Life Sciences Commons^™

Growth, Lipid Production And Biodiesel Potential Of Chromulina Freiburgensis Dofl., An Acidophilic Chrysophyte Isolated From Berkeley Pit Lake, June E. Mohler Mitman

Graduate Theses & Non-Theses

Microalgae remain a promising, but underdeveloped source of lipids for sustainable biodiesel. Some of the obstacles to cost-effective commercial-scale production have been culture contamination and expensive harvest methods. A chrysophyte isolated from Berkeley Pit Lake and identified as Chromulina freiburgensis, was found to grow rapidly in a pH 2.5 liquid medium and to amass numerous intracellular lipid bodies. This research addresses the scarcity of published knowledge on the topic of chrysophyte species as potential lipid sources for biodiesel. It investigates how growth phase, culture conditions, and harvest timing influence the quantity and composition of lipids produced by this alga ...

Recent Decline Of Lowland Populations Of The Western Gray Squirrel In The Los Angeles Area Of Southern California, Daniel S. Cooper, Alan Muchlinski

Bulletin of the Southern California Academy of Sciences

We provide an overview of the distribution of lowland and otherwise isolated populations of the western gray squirrel (Sciurus griseus) in the Los Angeles area of southern California, an area that has experienced a recent and ongoing invasion by the non-native eastern fox squirrel (Sciurus niger), an urban-adapted species introduced a century ago. Away from its strongholds in the western Santa Monica Mountains, San Gabriel Mountains, and Santa Ana Mountains, the western gray squirrel is resident locally in both the Santa Susana and the Verdugo Mountains, in Griffith Park, in low hills at the eastern periphery of the San Gabriel ...

An Orange Fluorescent Protein Tagging System For Real-Time Pollen Tracking, J. Rice, R. Mundell, R. Millwood, O. Chambers, L. Abercrombie, H. Davies, C. Stewart

C. Neal Stewart Jr.

Background Monitoring gene flow could be important for future transgenic crops, such as those producing plant-made-pharmaceuticals (PMPs) in open field production. A Nicotiana hybrid (Nicotiana. tabacum × Nicotiana glauca) shows limited male fertility and could be used as a bioconfined PMP platform. Effective assessment of gene flow from these plants is augmented with methods that utilize fluorescent proteins for transgenic pollen identification. Results We report the generation of a pollen tagging system utilizing an orange fluorescent protein to monitor pollen flow and as a visual assessment of transgene zygosity of the parent plant. This system was created to generate a tagged ...

Effect Of External Energy On The Atomic, Crystalline, And Powder Characteristics Of Antimony And Bismuth Powders, Mahendra Kumar Trivedi

Mahendra Kumar Trivedi

Next to atoms and molecules the powders are the smallest state of matter available in high purities and large quantities. The effect of any external energy on the shape, morphology and structure can thus be studied with relative ease. The present investigation deals with the effect of a non-contact external energy on the powders of antimony and bismuth. The characteristics of powders treated by external energy are compared with the as received powders (control). The average particle sizes, d50 and d99, the sizes below which 99% of the particles are present showed significant increase and decrease indicating that the energy ...

The Study Of High Intensity Interval Training's Effect On Enjoyment, Keali Mari

Theses/Capstones/Creative Projects

This study assessed participant’s level of enjoyment in high-intensity training over moderate intensity-training. High intensity interval training is defined as short bouts of exercise performed at a near-maximal effort with rest periods or light activity in between. High intensity interval training involves repeatedly exercising at a high intensity for 30 seconds to several minutes, separated by 1-5 minutes of recovery. This type of exercise has sparked the interest of many active people due to its decreased time commitment and the benefits it elicits. The results of this study show that high intensity interval training induces a higher enjoyment rate ...

Mitochondrial Aspects Of Neuronal Pathology In Triple-Transgenic Alzheimer’S Disease Mice, John Zachary Cavendish

Graduate Theses, Dissertations, and Problem Reports

Alzheimer’s disease (AD) is a fatal, progressive neurodegenerative disease afflicting millions of people in the United States alone and is the only one of the top leading causes of morbidity and mortality with no effective disease-modifying therapies. It is the most common form of dementia, affecting one in three people over the age of 85. While the hallmarks of the disease include accumulation of beta-amyloid-based extracellular plaques and hyperphosphorylated tau-based intracellular neurofibrillary tangles, treatment strategies centered on removing or mitigating these components of AD have all failed in humans. Mitochondrial dysfunction has been increasingly recognized as an early and ...

