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https://www.readbyqxmd.com/read/28816476/benefits-of-flexible-prioritization-in-working-memory-can-arise-without-costs
#1
Nicholas E Myers, Sammi R Chekroud, Mark G Stokes, Anna C Nobre
Most recent models conceptualize working memory (WM) as a continuous resource, divided up according to task demands. When an increasing number of items need to be remembered, each item receives a smaller chunk of the memory resource. These models predict that the allocation of attention to high-priority WM items during the retention interval should be a zero-sum game: improvements in remembering cued items come at the expense of uncued items because resources are dynamically transferred from uncued to cued representations...
August 17, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28738606/a-label-free-fluorometric-assay-for-actin-detection-based-on-enzyme-responsive-dna-templated-copper-nanoparticles
#2
Quanwei Song, Lixia Yang, Hongkun Chen, Rong Zhang, Na Na, Jin Ouyang
Herein, we develop a fluorescent strategy for label-free detection of actin by the in situ formation of double-stranded DNA (dsDNA) templated copper nanoparticles (CuNPs) and the digestion capability of deoxyribonuclease I (DNase I). In this design, the introduction of actin can effectively hinder the enzymic digestion owing to the exceptional target-mediated conformational structure between actin and DNase I. Consequently, the remaining adenine-thymine-rich dsDNA can act as an efficient template for fluorescent CuNPs (λex = 340nm, λem = 585nm) with a Mega-Stokes shifting (245nm)...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28660673/patient-reported-outcome-measures-in-advanced-musculoskeletal-physiotherapy-practice-a-systematic-review
#3
Orna Fennelly, Catherine Blake, François Desmeules, Diarmuid Stokes, Caitriona Cunningham
OBJECTIVE: Advanced practice physiotherapists (APPs), also known as extended scope physiotherapists, provide a new model of service delivery for musculoskeletal (MSK) disorders. Research to date has largely focused on health service efficiencies, with less emphasis on patient outcomes. The present systematic review aimed to identify the patient-reported outcome measures (PROMs) being utilized by APPs. METHOD: A wide search strategy was employed, including the PubMed, Embase, CINAHL, CENTRAL and PEDro databases, to identify studies relating to PROMs utilized by APPs in MSK healthcare settings...
June 29, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/28654814/an-overview-of-the-outcomes-and-impact-of-specialist-and-advanced-nursing-and-midwifery-practice-on-quality-of-care-cost-and-access-to-services-a-narrative-review
#4
REVIEW
Mary Casey, Laserina O'Connor, Andrew Cashin, Rita Smith, Denise O'Brien, Emma Nicholson, Denise O'Leary, Gerard Fealy, Martin McNamara, Mary Ellen Glasgow, Diarmuid Stokes, Claire Egan
OBJECTIVES: This paper presents the results of a systematic rapid review and narrative synthesis of the literature of the outcomes and impact of specialist and advanced nursing and midwifery practice regarding quality of care, cost and access to services. DESIGN: A rapid review was undertaken of the relevant national and international literature, regulatory and policy documents relating to the establishment and definition of nurses' and midwives' specialist and advanced practice roles...
June 17, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28628594/telehealth-wearable-sensors-and-the-internet-will-they-improve-stroke-outcomes-through-increased-intensity-of-therapy-motivation-and-adherence-to-rehabilitation-programs
#5
Jane H Burridge, Alan Chong W Lee, Ruth Turk, Maria Stokes, Jill Whitall, Ravi Vaidyanathan, Phil Clatworthy, Ann-Marie Hughes, Claire Meagher, Enrico Franco, Lucy Yardley
BACKGROUND AND PURPOSE: Stroke, predominantly a condition of older age, is a major cause of acquired disability in the global population and puts an increasing burden on health care resources. Clear evidence for the importance of intensity of therapy in optimizing functional outcomes is found in animal models, supported by neuroimaging and behavioral research, and strengthened by recent meta-analyses from multiple clinical trials. However, providing intensive therapy using conventional treatment paradigms is expensive and sometimes not feasible because of social and environmental factors...
