Results 31 to 40 of about 480,480 (346)
Study on the effect of nine nucleic acid extraction lysing reagents on PCR amplification efficiency
Zhongguo shipin weisheng zazhi, 2023 ObjectiveTo explore the maximum allowable concentration of six chemical reagents and three enzyme lysates in a polymerase chain reaction （PCR） amplification system and the differences of IGEPAL CA-630 cleaving different species.MethodsPrepare different ...
LIU Na +3 more
doaj +1 more source
Measurement of Gross Alpha and Beta Activity Concentrations in Drinking Water from Sabon Gari Local Government Area of Kaduna State, Nigeria [PDF]
Physics Access, 2022 The gross alpha and beta activity concentrations of eighteen water samples, consisting of boreholes and Hand dug wells from Sabon Gari Local government area of Kaduna StateNigeria have been analyzed using, the potable single channel gas free MPC-2000B-DP
Usman Adamu +3 more
doaj +1 more source
The distribution of the maximum protection number in simply generated trees [PDF]
Combinator. Probab. Comp. 33 (2024) 518-553, 2023 The protection number of a vertex $v$ in a tree is the length of the shortest path from $v$ to any leaf contained in the maximal subtree where $v$ is the root. In this paper, we determine the distribution of the maximum protection number of a vertex in simply generated trees, thereby refining a recent result of Devroye, Goh and Zhao.
arxiv +1 more source
Wetting criteria for the applicability of membrane distillation [PDF]
, 1987 Membrane distillation can only be applied on liquid mixtures which do not wet a microporous hydrophobic membrane. Solutions of inorganic material in water have such high values of surface tension (γLgreater-or-equal, slanted72x10−3 N/m) that the non ...
Bargeman, D. +4 more
core +3 more sources
Разработка и регистрация лекарственных средств, 2022 Introduction. The use of highly active substances of various origins in the pharmaceutical industry exposes employees working directly with active pharmaceutical substances (APS) in manufacturing facilities to risks.
I. A. Pozharnov +3 more
doaj +1 more source
Medycyna Pracy, 2013 Currently, there are no legally binding workplace exposure limits for substances in the form of nanoobjects. There are different approaches to risk assessment and determination of occupational exposure limits.
Anna Maria Świdwińska-Gajewska +1 more
doaj +1 more source
Measuring the ambient air pollutants in Garmsar industrial district
Journal of Air Pollution and Health, 2022 Introduction: Nowadays, air pollution is one of the main health and environmental problems in developing cities, which is a result of the increasing use of fossil fuels, heat generators and the activities of industrial districts and industries ...
Ramin Maleki, Seyyede Sara Azhdari
doaj +1 more source
Известия ТИНРО, 2015 Toxicological tests of salmons on acute and chronic critical concentrations of 15 chemical elements (Cu, Zn, Pb, Co, Ni, Mn, Sb, Al, Fe, Mo, V, Se, S, As, B) are executed and compared with cited data, with special attention to mechanisms of the toxins ...
Eugeny V. Esin
doaj +1 more source
HEAVY METALS IN THE MYONEMATIC, HEPATIC AND RENAL TISSUES OF THE AFRICAN CAT FISH (Clarias gariepinus) FROM OGBA RIVER, BENIN CITY, NIGERIA. [PDF]
, 2015 The concentrations of heavy metals (Pb, Cd, Zn, Cu, Cr and As) in the myonematic, hepatic and renal tissues of the African catfish (Clarias gariepinus) from Ogba river, Benin City, Nigeria, were determined using a Unicam 929 series atomic absorption ...
EKUNDAYO, O. T. +2 more
core +2 more sources
Investigation of trace metals in the tissues of a freshwater fish (Crysichthys nigrodigitatus) from the Ikpoba River Dam, Benin City Nigeria [PDF]
, 2013 The concentrations of zinc (Zn), cadmium (Cd), copper (Cu), lead (Pb) and chromium (Cr) were evaluated in whole fish, muscle, liver and gills of the benthic fresh water fish, Crysichthys nigrodigitatus, from Ikpoba River Dam in Benin City, Nigeria, by ...
Oronsaye, Jude Aigbokavbo Osamuede +1 more
core +2 more sources