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Full-Text Articles in Life Sciences

Dataset For The Environmental Risk Assessment Of Chlorpyrifos To Chinook Salmon In Four Rivers Of Washington State, United States, Wayne G. Landis, Valerie R. Chu, Scarlett Graham, Meagan J. Harris, April J. Markiewicz, Chelsea J. Mitchell, Katherine E. Stackelberg, John Stark Aug 2019

Dataset For The Environmental Risk Assessment Of Chlorpyrifos To Chinook Salmon In Four Rivers Of Washington State, United States, Wayne G. Landis, Valerie R. Chu, Scarlett Graham, Meagan J. Harris, April J. Markiewicz, Chelsea J. Mitchell, Katherine E. Stackelberg, John Stark

Environmental Sciences Faculty and Staff Publications

Data files available below.

This data set is in support of Landis et al (in press) The integration of chlorpyrifos acetylcholinesterase inhibition, water temperature and dissolved oxygen concentration into a regional scale multiple stressor risk assessment estimating risk to Chinook salmon in four rivers in Washington State, USA. DOI: 10.1002/ieam.4199. In this research We estimated the risk to populations of Chinook salmon (Oncorhynchus tshawytscha) due to chlorpyrifos (CH), water temperature (WT) and dissolved oxygen concentrations (DO) in four watersheds in Washington State, USA. The watersheds included the Nooksack and Skagit Rivers in the Northern Puget Sound, the ...


Optimizing Abalone Outplant Strategies Using Larval Haliotis Kamtschatkana In The San Juan Archipelago, Washington, Katherine Mills-Orcutt Jan 2019

Optimizing Abalone Outplant Strategies Using Larval Haliotis Kamtschatkana In The San Juan Archipelago, Washington, Katherine Mills-Orcutt

WWU Graduate School Collection

Prior studies testing the use of Haliotis kamtschatkana larvae as a means of stock enhancement in the San Juan archipelago have shown no success in inducing larvae to settle in densities required for successful reproduction. I conducted an experiment to test the effectiveness of new methods for outplanting larval abalone in hopes of creating a protocol Puget Sound Restoration Fund could use to restore wild populations. Using two sites within the San Juan archipelago, I outplanted abalone into pre-constructed larval abalone modules (LAMs) and sampled over four months, testing retention strategies. Three types of LAMs were used at each site ...


Functional Analysis Of Cyc2 In Microbial Mat Communities Of Mariana Arc And Back-Arc Hydrothermal Vents, Christina A. Turner Jan 2019

Functional Analysis Of Cyc2 In Microbial Mat Communities Of Mariana Arc And Back-Arc Hydrothermal Vents, Christina A. Turner

WWU Graduate School Collection

The primary production by Zetaproteobacteria at iron-rich vents of the Mariana Arc and back-arc supports high microbial diversity. In microaerophilic circumneutral pH, Zetaproteobacteria are able to produce energy by oxidizing ferrous iron (Fe2+) from the vent effluent with the presence of a key gene involved in their iron-oxidation, Cyc2, a fused cytochrome-porin. These genes are found in all Zetaproteobacteria known to date. This study combines molecular quantitative techniques with metagenomic analyses to enhance our confidence in gene quantification from environmental samples. The occurrence of cyc2 was quantified from microbial mat communities at NW Eifuku, NW Rota-1, Snail and Urashima ...


Exploring The Relationship Between Stress-Related Growth And Basic Psychological Needs Following Athletic Injuries, Samantha L. Macdonald Jan 2019

Exploring The Relationship Between Stress-Related Growth And Basic Psychological Needs Following Athletic Injuries, Samantha L. Macdonald

WWU Graduate School Collection

Approximately 8.6 million sport-related injuries occur yearly in the United States that cause a variety of physical and psychological outcomes. One positive psychological consequence after injury is stress-related growth (SRG), which is positive change experienced after undergoing something stressful. The aim of the present study was to investigate how the full model of basic psychological needs was related to SRG and explore sources of need satisfaction while injured. SRG and basic psychological need satisfaction and frustration was measured in 93 competitive adult athletes who suffered lower limb sport injuries within the past 5 years. Multiple regression analyses did not ...


