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https://www.readbyqxmd.com/read/28092924/evaluation-of-the-use-of-rotational-thromboelastometry-in-the-assessment-of-fxi-deficency
#1
G N Pike, A M Cumming, J Thachil, C R M Hay, P H B Bolton-Maggs, J Burthem
INTRODUCTION: The absence of a reliable clinical test to predict bleeding tendency leaves factor XI (FXI)-deficient individuals at risk of overtreatment or under treatment. AIM: To assess whether rotational thromboelastometry has value in detection of FXI deficiency and identification of bleeding tendency. METHODS: Thromboelastometry was measured in whole blood and platelet-rich plasma (PRP) samples containing corn trypsin inhibitor (CTI) from controls (n = 50) and FXI-deficient individuals (n = 93) at tissue factor (TF) 0...
January 16, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28092856/separation-of-antibody-drug-conjugate-species-by-rplc-a-generic-method-development-approach
#2
Szabolcs Fekete, Imre Molnár, Davy Guillarme
This study reports the use of modelling software for the successful method development of IgG1 cysteine conjugated antibody drug conjugate (ADC) in RPLC. The goal of such a method is to be able to calculate the average drug to antibody ratio (DAR) of and ADC product. A generic method development strategy was proposed including the optimization of mobile phase temperature, gradient profile and mobile phase ternary composition. For the first time, a 3D retention modelling was presented for large therapeutic protein...
January 11, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28092838/development-and-validation-of-the-stigma-scale-for-epilepsy-in-turkey
#3
Sevim Baybaş, Zerrin Yıldırım, Harika Ertem Özhan, Ayten Dirican, Ahmet Dirican
OBJECTIVE: Epilepsy is a chronic disease with an increased risk of stigma. The aim of this study was to investigate the efficacy of a scale developed by the authors to determine the level of stigma in Turkish patients with epilepsy and their relatives. METHODS: In this pilot study, two scales were developed, one consisting of 32 questions for the patients and one of 20 questions for the patients' relatives. Initially, a total of 30 patients with epilepsy and 30 relatives of the patients were included...
January 13, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28092800/effect-of-venepuncture-process-design-on-efficiency-and-failure-rates-a-simulation-model-study-for-secondary-care
#4
Sean Reed, Rasa Remenyte-Prescott, Ben Rees
BACKGROUND: Healthcare aims to deliver good patient outcomes. For many clinical procedures there are multiple alternative task sequences that can be performed. These deviations can influence procedure reliability, efficiency of usage of hospital resources and risk to staff and patient safety. Venepuncture is one of the most common invasive procedures in healthcare. Literature of clinical practice shows evidence of wide variability in the procedure order and the duration of each step, which can depend on attributes, such as patient health, sampling method and staff skills...
December 29, 2016: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28092789/facial-emotion-recognition-among-typically-developing-young-children-a-psychometric-validation-of-a-subset-of-nimstim-stimuli
#5
Lucy Barnard-Brak, Layla Abby, David M Richman, Steven Chesnut
We evaluated the psychometric properties of NimStim taking into account the effects of chronological age on the ability of typically developing young children (aged 2-6 years old) to recognize basic facial expressions (i.e., happy, sad, angry, and fearful). We also examined the psychometric sufficiency of NimStim under race-matched and -mismatched facial emotion stimuli. In the current study, race-matched stimuli referred to when children with African American backgrounds received African American faces to rate their emotions and vice versa for race-mismatched stimuli...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28092776/periosteum-tissue-engineering-in-an-orthotopic-in%C3%A2-vivo-platform
#6
J G Baldwin, F Wagner, L C Martine, B M Holzapfel, C Theodoropoulos, O Bas, F M Savi, C Werner, E M De-Juan-Pardo, D W Hutmacher
The periosteum plays a critical role in bone homeostasis and regeneration. It contains a vascular component that provides vital blood supply to the cortical bone and an osteogenic niche that acts as a source of bone-forming cells. Periosteal grafts have shown promise in the regeneration of critical size defects, however their limited availability restricts their widespread clinical application. Only a small number of tissue-engineered periosteum constructs (TEPCs) have been reported in the literature. A current challenge in the development of appropriate TEPCs is a lack of pre-clinical models in which they can reliably be evaluated...
