895 research outputs found

    Brief 10: How the United Nations Should Promote the Post-2015 Development Agenda

    Get PDF
    This issue brief examines how the United Nations can most effectively communicate the post- 2015 development agenda in order to catalyze the global movements necessary for its achieve- ment. The author, a former U.N. communications professional, argues that the U.N. should care- fully calibrate expectations in advance, be transparent about the state of negotiations, retain top communications professionals to craft the name and narrative of the agenda, use clear language in the agenda, communicate in “human terms,” make the agenda globally accessible and relevant, and promote shared ownership of the agenda

    Proteomic patterns of cultured breast cancer cells and epithelial mammary cells.

    Get PDF
    Breast cancer is one of the leading causes of death from cancer among women in western countries. The different types of breast cancer are grouped into invasive and noninvasive forms. Among the invasive types, ductal infiltrating carcinoma (DIC) is the most common and aggressive form. Using an in vitro model consisting of a DIC-derived cell line (8701-BC) and a nontumoral mammary epithelial cell line (HB2), we used the proteomics approach to search for homology and differences in protein expression patterns between tumoral and nontumoral phenotypes. Within an analysis window comprising 1,750 discernible spots we have currently catalogued 140 protein spots of potential interest. Fifty-eight of them were identified by gel matching with reference maps, immunodetection, or N-terminal microsequencing and classified into four functional groups. Twelve proteins were found differentially expressed in two cell lines: four were uniquely present in the neoplastic cell proteome and eight in epithelial cells. In addition, 53 proteins displayed different relative expression levels between the two cell lines, that is, 44 were more elevated in cancer cells and 9 in HB2 cells. Among proteins with greater relative abundance in cancer cells we identified glycolytic enzymes (or their isoforms), which may indicate that the known metabolic dysregulation in cancer can reflect oncogenic-related defects of glycolytic gene expression

    X-ray Near Field Speckle: Implementation and Critical Analysis

    Get PDF
    We have implemented the newly-introduced, coherence-based technique of x-ray near-field speckle (XNFS) at 8-ID-I at the Advanced Photon Source. In the near field regime of high-brilliance synchrotron x-rays scattered from a sample of interest, it turns out, that, when the scattered radiation and the main beam both impinge upon an x-ray area detector, the measured intensity shows low-contrast speckles, resulting from interference between the incident and scattered beams. We built a micrometer-resolution XNFS detector with a high numerical aperture microscope objective and demonstrate its capability for studying static structures and dynamics at longer length scales than traditional far field x-ray scattering techniques. Specifically, we characterized the structure and dynamics of dilute silica and polystyrene colloidal samples. Our study reveals certain limitations of the XNFS technique, which we discuss.Comment: 53 pages, 16 figure

    Intuiting a Monsoonal Ethnography in Three Bay of Bengal Cities

    Get PDF
    This visual essay offers an exploration of monsoonal materiality and agency in the urban environments of three cities situated around the Bay of Bengal: Chennai, Dhaka and Yangon. The text and images emerge from a research project exploring intersections between changing monsoon climates and rapid urbanisation in South Asia. Multi-modal, more-than-human ethnography has been employed during the course of research to explore how the lively materiality of the monsoon is entangled within urban lived environments. The essay outlines the process of intuiting a monsoonal ethnography and conveys the power of immersive field experience. By collecting and curating an assemblage of visual material and fieldnotes, this piece seeks to evoke the materiality and agency of the monsoon, itself a complex assemblage that manifests in different ways in different places. The juxtaposition of image and text conveys the generative and multifaceted agency of the monsoon and the urban environments it becomes enmeshed within

