Results 41 to 50 of about 39,957 (227)

Borax Promotes Fertility of Brassica napus Better Than Other Boron Species at Suboptimal Supply

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Continuous and sufficient boron (B) supply is essential for achieving maximum yield in Brassica napus. Increasing incidences of environmental water limitation are linked to reduced plant B availability and increased B deficiencies.
Jiline B. Tölle, Thomas D. Alcock, Gerd Patrick Bienert   +2 more
wiley   +1 more source

Modeling the iron oxides and oxyhydroxides for the prediction of environmentally sensitive phase transformations

, 2011
Iron oxides and oxyhydroxides are challenging to model computationally as competing phases may differ in formation energies by only several kJ/mol, they undergo magnetization transitions with temperature, their structures may contain partially occupied ...
A. F. Gualtieri, Amanda S. Barnard, C. Kittel, D. C. Golden, Haibo Guo, J. F. Nye, J. Majzlan, K. M. Rosso, R. M. Cornell, T. M. Henderson, T. Nagai   +10 more
core   +1 more source

Effects of Iron Minerals on the Compressive Strengths and Microstructural Properties of Metakaolin-Based Geopolymer Materials

Gels, 2022
The current study aims to investigate the influence of iron minerals on the amorphous phase content, compressive strengths and the microstructural properties of the geopolymer materials.
Dimace Lionel Vofo Ngnintedem, Marco Lampe, Hervé Kouamo Tchakouté, Claus Henning Rüscher   +3 more
doaj   +1 more source

Moderate Fire Temperatures Affect the Structure of Clayey Oxisol Aggregates

Land Degradation &Development, EarlyView.
ABSTRACT Wildfires have become increasingly frequent and intense worldwide, raising concerns about their impacts on soil systems. However, the thermal responses of clay‐rich Oxisols, dominated by Fe and Al oxides, remain poorly understood. In this study, samples from the 0 to 5 cm layer of six Oxisols were subjected to controlled heating at ...
Yasmmin Tadeu Costa, Paulo Angelo Fachin, Bruno Teixeira Ribeiro, Edivaldo Lopes Thomaz, Alberto Vasconcellos Inda Junior, Nilton Curi   +5 more
wiley   +1 more source

Mechanisms of Bacterial Extracellular Electron Exchange. [PDF]

, 2016
The biochemical mechanisms by which microbes interact with extracellular soluble metal ions and insoluble redox-active minerals have been the focus of intense research over the last three decades. The process presents two challenges to the microorganism;
Butt, Julea N., Clarke, Thomas A., Edwards, Marcus J., Gomez-Perez, Laura, Richardson, David J., White, Gaye F.   +5 more
core   +1 more source

Creation of a 3D Goethite–Spongin Composite Using an Extreme Biomimetics Approach

Biomimetics, 2023
The structural biopolymer spongin in the form of a 3D scaffold resembles in shape and size numerous species of industrially useful marine keratosan demosponges.
Anita Kubiak, Alona Voronkina, Martyna Pajewska-Szmyt, Martyna Kotula, Bartosz Leśniewski, Alexander Ereskovsky, Korbinian Heimler, Anika Rogoll, Carla Vogt, Parvaneh Rahimi, Sedigheh Falahi, Roberta Galli, Enrico Langer, Maik Förste, Alexandros Charitos, Yvonne Joseph, Hermann Ehrlich, Teofil Jesionowski   +17 more
doaj   +1 more source

Mapping the Residual Stress Distribution in Polycrystalline Quartz Tiger's Eye Using Raman Spectroscopy

Small Methods, EarlyView.
Residual stresses in Tiger’s Eye quartz have been mapped by combining Raman spectroscopy and electron back scatter diffraction. The study quantified stress distributions likely formed during cooling due to the anisotropy of thermal contraction. This non‐destructive methodology provides a reliable baseline for mapping stress in both natural polycrystals
Genevieve C. Kidman, Ashkan Salamat, Brian M. Patterson, Daniel E. Hooks, Pamela C. Burnley   +4 more
wiley   +1 more source

Inner-sphere complexation of cations at the rutile-water interface: A concise surface structural interpretation with the CD and MUSIC model [PDF]

, 2009
Acid–base reactivity and ion-interaction between mineral surfaces and aqueous solutions is most frequently investigated at the macroscopic scale as a function of pH.
Hiemstra, T., Machesky, M.L., Ridley, M.K., Riemsdijk, W.H., van   +3 more
core   +3 more sources

“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives

Archaeometry, EarlyView.
ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori, Ileana De Giuseppe, Fabrizio Frontalini, Luca Pellegrino, Richard W. Jordan, Pierfrancesco Callieri, Emad Matin, Alireza Askari Chaverdi, Hamid Fadaei, Valeria Mengacci, Fulvio Fantino   +10 more
wiley   +1 more source

A revised scheme for the reactivity of iron (oxyhydr)oxide minerals towards dissolved sulfide [PDF]

, 2004
The reaction between dissolved sulfide and synthetic iron (oxyhydr)oxide minerals was studied in artificial seawater and 0.1 M NaCl at pH 7.5 and 25°C. Electron transfer between surface-complexed sulfide and solid phase Fe(III) results in the oxidation ...
Bartlett, Berner, Biber, Bigham, Bondietti, Borggaard, Canfield, Canfield, Canfield, Canfield, Canfield, Carlson, Chambers, Chen, Cline, Cornell, Cornell, Crosby, Davis, Dos Santos Afonso, Fitzpatrick, Fredrickson, Fuller, Gagnon, Haese, Hering, Heron, Hurtgen, Jørgensen, Kostka, Krom, Krom, LaKind, Litter, Lovley, Lovley, Luther III, Luther III, Michael D. Krom, Millero, Morse, Morse, Morse, O’Brien, Peiffer, Postma, Poulton, Poulton, Poulton, Poulton, Pyzik, Raiswell, Raiswell, Rickard, Robert Raiswell, Roden, Rysgaard, Schwertmann, Schwertmann, Schwertmann, Schwertmann, Sidhu, Simon W. Poulton, Stolz, Stookey, Stucki, Stumm, Suter, Taylor, Thamdrup, Thamdrup, Torrent, Urban, Viollier, West, Yao, Zhang, Zinder   +77 more
core   +1 more source