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Zengjian Liu, Buzhou Tang, Xiaolong Wang, Qingcai Chen
De-identification, identifying information from data, such as protected health information (PHI) present in clinical data, is a critical step to enable data to be shared or published. The 2016 Centers of Excellence in Genomic Science (CEGS) Neuropsychiatric Genome-scale and RDOC Individualized Domains (N-GRID) clinical natural language processing (NLP) challenge contains a de-identification track in de-identifying electronic medical records (EMRs) (i.e., track 1). The challenge organizers provide 1000 annotated mental health records for this track, 600 out of which are used as a training set and 400 as a test set...
June 1, 2017: Journal of Biomedical Informatics
Matylda Hennig, Agnieszka Brandt, Joanna Bautembach-Minkowska, Dominik Świętoń, Agnieszka Mickiewicz, Magdalenia Chmara, Bartosz Wasąg, Ewa Kamińska, Anna Balcerska, Janusz Limon, Andrzej Rynkiewicz, Marcin Gruchała, Małgorzata Myśliwiec
INTRODUCTION: Familial hypercholesterolemia (FH) is one of the most common autosomal dominant disorders. It is characterized by elevated LDL cholesterol levels occurring already by early childhood. Awareness of health risks in FH patients should incite health professionals to actively seek and treat children with lipid disorders to reduce their risk of myocardial infarction and stroke. OBJECTIVE: The aim of the study was to evaluate the suitability of taking into account the following parameters: ApoB/ApoA index, IMT and e-tracking examination, when initiating statin therapy in FH patients...
2017: Developmental Period Medicine
Mathieu Collette, Carlo Palombo, Carmela Morizzo, Sara Sbragi, Michaela Kozakova, Georges Leftheriotis
Described here is a new method for determination of carotid-femoral pulse wave velocity (PWV) based on arterial diameter waveform recording by an ultrasound system. The study was carried out on 120 consecutive patients. Carotid-femoral PWV was determined using a tonometric technique (PWVpp, PulsePen, DiaTecne, Milan, Italy) and an echotracking ultrasound system (PWVet, E-Track, Aloka, Tokyo, Japan). The relationship between PWVpp and PWVet was evaluated by linear regression and Bland-Altman analysis. There was excellent agreement between PWVet and PWVpp (Pearson's r = 0...
June 2017: Ultrasound in Medicine & Biology
Yixin Guo, Junfeng Liu, Denise L Mauzerall, Xiaoyuan Li, Larry W Horowitz, Wei Tao, Shu Tao
Ground-level ozone (O3), harmful to most living things, is produced from both domestic and foreign emissions of anthropogenic precursors. Previous estimates of the linkage from distant sources rely on the sensitivity approach (i.e., modeling the change of ozone concentrations that result from modifying precursor emissions) as well as the tagging approach (i.e., tracking ozone produced from specific O3 precursors emitted from one region). Here, for the first time, we tag all O3 precursors (i.e., nitrogen oxides (NOx), carbon monoxide (CO), and volatile organic compounds (VOCs)) from East Asia and explicitly track their physicochemical evolution without perturbing the nonlinear O3 chemistry...
May 2, 2017: Environmental Science & Technology
Violeta Rabrenovich, David M Baer, Joanne E Schottinger
139 Background: Kaiser Permanente (KP) is an integrated health care delivery system that provides clinical services to over 10 million members in nine states and the District of Columbia. Since 2007, KP oncology community collaborates at the national level to systematically improve safety and quality of care. Our improvements are accelerated by rapid adoption of evidence based protocols, leveraging of EMR and integration of quality improvement methods into clinical operations. METHODS: KP created a team that included oncologists, hepatologists, rheumatologist, pharmacy, and quality improvement experts to evaluate safety of existing practice...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
B J Zwan, E Colvill, J Booth, D J O'Connor, P Keall, P B Greer
PURPOSE: The added complexity of the real-time adaptive multi-leaf collimator (MLC) tracking increases the likelihood of undetected MLC delivery errors. In this work we develop and test a system for real-time delivery verification and error detection for MLC tracking radiotherapy using an electronic portal imaging device (EPID). METHODS: The delivery verification system relies on acquisition and real-time analysis of transit EPID image frames acquired at 8.41 fps...
