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1855 1
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1869 1
1872 4
1873 1
1875 1
1876 1
1877 1
1878 2
1880 1
1883 1
1888 1
1895 1
1897 1
1898 1
1900 1
1901 1
1905 1
1907 1
1909 2
1910 1
1912 1
1913 2
1915 2
1916 1
1919 1
1922 2
1923 2
1924 6
1925 2
1926 5
1927 5
1928 3
1929 4
1930 3
1931 2
1932 5
1933 6
1934 8
1935 5
1936 4
1937 6
1938 6
1939 8
1940 11
1941 4
1942 5
1943 3
1944 4
1945 23
1946 59
1947 82
1948 117
1949 119
1950 147
1951 171
1952 167
1953 189
1954 163
1955 136
1956 143
1957 157
1958 159
1959 164
1960 181
1961 172
1962 214
1963 325
1964 455
1965 425
1966 392
1967 619
1968 726
1969 967
1970 1095
1971 1388
1972 1584
1973 1274
1974 1062
1975 1089
1976 938
1977 840
1978 721
1979 789
1980 762
1981 775
1982 891
1983 913
1984 1027
1985 1070
1986 1039
1987 1046
1988 1018
1989 1131
1990 1131
1991 1125
1992 1147
1993 1114
1994 1131
1995 1114
1996 1156
1997 1173
1998 1130
1999 1264
2000 1426
2001 1686
2002 1644
2003 1639
2004 1884
2005 2184
2006 2470
2007 2673
2008 2869
2009 2931
2010 3033
2011 3219
2012 3430
2013 3514
2014 3606
2015 3542
2016 3562
2017 3612
2018 3878
2019 4030
2020 4331
2021 4266
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2024 2159

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105,144 results

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Page 1
Generation and Reactivity of C(1)-Ammonium Enolates by Using Isothiourea Catalysis.
McLaughlin C, Smith AD. McLaughlin C, et al. Chemistry. 2021 Jan 21;27(5):1533-1555. doi: 10.1002/chem.202002059. Epub 2020 Nov 10. Chemistry. 2021. PMID: 32557875 Free PMC article. Review.
C(1)-Ammonium enolates are powerful, catalytically generated synthetic intermediates applied in the enantioselective alpha-functionalisation of carboxylic acid derivatives. This minireview describes the recent developments in the generation and application of C(1)-ammon …
C(1)-Ammonium enolates are powerful, catalytically generated synthetic intermediates applied in the enantioselective alpha-functional …
Overcoming ammonium toxicity.
Bittsánszky A, Pilinszky K, Gyulai G, Komives T. Bittsánszky A, et al. Plant Sci. 2015 Feb;231:184-90. doi: 10.1016/j.plantsci.2014.12.005. Epub 2014 Dec 12. Plant Sci. 2015. PMID: 25576003
Ammonia (ammonium ion under physiological conditions) is one of the key nitrogen sources in cellular amino acid biosynthesis. ...Our compiled data show a surprisingly high number of little-studied reactions that might influence cellular ammonium concentrations. The …
Ammonia (ammonium ion under physiological conditions) is one of the key nitrogen sources in cellular amino acid biosynthesis. ...Our …
Enhancing selective ammonium transport in membrane electrochemical systems.
Yang K, Qin M. Yang K, et al. Water Res. 2024 Jun 15;257:121668. doi: 10.1016/j.watres.2024.121668. Epub 2024 Apr 23. Water Res. 2024. PMID: 38692262
Membrane electrochemical system (MES), which utilizes electrochemical redox reactions to transport ammonium ions through cation exchange membranes, has been considered as an effective technology for ammonia recovery from wastewater. In this study, we develop a mathematical …
Membrane electrochemical system (MES), which utilizes electrochemical redox reactions to transport ammonium ions through cation excha …
Ammonium Salts Promote Adaptive Changes of Rat Immune System to Ultimate Load in the Forced Swimming Model.
Korf EA, Kudryavtsev IV, Serebryakova MK, Novozhilov AV, Mindukshev IV, Goncharov NV. Korf EA, et al. Bull Exp Biol Med. 2021 Apr;170(6):714-718. doi: 10.1007/s10517-021-05139-x. Epub 2021 Apr 24. Bull Exp Biol Med. 2021. PMID: 33893945
We studied the effect of different doses of ammonium chloride (ACl) and ammonium carbonate (ACr) on immunological parameters of the peripheral blood in rats during high-intensity exercise. ...
We studied the effect of different doses of ammonium chloride (ACl) and ammonium carbonate (ACr) on immunological parameters o …
Stereumamides E-H, four new minor quaternary ammonium hybrids from Stereum hirsutum.
Hu QY, Duan YC, Pu XJ, Li SS, Li GH, Zhao PJ. Hu QY, et al. Nat Prod Res. 2022 Jan;36(1):271-278. doi: 10.1080/14786419.2020.1779266. Epub 2020 Jun 15. Nat Prod Res. 2022. PMID: 32538673
In our preview research, four novel quaternary ammonium hybrids were isolated from the Stereum hirsutum FP-91666. To further discover this type of compounds, S. hirsutum was fermented in 30 L YMG broth, and eight hybrid compounds including four new quaternary …
In our preview research, four novel quaternary ammonium hybrids were isolated from the Stereum hirsutum FP-91666. To further discover …
Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions.
Fan R, Chen CL, Lin JY, Tzeng JH, Huang CP, Dong C, Huang CP. Fan R, et al. Bioresour Technol. 2019 Jan;272:465-472. doi: 10.1016/j.biortech.2018.10.064. Epub 2018 Oct 26. Bioresour Technol. 2019. PMID: 30390539
This research aims at studying the characteristics of ammonium adsorption onto hydrous bamboo biochar. Results showed that pH played the most important role in ammonium adsorption. High ionic strength enhanced the ammonium adsorption capacity of bamboo biocha …
This research aims at studying the characteristics of ammonium adsorption onto hydrous bamboo biochar. Results showed that pH played …
REACTIONS TO AMMONIUM PERSULFATE.
CALNAN CD, SHUSTER S. CALNAN CD, et al. Arch Dermatol. 1963 Dec;88:812-5. doi: 10.1001/archderm.1963.01590240136022. Arch Dermatol. 1963. PMID: 14065981 No abstract available.
[Quaternary ammonium salts].
LECHAT P. LECHAT P. Therapie. 1954;9(6):799-840. Therapie. 1954. PMID: 14373625 French. No abstract available.
Testing quaternary ammonium germicides.
GOETCHIUS GR, GRINSFELDER H. GOETCHIUS GR, et al. Appl Microbiol. 1953 Nov;1(6):271-7. doi: 10.1128/am.1.6.271-277.1953. Appl Microbiol. 1953. PMID: 13105284 Free PMC article. No abstract available.
Ammonium removal by partial nitritation and Anammox processes from wastewater with increased salinity.
Malovanyy A, Plaza E, Trela J, Malovanyy M. Malovanyy A, et al. Environ Technol. 2015 Mar-Apr;36(5-8):595-604. doi: 10.1080/09593330.2014.953601. Epub 2014 Sep 3. Environ Technol. 2015. PMID: 25185696
It was shown that conductivity cannot be used for monitoring the process when a reactor is treating wastewater with increased salinity, whereas pH can be correlated to effluent ammonium concentration regardless of wastewater salinity....
It was shown that conductivity cannot be used for monitoring the process when a reactor is treating wastewater with increased salinity, wher …
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