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Articles 1441 - 1470 of 9095
Full-Text Articles in Entire DC Network
Microseismic Evidence For Bookshelf Faulting In Western Montana, Ellen Mcgough Smith
Microseismic Evidence For Bookshelf Faulting In Western Montana, Ellen Mcgough Smith
Graduate Student Theses, Dissertations, & Professional Papers
One of the most seismically active regions in the western United States, far from any major plate boundary, is the Intermountain Seismic Belt (ISB). On 6 July 2017, a M5.8 earthquake occurred 11 km southeast of Lincoln, Montana within the ISB. This was the largest earthquake to occur in the state of Montana since the 1959 M7.3 Hebgen Lake earthquake. Data from the University of Montana Seismic Network (UMSN), the Montana Regional Seismic Network (MRSN), and the United States Geological Survey (USGS) were used to investigate the aftershock sequences following the M5.8 Lincoln event. We have manually picked P- and …
Understanding And Measuring Net Positive Business Strategies, Luke Ruffner Robinson
Understanding And Measuring Net Positive Business Strategies, Luke Ruffner Robinson
Graduate Student Theses, Dissertations, & Professional Papers
Despite their attempts to mitigate ecological impacts through sustainability initiatives, businesses are a major cause of the world's ecological problems. Some progressive businesses are attempting to move beyond “net zero” in terms of achieving neutral environmental impacts and instead are now pursuing a goal of net positive. Net positive refers to the idea that business activities could contribute value-added benefits to earth’s ecological systems, for example, by using technologies that sequester and store carbon. However, except for a handful of high-profile corporate case studies, little is known about how companies are developing their strategies to become net positive and …
University Of Montana Commencement Program, Fall 2019, University Of Montana--Missoula. Office Of The Registrar
University Of Montana Commencement Program, Fall 2019, University Of Montana--Missoula. Office Of The Registrar
University of Montana Commencement Programs, 1898-2020
Commencement program from the University of Montana.
Oh Chemistry Of Non-Methane Organic Gases (Nmogs) Emitted From Laboratory And Ambient Biomass Burning Smoke: Evaluating The Influence Of Furans And Oxygenated Aromatics On Ozone And Secondary Nmog Formation, Matthew M. Coggon, Christopher Y. Lim, Abigail R. Koss, Kanako Sekimoto, Bin Yuan, Jessica B. Gilman, David H. Hagan, Vanessa Selimovic, Kyle J. Zarzana, Steven S. Brown, James M Roberts, Markus Müller, Robert Yokelson, Armin Wisthaler, Jordan E. Krechmer, Jose L. Jimenez, Christopher Cappa, Jesse H. Kroll, Joost De Gouw, Carsten Warneke
Oh Chemistry Of Non-Methane Organic Gases (Nmogs) Emitted From Laboratory And Ambient Biomass Burning Smoke: Evaluating The Influence Of Furans And Oxygenated Aromatics On Ozone And Secondary Nmog Formation, Matthew M. Coggon, Christopher Y. Lim, Abigail R. Koss, Kanako Sekimoto, Bin Yuan, Jessica B. Gilman, David H. Hagan, Vanessa Selimovic, Kyle J. Zarzana, Steven S. Brown, James M Roberts, Markus Müller, Robert Yokelson, Armin Wisthaler, Jordan E. Krechmer, Jose L. Jimenez, Christopher Cappa, Jesse H. Kroll, Joost De Gouw, Carsten Warneke
Chemistry and Biochemistry Faculty Publications
Chamber oxidation experiments conducted at the Fire Sciences Laboratory in 2016 are evaluated to identify important chemical processes contributing to the hydroxy radical (OH) chemistry of biomass burning non-methane organic gases (NMOGs). Based on the decay of primary carbon measured by proton transfer reaction time-of-flight mass spectrometry (PTR-ToF-MS), it is confirmed that furans and oxygenated aromatics are among the NMOGs emitted from western United States fuel types with the highest reactivities towards OH. The oxidation processes and formation of secondary NMOG masses measured by PTR-ToF-MS and iodide-clustering time-of-flight chemical ionization mass spectrometry (I-CIMS) is interpreted using a box model employing …
December 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
December 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
University of Montana News Releases, 1928, 1956-present
No abstract provided.
