7,908 research outputs found
A qualitative study of adjustment to caring for an older spouse with psychiatric illness
An understanding of ways in which older carers' perceptions of their marital relationship and duty to their spouse underlie adjustment to care-giving is required for the development of acceptable and efficacious services for spouse carers. With this aim we conducted qualitative interviews with 20 spouses Of older people with a mental illness identified in a representative community study. While carers acknowledged distressing changes in their spouse, a history of reciprocity and intimacy emerged, comprising positive themes and perceived continuity which favourably influenced adjustment to care-giving. Those who still experience closeness in the relationship see themselves as coping and are reluctant to accept formal help. Others describe long-term unhappiness in marriage and experience feelings of entrapment in the role of carer. They require early and comprehensive services. Hypotheses regarding these themes are proposed
The Mediterranean Fruit Fly: Efficient Dynamic and Static Phytosanitary Measures, Information Values, and Current Policy
A bioeconomic model is used to examine efficient dynamic and static phytosanitary policies (cold treatment periods) designed to maximize the annual present value of net monthly U.S. welfare associated with trade in commodities that serve as hosts for the Mediterranean fruit fly (medfly). Accounting for the presence of the current U.S. medfly detection and control program, efficient dynamic and static policies require less cold treatment and increase U.S. welfare 9% and 3%, respectively, relative to the current minimum 14-day treatment period. The potential value of adjusting treatment periods regularly using available information on medfly pressure abroad is shown to be nontrivial.Food Consumption/Nutrition/Food Safety, International Relations/Trade,
Establishing a Baseline for Nitrogen Policy Assessment
nitrogen, nitrogen use efficiency, nitrogen management, Environmental Economics and Policy,
Research on computational and display requirements for human control of space vehicle boosters. Part 1 - Theory and results Final report, 22 Jun. - 22 Oct. 1966
Computational and display requirements for man-computer guidance and control techniques for reusable manned spacecraf
Investigation of analytical methods for efficient partitioning of on-board processing functions for remote sensing applications
Risk decomposition and ring theory, lattice techniques and universal algebras, and unary functions are considered
Economic Determinants of Invasion and Discovery of Nonindigenous Insects
Introductions of nonindigenous organisms into the United States have been linked to international trade. The individual contributions of imports, immigration, and international travel, however, are poorly understood because introduction dates are unavailable. We examine relationships between economic trends and discoveries of nonindegenous insects and use these relationships to infer the timing and determinants of introductions. We find that a few variables can explain much variation in species introductions and identifications. The most significant contributor to the introduction appears to be agricultural imports. Currently available proxies for academic effort are weak determinants of the probability that introduced species are identified.identifications, insects, introductions, invasive species, nonindegenous, Agribusiness, Crop Production/Industries, F18, N7, Q56,
Criminal neighbourhoods: does the density of prior offenders encourage others to commit crime?
Using crime data over a period of a decade for Glasgow, this paper explores whether the
density of prior offenders in a neighbourhoods has an influence on the propensity of others to
(re)commence offending. The study shows that the number of ‘newly active’ offenders in a
neighbourhood in the current quarter is positively associated with the density of prior
offenders for both violent and property crime from the previous two years. In the case of
‘newly active’ property offenders, the relationship with active prior offenders is only
apparent when prior offender counts exceed the median. The paper postulates that intraneighbourhood
social mechanisms may be at work to create these effects. The results suggest
that policies which concentrate offenders in particular neighbourhoods may increase the
number of ‘newly active’ offenders, and point to evidence of a threshold at which these
effects take place
Upgraded demonstration vehicle task report
Vehicle/battery performance capabilities and interface problems that occurred when upgraded developmental batteries were integrated with upgraded versions of comercially available electric vehicles were investigated. Developmental batteries used included nickel zinc batteries, a nickel iron battery, and an improved lead acid battery. Testing of the electric vehicles and upgraded batteries was performed in the complete vehicle system environment to characterize performance and identify problems unique to the vehicle/battery system. Constant speed tests and driving schedule range tests were performed on a chassis dynamometer. The results from these tests of the upgraded batteries and vehicles were compared to performance capabilities for the same vehicles equipped with standard batteries
Preliminary Assessment of Nitrous Oxide Offsets in a Cap and Trade Program
Nitrous oxide is a powerful greenhouse gas that is emitted from cropland treated with nitrogen fertilizer. Reducing such emissions through nutrient management might be able to produce offsets for sale in a cap and trade program aimed at reducing greenhouse gases. We use the Nitrate Leaching and Economic Analysis Program (NLEAP) model and data from the Agricultural and Resource Management Survey to examine what changes in rate, timing, or method of application a farmer would take to produce offsets. We find that reducing the application rate is the most favored approach for producing offsets. We also find that some management choices may increase nitrate losses to water.nitrous oxide, nutrient management, cap and trade, NLEAP, greenhouse gas, Environmental Economics and Policy,
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