Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2018

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 26881 - 26910 of 31359

Full-Text Articles in Entire DC Network

Small Mammal Microhabitat Use And Species Composition At A Wildlife Crossing Structure Compared With Nearby Forest, Lindsay Millward, Kristina Ernest Jan 2018

Small Mammal Microhabitat Use And Species Composition At A Wildlife Crossing Structure Compared With Nearby Forest, Lindsay Millward, Kristina Ernest

All Master's Theses

Expanding transportation corridors have fragmented ecosystems throughout the world, restricting the movement of organisms or acting as complete connectivity barriers. Wildlife crossing structures (WCS) can increase the permeability of roads, allowing animals to move safely between habitats. Small mammals are especially vulnerable to the effects of reduced connectivity because of their limited mobility; however, few studies have evaluated their use of WCS. This study was conducted at a WCS under I-90 near Snoqualmie Pass, Washington. Our objective was to evaluate the small mammal species composition at the wildlife undercrossing in comparison to adjacent restoration sites and to the nearby forest. …

Go to article

Preparing The Yucatan Black Howler Monkey For Its Return To The Wild: An Assessment Of Wildtracks' Approach To Rehabilitation And Reintroduction, Blanca Ponce Jan 2018

Preparing The Yucatan Black Howler Monkey For Its Return To The Wild: An Assessment Of Wildtracks' Approach To Rehabilitation And Reintroduction, Blanca Ponce

All Master's Theses

Nearly half of non-human primates are in danger of extinction due to the negative impact of anthropogenic activities. Among the species most negatively affected is the family Atelidae (Di Fiore, Link, & Campbell, 2011). For this reason, non-human primates remain a central focus in global conservation efforts. Some of these efforts include welfare-based rehabilitation, re-introduction, and habitat preservation (Guy et al., 2014). Re-introduction projects have contributed significantly to conservation efforts, improved the lives of individual organism, promoted community education, and conservation values (Baker, 2002). However, Seddon et al. (2007) reveals that often, very little development and post-release monitoring goes into …

Go to article

Modeling The Psychiatric Aspects Of Polycystic Ovary Syndrome And Induced Stress, Danielle Peecher Jan 2018

Modeling The Psychiatric Aspects Of Polycystic Ovary Syndrome And Induced Stress, Danielle Peecher

All Master's Theses

Polycystic ovary syndrome (PCOS) is an endocrine disorder in women that is characterized by excess testosterone and is associated with increased risk of infertility. Women with PCOS also show higher rates of depression and anxiety. Modeling PCOS in mice via administration of dihydrotestosterone (DHT) results in physiological alterations that are consistent with the physiological symptoms of PCOS in women. While some studies have investigated behavioral changes in PCOS mouse models, findings have varied. Thus, the current research examined whether a PCOS model with an additional stress factor resulted in behavioral changes. To create a stress condition, subjects were implanted with …

Go to article

Residential Solar In Washington State, Sam Pfeifer Jan 2018

Residential Solar In Washington State, Sam Pfeifer

All Master's Theses

Electricity generated through residential solar provides a low carbon source of electricity. However, diffusion of residential solar remains low across the United States. Growing this diffusion takes an understanding of localized uptake trends, which can focus policy and business efforts to help increase residential solar market penetration. This is the first research to investigate residential solar uptake in Washington State and to examine environmental education as a potential driver of residential solar uptake. Through a snapshot analysis which considers environmental, economic, education, and cultural variables the present research fills this gap. Triangulated results include mapping of variables, ordinary-least squares multiple …

Go to article

Enrichment Assessment For Geriatric African Old World Monkeys Under Human Care, Amanda E. Osborne Jan 2018

Enrichment Assessment For Geriatric African Old World Monkeys Under Human Care, Amanda E. Osborne

All Master's Theses

I proposed a study that determines whether enrichment regimes used for geriatric African Old World monkeys living under human care are effectively eliciting affiliative and active behaviors. I wanted to determine if alternating enrichment types used by the zoo staff were eliciting different social behaviors and locomotion in non-human primates based on different factors including ages, species, and sexes. My data collection took place at the Association of Zoos and Aquarium (AZA) accredited, Oregon Zoo in Portland, Oregon. I conducted my research from 11 June to 5 August 2017. I collected data from eight individuals of varying ages from three …

