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Comparing Unmanned Aerial Systems (Uas) Structure-From-Motion Digital Surface Modeling To Laser Imaging Detection And Ranging (Lidar), Joshua D. Schane

Geography Masters Research Papers

UAS (unmanned-aerial systems) mapping is an emerging technology in spatial science. UAS, more informally referred to as “drones,” are small, radio-controlled or autonomous aerial platforms outfitted with camera sensor systems that can be deployed to fly missions for mapping terrain and structures. With the use of a photogrammetry technique called structure-from-motion, overlapping aerial images can be developed into high-resolution spatial data (< 5-cm). These data are georeferenced by GPS location information assigned to aerial targets which act as ground-control points (GCPs). This research explores the accuracy of the UAS-derived digital surface model (DSM) as it relates to a LIDAR DSM of the same study area in St. Helens, Oregon.

The site that was chosen to be mapped was a large wastewater treatment plant, with surrounding natural areas, residential, and industrial properties. The site was mapped using a small quadcopter-style UAS which was programmed autonomously; the overlapping aerial …

Perspectives On Transdermal Electroporation, Kevin B. Ita

Faculty Publications & Research of the TUC College of Pharmacy

Transdermal drug delivery offers several advantages, including avoidance of erratic absorption, absence of gastric irritation, painlessness, noninvasiveness, as well as improvement in patient compliance. With this mode of drug administration, there is no pre-systemic metabolism and it is possible to increase drug bioavailability and half-life. However, only a few molecules can be delivered across the skin in therapeutic quantities. This is because of the hindrance provided by the stratum corneum. Several techniques have been developed and used over the last few decades for transdermal drug delivery enhancement. These include sonophoresis, iontophoresis, microneedles, and electroporation. Electroporation, which refers to the temporary …

The Influence Of Solid Microneedles On The Transdermal Delivery Of Selected Antiepileptic Drugs, Julia Nguyen, Kevin B. Ita, Matthew J. Morra, Inna E. Popova

Faculty Publications & Research of the TUC College of Pharmacy

The aim of this project was to examine the effect of microneedle rollers on the percutaneous penetration of tiagabine hydrochloride and carbamazepine across porcine skin in vitro. Liquid chromatography-mass spectrometric analysis was carried out using an Agilent 1200 Series HPLC system coupled to an Agilent G1969A TOF-MS system. Transdermal flux values of the drugs were determined from the steady-state portion of the cumulative amount versus time curves. Following twelve hours of microneedle roller application, there was a 6.74-fold increase in the percutaneous penetration of tiagabine hydrochloride (86.42 ± 25.66 µg/cm²/h) compared to passive delivery (12.83 ± 6.30 µg/cm …

Theoretical Estimates Of Spherical And Chromatic Aberration In Photoemission Electron Microscopy, Joseph P. S. Fitzgerald, Robert Campbell Word, Rolf Kӧnenkamp

Physics Faculty Publications and Presentations

We present theoretical estimates of the mean coefficients of spherical and chromatic aberration for low energy photoemission electron microscopy (PEEM). Using simple analytic models, we find that the aberration coefficients depend primarily on the difference between the photon energy and the photoemission threshold, as expected. However, the shape of the photoelectron spectral distribution impacts the coefficients by up to 30%. These estimates should allow more precise correction of aberration in PEEM in experimental situations where the aberration coefficients and precise electron energy distribution cannot be readily measured.

Chinese Love Stories From Ch'ing-Shih, Hua-Yuan Li Mowry, Menglong Feng

Dartmouth Scholarship

About the Book

Ch'ing-shih is a lovingly made anthology of love stories, provided we push the limits of definition of "love story" just a little wider than they are usually set. The stories are classified into twenty-four major categories, each further divided into subsections and concluded with a paragraph of commentary. Professor Mowry provides a sampling of the contents of each category but not of each subsection, though the headings themselves are enough to pique our curiosity: shall we turn next to "incomplete resurrections," or "unusual degenerates"? The stories were collected in the early seventeenth century, just a decade or …

Assessing Differences Between Early And Later Adopters Of Accountable Care Organizations Using Taxonomic Analysis, Frances M. Wu, Stephen M. Shortell, Valerie A. Lewis, Carrie H. Colla, Elliott S. Fisher

Dartmouth Scholarship

Objective. To compare early and later adopters of the accountable care organization (ACO) model, using the taxonomy of larger, integrated system; smaller, physician-led; and hybrid ACOs. Data sources. The National Survey of ACOs, Waves 1 and 2.

