219 research outputs found

    A matrix of music supervisors' stories in the midst of school reform

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    Race to the Top (RttP) was used to focus school reform on the improvement of teaching through teacher evaluation based on student growth data. Papay (2012) was among the researchers who argued that “evaluators must be well-trained, knowledgeable about effective teaching practices, as defined in the standards, and able to analyze observed practices to determine how well teachers are meeting those standards” (p.135). Hill and Grossman (2013) claimed that, in the current era of reform, content-area experts were the best means of supporting teachers and helping them improve their practice. In light of this assertion, music supervisors have vital expertise, yet they are seldom represented in the music education research literature. Craig’s framework of knowledge communities arising on the knowledge landscape was essential to this inquiry. I made the assumption that, because music supervisors interact consistently with teachers as well as other administrators, their knowledge landscapes are complex, and I wondered which knowledge communities shaped music supervisors’ professional practice, and also how their story constellations were shaped in the midst of education reform brought about by Race to the Top. Through narrative inquiry, I was able to depict the lives of myself and two other music supervisors. We recorded six conversations, and I created transcripts from those recordings. The participants and I engaged in co-construction of an interim text until each of us was satisfied that the transcriptions sufficiently illustrated the complexity of his or her temporality, sociality, and place. The final research text was represented in script form as ten scenes related to the themes we uncovered, and I subsequently interpreted those scenes. In our story constellations, reform stories were about trying to link evaluation of student growth to evaluation of teachers with no model to follow, while our stories of reform were about moving to a system where multiple sources of evidence were brought to bear in teacher evaluation. Our reform stories expressed fears that lack of validity in student growth assessments would eventually dishearten teachers, but in stories of reform, we expressed that teachers should be deeply engaged in considering how their students’ growth was best demonstrated

    The Next Generation Virgo Cluster Survey (NGVS). XVIII. Measurement and Calibration of Surface Brightness Fluctuation Distances for Bright Galaxies in Virgo (and Beyond)

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    We describe a program to measure surface brightness fluctuation (SBF) distances to galaxies observed in the Next Generation Virgo Cluster Survey (NGVS), a photometric imaging survey covering 104 deg2104~deg^2 of the Virgo cluster in the u∗,g,i,z{u}^*,g,i,z bandpasses with the Canada-France Hawaii Telescope. We describe the selection of the sample galaxies, the procedures for measuring the apparent ii-band SBF magnitude iˉ\bar{i}, and the calibration of the absolute Mˉi\bar{M}_i as a function of observed stellar population properties. The multi-band NGVS data set provides multiple options for calibrating the SBF distances, and we explore various calibrations involving individual color indices as well as combinations of two different colors. Within the color range of the present sample, the two-color calibrations do not significantly improve the scatter with respect to wide-baseline, single-color calibrations involving u∗u^{*}. We adopt the u∗−z{u}^*{-}z calibration as reference for the present galaxy sample, with an observed scatter of 0.11 mag. For a few cases that lack good u∗{u}^* photometry, we use an alternative relation based on a combination of g−ig{-}i and g−zg{-}z colors, with only a slightly larger observed scatter of 0.12 mag. The agreement of our measurements with the best existing distance estimates provides confidence that our measurements are accurate. We present a preliminary catalog of distances for 89 galaxies brighter than BT≈13.0B_T\approx13.0 mag within the survey footprint, including members of the background M and W Clouds at roughly twice the distance of the main body of the Virgo cluster. The extension of the present work to fainter and bluer galaxies is in progress.Comment: ApJ accepte

    Breast cancer histology and receptor status characterization in Asian Indian and Pakistani women in the U.S. - a SEER analysis

