12,982 research outputs found
Ultrasonic Measurement of Formability in Thin Ferritic Steel Sheet
The formability of rolled sheet metal is strongly influenced by the texture of the polycrystalline metal. For steel sheet, it is desirable to have high drawability to make automobile body parts, etc. In addition, material homogeneity is desired; that is, material cut from different parts of a rolled sheet should have the same plastic deformation when subjected to deep drawing
Health information needs, source preferences and engagement behaviours of women with metastatic breast cancer across the care continuum: protocol for a scoping review
INTRODUCTION: The health information needs, information source preferences and engagement behaviours of women with metastatic breast cancer (mBC) depend on personal characteristics such as education level, prior knowledge, clinical complications, comorbidities and where they are in the cancer journey. A thorough understanding of the information behaviours of women living with mBC is essential to the provision of optimal care. A preliminary literature review suggests that there is little research on this topic, but that there may be lessons from a slightly broader literature. This review will identify what is known and what is not known about the health information needs, acquisition and influences of women with mBC across the care continuum. Findings will help to identify research needs and specific areas where in-depth systematic reviews may be feasible, as well as inform evidence-based interventions to address the health information needs of female patients with mBC with different demographics and characteristics and across the mBC journey. METHODS AND ANALYSIS: A scoping review will be performed using the guidelines of Arksey and O'Malley as updated by subsequent authors to systematically search scientific and grey literature for articles in English that discuss the health information needs, source preferences, engagement styles, and associated personal and medical attributes of women â„18â
years living with mBC at different stages of the disease course. A variety of databases (including Cumulative Index to Nursing and Allied Health Literature (CINAHL), PubMed, Excerpta Medica Database (EMBASE), Academic Search Premier, Cochrane Database of Systematic Reviews, PsycINFO, Health Source: Nursing/Academic Edition, and PQDT Open), oncology, patient advocacy and governmental websites will be searched from inception to present day. Research and non-research literature will be included; no study designs will be excluded. The six-stage Arksey and O'Malley scoping review methodological framework involves: (1) identifying the research question; (2) searching for relevant studies; (3) selecting studies; (4) charting the data; (5) collating, summarising and reporting the results; and (6) consulting with stakeholders to inform or validate study findings (optional). Data will be extracted and analysed using a thematic chart and descriptive content analysis. ETHICS AND DISSEMINATION: Being a secondary analysis, this research will not require ethics approval. Results will be disseminated through patient support organisations and websites and publications targeting healthcare professionals, advocates and patients
Nature, origin and evolution of a Late Pleistocene incised valley-fill, Sunda Shelf, Southeast Asia
Growth differentiation factor 9: bone morphogenetic protein 15 synergism and the potential involvement of heterodimerization
LetterDavid G. Mottershead, Craig A. Harrison, Thomas D. Mueller, Peter G. Stanton, Robert B. Gilchrist and Kenneth P. McNatt
Blood pressure control in hypertensive patients within Family Health Program versus at Primary Healthcare Units: analytical cross-sectional study
SUCI02 inhibits the erbB-2 tyrosine kinase receptor signaling pathway and arrests the cell cycle in G 1 phase in breast cancer cells
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73321/1/j.1349-7006.2006.00143.x.pd
A statistical model of the international spread of wild poliovirus in Africa used to predict and prevent outbreaks
Published versio
Study of the arboreal component in two areas of the Submontane Rainforest in Ubatuba, Sao Paulo State
We studied the floristic composition and structure of the arboreal component (trees, palms and ferns with DBH equal to or greater than 4.8 cm) of two plots of Lower Montane Rain Forest in Ubatuba, SP, one with a history of selective logging and the other more preserved. We sampled 50 families, 114 genera and 193 species (four undetermined). The richest families were Myrtaceae, Fabaceae, Lauraceae, Rubiaceae, Melastomataceae and Sapotaceae. In the disturbed plot we sampled 104 species, 72 genera and 39 families, and in the more preserved area, 152 species, 98 genera and 43 families. There were differences in species richness, in the prevalence of their succesional status and in the structure of the areas, and the multivariate analysis allowed recognition of two floristic blocks. Among all species, 33 were exclusive of the first plot and 95 were exclusive of the second plot. Almost half of the species (45%) occurred with only one or two individuals and 29 have some degree of rarity. Five species are in the category of vulnerable in the List of brazilian plant species threatened of extinction. The differences observed between the sites studied, as well as the occurrence of rare and endangered species highlight the importance of the conservation of the area.11231333
Detecting temporal and spatial effects of epithelial cancers with Raman spectroscopy.
PublishedJournal ArticleResearch Support, N.I.H., ExtramuralResearch Support, Non-U.S. Gov'tThis is the final version of the article. Available from Hindawi Publishing Corporation via the DOI in this record.Epithelial cancers, including those of the skin and cervix, are the most common type of cancers in humans. Many recent studies have attempted to use Raman spectroscopy to diagnose these cancers. In this paper, Raman spectral markers related to the temporal and spatial effects of cervical and skin cancers are examined through four separate but related studies. Results from a clinical cervix study show that previous disease has a significant effect on the Raman signatures of the cervix, which allow for near 100% classification for discriminating previous disease versus a true normal. A Raman microspectroscopy study showed that Raman can detect changes due to adjacent regions of dysplasia or HPV that cannot be detected histologically, while a clinical skin study showed that Raman spectra may be detecting malignancy associated changes in tissues surrounding nonmelanoma skin cancers. Finally, results of an organotypic raft culture study provided support for both the skin and the in vitro cervix results. These studies add to the growing body of evidence that optical spectroscopy, in this case Raman spectral markers, can be used to detect subtle temporal and spatial effects in tissue near cancerous sites that go otherwise undetected by conventional histology.The authors acknowledge the financial support of the
NCI/NIH (R01-CA95405 and R21-CA95995), as well
as the Howard Hughes Medical Institute (pre-doctoral
fellowship for MK). We would also like to thank the
doctors and staff at Vanderbilt University Medical Center
and Tri-state Womenâs Health for all their assistance
Critical appraisal skills of family physicians in Ontario, Canada
BACKGROUND: Our primary objective in this study was to measure family physicians' knowledge of the key elements that go into assessing the validity and interpreting the results in three different types of studies: i) a randomized controlled trial (RCT); ii) a study evaluating a diagnostic test; and iii) a systematic review (SR). Our secondary objectives were to determine the relationship between the above skills and age, gender, and type of practice. METHODS: We obtained a random sample of 1000 family physicians in Ontario from the College of Family Physicians of Canada database. These physicians were sent a questionnaire in the mail with follow-up mailings to non-responders at 3 and 8 weeks. The questionnaire was designed to measure knowledge and understanding of the basic concepts of critical appraisal skills. Based on the responses to the questions an Evidence Based Medicine (EBM) Knowledge Score was determined for each physician. RESULTS: A response rate of 30.2% was achieved. The respondents were younger and more likely to be recent graduates than the population of Ontario Family Physicians as a whole. This was an expected outcome. Just over 50% of respondents were able to answer questions concerning the critical appraisal of methods and the interpretation of results of research articles satisfactorily. The average score on the 12-point EBM Knowledge Scale was 6.4. The younger physicians scored higher than the older physicians, and academic physicians scored higher than community-based physicians. Scores of male and female physicians did not differ. CONCLUSIONS: We have shown that in a population of physicians which is younger than the general population of physicians, about 50% have reasonable knowledge regarding the critical appraisal of the methods and the interpretation of results of a research article. In general, younger physicians were more knowledgeable than were older physicians. EBM principles were felt to be important to the practice of medicine by 95% of respondents
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