Studydesign. Clusteranalysisusingthetwo-stepclusteringapproach,validatedusing discriminant analysis. Wave 2 data analyzed separately to assess differences from Wave 1 and then data pooled across waves. Findings. Compared to early ACOs, later adopter ACOs included a greater breadth of provider group types and a greater proportion self-reported as integrated delivery systems. When data from the two time periods were combined, a three-cluster solution similar to the original cluster …

Functional Mechanisms Underlying Pleiotropic Risk Alleles At The 19p13.1 Breast–Ovarian Cancer Susceptibility Locus, Kate Lawrenson, Siddhartha Kar, Karen Mccue, Karoline Kuchenbaeker, Kyriaki Michailidou, Jonathan Tyrer, Jonathan Beesley, Susan J. Ramus, Qiyuan Li, Melissa K. Delgado, Janet M. Lee, Kristiina Aittomäki, Irene L. Andrulis, Hoda Anton-Culver, Volker Arndt, Banu K. Arun, Brita Arver, Elisa V. Bandera, Monica Barile, Rosa B. Barkardottir, Daniel Barrowdale, Matthias W. Beckmann, Javier Benitez, Andrew Berchuck, Maria Bisogna, Line Bjorge, Carl Blomqvist, William Blot, Natalie Bogdanova, Anders Bojesen, Stig E. Bojesen, Manjeet K. Bolla, Bernardo Bonanni, Anne-Lise Børresen-Dale, Hiltrud Brauch, Paul Brennan, Hermann Brenner, Fionna Bruinsma, Joan Brunet, Shaik Ahmad Buhari, Barbara Burwinkel, Ralf Butzow, Sandra S. Buys, Qiuyin Cai, Trinidad Caldes, Ian Campbell, Rikki Canniotto, Jenny Chang-Claude, Jocelyne Chiquette, Ji-Yeob Choi, Kathleen B.M Claes, Gemo Study Collaborators, Linda S. Cook, Angela Cox, Daniel W. Cramer, Simon S. Cross, Cezary Cybulski, Kamila Czene, Mary B. Daly, Francesca Damiola, Agnieszka Dansonka-Mieszkowska, Hatef Darabi, Joe Dennis, Peter Devilee, Orland Diaz, Jennifer A. Doherty

Dartmouth Scholarship

A locus at 19p13 is associated with breast cancer (BC) and ovarian cancer (OC) risk. Here we analyse 438 SNPs in this region in 46,451 BC and 15,438 OC cases, 15,252 BRCA1 mutation carriers and 73,444 controls and identify 13 candidate causal SNPs associated with serous OC (P = 9.2 X 10^-20), ER-negative BC (P = 1.1 X 10^-13), BRCA1 -associated BC (P = 7.7 X 10^-16) and triple negative BC (P-diff = 2 X 10^-5). Genotype-gene expression associations are identified for candidate target genes ANKLE1 (P = 2 X 10^{-3 …}

Sweet Corn Production With Different Mulches, Varieties, And Planting Dates In North Dakota, Hannah Bye

Agribusiness and Biosystems Engineering

Sweetcorn is a high value crop that can grow almost anywhere given the right temperature conditions. In North Dakota those conditions are not always met. Using mulch increases the soil temperature. Early planting will have a higher soil temperature increase, but also creates risk from frost damage. In this study, three varieties of sweetcorn was planted with different maturity days, on four covers (black, clear, biodegradable and no mulch), with four different planting dates (from April 15 to June 1). Emergence, growth stage, plant height, leaf area index, soil and near surface air temperature, yield and sugar content was measured. …

Convergence Of Excitatory And Inhibitory Projections In The Mouse Medial Geniculate Body, Blaise Andre Clarke

LSU Master's Theses

The medial geniculate body (MGB) is the target of excitatory and inhibitory inputs from several neural sources. Among these, the inferior colliculus (IC) is an important nucleus in the midbrain that acts as a nexus for many auditory pathways and projections, ascending and descending, throughout the rest of the central auditory system and provides both excitatory and inhibitory projections to the MGB. In addition, the thalamic reticular nucleus (TRN) is a major source of inhibition to the MGB, particularly in rodents. Finally, the auditory cortex (AC) is a major source of descending input to the MGB, providing direct excitation and …

Determining Maximum Glycolytic Capacity Using Extracellular Flux Measurements, Shona A. Mookerjee, David G. Nicholls, Martin D. Brand

Faculty Publications & Research of the TUC College of Pharmacy

Measurements of glycolytic rate and maximum glycolytic capacity using extracellular flux analysis can give crucial information about cell status and phenotype during normal operation, development of pathology, differentiation, and malignant transformation. They are also of great use when assessing the effects of chemical or drug treatments. Here, we experimentally define maximum glycolytic capacity, demonstrate how it differs from glycolytic rate, and provide a protocol for determining the basal glycolytic rate and maximum glycolytic capacity in cells using extracellular flux measurements. The results illustrate the power of extracellular flux analysis to describe the energetics of adherent cells in culture in a …

