新时代中国武术优秀文化的现代化创新论说

中国武术优秀文化是中华优秀传统文化的重要组成部分,中国武术在新时代发展中有新的使命,要与时俱进地实现自身的现代化创新,这不仅是中国武术在新时代多样化发展的时代要求,也是我国学术界探讨的一个新的理论命题。运用文献研究法、逻辑分析法,以中国武术优秀文化为研究对象,对新时代中国武术优秀文化的现代化创新展开论述。中国武术优秀文化的传承与创新在于:要传承中华优秀传统文化、弘扬中国武术优秀文化的精华;要坚定文化自信,推动武术优秀文化的创造性转化和创新性发展。新时代的中国武术优秀文化的现代化发展是多向度的,要对中国武术优秀文化进行多维度的现代化创新,不仅要满足广大人民追求美好生活的需要,而且要充分发挥其促进经济与社会发展、促进人的健康等多种作用。基于此,提出新时代的中国武术优秀文化创新性发展的策略:1)要坚定文化自信,固守武术的本质内涵,传承中华优秀传统文化;2)基于“入奥”战略,明确竞技武术的发展立场,推动竞技武术的现代化创新;3)关怀人的健康,挖掘中国武术的健康促进功能;4)科技赋能武术产业与多产业融合发展,构建中国武术产业新形态。

Ecophysiological Evidence for the Competition Strategy of Two Psammophytes Artemisia halodendron and A. frigida in Horqin Sandy Land, Nei Mongol

Gas exchange, water relations and leaf chemical characteristics were examined of twodominant psammophytes: Artemisia frigida Willd and A halodendron Turcz. ex Bess in Horqin sandy land, NeiMongol, China under different water regimes. The measurements were conducted by submitting the plantsto five different irrigation levels. A. fTigida was characterized by lower photosynthetic rate (Pn), lowertranspiration rate ( TR and lower shoot water potential (ψuw) relative to A. halodendron. Foliage of A frigdahad higher values of relative water deficit (RWD), bound water content (BWC), ratio of bound water contentto free water content (BWC/FWC) and integrated drought-resistant index (DI than that of A. halodendron.Water relations differed significantly between two species in response to soil water availability. ψw, BWCand BWC/FWC ratio of A halodendron exhibited large variation with gradual decrease of soil moisture.However, in terms of these parameters, A. fRIGIDA was characterized by higher capacity of water holding anddrought tolerance relative to A halodendron. Proline and total soluble sugar contents of A frigida and Ahalodendron tended to increase with decrease of soil moisture and the former had a larger increaseamplitude than the latter. This shows that A frigida has a higher osmotic regulation ability than A halodendron.Under the extreme drought conditions, ψw, RWD, BWC and BWC/FWC of two species were approximate,but soluble proteins degraded largely. A large amount of accumulation of organic matter, proline and totalsoluble sugars were observed in both A halodendron and A frigida. The increase in proline and total solublesugar contents and soluble protein degradation of A frigida far exceeded those of A. halodendron. Webelieve that the accumulated materials at this moment are mostly of nutrient substances available for therecovery of plants after the drought. This is one of the reasons why A halodendron plants died while Afrigida plants survived under extremely drought condition. Our results suggest that these ecophysiologicalfeatures of A frigida are favorable to its growth in the fixed sandy land compared with A halodendron, whichoften lost its dominance due to weak competition for water sources under lower soil water availability andare major factors resulting in replacement of A. halodendron by A. frigida in the later stage of sandyvegetation succession in Horqin.