June 2016: Medical Physics
Elizabeth A Simpson, Annika Paukner, Valentina Sclafani, Stefano S K Kaburu, Stephen J Suomi, Pier F Ferrari
RATIONALE: Exogenous oxytocin administration is widely reported to improve social cognition in human and nonhuman primate adults. Risk factors of impaired social cognition, however, emerge in infancy. Early interventions-when plasticity is greatest-are critical to reverse negative outcomes. OBJECTIVE: We tested the hypothesis that oxytocin may exert similar positive effects on infant social cognition, as in adults. To test this idea, we assessed the effectiveness of acute, aerosolized oxytocin on two foundational social cognitive skills: working memory (i...
February 2017: Psychopharmacology
Nlingisisi D Babayani, Jan A van Wyk, Eric R Morgan
Infection with the abomasal nematode Haemonchus contortus is responsible for considerable production loss in small ruminants globally, and especially in warm, summer-rainfall regions. Previous attempts to predict infection levels have followed the traditional framework for macroparasite models, i.e. tracking parasite population sizes as a function of host and climatic factors. Targeted treatment strategies, in which patho-physiological indices are used to identify the individuals most affected by parasites, could provide a foundation for alternative, incidence-based epidemiological models...
November 1, 2016: Preventive Veterinary Medicine
Bernard Grandjean, Marc A Maier
Muscle spindle discharge during active movement is a function of mechanical and neural parameters. Muscle length changes (and their derivatives) represent its primary mechanical, fusimotor drive its neural component. However, neither the action nor the function of fusimotor and in particular of γ-drive, have been clearly established, since γ-motor activity during voluntary, non-locomotor movements remains largely unknown. Here, using a computational approach, we explored whether γ-drive emerges in an artificial neural network model of the corticospinal system linked to a biomechanical antagonist wrist simulator...
September 27, 2016: Journal of Computational Neuroscience
Andrei Barcaru, Eduard Derks, Gabriel Vivó-Truyols
A novel peak tracking method based on Bayesian statistics is proposed. The method consists of assigning (i.e. tracking) peaks from two GCxGC-FID data sets of the same sample taken in different conditions. Opposed to traditional (i.e. deterministic) peak tracking algorithms, in which the assignment problem is solved with a unique solution, the proposed algorithm is probabilistic. In other words, we quantify the uncertainty of matching two peaks without excluding other possible candidates, ranking the possible peak assignments regarding their posterior probability...
October 12, 2016: Analytica Chimica Acta
Romain Pirracchio, John K Yue, Geoffrey T Manley, Mark J van der Laan, Alan E Hubbard
Standard statistical practice used for determining the relative importance of competing causes of disease typically relies on ad hoc methods, often byproducts of machine learning procedures (stepwise regression, random forest, etc.). Causal inference framework and data-adaptive methods may help to tailor parameters to match the clinical question and free one from arbitrary modeling assumptions. Our focus is on implementations of such semiparametric methods for a variable importance measure (VIM). We propose a fully automated procedure for VIM based on collaborative targeted maximum likelihood estimation (cTMLE), a method that optimizes the estimate of an association in the presence of potentially numerous competing causes...
June 29, 2016: Statistical Methods in Medical Research
Denisa Salihović Hajdarević, Aleksandra M Pavlović, Dzevdet Smajlović, Ana Podgorac, Zagorka Jovanović, Tamara Svabić Medjedović, Nadezda Covicković Sternić
INTRODUCTION: Cerebral ischemic small-vessel disease (SVD), causing lacunar infarcts and white matter hyperintensities on brain magnetic resonance imaging (MRI), is a progressive disease associated with an increased risk of stroke, dementia and death. Increased arterial stiffness has been associated with ischemic stroke and cerebral SVD independently of common vascular risk factors. OBJECTIVE: The aim of the study was to analyze arterial stiffness in our patients with symptomatic SVD...
January 2016: Srpski Arhiv za Celokupno Lekarstvo
Vanja Basić Kes, Miljenka-Jelena Jurasić, Iris Zavoreo, Lejla Corić, Kresimir Rotim
Recently migraine has been associated with increased arterial stiffness, procoagulant state, increased incidence of cerebral white matter lesions (WML) and stroke. Our aim was to compare the characteristics of migraineurs to headache free controls regarding their functional carotid ultrasound parameters. Sixty patients (45 women) with migraine (mean age 40.42 ± 10.61 years) were compared with 45 controls (30 women) with no prior history of repeating headache (mean age 38.94 ± 5.46 years) using E-tracking software on Alpha 10 ultrasound platform...
