Results 71 to 80 of about 998 (180)

Habitat suitability of biocrust communities in a cold desert ecosystem

Ecology and Evolution, Volume 14, Issue 7, July 2024.
Biocrusts are dominant primary producer communities inhabiting the McMurdo Dry Valleys of Antarctica. We found that gravimetric water content, electrical conductivity, and snow frequency are the top predictors of biocrust presence and biomass. We predict that biocrusts are present in 2.7 × 105 m2 and contain 11–72 Mg of aboveground carbon in the Lake ...
Sarah N. Power, Valerie A. Thomas, Mark R. Salvatore, John E. Barrett   +3 more
wiley   +1 more source

Bioaggregate of photo-fermentative bacteria for enhancing continuous hydrogen production in a sequencing batch photobioreactor [PDF]

Scientific Reports, 2015
AbstractHydrogen recovery through solar-driven biomass conversion by photo-fermentative bacteria (PFB) has been regarded as a promising way for sustainable energy production. However, a considerable fraction of organic substrate was consumed for the growth of PFB as biocatalysts, furthermore, these PFB were continuously washed out from the ...
Xie, Guo-Jun, Liu, Bing-Feng, Wang, Rui-Qing, Ding, Jie, Ren, Hong-Yu, Zhou, Xu, Ren, Nan-Qi   +6 more
openaire   +3 more sources

Unique architecture of microbial snottites from a methane driven biofilm revealed by confocal microscopy

Microscopy Research and Technique, Volume 87, Issue 2, Page 205-213, February 2024.
Confocal microscopy of gelatinous snottites (biofilms) revealed a highly complex structure not seen before with an extracellular matrix of different shape and density. The matrix was examined by employing 78 fluorescently‐labeled lectins suggesting α‐Fuc, β‐Gal, β‐GlcNAc, and α‐Man as major glycoconjugates.
Thomas R. Neu, Ute Kuhlicke, Clemens Karwautz, Tillmann Lüders   +3 more
wiley   +1 more source

Effect of exposed surface area, volume and environmental pH on the calcium ion release of three commercially available tricalcium silicate based dental cements [PDF]

, 2018
Tricalcium silicate cements (TSC) are used in dental traumatology and endodontics for their bioactivity which is mostly attributed to formation of calcium hydroxide during TSC hydration and its subsequent release of calcium and hydroxide ions. The aim of
Martens, Luc, Rajasekharan, Sivaprakash, Verbeeck, Ronald, Vercruysse, Chris   +3 more
core   +3 more sources

Comparison of In Vitro Antimicrobial Activities of Bioaggregate and Mineral Trioxide Aggregate

Mikrobiyoloji Bulteni, 2013
Treatment outcome of endodontic perforations depends on successful elimination of the associated microorganisms and infected tissues as well as the effective seal of the root-end or perforation site to prevent future contamination. Ideally, perforation repair material has to be bacteriostatic or bactericidal in order to prevent bacterial contamination ...
Esma Asuman, Cavdar Tetik, Meltem, Dartar Öztan, Mehmet, Kıyan   +2 more
openaire   +2 more sources

Histologic Evaluation of Furcation Perforation Treated with Mineral Trioxide Aggregate and Bioaggregate

Asian Journal of Animal Sciences, 2015
The aim of this work was to evaluate the healing of furcation perforation following treatment with Mineral Trioxide Aggregate (MTA) and BioAggregate by histologic examination. The present study was carried out on a total of 72 premolar teeth from 6 adult mongrel dogs. Under general anesthesia, furcation perforation was carried out by using a round bur #
Ehab E. Hassanien, Ashraf M. Abu-Sei, Ahmed A. Hashem, Salah S. Khanbash   +3 more
openaire   +1 more source

Evaluation of cytotoxicity and gelatinases activity in 3T3 fibroblast cell by root repair materials

Biotechnology & Biotechnological Equipment, 2016
The aim of this study was to investigate the effects of calcium silicate-based products on cytotoxicity in the 3T3 fibroblast and gelatinolytic activity of matrix metalloproteinases (MMPs).
Varol Basak, Tuna Elif Bahar, Karsli Emine, Kasimoglu Yelda, Koruyucu Mine, Seymen Figen, Nurten Rustem   +6 more
doaj   +1 more source

Kök ucu dolgu materyallerinin pH’sının karşılaştırmalı değerlendirilmesi

European Annals of Dental Sciences, 2012
Amaç: Bu çalışmanın amacı; in-vitro olarak periapikal ortam taklit edilerek, BioAggregate, Mineral Trioksit Aggregate MTA ve MTAAngelus’ın pH’sının karşılaştırmalı değerlendirilmesidir.
Nuray Tüloğlu, Tunç Emine Şen, Şule Bayrak, Abdurrahman Aksoy, Enes Atmaca   +4 more
doaj  

Canyon effect and seasonal variability of deep-sea organisms in the NW Mediterranean: synchronous, year-long captures of "swimmers" from nearbottom sediment traps in a submarine canyon and its adjacent open slope [PDF]

, 2017
Numerous organisms, including both passive sinkers and active migrators, are captured in sediment traps together with sediments. By capturing these “swimmers”, the traps become an extraordinarily tool to obtain relevant information on the biodiversity ...
Bahamon, Nixon, Flexas, María del Mar, Gili, Josep Maria, Martin, Daniel, Romano, Chiara, Román, Sara, Segura, Marta, Sánchez-Vidal, Anna   +7 more
core   +1 more source

Fracture resistance of roots with simulated internal resorption defects and obturated using different hybrid techniques

Journal of Dental Sciences, 2017
Background/purpose: Teeth with internal resorption are susceptible to fracture because of the remaining thin dentinal walls. The aim of this study was to investigate the fracture resistance of roots with simulated internal resorption cavities and ...
Özgür İlke Ulusoy, Yelda Nayır Paltun   +1 more
doaj   +1 more source