Anterior cruciate ligament injuries are common in a wide variety of sports and most frequently occur during activities requiring rapid deceleration such as landing and cutting. Deceleration of the body's center of mass during movement results primarily from eccentric muscle contraction. This type of contraction serves to absorb energy from...
The winter and summer growth of varieties of tall fescue
(Festuca arundinacea Schreb.) that had originated from the Mediterranean region (Oregon 1000 and Tunisia) and northern Europe (Alta)
were studied outdoors in the Mediterranean climate of western Oregon,
and in greenhouses and controlled environment chambers. Treatments
of temperature, photoperiod and...
Incubation experiments with an acid poorly drained soil have
shown that the application of neutral soluble salts influenced the level
of extractable Mn. The application of a salt which lowered the soil
pH either increased the extractable Mn or retarded the oxidation
and/or fixation of extractable Mn. This effect was...
Controlled environment chamber and laboratory studies were
carried out to evaluate selectivity and chemodynamics of bromoxynil
(3,5-dibromo-4-hydroxybenzonitrile) in winter wheat (Triticum
aestivum L.) 'Nugaines', a tolerant species, and coast fiddleneck
(Amsinckia intermedia Fisch. & Mey), a susceptible species.
A comparison of ED₅₀ values, based upon reduction of whole
plant growth,...
Preliminary studies with a dog (Canis familiaris) and a coyote
(Canis latrans) showed that these carnivores can serve as definitive
hosts in the life cycle of Sarcocystis fusiformis of cattle (Bos
taurus) and a microscopic Sarcocystis of mule deer (Odocoileus
hemionus hemionus). Preliminary studies to determine effects of the
cervine...
The current study examined relations between temperamental reactivity at 6 months and social competence in first grade, including if emotion regulation at 54 months played a role as mediator and/or moderator between temperamental reactivity and social competence in first grade. Previous studies have shown that children who are high on...
Delta-sigma modulators are currently a very popular technique for making high-resolution
analog-to-digital and digital-to-analog converters (ADCs and DACs). Most
delta-sigma modulators in production today employ single-bit quantization because a 1-bit DAC is inherently linear, whereas a multi-bit DAC is not. Were it not for this drawback,
the use of multi-bit...
ROP GTPases are crucial regulators of pollen tube growth. The Rop GTPase family in maize consists of nine known rop genes, ropl-rop9. A subset of these genes (rop2, rop8, and rop9) are expressed in pollen. The rop2 and rop9 genes are a highly conserved duplicate gene pair of ancient origin....