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Information theory

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https://www.readbyqxmd.com/read/28647727/patients-as-partners-in-enhanced-recovery-after-surgery-a-qualitative-patient-led-study
#1
Chelsia Gillis, Marlyn Gill, Nancy Marlett, Gail MacKean, Kathy GermAnn, Loreen Gilmour, Gregg Nelson, Tracy Wasylak, Susan Nguyen, Edamil Araujo, Sandra Zelinsky, Leah Gramlich
OBJECTIVES: Explore the experience of patients undergoing colorectal surgery within an Enhanced Recovery After Surgery (ERAS) programme. Use these experiential data to inform the development of a framework to support ongoing, meaningful patient engagement in ERAS. DESIGN: Qualitative patient-led study using focus groups and narrative interviews. Data were analysed iteratively using a Participatory Grounded Theory approach. SETTING: Five tertiary care centres in Alberta, Canada, following the ERAS programme...
June 24, 2017: BMJ Open
https://www.readbyqxmd.com/read/28647594/chronic-mild-stress-impairs-latent-inhibition-and-induces-region-specific-neural-activation-in-chl1-deficient-mice-a-mouse-model-of-schizophrenia
#2
Mona Buhusi, Daniel Obray, Bret Guercio, Mitchell J Bartlett, Catalin V Buhusi
Schizophrenia is a neurodevelopmental disorder characterized by abnormal processing of information and attentional deficits. Schizophrenia has a high genetic component but is precipitated by environmental factors, as proposed by the 'two-hit' theory of schizophrenia. Here we compared latent inhibition as a measure of learning and attention, in CHL1-deficient mice, an animal model of schizophrenia, and their wild-type littermates, under no-stress and chronic mild stress conditions. All unstressed mice as well as the stressed wild-type mice showed latent inhibition...
June 21, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28646889/apps-to-improve-diet-physical-activity-and-sedentary-behaviour-in-children-and-adolescents-a-review-of-quality-features-and-behaviour-change-techniques
#3
Stephanie Schoeppe, Stephanie Alley, Amanda L Rebar, Melanie Hayman, Nicola A Bray, Wendy Van Lippevelde, Jens-Peter Gnam, Philip Bachert, Artur Direito, Corneel Vandelanotte
BACKGROUND: The number of commercial apps to improve health behaviours in children is growing rapidly. While this provides opportunities for promoting health, the content and quality of apps targeting children and adolescents is largely unexplored. This review systematically evaluated the content and quality of apps to improve diet, physical activity and sedentary behaviour in children and adolescents, and examined relationships of app quality ratings with number of app features and behaviour change techniques (BCTs) used...
June 24, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28646851/development-of-an-education-campaign-to-reduce-delays-in-pre-hospital-response-to-stroke
#4
Caterina Caminiti, Peter Schulz, Barbara Marcomini, Elisa Iezzi, Silvia Riva, Umberto Scoditti, Andrea Zini, Giovanni Malferrari, Maria Luisa Zedde, Donata Guidetti, Enrico Montanari, Mario Baratti, Licia Denti
BACKGROUND: Systematic reviews call for well-designed trials with clearly described intervention components to support the effectiveness of educational campaigns to reduce patient delay in stroke presentation. We herein describe the systematic development process of a campaign aimed to increase stroke awareness and preparedness. METHODS: Campaign development followed Intervention Mapping (IM), a theory- and evidence-based tool, and was articulated in two phases: needs assessment and intervention development...
June 24, 2017: BMC Emergency Medicine
https://www.readbyqxmd.com/read/28646808/traditional-uyghur-medicine-concepts-historical-perspective-and-modernization
#5
Adelijang Wusiman, Saifuding Abula, Mikeremu Shayibuzhati, Xiaoying Zhang
Context • Traditional Uyghur medicine (TUM) is rooted in ancient Uyghur medical theory that was developed with the combined essence of different traditional medicines, such as Han Chinese, Egyptian, ancient Greek, Arabian, Persian, and Indian medicines. Modern experimental methods and technologies for disease diagnoses have accelerated the modernization of Uyghur medicine. Objective • The research team intended to compile a comprehensive introduction to TUM and to determine the current state of research in the field to establish a basis for future modernization of Uygur medicine...
June 23, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28644840/linking-structure-and-activity-in-nonlinear-spiking-networks
#6
Gabriel Koch Ocker, Krešimir Josić, Eric Shea-Brown, Michael A Buice
Recent experimental advances are producing an avalanche of data on both neural connectivity and neural activity. To take full advantage of these two emerging datasets we need a framework that links them, revealing how collective neural activity arises from the structure of neural connectivity and intrinsic neural dynamics. This problem of structure-driven activity has drawn major interest in computational neuroscience. Existing methods for relating activity and architecture in spiking networks rely on linearizing activity around a central operating point and thus fail to capture the nonlinear responses of individual neurons that are the hallmark of neural information processing...
