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https://www.readbyqxmd.com/read/28812995/optimizing-waveform-maximum-determination-for-specular-point-tracking-in-airborne-gnss-r
#1
Erwan Motte, Mehrez Zribi
Airborne GNSS-R campaigns are crucial to the understanding of signal interactions with the Earth's surface. As a consequence of the specific geometric configurations arising during measurements from aircraft, the reflected signals can be difficult to interpret under certain conditions like over strongly attenuating media such as forests, or when the reflected signal is contaminated by the direct signal. For these reasons, there are many cases where the reflectivity is overestimated, or a portion of the dataset has to be flagged as unusable...
August 16, 2017: Sensors
https://www.readbyqxmd.com/read/28812843/collaboration-between-researchers-and-knowledge-users-in-health-technology-assessment-a-qualitative-exploratory-study
#2
Mylène Tantchou Dipankui
BACKGROUND: Collaboration between researchers and knowledge users is increasingly promoted because it could enhance more evidence-based decision-making and practice. These complex relationships differ in form, in the particular goals they are trying to achieve, and in whom they bring together. Although much is understood about why partnerships form, relatively little is known about how collaboration works: how the collaborative process is shaped through the partners' interactions, especially in the field of health technology assessment (HTA)? This study aims at addressing this gap in the literature in the specific context of HTA...
December 16, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812833/evaluating-the-implementation-and-feasibility-of-a-web-based-tool-to-support-timely-identification-and-care-for-the-frail-population-in-primary-healthcare-settings
#3
Beverley Lawson, Tara Sampalli, Stephanie Wood, Grace Warner, Paige Moorhouse, Rick Gibson, Laurie Mallery, Fred Burge, Lisa G Bedford
BACKGROUND: Understanding and addressing the needs of frail persons is an emerging health priority for Nova Scotia and internationally. Primary healthcare (PHC) providers regularly encounter frail persons in their daily clinical work. However, routine identification and measurement of frailty is not standard practice and, in general, there is a lack of awareness about how to identify and respond to frailty. A web-based tool called the Frailty Portal was developed to aid in identifying, screening, and providing care for frail patients in PHC settings...
March 7, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812826/a-policy-analysis-on-the-proactive-prevention-of-chronic-disease-learnings-from-the-initial-implementation-of-integrated-measurement-for-early-detection-mido
#4
Roberto Tapia-Conyer, Rodrigo Saucedo-Martínez, Ricardo Mújica-Rosales, Héctor Gallardo-Rincón, Evan Lee, Craig Waugh, Lucía Guajardo, Braulio Torres-Beltrán, Úrsula Quijano-González, Mauricio López-Mendez, Elena Rose Atkinson
Mexico, like many low- and middle-income countries (LMICs), faces an epidemic of chronic non-communicable diseases (NCDs), specifically diabetes, hypertension, obesity, and lipid disorders. Many people with these NCDs may not be aware that they have a disease, pointing to the need for broader screening programs. The traditional prevention policy in Mexico was based on screening with a paper-based risk factor questionnaire. However, this was used to screen patients already seeking healthcare services at facilities, and screening goals were set as a function of the number of questionnaires applied, not number of individuals screened...
February 20, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812729/complex-modular-architecture-around-a-simple-toolkit-of-wing-pattern-genes
#5
Steven M Van Belleghem, Pasi Rastas, Alexie Papanicolaou, Simon H Martin, Carlos F Arias, Megan A Supple, Joseph J Hanly, James Mallet, James J Lewis, Heather M Hines, Mayte Ruiz, Camilo Salazar, Mauricio Linares, Gilson R P Moreira, Chris D Jiggins, Brian A Counterman, W Owen McMillan, Riccardo Papa
Identifying the genomic changes that control morphological variation and understanding how they generate diversity is a major goal of evolutionary biology. In Heliconius butterflies, a small number of genes control the development of diverse wing colour patterns. Here, we used full-genome sequencing of individuals across the Heliconius erato radiation and closely related species to characterize genomic variation associated with wing pattern diversity. We show that variation around colour pattern genes is highly modular, with narrow genomic intervals associated with specific differences in colour and pattern...
