Results 41 to 50 of about 409,260 (353)

Pentazole and Ammonium Pentazolate: Crystalline Hydro-Nitrogens at High Pressure

open access: yes, 2017
Two new crystalline compounds, pentazole (N_{5}H) and ammonium pentazolate (NH_{4})(N_{5}), both featuring cyclo-{\rm N_{5}^{-}} are discovered using first principles evolutionary search of the nitrogen-rich portion of the hydro-nitrogen binary phase ...
Oleynik, Ivan I., Steele, Brad A.
core   +4 more sources

Synthesis and Properties of Cleavable Quaternary Ammonium Compounds

open access: yesJournal of Oleo Science, 2021
Quaternary ammonium compounds are widely used as antiseptic and disinfectant. It is been a concern that their widespread use will lead to an increase of environmental problems, therefore the development of biodegradable surfactants is necessary. The present research is aimed at the design of novel amphiphilic molecules with similar properties to those ...
Gilbert, Elangeni Ana   +5 more
openaire   +5 more sources

Impact of aeration on the removal of organic matter and nitrogen compounds in constructed wetlands treating the liquid fraction of piggery manure [PDF]

open access: yes, 2019
The increasing demand for sustainable, robust and cost-efficient wastewater treatment techniques strengthen the implementation of constructed wetlands (CWs) in the agricultural sector.
Donoso Pantoja, Natalia Carolina   +4 more
core   +1 more source

Cloud condensation nuclei activity, closure, and droplet growth kinetics of Houston aerosol during the Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) [PDF]

open access: yes, 2009
In situ cloud condensation nuclei (CCN) measurements were obtained in the boundary layer over Houston, Texas, during the 2006 Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) campaign onboard the CIRPAS Twin Otter.
Dubey, Manvendra K.   +12 more
core   +2 more sources

Plasma lipidomic and metabolomic profiles in high‐grade glioma patients before and after 72‐h presurgery water‐only fasting

open access: yesMolecular Oncology, EarlyView.
Presurgery 72‐h fasting in GB patients leads to adaptations of plasma lipids and polar metabolites. Fasting reduces lysophosphatidylcholines and increases free fatty acids, shifts triglycerides toward long‐chain TGs and increases branched‐chain amino acids, alpha aminobutyric acid, and uric acid.
Iris Divé   +7 more
wiley   +1 more source

The Relation Between the Quantity of Ammonium Compounds in Tobacco and the Nitrogen Monoxide (NO) Levels in the Smoke of Cigarettes Marketed in the Netherlands

open access: yesContributions to Tobacco and Nicotine Research, 2006
It has been suggested that ammonium compounds in tobacco generate nitrogen monoxide (NO) in cigarette smoke. This causes the smoke to retain the broncho-dilatory properties of the tobacco, which leads to an increased uptake of nicotine and thus to a ...
van Amsterdam JGC   +5 more
doaj   +1 more source

Process for purification of waste water produced by a Kraft process pulp and paper mill [PDF]

open access: yes, 1979
The water from paper and pulp wastes obtained from a mill using the Kraft process is purified by precipitating lignins and lignin derivatives from the waste stream with quaternary ammonium compounds, removing other impurities by activated carbon produced
Humphrey, M. F.
core   +1 more source

Magnetically-induced ferroelectricity in the (ND4)2[FeCl5(D2O)] molecular compound [PDF]

open access: yes, 2015
The number of magnetoelectric multiferroic materials reported to date is scarce, as magnetic structures that break inversion symmetry and induce an improper ferroelectric polarization typically arise through subtle competition between different magnetic ...
Campo, Javier   +5 more
core   +3 more sources

Targeting the AKT/mTOR pathway attenuates the metastatic potential of colorectal carcinoma circulating tumor cells in a murine xenotransplantation model

open access: yesMolecular Oncology, EarlyView.
Dual targeting of AKT and mTOR using MK2206 and RAD001 reduces tumor burden in an intracardiac colon cancer circulating tumor cell xenotransplantation model. Analysis of AKT isoform‐specific knockdowns in CTC‐MCC‐41 reveals differentially regulated proteins and phospho‐proteins by liquid chromatography coupled mass spectrometry. Circulating tumor cells
Daniel J. Smit   +19 more
wiley   +1 more source

Struvite Crystallization for Ammonium Removal from Cow Urine with Bulkhead Reactor

open access: yesJurnal Teknik Kimia dan Lingkungan, 2021
The presence of ammonium content in cow urine waste damages the aquatic ecosystem due to its toxicity. Ammonium content can be reduced by removing it through struvite crystallization.
Luluk Edahwati   +3 more
doaj   +1 more source

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