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

Life Sciences Commons

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

144915 Full-Text Articles 176704 Authors 18103694 Downloads 353 Institutions

All Articles in Life Sciences

Faceted Search

144915 full-text articles. Page 1 of 3261.

The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean 2018 University of Dayton

The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean

Marian Library/IMRI Faculty Publications

S. Fred Prince, a botanical illustrator and amateur scientist, is a largely unknown artist whose work on the American landscape demonstrates his eligibility to be considered in the lineage of self-taught illustrator-naturalists such as Mark Catesby and Genevieve Jones. In this article, we present a survey of extant Prince materials identified at time of writing, describing their contents and physical characteristics. Beyond this survey and description, we also provide a biographical sketch and timeline of Prince's life.


Potential For Climate Induced Methane Hydrate Dissociation, Graham MacWilliams 2018 Pomona College

Potential For Climate Induced Methane Hydrate Dissociation, Graham Macwilliams

Pomona Senior Theses

Methane hydrates are frozen deposits of methane and water found in high pressure or low temperature sediments. When these deposits destabilize, large quantities of methane can be emitted into the atmosphere. This is significant to climate change because methane has 25 times more greenhouse gas potential than Carbon Dioxide. Worldwide, it is estimated there are between 2500 and 10000 gigatons of methane stored in hydrate deposits. This represents more carbon than all fossil fuels on Earth. It is estimated that between 200 and 2000 gigatons of methane are stored in hydrates in Arctic waters acutely vulnerable to greenhouse warming. Over ...


Superresolution Imaging Identifies That Conventional Trafficking Pathways Are Not Essential For Endoplasmic Reticulum To Outer Mitochondrial Membrane Protein Transport., Kyle Salka, Shivaprasad Bhuvanendran, Kassandra Wilson, Petros Bozidis, Mansi Mehta, Kristin Rainey, Hiromi Sesaki, George H Patterson, Jyoti K. Jaiswal, Anamaris M. Colberg-Poley 2017 George Washington University

Superresolution Imaging Identifies That Conventional Trafficking Pathways Are Not Essential For Endoplasmic Reticulum To Outer Mitochondrial Membrane Protein Transport., Kyle Salka, Shivaprasad Bhuvanendran, Kassandra Wilson, Petros Bozidis, Mansi Mehta, Kristin Rainey, Hiromi Sesaki, George H Patterson, Jyoti K. Jaiswal, Anamaris M. Colberg-Poley

Integrative Systems Biology Faculty Publications

Most nuclear-encoded mitochondrial proteins traffic from the cytosol to mitochondria. Some of these proteins localize at mitochondria-associated membranes (MAM), where mitochondria are closely apposed with the endoplasmic reticulum (ER). We have previously shown that the human cytomegalovirus signal-anchored protein known as viral mitochondria-localized inhibitor of apoptosis (vMIA) traffics from the ER to mitochondria and clusters at the outer mitochondrial membrane (OMM). Here, we have examined the host pathways by which vMIA traffics from the ER to mitochondria and clusters at the OMM. By disruption of phosphofurin acidic cluster sorting protein 2 (PACS-2), mitofusins (Mfn1/2), and dynamin related protein 1 ...


Tea Induction Of Cyp6a8 Promoter In Drosophila Melanogaster, Fiona Retzer 2017 University of Tennessee, Knoxville

Tea Induction Of Cyp6a8 Promoter In Drosophila Melanogaster, Fiona Retzer

University of Tennessee Honors Thesis Projects

No abstract provided.


The Effects Of Continuous Insulin Pump Therapy On Glycemic Control In Pregnant Type 1 Diabetics, Kimberly Kelsey 2017 Dominican University of California

The Effects Of Continuous Insulin Pump Therapy On Glycemic Control In Pregnant Type 1 Diabetics, Kimberly Kelsey

Senior Theses and Capstone Projects

Type 1 Diabetics have various ways of managing their diabetes that have been studied for their effectiveness. Pregnancy in the Type 1 Diabetic has been understudied. It is known that Diabetics in general have poorer pregnancy outcomes because of poor glycemic control. This coupled with the fact that the body needs 3-4 times more insulin as pregnancy comes to an end makes managing blood glucose levels challenging for diabetics (Lowdermilk, 2016, p. 689). For the Type 1 Diabetic, there are two main ways to control diabetes: multiple daily injections using at least two type of insulin and continuous subcutaneous insulin ...