July 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28555059/applications-of-fluorogens-with-rotor-structures-in-solar-cells
#6
REVIEW
Kok-Haw Ong, Bin Liu
Solar cells are devices that convert light energy into electricity. To drive greater adoption of solar cell technologies, higher cell efficiencies and reductions in manufacturing cost are necessary. Fluorogens containing rotor structures may be helpful in addressing some of these challenges due to their unique twisted structures and photophysics. In this review, we discuss the applications of rotor-containing molecules as dyes for luminescent down-shifting layers and luminescent solar concentrators, where their aggregation-induced emission properties and large Stokes shifts are highly desirable...
May 29, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28514521/combining-frozen-density-embedding-with-the-conductor-like-screening-model-using-lagrangian-techniques-for-response-properties
#7
Nils Schieschke, Roberto Di Remigio, Luca Frediani, Johannes Heuser, Sebastian Höfener
We present the explicit derivation of an approach to the multiscale description of molecules in complex environments that combines frozen-density embedding (FDE) with continuum solvation models, in particular the conductor-like screening model (COSMO). FDE provides an explicit atomistic description of molecule-environment interactions at reduced computational cost, while the outer continuum layer accounts for the effect of long-range isotropic electrostatic interactions. Our treatment is based on a variational Lagrangian framework, enabling rigorous derivations of ground- and excited-state response properties...
July 15, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28414340/comparison-of-chirped-probe-pulse-and-hybrid-femtosecond-picosecond-coherent-anti-stokes-raman-scattering-for-combustion-thermometry
#8
Daniel R Richardson, Hans U Stauffer, Sukesh Roy, James R Gord
A comparison is made between two ultrashort-pulse coherent anti-Stokes Raman scattering (CARS) thermometry techniques-hybrid femtosecond/picosecond (fs/ps) CARS and chirped-probe-pulse (CPP) fs-CARS-that have become standards for high-repetition-rate thermometry in the combustion diagnostics community. These two variants of fs-CARS differ only in the characteristics of the ps-duration probe pulse; in hybrid fs/ps CARS a spectrally narrow, time-asymmetric probe pulse is used, whereas a highly chirped, spectrally broad probe pulse is used in CPP fs-CARS...
April 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/28411822/label-free-and-sensitive-assay-for-deoxyribonuclease-i-activity-based-on-enzymatically-polymerized-superlong-poly-thymine-hosted-fluorescent-copper-nanoparticles
#9
Lan Luo, Fengzhou Xu, Hui Shi, Xiaoxiao He, Taiping Qing, Yanli Lei, Jinlu Tang, Dinggeng He, Kemin Wang
Deoxyribonuclease I (DNase I) is an important physiological indicator and diagnostic biomarker, but traditional methods for assessing its activity are time-consuming, laborious, and usually radioactive. Herein, by effectively combining the special functions of DNase I and terminal deoxynucleotidyl transferase (TdT), a simple, green, cost-effective, label-free and ultrasensitive assay for DNase I activity has been constructed based on superlong poly(thymine)-hosted copper nanoparticles (poly T-CuNPs). In this strategy, a 3'-phosphorylated DNA primer is designed to block TdT polymerization...
July 1, 2017: Talanta
https://www.readbyqxmd.com/read/28386158/valorisation-to-biogas-of-macroalgal-waste-streams-a-circular-approach-to-bioproducts-and-bioenergy-in-ireland
#10
Silvia Tedesco, Joseph Stokes
Seaweeds (macroalgae) have been recently attracting more and more interest as a third generation feedstock for bioenergy and biofuels. However, several barriers impede the deployment of competitive seaweed-based energy. The high cost associated to seaweed farming and harvesting, as well as their seasonal availability and biochemical composition currently make macroalgae exploitation too expensive for energy production only. Recent studies have indicated a possible solution to aforementioned challenges may lay in seaweed integrated biorefinery, in which a bioenergy and/or biofuel production step ends an extractions cascade of high-value bioproducts...
