Digital Commons Network^™

Enriching Teaching Practice Through Place, Arts And Culture: Resources For In-Service Teachers Of The Bering Strait School District, Robin L. Child

Education

The SILKAT (Sustaining Indigenous and Local Knowledge, Art and Teaching) project joins together the University of Alaska Fairbanks and the Bering Strait School District in an effort to celebrate the rich cultural arts and Indigenous knowledge of northwest Alaska and bring the knowledge and ingenuity of local artists and culture-bearers to the forefront of teaching practices and curriculum. This work presents the content and format of one teacher professional development module based on one of seven arts and place-based core teaching practices-the ability to elicit student thinking and facilitate reflective thinking in students. It also examines the development of two …

How To Guide: Implementing Place Based Learning Into The Classroom, Elisha Howard

Education

New teachers to rural Alaska may have a difficult time integrating place-based education into their classroom while still using the mandated curriculum provided by their school district. Teachers may also have a hard time relating to their students because they are new to the community and culture. There are limited resources to help teachers learn how to implement place-based education into the curriculum given. Therefore, a how-to guide would be helpful to rural Alaska teachers. This how-to guide will include: Part I. Before Instruction, Part II. Adapting Instruction, Part III. Finding Resources, and Part IV. After the Lessons: Assessments.

Translanguaging In Linguistically Diverse Classrooms: Theory To Practice, Madison N. Visser

Education

A new model for second-language learning, translanguaging, is emerging in recent years as an antithesis to the immersion model of language education. Translanguaging views language as a system and encourages the use of all of students' languages and language learning resources in the classroom. Translanguaging stands in stark contrast to the language-separation underpinning of the immersion model of language education. While there exists a growing quantity of research on the theoretical foundations of translanguaging, there is a very limited amount of published application of translanguaging principles to curriculum, especially in the linguistically diverse classroom. This project investigates translanguaging inside these …

Culturally Responsive Teaching And Student Self-Efficacy In Alaskan Middle Schools, Scott Christian

Counseling

Culturally responsive teaching may provide practices and dispositions which support closing the achievement gap between minority and Caucasian student populations. For this research, culturally responsive teaching can be considered as teaching practices that address students' specific cultural characteristics. These characteristics include common practices such as language, values and traditions but also include concepts such as communication, learning styles, and relationship norms. The research also presents a definition of culturally responsive teaching that extends beyond curriculum and instruction to focus on student teacher relationships, empathy, and the teacher as learner. This research explores the beliefs and practices around Culturally Responsive Teaching …

One Health Toxicology: Expanding Perspectives And Methods To Assess Environmental Contaminants, John Robinson Harley

Chemistry and Biochemistry

The discipline of One Health is founded on the principal that environmental health, animal health, and human health are interconnected. Although the field has been largely focused on zoonotic diseases, examining concepts such as toxicology under a One Health lens can offer a more holistic and preventative approach to research and implementation and, in particular, how fish-based diets may be involved with One Health outcomes. Here we present three general case studies that demonstrate new approaches to investigating One Health toxicology. In Chapter One we show how Arctic canids can be used as environmental sentinels for human health. We discuss …

Glacier Contribution To Lowland Streamflow: A Multi-Year, Geochemical Hydrograph Separation Study In Sub-Arctic Alaska, Tiffany A. Gatesman

Chemistry and Biochemistry

Glacier melt affects the geochemical composition of rivers; however, quantifying the glacier contribution to subarctic watershed-scale runoff has attracted limited attention. To estimate glacier contribution, we conducted a 6-year geochemical hydrograph separation study in a geologically heterogeneous glacierized watershed in Interior Alaska. Water samples were collected daily from Jarvis Creek during late April through September. Source waters were collected synoptically each year from rain, snow, baseflow (winter discharge), and the glacier terminus discharge. All samples were analyzed for stable water isotopes and dissolved ion concentrations. Stream surface water samples have large seasonal and inter-annual geochemical variation, however, source waters show …

Modulation Of Ischemia- Reperfusion Injury In Mammalian Hibernators And Non-Hibernators: A Comparative Study, Saurav Bhowmick

