scholars have long been interested in the role of population and its impact on the economy of various countries, hence the theories on the subject. while malthus’ population theory presents a very pessimistic view and is formulated in a context which does not correspond to the conditions of the modern world, it occupies the minds of a majority of economists. it is interesting to know, while mal...

Our objective was to evaluate the correlated responses to selection for litter size and its components after 10 generations of divergent selection for uterine capacity (UC). A total of 294 intact females from the 11th and 12th generations of divergent selection for high and low UC and from a cryopreserved control population was used (139, 112, and 43 females, respectively). Uterine capacity was...

Objectives: To describe the characteristics, treatment, and outcomes of active infective endocarditis (IE) in Europe. Design: Prospective survey of medical practices in Europe. Setting: 92 centres from 25 countries. Patients: The EHS (Euro heart survey) on valvar heart disease (VHD) enrolled 5001 adult patients between April and July 2001. Of those, 159 had active IE. Results: 118 patients (74%...

BACKGROUND The risks of infective endocarditis (IE) associated with various conditions and procedures are poorly defined. METHODS AND RESULTS This was a population-based case-control study conducted in 54 Philadelphia, Pa-area hospitals from 1988 to 1990. Community-acquired IE cases unassociated with intravenous drug use were compared with matched community residents. Subjects were interviewe...

We survey the evaluation methodology adopted in Information Extraction (IE), as defined in the MUC conferences and in later independent efforts applying machine learning to IE. We point out a number of problematic issues that may hamper the comparison between results obtained by different researchers. Some of them are common to other NLP tasks: e.g., the difficulty of exactly identifying the ef...

OBJECTIVES To describe the characteristics, treatment, and outcomes of active infective endocarditis (IE) in Europe. DESIGN Prospective survey of medical practices in Europe. SETTING 92 centres from 25 countries. PATIENTS The EHS (Euro heart survey) on valvar heart disease (VHD) enrolled 5001 adult patients between April and July 2001. Of those, 159 had active IE. RESULTS 118 patients (...

the present study was carried out to characterize the cervical mucus (cm) collected when inseminating holstein cows and to relate the secretion pattern with pregnancy. the mucus was collected from mid-cervix of 64 cows with spontaneus estrus (se) and induced estrus (ie). the quantity, pattern and consistency of the mucus, ph, arborization patterns and the sperm motility were observed. the level...