Results 91 to 100 of about 2,652,890 (215)
A novel established of compounds as 1,2-oxaphosphol-3-ene 3 and tetraethyl 4-nitroalk-1-ene-2,3-diyldiphosphonate 4a-e were synthesized through the coupling reaction of phosphonoallyl bromide E-2 with triethyl ammonium formate (TEAF) and nitroalkane ...
Maha Ameur +5 more
doaj +1 more source
Water chemistry and algal phosphatase activity in zinc-contaminated streams [PDF]
A study was carried out on algal phosphatase activity and water chemistry in zinc-contaminated streams in the Northern Pennine Orefield. Fourteen field sites were studied; They ranged from low contaminated to high-zinc sites (0.1 mg 1(^-1) to 19.4 mg 1(^-
Bellos, D.
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Warda A Hussin,1,2,*,† Mohamed A Ismail,1,3,* Abdullah M Alzahrani,1 Wael M El-Sayed,1,4 1King Faisal University, College of Science, Departments of Chemistry and Biological Sciences, Hofuf, Saudi Arabia; 2Al-Azhr University, Faculty of ...
Ismail MA +3 more
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Phytochemical and biological activity study on Pseuduvaria Rugosa (annonaceae) / Hairin Taha [PDF]
The study of phytochemical constituents on the bark of Pseuduvaria Rugosa from the family Annonaceae has resulted in the isolation and characterization of aporphine alkaloids, benzo[7]annulene and tripenoids.
Hairin, Taha
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In vitro characterisation of biological activity of novel nitric oxide donor compounds
Nitric oxide (NO), being a free radical, has a unique biological chemistry that, since its elucidation as a signaling molecule in the cardiovascular system, has been implicated in a range of diverse biological functions.
Hills, Daniel Richard
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Determinants of physical activity among adolescent females
INTRODUCTION: Women, and particularly African-American women, may be less physically active than what is ideal. Knowledge of factors that influence physical activity is valuable information to those planning and administering exercise promoting ...
Bungum, Timothy J., Vincent, Murray
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Honey – Biological Activity - A Review
Honey, considered a functional food with a complex chemical composition, has been revered since ancient times for its nutritional and therapeutic properties.
Alexandru Nan +10 more
doaj
Sílvio Terra Stefanello,1 Fernando Dobrachinski,1 Nélson Rodrigues de Carvalho,1 Guilherme Pires Amaral,1 Rômulo Pillon Barcelos,1 Vitor Antunes Oliveira,1 Cláudia Sirlene Oliveira,1 Camila Ferrazza Alves Giordani,2 Maria Ester
Soares FAA +10 more
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BIOLOGICAL ACTIVITIES OF ALBONOURSIN
K, Fukushima, K, Yazawa, T, Arai
openaire +3 more sources
Cyanobacteria biological activity and histopathology
Investigations of different aspects of cyanobacteria biological activity in relation to arthropods demonstrated their complex and many-sided character which contains a number of different components, including the inhibition of feeding and other ...
Гольдин, Е. Б.
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