82 research outputs found

    Teacher Evaluation of the Scripted Reading Street Program and the Level of Satisfaction among its Sub-scale Components

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    The No Child Left Behind Act of 2001 (NCLB) transformed the system of accountability for schools in the United States by implementing high stakes consequences for poor performance on standardized tests. Scripted curriculum has become a common practice as a means to prepare students to achieve the academic standards measured by standardized tests. The purpose of this mixed-methods research study was to explore teachers’ evaluation of the scripted Reading Street program and the implementation of the sub-scale components of this curriculum within their classrooms in one New Jersey urban district. This study was conducted to determine whether there were challenges or issues and a significant level of consistency between teacher satisfaction of the Reading Street program in the areas of planning, training and support; planning and scheduling; materials; curriculum and content; differentiated instruction; connections; and outcomes. Data collection was completed through the use of Google Docs. On March 18, 2013, teachers were emailed a link to the Likert-scale survey and were given two weeks to respond. Follow up open-ended surveys were emailed to the same population of second through fifth grade teachers on April 24, 2013. This study used a mixed-methods approach using survey research. A non-probability sampling method was used; specifically, convenience sampling. The researcher constructed, piloted, and validated the instrument. The first Reading Street survey consisted of 34 Likert-scale questions and one open-ended question. The follow-up Reading Street survey consisted of 12 open-ended questions and two demographic questions, which included years of experience and grade taught. Both surveys were administered to the sample population (n=106), which consisted of second through fifth grade public school teachers. The results of the study revealed that all scales except planning, training, and support were rated positively by respondents. Second through fifth grade teachers were found not to have received sufficient support prior to and during the course of implementing the Reading Street program throughout the school year

    RNA interference-mediated knockdown of CD49e (α5 integrin chain) in human thymic epithelial cells modulates the expression of multiple genes and decreases thymocyte adhesion

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    Background: The thymus is a central lymphoid organ, in which bone marrow-derived T cell precursors undergo a complex process of maturation. Developing thymocytes interact with thymic microenvironment in a defined spatial order. A component of thymic microenvironment, the thymic epithelial cells, is crucial for the maturation of T-lymphocytes through cell-cell contact, cell matrix interactions and secretory of cytokines/chemokines. There is evidence that extracellular matrix molecules play a fundamental role in guiding differentiating thymocytes in both cortical and medullary regions of the thymic lobules. The interaction between the integrin alpha 5 beta 1 (CD49e/CD29; VLA-5) and fibronectin is relevant for thymocyte adhesion and migration within the thymic tissue. Our previous results have shown that adhesion of thymocytes to cultured TEC line is enhanced in the presence of fibronectin, and can be blocked with anti-VLA-5 antibody. Results: Herein, we studied the role of CD49e expressed by the human thymic epithelium. For this purpose we knocked down the CD49e by means of RNA interference. This procedure resulted in the modulation of more than 100 genes, some of them coding for other proteins also involved in adhesion of thymocytes; others related to signaling pathways triggered after integrin activation, or even involved in the control of F-actin stress fiber formation. Functionally, we demonstrated that disruption of VLA-5 in human TEC by CD49e-siRNA-induced gene knockdown decreased the ability of TEC to promote thymocyte adhesion. Such a decrease comprised all CD4/CD8-defined thymocyte subsets. Conclusion: Conceptually, our findings unravel the complexity of gene regulation, as regards key genes involved in the heterocellular cell adhesion between developing thymocytes and the major component of the thymic microenvironment, an interaction that is a mandatory event for proper intrathymic T cell differentiation

    Hyperoxemia and excess oxygen use in early acute respiratory distress syndrome : Insights from the LUNG SAFE study

