Results 211 to 220 of about 8,411,226 (265)

The primary acid product of DPNH

Biochemical and Biophysical Research Communications, 1973
Abstract Analysis of the proton magnetic resonance spectra obtained at 220 MHz confirms the axial conformation of the C-6 hydroxyl in the model primary acid product 1-n-(2,6-dichlorobenzyl)-6-hydroxy-1,4,5,6-tetrahydronicotinamide. In the primary acid product of DPNH however the reaction occurs stereospecifically with the substitution at the C-6 ...
N J Oppenheimer, Norman J Oppenheimer
exaly   +3 more sources

PHYTOPLANKTON PRIMARY PRODUCTIVITY

Ukrainian Journal of Natural Sciences, 2023
Primary productivity is an important integral parameter describing energy potential of aquatic organisms’ vital activity. Primary productivity determines the quality of water environment, its selfpurifying capacity – from the Global Ocean to various continental ecosystems (Odum 1953, Williams et al. 2002, Bott et al.
V. Shcherbak, N. Korniychuk
openaire   +1 more source

Primary Productivity in the Golden Horn

Environmental Monitoring and Assessment, 2005
The shores of the Golden Horn--once most important seaport of the region--represented throughout history a romantic and recreational venue. This tributary to the Bosphorus, however, became seriously polluted with the extensive industrialization and rapid population growth in Istanbul over the past century.
GÖNÜLLÜ, MUSTAFA TALHA   +6 more
openaire   +4 more sources

Primary production and primary producers

1996
The distribution of plant species and their productivity in a fluvial hydro-system is dependent on the complex interactions between hydrodynamic processes (e.g. flow velocity, shear stress, the nature and stability of the substrate etc.), hydrochemical processes (e.g.
A. R. G. Large, G. Pautou, C. Amoros
openaire   +1 more source

The primary production

1985
The primary production of the phytoplankton is one of the most important sources of the energy input in freshwater ecosystems (Moss 1980). A broad knowledge of endogenous and exogenous control mechanisms of phytoplanktonic primary production is necessary to obtain basic information on the energy flow in the ecosystem of Lake Stechlin.
R. Koschel, W. Scheffler
openaire   +1 more source

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