The tame-wild principle for discriminant relations for number fields

Consider tuples of separable algebras over a common local or global number field, related to each other by specified resolvent constructions. Under the assumption that all ramification is tame, simple group-theoretic calculations give best possible divisibility relations among the discriminants. We show that for many resolvent constructions, these divisibility relations continue to hold even in the presence of wild ramification.Comment: 31 pages, 11 figures. Version 2 fixes a normalization error: |G| is corrected to n in Section 7.5. Version 3 fixes an off-by-one error in Section 6.

Zachary Myones, bass clarinet

Benedetto Marcello, arr. Zachary MyonesRobert Kahn, arr. Zachary MyonesJohann Nepomuk Hummel, arr. Zachary Myone

Charter for Change: Stryker’s Journey Towards Sustainability

abstract: Charter for Change: Stryker’s Journey Towards Sustainability is a project focused on brining a holistic sustainability strategy to Stryker’s Sustainability Solutions (Stryker). Stryker is a reprocessor and remanufacturer of single-use medical devices. While the inherent business of reprocessing is sustainable by extending the useful life of devices, there should be alignment between the core of the business, the operations and actions that it takes. Through creating and implementing a sustainability charter that outlines environmental goals for Stryker to achieve by 2025, it provides the organization with a systems approach to sustainability and embeds it within the culture. In order for the project to be successful, Senior Leadership had to sign off and make sustainability a top priority for the organization. The sustainability charter allows Stryker to do well by doing good

Cigarette Litter Prevention at the Virginia Beach Oceanfront

abstract: A city based on tourism, military installations, agriculture, and home to the first landing of Jamestown colonists, Virginia Beach boasts 28 miles of coastline along the Chesapeake Bay and Atlantic Ocean. Comparable to other beaches worldwide, the utter volume of visitors has taken its toll on the city, resulting in unsightly destruction and pollution. It is not unusual to read or hear about marine animals dying from eating or being trapped by waste that is deposited into oceans, or how oil spills are harmful to marine mammals, birds, and fish; yet somehow, it is uncommon to come upon the mentioning of butt litter, the most frequently littered item on Earth. Cigarette butts are strewn about the Virginia Beach boardwalk, resort strip, and the beach. In 2014, Clean Virginia Waterways collected more than 47,600 butts along streams, rivers, bays, and coastlines (CVW, 2015). With no smoking restrictions on the beach (or boardwalk,) tourists and local beachgoers alike frequently discard their butts on the sand and face no known consequences. Small but mighty, both smoked and unsmoked butts have severe impacts on waterways, economies, air quality, and public health. An economic analysis found that cities the size of San Francisco spend, on average, between $500,000 and$6 million annually to keep their beaches, streets, and parks clear of cigarette litter (Schneider et al., 2011). This paper examines strategies to: • Drastically reduce butt litter within the city Disposable/pocket ashtrays, additional butt/ash receptacles • Increase community awareness on the economic impacts of litter Organized cleanups, advertisements/marketing, partnerships with local NGOs • Enhance citations and alternative penalties for those who discard their butts on the sand. Additionally, this paper aims to discuss the potential implementation of a beach-wide smoking ban

Strategic Pest Management Booklets for Farmers in Kaffrine, Senegal

abstract: When Kaffrine, Senegal, is faced with the threat of a locust plague, farmers tend to struggle with determining what actions and when they should take place to prevent a plague from occurring. The inability of farmers to readily identify the early threats of a locust plague is a primary issue that has been affecting communities in Kaffrine for millennia. Locust plagues affect the functionality of Senegal’s ecosystems, the welfare of its social systems, and the peoples’ economic opportunities. The project focuses on the creation of 300 pest identification booklets that provide five villages in Kaffrine the proper education to prevent locust plagues from forming. I have partnered with the Global Locust Initiative (GLI) to help make these booklets come to fruition as the booklets target the lack of early detection awareness that is at the root of locust plagues. By providing the villages with these booklets, the farmers and community members, will be more educated on how to identify and act on the early threats of a plague. Additional outcomes of creating these booklets are as follows: improved well-being of the farming community, increased millet yields, and enhanced global food system sustainability. As locusts are a migratory pest, it is recommended that more stakeholders are provided the proper educational material to help them identify the early threats of a locust plague to prevent negative externalities from being imposed on the surrounding ecology, individuals, and agriculture

Lithic technological responses to Late Pleistocene glacial cycling at Pinnacle Point Site 5-6, South Africa

