526,690 research outputs found
The subzero microbiome: Microbial activity in frozen and thawing soils
No full textMost of the Earth's biosphere is characterized by low temperatures (<5 °C) and cold-adapted microorganisms are widespread. These psychrophiles have evolved a complex range of adaptations of all cellular constituents to counteract the potentially deleterious effects of low kinetic energy environments and the freezing of water. Microbial life continues into the subzero temperature range, and this activity contributes to carbon and nitrogen flux in and out of ecosystems, ultimately affecting global processes. Microbial responses to climate warming and in particular, thawing of frozen soils are not yet well understood although the threat of microbial contribution to positive feedback of carbon flux is substantial. To date, several studies have examined microbial community dynamics in frozen soils and permafrost due to changing environmental conditions, and some have undertaken the complicated task of characterizing microbial functional groups and how their activity changes with changing conditions, either in situ or by isolating and characterizing macromolecules. With increasing temperature and wetter conditions microbial activity of key microbes and subsequent efflux of greenhouse gases also increase. In this review, we aim to provide an overview of microbial activity in seasonally frozen soils and permafrost. With a more detailed understanding of the microbiological activities in these vulnerable soil ecosystems, we can begin to predict and model future expectations for carbon release and climate change.Peer reviewe
Letter from Walter M. Voll, U. S. S. Oklahoma, San Pedro, California, to Mary Lee Langolf, Louisville, Kentucky, September 26, 1931
No full textA letter written by Walter M. Voll from the U.S.S. Oklahoma based in San Pedro, California on September 26, 1931 to Mary Lee Langolf, a neighbor in Louisville, Jefferson County, Kentucky
Article: Dallas M. Lee, December 1967.
No full textArticle: 8.25 x 10.75 inches. (21 cm x 27.3 cm)Article titled "Planned Communities: Who's Shaping the Future," by Dallas M. Lee, printed in Home Missions, December 1967. Lee writes about Reston, a young planned city who is striving to capture the best of relaxed country living and the big city cultural and commercial advantages in order to serve an urban area just west of the nation's capital. Lee also writes that city developers in Reston and Columbia, MD, have sought the advice of churchmen and offered to share the planned city with the church as as experimental laboratory for fostering better human beings. Home Missions is published monthly by the Home Mission Board, Southern Baptist Convention. Planned Communitiy Archives Collection, 444.03
[Report on Officer's Duties by M. G. Hall in regards to Lee Harvey Oswald's death #2]
No full textReport on Officer's duties by M. G. Hall, in regards to Lee Harvey Oswald's murder. Hall states that he went into the office on Sunday, November 24, 1963, when he learned of Oswald's death. He assisted in routine office work and spoke to Jack Ruby, along with F. B. I. Agent Hall
[Report on Officer's Duties by R. M. Sims, in regards to Lee Harvey Oswald's death #2]
No full textReport on Officer's duties by R. M. Sims, in regards to Lee Harvey Oswald's death. Sims states that he was off duty when he learned that Oswald had been shot. He reported to work and took an affidavit from Jack Ruby's roommate, George Senator
[Report on Officer's Duties by R. M. Sims, in regards to Lee Harvey Oswald's death #1]
No full textReport on Officer's duties by R. M. Sims, in regards to Lee Harvey Oswald's death. Sims states that he was off duty when he learned that Oswald had been shot. He reported to work and took an affidavit from Jack Ruby's roommate, George Senator
[Report on Officer's Duties by M. G. Hall in regards to Lee Harvey Oswald's death #1]
No full textReport on Officer's duties by M. G. Hall, in regards to Lee Harvey Oswald's murder. Hall states that he went into the office on Sunday, November 24, 1963, when he learned of Oswald's death. He assisted in routine office work and spoke to Jack Ruby, along with F. B. I. Agent Hall
Interview with Lee Stauffer
No full textAnn Pflaum interviews Lee Stauffer, former dean and professor in the School of Public Health.Stauffer, Lee; Pflaum, Ann M.. (1999). Interview with Lee Stauffer. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/48351
[School Reports of Lee Harvey Oswald #2]
No full textCriminal intelligence report by H. M. Hart discussing academic reports received from the Fort Worth Public Schools. These records regard the schooling of Lee Harvey Oswald
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