Results 61 to 70 of about 19,407 (254)

Porcine kidney xenotransplantation: From primate models to clinical reality

open access: yesAnimal Models and Experimental Medicine, EarlyView.
In the face of a critical shortage of human donor kidneys for end‐stage renal disease patients, porcine kidney xenotransplantation has emerged as a viable solution. This field has navigated major hurdles, including immune rejection, physiological incompatibilities, potential biomechanical differences and the risk of cross‐species infection. To overcome
Zihang Guo   +3 more
wiley   +1 more source

Ammonia-oxidizing bacteria respond to multifactorial global change [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
Recent studies have demonstrated that multiple co-occurring global changes can alter the abundance, diversity, and productivity of plant communities. Belowground processes, often mediated by soil microorganisms, are central to the response of these communities to global change.
Hans-Peter, Horz   +3 more
openaire   +2 more sources

Injectable Bone Cements: A Generational Framework for Bioactivity, Porosity, and Mechanobiological Design at the Nanoscale

open access: yesAdvanced NanoBiomed Research, EarlyView.
Key demographic, biological, and material considerations that drive the need for advanced injectable bone cement technologies. Injectable bone cements (IBCs) are widely used in orthopaedic and craniofacial applications due to their minimally invasive delivery and ability to provide early mechanical stabilisation.
Frank Fei   +2 more
wiley   +1 more source

Research progress on challenges and countermeasures for NOB suppression in urban wastewater PN/A process

open access: yesGongye shui chuli
Partial nitritation and Anammox(PN/A) combined process has become a research hotspot in urban wastewater denitrification process due to the advantages of saving aeration energy, no additional carbon source and low sludge production.
REN Heting, LIU Haojie
doaj   +1 more source

The response of nitrifier, N-fixer and denitrifier gene copy numbers to the nitrification inhibitor 3,4-dimethylpyrazole phosphate

open access: yesPlant, Soil and Environment, 2013
A laboratory incubation experiment was conducted to examine the effects of 3,4-dimethylpyrazole phosphate (DMPP) on the transformation of urea-N and associated microbial communities in a low-fertility brown soil. The soil was supplied with urea at 180 kg
X.X. Dong   +4 more
doaj   +1 more source

Electroenzymatic CO2 Fixation

open access: yesAngewandte Chemie International Edition, EarlyView.
Electroenzymatic CO2 fixation enables energy‐efficient, highly selective synthesis of complex molecules. Unlocking its full potential requires fundamental understanding of electrode‐coupled reductases and carboxylases. This review critically discusses available enzymes, product scope, and key thermodynamic and kinetic considerations, highlighting ...
Leonardo Castañeda‐Losada   +4 more
wiley   +1 more source

Ammonia-oxidizing archaea and ammonia-oxidizing bacteria in six full-scale wastewater treatment bioreactors [PDF]

open access: yesApplied Microbiology and Biotechnology, 2011
In this study, dideoxy sequencing and 454 high-throughput sequencing were used to analyze diversities of the ammonia monooxygenase (amoA) genes and the 16S rRNA genes of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in six municipal wastewater treatment plants.
Tong, AHY   +4 more
openaire   +4 more sources

Advances in Chitosan Nanoparticles: A Comprehensive Review of Properties, Synthesis, Characterization, Multidisciplinary Applications, and Future Perspectives

open access: yesJournal of Applied Polymer Science, EarlyView.
This review highlights the synthesis of chitosan nanoparticles from natural sources, the thorough characterization of them, and use of microscopic and spectroscopic methods. It emphasizes that it has some indispensable properties such as being non‐toxic, antimicrobial, and capable of controlled drug release.
Mariam Sohail Mansoor   +6 more
wiley   +1 more source

Stably Nitritation Process Using Heat-shocked Immobilized Activated Sludge

open access: yes工程科学与技术, 2015
:The heat-shock method was used to treat immobilized activated sludge, and NO2--N accumulation was successfully achieved. The investigation of the temperature and processing time of the heat shock revealed that nitrite oxidizing bacteria (Nitrite ...
陈光辉   +5 more
doaj  

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke   +9 more
wiley   +1 more source

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