Latest News
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UCAS hosts 2023 International Cultural Festival
On October 14th, 2023, a grand international cultural festival occurred at the Yuquanlu Campus of University of Chinese Academy of Sciences (UCAS), marking a resounding success. This event united students from over 30 countries and regions spanning Asia, Europe, and Africa, spotlighting the incredible diversity and global cultural richness. More than 3,000 Chinese and international faculty and students participated with zeal, while live photo streams amassed a staggering 350,000 views, electrifying the atmosphere.
YANG Guoqiang, Vice President of UCAS, honored the gathering with his attendance and inspiring words. He warmly invited all teachers, students, and alumni to partake in the International Cultural Festival in honor of the 45th anniversary of UCAS. YANG delved into the current state of international students at UCAS, acknowledged the institution's significant strides in international student education over the past decade—aligning with the 10th anniversary of "the Belt and Road Initiative"—and called upon young minds worldwide to engage in collective learning, deepen mutual understanding, and champion the vision of "a global community of shared future."
Speech by YANG Guoqiang, Vice President of UCAS
The festival featured a tapestry of cultures as international students proudly presented their countries' unique traditions, landscapes, cuisines, and attire. In harmony with their Chinese counterparts, students from nations like Nepal and Rwanda captivated audiences with riveting folk music and dance. Mike, a student from Rwanda, sang a Chinese song titled Waiting, showcasing his affection for Chinese culture. In an open talent segment, music transcended borders and language divides, stirring a collective vibe of friendship, unity, and joy.
Dances Performed by Nepalese Students
Dances Performed by Rwandan Students
Guzheng Performance by a Chinese Student
A symphony of melodies continuously resonated from the stage while the cultural booths bustled. Attendees eagerly participated in a stamp collection activity, using the "Passports of the International Culture Festival of UCAS" at these booths. This endeavor allowed them to embark on a virtual global journey without leaving the campus. Delights such as Danish beer, Ukrainian pickled ham with black bread, aromatic Ceylon black tea from Sri Lanka, and explorations into why Azerbaijan is dubbed the "Land of Flame" awaited them. A UCAS student on-site remarked that the festival enriched his appreciation for diverse cultures, reinforcing his bond with the notion of a global community of shared future and his cherished institution. An online participant commented, "This immersive journey through various cultures, rich traditions, and historical landscapes has been invigorating. The world is truly fascinating due to its diversity and beauty rooted in inclusivity!"
Bustling Cultural Booths
Stamp Their Cultural Passports at Booths
Colored Painting on Hands
Danish Dessert
Introduction of Local Language and Culture
Display of Traditional Musical Instruments in the Middle East
Crafts at the Cultural Booths
Loaded with Prizes and Gifts
"Civilization flourishes with dialogue, and richness emerges from shared learning." The International Cultural Festival served as a beacon for cultural exchange, allowing students to embrace and express their identities. It crafted a setting where Chinese and international faculty and students reveled in a mutual, inclusive, and open cultural exchange. UCAS became a stage where all faculty and students witnessed the harmonious blending of diverse cultures, forging cross-border friendships and joyously cheering, "Happy birthday to UCAS!". Each smile and interaction epitomized the spirit of global friendship. Regardless of origin, the symphony of cultures can unite us, passing the torch of friendship and shared cultural heritage.
A Group Photo for the Event
Extension: University of Chinese Academy of Sciences (UCAS) officially began admitting international students in 2004. Since the inception of “the Belt and Road Initiative” in 2013, UCAS has made remarkable strides in nurturing international students. Currently, there are 2,004 international students from 99 countries, studying at 96 UCAS colleges and CAS institutes for 100 majors. Those include 1,271 doctoral candidates and 710 master’s students.
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Live photo stream: https://as.alltuu.com/album/1301617704/?from=link&menu=live
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Research News
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Tracing the origin of alveolar stem cells in lung repair and regeneration
In a study published in Cell, the researchers led by Prof. ZHOU Bin from the School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences /the Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences reported the cellular origin of alveolar epithelial stem cells during lung repair and regeneration by using dual recombinases-mediated genetic strategies.
The lungs are important respiratory organs of human beings, and the alveoli are important structures for the function of the lungs. The alveolar epithelium is composed of alveolar type I cells and type II cells, referred to as AT1 and AT2 cells. AT2 cells are the alveolar epithelial stem cells that are not only able to self-renew but also differentiate into daughter cells, AT1 cells.
In multiple lung diseases, AT2 cells could be damaged, so it is important to reveal the origin of AT2 cells after injuries. Previous studies discovered multiple origins of AT2 cells based on conventional single recombinase-mediated lineage tracing strategies. It is reported that AT1 cells and bronchiolar club cells can differentiate into AT2 cells after lung injury. In this study, researchers found that the traditional lineage tracing tools have the limitation of non-specific labeling. For example, the Hopx-based AT1 cell genetic tool and Scgb1a1-based club cell genetic tool could also label other known sources of AT2 cells, such as multipotent stem cells called bronchioalveolar stem cells (BASCs) located at bronchioalveolar-duct junction. The non-specific labeling of conventional genetic tools greatly interferes with the results of lineage tracing.
To resolve this scientific controversy, researchers developed a series of new genetic lineage tracers using dual recombinases recombination systems, Cre-loxP and Dre-rox, which greatly improved the accuracy and specificity of cell labeling. The AT1 cell, AT2 cell, BASCs, and club cells were specifically labeled by new genetic tools. Combined with lung injury mouse models, they found that AT2 cells, in addition to self-renewal, also derive from BASCs and club cells, but not from AT1 cells, which resolved years of scientific controversies in the lung field.
By using scRNA-seq and conditional gene knock-out, they further showed that club cells and BASCs had different cell differentiation pathways during the transition to AT2 cells, and were oppositely regulated by the Notch signaling pathway after lung injury. The inhibition of Notch signaling promotes the transition of BASCs to AT2 cells but inhibits the transition of club cells to AT2 cells.
This study provides new insights into lung repair and regeneration, and the newly developed lineage tracing strategies provide new technical methods for the fields of developmental biology, regenerative medicine, and genetics.
Contact: zhoubin@sibs.ac.cn
Reference: https://www.sciencedirect.com/science/article/pii/S0092867424003027
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