94 results on '"David, Lynch"'
Search Results
2. Cardio-Obstetrics Team-Based Management of a Pregnant Patient With Severe Bioprosthetic Aortic Valve Disease
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Catherine Bigelow, MD, Alex Campbell, MD, Anil Poulose, MD, Heidi Sannes, CNP, Cassie Longtin, RN, David Lynch-Salamon, MD, and Retu Saxena, MD
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bioprosthetic valve degeneration ,cardio-obstetrics ,heart failure ,pregnancy ,transaortic valve replacement ,valve replacement ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
A 38-year-old pregnant patient was managed by the cardio-obstetrics multidisciplinary team for severe degenerative bioprosthetic aortic valve failure. She was medically managed utilizing echocardiogram and brain natriuretic peptide until she demonstrated worsening heart failure. A valve and cardio-obstetrics team evaluation led to valve-in-valve transcatheter aortic valve replacement at 30 weeks’ gestation.
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- 2024
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3. Improving the Mental Health of Resident Physicians and Fellows Through Transcendental Meditation
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David Lynch Foundation
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- 2021
4. Clinical management guidelines for Friedreich ataxia: best practice in rare diseases
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Louise A. Corben, Veronica Collins, Sarah Milne, Jennifer Farmer, Ann Musheno, David Lynch, Sub Subramony, Massimo Pandolfo, Jörg B. Schulz, Kim Lin, Martin B. Delatycki, and the Clinical Management Guidelines Writing Group
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Friedreich ataxia ,GRADE ,Guidelines ,Evidence ,Recommendations ,Medicine - Abstract
Abstract Background Individuals with Friedreich ataxia (FRDA) can find it difficult to access specialized clinical care. To facilitate best practice in delivering healthcare for FRDA, clinical management guidelines (CMGs) were developed in 2014. However, the lack of high-certainty evidence and the inadequacy of accepted metrics to measure health status continues to present challenges in FRDA and other rare diseases. To overcome these challenges, the Grading of Recommendations Assessment and Evaluation (GRADE) framework for rare diseases developed by the RARE-Bestpractices Working Group was adopted to update the clinical guidelines for FRDA. This approach incorporates additional strategies to the GRADE framework to support the strength of recommendations, such as review of literature in similar conditions, the systematic collection of expert opinion and patient perceptions, and use of natural history data. Methods A panel representing international clinical experts, stakeholders and consumer groups provided oversight to guideline development within the GRADE framework. Invited expert authors generated the Patient, Intervention, Comparison, Outcome (PICO) questions to guide the literature search (2014 to June 2020). Evidence profiles in tandem with feedback from individuals living with FRDA, natural history registry data and expert clinical observations contributed to the final recommendations. Authors also developed best practice statements for clinical care points that were considered self-evident or were not amenable to the GRADE process. Results Seventy clinical experts contributed to fifteen topic-specific chapters with clinical recommendations and/or best practice statements. New topics since 2014 include emergency medicine, digital and assistive technologies and a stand-alone section on mental health. Evidence was evaluated according to GRADE criteria and 130 new recommendations and 95 best practice statements were generated. Discussion and conclusion Evidence-based CMGs are required to ensure the best clinical care for people with FRDA. Adopting the GRADE rare-disease framework enabled the development of higher quality CMGs for FRDA and allows individual topics to be updated as new evidence emerges. While the primary goal of these guidelines is better outcomes for people living with FRDA, the process of developing the guidelines may also help inform the development of clinical guidelines in other rare diseases.
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- 2022
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5. Results of a randomized double‐blind study evaluating luvadaxistat in adults with Friedreich ataxia
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Hao Wang, Jonathan Norton, Lin Xu, Nicholas DeMartinis, Rohini Sen, Ankit Shah, Jennifer Farmer, and David Lynch
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Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Objectives Friedreich ataxia (FRDA) is a rare disorder with progressive neurodegeneration and cardiomyopathy. Luvadaxistat (also known as TAK‐831; NBI‐1065844), an inhibitor of the enzyme d‐amino acid oxidase, has demonstrated beneficial effects in preclinical models relevant to FRDA. This phase 2, randomized, double‐blind, placebo‐controlled, parallel‐arm study evaluated the efficacy and safety of oral luvadaxistat in adults with FRDA. Methods Adult patients with FRDA were randomized 2:1:2 to placebo, luvadaxistat 75 mg twice daily (BID), or luvadaxistat 300 mg BID for 12 weeks. The primary endpoint changed from baseline at week 12 on the inverse of the time to complete the nine‐hole peg test (9‐HPT−1), a performance‐based measure of the function of the upper extremities and manual dexterity. Comparisons between luvadaxistat and placebo were made using a mixed model for repeated measures. Results Of 67 randomized patients, 63 (94%) completed the study. For the primary endpoint, there was no statistically significant difference in change from baseline on the 9‐HPT−1 (seconds−1) at week 12 between placebo (0.00029) and luvadaxistat 75 mg BID (−0.00031) or luvadaxistat 300 mg BID (−0.00059); least squares mean differences versus placebo (standard error) were −0.00054 (0.000746) for the 75 mg dose and −0.00069 (0.000616) for the 300 mg dose. Luvadaxistat was safe and well tolerated; the majority of reported adverse events were mild in intensity. Interpretation Luvadaxistat was safe and well tolerated in this cohort of adults with FRDA; however, it did not demonstrate efficacy as a treatment for this condition.
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- 2021
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6. Assessment of Diversity and Fidelity of Transmission of Streptococcus mutans Genotypes in American Indian and Southeast Iowa Mother-Child Dyads
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Alissa Villhauer, David Lynch, John Warren, and David Drake
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Streptococcus mutans ,early childhood caries ,oral health disparities ,genotyping ,AP-PCR ,Dentistry ,RK1-715 - Abstract
Early childhood caries (ECC) is a common chronic infectious disease of childhood with a complex etiology and many contributing risk factors. Its prevalence is greater in certain racial and ethnic minority groups and populations with low socioeconomic status. Among the species of bacteria that contribute to the progression of dental caries, Streptococcus mutans (SM) has long been considered a primary etiological agent of the disease. We report here on the genotypic diversity, commonality, and fidelity of mother-child transmission of S. mutans in mother-child dyads in two high-risk populations.MethodsThirty-eight mother-child dyads from a Southeast Iowa population and 40 dyads from a Northern Plains American Indian Tribe were selected for a comparison of S. mutans genotype profiles within and between populations. S. mutans was isolated from whole mouth plaque samples collected from each subject. DNA was extracted and AP-PCR using OPA2 primer was performed. Amplified DNA was electrophoresed and images of the resulting patterns were compared via GelCompar®IIv6.5 software.ResultsThirty unique S. mutans genotypes were identified from the 1,638 S. mutans isolates analyzed. Fifteen genotypes (50%) were seen in both cohorts, while 11 were unique to the American Indian (AI) cohort and 4 were unique to the Southeast Iowa (SEI) population. Within the AI cohort, 61.5% (16/26) of the S. mutans genotypes identified were seen in ≥2 individuals and 14 of the 26 (53.8%) were seen in ≥2 dyads. In the SEI cohort, 78.9% (15/19) of the S. mutans genotypes identified were seen in ≥2 individuals and 13 of the 19 (68.4%) were present in ≥2 dyads. Fifty-seven percent of AI children and 23% of SEI children displayed fidelity of mother-child transmission of ≥1 S. mutans genotype.ConclusionIn comparing the populations, we observed large variation in genotypic diversity and fidelity of mother-child transmission, while the amount of commonality seen in both cohorts was similarly high in both groups. This study furthers our understanding of the genotypic diversity of S. mutans in both of these populations and provides a basis for further comparison to other populations at greater risk for developing ECC.
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- 2022
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7. How do Principals of High Performing Schools Achieve Sustained Improvement Results?
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Lewes Peddell, David Lynch, Richard Waters, Wendy Boyd, and Royce Willis
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ace model ,organisational readiness ,principal leadership ,school achievement ,school leadership ,Theory and practice of education ,LB5-3640 - Abstract
Education systems across the globe have enacted national testing regimes to monitor and report student achievement progress as an outcome of teaching performance. This paper reports on an investigation of strategies that Principals of high achieving schools use to achieve school results, based on NAPLAN reports (the National Assessment Program in Australia) and interpreted via the Alignment, Capability and Engagement (ACE) model of organisational readiness. Our findings identified specific Principal behaviours, actions and attitudes as necessary for effective school-wide improvement programs, as well as the existence of commonly shared strategies and approaches that help to explain why these particular Principals have been successful in their pursuit of school improvement. These include a shared vision for improvement, use of data-driven decision making, and building positive, “transparent” relationships to encourage teacher buy-in. Importantly, these findings identified “organisational readiness”, a foundational principle of the ACE model, as a fundamental requisite to effective school improvement.
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- 2020
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8. A natural history study to track brain and spinal cord changes in individuals with Friedreich's ataxia: TRACK-FA study protocol.
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Nellie Georgiou-Karistianis, Louise A Corben, Kathrin Reetz, Isaac M Adanyeguh, Manuela Corti, Dinesh K Deelchand, Martin B Delatycki, Imis Dogan, Rebecca Evans, Jennifer Farmer, Marcondes C França, William Gaetz, Ian H Harding, Karen S Harris, Steven Hersch, Richard Joules, James J Joers, Michelle L Krishnan, Michelle Lax, Eric F Lock, David Lynch, Thomas Mareci, Sahan Muthuhetti Gamage, Massimo Pandolfo, Marina Papoutsi, Thiago J R Rezende, Timothy P L Roberts, Jens T Rosenberg, Sandro Romanzetti, Jörg B Schulz, Traci Schilling, Adam J Schwarz, Sub Subramony, Bert Yao, Stephen Zicha, Christophe Lenglet, and Pierre-Gilles Henry
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Medicine ,Science - Abstract
IntroductionDrug development for neurodegenerative diseases such as Friedreich's ataxia (FRDA) is limited by a lack of validated, sensitive biomarkers of pharmacodynamic response in affected tissue and disease progression. Studies employing neuroimaging measures to track FRDA have thus far been limited by their small sample sizes and limited follow up. TRACK-FA, a longitudinal, multi-site, and multi-modal neuroimaging natural history study, aims to address these shortcomings by enabling better understanding of underlying pathology and identifying sensitive, clinical trial ready, neuroimaging biomarkers for FRDA.Methods200 individuals with FRDA and 104 control participants will be recruited across seven international study sites. Inclusion criteria for participants with genetically confirmed FRDA involves, age of disease onset ≤ 25 years, Friedreich's Ataxia Rating Scale (FARS) functional staging score of ≤ 5, and a total modified FARS (mFARS) score of ≤ 65 upon enrolment. The control cohort is matched to the FRDA cohort for age, sex, handedness, and years of education. Participants will be evaluated at three study visits over two years. Each visit comprises of a harmonized multimodal Magnetic Resonance Imaging (MRI) and Spectroscopy (MRS) scan of the brain and spinal cord; clinical, cognitive, mood and speech assessments and collection of a blood sample. Primary outcome measures, informed by previous neuroimaging studies, include measures of: spinal cord and brain morphometry, spinal cord and brain microstructure (measured using diffusion MRI), brain iron accumulation (using Quantitative Susceptibility Mapping) and spinal cord biochemistry (using MRS). Secondary and exploratory outcome measures include clinical, cognitive assessments and blood biomarkers.DiscussionPrioritising immediate areas of need, TRACK-FA aims to deliver a set of sensitive, clinical trial-ready neuroimaging biomarkers to accelerate drug discovery efforts and better understand disease trajectory. Once validated, these potential pharmacodynamic biomarkers can be used to measure the efficacy of new therapeutics in forestalling disease progression.Clinical trial registrationClinicalTrails.gov Identifier: NCT04349514.
