Remediating Difficulties in Learning to Read and Spell by Teaching Kindergarten Students to Listen to Composite Words and Vocally Segment the Component Phonemes

In 2 experiments I used a delayed multiple probe design to test the effects of teaching students to vocally segment the component phonemes after listening to composite words on the emergence of untaught textual responses, spelling responses, and vocal phoneme blends. All participants were kindergarten students and had been selected because they could textually respond to and write graphemes but did not learn textual responses and spelling responses for words from instruction. There were 2 phases in Experiment I. In Experiment I, Phase 1, I examined the effect of teaching 3 students to vocally segment the component phonemes in a five-word subset of phonemically transparent Consonant-Vowel-Consonant (CVC) words on the emergence of (a) textual responses, (b) dictated written spelling responses (c) vocally blending the component phonemes into a composite word, and (d) vocally segmenting the component phonemes from untaught composite words. During the vocal phoneme segmentation intervention participants were vocally presented with a composite word and were taught to vocally segment and produce each component phoneme separately in the same sequential order as the component word (e.g., cat...c...a...t). Results showed that derived relations emerged across all topographies after learning to vocally segment the phonemes in 2 sets of consonant-vowel-consonant (CVC) words. In Phase 2, I used the same response topographies as Phase 1 using a set of 20 consonant-consonant-vowel-consonant (CCVC) words. All 3 participants demonstrated errors in which they did not include a fourth phoneme (e.g., spelling stop as sop). Results showed that learning to vocally segment a 5-word set of CCVC words established the essential stimulus control for correctly responding to CCVC words. Experiment II was a systematic replication (Sidman, 1960) of Experiment I, Phase 1, which included extra measures of learning and experimental control. Five participants acquired untaught derived relations after learning to vocally segment the component phonemes in composite CVC words. The participants in Experiment II required between 2 and 3 instructional sets before demonstrating derived learning. An additional measure showed that the rate of learning for textual responses increased across all participants after the intervention. Results also showed that verbal operants learned before the intervention joined with the newly acquired spelling repertoire for some participants after the intervention. The results from both experiments demonstrated that children who can identify phonemes and graphemes, but do not learn to textually respond and spell from instruction will acquire those skills as a function of learning the relationship between composite words and the component phonemes through vocal phoneme segmentation

SMEs and BIM in preparation for 2016: a case study.

The UK Government has mandated the use of Level 2 Building Information Modelling (BIM) on all publicly funded projects above £5 million by 2016. As a major construction client, the government would hope to see the widespread adoption of BIM throughout the industry as the requirements disseminate through the supply chain. The drive towards this target has been accompanied by much publicised advances in the information technology associated with BIM but while many larger firms in the construction industry are well advanced in their plans to implement the government plans, a large proportion of SMEs are not so well prepared for the deadline. The National Federation of Builders (2012) found that 81% of SMEs have either no familiarity or a vague familiarity with the levels of BIM. Findings such as this have led to fears of an emerging two tier industry. This study aims to determine the extent of readiness of SMEs to meet the requirements using a live case study, and examines the barriers that such firms working in this environment may encounter. The case study emphasises the benefits of the adoption of a collaborative mindset, underpinned by IT tools, which is the concept behind the government definition of BIM. However, research has shown that significant barriers still exist among SMEs to the adoption of BIM and this has been borne out by findings in this case study, though potential solutions to some of the issues are suggested

An Analysis of the Statewide Shortage of ABA Professionals in New York

Support services for many Autistic students in schools is critical. Behavior analysts are one type of service provider who offer support services in and outside of school settings to Autistic students. As behavioral support services are increasing in educational settings, it is important to ensure there are a sufficient number of professionals trained to provide high quality and compassionate support. However, there may not be enough state licensed providers to meet the growing need of students across the state of New York (NY). The supply of state licensed behavior analysts (LBAs) was calculated for the state of NY, its six regions, and its 62 individual counties to assess the shortage of providers. County level public data were used to compare the per capita supply of LBAs using caseload guidelines. The supply of LBAs did not meet the supply benchmark at the aggregate level or in any of the state’s six regions. Only four of the state\u27s 62 counties met the LBA supply benchmark. Shortages of service providers limit accessibility to support services and high caseloads can impact service quality. Suggestions for changes that may increase accessibility to behavior analytic supports and services in NY to those seeking services are discussed

