keyword
MENU ▼
Read by QxMD icon Read
search

Benchmarking

keyword
https://www.readbyqxmd.com/read/28922570/catalyst-stability-benchmarking-for-the-oxygen-evolution-reaction-the-importance-of-backing-electrode-material-and-dissolution-in-accelerated-aging-studies
#1
Simon Geiger, Olga Kasian, Andrea M Mingers, Shannon S Nicley, Ken Haenen, Karl J J Mayrhofer, Serhiy Cherevko
In searching for alternative oxygen evolution reaction (OER) catalysts for acidic water splitting, fast screening of materials intrinsic activity and stability in half-cell tests is of vital importance. It significantly accelerates the discovery of new promising materials without the need of time-consuming real cell analysis. In commonly employed tests, a conclusion on the catalyst stability is drawn solely on the basis of pure electrochemical information, e.g. by evaluating potential vs. time profiles. In this work we demonstrate important limitations of such approaches, which are related to the degradation of the backing electrode material...
September 18, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28922206/hidden-costs-of-hospitalization-after-firearm-injury-national-analysis-of-different-hospital-readmission
#2
Rishi Rattan, Joshua Parreco, Nicholas Namias, Gerd D Pust, D Dante Yeh, Tanya L Zakrison
OBJECTIVE: To compare the risk factors and costs associated with readmission after firearm injury nationally, including different hospitals. BACKGROUND: No national studies capture readmission to different hospitals after firearm injury. METHODS: The 2013 to 2014 Nationwide Readmissions Database was queried for patients admitted after firearm injury. Logistic regression identified risk factors for 30-day same and different hospital readmission...
September 15, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28922130/haze-removal-using-radial-basis-function-networks-for-visibility-restoration-applications
#3
Bo-Hao Chen, Shih-Chia Huang, Chian-Ying Li, Sy-Yen Kuo
Restoration of visibility in hazy images is the first relevant step of information analysis in many outdoor computer vision applications. To this aim, the restored image must feature clear visibility with sufficient brightness and visible edges, while avoiding the production of noticeable artifacts. In this paper, we propose a haze removal approach based on the radial basis function (RBF) through artificial neural networks dedicated to effectively removing haze formation while retaining not only the visible edges but also the brightness of restored images...
September 15, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28922126/functional-contour-following-via-haptic-perception-and-reinforcement-learning
#4
Randall B Hellman, Cem Tekin, Mihaela van der Schaar, Veronica J Santos
Many tasks involve the fine manipulation of objects despite limited visual feedback. In such scenarios, tactile and proprioceptive feedback can be leveraged for task completion. We present an approach for real-time haptic perception and decision-making for a haptics-driven, functional contour-following task: the closure of a ziplock bag. This task is challenging for robots because the bag is deformable, transparent, and visually occluded by artificial fingertip sensors that are also compliant. A deep neural net classifier was trained to estimate the state of a zipper within a robot's pinch grasp...
September 18, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28922115/colour-constancy-beyond-the-classical-receptive-field
#5
Arash Akbarinia, C Alejandro Parraga
The problem of removing illuminant variations to preserve the colours of objects (colour constancy) has already been solved by the human brain using mechanisms that rely largely on centre-surround computations of local contrast. In this paper we adopt some of these biological solutions described by long known physiological findings into a simple, fully automatic, functional model (termed Adaptive Surround Modulation or ASM). In ASM, the size of a visual neuron's receptive field (RF) as well as the relationship with its surround varies according to the local contrast within the stimulus, which in turn determines the nature of the centre-surround normalisation of cortical neurons higher up in the processing chain...
September 18, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28921980/benchmark-of-dynamic-electron-correlation-models-for-seniority-zero-wavefunctions-and-their-application-to-thermochemistry
#6
Katharina Boguslawski, Pawel Tecmer
Wave functions restricted to electron-pair states are promising models to describe static/nondynamic electron correlation effects encountered, for instance, in bond-dissociation processes and transition-metal and actinide chemistry. To reach spectroscopic accuracy, however, the missing dynamic electron correlation effects that cannot be described by electron-pair states need to be included a posteriori. In this article, we extend the previously presented perturbation theory models with an Antisymmetric Product of 1-reference orbital Geminal (AP1roG) reference function that allow us to describe both static/nondynamic and dynamic electron correlation effects...
September 18, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28921510/development-of-a-formaldehyde-biosensor-with-application-to-synthetic-methylotrophy
#7
Benjamin M Woolston, Timothy Roth, Ishwar Kohale, David Liu, Gregory Stephanopoulos
Formaldehyde is a prevalent environmental toxin and a key intermediate in single carbon metabolism. The ability to monitor formaldehyde concentration is therefore of interest for both environmental monitoring and for metabolic engineering of native and synthetic methylotrophs, but current methods suffer from low sensitivity, complex workflows, or require expensive analytical equipment. Here we develop a formaldehyde biosensor based on the FrmR repressor protein and cognate promoter of E. coli. Optimization of the native repressor binding site and regulatory architecture enabled detection at levels as low as 1 µM...
