Transcript for Episode 24: For Future Generations: Preamble & Environmental Provisions of 1972 Montana Constitution

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Episode 24: For Future Generations: Preamble & Environmental Provisions of 1972 Montana Constitution

Description to be posted. For more discussion with Mae Nan Ellingson on this topic, view Montana: 1965 to 1980 - Razor Thin Win & For Future Generationshttps://digitalcommons.mtech.edu/crucible_episodes/1023/thumbnail.jp

Assessment of Knack Field Performance Through Precision Field and Laboratory Bioassays in Cotton

When a product performs better or worse than expectations, there are many biological, ecological, and operational factors that must be examined. Genetic resistance to the pesticide itself is often a concern. The control interval depends on the ecological impact of biotic (e.g., presence and function of natural enemies) and abiotic (e.g., frequency and severity of storms) factors. Timing, rates, and application methods used are also key factors affecting product performance. A four-year study to evaluate pyriproxyfen (Knack®) field performance in Arizona was initiated in 2004, after levels of whitefly susceptibility in statewide surveys were observed to be decreasing. Grower sites in Maricopa, Buckeye, Wellton, and Marana were used. We controlled for major operational factors by using a common timing, rate, and aerial application for each Knack spray. Resistance bio-assays were conducted on progeny of field-collected adults, pre- and post-spray. New eggs were marked in-field prior to spraying and examined in the field and lab in order to isolate Knack-associated mortality caused by direct toxicity as well as by ecological factors (e.g., bioresidual). Nymphal bioassays were used to evaluate metamorphosis inhibition. Population trends were estimated using standard sampling methods. Appropriate check plots were compared to the Knack treatment. Study results suggest Knack field performance and pyriproxyfen resistance has not changed significantly among the years or locations examined to date. In 2005, many struggled to gain control over whitefly populations. This work indicated that Knack performance and resistance parameters were within the range expected for the last several years. However, operational and ecological barriers to the performance of Knack and other chemistry were in play. Late planted conditions, lush winter vegetation capable of hosting whiteflies, poor growing conditions, and an extended period of extreme immigration pressure were all factors that diminished the impact of Knack and other products in 2005. In contrast, the winter preceding 2006 was among the driest on record followed by a very active monsoon season in central Arizona. High winds and dust movement, and a very active natural enemy community helped to continually lower whitefly populations. The result was a whitefly season characterized as light, with overall foliar insecticide usage setting a 28-yr record low for Arizona cotton. Barring all other operational and ecological factors at work, control intervals should have been similar each year. Yet, observed intervals have been different (e.g., 2005 vs. 2006) and point to the importance of these external factors in assessing product performance. Work will continue in 2007 to identify factors that contribute to whitefly outbreak conditions. These data will be key to understanding any performance changes, either due to operational or ecological factors mentioned above or due to innate changes in whitefly susceptibility. This will be important in advising growers about the risk factors associated with whitefly outbreaks and should lead to recommendations for minimizing these risks

Performing Mythic Identity:An Analysis and Critiqueof “The Ethnogs”

This article describes and critically examines the process of creating and performing alternative identities associated with a mythic band called “The Ethnogs.” Specifically, the authors tell individual narratives regarding their performances as rock stars, groupies, roadies, and security, and reveal the value of and the personal and institutional risks associated with these performances. The authors conclude by describing a line of scholarship represented by their project that they call “automythography,” the excavation of cultural myths through the critical reading of narrative accounts about a particular period or set of events

Montana ConCon 45 Panel

On the evening of June 16, 1972, at the 45th Reunion of the Montana Constitutional Convention Society, a panel discussion about the Constitution and the Convention was held in the Ed Craney Studios at the Montana Historical Society. Evan Barrett was the moderator for a panel that included six Constitutional Convention Delegates: Bob Campbell, Mick McKeon, Lyle Monroe, Arlyne Reichert, Mae Nan Ellingson, and Roger Wagner

Performing Mythic Identity: An Analysis and Critique of "The Ethnogs"

This article describes and critically examines the process of creating and performing alternative identities associated with a mythic band called "The Ethnogs." Specifically, the authors tell individual narratives regarding their performances as rock stars, groupies, roadies, and security, and reveal the value of and the personal and institutional risks associated with these performances. The authors conclude by describing a line of scholarship represented by their project that they call "automythography," the excavation of cultural myths through the critical reading of narrative accounts about a particular period or set of events

Multivoxel 1H MR spectroscopy is superior to contrast-enhanced MRI for response assessment after anti-angiogenic treatment of orthotopic human glioma xenografts and provides handles for metabolic targeting

Item does not contain fulltextBackground Anti-angiogenic treatment of glioblastoma characteristically results in therapy resistance and tumor progression via diffuse infiltration. Monitoring tumor progression in these patients is thwarted because therapy results in tumor invisibility in contrast-enhanced (CE) MRI. To address this problem, we examined whether tumor progression could be monitored by metabolic mapping using (1)H MR spectroscopic imaging (MRSI). Methods We treated groups of BALB/c nu/nu mice carrying different orthotopic diffuse-infiltrative glioblastoma xenografts with bevacizumab (anti-vascular endothelial growth factor [VEGF] antibody, n = 13), cabozantinib (combined VEGF receptor 2/c-Met tyrosine kinase inhibitor, n = 11), or placebo (n = 15) and compared CE-MRI with MRS-derived metabolic maps before, during, and after treatment. Metabolic maps and CE-MRIs were subsequently correlated to histology and immunohistochemistry. Results In vivo imaging of choline/n-acetyl aspartate ratios via multivoxel MRS is better able to evaluate response to therapy than CE-MRI. Lactate imaging revealed that diffuse infiltrative areas in glioblastoma xenografts did not present with excessive glycolysis. In contrast, glycolysis was observed in hypoxic areas in angiogenesis-dependent compact regions of glioma only, especially after anti-angiogenic treatment. Conclusion Our data present MRSI as a powerful and feasible approach that is superior to CE-MRI and may provide handles for optimizing treatment of glioma. Furthermore, we show that glycolysis is more prominent in hypoxic areas than in areas of diffuse infiltrative growth. The Warburg hypothesis of persisting glycolysis in tumors under normoxic conditions may thus not be valid for diffuse glioma