Using the Pearson correlation coefficient and Spearman rank correlation coefficient, the interspecific association of 13 species in different communities in Beijing mountainous area were investigated, and the niche breadth and niche overlap of 13 species were studied.

應(yīng)用Pearson相關(guān)系數(shù)和Spearman秩相關(guān)系數(shù)檢驗(yàn)，研究了北京山區(qū)天然林群落13個(gè)喬木種群的種間關(guān)聯(lián)性在线日韩成人电视播放器，并對(duì)13種植物種群的生態(tài)位寬度和生態(tài)位重疊進(jìn)行研究。

Objective To investigate the characteristics of fractional anisotropy and apparent diffusion coefficient of association fiber tracts in patients with amnestic mild cognitive impairment, and to assess the application value of diffusion tensor imaging in differential diagnosis of aMCI and AD.

目的 通過(guò)磁共振擴(kuò)散張量成像探討遺忘型輕度認(rèn)知障礙患者聯(lián)合纖維束FA值和ADC值的變化特點(diǎn)，評(píng)價(jià)DTI對(duì)aMCI的診斷及aMCI與AD鑒別診斷的應(yīng)用價(jià)值在线欧美片。

coefficient of association：關(guān)聯(lián)系數(shù)

coefficient of alienation 余相關(guān)系數(shù) | coefficient of association 關(guān)聯(lián)系數(shù) | coefficient of colligation 綜合系數(shù)

coefficient of association：相聯(lián)係數(shù)

Coefficient matrix 系數(shù)矩陣 | Coefficient of association 相聯(lián)系數(shù) | Coefficient of convergence 收斂系數(shù)

coefficient of association：相伴系數(shù)

coefficient of alienation 不相關(guān)系數(shù) | coefficient of association 相伴系數(shù) | coefficient of covariation 共變系數(shù)

coefficient of association：關(guān)聯(lián)系數(shù) 關(guān)連係數(shù); 社會(huì)(聯(lián)體)係數(shù)

codominant species 共優(yōu)種 等優(yōu)勢(shì)種 Y | coefficient of association 關(guān)聯(lián)系數(shù) 關(guān)連係數(shù); 社會(huì)(聯(lián)體)係數(shù) Y | coefficient of community 群落系數(shù) 群集係數(shù) N

coefficient of association duties：按系數(shù)課征的關(guān)稅

coefficient of apparent expansion | 表觀膨脹系數(shù) | coefficient of association duties | 按系數(shù)課征的關(guān)稅 | coefficient of association | 社會(huì)系數(shù), 群叢系數(shù)