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- 2022
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9. Mutans Streptococci and Lactobacilli: Colonization Patterns and Genotypic Characterization of Cariogenic Bacterial Species in American Indian Children
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Alissa Villhauer, David Lynch, Taylor Postler, Deborah Dawson, and David Drake
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Streptococcus sobrinus ,Streptococcus mutans ,lactobacilli ,severe early childhood caries ,oral health disparities ,genotyping ,Dentistry ,RK1-715 - Abstract
Aim: The purpose of this study was to investigate the presence of Streptococcus mutans, Streptococcus sobrinus, and Lactobacillus species in an American Indian population displaying a high incidence of severe early childhood caries (S-ECC) and to explore the genotypic diversity and fidelity of transmission of S. sobrinus in this population.Methods: We report here on the microbial profiles of 71 children compiled from birth to 36 months of age and initial exploration of genotypic diversity in a subset of 40 mother/child dyads. Whole mouth plaque samples were collected from mother/child dyads in a Northern Plains American Indian cohort. Mutans streptococci (MS) and Lactobacillus counts were recorded and presence/absence of S. mutans, S. sobrinus, and Lactobacillus was noted for each child. S. sobrinus was isolated and genotyped via arbitrarily primed-polymerase chain reaction (AP-PCR).Results: The children in this study were divided into caries active (CA) and caries free (CF) groups. S. mutans, S. sobrinus, and Lactobacillus species were detected more frequently in CA groups. Distribution of MS and Lactobacillus counts was significantly different between the two groups, as was the distribution of three species colonization profiles. Twelve S. sobrinus genotypes were detected in the subset of mother/child dyads. Individual participants displayed a range of 0–3 distinct genotypes while mother/child pairs displayed a range of 1–5 genotypes. Eighty-three percent of children shared at least one genotype with his/her mother.Conclusion: Caries active children in this population display different microbial profiles than the caries free children in this cohort. A small number of S. sobrinus genotypes appear to be very common in this population. A high rate of vertical transmission of S. sobrinus from mother to child is seen in these mother/child dyads.
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- 2021
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10. Plasma next generation sequencing and droplet digital PCR‐based detection of epidermal growth factor receptor (EGFR) mutations in patients with advanced lung cancer treated with subsequent‐line osimertinib
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Pei N. Ding, Therese Becker, Victoria Bray, Wei Chua, Yafeng Ma, Bo Xu, David Lynch, Paul de Souza, and Tara Roberts
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Circulating tumor DNA ,droplet digital PCR ,next generation sequencing ,plasma genotyping ,resistance mechanisms ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background Gene mutation analysis from plasma circulating tumor DNA (ctDNA) can provide timely information regarding the mechanism of resistance that could translate to personalised treatment. We compared concordance rate of next generation sequencing (NGS) and droplet digital polymerase chain reaction (ddPCR) in the detection of the EGFR activating and T790M mutation from plasma ctDNA with diagnostic tissue biopsy‐based assays. The second objective was to test whether putative osimertinib resistance associated mutations were detectable from plasma using NGS. Methods From January 2016 to December 2017, we prospectively collected plasma samples from patients prior to commencement of second‐ or third‐line osimertinib therapy and upon disease progression, in a single tertiary hospital in South Western Sydney, Australia. Amplicon‐based NGS and ddPCR assays were used to detect activating epidermal growth factor receptor (EGFR) and T790M mutations in 18 plasma samples from nine patients; all patients were required to have tissue biopsies with known EGFR status. Results High concordance of allelic fractions were seen in matched plasma NGS and ddPCR for activating EGFR mutations and T790M mutations (R2 = 0.92, P
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- 2019
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11. Drp1‐dependent peptide reverse mitochondrial fragmentation, a homeostatic response in Friedreich ataxia
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Joseph Johnson, Elizabeth Mercado‐Ayón, Elisia Clark, David Lynch, and Hong Lin
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ATP ,Drp1 ,Drp1‐dependent small peptides ,frataxin ,Friedreich ataxia ,mitochondrial fragmentation ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Abstract Friedreich ataxia is an autosomal recessive, neurodegenerative disease characterized by the deficiency of the iron‐sulfur cluster assembly protein frataxin. Loss of this protein impairs mitochondrial function. Mitochondria alter their morphology in response to various stresses; however, such alterations to morphology may be homeostatic or maladaptive depending upon the tissue and disease state. Numerous neurodegenerative diseases exhibit excessive mitochondrial fragmentation, and reversing this phenotype improves bioenergetics for diseases in which mitochondrial dysfunction is a secondary feature of the disease. This paper demonstrates that frataxin deficiency causes excessive mitochondrial fragmentation that is dependent upon Drp1 activity in Friedreich ataxia cellular models. Drp1 inhibition by the small peptide TAT‐P110 reverses mitochondrial fragmentation but also decreases ATP levels in frataxin‐knockdown fibroblasts and FRDA patient fibroblasts, suggesting that fragmentation may provide a homeostatic pathway for maintaining cellular ATP levels. The cardiolipin‐stabilizing compound SS‐31 similarly reverses fragmentation through a Drp1‐dependent mechanism, but it does not affect ATP levels. The combination of TAT‐P110 and SS‐31 does not affect FRDA patient fibroblasts differently from SS‐31 alone, suggesting that the two drugs act through the same pathway but differ in their ability to alter mitochondrial homeostasis. In approaching potential therapeutic strategies for FRDA, an important criterion for compounds that improve bioenergetics should be to do so without impairing the homeostatic response of mitochondrial fragmentation.
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- 2021
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12. Comparison of neutrophil to lymphocyte ratio and prognostic nutritional index with other clinical and molecular biomarkers for prediction of glioblastoma multiforme outcome.
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Celine Garrett, Therese M Becker, David Lynch, Joseph Po, Wei Xuan, Kieran F Scott, and Paul de Souza
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Medicine ,Science - Abstract
ObjectivePre- and post-operative neutrophil to lymphocyte ratio (NLR) and prognostic nutritional index (PNI) and other prognostic clinicopathological variables were correlated with progression free survival (PFS) and overall survival (OS) of Glioblastoma Multiforme (GBM) patients.MethodsGBM patients (n = 87, single-centre, recruited 2013-2019) were retrospectively divided into low and high groups using literature-derived cut-offs (NLR = 5.07, PNI = 46.97). Kaplan-Meier survival curves and log rank tests assessed PFS and OS. Univariate and multivariate analyses identified PFS and OS prognosticators.ResultsHigh vs low post-operative PNI cohort was associated with longer PFS (279 vs 136 days, p = 0.009), but significance was lost on multivariate analysis. Post-operative ECOG (p = 0.043), daily dexamethasone (p = 0.023) and IDH mutation (p = 0.046) were significant on multivariate analysis for PFS. High pre- and post-operative PNI were associated with improved OS (384 vs 114 days, p = 0.034 and 516 vs 245 days, p = 0.001, respectively). Low postoperative NLR correlated with OS (408 vs 249 days, p = 0.029). On multivariate analysis using forward selection process, extent of resection (EOR) (GTR vs biopsy, p = 0.004 and STR vs biopsy, p = 0.011), and any previous surgery (p = 0.014) were independent prognostic biomarkers for OS. On multivariate analysis of these latter variables with literature-derived prognostic biomarkers, EOR remained significantly associated with OS (p = 0.037).ConclusionsEOR, followed by having any surgery prior to GBM, are the most significant independent predictors of GBM patient's OS. Post-operative ECOG, daily dexamethasone and IDH mutation are independent prognostic biomarkers for PFS. PNI may be superior to NLR. Post- vs pre-operative serum inflammatory marker levels may be associated with survival.
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- 2021
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13. Identification and characterisation of capidermicin, a novel bacteriocin produced by Staphylococcus capitis.
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David Lynch, Paula M O'Connor, Paul D Cotter, Colin Hill, Des Field, and Máire Begley
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Medicine ,Science - Abstract
One hundred human-derived coagulase negative staphylococci (CoNS) were screened for antimicrobial activity using agar-based deferred antagonism assays with a range of indicator bacteria. Based on the findings of the screen and subsequent well assays with cell free supernatants and whole cell extracts, one strain, designated CIT060, was selected for further investigation. It was identified as Staphylococcus capitis and herein we describe the purification and characterisation of the novel bacteriocin that the strain produces. This bacteriocin which we have named capidermicin was extracted from the cell-free supernatant of S. capitis CIT060 and purified to homogeneity using reversed-phase high performance liquid chromatography (RP-HPLC). Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometric (MS) analysis revealed that the capidermicin peptide has a mass of 5,464 Da. Minimal inhibitory concentration (MIC) experiments showed that capidermicin was active in the micro-molar range against all the Gram-positive bacteria that were tested. Antimicrobial activity was retained over a range of pHs (2-11) and temperatures (10-121°C x 15 mins). The draft genome sequence of S. capitis CIT060 was determined and the genes predicted to be involved in the biosynthesis of capidermicin were identified. These genes included the predicted capidermicin precursor gene, and genes that are predicted to encode a membrane transporter, an immunity protein and a transcriptional regulator. Homology searches suggest that capidermicin is a novel member of the family of class II leaderless bacteriocins.
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- 2019
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14. Interstitial Lung Abnormalities at CT in the Korean National Lung Cancer Screening Program: Prevalence and Deep Learning–based Texture Analysis
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Kum Ju Chae, Soyeoun Lim, Joon Beom Seo, Hye Jeon Hwang, Hyemi Choi, David Lynch, and Gong Yong Jin
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Radiology, Nuclear Medicine and imaging - Published
- 2023
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15. Detection and Early Referral of Patients With Interstitial Lung Abnormalities
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Gary M. Hunninghake, Jonathan G. Goldin, Michael A. Kadoch, Jonathan A. Kropski, Ivan O. Rosas, Athol U. Wells, Ruchi Yadav, Howard M. Lazarus, Fereidoun G. Abtin, Tamera J. Corte, Joao A. de Andrade, Kerri A. Johannson, Martin R. Kolb, David A. Lynch, Justin M. Oldham, Paolo Spagnolo, Mary E. Strek, Sara Tomassetti, George R. Washko, Eric S. White, Fereidoun Abtin, Katerina Antoniou, Timothy Blackwell, Kevin Brown, Jonathan Chung, Tamera Corte, Bruno Crestani, Peter Crossno, Daniel Culver, Joao de Andrade, Anand Deveraj, Kevin Flaherty, Gunnar Gudmundsson, Hiroto Hatabu, Joe Jacob, Kerri Johansson, Jeff Kanne, Ella Kazerooni, Martin Kolb, David Lynch, Toby Maher, Fernando Martinez, Antonio Morais, Steven D. Nathan, Imre Noth, Justin Oldham, Anna Podolanczuk, Venerino Poletti, Claudia Ravaglia, Elizabetta Renzoni, Luca Richeldi, Geoffrey Rubin, Chris Ryerson, Debasis Sahoo, Rob Suh, Nicola Sverzellati, Dominique Valeyre, Simon Walsh, and George Washko
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Referral ,business.industry ,Interstitial lung disease ,Pulmonologist ,respiratory system ,Critical Care and Intensive Care Medicine ,medicine.disease ,respiratory tract diseases ,Pulmonary function testing ,FEV1/FVC ratio ,medicine ,Honeycombing ,Cardiology and Cardiovascular Medicine ,Intensive care medicine ,business ,Pulmonologists ,Lung cancer screening - Abstract
Background Interstitial lung abnormalities (ILA) may represent undiagnosed early-stage or subclinical interstitial lung disease (ILD). ILAs are often observed incidentally in patients who subsequently develop clinically overt ILD. There is limited information on consensus definitions for, and the appropriate evaluation of, ILA. Early recognition of patients with ILD remains challenging, yet critically important. Expert consensus could inform early recognition and referral. Research Question Can consensus-based expert recommendations be identified to guide clinicians in the recognition, referral, and follow-up of patients with or at risk of developing early ILDs? Study Design and Methods Pulmonologists and radiologists with expertise in ILD participated in two iterative rounds of surveys. The surveys aimed to establish consensus regarding ILA reporting, identification of patients with ILA, and identification of populations that might benefit from screening for ILD. Recommended referral criteria and follow-up processes were also addressed. Threshold for consensus was defined a priori as ≥ 75% agreement or disagreement. Results Fifty-five experts were invited and 44 participated; consensus was reached on 39 of 85 questions. The following clinically important statements achieved consensus: honeycombing and traction bronchiectasis or bronchiolectasis indicate potentially progressive ILD; honeycombing detected during lung cancer screening should be reported as potentially significant (eg, with the Lung CT Screening Reporting and Data System “S-modifier” [which indicates clinically significant or potentially significant noncancer findings]), recommending referral to a pulmonologist in the radiology report; high-resolution CT imaging and full pulmonary function tests should be ordered if nondependent subpleural reticulation, traction bronchiectasis, honeycombing, centrilobular ground-glass nodules, or patchy ground-glass opacity are observed on CT imaging; patients with honeycombing or traction bronchiectasis should be referred to a pulmonologist irrespective of FVC and diffusion capacity values; and patients with systemic sclerosis should be screened with pulmonary function tests for early-stage ILD. Interpretation Guidance for identifying clinically relevant ILA, with subsequent referral and follow-up, was established. These results lay the foundation for developing practical guidance on managing patients with ILA.
