نتایج جستجو برای: species changes and species

تعداد نتایج: 16982894  

Journal: :journal of rangeland science 2015
javad mirzaei arash karami

plant diversityis essential to maintain the health of planet's ecosystems. conservation of biodiversity is necessary for the ecological stability and productivity in natural ecosystems. the aim of this research was to study the biodiversity and richness of plant species (including trees, shrubs and grasses) related to the environmental factors (soil and physiography) in the forests of zagros, w...

Journal: :medical journal of islamic republic of iran 0
m mohebali from the school of public health and institute of public health research, tehran university of medical sciences, tehran mh motazedian the medical faculty. shiraz university of medical sciences, shiraz,ir. iran. f parsa h hajjaran mr yaghoobi-ershadi

in this study, we used random amplified polymorphic dna (rapd) for identification of 17 isolates of leishmania from the skin and reticuloendothelial system of humans, animal reservoirs (rodent and dog) and sandflies in various parts of iran in the last decade. fifteen species have been confirmed by isoenzyme characterization by the london school of hygiene and tropical medicine and shiraz unive...

Journal: :journal of crop protection 0
khosrow chehri department of biology, faculty of science, razi university, kermanshah, iran. seyyed meqdad hasani department of biology, faculty of science, islamic azad university, yasuj branch, iran.

wild grasses are the most important primary feedstuffs which are susceptible to contamination with toxigenic fungi belonging to aspergillus spp. in order to explore diversity of aspergillus species associated with the inflorescences of gramineous weeds, infected inflorescences were collected from wild grasses in western parts of iran. fifty-six aspergillus isolates were obtained from all diseas...

Journal: :iranian journal of parasitology 0
m raissy department of aquatic animal health, faculty of veterinary medicine, islamic azad university–shahrekord branch, iran m ansari young researchers club, islamic azad university–shahrekord branch, iran

background: the aim of this study was to detect the occurrence of parasites in fish in armand river, chaharmahal va bakhtyari province regarding the importance of native fish population in the river. methods: the occurrence of parasites was investigated in 6 native fish ( capoeta capoeta, c. damas­cina, c. aculeta, barbus barbulus, b. grypus and glyptothorax silviae ) collected from the current...

Journal: :jundishapur journal of microbiology 0
elham rezazadeh department of microbiology, karaj branch, islamic azad university, karaj, ir iran azar sabokbar department of microbiology, karaj branch, islamic azad university, karaj, ir iran maryam moazeni department of medical mycology and parasitology, invasive fungi research center, school of medicine, mazandaran university of medical sciences, sari, ir iran mohammad sadegh rezai infection diseases research center with focus on nosocomial infection, mazandaran university of medical sciences, sari, ir iran hamid badali department of medical mycology and parasitology, infection diseases research center with focus on nosocomial infection, mazandaran university of medical sciences, sari, ir iran; department of medical mycology and parasitology, infection diseases research center with focus on nosocomial infection, mazandaran university of medical sciences, sari, ir iran. tel: +98-9128413720

conclusions these findings highlight the importance of precise and correct species identification of clinical yeast isolates via molecular approaches, and of monitoring the antifungal susceptibility of candida species recovered from clinical sources. laboratories should consider routine mic testing of c. glabrata isolates collected from sterile sites. surveillance studies of candida species and...

Physiological and biochemical changes during sunflower seed deterioration were studied during incubation for 2, 4, 6 and 8 days at 43 °C and a relative humidity of 100%. Parameters such as germination percentage, germination rate, seedling length, seedling vigor and protein decreased whereas electrical conductivity, fatty acids and lipid hydroperoxides increased during seed deterioration. Incre...

ژورنال: بوم شناسی آبزیان 2012
Ghodrati Shojaei, Mehdi , Noori Dafrazi, Reza , Taheri Mirghaed, Ali , Sourinejad, Iman , Taghavi Motlagh, Seyyed Amin ,

The simple linear model and catch data from Caspian Sea during a decade were used to assess the state of the fishery in this region. Also fishery trends were analysed to determine the catch fluctuation during the period. Fishing potential of the species for the following year was predicted. Catch trend analyses of bony fishes showed incremental or decreasing patterns for different species. Howe...

Examining the effects of climate change on the oak spatial distribution, as the main species of Zagros forests and its ecological and economic values is of significant importance. Here, we used species distribution models for simulating current climatic suitability of oak and its potential changes in 2050 and 2070. For this purpose, five regression-based and machine learning approaches, four cl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1388

this study investigated the potential role of age in inductive and deductive grammar learning among iranian foreign language learners. the experimental population consisted of our randomly selected samples including two groups of children (with age of exposure to english within 8-13), and two groups of adults (with age of exposure to english within 11-13). thus, the comparison was between ch...

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