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Scientists decode black widow spider venom
Life Sciences - Oct 7
Thanks to these results, researchers now better understand how α-latrotoxin works. "The toxin mimics the function of the calcium channels of the presynaptic membrane in a highly complex way," explains Christos Gatsogiannis. "It therefore differs in every respect from all previously known toxins." The new findings open up a wide range of potential applications; latrotoxins have considerable biotechnological potential, including the development of improved antidotes, treatments for paralysis and new biopesticides.
Life Sciences - Oct 4
The secrets of visual navigation
A new study reveals groundbreaking findings on visual navigation in the brain of the fruit fly Drosophila melanogaster.
Earth Sciences - Oct 4
Toxic gas use among microbes: Battle for iron in the oceans of the early Earth
On the early Earth, the atmosphere did not yet contain oxygen; nevertheless, the iron dissolved in the oceans was oxidized in gigantic quantities and deposited as rock, for example as banded iron ore in South Africa.
Life Sciences - Oct 4
How Cells Recognize and Repair DNA Damage
Genome instability can cause numerous diseases. Cells have effective DNA repair mechanisms at their disposal. A research team at the University of Würzburg has now gained new insights into the DNA damage response.
Chemistry - Oct 4
Innovative catalyst produces methane using electricity
A study by the Universities of Bonn and Montreal opens up new ways to produce important chemical compounds.
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Results 1 - 20 of 314.
Life Sciences - 07.10.2024
Thanks to these results, researchers now better understand how α-latrotoxin works. "The toxin mimics the function of the calcium channels of the presynaptic membrane in a highly complex way," explains Christos Gatsogiannis.
Life Sciences - 04.10.2024
A new study reveals groundbreaking findings on visual navigation in the brain of the fruit fly Drosophila melanogaster An international research team from Freie Universität Berlin and the University of California Santa Barbara has conducted the first systematic analysis of all synaptic connections in the brain of an adult animal in a groundbreaking study.
Life Sciences - Health - 04.10.2024
Genome instability can cause numerous diseases. Cells have effective DNA repair mechanisms at their disposal. A research team at the University of Würzburg has now gained new insights into the DNA damage response. Whenever cells divide, there is a high risk of damage to the genetic material. After all, the cell has to duplicate its entire genetic material and copy billions of genetic letters before it divides.
Earth Sciences - Life Sciences - 04.10.2024
On the early Earth, the atmosphere did not yet contain oxygen; nevertheless, the iron dissolved in the oceans was oxidized in gigantic quantities and deposited as rock, for example as banded iron ore in South Africa. Various bacteria excrete insoluble iron via their own metabolic reactions: Some, the phototrophic iron oxidizers, gain energy by oxidizing the iron with the help of sunlight, and others by converting the iron with nitrate as an oxidizing agent.
Chemistry - Physics - 04.10.2024
A study by the Universities of Bonn and Montreal opens up new ways to produce important chemical compounds Researchers at the University of Bonn and University of Montreal have developed a new type of catalyst and used it in their study to produce methane out of carbon dioxide and water in a highly efficient way using electricity.
Astronomy / Space - Physics - 04.10.2024
Nested morphology of gas streams confirms a mechanism that helps infant stars to grow by ingesting disk material. Planet-forming disks, maelstroms of gas and dust swirling around young stars, are nurseries that give rise to planetary systems, including our solar system. Astronomers have discovered new details of gas flows that sculpt and shape those disks over time.
Earth Sciences - 01.10.2024
International research team led by Göttingen University identifies new model to explain amethyst formation Amethyst is a violet variety of quartz which has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz crystals, such as amethyst, inside.
Earth Sciences - 01.10.2024
International research team led by the University of Göttingen develops new model Amethyst is a type of purple quartz that has been used as a gemstone for many centuries and is an important economic resource in northern Uruguay. Geodes are hollow rock formations that often contain quartz crystals. Amethyst geodes in Uruguay are found in cooled lava flows that originate from the break-up of the supercontinent Gondwana around 134 million years ago.
