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Sound And Human Impacts On Beluga Whales In Cook Inlet, Alaska, Rachael E. Blevins

Fisheries

Cook Inlet beluga whales (CIBs) are a geographically and genetically isolated population residing in Cook Inlet, Alaska year round. The population declined by approximately 50% between 1994 and 1998 and was listed as endangered under the Endangered Species Act in 2008. The original decline was attributed to overharvest; however, the population has failed to rebound despite the virtual absence of harvest since 1998. This suggests that other factors, such as declining prey availability, increased predation, contaminants, disease, climate change, catastrophic events, habitat loss, unauthorized take, and underwater noise pollution, may be limiting the population's recovery. The goal of this dissertation …

Commencement Program, December (2015), Minnesota State University Moorhead

Commencement Programs

No abstract provided.

Chancellor's Report 2015-12, Richard Caulfield

Chancellor's Report

No abstract provided.

A "Case" Study On Developing Science Communication And Outreach Skills Of University Graduate Student Researchers In Alaska, Molly E. Tedesche, Laura Conner, Jennifer Danielson

Research Posters

Well rounded scientific researchers are not only experts in their field, but can also communicate their work to a multitude of various audiences, including the general public and undergraduate university students. Training in these areas should ideally start during graduate school, but many programs are not preparing students to effectively communicate their work. Here, we present results from the NSF-funded CASE (Changing Alaska Science Education) program, which was funded by NSF under the auspices of the GK-12 program. CASE placed science graduate students (fellows) in K-12 classrooms to teach alongside of K-12 teachers with the goal of enhancing communication and …

Spatial And Temporal Patterns Of Epibenthic Community And Food Web Structures In The Chukchi Sea Between 2004-2012, Carlos Serratos

Marine Biology

The Chukchi Sea shelf, an area undergoing rapid environmental change and concurrently increasing human activity, supports communities of epibenthic organisms and food webs that are sustained by high primary productivity in the overlying water column and are influenced by physical environmental conditions. The goal of this study was to characterize these epibenthic communities (using trawl hauls) and benthic food webs (using carbon and nitrogen stables isotopes) in 2009 and 2012 and to identify persisting or changing patterns between 2004, 2009 and 2012 as part of NOAA's Russian-American long-term Census of the Arctic (RUSALCA) program. Fifteen stations each were sampled in …

Investigating Marine Particle Distributions And Processes Using In Situ Optical Imaging In The Gulf Of Alaska, Jessica S. Turner

Marine Biology

The Gulf of Alaska is a seasonally productive ecosystem surrounded by glaciated coastal mountains with high precipitation. With a combination of high biological production, inputs of suspended sediments from glacial runoff, and contrasting nutrient regimes in offshore and shelf environments, there is a great need to study particle cycling in this region. I measured the concentrations and size distributions of large marine particles (0.06-27 mm) during four cruises in 2014 and 2015 using the Underwater Vision Profiler (UVP). The UVP produces high resolution depth profiles of particle concentrations and size distributions throughout the water column, while generating individual images of …

Influence Of Physical And Biological Oceanography On The Structure Of The Seabird Community In The Northeastern Chukchi Sea, Adrian E. Gall

Marine Biology

The Chukchi Sea is losing seasonal ice cover as global temperatures rise, facilitating human access to the region for activities such as oil and gas exploration, shipping, and tourism. Processes and responses to environmental change by marine ecosystems are often challenging to quantify because they are hidden under water. Seabirds, however, offer visible evidence of the health and status of marine ecosystems. I studied the community structure, variability in abundance and distribution, and habitat associations of seabirds in the eastern Chukchi Sea. My results provide insights into the influence of climate change on seabirds and a benchmark against which to …

Wsu Board Of Trustees Meeting Minutes, December 17-18, 2015

Board of Trustees Minutes

Minutes from the Wright State University Board of Trustees Meeting held on December 17-18, 2015.

Ubiquitin Goes Green, Zhihua Hua, Richard D. Vierstra

Biology Faculty Research

Chloroplasts depend on the nucleus for much of their proteome. Consequently, strong transcriptional coordination exists between the genomes, which is attuned to the developmental and physiological needs of the organelle. Recent studies highlight that the post-translational modifier ubiquitin adds another layer to plastid homeostasis and even helps eliminate damaged chloroplasts.

