The purpose of this study was to identify antimutagens in yogurt active against the
experimental colon carcinogen, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). Our
initial experiments showed that acetone extracts of yogurt, or milk fermented by various
lactic acid bacteria were antimutagenic against MNNG and 3,2'-dimethyl-4-aminobiphenyl
(DMAB) in the Ames test (Salmonella typhimurium TA...
The effects of manganese nutrition on growth, mineral composition,
carbohydrate and nitrogen metabolism, IAA oxidase and phenols
of 'Northwest' strawberry plants are reported. Growth and mineral
composition response were investigated in sand culture and Hoagland's
solution 2 modified to contain 0.0, 0.5, 2.5, 12.5, 25.0, 62.5 and
125.0 ppm substrate...
The stability of steady-state solutions of the equations governing two-dimensional,
homogeneous, incompressible fluid flow are analyzed in the context
of shear-flow in a channel. Both the linear and nonlinear theories are
reviewed and compared. In proving nonlinear stability of an equilibrium,
emphasis is placed on using the stability algorithm developed...
Using techniques that permit the direct observation of
fetuses in vivo, prenatal behavioral development was
compared among four species in the rodent family Muridae:
the Norway rat (Rattus norvegicus), Mongolian gerbil
(Meriones unguiculatus), cotton rat (Sigmodon hispidus), and
spiny mouse (Acomys cahirinus). Rattus and Meriones bear
altricial offspring, as do...
Nisin, an antimicrobial peptide used in food preservation was
evaluated for thermal stability. Nisin retained antimicrobial
activity after having been heated at 121°C for seven hours.
Anhydrous nisin and concentrated nisin solutions (5-10 mg/ml) were
still active after having been heated up to 190°C or 230°C. When
exposed to high...
Given the many significant roles that bacteria play in modern food manufacturing, it is crucial that we have a fundamental understanding of how bacterial communities assemble and behave in the food manufacturing environment. The focus of this dissertation was to investigate both the spatial and temporal distributions of microbial communities...
Nanostructured ceramics offer significant improvements in properties over the
corresponding materials with grain sizes on the order of tens to hundreds of microns.
Silicon carbide (SiC) is an important structural ceramic whose properties can
potentially be enhanced due to nanoscale microstructures. It has been suggested that
SiC samples with grain...
Background—The current study described patterns of yoga practice and examined differences
in physical activity over time between individuals with or at risk for type 2 diabetes who
completed an 8-week yoga intervention compared with controls.
Methods—A longitudinal comparative design measured the effect of a yoga intervention on yoga
practice and...
Chitosan has been proposed as a "natural" coagulating agent to solve wastewater problems. The main hindrance in this commercial chitosan application has been its low cost effectiveness. The hypothesis in our research is that chitosan complexes with natural polyanions is more effective than chitosan alone, particularly in recovering low concentration...