Results 41 to 50 of about 2,001 (220)

Mapping Chemical Elements and Iron Oxidation States in the Substantia Nigra of 6-Hydroxydopamine Lesioned Rats Using Correlative Immunohistochemistry With Proton and Synchrotron Micro-Analysis

Frontiers in Neuroscience, 2019
Brain metal homeostasis is altered in neurodegenerative diseases and the concentration, the localization and/or the chemical speciation of the elements can be modified compared to healthy individuals.
Asuncion Carmona, Asuncion Carmona, Stéphane Roudeau, Stéphane Roudeau, Laura Perrin, Laura Perrin, Carole Carcenac, Carole Carcenac, Delphine Vantelon, Marc Savasta, Marc Savasta, Marc Savasta, Richard Ortega, Richard Ortega   +13 more
doaj   +1 more source

Chemical History with a Nuclear Microprobe [PDF]

, 1983
A nuclear microprobe cannot give direct information on the chemical state of an element, but the spatial distribution of elements in a specimen is often determined by the chemical history of the sample.
Benjamin, T. M., Burnett, D. S., Hyde, P. J., Maggiore, C. J., Rogers, P. S. Z., Srinivasan, S., Tesmer, J., Woolum, D. S.   +7 more
core   +1 more source

Trace Element Analysis in Human Neuroblastoma Cell Spheroids Supplemented With ZnCl2 by Micro‐XRF

X-Ray Spectrometry, EarlyView.
ABSTRACT Neuroblastoma, the most common extracranial solid tumor of childhood, is responsible for ~10% of pediatric cancer deaths and has high potential for metastasis. Metals are extremely important in biological processes, and changes in their levels have been correlated with the development of cancerous growth.
J. E. P. Rosa, R. G. Leitão, G. C. Ferreira, C. Palmero, E. G. Oliveira‐Barros, M. A. Oliveira, C. G. L. Canellas, L. E. Nasciutti, D. F. Olivera, R. T. Lopes, M. J. Anjos   +10 more
wiley   +1 more source

Zinc allocation to and within Arabidopsis halleri seeds: Different strategies of metal homeostasis in accessions under divergent selection pressure

Plant-Environment Interactions, 2020
Vegetative tissues of metal(loid)‐hyperaccumulating plants are widely used to study plant metal homeostasis and adaptation to metalliferous soils, but little is known about these mechanisms in their seeds.
Alicja Babst‐Kostecka, Wojciech J. Przybyłowicz, Barbara Seget, Jolanta Mesjasz‐Przybyłowicz   +3 more
doaj   +1 more source

The Fiery Eyes of a Maenad: Origin Determination of Faceted Garnet Eye Inlays in a Roman Bronze Bust From Southern Tyrol

Archaeometry, EarlyView.
ABSTRACT In 1837, the Tyrolean State Museum Ferdinandeum in Innsbruck, Austria, purchased a Roman bronze statue of a maenad from the 2nd century ce with red garnets as facetted eye inlays found near Brixen, Southern Tyrol. These garnets were investigated using optical microscopy, a portable hand‐held and a stationary micro‐X‐ray fluorescence device, as
H. Albert Gilg, Simon Wagner, Anton Höck, Peter Tropper   +3 more
wiley   +1 more source

شناسایی ترکیب کانی‌های اورانیوم با استفاده از میکروسکوپ روبشی پروتون [PDF]

مجله علوم و فنون هسته‌ای, 2008
در این مقاله توزیع عنصر اورانیوم و عناصر دیگر موجود در کانی‌های اورانیوم‌دار در مقیاس میکرونی با استفاده از میکروسکوپ روبشی پروتون (Micro-PIXE) بررسی شده است.
داوود آقاعلی گل, محمدرضا کتابداری, پروین اولیائی, علی باقی زاده, فرح شکوهی, محمد لامعی رشتی, محمد فرمهینی فراهانی, محمود مرادی   +7 more
doaj  

Etiology, pathogenesis and treatment of peri‐implantitis: A European perspective

Periodontology 2000, EarlyView.
Abstract Peri‐implantitis is a plaque‐associated pathological condition occurring in tissues around dental implants. It is characterized by inflammation in the peri‐implant mucosa and progressive loss of supporting bone. Over the last 30 years, peri‐implantitis has become a major disease burden in dentistry.
Tord Berglundh, Andrea Mombelli, Frank Schwarz, Jan Derks   +3 more
wiley   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

X‐ray Fluorescence Microscopy Computed Tomography Reveals Internal Distribution of Selenium in Hyperaccumulator Plant Seeds

Ecological Research, Volume 41, Issue 3, May 2026.
Selenium hyperaccumulators are plants able to accumulate over 1000 mg/kg in their shoots while growing in their natural environments. The distribution of selenium in the seeds of the three key hyperaccumulating species was elucidated using X‐ray fluorescence microscopy computed tomography (XFM‐CT). ABSTRACT Selenium hyperaccumulators are plants able to
Mirko Salinitro, Michela Schiavon, Maggie‐Anne Harvey, Dennis Brueckner, Antony van der Ent   +4 more
wiley   +1 more source

Single-kernel ionomic profiles are highly heritable indicators of genetic and environmental influences on elemental accumulation in maize grain (Zea mays) [PDF]

, 2014
Peer reviewedPublisher ...
Armstrong, Paul, Baxter, Ivan R, Danku, John, Foley, Rachel, Hoekenga, Owen A, Lahner, Brett, Mickelbart, Michael V., Salt, David E, Ziegler, Gregory   +8 more
core   +3 more sources