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- 2022
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16. Predicting COPD Progression in Current and Former Smokers Using a Joint Model for Forced Expiratory Volume in 1 Second and Forced Expiratory Volume in 1 Second to Forced Vital Capacity Ratio
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Matthew, Strand, Aastha, Khatiwada, David, Baraghoshi, David, Lynch, Edwin K, Silverman, Surya P, Bhatt, Erin, Austin, Elizabeth A, Regan, Aladin M, Boriek, and James D, Crapo
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Pulmonary and Respiratory Medicine ,Origianl Research - Abstract
Understanding baseline characteristics that can predict the progression of lung disease such as chronic obstructive pulmonary disease (COPD) for current or former smokers may allow for therapeutic intervention, particularly for individuals at high risk of rapid disease progression or transition from non-COPD to COPD. Classic diagnostic criteria for COPD and disease severity such as the Global Initiative for Chronic Obstructive Lung Disease document are based on forced expiratory volume in 1 second (FEV(1)) and FEV(1) to forced vital capacity (FVC) ratio. Modeling changes in these outcomes jointly is beneficial given that they are correlated, and they are both required for specific disease classifications. Here, linear mixed models were used to model changes in FEV(1) and FEV(1)/FVC jointly for 5- and 10-year intervals, using important baseline predictors to better understand the factors that affect disease progression. Participants with predicted loss of FEV(1) and/or FEV(1)/FVC of at least 5% tended to have more emphysema, higher functional residual capacity, higher airway wall thickness as measured by Pi10, lower FVC to total lung capacity ratio and a lower body mass index at baseline, all relative to overall cohort averages. The model developed can be used to predict progression for any potential COPD individual, based on demographic, symptom, computed tomography, and comorbidity variables.
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- 2022
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17. Teacher of Mathematics Identity as a Predictor of Teacher Wellbeing
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Tony Yeigh, Royce Willis, Sarah James, Warren Lake, David Lynch, Lewes Peddell, Bruce Knight, Megan Lee, and Darius Samojlowicz
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Education - Abstract
This article reports on original research investigating teacher wellbeing while teaching mathematics in relation to teacher identity. Using survey data from mathematics teachers (N = 402) participating in a teacher of mathematics support initiative, teacher wellbeing was operationally defined as the experience of wellbeing whilst teaching, allowing an applied understanding of wellbeing in relation to the activity of teaching. Teacher identity was construed from prior research by the authors (Willis et al., in: Math Educ Res J, 10.1007/s13394-021-00391-w, 2021) and operationalised for the current study in terms of a specific teacher of mathematics identity (ToMI) construct. The main research question for this investigation was directed at how well the ToMI construct, as a wellbeing variable, was able to predict teacher wellbeing while teaching, viewed as an ‘in situ’ or ‘active’ (applied) measure of wellbeing. Identity-Based Motivation (IBM) theory was used to frame the research, as it helps explain how the degree of congruency between identity and wellbeing may influence motivation to teach. Results indicated that although several important factors relate significantly to teacher of mathematics wellbeing, the ToMI construct predicted teacher wellbeing far above the ability of all other study factors combined, suggesting that a focus on the development of a professional identity for teachers is fundamental to the support of teacher wellbeing in schools. Suggestions for investigating this focus at the school level are also provided.
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- 2023
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18. Isolation of Circulating Tumor Cells from Glioblastoma Patients by Direct Immunomagnetic Targeting
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David Lynch, Branka Powter, Joseph William Po, Adam Cooper, Celine Garrett, Eng-Siew Koh, Mark Sheridan, James van Gelder, Balsam Darwish, Simon Mckechnie, Renata Bazina, Matthias Jaeger, Tara Laurine Roberts, Paul de Souza, and Therese Maria Becker
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glioblastoma ,circulating tumor cell (CTC) ,biomarker ,blood ,liquid biopsy ,immunomagnetic enrichment ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Glioblastoma (GBM) is the most common form of primary brain cancer in adults and tissue biopsies for diagnostic purposes are often inaccessible. The postulated idea that brain cancer cells cannot pass the blood–brain barrier to form circulating tumor cells (CTCs) has recently been overthrown and CTCs have been detected in the blood of GBM patients albeit in low numbers. Given the potential of CTCs to be analyzed for GBM biomarkers that may guide therapy decisions it is important to define methods to better isolate these cells. Here, we determined markers for immunomagnetic targeting and isolation of GBM-CTCs and confirmed their utility for CTC isolation from GBM patient blood samples. Further, we identified a new marker to distinguish isolated GBM-CTCs from residual lymphocytes.
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- 2020
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19. Improved ovarian cancer EMT-CTC isolation by immunomagnetic targeting of epithelial EpCAM and mesenchymal N-cadherin
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Joseph W Po, Aflah Roohullah, David Lynch, Anna DeFazio, Michelle Harrison, Paul R Harnett, Catherine Kennedy, Paul de Souza, and Therese M Becker
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Epithelial cell adhesion molecule (EpCAM)-targeted capture remains the most common isolation strategy for circulating tumor cells (CTCs). However, epithelial-to-mesenchymal transition (EMT) leads to decreased epithelial EpCAM expression affecting the optimal CTC capture. In this study, we tested a cohort of ovarian cancer cell lines using flow cytometry to identify N-cadherin as the additional immunomagnetic cell surface target for ovarian cancer cell isolation. Combined immunomagnetic targeting of mesenchymal N-cadherin and epithelial EpCAM enriched CTCs from advanced ovarian cancer patient blood approximately three times more efficiently than targeting of EpCAM alone. We also show that more EMT-phenotype CTCs are captured by including N-cadherin targeting into CTC isolation protocols. However, after N-cadherin-based CTC isolation, in some blood samples of healthy individuals, we also observed the presence of cells expressing markers common to CTCs. Our data show that these “false positives” can be largely distinguished from CTCs as circulating endothelial cells (CECs) by vascular endothelial–cadherin co-staining. CEC counts are highly variable in patients and healthy controls. Our data demonstrate that a combination of EpCAM with N-cadherin-targeted isolation can improve CTC detection and widen the EMT-phenotype spectrum of captured CTCs.
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- 2018
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20. Author Correction: Teacher of mathematics identity as a predictor of teacher Wellbeing
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Tony Yeigh, Royce Willis, Sarah James, Warren Lake, David Lynch, Lewes Peddell, Bruce Knight, Megan Lee, and Darius Samojlowicz
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Education - Published
- 2022
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21. Improving Teaching Through Coaching, Mentoring and Feedback: A Review of Literature
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David Lynch
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business.industry ,Professional development ,Globe ,Teacher learning ,Coaching ,medicine.anatomical_structure ,Work (electrical) ,Prima facie ,Pedagogy ,medicine ,Relevance (information retrieval) ,Sociology ,Comparative perspective ,business - Abstract
This article investigates the literature on mentoring and coaching and the embeddedness of these in wider fields which are referred as 'professional development' and 'teacher learning'. It concentrates on education but also considers selected work from other professions to provide a comparative perspective on the education material. There are clearly identifiable similarities across all of the literature reviewed, despite different lexicons. The review also identifies what appears to be recurrent theoretical and research issues and difficulties in the mentoring and coaching and professional development literatures. These have prima facie relevance for the teacher professional development projects and activities currently being underway by education jurisdictions across the globe. They are summarised at the end of the article.
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- 2021
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22. PATIENT PERCEPTIONS OF USING VOICE-BASED DIETARY ASSESSMENT TOOLS AMONG OLDER ADULTS
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Tiffany Driesse, Xiaohui Liang, Michael Fowler, Jing Yuan, Hillary Spangler, David Lynch, and John Batsis
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Health (social science) ,Life-span and Life-course Studies ,Health Professions (miscellaneous) - Abstract
Poor diet among older adults is a risk factor for developing multiple chronic diseases. Dietary recall comprises an important component in intervention research and clinical care. Commonly used tools include the web-based automated self-administered 24-hour assessment (ASA-24). Yet voice assistant (VAS) systems (i.e., Amazon Alexa) have not been developed for this purpose. Hence, we evaluated patient perceptions on performing a VAS-based dietary assessment among older adults. Community-dwelling adults (age 65+ years) participated in two virtual sessions who reported their past 24-hour intake, first using ASA-24, and then using a VAS. All completed a Likert questionnaire (binary, % strongly agree/strongly disagree reported) regarding the simplicity of using both systems, completion time, and user satisfaction. Semi-structured interviews allowed us to ask about technology use. Of the 40 participants (100% enrolled), mean age was 69±1.0 years (85% female, 100% white, 5% Latinx). Only 40% owned a VAS; 60% reported having VAS experience prior to the study. After completing both sessions, 80% preferred a VAS over the ASA-24. Participants reported that web-based recalls were unnecessarily complex (60%), time-consuming (50%), and 60% did not wish to use them. Comparatively, VAS recalls were intuitive (75%), easily reportable (85%), and there was willingness to report food while preparing meals (85%). In 16 participants, we evaluated themes of VAS use including easier navigation, less time, and ability to have a natural conversation. A VAS provides a more convenient, conversational, and computerless interaction to report meals over web-based solutions suggesting they hold promise for dietary recall in older adults.
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- 2022
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23. PROTEIN SUPPLEMENTATION NEGATIVELY IMPACTS GLUCOSE HOMEOSTASIS IN A WEIGHT LOSS INTERVENTION IN OLDER ADULTS
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John Batsis, Curtis Petersen, David Lynch, Hillary Spangler, and Summer Cook
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Health (social science) ,Life-span and Life-course Studies ,Health Professions (miscellaneous) - Abstract
Background Higher dietary intake of protein has also been associated with increased risk of type 2 diabetes, yet losing weight improves glucose metabolism and homeostasis. We evaluated whether a multicomponent weight loss intervention in older persons with obesity aged 65+ years augmented with protein supplementation impacts glucose homeostasis. Methods A 12-week, non-randomized, parallel group intervention in 28 older rural adults with obesity (body mass index (BMI)≥30kg/m2) was conducted at a community aging center of a protein and non-protein arms. Both received individualized, weekly dietitian visits with twice weekly physical therapist-led group strength training classes; aerobic exercise was prescribed outside the classes. The protein group was provided with whey protein supplementation three times weekly post-strength training. Pre/post fasting glucose, insulin, and c-peptide levels were assessed with HOMA-IR and HOMA beta-cell function calculated. Results Mean age was 72.9±4.4 (86% female) and 73.0±6.3 (79% female), p=0.94, with baseline BMI of 37.6±6.9 and 36.6±5.5, in the protein and non-protein groups, respectively. Mean weight-loss was -3.45±2.86kg and -5.79±3.08kg (both p< 0.001; Δ p=0.047). Visceral fat decreased less in the protein group (-0.02mL vs. -1.02ml;p=0.007), while appendicular lean mass did not (p=0.44). There was lower fasting glucose (protein:-4mg±13.9mg/dL vs. non-protein: 12.2±25.8, effect size:-0.40;p=.10), insulin (-1.32±4.68 vs. -7.79±10.14, ES:0.82;p=0.01), and higher c-peptide (-0.02±0.67 vs. -0.69±1.25,ES:0.66;p=0.06) at follow-up. HOMA-IR also decreased less (-0.18±0.64 vs. -1.08±1.50, ES:0.78; p=0.02) and b-cell function (-3.94±22.61 vs. -16.81±33.85; ES:0.45; p=0.09]). Conclusions A multicomponent obesity intervention incorporating protein supplementation led to lower degree of weight loss and mitigated the benefit on glucose homeostasis.
