70 research outputs found
Globalization and Latino labor: Labor advocates' accounts of meatpacking in rural Missouri
Includes bibliographical references.The Latinos in Missouri occasional paper series grew out of the writing experiences of graduate students in Rural Sociology 406: The Sociology of Globalization.This paper presents labor advocates' accounts of the common problems faced by Latino/a workers employed in the Missouri meatpacking industry and the potential strategies they identify for addressing them. Information is drawn from participatory observation, document analysis and qualitative interviews. Placed in the context of globalization of the agrifood system and the increasingly problematic position of wage laborers, these accounts are discussed using a theoretical framework based on Karl Polanyi's concept of fictitious commodities. In this study we investigate what labor advocates have to say about the situation faced by Latino workers employed in Missouri meatpacking plants. In the next section, we present an overview of the global agri-food system with specific attention to the meatpacking industry. This is followed by a discussion of Karl Polanyi's (1944) concept of "fictitious commodities," which we use here as a theoretical framework to provide insight into the situation faced by Latino workers in meatpacking. We then examine, in two sections, the problems expressed by labor advocates in Missouri and the proposals for changes they suggest. To conclude, we return to Polanyi's fictitious commodity framework as a way of understanding these issues more fully. Specifically, this theoretical framework supports the argument we make that Latino labor must be able to organize and unionize to correct unfair labor practices that currently exist in the state and the industry as a whole.Occasional Paper Series Developed with Support from the Cambio Center
Latinos in Missouri : occasional paper series
The "Latinos in Missouri" occasional paper series grew from the writing experiences of graduate students in Rural Sociology 8287: The Sociology of Globalization. Students in the class wrote term papers about issues related to the growth of the Latino population in the state as an aspect of globalization. Typically, the papers were developed over the semester by making contact with Latino immigrants for in-depth interviews, although some papers make use of secondary data, such as the U.S. Census. Two of the student editors reviewed each of the papers. Student editors then returned the papers to the authors with their suggestions. After those revisions were incorporated, Dr. Elizabeth Barham edited each paper one more time, returning it to the author with her final editorial comments. When those changes were made, the papers were posted to the Web. While the class papers are limited in length and scope, they represent a substantial amount of work on the authors' parts that generally goes well beyond a typical class requirement. They were written in the hope that they will be read and used by policymakers, agency personnel, service providers, teachers, community leaders and anyone concerned with the well-being of Latino immigrants in Missouri and indeed the nation.Includes bibliographical references
Investigating the potential of African land snail shells (Gastropoda: Achatininae) for amino acid geochronology
EUS-derived criteria for distinguishing benign from malignant metastatic solid hepatic masses
Background
Detection of hepatic metastases during EUS is an important component of tumor staging.
Objective
To describe our experience with EUS-guided FNA (EUS-FNA) of solid hepatic masses and derive and validate criteria to help distinguish between benign and malignant hepatic masses.
Design
Retrospective study, survey.
Setting
Single, tertiary-care referral center.
Patients
Medical records were reviewed for all patients undergoing EUS-FNA of solid hepatic masses over a 12-year period.
Interventions
EUS-FNA of solid hepatic masses.
Main Outcome Measurements
Masses were deemed benign or malignant according to predetermined criteria. EUS images from 200 patients were used to create derivation and validation cohorts of 100 cases each, matched by cytopathologic diagnosis. Ten expert endosonographers blindly rated 15 initial endosonographic features of each of the 100 images in the derivation cohort. These data were used to derive an EUS scoring system that was then validated by using the validation cohort by the expert endosonographer with the highest diagnostic accuracy.
Results
A total of 332 patients underwent EUS-FNA of a hepatic mass. Interobserver agreement regarding the initial endosonographic features among the expert endosonographers was fair to moderate, with a mean diagnostic accuracy of 73% (standard deviation 5.6). A scoring system incorporating 7 EUS features was developed to distinguish benign from malignant hepatic masses by using the derivation cohort with an area under the receiver operating curve (AUC) of 0.92; when applied to the validation cohort, performance was similar (AUC 0.86). The combined positive predictive value of both cohorts was 88%.
Limitations
Single center, retrospective, only one expert endosonographer deriving and validating the EUS criteria.
