keyword
MENU ▼
Read by QxMD icon Read
search

invalidity

keyword
https://www.readbyqxmd.com/read/29346621/assessing-polymyalgia-rheumatica-activity-when-c-reactive-protein-is-unavailable-or-uninterpretable
#1
Valérie Devauchelle-Pensec, Lea Saraux, Jean Marie Berthelot, Michel De Bandt, Divi Cornec, Dewi Guellec, Thierry Marhadour, Sandrine Jousse-Joulin, Maelenn Gouillou, Alain Saraux
Objective: The PMR activity score (PMR-AS) includes the CRP value, which may be lacking or invalid owing to anti-IL-6 therapy. Our objective was to develop alternatives to PMR-AS that do not require CRP. Methods: We used the Club Rhumatisme et Inflammation (CRI; 89 patients with PMR) and the Tolerance and Efficacy of tocilizumab iN pOlymyalgia Rheumatica (TENOR; 20 patients with recent-onset PMR naive to glucocorticoid who received three tocilizumab infusions, at weeks 0, 4 and 8, followed by prednisone from weeks 12 to 24) cohorts...
January 15, 2018: Rheumatology
https://www.readbyqxmd.com/read/29345192/cross-validation-of-the-dot-counting-test-in-a-large-sample-of-credible-and-non-credible-patients-referred-for-neuropsychological-testing
#2
Courtney McCaul, Kyle B Boone, Annette Ermshar, Maria Cottingham, Tara L Victor, Elizabeth Ziegler, Michelle A Zeller, Matthew Wright
OBJECTIVE: To cross-validate the Dot Counting Test in a large neuropsychological sample. METHOD: Dot Counting Test scores were compared in credible (n = 142) and non-credible (n = 335) neuropsychology referrals. RESULTS: Non-credible patients scored significantly higher than credible patients on all Dot Counting Test scores. While the original E-score cut-off of ≥17 achieved excellent specificity (96.5%), it was associated with mediocre sensitivity (52...
January 18, 2018: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/29343936/the-conclusions-are-unsupported-by-the-data-are-based-on-invalid-analyses-are-incorrect-and-should-be-corrected-letter-regarding-sleep-quality-and-body-composition-variations-in-obese-male-adults-after-14-weeks-of-yoga-intervention-a-randomized-controlled-trial
#3
https://www.readbyqxmd.com/read/29341641/simultaneous-deep-tunneling-and-classical-hopping-for-hydrogen-diffusion-on-metals
#4
Wei Fang, Jeremy O Richardson, Ji Chen, Xin-Zheng Li, Angelos Michaelides
Hydrogen diffusion on metals exhibits rich quantum behavior, which is not yet fully understood. Using simulations, we show that many hydrogen diffusion barriers can be categorized into those with parabolic tops and those with broad tops. With parabolic-top barriers, hydrogen diffusion evolves gradually from classical hopping, to shallow tunneling, to deep tunneling as the temperature (T) decreases, and noticeable quantum effects persist at moderate T. In contrast, with broad-top barriers quantum effects become important only at low T and the classical-to-quantum transition is sharp, at which classical hopping and deep tunneling both occur...
September 22, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29341177/prevalence-of-antinuclear-and-anti-erythrocyte-antibodies-in-healthy-cats
#5
Anthony C G Abrams-Ogg, Sophia Lim, Helen Kocmarek, Kim Ho, Shauna L Blois, Patricia E Shewen, R Darren Wood, Dorothee Bienzle
BACKGROUND: Positive antinuclear antibody and direct antiglobulin tests support diagnoses such as systemic lupus erythematosus and immune-mediated anemia, respectively. Positive tests may occur in cats, but the prevalence of positive results in healthy cats is not well known. OBJECTIVE: The study's purpose was to determine prevalences of positive antinuclear antibody and direct antiglobulin tests in healthy cats. METHODS: Antinuclear antibody titers were measured by indirect immunofluorescence, and anti-erythrocyte antibodies were measured by the microtitration direct antiglobulin test at 37, 23, and 4°C in 61 client-owned and 28 facility-owned cats...
January 17, 2018: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/29332733/a-fundamental-critique-of-the-fascial-distortion-model-and-its-application-in-clinical-practice
#6
Christoph Thalhamer
INTRODUCTION: The therapeutic techniques used in the fascial distortion model (FDM) have become increasingly popular among manual therapists and physical therapists. The reasons for this trend remain to be empirically explored. Therefore this paper pursues two goals: first, to investigate the historical and theoretical background of FDM, and second, to discuss seven problems associated with the theory and practice of FDM. MATERIALS AND METHODS: The objectives of this paper are based on a review of the literature...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29331318/developmental-changes-in-the-feedback-related-negativity-from-8-to-14%C3%A2-years
#7
Yael Arbel, Kayleigh N McCarty, Mark Goldman, Emanuel Donchin, Ty Brumback
The study examined age related changes in the magnitude of the Feedback Related Negativity (FRN) in 8-14 year old children performing a variation of a Go/No-Go task. Participants were presented with four stimuli and tasked with mapping each of them either to a response or to a "no response" by trial and error guided by feedback. Feedback was valid for two stimuli (Go and No-Go) and invalid (.5 positive; .5 negative feedback) for the other two stimuli. The amplitude of the FRN was evaluated as a function of age separately for Go and No-Go trials...
