The droplet formation process in the vicinity of the nozzle exit and the behavior of a spreading droplet during impingement on a smooth glass surface were studied. Two nozzle geometries were tested. The first case was a stiff stainless steel nozzle plate 0.787 mm thick. The second case was a...
Biocompatible hydrogels composed of covalently crosslinked, chemically modified hyaluronan (HA), gelatin (Gtn), and heparin (Hp) were synthesized for controlled release of human vascular endothelial growth factor (VEGF) or basic fibroblast growth factor (bFGF). We hypothesized that inclusion of small quantities of heparin in these gels would result in regulated growth...
The image of Native Americans in the United States has changed through
the passage of time. Part of this change is directly related to the representation of
their cultures in a museum setting and the inception of cultural resource laws that
govern them. This research looks at four museums, two...
Invasion by exotic species can pose a major challenge for developing native
plant communities in wetland restoration projects. Often native plant communities
do not develop as anticipated in restored wetlands due to colonization by exotic
species that dominate the native plant community. Despite the time and expense to
restore wetlands,...
The continuation of geoarchaeological investigations at Tseriadun (35CU7) contributes to the understanding of the site's depositional history and the associated environments, thereby identifying the long term geomorphic change in the area and providing the environmental context for local human activity as it is reflected in the archaeological record. Meeting this...
Problem-based learning (PBL) is one type of inquiry-based learning. Many community college instructors use inquiry-based learning as an instructional strategy. There is much literature on the use of problem-based learning in undergraduate, graduate and medical school education, with a multitude of examples of specific techniques and problems to be addressed,...
Few parenting curricula exist that are culturally-appropriate to the Mexican-immigrant population served by many programs. The Even Start family literacy program has four integrated components, making it more difficult to find appropriate curricula for the families they serve. During Winter 2006, discussion groups were conducted with participants in two Even...
An autonomous, in-situ instrument was developed to detect dissolved copper in seawater, suitable for deployment on time scales from weeks to months. A commercially available in-situ nitrate analyzer (YSI 9600) was adapted to measure copper (II) in seawater by chemiluminescence. Modifications included construction of a photomultiplier (PMT) based detector and...
Cryptographic devices leak timing and power consumption information that is easily measurable, radiation of various levels, and more. Such devices also have additional inputs, other than plaintext and keys, like voltage, which can be modified to force the device to produce certain faulty outputs that can be used to reveal...