2018.03.15 |

A small protein with many applications

Researchers from the Department of Molecular Biology and Genetics and from the Department of Biomedicine at Aarhus University have collaboratively developed and described a llama-antibody that might have significant impact for future diagnostics and treatment of, e.g., kidney diseases.

Past oil disasters have shown that only 15 to 25% of the oil can be effectively removed from the marine environments. Photo: Janne Fritt-Rasmussen.
Greenland Oil Spill Response conducts training to be prepared for oil spills in the Arctic. Photo: Lonnie Bogø Wilms.
Leendert Vergeynst, Aarhus Universiet og Lorenz Meire, Grønlands Naturinstitut, samler havis fra Godthåbsfjord i Grønland for at studere olie-spisende bakterier i arktisk havvand. Foto: Wieter Boone.
Schematic diagram of Arctic-specific conditions that affect microbial degradation of oil spills: A) Sea ice and icebergs hamper wind/wave-induced mixing in the upper water column and cause a thicker oil slick, which, in combination with low temperature, reduces evaporation, dispersion and dissolution. All these effect result in larger oil droplets, which microbes cannot degrade. B) Most oil compounds are not soluble in water. Therefore, the bacteria form a biofilm on the oil droplets in order to be able to consume the oil compounds. A small fraction of the oil compounds is water-soluble and thus consumed by both biofilm and free-living bacteria. C) Oil-mineral and oil-phytoplankton aggregates, which may enhance oil sedimentation ('dirty blizzards'), are formed upon interaction with sediment plumes from glaciers and phytoplankton blooms, respectively. D) Photooxidation by ultraviolet radiation from sunlight can be important, espectially during summer. Ultraviolet light helps degrading oil molecules, but at the same time, the oil toxicity towards marine organisms may increase. E) Deep mixing of the water column and upwelling cause nutrient replenishment. Oceanographical conditions may thus be important to provide fresh nutrients for oil-eating microbes. (Credit: Leendert Vergeynst)

2018.03.08 |

Oil-eating microbes are challenged in the Arctic

Bacteria play a major role in cleaning up oil spills and mitigating its environmental impacts. In a review published in ‘Science of the Total Environment’, researchers from Aarhus University, Denmark, examine the major limiting factors for microbial degradation in Arctic environments.

[Translate to English:] En vulkansk "hot pool" med archaea i forskellige, orange farver voksende langs kanten. Henover billedet ses den tredimensionelle opbygning af anti-CRISPR-proteinet. Foto: Colourbox og Ditlev E. Brodersen

2018.03.06 |

Arms race among microbes

The hot, muddy pools of Iceland are home to a number of simple, single-celled organisms, and new research shows that they also constitute a true biological battlefield and the basis for an arms race of unprecedented magnitude. The new knowledge about the struggle between living organisms in hot pools gives us a much better understanding of how…

Professor Søren Fournais, Department of Mathematics, Aarhus University. Photo: Søren Kjeldgaard

2018.03.12 |

Elite Research Prize awarded to Professor Søren Fournais

Most of us are unaware of the mathematics that lies hidden in our daily lives. Søren Fournais is an expert in describing the world through the equations, particularly tiny quantum physical phenomena. On 1 March, he received an Elite Research Prize 2018 of DKK 1.2 million from the Ministry of Higher Education and Science.

[Translate to English:] Ph.d.-studerende Mark Simkin, Institut for Datalogi, Aarhus Universitet. (Privatfoto)

2018.03.12 |

Elite Research travel grant for young computer scientist

PhD student, Mark Simkin, from the Department of Computer Science receives an Elite Research travel grant 2018 from the Ministry of Higher Education and Science.