Dawn Of A New Era, Edwin Smith

University of Mississippi News

School of Engineering's first female department chair taking CIS to another level

The Ecological Importance Of Brachiopods Versus Bivalves In The Paleozoic: Taphonomy, Biomass, And Energy Use, Shannon (Shin-Nan) Hsieh

Master's Theses

Brachiopods have commonly been considered more important than bivalves in Paleozoic ecosystems due to their greater global diversity and greater abundance in many fossil assemblages. New sampling-standardized diversity curves verify that brachiopods were more diverse than bivalves at the global level in the Paleozoic; they declined in the Permian-Triassic extinction, largely recovered, then faded away later in the Mesozoic. However, the subordinate ecological status of bivalves within local Paleozoic ecosystems has been challenged on two fronts. First, bivalve abundance may be underestimated due to preferential dissolution of aragonitic shells. Second, bivalve contribution to ecosystem function may be underestimated by abundance …

Predictors Of Improvement In Risk Reduction Skills Among Hiv Infected Drug Users, Rashmi Dahal

Master's Theses

Background and Objective: Unsafe needle use and unprotected sex are behaviors that have been associated with HIV transmission. Evidence-based behavioral intervention approaches are widely available for preventing HIV transmission, but neurocognitive impairment (NCI) may impede many intervention participants’ capacity to fully benefit from such interventions, leaving them vulnerable to HIV transmission risk. This study examines the impact of NCI on specific intervention outcomes expected to be enhanced through intervention participation.

Methods: Participants were 74 HIV+ opioid-dependent persons participating in methadone maintenance drug treatment and who reported drug- or sex- related HIV risk behavior. Using regression analyses, NCI, HIV knowledge (information), …

Assessing Foliar Ascorbate Content In A Rice Diversity Panel And In Selected Mapping Population Lines With Varying Levels Of Seedling Cold Tolerance, Sonia Elizabeth Castillo Gonzalez

Student Theses and Dissertations

Rice is economically, culturally, and socially important to many people in the world. Arkansas is the main rice producer in the USA. Climate change continues to increase the incidence of abiotic stresses such as cold, heat, drought, water excess, and soil salinity. These stresses pose a particular challenge to rice cultivation. Rice has lower yields under cold stress, particularly when plants are exposed to cold at the seedling and reproductive stages. Early spring plantings and field irrigation with underground cold water expose rice seedlings to cold stress. Previous studies in Arabidopsis thaliana have shown that lines engineered to have elevated …

Coarse Bedload Routing And Dispersion Through Tributary Confluences, Kurt Imhoff, Andrew C. Wilcox

Geosciences Faculty Publications

Sediment routing fundamentally influences channel morphology and propagation of disturbances. However, the transport and storage of bedload particles in headwater channel confluences, which may be significant nodes of the channel network in terms of sediment routing, morphology, and habitat, is poorly understood. To characterize routing processes through confluences of headwater channels, we investigate how sediment routing patterns through headwater confluences compare to those described in low-gradient gravel bed river systems, and how confluences affect the dispersive behavior of coarse bedload particles compared to non-confluence reaches. We address these questions with a field tracer experiment using passive-integrated transponder and radio-frequency identification …

Development And Preliminary Evaluation Of A Spray Deposition Sensing System For Improving Pesticide Application, Melissa A. Kesterson, Joe D. Luck, Michael P. Sama

Biosystems and Agricultural Engineering Faculty Publications

An electronic, resistance-based sensor array and data acquisition system was developed to measure spray deposition from hydraulic nozzles. The sensor surface consisted of several parallel tin plated copper traces of varying widths with varying gap widths. The system contained an embedded microprocessor to monitor output voltage corresponding to spray deposition every second. In addition, a wireless module was used to transmit the voltage values to a remote laptop. Tests were conducted in two stages to evaluate the performance of the sensor array in an attempt to quantify the spray deposition. Initial tests utilized manual droplet placement on the sensor surface …

Developing An Algal Biofilm Filtration System For The Remediation Of Nutrient Pollution In Freshwater Ponds, Danielle Delp

Theses

Anthropogenic nutrient pollution is one of the most serious threats facing aquatic systems in modern times. Pollution with compounds containing nitrogen and phosphorous encourages rapid development of autotrophic biomass, or blooms, that severely degrade the quality of an aquatic system both as a habitat for organisms and as a water resource for human use. In freshwater ponds, the widespread need for treatment of nutrient pollution and resulting blooms has resulted in the growth of a large industry dedicated to pond management and maintenance. These companies utilize a variety of chemical and non-chemical treatments to prevent the growth of blooms or …

Monitoring Cloud-Prone Complex Landscapes At Multiple Spatial Scales Using Medium And High Resolution Optical Data: A Case Study In Central Africa, Bikash Basnet

Theses

Tracking land surface dynamics over cloud-prone areas with complex mountainous terrain and a landscape that is heterogeneous at a scale of approximately 10 m, is an important challenge in the remote sensing of tropical regions in developing nations, due to the small plot sizes. Persistent monitoring of natural resources in these regions at multiple spatial scales requires development of tools to identify emerging land cover transformation due to anthropogenic causes, such as agricultural expansion and climate change. Along with the cloud cover and obstructions by topographic distortions due to steep terrain, there are limitations to the accuracy of monitoring change …

