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- PROTOSALVINIA DAWSON AND ASSOCIATED CONODONTS OF THE UPPER TRACHYTERA ZONE, FAMENNIAN, UPPER DEVONIAN, IN THE EASTERN UNITED STATES
- ABSTRACT- Protosalvinia first occur in association with conodonts of the Upper trachytera Zone and below the Three Lick Bed in the Ohio Shale and the Ellicott Shale of the central and northern Appalachian Basin, as well as in the Clegg Creek Member of the New Albany Shale of the Illinois...
- Research articles 2009-01-01
- Time-resolved Singlet Oxygen Phosphorescence Measurements from Photosensitized Experiments in Single Cells: Effects of Oxygen Diffusion and Oxygen Concentration
- ABSTRACT Time-resolved singlet oxygen, O2(a^sup 1^?^sub g^), phosphorescence experiments have been performed in single cells upon pulsed laser irradiation of a photosensitizer incorporated into the cell. Data recorded as a function of the partial pressure of ambient oxygen to which the cell is exposed reflect apparent values for the intracellular...
- Research articles 2008-09-01
- Gymnasts' parents angry over age flap
- BEIJING -- The parents of the Chinese gymnasts are indignant, the International Olympic Committee sounds satisfied and the Beijing Games are almost over. Yet questions persisted Friday about the ages of China's gold-medal women's gymnastics team. Are they 14? Are they 16? Hoping to put a...
- Research articles 2008-08-23
- A Role for Internal Water Molecules in Proton Affinity Changes in the Schiff Base and Asp85 for One-way Proton Transfer in Bacteriorhodopsin[dagger]
- ABSTRACT Light-induced proton pumping in bacteriorhodospin is carried out through five proton transfer steps. We propose that the proton transfer to Asp85 from the Schiff base in the L-to-M transition is accompanied by the relocation of a water cluster on the cytoplasmic side of the Schiff base from a site...
- Research articles 2008-07-01
- Ultra-low Temperature Oxidation of 5,6-Dihydroxyindole: A Novel Approach to Study Synthetic Melanogenesis[dagger]
- ABSTRACT The detailed structure of melanin remains elusive due to the complexity and insolubility of the pigment. Herein we describe a novel oxidation of 5,6-dihydroxyindole DHI as a means to characterize soluble intermediates formed prior to oligomerization. The approach entails the use of a biomimetic copper-peroxo oxidant, at ultra-low temperature...
- Research articles 2008-05-01
- Distribution, population structure and habitat use of the endangered Saint Francis Satyr butterfly, Neonympha mitchellii francisci
- INTRODUCTION St. Francis' satyr, Neonympha mitchellii francisci, is one of the most imperiled butterflies in North America. First discovered in 1983, its range is restricted to Ft. Bragg, North Carolina NC, where several small subpopulations persist in glades along streams (Parshall and Kral, 1989; Hall, 1993; Hall and Hoffman,...
- Research articles 2008-04-01
- Igneous rock associations 10. Komatiites
- SUMMARY Komatiites are ultramafic volcanic rocks that occur mainly in Archean and Paleoproterozoic greenstone belts. These olivine-rich rocks are assumed to have crystallized from magmas that have about 28-30 wt% MgO. They are characterized by spinifex texture--platy or skeletal crystals of olivine set in a glassy matrix. Chemically, komatiites...
- Research articles 2008-03-01
- Effects of chronic herbivory and historic land use on population structure of a forest perennial, Trillium catesbaei
- Abstract Question: How have long-term herbivory and past land use impacted the population structure of Trillium catesbaei, a long-lived rhizomatous herb? Location: Western Great Smoky Mountains National Park, Tennessee, USA. Methods: We examined T. catesbaei populations at three sites: (1) Cades Cove CC, an area of intensive...
- Research articles 2007-12-01
- Quercetin and Isorhamnetin Prevent Endothelial Dysfunction, Superoxide Production, and Overexpression of p47^sup phox^ Induced by Angiotensin II in Rat Aorta1
- AbstractThe dietary flavonoid quercetin reduces blood pressure and improves endothelial function in several rat models of hypertension. We analyzed the effects of quercetin and its methylated metabolite isorhamnetin on the aortic endothelial dysfunction induced by incubation with angiotensin II AngII in vitro for 6 h. AngII diminished the relaxant responses...
- Research articles 2007-04-01
- Architecture of traces and ascriptions: interpreting the vanished Great Palace of the Byzantine Emperors in Constantinople
- Beneath history, memory and oblivion. Beneath memory and oblivion: life. But the writing of life is another history. Incompleteness. --Paul Ricoeur (1) This paper was prompted by the 2000 proposal to develop the site of the...