Chemistry and Biochemistry

Events characterized by ischemia/reperfusion (I/R), such as stroke and cardiac arrest, are among the most frequent causes of debilitating neurological injury and death worldwide. During ischemia, the brain experiences oxygen and nutrition deprivation due to lack of blood flow, and tissue damage ensues. Arctic ground squirrel (AGS; Urocitellus parryii), a hibernating species has the innate ability to survive profound decreases in blood flow (ischemia) during torpor and return of blood flow (reperfusion) during intermittent euthermic periods without any neurological deficit. However, the mechanisms by which AGS tolerate the extreme fluctuations in blood flow remain unclear. The main focus of this …

Silkat Arts And Place-Based Core Teaching Practice: Workshop Approach And Cultural Arts Units Development, Megan Ellis

Education

The work presented in this project is representative of the goals of the SILKAT (Sustaining Indigenous and Local Knowledge, Arts and Teaching) project, which is a collaborative effort between the University of Alaska Fairbanks and the Bering Strait School District, to create culturally responsive professional development for teachers, and cultural arts units for students. This work is the presentation of one professional development module for the core practice of having the ability to facilitate a workshop approach in the classroom where different students, or groups of students are doing different things at the same time. It is also a presentation …

Meta-Analysis Of Hydraulic Fracture Conductivity Data, Mohammed Rashnur Rahman

Engineering

Previous empirical models of propped fracture conductivity are based either on data sourced from single investigations or on data not in the public domain. In this work, statistically rigorous models of propped fracture conductivity are developed using a database of fracture conductivity experiments reported in technical literature over the last 40 years. The database contains the results from about 2700 experimental runs. Propped fracture conductivity is the dependent variable and proppant types, mesh size, proppant concentration, formation hardness, closure stress, formation temperature, and polymer concentration are the independent variables. The mother database is partitioned into subsets; that is different databases …

Integrating Herbivore Population Dynamics Into A Global Land Biosphere Model: Plugging Animals Into The Earth System, Shree R. S. Dangal, Hanqin Tian, Chaoqun Lu, Wei Ren, Shufen Pan, Jia Yang, Nicola Di Cosmo, Amy Hessl

Plant and Soil Sciences Faculty Publications

Mammalian herbivores are an essential component of grassland and savanna ecosystems, and with feedbacks to the climate system. To date, the response and feedbacks of mammalian herbivores to changes in both abiotic and biotic factors are poorly quantified and not adequately represented in the current global land surface modeling framework. In this study, we coupled herbivore population dynamics in a global land model (the Dynamic Land Ecosystem Model, DLEM 3.0) to simulate populations of horses, cattle, sheep, and goats, and their responses to changes in multiple environmental factors at the site level across different continents during 1980–2010. Simulated results show …

Extending The Lattice-Based Smoother Using A Generalized Additive Model, Gulfaya Rakhmetova

Mathematics and Statistics

The Lattice Based Smoother was introduced by McIntyre and Barry (2017) to estimate a surface defined over an irregularly-shaped region. In this paper we consider extending their method to allow for additional covariates and non-continuous responses. We describe our extension which utilizes the framework of generalized additive models. A simulation study shows that our method is comparable to the Soap film smoother of Wood et al. (2008), under a number of different conditions. Finally we illustrate the method's practical use by applying it to a real data set.

Sensitivity To Hydrocarbons And Cytochrome P4501a Enzyme Activity In Arctic Marine Birds And Waterfowl, Ann E. Riddle-Berntsen

Marine Biology

The Arctic is host to a taxonomically diverse group of birds, including species of conservation and subsistence importance that spend many months of their annual cycle in the region. With prospects for oil and gas resource development and increases in vessel traffic in the Beaufort and Chukchi Seas, arctic birds could be valuable bioindicators to monitor contaminants and specifically hydrocarbons from crude oil. Using liver cytochrome P4501A (CYP1A) activity, I measured levels of hydrocarbon exposure in three bird species of subsistence importance: king eiders (Somateria spectabilis), common eiders (Somateria mollissima), and greater white-fronted geese (Anser albifrons). Over the course of …

Decision Making Processes For Bim Software Selection In The U.S. A.E.C. Industry: Developing A Unified, Streamlined Framework., Richelle Fosu

