نتایج جستجو برای: canonical correspondence analysis
تعداد نتایج: 2924775 فیلتر نتایج به سال:
background: the spread of urbanization in floodplains as well as increase of industrial and agricultural activities in river discharges may lead to water pollution by physical, chemical and biological pollutants. one of the major concerns in monitoring the water resources system is indentifying major quality parameters and determining a relationship between physical and chemical parameters. thi...
Learning approaches are factors that contribute to sustainability education. Academic stress negatively affects students’ performances in the context of teaching. This study analyzed how deep and surface could be related coping with academic gender. An online survey was completed by 1012 university students. The relationship between gender, sources learning examined through a multivariate canon...
چکیده ندارد.
Canonical discriminant analysis (CDA) in combination with cluster analysis and genotype by trait (GT) biplot analysis methods were used to assess 9 wheat cultivars having different degrees of tolerance along with 36 F1 hybrids derived from partial diallel crosses, using stress tolerance indices, in two levels (well watered and cessation of irrigation at pollination stage). Cluster analysis clas...
reforestation is one of the philippines’ government efforts to restore and rehabilitate degraded mangrove ecosystems. although there is recovery of the ecosystem in terms of vegetation, the recovery of closely-linked faunal species in terms of community structure is still understudied. this research investigates the community structure of mangrove crabs under two different management schemes: p...
چکیده: روابط بین پوشش گیاهی و عاملهای محیطی به شناخت عوامل مؤثر بر رشد و استقرار گونههای گیاهی و همچنین شناسایی رویشگاهها کمک میکند. هدف از این پژوهش، بررسی ارتباط عوامل محیطی با پراکنش رویشگاههای مرتعی و تعیین مهمترین عوامل مؤثر در تفکیک این رویشگاهها در منطقه جنوب شرقی سبلان واقع در استان اردبیل میباشد. نمونهبرداری به روش تصادفی- سیستماتیک انجام شد. در اکوسیستم مرتعی مورد نظر، 45 روی...
Question: What are the relative influences of human impact, macroclimate, geographic location and habitat related environmental differences on species composition of boreal epiphytic macrolichen communities? Location: Troms county in northern Norway. Methods: Detrended Correspondence Analysis revealed the main gradient structure in lists of epiphytic macrolichen species from deciduous forests. ...
in financial distress studies selection of variable is commonly basedon the success of variables in variable sets employed in earlierbankruptcy studies, suggestions in the literature or an accompanyingdata reduction in a large set of variables. if seemingly different variablesets exhibit a strong relationship then heterogeneous variable setscapture common information. canonical correlation anal...
during the past decade, the world economic forum has published its annual reports in which the global competitiveness index is included. this paper aims to investigate the key factors for achieving an innovation-driven economy. in this paper, we used partial canonical correlation analysis (pcca) to examine the relationships between key pillars in “efficiency enhancers” and “business sophisticat...
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