Environmental And Density-Dependent Modulation Of Type Iii Secretion System Genes In Pseudomonas Syringae Pv. Tomato Dc3000, Jennifer Louise Stauber

Theses

Pseudomonas syringae pathovar tomato strain DC3000 is a model bacterial plant-pathogen that utilizes a dedicated protein export apparatus, the type III secretion system (T3SS), to translocate virulence proteins called effectors directly into host cells. Because effectors suppress plant immune responses, activation of the T3SS is critical upon entry into the host. The P. syringae T3SS is controlled by the hrpRS-hrpL regulatory cascade, and is activated quickly by specific conditions. Different environmental stimuli have been reported to modulate T3SS gene expression in culture, however it is unclear how each signal affects hrpRS or hrpL. My objective was to identify how environmental …

Four Undergrads Receive Study Abroad Scholarships, Laura Perille

UNH Today Archive

No abstract provided.

Professional Values And Conflict Among Social Workers In Prisons: An Examination Of Role Stress, Strain, And Job Satisfaction In Working With Inmates With Mental Illness And/Or Substance Use Disorders, Hiroki Toi

Doctoral Dissertations

As the incarcerated population increases in the United States, especially those with mental illness and/or substance use disorders, social workers are expected to assume essential discharge planning roles in assisting prisoners’ transition back into the community. Social workers, like other prison professionals, experience value dilemmas and difficulties in ethical decision-making due to incompatibility between professional values and the practices in correctional settings. Often, social workers in prisons face role problems mainly represented by role incongruity, role ambiguity, and role conflict. Such stress creates role strain, which may profoundly affect job satisfaction. Job satisfaction of staff is important because it affects …

Iodp Expedition 347baltic Sea Basin Paleoenvironment And Biosphere, Thomas Andrén, Bo Barker Jørgensen, Carol Cotterill, Sophie Green, Elinor Andrén, Jeanine L. Ash, Thorsten Bauersachs, Barry Cragg, Anne-Sophie Fanget, Annick Fehr, Wojciech Granoszewski, Jer­Oen Groeneveld, Dalton S. Hardisty, Emilio Herrero-Bervera, Outi Hyttinen, Jørn Bo Jensen, Sean Johnson, Michael Kenzler, Aarno Kotilainen, Ulrich Kotthoff, Ian Pg Marshall, E. Martin, S. Obrochta, Sandra Passchier, Nadine B. Quintana Krupinski, Natascha Riedinger, Caroline Slomp, Ian Snowball, Anna Stepanova, Sarah Strano

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

The Integrated Ocean Drilling Program (IODP) expedition 347 cored sediments from different settings of the Baltic Sea covering the last glacial-interglacial cycle. The main aim was to study the geological development of the Baltic Sea in relation to the extreme climate variability of the region with changing ice cover and major shifts in temperature, salinity, and biological communities. Using the Greatship Manisha as a European Consortium for Ocean Research Drilling (ECORD) mission-specific platform, we recovered 1.6 km of core from nine sites of which four were additionally cored for microbiology. The sites covered the gateway to the North Sea and …

Precipitation In The Alaska Central Arctic, Joel W. Homan

Engineering

Environmental change currently stimulates much of the interest in high-latitude hydrologic studies, as northern areas are expected to be strongly impacted by warming. This thesis consists of a comprehensive assessment of solid and liquid precipitation throughout the Alaska Central Arctic. The founding hypothesis are: (1) the spatial distribution of snow and warm season precipitation are linearly related to elevation, (2) annual precipitation inputs are dominated by warm season precipitation when potential moisture sources are ice free, and (3) moisture responsible for snow-producing storms is primarily advected through atmospheric circulation. To verify the validity of the hypothesis, the temporal variability and …

A Comparison Of High-Intensity Power Training And Graded Treadmill Exercise, Eric Peter Sparks

Research Papers

The purpose of this study was to investigate acute blood lactate concentration, heart rate, blood pressure, and rating of perceived exertion following two different types of exercise: a high intensity power training exercise test and a graded treadmill exercise test. The hypothesis was that the HIPT exercise test would yield higher levels of blood lactate, heart rate, blood pressure, and RPE, immediately post exercise when compared to a graded treadmill exercise test. Ten college-aged participants with a body mass index /m², blood pressure <140/90 mmHg, no overt cardiovascular disease, no cardiovascular medications, and no use of tobacco products were included in the study. All participants had a general fitness and training level that allowed them to perform the exercise bouts without any hesitation. Subjects participated in two exercise sessions on separate occasions. A graded treadmill exercise test occurred with the subjects walking on the treadmill until the self-stated desire to stop or until five stages of increased speed and intensity had occurred. In the second meeting, subjects completed a prescribed high-intensity power training exercise test. Heart rate (HR), rating of perceived exertion (RPE), blood pressure (BP), and blood lactate concentration were all obtained before and immediately following each training session, as well as immediately following each stage of the graded treadmill exercise test. Oxygen uptake was obtained during the graded treadmill exercise test. After both tests were conducted, the high intensity power training exercise test showed a higher percentage of blood lactate concentration at its conclusion when compared to the graded treadmill exercise test with lower final average values BP, HR and RPE. In conclusion HIPT exercise yields higher blood lactate concentrations compared to graded treadmill exercise with a lower blood pressure, heart rate, and perceived exertion.

