501 research outputs found
Recapitalizing Banks with Public Funds
Recapitalizing banks in a systemic crisis is a complex medium-term process that requires significant government intervention and careful management at both the strategic and individual bank levels. This paper examines the range of operational and strategic issues involved and the institutional arrangements needed to foster an effective banking system restructuring, as well as maximize the returns on government investment. Recapitalization approaches have varied in the different mixes of direct capital injections and asset purchases and rehabilitation that countries choose. The choice of an appropriate mix is critical to minimizing the expected present value of government outlays net of recoveries. Copyright 2001, International Monetary Fund
Interventions in Banks During Banking Crises: The Experience of Indonesia
https://www.imf.org/en/Publications/IMF-Policy-Discussion-Papers/Issues/2016/12/30/Interventions-in-Banks-During-Banking-Crises-The-Experience-of-Indonesia-352
Evaluation of Insecticides for the Management of Insect Pests of Tomato, Solanum Lycopersicon L.
Field studies were undertaken in Kumasi, Ghana in 2012 and 2013 to evaluate the efficacy of two insecticides i.e. Lambda Super 2.5 EC (a.i- lambda cyhalothrion) and Cymethoate Super EC (a. i.-cypermethrin and cymethoate) for the management of insect pests on tomato, Solanum lycopersicum L. Lambda Super was applied at 1.5 ml/0.5 L of water whilst Cymethoate Super was applied at 0.25 ml/0.5 L of water. A control plot (water application only) was also maintained. Whiteflies, Bemisia tabaci (Gennadius), thrips, Thrips tabaci Lindeman, aphids, Aphis gossypii (Glover), leaf miners, Liriomyza sp. and the tomato fruit worm, Helicoverpa armigera (Hubner) were the most important insect pests collected on tomato in the area. In 2012, there were no significant differences among the insecticide-treated plots and the control with respect to the densities of B. tabaci, A. gossypii, Liriomyza sp. and H. armigera. Cymethoate Super treated plots recorded significantly lower number of T. tabaci than the control plots. However, in 2013, the control plots recorded significantly more aggregations of B. tabaci, H. armigera and A. gossypii than the Lambda Super and Cymethoate Super treated plots. No significant differences were obtained in the numbers of Liriomyza sp. and T. tabaci among the treatments. In 2012, the insecticide-treated plots recorded significantly higher fruit yield than the control but there were no significant differences among the treatments with respect to percent damaged fruits and mean shoot dry weight in 2013. Lambda Super and Cymethoate Super can be used to manage insect pests on tomato for increased yield. Keywords: Insecticides, efficacy, tomato pests, population densities, yiel
Long-term Evolution of Protostellar and Protoplanetary Disks. I. Outbursts
As an initial investigation into the long-term evolution of protostellar
disks, we explore the conditions required to explain the large outbursts of
disk accretion seen in some young stellar objects. We use one-dimensional
time-dependent disk models with a phenomenological treatment of the
magnetorotational instability (MRI) and gravitational torques to follow disk
evolution over long timescales. Comparison with our previous two-dimensional
disk model calculations (Zhu et al. 2009b, Z2009b) indicates that the neglect
of radial effects and two-dimensional disk structure in the one-dimensional
case makes only modest differences in the results; this allows us to use the
simpler models to explore parameter space efficiently. We find that the mass
infall rates typically estimated for low-mass protostars generally result in
AU-scale disk accretion outbursts, as predicted by our previous analysis (Zhu
et al. 2009a,Z2009a). We also confirm quasi-steady accretion behavior for high
mass infall rates if the values of -parameter for the magnetorotational
instability is small, while at this high accretion rate convection from the
thermal instability may lead to some variations. We further constrain the
combinations of the -parameter and the MRI critical temperature, which
can reproduce observed outburst behavior. Our results suggest that dust
sublimation may be connected with full activation of the MRI. This is
consistent with the idea that small dust captures ions and electrons to
suppress the MRI. In a later paper we will explore both long-term outburst and
disk evolution with this model, allowing for infall from protostellar envelopes
with differing angular momenta.Comment: Accepted to publish in Ap
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