Results 91 to 100 of about 1,261,463 (391)

Nitrate reduction by salivary bacteria, glucose metabolism, and lifestyle

open access: yesJournal of Oral Microbiology
Background Nitrate reductases (NR) expressed in oral bacteria reduce nitrate to nitrite. Depending on the environmental conditions and types of bacteria present nitrite can be further reduced to ammonium via Dissimilatory Nitrate Reduction to Ammonium ...
Evangelia Morou-Bermúdez   +6 more
doaj   +1 more source

Plasma Activation of Copper Nanowires Arrays for Electrocatalytic Sensing of Nitrate in Food and Water

open access: yesNanomaterials, 2019
Electrochemical methods for nitrate detection are very attractive since they are suitable for in-field and decentralized monitoring. Copper electrodes are often used to this aim as this metal presents interesting electrocatalytic properties towards ...
Angela Maria Stortini   +5 more
doaj   +1 more source

The impact of the geological formation on the groundwater used for the different purposes in the areas of Hamad Agha al-Tasani and Hittin Complex (northwest of Iraq) [PDF]

open access: yesمجلة التربية والعلم, 2007
In the present work 20hand-dugged and Artesian wells were chosse from Hamad Aga Al-Tathani and Hateen dwelling quarter for studying water quality .Samples of water were analyzed for determination of the following parameters (Electrical conductivity ...
Abdulmuam Kannah, Mahmood Al-Jobori
doaj   +1 more source

The analysis of groundwater nitrate pollution and health risk assessment in rural areas of Yantai, China

open access: yesBMC Public Health, 2020
Background Nitrate is one of the most common chemical contaminants of groundwater, and it is an important unqualified factor of rural groundwater in Yantai.
Guimei Yu   +5 more
semanticscholar   +1 more source

Anthropogenic signals recorded in an ice core from Eclipse Icefield, Yukon Territory, Canada [PDF]

open access: yes, 2001
Trends in the annual flux of sulfate and nitrate in a new ice core collected at an elevation of 3017 m on Eclipse Icefield, 45 km northeast of Mt. Logan were examined to determine the effect of anthropogenic activity on precipitation chemistry in the ...
Wake, Cameron P, Yalcin, Kaplan
core   +3 more sources

Multi‐omic characterization of consensus molecular subtype 1 (CMS1) colorectal cancer with dampened immune response improves precision medicine

open access: yesMolecular Oncology, EarlyView.
This study highlights the importance of multi‐omic analyses in characterizing colorectal cancers. Indeed, our analysis revealed a rare CMS1 exhibiting dampened immune activation, including reduced PD‐1 expression, moderate CD8+ T‐cell infiltration, and suppressed JAK/STAT pathway.
Livia Concetti   +10 more
wiley   +1 more source

The hidden danger: prolonged exposure to inorganic contaminants and kidney health in adolescents

open access: yesRenal Failure
Research on the impact of prolonged exposure to inorganic contaminants, such as perchlorate, nitrate, and thiocyanate (PNT), on the kidney health of individuals in the 12 ∼ 19 age range is lacking.
Xiaoran Xue   +5 more
doaj   +1 more source

Determination of the [15N]-Nitrate/[14N]-Nitrate Ratio in Plant Feeding Studies by GC–MS

open access: yesMolecules, 2019
Feeding experiments with stable isotopes are helpful tools for investigation of metabolic fluxes and biochemical pathways. For assessing nitrogen metabolism, the heavier nitrogen isotope, [15N], has been frequently used.
Sebastian Schramm   +8 more
doaj   +1 more source

Isotope tracing of nitrate : lessons from Malta [PDF]

open access: yes, 2010
Average concentrations of nitrate in Malta’s groundwaters are probably the highest among EU member states. This compromises the quality of an important resource -almost 60% of Malta’s water supply being provided by groundwater.
Heaton, Timothy   +3 more
core  

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

open access: yesMolecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez   +17 more
wiley   +1 more source

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