Measurement Of The Absolute Magnitude And Time Courses Of Mitochondrial Membrane Potential In Primary And Clonal Pancreatic Beta-Cells, Akos Gerencser, Shona A. Mookerjee, Martin Jastroch, Martin D. Brand

Faculty Publications & Research of the TUC College of Pharmacy

The aim of this study was to simplify, improve and validate quantitative measurement of the mitochondrial membrane potential (ΔψM) in pancreatic β-cells. This built on our previously introduced calculation of the absolute magnitude of ΔψM in intact cells, using time-lapse imaging of the non-quench mode fluorescence of tetramethylrhodamine methyl ester and a bis-oxonol plasma membrane potential (ΔψP) indicator. ΔψM is a central mediator of glucose-stimulated insulin secretion in pancreatic β-cells. ΔψM is at the crossroads of cellular energy production and demand, therefore precise assay of its magnitude is a valuable tool to study how these processes interplay in insulin secretion. …

Review Of The Tragedy Of The Commodity: Oceans, Fisheries, And Aquaculture, Julius Mcgee

Sociology Faculty Publications and Presentations

Book review of, The Tragedy of the Commodity: Oceans, Fisheries, and Aquaculture By Stefano B. Longo, Rebecca Clausen, and Brett Clark. Rutgers University Press (June 25, 2015).

Language Rich Early Childhood Classroom: Simple But Powerful Beginnings, Erin E. Flynn

School of Social Work Faculty Publications and Presentations

This article highlights research exploring the benefits of small group storytelling as a way to promote rich language in early childhood classrooms. Using the storytelling of children from a preschool classroom serving lower SES children, the collaborative affordances of story circles are explored. Results show that small group storytelling engages children in ways of using language associated with literacy learning. When storytelling, children use language in extended, multi-clause turns, relaying what happened in another context. Story requires children to communicate what happened as well as the interpersonal significance of events. Small group storytelling also gives children a chance to practice …

Creating An Inclusionary Bicycle Justice Movement, Aaron Golub, Melody L. Hoffman, Gerardo Francisco Sandoval, Adonia Lugo

Urban Studies and Planning Faculty Publications and Presentations

This is a chapter in: Bicycle Justice and Urban Transformation: Biking for All?

Halprin Sequence Reimagined, Andrea Villarroel, Nate Miller, Kris Decker, Foster Gough, Scott Robinson

Urban Design Workshop

The Halprin Sequence is a series of underutilized green spaces in the heart of Portland, Oregon. Once a booming attraction, as time has past and the city has grown, the Halprin Sequence has been forgotten amongst the towers. With a rich history in urban development and design, the Halprin Sequence could offer much more to the people of Portland than it is currently. The surrounding street of Fourth Avenue is also underutilized. The street is primarily used by automobiles, and the sidewalks are not pleasant to walk through.

For a green space network, the Halprin Sequence is in an ideal …

From Grapheme To Phonological Output: Performance Of Adults Who Stutter On A Word Jumble Task, Megann Mcgill, Harvey Sussman, Courtney T. Byrd

Speech and Hearing Sciences Faculty Publications and Presentations

Purpose

The purpose of the present study was to extend previous research by analyzing the ability of adults who stutter to use phonological working memory in conjunction with lexical access to perform a word jumble task.

Method

Forty English words consisting of 3-, 4-, 5-, and 6-letters (n = 10 per letter length category) were randomly jumbled using a web-based application. During the experimental task, 26 participants were asked to silently manipulate the scrambled letters to form a real word. Each vocal response was coded for accuracy and speech reaction time (SRT).

Results

Adults who stutter attempted to solve …

The Meanings In The Messages: How Sms Reminders And Real-Time Adherence Monitoring Improve Antiretroviral Therapy Adherence In Rural Uganda, Norma C. Ware, Emily A. Pisarski, Melanie Tam, Monique A. Wyatt, Esther Atukunda, Angella Musimenta, David Bangsberg, Jessica E. Haberer

OHSU-PSU School of Public Health Faculty Publications and Presentations

To understand how a pilot intervention combining SMS reminders with real-time adherence monitoring improved adherence to HIV antiretroviral therapy (ART) for adults initiating treatment in rural Uganda.

Design: Qualitative study, conducted with a pilot randomized controlled trial.

