Results 21 to 30 of about 232,319 (335)

Erythrocytes and Vascular Function: Oxygen and Nitric Oxide

Frontiers in Physiology, 2018
Erythrocytes regulate vascular function through the modulation of oxygen delivery and the scavenging and generation of nitric oxide (NO). First, hemoglobin inside the red blood cell binds oxygen in the lungs and delivers it to tissues throughout the body
Christine C. Helms, Mark T. Gladwin, Mark T. Gladwin, Daniel B. Kim-Shapiro, Daniel B. Kim-Shapiro   +4 more
doaj   +1 more source

A comparative evaluation of surface water quality standards for lakes and fish ponds from Bucharest and vicinity

Romanian Journal of Ecology & Environmental Chemistry, 2020
Monitoring of lakes and ponds water quality parameters is important to evaluate the interactions between quality and effects on aquatic organisms’ growth and health.
Gina Vasile Scaeteanu, Roxana Maria Madjar, Mala-Maria Stavrescu-Bedivan   +2 more
doaj   +1 more source

Beetroot and radish powders as natural nitrite source for fermented dry sausages.

Meat Science, 2020
The aim of this study was to investigate the use of radish and beetroot powders as potential substitutes of nitrite in fermented dry sausages due to their high nitrate content (around 16,000 and 14,000 mg/kg, respectively).
M. Ozaki, P. E. Munekata, R. A. Jacinto-Valderrama, P. Efraim, M. Pateiro, J. Lorenzo, M. A. Pollonio   +6 more
semanticscholar   +1 more source

Overcoming Nitrite Oxidizing Bacteria Adaptation through Alternating Sludge Treatment with Free Nitrous Acid and Free Ammonia.

Environmental Science and Technology, 2019
Stable suppression of nitrite oxidizing bacteria (NOB) is one of the major bottlenecks for achieving mainstream nitrite shunt or partial nitritation/anammox (PN/A).
Haoran Duan, L. Ye, Xuanyu Lu, Zhiguo Yuan   +3 more
semanticscholar   +1 more source

Ion Selective Amperometric Biosensors for Environmental Analysis of Nitrate, Nitrite and Sulfate

Sensors, 2020
Inorganic ions that can be redox-transformed by living cells can be sensed by biosensors, where the redox transformation gives rise to a current in a measuring circuit. Such biosensors may be based on enzymes, or they may be based on application of whole
Niels Peter Revsbech, Michael Nielsen, Deby Fapyane   +2 more
doaj   +1 more source

CdS/TiO2 Nanocomposite-Based Photoelectrochemical Sensor for a Sensitive Determination of Nitrite in Principle of Etching Reaction.

Analytical Chemistry, 2020
The CdS/TiO2 nanocomposite (NC) photoelectrochemical (PEC) sensor was constructed based on a new sensing strategy for nitrite assay. The CdS etching process caused by nitrite-in-acid solution was confirmed and applied to nitrite sensing.
Bowen Gao, Xin Zhao, Zhishan Liang, Zhifang Wu, Wei Wang, Dongxue Han, L. Niu   +6 more
semanticscholar   +1 more source

Nitrate ammonification by Nautilia profundicola AmH: experimental evidence consistent with a free hydroxylamine intermediate.

Frontiers in Microbiology, 2013
The process of nitrate reduction via nitrite controls the fate and bioavailability of mineral nitrogen within ecosystems; i.e. whether it is retained as ammonium (ammonification) or lost as nitrous oxide or dinitrogen (denitrification). Here, we present
Thomas E Hanson, Thomas E Hanson, Thomas E Hanson, Barbara J Campbell, Katie M. Kalis, Mark A. Campbell, Martin G Klotz   +6 more
doaj   +1 more source

Vaccine-Mediated Mechanisms Controlling Francisella tularensis SCHU S4 Growth in a Rat Co-Culture System

Pathogens, 2020
Francisella tularensis causes the severe disease tularemia. In the present study, the aim was to identify correlates of protection in the rat co-culture model by investigating the immune responses using two vaccine candidates conferring distinct degrees ...
Helena Lindgren, Kjell Eneslätt, Igor Golovliov, Carl Gelhaus, Patrik Rydén, Terry Wu, Anders Sjöstedt   +6 more
doaj   +1 more source

Phytoplankton Community and Nutrient Concentration in Jatigede Reservoir

Jurnal Ilmu Pertanian Indonesia, 2021
Jatigede reservoir is a new reservoir in West Java Province. There is not much information about phytoplankton and nutrients in this reservoir. The aim of the research was to study the relationship between phytoplankton community and nutrient in the ...
Randi Fitriadi, Niken Tunjung Murti Pratiwi, Rahmat Kurnia   +2 more
doaj   +1 more source

Nitrite inhibition of microalgae induced by the competition between microalgae and nitrifying bacteria.

Water Research, 2020
Outdoor microalgae cultivation systems treating anaerobic membrane bioreactor (AnMBR) effluents usually present ammonium oxidising bacteria (AOB) competition with microalgae for ammonium uptake, which can cause nitrite accumulation.
J. González-Camejo, P. Montero, S. Aparicio, M. V. Ruano, L. Borras, A. Seco, R. Barat   +6 more
semanticscholar   +1 more source