A Christian Guide To Body Stewardship, Diet And Exercise, David D. Peterson, Jeremy M. Kimble, Trent A. Rogers, Don Cameron Davis

Cedrus Press Publications

No abstract provided.

Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

The ability to recycle phosphorus (P) from wastewaters could provide a sustainable, continuous source of P that might also help protect surface water quality from P enrichment. The mineral struvite (MgNH4PO4·6H2O) is an understudied material that can be created from Pcontaining wastewater and has been shown to have agricultural fertilizer value. The objective of this study was to evaluate the effects of electrochemically precipitated struvite (ECST), chemically precipitated struvite (Crystal Green; CG), diammonium phosphate (DAP), monoammonium phosphate (MAP), rock phosphate (RP), and triple super phosphate (TSP) on corn (Zea mays) and soybean (Glycine max) response in a 79-day greenhouse ...

Block Periodization Programming: Efficacy In Subjects Of Differing Strength Levels, Paul Moquin

Electronic Theses and Dissertations

Physiological muscle adaptations due to resistance training are still not fully known. The rate and area of hypertrophy could drastically help or hinder athletic performance. The purpose of this study was to observe the changes in lean body mass (and related factors), relative allometrically scaled strength and absolute strength through an 11-week block periodized resistance training program. The subjects (n = 15) realized an increase in total body water (pre = 49.77Kg; post = 51.70Kg), lean body mass (pre = 67.98Kg; post = 70.63Kg), adjusted lean body mass (pre = 20.35Kg; post = 21.03Kg) and cross sectional area (pre = 32.73 ...

Deep Neural Network For Complex Open-Water Wetland Mapping Using High-Resolution Worldview-3 And Airborne Lidar Data, Vitor S. Martins, Amy L. Kaleita, Brian K. Gelder, Gustavo W. Nagel, Daniel A. Maciel

Agricultural and Biosystems Engineering Publications

Wetland inventory maps are essential information for the conservation and management of natural wetland areas. The classification framework is crucial for successful mapping of complex wetlands, including the model selection, input variables and training procedures. In this context, deep neural network (DNN) is a powerful technique for remote sensing image classification, but this model application for wetland mapping has not been discussed in the previous literature, especially using commercial WorldView-3 data. This study developed a new framework for wetland mapping using DNN algorithm and WorldView-3 image in the Millrace Flats Wildlife Management Area, Iowa, USA. The study area has several ...

Cortical Iron Disrupts Functional Connectivity Networks Supporting Working Memory Performance In Older Adults, Valentinos Zachariou, Christopher E. Bauer, Elayna R. Seago, Flavius D. Raslau, David K. Powell, Brian T. Gold

Neuroscience Faculty Publications

Excessive brain iron negatively affects working memory and related processes but the impact of cortical iron on task-relevant, cortical brain networks is unknown. We hypothesized that high cortical iron concentration may disrupt functional circuitry within cortical networks supporting working memory performance. Fifty-five healthy older adults completed an N-Back working memory paradigm while functional magnetic resonance imaging (fMRI) was performed. Participants also underwent quantitative susceptibility mapping (QSM) imaging for assessment of non-heme brain iron concentration. Additionally, pseudo continuous arterial spin labeling scans were obtained to control for potential contributions of cerebral blood volume and structural brain images were used to control ...

High-Purity Recycling Of Hematite And Zn/Cu Mixture From Waste Smelting Slag, Yang Huo, Xiang Song, Suiyi Zhu, Yu Chen, Xue Lin, Yaqiong Wu, Zhan Qu, Ting Su, Xinfeng Xie

Michigan Tech Publications

In this study, Zn/Cu-bearing smelting slag was recycled via an integrated acid dissolution and hematite precipitation method. The slag was dissolved in nitric acid to generate an acid solution containing 23.5 g/L Fe, 4.45 g/L Zn and 2.81 g/L Cu, which was subjected to hydrothermal treatment with the addition of levulinic acid (LA). More than 99.95% of the initial Fe content was removed as hematite particles with diameters of approximately 200 nm, and the residual Fe concentration in the acid was 0.43 mg/L. The generated hematite contained 97.3% Fe2O3 ...

