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The Cell Phone: A History The cell phone is one of the most revolutionary inventions of the modern era. Since the first commercially available cell phone was released in 1983, the device has changed the way we communicate and stay connected. From the first brick-sized mobile phones to today's sleek, pocket-sized versions, the cell phone has gone through numerous iterations over the past three decades. In this article, we take a look back at the history of the cell phone and the various milestones that have defined its evolution.
Predicting evolution in cell populations with a scaling law
A scaling law relates the expected number of mutants to the total population size of cells in a spatially constrained but growing population, which could help clinicians predict when cancers or bacterial infections might develop resistance to treatment.
Uptake of DNA fragments from dying cells could redefine mammalian evolution and genomics
For decades, scientists have known that bacteria can exchange genetic material, in a process called horizontal gene transfer. This allows bacteria to rapidly evolve new traits, such as antibiotic resistance. A new study, led by Professor Indraneel Mittra at the Advanced Center for Treatment, Research & Education in Cancer, Mumbai, shows that this process may also happen in mammals—through fragments of DNA known as cell-free chromatin particles.
Programmed cell death in microalgae resembles that in humans
For the first time, researchers at Umeå University have observed the same type of programmed cell death in microalgae as in humans. The discovery, published in Nature Communications, shows that this central biological process is older than previously thought.