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Natural Science is an international journal dedicated to the latest advancements in natural sciences. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of natural sciences. All manus…
Andrey N. Volobuev, Eugene S. Petrov, Eugene L. Ovchinnikov
Research of interaction of β -radioactive radiation with biotissue of an organism is lead. It is shown, that during electrons moderation there is a brake electromagnetic radiation usually in an X-ray range. There are derivatives of the formulas in not relativ…
Salem A. Habib, Ismail T. Ibrahim, Mohamed A. Abd-Eldaye, Mamdouh M. El-Sheshtawey, Heba M. Waly
The development of new and effective antitumor agents is one of the main goals of medicinal and biochemical research at present. The present study is concerned with the evaluation of the previously synthesized N-Butylpyridoquinoxaline 1,4-dioxide (NBPQD) as a…
David Tran, Hazel Clothier, Jim P. Buttery, Nigel W. Crawford
BACKGROUND: The H1N1 pandemic in 2009 required a systematic coordinated response, which in Australia included a monovalent (H1N1/09) vaccine (Panvax ? ). SAEFVIC (Surveillance of Adverse Events Following Vaccination In the Community) is the Victorian, Austral…
A. B. N’Dri, J. Gignoux, A. Dembele, S. Konate
We tested the effects of different fire regimes (with different fire date and fuel load) on grass growth, tree debarking and topkill in a Guinea savanna of West Africa. Different fire intensities were simulated on two plots of 3.72 ha each, delimited in two s…
Edwin H. Kaufman Jr, Corey R. Page, Casey R. Watson
In this paper we introduce methods for approximating local standard time in the Northern Hemisphere using Polaris and the Big Dipper as well as alternative reference stars, and describe in detail how to construct a device we call a dipperclock to facilitate t…
Mayakkannan Sivasankari, Lakshmanan Rajendran
A mathematical model of potentiometric and amperometric enzyme electrodes is discussed. The model is based on the system of non-linear steady-state coupled reaction diffusion equations for Michaelis-Menten formalism that describe the concentrations of substra…
Martha Patricia González-Araoz, José Francisco Sánchez-Ramírez, José Luis Jiménez-Pérez, Ernesto Chigo-Anota, José Luis Herrera-Pérez, Julio Gregorio Mendoza-Álvarez
Colloidal suspensions of semiconductor InP@ZnS nanoparticles were prepared using single-step procedure without precursor injection. Thermal properties of toluene containing InP@ZnS semiconductor with different sizes (3.1, 4.2, and 4.6 nm) were measured by mod…
El-Sayed H. El-Tammany, Atef A. Hamed, Salah Z. A. Sowellim, Ahmed S. Radwan
Substituted 2-azoniaallene salts 1 are strong bifunctional electrophiles, undergo cyclization reactions furnish many series of heterocyclic compounds, where reacted with p-tolyl urea, phenyl thiourea and thiosemicarbazone derivatives to afford triazinium salt…
P. D. Friedman, S. Carey, M. Raessi
Release of dissolved volatiles during submarine fire fountaining eruptions can profoundly influence the buoyancy flux at the vent. Theoretical considerations indicate that in some cases buoyant magma can be erupted prior to fragmentation (~75% vesicle volume…
Azza H. Ali, M. Abdelaziz, H. F. Elbakhshawangy, Sameh H. Othman
In the current study, the extraction of heavy metal ions (Zn 2+ , Cu 2+ and Cd 2+ ) is suggested to be achieved by a counter-flow moving bed reactor. The studies are made at high (1 × 10 -2 M) and low (1 × 10 -4 M) initial concentrations of the heavy metal io…
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Natural Science is an international journal dedicated to the latest advancements in natural sciences. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of natural sciences. All manus… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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