The MW profiles of proanthocyanidin polymers (condensed tannins) from 32 samples representing a wide range of plant tissues of many different species have been obtained by gel permeation chromatography of the peracetate derivatives. The tannins vary widely in MW, with Al. values for the peracetates in the range 1600-5500. The MW profiles vary greatly from those with narrow, rather smooth distri...

Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, USA Center for Marine Biodiversity and Conservation, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92083, USA Caribbean Research and Management of Biodiversity (CARMABI), Piscaderabaai z/n, PO Box 2090, Willemstad, Curacao Aquatic ...

a San Diego State University, Dept. of Computer Science, 5500 Campanile Dr., San Diego, CA 92182-7720, USA b Scripps Institution of Oceanography, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0205, USA c NOAA National Marine Fisheries Service, Fisheries Science Centers, 1315 East-West Highway, Silver Spring, MD 20910, USA d Marine Geospatial Ecology Lab, Nicholas Sc...

Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA Department of Nuclear Engineering, Texas A&M University, College Station, TX 77845, USA IBS Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, 440-746, Republic of Korea Departamen...

An inductively coupled plasma/selected-ion flow tube (ICP/SIFT) tandem mass spectrometer has been employed in a systematic survey of the room-temperature kinetics of reactions of NO with 13 atomic lanthanide cations from Ce+ to Lu+ (excluding Pm+). The atomic ions are produced at ca. 5500 K in an ICP source and are allowed to decay radiatively and to thermalize by collisions with Ar and He atom...

The abrupt, range-wide decline of Tsuga canadensis ~5500 calibrated years before present (cal. yr BP) is one of the most-studied events in North American paleoecology. Little attention, however, has been given to an earlier Tsuga decline, dated to ~6000 cal. yr BP in southern Ontario, Canada. To investigate whether this event occurred elsewhere in eastern North America, we analyzed the middle-H...

Correspondence: eduardo M SalinasStefanón instituto de Fisiología, Benemérita Universidad Autónoma de Puebla 14 Sur 6301, CU, San Manuel, Puebla, Puebla CP 72570, México Tel +222 229 5500 Fax +222 229 5500 ext 7301 email [email protected] Abstract: The aim of our computed study was to examine the possible binding site of primaquine (PQ) using a combined homology protein modeling, automated d...

A late-Holocene vegetation record is presented from the southwest coast of New Caledonia. Lac Saint Louis is a freshwater swamp at 3m a.s.l. adjacent to the River Coulee delta. Pollen analysis, charcoal analysis, radiocarbon dating and stratigraphic analyses have been used to reconstruct the vegetation and sedimentary history of the swamp. The sediment record commences at 6000 BP and reflects r...

Figure 2. Evolution of tooth centroid size (M2) (y-axis) through time (x-axis) for small domestic pigs (d), large pigs with domestic tooth shape (D) and large pigs with wild tooth shape (W). The schematic (shadowed) small pig of the Early Neolithic represents the small domestic pigs present in Romania at this period based on traditional metrical data (humerus, [26]) but not present in our data....