June 23, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28644764/interventions-to-improve-breastfeeding-self-efficacy-and-resultant-breastfeeding-rates-a-systematic-review-and-meta-analysis
#7
Meredith Brockway, Karen Benzies, K Alix Hayden
BACKGROUND: Maternal breastfeeding self-efficacy (BSE) is reflective of a mother's confidence in breastfeeding and is a modifiable factor that may improve breastfeeding rates. Breastfeeding self-efficacy theory purports that women with higher BSE will have better breastfeeding outcomes. Research aim: The aim of this systematic review was to explore the theoretical link between BSE and breastfeeding outcomes by investigating (a) if interventions to improve BSE were successful and (b) if improvements in BSE resulted in improved breastfeeding rates...
June 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28644652/topological-insulators-in-amorphous-systems
#8
Adhip Agarwala, Vijay B Shenoy
Much of the current understanding of topological insulators, which informs the experimental search for topological materials and systems, is based on crystalline band theory, where local electronic degrees of freedom at different crystal sites hybridize with each other in ways that produce nontrivial topology. Here we provide a novel theoretical demonstration of realizing topological phases in amorphous systems, as exemplified by a set of sites randomly located in space. We show this by constructing hopping models on such random lattices whose gapped ground states are shown to possess nontrivial topological nature (characterized by Bott indices) that manifests as quantized conductances in systems with a boundary...
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28644033/direct-indirect-nature-of-the-bandgap-in-lead-free-perovskite-nanocrystals
#9
Yuhai Zhang, Jun Yin, Manas R Parida, Ghada H Ahmed, Jun Pan, Osman M Bakr, Jean-Luc Bredas, Omar F Mohammed
With record efficiencies achieved in lead halide perovskite-based photovoltaics, urgency has shifted towards finding alternative materials that are stable and less-toxic. Bismuth-based perovskite materials are currently one of the most promising candidates amongst those alternatives. However, the band structures of these materials, including the nature of the bandgaps, remain elusive due to extremely low photoluminescence quantum yield (PLQY) and scattering issues in their thin-film or bulk form. Here, we overcome those limitations and reveal the specific nature of the material's electronic transitions by realizing monodisperse colloidal nanocrystals (NCs) of hexagonal-phase Cs3Bi2X9 perovskites, which afford well-resolved PL features...
June 23, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28643559/informing-healthcare-waiting-area-design-using-transparency-attributes-a-comparative-preference-study
#10
Shan Jiang, Matthew Powers, David Allison, Ellen Vincent
OBJECTIVE: This study aimed to explore people's visual preference for waiting areas in general hospital environments designed with transparency attributes that fully integrate nature. BACKGROUND: Waiting can be a tedious and frustrating experience among people seeking healthcare treatments and negatively affect their perception of the quality of care. Positive distractions and supportive designs have gained increasing attraction to improve people's waiting experience...
July 2017: HERD
https://www.readbyqxmd.com/read/28643388/a-longitudinal-item-response-theory-model-to-characterize-cognition-over-time-in-elderly-subjects
#11
Marc Vandemeulebroecke, Björn Bornkamp, Tillmann Krahnke, Johanna Mielke, Andreas Monsch, Peter Quarg
For drug development in neurodegenerative diseases such as Alzheimer's disease, it is important to understand which cognitive domains carry most information on earliest signs of cognitive decline, and which subject characteristics are associated with a faster decline. A longitudinal Item Response Theory (IRT) model was developed for the Basel Study of the Elderly, in which the Consortium to Establish a Registry for Alzheimer's Disease - Neuropsychological Assessment Battery (with additions) and the California Verbal Learning Test were measured on 1750 elderly subjects for up to 13...
June 23, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28643131/strong-comma-free-codes-in-genetic-information
#12
Elena Fimmel, Christian J Michel, Lutz Strüngmann
Comma-free codes constitute a class of circular codes, which has been widely studied, in particular by Golomb et al. (Biologiske Meddelelser, Kongelige Danske Videnskabernes Selskab 23:1-34, 1958a, Can J Math 10:202-209, 1958b), Michel et al. (Comput Math Appl 55:989-996, 2008a, Theor Comput Sci 401:17-26, 2008b, Inf Comput 212:55-63, 2012), Michel and Pirillo (Int J Comb 2011:659567, 2011), and Fimmel and Strüngmann (J Theor Biol 389:206-213, 2016). Based on a recent approach using graph theory to study circular codes Fimmel et al...
June 22, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28642431/quantum-and-isotope-effects-in-lithium-metal
#13
Graeme J Ackland, Mihindra Dunuwille, Miguel Martinez-Canales, Ingo Loa, Rong Zhang, Stanislav Sinogeikin, Weizhao Cai, Shanti Deemyad
The crystal structure of elements at zero pressure and temperature is the most fundamental information in condensed matter physics. For decades it has been believed that lithium, the simplest metallic element, has a complicated ground-state crystal structure. Using synchrotron x-ray diffraction in diamond anvil cells and multiscale simulations with density functional theory and molecular dynamics, we show that the previously accepted martensitic ground state is metastable. The actual ground state is face-centered cubic (fcc)...