Purdue Polytechnic Doctoral Dissertations

The use of Building Information Modeling (BIM) techniques and tools continues to gain popularity in the Architecture, Engineering and Construction (AEC) industry as more companies in the various sectors are utilizing it in one form or another. In this research, the decision-making process of construction firms with respect to the selection of BIM software for use is investigated. Through one on one interviews and gathered survey responses, a framework mapping out the various paths the exist in the decision-making process are explored. This data is then used to form a framework for BIM software selection in the construction sector of …

Testing Environmental Dna Sampling And Predictive Modeling As Means To Investigate Wood Frog (Rana Sylvatica) Distribution In Alaska And Northern Canada, Mark Anthony Spangler

Biological Sciences

Global amphibian declines over the past 30+ years have led to a greater awareness of amphibian conservation issues. Few amphibian species occur in northern landscapes, however, and the species that do occur are widely dispersed and at the northern extent of their range. Accordingly, amphibian research is not prioritized in northern landscapes. Deficient monitoring practices have resulted in incomplete distribution knowledge that impedes the management of wood frogs (Rana sylvatica) in Alaska and northern Canada. I developed an environmental DNA detection assay to complement monitoring practices at the northern extent of the wood frog's range. This assay was tested to …

Assessing Seasonal Trends In Harbor Seal (Phoca Vitulina) Diet Using Stable Isotope Analysis Along The Whisker, Justin Arthur Smith

Biological Sciences

Harbor seals (Phoca vitulina) that use tidewater glaciers in the summers to molt, pup, and breed have declined in recent years, which could be attributed to reduced prey availability caused by regime shifts in the coastal marine environment. Recording seasonal dietary trends of harbor seals in different years could improve our ability to test if regime shifts caused these declines. However, such analysis has not been possible, because wild harbor seals are difficult to recapture. Stable isotope analysis of serial sections of growing whiskers (mystacial vibrissae) can be used as a tool to assess diet over different seasons, but uncertainty …

Post-Fire Variability In Siberian Alder In Interior Alaska: Distribution Patterns, Nitrogen Fixation Rates, And Ecosystem Consequences, Brian Richard Houseman

Biological Sciences

The circumpolar boreal forest is responsible for a considerable proportion of global carbon sequestration and is an ecosystem with limited nitrogen (N) pools. Boreal forest fires are predicted to increase in severity, size, and frequency resulting in increased losses of N from this system due to volatilization. Siberian alder (Alnus viridis ssp. fruticosa) N-fixation is a significant source of N-input within the interior Alaskan boreal forest and likely plays a pivotal, though poorly understood, role in offsetting losses of N due to fire. This study disentangles the effects of fire severity, post-fire age, and environmental variables on Siberian alder N-input …

Optimizing Landbird Surveys For Detecting Population And Spatial Dynamics, Jeremy D. Mizel

Biological Sciences

Landbird populations are undergoing concurrent changes in population size, spatial distribution, and phenology. The sensitivity of landbird monitoring programs to detect and distinguish these varied processes is of critical importance. Consequently, these efforts require inference methods that are efficient and fully leverage information about spatial, population, and phenological dynamics. The development of efficient inference methods can be addressed in part through a thorough understanding of how the data are actually generated, the application of sampling methods that attempt to maximize encounter probability, and the tailoring of sampling methods to maximize sensitivity to specific inference objectives. Chapter one of this dissertation …

Phylogeography And Molecular Phylogenetics Of The Hoary Marmot (Marmota Caligata), Nicholas John Kerhoulas

Biological Sciences

In this dissertation I documented the phylogeographic history of the Hoary Marmot (Marmota caligata) and its phylogenetic relationships with the Vancouver Island (M. vancouverensis) and Olympic (M. olympus) marmots. The Hoary Marmot is an iconic alpine mammal that is broadly distributed throughout the Pacific Northwest (PNW) from Washington and central Idaho in the south to Alaska in the north. Vancouver Island and Olympic marmots have much more restricted geographic distributions, occurring only on Vancouver Island (British Columbia, Canada) and the Olympic Peninsula (Washington, USA), respectively. In my first chapter I used mitochondrial DNA (mtDNA) sequence data to document the existence …

Social-Ecological Soundscapes: Examining Aircraft-Harvester-Caribou Conflict In Arctic Alaska, Taylor R. Stinchcomb