December 2015: Acta Clinica Croatica
Anne Choquette, Janet E Rennick, Virginia Lee
BACKGROUND: Little is known about the influence of cancer on the adolescent's developing self-identity and social relationships as he/she transitions back to school following cancer treatment. OBJECTIVE: The purpose of this study was to explore the meaning of returning to school for adolescents who have completed cancer treatment. METHODS: In this qualitative study, in-depth interviews using an interpretive descriptive approach were conducted with 11 adolescents (aged 13-17 years) who had completed treatment for cancer...
September 2016: Cancer Nursing
Michelle Hurst, Sara Cordes
Although fractions, decimals, and whole numbers can be used to represent the same rational-number values, it is unclear whether adults conceive of these rational-number magnitudes as lying along the same ordered mental continuum. In the current study, we investigated whether adults' processing of rational-number magnitudes in fraction, decimal, and whole-number notation show systematic ratio-dependent responding characteristic of an integrated mental continuum. Both reaction time (RT) and eye-tracking data from a number-magnitude comparison task revealed ratio-dependent performance when adults compared the relative magnitudes of rational numbers, both within the same notation (e...
February 2016: Journal of Experimental Psychology. Human Perception and Performance
Christine J Catling, Caroline S E Homer
BACKGROUND: In 1989, the first major state-wide report into maternity services, known as the Shearman Report after its author, was released in New South Wales, the most populous state in Australia. AIM: This paper reflects upon the report and tracks the progress of five of its key recommendations. The recommendations are still some of the major issues facing maternity services across the country. These are: community-based maternity care, rural maternity services, hospital visiting rights for privately practising midwives, obstetric intervention, and midwifery continuity of maternity care...
February 2016: Women and Birth: Journal of the Australian College of Midwives
Andrés Schlageter-Tello, Eddie A M Bokkers, Peter W G Groot Koerkamp, Tom Van Hertem, Stefano Viazzi, Carlos E B Romanini, Ilan Halachmi, Claudia Bahr, Daniël Berckmans, Kees Lokhorst
Lameness is still an important problem in modern dairy farming. Human observation of locomotion, by looking at different traits in one go, is used in practice to assess locomotion. The objectives of this article were to determine which individual locomotion traits are most related to locomotion scores in dairy cows, and whether experienced raters are capable of scoring these individual traits consistently. Locomotion and 5 individual locomotion traits (arched back, asymmetric gait, head bobbing, reluctance to bear weight, and tracking up) were scored independently on a 5-level scale for 58 videos of different cows...
December 2015: Journal of Dairy Science
Paul E Milligan, Mary C Bocox, Elizabeth Pratt, Christine M Hoehner, John E Krettek, Wm Claiborne Dunagan
PURPOSE: Substantial reductions in inpatient episodes of severe hypoglycemia achieved by a large healthcare system through enhanced use of technology and sustained quality-improvement initiatives are described. SUMMARY: After internal data collection and analysis revealed that severe hypoglycemia accounted for 75% of all systematically monitored adverse drug events in its hospital network, St. Louis-based BJC HealthCare designed and executed a multifaceted approach to reducing hypoglycemia events...
October 1, 2015: American Journal of Health-system Pharmacy: AJHP
Christopher F Shay, Michele Ferrante, G William Chapman, Michael E Hasselmo
Rebound spiking properties of medial entorhinal cortex (mEC) stellate cells induced by inhibition may underlie their functional properties in awake behaving rats, including the temporal phase separation of distinct grid cells and differences in grid cell firing properties. We investigated rebound spiking properties using whole cell patch recording in entorhinal slices, holding cells near spiking threshold and delivering sinusoidal inputs, superimposed with realistic inhibitory synaptic inputs to test the capacity of cells to selectively respond to specific phases of inhibitory input...
March 2016: Neurobiology of Learning and Memory
Christopher P Calderon, Kerry Bloom
Understanding the basis for intracellular motion is critical as the field moves toward a deeper understanding of the relation between Brownian forces, molecular crowding, and anisotropic (or isotropic) energetic forcing. Effective forces and other parameters used to summarize molecular motion change over time in live cells due to latent state changes, e.g., changes induced by dynamic micro-environments, photobleaching, and other heterogeneity inherent in biological processes. This study discusses limitations in currently popular analysis methods (e...
2015: PloS One
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