November 20, 2016: Biomaterials
https://www.readbyqxmd.com/read/28092680/utilizing-somatic-mutation-data-from-numerous-studies-for-cancer-research-proof-of-concept-and-applications
#7
D Amar, S Izraeli, R Shamir
Large cancer projects measure somatic mutations in thousands of samples, gradually assembling a catalog of recurring mutations in cancer. Many methods analyze these data jointly with auxiliary information with the aim of identifying subtype-specific results. Here, we show that somatic gene mutations alone can reliably and specifically predict cancer subtypes. Interpretation of the classifiers provides useful insights for several biomedical applications. We analyze the COSMIC database, which collects somatic mutations from The Cancer Genome Atlas (TCGA) as well as from many smaller scale studies...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28092641/performance-characterization-of-a-novel-electronic-number-connection-test-to-detect-minimal-hepatic-encephalopathy-in-cirrhotic-patients
#8
Tilo Wuensch, Darius Ferenc Ruether, Caroline Zöllner, Tobias Mueller, Tobias Jung, Magnus Kaffarnik, Ursula Kassner, Eckart Schott, Stephan Kiefer, Johann Pratschke, Martin Stockmann, Maximilian Jara
BACKGROUND AND AIM: Hepatic encephalopathy (HE) is a frequent complication of cirrhosis, characterized by cognitive deficits that negatively impact patients' quality of life. The mild, minimal hepatic encephalopathy (mHE) can only be detected by psychometric tests and early mHE detection can prevent more severe complications or even survival times. Here, we aimed to investigate the feasibility and validity of the novel-developed electronic number connection test (eNCT), which is designed as a fast and easy-to-perform mHE patient self-test...
January 12, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28092571/machine-learned-replacement-of-n-labels-for-basecalled-sequences-in-dna-barcoding
#9
Eddie Ma, Sujeevan Ratnasingham, Stefan Kremer
This study presents a machine learning method that increases the number of identified bases in Sanger Sequencing. The system post-processes a KB basecalled chromatogram. It selects a recoverable subset of N-labels in the KB-called chromatogram to replace with basecalls (A,C,G,T). An N-label correction is defined given an additional read of the same sequence, and a human finished sequence. Corrections are added to the dataset when an alignment determines the additional read and human agree on the identity of the N-label...
August 11, 2016: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28092556/study-of-saliency-in-objective-video-quality-assessment
#10
Wei Zhang, Hantao Liu
Reliably predicting video quality as perceived by humans remains challenging and is of high practical relevance. A significant research trend is to investigate visual saliency and its implications for video quality assessment. Fundamental problems regarding how to acquire reliable eye-tracking data for the purpose of video quality research and how saliency should be incorporated in objective video quality metrics (VQMs) are largely unsolved. In this paper, we propose a refined methodology for reliably collecting eye-tracking data, which essentially eliminates bias induced by each subject having to view multiple variations of the same scene in a conventional experiment...
January 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28092524/code-coherence-based-decision-boundaries-for-feature-correspondence
#11
Wen-Yan Lin, Fan Wang, Ming-Ming Cheng, Sai-Kit Yeung, Philip H S Torr, Minh N Do, Jiangbo Lu
A key challenge in feature correspondence is the difficulty in differentiating true and false matches at a local descriptor level. This forces adoption of strict similarity thresholds that discard many true matches. However, if analyzed at a global level, false matches are usually randomly scattered while true matches tend to be coherent (clustered around a few dominant motions), thus creating a coherence based separability constraint. This paper proposes a non-linear regression technique that can discover such a coherence based separability constraint from highly noisy matches and embed it into a correspondence likelihood model...
January 16, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28092510/unobtrusive-and-wearable-systems-for-automatic-dietary-monitoring
#12
Temiloluwa Prioleau, Elliot Moore, Maysam Ghovanloo
The threat of obesity, diabetes, anorexia and bulimia in our society today has motivated extensive research on dietary monitoring. Standard self-report methods such as 24-hour recall and food frequency questionnaires are expensive, burdensome and unrealiable to handle the growing health crisis. Long-term activity monitoring in daily living is a promising approach to provide individuals with quantitative feedback that can encourage healthier habits. Although several studies have attempted automating dietary monitoring using wearable, hand-held, smartobject, and environmental systems, it remains an open research problem...
January 16, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28092504/wall-shear-rate-measurement-validation-of-a-new-method-through-multiphysics-simulations
#13
Stefano Ricci, Abigail Swillens, Alessandro Ramalli, Patrick Segers, Piero Tortoli
Wall shear stress is known to affect the vessel endothelial function and to be related to important pathologies like the development of atherosclerosis. It is defined as the product of the blood viscosity by the blood velocity gradient at the wall position, i.e., the wall shear rate (WSR). The WSR measurement is particularly challenging in important cardiovascular sites, like the carotid bifurcation, because of the related complex flow configurations characterized by high spatial and temporal gradients, wall movement, and clutter noise...
