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'Europe by Eurail' has been the train traveller's one-stop source for visiting Europe's cities and countries by rail for over forty years. Newly revised and updated, this comprehensive annual guide provides the latest information on fares, schedules, and pass options, as well as detailed information on more than one hundred specific rail excursions and sightseeing options.

Achieving reliably high production of reactive oxygen species (ROS) in photodynamic therapy (PDT) remains challenging. Graphene quantum dots (GQDs) hold great promise for PDT. However, the photochemical processes leading to GQD-derived ROS generation have not yet been fully elucidated. Physicochemical characteristics of GQDs were comprehensively investigated, including electron paramagnetic resonance analysis of singlet oxygen production. Dark toxicity was assessed and . GQDs demonstrated excellent photoluminescent features, corrosion resistance, high water solubility, high photo/pH-stability, and biocompatibility and very efficient singlet oxygen/ROS generation. The enhanced ROS generation, combined with good biocompatibility and minimal toxicity and support the potential of GQDs for future PDT application.

This volume examines the role of English as a Lingua Franca (ELF) in education in Europe. The volume focuses on attitudes towards ELF in different parts of the continent; discusses the extent to which ELF is perceived as a threat or opportunity in European education; and covers the use of ELF in different academic contexts.

Genomic imprinting has provided insights into epigenetic principles that apply in many contexts. This Timeline highlights lessons for developmental gene regulation by looking back at the emergence of our understanding of imprinting, particularly in mammals, and commenting on current questions and recent progress. The emerging awareness of the contribution of epigenetic processes to genome function in health and disease is underpinned by decades of research in model systems. In particular, many principles of the epigenetic control of genome function have been uncovered by studies of genomic imprinting. The phenomenon of genomic imprinting, which results in some genes being expressed in a parental--origin-specific manner, is essential for normal mammalian growth and development and exemplifies the regulatory influences of DNA methylation, chromatin structure and non-coding RNA. Setting seminal discoveries in this field alongside recent progress and remaining questions shows how the study of imprinting continues to enhance our understanding of the epigenetic control of genome function in other contexts.

\"The events of the Infinity Countdown are felt across the Marvel Universe! Carol Danvers holds the Reality Stone - and with it meets the Captain Marvels of many worlds! Daredevil battles to keep Hell's Kitchen safe from the influence of the Mind Stone! And the Champions fight in deep space for...the Chitauri!? All this plus...Black Widow! Don't miss this blockbuster tie-in to the most explosive Marvel event of 2018! \" -- Page 4 of cover.

Heritability has traditionally been thought to be a characteristic feature of the genetic material of an organism—notably, its DNA. However, it is now clear that inheritance not based on DNA sequence exists in multiple organisms, with examples found in microbes, plants, and invertebrate and vertebrate animals. In mammals, the molecular mechanisms have been challenging to elucidate, in part due to difficulties in designing robust models and approaches. Here we review some of the evidence, concepts, and potential mechanisms of non-DNA sequence-based transgenerational inheritance. We highlight model systems and discuss whether phenotypes are replicated or reconstructed over successive generations, as well as whether mechanisms operate at transcriptional and/or posttranscriptional levels. Finally, we explore the short- and long-term implications of non-DNA sequence-based inheritance. Understanding the effects of non-DNA sequence-based mechanisms is key to a full appreciation of heritability in health and disease.

Pulmonary embolism (PE) is a blood clot traveling to the lungs and is associated with substantial morbidity and mortality. Therefore, rapid diagnoses and treatments are essential. Chest computed tomographic pulmonary angiogram (CTPA) is the gold standard for PE diagnoses. Deep learning can enhance the radiologists’workflow by identifying PE using CTPA, which helps to prioritize important cases and hasten the diagnoses for at-risk patients. In this study, we propose a two-phase multitask learning method that can recognize the presence of PE and its properties such as the position, whether acute or chronic, and the corresponding right-to-left ventricle diameter (RV/LV) ratio, thereby reducing false-negative diagnoses. Trained on the RSNA-STR Pulmonary Embolism CT Dataset, our model demonstrates promising PE detection performances on the hold-out test set with the window-level AUROC achieving 0.93 and the sensitivity being 0.86 with a specificity of 0.85, which is competitive with the radiologists’sensitivities ranging from 0.67 to 0.87 with specificities of 0.89–0.99. In addition, our model provides interpretability through attention weight heatmaps and gradient-weighted class activation mapping (Grad-CAM). Our proposed deep learning model could predict PE existence and other properties of existing cases, which could be applied to practical assistance for PE diagnosis.

