Where Have All the Young Trees Gone? A Big Picture Look at the Lack of Seedlings and Saplings in Urban Forests

We take a big picture look at the lack of seedlings, saplings and young trees in urban forests using our research in Forest Park in Portland, Oregon. Broshot, who measured vegetation at 25 sites in Forest Park, recorded significantly fewer live seedlings, saplings and young trees and significantly more dead seedlings, saplings and young trees in 2003 than in 1993. The percent mortality of western red cedar seedlings that were planted at 9 sites in Forest Park in 2005 ranged from less than 5% to over 70%. Investigations into the cause of seedling death has discounted predation by deer, elk or invertebrates, leaf disease, soil moisture, site aspect, and light as factors. The site with the highest mortality is located directly above the St John’s Bridge, suggesting air pollution. More recent work with lichens has provided evidence that nitrogen deposition related to air pollution may be the cause. We outline our past work and report preliminary results from our 2012 lichen survey analysis to support our hypothesis that pollution is a cause of the lack of young trees

Air Pollution: The Trees Aren\u27t Lichen It

The Keck Summer Collaborative Research Program provides opportunities for Linfield College students and faculty to conduct research on issues related to the Pacific Northwest, and to bring the research findings back into the classroom within the subsequent academic year. Students partner with faculty to conduct research and present their work to other students, Linfield staff and faculty, and community members during a series of brown bag lunches. Wes Hanson, Leigh Hanson, Meghan Lockwood, and Morgan Yarber conducted research with Nancy Broshot and gave this presentation during the summer of 2013

Arbor Day Foundation Consulting Project MNGT 475L

Over the past 4 months, our team at the University of Nebraska-Lincoln Business Honors Academy has been working directly with Nebraska’s own, Arbor Day Foundation, or Arbor Day, in hopes of applying our skill sets and mindsets to solve a pressing problem Arbor Day currently faces. We have been tasked with the challenge of identifying creative, scalable, and profitable new business ventures for Arbor Day that will aid the generation of new revenue sources. With these sources of revenue, Arbor Day desires to further inspire people to plant, nurture, and celebrate trees and in turn solve some of the world’s biggest challenges. Our recommendations to Arbor Day are to invest in social media to increase its brand awareness and presence with a younger demographic, to make use of influencer campaigns to increase social media engagement, and to utilize on-the-ground events and personalization tactics to increase repeat donations via social media

Arbor Day Foundation Consulting Project MNGT 475L

Over the past 4 months, our team at the University of Nebraska-Lincoln Business Honors Academy has been working directly with Nebraska’s own, Arbor Day Foundation, or Arbor Day, in hopes of applying our skill sets and mindsets to solve a pressing problem Arbor Day currently faces. We have been tasked with the challenge of identifying creative, scalable, and profitable new business ventures for Arbor Day that will aid the generation of new revenue sources. With these sources of revenue, Arbor Day desires to further inspire people to plant, nurture, and celebrate trees and in turn solve some of the world’s biggest challenges. Our recommendations to Arbor Day are to invest in social media to increase its brand awareness and presence with a younger demographic, to make use of influencer campaigns to increase social media engagement, and to utilize on-the-ground events and personalization tactics to increase repeat donations via social media

Arbor Day Foundation Consultation

Over the past 4 months, our team at the University of Nebraska-Lincoln Business Honors Academy has been working directly with Nebraska’s own, Arbor Day Foundation, or Arbor Day, in hopes of applying our skill sets and mindsets to solve a pressing problem Arbor Day currently faces. We have been tasked with the challenge of identifying creative, scalable, and profitable new business ventures for Arbor Day that will aid the generation of new revenue sources. With these sources of revenue, Arbor Day desires to further inspire people to plant, nurture, and celebrate trees and in turn solve some of the world’s biggest challenges. Our recommendations to Arbor Day are to invest in social media to increase its brand awareness and presence with a younger demographic, to make use of influencer campaigns to increase social media engagement, and to utilize on-the-ground events and personalization tactics to increase repeat donations via social media

Arbor Day Foundation

Over the past 4 months, our team at the University of Nebraska-Lincoln Business Honors Academy has been working directly with Nebraska’s own, Arbor Day Foundation, or Arbor Day, in hopes of applying our skill sets and mindsets to solve a pressing problem Arbor Day currently faces. We have been tasked with the challenge of identifying creative, scalable, and profitable new business ventures for Arbor Day that will aid the generation of new revenue sources. With these sources of revenue, Arbor Day desires to further inspire people to plant, nurture, and celebrate trees and in turn solve some of the world’s biggest challenges. Our recommendations to Arbor Day are to invest in social media to increase its brand awareness and presence with a younger demographic, to make use of influencer campaigns to increase social media engagement, and to utilize on-the-ground events and personalization tactics to increase repeat donations via social media

Ulterior Show Card

Show card for Ulterior. March 9 - April 11, 2001.https://digitalcommons.udallas.edu/ulterior/1000/thumbnail.jp

Missing.... presumed at random: cost-analysis of incomplete data

When collecting patient-level resource use data for statistical analysis, for some patients and in some categories of resource use, the required count will not be observed. Although this problem must arise in most reported economic evaluations containing patient-level data, it is rare for authors to detail how the problem was overcome. Statistical packages may default to handling missing data through a so-called complete case analysis, while some recent cost-analyses have appeared to favour an available case approach. Both of these methods are problematic: complete case analysis is inefficient and is likely to be biased; available case analysis, by employing different numbers of observations for each resource use item, generates severe problems for standard statistical inference. Instead we explore imputation methods for generating replacement values for missing data that will permit complete case analysis using the whole data set and we illustrate these methods using two data sets that had incomplete resource use information

A Small Dorsal Pontine Infarction Presenting with Total Gaze Palsy Including Vertical Saccades and Pursuit

A small localized infarction in the dorsal pontine area can cause various eye-movement disturbances, such as abducens palsy, horizontal conjugate gaze palsy, internuclear ophthalmoplegia, and one-and-a-half syndrome. However, complete loss of vertical saccades and pursuit with horizontal gaze palsy has not been reported previously in a patient with a small pontine lesion. We report a 67-year-old man with a small dorsal caudal pontine infarct who exhibited total horizontal gaze palsy as well as loss of vertical saccades and pursuit

Forecasting Elections

In this paper we assess polls and prediction markets over a large number of US elections in order to determine which perform better in terms of forecasting outcomes. We consider accuracy, bias and decidedness over different time horizons before an election, and we conclude that prediction markets appear to outperform polls in terms of accuracy, unbiasedness and decidedness. We thus contribute to the growing literature comparing election forecasts of polls and prediction markets