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  • Melendez Freedman posted an update 1 week ago

    heterogeneity index H can be used to assess bimodal ventilation imbalances in cases when this phenomenon dominates lung properties, however future analyses, including the impact of lung tissue viscoelasticity and distributed airway or tissue inhomogeneity on H estimates, as well as studies in the time domain, are advisable.Breast cancer is the most commonly occurring type of cancer among women, and it is the major cause of female cancer-related deaths worldwide. Its incidence is increasing in developed as well as developing countries. Efficient strategies to reduce the high death rates due to breast cancer include early detection and tumor removal in the initial stages of the disease. Clinical and mammographic examinations are considered the best methods for detecting the early signs of breast cancer; however, these techniques are highly dependent on breast characteristics, equipment quality, and physician experience. Computer-aided diagnosis (CADx) systems have been developed to improve the accuracy of mammographic diagnosis; usually such systems may involve three steps (i) segmentation; (ii) parameter extraction and selection of the segmented lesions and (iii) lesions classification. Literature considers the first step as the most important of them, as it has a direct impact on the lesions characteristics that will be used invalues for large and small microcalcifications. The proposed method had better or similar performance as compared to literature for microcalcifications with maximum diameters larger than 460μm. For smaller microcalcifications the performance was limited.The internet is a popular tool for information dissemination and community building, serving many purposes from social networking to support seeking. However, there may be a downside to using some online support communities. For individuals with eating disorders (EDs), it is possible that certain online communities may reinforce the negative social aspects that encourage these disorders, rather than positive aspects that would facilitate treatment and recovery. Previous research identified several linguistic themes present on pro-eating disorder websites in an attempt to better understand the web-based conversation in the pro-eating disorder movement. We hypothesized that differences in theme presentation may predict changes in perceived harm. The present study sought to understand the perceived harm, and presentation patterns of pro-eating disorder (Pro-ED) website content. We replicated and extended previous research by having laypersons code these websites’ content using previously identified linguistic themes and rate perceived harm. Our data replicate and extend the previous research by finding the same associations between co-occurring themes, and investigating associated perceived harm. We found that themes of Sacrifice, Control, Deceit, and Solidarity were associated with the highest perceived harm scores. In addition, we suggest an initial conceptualization of the “Eating Disorder Lifestyle”, and its associations with the themes of Isolation, Success, and Solidarity. This research may provide clinicians with information to better understand the potential influence these sites have on eating disorders.

    Impaired speech prosody is common in Parkinson’s disease (PD). We assessed the impact of PD and levodopa on MRI resting-state functional connectivity (rs-FC) underlying speech prosody control.

    We studied 19 PD patients in the OFF and ON dopaminergic conditions and 15 age-matched healthy controls using functional MRI and seed partial least squares correlation (PLSC) analysis. In the PD group, we also correlated levodopa-induced rs-FC changes with the results of acoustic analysis.

    The PLCS analysis revealed a significant impact of PD but not of medication on the rs-FC strength of spatial correlation maps seeded by the anterior cingulate (p = 0.006), the right orofacial primary sensorimotor cortex (OF_SM1; p = 0.025) and the right caudate head (CN; p = 0.047). In the PD group, levodopa-induced changes in the CN and OF_SM1 connectivity strengths were related to changes in speech prosody.

    We demonstrated an impact of PD but not of levodopa on rs-FC within the brain networks related to speech prosody control. When only the PD patients were taken into account, the association between treatment-induced changes in speech prosody and changes in rs-FC within the associative striato-prefrontal and motor speech networks was found.

    We demonstrated an impact of PD but not of levodopa on rs-FC within the brain networks related to speech prosody control. When only the PD patients were taken into account, the association between treatment-induced changes in speech prosody and changes in rs-FC within the associative striato-prefrontal and motor speech networks was found.

    Smoking is a factor associated with premature death, including in older people. Stopping smoking reduces related mortality even after the age of 60. The aim of this study, conducted in a smoking cessation clinic, was to describe the characteristics of these older smokers and their quit attempts.

    A retrospective study was performed from the patient files of a smoking cessation clinic between 1999/01/01 and 2009/12/31; “older” smokers (≥60 years; n=181) were compared to “young” smokers (<60 years; n=1425).

    Compared to young smokers, older smokers had a higher frequency of cardio-pulmonary diseases (82.3 % vs. 46.7 %; P<0.0001) and current depressions (45.3% vs. 35.7%; P=0.012); their abstinence rate at 12 months was higher (44.2% vs. 32.9%; P=0.0025). An age over 60 years was associated with a higher success rate (OR=1.83; CI 95% 1.29-2.59).

