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https://www.readbyqxmd.com/read/28087738/newer-vape-pens-still-trigger-urge-to-smoke-study-finds
#1
Jacqui Wise
No abstract text is available yet for this article.
January 13, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28081226/regional-homogeneity-changes-in-nicotine-addicts-by-resting-state-fmri
#2
Hongbo Chen, Shaofeng Mo
OBJECTIVE: To reveal the brain functional changes of nicotine addicts compared with those of non-smokers and explore the objective biomarker for nicotine dependence evaluation. METHODS: A total of 14 smokers and 11 non-smoking controls were recruited for this study. Resting-state functional magnetic resonance imaging and regional homogeneity (ReHo) were applied in the neural activity analysis. Two-sample t-test was performed to examine the voxel-wise difference between the smokers and the controls...
2017: PloS One
https://www.readbyqxmd.com/read/28079398/feasibility-evaluation-of-diffusion-weighted-imaging-using-an-integrated-mri-radiotherapy-system-for-response-assessment-to-neoadjuvant-therapy-in-rectal-cancer
#3
Narek Shaverdian, Yingli Yang, Peng Hu, Steven Hart, Ke Sheng, James Lamb, Minsong Cao, Nzhde Agazaryan, David Thomas, Michael Steinberg, Daniel A Low, Percy Lee
OBJECTIVES: To evaluate the feasibility of on-board DWI with an integrated low-field MRI-radiotherapy system to assess responses to neoadjuvant chemoradiation (NAC) in rectal cancer. METHODS: A spin echo-based planar imaging diffusion sequence on a 0.35 T MRI-radiotherapy system was acquired over the course of NAC. The apparent diffusion coefficients (ADC) from the tumor region of interest (ROIs) were calculated. A functional diffusion map (fDM) was created showing a pixel-wise ADC analysis of the ROI over the course of treatment...
January 12, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28079057/functional-mri-of-the-reserpine-induced-putative-rat-model-of-fibromyalgia-reveals-discriminatory-patterns-of-functional-augmentation-to-acute-nociceptive-stimuli
#4
Jack A Wells, Sayaka Shibata, Akihiko Fujikawa, Masayasu Takahashi, Tsuneo Saga, Ichio Aoki
Functional neuroimaging, applied to pre-clinical models of chronic pain, offers unique advantages in the drive to discover new treatments for this prevalent and oppressive condition. The high spatial and temporal resolution of fMRI affords detailed mapping of regional pharmacodynamics that underlie mechanisms of pain suppression by new analgesics. Despite evidence supporting the translational relevance of this approach, relatively few studies have investigated fMRI abnormalities in rodent models of chronic pain...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077365/breast-screening-benefits-have-been-overstated-danish-study-finds
#5
Jacqui Wise
No abstract text is available yet for this article.
January 10, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28077175/structural-correlates-of-trait-impulsivity-in-patients-with-bipolar-disorder-and-healthy-controls-a-surface-based-morphometry-study
#6
P C Tu, Y H Kuan, C T Li, T P Su
BACKGROUND: Patients with bipolar disorder (BD) frequently exhibit impulsive behaviors independent of their mood state, and trait impulsivity is increasingly recognized as a crucial BD biomarker. This study aimed to investigate structural correlates of trait impulsivity measured using the Barratt Impulsiveness Scale (BIS) in healthy controls (HCs) and patients with BD. METHOD: We recruited 59 patients diagnosed with BD I or BD II (35.3 ± 8.5 years) and 56 age- and sex-matched HCs (33...
January 12, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28076435/walking-ahead-the-headed-social-force-model
#7
Francesco Farina, Daniele Fontanelli, Andrea Garulli, Antonio Giannitrapani, Domenico Prattichizzo
Human motion models are finding an increasing number of novel applications in many different fields, such as building design, computer graphics and robot motion planning. The Social Force Model is one of the most popular alternatives to describe the motion of pedestrians. By resorting to a physical analogy, individuals are assimilated to point-wise particles subject to social forces which drive their dynamics. Such a model implicitly assumes that humans move isotropically. On the contrary, empirical evidence shows that people do have a preferred direction of motion, walking forward most of the time...
