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https://www.readbyqxmd.com/read/28345057/chemical-imaging-of-fischer-tropsch-catalysts-under-operating-conditions
#1
Stephen W T Price, David J Martin, Aaron D Parsons, Wojciech A Sławiński, Antonios Vamvakeros, Stephen J Keylock, Andrew M Beale, J Frederick W Mosselmans
Although we often understand empirically what constitutes an active catalyst, there is still much to be understood fundamentally about how catalytic performance is influenced by formulation. Catalysts are often designed to have a microstructure and nanostructure that can influence performance but that is rarely considered when correlating structure with function. Fischer-Tropsch synthesis (FTS) is a well-known and potentially sustainable technology for converting synthetic natural gas ("syngas": CO + H2) into functional hydrocarbons, such as sulfur- and aromatic-free fuel and high-value wax products...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28335448/a-community-multi-omics-approach-towards-the-assessment-of-surface-water-quality-in-an-urban-river-system
#2
David J Beale, Avinash V Karpe, Warish Ahmed, Stephen Cook, Paul D Morrison, Christopher Staley, Michael J Sadowsky, Enzo A Palombo
A multi-omics approach was applied to an urban river system (the Brisbane River (BR), Queensland, Australia) in order to investigate surface water quality and characterize the bacterial population with respect to water contaminants. To do this, bacterial metagenomic amplicon-sequencing using Illumina next-generation sequencing (NGS) of the V5-V6 hypervariable regions of the 16S rRNA gene and untargeted community metabolomics using gas chromatography coupled with mass spectrometry (GC-MS) were utilized. The multi-omics data, in combination with fecal indicator bacteria (FIB) counts, trace metal concentrations (by inductively coupled plasma mass spectrometry (ICP-MS)) and in-situ water quality measurements collected from various locations along the BR were then used to assess the health of the river ecosystem...
March 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28328576/chronic-pain-patients-perspectives-of-medical-cannabis
#3
Brian J Piper, Monica L Beals, Alexander T Abess, Stephanie D Nichols, Maurice Martin, Catherine M Cobb, Rebecca M DeKeuster
Medical cannabis (MC) is employed for a variety of conditions including chronic pain. The goal of this report was to provide an in-depth qualitative exploration of patient perspectives on the strengths and limitations of MC. Members of MC dispensaries (N = 984) in New England including two-thirds with a history of chronic pain completed an online survey. In response to "How effective is medical cannabis in treating your symptoms or conditions?", with options of 0% "no relief" to 100% "complete relief", the average was 74...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28319614/biophysics-a-toehold-in-cell-surface-dynamics
#4
Paul A Beales
No abstract text is available yet for this article.
March 20, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28316007/talimogene-laherparepvec-for-treating-metastatic-melanoma-an-evidence-review-group-perspective-of-a-nice-single-technology-appraisal
#5
REVIEW
Nigel Fleeman, Adrian Bagust, Angela Boland, Sophie Beale, Marty Richardson, Ashma Krishan, Angela Stainthorpe, Ahmed Abdulla, Eleanor Kotas, Lindsay Banks, Miranda Payne
The National Institute for Health and Care Excellence (NICE) invited the manufacturer (Amgen) of talimogene laherparepvec (T-VEC) to submit clinical and cost-effectiveness evidence for previously untreated advanced (unresectable or metastatic) melanoma as part of the Institute's Single Technology Appraisal process. The Liverpool Reviews and Implementation Group (LRiG) at the University of Liverpool was commissioned to act as the Evidence Review Group (ERG). This article presents a summary of the company's submission of T-VEC, the ERG review and the resulting NICE guidance (TA410), issued in September 2016...
