Results 91 to 100 of about 2,652,890 (215)

Synthesis, computational studies and In Silico approaches of novel organophosphorus derivatives as anti-Alzheimer Agents

open access: yesScientific African
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]

open access: yes, 1990
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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Evaluation of the biological activity of novel monocationic fluoroaryl-2,2’-bichalcophenes and their analogues

open access: yes, 2014
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]

open access: yes, 2011
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

open access: yes
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

open access: yes, 1997
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

open access: yesScientific Papers Animal Science and Biotechnologies
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  

Free radical scavenging in vitro and biological activity of diphenyl diselenide-loaded nanocapsules: DPDS-NCS antioxidant and toxicological effects

open access: yes, 2015
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

open access: yesThe Journal of Antibiotics, 1973
K, Fukushima, K, Yazawa, T, Arai
openaire   +3 more sources

Cyanobacteria biological activity and histopathology

open access: yes, 2016
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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