Oklahoma State University–Stillwater

About: Oklahoma State University–Stillwater is a education organization based out in Stillwater, Oklahoma, United States. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 18267 authors who have published 36743 publications receiving 1107500 citations. The organization is also known as: Oklahoma State University & OKState.

Development of the Fear of Pain Questionnaire-III

Abstract: Fear and/or anxiety about pain is a useful construct, in both theoretical and clinical terms. This article describes the development and refinement of the Fear of Pain Questionnaire (FPQ), which exists in its most current form as the FPQ-III. Factor analytic refinement resulted in a 30-item FPQ-III which consists of Severe Pain, Minor Pain, and Medical Pain subscales. Internal consistency and test-retest reliability of the FPQ-III were found to be good. Four studies are presented, including normative data for samples of inpatient chronic pain patients, general medical outpatients, and unselected undergraduates. High fear of pain individuals had greater avoidance/escape from a pain-relevant Behavioral Avoidance Test with Video, relative to their low fear counterparts, suggesting predictive validity. Chronic pain patients reported the greatest fear of severe pain. Directions for future research with the FPQ-III are discussed, along with general comments about the relation of fear and anxiety to pain.

General language performance measures in spoken and written narrative and expository discourse of school-age children with language learning disabilities.

Abstract: Language performance in naturalistic contexts can be characterized by general measures of productivity, fluency, lexical diversity, and grammatical complexity and accuracy. The use of such measures as indices of language impairment in older children is open to questions of method and interpretation. This study evaluated the extent to which 10 general language performance measures (GLPM) differentiated school-age children with language learning disabilities (LLD) from chronological-age (CA) and language-age (LA) peers. Children produced both spoken and written summaries of two educational videotapes that provided models of either narrative or expository (informational) discourse. Productivity measures, including total T-units, total words, and words per minute, were significantly lower for children with LLD than for CA children. Fluency (percent T-units with mazes) and lexical diversity (number of different words) measures were similar for all children. Grammatical complexity as measured by words per T-uni...

Edaphic factors and the landscape-scale distributions of tropical rain forest trees

Abstract: Tropical rain forests have the highest tree diversity on earth. Nonrandom spatial distributions of these species in relation to edaphic factors could be one mechanism responsible for maintaining this diversity. We examined the prevalence of nonrandom dis- tributions of trees and palms in relation to soil type and topographic position (''edaphic biases'') over a mesoscale (573 ha) old-growth tropical rain forest (TRF) landscape at the La Selva Biological Station, Costa Rica. All trees and palms $10 cm diameter were mea- sured and identified in 1170 circular 0.01-ha plots centered on an existing 50 3 100 m grid. Topographic position was classified for each plot, and slope and aspect were measured. Soil type data were taken from a previous study (Clark et al. 1998). A total of 5127 trees and palms were identified in 267 species. Detrended Correspondence Analysis and Canon- ical Correspondence Analysis showed that highly significant edaphic gradients were present, with swamp or highly fertile soils separated from the less fertile, well-drained upland soils. Species composition remained significantly related to topographic position when soil type was controlled for. The main floristic gradients were still significant when flooded sites were excluded from the analyses. Randomization tests on a weighted preference index were used to examine the relations of individual species to soil types and, within the dominant soil type, to topographic position. Of the 132 species with N $ 5 individuals, 33 showed significant associations with soil type. Within the dominant soil type, 13 of 110 analyzable species were nonrandomly associated with one or more topographic positions. For a variety of reasons, including issues relating to sample size and adequate edaphic characterization of landscapes, we suggest that the ;30% of species shown to be edaphically biased in this study is an underestimate of the true degree of edaphically related distri- butional biases. To evaluate this hypothesis will require mesoscale vegetation sampling combined with quantitative soil analyses at the same scale in a range of tropical rain forests. If edaphic distributional biases are shown to be common, this suggests that edaphically linked processes leading to differential recruitment are similarly common.

Using Electroencephalography to Measure Cognitive Load

Abstract: Application of physiological methods, in particular electroencephalography (EEG), offers new and promising approaches to educational psychology research. EEG is identified as a physiological index that can serve as an online, continuous measure of cognitive load detecting subtle fluctuations in instantaneous load, which can help explain effects of instructional interventions when measures of overall cognitive load fail to reflect such differences in cognitive processing. This paper presents a review of seminal literature on the use of continuous EEG to measure cognitive load and describes two case studies on learning from hypertext and multimedia that employed EEG methodology to collect and analyze cognitive load data.

Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data

Abstract: Detailed measurements of the electron performance of the ATLAS detector at the LHC are reported, using decays of the Z, W and J/psi particles. Data collected in 2010 at root s = 7 TeV are used, corresponding to an integrated luminosity of almost 40 pb(-1). The inter-alignment of the inner detector and the electromagnetic calorimeter, the determination of the electron energy scale and resolution, and the performance in terms of response uniformity and linearity are discussed. The electron identification, reconstruction and trigger efficiencies, as well as the charge misidentification probability, are also presented.