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Adaptive design

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https://www.readbyqxmd.com/read/28526667/patient-centered-decision-support-formative-usability-evaluation-of-integrated-clinical-decision-support-with-a-patient-decision-aid-for-minor-head-injury-in-the-emergency-department
#1
Edward R Melnick, Erik P Hess, George Guo, Maggie Breslin, Kevin Lopez, Anthony J Pavlo, Fuad Abujarad, Seth M Powsner, Lori A Post
BACKGROUND: The Canadian Computed Tomography (CT) Head Rule, a clinical decision rule designed to safely reduce imaging in minor head injury, has been rigorously validated and implemented, and yet expected decreases in CT were unsuccessful. Recent work has identified empathic care as a key component in decreasing CT overuse. Health information technology can hinder the clinician-patient relationship. Patient-centered decision tools to support the clinician-patient relationship are needed to promote evidence-based decisions...
May 19, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28526663/effects-of-using-child-personas-in-the-development-of-a-digital-peer-support-service-for-childhood-cancer-survivors
#2
Pontus Wärnestål, Petra Svedberg, Susanne Lindberg, Jens M Nygren
BACKGROUND: Peer support services have the potential to support children who survive cancer by handling the physical, mental, and social challenges associated with survival and return to everyday life. Involving the children themselves in the design process allows for adapting services to authentic user behaviors and goals. As there are several challenges that put critical requirements on a user-centered design process, we developed a design method based on personas adapted to the particular needs of children that promotes health and handles a sensitive design context...
May 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28526562/new-intracellular-activities-of-matrix-metalloproteinases-shine-in-the-moonlight
#3
REVIEW
Parker G Jobin, Georgina S Butler, ChristopherM Overall
Adaption of a single protein to perform multiple independent functions facilitates functional plasticity of the proteome allowing a limited number of protein-coding genes to perform a multitude of cellular processes. Multifunctionality is achievable by post-translational modifications and by modulating subcellular localization. Matrix metalloproteinases (MMPs), classically viewed as degraders of the extracellular matrix (ECM) responsible for matrix protein turnover, are more recently recognized as regulators of a range of extracellular bioactive molecules including chemokines, cytokines, and their binders...
May 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28526485/improving-the-sexual-health-of-young-people-with-mobility-impairments-challenges-and-recommendations
#4
Molly Secor-Turner, Barbara J McMorris, Peter Scal
INTRODUCTION: This mixed-method study (a) describes challenges to providing sexual health services to youth with mobility impairments from the perspective of health care providers and experts and (b) describes and compares sexual health-related experiences of youth with mobility impairments. METHOD: Secondary data analysis of My Path, a study focused on the transition to adulthood for youth with mobility impairments. Using an exploratory sequential design, qualitative data (n = 10) were analyzed using systematic content analysis followed by quantitative analysis of survey data (N = 337)...
May 16, 2017: Journal of Pediatric Health Care
https://www.readbyqxmd.com/read/28526119/effects-of-temperature-salinity-and-composition-of-the-dinoflagellate-assemblage-on-the-growth-of-gambierdiscus-carpenteri-isolated-from-the-great-barrier-reef
#5
Leanne Sparrow, Paolo Momigliano, Garry R Russ, Kirsten Heimann
Increases in reported incidence of ciguatera fish poisoning (hereafter ciguatera) have been linked to warmer sea temperatures that are known to trigger coral bleaching events. The drivers that trigger blooms of ciguatera-causing dinoflagellates on the Great Barrier Reef (GBR) are poorly understood. This study investigated the effects of increased temperatures and lowered salinities, often associated with environmental disturbance events, on the population growth of two strains of the potentially ciguatera-causing dinoflagellate, Gambierdiscus carpenteri (NQAIF116 and NQAIF380)...
