The impact of brief exposure to the second language on native language production: Global or item specific?

2019 ◽  
Vol 41 (1) ◽  
pp. 153-183
Author(s):  
Tamar Degani ◽  
Hamutal Kreiner ◽  
Haya Ataria ◽  
Farha Khateeb
Keyword(s):  
Language Production ◽  
Low Frequency ◽  
Error Rates ◽  
Control Mechanisms ◽  
Post Exposure ◽  
Before And After ◽  
Exposure Error ◽  
Language Context ◽  
Cross Language ◽  
The Impact

AbstractBilinguals routinely shift between their languages, changing languages between communicative settings. To test the consequences of such changes in language use, 48 Arabic–Hebrew bilinguals named pictures in Arabic (L1) before and after a brief exposure manipulation, including either reading a list of Hebrew (L2) words aloud or performing a nonlinguistic task. Half of the items post-exposure were new and half were translation equivalents of the words presented during the L2 exposure task. Further, half of the items were very low-frequency L1 words, typically replaced by borrowed L2 words. Results show that across word types bilinguals were less accurate and produced more L2 cross-language errors in their dominant L1 following brief L2 exposure. Error rates were comparable for translation equivalents and new items, but more cross-language errors were observed post-exposure on translation equivalents. These findings demonstrate the engagement of both global whole-language control mechanisms and item-based competitive processes, and highlight the importance of language context and the dynamic nature of bilingual performance.

scholarly journals Developing checklists to prevent diagnostic error in Emergency Room settings

Diagnosis ◽  
2014 ◽  
Vol 1 (3) ◽  
pp. 223-231 ◽  
Author(s):  
Mark L. Graber ◽  
Asta V. Sorensen ◽  
Jon Biswas ◽  
Varsha Modi ◽  
Andrew Wackett ◽  
...  
Keyword(s):  
Emergency Room ◽  
Diagnostic Errors ◽  
Evaluation Process ◽  
Diagnostic Error ◽  
Error Rates ◽  
Diagnostic Uncertainty ◽  
Maximum Benefit ◽  
Before And After ◽  
The Impact ◽  
Test Ordering

AbstractChecklists have been shown to improve performance of complex, error-prone processes. To develop a checklist with potential to reduce the likelihood of diagnostic error for patients presenting to the Emergency Room (ER) with undiagnosed conditions.Participants included 15 staff ER physicians working in two large academic centers. A rapid cycle design and evaluation process was used to develop a general checklist for high-risk situations vulnerable to diagnostic error. Physicians used the general checklists and a set of symptom-specific checklists for a period of 2 months. We conducted a mixed methods evaluation that included interviews regarding user perceptions and quantitative assessment of resource utilization before and after checklist use.A general checklist was developed iteratively by obtaining feedback from users and subject matter experts, and was trialed along with a set of specific checklists in the ER. Both the general and the symptom-specific checklists were judged to be helpful, with a slight preference for using symptom-specific lists. Checklist use commonly prompted consideration of additional diagnostic possibilities, changed the working diagnosis in approximately 10% of cases, and anecdotally was thought to be helpful in avoiding diagnostic errors. Checklist use was prompted by a variety of different factors, not just diagnostic uncertainty. None of the physicians used the checklists in collaboration with the patient, despite being encouraged to do so. Checklist use did not prompt large changes in test ordering or consultation.In the ER setting, checklists for diagnosis are helpful in considering additional diagnostic possibilities, thus having potential to prevent diagnostic errors. Inconsistent usage and using the checklists privately, instead of with the patient, are factors that may detract from obtaining maximum benefit. Further research is needed to optimize checklists for use in the ER, determine how to increase usage, to evaluate the impact of checklist utilization on error rates and patient outcomes, to determine how checklist usage affects test ordering and consultation, and to compare checklists generally with other approaches to reduce diagnostic error.

scholarly journals Transient perturbation of the left temporal cortex evokes plasticity-related reconfiguration of the lexical network

