keyword
MENU ▼
Read by QxMD icon Read
search

Performance validity tests

keyword
https://www.readbyqxmd.com/read/29793134/voxel-based-automated-detection-of-focal-cortical-dysplasia-lesions-using-diffusion-tensor-imaging-and-t2-weighted-mri-data
#1
Yanming Wang, Yawen Zhou, Huijuan Wang, Jin Cui, Benedictor Alexander Nguchu, Xufei Zhang, Bensheng Qiu, Xiaoxiao Wang, Mingwang Zhu
The aim of this study was to automatically detect focal cortical dysplasia (FCD) lesions in patients with extratemporal lobe epilepsy by relying on diffusion tensor imaging (DTI) and T2-weighted magnetic resonance imaging (MRI) data. We implemented an automated classifier using voxel-based multimodal features to identify gray and white matter abnormalities of FCD in patient cohorts. In addition to the commonly used T2-weighted image intensity feature, DTI-based features were also utilized. A Gaussian processes for machine learning (GPML) classifier was tested on 12 patients with FCD (8 with histologically confirmed FCD) scanned at 1...
May 21, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29793125/assessment-of-cam-morphology-of-the-hip-with-ultra-sound-imaging-by-physical-therapists-is-reliable-and-valid
#2
Liliane Mandema, Igor Tak, Brigitte Mooij, Ruud Groeneweg, Eric Bakker, Peter van Veldhoven
BACKGROUND: Femoroacetabular impingement syndrome is considered present when a combination of clinical symptoms, signs and morphological features of the hip co-exist. Imaging is increasingly popular in primary health care settings with physical therapists performing ultrasound (US). OBJECTIVE: The aim of this study was to assess the diagnostic accuracy and inter-rater reliability of ultrasound in determining presence of cam morphology. DESIGN: A concurrent validity and inter-rater reliability study...
April 14, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29793078/comparison-of-performance-based-assessment-and-real-world-skill-in-people-with-serious-mental-illness-ecological-validity-of-the-test-of-grocery-shopping-skills
#3
Laura A Faith, Melisa V Rempfer
Valid functional measures are essential for clinical and research efforts that address recovery and community functioning in people with serious mental illness. Although there is a great deal of interest in functional assessment, there is limited research supporting how well current evaluation methods provide a true assessment of real world functioning or naturalistic behavior. To address this gap in the literature, the present study examined the performance of individuals with serious mental illness (i.e., diagnosis of schizophrenia-spectrum, bipolar disorder, or other depression/anxiety diagnoses and accompanying functional disability) on the Test of Grocery Shopping Skills (TOGSS), a performance-based naturalistic task...
May 7, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29792967/validated-reverse-phase-hplc-diode-array-method-for-the-quantification-of-intact-bevacizumab-infliximab-and-trastuzumab-for-long-term-stability-study
#4
Antonio Martínez-Ortega, Agustín Herrera, Antonio Salmerón-García, José Cabeza, Luis Cuadros-Rodríguez, Natalia Navas
The aim of the present study was to develop suitable and reliable method for quantification three of the most worldwide used therapeutic monoclonal antibodies (mAbs) -bevazizumab (BVZ), infliximab (INF) and trastuzumab (TTZ)- to be used in long-term stability studies. Reverse phase (RP) was selected by its greater sensibility and reproducibility comparing with other chromatographic modes. Then a high performance liquid chromatography with diode array detection (RP)HPLC/DAD method was checked. Since the three mAbs represent the active ingredient in the medicines in which they are formulated, the selected method was validated for each one in accordance with the International Conference on Harmonization (ICH) guidelines for pharmaceuticals for human use...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792883/plasma-n-glycan-signatures-associate-with-features-of-inflammatory-bowel-diseases
#5
Florent Clerc, Mislav Novokmet, Viktoria Dotz, Karli R Reiding, Noortje de Haan, Guinevere S M Kammeijer, Hans Dalebout, Marco R Bladergroen, Frano Vukovic, Erdmann Rapp, Stephan R Targan, Gildardo Barron, Natalia Manetti, Anna Latiano, Dermot P B McGovern, Vito Annese, Gordan Lauc, Manfred Wuhrer
BACKGROUND & AIMS: Biomarkers are needed for early detection of Crohn's disease (CD) and ulcerative colitis (UC) or to predict patient outcomes. Glycosylation is a common and complex post-translational modification of proteins that affects their structure and activity. We compared plasma N-glycosylation profiles between patients with CD or UC and healthy individuals (controls). METHODS: We analyzed the total plasma N-glycomes of 2635 patients with inflammatory bowel diseases and 996 controls by mass spectrometry with a linkage-specific sialic acid derivatization technique...
