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A novel flexible nerve guidance conduit promotes nerve regeneration while providing excellent mechanical properties

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Neural Regeneration Research 2025年第7期20卷 2084-2094页

作者： Tong Li Quhan Cheng Jingai Zhang Boxin Liu Yu Shi Haoxue wang Lijie Huang Su Zhang Ruixin Zhang song wang Guangxu Lu Peifu Tang Zhongyang Liu Kai wang Department of Orthopedics the Fourth Medical Center of Chinese PLA General HospitalBeijingChina Department of Training and Sports Medicine Characteristic Medical Center of Chinese People’s Armed Police ForceTianjinChina Medical School of Chinese PLA BeijingChina Key Laboratory of Bioactive Materials for the Ministry of Education College of Life SciencesNankai UniversityTianjinChina Department of Orthopedics Tianjin HospitalTianjinChina Department of Rehabilitation Medicine Er Quan Hospital of PAPWuxiJiangsu ProvinceChina

Autografting is the gold standard for surgical repair of nerve defects>5 mm in length;however,autografting is associated with potential complications at the nerve donor *** an alternative,nerve guidance conduits may be *** ideal conduit should be flexible,resistant to kinks and lumen collapse,and provide physical cues to guide nerve *** designed a novel flexible conduit using electrospinning technology to create fibers on the innermost surface of the nerve guidance conduit and employed melt spinning to align ***,we prepared disordered electrospun fibers outside the aligned fibers and helical melt-spun fibers on the outer wall of the electrospun fiber *** presence of aligned fibers on the inner surface can promote the extension of nerve cells along the *** helical melt-spun fibers on the outer surface can enhance resistance to kinking and compression and provide *** novel conduit promoted nerve regeneration and functional recovery in a rat sciatic nerve defect model,suggesting that it has potential for clinical use in human nerve injuries.

关键词： aligned fibers anti-kinking helical fibers nerve guidance conduit nerve regeneration peripheral nerve injury topological guidance

经“O”点穿刺与传统单侧入路治疗L_(5)椎体骨质疏松性压缩性骨折

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中国组织工程研究 2025年第15期29卷 3165-3170页

作者：徐雨果黄家虎王清徐双王松西南医科大学附属医院骨科四川省泸州市646000 四川省科技城医院四川省绵阳市621000

背景:单侧穿刺入路经皮穿刺球囊扩张椎体后凸成形治疗骨质疏松性椎体压缩骨折优于双侧穿刺入路,由于L_(5)特殊解剖形态和位置特殊,传统单侧穿刺入路治疗L_(5)椎体骨质疏松性椎体压缩骨折适用性差,因此提出“O”点穿刺入路来解决该问题... 详细信息

背景:单侧穿刺入路经皮穿刺球囊扩张椎体后凸成形治疗骨质疏松性椎体压缩骨折优于双侧穿刺入路,由于L_(5)特殊解剖形态和位置特殊,传统单侧穿刺入路治疗L_(5)椎体骨质疏松性椎体压缩骨折适用性差,因此提出“O”点穿刺入路来解决该问题。目的:比较经横突基底部-椎弓根后上部-关节突外侧交点(“O”点)入路与传统单侧入路经皮穿刺球囊扩张椎体后凸成形治疗L_(5)椎体骨质疏松性压缩骨折的疗效差异。方法:回顾性分析西南医科大学附属医院2020年1月至2022年12月收治的54例L_(5)椎体骨质疏松性压缩骨折行经“O”点入路或传统经皮穿刺球囊扩张椎体后凸成形治疗的患者,根据手术方式分为2组,“O”点入路组(A组)29例,传统入路组(B组)25例。术前在X射线正位片测量A组“O”点与髂棘位置及穿刺角度;比较两组术前与术后第2天、末次随访的局部Cobb角、椎体前缘、中部高度及骨水泥分布情况;术前、术后第2天及末次随访采用疼痛目测类比评分、Oswestry功能障碍指数评估患者疼痛缓解情况与日常生活能力,记录手术相关并发症。结果与结论:①A组手术时间、术中透视次数均少于B组,差异有显著性意义(P0.05);⑤术后骨水泥分布,A组分布良好占97%(28/29),B组分布良好占88%(22/25),A组明显优于B组(P<0.05);⑥提示经“O”点穿刺入路与传统入路经皮穿刺球囊扩张椎体后凸成形治疗L_(5)椎体骨质疏松性压缩骨折疗效满意,但“O”点穿刺入路经皮穿刺球囊扩张椎体后凸成形治疗骨水泥分布更满意,还可避免高髂棘对L_(5)椎体穿刺入路的影响。

关键词：骨质疏松性压缩骨折经皮穿刺椎体后凸成形 “O”点 L_(5)椎体骨水泥

Multiplicity one, local and global conjugacy

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Science China Mathematics 2020年第6期63卷 1029-1038页

作者： song wang Institute of Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China

The issue of local and global conjugacy is closely related to the multiplicity one property in representation theory and the Langlands program. In this article we give first families of connected instances for SO2N where the multiplicity one fails in both aspects of representation theory and automorphic forms with certain assumptions on the Langlands functoriality.