Biological Sciences

As human development expands across the Arctic, it is crucial to carefully assess the impacts to remote natural ecosystems and to indigenous communities that rely on wild resources for nutritional and cultural wellbeing. Because indigenous communities and wildlife populations are interdependent, assessing how human activities impact traditional harvest practices can advance our understanding of the human dimensions of wildlife management. Indigenous communities across Arctic Alaska have expressed concern over the last four decades that low-flying aircraft interfere with their traditional harvest practices. For example, communities often have testified that aircraft disturb caribou (Rangifer tarandus) and thereby reduce harvest opportunities. Despite …

Researcher Emotions As Data, A Tool And A Factor In Professional Development, Liora Nutov

The Qualitative Report

The purpose of this paper is to explore and reflect on my own emotions while carrying out a research process and on their effect on the research and on myself as a researcher. After a brief literature review of the ways in which researcher emotions are perceived in qualitative research in the field of social sciences, I offer a reflective account of my own experience and suggest that researcher emotions can serve both as additional data and as an analyzing tool, as well as being a factor in the professional development of researchers.

Respons Jagung (Zea Mays L.) Akibat Jarak Tanam Pada Sistem Tanam Legowo (2:1) Dan Berbagai Dosis Pupuk Nitrogen Pada Tanah Inceptisol Jatinangor, Agus Wahyudin, Yuyun Yuwariah, Fiky Yulianto Wicaksono, Reza Aed Galib Bajri

Jurnal Kultivasi

Di Indonesia jagung menjadi sumber karbohidrat kedua setelah padi. Selain sebagai sumber kebutuhan pangan jagung juga dapat digunakan sebagai sumber pakan ternak dan bahan baku industri.Penelitian ini bertujuan untuk mengamatiinteraksi sistem tanam legowo (2:1) dengan pupuk N yang menghasilkan pertum-buhan dan hasil terbaik pada tanaman jagung (Zea mays L.) Hibrida Pertiwi 3, di Jatinangor mulai bulan November 2016 sampai Maret 2017. Percobaan menggunakan Rancangan Acak Kelompok Pola Faktorial. Perlakuan terdiri dari dua faktor, masing-masing faktor terdiri dari tiga taraf dan diulang tiga kali. Faktor pertama adalah sistem tanam legowo (2:1) dengan menggunakan jarak tanam yang terdiri dari tiga taraf yaitu …

Empowering Refugees Through Self-Education, Ayanna Osborne

Master's Projects and Capstones

This project focuses on how to create easier access to education in refugee camps. This is discussed through the ideas of self-directed learning and cooperative learning. As well, the current need for education is explored. Several case studies are provided demonstrating that people without a formal education have successfully been able to seek information and teach themselves. As well, studies are discussed in which individuals have been shown to efficiently seek information and teach one another.

My website provided is still under construction as of 01/2018. It will be completed by the end of the year. Anyone is welcome to …

Pacific Sleeper Sharks In The Northeast Pacific Ocean: Relative Abundance, Plausible Incidental Exploitation Rates, Trophic Ecology, And Habitat Use, Dean Louis Courtney

Fisheries

Pacific sleeper shark relative abundance indices in the eastern Bering Sea and Gulf of Alaska were developed from sablefish longline surveys and the sustainability of a plausible range in Pacific sleeper shark incidental exploitation rates in the Gulf of Alaska was evaluated with a risk analysis using Monte Carlo simulation for use in fisheries management. A significant increase in Pacific sleeper shark relative abundance was identified in the Gulf of Alaska during the years 1989-2003. The aggregate risk of ending in an overfished condition in the Gulf of Alaska increased from 0% under a low exploitation rate scenario to 59% …

Bayesian Methods In Glaciology, Douglas Brinkerhoff

Geosciences

The problem of inferring the value of unobservable model parameters given a set of observations is ubiquitous in glaciology, as are large measurement errors. Bayes' theorem provides a unified framework for addressing such problems in a rigorous and robust way through Monte Carlo sampling of posterior distributions, which provides not only the optimal solution for a given inverse problem, but also the uncertainty. We apply these methods to three glaciological problems. First, we use Markov Chain Monte Carlo sampling to infer the importance of different glacier hydrological processes from observations of terminus water flux and surface speed. We find that …

Arctic Landscape Dynamics: Modern Processes And Pleistocene Legacies, Louise M. Farquharson

