نتایج جستجو برای: diversity in ecological function

تعداد نتایج: 17151364  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده ادبیات و زبانهای خارجی 1392

the application of a comprehensive model of communicative language ability (cla) to language teaching and testing has always been an imperative in l2 education since hymess proposal of communicative competence in the 1970s. recent l2 research has clearly underscored the importance of sufficient pragmatics representation as an essential component of cla in pedagogical and testing practices in l2...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

Not all of the Sudan has been covered by post studies; and parts of it seemed more favoured research topic of the others. The first attempt to study the flora of the study area was in 1958, which included in the work of Harrison and Jackson about classification of the Sudan vegetation. The study area was very rich of plant diversity, especially trees and shrubs, because of the high rainfall and...

Journal: :Proceedings. Biological sciences 2013
Jennifer L Kelley John L Fitzpatrick Sami Merilaita

The incredible diversity of colour patterns in coral reef fishes has intrigued biologists for centuries. Yet, despite the many proposed explanations for this diversity in coloration, definitive tests of the role of ecological factors in shaping the evolution of particular colour pattern traits are absent. Patterns such as spots and eyespots (spots surrounded by concentric rings of contrasting c...

Dmitrichenko, Nikolay, Khrutba, Viktoriia, Khrutba, Yuliia, Spasichenko, Oksana,

The transport system of many Ukrainian cities does not meet the EU standards and requirements. There is a need to improve urban transport networks, to use transport potential efficiently on the basis of environmental logistics and to improve environmental safety as one of the principles of sustainable transport development. The systems model to create an ecologically safe logistics system of pu...

ژورنال: طلوع بهداشت یزد 2020

   Introduction: Human ecology examines the interactions between humans and the environment. Investigation of the human happiness and health requires a systematic study of the human life and ecosystem, which includes the physical and social environment of the human species.  Ecosystem is the basis of changes that occur in the biological, psychological, and social systems, because they happen in...

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