نتایج جستجو برای: dutch elm disease

تعداد نتایج: 1516060  

Journal: Iranian Economic Review 2015

Abstract In this paper, the effect of foreign sector macro-variable on inflation dynamics and firms’ pricing behavior has been investigated in the context of a small open economy New Keynesian Phillips Curve. This curve is derived and estimated for a developing oil-exporting economy suffering from Dutch Disease. This version of NKPC is an extension of Leith and Malley’s (2007) small open econom...

2006
M. Dvořák D. Palovčíková L. Jankovský

The health condition of the population of elms in the region of southern Bohemia was studied from the viewpoint of their decline, the occurrence of Dutch Elm Disease (DED) and the presence of other diseases. Of the total number of 105 elms in total 33 of them were without any symptoms of the disease or other damage. Elms regenerated quite spontaneously in the neighbourhood of mother trees and t...

The use of revenue from natural resources, including oil, has always attracted the attention of politicians, economists and political scientists as well as various social groups. Here, we study the optimal consumption of oil revenues under different interest rate and social discount rate scenarios, and presence of Dutch disease, using a dynamic computable general equilibrium approach.The result...

2016
Derya Avci Akif Dogantekin

Parkinson disease is a major public health problem all around the world. This paper proposes an expert disease diagnosis system for Parkinson disease based on genetic algorithm- (GA-) wavelet kernel- (WK-) Extreme Learning Machines (ELM). The classifier used in this paper is single layer neural network (SLNN) and it is trained by the ELM learning method. The Parkinson disease datasets are obtai...

Journal: :Plant Ecology 2023

Abstract Invasive fungal pathogens are an increasing problem globally and can cause strong effects on forest ecosystems. In this study, we contrast vegetation surveys in eutrophic elm ( Ulmus glabra ) ash Fraxinus excelsior forests southern Sweden, conducted just prior to the arrival of Dutch disease (DED) 1989, then again 2021, several years after dieback (ADB) began. At sample plot scale, spe...

Journal: :Forest Ecology and Management 2022

Under the continuous pressure of Dutch elm disease (DED) in Europe, increasing genetic diversity Ulmus minor trees resistant to Ophiostoma novo-ulmi is a priority for species conservation and reintroduction. In this work we screened 121 U. genotypes resistance O. under field experimental conditions. The had been previously obtained through controlled crosses between two moderately (dams) one su...

Journal: :تحقیقات اقتصادی 0
نادر مهرگان دانشیار اقتصاد، دانشگاه بوعلی سینا همدان، ایران. علیرضا دانش خواه استادیار دانشگاه کرانفیلد، کرانفیلد، انگلستان. امید چترآبگون استادیار دانشگاه ملایر، دانشکده علوم ریاضی و آمار روح اله احمدی کارشناس ارشد اقتصاد، دانشگاه آزاد اسلامی علوم و تحقیقات اهواز، ایران. فریبرز تیشه کنی مدرس دانشگاه پیام نور واحد هرسین، کرمانشاه، ایران.

in this paper, we examine influence oil shocks on macroeconomic variables and dutch disease phenomena when these variables encountered positive oil revenue shocks. statistical model which is copula approach is used to show when iran's macroeconomic variables encountered positive oil revenue casus dutch disease and oil revenue has non-symmetric influence on the growth economic. in another w...

2017
JACK H. BARGER ROY A. CUTHBERT

American elm trees, Ulmus americana L., were sprayed with methoxychlor by helicopter or mist blower, and twig crotches were collected from sprayed trees for bio­ assay of Scolytus multistriatus (Marsham) and GLC as­ say. Correlations established between the 2 assays were Dutch elm disease, caused by the fungus Cerato­ cystis ulmi (Buisman) C. Moreau, is a serious shade tree problem in the Unite...

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