Results 61 to 70 of about 13,754 (164)

A Crazy Idea: Ibn Sīnā on Hylomorphism, the Elements, Mixture and Evolutionary Processes

open access: yesTheoria, EarlyView.
ABSTRACT Ibn Sīnā (c. 973‐1037), the Avicenna of Latin fame, developed a unique theory of the elements and their status in mixtures that severely challenged the views of earlier natural philosophers and in its turn was severely challenged by later Latin Schoolmen in the West.
Jon McGinnis
wiley   +1 more source

Integrated Phytochemical Characterisation, Pharmacological Evaluation and Computational Investigation of Acampe papillosa Stem Extract

open access: yesAnalytical Science Advances, Volume 7, Issue 2, December 2026.
The pharmacological potential of the methanolic stem extract of Acampe papillosa is evaluated using in vivo and in silico approaches. The extract demonstrates significant anxiolytic, sedative, anti‐inflammatory, and antipyretic activities in experimental models, while molecular docking supports the observed biological effects through favorable ...
Qurratul Ain Sadia   +10 more
wiley   +1 more source

Elements of Boethian Ontology

open access: yesNoctua, 2018
In the commentaries on Porphyry Boethius on the one hand explains the properties of predication relation at abstract level, from another hand he supplies some ontological options about what can instantiate the terms of the relation, at the end he seems ...
Roberto Pinzani
doaj   +1 more source

The Material Basis of 18th‐Century Meissen Porcelain

open access: yesArchaeometry, Volume 68, Issue 5, Page 908-918, October 2026.
ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

open access: yesGeological Journal, Volume 61, Issue 9, Page 2940-2957, September 2026.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Porphyry and Epithermal Au-Cu Systems of the Southern Caucasus and Northern Iran

open access: yesBulletin of the Mineral Research and Exploration
This article presents tangible geological evidence for coexistence of porphyry copper and epithermal gold systems within single polygenic deposits and provides a paleothermophysical model for their origins.
Alexander G. Tvalchrelidze
doaj   +1 more source

Evolution of ore fluids in the Donggou giant porphyry Mo system, East Qinling, China, a new type of porphyry Mo deposit: Evidence from fluid inclusion and H-O isotope systematics

open access: yes, 2015
The Donggou Mo deposit in the eastern Qinling area, China, is a giant porphyry system discovered based on a targeting concept by using the tectonic model for collisional orogeny, metallogeny and fluid flow (CMF model).
Li, Nuo   +3 more
core   +1 more source

The Distinction Between Sn‐Mineralized and Sn‐Barren Granites in Sn Isotopes

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Tin mineralization is commonly associated with highly evolved granites. However, not all highly evolved granitic rocks are mineralized with Sn. Comparative studies of Sn‐fertile and Sn‐barren granites can deepen our understanding of the key processes that lead to Sn enrichment in magmatic‐hydrothermal systems.
Cheng Xu   +5 more
wiley   +1 more source

Homonymy; Aristotelian Definition and the Interpretations of Porphyry and Avicenna [PDF]

open access: yesحکمت سینوی
Aristotle, at the beginning of the Categories, provides a brief definition of homonym and synonym. Aristotelian and Platonic philosophers have engaged in interpreting, criticizing, and extending these Aristotelian definitions.
vahid khademzadeh
doaj   +1 more source

Porous and Permeable Crystalline Basement: Evidence for Large‐Scale Hydraulic Connectivity at Kivetty, Finland

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Porosity and permeability in crystalline shield basement are commonly assumed to be low, yet some fault zones sustain fluid circulation over kilometer scales. Here we quantify multiscale fault‐zone connectivity at Kivetty, central Finland, by integrating legacy deep‐borehole data, including packer tests, downhole logs, and a long‐term multi ...
Daniel Carbajal‐Martínez   +8 more
wiley   +1 more source

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