    Cessation smoking attempts are as likely to be successful in older smokers as in younger smokers. Physicians should advise and assist older smokers to quit and if necessary refer them to smoking cessation clinics. Smoking cessation guidelines therefore will apply without reserve in seniors.

    Cessation smoking attempts are as likely to be successful in older smokers as in younger smokers. Physicians should advise and assist older smokers to quit and if necessary refer them to smoking cessation clinics. Smoking cessation guidelines therefore will apply without reserve in seniors.

    To assess the association between parental education and under-five mortality, using the Integrated Management of Childhood Illness (IMCI) data from rural Bangladesh. It also investigated whether the association of parental education with under-five mortality had changed over time.

    This study was nested in the IMCI cluster randomized controlled trial.

    Participants considered for the analysis were all children aged under five years from the baseline (1995-2000) and the final (2002-2007) IMCI household survey. The analysis sample included 39,875 and 38,544 live births from the baseline and the final survey respectively. The outcome variable was under-five mortality and the exposure variables were mother’s and father’s education. Data were analysed with logistic regression.

    In 2002-2007, the odds of the under-five mortality were 38% lower for the children with mother having secondary education, compared to the children with uneducated mother. For similar educational differences for fathers, at the same time period, the odds of the under-five mortality were 16% lower. The association of mother’s education with under-five mortality was significantly stronger in 2002-2007 compared to 1995-2000.

    Mother’s education appears to have a strong and significant association with under-five mortality, compared to father’s education. The association of mother’s education with under-five mortality appears to have increased over time. Ulixertinib chemical structure Our findings indicate that investing on girls’ education is a good strategy to combat infant mortality in developing countries.

    Mother’s education appears to have a strong and significant association with under-five mortality, compared to father’s education. The association of mother’s education with under-five mortality appears to have increased over time. Our findings indicate that investing on girls’ education is a good strategy to combat infant mortality in developing countries.In 2004, an analysis by Lockwood and colleagues of hard-tissue morphology, using geometric morphometrics on the temporal bone, succeeded in recovering the correct phylogeny of living hominids without resorting to potentially problematic methods for transforming continuous shape variables into meristic characters. That work has increased hope that by using modern analytical methods and phylogenetically informative anatomical data we might one day be able to accurately infer the relationships of hominins, including the closest extinct relatives of modern humans. In the present study, using 3D virtually generated models of the hominid temporal bone and a larger suite of geometric morphometric and comparative techniques, we have re-examined the evidence for a Pan-Homo clade. Despite differences in samples, as well as the type of raw data, the effect of measurement error (and especially landmark digitization by a different operator), but also a broader perspective brought in by our diverse set of approaches, our rin geometric morphometric analyses.

    Risk and risk assessment are increasingly affecting how maternity services are governed with rates of intervention continuing to rise in obstetric-led services for low-risk women.

    This review synthesises original research that examines how perceptions of risk impact on midwives’ and obstetricians’ facilitation of care for low-risk women in labour.

    A five stage process for conducting integrative reviews was employed. A robust search strategy incorporated electronic searches in The Cochrane Database of Systematic Reviews, EBSCO, EMBASE and Scopus from 2009 to 2014. The initial search resulted in the retrieval of 2429 articles which were reduced to 14 through a systematic process.

    The results of this review revealed an over-arching theme of an assumption of abnormality in the birthing process leading to unnecessary intervention and surveillance. Three sub-themes are presented under this central theme – (1) external influences on risk perception that include practice guidelines and professional responsibith and wellbeing in the planning of maternity care may go some way towards providing a solution to the increasing intervention rates for low-risk women.Retinal ganglion Y (alpha) cells are found in retinas ranging from frogs to mice to primates. The highly conserved nature of the large, fast conducting retinal Y cell is a testament to its fundamental task, although precisely what this task is remained ill-defined. The recent discovery that Y-alpha retinal ganglion cells send axon collaterals to the serotonergic dorsal raphe nucleus (DRN) in addition to the lateral geniculate nucleus (LGN), medial interlaminar nucleus (MIN), pretectum and the superior colliculus (SC) has offered new insights into the important survival tasks performed by these cells with highly branched axons. We propose that in addition to its role in visual perception, the Y-alpha retinal ganglion cell provides concurrent signals via axon collaterals to the DRN, the major source of serotonergic afferents to the forebrain, to dramatically inhibit 5-HT activity during orientation or alerting/escape responses, which dis-facilitates ongoing tonic motor activity while dis-inhibiting sensory information processing throughout the visual system.