January 10, 2018: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29330763/safe-and-sensible-preprocessing-and-baseline-correction-of-pupil-size-data
#8
Sebastiaan Mathôt, Jasper Fabius, Elle Van Heusden, Stefan Van der Stigchel
Measurement of pupil size (pupillometry) has recently gained renewed interest from psychologists, but there is little agreement on how pupil-size data is best analyzed. Here we focus on one aspect of pupillometric analyses: baseline correction, i.e., analyzing changes in pupil size relative to a baseline period. Baseline correction is useful in experiments that investigate the effect of some experimental manipulation on pupil size. In such experiments, baseline correction improves statistical power by taking into account random fluctuations in pupil size over time...
January 12, 2018: Behavior Research Methods
https://www.readbyqxmd.com/read/29329307/response-time-scores-on-a-reflexive-attention-task-predict-a-child-s-inattention-score-from-a-parent-report
#9
Rebecca A Lundwall, Jordan F Sgro, Julia Fanger
Compared to sustained attention, only a small proportion of studies examine reflexive attention as a component of everyday attention. Understanding the significance of reflexive attention to everyday attention may inform better treatments for attentional disorders. Children from a general population (recruited when they were from 9-16 years old) completed an exogenously-cued task measuring the extent to which attention is captured by peripheral cue-target conditions. Parents completed a questionnaire reporting their child's day-to-day attention...
2018: PloS One
https://www.readbyqxmd.com/read/29324498/five-steps-to-successfully-implement-and-evaluate-propensity-score-matching-in-clinical-research-studies
#10
Steven J Staffa, David Zurakowski
In clinical research, the gold standard level of evidence is the randomized controlled trial (RCT). The availability of nonrandomized retrospective data is growing; however, a primary concern of analyzing such data is comparability of the treatment groups with respect to confounding variables. Propensity score matching (PSM) aims to equate treatment groups with respect to measured baseline covariates to achieve a comparison with reduced selection bias. It is a valuable statistical methodology that mimics the RCT, and it may create an "apples to apples" comparison while reducing bias due to confounding...
January 9, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29323420/on-the-influence-of-lipid-induced-optical-anisotropy-for-the-bioimaging-of-exo-or-endocytosis-with-interference-microscopic-imaging
#11
D Marques, A Miranda, A G Silva, P R T Munro, P A A DE Beule
Some implementations of interference microscopy imaging use digital holographic measurements of complex scattered fields to reconstruct three-dimensional refractive index maps of weakly scattering, semi-transparent objects, frequently encountered in biological investigations. Reconstruction occurs through application of the object scattering potential which assumes an isotropic refractive index throughout the object. Here, we demonstrate that this assumption can in some circumstances be invalid for biological imaging due to the presence of lipid-induced optical anisotropy...
January 11, 2018: Journal of Microscopy
https://www.readbyqxmd.com/read/29320504/evaluation-of-the-practicability-and-virological-performance-of-finger-stick-whole-blood-hiv-self-testing-in-french-speaking-sub-saharan-africa
#12
Serge Tonen-Wolyec, Salomon Batina-Agasa, Jérémie Muwonga, Franck Fwamba N'kulu, Ralph-Sydney Mboumba Bouassa, Laurent Bélec
BACKGROUND: Opportunities for HIV testing could be enhanced by offering HIV self-testing (HIVST) in populations that fear stigma and discrimination when accessing conventional HIV counselling and testing in health care facilities. Field experience with HIVST has not yet been reported in French-speaking African countries. METHODS: The practicability of HIVST was assessed using the prototype the Exacto® Test HIV (Biosynex, Strasbourg, France) self-test in 322 adults living in Kisangani and Bunia, Democratic Republic of the Congo, according to World Health Organization's recommendations...
2018: PloS One
https://www.readbyqxmd.com/read/29320418/analysis-of-an-abe-scheme-with-verifiable-outsourced-decryption
#13
Yongjian Liao, Yichuan He, Fagen Li, Shaoquan Jiang, Shijie Zhou
Attribute-based encryption (ABE) is a popular cryptographic technology to protect the security of users' data in cloud computing. In order to reduce its decryption cost, outsourcing the decryption of ciphertexts is an available method, which enables users to outsource a large number of decryption operations to the cloud service provider. To guarantee the correctness of transformed ciphertexts computed by the cloud server via the outsourced decryption, it is necessary to check the correctness of the outsourced decryption to ensure security for the data of users...
