, 2013 距乌鲁木齐市西南15千米左右的雅玛里克山 下有一个小小的湖泊——白湖,湖泊虽小却栖息着一个明星物种——白头硬尾鸭(Oxyura leucoceqhala),湖泊正是以它的名字命名的.白头硬尾鸭是世界濒危种,全球数量不足8000只,整个新疆也不到100只.早在20世纪90年代,白头硬尾鸭就成了地中海和西亚各国的重点保护种.中国的白头硬尾鸭生存现状不明,仅在新疆西部的准噶尔盆地及天山地区有过繁殖记录.近年曾于内蒙古西部的鄂尔多斯出现过零星个体,在湖北洪湖地区有过个越冬记录.每年4月开始 ...
马鸣 +3 more
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[Age-Related Changes in the Oral Microbiota]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZhou J +8 more
europepmc +1 more source
[Research Progress in the Association between Amino Acid Metabolism of Oral Microorganisms and Host Cells and Oral Diseases]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2022 Zhang SW, Li YC, Pan YP.
europepmc +1 more source
[Correlation analysis of peri-implant health after single-tooth dental implant]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLin F, Tang Z.
europepmc +1 more source
[Advances in Research on the Mechanism of Association Between Periodontitis and Diabetes Mellitus]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2023 Li LL, Xie XT, Wu Y, Yan FH.
europepmc +1 more source
, 2017 本发明公开了一种硬度宽变的耐磨涂层及其制备方法，所述的耐磨涂层的组成为CrxSiyN1‑x‑y，其中x＝0.45～0.55，y＝0.03～0.15，x,y为原子比率；所述的耐磨涂层呈长短不一的柱状晶生长结构，每个柱状晶的宽度为40～150nm，柱状晶的长宽比为15～55，沿涂层生长方向，在所述柱状晶长度的30～75％处出现了分离存在孔隙，孔隙宽度为2～10nm。所述的耐磨涂层的硬度可在较大范围内变动，而所述的耐磨涂层的耐磨性几乎不受影响。所述的耐磨涂层可应用于摩擦传动部件 ...
李朋 +4 more
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Application of intentional replantation in advanced periodontitis involving teeth preservation. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiYe C, Yang H, Huang P.
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[Clinical application of modified edge resection technique for composite labia minora and clitoral hood reduction with preserved microstructures]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYang K, Duan Y, Li Q.
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Multi-disciplinary treatment of severe palatal radicular groove of maxillary lateral incisor: A case report and literature review. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023 Chen J +5 more
europepmc +1 more source
[Treatment strategies for immature permanent teeth under general anesthesia]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiLi Y, Feng X, Jia R, Wang Y, Shang J.
europepmc +1 more source