关键词： multiplicity one l-adic Galois representation local conjugacy global conjugacy

Multiplicity one theorems, S-version

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Science China Mathematics 2015年第2期58卷 233-256页

作者： wang song The Morningside Center of Mathematics Academy of Mathematics and Systems ScienceChinese Academy of Sciences HUA Loo-Keng Key Laboratory of Mathematics Chinese Academy of Sciences

It is well known by the strong multiplicity one thatπis uniquely determined by the Satake parameter c(π,v)for almost all ***,it suffices for us to test only finitely many *** proved some S-effective version of multiplicity one *** speaking,ifπandπ′are not equivalent,then there is also a bound N(S)which is some expression in terms of K,d and max(N(π),N(π′)),which are analytic conductor ofπandπ′,respectively(will be defined soon),such that there is a v/∈S withπv～=π′vand N pv<*** also proved S-effective multiplicity one for the Chebotarev Density Theorem,and for GL(1).

关键词： multiplicity one theorem S-version automorphic form L-function

Grunwald-wang theorem, an effective version

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Science China Mathematics 2015年第8期58卷 1589-1606页

作者： wang song The Morningside Center of Mathematics Academy of Mathematics and Systems ScienceChinese Academy of Sciences HUA Loo-Keng Key Laboratory of Mathematics Chinese Academy of Sciences

The main purpose of this article is to establish an effective version of the Grunwald-wang theorem, which asserts that given a family of local characters Xv of Kv of exponent m, where v C S for a finite set S of primes of K, there exists a global character X of the idele class group CK of exponent m （unless some special case occurs, when it is 2m） whose local component at v is Xv. The effectiveness problem for this theorem is to bound the norm N（X） of the conductor of X in terms of K, m, S and N（Xv）（v C S）. The Kummer case （when K contains pro） is easy since it is almost an application of the Chinese remainder theorem. In this paper, we solve this problem completely in general case, and give three versions of bound, one is with GRH, and the other two are unconditional bounds. These effective results have some interesting applications in concrete situations. To give a simple example, if we fix p and l, one gets a good least upper bound for N such that p is not an /-th power rood N. One also gets the least upper bound for N such that lr ｜φ｜（N） and p is not an/-th power mod N. Some part of this article is adopted （with some revision） from the unpublished thesis by wang （2001）.

关键词： Grunwald-wang theorem class field theory bound

BAHA:A Novel Approach to Automatic Bug Report Assignment with Topic Modeling and Heterogeneous Network Analysis

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Chinese Journal of Electronics 2016年第6期25卷 1011-1018页

作者： ZHANG Wen wang song wang Qing School of Economics and Management Beijing University of Chemical Technology Department of Electrical and Computer Engineering at University of Waterloo Laboratory of Internet Technologies Institute of SoftwareChinese Academy of Sciences

We propose an approach called Bug report assignment with topic modeling and heterogeneous network analysis(BAHA) to automatically assign bug reports to developers. Existing studies adopt social network analysis to characterize the collaboration of developers. The networks used in these studies are all homogenous. In real practice of bug resolution, different developers collaborate on different bug reports that makes the homogenous network unable to capture this information. We use heterogeneous network to describe the relations between reporters,bug reports and developers to characterize developers’ collaboration. Experiments on Eclipse JDT pro ject show that BAHA outperforms the state of art methods on automatic bug report assignment.

关键词： Bug report assignment Topic model Heterogeneous network Bug report tracking

Derivations and Automorphism Group of Original Deformative Schrodinger-Virasoro Algebra

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Algebra Colloquium 2015年第3期22卷 517-540页

作者： Qifen Jiang song wang Department of Mathematics Shanghai Jiaotong University Shanghai 200240 China Department of Mathematics TongJi University Shanghai 200092 China College of Information Technology Shanghai Ocean University Shanghai 201306 China

In this paper, we determine the derivation algebra and the automorphism group of the original deformative Schrodinger-Virasoro algebra, which is the semi-direct product Lie algebra of the Witt algebra and its tensor d... 详细信息

关键词： derivation algebra automorphism group Lie algebra Wg(a b) Lie algebraW(a b) Witt algebra

Non-degenerate Invariant Bilinear Forms on Leibniz Algebras

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Algebra Colloquium 2015年第4期22卷 711-720页

作者： song wang Linsheng Zhu Department of Mathematics Tngji University Shanghai 200092 China College of Information Technology Shanghai Ocean University Shanghai 201306 China Department of Mathematics Changshu Institute of Technology Changshu Jiangsu 215500 China

In this paper, we study Leibniz algebras with a non-degenerate Leibniz- symmetric fl-invariant bilinear form B, such a pair （g, B） is called a quadratic Leibniz algebra. Our first result generalizes the notion of double extensions to quadratic Leibniz algebras. This notion was introduced by Medina and Revoy to study quadratic Lie alge- bras. In the second theorem, we give a sufficient condition for a quadratic Leibniz algebra to be a quadratic Leibniz algebra by double extension.

关键词： quadratic Leibniz algebra double extension

Periodicities in photospheric magnetic flux

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Science China(Physics,Mechanics & Astronomy) 2006年第2期49卷 246-256页

作者： song Wenbin wang Jingxiu National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China

Magnetic field plays an important role in solar structure and activity. In prin-ciple, the determination of magnetic flux would provide the best general-purpose index of solar activity. Currently, the periodicity studies corresponding to photospheric magnetic flux (PMF) are very few possibly due to the absence of a uniform flux sequence. In this paper, by using 383 NSO/Kitt Peak magnetic synoptic charts we reconstruct a flux se-quence from February 1975 to August 2003 and perform a relatively systemic periodicity analysis with two methods of the Scargle periodogram and the Morlet wavelet transform. As a result, four periods are found at around 1050, 500, 300 and 160 days. We analyze these periods’ temporal variabilities in detail and discuss their respective origins briefly.

关键词： solar magnetic fields solar activity solar photosphere.