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- 2022
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24. ASSOCIATION OF MID UPPER ARM CIRCUMFERENCE AND COGNITION: A POPULATION-BASED COHORT STUDY
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David Lynch, Annie Green Howard, Hsiao-Chuan Tien, Shufa Du, Bing Zhang, Huijun Wang, Penny Gordon-Larsen, and John Batsis
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Health (social science) ,Life-span and Life-course Studies ,Health Professions (miscellaneous) - Abstract
Introduction Evidence suggests a positive association between muscle mass and cognitive impairment exists. Mid-upper arm muscle circumference (MUMC) is a simple measure that may provide prognostic information on cognitive status. Methods We included adults aged ≥55 years from the China Health and Nutrition Survey 1997-2018 with MUAC and triceps skinfold (TSF) measurements at each visit. Cognition was estimated based on a subset of the modified Telephone Interview for Cognitive Status (TICS, 0─27). Sex-stratified linear mixed-effects models accounting for within-individual and within-community correlation assessed the association between MUAC and the ratio of MUAC:TSF with TICS across age. We tested whether the rate of cognitive decline by age differed by quartiles of MUAC and MUAC:TSF in separate models. In cases of no statistical differences in cognitive declines by age, we tested whether overall cognitive function was associated with quartiles of MUAC and MUAC:TSF across all ages. Results Of 5,964 adults (53% female, age 62.4±6.4), mean MUAC was 26.6±3.74 and 26.2±3.9 cm, mean MUAC:TSF ratio was 2.9±1.6 and 1.94±1.1, and baseline TICS was 15.4±6.1 and 13.2±6.4 for men and women, respectively. MUAC was not associated with the rate of cognitive decline. Lower MUAC was associated with higher overall cognitive function scores for men (p=0.01) and women (p=0.05). For men and women there was no association between MUAC:TSF ratio and either cognitive decline or overall function. Conclusion MUMC can be a marker to predict overall cognitive function across this period in the lifecycle, suggesting that declining MUAC may help predict lower overall cognitive function
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- 2022
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25. ‘Readiness’, Talent Management and Adaptive Solutions to enable Teachers in Indigenous Schools to Improve their Teaching
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Tina Doe, Royce Willis, Lewes Peddell, David Lynch, Tony Yeigh, and Sarah James
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Arts and Humanities (miscellaneous) ,Education - Abstract
This paper provides an insight into an explorative school-improvement program, known as the Indigenous Schools ‘readiness’ Program (ISRP) which sought to deal with educational challenges in a novel, yet evidenceinformed manner. Specifically, the program sought to engage a school’s teaching staff, what is referred to as the Talent in the program, to deal with localised Indigenous school challenges by having them conceptualise and deliver their improvement plans through three inter-related elements: ‘readiness’, Talent and Adaptive Solutions. The paper suggests that despite the best intentions of parties involved, establishing and maintaining such a program, at least to the point of being able to properly implement and evaluate it, requires that the schooling context, i.e., the community in which it serves, has first created the required community conditions. In effect, engaged its own adaptive solution to inherent challenges.
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- 2020
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26. A multi-level grammar approach to grammar-guided genetic programming: the case of scheduling in heterogeneous networks
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David Lynch, Michael O'Neill, Holger Claussen, Stepan Kucera, Takfarinas Saber, and David Fagan
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education.field_of_study ,Grammar ,Computer science ,Distributed computing ,media_common.quotation_subject ,Population ,Layered learning ,Genetic programming ,0102 computer and information sciences ,02 engineering and technology ,01 natural sciences ,Computer Science Applications ,Theoretical Computer Science ,Scheduling (computing) ,010201 computation theory & mathematics ,Hardware and Architecture ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Overall performance ,education ,Software ,Heterogeneous network ,media_common - Abstract
The scale at which the human race consumes data has increased exponentially in recent years. One key part in this increase has been the usage of smart phones and connected devices by the populous. Multi-level heterogeneous networks are the driving force behind this mobile revolution, but these are constrained with limited bandwidth and over-subscription. Scheduling users on these networks has become a growing issue. In recent years grammar-guided genetic programming (G3P) has shown its capability to evolve beyond human-competitive network schedulers. Despite the performance of the G3P schedulers, a large margin of improvement is demonstrated to still exist. In the pursuit of this goal we recently proposed a multi-level grammar approach to generating schedulers. The complexity of the grammar was increased at various stages during evolution, allowing for individuals to add more complex functions through variation operations. The goal is to evolve good quality solutions before allowing the population to specialise more as the grammar functionality increased in a layered learning way. In this paper the results of this initial study are replicated, and confirmed, and it is seen that this approach improves the quality of the evolved schedulers. However, despite the gain in performance, we notice that the proposed approach comes with an acute sensitivity to the generation at which the grammar complexity is increased. Therefore, we put forward a novel seeding strategy and show that the seeding strategy mitigates the shortcomings of the original approach. The use of the seeding strategy outperforms the original approach in all the studied cases, and thus yields a better overall performance than the state-of-the-art G3P generated schedulers.
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- 2019
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27. Lenalidomide-Associated Hemophagocytic Lymphohistiocytosis With Plasma Cell Phagocytosis
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Joshua L. Fenderson, Chung-ting J Kou, Matthew J. Rendo, David Lynch, and Elliot Runge
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Phagocytosis ,lenalidomide ,Adult population ,030204 cardiovascular system & hematology ,Plasma cell ,medicine.disease_cause ,diagnosis of multiple myeloma ,03 medical and health sciences ,0302 clinical medicine ,hemic and lymphatic diseases ,medicine ,secondary hlh ,Multiple myeloma ,Lenalidomide ,Hemophagocytic lymphohistiocytosis ,business.industry ,General Engineering ,Hematology ,Immune dysregulation ,medicine.disease ,medicine.anatomical_structure ,Oncology ,Immunology ,hemophagocytic lymphohistiocytosis (hlh) ,Hemophagocytosis ,business ,030217 neurology & neurosurgery ,medicine.drug - Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a severe systemic inflammatory syndrome that is often fatal. In the adult population, it is believed to develop secondary to immune dysregulation due to rheumatologic, infectious, malignant, and recently, immunomodulatory drugs. It’s co-occurrence with phagocytosis by non-macrophage cells has not been previously well defined. We present a case of lenalidomide-associated HLH with concurrent plasma cell hemophagocytosis in a patient with controlled multiple myeloma (MM).
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- 2021
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28. Association of Obesity, Multiple Chronic Conditions, and Frailty: the National Health and Aging Trends Survey
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John Batsis, Christian Haudenschild, Anna Kahkoska, rebecca Crow, David Lynch, Curtis Petersen, and Matthew Lohman
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Health (social science) ,food and beverages ,Life-span and Life-course Studies ,Health Professions (miscellaneous) - Abstract
As life expectancy increases, so does the risk of developing multiple chronic conditions (MCC). This is concerning as there is a growing obesity epidemic in older adults which is also associated with developing chronic diseases. Both obesity and MCC also increase the risk of frailty, yet the intersection of the three is not well understood. We evaluated the relationship between obesity, multimorbidity, and frailty using data from adults ≥65 years from the National Health and Aging Trends Survey. Obesity was classified using standard body mass index categories (e.g., ≥30kg/m2) and waist circumference (WC; females≥88cm; males≥102cm). MCC was classified as having ≥2 chronic conditions. Adjusted logistic regression models evaluated the association of BMI or WC categories on MCC (yes/no). An analysis limited to persons with obesity evaluated the relationship between frailty phenotypes (e.g, robust, pre-frail, frail) and MCC. Of the 4,967 participants (59.7% female), 79% resided in a private residence. The 70-79 age category was most prevalent. In those with MCC, there were 1,511 (30.4%) classified as having obesity using BMI, and 3,358 (67.6%) using WC. In those without MCC, there were 287 (17.6%) and 744 (51.7%). Compared to normal BMI, the odds of MCC was 0.71 [0.46,1.09], 1.25 [1.08,1.45] and 2.59 [2.15,3.11] in underweight, overweight and obesity. In pre-frailty and frailty, the odds of MCC were 2.52 [1.77,3.59] and 8.35 [3.7,18.85] in BMI-defined obesity. Using WC, the odds were 2.38 [1.94,2.91], and 5.89 [3.83,9.06]. Obesity using both BMI and WC are both strongly associated with multimorbidity and frailty.
