Illegal fishing is a serious problem that threatens the sustainability of fisheries around the world. Historically, fisheries managers have attempted to increase the costs of illegal fishing through imposition of stricter sanctions and improvements to monitoring and enforcement programs. Non-monetary factors also influence illegal fishing behaviors, and failing to address...
The spermiogenesis of Mytilus edulis (a marine mussel) has
been studied, employing techniques of light and electron microscopy
and cytochemical preparations. The observations trace the development
of the acrosomal complex, the nucleus, the mitochondrial
middle-piece, and the flagellum.
In early spermatids numerous membrane-bounded proacrosomal
vesicles arise from several Golgi complexes...
4-Pyridoxic acid is the major metabolite of all forms of
vitamin B₆ in mammalian species. The determination of 4-pyridoxic
acid, therefore, is important in the investigation of vitamin B₆
metabolism and for the establishment of human requirements for the
Although 4-pyridoxic acid is itself fluorescent, Huff and
Clostridium perfringens is an anaerobic, gram-positive, rod-shaped, spore-forming bacterium that leads to a broad range of diseases in humans and animals [23, 27, 50]. Among seven C. perfringens types (type A-G), type F is known to be the most common bacteria that is responsible for causing human food-borne disease outbreaks...
Oregon State University has recently conducted a complete core conversion analysis
as part of the Reduced Enrichment for Research and Test Reactors Pprogram. The
goals of the thermal hydraulic analyses were to calculate natural circulation flow rates,
coolant temperatures and fuel temperatures as a function of core power for both...
Prevention of wellbore CO₂ leakage is a critical component of any successful carbon capture, utilization, and storage program. Sporosarcina pasteurii is a bacterium that has demonstrated the potential ability to seal a compromised wellbore through the enzymatic precipitation of CaCO₃. Here we investigate the growth of S. pasteurii in a...
Aluminum single crystals were cyclically deformed in single-slip at small strain amplitudes
at 77 K to presaturation. The observed mechanical behavior is consistent with other
recent work. The dislocation substructure was analyzed in detail. The structure can be
described as consisting of dense bundles or veins of dislocation dipoles, separated...
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...
A commercially important polyelectrolyte, xanthan, was chosen for
a systematic analysis of the relationship between molecular
conformation and surface properties. In the first study the effects
of ionic strength, xanthan concentration and temperature on the
xanthan molecular conformation were investigated by potentiometric
titration. The effects of the same factors and...