January 30, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812538/development-of-pathogenicity-predictors-specific-for-variants-that-do-not-comply-with-clinical-guidelines-for-the-use-of-computational-evidence
#6
Elena Álvarez de la Campa, Natàlia Padilla, Xavier de la Cruz
BACKGROUND: Strict guidelines delimit the use of computational information in the clinical setting, due to the still moderate accuracy of in silico tools. These guidelines indicate that several tools should always be used and that full coincidence between them is required if we want to consider their results as supporting evidence in medical decision processes. Application of this simple rule certainly decreases the error rate of in silico pathogenicity assignments. However, when predictors disagree this rule results in the rejection of potentially valuable information for a number of variants...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28812230/simulation-of-left-ventricular-dynamics-using-a-low-order-mathematical-model
#7
Michael J Moulton, Brian D Hong, Timothy W Secomb
The eventual goal of this study is to develop methods for estimating dynamic stresses in the left ventricle (LV) that could be used on-line in clinical settings, based on routinely available measurements. Toward this goal, a low-order theoretical model is presented, in which LV shape is represented using a small number of parameters, allowing rapid computational simulations of LV dynamics. The LV is represented as a thick-walled prolate spheroid containing helical muscle fibers with nonlinear passive and time-dependent active contractile properties...
August 15, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28811996/experimental-method-and-statistical-analysis-to-fit-tumor-growth-model-using-spect-ct-imaging-a-preclinical-study
#8
Ivan Hidrovo, Joyoni Dey, Megan E Chesal, Dmytro Shumilov, Narayan Bhusal, J Michael Mathis
BACKGROUND: Over the last decade, several theoretical tumor-models have been developed to describe tumor growth. Oncology imaging is performed using various modalities including computed tomography (CT), magnetic resonance imaging (MRI), single-photon emission computed tomography (SPECT) and fluorodeoxyglucose-positron emission tomography (FDG-PET). Our goal is to extract useful, otherwise hidden, quantitative biophysical parameters (such as growth-rate, tumor-necrotic-factor, etc.) from these serial images of tumors by fitting mathematical models to images...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28811705/colorectal-cancer-screening-an-updated-review-of-the-available-options
#9
REVIEW
Iyad A Issa, Malak Noureddine
Colorectal cancer (CRC) is a significant cause of morbidity and mortality worldwide. However, colon cancer incidence and mortality is declining over the past decade owing to adoption of effective screening programs. Nevertheless, in some parts of the world, CRC incidence and mortality remain on the rise, likely due to factors including "westernized" diet, lifestyle, and lack of health-care infrastructure and resources. Participation and adherence to different national screening programs remain obstacles limiting the achievement of screening goals...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811122/acute-kidney-injury-after-computed-tomography-a-meta-analysis
#10
REVIEW
Ryan D Aycock, Lauren M Westafer, Jennifer L Boxen, Nima Majlesi, Elizabeth M Schoenfeld, Raveendhara R Bannuru
STUDY OBJECTIVE: Computed tomography (CT) is an important imaging modality used in the diagnosis of a variety of disorders. Imaging quality may be improved if intravenous contrast is added, but there is a concern for potential renal injury. Our goal is to perform a meta-analysis to compare the risk of acute kidney injury, need for renal replacement, and total mortality after contrast-enhanced CT versus noncontrast CT. METHODS: We searched MEDLINE (PubMed), the Cochrane Library, CINAHL, Web of Science, ProQuest, and Academic Search Premier for relevant articles...