    The durability of carbon fiber/epoxy composites under hydrothermal ageing

    Get PDF
    Studies on fibre reinforced composites are now receiving greater attention. Industrial applications have been successful in areas like aerospace, automobile, marine, construction and sporting goods. The first generation of epoxy resins for use in carbon fibre composites are able to achieve optimized high stiffness modules and high heat resistance by a high crosslink density, reached through thermal curing. However, these formulations can be very toxic and brittle with low crack resistance, which was a major disadvantage for structural applications. In the last years the use of ionizing radiation as alternative to thermal curing has been proposed as an environmentally friendly process. Furthermore, in order to enhance toughness mechanical requirements for their applications, the formulation generally consists of blends of epoxy resins and engineering thermoplastics. In terms of durability (service life and reliability), in these materials it depends on different environmental conditions (temperature, moisture, etc.), and it is very important to know how their properties are modified after the exposure to different temperature and moisture absorption cycles. In this work carbon fibre composites produced by ionizing radiation induced curing of the epoxy based matrices have been subjected to thermal and moisture absorption ageing and the influence of these treatments on the thermal and mechanical properties has been investigated through dynamic mechanical thermal analysis and mechanical fracture toughness tests

    The Biomolecules Journal Club: Highlights on Recent Papers 1

    Get PDF
    We are glad to share with you our first Journal Club and to highlight some of the most interesting papers published recently. We hope we will tease your curiosity and encourage you to read full papers outside of your research area, which you may not have read otherwise. The Biomolecules Scientific Board wishes you an exciting read

    Cancer pain management in an oncological ward in a comprehensive cancer center with an established palliative care unit.

    Get PDF
    Abstract BACKGROUND: This survey was performed to draw information on pain prevalence, intensity, and management from a sample of patients who were admitted to an oncologic center where a palliative care unit (PCU) has been established for 13 years. METHODS: Cross-sectional survey in an oncological department performed 1 day per month for six consecutive months. RESULTS: Of the 385 patients, 69.1, 19.2, 8.6, and 3.1 % had no pain, mild, moderate, and severe pain, respectively. Inpatients and patients with a low Karnofsky score showed higher levels of pain intensity (p < 0.0005). One hundred twenty-eight patients with pain or receiving analgesics were analyzed for pain management index (PMI). Only a minority of patients had negative PMI score, which was statistically associated with inpatient admission (p = 0.011). Fifty of these 128 patients had breakthrough pain (BTP), and all of them were receiving some medication for BTP. CONCLUSION: It is likely that the presence of PCU team providing consultation, advices, and cultural pressure, other than offering admissions for difficult cases had a positive impact on the use of analgesics, as compared with previous similar surveys performed in oncological setting, where a PCU was unavailable. This information confirms the need of the presence of a PCU in a high volume oncological department

    Geografie di oggi. Metodi e strategie tra ricerca e didattica

    Get PDF
    Questo volume è l’esito del confronto e delle riflessioni sviluppate durante il II Workshop “AIIG Giovani” organizzato a Roma nell’aprile del 2013. Nasce da un desiderio, quello di presentare l’importanza della combinazione tra metodi d’indagine tradizionali e nuovi per costruire sapere geografico, e da una passione, sostenuta dall’intreccio di relazioni umane che si evolvono nel tempo. Per chiarire quale possa essere il contributo della geografia alla comprensione del mondo contemporaneo, sempre più complesso, gli autori presentano le principali metodologie geografiche in quattro sezioni: “Territori della tecnologia”, “Identità, spazi, luoghi”, “Nodi della rete” e “Approcci sperimentali nella scuola che cambia”. Emerge dal lavoro un quadro multifocale che rispecchia la poliedricità e la trasversalità della geografia contemporanea, ancorato al comune bisogno di sviluppare strumenti interpretativi e d’azione. Ci si muove nell’ambito di una geografia critica e della complessità in grado di fornire ai cittadini globali differenti strumenti di interpretazione e comprensione del mondo, nuove metafore a partire dalle quali costruire e sperimentare forme alternative di cittadinanza consapevole ed attiva. Qui la geografia ritrova lo slancio di una disciplina fertile capace non solo di descrivere la Terra, ma anche di immaginare e creare nuovi mondi possibili. L’approdo naturale di questo percorso è la realtà scolastica dove è possibile sperimentare nuove forme di sapere e azione per rispondere alla sfida educativa contemporanea
    • …
    corecore