Risk factors associated with indicators of dehydration among migrant farmworkers.

OBJECTIVE: Farmworkers are at increased risk of adverse health outcomes related to occupational heat exposure and inadequate access to water, shade, or rest breaks. Presently, there is a dearth of studies examining the prevalence of dehydration and related factors in U.S. farmworkers. Our objectives were to characterize hydration status during typical workdays and to identify risk factors associated with increased dehydration in migrant farmworkers employed in Florida. METHODS: Urine samples were collected and analyzed for urine specific gravity (USG) 2-3 times per person per day over five days in May 2021 and 2022. Data collection included demographic characteristics, wet-bulb-globe-temperature (WBGT), and information on working conditions (task type, duration, and crop units harvested), fluid intake, clothing worn, and heat safety behaviors. Multivariable mixed regression models were used to evaluate risk factors associated with change in USG levels (continuous) during a work shift. RESULTS: A total of 111 farmworkers participated in this study providing 1020 cumulative USG measurements, of which 96.8% of end-of-shift USG samples were above 1.020 indicating potential dehydration. In multivariable models, dehydration assessed using change in USG levels significantly declined with age (ß = -0.078; 95%CI: 0.150, -0.006) but showed significant increase with body mass index (ß = 0.016; 95%CI: 0.003, 0.028), WGBT (ß = 0.054; 95%CI:0.044, 0.064), mean shift duration, and state of primary residence. We did not find significant associations of dehydration with type of clothing worn, intake of employer-provided water, or crop units harvested during a shift in this sample of farmworkers. CONCLUSION: Our findings underscore the need for additional research to evaluate adverse outcomes related to dehydration and to better understand recovery patterns from chronic dehydration across workweeks and harvest seasons in migrant farmworkers.

Determinants of Landscape Irrigation Water Use in Florida-Friendly Yards.

Efforts to mitigate outdoor water use in Florida's urban landscapes increasingly include promotion of regionally appropriate landscaping based on its documented effectiveness. Targeted initiatives, however, require an understanding of mechanisms underpinning low irrigation use in single-family homes with Florida-Friendly Landscaping (FFL). This paper reports survey research conducted in southwest Florida to identify factors associated with irrigation practices among FFL clients. Results indicate that approximately half of survey participants irrigated less frequently than once per week year-round. Aesthetic considerations, horticultural knowledge, and membership in a homeowner's association (HOA) with rules regarding yard care were key variables underlying landscape characteristics and maintenance, while property values, water conservation attitudes, lawn grass, and in-ground irrigation system use significantly predicted irrigation practices. Homes with in-ground irrigation systems were more than six times more likely to water their landscapes at least once per week during the warm season when residential outdoor water use is at its peak. A $100,000 increase in a home's market value increased the odds of weekly watering by a multiplicative factor of two, whereas a one-point increase in a six-item Likert scale used to measure a homeowner's water conservation attitude decreased the odds by 76%. Homes with no grass in the landscape were 71% less likely to water on a weekly basis. Providing homeowners, and HOAs, with educational resources that build on existing support for water conservation could augment adoption of low maintenance plants and sustainable practices in Florida's urban landscapes.

Perception of mind and dehumanization: Human, animal, or machine?

Dehumanization is reached through several approaches, including the attribute-based model of mind perception and the metaphor-based model of dehumanization. We performed two studies to find different (de)humanized images for three targets: Professional people, Evil people, and Lowest of the low. In Study 1, we examined dimensions of mind, expecting the last two categories to be dehumanized through denial of agency (Lowest of the low) or experience (Evil people), compared with humanized targets (Professional people). Study 2 aimed to distinguish these targets using metaphors. We predicted that Evil and Lowest of the low targets would suffer mechanistic and animalistic dehumanization, respectively; our predictions were confirmed, but the metaphor-based model nuanced these results: animalistic and mechanistic dehumanization were shown as overlapping rather than independent. Evil persons were perceived as "killing machines" and "predators." Finally, Lowest of the low were not animalized but considered human beings. We discuss possible interpretations.

Balancing the Ecological Function of Residential Stormwater Ponds with Homeowner Landscaping Practices.

