21 research outputs found

    An Analysis of the Effects of Children Achieving on Student Achievement in Philadelphia Elementary Schools

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    Philadelphia’s Children Achieving was a sweeping systemic reform initiative. Systemic reform eschews a school-byschool approach to reform and relies on coherent policy, improved coordination of resources and services, content and performance standards, decentralization of decision-making, and accountability mechanisms to transform entire school systems. Led by a dynamic superintendent and central office personnel, Children Achieving was the first attempt by an urban district to test systemic reform in practice. In 1996, the Consortium for Policy Research in Education (CPRE) at the University of Pennsylvania and its partner, Research for Action (RFA), were charged by the Children Achieving Challenge with the evaluation of Children Achieving. Between the 1995- 1996 and 2000-2001 school years, CPRE and RFA researchers interviewed hundreds of teachers, principals, parents, students, District officials, and civic leaders; sat in on meetings where the plan was designed, debated, and revised; observed its implementation in classrooms and schools; conducted two systemwide surveys of teachers; and carried out independent analyses of the District’s test results and other indicators of system performance. An outline of the research methods used by CPRE and RFA is included in this report

    Diverse perspectives on interdisciplinarity from the Members of the College of the Royal Society of Canada

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    Various multiple-disciplinary terms and concepts (although most commonly “interdisciplinarity”, which is used herein) are used to frame education, scholarship, research, and interactions within and outside academia. In principle, the premise of interdisciplinarity may appear to have many strengths; yet, the extent to which interdisciplinarity is embraced by the current generation of academics, the benefits and risks for doing so, and the barriers and facilitators to achieving interdisciplinarity represent inherent challenges. Much has been written on the topic of interdisciplinarity, but to our knowledge there have been few attempts to consider and present diverse perspectives from scholars, artists, and scientists in a cohesive manner. As a team of 57 members from the Canadian College of New Scholars, Artists, and Scientists of the Royal Society of Canada (the College) who self-identify as being engaged or interested in interdisciplinarity, we provide diverse intellectual, cultural, and social perspectives. The goal of this paper is to share our collective wisdom on this topic with the broader community and to stimulate discourse and debate on the merits and challenges associated with interdisciplinarity. Perhaps the clearest message emerging from this exercise is that working across established boundaries of scholarly communities is rewarding, necessary, and is more likely to result in impact. However, there are barriers that limit the ease with which this can occur (e.g., lack of institutional structures and funding to facilitate cross-disciplinary exploration). Occasionally, there can be significant risk associated with doing interdisciplinary work (e.g., lack of adequate measurement or recognition of work by disciplinary peers). Solving many of the world’s complex and pressing problems (e.g., climate change, sustainable agriculture, the burden of chronic disease, and aging populations) demand thinking and working across long-standing, but in some ways restrictive, academic boundaries. Academic institutions and key support structures, especially funding bodies, will play an important role in helping to realize what is readily apparent to all who contributed to this paper—that interdisciplinarity is essential for solving complex problems; it is the new norm. Failure to empower and encourage those doing this research will serve as a great impediment to training, knowledge, and addressing societal issues

    Finishing the euchromatic sequence of the human genome

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    The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

    Effectiveness of a national quality improvement programme to improve survival after emergency abdominal surgery (EPOCH): a stepped-wedge cluster-randomised trial