August 12, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28811110/characterizing-the-diagnosis-and-treatment-of-allergic-contact-dermatitis-to-2-octyl-cyanoacrylate-used-for-skin-closure-in-elective-orthopedic-surgery
#11
Brian P Chalmers, Heath P Melugin, Peter K Sculco, Jennifer J Schoch, Rafael J Sierra, Mark W Pagnano, Michael J Stuart, Michael J Taunton
BACKGROUND: While studies have shown that postoperative wound complications can predispose to deep infection following orthopedic surgery, the best form of skin closure has not been elucidated. Furthermore, the unique risks and benefits of each type of wound closure have not been studied. The goal of this study is to present the diagnosis and treatment of patients with allergic contact dermatitis (ACD) from 2-octyl cyanoacrylate, a skin adhesive commonly used in wound closure. METHODS: Twenty-nine patients with ACD to 2-octyl cyanoacrylate (Prineo, Ethicon, NJ) following elective orthopedic surgeries from 2013 to 2016 were retrospectively reviewed; this occurred in 29 of 6088 units of Prineo used at our institution, for an estimated incidence of 0...
July 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28810990/gait-and-functional-outcomes-for-young-active-males-with-traumatic-unilateral-transfemoral-limb-loss
#12
Caitlin E Mahon, Alison L Pruziner, Brad D Hendershot, Erik J Wolf, Benjamin J Darter, K Bo Foreman, Joseph B Webster
OBJECTIVE: Altered body structures that occur with the loss of a lower limb can impact mobility and quality of life. Specifically, biomechanical changes that result from wearing a prosthesis have been associated with an increased risk of falls or joint degeneration, as well as increased energy demands. While previous studies describing these outcomes are typically limited by number of outcome measures and/or small, diverse patient groups, recent military conflicts present a unique opportunity to collect outcomes from a relatively homogenous, active patient population with limb loss...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810958/multispecialty-synchronous-telehealth-utilization-and-patient-satisfaction-within-regional-health-command-europe-a-readiness-and-recapture-system-for-health
#13
Kirk H Waibel, Steven M Cain, Todd E Hall, Ronald S Keen
BACKGROUND: Telehealth implementation within the Military Healthcare System continues to advance toward the goal of a mature regional health platform; however, specialty-specific usage or patient satisfaction regarding synchronous or "real-time" telehealth at the regional military hospital level has not been described. METHODS: A retrospective review of synchronous telehealth encounters and patient satisfaction surveys from Landstuhl Regional Medical Center (LRMC) specialty clinics engaging in synchronous telehealth to regional Army Health Clinics (AHCs) during 2015 was conducted...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810700/a-single-mini-barcode-test-to-screen-for-australian-mammalian-predators-from-environmental-samples
#14
Elodie Modave, Anna J MacDonald, Stephen D Sarre
Identification of species from trace samples is now possible through the comparison of diagnostic DNA fragments against reference DNA sequence databases. DNA detection of animals from non-invasive samples, such as predator faeces (scats) that contain traces of DNA from their species of origin, has proved to be a valuable tool for the management of elusive wildlife. However, application of this approach can be limited by the availability of appropriate genetic markers. Scat DNA is often degraded, meaning that longer DNA sequences, including standard DNA barcoding markers, are difficult to recover...
August 1, 2017: GigaScience
https://www.readbyqxmd.com/read/28810690/validation-of-the-dermal-exposure-model-in-ecetoc-tra
#15
Hans Marquart, Remy Franken, Henk Goede, Wouter Fransman, Jody Schinkel
The ECETOC TRA model (presently version 3.1) is often used to estimate worker inhalation and dermal exposure in regulatory risk assessment. The dermal model in ECETOC TRA has not yet been validated by comparison with independent measured exposure levels. This was the goal of the present study. Measured exposure levels and relevant contextual information were gathered via literature search, websites of relevant occupational health institutes and direct requests for data to industry. Exposure data were clustered in so-called exposure cases, which are sets of data from one data source that are expected to have the same values for input parameters in the ECETOC TRA dermal exposure model...