- Research articles 2006-06-01
- Sieve-element plastids and evolution of monocotyledons, with emphasis on melanthiaceae sensu lato and Aristolochiaceae-Asaroideae, a putative dicotyledon sister group
- II. Introduction The origin and evolution of monocotyledons has been a subject to which systematists have given increased attention at least since Engler's 1892 treatise. Although Engler's classification and family concepts partly survived through the next century (e.g., Cronquist, 1981, 1988), the position of monocotyledons preceding dicotyledons was early...
- Research articles 2002-10-01
- Dietary fish oil suppresses experimental immunoglobulin A nephropathy in mice
- Dietary Fish Oil Suppresses Experimental Immunoglobulin A Nephropathy in Mice1 ABSTRACT Dietary fish oil FO supplementation reportedly retards the progression of renal disease in patients with immunoglobulin IgA nephropathy IgAN, the most common glomerulonephritis worldwide. Using an experimental mouse model in which early immunopathological hallmarks of IgAN are induced by...
- Research articles 2002-02-01
- Glutamine in animal science and production
- ABSTRACT With its many proposed metabolic roles, glutamine would seem to have major potential in normal animal production systems as well as during situations involving adverse challenges. In practice, however, responses to glutamine supplementation have been inconsistent. Thus, during lactation and growth studies in ruminants, both positive and null effects...
- Research articles 2001-09-01
- Stathmin expression in the Placenta and Embryonic Brain
- ABSTRACT. Stathmin is a member of a family of proteins believed to play important roles in neural development. In the current study, expression of stathmin forms in rat brain was examined from day 15 of gestation through the neonatal period and into adulthood. Placental stathmin also was analyzed. Unphosphorylated and...
- Research articles 2001-01-01
- Keratinocyte growth factor enhances glutathione redox state in rat intestinal mucosa during nutritional repletion
- Keratinocyte Growth Factor Enhances Glutathione Redox State in Rat Intestinal Mucosa during Nutritional Repletion1,2 ABSTRACT Malnutrition decreases tissue levels of glutathione GSH, a major endogenous antioxidant that detoxifies reactive oxygen species and promotes cell growth. This study determined the effects of the gut trophic peptide keratinocyte growth factor KGF on...
- Research articles 1999-07-01
- Wetland flora of the Grand Calumet River in Northwest Indiana: potential impacts of sediment removal and recommendations for restoration
- ABSTRACT Northwestern Indiana supports unusually diverse floras. However, rapid industrialization and urbanization since the late 19th Century have changed much of the natural character of the wetlands along Grand Calumet River. Of more than 1400 species that occurred historically in the northwestern Indiana, 19 species were identified as extirpated...
- Research articles 1999-01-01
- Experiments that changed nutritional thinking
- Symposium: Experiments That Changed Nutritional Thinking Experiments That Changed Nutritional Thinking1 Kenneth J. Carpenter,2 Alfred E. Harper* and Robert E. Olson ^ Department of Nutritional Sciences, University of California, Berkeley, CA; *University of Wisconsin, Madi son, WI; and ^ University of South Florida, Tampa, FL The...
- Research articles 1997-05-01
- Inhibiting delta9-desaturase activity impairs triacylglycerol secretion in cultured chicken hepatocytes
- Inhibiting Delta 9-Desaturase Activity Impair Triacylglycerol Secretion in Cultured Chicken Hepatocytes1 Philippe Legrand,2 Daniel Catheline, Marie-Claire Fichot and Philippe Lemarchal Laboratoire de Biochimie, Ecole Nationale Superieure Agronomique, 35000 Rennes, France ABSTRACT The relationship between endogenous oleic acid produced by hepatic Delta 9-desaturase and the secretion of VLDL-triglycerides was investigated in...
- Research articles 1997-02-01
- Bioavailability for humans of deuterium-labeled monoglutamyl and polyglutamyl folates is affected by selected foods
- Dietary folate exists mainly as pteroylpolyglutamates PteGlu sub n 5 which require deconjugation to pteroylmonoglutamates (PteGlu sub 1 ) by a Zn-dependent petroylpolyglutamate hydrolase PPH, associated with the jejunal brush border membrane, prior to intestinal absorption. Although brush border PPH activity appears to exceed absorptive capacity as measured in vitro...
- Research articles 1996-12-01
Additional Resources
- BNP Paribas hires FIG bankers.
- Byline: Janine Brewis BNP Paribas has hired two bankers to its financial institutions group FIG in London.Colin Weston and Natacha Merel will both join the FIG investment banking team, reporting to Calvin Redlick, head of FIG Northern Europe.Weston joins the bank from ABN Amro,...
- Research articles 2002-06-20
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