Results 101 to 110 of about 197,145 (380)
ChemMedChem, Accepted Article.The cylcooxygenase isoforms COX‐1 and COX‐2 are involved in the production of prostaglandins in physiological and pathological processes. The overexpression of COX‐2 under inflammatory conditions as well as its role in cancer and neurodegenerative diseases necessitates the need to develop and improve non‐steroidal anti‐inflammatory drugs.
Lea Ueberham +8 more
wiley +1 more source
Changes in porosity, permeability and surface area during rock dissolution: effects of mineralogical heterogeneity [PDF]
arXiv, 2015 Effects of heterogeneity of mineral distribution and reaction rate on the rock dissolution process are investigated using a pore-scale reactive transport model based on the lattice Boltzmann method. Coupled fluid flow, species transport, chemical reaction and solid structure alternation due to dissolution are simulated. Effects of mineral distributions
arxiv
Intergranular diffusion rates from the analysis of garnet surfaces: implications for metamorphic equilibration [PDF]
, 2017 Novel approaches to garnet analysis have been used to assess rates of intergranular diffusion between different matrix phases and garnet porphyroblasts in a regionally metamorphosed staurolite-mica-schist from the Barrovian-type area in Scotland.
Chung, Peter +2 more
core +1 more source
ChemPlusChem, EarlyView.First analytical evidence and replication of yet undescribed substantial change in gilding technology in the early modern period ‐ the replacement of imported red clay (bole) with locally available bauxite. Proof of its source ‐ Croatian Minjera, according to a unique find of mineral diaspore.
David Hradil +3 more
wiley +1 more source
CARBONATES FROM THE VISHNEVOGORSKOE ZR-NB DEPOSIT (SOUTHERN URALS) [PDF]
Минералогия, 2015 Data on carbonates in alkaline rocks, pegmatites, and late veinlets of the Vishnevogorskoe deposit are summarized. Among 21 minerals studied, calcite is the major mineral; dolomite, ankerite, siderite, aragonite, bastnasite-(Ce), and strontianite are ...
V.I. Popova +5 more
doaj
Evaluation of mineralogy per geological layers by Approximate Bayesian Computation [PDF]
arXiv, 2019 We propose a new methodology to perform mineralogic inversion from wellbore logs based on a Bayesian linear regression model. Our method essentially relies on three steps. The first step makes use of Approximate Bayesian Computation (ABC) and selects from the Bayesian generator a set of candidates-volumes corresponding closely to the wellbore data ...
arxiv
Isheyevo Meteorite: Genetic link between CH and CB chondrites? [PDF]
, 2006 Based on the mineralogy, petrography, bulk chemical, oxygen, and nintrogen isotopic compositions and 40Ar-39Ar age, Isheyevo is genetically related to CH and CB carbonaceous chondrites and provides a link between these group of pristine ...
Brandstätter, F. +7 more
core
The importance of mineralogical knowledge in the sustainability of artisanal gold mining: a mid-south Peru case [PDF]
, 2019 Mineralogy and gold processing techniques from several mining areas of the Nazca-Ocoña gold belt, Mid-South Peru, were investigated to assess the efficiency of gold extraction methods in relation to their mineralogy.
Alfonso Abella, María Pura +7 more
core +2 more sources
On the Evolution of Dust Mineralogy, From Protoplanetary Disks to Planetary Systems [PDF]
, 2011 Mineralogical studies of silicate features emitted by dust grains in protoplanetary disks and Solar System bodies can shed light on the progress of planet formation. The significant fraction of crystalline material in comets, chondritic meteorites and interplanetary dust particles indicates a modification of the almost completely amorphous ISM dust ...
arxiv +1 more source