Results 101 to 110 of about 26,864 (270)

Differential expression of the multiplicated silicon transporter genes at different stages of morphogenesis of daughter frustule of the freshwater diatom Ulnaria acus

open access: yesActa Biologica Sibirica
Diatoms are known for their unique ability to form species-specific silicon exoskeletons (shells) richly decorated with various ornaments, outgrowths, and holes.
Artem M. Marchenkov   +2 more
doaj   +1 more source

The Impact of Arginine Side Chains on the Mechanism of Polycondensation of Silicic Acid in Bioinspired Mineralization

open access: yesInorganics
The polycondensation of silica from soluble silicic acid is at the basis of several chemical processes. The usual industrial route requires harsh pH conditions and high concentrations of the precursor molecules, not to mention a thermal treatment for ...
Jose Lanuza, Enrico Ravera
doaj   +1 more source

Method for removal of surface-active impurities and calcium from conjugated bile salt preparations: comparison with silicic acid chromatography.

open access: yesJournal of Lipid Research, 1995
Some commercial preparations of common natural conjugated bile salts contain impurities (e.g., amines, lipids, and calcium) that are likely to affect their physicochemical properties. A method was developed for purifying commercial preparations of sodium
S. Del Vecchio   +7 more
doaj   +1 more source

Report of the 2004 Workshop on In Situ Iron Enrichment Experiments in the Eastern and Western Subarctic Pacific [PDF]

open access: yes, 2006
Foreword 1. BACKGROUND AND OBJECTIVES (pdf, 0.1 Mb) 2. 2004 WORKSHOP SUMMARY (pdf, < 0.1 Mb) 2.1. What have we learned from the enrichment experiments? 2.2 What are the outstanding questions? 2.3 Recommendations for SEEDS-II
Takeda, Shigenobu, Wong, C.S.
core  

No limit? The multiphasic uptake of silicic acid by benthic diatoms [PDF]

open access: bronze, 2009
Aude Leynaert   +4 more
openalex   +1 more source

Graphene Oxide and Stabilized Ortho-Silicic Acid as Modifiers of Amnion and Burn Affected Skin: A Comparative Study. [PDF]

open access: yesNanotechnol Sci Appl, 2021
Pielesz A   +9 more
europepmc   +1 more source

A summary of terminology used in tephra-related studies [PDF]

open access: yes, 2001
The word ‘tephra’, derived from a Greek word for ash, is a collective term for all the unconsolidated, primary pyroclastic products of a volcanic eruption.
Hunt, John B., Lowe, David J.
core   +1 more source

Volcanogenic Dark Matter and Mass Extinctions

open access: yes, 1996
The passage of the Earth through dense clumps of dark matter, the presence of which are predicted by certain cosmologies, would produce large quantities of heat in the interior of this planet through the capture and subsequent annihilation of dark matter
Afsar Abbas   +20 more
core   +1 more source

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