2017: PloS One
https://www.readbyqxmd.com/read/28076262/physician-cost-consciousness-and-use-of-low-value-clinical-services
#8
Michael Grover, Neena Abraham, Yu-Hui Chang, Jon Tilburt
PURPOSE: Choosing Wisely(TM) engaged medical specialties, creating "top 5 lists" of low-value services. We describe primary care physicians' (PCPs') self-reported use of these services and perceived barriers to guideline adherence. We quantify physician cost consciousness and determine associations with use. METHODS: PCP attendees of a continuing medical education conference completed a survey. For each Family Medicine Choosing Wisely behavior, participants reported clinical adherence...
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28074600/analyzing-multiple-endpoints-in-a-confirmatory-randomized-clinical-trial-an-approach-that-addresses-stratification-missing-values-baseline-imbalance-and-multiplicity-for-strictly-ordinal-outcomes
#9
Hengrui Sun, Atsushi Kawaguchi, Gary Koch
Confirmatory randomized clinical trials with a stratified design may have ordinal response outcomes, ie, either ordered categories or continuous determinations that are not compatible with an interval scale. Also, multiple endpoints are often collected when 1 single endpoint does not represent the overall efficacy of the treatment. In addition, random baseline imbalances and missing values can add another layer of difficulty in the analysis plan. Therefore, the development of an approach that provides a consolidated strategy to all issues collectively is essential...
January 11, 2017: Pharmaceutical Statistics
https://www.readbyqxmd.com/read/28073747/exercising-as-weekend-warrior-still-yields-mortality-benefit-study-finds
#10
Jacqui Wise
No abstract text is available yet for this article.
January 9, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28072850/chaos-based-simultaneous-compression-and-encryption-for-hadoop
#11
Muhammad Usama, Nordin Zakaria
Data compression and encryption are key components of commonly deployed platforms such as Hadoop. Numerous data compression and encryption tools are presently available on such platforms and the tools are characteristically applied in sequence, i.e., compression followed by encryption or encryption followed by compression. This paper focuses on the open-source Hadoop framework and proposes a data storage method that efficiently couples data compression with encryption. A simultaneous compression and encryption scheme is introduced that addresses an important implementation issue of source coding based on Tent Map and Piece-wise Linear Chaotic Map (PWLM), which is the infinite precision of real numbers that result from their long products...
2017: PloS One
https://www.readbyqxmd.com/read/28072842/fractal-analysis-of-brain-blood-oxygenation-level-dependent-bold-signals-from-children-with-mild-traumatic-brain-injury-mtbi
#12
Olga Dona, Michael D Noseworthy, Carol DeMatteo, John F Connolly
BACKGROUND: Conventional imaging techniques are unable to detect abnormalities in the brain following mild traumatic brain injury (mTBI). Yet patients with mTBI typically show delayed response on neuropsychological evaluation. Because fractal geometry represents complexity, we explored its utility in measuring temporal fluctuations of brain resting state blood oxygen level dependent (rs-BOLD) signal. We hypothesized that there could be a detectable difference in rs-BOLD signal complexity between healthy subjects and mTBI patients based on previous studies that associated reduction in signal complexity with disease...
2017: PloS One
https://www.readbyqxmd.com/read/28072608/is-it-wise-to-link-vasomotor-symptoms-with-cardiovascular-disease
#13
Cynthia A Stuenkel
No abstract text is available yet for this article.
January 9, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28072574/motion-compensation-using-origin-ensembles-in-awake-small-animal-positron-emission-tomography
#14
John E Gillam, Georgios I Angelis, Andre Z Kyme, Steven R Meikle
In emission tomographic imaging, the stochastic origin ensembles algorithm provides unique information regarding the detected counts given the measured data. Precision in both voxel and region-wise parameters may be determined for a single data set based on the posterior distribution of the count density allowing uncertainty estimates to be allocated to quantitative measures. Uncertainty estimates are of particular importance in awake animal neurological and behavioral studies for which head motion, unique for each acquired data set, perturbs the measured data...
