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Margin fit

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https://www.readbyqxmd.com/read/28534806/feature-selection-for-nonstationary-data-application-to-human-recognition-using-medical-biometrics
#1
Majid Komeili, Wael Louis, Narges Armanfard, Dimitrios Hatzinakos
Electrocardiogram (ECG) and transient evoked otoacoustic emission (TEOAE) are among the physiological signals that have attracted significant interest in biometric community due to their inherent robustness to replay and falsification attacks. However, they are time-dependent signals and this makes them hard to deal with in across-session human recognition scenario where only one session is available for enrollment. This paper presents a novel feature selection method to address this issue. It is based on an auxiliary dataset with multiple sessions where it selects a subset of features that are more persistent across different sessions...
May 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28527193/comparison-of-digital-intraoral-scanners-by-single-image-capture-system-and-full-color-movie-system
#2
Meguru Yamamoto, Yu Kataoka, Atsufumi Manabe
BACKGROUND: The use of dental computer-aided design/computer-aided manufacturing (CAD/CAM) restoration is rapidly increasing. OBJECTIVE: This study was performed to evaluate the marginal and internal cement thickness and the adhesive gap of internal cavities comprising CAD/CAM materials using two digital impression acquisition methods and micro-computed tomography. METHODS: Images obtained by a single-image acquisition system (Bluecam Ver...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28520210/biases-in-the-reporting-of-hcc-tumor-sizes-on-the-liver-transplant-waiting-list
#3
Mariya L Samoylova, Mark J Nigrini, Jennifer L Dodge, John P Roberts
We investigate the possibility that patients with hepatocellular carcinoma (HCC) listed for liver transplant with tumors just outside Stage T2 size criteria may be inaccurately reported as just meeting the tumor size criteria for transplant. The UNOS/STAR database identified 12,958 patients listed for liver transplants with HCC exception points from 2006-2013, 9,168 of whom were listed with one tumor. A logistic power peak function was fitted to the single-tumor size histogram, with the fitted values representing unbiased expected values...
May 18, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28510285/influence-of-quality-of-recovery-on-patient-satisfaction-with-anaesthesia-and-surgery-a-prospective-observational-cohort-study
#4
V Berning, M Laupheimer, M Nübling, T Heidegger
Patient satisfaction and quality of recovery are important measures of quality. Whether, and to what extent, patient satisfaction is influenced by quality of recovery, however, is not clear. The aim of this study was to evaluate the additional influence of quality of recovery on total patient satisfaction with anaesthesia and surgery. In this prospective cohort study, we used a validated quality of recovery questionnaire and a multi-item patient satisfaction questionnaire. Patients completed the quality of recovery questionnaire pre-operatively and 24 h postoperatively...
May 16, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28507862/eyelid-reconstruction-using-oral-mucosa-and-ear-cartilage-strips-as-sandwich-grafting
#5
Naoto Yamamoto, Hiroyuki Ogi, Satoshi Yanagibayashi, Ryuichi Yoshida, Megumi Takikawa, Akio Nishijima, Tomoharu Kiyosawa
BACKGROUND: The eyelid structure can be divided into an inner layer and an outer layer. Reconstruction of a full-thickness eyelid defect is accomplished by full-thickness composite tissue transfer or combined layered reconstruction. We present a new technique for inner layer reconstruction using ear cartilage and oral mucosa. METHODS: The oral mucosa graft is harvested from the inner side of the lower lip to fit the defect size and shape. The ear cartilage graft is harvested as a rectangular strip...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28494327/magnetic-field-induced-effects-on-nmr-properties
#6
J Jokisaari, A M Kantola, J Vaara
In principle, all the NMR observables, spin-spin coupling J, nuclear shielding σ and quadrupole coupling q, are magnetic field-dependent. The field dependence may be classified into two categories: direct and indirect (apparent) dependence. The former arises from the magnetic field-induced deformation of the molecular electronic cloud, while the latter stems from a slightly anisotropic orientation distribution of molecules, due to the interaction between the anisotropy of the molecular susceptibility tensor and the external magnetic field...
April 26, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28493205/development-of-the-life-impact-burn-recovery-evaluation-libre-profile-assessing-burn-survivors-social-participation
#7
Lewis E Kazis, Molly Marino, Pengsheng Ni, Marina Soley Bori, Flor Amaya, Emily Dore, Colleen M Ryan, Jeff C Schneider, Vivian Shie, Amy Acton, Alan M Jette
PURPOSE: Measuring the impact burn injuries have on social participation is integral to understanding and improving survivors' quality of life, yet there are no existing instruments that comprehensively measure the social participation of burn survivors. This project aimed to develop the Life Impact Burn Recovery Evaluation Profile (LIBRE), a patient-reported multidimensional assessment for understanding the social participation after burn injuries. METHODS: 192 questions representing multiple social participation areas were administered to a convenience sample of 601 burn survivors...
