Correlation of Puma airloads: Evaluation of CFD prediction methods

A cooperative program was undertaken by research organizations in England, France, Australia and the U.S. to study the capabilities of computational fluid dynamics codes (CFD) to predict the aerodynamic loading on helicopter rotor blades. The program goal is to compare predictions with experimental data for flight tests of a research Puma helicopter with rectangular and swept tip blades. Two topics are studied. First, computed results from three CFD codes are compared for flight test cases where all three codes use the same partial inflow-angle boundary conditions. Second, one of the CFD codes (FPR) is iteratively coupled with the CAMRAD/JA helicopter performance code. These results are compared with experimental data and with an uncoupled CAMRAD/JA solution. The influence of flow field unsteadiness is found to play an important role in the blade aerodynamics. Alternate boundary conditions are suggested in order to properly model this unsteadiness in the CFD codes

The Effect of Education on Tendency of Demand for Maternal Health Care Services in Cameroon

The objective of this study is to show the effect of Education on tendency of demand for maternal health care services in Cameroon This study is based on data from health and demographic survey using multiple indicators realized in Cameroon in 2004 and 2011 It is based on many statistical tests and economic models the analysis of decomposition multinomial regressions to explain and understand of this effect The results obtained can be summarized as follows At the descriptive level the decomposition analysis reveals that between 2004 and 2011 the proportion of women who have demanded prenatal health care services delivery services according to the level of education has dropped lightly dropped with 3 and 4 respectively meanwhile within the same period the proportion of women who have demanded postnatal health services according to the level of education has increased by 8 The explanatory analysis reveals that the educational level of the woman has a significant effect on the demand for maternal health care service

Inducing sadness and anxiousness through visual media: measurement techniques and persistence

The persistence of negative moods (sadness and anxiousness) induced by three visual Mood Induction

Remember the Nurses

As feminist theory explicates its fundamental principles – justice for the oppressed – it can lose its essential focus on the situation of women. One example is the inattention to nurses within feminist bioethics. Nurses deserve attention because most are women, but also because their lack of power is paradigmatic of patriarchy. Those examining ethics consultations should discuss whether nurses are allowed to request them. But feminists also need to imagine ways in which nurses can be heard when, for instance, their worklives are “redesigned.” Doing so would also allow attention to other classes of the disempowered

Double Burden of Malnutrition Among Migrants and Refugees in Developed Countries

Background: The double burden of malnutrition (DBM) increases the risk of developing non-communicable diseases among migrant and refugee populations living in developed countries. This systematic review aims to examine the DBM among migrants and refugees in developed countries. It aims to appraise, synthesise, and summarise literature to create an evidence base that looks at multiple faces of DBM. Methods/Design: This protocol is informed by the standard Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P) guidelines. A systematic review of peer-reviewed quantitative, qualitative and mixed-methods studies on DBM among migrants and refugees in developed countries will be undertaken. The review will include only studies published in English. Eight bibliographic databases will be searched: Ovid MEDLINE, EMBASE, PsycINFO, CINAHL, ProQuest, Scopus, PubMed, and web of science. Grey literature will also be searched. Studies that meet the inclusion criteria will be imported to Covidence. Screening for eligible studies will be conducted by two independent researchers. The quality of included studies will be appraised for risk of bias using validated tools. A narrative synthesis approach will be undertaken to report retrieved data. Discussion: The protocol provides insight into the scope and parameters of the systematic review to be conducted

A multimodal corpus for the evaluation of computational models for (grounded) language acquisition

Gaspers J, Panzner M, Lemme A, Cimiano P, Rohlfing K, Wrede S. A multimodal corpus for the evaluation of computational models for (grounded) language acquisition. In: EACL Workshop on Cognitive Aspects of Computational Language Learning. 2014

Evaluating the Content and Usability of an Experimental Text Summarization System and Three Web-Based Search Engines

This paper describes the evaluation of a new automated text summarization system, Centrifuser. This system provides information to patients and families relevant to their specific health questions. Centrifuser accepts queries about health conditions, and produces a summary of information from articles retrieved by a standard search engine that is tailored to the user's question. The evaluation involved audio- and video-recording of all subject interactions with the interfaces in situ at a hospital. Subjects, consisting of friends or family of hospitalized patients, were asked to “think aloud” as they interacted with Centrifuser and three commonly used search engines: Google, Yahoo, and About.com. Results of the evaluation show that subjects found Centrifuser's summarization capability useful and easy to understand. In comparing Centrifuser to the three search engines, subjects' ratings varied; however, specific interface features were deemed useful across interfaces. We conclude with a discussion of the implications for engineering Web-based retrieval systems

The effect of HIV infection on time off work in a large cohort of gold miners with known dates of seroconversion

Objectives To estimate the effect of HIV infection on time off work. To provide baseline estimates for economic and actuarial models, and for evaluations of ART and other workplace interventions.Methods A retrospective cohort study of gold miners with known dates of seroconversion to HIV, and an HIV-negative comparison group, used routinely collected data to estimate the proportion of time off work by calendar period (1992-2002, prior to the introduction of ART), age, time since seroconversion and period before death. The authors calculated ORs for overall time off work and RR ratios (RRR, using multinomial logistic regression) for reasons off work relative to being at work.Results 1703 HIV-positive and 4859 HIV-negative men were followed for 34 424 person-years. HIV-positive miners spent a higher proportion of time off work than negative miners (20.7% vs 16.1%) due to greater medical and unauthorised absence. Compared with HIV-negative miners, overall time off work increased in the first 2 years after seroconversion (adjusted OR 1.40 (95% CI 1.36 to 1.45)) and then remained broadly stable for a number years, reaching 38.8% in the final year before death (adjusted OR 3.27, 95% CI 2.95 to 3.63). Absence for medical reasons showed the strongest link to HIV infection, increasing from an adjusted RRR of 2.66 (95% CI 2.45 to 2.90) for the first 2 years since seroconversion to 13.6 (95% CI 11.8 to 15.6) in the year prior to death.Conclusions Time off work provides a quantifiable measure of the effect of HIV on overall morbidity. HIV/AIDS affects both labour supply (increased time off work) and demand for health services (increased medical absence). The effects occur soon after seroconversion and stabilise before reaching very high levels in the period prior to death. Occupational health services are an important setting to identify HIV-infected men early