نتایج جستجو برای: three major landscape elements are typically recognized

تعداد نتایج: 6148956  

2003
Brett J. Goodwin Lenore Fahrig

We investigated the impact of landscape structure on landscape connectivity using a combination of simulation and empirical experiments. In a previous study we documented the movement behaviour of a specialized goldenrod beetle (Trirhabda borealis Blake) in three kinds of patches: habitat (goldenrod) patches and two types of matrix patch (cut vegetation and cut vegetation containing camouflage ...

Journal: :iranian journal of public health 0
f. zaini; f.azordegan; j.chabavizadeh

fungal elements of urinary tract were investigated in two groups of the individuals, either with major underlying illnesses, or without any diseases. diabetes mellitus was recognized as the most important underlying diseases in this study and candida glabrata was the commonest species occurring in high numbers in urine specimens of debilitated patients.

Journal: :Annales de l'I.H.P 2021

Dans une permutation, un record est maximum ou minimum, en partant de la droite gauche. Les éléments d’une permutation peuvent être classés deux types : les records (dits points extérieurs) et autres intérieurs). permutations sans point intérieur ont été étudiées sous le nom carrées. Ici, nous explorons ayant nombre fini intérieurs, dites quasi-carrées. Contrairement aux carrées, l’énumération ...

Journal: :محیط شناسی 0
ایمان سعیدی مربی گروه مهندسی فضای سبز، دانشکدۀ کشاورزی، دانشگاه ملایر حسن دارابی استادیار گروه مهندسی طراحی محیط، دانشکدۀ محیط زیست، دانشگاه تهران محسن گودرزی مربی گروه مهندسی فضای سبز، دانشکدۀ کشاورزی، دانشگاه ملایر

introduction elderly is a period of human life cycle. men need especial heath and spiritual care in aging stage.elder sanatorium is one of care providers introduced for aging people nursery and accommodation. elder sanatoriums are symbols of aging people isolation in iran. it is reflect of society tendency to ostracizethis class of society. loneliness, boredom, frustration and helpless imposed ...

In this paper, Landscape Allocation using Genetic Algorithm (LAGA), a spatial multi-objective land use optimization software is introduced. The software helps in searching for optimal land use when multiple objectives such as suitability, area, cohesion and edge density indices are simultaneously involved. LAGA is a flexible and easy to use genetic algorithm-based software for optimizing the sp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و 1387

we show that when both sources ( lepton flavor violation sources and cp-violating phases) are present, the electric dipole moment of the electron, $d_e$, receives a contribution from the phase of the trilinear $a$-term of staus, $phi_{a_ au}$. for $phi_{a_ au}=pi/2$, the value of $d_e$, depending on the ratios of the lfv mass elements, can range between zero and three orders of magnitude a...

Abstract Urban parks are important public multifunctional space used for a wide range of activities. The usage levels of parks depend on the spatial characteristics of the spaces, where its forms and occupancies are referred as the usage-spatial relationship. Natural elements spatial complexity and park usability is of interest in this study. A photo - questionnaire was conducted among 296 of p...

2011
JIANGUO WU

and methodological developments by recognizing the importance of micro-, meso-, macro-, and cross-scale approaches. The term landscape ecology was coined in 1939 by the German geographer Carl Troll, who was inspired by the spatial patterning of landscapes revealed in aerial photographs and the ecosystem concept developed in 1935 by the British ecologist Arthur Tansley. Troll originally defi ned...

Habitat and ecosystem fragmentation and, consequently, the loss of landscape connectivity are major causes of biodiversity destruction, leading to disruption of material, energy, and information flow at the landscape scale. Given the importance of this issue, the current study aimed to evaluate the ecological connectivity and spatial planning of Qazvin Province, in order to re-establish and pro...

Journal: :international journal of environmental research 0
m.r. masnavi graduate faculty of environment, university of tehran, p.o.box 14155-6135, tehran-iran

the notion of sustainable development has rapidly gained considerable attention since the lastdecades of the twentieth century. it has become a locus for global paradigm shift on environment and development issues particularly after rio conference in 1992. the comparative analysis of agenda 21 and major un documents, mdg, and rio+20 as well as some major sources are made to provide a context fo...

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