Valuation effects of foreign divestitures

This study assesses announcement period valuation effects of foreign divestitures and explains why these valuation effects vary among firms. Significant positive valuation effects are observed. The valuation effects of foreign divestitures are positive and are similar in magnitude to those of a matched control group of domestic divestitures. Results of a cross-sectional analysis suggest that valuation effects are positively related to the relative size of the divested unit. Valuation effects are more favorable when divestitures are for strategic reorganization purposes and/or to raise cash, and valuation effects are more favorable for foreign divestitures in industrialized host countries. Several important managerial implications emerge from the results of this study. © 1998 John Wiley & Sons, Ltd

Does An Industry Effect Exist For Initial Public Offerings?

We examine the impact of initial public offerings (IPOs) on rival firms and find that the valuation effects are insignificant. This insignificant reaction can be explained by offsetting information and competitive effects. Significant positive information effects are associated with IPOs in regulated industries and the first IPO in an industry following a period of dormancy. Significant negative competitive effects are associated with larger IPOs in competitive industries, those in relatively risky industries, those in high-performing industries, and those in the technology sector. IPO firms that use the proceeds for debt repayment appear to represent a more significant competitive threat to rival firms relative to IPO firms that use their proceeds for other purposes. © 2003 Blackwell Publishing Ltd

Fusarium species from the cassava root rot complex in West Africa

Fusarium species are a significant component of the set of fungi associated with cassava root rot. Yield losses due to root rot average 0.5 to 1 ton/ha but losses >3 ton/ha, an equivalent of 15 to 20% yield, often occur. This paper reviews previous work on cassava root rot and summarizes a few recent studies on Fusarium species associated with the disease. Our studies in Cameroon showed that 30% of rotted tubers were infected by Fusarium spp. 12 months after planting and represented 25% of all the fungal isolates recovered. Other commonly recovered fungi were Botryodiplodia theobromae and Armillaria spp. Numerous and diverse species of Fusarium were associated with rotted cassava roots in Nigeria and Cameroon. At least 13 distinct amplified fragment length polymorphism (AFLP) groups of Fusarium were distinguishable, each group probably a distinct species, and many of them might represent previously undescribed Fusarium species. The two largest of the AFLP groups correspond to F. oxysporum and F. solani species complex. The distribution of Fusarium spp. varied among countries and among locations within a country, suggesting that germ plasm resistant at one location may not be resistant at another. Fusarium spp. also cause seedling blight of cassava and can be recovered from the stems of infected plants up to 1 m above the ground. Therefore, the pathogen can spread with stems cut as planting material. Fusarium spp. also can colonize Chromolaena odorata, the dominant weed in short fallows, which could further complicate management efforts by serving as an alternative host for strains that colonize cassava

Neurorétinite stellaire bilatérale révélant une sténose de l’artère rénale

La neurorétinite stellaire est un syndrome clinique associant une perte brutale de l’acuité visuelle (AV), associant un oedème papillaire et des exsudats en étoile en périmaculaire. Les étiologies de cette affection, sont multiples. Elle doit faire rechercher une cause infectieuse chez le sujet jeune et une cause vasculaire chez le sujet âgé ; La neurorétinite stellaire idiopathique de Leber doit rester un diagnostic d’élimination. Nous rapportons l’observation clinique d’un patient âgé de 63 ans qui consulte pour une baisse bilatérale de l’acuité visuelle, évoluant depuis 3 semaines et chez qui l’examen ophtalmologique trouve une neurorétinite stellaire bilatérale. Le bilan infectieux était négatif et l’IRM orbito-cérébrale était normale.L’examen général a noté une tension artérielle à 270/160 mmHg. Et Le bilan étiologique a révélé une sténose de l’artère rénale droite. Après stabilisation de la tension artérielle, il y a eu régression de l’oedème papillaire et résorption des exsudats maculaires et une amélioration sur le plan fonctionnel

May measurement month 2018: an analysis of blood pressure screening results from Nigeria.

Hypertension remains the dominant cardiovascular risk factor worldwide. May Measurement Month (MMM) is an annual global programme of the International Society of Hypertension aimed at screening for undetected hypertension in the general population. We report the outcome of MMM 2018 in Nigeria. An opportunistic screening of adults aged at least 18 years was conducted in the six geopolitical zones of Nigeria in the month of May, 2018. Screening for hypertension was done by trained volunteers with the use of validated digital and mercury sphygmomanometers following the MMM protocol. Hypertension was defined as blood pressure (BP) ≥140/90 mmHg or the use of BP-lowering medication. There were 6398 participants (53.0% female) with a mean (SD) age of 41.7 (15.0) years. Hypertension was present in 36.4% of the participants with 51.1% of the hypertensives aware of their status, 41.8% on medication, of whom 43.1% were controlled. Overall, only 18.0% of all hypertensive participants had their BP under control. The proportion with hypertension is high, and awareness, treatment, and control rates are low. Concerted efforts are needed to improve awareness and treatment of hypertension in Nigeria in order to reduce the high rate of complications associated with uncontrolled BP