Methods: Sixty-two pilot intervention study participants took part in qualitative interviews on: preferences for content; frequency and timing of SMS adherence reminders; understandings and experiences of SMS reminders; and understandings and experiences of real-time adherence monitoring. Analysis of interview data was inductive and derived categories describing how participants experienced the intervention, and what it meant to them.

Results: SMS reminders prompted taking individual …

Arts: Fiction And Fiction Writers: The Americas, Rachel Norman

Faculty Publications

This essay by Rachel Norman, which originally appeared in the Encyclopedia of Women & Islamic Cultures, discusses contemporary Muslim fiction published in the United States with a particular focus on three novels: Mojha Kahf's The Girl in the Tangerine Scarf, Laila Halaby's Once in a Promised Land, and Randa Jarrar's A Map of Home.

The State Of The Portland Msa Housing Market, Portland State University. Northwest Economic Research Center

Northwest Economic Research Center Publications and Reports

On its surface, the rapid increase of home prices in the Portland Metropolitan Statistical Area (MSA) resembles the overheated moments before the housing bubble burst in 2007. OnPoint Community Credit Union, concerned that history may already be repeating itself, asked the Northwest Economic Research Center (NERC) to investigate speculation within the Portland housing market, provide a forecast of home prices, and summarize potential market headwinds and tailwinds.

To accomplish this, NERC estimates the change in local home prices due to ‘fundamental’ drivers. Using population and income to estimate a fundamental home price index (HPI), this analysis compares the fundamental HPI …

Assessment Of Tmdl Implementation And Water Quality Status And Trends In Amazon Creek And Coyote Creek Watersheds, Stosh Zydek

Environmental Science and Management Professional Master's Project Reports

In this project, I analyzed the status and trends of water quality data describing fecal bacteria (E. coli) and DO in the Amazon and Coyote Creek watersheds of the Southern Willamette Valley, Oregon. I also examined TMDL implementation plans produced by DMAs, determined if and how implementation activities corresponded to changes in water quality, compared management and planning of DMAs in the watersheds, discussed aspects of the current TMDL, and compared state regulations and standards in other states. I concluded by making management recommendations to better facilitate future status and trend analysis.

Amazon Creek, Amazon Diversion Channel, A-3 …

Greenroof Study: Final Report, An Assessment Of Greenroof Design And Maintenance In Portland, Oregon: 2011 – 2013, Windy Carney Beck

Environmental Science and Management Professional Master's Project Reports

In 1999 the City of Portland (City) began to require that stormwater management facilities (SMF) be built when private property is newly developed or redeveloped (City Code Chapter 17.38). Proper maintenance and upkeep of SMFs is essential to ensuring they function appropriately. The City's Maintenance Inspection Program (MIP) is tasked with inspecting stormwater management facilities on private properties in order to ensure that they are being properly operated and maintained and to meet provisions of the City's NPDES Municipal Separated Storm Sewer System (MS4) permit.

Greenroofs are one type of SMF that are installed to satisfy this requirement. Understanding the …

Signal Velocity In Oscillator Arrays, Carlos E. Cantos, David K. Hammond, J. J. P. Veerman

Mathematics and Statistics Faculty Publications and Presentations

We investigate a system of coupled oscillators on the circle, which arises from a simple model for behavior of large numbers of autonomous vehicles. The model considers asymmetric, linear, decentralized dynamics, where the acceleration of each vehicle depends on the relative positions and velocities between itself and a set of local neighbors. We first derive necessary and sufficient conditions for asymptotic stability, then derive expressions for the phase velocity of propagation of disturbances in velocity through this system. We show that the high frequencies exhibit damping, which implies existence of well-defined signal velocities c+>0 and c−f(x−c+t) in the direction …

A Multivariate Nonlinear Mixed Effects Model For Longitudinal Image Analysis: Application To Amyloid Imaging, Murat Bilgel, Jerry L. Prince, Dean F. Wong, Susan M. Resnick, Bruno M. Jedynak

Mathematics and Statistics Faculty Publications and Presentations

It is important to characterize the temporal trajectories of disease-related biomarkers in order to monitor progression and identify potential points of intervention. These are especially important for neurodegenerative diseases, as therapeutic intervention is most likely to be effective in the preclinical disease stages prior to significant neuronal damage. Neuroimaging allows for the measurement of structural, functional, and metabolic integrity of the brain at the level of voxels, whose volumes are on the order of mm³. These voxelwise measurements provide a rich collection of disease indicators. Longitudinal neuroimaging studies enable the analysis of changes in these voxelwise measures. However, …

