Dinosaurs may have influenced evolution of human aging The genetic foundations of the human aging process may have evolved from the pressure that dinosaurs put on mammals 100 million years ago. “While humans are among the longest-living animals, there are many reptiles and other animals that have a much slower aging process and show minimal […]
In probability theory and statistics, a collection of random variables is independent and identically distributed (iid) if each random variable has the same probability distribution as the others and all are mutually independent. Most supervised machine learning methods assume that training and testing or production samples are drawn iid from the same underlying distribution. But […]
Hopfions, magnetic spin structures predicted decades ago, have become a hot and challenging research topic in recent years. The first experimental evidence has just been presented in Nature . A deeper understanding of how different components of materials function is important for the development of innovative materials and future technology. The research field of spintronics […]
Phagocytosis Author: Marta Irigoyen is a postdoctoral researcher at CIC bioGUNE Phagocytosis of cancer cells by tumor-associated macrophages (TAMs), which are abundant in the tumor microenvironment (TME), plays a critical role in cancer immunosurveillance . Cancer cells can evade macrophage-mediated phagocytosis (the process by which a cell uses its plasma membrane to engulf particles or […]
early galaxy problem Author: Rajendra Gupta, Adjunct professor, Physics, L’Université d’Ottawa/University of Ottawa Early universe observations by the James Webb Space Telescope (JWST) cannot be explained by current cosmological models. These models estimate the universe to be 13.8 billion years in age, based on the big-bang expanding universe concept. My research proposes a model that […]
Cell division, or mitosis, is a breathtaking choreography that showcases the grandeur of life. The primary objective of this process is to meticulously separate the two copies of the cell genome, presented in the form of chromatin, and allocate them between two daughter cells. Consequently, it holds paramount significance for the reproduction of unicellular organisms […]
Purple bronze Scientists have discovered a rare phenomenon that could hold the key to creating a ‘perfect switch’ in quantum devices which flips between being an insulator and superconductor. The research found these two opposing electronic states exist within lithium molybdenum purple bronze, a unique one-dimensional metal composed of individual conducting chains of atoms. Tiny […]
words Author: Juan F. Trillo, PhD in Linguistics and Philosophy (U. Autónoma de Madrid), PhD in Literary Studies (U. Complutense de Madrid). The first word of the Preamble to the Constitution of the United States is “ We “, a personal pronoun belonging to the category of function words and, as such, ambiguous, which is […]
Chemical contamination of water bodies on one hand, and water shortages due to overexploitation on the other, have increased the need for effective and efficient water treatment and decontamination processes. Two important aspects need to be taken into consideration to define what is an “effective and efficient” treatment. First, as current methods of removing pathogens […]
In the largest survey of its kind ever conducted researchers from the University of Copenhagen firmly established a fivefold increase in the melting of Greenland ‘s glaciers over the last 20 years. Using both satellite imagery and old aerial photos from the Danish National Archives, researchers from the University of Copenhagen firmly establish that Greenland’s […]