2019 ◽  
Author(s):  
Jana Klaus ◽  
Dennis J.L.G. Schutter ◽  
Vitória Piai
Keyword(s):  
Language Impairment ◽  
Language Production ◽  
Semantic Network ◽  
Brain Activity ◽  
Temporal Cortex ◽  
Naming Task ◽  
Error Rates ◽  
Middle Temporal Gyrus ◽  
Lexical Retrieval ◽  
Control Mechanisms

Language impairment is common after left-hemisphere damage. However, the involvement of perilesional and homologous contralateral regions in compensating for left-sided lesions remains poorly understood. The aim of this study was to examine acute organizational changes in brain activity related to conceptual and lexical retrieval in unimpaired language production following transient disruption of the left middle temporal gyrus (MTG). In a randomized singleblind within-subject experiment, we recorded the electroencephalogram from sixteen healthy participants during a context-driven picture-naming task. Prior to the task, the left MTG was perturbed with real neuronavigated continuous theta-burst stimulation (cTBS) or sham stimulation. During the task, participants read lead-in sentences that created a constraining (e.g. “The farmer milks the”) or non-constraining context (e.g. “The farmer buys the”). The last word was shown as a picture that participants had to name (e.g. “cow”). Replicating behavioral studies, participants were overall faster in naming pictures following a constraining relative to a non-constraining context, but this effect did not differ between real and sham cTBS. Real cTBS, however, increased overall error rates compared to sham cTBS. In line with previous studies, we observed a decrease in alpha-beta (8-24 Hz) oscillatory power for constraining relative to non-constraining contexts over left temporal-parietal cortex after participants received sham cTBS. However, following real cTBS, this decrease extended towards left prefrontal regions associated with both domain-general and domain-specific control mechanisms. Our findings provide evidence that immediately after the disruption of the left MTG, the lexical-semantic network is able to quickly reconfigure, also recruiting domain-general regions.

scholarly journals The Impact of Technology on Prescribing Errors in Pediatric Intensive Care: A Before and After Study

2020 ◽  
Vol 11 (02) ◽  
pp. 323-335 ◽  
Author(s):  
Moninne M. Howlett ◽  
Eileen Butler ◽  
Karen M. Lavelle ◽  
Brian J. Cleary ◽  
Cormac V. Breatnach
Keyword(s):  
Intensive Care ◽  
New Technology ◽  
Tertiary Care ◽  
Pediatric Intensive Care ◽  
Error Rates ◽  
Electronic Prescribing ◽  
Prescribing Errors ◽  
Before And After ◽  
The Impact ◽  
Before And After Study

Abstract Background Increased use of health information technology (HIT) has been advocated as a medication error reduction strategy. Evidence of its benefits in the pediatric setting remains limited. In 2012, electronic prescribing (ICCA, Philips, United Kingdom) and standard concentration infusions (SCIs)—facilitated by smart-pump technology—were introduced into the pediatric intensive care unit (PICU) of an Irish tertiary-care pediatric hospital. Objective The aim of this study is to assess the impact of the new technology on the rate and severity of PICU prescribing errors and identify technology-generated errors. Methods A retrospective, before and after study design, was employed. Medication orders were reviewed over 24 weeks distributed across four time periods: preimplementation (Epoch 1); postimplementation of SCIs (Epoch 2); immediate postimplementation of electronic prescribing (Epoch 3); and 1 year postimplementation (Epoch 4). Only orders reviewed by a clinical pharmacist were included. Prespecified definitions, multidisciplinary consensus and validated grading methods were utilized. Results A total of 3,356 medication orders for 288 patients were included. Overall error rates were similar in Epoch 1 and 4 (10.2 vs. 9.8%; p = 0.8), but error types differed (p < 0.001). Incomplete and wrong unit errors were eradicated; duplicate orders increased. Dosing errors remained most common. A total of 27% of postimplementation errors were technology-generated. Implementation of SCIs alone was associated with significant reductions in infusion-related prescribing errors (29.0% [Epoch 1] to 14.6% [Epoch 2]; p < 0.001). Further reductions (8.4% [Epoch 4]) were identified after implementation of electronically generated infusion orders. Non-infusion error severity was unchanged (p = 0.13); fewer infusion errors reached the patient (p < 0.01). No errors causing harm were identified. Conclusion The limitations of electronic prescribing in reducing overall prescribing errors in PICU have been demonstrated. The replacement of weight-based infusions with SCIs was associated with significant reductions in infusion prescribing errors. Technology-generated errors were common, highlighting the need for on-going research on HIT implementation in pediatric settings.

