Substitutability
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Sustentabilidade: estado da arte e um estudo de evento sobre o índice de sustentabilidade empresarial
A sustentabilidade se tornou tema recorrente em estudos de áreas diversas. O principal foco desses estudos é a definição da sustentabilidade, bem como o desenvolvimento de ferramentas para operacionalizá-la e, portanto agregar valor. Dado o aspecto interdisciplinar do tema, as propostas de solução a essas questões são de naturezas distintas, origina
Publicado em: 2008
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2. Comment on Hellinger's "Substitutability Among Different Types of Care Under Medicare".
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3. The substitutability of outpatient primary care in rural community health centers for inpatient hospital care.
To determine whether outpatient medical care obtained at federally funded rural community health centers (CHCs) in Maine acts primarily as a substitute or as a complement to inpatient care, a study of 36 communities served by CHCs was conducted. The hospital use of CHC users (age- and sex-adjusted admissions, days, and length of stay) was compared with that
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4. Determinants of hospital utilization in the Netherlands.
Hospital use in the Netherlands is examined in a cross-section analysis of 1969 and 1971 data for 120 service regions. Elasticities of admissions with respect to bed supply and supply of general practitioners are calculated, and the substitutability of first level care (by general practitioners) for hospital care is considered. Substitution effects found ind
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5. Protein tolerance to random amino acid change
Mutagenesis of protein-encoding sequences occurs ubiquitously; it enables evolution, accumulates during aging, and is associated with disease. Many biotechnological methods exploit random mutations to evolve novel proteins. To quantitate protein tolerance to random change, it is vital to understand the probability that a random amino acid replacement will le
National Academy of Sciences.
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6. Substitutability among different types of care under Medicare.
The question of whether Medicare coverage of outpatient services, nursing home care, and home health care reduced the use of short-term hospitals by Medicare beneficiaries, and whether reduced hospital use saved the Medicare program money, is reexamined by use of a simultaneous-equations model estimated by the two-stage least-squares method. It is argued tha
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7. Analysis of nursing home use and bed supply: Wisconsin, 1983.
This article presents evidence that in 1983 excess demand was a prevailing characteristic of nursing home care markets in Wisconsin, a state with one of the highest bed to elderly population ratios. It further shows that excess demand is the source of at least three types of error in use-based estimates of the determinants of the need for nursing home care.
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8. Correlation analysis of amino acid usage in protein classes.
We present a comparative study of residue usage correlations of various organism protein sets of diverse phylogenetic species and of open reading frames of several large human viral genomes. Our correlation analysis reveals three major tendencies: (i) charge compensation reflected by the high correlation of basic with acidic residues; (ii) the positive corre
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9. Are there ecological limits to population?
Policy on population and environment in the United States and abroad has been vacillating, unsure of its course; it would be more decisive if the several disciplines could agree on the nature of the problems and their urgency. The two disciplines principally concerned are biology and economics, and the contribution of this paper is to identify eight of the m
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10. DNA polymerase active site is highly mutable: Evolutionary consequences
DNA polymerases contain active sites that are structurally superimposable and highly conserved in sequence. To assess the significance of this preservation and to determine the mutational burden that active sites can tolerate, we randomly mutated a stretch of 13 amino acids within the polymerase catalytic site (motif A) of Thermus aquaticus DNA polymerase I.
The National Academy of Sciences.