Results 91 to 100 of about 642,149 (371)

Nutrient Reduction and Productivity Studies in Low Strength Freshwater Aquaculture Wastewater Using Lemna Gibba (Duckweed) System

open access: yesEnvironment Conservation Journal, 2002
The use  of macrophytes plants  for treatment of wastewater for nutrient removable is addressed A stuoy was conducted to ascertain  the  nutrient   reduction   potential   in  freshwater  aquaculture using  Lemna  gibba (Duckweed)   Experiments were ...
M. Karthik, R. Nagendran
doaj   +1 more source

Deuterium–hydrogen ratios, electrical conductivity and nitrate for high-resolution dating of polar ice cores

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2020
In order to support the very high time resolution required to observe short-term variations in nitrates and all other ions represented by electrical conductivity in polar ice, a Fourier transform infrared spectrometer was developed for measurement of ...
Gisela Dreschhoff   +2 more
doaj   +1 more source

Cystatin A promotes the antitumor activity of T helper type 1 cells and dendritic cells in murine models of pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Pancreatic ductal adenocarcinoma (PDAC) is a disease with very poor prognosis due to therapeutic limitations. We investigated the antitumor effects of cystatin A (CSTA) in PDAC murine models. We are first to confirm that CSTA enhances T helper type 1‐mediated antitumor effects through promotion of dendritic cells and M1 macrophage activity. CSTA can be
Alessandro Nasti   +8 more
wiley   +1 more source

The effect of some soil parameters on the total alkaloid levels of tubers of Bongardia chrysogonum in three regions of Iran

open access: yesیافته‌های نوین در علوم زیستی, 2015
The tubers of Bongardia chrysogonum, belonging to to Podophyllaceae, are rich in alkaloids. In this study, total alkaloid content of the tubers of this plant in Naghadeh, Zanjan and Boukan were determined by spectrophotometeric method.
Hadis Roshandel, Rashid Jamei
doaj  

MET variants with activating N‐lobe mutations identified in hereditary papillary renal cell carcinomas still require ligand stimulation

open access: yesMolecular Oncology, EarlyView.
MET variants in the N‐lobe of the kinase domain, found in hereditary papillary renal cell carcinoma, require ligand stimulation to promote cell transformation, in contrast to other RTK variants. This suggests that HGF expression in the microenvironment is important for tumor growth in such patients. Their sensitivity to MET inhibitors opens the way for
Célia Guérin   +14 more
wiley   +1 more source

Differential Regulation of Stomatal Conductance as a Strategy to Cope With Ammonium Fertilizer Under Ambient Versus Elevated CO2

open access: yesFrontiers in Plant Science, 2019
While nitrogen (N) derived from ammonium would be energetically less expensive than nitrate-derived N, the use of ammonium-based fertilizer is limited by the potential for toxicity symptoms.
Fernando Torralbo   +4 more
doaj   +1 more source

Targeting PRAME directly or via EZH2 inhibition overcomes retinoid resistance and represents a novel therapy for keratinocyte carcinoma

open access: yesMolecular Oncology, EarlyView.
The study evaluated the function and therapeutic implications of PRAME in basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). The findings demonstrate that PRAME impairs keratinocyte differentiation pathways. Furthermore, PRAME impairs anticancer response to retinoid compounds in BCC and SCC cells.
Brandon Ramchatesingh   +6 more
wiley   +1 more source

Exogenous Glycine Nitrogen Enhances Accumulation of Glycosylated Flavonoids and Antioxidant Activity in Lettuce (Lactuca sativa L.)

open access: yesFrontiers in Plant Science, 2017
Glycine, the simplest amino acid in nature and one of the most abundant free amino acids in soil, is regarded as a model nutrient in organic nitrogen studies.
Xiao Yang   +9 more
doaj   +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

Global inorganic nitrate production mechanisms: comparison of a global model with nitrate isotope observations

open access: yesAtmospheric Chemistry and Physics, 2019
. The formation of inorganic nitrate is the main sink for nitrogen oxides (NOx = NO + NO2). Due to the importance of NOx for the formation of tropospheric oxidants such as the hydroxyl radical (OH) and ozone, understanding the mechanisms and rates of ...
B. Alexander   +6 more
semanticscholar   +1 more source

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