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QINGDAO TODAY
在线翻译:
szdaily -> Shenzhen -> 
Scientists’ articles published in Nature, Science
    2020-05-07  08:53    Shenzhen Daily

Chris Edwards, Han Ximin

ximhan@126.com

THREE scientists from local universities, two with Southern University of Science and Technology (SUSTech) and one from Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), have had research articles published in the latest edition of Science and Nature, two world leading science magazines.

In the article “Plant 22-nt siRNAs mediate translational repression and stress adaptation” published in Nature on April 29 by the multinational team led by Chair Professor Guo Hongwei with SUSTech, identified a large number of endogenous 22nt siRNAs (small interfering RNAs) in mutants, which revealed an essential biological function in the model plant, Arabidopsis.

It measured stress adaptability and translation inhibition, representing a breakthrough in small RNA in plants. It is an advance on their previous work published in Science in 2015.

RNA interference regulates the target RNA gene through small pieces of RNA that tend to be between 21-24 nucleotides (nt) long. Small RNAs, such as miRNAs (micro RNAs) and siRNAs, are essential for animal and plant growth. Each plant’s small RNA has a different length, with the length determining the biological function.

Ground-breaking research published in Science on April 30 and led by Associate Professor Liu Weishu with SUSTech has found that gelatin could be used to power devices in the future, using only the heat generated from the human body.

The paper was published online titled “Giant thermopower of ionic gelatin near room temperature” focused on the exploring of new thermoelectric materials near room temperature, which utilize the Seebeck effect to convert thermal energy to electrical energy.

The paper published in Science is a reflection of many years of hard work. The gelatin in question is a high-molecular substance that is found in bones. It is sought after by chefs in a wide range of cuisines while also being an essential raw material for several industrial applications.

“The experimental discovery of the giant thermoelectric effect brought us joy and then many questions. Professor Chen Gang with MIT provided us with the essential guidelines to answer each question one by one. It also allowed us to realize the truth about the joy of research: Never give up your exploring, as it is all about your dream. You need to keep searching until you get the truth, to find new knowledge,” Liu said.

The article “Population Flow Drives Spatio-Temporal Distribution of COVID-19 in China” published in Nature on April 29 led by Jia Jianmin, professor with CUHK-Shenzhen, uses mobile-phone-data-based counts of 11.47 million people egressing or transiting through Wuhan between Jan. 1 and 24, as they moved to 296 cities throughout China.

The team developed a spatio-temporal risk source model and used this model to derive the geographic spread of COVID-19 and the growth pattern based on the population outflow from Wuhan.

The model yields a benchmark trend and an index for assessing COVID-19 community transmission risk in any nation with available data to make rapid and accurate risk assessments and to plan allocation of limited resources ahead of ongoing outbreaks.

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