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https://www.readbyqxmd.com/read/28538930/dissatisfaction-with-the-dental-services-and-associated-factors-among-adults
#1
Luana Leal Roberto, Andréa Maria Eleutério de Barros Lima Martins, Alfredo Maurício Batista de Paula, Efigênia Ferreira E Ferreira, Desirée Sant' Ana Haikal
This study aimed to identify factors associated with dissatisfaction with dental services among adults. It analyzed 830 adult participants of an epidemiological survey of oral health. The dependent variable was dissatisfaction with the dental service, and the independent ones were selected according to the theoretical model set forth by Andersen and Davidson (1997). Estimates were corrected by the sample design effect, and Binary Logistic Regression was carried out. It was found that about 11% of adults were dissatisfied with the dental service...
May 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28538654/a-monitoring-system-for-laying-hens-that-uses-a-detection-sensor-based-on-infrared-technology-and-image-pattern-recognition
#2
Mauro Zaninelli, Veronica Redaelli, Fabio Luzi, Valentino Bontempo, Vittorio Dell'Orto, Giovanni Savoini
In Italy, organic egg production farms use free-range housing systems with a big outdoor area and a flock of no more than 500 hens. With additional devices and/or farming procedures, the whole flock could be forced to stay in the outdoor area for a limited time of the day. As a consequence, ozone treatments of housing areas could be performed in order to reduce the levels of atmospheric ammonia and bacterial load without risks, due by its toxicity, both for hens and workers. However, an automatic monitoring system, and a sensor able to detect the presence of animals, would be necessary...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538337/developing-a-logarithmic-chinese-reading-acuity-chart
#3
Qi-Ming Han, Lin-Juan Cong, Cong Yu, Lei Liu
PURPOSE: An individual's reading ability cannot be reliably predicted from his/her letter acuity, contrast sensitivity, and visual field extent. We developed a set of Chinese reading acuity charts (C-READ) to assess the reading ability of Chinese readers, based on the collective wisdom of previously published reading acuity charts, especially the MNRead and the Radner Reading Charts. METHODS: The C-READ consists of three charts. Each consists sixteen 12-character simplified Chinese sentences crafted from first- to third-grade textbooks...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28538335/bigaussian-wavefront-model-for-normal-and-keratoconic-eyes
#4
Jos J Rozema, Pablo Rodríguez, Rafael Navarro, Carina Koppen
PURPOSE: To report bigaussian multivariate wavefront models capable of stochastically generating an unlimited amount of plausible wavefront data for either normal or keratoconic eyes. METHODS: The models use centroid wavefront data measured previously with an iTrace in 330 healthy right eyes and 122 keratoconic right eyes. These centroids were fitted to an 11th-order Zernike series, followed by principal component analysis to reduce dimensionality and remove correlations...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28538334/influence-of-optic-disc-size-on-identifying-glaucomatous-optic-neuropathy
#5
Gregory J Nixon, Ronald K Watanabe, Michael Sullivan-Mee, Anthony DeWilde, Lisa Young, G Lynn Mitchell
PURPOSE: The aim of this study was to use a large group of observers to test prior research findings that suggest optic disc size, clinical evaluation of the neuroretinal rim (ISNT rule), and practitioner characteristics influence the accuracy of differentiating normal from glaucomatous optic nerves. METHODS: Participant observers were optometrists, optometry students, and vision scientists/researchers attending the 2013 American Academy of Optometry Annual Meeting...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28538167/understanding-the-bioavailability-and-sequestration-of-different-metal-cations-in-the-presence-of-a-biodegradable-chelant-mgda-in-biological-fluids-and-natural-waters
#6
Clemente Bretti, Rosalia Maria Cigala, Concetta De Stefano, Gabriele Lando, Silvio Sammartano
Thermodynamic information about the metal-ligand interaction between Fe(3+), Zn(2+), Cu(2+) and Sn(2+), and a biodegradable ligand as MGDA is reported. The speciation scheme was obtained by means of potentiometric measurements and isothermal titration calorimetry (to determine enthalpy changes) in NaCl medium. The formation of the ML and MLOH species was evidenced for all the metal cations, and for Fe(3+) also the ML2 and ML(OH)2 were found. The relative stability, for the ML species, follows the order: Sn(2+) > Fe(3+) > Cu(2+) > Zn(2+)...
May 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28538138/factors-leading-to-overutilisation-of-hospital-pathology-testing-the-junior-doctor
#7
William Ericksson, Janine Bothe, Heidi Cheung, Kate Zhang, Simone Kelly
Objective Pathology overutilisation is a significant issue affecting the quality and cost of health care. Because junior medical officers (JMOs) order most pathology tests in the hospital setting, the aim of the present study was to identify the main reasons for hospital pathology overutilisation from the perspective of the JMO.Methods A qualitative method, using focus group methodology, was undertaken. Sixteen JMOs from two hospitals participated in three focus groups. Data were analysed using thematic analysis...
