Results 91 to 100 of about 15,759 (224)

Optimization of Growth Performance of Nile Tilapia (Oreochromis niloticus) in Biofloc Farming: Evaluating Growth Performance and System Stability Under Reduced Feeding Regimes

Aquaculture Research, Volume 2026, Issue 1, 2026.
This study assessed the effect of different feeding levels on the growth performance of Nile tilapia (Oreochromis niloticus) as well as on the stability of the biofloc system over a 9‐week experimental period. Three feeding levels were tested: BFT100 (100% of a complete ration), BFT75 (75% of a complete ration), and BFT50 (50% of a complete ration).
Lydie Bambi Langa, Amaël Bossan, Vincent Gennotte, Carole Rougeot   +3 more
wiley   +1 more source

Transcriptomic Response of Nitrosomonas europaea Transitioned from Ammonia- to Oxygen-Limited Steady-State Growth

mSystems, 2020
Ammonia-oxidizing microorganisms perform the first step of nitrification, the oxidation of ammonia to nitrite. The bacterium Nitrosomonas europaea is the best-characterized ammonia oxidizer to date. Exposure to hypoxic conditions has a profound effect on
Christopher J. Sedlacek, Andrew T. Giguere, Michael D. Dobie, Brett L. Mellbye, Rebecca V. Ferrell, Dagmar Woebken, Luis A. Sayavedra-Soto, Peter J. Bottomley, Holger Daims, Michael Wagner, Petra Pjevac   +10 more
doaj   +1 more source

Une réévaluation de la methode d'incorporation de H14C03- pour mesurer la nitrification autotrophe et son application pour estimer des biomasses de bactéries nitrifiantes [PDF]

, 1998
Le processus de nitrification joue un rôle essentiel dans le cycle de l'azote dans les milieux aquatiques naturels. La mesure de l'activité nitrifiante est une étape obligée pour bien comprendre et quantifier les flux d'azote dans ces milieux. Ce travail
Billen, G., Brion, N.
core   +1 more source

Topical Live and Heat‐Killed Probiotics for Photoaging Prevention: A Meta‐Analysis

Dermatology Research and Practice, Volume 2026, Issue 1, 2026.
Background The skin microbiome plays a crucial role in maintaining healthy skin, and imbalances in this microbial community, often caused by aging and environmental factors like UV radiation, are linked to photoaging. Topical probiotics may help prevent it.
Marina Rimadhani, Muhammad Yulianto Listiawan, Ingrid Suryanti Surono, Anang Endaryanto, Cita Rosita Sigit Prakoeswa, Tulika Banerjee   +5 more
wiley   +1 more source

Enhanced nitrogen removal via SNAD-IFAS process treating THP-AD liquor: microbial community and co-metabolism mechanism

npj Clean Water
The anaerobic digester liquor after thermal hydrolysis pretreatment (THP-AD liquor) is a highly hazardous wastewater containing high concentration of ammonium.
Xiaochen Xu, Xiao Feng, Weichun Gao, Fenglin Yang, Bing Liu, Chao Wang   +5 more
doaj   +1 more source

Primjena mikroorganizama u procesima uklanjanja dušikovih spojeva iz otpadnih voda [PDF]

Kemija u Industriji
Biološko uklanjanje dušikovih spojeva uporabom mikroorganizama ključan je proces u mnogim postrojenjima za pročišćavanje otpadnih voda. Iznimno korisnim u uklanjanju dušikovih spojeva pokazali su se predstavnici amonijak oksidirajućih bakterija i arheja ...
Maja Mitrović, Tonči Rezić
doaj   +1 more source

Recovering partial nitritation in a PN/A system during mainstream wastewater treatment by reviving AOB activity after thoroughly inhibiting AOB and NOB with free nitrous acid

Environment International, 2020
Starting up or recovering partial nitritation is a major challenge for achieving or maintaining stable partial nitritation/anammox (PN/A) during mainstream wastewater treatment.
Bo Wang, Zenghua Wang, Shanyun Wang, Xin Qiao, Xiaofei Gong, Qingteng Gong, Xuefan Liu, Yongzhen Peng   +7 more
doaj   +1 more source

Probiotics and Postbiotics for Skin Care Cosmetics

Journal of Tropical Medicine, Volume 2026, Issue 1, 2026.
Background The skin microbiome plays a central role in maintaining barrier integrity, immune regulation, and overall skin health. Disruption of this complex microbial ecosystem is increasingly associated with dermatological disorders such as acne, atopic dermatitis, and photoaging.
Morteza Alipour, Reihaneh Bonyad, Shamila Ghasemi, Parisa khoshdooz, Fatemeh Shafiee, Meysam Hasannejad-Bibalan, Rajib Chowdhury   +6 more
wiley   +1 more source

Effects of Dumpsite Leachates on Soil Biological Sentinels in Benin City, Nigeria

Journal of Applied Sciences and Environmental Management, 2019
In this study, an attempt was made to examine the effects of dumpsite leachate on soil biological sentinels by collecting leachate samples from Ikhueniro and Otofure dumpsites in Benin City Nigeria, and analyzed using standard methods.
D Nwadibie, E.I Atuanya
doaj   +1 more source

Meta-analysis reveals ammonia-oxidizing bacteria respond more strongly to nitrogen addition than ammonia-oxidizing archaea [PDF]

, 2016
Shifts in microbial communities driven by anthropogenic nitrogen (N) addition have broad-scale ecological consequences. However, responses of microbial groups to exogenous N supply vary considerably across studies, hindering efforts to predict community ...
Aronson, Emma L, Beman, J Michael, Carey, Chelsea J, Dove, Nicholas C, Hart, Stephen C   +4 more
core   +1 more source