tmRDB (tmRNA database)

The tmRNA database (tmRDB) is maintained at the University of Texas Health Science Center at Tyler, Texas, and accessible on the World Wide Web at the URL http://psyche.uthct.edu/dbs/tmRDB/tmRDB.html. Mirror sites are located at Auburn University, Auburn, Alabama (http://www.ag.auburn.edu/mirror/tmRDB/) and the Institute of Biological Sciences, Aarhus, Denmark (http://www.bioinf.au.dk/tmRDB/). The tmRDB provides information and citation links about tmRNA, a molecule that combines functions of tRNA and mRNA in trans-translation. tmRNA is likely to be present in all bacteria and has been found in algae chloroplasts, the cyanelle of Cyanophora paradoxa and the mitochondrion of the flagellate Reclinomonas americana. This release adds 26 new sequences and corresponding predicted tmRNA-encoded tag peptides for a total of 86 tmRNAs, ordered alphabetically and phylogenetically. Secondary structures and three-dimensional models in PDB format for representative molecules are being made available. tmRNA alignments prove individual base pairs and are generated manually assisted by computational tools. The alignments with their corresponding structural annotation can be obtained in various formats, including a new column format designed to improve and simplify computational usability of the data.

(Figure 4) Stratigraphic distribution of planktonic foraminifera in DSDP Hole 93-604

During Deep Sea Drilling Project Leg 93, upper Miocene through Quaternary sediments were continuously cored in Hole 604, located on the upper continental rise of the New Jersey transect (western North Atlantic). A detailed biostratigraphic study of these strata has been made using the vertical distribution of planktonic foraminifers. The Quaternary climatic zonation of Ericson and Wollin (1968) has been tentatively delineated and all the Pliocene zones and subzones (sensu Berggren, 1977) have been recognized. The rate of sedimentation was slow during most of the Pliocene but underwent a significant acceleration in the early Pleistocene. Quantitative variations in the distribution of planktonic foraminifers appear to be influenced by various factors, such as hydrodynamic winnowing resulting from the action of bottom currents and surficial thermal conditions caused by climatic changes. Both dissolution intervals and brief increases in the coarser detrital input seem, most of the time, to be correlated with indications of climatic cooling and may correspond to glacial events or cycles. This chapter delineates a precursor stage in the inception of Northern Hemisphere glaciation at 3 Ma and wide-scale Quaternary glacial-interglacial cycles. Data from a detailed study of Hole 604 are briefly compared with the main sedimentary and microfaunal features of contemporaneous series previously drilled along the east American margin in the northwestern Atlantic. One of the striking observations appears to be the intense redistribution of sediments that affected this region in Neogene-Quaternary times.

Procedures for quantitative ecological assessments in intertidal environments /

Mode of access: Internet.

Washington's headquarters, Valley Forge National Historical Park /

"NPS D-16"--P. [3] of cover.

Commanding officer's quarters HS-8 : Fort Larned National Historic Site, Larned, Kansas /

Shipping List #: 97-0067-P

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"April 2000."

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"UMTA Technical Assistance Program"--Cover.

Commerce, Justice, science, and related agencies appropriations for 2012 : hearings before a subcommittee of the Committee on Appropriations, House of Representatives, One Hundred Twelfth Congress, first session /

Shipping list number: 2011-0317-P (pt. 2A), 2011-0318-P (pt. 2B), 2011-0285-P (pt. 3, 4), 2011--0325-P (pt. 5), 2011-0410-P (pt. 6), 2012-0013-P (pt. 7), 2011-0383-P (pt. 8), 2011-0295-P (pt. 9).

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Mode of access: Internet.

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Southwest regional approach to data collection on California coastal Salmonids : report of a workshop held August 12-13 1998, Tiburon California /

Mode of access: Internet.