Helium In Stream Water As A Volcanic Monitoring Tool, W. Payton Gardner, David D. Susong
Helium In Stream Water As A Volcanic Monitoring Tool, W. Payton Gardner, David D. Susong
Geosciences Faculty Publications
We show that synoptic sampling of streams can be used to characterize volcanic volatiles in groundwater over large spatial scales. Synoptic sampling of dissolved noble gases, 222Rn, major ions, and stream discharge was carried out along a 30 km reach of the Gibbon River, near Norris Geyser Basin in Yellowstone National Park, USA. Groundwater discharge location, volume, and composition were estimated by constrained calibration of a stream flow and solute transport model. Estimated groundwater composition from stream modeling was compared to shallow groundwater concentrations measured in nearby springs. 3He, 222Rn, and Cl− aq signatures in the Gibbon River are indicative …
Isotopic Characterization Of Nitrogen Oxides (NoX), Nitrous Acid (Hono), And Nitrate (PNo3-) From Laboratory Biomass Burning During Firex, Jiajue Chai, David J. Miller, Eric Scheuer, Jack Dibb, Vanessa Selimovic, Robert Yokelson, Kyle K. Zarzana, Steven Brown, Abigail R. Koss, Carsten Warneke, Meredith Hastings
Isotopic Characterization Of Nitrogen Oxides (NoX), Nitrous Acid (Hono), And Nitrate (PNo3-) From Laboratory Biomass Burning During Firex, Jiajue Chai, David J. Miller, Eric Scheuer, Jack Dibb, Vanessa Selimovic, Robert Yokelson, Kyle K. Zarzana, Steven Brown, Abigail R. Koss, Carsten Warneke, Meredith Hastings
Chemistry and Biochemistry Faculty Publications
New techniques have recently been developed and applied to capture reactive nitrogen species, including nitrogen oxides (NOx D NOCNO2), nitrous acid (HONO), nitric acid (HNO3), and particulate nitrate (pNO3 ), for accurate measurement of their isotopic composition. Here, we report – for the first time – the isotopic composition of HONO from biomass burning (BB) emissions collected during the Fire Influence on Regional to Global Environments Experiment (FIREX, later evolved into FIREX-AQ) at the Missoula Fire Science Laboratory in the fall of 2016. We used our newly developed annular denuder system (ADS), which was verified to completely capture HONO associated …
Natural Disasters: Resource Lists, Hilary Martens
Natural Disasters: Resource Lists, Hilary Martens
Open Educational Resources (OER) at University of Montana
This record includes a syllabus, unit-by-unit lists of open and free resources, a course project description, and additional, optional resources used in a course on natural disasters. The course covers plate tectonics, earthquakes, volcanoes, tsunamis, tornadoes, hurricanes, climate change, floods, fires, landslides, avalanches, and impacts with space objects.
Department Of Mathematical Sciences Newsletter, Fall 2019, University Of Montana--Missoula. Department Of Mathematical Sciences
Department Of Mathematical Sciences Newsletter, Fall 2019, University Of Montana--Missoula. Department Of Mathematical Sciences
Newsletters from the Department of Mathematical Sciences at UM
Interview with Marylesa Howard / John Bardsley -- Summer Research: Moves on Higher-Rank Graphs / Elizabeth Gillaspy -- Emma B. Lommasson 1911-2019 -- Notes from the Chair / Emily Stone -- UM’s Math Learning Center Grows to the Benefit of Students (and Tutors) / Rick Darnell -- Math Day 2019 / Fred Peck -- Pizza & Problems / Daniel Gent
K- Theory For Concrete C*-Algebras, Elizabeth A. Gillaspy
K- Theory For Concrete C*-Algebras, Elizabeth A. Gillaspy
University Grant Program Reports
In broad strokes, the objective of the research undertaken via this grant is to increase our understanding of the mathematical objects known as C*-algebras, by exploring the structure of certain C*-algebras arising from relatively concrete data.
