Dale Griffin, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 87
Pathogenic human viruses are present in residential canals Pathogenic human viruses are present in residential canals
No abstract available.
Authors
Dale W. Griffin
Navigational inlets are conduits for land-based sources of pollution Navigational inlets are conduits for land-based sources of pollution
No abstract available.
Authors
J.C. Flutch, Dale W. Griffin, Erin K. Lipp
The use of epifluorescent microscopy and quantitative polymerase chain reaction to determine the presence/absence and identification of microorganisms associated with domestic and foreign wallboard samples The use of epifluorescent microscopy and quantitative polymerase chain reaction to determine the presence/absence and identification of microorganisms associated with domestic and foreign wallboard samples
Epifluorescent microscopy and quantitative polymerase chain reaction (qPCR) were utilized to determine the presence, concentration and identification of bacteria, and more specifically sulfate reducing bacteria (SRB) in subsamples of Chinese and North American wallboard, and wallboard-mine rock. Bacteria were visible in most subsamples, which included wallboard-lining paper from each...
Authors
Dale W. Griffin
The high life: Transport of microbes in the atmosphere The high life: Transport of microbes in the atmosphere
Microbes (bacteria, fungi, algae, and viruses) are the most successful types of life on Earth because of their ability to adapt to new environments, reproduce quickly, and disperse globally. Dispersal occurs through a number of vectors, such as migrating animals or the hydrological cycle, but transport by wind may be the most common way microbes spread. General awareness of airborne...
Authors
D.J. Smith, Dale W. Griffin, D.A. Jaffe
Observations on the use of membrane filtration and liquid impingement to collect airborne microorganisms in various atmospheric environments Observations on the use of membrane filtration and liquid impingement to collect airborne microorganisms in various atmospheric environments
The influence of sample-collection-time on the recovery of culturable airborne microorganisms using a low-flow-rate membrane-filtration unit and a high-flow-rate liquid impinger were investigated. Differences in recoveries were investigated in four different atmospheric environments, one mid-oceanic at an altitude of ~10.0 m, one on a mountain top at an altitude of ~3,000.0 m, one at ~1...
Authors
Dale W. Griffin, C. Gonzalez, N. Teigell, Terry Petrosky, D.E. Northup, M. Lyles
Microbial survival in the stratosphere and implications for global dispersal Microbial survival in the stratosphere and implications for global dispersal
Spores of Bacillus subtilis were exposed to a series of stratosphere simulations. In total, five distinct treatments measured the effect of reduced pressure, low temperature, high desiccation, and intense ultraviolet (UV) irradiation on stratosphereisolated and ground-isolated B. subtilis strains. Environmental conditions were based on springtime data from a mid-latitude region of the...
Authors
David J. Smith, Dale W. Griffin, Richard D. McPeters, Peter D. Ward, Andrew C. Schuerger
Science and Products
Filter Total Items: 87
Pathogenic human viruses are present in residential canals Pathogenic human viruses are present in residential canals
No abstract available.
Authors
Dale W. Griffin
Navigational inlets are conduits for land-based sources of pollution Navigational inlets are conduits for land-based sources of pollution
No abstract available.
Authors
J.C. Flutch, Dale W. Griffin, Erin K. Lipp
The use of epifluorescent microscopy and quantitative polymerase chain reaction to determine the presence/absence and identification of microorganisms associated with domestic and foreign wallboard samples The use of epifluorescent microscopy and quantitative polymerase chain reaction to determine the presence/absence and identification of microorganisms associated with domestic and foreign wallboard samples
Epifluorescent microscopy and quantitative polymerase chain reaction (qPCR) were utilized to determine the presence, concentration and identification of bacteria, and more specifically sulfate reducing bacteria (SRB) in subsamples of Chinese and North American wallboard, and wallboard-mine rock. Bacteria were visible in most subsamples, which included wallboard-lining paper from each...
Authors
Dale W. Griffin
The high life: Transport of microbes in the atmosphere The high life: Transport of microbes in the atmosphere
Microbes (bacteria, fungi, algae, and viruses) are the most successful types of life on Earth because of their ability to adapt to new environments, reproduce quickly, and disperse globally. Dispersal occurs through a number of vectors, such as migrating animals or the hydrological cycle, but transport by wind may be the most common way microbes spread. General awareness of airborne...
Authors
D.J. Smith, Dale W. Griffin, D.A. Jaffe
Observations on the use of membrane filtration and liquid impingement to collect airborne microorganisms in various atmospheric environments Observations on the use of membrane filtration and liquid impingement to collect airborne microorganisms in various atmospheric environments
The influence of sample-collection-time on the recovery of culturable airborne microorganisms using a low-flow-rate membrane-filtration unit and a high-flow-rate liquid impinger were investigated. Differences in recoveries were investigated in four different atmospheric environments, one mid-oceanic at an altitude of ~10.0 m, one on a mountain top at an altitude of ~3,000.0 m, one at ~1...
Authors
Dale W. Griffin, C. Gonzalez, N. Teigell, Terry Petrosky, D.E. Northup, M. Lyles
Microbial survival in the stratosphere and implications for global dispersal Microbial survival in the stratosphere and implications for global dispersal
Spores of Bacillus subtilis were exposed to a series of stratosphere simulations. In total, five distinct treatments measured the effect of reduced pressure, low temperature, high desiccation, and intense ultraviolet (UV) irradiation on stratosphereisolated and ground-isolated B. subtilis strains. Environmental conditions were based on springtime data from a mid-latitude region of the...
Authors
David J. Smith, Dale W. Griffin, Richard D. McPeters, Peter D. Ward, Andrew C. Schuerger