June 23, 2017: Science
https://www.readbyqxmd.com/read/28641817/-preventing-violence-in-schizophrenia-with-cognitive-remediation
#14
C Darmedru, C Demily, N Franck
OBJECTIVES: The association between schizophrenia and violence represents an important issue in psychiatry. Often highly publicized, violent acts raise the question of their detection, prevention, management and treatment. There is no single, direct and exclusive link between aggressiveness and the underlying psychiatric disorder. On the contrary, the processes underlying this violence are multiple and interlinked. In addition to static and dynamic risk factors, cognitive deficits play an important role in the genesis and maintenance of violent and aggressive behavior...
June 19, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28641423/dynamics-magnetic-properties-and-electron-binding-energies-of-h2o2-in-water
#15
Benedito J C Cabral
Results for the magnetic properties and electron binding energies of H2O2 in liquid water are presented. The adopted methodology relies on the combination of Born-Oppenheimer molecular dynamics and electronic structure calculations. The Keal-Tozer functional was applied for predicting magnetic shieldings and H2O2 intramolecular spin-spin coupling constants. Electron binding energies were calculated with electron propagator theory. In water, H2O2 is a better proton donor than proton acceptor, and the present results indicate that this feature is important for understanding magnetic properties in solution...
June 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28641063/launching-adoptees-into-adulthood-mothers-and-fathers-promotion-of-volitional-functioning
#16
Sonia Ranieri, Laura Ferrari, Daniela Barni, Rosa Rosnati
In the psychological literature, there is growing evidence that parental support of children's volitional functioning is one of the most prominent protective factors during adolescence and the transition to adulthood. According to the Self-Determination Theory, children cope best with developmental tasks when they acquire a sense of self-governance and self-endorsed functioning. In the field of adoption research, however, the parental promotion of volitional functioning (PVF) and its relation to the adopted child's development are still underinvestigated...
July 2017: Journal of Prevention & Intervention in the Community
https://www.readbyqxmd.com/read/28640534/dynamics-of-transcriptomic-response-to-infection-by-the-nematode-heterorhabditis-bacteriophora-and-its-bacterial-symbiont-photorhabdus-temperata-in-heliothis-virescens-larvae
#17
R An, K S Suri, J L Jurat-Fuentes, P S Grewal
Entomopathogenic nematodes in the Heterorhabditis genus and their symbiotic Photorhabdus bacteria are important biocontrol agents of insect pests and models for the study of microbe-host interactions. In this work, we used larvae of the tobacco budworm (Heliothis virescens) as a model to study its defensive mechanisms against Heterorhabditis bacteriophora nematodes carrying symbiotic Photorhabdus temperata. We first determined time points of initial nematode entry and release of bacteria into the haemolymph to perform transcriptional analysis of insect gene expression during these steps in the infective process...
June 22, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28640036/a-constructive-reframing-of-student-roles-and-systems-learning-in-medical-education-using-a-communities-of-practice-lens
#18
Jed D Gonzalo, Britta M Thompson, Paul Haidet, Karen Mann, Daniel R Wolpaw
Health systems are in the midst of a transformation that is being driven by a variety of forces. This has important implications for medical educators because clinical practice environments play a key role in learning and professional development, and evolving health systems are beginning to demand that providers have "systems-ready" knowledge, attitudes, and skills. Such implications provide a clear mandate for medical schools to modify their goals and prepare physicians to practice flexibly within teams and effectively contribute to the improvement of health care delivery...
June 20, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28639455/item-response-theory-analysis-of-the-psychopathic-personality-inventory-revised
#19
Alexander E Eichenbaum, David K Marcus, Brian F French
This study examined item and scale functioning in the Psychopathic Personality Inventory-Revised (PPI-R) using an item response theory analysis. PPI-R protocols from 1,052 college student participants (348 male, 704 female) were analyzed. Analyses were conducted on the 131 self-report items comprising the PPI-R's eight content scales, using a graded response model. Scales collected a majority of their information about respondents possessing higher than average levels of the traits being measured. Each scale contained at least some items that evidenced limited ability to differentiate between respondents with differing levels of the trait being measured...
June 1, 2017: Assessment
https://www.readbyqxmd.com/read/28638509/resident-experiences-with-implementation-of-the-i-pass-handoff-bundle
#20
Maitreya Coffey, Kelly Thomson, Shelly-Anne Li, Zia Bismilla, Amy J Starmer, Jennifer K O'Toole, Rebecca L Blankenburg, Glenn Rosenbluth, F Sessions Cole, Clifton E Yu, Jennifer H Hepps, Theodore C Sectish, Nancy D Spector, Rajendu Srivastava, April D Allen, Sanjay Mahant, Christopher P Landrigan
BACKGROUND: The I-PASS Handoff Study found that introduction of a handoff bundle (handoff and teamwork training for residents, a mnemonic, a handoff tool, a faculty development program, and a sustainability campaign) at 9 pediatrics residency programs was associated with improved communication and patient safety. OBJECTIVE: This parallel qualitative study aimed to understand resident experiences with I-PASS and to inform future implementation and sustainability strategies...
June 2017: Journal of Graduate Medical Education
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