Geosciences

The Arctic Cryosphere (AC) is sensitive to rapid climate changes. The response of glaciers, sea ice, and permafrost-influenced landscapes to warming is complicated by polar amplification of global climate change which is caused by the presence of thresholds in the physics of energy exchange occurring around the freezing point of water. To better understand how the AC has and will respond to warming climate, we need to understand landscape processes that are operating and interacting across a wide range of spatial and temporal scales. This dissertation presents three studies from Arctic Alaska that use a combination of field surveys, sedimentology, …

Detection, Source Location, And Analysis Of Volcano Infrasound, Kathleen F. Mckee

Geosciences

The study of volcano infrasound focuses on low frequency sound from volcanoes, how volcanic processes produce it, and the path it travels from the source to our receivers. In this dissertation we focus on detecting, locating, and analyzing infrasound from a number of different volcanoes using a variety of analysis techniques. These works will help inform future volcano monitoring using infrasound with respect to infrasonic source location, signal characterization, volatile flux estimation, and back-azimuth to source determination. Source location is an important component of the study of volcano infrasound and in its application to volcano monitoring. Semblance is a forward …

Satellite Remote Sensing Of Active Wildfires In Alaska's Boreal Forest, Christine F. Waigl

Geosciences

This research addresses improvements to the detection and characterization of active wildfires in Alaska with satellite-based sensors. The VIIRS I-band Fire Detection Algorithm for High Latitudes (VIFDAHL) was developed and evaluated against existing active fire products from the Visible Infrared Imaging Radiometer Suite (VIIRS) and the Moderate Resolution Imaging Spectroradiometer (MODIS). This new algorithm is based on VIIRS 375 m spatial resolution imagery and was tuned using fires in Alaska's boreal forest. It provides improved fire detection of low-intensity fires, especially during daytime and at sensor zenith angles smaller than approximately 50° off nadir. Low-intensity active fires, which represent residual …

Parental Perceptions On The Impact Of Adhd Medication Regarding Children’S Inappropriate Behavior And Academic Performance, Amy Vest

CUP Ed.D. Dissertations

Centers for Disease Control and Prevention (2014) suggested that parenting a healthy child brings about a variety of challenges throughout life, however parenting a child diagnosed with Attention Deficit Hyperactive Disorder (ADHD) proves a daunting task inundated with unanswered questions and multitudes of stressful situations. The purpose of this research is to study parent perceptions of a child’s ADHD medication to determine if a relationship exists between the ADHD medication, inappropriate behavior and academic performance. The quantitative survey instrument provided the means to examine the significance of the child’s ADHD medication on one day of the parent’s choice within the …

The Role Of Brain Stem 5-Ht1a And Gaba-A Receptors In The Thermoregulatory Response To Hypoxic Stress, Alexander Schmidt

Senior Honors Projects, 2010-2019

Sudden Infant Death Syndrome (SIDS) is a leading cause of infant mortality. Alterations in brainstem development of Serotonin (5HT) and γ-aminobutyric acid (GABA) are linked to its cause. The sympathetic premotor neurons located in the Nucleus of the Raphe Pallidus (NRP) in the brainstem have both 5-HT1A and GABA-A receptor subtypes that mediate protective cardiovascular responses to environmental stress. It is hypothesized that alteration in these receptors at the NRP will also modify protective thermoregulatory responses to hypoxic stress such as hypothermia. Using aseptic techniques, male and female Sprague-Dawley rats (230-385g) were instrumented with radiotelemetry probes to non-invasively measure core …

Tetrameric Structure Of Beta-Amylase 2 (Bam2) In Arabidopsis Thaliana, Lauren Elizabeth Pope

Senior Honors Projects, 2010-2019

Plants store starch during the day for use at night. This process of transitory starch degradation is mostly attributable to the β-Amylase (BAM) family, which are starch exohydrolases that cleave the penultimate α-1,4 glycosidic bonds of starch to release maltose. BAM2 was recently characterized as a catalytically active, K⁺-requiring tetramer with sigmoidal kinetics and cooperativity. All other catalytically active BAMs display Michaelis-Menten kinetics, no cooperativity, and do not require salt, making BAM2’s characteristics intriguing. Due to a lack of a crystal structure, a monomeric homology model of BAM2 was generated using I-TASSER based on a BAM5 from soybean. …