Index Catalog // ScholarsArchive@OSU

Biogeochemical Processing of Freshwater Carbon in the Anthropocene

Creator:: Buser, Jessica Z.
Abstract:: Freshwater systems cycle carbon along a spatial and temporal biogeochemical continuum, across which ecosystem processes contribute to transformations of organic matter (OM). Various ecological constraints impact rates OM transformation and production and consumption of the energetic end of respiration, methane. Microbiological processing and complete reduction of carbon substrates to methane...
Resource Type:: Dissertation
Full Text:: Anthropocene Abstract approved: ______________________________________________________ Frederick S

Diversity and Activity of Microbial Extracellular Peptidases in Soil

Creator:: Nguyen, Trang T. H.
Abstract:: Soil nitrogen exists largely as organic matter, including plant liter, dead animal matter, and microbial necromass. About 90% of soil organic nitrogen is proteinaceous material that is too large for plants and microorganisms to assimilate directly. Protein depolymerization therefore plays a critical role in mobilizing this organic source of nitrogen,...
Resource Type:: Dissertation
Full Text:: the average numbers of each peptidase super-family (S for serine, M for metallo-, C for cysteine, T

Performance of broilers and layers fed crab meal and other substances for improving utilization of diets containing whey or cellulose

Creator:: Tachasirinugune, Sommai
Abstract:: Several experiments involving broilers and laying hens were conducted to study the effects of feeding crab meal, dried whey and cellulose. The positive responses of crab meal as a substance for improving the utilization of dried whey and cellulose were examined. Cellulose treated with concentrated H3PO4 in broiler diets and...
Resource Type:: Dissertation
Full Text:: my graduate committee members, Drs. David C. England, Harry S. Nakaue, Roger G. Petersen and

Nearshore distribution of barnacle and mussel larvae and oceanographic mechanisms of onshore transport and delivery

Creator:: Tyburczy, Joe A.
Abstract:: Recruitment of larvae from the plankton is an important determinant of community structure in marine systems. In populations of many marine species, recruitment determines the basic demographic parameters of immigration, emigration, and reproduction. Moreover, the effect of recruitment as an "ecological subsidy" can determine the strength of interactions among species...
Resource Type:: Dissertation
Full Text:: Barilotti, Alexis Howard, Cathy Preston, Randy Finke, Jose Pantoja, Mirtala Parragué-Guzmán, and Elliot

Structure and Dynamics of the Canine (Canis familiaris) Nasal Microbiome

Creator:: Knorr, Elizabeth
Abstract:: The diverse community of bacteria living within and on host organisms, known as the microbiome, has an important role in maintaining host health. Dysbiosis, known as a change in the healthy community of the microbiome, has been associated with a number of diseases across host organisms and body sites including...
Resource Type:: Dissertation
Full Text:: , Kroll S, Morhenn C, Kim S-T, Weigel D, Kemen EM. 2016. Microbial Hub Taxa Link Host and Abiotic Factors

Optics, structure and variability of the offshore Columbia River plume

Creator:: Saldías, Gonzalo
Abstract:: The Columbia River delivers the greatest amount of freshwater to the coastal ocean along the U.S. Pacific coast. This freshwater forms the Columbia River plume, a mesoscale plume with significant implications on coastal ocean physical, biological, chemical, and geological processes. The plume is transported south and offshore during the upwelling...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Gonzalo S. Sald́ıas for

Investigating the Effect of Using Mobile Touchscreen Device on Children's Tactile Skills

Creator:: Almurshed, Rana
Abstract:: To users, mobile touchscreen devices have appealing characteristics; among these characteristics is intuitiveness, which leads to mobile devices being used almost everywhere by almost everyone to accomplish almost anything. This statement, to some degree, holds for children too. Despite touchscreen devices’ intuitiveness and popularity, we don’t know much about how...
Resource Type:: Dissertation
Full Text:: using two fingers (see Figure1 (b)). Tilt, on the other hand, is a gesture done with hand(s) rather

The role of oxygen and other environmental variables on survivorship, abundance, and community structure of invertebrate meroplankton of Oregon nearshore coastal waters

Creator:: Eerkes-Medrano, Dafne I.
Abstract:: The high productivity of Eastern Boundary Upwelling Ecosystems (EBUE), some of the most productive ecosystems in the globe, is attributed to the nutrient rich waters brought up through upwelling. Climate change scenarios for coastal upwelling systems, predict an intensification of coastal upwelling winds. Associated with intensification in upwelling are biogeochemical...
Resource Type:: Dissertation
Full Text:: 1960’s (Vaquer-Sunyer and Duarte 2008). Reduction in dissolved oxygen in some coastal waters has been

Inclusion Fusion and Genetic Recombination: Bridging the Gap Between the Chlamydiae

Creator:: Garvin, Lotisha E.
Abstract:: Chlamydia is an obligate intracellular bacterial pathogen that causes a variety of disease in animals and humans worldwide. Veterinary chlamydial pathogens can lead to chronic infections and serious consequences that result in millions of dollars of losses in animals and resources in the agricultural industry in countries that rear ruminants....
Resource Type:: Dissertation

Studies of Chitin Nanofiber Production and Photoluminescent Biosilica from Diatoms with and without Germanium

Creator:: LeDuff, Paul A.
Abstract:: There is significant interest in harnessing the biosynthetic capacities of photosynthetic diatom microalgae for the production of unique bioinspired nanomaterials. Specifically, this research focuses on understanding the photoluminescent properties of diatom biosilica and β-chitin nanofiber production in diatoms. Diatoms are single-celled microalgae that possess intricately patterned biosilica shells called, frustules....
Resource Type:: Dissertation
Full Text:: Cyclotella sp. 6 References [1] N. S. Lewis and D. G. Nocera, “Powering the Planet

ScholarsArchive@OSU

Biogeochemical Processing of Freshwater Carbon in the Anthropocene

Diversity and Activity of Microbial Extracellular Peptidases in Soil

Performance of broilers and layers fed crab meal and other substances for improving utilization of diets containing whey or cellulose

Nearshore distribution of barnacle and mussel larvae and oceanographic mechanisms of onshore transport and delivery

Structure and Dynamics of the Canine (Canis familiaris) Nasal Microbiome

Optics, structure and variability of the offshore Columbia River plume

Investigating the Effect of Using Mobile Touchscreen Device on Children's Tactile Skills

The role of oxygen and other environmental variables on survivorship, abundance, and community structure of invertebrate meroplankton of Oregon nearshore coastal waters

Inclusion Fusion and Genetic Recombination: Bridging the Gap Between the Chlamydiae

Studies of Chitin Nanofiber Production and Photoluminescent Biosilica from Diatoms with and without Germanium

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