August 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28810684/a-new-approach-combining-analytical-methods-for-workplace-exposure-assessment-of-inhalable-multi-walled-carbon-nanotubes
#16
Peter C Tromp, Eelco Kuijpers, Cindy Bekker, Lode Godderis, Qing Lan, Aleksandra D Jedynska, Roel Vermeulen, Anjoeka Pronk
To date there is no consensus about the most appropriate analytical method for measuring carbon nanotubes (CNTs), hampering the assessment and limiting the comparison of data. The goal of this study is to develop an approach for the assessment of the level and nature of inhalable multi-wall CNTs (MWCNTs) in an actual workplace setting by optimizing and evaluating existing analytical methods. In a company commercially producing MWCNTs, personal breathing zone samples were collected for the inhalable size fraction with IOM samplers; which were analyzed with carbon analysis, inductively coupled plasma mass spectrometry (ICP-MS) and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX)...
August 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28809993/adalimumab-in-chronic-plaque-psoriasis-a-clinical-guide
#17
Jashin J Wu, W C Valdecantos
<p>Psoriasis is a common, inflammatory disease that manifests itself as lesions on the skin, which greatly impacts the physical and psychological wellbeing of those affected. The current goal of treatment in psoriasis is to improve the signs and symptoms of disease, whilst minimizing the burden of disease on patient health-related quality of life. Psoriasis can also be associated with other comorbidities such as joint disease, cardiovascular disease, and depression, which can add to the complexity of treatment...
August 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28808992/a-photoaffinity-labeling-based-chemoproteomics-strategy-for-unbiased-target-deconvolution-of-small-molecule-drug-candidates
#18
Jason R Thomas, Scott M Brittain, Jennifer Lipps, Luis Llamas, Rishi K Jain, Markus Schirle
The combination of photoaffinity labeling (PAL) and quantitative chemoproteomics enables the comprehensive, unbiased determination of protein interaction profiles to support target identification of bioactive small molecules. This approach is amenable to cells in culture and compatible with pharmacologically relevant transmembrane target classes like G-protein coupled receptors and ions channels which have been notoriously hard to access by conventional chemoproteomics approaches. Here, we describe a strategy that combines PAL probe titration and competition with excess parental compounds with the goal of enabling the identification of specific interactors as well as assessing the functional relevance of a binding event for the phenotype under investigation...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28808845/targeted-treatment-in-severe-traumatic-brain-injury-in-the-age-of-precision-medicine
#19
Anthony A Figaji, A Graham Fieggen, Ncedile Mankahla, Nico Enslin, Ursula K Rohlwink
In recent years, much progress has been made in our understanding of traumatic brain injury (TBI). Clinical outcomes have progressively improved, but evidence-based guidelines for how we manage patients remain surprisingly weak. The problem is that the many interventions and strategies that have been investigated in randomized controlled trials have all disappointed. These include many concepts that had become standard care in TBI. And that is just for adult TBI; in children, the situation is even worse. Not only is pediatric care more difficult than adult care because physiological norms change with age, but also there is less evidence for clinical practice...
August 14, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28808792/using-natural-language-processing-of-free-text-radiology-reports-to-identify-type-1-modic-endplate-changes
#20
Hannu T Huhdanpaa, W Katherine Tan, Sean D Rundell, Pradeep Suri, Falgun H Chokshi, Bryan A Comstock, Patrick J Heagerty, Kathryn T James, Andrew L Avins, Srdjan S Nedeljkovic, David R Nerenz, David F Kallmes, Patrick H Luetmer, Karen J Sherman, Nancy L Organ, Brent Griffith, Curtis P Langlotz, David Carrell, Saeed Hassanpour, Jeffrey G Jarvik
Electronic medical record (EMR) systems provide easy access to radiology reports and offer great potential to support quality improvement efforts and clinical research. Harnessing the full potential of the EMR requires scalable approaches such as natural language processing (NLP) to convert text into variables used for evaluation or analysis. Our goal was to determine the feasibility of using NLP to identify patients with Type 1 Modic endplate changes using clinical reports of magnetic resonance (MR) imaging examinations of the spine...
August 14, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
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