Development Of Cryopreservation Methods For Sperm Of Pinto Abalone (Haliotis Kamtschatkana) For Conservation Aquaculture., Caitlin O'Brien Jan 2019

Development Of Cryopreservation Methods For Sperm Of Pinto Abalone (Haliotis Kamtschatkana) For Conservation Aquaculture., Caitlin O'Brien

WWU Graduate School Collection

The pinto abalone, Haliotis kamtschatkana, is an ecosystem engineer with cultural and ecological significance. Due to the dramatic 98% decline in populations, a ten-year recovery plan was enacted to bring levels of pinto abalone back from the brink of extirpation in the San Juan Archipelago, Washington. The focus of this study was to assist restoration efforts in creating self-sustaining populations by developing methods of cryopreservation for male pinto abalone sperm. My study evaluated three commonly used cryoprotectants, a series of freeze/thaw temperatures, and developed methods of quality assessment specific to pinto abalone. Animals were provided and cared for by ...


The Effects Of Hallux Valgus And Walking Speed On Dynamic Balance In Older Adults, Carolyn E. Barbee Jan 2019

The Effects Of Hallux Valgus And Walking Speed On Dynamic Balance In Older Adults, Carolyn E. Barbee

WWU Graduate School Collection

Hallux valgus (HV) contributes to deficits in static balance and increased fall risk in older adults. Very limited research has examined dynamic balance deficits in walking in this population. These individuals generally walk slowly, as balance challenge is lesser at slow speeds. The purpose of this study was to examine dynamic balance in older adults with HV compared to healthy controls at controlled slow and fast speeds. Nineteen older adults with HV and 13 healthy controls completed 5 continuous walking trials at 1.0 and 1.3 m·s-1 as whole body marker position and ground reaction force data ...


Effect Of Pedal Stance Width Manipulation Via Pedal Spacers On Lower Limb Frontal Plane Kinematics During Cycling, Andrew Fife Jan 2019

Effect Of Pedal Stance Width Manipulation Via Pedal Spacers On Lower Limb Frontal Plane Kinematics During Cycling, Andrew Fife

WWU Graduate School Collection

Anecdotal evidence suggests that frontal plane kinematics of the lower extremity may be an important aspect of bicycle fit, however, frontal plane adjustments are often overlooked during common fit procedures. The purpose of this study was to manipulate pedal stance width through the use of pedal spacers to determine their influence on frontal plane kinematics of the hip, knee, and ankle during cycling. Twenty-four young healthy subjects (12 female) recreational cyclists completed five minutes of pedaling at their preferred cadence and power output under three stance widths conditions: no spacer, 20 mm spacer, and 30 mm spacer. The pedaling cadence ...


The Effect Of A Brief Mindfulness Intervention On Free-Throw Shooting Performance Under Pressure, Nathan J. Wolch Jan 2019

The Effect Of A Brief Mindfulness Intervention On Free-Throw Shooting Performance Under Pressure, Nathan J. Wolch

WWU Graduate School Collection

Pressure situations in sport can be a source of anxiety for athletes (Craft, Magyar, Becker, & Feltz, 2003). Research indicates that a brief mindfulness training can improve math performance under pressure (Brunye et al., 2013); however, no known studies have examined the effects of mindfulness practice on an athletic performance under pressure. Therefore, this experiment investigated the effects of a brief mindfulness training on basketball free-throw shooting under pressure. Participants were 32 college-aged (Mage = 21.29), male competitive basketball players. Participants shot 20 free-throws in a low-pressure phase, then were pair-matched by free-throws made and randomly assigned to mindfulness (n = 16) or control (n = 16) conditions. Pressure was induced before participants listened to a 15-minute mindfulness or history of ...


Effects Of Deep Slow Breath Training On Performance And Recovery During High Intensity Interval Cycling, Andrew D. (Andrew David) Brown Jan 2019

Effects Of Deep Slow Breath Training On Performance And Recovery During High Intensity Interval Cycling, Andrew D. (Andrew David) Brown

WWU Graduate School Collection

The present investigation sought to delineate the effects of a six-week deep slow breathing (DSB) program on measures of cycling performance (mean power: MP), recovery (heart rate recovery: HRR, and expired carbon dioxide: VCO2), and pulmonary capacities (vital capacity: VC, forced expiratory volume: FEV1, and maximum voluntary ventilation: MVV). Twenty male cyclists were divided into training (n=10) and control (n=10) groups, where the training group completed a six-week DSB program in addition to their own training while the control group completed no breathe training. Participants completed two testing sessions, one before and one after the six-week ...