May 2017: Harmful Algae
https://www.readbyqxmd.com/read/28523827/statistical-model-based-hplc-analytical-method-adjustment-strategy-to-adapt-to-different-sets-of-analytes-in-complicated-samples
#6
Binjun Yan, Xue Bai, Yunjie Sheng, Fanzhu Li
INTRODUCTION: On account of the complicated compositions of the products like traditional Chinese medicines (TCMs) and functional foods, it is a common practice to determine different sets of analytes in the same product for different purposes. OBJECTIVE: To efficiently develop the corresponding HPLC methods, a statistical model based analytical method adjustment (SMB-AMA) strategy was proposed. METHODS: In this strategy, the HPLC data acquired with design of experiments methodology were efficiently utilised to build the retention models for all the analytes and interferences shown in the chromatograms with multivariate statistical modelling methods...
May 19, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28523233/a-new-method-allowing-long-term-potentiation-recordings-in-hippocampal-organotypic-slices
#7
Paula Paci, Sylvain Gabriele, Laurence Ris
BACKGROUND: Hippocampal organotypic slices are used to improve the understanding of synaptic plasticity mechanisms because they allow longer term studies compared to acute slices. However, it is more delicate to keep cultures alive in the recording system outside in vitro conditions. Experiments from the organotypic cultures are common but the handling of slices is rarely described in the literature, even though tissue preservation is crucial. Instruments are sometimes required to extract the slices from the culture inserts but this approach is delicate and can lead to damage, given how strongly the slices are attached to the insert...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28523216/foresight-beats-hindsight-the-neural-correlates-underlying-motor-preparation-in-the-pro-anti-cue-paradigm
#8
Franziska Emmerling, Felix Duecker, Tom A de Graaf, Teresa Schuhmann, Jos J Adam, Alexander T Sack
BACKGROUND: Human motor behaviors are characterized by both, reactive and proactive mechanisms. Yet, studies investigating the neural correlates of motor behavior almost exclusively focused on reactive motor processes. Here, we employed the pro-/anti-cue motor preparation paradigm to systematically study proactive motor control in an imaging environment. In this paradigm, either pro- or anti-cues are presented in a blocked design. Four fingers (two from each hand) are mapped onto four visual target locations...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28522844/high-performance-pvc-gel-for-adaptive-micro-lenses-with-variable-focal-length
#9
Jin Woo Bae, Eun-Jae Shin, Jaeu Jeong, Dong-Soo Choi, Jong Eun Lee, Byeong Uk Nam, Liwei Lin, Sang-Youn Kim
This paper presents a bio-inspired adaptive micro-lens with electrically tunable focus made of non-ionic high-molecular-weight polyvinyl chloride (PVC) gel. The optical device mimics the design of the crystalline lens and ciliary muscle of the human eye. It consists of a plano-convex PVC gel micro-lens on Indium Tin Oxide (ITO) glass, confined with an annular electrode operating as an artificial ciliary muscle. Upon electrical activation, the electroactive adhesive force of the PVC gel is exerted on the annular anode electrode, which reduces the sagittal height of the plano-convex PVC gel lens, resulting in focal length variation of the micro-lens...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521819/linking-hypoxia-dna-damage-and-proliferation-in-multicellular-tumor-spheroids
#10
Stephen Riffle, Ram Naresh Pandey, Morgan Albert, Rashmi S Hegde
BACKGROUND: Multicellular Tumor Spheroids are frequently used to mimic the regionalization of proliferation and the hypoxic environment within avascular tumors. Here we exploit these features to study the activation of DNA damage repair pathways and their correlation to developing hypoxia. METHODS: Activation of DNA damage repair markers, proliferation, cell death, glycogen accumulation and developing hypoxia were investigated using immunofluorescence, immuno-histochemistry, EdU incorporation, Western blots, COMET assays, and pharmacological agents in A673 Ewing sarcoma spheroids and monolayer cultures...