September 16, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28921401/experience-with-curative-radiotherapy-for-cervix-cancer-in-the-bahamas-for-2006-2016
#8
Glenn Jones, Osama Kellini, Nevein Girgis, Darron Halliday, Raleigh Butler, Thomas McGowan, Conville Brown
BACKGROUND: Cervix cancer is a significant health problem. As access to quality care in Small Island Developing States improves, and cancer centers become established, providers of care can summarize local experience to benchmark system quality and look for ways to further improve value. METHODS: This is a retrospective study of all cases of cervix cancer managed 2006-2016 at The Cancer Centre Bahamas, in conjunction with Princess Margaret Hospital, Nassau, affiliated with The University of West Indies...
September 18, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28920914/robust-visual-tracking-via-online-discriminative-and-low-rank-dictionary-learning
#9
Tao Zhou, Fanghui Liu, Harish Bhaskar, Jie Yang
In this paper, we propose a novel and robust tracking framework based on online discriminative and low-rank dictionary learning. The primary aim of this paper is to obtain compact and low-rank dictionaries that can provide good discriminative representations of both target and background. We accomplish this by exploiting the recovery ability of low-rank matrices. That is if we assume that the data from the same class are linearly correlated, then the corresponding basis vectors learned from the training set of each class shall render the dictionary to become approximately low-rank...
September 12, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28920911/efficient-online-learning-algorithms-based-on-lstm-neural-networks
#10
Tolga Ergen, Suleyman Serdar Kozat
We investigate online nonlinear regression and introduce novel regression structures based on the long short term memory (LSTM) networks. For the introduced structures, we also provide highly efficient and effective online training methods. To train these novel LSTM-based structures, we put the underlying architecture in a state space form and introduce highly efficient and effective particle filtering (PF)-based updates. We also provide stochastic gradient descent and extended Kalman filter-based updates. Our PF-based training method guarantees convergence to the optimal parameter estimation in the mean square error sense provided that we have a sufficient number of particles and satisfy certain technical conditions...
September 13, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28920906/clotchip-a-microfluidic-dielectric-sensor-for-point-of-care-assessment-of-hemostasis
#11
Debnath Maji, Michael A Suster, Erdem Kucukal, Ujjal D S Sekhon, Anirban Sen Gupta, Umut A Gurkan, Evi X Stavrou, Pedram Mohseni
This paper describes the design, fabrication, and testing of a microfluidic sensor for dielectric spectroscopy of human whole blood during coagulation. The sensor, termed ClotChip, employs a three-dimensional, parallel-plate, capacitive sensing structure with a floating electrode integrated into a microfluidic channel. Interfaced with an impedance analyzer, the ClotChip measures the complex relative dielectric permittivity, ϵ Tr, of human whole blood in the frequency range of 40 Hz to 100 MHz. The temporal variation in the real part of the blood dielectric permittivity at 1 MHz features a time to reach a permittivity peak, Tpeak, as well as a maximum change in permittivity after the peak, ∆εr,max, as two distinct parameters of ClotChip readout...
September 12, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28920900/fundamental-principles-on-learning-new-features-for-effective-dense-matching
#12
Feihu Zhang, Benjamin W Wah
In dense matching (including stereo matching and optical flow), nearly all existing approaches are based on simple features, such as gray or RGB color, gradient or simple transformations like census, to calculate matching costs. These features do not perform well in complex scenes that may involve radiometric changes, noises, overexposure and/or textureless regions. Various problems may appear, such as wrong matching at the pixel or region level, flattening/breaking of edges and/or even entire structural collapse...
September 14, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28920899/autobd-automated-bi-level-description-for-scalable-fine-grained-visual-categorization
#13
Hantao Yao, Shiliang Zhang, Chenggang Yan, Yongdong Zhang, Jintao Li, Qi Tian
Compared with traditional image classification, fine-grained visual categorization is a more challenging task because it targets to classify objects belonging to the same species, e.g., classify hundreds of birds or cars. In the past several years, researchers have made many achievements on this topic. However, most of them are heavily dependent on the artificial annotations, e.g., bounding boxes, part annotations, etc. The requirement of artificial annotations largely hinders the scalability and application...
September 13, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28920896/analysis-and-optimization-of-loss-functions-for-multiclass-top-k-and-multilabel-classification
#14
Maksim Lapin, Matthias Hein, Bernt Schiele
Top-k error is currently a popular performance measure on large scale image classification benchmarks such as ImageNet and Places. Despite its wide acceptance, our understanding of this metric is limited as most of the previous research is focused on its special case, the top-1 error. In this work, we explore two directions that shed light on the top-k error. First, we provide an in-depth analysis of established and recently proposed single-label multiclass methods along with a detailed account of efficient optimization algorithms for them...