scholarly journals Improved Sample Quality and Decreased Turnaround Time When Using Plasma Blood Collection Tubes with a Mechanical Separator in a Large University Hospital

2020 ◽  
Author(s):  
Pierre-Olivier Hétu ◽  
Sacha Hobeila ◽  
François Larivière ◽  
Marie-Claire Bélanger
Keyword(s):  
Clinical Chemistry ◽  
Turnaround Time ◽  
Error Rates ◽  
University Hospital ◽  
Blood Collection ◽  
Sample Quality ◽  
Paired Samples ◽  
Deming Regression ◽  
Before And After ◽  
The Impact

Abstract Background Serum is commonly used for clinical chemistry testing but many conditions can affect the clotting process, leading to poor sample quality and impaired workflow. With serum gel tubes, we found a high proportion of sample probe aspiration errors on our Beckman AU5800 analyzers. We decided to implement the BD Barricor™ plasma tubes, and we validated an off-specification centrifugation scheme and verified that results obtained for 65 chemistry and immunochemistry tests were comparable to those obtained in serum gel tubes. Finally, we evaluated the impact of this new tube on sample error rate and laboratory turnaround time. Methods To validate centrifugation settings, 50 paired samples were collected in Barricor tubes and centrifuged at 1912 × g for 10 min or 5 min (off-specification). To compare serum gel tubes with Barricor plasma tubes, 119 paired samples were collected from volunteers and results were analyzed using weighed Deming regression. Finally, the proportion of aspiration errors and laboratory TAT for potassium were measured before and after implementing Barricor tubes. Results Barricor tubes showed clinically acceptable equivalence to serum gel tubes for the studied analytes, and the off-specification centrifugation scheme did not affect the results. Implementing Barricor tubes improved the laboratory workflow by decreasing the aspiration error rates (2.01% to 0.77%, P &lt; 0.001) and lowering hemolysis (P &lt; 0.001). The laboratory TAT for potassium were also significantly lowered (P &lt; 0.001). Conclusion Use of Barricor tubes instead of serum gel tubes leads to better sample quality, shorter more reproducible laboratory TAT, and decreases costs associated with error management.

Impact of Low-Frequency Transcranial Magnetic Stimulation on Brain Automatic Information Processing

2006 ◽  
Vol 20 (4) ◽  
pp. 267-275 ◽  
Author(s):  
O. Laloyaux ◽  
M. Ansseau ◽  
M. Hansenne
Keyword(s):  
Information Processing ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Low Frequency ◽  
Automatic Information Processing ◽  
Automatic Information ◽  
Before And After ◽  
Left And Right ◽  
The Impact

Repetitive transcranial magnetic stimulation (rTMS) is considered a powerful method for the study of the relationships between cortical activity and cognitive processes. Previous ERPs studies that focused on P300 response have shown that inhibitory/excitatory effects on prefrontal cortex (PFC), induced by low- and high-frequency rTMS, were able to modulate controlled but not automatic information processing. The present study assessed the impact of inhibition over left and right PFC induced by rTMS on mismatch negativity (MMN), which is known to represent automatic cerebral processes for detecting change. Auditory MMN was recorded in 20 subjects before and after application of left and right PFC 1-Hz rTMS for 15 min. MMN was also recorded before and after a sham-occipital 1-Hz rTMS as control condition. Results showed that 1-Hz rTMS induced no modification to either MMN latency or amplitude. In addition, N100 and P200 components to the frequent tones were not affected by rTMS. These results are consistent with previous findings showing that rTMS over both PFC is unable to disrupt automatic information processing. However, since two sites were stimulated in the present study, no definite conclusions about the inability of rTMS to disrupt automatic processing can be made.