Stormwater ponds are installed in urban developments to provide the ecosystem services of flood control and water treatment. In coastal areas, these ponds are connected to watersheds that can drain directly into protected estuaries, making their design, function, and maintenance critical to environmental protection. However, stormwater ponds in residential areas are increasingly managed as aesthetic amenities that add value to real estate rather than as engineered devices with special maintenance requirements. To help extend the life of neighborhood stormwater systems and improve ecosystem services, homeowners should follow best management practices for nutrient management and add shoreline plantings and non-invasive, beneficial aquatic plants to their ponds. This study used focus group and survey research to document the knowledge, behaviors, and attitudes of homeowners living near stormwater ponds in a master-planned community in Florida. The study was designed to use a social marketing research approach to promote Extension best practices. Findings indicate that many residents were aware of the functional components of stormwater systems and respondents' receptivity to best management practices was mediated by age, their attitudes about water quality and whether their home was adjacent to a pond. These findings can be used to target Extension audiences and improve adoption of stormwater pond best management practices for increased protection of water quality.

Molecular characterisation of acquired and overproduced chromosomal blaAmpC in Escherichia coli clinical isolates.

Escherichia coli recovered from three hospitals in Barcelona (Spain) were studied to determine the prevalence of isolates with acquired AmpC (ac-AmpC) and/or overproduced chromosomal AmpC (c-AmpC). Mechanisms involved in blac-AmpC overexpression, blaac-AmpC and the plasmids associated with their distribution as well as the prevalence of plasmid-mediated quinolone resistance (PMQR) in AmpC-producing isolates were also determined. Isolates were selected according to their resistance phenotype. blaac-AmpC, alterations in the blac-AmpC promoter/attenuator, and PMQR genes [qnrA, qnrB, qnrS, aac(6')-Ib-cr and qepA] were characterised by PCR and sequencing. blac-AmpC expression was determined by qRT-PCR. Population structure analysis was performed using PFGE, MLST and phylogenetic group PCR. Plasmids carrying blaac-AmpC were characterised by PCR-based replicon typing and S1-PFGE. IncI1 and IncF plasmids were also analysed by plasmid MLST and replicon sequence typing, respectively. Among 21563 E. coli isolates, 240 (1.1%) overproduced AmpC ß-lactamases, including 180 (75.0%) harbouring ac-AmpC (132 CMY-2 variants and 48 DHA-1) and 60 (25.0%) c-AmpC enzymes. Three mutation profiles in the blac-AmpC promoter/attenuator were associated with a 72.5-, 19.9- and 5.8-fold increased expression, respectively. Moreover, 63.3% of ac-AmpC and 43.3% of c-AmpC isolates belonged to B2, D, E or F phylogenetic groups. PMQR was found in 31% of ac-AmpC isolates [38 qnrB4, 8 aac(6')-Ib-cr, 6 qnrS1 and 3 qnrB19] and in 10% of c-AmpC isolates [5 aac(6')-Ib-cr and 1 qnrS1]. IncI1-ST12 and IncF were associated with blaCMY-2 and blaDHA-1, respectively. These results suggest that ac-AmpC ß-lactamases were the main mechanism of AmpC production. Isolates and plasmids both showed high genetic diversity.

Epidemiology and risk factors for infections due to AmpC ß-lactamase-producing Escherichia coli.

OBJECTIVES: To describe the prevalence and risk factors for infection due to AmpC ß-lactamase-producing Escherichia coli (AmpC-EC). METHODS: For the prevalence study, all clinical isolates of E. coli with reduced susceptibility to third-generation cephalosporins were prospectively included from June 2010 to November 2011. For risk factor analysis, a case-control study was conducted. Cases were patients with an infection due to AmpC-EC. Controls were patients infected with cephalosporin-susceptible E. coli, matched 1 : 2. Detection of blaAmpC genes was done with a multiplex AmpC-PCR, and hyperproduction of E. coli chromosomal blaAmpC by quantitative RT-PCR. Alteration of the blaAmpC promoter was studied by PCR and sequencing. RESULTS: We identified 243 (1.1%) AmpC-EC strains out of 21 563 clinical isolates. Three cases with strains carrying ESBLs, 18 strains that were considered due to colonization and 8 cases lost to clinical follow-up were excluded. Finally, 214 cases were included in the analysis. Ninety-one cases (42.5%) and 269 (62.8%) controls were strictly community acquired (P < 0.001). Thirty-five (16.3%) cases and 186 controls (43.5%) did not have any identifiable risk factor (P < 0.001). Among cases, 158 (73.8%) were found to harbour an acquired AmpC (73.4% CMY-2). Previous use of fluoroquinolones [OR 2.6 (95% CI 1.12-3.36); P = 0.008] was independently associated with AmpC-EC in the multivariate analysis. CONCLUSIONS: Prevalence of AmpC in E. coli remains low in our area. Plasmid acquisition (CMY type) represents the main mechanism of AmpC production. A high proportion of community-acquired isolates and patients with no identifiable risk factors were found. Previous use of fluoroquinolones was identified as a risk factor.

