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Ask Dr. Universe: How do bugs walk on water?

The other day I was out ice skating when I started thinking about your question. Water strider bugs skitter across ponds almost as if they were skating on ice.

I decided to visit my friend Dan Pope to find out how this works. He’s a graduate student at Washington State University who studies chemistry.

“Before talking about water, let’s talk about atoms,” he said.

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Dr. Universe

 

 

Fat in feces points to early presence of colorectal cancer

Herbert Hill
Herbert Hill

Scientists at Washington State University and Johns Hopkins Medical School have discovered a fast, noninvasive method that could lead to the early diagnosis of colorectal cancer.

Using ultrasensitive, high-speed technology, the researchers identified a suite of molecules in the feces of mice that signifies the presence of precancerous polyps.

This “metabolic fingerprint” matches changes in both mouse and human colon tumor tissues and suggests a potential new diagnostic tool for early detection of colorectal cancer in a clinical setting.

Herbert Hill, WSU Regents professor of chemistry, and graduate student Michael Williams conducted the study in collaboration with Raymond Reeves, WSU School of Molecular Biosciences, and Linda Resar, Johns Hopkins University School of Medicine.

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WSU News

Nature World News

Science Magazine

News Medical

Medical Xpress

Health Canal

Business Standard

SifyNews

Science Blog

Colon Cancer News Today

Institute promotes nuclear science research, collaboration

Aurora Clark
Aurora Clark

The new Institute for Nuclear Science and Technology (INST) will bring together diverse scientists and researchers at Washington State University to address global challenges in security, human health, energy and environmental quality.

“At a national level, one of the major research problems in nuclear science and technology is that experts working on one specific type of problem often are isolated from colleagues working in other areas,” said Aurora Clark, professor of chemistry and director of the institute.

Approved by the WSU Board of Regents in September, INST includes faculty from three colleges and will enable creative solutions to challenges in radioecology, nuclear energy, nuclear medicine and nuclear policy.

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WSU News

PNNL gives students hands-on experience

Many of us remember writing that dreaded essay about how we spent our summer vacation — often struggling to recall what we did or make it sound interesting.

That won’t be a problem for the almost 800 students at the Department of Energy’s Pacific Northwest National Laboratory this summer.

Tenisha Meadows, a graduate student in chemistry at WSU, is working to understand conditions that affect the processing of legacy tank waste at places like Hanford. She is using a scientific measurement technique called spectroscopy to observe what is happening inside the tank. This data will improve predictions of when certain solids will form, which in turn helps us understand the correlation between material characteristics and process history.

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Tri-City Herald

Illuminating sulfides’ roles in the body

Ming Xian
Ming Xian

For the first time, researchers at Washington State University have created an injectable compound or “probe” that illuminates hydrogen sulfide and hydrogen polysulfides in different colors when they are present in cells.

Hydrogen sulfide and hydrogen polysulfides are gases notorious as the source of rotten egg stench. They are produced and used for a wide variety of processes in the body. They are thought to play a role in aging as well as diabetes, Alzheimer’s, heart attack, cancer and many other diseases, but their precise functions remain a mystery.

The new probe, developed by WSU chemistry professor Ming Xian, will give medical researchers the ability to start identifying the functions each gas plays in specific biological processes, such as inflammation in the heart or the buildup of tumor cells, which could eventually lead to the design of new drugs and medical therapies.

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WSU News

Phys.org