Results 41 to 50 of about 487,533 (193)

Development of Physics Applied to Medicine in the UK, 1945–90 [PDF]

, 2006
Annotated and edited transcript of a Witness Seminar held on 5 July 2005. Introduction by Dr Jeff Hughes.First published by the Wellcome Trust Centre for the History of Medicine at UCL, 2006.©The Trustee of the Wellcome Trust, London, 2006.All volumes ...
Christie, DA, Tansey, EM
core  

Evaluation of the Sorption Properties of Diatomite for Capture of Radioactive Barium, Cobalt, and Zinc

International Journal of Chemical Engineering, Volume 2026, Issue 1, 2026.
Sorption is a well‐known method for radionuclide removal, but the high cost of synthetic sorbents constrains its application. This study investigates the potential of locally sourced diatomite from Kariandusi, Kenya, as a cost‐effective sorbent for capturing barium (Ba), cobalt (Co) and zinc (Zn) from radioactive liquid waste.
Cleophas N. Taula, Geoffrey O. Okeng’o, Michael J. Mangala, Bonface G. Mukabane, Arnab Biswas   +4 more
wiley   +1 more source

Heavy Metal Contamination in Chocolates and Candies: Sources, Health Risks, and Analytical Insights

Journal of Chemistry, Volume 2026, Issue 1, 2026.
The presence of heavy metals in chocolates and candies poses growing public health concerns, particularly for children who are frequent consumers. This review consolidates evidence on the occurrence, sources, toxicological impacts, and analytical monitoring of metals, including Pb, Cd, Hg, As, Cr, Ni, and Al, in confectionery products.
Mahmood Ahmed, Maryam, Ali Abbas Aslam, Fatima Aftab, Ahmad Saeed, Mudassar Sanaullah, Muhammad Hassan, Riaz Hussain, Eisha Eiman, Masooma Irfan, Muhammad Yaseen, Muhammad Zaeem Mehdi, Sohini Basu Roy   +12 more
wiley   +1 more source

Overlooked seasonal groundwater nutrient fluxes rival anthropogenic point sources across a variable land‐use tidal river

Limnology and Oceanography, Volume 70, Issue 12, Page 3815-3831, December 2025.
Abstract Understanding groundwater–surface water connectivity in tidal freshwater zones is essential for managing ecosystems within the riverine–estuarine continuum. Groundwater discharge is a key source of dissolved nutrient loads that can lead to eutrophication, deoxygenation, and other ecosystem imbalances in coastal environments.
James A. Padilla‐Montalvo, Douglas R. Tait, Michael J. Reading, Benjamin T. Stewart, Angus Ferguson, Iremar Fernandez‐Vazquez, James Z. Sippo, Shivanesh Rao, Mitch Call, Christopher Ralph, Josh Guyat, Jenny Rogers, Merran Griffith, Damien T. Maher   +13 more
wiley   +1 more source

From prophylaxis to atomic cocktail : circulation of radioiodine [PDF]

, 2009
This paper is a history of iodine. To trace the trajectory of this element, goiter is used as a guideline for the articulation of a historical account, as a representation of thyroid disorders and of the spaces of knowledge and practices related to ...
Santesmases, María Jesús
core   +3 more sources

A Comprehensive Study of Quantum Dots: Ranging From Synthesis to Applications in Electrochemical Biosensors in the Detection of Biomolecules, Gastrointestinal Diseases, and Electrophysiology

Nano Select, Volume 6, Issue 12, December 2025.
Quantum dots (QDs) typically refer to extremely small semiconductor particles, often no larger than 10 nm. The development of efficient biosensors for the sensitive and selective detection of biomolecules is essential for fundamental research in analytical chemistry, biomedicine, clinical diagnosis, and electrophysiology.
Parisa Navid, Hamid Reza Akbari‐Hasanjani, Reza Akbari‐Hasanjani   +2 more
wiley   +1 more source

Lower and slower: Quantifying phosphorus leaching from struvite relative to monoammonium phosphate by 33P radioisotopic labeling

Geoderma
Struvite (NH4MgPO4·6H2O) is a slow-release phosphorus (P) fertilizer hypothesized to reduce nutrient leaching losses relative to highly water-soluble counterparts such as monoammonium phosphate (MAP). We assessed the leaching fate of P from struvite relative to MAP using soil column experiments for two soils representative of the United States Maize ...
Patricia Leon, Neha Chatterjee, Chongyang Li, Andrew J. Margenot   +3 more
openaire   +2 more sources

Observations Concerning Rhizobium tropici Bacteroid Phosphorus Stress Response During Symbiosis With Phaseolus vulgaris

Environmental Microbiology Reports, Volume 17, Issue 6, December 2025.
14CO2 and 32PO4 labelling of bean was used with Rhizobium tropici mutants. An alkaline phosphatase mutant was not affected for bacteroid P acquisition, though bacteroid and nodule 14C‐carbon uptake was altered. The high‐affinity P transporter mutant was defective in nodule P acquisition and symbiotic performance. Plant image by Brgfx/Freepik.
Lina M. Botero, Thamir Al‐Niemi, Timothy R. McDermott   +2 more
wiley   +1 more source

Impact of pyrolysis temperature on phosphorus plant availability in biochar—A pot experiment using 33P dilution

Journal of Environmental Quality, Volume 54, Issue 6, Page 1944-1956, November/December 2025.
Abstract Separation and pyrolysis of the solid fractions of biogas digestate and animal slurry offer potential solutions to environmental and logistical challenges associated with direct slurry application as fertilizer. However, thermochemical transformations during pyrolysis typically reduce P availability.
Saadatullah Malghani, Sander Bruun, Muhammad Ashfaq Wahid, Dorette Sophie Müller‐Stöver   +3 more
wiley   +1 more source

Petrography of phosphates in CI and CY carbonaceous chondrites

Meteoritics &Planetary Science, Volume 60, Issue 11, Page 2594-2622, November 2025.
Abstract Phosphate minerals are significant carriers of volatiles (e.g., OH) and halogens in chondritic material; however, their origin in most groups of carbonaceous chondrites remains poorly characterized. We have determined the abundance, morphology, texture, and composition of phosphate grains in aqueously altered CI chondrites and in hydrated and ...
C. S. Harrison, A. J. King, R. H. Jones, L. Piani   +3 more
wiley   +1 more source