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Lanzhou, China

Lanzhou University is a major research university in Lanzhou, Gansu Province, China. Founded in 1909, it is one of the key universities under China's Ministry of Education . It provides programs for undergraduate, graduate students on four campuses—three in Lanzhou city centre and one in Yuzhong County, about 30 miles away from the main campus. Total enrolment is approximately 20,000. Undergraduate students study at the Yuzhong campus. There are 6 National Bases for the Training of Researching and Teaching personnel for Fundamental Disciplines. The University operates an additional 35 institutes along with 1 national key Laboratory of the Applied Organic and 3 key laboratories of Arid and Grassland Ecology, West China Environment, Magnetism and Magnetic Materials of the Ministry of Education, a key laboratory of Grassland Agro-ecosystem of the Ministry of Agriculture. Lanzhou University was one of the first universities entitled to enroll Bachelor Master’s and Doctoral degree candidates in 1981. Lanzhou University is one of the top ten universities in contributions to academic publications in international journals frequently cited by ongoing research from around the world. Wikipedia.

Li T.,Lanzhou University
Brain : a journal of neurology | Year: 2013

Stroke induces rapid activation and expansion of microglia, but the main source of microgliosis is controversial. Here we investigated the formation of microgliosis and infiltration of circulating cells in a photothrombosis stroke model by taking advantage of parabiosis and two-photon microscopy. We found that a small population of blood-derived CX3CR1(GFP/+) cells infiltrated the cerebral parenchyma, but these cells did not proliferate and were phenotypically distinguishable from resident microglia. CX3CR1(GFP/+) infiltrating cells also displayed different kinetics from reactive microglia. The number of CX3CR1(GFP/+) infiltrating cells peaked on Day 5 after stroke and then decreased. The decline of these infiltrating cells was associated with an active apoptotic process. In contrast, reactive microglia were recruited to the ischaemic area continuously during the first week after stroke induction. Immunohistology and in vivo two-photon imaging revealed that cells involved in the process of microgliosis were mainly derived from proliferating resident microglia. Expansion of microglia exhibited a consistent pattern and our in vivo data demonstrated for the first time that microglia underwent active division in regions surrounding the ischaemic core. Together, these results indicated that CX3CR1(GFP/+) infiltrating cells and reactive microglia represented two distinct populations of cells with different functions and therapeutic potentials for the treatment of stroke. Source

Liu P.,Lanzhou University
Advances in Colloid and Interface Science | Year: 2014

Polymer multilayered hollow microspheres prepared by layer-by-layer (LbL) self-assembly attract more and more interest due to their unique application, especially as drug delivery system (DDS). Unfortunately, the multilayered hollow microspheres assembled via weak linkages could fuse and/or aggregate in high ionic strength media or strong acidic or basic media. This severely restricts the practical applications of the multilayered hollow microspheres as DDS in human physiological medium. In the present work, the progress in stabilization of the multilayered hollow microspheres is reviewed, with emphasis on the assembling process and their crosslinking mechanism. © 2013 Elsevier B.V. Source

Li J.,Lanzhou University
Current Opinion in Plant Biology | Year: 2010

Receptor-like protein kinases (RLKs) are transmembrane proteins crucial for cell-to-cell and cell-to-environment communications. The extracellular domain of a RLK is responsible for perception of a specific extracellular ligand to trigger a unique intercellular signaling cascade, often via phosphorylation of cellular proteins. The signal is then transduced to the nucleus of a cell where it alters gene expression. There are more than 610 RLKs in Arabidopsis thaliana, only a handful of them have been functionally characterized. This review focuses on recent advances in our understanding of a small group of RLKs named somatic embryogenesis receptor-like protein kinases (SERKs). SERKs act as coreceptors in multiple signaling pathways via their physical interactions with distinct ligand-binding RLKs. © 2010 Elsevier Ltd. Source

A monitoring system for turbulence of the atmospheric boundary layer under a wind drift sand flow or sand dust storm environment comprises: a meteorological tower (

A real-time synchronous measurement system for multiple factors such as a wind-blown sand electric field, sand particle electrification and wind speed, comprising: a first support, a second support, a third support, and an electric field instrument disposed vertically in parallel. A 3D ultrasonic anemometer (

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