Earth

Do all networks obey the scale-free law? Maybe not

March 4, 2019

As Benjamin Franklin once joked, death and taxes are universal. Scale-free networks may not be, at least according to a new study from CU Boulder. The research challenges a popular two-decade-old theory that networks of all kinds, from Facebook and Twitter to the interactions of genes in yeast cells, follow...

Data

Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use.

Jan. 13, 2019

Tobacco and alcohol use are leading causes of mortality that influence risk for many complex diseases and disorders 1 . They are heritable 2,3 and etiologically related 4,5 behaviors that have been resistant to gene discovery efforts 6-11 . In sample sizes up to 1.2 million individuals, we discovered 566 genetic...

Human

Research here could speedup clinical trials around Type 1 diabetes

Dec. 5, 2018

Researchers at CU Boulder have developed virtual clinical trials for an artificial pancreas that could significantly improve treatments for those with Type 1 diabetes by tailoring medical devices and speeding up trials. The work was done through a four-year, $600,000 award from the National Science Foundation and was headed at...

Boulder researchers found that mycobacteria is the most common bacteria in showerheads - but say showering is still safe.

The slime on your showerhead is ALIVE: Study reveals the horrifying bacteria in your bathroom - and how it could be harming you

Nov. 1, 2018

A study of the bacterial slime in showerheads across the world has found US cities are hotspots for potentially harmful bacteria. Researchers found that mycobacteria is the most common bacteria in showerheads. They found it is far more prevalent in the United States than in Europe, thrives more in municipal...

Photographs of the authors, Smith (left) and Safran (right)

Barn swallows may indeed have evolved alongside barns, humans

Oct. 29, 2018

As humans evolved and expanded, so too did barn swallows, new research from CU Boulder suggests The evolution of barn swallows, a bird ubiquitous to bridges and sheds around the world, might be even more closely tied to humans than previously thought, according to new study from the University of...

Schematic illustration of the recursive unfolding setup for the model predictive control optimization problem.

Robust Data-Driven Control of Artificial Pancreas Systems Using Neural Networks

Aug. 23, 2018

In this paper, we provide an approach to data-driven control for artificial pancreas systems by learning neural network models of human insulin-glucose physiology from available patient data and using a mixed integer optimization approach to control blood glucose levels in real-time using the inferred models. First, our approach learns neural...

Ants Traffic Flow

Collective clog control: Optimizing traffic flow in confined biological and robophysical excavation

Aug. 16, 2018

Groups of interacting active particles, insects, or humans can form clusters that hinder the goals of the collective; therefore, development of robust strategies for control of such clogs is essential, particularly in confined environments. Our biological and robophysical excavation experiments, supported by computational and theoretical models, reveal that digging performance...

Oikos

Pollinator‐mediated mechanisms for increased reproductive success in early flowering plants

July 3, 2018

Mating activities change within a season in many animal and plant populations. In plants, selection towards early flowering is commonly observed. Pollinator‐mediated selection is hypothesized to be a pervasive evolutionary force acting directionally on flowering time. However, pollinator‐mediated mechanisms have rarely been tested in realistic field conditions, especially in perennial...

SIAM

Investigation of a Structured Fisher's Equation with Applications in Biochemistry

June 18, 2018

Recent biological research has sought to understand how biochemical signaling pathways, such as the mitogen-activated protein kinase (MAPK) family, influence the migration of a population of cells during wound healing. Fisher's equation has been used extensively to model experimental wound healing assays due to its simple nature and known traveling...

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