May 25, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28537773/a-new-generation-of-comfort-care-order-sets-aligning-protocols-with-current-principles
#8
Melissa A Bender, Caroline Hurd, Nicole Solvang, Kathy Colagrossi, Diane Matsuwaka, J Randall Curtis
BACKGROUND: There are few published comfort care order sets for end-of-life symptom management, contributing to variability in treatment of common symptoms. At our academic medical centers, we have observed that rapid titration of opioid infusions using our original comfort care order set's titration algorithm causes increased discomfort from opioid toxicity. OBJECTIVE: The aim of this study was to describe the process and outcomes of a multiyear revision of a standardized comfort care order set for clinicians to treat end-of-life symptoms in hospitalized patients...
May 24, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28535468/action-effect-sharing-induces-task-set-sharing-in-joint-task-switching
#9
Motonori Yamaguchi, Helen J Wall, Bernhard Hommel
A central issue in the study of joint task performance has been one of whether co-acting individuals perform their partner's part of the task as if it were their own. The present study addressed this issue by using joint task switching. A pair of actors shared two tasks that were presented in a random order, whereby the relevant task and actor were cued on each trial. Responses produced action effects that were either shared or separate between co-actors. When co-actors produced separate action effects, switch costs were obtained within the same actor (i...
May 20, 2017: Cognition
https://www.readbyqxmd.com/read/28534854/methodical-challenges-and-a-possible-resolution-in-the-assessment-of-receptor-reserve-for-adenosine-an-agonist-with-short-half-life
#10
Judit Zsuga, Tamas Erdei, Katalin Szabó, Nora Lampe, Csaba Papp, Akos Pinter, Andras Jozsef Szentmiklosi, Bela Juhasz, Zoltán Szilvássy, Rudolf Gesztelyi
The term receptor reserve, first introduced and used in the traditional receptor theory, is an integrative measure of response-inducing ability of the interaction between an agonist and a receptor system (consisting of a receptor and its downstream signaling). The underlying phenomenon, i.e., stimulation of a submaximal fraction of receptors can apparently elicit the maximal effect (in certain cases), provides an opportunity to assess the receptor reserve. However, determining receptor reserve is challenging for agonists with short half-lives, such as adenosine...
May 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28534810/non-invasive-fetal-monitoring-a-maternal-surface-ecg-electrode-placement-based-novel-approach-for-optimization-of-adaptive-filter-control-parameters-using-the-lms-and-rls-algorithms
#11
Radek Martinek, Radana Kahankova, Homer Nazeran, Jaromir Konecny, Janusz Jezewski, Petr Janku, Petr Bilik, Jan Zidek, Jan Nedoma, Marcel Fajkus
This paper is focused on the design, implementation and verification of a novel method for the optimization of the control parameters (such as step size μ and filter order N) of LMS and RLS adaptive filters used for noninvasive fetal monitoring. The optimization algorithm is driven by considering the ECG electrode positions on the maternal body surface in improving the performance of these adaptive filters. The main criterion for optimal parameter selection was the Signal-to-Noise Ratio (SNR). We conducted experiments using signals supplied by the latest version of our LabVIEW-Based Multi-Channel Non-Invasive Abdominal Maternal-Fetal Electrocardiogram Signal Generator, which provides the flexibility and capability of modeling the principal distribution of maternal/fetal ECGs in the human body...
May 19, 2017: Sensors
https://www.readbyqxmd.com/read/28534797/transition-icons-for-time-series-visualization-and-exploratory-analysis
#12
Paul Nickerson, Raheleh Baharloo, Amal A Wanigatunga, Todd D Manini, Patrick J Tighe, Parisa Rashidi
The modern healthcare landscape has seen the rapid emergence of techniques and devices which temporally monitor and record physiological signals. The prevalence of time series data within the healthcare field necessitates the development of methods which can analyze the data in order to draw meaningful conclusions. Time series behavior is notoriously difficult to intuitively understand due to its intrinsic high-dimensionality, which is compounded in the case of analyzing groups of time series collected from different patients...
May 16, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28534793/an-information-theoretic-cluster-visualization-for-self-organizing-maps
#13
Leonardo Enzo Brito da Silva, Donald C Wunsch
Improved data visualization will be a significant tool to enhance cluster analysis. In this paper, an information-theoretic-based method for cluster visualization using self-organizing maps (SOMs) is presented. The information-theoretic visualization (IT-vis) has the same structure as the unified distance matrix, but instead of depicting Euclidean distances between adjacent neurons, it displays the similarity between the distributions associated with adjacent neurons. Each SOM neuron has an associated subset of the data set whose cardinality controls the granularity of the IT-vis and with which the first- and second-order statistics are computed and used to estimate their probability density functions...
