The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

Retrospective evaluation of whole exome and genome mutation calls in 746 cancer samples

Funder: NCI U24CA211006Abstract: The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) curated consensus somatic mutation calls using whole exome sequencing (WES) and whole genome sequencing (WGS), respectively. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, which aggregated whole genome sequencing data from 2,658 cancers across 38 tumour types, we compare WES and WGS side-by-side from 746 TCGA samples, finding that ~80% of mutations overlap in covered exonic regions. We estimate that low variant allele fraction (VAF < 15%) and clonal heterogeneity contribute up to 68% of private WGS mutations and 71% of private WES mutations. We observe that ~30% of private WGS mutations trace to mutations identified by a single variant caller in WES consensus efforts. WGS captures both ~50% more variation in exonic regions and un-observed mutations in loci with variable GC-content. Together, our analysis highlights technological divergences between two reproducible somatic variant detection efforts

Medical hypnosis and orthopedic hand surgery: Pain perception, postoperative recovery, and therapeutic comfort

Orthopedic hand-surgery patients experience severe pain postoperatively, yet they must engage in painful exercises and wound care shortly after surgery; poor patient involvement may result in loss of function and disfigurement. This study tested a hypnosis intervention designed to reduce pain perception, enhance postsurgical recovery, and facilitate rehabilitation. Using a quasi-experimental research design, 60 hand-surgery patients received either usual treatment or usual treatment plus hypnosis. After controlling for gender, race, and pretreatment scores, the hypnosis group showed significant decreases in measures of perceived pain intensity (PPI), perceived pain affect (PPA), and state anxiety. In addition, physician's ratings of progress were significantly higher for experimental subjects than for controls, and the experimental group had significantly fewer medical complications. These results suggest that a brief hypnosis intervention may reduce orthopedic hand-surgery patients' postsurgical PPI, PPA, and anxiety; decrease comorbidity; and enhance postsurgical recovery and rehabilitation. However, true experimental research designs with other types of controls must be employed to determine more fully the contribution of hypnosis to improved outcome

Da circulação de crianças à adoção internacional: questões de pertencimento e posse From child circulation to international adoption: questions of ownership and belonging

Nesse artigo, examino uma prática local - a circulação de crianças em bairros populares de uma grande cidade brasileira - à luz do contexto mais amplo que inclui a adoção nacional e internacional. Inicio com a descrição etnográfica de redes de ajuda mútua e valores familiares de duas mulheres que, por causa de extrema miséria, confiaram seus filhos aos cuidados de outrem. Procuro entender como essas mulheres significam a "circulação" de suas crianças e, num segundo momento, pergunto se, no seu entendimento, as leis regendo a adoção legal seriam inteligíveis. Finalmente, teço uma curta reflexão sobre discursos encontrados entre europeus e norte-americanos que recorrem à adoção, questionando a aplicação diferencial desses discursos no âmbito internacional.<br>In this article, I examine a local practice - the circulation of children in working-class neighborhoods of a large Brazilian city - by situating it within a wider context which includes national and international adoption. I begin with the ethnographic description on mutual help networks and family-related values of two poverty-stricken women who have given their children to be raised by others. I then seek to understand the place child placement holds in the life experience of these women, and, by extension, the way laws governing legal adoption connect with their way of seeing the process. Finally, in the light of this ethnographic material on "child donors", I weave a short reflection on discourses held by Europeans and North Americans on adoption, questioning the particular way these discourses filter through to and operate on the international arena

High-throughput screening in niche-based assay identifies compounds to target preleukemic stem cells

International audienc

Sex differences in oncogenic mutational processes

Funder: Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada (NSERC Canadian Network for Research and Innovation in Machining Technology); doi: https://doi.org/10.13039/501100002790Funder: Genome Canada (Génome Canada); doi: https://doi.org/10.13039/100008762Funder: Canada Foundation for Innovation (Fondation canadienne pour l'innovation); doi: https://doi.org/10.13039/501100000196Funder: Terry Fox Research Institute (Institut de Recherche Terry Fox); doi: https://doi.org/10.13039/501100004376Abstract: Sex differences have been observed in multiple facets of cancer epidemiology, treatment and biology, and in most cancers outside the sex organs. Efforts to link these clinical differences to specific molecular features have focused on somatic mutations within the coding regions of the genome. Here we report a pan-cancer analysis of sex differences in whole genomes of 1983 tumours of 28 subtypes as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium. We both confirm the results of exome studies, and also uncover previously undescribed sex differences. These include sex-biases in coding and non-coding cancer drivers, mutation prevalence and strikingly, in mutational signatures related to underlying mutational processes. These results underline the pervasiveness of molecular sex differences and strengthen the call for increased consideration of sex in molecular cancer research