7,620 research outputs found
Prediction of mutual diffusion coefficients for thermal conductivity data
Prediction of mutual diffusion coefficients for thermal conductivity data in gase
Podiatry
The use of the Lixiscope in podiatry was preliminarily evaluated. It is concluded that the possibilities for the Lixiscope's clinical use in podiatry seems endless
On blocks and runs estimators of extremal index
Given a sample from a stationary sequence of random variables, we study the blocks and runs estimators of the extremal index.
Conditions are given for consistency and asymptotic normality of these estimators. We show that moment restrictions assumed by Hsing (1991, 1993) may be relaxed if a stronger mixing condition holds. The CLT for the runs estimator seems to be proven for the first time
Resident Physicians' Preparedness to Provide Cross-Cultural Care: Implications for Clinical Care and Medical Education Policy
Recommends integrating cross-cultural training into medical school curricula, training faculty to ensure useful instruction and mentoring, and mandatory and formal evaluation of residents' cross-cultural communication skills
Global environmental effects of impact-generated aerosols: Results from a general circulation model
Cooling and darkening at Earth's surface are expected to result from the interception of sunlight by the high altitude worldwide dust cloud generated by impact of a large asteroid or comet, according to the one-dimensional radioactive-convective atmospheric model (RCM) of Pollack et al. An analogous three-dimensional general circulation model (GCM) simulation obtains the same basic result as the RCM but there are important differences in detail. In the GCM simulation the heat capacity of the oceans, not included in the RCM, substantially mitigates land surface cooling. On the other hand, the GCM's low heat capacity surface allows surface temperatures to drop much more rapidly than reported by Pollack et al. These two differences between RCM and GCM simulations were noted previously in studies of nuclear winter; GCM results for comet/asteroid winter, however, are much more severe than for nuclear winter because the assumed aerosol amount is large enough to intercept all sunlight falling on Earth. In the simulation the global average of land surface temperature drops to the freezing point in just 4.5 days, one-tenth the time required in the Pollack et al. simulation. In addition to the standard case of Pollack et al., which represents the collision of a 10-km diameter asteroid with Earth, additional scenarios are considered ranging from the statistically more frequent impacts of smaller asteroids to the collision of Halley's comet with Earth. In the latter case the kinetic energy of impact is extremely large due to the head-on collision resulting from Halley's retrograde orbit
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Coping with stress and locus of control.
This research is concerned with the differential ability of individuals to cope with stressful situations. It began with an effort to determine how a particualr individuals outlook on life rendered him more or less able to cope with stress. Therefore, literature relating belief systems to personality factors was surveyed, in hope of gaining some insight into the important determinants of adaptive as opposed to maladaptive belief systems
Survey and Analysis of Production Distributed Computing Infrastructures
This report has two objectives. First, we describe a set of the production
distributed infrastructures currently available, so that the reader has a basic
understanding of them. This includes explaining why each infrastructure was
created and made available and how it has succeeded and failed. The set is not
complete, but we believe it is representative.
Second, we describe the infrastructures in terms of their use, which is a
combination of how they were designed to be used and how users have found ways
to use them. Applications are often designed and created with specific
infrastructures in mind, with both an appreciation of the existing capabilities
provided by those infrastructures and an anticipation of their future
capabilities. Here, the infrastructures we discuss were often designed and
created with specific applications in mind, or at least specific types of
applications. The reader should understand how the interplay between the
infrastructure providers and the users leads to such usages, which we call
usage modalities. These usage modalities are really abstractions that exist
between the infrastructures and the applications; they influence the
infrastructures by representing the applications, and they influence the ap-
plications by representing the infrastructures
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