May 17, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28534788/rankmap-a-framework-for-distributed-learning-from-dense-data-sets
#14
Azalia Mirhoseini, Eva L Dyer, Ebrahim M Songhori, Richard Baraniuk, Farinaz Koushanfar
This paper introduces RankMap, a platform-aware end-to-end framework for efficient execution of a broad class of iterative learning algorithms for massive and dense data sets. Our framework exploits data structure to scalably factorize it into an ensemble of lower rank subspaces. The factorization creates sparse low-dimensional representations of the data, a property which is leveraged to devise effective mapping and scheduling of iterative learning algorithms on the distributed computing machines. We provide two APIs, one matrix-based and one graph-based, which facilitate automated adoption of the framework for performing several contemporary learning applications...
May 17, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28534767/domain-generalization-and-adaptation-using-low-rank-exemplar-svms
#15
Wen Li, Zheng Xu, Dong Xu, Dengxin Dai, Luc Van Gool
Domain adaptation between diverse source and target domains is a challenging research problem, especially in the real-world visual recognition tasks where the images and videos consist of significant variations in viewpoints, illuminations, qualities, etc. In this paper, we propose a new approach for domain generalization and domain adaptation based on exemplar SVMs. Specifically, we decompose the source domain into many subdomains, each of which contains only one positive training sample and all negative samples...
May 16, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28534759/new-advances-push-engineered-tissues-toward-3-d-multidisciplinary-collaboration-is-key-to-the-success-of-regenerative-medicine
#16
Leslie Mertz
Although doctors still cannot simply order new, functioning organs for patients who need replacements, researchers in labs around the world are making the important advances in tissue engineering that set the stage for regenerative medicine as well as make other biomedical technologies possible.
May 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28534656/early-development-in-rett-syndrome-the-benefits-and-difficulties-of-a-birth-cohort-approach
#17
Peter B Marschik, Sanne Lemcke, Christa Einspieler, Dajie Zhang, Sven Bölte, Gillian S Townend, Marlene B Lauritsen
PURPOSES: Typically, early (pre-diagnostic) development in individuals later diagnosed with Rett syndrome (RTT) has been investigated retrospectively using parent reports, medical records and analysis of home videos. In recent years, prospective research designs have been increasingly applied to the investigation of early development in individuals with late phenotypical onset disorders, for example, autism spectrum disorder. METHODS: In this study, data collected by the Danish National Birth Cohort lent itself to prospective exploration of the early development of RTT, in particular early motor-, speech-language, and socio-communicative behaviors, mood, and sleep...
May 23, 2017: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/28534569/the-a-center-defect-in-diamond-quantum-mechanical-characterization-through-the-infrared-spectrum
#18
Simone Salustro, Giuseppe Sansone, Claudio M Zicovich-Wilson, Yves Noël, Lorenzo Maschio, Roberto Dovesi
The A-center in diamond, which consists of two nitrogen atoms substituting two neighboring carbon atoms, has been investigated at the quantum mechanical level using an all-electron Gaussian type basis set, hybrid functionals and the periodic supercell approach. In order to simulate different defect concentrations, four supercells have been considered containing 32, 64, 128 and 216 atoms, respectively. The ground state is a closed shell system where the two neighboring nitrogen atoms are separated, as a consequence of the strong repulsive interaction between the lone pairs, by 2...
May 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28534224/characterization-of-mhc-class-i-in-a-long-distance-migratory-wader-the-icelandic-black-tailed-godwit
#19
Sara Pardal, Anna Drews, José A Alves, Jaime A Ramos, Helena Westerdahl
The major histocompatibility complex (MHC) encodes proteins that are central for antigen presentation and pathogen elimination. MHC class I (MHC-I) genes have attracted a great deal of interest among researchers in ecology and evolution and have been partly characterized in a wide range of bird species. So far, the main focus has been on species within the bird orders Galliformes and Passeriformes, while Charadriiformes remain vastly underrepresented with only two species studied to date. These two Charadriiformes species exhibit striking differences in MHC-I characteristics and MHC-I diversity...
May 23, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28534181/assessing-decision-making-capacity-for-do-not-resuscitate-requests-in-depressed-patients-how-to-apply-the-communication-and-appreciation-criteria
#20
Benjamin D Brody, Ellen C Meltzer, Diana Feldman, Julie B Penzner, Janna S Gordon-Elliot
The Patient Self Determination Act (PSDA) of 1991 brought much needed attention to the importance of advance care planning and surrogate decision-making. The purpose of this law is to ensure that a patient's preferences for medical care are recognized and promoted, even if the patient loses decision-making capacity (DMC). In general, patients are presumed to have DMC. A patient's DMC may come under question when distortions in thinking and understanding due to illness, delirium, depression or other psychiatric symptoms are identified or suspected...
May 22, 2017: HEC Forum: An Interdisciplinary Journal on Hospitals' Ethical and Legal Issues
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