May 21, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29792504/measurement-invariance-of-tgmd-3-in-children-with-and-without-mental-and-behavioral-disorders
#6
Daniele Magistro, Giovanni Piumatti, Fabio Carlevaro, Lauren B Sherar, Dale W Esliger, Giulia Bardaglio, Francesca Magno, Massimiliano Zecca, Giovanni Musella
This study evaluated whether the Test of Gross Motor Development 3 (TGMD-3) is a reliable tool to compare children with and without mental and behavioral disorders across gross motor skill domains. A total of 1,075 children (aged 3-11 years), 98 with mental and behavioral disorders and 977 without (typically developing), were included in the analyses. The TGMD-3 evaluates fundamental gross motor skills of children across two domains: locomotor skills and ball skills. Two independent testers simultaneously observed children's performances (agreement over 95%)...
May 24, 2018: Psychological Assessment
https://www.readbyqxmd.com/read/29792473/cognitive-and-affective-associations-with-an-ecologically-valid-test-of-theory-of-mind-across-the-lifespan
#7
Emilie Johansson Nolaker, Kim Murray, Francesca Happé, Rebecca A Charlton
OBJECTIVES: Many studies have demonstrated that theory of mind (ToM) ability declines with increasing age. Research has found that ToM-age associations are often mediated by other cognitive abilities particularly executive function. However, older adults rarely complain about real-world ToM difficulties. It has been suggested that older adults may perform better in real-world situations compared with experimental settings. METHOD: We examined performance on the Strange Stories Film Task (SSFT) which has been designed to assess ToM using naturalistic, video scenarios...
May 24, 2018: Neuropsychology
https://www.readbyqxmd.com/read/29792299/a-simple-evidence-based-approach-to-help-guide-diagnosis-of-heart-failure-with-preserved-ejection-fraction
#8
Yogesh N V Reddy, Rickey E Carter, Masaru Obokata, Margaret M Redfield, Barry A Borlaug
Background -Diagnosis of heart failure with preserved ejection fraction (HFpEF) is challenging in euvolemic patients with dyspnea, and no evidence-based criteria are available. We sought to develop and then validate non-invasive diagnostic criteria that could be used to estimate the likelihood that HFpEF is present among patients with unexplained dyspnea in order to guide further testing. Methods -Consecutive patients with unexplained dyspnea referred for invasive hemodynamic exercise testing were retrospectively evaluated...
May 23, 2018: Circulation
https://www.readbyqxmd.com/read/29791812/automated-oestrus-detection-using-multimetric-behaviour-recognition-in-seasonal-calving-dairy-cattle-on-pasture
#9
J Brassel, F Rohrssen, K Failing, A Wehrend
AIM: To evaluate the performance of a novel accelerometer-based oestrus detection system (ODS) for dairy cows on pasture, in comparison with measurement of concentrations of progesterone in milk, ultrasonographic examination of ovaries and farmer observations. METHODS: Mixed-breed lactating dairy cows (n=109) in a commercial, seasonal-calving herd managed at pasture under typical farming conditions in Ireland, were fitted with oestrus detection collars 3 weeks prior to mating start date...
May 23, 2018: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/29791671/validation-of-a-moral-distress-instrument-in-nurses-of-primary-health-care
#10
Priscila Orlandi Barth, Flávia Regina Souza Ramos, Edison Luiz Devos Barlem, Graziele de Lima Dalmolin, Dulcinéia Ghizoni Schneider
OBJECTIVE: to validate an instrument to identify situations that trigger moral distress in relation to intensity and frequency in primary health care nurses. METHOD: this is a methodological study carried out with 391 nurses of primary health care, applied to the Brazilian Scale of Moral Distress in Nurses with 57 questions. Validation for primary health care was performed through expert committee evaluation, pre-test, factorial analysis, and Cronbach's alpha. RESULTS: there were 46 questions validated divided into six constructs: Health Policies, Working Conditions, Nurse Autonomy, Professional ethics, Disrespect to patient autonomy and Work Overload...
