Results 241 to 250 of about 573,324 (343)

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp   +4 more
wiley   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat   +3 more
wiley   +1 more source

Cyclometalated Au(III) Complexes With C*N^N, N^C*N, and C*N Ligands Through C–H Activation

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The complexes [Au(QPhPy)Cl][AuCl4], [Au(QPhCF3Py)Cl][AuCl4], [Au(QPhtBuPy)Cl][AuCl4], [Au(QPhPy)Cl]Cl, [Au(QPyPh)Cl2], [Au(QPyPhCF3)Cl2], [Au(QPyPhtBu)Cl2], [Au(bpyAn)Cl][AuCl4], and [Au(phenAn)Cl][AuCl4] (Q = 8‐quinolinyl, Ph = phenyl, An = anthracen‐9‐yl, Py = pyridyl, bpy = 2,2′′‐bipyridyl, phen = 1,10‐phenanthrolinyl) containing N*C^N, N*C, and NN ...
Pascal L. Jurzick   +5 more
wiley   +1 more source

Crystal Structures and Magnetic Properties of Coordination Polymer Complexes of Metal Ions With Kojic Acid Ligands

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
One‐dimensional coordination polymers of Cu(II) and Co(II) with kojic acid show distinct chain connectivities revealed by X ray crystallography and exhibit extremely weak magnetic interactions, as supported by magnetic measurements and molecular orbital calculations. The crystal structures and magnetic properties of coordination complexes [Cu(C6H5O4)2]
Wataru Fujita, Tomoko Yamaguchi
wiley   +1 more source

Synthesis and Characterization of Anhydrous Cerium(III) Acetate, [Ce(CH3COO)3], and its Interconversions to Hydrated Phases

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The crystal structure of anhydrous cerium(III) acetate [Ce(CH3COO)3] is reported. Additionally, the interconversions in the cerium(III) acetate hydrate system were studied by in situ and ex situ PXRD. We report the synthesis and crystal structure of anhydrous cerium(III) acetate [Ce(CH3COO)3] (1) as well as the interconversions to different hydrated ...
Niklas Ruser   +7 more
wiley   +1 more source

A Macrocyclic Bistriazene: Stabilization of the [Ni(Py)2]2+ Complex Cation with 6,15,23,32−Tetraethoxycarbonyl−bis(tolanetriazenediide) Ion as Ligand

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The arrangement of the complex molecules [Ni((4,4′−EtO(CO)2tolaneN3)2(py)2] and pyridine as crystallization solvate in the solid state based on nonbonded intermolecular interactions such CH⋅⋅⋅py, CH⋅⋅⋅O and CH⋅⋅⋅HC contacts is discussed in this work.
Aline Joana Rolina Wohlmuth Alves dos Santos   +6 more
wiley   +1 more source

Synchrotron X‐ray tomography and spectroscopy in numismatics: disclosing counterfeit practices in medieval silver coins

open access: yesJournal of Synchrotron Radiation, EarlyView.
Advanced synchrotron‐radiation‐based imaging and spectroscopic techniques were used to investigate the distribution and nature of mercury in numismatic artifacts, with a particular focus on its role in historical counterfeiting practices.This study explores the use of advanced synchrotron radiation (SR)‐based imaging and spectroscopic techniques to ...
Simona Raneri   +4 more
wiley   +1 more source

Automated particle analysis of D.B. Cooper's tie

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract Automated particle analysis (APA) using scanning electron microscopy (SEM) and energy‐dispersive x‐ray spectrometry (EDS) is a well‐known method in forensics, especially as it is applied to gunshot residue analysis. Here we describe the analysis of particles lifted from D.B. Cooper's tie, which was left on the hijacked plane in 1971.
Thomas G. Kaye, Kent L. Rhodes
wiley   +1 more source

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