Characterisation Of Cold Plasma Treated Beef And Dairy Lipids Using Spectroscopic And Chromatographic Methods, Chaitanya Sarangapani, David Dorran, Julie Dunne, Paula Bourke, Patrick Cullen 2017 Dublin Institute of Technology

Characterisation Of Cold Plasma Treated Beef And Dairy Lipids Using Spectroscopic And Chromatographic Methods, Chaitanya Sarangapani, David Dorran, Julie Dunne, Paula Bourke, Patrick Cullen

Articles

The efficacy of cold plasma for inactivation of food-borne pathogens in foods is established. However, insights on cold plasma-food interactions in terms of quality effects, particularly for oils and fats, are sparse. This study evaluated plasma-induced lipid oxidation of model matrices, namely dairy and meat fats. Product characterisation was performed using FTIR, 1H NMR and chromatographic techniques. The oxidation of lipids by cold plasma followed the Criegee mechanism and typical oxidation products identified included ozonides, aldehydes (hexanal, pentenal, nonanal and nonenal) and carboxylic acids (9-oxononanoic acid, octanoic acid, nonanoic acid), along with hydroperoxides (9- and 13-hydroperoxy-octadecadienoylglycerol species). However, these ...


Outcomes Of An Integrated Approach To Speed And Strength Training With An Elite-Level Sprinter, Eric D. Magrum 2017 East Tennessee State University

Outcomes Of An Integrated Approach To Speed And Strength Training With An Elite-Level Sprinter, Eric D. Magrum

Electronic Theses and Dissertations

The purpose of this study was to observe changes in sprint velocity, ground contact time, and peak force demonstrated by a competitive sprinter following an integrated approach to speed development and strength training. As part of an ongoing monitoring procedure the participant completed 20m sprint testing through an optical measurement system and isometric-strength testing before and after each phase of training. Sprint velocity, ground contact time and peak force were analysed using Tau-U, smallest worthwhile and percent change statistics. Results indicate sprinting velocity statistically improved while changes in peak force were practically significant and ground contact time remained trivial throughout ...


Added Sugar Consumption Among College Students, Maram Murad 2017 University of the Incarnate Word

Added Sugar Consumption Among College Students, Maram Murad

Theses & Dissertations

Added sugar consumption has been increasing in all age groups in the United States and worldwide, with the greatest increase in young adults. College-age years are a critical period in the young adult's life where many habits develop, including nutrition and food choices. An understanding of college-age students’ attitudes and behaviors toward added sugar consumption might help predict added sugar consumption within this population. This was a quantitative study of traditional-aged college students' added sugar consumption through a convenience sample at a private university in San Antonio, TX. A survey was administrated to undergraduate students at different classes. Subjects ...


Bridging Post-Wildfire Communication Gaps Between Managers, Researchers, And Local Communities, Including A Biological Soil Crust Case Study, Hilary Louise Whitcomb 2017 Utah State University

Bridging Post-Wildfire Communication Gaps Between Managers, Researchers, And Local Communities, Including A Biological Soil Crust Case Study, Hilary Louise Whitcomb

All Graduate Theses and Dissertations

Following a wildfire, land management agencies act quickly to protect ecosystem services. We don't currently understand how post-wildfire managers make trade-off decisions in these tight timelines, or if these decisions reflect current science. Using Brunson’s (2014) social-ecological systems multi-scalar model, surveys assessed manager opinions about post-wildfire projects, perceptions of stakeholder opinions, and ability or willingness to consider new science results. Public surveys asked local citizens their opinions about post-wildfire projects. Manager perceptions were measured through semi-structured phone interviews (n = 8) and a structured online survey (n = 256). Public surveys were mailed to 1,000 (971 deliverable, n = 152 ...


Ecology, Evolution, And Sexual Selection In The Invasive, Globally Distributed Small Indian Mongoose (Urva Auropunctata), M. Aaron Owen 2017 The Graduate Center, City University of New York

Ecology, Evolution, And Sexual Selection In The Invasive, Globally Distributed Small Indian Mongoose (Urva Auropunctata), M. Aaron Owen

All Graduate Works by Year: Dissertations, Theses, and Capstone Projects

Introduced species provide rare opportunities to test evolutionary hypotheses in situ by creating so-called natural experiments. Natural experiments are situations in nature that resemble laboratory studies by allowing for comparisons of a “control” group (i.e., a species’ native range) with “experimental” groups (i.e., a species’ introduced range). In particular, introduced animals allow us to investigate evolutionary dynamics in complex, long-lived organisms in ways that would otherwise be impossible in a laboratory setting. One such introduced animal is the small Indian mongoose (Urva auropunctata, formerly Herpestes auropunctatus). Native to South Asia, the small Indian mongoose’s introduction to more ...