There are multiple hypotheses for human responses to glacial cycling in the Late Pleistocene, including changes in population size, interconnectedness, and mobility. Lithic technological analysis informs us of human responses to environmental change because lithic assemblage characteristics are a reflection of raw material transport, reduction, and discard behaviors that depend on hunter-gatherer social and economic decisions. Pinnacle Point Site 5-6 (PP5-6), Western Cape, South Africa is an ideal locality for examining the influence of glacial cycling on early modern human behaviors because it preserves a long sequence spanning marine isotope stages (MIS) 5, 4, and 3 and is associated with robust records of paleoenvironmental change. The analysis presented here addresses the question, what, if any, lithic assemblage traits at PP5-6 represent changing behavioral responses to the MIS 5-4-3 interglacial-glacial cycle? It statistically evaluates changes in 93 traits with no a priori assumptions about which traits may significantly associate with MIS. In contrast to other studies that claim that there is little relationship between broad-scale patterns of climate change and lithic technology, we identified the following characteristics that are associated with MIS 4: increased use of quartz, increased evidence for outcrop sources of quartzite and silcrete, increased evidence for earlier stages of reduction in silcrete, evidence for increased flaking efficiency in all raw material types, and changes in tool types and function for silcrete. Based on these results, we suggest that foragers responded to MIS 4 glacial environmental conditions at PP5-6 with increased population or group sizes, 'place provisioning', longer and/or more intense site occupations, and decreased residential mobility. Several other traits, including silcrete frequency, do not exhibit an association with MIS. Backed pieces, once they appear in the PP5-6 record during MIS 4, persist through MIS 3. Changing paleoenvironments explain some, but not all temporal technological variability at PP5-6.Social Science and Humanities Research Council of Canada; NORAM; American-Scandinavian Foundation; Fundacao para a Ciencia e Tecnologia [SFRH/BPD/73598/2010]; IGERT [DGE 0801634]; Hyde Family Foundations; Institute of Human Origins; National Science Foundation [BCS-9912465, BCS-0130713, BCS-0524087, BCS-1138073]; John Templeton Foundation to the Institute of Human Origins at Arizona State Universit

Childhood socioeconomic position and objectively measured physical capability levels in adulthood: a systematic review and meta-analysis

<p><b>Background:</b> Grip strength, walking speed, chair rising and standing balance time are objective measures of physical capability that characterise current health and predict survival in older populations. Socioeconomic position (SEP) in childhood may influence the peak level of physical capability achieved in early adulthood, thereby affecting levels in later adulthood. We have undertaken a systematic review with meta-analyses to test the hypothesis that adverse childhood SEP is associated with lower levels of objectively measured physical capability in adulthood.</p> <p><b>Methods and Findings:</b> Relevant studies published by May 2010 were identified through literature searches using EMBASE and MEDLINE. Unpublished results were obtained from study investigators. Results were provided by all study investigators in a standard format and pooled using random-effects meta-analyses. 19 studies were included in the review. Total sample sizes in meta-analyses ranged from N = 17,215 for chair rise time to N = 1,061,855 for grip strength. Although heterogeneity was detected, there was consistent evidence in age adjusted models that lower childhood SEP was associated with modest reductions in physical capability levels in adulthood: comparing the lowest with the highest childhood SEP there was a reduction in grip strength of 0.13 standard deviations (95% CI: 0.06, 0.21), a reduction in mean walking speed of 0.07 m/s (0.05, 0.10), an increase in mean chair rise time of 6% (4%, 8%) and an odds ratio of an inability to balance for 5s of 1.26 (1.02, 1.55). Adjustment for the potential mediating factors, adult SEP and body size attenuated associations greatly. However, despite this attenuation, for walking speed and chair rise time, there was still evidence of moderate associations.</p> <p><b>Conclusions:</b> Policies targeting socioeconomic inequalities in childhood may have additional benefits in promoting the maintenance of independence in later life.</p&gt

Arizona Dream: Maxime Rossi Meets Max Ernst

abstract: This essay analyses the 22:40 minute video Real Estate Astrology (2015) of Maxime Rossi (born in 1980), a contemporary artist's response to the life and work of the German born surrealist Max Ernst. Rossi sets out in this vide, produced in the color filter technique of anaglyph projection, to search for Ernst’s traces in Sedona, Arizona. The surrealist artist lived here in exile together with his wife, the American painter Dorothea Tanning, from 1946 to 1953. Maxime Rossi shows a predilection for historical artists, whose works he uses as a point of departure in his work, in which historical facts and fiction are inextricably overlapping. In Sedona, Rossi goes to the places Max Ernst is said by locals Rossi has met several times to have visited: a hut where the surrealist is said to have spent the night from time to time, a stick that is said to have belonged to him, a cave with prehistoric mural paintings that he is said to have seen. Eventually, Ernst’s horoscope is said to have predestined a particularly fertile time for him in Arizona. But as we will see, all the tracks prove to be intentionally misplaced traces that confront the viewer with a hallucinatory world that mixes the real with the unreal, historical facts with the fictitious. What ultimately results is a hybrid whole that incorporates different sources and materials and oscillates between the banal and the fantastical, and between fiction and reality. And in doing so, he follows surrealist esthetics and strategies of alienation as we find them especially in Ernst’s collage works. A trans-epochal dialogue between the historical conditions of Ernst’s exile on the one hand, and the actual present on the other, runs through Real Estate Astrology, giving us two periods within the unit of the video

Thomas Gerald and Phoenix Hanes, tuba

John StevensOystein BaadsvikRolph WilhelmJames BarnesTom Holt

Chaz Martineau, jazz saxophone

Warne MarshChaz MartineauCharlie ParkerThelonious Mon