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University of Freiburg


Results 21 - 40 of 51.


Environment - Agronomy / Food Science - 20.04.2022
Bumblebees' nutrition influences their pesticide resistance
Bumblebees’ nutrition influences their pesticide resistance
Effects of a common fungicide differ depending on the plant to which it is applied How susceptible bumblebees are to a common fungicide depends on the flowering plants to which it is applied on and how diverse the food supply is that is available to the insects. Monocultures can increase the insects' sensitivity to the fungicide or generally have negative effects on health, growth and fertility.

Innovation - Materials Science - 19.04.2022
New process enables 3D printing of small and complex components made of glass in just a few minutes
New process enables 3D printing of small and complex components made of glass in just a few minutes
Scientists combine materials science invention with newly developed 3D printing technology Because of its outstanding transparency as well as its stability in contact with heat or chemicals, glass is relevant for many high-tech applications. However, conventional processes for shaping glass are often tedious, energy-intensive and quickly reach their limits for small and complicated components.

Physics - 13.04.2022
Rotating blue laser light reveals unimagined dynamics in living cells
Rotating blue laser light reveals unimagined dynamics in living cells
Using a novel laser-scanning microscope scientists observe processes in cells changing within milliseconds When cities transform into a colorful world of lights as darkness falls, it's often only possible to estimate their contours, which depending on the perspective can draw the attention to key details or trivia.

Health - 08.04.2022
Insights into the dynamic ultrastructure of the heart
Insights into the dynamic ultrastructure of the heart
Researchers publish work on the three-dimensional structure of the heart What happens below the cellular level when the heart contracts and relaxes has long been unexplored. Thanks to new ultra-high-resolution electron microscopy techniques, scientists can now watch the heart beating - almost at a molecular level.

Life Sciences - 30.03.2022
Proteins control light-induced seed germination in Arabidopsis thaliana
Proteins control light-induced seed germination in Arabidopsis thaliana
Freiburg biologists study the light signaling pathways in plants The seeds of a plant are relatively well protected against harmful environmental influences, while a seedling is very vulnerable. Therefore, plants in the early stage of development must closely control their seed germination: In time windows with good conditions they germinate very quickly, while in unfavorable conditions they effectively suppress seed germination.

Health - Life Sciences - 18.03.2022
Lung Tissue from the Lab
Lung Tissue from the Lab
Organoids could be used in diagnosis, drug development, and fundamental research Laboratory studies of lung tissue usually require the removal of large amounts of human or animal tissue. Now scientists from the University of Freiburg's Faculty of Medicine have succeeded in collaboration with American researchers in generating tiny quantities of lung tissue, so-called organoids, from just a few body cells in the lab.

Physics - Chemistry - 16.03.2022
Complex pathways influence time delay in ionization of molecules
Complex pathways influence time delay in ionization of molecules
Study shows how the mechanism of photoionization can be used to gain insights into complex molecular potentials How can researchers use the mechanism of photoionization to gain insight into complex molecular potential? This question has now been answered by a team led by Giuseppe Sansone from the Institute of Physics at the University of Freiburg.

Astronomy / Space Science - 28.02.2022
New finding in astronomy: black hole spins on its side
New finding in astronomy: black hole spins on its side
International team with Freiburg participation discovers unexpected incline of a black hole. Scientist Svetlana Berdyugina, Professor of Astrophysics at the University of Freiburg and Director of the Leibniz Institute for Solar Physics (KIS), together with an international team of astronomers, has reliably measured for the first time a large difference between the rotation axis of the black hole and the axis of the orbit of the binary star system named MAXI J1820+070.

Life Sciences - 22.02.2022
Better understanding communication between neurons in the brain
Better understanding communication between neurons in the brain
Researchers at the University of Freiburg develop a new method for controlled interrogation and recording of neuronal activity In the field of optogenetics, scientists investigate the activity of neurons in the brain using light. A team led by Ilka Diester and Dr. David Eriksson from the Optophysiology Laboratory at the University of Freiburg has developed a new method to simultaneously conduct laminar recordings, multifiber stimulations, 3D optogenetic stimulation, connectivity inference, and behavioral quantification on brains.

Health - Pharmacology - 17.02.2022
New organ-on-chip system enables precise monitoring of 3D tumour tissue outside the body
New organ-on-chip system enables precise monitoring of 3D tumour tissue outside the body
3D tissue structures on the chip act as organs in miniature A research team around Andreas Weltin, Dr. Jochen Kieninger and Johannes Dornhof from the Department of Microsystems Engineering (IMTEK) at the University of Freiburg has developed a system that, among other things, makes it possible to study the development of tumour cells outside the human body in a three-dimensional environment.