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    <p>Abstract</p> <p>Background</p> <p>Recent reports suggest increase in estrogen receptor (ER), progesterone receptor (PR) negative breast cancer yet little is known about histology or receptor status of breast cancer in Indian/Pakistani women.in the U.S.</p> <p>Methods</p> <p>We examined the United States National Cancer Institute's Surveillance Epidemiology and End Results (SEER) Cancer program to assess: a) frequency of breast cancer by age, b) histologic subtypes, c) receptor status of breast cancer and, d) survival in Indians/Pakistanis compared to Caucasians. There were 360,933 breast cancer cases diagnosed 1988-2006. Chi-Square analyses and Cox proportional hazards models, to estimate relative risks for breast cancer mortality after adjusting for confounders, were performed using Statistical Analysis Software 9.2.</p> <p>Results</p> <p>Among Asian Indian/Pakistani breast cancer patients, 16.2% were < 40 yrs. old compared to 6.23% in Caucasians (p < 0.0001). Asian Indian women had more invasive ductal carcinoma (69.1 vs. 65.7%, p < 0.0001), inflammatory cancer (1.4% vs. 0.8, p < 0.0001) and less invasive lobular carcinoma (4.2% vs. 8.1%, p < 0.0001) than Caucasians. Asian Indian/Pakistani women had more ER/PR negative breast cancer (30.6% vs. 21.8%, p = 0.0095) than Caucasians. Adjusting for stage at diagnosis, age, tumor grade, nodal status, and histology, Asian Indian/Pakistani women's survival was similar to Caucasians, while African Americans' was worse.</p> <p>Conclusions</p> <p>Asian Indian/Pakistani women have higher frequency of breast cancer (particularly in age < 40), ER/PR negative invasive ductal and inflammatory cancer than Caucasians.</p

    Adaptação cultural e parùmetros psicométricos da versão brasileira da "Need for Recovery Scale"