2018: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/29791322/a-low-complexity-algorithm-for-detection-of-atrial-fibrillation-using-the-ecg
#11
Nadi Sadr, Madhuka Jayawardhana, Thuy T Pham, Rui Tang, Asghar Tabatabaei Balaei, Philip de Chazal
We present a method for automatic processing of single lead electrocardiogram (ECG) with duration of up to 60 seconds for the detection of atrial fibrillation (AF). The method categorises an ECG recording into one of four categories: Normal, AF, Other and Noisy rhythm. 8,528 scored ECG signals were used for training the classification model and 3,658 scored ECG signals were used for an independent performance assessment. Our method was based on features derived from RR interbeat intervals. The features included time domain, frequency domain and distribution features...
May 23, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29791148/protein-folding-free-energy-landscape-along-the-committor-the-optimal-folding-coordinate
#12
Sergei V Krivov
Recent advances in simulation and experiment have led to dramatic increases in the quantity and complexity of produced data, which makes the development of automated analysis tools very important. A powerful approach to analyze dynamics contained in such datasets is to describe/approximate it by diffusion on a free energy landscape - free energy as a function of reaction coordinates (RC). For the description to be quantitatively accurate RCs should be chosen in an optimal way. Recent theoretical results show that such an optimal RC exists, however determining it for practical systems is a very difficult unsolved problem...
May 23, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29791052/high-performance-liquid-chromatography-quantification-of-enantiomers-of-a-dihydroxylated-tetrahydrofuran-natural-product
#13
Ke Li, Skye D Fissette, Tyler J Buchinger, Zoe E Middleton, Alistair Boyer, Weiming Li
Both enantiomers of petromyroxol are putative pheromones in sea lamprey (Petromyzon marinus). Here, we describe the separation and quantification of the petromyroxol enantiomers using high-performance liquid chromatography tandem mass spectrometry. The separation was tested on a wide range of chiral columns with normal phases, and effects of the chromatographic parameters such as mobile phase and temperature on the separation were optimized. The AD-H column showed the best separation of enantiomers with n-hexane and ethanol as the mobile phase...
May 23, 2018: Chirality
https://www.readbyqxmd.com/read/29791029/development-of-a-3d-ultrasound-guidance-system-for-permanent-breast-seed-implantation
#14
Justin Michael, Daniel Morton, Deidre Batchelar, Michelle Hilts, Juanita Crook, Aaron Fenster
PURPOSE: Permanent breast seed implantation (PBSI) is a promising radiotherapy technique for early-stage breast cancer, completed in a single visit by permanently implanting 103 Pd seeds using needles inserted through a template and guided by 2D ultrasound (US). However, operator dependence has been highlighted as a limitation of this procedure. Consequently, we propose and have developed an intraoperative guidance system using 3D US and an instrumented mechanical arm to provide intraoperative 3D imaging and needle template tracking...
May 23, 2018: Medical Physics
https://www.readbyqxmd.com/read/29790690/validation-of-the-portuguese-version-of-addenbrooke-s-cognitive-examination-iii-in-mild-cognitive-impairment-and-dementia
#15
Bruno Peixoto, Milene Machado, Patricia Rocha, Carla Macedo, António Machado, Élia Baeta, Gerly Gonçalves, Paulo Pimentel, Emanuela Lopes, Luis Monteiro
BACKGROUND: Cognitive assessment is central to the diagnosis of cognitive impairment and dementia, and it should be performed in all patients in the early stages of the disease. Recently, the 3rd version of Addenbrooke's Cognitive Examination (ACE-III) has been developed in order to improve the previous versions. OBJECTIVES: The aim of this study was to determine the psychometric properties of the Portuguese version of ACE-III, namely: reliability and discriminative validity (sensitivity and specificity) in the identification of mild cognitive impairment (MCI) and dementia, in comparison to other neuropsychological screening tests, as well as to establish its concurrent and divergent validity...
