Effect of sinus surgery on pulmonary function in patients with cystic fibrosis

The rare case of neurilemmoma of the larynx was presented. The difficulties in histopathologic diagnosis of such tumors were emphasized. The tumor was removed by surgery from external approach.     

ACT3: a high-speed, high-precision electrical impedance tomograph

Presents the design, implementation, and performance of Rensselaer's third-generation adaptive current tomograph, ACT3. This system uses 32 current sources and 32 phase-sensitive voltmeters to make a 32-electrode system that is capable of applying arbitrary spatial patterns of current. The instrumentation provides 16 b precision on both the current values and the real and reactive voltage readings and can collect the data for a single image in 133 ms. Additionally, the instrument is able to automatically calibrate its voltmeters and current sources and adjust the current source output impedance under computer control. The major system components are discussed in detail and performance results are given. Images obtained using stationary agar targets and a moving pendulum in a phantom as well as in vivo resistivity profiles showing human respiration are shown     

Temperament and attention: Orienting toward and away from positive and negative signals.

Two studies used a target detection task to examine temperament-related attentional biases toward and away from significant stimuli. Pretarget cues were used to orient attention to locations carrying a positive incentive value (where points could be gained) or a negative value (where points could be lost). Under both involuntary and voluntary conditions, extraverts were slow to shift attention away from positive locations, whereas introverts were slow to shift from negative locations. These biases were enhanced on trials following negative feedback and tended to be strongest in Ss high in Neuroticism. The findings support models proposing that Extraversion reflects the combined activity of positive (strongest in extraverts) and negative (strongest in introverts) incentive motivational processes. They further suggest that incentive processes regulate the ability to shift attention away from, rather than toward, significant stimuli. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ohmic contacts to semiconducting diamond using a Ti/Pt/Au trilayer metallization scheme

Ohmic contacts have been fabricated on a naturally occurring type IIb diamond crystal using an annealed Ti/Pt/Au trilayer metallization where the Pt served successfully as a barrier to Ti diffusion into the Au capping layer. However, a specific contact resistance could not be reliably determined using transmission line model measurements. Auger microanalysis revealed the presence of Ti on the diamond surface near the ohmic contact pads. The most likely origin of the Ti on the diamond surface was determined to be lateral diffusion from beneath the contact pads. This would have produced a nonuniform concentration of Ti across the diamond surface which, in turn, would have affected the diamond sheet resistance in a complicated way.     

Blasting Open a Choice Space: Learning Inflectional Morphology for NLP

This article discusses the various aspects of designing a system for eliciting knowledge about language from informants. For each design aspect, various options for implementation are presented, along with their pros, cons, and repercussions for other parts of the knowledge elicitation system. A running example throughout the text is taken from the paradigmatic morphology elicitation module of a system called Boas, which elicits knowledge to support a machine translation system. The main point of the article is an argument about the necessity to analyze the design choice space for complex natural language processing (NLP) systems early, comprehensively, and overtly.     

Parameterizing and Eliciting Text Elements across Languages for Use in Natural Language Processing Systems

This paper analyzes the structure and meaning of text elements cross-linguistically and discusses how that information can be elicited from people in a way that is directly useful for NLP applications. We describe a recently developed computer-based linguistic knowledge elicitation system that initiates a new paradigm of knowledge acquisition methodologies for NLP. In particular, we describe the natural language phenomena the system seeks to cover, the approach to knowledge elicitation and its rationale, the elicitation modules themselves, and broader implications of this work.     

The Influence of Prior Commitment on the Reactions of Layoff Survivors to Organizational Downsizing.

Nurses (N := 179; Study 1) and managers (N = 154; Study 2) participated in 2 panel studies examining the relationship among prior commitment (affective and continuance commitment and perceived organizational support), coping strategies, and survivors' attitudes and perceptions during and following downsizing. In Study 1, perceived organizational support was significantly positively related to control-oriented coping, job satisfaction, and intention to remain and negatively related to perceived job insecurity and burnout 2 years later. In Study 2, coping mediated the relationship between the prior commitment variables and job alienation, health symptoms, and burnout following the downsizing. Control-oriented coping was associated with elevated levels of health symptoms and burnout following the downsizing, suggesting that control-oriented coping may have positive effects in the short term but potentially harmful effects in the long term. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Applying Earthquake Risk Analysis Techniques to Land Use Planning

Recently developed methods of risk analysis are capable of modeling variations in earthquake hazard and its resultant damage to urban development. This type of risk analysis can provide useful information for land use decisions. Our article describes a probabilistic approach to earthquake risk analysis, which begins by estimating and mapping the expected level of ground motion over a study area. Areas subject to the earthquake-induced secondary hazards of landsliding and liquefaction are identified and combined with ground motion to describe the overall hazard. Damage estimates (by type of structure) can be produced for either the existing land use pattern or alternative future scenarios; that information can be used to evaluate alternative land use patterns in terms of their potential for earthquake damage. To illustrate the approach we use a case study application of earthquake risk analysis techniques to an area in San Luis Obispo County, California. We summarize the reactions of several practicing planners to this method of earthquake risk assessment, and we discuss the implications of improved risk analysis techniques for land use planning.