90 million poor farmers in arid and semi-arid regions of sub-Saharan Africa and South Asia. We report the ~1.79 Gb genome sequence of reference genotype Tift 23D2B1-P1-P5, which contains an estimated 38,579 genes. Resequencing analysis of 994 (963 inbreds of the highly cross-pollinated cultigen, and 31 wild accessions) provides insights into population structure, genetic diversity, evolution and domestication history. In addition we demonstrated the use of re-sequence data for establishing marker trait associations, genomic selection and prediction of hybrid performance and defining heterotic pools. The genome wide variations and abiotic stress proteome data are useful resources for pearl millet improvement through deploying modern breeding tools for accelerating genetic gains in pearl millet.publishersversionPeer reviewe