May 16, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790645/fibrinogen-prothrombin-time-derived-method-is-not-useful-in-patients-anticoagulated-with-low-molecular-weight-heparins-or-rivaroxaban
#16
C Duboscq, M Martinuzzo, J M Ceresetto, M Lopez, L Barrera, J Oyhamburu, G Stemmelin
BACKGROUND: Fibrinogen prothrombin time derived method (FIBPT-d) with photo-optical coagulometers is easy and economical. However, there are few reports on the behavior of this test on samples from patients anticoagulated with direct oral anticoagulants (DOACs) or low molecular weight heparin (LMWH). OBJECTIVE: To compare fibrinogen results obtained by Clauss method (FIB C) and FIBPT-d with two thromboplastins in anticoagulated patients. POPULATION: 295 consecutive anticoagulated patients: 99 vitamin K antagonist (VKA), 49 unfractionated heparin (UFH), 47 LMWH, 50 rivaroxaban and 50 dabigatran; and 100 healthy controls (NC)...
May 23, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29790108/the-impact-of-dietary-habits-on-the-pathogenesis-of-rheumatoid-arthritis-a-case-control-study
#17
Masoume Rambod, Mohammadali Nazarinia, Farahnaz Raieskarimian
It has not been clear what kinds and how much nutrients could be harmful, preventive, or healthful for development of rheumatoid arthritis. This study aimed to determine the impact of dietary habits on the pathogenesis of rheumatoid arthritis. This case-control study was conducted on a total of 500 rheumatoid arthritis patients and 500 healthy controls refereed to three clinics of Shiraz University of Medical Sciences in 2015-2016. Convenience sampling was used for data collection in both case and control groups...
May 22, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29790104/beneficial-effects-of-antioxidant-furfuryl-palmitate-in-non-pharmacologic-treatments-prescription-emollient-devices-peds-for-atopic-dermatitis-and-related-skin-disorders
#18
REVIEW
Paolo Daniele Pigatto, Marco Diani
INTRODUCTION: Atopic dermatitis (AD) is a common chronic inflammatory skin disease; it requires long-term treatments focused on symptomatic relief. Current first-line treatments include moisturizers and topical corticosteroids. Recently, topical antioxidants have been added to moisturizer formulations to alleviate mild-to-moderate AD. The aim of this review was to evaluate the efficacy and tolerability of furfuryl palmitate, a new antioxidant molecule, and furfuryl derivatives. METHODS: A PubMed/Google Scholar search was conducted using the term "furfuryl palmitate" (and its derivatives, including AR-GG27® ) combined with "skin," "atopic dermatitis," and "atopic eczema...
May 22, 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/29789691/performance-of-nosas-score-versus-berlin-questionnaire-for-screening-obstructive-sleep-apnoea-in-patients-with-resistant-hypertension
#19
Sara Q C Giampá, Rodrigo P Pedrosa, Carolina C Gonzaga, Adriana Bertolami, Celso Amodeo, Sofia F Furlan, Luiz A Bortolotto, Geraldo Lorenzi-Filho, Luciano F Drager
Obstructive sleep apnoea (OSA) is the main secondary form associated with resistant hypertension (RH), but it is largely underdiagnosed and consequently undertreated in clinical practice. The Berlin questionnaire (BQ) is a useful tool among general population, but seems to not perform well among patients with RH. Recently, NoSAS score was validated in a large population, however, has not been tested in the cardiovascular scenario. Thus, we aimed to compare BQ versus the NoSAS score as screening tools for OSA in RH...
May 23, 2018: Journal of Human Hypertension
https://www.readbyqxmd.com/read/29789670/noise-estimation-model-development-using-high-resolution-transportation-and-land-use-regression
#20
Omer Harouvi, Eran Ben-Elia, Roni Factor, Kees de Hoogh, Itai Kloog
Noise pollution is a common phenomenon of the 21st century. Noise prediction models tend to estimate noise levels mainly from road traffic sources (such as cars, public transportation etc.). This paper describes the adoption of land use regression (LUR) modeling methodology to assess noise pollution in two periods of the day (rush hour and off-peak), in two major cities in Israel (Tel Aviv and Beer Sheva). For both rush hour and off-peak times, 20 min short term measurements were used to develop a LUR noise estimation model...
May 23, 2018: Journal of Exposure Science & Environmental Epidemiology
keyword
keyword
73715
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"