May 10, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28493116/general-and-ethnic-biased-bullying-among-latino-students-exploring-risks-of-depression-suicidal-ideation-and-substance-use
#8
Jodi Berger Cardoso, Hannah Selene Szlyk, Jeremy Goldbach, Paul Swank, Michael J Zvolensky
Using a cross-sectional sample of 534 Latino students from middle and high schools in a large North Carolina school district, we examined the relation of general and ethnic-biased bullying to depression and the indirect pathways through depression to suicidal ideation and substance use outcomes. A structural equation model tested the direct and indirect paths. The final model fit was excellent, χ(2)(90) = 127.6, p = .0056, RMSEA = 0.028, CFI = 0.974, TLI = 0.961. Ethnic-biased and verbal or relational bullying had a direct effect on depression, but general and physical bullying did not...
May 10, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/28480634/does-osteoporosis-influence-the-marginal-peri-implant-bone-level-in-female-patients-a-cross-sectional-study-in-a-matched-collective
#9
Florian Wagner, Krisztian Schuder, Markus Hof, Simone Heuberer, Rudolf Seemann, Gabriella Dvorak
BACKGROUND/PURPOSE: Osteoporosis, being a homeostatic imbalance, affects the remodeling of bone. Whether this catabolic bone disease influences peri-implant marginal bone remodeling remains unknown so far. The purpose of this study was to evaluate the influence of osteoporosis on peri-implant marginal bone loss (MBL) in postmenopausal women. MATERIALS AND METHODS: In a matched collective, radiographic peri-implant bone level (at baseline and at follow-up examinations) was compared in healthy and osteoporotic women...
May 8, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28474769/a-comparison-of-item-response-models-for-accuracy-and-speed-of-item-responses-with-applications-to-adaptive-testing
#10
Peter W van Rijn, Usama S Ali
We compare three modelling frameworks for accuracy and speed of item responses in the context of adaptive testing. The first framework is based on modelling scores that result from a scoring rule that incorporates both accuracy and speed. The second framework is the hierarchical modelling approach developed by van der Linden (2007, Psychometrika, 72, 287) in which a regular item response model is specified for accuracy and a log-normal model for speed. The third framework is the diffusion framework in which the response is assumed to be the result of a Wiener process...
May 2017: British Journal of Mathematical and Statistical Psychology
https://www.readbyqxmd.com/read/28470433/effects-of-interplay-of-nanoparticles-surfactants-and-base-fluid-on-the-surface-tension-of-nanocolloids
#11
A R Harikrishnan, Purbarun Dhar, Prabhat K Agnihotri, Sateesh Gedupudi, Sarit K Das
A systematically designed study has been conducted to understand and demarcate the degree of contribution by the constituting elements to the surface tension of nanocolloids. The effects of elements such as surfactants, particles and the combined effects of these on the surface tension of these complex fluids are studied employing the pendant drop shape analysis method by fitting the Young-Laplace equation. Only the particle has shown an increase in the surface tension with particle concentration in a polar medium like DI water, whereas only a marginal effect of particles on surface tension in weakly polar mediums like glycerol and ethylene glycol has been demonstrated...
May 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28464407/conditional-analysis-of-multiple-quantitative-traits-based-on-marginal-gwas-summary-statistics
#12
Yangqing Deng, Wei Pan
There has been an increasing interest in joint association testing of multiple traits for possible pleiotropic effects. However, even in the presence of pleiotropy, most of the existing methods cannot distinguish direct and indirect effects of a genetic variant, say single-nucleotide polymorphism (SNP), on multiple traits, and a conditional analysis of a trait adjusting for other traits is perhaps the simplest and most common approach to addressing this question. However, without individual-level genotypic and phenotypic data but with only genome-wide association study (GWAS) summary statistics, as typical with most large-scale GWAS consortium studies, we are not aware of any existing method for such a conditional analysis...
May 2, 2017: Genetic Epidemiology
https://www.readbyqxmd.com/read/28463167/exploring-the-margin-recipe-for-online-adaptive-radiation-therapy-for-intermediate-risk-prostate-cancer-an-intrafractional-seminal-vesicles-motion-analysis
#13
Yang Sheng, Taoran Li, W Robert Lee, Fang-Fang Yin, Q Jackie Wu
PURPOSE: To provide a benchmark for seminal vesicle (SV) margin selection to account for intrafractional motion and to investigate the effectiveness of 2 motion surrogates in predicting intrafractional SV coverage. METHODS AND MATERIALS: Fifteen prostate patients were studied. Each patient had 5 pairs (1 patient had 4 pairs) of pretreatment and posttreatment cone beam CTs (CBCTs). Each pair of CBCTs was registered on the basis of prostate fiducial markers. All pretreatment SVs were expanded with 1-, 2-, 3-, 4-, 5-, and 8-mm isotropic margins to form a series of planning target volumes, and their intrafractional coverage to the posttreatment SV determined the "ground truth" for exact coverage...
