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Researchers unravel mechanisms that control cell size

Working with bacteria, a multidisciplinary team at the University of California San Diego has provided new insight into a longstanding question in science: What are the underlying mechanisms that control the size of cells?

Cell polarity: An aurora over the pole

Even before the fertilised egg or zygote can start dividing into daughter cells that form the future tissues and organs during the development of a multicellular organism, the symmetrical zygote needs to become asymmetrical ...

How host-cell enzymes combat the coronavirus

Host-cell enzymes called PARP12 and PARP14 are important for inhibiting mutant forms of a coronavirus, according to a study published May 16 in the open-access journal PLOS Pathogens by Stanley Perlman of the University of ...

Evolution in the gut

Evolution and dietary habits interact and determine the composition of bacteria in the digestive tract. Many microorganisms in the intestine seem to have developed in sync with their host animals over millions of years.

Cellular rivalry promotes healthy skin development

Not all cells are destined for greatness. Deemed unfit to serve in the body, some are killed off during early development through a process called cell competition. This phenomenon has previously been documented in flies ...

How egg cells choose their best powerhouses to pass on

Developing egg cells conduct tests to select the healthiest of their energy-making machines to be passed to the next generation. A new study in fruit flies, published online May 15 in Nature, shows how the testing is done.

Overfed bacteria make people sick

Since the end of the Second World War, along with the growing prosperity and the associated changes in lifestyle, numerous new and civilisation-related disease patterns have developed in today's industrialised nations. Examples ...

Symbionts as lifesavers

When people fall ill from bacterial infection, the first priority is to treat the disease. But where do these pathogens come from, and how do they thrive in the environment before the infection occurs? An international team ...

Newly identified bacteria-killing protein needs vitamin A to work

People who have inadequate vitamin A in their diets are more susceptible to skin infection, yet how that vitamin affects skin immunity has been unclear. In a study published today, UT Southwestern researchers shed some light ...

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After the Moon, people on Mars by 2033... or 2060
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Manipulating atoms one at a time with an electron beam
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Record-shattering underwater sound
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Machine learning speeds modeling of experiments aimed at capturing fusion energy on Earth
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Extraordinarily transparent compact metallic metamaterials
Evolution
Earliest evidence of the cooking and eating of starch
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Sedimentary, dear Johnson: Is NASA looking at the wrong rocks for clues to Martian life?
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Nanoscale sculpturing leads to unusual packing of nanocubes
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Ultra-clean fabrication platform produces nearly ideal 2-D transistors
Polymers
Polymers jump through hoops on pathway to sustainable materials
Biochemistry
Metals influence C-peptide hormone related to insulin
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Scientists find 'molecular destruction code' for enzyme involved in cholesterol production
Optics & Photonics
NIST team demonstrates heart of next-generation chip-scale atomic clock
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A 'high-heeled' dinosaur that walked on its tiptoes
Plants & Animals
How one fern can soak up so much arsenic—and not die
Biotechnology
New computer program can help crack precision medicine
Quantum Physics
Single molecule magnet used as a scanning magnetometer
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'Ant bridge'-inspired nanoparticle assembly fixes broken electrical circuits
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Magnetic nanoparticles ease removal of microcontaminants from wastewater
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Climate a driver of language diversity