265,162 research outputs found
Fossil carotenoids and paleolimnology of meromictic Mahoney Lake, British Columbia, Canada
No full textVertical distribution of fossil carotenoids in a sediment core from meromictic Mahoney Lake was studied. Besides okenone and demethylated okenone, lutein and zeaxanthin and-carotene isomers were identified. No carotenoids typical for purple nonsulfur or green sulfur bacteria were detected. The ratio of zeaxanthin to lutein (above 1:1 in all samples) indicates a dominance of cyanobacteria over green algae in the phytoplankton assemblages of the past. Okenone, which is found exclusively in Chromatiaceae, was the dominating carotenoid in all sediment zones.
The oldest sediment layers containing okenone were deposited 11 000 years ago. Between 9000 and 7000 and since 3000 years b.p., Chromatiaceae reached a considerable biomass in the lake. Vertical changes in okenone concentration were not related to changes of paleotemperatures. In contrast, okenone concentrations decreased during periods of volcanic ash input. During most of the lake history, however, mean okenone concentrations were positively correlated with sedimentation rates. This indicates that vertical changes of okenone concentration in the sediment reflect past changes of purple sulfur bacterial biomass in the lake.
According to these results, the past limnology of Mahoney Lake resembled that of the present with a sulfide-containing monimolimnion and a well-developed population of okenone-bearing purple sulfur bacteria
Letter from Bishop Bernard J. Mahoney to Hagan
No full textHolograph letter from Bishop Bernard J. Mahoney, Bishop's House, Sioux Falls South Dakota (U.S.A.), to (Hagan), with Easter greetings for him and the circle at the five o'clock tea. Reporting easily on joys and problems connected with his new bishopric. To illustrate 'some of the culture out this way', recounting the rejoinder given by a priest whom he had to reprimand for violence against congregation members: '"Bishop, the man I hit called me a red-headed son- of-a-bitch". You can imagine the confusion of the ordinary at a subsumption of that kind'. Expressing loneliness for Rome; Hagan will find his successor, Mooney, alright
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Future directions in frameworks of holistic approaches in (re)integration and (re)settlement
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Daniel Mahoney Discharge (4 of 4)
No full textThe Discharge Card for Daniel Mahoney of Newport, 1889 August 31, and his request for re-employment ten years later. His request reads: Newport Nov. 25, 1899. I the undersign, formally employed at the Torpedo Station do hereby make application for employment. I was discharged as rating laborer but my occupation always was hostler. For reference I refer to J.J. Moore, and George A. Brown. Enclosed you will my discharge card. I am respectfully Daniel Mahoney To Com. N.E. Masonhttps://digital-commons.usnwc.edu/torpedo/1018/thumbnail.jp
Daniel Mahoney Discharge (1 of 4)
No full textThe Discharge Card for Daniel Mahoney of Newport, 1889 August 31, and his request for re-employment ten years later. His request reads: Newport Nov. 25, 1899. I the undersign, formally employed at the Torpedo Station do hereby make application for employment. I was discharged as rating laborer but my occupation always was hostler. For reference I refer to J.J. Moore, and George A. Brown. Enclosed you will my discharge card. I am respectfully Daniel Mahoney To Com. N.E. Masonhttps://digital-commons.usnwc.edu/torpedo/1015/thumbnail.jp
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