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    Publisher Copyright: © 2020 The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.Background: Concerns exist regarding the prevalence and impact of unnecessary oxygen use in patients with acute respiratory distress syndrome (ARDS). We examined this issue in patients with ARDS enrolled in the Large observational study to UNderstand the Global impact of Severe Acute respiratory FailurE (LUNG SAFE) study. Methods: In this secondary analysis of the LUNG SAFE study, we wished to determine the prevalence and the outcomes associated with hyperoxemia on day 1, sustained hyperoxemia, and excessive oxygen use in patients with early ARDS. Patients who fulfilled criteria of ARDS on day 1 and day 2 of acute hypoxemic respiratory failure were categorized based on the presence of hyperoxemia (PaO2 > 100 mmHg) on day 1, sustained (i.e., present on day 1 and day 2) hyperoxemia, or excessive oxygen use (FIO2 ≥ 0.60 during hyperoxemia). Results: Of 2005 patients that met the inclusion criteria, 131 (6.5%) were hypoxemic (PaO2 < 55 mmHg), 607 (30%) had hyperoxemia on day 1, and 250 (12%) had sustained hyperoxemia. Excess FIO2 use occurred in 400 (66%) out of 607 patients with hyperoxemia. Excess FIO2 use decreased from day 1 to day 2 of ARDS, with most hyperoxemic patients on day 2 receiving relatively low FIO2. Multivariate analyses found no independent relationship between day 1 hyperoxemia, sustained hyperoxemia, or excess FIO2 use and adverse clinical outcomes. Mortality was 42% in patients with excess FIO2 use, compared to 39% in a propensity-matched sample of normoxemic (PaO2 55-100 mmHg) patients (P = 0.47). Conclusions: Hyperoxemia and excess oxygen use are both prevalent in early ARDS but are most often non-sustained. No relationship was found between hyperoxemia or excessive oxygen use and patient outcome in this cohort. Trial registration: LUNG-SAFE is registered with ClinicalTrials.gov, NCT02010073publishersversionPeer reviewe

    Sex difference and intra-operative tidal volume: Insights from the LAS VEGAS study

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    BACKGROUND: One key element of lung-protective ventilation is the use of a low tidal volume (VT). A sex difference in use of low tidal volume ventilation (LTVV) has been described in critically ill ICU patients.OBJECTIVES: The aim of this study was to determine whether a sex difference in use of LTVV also exists in operating room patients, and if present what factors drive this difference.DESIGN, PATIENTS AND SETTING: This is a posthoc analysis of LAS VEGAS, a 1-week worldwide observational study in adults requiring intra-operative ventilation during general anaesthesia for surgery in 146 hospitals in 29 countries.MAIN OUTCOME MEASURES: Women and men were compared with respect to use of LTVV, defined as VT of 8 ml kg-1 or less predicted bodyweight (PBW). A VT was deemed 'default' if the set VT was a round number. A mediation analysis assessed which factors may explain the sex difference in use of LTVV during intra-operative ventilation.RESULTS: This analysis includes 9864 patients, of whom 5425 (55%) were women. A default VT was often set, both in women and men; mode VT was 500 ml. Median [IQR] VT was higher in women than in men (8.6 [7.7 to 9.6] vs. 7.6 [6.8 to 8.4] ml kg-1 PBW, P &lt; 0.001). Compared with men, women were twice as likely not to receive LTVV [68.8 vs. 36.0%; relative risk ratio 2.1 (95% CI 1.9 to 2.1), P &lt; 0.001]. In the mediation analysis, patients' height and actual body weight (ABW) explained 81 and 18% of the sex difference in use of LTVV, respectively; it was not explained by the use of a default VT.CONCLUSION: In this worldwide cohort of patients receiving intra-operative ventilation during general anaesthesia for surgery, women received a higher VT than men during intra-operative ventilation. The risk for a female not to receive LTVV during surgery was double that of males. Height and ABW were the two mediators of the sex difference in use of LTVV.TRIAL REGISTRATION: The study was registered at Clinicaltrials.gov, NCT01601223

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Teacher Evaluation of the Scripted Reading Street Program and the Level of Satisfaction among its Sub-scale Components