Go to article

Developing, Piloting, And Factor Analysis Of A Brief Survey Tool For Evaluating Food And Composting Behaviors: The Short Composting Survey, Jennie Norton Jan 2018

Developing, Piloting, And Factor Analysis Of A Brief Survey Tool For Evaluating Food And Composting Behaviors: The Short Composting Survey, Jennie Norton

All Master's Theses

Composting on a university campus may take a variety of forms. Sustainable approaches to waste management can be taught and supported through educational programs, peer-to-peer behavior modeling, and composting program interventions. Although peer-reviewed research on composting interventions is somewhat lacking, student interest in the topic is demonstrated by a range of exploratory senior projects and pilot interventions conducted at colleges across the United States and abroad. The purpose of this study was twofold: conduct an educational compost intervention pilot study and develop a survey tool to measure participant attitudes surrounding food behaviors and composting. The Compost Project pilot study focused …

Go to article

Comparisons Of Captive Gibbons’ (Hylobatidae) Intrapair Behaviors Indicative Of The Pair Bond, Samantha Jones Jan 2018

Comparisons Of Captive Gibbons’ (Hylobatidae) Intrapair Behaviors Indicative Of The Pair Bond, Samantha Jones

All Master's Theses

I aimed to better understand captive gibbons’ pair bonds by studying behaviors that may indicate the relationship’s quality. I completed this research at The Gibbon Conservation Center (GCC) in Santa Clarita, California and observed four species: eastern hoolock (Hoolock leuconedys), Javan (Hylobates moloch), and pileated (Hylobates pileatus) gibbons; and a siamang (Symphalangus syndactylus). I conducted research from 19 April- 29 May 2017 using scan and focal animal sampling. I focused on nine pairs, and recorded gibbons’ grooming bouts, affiliative/agonistic/play behaviors, mating, behavioral synchrony, locomotion, and proximity. Previous researchers focused on duetting in …

Go to article

Characterization Of Coacervate Systems Using Redox Sensitive Dyes, Caleb Kaiser Jan 2018

Characterization Of Coacervate Systems Using Redox Sensitive Dyes, Caleb Kaiser

All Master's Theses

Coacervates are systems that spontaneously form when two oppositely charged polyelectrolytes are mixed in a concentrated salt solution. When coacervates form, a biphasic equilibrium occurs in the sample with two phases present in the solution. The two phases are described as the dense phase and the lean phase, named after the amount of polyelectrolyte material in each phase. Coacervates have been topics of interest to researchers in a variety of fields including biomedical applications, drug delivery devices, and more. This thesis worked towards the characterization of coacervate systems on the molecular level by investigating the interaction of the polyelectrolytes and …

Go to article

Single And Pair Housed Chacma Baboons’ (Papio Ursinus) Response To Caregivers’ Use Of Species-Specific Behavior, Josefine Holm Jan 2018

Single And Pair Housed Chacma Baboons’ (Papio Ursinus) Response To Caregivers’ Use Of Species-Specific Behavior, Josefine Holm

All Master's Theses

Most captive primates suffer from stereotypical or abnormal behavior which can be reduced by implementing enrichment protocols. There is, however, often spatial or economic limitations to facilities’ enrichment programs, and implementing the most beneficial and cost-effective enrichment is therefore crucial to ensure the best welfare for captive primates. Social enrichment has been designated as the most effective type of enrichment, but often captive primates cannot be housed in social groups. Through this study, I wanted to determine if species-specific behavioral interactions between human caregivers and captive chacma baboons (Papio ursinus)would alter the baboons’ behaviors, and if these interactions could …

Go to article

Intertidal Habitat Utilization By Endangered Green Sturgeon (Acipenser Medirostris), Willapa Bay, Washington, Luke Stilwater Jan 2018

Intertidal Habitat Utilization By Endangered Green Sturgeon (Acipenser Medirostris), Willapa Bay, Washington, Luke Stilwater