Fibroblasts constitute the major mesenchymal cell type in the connective tissue and their functions are remarkably diverse: here, by characterising lineages of mouse skin fibroblasts, it is shown that distinct subpopulations contribute to skin development and repair during injury. Two fibroblast lineages in skin development and repair Fibroblasts are unremarkable looking cells found in most tissues in the body, where they are mainly concerned with making the collagen that supports other cell types. The cells all look much the same yet are functionally diverse, prompting the question, is there just one cell type responding differently to different stimuli, or do individual cells specialize? A transplantation and lineage tracing study in mice now shows that skin connective tissue arises from two distinct fibroblast lineages that also contribute differentially to skin development and repair after injury. One cell type forms the lower dermis and the other the upper dermis. The latter lineage is required for hair follicle production. In wounded adult skin, the initial wave of dermal repair is mediated by the 'lower' lineage, which may explain the absence of hair follicles in newly closed wounds. The authors develop a comprehensive lineage tree for all fibroblast-derived cell types in mouse dermis, including smooth muscle cells and adipocytes. Fibroblasts are the major mesenchymal cell type in connective tissue and deposit the collagen and elastic fibres of the extracellular matrix (ECM) 1 . Even within a single tissue, fibroblasts exhibit considerable functional diversity, but it is not known whether this reflects the existence of a differentiation hierarchy or is a response to different environmental factors. Here we show, using transplantation assays and lineage tracing in mice, that the fibroblasts of skin connective tissue arise from two distinct lineages. One forms the upper dermis, including the dermal papilla that regulates hair growth and the arrector pili muscle, which controls piloerection. The other forms the lower dermis, including the reticular fibroblasts that synthesize the bulk of the fibrillar ECM, and the preadipocytes and adipocytes of the hypodermis. The upper lineage is required for hair follicle formation. In wounded adult skin, the initial wave of dermal repair is mediated by the lower lineage and upper dermal fibroblasts are recruited only during re-epithelialization. Epidermal β-catenin activation stimulates the expansion of the upper dermal lineage, rendering wounds permissive for hair follicle formation. Our findings explain why wounding is linked to formation of ECM-rich scar tissue that lacks hair follicles 2 , 3 , 4 . They also form a platform for discovering fibroblast lineages in other tissues and for examining fibroblast changes in ageing and disease.

Circulating cell-free DNA from blood plasma of cancer patients can be used to non-invasively interrogate somatic tumor alterations. Here we develop MSK-ACCESS (Memorial Sloan Kettering - Analysis of Circulating cfDNA to Examine Somatic Status), an NGS assay for detection of very low frequency somatic alterations in 129 genes. Analytical validation demonstrated 92% sensitivity in de-novo mutation calling down to 0.5% allele frequency and 99% for a priori mutation profiling. To evaluate the performance of MSK-ACCESS, we report results from 681 prospective blood samples that underwent clinical analysis to guide patient management. Somatic alterations are detected in 73% of the samples, 56% of which have clinically actionable alterations. The utilization of matched normal sequencing allows retention of somatic alterations while removing over 10,000 germline and clonal hematopoiesis variants. Our experience illustrates the importance of analyzing matched normal samples when interpreting cfDNA results and highlights the importance of cfDNA as a genomic profiling source for cancer patients. Liquid biopsies allow the non-invasive detection of somatic mutations from tumours. Here, the authors develop and test MSK-ACCESS, an NGS-based clinical assay for identifying low frequency mutations in 129 genes and describe how it benefits patients in the clinic.