Results 91 to 100 of about 44,910 (309)

Is Composting a Route to Solubilize Low-Grade Phosphate Rocks and Improve MAP-Based Composts?

Revista Brasileira de Ciência do Solo, 2018
: In alkalinized and Ca-rich composts, solubilization of apatite from phosphate rocks (PRs) is not guaranteed; however, chelating agents and humified substances produced during composting may alter the soluble contents and P forms of monoammonium ...
Henrique José Guimarães Moreira Maluf, Carlos Alberto Silva, Everton Geraldo de Morais, Leonardo Henrique Duarte de Paula   +3 more
doaj   +1 more source

Apatite Fission-Track Thermochronology, Northern Range, Trinidad (and Paria Peninsula, Venezuela) Apatite Fission-Track Thermochronology, Northern Range, Trinidad (and Paria Peninsula, Venezuela) Abstract

, 2008
The Northern Range of Trinidad is an east-west trending mountainous exposure of metamorphic rocks located in the Caribbean-South American plate boundary zone.
Denison, Chris W
core  

Collated apatite trace element data (ppm) from the literature

, 2019
This database contains trace element compositional data for apatite from 23 published (cited) datasets on bedrock apatite trace element ...
Kenny, Gavin, Gavin Kenny (7830314), O'Sullivan, Gary J, Dónal Mulligan (7830317), Isadora A Henrichs (7281782), Gary J O'Sullivan (7281788), Henrichs, Isadora A, Mulligan, Dónal, Chew, David M, David M Chew (7281785)   +9 more
core   +1 more source

From Highlands to Henge: Refining the Provenance and Transport Pathways of Stonehenge's Altar Stone

Journal of Quaternary Science, EarlyView.
ABSTRACT The Altar Stone, the 6000 kg central sandstone megalith at Stonehenge in southern England, is suggested to have originated from the Orcadian Basin in northeast Scotland, some 700 km away. However, its source location within this large basin remains unresolved and its mode of transport uncertain.
Anthony J. I. Clarke, Remy L. J. Veness, Christopher L. Kirkland, Chris D. Clark, Niall Gandy, Andy Emery, Sarah L. Bradley, Jeremy C. Ely, Ignéczi Ádám   +8 more
wiley   +1 more source

Inhibition of Acid Phosphatase Enzyme Activity in the Presence of Noncrystalline Calcium Phosphate and Nanocrystalline Calcium Apatite: a Preliminary Study

, 2009
*Background* Our bones are remodelled repeatedly during life. A new and “healthy” bone tissue replaces the old one. Accordingly, the bone degrading cells, the osteoclasts, prefer old and fatigued bone.
Yassen Pekounov
core  

Constraints on the thermal and tectonic evolution of Greymouth coalfield

, 1999
The southern end of the Paparoa Range in Westland, South Island, New Zealand, comprises an asymmetrical, southward plunging, faulted (Brunner-Mt Davy) anticline, the eastern limb of which is common with the western limb of an asymmetrical (Grey Valley ...
Newman, Jane, Ian W. S. Whitehouse, Whitehouse, Ian W. S., Kamp, Peter J.J., Peter J. J. Kamp, Jane Newman, Ian W.S. Whitehouse   +6 more
core   +1 more source

Quantitative Susceptibility Mapping of Kidney Stones: An Ex Vivo MRI Phantom Study

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To visualize and characterize the five most common kidney stone types based on their magnetic susceptibilities in MRI using QSM. Methods Three water‐based agar phantoms were constructed, containing a total of 53 ex vivo kidney stones of varying types and sizes.
Lion H. Mücke, Frederik B. Laun, Ruben de Figueiredo Cardoso, Guillaume Flé, Jennifer Lorenz, Alexander Fichte, Michael Uder, Nadine Bayerl, Jannis Hanspach   +8 more
wiley   +1 more source

Upgrading Ethanol to Higher Alcohols via Biomass-Derived Ni/Bio-Apatite

, 2022
Acquiring value-added chemicals from renewable ethanol instead of fossil resources has special significance under the background of carbon neutrality.
Machen Xue (12206290), Machen Xue, Chungu Xia (1393381), Gangli Zhu, Gangli Zhu (11128038), Bolun Yang, Chungu Xia, Bolun Yang (1315767)   +7 more
core   +1 more source

Current Trends and Future Prospects of Integrating Electrospinning With 3D Printing Techniques for Mimicking Bone Extracellular Matrix Scaffolds

Journal of Polymer Science, Volume 63, Issue 6, Page 1481-1504, 15 March 2025.
ABSTRACT This article presents a review of the recent findings on the combination of electrospun nanofibers and three‐dimensional (3D)‐printed structures for extracellular matrix (ECM) scaffolds for bone tissue engineering. We explore the synergy between electrospinning (ES), which produces highly porous, fibrous structures from materials like collagen
Kardo Khalid Abdullah, Kolos Molnár
wiley   +1 more source

Specific action of collector from phosphoric acid alkyl esters class in flotation of apatite-nepheline ores

Записки Горного института
Increasing amount of apatite-nepheline ores with complex mineral composition involved in processing, growing content of the associated minerals in ore which are similar in their floatability to apatite lead to the necessity of using highly selective ...
Galina V. Mitrofanova, Elena V. Chernousenko, Alena A. Kompanchenko, Aleksandr I. Kalugin   +3 more
doaj