INTRODUCTION We analyse the factors that are associated with the diagnostic yield of needle brain biopsy. MATERIAL AND METHODS We present a retrospective series of 124 consecutive biopsies in a 30-month period. Patients' demographics (age, gender), lesion topography (side, location, depth), lesion characteristics (histology, volume, radiological enhancement), type of biopsy procedure (freehan...

In the semi-arid tropics, over two-third’s of the world’s people depend on agriculture within which livestock play a major role in building rural livelihoods. Crop residues (fodder/stover) are important feed resources for ruminants. This review was undertaken with the objective of improving understanding of the role of various crop management factors in affecting the productivity and quality of...

a r t i c l e i n f o Keywords: Estimation of term structure of interest rate Financial reforms Latent factor extraction Level Monetary policy Yield curve movements The article identifies principal reasons underlying the movements of yield curve for government debt market in India for the period Jul '97 to Dec '11. The study finds that though statistically Svensson's (SV) (1994) model outperfor...

the aim of this research is study about influence of companies financial factors on volume of them shares traded in tehran stock exchange and classification of these financial factors on the basis of their effect on volume of shares traded. first, the relation of each above financial factors and “rial amount of trading volume” has studied separately. so it is used of correlation coefficient and...

Production functions to explain regional wheat yields have not been studied extensively in the Canadian prairies. The objective of this study is to employ a Just-Pope production function to examine the relationship between fertilizer inputs, soil quality, biodiversity indicators, cultivars qualifying for Plant Breeders’ Rights (PBR), and climatic conditions on the mean and variance of spring wh...

CONTENTS Introduction: Handling multiple risk factors 1. Methodological introduction 2. Non-parallel risk, duration bucketing and partial durations 3. Limitations of key rate duration analysis I Principal component analysis 1. Definition and examples from US Treasury market 2. Meaningfulness of factors: dependence on dataset 3. Correlation structure and other limitations of the approach II Inte...