منابع مشابه
Phd Research Students
Debate continues regarding the impact on infected farms of Ovine Johne’s disease (OJD), a chronic enteric disease of sheep caused by the bacterium Mycobacterium paratuberculosis. Accurate estimation of annual mortality rates and the proportion attributable to OJD could provide an insight into the financial significance of this disease. The study quantified OJD mortalities in 12 flocks across fo...
متن کاملPhd Research Students
Johne’s disease is characterised by a lengthy incubation period, measured in years. It is well known that cows with severe infections commonly shed the causative organism, Mycobacterium paratuberculosis, into their milk, and may also infect their unborn calf in utero. The organism can be isolated from extra-intestinal sites in such cases. There is a smaller body of evidence for this in sheep, b...
متن کاملIAEE European PhD-students Day Program
Modeling the optimal bid of wind power producers as price-makers is paramount for understanding the effect of their large-scale participation in electricity markets. We consider the problem of a wind power producer being a price-taker in the day-ahead market, but a price-maker in the balancing market, who aims at optimizing the expected revenues from these market floors. The problem is formulat...
متن کاملDoctoral Nursing Students’ Viewpoints about the Nursing PhD Curriculum
Introduction: Program evaluation is one of the strategies for developing and improving educational programs in every discipline and level of study. It also helps to improve the program effectiveness and efficacy. The aim of this study was to determine the doctoral nursing students’ viewpoints about the nursing PhD curriculum. Methods: A descriptive study was performed on 20 randomly selected d...
متن کاملEffective Factors on Attitudes toward Job Prospect among PhD Students
Background and Objectives: Job motivation is essential for effective employment. The aim of this study was to investigate affective factors on attitudes toward future job among PhD students in Hamadan University of Medical Sciences. Materials and Methods: This is a descriptive-cross-sectional study. The sample consisted of 81 Ph.D. students who were selected from different faculties based on a...
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ژورنال
عنوان ژورنال: Nature
سال: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/344010c0