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- 2021
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29. Obesity and Multimorbidity in the USA: National Health and Nutrition Examination Surveys 2005-2014
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David Lynch, Curtis Petersen, Hillary Spangler, Anna Kahkoska, and John Batsis
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Abstracts ,Health (social science) ,Session 9030 (Poster) ,Life-span and Life-course Studies ,Aging and Chronic Health Conditions II ,AcademicSubjects/SOC02600 ,Health Professions (miscellaneous) - Abstract
Declining mortality rates and an aging population have contributed to increasing rates of multimorbidity (≥2 chronic conditions) in the United States. Obesity is an important risk factor for the development of chronic diseases. We evaluated the association between obesity and multimorbidity, and how the prevalence of concomitant obesity has changed over time. We used data from 8,883 individuals aged ≥60 years with data on body mass index (BMI) and self-reported comorbidities from the National Health and Nutrition Examination Surveys 2005-2014. Logistic regression was used to quantify the association between BMI categories (
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- 2021
30. Lobar Emphysema Distribution Is Associated With 5-Year Radiological Disease Progression
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Adel Boueiz, Yale Chang, Michael H. Cho, George R. Washko, Raul San José Estépar, Russell P. Bowler, James D. Crapo, Dawn L. DeMeo, Jennifer G. Dy, Edwin K. Silverman, Peter J. Castaldi, James Crapo, Edwin Silverman, Barry Make, Elizabeth Regan, Terri Beaty, Nan Laird, Christoph Lange, Stephanie Santorico, John Hokanson, Dawn DeMeo, Nadia Hansel, Craig Hersh, Peter Castaldi, Merry-Lynn McDonald, Emily Wan, Megan Hardin, Jacqueline Hetmanski, Margaret Parker, Marilyn Foreman, Brian Hobbs, Robert Busch, Dandi Qiao, Eitan Halper-Stromberg, Ferdouse Begum, Sungho Won, Sharon Lutz, David A. Lynch, Harvey O. Coxson, MeiLan K. Han, Eric A. Hoffman, Stephen Humphries, Francine L. Jacobson, Philip F. Judy, Ella A. Kazerooni, John D. Newell, James C. Ross, Raul José Estépar, Berend C. Stoel, Juerg Tschirren, Eva van Rikxoort, Bram van Ginneken, Carla G. Wilson, Mustafa Al Qaisi, Teresa Gray, Alex Kluiber, Tanya Mann, Jered Sieren, Douglas Stinson, Joyce Schroeder, Edwin Van Beek, Robert Jensen, Douglas Everett, Anna Faino, Matt Strand, Carla Wilson, John E. Hokanson, Gregory Kinney, Kendra Young, Katherine Pratte, Lindsey Duca, Jeffrey L. Curtis, Carlos H. Martinez, Perry G. Pernicano, Nicola Hanania, Philip Alapat, Venkata Bandi, Mustafa Atik, Aladin Boriek, Kalpatha Guntupalli, Elizabeth Guy, Amit Parulekar, Arun Nachiappan, Francine Jacobson, R. Graham Barr, Byron Thomashow, John Austin, Belinda D’Souza, Gregory D.N. Pearson, Anna Rozenshtein, Neil MacIntyre, Lacey Washington, H. Page McAdams, Charlene McEvoy, Joseph Tashjian, Robert Wise, Robert Brown, Karen Horton, Nirupama Putcha, Richard Casaburi, Alessandra Adami, Janos Porszasz, Hans Fischer, Matthew Budoff, Harry Rossiter, Amir Sharafkhaneh, Charlie Lan, Christine Wendt, Brian Bell, Gloria Westney, Eugene Berkowitz, Russell Bowler, David Lynch, Richard Rosiello, David Pace, Gerard Criner, David Ciccolella, Francis Cordova, Chandra Dass, Gilbert D’Alonzo, Parag Desai, Michael Jacobs, Steven Kelsen, Victor Kim, A. James Mamary, Nathaniel Marchetti, Aditi Satti, Kartik Shenoy, Robert M. Steiner, Alex Swift, Irene Swift, Maria Elena Vega-Sanchez, Mark Dransfield, William Bailey, J. Michael Wells, Surya Bhatt, Hrudaya Nath, Joe Ramsdell, Paul Friedman, Xavier Soler, Andrew Yen, Alejandro Cornellas, John Newell, Brad Thompson, MeiLan Han, Ella Kazerooni, Carlos Martinez, Joanne Billings, Tadashi Allen, Frank Sciurba, Divay Chandra, Joel Weissfeld, Carl Fuhrman, Jessica Bon, Antonio Anzueto, Sandra Adams, Diego Maselli-Caceres, and Mario E. Ruiz
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Male ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Pathology ,Genome-wide association study ,Comorbidity ,Critical Care and Intensive Care Medicine ,Severity of Illness Index ,Gastroenterology ,03 medical and health sciences ,FEV1/FVC ratio ,0302 clinical medicine ,Forced Expiratory Volume ,Internal medicine ,medicine ,Humans ,COPD ,Distribution (pharmacology) ,030212 general & internal medicine ,Aged ,business.industry ,Middle Aged ,respiratory system ,medicine.disease ,respiratory tract diseases ,Pulmonary Emphysema ,030228 respiratory system ,Genetic epidemiology ,Radiological weapon ,Cohort ,Disease Progression ,Inflammatory diseases Radboud Institute for Health Sciences [Radboudumc 5] ,Female ,Metabolic syndrome ,Tomography, X-Ray Computed ,Cardiology and Cardiovascular Medicine ,business ,Rare cancers Radboud Institute for Health Sciences [Radboudumc 9] - Abstract
Contains fulltext : 194255.pdf (Publisher’s version ) (Open Access) BACKGROUND: Emphysema has considerable variability in its regional distribution. Craniocaudal emphysema distribution is an important predictor of the response to lung volume reduction. However, there is little consensus regarding how to define upper lobe-predominant and lower lobe-predominant emphysema subtypes. Consequently, the clinical and genetic associations with these subtypes are poorly characterized. METHODS: We sought to identify subgroups characterized by upper-lobe or lower-lobe emphysema predominance and comparable amounts of total emphysema by analyzing data from 9,210 smokers without alpha-1-antitrypsin deficiency in the Genetic Epidemiology of COPD (COPDGene) cohort. CT densitometric emphysema was measured in each lung lobe. Random forest clustering was applied to lobar emphysema variables after regressing out the effects of total emphysema. Clusters were tested for association with clinical and imaging outcomes at baseline and at 5-year follow-up. Their associations with genetic variants were also compared. RESULTS: Three clusters were identified: minimal emphysema (n = 1,312), upper lobe-predominant emphysema (n = 905), and lower lobe-predominant emphysema (n = 796). Despite a similar amount of total emphysema, the lower-lobe group had more severe airflow obstruction at baseline and higher rates of metabolic syndrome compared with subjects with upper-lobe predominance. The group with upper-lobe predominance had greater 5-year progression of emphysema, gas trapping, and dyspnea. Differential associations with known COPD genetic risk variants were noted. CONCLUSIONS: Subgroups of smokers defined by upper-lobe or lower-lobe emphysema predominance exhibit different functional and radiological disease progression rates, and the upper-lobe predominant subtype shows evidence of association with known COPD genetic risk variants. These subgroups may be useful in the development of personalized treatments for COPD.
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- 2018
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31. Social Support and Weight Outcomes Over A Six-Month Weight Loss Intervention for Rural Older Adults
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Anna Kahkoska, Curtis Petersen, David Lynch, Hillary Spangler, Karen Fortuna, and John Batsis
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Abstracts ,Health (social science) ,Social Support, Social Connectedness, and Loneliness I ,Life-span and Life-course Studies ,AcademicSubjects/SOC02600 ,Health Professions (miscellaneous) ,Session 9455 (Poster) - Abstract
Rural older adults aged ≥65 years with obesity (body mass index (BMI) ≥30 kg/m2) showed an overall favorable response to a six-month, technology-based weight-management intervention. Our objective was to characterize how friends or family support for eating and exercise behaviors at baseline was associated with baseline weight and intervention response. We analyzed data from six subscales of the Social Support and Exercise Survey from 44 participants. Six-month weight change (≥5% of baseline) was considered clinically-significant. For each subscale, continuous and categorial outcomes were modeled with linear and logistic regression models, respectively, adjusted for sex and age. Crude associations of social support clusters, generated in an exploratory hierarchical cluster analysis, and weight outcomes were evaluated. The sample was 73.2 ± 3.9 years, 73% female, with mean baseline weight 97.8±16.3 kg and BMI 36.5±5.2 m/kg2. Family encouragement for healthy eating was negatively associated with baseline weight (β=-0.53, p=0.046). Social support scores were not associated with either six-month weight loss outcome (p>0.10). Two exploratory clusters were found: Cluster 1 (C1) (n=34) and Cluster 2 (C2) (n=9). C2 had higher mean social encouragement and discouragement, with lower mean baseline weight (90.0±11.7 vs 99.8±16.8kg C1; p=0.10). Weight loss was comparable (C1 4.6±3.7 versus C2 4.8±2.6kg; p=0.89), with no differences in clinically-significant weight loss (C1 45% versus C2 67%; p=0.46). These pilot data suggest that family member social support may act as collaterals to support clinical outcomes in the community. Evaluating different types within family support may elucidate associations with physiological outcomes in larger samples.
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- 2021
32. Computational Investigation of Known and Predicted Li Boracites Li4B7O12Cl and Li4B7S12Cl as Solid Electrolytes Having Possible Applications for Developing All Solid-state Li Ion Batteries
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Yan Li, Natalie Holzwarth, and David Lynch
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Materials science ,Chemical engineering ,All solid state ,Fast ion conductor ,Ion - Published
- 2021
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33. First Principles Simulations to Understand the Structural and Electrolyte Properties of Idealized Li7.5B10S18X1.5 (X = Cl, Br, I) Li Superionic Conductors Recently Identified in the Experimental Literature
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Yan Li, David Lynch, and Natalie Holzwarth
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Materials science ,Fast ion conductor ,Thermodynamics ,Electrolyte - Published
- 2021
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34. Reforming Initial Teacher Education: A Call for Innovation
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Tony Yeigh and David Lynch
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05 social sciences ,Pedagogy ,050301 education ,General Earth and Planetary Sciences ,Criticism ,0501 psychology and cognitive sciences ,Sociology ,0503 education ,050105 experimental psychology ,Teacher education ,Educational development - Published
- 2017
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35. THE FUTURE OF TEACHER EDUCATION: REFLECTIONS ON AN INNOVATION
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Richard J.H. Smith and David Lynch
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Education reform ,media_common.quotation_subject ,05 social sciences ,050301 education ,Bachelor ,Teacher education ,State (polity) ,Political science ,Redevelopment ,0502 economics and business ,Pedagogy ,Learning Management ,Comparative education ,0503 education ,050203 business & management ,Certificate in Education ,media_common - Abstract
This article is about teacher education reform. At the time of writing, teacher education (which is predominately the domain of universities in Australia), has undergone numerous critical reviews with little change effect. The teaching profession's struggles to cope with a changing world has been documented and an increasing push from Australian governments, at both the state and federal level for improved school outcomes are regular pieces in the national Australian press. A cadre of teacher education commentators call for a rethink on teacher education. This article showcases a disruptive model in teacher education and answers some of the ponderings around what teacher education could be and how it could be organised differently for the different world in which teachers now have to operate. More specifically, the article examines the Bachelor of Learning Management (BLM) which was developed at CentralQueenslandUniversityin2000andisstillinoperationtoday. TheBLMwas the first major revision and redevelopment of teacher education in Australia in twenty five years: this fact alone makes the BLM an interesting case study.