Environmental Factors Influencing Primary Productivity Of The Forest-Forming Kelp Laminaria Hyperborea In The Northeast Atlantic, Dan A. Smale, Albert Pessarrodona, Nathan King, Michael T. Burrows, Anna Yunnie, Thomas Vance, Pippa Moore

ECU Publications Post 2013

© 2020, The Author(s). Rates and drivers of primary productivity are well understood for many terrestrial ecosystems, but remain poorly resolved for many marine ecosystems, particularly those within in coastal benthic environments. We quantified net primary productivity (NPP) using two methods as well as carbon standing stock within kelp forests (Laminaria hyperborea) at multiple subtidal habitats in the United Kingdom (UK). Study sites spanned 9° in latitude and encompassed a gradient in average temperature of ~ 2.5 °C. In addition to temperature, we measured other factors (e.g. light intensity, water motion, nutrients, sea urchin density) that may influence productivity ...

Effect Of Biocrust Development On Establishment Of Native Plants In A Salt Desert System, Merran Owen

All Graduate Theses and Dissertations

Salt desert shrublands are semiarid, shrub-dominated ecosystems that inhabit salt- affected soils. In Great Basin salt deserts, exotic annual plants are invading and displacing native plants. Low plant productivity and slow population growth of native plants in these ecosystems makes them vulnerable to invasion and limits their ability to compete with invasive plants and return to a natural state. Active revegetation efforts, such as planting and direct seeding of native plants, are often unsuccessful for the same reasons. Biological soil crusts (communities of cyanobacteria, lichen, moss, microfungi and other microorganisms that live on the surface layer of the soil) are ...

Examination And Empirical Forecast Of Wheat Yield In Northwest India Based On Climate And Socio-Economic Factors, Avik Mukherjee

All Graduate Theses and Dissertations

This study summarizes the findings of research organized in two parts. The first part includes the impact of climate and socio-economic factors that affected wheat yield in northwest India during the 2000s. The second part focused on the forecast of average wheat yield for the two highest wheat producing states Punjab and Haryana.

Initial study focused on the impact of climate factors on wheat yield in northwest India. It has been found that above normal temperature coupled with water shortage i.e. irregular irrigation and low soil moisture contributed to the prolonged yield reduction during 2002-2010.

Next, we reviewed the ...

Water Use In Jujube (Ziziphus Jujuba) With Applications In Irrigation Timing And Quantity, Preston S. Colver

All Graduate Theses and Dissertations

Jujube (Ziziphus jujuba) is a major fruit crop in China where it has been a favored cash crop and successfully used to address erosion problems in the Loess Plateau region of western China. Further use of jujube in forestry projects and improved agricultural efficiency are very promising. This study sought to repeat a water-use study in two climates: a hot, semi-arid climate in Yangling, Shaanxi, China and a dry-summer, continental climate in Logan, Utah, USA. The study took physiological measurements on the trees with the aim of characterizing the way that jujube uses water. This would help to create an ...

Selection And Propagation Of Pinyon Pine, Kylie M. Lawson

All Graduate Theses and Dissertations

Single-leaf pinyon pines are drought tolerant trees native to the Great Basin. This species is a source of wild-collected, edible pine nuts that are in great demand. With no previous research apparent, this thesis aimed to identify wild trees with high cone production as sources for evaluating grafting onto immature and mature trees. Wild sources of scions were identified from four wild stands and six trees per stand. Counting and analyzing the number of scars left by mature cones along the leader branch provided an estimate for each tree’s productivity and identified trees with greater productivity within a stand ...

Effects Of Wi-Fi-Enabled Smart Irrigation Controllers On Water Use And Plant Health Of Residential Landscapes In The Intermountain West, Shane R. Evans

All Graduate Theses and Dissertations

Residential and commercial landscapes provide home and business owners with several benefits. These benefits range from improved air quality and flood control to the reduction of noise and breakdown of organic chemicals. However, these landscapes are routinely overwatered which can lead to plant disease, nutrient pollution, and large amounts of water being wasted. Utah State University, in conjunction with the Center for Water Efficient Landscaping (CWEL), the Utah Division of Natural Resources and Weber Basin Water Conservancy District, conducted an experiment to determine if Wi-Fi-enabled smart irrigation controllers conserve water as compared to average residential irrigation amounts and manually programmed ...