Development Of Probabilistic Cardinal Models, Oliver Serang
Development Of Probabilistic Cardinal Models, Oliver Serang
University Grant Program Reports
Cardinal models solve problems of the form Y=X_1+X_2+...+X_n, where we have discrete distributions on each random variable. The objective was to improve the usability and performance of Evergreen, an engine for solving cardinal models and to create cardinal models using them.
Wild 346.01: Wildlife Physiological Ecology, Cerisse E. Allen
Wild 346.01: Wildlife Physiological Ecology, Cerisse E. Allen
University of Montana Course Syllabi, 2016-2020
No abstract provided.
Wild 105n.01: Wildlife And People, Brittany A. Garner
Wild 105n.01: Wildlife And People, Brittany A. Garner
University of Montana Course Syllabi, 2016-2020
No abstract provided.
Nrsm 385.01: Watershed Hydrology, Kevin D. Hyde
Nrsm 385.01: Watershed Hydrology, Kevin D. Hyde
University of Montana Course Syllabi, 2016-2020
No abstract provided.
Fors 340.00: Forest Products Manufacturing, Edwin J. Burke
Fors 340.00: Forest Products Manufacturing, Edwin J. Burke
University of Montana Course Syllabi, 2016-2020
No abstract provided.
Nepal Ambient Monitoring And Source Testing Experiment (Namaste): Emissions Of Particulate Matter And Sulfur Dioxide From Vehicles And Brick Kilns And Their Impacts On Air Quality In The Kathmandu Valley, Nepal, Min Zhong, Eri Saikawa, Alexander Avramov, Chen Chen, Boya Sun, Wenlu Ye, William C. Keene, Robert J. Yokelson, Thilina Jayarathne, Elizabeth A. Stone, Maheswar Rupakheti, Arnico K. Panday
Nepal Ambient Monitoring And Source Testing Experiment (Namaste): Emissions Of Particulate Matter And Sulfur Dioxide From Vehicles And Brick Kilns And Their Impacts On Air Quality In The Kathmandu Valley, Nepal, Min Zhong, Eri Saikawa, Alexander Avramov, Chen Chen, Boya Sun, Wenlu Ye, William C. Keene, Robert J. Yokelson, Thilina Jayarathne, Elizabeth A. Stone, Maheswar Rupakheti, Arnico K. Panday
Chemistry and Biochemistry Faculty Publications
Air pollution is one of the most pressing environmental issues in the Kathmandu Valley, where the capital city of Nepal is located. We estimated emissions from two of the major source types in the valley (vehicles and brick kilns) and analyzed the corresponding impacts on regional air quality. First, we estimated the on-road vehicle emissions in the valley using the International Vehicle Emissions (IVE) model with local emissions factors and the latest available data for vehicle registration. We also identified the locations of the brick kilns in the Kathmandu Valley and developed an emissions inventory for these kilns using emissions …
June 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
June 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
University of Montana News Releases, 1928, 1956-present
No abstract provided.
University Of Montana Commencement Program, Spring 2019, University Of Montana--Missoula. Office Of The Registrar
University Of Montana Commencement Program, Spring 2019, University Of Montana--Missoula. Office Of The Registrar
University of Montana Commencement Programs, 1898-2020
Commencement program from the University of Montana.