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- 2016
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36. Genetic Association and Risk Scores in a Chronic Obstructive Pulmonary Disease Meta-analysis of 16,707 Subjects
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Robert Busch, Brian D. Hobbs, Jin Zhou, Peter J. Castaldi, Michael J. McGeachie, Megan E. Hardin, Iwona Hawrylkiewicz, Pawel Sliwinski, Jae-Joon Yim, Woo Jin Kim, Deog K. Kim, Alvar Agusti, Barry J. Make, James D. Crapo, Peter M. Calverley, Claudio F. Donner, David A. Lomas, Emiel F. Wouters, Jørgen Vestbo, Ruth Tal-Singer, Per Bakke, Amund Gulsvik, Augusto A. Litonjua, David Sparrow, Peter D. Paré, Robert D. Levy, Stephen I. Rennard, Terri H. Beaty, John Hokanson, Edwin K. Silverman, Michael H. Cho, James Crapo, Edwin Silverman, Barry Make, Elizabeth Regan, Terri Beaty, Nan Laird, Christoph Lange, Michael Cho, Stephanie Santorico, Dawn DeMeo, Nadia Hansel, Craig Hersh, Peter Castaldi, Merry-Lynn McDonald, Emily Wan, Megan Hardin, Jacqueline Hetmanski, Margaret Parker, Marilyn Foreman, Brian Hobbs, Adel El-Bouiez, Dandi Qiao, Eitan Halper-Stromberg, Ferdouse Begum, Sungho Won, Sharon Lutz, David A. Lynch, Harvey O. Coxson, MeiLan K. Han, Eric A. Hoffman, Stephen Humphries, Francine L. Jacobson, Philip F. Judy, Ella A. Kazerooni, John D. Newell, James C. Ross, Raul San Jose Estepar, Berend C. Stoel, Juerg Tschirren, Eva van Rikxoort, Bram van Ginneken, George Washko, Carla G. Wilson, Mustafa Al Qaisi, Teresa Gray, Alex Kluiber, Tanya Mann, Jered Sieren, Douglas Stinson, Joyce Schroeder, Edwin Van Beek, Robert Jensen, Douglas Everett, Anna Faino, Matt Strand, Carla Wilson, John E. Hokanson, Gregory Kinney, Kendra Young, Katherine Pratte, Lindsey Duca, Jeffrey L. Curtis, Carlos H. Martinez, Perry G. Pernicano, Nicola Hanania, Philip Alapat, Venkata Bandi, Mustafa Atik, Aladin Boriek, Kalpatha Guntupalli, Elizabeth Guy, Amit Parulekar, Arun Nachiappan, Francine Jacobson, R. Graham Barr, Byron Thomashow, John Austin, Belinda D'Souza, Gregory D. N. Pearson, Anna Rozenshtein, Neil MacIntyre, Lacey Washington, H. Page McAdams, Charlene McEvoy, Joseph Tashjian, Robert Wise, Robert Brown, Karen Horton, Nirupama Putcha, Richard Casaburi, Alessandra Adami, Janos Porszasz, Hans Fischer, Matthew Budoff, Harry Rossiter, Amir Sharafkhaneh, Charlie Lan, Christine Wendt, Brian Bell, Gloria Westney, Eugene Berkowitz, Russell Bowler, David Lynch, Richard Rosiello, David Pace, Gerard Criner, David Ciccolella, Francis Cordova, Chandra Dass, Gilbert D'Alonzo, Parag Desai, Michael Jacobs, Steven Kelsen, Victor Kim, A. James Mamary, Nathaniel Marchetti, Aditi Satti, Kartik Shenoy, Robert M. Steiner, Alex Swift, Irene Swift, Maria Elena Vega-Sanchez, Mark Dransfield, William Bailey, J. Michael Wells, Surya Bhatt, Hrudaya Nath, Joe Ramsdell, Paul Friedman, Xavier Soler, Andrew Yen, Alejandro Comellas, John Newell, Brad Thompson, MeiLan Han, Ella Kazerooni, Carlos Martinez, Joanne Billings, Tadashi Allen, Frank Sciurba, Divay Chandra, Joel Weissfeld, Carl Fuhrman, Jessica Bon, Antonio Anzueto, Sandra Adams, Diego Maselli-Caceres, Mario E. Ruiz, Jaume Sauleda, Peter M. A. Calverley, Stephen Rennard, Y. Ivanov, K. Kostov, J. Bourbeau, M. Fitzgerald, P. Hernandez, K. Killian, R. Levy, F. Maltais, D. O'Donnell, J. Krepelka, J. Vestbo, E. Wouters, D. Quinn, P. Bakke, M. Kosnik, A. Agusti, J. Sauleda, Y. Feschenko, V. Gavrisyuk, L. Yashina, N. Monogarova, P. Calverley, D. Lomas, W. MacNee, D. Singh, J. Wedzicha, A. Anzueto, S. Braman, R. Casaburi, B. Celli, G. Giessel, M. Gotfried, G. Greenwald, N. Hanania, D. Mahler, B. Make, S. Rennard, C. Rochester, P. Scanlon, D. Schuller, F. Sciurba, A. Sharafkhaneh, T. Siler, E. Silverman, A. Wanner, R. Wise, R. ZuWallack, H. Coxson, C. Crim, L. Edwards, R. Tal Singer, J. Yates, B. Miller, R. Tal-Singer, J. Benditt, G. Criner, M. DeCamp, P. Diaz, M. Ginsburg, L. Kaiser, M. Katz, M. Krasna, N. MacIntyre, R. McKenna, F. Martinez, Z. Mosenifar, J. Reilly, A. Ries, J. Utz, RS: NUTRIM - R3 - Respiratory & Age-related Health, Pulmonologie, MUMC+: MA Longziekten (3), and RS: NUTRIM - R3 - Chronic inflammatory disease and wasting
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0301 basic medicine ,Male ,Clinical Biochemistry ,EMPHYSEMA ,SUSCEPTIBILITY ,AIR-FLOW OBSTRUCTION ,Pulmonary Disease, Chronic Obstructive ,Risk Factors ,Medicine ,EPIDEMIOLOGY ,Genetic epidemiology ,Original Research ,COPD ,COMPLEX DISEASE ,RECLASSIFICATION ,Chronic obstructive pulmonary disease ,Middle Aged ,Genetic risk score ,Respiratory Function Tests ,LUNG-FUNCTION ,Genetic risk factors ,alpha-1 antitrypsin ,Meta-analysis ,Female ,SMOKING ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,genetic epidemiology ,Pulmonary disease ,Single-nucleotide polymorphism ,genetic risk score ,chronic obstructive pulmonary disease ,03 medical and health sciences ,Internal medicine ,Genetic variation ,genetic risk factors ,Humans ,Genetic Predisposition to Disease ,GENOME-WIDE ASSOCIATION ,Molecular Biology ,Genotyping ,Genetic association ,Aged ,business.industry ,Cell Biology ,Heritability ,medicine.disease ,respiratory tract diseases ,030104 developmental biology ,Physical therapy ,business ,Genome-Wide Association Study - Abstract
The heritability of chronic obstructive pulmonary disease (COPD) cannot be fully explained by recognized genetic risk factors identified as achieving genome-wide significance. In addition, the combined contribution of genetic variation to COPD risk has not been fully explored. We sought to determine: (1) whether studies of variants from previous studies of COPD or lung function in a larger sample could identify additional associated variants, particularly for severe COPD; and (2) the impact of genetic risk scores on COPD. We genotyped 3,346 single-nucleotide polymorphisms (SNPs) in 2,588 cases (1,803 severe COPD) and 1,782 control subjects from four cohorts, and performed association testing with COPD, combining these results with existing genotyping data from 6,633 cases (3,497 severe COPD) and 5,704 control subjects. In addition, we developed genetic risk scores from SNPs associated with lung function and COPD and tested their discriminatory power for COPD-related measures. We identified significant associations between SNPs near PPIC (P = 1.28 X 10(-8)) and PPP4R4/SERPINA1 (P = 1.01 X 10(-8)) and severe COPD; the latter association may be driven by recognized variants in SERPINA1. Genetic risk scores based on SNPs previously associated with COPD and lung function had a modest ability to discriminate COPD (area under the curve, similar to 0.6), and accounted for a mean 0.9-1.9% lower forced expiratory volume in 1 second percent predicted for each additional risk allele. In a large genetic association analysis, we identified associations with severe COPD near PPIC and SERPINA1. A risk score based on combining genetic variants had modest, but significant, effects on risk of COPD and lung function.
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- 2017
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37. Reducing household water consumption: a social marketing approach
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Julian Lowe, David Lynch, and Ben Lowe
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Marketing ,Public economics ,Strategy and Management ,Rationing ,Theory of planned behavior ,Context (language use) ,Sample (statistics) ,HF5415 ,Social marketing ,Agricultural marketing ,Sustainability ,Economics ,health care economics and organizations ,Water use - Abstract
There is increasing pressure for society to move towards more sustainable use of its resources, and calls in the literature have been made to reassess marketing’s role in achieving such goals. This research examines how key behavioural factors influence household water use, in the context of a social marketing programme to reduce household water consumption. A model of the key drivers of household water consumption is developed and tested using a sample of 909 households in a regional city in Australia. The findings from this study support the model developed and show that in the absence of price as a rationing mechanism, the social marketing programme significantly reduces household water consumption. \ud \ud Statement of contribution: This is the first study to develop a comprehensive and empirically tested model of the non-price drivers of household water consumption, within the context of a social marketing intervention. The findings make a contribution to the field of consumer behaviour and social marketing by illustrating key behavioural drivers of water consumption. Consequently the study also shows how marketers can assist in preserving essential goods and services such as water.
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- 2014
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38. The role and application of social marketing in managing water consumption: a case study
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Ben Lowe, David Lynch, and Julian Lowe
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Marketing ,Economics and Econometrics ,Resource (biology) ,Public economics ,Strategy and Management ,Field (Bourdieu) ,Subsidy ,Social marketing ,Water consumption ,Water conservation ,Relevance (law) ,Sustainable consumption ,Business - Abstract
Water shortages are an increasingly significant social and economic issue in many countries. Increasing the supply of water is one solution (e.g. desalination plants, new dams), but such measures are expensive. Using price to manage household water demand may be viewed as socially unequitable and politically contentious. Social marketing campaigns, where voluntary behaviour change is the goal, provide the potential to foster sustainable consumption of an increasingly scarce yet essential resource. This paper details a case study of successful water demand management in a drought affected region of South-Eastern Australia. In this region, water consumption was reduced to more sustainable levels through a targeted and successful social marketing campaign. This case is of significant relevance to the field of Social Marketing where there are increasing calls for research into environmental issues in general and water consumption in particular (Kotler, 2011). The extant research literature and this case study are integrated to form several propositions about household water consumption behaviour. Consequently, this paper contributes to the literature by providing a conceptualisation of how residents respond to water conservation related social marketing campaigns. Key issues include the potential for reciprocal behaviour by consumers when a water authority is perceived to manage the water problem effectively, and linking behaviour change through structural approaches (e.g. subsidies and restrictions) and voluntarist approaches (e.g. attitudinal change). Copyright © 2013 John Wiley & Sons, Ltd.
- Published
- 2013
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39. Tuberous Sclerosis Complex Surveillance and Management: Recommendations of the 2012 International Tuberous Sclerosis Complex Consensus Conference
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Darcy A. Krueger, Hope Northrup, Steven Roberds, Katie Smith, Julian Sampson, Bruce Korf, David J. Kwiatkowski, David Mowat, Mark Nellist, Sue Povey, Petrus de Vries, Anna Byars, David Dunn, Kevin Ess, Dena Hook, Anna Jansen, Bryan King, Mustafa Sahin, Vicky Whittemore, Elizabeth Thiele, E. Martina Bebin, Harry T. Chugani, Peter Crino, Paolo Curatolo, Greg Holmes, Rima Nabbout, Finbar O'Callaghan, James Wheless, Joyce Wu, Thomas N. Darling, Edward W. Cowen, Elizabeth Gosnell, Adelaide Hebert, Greg Mlynarczyk, Keyomaurs Soltani, Joyce Teng, Mari Wataya-Kaneda, Patricia M. Witman, Chris Kingswood, John Bissler, Klemens Budde, John Hulbert, Lisa Guay-Woodford, Matthias Sauter, Bernard Zonneberg, Sergiusz Jóźwiak, Ute Bartels, Moncef Berhouma, David Neal Franz, Mary Kay Koenig, E. Steve Roach, Jonathan Roth, Henry Wang, Howard Weiner, Francis X. McCormack, Khalid Almoosa, Alan Brody, Charles Burger, Vincent Cottin, Geraldine Finlay, Jennifer Glass, Elizabeth Petri Henske, Simon Johnson, Robert Kotloff, David Lynch, Joel Moss, Karen Smith, Jay Rhu, Angelo Taveira Da Silva, Lisa R. Young, Timothy Knilans, Robert Hinton, Ashwin Prakash, Robb Romp, Arun D. Singh, Ashish DebRoy, Pei-Lung Chen, Steven Sparagana, and Michael D. Frost
- Subjects
medicine.medical_specialty ,Internationality ,Clinical Neurology ,tuberous sclerosis ,Disease ,Subspecialty ,Scientific evidence ,Tuberous sclerosis ,Developmental Neuroscience ,medicine ,Humans ,Pediatrics, Perinatology, and Child Health ,treatment ,Subependymal giant cell astrocytoma ,business.industry ,Genetic disorder ,Consensus conference ,Disease Management ,food and beverages ,Guideline ,medicine.disease ,Neurology ,Population Surveillance ,Family medicine ,Practice Guidelines as Topic ,Pediatrics, Perinatology and Child Health ,surveillance ,Physical therapy ,Neurology (clinical) ,business ,guideline ,management - Abstract
BackgroundTuberous sclerosis complex is a genetic disorder affecting every organ system, but disease manifestations vary significantly among affected individuals. The diverse and varied presentations and progression can be life-threatening with significant impact on cost and quality of life. Current surveillance and management practices are highly variable among region and country, reflective of the fact that last consensus recommendations occurred in 1998 and an updated, comprehensive standard is lacking that incorporates the latest scientific evidence and current best clinical practices.MethodsThe 2012 International Tuberous Sclerosis Complex Consensus Group, comprising 79 specialists from 14 countries, was organized into 12 separate subcommittees, each led by a clinician with advanced expertise in tuberous sclerosis complex and the relevant medical subspecialty. Each subcommittee focused on a specific disease area with important clinical management implications and was charged with formulating key clinical questions to address within its focus area, reviewing relevant literature, evaluating the strength of data, and providing a recommendation accordingly.ResultsThe updated consensus recommendations for clinical surveillance and management in tuberous sclerosis complex are summarized here. The recommendations are relevant to the entire lifespan of the patient, from infancy to adulthood, including both individuals where the diagnosis is newly made as well as individuals where the diagnosis already is established.ConclusionsThe 2012 International Tuberous Sclerosis Complex Consensus Recommendations provide an evidence-based, standardized approach for optimal clinical care provided for individuals with tuberous sclerosis complex.
