نتایج جستجو برای: as an important niche dimension

تعداد نتایج: 8654275  

ژورنال: گلجام 2006
شجاع نوری, نیکو,

Since ancient times, “Tree” has been the focus of attention as a symbol, in works of art. In Mesopotamia and later in Iran, this symbol was known as a holy tree or tree of life as early as 3500 BC, and was delineated in different shapes. After the advent of Islam, this symbol prevailed in works of art; However, no longer as a mythological holy tree but rather standing for heavenly b...

2004
Luis David Garcia

We develop the necessary theory in computational algebraic geometry to place Bayesian networks into the realm of algebraic statistics. We present an algebra–statistics dictionary focused on statistical modeling. In particular, we link the notion of effective dimension of a Bayesian network with the notion of algebraic dimension of a variety. We also obtain the independence and non–independence ...

2012
Kevin N. Laland Michael J. O’Brien

Niche construction is the process whereby organisms, through their activities and choices, modify their own and each other’s niches. By transforming naturalselection pressures, niche construction generates feedback in evolution at various different levels. Niche-constructing species play important ecological roles by creating habitats and resources used by other species and thereby affecting th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1399

this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...

پایان نامه :0 1375

to explore the idea the investingation proposed, aimed at finding whether the performances of the population of iranians students studying english in an efl context are consistent in l1 and l2 writing taks and whether there is a cross-linguistic transfer in this respect. in this regard the subjects were instructed to write four compositions-two in english and two in farsi-which consisted of an ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان 1389

the present thesis is a study of postmodern historical novel with respect to the voice of women. according to postmodern historiography,the established institution of history is one of the other manifestations of patriarchys power which has silenced women. the study analyzes angela carters nights at the circus as a postmodern historical novel which makes its female characters transgress the pat...

2012
Ron Rotkopf Erez David Barkae Einav Bar-Hanin Yehonatan Alcalay Ofer Ovadia

Classical ecological studies discussing specialization usually focus on species' performance along one niche axis. This approach may overlook niche differentiation evident in another dimension which could explain species co-occurrence. The present research exemplifies a comprehensive approach to examining local adaptation. Specifically, we examined multiple niche axes by subjecting a model orga...

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