Life Sciences - 15.02.2022
How Embryo Cells Gain Independence
How Embryo Cells Gain Independence
Freiburg researchers elucidate how signaling molecules from the mother give the starting signal for gene expression in their offspring It happens in the first hours after fertilization: The cells of the early embryo begin to independently produce proteins, the building blocks for cells and organs. Their own, uniquely composed genetic material serves as the blueprint.

Environment - 14.02.2022
Effect of Forest Management on the Mortality of Beech Trees in Years of Drought 2018/19
Effect of Forest Management on the Mortality of Beech Trees in Years of Drought 2018/19
Research team studied elevenHessian natural forest without logging and neighboring commercial forests The extreme drought years of 2018 and 2019 led to the death of numerous forest stands. The effects were not limited to spruce forests, which are generally known to be sensitive, but also extended to beech forests, which are typically considered to be robust, yet also often showed a noticeably sparse foliage and an increased mortality rate.

Life Sciences - 10.02.2022
Mitochondria efficiently adapt to changing metabolic conditions
Mitochondria efficiently adapt to changing metabolic conditions
Freiburg researchers show that two protein complexes can communicate with each other A recent study explains an essential component for proper mitochondrial function: The protein complexes MICOS and ATP synthase can communicate with each other. Dr. Heike Rampelt and Prof. Dr. Nikolaus Pfanner at the Institute of Biochemistry and Molecular Biology of the University of Freiburg have uncovered an important mechanism that ensures efficient metabolic adaptation of mitochondria.

Environment - History / Archeology - 01.02.2022
Reconstruction of the history of mankind Early human settlement on the Arabian Peninsula less influenced by climate than previously thought
Reconstruction of the history of mankind Early human settlement on the Arabian Peninsula less influenced by climate than previously thought
Research team detects early Stone Age settlement during dry periods 210,000 years ago An international team of researchers from the Sharjah Archaeology Authority/United Arab Emirates (UAE) and the Universities of Tübingen and Freiburg as well as Oxford Brookes/England led by Dr. Knut Bretzke from the University of Tübingen and Frank Preusser from the Institute of Earth and Environmental Sciences at the University of Freiburg has uncovered

Life Sciences - Health - 31.01.2022
Protein machinery of respiration becomes visible
Protein machinery of respiration becomes visible
Researchers provide high-resolution electron microscopy analysis of the molecular machinery within the respiratory chain Oxygen and sugar are the basis of life for animals, plants, fungi and many bacteria. The metabolic process called respiration makes it possible to convert food into energy for the cells.

Environment - Life Sciences - 28.01.2022
Human disturbance is the most crucial factor for lynx in habitat selection
A new data analysis provides important information on the habitat selection of these predators Habitat selection in wildlife is a process that occurs at different scales: Balancing advantages, such as high abundance of food, with disadvantages, such as human disturbance. Large predators, with their large spatial requirements, are particularly sensitive to these disturbances.

Life Sciences - Chemistry - 28.01.2022
Artificial Muscles Made of Proteins
A Freiburg research team has developed the first material made of natural proteins that contracts autonomously Dr. Stefan Schiller and Dr. Matthias Huber from the University of Freiburg's liv MatS Cluster of Excellence have succeeded in developing a muscle solely on the basis of natural proteins.

Life Sciences - Chemistry - 18.01.2022
Protein molecules in mitochondria clearly assigned for the first time
Protein molecules in mitochondria clearly assigned for the first time
New findings make it possible to explore in detail the links between defects in mitochondrial proteins and diseases of the cardiovascular and nervous systems Mitochondria are key components of our cells. Cell respiration and control of many metabolic and signalling processes take place within them. In order for the biochemical reactions to take place flawlessly, complex interactions between specialized protein molecules are required.

Life Sciences - Health - 07.01.2011
The Import Business of Cellular Power Plants Freiburg Scientists Reveal Newly Discovered Communication Path in Cells
Scientists from Freiburg's two Excellence Institutions Centre for Biological Signalling Studies (BIOSS) and Spemann Graduate School of Biology and Medicine (SGBM) have discovered a new signaling path in cells: a mechanism which enables the transport of proteins into mitochondria to be adjusted depending on the current metabolic state of the cell.

Life Sciences - Chemistry - 07.01.2011
Proteins Need Chaperones
Freiburg Biochemist Describes Newly Discovered Processes in Production of Proteins in 'Nature' Freiburg, 07. The chaperone ZRF1 helps the ribosome to regulate protein synthesis. A new study shows that it also participates in the regulated translation of DNA segments into transcripts in the nucleus. Young unmarried girls used to be accompanied by chaperones at social events.