نتایج جستجو برای: bio indicator

تعداد نتایج: 135279  

Journal: :Ecosystem health and sustainability 2022

ABSTRACT Tropospheric ozone (O 3 ) is a phytotoxic air pollutant and the O -induced visible foliar injury VFI) biomarker. A recently developed Free-air eXposure (FO X) promising facility to verify field-observed “O -like” VFIs establish flux-based threshold for VFI onset. The present study compared -like registered in southern European forest sites with actual observed FO X experiment. were eva...

2009
Daniel Traian PELE

This paper presents some aspects related to the issues of aggregating economic indicators. Departing from the research of Gh. Paun (1983) we will prove a theorem which states that under certain, natural assumptions, it is impossible to obtain an optimum aggregation. Unlike the original work of Paun, in this paper we are giving a rather simple proof of this theorem.

Journal: :Bulletin of mathematical biology 2007
Morten Gram Pedersena Alberto M Bersani Enrico Bersani

The validity of the Michaelis-Menten-Briggs-Haldane approximation for single enzyme reactions has recently been improved by the formalism of the total quasi-steady-state approximation. This approach is here extended to fully competitive systems, and a criterion for its validity is provided. We show that it extends the Michaelis-Menten-Briggs-Haldane approximation for such systems for a wide ran...

Journal: :J. Informetrics 2011
Massimo Franceschet Antonio Costantini

In December 2003, seventeen years after the first UK research assessment exercise, Italy started up its first-ever national research evaluation, with the aim to evaluate, using the peer review method, the excellence of the national research production. The evaluation involved 20 disciplinary areas, 102 research structures, 18,500 research products and 6,661 peer reviewers (1,465 from abroad); i...

2018

Ameisen: Die heimliche Weltmacht (Ants: Nature's Secret Power) is a nature documentary about ants. Wolfgang Thaler wrote, filmed, and directed the film, which focuses on the work of ant researcher Bert Hölldobler. The 2004 film was produced by Adi Mayer Film for Österreichischer Rundfunk (Austrian Broadcasting), a public service broadcaster headquartered in Vienna, Austria. Ants: Nature's Secre...

Journal: :Journal of Biochemical Technology 2022

Biological materials have gained an irreplaceable position as a bio-indicator for environmental pollution with heavy metals. Human hair and nails come to play important role in this subject according the recommendations by World Health Organization (WHO). The levels of selected toxic metals (Pb, Zn, Cd, Ni) fingernails scalp autoworkers Saudi Arabia were estimated study exposure chemical pollut...

Journal: :Journal of Industrial Ecology 2022

Abstract Over the years, our oceans have witnessed an enormous accumulation of marine plastic waste resulting from ocean‐related economic activities. As pollution adversely affects wildlife and habitat, society requires urgent solutions to address this increasingly alarming dilemma. Here, we turn attention circular economy principles reduce amount nonbiodegradable petroleum‐based litter. We con...

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