503 research outputs found

    Review of \u3ci\u3eNorwegians and Swedes in the United States: Friends and Neighbors\u3c/i\u3e edited by Philip J. Anderson and Dag Blanck

    Get PDF
    Norwegians and Swedes is an international and interdisciplinary collection of essays representing recent scholarship on migration and emphasizing relationships between two groups of nineteenth- and early twentieth-century immigrants from Europe. Emerging from a 2007 conference, the book contains seventeen essays by active scholars in Sweden, Norway, Denmark, and the United States. Donna R. Gabaccia\u27s thoughtful foreword helps frame the book and informs readers that twenty years ago Rudolph J. Vecoli called for an interethnic perspective on American immigration history. This collection might be seen as the fruit of that vision. Emerging at! a time when immigration continues to vex the nation, this collection shows a path for future projects on interethnicity or panethnicity. Norwegians and Swedes possessed both common ground in geography, history, language, culture, and tensions in their political history; and both crossed the Atlantic. The dynamic intersections of the commonalities and tensions form the core of this fine book

    Review of \u3ci\u3eNorwegians and Swedes in the United States: Friends and Neighbors\u3c/i\u3e edited by Philip J. Anderson and Dag Blanck

    Get PDF
    Norwegians and Swedes is an international and interdisciplinary collection of essays representing recent scholarship on migration and emphasizing relationships between two groups of nineteenth- and early twentieth-century immigrants from Europe. Emerging from a 2007 conference, the book contains seventeen essays by active scholars in Sweden, Norway, Denmark, and the United States. Donna R. Gabaccia\u27s thoughtful foreword helps frame the book and informs readers that twenty years ago Rudolph J. Vecoli called for an interethnic perspective on American immigration history. This collection might be seen as the fruit of that vision. Emerging at! a time when immigration continues to vex the nation, this collection shows a path for future projects on interethnicity or panethnicity. Norwegians and Swedes possessed both common ground in geography, history, language, culture, and tensions in their political history; and both crossed the Atlantic. The dynamic intersections of the commonalities and tensions form the core of this fine book

    Common structuring principles of the Drosophila melanogaster microbiome on a continental scale and between host and substrate

    Get PDF
    Summary The relative importance of host control, environmental effects and stochasticity in the assemblage of host-associated microbiomes is being debated. We analysed the microbiome among fly populations that were sampled across Europe by the European Drosophila Population Genomics Consortium (DrosEU). In order to better understand the structuring principles of the natural D. melanogaster microbiome, we combined environmental data on climate and food-substrate with dense genomic data on host populations and microbiome profiling. Food-substrate, temperature, and host population structure correlated with microbiome structure. Microbes, whose abundance was co-structured with host populations, also differed in abundance between flies and their substrate in an independent survey. This finding suggests common, host-related structuring principles of the microbiome on different spatial scales

    Case It! - a collaborative BioQUEST project to enhance case-based learning in university and high school biology education worldwide via molecular biology computer simulations and Internet conferencing

    Get PDF
    Case It! is a National Science Foundation-sponsored project initiated by participants in the BioQUEST Curriculum Consortium. The goal of this project is to enhance case-based learning in high school and university biology courses worldwide via molecular biology computer simulations and Internet "poster sessions". Students first play the roles of laboratory technicians as they analyze DNA sequences associated with particular cases and construct web page posters giving results of genetic testing. They then play the roles of genetics counsellors and family members as they ask and answer questions concerning these tests. To accomplish this, students use three software tools: Case It! Investigator1 to gather background information, the Case It! simulation2 to analyze DNA, and the Case It! Launch Pad3 to access a web page editor and Internet conferencing system. (Note: The latest versions of both the Macintosh and PC versions of Case It! Investigator and the Case It! simulation are currently available for downloading4, free of charge for educational use. These two applications are also part of the BioQUEST Library of inquiry-based software.) Although the Case It! simulation works with any DNA sequence, we have concentrated on human genetic disease cases because of the high degree of student interest in these cases and ethical ramifications which make them particularly well suited for spirited discussion and debate. Cases developed and class-tested to date include Alzheimer's disease, breast cancer, sickle-cell disease, muscular dystrophy, cystic fibrosis, phenylketonuria, Huntington's disease, and fragile-X syndrome

    Comparative population genomics of latitudinal variation in \u3ci\u3eDrosophila simulans\u3c/i\u3e and \u3ci\u3eDrosophila melanogaster\u3c/i\u3e

    Get PDF
    Examples of clinal variation in phenotypes and genotypes across latitudinal transects have served as important models for understanding how spatially varying selection and demographic forces shape variation within species. Here, we examine the selective and demographic contributions to latitudinal variation through the largest comparative genomic study to date of Drosophila simulans and Drosophila melanogaster, with genomic sequence data from 382 individual fruit flies, collected across a spatial transect of 19 degrees latitude and at multiple time points over 2 years. Consistent with phenotypic studies, we find less clinal variation in D. simulans than D. melanogaster, particularly for the autosomes. Moreover, we find that clinally varying loci in D. simulans are less stable over multiple years than comparable clines in D. melanogaster. D. simulans shows a significantly weaker pattern of isolation by distance than D. melanogaster and we find evidence for a stronger contribution of migration to D. simulans population genetic structure. While population bottlenecks and migration can plausibly explain the differences in stability of clinal variation between the two species, we also observe a significant enrichment of shared clinal genes, suggesting that the selective forces associated with climate are acting on the same genes and phenotypes in D. simulans and D. melanogaster. Includes supplementary materials