2017: Chemické Zvesti
https://www.readbyqxmd.com/read/28306169/economic-burden-of-relapsed-or-refractory-multiple-myeloma-results-from-an-international-trial
#11
Don Robinson, Robert Z Orlowski, Michael Stokes, Jianming He, Samuel Huse, Abhishek Chitnis, Britte Kranenburg, Annette Lam
OBJECTIVE: The direct cost of relapsed or refractory multiple myeloma (RRMM) is documented; indirect costs are being explored. Healthcare payers seek cost-offsets from therapies that improve clinical outcomes but challenge budgets; employers seek lower absenteeism and better productivity. Study goals were to: (i) identify direct and indirect economic factors of RRMM, and (ii) explore longitudinal relationships between clinical, economic, and health-related quality of life (HRQoL) assessments...
March 17, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28297968/lattice-boltzmann-simulations-of-microswimmer-tracer-interactions
#12
Joost de Graaf, Joakim Stenhammar
Hydrodynamic interactions in systems composed of self-propelled particles, such as swimming microorganisms and passive tracers, have a significant impact on the tracer dynamics compared to the equivalent "dry" sample. However, such interactions are often difficult to take into account in simulations due to their computational cost. Here, we perform a systematic investigation of swimmer-tracer interaction using an efficient force-counterforce-based lattice-Boltzmann (LB) algorithm [De Graaf et al., J. Chem...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28270582/bacteria-getting-into-shape-genetic-determinants-of-e-%C3%A2-coli-morphology
#13
Shawn French, Jean-Philippe Côté, Jonathan M Stokes, Ray Truant, Eric D Brown
Perturbation of cellular processes is a prevailing approach to understanding biology. To better understand the complicated biology that defines bacterial shape, a sensitive, high-content platform was developed to detect multiple morphological defect phenotypes using microscopy. We examined morphological phenotypes across the Escherichia coli K-12 deletion (Keio) collection at the mid-exponential growth phase, revealing 111 deletions perturbing shape. Interestingly, 64% of these were uncharacterized mutants, illustrating the complex nature of shape maintenance and regulation in bacteria...
March 7, 2017: MBio
https://www.readbyqxmd.com/read/28269066/a-method-to-detect-tortuosity-of-vessel-using-non-imaging-ultrasound-approach-in-carotid-structure
#14
Ravindra B Patil, P Krishnamoorthy
Stroke is a leading cause of functional impairments. The typical screening mechanism is to measure localized Peak Systolic Velocity (PSV) and diagnose impending risk associated with stoke by characterizing the PSV values. However, an accurate measurement of PSV using Doppler ultrasound is affected due to the tortuous nature of carotid artery in elder population group as the angle at which acoustic beam strikes the vessel is over or under estimated resulting in improper measure the blood flow velocity. Hence, the proposed approach estimates the degree of tortuosity of the carotid vessel and includes this as calibration parameter to compute an accurate PSV...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28265023/linearized-simulation-of-flow-over-wind-farms-and-complex-terrains
#15
Antonio Segalini
The flow over complex terrains and wind farms is estimated here by numerically solving the linearized Navier-Stokes equations. The equations are linearized around the unperturbed incoming wind profile, here assumed logarithmic. The Boussinesq approximation is used to model the Reynolds stress with a prescribed turbulent eddy viscosity profile. Without requiring the boundary-layer approximation, two new linear equations are obtained for the vertical velocity and the wall-normal vorticity, with a reduction in the computational cost by a factor of 8 when compared with a primitive-variables formulation...