All Master's Theses

This study looks at a portion of the designated critical habitat for the threatened southern distinct population segment of green sturgeon (Acipenser medirostris) in Willapa Bay, Washington. Willapa Bay is an intermediate size (258.7mi2) estuary on the southwest coast of Washington State, approximately 30 miles north from the mouth of the Columbia River. Recent studies completed by the National Marine Fisheries Service have shown that significant aggregations of green sturgeon in Willapa Bay occur during the late summer months, and foraging activity for burrowing ghost shrimp (Neotrypaea californiensis) is evidenced by small round feeding pits (30-60 cm diameter) in the …

Go to article

Derived Textual Control In Recreational Activity Schedules With Children With Autism, Holly Kolb Jan 2018

Derived Textual Control In Recreational Activity Schedules With Children With Autism, Holly Kolb

All Master's Theses

Activity schedules are commonly used with individuals with autism and other developmental disabilities. The primary advantage of activity schedules is that they help the learner complete tasks independently. One child with autism, who was familiar with using pictorial activity schedules, participated in this study. This study was done to examine the use of a conditional discrimination procedure for helping children with autism transfer from the use of a pictorial activity schedule to the use of a textual activity schedule. The participant was exposed to a conditional discrimination training procedure before being tested for the ability to follow a textual activity …

Go to article

Spike-Based Classification Of Uci Datasets With Multi-Layer Resume-Like Tempotron, Sami Abdul-Wahid Jan 2018

Spike-Based Classification Of Uci Datasets With Multi-Layer Resume-Like Tempotron, Sami Abdul-Wahid

All Master's Theses

Spiking neurons are a class of neuron models that represent information in timed sequences called ``spikes.'' Though predominantly used in neuro-scientific investigations, spiking neural networks (SNN) can be applied to machine learning problems such as classification and regression. SNN are computationally more powerful per neuron than traditional neural networks. Though training time is slow on general purpose computers, spike-based hardware implementations are faster and have shown capability for ultra-low power consumption. Additionally, various SNN training algorithms have achieved comparable performance with the State of the Art on the Fisher Iris dataset. Our main contribution is a software implementation of the …

Go to article

Ecological Effects Of Overwater Structures On Subtidal Kelp, Northern Puget Sound, Washington, E. Jhanek Szypulski Jan 2018

Ecological Effects Of Overwater Structures On Subtidal Kelp, Northern Puget Sound, Washington, E. Jhanek Szypulski

All Master's Theses

There are more than 9,000 overwater structures in the Puget Sound casting an estimated 9 km2 of anthropogenic created shade to the seafloor. Subtidal kelp, over 20 species in total, are abundant in the Sound but little data exists on how they are impacted by these overwater structures. The purpose of this research is to quantify various overwater structures’ impacts on the productivity and distribution of subtidal kelp beds and to create a subtidal kelp monitoring protocol. Three sets of floating docks and paired controls were sampled twice during the summer of 2017 for subtidal kelp distribution, biomass, photosynthetically …

Go to article

Embodying The Hyphen: An Ethnography On Korean Adoptees, Barbara Hammersberg Jan 2018

Embodying The Hyphen: An Ethnography On Korean Adoptees, Barbara Hammersberg

All Master's Theses

An estimated 150, 000 Korean children have grown up in culturally and racially different homes in the United States and other countries since the increase of transnational adoption in 1953. Due to the large number of Korean adoptees living in the U.S. the potential for ethnographic research is profound. Past studies have favored adoptive parents’ perspectives over that of Korean adoptees. This study aims to address that limitation in hopes of contributing to the growing trend of Korean- adoption ethnographic research led by Korean adoptees. Drawing on semi-structured interviews with six Korean-American adoptees living in the Seattle metropolitan area in …

Go to article

An Examination Of The In-Group Hypothesis In Facial Expression Inferences Using American And Indian Samples, Scott Lehrman Jan 2018

An Examination Of The In-Group Hypothesis In Facial Expression Inferences Using American And Indian Samples, Scott Lehrman

All Master's Theses

The relationship between culture and evaluations of facial expressions were assessed using American and Indian participants. Based on Ekman (1972) and others’ (cf. Elfenbein & Ambady, 2002) research that supports general cross-cultural agreement of facial expression evaluation, it was hypothesized that participants will be able to accurately evaluate a smiling face as happy and a scowling face as angry and that American participants would be more accurate overall due to the In-Group Hypothesis (Elfenbein & Ambady, 2002). Results showed that both cultures were able to accurately assess both facial expressions, although American participants had stronger evaluations across personality traits.