May 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28521732/the-berlin-inventory-of-gambling-behavior-screening-big-s-validation-using-a-clinical-sample
#11
Martin Wejbera, Kai W Müller, Jan Becker, Manfred E Beutel
BACKGROUND: Published diagnostic questionnaires for gambling disorder in German are either based on DSM-III criteria or focus on aspects other than life time prevalence. This study was designed to assess the usability of the DSM-IV criteria based Berlin Inventory of Gambling Behavior Screening tool in a clinical sample and adapt it to DSM-5 criteria. METHODS: In a sample of 432 patients presenting for behavioral addiction assessment at the University Medical Center Mainz, we checked the screening tool's results against clinical diagnosis and compared a subsample of n=300 clinically diagnosed gambling disorder patients with a comparison group of n=132...
May 18, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28520893/using-bayesian-modeling-in-frequentist-adaptive-enrichment-designs
#12
Noah Simon, Richard Simon
Our increased understanding of the mechanistic heterogeneity of diseases has pushed the development of targeted therapeutics. We do not expect all patients with a given disease to benefit from a targeted drug; only those in the target population. That is, those with sufficient dysregulation in the biomolecular pathway targeted by treatment. However, due to complexity of the pathway, and/or technical issues with our characterizing assay, it is often hard to characterize the target population until well into large-scale clinical trials...
May 17, 2017: Biostatistics
https://www.readbyqxmd.com/read/28518095/use-of-a-central-venous-line-for-fluids-drugs-and-nutrient-administration-in-a-mouse-model-of-critical-illness
#13
Sarah Derde, Steven Thiessen, Chloë Goossens, Thomas Dufour, Greet Van den Berghe, Lies Langouche
This protocol describes a centrally catheterized mouse model of prolonged critical illness. We combine the cecal ligation and puncture method to induce sepsis with the use of a central venous line for fluids, drugs and nutrient administration to mimic the human clinical setting. Critically ill patients require intensive medical support in order to survive. While the majority of patients will recover within a few days, about a quarter of the patients need prolonged intensive care and are at high risk of dying from non-resolving multiple organ failure...
May 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28517041/modifying-illness-beliefs-in-recent-onset-psychosis-carers-evaluating-the-impact-of-a-cognitively-focused-brief-group-intervention-in-a-routine-service
#14
Juliana Onwumere, Naomi Glover, Sarah Whittaker, Shireen Rahim, Lai Chu Man, Gareth James, Sanna Khan, Roya Afsharzadegan, Saal Seneviratne, Raythe Harvey, Anna Georgiades, David Raune
AIMS: At first-episode psychosis (FEP), many patients will be routed within familial networks and supported by informal carers who are predominately close family members such as parents. Carer burden, distress and poorer coping styles are associated with different illness beliefs. The current study sought to examine the impact and acceptability of a 3 session, cognitively informed, group intervention targeting illness beliefs previously linked to distress and poorer caregiving experiences in FEP carers...
May 18, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28516321/evaluating-local-adaptation-of-a-complex-phenotype-reciprocal-tests-of-pigmy-rattlesnake-venoms-on-treefrog-prey
#15
Sarah A Smiley-Walters, Terence M Farrell, H Lisle Gibbs
Theory predicts that predator-prey interactions can generate reciprocal selection pressures on species pairs, which can result in local adaptation, yet the presence and pattern of local adaptation is poorly studied in vertebrate predator-prey systems. Here, we used a reciprocal common garden (laboratory) experimental design involving comparisons between local and foreign populations to determine if local adaptation was present between a generalist predator-the pigmy rattlesnake (Sistrurus miliarius)-and a co-occurring prey-the squirrel treefrog (Hyla squirella)...
May 17, 2017: Oecologia
https://www.readbyqxmd.com/read/28516294/does-seeing-an-asian-face-make-speech-sound-more-accented
#16
Yi Zheng, Arthur G Samuel
Prior studies have reported that seeing an Asian face makes American English sound more accented. The current study investigates whether this effect is perceptual, or if it instead occurs at a later decision stage. We first replicated the finding that showing static Asian and Caucasian faces can shift people's reports about the accentedness of speech accompanying the pictures. When we changed the static pictures to dubbed videos, reducing the demand characteristics, the shift in reported accentedness largely disappeared...