Molecular Detection and Disease Resistance Identification of Transgenic Wheat with pti5-vp16 Gene

The immature embryos of wheat cultivars Liaochun10, Tiechun1 and Fengqiang3 were bombarded with gold particles coated with pti5 vp16 by gene gun and disease resistant regenerated plants were attained. In order to confirm that the plants are genuine transformed ones, a series of molecular tests were conducted as follows. Firstly, transient GUS expression test on embryos two days after bombardment was done. There were many obvious blue spots produced on the surface of bombarded embryos after GUS staining, in which the maximum reached to 85 blue spots per embryo. Secondly, PCR test was performed with DNA from the regenerated plants obtained after double selection with ppt. 6 plants were found PCR test positive. At last, further verification analysis using dot hybridization and southern blotting was carried out on those PCR positive plants and the strong hybridization signals appeared as expected. All the above tests were uniformly indicated that the disease resistant regenerated plants were true transgenic plants. When inoculated with Blumeria graminis, transgenic wheat plants of PCR positive results were mostly resistant(R) after 7 days, and resis tant, moderate resistant(MR), moderate susceptible(MS) at 14 days respectively. The disease severity of them was distinctively lighter than that of control.

SPATIAL TRAJECTORY PREDICTION OF VISUAL SERVOING

Target tracking is one typical application of visual servoing technology. It is still a difficult task to track high speed target with current visual servo system. The improvement of visual servoing scheme is strongly required. A position-based visual servo parallel system is presented for tracking target with high speed. A local Frenet frame is assigned to the sampling point of spatial trajectory. Position estimation is formed by the differential features of intrinsic geometry, and orientation estimation is formed by homogenous transformation. The time spent for searching and processing can be greatly reduced by shifting the window according to features location prediction. The simulation results have demonstrated the ability of the system to track spatial moving object.

鸡源欧文氏菌的分离鉴定及耐药基因检测

为了鉴定从沐川乌骨黑鸡肠道内容物中分离出的1株细菌的种类以及检测其耐药基因携带情况,笔者采用革兰氏染色镜检、生化鉴定、16S rDNA基因序列分析以及抗生素耐药性和耐药基因检测。结果表明,该分离株为欧文氏菌,并将其命名为S21。药敏试验结果表明,环丙沙星、氧氟沙星、头孢氨苄表现为敏感;四环素表现为中介;其余抗生素为耐药,且只检出耐药基因rmtA、tetE、pgi,其余所试耐药基因未检出,说明了该养殖场鸡源欧文氏菌的耐药情况较严重。

Capacity of soil to protect organic carbon and biochemical characteristics of density fractions in Ziwulin Haplic Greyxems soil

Physical protection is one of the important ways to stabilize organic carbon in soils. In order to under- stand the role of soils as a carbon sink or source in global climatic change and carbon cycles and properly manage soils as a carbon sink, we ought to know how many organic car- bon (OC) in a given soil could be protected. By a density fractionation approach and ultrasonic technique, each soil sample was divided into three fractions: free light fraction (free-LF), occluded fraction (occluded-LF) and heavy frac- tion (HF). The obtained fractions were analyzed for total OC content, carbohydrate content and recalcitrant OC content. The results showed: (ⅰ) In the whole soil profile, dominance of OC consistently decreased in the following order: HF, free-LF, occluded-LF. This suggested that OC in soils were mostly protected. From 0—10 to 60—80 cm horizons, the OC in free-LF decreased from 25.27% to 3.72%, while OC in HF they were increased from 72.57% to 95.39%. The OC in oc- cluded-LF was between 2.16% and 0.89%. (ⅱ) Organic carbon recalcitrance in free-LF was similar to that in HF, and was even higher than that in HF below the surface hori- zon. This suggested that free-LF was not always the most fresh and non-decomposed fraction. OM quality of HF was higher than that of free-LF in the surface 10 cm below, namely the protected OM had higher quality than free OM in these horizons.

Effects of mifepristone on the proliferation, apoptosis and cis-diamminedichloroplatinum sensitivity of cultured chemoresistant human ovarian cancer cells

Of late, more and more studies are being carried out to explore theanti-tumour activity of mifepristone. As Rose and Barnea1 reported, mifepristone can inhibit thegrowth of cultured ovarian carcinoma cells. The role of mifepristone in cis-diamminedichloroplatinum( CDDP) and taxol resistant ovarian carcinoma was found in Rocereto and colleagues' study. Thepurpose of this study was to examine the effect of mifepristone on the growth and CDDP-sensitivityof CDDP-resistant human ovarian carcinoma cells and give an experimental basis for the treatmentwith mifepristone of refractory ovarian carcinoma.