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New development of beta-chitosan from jumbo squid pens (Dosidicus gigas) and its structural, physicochemical, and biological properties, New development of β-chitosan from jumbo squid pens (Dosidicus gigas) and its structural, physicochemical, and biological properties

Creator:: Jung, Jooyeoun
Abstract:: β-chitin/chitosan extracted from newly utilized jumbo squid (Dosidicus gigas) pens were investigated in respect to their physicochemical properties, polymeric structures, deacetylation and depolymerization characteristics, and antioxidant and antibacterial activities. These functional properties were further compared with α-chitin/chitosan prepared from shrimp shells. Due to the low mineral content (< 1%) and...
Resource Type:: Dissertation
Full Text:: peroxide. Carbohydrate Polymers 2012, 87 (1), 935-938. 16. Lamarque, G.; Viton, C.; Domard, A

Stream Chemistry in the Oregon Coast Range: Spatial and Temporal Variation

Creator:: Carini, Lya
Abstract:: Hydrological and biogeochemical processes occurring throughout a watershed are typically reflected in stream water chemistry, including in coastal watersheds. While Oregon Coast Range streams have been studied in the past, there is a dearth of knowledge in terms of seasonal temporal trends and spatial variability that this study seeks to...
Resource Type:: Masters Thesis

An examination of factors that perpetuate fast fashion and consumer feelings regarding fast fashion

Creator:: Collett, Miriam
Abstract:: Fast fashion is a term used to describe trendy apparel created with a short cycle time and planned obsolescence. Consumers view such items as disposable due to poor garment quality and low price points. Although consumers are aware of the environmental impact of apparel consumption, the popularity of fast fashion...
Resource Type:: Masters Thesis
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Geographic variation in the seed mycobiome of Coastal Douglas-fir (Pseudotsuga menziesii var. menziesii)

Creator:: Bergmann, Gillian E.
Abstract:: Seeds are an essential component of plant life histories, and seed endophytes have the potential to influence germination, seedling establishment and development. That said, seed endophytes are a relatively new area of study, both in the factors that influence which taxa are present and how these microbes alter plant function....
Resource Type:: Honors College Thesis
Full Text:: o d er m a vi ri d es ce n s T ri ch o th ec iu m ro se u m Analysis of

Eddy correlation benthic O₂ exchange rates and characterizations of sediment properties from the central Oregon shelf at 30 meters

Creator:: McCann-Grosvenor, Kristina
Abstract:: Rates of benthic O₂ exchange are important measurements for determining organic matter remineralization, and can shed light on factors driving biogeochemical processes in coastal environments. Measurement of in situ O₂ consumption and production within permeable sediments, such as those found over ~43% of the Oregon-Washington shelf, has traditionally been done...
Resource Type:: Masters Thesis
Full Text:: ..................................................................................................................................................... 91 LIST OF FIGURES Figure Figure 1 Map indicating locations for the EC and IMP lander

Adaptive Streaming Methods using Dual Protocols and Reinforcement Learning

Creator:: Gatimu, Kevin
Abstract:: The ubiquity of high quality video and proliferation of mobile devices has contributed to an unprecedented rise in video consumption. HTTP, in conjunction with adaptive streaming, has become the de facto mechanism for delivering the vast majority of video as it readily caters to heterogeneous networks and devices. This dissertation...
Resource Type:: Dissertation
Full Text:: . corrupted frame (slices 2 and 4 are lost). Poor EC via frame copy results in error propagation five frames

Electronic Properties of Passive Films on Carbon Steel Rebar in Simulated Concrete Pore Solutions

Creator:: Williamson, Jon W.
Abstract:: In the highly alkaline environment of concrete, carbon steel rebar is protected against corrosion by a passive oxide/oxyhydroxide film. Understanding the characteristics of this passive film, and how it depassivates, is the key for mitigating problems associated with steel corrosion in concrete. Although a large number of electrochemical and analytical...
Resource Type:: Masters Thesis
Full Text:: and decrease in the model parameters EF, ED2, ED1, ND1, EC, ND2, σ1, σ2, and EV ……………………………...191

Development of mullite-zirconia composite feedstocks for powder injection molding

Creator:: Martin, Renee A.
Abstract:: Mullite-zirconia composites have been slated for use in a novel miniature ceramic turbine engine components developed for unmanned air vehicle (UAV) engine applications. Economically feasible production of these complex components requires the use of a near-net shape process such as powder injection molding (PIM). This thesis explores the development and...
Resource Type:: Masters Thesis
Full Text:: 0 20 40 60 80 100 120 140 160 180 Sp ec ifi c he at , J /k g K Temperature, °C

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis

Host kinases involved in DNA precursor biosynthesis during bacteriophage T4 infection

Creator:: Bernard, Mark Aguirre
Abstract:: Although the Escherichia coli host has almost all of the enzymes necessary to synthesize nucleotides needed for bacteriophage T4 DNA replication, phage genes expressed early in infection encode enzymes for de novo DNA precursor biosynthesis and salvage from degraded host DNA. Eight early enzymes and two host enzymes comprise the...
Resource Type:: Dissertation

ScholarsArchive@OSU

New development of beta-chitosan from jumbo squid pens (Dosidicus gigas) and its structural, physicochemical, and biological properties, New development of β-chitosan from jumbo squid pens (Dosidicus gigas) and its structural, physicochemical, and biological properties

Stream Chemistry in the Oregon Coast Range: Spatial and Temporal Variation

An examination of factors that perpetuate fast fashion and consumer feelings regarding fast fashion

Geographic variation in the seed mycobiome of Coastal Douglas-fir (Pseudotsuga menziesii var. menziesii)

Eddy correlation benthic O₂ exchange rates and characterizations of sediment properties from the central Oregon shelf at 30 meters

Adaptive Streaming Methods using Dual Protocols and Reinforcement Learning

Electronic Properties of Passive Films on Carbon Steel Rebar in Simulated Concrete Pore Solutions

Development of mullite-zirconia composite feedstocks for powder injection molding

Aryl acetylene substituent effects : the synthesis and application of biaryls

Host kinases involved in DNA precursor biosynthesis during bacteriophage T4 infection

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