June 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28461045/evaluation-of-the-marginal-fit-of-cad-cam-zirconia-copings-comparison-of-2d-and-3d-measurement-methods
#14
Philippe Boitelle, Laurent Tapie, Bernardin Mawussi, Olivier Fromentin
PURPOSE: The purpose of this in vitro study was to compare the marginal fit of zirconia copings by using 2 different measurement methods: a triple optical scan method and a silicone replica method. MATERIAL AND METHODS: Sixty zirconia copings fabricated by computer-aided design and computer-aided manufacture (CAD-CAM) systems were studied for the marginal fit. For the replica method, the thickness of the light-body silicone layer of the discrepancy was assessed using light microscopy and image analysis software...
April 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28441442/the-effects-of-a-resistance-vs-an-aerobic-single-session-on-attention-and-executive-functioning-in-adults
#15
Ayelet Dunsky, Mona Abu-Rukun, Sharon Tsuk, Tzvi Dwolatzky, Rafi Carasso, Yael Netz
Evidence from recent studies showed that acute aerobic exercise results in improvements in different cognitive functions. The goal of this study was to assess the influence of acute bouts of aerobic versus resistance exercise on attention and executive function in adults. Thirty-nine physically active adults (age = 52±8 yr) served as participants. Each participant visited the laboratory four times: on the first visit participants performed a cognitive test (NeuroTrax) followed by an aerobic fitness assessment, as well as maximal strength test composed of six exercises...
2017: PloS One
https://www.readbyqxmd.com/read/28439245/validation-of-the-persian-version-of-the-langer-mindfulness-scale
#16
Fatemeh Moafian, Francesco Pagnini, Hooshang Khoshsima
This study validates the Persian version of the Langer Mindfulness Scale (LMS). The original scale consists of 21 items and 4 subscales; namely, novelty producing, novelty seeking, engagement, and flexibility. In this study, four samples including 2271 individuals in total participated. Confirmatory factor analysis was employed to test the factorial structure of the Persian version. The results verified a two-factor structure including novelty producing and novelty seeking for the scale and the two subscales of engagement and flexibility were omitted due to marginal fit...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28436358/a-validation-study-of-new-decision-algorithms-for-interpretation-of-cancer-significance-on-prostate-systematic-biopsy
#17
Gerald O Ogola, Nicolas Delongchamps, Robert Serfling
INTRODUCTION: To test with actual data a new decision algorithm derived by probability modeling of the number of positive cores, for deciding insignificant versus significant prostate cancer, based on prostate volume, Gleason score, tumor length on biopsy cores, and number of positive cores. MATERIALS AND METHODS: A dataset of 59 cancer-involved autopsied prostate glands from patients aged 42 to 92 years with prostate volumes of 22 cc to 95 cc was used. An 18 core-systematic biopsy was performed on the first 47 patients, and saturation biopsy protocol of 36 cores was performed on the remainder...
April 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28435624/metal-stain-on-monolithic-zirconia-restoration-a-case-report
#18
Min-Sang Cha, Sang-Woon Lee, Yoon-Hyuk Huh, Lee-Ra Cho, Chan-Jin Park
In restorative treatment using fixed dental prostheses, dentists should select appropriate restoration material among various types of dental materials. The strength, marginal fit, esthetics, wear resistance, biocompatibility, and cost are important factors in the choice of restoration materials. The present case showed a surface stain on a monolithic zirconia restoration that was due to wear between the monolithic zirconia restoration and the base metal alloy restoration. This phenomenon was confirmed by surface roughness measurement and electron probe micro-analysis...
April 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28434679/effect-of-fabrication-stages-and-cementation-on-the-marginal-fit-of-cad-cam-monolithic-zirconia-crowns
#19
Ediz Kale, Burak Yilmaz, Emre Seker, Tuncer Burak Özcelik
STATEMENT OF PROBLEM: Monolithic zirconia crowns fabricated using computer-aided design and computer-aided manufacturing (CAD-CAM) technology have recently become an alternative dental prosthetic treatment. The marginal fit of monolithic zirconia crown may be affected by different stages of the fabrication procedures in the laboratory and cementation. Information regarding the accuracy of fit of monolithic zirconia crowns at different stages of fabrication and cementation is limited. PURPOSE: The purpose of this in vitro study was to evaluate the effect of different stages of fabrication and cementation on the vertical marginal discrepancy (VMD) of CAD-CAM fabricated monolithic zirconia crowns...
April 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28433766/1-4-dioxane-drinking-water-occurrence-data-from-the-third-unregulated-contaminant-monitoring-rule
#20
David T Adamson, Elizabeth A Piña, Abigail E Cartwright, Sharon R Rauch, R Hunter Anderson, Thomas Mohr, John A Connor
This study examined data collected from U.S. public drinking water supplies in support of the recently-completed third round of the Unregulated Contaminant Monitoring Rule (UCMR3) to better understand the nature and occurrence of 1,4-dioxane and the basis for establishing drinking water standards. The purpose was to evaluate whether the occurrence data for this emerging but federally-unregulated contaminant fit with common conceptual models, including its persistence and the importance of groundwater contamination for potential exposure...
April 20, 2017: Science of the Total Environment
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