    Comparative population genomics of latitudinal variation in \u3ci\u3eDrosophila simulans\u3c/i\u3e and \u3ci\u3eDrosophila melanogaster\u3c/i\u3e

    Get PDF
    Examples of clinal variation in phenotypes and genotypes across latitudinal transects have served as important models for understanding how spatially varying selection and demographic forces shape variation within species. Here, we examine the selective and demographic contributions to latitudinal variation through the largest comparative genomic study to date of Drosophila simulans and Drosophila melanogaster, with genomic sequence data from 382 individual fruit flies, collected across a spatial transect of 19 degrees latitude and at multiple time points over 2 years. Consistent with phenotypic studies, we find less clinal variation in D. simulans than D. melanogaster, particularly for the autosomes. Moreover, we find that clinally varying loci in D. simulans are less stable over multiple years than comparable clines in D. melanogaster. D. simulans shows a significantly weaker pattern of isolation by distance than D. melanogaster and we find evidence for a stronger contribution of migration to D. simulans population genetic structure. While population bottlenecks and migration can plausibly explain the differences in stability of clinal variation between the two species, we also observe a significant enrichment of shared clinal genes, suggesting that the selective forces associated with climate are acting on the same genes and phenotypes in D. simulans and D. melanogaster. Includes supplementary materials

    A Stress Management App Intervention for Cancer Survivors: Design, Development, and Usability Testing

    Get PDF
    Background: Distress is prevalent in cancer survivors. Stress management interventions can reduce distress and improve quality of life for cancer patients, but many people with cancer are unfortunately not offered or able to attend such in-person stress management interventions. Objective: The objective of this study was to develop an evidence-based stress management intervention for patients living with cancer that can be delivered electronically with wide reach and dissemination. This paper describes the design and development process of a technology-based stress management intervention for cancer survivors, including the exploration phase, intervention content development, iterative software development (including design, development, and formative evaluation of low- and high-level prototypes), and security and privacy considerations. Methods: Design and development processes were iterative and performed in close collaboration with key stakeholders (N=48). In the exploration phase, identifying needs and requirements for the intervention, 28 participants gave input, including male and female cancer survivors (n=11) representing a wide age range (31-81 years) and cancer diagnoses, healthcare providers (n=8) including psychosocial oncology experts, and eHealth experts (n=9) including information technology design and developers. To ensure user involvement in each phase various user-centered design and service design methods were included, such as interviews, usability testing, and think aloud processes. Overall, participants were involved usability testing in the software development and formative evaluation phase, including cancer survivors (n=6), healthy volunteers (n=7), health care providers (n=2), and eHealth experts (n=5). Intervention content was developed by stress management experts based on well-known cognitive behavioral stress management strategies and adjusted to electronic format through multiple iterations with stakeholders. Privacy and security issues were considered throughout. Results: The design and development process identified a variety of stakeholder requirements. Cancer survivors preferred stress management through a mobile app rather than through a personal computer (PC) and identified usefulness, easy access, user friendliness, use of easily understandable language, and many brief sections rather than longer ones as important components of the intervention. These requirements were also supported by recommendations from health care providers and eHealth experts. The final intervention was named StressProffen and the hospital Privacy and Security Protection Committee was part of the final intervention approval to also ensure anchoring in the hospital organization. Conclusions: Interventions, even evidence-based, have little impact if not actively used. This study illustrates how user-centered design and service design can be applied to identify and incorporate essential stakeholder aspects in the entire design and development process. In combination with evidence-based concepts, this process facilitated development of a stress management intervention truly designed for the end users, in this case, cancer survivors. Trial Registration: ClinicalTrials.gov NCT02939612; https://clinicaltrials.gov/ct2/show/NCT02939612 (Archived at WebCite at http://www.webcitation.org/71l9HcfcB

    Orthodontic tooth movement enhancing bony apposition in alveolar bony defect: a case report

    Get PDF
    Introduction: Prevalence of complications from orthognathic surgery is relatively low but if it happens it is vital to manage the post complication bony defect appropriately. Case Presentation: This case report describes a 20-year-old gentleman who suffered from a complication from a bimaxillary orthognathic surgery. A bone grafting was carried out to repair the bony defect from the surgery but it was unsuccessful. A non-invasive technique employing the use of very light orthodontic force with a laceback stainless steel ligature is described and a successful space closure with an improvement in the periodontal condition and bone apposition has been shown. Conclusion: This technique can be considered if orthodontic tooth movement is needed across a deficient alveolar ridge. © 2009 Hibino and Wong; licensee BioMed Central Ltd.published_or_final_versio
    • …
    corecore