Novel Polymorphisms Of Zrsr2 And Gpm6b Gene Homologs And Their Use In Sex Identification Of Bovine And Porcine Species, Evan K. Peterson

All Graduate Theses and Dissertations

Accurate and cost-effective PCR based sex identification is important in animal production because it gives producers the ability to determine the sex of embryos prior to transfer, saving time and money. The most efficient PCR sex identification assays work by using a single primer pair to amplify a specific target region located on the Y-chromosome and a second, separate target region on the X-chromosome.

This thesis reports the design of two novel assays. The first assay was designed to target the Zinc finger CCCH-type, RNA binding motif and serine/arginine rich 2 (ZRSR2) gene found on the X-chromosome and its ...

Demographics, Accuracy, And Impact Of Feed Laboratories In The United States, Jerald H. Severe

All Graduate Theses and Dissertations

Feed analysis is very important to modern society. In the United States feed analysis is used to optimize production of food animals. Feed analysis is also used as a tool to place value on crops. As important as feed analysis is to society, little research has been done that describes which feed laboratories are the most popular and why people use them. It has been thought by some patrons that different results from the same feed sample are obtained by different laboratories. Is this true? If so, what is the effect on those that use feed laboratories to produce animals ...

Utilizing Earth's Microbiology To Develop The Framework For A Manufactured Martian Nitrogen Cycle, Kyle Valgardson

All Graduate Theses and Dissertations

History has shown us that space travel is a complicated activity not to be taken lightly. Extended missions such as those that would accompany a manned mission to Mars are guaranteed to have increased complexity and require creative solutions to problems we likely take for granted. One such issue is how to supply the necessary amount of nitrogen to the astronauts to keep them alive. Nitrogen is an essential component to life on Earth as most biological molecules, such as protein and DNA, contain a significant amount of it. Most organisms have to get it from what they eat, but ...

Safety Of Vitamin D2 Mushroom Powder As A Novel Food Pursuant To Regulation (Eu) 2015/2283, John Kearney, Dominique Turck, Jacqueline Castenmiller, Stefaan De Henauw

Articles

Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver a scientific opinion on vitamin D2 mushroom powder as a novel food (NF) pursuant to Regulation (EU) 2015/2283. The NF is an ingredient produced from Agaricus bisporus mushrooms that have been exposed to ultraviolet (UV) light to induce the conversion of provitamin D2 (ergosterol) to vitamin D2 (ergocalciferol). The NF contains concentrations of vitamin D provided by vitamin D2 in the ranges of 1,000–1,300 lg/g. The information provided on the manufacturing process, composition ...

Male Food Pantry Users Have Low Fruit, Vegetable, And Pulse Intakes Despite Interest In Food Nutrition Content, Donna M. Winham, Elizabeth D. Davitt

Food Science and Human Nutrition Presentations, Posters and Proceedings

Background: Low-income men’s use of food pantries, and dietary intakes including pulses is understudies. Food pantries can help, but resource restriction limits ability to prepare meals. Convenience foods may not be optimal for nutrition. Pulses (beans, peas, lentils, and chickpeas) count as a vegetable and provide fiber, iron, folate, and other shortfall micronutrients. Increased pulse consumption could improve diet quality. Purpose: The study evaluated low-income men’s use dietary intakes including pulses. Methods: Men aged 25-64 years who utilized food pantry services were eligible. Men completed survey questions on demographics, nutrition assistance programs use, fruit/vegetable/fiber dietary intakes ...

Effects Of Seawater Exchange On Water Chemistry Among Coastal Lakes With Intermittent Connections To The Sea, A. Challen Hyman, Dana Bigham Stephens

VIMS Articles

Intermittently closed and open lakes and lagoons (ICOLLs) are a dynamic class of coastal waterbodies with the unique feature of intermittently connecting to the sea. Understanding the functioning and potential threats of these globally rare systems is important to their preservation and protection. Coastal dune lakes of northwest Florida are one example of an understudied group of ICOLLs which connect with the Gulf of Mexico for brief periods of time. Using a 17-year, monthly water chemistry dataset, we analyzed long-term patterns in water chemistry among 16 coastal dune lakes. Using salinity as a proxy for frequency of seawater inflows, principal ...

Incorporating Worksheets To Enhance Active Learning In A Laboratory Course, Zakiya S. Kelley

STEM Instructional Graduate Teaching Assistant Posters

Study Goals:

To create worksheets that would aid the students in properly completing the required experiments and challenge them to do more than just follow the instructions. Each week there were often multiple experiments to be completed and pre-made samples to be observed within the class period. By providing the worksheet, I ensured the students completed all tasks and comprehended the covered material before class ended.