September 13, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28920597/an-assessment-of-the-random-phase-approximation-functional-and-characteristics-analysis-for-noncovalent-cation-%C3%AF-interactions
#15
He Su, Qiyang Wu, Hongyan Wang, Hui Wang
The binding energy is of great importance in understanding the formation and stability of noncovalent interactions. However, the determination of the binding energy with high precision and efficiency in medium- and long-range noncovalent interactions is still challenging for quantum chemistry. Here, we assess the performance of random-phase approximation (RPA), a fully non-local fifth-rung of the Jacob ladder functional, in determining the binding energy of cation-π systems (cation = Li(+), Na(+), Be(2+), Mg(2+), Al(+), and NH4(+); π = C6H6), which, to the best of our knowledge, has not been investigated...
September 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28919118/global-regional-and-national-disability-adjusted-life-years-dalys-for-333-diseases-and-injuries-and-healthy-life-expectancy-hale-for-195-countries-and-territories-1990-2016-a-systematic-analysis-for-the-global-burden-of-disease-study-2016
#16
(no author information available yet)
BACKGROUND: Measurement of changes in health across locations is useful to compare and contrast changing epidemiological patterns against health system performance and identify specific needs for resource allocation in research, policy development, and programme decision making. Using the Global Burden of Diseases, Injuries, and Risk Factors Study 2016, we drew from two widely used summary measures to monitor such changes in population health: disability-adjusted life-years (DALYs) and healthy life expectancy (HALE)...
September 16, 2017: Lancet
https://www.readbyqxmd.com/read/28918734/the-2016-royal-australian-and-new-zealand-college-of-psychiatrists-guidelines-for-the-management-of-schizophrenia-and-related-disorders
#17
David J Castle, Cherrie A Galletly, Frances Dark, Verity Humberstone, Vera A Morgan, Eóin Killackey, Jayashri Kulkarni, Patrick McGorry, Olav Nielssen, Nga T Tran, Assen Jablensky
The Royal Australian and New Zealand College of Psychiatrists (RANZCP) clinical practice guidelines for the management of schizophrenia and related disorders provide evidence-based recommendations for optimising treatment and prognosis. This update to the 2005 RANZCP guidelines has a greater emphasis on psychosocial treatments, physical health comorbidities and vocational rehabilitation. Main recommendations: The guidelines advise a clinical staging approach and deliver specific recommendations for:•comprehensive treatment using second generation antipsychotic agents continuously for 2-5 years;•early treatment of comorbid substance use;•community treatment after initial contact, during crises and after discharge from hospital;•physical health monitoring and management of comorbidities, particularly metabolic health;•interventions to optimise recovery of social function and return to study or work; and•management of schizophrenia in specific populations and circumstances...
June 19, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28917725/a-computational-approach-for-phenotypic-comparisons-of-cell-populations-in-high-dimensional-cytometry-data
#18
Ludovic Platon, David Pejoski, Guillaume Gautreau, Brice Targat, Roger Le Grand, Anne-Sophie Beignon, Nicolas Tchitchek
BACKGROUND: Cytometry is an experimental technique used to measure molecules expressed by cells at a single cell resolution. Recently, several technological improvements have made possible to increase greatly the number of cell markers that can be simultaneously measured. Many computational methods have been proposed to identify clusters of cells having similar phenotypes. Nevertheless, only a limited number of computational methods exist to compare the phenotypes of the cell clusters identified by different clustering approaches...
September 13, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28915754/modeling-the-mechanism-of-cln025-beta-hairpin-formation
#19
Keri A McKiernan, Brooke E Husic, Vijay S Pande
Beta-hairpins are substructures found in proteins that can lend insight into more complex systems. Furthermore, the folding of beta-hairpins is a valuable test case for benchmarking experimental and theoretical methods. Here, we simulate the folding of CLN025, a miniprotein with a beta-hairpin structure, at its experimental melting temperature using a range of state-of-the-art protein force fields. We construct Markov state models in order to examine the thermodynamics, kinetics, mechanism, and rate-determining step of folding...
September 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28914116/defining-a-core-outcome-set-for-adolescent-and-young-adult-patients-with-a-spinal-deformity
#20
Marinus de Kleuver, Sayf S A Faraj, Roderick M Holewijn, Niccole M Germscheid, Raphael D Adobor, Mikkel Andersen, Hans Tropp, Benny Dahl, Heli Keskinen, Anders Olai, David W Polly, Miranda L van Hooff, Tsjitske M Haanstra
Background and purpose - Routine outcome measurement has been shown to improve performance in several fields of healthcare. National spine surgery registries have been initiated in 5 Nordic countries. However, there is no agreement on which outcomes are essential to measure for adolescent and young adult patients with a spinal deformity. The aim of this study was to develop a core outcome set (COS) that will facilitate benchmarking within and between the 5 countries of the Nordic Spinal Deformity Society (NSDS) and other registries worldwide...
September 15, 2017: Acta Orthopaedica
keyword
keyword
63911
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"