Results 41 to 50 of about 1,251,014 (199)

Analysis of molten particles from the Moto-Ujina Beach, Hiroshima

Progress in Earth and Planetary Science
Color-sorted spherical molten particles extracted from Moto-Ujina Beach sand were analyzed by inductively coupled plasma–mass spectrometry, thermal ionization mass spectrometry, micro-PIXE analysis to obtain the elemental concentrations, 235U/238U ...
Satoru Endo, Ryoga Akaji, Yuji Shibahara, Kunio Takahashi, Ichiro Nakamori, Tsuyoshi Kajimoto, Yutaka Yamada, Masakazu Oikawa, Takayuki Tomizuka, Hirohiko Ishikawa, Satoshi Fukutani, Koichi Takamiya, Yukihiko Satou, Takahisa Shobu, Aki Tominaga, Yasuhito Igarashi   +15 more
doaj   +1 more source

Methods to estimate marine functional connectivity: A primer

Ecological Applications, Volume 36, Issue 4, June 2026.
Abstract Organism movement is a key process in the transfer of individuals, genes, functional traits, matter, and energy among habitat patches, at sea and across the land–sea interface. The resulting fluxes, collectively termed marine functional connectivity (MFC), underpin planetary health and an array of ecosystem services.
Anna M. Sturrock, Susanne E. Tanner, Sophie Arnaud‐Haond, Jacopo Aguzzi, Francisco R. Barboza, Maria Beger, Andreu Blanco, Deirdre Brophy, Marta Carreton, Amber‐Robyn Childs, Federica Costantini, Oscar E. Gaggiotti, Bronwyn M. Gillanders, José M. González‐Irusta, Katell Guizien, Tamar Guy‐Haim, Stefanie Haase, Ewan Hunter, Jonne Kotta, Geneviève Lacroix, Rafet Ç. Öztürk, Angel Pérez‐Ruzafa, Patrick Reis‐Santos, Cynthia Riginos, Gil Rilov, Buki Rinkevich, Guiomar Rotllant, David H. Secor, Szymon Smoliński, Clive N. Trueman, Benjamin D. Walther, Audrey M. Darnaude   +31 more
wiley   +1 more source

XRF, PIXE and SR-XRF studies on prehistoric gold provenance

UISPP Journal, 2019
One of the most efficient methods to authenticate ancient gold artifacts and find their provenance is to identify trace elements – Sn, Sb, Te, PGA (especially Pt, Ir-Os, Pd), considered as “fingerprints” of a geological source, as ancient metallurgy ...
Bogdan Costantinescu, Daniela Cristea-Stan   +1 more
doaj   +1 more source

A Mineralogical Context for the Organic Matter in the Paris Meteorite Determined by A Multi-Technique Analysis

Life, 2019
This study is a multi-technique investigation of the Paris carbonaceous chondrite directly applied on two selected 500 × 500 µm² areas of a millimetric fragment, without any chemical extraction.
Manale Noun, Donia Baklouti, Rosario Brunetto, Ferenc Borondics, Thomas Calligaro, Zélia Dionnet, Louis Le Sergeant d’Hendecourt, Bilal Nsouli, Isabelle Ribaud, Mohamad Roumie, Serge Della-Negra   +10 more
doaj   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, Volume 36, Issue 38, 11 May 2026.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source

Caracterización de un vidrio rojo medieval procedente de las vidrieras del Monasterio de las Huelgas de Burgos

Boletín de la Sociedad Española de Cerámica y Vidrio, 2009
In the year 2007 the process of conservation-restoration of the windows of the apostles that close the windows of the Chapter Hall of Cloister of S. Fernando del Real Monasterio de Santa María la Real de las Huelgas de Burgos was completed the process. A
Gómez, B., Respaldiza, M. A., De Pablos, A., Ortega, I., Capel, F., Valle Fuentes, F. J., Alonso, Mª P.   +6 more
doaj  

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

Direct Dating and Physico-Chemical Analyses Cast Doubts on the Coexistence of Humans and Dwarf Hippos in Cyprus.

PLoS ONE, 2015
In the Mediterranean, the island dwarf megafaunas became extinct around the end of the Pleistocene, during a period of rapid and global climate change. In Cyprus, this coincided with the first human presence on the island, as attested by the rock shelter
Antoine Zazzo, Matthieu Lebon, Anita Quiles, Ina Reiche, Jean-Denis Vigne   +4 more
doaj   +1 more source

Global Model Estimates of Atmospheric Al, Ca, Fe, Si, and Ti From Dust and Non‐Dust Aerosols Informed by EMIT Surface Mineralogy and Evaluated Against Observations

Global Biogeochemical Cycles, Volume 40, Issue 5, May 2026.
Abstract Atmospheric deposition of micro‐nutrients like Fe has been shown to be important for ocean biogeochemistry. The largest source of atmospheric Fe and other elements (e.g., Ca, Al, Si, and Ti) is desert dust, although there are significant non‐dust sources in some regions (e.g., combustion, sea salts, volcanoes). However, past estimates of these
Natalie M. Mahowald, Longlei Li, María Gonçalves Ageitos, Ronald L. Miller, Carlos Pérez García‐Pando, Paul Ginoux, Vincenzo Obiso, Philip G. Brodrick, Roger N. Clark, Karine Desboeufs, Robert O. Green, Gregory S. Okin, David R. Thompson, Sagar Rathod, Esteban Gazel, Adrian Hornby, Emile Journet, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Alex R. Baker, Francisco Barraza, Silvia Becagli, Clifton S. Buck, Giulia Calzolai, Shankararaman Chellam, Ying Chen, Patrick Y. Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Johann P. Engelbrecht, Corinne Galy‐Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Jenny Hand, Roy M. Harrison, Barak Herut, Philip K. Hopke, Zsofia Kertesz, Katriina Kyllönen, Fabrice Lambert, Willam M. Landing, Remi Losno, Franco Lucarelli, Willy Maenhaut, Christopher Marsay, Hitoshi Matsui, Randall V. Martin, Yasser Morera‐Gómez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Geraldine Sarthou, Rachel Shelley, Ronald L. Siefert, Patricia Smichowski, Daniela Varrica   +61 more
wiley   +1 more source

Una revisión de los discos de Fortios

Trabajos de Prehistoria, 2017
Hemos empleado fluorescencia de rayos X por energía dispersiva (EDXRF), emisión de rayos X inducida por partículas (Micro-PIXE) y microscopía (análisis metalográfico), complementada con microscopia electrónica de barrido y espectroscopia de rayos X en ...
António M. Monge Soares, Pedro Valério, Rui J. C. Silva, Luis Cerqueira Alves, Maria de Fátima Araújo   +4 more
doaj   +1 more source