Conservation Education: Using Birds To Connect Communities To Their Natural Environment, Kathryn A. Olson
Conservation Education: Using Birds To Connect Communities To Their Natural Environment, Kathryn A. Olson
Graduate Student Portfolios, Professional Papers, and Capstone Projects
The theme of my portfolio is conservation education, using birds as an example of how to connect people of all ages to their natural environment. Birds were chosen as an example because of a personal curiosity for the animal, and because they are an accessible and tangible element of nature for all people, urban and rural. The first component is a Curriculum Development Guide created for the Wings Over Water program of the Montana Natural History Center. It synthesizes scientific research on Ospreys, relates central themes of the literature to Next Generation Science Standards (NGSS) and provides inventive activity ideas …
May 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
May 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
University of Montana News Releases, 1928, 1956-present
No abstract provided.
Developing Proportional Reasoning Through Gears Investigation, Colt J. Davidson
Developing Proportional Reasoning Through Gears Investigation, Colt J. Davidson
University of Montana Conference on Undergraduate Research (UMCUR)
The understanding of ratio and the ability to use proportional reasoning are essential to a middle school student’s future success in the fields of math and science. For a student to achieve proficiency in this domain, they must be introduced to a variety of interpretations of rational number concepts. It was my objective in this research to help understand if students can learn these concepts through the investigation of gears as a model for proportional relationships. This research attempted to answer two primary questions through an intervention. Does structured investigation of gear-pairs lead to students’ ability to abstract ratio settings? …
Department Of Mathematical Sciences Newsletter, Spring 2019, University Of Montana--Missoula. Department Of Mathematical Sciences
Department Of Mathematical Sciences Newsletter, Spring 2019, University Of Montana--Missoula. Department Of Mathematical Sciences
Newsletters from the Department of Mathematical Sciences at UM
Johnny Lott Receives NCTM Lifetime Achievement Award / Fred Peck -- Study Abroad & an Internship: Making the Most of My Degree in Mathematics / Megan Finley -- Notes from the Chair / Emily Stone -- #Latina #UM #Research #Montana #PR #MathEd #Yauco #Boricua / Ricela Feliciano-Semidel -- Spring 2019 Scholarship and Award Winners -- Honor Roll of Donors -- Degree Recipients 2018-19 -- First Annual Montana High School Mathematics Awards / Emily Stone
Production Of Secondary Organic Aerosol During Aging Of Biomass Burning Smoke From Fresh Fuels And Its Relationship To Voc Precursors, A. T. Ahern, E. S. Robinson, D. S. Tkacik, R. Saleh, L. E. Hatch, K. C. Barsanti, C. E. Stockwell, R. J. Yokelson, A. A. Presto, A. L. Robinson, R. C. Sullivan, N. M. Donahue
Production Of Secondary Organic Aerosol During Aging Of Biomass Burning Smoke From Fresh Fuels And Its Relationship To Voc Precursors, A. T. Ahern, E. S. Robinson, D. S. Tkacik, R. Saleh, L. E. Hatch, K. C. Barsanti, C. E. Stockwell, R. J. Yokelson, A. A. Presto, A. L. Robinson, R. C. Sullivan, N. M. Donahue
Chemistry and Biochemistry Faculty Publications
After smoke from burning biomass is emitted into the atmosphere, chemical and physical processes change the composition and amount of organic aerosol present in the aged, diluted plume. During the fourth Fire Lab at Missoula Experiment, we performed smog-chamber experiments to investigate formation of secondary organic aerosol (SOA) and multiphase oxidation of primary organic aerosol (POA). We simulated atmospheric aging of diluted smoke from a variety of biomass fuels while measuring particle composition using high-resolution aerosol mass spectrometry. We quantified SOA formation using a tracer ion for low-volatility POA as a reference standard (akin to a naturally occurring internal standard). …
In Situ Measurements Of Trace Gases, Pm, And Aerosol Optical Properties During The 2017 Nw Us Wildfire Smoke Event, Vanessa Selimovic, Robert J. Yokelson, Gavin R. Mcmeeking, Sarah Coefield
In Situ Measurements Of Trace Gases, Pm, And Aerosol Optical Properties During The 2017 Nw Us Wildfire Smoke Event, Vanessa Selimovic, Robert J. Yokelson, Gavin R. Mcmeeking, Sarah Coefield
Chemistry and Biochemistry Faculty Publications
In mid-August through mid-September of 2017 a major wildfire smoke and haze episode strongly impacted most of the NW US and SW Canada. During this period our ground-based site in Missoula, Montana, experienced heavy smoke impacts for ∼ 500h (up to 471μ-3 hourly average PM2.5). We measured wildfire trace gases, PM2.5 (particulate matter ≤2.5μm in diameter), and black carbon and submicron aerosol scattering and absorption at 870 and 401nm. This may be the most extensive real-time data for these wildfire smoke properties to date. Our range of trace gas ratios for δNH3 δCO and δC2H4 δCO confirmed that the smoke …
March 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
March 2019 News Releases, University Of Montana--Missoula. Office Of University Relations
University of Montana News Releases, 1928, 1956-present
No abstract provided.