Voxel Based Morphometry In Optical Coherence Tomography: Validation & Core Findings, Bhavna J. Antony, Min Chen, Aaron Carass, Bruno M. Jedynak, Omar Al-Louzi, Sharon D. Solomon, Shiv Saidha, Peter Calabresi, Jerry L. Prince

Mathematics and Statistics Faculty Publications and Presentations

Optical coherence tomography (OCT) of the human retina is now becoming established as an important modality for the detection and tracking of various ocular diseases. Voxel based morphometry (VBM) is a long standing neuroimaging analysis technique that allows for the exploration of the regional differences in the brain. There has been limited work done in developing registration based methods for OCT, which has hampered the advancement of VBM analyses in OCT based population studies. Following on from our recent development of an OCT registration method, we explore the potential benefits of VBM analysis in cohorts of healthy controls (HCs) and …

The Complements Of Lower Cones Of Degrees And The Degree Spectra Of Structures, Uri Andrews, Mingzhong Cai, Iskander Sh Kalimullin, Steffen Lempp, Joseph S. Miller, Antonio Montalban

Dartmouth Scholarship

We study Turing degrees a for which there is a countable structure whose degree spectrum is the collection {x : x ≰ a}. In particular, for degrees a from the interval [0′, 0″], such a structure exists if a′ = 0″, and there are no such structures if a″ > 0‴.

Recent Publications, Editorial Office

Contemporary Aesthetics (Journal Archive)

No abstract provided.

T-Tube Placement As A Method For Treating Penetrating Oesophageal Injuries, Roger Gill, K. M. Inam Pal, Fatima Mannan, Amber Bawa, Saulat H. Fatimi

Department of Surgery Docs

Introduction: Penetrating oesophageal injuries are extremely rare. Their timely recognition can be difficult and optimal treatment remains controversial. Early recognition of injury is possible with the help of a high index of suspicion and early radiological and endoscopic examinations. Prompt surgical intervention with primary repair of injury, should be the goal.
Presentation of cases: We describe two cases of penetrating oesophageal trauma where T-Tube placement through the oesophageal defect, was successfully employed. Both cases proved to be challenging due to time lapse after injury and anatomical location.
Discussion: Penetrating injuries to the Oesophagus are rare with a reported …

Diagnostic Accuracy Of Ct Scan In Staging Resectable Esophageal Cancer, Rizwan Sultan, Zishan Haider, Tabish Chawla

Department of Surgery Docs

Abstract

INTRODUCTION:

CT scan is an important tool in staging of esophageal cancer. Survival can be improved by providing neoadjuvant treatment which depends on stage of esophageal cancer. So it is very important to stage the disease accurately.

METHODS:

The objective of this study is to determine diagnostic accuracy of CT scan to stage esophageal cancer. Ct scans of 62 patients included in the study were reviewed by a Consultant radiologist who was blinded to the final stage of tumour. Diagnosticaccuracy measured by comparing with histopathological staging.

RESULTS:

Accuracy, sensitivity and specificity of CT for T2 and T3 are 66%, …

The Anti-Inflammatory Caspase-12 Gene Does Not Influence Sle Phenotype In African-Americans, Trista Fuchs, Jennifer A. Kelly, Emily Simon, Kathy L. Sivils, Evan Hermel

Faculty Publications & Research of the TUC College of Osteopathic Medicine

No abstract provided.

Relief Of Cervicogenic Headaches After Single-Level And Multilevel Anterior Cervical Diskectomy: A 5-Year Post Hoc Analysis, Jonathan J. Liu, Gilbert Cadena, Ripul R. Panchal, Rudolph J. Schrot, Kee D. Kim

Faculty Publications & Research of the TUC College of Osteopathic Medicine

Study Design Prospective study.

Objective Because single-level disk arthroplasty or arthrodesis in the lower subaxial spine improves headaches after surgery, we studied whether this effect may be better appreciated after two-level arthroplasty.

Methods We performed an independent post hoc analysis of two concurrent prospective randomized investigational device exemption trials for cervical spondylosis, one for single-level treatment and the other for two adjacent-level treatments.

Results For the one-level study, baseline mean headache scores significantly improved at 60 months for both the cervical disk arthroplasty (CDA) and anterior cervical diskectomy and fusion (ACDF) groups (p < 0.0001). However, mean improvement in headache scores was not statistically different between the investigational and control groups from 6 months through 60 months. For the two-level study, baseline mean headache scores significantly improved at 60 months for both the CDA and ACDF groups (p < 0.0001). The CDA group demonstrated greater improvement from baseline at all points; this difference was statistically significant at 6, 12, 24, 36, and 48 months but not at 18 and 60 months.

Conclusion Both CDA and ACDF at either …