Results 61 to 70 of about 165,485 (291)

Ocena zawartości azotanów w wodach rzeki Dunajec

open access: yesAgronomy Science, 2006
Human activities transform the natural environment and cause an extreme biogen inflow to surface waters. The current investigation was aimed to estimate the effect of agricultural and domestic human activities at lowland area of the Dunajec watershed on ...
Barbara Wiśniowska-Kielian   +1 more
doaj  

Concentrations of some chemical components in white asparagus spears depending on the cultivar and post-harvest irrigation treatments

open access: yesFolia Horticulturae, 2018
The effect of post-harvest irrigation and genotype on the quality components of white asparagus spears was investigated. The field experiment was conducted in 2003-2008 on a very light soil in the Bydgoszcz region.
Wichrowska Dorota   +6 more
doaj   +1 more source

Migraines Are Correlated with Higher Levels of Nitrate-, Nitrite-, and Nitric Oxide-Reducing Oral Microbes in the American Gut Project Cohort. [PDF]

open access: yes, 2016
Nitrates, such as cardiac therapeutics and food additives, are common headache triggers, with nitric oxide playing an important role. Facultative anaerobic bacteria in the oral cavity may contribute migraine-triggering levels of nitric oxide through the ...
Antonio Gonzalez   +6 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Norfloxacinium nitrate

open access: yesIUCrData
In the title salt [systematic name: 4-(3-carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium nitrate], C16H19FN3O3 +·NO3 −, proton transfer from nitric acid to the N atom of the piperazine ring of norfloxacin has occurred to form a molecular salt.
Abdusamat Rasulov   +6 more
openaire   +3 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Observations of total RONO2 over the boreal forest: NO x sinks and HNO3 sources [PDF]

open access: yes, 2013
In contrast with the textbook view of remote chemistry where HNO 3 formation is the primary sink of nitrogen oxides, recent theoretical analyses show that formation of RONO2 (ΣANs) from isoprene and other terpene precursors is the primary net chemical ...
Apel, E   +13 more
core   +1 more source

Assessing the integration of wetlands along small European waterways to address diffuse nitrate pollution [PDF]

open access: yes, 2017
Nitrate concentrations in numerous European fresh watercourses have decreased due to end-of-pipe measures towards manure and fertilization management, but fail to meet the environmental objectives.
Boets, Pieter   +5 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Bad Water 2009: The Impact on Human Health in the Chesapeake Bay Region [PDF]

open access: yes, 2009
The report links pollution to human health risks and calls on the federal Environmental Protection Agency (EPA) to act now to reduce that pollution and the potential threats to human ...
Tom Pelton
core   +1 more source

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