Math Anxiety Among Teachers And Its Impact On Students’ Math Ability, Elina Bergund F
Math Anxiety Among Teachers And Its Impact On Students’ Math Ability, Elina Bergund F
UM Graduate Student Research Conference (GradCon)
Fear and anxiety about math can impede an individual’s math achievement, and math anxious people tend to perform worse than their abilities would indicate. When self-doubt and distress occurs, thinking and reasoning can be compromised. In fact, the fears that individuals with math-anxiety experience when they are forced to do math often prevent them from using their knowledge (Ashcraft & Kirk, 2001; Beilock, Gunderson, Ramirez, & Levince, 2010; Chipman, Krantz, & Silver, 1992). Math anxiety is more common among women than men and tends to manifest itself as an unpleasant emotional response to math or the prospect of doing math …
De Novo Origins Of Multicellularity In Response To Predation, Matthew D. Herron, Joshua M. Borin, Jacob C. Boswell, Jillian Walker, I. Chen Kimberly Chen, Charles A. Knox, Margrethe Boyd, Frank Rosenzweig, William C. Ratcliff
De Novo Origins Of Multicellularity In Response To Predation, Matthew D. Herron, Joshua M. Borin, Jacob C. Boswell, Jillian Walker, I. Chen Kimberly Chen, Charles A. Knox, Margrethe Boyd, Frank Rosenzweig, William C. Ratcliff
Biological Sciences Faculty Publications
The transition from unicellular to multicellular life was one of a few major events in the history of life that created new opportunities for more complex biological systems to evolve. Predation is hypothesized as one selective pressure that may have driven the evolution of multicellularity. Here we show that de novo origins of simple multicellularity can evolve in response to predation. We subjected outcrossed populations of the unicellular green alga Chlamydomonas reinhardtii to selection by the filter-feeding predator Paramecium tetraurelia. Two of five experimental populations evolved multicellular structures not observed in unselected control populations within ~750 asexual generations. Considerable variation …
Using 3d Card-Making Project To Motivate Students’ Writing, Dan Li
Using 3d Card-Making Project To Motivate Students’ Writing, Dan Li
The Montana English Journal
Based on the ideas of inclusive education and multiple intelligences, I advocate using a “3D card” project to inspire students' writing. A 3D card project incorporates sessions on organization's logo appreciation, discussion, letter design, slogan design, and 3D card making as well as a writing task. All of these steps provide students with background information on the topic. In this article, I use these steps to teach my diverse middle school students to design a logo and write a statement for a nonprofit organization.
M 115.00: Probability And Linear Mathematics, Lauren S. Fern
M 115.00: Probability And Linear Mathematics, Lauren S. Fern
University of Montana Course Syllabi
No abstract provided.
M 412.01: Partial Differential Equations, Emily F. Stone
M 412.01: Partial Differential Equations, Emily F. Stone
University of Montana Course Syllabi
No abstract provided.