5,634 research outputs found

    IMPACT OF EXPORTS ON THE U.S. BEEF INDUSTRY

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    Policy and programmatic decisions dealing with beef exports require good information as to the impact of exports on the domestic beef industry. This paper utilizes a partial equilibrium model of the world beef market to assess the impacts on the U.S. beef sector of increases in real income in major beef importing countries, the impacts of changes in the prices of pork and poultry products, and the impacts of changes in the price of feedgrains. A one percent increase in real GDP in Canada, Japan, Mexico, and South Korea yielded a 1.6 percent increase in U.S. exports of high-quality beef. This increase in exports leads to approximately a 29.2 million pound increase U.S. beef production on a retail weight basis. The increase in export demand also yields an increase in beef prices of approximately 0.275percwt.ona0.275 per cwt. on a 120 box of beef and 0.18percwtona0.18 per cwt on a 70 fed steer. One percent increases in the prices of pork and poultry products yield a smaller 0.8 percent increase in U.S. beef exports, but also lead to a 1.5 percent increase in U.S. imports of low-quality beef. This is due to U.S. consumers viewing low-quality beef as a substitute for pork and poultry. Finally, a one percent increase in the price of feedgrains reduces U.S. beef exports by 0.4 percent. This is due to a reduction in U.S. beef production from the increased feeding costs.International Relations/Trade, Livestock Production/Industries,

    Geometrically nonlinear analysis of adhesively bonded joints

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    A geometrically nonlinear finite element analysis of cohesive failure in typical joints is presented. Cracked-lap-shear joints were chosen for analysis. Results obtained from linear and nonlinear analysis show that nonlinear effects, due to large rotations, significantly affect the calculated mode 1, crack opening, and mode 2, inplane shear, strain-energy-release rates. The ratio of the mode 1 to mode 2 strain-energy-relase rates (G1/G2) was found to be strongly affected by he adhesive modulus and the adherend thickness. The ratios between 0.2 and 0.8 can be obtained by varying adherend thickness and using either a single or double cracked-lap-shear specimen configuration. Debond growth rate data, together with the analysis, indicate that mode 1 strain-energy-release rate governs debond growth. Results from the present analysis agree well with experimentally measured joint opening displacements

    An examination of responses to surveys among Filipino-Australian migrants

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    © 2016 RCNi Ltd. All rights reserved. Background Surveys are frequently used to collect data. Although paper surveys are commonly used, online surveys are gaining in popularity, with the inclusion of open-ended questions (OEQs) allowing respondents to freely express their views. Little is known about how Filipino-Australian migrants respond to surveys. There is some concern about the usefulness of OEQs administered to culturally and linguistically diverse migrants, who may have limited capacity to articulate their thoughts in writing. Aim To examine the responses of Filipino-Australian migrants to a survey. Discussion A total of 552 respondents were recruited, of whom 428 (78%) completed the questionnaire online. The overall response rate to the OEQs was 69%, with higher completion rates among those given a paper-based questionnaire and those with university educations. Conclusion Filipino migrants with functional English language skills responded well to the online survey. Paper-based administration elicited more OEQ responses, which is attributed to greater interaction between participants and researchers. Those with university educations may have more capacity to express themselves in English and were therefore more likely to complete the OEQs. Implications for practice The high response rate obtained in this study suggests that among Filipino-Australian migrants who rated their English language skills and educational level highly, the translation of OEQs may not be necessary. This has important implications for resources in research. Face-to-face interaction between participants and researchers is an important strategy for increasing the rates of response to OEQs

    Piliation of Invasive Streptococcus pneumoniae Isolates in the Era before Pneumococcal Conjugate Vaccine Introduction in Malawi

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    The pneumococcal pilus has been shown to be an important determinant of adhesion and virulence in mouse models of colonization, pneumonia, and bacteremia. A pilus is capable of inducing protective immunity, supporting its inclusion in next-generation pneumococcal protein vaccine formulations. Whether this vaccine target is common among pneumococci in sub-Saharan Africa is uncertain. To define the prevalence and genetic diversity of type I and II pili among invasive pneumococci in Malawi prior to the introduction of the 13-valent pneumococcal conjugate vaccine (PCV13) into routine childhood immunization, we examined 188 Streptococcus pneumoniae isolates collected between 2002 and 2008 (17% serotype 1). In this region of high disease burden, we found a low frequency of invasive piliated pneumococci (14%) and pilus gene sequence diversity similar to that seen previously in multiple global pneumococcal lineages. All common serotypes with pilus were covered by PCV13 and so we predict that pilus prevalence will be reduced in the Malawian pneumococcal population after PCV13 introduction

    Health-Seeking Behaviors of Filipino Migrants in Australia: The Influence of Persisting Acculturative Stress and Depression

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    © 2015, Springer Science+Business Media New York. This study examined the relationships among the constructs of acculturative stress, depression, English language use, health literacy, and social support and the influence of these factors on health-seeking behaviors of Filipino Australians. Using a self-administered questionnaire, 552 respondents were recruited from November 2010 to June 2011. Structural equation modelling was used to examine relationships. A direct and negative relationship between health-seeking behaviors and depression, and an indirect relationship with acculturative stress, was observed mediated through depression. Social support had an important moderating influence on these effects. Although there was an inverse relationship between age and English language usage and depression, age was positively related to health-seeking behavior. Despite their long duration of stay, Filipino Australian migrants continue to experience acculturative stress and depression leading to lower health-seeking behaviors. This study highlights the importance of screening for acculturative stress and depression in migrants and fostering social support

    Reality in quantum mechanics, Extended Everett Concept, and consciousness

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    Conceptual problems in quantum mechanics result from the specific quantum concept of reality and require, for their solution, including the observer's consciousness into quantum theory of measurements. Most naturally this is achieved in the framework of Everett's "many-worlds interpretation" of quantum mechanics. According to this interpretation, various classical alternatives are perceived by consciousness separately from each other. In the Extended Everett Concept (EEC) proposed by the present author, the separation of the alternatives is identified with the phenomenon of consciousness. This explains classical character of the alternatives and unusual manifestations of consciousness arising "at the edge of consciousness" (i.e. in sleep or trance) when its access to "other alternative classical realities" (other Everett's worlds) becomes feasible. Because of reversibility of quantum evolution in EEC, all time moments in the quantum world are equivalent while the impression of flow of time appears only in consciousness. If it is assumed that consciousness may influence onto probabilities of alternatives (which is consistent in case of infinitely many Everett's worlds), EEC explains free will, "probabilistic miracles" (observing low-probability events) and decreasing entropy in the sphere of life.Comment: 17 pages, 2 figures in EP
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