Computer Science - Earth Sciences - 01.10.2024
Many areas in North Rhine-Westphalia are paved over by impervious surfaces such as roads, housing estates and industrial sites. While this is obvious from aerial photographs, it is difficult to analyze. In accordance with the German Sustainability Strategy, new impervious surfaces are to be limited to less than 30 hectares per day nationwide.
Health - Life Sciences - 01.10.2024
Bonn researchers reclassify leading gene variants, a large proportion of them as benign The genetic confirmation of a suspected diagnosis of "hereditary colorectal cancer" is of great importance for the medical care of affected families. However, many of the variants identified in the known genes cannot yet be reliably classified in terms of their causal role in tumor formation.
Life Sciences - Environment - 30.09.2024
In a recent study, researchers from the Leibniz Institute of Photonic Technology (Leibniz IPHT) and the Friedrich Schiller University Jena have shown how they can investigate the growth and interactions of the green algae "Ulva" and its bacterial community non-invasively and non-destructively using Raman spectroscopy.
Environment - 27.09.2024
A recent study challenges previous assumptions about the connection between CO2 in the atmosphere and temperatures in the tropics. Between 1959 and 2011, the CO2 content in the atmosphere responded twice as strongly to temperatures in the tropics than before. This has often been attributed to increasing droughts in the tropics and to changes in carbon cycle responses caused by climate change.
Life Sciences - Physics - 26.09.2024
The study of metabolism in living plants poses challenges for science. A research team from Leipzig and Würzburg has now developed a technique that changes this in some areas. The "omics" technologies - genomics, transcriptomics, proteomics, and metabolomics - are at the forefront of discovery in modern plant science and systems biology.
Life Sciences - Health - 26.09.2024
’Pause Button’ in Human Development
Researchers at the Max Planck Institute for Molecular Genetics in Berlin (MPIMG) and the Institute of Molecular Biotechnology (IMBA) of the Austrian Academy of Sciences in Vienna have discovered a potential "pause button" in the earliest stages of human development. Whether humans can control the timing of their development has long been debated.
Health - Life Sciences - 26.09.2024
Bonn researchers use nanobodies to elucidate pore formation by gasdermin D in cell membranes The formation of pores by a particular protein, gasdermin D, plays a key role in inflammatory reactions. During its activation, an inhibitory part is split off. More than 30 of the remaining protein fragments then combine to form large pores in the cell membrane, which allow the release of inflammatory messengers.
Criminology / Forensics - 26.09.2024
Morals influence whether police encounters deter young offenders
Police encounters do deter young offenders. The more often the police detect them, the more risk-aware they become, and the more likely they are to abstain from criminal activities. However, this is not equally true for all'adolescents, but particularly for young people with low morals. These are the results of a recently published study led by Florian Kaiser, a researcher at the Max Planck Institute in Freiburg im Breisgau, which will play an important role in shaping police work.
Health - Life Sciences - 25.09.2024
How AI is helping to bridge the research gap between animals and humans
Transferring knowledge from animal experiments to humans remains a key challenge in medical research. This 'translational gap' is often an obstacle to the successful translation of promising preclinical findings into clinical applications. In a joint research project between Leipzig University and Charité - Universitätsmedizin Berlin, scientists have used artificial intelligence to develop an approach that compares the molecular mechanisms of COVID-19 disease in humans and animals.
Life Sciences - 25.09.2024
Heidelberg researchers identify biological mechanism that protects against, but can also trigger, errors in the genome Certain developmental signals shape not only the human embryo but also play a significant role in maintaining our genetic blueprints. They prevent alterations in the genome, known as mosaicism.
Social Sciences - 25.09.2024
A new study examines how extreme temperatures in the United States significantly affect mortality among different racial groups and found that both cold and hot days increase mortality rates, with the latter disproportionately affecting underrepresented populations. In particular, Non-Hispanic Blacks experienced higher excess mortality on hot days compared to Whites.
Linguistics / Literature - 24.09.2024
A new study shows that word-initial consonants are systematically lengthened across a diverse sample of languages Speech consists of a continuous stream of acoustic signals, yet humans can segment words from each other with astonishing precision and speed. To find out how this is possible, a team of linguists has analysed durations of consonants at different positions in words and utterances across a diverse sample of languages.