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    OBJETIVO: Traducir la escala Need for Recovery Scale para el idioma portuguĂ©s buscando la adaptaciĂłn cultural y presentando la estabilidad, consistencia interna y validez convergente de la versiĂłn brasilera en trabajadores de la industria. MÉTODOS: La traducciĂłn de la escala siguiĂł normas para adaptaciones culturales de cuestionarios, que envolviĂł las etapas de traducciĂłn, sĂ­ntesis, retro-traducciĂłn, revisiĂłn por especialistas y pre-test. La versiĂłn final de la escala en portuguĂ©s, denominada &#147;Escala de Necessidade de Descanso&#148; fue evaluada por las pruebas de estabilidad (n=52) y de consistencia interna (n=192) y con respecto a la validez convergente en evaluaciones simultĂĄneas con otros instrumentos: Escala de Borg (n=59), Cuestionario de Fatiga de Chalder (n=57) y escalas del Short Form-36 (n=56). RESULTADOS: La estabilidad y consistencia interna de la escala alcanzaron el criterio de medida confiable (ICC =0.80 y ? de Cronbach =0.87, respectivamente). La validez convergente entre la versiĂłn brasilera de la escala y los otros instrumentos tambiĂ©n presentaron buenos resultados: Escala de Borg (r=0.64); Cuestionario de Fatiga de Chalder (r=0.67); escalas del Short Form-36: vitalidad (r=-0.84), capacidad funcional (r=-0.54) y aspectos fĂ­sicos (r=-0.47). CONCLUSIONES: La versiĂłn brasilera de la escala Need for Recovery Scale presentĂł buena confiabilidad para evaluaciĂłn de sĂ­ntomas de fatiga relacionada al trabajo. AsĂ­ mismo, presentĂł correlaciones satisfactorias y significativas con otros instrumentos aceptados por la literatura, lo que valida la escala para utilizaciĂłn en trabajadores de perfil semejante al estudiado.OBJETIVO: Traduzir a escala Need for Recovery Scale para a lĂ­ngua portuguesa visando a adaptação cultural e apresentando a estabilidade, consistĂȘncia interna e validade convergente da versĂŁo brasileira em trabalhadores da indĂșstria. MÉTODOS: A tradução da escala seguiu normas para adaptaçÔes culturais de questionĂĄrios, que envolveu as etapas de tradução, sĂ­ntese, retro-tradução, revisĂŁo por especialistas e prĂ©-teste. A versĂŁo final da escala em portuguĂȘs, denominada Escala de Necessidade de Descanso foi avaliada pelos testes de estabilidade (n=52) e de consistĂȘncia interna (n=192) e quanto Ă  validade convergente em avaliaçÔes simultĂąneas com outros instrumentos: Escala de Borg (n=59), QuestionĂĄrio de Fadiga de Chalder (n=57) e escalas do Short Form-36 (n=56). RESULTADOS: A estabilidade e consistĂȘncia interna da escala atingiram o critĂ©rio de medida confiĂĄvel (ICC=0,80 e &#945; de Cronbach=0,87, respectivamente). A validade convergente entre a versĂŁo brasileira da escala e os outros instrumentos tambĂ©m apresentaram bons resultados: Escala de Borg (r=0,64); QuestionĂĄrio de Fadiga de Chalder (r=0,67); escalas do Short Form-36: vitalidade (r=-0,84), capacidade funcional (r=-0,54) e aspectos fĂ­sicos (r=-0,47). CONCLUSÕES: A versĂŁo brasileira da escala Need for Recovery Scale apresentou boa confiabilidade para avaliação de sintomas de fadiga relacionada ao trabalho. AlĂ©m disto, apresentou correlaçÔes satisfatĂłrias e significativas com outros instrumentos aceitos pela literatura, o que valida a escala para utilização em trabalhadores de perfil semelhante ao estudado.OBJECTIVE: To translate the Need for Recovery Scale (NFR) into Brazilian Portuguese and culturally adapt it and assess the stability, internal consistency and convergent validity of the Brazilian scale among industrial workers. METHODS: The translation process followed the guidelines for cultural adaptation of questionnaires including the steps of translation, synthesis, back translation, expert committee review, and pre-testing. The Brazilian Portuguese NFR, final version (Br-NFR) was assessed for stability (n=52) and internal consistency (n=192) and for convergent validity through simultaneous assessment with other instruments: the Borg Scale (n=59); the Chalder Fatigue Questionnaire (n=57) and 3 subscales of the SF-36 (n=56). RESULTS: Stability and internal consistency met the criterion for a reliable measure (ICC=0.80 and Cronbach's alpha =0.87, respectively). The convergent validity between Br-NFR and other instruments also showed good results: Borg Scale (r= 0.64); Chalder Questionnaire (r= 0.67); SF-36 subscales: vitality (r= -0.84), physical functioning (r= -0.54), and role-physical (r= -0.47). CONCLUSIONS: The Br-NFR proved to be a reliable instrument to evaluate work-related fatigue symptoms in industrial workers. Furthermore, it showed significant and good correlations with well-established instruments such as the Borg Scale, the Chalder Questionnaire and SF-36 vitality subscale, supporting the validity of the Br-NFR

    Chromosome 5p Region SNPs Are Associated with Risk of NSCLC among Women

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    In a population-based case-control study, we explored the associations between 42 polymorphisms in seven genes in this region and non-small cell lung cancer (NSCLC) risk among Caucasian (364 cases; 380 controls) and African American (95 cases; 103 controls) women. Two TERT region SNPs, rs2075786 and rs2853677, conferred an increased risk of developing NSCLC, especially among African American women, and TERT-rs2735940 was associated with a decreased risk of lung cancer among African Americans. Five of the 20 GHR polymorphisms and SEPP1-rs6413428 were associated with a marginally increased risk of NSCLC among Caucasians. Random forest analysis reinforced the importance of GHR among Caucasians and identified AMACR, TERT, and GHR among African Americans, which were also significant using gene-based risk scores. Smoking-SNP interactions were explored, and haplotypes in TERT and GHR associated with NSCLC risk were identified. The roles of TERT, GHR, AMACR and SEPP1 genes in lung carcinogenesis warrant further exploration

    Clinical Characteristics of Breast Cancers in African‐American Women with Benign Breast Disease: A Comparison to the Surveillance, Epidemiology, and End Results Program

