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Categories: Mathematics: Modeling, Offbeat: Paleontology and Archeology
Published Ancient Siberian genomes reveal genetic backflow from North America across the Bering Sea


The movement of people across the Bering Sea from North Asia to North America is a well-known phenomenon in early human history. Nevertheless, the genetic makeup of the people who lived in North Asia during this time has remained mysterious due to a limited number of ancient genomes analyzed from this region. Now, researchers describe genomes from ten individuals up to 7,500 years old that help to fill the gap and show geneflow from people moving in the opposite direction from North America to North Asia.
Published Computer models determine drug candidate's ability to bind to proteins


Combing computational physics with experimental data, researchers have developed computer models for determining a drug candidate's ability to target and bind to proteins within cells.
Published Origins of the building blocks of life


A new study posits that interstellar cloud conditions may have played a significant role on the presence of key building blocks of life in the solar system.
Published Project aims to expand language technologies


Only a fraction of the 7,000 to 8,000 languages spoken around the world benefit from modern language technologies like voice-to-text transcription, automatic captioning, instantaneous translation and voice recognition. Researchers want to expand the number of languages with automatic speech recognition tools available to them from around 200 to potentially 2,000.
Published DNA from archaeological remains shows that immigration to Scandinavia was exceptional during the Viking period


A new study based on 297 ancient Scandinavian genomes analysed together with the genomic data of 16,638 present day Scandinavians resolve the complex relations between geography, ancestry, and gene flow in Scandinavia -- encompassing the Roman Age, the Viking Age and later periods. A surprising increase of variation during the Viking period indicates that gene flow into Scandinavia was especially intense during this period.
Published New approach to epidemic modeling could speed up pandemic simulations


Researchers are employing sparsification, a method from graph theory and computer science, to identify which links in a network are the most important for the spread of disease.
Published Modelling the collective movement of bacteria


A new paper presents a mathematical model for the motion of bacteria that includes cell division and death, the basic ingredients of the cell cycle.
Published Characters' actions in movie scripts reflect gender stereotypes


Researchers have developed a novel machine-learning framework that uses scene descriptions in movie scripts to automatically recognize different characters' actions. Applying the framework to hundreds of movie scripts showed that these actions tend to reflect widespread gender stereotypes, some of which are found to be consistent across time.
Published The other paleo diet: Rare discovery of dinosaur remains preserved with its last meal


Microraptor was an opportunistic predator, feeding on fish, birds, lizards -- and now small mammals. The discovery of a rare fossil reveals the creature was a generalist carnivore in the ancient ecosystem of dinosaurs.
Published Should we tax robots?


A small tax on robots, as well as on trade generally, will help reduce income inequality in the U.S., according to economists.
Published Fossil CSI: Giant extinct marine reptile graveyard was likely ancient birthing grounds


An international research team examines a rich fossil bed in the renowned Berlin-Ichthyosaur State Park in Nevada's Humboldt-Toiyabe National Forest, where many 50-foot-long ichthyosaurs (Shonisaurus popularis) lay petrified in stone. The study offers a plausible explanation as to how at least 37 of these marine reptiles came to meet their ends in the same locality -- a question that has vexed paleontologists for more than half a century. The research presents evidence that these ichthyosaurs died at the site in large numbers because they were migrating to this area to give birth for many generations across hundreds of thousands of years.
Published Study shows how machine learning could predict rare disastrous events, like earthquakes or pandemics


Researchers suggest how scientists can circumvent the need for massive data sets to forecast extreme events with the combination of an advanced machine learning system and sequential sampling techniques.
Published Ancient grammatical puzzle solved after 2,500 years


A grammatical problem which has defeated Sanskrit scholars since the 5th Century BC has finally been solved by a PhD student.
Published Artificial Intelligence searches an early sign of osteoarthritis from an x-ray image


Researchers have developed an AI based neural network to detect an early knee osteoarthritis from x-ray images. AI was able to match a doctors' diagnosis in 87% of cases. The result is important because x-rays are the primary diagnostic method for early knee osteoarthritis. An early diagnosis can save the patient from unnecessary examinations, treatments and even knee joint replacement surgery.
Published Early humans may have first walked upright in the trees


Human bipedalism -- walking upright on two legs -- may have evolved in trees, and not on the ground as previously thought, according to a new study.
Published AI model proactively predicts if a COVID-19 test might be positive or not


A new study shows machine-learning models trained using simple symptoms, demographic features are effective in predicting COVID-19 infections.
Published Fossil site reveals giant arthropods dominated the seas 470 million years ago


Discoveries at a major new fossil site in Morocco suggest giant arthropods -- relatives of modern creatures including shrimps, insects and spiders -- dominated the seas 470 million years ago.
Published Precise solar observations fed millions in ancient Mexico


Without clocks or modern tools, ancient Mexicans watched the sun to maintain a farming calendar that precisely tracked seasons and even adjusted for leap years.
Published Extinct 'monkey lemur' shows similarities to fossil humans


Analysis of teeth of extinct lemurs has revealed fascinating clues to the evolution of humans, a new study has found.
Published Hummingbird flight could provide insights for biomimicry in aerial vehicles


Using a novel modeling method, a team of researchers gained new insights into how hummingbirds produce wing movement, which could lead to design improvements in flying robots.