Program and Proceedings: The Nebraska Academy of Sciences 1880-2010

PROGRAM FRIDAY, APRIL 23, 2010 REGISTRATION FOR ACADEMY, Lobby of Lecture wing, Olin Hall Aeronautics and Space Science, Session A, Olin 249 Aeronautics and Space Science, Session B, Olin 224 Chemistry and Physics, Section A, Chemistry, Olin A Collegiate Academy, Biology Session A, Olin B Collegiate Academy, Chemistry and Physics, Session A, Olin 324 Biological and Medical Sciences, Session A, Olin 112 Biological and Medical Sciences, Session B, Smith Callen Conference Center Chemistry and Physics, Section B, Physics, Planetarium History and Philosophy of Science, Olin 325 Junior Academy, Judges Check-In, Olin 219 Junior Academy, Senior High REGISTRATION, Olin Hall Lobby NWU Health and Sciences Graduate School Fair, Olin and Smith Curtiss Halls Junior Academy, Senior High Competition, Olin 124, Olin 131 Aeronautics and Space Science, Poster Session, Olin 249 Teaching of Science and Math, Olin 325 MAIBEN MEMORIAL LECTURE, OLIN B Dr. Mark Greip, Vice-Chair, Department of Chemistry, University of Nebraska-Lincoln LUNCH, PATIO ROOM, STORY STUDENT CENTER (pay and carry tray through cafeteria line, or pay at NAS registration desk) Aeronautics Group, Conestoga Room Anthropology, Olin 111 Biological and Medical Sciences, Session C, Olin 112 Biological and Medical Sciences, Session D, Smith Callen Conference Center Chemistry and Physics, Section A, Chemistry, Olin A Chemistry and Physics, Section B, Physics, Planetarium Collegiate Academy, Biology Session A, Olin B Collegiate Academy, Biology Session B, Olin 249 Collegiate Academy, Chemistry and Physics, Session A, Olin 324 Junior Academy, Judges Check-In, Olin 219 Junior Academy, Junior High REGISTRATION, Olin Hall Lobby Junior Academy, Senior High Competition, (Final), Olin 110 Earth Science, Olin 224 Junior Academy, Junior High Competition, Olin 124, Olin 131 NJAS Board/Teacher Meeting, Olin 219 Junior Academy, General Awards Presentations, Smith Callen Conference Center BUSINESS MEETING, OLIN B SOCIAL HOUR for Members, Spouses, and Guests First United Methodist Church, 2723 N 50th Street, Lincoln, NE ANNUAL BANQUET and Presentation of Awards and Scholarships First United Methodist Church, 2723 N 50th Street, Lincoln, N

Smart Sensor Technologies for IoT

The recent development in wireless networks and devices has led to novel services that will utilize wireless communication on a new level. Much effort and resources have been dedicated to establishing new communication networks that will support machine-to-machine communication and the Internet of Things (IoT). In these systems, various smart and sensory devices are deployed and connected, enabling large amounts of data to be streamed. Smart services represent new trends in mobile services, i.e., a completely new spectrum of context-aware, personalized, and intelligent services and applications. A variety of existing services utilize information about the position of the user or mobile device. The position of mobile devices is often achieved using the Global Navigation Satellite System (GNSS) chips that are integrated into all modern mobile devices (smartphones). However, GNSS is not always a reliable source of position estimates due to multipath propagation and signal blockage. Moreover, integrating GNSS chips into all devices might have a negative impact on the battery life of future IoT applications. Therefore, alternative solutions to position estimation should be investigated and implemented in IoT applications. This Special Issue, “Smart Sensor Technologies for IoT” aims to report on some of the recent research efforts on this increasingly important topic. The twelve accepted papers in this issue cover various aspects of Smart Sensor Technologies for IoT

Identification of Neurosensory Systems for Nutrient Evaluation and Their Regulatory Roles on Physiology and Lifespan.

Across taxa, exposure to a reduced-nutrient diet without malnutrition, or dietary restriction (DR), delays the onset and progression of physiological and behavioral decline over time. Interestingly, research using the nematode, Caenorhabditis elegans, and the fruit fly, Drosophila melanogaster, has revealed that exposure to food odors is sufficient to limit the benefits of DR on lifespan, suggesting an evolutionarily conserved role for sensory perception on aging. However, knowledge about how sensory information is processed or how it initiates widespread changes in physiology, including aging, remains rudimentary. I hypothesized that neuronal processes that are involved in sensing and evaluating key longevity-modulating nutrients are potent regulators of organismal health and diet-mediated lifespan. I first aimed to understand how one of the key-longevity modulating nutrients, dietary protein, is perceived and initiates widespread changes in physiology. I found that the fruit fly exhibits a transient feeding preference for protein-containing food after modest starvation. I discovered that serotonergic signaling mitigates protein demand by modulating reward associate with protein intake. Moreover, reduced serotonin synthesis or loss of 5HT2a nearly doubled fly lifespan when the animals were maintained in a complex nutritional environment. This suggests a process of nutrient evaluation itself impacts aging. I then aimed to investigate a role of nutrient perception on other aspects of health. Sleep loss in fruit fly is a characteristic response to nutrient deprivation. Because sleep loss is costly to the organism, mechanisms for evaluating the nutrient environment and quickly terminating this behavioral response when food is available would likely to be beneficial. I leveraged this phenotype to discover that perception of sweet taste is sufficient to change the course of behavioral decision from foraging to sleep and dopaminergic circuits in part modulate this behavioral switch. Together my work provides important insights into how nutrients interact with nutrient states of animals and which neurological systems are involved in such interactions. I believe results from my study provides basic framework to examine how nutrient signals are processed in more complex organisms and fosters clinical research to target neurological regulation of nutrient intake or age-associated disease progression.PhDCellular and Molecular BiologyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttps://deepblue.lib.umich.edu/bitstream/2027.42/120898/1/jenro_1.pd

Proceedings of the 94th Annual Virginia Academy of Science Meeting, 2016

Full proceedings of the 94th Annual Virginia Academy of Science Meeting, May 18-20, 2016, at University of Mary Washington, Fredericksburg, VA