نتایج جستجو برای: geochemical indicator

تعداد نتایج: 87188  

2003
Stephen McKay

Consensual deprivation indicators represent one influential approach to measuring poverty,. The approach is based on the assumption that there is a broad consensus on what goods/services families should be able to afford, and that we can use enforced non-possession of those items to measure deprivation. Using data from two GB surveys from 1999, this paper argues that (a) the degree of consensus...

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: :Organic & biomolecular chemistry 2010
Agostina A Ruggiu Michael Bannwarth Kai Johnsson

We describe the synthesis and fluorescence properties of a Fura-2FF-based fluorescent Ca(2+) indicator that can be covalently linked to SNAP-tag fusion proteins and retains its Ca(2+) sensing ability after coupling to protein.

2010
Geraldina Porto Witter

In the educational context it is examined the teacher-stress association. The teacher’s stress is related with variables of academic environment, of out of the school and of the teacher. The impact of that association can be see in the teacher’s health, in his achievement and in the quality of the teaching-learning process. With the objective to present one view of how issue is being considered...

2006
Joseph P. Simmons Deborah A. Prentice

We demonstrate that an oft-used indirect attitude assessment technique—the attitude activation paradigm—accurately assesses attitudes only when participants attend to the prime stimuli during the attitude activation task. Attitude activation attitudes toward obviously valenced words (e.g., torture, liberty) were more sensitive to attitude valence and extremity when participants were required to...

Journal: :Journal of Soils and Sediments 2021

Abstract Purpose The aim of the study was calculation geochemical, ecological, and ecotoxicological indices for assessment risk resulting from presence trace metals in soil. Methods Around 320 soil points were determined tests by regular square-grid method with a square side equal to 7.5 km. A total 11 used, including 6 geochemical indices, 1 index assessing potential ecological risk, 4 ecotoxi...

The most significant aspect of a geochemical exploration program is to define and separate the anomalous values from the background. In the past decades, geochemical anomalies have been identified by means of various methods. Most of the conventional statistical methods aiming at defining the geochemical concentration thresholds for separating anomalies from the background have limited the effi...

2008
K. G. McQueen

Geochemical anomalies are geochemical features different from what is considered normal. They can be the result of: 1. unusual or uncommon processes concentrating particular elements (e.g. an ore-forming process, weathering and element dispersion from an unusual element concentration such as an orebody); 2. element accumulation or concentration by common processes acting over long periods (e.g....

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.

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