Automated Dispensing Cabinet Functionality Expansion to Reduce Controlled Substance Inventory Discrepancies

2021 ◽  
pp. 001857872110613
Author(s):  
James A. M. Rhodes ◽  
Bryan C. McCarthy ◽  
Anthony C. Scott
Keyword(s):  
Medication Use ◽  
Error Rates ◽  
Before And After ◽  
Quasi Experimental ◽  
Unit Dose ◽  
Controlled Substance ◽  
The University ◽  
The Impact ◽  
Dispensing Error ◽  
Dispensing Errors

Background: Automated dispensing cabinets have the potential to create technology-induced errors that can arise during controlled substance medication dispensing. Despite enhancements made to the medication use process, the impact of ADC functionality on technology-induced controlled substance discrepancies have yet to be described. Objective: To evaluate the impact of ADC functionality expansion on technology-induced errors such as controlled substance discrepancies created during “blind inventory counts” and cassette dispensing errors. Methods: This quasi-experimental study was conducted over 18 months that evaluated the expanded use of dispensing cassettes within 8 ADCs at the University of Chicago Medicine. Unit-dose controlled substances with high usage were directed for inventory reassignment to cassettes. Controlled substance dispenses, blind inventory counts discrepancies and cassette dispensing errors were evaluated before and after cassette expansion. ADC discrepancy and Cassette Dispensing Error rates were calculated using 1-week segments across the study period. Results: Of the 64 040 dispenses during the study period, the proportion of cassette dispenses increased from 16% to 72% after cassette expansion. Controlled substance discrepancies decreased from 11 to 7 discrepancies for every 1000 dispenses ( P < .0001). After cassette expansion, cassette dispensing errors increased to roughly 28 errors for every 1000 dispenses ( P < .0001). Conclusion: Expansion of ADC functionality created opportunities for reduced technology-induced controlled substance discrepancy rates at the expense of increased cassette dispensing errors.

Retrograde shear rate in formerly preeclamptic and healthy women before and after exercise training: relationship with endothelial function

2014 ◽  
Vol 307 (3) ◽  
pp. H418-H425 ◽  
Author(s):  
Ralph R. Scholten ◽  
Marc E. A. Spaanderman ◽  
Daniel J. Green ◽  
Maria T. E. Hopman ◽  
Dick H. J. Thijssen
Keyword(s):  
Shear Rate ◽  
Exercise Training ◽  
Endothelial Function ◽  
Brachial Artery ◽  
Low Frequency ◽  
Power Spectral Analysis ◽  
Aerobic Exercise Training ◽  
Before And After ◽  
The Impact ◽  
Retrograde Shear

Blood flow patterns in conduit arteries characterized by high levels of retrograde shear stress can be detrimental for vascular health. In this study we examined whether retrograde shear rate and endothelial function are related in healthy and formerly preeclamptic (PE) women and whether this relationship is altered by exercise training. Formerly PE women (32 ± 4 yr, n = 20) and controls (32 ± 4 yr, n = 20), all 6–12 mo postpartum, performed 12-wk aerobic exercise training. We measured brachial artery shear rate (SR) and endothelial function by flow-mediated dilation (FMD, echo-Doppler). We additionally performed power spectral analysis of heart rate variability and calculated low-frequency/high-frequency (LF/HF) ratio. Antegrade SR was not different between groups, while retrograde SR was significantly higher and FMD% lower in PE women compared with controls (both P < 0.05). Retrograde shear correlated strongly with FMD% in PE women and controls ( P < 0.05). LF/HF ratio inversely correlated with brachial artery retrograde SR and FMD% (both P < 0.05) in PE women and controls. Exercise training reduced retrograde shear, improved FMD%, and reduced LF/HF ratios similarly in both groups (all P < 0.05). Training-induced changes in retrograde SR correlated with changes in FMD% and LF/HF ratio. A higher brachial artery retrograde SR relates to lower brachial artery endothelial function, in both controls and formerly PE women. Exercise training improves retrograde SR, while the magnitude of this change correlated strongly with improvements in FMD and reductions in LF/HF ratio. Therefore, the impact of PE and exercise training on endothelial health may, at least partly, be related to retrograde shear rate.

