Results 31 to 40 of about 2,787,968 (277)

Vitamin A equivalency of ß-carotene in healthy adults: limitation of the extrinsic dual-isotope dilution technique to measure matrix effect [PDF]

, 2009
Data on the vitamin A equivalency of ß-carotene in food are inconsistent. We quantified the vitamin A equivalency (¿g) of ß-carotene in two diets using the dual-isotope dilution technique and the oral¿faecal balance technique.
Lieshout, M. van, Naber, T.H.J., Siebelink, E., Breemen, R.B., van, Versloot, P., Bouwman, C.A., Russel, F.G.M., van Breemen, R.B., Zhu, D., Hulshof, P.J., Naber, A.H.J., Lieshout, M., van, West, C.E., Hulshof, P.J.M., Loo-Bouwman, C.A. Van, van Lieshout, M., Schaafsma, G., Breemen, R.B. van   +17 more
core   +2 more sources

Hookworm infection among school age children in Kintampo north municipality, Ghana: nutritional risk factors and response to albendazole treatment. [PDF]

, 2013
Children (n = 812) 6-11 years of age attending 16 schools in the Kintampo North Municipality of Ghana were screened for participation in a study on hookworm infection, nutrition, and response to albendazole.
Davey, Dylan, Berg, Elyssa, Newton, Samuel, Wilson, Michael, Terryah, Shawn, Harrison, Lisa M, Quagraine, Josephine, Cappello, Michael, Humphries, Debbie, Simms, Benjamin T, Otchere, Joseph, Boakye, Daniel   +11 more
core   +1 more source

Stable isotope values in modern bryozoan carbonate from New Zealand and implications for paleoenvironmental interpretation [PDF]

, 2004
Bryozoan carbonate contains useful geochemical evidence of temperate shelf paleoenvironments. Stable isotope values were determined for 103 modern marine bryozoan skeletons representing 30 species from New Zealand. δ18O values range from -1.4 to 2.8 VPDB,
Nelson, Campbell S., Campbell S. Nelson, Marcus M. Key, Smith, Abigail M., Key, Marcus M., Patterson, William P., Abigail M. Smith, William P. Patterson   +7 more
core   +1 more source

A forensic approach to understanding habitat use from stable isotope analysis of (avian) claw material [PDF]

, 2003
1. The potential of using stable isotope signatures of avian claws in order to infer diet and habitat use was investigated. 2. Highly significant relationships observed between stable carbon and nitrogen isotope ratios (¹³C, &
Bearhop, S., Furness, R. W., Hilton, G.H., Furness, RW, Bearhop, S, Hilton, GM, Votier, S. C.; id_orcid, Waldron, S, Votier, SC, Furness, R.W., Waldron, S., Hilton, G. M.   +11 more
core   +1 more source

The Use of Stable and Radioactive Sterol Tracers as a Tool to Investigate Cholesterol Degradation to Bile Acids in Humans in Vivo

Molecules, 2012
Alterations of cholesterol homeostasis represent important risk factors for atherosclerosis and cardiovascular disease. Different clinical-experimental approaches have been devised to study the metabolism of cholesterol and particularly the synthesis of ...
Marina Del Puppo, Marco Bertolotti, Andrea Crosignani   +2 more
doaj   +1 more source

Bias of ostracod stable isotope data caused by drying of sieve residues from water [PDF]

, 2007
Stable isotope analysis of ostracod shells is used routinely for palaeoenvironmental studies of ostracod-bearing records. Sample treatment usually involves the disaggregation of sediments and sieving; before the sieving residues were washed with water ...
Börner, Anko, Mischke, Steffen, Zhang, Chengjun   +2 more
core   +1 more source

Detection and Isolation of Emetic Bacillus cereus Toxin Cereulide by Reversed Phase Chromatography

Toxins, 2021
The emetic toxin cereulide is a 1.2 kDa dodecadepsipeptide produced by the food pathogen Bacillus cereus. As cereulide poses a serious health risk to humans, sensitive and specific detection, as well as toxin purification and quantification, methods are ...
Eva Maria Kalbhenn, Tobias Bauer, Timo D. Stark, Mandy Knüpfer, Gregor Grass, Monika Ehling-Schulz   +5 more
doaj   +1 more source

Stable isotope analysis provides new information on winter habitat use of declining avian migrants that is relevant to their conservation [PDF]

, 2012
Winter habitat use and the magnitude of migratory connectivity are important parameters when assessing drivers of the marked declines in avian migrants. Such information is unavailable for most species.
Newton, J., Shai Markman, Markman Shai, Newton Jason, John W Mallord, Karl L Evans, Mallord, J.W., Markman, S., Evans Karl L., Evans, K.L., Mallord John W., Jason Newton   +11 more
core   +2 more sources

Folate vitamers in the Australian green plum: Through growth and ripening and across locations

Frontiers in Nutrition, 2022
The green plum is a native fruit of Australia that grows on the tree Buchanania obovata. This study aimed to confirm the high level of folate in green plums by analyzing a large number of ripe samples from multiple locations and to understand how folate ...
Selina Fyfe, Selina Fyfe, Hung Hong, Hung Hong, Horst Joachim Schirra, Horst Joachim Schirra, Horst Joachim Schirra, Heather E. Smyth, Yasmina Sultanbawa, Michael Rychlik, Michael Rychlik   +10 more
doaj   +1 more source

Quantification of methane oxidation in the rice rhizosphere using 13C-labelled methane [PDF]

, 1994
In this paper isotope ratio mass spectrometry is used to determine the methane (CH4) oxidation fraction in the rhizosphere of intact rice plant-soil systems.
Harren, F.J.M., van Bodegom, P.M., Bodegom, P.M. van,, Groot, T.T., Meijer, H.A.J., Groot, T.T, Groot, T.T.,, Meijer, H.A.J.,, Harren, F.J.M.,, Meijer, H.A.J.; id_orcid, Bodegom, P.M. Van, Tümpel, C.L.   +11 more
core   +3 more sources