Small-Scale Planktonic Structure: Persistence and Trophic Consequences

A Study of Factor Structure, Reliability and Validity of the Persistence Scale

The present research aims to study the factor structure, reliability, and validity of the persistence Scale.  Persian version of the measure persistence Using Double translation technique on 460 individuals (230 male and 230 female) students Schools in Hamadan were implemented in the academic year 2018-19. Cronbach's alpha range (69% until 77%) revealed that Persian version of the persistence a...

planktonic Frequency and Biodiversity survey of Shadegan wetland and determination of its trophic status

In this study frequency and composition of plankton in Shadegan wetland was carried out in 5 stations during 2007-2008. Genus qualitative identification and their composition and quantitative frequency aspect were studied (for phytoplankton chlorophyll a). Frequency of total 42 genus phytoplankton in 4 classes Bacilariophyceae (Diatom), Cyanophyceae, Chlorophyceae and Dinophyceae are 69.4, 22.2...

Evaluation and classification of trophic status in coastal waters of Homozgan province using trophic index Scale (Trixcs) and unscale (Untrixcs)

One of the most important issues in environmental management of coastal waters is the evaluation of Eutrophication. In this study, the trophic status of coastal waters of Hormozgan province was evaluated using Scale (TRIXCS) and Unscale (UNTRIXCS) trophic indices in 2012. The results showed that TRIXCS values were in the range of 3.6 to 5.9 (in the area 1 Mezo-Eutroph, areas 2 and 3 Mezotroph, ...

Resonant dark forces and small-scale structure.

A dark force can impact the cosmological history of dark matter (DM), both explaining observed cores in dwarf galaxies and setting the DM relic density through annihilation to dark force bosons. For GeV-TeV DM mass, DM self-scattering in dwarf galaxy halos exhibits quantum mechanical resonances, analogous to a Sommerfeld enhancement for annihilation. We show that a simple model of DM with a dar...

Small Scale Structure and High Redshift Hi