The CIV-MgII Kinematics Connection in <z>~0.7 Galaxies

We have examined Faint Object Spectrograph data from the Hubble Space Telescope Archive for CIV 1548,1550 absorption associated with 40 MgII 2796,2803 absorption-selected galaxies at 0.4 < z < 1.4. We report a strong correlation between MgII kinematics, measured in 6 km/s resolution HIRES/Keck spectra, and W_r(1548); this implies a physical connection between the processes that produce "outlying velocity" MgII clouds and high ionization galactic/halo gas. We found no trend in ionization condition, W_r(1548)/W_r(2796), with galaxy-QSO line-of-sight separation for 13 systems with confirmed associated galaxies, suggesting no obvious ionization gradient with galactocentric distance in these higher redshift galaxies. We find tentative evidence (2-sigma) that W_r(1548)/W_r(2796) is anti-correlated with galaxy color; if further data corroborate this trend, in view of the strong CIV-MgII kinematics correlation, it could imply a connection between stellar populations, star formation episodes, and the kinematics and ionization conditions of halo gas at z~1.Comment: Accepted to Astrophysical Journal Letters; 4 pages; 3 figures; emulateapj.st

Motivational factors influencing farming practices in northern Ghana

Socio-economic factors that influence the adoption of management practices and technologies by farmers have received wide attention in the adoption literature, but the effects of socio-psychological farmer features such as perceptions and motivations have been analysed to a lesser extent. Using farm household survey data from three regions in northern Ghana, this study explores farmers’ motivations and perceived adoption impediments for three sustainable intensification practices (SIPs): improved maize varieties, cropping system strategies, and combined SIPs (i.e. improved maize and cropping system strategies), and the effect of motivational factors on decisions to adopt SIPs. First, explorative factor analysis (EFA) was used in identifying factors of motivations and impediments for adoption of SIPs. Then, a multinomial logit model was used to analyze the effect of socio-economic farm characteristics and motivational factors on farmers’ decisions to adopt SIPs. EFA identified three motivational factors: personal satisfaction, eco-diversity and eco-efficiency, which differed in importance between the three regions. Across these regions, higher scores for aspects of personal satisfaction were associated with lower interest in improved maize varieties compared to cropping system strategies, while the opposite was true for eco-efficiency which was related to a stronger preference for improved maize varieties. Uncertainty, absence of social support, and resource constraints were identified as impediment factors. The logit model demonstrated that extension services seemed to support the use of improved maize varieties more than the implementation of cropping system strategies. We conclude that motivational factors significantly influence farmer adoption decisions regarding sustainable intensification practices and should be considered systematically in combination with socio-economic farm features and external drivers to inform on-farm innovation processes and supporting policies.</p

Disc formation in turbulent massive cores: Circumventing the magnetic braking catastrophe

We present collapse simulations of 100 M_{\sun}, turbulent cloud cores threaded by a strong magnetic field. During the initial collapse phase filaments are generated which fragment quickly and form several protostars. Around these protostars Keplerian discs with typical sizes of up to 100 AU build up in contrast to previous simulations neglecting turbulence. We examine three mechanisms potentially responsible for lowering the magnetic braking efficiency and therefore allowing for the formation of Keplerian discs. Analysing the condensations in which the discs form, we show that the build-up of Keplerian discs is neither caused by magnetic flux loss due to turbulent reconnection nor by the misalignment of the magnetic field and the angular momentum. It is rather a consequence of the turbulent surroundings of the disc which exhibit no coherent rotation structure while strong local shear flows carry large amounts of angular momentum. We suggest that the "magnetic braking catastrophe", i.e. the formation of sub-Keplerian discs only, is an artefact of the idealised non-turbulent initial conditions and that turbulence provides a natural mechanism to circumvent this problem.Comment: 6 pages, 5 figures, accepted by MNRAS Letters, updated to final versio

In vivo evaluation of edge-loading in metal-on-metal hip resurfacing patients with pseudotumours

Objectives: Pseudotumours (abnormal peri-prosthetic soft-tissue reactions) following metal-on-metal hip resurfacing arthroplasty (MoMHRA) have been associated with elevated metal ion levels, suggesting that excessive wear may occur due to edge-loading of these MoM implants. This study aimed to quantify in vivo edge-loading in MoMHRA patients with and without pseudotumours during functional activities. Methods: The duration and magnitude of edge-loading in vivo was quantified during functional activities by combining the dynamic hip joint segment contact force calculated from the three-dimensional (3D) motion analysis system with the 3D reconstruction of orientation of the acetabular component and each patient’s specific hip joint centre, based on CT scans. Results: Edge-loading in the hips with pseudotumours occurred with a four-fold increase in duration and magnitude of force compared with the hips without pseudotumours (p = 0.02). Conclusions: The study provides the first in vivo evidence to support that edge-loading is an important mechanism that leads to localised excessive wear (edge-wear), with subsequent elevation of metal ion levels in MoMHRA patients with pseudotumours