Variation among American Elm Clones in Long-term Dieback, Growth, and Survival following Ophiostoma Inoculation

American elm cultivars: Variation in compartmentalization of infection by Ophiostoma novoulmi and its effects on hydraulic conductivity

Editor: S. Woodward Summary Five cultivars and two populations of wildtype seedlings of American elm (Ulmus americana), 3 and 4 years old, were examined for differences in their abilities to compartmentalize and resist infection by artificially inoculating with Ophiostoma novo-ulmi. Morphological characteristics of tree defence, often referred to as the compartmentalization of decay in trees mo...

the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus

از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...

Long-term survival following traumatic brain injury.

PURPOSE The study used a retrospective cohort design to establish long-term mortality rates and predictors of mortality for persons after moderate to severe traumatic brain injury (TBI). METHOD Consecutive records of persons with moderate to severe TBI who were discharged from a large rehabilitation hospital in Pittsburgh, Pennsylvania in the years 1974-1984, 1988 and 1989 were reviewed. RE...

Survival of Trypanosoma evansi, Theileria mutans, Babesia bigemina and Anaplasms marginale following long term maintenance at - 70°C

Study on two species of Ophiostoma in relation with Dutch elm disease in Iran

An investigation was carried out in some areas of Golestan Province including: Loveh forest, Soosara, Daland forest park, Tooskestan; Gilan Province including Siahkal and Asalem forests; Arasbaran and landscape of urban trees during 1999–2007. In this investigation, based on some morphological, physiological and molecular characteristics and also comparison with standard isolates two species Op...