March 18, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28314069/factors-contributing-to-employment-patterns-after-liver-transplantation
#6
Eliza W Beal, Dmitry Tumin, Khalid Mumtaz, Michael Nau, Joseph D Tobias, Don Hayes, Kenneth Washburn, Sylvester M Black
BACKGROUND: Many liver transplant recipients return to work, but their patterns of employment are unclear. We examine patterns of employment 5 years after liver transplantation. METHODS: First-time liver transplant recipients ages 18-60 years transplanted from 2002-2009 and surviving at least 5 years were identified in the United Network for Organ Sharing registry. Recipient's post-transplant employment status was classified as (1) never employed; (2) returned to work within 2 years and remained employed (continuous employment); (3) returned to work within 2 years, but was subsequently unemployed (intermittent employment); or (4) returned to work ≥3 years post-transplant (delayed employment)...
March 17, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28303695/dynamic-contrast-enhanced-mri-perfusion-for-differentiating-between-melanoma-and-lung-cancer-brain-metastases
#7
Vaios Hatzoglou, Jamie Tisnado, Alpesh Mehta, Kyung K Peck, Mariza Daras, Antonio M Omuro, Kathryn Beal, Andrei I Holodny
Brain metastases originating from different primary sites overlap in appearance and are difficult to differentiate with conventional MRI. Dynamic contrast-enhanced (DCE)-MRI can assess tumor microvasculature and has demonstrated utility in characterizing primary brain tumors. Our aim was to evaluate the performance of plasma volume (Vp) and volume transfer coefficient (K(trans) ) derived from DCE-MRI in distinguishing between melanoma and nonsmall cell lung cancer (NSCLC) brain metastases. Forty-seven NSCLC and 23 melanoma brain metastases were retrospectively assessed with DCE-MRI...
March 17, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28302273/there-is-good-agreement-between-mr-enterography-and-bowel-ultrasound-with-regards-to-disease-location-and-activity-in-paediatric-inflammatory-bowel-disease
#8
J L Barber, J Maclachlan, K Planche, M Furman, D Crespi, N Bab, I Beal
AIM: To investigate concordance of bowel ultrasound and magnetic resonance enterography (MRE) in identifying active disease in children with inflammatory bowel disease. MATERIALS AND METHODS: The imaging of children with inflammatory bowel disease who had undergone bowel ultrasound and MRE within 30 days were retrospectively reviewed, from January 2009 to November 2015. Ultrasound was without oral contrast medium; MRI was conducted with patients unsedated with oral contrast medium and gadolinium...
March 14, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28301481/colec10-is-mutated-in-3mc-patients-and-regulates-early-craniofacial-development
#9
Mustafa M Munye, Anna Diaz-Font, Louise Ocaka, Maiken L Henriksen, Melissa Lees, Angela Brady, Dagan Jenkins, Jenny Morton, Soren W Hansen, Chiara Bacchelli, Philip L Beales, Victor Hernandez-Hernandez
3MC syndrome is an autosomal recessive heterogeneous disorder with features linked to developmental abnormalities. The main features include facial dysmorphism, craniosynostosis and cleft lip/palate; skeletal structures derived from cranial neural crest cells (cNCC). We previously reported that lectin complement pathway genes COLEC11 and MASP1/3 are mutated in 3MC syndrome patients. Here we define a new gene, COLEC10, also mutated in 3MC families and present novel mutations in COLEC11 and MASP1/3 genes in a further five families...
March 16, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28296810/activation-associated-accelerated-apoptosis-of-memory-b-cells-in-critically-ill-patients-with-sepsis
#10
Manu Shankar-Hari, David Fear, Paul Lavender, Tracey Mare, Richard Beale, Chad Swanson, Mervyn Singer, Jo Spencer
OBJECTIVE: Sepsis is life-threatening organ dysfunction due to dysregulated host responses to infection. Current knowledge of human B-cell alterations in sepsis is sparse. We tested the hypothesis that B-cell loss in sepsis involves distinct subpopulations of B cells and investigated mechanisms of B-cell depletion. DESIGN: Prospective cohort study. SETTING: Critical care units. PATIENTS: Adult sepsis patients without any documented immune comorbidity...