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- 2013
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40. Tuberous Sclerosis Complex Diagnostic Criteria Update: Recommendations of the 2012 International Tuberous Sclerosis Complex Consensus Conference
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Hope Northrup, Darcy A. Krueger, Steven Roberds, Katie Smith, Julian Sampson, Bruce Korf, David J. Kwiatkowski, David Mowat, Mark Nellist, Sue Povey, Petrus de Vries, Anna Byars, David Dunn, Kevin Ess, Dena Hook, Anna Jansen, Bryan King, Mustafa Sahin, Vicky Whittemore, Elizabeth Thiele, E. Martina Bebin, Harry T. Chugani, Peter Crino, Paolo Curatolo, Greg Holmes, Rima Nabbout, Finbar O'Callaghan, James Wheless, Joyce Wu, Thomas N. Darling, Edward W. Cowen, Elizabeth Gosnell, Adelaide Hebert, Greg Mlynarczyk, Keyomaurs Soltani, Joyce Teng, Mari Wataya-Kaneda, Patricia M. Witman, Chris Kingswood, John Bissler, Klemens Budde, John Hulbert, Lisa Guay-Woodford, Matthias Sauter, Bernard Zonneberg, Sergiusz Jóźwiak, Ute Bartels, Moncef Berhouma, David Neal Franz, Mary Kay Koenig, E. Steve Roach, Jonathan Roth, Henry Wang, Howard Weiner, Francis X. McCormack, Khalid Almoosa, Alan Brody, Charles Burger, Vincent Cottin, Geraldine Finlay, Jennifer Glass, Elizabeth Petri Henske, Simon Johnson, Robert Kotloff, David Lynch, Joel Moss, Karen Smith, Jay Rhu, Angelo Taveira Da Silva, Lisa R. Young, Timothy Knilans, Robert Hinton, Ashwin Prakash, Robb Romp, Arun D. Singh, Ashish DebRoy, Pei-Lung Chen, Steven Sparagana, and Michael D. Frost
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medicine.medical_specialty ,clinical features ,Clinical Neurology ,Disease ,Subspecialty ,Diagnosis, Differential ,Tuberous sclerosis ,Developmental Neuroscience ,Tuberous Sclerosis ,medicine ,Humans ,Genetic Testing ,Pediatrics, Perinatology, and Child Health ,Intensive care medicine ,Genetic testing ,Subependymal giant cell astrocytoma ,medicine.diagnostic_test ,business.industry ,food and beverages ,medicine.disease ,medicine.anatomical_structure ,Neurology ,diagnostic criteria ,Practice Guidelines as Topic ,Pediatrics, Perinatology and Child Health ,Physical therapy ,Neurology (clinical) ,TSC1 ,Differential diagnosis ,TSC2 ,business - Abstract
BACKGROUND: Tuberous sclerosis complex is highly variable in clinical presentation and findings. Disease manifestations continue to develop over the lifetime of an affected individual. Accurate diagnosis is fundamental to implementation of appropriate medical surveillance and treatment. Although significant advances have been made in the past 15 years in the understanding and treatment of tuberous sclerosis complex, current clinical diagnostic criteria have not been critically evaluated or updated since the last clinical consensus conference in 1998. METHODS: The 2012 International Tuberous Sclerosis Complex Consensus Group, comprising 79 specialists from 14 countries, was organized into 12 subcommittees, each led by a clinician with advanced expertise in tuberous sclerosis complex and the relevant medical subspecialty. Each subcommittee focused on a specific disease area with important diagnostic implications and was charged with reviewing prevalence and specificity of diseaseassociated clinical findings and their impact on suspecting and confirming the diagnosis of tuberous sclerosis complex. RESULTS: Clinical features of tuberous sclerosis complex continue to be a principal means of diagnosis. Key changes compared with 1998 criteria are the new inclusion of genetic testing results and reducing diagnostic classes from three (possible, probable, and definite) to two (possible, definite). Additional minor changes to specific criterion were made for additional clarification and simplification. CONCLUSIONS: The 2012 International Tuberous Sclerosis Complex Diagnostic Criteria provide current, updated means using best available evidence to establish diagnosis of tuberous sclerosis complex in affected individuals.
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- 2013
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41. A Wine-And-Dine Playbook
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David, Lynch
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Thanksgiving Day -- Planning ,Wine -- Purchasing ,Entertaining -- Planning ,Company business planning ,Food/cooking/nutrition - Abstract
Byline: by DAVID LYNCH A Wine-and-Dine Playbook There's no such thing as a perfect Thanksgiving wine. But there is such a thing as a perfect Thanksgiving wine strategy 1 BE [...]
- Published
- 2014
42. ‘Quantitative CT of pulmonary fibrosis’
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David Lynch
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Pathology ,medicine.medical_specialty ,business.industry ,Pulmonary fibrosis ,medicine ,General Medicine ,medicine.disease ,business - Published
- 2016
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43. Campylobacter concisus utilizes blood but not short chain fatty acids despite showing associations with Firmicutes taxa
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Mahmoud M. Ruzayqat, Daniel A. Lemberg, Nadeem O. Kaakoush, Donald S. Thomas, Andrew S. Day, Steven T. Leach, Hazel M. Mitchell, and David Lynch
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0301 basic medicine ,Firmicutes ,030106 microbiology ,Campylobacter concisus ,Disease ,Microbiology ,Bacterial Adhesion ,Pathogenesis ,03 medical and health sciences ,Crohn Disease ,Campylobacter Infections ,Upper gastrointestinal ,Humans ,Cells, Cultured ,Faecalibacterium ,Clostridiales ,biology ,Lachnospiraceae ,Campylobacter ,biology.organism_classification ,Fatty Acids, Volatile ,Gastrointestinal Tract ,Blood ,Upper tract ,Bacteria - Abstract
Campylobacter concisus is a member of the oral microbiota that has been associated with the development of inflammatory bowel diseases. However, the role of the bacterium in disease aetiology remains poorly understood. Here, we examine optimal conditions for the growth of C. concisus, and the pathogenic potential of this bacterium in human gastrointestinal cells from the upper tract. Further, the presence of C. concisus in the lower tract of Crohn's disease (CD) patients undergoing therapy is observed, and the associations of C. concisus with the abundance of other microbial taxa and compounds they produce are evaluated. C. concisus strains had the ability to tolerate moderate levels of acidity, adhere to and invade esophageal and gastric cells; however, these properties did not correlate with their pathogenic potential in intestinal cells. The presence of the bacterium in the lower gut of CD patients was associated with an increased relative abundance of Faecalibacterium and Lachnospiraceae incertae sedis. Short chain fatty acids that can be produced by these microbial species did not appear to be responsible for this association. However, we identified genetic similarity between C. concisus and Firmicutes, specifically within aspartate and glutamate racemases. The potential pathogenesis of C. concisus in the upper gastrointestinal tract, and the responsiveness of the bacterium to therapy in a subset of CD patients warrant further investigation into whether this bacterium has a causal role in disease or its presence is incidental.
- Published
- 2016
44. Idiopathic Interstitial Pneumonia
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Kevin R. Flaherty, Adin-Cristian Andrei, Talmadge E. King, Ganesh Raghu, Thomas V. Colby, Athol Wells, Nadir Bassily, Kevin Brown, Roland du Bois, Andrew Flint, Steven E. Gay, Barry H. Gross, Ella A. Kazerooni, Robert Knapp, Edmund Louvar, David Lynch, Andrew G. Nicholson, John Quick, Victor J. Thannickal, William D. Travis, James Vyskocil, Frazer A. Wadenstorer, Jeffrey Wilt, Galen B. Toews, Susan Murray, and Fernando J. Martinez
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Pulmonary and Respiratory Medicine ,Academic Medical Centers ,medicine.medical_specialty ,Retrospective review ,business.industry ,MEDLINE ,Lung biopsy ,Prognosis ,Critical Care and Intensive Care Medicine ,medicine.disease ,Interstitial pneumonitis ,Community Medicine ,Usual interstitial pneumonia ,Lung disease ,Physicians ,Intensive care ,Family medicine ,F. Interstitial Lung Disease ,medicine ,Humans ,Lung Diseases, Interstitial ,Intensive care medicine ,business ,Idiopathic interstitial pneumonia - Abstract
Treatment and prognoses of diffuse parenchymal lung diseases (DPLDs) varies by diagnosis. Obtaining a uniform diagnosis among observers is difficult.Evaluate diagnostic agreement between academic and community-based physicians for patients with DPLDs, and determine if an interactive approach between clinicians, radiologists, and pathologists improved diagnostic agreement in community and academic centers.Retrospective review of 39 patients with DPLD. A total of 19 participants reviewed cases at 2 community locations and 1 academic location. Information from the history, physical examination, pulmonary function testing, high-resolution computed tomography, and surgical lung biopsy was collected. Data were presented in the same sequential fashion to three groups of physicians on separate days.Each observer's diagnosis was coded into one of eight categories. A kappa statistic allowing for multiple raters was used to assess agreement in diagnosis. Interactions between clinicians, radiologists, and pathologists improved interobserver agreement at both community and academic sites; however, final agreement was better within academic centers (kappa = 0.55-0.71) than within community centers (kappa = 0.32-0.44). Clinically significant disagreement was present between academic and community-based physicians (kappa = 0.11-0.56). Community physicians were more likely to assign a final diagnosis of idiopathic pulmonary fibrosis compared with academic physicians.Significant disagreement exists in the diagnosis of DPLD between physicians based in communities compared with those in academic centers. Wherever possible, patients should be referred to centers with expertise in diffuse parenchymal lung disorders to help clarify the diagnosis and provide suggestions regarding treatment options.