Between Speech & Song: Clarifying The Sprechstimme Of Schoenberg's Pierrot Lunaire, Sara M. Paar 2017 The Graduate Center, City University of New York

Between Speech & Song: Clarifying The Sprechstimme Of Schoenberg's Pierrot Lunaire, Sara M. Paar

All Graduate Works by Year: Dissertations, Theses, and Capstone Projects

Since its creation, the technique of Sprechstimme has fascinated the audiences, performers, and composers of twentieth century music. What is it? How is it done? How should it be notated? At the fore of investigations into these questions has been Arnold Schoenberg’s Pierrot lunaire, the work in which Schoenberg debuted this new technique. Much has been written in regard to Schoenberg’s creation and use of Sprechstimme, as well as his own exploration of the speech/song continuum. Composers, conductors, and performers have all tried to make sense of the notation, instructions, and performances Schoenberg left behind. Despite this ...


Body Size Regulation Via Bmp Signaling In Caenorhabditis Elegans, Uday Madaan 2017 The Graduate Center, City University of New York

Body Size Regulation Via Bmp Signaling In Caenorhabditis Elegans, Uday Madaan

All Graduate Works by Year: Dissertations, Theses, and Capstone Projects

The body size of an organism can be a crucial determinant of access to nutrition, reproductive success and overall survival in the wild. However, how body size of an individual is determined is incompletely understood. Body size is a complex trait determined by multiple pathways and genes, making it difficult to understand the role of individual genes and pathways in determining overall size. In Caenorhabditis elegans, a homolog of Bone Morphogenetic Proteins (BMP) is a major regulator of body size; functional loss of DBL-1 leads to a small body size. Due to a drastic change in body size in dbl-1 ...


The P53 Independent Functions Of Estrogen-Activated Mdm2 In Cell Signaling And Mammary Architecture, Nandini Kundu 2017 The Graduate Center, City University of New York

The P53 Independent Functions Of Estrogen-Activated Mdm2 In Cell Signaling And Mammary Architecture, Nandini Kundu

All Graduate Works by Year: Dissertations, Theses, and Capstone Projects

Estrogen receptor positive (ER+) breast cancers often have MDM2 overexpression indicating a critical role for MDM2 in breast cancer tumorigenesis. The cancer genome atlas (TCGA) found that increased MDM2 expression is one of the four pathways that correlate with all breast cancer subtypes. MDM2 is mainly known as the negative regulator of wild type p53. However, aggressive breast cancers often have MDM2 overexpression and mutant p53 (mtp53). We previously reported that MDM2 provides an estrogen-mediated proliferative advantage to MCF-7 breast cancer cells (ER+, MDM2 overexpression, wild type p53), independent of wild type p53 in both 2D and 3D culture conditions ...


The Role Of Dietary Highly Unsaturated N-3 Fatty Acids In Northern Quahogs, Mercenaria Mercenaria, Through Decreasing Temperature, Sixto E. Portilla 2017 The Graduate Center, City University of New York

The Role Of Dietary Highly Unsaturated N-3 Fatty Acids In Northern Quahogs, Mercenaria Mercenaria, Through Decreasing Temperature, Sixto E. Portilla

All Graduate Works by Year: Dissertations, Theses, and Capstone Projects

The series of investigations described in this thesis were designed to assess the effect of diet on mortality through decreasing temperature in two genetic varieties of M. mercenaria important to the natural environment and the aquaculture industry: “wild” from natural stocks and “notata” selected for fast growth. Data from these novel investigations demonstrate a temperature specific sensitivity to each dietary component designating 20:5n-3 as homeoviscously favorable in the upper thermal range above 12°C, and 22:6n-3 as favorable in the lower. Statistical analyses of variance demonstrate distinct cumulative mortalities among the 5 dietary treatments (P < 0.05) for each genetic variety at each thermal range, upper (>12°C) and ...