March 14, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28296645/extraction-of-respiratory-signals-from-the-electrocardiogram-and-photoplethysmogram-technical-and-physiological-determinants
#11
Peter H Charlton, Timothy Bonnici, Lionel Tarassenko, Jordi Alastruey, David Clifton, Richard Beale, Peter Watkinson
Breathing rate (BR) can be estimated by extracting respiratory signals from the electrocardiogram (ECG) or photoplethysmogram (PPG). The extracted respiratory signals may be influenced by several technical and physiological factors. In this study, our aim was to determine how technical and physiological factors influence the quality of respiratory signals. Using a variety of techniques 15 respiratory signals were extracted from the ECG, and 11 from PPG signals collected from 57 healthy subjects. The quality of each respiratory signal was assessed by calculating its correlation with a reference oral-nasal pressure respiratory signal using Pearson's correlation coefficient...
March 15, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28293063/evaluation-of-prognostic-and-predictive-significance-of-circulating-micrornas-in-ovarian-cancer-patients
#12
RANDOMIZED CONTROLLED TRIAL
Ann Rita Halvorsen, Gunnar Kristensen, Andy Embleton, Cybil Adusei, Maria Pilar Barretina-Ginesta, Philip Beale, Åslaug Helland
Ovarian cancer patients are recognized with poor prognosis. This study aimed to identify microRNAs in plasma for predicting response to treatment and outcome. We have investigated microRNAs in plasma from ovarian cancer patients enrolled in a large multicenter study (ICON7), investigating the effect of adding bevacizumab to standard chemotherapy in patients diagnosed with epithelial ovarian cancer. Patients with different histology, grade, and FIGO stages were included (n = 207) in this study. Screening of 754 unique microRNAs was performed in the discovery phase (n = 91) using TaqMan Low Density Arrays...
2017: Disease Markers
https://www.readbyqxmd.com/read/28285039/the-lawrence-d-dorr-surgical-techniques-technologies-award-differences-in-postoperative-outcomes-between-total-hip-arthroplasty-for-fracture-vs-osteoarthritis
#13
Charles D Qin, Mia M Helfrich, David W Fitz, Kevin D Hardt, Matthew D Beal, David W Manning
BACKGROUND: Hip fracture is an increasingly common expanded indication for total hip arthroplasty (THA) and warrants outcome analysis so as to best inform risk assessment models, public reporting of outcome, and value-based reimbursement schemes. METHODS: The National Surgical Quality Improvement Program data file from 2011 to 2014 was used to identify all patients undergoing THA via current procedural terminology code 27130. Propensity score matching in a 1:5 fashion was used to compare 2 cohorts: THA for osteoarthritis and THA for fracture...
February 6, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28284654/validation-of-a-web-based-curriculum-for-resident-education-in-orthopedic-surgery-j-surg-educ-2016-1060-65
#14
Barrett Boody, Patrick Johnston, Andrew Pugely, Daniel Miller, Jeffrey Geller, William Payne, James Boegener, Michael Schafer, Matthew Beal
No abstract text is available yet for this article.
March 8, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28268052/synthesis-of-native-like-crosslinked-duplex-rna-and-study-of-its-properties
#15
Kazumitsu Onizuka, Madoka E Hazemi, Justin M Thomas, Leanna R Monteleone, Ken Yamada, Shuhei Imoto, Peter A Beal, Fumi Nagatsugi
A variety of enzymes have been found to interact with double-stranded RNA (dsRNA) in order to carry out its functions. We have endeavored to prepare the covalently crosslinked native-like duplex RNA, which could be useful for biochemical studies and RNA nanotechnology. In this study, the interstrand covalently linked duplex RNA was formed by a crosslinking reaction between vinylpurine (VP) and the target cytosine or uracil in RNA. We measured melting temperatures and CD spectra to identify the properties of the VP crosslinked duplex RNA...