Pink-footed geese foraging on arable land in West Jutland. (Photo: Kevin K. Clausen, AU)
Pink-footed geese are found in very large flocks in West Jutland. All the birds need food. (Photo: Jørgen Peter Kjeldsen,
(A) The proportion of pink-footed geese wintering in Denmark. (B) Development in the area of maize in West and North Jutland where the geese winter, and (C) the proportion of pink-footed geese that continue their migration to the Netherlands. All figures are from the period 1990-2015. (Figure credit: Kevin K. Clausen, AU)

2018.02.28 |

Maize fields entice geese to winter in Denmark

More and more geese remain in Denmark for the winter. They forage in the growing number of maize fields all over the country. Researchers warn that, in the long term, the many geese may cause problems for agriculture.

2018.02.28 |

How polarisation helps tumour cells metastasise

An international research team identifies single-cell polarity as a feature of circulating tumour cells that helps cells to leave circulation and found metastases. The novel results provide a new potential target in the fight against metastatic cancer.

2018.02.23 |

BISC-E: New student competition inspires both students and industries

This year, the first Danish edition of the new European student competition "Biobased Innovation Student Challenge Europe" (BISC-E) will be held.

The electronic tags, easily fitted on the back of a porpoise by suction cups, fall off after approx. 20-40 hours of use. (Photo: Lis Bach, AU) (Foto: Lis Bach, AU)
Signe Sveegaard and Siri Elmegaard from the Department of Bioscience, Aarhus University, fit electronic tags on a porpoise caught in a pound net. (Photo: Lis Bach, AU)

2018.02.21 |

Noise from ships scares porpoises

A new study shows, for the first time, that porpoises flee from and stop feeding when disturbed by heavy ship noise.

2018.02.15 |

New European network on DNA-based nanorobotics coordinated by Aarhus University

Marie Skłodowska-Curie program has funded new consortium, headed by professor Kurt Gothelf at the Interdisciplinary Nanoscience Center, with 4 million euro. Through the training of 15 PhD students the aim is to pave the way for the creation of DNA-based robots.

Trolle Linderoth. Poto: Maria Randima, AU Foto

2018.02.08 |

New centre director at iNANO

Deputy centre director Trolle Linderoth has been appointed new centre director at iNANO as of 1 February 2018.

Science and Technology is inviting former students and employees to Alumni Day on 5 April. Alumni Day is an opportunity to meet old student friends and to network with others with the same academic interests. This picture is from an alumni event at Aarhus BSS. Photo: Lars Kruse

2018.02.09 |

Stronger efforts to preserve contact with alumni

Science and Technology is currently sending out 25,000 invitations to former students and employees to become members of the Aarhus University's alumni network and to take part in the Science and Technology Alumni Day on 5 April 2018.

Biologist Stine Højlund Pedersen measures the temperature down through one of the collected ice cores. (Photo: Kasper Hancke)
The temperature in North-East Greenland may decrease to -20 oC in May so researchers need to be well-dressed when the laboratory is located on the surface of the sea ice. (Photo: Kasper Hancke)
The researchers have to transport their equipment to the ice from Villum Research Station with snowmobiles. (Photo: Stine Højlund Pedersen)
A small tent on the ice acts as a mini-laboratory. Here, biologist Kasper Hancke measures photosynthesis of the ice algae. (Photo: Stine Højlund Pedersen)

2017.12.08 |

Sea ice algae bloom in the dark

Researchers from Aarhus University have measured a new world record: Small ice algae on the underside of the Arctic sea ice live and grow at a light level corresponding to only 0.02% of the light at the surface of the ice. Algae are the primary component of the Arctic food web and produce food far earlier in the year than previously thought.

2018.02.06 |

New Nordic Consortium for CO2 conversion

iNANO and Department of Chemistry at Aarhus University are participating in a new Nordic research hub that will focus on developing new materials and technologies for conversion of CO2. The hub has been granted 6,9 million EUR.

2018.02.06 |

Nicotinamide Riboside – a new promising treatment against Alzheimer’s Disease

By treating different mouse models of Alzheimer’s disease with a precursor of NAD+, which is a central coenzyme in the metabolism of the cell, an international research team might have found a drug that can be used as treatment against Alzheimer’s disease. Treatment of Alzheimer’s disease mice improved their neuronal function, memory and learning…

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