Vegetative Spread of Dioecious Hydrilla Colonies in Experimental Ponds

Stolon formation and fragmentation are two vegetative mechanisms by which hydrilla colonies expand. These two mechanisms of spread were studied in ponds located in Lewisville, TX over a two-year period. Stolons were determined to be the predominant mechanism for localized expansion in undisturbed areas. While some fragments were produced, they accounted for only 0.1% of the establishment of rooted plants in new quadrats. Peak production of fragments occurred in October and November, with fragment densities of 0.15 N m-2 d-1. Expansion by stolons occurred between June and November of each year, with higher rates of spread (up to 4.0 cm d-1 radial growth) observed in the second season

Remote sensing program activity report

Major accomplishments in an effort to encourage investigation and technology transfer for practical applications of remote sensing to solve Earth resources problems in Vermont include: (1) acquisition, installation, and operation of the ORSER digital processing system on the University's IBM 3031 computer; (2) acquisition and operation of printing and CRT computer terminals for remote access to computer facilities for analysis of remotely sensed digital tape; (3) acquisition and operation of optical interpretation and image transfer devices for use with all types of aerial photography; (4) development of audio visual and other training materials for use in presentations, workshops, and short courses to enhance technology transfer; and (5) cooperation government agencies in demonstration projects to show the feasibility of using remote sensing technology

Moral hazard under commercial and universal banking

Many claims have been made about the potential benefits, and the potential costs, of adopting a system of universal banking in the United States. We evaluate these claims using a model where there is a moral hazard problem between banks and “borrowers,” a moral hazard problem between banks and a deposit insurer, and a costly state verification problem. Under conditions we describe, allowing banks to take equity positions in firms strengthens their ability to extract surplus, and exacerbates problems of moral hazard. The incentives of universal banks to take equity positions will often be strongest when these problems are most severe.Universal banks

Deposit insurance: a reconsideration

This paper undertakes a simple general equilibrium analysis of the consequences of deposit insurance programs, the way in which they are priced and the way in which they fund revenue shortfalls. We show that the central issue is how the government will make up any FDIC losses. Under one scheme for making up the losses, we show that FDIC policy is irrelevant: it does not matter what premium is charged, nor does it matter how big FDIC losses are. Under another scheme, all that matters is the magnitude of the losses. And there is no presumption that small losses are “good.” We also show that multiple equilibria can be observed and Pareto ranked. Some economies may be “trapped” in equilibria with inefficient financial systems. Our analysis provides counterexamples to the following propositions. (1) Actuarially fair pricing of deposit insurance is always desirable. (2) Implicit FDIC subsidization of banks through deposit insurance is always undesirable. (3) “Large” FDIC losses are necessarily symptomatic of a poorly designed deposit insurance system.Deposit insurance

Inflation, financial markets and capital formation

Capital ; Financial markets ; Inflation (Finance)

Alien Registration- Smith, John H. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/26582/thumbnail.jp

Fear, frustration and the will to overcome: A social history of poliomyelitis in Western Australia

This thesis investigates community responses to Poliomyelitis, and the Impact of the disease on those who experienced It, particularly during the epidemics that occurred In Western Australia between 1938 and 1956. The research sources an.: W.A. Health Department records, held mostly at the Battye Library, records held by Australian Archives and Royal Perth Hospital, newspaper reports, comparative studies from several states in Australia and overseas, oral history interviews, biographies and personal records. The history of polio has several layers and the presence or the disease In the community evoked varied and ambiguous reactions, summarised here as fear, frustration and the will to overcome. I have examined the discussion the virus generated amongst members of the public. researchers, health professionals and polio survivors, In order to draw conclusions about the relationship between disease and western society. Polio evoked greater level of fear amongst all members of the community, compared with other Infectious diseases which had a far higher mortality rate. The behaviour of the polio virus challenged theories of Infection current during the first half of the twentieth century. Health and scientific professionals, and the general public, were frustrated by a lack of accurate knowledge concerning the disease. Uncertainty led to the Implementation of a variety of preventative measures, some of which, such as quarantine, were unpopular while others, such as nasal clips, were ineffective. Research aimed at developing a vaccine to conquer the Virus was maintained but scientific and medical professionals disagreed amongst themselves, while members of the general public questioned their capabilities and offered their own homespun solutions. At the same time polio survivors were often noted for their determined efforts to recover from the effects of paralysis

The Impacts of North American BSE Discoveries on U.S. and Canadian Cattle Prices

Demand and Price Analysis, Research and Development/Tech Change/Emerging Technologies,

Coded-aperture imaging in nuclear medicine

Coded-aperture imaging is a technique for imaging sources that emit high-energy radiation. This type of imaging involves shadow casting and not reflection or refraction. High-energy sources exist in x ray and gamma-ray astronomy, nuclear reactor fuel-rod imaging, and nuclear medicine. Of these three areas nuclear medicine is perhaps the most challenging because of the limited amount of radiation available and because a three-dimensional source distribution is to be determined. In nuclear medicine a radioactive pharmaceutical is administered to a patient. The pharmaceutical is designed to be taken up by a particular organ of interest, and its distribution provides clinical information about the function of the organ, or the presence of lesions within the organ. This distribution is determined from spatial measurements of the radiation emitted by the radiopharmaceutical. The principles of imaging radiopharmaceutical distributions with coded apertures are reviewed. Included is a discussion of linear shift-variant projection operators and the associated inverse problem. A system developed at the University of Arizona in Tucson consisting of small modular gamma-ray cameras fitted with coded apertures is described

Inflation and financial market performance

An exploration of the cross-sectional relationship between inflation and an array of indicators of financial market conditions, using time-averaged data covering several decades and a large number of countries.Financial markets ; Inflation (Finance)