Control of the thermal properties of investment casting molds can be used to improve mold filing and control directional casting solidification. Experiments were performed to design a low thermal diffusivity investment casting mold through the use of hollow spherical refractory particles (cenospheres). The number of stucco layers in which the cenospheres were substituted for silica grain was an...

PURPOSE To report the causative organisms, management strategies, and visual outcomes in endogenous fungal endophthalmitis. DESIGN Observational case series. METHODS Microbiologic and medical records were reviewed retrospectively for all patients with culture-positive endogenous fungal endophthalmitis between January 1, 1990, and July 1, 2009. RESULTS Study criteria were met in 65 eyes of...

Quite often complex shapes are not manufacturable as a single component. Due to manufacturing constraints, the desired complex object needs to be partitioned into a number of smaller and simpler manufacturable components. After manufacturing individual components, the complex object is realized by assembling various components together. Therefore, spatial-partitioning can be used to perform sha...

This study determined the effectiveness of components of a germicidal air-cleaning system involving filtration, electrostatic polarization, and UV light on the reduction of airborne bacteria and molds. The filter alone, filter and electrostatic polarization combined, and the filter, electrostatic polarization, and UV light were found to be effective (P < 0.05) in reducing a given concentration ...

OBJECTIVE The objective of this study was to quantify and describe the distribution of the 36 molds that make up the Environmental Relative Moldiness Index (ERMI). MATERIALS AND METHODS As part of the 2006 American Healthy Homes Survey, settled dust samples were analyzed by mold-specific quantitative PCR (MSQPCR) for the 36 ERMI molds. Each species' geographical distribution pattern was exami...

Dictyostelium caveatum amebas feed upon both bacteria and the amebas of other cellular slime molds. The capacity to feed extensively upon other cellular slime molds is unique to D. caveatum amebas. They are able to phagocytose amebas larger than themselves by nibbling pieces of the cells until they are small enough to ingest. Here we report the isolation from previously cloned stock cultures of...

This paper describes an algorithm for automated design of index-plate type of multi-shot molds for manufacturing multi-material objects. This new algorithm is a significant improvement over previous mold design algorithms and it accounts for constraints associated with the index-plate molding process. Our algorithm works in the following manner. First, based on the index-plate process constrain...

Mycotoxins are toxic secondary metabolites produced by fungi in the field or during storage; these fungi are mainly saprophytic molds growing on foodstuffs or animal feeds. These molds produce chemical compounds of low molecular weight that are not detected by antigens and hence are insidious poisons with no obvious symptoms. Since 1960, mycotoxins have been considered responsible for diseases ...

The in vitro activity of Syn-2869 was compared with that of amphotericin B and itraconazole. MICs for 100 isolates of pathogenic molds belonging to 12 species were determined by a broth microdilution adaptation of the method recommended by the National Committee for Clinical Laboratory Standards. Syn-2869 and itraconazole showed comparable, good activity against the dematiaceous molds Cladophia...

Noted biologist and author John Tyler Bonner has experimented with cellular slime molds for more than sixty years, and he has done more than anyone else to raise these peculiar collections of amoebae from a minor biological curiosity to a major model organism--one that is widely studied for clues to the development and evolution of all living things. Now, five decades after he published his fir...