Paul N. Williams, Adam H. Price, Andrea Raab, Sk Arafat Hossain et al.
Ingestion of drinking water is not the only elevated source of arsenic to the diet in the Bengal Delta. Even at background levels, the arsenic in rice contributes considerably to arsenic ingestion in subsistence rice diets. We set out to survey As speciation in different rice varieties from differe..
Andrew A. Meharg, Paul N. Williams, Eureka Adomako, Youssef Y. Lawgali et al.
An extensive data set of total arsenic analysis for 901 polished (white) grain samples, originating from 10 countries from 4 continents, was compiled. The samples represented the baseline (i.e., notspecifically collected from arsenic contaminated areas), and all were for market sale in major conurba...
Paul N. Williams, Md. Rafiqul Islam, Eureka Adomako, Andrea Raab et al.
Concern has been raised by Bangladeshi and international scientists about elevated levels of arsenic in Bengali food, particularly in rice grain. This is the first inclusive food market-basket survey from Bangladesh, which addresses the speciation and concentration of arsenic in rice, vegetables, pu...
Andrew A. Meharg, Gareth J. Norton, Claire Deacon, Paul N. Williams et al.
Cereal grains are the dominant source of cadmium in the human diet, with rice being to the fore. Here we explore the effect of geographic, genetic, and processing (milling) factors on rice grain cadmium and rice consumption rates that lead to dietary variance in cadmium intake. From a survey of 12 c...
Andrew A. Meharg, Enzo Lombi, Paul N. Williams, Kirk G. Scheckel et al.
Synchrotron-based X-ray fluorescence (S-XRF) was utilized to locate arsenic (As) in polished (white) and unpolished (brown) rice grains from the United States, China, and Bangladesh. In white rice As was generally dispersed throughout the grain, the bulk of which constitutes the endosperm. In brown ...
Guo‐Xin Sun, Paul N. Williams, Anne‐Marie Carey, Yong‐Guan Zhu et al.
Rice is more elevated in arsenic than all other grain crops tested to date, with whole grain (brown) rice having higher arsenic levels than polished (white). It is reported here that rice bran, both commercially purchased and specifically milled for this study, have levels of inorganic arsenic, a no...
Paul N. Williams, Hao Zhang, William Davison, Andrew A. Meharg et al.
Agroecological zones within Bangladesh with low levels of arsenic in groundwater and soils produce rice that is high in arsenic with respect to other producing regions of the globe. Little is known about arsenic cycling in these soils and the labile fractions relevant for plant uptake when flooded. ...
Axel Hochkirch, Michael J. Samways, Justin Gerlach, Monika Böhm et al.
Measuring progress toward international biodiversity targets requires robust information on the conservation status of species, which the International Union for Conservation of Nature (IUCN) Red List of Threatened Species provides. However, data and capacity are lacking for most hyperdiverse groups...
V. Spike Peterson
Click to increase image sizeClick to decrease image size Acknowledgments I am grateful to Georgina Waylen for her generosity in sharing prepublication work with me; and to Drucilla Barker, Jen Cohen, Deb Figart, Ellen Mutari, Julie Nelson, Paulette Olsen and Ara Wilson for conference discussions reg...
Dieter B. Wildenauer, Sibylle G. Schwab, Margot Albus, Joachim Hallmayer et al.
In response to reported schizophrenia linkage findings on chromosomes 3, 6 and 8, fourteen research groups genotyped 14 microsatellite markers in an unbiased, collaborative (New) sample of 403-567 informative pedigrees per marker, and in the Original sample which produced each finding (the Johns Hop...
Kamak Ebadi, Lukas Bernreiter, Harel Biggie, Gavin Catt et al.
This article surveys recent progress and discusses future opportunities for simultaneous localization and mapping (SLAM) in extreme underground environments. SLAM in subterranean environments, from tunnels, caves, and man-made underground structures on Earth, to lava tubes on Mars, is a key enabler ...
Sapan Kumar Sen, Utpal Chandra Barman, Md. Serajum Manir, Pritish Mondal et al.
Abstract In this article, pure and 2 M% dysprosium (Dy)-doped α -MoO3 nanobelts have been successfully synthesised by the autoclave assisted-hydrothermal method. The x-ray diffraction (XRD) patterns revealed that the nanobelts were crystalline in nature with an orthorhombic structure. The sharp and ...
José Williams Gomes de Oliveira Filho, Muhammad Torequl Islam, Eunüs S. Ali, Shaikh Jamal Uddin et al.
Citrinin (CIT) is a mycotoxin which causes contamination in the food and is associated with different toxic effects. A web search on CIT has been conducted covering the timespan since 1946. The accumulated data indicate that CIT is produced by several fungal strains belonging to Penicillium, Aspergi...
Paul N. Williams, Shofiqul Islam, Md. Rafiqul Islam, M. Jahiruddin et al.
A reconnaissance of 23 paddy fields, from three Bangladesh districts, encompassing a total of 230 soil and rice plant samples was conducted to identify the extent to which trace element characteristics in soils and irrigation waters are reflected by the harvested rice crop. Field sites were located ...
Andrew A. Meharg, C. M. Scrimgeour, Shahid Akhtar Hossain, Kenneth Fuller et al.
We present data showing that arsenic (As) was codeposited with organic carbon (OC) in Bengal Delta sediments as As and OC concentrations are highly (p < 0.001) positively correlated in core profiles collected from widely dispersed geographical sites with different sedimentary depositional histories....