Relative humidity (RH) measurements acquired in orographic wave cloud and cirrus environments are used to investigate the temperature‐dependent RH required to nucleate ice crystals in the upper troposphere, RHnuc(T). High ice‐supersaturations in clear air—conducive to the maintenance of aircraft contrails yet below RHnuc and therefore insufficient for cirrus formation—are not...
Since its introduction in the early 1990s, the quick growth of the World Wide Web
(WWW) traffic raises the question of whether past Local Area Network (LAN) packet
traces still reflect the current situation or whether they have become obsolete. For this
thesis, several LAN packet traces were obtained by...
For gender-related information, previous studies have shown that children of
preschool age are more likely to remember schema-consistent information
over schema-inconsistent information. In this study, an attempt was made to
boost children's recognition for inconsistent information. In order to do this,
children were presented with pictures of both gender-consistent and...
Most plant toxicology tests developed in support of environmental laws use a single stress applied to an individual plant. While tests using individual species or stresses require fewer resources and are easier to interpret, they are under increasing criticism for being unrealistic and missing important ecological interactions. The objective of...
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...
Rotary screw traps were used to estimate Pacific lamprey smolt yield,
outmigration timing, age structure and sex ratio for Tenmile Creek basin, Lane County,
Oregon. Traps were fished March to June and August to December 1994 and March to
June and October to December 1995. Lamprey smolts caught in the...
Ponderosa pine (Pinus ponderosa Dougl. ex Laws.) is the most widely planted
species in the Patagonian Andes region of Argentina for economic development.
However, information on site quality and yield is so limited that potential forest
investors and managers do not have a reliable basis on which to make sound...