April 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28253647/prediction-of-jet-mixing-noise-with-lighthill-s-acoustic-analogy-and-geometrical-acoustics
#16
Carlos R S Ilário, Mahdi Azarpeyvand, Victor Rosa, Rod H Self, Júlio R Meneghini
A computational aeroacoustics prediction tool based on the application of Lighthill's theory is presented to compute noise from subsonic turbulent jets. The sources of sound are modeled by expressing Lighthill's source term as two-point correlations of the velocity fluctuations and the sound refraction effects are taken into account by a ray tracing methodology. Both the source and refraction models use the flow information collected from a solution of the Reynolds Averaged Navier-Stokes equations with a standard k-epsilon turbulence model...
February 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28227283/a-method-to-detect-tortuosity-of-vessel-using-non-imaging-ultrasound-approach-in-carotid-structure
#17
Ravindra B Patil, P Krishnamoorthy, Ravindra B Patil, P Krishnamoorthy, Ravindra B Patil, P Krishnamoorthy
Stroke is a leading cause of functional impairments. The typical screening mechanism is to measure localized Peak Systolic Velocity (PSV) and diagnose impending risk associated with stoke by characterizing the PSV values. However, an accurate measurement of PSV using Doppler ultrasound is affected due to the tortuous nature of carotid artery in elder population group as the angle at which acoustic beam strikes the vessel is over or under estimated resulting in improper measure the blood flow velocity. Hence, the proposed approach estimates the degree of tortuosity of the carotid vessel and includes this as calibration parameter to compute an accurate PSV...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28153774/patterns-of-care-and-survival-outcomes-for-adolescent-and-young-adult-patients-with-testicular-seminoma-in-the-united-states-a-national-cancer-database-analysis
#18
William Stokes, Arya Amini, Paul D Maroni, Elizabeth R Kessler, Claire Stokes, Carrye R Cost, Brian S Greffe, Timothy P Garrington, Arthur K Liu, Nicholas G Cost
INTRODUCTION: Testicular germ cell tumors (GCTs) are the most common solid tumor among adolescent and young adult (AYA) males. AYA patients with GCTs most typically have non-seminoma compared with seminoma, and accordingly there are fewer data reported on the AYA experience with testicular seminoma. OBJECTIVE: To evaluate national trends in postoperative treatment and overall survival (OS) outcomes in testicular seminoma by age group, specifically comparing AYAs with older adults...
January 17, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28068279/identifying-predictors-of-central-sleep-apnea-cheyne-stokes-breathing-in-chronic-heart-failure-a-pathophysiological-approach
#19
REVIEW
Aneliya I Draganova, Kiril V Terziyski, Stefan S Kostianev
Chronic heart failure (CHF) is a major health problem associated with increased mortality, despite modern treatment options. Central sleep apnea (CSA)/Cheyne-Stokes breathing (CSB) is a common and yet largely under-diagnosed co-morbidity, adding significantly to the poor prognosis in CHF because of a number of acute and chronic effects, including intermittent hypoxia, sympathetic overactivation, disturbed sleep architecture and impaired physical tolerance. It is characterized by repetitive periods of crescendo-decrescendo ventilatory pattern, alternating with central apneas and hypopneas...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28059913/liposomal-bupivacaine-use-in-transversus-abdominis-plane-blocks-reduces-pain-and-postoperative-intravenous-opioid-requirement-after-colorectal-surgery
#20
Audrey L Stokes, Sanjib D Adhikary, Ashley Quintili, Frances J Puleo, Christine S Choi, Christopher S Hollenbeak, Evangelos Messaris
BACKGROUND: Enhanced recovery protocols frequently use multimodal postoperative analgesia to improve postoperative outcomes in patients undergoing colorectal surgery. OBJECTIVE: The purpose of this study was to evaluate liposomal bupivacaine use in transversus abdominis plane blocks on postoperative pain scores and opioid use after colorectal surgery. DESIGN: This was a retrospective cohort study comparing outcomes between patients receiving nonliposomal anesthetic (n = 104) and liposomal bupivacaine (n = 303) blocks...
February 2017: Diseases of the Colon and Rectum
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