Wednesday, 28 June 2017

Golden colonial algae

The term colonial as used here applies to algae composed of free-swimming look alike unicells, which form groups that may be large and elaborately interconnected as in Volvox, or smaller and relatively simple as in Synura.

The Synura colonies shown in this video - taken in phase contrast - have ovoid golden-brown cells characteristic of the Chrysophyta, each cell bearing two flagella whose beating propels the colony through the water with a smooth rolling motion.

Wednesday, 14 June 2017

Yellow, widespread and strong

Xanthoria parietina is a yellowy orange colored leafy lichen that is one of the most common species around. The yellow chemical xanthorin is thought to be produced as a defense against UV radiation to which it is exposed in its normal habitat like cement tiled roofs, exposed twigs and branches etc.

Friday, 9 June 2017

Lemnaquatic - A simple strategy for freshwater bioremediation

A report by Leon Werner and Johann Liebeton

In addition to nitrogen and potassium, phosphorus is in the form of phosphate, one of the three main components of fertilizers. Concentrated phosphate rock is a finite resource. Phosphorus cannot be replaced or produced artificially like oil. For this reason, it is essential to establish a sustainable phosphate cycle for a growing world population, which reduces the phosphate loss to a minimum.

Our project has the goal of using duckweeds to bind phosphate and nitrate from surface waters and generate biomass. In this way, the environmental problem of eutrophication is alleviated and simultaneously the sedimentation of the phosphate prevented, which would make recycling impossible. An efficient and sustainable use of biomass is fundamental for meeting the desired energy transition. For this reason, the harvested biomass will be used in biogas plants to generate electricity.

Tuesday, 6 June 2017

Miliary TBC

TBC lung (Miliary Tuberculosis) Human c.s.
Motic's BA410E Plan APO 4X | Moticam 10

Tuberculosis is an infectious disease. It is caused by the filamentary tubercle bacillus Mycobacterium tuberculosis an actinomycete. It was discovered in 1882 by Robert Koch, it attacks the various organs of the body. Miliary tuberculosis occurs when the bacilli are spread from a primary infection by the blood and produce a big number of small tubercles (nodules) in other parts of the body, mainly in the lungs.

Clinically, acute miliary tuberculosis, often is a typhoid-like illness that begins shortly after the initial infection, especially in children and adolescents. The tissue