January 10, 2018: Sensors
https://www.readbyqxmd.com/read/29318665/ternary-system-with-controlled-structure-a-new-strategy-toward-efficient-organic-photovoltaics
#14
Pei Cheng, Rui Wang, Jingshuai Zhu, Wenchao Huang, Sheng-Yung Chang, Lei Meng, Pengyu Sun, Hao-Wen Cheng, Meng Qin, Chenhui Zhu, Xiaowei Zhan, Yang Yang
Recently, a new type of active layer with a ternary system has been developed to further enhance the performance of binary system organic photovoltaics (OPV). In the ternary OPV, almost all active layers are formed by simple ternary blend in solution, which eventually leads to the disordered bulk heterojunction (BHJ) structure after a spin-coating process. There are two main restrictions in this disordered BHJ structure to obtain higher performance OPV. One is the isolated second donor or acceptor domains. The other is the invalid metal-semiconductor contact...
January 10, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29315846/linc00511-interacts-with-mir-765-and-modulates-tongue-squamous-cell-carcinoma-progression-by-targeting-lamc2
#15
Junhai Ding, Changxi Yang, Sen Yang
BACKGROUND: Aimed at underlying the molecular regulatory mechanism and overall biological functions of LINC00511 in tongue squamous cell carcinoma (TSCC). METHODS: The expression level of LINC00511 was examined by QRT-PCR. In particular, Tca-8113 cell line was selected for subsequent experiments, in which the expression level of LINC00511 was the most significant. Meanwhile, the effects of LINC00511 on cells proliferation, cell cycle distribution and invasion of TSCC cells were explored using RNA knockdown tools with CCK-8, flow cytometry analysis, colony formation and transwell assay...
January 9, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29306742/phloem-networks-in-leaves
#16
REVIEW
Mónica R Carvalho, Juan M Losada, Karl J Niklas
The survival of all vascular plants depends on phloem and xylem, which comprise a hydraulically coupled tissue system that transports photosynthates, water, and a variety of other molecules and ions. Although xylem hydraulics has been extensively studied, until recently, comparatively little is known quantitatively about the phloem hydraulic network and how it is functionally coupled to the xylem network, particularly in photosynthetic leaves. Here, we summarize recent advances in quantifying phloem hydraulics in fully expanded mature leaves with different vascular architectures and show that (1) the size of phloem conducting cells across phylogenetically different taxa scales isometrically with respect to xylem conducting cell size, (2) cell transport areas and lengths increase along phloem transport pathways in a manner that can be used to model Münch's pressure-flow hypothesis, and (3) report observations that invalidate da Vinci's and Murray's hydraulic models as plausible constructs for understanding photosynthate transport in the leaf lamina...
January 4, 2018: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/29305304/sleeve-gastrectomy-surgery-when-2-alcoholic-drinks-are-converted-to-4
#17
María Belén Acevedo, J Christopher Eagon, Bruce D Bartholow, Samuel Klein, Kathleen K Bucholz, Marta Yanina Pepino
BACKGROUND: While it is well established that Roux-en-Y gastric bypass (RYGB) causes a rapid and heightened peak blood alcohol concentration (BAC), results from previous studies on the effects of sleeve gastrectomy (SG) on alcohol pharmacokinetics are conflicting. Data from 2 studies found SG did not affect BAC, whereas another study found SG caused a heightened peak BAC after alcohol ingestion. Moreover, these 3 studies estimated BAC from breathalyzers, which might not reliably estimate peak BAC...
November 10, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/29300905/reply-gnrh-antagonists-vs-long-gnrh-agonists-in-ivf-significant-flaws-in-a-meta-analysis-lead-to-invalid-conclusions
#18
C B Lambalk, F R Banga, J A Huirne, M Toftager, A Pinborg, R Homburg, F van der Veen, M van Wely
No abstract text is available yet for this article.
December 29, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/29300885/gnrh-antagonists-vs-long-gnrh-agonists-in-ivf-significant-flaws-in-a-meta-analysis-lead-to-invalid-conclusions
#19
Efstratios M Kolibianakis, Georg Griesinger, Christos A Venetis
No abstract text is available yet for this article.
December 29, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/29299739/nonlinear-deformation-of-tractography-in-ultrasound-guided-low-grade-gliomas-resection
#20
Yiming Xiao, Live Eikenes, Ingerid Reinertsen, Hassan Rivaz
PURPOSE: In brain tumor surgeries, maximum removal of cancerous tissue without compromising normal brain functions can improve the patient's survival rate and therapeutic benefits. To achieve this, diffusion MRI and intra-operative ultrasound (iUS) can be highly instrumental. While diffusion MRI allows the visualization of white matter tracts and helps define the resection plan to best preserve the eloquent areas, iUS can effectively track the brain shift after craniotomy that often renders the pre-surgical plan invalid, ensuring the accuracy and safety of the intervention...
January 3, 2018: International Journal of Computer Assisted Radiology and Surgery
keyword
keyword
87025
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"