Complex organic transformations, such as the addition of pyrrole to ketene using planar chiral organocatalyst (*PPY), the four-component anhydride- Manniach reactions, and the site-selective desymmetrization of meso-1,2-diol, are remarkable synthetic reactions that provide high yield and high selectivity. However, the exact mechanism and origins of stereocontrol for theses synthetic organic...
Four-fold partially purified glucose-6-phosphate dehydrogenase
(G-6-PDH) from the obligately psychrophilic marine bacterium
Vibrio marinus was effected by thermally induced leakage of the
enzyme, ammonium sulfate fractionation and column chromatography
on Sephadex G-200 gel.
The effects of temperature, pressure, salinity, and pH were
determined for the various degrees of enzyme purity....
The heat inactivation of the psychrophilic marine bacterium,
Ant-300, was investigated in terms of permeability control, glucose
uptake, and respiration. Extensive leakage of 14C-cellular material
occurred at 13 C, the maximum growth temperature of the organism.
Protein and RNA were released from the cells in significant
quantities. Inhibition of glucose...
The crop rotation decision is important to farmers because of its
impact on profitability, financing and risk exposure. This thesis
addresses the problem of farm level crop rotation selection under perfect
and imperfect knowledge of prices, yields and costs. The problem
is addressed by first estimating production functions for irrigated...
Regionalized variable analysis has been used to study
a number of meteorological and hydrological variables
including precipitation (Delhomme and Delfinier, 1973),
streamfiow (Villeneuve et al., 1979) and hydraulics of
groundwater aquifers (Gambolati and Volpi, 1979). In the
research work reported in this thesis, an attempt was
made to characterize the...
A taxonomic study of the genus Ophionectria Saccardo is presented.
The genus is described and the only remaining species, the type species,
Ophionectria trichospora, is described and figured. Ophionectria
trichospora is compared with Nectria haematococca to define relationships
between the two genera.
All other species formerly placed in Ophionectria are...
Wine grape pomace (WGP), the byproduct from winemaking, is a good source of polyphenols and dietary fibers, and may be utilized as antioxidant dietary fibers (ADF) for food applications. The objectives of this thesis research were to first determine the phenolic compounds, antioxidant and antimicrobial activities in red WGP under...
MicroSoar, an undulating profiler capable of measuring turbulence parameters such as Thorpe scales and thermal dissipation rate while being towed at speeds of up to 4 m s⁻¹, offers the possibility of obtaining a close-to-synoptic image of mixing over large spatial areas. In this paper, the method of calculating Thorpe...
Alaska pollock (Gadus chalcogrammus) is a schooling whitefish native to the Bering Sea that is prized for its fillets, surimi, roe, and milt. Fillets are frequently used for popular products such as fish and chips. If collected, roe and milt are commonly exported to South Korea and Japan. However, no...