Domestic dogs’, Canis familiaris, responsiveness to human action has been a topic of scientific interest for almost two decades. However, are all breeds of domestic dog equally prepared to succeed on humanguided object-choice tasks? In the current study we compared three breeds of dog with distinct predatory motor pattern sequences...
Although the literature is replete with techniques to assist
the researcher with the evaluation task, very few techniques
regarding an effective process for evaluating developmental
education programs have emerged. Those techniques that have
emerged have been criticized for not producing useful
results.
The central purpose of this research was to...
Previous research suggested that 16-week old dog pups, but not wolf pups, show attachment behaviour to a human caregiver. Attachment to a caregiver in dog pups has been demonstrated by differential responding to a caregiver compared to a stranger in the Ainsworth Strange Situation Test. We show here that 3–7...
During his lifetime C. S. Lewis chose to speak to Christians in plain and simple language that they could understand. Lewis taught and defended truths that he felt were discernible through reason. Morality, free will, and the divinity of Jesus Christ were fundamental to his core beliefs and teachings. His...
Field and laboratory tests were carried out to investigate the
survival of the root-nodule bacterium, Rhizobium trifolii, when
inoculated onto seeds of the pasture legume subterranean clover,
(Trifolium subterraneum L.), in order to improve the nodulation
and establishment of this plant in acid soils.
Field experiments were carried out in...
The ecological interrelationships of mites occurring in
and near the Hood River Valley, Oregon, pome fruit orchards
were investigated to determine the possibility of an integrated
control program using the species already present.
Survey sampling methods were used to study mites on wild
hosts (Crataegus douglasii Lindl., Crataegus columbiana Howell,...
The motions of a small spar buoy were measured in deep water.
The measured variables were two buoy tilts, three accelerations, two
wave slopes and the wave height. The variables were corrected for
buoy motion and rotated to stationary coordinates, Fast Fourier
Transformed, and analyzed spectrally. Analysis included power
spectra,...
The thesis examines the principal air-sea properties at Ocean
Station Vessel N (30N 140W). In a descriptive section, meteorological
and oceanographic data for N are analyzed over 20 years (1951-1970)
and 7 years (1964-1970), respectively. A rainfall estimate is constructed
for the 20 year period. The yearly average rainfall is...
Sweet cherry scion cultivars have been selected over millennia for many reasons, but over the past century, breeding programs have concentrated mainly on achieving improved characteristics such as yield, taste, fruit size, fruit firmness, fruit color, precocity, and resistance to fruit cracking and disease. In contrast, rootstock cultivars have only...
A mesoscale model is used to examine the dynamics of northwest flow over the Santa Barbara Channel region.
Three cases are considered, each characterized by typical summertime synoptic conditions, but with differences
in pressure gradient strength and marine boundary layer depth (MBL). The first case examines a relatively deep
MBL...
Pesticides, including insecticides, acaricides, fungicides, bactericides, and herbicides are essential for maintaining healthy grape crops with reliable
yields and quality. In many instances, pesticides have become less effective as target organisms have developed resistance. The first record of resistance dates to 1897, when orchardists began having problems controlling San Jose...
Month-long simulations using the fifth-generation Pennsylvania State University–National Center for Atmospheric
Research Mesoscale Model (MM5) with a horizontal resolution of 9 km have been used to investigate
perturbations of topographically forced wind stress and wind stress curl during upwelling-favorable winds along
the California and Baja California coasts during June 1999....
Grape phylloxera, Daktulosphaira vitifoliae (Fitch) (Homoptera: Phylloxeridae), is an aphidlike insect that feeds aggressively on grape roots. Phylloxera is native to the eastern and southeastern United States, where native American grape species coevolved with the insect.
The aim of the study was to determine the effect of modified atmosphere (MA) packages on the external quality of organically grown lowbush blueberry and half-highbush blueberry ('Northblue') and the nutritional value of the fruits. Fruits were divided into plastic punnets and stored as follows: regular atmosphere (RA), punnets without...
Pesticides—including insecticides, acaricides, fungicides, and bactericides are essential for maintaining healthy crops with reliable yields and quality. In many instances, pesticides have become less effective as target organisms have developed resistance. The first record of resistance dates to 1897, when orchardists began having problems controlling San Jose scale (Quadraspidiotus perniciosus...
This guide is developed for use by managers of commercial vineyards in Oregon. It provides recommendations for chemicals, formulations and usage rates of products that are intended to prevent, manage and control vineyard diseases, insects, mites and weeds. When considering a pesticide, evaluate its efficacy and its impact on beneficial...
Learn the most effective techniques for controlling insects, weeds and disease on wine grapes in Oregon. This comprehensive publication for growers covers strategies for controlling powdery mildew, botrytis bunch rot and spider mites, in addition to resources for organic growers. Easy-to-read tables list pesticide application rates and timing.
This publication reviews the growth stages of grapes. For each growth stage (or group of growth stages), the document lists the more effective pesticides used to control insects, weeds, and disease; their rates; and application timing for Oregon grape growers. It also covers the effectiveness of various fungicides for control...
This pest management guide is developed for use by vineyard managers in Oregon. It provides recommendations for chemicals, formulations, and usage rates of products that are intended to prevent, manage, and control vineyard diseases, insects, mites, weeds, and vertebrate pests. When selecting a pesticide, consider its efficacy and its impact...