Conclusion
An EUS scoring system was developed that helps distinguish benign from malignant hepatic masses. Further study is required to determine the impact of these EUS criteria among endosonographers of all experience
Gut Flora Metabolism of Phosphatidylcholine Promotes Cardiovascular Disease
Metabolomics studies hold promise for the discovery of pathways linked to disease processes. Cardiovascular disease (CVD) represents the leading cause of death and morbidity worldwide. Here we used a metabolomics approach to generate unbiased small-molecule metabolic profiles in plasma that predict risk for CVD. Three metabolites of the dietary lipid phosphatidylcholine—choline, trimethylamine N-oxide (TMAO) and betaine—were identified and then shown to predict risk for CVD in an independent large clinical cohort. Dietary supplementation of mice with choline, TMAO or betaine promoted upregulation of multiple macrophage scavenger receptors linked to atherosclerosis, and supplementation with choline or TMAO promoted atherosclerosis. Studies using germ-free mice confirmed a critical role for dietary choline and gut flora in TMAO production, augmented macrophage cholesterol accumulation and foam cell formation. Suppression of intestinal microflora in atherosclerosis-prone mice inhibited dietary-choline-enhanced atherosclerosis. Genetic variations controlling expression of flavin monooxygenases, an enzymatic source of TMAO, segregated with atherosclerosis in hyperlipidaemic mice. Discovery of a relationship between gut-flora-dependent metabolism of dietary phosphatidylcholine and CVD pathogenesis provides opportunities for the development of new diagnostic tests and therapeutic approaches for atherosclerotic heart disease
Após a licença maternidade: a percepção de professoras sobre a divisão das demandas familiares
Plasma lipid profiles discriminate bacterial from viral infection in febrile children
Fever is the most common reason that children present to Emergency Departments. Clinical signs and symptoms suggestive of bacterial infection are often non-specific, and there is no definitive test for the accurate diagnosis of infection. The 'omics' approaches to identifying biomarkers from the host-response to bacterial infection are promising. In this study, lipidomic analysis was carried out with plasma samples obtained from febrile children with confirmed bacterial infection (n = 20) and confirmed viral infection (n = 20). We show for the first time that bacterial and viral infection produces distinct profile in the host lipidome. Some species of glycerophosphoinositol, sphingomyelin, lysophosphatidylcholine and cholesterol sulfate were higher in the confirmed virus infected group, while some species of fatty acids, glycerophosphocholine, glycerophosphoserine, lactosylceramide and bilirubin were lower in the confirmed virus infected group when compared with confirmed bacterial infected group. A combination of three lipids achieved an area under the receiver operating characteristic (ROC) curve of 0.911 (95% CI 0.81 to 0.98). This pilot study demonstrates the potential of metabolic biomarkers to assist clinicians in distinguishing bacterial from viral infection in febrile children, to facilitate effective clinical management and to the limit inappropriate use of antibiotics
Plasma lipid profiles discriminate bacterial from viral infection in febrile children
Fever is the most common reason that children present to Emergency Departments. Clinical signs and symptoms suggestive of bacterial infection ar
Plasma lipid profiles discriminate bacterial from viral infection in febrile children
Fever is the most common reason that children present to Emergency Departments. Clinical signs and symptoms suggestive of bacterial infection are often non-specific, and there is no definitive test for the accurate diagnosis of infection. The 'omics' approaches to identifying biomarkers from the host-response to bacterial infection are promising. In this study, lipidomic analysis was carried out with plasma samples obtained from febrile children with confirmed bacterial infection (n = 20) and confirmed viral infection (n = 20). We show for the first time that bacterial and viral infection produces distinct profile in the host lipidome. Some species of glycerophosphoinositol, sphingomyelin, lysophosphatidylcholine and cholesterol sulfate were higher in the confirmed virus infected group, while some species of fatty acids, glycerophosphocholine, glycerophosphoserine, lactosylceramide and bilirubin were lower in the confirmed virus infected group when compared with confirmed bacterial infected group. A combination of three lipids achieved an area under the receiver operating characteristic (ROC) curve of 0.911 (95% CI 0.81 to 0.98). This pilot study demonstrates the potential of metabolic biomarkers to assist clinicians in distinguishing bacterial from viral infection in febrile children, to facilitate effective clinical management and to the limit inappropriate use of antibiotics
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