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News Archive - Kim McDonald

Nanomaterial Self-Assembly Imaged in Real Time

June 8, 2015

A team of researchers from UC San Diego, Florida State University and Pacific Northwest National Laboratories has for the first time visualized the growth of “nanoscale” chemical complexes in real time, demonstrating that processes in liquids at the scale of one-billionth of a meter can be documented as they happen.

Tiny Parasite May Contribute to Declines in Honey Bee Colonies by Infecting Larvae

May 27, 2015

Biologists at UC San Diego have discovered that a tiny single-celled parasite may have a greater-than expected impact on honey bee colonies, which have been undergoing mysterious declines worldwide for the past decade.

New Genetic Method Promises to Advance Gene Research and Control Insect Pests

March 19, 2015

Biologists at the University of California, San Diego have developed a new method for generating mutations in both copies of a gene in a single generation that could rapidly accelerate genetic research on diverse species and provide scientists with a powerful new tool to control insect borne diseases such as malaria as well as animal and plant pests.

Study Sheds Light on What Causes Cells to Divide

December 24, 2014

When a rapidly-growing cell divides into two smaller cells, what triggers the split? Is it the size the growing cell eventually reaches? Or is the real trigger the time period over which the cell keeps growing ever larger? A novel study published online today in the journal Current Biology has finally provided an answer to this long unsolved conundrum. And it’s not what many biologists expected.

Physicists Solve Longstanding Puzzle of How Moths Find Distant Mates

October 20, 2014

Physicists have come up have with a mathematical explanation for moths’ remarkable ability to find mates in the dark hundreds of meters away.

Moderate Levels of ‘Free Radicals’ Found Beneficial to Healing Wounds

October 13, 2014

Long assumed to be destructive to tissues and cells, “free radicals” generated by the cell’s mitochondria—the energy producing structures in the cell—are actually beneficial to healing wounds. That’s the conclusion of biologists at UC San Diego who discovered that “reactive oxygen species”—chemically reactive molecules containing oxygen, such as peroxides, commonly referred to as free radicals—are necessary for the proper healing of skin wounds in the laboratory roundworm C. elegans.

New Genetic ‘Operating System’ Facilitated Evolution of ‘Bilateral’ Animals

September 30, 2014

The evolution of worms, insects, vertebrates and other “bilateral” animals—those with distinct left and right sides—from less complex creatures like jellyfish and sea anemones with “radial” symmetry may have been facilitated by the emergence of a completely new "operating system" for controlling genetic instructions in the cell.

Four UC San Diego Teams Win NIH Grants from Obama’s BRAIN Initiative

September 30, 2014

Four teams of scientists at UC San Diego will receive research grants from the National Institutes of Health that will help lay the groundwork for visualizing the circuits of the brain and how they work, the agency announced at a White House ceremony today.

Four UC San Diego Faculty Win ‘Early Concept’ Grants from Obama’s BRAIN Initiative

August 18, 2014

Four scientists at UC San Diego are among 36 recipients nationwide who have been awarded early concept grants for brain research from the National Science Foundation, the agency announced today.

Study Suggests Disruptive Effects of Anesthesia on Brain Cell Connections Are Temporary

July 28, 2014

A study of juvenile rat brain cells suggests that the effects of a commonly used anesthetic drug on the connections between brain cells are temporary.
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