Results 241 to 250 of about 200,505 (315)

Late Iron Age and Early Roman Brooches From the Lower Rhine Area: Provenance of the Metal Supply Traced Through Lead Isotopes

Archaeometry, EarlyView.
ABSTRACT Geochemical analysis of five brooch types from the Lower Rhine area dated to the last century bc and first century ad is used to constrain resource use, exchange and mobility. Lead isotope ratios demonstrate an Iberian provenance for copper in bronze Late Iron Age brooches.
A. A. T. Ruiter, B. J. H. van Os, J. B. V. Hermsen, G. R. Davies, S. W. Merkel   +4 more
wiley   +1 more source

Arsenate immobilisation and mimetite formation on Pb-modified zeolite under variable aqueous chemistry. [PDF]

Environ Geochem Health
Stępień E, Dunkel F, Manecki M, Bajda T.   +3 more
europepmc   +1 more source

Hidden in the Glaze: Cobalt Blue Decorations of Catalan Tin‐Glazed Ceramics From the 16th to 18th Centuries

Archaeometry, EarlyView.
ABSTRACT This study investigates technological evolution in 16th–18th century Catalan tin glazes and cobalt blue decorations. Analysis reveals three glaze strategies, highlighting shifts in tin oxide use and cobalt pigment composition. In the 16th century, tin oxide acted as an opacifier and cobalt pigments exhibit low arsenic content with CoO/NiO and ...
Lisa Bruzzone, Trinitat Pradell, Javier G. Iñañez, Judit Molera   +3 more
wiley   +1 more source

Copper bionanocomposite mitigates arsenic toxicity in Oreochromis niloticus. [PDF]

Discov Nano
Habotta OA, Rawan AF, Abdelmoneim D, Adly MS, Ateya A, Ibrahim I, Amer S, Azab RE, Habak S, Morsi R, Hetta HF, Ibrahim SF, Shukry M, El-Nemr A, Raia A, Abdeen A.   +15 more
europepmc   +1 more source

Compositional Analysis of Transatlantic‐Era Glass Beads From Peki, Ghana: Provenance, Chronology, and Local Transformation of European Imports in the Gold Coast

Archaeometry, EarlyView.
ABSTRACT This paper reports elemental analysis results of 51 glass beads from Peki, an inland transatlantic trade node in southeastern Ghana. Using laser ablation–inductively coupled plasma–mass spectrometry (LA‐ICP‐MS), 91 compositional measurements were obtained, identifying three principal glass types: high‐soda, high‐lead, and potash‐lime glasses ...
Benjamin Kofi Nutor, Laure Dussubieux
wiley   +1 more source

VSED Should Not Be a Pathway to MAiD (Though Both Are Ethically Permissible)

Bioethics, EarlyView.
ABSTRACT Recent changes in aid in dying laws have led some to argue for a pathway from Voluntarily Stopping Eating and Drinking (VSED) to Medical Aid in Dying (MAiD). Proponents point to the Sontag case as demonstrating the efficacy of the practice. This article first provides an overview of the development of the practice of VSED and MAiD and provides
D. B. Davison
wiley   +1 more source

Blood metal signatures and their association with Alzheimer's disease risk and cognitive decline in an Egyptian cohort. [PDF]

Commun Med (Lond)
Othman M, Khedr E, Fawi G, Heikal S, Mostafa SA, Ibrahim A, Qayaty A, Ali EM, Salama M.   +8 more
europepmc   +1 more source

Evaluation of Serum Pentraxin-3 and Heavy Metal Levels in Patients with Acute Coronary Syndrome. [PDF]

Toxics
Gokcen E, Guclu HE, Turksoy VA, Ozsoy M, Kusdogan M, Demir V, Albayrak L, Vural S, Acar MS.   +8 more
europepmc   +1 more source

Arsenite methyltransferase 3 is required for mitochondrial function and hepatic lipid metabolism

The FEBS Journal, EarlyView.
AS3MT is a protein that helps the body process arsenic, a naturally occurring toxin found in water and soil. We discovered it also helps cells make and use energy properly. Without AS3MT, cells' mitochondria do not work well, leading to fatty liver and reduced activity. Increasing AS3MT in liver cells restores energy and protects against arsenic damage,
Patrice Delaney, James Griffin, Nouf Khan, Balnur Ibrash, Matthew J. O'Connor, Tomas Venit, Elizabeth Mayela Ambrosio, Spiros A. Pergantis, Elke Ober, Piergiorgio Percipalle, Kirsten C. Sadler   +10 more
wiley   +1 more source

The arsenic-Alzheimer's disease link: Emerging evidence and unanswered questions. [PDF]

J Alzheimers Dis
Dimas-Harms LJ, Moser VA.
europepmc   +1 more source