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696 results on '"Han, Qianqian"'

14. Crystal structure of tetrapropylammonium bicarbonate–1-(diaminomethylene)thiourea – water (2/2/1), C30H72N10O7S2

Author

Zhang Lulu, Han Qianqian, and Zhu Xin

Subjects
2247441, Physics, QC1-999, Crystallography, QD901-999
Abstract

C30H72N10O7S2, triclinic, P1̄ (no. 2), a = 8.75510(10) Å, b = 15.1170(2) Å, c = 16.8843(2) Å, α = 76.272(1)° $76.272(1){}^{\circ}$ , β = 78.397(1)° $78.397(1){}^{\circ}$ , γ = 88.277(1)° $88.277(1){}^{\circ}$ , V = 2126.09(5) Å3, Z = 2, R gt(F) = 0.0407, wR ref(F 2) = 0.1282, T = 296(2) K.

Published
2023
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16. Crystal structure of tetrapropylammonium-1,3,5-thiadiazole-5-amido-2-carbamate – 1,2,4-thiadiazole-3,5-diamine – water (1/1/1), C17H37N9O3S2

Author

Tang Huawei, Han Qianqian, and Liu Lijuan

Subjects
2239232, Physics, QC1-999, Crystallography, QD901-999
Abstract

C17H37N9O3S2, monoclinic, P21/c (no. 14), a = 8.8492(13) Å, b = 17.285(3) Å, c = 16.810(3) Å, β = 93.493(2)°, V = 2566.4(7) Å3, Z = 4, R gt(F) = 0.0395, wR ref(F 2) = 0.1277, T = 296(2) K.

Published
2023
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17. Research on Emergency Rescue Strategy of Mountain Cross-Country Race

Author

Han, Qianqian, Li, Zhenping, Wang, Kang, Barbosa-Povoa, Ana Paula, Editorial Board Member, de Almeida, Adiel Teixeira, Editorial Board Member, Gans, Noah, Editorial Board Member, Gupta, Jatinder N. D., Editorial Board Member, Heim, Gregory R., Editorial Board Member, Hua, Guowei, Editorial Board Member, Kimms, Alf, Editorial Board Member, Li, Xiang, Editorial Board Member, Masri, Hatem, Editorial Board Member, Nickel, Stefan, Editorial Board Member, Qiu, Robin, Editorial Board Member, Shankar, Ravi, Editorial Board Member, Slowiński, Roman, Editorial Board Member, Tang, Christopher S., Editorial Board Member, Wu, Yuzhe, Editorial Board Member, Zhu, Joe, Editorial Board Member, Zopounidis, Constantin, Editorial Board Member, Shi, Xianliang, editor, Bohács, Gábor, editor, Ma, Yixuan, editor, Gong, Daqing, editor, and Shang, Xiaopu, editor

Published
2022
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25. Large-Scale Target Detection and Classification Based on Improved Candidate Regions

Author

Xi, Runping, Han, Qianqian, Jia, Gaoyun, Kou, Xuefeng, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Peng, Yuxin, editor, Hu, Shi-Min, editor, Gabbouj, Moncef, editor, Zhou, Kun, editor, Elad, Michael, editor, and Xu, Kun, editor

Published
2021
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29. Research progress on the regulatory mechanism of estrogen in periodontal ligament cells repair and the reconstruction of periodontal tissue

Author

LI Qi, WANG He, HUANG Zijun, and HAN Qianqian

Subjects
estrogen, periodontal ligament stem cells, periodontal ligament fibroblasts, cementoblasts, osteoblasts, osteoclasts, bone mesenchymal stem cells, collagen i, osteopontin, bone sialoprotein, osteocalcin, Medicine
Abstract

Periodontium regeneration and repair is a controversial and difficult point in the treatment of periodontosis. The proliferation, differentiation, migration and adhesion of periodontal ligament cells and the dynamic relationship between periodontal ligament cells and their extracellular matrix proteins are the basis of periodontium morphological reconstruction, functional maintenance and tissue repair. This article reviews the mechanism of estrogen-regulated periodontal membrane fine repair and periodontal tissue reconstruction to provide the basis for follow-up research on the treatment of periodontitis and the promotion of periodontal tissue repair and reconstruction by exogenous estrogen-mediated periodontal membranes. Under the regulation of certain concentrations of estrogen, the proliferation and differentiation ability of periodontal ligament stem cells (PDLSCs) and bone mesenchymal stem cells (BMSCs) to other periodontal ligament cells were enhanced. At the same time, PDLSCs, BMSCs, human periodontal ligament fibroblasts (HPLFSs), osteoblasts and cementoblasts synthesized and secreted collagen I (COLI), osteopontin (OPN), bone sialoprotein (BSP) and osteocalcin (OCN) into the extracellular matrix. They interact with fibronectin (FN) and cementum attachment protein (CAP) in the extracellular matrix to form a variety of chain complexes and regulate each other, thus promoting the growth, migration, adhesion and fibrosis of periodontal ligament cells, repairing the collagen fiber skeleton of the periodontal ligament and adhering the two ends to the new cementum and the inherent alveolar bone.

Published
2021
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40. An Approach to the Applicability Evaluation of Moving Target Tracking Algorithm

Author

Xi, Runping, Xue, Shaohui, Han, Qianqian, Chen, Jiaxin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Lin, Zhouchen, editor, Wang, Liang, editor, Yang, Jian, editor, Shi, Guangming, editor, Tan, Tieniu, editor, Zheng, Nanning, editor, Chen, Xilin, editor, and Zhang, Yanning, editor

Published
2019
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