Tag Archives: growth

The role of low-volatility organic compounds in initial particle growth in the atmosphere

About half of present-day cloud condensation nuclei originate from atmospheric nucleation, frequently appearing as a burst of new particles near midday. Atmospheric observations show that the growth rate of new particles often accelerates when the diameter of the particles is between one and ten nanometres. In this critical size range, new particles are most likely to be lost by coagulation with pre-existing particles, thereby...

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Reductive carboxylation supports redox homeostasis during anchorage-independent growth

Cells receive growth and survival stimuli through their attachment to an extracellular matrix (ECM). Overcoming the addiction to ECM-induced signals is required for anchorage-independent growth, a property of most malignant cells. Detachment from ECM is associated with enhanced production of reactive oxygen species (ROS) owing to altered glucose metabolism. Here we identify an unconventional pathway that supports redox homeostasis and growth during adaptation to...

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Valve deploys 100Gbps Internet ports to handle 75% traffic growth

Steam's most recent usage data. (credit: Valve)

Valve is upgrading its network infrastructure with 100Gbps Internet ports to keep pace with big traffic growth. The news came in an announcement yesterday from Valve's network operator, Level 3 Communications. The press release exists mainly to promote Level 3's network, but it provides some details about Valve's massive bandwidth needs.

Steam's traffic...

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FOXO1 couples metabolic activity and growth state in the vascular endothelium

Endothelial cells (ECs) are plastic cells that can switch between growth states with different bioenergetic and biosynthetic requirements. Although quiescent in most healthy tissues, ECs divide and migrate rapidly upon proangiogenic stimulation. Adjusting endothelial metabolism to the growth state is central to normal vessel growth and function, yet it is poorly understood at the molecular level. Here we report that the forkhead box O...

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