Sb

"" This paper is the first publication that reported the concentrations of a number of rare earth elements in biodetritus. The rare earth elements are a key component of modern hi-technology products and they are a new component in the modern solid wastes and waste waters. This paper is an innovative and significant contribution to the database for modern environmental monitoring.
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Biodetritus that formed over a 7-month period in microcosms with Viviparus viviparus, Unio pictorum , and Ceratophyllum demersum contained a number of elements. This is the first study to determine concentrations of some elements in biodetritus. Neutron activation analysis showed that the elements’ concentrations decrease in the following order: Ca > Zn > Ba > Br > Ce > Se > Nd > La > U > Hf > Sb > Th > Sm > S > Cs > Au. The data obtained contribute to understanding of the polyfunctional role of aquatic organisms in aquatic ecosystems.
Key words:
Zn, viviparus, unio, U, Th, Sm, Se, Sb, rare, pictorum, Nd, La, Hf, elements, ecosystems, earth, detritus, demersum, Cs, ceratophyllum, Ce, Ca, Br, Ba, Au, aquatic, biogeochemistry,
Title: The role of biodetritus in accumulation of elements in aquatic ecosystems
Author(s): Ostroumov S. A.; Kolesov G. M.
Source: CONTEMPORARY PROBLEMS OF ECOLOGY,  Volume: 3,  Issue: 4,  Pages: 369-373,  DOI: 10.1134/S1995425510040016,  Published: AUG 2010; full text free: http://ru.scribd.com/doc/155530269/
abstract:
http://www.scribd.com/doc/75098592/

The reference in a traditional form:
Ostroumov S. A., Kolesov G. M. The role of biodetritus in accumulation of elements in aquatic ecosystems. -  CONTEMPORARY PROBLEMS OF ECOLOGY,  3 (4): 369-373.
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This study examines the experiences of 18 Latina/o students attending the University of Arizona in the wake of SB 1070 (anti-immigrant) and HB 2281 (anti-Mexican American Studies). Students experienced a hostile campus climate; however, many channeled their frustrations into political engagement. Findings indicate that despite anti-Latina/o legislation and a hostile campus racial climate, students do not necessarily become racial victims. Practitioners should create opportunities for students to engage in dialogue, which critically analyzes racial policies.

We have isolated the cDNA of the gene PaLAX1 from a wild cherry tree (Prunus avium). The gene and its product are highly similar in sequences to both the cDNAs and the corresponding protein products of AUX/LAX-type genes, coding for putative auxin influx carriers. We have prepared and characterized transformed Nicotiana tabacum and Arabidopsis thaliana plants carrying the gene PaLAX1. We have proved that constitutive overexpression of PaLAX1 is accompanied by changes in the content and distribution of free indole-3-acetic acid, the major endogenous auxin. The increase in free indole-3-acetic acid content in transgenic plants resulted in various phenotype changes, typical for the auxin-overproducing plants. The uptake of synthetic auxin, 2,4-dichlorophenoxyacetic acid, was 3 times higher in transgenic lines compared to the wild-type lines and the treatment with the auxin uptake inhibitor 1-naphthoxyacetic acid reverted the changes caused by the expression of PaLAX1. Moreover, the agr...