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    The No Child Left Behind Act of 2001 (NCLB) transformed the system of accountability for schools in the United States by implementing high stakes consequences for poor performance on standardized tests. Scripted curriculum has become a common practice as a means to prepare students to achieve the academic standards measured by standardized tests. The purpose of this mixed-methods research study was to explore teachers’ evaluation of the scripted Reading Street program and the implementation of the sub-scale components of this curriculum within their classrooms in one New Jersey urban district. This study was conducted to determine whether there were challenges or issues and a significant level of consistency between teacher satisfaction of the Reading Street program in the areas of planning, training and support; planning and scheduling; materials; curriculum and content; differentiated instruction; connections; and outcomes. Data collection was completed through the use of Google Docs. On March 18, 2013, teachers were emailed a link to the Likert-scale survey and were given two weeks to respond. Follow up open-ended surveys were emailed to the same population of second through fifth grade teachers on April 24, 2013. This study used a mixed-methods approach using survey research. A non-probability sampling method was used; specifically, convenience sampling. The researcher constructed, piloted, and validated the instrument. The first Reading Street survey consisted of 34 Likert-scale questions and one open-ended question. The follow-up Reading Street survey consisted of 12 open-ended questions and two demographic questions, which included years of experience and grade taught. Both surveys were administered to the sample population (n=106), which consisted of second through fifth grade public school teachers. The results of the study revealed that all scales except planning, training, and support were rated positively by respondents. Second through fifth grade teachers were found not to have received sufficient support prior to and during the course of implementing the Reading Street program throughout the school year

    Working Remotely and Corporate Culture Wars in the Post-Pandemic Era

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    Organizational culture is a sacred element of any organization. It is the lifeblood and the guiding force that makes each organization unique in its ability to navigate day-to-day and longer-term perspectives of corporate operations. Strong cultures help identify direction and philosophy and provide confidence in how to proceed to pursue innovative ideas and solve problems. Since 2020, the core value and the strength of many organizational cultures have been tested as a result of the increased reliance on working remotely and the adoption of a hybrid model of business operations not previously utilized to a great degree. While many survived the strain of modified operations under COVID-19 restrictions, many organizations are now faced with the key question of how they go forward after the COVID pandemic era has seemingly passed. Such a realization will have a significant impact on all key elements of the organization, especially company culture

    Aortic remodelling after thoracic endovascular aortic repair in acute and chronic type B aortic dissections.

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    OBJECTIVES: Type B aortic dissections are routinely treated with thoracic endovascular aortic repair (TEVAR). The timing for TEVAR remains controversial and might have an impact on the remodelling capacity of the aorta. This study analyses and compares aortic remodelling in acute (ABD) and chronic (CBD) type B aortic dissections after TEVAR. METHODS: This retrospective study analysed the preoperative, postoperative and at least 1-year follow-up computed tomography of 53 TEVAR patients (36 ABD, 17 CBD) at a single institution between May 2005 and May 2016. The volumes of aortic lumen (AL), true lumen, false lumen (FL) and perfused FL were measured at the stent graft level (A), from the stent graft to the coeliac trunk (B) and from the coeliac trunk to the bifurcation (C). The absolute volumes, normalized volume changes and FL thrombosis rate of ABD and CBD patients were compared. RESULTS: Absolute AL and FL of segment A were significantly larger in CBD patients compared to ABD patients preoperatively (AL: 354 ± 68 vs 255 ± 51 ml, P = 0.023, FL: 253 ± 56 vs 183 ± 35 ml, P = 0.028) until last follow-up (AL: 462 ± 52 vs 246 ± 52 ml, P = 0.003, FL: 268 ± 202 vs 91 ± 31 ml, P = 0.004). The true lumen in segment A increased more in ABD than in CBD patients preoperatively to postoperatively (112% vs 36% P \u3c 0.001) and within the first year postoperatively (171% vs 80% P \u3c 0.001). FL in segment A decreased more in ABD compared to CBD patients within the first year (-42% vs -13% P \u3c 0.001) and thereafter (-50% vs +6% P = 0.002). In segments B and C, the FL thrombosis rate was higher in ABD than in CBD patients at all time points and significantly higher in segment A after the first year (91% vs 98% P = 0.035). CONCLUSIONS: Aortic remodelling after TEVAR is significantly different in acute and chronic dissection patients. TEVAR promotes aortic remodelling in both acute and chronic dissections in terms of true lumen increase at stent graft level. Nevertheless, significant AL reduction by FL shrinkage is primarily found in ABD
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