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    Background: Emergency abdominal surgery is associated with poor patient outcomes. We studied the effectiveness of a national quality improvement (QI) programme to implement a care pathway to improve survival for these patients. Methods: We did a stepped-wedge cluster-randomised trial of patients aged 40 years or older undergoing emergency open major abdominal surgery. Eligible UK National Health Service (NHS) hospitals (those that had an emergency general surgical service, a substantial volume of emergency abdominal surgery cases, and contributed data to the National Emergency Laparotomy Audit) were organised into 15 geographical clusters and commenced the QI programme in a random order, based on a computer-generated random sequence, over an 85-week period with one geographical cluster commencing the intervention every 5 weeks from the second to the 16th time period. Patients were masked to the study group, but it was not possible to mask hospital staff or investigators. The primary outcome measure was mortality within 90 days of surgery. Analyses were done on an intention-to-treat basis. This study is registered with the ISRCTN registry, number ISRCTN80682973. Findings: Treatment took place between March 3, 2014, and Oct 19, 2015. 22 754 patients were assessed for elegibility. Of 15 873 eligible patients from 93 NHS hospitals, primary outcome data were analysed for 8482 patients in the usual care group and 7374 in the QI group. Eight patients in the usual care group and nine patients in the QI group were not included in the analysis because of missing primary outcome data. The primary outcome of 90-day mortality occurred in 1210 (16%) patients in the QI group compared with 1393 (16%) patients in the usual care group (HR 1·11, 0·96–1·28). Interpretation: No survival benefit was observed from this QI programme to implement a care pathway for patients undergoing emergency abdominal surgery. Future QI programmes should ensure that teams have both the time and resources needed to improve patient care. Funding: National Institute for Health Research Health Services and Delivery Research Programme

    Effectiveness of a national quality improvement programme to improve survival after emergency abdominal surgery (EPOCH): a stepped-wedge cluster-randomised trial

    Get PDF
    BACKGROUND: Emergency abdominal surgery is associated with poor patient outcomes. We studied the effectiveness of a national quality improvement (QI) programme to implement a care pathway to improve survival for these patients. METHODS: We did a stepped-wedge cluster-randomised trial of patients aged 40 years or older undergoing emergency open major abdominal surgery. Eligible UK National Health Service (NHS) hospitals (those that had an emergency general surgical service, a substantial volume of emergency abdominal surgery cases, and contributed data to the National Emergency Laparotomy Audit) were organised into 15 geographical clusters and commenced the QI programme in a random order, based on a computer-generated random sequence, over an 85-week period with one geographical cluster commencing the intervention every 5 weeks from the second to the 16th time period. Patients were masked to the study group, but it was not possible to mask hospital staff or investigators. The primary outcome measure was mortality within 90 days of surgery. Analyses were done on an intention-to-treat basis. This study is registered with the ISRCTN registry, number ISRCTN80682973. FINDINGS: Treatment took place between March 3, 2014, and Oct 19, 2015. 22 754 patients were assessed for elegibility. Of 15 873 eligible patients from 93 NHS hospitals, primary outcome data were analysed for 8482 patients in the usual care group and 7374 in the QI group. Eight patients in the usual care group and nine patients in the QI group were not included in the analysis because of missing primary outcome data. The primary outcome of 90-day mortality occurred in 1210 (16%) patients in the QI group compared with 1393 (16%) patients in the usual care group (HR 1·11, 0·96-1·28). INTERPRETATION: No survival benefit was observed from this QI programme to implement a care pathway for patients undergoing emergency abdominal surgery. Future QI programmes should ensure that teams have both the time and resources needed to improve patient care. FUNDING: National Institute for Health Research Health Services and Delivery Research Programme

    31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016) : part two

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    Background The immunological escape of tumors represents one of the main ob- stacles to the treatment of malignancies. The blockade of PD-1 or CTLA-4 receptors represented a milestone in the history of immunotherapy. However, immune checkpoint inhibitors seem to be effective in specific cohorts of patients. It has been proposed that their efficacy relies on the presence of an immunological response. Thus, we hypothesized that disruption of the PD-L1/PD-1 axis would synergize with our oncolytic vaccine platform PeptiCRAd. Methods We used murine B16OVA in vivo tumor models and flow cytometry analysis to investigate the immunological background. Results First, we found that high-burden B16OVA tumors were refractory to combination immunotherapy. However, with a more aggressive schedule, tumors with a lower burden were more susceptible to the combination of PeptiCRAd and PD-L1 blockade. The therapy signifi- cantly increased the median survival of mice (Fig. 7). Interestingly, the reduced growth of contralaterally injected B16F10 cells sug- gested the presence of a long lasting immunological memory also against non-targeted antigens. Concerning the functional state of tumor infiltrating lymphocytes (TILs), we found that all the immune therapies would enhance the percentage of activated (PD-1pos TIM- 3neg) T lymphocytes and reduce the amount of exhausted (PD-1pos TIM-3pos) cells compared to placebo. As expected, we found that PeptiCRAd monotherapy could increase the number of antigen spe- cific CD8+ T cells compared to other treatments. However, only the combination with PD-L1 blockade could significantly increase the ra- tio between activated and exhausted pentamer positive cells (p= 0.0058), suggesting that by disrupting the PD-1/PD-L1 axis we could decrease the amount of dysfunctional antigen specific T cells. We ob- served that the anatomical location deeply influenced the state of CD4+ and CD8+ T lymphocytes. In fact, TIM-3 expression was in- creased by 2 fold on TILs compared to splenic and lymphoid T cells. In the CD8+ compartment, the expression of PD-1 on the surface seemed to be restricted to the tumor micro-environment, while CD4 + T cells had a high expression of PD-1 also in lymphoid organs. Interestingly, we found that the levels of PD-1 were significantly higher on CD8+ T cells than on CD4+ T cells into the tumor micro- environment (p < 0.0001). Conclusions In conclusion, we demonstrated that the efficacy of immune check- point inhibitors might be strongly enhanced by their combination with cancer vaccines. PeptiCRAd was able to increase the number of antigen-specific T cells and PD-L1 blockade prevented their exhaus- tion, resulting in long-lasting immunological memory and increased median survival