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    Benign breast disease ( BBD ) is a very common condition, diagnosed in approximately half of all A merican women throughout their lifecourse. White women with BBD are known to be at substantially increased risk of subsequent breast cancer; however, nothing is known about breast cancer characteristics that develop after a BBD diagnosis in A frican‐ A merican women. Here, we compared 109 breast cancers that developed in a population of A frican‐ A merican women with a history of BBD to 10,601 breast cancers that developed in a general population of A frican‐ A merican women whose cancers were recorded by the M etropolitan D etroit C ancer S urveillance S ystem ( MDCSS population). Demographic and clinical characteristics of the BBD population were compared to the MDCSS population, using chi‐squared tests, F isher's exact tests, t ‐tests, and W ilcoxon tests where appropriate. K aplan– M eier curves and Cox regression models were used to examine survival. Women in the BBD population were diagnosed with lower grade (p = 0.02), earlier stage cancers (p = 0.003) that were more likely to be hormone receptor‐positive (p = 0.03) compared to the general metropolitan Detroit A frican‐ A merican population. In situ cancers were more common among women in the BBD cohort (36.7%) compared to the MDCSS population (22.1%, p < 0.001). Overall, women in the BBD population were less likely to die from breast cancer after 10 years of follow‐up (p = 0.05), but this association was not seen when analyses were limited to invasive breast cancers. These results suggest that breast cancers occurring after a BBD diagnosis may have more favorable clinical parameters, but the majority of cancers are still invasive, with survival rates similar to the general A frican‐ A merican population.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/109284/1/tbj12331.pd

    Quality of Life in Chronic Pancreatitis is Determined by Constant Pain, Disability/Unemployment, Current Smoking, and Associated Co-Morbidities

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    OBJECTIVES: Chronic pancreatitis (CP) has a profound independent effect on quality of life (QOL). Our aim was to identify factors that impact the QOL in CP patients. METHODS: We used data on 1,024 CP patients enrolled in the three NAPS2 studies. Information on demographics, risk factors, co-morbidities, disease phenotype, and treatments was obtained from responses to structured questionnaires. Physical and mental component summary (PCS and MCS, respectively) scores generated using responses to the Short Form-12 (SF-12) survey were used to assess QOL at enrollment. Multivariable linear regression models determined independent predictors of QOL. RESULTS: Mean PCS and MCS scores were 36.7+/-11.7 and 42.4+/-12.2, respectively. Significant (P \u3c 0.05) negative impact on PCS scores in multivariable analyses was noted owing to constant mild-moderate pain with episodes of severe pain or constant severe pain (10 points), constant mild-moderate pain (5.2), pain-related disability/unemployment (5.1), current smoking (2.9 points), and medical co-morbidities. Significant (P \u3c 0.05) negative impact on MCS scores was related to constant pain irrespective of severity (6.8-6.9 points), current smoking (3.9 points), and pain-related disability/unemployment (2.4 points). In women, disability/unemployment resulted in an additional 3.7 point reduction in MCS score. Final multivariable models explained 27% and 18% of the variance in PCS and MCS scores, respectively. Etiology, disease duration, pancreatic morphology, diabetes, exocrine insufficiency, and prior endotherapy/pancreatic surgery had no significant independent effect on QOL. CONCLUSIONS: Constant pain, pain-related disability/unemployment, current smoking, and concurrent co-morbidities significantly affect the QOL in CP. Further research is needed to identify factors impacting QOL not explained by our analyses

    Mechanisms of CFTR Functional Variants That Impair Regulated Bicarbonate Permeation and Increase Risk for Pancreatitis but Not for Cystic Fibrosis