Objectives:

• To improve student participation and information retention when completing laboratory experiments in the classroom
• To emphasize key points of the topic being explored

Analiza E Kolesterolit Me Metodtë E Kolesterolit Me Metodë Enzimatike Në Vezë Komerciale, Ekstensive Dhe Organike, Fjolla Vllasaliu

Theses and Dissertations

Përqendrimi i kolesterolit në tre lloje të vezëve është analizuar përmes metodës enzimatike. Llojet e vezëve të analizuara kanë qenë: vezë komerciale, vezë ekstenzive dhe vezë organike. Janë analizuar gjithsej tridhjetë e pesë mostra. Marrja e mostrave ka qenë e rastësishme dhe analiza e kolesterolit është bërë me anë të spektrofotometrit GENESYS 10S UV-Vis. Analizat janë kryer në laboratorët hulumtues të Universitetit për Biznes dhe Teknologji (UBT) - Kosovë. Mesatarja e rezultateve të marra tregon për një përqendrim pak më të ulët të kolesterolit në llojin e vezëve ekstensive në krahasim me llojet e tjera të analizuara.

Teknologjia E Përpunimit Të Mishit Dhe Sallameve, Vegim Dedinca

Theses and Dissertations

Teknologjia e përpunimit të mishit në kuadër të saj edhe të sallamave ka patur një zhvillim të hovshëm, sidomos në dekadën e fundit në Kosovë dhe që ka rezultuar me ngritjen e një numri jo të vogël të fabrikave apo kompanive të perpunimit të mishit, ndër të cilat është edhe kompania SHPK “Sole”, të cilat zhvillojnë ativitetin e tyre në objekte të veçanta, me paisje dhe aparatura të veçanta, procedura të veçanta dhe duke respektuar Kodeksin alimentar ndërkombetar dhe standardet ligjore vendore të cilat i rregullojnë këto çeshtje. Qellimi i këtij hulumtimit është që të verifikohet zbatueshmeria e procedurave të ...

Smokejumper Magazine, October 2020, National Smokejumper Association

Smokejumper and Static Line Magazines

This issue of the National Smokejumper Association (NSA) Smokejumper Magazine contains the following articles: Message from the President; Part II: Canopies Over the Kandik; Happy 50th, Earth Day!; Sounding Off from the Editor; Letters to the Editor; How I Value My Interagency Working Opportunities with Federal Agencies; On the Road to a National Wildfire Agency: Part III; What Happened?; Then and Now; The Jump List, Men of the '40s; Smokejumper Keep the Flame Legacy Jump List; Recording Smokejumper History; Paradise with a Wind Chill-Part II; A UFO Story; Margarita Phillips Memorial Project by the TRAMPS; A Day in the Lake ...

A Tree Frog (Boana Pugnax) Dataset Of Skin Transcriptome For The Identification Of Biomolecules With Potential Antimicrobial Activities, Yamil Liscano Martinez, Claudia Marcela Arenas Gómez, Jeramiah J. Smith, Jean Paul Delgado

Biology Faculty Publications

Increases in the prevalence of multiply resistant microbes have necessitated the search for new molecules with antimicrobial properties. One noteworthy avenue in this search is inspired by the presence of native antimicrobial peptides in the skin of amphibians. Having the second highest diversity of frogs worldwide, Colombian anurans represent an extensive natural reservoir that could be tapped in this search. Among this diversity, species such as Boana pugnax (the Chirique-Flusse Treefrog) are particularly notable, in that they thrive in a diversity of marginal habitats, utilize both aquatic and arboreal habitats, and are members of one of few genera that are ...

Lack Of Consensus On An Aging Biology Paradigm? A Global Survey Reveals An Agreement To Disagree, And The Need For An Interdisciplinary Framework, Alan A. Cohen, Anne M. Bronikowski, Luigi Ferrucci, Et Al.

Ecology, Evolution and Organismal Biology Publications

At a recent symposium on aging biology, a debate was held as to whether or not we know what biological aging is. Most of the participants were struck not only by the lack of consensus on this core question, but also on many basic tenets of the field. Accordingly, we undertook a systematic survey of our 71 participants on key questions that were raised during the debate and symposium, eliciting 37 responses. The results confirmed the impression from the symposium: there is marked disagreement on the most fundamental questions in the field, and little consensus on anything other than the ...