Go to article

Sex Differences In Glycosylated Hemoglobin In Mauritian Origin Long-Tailed Macaques (Macaca Fascicularis), Ricardo A. Fernandes Jan 2018

Sex Differences In Glycosylated Hemoglobin In Mauritian Origin Long-Tailed Macaques (Macaca Fascicularis), Ricardo A. Fernandes

All Master's Theses

Diabetes is a common metabolic condition that affects the body’s ability to maintain normal glycemic control. This disease process can occur in primates. Long-tailed macaques (Macaca fascicularis) range throughout Southeast Asia and were introduced to Mauritius approximately 400 years ago. This genetically unique population has been the source of a large proportion of captive individuals used in research and macaques are the preferred animal model for diabetic research. Additionally, long-tailed macaques are successful in exploiting habitat overlapping with humans. This urbanization results in changes in the normal diet of these animals which can contribute to poor health outcomes …

Go to article

Comparing Mothers’ And Fathers’ Helicopter Parenting As Predictors Of Self-Efficacy Among Emerging Adults In College, Jineui Kim Jan 2018

Comparing Mothers’ And Fathers’ Helicopter Parenting As Predictors Of Self-Efficacy Among Emerging Adults In College, Jineui Kim

All Master's Theses

This study examined the association between helicopter parenting and self-efficacy among emerging adults in college. While some existing research revealed that emerging adults could benefit from helicopter parenting, previous studies identified a wide range of negative outcomes of helicopter parenting on emerging adult’s psychological well-being. Also, previous research has shown that mothers and fathers play different roles in parenting. This study adds to understanding of this phenomenon by comparing the salience of mothers’ and fathers’ helicopter parenting as a predictor of self-efficacy among emerging adults in college. Data were collected from 175 participants between the ages of 18-24 by using …

Go to article

Advances In The Hyperspectral Imaging Microscope Spectrometer Method, And Application For Measuring The Spectral Reflectance Of Light Absorbing Aerosols From The South Cascades, Colorado Rockies, And Iceland, Melanie Swick Jan 2018

Advances In The Hyperspectral Imaging Microscope Spectrometer Method, And Application For Measuring The Spectral Reflectance Of Light Absorbing Aerosols From The South Cascades, Colorado Rockies, And Iceland, Melanie Swick

All Master's Theses

Snow and glaciers are receding at a global scale. Warming temperatures are often identified as the dominant cause of this decline; however, deposition of light absorbing aerosols (LAA), including black carbon, mineral dust and organics onto snow and glacier surfaces can be an even larger driver of melt in some regions (Skiles et al., 2012). Attempts to partition the relative contribution of different types of LAA to snow and glacier melt has been limited by the uncertainties in the LAA optical properties (Kaspari et al., 2014). A new hyperspectral imaging microscope spectrometer (HIMS) method was recently developed to measure LAA …

Go to article

Sign Modulation By Chimpanzees To Produce Interrogatives, Kailie Dombrausky Jan 2018

Sign Modulation By Chimpanzees To Produce Interrogatives, Kailie Dombrausky

All Master's Theses

Native signers of American Sign Language produce interrogatives by holding signs for an extended duration while employing the questioning look. The questioning look is defined as raised eyebrows, a tilted head, and direct eye contact maintained for the duration of the utterance. Chimpanzees who communicate using signs have demonstrated modulation of signs including held sign, raised brow, and eye gaze. The present study used archived video data to compare the duration of signs when the chimpanzees did or did not employ the questioning look. In both single and multi-sign utterances, the chimpanzees held their signs for a mean of 0.6 …

Go to article

Evaluating Floodplain Hydrologic Connectivity, Yakima River, Wa, Cristopher Morton Jan 2018

Evaluating Floodplain Hydrologic Connectivity, Yakima River, Wa, Cristopher Morton

All Master's Theses

River side-channels provide habitat for threatened fish, and restoring such habitats is a goal of resource managers. Resource managers use side-channel reconnection projects to increase the quality and quantity of aquatic floodplain habitat, and evaluating the effectiveness of reconnection is a crucial and often neglected part of these projects. The purpose of this research was to collect baseline data to determine if and how floodplain connectivity affects water quality and quantity in side-channel habitat on the Yakima River. This research compared seasonal differences in habitat quality between connected and disconnected channels by evaluating bi-weekly measurements of surface water quality and …

