نتایج جستجو برای: overfished biomass threshold

تعداد نتایج: 185078  

2017
AMANDA K. FORD BRADLEY R. MOORE SEBASTIAN C. A. FERSE Amanda K. Ford

THEMATIC SECTION Humans and Island Environments High sedimentary oxygen consumption indicates that sewage input from small islands drives benthic community shifts on overfished reefs AMANDA K. FORD ∗1 , 2 , N ANNE VAN HO YT EM A 1 , 2 , BRADLEY R. MOORE 3 , LI N A PA N D I H A U 4 , CHRISTIAN WILD 2 AND SEBASTIAN C. A. FERSE 1 1Leibniz Center for Tropical Marine Research (ZMT), Fahrenheitstrass...

2009
Max A. Alekseyev

2-D threshold function f is a function defined on the integer interior of a rectangular area [0, m] × [0, n] on a plane and takes values from the set {0, 1} such that there is a straight line separating the pre-images f −1 (0) and f −1 (1). For the number of such functions only asymptotic bounds were known. We give an exact formula for the number of 2-D threshold functions and derive an asympto...

2011
Gert Ten Hoopen Stéphanie Van Den Berg Jiska Memelink Bruno Bocanegra Roel Boon

The multiple-look notion holds that the difference limen (DL) decreases with multiple observations. We investigated this notion for temporal discrimination in isochronous sound sequences. In Experiment 1, we established a multiple-look effect when sequences comprised nine standard time intervals (S) followed by an increasing number of comparison time intervals (C), but no multiple-look effect w...

Journal: :The Journal of the Acoustical Society of America 1969
L L Feth R V Wolf R C Bilger

Journal: :Applied and environmental microbiology 2007
Roland H Müller Thore Rohwerder Hauke Harms

The utilization of the fuel oxygenate methyl tert-butyl ether (MTBE) and related compounds by microorganisms was investigated in a mainly theoretical study based on the Y(ATP) concept. Experiments were conducted to derive realistic maintenance coefficients and K(s) values needed to calculate substrate fluxes available for biomass production. Aerobic substrate conversion and biomass synthesis we...

2016
Junfu Dong Xiaoyong Cui Shuping Wang Fang Wang Zhe Pang Ning Xu Guoqiang Zhao Shiping Wang

In the alpine steppe zone on the Central Tibetan Plateau, a large amount of area has been degraded due to natural and artificial factors. N & P fertilization is widely accepted to recover degraded pastures in other regions all over the world. However, it is not clear how alpine steppe communities respond to N & P fertilization, and what is the optimal application rate, in the perspective of for...

Journal: :Perception & psychophysics 1993
S Grondin

Experiments 1 and 2 compared, with a single-stimulus procedure, the discrimination of filled and empty intervals in both auditory and visual modalities. In Experiment 1, in which intervals were about 250 msec, the discrimination was superior with empty intervals in both modalities. In Experiment 2, with intervals lasting about 50 msec, empty intervals showed superior performance with visual sig...

Journal: :Report. Army Medical Research Laboratory 1963
M LOEB J R BINFORD

SOME FACTORS INFLUENCING THE EFFECTIVE AUDITORY INTENSIVE DIFFERENCE LIMEN

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