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- 2007
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45. Ecoliteracy and Pedagogical Praxis in the Multidisciplinary University Greenhouse toward the Food Security Strengthening
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Lira, Citlali Aguilera, Steinicke, David Lynch, and Garcia, Andrea León
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Farming eco-technologies ,food security ,multidisciplinary ,pedagogical praxis - Abstract
One of the challenges that higher education faces is to find how to approach the sustainability in an inclusive way to the student within all the different academic areas, how to move the sustainable development from the abstract field to the operational field. This research comes from the ecoliteracy and the pedagogical praxis as tools for rebuilding the teaching processes inside of universities. The purpose is to determine and describe which are the factors involved in the process of learning particularly in the Greenhouse-School Siembra UV. In the Greenhouse-School Siembra UV, of the University of Veracruz, are cultivated vegetables, medicinal plants and small cornfields under the usage of eco-technologies such as hydroponics, Wickingbed and Hugelkultur, which main purpose is the saving of space, labor and natural resources, as well as function as agricultural production alternatives in the urban and periurban zones. The sample was formed with students from different academic areas and who are actively involved in the greenhouse, as well as institutes from the University of Veracruz and governmental and nongovernmental departments. This project comes from a pedagogic praxis approach, from filling the needs that the different professional profiles of the university students have. All this with the purpose of generate a pragmatic dialogue with the sustainability. It also comes from the necessity to understand the factors that intervene in the students' praxis. In this manner is how the students are the fundamental unit in the sphere of sustainability. As a result, it is observed that those University of Veracruz students who are involved in the Greenhouse-school, Siembra UV, have enriched in different levels the sense of urban and periurban agriculture because of the diverse academic approaches they have and the interaction between them. It is concluded that the ecotechnologies act as fundamental tools for ecoliteracy in society, where it is strengthen the nutritional and food security from a sustainable development approach., {"references":["Runge Peña, Andrés Klaus; Muñoz Gaviria, Diego Alejandro (2012).\n\"Pedagogía y praxis (práctica educativa o educación. De nuevo: una\ndiferencia necesaria\". In Latinoamerican magazine of Educative Studies\n(Colombia), vol. 8, no. 2, July to December, Manizales, Colombia:\nUniversidad de Caldas, pp. 75-96.G.","Capra Fritjob (1997) The web of life: a new scientific understanding of\nliving systemes, Edit. Anchor W.-K. Chen, Linear Networks and Systems\n(Book style). Belmont, CA: Wadsworth, 1993, pp. 123–135.","De Alba, A. y Viesca, M., (Coords.) 1987. Educación Ambiental y\nEscuela Primaria en México. México: Secretaría de Desarrollo Urbano\ny Ecología (SEDUE).","González-Gaudiano, E., Andrade P., Ruiz, A., y Morelos, S., 1986,\nLineamientos Conceptuales y Metodológicos de la Educación Ambiental\nNo Formal. Dirección General de Promoción Ambiental y Participación\nComunitaria, México: Subsecretaría de Ecología.","Leff, E., 2004, Saber ambiental, sustentabilidad, racionalidad,\ncomplejidad, poder, siglo XXI, PNUMA, Buenos Aires, Argentina.H.","Complexus. 2004. Conclusiones del \"Foro de discusión en Educación\nSuperior y Desarrollo Sustentable\", organized by Consorcio Mexicano\nde Programas Ambientales Universitarios para el Desarrollo Sustentable\n(Complexus), León, Guanajuato.","Breitling, S. y Mogensen F., 1999, Action competence and\nenvironmental education. Cambridge J. Education 29(3):349-353.","Macedo, B., y Salgado, C., 2007, Educación ambiental y educación para\nel desarrollo sostenible en América Latina, OREALC/UNESCO\nSantiago (Oficina Regional de Educación de la UNESCO para América\nLatina y el Caribe).","Morín, E., 1999. Los siete saberes necesarios para la educación del\nfuturo. Ed. Magisterio. Bogotá. Colombia.\n[10] Moreneo, 1990 La estrategia aprendizaje en la educación formal:\nenseñar a pensar y sobre el pensar. Universidad Autónoma de\nBarcelona.\n[11] Nisbet, J. y Shucksmith,J., 1987: Estrategias de aprendizaje. Madrid:\nSantillana/Aula XXI.\n[12] Borroto, M.; Gutiérrez, I.; Talabera, B., Quesada, M.; Nuñez, A.,\nRodríguez, l. A.; 2011, Estrategia para la Educación Ambiental en\ncomunidades cubanas, Electronic magazine of environment 10:1-12.\n[13] Ortiz, M., J., Fuentes, G., A. y Masera, C., O., 2012, En búsqueda de\nalternativas tecnológicas para la solución de problemas socioecológicos,\nBoletín de la UNAM, Campus Morelia No. 36.\n[14] Turner, J., 1972, Freedom to Build, dweller control of the housing\nprocess. New York: Macmillan."]}
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- 2015
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46. Sociality and electricity in the United Kingdom : The influence of household dynamics on everyday consumption
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Klara Anna Capova, Harriet Bulkeley, Ellis Judson, David Lynch, Sandra Bell, and Gareth Powells
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Consumption (economics) ,Labour economics ,Public economics ,Renewable Energy, Sustainability and the Environment ,business.industry ,Energy Engineering and Power Technology ,Energy consumption ,Consumption patterns ,UK ,Fuel Technology ,Nuclear Energy and Engineering ,Electricity ,Dynamics (music) ,Economics ,Energy practices ,business ,Social Sciences (miscellaneous) ,Sociality - Abstract
Our paper investigates household practices that use electricity, their relation to systems of provision and the enactment of domestic sociality. The results of this research conducted in the UK shed light on puzzling variations in electricity consumption across households posed by previous research. We argue for the need to attend to how household socialites influence and are influenced by electrical services and trace the links between these dynamics and the effects of wider cultural and socio-economic forces.
- Published
- 2015
47. Cystic Lung Diseases: Algorithmic Approach
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Suhail, Raoof, Praveen, Bondalapati, Ravikanth, Vydyula, Jay H, Ryu, Nishant, Gupta, Sabiha, Raoof, Jeff, Galvin, Mark J, Rosen, David, Lynch, William, Travis, Sanjeev, Mehta, Richard, Lazzaro, and David, Naidich
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Lung Diseases ,Lung Neoplasms ,Papilloma ,Cysts ,Biopsy ,Pneumonia, Pneumocystis ,Bronchial Neoplasms ,Amyloidosis ,Special Features ,respiratory tract diseases ,Bronchiectasis ,Birt-Hogg-Dube Syndrome ,Diagnosis, Differential ,Histiocytosis, Langerhans-Cell ,Pulmonary Emphysema ,Humans ,Tracheal Neoplasms ,Lung Diseases, Interstitial ,Tomography, X-Ray Computed ,Lung ,Algorithms - Abstract
Cysts are commonly seen on CT scans of the lungs, and diagnosis can be challenging. Clinical and radiographic features combined with a multidisciplinary approach may help differentiate among various disease entities, allowing correct diagnosis. It is important to distinguish cysts from cavities because they each have distinct etiologies and associated clinical disorders. Conditions such as emphysema, and cystic bronchiectasis may also mimic cystic disease. A simplified classification of cysts is proposed. Cysts can occur in greater profusion in the subpleural areas, when they typically represent paraseptal emphysema, bullae, or honeycombing. Cysts that are present in the lung parenchyma but away from subpleural areas may be present without any other abnormalities on high-resolution CT scans. These are further categorized into solitary or multifocal/diffuse cysts. Solitary cysts may be incidentally discovered and may be an age related phenomenon or may be a remnant of prior trauma or infection. Multifocal/diffuse cysts can occur with lymphoid interstitial pneumonia, Birt-Hogg-Dubé syndrome, tracheobronchial papillomatosis, or primary and metastatic cancers. Multifocal/diffuse cysts may be associated with nodules (lymphoid interstitial pneumonia, light-chain deposition disease, amyloidosis, and Langerhans cell histiocytosis) or with ground-glass opacities (Pneumocystis jirovecii pneumonia and desquamative interstitial pneumonia). Using the results of the high-resolution CT scans as a starting point, and incorporating the patient’s clinical history, physical examination, and laboratory findings, is likely to narrow the differential diagnosis of cystic lesions considerably.
- Published
- 2015
48. The Idiopathic Pulmonary Fibrosis Clinical Research Network (IPFnet): diagnostic and adjudication processes
- Author
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Joao de, Andrade, Marvin, Schwarz, Harold R, Collard, Tedryl, Gentry-Bumpass, Thomas, Colby, David, Lynch, and Robert J, Kaner
- Subjects
Male ,Biopsy ,Phosphodiesterase 5 Inhibitors ,Idiopathic Pulmonary Fibrosis ,Sildenafil Citrate ,Diagnosis, Differential ,Treatment Outcome ,Double-Blind Method ,Azathioprine ,Humans ,Prednisone ,Drug Therapy, Combination ,Female ,Tomography, X-Ray Computed ,Glucocorticoids ,Immunosuppressive Agents ,Follow-Up Studies ,Retrospective Studies ,Original Research - Abstract
The National Heart, Lung, and Blood Institute-sponsored IPF Clinical Research Network (IPFnet) studies enrolled subjects with idiopathic pulmonary fibrosis (IPF) to evaluate drug therapies in treatment trials. An adjudication committee (AC) provided a structured review of cases in which there was uncertainty or disagreement regarding diagnosis or clinical event classification. This article describes the diagnosis and adjudication processes.The diagnostic process was based on review of clinical data and high-resolution CT scans with central review of lung biopsies when available. The AC worked closely with the data coordinating center to obtain clinical, radiologic, and histologic data and to communicate with the clinical centers. The AC used a multidisciplinary discussion model with four clinicians, one radiologist, and one pathologist to adjudicate diagnosis and outcome measures.The IPFnet trials screened 1,015 subjects; of these, 23 cases required review by the AC to establish eligibility. The most common diagnosis for exclusion was suspected chronic hypersensitivity pneumonitis. The AC reviewed 88 suspected acute exacerbations (AExs), 93 nonelective hospitalizations, and 16 cases of bleeding. Determination of AEx presented practical challenges to adjudicators, as necessary clinical data were often not collected, particularly when subjects were evaluated outside of the primary study site.The IPFnet diagnostic process was generally efficient, but a multidisciplinary adjudication committee was critical to assure correct phenotype for study enrollment. The AC was key in adjudicating all adverse outcomes in two IPFnet studies terminated early because of safety issues. Future clinical trials in IPF should consider logistical and cost issues as they incorporate AExs and hospitalizations as outcome measures.ClinicalTrials.gov; No.: NCT00517933, NCT00650091, NCT00957242; URL: www.clinicaltrials.gov.
- Published
- 2015
49. Load balancing in heterogeneous networks using an evolutionary algorithm
- Author
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Holger Claussen, Michael Fenton, David Lynch, Michael O'Neill, and Stepan Kucera
- Subjects
Computer science ,Distributed computing ,Scalability ,Cellular network ,Evolutionary algorithm ,Load balancing (computing) ,Heterogeneous network - Abstract
Grammatical Evolution (GE) is applied to the problem of load balancing in heterogeneous cellular network deployments (HetNets). HetNets are multi-tiered cellular networks for which load balancing is a scalable means to maximise network capacity, assuming similar traffic from all users. This paper describes a proof of concept study in which GE is used in a genetic algorithm-like way to evolve constants which represent cell power and selection bias in order to achieve load balancing in HetNets. A fitness metric is derived to achieve load balancing both locally in sectors and globally across tiers. Initial results show promise for GE as a heuristic for load balancing. This finding motivates a more sophisticated grammar to bring enhanced Inter-Cell Interference Coordination optimisation into an evolutionary framework.
- Published
- 2015
- Full Text
- View/download PDF
50. From biomass-rich residues into fuels and green chemicals via gasification and catalytic synthesis
- Author
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Stephane Marie-Rose, Jean-Michel Lavoie, David Lynch, and Estaban Chornet
- Subjects
Materials science ,Waste management ,Wood gas generator ,business.industry ,Fossil fuel ,Biomass ,chemistry.chemical_element ,Fraction (chemistry) ,Carbon sequestration ,Raw material ,chemistry ,Biofuel ,Bioenergy ,Environmental science ,Gas composition ,Char ,business ,Carbon ,Syngas - Abstract
Recycling carbon present in residual streams enhances sustainability and creates local wealth. Enerkem Inc. is a leading biomass gasification company headquartered in Montreal, Quebec. The approach Enerkem has been developing involves: identification of low cost residual streams as feedstock, sorting, biotreatment (anaerobic and/or aerobic) and preparation of an ultimate residue (RDF). The latter is a rather uniform material that can be fed, as a fluff, to a bubbling bed gasifier in a staged gasification to carry out, sequentially, the needed chemical reactions that result in high syngas yields. Process can be adjusted to reach desired gas composition for synthesis or electricity generation as well as gas conditioning to produce an ultraclean syngas. Products for such a process are: i) syngas with an appropriate range of H2/CO ratios, ii) CO2 (which is recovered), iii) solid char as a residue composed of the inorganic fraction of the raw material and some unconverted carbon that “coats” the inorganic matrices, and
- Published
- 2014
- Full Text
- View/download PDF
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