Fascia Thickness And Mechanical Demand At The Ankle Joint During Dance Jumps In Classically Trained Ballet Dancers, Sarah Perry Jan 2019

Fascia Thickness And Mechanical Demand At The Ankle Joint During Dance Jumps In Classically Trained Ballet Dancers, Sarah Perry

WWU Graduate School Collection

Ballet is an athletic activity that combines aesthetics and artistry with power and ­­­­­skill. One of the most athletic aspects of dance is observed during jumps. Many jumps in ballet involve takeoff from a single leg, but differ in propulsion direction. To assess differences in mechanical demand, two single leg jumps commonly trained in ballet were compared; a saut de chat (SDC) and a temp levé from a step (SLSJ). Fifteen female classically trained dancers with similar number of years of training (13.9 ± 5.0 years) were instrumented with lower body reflective markers and performed each jump three times ...


Spatiotemporal Diversity Of Alpine Snow Algae Communities In The Pacific Northwest, Rachael C. Mallon Jan 2019

Spatiotemporal Diversity Of Alpine Snow Algae Communities In The Pacific Northwest, Rachael C. Mallon

WWU Graduate School Collection

Snow algae are the dominant primary producers of snowy alpine environments and have recently been thrust into the public spotlight for contributing to glacial melt by decreasing snow albedo. These microbial communities are subject to extreme temperature regimes, high irradiance, low nutrient levels, and freeze-thaw cycles on daily, seasonal, and even long-term climatological changes. Although snow algae have been described on every continent, the spatiotemporal diversity of snow algae communities across snowy habitats has not been addressed. The natural geography and climate of the Pacific Northwest provides diverse snowy alpine ecosystems to study the effects of latitude, elevation, and precipitation ...


Trunk, Hip And Knee Motions During A Step-Down Test And Running In Patellofemoral Pain Individuals, Katie Olinger Jan 2019

Trunk, Hip And Knee Motions During A Step-Down Test And Running In Patellofemoral Pain Individuals, Katie Olinger

WWU Graduate School Collection

Context: A common knee injury in runners is patellofemoral femoral pain syndrome (PFPS). The step-down test (SDT) is used to analyze lower extremity motions in runners with PFPS because kinematics are similar for the SDT and running. Individuals with PFPS often experience altered kinematics when compared to healthy. However, there are no known studies that examine the relationship in kinematics between the SDT and running.

Objective: Examine the relationship between lower extremity kinematics of the knee, hip and trunk in runners with PFPS and healthy controls, during the midstance of running and during a SDT.

Patients or Other Participants: Sixteen ...


Protein Quality Control At The Endoplasmic Reticulum And Nucleus In Caenorhabditis Elegans, Daniel Hassell Jan 2019

Protein Quality Control At The Endoplasmic Reticulum And Nucleus In Caenorhabditis Elegans, Daniel Hassell

WWU Honors Program Senior Projects

Cells need proteins to carry out molecular functions, but proteins can become damaged or misfolded, which inhibits their function and can cause aggregation. Misfolded protein aggregation is associated with degenerative diseases in mammals. In Eukaryotic cells, chronically misfolded proteins can be destroyed by the Ubiquitin Proteasome System (UPS) as a way to prevent aggregation and disease. For my thesis work, I have investigated two pathways that participate in the UPS.

First, I investigate Endoplasmic Reticulum Associated Degradation (ERAD), a UPS pathway is active in the Endoplasmic Reticulum (ER) of eukaryotic cells. ERAD is well characterized in Saccharomyces cerevisiae (yeast), but ...


The Microbiome And Medicine: The Relationship Between Early-Life Colonization And Health Outcomes Such As Asthma And Allergies, Madeline May Jan 2019

The Microbiome And Medicine: The Relationship Between Early-Life Colonization And Health Outcomes Such As Asthma And Allergies, Madeline May

WWU Honors Program Senior Projects

Bacteria inhabit all surfaces of our bodies, and this symbiotic relationship is critical for our survival. The human gut, is colonized by bacteria who aide in digestion and other functions within our immune system. A healthy gut environment is characterized by a rich and diverse microbial ecosystem. The microbiome is fundamental in the proper functioning of our immune system and can influence many health outcomes. The gut microbiome has an essential role in infant health and development. In recent years, this long established relationship between beneficial bacteria and humans has been disrupted by environmental factors, antibiotics, maternal diet, delivery mode ...