Go to article

Sanctifcation And Cheating Among Emerging Adults, Scott Braithwaite, Paige Mcallister, Elena Henderson, Meghan Maddock, Krista Dowdle, Frank D. Fincham Jan 2018

Sanctifcation And Cheating Among Emerging Adults, Scott Braithwaite, Paige Mcallister, Elena Henderson, Meghan Maddock, Krista Dowdle, Frank D. Fincham

Faculty Publications

Cheating—a general term for extradyadic romantic or sexual behavior that violates expectations in a committed romantic relationship—is common and leads to a number of poor outcomes. Religion has historically infuenced conceptions of romantic relationships, but societal attitudes about religion are in fux as many seek to retain spirituality even as afliations with formal religion decrease. The present study evaluated a potential predictor of cheating that is more spiritual than formally religious, the “psychospiritual” concept of relationship sanctifcation (i.e., the idea that one’s relationship itself is sacred). In a sample of college students in committed relationships (N=716), we found that higher …

Go to article

Violent Video Games, Externalizing Behavior, And Prosocial Behavior: A Five-Year Longitudinal Study During Adolescence, Sarah M. Coyne, Wayne A. Warburton, Lee W. Essig, Laura A. Stockdale Jan 2018

Violent Video Games, Externalizing Behavior, And Prosocial Behavior: A Five-Year Longitudinal Study During Adolescence, Sarah M. Coyne, Wayne A. Warburton, Lee W. Essig, Laura A. Stockdale

Faculty Publications

Decades of research on the effects of media violence have examined associations between viewing aggressive material in the media and aggression and prosocial behavior. However, the existing longitudinal studies have tended to exclusively examine aggression and prosocial behavior as outcomes, with a limited range of potential mediators. The current study examines associations between playing violent video games and externalizing and prosocial behavior over a 5-year period across adolescence. Additionally, the study examines potential mediators of these associations, including empathic concern, benevolence, and self-regulation. Participants included 488 adolescents (MAge of child at Wave 1 􏰀13.83, SD 􏰀 0.98) and their parents, …

Go to article

Fish Sentience Denial: Muddying The Waters, Lynne U. Sneddon, Javier Lopez-Luna, David C.C. Wolfenden, Matthew C. Leach, Ana M. Valentim, Peter J. Steenbergen, Nabila Bardine, Amanda D. Currie, Donald M. Broom, Culum Brown Jan 2018

Fish Sentience Denial: Muddying The Waters, Lynne U. Sneddon, Javier Lopez-Luna, David C.C. Wolfenden, Matthew C. Leach, Ana M. Valentim, Peter J. Steenbergen, Nabila Bardine, Amanda D. Currie, Donald M. Broom, Culum Brown

Animal Sentience

Recent empirical studies have reported evidence that many aquatic species, including fish, cephalopods and crustaceans, have the capacity for nociception and pain, and that their welfare should be taken into consideration. Some sceptics, rejecting the precautionary principle, have denied that any study demonstrates pain or other aspects of sentience in fish. This target article discusses some of the scientific shortcomings of these critiques through a detailed analysis of a study exploring nociception and analgesia in larval zebrafish.

Go to article

Defining Denial And Sentient Seafood, Jennifer Jacquet Jan 2018

Defining Denial And Sentient Seafood, Jennifer Jacquet

Animal Sentience

Sneddon et al. address the scientists who reject the empirical evidence on fish sentience, calling them “sceptics” and their work “denial”. This is the first article to frame the question of fish sentience in these terms, and it provides an obvious opening for social science and humanities research in the science of fish sentience. It is also worth asking what practical changes in the lives of fish might arise from the mounting evidence of their sentience. I suggest that the relationship between sentience and our sense of moral obligation is not as clear as we often assume.

