Results 31 to 40 of about 529,516 (402)

The silicate absorption profile in the ISM towards the heavily obscured nucleus of NGC 4418 [PDF]

open access: yes, 2015
The 9.7-micron silicate absorption profile in the interstellar medium provides important information on the physical and chemical composition of interstellar dust grains.
Alonso-Herrero, A.   +2 more
core   +2 more sources

The distribution of silicate strength in Spitzer spectra of AGNs and ULIRGs [PDF]

open access: yes, 2006
A sample of 196 AGNs and ULIRGs observed by the Infrared Spectrograph (IRS) on Spitzer is analyzed to study the distribution of the strength of the 9.7 micron silicate feature.
Antonucci R.   +11 more
core   +3 more sources

Akumulasi Biomasa Fitoplankton yang Diukur sebagai Klorofil-a di Perairan Teluk Doreri, Provinsi Papua Barat

open access: yesJurnal Kelautan Tropis, 2020
The accumulation of phytoplankton biomass measured as chlorophyll-a is highly depends on the availability of ammonia and silicate in the waters. The purpuses of the study were examining the concentration of chlorophyll-a and its relation with ammonia and
Alianto Alianto   +3 more
doaj   +1 more source

Optimizing Broadband Near-Infrared Emission in Bi/Sn-Doped Aluminosilicate Glass by Modulating Glass Composition

open access: yesMicromachines, 2022
The Bi/Sn-doped aluminosilicate glass samples were prepared using a melting–quenching method and their near-infrared (NIR) emission properties were studied.
Song Xiang   +4 more
doaj   +1 more source

Calcium silicate-based root canal sealers: a literature review

open access: yesRestorative Dentistry & Endodontics, 2020
Epoxy resin-based sealers are currently widely used, and several studies have considered AH Plus to be the gold-standard sealer. However, it still has limitations, including possible mutagenicity, cytotoxicity, inflammatory response, and hydrophobicity ...
M. Lim   +4 more
semanticscholar   +1 more source

Biostimulant Activity of Silicate Compounds and Antagonistic Bacteria on Physiological Growth Enhancement and Resistance of Banana to Fusarium Wilt Disease

open access: yesPlants, 2023
Biostimulants such as silicate (SiO32−) compounds and antagonistic bacteria can alter soil microbial communities and enhance plant resistance to the pathogens and Fusarium oxysporum f. sp.
Md Aiman Takrim Zakaria   +5 more
doaj   +1 more source

Surgical management of an accessory canal in a maxillary premolar: a case report [PDF]

open access: yesRestorative Dentistry & Endodontics, 2019
We report the surgical endodontic treatment of a maxillary first premolar with a lateral lesion that originated from an accessory canal. Although lesions originating from accessory canals frequently heal with simple conventional endodontic therapy, some ...
Hee-Jin Kim   +3 more
doaj   +1 more source

Neutron diffraction and Raman studies of the incorporation of sulfate in silicate glasses [PDF]

open access: yes, 2020
The oxidation state, coordination and local environment of sulphur in alkali silicate (R2O-SiO2; R= Na, Li) and alkali-alkaline earth silicate (Na2O-MO-SiO2; M= Ca, Ba) glasses have been investigated using neutron diffraction and Raman spectroscopy ...
Barney, Emma   +3 more
core   +2 more sources

Enhanced silicate weathering is not limited by silicic acid saturation [PDF]

open access: yesProceedings of the National Academy of Sciences, 2011
Enhanced weathering of olivine as a means of sequestering carbon is investigated by Kohler et al. (1). Specifically, the study discusses the potential distribution of fine olivine powder, obtained from dunite mines, in the humid tropic regions of the Amazon and Congo River catchments. Olivine (forsterite) dissolution (Eq.
Schuiling, R.D.   +2 more
openaire   +4 more sources

Iron, silicate, and light co-limitation of three Southern Ocean diatom species [PDF]

open access: yes, 2008
The effect of combined iron, silicate, and light co-limitation was investigated in the three diatom species Actinocyclus sp. Ehrenberg, Chaetoceros dichaeta Ehrenberg, and Chaetoceros debilis Cleve, isolated from the Southern Ocean (SO).
A Abelmann   +50 more
core   +1 more source

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