May 17, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28516174/when-personal-tracking-becomes-social-examining-the-use-of-instagram-for-healthy-eating
#17
Chia-Fang Chung, Elena Agapie, Jessica Schroeder, Sonali Mishra, James Fogarty, Sean A Munson
Many people appropriate social media and online communities in their pursuit of personal health goals, such as healthy eating or increased physical activity. However, people struggle with impression management, and with reaching the right audiences when they share health information on these platforms. Instagram, a popular photo-based social media platform, has attracted many people who post and share their food photos. We aim to inform the design of tools to support healthy behaviors by understanding how people appropriate Instagram to track and share food data, the benefits they obtain from doing so, and the challenges they encounter...
May 2, 2017: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
https://www.readbyqxmd.com/read/28515314/the-mzidentml-data-standard-version-1-2-supporting-advances-in-proteome-informatics
#18
Juan Antonio Vizcaíno, Gerhard Mayer, Simon R Perkins, Harald Barsnes, Marc Vaudel, Yasset Perez-Riverol, Tobias Ternent, Julian Uszkoreit, Martin Eisenacher, Lutz Fischer, Juri Rappsilber, Eugen Netz, Mathias Walzer, Oliver Kohlbacher, Alexander Leitner, Robert J Chalkley, Fawaz Ghali, Salvador Martínez-Bartolomé, Eric W Deutsch, Andrew R Jones
The first stable version of the Proteomics Standards Initiative mzIdentML open data standard (version 1.1) was published in 2012 - capturing the outputs of peptide and protein identification software. In the intervening years, the standard has become well supported in both commercial and open software, as well as a submission and download format for public repositories. Here we report a new release of mzIdentML (version 1.2) that is required to keep pace with emerging practice in proteome informatics. New features have been added to support: (i) scores associated with localization of modifications on peptides; (ii) statistics performed at the level of peptides; (iii) identification of cross-linked peptides; and (iv) support for proteogenomics approaches...
May 17, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28515297/attenuation-of-foot-and-mouth-disease-virus-by-engineering-viral-polymerase-fidelity
#19
Devendra K Rai, Fayna Diaz-San Segundo, Grace Campagnola, Anna Keith, Elizabeth A Schafer, Anna Kloc, Teresa de Los Santos, Olve Peersen, Elizabeth Rieder
Foot-and-mouth disease virus (FMDV) RNA-dependent RNA polymerase (RdRp or 3D(pol)) catalyzes viral RNA synthesis. Its characteristic low fidelity and absence of proofreading activity allows FMDV to rapidly mutate and adapt to dynamic environments. In this study, we used the structure of FMDV 3D(pol) in combination with prior results from similar picornaviral polymerases to design point mutations that would alter replication fidelity. In particular, we targeted Trp237 within conserved polymerase motif A because of the low reversion potential inherent in the single UGG codon...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28515076/vertically-transmitted-symbionts-as-mechanisms-of-transgenerational-effects
#20
Pedro E Gundel, Jennifer A Rudgers, Kenneth D Whitney
PREMISE OF THE STUDY: A transgenerational effect occurs when a biotic or abiotic environmental factor acts on a parental individual and thereby affects the phenotype of progeny. Due to the importance of transgenerational effects for understanding plant ecology and evolution, their underlying mechanisms are of general interest. Here, we introduce the concept that inherited symbiotic microorganisms could act as mechanisms of transgenerational effects in plants. METHODS: We define the criteria required to demonstrate that transgenerational effects are microbially mediated and review evidence from the well-studied, vertically transmitted plant-fungal symbiosis (grass-Epichloë spp...
May 17, 2017: American Journal of Botany
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