scholarly journals Agency costs, ownership structure, and corporate governance in pre-and post-IPO firms

2006 ◽  
Vol 3 (3) ◽  
pp. 88-95 ◽  
Author(s):  
Wallace N. Davidson III ◽  
Amani Khaled Bouresli ◽  
Manohar Singh
Keyword(s):  
Corporate Governance ◽  
Ownership Structure ◽  
Agency Costs ◽  
Board Composition ◽  
Control Mechanisms ◽  
Publicly Traded ◽  
Publicly Traded Companies ◽  
Before And After ◽  
Venture Capital Firms ◽  
The Impact

Following the approach in Ang, Cole, and Lin (2000), we estimate the impact of CEO ownership on agency costs in pre-IPO firms and again in the post-IPO period when they have become publicly traded companies. We find that CEO ownership is large in both the pre and post-IPO firms. Greater CEO ownership is associated with lower agency costs both before and after the IPO, and CEO ownership in these firms seems to dominate all other agency control mechanisms. Board composition and involvement by venture capital firms does not appear to mitigate agency costs.

scholarly journals The impact of individual differences on cross-language activation of meaning by phonology

2019 ◽  
Vol 23 (2) ◽  
pp. 323-343 ◽  
Author(s):  
Deanna C. Friesen ◽  
Veronica Whitford ◽  
Debra Titone ◽  
Debra Jared
Keyword(s):  
Individual Differences ◽  
Language Proficiency ◽  
Executive Control ◽  
Low Frequency ◽  
English Word ◽  
Word Knowledge ◽  
Language Activation ◽  
Cross Language ◽  
The Impact ◽  
Target Words

We investigated how individual differences in language proficiency and executive control impact cross-language meaning activation through phonology. Ninety-six university students read English sentences that contained French target words. Target words were high- and low-frequency French interlingual homophones (i.e., words that share pronunciation, but not meaning across langauges; mot means ‘word’ in French and sounds like ‘mow’ in English) and matched French control words (e.g., mois – ‘month’ in French). Readers could use the homophones’ shared phonology to activate their English meanings and, ultimately, make sense of the sentence (e.g., Tony was too lazy to mot/mois the grass on Sunday). Shorter reading times were observed on interlingual homophones than control words, suggesting that phonological representations in one language activate cross-language semantic representations. Importantly, the magnitude of the effect was modulated by word frequency, and several participant-level characteristics, including French proficiency, English word knowledge, and executive control ability.

scholarly journals Investigation on Properties of Cement Bitumen Emulsion Mortars (CBEM) in Consideration of Emulsifier Types

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Zhuoran Liu ◽  
Jinyang Huo ◽  
Zhenjun Wang
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Viscoelastic Property ◽  
Low Frequency ◽  
Dynamic Mechanical Analyzer ◽  
Bitumen Emulsion ◽  
Strength Tests ◽  
Before And After ◽  
The Impact ◽  
Better Than

In order to investigate the influences of emulsifier types on properties of cement bitumen emulsion mortars (CBEM), anionic and cationic emulsifiers were used to prepare CBEM in this work. Influences of anionic and cationic bitumen emulsions on workability, mechanical properties, and viscoelastic property of CBEM were studied. The workability of CBEM was evaluated by fluidity and extensibility tests. The mechanical properties were assessed by compressive strength and flexural strength tests. XRD was used to analyze the phase before and after bitumen emulsion was added. The viscoelastic property was studied by a dynamic mechanical analyzer (DMA). The results show that CBEM prepared by cationic bitumen emulsion (CBE) has better workability. The mechanical properties of CBEM are negatively affected by bitumen emulsion. The impact on the compressive strength of CBEM prepared by CBE is higher. Bitumen emulsion can significantly improve the viscoelastic property of CBEM. With the increase of bitumen emulsion dosage, the loss factor of CBEM increases. The viscoelastic property at low frequency is better than that at high frequency. In contrast to CBEM prepared by CBE, CBEM prepared with anionic bitumen emulsion (ABE) possesses better viscoelastic property.

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