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    CFTR is a dynamically regulated anion channel. Intracellular WNK1-SPAK activation causes CFTR to change permeability and conductance characteristics from a chloride-preferring to bicarbonate-preferring channel through unknown mechanisms. Two severe CFTR mutations (CFTRsev) cause complete loss of CFTR function and result in cystic fibrosis (CF), a severe genetic disorder affecting sweat glands, nasal sinuses, lungs, pancreas, liver, intestines, and male reproductive system. We hypothesize that those CFTR mutations that disrupt the WNK1-SPAK activation mechanisms cause a selective, bicarbonate defect in channel function (CFTRBD) affecting organs that utilize CFTR for bicarbonate secretion (e.g. the pancreas, nasal sinus, vas deferens) but do not cause typical CF. To understand the structural and functional requirements of the CFTR bicarbonate-preferring channel, we (a) screened 984 well-phenotyped pancreatitis cases for candidate CFTRBD mutations from among 81 previously described CFTR variants; (b) conducted electrophysiology studies on clones of variants found in pancreatitis but not CF; (c) computationally constructed a new, complete structural model of CFTR for molecular dynamics simulation of wild-type and mutant variants; and (d) tested the newly defined CFTRBD variants for disease in non-pancreas organs utilizing CFTR for bicarbonate secretion. Nine variants (CFTR R74Q, R75Q, R117H, R170H, L967S, L997F, D1152H, S1235R, and D1270N) not associated with typical CF were associated with pancreatitis (OR 1.5, p = 0.002). Clones expressed in HEK 293T cells had normal chloride but not bicarbonate permeability and conductance with WNK1-SPAK activation. Molecular dynamics simulations suggest physical restriction of the CFTR channel and altered dynamic channel regulation. Comparing pancreatitis patients and controls, CFTRBD increased risk for rhinosinusitis (OR 2.3, p<0.005) and male infertility (OR 395, p<<0.0001). WNK1-SPAK pathway-activated increases in CFTR bicarbonate permeability are altered by CFTRBD variants through multiple mechanisms. CFTRBD variants are associated with clinically significant disorders of the pancreas, sinuses, and male reproductive system.Fil: LaRusch, Jessica. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Jung, Jinsei. Yonsei University College of Medicine; Corea del SurFil: General, Ignacio. University of Pittsburgh; Estados Unidos. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Lewis, Michele D.. Mayo Clinic. Division of Gastroenterology and Hepatology; Estados UnidosFil: Park, Hyun Woo. Yonsei University College of Medicine; Corea del SurFil: Brand, Randall E.. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Gelrud, Andres. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Anderson, Michelle A.. University of Michigan; Estados UnidosFil: Banks, Peter A.. Brigham and Women’s Hospital. Division of Gastroenterology; Estados UnidosFil: Conwell, Darwin. Brigham and Women’s Hospital. Division of Gastroenterology; Estados UnidosFil: Lawrence, Christopher. Medical University of South Carolina; Estados UnidosFil: Romagnuolo, Joseph. Medical University of South Carolina; Estados UnidosFil: Baillie, John. University of Duke; Estados UnidosFil: Alkaade, Samer. St. Louis University. School of Medicine; Estados UnidosFil: Cote, Gregory. Indiana University; Estados UnidosFil: Gardner, Timothy B.. Dartmouth-Hitchcock Medical Center; Estados UnidosFil: Amann, Stephen T.. North Mississippi Medical Center; Estados UnidosFil: Slivka, Adam. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Sandhu, Bimaljit. Virginia Commonwealth University Medical Center; Estados UnidosFil: Aloe, Amy. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Kienholz, Michelle L.. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Yadav, Dhiraj. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Barmada, M. Michael. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Bahar, Ivet. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: Lee, Min Goo. Yonsei University College of Medicine; Corea del SurFil: Whitcomb, David C.. Univeristy of Pittsburgh. School of Medicine; Estados UnidosFil: North American Pancreatitis Study Group. No especifica

    Racial and Ethnic Variations in Lung Cancer Incidence and Mortality: Results From the Women’s Health Initiative

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    This study aimed to evaluate racial/ethnic differences in lung cancer incidence and mortality in the Women’s Health Initiative Study, a longitudinal prospective cohort evaluation of postmenopausal women recruited from 40 clinical centers
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