Formation elastic properties near a borehole may be altered from their original state due to the stress concentration around the borehole. This can lead to an incorrect estimation of formation elastic properties measured from sonic logs. Previous work has focused on estimating the elastic properties of the formation surrounding a borehole under anisotropic stress loading. We studied the effect ...

Purpose: To examine whether quantitative 1-[C]glucoseor 2-[F]fluoro-2-deoxyglucose (FDG)-positron emission tomography performed before and/or after radiotherapy (RT) of malignant gliomas correlates with treatment outcome. Changes in metabolism between the start and finish of RT, and immediate post-RT studies have received little attention. Experimental Design: Adults with malignant gliomas were...

This paper is part of a series in which we had worked in the last 6 months, and, specifically, intend to investigate the notion of timbre through the ecological perspective proposed by James Gibson in his Theory of Direct Perception. First of all, we discussed the traditional approach to timbre, mainly as developed in acoustics and psychoacoustics. Later, we proposed a new conception of timbre ...

Delayed alternation tasks are frequently employed as probes of frontal lobe functioning. In order to clarify the neural substrates of delayed alternation performance in humans, we measured regional cerebral blood flow with H20 PET in healthy subjects as they performed delayed spatial and object alternation. Consistent with the monkey lesion literature, increased dorsolateral prefrontal activity...

Experimental data collected over the years, for defining limits of vibration exposure to human beings, have resulted in a set of vibration criteria specified in ISO Standard 2631. In this article, instrumentation requirements for evaluation of the responses of humans to vibration according to these criteria are described, as well as some of the pitfalls to be avoided during these measurements. ...

Since the generation of granular textures was first automated using a computer (Roads 1978), granular synthesis has grown to become a popular tool for creating new sounds in electro-acoustic music. Many effects can be achieved through the granulation of sampled sound including time compression (Jones and Parks 1988) and expansion (Truax 1990) independent of pitch alterations. Such effects can b...

Cepstral coe cients based on a constant Q transform have been calculated for 28 short (1-2 s) oboe sounds and 52 short saxophone sounds. These were used as features in a pattern analysis to determine for each of these sounds comprising the test set whether it belongs to the oboe or to the sax class. The training set consisted of longer sounds of 1 minute or more for each of the instruments. A k...

Distinctions are made between global and specific, personal and social, and trait and state self-esteem, and these are used to structure a review of over 40 studies concerning social identity theory’s hypothesis that (1) intergroup discrimination elevates self-esteem and (2) low self-esteem motivates discrimination. It is observed that researchers have tended to employ measures of global person...

Patient-generated data is increasingly common in chronic disease care management. Smartphone applications and wearable sensors help patients more easily collect health information. However, current commercial tools often do not effectively support patients and providers in collaboration surrounding these data. This paper examines patient expectations and current collaboration practices around p...

The introduction of speech synthesizers and modern acoustic analysis in the mid-20th century allowed speech perception research to flourish, encouraging a period of broadly-based empirical work. Experiments examined diverse influences from information processing (intelligibility, statistical decision-making), biology/psychology (audition, memory, learning, hemispheric dominance), and linguistic...