Four different plot types were established in shrub and tree comunitities in Little Elk Valley in southwest Oregon. Ten functional (F) plots were cleared of all vegetation in a radius of three times the height of the surrounding vegetation around a single Pacific madrone (Arbutus menziesii Pursh.) tree. Ten competition...
Ozone is recognized as one of the most dangerous irritants to eyes, throat, lungs and etc .. Chamber studies consistently have demonstrated adverse effects of ozone on human lung function. The results of epidemiological studies, however, have been controversial, partly because there are many factors that affect human lung function....
Until now, most hypertext systems have been implemented on large scale computers. With improvements in microprocessors and development of graphical user interfaces, personal computers can run systems that previously needed the power of a mainframe. The low costs and widespread use of PCs will enable many people to use hypertext...
The purpose of the study was to assess county extension agents'
knowledge of geotextiles; to determine their current level of
information and their location on an adoption-diffusion curve; and to
determine the agents' attitudes toward the potential use of
geotextiles in agriculture, specifically in soil erosion control.
A questionnaire was...
The effects of household exposure to cigarette smoke on the incidence of respiratory illness were examined among 1007 18 month old children at Lu-wan District, Shanghai City, People's Republic China. The passive smoking quantity was estimated by summing the total daily cigarette consumption of family members. No mothers who smoked...
Many failures of interpersonal communication and coordination in the aircraft cockpit have been found to occur as a result of poor management of flightdeck 'resources'. Crew Resource Management (CRM) is a concept that has evolved within the aviation community to specifically address this issue of resource management. The concept of...
Significant improvements in manufacturing productivity has resulted from
implementing cellular manufacturing systems (CMSs) in small to medium sized batch-oriented
manufacturing systems. The work reported in this thesis illustrates the effect of
cell locations in dealing with the processes of machine duplication and part
subcontracting under budgetary restrictions. In addition, this...
The purpose of this study was to develop a conceptual framework to enhance the redesign of a safety system. To identify the limitations of the current safety system, the concepts of congruency and integration of the safety function within a specific university environment were examined through a case study methodology....
The researcher explored interpersonal trust (a construct from the fields of psychology
and sociometry) in the context of engineering work groups. The study explored the potential
antecedents of trust and the relationships among trust, creativity, communication, emotional
empathy and positive affect. The study attempts to argue that 1) trust is...
Asthma prevalence in children under age 18 has risen steadily in the U.S. since the mid-1970s. Most researchers attribute this increase to air pollutants, socioeconomic status or urban residence. This study examined asthma prevalence in Lane County, Oregon, using children's asthma hospital discharges (1990-1995), and data from 10 of 16...