Organic and inorganic geochemical measurements of sediment core GeoB7702-3

It has long been known that extreme changes in North African hydroclimate occurred during the late Pleistocene yet many discrepancies exist between sites regarding the timing, duration and abruptness of events such as Heinrich Stadial (HS) 1 and the African Humid Period (AHP). The hydroclimate history of the Nile River is of particular interest due to its lengthy human occupation history yet there are presently few continuous archives from the Nile River corridor, and pre-Holocene studies are rare. Here we present new organic and inorganic geochemical records of Nile Basin hydroclimate from an eastern Mediterranean (EM) Sea sediment core spanning the past 28 ka BP. Our multi-proxy records reflect the fluctuating inputs of Blue Nile versus White Nile material to the EM Sea in response to gradual changes in local insolation and also capture abrupt hydroclimate events driven by remote climate forcings, such as HS1. We find strong evidence for extreme aridity within the Nile Basin evolving in two distinct phases during HS1, from 17.5 to 16 ka BP and from 16 to 14.5 ka BP, whereas peak wet conditions during the AHP are observed from 9 to 7 ka BP. We find that zonal movements of the Congo Air Boundary (CAB), and associated shifts in the dominant moisture source (Atlantic versus Indian Ocean moisture) to the Nile Basin, likely contributed to abrupt hydroclimate variability in northern East Africa during HS1 and the AHP as well as to non-linear behavior of hydroclimate proxies. We note that different proxies show variable gradual and abrupt responses to individual hydroclimate events, and thus might have different inherent sensitivities, which may be a factor contributing to the controversy surrounding the abruptness of past events such as the AHP. During the Late Pleistocene the Nile Basin experienced extreme hydroclimate fluctuations, which presumably impacted Paleolithic cultures residing along the Nile corridor.

Sand resources of southeastern Lake Michigan /

"July 1979."

Sediment distribution, sand resources, and geologic character of the inner continental shelf off Galveston County, Texas /

"July 1979."

Measurement techniques for coastal waves and currents /

"November 1976."

Data collection methods for sand inventory-type surveys /

"March 1980."

An inexpensive, portable vibracoring system for shallow-water and land application /

"July 1981."

Nonionic detergents in nonaqueous solvents,

The behavior of [alpha]-monoglycerides.

Historiske romaner;

[1] Inledning. Valdemar Seier.--[2] Erik Menveds barndom.--[3]Kong Erik og de fredløse.--[4] Prins Otto af Danmark.

Specimen hermeneutico-theologicum de loco Evangelii Lucae II 25-35, /

"... quod, annuente summo numine, praeside Gisberto Joanne Rooijens, theol. doct. in ill. Amstel. Athen. theol. et hist. eccles. prog., ad publicam disceptationem proponit ..."

Zeven stukjes ten vervolge op de scheiding van Holland en Belgie, uitgegeven in october, november en december 1830.

Each work has individual title-page and pagination.

Ophelderingen aangaande de rechtspleging van 's lands advocaat, Johan van Oldenbarneveld.

"Tweede stukjen, zijnde een vervolg op de Inlichtingen omtrent het karakter van Prins Maurits van Nassau."

School of Nursing Class of 1988

Top Row: Clare L. Allen, Kathryn M. Antekeier, Debra Ayanian, Kristin E. Baker, Lynn A. Bluck, Linda A. Bochenek, Samatha Brennan, Julie A. Coburn, Anne E. Cooksey, Susan L. Cross, Kimberli S. Darvishian, Natalie, J. Dichtiar, Joanne M. Dork

Row 2: Mary K. Emerson, Marion A. Ferguson, Amy S. Fuhst, JAckie Vicari, Patti Geiman, Denise B. Sorenson, Lisa Maastricht, Karen L. Bloom, Natalie R. Geiss, Elizabeth A. Hamann, Liesl M. Hintermaier

Row 3: Cynthia M. Hubert, Mercedes Castro, Irene Hundt

Row 4: Kris A. Hurley, Katherine A. Jeffery, Kathy M. Jhung, Rebecca J. Kantor, Denise J. Kehrer, Colleen E. Kelly

Row 5: Judy A. Kettenstock, Rhonda L. Kinney, Kimberly Klarich, Kimberly J. Kdning, Dianne M. Kraft, Brenda M. LaChapelle

Row 6: Lavonne L. Lang, Laurie A. Langwerowski, Rebecca S. Leak, Sally Sample, Violet Barkauskas, Rhetaugh G. Dumas, Shake Ketefian, Janice B. Lindberg, Elisabeth Pennington, Sharon A. Libby, Bonnie M. McDonald, Patricia A. Mehall

Row 7: Kristen K. Miller, Kelley L. Ong, Alice I. Paik, Michelle L. Pardee, Edith H. Price, Anke Winkler-Prins, Lori L. reisig, Camille A. Rogell, Mindy A. Rosenberg, Richard E. Ross, Julie A. Sarotte, Laura A. Schippers, Rose M. Schliska, Marilyn H. Schwartz

Row 8: Heidi Simonelli, Victoria J. Sizemore, Diane L. Sorenson, Deborah R. Sproul, Katherine Stewart, Kim M. Strong, Barbara J. Sullivan, Pamela S. Taukert, Kristin A. Treash, Kimberly Vander Heuvel, Sherry Vanootighem, Annmarie Veraldi, Idella A. Wesselman

Het blijvend resultaat der scheelzienoperatie.

Thesis (doctoral)--Universiteit van Amsterdam.

Vloeiende mengkristallen bij binaire stelsels.

Thesis (doctoral)--Universiteit van Amsterdam.

Difficult macrocyclizations: New strategies for synthesizing highly strained cyclic tetrapeptides

Cyclic tetrapeptides are an intriguing class of natural products. To synthesize highly strained cyclic tetrapeptides; we developed a macrocyclization strategy that involves the inclusion of 2-hydroxy-6-nitrobenzyl (HnB) group at the N-terminus and in the middle of the sequence. The N-terminal auxiliary performs a ring closure/ring contraction role, and the backbone auxiliary promotes cis amide bonds to facilitate the otherwise difficult ring contraction. Following this route, the all-L cyclic tetrapeptide cyclo-[Tyr-Arg-Phe-Ala] was successfully prepared.