Improving health and safety conditions in agriculture through professional training of Florida farm labor supervisors.

Because farm labor supervisors (FLSs) are responsible for ensuring safe work environments for thousands of workers, providing them with adequate knowledge is critical to preserving worker health. Yet a challenge to offering professional training to FLSs, many of whom are foreign-born and have received different levels of education in the US and abroad, is implementing a program that not only results in knowledge gains but meets the expectations of a diverse audience. By offering bilingual instruction on safety and compliance, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) FLS Training program is helping to improve workplace conditions and professionalize the industry. A recent evaluation of the program combined participant observation and surveys to elicit knowledge and satisfaction levels from attendees of its fall 2012 trainings. Frequency distributions and dependent- and independent-means t-tests were used to measure and compare participant outcomes. The evaluation found that attendees rated the quality of their training experience as either high or very high and scored significantly better in posttraining knowledge tests than in pretraining knowledge tests across both languages. Nonetheless, attendees of the trainings delivered in English had significantly higher posttest scores than attendees of the trainings delivered in Spanish. As a result, the program has incorporated greater standardization of content delivery and staff development. Through assessment of its program components and educational outcomes, the program has documented its effectiveness and offers a replicable approach that can serve to improve the targeted outcomes of safety and health promotion in other states.

Footwear and locomotor skill performance in preschoolers.

The effect of footwear on locomotor skill performance was examined. 12 children (4 boys, 8 girls; M age = 56.3 mo., SD = 3.3) served as participants. Participants were randomly assigned to perform the locomotor subscale of Ulrich's Test of Gross Motor Development in two shoe conditions (Condition 1: Stride Rite athletic shoes, and Condition 2: flip flop sandals). Children scored significantly higher when wearing athletic shoes than flip-flop sandals. This finding is relevant for motor performance and safety in physical education and movement programs.

Análisis comparativo de patrones y estándares de acreditación de las carreras de medicina de la Argentina y los propuestos por la World Federal Medical Education / Comparative analysis of accreditation standards between Argentinian medical qualifications and those proposed by the World Federation for Medical Education

En la Argentina, hasta 1995 -con la sanción de la Ley de Educación Superior que incluye un capítulo específico sobre evaluación y acreditación de carreras-, las carreras de medicina no estaban obligadas a realizar procesos de autoevaluación y acreditación, encontrándose experiencias aisladas. En diciembre de 1996, de manera similar al proceso iniciado por la World Federal Medical Education (WFME), en el marco del convenio celebrado entre la Secretaría de Políticas Universitarias del Ministerio de Educación y Cultura de la Nación y la Asociación de Facultades de Ciencias Médicas de la República Argentina (AFACIMERA) se constituyeron el equipo técnico (task force) y el comité de expertos (working party) que proveyeron elementos técnicos a las instancias resolutivas para el establecimiento de patrones, estándares y recomendaciones. En este documento se analizan comparativamente el proceso de formulación y los estándares para acreditación de la educación médica de grado, aprobados en agosto de 1999 en la Argentina y los internacionales propuestos por la WFME Task Force en octubre del mismo año. Se señalan similitudes y diferencias y se exploran algunas de las explicaciones a tales diferencias. La discusión central se encuentra respecto a la acreditación como elemento de garantía y/o de mejora de la calidad. Asimismo, se plantean algunas preguntas relacionadas con cuestiones referidas a la implementación inmediatamente ligadas a la elaboración y revisión de patrones y estándares. Las reflexiones generales tienen eje en la discusión del objetivo para el cuál se plantean estos requerimientos (AU)

Acreditación de las carreras de medicina. Legalidad, legitimidad y consenso: principales aspectos / Accreditation of medical degrees. Legality, legitimacy and consensus: main aspects

El presente documento intenta dar cuenta del proceso iniciado en Argentina en diciembre de 1996 con el fin de establecer mecanismos de aseguramiento de la calidad en la educación superior tal como lo estableció la Ley en 1995. Como resultado del mismo se incluyó el título de médico en la nómina de títulos considerados de riesgo, se elaboraron los patrones y estándares para la acreditación de las carreras denominadas de interés público o de riesgo y se iniciaron las primeras experiencias de acreditación de carreras de Medicina. Se describen y analizan los aspectos conceptuales, metodológicos y operativos encontrados durante el proceso de trabajo conjunto por la Secretaría de Políticas Universitarias y la Asociación de Facultades de Medicina de la República Argentina en ese período, y se desarrollan los principales problemas planteados que surgen de tales experiencias. Finalmente, se plantean algunos interrogantes pendientes en esta forma de evaluación de la calidad de la formación superior en medicina (AU)