February 21, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28267626/bayesian-switching-factor-analysis-for-estimating-time-varying-functional-connectivity-in-fmri
#16
Jalil Taghia, Srikanth Ryali, Tianwen Chen, Kaustubh Supekar, Weidong Cai, Vinod Menon
There is growing interest in understanding the dynamical properties of functional interactions between distributed brain regions. However, robust estimation of temporal dynamics from functional magnetic resonance imaging (fMRI) data remains challenging due to limitations in extant multivariate methods for modeling time-varying functional interactions between multiple brain areas. Here, we develop a Bayesian generative model for fMRI time-series within the framework of hidden Markov models (HMMs). The model is a dynamic variant of the static factor analysis model (Ghahramani and Beal, 2000)...
March 3, 2017: NeuroImage
https://www.readbyqxmd.com/read/28267094/work-productivity-loss-in-young-workers-is-substantial-and-is-associated-with-spinal-pain-and-mental-ill-health-conditions
#17
Darren Beales, SuMon Kyaw-Myint, Anne Smith, Peter OʼSullivan, Glenn Pransky, Steven Linton, Jenny Job, Leon Straker
OBJECTIVE: The aim of this study was to estimate the effect of spinal pain and mental ill-health conditions on work productivity in 22-year-old workers. METHODS: A cross-sectional design using data from the Raine Study cohort (n = 867) including self-reported work productivity and self-report of health practitioner diagnosed medical conditions. RESULT: Mean (median, 25th-percentile, 75th-percentile) annualized cost of health-related absenteeism was $AUD1899 ($0, $0, $1738) per worker...
March 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28265415/metabolic-improvements-following-roux-en-y-surgery-assessed-by-solid-meal-test-in-subjects-with-short-duration-type-2-diabetes
#18
Sudha S Shankar, Lori A Mixson, Manu Chakravarthy, Robin Chisholm, Anthony J Acton, RoseMarie Jones, Samer G Mattar, Deborah L Miller, Lea Petry, Chan R Beals, S Aubrey Stoch, David E Kelley, Robert V Considine
BACKGROUND: Glucose homeostasis improves within days following Roux-en-Y gastric bypass (RYGB) surgery. The dynamic metabolic response to caloric intake following RYGB has been assessed using liquid mixed meal tolerance tests (MMTT). Few studies have evaluated the glycemic and hormonal response to a solid mixed meal in subjects with diabetes prior to, and within the first month following RYGB. METHODS: Seventeen women with type 2 diabetes of less than 5 years duration participated...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28237454/foster-care-is-associated-with-poor-mental-health-in-children
#19
Mary V Greiner, Sarah J Beal
No abstract text is available yet for this article.
March 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28230242/routine-port-site-excision-in-incidentally-discovered-gallbladder-cancer-is-not-associated-with-improved-survival-a-multi-institution-analysis-from-the-us-extrahepatic-biliary-malignancy-consortium
#20
Cecilia G Ethun, Lauren M Postlewait, Nina Le, Timothy M Pawlik, George Poultsides, Thuy Tran, Kamran Idrees, Chelsea A Isom, Ryan C Fields, Bradley A Krasnick, Sharon M Weber, Ahmed Salem, Robert C G Martin, Charles R Scoggins, Perry Shen, Harveshp D Mogal, Carl Schmidt, Eliza Beal, Ioannis Hatzaras, Rivfka Shenoy, Kenneth Cardona, Shishir K Maithel
BACKGROUND: Current data on the utility of port-site excision (PSE) during re-resection for incidentally discovered gallbladder cancer (IGBC) in the US are conflicting and limited to single-institution series. METHODS: All patients with IGBC who underwent curative re-resection at 10 institutions from 2000 to 2015 were included. Patients with and without PSE were compared. Primary outcome was overall survival (OS). RESULTS: Of 449 pts with GBC, 266 were incidentally discovered, of which 193(73%) underwent curative re-resection and had port-site data; 47 pts(24%) underwent PSE, 146(76%) did not...
February 23, 2017: Journal of Surgical Oncology
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