January 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28092436/single-upconversion-nanoparticle-bacterium-cotrapping-for-single-bacterium-labeling-and-analysis
#14
Hongbao Xin, Yuchao Li, Dekang Xu, Yueli Zhang, Chia-Hung Chen, Baojun Li
Detecting and analyzing pathogenic bacteria in an effective and reliable manner is crucial for the diagnosis of acute bacterial infection and initial antibiotic therapy. However, the precise labeling and analysis of bacteria at the single-bacterium level are a technical challenge but very important to reveal important details about the heterogeneity of cells and responds to environment. This study demonstrates an optical strategy for single-bacterium labeling and analysis by the cotrapping of single upconversion nanoparticles (UCNPs) and bacteria together...
January 16, 2017: Small
https://www.readbyqxmd.com/read/28092392/the-in-silico-identification-of-human-bile-salt-export-pump-abcb11-inhibitors-associated-with-cholestatic-drug-induced-liver-injury
#15
Lili Xi, Jia Yao, Yuhui Wei, Xin'an Wu, Xiaojun Yao, Huanxiang Liu, Shuyan Li
Drug-induced liver injury (DILI) is one of the major causes of drug attrition and failure. Currently, there is increasing evidence that direct inhibition of the human bile salt export pump (BSEP/ABCB11) by drugs and/or metabolites is one of the most important mechanisms of cholestatic DILI. In the present study, we employ two in silico methods, random forest (RF) and the pharmacophore method, to recognize potential BSEP inhibitors that could cause cholestatic DILI, with the aim of mitigating the risk of cholestatic DILI to some extent...
January 16, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28092387/two-dimensional-c12mn2-c12cr2-as-a-room-temperature-half-metal-antiferromagnetic-semiconductor-a-systematic-study
#16
Zheng-Zhe Lin
Ferromagnetism in half-metallic two-dimensional (2D) materials can lead to unique spintronics applications. In this paper, we report first-principle calculations that predict 2D single-layer C12Mn2 as a ferromagnetic half metal, and 2D single-layer C12Cr2 as an antiferromagnetic semiconductor. A systematic study is carried out to demonstrate the reliability of our research. We employ a bottom-up method to investigate the structural and magnetic stability of single, two and more Cr or Mn atoms on graphyne at room temperature...
January 16, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28092358/recurrent-rna-motifs-as-scaffolds-for-genetically-encodable-small-molecule-biosensors
#17
Ely B Porter, Jacob T Polaski, Makenna M Morck, Robert T Batey
Allosteric RNA devices are increasingly being viewed as important tools capable of monitoring enzyme evolution, optimizing engineered metabolic pathways, facilitating gene discovery and regulators of nucleic acid-based therapeutics. A key bottleneck in the development of these platforms is the availability of small-molecule-binding RNA aptamers that robustly function in the cellular environment. Although aptamers can be raised against nearly any desired target through in vitro selection, many cannot easily be integrated into devices or do not reliably function in a cellular context...
January 16, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28092227/the-reliability-of-the-extra-load-index-as-a-measure-of-relative-load-carriage-economy
#18
Sean Hudson, Carlton Cooke, Ray Lloyd
The aim of this study was to measure the reliability of the Extra Load Index (ELI) as a method for assessing relative load carriage economy. Seventeen volunteers (12 males, 5 females) performed walking trials at 3 km(.)h(-1), 6 km(.)h(-1) and a self-selected speed. Trial conditions were repeated 7 days later to assess test-retest reliability. Trials involved four, four-minute periods of walking, each separated by 5 minutes of rest. The initial stage was performed unloaded followed in a randomised order by a second unloaded period and walking with backpacks of 7kg and 20kg...
January 16, 2017: Ergonomics
https://www.readbyqxmd.com/read/28092217/development-construct-validity-and-test-retest-reliability-of-a-field-based-wheelchair-mobility-performance-test-for-wheelchair-basketball
#19
Annemarie M H de Witte, Marco J M Hoozemans, Monique A M Berger, Rienk M A van der Slikke, Lucas H V van der Woude, Dirkjan H E J Veeger
The aim of this study was to develop and describe a wheelchair mobility performance test in wheelchair basketball and to assess its construct validity and reliability. To mimic mobility performance of wheelchair basketball matches in a standardised manner, a test was designed based on observation of wheelchair basketball matches and expert judgement. Forty-six players performed the test to determine its validity and 23 players performed the test twice for reliability. Independent-samples t-tests were used to assess whether the times needed to complete the test were different for classifications, playing standards and sex...
January 16, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28092202/is-dna-testing-for-hemochromatosis-diagnosis-reliable
#20
Paul C Adams
No abstract text is available yet for this article.
January 16, 2017: Expert Review of Molecular Diagnostics
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