    The multiple relationships between health and *environment risk factors and school performance: A longitudinal investigation of urban elementary students

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    Our nation is arguably amidst an educational crisis marked by the declining school performance of America\u27s students. Despite national mandates calling to improve students\u27 educational attainment, there is a noticeable lack of empirical studies in the literature documenting what places children at risk for difficulty in school. Important health and environmental risk factors have been identified in the literature, and include low birth weight, lead poisoning, inadequate prenatal care, out-of-home placement, history of homelessness, birth to an adolescent mother, birth to a single mother, mothers\u27 low education, parity, and school mobility. Measures of school performance that have received attention in the literature include group-administered standardized achievement tests, teacher-assigned grades, daily school attendance, receipt of special education services, and promotion standards information. The purpose of the proposed study was to explore the longitudinal relationship among the aforementioned risk factors and school performance, as well as among nonstandardized measures of school performance and standardized reading and mathematics achievement. Participants were drawn from a population-based cohort of children born in a large urban school district (N = 10,008). Multiple logistic regression analysis and repeated measures ANOVA were utilized to explore relationships among variables. Results revealed significant relationships between the risk factors and each of the school performance measures, and between each of the nonstandardized school performance measures and standardized reading and mathematics achievement. Risk factors were shown to have a differential relationship to each of the school performance outcomes as a function of time, as were low performance on nonstandardized school performance measures to standardized achievement. Implications of findings for research, policy, and practice were discussed

    The Multiple Relationships Between Health and Environment Risk Factors and School Performance: A Longitudinal Investigation of Urban Elementary Students

    No full text
    Our nation is arguably amidst an educational crisis marked by the declining school performance of America\u27s students. Despite national mandates calling to improve students\u27 educational attainment, there is a noticeable lack of empirical studies in the literature documenting what places children at risk for difficulty in school. Important health and environmental risk factors have been identified in the literature, and include low birth weight, lead poisoning, inadequate prenatal care, out-of-home placement, history of homelessness, birth to an adolescent mother, birth to a single mother, mothers\u27 low education, parity, and school mobility. Measures of school performance that have received attention in the literature include group-administered standardized achievement tests, teacher-assigned grades, daily school attendance, receipt of special education services, and promotion standards information. The purpose of the proposed study was to explore the longitudinal relationship among the aforementioned risk factors and school performance, as well as among nonstandardized measures of school performance and standardized reading and mathematics achievement. Participants were drawn from a population-based cohort of children born in a large urban school district (N = 10,008). Multiple logistic regression analysis and repeated measures ANOVA were utilized to explore relationships among variables. Results revealed significant relationships between the risk factors and each of the school performance measures, and between each of the nonstandardized school performance measures and standardized reading and mathematics achievement. Risk factors were shown to have a differential relationship to each of the school performance outcomes as a function of time, as were low performance on nonstandardized school performance measures to standardized achievement. Implications of findings for research, policy, and practice were discussed
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