January 10, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28070745/considering-total-intracranial-volume-and-other-nuisance-variables-in-brain-voxel-based-morphometry-in-idiopathic-pd
#15
Samuel Crowley, Haiqing Huang, Jared Tanner, Qing Zho, Nadine A Schwab, Loren Hizel, Daniel Ramon, Babette Brumback, Mingzhou Ding, Catherine C Price
Voxel-based morphometry (VBM) studies of Parkinson's disease (PD), have yielded mixed results, possibly due to several studies not accounting for common nuisance variables (age, sex, and total intracranial volume [TICV]). TICV is particularly important because there is evidence for larger TICV in PD. We explored the influence of these covariates on VBM by 1) comparing PD patients and controls before adding covariates, after adding age and sex, and after adding age, sex and TICV, and 2) by comparing controls split into large and small TICV before and after controlling for TICV, with age and sex accounted for in both analyses...
January 9, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28070706/analysis-of-12-x-str-loci-in-the-population-of-south-croatia
#16
Gordan Mršić, Petar Ozretić, Josip Crnjac, Siniša Merkaš, Ivana Račić, Sara Rožić, Viktorija Sukser, Maja Popović, Marina Korolija
The aim of the study was to assess forensic pertinence of 12 short tandem repeats (STRs) on X-chromosome in south Croatia population. Investigator(®) Argus X-12 kit was used to co-amplify 12 STR loci belonging to four linkage groups (LGs) on X-chromosome in 99 male and 98 female DNA samples of unrelated donors. PCR products were analyzed by capillary electrophoresis. Population genetic and forensic parameters were calculated by the Arlequin and POPTREE2 software, and an on-line tool available at ChrX-STR.org...
January 9, 2017: Molecular Biology Reports
https://www.readbyqxmd.com/read/28070269/musculoskeletal-diagnostic-ultrasound-imaging-for-thickness-measurement-of-four-principal-muscles-of-the-cervical-spine-a-reliability-and-agreement-study
#17
Cecilie Krage Øverås, Birgitte Lawaetz Myhrvold, Gro Røsok, Eli Magnesen
BACKGROUND: The reliability of musculoskeletal diagnostic ultrasound imaging (MSK-DUSI) for the evaluation of neck musculature has been sparsely documented in the research literature. Until now, research has featured a limited number of subjects and only few studies have tested for both inter- and intra-reliability using appropriate methodology. METHODS: Four examiners conducted an inter- and intra-rater reliability and agreement study. Fifty females with and without neck pain (NP) between the ages of 20-70 were recruited from October 2014 to April 2015...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28070240/newer-perspectives-of-coronary-artery-disease-in-young
#18
REVIEW
Amitesh Aggarwal, Saurabh Srivastava, M Velmurugan
Coronary artery disease (CAD) occurring in less than 45 years of age is termed as young CAD. Recent studies show a prevalence of 1.2% of CAD cases in this age group. Ethnic wise south Asians especially Indians are more vulnerable to have CAD in young age group with a prevalence of 5% to 10%. Conventional risk factors such as smoking, diabetes, hypertension, obesity and family history seems to be as important as in older CAD subjects. But the prevalence of these risk factors seems to vary in younger subjects...
December 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/28069525/utilization-of-the-nsqip-pediatric-database-in-development-and-validation-of-a-new-predictive-model-of-pediatric-postoperative-wound-complications
#19
Ilan I Maizlin, David T Redden, Elizabeth A Beierle, Mike K Chen, Robert T Russell
BACKGROUND: Surgical wound classification, introduced in 1964, stratifies the risk of surgical site infection (SSI) based on a clinical estimate of the inoculum of bacteria encountered during the procedure. Recent literature has questioned the accuracy of predicting SSI risk based on wound classification. We hypothesized that a more specific model founded on specific patient and perioperative factors would more accurately predict the risk of SSI. STUDY DESIGN: Using all observations from the 2012 to 2014 pediatric National Quality Surgical Improvement-Pediatric (NSQIP-P) Participant Use File, patients were randomized into model creation and model verification datasets...
January 6, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28069448/interaction-times-change-evolutionary-outcomes-two-player-matrix-games
#20
Vlastimil Křivan, Ross Cressman
Two most influential models of evolutionary game theory are the Hawk-Dove and Prisoner's dilemma models. The Hawk-Dove model explains evolution of aggressiveness, predicting individuals should be aggressive when the cost of fighting is lower than its benefit. As the cost of aggressiveness increases and outweighs benefits, aggressiveness in the population should decrease. Similarly, the Prisoner's dilemma models evolution of cooperation. It predicts that individuals should never cooperate despite cooperation leading to a higher collective fitness than defection...
January 6, 2017: Journal of Theoretical Biology
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