locklinda49
locklinda49
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Modifications in brain function remain relatively unexplored in progressive multiple sclerosis (PMS), despite their potential to provide new insights into the pathophysiology of the disease at this stage. To characterize the dynamics of functional networks at rest in patients with PMS, and the relation with clinical disability. Thirty-two patients with PMS underwent clinical and cognitive assessment. The dynamic properties of functional networks, retrieved from transient brain activity, were obtained from patients and 25 healthy controls (HCs). Sixteen HCs and 19 patients underwent a 1-year follow-up (FU) clinical and imaging assessment. Differences in the dynamic metrics between groups, their longitudinal changes, and the correlation with clinical disability were explored. PMS patients, compared to HCs, showed a reduced dynamic functional activation of the anterior default mode network (aDMN) and a decrease in its opposite-signed co-activation with the executive control network (ECN), at baseline and FU. Processing speed and visuo-spatial memory negatively correlated to aDMN dynamic activity. The anti-couplings between aDMN and auditory/sensory-motor network, temporal-pole/amygdala, or salience networks were differently associated with separate cognitive domains. Patients with PMS presented an altered aDMN functional recruitment and anti-correlation with ECN. The aDMN dynamic functional activity and interaction with other networks explained cognitive disability.Patients with PMS presented an altered aDMN functional recruitment and anti-correlation with ECN. The aDMN dynamic functional activity and interaction with other networks explained cognitive disability.Hospitals play a critical role in providing essential care during emergencies; however, this essential care can overwhelm the functional capacity of health systems. In Italy, substantial cuts in funding have drastically reduced the resources of the National Health Service (NHS) and contributed to the expansion of the private health sector which, unlike the public health system, does not have the capacity to deal with a health emergency such as coronavirus disease 2019 (COVID-19). The purpose of this article is to show how the privatization of the NHS contributed to making Italy more vulnerable and unprepared to tackle the COVID-19 pandemic. The available capacity and resources in the public and private emergency services systems in Italy are compared, including a focus on the numbers of hospital staff, hospitals, and hospital beds. The reduced funding and subsequent shortfalls in services in the NHS are reasons why extreme measures were needed to increase these resources during the COVID-19 pandemic. selleck chemicals A public NHS in Italy would be better prepared for future health emergencies. The lessons learned from the COVID-19 pandemic can help to inform future health systems strategies, to halt the current financial decline and performance loss of national health systems, and to enable better preparation for future health emergencies.Ectopic prostate tissue is a rare phenomenon. Histologically and immunohistochemically it is indistinguishable from normal prostatic tissue but it is difficult to recognize and may be confused with malignancy when presenting as ectopic lesion in the urinary system. Therefore, awareness of this entity is essential for both urologists and pathologists to prevent misdiagnosis.John Goodsir, conservator and professor of anatomy at the University of Edinburgh, suffered an unidentified illness described by experts after his death as tabes. The features that led to this diagnosis, the understanding of tabes at that time and its relationship in some cases to syphilis, are discussed. It is concluded that the most likely diagnoses are subacute combined degeneration of the cord as a result of malnutrition or tabes dorsalis resulting from earlier syphilis. The presence of 'lightning pains' leans towards the latter diagnosis but evidence for a means of acquisition of syphilis is lacking. The disadvantages of retrospective diagnosis are discussed.The area under the receiver operating characteristic curve (AUC) is one of the most popular measures for evaluating the performance of a predictive model. In nested models, the change in AUC (ΔAUC) can be a discriminatory measure of whether the newly added predictors provide significant improvement in terms of predictive accuracy. Recently, several authors have shown rigorously that ΔAUC can be degenerate and its asymptotic distribution is no longer normal when the reduced model is true, but it could be the distribution of a linear combination of some χ12 random variables [1,2]. Hence, the normality assumption and existing variance estimate cannot be applied directly for developing a statistical test under the nested models. In this paper, we first provide a brief review on the use of ΔAUC for comparing nested logistic models and the difficulty of retrieving the reference distribution behind. Then, we present a special case of the nested logistic regression models that the newly added predictor to the reduced model contains a change-point in its effects. A new test statistic based on ΔAUC is proposed in this setting. A simple resampling scheme is proposed to approximate the critical values for the test statistic. The inference of the change-point parameter is done via m-out-of-n bootstrap. Large-scale simulation is conducted to evaluate the finite-sample performance of the ΔAUC test for the change-point model. The proposed method is applied to two real-life datasets for illustration.A pre-post study was conducted to evaluate the utility of template documents specifically created to assist research protocol submissions to a Thai research ethics committee (REC). A total of 172 protocols during the 2014-2016 preintervention period were matched to 172 protocols during the 2017-2019 postintervention period by type of principal investigator and REC review category. The intervention was associated with a significant reduction in initial REC requirement deficiencies in the information sheet and informed consent form, resubmission turn-around time by the principal investigator, and time form protocol submission to REC approval. The most significant postintervention improvements were for information about the consent process and listed risks of study participation. In this study, utilization of a structured protocol template with guidance instructions was associated with measurable improvement in the quality of research protocol submissions and REC review process.

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