Bill Owens: A Us Craft Beer Pioneer, 1982-2001, Patrick Walls 2017 University of San Diego

Bill Owens: A Us Craft Beer Pioneer, 1982-2001, Patrick Walls

Theses

Bill Owens is a pioneer in the United States craft brewing industry through his efforts as an advocate, writer, publisher, brewer, and entrepreneur who created a lasting legacy by influencing generations of brewers and beer fans. Owens wrote the first book on homebrewing equipment (How to Build a Small Brewery: Draft Beer in Ten Days in 1982). He opened the third brewpub in the country (Buffalo Bill's Brewery in Hayward, California in 1983) where, in 1985, he introduced the first commercial pumpkin beer among other beer style firsts. Owens published numerous brewery-focused magazines that featured many illustrious beer writers ...


The Metabolism Of Some Nitrogen-Fixing Clostridia, W. Hillman Willis 2017 Iowa State College

The Metabolism Of Some Nitrogen-Fixing Clostridia, W. Hillman Willis

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Studies have been conducted upon certain nitrogen-fixing clostridia isolated from Tama silt loam and Grundy silt loam, two acid soils widely distributed in Iowa. Tests have been made of their reaction requirements, capacity to fix gaseous nitrogen and production of carbon dioxide under varying controlled conditions in the laboratory. The results appear to warrant the following conclusions.

1. Nitrogen-fixing anaerobes were present in rather large numbers in the acid soils studied.

2. Varying applications of lime had little or no effect upon the numbers of anaerobic nitrogen-fixers or upon their ability to fix nitrogen in soil-solution cultures in the presence ...


Factors Influencing A Malformation Of The Leg Bones Of Growing Chickens, Thomas Theodore Milby 2017 Iowa State College

Factors Influencing A Malformation Of The Leg Bones Of Growing Chickens, Thomas Theodore Milby

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

When varying amounts of phosphorus from inorganic sources were added to a basal ration of ground yellow corn, wheat middlings and dry skimmilk, in which the amount of calcium in the various rations was held practically constant, the incidence of slipped tendon increased as the phosphorus increased. Though the trend was very definite, the relation between the amount of phosphorus in the ration and the percentage of slipped tendon was not exactly linear, indicating that factors other than the amount of phosphorus in the ration may have been operating to influence the incidence of slipped tendon. Two groups of chicks ...


Competitive Position Of Lard In The Market Of Animal And Vegetable Fats And Oils, Rainer Schickele, Theodore W. Schultz 2017 Iowa State College

Competitive Position Of Lard In The Market Of Animal And Vegetable Fats And Oils, Rainer Schickele, Theodore W. Schultz

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Lard ranks second among the domestically consumed fats and oils, exceeded only by butter. Lard constitutes about one-sixth of the total value of hog products. It is one of our most important export commodities; between 85 and 90 percent of the lard entering international commerce is of American origin. Yet in spite of its economic importance, especially to the hog producers of the Corn Belt, practically no work has been done to investigate the production and market characteristics of lard and its competitive position relative to other fats and oils. The literature dealing with the market situation of butter, margarine ...


Growth Responses Of The Gladiolus As Influenced By Storage Temperatures, David C. Fairburn 2017 Iowa State College

Growth Responses Of The Gladiolus As Influenced By Storage Temperatures, David C. Fairburn

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The gladiolus, one of the most popular ornamental bulbous plants, is a tender perennial and will not survive if exposed to severe winter weather. The corms must be removed from the garden in the fall and stored until planting time in the spring. The conditions to which the corms are subjected during storage determine to a large extent the growth responses the following season. Consequently, this phase of gladiolus culture is of paramount importance. The present knowledge regarding proper storage temperatures is far from comprehensive. Further study is necessary, and the following investigation concerned with the physiology, morphology and growth ...


The Numbers Of Lipolytic Bacteria In Various Dairy Products, As Determined With Nile-Blue Sulfate, B. W. Hammer, M. A. Collins 2017 Iowa State College

The Numbers Of Lipolytic Bacteria In Various Dairy Products, As Determined With Nile-Blue Sulfate, B. W. Hammer, M. A. Collins

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The lipolytic bacteria in milk, cream and butter are of interest from the standpoint of the development of defects in these products. Presumably, rancidity is the most important of such defects, although since many of the lipolytic bacteria also attack constituents of milk other than fat, additional defects may be involved. Comparatively little attention has been given to the numbers of lipolytic organisms in various dairy products, because methods of determining these organisms have not come into such common use as have the methods of determining proteolytic and acid-forming organisms.


Digital Commons powered by bepress