Go to article

Jealousy In Dogs? Evidence From Brain Imaging, Peter Cook, Ashley Prichard, Mark Spivak, Gregory S. Berns Jan 2018

Jealousy In Dogs? Evidence From Brain Imaging, Peter Cook, Ashley Prichard, Mark Spivak, Gregory S. Berns

Animal Sentience

Domestic dogs are highly social and have been shown to be sensitive not only to the actions of humans and other dogs but to the interactions between them. We used the C-BARQ scale to estimate dogs’ aggressiveness, and we used noninvasive brain imaging (fMRI) to measure activity in their amygdala (an area involved in aggression). More aggressive dogs had more amygdala activation data while watching their caregiver give food to a realistic fake dog than when they put the food in a bucket. This may have some similarity to human jealousy, adding to a growing body of evidence that differences …

Go to article

Finding The Green-Eyed Monster In The Brain Of A Dog, Peter Singer Jan 2018

Finding The Green-Eyed Monster In The Brain Of A Dog, Peter Singer

Animal Sentience

That dogs show behavior suggestive of jealousy has long been known and has been demonstrated under controlled conditions. Cook et al. have now shown arousal in the amygdala when dogs see a caregiver feeding another dog. This finding has ethical significance in two respects. First, the consideration shown by the investigators for the welfare of their experimental subjects sets an example for other researchers using animals. Second, the greater understanding of the emotional lives of animals should lead to more concern for their needs.

Go to article

Jealousy, Competition, Or A Contextual Cue For Reward?, Thomas R. Zentall Jan 2018

Jealousy, Competition, Or A Contextual Cue For Reward?, Thomas R. Zentall

Animal Sentience

Emotions are difficult to assess, even in humans. The attribution of jealousy in an animal like a dog is especially difficult because performance of a particular behavior in the context of another animal receiving a reward may not be easily distinguishable from intra-species competition or simply a response to a contextual cue for the availability of reward. The authors provide distinguishing evidence in the form of fMRI data to show that in the presence of a “fake” dog being fed, there is bilateral activation in the amygdala, an area associated with anxiety, anger, fear, and even jealousy in humans.

Go to article

On Jealousy, Envy, Sex Differences And Temperament In Humans And Dogs, Eddie Harmon-Jones, Sylvia K. Harmon-Jones Jan 2018

On Jealousy, Envy, Sex Differences And Temperament In Humans And Dogs, Eddie Harmon-Jones, Sylvia K. Harmon-Jones

Animal Sentience

Cook, Prichard, Spivak, and Berns (2018) find that dogs’ levels of trait aggression are positively correlated with their amygdala activation when observing their caregivers giving a food to a fake dog. The authors conclude that this may provide neural evidence in dogs for the experience of jealousy, an emotion that some psychologists consider to be unique to humans. Here we explain the difference between the emotions of jealousy and envy, suggesting some ideas for future experiments that may help disentangle the experience of jealousy from that of envy in dogs. We also propose ideas for future research that may yield …

Go to article

Can A Dog Be Jealous?, Yaoguang Jiang, Annamarie W. Huttunen, Michael L. Platt Jan 2018

Can A Dog Be Jealous?, Yaoguang Jiang, Annamarie W. Huttunen, Michael L. Platt

Animal Sentience

Whether humans alone experience complex emotions like jealousy or envy remains hotly debated, partly because of the difficulty of measuring them without a verbal report. Cook, Berns and colleagues use functional brain imaging to identify in dogs neural responses very similar to those evoked by jealousy in humans. When dogs see their caregiver reward a facsimile dog, their amygdala is activated and the strength of this response predicts aggressive behavior — just as jealousy leads to aggression in humans. The authors conclude that dogs feel something very similar to human jealousy. This novel and creative study tackles one of the …

Go to article

Understanding Dogs' Neural Responses In A Food-Giving Paradigm, Zachary A. Silver, Laurie R. Santos Jan 2018

Understanding Dogs' Neural Responses In A Food-Giving Paradigm, Zachary A. Silver, Laurie R. Santos

Animal Sentience

In their target article, Cook et al. provide exciting new insights into dogs’ neural responses when they watch their caregivers giving food to a fake dog or placing it into a bucket. The use of fMRI in awake and unrestrained dogs is tremendously valuable for understanding canine emotionality. We worry, however, that it is too soon to conclude that the reported pattern of amygdala activation corresponds to a specific emotion. Further testing will be essential to determine whether this amygdala activation is indeed an expression of jealousy.

Go to article

First Prev Next Last