Males that face tougher competition for females risk having offspring with a greater number of harmful mutations in their genome than males without rivals. Researchers at Uppsala University have discovered this correlation in the beetle species Callosobruchus maculatus. Their study is published in the scientific journal Nature Ecology & Evolution.
Scientists at Uppsala University have proposed an addition to the theory of evolution that can explain how and why genes move on chromosomes. The hypothesis, called the SNAP Hypothesis, is presented in the scientific journal PLOS Genetics.
In a future where most things in our everyday life are connected through the internet, devices and sensors will need to run without wires or batteries. In a new article in Chemical Science, researchers from Uppsala University present a new type of dye-sensitised solar cells that harvest light from indoor lamps.
Researchers at Uppsala University and the University of Leeds presents a new mathematical model of patterns of diversity in the fossil record, which offers a solution to Darwin’s “abominable mystery” and strengthens our understanding of how modern groups originate. The research is published in the journal Science Advances.
Bad News, a game devised to make players better at spotting fake news and misinformation, has the intended effect in Sweden, Greece, Germany and Poland. This is evident from a new academic study from the Universities of Uppsala and Cambridge. The assessment shows an improvement in players’ ability to detect fabricated news reports while retaining their trust in real news.
An improved method for reading and interpreting genomes from organisms that are difficult to investigate has been developed at Uppsala University. A team of researchers, led by Dr Anna Rosling, has applied this method to decipher the genetic information of fungi present in the environment, which can be relevant, for example, for plant growth.
Antibiotic-resistant tuberculosis is a common and serious problem globally. In a new article, researchers from Uppsala University describe how tuberculosis bacteria that carries a mutation that in theory should kill them manages to stay alive. The researchers discovered that the same trick that kept the bacteria alive also made them resistant to a very important type of antibiotic.
Uppsala researchers have developed a new method for investigating dynamic processes in large genetic libraries. By using this method to study cell cycle regulation, they help paint a clearer picture of the elusive control mechanism. The study is published in the journal Nature Methods.
The problem of access to safe drinking water in most parts of Bangladesh is a persistent challenge. Now, a team of scientists shows that a locally growing and previously unexploited green macroalgae species could be used to extract cellulose nanofibers, which can then be formed into paper sheets with tailored pore size that are utilized for point-of-use water treatment.
For the first time, researchers have demonstrated the creation of a beam of nanodroplets capable of delivering a variety of biological samples, from cell organelles to single proteins, virtually free from any contaminations, to the focus of an X-ray laser which can be used to image them.
When antibiotics are used to treat bacteria susceptible to them, the treatment usually works. Nevertheless, the antibiotic chosen is sometimes ineffective. One of the reasons for this is heteroresistance, a phenomenon explored in depth by Uppsala and Emory University researchers in a new study.
Coprolites, or fossil droppings, of the dinosaur-like archosaur Smok wawelski contain lots of chewed-up bone fragments. This led researchers at Uppsala University to conclude that this top predator was exploiting bones for salt and marrow, a behavior often linked to mammals but seldom to archosaurs.
What do we need to be able to store carbon dioxide in bedrock and thereby reduce the human impact on the global climate? At the Celsius-Linnaeus lectures on 7 February, geologist Martin Blunt and microbiologist and toxicologist Linda S. Birnbaum will present research findings on some of the biggest challenges facing humanity.
Around 56 million years ago, global temperatures spiked. Researchers at Uppsala University and in the UK now show that a major explosive eruption from the Red Hills on the Isle of Skye may have been a contributing factor to the massive climate disturbance. Their findings have been published in the journal Scientific Reports.
Uppsala University researchers have devised a new model for the Universe – one that may solve the enigma of dark energy. Their new article, published in Physical Review Letters, proposes a new structural concept, including dark energy, for a universe that rides on an expanding bubble in an additional dimension.
The critically endangered Grauer’s gorilla has recently lost genetic diversity and has experienced an increase in harmful mutations. These conclusions were reached by an international team of researchers who sequenced eleven genomes from eastern gorilla specimens collected up to 100 years ago, and compared these with genomes from present-day individuals. Results are published in Current Biology.
For nearly 100 years biologists have argued about how exactly natural selection can possibly work. If nature selects the individuals with the best genes then why aren’t all organisms the same? Recent findings made at Uppsala University suggest that the answer could be sex.
During the Triassic period mammal-like reptiles called therapsids co-existed with ancestors to dinosaurs, crocodiles, mammals, pterosaurs, turtles, frogs, and lizards. Researchers at Uppsala University in Sweden, together with colleagues in Poland, have discovered fossils from a new genus of gigantic dicynodont. The new species Lisowicia bojani is described in the journal Science.
When deciding not to resuscitate patients in cardiac arrest, ethical issues arise. Nurses and physicians conflicting perspectives often cause frustration. In a new doctoral thesis from Uppsala University, Mona Pettersson examines clinical and ethical perspectives on “DNR orders” in cancer care.
In a new article published in Nature an international research team presents high-resolution images of photosystem II, the protein complex that splits water into hydrogen ions and oxygen during photosynthesis. The images will help researchers better understand this complex mechanism, possibly opening up the door to developing cheap and efficient solar fuel devices.