First Report On Hottentotta Tamulus (Scorpiones: Buthidae) From Sri Lanka, And Its Medical Importance, Kithsiri B. Ranawana, Nandana P. Dinamithra, Sivapalan Sivansuthan, Ironie I. Nagasena, František Kovařík, Senanayake A.M. Kularatne

Euscorpius

A scorpion species proved to be lethal to humans was recently recorded from Jaffna Peninsula (9°40'0''N 80°0'0''E, mean annual temperature 26.2°C), in the northern dry zone of Sri Lanka. This species is morphologically different from all other known scorpions in Sri Lanka. The species was identified as Hottentotta tamulus (Scorpiones: Buthidae), which is commonly found in Maharashtra, India, the closest mainland to Sri Lanka. Small children and housewives were most of the victims. Soon after sting, the patient develops intense pain at the site of sting followed by numbed sensation. Dominant clinical effects include excessive sweating, agitation and palpitation. Blood …

Another New Sub-Fossil Species Of Scorpion Of The Genus Palaeogrosphus Lourenço, 2000 From Malagasy Copal (Scorpiones: Buthidae), Wilson R. Lourenço, Hans Henderickx

Euscorpius

Palaeogrosphus jacquesi sp. n., the third known sub-fossil scorpion from Malagasy copal, is described. This is the fourth record of a sub-fossil scorpion in copal. The copal specimen was collected in the mines of the region of Sambava, Province of Antsiranana in the northeast of Madagascar. It belongs to the genus Palaeogrosphus Lourenço, 2000, described from Madagascar, and now represented by two sub-fossil species.

Review Of The Genus Neobuthus Hirst, 1911 With Description Of A New Species From Ethiopia (Scorpiones: Buthidae), František Kovařík, Graeme Lowe

Euscorpius

We define key characters distinguishing between the genera Neobuthus Hirst, 1911 and Butheolus Simon, 1882. Butheolus ferrugineus Kraepelin, 1898 is transferred to the genus Neobuthus which includes only African species, in contrast to the genus Butheolus which now includes only species inhabiting the Arabian Peninsula. Neobuthus awashensis sp. n. from Ethiopia is described and compared with two closely related species, Neobuthus ferrugineus (Kraepelin, 1898) comb. n. and Neobuthus berberensis Hirst, 1911. Recent collection of 78 specimens enabled direct comparisons of all three closely related species from their respective localities and discovery of characters hitherto not apparent from discolored specimens preserved …

Scorpions Of Iran (Arachnida, Scorpiones). Part Viii. Fars Province, Shahrokh Navidpour, Victor Fet, František Kovařík, Michael E. Soleglad

Euscorpius

18 species of scorpions belonging to three families are reported from the Fars Province of Iran. Of these, four species are recorded from the province for the first time: Compsobuthus persicus Navidpour, Soleglad, Fet et Kovařík, 2008, Mesobuthus eupeus persicus (Pocock, 1899), Odontobuthus bidentatus Lourenço et Pézier, 2002, and Scorpio maurus townsendi (Pocock, 1900). Also presented is a key to all species of scorpions found in the province.

A Novel Thermal Gradient Design For Small-Bodied Ectotherms, Michael M. Webber, Robert W. Bryson Jr.

Euscorpius

For ectothermic organisms, environmental temperatures can influence a variety of life history traits. Experimental thermal gradients created in the laboratory are useful tools to examine the thermoregulatory behaviors of these organisms. Here, we provide details on the construction of a novel, cost-effective thermal gradient to study thermoregulatory behaviors in small-bodied nocturnal ectotherms.

Complete Issue 49(1)

Speaker & Gavel

Complete digitized issue (volume 49, issue 1) of Speaker & Gavel.

When Water Works: A Case Study Of Campaign Tears And The 2008 Presidential Election, Ryan Neville-Shepard

Speaker & Gavel

Since the fall of Senator Ed Muskie in the 1972 Democratic primary there has been an unwritten rule that political candidates should avoid crying. However, four presidential candidates cried in ten separate incidents during the 2008 election cycle, with only three episodes receiving negative attention. Addressing this inconsistency in the “Muskie rule,” in this essay I argue the effect of crying on a political candidate’s image is not well understood. As such, this essay develops and applies a framework for comprehending when crying will likely trigger a public relations crisis, and when it might actually benefit a candidate.